From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. 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"src/assets/javascripts/integrations/version/index.ts", "src/assets/javascripts/components/search/query/index.ts", "src/assets/javascripts/components/search/result/index.ts", "src/assets/javascripts/components/search/_/index.ts", "src/assets/javascripts/components/sidebar/index.ts", "src/assets/javascripts/components/source/facts/github/index.ts", "src/assets/javascripts/components/source/facts/gitlab/index.ts", "src/assets/javascripts/components/source/facts/_/index.ts", "src/assets/javascripts/components/source/_/index.ts", "src/assets/javascripts/components/tabs/index.ts", "src/assets/javascripts/components/toc/index.ts", "src/assets/javascripts/components/top/index.ts", "src/assets/javascripts/patches/indeterminate/index.ts", "src/assets/javascripts/patches/scrollfix/index.ts", "src/assets/javascripts/patches/scrolllock/index.ts"], + "sourcesContent": ["(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n (factory());\n}(this, (function () { 'use strict';\n\n /**\n * Applies the :focus-visible polyfill at the given scope.\n * A scope in this case is either the top-level Document or a Shadow Root.\n *\n * @param {(Document|ShadowRoot)} scope\n * @see https://github.com/WICG/focus-visible\n */\n function applyFocusVisiblePolyfill(scope) {\n var hadKeyboardEvent = true;\n var hadFocusVisibleRecently = false;\n var hadFocusVisibleRecentlyTimeout = null;\n\n var inputTypesAllowlist = {\n text: true,\n search: true,\n url: true,\n tel: true,\n email: true,\n password: true,\n number: true,\n date: true,\n month: true,\n week: true,\n time: true,\n datetime: true,\n 'datetime-local': true\n };\n\n /**\n * Helper function for legacy browsers and iframes which sometimes focus\n * elements like document, body, and non-interactive SVG.\n * @param {Element} el\n */\n function isValidFocusTarget(el) {\n if (\n el &&\n el !== document &&\n el.nodeName !== 'HTML' &&\n el.nodeName !== 'BODY' &&\n 'classList' in el &&\n 'contains' in el.classList\n ) {\n return true;\n }\n return false;\n }\n\n /**\n * Computes whether the given element should automatically trigger the\n * `focus-visible` class being added, i.e. whether it should always match\n * `:focus-visible` when focused.\n * @param {Element} el\n * @return {boolean}\n */\n function focusTriggersKeyboardModality(el) {\n var type = el.type;\n var tagName = el.tagName;\n\n if (tagName === 'INPUT' && inputTypesAllowlist[type] && !el.readOnly) {\n return true;\n }\n\n if (tagName === 'TEXTAREA' && !el.readOnly) {\n return true;\n }\n\n if (el.isContentEditable) {\n return true;\n }\n\n return false;\n }\n\n /**\n * Add the `focus-visible` class to the given element if it was not added by\n * the author.\n * @param {Element} el\n */\n function addFocusVisibleClass(el) {\n if (el.classList.contains('focus-visible')) {\n return;\n }\n el.classList.add('focus-visible');\n 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arguments[0] : {};\n this.action = options.action;\n this.container = options.container;\n this.emitter = options.emitter;\n this.target = options.target;\n this.text = options.text;\n this.trigger = options.trigger;\n this.selectedText = '';\n }\n /**\n * Decides which selection strategy is going to be applied based\n * on the existence of `text` and `target` properties.\n */\n\n }, {\n key: \"initSelection\",\n value: function initSelection() {\n if (this.text) {\n this.selectFake();\n } else if (this.target) {\n this.selectTarget();\n }\n }\n /**\n * Creates a fake textarea element, sets its value from `text` property,\n */\n\n }, {\n key: \"createFakeElement\",\n value: function createFakeElement() {\n var isRTL = document.documentElement.getAttribute('dir') === 'rtl';\n this.fakeElem = document.createElement('textarea'); // Prevent zooming on iOS\n\n this.fakeElem.style.fontSize = '12pt'; // Reset box model\n\n this.fakeElem.style.border = '0';\n this.fakeElem.style.padding = '0';\n this.fakeElem.style.margin = '0'; // Move element out of screen horizontally\n\n this.fakeElem.style.position = 'absolute';\n this.fakeElem.style[isRTL ? 'right' : 'left'] = '-9999px'; // Move element to the same position vertically\n\n var yPosition = window.pageYOffset || document.documentElement.scrollTop;\n this.fakeElem.style.top = \"\".concat(yPosition, \"px\");\n this.fakeElem.setAttribute('readonly', '');\n this.fakeElem.value = this.text;\n return this.fakeElem;\n }\n /**\n * Get's the value of fakeElem,\n * and makes a selection on it.\n */\n\n }, {\n key: \"selectFake\",\n value: function selectFake() {\n var _this = this;\n\n var fakeElem = this.createFakeElement();\n\n this.fakeHandlerCallback = function () {\n return _this.removeFake();\n };\n\n this.fakeHandler = this.container.addEventListener('click', this.fakeHandlerCallback) || true;\n this.container.appendChild(fakeElem);\n this.selectedText = select_default()(fakeElem);\n this.copyText();\n this.removeFake();\n }\n /**\n * Only removes the fake element after another click event, that way\n * a user can hit `Ctrl+C` to copy because selection still exists.\n */\n\n }, {\n key: \"removeFake\",\n value: function removeFake() {\n if (this.fakeHandler) {\n this.container.removeEventListener('click', this.fakeHandlerCallback);\n this.fakeHandler = null;\n this.fakeHandlerCallback = null;\n }\n\n if (this.fakeElem) {\n this.container.removeChild(this.fakeElem);\n this.fakeElem = null;\n }\n }\n /**\n * Selects the content from element passed on `target` property.\n */\n\n }, {\n key: \"selectTarget\",\n value: function selectTarget() {\n this.selectedText = select_default()(this.target);\n this.copyText();\n }\n /**\n * Executes the copy operation based on the current selection.\n */\n\n }, {\n key: \"copyText\",\n value: function copyText() {\n var succeeded;\n\n try {\n succeeded = document.execCommand(this.action);\n } catch (err) {\n succeeded = false;\n }\n\n this.handleResult(succeeded);\n }\n /**\n * Fires an event based on the copy operation result.\n * @param {Boolean} succeeded\n */\n\n }, {\n key: \"handleResult\",\n value: function handleResult(succeeded) {\n this.emitter.emit(succeeded ? 'success' : 'error', {\n action: this.action,\n text: this.selectedText,\n trigger: this.trigger,\n clearSelection: this.clearSelection.bind(this)\n });\n }\n /**\n * Moves focus away from `target` and back to the trigger, removes current selection.\n */\n\n }, {\n key: \"clearSelection\",\n value: function clearSelection() {\n if (this.trigger) {\n this.trigger.focus();\n }\n\n document.activeElement.blur();\n window.getSelection().removeAllRanges();\n }\n /**\n * Sets the `action` to be performed which can be either 'copy' or 'cut'.\n * @param {String} action\n */\n\n }, {\n key: \"destroy\",\n\n /**\n * Destroy lifecycle.\n */\n value: function destroy() {\n this.removeFake();\n }\n }, {\n key: \"action\",\n set: function set() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'copy';\n this._action = action;\n\n if (this._action !== 'copy' && this._action !== 'cut') {\n throw new Error('Invalid \"action\" value, use either \"copy\" or \"cut\"');\n }\n }\n /**\n * Gets the `action` property.\n * @return {String}\n */\n ,\n get: function get() {\n return this._action;\n }\n /**\n * Sets the `target` property using an element\n * that will be have its content copied.\n * @param {Element} target\n */\n\n }, {\n key: \"target\",\n set: function set(target) {\n if (target !== undefined) {\n if (target && _typeof(target) === 'object' && target.nodeType === 1) {\n if (this.action === 'copy' && target.hasAttribute('disabled')) {\n throw new Error('Invalid \"target\" attribute. Please use \"readonly\" instead of \"disabled\" attribute');\n }\n\n if (this.action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {\n throw new Error('Invalid \"target\" attribute. You can\\'t cut text from elements with \"readonly\" or \"disabled\" attributes');\n }\n\n this._target = target;\n } else {\n throw new Error('Invalid \"target\" value, use a valid Element');\n }\n }\n }\n /**\n * Gets the `target` property.\n * @return {String|HTMLElement}\n */\n ,\n get: function get() {\n return this._target;\n }\n }]);\n\n return ClipboardAction;\n}();\n\n/* harmony default export */ var clipboard_action = (ClipboardAction);\n;// CONCATENATED MODULE: ./src/clipboard.js\nfunction clipboard_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { clipboard_typeof = function _typeof(obj) { return typeof obj; }; } else { clipboard_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return clipboard_typeof(obj); }\n\nfunction clipboard_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction clipboard_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction clipboard_createClass(Constructor, protoProps, staticProps) { if (protoProps) clipboard_defineProperties(Constructor.prototype, protoProps); if (staticProps) clipboard_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }\n\nfunction _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }\n\nfunction _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }\n\nfunction _possibleConstructorReturn(self, call) { if (call && (clipboard_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } return _assertThisInitialized(self); }\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }\n\n\n\n\n/**\n * Helper function to retrieve attribute value.\n * @param {String} suffix\n * @param {Element} element\n */\n\nfunction getAttributeValue(suffix, element) {\n var attribute = \"data-clipboard-\".concat(suffix);\n\n if (!element.hasAttribute(attribute)) {\n return;\n }\n\n return element.getAttribute(attribute);\n}\n/**\n * Base class which takes one or more elements, adds event listeners to them,\n * and instantiates a new `ClipboardAction` on each click.\n */\n\n\nvar Clipboard = /*#__PURE__*/function (_Emitter) {\n _inherits(Clipboard, _Emitter);\n\n var _super = _createSuper(Clipboard);\n\n /**\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n * @param {Object} options\n */\n function Clipboard(trigger, options) {\n var _this;\n\n clipboard_classCallCheck(this, Clipboard);\n\n _this = _super.call(this);\n\n _this.resolveOptions(options);\n\n _this.listenClick(trigger);\n\n return _this;\n }\n /**\n * Defines if attributes would be resolved using internal setter functions\n * or custom functions that were passed in the constructor.\n * @param {Object} options\n */\n\n\n clipboard_createClass(Clipboard, [{\n key: \"resolveOptions\",\n value: function resolveOptions() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n this.action = typeof options.action === 'function' ? options.action : this.defaultAction;\n this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;\n this.text = typeof options.text === 'function' ? options.text : this.defaultText;\n this.container = clipboard_typeof(options.container) === 'object' ? options.container : document.body;\n }\n /**\n * Adds a click event listener to the passed trigger.\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n */\n\n }, {\n key: \"listenClick\",\n value: function listenClick(trigger) {\n var _this2 = this;\n\n this.listener = listen_default()(trigger, 'click', function (e) {\n return _this2.onClick(e);\n });\n }\n /**\n * Defines a new `ClipboardAction` on each click event.\n * @param {Event} e\n */\n\n }, {\n key: \"onClick\",\n value: function onClick(e) {\n var trigger = e.delegateTarget || e.currentTarget;\n\n if (this.clipboardAction) {\n this.clipboardAction = null;\n }\n\n this.clipboardAction = new clipboard_action({\n action: this.action(trigger),\n target: this.target(trigger),\n text: this.text(trigger),\n container: this.container,\n trigger: trigger,\n emitter: this\n });\n }\n /**\n * Default `action` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultAction\",\n value: function defaultAction(trigger) {\n return getAttributeValue('action', trigger);\n }\n /**\n * Default `target` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultTarget\",\n value: function defaultTarget(trigger) {\n var selector = getAttributeValue('target', trigger);\n\n if (selector) {\n return document.querySelector(selector);\n }\n }\n /**\n * Returns the support of the given action, or all actions if no action is\n * given.\n * @param {String} [action]\n */\n\n }, {\n key: \"defaultText\",\n\n /**\n * Default `text` lookup function.\n * @param {Element} trigger\n */\n value: function defaultText(trigger) {\n return getAttributeValue('text', trigger);\n }\n /**\n * Destroy lifecycle.\n */\n\n }, {\n key: \"destroy\",\n value: function destroy() {\n this.listener.destroy();\n\n if (this.clipboardAction) {\n this.clipboardAction.destroy();\n this.clipboardAction = null;\n }\n }\n }], [{\n key: \"isSupported\",\n value: function isSupported() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['copy', 'cut'];\n var actions = typeof action === 'string' ? [action] : action;\n var support = !!document.queryCommandSupported;\n actions.forEach(function (action) {\n support = support && !!document.queryCommandSupported(action);\n });\n return support;\n }\n }]);\n\n return Clipboard;\n}((tiny_emitter_default()));\n\n/* harmony default export */ var clipboard = (Clipboard);\n\n/***/ }),\n\n/***/ 828:\n/***/ (function(module) {\n\nvar DOCUMENT_NODE_TYPE = 9;\n\n/**\n * A polyfill for Element.matches()\n */\nif (typeof Element !== 'undefined' && !Element.prototype.matches) {\n var proto = Element.prototype;\n\n proto.matches = proto.matchesSelector ||\n proto.mozMatchesSelector ||\n proto.msMatchesSelector ||\n proto.oMatchesSelector ||\n proto.webkitMatchesSelector;\n}\n\n/**\n * Finds the closest parent that matches a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @return {Function}\n */\nfunction closest (element, selector) {\n while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {\n if (typeof element.matches === 'function' &&\n element.matches(selector)) {\n return element;\n }\n element = element.parentNode;\n }\n}\n\nmodule.exports = closest;\n\n\n/***/ }),\n\n/***/ 438:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar closest = __webpack_require__(828);\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction _delegate(element, selector, type, callback, useCapture) {\n var listenerFn = listener.apply(this, arguments);\n\n element.addEventListener(type, listenerFn, useCapture);\n\n return {\n destroy: function() {\n element.removeEventListener(type, listenerFn, useCapture);\n }\n }\n}\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element|String|Array} [elements]\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction delegate(elements, selector, type, callback, useCapture) {\n // Handle the regular Element usage\n if (typeof elements.addEventListener === 'function') {\n return _delegate.apply(null, arguments);\n }\n\n // Handle Element-less usage, it defaults to global delegation\n if (typeof type === 'function') {\n // Use `document` as the first parameter, then apply arguments\n // This is a short way to .unshift `arguments` without running into deoptimizations\n return _delegate.bind(null, document).apply(null, arguments);\n }\n\n // Handle Selector-based usage\n if (typeof elements === 'string') {\n elements = document.querySelectorAll(elements);\n }\n\n // Handle Array-like based usage\n return Array.prototype.map.call(elements, function (element) {\n return _delegate(element, selector, type, callback, useCapture);\n });\n}\n\n/**\n * Finds closest match and invokes callback.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Function}\n */\nfunction listener(element, selector, type, callback) {\n return function(e) {\n e.delegateTarget = closest(e.target, selector);\n\n if (e.delegateTarget) {\n callback.call(element, e);\n }\n }\n}\n\nmodule.exports = delegate;\n\n\n/***/ }),\n\n/***/ 879:\n/***/ (function(__unused_webpack_module, exports) {\n\n/**\n * Check if argument is a HTML element.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.node = function(value) {\n return value !== undefined\n && value instanceof HTMLElement\n && value.nodeType === 1;\n};\n\n/**\n * Check if argument is a list of HTML elements.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.nodeList = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return value !== undefined\n && (type === '[object NodeList]' || type === '[object HTMLCollection]')\n && ('length' in value)\n && (value.length === 0 || exports.node(value[0]));\n};\n\n/**\n * Check if argument is a string.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.string = function(value) {\n return typeof value === 'string'\n || value instanceof String;\n};\n\n/**\n * Check if argument is a function.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.fn = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return type === '[object Function]';\n};\n\n\n/***/ }),\n\n/***/ 370:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar is = __webpack_require__(879);\nvar delegate = __webpack_require__(438);\n\n/**\n * Validates all params and calls the right\n * listener function based on its target type.\n *\n * @param {String|HTMLElement|HTMLCollection|NodeList} target\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listen(target, type, callback) {\n if (!target && !type && !callback) {\n throw new Error('Missing required arguments');\n }\n\n if (!is.string(type)) {\n throw new TypeError('Second argument must be a String');\n }\n\n if (!is.fn(callback)) {\n throw new TypeError('Third argument must be a Function');\n }\n\n if (is.node(target)) {\n return listenNode(target, type, callback);\n }\n else if (is.nodeList(target)) {\n return listenNodeList(target, type, callback);\n }\n else if (is.string(target)) {\n return listenSelector(target, type, callback);\n }\n else {\n throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');\n }\n}\n\n/**\n * Adds an event listener to a HTML element\n * and returns a remove listener function.\n *\n * @param {HTMLElement} node\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNode(node, type, callback) {\n node.addEventListener(type, callback);\n\n return {\n destroy: function() {\n node.removeEventListener(type, callback);\n }\n }\n}\n\n/**\n * Add an event listener to a list of HTML elements\n * and returns a remove listener function.\n *\n * @param {NodeList|HTMLCollection} nodeList\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNodeList(nodeList, type, callback) {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.addEventListener(type, callback);\n });\n\n return {\n destroy: function() {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.removeEventListener(type, callback);\n });\n }\n }\n}\n\n/**\n * Add an event listener to a selector\n * and returns a remove listener function.\n *\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenSelector(selector, type, callback) {\n return delegate(document.body, selector, type, callback);\n}\n\nmodule.exports = listen;\n\n\n/***/ }),\n\n/***/ 817:\n/***/ (function(module) {\n\nfunction select(element) {\n var selectedText;\n\n if (element.nodeName === 'SELECT') {\n element.focus();\n\n selectedText = element.value;\n }\n else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {\n var isReadOnly = element.hasAttribute('readonly');\n\n if (!isReadOnly) {\n element.setAttribute('readonly', '');\n }\n\n element.select();\n element.setSelectionRange(0, element.value.length);\n\n if (!isReadOnly) {\n element.removeAttribute('readonly');\n }\n\n selectedText = element.value;\n }\n else {\n if (element.hasAttribute('contenteditable')) {\n element.focus();\n }\n\n var selection = window.getSelection();\n var range = document.createRange();\n\n range.selectNodeContents(element);\n selection.removeAllRanges();\n selection.addRange(range);\n\n selectedText = selection.toString();\n }\n\n return selectedText;\n}\n\nmodule.exports = select;\n\n\n/***/ }),\n\n/***/ 279:\n/***/ (function(module) {\n\nfunction E () {\n // Keep this empty so it's easier to inherit from\n // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n on: function (name, callback, ctx) {\n var e = this.e || (this.e = {});\n\n (e[name] || (e[name] = [])).push({\n fn: callback,\n ctx: ctx\n });\n\n return this;\n },\n\n once: function (name, callback, ctx) {\n var self = this;\n function listener () {\n self.off(name, listener);\n callback.apply(ctx, arguments);\n };\n\n listener._ = callback\n return this.on(name, listener, ctx);\n },\n\n emit: function (name) {\n var data = [].slice.call(arguments, 1);\n var evtArr = ((this.e || (this.e = {}))[name] || []).slice();\n var i = 0;\n var len = evtArr.length;\n\n for (i; i < len; i++) {\n evtArr[i].fn.apply(evtArr[i].ctx, data);\n }\n\n return this;\n },\n\n off: function (name, callback) {\n var e = this.e || (this.e = {});\n var evts = e[name];\n var liveEvents = [];\n\n if (evts && callback) {\n for (var i = 0, len = evts.length; i < len; i++) {\n if (evts[i].fn !== callback && evts[i].fn._ !== callback)\n liveEvents.push(evts[i]);\n }\n }\n\n // Remove event from queue to prevent memory leak\n // Suggested by https://github.com/lazd\n // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910\n\n (liveEvents.length)\n ? e[name] = liveEvents\n : delete e[name];\n\n return this;\n }\n};\n\nmodule.exports = E;\nmodule.exports.TinyEmitter = E;\n\n\n/***/ })\n\n/******/ \t});\n/************************************************************************/\n/******/ \t// The module cache\n/******/ \tvar __webpack_module_cache__ = {};\n/******/ \t\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(__webpack_module_cache__[moduleId]) {\n/******/ \t\t\treturn __webpack_module_cache__[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = __webpack_module_cache__[moduleId] = {\n/******/ \t\t\t// no module.id needed\n/******/ \t\t\t// no module.loaded needed\n/******/ \t\t\texports: {}\n/******/ \t\t};\n/******/ \t\n/******/ \t\t// Execute the module function\n/******/ \t\t__webpack_modules__[moduleId](module, module.exports, __webpack_require__);\n/******/ \t\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/ \t\n/************************************************************************/\n/******/ \t/* webpack/runtime/compat get default export */\n/******/ \t!function() {\n/******/ \t\t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t\t__webpack_require__.n = function(module) {\n/******/ \t\t\tvar getter = module && module.__esModule ?\n/******/ \t\t\t\tfunction() { return module['default']; } :\n/******/ \t\t\t\tfunction() { return module; };\n/******/ \t\t\t__webpack_require__.d(getter, { a: getter });\n/******/ \t\t\treturn getter;\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/define property getters */\n/******/ \t!function() {\n/******/ \t\t// define getter functions for harmony exports\n/******/ \t\t__webpack_require__.d = function(exports, definition) {\n/******/ \t\t\tfor(var key in definition) {\n/******/ \t\t\t\tif(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {\n/******/ \t\t\t\t\tObject.defineProperty(exports, key, { enumerable: true, get: definition[key] });\n/******/ \t\t\t\t}\n/******/ \t\t\t}\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/hasOwnProperty shorthand */\n/******/ \t!function() {\n/******/ \t\t__webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }\n/******/ \t}();\n/******/ \t\n/************************************************************************/\n/******/ \t// module exports must be returned from runtime so entry inlining is disabled\n/******/ \t// startup\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(134);\n/******/ })()\n.default;\n});", "/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport \"focus-visible\"\nimport { NEVER, Subject, defer, merge } from \"rxjs\"\nimport {\n delay,\n filter,\n map,\n mergeWith,\n shareReplay,\n switchMap\n} from \"rxjs/operators\"\n\nimport { configuration, feature } from \"./_\"\nimport {\n at,\n getElement,\n requestJSON,\n setToggle,\n watchDocument,\n watchKeyboard,\n watchLocation,\n watchLocationTarget,\n watchMedia,\n watchPrint,\n watchViewport\n} from \"./browser\"\nimport {\n getComponentElement,\n getComponentElements,\n mountBackToTop,\n mountContent,\n mountDialog,\n mountHeader,\n mountHeaderTitle,\n mountPalette,\n mountSearch,\n mountSidebar,\n mountSource,\n mountTableOfContents,\n mountTabs,\n watchHeader,\n watchMain\n} from \"./components\"\nimport {\n SearchIndex,\n setupClipboardJS,\n setupInstantLoading,\n setupVersionSelector\n} from \"./integrations\"\nimport {\n patchIndeterminate,\n patchScrollfix,\n patchScrolllock\n} from \"./patches\"\n\n/* ----------------------------------------------------------------------------\n * Application\n * ------------------------------------------------------------------------- */\n\n/* Yay, JavaScript is available */\ndocument.documentElement.classList.remove(\"no-js\")\ndocument.documentElement.classList.add(\"js\")\n\n/* Set up navigation observables and subjects */\nconst document$ = watchDocument()\nconst location$ = watchLocation()\nconst target$ = watchLocationTarget()\nconst keyboard$ = watchKeyboard()\n\n/* Set up media observables */\nconst viewport$ = watchViewport()\nconst tablet$ = watchMedia(\"(min-width: 960px)\")\nconst screen$ = watchMedia(\"(min-width: 1220px)\")\nconst print$ = watchPrint()\n\n/* Retrieve search index, if search is enabled */\nconst config = configuration()\nconst index$ = document.forms.namedItem(\"search\")\n ? __search?.index || requestJSON(\n `${config.base}/search/search_index.json`\n )\n : NEVER\n\n/* Set up Clipboard.js integration */\nconst alert$ = new Subject()\nsetupClipboardJS({ alert$ })\n\n/* Set up instant loading, if enabled */\nif (feature(\"navigation.instant\"))\n setupInstantLoading({ document$, location$, viewport$ })\n\n/* Set up version selector */\nif (config.version?.provider === \"mike\")\n setupVersionSelector()\n\n/* Always close drawer and search on navigation */\nmerge(location$, target$)\n .pipe(\n delay(125)\n )\n .subscribe(() => {\n setToggle(\"drawer\", false)\n setToggle(\"search\", false)\n })\n\n/* Set up global keyboard handlers */\nkeyboard$\n .pipe(\n filter(({ mode }) => mode === \"global\")\n )\n .subscribe(key => {\n switch (key.type) {\n\n /* Go to previous page */\n case \"p\":\n case \",\":\n const prev = getElement(\"[href][rel=prev]\")\n if (typeof prev !== \"undefined\")\n prev.click()\n break\n\n /* Go to next page */\n case \"n\":\n case \".\":\n const next = getElement(\"[href][rel=next]\")\n if (typeof next !== \"undefined\")\n next.click()\n break\n }\n })\n\n/* Set up patches */\npatchIndeterminate({ document$, tablet$ })\npatchScrollfix({ document$ })\npatchScrolllock({ viewport$, tablet$ })\n\n/* Set up header and main area observable */\nconst header$ = watchHeader(getComponentElement(\"header\"), { viewport$ })\nconst main$ = document$\n .pipe(\n map(() => getComponentElement(\"main\")),\n switchMap(el => watchMain(el, { viewport$, header$ })),\n shareReplay(1)\n )\n\n/* Set up control component observables */\nconst control$ = merge(\n\n /* Dialog */\n ...getComponentElements(\"dialog\")\n .map(el => mountDialog(el, { alert$ })),\n\n /* Header */\n ...getComponentElements(\"header\")\n .map(el => mountHeader(el, { viewport$, header$, main$ })),\n\n /* Color palette */\n ...getComponentElements(\"palette\")\n .map(el => mountPalette(el)),\n\n /* Search */\n ...getComponentElements(\"search\")\n .map(el => mountSearch(el, { index$, keyboard$ })),\n\n /* Repository information */\n ...getComponentElements(\"source\")\n .map(el => mountSource(el))\n)\n\n/* Set up content component observables */\nconst content$ = defer(() => merge(\n\n /* Content */\n ...getComponentElements(\"content\")\n .map(el => mountContent(el, { target$, viewport$, print$ })),\n\n /* Header title */\n ...getComponentElements(\"header-title\")\n .map(el => mountHeaderTitle(el, { viewport$, header$ })),\n\n /* Sidebar */\n ...getComponentElements(\"sidebar\")\n .map(el => el.getAttribute(\"data-md-type\") === \"navigation\"\n ? at(screen$, () => mountSidebar(el, { viewport$, header$, main$ }))\n : at(tablet$, () => mountSidebar(el, { viewport$, header$, main$ }))\n ),\n\n /* Navigation tabs */\n ...getComponentElements(\"tabs\")\n .map(el => mountTabs(el, { viewport$, header$ })),\n\n /* Table of contents */\n ...getComponentElements(\"toc\")\n .map(el => mountTableOfContents(el, { viewport$, header$ })),\n\n /* Back-to-top button */\n ...getComponentElements(\"top\")\n .map(el => mountBackToTop(el, { viewport$, main$ }))\n))\n\n/* Set up component observables */\nconst component$ = document$\n .pipe(\n switchMap(() => content$),\n mergeWith(control$),\n shareReplay(1)\n )\n\n/* Subscribe to all components */\ncomponent$.subscribe()\n\n/* ----------------------------------------------------------------------------\n * Exports\n * ------------------------------------------------------------------------- */\n\nwindow.document$ = document$ /* Document observable */\nwindow.location$ = location$ /* Location subject */\nwindow.target$ = target$ /* Location target observable */\nwindow.keyboard$ = keyboard$ /* Keyboard observable */\nwindow.viewport$ = viewport$ /* Viewport observable */\nwindow.tablet$ = tablet$ /* Tablet observable */\nwindow.screen$ = screen$ /* Screen observable */\nwindow.print$ = print$ /* Print mode observable */\nwindow.alert$ = alert$ /* Alert subject */\nwindow.component$ = component$ /* Component observable */\n", "import tslib from '../tslib.js';\r\nconst {\r\n __extends,\r\n __assign,\r\n __rest,\r\n __decorate,\r\n __param,\r\n __metadata,\r\n __awaiter,\r\n __generator,\r\n __exportStar,\r\n __createBinding,\r\n __values,\r\n __read,\r\n __spread,\r\n __spreadArrays,\r\n __spreadArray,\r\n __await,\r\n __asyncGenerator,\r\n __asyncDelegator,\r\n __asyncValues,\r\n __makeTemplateObject,\r\n __importStar,\r\n __importDefault,\r\n __classPrivateFieldGet,\r\n __classPrivateFieldSet,\r\n} = tslib;\r\nexport {\r\n __extends,\r\n __assign,\r\n __rest,\r\n __decorate,\r\n __param,\r\n __metadata,\r\n __awaiter,\r\n __generator,\r\n __exportStar,\r\n __createBinding,\r\n __values,\r\n __read,\r\n __spread,\r\n __spreadArrays,\r\n __spreadArray,\r\n __await,\r\n __asyncGenerator,\r\n __asyncDelegator,\r\n __asyncValues,\r\n __makeTemplateObject,\r\n __importStar,\r\n __importDefault,\r\n __classPrivateFieldGet,\r\n __classPrivateFieldSet,\r\n};\r\n", null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ReplaySubject, Subject, fromEvent } from \"rxjs\"\nimport { mapTo } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch document\n *\n * Documents are implemented as subjects, so all downstream observables are\n * automatically updated when a new document is emitted.\n *\n * @returns Document subject\n */\nexport function watchDocument(): Subject {\n const document$ = new ReplaySubject()\n fromEvent(document, \"DOMContentLoaded\")\n .pipe(\n mapTo(document)\n )\n .subscribe(document$)\n\n /* Return document */\n return document$\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve an element matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @returns Element or nothing\n */\nexport function getElement(\n selector: T, node?: ParentNode\n): HTMLElementTagNameMap[T]\n\nexport function getElement(\n selector: string, node?: ParentNode\n): T | undefined\n\nexport function getElement(\n selector: string, node: ParentNode = document\n): T | undefined {\n return node.querySelector(selector) || undefined\n}\n\n/**\n * Retrieve an element matching a query selector or throw a reference error\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @returns Element\n */\nexport function getElementOrThrow(\n selector: T, node?: ParentNode\n): HTMLElementTagNameMap[T]\n\nexport function getElementOrThrow(\n selector: string, node?: ParentNode\n): T\n\nexport function getElementOrThrow(\n selector: string, node: ParentNode = document\n): T {\n const el = getElement(selector, node)\n if (typeof el === \"undefined\")\n throw new ReferenceError(\n `Missing element: expected \"${selector}\" to be present`\n )\n return el\n}\n\n/**\n * Retrieve the currently active element\n *\n * @returns Element or nothing\n */\nexport function getActiveElement(): HTMLElement | undefined {\n return document.activeElement instanceof HTMLElement\n ? document.activeElement\n : undefined\n}\n\n/**\n * Retrieve all elements matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @returns Elements\n */\nexport function getElements(\n selector: T, node?: ParentNode\n): HTMLElementTagNameMap[T][]\n\nexport function getElements(\n selector: string, node?: ParentNode\n): T[]\n\nexport function getElements(\n selector: string, node: ParentNode = document\n): T[] {\n return Array.from(node.querySelectorAll(selector))\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Create an element\n *\n * @template T - Tag name type\n *\n * @param tagName - Tag name\n *\n * @returns Element\n */\nexport function createElement(\n tagName: T\n): HTMLElementTagNameMap[T] {\n return document.createElement(tagName)\n}\n\n/**\n * Replace an element with the given list of nodes\n *\n * @param el - Element\n * @param nodes - Replacement nodes\n */\nexport function replaceElement(\n el: HTMLElement, ...nodes: Node[]\n): void {\n el.replaceWith(...nodes)\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\nimport { getActiveElement } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element focus\n *\n * @param el - Element\n * @param value - Whether the element should be focused\n */\nexport function setElementFocus(\n el: HTMLElement, value = true\n): void {\n if (value)\n el.focus()\n else\n el.blur()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element focus\n *\n * @param el - Element\n *\n * @returns Element focus observable\n */\nexport function watchElementFocus(\n el: HTMLElement\n): Observable {\n return merge(\n fromEvent(el, \"focus\"),\n fromEvent(el, \"blur\")\n )\n .pipe(\n map(({ type }) => type === \"focus\"),\n startWith(el === getActiveElement())\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n NEVER,\n Observable,\n Subject,\n defer,\n of\n} from \"rxjs\"\nimport {\n filter,\n finalize,\n map,\n shareReplay,\n startWith,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementSize {\n width: number /* Element width */\n height: number /* Element height */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Resize observer entry subject\n */\nconst entry$ = new Subject()\n\n/**\n * Resize observer observable\n *\n * This observable will create a `ResizeObserver` on the first subscription\n * and will automatically terminate it when there are no more subscribers.\n * It's quite important to centralize observation in a single `ResizeObserver`,\n * as the performance difference can be quite dramatic, as the link shows.\n *\n * @see https://bit.ly/3iIYfEm - Google Groups on performance\n */\nconst observer$ = defer(() => of(\n new ResizeObserver(entries => {\n for (const entry of entries)\n entry$.next(entry)\n })\n))\n .pipe(\n switchMap(resize => NEVER.pipe(startWith(resize))\n .pipe(\n finalize(() => resize.disconnect())\n )\n ),\n shareReplay(1)\n )\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element size\n *\n * @param el - Element\n *\n * @returns Element size\n */\nexport function getElementSize(el: HTMLElement): ElementSize {\n return {\n width: el.offsetWidth,\n height: el.offsetHeight\n }\n}\n\n/**\n * Retrieve element content size, i.e. including overflowing content\n *\n * @param el - Element\n *\n * @returns Element size\n */\nexport function getElementContentSize(el: HTMLElement): ElementSize {\n return {\n width: el.scrollWidth,\n height: el.scrollHeight\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element size\n *\n * This function returns an observable that subscribes to a single internal\n * instance of `ResizeObserver` upon subscription, and emit resize events until\n * termination. Note that this function should not be called with the same\n * element twice, as the first unsubscription will terminate observation.\n *\n * Sadly, we can't use the `DOMRect` objects returned by the observer, because\n * we need the emitted values to be consistent with `getElementSize`, which will\n * return the used values (rounded) and not actual values (unrounded). Thus, we\n * use the `offset*` properties. See the linked GitHub issue.\n *\n * @see https://bit.ly/3m0k3he - GitHub issue\n *\n * @param el - Element\n *\n * @returns Element size observable\n */\nexport function watchElementSize(\n el: HTMLElement\n): Observable {\n return observer$\n .pipe(\n tap(observer => observer.observe(el)),\n switchMap(observer => entry$\n .pipe(\n filter(({ target }) => target === el),\n finalize(() => observer.unobserve(el)),\n map(() => getElementSize(el))\n )\n ),\n startWith(getElementSize(el))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport {\n distinctUntilChanged,\n map,\n startWith\n} from \"rxjs/operators\"\n\nimport {\n getElementContentSize,\n getElementSize\n} from \"../size\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementOffset {\n x: number /* Horizontal offset */\n y: number /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element offset\n *\n * @param el - Element\n *\n * @returns Element offset\n */\nexport function getElementOffset(el: HTMLElement): ElementOffset {\n return {\n x: el.scrollLeft,\n y: el.scrollTop\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element offset\n *\n * @param el - Element\n *\n * @returns Element offset observable\n */\nexport function watchElementOffset(\n el: HTMLElement\n): Observable {\n return merge(\n fromEvent(el, \"scroll\"),\n fromEvent(window, \"resize\")\n )\n .pipe(\n map(() => getElementOffset(el)),\n startWith(getElementOffset(el))\n )\n}\n\n/**\n * Watch element threshold\n *\n * This function returns an observable which emits whether the bottom scroll\n * offset of an elements is within a certain threshold.\n *\n * @param el - Element\n * @param threshold - Threshold\n *\n * @returns Element threshold observable\n */\nexport function watchElementThreshold(\n el: HTMLElement, threshold = 16\n): Observable {\n return watchElementOffset(el)\n .pipe(\n map(({ y }) => {\n const visible = getElementSize(el)\n const content = getElementContentSize(el)\n return y >= (\n content.height - visible.height - threshold\n )\n }),\n distinctUntilChanged()\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element text selection\n *\n * @param el - Element\n */\nexport function setElementSelection(\n el: HTMLElement\n): void {\n if (el instanceof HTMLInputElement)\n el.select()\n else\n throw new Error(\"Not implemented\")\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\nimport { getElementOrThrow } from \"../element\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle\n */\nexport type Toggle =\n | \"drawer\" /* Toggle for drawer */\n | \"search\" /* Toggle for search */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle map\n */\nconst toggles: Record = {\n drawer: getElementOrThrow(\"[data-md-toggle=drawer]\"),\n search: getElementOrThrow(\"[data-md-toggle=search]\")\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve the value of a toggle\n *\n * @param name - Toggle\n *\n * @returns Toggle value\n */\nexport function getToggle(name: Toggle): boolean {\n return toggles[name].checked\n}\n\n/**\n * Set toggle\n *\n * Simulating a click event seems to be the most cross-browser compatible way\n * of changing the value while also emitting a `change` event. Before, Material\n * used `CustomEvent` to programmatically change the value of a toggle, but this\n * is a much simpler and cleaner solution which doesn't require a polyfill.\n *\n * @param name - Toggle\n * @param value - Toggle value\n */\nexport function setToggle(name: Toggle, value: boolean): void {\n if (toggles[name].checked !== value)\n toggles[name].click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch toggle\n *\n * @param name - Toggle\n *\n * @returns Toggle value observable\n */\nexport function watchToggle(name: Toggle): Observable {\n const el = toggles[name]\n return fromEvent(el, \"change\")\n .pipe(\n map(() => el.checked),\n startWith(el.checked)\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { filter, map, share } from \"rxjs/operators\"\n\nimport { getActiveElement } from \"../element\"\nimport { getToggle } from \"../toggle\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Keyboard mode\n */\nexport type KeyboardMode =\n | \"global\" /* Global */\n | \"search\" /* Search is open */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Keyboard\n */\nexport interface Keyboard {\n mode: KeyboardMode /* Keyboard mode */\n type: string /* Key type */\n claim(): void /* Key claim */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether an element may receive keyboard input\n *\n * @param el - Element\n *\n * @returns Test result\n */\nfunction isSusceptibleToKeyboard(el: HTMLElement): boolean {\n switch (el.tagName) {\n\n /* Form elements */\n case \"INPUT\":\n case \"SELECT\":\n case \"TEXTAREA\":\n return true\n\n /* Everything else */\n default:\n return el.isContentEditable\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch keyboard\n *\n * @returns Keyboard observable\n */\nexport function watchKeyboard(): Observable {\n return fromEvent(window, \"keydown\")\n .pipe(\n filter(ev => !(ev.metaKey || ev.ctrlKey)),\n map(ev => ({\n mode: getToggle(\"search\") ? \"search\" : \"global\",\n type: ev.key,\n claim() {\n ev.preventDefault()\n ev.stopPropagation()\n }\n } as Keyboard)),\n filter(({ mode }) => {\n if (mode === \"global\") {\n const active = getActiveElement()\n if (typeof active !== \"undefined\")\n return !isSusceptibleToKeyboard(active)\n }\n return true\n }),\n share()\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Subject } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location\n *\n * This function returns a `URL` object (and not `Location`) to normalize the\n * typings across the application. Furthermore, locations need to be tracked\n * without setting them and `Location` is a singleton which represents the\n * current location.\n *\n * @returns URL\n */\nexport function getLocation(): URL {\n return new URL(location.href)\n}\n\n/**\n * Set location\n *\n * @param url - URL to change to\n */\nexport function setLocation(url: URL): void {\n location.href = url.href\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location\n *\n * @returns Location subject\n */\nexport function watchLocation(): Subject {\n return new Subject()\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, of } from \"rxjs\"\nimport { filter, map, share, startWith, switchMap } from \"rxjs/operators\"\n\nimport { createElement, getElement } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location hash\n *\n * @returns Location hash\n */\nexport function getLocationHash(): string {\n return location.hash.substring(1)\n}\n\n/**\n * Set location hash\n *\n * Setting a new fragment identifier via `location.hash` will have no effect\n * if the value doesn't change. When a new fragment identifier is set, we want\n * the browser to target the respective element at all times, which is why we\n * use this dirty little trick.\n *\n * @param hash - Location hash\n */\nexport function setLocationHash(hash: string): void {\n const el = createElement(\"a\")\n el.href = hash\n el.addEventListener(\"click\", ev => ev.stopPropagation())\n el.click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location hash\n *\n * @returns Location hash observable\n */\nexport function watchLocationHash(): Observable {\n return fromEvent(window, \"hashchange\")\n .pipe(\n map(getLocationHash),\n startWith(getLocationHash()),\n filter(hash => hash.length > 0),\n share()\n )\n}\n\n/**\n * Watch location target\n *\n * @returns Location target observable\n */\nexport function watchLocationTarget(): Observable {\n return watchLocationHash()\n .pipe(\n switchMap(id => of(getElement(`[id=\"${id}\"]`)!))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n NEVER,\n Observable,\n fromEvent,\n fromEventPattern\n} from \"rxjs\"\nimport {\n mapTo,\n startWith,\n switchMap\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch media query\n *\n * Note that although `MediaQueryList.addListener` is deprecated we have to\n * use it, because it's the only way to ensure proper downward compatibility.\n *\n * @see https://bit.ly/3dUBH2m - GitHub issue\n *\n * @param query - Media query\n *\n * @returns Media observable\n */\nexport function watchMedia(query: string): Observable {\n const media = matchMedia(query)\n return fromEventPattern(next => (\n media.addListener(() => next(media.matches))\n ))\n .pipe(\n startWith(media.matches)\n )\n}\n\n/**\n * Watch print mode, cross-browser\n *\n * @returns Print mode observable\n */\nexport function watchPrint(): Observable {\n return fromEvent(window, \"beforeprint\")\n .pipe(\n mapTo(undefined)\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Toggle an observable with a media observable\n *\n * @template T - Data type\n *\n * @param query$ - Media observable\n * @param factory - Observable factory\n *\n * @returns Toggled observable\n */\nexport function at(\n query$: Observable, factory: () => Observable\n): Observable {\n return query$\n .pipe(\n switchMap(active => active ? factory() : NEVER)\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, from } from \"rxjs\"\nimport {\n filter,\n map,\n shareReplay,\n switchMap\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch the given URL\n *\n * @param url - Request URL\n * @param options - Options\n *\n * @returns Response observable\n */\nexport function request(\n url: URL | string, options: RequestInit = { credentials: \"same-origin\" }\n): Observable {\n return from(fetch(`${url}`, options))\n .pipe(\n filter(res => res.status === 200),\n )\n}\n\n/**\n * Fetch JSON from the given URL\n *\n * @template T - Data type\n *\n * @param url - Request URL\n * @param options - Options\n *\n * @returns Data observable\n */\nexport function requestJSON(\n url: URL | string, options?: RequestInit\n): Observable {\n return request(url, options)\n .pipe(\n switchMap(res => res.json()),\n shareReplay(1)\n )\n}\n\n/**\n * Fetch XML from the given URL\n *\n * @param url - Request URL\n * @param options - Options\n *\n * @returns Data observable\n */\nexport function requestXML(\n url: URL | string, options?: RequestInit\n): Observable {\n const dom = new DOMParser()\n return request(url, options)\n .pipe(\n switchMap(res => res.text()),\n map(res => dom.parseFromString(res, \"text/xml\")),\n shareReplay(1)\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport offset\n */\nexport interface ViewportOffset {\n x: number /* Horizontal offset */\n y: number /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport offset\n *\n * On iOS Safari, viewport offset can be negative due to overflow scrolling.\n * As this may induce strange behaviors downstream, we'll just limit it to 0.\n *\n * @returns Viewport offset\n */\nexport function getViewportOffset(): ViewportOffset {\n return {\n x: Math.max(0, pageXOffset),\n y: Math.max(0, pageYOffset)\n }\n}\n\n/**\n * Set viewport offset\n *\n * @param offset - Viewport offset\n */\nexport function setViewportOffset(\n { x, y }: Partial\n): void {\n window.scrollTo(x || 0, y || 0)\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport offset\n *\n * @returns Viewport offset observable\n */\nexport function watchViewportOffset(): Observable {\n return merge(\n fromEvent(window, \"scroll\", { passive: true }),\n fromEvent(window, \"resize\", { passive: true })\n )\n .pipe(\n map(getViewportOffset),\n startWith(getViewportOffset())\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport size\n */\nexport interface ViewportSize {\n width: number /* Viewport width */\n height: number /* Viewport height */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport size\n *\n * @returns Viewport size\n */\nexport function getViewportSize(): ViewportSize {\n return {\n width: innerWidth,\n height: innerHeight\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport size\n *\n * @returns Viewport size observable\n */\nexport function watchViewportSize(): Observable {\n return fromEvent(window, \"resize\", { passive: true })\n .pipe(\n map(getViewportSize),\n startWith(getViewportSize())\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest } from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n map,\n shareReplay\n} from \"rxjs/operators\"\n\nimport { Header } from \"~/components\"\n\nimport {\n ViewportOffset,\n watchViewportOffset\n} from \"../offset\"\nimport {\n ViewportSize,\n watchViewportSize\n} from \"../size\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport\n */\nexport interface Viewport {\n offset: ViewportOffset /* Viewport offset */\n size: ViewportSize /* Viewport size */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch at options\n */\ninterface WatchAtOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
/* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport\n *\n * @returns Viewport observable\n */\nexport function watchViewport(): Observable {\n return combineLatest([\n watchViewportOffset(),\n watchViewportSize()\n ])\n .pipe(\n map(([offset, size]) => ({ offset, size })),\n shareReplay(1)\n )\n}\n\n/**\n * Watch viewport relative to element\n *\n * @param el - Element\n * @param options - Options\n *\n * @returns Viewport observable\n */\nexport function watchViewportAt(\n el: HTMLElement, { viewport$, header$ }: WatchAtOptions\n): Observable {\n const size$ = viewport$\n .pipe(\n distinctUntilKeyChanged(\"size\")\n )\n\n /* Compute element offset */\n const offset$ = combineLatest([size$, header$])\n .pipe(\n map((): ViewportOffset => ({\n x: el.offsetLeft,\n y: el.offsetTop\n }))\n )\n\n /* Compute relative viewport, return hot observable */\n return combineLatest([header$, viewport$, offset$])\n .pipe(\n map(([{ height }, { offset, size }, { x, y }]) => ({\n offset: {\n x: offset.x - x,\n y: offset.y - y + height\n },\n size\n }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, Subject, fromEvent } from \"rxjs\"\nimport {\n map,\n share,\n switchMapTo,\n tap,\n throttle\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Worker message\n */\nexport interface WorkerMessage {\n type: unknown /* Message type */\n data?: unknown /* Message data */\n}\n\n/**\n * Worker handler\n *\n * @template T - Message type\n */\nexport interface WorkerHandler<\n T extends WorkerMessage\n> {\n tx$: Subject /* Message transmission subject */\n rx$: Observable /* Message receive observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n *\n * @template T - Worker message type\n */\ninterface WatchOptions {\n tx$: Observable /* Message transmission observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch a web worker\n *\n * This function returns an observable that sends all values emitted by the\n * message observable to the web worker. Web worker communication is expected\n * to be bidirectional (request-response) and synchronous. Messages that are\n * emitted during a pending request are throttled, the last one is emitted.\n *\n * @param worker - Web worker\n * @param options - Options\n *\n * @returns Worker message observable\n */\nexport function watchWorker(\n worker: Worker, { tx$ }: WatchOptions\n): Observable {\n\n /* Intercept messages from worker-like objects */\n const rx$ = fromEvent(worker, \"message\")\n .pipe(\n map(({ data }) => data as T)\n )\n\n /* Send and receive messages, return hot observable */\n return tx$\n .pipe(\n throttle(() => rx$, { leading: true, trailing: true }),\n tap(message => worker.postMessage(message)),\n switchMapTo(rx$),\n share()\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { getElementOrThrow, getLocation } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Feature flag\n */\nexport type Flag =\n | \"header.autohide\" /* Hide header */\n | \"navigation.expand\" /* Automatic expansion */\n | \"navigation.instant\" /* Instant loading */\n | \"navigation.sections\" /* Sections navigation */\n | \"navigation.tabs\" /* Tabs navigation */\n | \"navigation.top\" /* Back-to-top button */\n | \"toc.integrate\" /* Integrated table of contents */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Translation\n */\nexport type Translation =\n | \"clipboard.copy\" /* Copy to clipboard */\n | \"clipboard.copied\" /* Copied to clipboard */\n | \"search.config.lang\" /* Search language */\n | \"search.config.pipeline\" /* Search pipeline */\n | \"search.config.separator\" /* Search separator */\n | \"search.placeholder\" /* Search */\n | \"search.result.placeholder\" /* Type to start searching */\n | \"search.result.none\" /* No matching documents */\n | \"search.result.one\" /* 1 matching document */\n | \"search.result.other\" /* # matching documents */\n | \"search.result.more.one\" /* 1 more on this page */\n | \"search.result.more.other\" /* # more on this page */\n | \"search.result.term.missing\" /* Missing */\n | \"select.version.title\" /* Version selector */\n\n/**\n * Translations\n */\nexport type Translations = Record\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Versioning\n */\nexport interface Versioning {\n provider: \"mike\" /* Version provider */\n}\n\n/**\n * Configuration\n */\nexport interface Config {\n base: string /* Base URL */\n features: Flag[] /* Feature flags */\n translations: Translations /* Translations */\n search: string /* Search worker URL */\n version?: Versioning /* Versioning */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve global configuration and make base URL absolute\n */\nconst script = getElementOrThrow(\"#__config\")\nconst config: Config = JSON.parse(script.textContent!)\nconfig.base = new URL(config.base, getLocation())\n .toString()\n .replace(/\\/$/, \"\")\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve global configuration\n *\n * @returns Global configuration\n */\nexport function configuration(): Config {\n return config\n}\n\n/**\n * Check whether a feature flag is enabled\n *\n * @param flag - Feature flag\n *\n * @returns Test result\n */\nexport function feature(flag: Flag): boolean {\n return config.features.includes(flag)\n}\n\n/**\n * Retrieve the translation for the given key\n *\n * @param key - Key to be translated\n * @param value - Positional value, if any\n *\n * @returns Translation\n */\nexport function translation(\n key: Translation, value?: string | number\n): string {\n return typeof value !== \"undefined\"\n ? config.translations[key].replace(\"#\", value.toString())\n : config.translations[key]\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { getElementOrThrow, getElements } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Component\n */\nexport type ComponentType =\n | \"announce\" /* Announcement bar */\n | \"container\" /* Container */\n | \"content\" /* Content */\n | \"dialog\" /* Dialog */\n | \"header\" /* Header */\n | \"header-title\" /* Header title */\n | \"header-topic\" /* Header topic */\n | \"main\" /* Main area */\n | \"palette\" /* Color palette */\n | \"search\" /* Search */\n | \"search-query\" /* Search input */\n | \"search-result\" /* Search results */\n | \"sidebar\" /* Sidebar */\n | \"skip\" /* Skip link */\n | \"source\" /* Repository information */\n | \"tabs\" /* Navigation tabs */\n | \"toc\" /* Table of contents */\n | \"top\" /* Back-to-top button */\n\n/**\n * A component\n *\n * @template T - Component type\n * @template U - Reference type\n */\nexport type Component<\n T extends {} = {},\n U extends HTMLElement = HTMLElement\n> =\n T & {\n ref: U /* Component reference */\n }\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Component type map\n */\ninterface ComponentTypeMap {\n \"announce\": HTMLElement /* Announcement bar */\n \"container\": HTMLElement /* Container */\n \"content\": HTMLElement /* Content */\n \"dialog\": HTMLElement /* Dialog */\n \"header\": HTMLElement /* Header */\n \"header-title\": HTMLElement /* Header title */\n \"header-topic\": HTMLElement /* Header topic */\n \"main\": HTMLElement /* Main area */\n \"palette\": HTMLElement /* Color palette */\n \"search\": HTMLElement /* Search */\n \"search-query\": HTMLInputElement /* Search input */\n \"search-result\": HTMLElement /* Search results */\n \"sidebar\": HTMLElement /* Sidebar */\n \"skip\": HTMLAnchorElement /* Skip link */\n \"source\": HTMLAnchorElement /* Repository information */\n \"tabs\": HTMLElement /* Navigation tabs */\n \"toc\": HTMLElement /* Table of contents */\n \"top\": HTMLAnchorElement /* Back-to-top button */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve the element for a given component or throw a reference error\n *\n * @template T - Component type\n *\n * @param type - Component type\n * @param node - Node of reference\n *\n * @returns Element\n */\nexport function getComponentElement(\n type: T, node: ParentNode = document\n): ComponentTypeMap[T] {\n return getElementOrThrow(`[data-md-component=${type}]`, node)\n}\n\n/**\n * Retrieve all elements for a given component\n *\n * @template T - Component type\n *\n * @param type - Component type\n * @param node - Node of reference\n *\n * @returns Elements\n */\nexport function getComponentElements(\n type: T, node: ParentNode = document\n): ComponentTypeMap[T][] {\n return getElements(`[data-md-component=${type}]`, node)\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport ClipboardJS from \"clipboard\"\nimport {\n NEVER,\n Observable,\n Subject,\n fromEvent,\n merge,\n of\n} from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n finalize,\n map,\n switchMap,\n tap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport { resetFocusable, setFocusable } from \"~/actions\"\nimport {\n Viewport,\n getElementContentSize,\n getElementSize,\n getElements,\n watchMedia\n} from \"~/browser\"\nimport { renderClipboardButton } from \"~/templates\"\n\nimport { Component } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Code block\n */\nexport interface CodeBlock {\n scroll: boolean /* Code block overflows */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Global index for Clipboard.js integration\n */\nlet index = 0\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch code block\n *\n * This function monitors size changes of the viewport, as well as switches of\n * content tabs with embedded code blocks, as both may trigger overflow.\n *\n * @param el - Code block element\n * @param options - Options\n *\n * @returns Code block observable\n */\nexport function watchCodeBlock(\n el: HTMLElement, { viewport$ }: WatchOptions\n): Observable {\n const container$ = of(el)\n .pipe(\n switchMap(child => {\n const container = child.closest(\"[data-tabs]\")\n if (container instanceof HTMLElement) {\n return merge(\n ...getElements(\"input\", container)\n .map(input => fromEvent(input, \"change\"))\n )\n }\n return NEVER\n })\n )\n\n /* Check overflow on resize and tab change */\n return merge(\n viewport$.pipe(distinctUntilKeyChanged(\"size\")),\n container$\n )\n .pipe(\n map(() => {\n const visible = getElementSize(el)\n const content = getElementContentSize(el)\n return {\n scroll: content.width > visible.width\n }\n }),\n distinctUntilKeyChanged(\"scroll\")\n )\n}\n\n/**\n * Mount code block\n *\n * This function ensures that an overflowing code block is focusable through\n * keyboard, so it can be scrolled without a mouse to improve on accessibility.\n *\n * @param el - Code block element\n * @param options - Options\n *\n * @returns Code block component observable\n */\nexport function mountCodeBlock(\n el: HTMLElement, options: MountOptions\n): Observable> {\n const internal$ = new Subject()\n internal$\n .pipe(\n withLatestFrom(watchMedia(\"(hover)\"))\n )\n .subscribe(([{ scroll }, hover]) => {\n if (scroll && hover)\n setFocusable(el)\n else\n resetFocusable(el)\n })\n\n /* Render button for Clipboard.js integration */\n if (ClipboardJS.isSupported()) {\n const parent = el.closest(\"pre\")!\n parent.id = `__code_${index++}`\n parent.insertBefore(\n renderClipboardButton(parent.id),\n el\n )\n }\n\n /* Create and return component */\n return watchCodeBlock(el, options)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set focusable property\n *\n * @param el - Element\n * @param value - Tabindex value\n */\nexport function setFocusable(\n el: HTMLElement, value = 0\n): void {\n el.setAttribute(\"tabindex\", value.toString())\n}\n\n/**\n * Reset focusable property\n *\n * @param el - Element\n */\nexport function resetFocusable(\n el: HTMLElement\n): void {\n el.removeAttribute(\"tabindex\")\n}\n\n/**\n * Set scroll lock\n *\n * @param el - Scrollable element\n * @param value - Vertical offset\n */\nexport function setScrollLock(\n el: HTMLElement, value: number\n): void {\n el.setAttribute(\"data-md-state\", \"lock\")\n el.style.top = `-${value}px`\n}\n\n/**\n * Reset scroll lock\n *\n * @param el - Scrollable element\n */\nexport function resetScrollLock(\n el: HTMLElement\n): void {\n const value = -1 * parseInt(el.style.top, 10)\n el.removeAttribute(\"data-md-state\")\n el.style.top = \"\"\n if (value)\n window.scrollTo(0, value)\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set anchor state\n *\n * @param el - Anchor element\n * @param state - Anchor state\n */\nexport function setAnchorState(\n el: HTMLElement, state: \"blur\"\n): void {\n el.setAttribute(\"data-md-state\", state)\n}\n\n/**\n * Reset anchor state\n *\n * @param el - Anchor element\n */\nexport function resetAnchorState(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set anchor active\n *\n * @param el - Anchor element\n * @param value - Whether the anchor is active\n */\nexport function setAnchorActive(\n el: HTMLElement, value: boolean\n): void {\n el.classList.toggle(\"md-nav__link--active\", value)\n}\n\n/**\n * Reset anchor active\n *\n * @param el - Anchor element\n */\nexport function resetAnchorActive(\n el: HTMLElement\n): void {\n el.classList.remove(\"md-nav__link--active\")\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set dialog message\n *\n * @param el - Dialog element\n * @param value - Dialog message\n */\nexport function setDialogMessage(\n el: HTMLElement, value: string\n): void {\n el.firstElementChild!.innerHTML = value\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set dialog state\n *\n * @param el - Dialog element\n * @param state - Dialog state\n */\nexport function setDialogState(\n el: HTMLElement, state: \"open\"\n): void {\n el.setAttribute(\"data-md-state\", state)\n}\n\n/**\n * Reset dialog state\n *\n * @param el - Dialog element\n */\nexport function resetDialogState(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header state\n *\n * @param el - Header element\n * @param state - Header state\n */\nexport function setHeaderState(\n el: HTMLElement, state: \"shadow\" | \"hidden\"\n): void {\n el.setAttribute(\"data-md-state\", state)\n}\n\n/**\n * Reset header state\n *\n * @param el - Header element\n */\nexport function resetHeaderState(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header title state\n *\n * @param el - Header title element\n * @param state - Header title state\n */\nexport function setHeaderTitleState(\n el: HTMLElement, state: \"active\"\n): void {\n el.setAttribute(\"data-md-state\", state)\n}\n\n/**\n * Reset header title state\n *\n * @param el - Header title element\n */\nexport function resetHeaderTitleState(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { translation } from \"~/_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set search query placeholder\n *\n * @param el - Search query element\n * @param value - Placeholder\n */\nexport function setSearchQueryPlaceholder(\n el: HTMLInputElement, value: string\n): void {\n el.placeholder = value\n}\n\n/**\n * Reset search query placeholder\n *\n * @param el - Search query element\n */\nexport function resetSearchQueryPlaceholder(\n el: HTMLInputElement\n): void {\n el.placeholder = translation(\"search.placeholder\")\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { JSX as JSXInternal } from \"preact\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * HTML attributes\n */\ntype Attributes =\n & JSXInternal.HTMLAttributes\n & JSXInternal.SVGAttributes\n & Record\n\n/**\n * Child element\n */\ntype Child =\n | HTMLElement\n | Text\n | string\n | number\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Append a child node to an element\n *\n * @param el - Element\n * @param child - Child node(s)\n */\nfunction appendChild(el: HTMLElement, child: Child | Child[]): void {\n\n /* Handle primitive types (including raw HTML) */\n if (typeof child === \"string\" || typeof child === \"number\") {\n el.innerHTML += child.toString()\n\n /* Handle nodes */\n } else if (child instanceof Node) {\n el.appendChild(child)\n\n /* Handle nested children */\n } else if (Array.isArray(child)) {\n for (const node of child)\n appendChild(el, node)\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * JSX factory\n *\n * @param tag - HTML tag\n * @param attributes - HTML attributes\n * @param children - Child elements\n *\n * @returns Element\n */\nexport function h(\n tag: string, attributes: Attributes | null, ...children: Child[]\n): HTMLElement {\n const el = document.createElement(tag)\n\n /* Set attributes, if any */\n if (attributes)\n for (const attr of Object.keys(attributes))\n if (typeof attributes[attr] !== \"boolean\")\n el.setAttribute(attr, attributes[attr])\n else if (attributes[attr])\n el.setAttribute(attr, \"\")\n\n /* Append child nodes */\n for (const child of children)\n appendChild(el, child)\n\n /* Return element */\n return el\n}\n\n/* ----------------------------------------------------------------------------\n * Namespace\n * ------------------------------------------------------------------------- */\n\nexport declare namespace h {\n namespace JSX {\n type Element = HTMLElement\n type IntrinsicElements = JSXInternal.IntrinsicElements\n }\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Truncate a string after the given number of characters\n *\n * This is not a very reasonable approach, since the summaries kind of suck.\n * It would be better to create something more intelligent, highlighting the\n * search occurrences and making a better summary out of it, but this note was\n * written three years ago, so who knows if we'll ever fix it.\n *\n * @param value - Value to be truncated\n * @param n - Number of characters\n *\n * @returns Truncated value\n */\nexport function truncate(value: string, n: number): string {\n let i = n\n if (value.length > i) {\n while (value[i] !== \" \" && --i > 0) { /* keep eating */ }\n return `${value.substring(0, i)}...`\n }\n return value\n}\n\n/**\n * Round a number for display with repository facts\n *\n * This is a reverse-engineered version of GitHub's weird rounding algorithm\n * for stars, forks and all other numbers. While all numbers below `1,000` are\n * returned as-is, bigger numbers are converted to fixed numbers:\n *\n * - `1,049` => `1k`\n * - `1,050` => `1.1k`\n * - `1,949` => `1.9k`\n * - `1,950` => `2k`\n *\n * @param value - Original value\n *\n * @returns Rounded value\n */\nexport function round(value: number): string {\n if (value > 999) {\n const digits = +((value - 950) % 1000 > 99)\n return `${((value + 0.000001) / 1000).toFixed(digits)}k`\n } else {\n return value.toString()\n }\n}\n\n/**\n * Simple hash function\n *\n * @see https://bit.ly/2wsVjJ4 - Original source\n *\n * @param value - Value to be hashed\n *\n * @returns Hash as 32bit integer\n */\nexport function hash(value: string): number {\n let h = 0\n for (let i = 0, len = value.length; i < len; i++) {\n h = ((h << 5) - h) + value.charCodeAt(i)\n h |= 0 // Convert to 32bit integer\n }\n return h\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { translation } from \"~/_\"\nimport { round } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set number of search results\n *\n * @param el - Search result metadata element\n * @param value - Number of results\n */\nexport function setSearchResultMeta(\n el: HTMLElement, value: number\n): void {\n switch (value) {\n\n /* No results */\n case 0:\n el.textContent = translation(\"search.result.none\")\n break\n\n /* One result */\n case 1:\n el.textContent = translation(\"search.result.one\")\n break\n\n /* Multiple result */\n default:\n el.textContent = translation(\"search.result.other\", round(value))\n }\n}\n\n/**\n * Reset number of search results\n *\n * @param el - Search result metadata element\n */\nexport function resetSearchResultMeta(\n el: HTMLElement\n): void {\n el.textContent = translation(\"search.result.placeholder\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Add an element to the search result list\n *\n * @param el - Search result list element\n * @param child - Search result element\n */\nexport function addToSearchResultList(\n el: HTMLElement, child: Element\n): void {\n el.appendChild(child)\n}\n\n/**\n * Reset search result list\n *\n * @param el - Search result list element\n */\nexport function resetSearchResultList(\n el: HTMLElement\n): void {\n el.innerHTML = \"\"\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar offset\n *\n * @param el - Sidebar element\n * @param value - Sidebar offset\n */\nexport function setSidebarOffset(\n el: HTMLElement, value: number\n): void {\n el.style.top = `${value}px`\n}\n\n/**\n * Reset sidebar offset\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarOffset(\n el: HTMLElement\n): void {\n el.style.top = \"\"\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar height\n *\n * This function doesn't set the height of the actual sidebar, but of its first\n * child \u2013 the `.md-sidebar__scrollwrap` element in order to mitigiate jittery\n * sidebars when the footer is scrolled into view. At some point we switched\n * from `absolute` / `fixed` positioning to `sticky` positioning, significantly\n * reducing jitter in some browsers (respectively Firefox and Safari) when\n * scrolling from the top. However, top-aligned sticky positioning means that\n * the sidebar snaps to the bottom when the end of the container is reached.\n * This is what leads to the mentioned jitter, as the sidebar's height may be\n * updated too slowly.\n *\n * This behaviour can be mitigiated by setting the height of the sidebar to `0`\n * while preserving the padding, and the height on its first element.\n *\n * @param el - Sidebar element\n * @param value - Sidebar height\n */\nexport function setSidebarHeight(\n el: HTMLElement, value: number\n): void {\n const scrollwrap = el.firstElementChild as HTMLElement\n scrollwrap.style.height = `${value - 2 * scrollwrap.offsetTop}px`\n}\n\n/**\n * Reset sidebar height\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarHeight(\n el: HTMLElement\n): void {\n const scrollwrap = el.firstElementChild as HTMLElement\n scrollwrap.style.height = \"\"\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set repository facts\n *\n * @param el - Repository element\n * @param child - Repository facts element\n */\nexport function setSourceFacts(\n el: HTMLElement, child: Element\n): void {\n el.lastElementChild!.appendChild(child)\n}\n\n/**\n * Set repository state\n *\n * @param el - Repository element\n * @param state - Repository state\n */\nexport function setSourceState(\n el: HTMLElement, state: \"done\"\n): void {\n el.lastElementChild!.setAttribute(\"data-md-state\", state)\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set tabs state\n *\n * @param el - Tabs element\n * @param state - Tabs state\n */\nexport function setTabsState(\n el: HTMLElement, state: \"hidden\"\n): void {\n el.setAttribute(\"data-md-state\", state)\n}\n\n/**\n * Reset tabs state\n *\n * @param el - Tabs element\n */\nexport function resetTabsState(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set back-to-top state\n *\n * @param el - Back-to-top element\n * @param state - Back-to-top state\n */\nexport function setBackToTopState(\n el: HTMLElement, state: \"hidden\"\n): void {\n el.setAttribute(\"data-md-state\", state)\n}\n\n/**\n * Reset back-to-top state\n *\n * @param el - Back-to-top element\n */\nexport function resetBackToTopState(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { translation } from \"~/_\"\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a 'copy-to-clipboard' button\n *\n * @param id - Unique identifier\n *\n * @returns Element\n */\nexport function renderClipboardButton(id: string): HTMLElement {\n return (\n code`}\n >\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { translation } from \"~/_\"\nimport {\n SearchDocument,\n SearchMetadata,\n SearchResult\n} from \"~/integrations/search\"\nimport { h, truncate } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Render flag\n */\nconst enum Flag {\n TEASER = 1, /* Render teaser */\n PARENT = 2 /* Render as parent */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper function\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a search document\n *\n * @param document - Search document\n * @param flag - Render flags\n *\n * @returns Element\n */\nfunction renderSearchDocument(\n document: SearchDocument & SearchMetadata, flag: Flag\n): HTMLElement {\n const parent = flag & Flag.PARENT\n const teaser = flag & Flag.TEASER\n\n /* Render missing query terms */\n const missing = Object.keys(document.terms)\n .filter(key => !document.terms[key])\n .map(key => [{key}, \" \"])\n .flat()\n .slice(0, -1)\n\n /* Render article or section, depending on flags */\n const url = document.location\n return (\n \n \n {parent > 0 &&
}\n

{document.title}

\n {teaser > 0 && document.text.length > 0 &&\n

\n {truncate(document.text, 320)}\n

\n }\n {teaser > 0 && missing.length > 0 &&\n

\n {translation(\"search.result.term.missing\")}: {...missing}\n

\n }\n \n \n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a search result\n *\n * @param result - Search result\n *\n * @returns Element\n */\nexport function renderSearchResult(\n result: SearchResult\n): HTMLElement {\n const threshold = result[0].score\n const docs = [...result]\n\n /* Find and extract parent article */\n const parent = docs.findIndex(doc => !doc.location.includes(\"#\"))\n const [article] = docs.splice(parent, 1)\n\n /* Determine last index above threshold */\n let index = docs.findIndex(doc => doc.score < threshold)\n if (index === -1)\n index = docs.length\n\n /* Partition sections */\n const best = docs.slice(0, index)\n const more = docs.slice(index)\n\n /* Render children */\n const children = [\n renderSearchDocument(article, Flag.PARENT | +(!parent && index === 0)),\n ...best.map(section => renderSearchDocument(section, Flag.TEASER)),\n ...more.length ? [\n
\n \n {more.length > 0 && more.length === 1\n ? translation(\"search.result.more.one\")\n : translation(\"search.result.more.other\", more.length)\n }\n \n {...more.map(section => renderSearchDocument(section, Flag.TEASER))}\n
\n ] : []\n ]\n\n /* Render search result */\n return (\n
  • \n {children}\n
    • \n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SourceFacts } from \"~/components\"\nimport { h, round } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render repository facts\n *\n * @param facts - Repository facts\n *\n * @returns Element\n */\nexport function renderSourceFacts(facts: SourceFacts): HTMLElement {\n return (\n
      \n {Object.entries(facts).map(([key, value]) => (\n
    • \n {typeof value === \"number\" ? round(value) : value}\n
      • \n ))}\n
    \n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a table inside a wrapper to improve scrolling on mobile\n *\n * @param table - Table element\n *\n * @returns Element\n */\nexport function renderTable(table: HTMLElement): HTMLElement {\n return (\n
    \n
    \n {table}\n
    \n
    \n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { configuration, translation } from \"~/_\"\nimport { h } from \"~/utilities\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Version\n */\nexport interface Version {\n version: string /* Version identifier */\n title: string /* Version title */\n aliases: string[] /* Version aliases */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a version\n *\n * @param version - Version\n *\n * @returns Element\n */\nfunction renderVersion(version: Version): HTMLElement {\n const config = configuration()\n\n /* Ensure trailing slash, see https://bit.ly/3rL5u3f */\n const url = new URL(`${version.version}/`, config.base)\n return (\n
  • \n \n {version.title}\n \n
    • \n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a version selector\n *\n * @param versions - Versions\n *\n * @returns Element\n */\nexport function renderVersionSelector(versions: Version[]): HTMLElement {\n const config = configuration()\n\n /* Determine active version */\n const [, current] = config.base.match(/([^/]+)\\/?$/)!\n const active =\n versions.find(({ version, aliases }) => (\n version === current || aliases.includes(current)\n )) || versions[0]\n\n /* Render version selector */\n return (\n
    \n \n {active.title}\n \n
      \n {versions.map(renderVersion)}\n
    \n
    \n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, Subject } from \"rxjs\"\nimport {\n filter,\n finalize,\n map,\n mapTo,\n mergeWith,\n tap\n} from \"rxjs/operators\"\n\nimport { Component } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Details\n */\nexport interface Details {}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n target$: Observable /* Location target observable */\n print$: Observable /* Print mode observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n target$: Observable /* Location target observable */\n print$: Observable /* Print mode observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch details\n *\n * @param el - Details element\n * @param options - Options\n *\n * @returns Details observable\n */\nexport function watchDetails(\n el: HTMLDetailsElement, { target$, print$ }: WatchOptions\n): Observable
    {\n return target$\n .pipe(\n map(target => target.closest(\"details:not([open])\")!),\n filter(details => el === details),\n mergeWith(print$),\n mapTo(el)\n )\n}\n\n/**\n * Mount details\n *\n * This function ensures that `details` tags are opened on anchor jumps and\n * prior to printing, so the whole content of the page is visible.\n *\n * @param el - Details element\n * @param options - Options\n *\n * @returns Details component observable\n */\nexport function mountDetails(\n el: HTMLDetailsElement, options: MountOptions\n): Observable> {\n const internal$ = new Subject
    ()\n internal$.subscribe(() => {\n el.setAttribute(\"open\", \"\")\n el.scrollIntoView()\n })\n\n /* Create and return component */\n return watchDetails(el, options)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n mapTo({ ref: el })\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, of } from \"rxjs\"\n\nimport { createElement, replaceElement } from \"~/browser\"\nimport { renderTable } from \"~/templates\"\n\nimport { Component } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Data table\n */\nexport interface DataTable {}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Sentinel for replacement\n */\nconst sentinel = createElement(\"table\")\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount data table\n *\n * This function wraps a data table in another scrollable container, so it can\n * be smoothly scrolled on smaller screen sizes and won't break the layout.\n *\n * @param el - Data table element\n *\n * @returns Data table component observable\n */\nexport function mountDataTable(\n el: HTMLElement\n): Observable> {\n replaceElement(el, sentinel)\n replaceElement(sentinel, renderTable(el))\n\n /* Create and return component */\n return of({ ref: el })\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, merge } from \"rxjs\"\n\nimport { Viewport, getElements } from \"~/browser\"\n\nimport { Component } from \"../../_\"\nimport { CodeBlock, mountCodeBlock } from \"../code\"\nimport { Details, mountDetails } from \"../details\"\nimport { DataTable, mountDataTable } from \"../table\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Content\n */\nexport type Content =\n | CodeBlock\n | DataTable\n | Details\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n target$: Observable /* Location target observable */\n viewport$: Observable /* Viewport observable */\n print$: Observable /* Print mode observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount content\n *\n * This function mounts all components that are found in the content of the\n * actual article, including code blocks, data tables and details.\n *\n * @param el - Content element\n * @param options - Options\n *\n * @returns Content component observable\n */\nexport function mountContent(\n el: HTMLElement, { target$, viewport$, print$ }: MountOptions\n): Observable> {\n return merge(\n\n /* Code blocks */\n ...getElements(\"pre > code\", el)\n .map(child => mountCodeBlock(child, { viewport$ })),\n\n /* Data tables */\n ...getElements(\"table:not([class])\", el)\n .map(child => mountDataTable(child)),\n\n /* Details */\n ...getElements(\"details\", el)\n .map(child => mountDetails(child, { target$, print$ }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n animationFrameScheduler,\n merge,\n of\n} from \"rxjs\"\nimport {\n delay,\n finalize,\n map,\n observeOn,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport {\n resetDialogState,\n setDialogMessage,\n setDialogState\n} from \"~/actions\"\n\nimport { Component } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Dialog\n */\nexport interface Dialog {\n message: string /* Dialog message */\n open: boolean /* Dialog is visible */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n alert$: Subject /* Alert subject */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n alert$: Subject /* Alert subject */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch dialog\n *\n * @param _el - Dialog element\n * @param options - Options\n *\n * @returns Dialog observable\n */\nexport function watchDialog(\n _el: HTMLElement, { alert$ }: WatchOptions\n): Observable {\n return alert$\n .pipe(\n switchMap(message => merge(\n of(true),\n of(false).pipe(delay(2000))\n )\n .pipe(\n map(open => ({ message, open }))\n )\n )\n )\n}\n\n/**\n * Mount dialog\n *\n * This function reveals the dialog in the right cornerwhen a new alert is\n * emitted through the subject that is passed as part of the options.\n *\n * @param el - Dialog element\n * @param options - Options\n *\n * @returns Dialog component observable\n */\nexport function mountDialog(\n el: HTMLElement, options: MountOptions\n): Observable> {\n const internal$ = new Subject()\n internal$\n .pipe(\n observeOn(animationFrameScheduler)\n )\n .subscribe(({ message, open }) => {\n setDialogMessage(el, message)\n if (open)\n setDialogState(el, \"open\")\n else\n resetDialogState(el)\n })\n\n /* Create and return component */\n return watchDialog(el, options)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n animationFrameScheduler,\n combineLatest,\n defer,\n of\n} from \"rxjs\"\nimport {\n bufferCount,\n combineLatestWith,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n filter,\n map,\n observeOn,\n shareReplay,\n startWith,\n switchMap\n} from \"rxjs/operators\"\n\nimport { feature } from \"~/_\"\nimport { resetHeaderState, setHeaderState } from \"~/actions\"\nimport {\n Viewport,\n watchElementSize,\n watchToggle\n} from \"~/browser\"\n\nimport { Component } from \"../../_\"\nimport { Main } from \"../../main\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Header\n */\nexport interface Header {\n height: number /* Header visible height */\n sticky: boolean /* Header stickyness */\n hidden: boolean /* User scrolled past threshold */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n main$: Observable
    /* Main area observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Compute whether the header is hidden\n *\n * If the user scrolls past a certain threshold, the header can be hidden when\n * scrolling down, and shown when scrolling up.\n *\n * @param options - Options\n *\n * @returns Toggle observable\n */\nfunction isHidden({ viewport$ }: WatchOptions): Observable {\n if (!feature(\"header.autohide\"))\n return of(false)\n\n /* Compute direction and turning point */\n const direction$ = viewport$\n .pipe(\n map(({ offset: { y } }) => y),\n bufferCount(2, 1),\n map(([a, b]) => [a < b, b] as const),\n distinctUntilKeyChanged(0)\n )\n\n /* Compute whether header should be hidden */\n const hidden$ = combineLatest([viewport$, direction$])\n .pipe(\n filter(([{ offset }, [, y]]) => Math.abs(y - offset.y) > 100),\n map(([, [direction]]) => direction),\n distinctUntilChanged()\n )\n\n /* Compute threshold for hiding */\n const search$ = watchToggle(\"search\")\n return combineLatest([viewport$, search$])\n .pipe(\n map(([{ offset }, search]) => offset.y > 400 && !search),\n distinctUntilChanged(),\n switchMap(active => active ? hidden$ : of(false)),\n startWith(false)\n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch header\n *\n * @param el - Header element\n * @param options - Options\n *\n * @returns Header observable\n */\nexport function watchHeader(\n el: HTMLElement, options: WatchOptions\n): Observable
    {\n return defer(() => {\n const styles = getComputedStyle(el)\n return of(\n styles.position === \"sticky\" ||\n styles.position === \"-webkit-sticky\"\n )\n })\n .pipe(\n combineLatestWith(watchElementSize(el), isHidden(options)),\n map(([sticky, { height }, hidden]) => ({\n height: sticky ? height : 0,\n sticky,\n hidden\n })),\n distinctUntilChanged((a, b) => (\n a.sticky === b.sticky &&\n a.height === b.height &&\n a.hidden === b.hidden\n )),\n shareReplay(1)\n )\n}\n\n/**\n * Mount header\n *\n * This function manages the different states of the header, i.e. whether it's\n * hidden or rendered with a shadow. This depends heavily on the main area.\n *\n * @param el - Header element\n * @param options - Options\n *\n * @returns Header component observable\n */\nexport function mountHeader(\n el: HTMLElement, { header$, main$ }: MountOptions\n): Observable> {\n const internal$ = new Subject
    ()\n internal$\n .pipe(\n distinctUntilKeyChanged(\"active\"),\n combineLatestWith(header$),\n observeOn(animationFrameScheduler)\n )\n .subscribe(([{ active }, { hidden }]) => {\n if (active)\n setHeaderState(el, hidden ? \"hidden\" : \"shadow\")\n else\n resetHeaderState(el)\n })\n\n /* Connect to long-living subject and return component */\n main$.subscribe(main => internal$.next(main))\n return header$\n .pipe(\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n NEVER,\n Observable,\n Subject,\n animationFrameScheduler\n} from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n finalize,\n map,\n observeOn,\n tap\n} from \"rxjs/operators\"\n\nimport {\n resetHeaderTitleState,\n setHeaderTitleState\n} from \"~/actions\"\nimport {\n Viewport,\n getElement,\n getElementSize,\n watchViewportAt\n} from \"~/browser\"\n\nimport { Component } from \"../../_\"\nimport { Header } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Header\n */\nexport interface HeaderTitle {\n active: boolean /* User scrolled past first headline */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch header title\n *\n * @param el - Heading element\n * @param options - Options\n *\n * @returns Header title observable\n */\nexport function watchHeaderTitle(\n el: HTMLHeadingElement, { viewport$, header$ }: WatchOptions\n): Observable {\n return watchViewportAt(el, { header$, viewport$ })\n .pipe(\n map(({ offset: { y } }) => {\n const { height } = getElementSize(el)\n return {\n active: y >= height\n }\n }),\n distinctUntilKeyChanged(\"active\")\n )\n}\n\n/**\n * Mount header title\n *\n * This function swaps the header title from the site title to the title of the\n * current page when the user scrolls past the first headline.\n *\n * @param el - Header title element\n * @param options - Options\n *\n * @returns Header title component observable\n */\nexport function mountHeaderTitle(\n el: HTMLElement, options: MountOptions\n): Observable> {\n const internal$ = new Subject()\n internal$\n .pipe(\n observeOn(animationFrameScheduler)\n )\n .subscribe(({ active }) => {\n if (active)\n setHeaderTitleState(el, \"active\")\n else\n resetHeaderTitleState(el)\n })\n\n /* Obtain headline, if any */\n const headline = getElement(\"article h1\")\n if (typeof headline === \"undefined\")\n return NEVER\n\n /* Create and return component */\n return watchHeaderTitle(headline, options)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n combineLatest\n} from \"rxjs\"\nimport {\n distinctUntilChanged,\n distinctUntilKeyChanged,\n map,\n switchMap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchElementSize } from \"~/browser\"\n\nimport { Header } from \"../header\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Main area\n */\nexport interface Main {\n offset: number /* Main area top offset */\n height: number /* Main area visible height */\n active: boolean /* User scrolled past header */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch main area\n *\n * This function returns an observable that computes the visual parameters of\n * the main area which depends on the viewport vertical offset and height, as\n * well as the height of the header element, if the header is fixed.\n *\n * @param el - Main area element\n * @param options - Options\n *\n * @returns Main area observable\n */\nexport function watchMain(\n el: HTMLElement, { viewport$, header$ }: WatchOptions\n): Observable
    {\n\n /* Compute necessary adjustment for header */\n const adjust$ = header$\n .pipe(\n map(({ height }) => height),\n distinctUntilChanged()\n )\n\n /* Compute the main area's top and bottom borders */\n const border$ = adjust$\n .pipe(\n switchMap(() => watchElementSize(el)\n .pipe(\n map(({ height }) => ({\n top: el.offsetTop,\n bottom: el.offsetTop + height\n })),\n distinctUntilKeyChanged(\"bottom\")\n )\n )\n )\n\n /* Compute the main area's offset, visible height and if we scrolled past */\n return combineLatest([adjust$, border$, viewport$])\n .pipe(\n map(([header, { top, bottom }, { offset: { y }, size: { height } }]) => {\n height = Math.max(0, height\n - Math.max(0, top - y, header)\n - Math.max(0, height + y - bottom)\n )\n return {\n offset: top - header,\n height,\n active: top - header <= y\n }\n }),\n distinctUntilChanged((a, b) => (\n a.offset === b.offset &&\n a.height === b.height &&\n a.active === b.active\n ))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n fromEvent,\n of\n} from \"rxjs\"\nimport {\n finalize,\n map,\n mapTo,\n mergeMap,\n shareReplay,\n startWith,\n tap\n} from \"rxjs/operators\"\n\nimport { getElements } from \"~/browser\"\n\nimport { Component } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Palette colors\n */\nexport interface PaletteColor {\n scheme?: string /* Color scheme */\n primary?: string /* Primary color */\n accent?: string /* Accent color */\n}\n\n/**\n * Palette\n */\nexport interface Palette {\n index: number /* Palette index */\n color: PaletteColor /* Palette colors */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch color palette\n *\n * @param inputs - Color palette element\n *\n * @returns Color palette observable\n */\nexport function watchPalette(\n inputs: HTMLInputElement[]\n): Observable {\n const data = localStorage.getItem(__prefix(\"__palette\"))!\n const current = JSON.parse(data) || {\n index: inputs.findIndex(input => (\n matchMedia(input.getAttribute(\"data-md-color-media\")!).matches\n ))\n }\n\n /* Emit changes in color palette */\n const palette$ = of(...inputs)\n .pipe(\n mergeMap(input => fromEvent(input, \"change\")\n .pipe(\n mapTo(input)\n )\n ),\n startWith(inputs[Math.max(0, current.index)]),\n map(input => ({\n index: inputs.indexOf(input),\n color: {\n scheme: input.getAttribute(\"data-md-color-scheme\"),\n primary: input.getAttribute(\"data-md-color-primary\"),\n accent: input.getAttribute(\"data-md-color-accent\")\n }\n } as Palette)),\n shareReplay(1)\n )\n\n /* Persist preference in local storage */\n palette$.subscribe(palette => {\n localStorage.setItem(__prefix(\"__palette\"), JSON.stringify(palette))\n })\n\n /* Return palette */\n return palette$\n}\n\n/**\n * Mount color palette\n *\n * @param el - Color palette element\n *\n * @returns Color palette component observable\n */\nexport function mountPalette(\n el: HTMLElement\n): Observable> {\n const internal$ = new Subject()\n\n /* Set color palette */\n internal$.subscribe(palette => {\n for (const [key, value] of Object.entries(palette.color))\n if (typeof value === \"string\")\n document.body.setAttribute(`data-md-color-${key}`, value)\n\n /* Toggle visibility */\n for (let index = 0; index < inputs.length; index++) {\n const label = inputs[index].nextElementSibling\n if (label instanceof HTMLElement)\n label.hidden = palette.index !== index\n }\n })\n\n /* Create and return component */\n const inputs = getElements(\"input\", el)\n return watchPalette(inputs)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport ClipboardJS from \"clipboard\"\nimport { Observable, Subject } from \"rxjs\"\n\nimport { translation } from \"~/_\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n alert$: Subject /* Alert subject */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up Clipboard.js integration\n *\n * @param options - Options\n */\nexport function setupClipboardJS(\n { alert$ }: SetupOptions\n): void {\n if (ClipboardJS.isSupported()) {\n new Observable(subscriber => {\n new ClipboardJS(\"[data-clipboard-target], [data-clipboard-text]\")\n .on(\"success\", ev => subscriber.next(ev))\n })\n .subscribe(() => alert$.next(translation(\"clipboard.copied\")))\n }\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n EMPTY,\n NEVER,\n Observable,\n Subject,\n fromEvent,\n merge,\n of\n} from \"rxjs\"\nimport {\n bufferCount,\n catchError,\n concatMap,\n debounceTime,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n filter,\n map,\n sample,\n share,\n skip,\n skipUntil,\n switchMap\n} from \"rxjs/operators\"\n\nimport { configuration } from \"~/_\"\nimport {\n Viewport,\n ViewportOffset,\n createElement,\n getElement,\n getElements,\n replaceElement,\n request,\n requestXML,\n setLocation,\n setLocationHash,\n setViewportOffset\n} from \"~/browser\"\nimport { getComponentElement } from \"~/components\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * History state\n */\nexport interface HistoryState {\n url: URL /* State URL */\n offset?: ViewportOffset /* State viewport offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n document$: Subject /* Document subject */\n location$: Subject /* Location subject */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Preprocess a list of URLs\n *\n * This function replaces the `site_url` in the sitemap with the actual base\n * URL, to allow instant loading to work in occasions like Netlify previews.\n *\n * @param urls - URLs\n *\n * @returns Processed URLs\n */\nfunction preprocess(urls: string[]): string[] {\n if (urls.length < 2)\n return urls\n\n /* Take the first two URLs and remove everything after the last slash */\n const [root, next] = urls\n .sort((a, b) => a.length - b.length)\n .map(url => url.replace(/[^/]+$/, \"\"))\n\n /* Compute common prefix */\n let index = 0\n if (root === next)\n index = root.length\n else\n while (root.charCodeAt(index) === next.charCodeAt(index))\n index++\n\n /* Replace common prefix (i.e. base) with effective base */\n const config = configuration()\n return urls.map(url => (\n url.replace(root.slice(0, index), `${config.base}/`)\n ))\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up instant loading\n *\n * When fetching, theoretically, we could use `responseType: \"document\"`, but\n * since all MkDocs links are relative, we need to make sure that the current\n * location matches the document we just loaded. Otherwise any relative links\n * in the document could use the old location.\n *\n * This is the reason why we need to synchronize history events and the process\n * of fetching the document for navigation changes (except `popstate` events):\n *\n * 1. Fetch document via `XMLHTTPRequest`\n * 2. Set new location via `history.pushState`\n * 3. Parse and emit fetched document\n *\n * For `popstate` events, we must not use `history.pushState`, or the forward\n * history will be irreversibly overwritten. In case the request fails, the\n * location change is dispatched regularly.\n *\n * @param options - Options\n */\nexport function setupInstantLoading(\n { document$, location$, viewport$ }: SetupOptions\n): void {\n const config = configuration()\n if (location.protocol === \"file:\")\n return\n\n /* Disable automatic scroll restoration */\n if (\"scrollRestoration\" in history) {\n history.scrollRestoration = \"manual\"\n\n /* Hack: ensure that reloads restore viewport offset */\n fromEvent(window, \"beforeunload\")\n .subscribe(() => {\n history.scrollRestoration = \"auto\"\n })\n }\n\n /* Hack: ensure absolute favicon link to omit 404s when switching */\n const favicon = getElement(\"link[rel=icon]\")\n if (typeof favicon !== \"undefined\")\n favicon.href = favicon.href\n\n /* Intercept internal navigation */\n const push$ = requestXML(`${config.base}/sitemap.xml`)\n .pipe(\n map(sitemap => preprocess(getElements(\"loc\", sitemap)\n .map(node => node.textContent!)\n )),\n switchMap(urls => fromEvent(document.body, \"click\")\n .pipe(\n filter(ev => !ev.metaKey && !ev.ctrlKey),\n switchMap(ev => {\n\n /* Handle HTML and SVG elements */\n if (ev.target instanceof Element) {\n const el = ev.target.closest(\"a\")\n if (el && !el.target && urls.includes(el.href)) {\n ev.preventDefault()\n return of({\n url: new URL(el.href)\n })\n }\n }\n return NEVER\n })\n )\n ),\n share()\n )\n\n /* Intercept history back and forward */\n const pop$ = fromEvent(window, \"popstate\")\n .pipe(\n filter(ev => ev.state !== null),\n map(ev => ({\n url: new URL(location.href),\n offset: ev.state\n })),\n share()\n )\n\n /* Emit location change */\n merge(push$, pop$)\n .pipe(\n distinctUntilChanged((a, b) => a.url.href === b.url.href),\n map(({ url }) => url)\n )\n .subscribe(location$)\n\n /* Fetch document via `XMLHTTPRequest` */\n const response$ = location$\n .pipe(\n distinctUntilKeyChanged(\"pathname\"),\n switchMap(url => request(url.href)\n .pipe(\n catchError(() => {\n setLocation(url)\n return NEVER\n })\n )\n ),\n share()\n )\n\n /* Set new location via `history.pushState` */\n push$\n .pipe(\n sample(response$)\n )\n .subscribe(({ url }) => {\n history.pushState({}, \"\", `${url}`)\n })\n\n /* Parse and emit fetched document */\n const dom = new DOMParser()\n response$\n .pipe(\n switchMap(res => res.text()),\n map(res => dom.parseFromString(res, \"text/html\"))\n )\n .subscribe(document$)\n\n /* Emit history state change */\n merge(push$, pop$)\n .pipe(\n sample(document$)\n )\n .subscribe(({ url, offset }) => {\n if (url.hash && !offset)\n setLocationHash(url.hash)\n else\n setViewportOffset(offset || { y: 0 })\n })\n\n /* Replace meta tags and components */\n document$\n .pipe(\n skip(1)\n )\n .subscribe(replacement => {\n for (const selector of [\n\n /* Meta tags */\n \"title\",\n \"link[rel=canonical]\",\n \"meta[name=author]\",\n \"meta[name=description]\",\n\n /* Components */\n \"[data-md-component=announce]\",\n \"[data-md-component=container]\",\n \"[data-md-component=header-topic]\",\n \"[data-md-component=logo], .md-logo\", // compat\n \"[data-md-component=skip]\"\n ]) {\n const source = getElement(selector)\n const target = getElement(selector, replacement)\n if (\n typeof source !== \"undefined\" &&\n typeof target !== \"undefined\"\n ) {\n replaceElement(source, target)\n }\n }\n })\n\n /* Re-evaluate scripts */\n document$\n .pipe(\n skip(1),\n map(() => getComponentElement(\"container\")),\n switchMap(el => of(...getElements(\"script\", el))),\n concatMap(el => {\n const script = createElement(\"script\")\n if (el.src) {\n for (const name of el.getAttributeNames())\n script.setAttribute(name, el.getAttribute(name)!)\n replaceElement(el, script)\n\n /* Complete when script is loaded */\n return new Observable(observer => {\n script.onload = () => observer.complete()\n })\n\n /* Complete immediately */\n } else {\n script.textContent = el.textContent\n replaceElement(el, script)\n return EMPTY\n }\n })\n )\n .subscribe()\n\n /* Debounce update of viewport offset */\n viewport$\n .pipe(\n skipUntil(push$),\n debounceTime(250),\n distinctUntilKeyChanged(\"offset\")\n )\n .subscribe(({ offset }) => {\n history.replaceState(offset, \"\")\n })\n\n /* Set viewport offset from history */\n merge(push$, pop$)\n .pipe(\n bufferCount(2, 1),\n filter(([a, b]) => a.url.pathname === b.url.pathname),\n map(([, state]) => state)\n )\n .subscribe(({ offset }) => {\n setViewportOffset(offset || { y: 0 })\n })\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport interface SearchDocument extends SearchIndexDocument {\n parent?: SearchIndexDocument /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @returns Search document map\n */\nexport function setupSearchDocumentMap(\n docs: SearchIndexDocument[]\n): SearchDocumentMap {\n const documents = new Map()\n const parents = new Set()\n for (const doc of docs) {\n const [path, hash] = doc.location.split(\"#\")\n\n /* Extract location and title */\n const location = doc.location\n const title = doc.title\n\n /* Escape and cleanup text */\n const text = escapeHTML(doc.text)\n .replace(/\\s+(?=[,.:;!?])/g, \"\")\n .replace(/\\s+/g, \" \")\n\n /* Handle section */\n if (hash) {\n const parent = documents.get(path)!\n\n /* Ignore first section, override article */\n if (!parents.has(parent)) {\n parent.title = doc.title\n parent.text = text\n\n /* Remember that we processed the article */\n parents.add(parent)\n\n /* Add subsequent section */\n } else {\n documents.set(location, {\n location,\n title,\n text,\n parent\n })\n }\n\n /* Add article */\n } else {\n documents.set(location, {\n location,\n title,\n text\n })\n }\n }\n return documents\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search transformation function\n *\n * @param value - Query value\n *\n * @returns Transformed query value\n */\nexport type SearchTransformFn = (value: string) => string\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Default transformation function\n *\n * 1. Search for terms in quotation marks and prepend a `+` modifier to denote\n * that the resulting document must contain all terms, converting the query\n * to an `AND` query (as opposed to the default `OR` behavior). While users\n * may expect terms enclosed in quotation marks to map to span queries, i.e.\n * for which order is important, Lunr.js doesn't support them, so the best\n * we can do is to convert the terms to an `AND` query.\n *\n * 2. Replace control characters which are not located at the beginning of the\n * query or preceded by white space, or are not followed by a non-whitespace\n * character or are at the end of the query string. Furthermore, filter\n * unmatched quotation marks.\n *\n * 3. Trim excess whitespace from left and right.\n *\n * @param query - Query value\n *\n * @returns Transformed query value\n */\nexport function defaultTransform(query: string): string {\n return query\n .split(/\"([^\"]+)\"/g) /* => 1 */\n .map((terms, index) => index & 1\n ? terms.replace(/^\\b|^(?![^\\x00-\\x7F]|$)|\\s+/g, \" +\")\n : terms\n )\n .join(\"\")\n .replace(/\"|(?:^|\\s+)[*+\\-:^~]+(?=\\s+|$)/g, \"\") /* => 2 */\n .trim() /* => 3 */\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchResult } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search message type\n */\nexport const enum SearchMessageType {\n SETUP, /* Search index setup */\n READY, /* Search index ready */\n QUERY, /* Search query */\n RESULT /* Search results */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message containing the data necessary to setup the search index\n */\nexport interface SearchSetupMessage {\n type: SearchMessageType.SETUP /* Message type */\n data: SearchIndex /* Message data */\n}\n\n/**\n * A message indicating the search index is ready\n */\nexport interface SearchReadyMessage {\n type: SearchMessageType.READY /* Message type */\n}\n\n/**\n * A message containing a search query\n */\nexport interface SearchQueryMessage {\n type: SearchMessageType.QUERY /* Message type */\n data: string /* Message data */\n}\n\n/**\n * A message containing results for a search query\n */\nexport interface SearchResultMessage {\n type: SearchMessageType.RESULT /* Message type */\n data: SearchResult[] /* Message data */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message exchanged with the search worker\n */\nexport type SearchMessage =\n | SearchSetupMessage\n | SearchReadyMessage\n | SearchQueryMessage\n | SearchResultMessage\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Type guard for search setup messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchSetupMessage(\n message: SearchMessage\n): message is SearchSetupMessage {\n return message.type === SearchMessageType.SETUP\n}\n\n/**\n * Type guard for search ready messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchReadyMessage(\n message: SearchMessage\n): message is SearchReadyMessage {\n return message.type === SearchMessageType.READY\n}\n\n/**\n * Type guard for search query messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchQueryMessage(\n message: SearchMessage\n): message is SearchQueryMessage {\n return message.type === SearchMessageType.QUERY\n}\n\n/**\n * Type guard for search result messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchResultMessage(\n message: SearchMessage\n): message is SearchResultMessage {\n return message.type === SearchMessageType.RESULT\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ObservableInput, Subject, from } from \"rxjs\"\nimport { map, share } from \"rxjs/operators\"\n\nimport { configuration, translation } from \"~/_\"\nimport { WorkerHandler, watchWorker } from \"~/browser\"\n\nimport { SearchIndex, SearchIndexPipeline } from \"../../_\"\nimport {\n SearchMessage,\n SearchMessageType,\n SearchSetupMessage,\n isSearchResultMessage\n} from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search worker\n */\nexport type SearchWorker = WorkerHandler\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search index\n *\n * @param data - Search index\n *\n * @returns Search index\n */\nfunction setupSearchIndex(\n { config, docs, index }: SearchIndex\n): SearchIndex {\n\n /* Override default language with value from translation */\n if (config.lang.length === 1 && config.lang[0] === \"en\")\n config.lang = [\n translation(\"search.config.lang\")\n ]\n\n /* Override default separator with value from translation */\n if (config.separator === \"[\\\\s\\\\-]+\")\n config.separator = translation(\"search.config.separator\")\n\n /* Set pipeline from translation */\n const pipeline = translation(\"search.config.pipeline\")\n .split(/\\s*,\\s*/)\n .filter(Boolean) as SearchIndexPipeline\n\n /* Return search index after defaulting */\n return { config, docs, index, pipeline }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search worker\n *\n * This function creates a web worker to set up and query the search index,\n * which is done using Lunr.js. The index must be passed as an observable to\n * enable hacks like _localsearch_ via search index embedding as JSON.\n *\n * @param url - Worker URL\n * @param index - Search index observable input\n *\n * @returns Search worker\n */\nexport function setupSearchWorker(\n url: string, index: ObservableInput\n): SearchWorker {\n const config = configuration()\n const worker = new Worker(url)\n\n /* Create communication channels and resolve relative links */\n const tx$ = new Subject()\n const rx$ = watchWorker(worker, { tx$ })\n .pipe(\n map(message => {\n if (isSearchResultMessage(message)) {\n for (const result of message.data)\n for (const document of result)\n document.location = `${config.base}/${document.location}`\n }\n return message\n }),\n share()\n )\n\n /* Set up search index */\n from(index)\n .pipe(\n map(data => ({\n type: SearchMessageType.SETUP,\n data: setupSearchIndex(data)\n }))\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Return search worker */\n return { tx$, rx$ }\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { configuration } from \"~/_\"\nimport { getElementOrThrow, requestJSON } from \"~/browser\"\nimport { Version, renderVersionSelector } from \"~/templates\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up version selector\n */\nexport function setupVersionSelector(): void {\n const config = configuration()\n requestJSON(new URL(\"versions.json\", config.base))\n .subscribe(versions => {\n const topic = getElementOrThrow(\".md-header__topic\")\n topic.appendChild(renderVersionSelector(versions))\n })\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n combineLatest,\n fromEvent,\n merge\n} from \"rxjs\"\nimport {\n delay,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n finalize,\n map,\n takeLast,\n takeUntil,\n tap\n} from \"rxjs/operators\"\n\nimport {\n resetSearchQueryPlaceholder,\n setSearchQueryPlaceholder\n} from \"~/actions\"\nimport {\n setElementFocus,\n setToggle,\n watchElementFocus\n} from \"~/browser\"\nimport {\n SearchMessageType,\n SearchQueryMessage,\n SearchWorker,\n defaultTransform\n} from \"~/integrations\"\n\nimport { Component } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query\n */\nexport interface SearchQuery {\n value: string /* Query value */\n focus: boolean /* Query focus */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search query\n *\n * Note that the focus event which triggers re-reading the current query value\n * is delayed by `1ms` so the input's empty state is allowed to propagate.\n *\n * @param el - Search query element\n *\n * @returns Search query observable\n */\nexport function watchSearchQuery(\n el: HTMLInputElement\n): Observable {\n const fn = __search?.transform || defaultTransform\n\n /* Intercept focus and input events */\n const focus$ = watchElementFocus(el)\n const value$ = merge(\n fromEvent(el, \"keyup\"),\n fromEvent(el, \"focus\").pipe(delay(1))\n )\n .pipe(\n map(() => fn(el.value)),\n distinctUntilChanged()\n )\n\n /* Combine into single observable */\n return combineLatest([value$, focus$])\n .pipe(\n map(([value, focus]) => ({ value, focus }))\n )\n}\n\n/**\n * Mount search query\n *\n * @param el - Search query element\n * @param worker - Search worker\n *\n * @returns Search query component observable\n */\nexport function mountSearchQuery(\n el: HTMLInputElement, { tx$ }: SearchWorker\n): Observable> {\n const internal$ = new Subject()\n\n /* Handle value changes */\n internal$\n .pipe(\n distinctUntilKeyChanged(\"value\"),\n map(({ value }): SearchQueryMessage => ({\n type: SearchMessageType.QUERY,\n data: value\n }))\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Handle focus changes */\n internal$\n .pipe(\n distinctUntilKeyChanged(\"focus\")\n )\n .subscribe(({ focus }) => {\n if (focus) {\n setToggle(\"search\", focus)\n setSearchQueryPlaceholder(el, \"\")\n } else {\n resetSearchQueryPlaceholder(el)\n }\n })\n\n /* Handle reset */\n fromEvent(el.form!, \"reset\")\n .pipe(\n takeUntil(internal$.pipe(takeLast(1)))\n )\n .subscribe(() => setElementFocus(el))\n\n /* Create and return component */\n return watchSearchQuery(el)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n animationFrameScheduler,\n merge,\n of\n} from \"rxjs\"\nimport {\n bufferCount,\n filter,\n finalize,\n map,\n observeOn,\n startWith,\n switchMap,\n take,\n tap,\n withLatestFrom,\n zipWith\n} from \"rxjs/operators\"\n\nimport {\n addToSearchResultList,\n resetSearchResultList,\n resetSearchResultMeta,\n setSearchResultMeta\n} from \"~/actions\"\nimport {\n getElementOrThrow,\n watchElementThreshold\n} from \"~/browser\"\nimport {\n SearchResult as SearchResultData,\n SearchWorker,\n isSearchReadyMessage,\n isSearchResultMessage\n} from \"~/integrations\"\nimport { renderSearchResult } from \"~/templates\"\n\nimport { Component } from \"../../_\"\nimport { SearchQuery } from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search result\n */\nexport interface SearchResult {\n data: SearchResultData[] /* Search result data */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n query$: Observable /* Search query observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search result list\n *\n * This function performs a lazy rendering of the search results, depending on\n * the vertical offset of the search result container.\n *\n * @param el - Search result list element\n * @param worker - Search worker\n * @param options - Options\n *\n * @returns Search result list component observable\n */\nexport function mountSearchResult(\n el: HTMLElement, { rx$ }: SearchWorker, { query$ }: MountOptions\n): Observable> {\n const internal$ = new Subject()\n const boundary$ = watchElementThreshold(el.parentElement!)\n .pipe(\n filter(Boolean)\n )\n\n /* Retrieve nested components */\n const meta = getElementOrThrow(\":scope > :first-child\", el)\n const list = getElementOrThrow(\":scope > :last-child\", el)\n\n /* Update search result metadata when ready */\n rx$\n .pipe(\n filter(isSearchReadyMessage),\n take(1)\n )\n .subscribe(() => {\n resetSearchResultMeta(meta)\n })\n\n /* Update search result metadata */\n internal$\n .pipe(\n observeOn(animationFrameScheduler),\n withLatestFrom(query$)\n )\n .subscribe(([{ data }, { value }]) => {\n if (value)\n setSearchResultMeta(meta, data.length)\n else\n resetSearchResultMeta(meta)\n })\n\n /* Update search result list */\n internal$\n .pipe(\n observeOn(animationFrameScheduler),\n tap(() => resetSearchResultList(list)),\n switchMap(({ data }) => merge(\n of(...data.slice(0, 10)),\n of(...data.slice(10))\n .pipe(\n bufferCount(4),\n zipWith(boundary$),\n switchMap(([chunk]) => of(...chunk))\n )\n ))\n )\n .subscribe(result => {\n addToSearchResultList(list, renderSearchResult(result))\n })\n\n /* Filter search result list */\n const result$ = rx$\n .pipe(\n filter(isSearchResultMessage),\n map(({ data }) => ({ data })),\n startWith({ data: [] })\n )\n\n /* Create and return component */\n return result$\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, ObservableInput, merge } from \"rxjs\"\nimport { filter, sample, take } from \"rxjs/operators\"\n\nimport { configuration } from \"~/_\"\nimport {\n Keyboard,\n getActiveElement,\n getElements,\n setElementFocus,\n setElementSelection,\n setToggle\n} from \"~/browser\"\nimport {\n SearchIndex,\n isSearchQueryMessage,\n isSearchReadyMessage,\n setupSearchWorker\n} from \"~/integrations\"\n\nimport { Component, getComponentElement } from \"../../_\"\nimport { SearchQuery, mountSearchQuery } from \"../query\"\nimport { SearchResult, mountSearchResult } from \"../result\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search\n */\nexport type Search =\n | SearchQuery\n | SearchResult\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n index$: ObservableInput /* Search index observable */\n keyboard$: Observable /* Keyboard observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search\n *\n * This function sets up the search functionality, including the underlying\n * web worker and all keyboard bindings.\n *\n * @param el - Search element\n * @param options - Options\n *\n * @returns Search component observable\n */\nexport function mountSearch(\n el: HTMLElement, { index$, keyboard$ }: MountOptions\n): Observable> {\n const config = configuration()\n const worker = setupSearchWorker(config.search, index$)\n\n /* Retrieve nested components */\n const query = getComponentElement(\"search-query\", el)\n const result = getComponentElement(\"search-result\", el)\n\n /* Re-emit query when search is ready */\n const { tx$, rx$ } = worker\n tx$\n .pipe(\n filter(isSearchQueryMessage),\n sample(rx$.pipe(filter(isSearchReadyMessage))),\n take(1)\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Set up search keyboard handlers */\n keyboard$\n .pipe(\n filter(({ mode }) => mode === \"search\")\n )\n .subscribe(key => {\n const active = getActiveElement()\n switch (key.type) {\n\n /* Enter: prevent form submission */\n case \"Enter\":\n if (active === query)\n key.claim()\n break\n\n /* Escape or Tab: close search */\n case \"Escape\":\n case \"Tab\":\n setToggle(\"search\", false)\n setElementFocus(query, false)\n break\n\n /* Vertical arrows: select previous or next search result */\n case \"ArrowUp\":\n case \"ArrowDown\":\n if (typeof active === \"undefined\") {\n setElementFocus(query)\n } else {\n const els = [query, ...getElements(\n \":not(details) > [href], summary, details[open] [href]\",\n result\n )]\n const i = Math.max(0, (\n Math.max(0, els.indexOf(active)) + els.length + (\n key.type === \"ArrowUp\" ? -1 : +1\n )\n ) % els.length)\n setElementFocus(els[i])\n }\n\n /* Prevent scrolling of page */\n key.claim()\n break\n\n /* All other keys: hand to search query */\n default:\n if (query !== getActiveElement())\n setElementFocus(query)\n }\n })\n\n /* Set up global keyboard handlers */\n keyboard$\n .pipe(\n filter(({ mode }) => mode === \"global\"),\n )\n .subscribe(key => {\n switch (key.type) {\n\n /* Open search and select query */\n case \"f\":\n case \"s\":\n case \"/\":\n setElementFocus(query)\n setElementSelection(query)\n key.claim()\n break\n }\n })\n\n /* Create and return component */\n const query$ = mountSearchQuery(query, worker)\n return merge(\n query$,\n mountSearchResult(result, worker, { query$ })\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n animationFrameScheduler,\n combineLatest\n} from \"rxjs\"\nimport {\n distinctUntilChanged,\n finalize,\n map,\n observeOn,\n tap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n resetSidebarHeight,\n resetSidebarOffset,\n setSidebarHeight,\n setSidebarOffset\n} from \"~/actions\"\nimport { Viewport } from \"~/browser\"\n\nimport { Component } from \"../_\"\nimport { Header } from \"../header\"\nimport { Main } from \"../main\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Sidebar\n */\nexport interface Sidebar {\n height: number /* Sidebar height */\n locked: boolean /* User scrolled past header */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n main$: Observable
    /* Main area observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n main$: Observable
    /* Main area observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch sidebar\n *\n * This function returns an observable that computes the visual parameters of\n * the sidebar which depends on the vertical viewport offset, as well as the\n * height of the main area. When the page is scrolled beyond the header, the\n * sidebar is locked and fills the remaining space.\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @returns Sidebar observable\n */\nexport function watchSidebar(\n el: HTMLElement, { viewport$, main$ }: WatchOptions\n): Observable {\n const adjust =\n el.parentElement!.offsetTop -\n el.parentElement!.parentElement!.offsetTop\n\n /* Compute the sidebar's available height and if it should be locked */\n return combineLatest([main$, viewport$])\n .pipe(\n map(([{ offset, height }, { offset: { y } }]) => {\n height = height\n + Math.min(adjust, Math.max(0, y - offset))\n - adjust\n return {\n height,\n locked: y >= offset + adjust\n }\n }),\n distinctUntilChanged((a, b) => (\n a.height === b.height &&\n a.locked === b.locked\n ))\n )\n}\n\n/**\n * Mount sidebar\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @returns Sidebar component observable\n */\nexport function mountSidebar(\n el: HTMLElement, { header$, ...options }: MountOptions\n): Observable> {\n const internal$ = new Subject()\n internal$\n .pipe(\n observeOn(animationFrameScheduler),\n withLatestFrom(header$)\n )\n .subscribe({\n\n /* Update height and offset */\n next([{ height }, { height: offset }]) {\n setSidebarHeight(el, height)\n setSidebarOffset(el, offset)\n },\n\n /* Reset on complete */\n complete() {\n resetSidebarOffset(el)\n resetSidebarHeight(el)\n }\n })\n\n /* Create and return component */\n return watchSidebar(el, options)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Repo, User } from \"github-types\"\nimport { Observable, zip } from \"rxjs\"\nimport { defaultIfEmpty, map } from \"rxjs/operators\"\n\nimport { requestJSON } from \"~/browser\"\n\nimport { SourceFacts } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * GitHub release (partial)\n */\ninterface Release {\n tag_name: string /* Tag name */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitHub repository facts\n *\n * @param user - GitHub user\n * @param repo - GitHub repository\n *\n * @returns Repository facts observable\n */\nexport function fetchSourceFactsFromGitHub(\n user: string, repo?: string\n): Observable {\n if (typeof repo !== \"undefined\") {\n const url = `https://api.github.com/repos/${user}/${repo}`\n return zip(\n\n /* Fetch version */\n requestJSON(`${url}/releases/latest`)\n .pipe(\n map(release => ({\n version: release.tag_name\n })),\n defaultIfEmpty({})\n ),\n\n /* Fetch stars and forks */\n requestJSON(url)\n .pipe(\n map(info => ({\n stars: info.stargazers_count,\n forks: info.forks_count\n })),\n defaultIfEmpty({})\n )\n )\n .pipe(\n map(([release, info]) => ({ ...release, ...info }))\n )\n\n /* User or organization */\n } else {\n const url = `https://api.github.com/repos/${user}`\n return requestJSON(url)\n .pipe(\n map(info => ({\n repositories: info.public_repos\n })),\n defaultIfEmpty({})\n )\n }\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ProjectSchema } from \"gitlab\"\nimport { Observable } from \"rxjs\"\nimport { defaultIfEmpty, map } from \"rxjs/operators\"\n\nimport { requestJSON } from \"~/browser\"\n\nimport { SourceFacts } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitLab repository facts\n *\n * @param base - GitLab base\n * @param project - GitLab project\n *\n * @returns Repository facts observable\n */\nexport function fetchSourceFactsFromGitLab(\n base: string, project: string\n): Observable {\n const url = `https://${base}/api/v4/projects/${encodeURIComponent(project)}`\n return requestJSON(url)\n .pipe(\n map(({ star_count, forks_count }) => ({\n stars: star_count,\n forks: forks_count\n })),\n defaultIfEmpty({})\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable } from \"rxjs\"\n\nimport { fetchSourceFactsFromGitHub } from \"../github\"\nimport { fetchSourceFactsFromGitLab } from \"../gitlab\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Repository facts for repositories\n */\nexport interface RepositoryFacts {\n stars?: number /* Number of stars */\n forks?: number /* Number of forks */\n version?: string /* Latest version */\n}\n\n/**\n * Repository facts for organizations\n */\nexport interface OrganizationFacts {\n repositories?: number /* Number of repositories */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Repository facts\n */\nexport type SourceFacts =\n | RepositoryFacts\n | OrganizationFacts\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch repository facts\n *\n * @param url - Repository URL\n *\n * @returns Repository facts observable\n */\nexport function fetchSourceFacts(\n url: string\n): Observable {\n const [type] = url.match(/(git(?:hub|lab))/i) || []\n switch (type.toLowerCase()) {\n\n /* GitHub repository */\n case \"github\":\n const [, user, repo] = url.match(/^.+github\\.com\\/([^/]+)\\/?([^/]+)?/i)!\n return fetchSourceFactsFromGitHub(user, repo)\n\n /* GitLab repository */\n case \"gitlab\":\n const [, base, slug] = url.match(/^.+?([^/]*gitlab[^/]+)\\/(.+?)\\/?$/i)!\n return fetchSourceFactsFromGitLab(base, slug)\n\n /* Everything else */\n default:\n return NEVER\n }\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, Subject, defer, of } from \"rxjs\"\nimport {\n catchError,\n filter,\n finalize,\n map,\n shareReplay,\n tap\n} from \"rxjs/operators\"\n\nimport { setSourceFacts, setSourceState } from \"~/actions\"\nimport { renderSourceFacts } from \"~/templates\"\n\nimport { Component } from \"../../_\"\nimport { SourceFacts, fetchSourceFacts } from \"../facts\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Repository information\n */\nexport interface Source {\n facts: SourceFacts /* Repository facts */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Repository information observable\n */\nlet fetch$: Observable\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch repository information\n *\n * This function tries to read the repository facts from session storage, and\n * if unsuccessful, fetches them from the underlying provider.\n *\n * @param el - Repository information element\n *\n * @returns Repository information observable\n */\nexport function watchSource(\n el: HTMLAnchorElement\n): Observable {\n return fetch$ ||= defer(() => {\n const data = sessionStorage.getItem(__prefix(\"__source\"))\n if (data) {\n return of(JSON.parse(data))\n } else {\n const value$ = fetchSourceFacts(el.href)\n value$.subscribe(value => {\n try {\n sessionStorage.setItem(__prefix(\"__source\"), JSON.stringify(value))\n } catch (err) {\n /* Uncritical, just swallow */\n }\n })\n\n /* Return value */\n return value$\n }\n })\n .pipe(\n catchError(() => NEVER),\n filter(facts => Object.keys(facts).length > 0),\n map(facts => ({ facts })),\n shareReplay(1)\n )\n}\n\n/**\n * Mount repository information\n *\n * @param el - Repository information element\n *\n * @returns Repository information component observable\n */\nexport function mountSource(\n el: HTMLAnchorElement\n): Observable> {\n const internal$ = new Subject()\n internal$.subscribe(({ facts }) => {\n setSourceFacts(el, renderSourceFacts(facts))\n setSourceState(el, \"done\")\n })\n\n /* Create and return component */\n return watchSource(el)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, Subject, animationFrameScheduler } from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n finalize,\n map,\n observeOn,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { resetTabsState, setTabsState } from \"~/actions\"\nimport {\n Viewport,\n watchElementSize,\n watchViewportAt\n} from \"~/browser\"\n\nimport { Component } from \"../_\"\nimport { Header } from \"../header\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Navigation tabs\n */\nexport interface Tabs {\n hidden: boolean /* User scrolled past tabs */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch navigation tabs\n *\n * @param el - Navigation tabs element\n * @param options - Options\n *\n * @returns Navigation tabs observable\n */\nexport function watchTabs(\n el: HTMLElement, { viewport$, header$ }: WatchOptions\n): Observable {\n return watchElementSize(document.body)\n .pipe(\n switchMap(() => watchViewportAt(el, { header$, viewport$ })),\n map(({ offset: { y } }) => {\n return {\n hidden: y >= 10\n }\n }),\n distinctUntilKeyChanged(\"hidden\")\n )\n}\n\n/**\n * Mount navigation tabs\n *\n * This function hides the navigation tabs when scrolling past the threshold\n * and makes them reappear in a nice CSS animation when scrolling back up.\n *\n * @param el - Navigation tabs element\n * @param options - Options\n *\n * @returns Navigation tabs component observable\n */\nexport function mountTabs(\n el: HTMLElement, options: MountOptions\n): Observable> {\n const internal$ = new Subject()\n internal$\n .pipe(\n observeOn(animationFrameScheduler)\n )\n .subscribe({\n\n /* Update state */\n next({ hidden }) {\n if (hidden)\n setTabsState(el, \"hidden\")\n else\n resetTabsState(el)\n },\n\n /* Reset on complete */\n complete() {\n resetTabsState(el)\n }\n })\n\n /* Create and return component */\n return watchTabs(el, options)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n animationFrameScheduler,\n combineLatest\n} from \"rxjs\"\nimport {\n bufferCount,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n finalize,\n map,\n observeOn,\n scan,\n startWith,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport {\n resetAnchorActive,\n resetAnchorState,\n setAnchorActive,\n setAnchorState\n} from \"~/actions\"\nimport {\n Viewport,\n getElement,\n getElements,\n watchElementSize\n} from \"~/browser\"\n\nimport { Component } from \"../_\"\nimport { Header } from \"../header\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Table of contents\n */\nexport interface TableOfContents {\n prev: HTMLAnchorElement[][] /* Anchors (previous) */\n next: HTMLAnchorElement[][] /* Anchors (next) */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n header$: Observable
    /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch table of contents\n *\n * This is effectively a scroll spy implementation which will account for the\n * fixed header and automatically re-calculate anchor offsets when the viewport\n * is resized. The returned observable will only emit if the table of contents\n * needs to be repainted.\n *\n * This implementation tracks an anchor element's entire path starting from its\n * level up to the top-most anchor element, e.g. `[h3, h2, h1]`. Although the\n * Material theme currently doesn't make use of this information, it enables\n * the styling of the entire hierarchy through customization.\n *\n * Note that the current anchor is the last item of the `prev` anchor list.\n *\n * @param anchors - Anchor elements\n * @param options - Options\n *\n * @returns Table of contents observable\n */\nexport function watchTableOfContents(\n anchors: HTMLAnchorElement[], { viewport$, header$ }: WatchOptions\n): Observable {\n const table = new Map()\n for (const anchor of anchors) {\n const id = decodeURIComponent(anchor.hash.substring(1))\n const target = getElement(`[id=\"${id}\"]`)\n if (typeof target !== \"undefined\")\n table.set(anchor, target)\n }\n\n /* Compute necessary adjustment for header */\n const adjust$ = header$\n .pipe(\n map(header => 24 + header.height)\n )\n\n /* Compute partition of previous and next anchors */\n const partition$ = watchElementSize(document.body)\n .pipe(\n distinctUntilKeyChanged(\"height\"),\n\n /* Build index to map anchor paths to vertical offsets */\n map(() => {\n let path: HTMLAnchorElement[] = []\n return [...table].reduce((index, [anchor, target]) => {\n while (path.length) {\n const last = table.get(path[path.length - 1])!\n if (last.tagName >= target.tagName) {\n path.pop()\n } else {\n break\n }\n }\n\n /* If the current anchor is hidden, continue with its parent */\n let offset = target.offsetTop\n while (!offset && target.parentElement) {\n target = target.parentElement\n offset = target.offsetTop\n }\n\n /* Map reversed anchor path to vertical offset */\n return index.set(\n [...path = [...path, anchor]].reverse(),\n offset\n )\n }, new Map())\n }),\n\n /* Sort index by vertical offset (see https://bit.ly/30z6QSO) */\n map(index => new Map([...index].sort(([, a], [, b]) => a - b))),\n\n /* Re-compute partition when viewport offset changes */\n switchMap(index => combineLatest([adjust$, viewport$])\n .pipe(\n scan(([prev, next], [adjust, { offset: { y } }]) => {\n\n /* Look forward */\n while (next.length) {\n const [, offset] = next[0]\n if (offset - adjust < y) {\n prev = [...prev, next.shift()!]\n } else {\n break\n }\n }\n\n /* Look backward */\n while (prev.length) {\n const [, offset] = prev[prev.length - 1]\n if (offset - adjust >= y) {\n next = [prev.pop()!, ...next]\n } else {\n break\n }\n }\n\n /* Return partition */\n return [prev, next]\n }, [[], [...index]]),\n distinctUntilChanged((a, b) => (\n a[0] === b[0] &&\n a[1] === b[1]\n ))\n )\n )\n )\n\n /* Compute and return anchor list migrations */\n return partition$\n .pipe(\n map(([prev, next]) => ({\n prev: prev.map(([path]) => path),\n next: next.map(([path]) => path)\n })),\n\n /* Extract anchor list migrations */\n startWith({ prev: [], next: [] }),\n bufferCount(2, 1),\n map(([a, b]) => {\n\n /* Moving down */\n if (a.prev.length < b.prev.length) {\n return {\n prev: b.prev.slice(Math.max(0, a.prev.length - 1), b.prev.length),\n next: []\n }\n\n /* Moving up */\n } else {\n return {\n prev: b.prev.slice(-1),\n next: b.next.slice(0, b.next.length - a.next.length)\n }\n }\n })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Mount table of contents\n *\n * @param el - Anchor list element\n * @param options - Options\n *\n * @returns Table of contents component observable\n */\nexport function mountTableOfContents(\n el: HTMLElement, options: MountOptions\n): Observable> {\n const internal$ = new Subject()\n internal$\n .pipe(\n observeOn(animationFrameScheduler),\n )\n .subscribe(({ prev, next }) => {\n\n /* Look forward */\n for (const [anchor] of next) {\n resetAnchorActive(anchor)\n resetAnchorState(anchor)\n }\n\n /* Look backward */\n for (const [index, [anchor]] of prev.entries()) {\n setAnchorActive(anchor, index === prev.length - 1)\n setAnchorState(anchor, \"blur\")\n }\n })\n\n /* Create and return component */\n const anchors = getElements(\"[href^=\\\\#]\", el)\n return watchTableOfContents(anchors, options)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n Subject,\n animationFrameScheduler,\n combineLatest\n} from \"rxjs\"\nimport {\n bufferCount,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n finalize,\n map,\n observeOn,\n tap\n} from \"rxjs/operators\"\n\nimport { resetBackToTopState, setBackToTopState } from \"~/actions\"\nimport { Viewport } from \"~/browser\"\n\nimport { Component } from \"../_\"\nimport { Main } from \"../main\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Back-to-top button\n */\nexport interface BackToTop {\n hidden: boolean /* User scrolled up */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n viewport$: Observable /* Viewport observable */\n main$: Observable
    /* Main area observable */\n}\n\n/**\n * Mount options\n */\ninterface MountOptions {\n viewport$: Observable /* Viewport observable */\n main$: Observable
    /* Main area observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch back-to-top\n *\n * @param _el - Back-to-top element\n * @param options - Options\n *\n * @returns Back-to-top observable\n */\nexport function watchBackToTop(\n _el: HTMLElement, { viewport$, main$ }: WatchOptions\n): Observable {\n\n /* Compute direction */\n const direction$ = viewport$\n .pipe(\n map(({ offset: { y } }) => y),\n bufferCount(2, 1),\n map(([a, b]) => a > b),\n distinctUntilChanged()\n )\n\n /* Compute whether button should be hidden */\n const hidden$ = main$\n .pipe(\n distinctUntilKeyChanged(\"active\")\n )\n\n /* Compute threshold for hiding */\n return combineLatest([hidden$, direction$])\n .pipe(\n map(([{ active }, direction]) => ({\n hidden: !(active && direction)\n })),\n distinctUntilChanged((a, b) => (\n a.hidden === b.hidden\n ))\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Mount back-to-top\n *\n * @param el - Back-to-top element\n * @param options - Options\n *\n * @returns Back-to-top component observable\n */\nexport function mountBackToTop(\n el: HTMLElement, options: MountOptions\n): Observable> {\n const internal$ = new Subject()\n internal$\n .pipe(\n observeOn(animationFrameScheduler)\n )\n .subscribe({\n\n /* Update state */\n next({ hidden }) {\n if (hidden)\n setBackToTopState(el, \"hidden\")\n else\n resetBackToTopState(el)\n },\n\n /* Reset on complete */\n complete() {\n resetBackToTopState(el)\n }\n })\n\n /* Create and return component */\n return watchBackToTop(el, options)\n .pipe(\n tap(internal$),\n finalize(() => internal$.complete()),\n map(state => ({ ref: el, ...state }))\n )\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, of } from \"rxjs\"\nimport {\n mapTo,\n mergeMap,\n switchMap,\n takeWhile,\n tap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport { getElements } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n tablet$: Observable /* Tablet breakpoint observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch indeterminate checkboxes\n *\n * This function replaces the indeterminate \"pseudo state\" with the actual\n * indeterminate state, which is used to keep navigation always expanded.\n *\n * @param options - Options\n */\nexport function patchIndeterminate(\n { document$, tablet$ }: PatchOptions\n): void {\n document$\n .pipe(\n switchMap(() => of(...getElements(\n \"[data-md-state=indeterminate]\"\n ))),\n tap(el => {\n el.indeterminate = true\n el.checked = false\n }),\n mergeMap(el => fromEvent(el, \"change\")\n .pipe(\n takeWhile(() => el.hasAttribute(\"data-md-state\")),\n mapTo(el)\n )\n ),\n withLatestFrom(tablet$)\n )\n .subscribe(([el, tablet]) => {\n el.removeAttribute(\"data-md-state\")\n if (tablet)\n el.checked = false\n })\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, of } from \"rxjs\"\nimport {\n filter,\n mapTo,\n mergeMap,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { getElements } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether the given device is an Apple device\n *\n * @returns Test result\n */\nfunction isAppleDevice(): boolean {\n return /(iPad|iPhone|iPod)/.test(navigator.userAgent)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all elements with `data-md-scrollfix` attributes\n *\n * This is a year-old patch which ensures that overflow scrolling works at the\n * top and bottom of containers on iOS by ensuring a `1px` scroll offset upon\n * the start of a touch event.\n *\n * @see https://bit.ly/2SCtAOO - Original source\n *\n * @param options - Options\n */\nexport function patchScrollfix(\n { document$ }: PatchOptions\n): void {\n document$\n .pipe(\n switchMap(() => of(...getElements(\"[data-md-scrollfix]\"))),\n tap(el => el.removeAttribute(\"data-md-scrollfix\")),\n filter(isAppleDevice),\n mergeMap(el => fromEvent(el, \"touchstart\")\n .pipe(\n mapTo(el)\n )\n )\n )\n .subscribe(el => {\n const top = el.scrollTop\n\n /* We're at the top of the container */\n if (top === 0) {\n el.scrollTop = 1\n\n /* We're at the bottom of the container */\n } else if (top + el.offsetHeight === el.scrollHeight) {\n el.scrollTop = top - 1\n }\n })\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n animationFrameScheduler,\n combineLatest,\n of\n} from \"rxjs\"\nimport {\n delay,\n map,\n observeOn,\n switchMap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport { resetScrollLock, setScrollLock } from \"~/actions\"\nimport { Viewport, watchToggle } from \"~/browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n viewport$: Observable /* Viewport observable */\n tablet$: Observable /* Tablet breakpoint observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch the document body to lock when search is open\n *\n * For mobile and tablet viewports, the search is rendered full screen, which\n * leads to scroll leaking when at the top or bottom of the search result. This\n * function locks the body when the search is in full screen mode, and restores\n * the scroll position when leaving.\n *\n * @param options - Options\n */\nexport function patchScrolllock(\n { viewport$, tablet$ }: PatchOptions\n): void {\n combineLatest([watchToggle(\"search\"), tablet$])\n .pipe(\n map(([active, tablet]) => active && !tablet),\n switchMap(active => of(active)\n .pipe(\n delay(active ? 400 : 100),\n observeOn(animationFrameScheduler)\n )\n ),\n withLatestFrom(viewport$)\n )\n .subscribe(([active, { offset: { y }}]) => {\n if (active)\n setScrollLock(document.body, y)\n else\n resetScrollLock(document.body)\n })\n}\n"], + "mappings": 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Register as an anonymous module. + define(factory) + } else if (typeof exports === 'object') { + /** + * Node. 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+ }) + this.addWords(words, false) + } + if(finalize){ + this.finalizeDict(); + } + }, + + dictSeek: function (l, r, ch, strOffset, pos) { + var ans = null; + while (l <= r) { + var m = Math.floor((l + r) / 2), + dict_item = this.dict[m], + len = dict_item.length; + if (len <= strOffset) { + l = m + 1; + } else { + var ch_ = dict_item[strOffset]; + if (ch_ < ch) { + l = m + 1; + } else if (ch_ > ch) { + r = m - 1; + } else { + ans = m; + if (pos == LEFT) { + r = m - 1; + } else { + l = m + 1; + } + } + } + } + return ans; + }, + + isFinal: function (acceptor) { + return this.dict[acceptor.l].length == acceptor.strOffset; + }, + + createAcceptor: function () { + return { + l: 0, + r: this.dict.length - 1, + strOffset: 0, + isFinal: false, + dict: this, + transit: function (ch) { + return this.dict.transit(this, ch); + }, + isError: false, + tag: "DICT", + w: 1, + type: "DICT" + }; + }, + + transit: function (acceptor, ch) { + var l = this.dictSeek(acceptor.l, + acceptor.r, + ch, + acceptor.strOffset, + LEFT); + if (l !== null) { + var r = this.dictSeek(l, + acceptor.r, + ch, + acceptor.strOffset, + RIGHT); + acceptor.l = l; + acceptor.r = r; + acceptor.strOffset++; + acceptor.isFinal = this.isFinal(acceptor); + } else { + acceptor.isError = true; + } + return acceptor; + }, + + sortuniq: function(a){ + return a.sort().filter(function(item, pos, arr){ + return !pos || item != arr[pos - 1]; + }) + }, + + flatten: function(a){ + //[[1,2],[3]] -> [1,2,3] + return [].concat.apply([], a); + } +}; +module.exports = WordcutDict; + +}).call(this,"/dist/tmp") +},{"glob":16,"path":22}],3:[function(require,module,exports){ +var WordRule = { + createAcceptor: function(tag) { + if (tag["WORD_RULE"]) + return null; + + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + var lch = ch.toLowerCase(); + if (lch >= "a" && lch <= "z") { + this.isFinal = true; + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "WORD_RULE", + type: "WORD_RULE", + w: 1}; + } +}; + +var NumberRule = { + createAcceptor: function(tag) { + if (tag["NUMBER_RULE"]) + return null; + + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + if (ch >= "0" && ch <= "9") { + this.isFinal = true; + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "NUMBER_RULE", + type: "NUMBER_RULE", + w: 1}; + } +}; + +var SpaceRule = { + tag: "SPACE_RULE", + createAcceptor: function(tag) { + + if (tag["SPACE_RULE"]) + return null; + + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + if (ch == " " || ch == "\t" || ch == "\r" || ch == "\n" || + ch == "\u00A0" || ch=="\u2003"//nbsp and emsp + ) { + this.isFinal = true; + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: SpaceRule.tag, + w: 1, + type: "SPACE_RULE"}; + } +} + +var SingleSymbolRule = { + tag: "SINSYM", + createAcceptor: function(tag) { + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + if (this.strOffset == 0 && ch.match(/^[\@\(\)\/\,\-\."`]$/)) { + this.isFinal = true; + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "SINSYM", + w: 1, + type: "SINSYM"}; + } +} + + +var LatinRules = [WordRule, SpaceRule, SingleSymbolRule, NumberRule]; + +module.exports = LatinRules; + +},{}],4:[function(require,module,exports){ +var _ = require("underscore") + , WordcutCore = require("./wordcut_core"); +var PathInfoBuilder = { + + /* + buildByPartAcceptors: function(path, acceptors, i) { + var + var genInfos = partAcceptors.reduce(function(genInfos, acceptor) { + + }, []); + + return genInfos; + } + */ + + buildByAcceptors: function(path, finalAcceptors, i) { + var self = this; + var infos = finalAcceptors.map(function(acceptor) { + var p = i - acceptor.strOffset + 1 + , _info = path[p]; + + var info = {p: p, + mw: _info.mw + (acceptor.mw === undefined ? 0 : acceptor.mw), + w: acceptor.w + _info.w, + unk: (acceptor.unk ? acceptor.unk : 0) + _info.unk, + type: acceptor.type}; + + if (acceptor.type == "PART") { + for(var j = p + 1; j <= i; j++) { + path[j].merge = p; + } + info.merge = p; + } + + return info; + }); + return infos.filter(function(info) { return info; }); + }, + + fallback: function(path, leftBoundary, text, i) { + var _info = path[leftBoundary]; + if (text[i].match(/[\u0E48-\u0E4E]/)) { + if (leftBoundary != 0) + leftBoundary = path[leftBoundary].p; + return {p: leftBoundary, + mw: 0, + w: 1 + _info.w, + unk: 1 + _info.unk, + type: "UNK"}; +/* } else if(leftBoundary > 0 && path[leftBoundary].type !== "UNK") { + leftBoundary = path[leftBoundary].p; + return {p: leftBoundary, + w: 1 + _info.w, + unk: 1 + _info.unk, + type: "UNK"}; */ + } else { + return {p: leftBoundary, + mw: _info.mw, + w: 1 + _info.w, + unk: 1 + _info.unk, + type: "UNK"}; + } + }, + + build: function(path, finalAcceptors, i, leftBoundary, text) { + var basicPathInfos = this.buildByAcceptors(path, finalAcceptors, i); + if (basicPathInfos.length > 0) { + return basicPathInfos; + } else { + return [this.fallback(path, leftBoundary, text, i)]; + } + } +}; + +module.exports = function() { + return _.clone(PathInfoBuilder); +} + +},{"./wordcut_core":8,"underscore":25}],5:[function(require,module,exports){ +var _ = require("underscore"); + + +var PathSelector = { + selectPath: function(paths) { + var path = paths.reduce(function(selectedPath, path) { + if (selectedPath == null) { + return path; + } else { + if (path.unk < selectedPath.unk) + return path; + if (path.unk == selectedPath.unk) { + if (path.mw < selectedPath.mw) + return path + if (path.mw == selectedPath.mw) { + if (path.w < selectedPath.w) + return path; + } + } + return selectedPath; + } + }, null); + return path; + }, + + createPath: function() { + return [{p:null, w:0, unk:0, type: "INIT", mw:0}]; + } +}; + +module.exports = function() { + return _.clone(PathSelector); +}; + +},{"underscore":25}],6:[function(require,module,exports){ +function isMatch(pat, offset, ch) { + if (pat.length <= offset) + return false; + var _ch = pat[offset]; + return _ch == ch || + (_ch.match(/[กข]/) && ch.match(/[ก-ฮ]/)) || + (_ch.match(/[มบ]/) && ch.match(/[ก-ฮ]/)) || + (_ch.match(/\u0E49/) && ch.match(/[\u0E48-\u0E4B]/)); +} + +var Rule0 = { + pat: "เหก็ม", + createAcceptor: function(tag) { + return {strOffset: 0, + isFinal: false, + transit: function(ch) { + if (isMatch(Rule0.pat, this.strOffset,ch)) { + this.isFinal = (this.strOffset + 1 == Rule0.pat.length); + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "THAI_RULE", + type: "THAI_RULE", + w: 1}; + } +}; + +var PartRule = { + createAcceptor: function(tag) { + return {strOffset: 0, + patterns: [ + "แก", "เก", "ก้", "กก์", "กา", "กี", "กิ", "กืก" + ], + isFinal: false, + transit: function(ch) { + var offset = this.strOffset; + this.patterns = this.patterns.filter(function(pat) { + return isMatch(pat, offset, ch); + }); + + if (this.patterns.length > 0) { + var len = 1 + offset; + this.isFinal = this.patterns.some(function(pat) { + return pat.length == len; + }); + this.strOffset++; + } else { + this.isError = true; + } + return this; + }, + isError: false, + tag: "PART", + type: "PART", + unk: 1, + w: 1}; + } +}; + +var ThaiRules = [Rule0, PartRule]; + +module.exports = ThaiRules; + +},{}],7:[function(require,module,exports){ +var sys = require("sys") + , WordcutDict = require("./dict") + , WordcutCore = require("./wordcut_core") + , PathInfoBuilder = require("./path_info_builder") + , PathSelector = require("./path_selector") + , Acceptors = require("./acceptors") + , latinRules = require("./latin_rules") + , thaiRules = require("./thai_rules") + , _ = require("underscore"); + + +var Wordcut = Object.create(WordcutCore); +Wordcut.defaultPathInfoBuilder = PathInfoBuilder; +Wordcut.defaultPathSelector = PathSelector; +Wordcut.defaultAcceptors = Acceptors; +Wordcut.defaultLatinRules = latinRules; +Wordcut.defaultThaiRules = thaiRules; +Wordcut.defaultDict = WordcutDict; + + +Wordcut.initNoDict = function(dict_path) { + var self = this; + self.pathInfoBuilder = new self.defaultPathInfoBuilder; + self.pathSelector = new self.defaultPathSelector; + self.acceptors = new self.defaultAcceptors; + self.defaultLatinRules.forEach(function(rule) { + self.acceptors.creators.push(rule); + }); + self.defaultThaiRules.forEach(function(rule) { + self.acceptors.creators.push(rule); + }); +}; + +Wordcut.init = function(dict_path, withDefault, additionalWords) { + withDefault = withDefault || false; + this.initNoDict(); + var dict = _.clone(this.defaultDict); + dict.init(dict_path, withDefault, additionalWords); + this.acceptors.creators.push(dict); +}; + +module.exports = Wordcut; + +},{"./acceptors":1,"./dict":2,"./latin_rules":3,"./path_info_builder":4,"./path_selector":5,"./thai_rules":6,"./wordcut_core":8,"sys":28,"underscore":25}],8:[function(require,module,exports){ +var WordcutCore = { + + buildPath: function(text) { + var self = this + , path = self.pathSelector.createPath() + , leftBoundary = 0; + self.acceptors.reset(); + for (var i = 0; i < text.length; i++) { + var ch = text[i]; + self.acceptors.transit(ch); + + var possiblePathInfos = self + .pathInfoBuilder + .build(path, + self.acceptors.getFinalAcceptors(), + i, + leftBoundary, + text); + var selectedPath = self.pathSelector.selectPath(possiblePathInfos) + + path.push(selectedPath); + if (selectedPath.type !== "UNK") { + leftBoundary = i; + } + } + return path; + }, + + pathToRanges: function(path) { + var e = path.length - 1 + , ranges = []; + + while (e > 0) { + var info = path[e] + , s = info.p; + + if (info.merge !== undefined && ranges.length > 0) { + var r = ranges[ranges.length - 1]; + r.s = info.merge; + s = r.s; + } else { + ranges.push({s:s, e:e}); + } + e = s; + } + return ranges.reverse(); + }, + + rangesToText: function(text, ranges, delimiter) { + return ranges.map(function(r) { + return text.substring(r.s, r.e); + }).join(delimiter); + }, + + cut: function(text, delimiter) { + var path = this.buildPath(text) + , ranges = this.pathToRanges(path); + return this + .rangesToText(text, ranges, + (delimiter === undefined ? "|" : delimiter)); + }, + + cutIntoRanges: function(text, noText) { + var path = this.buildPath(text) + , ranges = this.pathToRanges(path); + + if (!noText) { + ranges.forEach(function(r) { + r.text = text.substring(r.s, r.e); + }); + } + return ranges; + }, + + cutIntoArray: function(text) { + var path = this.buildPath(text) + , ranges = this.pathToRanges(path); + + return ranges.map(function(r) { + return text.substring(r.s, r.e) + }); + } +}; + +module.exports = WordcutCore; + +},{}],9:[function(require,module,exports){ +// http://wiki.commonjs.org/wiki/Unit_Testing/1.0 +// +// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8! +// +// Originally from narwhal.js (http://narwhaljs.org) +// Copyright (c) 2009 Thomas Robinson <280north.com> +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the 'Software'), to +// deal in the Software without restriction, including without limitation the +// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +// sell copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +// when used in node, this will actually load the util module we depend on +// versus loading the builtin util module as happens otherwise +// this is a bug in node module loading as far as I am concerned +var util = require('util/'); + +var pSlice = Array.prototype.slice; +var hasOwn = Object.prototype.hasOwnProperty; + +// 1. The assert module provides functions that throw +// AssertionError's when particular conditions are not met. The +// assert module must conform to the following interface. + +var assert = module.exports = ok; + +// 2. The AssertionError is defined in assert. +// new assert.AssertionError({ message: message, +// actual: actual, +// expected: expected }) + +assert.AssertionError = function AssertionError(options) { + this.name = 'AssertionError'; + this.actual = options.actual; + this.expected = options.expected; + this.operator = options.operator; + if (options.message) { + this.message = options.message; + this.generatedMessage = false; + } else { + this.message = getMessage(this); + this.generatedMessage = true; + } + var stackStartFunction = options.stackStartFunction || fail; + + if (Error.captureStackTrace) { + Error.captureStackTrace(this, stackStartFunction); + } + else { + // non v8 browsers so we can have a stacktrace + var err = new Error(); + if (err.stack) { + var out = err.stack; + + // try to strip useless frames + var fn_name = stackStartFunction.name; + var idx = out.indexOf('\n' + fn_name); + if (idx >= 0) { + // once we have located the function frame + // we need to strip out everything before it (and its line) + var next_line = out.indexOf('\n', idx + 1); + out = out.substring(next_line + 1); + } + + this.stack = out; + } + } +}; + +// assert.AssertionError instanceof Error +util.inherits(assert.AssertionError, Error); + +function replacer(key, value) { + if (util.isUndefined(value)) { + return '' + value; + } + if (util.isNumber(value) && !isFinite(value)) { + return value.toString(); + } + if (util.isFunction(value) || util.isRegExp(value)) { + return value.toString(); + } + return value; +} + +function truncate(s, n) { + if (util.isString(s)) { + return s.length < n ? s : s.slice(0, n); + } else { + return s; + } +} + +function getMessage(self) { + return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' + + self.operator + ' ' + + truncate(JSON.stringify(self.expected, replacer), 128); +} + +// At present only the three keys mentioned above are used and +// understood by the spec. Implementations or sub modules can pass +// other keys to the AssertionError's constructor - they will be +// ignored. + +// 3. All of the following functions must throw an AssertionError +// when a corresponding condition is not met, with a message that +// may be undefined if not provided. All assertion methods provide +// both the actual and expected values to the assertion error for +// display purposes. + +function fail(actual, expected, message, operator, stackStartFunction) { + throw new assert.AssertionError({ + message: message, + actual: actual, + expected: expected, + operator: operator, + stackStartFunction: stackStartFunction + }); +} + +// EXTENSION! allows for well behaved errors defined elsewhere. +assert.fail = fail; + +// 4. Pure assertion tests whether a value is truthy, as determined +// by !!guard. +// assert.ok(guard, message_opt); +// This statement is equivalent to assert.equal(true, !!guard, +// message_opt);. To test strictly for the value true, use +// assert.strictEqual(true, guard, message_opt);. + +function ok(value, message) { + if (!value) fail(value, true, message, '==', assert.ok); +} +assert.ok = ok; + +// 5. The equality assertion tests shallow, coercive equality with +// ==. +// assert.equal(actual, expected, message_opt); + +assert.equal = function equal(actual, expected, message) { + if (actual != expected) fail(actual, expected, message, '==', assert.equal); +}; + +// 6. The non-equality assertion tests for whether two objects are not equal +// with != assert.notEqual(actual, expected, message_opt); + +assert.notEqual = function notEqual(actual, expected, message) { + if (actual == expected) { + fail(actual, expected, message, '!=', assert.notEqual); + } +}; + +// 7. The equivalence assertion tests a deep equality relation. +// assert.deepEqual(actual, expected, message_opt); + +assert.deepEqual = function deepEqual(actual, expected, message) { + if (!_deepEqual(actual, expected)) { + fail(actual, expected, message, 'deepEqual', assert.deepEqual); + } +}; + +function _deepEqual(actual, expected) { + // 7.1. All identical values are equivalent, as determined by ===. + if (actual === expected) { + return true; + + } else if (util.isBuffer(actual) && util.isBuffer(expected)) { + if (actual.length != expected.length) return false; + + for (var i = 0; i < actual.length; i++) { + if (actual[i] !== expected[i]) return false; + } + + return true; + + // 7.2. If the expected value is a Date object, the actual value is + // equivalent if it is also a Date object that refers to the same time. + } else if (util.isDate(actual) && util.isDate(expected)) { + return actual.getTime() === expected.getTime(); + + // 7.3 If the expected value is a RegExp object, the actual value is + // equivalent if it is also a RegExp object with the same source and + // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`). + } else if (util.isRegExp(actual) && util.isRegExp(expected)) { + return actual.source === expected.source && + actual.global === expected.global && + actual.multiline === expected.multiline && + actual.lastIndex === expected.lastIndex && + actual.ignoreCase === expected.ignoreCase; + + // 7.4. Other pairs that do not both pass typeof value == 'object', + // equivalence is determined by ==. + } else if (!util.isObject(actual) && !util.isObject(expected)) { + return actual == expected; + + // 7.5 For all other Object pairs, including Array objects, equivalence is + // determined by having the same number of owned properties (as verified + // with Object.prototype.hasOwnProperty.call), the same set of keys + // (although not necessarily the same order), equivalent values for every + // corresponding key, and an identical 'prototype' property. Note: this + // accounts for both named and indexed properties on Arrays. + } else { + return objEquiv(actual, expected); + } +} + +function isArguments(object) { + return Object.prototype.toString.call(object) == '[object Arguments]'; +} + +function objEquiv(a, b) { + if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b)) + return false; + // an identical 'prototype' property. + if (a.prototype !== b.prototype) return false; + // if one is a primitive, the other must be same + if (util.isPrimitive(a) || util.isPrimitive(b)) { + return a === b; + } + var aIsArgs = isArguments(a), + bIsArgs = isArguments(b); + if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs)) + return false; + if (aIsArgs) { + a = pSlice.call(a); + b = pSlice.call(b); + return _deepEqual(a, b); + } + var ka = objectKeys(a), + kb = objectKeys(b), + key, i; + // having the same number of owned properties (keys incorporates + // hasOwnProperty) + if (ka.length != kb.length) + return false; + //the same set of keys (although not necessarily the same order), + ka.sort(); + kb.sort(); + //~~~cheap key test + for (i = ka.length - 1; i >= 0; i--) { + if (ka[i] != kb[i]) + return false; + } + //equivalent values for every corresponding key, and + //~~~possibly expensive deep test + for (i = ka.length - 1; i >= 0; i--) { + key = ka[i]; + if (!_deepEqual(a[key], b[key])) return false; + } + return true; +} + +// 8. The non-equivalence assertion tests for any deep inequality. +// assert.notDeepEqual(actual, expected, message_opt); + +assert.notDeepEqual = function notDeepEqual(actual, expected, message) { + if (_deepEqual(actual, expected)) { + fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual); + } +}; + +// 9. The strict equality assertion tests strict equality, as determined by ===. +// assert.strictEqual(actual, expected, message_opt); + +assert.strictEqual = function strictEqual(actual, expected, message) { + if (actual !== expected) { + fail(actual, expected, message, '===', assert.strictEqual); + } +}; + +// 10. The strict non-equality assertion tests for strict inequality, as +// determined by !==. assert.notStrictEqual(actual, expected, message_opt); + +assert.notStrictEqual = function notStrictEqual(actual, expected, message) { + if (actual === expected) { + fail(actual, expected, message, '!==', assert.notStrictEqual); + } +}; + +function expectedException(actual, expected) { + if (!actual || !expected) { + return false; + } + + if (Object.prototype.toString.call(expected) == '[object RegExp]') { + return expected.test(actual); + } else if (actual instanceof expected) { + return true; + } else if (expected.call({}, actual) === true) { + return true; + } + + return false; +} + +function _throws(shouldThrow, block, expected, message) { + var actual; + + if (util.isString(expected)) { + message = expected; + expected = null; + } + + try { + block(); + } catch (e) { + actual = e; + } + + message = (expected && expected.name ? ' (' + expected.name + ').' : '.') + + (message ? ' ' + message : '.'); + + if (shouldThrow && !actual) { + fail(actual, expected, 'Missing expected exception' + message); + } + + if (!shouldThrow && expectedException(actual, expected)) { + fail(actual, expected, 'Got unwanted exception' + message); + } + + if ((shouldThrow && actual && expected && + !expectedException(actual, expected)) || (!shouldThrow && actual)) { + throw actual; + } +} + +// 11. Expected to throw an error: +// assert.throws(block, Error_opt, message_opt); + +assert.throws = function(block, /*optional*/error, /*optional*/message) { + _throws.apply(this, [true].concat(pSlice.call(arguments))); +}; + +// EXTENSION! This is annoying to write outside this module. +assert.doesNotThrow = function(block, /*optional*/message) { + _throws.apply(this, [false].concat(pSlice.call(arguments))); +}; + +assert.ifError = function(err) { if (err) {throw err;}}; + +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) { + if (hasOwn.call(obj, key)) keys.push(key); + } + return keys; +}; + +},{"util/":28}],10:[function(require,module,exports){ +'use strict'; +module.exports = balanced; +function balanced(a, b, str) { + if (a instanceof RegExp) a = maybeMatch(a, str); + if (b instanceof RegExp) b = maybeMatch(b, str); + + var r = range(a, b, str); + + return r && { + start: r[0], + end: r[1], + pre: str.slice(0, r[0]), + body: str.slice(r[0] + a.length, r[1]), + post: str.slice(r[1] + b.length) + }; +} + +function maybeMatch(reg, str) { + var m = str.match(reg); + return m ? m[0] : null; +} + +balanced.range = range; +function range(a, b, str) { + var begs, beg, left, right, result; + var ai = str.indexOf(a); + var bi = str.indexOf(b, ai + 1); + var i = ai; + + if (ai >= 0 && bi > 0) { + begs = []; + left = str.length; + + while (i >= 0 && !result) { + if (i == ai) { + begs.push(i); + ai = str.indexOf(a, i + 1); + } else if (begs.length == 1) { + result = [ begs.pop(), bi ]; + } else { + beg = begs.pop(); + if (beg < left) { + left = beg; + right = bi; + } + + bi = str.indexOf(b, i + 1); + } + + i = ai < bi && ai >= 0 ? ai : bi; + } + + if (begs.length) { + result = [ left, right ]; + } + } + + return result; +} + +},{}],11:[function(require,module,exports){ +var concatMap = require('concat-map'); +var balanced = require('balanced-match'); + +module.exports = expandTop; + +var escSlash = '\0SLASH'+Math.random()+'\0'; +var escOpen = '\0OPEN'+Math.random()+'\0'; +var escClose = '\0CLOSE'+Math.random()+'\0'; +var escComma = '\0COMMA'+Math.random()+'\0'; +var escPeriod = '\0PERIOD'+Math.random()+'\0'; + +function numeric(str) { + return parseInt(str, 10) == str + ? parseInt(str, 10) + : str.charCodeAt(0); +} + +function escapeBraces(str) { + return str.split('\\\\').join(escSlash) + .split('\\{').join(escOpen) + .split('\\}').join(escClose) + .split('\\,').join(escComma) + .split('\\.').join(escPeriod); +} + +function unescapeBraces(str) { + return str.split(escSlash).join('\\') + .split(escOpen).join('{') + .split(escClose).join('}') + .split(escComma).join(',') + .split(escPeriod).join('.'); +} + + +// Basically just str.split(","), but handling cases +// where we have nested braced sections, which should be +// treated as individual members, like {a,{b,c},d} +function parseCommaParts(str) { + if (!str) + return ['']; + + var parts = []; + var m = balanced('{', '}', str); + + if (!m) + return str.split(','); + + var pre = m.pre; + var body = m.body; + var post = m.post; + var p = pre.split(','); + + p[p.length-1] += '{' + body + '}'; + var postParts = parseCommaParts(post); + if (post.length) { + p[p.length-1] += postParts.shift(); + p.push.apply(p, postParts); + } + + parts.push.apply(parts, p); + + return parts; +} + +function expandTop(str) { + if (!str) + return []; + + // I don't know why Bash 4.3 does this, but it does. + // Anything starting with {} will have the first two bytes preserved + // but *only* at the top level, so {},a}b will not expand to anything, + // but a{},b}c will be expanded to [a}c,abc]. + // One could argue that this is a bug in Bash, but since the goal of + // this module is to match Bash's rules, we escape a leading {} + if (str.substr(0, 2) === '{}') { + str = '\\{\\}' + str.substr(2); + } + + return expand(escapeBraces(str), true).map(unescapeBraces); +} + +function identity(e) { + return e; +} + +function embrace(str) { + return '{' + str + '}'; +} +function isPadded(el) { + return /^-?0\d/.test(el); +} + +function lte(i, y) { + return i <= y; +} +function gte(i, y) { + return i >= y; +} + +function expand(str, isTop) { + var expansions = []; + + var m = balanced('{', '}', str); + if (!m || /\$$/.test(m.pre)) return [str]; + + var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body); + var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body); + var isSequence = isNumericSequence || isAlphaSequence; + var isOptions = m.body.indexOf(',') >= 0; + if (!isSequence && !isOptions) { + // {a},b} + if (m.post.match(/,.*\}/)) { + str = m.pre + '{' + m.body + escClose + m.post; + return expand(str); + } + return [str]; + } + + var n; + if (isSequence) { + n = m.body.split(/\.\./); + } else { + n = parseCommaParts(m.body); + if (n.length === 1) { + // x{{a,b}}y ==> x{a}y x{b}y + n = expand(n[0], false).map(embrace); + if (n.length === 1) { + var post = m.post.length + ? expand(m.post, false) + : ['']; + return post.map(function(p) { + return m.pre + n[0] + p; + }); + } + } + } + + // at this point, n is the parts, and we know it's not a comma set + // with a single entry. + + // no need to expand pre, since it is guaranteed to be free of brace-sets + var pre = m.pre; + var post = m.post.length + ? expand(m.post, false) + : ['']; + + var N; + + if (isSequence) { + var x = numeric(n[0]); + var y = numeric(n[1]); + var width = Math.max(n[0].length, n[1].length) + var incr = n.length == 3 + ? Math.abs(numeric(n[2])) + : 1; + var test = lte; + var reverse = y < x; + if (reverse) { + incr *= -1; + test = gte; + } + var pad = n.some(isPadded); + + N = []; + + for (var i = x; test(i, y); i += incr) { + var c; + if (isAlphaSequence) { + c = String.fromCharCode(i); + if (c === '\\') + c = ''; + } else { + c = String(i); + if (pad) { + var need = width - c.length; + if (need > 0) { + var z = new Array(need + 1).join('0'); + if (i < 0) + c = '-' + z + c.slice(1); + else + c = z + c; + } + } + } + N.push(c); + } + } else { + N = concatMap(n, function(el) { return expand(el, false) }); + } + + for (var j = 0; j < N.length; j++) { + for (var k = 0; k < post.length; k++) { + var expansion = pre + N[j] + post[k]; + if (!isTop || isSequence || expansion) + expansions.push(expansion); + } + } + + return expansions; +} + + +},{"balanced-match":10,"concat-map":13}],12:[function(require,module,exports){ + +},{}],13:[function(require,module,exports){ +module.exports = function (xs, fn) { + var res = []; + for (var i = 0; i < xs.length; i++) { + var x = fn(xs[i], i); + if (isArray(x)) res.push.apply(res, x); + else res.push(x); + } + return res; +}; + +var isArray = Array.isArray || function (xs) { + return Object.prototype.toString.call(xs) === '[object Array]'; +}; + +},{}],14:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +function EventEmitter() { + this._events = this._events || {}; + this._maxListeners = this._maxListeners || undefined; +} +module.exports = EventEmitter; + +// Backwards-compat with node 0.10.x +EventEmitter.EventEmitter = EventEmitter; + +EventEmitter.prototype._events = undefined; +EventEmitter.prototype._maxListeners = undefined; + +// By default EventEmitters will print a warning if more than 10 listeners are +// added to it. This is a useful default which helps finding memory leaks. +EventEmitter.defaultMaxListeners = 10; + +// Obviously not all Emitters should be limited to 10. This function allows +// that to be increased. Set to zero for unlimited. +EventEmitter.prototype.setMaxListeners = function(n) { + if (!isNumber(n) || n < 0 || isNaN(n)) + throw TypeError('n must be a positive number'); + this._maxListeners = n; + return this; +}; + +EventEmitter.prototype.emit = function(type) { + var er, handler, len, args, i, listeners; + + if (!this._events) + this._events = {}; + + // If there is no 'error' event listener then throw. + if (type === 'error') { + if (!this._events.error || + (isObject(this._events.error) && !this._events.error.length)) { + er = arguments[1]; + if (er instanceof Error) { + throw er; // Unhandled 'error' event + } + throw TypeError('Uncaught, unspecified "error" event.'); + } + } + + handler = this._events[type]; + + if (isUndefined(handler)) + return false; + + if (isFunction(handler)) { + switch (arguments.length) { + // fast cases + case 1: + handler.call(this); + break; + case 2: + handler.call(this, arguments[1]); + break; + case 3: + handler.call(this, arguments[1], arguments[2]); + break; + // slower + default: + len = arguments.length; + args = new Array(len - 1); + for (i = 1; i < len; i++) + args[i - 1] = arguments[i]; + handler.apply(this, args); + } + } else if (isObject(handler)) { + len = arguments.length; + args = new Array(len - 1); + for (i = 1; i < len; i++) + args[i - 1] = arguments[i]; + + listeners = handler.slice(); + len = listeners.length; + for (i = 0; i < len; i++) + listeners[i].apply(this, args); + } + + return true; +}; + +EventEmitter.prototype.addListener = function(type, listener) { + var m; + + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + if (!this._events) + this._events = {}; + + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (this._events.newListener) + this.emit('newListener', type, + isFunction(listener.listener) ? + listener.listener : listener); + + if (!this._events[type]) + // Optimize the case of one listener. Don't need the extra array object. + this._events[type] = listener; + else if (isObject(this._events[type])) + // If we've already got an array, just append. + this._events[type].push(listener); + else + // Adding the second element, need to change to array. + this._events[type] = [this._events[type], listener]; + + // Check for listener leak + if (isObject(this._events[type]) && !this._events[type].warned) { + var m; + if (!isUndefined(this._maxListeners)) { + m = this._maxListeners; + } else { + m = EventEmitter.defaultMaxListeners; + } + + if (m && m > 0 && this._events[type].length > m) { + this._events[type].warned = true; + console.error('(node) warning: possible EventEmitter memory ' + + 'leak detected. %d listeners added. ' + + 'Use emitter.setMaxListeners() to increase limit.', + this._events[type].length); + if (typeof console.trace === 'function') { + // not supported in IE 10 + console.trace(); + } + } + } + + return this; +}; + +EventEmitter.prototype.on = EventEmitter.prototype.addListener; + +EventEmitter.prototype.once = function(type, listener) { + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + var fired = false; + + function g() { + this.removeListener(type, g); + + if (!fired) { + fired = true; + listener.apply(this, arguments); + } + } + + g.listener = listener; + this.on(type, g); + + return this; +}; + +// emits a 'removeListener' event iff the listener was removed +EventEmitter.prototype.removeListener = function(type, listener) { + var list, position, length, i; + + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + if (!this._events || !this._events[type]) + return this; + + list = this._events[type]; + length = list.length; + position = -1; + + if (list === listener || + (isFunction(list.listener) && list.listener === listener)) { + delete this._events[type]; + if (this._events.removeListener) + this.emit('removeListener', type, listener); + + } else if (isObject(list)) { + for (i = length; i-- > 0;) { + if (list[i] === listener || + (list[i].listener && list[i].listener === listener)) { + position = i; + break; + } + } + + if (position < 0) + return this; + + if (list.length === 1) { + list.length = 0; + delete this._events[type]; + } else { + list.splice(position, 1); + } + + if (this._events.removeListener) + this.emit('removeListener', type, listener); + } + + return this; +}; + +EventEmitter.prototype.removeAllListeners = function(type) { + var key, listeners; + + if (!this._events) + return this; + + // not listening for removeListener, no need to emit + if (!this._events.removeListener) { + if (arguments.length === 0) + this._events = {}; + else if (this._events[type]) + delete this._events[type]; + return this; + } + + // emit removeListener for all listeners on all events + if (arguments.length === 0) { + for (key in this._events) { + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = {}; + return this; + } + + listeners = this._events[type]; + + if (isFunction(listeners)) { + this.removeListener(type, listeners); + } else { + // LIFO order + while (listeners.length) + this.removeListener(type, listeners[listeners.length - 1]); + } + delete this._events[type]; + + return this; +}; + +EventEmitter.prototype.listeners = function(type) { + var ret; + if (!this._events || !this._events[type]) + ret = []; + else if (isFunction(this._events[type])) + ret = [this._events[type]]; + else + ret = this._events[type].slice(); + return ret; +}; + +EventEmitter.listenerCount = function(emitter, type) { + var ret; + if (!emitter._events || !emitter._events[type]) + ret = 0; + else if (isFunction(emitter._events[type])) + ret = 1; + else + ret = emitter._events[type].length; + return ret; +}; + +function isFunction(arg) { + return typeof arg === 'function'; +} + +function isNumber(arg) { + return typeof arg === 'number'; +} + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} + +function isUndefined(arg) { + return arg === void 0; +} + +},{}],15:[function(require,module,exports){ +(function (process){ +exports.alphasort = alphasort +exports.alphasorti = alphasorti +exports.setopts = setopts +exports.ownProp = ownProp +exports.makeAbs = makeAbs +exports.finish = finish +exports.mark = mark +exports.isIgnored = isIgnored +exports.childrenIgnored = childrenIgnored + +function ownProp (obj, field) { + return Object.prototype.hasOwnProperty.call(obj, field) +} + +var path = require("path") +var minimatch = require("minimatch") +var isAbsolute = require("path-is-absolute") +var Minimatch = minimatch.Minimatch + +function alphasorti (a, b) { + return a.toLowerCase().localeCompare(b.toLowerCase()) +} + +function alphasort (a, b) { + return a.localeCompare(b) +} + +function setupIgnores (self, options) { + self.ignore = options.ignore || [] + + if (!Array.isArray(self.ignore)) + self.ignore = [self.ignore] + + if (self.ignore.length) { + self.ignore = self.ignore.map(ignoreMap) + } +} + +function ignoreMap (pattern) { + var gmatcher = null + if (pattern.slice(-3) === '/**') { + var gpattern = pattern.replace(/(\/\*\*)+$/, '') + gmatcher = new Minimatch(gpattern) + } + + return { + matcher: new Minimatch(pattern), + gmatcher: gmatcher + } +} + +function setopts (self, pattern, options) { + if (!options) + options = {} + + // base-matching: just use globstar for that. + if (options.matchBase && -1 === pattern.indexOf("/")) { + if (options.noglobstar) { + throw new Error("base matching requires globstar") + } + pattern = "**/" + pattern + } + + self.silent = !!options.silent + self.pattern = pattern + self.strict = options.strict !== false + self.realpath = !!options.realpath + self.realpathCache = options.realpathCache || Object.create(null) + self.follow = !!options.follow + self.dot = !!options.dot + self.mark = !!options.mark + self.nodir = !!options.nodir + if (self.nodir) + self.mark = true + self.sync = !!options.sync + self.nounique = !!options.nounique + self.nonull = !!options.nonull + self.nosort = !!options.nosort + self.nocase = !!options.nocase + self.stat = !!options.stat + self.noprocess = !!options.noprocess + + self.maxLength = options.maxLength || Infinity + self.cache = options.cache || Object.create(null) + self.statCache = options.statCache || Object.create(null) + self.symlinks = options.symlinks || Object.create(null) + + setupIgnores(self, options) + + self.changedCwd = false + var cwd = process.cwd() + if (!ownProp(options, "cwd")) + self.cwd = cwd + else { + self.cwd = options.cwd + self.changedCwd = path.resolve(options.cwd) !== cwd + } + + self.root = options.root || path.resolve(self.cwd, "/") + self.root = path.resolve(self.root) + if (process.platform === "win32") + self.root = self.root.replace(/\\/g, "/") + + self.nomount = !!options.nomount + + // disable comments and negation unless the user explicitly + // passes in false as the option. + options.nonegate = options.nonegate === false ? false : true + options.nocomment = options.nocomment === false ? false : true + deprecationWarning(options) + + self.minimatch = new Minimatch(pattern, options) + self.options = self.minimatch.options +} + +// TODO(isaacs): remove entirely in v6 +// exported to reset in tests +exports.deprecationWarned +function deprecationWarning(options) { + if (!options.nonegate || !options.nocomment) { + if (process.noDeprecation !== true && !exports.deprecationWarned) { + var msg = 'glob WARNING: comments and negation will be disabled in v6' + if (process.throwDeprecation) + throw new Error(msg) + else if (process.traceDeprecation) + console.trace(msg) + else + console.error(msg) + + exports.deprecationWarned = true + } + } +} + +function finish (self) { + var nou = self.nounique + var all = nou ? [] : Object.create(null) + + for (var i = 0, l = self.matches.length; i < l; i ++) { + var matches = self.matches[i] + if (!matches || Object.keys(matches).length === 0) { + if (self.nonull) { + // do like the shell, and spit out the literal glob + var literal = self.minimatch.globSet[i] + if (nou) + all.push(literal) + else + all[literal] = true + } + } else { + // had matches + var m = Object.keys(matches) + if (nou) + all.push.apply(all, m) + else + m.forEach(function (m) { + all[m] = true + }) + } + } + + if (!nou) + all = Object.keys(all) + + if (!self.nosort) + all = all.sort(self.nocase ? alphasorti : alphasort) + + // at *some* point we statted all of these + if (self.mark) { + for (var i = 0; i < all.length; i++) { + all[i] = self._mark(all[i]) + } + if (self.nodir) { + all = all.filter(function (e) { + return !(/\/$/.test(e)) + }) + } + } + + if (self.ignore.length) + all = all.filter(function(m) { + return !isIgnored(self, m) + }) + + self.found = all +} + +function mark (self, p) { + var abs = makeAbs(self, p) + var c = self.cache[abs] + var m = p + if (c) { + var isDir = c === 'DIR' || Array.isArray(c) + var slash = p.slice(-1) === '/' + + if (isDir && !slash) + m += '/' + else if (!isDir && slash) + m = m.slice(0, -1) + + if (m !== p) { + var mabs = makeAbs(self, m) + self.statCache[mabs] = self.statCache[abs] + self.cache[mabs] = self.cache[abs] + } + } + + return m +} + +// lotta situps... +function makeAbs (self, f) { + var abs = f + if (f.charAt(0) === '/') { + abs = path.join(self.root, f) + } else if (isAbsolute(f) || f === '') { + abs = f + } else if (self.changedCwd) { + abs = path.resolve(self.cwd, f) + } else { + abs = path.resolve(f) + } + return abs +} + + +// Return true, if pattern ends with globstar '**', for the accompanying parent directory. +// Ex:- If node_modules/** is the pattern, add 'node_modules' to ignore list along with it's contents +function isIgnored (self, path) { + if (!self.ignore.length) + return false + + return self.ignore.some(function(item) { + return item.matcher.match(path) || !!(item.gmatcher && item.gmatcher.match(path)) + }) +} + +function childrenIgnored (self, path) { + if (!self.ignore.length) + return false + + return self.ignore.some(function(item) { + return !!(item.gmatcher && item.gmatcher.match(path)) + }) +} + +}).call(this,require('_process')) +},{"_process":24,"minimatch":20,"path":22,"path-is-absolute":23}],16:[function(require,module,exports){ +(function (process){ +// Approach: +// +// 1. Get the minimatch set +// 2. For each pattern in the set, PROCESS(pattern, false) +// 3. Store matches per-set, then uniq them +// +// PROCESS(pattern, inGlobStar) +// Get the first [n] items from pattern that are all strings +// Join these together. This is PREFIX. +// If there is no more remaining, then stat(PREFIX) and +// add to matches if it succeeds. END. +// +// If inGlobStar and PREFIX is symlink and points to dir +// set ENTRIES = [] +// else readdir(PREFIX) as ENTRIES +// If fail, END +// +// with ENTRIES +// If pattern[n] is GLOBSTAR +// // handle the case where the globstar match is empty +// // by pruning it out, and testing the resulting pattern +// PROCESS(pattern[0..n] + pattern[n+1 .. $], false) +// // handle other cases. +// for ENTRY in ENTRIES (not dotfiles) +// // attach globstar + tail onto the entry +// // Mark that this entry is a globstar match +// PROCESS(pattern[0..n] + ENTRY + pattern[n .. $], true) +// +// else // not globstar +// for ENTRY in ENTRIES (not dotfiles, unless pattern[n] is dot) +// Test ENTRY against pattern[n] +// If fails, continue +// If passes, PROCESS(pattern[0..n] + item + pattern[n+1 .. $]) +// +// Caveat: +// Cache all stats and readdirs results to minimize syscall. Since all +// we ever care about is existence and directory-ness, we can just keep +// `true` for files, and [children,...] for directories, or `false` for +// things that don't exist. + +module.exports = glob + +var fs = require('fs') +var minimatch = require('minimatch') +var Minimatch = minimatch.Minimatch +var inherits = require('inherits') +var EE = require('events').EventEmitter +var path = require('path') +var assert = require('assert') +var isAbsolute = require('path-is-absolute') +var globSync = require('./sync.js') +var common = require('./common.js') +var alphasort = common.alphasort +var alphasorti = common.alphasorti +var setopts = common.setopts +var ownProp = common.ownProp +var inflight = require('inflight') +var util = require('util') +var childrenIgnored = common.childrenIgnored +var isIgnored = common.isIgnored + +var once = require('once') + +function glob (pattern, options, cb) { + if (typeof options === 'function') cb = options, options = {} + if (!options) options = {} + + if (options.sync) { + if (cb) + throw new TypeError('callback provided to sync glob') + return globSync(pattern, options) + } + + return new Glob(pattern, options, cb) +} + +glob.sync = globSync +var GlobSync = glob.GlobSync = globSync.GlobSync + +// old api surface +glob.glob = glob + +glob.hasMagic = function (pattern, options_) { + var options = util._extend({}, options_) + options.noprocess = true + + var g = new Glob(pattern, options) + var set = g.minimatch.set + if (set.length > 1) + return true + + for (var j = 0; j < set[0].length; j++) { + if (typeof set[0][j] !== 'string') + return true + } + + return false +} + +glob.Glob = Glob +inherits(Glob, EE) +function Glob (pattern, options, cb) { + if (typeof options === 'function') { + cb = options + options = null + } + + if (options && options.sync) { + if (cb) + throw new TypeError('callback provided to sync glob') + return new GlobSync(pattern, options) + } + + if (!(this instanceof Glob)) + return new Glob(pattern, options, cb) + + setopts(this, pattern, options) + this._didRealPath = false + + // process each pattern in the minimatch set + var n = this.minimatch.set.length + + // The matches are stored as {: true,...} so that + // duplicates are automagically pruned. + // Later, we do an Object.keys() on these. + // Keep them as a list so we can fill in when nonull is set. + this.matches = new Array(n) + + if (typeof cb === 'function') { + cb = once(cb) + this.on('error', cb) + this.on('end', function (matches) { + cb(null, matches) + }) + } + + var self = this + var n = this.minimatch.set.length + this._processing = 0 + this.matches = new Array(n) + + this._emitQueue = [] + this._processQueue = [] + this.paused = false + + if (this.noprocess) + return this + + if (n === 0) + return done() + + for (var i = 0; i < n; i ++) { + this._process(this.minimatch.set[i], i, false, done) + } + + function done () { + --self._processing + if (self._processing <= 0) + self._finish() + } +} + +Glob.prototype._finish = function () { + assert(this instanceof Glob) + if (this.aborted) + return + + if (this.realpath && !this._didRealpath) + return this._realpath() + + common.finish(this) + this.emit('end', this.found) +} + +Glob.prototype._realpath = function () { + if (this._didRealpath) + return + + this._didRealpath = true + + var n = this.matches.length + if (n === 0) + return this._finish() + + var self = this + for (var i = 0; i < this.matches.length; i++) + this._realpathSet(i, next) + + function next () { + if (--n === 0) + self._finish() + } +} + +Glob.prototype._realpathSet = function (index, cb) { + var matchset = this.matches[index] + if (!matchset) + return cb() + + var found = Object.keys(matchset) + var self = this + var n = found.length + + if (n === 0) + return cb() + + var set = this.matches[index] = Object.create(null) + found.forEach(function (p, i) { + // If there's a problem with the stat, then it means that + // one or more of the links in the realpath couldn't be + // resolved. just return the abs value in that case. + p = self._makeAbs(p) + fs.realpath(p, self.realpathCache, function (er, real) { + if (!er) + set[real] = true + else if (er.syscall === 'stat') + set[p] = true + else + self.emit('error', er) // srsly wtf right here + + if (--n === 0) { + self.matches[index] = set + cb() + } + }) + }) +} + +Glob.prototype._mark = function (p) { + return common.mark(this, p) +} + +Glob.prototype._makeAbs = function (f) { + return common.makeAbs(this, f) +} + +Glob.prototype.abort = function () { + this.aborted = true + this.emit('abort') +} + +Glob.prototype.pause = function () { + if (!this.paused) { + this.paused = true + this.emit('pause') + } +} + +Glob.prototype.resume = function () { + if (this.paused) { + this.emit('resume') + this.paused = false + if (this._emitQueue.length) { + var eq = this._emitQueue.slice(0) + this._emitQueue.length = 0 + for (var i = 0; i < eq.length; i ++) { + var e = eq[i] + this._emitMatch(e[0], e[1]) + } + } + if (this._processQueue.length) { + var pq = this._processQueue.slice(0) + this._processQueue.length = 0 + for (var i = 0; i < pq.length; i ++) { + var p = pq[i] + this._processing-- + this._process(p[0], p[1], p[2], p[3]) + } + } + } +} + +Glob.prototype._process = function (pattern, index, inGlobStar, cb) { + assert(this instanceof Glob) + assert(typeof cb === 'function') + + if (this.aborted) + return + + this._processing++ + if (this.paused) { + this._processQueue.push([pattern, index, inGlobStar, cb]) + return + } + + //console.error('PROCESS %d', this._processing, pattern) + + // Get the first [n] parts of pattern that are all strings. + var n = 0 + while (typeof pattern[n] === 'string') { + n ++ + } + // now n is the index of the first one that is *not* a string. + + // see if there's anything else + var prefix + switch (n) { + // if not, then this is rather simple + case pattern.length: + this._processSimple(pattern.join('/'), index, cb) + return + + case 0: + // pattern *starts* with some non-trivial item. + // going to readdir(cwd), but not include the prefix in matches. + prefix = null + break + + default: + // pattern has some string bits in the front. + // whatever it starts with, whether that's 'absolute' like /foo/bar, + // or 'relative' like '../baz' + prefix = pattern.slice(0, n).join('/') + break + } + + var remain = pattern.slice(n) + + // get the list of entries. + var read + if (prefix === null) + read = '.' + else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) { + if (!prefix || !isAbsolute(prefix)) + prefix = '/' + prefix + read = prefix + } else + read = prefix + + var abs = this._makeAbs(read) + + //if ignored, skip _processing + if (childrenIgnored(this, read)) + return cb() + + var isGlobStar = remain[0] === minimatch.GLOBSTAR + if (isGlobStar) + this._processGlobStar(prefix, read, abs, remain, index, inGlobStar, cb) + else + this._processReaddir(prefix, read, abs, remain, index, inGlobStar, cb) +} + +Glob.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar, cb) { + var self = this + this._readdir(abs, inGlobStar, function (er, entries) { + return self._processReaddir2(prefix, read, abs, remain, index, inGlobStar, entries, cb) + }) +} + +Glob.prototype._processReaddir2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) { + + // if the abs isn't a dir, then nothing can match! + if (!entries) + return cb() + + // It will only match dot entries if it starts with a dot, or if + // dot is set. Stuff like @(.foo|.bar) isn't allowed. + var pn = remain[0] + var negate = !!this.minimatch.negate + var rawGlob = pn._glob + var dotOk = this.dot || rawGlob.charAt(0) === '.' + + var matchedEntries = [] + for (var i = 0; i < entries.length; i++) { + var e = entries[i] + if (e.charAt(0) !== '.' || dotOk) { + var m + if (negate && !prefix) { + m = !e.match(pn) + } else { + m = e.match(pn) + } + if (m) + matchedEntries.push(e) + } + } + + //console.error('prd2', prefix, entries, remain[0]._glob, matchedEntries) + + var len = matchedEntries.length + // If there are no matched entries, then nothing matches. + if (len === 0) + return cb() + + // if this is the last remaining pattern bit, then no need for + // an additional stat *unless* the user has specified mark or + // stat explicitly. We know they exist, since readdir returned + // them. + + if (remain.length === 1 && !this.mark && !this.stat) { + if (!this.matches[index]) + this.matches[index] = Object.create(null) + + for (var i = 0; i < len; i ++) { + var e = matchedEntries[i] + if (prefix) { + if (prefix !== '/') + e = prefix + '/' + e + else + e = prefix + e + } + + if (e.charAt(0) === '/' && !this.nomount) { + e = path.join(this.root, e) + } + this._emitMatch(index, e) + } + // This was the last one, and no stats were needed + return cb() + } + + // now test all matched entries as stand-ins for that part + // of the pattern. + remain.shift() + for (var i = 0; i < len; i ++) { + var e = matchedEntries[i] + var newPattern + if (prefix) { + if (prefix !== '/') + e = prefix + '/' + e + else + e = prefix + e + } + this._process([e].concat(remain), index, inGlobStar, cb) + } + cb() +} + +Glob.prototype._emitMatch = function (index, e) { + if (this.aborted) + return + + if (this.matches[index][e]) + return + + if (isIgnored(this, e)) + return + + if (this.paused) { + this._emitQueue.push([index, e]) + return + } + + var abs = this._makeAbs(e) + + if (this.nodir) { + var c = this.cache[abs] + if (c === 'DIR' || Array.isArray(c)) + return + } + + if (this.mark) + e = this._mark(e) + + this.matches[index][e] = true + + var st = this.statCache[abs] + if (st) + this.emit('stat', e, st) + + this.emit('match', e) +} + +Glob.prototype._readdirInGlobStar = function (abs, cb) { + if (this.aborted) + return + + // follow all symlinked directories forever + // just proceed as if this is a non-globstar situation + if (this.follow) + return this._readdir(abs, false, cb) + + var lstatkey = 'lstat\0' + abs + var self = this + var lstatcb = inflight(lstatkey, lstatcb_) + + if (lstatcb) + fs.lstat(abs, lstatcb) + + function lstatcb_ (er, lstat) { + if (er) + return cb() + + var isSym = lstat.isSymbolicLink() + self.symlinks[abs] = isSym + + // If it's not a symlink or a dir, then it's definitely a regular file. + // don't bother doing a readdir in that case. + if (!isSym && !lstat.isDirectory()) { + self.cache[abs] = 'FILE' + cb() + } else + self._readdir(abs, false, cb) + } +} + +Glob.prototype._readdir = function (abs, inGlobStar, cb) { + if (this.aborted) + return + + cb = inflight('readdir\0'+abs+'\0'+inGlobStar, cb) + if (!cb) + return + + //console.error('RD %j %j', +inGlobStar, abs) + if (inGlobStar && !ownProp(this.symlinks, abs)) + return this._readdirInGlobStar(abs, cb) + + if (ownProp(this.cache, abs)) { + var c = this.cache[abs] + if (!c || c === 'FILE') + return cb() + + if (Array.isArray(c)) + return cb(null, c) + } + + var self = this + fs.readdir(abs, readdirCb(this, abs, cb)) +} + +function readdirCb (self, abs, cb) { + return function (er, entries) { + if (er) + self._readdirError(abs, er, cb) + else + self._readdirEntries(abs, entries, cb) + } +} + +Glob.prototype._readdirEntries = function (abs, entries, cb) { + if (this.aborted) + return + + // if we haven't asked to stat everything, then just + // assume that everything in there exists, so we can avoid + // having to stat it a second time. + if (!this.mark && !this.stat) { + for (var i = 0; i < entries.length; i ++) { + var e = entries[i] + if (abs === '/') + e = abs + e + else + e = abs + '/' + e + this.cache[e] = true + } + } + + this.cache[abs] = entries + return cb(null, entries) +} + +Glob.prototype._readdirError = function (f, er, cb) { + if (this.aborted) + return + + // handle errors, and cache the information + switch (er.code) { + case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205 + case 'ENOTDIR': // totally normal. means it *does* exist. + this.cache[this._makeAbs(f)] = 'FILE' + break + + case 'ENOENT': // not terribly unusual + case 'ELOOP': + case 'ENAMETOOLONG': + case 'UNKNOWN': + this.cache[this._makeAbs(f)] = false + break + + default: // some unusual error. Treat as failure. + this.cache[this._makeAbs(f)] = false + if (this.strict) { + this.emit('error', er) + // If the error is handled, then we abort + // if not, we threw out of here + this.abort() + } + if (!this.silent) + console.error('glob error', er) + break + } + + return cb() +} + +Glob.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar, cb) { + var self = this + this._readdir(abs, inGlobStar, function (er, entries) { + self._processGlobStar2(prefix, read, abs, remain, index, inGlobStar, entries, cb) + }) +} + + +Glob.prototype._processGlobStar2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) { + //console.error('pgs2', prefix, remain[0], entries) + + // no entries means not a dir, so it can never have matches + // foo.txt/** doesn't match foo.txt + if (!entries) + return cb() + + // test without the globstar, and with every child both below + // and replacing the globstar. + var remainWithoutGlobStar = remain.slice(1) + var gspref = prefix ? [ prefix ] : [] + var noGlobStar = gspref.concat(remainWithoutGlobStar) + + // the noGlobStar pattern exits the inGlobStar state + this._process(noGlobStar, index, false, cb) + + var isSym = this.symlinks[abs] + var len = entries.length + + // If it's a symlink, and we're in a globstar, then stop + if (isSym && inGlobStar) + return cb() + + for (var i = 0; i < len; i++) { + var e = entries[i] + if (e.charAt(0) === '.' && !this.dot) + continue + + // these two cases enter the inGlobStar state + var instead = gspref.concat(entries[i], remainWithoutGlobStar) + this._process(instead, index, true, cb) + + var below = gspref.concat(entries[i], remain) + this._process(below, index, true, cb) + } + + cb() +} + +Glob.prototype._processSimple = function (prefix, index, cb) { + // XXX review this. Shouldn't it be doing the mounting etc + // before doing stat? kinda weird? + var self = this + this._stat(prefix, function (er, exists) { + self._processSimple2(prefix, index, er, exists, cb) + }) +} +Glob.prototype._processSimple2 = function (prefix, index, er, exists, cb) { + + //console.error('ps2', prefix, exists) + + if (!this.matches[index]) + this.matches[index] = Object.create(null) + + // If it doesn't exist, then just mark the lack of results + if (!exists) + return cb() + + if (prefix && isAbsolute(prefix) && !this.nomount) { + var trail = /[\/\\]$/.test(prefix) + if (prefix.charAt(0) === '/') { + prefix = path.join(this.root, prefix) + } else { + prefix = path.resolve(this.root, prefix) + if (trail) + prefix += '/' + } + } + + if (process.platform === 'win32') + prefix = prefix.replace(/\\/g, '/') + + // Mark this as a match + this._emitMatch(index, prefix) + cb() +} + +// Returns either 'DIR', 'FILE', or false +Glob.prototype._stat = function (f, cb) { + var abs = this._makeAbs(f) + var needDir = f.slice(-1) === '/' + + if (f.length > this.maxLength) + return cb() + + if (!this.stat && ownProp(this.cache, abs)) { + var c = this.cache[abs] + + if (Array.isArray(c)) + c = 'DIR' + + // It exists, but maybe not how we need it + if (!needDir || c === 'DIR') + return cb(null, c) + + if (needDir && c === 'FILE') + return cb() + + // otherwise we have to stat, because maybe c=true + // if we know it exists, but not what it is. + } + + var exists + var stat = this.statCache[abs] + if (stat !== undefined) { + if (stat === false) + return cb(null, stat) + else { + var type = stat.isDirectory() ? 'DIR' : 'FILE' + if (needDir && type === 'FILE') + return cb() + else + return cb(null, type, stat) + } + } + + var self = this + var statcb = inflight('stat\0' + abs, lstatcb_) + if (statcb) + fs.lstat(abs, statcb) + + function lstatcb_ (er, lstat) { + if (lstat && lstat.isSymbolicLink()) { + // If it's a symlink, then treat it as the target, unless + // the target does not exist, then treat it as a file. + return fs.stat(abs, function (er, stat) { + if (er) + self._stat2(f, abs, null, lstat, cb) + else + self._stat2(f, abs, er, stat, cb) + }) + } else { + self._stat2(f, abs, er, lstat, cb) + } + } +} + +Glob.prototype._stat2 = function (f, abs, er, stat, cb) { + if (er) { + this.statCache[abs] = false + return cb() + } + + var needDir = f.slice(-1) === '/' + this.statCache[abs] = stat + + if (abs.slice(-1) === '/' && !stat.isDirectory()) + return cb(null, false, stat) + + var c = stat.isDirectory() ? 'DIR' : 'FILE' + this.cache[abs] = this.cache[abs] || c + + if (needDir && c !== 'DIR') + return cb() + + return cb(null, c, stat) +} + +}).call(this,require('_process')) +},{"./common.js":15,"./sync.js":17,"_process":24,"assert":9,"events":14,"fs":12,"inflight":18,"inherits":19,"minimatch":20,"once":21,"path":22,"path-is-absolute":23,"util":28}],17:[function(require,module,exports){ +(function (process){ +module.exports = globSync +globSync.GlobSync = GlobSync + +var fs = require('fs') +var minimatch = require('minimatch') +var Minimatch = minimatch.Minimatch +var Glob = require('./glob.js').Glob +var util = require('util') +var path = require('path') +var assert = require('assert') +var isAbsolute = require('path-is-absolute') +var common = require('./common.js') +var alphasort = common.alphasort +var alphasorti = common.alphasorti +var setopts = common.setopts +var ownProp = common.ownProp +var childrenIgnored = common.childrenIgnored + +function globSync (pattern, options) { + if (typeof options === 'function' || arguments.length === 3) + throw new TypeError('callback provided to sync glob\n'+ + 'See: https://github.com/isaacs/node-glob/issues/167') + + return new GlobSync(pattern, options).found +} + +function GlobSync (pattern, options) { + if (!pattern) + throw new Error('must provide pattern') + + if (typeof options === 'function' || arguments.length === 3) + throw new TypeError('callback provided to sync glob\n'+ + 'See: https://github.com/isaacs/node-glob/issues/167') + + if (!(this instanceof GlobSync)) + return new GlobSync(pattern, options) + + setopts(this, pattern, options) + + if (this.noprocess) + return this + + var n = this.minimatch.set.length + this.matches = new Array(n) + for (var i = 0; i < n; i ++) { + this._process(this.minimatch.set[i], i, false) + } + this._finish() +} + +GlobSync.prototype._finish = function () { + assert(this instanceof GlobSync) + if (this.realpath) { + var self = this + this.matches.forEach(function (matchset, index) { + var set = self.matches[index] = Object.create(null) + for (var p in matchset) { + try { + p = self._makeAbs(p) + var real = fs.realpathSync(p, self.realpathCache) + set[real] = true + } catch (er) { + if (er.syscall === 'stat') + set[self._makeAbs(p)] = true + else + throw er + } + } + }) + } + common.finish(this) +} + + +GlobSync.prototype._process = function (pattern, index, inGlobStar) { + assert(this instanceof GlobSync) + + // Get the first [n] parts of pattern that are all strings. + var n = 0 + while (typeof pattern[n] === 'string') { + n ++ + } + // now n is the index of the first one that is *not* a string. + + // See if there's anything else + var prefix + switch (n) { + // if not, then this is rather simple + case pattern.length: + this._processSimple(pattern.join('/'), index) + return + + case 0: + // pattern *starts* with some non-trivial item. + // going to readdir(cwd), but not include the prefix in matches. + prefix = null + break + + default: + // pattern has some string bits in the front. + // whatever it starts with, whether that's 'absolute' like /foo/bar, + // or 'relative' like '../baz' + prefix = pattern.slice(0, n).join('/') + break + } + + var remain = pattern.slice(n) + + // get the list of entries. + var read + if (prefix === null) + read = '.' + else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) { + if (!prefix || !isAbsolute(prefix)) + prefix = '/' + prefix + read = prefix + } else + read = prefix + + var abs = this._makeAbs(read) + + //if ignored, skip processing + if (childrenIgnored(this, read)) + return + + var isGlobStar = remain[0] === minimatch.GLOBSTAR + if (isGlobStar) + this._processGlobStar(prefix, read, abs, remain, index, inGlobStar) + else + this._processReaddir(prefix, read, abs, remain, index, inGlobStar) +} + + +GlobSync.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar) { + var entries = this._readdir(abs, inGlobStar) + + // if the abs isn't a dir, then nothing can match! + if (!entries) + return + + // It will only match dot entries if it starts with a dot, or if + // dot is set. Stuff like @(.foo|.bar) isn't allowed. + var pn = remain[0] + var negate = !!this.minimatch.negate + var rawGlob = pn._glob + var dotOk = this.dot || rawGlob.charAt(0) === '.' + + var matchedEntries = [] + for (var i = 0; i < entries.length; i++) { + var e = entries[i] + if (e.charAt(0) !== '.' || dotOk) { + var m + if (negate && !prefix) { + m = !e.match(pn) + } else { + m = e.match(pn) + } + if (m) + matchedEntries.push(e) + } + } + + var len = matchedEntries.length + // If there are no matched entries, then nothing matches. + if (len === 0) + return + + // if this is the last remaining pattern bit, then no need for + // an additional stat *unless* the user has specified mark or + // stat explicitly. We know they exist, since readdir returned + // them. + + if (remain.length === 1 && !this.mark && !this.stat) { + if (!this.matches[index]) + this.matches[index] = Object.create(null) + + for (var i = 0; i < len; i ++) { + var e = matchedEntries[i] + if (prefix) { + if (prefix.slice(-1) !== '/') + e = prefix + '/' + e + else + e = prefix + e + } + + if (e.charAt(0) === '/' && !this.nomount) { + e = path.join(this.root, e) + } + this.matches[index][e] = true + } + // This was the last one, and no stats were needed + return + } + + // now test all matched entries as stand-ins for that part + // of the pattern. + remain.shift() + for (var i = 0; i < len; i ++) { + var e = matchedEntries[i] + var newPattern + if (prefix) + newPattern = [prefix, e] + else + newPattern = [e] + this._process(newPattern.concat(remain), index, inGlobStar) + } +} + + +GlobSync.prototype._emitMatch = function (index, e) { + var abs = this._makeAbs(e) + if (this.mark) + e = this._mark(e) + + if (this.matches[index][e]) + return + + if (this.nodir) { + var c = this.cache[this._makeAbs(e)] + if (c === 'DIR' || Array.isArray(c)) + return + } + + this.matches[index][e] = true + if (this.stat) + this._stat(e) +} + + +GlobSync.prototype._readdirInGlobStar = function (abs) { + // follow all symlinked directories forever + // just proceed as if this is a non-globstar situation + if (this.follow) + return this._readdir(abs, false) + + var entries + var lstat + var stat + try { + lstat = fs.lstatSync(abs) + } catch (er) { + // lstat failed, doesn't exist + return null + } + + var isSym = lstat.isSymbolicLink() + this.symlinks[abs] = isSym + + // If it's not a symlink or a dir, then it's definitely a regular file. + // don't bother doing a readdir in that case. + if (!isSym && !lstat.isDirectory()) + this.cache[abs] = 'FILE' + else + entries = this._readdir(abs, false) + + return entries +} + +GlobSync.prototype._readdir = function (abs, inGlobStar) { + var entries + + if (inGlobStar && !ownProp(this.symlinks, abs)) + return this._readdirInGlobStar(abs) + + if (ownProp(this.cache, abs)) { + var c = this.cache[abs] + if (!c || c === 'FILE') + return null + + if (Array.isArray(c)) + return c + } + + try { + return this._readdirEntries(abs, fs.readdirSync(abs)) + } catch (er) { + this._readdirError(abs, er) + return null + } +} + +GlobSync.prototype._readdirEntries = function (abs, entries) { + // if we haven't asked to stat everything, then just + // assume that everything in there exists, so we can avoid + // having to stat it a second time. + if (!this.mark && !this.stat) { + for (var i = 0; i < entries.length; i ++) { + var e = entries[i] + if (abs === '/') + e = abs + e + else + e = abs + '/' + e + this.cache[e] = true + } + } + + this.cache[abs] = entries + + // mark and cache dir-ness + return entries +} + +GlobSync.prototype._readdirError = function (f, er) { + // handle errors, and cache the information + switch (er.code) { + case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205 + case 'ENOTDIR': // totally normal. means it *does* exist. + this.cache[this._makeAbs(f)] = 'FILE' + break + + case 'ENOENT': // not terribly unusual + case 'ELOOP': + case 'ENAMETOOLONG': + case 'UNKNOWN': + this.cache[this._makeAbs(f)] = false + break + + default: // some unusual error. Treat as failure. + this.cache[this._makeAbs(f)] = false + if (this.strict) + throw er + if (!this.silent) + console.error('glob error', er) + break + } +} + +GlobSync.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar) { + + var entries = this._readdir(abs, inGlobStar) + + // no entries means not a dir, so it can never have matches + // foo.txt/** doesn't match foo.txt + if (!entries) + return + + // test without the globstar, and with every child both below + // and replacing the globstar. + var remainWithoutGlobStar = remain.slice(1) + var gspref = prefix ? [ prefix ] : [] + var noGlobStar = gspref.concat(remainWithoutGlobStar) + + // the noGlobStar pattern exits the inGlobStar state + this._process(noGlobStar, index, false) + + var len = entries.length + var isSym = this.symlinks[abs] + + // If it's a symlink, and we're in a globstar, then stop + if (isSym && inGlobStar) + return + + for (var i = 0; i < len; i++) { + var e = entries[i] + if (e.charAt(0) === '.' && !this.dot) + continue + + // these two cases enter the inGlobStar state + var instead = gspref.concat(entries[i], remainWithoutGlobStar) + this._process(instead, index, true) + + var below = gspref.concat(entries[i], remain) + this._process(below, index, true) + } +} + +GlobSync.prototype._processSimple = function (prefix, index) { + // XXX review this. Shouldn't it be doing the mounting etc + // before doing stat? kinda weird? + var exists = this._stat(prefix) + + if (!this.matches[index]) + this.matches[index] = Object.create(null) + + // If it doesn't exist, then just mark the lack of results + if (!exists) + return + + if (prefix && isAbsolute(prefix) && !this.nomount) { + var trail = /[\/\\]$/.test(prefix) + if (prefix.charAt(0) === '/') { + prefix = path.join(this.root, prefix) + } else { + prefix = path.resolve(this.root, prefix) + if (trail) + prefix += '/' + } + } + + if (process.platform === 'win32') + prefix = prefix.replace(/\\/g, '/') + + // Mark this as a match + this.matches[index][prefix] = true +} + +// Returns either 'DIR', 'FILE', or false +GlobSync.prototype._stat = function (f) { + var abs = this._makeAbs(f) + var needDir = f.slice(-1) === '/' + + if (f.length > this.maxLength) + return false + + if (!this.stat && ownProp(this.cache, abs)) { + var c = this.cache[abs] + + if (Array.isArray(c)) + c = 'DIR' + + // It exists, but maybe not how we need it + if (!needDir || c === 'DIR') + return c + + if (needDir && c === 'FILE') + return false + + // otherwise we have to stat, because maybe c=true + // if we know it exists, but not what it is. + } + + var exists + var stat = this.statCache[abs] + if (!stat) { + var lstat + try { + lstat = fs.lstatSync(abs) + } catch (er) { + return false + } + + if (lstat.isSymbolicLink()) { + try { + stat = fs.statSync(abs) + } catch (er) { + stat = lstat + } + } else { + stat = lstat + } + } + + this.statCache[abs] = stat + + var c = stat.isDirectory() ? 'DIR' : 'FILE' + this.cache[abs] = this.cache[abs] || c + + if (needDir && c !== 'DIR') + return false + + return c +} + +GlobSync.prototype._mark = function (p) { + return common.mark(this, p) +} + +GlobSync.prototype._makeAbs = function (f) { + return common.makeAbs(this, f) +} + +}).call(this,require('_process')) +},{"./common.js":15,"./glob.js":16,"_process":24,"assert":9,"fs":12,"minimatch":20,"path":22,"path-is-absolute":23,"util":28}],18:[function(require,module,exports){ +(function (process){ +var wrappy = require('wrappy') +var reqs = Object.create(null) +var once = require('once') + +module.exports = wrappy(inflight) + +function inflight (key, cb) { + if (reqs[key]) { + reqs[key].push(cb) + return null + } else { + reqs[key] = [cb] + return makeres(key) + } +} + +function makeres (key) { + return once(function RES () { + var cbs = reqs[key] + var len = cbs.length + var args = slice(arguments) + + // XXX It's somewhat ambiguous whether a new callback added in this + // pass should be queued for later execution if something in the + // list of callbacks throws, or if it should just be discarded. + // However, it's such an edge case that it hardly matters, and either + // choice is likely as surprising as the other. + // As it happens, we do go ahead and schedule it for later execution. + try { + for (var i = 0; i < len; i++) { + cbs[i].apply(null, args) + } + } finally { + if (cbs.length > len) { + // added more in the interim. + // de-zalgo, just in case, but don't call again. + cbs.splice(0, len) + process.nextTick(function () { + RES.apply(null, args) + }) + } else { + delete reqs[key] + } + } + }) +} + +function slice (args) { + var length = args.length + var array = [] + + for (var i = 0; i < length; i++) array[i] = args[i] + return array +} + +}).call(this,require('_process')) +},{"_process":24,"once":21,"wrappy":29}],19:[function(require,module,exports){ +if (typeof Object.create === 'function') { + // implementation from standard node.js 'util' module + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + ctor.prototype = Object.create(superCtor.prototype, { + constructor: { + value: ctor, + enumerable: false, + writable: true, + configurable: true + } + }); + }; +} else { + // old school shim for old browsers + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + var TempCtor = function () {} + TempCtor.prototype = superCtor.prototype + ctor.prototype = new TempCtor() + ctor.prototype.constructor = ctor + } +} + +},{}],20:[function(require,module,exports){ +module.exports = minimatch +minimatch.Minimatch = Minimatch + +var path = { sep: '/' } +try { + path = require('path') +} catch (er) {} + +var GLOBSTAR = minimatch.GLOBSTAR = Minimatch.GLOBSTAR = {} +var expand = require('brace-expansion') + +var plTypes = { + '!': { open: '(?:(?!(?:', close: '))[^/]*?)'}, + '?': { open: '(?:', close: ')?' }, + '+': { open: '(?:', close: ')+' }, + '*': { open: '(?:', close: ')*' }, + '@': { open: '(?:', close: ')' } +} + +// any single thing other than / +// don't need to escape / when using new RegExp() +var qmark = '[^/]' + +// * => any number of characters +var star = qmark + '*?' + +// ** when dots are allowed. Anything goes, except .. and . +// not (^ or / followed by one or two dots followed by $ or /), +// followed by anything, any number of times. +var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?' + +// not a ^ or / followed by a dot, +// followed by anything, any number of times. +var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?' + +// characters that need to be escaped in RegExp. +var reSpecials = charSet('().*{}+?[]^$\\!') + +// "abc" -> { a:true, b:true, c:true } +function charSet (s) { + return s.split('').reduce(function (set, c) { + set[c] = true + return set + }, {}) +} + +// normalizes slashes. +var slashSplit = /\/+/ + +minimatch.filter = filter +function filter (pattern, options) { + options = options || {} + return function (p, i, list) { + return minimatch(p, pattern, options) + } +} + +function ext (a, b) { + a = a || {} + b = b || {} + var t = {} + Object.keys(b).forEach(function (k) { + t[k] = b[k] + }) + Object.keys(a).forEach(function (k) { + t[k] = a[k] + }) + return t +} + +minimatch.defaults = function (def) { + if (!def || !Object.keys(def).length) return minimatch + + var orig = minimatch + + var m = function minimatch (p, pattern, options) { + return orig.minimatch(p, pattern, ext(def, options)) + } + + m.Minimatch = function Minimatch (pattern, options) { + return new orig.Minimatch(pattern, ext(def, options)) + } + + return m +} + +Minimatch.defaults = function (def) { + if (!def || !Object.keys(def).length) return Minimatch + return minimatch.defaults(def).Minimatch +} + +function minimatch (p, pattern, options) { + if (typeof pattern !== 'string') { + throw new TypeError('glob pattern string required') + } + + if (!options) options = {} + + // shortcut: comments match nothing. + if (!options.nocomment && pattern.charAt(0) === '#') { + return false + } + + // "" only matches "" + if (pattern.trim() === '') return p === '' + + return new Minimatch(pattern, options).match(p) +} + +function Minimatch (pattern, options) { + if (!(this instanceof Minimatch)) { + return new Minimatch(pattern, options) + } + + if (typeof pattern !== 'string') { + throw new TypeError('glob pattern string required') + } + + if (!options) options = {} + pattern = pattern.trim() + + // windows support: need to use /, not \ + if (path.sep !== '/') { + pattern = pattern.split(path.sep).join('/') + } + + this.options = options + this.set = [] + this.pattern = pattern + this.regexp = null + this.negate = false + this.comment = false + this.empty = false + + // make the set of regexps etc. + this.make() +} + +Minimatch.prototype.debug = function () {} + +Minimatch.prototype.make = make +function make () { + // don't do it more than once. + if (this._made) return + + var pattern = this.pattern + var options = this.options + + // empty patterns and comments match nothing. + if (!options.nocomment && pattern.charAt(0) === '#') { + this.comment = true + return + } + if (!pattern) { + this.empty = true + return + } + + // step 1: figure out negation, etc. + this.parseNegate() + + // step 2: expand braces + var set = this.globSet = this.braceExpand() + + if (options.debug) this.debug = console.error + + this.debug(this.pattern, set) + + // step 3: now we have a set, so turn each one into a series of path-portion + // matching patterns. + // These will be regexps, except in the case of "**", which is + // set to the GLOBSTAR object for globstar behavior, + // and will not contain any / characters + set = this.globParts = set.map(function (s) { + return s.split(slashSplit) + }) + + this.debug(this.pattern, set) + + // glob --> regexps + set = set.map(function (s, si, set) { + return s.map(this.parse, this) + }, this) + + this.debug(this.pattern, set) + + // filter out everything that didn't compile properly. + set = set.filter(function (s) { + return s.indexOf(false) === -1 + }) + + this.debug(this.pattern, set) + + this.set = set +} + +Minimatch.prototype.parseNegate = parseNegate +function parseNegate () { + var pattern = this.pattern + var negate = false + var options = this.options + var negateOffset = 0 + + if (options.nonegate) return + + for (var i = 0, l = pattern.length + ; i < l && pattern.charAt(i) === '!' + ; i++) { + negate = !negate + negateOffset++ + } + + if (negateOffset) this.pattern = pattern.substr(negateOffset) + this.negate = negate +} + +// Brace expansion: +// a{b,c}d -> abd acd +// a{b,}c -> abc ac +// a{0..3}d -> a0d a1d a2d a3d +// a{b,c{d,e}f}g -> abg acdfg acefg +// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg +// +// Invalid sets are not expanded. +// a{2..}b -> a{2..}b +// a{b}c -> a{b}c +minimatch.braceExpand = function (pattern, options) { + return braceExpand(pattern, options) +} + +Minimatch.prototype.braceExpand = braceExpand + +function braceExpand (pattern, options) { + if (!options) { + if (this instanceof Minimatch) { + options = this.options + } else { + options = {} + } + } + + pattern = typeof pattern === 'undefined' + ? this.pattern : pattern + + if (typeof pattern === 'undefined') { + throw new TypeError('undefined pattern') + } + + if (options.nobrace || + !pattern.match(/\{.*\}/)) { + // shortcut. no need to expand. + return [pattern] + } + + return expand(pattern) +} + +// parse a component of the expanded set. +// At this point, no pattern may contain "/" in it +// so we're going to return a 2d array, where each entry is the full +// pattern, split on '/', and then turned into a regular expression. +// A regexp is made at the end which joins each array with an +// escaped /, and another full one which joins each regexp with |. +// +// Following the lead of Bash 4.1, note that "**" only has special meaning +// when it is the *only* thing in a path portion. Otherwise, any series +// of * is equivalent to a single *. Globstar behavior is enabled by +// default, and can be disabled by setting options.noglobstar. +Minimatch.prototype.parse = parse +var SUBPARSE = {} +function parse (pattern, isSub) { + if (pattern.length > 1024 * 64) { + throw new TypeError('pattern is too long') + } + + var options = this.options + + // shortcuts + if (!options.noglobstar && pattern === '**') return GLOBSTAR + if (pattern === '') return '' + + var re = '' + var hasMagic = !!options.nocase + var escaping = false + // ? => one single character + var patternListStack = [] + var negativeLists = [] + var stateChar + var inClass = false + var reClassStart = -1 + var classStart = -1 + // . and .. never match anything that doesn't start with ., + // even when options.dot is set. + var patternStart = pattern.charAt(0) === '.' ? '' // anything + // not (start or / followed by . or .. followed by / or end) + : options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))' + : '(?!\\.)' + var self = this + + function clearStateChar () { + if (stateChar) { + // we had some state-tracking character + // that wasn't consumed by this pass. + switch (stateChar) { + case '*': + re += star + hasMagic = true + break + case '?': + re += qmark + hasMagic = true + break + default: + re += '\\' + stateChar + break + } + self.debug('clearStateChar %j %j', stateChar, re) + stateChar = false + } + } + + for (var i = 0, len = pattern.length, c + ; (i < len) && (c = pattern.charAt(i)) + ; i++) { + this.debug('%s\t%s %s %j', pattern, i, re, c) + + // skip over any that are escaped. + if (escaping && reSpecials[c]) { + re += '\\' + c + escaping = false + continue + } + + switch (c) { + case '/': + // completely not allowed, even escaped. + // Should already be path-split by now. + return false + + case '\\': + clearStateChar() + escaping = true + continue + + // the various stateChar values + // for the "extglob" stuff. + case '?': + case '*': + case '+': + case '@': + case '!': + this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c) + + // all of those are literals inside a class, except that + // the glob [!a] means [^a] in regexp + if (inClass) { + this.debug(' in class') + if (c === '!' && i === classStart + 1) c = '^' + re += c + continue + } + + // if we already have a stateChar, then it means + // that there was something like ** or +? in there. + // Handle the stateChar, then proceed with this one. + self.debug('call clearStateChar %j', stateChar) + clearStateChar() + stateChar = c + // if extglob is disabled, then +(asdf|foo) isn't a thing. + // just clear the statechar *now*, rather than even diving into + // the patternList stuff. + if (options.noext) clearStateChar() + continue + + case '(': + if (inClass) { + re += '(' + continue + } + + if (!stateChar) { + re += '\\(' + continue + } + + patternListStack.push({ + type: stateChar, + start: i - 1, + reStart: re.length, + open: plTypes[stateChar].open, + close: plTypes[stateChar].close + }) + // negation is (?:(?!js)[^/]*) + re += stateChar === '!' ? '(?:(?!(?:' : '(?:' + this.debug('plType %j %j', stateChar, re) + stateChar = false + continue + + case ')': + if (inClass || !patternListStack.length) { + re += '\\)' + continue + } + + clearStateChar() + hasMagic = true + var pl = patternListStack.pop() + // negation is (?:(?!js)[^/]*) + // The others are (?:) + re += pl.close + if (pl.type === '!') { + negativeLists.push(pl) + } + pl.reEnd = re.length + continue + + case '|': + if (inClass || !patternListStack.length || escaping) { + re += '\\|' + escaping = false + continue + } + + clearStateChar() + re += '|' + continue + + // these are mostly the same in regexp and glob + case '[': + // swallow any state-tracking char before the [ + clearStateChar() + + if (inClass) { + re += '\\' + c + continue + } + + inClass = true + classStart = i + reClassStart = re.length + re += c + continue + + case ']': + // a right bracket shall lose its special + // meaning and represent itself in + // a bracket expression if it occurs + // first in the list. -- POSIX.2 2.8.3.2 + if (i === classStart + 1 || !inClass) { + re += '\\' + c + escaping = false + continue + } + + // handle the case where we left a class open. + // "[z-a]" is valid, equivalent to "\[z-a\]" + if (inClass) { + // split where the last [ was, make sure we don't have + // an invalid re. if so, re-walk the contents of the + // would-be class to re-translate any characters that + // were passed through as-is + // TODO: It would probably be faster to determine this + // without a try/catch and a new RegExp, but it's tricky + // to do safely. For now, this is safe and works. + var cs = pattern.substring(classStart + 1, i) + try { + RegExp('[' + cs + ']') + } catch (er) { + // not a valid class! + var sp = this.parse(cs, SUBPARSE) + re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]' + hasMagic = hasMagic || sp[1] + inClass = false + continue + } + } + + // finish up the class. + hasMagic = true + inClass = false + re += c + continue + + default: + // swallow any state char that wasn't consumed + clearStateChar() + + if (escaping) { + // no need + escaping = false + } else if (reSpecials[c] + && !(c === '^' && inClass)) { + re += '\\' + } + + re += c + + } // switch + } // for + + // handle the case where we left a class open. + // "[abc" is valid, equivalent to "\[abc" + if (inClass) { + // split where the last [ was, and escape it + // this is a huge pita. We now have to re-walk + // the contents of the would-be class to re-translate + // any characters that were passed through as-is + cs = pattern.substr(classStart + 1) + sp = this.parse(cs, SUBPARSE) + re = re.substr(0, reClassStart) + '\\[' + sp[0] + hasMagic = hasMagic || sp[1] + } + + // handle the case where we had a +( thing at the *end* + // of the pattern. + // each pattern list stack adds 3 chars, and we need to go through + // and escape any | chars that were passed through as-is for the regexp. + // Go through and escape them, taking care not to double-escape any + // | chars that were already escaped. + for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) { + var tail = re.slice(pl.reStart + pl.open.length) + this.debug('setting tail', re, pl) + // maybe some even number of \, then maybe 1 \, followed by a | + tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) { + if (!$2) { + // the | isn't already escaped, so escape it. + $2 = '\\' + } + + // need to escape all those slashes *again*, without escaping the + // one that we need for escaping the | character. As it works out, + // escaping an even number of slashes can be done by simply repeating + // it exactly after itself. That's why this trick works. + // + // I am sorry that you have to see this. + return $1 + $1 + $2 + '|' + }) + + this.debug('tail=%j\n %s', tail, tail, pl, re) + var t = pl.type === '*' ? star + : pl.type === '?' ? qmark + : '\\' + pl.type + + hasMagic = true + re = re.slice(0, pl.reStart) + t + '\\(' + tail + } + + // handle trailing things that only matter at the very end. + clearStateChar() + if (escaping) { + // trailing \\ + re += '\\\\' + } + + // only need to apply the nodot start if the re starts with + // something that could conceivably capture a dot + var addPatternStart = false + switch (re.charAt(0)) { + case '.': + case '[': + case '(': addPatternStart = true + } + + // Hack to work around lack of negative lookbehind in JS + // A pattern like: *.!(x).!(y|z) needs to ensure that a name + // like 'a.xyz.yz' doesn't match. So, the first negative + // lookahead, has to look ALL the way ahead, to the end of + // the pattern. + for (var n = negativeLists.length - 1; n > -1; n--) { + var nl = negativeLists[n] + + var nlBefore = re.slice(0, nl.reStart) + var nlFirst = re.slice(nl.reStart, nl.reEnd - 8) + var nlLast = re.slice(nl.reEnd - 8, nl.reEnd) + var nlAfter = re.slice(nl.reEnd) + + nlLast += nlAfter + + // Handle nested stuff like *(*.js|!(*.json)), where open parens + // mean that we should *not* include the ) in the bit that is considered + // "after" the negated section. + var openParensBefore = nlBefore.split('(').length - 1 + var cleanAfter = nlAfter + for (i = 0; i < openParensBefore; i++) { + cleanAfter = cleanAfter.replace(/\)[+*?]?/, '') + } + nlAfter = cleanAfter + + var dollar = '' + if (nlAfter === '' && isSub !== SUBPARSE) { + dollar = '$' + } + var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast + re = newRe + } + + // if the re is not "" at this point, then we need to make sure + // it doesn't match against an empty path part. + // Otherwise a/* will match a/, which it should not. + if (re !== '' && hasMagic) { + re = '(?=.)' + re + } + + if (addPatternStart) { + re = patternStart + re + } + + // parsing just a piece of a larger pattern. + if (isSub === SUBPARSE) { + return [re, hasMagic] + } + + // skip the regexp for non-magical patterns + // unescape anything in it, though, so that it'll be + // an exact match against a file etc. + if (!hasMagic) { + return globUnescape(pattern) + } + + var flags = options.nocase ? 'i' : '' + try { + var regExp = new RegExp('^' + re + '$', flags) + } catch (er) { + // If it was an invalid regular expression, then it can't match + // anything. This trick looks for a character after the end of + // the string, which is of course impossible, except in multi-line + // mode, but it's not a /m regex. + return new RegExp('$.') + } + + regExp._glob = pattern + regExp._src = re + + return regExp +} + +minimatch.makeRe = function (pattern, options) { + return new Minimatch(pattern, options || {}).makeRe() +} + +Minimatch.prototype.makeRe = makeRe +function makeRe () { + if (this.regexp || this.regexp === false) return this.regexp + + // at this point, this.set is a 2d array of partial + // pattern strings, or "**". + // + // It's better to use .match(). This function shouldn't + // be used, really, but it's pretty convenient sometimes, + // when you just want to work with a regex. + var set = this.set + + if (!set.length) { + this.regexp = false + return this.regexp + } + var options = this.options + + var twoStar = options.noglobstar ? star + : options.dot ? twoStarDot + : twoStarNoDot + var flags = options.nocase ? 'i' : '' + + var re = set.map(function (pattern) { + return pattern.map(function (p) { + return (p === GLOBSTAR) ? twoStar + : (typeof p === 'string') ? regExpEscape(p) + : p._src + }).join('\\\/') + }).join('|') + + // must match entire pattern + // ending in a * or ** will make it less strict. + re = '^(?:' + re + ')$' + + // can match anything, as long as it's not this. + if (this.negate) re = '^(?!' + re + ').*$' + + try { + this.regexp = new RegExp(re, flags) + } catch (ex) { + this.regexp = false + } + return this.regexp +} + +minimatch.match = function (list, pattern, options) { + options = options || {} + var mm = new Minimatch(pattern, options) + list = list.filter(function (f) { + return mm.match(f) + }) + if (mm.options.nonull && !list.length) { + list.push(pattern) + } + return list +} + +Minimatch.prototype.match = match +function match (f, partial) { + this.debug('match', f, this.pattern) + // short-circuit in the case of busted things. + // comments, etc. + if (this.comment) return false + if (this.empty) return f === '' + + if (f === '/' && partial) return true + + var options = this.options + + // windows: need to use /, not \ + if (path.sep !== '/') { + f = f.split(path.sep).join('/') + } + + // treat the test path as a set of pathparts. + f = f.split(slashSplit) + this.debug(this.pattern, 'split', f) + + // just ONE of the pattern sets in this.set needs to match + // in order for it to be valid. If negating, then just one + // match means that we have failed. + // Either way, return on the first hit. + + var set = this.set + this.debug(this.pattern, 'set', set) + + // Find the basename of the path by looking for the last non-empty segment + var filename + var i + for (i = f.length - 1; i >= 0; i--) { + filename = f[i] + if (filename) break + } + + for (i = 0; i < set.length; i++) { + var pattern = set[i] + var file = f + if (options.matchBase && pattern.length === 1) { + file = [filename] + } + var hit = this.matchOne(file, pattern, partial) + if (hit) { + if (options.flipNegate) return true + return !this.negate + } + } + + // didn't get any hits. this is success if it's a negative + // pattern, failure otherwise. + if (options.flipNegate) return false + return this.negate +} + +// set partial to true to test if, for example, +// "/a/b" matches the start of "/*/b/*/d" +// Partial means, if you run out of file before you run +// out of pattern, then that's fine, as long as all +// the parts match. +Minimatch.prototype.matchOne = function (file, pattern, partial) { + var options = this.options + + this.debug('matchOne', + { 'this': this, file: file, pattern: pattern }) + + this.debug('matchOne', file.length, pattern.length) + + for (var fi = 0, + pi = 0, + fl = file.length, + pl = pattern.length + ; (fi < fl) && (pi < pl) + ; fi++, pi++) { + this.debug('matchOne loop') + var p = pattern[pi] + var f = file[fi] + + this.debug(pattern, p, f) + + // should be impossible. + // some invalid regexp stuff in the set. + if (p === false) return false + + if (p === GLOBSTAR) { + this.debug('GLOBSTAR', [pattern, p, f]) + + // "**" + // a/**/b/**/c would match the following: + // a/b/x/y/z/c + // a/x/y/z/b/c + // a/b/x/b/x/c + // a/b/c + // To do this, take the rest of the pattern after + // the **, and see if it would match the file remainder. + // If so, return success. + // If not, the ** "swallows" a segment, and try again. + // This is recursively awful. + // + // a/**/b/**/c matching a/b/x/y/z/c + // - a matches a + // - doublestar + // - matchOne(b/x/y/z/c, b/**/c) + // - b matches b + // - doublestar + // - matchOne(x/y/z/c, c) -> no + // - matchOne(y/z/c, c) -> no + // - matchOne(z/c, c) -> no + // - matchOne(c, c) yes, hit + var fr = fi + var pr = pi + 1 + if (pr === pl) { + this.debug('** at the end') + // a ** at the end will just swallow the rest. + // We have found a match. + // however, it will not swallow /.x, unless + // options.dot is set. + // . and .. are *never* matched by **, for explosively + // exponential reasons. + for (; fi < fl; fi++) { + if (file[fi] === '.' || file[fi] === '..' || + (!options.dot && file[fi].charAt(0) === '.')) return false + } + return true + } + + // ok, let's see if we can swallow whatever we can. + while (fr < fl) { + var swallowee = file[fr] + + this.debug('\nglobstar while', file, fr, pattern, pr, swallowee) + + // XXX remove this slice. Just pass the start index. + if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) { + this.debug('globstar found match!', fr, fl, swallowee) + // found a match. + return true + } else { + // can't swallow "." or ".." ever. + // can only swallow ".foo" when explicitly asked. + if (swallowee === '.' || swallowee === '..' || + (!options.dot && swallowee.charAt(0) === '.')) { + this.debug('dot detected!', file, fr, pattern, pr) + break + } + + // ** swallows a segment, and continue. + this.debug('globstar swallow a segment, and continue') + fr++ + } + } + + // no match was found. + // However, in partial mode, we can't say this is necessarily over. + // If there's more *pattern* left, then + if (partial) { + // ran out of file + this.debug('\n>>> no match, partial?', file, fr, pattern, pr) + if (fr === fl) return true + } + return false + } + + // something other than ** + // non-magic patterns just have to match exactly + // patterns with magic have been turned into regexps. + var hit + if (typeof p === 'string') { + if (options.nocase) { + hit = f.toLowerCase() === p.toLowerCase() + } else { + hit = f === p + } + this.debug('string match', p, f, hit) + } else { + hit = f.match(p) + this.debug('pattern match', p, f, hit) + } + + if (!hit) return false + } + + // Note: ending in / means that we'll get a final "" + // at the end of the pattern. This can only match a + // corresponding "" at the end of the file. + // If the file ends in /, then it can only match a + // a pattern that ends in /, unless the pattern just + // doesn't have any more for it. But, a/b/ should *not* + // match "a/b/*", even though "" matches against the + // [^/]*? pattern, except in partial mode, where it might + // simply not be reached yet. + // However, a/b/ should still satisfy a/* + + // now either we fell off the end of the pattern, or we're done. + if (fi === fl && pi === pl) { + // ran out of pattern and filename at the same time. + // an exact hit! + return true + } else if (fi === fl) { + // ran out of file, but still had pattern left. + // this is ok if we're doing the match as part of + // a glob fs traversal. + return partial + } else if (pi === pl) { + // ran out of pattern, still have file left. + // this is only acceptable if we're on the very last + // empty segment of a file with a trailing slash. + // a/* should match a/b/ + var emptyFileEnd = (fi === fl - 1) && (file[fi] === '') + return emptyFileEnd + } + + // should be unreachable. + throw new Error('wtf?') +} + +// replace stuff like \* with * +function globUnescape (s) { + return s.replace(/\\(.)/g, '$1') +} + +function regExpEscape (s) { + return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&') +} + +},{"brace-expansion":11,"path":22}],21:[function(require,module,exports){ +var wrappy = require('wrappy') +module.exports = wrappy(once) +module.exports.strict = wrappy(onceStrict) + +once.proto = once(function () { + Object.defineProperty(Function.prototype, 'once', { + value: function () { + return once(this) + }, + configurable: true + }) + + Object.defineProperty(Function.prototype, 'onceStrict', { + value: function () { + return onceStrict(this) + }, + configurable: true + }) +}) + +function once (fn) { + var f = function () { + if (f.called) return f.value + f.called = true + return f.value = fn.apply(this, arguments) + } + f.called = false + return f +} + +function onceStrict (fn) { + var f = function () { + if (f.called) + throw new Error(f.onceError) + f.called = true + return f.value = fn.apply(this, arguments) + } + var name = fn.name || 'Function wrapped with `once`' + f.onceError = name + " shouldn't be called more than once" + f.called = false + return f +} + +},{"wrappy":29}],22:[function(require,module,exports){ +(function (process){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// resolves . and .. elements in a path array with directory names there +// must be no slashes, empty elements, or device names (c:\) in the array +// (so also no leading and trailing slashes - it does not distinguish +// relative and absolute paths) +function normalizeArray(parts, allowAboveRoot) { + // if the path tries to go above the root, `up` ends up > 0 + var up = 0; + for (var i = parts.length - 1; i >= 0; i--) { + var last = parts[i]; + if (last === '.') { + parts.splice(i, 1); + } else if (last === '..') { + parts.splice(i, 1); + up++; + } else if (up) { + parts.splice(i, 1); + up--; + } + } + + // if the path is allowed to go above the root, restore leading ..s + if (allowAboveRoot) { + for (; up--; up) { + parts.unshift('..'); + } + } + + return parts; +} + +// Split a filename into [root, dir, basename, ext], unix version +// 'root' is just a slash, or nothing. +var splitPathRe = + /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/; +var splitPath = function(filename) { + return splitPathRe.exec(filename).slice(1); +}; + +// path.resolve([from ...], to) +// posix version +exports.resolve = function() { + var resolvedPath = '', + resolvedAbsolute = false; + + for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) { + var path = (i >= 0) ? arguments[i] : process.cwd(); + + // Skip empty and invalid entries + if (typeof path !== 'string') { + throw new TypeError('Arguments to path.resolve must be strings'); + } else if (!path) { + continue; + } + + resolvedPath = path + '/' + resolvedPath; + resolvedAbsolute = path.charAt(0) === '/'; + } + + // At this point the path should be resolved to a full absolute path, but + // handle relative paths to be safe (might happen when process.cwd() fails) + + // Normalize the path + resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) { + return !!p; + }), !resolvedAbsolute).join('/'); + + return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.'; +}; + +// path.normalize(path) +// posix version +exports.normalize = function(path) { + var isAbsolute = exports.isAbsolute(path), + trailingSlash = substr(path, -1) === '/'; + + // Normalize the path + path = normalizeArray(filter(path.split('/'), function(p) { + return !!p; + }), !isAbsolute).join('/'); + + if (!path && !isAbsolute) { + path = '.'; + } + if (path && trailingSlash) { + path += '/'; + } + + return (isAbsolute ? '/' : '') + path; +}; + +// posix version +exports.isAbsolute = function(path) { + return path.charAt(0) === '/'; +}; + +// posix version +exports.join = function() { + var paths = Array.prototype.slice.call(arguments, 0); + return exports.normalize(filter(paths, function(p, index) { + if (typeof p !== 'string') { + throw new TypeError('Arguments to path.join must be strings'); + } + return p; + }).join('/')); +}; + + +// path.relative(from, to) +// posix version +exports.relative = function(from, to) { + from = exports.resolve(from).substr(1); + to = exports.resolve(to).substr(1); + + function trim(arr) { + var start = 0; + for (; start < arr.length; start++) { + if (arr[start] !== '') break; + } + + var end = arr.length - 1; + for (; end >= 0; end--) { + if (arr[end] !== '') break; + } + + if (start > end) return []; + return arr.slice(start, end - start + 1); + } + + var fromParts = trim(from.split('/')); + var toParts = trim(to.split('/')); + + var length = Math.min(fromParts.length, toParts.length); + var samePartsLength = length; + for (var i = 0; i < length; i++) { + if (fromParts[i] !== toParts[i]) { + samePartsLength = i; + break; + } + } + + var outputParts = []; + for (var i = samePartsLength; i < fromParts.length; i++) { + outputParts.push('..'); + } + + outputParts = outputParts.concat(toParts.slice(samePartsLength)); + + return outputParts.join('/'); +}; + +exports.sep = '/'; +exports.delimiter = ':'; + +exports.dirname = function(path) { + var result = splitPath(path), + root = result[0], + dir = result[1]; + + if (!root && !dir) { + // No dirname whatsoever + return '.'; + } + + if (dir) { + // It has a dirname, strip trailing slash + dir = dir.substr(0, dir.length - 1); + } + + return root + dir; +}; + + +exports.basename = function(path, ext) { + var f = splitPath(path)[2]; + // TODO: make this comparison case-insensitive on windows? + if (ext && f.substr(-1 * ext.length) === ext) { + f = f.substr(0, f.length - ext.length); + } + return f; +}; + + +exports.extname = function(path) { + return splitPath(path)[3]; +}; + +function filter (xs, f) { + if (xs.filter) return xs.filter(f); + var res = []; + for (var i = 0; i < xs.length; i++) { + if (f(xs[i], i, xs)) res.push(xs[i]); + } + return res; +} + +// String.prototype.substr - negative index don't work in IE8 +var substr = 'ab'.substr(-1) === 'b' + ? function (str, start, len) { return str.substr(start, len) } + : function (str, start, len) { + if (start < 0) start = str.length + start; + return str.substr(start, len); + } +; + +}).call(this,require('_process')) +},{"_process":24}],23:[function(require,module,exports){ +(function (process){ +'use strict'; + +function posix(path) { + return path.charAt(0) === '/'; +} + +function win32(path) { + // https://github.com/nodejs/node/blob/b3fcc245fb25539909ef1d5eaa01dbf92e168633/lib/path.js#L56 + var splitDeviceRe = /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/; + var result = splitDeviceRe.exec(path); + var device = result[1] || ''; + var isUnc = Boolean(device && device.charAt(1) !== ':'); + + // UNC paths are always absolute + return Boolean(result[2] || isUnc); +} + +module.exports = process.platform === 'win32' ? win32 : posix; +module.exports.posix = posix; +module.exports.win32 = win32; + +}).call(this,require('_process')) +},{"_process":24}],24:[function(require,module,exports){ +// shim for using process in browser +var process = module.exports = {}; + +// cached from whatever global is present so that test runners that stub it +// don't break things. But we need to wrap it in a try catch in case it is +// wrapped in strict mode code which doesn't define any globals. It's inside a +// function because try/catches deoptimize in certain engines. + +var cachedSetTimeout; +var cachedClearTimeout; + +function defaultSetTimout() { + throw new Error('setTimeout has not been defined'); +} +function defaultClearTimeout () { + throw new Error('clearTimeout has not been defined'); +} +(function () { + try { + if (typeof setTimeout === 'function') { + cachedSetTimeout = setTimeout; + } else { + cachedSetTimeout = defaultSetTimout; + } + } catch (e) { + cachedSetTimeout = defaultSetTimout; + } + try { + if (typeof clearTimeout === 'function') { + cachedClearTimeout = clearTimeout; + } else { + cachedClearTimeout = defaultClearTimeout; + } + } catch (e) { + cachedClearTimeout = defaultClearTimeout; + } +} ()) +function runTimeout(fun) { + if (cachedSetTimeout === setTimeout) { + //normal enviroments in sane situations + return setTimeout(fun, 0); + } + // if setTimeout wasn't available but was latter defined + if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { + cachedSetTimeout = setTimeout; + return setTimeout(fun, 0); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedSetTimeout(fun, 0); + } catch(e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedSetTimeout.call(null, fun, 0); + } catch(e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error + return cachedSetTimeout.call(this, fun, 0); + } + } + + +} +function runClearTimeout(marker) { + if (cachedClearTimeout === clearTimeout) { + //normal enviroments in sane situations + return clearTimeout(marker); + } + // if clearTimeout wasn't available but was latter defined + if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { + cachedClearTimeout = clearTimeout; + return clearTimeout(marker); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedClearTimeout(marker); + } catch (e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedClearTimeout.call(null, marker); + } catch (e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. + // Some versions of I.E. have different rules for clearTimeout vs setTimeout + return cachedClearTimeout.call(this, marker); + } + } + + + +} +var queue = []; +var draining = false; +var currentQueue; +var queueIndex = -1; + +function cleanUpNextTick() { + if (!draining || !currentQueue) { + return; + } + draining = false; + if (currentQueue.length) { + queue = currentQueue.concat(queue); + } else { + queueIndex = -1; + } + if (queue.length) { + drainQueue(); + } +} + +function drainQueue() { + if (draining) { + return; + } + var timeout = runTimeout(cleanUpNextTick); + draining = true; + + var len = queue.length; + while(len) { + currentQueue = queue; + queue = []; + while (++queueIndex < len) { + if (currentQueue) { + currentQueue[queueIndex].run(); + } + } + queueIndex = -1; + len = queue.length; + } + currentQueue = null; + draining = false; + runClearTimeout(timeout); +} + +process.nextTick = function (fun) { + var args = new Array(arguments.length - 1); + if (arguments.length > 1) { + for (var i = 1; i < arguments.length; i++) { + args[i - 1] = arguments[i]; + } + } + queue.push(new Item(fun, args)); + if (queue.length === 1 && !draining) { + runTimeout(drainQueue); + } +}; + +// v8 likes predictible objects +function Item(fun, array) { + this.fun = fun; + this.array = array; +} +Item.prototype.run = function () { + this.fun.apply(null, this.array); +}; +process.title = 'browser'; +process.browser = true; +process.env = {}; +process.argv = []; +process.version = ''; // empty string to avoid regexp issues +process.versions = {}; + +function noop() {} + +process.on = noop; +process.addListener = noop; +process.once = noop; +process.off = noop; +process.removeListener = noop; +process.removeAllListeners = noop; +process.emit = noop; +process.prependListener = noop; +process.prependOnceListener = noop; + +process.listeners = function (name) { return [] } + +process.binding = function (name) { + throw new Error('process.binding is not supported'); +}; + +process.cwd = function () { return '/' }; +process.chdir = function (dir) { + throw new Error('process.chdir is not supported'); +}; +process.umask = function() { return 0; }; + +},{}],25:[function(require,module,exports){ +// Underscore.js 1.8.3 +// http://underscorejs.org +// (c) 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors +// Underscore may be freely distributed under the MIT license. + +(function() { + + // Baseline setup + // -------------- + + // Establish the root object, `window` in the browser, or `exports` on the server. + var root = this; + + // Save the previous value of the `_` variable. + var previousUnderscore = root._; + + // Save bytes in the minified (but not gzipped) version: + var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype; + + // Create quick reference variables for speed access to core prototypes. + var + push = ArrayProto.push, + slice = ArrayProto.slice, + toString = ObjProto.toString, + hasOwnProperty = ObjProto.hasOwnProperty; + + // All **ECMAScript 5** native function implementations that we hope to use + // are declared here. + var + nativeIsArray = Array.isArray, + nativeKeys = Object.keys, + nativeBind = FuncProto.bind, + nativeCreate = Object.create; + + // Naked function reference for surrogate-prototype-swapping. + var Ctor = function(){}; + + // Create a safe reference to the Underscore object for use below. + var _ = function(obj) { + if (obj instanceof _) return obj; + if (!(this instanceof _)) return new _(obj); + this._wrapped = obj; + }; + + // Export the Underscore object for **Node.js**, with + // backwards-compatibility for the old `require()` API. If we're in + // the browser, add `_` as a global object. + if (typeof exports !== 'undefined') { + if (typeof module !== 'undefined' && module.exports) { + exports = module.exports = _; + } + exports._ = _; + } else { + root._ = _; + } + + // Current version. + _.VERSION = '1.8.3'; + + // Internal function that returns an efficient (for current engines) version + // of the passed-in callback, to be repeatedly applied in other Underscore + // functions. + var optimizeCb = function(func, context, argCount) { + if (context === void 0) return func; + switch (argCount == null ? 3 : argCount) { + case 1: return function(value) { + return func.call(context, value); + }; + case 2: return function(value, other) { + return func.call(context, value, other); + }; + case 3: return function(value, index, collection) { + return func.call(context, value, index, collection); + }; + case 4: return function(accumulator, value, index, collection) { + return func.call(context, accumulator, value, index, collection); + }; + } + return function() { + return func.apply(context, arguments); + }; + }; + + // A mostly-internal function to generate callbacks that can be applied + // to each element in a collection, returning the desired result — either + // identity, an arbitrary callback, a property matcher, or a property accessor. + var cb = function(value, context, argCount) { + if (value == null) return _.identity; + if (_.isFunction(value)) return optimizeCb(value, context, argCount); + if (_.isObject(value)) return _.matcher(value); + return _.property(value); + }; + _.iteratee = function(value, context) { + return cb(value, context, Infinity); + }; + + // An internal function for creating assigner functions. + var createAssigner = function(keysFunc, undefinedOnly) { + return function(obj) { + var length = arguments.length; + if (length < 2 || obj == null) return obj; + for (var index = 1; index < length; index++) { + var source = arguments[index], + keys = keysFunc(source), + l = keys.length; + for (var i = 0; i < l; i++) { + var key = keys[i]; + if (!undefinedOnly || obj[key] === void 0) obj[key] = source[key]; + } + } + return obj; + }; + }; + + // An internal function for creating a new object that inherits from another. + var baseCreate = function(prototype) { + if (!_.isObject(prototype)) return {}; + if (nativeCreate) return nativeCreate(prototype); + Ctor.prototype = prototype; + var result = new Ctor; + Ctor.prototype = null; + return result; + }; + + var property = function(key) { + return function(obj) { + return obj == null ? void 0 : obj[key]; + }; + }; + + // Helper for collection methods to determine whether a collection + // should be iterated as an array or as an object + // Related: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength + // Avoids a very nasty iOS 8 JIT bug on ARM-64. #2094 + var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1; + var getLength = property('length'); + var isArrayLike = function(collection) { + var length = getLength(collection); + return typeof length == 'number' && length >= 0 && length <= MAX_ARRAY_INDEX; + }; + + // Collection Functions + // -------------------- + + // The cornerstone, an `each` implementation, aka `forEach`. + // Handles raw objects in addition to array-likes. Treats all + // sparse array-likes as if they were dense. + _.each = _.forEach = function(obj, iteratee, context) { + iteratee = optimizeCb(iteratee, context); + var i, length; + if (isArrayLike(obj)) { + for (i = 0, length = obj.length; i < length; i++) { + iteratee(obj[i], i, obj); + } + } else { + var keys = _.keys(obj); + for (i = 0, length = keys.length; i < length; i++) { + iteratee(obj[keys[i]], keys[i], obj); + } + } + return obj; + }; + + // Return the results of applying the iteratee to each element. + _.map = _.collect = function(obj, iteratee, context) { + iteratee = cb(iteratee, context); + var keys = !isArrayLike(obj) && _.keys(obj), + length = (keys || obj).length, + results = Array(length); + for (var index = 0; index < length; index++) { + var currentKey = keys ? keys[index] : index; + results[index] = iteratee(obj[currentKey], currentKey, obj); + } + return results; + }; + + // Create a reducing function iterating left or right. + function createReduce(dir) { + // Optimized iterator function as using arguments.length + // in the main function will deoptimize the, see #1991. + function iterator(obj, iteratee, memo, keys, index, length) { + for (; index >= 0 && index < length; index += dir) { + var currentKey = keys ? keys[index] : index; + memo = iteratee(memo, obj[currentKey], currentKey, obj); + } + return memo; + } + + return function(obj, iteratee, memo, context) { + iteratee = optimizeCb(iteratee, context, 4); + var keys = !isArrayLike(obj) && _.keys(obj), + length = (keys || obj).length, + index = dir > 0 ? 0 : length - 1; + // Determine the initial value if none is provided. + if (arguments.length < 3) { + memo = obj[keys ? keys[index] : index]; + index += dir; + } + return iterator(obj, iteratee, memo, keys, index, length); + }; + } + + // **Reduce** builds up a single result from a list of values, aka `inject`, + // or `foldl`. + _.reduce = _.foldl = _.inject = createReduce(1); + + // The right-associative version of reduce, also known as `foldr`. + _.reduceRight = _.foldr = createReduce(-1); + + // Return the first value which passes a truth test. Aliased as `detect`. + _.find = _.detect = function(obj, predicate, context) { + var key; + if (isArrayLike(obj)) { + key = _.findIndex(obj, predicate, context); + } else { + key = _.findKey(obj, predicate, context); + } + if (key !== void 0 && key !== -1) return obj[key]; + }; + + // Return all the elements that pass a truth test. + // Aliased as `select`. + _.filter = _.select = function(obj, predicate, context) { + var results = []; + predicate = cb(predicate, context); + _.each(obj, function(value, index, list) { + if (predicate(value, index, list)) results.push(value); + }); + return results; + }; + + // Return all the elements for which a truth test fails. + _.reject = function(obj, predicate, context) { + return _.filter(obj, _.negate(cb(predicate)), context); + }; + + // Determine whether all of the elements match a truth test. + // Aliased as `all`. + _.every = _.all = function(obj, predicate, context) { + predicate = cb(predicate, context); + var keys = !isArrayLike(obj) && _.keys(obj), + length = (keys || obj).length; + for (var index = 0; index < length; index++) { + var currentKey = keys ? keys[index] : index; + if (!predicate(obj[currentKey], currentKey, obj)) return false; + } + return true; + }; + + // Determine if at least one element in the object matches a truth test. + // Aliased as `any`. + _.some = _.any = function(obj, predicate, context) { + predicate = cb(predicate, context); + var keys = !isArrayLike(obj) && _.keys(obj), + length = (keys || obj).length; + for (var index = 0; index < length; index++) { + var currentKey = keys ? keys[index] : index; + if (predicate(obj[currentKey], currentKey, obj)) return true; + } + return false; + }; + + // Determine if the array or object contains a given item (using `===`). + // Aliased as `includes` and `include`. + _.contains = _.includes = _.include = function(obj, item, fromIndex, guard) { + if (!isArrayLike(obj)) obj = _.values(obj); + if (typeof fromIndex != 'number' || guard) fromIndex = 0; + return _.indexOf(obj, item, fromIndex) >= 0; + }; + + // Invoke a method (with arguments) on every item in a collection. + _.invoke = function(obj, method) { + var args = slice.call(arguments, 2); + var isFunc = _.isFunction(method); + return _.map(obj, function(value) { + var func = isFunc ? method : value[method]; + return func == null ? func : func.apply(value, args); + }); + }; + + // Convenience version of a common use case of `map`: fetching a property. + _.pluck = function(obj, key) { + return _.map(obj, _.property(key)); + }; + + // Convenience version of a common use case of `filter`: selecting only objects + // containing specific `key:value` pairs. + _.where = function(obj, attrs) { + return _.filter(obj, _.matcher(attrs)); + }; + + // Convenience version of a common use case of `find`: getting the first object + // containing specific `key:value` pairs. + _.findWhere = function(obj, attrs) { + return _.find(obj, _.matcher(attrs)); + }; + + // Return the maximum element (or element-based computation). + _.max = function(obj, iteratee, context) { + var result = -Infinity, lastComputed = -Infinity, + value, computed; + if (iteratee == null && obj != null) { + obj = isArrayLike(obj) ? obj : _.values(obj); + for (var i = 0, length = obj.length; i < length; i++) { + value = obj[i]; + if (value > result) { + result = value; + } + } + } else { + iteratee = cb(iteratee, context); + _.each(obj, function(value, index, list) { + computed = iteratee(value, index, list); + if (computed > lastComputed || computed === -Infinity && result === -Infinity) { + result = value; + lastComputed = computed; + } + }); + } + return result; + }; + + // Return the minimum element (or element-based computation). + _.min = function(obj, iteratee, context) { + var result = Infinity, lastComputed = Infinity, + value, computed; + if (iteratee == null && obj != null) { + obj = isArrayLike(obj) ? obj : _.values(obj); + for (var i = 0, length = obj.length; i < length; i++) { + value = obj[i]; + if (value < result) { + result = value; + } + } + } else { + iteratee = cb(iteratee, context); + _.each(obj, function(value, index, list) { + computed = iteratee(value, index, list); + if (computed < lastComputed || computed === Infinity && result === Infinity) { + result = value; + lastComputed = computed; + } + }); + } + return result; + }; + + // Shuffle a collection, using the modern version of the + // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle). + _.shuffle = function(obj) { + var set = isArrayLike(obj) ? obj : _.values(obj); + var length = set.length; + var shuffled = Array(length); + for (var index = 0, rand; index < length; index++) { + rand = _.random(0, index); + if (rand !== index) shuffled[index] = shuffled[rand]; + shuffled[rand] = set[index]; + } + return shuffled; + }; + + // Sample **n** random values from a collection. + // If **n** is not specified, returns a single random element. + // The internal `guard` argument allows it to work with `map`. + _.sample = function(obj, n, guard) { + if (n == null || guard) { + if (!isArrayLike(obj)) obj = _.values(obj); + return obj[_.random(obj.length - 1)]; + } + return _.shuffle(obj).slice(0, Math.max(0, n)); + }; + + // Sort the object's values by a criterion produced by an iteratee. + _.sortBy = function(obj, iteratee, context) { + iteratee = cb(iteratee, context); + return _.pluck(_.map(obj, function(value, index, list) { + return { + value: value, + index: index, + criteria: iteratee(value, index, list) + }; + }).sort(function(left, right) { + var a = left.criteria; + var b = right.criteria; + if (a !== b) { + if (a > b || a === void 0) return 1; + if (a < b || b === void 0) return -1; + } + return left.index - right.index; + }), 'value'); + }; + + // An internal function used for aggregate "group by" operations. + var group = function(behavior) { + return function(obj, iteratee, context) { + var result = {}; + iteratee = cb(iteratee, context); + _.each(obj, function(value, index) { + var key = iteratee(value, index, obj); + behavior(result, value, key); + }); + return result; + }; + }; + + // Groups the object's values by a criterion. Pass either a string attribute + // to group by, or a function that returns the criterion. + _.groupBy = group(function(result, value, key) { + if (_.has(result, key)) result[key].push(value); else result[key] = [value]; + }); + + // Indexes the object's values by a criterion, similar to `groupBy`, but for + // when you know that your index values will be unique. + _.indexBy = group(function(result, value, key) { + result[key] = value; + }); + + // Counts instances of an object that group by a certain criterion. Pass + // either a string attribute to count by, or a function that returns the + // criterion. + _.countBy = group(function(result, value, key) { + if (_.has(result, key)) result[key]++; else result[key] = 1; + }); + + // Safely create a real, live array from anything iterable. + _.toArray = function(obj) { + if (!obj) return []; + if (_.isArray(obj)) return slice.call(obj); + if (isArrayLike(obj)) return _.map(obj, _.identity); + return _.values(obj); + }; + + // Return the number of elements in an object. + _.size = function(obj) { + if (obj == null) return 0; + return isArrayLike(obj) ? obj.length : _.keys(obj).length; + }; + + // Split a collection into two arrays: one whose elements all satisfy the given + // predicate, and one whose elements all do not satisfy the predicate. + _.partition = function(obj, predicate, context) { + predicate = cb(predicate, context); + var pass = [], fail = []; + _.each(obj, function(value, key, obj) { + (predicate(value, key, obj) ? pass : fail).push(value); + }); + return [pass, fail]; + }; + + // Array Functions + // --------------- + + // Get the first element of an array. Passing **n** will return the first N + // values in the array. Aliased as `head` and `take`. The **guard** check + // allows it to work with `_.map`. + _.first = _.head = _.take = function(array, n, guard) { + if (array == null) return void 0; + if (n == null || guard) return array[0]; + return _.initial(array, array.length - n); + }; + + // Returns everything but the last entry of the array. Especially useful on + // the arguments object. Passing **n** will return all the values in + // the array, excluding the last N. + _.initial = function(array, n, guard) { + return slice.call(array, 0, Math.max(0, array.length - (n == null || guard ? 1 : n))); + }; + + // Get the last element of an array. Passing **n** will return the last N + // values in the array. + _.last = function(array, n, guard) { + if (array == null) return void 0; + if (n == null || guard) return array[array.length - 1]; + return _.rest(array, Math.max(0, array.length - n)); + }; + + // Returns everything but the first entry of the array. Aliased as `tail` and `drop`. + // Especially useful on the arguments object. Passing an **n** will return + // the rest N values in the array. + _.rest = _.tail = _.drop = function(array, n, guard) { + return slice.call(array, n == null || guard ? 1 : n); + }; + + // Trim out all falsy values from an array. + _.compact = function(array) { + return _.filter(array, _.identity); + }; + + // Internal implementation of a recursive `flatten` function. + var flatten = function(input, shallow, strict, startIndex) { + var output = [], idx = 0; + for (var i = startIndex || 0, length = getLength(input); i < length; i++) { + var value = input[i]; + if (isArrayLike(value) && (_.isArray(value) || _.isArguments(value))) { + //flatten current level of array or arguments object + if (!shallow) value = flatten(value, shallow, strict); + var j = 0, len = value.length; + output.length += len; + while (j < len) { + output[idx++] = value[j++]; + } + } else if (!strict) { + output[idx++] = value; + } + } + return output; + }; + + // Flatten out an array, either recursively (by default), or just one level. + _.flatten = function(array, shallow) { + return flatten(array, shallow, false); + }; + + // Return a version of the array that does not contain the specified value(s). + _.without = function(array) { + return _.difference(array, slice.call(arguments, 1)); + }; + + // Produce a duplicate-free version of the array. If the array has already + // been sorted, you have the option of using a faster algorithm. + // Aliased as `unique`. + _.uniq = _.unique = function(array, isSorted, iteratee, context) { + if (!_.isBoolean(isSorted)) { + context = iteratee; + iteratee = isSorted; + isSorted = false; + } + if (iteratee != null) iteratee = cb(iteratee, context); + var result = []; + var seen = []; + for (var i = 0, length = getLength(array); i < length; i++) { + var value = array[i], + computed = iteratee ? iteratee(value, i, array) : value; + if (isSorted) { + if (!i || seen !== computed) result.push(value); + seen = computed; + } else if (iteratee) { + if (!_.contains(seen, computed)) { + seen.push(computed); + result.push(value); + } + } else if (!_.contains(result, value)) { + result.push(value); + } + } + return result; + }; + + // Produce an array that contains the union: each distinct element from all of + // the passed-in arrays. + _.union = function() { + return _.uniq(flatten(arguments, true, true)); + }; + + // Produce an array that contains every item shared between all the + // passed-in arrays. + _.intersection = function(array) { + var result = []; + var argsLength = arguments.length; + for (var i = 0, length = getLength(array); i < length; i++) { + var item = array[i]; + if (_.contains(result, item)) continue; + for (var j = 1; j < argsLength; j++) { + if (!_.contains(arguments[j], item)) break; + } + if (j === argsLength) result.push(item); + } + return result; + }; + + // Take the difference between one array and a number of other arrays. + // Only the elements present in just the first array will remain. + _.difference = function(array) { + var rest = flatten(arguments, true, true, 1); + return _.filter(array, function(value){ + return !_.contains(rest, value); + }); + }; + + // Zip together multiple lists into a single array -- elements that share + // an index go together. + _.zip = function() { + return _.unzip(arguments); + }; + + // Complement of _.zip. Unzip accepts an array of arrays and groups + // each array's elements on shared indices + _.unzip = function(array) { + var length = array && _.max(array, getLength).length || 0; + var result = Array(length); + + for (var index = 0; index < length; index++) { + result[index] = _.pluck(array, index); + } + return result; + }; + + // Converts lists into objects. Pass either a single array of `[key, value]` + // pairs, or two parallel arrays of the same length -- one of keys, and one of + // the corresponding values. + _.object = function(list, values) { + var result = {}; + for (var i = 0, length = getLength(list); i < length; i++) { + if (values) { + result[list[i]] = values[i]; + } else { + result[list[i][0]] = list[i][1]; + } + } + return result; + }; + + // Generator function to create the findIndex and findLastIndex functions + function createPredicateIndexFinder(dir) { + return function(array, predicate, context) { + predicate = cb(predicate, context); + var length = getLength(array); + var index = dir > 0 ? 0 : length - 1; + for (; index >= 0 && index < length; index += dir) { + if (predicate(array[index], index, array)) return index; + } + return -1; + }; + } + + // Returns the first index on an array-like that passes a predicate test + _.findIndex = createPredicateIndexFinder(1); + _.findLastIndex = createPredicateIndexFinder(-1); + + // Use a comparator function to figure out the smallest index at which + // an object should be inserted so as to maintain order. Uses binary search. + _.sortedIndex = function(array, obj, iteratee, context) { + iteratee = cb(iteratee, context, 1); + var value = iteratee(obj); + var low = 0, high = getLength(array); + while (low < high) { + var mid = Math.floor((low + high) / 2); + if (iteratee(array[mid]) < value) low = mid + 1; else high = mid; + } + return low; + }; + + // Generator function to create the indexOf and lastIndexOf functions + function createIndexFinder(dir, predicateFind, sortedIndex) { + return function(array, item, idx) { + var i = 0, length = getLength(array); + if (typeof idx == 'number') { + if (dir > 0) { + i = idx >= 0 ? idx : Math.max(idx + length, i); + } else { + length = idx >= 0 ? Math.min(idx + 1, length) : idx + length + 1; + } + } else if (sortedIndex && idx && length) { + idx = sortedIndex(array, item); + return array[idx] === item ? idx : -1; + } + if (item !== item) { + idx = predicateFind(slice.call(array, i, length), _.isNaN); + return idx >= 0 ? idx + i : -1; + } + for (idx = dir > 0 ? i : length - 1; idx >= 0 && idx < length; idx += dir) { + if (array[idx] === item) return idx; + } + return -1; + }; + } + + // Return the position of the first occurrence of an item in an array, + // or -1 if the item is not included in the array. + // If the array is large and already in sort order, pass `true` + // for **isSorted** to use binary search. + _.indexOf = createIndexFinder(1, _.findIndex, _.sortedIndex); + _.lastIndexOf = createIndexFinder(-1, _.findLastIndex); + + // Generate an integer Array containing an arithmetic progression. A port of + // the native Python `range()` function. See + // [the Python documentation](http://docs.python.org/library/functions.html#range). + _.range = function(start, stop, step) { + if (stop == null) { + stop = start || 0; + start = 0; + } + step = step || 1; + + var length = Math.max(Math.ceil((stop - start) / step), 0); + var range = Array(length); + + for (var idx = 0; idx < length; idx++, start += step) { + range[idx] = start; + } + + return range; + }; + + // Function (ahem) Functions + // ------------------ + + // Determines whether to execute a function as a constructor + // or a normal function with the provided arguments + var executeBound = function(sourceFunc, boundFunc, context, callingContext, args) { + if (!(callingContext instanceof boundFunc)) return sourceFunc.apply(context, args); + var self = baseCreate(sourceFunc.prototype); + var result = sourceFunc.apply(self, args); + if (_.isObject(result)) return result; + return self; + }; + + // Create a function bound to a given object (assigning `this`, and arguments, + // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if + // available. + _.bind = function(func, context) { + if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1)); + if (!_.isFunction(func)) throw new TypeError('Bind must be called on a function'); + var args = slice.call(arguments, 2); + var bound = function() { + return executeBound(func, bound, context, this, args.concat(slice.call(arguments))); + }; + return bound; + }; + + // Partially apply a function by creating a version that has had some of its + // arguments pre-filled, without changing its dynamic `this` context. _ acts + // as a placeholder, allowing any combination of arguments to be pre-filled. + _.partial = function(func) { + var boundArgs = slice.call(arguments, 1); + var bound = function() { + var position = 0, length = boundArgs.length; + var args = Array(length); + for (var i = 0; i < length; i++) { + args[i] = boundArgs[i] === _ ? arguments[position++] : boundArgs[i]; + } + while (position < arguments.length) args.push(arguments[position++]); + return executeBound(func, bound, this, this, args); + }; + return bound; + }; + + // Bind a number of an object's methods to that object. Remaining arguments + // are the method names to be bound. Useful for ensuring that all callbacks + // defined on an object belong to it. + _.bindAll = function(obj) { + var i, length = arguments.length, key; + if (length <= 1) throw new Error('bindAll must be passed function names'); + for (i = 1; i < length; i++) { + key = arguments[i]; + obj[key] = _.bind(obj[key], obj); + } + return obj; + }; + + // Memoize an expensive function by storing its results. + _.memoize = function(func, hasher) { + var memoize = function(key) { + var cache = memoize.cache; + var address = '' + (hasher ? hasher.apply(this, arguments) : key); + if (!_.has(cache, address)) cache[address] = func.apply(this, arguments); + return cache[address]; + }; + memoize.cache = {}; + return memoize; + }; + + // Delays a function for the given number of milliseconds, and then calls + // it with the arguments supplied. + _.delay = function(func, wait) { + var args = slice.call(arguments, 2); + return setTimeout(function(){ + return func.apply(null, args); + }, wait); + }; + + // Defers a function, scheduling it to run after the current call stack has + // cleared. + _.defer = _.partial(_.delay, _, 1); + + // Returns a function, that, when invoked, will only be triggered at most once + // during a given window of time. Normally, the throttled function will run + // as much as it can, without ever going more than once per `wait` duration; + // but if you'd like to disable the execution on the leading edge, pass + // `{leading: false}`. To disable execution on the trailing edge, ditto. + _.throttle = function(func, wait, options) { + var context, args, result; + var timeout = null; + var previous = 0; + if (!options) options = {}; + var later = function() { + previous = options.leading === false ? 0 : _.now(); + timeout = null; + result = func.apply(context, args); + if (!timeout) context = args = null; + }; + return function() { + var now = _.now(); + if (!previous && options.leading === false) previous = now; + var remaining = wait - (now - previous); + context = this; + args = arguments; + if (remaining <= 0 || remaining > wait) { + if (timeout) { + clearTimeout(timeout); + timeout = null; + } + previous = now; + result = func.apply(context, args); + if (!timeout) context = args = null; + } else if (!timeout && options.trailing !== false) { + timeout = setTimeout(later, remaining); + } + return result; + }; + }; + + // Returns a function, that, as long as it continues to be invoked, will not + // be triggered. The function will be called after it stops being called for + // N milliseconds. If `immediate` is passed, trigger the function on the + // leading edge, instead of the trailing. + _.debounce = function(func, wait, immediate) { + var timeout, args, context, timestamp, result; + + var later = function() { + var last = _.now() - timestamp; + + if (last < wait && last >= 0) { + timeout = setTimeout(later, wait - last); + } else { + timeout = null; + if (!immediate) { + result = func.apply(context, args); + if (!timeout) context = args = null; + } + } + }; + + return function() { + context = this; + args = arguments; + timestamp = _.now(); + var callNow = immediate && !timeout; + if (!timeout) timeout = setTimeout(later, wait); + if (callNow) { + result = func.apply(context, args); + context = args = null; + } + + return result; + }; + }; + + // Returns the first function passed as an argument to the second, + // allowing you to adjust arguments, run code before and after, and + // conditionally execute the original function. + _.wrap = function(func, wrapper) { + return _.partial(wrapper, func); + }; + + // Returns a negated version of the passed-in predicate. + _.negate = function(predicate) { + return function() { + return !predicate.apply(this, arguments); + }; + }; + + // Returns a function that is the composition of a list of functions, each + // consuming the return value of the function that follows. + _.compose = function() { + var args = arguments; + var start = args.length - 1; + return function() { + var i = start; + var result = args[start].apply(this, arguments); + while (i--) result = args[i].call(this, result); + return result; + }; + }; + + // Returns a function that will only be executed on and after the Nth call. + _.after = function(times, func) { + return function() { + if (--times < 1) { + return func.apply(this, arguments); + } + }; + }; + + // Returns a function that will only be executed up to (but not including) the Nth call. + _.before = function(times, func) { + var memo; + return function() { + if (--times > 0) { + memo = func.apply(this, arguments); + } + if (times <= 1) func = null; + return memo; + }; + }; + + // Returns a function that will be executed at most one time, no matter how + // often you call it. Useful for lazy initialization. + _.once = _.partial(_.before, 2); + + // Object Functions + // ---------------- + + // Keys in IE < 9 that won't be iterated by `for key in ...` and thus missed. + var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString'); + var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString', + 'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString']; + + function collectNonEnumProps(obj, keys) { + var nonEnumIdx = nonEnumerableProps.length; + var constructor = obj.constructor; + var proto = (_.isFunction(constructor) && constructor.prototype) || ObjProto; + + // Constructor is a special case. + var prop = 'constructor'; + if (_.has(obj, prop) && !_.contains(keys, prop)) keys.push(prop); + + while (nonEnumIdx--) { + prop = nonEnumerableProps[nonEnumIdx]; + if (prop in obj && obj[prop] !== proto[prop] && !_.contains(keys, prop)) { + keys.push(prop); + } + } + } + + // Retrieve the names of an object's own properties. + // Delegates to **ECMAScript 5**'s native `Object.keys` + _.keys = function(obj) { + if (!_.isObject(obj)) return []; + if (nativeKeys) return nativeKeys(obj); + var keys = []; + for (var key in obj) if (_.has(obj, key)) keys.push(key); + // Ahem, IE < 9. + if (hasEnumBug) collectNonEnumProps(obj, keys); + return keys; + }; + + // Retrieve all the property names of an object. + _.allKeys = function(obj) { + if (!_.isObject(obj)) return []; + var keys = []; + for (var key in obj) keys.push(key); + // Ahem, IE < 9. + if (hasEnumBug) collectNonEnumProps(obj, keys); + return keys; + }; + + // Retrieve the values of an object's properties. + _.values = function(obj) { + var keys = _.keys(obj); + var length = keys.length; + var values = Array(length); + for (var i = 0; i < length; i++) { + values[i] = obj[keys[i]]; + } + return values; + }; + + // Returns the results of applying the iteratee to each element of the object + // In contrast to _.map it returns an object + _.mapObject = function(obj, iteratee, context) { + iteratee = cb(iteratee, context); + var keys = _.keys(obj), + length = keys.length, + results = {}, + currentKey; + for (var index = 0; index < length; index++) { + currentKey = keys[index]; + results[currentKey] = iteratee(obj[currentKey], currentKey, obj); + } + return results; + }; + + // Convert an object into a list of `[key, value]` pairs. + _.pairs = function(obj) { + var keys = _.keys(obj); + var length = keys.length; + var pairs = Array(length); + for (var i = 0; i < length; i++) { + pairs[i] = [keys[i], obj[keys[i]]]; + } + return pairs; + }; + + // Invert the keys and values of an object. The values must be serializable. + _.invert = function(obj) { + var result = {}; + var keys = _.keys(obj); + for (var i = 0, length = keys.length; i < length; i++) { + result[obj[keys[i]]] = keys[i]; + } + return result; + }; + + // Return a sorted list of the function names available on the object. + // Aliased as `methods` + _.functions = _.methods = function(obj) { + var names = []; + for (var key in obj) { + if (_.isFunction(obj[key])) names.push(key); + } + return names.sort(); + }; + + // Extend a given object with all the properties in passed-in object(s). + _.extend = createAssigner(_.allKeys); + + // Assigns a given object with all the own properties in the passed-in object(s) + // (https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign) + _.extendOwn = _.assign = createAssigner(_.keys); + + // Returns the first key on an object that passes a predicate test + _.findKey = function(obj, predicate, context) { + predicate = cb(predicate, context); + var keys = _.keys(obj), key; + for (var i = 0, length = keys.length; i < length; i++) { + key = keys[i]; + if (predicate(obj[key], key, obj)) return key; + } + }; + + // Return a copy of the object only containing the whitelisted properties. + _.pick = function(object, oiteratee, context) { + var result = {}, obj = object, iteratee, keys; + if (obj == null) return result; + if (_.isFunction(oiteratee)) { + keys = _.allKeys(obj); + iteratee = optimizeCb(oiteratee, context); + } else { + keys = flatten(arguments, false, false, 1); + iteratee = function(value, key, obj) { return key in obj; }; + obj = Object(obj); + } + for (var i = 0, length = keys.length; i < length; i++) { + var key = keys[i]; + var value = obj[key]; + if (iteratee(value, key, obj)) result[key] = value; + } + return result; + }; + + // Return a copy of the object without the blacklisted properties. + _.omit = function(obj, iteratee, context) { + if (_.isFunction(iteratee)) { + iteratee = _.negate(iteratee); + } else { + var keys = _.map(flatten(arguments, false, false, 1), String); + iteratee = function(value, key) { + return !_.contains(keys, key); + }; + } + return _.pick(obj, iteratee, context); + }; + + // Fill in a given object with default properties. + _.defaults = createAssigner(_.allKeys, true); + + // Creates an object that inherits from the given prototype object. + // If additional properties are provided then they will be added to the + // created object. + _.create = function(prototype, props) { + var result = baseCreate(prototype); + if (props) _.extendOwn(result, props); + return result; + }; + + // Create a (shallow-cloned) duplicate of an object. + _.clone = function(obj) { + if (!_.isObject(obj)) return obj; + return _.isArray(obj) ? obj.slice() : _.extend({}, obj); + }; + + // Invokes interceptor with the obj, and then returns obj. + // The primary purpose of this method is to "tap into" a method chain, in + // order to perform operations on intermediate results within the chain. + _.tap = function(obj, interceptor) { + interceptor(obj); + return obj; + }; + + // Returns whether an object has a given set of `key:value` pairs. + _.isMatch = function(object, attrs) { + var keys = _.keys(attrs), length = keys.length; + if (object == null) return !length; + var obj = Object(object); + for (var i = 0; i < length; i++) { + var key = keys[i]; + if (attrs[key] !== obj[key] || !(key in obj)) return false; + } + return true; + }; + + + // Internal recursive comparison function for `isEqual`. + var eq = function(a, b, aStack, bStack) { + // Identical objects are equal. `0 === -0`, but they aren't identical. + // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal). + if (a === b) return a !== 0 || 1 / a === 1 / b; + // A strict comparison is necessary because `null == undefined`. + if (a == null || b == null) return a === b; + // Unwrap any wrapped objects. + if (a instanceof _) a = a._wrapped; + if (b instanceof _) b = b._wrapped; + // Compare `[[Class]]` names. + var className = toString.call(a); + if (className !== toString.call(b)) return false; + switch (className) { + // Strings, numbers, regular expressions, dates, and booleans are compared by value. + case '[object RegExp]': + // RegExps are coerced to strings for comparison (Note: '' + /a/i === '/a/i') + case '[object String]': + // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is + // equivalent to `new String("5")`. + return '' + a === '' + b; + case '[object Number]': + // `NaN`s are equivalent, but non-reflexive. + // Object(NaN) is equivalent to NaN + if (+a !== +a) return +b !== +b; + // An `egal` comparison is performed for other numeric values. + return +a === 0 ? 1 / +a === 1 / b : +a === +b; + case '[object Date]': + case '[object Boolean]': + // Coerce dates and booleans to numeric primitive values. Dates are compared by their + // millisecond representations. Note that invalid dates with millisecond representations + // of `NaN` are not equivalent. + return +a === +b; + } + + var areArrays = className === '[object Array]'; + if (!areArrays) { + if (typeof a != 'object' || typeof b != 'object') return false; + + // Objects with different constructors are not equivalent, but `Object`s or `Array`s + // from different frames are. + var aCtor = a.constructor, bCtor = b.constructor; + if (aCtor !== bCtor && !(_.isFunction(aCtor) && aCtor instanceof aCtor && + _.isFunction(bCtor) && bCtor instanceof bCtor) + && ('constructor' in a && 'constructor' in b)) { + return false; + } + } + // Assume equality for cyclic structures. The algorithm for detecting cyclic + // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`. + + // Initializing stack of traversed objects. + // It's done here since we only need them for objects and arrays comparison. + aStack = aStack || []; + bStack = bStack || []; + var length = aStack.length; + while (length--) { + // Linear search. Performance is inversely proportional to the number of + // unique nested structures. + if (aStack[length] === a) return bStack[length] === b; + } + + // Add the first object to the stack of traversed objects. + aStack.push(a); + bStack.push(b); + + // Recursively compare objects and arrays. + if (areArrays) { + // Compare array lengths to determine if a deep comparison is necessary. + length = a.length; + if (length !== b.length) return false; + // Deep compare the contents, ignoring non-numeric properties. + while (length--) { + if (!eq(a[length], b[length], aStack, bStack)) return false; + } + } else { + // Deep compare objects. + var keys = _.keys(a), key; + length = keys.length; + // Ensure that both objects contain the same number of properties before comparing deep equality. + if (_.keys(b).length !== length) return false; + while (length--) { + // Deep compare each member + key = keys[length]; + if (!(_.has(b, key) && eq(a[key], b[key], aStack, bStack))) return false; + } + } + // Remove the first object from the stack of traversed objects. + aStack.pop(); + bStack.pop(); + return true; + }; + + // Perform a deep comparison to check if two objects are equal. + _.isEqual = function(a, b) { + return eq(a, b); + }; + + // Is a given array, string, or object empty? + // An "empty" object has no enumerable own-properties. + _.isEmpty = function(obj) { + if (obj == null) return true; + if (isArrayLike(obj) && (_.isArray(obj) || _.isString(obj) || _.isArguments(obj))) return obj.length === 0; + return _.keys(obj).length === 0; + }; + + // Is a given value a DOM element? + _.isElement = function(obj) { + return !!(obj && obj.nodeType === 1); + }; + + // Is a given value an array? + // Delegates to ECMA5's native Array.isArray + _.isArray = nativeIsArray || function(obj) { + return toString.call(obj) === '[object Array]'; + }; + + // Is a given variable an object? + _.isObject = function(obj) { + var type = typeof obj; + return type === 'function' || type === 'object' && !!obj; + }; + + // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp, isError. + _.each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Error'], function(name) { + _['is' + name] = function(obj) { + return toString.call(obj) === '[object ' + name + ']'; + }; + }); + + // Define a fallback version of the method in browsers (ahem, IE < 9), where + // there isn't any inspectable "Arguments" type. + if (!_.isArguments(arguments)) { + _.isArguments = function(obj) { + return _.has(obj, 'callee'); + }; + } + + // Optimize `isFunction` if appropriate. Work around some typeof bugs in old v8, + // IE 11 (#1621), and in Safari 8 (#1929). + if (typeof /./ != 'function' && typeof Int8Array != 'object') { + _.isFunction = function(obj) { + return typeof obj == 'function' || false; + }; + } + + // Is a given object a finite number? + _.isFinite = function(obj) { + return isFinite(obj) && !isNaN(parseFloat(obj)); + }; + + // Is the given value `NaN`? (NaN is the only number which does not equal itself). + _.isNaN = function(obj) { + return _.isNumber(obj) && obj !== +obj; + }; + + // Is a given value a boolean? + _.isBoolean = function(obj) { + return obj === true || obj === false || toString.call(obj) === '[object Boolean]'; + }; + + // Is a given value equal to null? + _.isNull = function(obj) { + return obj === null; + }; + + // Is a given variable undefined? + _.isUndefined = function(obj) { + return obj === void 0; + }; + + // Shortcut function for checking if an object has a given property directly + // on itself (in other words, not on a prototype). + _.has = function(obj, key) { + return obj != null && hasOwnProperty.call(obj, key); + }; + + // Utility Functions + // ----------------- + + // Run Underscore.js in *noConflict* mode, returning the `_` variable to its + // previous owner. Returns a reference to the Underscore object. + _.noConflict = function() { + root._ = previousUnderscore; + return this; + }; + + // Keep the identity function around for default iteratees. + _.identity = function(value) { + return value; + }; + + // Predicate-generating functions. Often useful outside of Underscore. + _.constant = function(value) { + return function() { + return value; + }; + }; + + _.noop = function(){}; + + _.property = property; + + // Generates a function for a given object that returns a given property. + _.propertyOf = function(obj) { + return obj == null ? function(){} : function(key) { + return obj[key]; + }; + }; + + // Returns a predicate for checking whether an object has a given set of + // `key:value` pairs. + _.matcher = _.matches = function(attrs) { + attrs = _.extendOwn({}, attrs); + return function(obj) { + return _.isMatch(obj, attrs); + }; + }; + + // Run a function **n** times. + _.times = function(n, iteratee, context) { + var accum = Array(Math.max(0, n)); + iteratee = optimizeCb(iteratee, context, 1); + for (var i = 0; i < n; i++) accum[i] = iteratee(i); + return accum; + }; + + // Return a random integer between min and max (inclusive). + _.random = function(min, max) { + if (max == null) { + max = min; + min = 0; + } + return min + Math.floor(Math.random() * (max - min + 1)); + }; + + // A (possibly faster) way to get the current timestamp as an integer. + _.now = Date.now || function() { + return new Date().getTime(); + }; + + // List of HTML entities for escaping. + var escapeMap = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''', + '`': '`' + }; + var unescapeMap = _.invert(escapeMap); + + // Functions for escaping and unescaping strings to/from HTML interpolation. + var createEscaper = function(map) { + var escaper = function(match) { + return map[match]; + }; + // Regexes for identifying a key that needs to be escaped + var source = '(?:' + _.keys(map).join('|') + ')'; + var testRegexp = RegExp(source); + var replaceRegexp = RegExp(source, 'g'); + return function(string) { + string = string == null ? '' : '' + string; + return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string; + }; + }; + _.escape = createEscaper(escapeMap); + _.unescape = createEscaper(unescapeMap); + + // If the value of the named `property` is a function then invoke it with the + // `object` as context; otherwise, return it. + _.result = function(object, property, fallback) { + var value = object == null ? void 0 : object[property]; + if (value === void 0) { + value = fallback; + } + return _.isFunction(value) ? value.call(object) : value; + }; + + // Generate a unique integer id (unique within the entire client session). + // Useful for temporary DOM ids. + var idCounter = 0; + _.uniqueId = function(prefix) { + var id = ++idCounter + ''; + return prefix ? prefix + id : id; + }; + + // By default, Underscore uses ERB-style template delimiters, change the + // following template settings to use alternative delimiters. + _.templateSettings = { + evaluate : /<%([\s\S]+?)%>/g, + interpolate : /<%=([\s\S]+?)%>/g, + escape : /<%-([\s\S]+?)%>/g + }; + + // When customizing `templateSettings`, if you don't want to define an + // interpolation, evaluation or escaping regex, we need one that is + // guaranteed not to match. + var noMatch = /(.)^/; + + // Certain characters need to be escaped so that they can be put into a + // string literal. + var escapes = { + "'": "'", + '\\': '\\', + '\r': 'r', + '\n': 'n', + '\u2028': 'u2028', + '\u2029': 'u2029' + }; + + var escaper = /\\|'|\r|\n|\u2028|\u2029/g; + + var escapeChar = function(match) { + return '\\' + escapes[match]; + }; + + // JavaScript micro-templating, similar to John Resig's implementation. + // Underscore templating handles arbitrary delimiters, preserves whitespace, + // and correctly escapes quotes within interpolated code. + // NB: `oldSettings` only exists for backwards compatibility. + _.template = function(text, settings, oldSettings) { + if (!settings && oldSettings) settings = oldSettings; + settings = _.defaults({}, settings, _.templateSettings); + + // Combine delimiters into one regular expression via alternation. + var matcher = RegExp([ + (settings.escape || noMatch).source, + (settings.interpolate || noMatch).source, + (settings.evaluate || noMatch).source + ].join('|') + '|$', 'g'); + + // Compile the template source, escaping string literals appropriately. + var index = 0; + var source = "__p+='"; + text.replace(matcher, function(match, escape, interpolate, evaluate, offset) { + source += text.slice(index, offset).replace(escaper, escapeChar); + index = offset + match.length; + + if (escape) { + source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'"; + } else if (interpolate) { + source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'"; + } else if (evaluate) { + source += "';\n" + evaluate + "\n__p+='"; + } + + // Adobe VMs need the match returned to produce the correct offest. + return match; + }); + source += "';\n"; + + // If a variable is not specified, place data values in local scope. + if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n'; + + source = "var __t,__p='',__j=Array.prototype.join," + + "print=function(){__p+=__j.call(arguments,'');};\n" + + source + 'return __p;\n'; + + try { + var render = new Function(settings.variable || 'obj', '_', source); + } catch (e) { + e.source = source; + throw e; + } + + var template = function(data) { + return render.call(this, data, _); + }; + + // Provide the compiled source as a convenience for precompilation. + var argument = settings.variable || 'obj'; + template.source = 'function(' + argument + '){\n' + source + '}'; + + return template; + }; + + // Add a "chain" function. Start chaining a wrapped Underscore object. + _.chain = function(obj) { + var instance = _(obj); + instance._chain = true; + return instance; + }; + + // OOP + // --------------- + // If Underscore is called as a function, it returns a wrapped object that + // can be used OO-style. This wrapper holds altered versions of all the + // underscore functions. Wrapped objects may be chained. + + // Helper function to continue chaining intermediate results. + var result = function(instance, obj) { + return instance._chain ? _(obj).chain() : obj; + }; + + // Add your own custom functions to the Underscore object. + _.mixin = function(obj) { + _.each(_.functions(obj), function(name) { + var func = _[name] = obj[name]; + _.prototype[name] = function() { + var args = [this._wrapped]; + push.apply(args, arguments); + return result(this, func.apply(_, args)); + }; + }); + }; + + // Add all of the Underscore functions to the wrapper object. + _.mixin(_); + + // Add all mutator Array functions to the wrapper. + _.each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) { + var method = ArrayProto[name]; + _.prototype[name] = function() { + var obj = this._wrapped; + method.apply(obj, arguments); + if ((name === 'shift' || name === 'splice') && obj.length === 0) delete obj[0]; + return result(this, obj); + }; + }); + + // Add all accessor Array functions to the wrapper. + _.each(['concat', 'join', 'slice'], function(name) { + var method = ArrayProto[name]; + _.prototype[name] = function() { + return result(this, method.apply(this._wrapped, arguments)); + }; + }); + + // Extracts the result from a wrapped and chained object. + _.prototype.value = function() { + return this._wrapped; + }; + + // Provide unwrapping proxy for some methods used in engine operations + // such as arithmetic and JSON stringification. + _.prototype.valueOf = _.prototype.toJSON = _.prototype.value; + + _.prototype.toString = function() { + return '' + this._wrapped; + }; + + // AMD registration happens at the end for compatibility with AMD loaders + // that may not enforce next-turn semantics on modules. Even though general + // practice for AMD registration is to be anonymous, underscore registers + // as a named module because, like jQuery, it is a base library that is + // popular enough to be bundled in a third party lib, but not be part of + // an AMD load request. Those cases could generate an error when an + // anonymous define() is called outside of a loader request. + if (typeof define === 'function' && define.amd) { + define('underscore', [], function() { + return _; + }); + } +}.call(this)); + +},{}],26:[function(require,module,exports){ +arguments[4][19][0].apply(exports,arguments) +},{"dup":19}],27:[function(require,module,exports){ +module.exports = function isBuffer(arg) { + return arg && typeof arg === 'object' + && typeof arg.copy === 'function' + && typeof arg.fill === 'function' + && typeof arg.readUInt8 === 'function'; +} +},{}],28:[function(require,module,exports){ +(function (process,global){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var formatRegExp = /%[sdj%]/g; +exports.format = function(f) { + if (!isString(f)) { + var objects = []; + for (var i = 0; i < arguments.length; i++) { + objects.push(inspect(arguments[i])); + } + return objects.join(' '); + } + + var i = 1; + var args = arguments; + var len = args.length; + var str = String(f).replace(formatRegExp, function(x) { + if (x === '%%') return '%'; + if (i >= len) return x; + switch (x) { + case '%s': return String(args[i++]); + case '%d': return Number(args[i++]); + case '%j': + try { + return JSON.stringify(args[i++]); + } catch (_) { + return '[Circular]'; + } + default: + return x; + } + }); + for (var x = args[i]; i < len; x = args[++i]) { + if (isNull(x) || !isObject(x)) { + str += ' ' + x; + } else { + str += ' ' + inspect(x); + } + } + return str; +}; + + +// Mark that a method should not be used. +// Returns a modified function which warns once by default. +// If --no-deprecation is set, then it is a no-op. +exports.deprecate = function(fn, msg) { + // Allow for deprecating things in the process of starting up. + if (isUndefined(global.process)) { + return function() { + return exports.deprecate(fn, msg).apply(this, arguments); + }; + } + + if (process.noDeprecation === true) { + return fn; + } + + var warned = false; + function deprecated() { + if (!warned) { + if (process.throwDeprecation) { + throw new Error(msg); + } else if (process.traceDeprecation) { + console.trace(msg); + } else { + console.error(msg); + } + warned = true; + } + return fn.apply(this, arguments); + } + + return deprecated; +}; + + +var debugs = {}; +var debugEnviron; +exports.debuglog = function(set) { + if (isUndefined(debugEnviron)) + debugEnviron = process.env.NODE_DEBUG || ''; + set = set.toUpperCase(); + if (!debugs[set]) { + if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) { + var pid = process.pid; + debugs[set] = function() { + var msg = exports.format.apply(exports, arguments); + console.error('%s %d: %s', set, pid, msg); + }; + } else { + debugs[set] = function() {}; + } + } + return debugs[set]; +}; + + +/** + * Echos the value of a value. Trys to print the value out + * in the best way possible given the different types. + * + * @param {Object} obj The object to print out. + * @param {Object} opts Optional options object that alters the output. + */ +/* legacy: obj, showHidden, depth, colors*/ +function inspect(obj, opts) { + // default options + var ctx = { + seen: [], + stylize: stylizeNoColor + }; + // legacy... + if (arguments.length >= 3) ctx.depth = arguments[2]; + if (arguments.length >= 4) ctx.colors = arguments[3]; + if (isBoolean(opts)) { + // legacy... + ctx.showHidden = opts; + } else if (opts) { + // got an "options" object + exports._extend(ctx, opts); + } + // set default options + if (isUndefined(ctx.showHidden)) ctx.showHidden = false; + if (isUndefined(ctx.depth)) ctx.depth = 2; + if (isUndefined(ctx.colors)) ctx.colors = false; + if (isUndefined(ctx.customInspect)) ctx.customInspect = true; + if (ctx.colors) ctx.stylize = stylizeWithColor; + return formatValue(ctx, obj, ctx.depth); +} +exports.inspect = inspect; + + +// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics +inspect.colors = { + 'bold' : [1, 22], + 'italic' : [3, 23], + 'underline' : [4, 24], + 'inverse' : [7, 27], + 'white' : [37, 39], + 'grey' : [90, 39], + 'black' : [30, 39], + 'blue' : [34, 39], + 'cyan' : [36, 39], + 'green' : [32, 39], + 'magenta' : [35, 39], + 'red' : [31, 39], + 'yellow' : [33, 39] +}; + +// Don't use 'blue' not visible on cmd.exe +inspect.styles = { + 'special': 'cyan', + 'number': 'yellow', + 'boolean': 'yellow', + 'undefined': 'grey', + 'null': 'bold', + 'string': 'green', + 'date': 'magenta', + // "name": intentionally not styling + 'regexp': 'red' +}; + + +function stylizeWithColor(str, styleType) { + var style = inspect.styles[styleType]; + + if (style) { + return '\u001b[' + inspect.colors[style][0] + 'm' + str + + '\u001b[' + inspect.colors[style][1] + 'm'; + } else { + return str; + } +} + + +function stylizeNoColor(str, styleType) { + return str; +} + + +function arrayToHash(array) { + var hash = {}; + + array.forEach(function(val, idx) { + hash[val] = true; + }); + + return hash; +} + + +function formatValue(ctx, value, recurseTimes) { + // Provide a hook for user-specified inspect functions. + // Check that value is an object with an inspect function on it + if (ctx.customInspect && + value && + isFunction(value.inspect) && + // Filter out the util module, it's inspect function is special + value.inspect !== exports.inspect && + // Also filter out any prototype objects using the circular check. + !(value.constructor && value.constructor.prototype === value)) { + var ret = value.inspect(recurseTimes, ctx); + if (!isString(ret)) { + ret = formatValue(ctx, ret, recurseTimes); + } + return ret; + } + + // Primitive types cannot have properties + var primitive = formatPrimitive(ctx, value); + if (primitive) { + return primitive; + } + + // Look up the keys of the object. + var keys = Object.keys(value); + var visibleKeys = arrayToHash(keys); + + if (ctx.showHidden) { + keys = Object.getOwnPropertyNames(value); + } + + // IE doesn't make error fields non-enumerable + // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx + if (isError(value) + && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) { + return formatError(value); + } + + // Some type of object without properties can be shortcutted. + if (keys.length === 0) { + if (isFunction(value)) { + var name = value.name ? ': ' + value.name : ''; + return ctx.stylize('[Function' + name + ']', 'special'); + } + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } + if (isDate(value)) { + return ctx.stylize(Date.prototype.toString.call(value), 'date'); + } + if (isError(value)) { + return formatError(value); + } + } + + var base = '', array = false, braces = ['{', '}']; + + // Make Array say that they are Array + if (isArray(value)) { + array = true; + braces = ['[', ']']; + } + + // Make functions say that they are functions + if (isFunction(value)) { + var n = value.name ? ': ' + value.name : ''; + base = ' [Function' + n + ']'; + } + + // Make RegExps say that they are RegExps + if (isRegExp(value)) { + base = ' ' + RegExp.prototype.toString.call(value); + } + + // Make dates with properties first say the date + if (isDate(value)) { + base = ' ' + Date.prototype.toUTCString.call(value); + } + + // Make error with message first say the error + if (isError(value)) { + base = ' ' + formatError(value); + } + + if (keys.length === 0 && (!array || value.length == 0)) { + return braces[0] + base + braces[1]; + } + + if (recurseTimes < 0) { + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } else { + return ctx.stylize('[Object]', 'special'); + } + } + + ctx.seen.push(value); + + var output; + if (array) { + output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); + } else { + output = keys.map(function(key) { + return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); + }); + } + + ctx.seen.pop(); + + return reduceToSingleString(output, base, braces); +} + + +function formatPrimitive(ctx, value) { + if (isUndefined(value)) + return ctx.stylize('undefined', 'undefined'); + if (isString(value)) { + var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') + .replace(/'/g, "\\'") + .replace(/\\"/g, '"') + '\''; + return ctx.stylize(simple, 'string'); + } + if (isNumber(value)) + return ctx.stylize('' + value, 'number'); + if (isBoolean(value)) + return ctx.stylize('' + value, 'boolean'); + // For some reason typeof null is "object", so special case here. + if (isNull(value)) + return ctx.stylize('null', 'null'); +} + + +function formatError(value) { + return '[' + Error.prototype.toString.call(value) + ']'; +} + + +function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { + var output = []; + for (var i = 0, l = value.length; i < l; ++i) { + if (hasOwnProperty(value, String(i))) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + String(i), true)); + } else { + output.push(''); + } + } + keys.forEach(function(key) { + if (!key.match(/^\d+$/)) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + key, true)); + } + }); + return output; +} + + +function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { + var name, str, desc; + desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] }; + if (desc.get) { + if (desc.set) { + str = ctx.stylize('[Getter/Setter]', 'special'); + } else { + str = ctx.stylize('[Getter]', 'special'); + } + } else { + if (desc.set) { + str = ctx.stylize('[Setter]', 'special'); + } + } + if (!hasOwnProperty(visibleKeys, key)) { + name = '[' + key + ']'; + } + if (!str) { + if (ctx.seen.indexOf(desc.value) < 0) { + if (isNull(recurseTimes)) { + str = formatValue(ctx, desc.value, null); + } else { + str = formatValue(ctx, desc.value, recurseTimes - 1); + } + if (str.indexOf('\n') > -1) { + if (array) { + str = str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n').substr(2); + } else { + str = '\n' + str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n'); + } + } + } else { + str = ctx.stylize('[Circular]', 'special'); + } + } + if (isUndefined(name)) { + if (array && key.match(/^\d+$/)) { + return str; + } + name = JSON.stringify('' + key); + if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { + name = name.substr(1, name.length - 2); + name = ctx.stylize(name, 'name'); + } else { + name = name.replace(/'/g, "\\'") + .replace(/\\"/g, '"') + .replace(/(^"|"$)/g, "'"); + name = ctx.stylize(name, 'string'); + } + } + + return name + ': ' + str; +} + + +function reduceToSingleString(output, base, braces) { + var numLinesEst = 0; + var length = output.reduce(function(prev, cur) { + numLinesEst++; + if (cur.indexOf('\n') >= 0) numLinesEst++; + return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1; + }, 0); + + if (length > 60) { + return braces[0] + + (base === '' ? '' : base + '\n ') + + ' ' + + output.join(',\n ') + + ' ' + + braces[1]; + } + + return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; +} + + +// NOTE: These type checking functions intentionally don't use `instanceof` +// because it is fragile and can be easily faked with `Object.create()`. +function isArray(ar) { + return Array.isArray(ar); +} +exports.isArray = isArray; + +function isBoolean(arg) { + return typeof arg === 'boolean'; +} +exports.isBoolean = isBoolean; + +function isNull(arg) { + return arg === null; +} +exports.isNull = isNull; + +function isNullOrUndefined(arg) { + return arg == null; +} +exports.isNullOrUndefined = isNullOrUndefined; + +function isNumber(arg) { + return typeof arg === 'number'; +} +exports.isNumber = isNumber; + +function isString(arg) { + return typeof arg === 'string'; +} +exports.isString = isString; + +function isSymbol(arg) { + return typeof arg === 'symbol'; +} +exports.isSymbol = isSymbol; + +function isUndefined(arg) { + return arg === void 0; +} +exports.isUndefined = isUndefined; + +function isRegExp(re) { + return isObject(re) && objectToString(re) === '[object RegExp]'; +} +exports.isRegExp = isRegExp; + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} +exports.isObject = isObject; + +function isDate(d) { + return isObject(d) && objectToString(d) === '[object Date]'; +} +exports.isDate = isDate; + +function isError(e) { + return isObject(e) && + (objectToString(e) === '[object Error]' || e instanceof Error); +} +exports.isError = isError; + +function isFunction(arg) { + return typeof arg === 'function'; +} +exports.isFunction = isFunction; + +function isPrimitive(arg) { + return arg === null || + typeof arg === 'boolean' || + typeof arg === 'number' || + typeof arg === 'string' || + typeof arg === 'symbol' || // ES6 symbol + typeof arg === 'undefined'; +} +exports.isPrimitive = isPrimitive; + +exports.isBuffer = require('./support/isBuffer'); + +function objectToString(o) { + return Object.prototype.toString.call(o); +} + + +function pad(n) { + return n < 10 ? '0' + n.toString(10) : n.toString(10); +} + + +var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', + 'Oct', 'Nov', 'Dec']; + +// 26 Feb 16:19:34 +function timestamp() { + var d = new Date(); + var time = [pad(d.getHours()), + pad(d.getMinutes()), + pad(d.getSeconds())].join(':'); + return [d.getDate(), months[d.getMonth()], time].join(' '); +} + + +// log is just a thin wrapper to console.log that prepends a timestamp +exports.log = function() { + console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments)); +}; + + +/** + * Inherit the prototype methods from one constructor into another. + * + * The Function.prototype.inherits from lang.js rewritten as a standalone + * function (not on Function.prototype). NOTE: If this file is to be loaded + * during bootstrapping this function needs to be rewritten using some native + * functions as prototype setup using normal JavaScript does not work as + * expected during bootstrapping (see mirror.js in r114903). + * + * @param {function} ctor Constructor function which needs to inherit the + * prototype. + * @param {function} superCtor Constructor function to inherit prototype from. + */ +exports.inherits = require('inherits'); + +exports._extend = function(origin, add) { + // Don't do anything if add isn't an object + if (!add || !isObject(add)) return origin; + + var keys = Object.keys(add); + var i = keys.length; + while (i--) { + origin[keys[i]] = add[keys[i]]; + } + return origin; +}; + +function hasOwnProperty(obj, prop) { + return Object.prototype.hasOwnProperty.call(obj, prop); +} + +}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./support/isBuffer":27,"_process":24,"inherits":26}],29:[function(require,module,exports){ +// Returns a wrapper function that returns a wrapped callback +// The wrapper function should do some stuff, and return a +// presumably different callback function. +// This makes sure that own properties are retained, so that +// decorations and such are not lost along the way. +module.exports = wrappy +function wrappy (fn, cb) { + if (fn && cb) return wrappy(fn)(cb) + + if (typeof fn !== 'function') + throw new TypeError('need wrapper function') + + Object.keys(fn).forEach(function (k) { + wrapper[k] = fn[k] + }) + + return wrapper + + function wrapper() { + var args = new Array(arguments.length) + for (var i = 0; i < args.length; i++) { + args[i] = arguments[i] + } + var ret = fn.apply(this, args) + var cb = args[args.length-1] + if (typeof ret === 'function' && ret !== cb) { + Object.keys(cb).forEach(function (k) { + ret[k] = cb[k] + }) + } + return ret + } +} + +},{}]},{},[7])(7) +}); \ No newline at end of file diff --git a/modules/freetype2/docs/reference/assets/javascripts/workers/search.477d984a.min.js b/modules/freetype2/docs/reference/assets/javascripts/workers/search.477d984a.min.js new file mode 100644 index 0000000000..07714b6ab1 --- /dev/null +++ b/modules/freetype2/docs/reference/assets/javascripts/workers/search.477d984a.min.js @@ -0,0 +1,48 @@ +(()=>{var le=Object.create;var U=Object.defineProperty;var he=Object.getOwnPropertyDescriptor;var de=Object.getOwnPropertyNames;var fe=Object.getPrototypeOf,pe=Object.prototype.hasOwnProperty;var ge=t=>U(t,"__esModule",{value:!0});var q=(t,e)=>()=>(e||t((e={exports:{}}).exports,e),e.exports);var ye=(t,e,r)=>{if(e&&typeof e=="object"||typeof e=="function")for(let n of de(e))!pe.call(t,n)&&n!=="default"&&U(t,n,{get:()=>e[n],enumerable:!(r=he(e,n))||r.enumerable});return t},Y=t=>ye(ge(U(t!=null?le(fe(t)):{},"default",t&&t.__esModule&&"default"in t?{get:()=>t.default,enumerable:!0}:{value:t,enumerable:!0})),t);var z=(t,e,r)=>new Promise((n,i)=>{var s=u=>{try{a(r.next(u))}catch(c){i(c)}},o=u=>{try{a(r.throw(u))}catch(c){i(c)}},a=u=>u.done?n(u.value):Promise.resolve(u.value).then(s,o);a((r=r.apply(t,e)).next())});var X=q((G,J)=>{/** + * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9 + * Copyright (C) 2020 Oliver Nightingale + * @license MIT + */(function(){var t=function(e){var r=new t.Builder;return r.pipeline.add(t.trimmer,t.stopWordFilter,t.stemmer),r.searchPipeline.add(t.stemmer),e.call(r,r),r.build()};t.version="2.3.9";/*! + * lunr.utils + * Copyright (C) 2020 Oliver Nightingale + */t.utils={},t.utils.warn=function(e){return function(r){e.console&&console.warn&&console.warn(r)}}(this),t.utils.asString=function(e){return e==null?"":e.toString()},t.utils.clone=function(e){if(e==null)return e;for(var r=Object.create(null),n=Object.keys(e),i=0;i0){var d=t.utils.clone(r)||{};d.position=[a,c],d.index=s.length,s.push(new t.Token(n.slice(a,o),d))}a=o+1}}return s},t.tokenizer.separator=/[\s\-]+/;/*! + * lunr.Pipeline + * Copyright (C) 2020 Oliver Nightingale + */t.Pipeline=function(){this._stack=[]},t.Pipeline.registeredFunctions=Object.create(null),t.Pipeline.registerFunction=function(e,r){r in this.registeredFunctions&&t.utils.warn("Overwriting existing registered function: "+r),e.label=r,t.Pipeline.registeredFunctions[e.label]=e},t.Pipeline.warnIfFunctionNotRegistered=function(e){var r=e.label&&e.label in this.registeredFunctions;r||t.utils.warn(`Function is not registered with pipeline. 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this.pos1&&(e.backup(),e.emit(t.QueryLexer.TERM)),e.ignore(),e.more())return t.QueryLexer.lexText},t.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.EDIT_DISTANCE),t.QueryLexer.lexText},t.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.BOOST),t.QueryLexer.lexText},t.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(t.QueryLexer.TERM)},t.QueryLexer.termSeparator=t.tokenizer.separator,t.QueryLexer.lexText=function(e){for(;;){var r=e.next();if(r==t.QueryLexer.EOS)return t.QueryLexer.lexEOS;if(r.charCodeAt(0)==92){e.escapeCharacter();continue}if(r==":")return t.QueryLexer.lexField;if(r=="~")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexEditDistance;if(r=="^")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexBoost;if(r=="+"&&e.width()===1||r=="-"&&e.width()===1)return e.emit(t.QueryLexer.PRESENCE),t.QueryLexer.lexText;if(r.match(t.QueryLexer.termSeparator))return t.QueryLexer.lexTerm}},t.QueryParser=function(e,r){this.lexer=new t.QueryLexer(e),this.query=r,this.currentClause={},this.lexemeIdx=0},t.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=t.QueryParser.parseClause;e;)e=e(this);return this.query},t.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},t.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},t.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},t.QueryParser.parseClause=function(e){var r=e.peekLexeme();if(r!=null)switch(r.type){case t.QueryLexer.PRESENCE:return t.QueryParser.parsePresence;case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var n="expected either a field or a term, found "+r.type;throw r.str.length>=1&&(n+=" with value '"+r.str+"'"),new t.QueryParseError(n,r.start,r.end)}},t.QueryParser.parsePresence=function(e){var r=e.consumeLexeme();if(r!=null){switch(r.str){case"-":e.currentClause.presence=t.Query.presence.PROHIBITED;break;case"+":e.currentClause.presence=t.Query.presence.REQUIRED;break;default:var n="unrecognised presence operator'"+r.str+"'";throw new t.QueryParseError(n,r.start,r.end)}var i=e.peekLexeme();if(i==null){var n="expecting term or field, found nothing";throw new t.QueryParseError(n,r.start,r.end)}switch(i.type){case t.QueryLexer.FIELD:return t.QueryParser.parseField;case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var n="expecting term or field, found '"+i.type+"'";throw new t.QueryParseError(n,i.start,i.end)}}},t.QueryParser.parseField=function(e){var r=e.consumeLexeme();if(r!=null){if(e.query.allFields.indexOf(r.str)==-1){var n=e.query.allFields.map(function(o){return"'"+o+"'"}).join(", "),i="unrecognised field '"+r.str+"', possible fields: "+n;throw new t.QueryParseError(i,r.start,r.end)}e.currentClause.fields=[r.str];var s=e.peekLexeme();if(s==null){var i="expecting term, found nothing";throw new t.QueryParseError(i,r.start,r.end)}switch(s.type){case t.QueryLexer.TERM:return t.QueryParser.parseTerm;default:var i="expecting term, found '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseTerm=function(e){var r=e.consumeLexeme();if(r!=null){e.currentClause.term=r.str.toLowerCase(),r.str.indexOf("*")!=-1&&(e.currentClause.usePipeline=!1);var n=e.peekLexeme();if(n==null){e.nextClause();return}switch(n.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+n.type+"'";throw new t.QueryParseError(i,n.start,n.end)}}},t.QueryParser.parseEditDistance=function(e){var r=e.consumeLexeme();if(r!=null){var n=parseInt(r.str,10);if(isNaN(n)){var i="edit distance must be numeric";throw new t.QueryParseError(i,r.start,r.end)}e.currentClause.editDistance=n;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},t.QueryParser.parseBoost=function(e){var r=e.consumeLexeme();if(r!=null){var n=parseInt(r.str,10);if(isNaN(n)){var i="boost must be numeric";throw new t.QueryParseError(i,r.start,r.end)}e.currentClause.boost=n;var s=e.peekLexeme();if(s==null){e.nextClause();return}switch(s.type){case t.QueryLexer.TERM:return e.nextClause(),t.QueryParser.parseTerm;case t.QueryLexer.FIELD:return e.nextClause(),t.QueryParser.parseField;case t.QueryLexer.EDIT_DISTANCE:return t.QueryParser.parseEditDistance;case t.QueryLexer.BOOST:return t.QueryParser.parseBoost;case t.QueryLexer.PRESENCE:return e.nextClause(),t.QueryParser.parsePresence;default:var i="Unexpected lexeme type '"+s.type+"'";throw new t.QueryParseError(i,s.start,s.end)}}},function(e,r){typeof define=="function"&&define.amd?define(r):typeof G=="object"?J.exports=r():e.lunr=r()}(this,function(){return t})})()});var K=q((we,Z)=>{/*! + * escape-html + * Copyright(c) 2012-2013 TJ Holowaychuk + * Copyright(c) 2015 Andreas Lubbe + * Copyright(c) 2015 Tiancheng "Timothy" Gu + * MIT Licensed + */"use strict";var me=/["'&<>]/;Z.exports=ve;function ve(t){var e=""+t,r=me.exec(e);if(!r)return e;var n,i="",s=0,o=0;for(s=r.index;s`${i}${s}`;return n=>{n=n.replace(/[\s*+\-:~^]+/g," ").trim();let i=new RegExp(`(^|${t.separator})(${n.replace(/[|\\{}()[\]^$+*?.-]/g,"\\$&").replace(e,"|")})`,"img");return s=>s.replace(i,r).replace(/<\/mark>(\s+)]*>/img,"$1")}}function ne(t){let e=new lunr.Query(["title","text"]);return new lunr.QueryParser(t,e).parse(),e.clauses}function ie(t,e){let r=new Set(t),n={};for(let i=0;i!n.has(i)))]}var W=class{constructor({config:e,docs:r,pipeline:n,index:i}){this.documents=te(r),this.highlight=re(e),lunr.tokenizer.separator=new RegExp(e.separator),typeof i=="undefined"?this.index=lunr(function(){e.lang.length===1&&e.lang[0]!=="en"?this.use(lunr[e.lang[0]]):e.lang.length>1&&this.use(lunr.multiLanguage(...e.lang));let s=xe(["trimmer","stopWordFilter","stemmer"],n);for(let o of e.lang.map(a=>a==="en"?lunr:lunr[a]))for(let a of s)this.pipeline.remove(o[a]),this.searchPipeline.remove(o[a]);this.field("title",{boost:1e3}),this.field("text"),this.ref("location");for(let o of r)this.add(o)}):this.index=lunr.Index.load(i)}search(e){if(e)try{let r=this.highlight(e),n=ne(e).filter(s=>s.presence!==lunr.Query.presence.PROHIBITED);return[...this.index.search(`${e}*`).reduce((s,{ref:o,score:a,matchData:u})=>{let c=this.documents.get(o);if(typeof c!="undefined"){let{location:d,title:y,text:p,parent:b}=c,m=ie(n,Object.keys(u.metadata)),Q=+!b+ +Object.values(m).every(f=>f);s.push({location:d,title:r(y),text:r(p),score:a*(1+Q),terms:m})}return s},[]).sort((s,o)=>o.score-s.score).reduce((s,o)=>{let a=this.documents.get(o.location);if(typeof a!="undefined"){let u="parent"in a?a.parent.location:a.location;s.set(u,[...s.get(u)||[],o])}return s},new Map).values()]}catch(r){console.warn(`Invalid query: ${e} \u2013 see https://bit.ly/2s3ChXG`)}return[]}};var R;(function(i){i[i.SETUP=0]="SETUP",i[i.READY=1]="READY",i[i.QUERY=2]="QUERY",i[i.RESULT=3]="RESULT"})(R||(R={}));var H;function Se(t){return z(this,null,function*(){let e="../lunr";if(typeof parent!="undefined"&&"IFrameWorker"in parent){let n=document.querySelector("script[src]"),[i]=n.src.split("/worker");e=e.replace("..",i)}let r=[];for(let n of t.lang){switch(n){case"ja":r.push(`${e}/tinyseg.js`);break;case"hi":case"th":r.push(`${e}/wordcut.js`);break}n!=="en"&&r.push(`${e}/min/lunr.${n}.min.js`)}t.lang.length>1&&r.push(`${e}/min/lunr.multi.min.js`),r.length&&(yield importScripts(`${e}/min/lunr.stemmer.support.min.js`,...r))})}function Qe(t){return z(this,null,function*(){switch(t.type){case R.SETUP:return yield Se(t.data.config),H=new W(t.data),{type:R.READY};case R.QUERY:return{type:R.RESULT,data:H?H.search(t.data):[]};default:throw new TypeError("Invalid message type")}})}self.lunr=se.default;addEventListener("message",t=>z(void 0,null,function*(){postMessage(yield Qe(t.data))}));})(); +//# sourceMappingURL=search.477d984a.min.js.map + diff --git a/modules/freetype2/docs/reference/assets/javascripts/workers/search.477d984a.min.js.map b/modules/freetype2/docs/reference/assets/javascripts/workers/search.477d984a.min.js.map new file mode 100644 index 0000000000..e1f2dd9c1c --- /dev/null +++ b/modules/freetype2/docs/reference/assets/javascripts/workers/search.477d984a.min.js.map @@ -0,0 +1,7 @@ +{ + "version": 3, + "sources": ["node_modules/lunr/lunr.js", "node_modules/escape-html/index.js", "src/assets/javascripts/integrations/search/worker/main/index.ts", "src/assets/javascripts/integrations/search/document/index.ts", "src/assets/javascripts/integrations/search/highlighter/index.ts", "src/assets/javascripts/integrations/search/query/_/index.ts", "src/assets/javascripts/integrations/search/_/index.ts", "src/assets/javascripts/integrations/search/worker/message/index.ts"], + "sourcesContent": ["/**\n * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9\n * Copyright (C) 2020 Oliver Nightingale\n * @license MIT\n */\n\n;(function(){\n\n/**\n * A convenience function for configuring and constructing\n * a new lunr Index.\n *\n * A lunr.Builder instance is created and the pipeline setup\n * with a trimmer, stop word filter and stemmer.\n *\n * This builder object is yielded to the configuration function\n * that is passed as a parameter, allowing the list of fields\n * and other builder parameters to be customised.\n *\n * All documents _must_ be added within the passed config function.\n *\n * @example\n * var idx = lunr(function () {\n * this.field('title')\n * this.field('body')\n * this.ref('id')\n *\n * documents.forEach(function (doc) {\n * this.add(doc)\n * }, this)\n * })\n *\n * @see {@link lunr.Builder}\n * @see {@link lunr.Pipeline}\n * @see {@link lunr.trimmer}\n * @see {@link lunr.stopWordFilter}\n * @see {@link lunr.stemmer}\n * @namespace {function} lunr\n */\nvar lunr = function (config) {\n var builder = new lunr.Builder\n\n builder.pipeline.add(\n lunr.trimmer,\n lunr.stopWordFilter,\n lunr.stemmer\n )\n\n builder.searchPipeline.add(\n lunr.stemmer\n )\n\n config.call(builder, builder)\n return builder.build()\n}\n\nlunr.version = \"2.3.9\"\n/*!\n * lunr.utils\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A namespace containing utils for the rest of the lunr library\n * @namespace lunr.utils\n */\nlunr.utils = {}\n\n/**\n * Print a warning message to the console.\n *\n * @param {String} message The message to be printed.\n * @memberOf lunr.utils\n * @function\n */\nlunr.utils.warn = (function (global) {\n /* eslint-disable no-console */\n return function (message) {\n if (global.console && console.warn) {\n console.warn(message)\n }\n }\n /* eslint-enable no-console */\n})(this)\n\n/**\n * Convert an object to a string.\n *\n * In the case of `null` and `undefined` the function returns\n * the empty string, in all other cases the result of calling\n * `toString` on the passed object is returned.\n *\n * @param {Any} obj The object to convert to a string.\n * @return {String} string representation of the passed object.\n * @memberOf lunr.utils\n */\nlunr.utils.asString = function (obj) {\n if (obj === void 0 || obj === null) {\n return \"\"\n } else {\n return obj.toString()\n }\n}\n\n/**\n * Clones an object.\n *\n * Will create a copy of an existing object such that any mutations\n * on the copy cannot affect the original.\n *\n * Only shallow objects are supported, passing a nested object to this\n * function will cause a TypeError.\n *\n * Objects with primitives, and arrays of primitives are supported.\n *\n * @param {Object} obj The object to clone.\n * @return {Object} a clone of the passed object.\n * @throws {TypeError} when a nested object is passed.\n * @memberOf Utils\n */\nlunr.utils.clone = function (obj) {\n if (obj === null || obj === undefined) {\n return obj\n }\n\n var clone = Object.create(null),\n keys = Object.keys(obj)\n\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i],\n val = obj[key]\n\n if (Array.isArray(val)) {\n clone[key] = val.slice()\n continue\n }\n\n if (typeof val === 'string' ||\n typeof val === 'number' ||\n typeof val === 'boolean') {\n clone[key] = val\n continue\n }\n\n throw new TypeError(\"clone is not deep and does not support nested objects\")\n }\n\n return clone\n}\nlunr.FieldRef = function (docRef, fieldName, stringValue) {\n this.docRef = docRef\n this.fieldName = fieldName\n this._stringValue = stringValue\n}\n\nlunr.FieldRef.joiner = \"/\"\n\nlunr.FieldRef.fromString = function (s) {\n var n = s.indexOf(lunr.FieldRef.joiner)\n\n if (n === -1) {\n throw \"malformed field ref string\"\n }\n\n var fieldRef = s.slice(0, n),\n docRef = s.slice(n + 1)\n\n return new lunr.FieldRef (docRef, fieldRef, s)\n}\n\nlunr.FieldRef.prototype.toString = function () {\n if (this._stringValue == undefined) {\n this._stringValue = this.fieldName + lunr.FieldRef.joiner + this.docRef\n }\n\n return this._stringValue\n}\n/*!\n * lunr.Set\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A lunr set.\n *\n * @constructor\n */\nlunr.Set = function (elements) {\n this.elements = Object.create(null)\n\n if (elements) {\n this.length = elements.length\n\n for (var i = 0; i < this.length; i++) {\n this.elements[elements[i]] = true\n }\n } else {\n this.length = 0\n }\n}\n\n/**\n * A complete set that contains all elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.complete = {\n intersect: function (other) {\n return other\n },\n\n union: function () {\n return this\n },\n\n contains: function () {\n return true\n }\n}\n\n/**\n * An empty set that contains no elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.empty = {\n intersect: function () {\n return this\n },\n\n union: function (other) {\n return other\n },\n\n contains: function () {\n return false\n }\n}\n\n/**\n * Returns true if this set contains the specified object.\n *\n * @param {object} object - Object whose presence in this set is to be tested.\n * @returns {boolean} - True if this set contains the specified object.\n */\nlunr.Set.prototype.contains = function (object) {\n return !!this.elements[object]\n}\n\n/**\n * Returns a new set containing only the elements that are present in both\n * this set and the specified set.\n *\n * @param {lunr.Set} other - set to intersect with this set.\n * @returns {lunr.Set} a new set that is the intersection of this and the specified set.\n */\n\nlunr.Set.prototype.intersect = function (other) {\n var a, b, elements, intersection = []\n\n if (other === lunr.Set.complete) {\n return this\n }\n\n if (other === lunr.Set.empty) {\n return other\n }\n\n if (this.length < other.length) {\n a = this\n b = other\n } else {\n a = other\n b = this\n }\n\n elements = Object.keys(a.elements)\n\n for (var i = 0; i < elements.length; i++) {\n var element = elements[i]\n if (element in b.elements) {\n intersection.push(element)\n }\n }\n\n return new lunr.Set (intersection)\n}\n\n/**\n * Returns a new set combining the elements of this and the specified set.\n *\n * @param {lunr.Set} other - set to union with this set.\n * @return {lunr.Set} a new set that is the union of this and the specified set.\n */\n\nlunr.Set.prototype.union = function (other) {\n if (other === lunr.Set.complete) {\n return lunr.Set.complete\n }\n\n if (other === lunr.Set.empty) {\n return this\n }\n\n return new lunr.Set(Object.keys(this.elements).concat(Object.keys(other.elements)))\n}\n/**\n * A function to calculate the inverse document frequency for\n * a posting. This is shared between the builder and the index\n *\n * @private\n * @param {object} posting - The posting for a given term\n * @param {number} documentCount - The total number of documents.\n */\nlunr.idf = function (posting, documentCount) {\n var documentsWithTerm = 0\n\n for (var fieldName in posting) {\n if (fieldName == '_index') continue // Ignore the term index, its not a field\n documentsWithTerm += Object.keys(posting[fieldName]).length\n }\n\n var x = (documentCount - documentsWithTerm + 0.5) / (documentsWithTerm + 0.5)\n\n return Math.log(1 + Math.abs(x))\n}\n\n/**\n * A token wraps a string representation of a token\n * as it is passed through the text processing pipeline.\n *\n * @constructor\n * @param {string} [str=''] - The string token being wrapped.\n * @param {object} [metadata={}] - Metadata associated with this token.\n */\nlunr.Token = function (str, metadata) {\n this.str = str || \"\"\n this.metadata = metadata || {}\n}\n\n/**\n * Returns the token string that is being wrapped by this object.\n *\n * @returns {string}\n */\nlunr.Token.prototype.toString = function () {\n return this.str\n}\n\n/**\n * A token update function is used when updating or optionally\n * when cloning a token.\n *\n * @callback lunr.Token~updateFunction\n * @param {string} str - The string representation of the token.\n * @param {Object} metadata - All metadata associated with this token.\n */\n\n/**\n * Applies the given function to the wrapped string token.\n *\n * @example\n * token.update(function (str, metadata) {\n * return str.toUpperCase()\n * })\n *\n * @param {lunr.Token~updateFunction} fn - A function to apply to the token string.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.update = function (fn) {\n this.str = fn(this.str, this.metadata)\n return this\n}\n\n/**\n * Creates a clone of this token. Optionally a function can be\n * applied to the cloned token.\n *\n * @param {lunr.Token~updateFunction} [fn] - An optional function to apply to the cloned token.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.clone = function (fn) {\n fn = fn || function (s) { return s }\n return new lunr.Token (fn(this.str, this.metadata), this.metadata)\n}\n/*!\n * lunr.tokenizer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A function for splitting a string into tokens ready to be inserted into\n * the search index. Uses `lunr.tokenizer.separator` to split strings, change\n * the value of this property to change how strings are split into tokens.\n *\n * This tokenizer will convert its parameter to a string by calling `toString` and\n * then will split this string on the character in `lunr.tokenizer.separator`.\n * Arrays will have their elements converted to strings and wrapped in a lunr.Token.\n *\n * Optional metadata can be passed to the tokenizer, this metadata will be cloned and\n * added as metadata to every token that is created from the object to be tokenized.\n *\n * @static\n * @param {?(string|object|object[])} obj - The object to convert into tokens\n * @param {?object} metadata - Optional metadata to associate with every token\n * @returns {lunr.Token[]}\n * @see {@link lunr.Pipeline}\n */\nlunr.tokenizer = function (obj, metadata) {\n if (obj == null || obj == undefined) {\n return []\n }\n\n if (Array.isArray(obj)) {\n return obj.map(function (t) {\n return new lunr.Token(\n lunr.utils.asString(t).toLowerCase(),\n lunr.utils.clone(metadata)\n )\n })\n }\n\n var str = obj.toString().toLowerCase(),\n len = str.length,\n tokens = []\n\n for (var sliceEnd = 0, sliceStart = 0; sliceEnd <= len; sliceEnd++) {\n var char = str.charAt(sliceEnd),\n sliceLength = sliceEnd - sliceStart\n\n if ((char.match(lunr.tokenizer.separator) || sliceEnd == len)) {\n\n if (sliceLength > 0) {\n var tokenMetadata = lunr.utils.clone(metadata) || {}\n tokenMetadata[\"position\"] = [sliceStart, sliceLength]\n tokenMetadata[\"index\"] = tokens.length\n\n tokens.push(\n new lunr.Token (\n str.slice(sliceStart, sliceEnd),\n tokenMetadata\n )\n )\n }\n\n sliceStart = sliceEnd + 1\n }\n\n }\n\n return tokens\n}\n\n/**\n * The separator used to split a string into tokens. Override this property to change the behaviour of\n * `lunr.tokenizer` behaviour when tokenizing strings. By default this splits on whitespace and hyphens.\n *\n * @static\n * @see lunr.tokenizer\n */\nlunr.tokenizer.separator = /[\\s\\-]+/\n/*!\n * lunr.Pipeline\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Pipelines maintain an ordered list of functions to be applied to all\n * tokens in documents entering the search index and queries being ran against\n * the index.\n *\n * An instance of lunr.Index created with the lunr shortcut will contain a\n * pipeline with a stop word filter and an English language stemmer. Extra\n * functions can be added before or after either of these functions or these\n * default functions can be removed.\n *\n * When run the pipeline will call each function in turn, passing a token, the\n * index of that token in the original list of all tokens and finally a list of\n * all the original tokens.\n *\n * The output of functions in the pipeline will be passed to the next function\n * in the pipeline. To exclude a token from entering the index the function\n * should return undefined, the rest of the pipeline will not be called with\n * this token.\n *\n * For serialisation of pipelines to work, all functions used in an instance of\n * a pipeline should be registered with lunr.Pipeline. Registered functions can\n * then be loaded. If trying to load a serialised pipeline that uses functions\n * that are not registered an error will be thrown.\n *\n * If not planning on serialising the pipeline then registering pipeline functions\n * is not necessary.\n *\n * @constructor\n */\nlunr.Pipeline = function () {\n this._stack = []\n}\n\nlunr.Pipeline.registeredFunctions = Object.create(null)\n\n/**\n * A pipeline function maps lunr.Token to lunr.Token. A lunr.Token contains the token\n * string as well as all known metadata. A pipeline function can mutate the token string\n * or mutate (or add) metadata for a given token.\n *\n * A pipeline function can indicate that the passed token should be discarded by returning\n * null, undefined or an empty string. This token will not be passed to any downstream pipeline\n * functions and will not be added to the index.\n *\n * Multiple tokens can be returned by returning an array of tokens. Each token will be passed\n * to any downstream pipeline functions and all will returned tokens will be added to the index.\n *\n * Any number of pipeline functions may be chained together using a lunr.Pipeline.\n *\n * @interface lunr.PipelineFunction\n * @param {lunr.Token} token - A token from the document being processed.\n * @param {number} i - The index of this token in the complete list of tokens for this document/field.\n * @param {lunr.Token[]} tokens - All tokens for this document/field.\n * @returns {(?lunr.Token|lunr.Token[])}\n */\n\n/**\n * Register a function with the pipeline.\n *\n * Functions that are used in the pipeline should be registered if the pipeline\n * needs to be serialised, or a serialised pipeline needs to be loaded.\n *\n * Registering a function does not add it to a pipeline, functions must still be\n * added to instances of the pipeline for them to be used when running a pipeline.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @param {String} label - The label to register this function with\n */\nlunr.Pipeline.registerFunction = function (fn, label) {\n if (label in this.registeredFunctions) {\n lunr.utils.warn('Overwriting existing registered function: ' + label)\n }\n\n fn.label = label\n lunr.Pipeline.registeredFunctions[fn.label] = fn\n}\n\n/**\n * Warns if the function is not registered as a Pipeline function.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @private\n */\nlunr.Pipeline.warnIfFunctionNotRegistered = function (fn) {\n var isRegistered = fn.label && (fn.label in this.registeredFunctions)\n\n if (!isRegistered) {\n lunr.utils.warn('Function is not registered with pipeline. This may cause problems when serialising the index.\\n', fn)\n }\n}\n\n/**\n * Loads a previously serialised pipeline.\n *\n * All functions to be loaded must already be registered with lunr.Pipeline.\n * If any function from the serialised data has not been registered then an\n * error will be thrown.\n *\n * @param {Object} serialised - The serialised pipeline to load.\n * @returns {lunr.Pipeline}\n */\nlunr.Pipeline.load = function (serialised) {\n var pipeline = new lunr.Pipeline\n\n serialised.forEach(function (fnName) {\n var fn = lunr.Pipeline.registeredFunctions[fnName]\n\n if (fn) {\n pipeline.add(fn)\n } else {\n throw new Error('Cannot load unregistered function: ' + fnName)\n }\n })\n\n return pipeline\n}\n\n/**\n * Adds new functions to the end of the pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction[]} functions - Any number of functions to add to the pipeline.\n */\nlunr.Pipeline.prototype.add = function () {\n var fns = Array.prototype.slice.call(arguments)\n\n fns.forEach(function (fn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n this._stack.push(fn)\n }, this)\n}\n\n/**\n * Adds a single function after a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.after = function (existingFn, newFn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n var pos = this._stack.indexOf(existingFn)\n if (pos == -1) {\n throw new Error('Cannot find existingFn')\n }\n\n pos = pos + 1\n this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Adds a single function before a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.before = function (existingFn, newFn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n var pos = this._stack.indexOf(existingFn)\n if (pos == -1) {\n throw new Error('Cannot find existingFn')\n }\n\n this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Removes a function from the pipeline.\n *\n * @param {lunr.PipelineFunction} fn The function to remove from the pipeline.\n */\nlunr.Pipeline.prototype.remove = function (fn) {\n var pos = this._stack.indexOf(fn)\n if (pos == -1) {\n return\n }\n\n this._stack.splice(pos, 1)\n}\n\n/**\n * Runs the current list of functions that make up the pipeline against the\n * passed tokens.\n *\n * @param {Array} tokens The tokens to run through the pipeline.\n * @returns {Array}\n */\nlunr.Pipeline.prototype.run = function (tokens) {\n var stackLength = this._stack.length\n\n for (var i = 0; i < stackLength; i++) {\n var fn = this._stack[i]\n var memo = []\n\n for (var j = 0; j < tokens.length; j++) {\n var result = fn(tokens[j], j, tokens)\n\n if (result === null || result === void 0 || result === '') continue\n\n if (Array.isArray(result)) {\n for (var k = 0; k < result.length; k++) {\n memo.push(result[k])\n }\n } else {\n memo.push(result)\n }\n }\n\n tokens = memo\n }\n\n return tokens\n}\n\n/**\n * Convenience method for passing a string through a pipeline and getting\n * strings out. This method takes care of wrapping the passed string in a\n * token and mapping the resulting tokens back to strings.\n *\n * @param {string} str - The string to pass through the pipeline.\n * @param {?object} metadata - Optional metadata to associate with the token\n * passed to the pipeline.\n * @returns {string[]}\n */\nlunr.Pipeline.prototype.runString = function (str, metadata) {\n var token = new lunr.Token (str, metadata)\n\n return this.run([token]).map(function (t) {\n return t.toString()\n })\n}\n\n/**\n * Resets the pipeline by removing any existing processors.\n *\n */\nlunr.Pipeline.prototype.reset = function () {\n this._stack = []\n}\n\n/**\n * Returns a representation of the pipeline ready for serialisation.\n *\n * Logs a warning if the function has not been registered.\n *\n * @returns {Array}\n */\nlunr.Pipeline.prototype.toJSON = function () {\n return this._stack.map(function (fn) {\n lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n\n return fn.label\n })\n}\n/*!\n * lunr.Vector\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A vector is used to construct the vector space of documents and queries. These\n * vectors support operations to determine the similarity between two documents or\n * a document and a query.\n *\n * Normally no parameters are required for initializing a vector, but in the case of\n * loading a previously dumped vector the raw elements can be provided to the constructor.\n *\n * For performance reasons vectors are implemented with a flat array, where an elements\n * index is immediately followed by its value. E.g. [index, value, index, value]. This\n * allows the underlying array to be as sparse as possible and still offer decent\n * performance when being used for vector calculations.\n *\n * @constructor\n * @param {Number[]} [elements] - The flat list of element index and element value pairs.\n */\nlunr.Vector = function (elements) {\n this._magnitude = 0\n this.elements = elements || []\n}\n\n\n/**\n * Calculates the position within the vector to insert a given index.\n *\n * This is used internally by insert and upsert. If there are duplicate indexes then\n * the position is returned as if the value for that index were to be updated, but it\n * is the callers responsibility to check whether there is a duplicate at that index\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @returns {Number}\n */\nlunr.Vector.prototype.positionForIndex = function (index) {\n // For an empty vector the tuple can be inserted at the beginning\n if (this.elements.length == 0) {\n return 0\n }\n\n var start = 0,\n end = this.elements.length / 2,\n sliceLength = end - start,\n pivotPoint = Math.floor(sliceLength / 2),\n pivotIndex = this.elements[pivotPoint * 2]\n\n while (sliceLength > 1) {\n if (pivotIndex < index) {\n start = pivotPoint\n }\n\n if (pivotIndex > index) {\n end = pivotPoint\n }\n\n if (pivotIndex == index) {\n break\n }\n\n sliceLength = end - start\n pivotPoint = start + Math.floor(sliceLength / 2)\n pivotIndex = this.elements[pivotPoint * 2]\n }\n\n if (pivotIndex == index) {\n return pivotPoint * 2\n }\n\n if (pivotIndex > index) {\n return pivotPoint * 2\n }\n\n if (pivotIndex < index) {\n return (pivotPoint + 1) * 2\n }\n}\n\n/**\n * Inserts an element at an index within the vector.\n *\n * Does not allow duplicates, will throw an error if there is already an entry\n * for this index.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n */\nlunr.Vector.prototype.insert = function (insertIdx, val) {\n this.upsert(insertIdx, val, function () {\n throw \"duplicate index\"\n })\n}\n\n/**\n * Inserts or updates an existing index within the vector.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n * @param {function} fn - A function that is called for updates, the existing value and the\n * requested value are passed as arguments\n */\nlunr.Vector.prototype.upsert = function (insertIdx, val, fn) {\n this._magnitude = 0\n var position = this.positionForIndex(insertIdx)\n\n if (this.elements[position] == insertIdx) {\n this.elements[position + 1] = fn(this.elements[position + 1], val)\n } else {\n this.elements.splice(position, 0, insertIdx, val)\n }\n}\n\n/**\n * Calculates the magnitude of this vector.\n *\n * @returns {Number}\n */\nlunr.Vector.prototype.magnitude = function () {\n if (this._magnitude) return this._magnitude\n\n var sumOfSquares = 0,\n elementsLength = this.elements.length\n\n for (var i = 1; i < elementsLength; i += 2) {\n var val = this.elements[i]\n sumOfSquares += val * val\n }\n\n return this._magnitude = Math.sqrt(sumOfSquares)\n}\n\n/**\n * Calculates the dot product of this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The vector to compute the dot product with.\n * @returns {Number}\n */\nlunr.Vector.prototype.dot = function (otherVector) {\n var dotProduct = 0,\n a = this.elements, b = otherVector.elements,\n aLen = a.length, bLen = b.length,\n aVal = 0, bVal = 0,\n i = 0, j = 0\n\n while (i < aLen && j < bLen) {\n aVal = a[i], bVal = b[j]\n if (aVal < bVal) {\n i += 2\n } else if (aVal > bVal) {\n j += 2\n } else if (aVal == bVal) {\n dotProduct += a[i + 1] * b[j + 1]\n i += 2\n j += 2\n }\n }\n\n return dotProduct\n}\n\n/**\n * Calculates the similarity between this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The other vector to calculate the\n * similarity with.\n * @returns {Number}\n */\nlunr.Vector.prototype.similarity = function (otherVector) {\n return this.dot(otherVector) / this.magnitude() || 0\n}\n\n/**\n * Converts the vector to an array of the elements within the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toArray = function () {\n var output = new Array (this.elements.length / 2)\n\n for (var i = 1, j = 0; i < this.elements.length; i += 2, j++) {\n output[j] = this.elements[i]\n }\n\n return output\n}\n\n/**\n * A JSON serializable representation of the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toJSON = function () {\n return this.elements\n}\n/* eslint-disable */\n/*!\n * lunr.stemmer\n * Copyright (C) 2020 Oliver Nightingale\n * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt\n */\n\n/**\n * lunr.stemmer is an english language stemmer, this is a JavaScript\n * implementation of the PorterStemmer taken from http://tartarus.org/~martin\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token - The string to stem\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n * @function\n */\nlunr.stemmer = (function(){\n var step2list = {\n \"ational\" : \"ate\",\n \"tional\" : \"tion\",\n \"enci\" : \"ence\",\n \"anci\" : \"ance\",\n \"izer\" : \"ize\",\n \"bli\" : \"ble\",\n \"alli\" : \"al\",\n \"entli\" : \"ent\",\n \"eli\" : \"e\",\n \"ousli\" : \"ous\",\n \"ization\" : \"ize\",\n \"ation\" : \"ate\",\n \"ator\" : \"ate\",\n \"alism\" : \"al\",\n \"iveness\" : \"ive\",\n \"fulness\" : \"ful\",\n \"ousness\" : \"ous\",\n \"aliti\" : \"al\",\n \"iviti\" : \"ive\",\n \"biliti\" : \"ble\",\n \"logi\" : \"log\"\n },\n\n step3list = {\n \"icate\" : \"ic\",\n \"ative\" : \"\",\n \"alize\" : \"al\",\n \"iciti\" : \"ic\",\n \"ical\" : \"ic\",\n \"ful\" : \"\",\n \"ness\" : \"\"\n },\n\n c = \"[^aeiou]\", // consonant\n v = \"[aeiouy]\", // vowel\n C = c + \"[^aeiouy]*\", // consonant sequence\n V = v + \"[aeiou]*\", // vowel sequence\n\n mgr0 = \"^(\" + C + \")?\" + V + C, // [C]VC... is m>0\n meq1 = \"^(\" + C + \")?\" + V + C + \"(\" + V + \")?$\", // [C]VC[V] is m=1\n mgr1 = \"^(\" + C + \")?\" + V + C + V + C, // [C]VCVC... is m>1\n s_v = \"^(\" + C + \")?\" + v; // vowel in stem\n\n var re_mgr0 = new RegExp(mgr0);\n var re_mgr1 = new RegExp(mgr1);\n var re_meq1 = new RegExp(meq1);\n var re_s_v = new RegExp(s_v);\n\n var re_1a = /^(.+?)(ss|i)es$/;\n var re2_1a = /^(.+?)([^s])s$/;\n var re_1b = /^(.+?)eed$/;\n var re2_1b = /^(.+?)(ed|ing)$/;\n var re_1b_2 = /.$/;\n var re2_1b_2 = /(at|bl|iz)$/;\n var re3_1b_2 = new RegExp(\"([^aeiouylsz])\\\\1$\");\n var re4_1b_2 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n var re_1c = /^(.+?[^aeiou])y$/;\n var re_2 = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;\n\n var re_3 = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;\n\n var re_4 = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;\n var re2_4 = /^(.+?)(s|t)(ion)$/;\n\n var re_5 = /^(.+?)e$/;\n var re_5_1 = /ll$/;\n var re3_5 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n var porterStemmer = function porterStemmer(w) {\n var stem,\n suffix,\n firstch,\n re,\n re2,\n re3,\n re4;\n\n if (w.length < 3) { return w; }\n\n firstch = w.substr(0,1);\n if (firstch == \"y\") {\n w = firstch.toUpperCase() + w.substr(1);\n }\n\n // Step 1a\n re = re_1a\n re2 = re2_1a;\n\n if (re.test(w)) { w = w.replace(re,\"$1$2\"); }\n else if (re2.test(w)) { w = w.replace(re2,\"$1$2\"); }\n\n // Step 1b\n re = re_1b;\n re2 = re2_1b;\n if (re.test(w)) {\n var fp = re.exec(w);\n re = re_mgr0;\n if (re.test(fp[1])) {\n re = re_1b_2;\n w = w.replace(re,\"\");\n }\n } else if (re2.test(w)) {\n var fp = re2.exec(w);\n stem = fp[1];\n re2 = re_s_v;\n if (re2.test(stem)) {\n w = stem;\n re2 = re2_1b_2;\n re3 = re3_1b_2;\n re4 = re4_1b_2;\n if (re2.test(w)) { w = w + \"e\"; }\n else if (re3.test(w)) { re = re_1b_2; w = w.replace(re,\"\"); }\n else if (re4.test(w)) { w = w + \"e\"; }\n }\n }\n\n // Step 1c - replace suffix y or Y by i if preceded by a non-vowel which is not the first letter of the word (so cry -> cri, by -> by, say -> say)\n re = re_1c;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n w = stem + \"i\";\n }\n\n // Step 2\n re = re_2;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n suffix = fp[2];\n re = re_mgr0;\n if (re.test(stem)) {\n w = stem + step2list[suffix];\n }\n }\n\n // Step 3\n re = re_3;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n suffix = fp[2];\n re = re_mgr0;\n if (re.test(stem)) {\n w = stem + step3list[suffix];\n }\n }\n\n // Step 4\n re = re_4;\n re2 = re2_4;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n re = re_mgr1;\n if (re.test(stem)) {\n w = stem;\n }\n } else if (re2.test(w)) {\n var fp = re2.exec(w);\n stem = fp[1] + fp[2];\n re2 = re_mgr1;\n if (re2.test(stem)) {\n w = stem;\n }\n }\n\n // Step 5\n re = re_5;\n if (re.test(w)) {\n var fp = re.exec(w);\n stem = fp[1];\n re = re_mgr1;\n re2 = re_meq1;\n re3 = re3_5;\n if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) {\n w = stem;\n }\n }\n\n re = re_5_1;\n re2 = re_mgr1;\n if (re.test(w) && re2.test(w)) {\n re = re_1b_2;\n w = w.replace(re,\"\");\n }\n\n // and turn initial Y back to y\n\n if (firstch == \"y\") {\n w = firstch.toLowerCase() + w.substr(1);\n }\n\n return w;\n };\n\n return function (token) {\n return token.update(porterStemmer);\n }\n})();\n\nlunr.Pipeline.registerFunction(lunr.stemmer, 'stemmer')\n/*!\n * lunr.stopWordFilter\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.generateStopWordFilter builds a stopWordFilter function from the provided\n * list of stop words.\n *\n * The built in lunr.stopWordFilter is built using this generator and can be used\n * to generate custom stopWordFilters for applications or non English languages.\n *\n * @function\n * @param {Array} token The token to pass through the filter\n * @returns {lunr.PipelineFunction}\n * @see lunr.Pipeline\n * @see lunr.stopWordFilter\n */\nlunr.generateStopWordFilter = function (stopWords) {\n var words = stopWords.reduce(function (memo, stopWord) {\n memo[stopWord] = stopWord\n return memo\n }, {})\n\n return function (token) {\n if (token && words[token.toString()] !== token.toString()) return token\n }\n}\n\n/**\n * lunr.stopWordFilter is an English language stop word list filter, any words\n * contained in the list will not be passed through the filter.\n *\n * This is intended to be used in the Pipeline. If the token does not pass the\n * filter then undefined will be returned.\n *\n * @function\n * @implements {lunr.PipelineFunction}\n * @params {lunr.Token} token - A token to check for being a stop word.\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n */\nlunr.stopWordFilter = lunr.generateStopWordFilter([\n 'a',\n 'able',\n 'about',\n 'across',\n 'after',\n 'all',\n 'almost',\n 'also',\n 'am',\n 'among',\n 'an',\n 'and',\n 'any',\n 'are',\n 'as',\n 'at',\n 'be',\n 'because',\n 'been',\n 'but',\n 'by',\n 'can',\n 'cannot',\n 'could',\n 'dear',\n 'did',\n 'do',\n 'does',\n 'either',\n 'else',\n 'ever',\n 'every',\n 'for',\n 'from',\n 'get',\n 'got',\n 'had',\n 'has',\n 'have',\n 'he',\n 'her',\n 'hers',\n 'him',\n 'his',\n 'how',\n 'however',\n 'i',\n 'if',\n 'in',\n 'into',\n 'is',\n 'it',\n 'its',\n 'just',\n 'least',\n 'let',\n 'like',\n 'likely',\n 'may',\n 'me',\n 'might',\n 'most',\n 'must',\n 'my',\n 'neither',\n 'no',\n 'nor',\n 'not',\n 'of',\n 'off',\n 'often',\n 'on',\n 'only',\n 'or',\n 'other',\n 'our',\n 'own',\n 'rather',\n 'said',\n 'say',\n 'says',\n 'she',\n 'should',\n 'since',\n 'so',\n 'some',\n 'than',\n 'that',\n 'the',\n 'their',\n 'them',\n 'then',\n 'there',\n 'these',\n 'they',\n 'this',\n 'tis',\n 'to',\n 'too',\n 'twas',\n 'us',\n 'wants',\n 'was',\n 'we',\n 'were',\n 'what',\n 'when',\n 'where',\n 'which',\n 'while',\n 'who',\n 'whom',\n 'why',\n 'will',\n 'with',\n 'would',\n 'yet',\n 'you',\n 'your'\n])\n\nlunr.Pipeline.registerFunction(lunr.stopWordFilter, 'stopWordFilter')\n/*!\n * lunr.trimmer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.trimmer is a pipeline function for trimming non word\n * characters from the beginning and end of tokens before they\n * enter the index.\n *\n * This implementation may not work correctly for non latin\n * characters and should either be removed or adapted for use\n * with languages with non-latin characters.\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token The token to pass through the filter\n * @returns {lunr.Token}\n * @see lunr.Pipeline\n */\nlunr.trimmer = function (token) {\n return token.update(function (s) {\n return s.replace(/^\\W+/, '').replace(/\\W+$/, '')\n })\n}\n\nlunr.Pipeline.registerFunction(lunr.trimmer, 'trimmer')\n/*!\n * lunr.TokenSet\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A token set is used to store the unique list of all tokens\n * within an index. Token sets are also used to represent an\n * incoming query to the index, this query token set and index\n * token set are then intersected to find which tokens to look\n * up in the inverted index.\n *\n * A token set can hold multiple tokens, as in the case of the\n * index token set, or it can hold a single token as in the\n * case of a simple query token set.\n *\n * Additionally token sets are used to perform wildcard matching.\n * Leading, contained and trailing wildcards are supported, and\n * from this edit distance matching can also be provided.\n *\n * Token sets are implemented as a minimal finite state automata,\n * where both common prefixes and suffixes are shared between tokens.\n * This helps to reduce the space used for storing the token set.\n *\n * @constructor\n */\nlunr.TokenSet = function () {\n this.final = false\n this.edges = {}\n this.id = lunr.TokenSet._nextId\n lunr.TokenSet._nextId += 1\n}\n\n/**\n * Keeps track of the next, auto increment, identifier to assign\n * to a new tokenSet.\n *\n * TokenSets require a unique identifier to be correctly minimised.\n *\n * @private\n */\nlunr.TokenSet._nextId = 1\n\n/**\n * Creates a TokenSet instance from the given sorted array of words.\n *\n * @param {String[]} arr - A sorted array of strings to create the set from.\n * @returns {lunr.TokenSet}\n * @throws Will throw an error if the input array is not sorted.\n */\nlunr.TokenSet.fromArray = function (arr) {\n var builder = new lunr.TokenSet.Builder\n\n for (var i = 0, len = arr.length; i < len; i++) {\n builder.insert(arr[i])\n }\n\n builder.finish()\n return builder.root\n}\n\n/**\n * Creates a token set from a query clause.\n *\n * @private\n * @param {Object} clause - A single clause from lunr.Query.\n * @param {string} clause.term - The query clause term.\n * @param {number} [clause.editDistance] - The optional edit distance for the term.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromClause = function (clause) {\n if ('editDistance' in clause) {\n return lunr.TokenSet.fromFuzzyString(clause.term, clause.editDistance)\n } else {\n return lunr.TokenSet.fromString(clause.term)\n }\n}\n\n/**\n * Creates a token set representing a single string with a specified\n * edit distance.\n *\n * Insertions, deletions, substitutions and transpositions are each\n * treated as an edit distance of 1.\n *\n * Increasing the allowed edit distance will have a dramatic impact\n * on the performance of both creating and intersecting these TokenSets.\n * It is advised to keep the edit distance less than 3.\n *\n * @param {string} str - The string to create the token set from.\n * @param {number} editDistance - The allowed edit distance to match.\n * @returns {lunr.Vector}\n */\nlunr.TokenSet.fromFuzzyString = function (str, editDistance) {\n var root = new lunr.TokenSet\n\n var stack = [{\n node: root,\n editsRemaining: editDistance,\n str: str\n }]\n\n while (stack.length) {\n var frame = stack.pop()\n\n // no edit\n if (frame.str.length > 0) {\n var char = frame.str.charAt(0),\n noEditNode\n\n if (char in frame.node.edges) {\n noEditNode = frame.node.edges[char]\n } else {\n noEditNode = new lunr.TokenSet\n frame.node.edges[char] = noEditNode\n }\n\n if (frame.str.length == 1) {\n noEditNode.final = true\n }\n\n stack.push({\n node: noEditNode,\n editsRemaining: frame.editsRemaining,\n str: frame.str.slice(1)\n })\n }\n\n if (frame.editsRemaining == 0) {\n continue\n }\n\n // insertion\n if (\"*\" in frame.node.edges) {\n var insertionNode = frame.node.edges[\"*\"]\n } else {\n var insertionNode = new lunr.TokenSet\n frame.node.edges[\"*\"] = insertionNode\n }\n\n if (frame.str.length == 0) {\n insertionNode.final = true\n }\n\n stack.push({\n node: insertionNode,\n editsRemaining: frame.editsRemaining - 1,\n str: frame.str\n })\n\n // deletion\n // can only do a deletion if we have enough edits remaining\n // and if there are characters left to delete in the string\n if (frame.str.length > 1) {\n stack.push({\n node: frame.node,\n editsRemaining: frame.editsRemaining - 1,\n str: frame.str.slice(1)\n })\n }\n\n // deletion\n // just removing the last character from the str\n if (frame.str.length == 1) {\n frame.node.final = true\n }\n\n // substitution\n // can only do a substitution if we have enough edits remaining\n // and if there are characters left to substitute\n if (frame.str.length >= 1) {\n if (\"*\" in frame.node.edges) {\n var substitutionNode = frame.node.edges[\"*\"]\n } else {\n var substitutionNode = new lunr.TokenSet\n frame.node.edges[\"*\"] = substitutionNode\n }\n\n if (frame.str.length == 1) {\n substitutionNode.final = true\n }\n\n stack.push({\n node: substitutionNode,\n editsRemaining: frame.editsRemaining - 1,\n str: frame.str.slice(1)\n })\n }\n\n // transposition\n // can only do a transposition if there are edits remaining\n // and there are enough characters to transpose\n if (frame.str.length > 1) {\n var charA = frame.str.charAt(0),\n charB = frame.str.charAt(1),\n transposeNode\n\n if (charB in frame.node.edges) {\n transposeNode = frame.node.edges[charB]\n } else {\n transposeNode = new lunr.TokenSet\n frame.node.edges[charB] = transposeNode\n }\n\n if (frame.str.length == 1) {\n transposeNode.final = true\n }\n\n stack.push({\n node: transposeNode,\n editsRemaining: frame.editsRemaining - 1,\n str: charA + frame.str.slice(2)\n })\n }\n }\n\n return root\n}\n\n/**\n * Creates a TokenSet from a string.\n *\n * The string may contain one or more wildcard characters (*)\n * that will allow wildcard matching when intersecting with\n * another TokenSet.\n *\n * @param {string} str - The string to create a TokenSet from.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromString = function (str) {\n var node = new lunr.TokenSet,\n root = node\n\n /*\n * Iterates through all characters within the passed string\n * appending a node for each character.\n *\n * When a wildcard character is found then a self\n * referencing edge is introduced to continually match\n * any number of any characters.\n */\n for (var i = 0, len = str.length; i < len; i++) {\n var char = str[i],\n final = (i == len - 1)\n\n if (char == \"*\") {\n node.edges[char] = node\n node.final = final\n\n } else {\n var next = new lunr.TokenSet\n next.final = final\n\n node.edges[char] = next\n node = next\n }\n }\n\n return root\n}\n\n/**\n * Converts this TokenSet into an array of strings\n * contained within the TokenSet.\n *\n * This is not intended to be used on a TokenSet that\n * contains wildcards, in these cases the results are\n * undefined and are likely to cause an infinite loop.\n *\n * @returns {string[]}\n */\nlunr.TokenSet.prototype.toArray = function () {\n var words = []\n\n var stack = [{\n prefix: \"\",\n node: this\n }]\n\n while (stack.length) {\n var frame = stack.pop(),\n edges = Object.keys(frame.node.edges),\n len = edges.length\n\n if (frame.node.final) {\n /* In Safari, at this point the prefix is sometimes corrupted, see:\n * https://github.com/olivernn/lunr.js/issues/279 Calling any\n * String.prototype method forces Safari to \"cast\" this string to what\n * it's supposed to be, fixing the bug. */\n frame.prefix.charAt(0)\n words.push(frame.prefix)\n }\n\n for (var i = 0; i < len; i++) {\n var edge = edges[i]\n\n stack.push({\n prefix: frame.prefix.concat(edge),\n node: frame.node.edges[edge]\n })\n }\n }\n\n return words\n}\n\n/**\n * Generates a string representation of a TokenSet.\n *\n * This is intended to allow TokenSets to be used as keys\n * in objects, largely to aid the construction and minimisation\n * of a TokenSet. As such it is not designed to be a human\n * friendly representation of the TokenSet.\n *\n * @returns {string}\n */\nlunr.TokenSet.prototype.toString = function () {\n // NOTE: Using Object.keys here as this.edges is very likely\n // to enter 'hash-mode' with many keys being added\n //\n // avoiding a for-in loop here as it leads to the function\n // being de-optimised (at least in V8). From some simple\n // benchmarks the performance is comparable, but allowing\n // V8 to optimize may mean easy performance wins in the future.\n\n if (this._str) {\n return this._str\n }\n\n var str = this.final ? '1' : '0',\n labels = Object.keys(this.edges).sort(),\n len = labels.length\n\n for (var i = 0; i < len; i++) {\n var label = labels[i],\n node = this.edges[label]\n\n str = str + label + node.id\n }\n\n return str\n}\n\n/**\n * Returns a new TokenSet that is the intersection of\n * this TokenSet and the passed TokenSet.\n *\n * This intersection will take into account any wildcards\n * contained within the TokenSet.\n *\n * @param {lunr.TokenSet} b - An other TokenSet to intersect with.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.prototype.intersect = function (b) {\n var output = new lunr.TokenSet,\n frame = undefined\n\n var stack = [{\n qNode: b,\n output: output,\n node: this\n }]\n\n while (stack.length) {\n frame = stack.pop()\n\n // NOTE: As with the #toString method, we are using\n // Object.keys and a for loop instead of a for-in loop\n // as both of these objects enter 'hash' mode, causing\n // the function to be de-optimised in V8\n var qEdges = Object.keys(frame.qNode.edges),\n qLen = qEdges.length,\n nEdges = Object.keys(frame.node.edges),\n nLen = nEdges.length\n\n for (var q = 0; q < qLen; q++) {\n var qEdge = qEdges[q]\n\n for (var n = 0; n < nLen; n++) {\n var nEdge = nEdges[n]\n\n if (nEdge == qEdge || qEdge == '*') {\n var node = frame.node.edges[nEdge],\n qNode = frame.qNode.edges[qEdge],\n final = node.final && qNode.final,\n next = undefined\n\n if (nEdge in frame.output.edges) {\n // an edge already exists for this character\n // no need to create a new node, just set the finality\n // bit unless this node is already final\n next = frame.output.edges[nEdge]\n next.final = next.final || final\n\n } else {\n // no edge exists yet, must create one\n // set the finality bit and insert it\n // into the output\n next = new lunr.TokenSet\n next.final = final\n frame.output.edges[nEdge] = next\n }\n\n stack.push({\n qNode: qNode,\n output: next,\n node: node\n })\n }\n }\n }\n }\n\n return output\n}\nlunr.TokenSet.Builder = function () {\n this.previousWord = \"\"\n this.root = new lunr.TokenSet\n this.uncheckedNodes = []\n this.minimizedNodes = {}\n}\n\nlunr.TokenSet.Builder.prototype.insert = function (word) {\n var node,\n commonPrefix = 0\n\n if (word < this.previousWord) {\n throw new Error (\"Out of order word insertion\")\n }\n\n for (var i = 0; i < word.length && i < this.previousWord.length; i++) {\n if (word[i] != this.previousWord[i]) break\n commonPrefix++\n }\n\n this.minimize(commonPrefix)\n\n if (this.uncheckedNodes.length == 0) {\n node = this.root\n } else {\n node = this.uncheckedNodes[this.uncheckedNodes.length - 1].child\n }\n\n for (var i = commonPrefix; i < word.length; i++) {\n var nextNode = new lunr.TokenSet,\n char = word[i]\n\n node.edges[char] = nextNode\n\n this.uncheckedNodes.push({\n parent: node,\n char: char,\n child: nextNode\n })\n\n node = nextNode\n }\n\n node.final = true\n this.previousWord = word\n}\n\nlunr.TokenSet.Builder.prototype.finish = function () {\n this.minimize(0)\n}\n\nlunr.TokenSet.Builder.prototype.minimize = function (downTo) {\n for (var i = this.uncheckedNodes.length - 1; i >= downTo; i--) {\n var node = this.uncheckedNodes[i],\n childKey = node.child.toString()\n\n if (childKey in this.minimizedNodes) {\n node.parent.edges[node.char] = this.minimizedNodes[childKey]\n } else {\n // Cache the key for this node since\n // we know it can't change anymore\n node.child._str = childKey\n\n this.minimizedNodes[childKey] = node.child\n }\n\n this.uncheckedNodes.pop()\n }\n}\n/*!\n * lunr.Index\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * An index contains the built index of all documents and provides a query interface\n * to the index.\n *\n * Usually instances of lunr.Index will not be created using this constructor, instead\n * lunr.Builder should be used to construct new indexes, or lunr.Index.load should be\n * used to load previously built and serialized indexes.\n *\n * @constructor\n * @param {Object} attrs - The attributes of the built search index.\n * @param {Object} attrs.invertedIndex - An index of term/field to document reference.\n * @param {Object} attrs.fieldVectors - Field vectors\n * @param {lunr.TokenSet} attrs.tokenSet - An set of all corpus tokens.\n * @param {string[]} attrs.fields - The names of indexed document fields.\n * @param {lunr.Pipeline} attrs.pipeline - The pipeline to use for search terms.\n */\nlunr.Index = function (attrs) {\n this.invertedIndex = attrs.invertedIndex\n this.fieldVectors = attrs.fieldVectors\n this.tokenSet = attrs.tokenSet\n this.fields = attrs.fields\n this.pipeline = attrs.pipeline\n}\n\n/**\n * A result contains details of a document matching a search query.\n * @typedef {Object} lunr.Index~Result\n * @property {string} ref - The reference of the document this result represents.\n * @property {number} score - A number between 0 and 1 representing how similar this document is to the query.\n * @property {lunr.MatchData} matchData - Contains metadata about this match including which term(s) caused the match.\n */\n\n/**\n * Although lunr provides the ability to create queries using lunr.Query, it also provides a simple\n * query language which itself is parsed into an instance of lunr.Query.\n *\n * For programmatically building queries it is advised to directly use lunr.Query, the query language\n * is best used for human entered text rather than program generated text.\n *\n * At its simplest queries can just be a single term, e.g. `hello`, multiple terms are also supported\n * and will be combined with OR, e.g `hello world` will match documents that contain either 'hello'\n * or 'world', though those that contain both will rank higher in the results.\n *\n * Wildcards can be included in terms to match one or more unspecified characters, these wildcards can\n * be inserted anywhere within the term, and more than one wildcard can exist in a single term. Adding\n * wildcards will increase the number of documents that will be found but can also have a negative\n * impact on query performance, especially with wildcards at the beginning of a term.\n *\n * Terms can be restricted to specific fields, e.g. `title:hello`, only documents with the term\n * hello in the title field will match this query. Using a field not present in the index will lead\n * to an error being thrown.\n *\n * Modifiers can also be added to terms, lunr supports edit distance and boost modifiers on terms. A term\n * boost will make documents matching that term score higher, e.g. `foo^5`. Edit distance is also supported\n * to provide fuzzy matching, e.g. 'hello~2' will match documents with hello with an edit distance of 2.\n * Avoid large values for edit distance to improve query performance.\n *\n * Each term also supports a presence modifier. By default a term's presence in document is optional, however\n * this can be changed to either required or prohibited. For a term's presence to be required in a document the\n * term should be prefixed with a '+', e.g. `+foo bar` is a search for documents that must contain 'foo' and\n * optionally contain 'bar'. Conversely a leading '-' sets the terms presence to prohibited, i.e. it must not\n * appear in a document, e.g. `-foo bar` is a search for documents that do not contain 'foo' but may contain 'bar'.\n *\n * To escape special characters the backslash character '\\' can be used, this allows searches to include\n * characters that would normally be considered modifiers, e.g. `foo\\~2` will search for a term \"foo~2\" instead\n * of attempting to apply a boost of 2 to the search term \"foo\".\n *\n * @typedef {string} lunr.Index~QueryString\n * @example Simple single term query\n * hello\n * @example Multiple term query\n * hello world\n * @example term scoped to a field\n * title:hello\n * @example term with a boost of 10\n * hello^10\n * @example term with an edit distance of 2\n * hello~2\n * @example terms with presence modifiers\n * -foo +bar baz\n */\n\n/**\n * Performs a search against the index using lunr query syntax.\n *\n * Results will be returned sorted by their score, the most relevant results\n * will be returned first. For details on how the score is calculated, please see\n * the {@link https://lunrjs.com/guides/searching.html#scoring|guide}.\n *\n * For more programmatic querying use lunr.Index#query.\n *\n * @param {lunr.Index~QueryString} queryString - A string containing a lunr query.\n * @throws {lunr.QueryParseError} If the passed query string cannot be parsed.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.search = function (queryString) {\n return this.query(function (query) {\n var parser = new lunr.QueryParser(queryString, query)\n parser.parse()\n })\n}\n\n/**\n * A query builder callback provides a query object to be used to express\n * the query to perform on the index.\n *\n * @callback lunr.Index~queryBuilder\n * @param {lunr.Query} query - The query object to build up.\n * @this lunr.Query\n */\n\n/**\n * Performs a query against the index using the yielded lunr.Query object.\n *\n * If performing programmatic queries against the index, this method is preferred\n * over lunr.Index#search so as to avoid the additional query parsing overhead.\n *\n * A query object is yielded to the supplied function which should be used to\n * express the query to be run against the index.\n *\n * Note that although this function takes a callback parameter it is _not_ an\n * asynchronous operation, the callback is just yielded a query object to be\n * customized.\n *\n * @param {lunr.Index~queryBuilder} fn - A function that is used to build the query.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.query = function (fn) {\n // for each query clause\n // * process terms\n // * expand terms from token set\n // * find matching documents and metadata\n // * get document vectors\n // * score documents\n\n var query = new lunr.Query(this.fields),\n matchingFields = Object.create(null),\n queryVectors = Object.create(null),\n termFieldCache = Object.create(null),\n requiredMatches = Object.create(null),\n prohibitedMatches = Object.create(null)\n\n /*\n * To support field level boosts a query vector is created per\n * field. An empty vector is eagerly created to support negated\n * queries.\n */\n for (var i = 0; i < this.fields.length; i++) {\n queryVectors[this.fields[i]] = new lunr.Vector\n }\n\n fn.call(query, query)\n\n for (var i = 0; i < query.clauses.length; i++) {\n /*\n * Unless the pipeline has been disabled for this term, which is\n * the case for terms with wildcards, we need to pass the clause\n * term through the search pipeline. A pipeline returns an array\n * of processed terms. Pipeline functions may expand the passed\n * term, which means we may end up performing multiple index lookups\n * for a single query term.\n */\n var clause = query.clauses[i],\n terms = null,\n clauseMatches = lunr.Set.empty\n\n if (clause.usePipeline) {\n terms = this.pipeline.runString(clause.term, {\n fields: clause.fields\n })\n } else {\n terms = [clause.term]\n }\n\n for (var m = 0; m < terms.length; m++) {\n var term = terms[m]\n\n /*\n * Each term returned from the pipeline needs to use the same query\n * clause object, e.g. the same boost and or edit distance. The\n * simplest way to do this is to re-use the clause object but mutate\n * its term property.\n */\n clause.term = term\n\n /*\n * From the term in the clause we create a token set which will then\n * be used to intersect the indexes token set to get a list of terms\n * to lookup in the inverted index\n */\n var termTokenSet = lunr.TokenSet.fromClause(clause),\n expandedTerms = this.tokenSet.intersect(termTokenSet).toArray()\n\n /*\n * If a term marked as required does not exist in the tokenSet it is\n * impossible for the search to return any matches. We set all the field\n * scoped required matches set to empty and stop examining any further\n * clauses.\n */\n if (expandedTerms.length === 0 && clause.presence === lunr.Query.presence.REQUIRED) {\n for (var k = 0; k < clause.fields.length; k++) {\n var field = clause.fields[k]\n requiredMatches[field] = lunr.Set.empty\n }\n\n break\n }\n\n for (var j = 0; j < expandedTerms.length; j++) {\n /*\n * For each term get the posting and termIndex, this is required for\n * building the query vector.\n */\n var expandedTerm = expandedTerms[j],\n posting = this.invertedIndex[expandedTerm],\n termIndex = posting._index\n\n for (var k = 0; k < clause.fields.length; k++) {\n /*\n * For each field that this query term is scoped by (by default\n * all fields are in scope) we need to get all the document refs\n * that have this term in that field.\n *\n * The posting is the entry in the invertedIndex for the matching\n * term from above.\n */\n var field = clause.fields[k],\n fieldPosting = posting[field],\n matchingDocumentRefs = Object.keys(fieldPosting),\n termField = expandedTerm + \"/\" + field,\n matchingDocumentsSet = new lunr.Set(matchingDocumentRefs)\n\n /*\n * if the presence of this term is required ensure that the matching\n * documents are added to the set of required matches for this clause.\n *\n */\n if (clause.presence == lunr.Query.presence.REQUIRED) {\n clauseMatches = clauseMatches.union(matchingDocumentsSet)\n\n if (requiredMatches[field] === undefined) {\n requiredMatches[field] = lunr.Set.complete\n }\n }\n\n /*\n * if the presence of this term is prohibited ensure that the matching\n * documents are added to the set of prohibited matches for this field,\n * creating that set if it does not yet exist.\n */\n if (clause.presence == lunr.Query.presence.PROHIBITED) {\n if (prohibitedMatches[field] === undefined) {\n prohibitedMatches[field] = lunr.Set.empty\n }\n\n prohibitedMatches[field] = prohibitedMatches[field].union(matchingDocumentsSet)\n\n /*\n * Prohibited matches should not be part of the query vector used for\n * similarity scoring and no metadata should be extracted so we continue\n * to the next field\n */\n continue\n }\n\n /*\n * The query field vector is populated using the termIndex found for\n * the term and a unit value with the appropriate boost applied.\n * Using upsert because there could already be an entry in the vector\n * for the term we are working with. In that case we just add the scores\n * together.\n */\n queryVectors[field].upsert(termIndex, clause.boost, function (a, b) { return a + b })\n\n /**\n * If we've already seen this term, field combo then we've already collected\n * the matching documents and metadata, no need to go through all that again\n */\n if (termFieldCache[termField]) {\n continue\n }\n\n for (var l = 0; l < matchingDocumentRefs.length; l++) {\n /*\n * All metadata for this term/field/document triple\n * are then extracted and collected into an instance\n * of lunr.MatchData ready to be returned in the query\n * results\n */\n var matchingDocumentRef = matchingDocumentRefs[l],\n matchingFieldRef = new lunr.FieldRef (matchingDocumentRef, field),\n metadata = fieldPosting[matchingDocumentRef],\n fieldMatch\n\n if ((fieldMatch = matchingFields[matchingFieldRef]) === undefined) {\n matchingFields[matchingFieldRef] = new lunr.MatchData (expandedTerm, field, metadata)\n } else {\n fieldMatch.add(expandedTerm, field, metadata)\n }\n\n }\n\n termFieldCache[termField] = true\n }\n }\n }\n\n /**\n * If the presence was required we need to update the requiredMatches field sets.\n * We do this after all fields for the term have collected their matches because\n * the clause terms presence is required in _any_ of the fields not _all_ of the\n * fields.\n */\n if (clause.presence === lunr.Query.presence.REQUIRED) {\n for (var k = 0; k < clause.fields.length; k++) {\n var field = clause.fields[k]\n requiredMatches[field] = requiredMatches[field].intersect(clauseMatches)\n }\n }\n }\n\n /**\n * Need to combine the field scoped required and prohibited\n * matching documents into a global set of required and prohibited\n * matches\n */\n var allRequiredMatches = lunr.Set.complete,\n allProhibitedMatches = lunr.Set.empty\n\n for (var i = 0; i < this.fields.length; i++) {\n var field = this.fields[i]\n\n if (requiredMatches[field]) {\n allRequiredMatches = allRequiredMatches.intersect(requiredMatches[field])\n }\n\n if (prohibitedMatches[field]) {\n allProhibitedMatches = allProhibitedMatches.union(prohibitedMatches[field])\n }\n }\n\n var matchingFieldRefs = Object.keys(matchingFields),\n results = [],\n matches = Object.create(null)\n\n /*\n * If the query is negated (contains only prohibited terms)\n * we need to get _all_ fieldRefs currently existing in the\n * index. This is only done when we know that the query is\n * entirely prohibited terms to avoid any cost of getting all\n * fieldRefs unnecessarily.\n *\n * Additionally, blank MatchData must be created to correctly\n * populate the results.\n */\n if (query.isNegated()) {\n matchingFieldRefs = Object.keys(this.fieldVectors)\n\n for (var i = 0; i < matchingFieldRefs.length; i++) {\n var matchingFieldRef = matchingFieldRefs[i]\n var fieldRef = lunr.FieldRef.fromString(matchingFieldRef)\n matchingFields[matchingFieldRef] = new lunr.MatchData\n }\n }\n\n for (var i = 0; i < matchingFieldRefs.length; i++) {\n /*\n * Currently we have document fields that match the query, but we\n * need to return documents. The matchData and scores are combined\n * from multiple fields belonging to the same document.\n *\n * Scores are calculated by field, using the query vectors created\n * above, and combined into a final document score using addition.\n */\n var fieldRef = lunr.FieldRef.fromString(matchingFieldRefs[i]),\n docRef = fieldRef.docRef\n\n if (!allRequiredMatches.contains(docRef)) {\n continue\n }\n\n if (allProhibitedMatches.contains(docRef)) {\n continue\n }\n\n var fieldVector = this.fieldVectors[fieldRef],\n score = queryVectors[fieldRef.fieldName].similarity(fieldVector),\n docMatch\n\n if ((docMatch = matches[docRef]) !== undefined) {\n docMatch.score += score\n docMatch.matchData.combine(matchingFields[fieldRef])\n } else {\n var match = {\n ref: docRef,\n score: score,\n matchData: matchingFields[fieldRef]\n }\n matches[docRef] = match\n results.push(match)\n }\n }\n\n /*\n * Sort the results objects by score, highest first.\n */\n return results.sort(function (a, b) {\n return b.score - a.score\n })\n}\n\n/**\n * Prepares the index for JSON serialization.\n *\n * The schema for this JSON blob will be described in a\n * separate JSON schema file.\n *\n * @returns {Object}\n */\nlunr.Index.prototype.toJSON = function () {\n var invertedIndex = Object.keys(this.invertedIndex)\n .sort()\n .map(function (term) {\n return [term, this.invertedIndex[term]]\n }, this)\n\n var fieldVectors = Object.keys(this.fieldVectors)\n .map(function (ref) {\n return [ref, this.fieldVectors[ref].toJSON()]\n }, this)\n\n return {\n version: lunr.version,\n fields: this.fields,\n fieldVectors: fieldVectors,\n invertedIndex: invertedIndex,\n pipeline: this.pipeline.toJSON()\n }\n}\n\n/**\n * Loads a previously serialized lunr.Index\n *\n * @param {Object} serializedIndex - A previously serialized lunr.Index\n * @returns {lunr.Index}\n */\nlunr.Index.load = function (serializedIndex) {\n var attrs = {},\n fieldVectors = {},\n serializedVectors = serializedIndex.fieldVectors,\n invertedIndex = Object.create(null),\n serializedInvertedIndex = serializedIndex.invertedIndex,\n tokenSetBuilder = new lunr.TokenSet.Builder,\n pipeline = lunr.Pipeline.load(serializedIndex.pipeline)\n\n if (serializedIndex.version != lunr.version) {\n lunr.utils.warn(\"Version mismatch when loading serialised index. Current version of lunr '\" + lunr.version + \"' does not match serialized index '\" + serializedIndex.version + \"'\")\n }\n\n for (var i = 0; i < serializedVectors.length; i++) {\n var tuple = serializedVectors[i],\n ref = tuple[0],\n elements = tuple[1]\n\n fieldVectors[ref] = new lunr.Vector(elements)\n }\n\n for (var i = 0; i < serializedInvertedIndex.length; i++) {\n var tuple = serializedInvertedIndex[i],\n term = tuple[0],\n posting = tuple[1]\n\n tokenSetBuilder.insert(term)\n invertedIndex[term] = posting\n }\n\n tokenSetBuilder.finish()\n\n attrs.fields = serializedIndex.fields\n\n attrs.fieldVectors = fieldVectors\n attrs.invertedIndex = invertedIndex\n attrs.tokenSet = tokenSetBuilder.root\n attrs.pipeline = pipeline\n\n return new lunr.Index(attrs)\n}\n/*!\n * lunr.Builder\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Builder performs indexing on a set of documents and\n * returns instances of lunr.Index ready for querying.\n *\n * All configuration of the index is done via the builder, the\n * fields to index, the document reference, the text processing\n * pipeline and document scoring parameters are all set on the\n * builder before indexing.\n *\n * @constructor\n * @property {string} _ref - Internal reference to the document reference field.\n * @property {string[]} _fields - Internal reference to the document fields to index.\n * @property {object} invertedIndex - The inverted index maps terms to document fields.\n * @property {object} documentTermFrequencies - Keeps track of document term frequencies.\n * @property {object} documentLengths - Keeps track of the length of documents added to the index.\n * @property {lunr.tokenizer} tokenizer - Function for splitting strings into tokens for indexing.\n * @property {lunr.Pipeline} pipeline - The pipeline performs text processing on tokens before indexing.\n * @property {lunr.Pipeline} searchPipeline - A pipeline for processing search terms before querying the index.\n * @property {number} documentCount - Keeps track of the total number of documents indexed.\n * @property {number} _b - A parameter to control field length normalization, setting this to 0 disabled normalization, 1 fully normalizes field lengths, the default value is 0.75.\n * @property {number} _k1 - A parameter to control how quickly an increase in term frequency results in term frequency saturation, the default value is 1.2.\n * @property {number} termIndex - A counter incremented for each unique term, used to identify a terms position in the vector space.\n * @property {array} metadataWhitelist - A list of metadata keys that have been whitelisted for entry in the index.\n */\nlunr.Builder = function () {\n this._ref = \"id\"\n this._fields = Object.create(null)\n this._documents = Object.create(null)\n this.invertedIndex = Object.create(null)\n this.fieldTermFrequencies = {}\n this.fieldLengths = {}\n this.tokenizer = lunr.tokenizer\n this.pipeline = new lunr.Pipeline\n this.searchPipeline = new lunr.Pipeline\n this.documentCount = 0\n this._b = 0.75\n this._k1 = 1.2\n this.termIndex = 0\n this.metadataWhitelist = []\n}\n\n/**\n * Sets the document field used as the document reference. Every document must have this field.\n * The type of this field in the document should be a string, if it is not a string it will be\n * coerced into a string by calling toString.\n *\n * The default ref is 'id'.\n *\n * The ref should _not_ be changed during indexing, it should be set before any documents are\n * added to the index. Changing it during indexing can lead to inconsistent results.\n *\n * @param {string} ref - The name of the reference field in the document.\n */\nlunr.Builder.prototype.ref = function (ref) {\n this._ref = ref\n}\n\n/**\n * A function that is used to extract a field from a document.\n *\n * Lunr expects a field to be at the top level of a document, if however the field\n * is deeply nested within a document an extractor function can be used to extract\n * the right field for indexing.\n *\n * @callback fieldExtractor\n * @param {object} doc - The document being added to the index.\n * @returns {?(string|object|object[])} obj - The object that will be indexed for this field.\n * @example Extracting a nested field\n * function (doc) { return doc.nested.field }\n */\n\n/**\n * Adds a field to the list of document fields that will be indexed. Every document being\n * indexed should have this field. Null values for this field in indexed documents will\n * not cause errors but will limit the chance of that document being retrieved by searches.\n *\n * All fields should be added before adding documents to the index. Adding fields after\n * a document has been indexed will have no effect on already indexed documents.\n *\n * Fields can be boosted at build time. This allows terms within that field to have more\n * importance when ranking search results. Use a field boost to specify that matches within\n * one field are more important than other fields.\n *\n * @param {string} fieldName - The name of a field to index in all documents.\n * @param {object} attributes - Optional attributes associated with this field.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this field.\n * @param {fieldExtractor} [attributes.extractor] - Function to extract a field from a document.\n * @throws {RangeError} fieldName cannot contain unsupported characters '/'\n */\nlunr.Builder.prototype.field = function (fieldName, attributes) {\n if (/\\//.test(fieldName)) {\n throw new RangeError (\"Field '\" + fieldName + \"' contains illegal character '/'\")\n }\n\n this._fields[fieldName] = attributes || {}\n}\n\n/**\n * A parameter to tune the amount of field length normalisation that is applied when\n * calculating relevance scores. A value of 0 will completely disable any normalisation\n * and a value of 1 will fully normalise field lengths. The default is 0.75. Values of b\n * will be clamped to the range 0 - 1.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.b = function (number) {\n if (number < 0) {\n this._b = 0\n } else if (number > 1) {\n this._b = 1\n } else {\n this._b = number\n }\n}\n\n/**\n * A parameter that controls the speed at which a rise in term frequency results in term\n * frequency saturation. The default value is 1.2. Setting this to a higher value will give\n * slower saturation levels, a lower value will result in quicker saturation.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.k1 = function (number) {\n this._k1 = number\n}\n\n/**\n * Adds a document to the index.\n *\n * Before adding fields to the index the index should have been fully setup, with the document\n * ref and all fields to index already having been specified.\n *\n * The document must have a field name as specified by the ref (by default this is 'id') and\n * it should have all fields defined for indexing, though null or undefined values will not\n * cause errors.\n *\n * Entire documents can be boosted at build time. Applying a boost to a document indicates that\n * this document should rank higher in search results than other documents.\n *\n * @param {object} doc - The document to add to the index.\n * @param {object} attributes - Optional attributes associated with this document.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this document.\n */\nlunr.Builder.prototype.add = function (doc, attributes) {\n var docRef = doc[this._ref],\n fields = Object.keys(this._fields)\n\n this._documents[docRef] = attributes || {}\n this.documentCount += 1\n\n for (var i = 0; i < fields.length; i++) {\n var fieldName = fields[i],\n extractor = this._fields[fieldName].extractor,\n field = extractor ? extractor(doc) : doc[fieldName],\n tokens = this.tokenizer(field, {\n fields: [fieldName]\n }),\n terms = this.pipeline.run(tokens),\n fieldRef = new lunr.FieldRef (docRef, fieldName),\n fieldTerms = Object.create(null)\n\n this.fieldTermFrequencies[fieldRef] = fieldTerms\n this.fieldLengths[fieldRef] = 0\n\n // store the length of this field for this document\n this.fieldLengths[fieldRef] += terms.length\n\n // calculate term frequencies for this field\n for (var j = 0; j < terms.length; j++) {\n var term = terms[j]\n\n if (fieldTerms[term] == undefined) {\n fieldTerms[term] = 0\n }\n\n fieldTerms[term] += 1\n\n // add to inverted index\n // create an initial posting if one doesn't exist\n if (this.invertedIndex[term] == undefined) {\n var posting = Object.create(null)\n posting[\"_index\"] = this.termIndex\n this.termIndex += 1\n\n for (var k = 0; k < fields.length; k++) {\n posting[fields[k]] = Object.create(null)\n }\n\n this.invertedIndex[term] = posting\n }\n\n // add an entry for this term/fieldName/docRef to the invertedIndex\n if (this.invertedIndex[term][fieldName][docRef] == undefined) {\n this.invertedIndex[term][fieldName][docRef] = Object.create(null)\n }\n\n // store all whitelisted metadata about this token in the\n // inverted index\n for (var l = 0; l < this.metadataWhitelist.length; l++) {\n var metadataKey = this.metadataWhitelist[l],\n metadata = term.metadata[metadataKey]\n\n if (this.invertedIndex[term][fieldName][docRef][metadataKey] == undefined) {\n this.invertedIndex[term][fieldName][docRef][metadataKey] = []\n }\n\n this.invertedIndex[term][fieldName][docRef][metadataKey].push(metadata)\n }\n }\n\n }\n}\n\n/**\n * Calculates the average document length for this index\n *\n * @private\n */\nlunr.Builder.prototype.calculateAverageFieldLengths = function () {\n\n var fieldRefs = Object.keys(this.fieldLengths),\n numberOfFields = fieldRefs.length,\n accumulator = {},\n documentsWithField = {}\n\n for (var i = 0; i < numberOfFields; i++) {\n var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n field = fieldRef.fieldName\n\n documentsWithField[field] || (documentsWithField[field] = 0)\n documentsWithField[field] += 1\n\n accumulator[field] || (accumulator[field] = 0)\n accumulator[field] += this.fieldLengths[fieldRef]\n }\n\n var fields = Object.keys(this._fields)\n\n for (var i = 0; i < fields.length; i++) {\n var fieldName = fields[i]\n accumulator[fieldName] = accumulator[fieldName] / documentsWithField[fieldName]\n }\n\n this.averageFieldLength = accumulator\n}\n\n/**\n * Builds a vector space model of every document using lunr.Vector\n *\n * @private\n */\nlunr.Builder.prototype.createFieldVectors = function () {\n var fieldVectors = {},\n fieldRefs = Object.keys(this.fieldTermFrequencies),\n fieldRefsLength = fieldRefs.length,\n termIdfCache = Object.create(null)\n\n for (var i = 0; i < fieldRefsLength; i++) {\n var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n fieldName = fieldRef.fieldName,\n fieldLength = this.fieldLengths[fieldRef],\n fieldVector = new lunr.Vector,\n termFrequencies = this.fieldTermFrequencies[fieldRef],\n terms = Object.keys(termFrequencies),\n termsLength = terms.length\n\n\n var fieldBoost = this._fields[fieldName].boost || 1,\n docBoost = this._documents[fieldRef.docRef].boost || 1\n\n for (var j = 0; j < termsLength; j++) {\n var term = terms[j],\n tf = termFrequencies[term],\n termIndex = this.invertedIndex[term]._index,\n idf, score, scoreWithPrecision\n\n if (termIdfCache[term] === undefined) {\n idf = lunr.idf(this.invertedIndex[term], this.documentCount)\n termIdfCache[term] = idf\n } else {\n idf = termIdfCache[term]\n }\n\n score = idf * ((this._k1 + 1) * tf) / (this._k1 * (1 - this._b + this._b * (fieldLength / this.averageFieldLength[fieldName])) + tf)\n score *= fieldBoost\n score *= docBoost\n scoreWithPrecision = Math.round(score * 1000) / 1000\n // Converts 1.23456789 to 1.234.\n // Reducing the precision so that the vectors take up less\n // space when serialised. Doing it now so that they behave\n // the same before and after serialisation. Also, this is\n // the fastest approach to reducing a number's precision in\n // JavaScript.\n\n fieldVector.insert(termIndex, scoreWithPrecision)\n }\n\n fieldVectors[fieldRef] = fieldVector\n }\n\n this.fieldVectors = fieldVectors\n}\n\n/**\n * Creates a token set of all tokens in the index using lunr.TokenSet\n *\n * @private\n */\nlunr.Builder.prototype.createTokenSet = function () {\n this.tokenSet = lunr.TokenSet.fromArray(\n Object.keys(this.invertedIndex).sort()\n )\n}\n\n/**\n * Builds the index, creating an instance of lunr.Index.\n *\n * This completes the indexing process and should only be called\n * once all documents have been added to the index.\n *\n * @returns {lunr.Index}\n */\nlunr.Builder.prototype.build = function () {\n this.calculateAverageFieldLengths()\n this.createFieldVectors()\n this.createTokenSet()\n\n return new lunr.Index({\n invertedIndex: this.invertedIndex,\n fieldVectors: this.fieldVectors,\n tokenSet: this.tokenSet,\n fields: Object.keys(this._fields),\n pipeline: this.searchPipeline\n })\n}\n\n/**\n * Applies a plugin to the index builder.\n *\n * A plugin is a function that is called with the index builder as its context.\n * Plugins can be used to customise or extend the behaviour of the index\n * in some way. A plugin is just a function, that encapsulated the custom\n * behaviour that should be applied when building the index.\n *\n * The plugin function will be called with the index builder as its argument, additional\n * arguments can also be passed when calling use. The function will be called\n * with the index builder as its context.\n *\n * @param {Function} plugin The plugin to apply.\n */\nlunr.Builder.prototype.use = function (fn) {\n var args = Array.prototype.slice.call(arguments, 1)\n args.unshift(this)\n fn.apply(this, args)\n}\n/**\n * Contains and collects metadata about a matching document.\n * A single instance of lunr.MatchData is returned as part of every\n * lunr.Index~Result.\n *\n * @constructor\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n * @property {object} metadata - A cloned collection of metadata associated with this document.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData = function (term, field, metadata) {\n var clonedMetadata = Object.create(null),\n metadataKeys = Object.keys(metadata || {})\n\n // Cloning the metadata to prevent the original\n // being mutated during match data combination.\n // Metadata is kept in an array within the inverted\n // index so cloning the data can be done with\n // Array#slice\n for (var i = 0; i < metadataKeys.length; i++) {\n var key = metadataKeys[i]\n clonedMetadata[key] = metadata[key].slice()\n }\n\n this.metadata = Object.create(null)\n\n if (term !== undefined) {\n this.metadata[term] = Object.create(null)\n this.metadata[term][field] = clonedMetadata\n }\n}\n\n/**\n * An instance of lunr.MatchData will be created for every term that matches a\n * document. However only one instance is required in a lunr.Index~Result. This\n * method combines metadata from another instance of lunr.MatchData with this\n * objects metadata.\n *\n * @param {lunr.MatchData} otherMatchData - Another instance of match data to merge with this one.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData.prototype.combine = function (otherMatchData) {\n var terms = Object.keys(otherMatchData.metadata)\n\n for (var i = 0; i < terms.length; i++) {\n var term = terms[i],\n fields = Object.keys(otherMatchData.metadata[term])\n\n if (this.metadata[term] == undefined) {\n this.metadata[term] = Object.create(null)\n }\n\n for (var j = 0; j < fields.length; j++) {\n var field = fields[j],\n keys = Object.keys(otherMatchData.metadata[term][field])\n\n if (this.metadata[term][field] == undefined) {\n this.metadata[term][field] = Object.create(null)\n }\n\n for (var k = 0; k < keys.length; k++) {\n var key = keys[k]\n\n if (this.metadata[term][field][key] == undefined) {\n this.metadata[term][field][key] = otherMatchData.metadata[term][field][key]\n } else {\n this.metadata[term][field][key] = this.metadata[term][field][key].concat(otherMatchData.metadata[term][field][key])\n }\n\n }\n }\n }\n}\n\n/**\n * Add metadata for a term/field pair to this instance of match data.\n *\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n */\nlunr.MatchData.prototype.add = function (term, field, metadata) {\n if (!(term in this.metadata)) {\n this.metadata[term] = Object.create(null)\n this.metadata[term][field] = metadata\n return\n }\n\n if (!(field in this.metadata[term])) {\n this.metadata[term][field] = metadata\n return\n }\n\n var metadataKeys = Object.keys(metadata)\n\n for (var i = 0; i < metadataKeys.length; i++) {\n var key = metadataKeys[i]\n\n if (key in this.metadata[term][field]) {\n this.metadata[term][field][key] = this.metadata[term][field][key].concat(metadata[key])\n } else {\n this.metadata[term][field][key] = metadata[key]\n }\n }\n}\n/**\n * A lunr.Query provides a programmatic way of defining queries to be performed\n * against a {@link lunr.Index}.\n *\n * Prefer constructing a lunr.Query using the {@link lunr.Index#query} method\n * so the query object is pre-initialized with the right index fields.\n *\n * @constructor\n * @property {lunr.Query~Clause[]} clauses - An array of query clauses.\n * @property {string[]} allFields - An array of all available fields in a lunr.Index.\n */\nlunr.Query = function (allFields) {\n this.clauses = []\n this.allFields = allFields\n}\n\n/**\n * Constants for indicating what kind of automatic wildcard insertion will be used when constructing a query clause.\n *\n * This allows wildcards to be added to the beginning and end of a term without having to manually do any string\n * concatenation.\n *\n * The wildcard constants can be bitwise combined to select both leading and trailing wildcards.\n *\n * @constant\n * @default\n * @property {number} wildcard.NONE - The term will have no wildcards inserted, this is the default behaviour\n * @property {number} wildcard.LEADING - Prepend the term with a wildcard, unless a leading wildcard already exists\n * @property {number} wildcard.TRAILING - Append a wildcard to the term, unless a trailing wildcard already exists\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example query term with trailing wildcard\n * query.term('foo', { wildcard: lunr.Query.wildcard.TRAILING })\n * @example query term with leading and trailing wildcard\n * query.term('foo', {\n * wildcard: lunr.Query.wildcard.LEADING | lunr.Query.wildcard.TRAILING\n * })\n */\n\nlunr.Query.wildcard = new String (\"*\")\nlunr.Query.wildcard.NONE = 0\nlunr.Query.wildcard.LEADING = 1\nlunr.Query.wildcard.TRAILING = 2\n\n/**\n * Constants for indicating what kind of presence a term must have in matching documents.\n *\n * @constant\n * @enum {number}\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example query term with required presence\n * query.term('foo', { presence: lunr.Query.presence.REQUIRED })\n */\nlunr.Query.presence = {\n /**\n * Term's presence in a document is optional, this is the default value.\n */\n OPTIONAL: 1,\n\n /**\n * Term's presence in a document is required, documents that do not contain\n * this term will not be returned.\n */\n REQUIRED: 2,\n\n /**\n * Term's presence in a document is prohibited, documents that do contain\n * this term will not be returned.\n */\n PROHIBITED: 3\n}\n\n/**\n * A single clause in a {@link lunr.Query} contains a term and details on how to\n * match that term against a {@link lunr.Index}.\n *\n * @typedef {Object} lunr.Query~Clause\n * @property {string[]} fields - The fields in an index this clause should be matched against.\n * @property {number} [boost=1] - Any boost that should be applied when matching this clause.\n * @property {number} [editDistance] - Whether the term should have fuzzy matching applied, and how fuzzy the match should be.\n * @property {boolean} [usePipeline] - Whether the term should be passed through the search pipeline.\n * @property {number} [wildcard=lunr.Query.wildcard.NONE] - Whether the term should have wildcards appended or prepended.\n * @property {number} [presence=lunr.Query.presence.OPTIONAL] - The terms presence in any matching documents.\n */\n\n/**\n * Adds a {@link lunr.Query~Clause} to this query.\n *\n * Unless the clause contains the fields to be matched all fields will be matched. In addition\n * a default boost of 1 is applied to the clause.\n *\n * @param {lunr.Query~Clause} clause - The clause to add to this query.\n * @see lunr.Query~Clause\n * @returns {lunr.Query}\n */\nlunr.Query.prototype.clause = function (clause) {\n if (!('fields' in clause)) {\n clause.fields = this.allFields\n }\n\n if (!('boost' in clause)) {\n clause.boost = 1\n }\n\n if (!('usePipeline' in clause)) {\n clause.usePipeline = true\n }\n\n if (!('wildcard' in clause)) {\n clause.wildcard = lunr.Query.wildcard.NONE\n }\n\n if ((clause.wildcard & lunr.Query.wildcard.LEADING) && (clause.term.charAt(0) != lunr.Query.wildcard)) {\n clause.term = \"*\" + clause.term\n }\n\n if ((clause.wildcard & lunr.Query.wildcard.TRAILING) && (clause.term.slice(-1) != lunr.Query.wildcard)) {\n clause.term = \"\" + clause.term + \"*\"\n }\n\n if (!('presence' in clause)) {\n clause.presence = lunr.Query.presence.OPTIONAL\n }\n\n this.clauses.push(clause)\n\n return this\n}\n\n/**\n * A negated query is one in which every clause has a presence of\n * prohibited. These queries require some special processing to return\n * the expected results.\n *\n * @returns boolean\n */\nlunr.Query.prototype.isNegated = function () {\n for (var i = 0; i < this.clauses.length; i++) {\n if (this.clauses[i].presence != lunr.Query.presence.PROHIBITED) {\n return false\n }\n }\n\n return true\n}\n\n/**\n * Adds a term to the current query, under the covers this will create a {@link lunr.Query~Clause}\n * to the list of clauses that make up this query.\n *\n * The term is used as is, i.e. no tokenization will be performed by this method. Instead conversion\n * to a token or token-like string should be done before calling this method.\n *\n * The term will be converted to a string by calling `toString`. Multiple terms can be passed as an\n * array, each term in the array will share the same options.\n *\n * @param {object|object[]} term - The term(s) to add to the query.\n * @param {object} [options] - Any additional properties to add to the query clause.\n * @returns {lunr.Query}\n * @see lunr.Query#clause\n * @see lunr.Query~Clause\n * @example adding a single term to a query\n * query.term(\"foo\")\n * @example adding a single term to a query and specifying search fields, term boost and automatic trailing wildcard\n * query.term(\"foo\", {\n * fields: [\"title\"],\n * boost: 10,\n * wildcard: lunr.Query.wildcard.TRAILING\n * })\n * @example using lunr.tokenizer to convert a string to tokens before using them as terms\n * query.term(lunr.tokenizer(\"foo bar\"))\n */\nlunr.Query.prototype.term = function (term, options) {\n if (Array.isArray(term)) {\n term.forEach(function (t) { this.term(t, lunr.utils.clone(options)) }, this)\n return this\n }\n\n var clause = options || {}\n clause.term = term.toString()\n\n this.clause(clause)\n\n return this\n}\nlunr.QueryParseError = function (message, start, end) {\n this.name = \"QueryParseError\"\n this.message = message\n this.start = start\n this.end = end\n}\n\nlunr.QueryParseError.prototype = new Error\nlunr.QueryLexer = function (str) {\n this.lexemes = []\n this.str = str\n this.length = str.length\n this.pos = 0\n this.start = 0\n this.escapeCharPositions = []\n}\n\nlunr.QueryLexer.prototype.run = function () {\n var state = lunr.QueryLexer.lexText\n\n while (state) {\n state = state(this)\n }\n}\n\nlunr.QueryLexer.prototype.sliceString = function () {\n var subSlices = [],\n sliceStart = this.start,\n sliceEnd = this.pos\n\n for (var i = 0; i < this.escapeCharPositions.length; i++) {\n sliceEnd = this.escapeCharPositions[i]\n subSlices.push(this.str.slice(sliceStart, sliceEnd))\n sliceStart = sliceEnd + 1\n }\n\n subSlices.push(this.str.slice(sliceStart, this.pos))\n this.escapeCharPositions.length = 0\n\n return subSlices.join('')\n}\n\nlunr.QueryLexer.prototype.emit = function (type) {\n this.lexemes.push({\n type: type,\n str: this.sliceString(),\n start: this.start,\n end: this.pos\n })\n\n this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.escapeCharacter = function () {\n this.escapeCharPositions.push(this.pos - 1)\n this.pos += 1\n}\n\nlunr.QueryLexer.prototype.next = function () {\n if (this.pos >= this.length) {\n return lunr.QueryLexer.EOS\n }\n\n var char = this.str.charAt(this.pos)\n this.pos += 1\n return char\n}\n\nlunr.QueryLexer.prototype.width = function () {\n return this.pos - this.start\n}\n\nlunr.QueryLexer.prototype.ignore = function () {\n if (this.start == this.pos) {\n this.pos += 1\n }\n\n this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.backup = function () {\n this.pos -= 1\n}\n\nlunr.QueryLexer.prototype.acceptDigitRun = function () {\n var char, charCode\n\n do {\n char = this.next()\n charCode = char.charCodeAt(0)\n } while (charCode > 47 && charCode < 58)\n\n if (char != lunr.QueryLexer.EOS) {\n this.backup()\n }\n}\n\nlunr.QueryLexer.prototype.more = function () {\n return this.pos < this.length\n}\n\nlunr.QueryLexer.EOS = 'EOS'\nlunr.QueryLexer.FIELD = 'FIELD'\nlunr.QueryLexer.TERM = 'TERM'\nlunr.QueryLexer.EDIT_DISTANCE = 'EDIT_DISTANCE'\nlunr.QueryLexer.BOOST = 'BOOST'\nlunr.QueryLexer.PRESENCE = 'PRESENCE'\n\nlunr.QueryLexer.lexField = function (lexer) {\n lexer.backup()\n lexer.emit(lunr.QueryLexer.FIELD)\n lexer.ignore()\n return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexTerm = function (lexer) {\n if (lexer.width() > 1) {\n lexer.backup()\n lexer.emit(lunr.QueryLexer.TERM)\n }\n\n lexer.ignore()\n\n if (lexer.more()) {\n return lunr.QueryLexer.lexText\n }\n}\n\nlunr.QueryLexer.lexEditDistance = function (lexer) {\n lexer.ignore()\n lexer.acceptDigitRun()\n lexer.emit(lunr.QueryLexer.EDIT_DISTANCE)\n return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexBoost = function (lexer) {\n lexer.ignore()\n lexer.acceptDigitRun()\n lexer.emit(lunr.QueryLexer.BOOST)\n return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexEOS = function (lexer) {\n if (lexer.width() > 0) {\n lexer.emit(lunr.QueryLexer.TERM)\n }\n}\n\n// This matches the separator used when tokenising fields\n// within a document. These should match otherwise it is\n// not possible to search for some tokens within a document.\n//\n// It is possible for the user to change the separator on the\n// tokenizer so it _might_ clash with any other of the special\n// characters already used within the search string, e.g. :.\n//\n// This means that it is possible to change the separator in\n// such a way that makes some words unsearchable using a search\n// string.\nlunr.QueryLexer.termSeparator = lunr.tokenizer.separator\n\nlunr.QueryLexer.lexText = function (lexer) {\n while (true) {\n var char = lexer.next()\n\n if (char == lunr.QueryLexer.EOS) {\n return lunr.QueryLexer.lexEOS\n }\n\n // Escape character is '\\'\n if (char.charCodeAt(0) == 92) {\n lexer.escapeCharacter()\n continue\n }\n\n if (char == \":\") {\n return lunr.QueryLexer.lexField\n }\n\n if (char == \"~\") {\n lexer.backup()\n if (lexer.width() > 0) {\n lexer.emit(lunr.QueryLexer.TERM)\n }\n return lunr.QueryLexer.lexEditDistance\n }\n\n if (char == \"^\") {\n lexer.backup()\n if (lexer.width() > 0) {\n lexer.emit(lunr.QueryLexer.TERM)\n }\n return lunr.QueryLexer.lexBoost\n }\n\n // \"+\" indicates term presence is required\n // checking for length to ensure that only\n // leading \"+\" are considered\n if (char == \"+\" && lexer.width() === 1) {\n lexer.emit(lunr.QueryLexer.PRESENCE)\n return lunr.QueryLexer.lexText\n }\n\n // \"-\" indicates term presence is prohibited\n // checking for length to ensure that only\n // leading \"-\" are considered\n if (char == \"-\" && lexer.width() === 1) {\n lexer.emit(lunr.QueryLexer.PRESENCE)\n return lunr.QueryLexer.lexText\n }\n\n if (char.match(lunr.QueryLexer.termSeparator)) {\n return lunr.QueryLexer.lexTerm\n }\n }\n}\n\nlunr.QueryParser = function (str, query) {\n this.lexer = new lunr.QueryLexer (str)\n this.query = query\n this.currentClause = {}\n this.lexemeIdx = 0\n}\n\nlunr.QueryParser.prototype.parse = function () {\n this.lexer.run()\n this.lexemes = this.lexer.lexemes\n\n var state = lunr.QueryParser.parseClause\n\n while (state) {\n state = state(this)\n }\n\n return this.query\n}\n\nlunr.QueryParser.prototype.peekLexeme = function () {\n return this.lexemes[this.lexemeIdx]\n}\n\nlunr.QueryParser.prototype.consumeLexeme = function () {\n var lexeme = this.peekLexeme()\n this.lexemeIdx += 1\n return lexeme\n}\n\nlunr.QueryParser.prototype.nextClause = function () {\n var completedClause = this.currentClause\n this.query.clause(completedClause)\n this.currentClause = {}\n}\n\nlunr.QueryParser.parseClause = function (parser) {\n var lexeme = parser.peekLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n switch (lexeme.type) {\n case lunr.QueryLexer.PRESENCE:\n return lunr.QueryParser.parsePresence\n case lunr.QueryLexer.FIELD:\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.TERM:\n return lunr.QueryParser.parseTerm\n default:\n var errorMessage = \"expected either a field or a term, found \" + lexeme.type\n\n if (lexeme.str.length >= 1) {\n errorMessage += \" with value '\" + lexeme.str + \"'\"\n }\n\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n}\n\nlunr.QueryParser.parsePresence = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n switch (lexeme.str) {\n case \"-\":\n parser.currentClause.presence = lunr.Query.presence.PROHIBITED\n break\n case \"+\":\n parser.currentClause.presence = lunr.Query.presence.REQUIRED\n break\n default:\n var errorMessage = \"unrecognised presence operator'\" + lexeme.str + \"'\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n var errorMessage = \"expecting term or field, found nothing\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.FIELD:\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.TERM:\n return lunr.QueryParser.parseTerm\n default:\n var errorMessage = \"expecting term or field, found '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseField = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n if (parser.query.allFields.indexOf(lexeme.str) == -1) {\n var possibleFields = parser.query.allFields.map(function (f) { return \"'\" + f + \"'\" }).join(', '),\n errorMessage = \"unrecognised field '\" + lexeme.str + \"', possible fields: \" + possibleFields\n\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n parser.currentClause.fields = [lexeme.str]\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n var errorMessage = \"expecting term, found nothing\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n return lunr.QueryParser.parseTerm\n default:\n var errorMessage = \"expecting term, found '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseTerm = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n parser.currentClause.term = lexeme.str.toLowerCase()\n\n if (lexeme.str.indexOf(\"*\") != -1) {\n parser.currentClause.usePipeline = false\n }\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n parser.nextClause()\n return\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n parser.nextClause()\n return lunr.QueryParser.parseTerm\n case lunr.QueryLexer.FIELD:\n parser.nextClause()\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.EDIT_DISTANCE:\n return lunr.QueryParser.parseEditDistance\n case lunr.QueryLexer.BOOST:\n return lunr.QueryParser.parseBoost\n case lunr.QueryLexer.PRESENCE:\n parser.nextClause()\n return lunr.QueryParser.parsePresence\n default:\n var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseEditDistance = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n var editDistance = parseInt(lexeme.str, 10)\n\n if (isNaN(editDistance)) {\n var errorMessage = \"edit distance must be numeric\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n parser.currentClause.editDistance = editDistance\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n parser.nextClause()\n return\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n parser.nextClause()\n return lunr.QueryParser.parseTerm\n case lunr.QueryLexer.FIELD:\n parser.nextClause()\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.EDIT_DISTANCE:\n return lunr.QueryParser.parseEditDistance\n case lunr.QueryLexer.BOOST:\n return lunr.QueryParser.parseBoost\n case lunr.QueryLexer.PRESENCE:\n parser.nextClause()\n return lunr.QueryParser.parsePresence\n default:\n var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\nlunr.QueryParser.parseBoost = function (parser) {\n var lexeme = parser.consumeLexeme()\n\n if (lexeme == undefined) {\n return\n }\n\n var boost = parseInt(lexeme.str, 10)\n\n if (isNaN(boost)) {\n var errorMessage = \"boost must be numeric\"\n throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n }\n\n parser.currentClause.boost = boost\n\n var nextLexeme = parser.peekLexeme()\n\n if (nextLexeme == undefined) {\n parser.nextClause()\n return\n }\n\n switch (nextLexeme.type) {\n case lunr.QueryLexer.TERM:\n parser.nextClause()\n return lunr.QueryParser.parseTerm\n case lunr.QueryLexer.FIELD:\n parser.nextClause()\n return lunr.QueryParser.parseField\n case lunr.QueryLexer.EDIT_DISTANCE:\n return lunr.QueryParser.parseEditDistance\n case lunr.QueryLexer.BOOST:\n return lunr.QueryParser.parseBoost\n case lunr.QueryLexer.PRESENCE:\n parser.nextClause()\n return lunr.QueryParser.parsePresence\n default:\n var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n }\n}\n\n /**\n * export the module via AMD, CommonJS or as a browser global\n * Export code from https://github.com/umdjs/umd/blob/master/returnExports.js\n */\n ;(function (root, factory) {\n if (typeof define === 'function' && define.amd) {\n // AMD. Register as an anonymous module.\n define(factory)\n } else if (typeof exports === 'object') {\n /**\n * Node. Does not work with strict CommonJS, but\n * only CommonJS-like enviroments that support module.exports,\n * like Node.\n */\n module.exports = factory()\n } else {\n // Browser globals (root is window)\n root.lunr = factory()\n }\n }(this, function () {\n /**\n * Just return a value to define the module export.\n * This example returns an object, but the module\n * can return a function as the exported value.\n */\n return lunr\n }))\n})();\n", "/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport lunr from \"lunr\"\n\nimport { Search, SearchIndexConfig } from \"../../_\"\nimport {\n SearchMessage,\n SearchMessageType\n} from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Add support for usage with `iframe-worker` polyfill\n *\n * While `importScripts` is synchronous when executed inside of a web worker,\n * it's not possible to provide a synchronous polyfilled implementation. The\n * cool thing is that awaiting a non-Promise is a noop, so extending the type\n * definition to return a `Promise` shouldn't break anything.\n *\n * @see https://bit.ly/2PjDnXi - GitHub comment\n */\ndeclare global {\n function importScripts(...urls: string[]): Promise | void\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index\n */\nlet index: Search\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch (= import) multi-language support through `lunr-languages`\n *\n * This function automatically imports the stemmers necessary to process the\n * languages, which are defined through the search index configuration.\n *\n * If the worker runs inside of an `iframe` (when using `iframe-worker` as\n * a shim), the base URL for the stemmers to be loaded must be determined by\n * searching for the first `script` element with a `src` attribute, which will\n * contain the contents of this script.\n *\n * @param config - Search index configuration\n *\n * @returns Promise resolving with no result\n */\nasync function setupSearchLanguages(\n config: SearchIndexConfig\n): Promise {\n let base = \"../lunr\"\n\n /* Detect `iframe-worker` and fix base URL */\n if (typeof parent !== \"undefined\" && \"IFrameWorker\" in parent) {\n const worker = document.querySelector(\"script[src]\")!\n const [path] = worker.src.split(\"/worker\")\n\n /* Prefix base with path */\n base = base.replace(\"..\", path)\n }\n\n /* Add scripts for languages */\n const scripts = []\n for (const lang of config.lang) {\n switch (lang) {\n\n /* Add segmenter for Japanese */\n case \"ja\":\n scripts.push(`${base}/tinyseg.js`)\n break\n\n /* Add segmenter for Hindi and Thai */\n case \"hi\":\n case \"th\":\n scripts.push(`${base}/wordcut.js`)\n break\n }\n\n /* Add language support */\n if (lang !== \"en\")\n scripts.push(`${base}/min/lunr.${lang}.min.js`)\n }\n\n /* Add multi-language support */\n if (config.lang.length > 1)\n scripts.push(`${base}/min/lunr.multi.min.js`)\n\n /* Load scripts synchronously */\n if (scripts.length)\n await importScripts(\n `${base}/min/lunr.stemmer.support.min.js`,\n ...scripts\n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Message handler\n *\n * @param message - Source message\n *\n * @returns Target message\n */\nexport async function handler(\n message: SearchMessage\n): Promise {\n switch (message.type) {\n\n /* Search setup message */\n case SearchMessageType.SETUP:\n await setupSearchLanguages(message.data.config)\n index = new Search(message.data)\n return {\n type: SearchMessageType.READY\n }\n\n /* Search query message */\n case SearchMessageType.QUERY:\n return {\n type: SearchMessageType.RESULT,\n data: index ? index.search(message.data) : []\n }\n\n /* All other messages */\n default:\n throw new TypeError(\"Invalid message type\")\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Worker\n * ------------------------------------------------------------------------- */\n\n/* @ts-ignore - expose Lunr.js in global scope, or stemmers will not work */\nself.lunr = lunr\n\n/* Handle messages */\naddEventListener(\"message\", async ev => {\n postMessage(await handler(ev.data))\n})\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport interface SearchDocument extends SearchIndexDocument {\n parent?: SearchIndexDocument /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @returns Search document map\n */\nexport function setupSearchDocumentMap(\n docs: SearchIndexDocument[]\n): SearchDocumentMap {\n const documents = new Map()\n const parents = new Set()\n for (const doc of docs) {\n const [path, hash] = doc.location.split(\"#\")\n\n /* Extract location and title */\n const location = doc.location\n const title = doc.title\n\n /* Escape and cleanup text */\n const text = escapeHTML(doc.text)\n .replace(/\\s+(?=[,.:;!?])/g, \"\")\n .replace(/\\s+/g, \" \")\n\n /* Handle section */\n if (hash) {\n const parent = documents.get(path)!\n\n /* Ignore first section, override article */\n if (!parents.has(parent)) {\n parent.title = doc.title\n parent.text = text\n\n /* Remember that we processed the article */\n parents.add(parent)\n\n /* Add subsequent section */\n } else {\n documents.set(location, {\n location,\n title,\n text,\n parent\n })\n }\n\n /* Add article */\n } else {\n documents.set(location, {\n location,\n title,\n text\n })\n }\n }\n return documents\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndexConfig } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlight function\n *\n * @param value - Value\n *\n * @returns Highlighted value\n */\nexport type SearchHighlightFn = (value: string) => string\n\n/**\n * Search highlight factory function\n *\n * @param query - Query value\n *\n * @returns Search highlight function\n */\nexport type SearchHighlightFactoryFn = (query: string) => SearchHighlightFn\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search highlighter\n *\n * @param config - Search index configuration\n *\n * @returns Search highlight factory function\n */\nexport function setupSearchHighlighter(\n config: SearchIndexConfig\n): SearchHighlightFactoryFn {\n const separator = new RegExp(config.separator, \"img\")\n const highlight = (_: unknown, data: string, term: string) => {\n return `${data}${term}`\n }\n\n /* Return factory function */\n return (query: string) => {\n query = query\n .replace(/[\\s*+\\-:~^]+/g, \" \")\n .trim()\n\n /* Create search term match expression */\n const match = new RegExp(`(^|${config.separator})(${\n query\n .replace(/[|\\\\{}()[\\]^$+*?.-]/g, \"\\\\$&\")\n .replace(separator, \"|\")\n })`, \"img\")\n\n /* Highlight string value */\n return value => value\n .replace(match, highlight)\n .replace(/<\\/mark>(\\s+)]*>/img, \"$1\")\n }\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query clause\n */\nexport interface SearchQueryClause {\n presence: lunr.Query.presence /* Clause presence */\n term: string /* Clause term */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search query terms\n */\nexport type SearchQueryTerms = Record\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Parse a search query for analysis\n *\n * @param value - Query value\n *\n * @returns Search query clauses\n */\nexport function parseSearchQuery(\n value: string\n): SearchQueryClause[] {\n const query = new (lunr as any).Query([\"title\", \"text\"])\n const parser = new (lunr as any).QueryParser(value, query)\n\n /* Parse and return query clauses */\n parser.parse()\n return query.clauses\n}\n\n/**\n * Analyze the search query clauses in regard to the search terms found\n *\n * @param query - Search query clauses\n * @param terms - Search terms\n *\n * @returns Search query terms\n */\nexport function getSearchQueryTerms(\n query: SearchQueryClause[], terms: string[]\n): SearchQueryTerms {\n const clauses = new Set(query)\n\n /* Match query clauses against terms */\n const result: SearchQueryTerms = {}\n for (let t = 0; t < terms.length; t++)\n for (const clause of clauses)\n if (terms[t].startsWith(clause.term)) {\n result[clause.term] = true\n clauses.delete(clause)\n }\n\n /* Annotate unmatched query clauses */\n for (const clause of clauses)\n result[clause.term] = false\n\n /* Return query terms */\n return result\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n SearchDocument,\n SearchDocumentMap,\n setupSearchDocumentMap\n} from \"../document\"\nimport {\n SearchHighlightFactoryFn,\n setupSearchHighlighter\n} from \"../highlighter\"\nimport {\n SearchQueryTerms,\n getSearchQueryTerms,\n parseSearchQuery\n} from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index configuration\n */\nexport interface SearchIndexConfig {\n lang: string[] /* Search languages */\n separator: string /* Search separator */\n}\n\n/**\n * Search index document\n */\nexport interface SearchIndexDocument {\n location: string /* Document location */\n title: string /* Document title */\n text: string /* Document text */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index pipeline function\n */\nexport type SearchIndexPipelineFn =\n | \"trimmer\" /* Trimmer */\n | \"stopWordFilter\" /* Stop word filter */\n | \"stemmer\" /* Stemmer */\n\n/**\n * Search index pipeline\n */\nexport type SearchIndexPipeline = SearchIndexPipelineFn[]\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * This interfaces describes the format of the `search_index.json` file which\n * is automatically built by the MkDocs search plugin.\n */\nexport interface SearchIndex {\n config: SearchIndexConfig /* Search index configuration */\n docs: SearchIndexDocument[] /* Search index documents */\n index?: object /* Prebuilt index */\n pipeline?: SearchIndexPipeline /* Search index pipeline */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search metadata\n */\nexport interface SearchMetadata {\n score: number /* Score (relevance) */\n terms: SearchQueryTerms /* Search query terms */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search result\n */\nexport type SearchResult = Array\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Compute the difference of two lists of strings\n *\n * @param a - 1st list of strings\n * @param b - 2nd list of strings\n *\n * @returns Difference\n */\nfunction difference(a: string[], b: string[]): string[] {\n const [x, y] = [new Set(a), new Set(b)]\n return [\n ...new Set([...x].filter(value => !y.has(value)))\n ]\n}\n\n/* ----------------------------------------------------------------------------\n * Class\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index\n */\nexport class Search {\n\n /**\n * Search document mapping\n *\n * A mapping of URLs (including hash fragments) to the actual articles and\n * sections of the documentation. The search document mapping must be created\n * regardless of whether the index was prebuilt or not, as Lunr.js itself\n * only stores the actual index.\n */\n protected documents: SearchDocumentMap\n\n /**\n * Search highlight factory function\n */\n protected highlight: SearchHighlightFactoryFn\n\n /**\n * The underlying Lunr.js search index\n */\n protected index: lunr.Index\n\n /**\n * Create the search integration\n *\n * @param data - Search index\n */\n public constructor({ config, docs, pipeline, index }: SearchIndex) {\n this.documents = setupSearchDocumentMap(docs)\n this.highlight = setupSearchHighlighter(config)\n\n /* Set separator for tokenizer */\n lunr.tokenizer.separator = new RegExp(config.separator)\n\n /* If no index was given, create it */\n if (typeof index === \"undefined\") {\n this.index = lunr(function () {\n\n /* Set up multi-language support */\n if (config.lang.length === 1 && config.lang[0] !== \"en\") {\n this.use((lunr as any)[config.lang[0]])\n } else if (config.lang.length > 1) {\n this.use((lunr as any).multiLanguage(...config.lang))\n }\n\n /* Compute functions to be removed from the pipeline */\n const fns = difference([\n \"trimmer\", \"stopWordFilter\", \"stemmer\"\n ], pipeline!)\n\n /* Remove functions from the pipeline for registered languages */\n for (const lang of config.lang.map(language => (\n language === \"en\" ? lunr : (lunr as any)[language]\n ))) {\n for (const fn of fns) {\n this.pipeline.remove(lang[fn])\n this.searchPipeline.remove(lang[fn])\n }\n }\n\n /* Set up fields and reference */\n this.field(\"title\", { boost: 1000 })\n this.field(\"text\")\n this.ref(\"location\")\n\n /* Index documents */\n for (const doc of docs)\n this.add(doc)\n })\n\n /* Handle prebuilt index */\n } else {\n this.index = lunr.Index.load(index)\n }\n }\n\n /**\n * Search for matching documents\n *\n * The search index which MkDocs provides is divided up into articles, which\n * contain the whole content of the individual pages, and sections, which only\n * contain the contents of the subsections obtained by breaking the individual\n * pages up at `h1` ... `h6`. As there may be many sections on different pages\n * with identical titles (for example within this very project, e.g. \"Usage\"\n * or \"Installation\"), they need to be put into the context of the containing\n * page. For this reason, section results are grouped within their respective\n * articles which are the top-level results that are returned.\n *\n * @param query - Query value\n *\n * @returns Search results\n */\n public search(query: string): SearchResult[] {\n if (query) {\n try {\n const highlight = this.highlight(query)\n\n /* Parse query to extract clauses for analysis */\n const clauses = parseSearchQuery(query)\n .filter(clause => (\n clause.presence !== lunr.Query.presence.PROHIBITED\n ))\n\n /* Perform search and post-process results */\n const groups = this.index.search(`${query}*`)\n\n /* Apply post-query boosts based on title and search query terms */\n .reduce((results, { ref, score, matchData }) => {\n const document = this.documents.get(ref)\n if (typeof document !== \"undefined\") {\n const { location, title, text, parent } = document\n\n /* Compute and analyze search query terms */\n const terms = getSearchQueryTerms(\n clauses,\n Object.keys(matchData.metadata)\n )\n\n /* Highlight title and text and apply post-query boosts */\n const boost = +!parent + +Object.values(terms).every(t => t)\n results.push({\n location,\n title: highlight(title),\n text: highlight(text),\n score: score * (1 + boost),\n terms\n })\n }\n return results\n }, [])\n\n /* Sort search results again after applying boosts */\n .sort((a, b) => b.score - a.score)\n\n /* Group search results by page */\n .reduce((results, result) => {\n const document = this.documents.get(result.location)\n if (typeof document !== \"undefined\") {\n const ref = \"parent\" in document\n ? document.parent!.location\n : document.location\n results.set(ref, [...results.get(ref) || [], result])\n }\n return results\n }, new Map())\n\n /* Expand grouped search results */\n return [...groups.values()]\n\n /* Log errors to console (for now) */\n } catch {\n console.warn(`Invalid query: ${query} \u2013 see https://bit.ly/2s3ChXG`)\n }\n }\n\n /* Return nothing in case of error or empty query */\n return []\n }\n}\n", "/*\n * Copyright (c) 2016-2021 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchResult } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search message type\n */\nexport const enum SearchMessageType {\n SETUP, /* Search index setup */\n READY, /* Search index ready */\n QUERY, /* Search query */\n RESULT /* Search results */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message containing the data necessary to setup the search index\n */\nexport interface SearchSetupMessage {\n type: SearchMessageType.SETUP /* Message type */\n data: SearchIndex /* Message data */\n}\n\n/**\n * A message indicating the search index is ready\n */\nexport interface SearchReadyMessage {\n type: SearchMessageType.READY /* Message type */\n}\n\n/**\n * A message containing a search query\n */\nexport interface SearchQueryMessage {\n type: SearchMessageType.QUERY /* Message type */\n data: string /* Message data */\n}\n\n/**\n * A message containing results for a search query\n */\nexport interface SearchResultMessage {\n type: SearchMessageType.RESULT /* Message type */\n data: SearchResult[] /* Message data */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message exchanged with the search worker\n */\nexport type SearchMessage =\n | SearchSetupMessage\n | SearchReadyMessage\n | SearchQueryMessage\n | SearchResultMessage\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Type guard for search setup messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchSetupMessage(\n message: SearchMessage\n): message is SearchSetupMessage {\n return message.type === SearchMessageType.SETUP\n}\n\n/**\n * Type guard for search ready messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchReadyMessage(\n message: SearchMessage\n): message is SearchReadyMessage {\n return message.type === SearchMessageType.READY\n}\n\n/**\n * Type guard for search query messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchQueryMessage(\n message: SearchMessage\n): message is SearchQueryMessage {\n return message.type === SearchMessageType.QUERY\n}\n\n/**\n * Type guard for search result messages\n *\n * @param message - Search worker message\n *\n * @returns Test result\n */\nexport function isSearchResultMessage(\n message: SearchMessage\n): message is SearchResultMessage {\n return message.type === SearchMessageType.RESULT\n}\n"], + "mappings": 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Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Keyboard key\n .keys {\n\n // Keyboard key icon\n kbd::before,\n kbd::after {\n position: relative;\n margin: 0;\n color: inherit;\n -moz-osx-font-smoothing: initial;\n -webkit-font-smoothing: initial;\n }\n\n // Surrounding text\n span {\n padding: 0 px2em(3.2px);\n color: var(--md-default-fg-color--light);\n }\n\n // Define keyboard keys with left icon\n @each $name, $code in (\n\n // Modifiers\n \"alt\": \"\\2387\",\n \"left-alt\": \"\\2387\",\n 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\"\\2913\",\n \"escape\": \"\\238B\",\n \"home\": \"\\2912\",\n \"insert\": \"\\2380\",\n \"page-down\": \"\\21DF\",\n \"page-up\": \"\\21DE\",\n \"print-screen\": \"\\2399\"\n ) {\n .key-#{$name} {\n &::before {\n padding-right: px2em(6.4px);\n content: $code;\n }\n }\n }\n\n // Define keyboard keys with right icon\n @each $name, $code in (\n \"tab\": \"\\21E5\",\n \"num-enter\": \"\\2324\",\n \"enter\": \"\\23CE\"\n ) {\n .key-#{$name} {\n &::after {\n padding-left: px2em(6.4px);\n content: $code;\n }\n }\n }\n }\n}\n","@charset \"UTF-8\";\nhtml {\n box-sizing: border-box;\n text-size-adjust: none;\n}\n\n*,\n*::before,\n*::after {\n box-sizing: inherit;\n}\n\nbody {\n margin: 0;\n}\n\na,\nbutton,\nlabel,\ninput {\n -webkit-tap-highlight-color: transparent;\n}\n\na {\n color: inherit;\n text-decoration: none;\n}\n\nhr {\n display: block;\n box-sizing: content-box;\n height: 0.05rem;\n padding: 0;\n overflow: visible;\n border: 0;\n}\n\nsmall {\n font-size: 80%;\n}\n\nsub,\nsup {\n line-height: 1em;\n}\n\nimg {\n border-style: none;\n}\n\ntable {\n border-collapse: separate;\n border-spacing: 0;\n}\n\ntd,\nth {\n font-weight: 400;\n vertical-align: top;\n}\n\nbutton {\n margin: 0;\n padding: 0;\n font-size: inherit;\n font-family: inherit;\n background: transparent;\n border: 0;\n}\n\ninput {\n border: 0;\n outline: none;\n}\n\n:root {\n --md-default-fg-color: hsla(0, 0%, 0%, 0.87);\n --md-default-fg-color--light: hsla(0, 0%, 0%, 0.54);\n --md-default-fg-color--lighter: hsla(0, 0%, 0%, 0.32);\n --md-default-fg-color--lightest: hsla(0, 0%, 0%, 0.07);\n --md-default-bg-color: hsla(0, 0%, 100%, 1);\n --md-default-bg-color--light: hsla(0, 0%, 100%, 0.7);\n --md-default-bg-color--lighter: hsla(0, 0%, 100%, 0.3);\n --md-default-bg-color--lightest: hsla(0, 0%, 100%, 0.12);\n --md-primary-fg-color: hsla(231, 48%, 48%, 1);\n --md-primary-fg-color--light: hsla(231, 44%, 56%, 1);\n --md-primary-fg-color--dark: hsla(232, 54%, 41%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n --md-accent-fg-color: hsla(231, 99%, 66%, 1);\n --md-accent-fg-color--transparent: hsla(231, 99%, 66%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n:root > * {\n --md-code-fg-color: hsla(200, 18%, 26%, 1);\n --md-code-bg-color: hsla(0, 0%, 96%, 1);\n --md-code-hl-color: hsla(60, 100%, 50%, 0.5);\n --md-code-hl-number-color: hsla(0, 67%, 50%, 1);\n --md-code-hl-special-color: hsla(340, 83%, 47%, 1);\n --md-code-hl-function-color: hsla(291, 45%, 50%, 1);\n --md-code-hl-constant-color: hsla(250, 63%, 60%, 1);\n --md-code-hl-keyword-color: hsla(219, 54%, 51%, 1);\n --md-code-hl-string-color: hsla(150, 63%, 30%, 1);\n --md-code-hl-name-color: var(--md-code-fg-color);\n --md-code-hl-operator-color: var(--md-default-fg-color--light);\n --md-code-hl-punctuation-color: var(--md-default-fg-color--light);\n --md-code-hl-comment-color: var(--md-default-fg-color--light);\n --md-code-hl-generic-color: var(--md-default-fg-color--light);\n --md-code-hl-variable-color: var(--md-default-fg-color--light);\n --md-typeset-color: var(--md-default-fg-color);\n --md-typeset-a-color: var(--md-primary-fg-color);\n --md-typeset-mark-color: hsla(60, 100%, 50%, 0.5);\n --md-typeset-del-color: hsla(6, 90%, 60%, 0.15);\n --md-typeset-ins-color: hsla(150, 90%, 44%, 0.15);\n --md-typeset-kbd-color: hsla(0, 0%, 98%, 1);\n --md-typeset-kbd-accent-color: hsla(0, 100%, 100%, 1);\n --md-typeset-kbd-border-color: hsla(0, 0%, 72%, 1);\n --md-admonition-fg-color: var(--md-default-fg-color);\n --md-admonition-bg-color: var(--md-default-bg-color);\n --md-footer-fg-color: hsla(0, 0%, 100%, 1);\n --md-footer-fg-color--light: hsla(0, 0%, 100%, 0.7);\n --md-footer-fg-color--lighter: hsla(0, 0%, 100%, 0.3);\n --md-footer-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-footer-bg-color--dark: hsla(0, 0%, 0%, 0.32);\n}\n\n.md-icon svg {\n display: block;\n width: 1.2rem;\n height: 1.2rem;\n fill: currentColor;\n}\n\nbody {\n -webkit-font-smoothing: antialiased;\n -moz-osx-font-smoothing: grayscale;\n}\n\nbody,\ninput {\n color: var(--md-typeset-color);\n font-feature-settings: \"kern\", \"liga\";\n font-family: var(--md-text-font-family, _), -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;\n}\n\ncode,\npre,\nkbd {\n color: var(--md-typeset-color);\n font-feature-settings: \"kern\";\n font-family: var(--md-code-font-family, _), SFMono-Regular, Consolas, Menlo, monospace;\n}\n\n:root {\n --md-typeset-table--ascending: svg-load(\"material/arrow-down.svg\");\n --md-typeset-table--descending: svg-load(\"material/arrow-up.svg\");\n}\n\n.md-typeset {\n font-size: 0.8rem;\n line-height: 1.6;\n color-adjust: exact;\n}\n@media print {\n .md-typeset {\n font-size: 0.68rem;\n }\n}\n.md-typeset ul,\n.md-typeset ol,\n.md-typeset dl,\n.md-typeset figure,\n.md-typeset blockquote,\n.md-typeset pre {\n margin: 1em 0;\n}\n.md-typeset h1 {\n margin: 0 0 1.25em;\n color: var(--md-default-fg-color--light);\n font-weight: 300;\n font-size: 2em;\n line-height: 1.3;\n letter-spacing: -0.01em;\n}\n.md-typeset h2 {\n margin: 1.6em 0 0.64em;\n font-weight: 300;\n font-size: 1.5625em;\n line-height: 1.4;\n letter-spacing: -0.01em;\n}\n.md-typeset h3 {\n margin: 1.6em 0 0.8em;\n font-weight: 400;\n font-size: 1.25em;\n line-height: 1.5;\n letter-spacing: -0.01em;\n}\n.md-typeset h2 + h3 {\n margin-top: 0.8em;\n}\n.md-typeset h4 {\n margin: 1em 0;\n font-weight: 700;\n letter-spacing: -0.01em;\n}\n.md-typeset h5,\n.md-typeset h6 {\n margin: 1.25em 0;\n color: var(--md-default-fg-color--light);\n font-weight: 700;\n font-size: 0.8em;\n letter-spacing: -0.01em;\n}\n.md-typeset h5 {\n text-transform: uppercase;\n}\n.md-typeset hr {\n display: flow-root;\n margin: 1.5em 0;\n border-bottom: 0.05rem solid var(--md-default-fg-color--lightest);\n}\n.md-typeset a {\n color: var(--md-typeset-a-color);\n word-break: break-word;\n}\n.md-typeset a, .md-typeset a::before {\n transition: color 125ms;\n}\n.md-typeset a:focus, .md-typeset a:hover {\n color: var(--md-accent-fg-color);\n}\n.md-typeset a.focus-visible {\n outline-color: var(--md-accent-fg-color);\n outline-offset: 0.2rem;\n}\n.md-typeset code,\n.md-typeset pre,\n.md-typeset kbd {\n color: var(--md-code-fg-color);\n direction: ltr;\n}\n@media print {\n .md-typeset code,\n.md-typeset pre,\n.md-typeset kbd {\n white-space: pre-wrap;\n }\n}\n.md-typeset code {\n padding: 0 0.2941176471em;\n font-size: 0.85em;\n word-break: break-word;\n background-color: var(--md-code-bg-color);\n border-radius: 0.1rem;\n box-decoration-break: clone;\n}\n.md-typeset code:not(.focus-visible) {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n}\n.md-typeset h1 code,\n.md-typeset h2 code,\n.md-typeset h3 code,\n.md-typeset h4 code,\n.md-typeset h5 code,\n.md-typeset h6 code {\n margin: initial;\n padding: initial;\n background-color: transparent;\n box-shadow: none;\n}\n.md-typeset a code {\n color: currentColor;\n}\n.md-typeset pre {\n position: relative;\n display: flow-root;\n line-height: 1.4;\n}\n.md-typeset pre > code {\n display: block;\n margin: 0;\n padding: 0.7720588235em 1.1764705882em;\n overflow: auto;\n word-break: normal;\n box-shadow: none;\n box-decoration-break: slice;\n touch-action: auto;\n scrollbar-width: thin;\n scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n}\n.md-typeset pre > code:hover {\n scrollbar-color: var(--md-accent-fg-color) transparent;\n}\n.md-typeset pre > code::-webkit-scrollbar {\n width: 0.2rem;\n height: 0.2rem;\n}\n.md-typeset pre > code::-webkit-scrollbar-thumb {\n background-color: var(--md-default-fg-color--lighter);\n}\n.md-typeset pre > code::-webkit-scrollbar-thumb:hover {\n background-color: var(--md-accent-fg-color);\n}\n@media screen and (max-width: 44.9375em) {\n .md-typeset > pre {\n margin: 1em -0.8rem;\n }\n .md-typeset > pre code {\n border-radius: 0;\n }\n}\n.md-typeset kbd {\n display: inline-block;\n padding: 0 0.6666666667em;\n color: var(--md-default-fg-color);\n font-size: 0.75em;\n vertical-align: text-top;\n word-break: break-word;\n background-color: var(--md-typeset-kbd-color);\n border-radius: 0.1rem;\n box-shadow: 0 0.1rem 0 0.05rem var(--md-typeset-kbd-border-color), 0 0.1rem 0 var(--md-typeset-kbd-border-color), 0 -0.1rem 0.2rem var(--md-typeset-kbd-accent-color) inset;\n}\n.md-typeset mark {\n color: inherit;\n word-break: break-word;\n background-color: var(--md-typeset-mark-color);\n box-decoration-break: clone;\n}\n.md-typeset abbr {\n text-decoration: none;\n border-bottom: 0.05rem dotted var(--md-default-fg-color--light);\n cursor: help;\n}\n@media (hover: none) {\n .md-typeset abbr {\n position: relative;\n }\n .md-typeset abbr[title]:focus::after, .md-typeset abbr[title]:hover::after {\n box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);\n position: absolute;\n left: 0;\n display: inline-block;\n width: auto;\n min-width: max-content;\n max-width: 80%;\n margin-top: 2em;\n padding: 0.2rem 0.3rem;\n color: var(--md-default-bg-color);\n font-size: 0.7rem;\n background-color: var(--md-default-fg-color);\n border-radius: 0.1rem;\n content: attr(title);\n }\n}\n.md-typeset small {\n opacity: 0.75;\n}\n.md-typeset sup,\n.md-typeset sub {\n margin-left: 0.078125em;\n}\n[dir=rtl] .md-typeset sup,\n[dir=rtl] .md-typeset sub {\n margin-right: 0.078125em;\n margin-left: initial;\n}\n.md-typeset blockquote {\n display: flow-root;\n padding-left: 0.6rem;\n color: var(--md-default-fg-color--light);\n border-left: 0.2rem solid var(--md-default-fg-color--lighter);\n}\n[dir=rtl] .md-typeset blockquote {\n padding-right: 0.6rem;\n padding-left: initial;\n border-right: 0.2rem solid var(--md-default-fg-color--lighter);\n border-left: initial;\n}\n.md-typeset ul {\n list-style-type: disc;\n}\n.md-typeset ul,\n.md-typeset ol {\n display: flow-root;\n margin-left: 0.625em;\n padding: 0;\n}\n[dir=rtl] .md-typeset ul,\n[dir=rtl] .md-typeset ol {\n margin-right: 0.625em;\n margin-left: initial;\n}\n.md-typeset ul ol,\n.md-typeset ol ol {\n list-style-type: lower-alpha;\n}\n.md-typeset ul ol ol,\n.md-typeset ol ol ol {\n list-style-type: lower-roman;\n}\n.md-typeset ul li,\n.md-typeset ol li {\n margin-bottom: 0.5em;\n margin-left: 1.25em;\n}\n[dir=rtl] .md-typeset ul li,\n[dir=rtl] .md-typeset ol li {\n margin-right: 1.25em;\n margin-left: initial;\n}\n.md-typeset ul li p,\n.md-typeset ul li blockquote,\n.md-typeset ol li p,\n.md-typeset ol li blockquote {\n margin: 0.5em 0;\n}\n.md-typeset ul li:last-child,\n.md-typeset ol li:last-child {\n margin-bottom: 0;\n}\n.md-typeset ul li ul,\n.md-typeset ul li ol,\n.md-typeset ol li ul,\n.md-typeset ol li ol {\n margin: 0.5em 0 0.5em 0.625em;\n}\n[dir=rtl] .md-typeset ul li ul,\n[dir=rtl] .md-typeset ul li ol,\n[dir=rtl] .md-typeset ol li ul,\n[dir=rtl] .md-typeset ol li ol {\n margin-right: 0.625em;\n margin-left: initial;\n}\n.md-typeset dd {\n margin: 1em 0 1.5em 1.875em;\n}\n[dir=rtl] .md-typeset dd {\n margin-right: 1.875em;\n margin-left: initial;\n}\n.md-typeset img,\n.md-typeset svg {\n max-width: 100%;\n height: auto;\n}\n.md-typeset img[align=left],\n.md-typeset svg[align=left] {\n margin: 1em;\n margin-left: 0;\n}\n.md-typeset img[align=right],\n.md-typeset svg[align=right] {\n margin: 1em;\n margin-right: 0;\n}\n.md-typeset img[align]:only-child,\n.md-typeset svg[align]:only-child {\n margin-top: 0;\n}\n.md-typeset figure {\n display: flow-root;\n width: fit-content;\n max-width: 100%;\n margin: 0 auto;\n text-align: center;\n}\n.md-typeset figure img {\n display: block;\n}\n.md-typeset figcaption {\n max-width: 24rem;\n margin: 1em auto 2em;\n font-style: italic;\n}\n.md-typeset iframe {\n max-width: 100%;\n}\n.md-typeset table:not([class]) {\n display: inline-block;\n max-width: 100%;\n overflow: auto;\n font-size: 0.64rem;\n background-color: var(--md-default-bg-color);\n border-radius: 0.1rem;\n box-shadow: 0 0.2rem 0.5rem rgba(0, 0, 0, 0.05), 0 0 0.05rem rgba(0, 0, 0, 0.1);\n touch-action: auto;\n}\n@media print {\n .md-typeset table:not([class]) {\n display: table;\n }\n}\n.md-typeset table:not([class]) + * {\n margin-top: 1.5em;\n}\n.md-typeset table:not([class]) th > *:first-child,\n.md-typeset table:not([class]) td > *:first-child {\n margin-top: 0;\n}\n.md-typeset table:not([class]) th > *:last-child,\n.md-typeset table:not([class]) td > *:last-child {\n margin-bottom: 0;\n}\n.md-typeset table:not([class]) th:not([align]),\n.md-typeset table:not([class]) td:not([align]) {\n text-align: left;\n}\n[dir=rtl] .md-typeset table:not([class]) th:not([align]),\n[dir=rtl] .md-typeset table:not([class]) td:not([align]) {\n text-align: right;\n}\n.md-typeset table:not([class]) th {\n min-width: 5rem;\n padding: 0.9375em 1.25em;\n color: var(--md-default-bg-color);\n vertical-align: top;\n background-color: var(--md-default-fg-color--light);\n}\n.md-typeset table:not([class]) th a {\n color: inherit;\n}\n.md-typeset table:not([class]) td {\n padding: 0.9375em 1.25em;\n vertical-align: top;\n border-top: 0.05rem solid var(--md-default-fg-color--lightest);\n}\n.md-typeset table:not([class]) tr {\n transition: background-color 125ms;\n}\n.md-typeset table:not([class]) tr:hover {\n background-color: rgba(0, 0, 0, 0.035);\n box-shadow: 0 0.05rem 0 var(--md-default-bg-color) inset;\n}\n.md-typeset table:not([class]) tr:first-child td {\n border-top: 0;\n}\n.md-typeset table:not([class]) a {\n word-break: normal;\n}\n.md-typeset table th[role=columnheader] {\n cursor: pointer;\n}\n.md-typeset table th[role=columnheader]::after {\n display: inline-block;\n width: 1.2em;\n height: 1.2em;\n margin-left: 0.5em;\n vertical-align: sub;\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n}\n.md-typeset table th[role=columnheader][aria-sort=ascending]::after {\n background-color: currentColor;\n mask-image: var(--md-typeset-table--ascending);\n}\n.md-typeset table th[role=columnheader][aria-sort=descending]::after {\n background-color: currentColor;\n mask-image: var(--md-typeset-table--descending);\n}\n.md-typeset__scrollwrap {\n margin: 1em -0.8rem;\n overflow-x: auto;\n touch-action: auto;\n}\n.md-typeset__table {\n display: inline-block;\n margin-bottom: 0.5em;\n padding: 0 0.8rem;\n}\n@media print {\n .md-typeset__table {\n display: block;\n }\n}\nhtml .md-typeset__table table {\n display: table;\n width: 100%;\n margin: 0;\n overflow: hidden;\n}\n\nhtml {\n height: 100%;\n overflow-x: hidden;\n font-size: 125%;\n}\n@media screen and (min-width: 100em) {\n html {\n font-size: 137.5%;\n }\n}\n@media screen and (min-width: 125em) {\n html {\n font-size: 150%;\n }\n}\n\nbody {\n position: relative;\n display: flex;\n flex-direction: column;\n width: 100%;\n min-height: 100%;\n font-size: 0.5rem;\n background-color: var(--md-default-bg-color);\n}\n@media print {\n body {\n display: block;\n }\n}\n@media screen and (max-width: 59.9375em) {\n body[data-md-state=lock] {\n position: fixed;\n }\n}\n\n.md-grid {\n max-width: 61rem;\n margin-right: auto;\n margin-left: auto;\n}\n\n.md-container {\n display: flex;\n flex-direction: column;\n flex-grow: 1;\n}\n@media print {\n .md-container {\n display: block;\n }\n}\n\n.md-main {\n flex-grow: 1;\n}\n.md-main__inner {\n display: flex;\n height: 100%;\n margin-top: 1.5rem;\n}\n\n.md-ellipsis {\n overflow: hidden;\n white-space: nowrap;\n text-overflow: ellipsis;\n}\n\n.md-toggle {\n display: none;\n}\n\n.md-option {\n position: absolute;\n width: 0;\n height: 0;\n opacity: 0;\n}\n.md-option:checked + label:not([hidden]) {\n display: block;\n}\n.md-option.focus-visible + label {\n outline-style: auto;\n outline-color: var(--md-accent-fg-color);\n}\n\n.md-skip {\n position: fixed;\n z-index: -1;\n margin: 0.5rem;\n padding: 0.3rem 0.5rem;\n color: var(--md-default-bg-color);\n font-size: 0.64rem;\n background-color: var(--md-default-fg-color);\n border-radius: 0.1rem;\n outline-color: var(--md-accent-fg-color);\n transform: translateY(0.4rem);\n opacity: 0;\n}\n.md-skip:focus {\n z-index: 10;\n transform: translateY(0);\n opacity: 1;\n transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1), opacity 175ms 75ms;\n}\n\n@page {\n margin: 25mm;\n}\n.md-announce {\n overflow: auto;\n background-color: var(--md-footer-bg-color);\n}\n@media print {\n .md-announce {\n display: none;\n }\n}\n.md-announce__inner {\n margin: 0.6rem auto;\n padding: 0 0.8rem;\n color: var(--md-footer-fg-color);\n font-size: 0.7rem;\n}\n\n:root {\n --md-clipboard-icon: svg-load(\"material/content-copy.svg\");\n}\n\n.md-clipboard {\n position: absolute;\n top: 0.5em;\n right: 0.5em;\n z-index: 1;\n width: 1.5em;\n height: 1.5em;\n color: var(--md-default-fg-color--lightest);\n border-radius: 0.1rem;\n outline-color: var(--md-accent-fg-color);\n outline-offset: 0.1rem;\n cursor: pointer;\n transition: color 250ms;\n}\n@media print {\n .md-clipboard {\n display: none;\n }\n}\n.md-clipboard:not(.focus-visible) {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n}\n:hover > .md-clipboard {\n color: var(--md-default-fg-color--light);\n}\n.md-clipboard:focus, .md-clipboard:hover {\n color: var(--md-accent-fg-color);\n}\n.md-clipboard::after {\n display: block;\n width: 1.125em;\n height: 1.125em;\n margin: 0 auto;\n background-color: currentColor;\n mask-image: var(--md-clipboard-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n}\n.md-clipboard--inline {\n cursor: pointer;\n}\n.md-clipboard--inline code {\n transition: color 250ms, background-color 250ms;\n}\n.md-clipboard--inline:focus code, .md-clipboard--inline:hover code {\n color: var(--md-accent-fg-color);\n background-color: var(--md-accent-fg-color--transparent);\n}\n\n.md-content {\n flex-grow: 1;\n overflow: hidden;\n scroll-padding-top: 51.2rem;\n}\n.md-content__inner {\n margin: 0 0.8rem 1.2rem;\n padding-top: 0.6rem;\n}\n@media screen and (min-width: 76.25em) {\n .md-sidebar--primary:not([hidden]) ~ .md-content > .md-content__inner {\n margin-left: 1.2rem;\n }\n [dir=rtl] .md-sidebar--primary:not([hidden]) ~ .md-content > .md-content__inner {\n margin-right: 1.2rem;\n margin-left: 0.8rem;\n }\n .md-sidebar--secondary:not([hidden]) ~ .md-content > .md-content__inner {\n margin-right: 1.2rem;\n }\n [dir=rtl] .md-sidebar--secondary:not([hidden]) ~ .md-content > .md-content__inner {\n margin-right: 0.8rem;\n margin-left: 1.2rem;\n }\n}\n.md-content__inner::before {\n display: block;\n height: 0.4rem;\n content: \"\";\n}\n.md-content__inner > :last-child {\n margin-bottom: 0;\n}\n.md-content__button {\n float: right;\n margin: 0.4rem 0;\n margin-left: 0.4rem;\n padding: 0;\n}\n@media print {\n .md-content__button {\n display: none;\n }\n}\n[dir=rtl] .md-content__button {\n float: left;\n margin-right: 0.4rem;\n margin-left: initial;\n}\n[dir=rtl] .md-content__button svg {\n transform: scaleX(-1);\n}\n.md-typeset .md-content__button {\n color: var(--md-default-fg-color--lighter);\n}\n.md-content__button svg {\n display: inline;\n vertical-align: top;\n}\n\n.md-dialog {\n box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);\n position: fixed;\n right: 0.8rem;\n bottom: 0.8rem;\n left: initial;\n z-index: 2;\n min-width: 11.1rem;\n padding: 0.4rem 0.6rem;\n background-color: var(--md-default-fg-color);\n border-radius: 0.1rem;\n transform: translateY(100%);\n opacity: 0;\n transition: transform 0ms 400ms, opacity 400ms;\n pointer-events: none;\n}\n@media print {\n .md-dialog {\n display: none;\n }\n}\n[dir=rtl] .md-dialog {\n right: initial;\n left: 0.8rem;\n}\n.md-dialog[data-md-state=open] {\n transform: translateY(0);\n opacity: 1;\n transition: transform 400ms cubic-bezier(0.075, 0.85, 0.175, 1), opacity 400ms;\n pointer-events: initial;\n}\n.md-dialog__inner {\n color: var(--md-default-bg-color);\n font-size: 0.7rem;\n}\n\n.md-typeset .md-button {\n display: inline-block;\n padding: 0.625em 2em;\n color: var(--md-primary-fg-color);\n font-weight: 700;\n border: 0.1rem solid currentColor;\n border-radius: 0.1rem;\n transition: color 125ms, background-color 125ms, border-color 125ms;\n}\n.md-typeset .md-button--primary {\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color);\n border-color: var(--md-primary-fg-color);\n}\n.md-typeset .md-button:focus, .md-typeset .md-button:hover {\n color: var(--md-accent-bg-color);\n background-color: var(--md-accent-fg-color);\n border-color: var(--md-accent-fg-color);\n}\n.md-typeset .md-input {\n height: 1.8rem;\n padding: 0 0.6rem;\n font-size: 0.8rem;\n border-radius: 0.1rem;\n box-shadow: 0 0.2rem 0.5rem rgba(0, 0, 0, 0.1), 0 0.025rem 0.05rem rgba(0, 0, 0, 0.1);\n transition: box-shadow 250ms;\n}\n.md-typeset .md-input:focus, .md-typeset .md-input:hover {\n box-shadow: 0 0.4rem 1rem rgba(0, 0, 0, 0.15), 0 0.025rem 0.05rem rgba(0, 0, 0, 0.15);\n}\n.md-typeset .md-input--stretch {\n width: 100%;\n}\n\n.md-header {\n position: sticky;\n top: 0;\n right: 0;\n left: 0;\n z-index: 2;\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color);\n box-shadow: 0 0 0.2rem rgba(0, 0, 0, 0), 0 0.2rem 0.4rem rgba(0, 0, 0, 0);\n}\n@media print {\n .md-header {\n display: none;\n }\n}\n.md-header[data-md-state=shadow] {\n box-shadow: 0 0 0.2rem rgba(0, 0, 0, 0.1), 0 0.2rem 0.4rem rgba(0, 0, 0, 0.2);\n transition: transform 250ms cubic-bezier(0.1, 0.7, 0.1, 1), box-shadow 250ms;\n}\n.md-header[data-md-state=hidden] {\n transform: translateY(-100%);\n transition: transform 250ms cubic-bezier(0.8, 0, 0.6, 1), box-shadow 250ms;\n}\n.md-header__inner {\n display: flex;\n align-items: center;\n padding: 0 0.2rem;\n}\n.md-header__button {\n position: relative;\n z-index: 1;\n margin: 0.2rem;\n padding: 0.4rem;\n color: currentColor;\n vertical-align: middle;\n outline-color: var(--md-accent-fg-color);\n cursor: pointer;\n transition: opacity 250ms;\n}\n.md-header__button:hover {\n opacity: 0.7;\n}\n.md-header__button:not([hidden]) {\n display: inline-block;\n}\n.md-header__button:not(.focus-visible) {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n}\n.md-header__button.md-logo {\n margin: 0.2rem;\n padding: 0.4rem;\n}\n@media screen and (max-width: 76.1875em) {\n .md-header__button.md-logo {\n display: none;\n }\n}\n.md-header__button.md-logo img,\n.md-header__button.md-logo svg {\n display: block;\n width: 1.2rem;\n height: 1.2rem;\n fill: currentColor;\n}\n@media screen and (min-width: 60em) {\n .md-header__button[for=__search] {\n display: none;\n }\n}\n.no-js .md-header__button[for=__search] {\n display: none;\n}\n[dir=rtl] .md-header__button[for=__search] svg {\n transform: scaleX(-1);\n}\n@media screen and (min-width: 76.25em) {\n .md-header__button[for=__drawer] {\n display: none;\n }\n}\n.md-header__topic {\n position: absolute;\n display: flex;\n max-width: 100%;\n transition: transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1), opacity 150ms;\n}\n.md-header__topic + .md-header__topic {\n z-index: -1;\n transform: translateX(1.25rem);\n opacity: 0;\n transition: transform 400ms cubic-bezier(1, 0.7, 0.1, 0.1), opacity 150ms;\n pointer-events: none;\n}\n[dir=rtl] .md-header__topic + .md-header__topic {\n transform: translateX(-1.25rem);\n}\n.md-header__title {\n flex-grow: 1;\n height: 2.4rem;\n margin-right: 0.4rem;\n margin-left: 1rem;\n font-size: 0.9rem;\n line-height: 2.4rem;\n}\n.md-header__title[data-md-state=active] .md-header__topic {\n z-index: -1;\n transform: translateX(-1.25rem);\n opacity: 0;\n transition: transform 400ms cubic-bezier(1, 0.7, 0.1, 0.1), opacity 150ms;\n pointer-events: none;\n}\n[dir=rtl] .md-header__title[data-md-state=active] .md-header__topic {\n transform: translateX(1.25rem);\n}\n.md-header__title[data-md-state=active] .md-header__topic + .md-header__topic {\n z-index: 0;\n transform: translateX(0);\n opacity: 1;\n transition: transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1), opacity 150ms;\n pointer-events: initial;\n}\n.md-header__title > .md-header__ellipsis {\n position: relative;\n width: 100%;\n height: 100%;\n}\n.md-header__option {\n display: flex;\n flex-shrink: 0;\n max-width: 100%;\n white-space: nowrap;\n transition: max-width 0ms 250ms, opacity 250ms 250ms;\n}\n[data-md-toggle=search]:checked ~ .md-header .md-header__option {\n max-width: 0;\n opacity: 0;\n transition: max-width 0ms, opacity 0ms;\n}\n.md-header__source {\n display: none;\n}\n@media screen and (min-width: 60em) {\n .md-header__source {\n display: block;\n width: 11.7rem;\n max-width: 11.7rem;\n margin-left: 1rem;\n }\n [dir=rtl] .md-header__source {\n margin-right: 1rem;\n margin-left: initial;\n }\n}\n@media screen and (min-width: 76.25em) {\n .md-header__source {\n margin-left: 1.4rem;\n }\n [dir=rtl] .md-header__source {\n margin-right: 1.4rem;\n }\n}\n\n.md-footer {\n color: var(--md-footer-fg-color);\n background-color: var(--md-footer-bg-color);\n}\n@media print {\n .md-footer {\n display: none;\n }\n}\n.md-footer__inner {\n padding: 0.2rem;\n overflow: auto;\n}\n.md-footer__link {\n display: flex;\n padding-top: 1.4rem;\n padding-bottom: 0.4rem;\n outline-color: var(--md-accent-fg-color);\n transition: opacity 250ms;\n}\n@media screen and (min-width: 45em) {\n .md-footer__link {\n width: 50%;\n }\n}\n.md-footer__link:focus, .md-footer__link:hover {\n opacity: 0.7;\n}\n.md-footer__link--prev {\n float: left;\n}\n@media screen and (max-width: 44.9375em) {\n .md-footer__link--prev {\n width: 25%;\n }\n .md-footer__link--prev .md-footer__title {\n display: none;\n }\n}\n[dir=rtl] .md-footer__link--prev {\n float: right;\n}\n[dir=rtl] .md-footer__link--prev svg {\n transform: scaleX(-1);\n}\n.md-footer__link--next {\n float: right;\n text-align: right;\n}\n@media screen and (max-width: 44.9375em) {\n .md-footer__link--next {\n width: 75%;\n }\n}\n[dir=rtl] .md-footer__link--next {\n float: left;\n text-align: left;\n}\n[dir=rtl] .md-footer__link--next svg {\n transform: scaleX(-1);\n}\n.md-footer__title {\n position: relative;\n flex-grow: 1;\n max-width: calc(100% - 2.4rem);\n padding: 0 1rem;\n font-size: 0.9rem;\n line-height: 2.4rem;\n}\n.md-footer__button {\n margin: 0.2rem;\n padding: 0.4rem;\n}\n.md-footer__direction {\n position: absolute;\n right: 0;\n left: 0;\n margin-top: -1rem;\n padding: 0 1rem;\n font-size: 0.64rem;\n opacity: 0.7;\n}\n\n.md-footer-meta {\n background-color: var(--md-footer-bg-color--dark);\n}\n.md-footer-meta__inner {\n display: flex;\n flex-wrap: wrap;\n justify-content: space-between;\n padding: 0.2rem;\n}\nhtml .md-footer-meta.md-typeset a {\n color: var(--md-footer-fg-color--light);\n}\nhtml .md-footer-meta.md-typeset a:focus, html .md-footer-meta.md-typeset a:hover {\n color: var(--md-footer-fg-color);\n}\n\n.md-footer-copyright {\n width: 100%;\n margin: auto 0.6rem;\n padding: 0.4rem 0;\n color: var(--md-footer-fg-color--lighter);\n font-size: 0.64rem;\n}\n@media screen and (min-width: 45em) {\n .md-footer-copyright {\n width: auto;\n }\n}\n.md-footer-copyright__highlight {\n color: var(--md-footer-fg-color--light);\n}\n\n.md-footer-social {\n margin: 0 0.4rem;\n padding: 0.2rem 0 0.6rem;\n}\n@media screen and (min-width: 45em) {\n .md-footer-social {\n padding: 0.6rem 0;\n }\n}\n.md-footer-social__link {\n display: inline-block;\n width: 1.6rem;\n height: 1.6rem;\n text-align: center;\n}\n.md-footer-social__link::before {\n line-height: 1.9;\n}\n.md-footer-social__link svg {\n max-height: 0.8rem;\n vertical-align: -25%;\n fill: currentColor;\n}\n\n:root {\n --md-nav-icon--prev: svg-load(\"material/arrow-left.svg\");\n --md-nav-icon--next: svg-load(\"material/chevron-right.svg\");\n --md-toc-icon: svg-load(\"material/table-of-contents.svg\");\n}\n\n.md-nav {\n font-size: 0.7rem;\n line-height: 1.3;\n}\n.md-nav__title {\n display: block;\n padding: 0 0.6rem;\n overflow: hidden;\n font-weight: 700;\n text-overflow: ellipsis;\n}\n.md-nav__title .md-nav__button {\n display: none;\n}\n.md-nav__title .md-nav__button img {\n width: auto;\n height: 100%;\n}\n.md-nav__title .md-nav__button.md-logo img,\n.md-nav__title .md-nav__button.md-logo svg {\n display: block;\n width: 2.4rem;\n height: 2.4rem;\n fill: currentColor;\n}\n.md-nav__list {\n margin: 0;\n padding: 0;\n list-style: none;\n}\n.md-nav__item {\n padding: 0 0.6rem;\n}\n.md-nav__item .md-nav__item {\n padding-right: 0;\n}\n[dir=rtl] .md-nav__item .md-nav__item {\n padding-right: 0.6rem;\n padding-left: 0;\n}\n.md-nav__link {\n display: block;\n margin-top: 0.625em;\n overflow: hidden;\n text-overflow: ellipsis;\n cursor: pointer;\n transition: color 125ms;\n scroll-snap-align: start;\n}\n.md-nav__link[data-md-state=blur] {\n color: var(--md-default-fg-color--light);\n}\n.md-nav__item .md-nav__link--active {\n color: var(--md-typeset-a-color);\n}\n.md-nav__item--nested > .md-nav__link {\n color: inherit;\n}\n.md-nav__link:focus, .md-nav__link:hover {\n color: var(--md-accent-fg-color);\n}\n.md-nav__link.focus-visible {\n outline-color: var(--md-accent-fg-color);\n outline-offset: 0.2rem;\n}\n.md-nav--primary .md-nav__link[for=__toc] {\n display: none;\n}\n.md-nav--primary .md-nav__link[for=__toc] .md-icon::after {\n display: block;\n width: 100%;\n height: 100%;\n mask-image: var(--md-toc-icon);\n background-color: currentColor;\n}\n.md-nav--primary .md-nav__link[for=__toc] ~ .md-nav {\n display: none;\n}\n.md-nav__source {\n display: none;\n}\n@media screen and (max-width: 76.1875em) {\n .md-nav--primary, .md-nav--primary .md-nav {\n position: absolute;\n top: 0;\n right: 0;\n left: 0;\n z-index: 1;\n display: flex;\n flex-direction: column;\n height: 100%;\n background-color: var(--md-default-bg-color);\n }\n .md-nav--primary .md-nav__title,\n.md-nav--primary .md-nav__item {\n font-size: 0.8rem;\n line-height: 1.5;\n }\n .md-nav--primary .md-nav__title {\n position: relative;\n height: 5.6rem;\n padding: 3rem 0.8rem 0.2rem;\n color: var(--md-default-fg-color--light);\n font-weight: 400;\n line-height: 2.4rem;\n white-space: nowrap;\n background-color: var(--md-default-fg-color--lightest);\n cursor: pointer;\n }\n .md-nav--primary .md-nav__title .md-nav__icon {\n position: absolute;\n top: 0.4rem;\n left: 0.4rem;\n display: block;\n width: 1.2rem;\n height: 1.2rem;\n margin: 0.2rem;\n }\n [dir=rtl] .md-nav--primary .md-nav__title .md-nav__icon {\n right: 0.4rem;\n left: initial;\n }\n .md-nav--primary .md-nav__title .md-nav__icon::after {\n display: block;\n width: 100%;\n height: 100%;\n background-color: currentColor;\n mask-image: var(--md-nav-icon--prev);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n .md-nav--primary .md-nav__title ~ .md-nav__list {\n overflow-y: auto;\n background-color: var(--md-default-bg-color);\n box-shadow: 0 0.05rem 0 var(--md-default-fg-color--lightest) inset;\n scroll-snap-type: y mandatory;\n touch-action: pan-y;\n }\n .md-nav--primary .md-nav__title ~ .md-nav__list > :first-child {\n border-top: 0;\n }\n .md-nav--primary .md-nav__title[for=__drawer] {\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color);\n }\n .md-nav--primary .md-nav__title .md-logo {\n position: absolute;\n top: 0.2rem;\n left: 0.2rem;\n display: block;\n margin: 0.2rem;\n padding: 0.4rem;\n }\n [dir=rtl] .md-nav--primary .md-nav__title .md-logo {\n right: 0.2rem;\n left: initial;\n }\n .md-nav--primary .md-nav__list {\n flex: 1;\n }\n .md-nav--primary .md-nav__item {\n padding: 0;\n border-top: 0.05rem solid var(--md-default-fg-color--lightest);\n }\n .md-nav--primary .md-nav__item--nested > .md-nav__link {\n padding-right: 2.4rem;\n }\n [dir=rtl] .md-nav--primary .md-nav__item--nested > .md-nav__link {\n padding-right: 0.8rem;\n padding-left: 2.4rem;\n }\n .md-nav--primary .md-nav__item--active > .md-nav__link {\n color: var(--md-typeset-a-color);\n }\n .md-nav--primary .md-nav__item--active > .md-nav__link:focus, .md-nav--primary .md-nav__item--active > .md-nav__link:hover {\n color: var(--md-accent-fg-color);\n }\n .md-nav--primary .md-nav__link {\n position: relative;\n margin-top: 0;\n padding: 0.6rem 0.8rem;\n }\n .md-nav--primary .md-nav__link .md-nav__icon {\n position: absolute;\n top: 50%;\n right: 0.6rem;\n width: 1.2rem;\n height: 1.2rem;\n margin-top: -0.6rem;\n color: inherit;\n font-size: 1.2rem;\n }\n [dir=rtl] .md-nav--primary .md-nav__link .md-nav__icon {\n right: initial;\n left: 0.6rem;\n }\n .md-nav--primary .md-nav__link .md-nav__icon::after {\n display: block;\n width: 100%;\n height: 100%;\n background-color: currentColor;\n mask-image: var(--md-nav-icon--next);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n [dir=rtl] .md-nav--primary .md-nav__icon::after {\n transform: scale(-1);\n }\n .md-nav--primary .md-nav--secondary .md-nav__link {\n position: static;\n }\n .md-nav--primary .md-nav--secondary .md-nav {\n position: static;\n background-color: transparent;\n }\n .md-nav--primary .md-nav--secondary .md-nav .md-nav__link {\n padding-left: 1.4rem;\n }\n [dir=rtl] .md-nav--primary .md-nav--secondary .md-nav .md-nav__link {\n padding-right: 1.4rem;\n padding-left: initial;\n }\n .md-nav--primary .md-nav--secondary .md-nav .md-nav .md-nav__link {\n padding-left: 2rem;\n }\n [dir=rtl] .md-nav--primary .md-nav--secondary .md-nav .md-nav .md-nav__link {\n padding-right: 2rem;\n padding-left: initial;\n }\n .md-nav--primary .md-nav--secondary .md-nav .md-nav .md-nav .md-nav__link {\n padding-left: 2.6rem;\n }\n [dir=rtl] .md-nav--primary .md-nav--secondary .md-nav .md-nav .md-nav .md-nav__link {\n padding-right: 2.6rem;\n padding-left: initial;\n }\n .md-nav--primary .md-nav--secondary .md-nav .md-nav .md-nav .md-nav .md-nav__link {\n padding-left: 3.2rem;\n }\n [dir=rtl] .md-nav--primary .md-nav--secondary .md-nav .md-nav .md-nav .md-nav .md-nav__link {\n padding-right: 3.2rem;\n padding-left: initial;\n }\n .md-nav--secondary {\n background-color: transparent;\n }\n .md-nav__toggle ~ .md-nav {\n display: flex;\n transform: translateX(100%);\n opacity: 0;\n transition: transform 250ms cubic-bezier(0.8, 0, 0.6, 1), opacity 125ms 50ms;\n }\n [dir=rtl] .md-nav__toggle ~ .md-nav {\n transform: translateX(-100%);\n }\n .md-nav__toggle:checked ~ .md-nav {\n transform: translateX(0);\n opacity: 1;\n transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1), opacity 125ms 125ms;\n }\n .md-nav__toggle:checked ~ .md-nav > .md-nav__list {\n backface-visibility: hidden;\n }\n}\n@media screen and (max-width: 59.9375em) {\n .md-nav--primary .md-nav__link[for=__toc] {\n display: block;\n padding-right: 2.4rem;\n }\n [dir=rtl] .md-nav--primary .md-nav__link[for=__toc] {\n padding-right: 0.8rem;\n padding-left: 2.4rem;\n }\n .md-nav--primary .md-nav__link[for=__toc] .md-icon::after {\n content: \"\";\n }\n .md-nav--primary .md-nav__link[for=__toc] + .md-nav__link {\n display: none;\n }\n .md-nav--primary .md-nav__link[for=__toc] ~ .md-nav {\n display: flex;\n }\n .md-nav__source {\n display: block;\n padding: 0 0.2rem;\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color--dark);\n }\n}\n@media screen and (min-width: 60em) and (max-width: 76.1875em) {\n .md-nav--integrated .md-nav__link[for=__toc] {\n display: block;\n padding-right: 2.4rem;\n scroll-snap-align: initial;\n }\n [dir=rtl] .md-nav--integrated .md-nav__link[for=__toc] {\n padding-right: 0.8rem;\n padding-left: 2.4rem;\n }\n .md-nav--integrated .md-nav__link[for=__toc] .md-icon::after {\n content: \"\";\n }\n .md-nav--integrated .md-nav__link[for=__toc] + .md-nav__link {\n display: none;\n }\n .md-nav--integrated .md-nav__link[for=__toc] ~ .md-nav {\n display: flex;\n }\n}\n@media screen and (min-width: 60em) {\n .md-nav--secondary .md-nav__title[for=__toc] {\n scroll-snap-align: start;\n }\n .md-nav--secondary .md-nav__title .md-nav__icon {\n display: none;\n }\n}\n@media screen and (min-width: 76.25em) {\n .md-nav {\n transition: max-height 250ms cubic-bezier(0.86, 0, 0.07, 1);\n }\n .md-nav--primary .md-nav__title[for=__drawer] {\n scroll-snap-align: start;\n }\n .md-nav--primary .md-nav__title .md-nav__icon {\n display: none;\n }\n .md-nav__toggle ~ .md-nav {\n display: none;\n }\n .md-nav__toggle:checked ~ .md-nav, .md-nav__toggle:indeterminate ~ .md-nav {\n display: block;\n }\n .md-nav__item--nested > .md-nav > .md-nav__title {\n display: none;\n }\n .md-nav__item--section {\n display: block;\n margin: 1.25em 0;\n }\n .md-nav__item--section:last-child {\n margin-bottom: 0;\n }\n .md-nav__item--section > .md-nav__link {\n display: none;\n }\n .md-nav__item--section > .md-nav {\n display: block;\n }\n .md-nav__item--section > .md-nav > .md-nav__title {\n display: block;\n padding: 0;\n pointer-events: none;\n scroll-snap-align: start;\n }\n .md-nav__item--section > .md-nav > .md-nav__list > .md-nav__item {\n padding: 0;\n }\n .md-nav__icon {\n float: right;\n width: 0.9rem;\n height: 0.9rem;\n transition: transform 250ms;\n }\n [dir=rtl] .md-nav__icon {\n float: left;\n transform: rotate(180deg);\n }\n .md-nav__icon::after {\n display: inline-block;\n width: 100%;\n height: 100%;\n vertical-align: -0.1rem;\n background-color: currentColor;\n mask-image: var(--md-nav-icon--next);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n .md-nav__item--nested .md-nav__toggle:checked ~ .md-nav__link .md-nav__icon, .md-nav__item--nested .md-nav__toggle:indeterminate ~ .md-nav__link .md-nav__icon {\n transform: rotate(90deg);\n }\n .md-nav--lifted > .md-nav__list > .md-nav__item--nested,\n.md-nav--lifted > .md-nav__title {\n display: none;\n }\n .md-nav--lifted > .md-nav__list > .md-nav__item {\n display: none;\n }\n .md-nav--lifted > .md-nav__list > .md-nav__item--active {\n display: block;\n padding: 0;\n }\n .md-nav--lifted > .md-nav__list > .md-nav__item--active > .md-nav__link {\n display: none;\n }\n .md-nav--lifted > .md-nav__list > .md-nav__item--active > .md-nav > .md-nav__title {\n display: block;\n padding: 0 0.6rem;\n pointer-events: none;\n scroll-snap-align: start;\n }\n .md-nav--lifted .md-nav[data-md-level=\"1\"] {\n display: block;\n }\n .md-nav--lifted .md-nav[data-md-level=\"1\"] > .md-nav__list > .md-nav__item {\n padding-right: 0.6rem;\n }\n .md-nav--integrated .md-nav__link[for=__toc] ~ .md-nav {\n display: block;\n margin-bottom: 1.25em;\n border-left: 0.05rem solid var(--md-primary-fg-color);\n }\n .md-nav--integrated .md-nav__link[for=__toc] ~ .md-nav > .md-nav__title {\n display: none;\n }\n}\n\n:root {\n --md-search-result-icon: svg-load(\"material/file-search-outline.svg\");\n}\n\n.md-search {\n position: relative;\n}\n@media screen and (min-width: 60em) {\n .md-search {\n padding: 0.2rem 0;\n }\n}\n.no-js .md-search {\n display: none;\n}\n.md-search__overlay {\n z-index: 1;\n opacity: 0;\n}\n@media screen and (max-width: 59.9375em) {\n .md-search__overlay {\n position: absolute;\n top: 0.2rem;\n left: -2.2rem;\n width: 2rem;\n height: 2rem;\n overflow: hidden;\n background-color: var(--md-default-bg-color);\n border-radius: 1rem;\n transform-origin: center;\n transition: transform 300ms 100ms, opacity 200ms 200ms;\n pointer-events: none;\n }\n [dir=rtl] .md-search__overlay {\n right: -2.2rem;\n left: initial;\n }\n [data-md-toggle=search]:checked ~ .md-header .md-search__overlay {\n opacity: 1;\n transition: transform 400ms, opacity 100ms;\n }\n}\n@media screen and (min-width: 60em) {\n .md-search__overlay {\n position: fixed;\n top: 0;\n left: 0;\n width: 0;\n height: 0;\n background-color: rgba(0, 0, 0, 0.54);\n cursor: pointer;\n transition: width 0ms 250ms, height 0ms 250ms, opacity 250ms;\n }\n [dir=rtl] .md-search__overlay {\n right: 0;\n left: initial;\n }\n [data-md-toggle=search]:checked ~ .md-header .md-search__overlay {\n width: 100%;\n height: 200vh;\n opacity: 1;\n transition: width 0ms, height 0ms, opacity 250ms;\n }\n}\n@media screen and (max-width: 29.9375em) {\n [data-md-toggle=search]:checked ~ .md-header .md-search__overlay {\n transform: scale(45);\n }\n}\n@media screen and (min-width: 30em) and (max-width: 44.9375em) {\n [data-md-toggle=search]:checked ~ .md-header .md-search__overlay {\n transform: scale(60);\n }\n}\n@media screen and (min-width: 45em) and (max-width: 59.9375em) {\n [data-md-toggle=search]:checked ~ .md-header .md-search__overlay {\n transform: scale(75);\n }\n}\n.md-search__inner {\n backface-visibility: hidden;\n}\n@media screen and (max-width: 59.9375em) {\n .md-search__inner {\n position: fixed;\n top: 0;\n left: 100%;\n z-index: 2;\n width: 100%;\n height: 100%;\n transform: translateX(5%);\n opacity: 0;\n transition: right 0ms 300ms, left 0ms 300ms, transform 150ms 150ms cubic-bezier(0.4, 0, 0.2, 1), opacity 150ms 150ms;\n }\n [data-md-toggle=search]:checked ~ .md-header .md-search__inner {\n left: 0;\n transform: translateX(0);\n opacity: 1;\n transition: right 0ms 0ms, left 0ms 0ms, transform 150ms 150ms cubic-bezier(0.1, 0.7, 0.1, 1), opacity 150ms 150ms;\n }\n [dir=rtl] [data-md-toggle=search]:checked ~ .md-header .md-search__inner {\n right: 0;\n left: initial;\n }\n html [dir=rtl] .md-search__inner {\n right: 100%;\n left: initial;\n transform: translateX(-5%);\n }\n}\n@media screen and (min-width: 60em) {\n .md-search__inner {\n position: relative;\n float: right;\n width: 11.7rem;\n padding: 0.1rem 0;\n transition: width 250ms cubic-bezier(0.1, 0.7, 0.1, 1);\n }\n [dir=rtl] .md-search__inner {\n float: left;\n }\n}\n@media screen and (min-width: 60em) and (max-width: 76.1875em) {\n [data-md-toggle=search]:checked ~ .md-header .md-search__inner {\n width: 23.4rem;\n }\n}\n@media screen and (min-width: 76.25em) {\n [data-md-toggle=search]:checked ~ .md-header .md-search__inner {\n width: 34.4rem;\n }\n}\n.md-search__form {\n position: relative;\n}\n@media screen and (min-width: 60em) {\n .md-search__form {\n border-radius: 0.1rem;\n }\n}\n.md-search__input {\n position: relative;\n z-index: 2;\n padding: 0 2.2rem 0 3.6rem;\n text-overflow: ellipsis;\n background-color: var(--md-default-bg-color);\n box-shadow: 0 0 0.6rem transparent;\n transition: color 250ms, background-color 250ms, box-shadow 250ms;\n}\n[dir=rtl] .md-search__input {\n padding: 0 3.6rem 0 2.2rem;\n}\n.md-search__input::placeholder {\n transition: color 250ms;\n}\n.md-search__input ~ .md-search__icon, .md-search__input::placeholder {\n color: var(--md-default-fg-color--light);\n}\n.md-search__input::-ms-clear {\n display: none;\n}\n[data-md-toggle=search]:checked ~ .md-header .md-search__input {\n box-shadow: 0 0 0.6rem rgba(0, 0, 0, 0.07);\n}\n@media screen and (max-width: 59.9375em) {\n .md-search__input {\n width: 100%;\n height: 2.4rem;\n font-size: 0.9rem;\n }\n}\n@media screen and (min-width: 60em) {\n .md-search__input {\n width: 100%;\n height: 1.8rem;\n padding-left: 2.2rem;\n color: inherit;\n font-size: 0.8rem;\n background-color: rgba(0, 0, 0, 0.26);\n border-radius: 0.1rem;\n }\n [dir=rtl] .md-search__input {\n padding-right: 2.2rem;\n }\n .md-search__input + .md-search__icon {\n color: var(--md-primary-bg-color);\n }\n .md-search__input::placeholder {\n color: var(--md-primary-bg-color--light);\n }\n .md-search__input:hover {\n background-color: rgba(255, 255, 255, 0.12);\n }\n [data-md-toggle=search]:checked ~ .md-header .md-search__input {\n color: var(--md-default-fg-color);\n text-overflow: clip;\n background-color: var(--md-default-bg-color);\n border-radius: 0.1rem 0.1rem 0 0;\n }\n [data-md-toggle=search]:checked ~ .md-header .md-search__input + .md-search__icon, [data-md-toggle=search]:checked ~ .md-header .md-search__input::placeholder {\n color: var(--md-default-fg-color--light);\n }\n}\n.md-search__icon {\n position: absolute;\n z-index: 2;\n width: 1.2rem;\n height: 1.2rem;\n cursor: pointer;\n transition: color 250ms, opacity 250ms;\n}\n.md-search__icon:hover {\n opacity: 0.7;\n}\n.md-search__icon[for=__search] {\n top: 0.3rem;\n left: 0.5rem;\n}\n[dir=rtl] .md-search__icon[for=__search] {\n right: 0.5rem;\n left: initial;\n}\n[dir=rtl] .md-search__icon[for=__search] svg {\n transform: scaleX(-1);\n}\n@media screen and (max-width: 59.9375em) {\n .md-search__icon[for=__search] {\n top: 0.6rem;\n left: 0.8rem;\n }\n [dir=rtl] .md-search__icon[for=__search] {\n right: 0.8rem;\n left: initial;\n }\n .md-search__icon[for=__search] svg:first-child {\n display: none;\n }\n}\n@media screen and (min-width: 60em) {\n .md-search__icon[for=__search] {\n pointer-events: none;\n }\n .md-search__icon[for=__search] svg:last-child {\n display: none;\n }\n}\n.md-search__icon[type=reset] {\n top: 0.3rem;\n right: 0.5rem;\n transform: scale(0.75);\n opacity: 0;\n transition: transform 150ms cubic-bezier(0.1, 0.7, 0.1, 1), opacity 150ms;\n pointer-events: none;\n}\n[dir=rtl] .md-search__icon[type=reset] {\n right: initial;\n left: 0.5rem;\n}\n@media screen and (max-width: 59.9375em) {\n .md-search__icon[type=reset] {\n top: 0.6rem;\n right: 0.8rem;\n }\n [dir=rtl] .md-search__icon[type=reset] {\n right: initial;\n left: 0.8rem;\n }\n}\n[data-md-toggle=search]:checked ~ .md-header .md-search__input:valid ~ .md-search__icon[type=reset] {\n transform: scale(1);\n opacity: 1;\n pointer-events: initial;\n}\n[data-md-toggle=search]:checked ~ .md-header .md-search__input:valid ~ .md-search__icon[type=reset]:hover {\n opacity: 0.7;\n}\n.md-search__output {\n position: absolute;\n z-index: 1;\n width: 100%;\n overflow: hidden;\n border-radius: 0 0 0.1rem 0.1rem;\n}\n@media screen and (max-width: 59.9375em) {\n .md-search__output {\n top: 2.4rem;\n bottom: 0;\n }\n}\n@media screen and (min-width: 60em) {\n .md-search__output {\n top: 1.9rem;\n opacity: 0;\n transition: opacity 400ms;\n }\n [data-md-toggle=search]:checked ~ .md-header .md-search__output {\n box-shadow: 0 6px 10px 0 rgba(0, 0, 0, 0.14), 0 1px 18px 0 rgba(0, 0, 0, 0.12), 0 3px 5px -1px rgba(0, 0, 0, 0.4);\n opacity: 1;\n }\n}\n.md-search__scrollwrap {\n height: 100%;\n overflow-y: auto;\n background-color: var(--md-default-bg-color);\n backface-visibility: hidden;\n touch-action: pan-y;\n}\n@media (max-resolution: 1dppx) {\n .md-search__scrollwrap {\n transform: translateZ(0);\n }\n}\n@media screen and (min-width: 60em) and (max-width: 76.1875em) {\n .md-search__scrollwrap {\n width: 23.4rem;\n }\n}\n@media screen and (min-width: 76.25em) {\n .md-search__scrollwrap {\n width: 34.4rem;\n }\n}\n@media screen and (min-width: 60em) {\n .md-search__scrollwrap {\n max-height: 0;\n scrollbar-width: thin;\n scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n }\n [data-md-toggle=search]:checked ~ .md-header .md-search__scrollwrap {\n max-height: 75vh;\n }\n .md-search__scrollwrap:hover {\n scrollbar-color: var(--md-accent-fg-color) transparent;\n }\n .md-search__scrollwrap::-webkit-scrollbar {\n width: 0.2rem;\n height: 0.2rem;\n }\n .md-search__scrollwrap::-webkit-scrollbar-thumb {\n background-color: var(--md-default-fg-color--lighter);\n }\n .md-search__scrollwrap::-webkit-scrollbar-thumb:hover {\n background-color: var(--md-accent-fg-color);\n }\n}\n\n.md-search-result {\n color: var(--md-default-fg-color);\n word-break: break-word;\n}\n.md-search-result__meta {\n padding: 0 0.8rem;\n color: var(--md-default-fg-color--light);\n font-size: 0.64rem;\n line-height: 1.8rem;\n background-color: var(--md-default-fg-color--lightest);\n scroll-snap-align: start;\n}\n@media screen and (min-width: 60em) {\n .md-search-result__meta {\n padding-left: 2.2rem;\n }\n [dir=rtl] .md-search-result__meta {\n padding-right: 2.2rem;\n padding-left: initial;\n }\n}\n.md-search-result__list {\n margin: 0;\n padding: 0;\n list-style: none;\n}\n.md-search-result__item {\n box-shadow: 0 -0.05rem 0 var(--md-default-fg-color--lightest);\n}\n.md-search-result__item:first-child {\n box-shadow: none;\n}\n.md-search-result__link {\n display: block;\n outline: none;\n transition: background-color 250ms;\n scroll-snap-align: start;\n}\n.md-search-result__link:focus, .md-search-result__link:hover {\n background-color: var(--md-accent-fg-color--transparent);\n}\n.md-search-result__link:last-child p:last-child {\n margin-bottom: 0.6rem;\n}\n.md-search-result__more summary {\n display: block;\n padding: 0.75em 0.8rem;\n color: var(--md-typeset-a-color);\n font-size: 0.64rem;\n outline: none;\n cursor: pointer;\n transition: color 250ms, background-color 250ms;\n scroll-snap-align: start;\n}\n@media screen and (min-width: 60em) {\n .md-search-result__more summary {\n padding-left: 2.2rem;\n }\n [dir=rtl] .md-search-result__more summary {\n padding-right: 2.2rem;\n padding-left: 0.8rem;\n }\n}\n.md-search-result__more summary:focus, .md-search-result__more summary:hover {\n color: var(--md-accent-fg-color);\n background-color: var(--md-accent-fg-color--transparent);\n}\n.md-search-result__more summary::marker, .md-search-result__more summary::-webkit-details-marker {\n display: none;\n}\n.md-search-result__more summary ~ * > * {\n opacity: 0.65;\n}\n.md-search-result__article {\n position: relative;\n padding: 0 0.8rem;\n overflow: hidden;\n}\n@media screen and (min-width: 60em) {\n .md-search-result__article {\n padding-left: 2.2rem;\n }\n [dir=rtl] .md-search-result__article {\n padding-right: 2.2rem;\n padding-left: 0.8rem;\n }\n}\n.md-search-result__article--document .md-search-result__title {\n margin: 0.55rem 0;\n font-weight: 400;\n font-size: 0.8rem;\n line-height: 1.4;\n}\n.md-search-result__icon {\n position: absolute;\n left: 0;\n width: 1.2rem;\n height: 1.2rem;\n margin: 0.5rem;\n color: var(--md-default-fg-color--light);\n}\n@media screen and (max-width: 59.9375em) {\n .md-search-result__icon {\n display: none;\n }\n}\n.md-search-result__icon::after {\n display: inline-block;\n width: 100%;\n height: 100%;\n background-color: currentColor;\n mask-image: var(--md-search-result-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n}\n[dir=rtl] .md-search-result__icon {\n right: 0;\n left: initial;\n}\n[dir=rtl] .md-search-result__icon::after {\n transform: scaleX(-1);\n}\n.md-search-result__title {\n margin: 0.5em 0;\n font-weight: 700;\n font-size: 0.64rem;\n line-height: 1.6;\n}\n.md-search-result__teaser {\n display: -webkit-box;\n max-height: 2rem;\n margin: 0.5em 0;\n overflow: hidden;\n color: var(--md-default-fg-color--light);\n font-size: 0.64rem;\n line-height: 1.6;\n text-overflow: ellipsis;\n -webkit-box-orient: vertical;\n -webkit-line-clamp: 2;\n}\n@media screen and (max-width: 44.9375em) {\n .md-search-result__teaser {\n max-height: 3rem;\n -webkit-line-clamp: 3;\n }\n}\n@media screen and (min-width: 60em) and (max-width: 76.1875em) {\n .md-search-result__teaser {\n max-height: 3rem;\n -webkit-line-clamp: 3;\n }\n}\n.md-search-result__teaser mark {\n text-decoration: underline;\n background-color: transparent;\n}\n.md-search-result__terms {\n margin: 0.5em 0;\n font-size: 0.64rem;\n font-style: italic;\n}\n.md-search-result mark {\n color: var(--md-accent-fg-color);\n background-color: transparent;\n}\n\n.md-select {\n position: relative;\n z-index: 1;\n}\n.md-select__inner {\n position: absolute;\n top: calc(100% - 0.2rem);\n left: 50%;\n max-height: 0;\n margin-top: 0.2rem;\n color: var(--md-default-fg-color);\n background-color: var(--md-default-bg-color);\n border-radius: 0.1rem;\n box-shadow: 0 0.2rem 0.5rem rgba(0, 0, 0, 0.1), 0 0 0.05rem rgba(0, 0, 0, 0.25);\n transform: translate3d(-50%, 0.3rem, 0);\n opacity: 0;\n transition: transform 250ms 375ms, opacity 250ms 250ms, max-height 0ms 500ms;\n}\n.md-select:focus-within .md-select__inner, .md-select:hover .md-select__inner {\n max-height: 10rem;\n transform: translate3d(-50%, 0, 0);\n opacity: 1;\n transition: transform 250ms cubic-bezier(0.1, 0.7, 0.1, 1), opacity 250ms, max-height 0ms;\n}\n.md-select__inner::after {\n position: absolute;\n top: 0;\n left: 50%;\n width: 0;\n height: 0;\n margin-top: -0.2rem;\n margin-left: -0.2rem;\n border: 0.2rem solid transparent;\n border-top: 0;\n border-bottom-color: var(--md-default-bg-color);\n content: \"\";\n}\n.md-select__list {\n max-height: inherit;\n margin: 0;\n padding: 0;\n overflow: auto;\n font-size: 0.8rem;\n list-style-type: none;\n border-radius: 0.1rem;\n}\n.md-select__item {\n line-height: 1.8rem;\n}\n.md-select__link {\n display: block;\n width: 100%;\n padding-right: 1.2rem;\n padding-left: 0.6rem;\n outline: none;\n cursor: pointer;\n transition: background-color 250ms, color 250ms;\n scroll-snap-align: start;\n}\n[dir=rtl] .md-select__link {\n padding-right: 0.6rem;\n padding-left: 1.2rem;\n}\n.md-select__link:focus, .md-select__link:hover {\n color: var(--md-accent-fg-color);\n}\n.md-select__link:focus {\n background-color: var(--md-default-fg-color--lightest);\n}\n\n.md-sidebar {\n position: sticky;\n top: 2.4rem;\n flex-shrink: 0;\n align-self: flex-start;\n width: 12.1rem;\n padding: 1.2rem 0;\n}\n@media print {\n .md-sidebar {\n display: none;\n }\n}\n@media screen and (max-width: 76.1875em) {\n .md-sidebar--primary {\n position: fixed;\n top: 0;\n left: -12.1rem;\n z-index: 3;\n display: block;\n width: 12.1rem;\n height: 100%;\n background-color: var(--md-default-bg-color);\n transform: translateX(0);\n transition: transform 250ms cubic-bezier(0.4, 0, 0.2, 1), box-shadow 250ms;\n }\n [dir=rtl] .md-sidebar--primary {\n right: -12.1rem;\n left: initial;\n }\n [data-md-toggle=drawer]:checked ~ .md-container .md-sidebar--primary {\n box-shadow: 0 8px 10px 1px rgba(0, 0, 0, 0.14), 0 3px 14px 2px rgba(0, 0, 0, 0.12), 0 5px 5px -3px rgba(0, 0, 0, 0.4);\n transform: translateX(12.1rem);\n }\n [dir=rtl] [data-md-toggle=drawer]:checked ~ .md-container .md-sidebar--primary {\n transform: translateX(-12.1rem);\n }\n .md-sidebar--primary .md-sidebar__scrollwrap {\n position: absolute;\n top: 0;\n right: 0;\n bottom: 0;\n left: 0;\n margin: 0;\n scroll-snap-type: none;\n overflow: hidden;\n }\n}\n@media screen and (min-width: 76.25em) {\n .md-sidebar {\n height: 0;\n }\n .no-js .md-sidebar {\n height: auto;\n }\n}\n.md-sidebar--secondary {\n display: none;\n order: 2;\n}\n@media screen and (min-width: 60em) {\n .md-sidebar--secondary {\n height: 0;\n }\n .no-js .md-sidebar--secondary {\n height: auto;\n }\n .md-sidebar--secondary:not([hidden]) {\n display: block;\n }\n .md-sidebar--secondary .md-sidebar__scrollwrap {\n touch-action: pan-y;\n }\n}\n.md-sidebar__scrollwrap {\n margin: 0 0.2rem;\n overflow-y: auto;\n backface-visibility: hidden;\n scrollbar-width: thin;\n scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n}\n.md-sidebar__scrollwrap:hover {\n scrollbar-color: var(--md-accent-fg-color) transparent;\n}\n.md-sidebar__scrollwrap::-webkit-scrollbar {\n width: 0.2rem;\n height: 0.2rem;\n}\n.md-sidebar__scrollwrap::-webkit-scrollbar-thumb {\n background-color: var(--md-default-fg-color--lighter);\n}\n.md-sidebar__scrollwrap::-webkit-scrollbar-thumb:hover {\n background-color: var(--md-accent-fg-color);\n}\n\n@media screen and (max-width: 76.1875em) {\n .md-overlay {\n position: fixed;\n top: 0;\n z-index: 3;\n width: 0;\n height: 0;\n background-color: rgba(0, 0, 0, 0.54);\n opacity: 0;\n transition: width 0ms 250ms, height 0ms 250ms, opacity 250ms;\n }\n [data-md-toggle=drawer]:checked ~ .md-overlay {\n width: 100%;\n height: 100%;\n opacity: 1;\n transition: width 0ms, height 0ms, opacity 250ms;\n }\n}\n@keyframes facts {\n 0% {\n height: 0;\n }\n 100% {\n height: 0.65rem;\n }\n}\n@keyframes fact {\n 0% {\n transform: translateY(100%);\n opacity: 0;\n }\n 50% {\n opacity: 0;\n }\n 100% {\n transform: translateY(0%);\n opacity: 1;\n }\n}\n:root {\n --md-source-forks-icon: svg-load(\"octicons/repo-forked-16.svg\");\n --md-source-repositories-icon: svg-load(\"octicons/repo-16.svg\");\n --md-source-stars-icon: svg-load(\"octicons/star-16.svg\");\n --md-source-version-icon: svg-load(\"octicons/tag-16.svg\");\n}\n\n.md-source {\n display: block;\n font-size: 0.65rem;\n line-height: 1.2;\n white-space: nowrap;\n outline-color: var(--md-accent-fg-color);\n backface-visibility: hidden;\n transition: opacity 250ms;\n}\n.md-source:hover {\n opacity: 0.7;\n}\n.md-source__icon {\n display: inline-block;\n width: 2rem;\n height: 2.4rem;\n vertical-align: middle;\n}\n.md-source__icon svg {\n margin-top: 0.6rem;\n margin-left: 0.6rem;\n}\n[dir=rtl] .md-source__icon svg {\n margin-right: 0.6rem;\n margin-left: initial;\n}\n.md-source__icon + .md-source__repository {\n margin-left: -2rem;\n padding-left: 2rem;\n}\n[dir=rtl] .md-source__icon + .md-source__repository {\n margin-right: -2rem;\n margin-left: initial;\n padding-right: 2rem;\n padding-left: initial;\n}\n.md-source__repository {\n display: inline-block;\n max-width: calc(100% - 1.2rem);\n margin-left: 0.6rem;\n overflow: hidden;\n text-overflow: ellipsis;\n vertical-align: middle;\n}\n.md-source__facts {\n margin: 0.1rem 0 0;\n padding: 0;\n overflow: hidden;\n font-size: 0.55rem;\n list-style-type: none;\n opacity: 0.75;\n}\n[data-md-state=done] .md-source__facts {\n animation: facts 250ms ease-in;\n}\n.md-source__fact {\n display: inline-block;\n}\n[data-md-state=done] .md-source__fact {\n animation: fact 400ms ease-out;\n}\n.md-source__fact::before {\n display: inline-block;\n width: 0.6rem;\n height: 0.6rem;\n margin-right: 0.1rem;\n vertical-align: text-top;\n background-color: currentColor;\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n}\n.md-source__fact:nth-child(1n+2)::before {\n margin-left: 0.4rem;\n}\n[dir=rtl] .md-source__fact {\n margin-right: initial;\n margin-left: 0.1rem;\n}\n[dir=rtl] .md-source__fact:nth-child(1n+2)::before {\n margin-right: 0.4rem;\n margin-left: initial;\n}\n.md-source__fact--version::before {\n mask-image: var(--md-source-version-icon);\n}\n.md-source__fact--stars::before {\n mask-image: var(--md-source-stars-icon);\n}\n.md-source__fact--forks::before {\n mask-image: var(--md-source-forks-icon);\n}\n.md-source__fact--repositories::before {\n mask-image: var(--md-source-repositories-icon);\n}\n\n.md-tabs {\n width: 100%;\n overflow: auto;\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color);\n}\n@media print {\n .md-tabs {\n display: none;\n }\n}\n@media screen and (max-width: 76.1875em) {\n .md-tabs {\n display: none;\n }\n}\n.md-tabs[data-md-state=hidden] {\n pointer-events: none;\n}\n.md-tabs__list {\n margin: 0;\n margin-left: 0.2rem;\n padding: 0;\n white-space: nowrap;\n list-style: none;\n contain: content;\n}\n[dir=rtl] .md-tabs__list {\n margin-right: 0.2rem;\n margin-left: initial;\n}\n.md-tabs__item {\n display: inline-block;\n height: 2.4rem;\n padding-right: 0.6rem;\n padding-left: 0.6rem;\n}\n.md-tabs__link {\n display: block;\n margin-top: 0.8rem;\n font-size: 0.7rem;\n outline-color: var(--md-accent-fg-color);\n outline-offset: 0.2rem;\n backface-visibility: hidden;\n opacity: 0.7;\n transition: transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1), opacity 250ms;\n}\n.md-tabs__link--active, .md-tabs__link:focus, .md-tabs__link:hover {\n color: inherit;\n opacity: 1;\n}\n.md-tabs__item:nth-child(2) .md-tabs__link {\n transition-delay: 20ms;\n}\n.md-tabs__item:nth-child(3) .md-tabs__link {\n transition-delay: 40ms;\n}\n.md-tabs__item:nth-child(4) .md-tabs__link {\n transition-delay: 60ms;\n}\n.md-tabs__item:nth-child(5) .md-tabs__link {\n transition-delay: 80ms;\n}\n.md-tabs__item:nth-child(6) .md-tabs__link {\n transition-delay: 100ms;\n}\n.md-tabs__item:nth-child(7) .md-tabs__link {\n transition-delay: 120ms;\n}\n.md-tabs__item:nth-child(8) .md-tabs__link {\n transition-delay: 140ms;\n}\n.md-tabs__item:nth-child(9) .md-tabs__link {\n transition-delay: 160ms;\n}\n.md-tabs__item:nth-child(10) .md-tabs__link {\n transition-delay: 180ms;\n}\n.md-tabs__item:nth-child(11) .md-tabs__link {\n transition-delay: 200ms;\n}\n.md-tabs__item:nth-child(12) .md-tabs__link {\n transition-delay: 220ms;\n}\n.md-tabs__item:nth-child(13) .md-tabs__link {\n transition-delay: 240ms;\n}\n.md-tabs__item:nth-child(14) .md-tabs__link {\n transition-delay: 260ms;\n}\n.md-tabs__item:nth-child(15) .md-tabs__link {\n transition-delay: 280ms;\n}\n.md-tabs__item:nth-child(16) .md-tabs__link {\n transition-delay: 300ms;\n}\n.md-tabs[data-md-state=hidden] .md-tabs__link {\n transform: translateY(50%);\n opacity: 0;\n transition: transform 0ms 100ms, opacity 100ms;\n}\n\n.md-top {\n position: sticky;\n bottom: 0.4rem;\n z-index: 1;\n float: right;\n margin: -2.8rem 0.4rem 0.4rem;\n padding: 0.4rem;\n color: var(--md-primary-bg-color);\n background: var(--md-primary-fg-color);\n border-radius: 100%;\n outline: none;\n box-shadow: 0 0.2rem 0.5rem rgba(0, 0, 0, 0.1), 0 0.025rem 0.05rem rgba(0, 0, 0, 0.1);\n transform: translateY(0);\n transition: opacity 125ms, transform 125ms cubic-bezier(0.4, 0, 0.2, 1), background-color 125ms;\n}\n[dir=rtl] .md-top {\n float: left;\n}\n.md-top[data-md-state=hidden] {\n transform: translateY(-0.2rem);\n opacity: 0;\n pointer-events: none;\n}\n.md-top:focus, .md-top:hover {\n background: var(--md-accent-fg-color);\n transform: scale(1.1);\n}\n\n@keyframes hoverfix {\n 0% {\n pointer-events: none;\n }\n}\n:root {\n --md-version-icon: svg-load(\"fontawesome/solid/caret-down.svg\");\n}\n\n.md-version {\n flex-shrink: 0;\n height: 2.4rem;\n font-size: 0.8rem;\n}\n.md-version__current {\n position: relative;\n top: 0.05rem;\n margin-right: 0.4rem;\n margin-left: 1.4rem;\n color: inherit;\n outline: none;\n cursor: pointer;\n}\n[dir=rtl] .md-version__current {\n margin-right: 1.4rem;\n margin-left: 0.4rem;\n}\n.md-version__current::after {\n display: inline-block;\n width: 0.4rem;\n height: 0.6rem;\n margin-left: 0.4rem;\n background-color: currentColor;\n mask-image: var(--md-version-icon);\n mask-repeat: no-repeat;\n content: \"\";\n}\n[dir=rtl] .md-version__current::after {\n margin-right: 0.4rem;\n margin-left: initial;\n}\n.md-version__list {\n position: absolute;\n top: 0.15rem;\n z-index: 1;\n max-height: 0;\n margin: 0.2rem 0.8rem;\n padding: 0;\n overflow: auto;\n color: var(--md-default-fg-color);\n list-style-type: none;\n background-color: var(--md-default-bg-color);\n border-radius: 0.1rem;\n box-shadow: 0 0.2rem 0.5rem rgba(0, 0, 0, 0.1), 0 0 0.05rem rgba(0, 0, 0, 0.25);\n opacity: 0;\n transition: max-height 0ms 500ms, opacity 250ms 250ms;\n scroll-snap-type: y mandatory;\n}\n.md-version:focus-within .md-version__list, .md-version:hover .md-version__list {\n max-height: 10rem;\n opacity: 1;\n transition: max-height 0ms, opacity 250ms;\n}\n@media (pointer: coarse) {\n .md-version:hover .md-version__list {\n animation: hoverfix 250ms forwards;\n }\n .md-version:focus-within .md-version__list {\n animation: none;\n }\n}\n.md-version__item {\n line-height: 1.8rem;\n}\n.md-version__link {\n display: block;\n width: 100%;\n padding-right: 1.2rem;\n padding-left: 0.6rem;\n white-space: nowrap;\n outline: none;\n cursor: pointer;\n transition: color 250ms, background-color 250ms;\n scroll-snap-align: start;\n}\n[dir=rtl] .md-version__link {\n padding-right: 0.6rem;\n padding-left: 1.2rem;\n}\n.md-version__link:focus, .md-version__link:hover {\n color: var(--md-accent-fg-color);\n}\n.md-version__link:focus {\n background-color: var(--md-default-fg-color--lightest);\n}\n\n:root {\n --md-admonition-icon--note:\n svg-load(\"material/pencil.svg\");\n --md-admonition-icon--abstract:\n svg-load(\"material/text-subject.svg\");\n --md-admonition-icon--info:\n svg-load(\"material/information.svg\");\n --md-admonition-icon--tip:\n svg-load(\"material/fire.svg\");\n --md-admonition-icon--success:\n svg-load(\"material/check-circle.svg\");\n --md-admonition-icon--question:\n svg-load(\"material/help-circle.svg\");\n --md-admonition-icon--warning:\n svg-load(\"material/alert.svg\");\n --md-admonition-icon--failure:\n svg-load(\"material/close-circle.svg\");\n --md-admonition-icon--danger:\n svg-load(\"material/flash-circle.svg\");\n --md-admonition-icon--bug:\n svg-load(\"material/bug.svg\");\n --md-admonition-icon--example:\n svg-load(\"material/format-list-numbered.svg\");\n --md-admonition-icon--quote:\n svg-load(\"material/format-quote-close.svg\");\n}\n\n.md-typeset .admonition, .md-typeset details {\n margin: 1.5625em 0;\n padding: 0 0.6rem;\n overflow: hidden;\n color: var(--md-admonition-fg-color);\n font-size: 0.64rem;\n page-break-inside: avoid;\n background-color: var(--md-admonition-bg-color);\n border-left: 0.2rem solid #448aff;\n border-radius: 0.1rem;\n box-shadow: 0 0.2rem 0.5rem rgba(0, 0, 0, 0.05), 0 0.025rem 0.05rem rgba(0, 0, 0, 0.05);\n}\n@media print {\n .md-typeset .admonition, .md-typeset details {\n box-shadow: none;\n }\n}\n[dir=rtl] .md-typeset .admonition, [dir=rtl] .md-typeset details {\n border-right: 0.2rem solid #448aff;\n border-left: none;\n}\n.md-typeset .admonition .admonition, .md-typeset details .admonition, .md-typeset .admonition details, .md-typeset details details {\n margin-top: 1em;\n margin-bottom: 1em;\n}\n.md-typeset .admonition .md-typeset__scrollwrap, .md-typeset details .md-typeset__scrollwrap {\n margin: 1em -0.6rem;\n}\n.md-typeset .admonition .md-typeset__table, .md-typeset details .md-typeset__table {\n padding: 0 0.6rem;\n}\n.md-typeset .admonition > .tabbed-set:only-child, .md-typeset details > .tabbed-set:only-child {\n margin-top: 0;\n}\nhtml .md-typeset .admonition > :last-child, html .md-typeset details > :last-child {\n margin-bottom: 0.6rem;\n}\n.md-typeset .admonition-title, .md-typeset summary {\n position: relative;\n margin: 0 -0.6rem 0 -0.8rem;\n padding: 0.4rem 0.6rem 0.4rem 2rem;\n font-weight: 700;\n background-color: rgba(68, 138, 255, 0.1);\n border-left: 0.2rem solid #448aff;\n}\n[dir=rtl] .md-typeset .admonition-title, [dir=rtl] .md-typeset summary {\n margin: 0 -0.8rem 0 -0.6rem;\n padding: 0.4rem 2rem 0.4rem 0.6rem;\n border-right: 0.2rem solid #448aff;\n border-left: none;\n}\nhtml .md-typeset .admonition-title:last-child, html .md-typeset summary:last-child {\n margin-bottom: 0;\n}\n.md-typeset .admonition-title::before, .md-typeset summary::before {\n position: absolute;\n left: 0.6rem;\n width: 1rem;\n height: 1rem;\n background-color: #448aff;\n mask-image: var(--md-admonition-icon--note);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n}\n[dir=rtl] .md-typeset .admonition-title::before, [dir=rtl] .md-typeset summary::before {\n right: 0.6rem;\n left: initial;\n}\n.md-typeset .admonition-title + .tabbed-set:last-child, .md-typeset summary + .tabbed-set:last-child {\n margin-top: 0;\n}\n\n.md-typeset .admonition.note, .md-typeset details.note {\n border-color: #448aff;\n}\n\n.md-typeset .note > .admonition-title, .md-typeset .note > summary {\n background-color: rgba(68, 138, 255, 0.1);\n border-color: #448aff;\n}\n.md-typeset .note > .admonition-title::before, .md-typeset .note > summary::before {\n background-color: #448aff;\n mask-image: var(--md-admonition-icon--note);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.abstract, .md-typeset details.abstract, .md-typeset .admonition.tldr, .md-typeset details.tldr, .md-typeset .admonition.summary, .md-typeset details.summary {\n border-color: #00b0ff;\n}\n\n.md-typeset .abstract > .admonition-title, .md-typeset .abstract > summary, .md-typeset .tldr > .admonition-title, .md-typeset .tldr > summary, .md-typeset .summary > .admonition-title, .md-typeset .summary > summary {\n background-color: rgba(0, 176, 255, 0.1);\n border-color: #00b0ff;\n}\n.md-typeset .abstract > .admonition-title::before, .md-typeset .abstract > summary::before, .md-typeset .tldr > .admonition-title::before, .md-typeset .tldr > summary::before, .md-typeset .summary > .admonition-title::before, .md-typeset .summary > summary::before {\n background-color: #00b0ff;\n mask-image: var(--md-admonition-icon--abstract);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.info, .md-typeset details.info, .md-typeset .admonition.todo, .md-typeset details.todo {\n border-color: #00b8d4;\n}\n\n.md-typeset .info > .admonition-title, .md-typeset .info > summary, .md-typeset .todo > .admonition-title, .md-typeset .todo > summary {\n background-color: rgba(0, 184, 212, 0.1);\n border-color: #00b8d4;\n}\n.md-typeset .info > .admonition-title::before, .md-typeset .info > summary::before, .md-typeset .todo > .admonition-title::before, .md-typeset .todo > summary::before {\n background-color: #00b8d4;\n mask-image: var(--md-admonition-icon--info);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.tip, .md-typeset details.tip, .md-typeset .admonition.important, .md-typeset details.important, .md-typeset .admonition.hint, .md-typeset details.hint {\n border-color: #00bfa5;\n}\n\n.md-typeset .tip > .admonition-title, .md-typeset .tip > summary, .md-typeset .important > .admonition-title, .md-typeset .important > summary, .md-typeset .hint > .admonition-title, .md-typeset .hint > summary {\n background-color: rgba(0, 191, 165, 0.1);\n border-color: #00bfa5;\n}\n.md-typeset .tip > .admonition-title::before, .md-typeset .tip > summary::before, .md-typeset .important > .admonition-title::before, .md-typeset .important > summary::before, .md-typeset .hint > .admonition-title::before, .md-typeset .hint > summary::before {\n background-color: #00bfa5;\n mask-image: var(--md-admonition-icon--tip);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.success, .md-typeset details.success, .md-typeset .admonition.done, .md-typeset details.done, .md-typeset .admonition.check, .md-typeset details.check {\n border-color: #00c853;\n}\n\n.md-typeset .success > .admonition-title, .md-typeset .success > summary, .md-typeset .done > .admonition-title, .md-typeset .done > summary, .md-typeset .check > .admonition-title, .md-typeset .check > summary {\n background-color: rgba(0, 200, 83, 0.1);\n border-color: #00c853;\n}\n.md-typeset .success > .admonition-title::before, .md-typeset .success > summary::before, .md-typeset .done > .admonition-title::before, .md-typeset .done > summary::before, .md-typeset .check > .admonition-title::before, .md-typeset .check > summary::before {\n background-color: #00c853;\n mask-image: var(--md-admonition-icon--success);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.question, .md-typeset details.question, .md-typeset .admonition.faq, .md-typeset details.faq, .md-typeset .admonition.help, .md-typeset details.help {\n border-color: #64dd17;\n}\n\n.md-typeset .question > .admonition-title, .md-typeset .question > summary, .md-typeset .faq > .admonition-title, .md-typeset .faq > summary, .md-typeset .help > .admonition-title, .md-typeset .help > summary {\n background-color: rgba(100, 221, 23, 0.1);\n border-color: #64dd17;\n}\n.md-typeset .question > .admonition-title::before, .md-typeset .question > summary::before, .md-typeset .faq > .admonition-title::before, .md-typeset .faq > summary::before, .md-typeset .help > .admonition-title::before, .md-typeset .help > summary::before {\n background-color: #64dd17;\n mask-image: var(--md-admonition-icon--question);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.warning, .md-typeset details.warning, .md-typeset .admonition.attention, .md-typeset details.attention, .md-typeset .admonition.caution, .md-typeset details.caution {\n border-color: #ff9100;\n}\n\n.md-typeset .warning > .admonition-title, .md-typeset .warning > summary, .md-typeset .attention > .admonition-title, .md-typeset .attention > summary, .md-typeset .caution > .admonition-title, .md-typeset .caution > summary {\n background-color: rgba(255, 145, 0, 0.1);\n border-color: #ff9100;\n}\n.md-typeset .warning > .admonition-title::before, .md-typeset .warning > summary::before, .md-typeset .attention > .admonition-title::before, .md-typeset .attention > summary::before, .md-typeset .caution > .admonition-title::before, .md-typeset .caution > summary::before {\n background-color: #ff9100;\n mask-image: var(--md-admonition-icon--warning);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.failure, .md-typeset details.failure, .md-typeset .admonition.missing, .md-typeset details.missing, .md-typeset .admonition.fail, .md-typeset details.fail {\n border-color: #ff5252;\n}\n\n.md-typeset .failure > .admonition-title, .md-typeset .failure > summary, .md-typeset .missing > .admonition-title, .md-typeset .missing > summary, .md-typeset .fail > .admonition-title, .md-typeset .fail > summary {\n background-color: rgba(255, 82, 82, 0.1);\n border-color: #ff5252;\n}\n.md-typeset .failure > .admonition-title::before, .md-typeset .failure > summary::before, .md-typeset .missing > .admonition-title::before, .md-typeset .missing > summary::before, .md-typeset .fail > .admonition-title::before, .md-typeset .fail > summary::before {\n background-color: #ff5252;\n mask-image: var(--md-admonition-icon--failure);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.danger, .md-typeset details.danger, .md-typeset .admonition.error, .md-typeset details.error {\n border-color: #ff1744;\n}\n\n.md-typeset .danger > .admonition-title, .md-typeset .danger > summary, .md-typeset .error > .admonition-title, .md-typeset .error > summary {\n background-color: rgba(255, 23, 68, 0.1);\n border-color: #ff1744;\n}\n.md-typeset .danger > .admonition-title::before, .md-typeset .danger > summary::before, .md-typeset .error > .admonition-title::before, .md-typeset .error > summary::before {\n background-color: #ff1744;\n mask-image: var(--md-admonition-icon--danger);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.bug, .md-typeset details.bug {\n border-color: #f50057;\n}\n\n.md-typeset .bug > .admonition-title, .md-typeset .bug > summary {\n background-color: rgba(245, 0, 87, 0.1);\n border-color: #f50057;\n}\n.md-typeset .bug > .admonition-title::before, .md-typeset .bug > summary::before {\n background-color: #f50057;\n mask-image: var(--md-admonition-icon--bug);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.example, .md-typeset details.example {\n border-color: #7c4dff;\n}\n\n.md-typeset .example > .admonition-title, .md-typeset .example > summary {\n background-color: rgba(124, 77, 255, 0.1);\n border-color: #7c4dff;\n}\n.md-typeset .example > .admonition-title::before, .md-typeset .example > summary::before {\n background-color: #7c4dff;\n mask-image: var(--md-admonition-icon--example);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n.md-typeset .admonition.quote, .md-typeset details.quote, .md-typeset .admonition.cite, .md-typeset details.cite {\n border-color: #9e9e9e;\n}\n\n.md-typeset .quote > .admonition-title, .md-typeset .quote > summary, .md-typeset .cite > .admonition-title, .md-typeset .cite > summary {\n background-color: rgba(158, 158, 158, 0.1);\n border-color: #9e9e9e;\n}\n.md-typeset .quote > .admonition-title::before, .md-typeset .quote > summary::before, .md-typeset .cite > .admonition-title::before, .md-typeset .cite > summary::before {\n background-color: #9e9e9e;\n mask-image: var(--md-admonition-icon--quote);\n mask-repeat: no-repeat;\n mask-size: contain;\n}\n\n:root {\n --md-footnotes-icon: svg-load(\"material/keyboard-return.svg\");\n}\n\n.md-typeset .footnote {\n color: var(--md-default-fg-color--light);\n font-size: 0.64rem;\n}\n.md-typeset .footnote > ol {\n margin-left: 0;\n}\n.md-typeset .footnote > ol > li {\n transition: color 125ms;\n}\n.md-typeset .footnote > ol > li:target {\n color: var(--md-default-fg-color);\n}\n.md-typeset .footnote > ol > li:hover .footnote-backref, .md-typeset .footnote > ol > li:target .footnote-backref {\n transform: translateX(0);\n opacity: 1;\n}\n.md-typeset .footnote > ol > li > :first-child {\n margin-top: 0;\n}\n.md-typeset .footnote-ref {\n font-weight: 700;\n font-size: 0.75em;\n}\nhtml .md-typeset .footnote-ref {\n outline-offset: 0.1rem;\n}\n.md-typeset .footnote-backref {\n display: inline-block;\n color: var(--md-typeset-a-color);\n font-size: 0;\n vertical-align: text-bottom;\n transform: translateX(0.25rem);\n opacity: 0;\n transition: color 250ms, transform 250ms 250ms, opacity 125ms 250ms;\n}\n@media print {\n .md-typeset .footnote-backref {\n color: var(--md-typeset-a-color);\n transform: translateX(0);\n opacity: 1;\n }\n}\n[dir=rtl] .md-typeset .footnote-backref {\n transform: translateX(-0.25rem);\n}\n.md-typeset .footnote-backref:hover {\n color: var(--md-accent-fg-color);\n}\n.md-typeset .footnote-backref::before {\n display: inline-block;\n width: 0.8rem;\n height: 0.8rem;\n background-color: currentColor;\n mask-image: var(--md-footnotes-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n}\n[dir=rtl] .md-typeset .footnote-backref::before svg {\n transform: scaleX(-1);\n}\n.md-typeset [id^=\"fnref:\"]:target {\n scroll-margin-top: initial;\n margin-top: -3.4rem;\n padding-top: 3.4rem;\n}\n.md-typeset [id^=\"fnref:\"]:target > .footnote-ref {\n outline: auto;\n}\n.md-typeset [id^=\"fn:\"]:target {\n scroll-margin-top: initial;\n margin-top: -3.45rem;\n padding-top: 3.45rem;\n}\n\n.md-typeset .headerlink {\n display: inline-block;\n margin-left: 0.5rem;\n color: var(--md-default-fg-color--lighter);\n opacity: 0;\n transition: color 250ms, opacity 125ms;\n}\n@media print {\n .md-typeset .headerlink {\n display: none;\n }\n}\n[dir=rtl] .md-typeset .headerlink {\n margin-right: 0.5rem;\n margin-left: initial;\n}\n.md-typeset :hover > .headerlink,\n.md-typeset :target > .headerlink,\n.md-typeset .headerlink:focus {\n opacity: 1;\n transition: color 250ms, opacity 125ms;\n}\n.md-typeset :target > .headerlink,\n.md-typeset .headerlink:focus,\n.md-typeset .headerlink:hover {\n color: var(--md-accent-fg-color);\n}\n.md-typeset :target {\n scroll-margin-top: 3.6rem;\n}\n.md-typeset h1:target,\n.md-typeset h2:target,\n.md-typeset h3:target {\n scroll-margin-top: initial;\n}\n.md-typeset h1:target::before,\n.md-typeset h2:target::before,\n.md-typeset h3:target::before {\n display: block;\n margin-top: -3.4rem;\n padding-top: 3.4rem;\n content: \"\";\n}\n.md-typeset h4:target {\n scroll-margin-top: initial;\n}\n.md-typeset h4:target::before {\n display: block;\n margin-top: -3.45rem;\n padding-top: 3.45rem;\n content: \"\";\n}\n.md-typeset h5:target,\n.md-typeset h6:target {\n scroll-margin-top: initial;\n}\n.md-typeset h5:target::before,\n.md-typeset h6:target::before {\n display: block;\n margin-top: -3.6rem;\n padding-top: 3.6rem;\n content: \"\";\n}\n\n.md-typeset div.arithmatex {\n overflow: auto;\n}\n@media screen and (max-width: 44.9375em) {\n .md-typeset div.arithmatex {\n margin: 0 -0.8rem;\n }\n}\n.md-typeset div.arithmatex > * {\n width: min-content;\n margin: 1em auto !important;\n padding: 0 0.8rem;\n touch-action: auto;\n}\n\n.md-typeset del.critic,\n.md-typeset ins.critic,\n.md-typeset .critic.comment {\n box-decoration-break: clone;\n}\n.md-typeset del.critic {\n background-color: var(--md-typeset-del-color);\n}\n.md-typeset ins.critic {\n background-color: var(--md-typeset-ins-color);\n}\n.md-typeset .critic.comment {\n color: var(--md-code-hl-comment-color);\n}\n.md-typeset .critic.comment::before {\n content: \"/* \";\n}\n.md-typeset .critic.comment::after {\n content: \" */\";\n}\n.md-typeset .critic.block {\n display: block;\n margin: 1em 0;\n padding-right: 0.8rem;\n padding-left: 0.8rem;\n overflow: auto;\n box-shadow: none;\n}\n.md-typeset .critic.block > :first-child {\n margin-top: 0.5em;\n}\n.md-typeset .critic.block > :last-child {\n margin-bottom: 0.5em;\n}\n\n:root {\n --md-details-icon: svg-load(\"material/chevron-right.svg\");\n}\n\n.md-typeset details {\n display: flow-root;\n padding-top: 0;\n overflow: visible;\n}\n.md-typeset details[open] > summary::after {\n transform: rotate(90deg);\n}\n.md-typeset details:not([open]) {\n padding-bottom: 0;\n box-shadow: none;\n}\n.md-typeset details:not([open]) > summary {\n border-radius: 0.1rem;\n}\n.md-typeset details::after {\n display: table;\n content: \"\";\n}\n.md-typeset summary {\n display: block;\n min-height: 1rem;\n padding: 0.4rem 1.8rem 0.4rem 2rem;\n border-top-left-radius: 0.1rem;\n border-top-right-radius: 0.1rem;\n cursor: pointer;\n}\n[dir=rtl] .md-typeset summary {\n padding: 0.4rem 2.2rem 0.4rem 1.8rem;\n}\n.md-typeset summary:not(.focus-visible) {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n}\n.md-typeset summary::after {\n position: absolute;\n top: 0.4rem;\n right: 0.4rem;\n width: 1rem;\n height: 1rem;\n background-color: currentColor;\n mask-image: var(--md-details-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n transform: rotate(0deg);\n transition: transform 250ms;\n content: \"\";\n}\n[dir=rtl] .md-typeset summary::after {\n right: initial;\n left: 0.4rem;\n transform: rotate(180deg);\n}\n.md-typeset summary::marker, .md-typeset summary::-webkit-details-marker {\n display: none;\n}\n\n.md-typeset .emojione,\n.md-typeset .twemoji,\n.md-typeset .gemoji {\n display: inline-flex;\n height: 1.125em;\n vertical-align: text-top;\n}\n.md-typeset .emojione svg,\n.md-typeset .twemoji svg,\n.md-typeset .gemoji svg {\n width: 1.125em;\n max-height: 100%;\n fill: currentColor;\n}\n\n.highlight .o,\n.highlight .ow {\n color: var(--md-code-hl-operator-color);\n}\n.highlight .p {\n color: var(--md-code-hl-punctuation-color);\n}\n.highlight .cpf,\n.highlight .l,\n.highlight .s,\n.highlight .sb,\n.highlight .sc,\n.highlight .s2,\n.highlight .si,\n.highlight .s1,\n.highlight .ss {\n color: var(--md-code-hl-string-color);\n}\n.highlight .cp,\n.highlight .se,\n.highlight .sh,\n.highlight .sr,\n.highlight .sx {\n color: var(--md-code-hl-special-color);\n}\n.highlight .m,\n.highlight .mb,\n.highlight .mf,\n.highlight .mh,\n.highlight .mi,\n.highlight .il,\n.highlight .mo {\n color: var(--md-code-hl-number-color);\n}\n.highlight .k,\n.highlight .kd,\n.highlight .kn,\n.highlight .kp,\n.highlight .kr,\n.highlight .kt {\n color: var(--md-code-hl-keyword-color);\n}\n.highlight .kc,\n.highlight .n {\n color: var(--md-code-hl-name-color);\n}\n.highlight .no,\n.highlight .nb,\n.highlight .bp {\n color: var(--md-code-hl-constant-color);\n}\n.highlight .nc,\n.highlight .ne,\n.highlight .nf,\n.highlight .nn {\n color: var(--md-code-hl-function-color);\n}\n.highlight .nd,\n.highlight .ni,\n.highlight .nl,\n.highlight .nt {\n color: var(--md-code-hl-keyword-color);\n}\n.highlight .c,\n.highlight .cm,\n.highlight .c1,\n.highlight .ch,\n.highlight .cs,\n.highlight .sd {\n color: var(--md-code-hl-comment-color);\n}\n.highlight .na,\n.highlight .nv,\n.highlight .vc,\n.highlight .vg,\n.highlight .vi {\n color: var(--md-code-hl-variable-color);\n}\n.highlight .ge,\n.highlight .gr,\n.highlight .gh,\n.highlight .go,\n.highlight .gp,\n.highlight .gs,\n.highlight .gu,\n.highlight .gt {\n color: var(--md-code-hl-generic-color);\n}\n.highlight .gd,\n.highlight .gi {\n margin: 0 -0.125em;\n padding: 0 0.125em;\n border-radius: 0.1rem;\n}\n.highlight .gd {\n background-color: var(--md-typeset-del-color);\n}\n.highlight .gi {\n background-color: var(--md-typeset-ins-color);\n}\n.highlight .hll {\n display: block;\n margin: 0 -1.1764705882em;\n padding: 0 1.1764705882em;\n background-color: var(--md-code-hl-color);\n}\n.highlight [data-linenos]::before {\n position: sticky;\n left: -1.1764705882em;\n float: left;\n margin-right: 1.1764705882em;\n margin-left: -1.1764705882em;\n padding-left: 1.1764705882em;\n color: var(--md-default-fg-color--light);\n background-color: var(--md-code-bg-color);\n box-shadow: -0.05rem 0 var(--md-default-fg-color--lightest) inset;\n content: attr(data-linenos);\n user-select: none;\n}\n\n.highlighttable {\n display: flow-root;\n overflow: hidden;\n}\n.highlighttable tbody,\n.highlighttable td {\n display: block;\n padding: 0;\n}\n.highlighttable tr {\n display: flex;\n}\n.highlighttable pre {\n margin: 0;\n}\n.highlighttable .linenos {\n padding: 0.7720588235em 1.1764705882em;\n padding-right: 0;\n font-size: 0.85em;\n background-color: var(--md-code-bg-color);\n user-select: none;\n}\n.highlighttable .linenodiv {\n padding-right: 0.5882352941em;\n box-shadow: -0.05rem 0 var(--md-default-fg-color--lightest) inset;\n}\n.highlighttable .linenodiv pre {\n color: var(--md-default-fg-color--light);\n text-align: right;\n}\n.highlighttable .code {\n flex: 1;\n overflow: hidden;\n}\n\n.md-typeset .highlighttable {\n margin: 1em 0;\n direction: ltr;\n border-radius: 0.1rem;\n}\n.md-typeset .highlighttable code {\n border-radius: 0;\n}\n@media screen and (max-width: 44.9375em) {\n .md-typeset > .highlight {\n margin: 1em -0.8rem;\n }\n .md-typeset > .highlight .hll {\n margin: 0 -0.8rem;\n padding: 0 0.8rem;\n }\n .md-typeset > .highlight code {\n border-radius: 0;\n }\n .md-typeset > .highlighttable {\n margin: 1em -0.8rem;\n border-radius: 0;\n }\n .md-typeset > .highlighttable .hll {\n margin: 0 -0.8rem;\n padding: 0 0.8rem;\n }\n}\n\n.md-typeset .keys kbd::before,\n.md-typeset .keys kbd::after {\n position: relative;\n margin: 0;\n color: inherit;\n -moz-osx-font-smoothing: initial;\n -webkit-font-smoothing: initial;\n}\n.md-typeset .keys span {\n padding: 0 0.2em;\n color: var(--md-default-fg-color--light);\n}\n.md-typeset .keys .key-alt::before {\n padding-right: 0.4em;\n content: \"⎇\";\n}\n.md-typeset .keys .key-left-alt::before {\n padding-right: 0.4em;\n content: \"⎇\";\n}\n.md-typeset .keys .key-right-alt::before {\n padding-right: 0.4em;\n content: \"⎇\";\n}\n.md-typeset .keys .key-command::before {\n padding-right: 0.4em;\n content: \"⌘\";\n}\n.md-typeset .keys .key-left-command::before {\n padding-right: 0.4em;\n content: \"⌘\";\n}\n.md-typeset .keys .key-right-command::before {\n padding-right: 0.4em;\n content: \"⌘\";\n}\n.md-typeset .keys .key-control::before {\n padding-right: 0.4em;\n content: \"⌃\";\n}\n.md-typeset .keys .key-left-control::before {\n padding-right: 0.4em;\n content: \"⌃\";\n}\n.md-typeset .keys .key-right-control::before {\n padding-right: 0.4em;\n content: \"⌃\";\n}\n.md-typeset .keys .key-meta::before {\n padding-right: 0.4em;\n content: \"◆\";\n}\n.md-typeset .keys .key-left-meta::before {\n padding-right: 0.4em;\n content: \"◆\";\n}\n.md-typeset .keys .key-right-meta::before {\n padding-right: 0.4em;\n content: \"◆\";\n}\n.md-typeset .keys .key-option::before {\n padding-right: 0.4em;\n content: \"⌥\";\n}\n.md-typeset .keys .key-left-option::before {\n padding-right: 0.4em;\n content: \"⌥\";\n}\n.md-typeset .keys .key-right-option::before {\n padding-right: 0.4em;\n content: \"⌥\";\n}\n.md-typeset .keys .key-shift::before {\n padding-right: 0.4em;\n content: \"⇧\";\n}\n.md-typeset .keys .key-left-shift::before {\n padding-right: 0.4em;\n content: \"⇧\";\n}\n.md-typeset .keys .key-right-shift::before {\n padding-right: 0.4em;\n content: \"⇧\";\n}\n.md-typeset .keys .key-super::before {\n padding-right: 0.4em;\n content: \"❖\";\n}\n.md-typeset .keys .key-left-super::before {\n padding-right: 0.4em;\n content: \"❖\";\n}\n.md-typeset .keys .key-right-super::before {\n padding-right: 0.4em;\n content: \"❖\";\n}\n.md-typeset .keys .key-windows::before {\n padding-right: 0.4em;\n content: \"⊞\";\n}\n.md-typeset .keys .key-left-windows::before {\n padding-right: 0.4em;\n content: \"⊞\";\n}\n.md-typeset .keys .key-right-windows::before {\n padding-right: 0.4em;\n content: \"⊞\";\n}\n.md-typeset .keys .key-arrow-down::before {\n padding-right: 0.4em;\n content: \"↓\";\n}\n.md-typeset .keys .key-arrow-left::before {\n padding-right: 0.4em;\n content: \"←\";\n}\n.md-typeset .keys .key-arrow-right::before {\n padding-right: 0.4em;\n content: \"→\";\n}\n.md-typeset .keys .key-arrow-up::before {\n padding-right: 0.4em;\n content: \"↑\";\n}\n.md-typeset .keys .key-backspace::before {\n padding-right: 0.4em;\n content: \"⌫\";\n}\n.md-typeset .keys .key-backtab::before {\n padding-right: 0.4em;\n content: \"⇤\";\n}\n.md-typeset .keys .key-caps-lock::before {\n padding-right: 0.4em;\n content: \"⇪\";\n}\n.md-typeset .keys .key-clear::before {\n padding-right: 0.4em;\n content: \"⌧\";\n}\n.md-typeset .keys .key-context-menu::before {\n padding-right: 0.4em;\n content: \"☰\";\n}\n.md-typeset .keys .key-delete::before {\n padding-right: 0.4em;\n content: \"⌦\";\n}\n.md-typeset .keys .key-eject::before {\n padding-right: 0.4em;\n content: \"⏏\";\n}\n.md-typeset .keys .key-end::before {\n padding-right: 0.4em;\n content: \"⤓\";\n}\n.md-typeset .keys .key-escape::before {\n padding-right: 0.4em;\n content: \"⎋\";\n}\n.md-typeset .keys .key-home::before {\n padding-right: 0.4em;\n content: \"⤒\";\n}\n.md-typeset .keys .key-insert::before {\n padding-right: 0.4em;\n content: \"⎀\";\n}\n.md-typeset .keys .key-page-down::before {\n padding-right: 0.4em;\n content: \"⇟\";\n}\n.md-typeset .keys .key-page-up::before {\n padding-right: 0.4em;\n content: \"⇞\";\n}\n.md-typeset .keys .key-print-screen::before {\n padding-right: 0.4em;\n content: \"⎙\";\n}\n.md-typeset .keys .key-tab::after {\n padding-left: 0.4em;\n content: \"⇥\";\n}\n.md-typeset .keys .key-num-enter::after {\n padding-left: 0.4em;\n content: \"⌤\";\n}\n.md-typeset .keys .key-enter::after {\n padding-left: 0.4em;\n content: \"⏎\";\n}\n\n.md-typeset .tabbed-content {\n display: none;\n order: 99;\n width: 100%;\n box-shadow: 0 -0.05rem var(--md-default-fg-color--lightest);\n}\n@media print {\n .md-typeset .tabbed-content {\n display: block;\n order: initial;\n }\n}\n.md-typeset .tabbed-content > pre:only-child,\n.md-typeset .tabbed-content > .highlight:only-child pre,\n.md-typeset .tabbed-content > .highlighttable:only-child {\n margin: 0;\n}\n.md-typeset .tabbed-content > pre:only-child > code,\n.md-typeset .tabbed-content > .highlight:only-child pre > code,\n.md-typeset .tabbed-content > .highlighttable:only-child > code {\n border-top-left-radius: 0;\n border-top-right-radius: 0;\n}\n.md-typeset .tabbed-content > .tabbed-set {\n margin: 0;\n}\n.md-typeset .tabbed-set {\n position: relative;\n display: flex;\n flex-wrap: wrap;\n margin: 1em 0;\n border-radius: 0.1rem;\n}\n.md-typeset .tabbed-set > input {\n position: absolute;\n width: 0;\n height: 0;\n opacity: 0;\n}\n.md-typeset .tabbed-set > input:checked + label {\n color: var(--md-accent-fg-color);\n border-color: var(--md-accent-fg-color);\n}\n.md-typeset .tabbed-set > input:checked + label + .tabbed-content {\n display: block;\n}\n.md-typeset .tabbed-set > input:focus + label {\n outline-style: auto;\n outline-color: var(--md-accent-fg-color);\n}\n.md-typeset .tabbed-set > input:not(.focus-visible) + label {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n}\n.md-typeset .tabbed-set > label {\n z-index: 1;\n width: auto;\n padding: 0.9375em 1.25em 0.78125em;\n color: var(--md-default-fg-color--light);\n font-weight: 700;\n font-size: 0.64rem;\n border-bottom: 0.1rem solid transparent;\n cursor: pointer;\n transition: color 250ms;\n}\n.md-typeset .tabbed-set > label:hover {\n color: var(--md-accent-fg-color);\n}\n\n:root {\n --md-tasklist-icon:\n svg-load(\"octicons/check-circle-fill-24.svg\");\n --md-tasklist-icon--checked:\n svg-load(\"octicons/check-circle-fill-24.svg\");\n}\n\n.md-typeset .task-list-item {\n position: relative;\n list-style-type: none;\n}\n.md-typeset .task-list-item [type=checkbox] {\n position: absolute;\n top: 0.45em;\n left: -2em;\n}\n[dir=rtl] .md-typeset .task-list-item [type=checkbox] {\n right: -2em;\n left: initial;\n}\n.md-typeset .task-list-control [type=checkbox] {\n z-index: -1;\n opacity: 0;\n}\n.md-typeset .task-list-indicator::before {\n position: absolute;\n top: 0.15em;\n left: -1.5em;\n width: 1.25em;\n height: 1.25em;\n background-color: var(--md-default-fg-color--lightest);\n mask-image: var(--md-tasklist-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n}\n[dir=rtl] .md-typeset .task-list-indicator::before {\n right: -1.5em;\n left: initial;\n}\n.md-typeset [type=checkbox]:checked + .task-list-indicator::before {\n background-color: #00e676;\n mask-image: var(--md-tasklist-icon--checked);\n}\n\n@media screen and (min-width: 45em) {\n .md-typeset .inline {\n float: left;\n width: 11.7rem;\n margin-top: 0;\n margin-right: 0.8rem;\n margin-bottom: 0.8rem;\n }\n [dir=rtl] .md-typeset .inline {\n float: right;\n margin-right: 0;\n margin-left: 0.8rem;\n }\n .md-typeset .inline.end {\n float: right;\n margin-right: 0;\n margin-left: 0.8rem;\n }\n [dir=rtl] .md-typeset .inline.end {\n float: left;\n margin-right: 0.8rem;\n margin-left: 0;\n }\n}\n\n/*# sourceMappingURL=main.css.map */","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Enforce correct box model and prevent adjustments of font size after\n// orientation changes in IE and iOS\nhtml {\n box-sizing: border-box;\n text-size-adjust: none;\n}\n\n// All elements shall inherit the document default\n*,\n*::before,\n*::after {\n box-sizing: inherit;\n}\n\n// Remove margin in all browsers\nbody {\n margin: 0;\n}\n\n// Reset tap outlines on iOS and Android\na,\nbutton,\nlabel,\ninput {\n -webkit-tap-highlight-color: transparent;\n}\n\n// Reset link styles\na {\n color: inherit;\n text-decoration: none;\n}\n\n// Normalize horizontal separator styles\nhr {\n display: block;\n box-sizing: content-box;\n height: px2rem(1px);\n padding: 0;\n overflow: visible;\n border: 0;\n}\n\n// Normalize font-size in all browsers\nsmall {\n font-size: 80%;\n}\n\n// Prevent subscript and superscript from affecting line-height\nsub,\nsup {\n line-height: 1em;\n}\n\n// Remove border on image\nimg {\n border-style: none;\n}\n\n// Reset table styles\ntable {\n border-collapse: separate;\n border-spacing: 0;\n}\n\n// Reset table cell styles\ntd,\nth {\n font-weight: 400;\n vertical-align: top;\n}\n\n// Reset button styles\nbutton {\n margin: 0;\n padding: 0;\n font-size: inherit;\n font-family: inherit;\n background: transparent;\n border: 0;\n}\n\n// Reset input styles\ninput {\n border: 0;\n outline: none;\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Color definitions\n:root {\n\n // Default color shades\n --md-default-fg-color: hsla(0, 0%, 0%, 0.87);\n --md-default-fg-color--light: hsla(0, 0%, 0%, 0.54);\n --md-default-fg-color--lighter: hsla(0, 0%, 0%, 0.32);\n --md-default-fg-color--lightest: hsla(0, 0%, 0%, 0.07);\n --md-default-bg-color: hsla(0, 0%, 100%, 1);\n --md-default-bg-color--light: hsla(0, 0%, 100%, 0.7);\n --md-default-bg-color--lighter: hsla(0, 0%, 100%, 0.3);\n --md-default-bg-color--lightest: hsla(0, 0%, 100%, 0.12);\n\n // Primary color shades\n --md-primary-fg-color: hsla(#{hex2hsl($clr-indigo-500)}, 1);\n --md-primary-fg-color--light: hsla(#{hex2hsl($clr-indigo-400)}, 1);\n --md-primary-fg-color--dark: hsla(#{hex2hsl($clr-indigo-700)}, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n\n // Accent color shades\n --md-accent-fg-color: hsla(#{hex2hsl($clr-indigo-a200)}, 1);\n --md-accent-fg-color--transparent: hsla(#{hex2hsl($clr-indigo-a200)}, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n\n // Light theme (default)\n > * {\n\n // Code color shades\n --md-code-fg-color: hsla(200, 18%, 26%, 1);\n --md-code-bg-color: hsla(0, 0%, 96%, 1);\n\n // Code highlighting color shades\n --md-code-hl-color: hsla(#{hex2hsl($clr-yellow-a200)}, 0.5);\n --md-code-hl-number-color: hsla(0, 67%, 50%, 1);\n --md-code-hl-special-color: hsla(340, 83%, 47%, 1);\n --md-code-hl-function-color: hsla(291, 45%, 50%, 1);\n --md-code-hl-constant-color: hsla(250, 63%, 60%, 1);\n --md-code-hl-keyword-color: hsla(219, 54%, 51%, 1);\n --md-code-hl-string-color: hsla(150, 63%, 30%, 1);\n --md-code-hl-name-color: var(--md-code-fg-color);\n --md-code-hl-operator-color: var(--md-default-fg-color--light);\n --md-code-hl-punctuation-color: var(--md-default-fg-color--light);\n --md-code-hl-comment-color: var(--md-default-fg-color--light);\n --md-code-hl-generic-color: var(--md-default-fg-color--light);\n --md-code-hl-variable-color: var(--md-default-fg-color--light);\n\n // Typeset color shades\n --md-typeset-color: var(--md-default-fg-color);\n\n // Typeset `a` color shades\n --md-typeset-a-color: var(--md-primary-fg-color);\n\n // Typeset `mark` color shades\n --md-typeset-mark-color: hsla(#{hex2hsl($clr-yellow-a200)}, 0.5);\n\n // Typeset `del` and `ins` color shades\n --md-typeset-del-color: hsla(6, 90%, 60%, 0.15);\n --md-typeset-ins-color: hsla(150, 90%, 44%, 0.15);\n\n // Typeset `kbd` color shades\n --md-typeset-kbd-color: hsla(0, 0%, 98%, 1);\n --md-typeset-kbd-accent-color: hsla(0, 100%, 100%, 1);\n --md-typeset-kbd-border-color: hsla(0, 0%, 72%, 1);\n\n // Admonition color shades\n --md-admonition-fg-color: var(--md-default-fg-color);\n --md-admonition-bg-color: var(--md-default-bg-color);\n\n // Footer color shades\n --md-footer-fg-color: hsla(0, 0%, 100%, 1);\n --md-footer-fg-color--light: hsla(0, 0%, 100%, 0.7);\n --md-footer-fg-color--lighter: hsla(0, 0%, 100%, 0.3);\n --md-footer-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-footer-bg-color--dark: hsla(0, 0%, 0%, 0.32);\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon\n.md-icon {\n\n // SVG defaults\n svg {\n display: block;\n width: px2rem(24px);\n height: px2rem(24px);\n fill: currentColor;\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules: font definitions\n// ----------------------------------------------------------------------------\n\n// Enable font-smoothing in Webkit and FF\nbody {\n -webkit-font-smoothing: antialiased;\n -moz-osx-font-smoothing: grayscale;\n}\n\n// Define default fonts\nbody,\ninput {\n color: var(--md-typeset-color);\n font-feature-settings: \"kern\", \"liga\";\n font-family:\n var(--md-text-font-family, _),\n -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;\n}\n\n// Define monospaced fonts\ncode,\npre,\nkbd {\n color: var(--md-typeset-color);\n font-feature-settings: \"kern\";\n font-family:\n var(--md-code-font-family, _),\n SFMono-Regular, Consolas, Menlo, monospace;\n}\n\n// ----------------------------------------------------------------------------\n// Rules: typesetted content\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n --md-typeset-table--ascending: svg-load(\"material/arrow-down.svg\");\n --md-typeset-table--descending: svg-load(\"material/arrow-up.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Content that is typeset - if possible, all margins, paddings and font sizes\n// should be set in ems, so nested blocks (e.g. admonitions) render correctly.\n.md-typeset {\n font-size: px2rem(16px);\n line-height: 1.6;\n color-adjust: exact;\n\n // [print]: We'll use a smaller `font-size` for printing, so code examples\n // don't break too early, and `16px` looks too big anyway.\n @media print {\n font-size: px2rem(13.6px);\n }\n\n // Default spacing\n ul,\n ol,\n dl,\n figure,\n blockquote,\n pre {\n margin: 1em 0;\n }\n\n // Headline on level 1\n h1 {\n margin: 0 0 px2em(40px, 32px);\n color: var(--md-default-fg-color--light);\n font-weight: 300;\n font-size: px2em(32px);\n line-height: 1.3;\n letter-spacing: -0.01em;\n }\n\n // Headline on level 2\n h2 {\n margin: px2em(40px, 25px) 0 px2em(16px, 25px);\n font-weight: 300;\n font-size: px2em(25px);\n line-height: 1.4;\n letter-spacing: -0.01em;\n }\n\n // Headline on level 3\n h3 {\n margin: px2em(32px, 20px) 0 px2em(16px, 20px);\n font-weight: 400;\n font-size: px2em(20px);\n line-height: 1.5;\n letter-spacing: -0.01em;\n }\n\n // Headline on level 3 following level 2\n h2 + h3 {\n margin-top: px2em(16px, 20px);\n }\n\n // Headline on level 4\n h4 {\n margin: px2em(16px) 0;\n font-weight: 700;\n letter-spacing: -0.01em;\n }\n\n // Headline on level 5-6\n h5,\n h6 {\n margin: px2em(16px, 12.8px) 0;\n color: var(--md-default-fg-color--light);\n font-weight: 700;\n font-size: px2em(12.8px);\n letter-spacing: -0.01em;\n }\n\n // Headline on level 5\n h5 {\n text-transform: uppercase;\n }\n\n // Horizontal separator\n hr {\n display: flow-root;\n margin: 1.5em 0;\n border-bottom: px2rem(1px) solid var(--md-default-fg-color--lightest);\n }\n\n // Text link\n a {\n color: var(--md-typeset-a-color);\n word-break: break-word;\n\n // Also enable color transition on pseudo elements\n &,\n &::before {\n transition: color 125ms;\n }\n\n // Text link on focus/hover\n &:focus,\n &:hover {\n color: var(--md-accent-fg-color);\n }\n\n // Text link on keyboard focus\n &.focus-visible {\n outline-color: var(--md-accent-fg-color);\n outline-offset: px2rem(4px);\n }\n }\n\n // Code block\n code,\n pre,\n kbd {\n color: var(--md-code-fg-color);\n direction: ltr;\n\n // [print]: Wrap text and hide scollbars\n @media print {\n white-space: pre-wrap;\n }\n }\n\n // Inline code block\n code {\n padding: 0 px2em(4px, 13.6px);\n font-size: px2em(13.6px);\n word-break: break-word;\n background-color: var(--md-code-bg-color);\n border-radius: px2rem(2px);\n box-decoration-break: clone;\n\n // Hide outline for pointer devices\n &:not(.focus-visible) {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n }\n }\n\n // Code block in headline\n h1 code,\n h2 code,\n h3 code,\n h4 code,\n h5 code,\n h6 code {\n margin: initial;\n padding: initial;\n background-color: transparent;\n box-shadow: none;\n }\n\n // Ensure link color in code blocks\n a code {\n color: currentColor;\n }\n\n // Unformatted content\n pre {\n position: relative;\n display: flow-root;\n line-height: 1.4;\n\n // Code block\n > code {\n display: block;\n margin: 0;\n padding: px2em(10.5px, 13.6px) px2em(16px, 13.6px);\n overflow: auto;\n word-break: normal;\n box-shadow: none;\n box-decoration-break: slice;\n touch-action: auto;\n scrollbar-width: thin;\n scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n\n // Code block on hover\n &:hover {\n scrollbar-color: var(--md-accent-fg-color) transparent;\n }\n\n // Webkit scrollbar\n &::-webkit-scrollbar {\n width: px2rem(4px);\n height: px2rem(4px);\n }\n\n // Webkit scrollbar thumb\n &::-webkit-scrollbar-thumb {\n background-color: var(--md-default-fg-color--lighter);\n\n // Webkit scrollbar thumb on hover\n &:hover {\n background-color: var(--md-accent-fg-color);\n }\n }\n }\n }\n\n // [mobile -]: Align with body copy\n @include break-to-device(mobile) {\n\n // Unformatted text\n > pre {\n margin: 1em px2rem(-16px);\n\n // Code block\n code {\n border-radius: 0;\n }\n }\n }\n\n // Keyboard key\n kbd {\n display: inline-block;\n padding: 0 px2em(8px, 12px);\n color: var(--md-default-fg-color);\n font-size: px2em(12px);\n vertical-align: text-top;\n word-break: break-word;\n background-color: var(--md-typeset-kbd-color);\n border-radius: px2rem(2px);\n box-shadow:\n 0 px2rem(2px) 0 px2rem(1px) var(--md-typeset-kbd-border-color),\n 0 px2rem(2px) 0 var(--md-typeset-kbd-border-color),\n 0 px2rem(-2px) px2rem(4px) var(--md-typeset-kbd-accent-color) inset;\n }\n\n // Text highlighting marker\n mark {\n color: inherit;\n word-break: break-word;\n background-color: var(--md-typeset-mark-color);\n box-decoration-break: clone;\n }\n\n // Abbreviation\n abbr {\n text-decoration: none;\n border-bottom: px2rem(1px) dotted var(--md-default-fg-color--light);\n cursor: help;\n\n // Show tooltip for touch devices\n @media (hover: none) {\n position: relative;\n\n // Tooltip\n &[title]:focus::after,\n &[title]:hover::after {\n @include z-depth(2);\n\n position: absolute;\n left: 0;\n display: inline-block;\n width: auto;\n min-width: max-content;\n max-width: 80%;\n margin-top: 2em;\n padding: px2rem(4px) px2rem(6px);\n color: var(--md-default-bg-color);\n font-size: px2rem(14px);\n background-color: var(--md-default-fg-color);\n border-radius: px2rem(2px);\n content: attr(title);\n }\n }\n }\n\n // Small text\n small {\n opacity: 0.75;\n }\n\n // Superscript and subscript\n sup,\n sub {\n margin-left: px2em(1px, 12.8px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2em(1px, 12.8px);\n margin-left: initial;\n }\n }\n\n // Blockquotes, possibly nested\n blockquote {\n display: flow-root;\n padding-left: px2rem(12px);\n color: var(--md-default-fg-color--light);\n border-left: px2rem(4px) solid var(--md-default-fg-color--lighter);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(12px);\n padding-left: initial;\n border-right: px2rem(4px) solid var(--md-default-fg-color--lighter);\n border-left: initial;\n }\n }\n\n // Unordered list\n ul {\n list-style-type: disc;\n }\n\n // Unordered and ordered list\n ul,\n ol {\n display: flow-root;\n margin-left: px2em(10px);\n padding: 0;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2em(10px);\n margin-left: initial;\n }\n\n // Nested ordered list\n ol {\n list-style-type: lower-alpha;\n\n // Triply nested ordered list\n ol {\n list-style-type: lower-roman;\n }\n }\n\n // List element\n li {\n margin-bottom: 0.5em;\n margin-left: px2em(20px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2em(20px);\n margin-left: initial;\n }\n\n // Adjust spacing\n p,\n blockquote {\n margin: 0.5em 0;\n }\n\n // Adjust spacing on last child\n &:last-child {\n margin-bottom: 0;\n }\n\n // Nested list\n ul,\n ol {\n margin: 0.5em 0 0.5em px2em(10px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2em(10px);\n margin-left: initial;\n }\n }\n }\n }\n\n // Definition list\n dd {\n margin: 1em 0 1.5em px2em(30px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2em(30px);\n margin-left: initial;\n }\n }\n\n // Image or icon\n img,\n svg {\n max-width: 100%;\n height: auto;\n\n // Adjust spacing when left-aligned\n &[align=\"left\"] {\n margin: 1em;\n margin-left: 0;\n }\n\n // Adjust spacing when right-aligned\n &[align=\"right\"] {\n margin: 1em;\n margin-right: 0;\n }\n\n // Adjust spacing when sole children\n &[align]:only-child {\n margin-top: 0;\n }\n }\n\n // Figure\n figure {\n display: flow-root;\n width: fit-content;\n max-width: 100%;\n margin: 0 auto;\n text-align: center;\n\n // Figure images\n img {\n display: block;\n }\n }\n\n // Figure caption\n figcaption {\n max-width: px2rem(480px);\n margin: 1em auto 2em;\n font-style: italic;\n }\n\n // Limit width to container\n iframe {\n max-width: 100%;\n }\n\n // Data table\n table:not([class]) {\n display: inline-block;\n max-width: 100%;\n overflow: auto;\n font-size: px2rem(12.8px);\n background-color: var(--md-default-bg-color);\n border-radius: px2rem(2px);\n box-shadow:\n 0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.05),\n 0 0 px2rem(1px) hsla(0, 0%, 0%, 0.1);\n touch-action: auto;\n\n // [print]: Reset display mode so table header wraps when printing\n @media print {\n display: table;\n }\n\n // Due to margin collapse because of the necessary inline-block hack, we\n // cannot increase the bottom margin on the table, so we just increase the\n // top margin on the following element\n + * {\n margin-top: 1.5em;\n }\n\n // Elements in table heading and cell\n th > *,\n td > * {\n\n // Adjust spacing on first child\n &:first-child {\n margin-top: 0;\n }\n\n // Adjust spacing on last child\n &:last-child {\n margin-bottom: 0;\n }\n }\n\n // Table heading and cell\n th:not([align]),\n td:not([align]) {\n text-align: left;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n text-align: right;\n }\n }\n\n // Table heading\n th {\n min-width: px2rem(100px);\n padding: px2em(12px, 12.8px) px2em(16px, 12.8px);\n color: var(--md-default-bg-color);\n vertical-align: top;\n background-color: var(--md-default-fg-color--light);\n\n // Links in table headings\n a {\n color: inherit;\n }\n }\n\n // Table cell\n td {\n padding: px2em(12px, 12.8px) px2em(16px, 12.8px);\n vertical-align: top;\n border-top: px2rem(1px) solid var(--md-default-fg-color--lightest);\n }\n\n // Table row\n tr {\n transition: background-color 125ms;\n\n // Table row on hover\n &:hover {\n background-color: rgba(0, 0, 0, 0.035);\n box-shadow: 0 px2rem(1px) 0 var(--md-default-bg-color) inset;\n }\n\n // Hide border on first table row\n &:first-child td {\n border-top: 0;\n }\n }\n\n // Text link in table\n a {\n word-break: normal;\n }\n }\n\n // Sortable table\n table th[role=\"columnheader\"] {\n cursor: pointer;\n\n // Sort icon\n &::after {\n display: inline-block;\n width: 1.2em;\n height: 1.2em;\n margin-left: 0.5em;\n vertical-align: sub;\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n\n // Sort ascending\n &[aria-sort=\"ascending\"]::after {\n background-color: currentColor;\n mask-image: var(--md-typeset-table--ascending);\n }\n\n // Sort descending\n &[aria-sort=\"descending\"]::after {\n background-color: currentColor;\n mask-image: var(--md-typeset-table--descending);\n }\n }\n\n // Data table scroll wrapper\n &__scrollwrap {\n margin: 1em px2rem(-16px);\n overflow-x: auto;\n touch-action: auto;\n }\n\n // Data table wrapper\n &__table {\n display: inline-block;\n margin-bottom: 0.5em;\n padding: 0 px2rem(16px);\n\n // [print]: Reset display mode so table header wraps when printing\n @media print {\n display: block;\n }\n\n // Data table\n html & table {\n display: table;\n width: 100%;\n margin: 0;\n overflow: hidden;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n///\n/// Device-specific breakpoints\n///\n/// @example\n/// $break-devices: (\n/// mobile: (\n/// portrait: 220px 479px,\n/// landscape: 480px 719px\n/// ),\n/// tablet: (\n/// portrait: 720px 959px,\n/// landscape: 960px 1219px\n/// ),\n/// screen: (\n/// small: 1220px 1599px,\n/// medium: 1600px 1999px,\n/// large: 2000px\n/// )\n/// );\n///\n$break-devices: () !default;\n\n// ----------------------------------------------------------------------------\n// Helpers\n// ----------------------------------------------------------------------------\n\n///\n/// Choose minimum and maximum device widths\n///\n@function break-select-min-max($devices) {\n $min: 1000000;\n $max: 0;\n @each $key, $value in $devices {\n @while type-of($value) == map {\n $value: break-select-min-max($value);\n }\n @if type-of($value) == list {\n @each $number in $value {\n @if type-of($number) == number {\n $min: min($number, $min);\n @if $max {\n $max: max($number, $max);\n }\n } @else {\n @error \"Invalid number: #{$number}\";\n }\n }\n } @else if type-of($value) == number {\n $min: min($value, $min);\n $max: null;\n } @else {\n @error \"Invalid value: #{$value}\";\n }\n }\n @return $min, $max;\n}\n\n///\n/// Select minimum and maximum widths for a device breakpoint\n///\n@function break-select-device($device) {\n $current: $break-devices;\n @for $n from 1 through length($device) {\n @if type-of($current) == map {\n $current: map-get($current, nth($device, $n));\n } @else {\n @error \"Invalid device map: #{$devices}\";\n }\n }\n @if type-of($current) == list or type-of($current) == number {\n $current: (default: $current);\n }\n @return break-select-min-max($current);\n}\n\n// ----------------------------------------------------------------------------\n// Mixins\n// ----------------------------------------------------------------------------\n\n///\n/// A minimum-maximum media query breakpoint\n///\n@mixin break-at($breakpoint) {\n @if type-of($breakpoint) == number {\n @media screen and (min-width: $breakpoint) {\n @content;\n }\n } @else if type-of($breakpoint) == list {\n $min: nth($breakpoint, 1);\n $max: nth($breakpoint, 2);\n @if type-of($min) == number and type-of($max) == number {\n @media screen and (min-width: $min) and (max-width: $max) {\n @content;\n }\n } @else {\n @error \"Invalid breakpoint: #{$breakpoint}\";\n }\n } @else {\n @error \"Invalid breakpoint: #{$breakpoint}\";\n }\n}\n\n///\n/// An orientation media query breakpoint\n///\n@mixin break-at-orientation($breakpoint) {\n @if type-of($breakpoint) == string {\n @media screen and (orientation: $breakpoint) {\n @content;\n }\n } @else {\n @error \"Invalid breakpoint: #{$breakpoint}\";\n }\n}\n\n///\n/// A maximum-aspect-ratio media query breakpoint\n///\n@mixin break-at-ratio($breakpoint) {\n @if type-of($breakpoint) == number {\n @media screen and (max-aspect-ratio: $breakpoint) {\n @content;\n }\n } @else {\n @error \"Invalid breakpoint: #{$breakpoint}\";\n }\n}\n\n///\n/// A minimum-maximum media query device breakpoint\n///\n@mixin break-at-device($device) {\n @if type-of($device) == string {\n $device: $device,;\n }\n @if type-of($device) == list {\n $breakpoint: break-select-device($device);\n @if nth($breakpoint, 2) {\n $min: nth($breakpoint, 1);\n $max: nth($breakpoint, 2);\n\n @media screen and (min-width: $min) and (max-width: $max) {\n @content;\n }\n } @else {\n @error \"Invalid device: #{$device}\";\n }\n } @else {\n @error \"Invalid device: #{$device}\";\n }\n}\n\n///\n/// A minimum media query device breakpoint\n///\n@mixin break-from-device($device) {\n @if type-of($device) == string {\n $device: $device,;\n }\n @if type-of($device) == list {\n $breakpoint: break-select-device($device);\n $min: nth($breakpoint, 1);\n\n @media screen and (min-width: $min) {\n @content;\n }\n } @else {\n @error \"Invalid device: #{$device}\";\n }\n}\n\n///\n/// A maximum media query device breakpoint\n///\n@mixin break-to-device($device) {\n @if type-of($device) == string {\n $device: $device,;\n }\n @if type-of($device) == list {\n $breakpoint: break-select-device($device);\n $max: nth($breakpoint, 2);\n\n @media screen and (max-width: $max) {\n @content;\n }\n } @else {\n @error \"Invalid device: #{$device}\";\n }\n}\n","//\n// Name: Material Shadows\n// Description: Mixins for Material Design Shadows.\n// Version: 3.0.1\n//\n// Author: Denis Malinochkin\n// Git: https://github.com/mrmlnc/material-shadows\n//\n// twitter: @mrmlnc\n//\n// ------------------------------------\n\n\n// Mixins\n// ------------------------------------\n\n@mixin z-depth-transition() {\n transition: box-shadow .28s cubic-bezier(.4, 0, .2, 1);\n}\n\n@mixin z-depth-focus() {\n box-shadow: 0 0 8px rgba(0, 0, 0, .18), 0 8px 16px rgba(0, 0, 0, .36);\n}\n\n@mixin z-depth-2dp() {\n box-shadow: 0 2px 2px 0 rgba(0, 0, 0, .14),\n 0 1px 5px 0 rgba(0, 0, 0, .12),\n 0 3px 1px -2px rgba(0, 0, 0, .2);\n}\n\n@mixin z-depth-3dp() {\n box-shadow: 0 3px 4px 0 rgba(0, 0, 0, .14),\n 0 1px 8px 0 rgba(0, 0, 0, .12),\n 0 3px 3px -2px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-4dp() {\n box-shadow: 0 4px 5px 0 rgba(0, 0, 0, .14),\n 0 1px 10px 0 rgba(0, 0, 0, .12),\n 0 2px 4px -1px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-6dp() {\n box-shadow: 0 6px 10px 0 rgba(0, 0, 0, .14),\n 0 1px 18px 0 rgba(0, 0, 0, .12),\n 0 3px 5px -1px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-8dp() {\n box-shadow: 0 8px 10px 1px rgba(0, 0, 0, .14),\n 0 3px 14px 2px rgba(0, 0, 0, .12),\n 0 5px 5px -3px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-16dp() {\n box-shadow: 0 16px 24px 2px rgba(0, 0, 0, .14),\n 0 6px 30px 5px rgba(0, 0, 0, .12),\n 0 8px 10px -5px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth-24dp() {\n box-shadow: 0 9px 46px 8px rgba(0, 0, 0, .14),\n 0 24px 38px 3px rgba(0, 0, 0, .12),\n 0 11px 15px -7px rgba(0, 0, 0, .4);\n}\n\n@mixin z-depth($dp: 2) {\n @if $dp == 2 {\n @include z-depth-2dp();\n } @else if $dp == 3 {\n @include z-depth-3dp();\n } @else if $dp == 4 {\n @include z-depth-4dp();\n } @else if $dp == 6 {\n @include z-depth-6dp();\n } @else if $dp == 8 {\n @include z-depth-8dp();\n } @else if $dp == 16 {\n @include z-depth-16dp();\n } @else if $dp == 24 {\n @include z-depth-24dp();\n }\n}\n\n\n// Class generator\n// ------------------------------------\n\n@mixin z-depth-classes($transition: false, $focus: false) {\n @if $transition == true {\n &-transition {\n @include z-depth-transition();\n }\n }\n\n @if $focus == true {\n &-focus {\n @include z-depth-focus();\n }\n }\n\n // The available values for the shadow depth\n @each $depth in 2, 3, 4, 6, 8, 16, 24 {\n &-#{$depth}dp {\n @include z-depth($depth);\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules: base grid and containers\n// ----------------------------------------------------------------------------\n\n// Stretch container to viewport and set base `font-size`\nhtml {\n height: 100%;\n overflow-x: hidden;\n // Hack: normally, we would set the base `font-size` to `62.5%`, so we can\n // base all calculations on `10px`, but Chromium and Chrome define a minimal\n // `font-size` of `12px` if the system language is set to Chinese. For this\n // reason we just double the `font-size` and set it to `20px`.\n //\n // See https://github.com/squidfunk/mkdocs-material/issues/911\n font-size: 125%;\n\n // [screen medium +]: Set base `font-size` to `11px`\n @include break-from-device(screen medium) {\n font-size: 137.5%;\n }\n\n // [screen large +]: Set base `font-size` to `12px`\n @include break-from-device(screen large) {\n font-size: 150%;\n }\n}\n\n// Stretch body to container - flexbox is used, so the footer will always be\n// aligned to the bottom of the viewport\nbody {\n position: relative;\n display: flex;\n flex-direction: column;\n width: 100%;\n min-height: 100%;\n // Hack: reset `font-size` to `10px`, so the spacing for all inline elements\n // is correct again. Otherwise the spacing would be based on `20px`.\n font-size: px2rem(10px);\n background-color: var(--md-default-bg-color);\n\n // [print]: Omit flexbox layout due to a Firefox bug (https://mzl.la/39DgR3m)\n @media print {\n display: block;\n }\n\n // Body in locked state\n &[data-md-state=\"lock\"] {\n\n // [tablet portrait -]: Omit scroll bubbling\n @include break-to-device(tablet portrait) {\n position: fixed;\n }\n }\n}\n\n// ----------------------------------------------------------------------------\n\n// Grid container - this class is applied to wrapper elements within the\n// header, content area and footer, and makes sure that their width is limited\n// to `1220px`, and they are rendered centered if the screen is larger.\n.md-grid {\n max-width: px2rem(1220px);\n margin-right: auto;\n margin-left: auto;\n}\n\n// Main container\n.md-container {\n display: flex;\n flex-direction: column;\n flex-grow: 1;\n\n // [print]: Omit flexbox layout due to a Firefox bug (https://mzl.la/39DgR3m)\n @media print {\n display: block;\n }\n}\n\n// Main area - stretch to remaining space of container\n.md-main {\n flex-grow: 1;\n\n // Main area wrapper\n &__inner {\n display: flex;\n height: 100%;\n margin-top: px2rem(24px + 6px);\n }\n}\n\n// Add ellipsis in case of overflowing text\n.md-ellipsis {\n overflow: hidden;\n white-space: nowrap;\n text-overflow: ellipsis;\n}\n\n// ----------------------------------------------------------------------------\n// Rules: navigational elements\n// ----------------------------------------------------------------------------\n\n// Toggle - this class is applied to checkbox elements, which are used to\n// implement the CSS-only drawer and navigation, as well as the search\n.md-toggle {\n display: none;\n}\n\n// Option - this class is applied to radio elements, which are used to\n// implement the color palette toggle\n.md-option {\n position: absolute;\n width: 0;\n height: 0;\n opacity: 0;\n\n // Option label for checked radio button\n &:checked + label:not([hidden]) {\n display: block;\n }\n\n // Show outline for pointer devices\n &.focus-visible + label {\n outline-style: auto;\n outline-color: var(--md-accent-fg-color);\n }\n}\n\n// Skip link\n.md-skip {\n position: fixed;\n // Hack: if we don't set the negative `z-index`, the skip link will force the\n // creation of new layers when code blocks are near the header on scrolling\n z-index: -1;\n margin: px2rem(10px);\n padding: px2rem(6px) px2rem(10px);\n color: var(--md-default-bg-color);\n font-size: px2rem(12.8px);\n background-color: var(--md-default-fg-color);\n border-radius: px2rem(2px);\n outline-color: var(--md-accent-fg-color);\n transform: translateY(px2rem(8px));\n opacity: 0;\n\n // Show skip link on focus\n &:focus {\n z-index: 10;\n transform: translateY(0);\n opacity: 1;\n transition:\n transform 250ms cubic-bezier(0.4, 0, 0.2, 1),\n opacity 175ms 75ms;\n }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: print styles\n// ----------------------------------------------------------------------------\n\n// Add margins to page\n@page {\n margin: 25mm;\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Announcement bar\n.md-announce {\n overflow: auto;\n background-color: var(--md-footer-bg-color);\n\n // [print]: Hide announcement bar\n @media print {\n display: none;\n }\n\n // Announcement wrapper\n &__inner {\n margin: px2rem(12px) auto;\n padding: 0 px2rem(16px);\n color: var(--md-footer-fg-color);\n font-size: px2rem(14px);\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n --md-clipboard-icon: svg-load(\"material/content-copy.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Button to copy to clipboard\n.md-clipboard {\n position: absolute;\n top: px2em(8px);\n right: px2em(8px);\n z-index: 1;\n width: px2em(24px);\n height: px2em(24px);\n color: var(--md-default-fg-color--lightest);\n border-radius: px2rem(2px);\n outline-color: var(--md-accent-fg-color);\n outline-offset: px2rem(2px);\n cursor: pointer;\n transition: color 250ms;\n\n // [print]: Hide button\n @media print {\n display: none;\n }\n\n // Hide outline for pointer devices\n &:not(.focus-visible) {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n }\n\n // Darken color on code block hover\n :hover > & {\n color: var(--md-default-fg-color--light);\n }\n\n // Button on focus/hover\n &:focus,\n &:hover {\n color: var(--md-accent-fg-color);\n }\n\n // Button icon - the width and height are defined in `em`, so the size is\n // automatically adjusted for nested code blocks (e.g. in admonitions)\n &::after {\n display: block;\n width: px2em(18px);\n height: px2em(18px);\n margin: 0 auto;\n background-color: currentColor;\n mask-image: var(--md-clipboard-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n\n // Inline button\n &--inline {\n cursor: pointer;\n\n // Code block\n code {\n transition:\n color 250ms,\n background-color 250ms;\n }\n\n // Code block on focus/hover\n &:focus code,\n &:hover code {\n color: var(--md-accent-fg-color);\n background-color: var(--md-accent-fg-color--transparent);\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Content area\n.md-content {\n flex-grow: 1;\n // Hack: we must use `overflow: hidden`, so the content area is capped by\n // the dimensions of its parent. Otherwise, long code blocks might lead to\n // a wider content area which will break everything. This, however, induces\n // margin collapse, which will break scroll margins. Adding a large enough\n // scroll padding seems to do the trick, at least in Chrome and Firefox.\n overflow: hidden;\n scroll-padding-top: px2rem(1024px);\n\n // Content wrapper\n &__inner {\n margin: 0 px2rem(16px) px2rem(24px);\n padding-top: px2rem(12px);\n\n // [screen +]: Adjust spacing between content area and sidebars\n @include break-from-device(screen) {\n\n // Sidebar with navigation is visible\n .md-sidebar--primary:not([hidden]) ~ .md-content > & {\n margin-left: px2rem(24px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(24px);\n margin-left: px2rem(16px);\n }\n }\n\n // Sidebar with table of contents is visible\n .md-sidebar--secondary:not([hidden]) ~ .md-content > & {\n margin-right: px2rem(24px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(16px);\n margin-left: px2rem(24px);\n }\n }\n }\n\n // Hack: add pseudo element for spacing, as the overflow of the content\n // container may not be hidden due to an imminent offset error on targets\n &::before {\n display: block;\n height: px2rem(8px);\n content: \"\";\n }\n\n // Adjust spacing on last child\n > :last-child {\n margin-bottom: 0;\n }\n }\n\n // Button inside of the content area - these buttons are meant for actions on\n // a document-level, i.e. linking to related source code files, printing etc.\n &__button {\n float: right;\n margin: px2rem(8px) 0;\n margin-left: px2rem(8px);\n padding: 0;\n\n // [print]: Hide buttons\n @media print {\n display: none;\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n float: left;\n margin-right: px2rem(8px);\n margin-left: initial;\n\n // Flip icon vertically\n svg {\n transform: scaleX(-1);\n }\n }\n\n // Adjust default link color for icons\n .md-typeset & {\n color: var(--md-default-fg-color--lighter);\n }\n\n // Align with body copy located next to icon\n svg {\n display: inline;\n vertical-align: top;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Dialog\n.md-dialog {\n @include z-depth(2);\n\n position: fixed;\n right: px2rem(16px);\n bottom: px2rem(16px);\n left: initial;\n z-index: 2;\n min-width: px2rem(222px);\n padding: px2rem(8px) px2rem(12px);\n background-color: var(--md-default-fg-color);\n border-radius: px2rem(2px);\n transform: translateY(100%);\n opacity: 0;\n transition:\n transform 0ms 400ms,\n opacity 400ms;\n pointer-events: none;\n\n // [print]: Hide dialog\n @media print {\n display: none;\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: initial;\n left: px2rem(16px);\n }\n\n // Dialog in open state\n &[data-md-state=\"open\"] {\n transform: translateY(0);\n opacity: 1;\n transition:\n transform 400ms cubic-bezier(0.075, 0.85, 0.175, 1),\n opacity 400ms;\n pointer-events: initial;\n }\n\n // Dialog wrapper\n &__inner {\n color: var(--md-default-bg-color);\n font-size: px2rem(14px);\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Form button\n .md-button {\n display: inline-block;\n padding: px2em(10px) px2em(32px);\n color: var(--md-primary-fg-color);\n font-weight: 700;\n border: px2rem(2px) solid currentColor;\n border-radius: px2rem(2px);\n transition:\n color 125ms,\n background-color 125ms,\n border-color 125ms;\n\n // Primary button\n &--primary {\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color);\n border-color: var(--md-primary-fg-color);\n }\n\n // Button on focus/hover\n &:focus,\n &:hover {\n color: var(--md-accent-bg-color);\n background-color: var(--md-accent-fg-color);\n border-color: var(--md-accent-fg-color);\n }\n }\n\n // Form input\n .md-input {\n height: px2rem(36px);\n padding: 0 px2rem(12px);\n font-size: px2rem(16px);\n border-radius: px2rem(2px);\n box-shadow:\n 0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.1),\n 0 px2rem(0.5px) px2rem(1px) hsla(0, 0%, 0%, 0.1);\n transition: box-shadow 250ms;\n\n // Input on focus/hover\n &:focus,\n &:hover {\n box-shadow:\n 0 px2rem(8px) px2rem(20px) hsla(0, 0%, 0%, 0.15),\n 0 px2rem(0.5px) px2rem(1px) hsla(0, 0%, 0%, 0.15);\n }\n\n // Stretch to full width\n &--stretch {\n width: 100%;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Header - by default, the header will be sticky and stay always on top of the\n// viewport. If this behavior is not desired, just set `position: static`.\n.md-header {\n position: sticky;\n top: 0;\n right: 0;\n left: 0;\n z-index: 2;\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color);\n // Hack: reduce jitter by adding a transparent box shadow of the same size\n // so the size of the layer doesn't change during animation\n box-shadow:\n 0 0 px2rem(4px) rgba(0, 0, 0, 0),\n 0 px2rem(4px) px2rem(8px) rgba(0, 0, 0, 0);\n\n // [print]: Hide header\n @media print {\n display: none;\n }\n\n // Header in shadow state, i.e. shadow is visible\n &[data-md-state=\"shadow\"] {\n box-shadow:\n 0 0 px2rem(4px) rgba(0, 0, 0, 0.1),\n 0 px2rem(4px) px2rem(8px) rgba(0, 0, 0, 0.2);\n transition:\n transform 250ms cubic-bezier(0.1, 0.7, 0.1, 1),\n box-shadow 250ms;\n }\n\n // Header in hidden state, i.e. moved out of sight\n &[data-md-state=\"hidden\"] {\n transform: translateY(-100%);\n transition:\n transform 250ms cubic-bezier(0.8, 0, 0.6, 1),\n box-shadow 250ms;\n }\n\n // Header wrapper\n &__inner {\n display: flex;\n align-items: center;\n padding: 0 px2rem(4px);\n }\n\n // Header button\n &__button {\n position: relative;\n z-index: 1;\n margin: px2rem(4px);\n padding: px2rem(8px);\n color: currentColor;\n vertical-align: middle;\n outline-color: var(--md-accent-fg-color);\n cursor: pointer;\n transition: opacity 250ms;\n\n // Button on hover\n &:hover {\n opacity: 0.7;\n }\n\n // Header button is visible\n &:not([hidden]) {\n display: inline-block;\n }\n\n // Hide outline for pointer devices\n &:not(.focus-visible) {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n }\n\n // Button with logo, pointing to `config.site_url`\n &.md-logo {\n margin: px2rem(4px);\n padding: px2rem(8px);\n\n // [tablet -]: Hide button\n @include break-to-device(tablet) {\n display: none;\n }\n\n // Image or icon\n img,\n svg {\n display: block;\n width: px2rem(24px);\n height: px2rem(24px);\n fill: currentColor;\n }\n }\n\n // Button for search\n &[for=\"__search\"] {\n\n // [tablet landscape +]: Hide button\n @include break-from-device(tablet landscape) {\n display: none;\n }\n\n // [no-js]: Hide button\n .no-js & {\n display: none;\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n\n // Flip icon vertically\n svg {\n transform: scaleX(-1);\n }\n }\n }\n\n // Button for drawer\n &[for=\"__drawer\"] {\n\n // [screen +]: Hide button\n @include break-from-device(screen) {\n display: none;\n }\n }\n }\n\n // Header topic\n &__topic {\n position: absolute;\n display: flex;\n max-width: 100%;\n transition:\n transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n opacity 150ms;\n\n // Second header topic - title of the current page\n & + & {\n z-index: -1;\n transform: translateX(px2rem(25px));\n opacity: 0;\n transition:\n transform 400ms cubic-bezier(1, 0.7, 0.1, 0.1),\n opacity 150ms;\n pointer-events: none;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n transform: translateX(px2rem(-25px));\n }\n }\n }\n\n // Header title\n &__title {\n flex-grow: 1;\n height: px2rem(48px);\n margin-right: px2rem(8px);\n margin-left: px2rem(20px);\n font-size: px2rem(18px);\n line-height: px2rem(48px);\n\n // Header title in active state, i.e. page title is visible\n &[data-md-state=\"active\"] .md-header__topic {\n z-index: -1;\n transform: translateX(px2rem(-25px));\n opacity: 0;\n transition:\n transform 400ms cubic-bezier(1, 0.7, 0.1, 0.1),\n opacity 150ms;\n pointer-events: none;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n transform: translateX(px2rem(25px));\n }\n\n // Second header topic - title of the current page\n + .md-header__topic {\n z-index: 0;\n transform: translateX(0);\n opacity: 1;\n transition:\n transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n opacity 150ms;\n pointer-events: initial;\n }\n }\n\n // Add ellipsis in case of overflowing text\n > .md-header__ellipsis {\n position: relative;\n width: 100%;\n height: 100%;\n }\n }\n\n // Header option\n &__option {\n display: flex;\n flex-shrink: 0;\n max-width: 100%;\n white-space: nowrap;\n transition:\n max-width 0ms 250ms,\n opacity 250ms 250ms;\n\n // Hide toggle when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n max-width: 0;\n opacity: 0;\n transition:\n max-width 0ms,\n opacity 0ms;\n }\n }\n\n // Repository information container\n &__source {\n display: none;\n\n // [tablet landscape +]: Show repository information\n @include break-from-device(tablet landscape) {\n display: block;\n width: px2rem(234px);\n max-width: px2rem(234px);\n margin-left: px2rem(20px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(20px);\n margin-left: initial;\n }\n }\n\n // [screen +]: Adjust spacing of search bar\n @include break-from-device(screen) {\n margin-left: px2rem(28px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(28px);\n }\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Footer\n.md-footer {\n color: var(--md-footer-fg-color);\n background-color: var(--md-footer-bg-color);\n\n // [print]: Hide footer\n @media print {\n display: none;\n }\n\n // Footer wrapper\n &__inner {\n padding: px2rem(4px);\n overflow: auto;\n }\n\n // Footer link to previous and next page\n &__link {\n display: flex;\n padding-top: px2rem(28px);\n padding-bottom: px2rem(8px);\n outline-color: var(--md-accent-fg-color);\n transition: opacity 250ms;\n\n // [tablet +]: Adjust width to 50/50\n @include break-from-device(tablet) {\n width: 50%;\n }\n\n // Footer link on focus/hover\n &:focus,\n &:hover {\n opacity: 0.7;\n }\n\n // Footer link to previous page\n &--prev {\n float: left;\n\n // [mobile -]: Adjust width to 25/75 and hide title\n @include break-to-device(mobile) {\n width: 25%;\n\n // Hide footer title\n .md-footer__title {\n display: none;\n }\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n float: right;\n\n // Flip icon vertically\n svg {\n transform: scaleX(-1);\n }\n }\n }\n\n // Footer link to next page\n &--next {\n float: right;\n text-align: right;\n\n // [mobile -]: Adjust width to 25/75\n @include break-to-device(mobile) {\n width: 75%;\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n float: left;\n text-align: left;\n\n // Flip icon vertically\n svg {\n transform: scaleX(-1);\n }\n }\n }\n }\n\n // Footer title\n &__title {\n position: relative;\n flex-grow: 1;\n max-width: calc(100% - #{px2rem(48px)});\n padding: 0 px2rem(20px);\n font-size: px2rem(18px);\n line-height: px2rem(48px);\n }\n\n // Footer link button\n &__button {\n margin: px2rem(4px);\n padding: px2rem(8px);\n }\n\n // Footer link direction (i.e. prev and next)\n &__direction {\n position: absolute;\n right: 0;\n left: 0;\n margin-top: px2rem(-20px);\n padding: 0 px2rem(20px);\n font-size: px2rem(12.8px);\n opacity: 0.7;\n }\n}\n\n// Footer metadata\n.md-footer-meta {\n background-color: var(--md-footer-bg-color--dark);\n\n // Footer metadata wrapper\n &__inner {\n display: flex;\n flex-wrap: wrap;\n justify-content: space-between;\n padding: px2rem(4px);\n }\n\n // Lighten color for non-hovered text links\n html &.md-typeset a {\n color: var(--md-footer-fg-color--light);\n\n // Text link on focus/hover\n &:focus,\n &:hover {\n color: var(--md-footer-fg-color);\n }\n }\n}\n\n// Footer copyright and theme information\n.md-footer-copyright {\n width: 100%;\n margin: auto px2rem(12px);\n padding: px2rem(8px) 0;\n color: var(--md-footer-fg-color--lighter);\n font-size: px2rem(12.8px);\n\n // [tablet portrait +]: Show copyright and social links in one line\n @include break-from-device(tablet portrait) {\n width: auto;\n }\n\n // Footer copyright highlight - this is the upper part of the copyright and\n // theme information, which will include a darker color than the theme link\n &__highlight {\n color: var(--md-footer-fg-color--light);\n }\n}\n\n// Footer social links\n.md-footer-social {\n margin: 0 px2rem(8px);\n padding: px2rem(4px) 0 px2rem(12px);\n\n // [tablet portrait +]: Show copyright and social links in one line\n @include break-from-device(tablet portrait) {\n padding: px2rem(12px) 0;\n }\n\n // Footer social link\n &__link {\n display: inline-block;\n width: px2rem(32px);\n height: px2rem(32px);\n text-align: center;\n\n // Adjust line-height to match height for correct alignment\n &::before {\n line-height: 1.9;\n }\n\n // Fill icon with current color\n svg {\n max-height: px2rem(16px);\n vertical-align: -25%;\n fill: currentColor;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n --md-nav-icon--prev: svg-load(\"material/arrow-left.svg\");\n --md-nav-icon--next: svg-load(\"material/chevron-right.svg\");\n --md-toc-icon: svg-load(\"material/table-of-contents.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Navigation\n.md-nav {\n font-size: px2rem(14px);\n line-height: 1.3;\n\n // Navigation title\n &__title {\n display: block;\n padding: 0 px2rem(12px);\n overflow: hidden;\n font-weight: 700;\n text-overflow: ellipsis;\n\n // Navigaton button\n .md-nav__button {\n display: none;\n\n // Stretch images based on height, as it's the smaller dimension\n img {\n width: auto;\n height: 100%;\n }\n\n // Button with logo, pointing to `config.site_url`\n &.md-logo {\n\n // Image or icon\n img,\n svg {\n display: block;\n width: px2rem(48px);\n height: px2rem(48px);\n fill: currentColor;\n }\n }\n }\n }\n\n // Navigation list\n &__list {\n margin: 0;\n padding: 0;\n list-style: none;\n }\n\n // Navigation item\n &__item {\n padding: 0 px2rem(12px);\n\n // Navigation item on level 2\n & & {\n padding-right: 0;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(12px);\n padding-left: 0;\n }\n }\n }\n\n // Navigation link\n &__link {\n display: block;\n margin-top: 0.625em;\n overflow: hidden;\n text-overflow: ellipsis;\n cursor: pointer;\n transition: color 125ms;\n scroll-snap-align: start;\n\n // Link in blurred state\n &[data-md-state=\"blur\"] {\n color: var(--md-default-fg-color--light);\n }\n\n // Active link\n .md-nav__item &--active {\n color: var(--md-typeset-a-color);\n }\n\n // Navigation link in nested list\n .md-nav__item--nested > & {\n color: inherit;\n }\n\n // Navigation link on focus/hover\n &:focus,\n &:hover {\n color: var(--md-accent-fg-color);\n }\n\n // Navigation link on keyboard focus\n &.focus-visible {\n outline-color: var(--md-accent-fg-color);\n outline-offset: px2rem(4px);\n }\n\n // Navigation link to table of contents\n .md-nav--primary &[for=\"__toc\"] {\n display: none;\n\n // Table of contents icon\n .md-icon::after {\n display: block;\n width: 100%;\n height: 100%;\n mask-image: var(--md-toc-icon);\n background-color: currentColor;\n }\n\n // Hide table of contents\n ~ .md-nav {\n display: none;\n }\n }\n }\n\n // Repository information container\n &__source {\n display: none;\n }\n\n // [tablet -]: Layered navigation\n @include break-to-device(tablet) {\n\n // Primary and nested navigation\n &--primary,\n &--primary & {\n position: absolute;\n top: 0;\n right: 0;\n left: 0;\n z-index: 1;\n display: flex;\n flex-direction: column;\n height: 100%;\n background-color: var(--md-default-bg-color);\n }\n\n // Primary navigation\n &--primary {\n\n // Navigation title and item\n .md-nav__title,\n .md-nav__item {\n font-size: px2rem(16px);\n line-height: 1.5;\n }\n\n // Navigation title\n .md-nav__title {\n position: relative;\n height: px2rem(112px);\n padding: px2rem(60px) px2rem(16px) px2rem(4px);\n color: var(--md-default-fg-color--light);\n font-weight: 400;\n line-height: px2rem(48px);\n white-space: nowrap;\n background-color: var(--md-default-fg-color--lightest);\n cursor: pointer;\n\n // Navigation icon\n .md-nav__icon {\n position: absolute;\n top: px2rem(8px);\n left: px2rem(8px);\n display: block;\n width: px2rem(24px);\n height: px2rem(24px);\n margin: px2rem(4px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: px2rem(8px);\n left: initial;\n }\n\n // Navigation icon in link to previous level\n &::after {\n display: block;\n width: 100%;\n height: 100%;\n background-color: currentColor;\n mask-image: var(--md-nav-icon--prev);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n }\n\n // Navigation list\n ~ .md-nav__list {\n overflow-y: auto;\n background-color: var(--md-default-bg-color);\n box-shadow:\n 0 px2rem(1px) 0 var(--md-default-fg-color--lightest) inset;\n scroll-snap-type: y mandatory;\n touch-action: pan-y;\n\n // Omit border on first child\n > :first-child {\n border-top: 0;\n }\n }\n\n // Top-level navigation title\n &[for=\"__drawer\"] {\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color);\n }\n\n // Button with logo, pointing to `config.site_url`\n .md-logo {\n position: absolute;\n top: px2rem(4px);\n left: px2rem(4px);\n display: block;\n margin: px2rem(4px);\n padding: px2rem(8px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: px2rem(4px);\n left: initial;\n }\n }\n }\n\n // Navigation list\n .md-nav__list {\n flex: 1;\n }\n\n // Navigation item\n .md-nav__item {\n padding: 0;\n border-top: px2rem(1px) solid var(--md-default-fg-color--lightest);\n\n // Navigation link in nested navigation\n &--nested > .md-nav__link {\n padding-right: px2rem(48px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(16px);\n padding-left: px2rem(48px);\n }\n }\n\n // Navigation link in active navigation\n &--active > .md-nav__link {\n color: var(--md-typeset-a-color);\n\n // Navigation link on focus/hover\n &:focus,\n &:hover {\n color: var(--md-accent-fg-color);\n }\n }\n }\n\n // Navigation link\n .md-nav__link {\n position: relative;\n margin-top: 0;\n padding: px2rem(12px) px2rem(16px);\n\n // Navigation icon\n .md-nav__icon {\n position: absolute;\n top: 50%;\n right: px2rem(12px);\n width: px2rem(24px);\n height: px2rem(24px);\n margin-top: px2rem(-12px);\n color: inherit;\n font-size: px2rem(24px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: initial;\n left: px2rem(12px);\n }\n\n // Navigation icon in link to next level\n &::after {\n display: block;\n width: 100%;\n height: 100%;\n background-color: currentColor;\n mask-image: var(--md-nav-icon--next);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n }\n }\n\n // Flip icon vertically\n .md-nav__icon {\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] &::after {\n transform: scale(-1);\n }\n }\n\n // Table of contents contained in primary navigation\n .md-nav--secondary {\n\n // Navigation link - omit unnecessary layering\n .md-nav__link {\n position: static;\n }\n\n // Navigation on level 2-6\n .md-nav {\n position: static;\n background-color: transparent;\n\n // Navigation link on level 3\n .md-nav__link {\n padding-left: px2rem(28px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(28px);\n padding-left: initial;\n }\n }\n\n // Navigation link on level 4\n .md-nav .md-nav__link {\n padding-left: px2rem(40px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(40px);\n padding-left: initial;\n }\n }\n\n // Navigation link on level 5\n .md-nav .md-nav .md-nav__link {\n padding-left: px2rem(52px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(52px);\n padding-left: initial;\n }\n }\n\n // Navigation link on level 6\n .md-nav .md-nav .md-nav .md-nav__link {\n padding-left: px2rem(64px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(64px);\n padding-left: initial;\n }\n }\n }\n }\n }\n\n // Table of contents\n &--secondary {\n background-color: transparent;\n }\n\n // Toggle for nested navigation\n &__toggle ~ & {\n display: flex;\n transform: translateX(100%);\n opacity: 0;\n transition:\n transform 250ms cubic-bezier(0.8, 0, 0.6, 1),\n opacity 125ms 50ms;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n transform: translateX(-100%);\n }\n }\n\n // Show nested navigation when toggle is active\n &__toggle:checked ~ & {\n transform: translateX(0);\n opacity: 1;\n transition:\n transform 250ms cubic-bezier(0.4, 0, 0.2, 1),\n opacity 125ms 125ms;\n\n // Navigation list\n > .md-nav__list {\n // Hack: promote to own layer to reduce jitter\n backface-visibility: hidden;\n }\n }\n }\n\n // [tablet portrait -]: Layered navigation with table of contents\n @include break-to-device(tablet portrait) {\n\n // Show link to table of contents\n &--primary &__link[for=\"__toc\"] {\n display: block;\n padding-right: px2rem(48px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(16px);\n padding-left: px2rem(48px);\n }\n\n // Show table of contents icon\n .md-icon::after {\n content: \"\";\n }\n\n // Hide navigation link to current page\n + .md-nav__link {\n display: none;\n }\n\n // Show table of contents\n ~ .md-nav {\n display: flex;\n }\n }\n\n // Repository information container\n &__source {\n display: block;\n padding: 0 px2rem(4px);\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color--dark);\n }\n }\n\n // [tablet landscape]: Layered navigation with table of contents\n @include break-at-device(tablet landscape) {\n\n // Show link to integrated table of contents\n &--integrated &__link[for=\"__toc\"] {\n display: block;\n padding-right: px2rem(48px);\n scroll-snap-align: initial;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(16px);\n padding-left: px2rem(48px);\n }\n\n // Show table of contents icon\n .md-icon::after {\n content: \"\";\n }\n\n // Hide navigation link to current page\n + .md-nav__link {\n display: none;\n }\n\n // Show table of contents\n ~ .md-nav {\n display: flex;\n }\n }\n }\n\n // [tablet landscape +]: Tree-like table of contents\n @include break-from-device(tablet landscape) {\n\n // Navigation title\n &--secondary &__title {\n\n // Adjust snapping behavior\n &[for=\"__toc\"] {\n scroll-snap-align: start;\n }\n\n // Hide navigation icon\n .md-nav__icon {\n display: none;\n }\n }\n }\n\n // [screen +]: Tree-like navigation\n @include break-from-device(screen) {\n transition: max-height 250ms cubic-bezier(0.86, 0, 0.07, 1);\n\n // Navigation title\n &--primary &__title {\n\n // Adjust snapping behavior\n &[for=\"__drawer\"] {\n scroll-snap-align: start;\n }\n\n // Hide navigation icon\n .md-nav__icon {\n display: none;\n }\n }\n\n // Hide toggle for nested navigation\n &__toggle ~ & {\n display: none;\n }\n\n // Show nested navigation when toggle is active or indeterminate\n &__toggle:checked ~ &,\n &__toggle:indeterminate ~ & {\n display: block;\n }\n\n // Hide navigation title in nested navigation\n &__item--nested > & > &__title {\n display: none;\n }\n\n // Navigation section\n &__item--section {\n display: block;\n margin: 1.25em 0;\n\n // Adjust spacing on last child\n &:last-child {\n margin-bottom: 0;\n }\n\n // Hide navigation link, as sections are always expanded\n > .md-nav__link {\n display: none;\n }\n\n // Navigation\n > .md-nav {\n display: block;\n\n // Navigation title\n > .md-nav__title {\n display: block;\n padding: 0;\n pointer-events: none;\n scroll-snap-align: start;\n }\n\n // Adjust spacing on next level item\n > .md-nav__list > .md-nav__item {\n padding: 0;\n }\n }\n }\n\n // Navigation icon\n &__icon {\n float: right;\n width: px2rem(18px);\n height: px2rem(18px);\n transition: transform 250ms;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n float: left;\n transform: rotate(180deg);\n }\n\n // Navigation icon content\n &::after {\n display: inline-block;\n width: 100%;\n height: 100%;\n vertical-align: px2rem(-2px);\n background-color: currentColor;\n mask-image: var(--md-nav-icon--next);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n\n // Navigation icon - rotate icon when toggle is active or indeterminate\n .md-nav__item--nested .md-nav__toggle:checked ~ .md-nav__link &,\n .md-nav__item--nested .md-nav__toggle:indeterminate ~ .md-nav__link & {\n transform: rotate(90deg);\n }\n }\n\n // Modifier for when navigation tabs are rendered\n &--lifted {\n\n // Hide nested level 0 items and site title\n > .md-nav__list > .md-nav__item--nested,\n > .md-nav__title {\n display: none;\n }\n\n // Hide level 0 items\n > .md-nav__list > .md-nav__item {\n display: none;\n\n // Active parent navigation item\n &--active {\n display: block;\n padding: 0;\n\n // Hide nested links\n > .md-nav__link {\n display: none;\n }\n\n // Show title and adjust spacing\n > .md-nav > .md-nav__title {\n display: block;\n padding: 0 px2rem(12px);\n pointer-events: none;\n scroll-snap-align: start;\n }\n }\n }\n\n // Hack: Always show active navigation tab on breakpoint screen, despite\n // of checkbox being checked or not. Fixes #1655.\n .md-nav[data-md-level=\"1\"] {\n display: block;\n\n // Adjust spacing for level 1 items\n > .md-nav__list > .md-nav__item {\n padding-right: px2rem(12px);\n }\n }\n }\n\n // Modifier for when table of contents is rendered in primary navigation\n &--integrated &__link[for=\"__toc\"] ~ .md-nav {\n display: block;\n margin-bottom: 1.25em;\n border-left: px2rem(1px) solid var(--md-primary-fg-color);\n\n // Hide navigation title\n > .md-nav__title {\n display: none;\n }\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n --md-search-result-icon: svg-load(\"material/file-search-outline.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Search\n.md-search {\n position: relative;\n\n // [tablet landscape +]: Header-embedded search\n @include break-from-device(tablet landscape) {\n padding: px2rem(4px) 0;\n }\n\n // [no-js]: Hide search\n .no-js & {\n display: none;\n }\n\n // Search overlay\n &__overlay {\n z-index: 1;\n opacity: 0;\n\n // [tablet portrait -]: Search modal\n @include break-to-device(tablet portrait) {\n position: absolute;\n top: px2rem(4px);\n left: px2rem(-44px);\n width: px2rem(40px);\n height: px2rem(40px);\n overflow: hidden;\n background-color: var(--md-default-bg-color);\n border-radius: px2rem(20px);\n transform-origin: center;\n transition:\n transform 300ms 100ms,\n opacity 200ms 200ms;\n pointer-events: none;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: px2rem(-44px);\n left: initial;\n }\n\n // Show overlay when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n opacity: 1;\n transition:\n transform 400ms,\n opacity 100ms;\n }\n }\n\n // [tablet landscape +]: Header-embedded search\n @include break-from-device(tablet landscape) {\n position: fixed;\n top: 0;\n left: 0;\n width: 0;\n height: 0;\n background-color: hsla(0, 0%, 0%, 0.54);\n cursor: pointer;\n transition:\n width 0ms 250ms,\n height 0ms 250ms,\n opacity 250ms;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: 0;\n left: initial;\n }\n\n // Show overlay when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n width: 100%;\n // Hack: when the header is translated upon scrolling, a new layer is\n // induced, which means that the height will now refer to the height of\n // the header, albeit positioning is fixed. This should be mitigated\n // in all cases when setting the height to 2x the viewport.\n height: 200vh;\n opacity: 1;\n transition:\n width 0ms,\n height 0ms,\n opacity 250ms;\n }\n }\n\n // Adjust appearance when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n\n // [mobile portrait -]: Scale up 45 times\n @include break-to-device(mobile portrait) {\n transform: scale(45);\n }\n\n // [mobile landscape]: Scale up 60 times\n @include break-at-device(mobile landscape) {\n transform: scale(60);\n }\n\n // [tablet portrait]: Scale up 75 times\n @include break-at-device(tablet portrait) {\n transform: scale(75);\n }\n }\n }\n\n // Search wrapper\n &__inner {\n // Hack: promote to own layer to reduce jitter\n backface-visibility: hidden;\n\n // [tablet portrait -]: Search modal\n @include break-to-device(tablet portrait) {\n position: fixed;\n top: 0;\n left: 100%;\n z-index: 2;\n width: 100%;\n height: 100%;\n transform: translateX(5%);\n opacity: 0;\n transition:\n right 0ms 300ms,\n left 0ms 300ms,\n transform 150ms 150ms cubic-bezier(0.4, 0, 0.2, 1),\n opacity 150ms 150ms;\n\n // Adjust appearance when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n left: 0;\n transform: translateX(0);\n opacity: 1;\n transition:\n right 0ms 0ms,\n left 0ms 0ms,\n transform 150ms 150ms cubic-bezier(0.1, 0.7, 0.1, 1),\n opacity 150ms 150ms;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: 0;\n left: initial;\n }\n }\n\n // Adjust for right-to-left languages\n html [dir=\"rtl\"] & {\n right: 100%;\n left: initial;\n transform: translateX(-5%);\n }\n }\n\n // [tablet landscape +]: Header-embedded search\n @include break-from-device(tablet landscape) {\n position: relative;\n float: right;\n width: px2rem(234px);\n padding: px2rem(2px) 0;\n transition: width 250ms cubic-bezier(0.1, 0.7, 0.1, 1);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n float: left;\n }\n }\n\n // Adjust appearance when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n\n // [tablet landscape]: Omit overlaying header title\n @include break-at-device(tablet landscape) {\n width: px2rem(468px);\n }\n\n // [screen +]: Match width of content area\n @include break-from-device(screen) {\n width: px2rem(688px);\n }\n }\n }\n\n // Search form\n &__form {\n position: relative;\n\n // [tablet landscape +]: Header-embedded search\n @include break-from-device(tablet landscape) {\n border-radius: px2rem(2px);\n }\n }\n\n // Search input\n &__input {\n position: relative;\n z-index: 2;\n padding: 0 px2rem(44px) 0 px2rem(72px);\n text-overflow: ellipsis;\n background-color: var(--md-default-bg-color);\n box-shadow: 0 0 px2rem(12px) transparent;\n transition:\n color 250ms,\n background-color 250ms,\n box-shadow 250ms;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding: 0 px2rem(72px) 0 px2rem(44px);\n }\n\n // Search placeholder\n &::placeholder {\n transition: color 250ms;\n }\n\n // Search icon and placeholder\n ~ .md-search__icon,\n &::placeholder {\n color: var(--md-default-fg-color--light);\n }\n\n // Remove the \"x\" rendered by Internet Explorer\n &::-ms-clear {\n display: none;\n }\n\n // Adjust appearance when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n box-shadow: 0 0 px2rem(12px) hsla(0, 0%, 0%, 0.07);\n }\n\n // [tablet portrait -]: Search modal\n @include break-to-device(tablet portrait) {\n width: 100%;\n height: px2rem(48px);\n font-size: px2rem(18px);\n }\n\n // [tablet landscape +]: Header-embedded search\n @include break-from-device(tablet landscape) {\n width: 100%;\n height: px2rem(36px);\n padding-left: px2rem(44px);\n color: inherit;\n font-size: px2rem(16px);\n background-color: hsla(0, 0%, 0%, 0.26);\n border-radius: px2rem(2px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(44px);\n }\n\n // Search icon\n + .md-search__icon {\n color: var(--md-primary-bg-color);\n }\n\n // Search placeholder\n &::placeholder {\n color: var(--md-primary-bg-color--light);\n }\n\n // Search input on hover\n &:hover {\n background-color: hsla(0, 0%, 100%, 0.12);\n }\n\n // Adjust appearance when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n color: var(--md-default-fg-color);\n text-overflow: clip;\n background-color: var(--md-default-bg-color);\n border-radius: px2rem(2px) px2rem(2px) 0 0;\n\n // Search icon and placeholder\n + .md-search__icon,\n &::placeholder {\n color: var(--md-default-fg-color--light);\n }\n }\n }\n }\n\n // Search icon\n &__icon {\n position: absolute;\n z-index: 2;\n width: px2rem(24px);\n height: px2rem(24px);\n cursor: pointer;\n transition:\n color 250ms,\n opacity 250ms;\n\n // Search icon on hover\n &:hover {\n opacity: 0.7;\n }\n\n // Search focus button\n &[for=\"__search\"] {\n top: px2rem(6px);\n left: px2rem(10px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: px2rem(10px);\n left: initial;\n\n // Flip icon vertically\n svg {\n transform: scaleX(-1);\n }\n }\n\n // [tablet portrait -]: Search modal\n @include break-to-device(tablet portrait) {\n top: px2rem(12px);\n left: px2rem(16px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: px2rem(16px);\n left: initial;\n }\n\n // Hide the magnifying glass\n svg:first-child {\n display: none;\n }\n }\n\n // [tablet landscape +]: Header-embedded search\n @include break-from-device(tablet landscape) {\n pointer-events: none;\n\n // Hide the back arrow\n svg:last-child {\n display: none;\n }\n }\n }\n\n // Search reset button\n &[type=\"reset\"] {\n top: px2rem(6px);\n right: px2rem(10px);\n transform: scale(0.75);\n opacity: 0;\n transition:\n transform 150ms cubic-bezier(0.1, 0.7, 0.1, 1),\n opacity 150ms;\n pointer-events: none;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: initial;\n left: px2rem(10px);\n }\n\n // [tablet portrait -]: Search modal\n @include break-to-device(tablet portrait) {\n top: px2rem(12px);\n right: px2rem(16px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: initial;\n left: px2rem(16px);\n }\n }\n\n // Show reset button when search is active and input non-empty\n [data-md-toggle=\"search\"]:checked ~ .md-header\n .md-search__input:valid ~ & {\n transform: scale(1);\n opacity: 1;\n pointer-events: initial;\n\n // Search focus icon\n &:hover {\n opacity: 0.7;\n }\n }\n }\n }\n\n // Search output\n &__output {\n position: absolute;\n z-index: 1;\n width: 100%;\n overflow: hidden;\n border-radius: 0 0 px2rem(2px) px2rem(2px);\n\n // [tablet portrait -]: Search modal\n @include break-to-device(tablet portrait) {\n top: px2rem(48px);\n bottom: 0;\n }\n\n // [tablet landscape +]: Header-embedded search\n @include break-from-device(tablet landscape) {\n top: px2rem(38px);\n opacity: 0;\n transition: opacity 400ms;\n\n // Show output when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n @include z-depth(6);\n\n opacity: 1;\n }\n }\n }\n\n // Search scroll wrapper\n &__scrollwrap {\n height: 100%;\n overflow-y: auto;\n background-color: var(--md-default-bg-color);\n // Hack: promote to own layer to reduce jitter\n backface-visibility: hidden;\n // Hack: Chrome 88+ has weird overscroll behavior. Overall, scroll snapping\n // seems to be something that is not ready for prime time on some browsers.\n // scroll-snap-type: y mandatory;\n touch-action: pan-y;\n\n // Mitigiate excessive repaints on non-retina devices\n @media (max-resolution: 1dppx) {\n transform: translateZ(0);\n }\n\n // [tablet landscape]: Set fixed width to omit unnecessary reflow\n @include break-at-device(tablet landscape) {\n width: px2rem(468px);\n }\n\n // [screen +]: Set fixed width to omit unnecessary reflow\n @include break-from-device(screen) {\n width: px2rem(688px);\n }\n\n // [tablet landscape +]: Limit height to viewport\n @include break-from-device(tablet landscape) {\n max-height: 0;\n scrollbar-width: thin;\n scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n\n // Show scroll wrapper when search is active\n [data-md-toggle=\"search\"]:checked ~ .md-header & {\n max-height: 75vh;\n }\n\n // Search scroll wrapper on hover\n &:hover {\n scrollbar-color: var(--md-accent-fg-color) transparent;\n }\n\n // Webkit scrollbar\n &::-webkit-scrollbar {\n width: px2rem(4px);\n height: px2rem(4px);\n }\n\n // Webkit scrollbar thumb\n &::-webkit-scrollbar-thumb {\n background-color: var(--md-default-fg-color--lighter);\n\n // Webkit scrollbar thumb on hover\n &:hover {\n background-color: var(--md-accent-fg-color);\n }\n }\n }\n }\n}\n\n// Search result\n.md-search-result {\n color: var(--md-default-fg-color);\n word-break: break-word;\n\n // Search result metadata\n &__meta {\n padding: 0 px2rem(16px);\n color: var(--md-default-fg-color--light);\n font-size: px2rem(12.8px);\n line-height: px2rem(36px);\n background-color: var(--md-default-fg-color--lightest);\n scroll-snap-align: start;\n\n // [tablet landscape +]: Adjust spacing\n @include break-from-device(tablet landscape) {\n padding-left: px2rem(44px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(44px);\n padding-left: initial;\n }\n }\n }\n\n // Search result list\n &__list {\n margin: 0;\n padding: 0;\n list-style: none;\n }\n\n // Search result item\n &__item {\n box-shadow: 0 px2rem(-1px) 0 var(--md-default-fg-color--lightest);\n\n // Omit border on first child\n &:first-child {\n box-shadow: none;\n }\n }\n\n // Search result link\n &__link {\n display: block;\n outline: none;\n transition: background-color 250ms;\n scroll-snap-align: start;\n\n // Search result link on focus/hover\n &:focus,\n &:hover {\n background-color: var(--md-accent-fg-color--transparent);\n }\n\n // Adjust spacing on last child of last link\n &:last-child p:last-child {\n margin-bottom: px2rem(12px);\n }\n }\n\n // Search result more link\n &__more summary {\n display: block;\n padding: px2em(12px) px2rem(16px);\n color: var(--md-typeset-a-color);\n font-size: px2rem(12.8px);\n outline: none;\n cursor: pointer;\n transition:\n color 250ms,\n background-color 250ms;\n scroll-snap-align: start;\n\n // [tablet landscape +]: Adjust spacing\n @include break-from-device(tablet landscape) {\n padding-left: px2rem(44px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(44px);\n padding-left: px2rem(16px);\n }\n }\n\n // Search result more link on focus/hover\n &:focus,\n &:hover {\n color: var(--md-accent-fg-color);\n background-color: var(--md-accent-fg-color--transparent);\n }\n\n // Hide native details marker\n &::marker,\n &::-webkit-details-marker {\n display: none;\n }\n\n // Adjust transparency of less relevant results\n ~ * > * {\n opacity: 0.65;\n }\n }\n\n // Search result article\n &__article {\n position: relative;\n padding: 0 px2rem(16px);\n overflow: hidden;\n\n // [tablet landscape +]: Adjust spacing\n @include break-from-device(tablet landscape) {\n padding-left: px2rem(44px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(44px);\n padding-left: px2rem(16px);\n }\n }\n\n // Search result article document\n &--document {\n\n // Search result title\n .md-search-result__title {\n margin: px2rem(11px) 0;\n font-weight: 400;\n font-size: px2rem(16px);\n line-height: 1.4;\n }\n }\n }\n\n // Search result icon\n &__icon {\n position: absolute;\n left: 0;\n width: px2rem(24px);\n height: px2rem(24px);\n margin: px2rem(10px);\n color: var(--md-default-fg-color--light);\n\n // [tablet portrait -]: Hide icon\n @include break-to-device(tablet portrait) {\n display: none;\n }\n\n // Search result icon content\n &::after {\n display: inline-block;\n width: 100%;\n height: 100%;\n background-color: currentColor;\n mask-image: var(--md-search-result-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: 0;\n left: initial;\n\n // Flip icon vertically\n &::after {\n transform: scaleX(-1);\n }\n }\n }\n\n // Search result title\n &__title {\n margin: 0.5em 0;\n font-weight: 700;\n font-size: px2rem(12.8px);\n line-height: 1.6;\n }\n\n // Search result teaser\n &__teaser {\n display: -webkit-box;\n max-height: px2rem(40px);\n margin: 0.5em 0;\n overflow: hidden;\n color: var(--md-default-fg-color--light);\n font-size: px2rem(12.8px);\n line-height: 1.6;\n text-overflow: ellipsis;\n -webkit-box-orient: vertical;\n -webkit-line-clamp: 2;\n\n // [mobile -]: Adjust number of lines\n @include break-to-device(mobile) {\n max-height: px2rem(60px);\n -webkit-line-clamp: 3;\n }\n\n // [tablet landscape]: Adjust number of lines\n @include break-at-device(tablet landscape) {\n max-height: px2rem(60px);\n -webkit-line-clamp: 3;\n }\n\n // Search term highlighting\n mark {\n text-decoration: underline;\n background-color: transparent;\n }\n }\n\n // Search result terms\n &__terms {\n margin: 0.5em 0;\n font-size: px2rem(12.8px);\n font-style: italic;\n }\n\n // Search term highlighting\n mark {\n color: var(--md-accent-fg-color);\n background-color: transparent;\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Selection\n.md-select {\n position: relative;\n z-index: 1;\n\n // Selection bubble\n &__inner {\n position: absolute;\n top: calc(100% - #{px2rem(4px)});\n left: 50%;\n max-height: 0;\n margin-top: px2rem(4px);\n color: var(--md-default-fg-color);\n background-color: var(--md-default-bg-color);\n border-radius: px2rem(2px);\n box-shadow:\n 0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.1),\n 0 0 px2rem(1px) hsla(0, 0%, 0%, 0.25);\n transform: translate3d(-50%, px2rem(6px), 0);\n opacity: 0;\n transition:\n transform 250ms 375ms,\n opacity 250ms 250ms,\n max-height 0ms 500ms;\n\n // Selection bubble on parent focus/hover\n .md-select:focus-within &,\n .md-select:hover & {\n max-height: px2rem(200px);\n transform: translate3d(-50%, 0, 0);\n opacity: 1;\n transition:\n transform 250ms cubic-bezier(0.1, 0.7, 0.1, 1),\n opacity 250ms,\n max-height 0ms;\n }\n\n // Selection bubble handle\n &::after {\n position: absolute;\n top: 0;\n left: 50%;\n width: 0;\n height: 0;\n margin-top: px2rem(-4px);\n margin-left: px2rem(-4px);\n border: px2rem(4px) solid transparent;\n border-top: 0;\n border-bottom-color: var(--md-default-bg-color);\n content: \"\";\n }\n }\n\n // Selection list\n &__list {\n max-height: inherit;\n margin: 0;\n padding: 0;\n overflow: auto;\n font-size: px2rem(16px);\n list-style-type: none;\n border-radius: px2rem(2px);\n }\n\n // Selection item\n &__item {\n line-height: px2rem(36px);\n }\n\n // Selection link\n &__link {\n display: block;\n width: 100%;\n padding-right: px2rem(24px);\n padding-left: px2rem(12px);\n outline: none;\n cursor: pointer;\n transition:\n background-color 250ms,\n color 250ms;\n scroll-snap-align: start;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(12px);\n padding-left: px2rem(24px);\n }\n\n // Link on focus/hover\n &:focus,\n &:hover {\n color: var(--md-accent-fg-color);\n }\n\n // Link on focus\n &:focus {\n background-color: var(--md-default-fg-color--lightest);\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Sidebar\n.md-sidebar {\n position: sticky;\n top: px2rem(48px);\n flex-shrink: 0;\n align-self: flex-start;\n width: px2rem(242px);\n padding: px2rem(24px) 0;\n\n // [print]: Hide sidebar\n @media print {\n display: none;\n }\n\n // [tablet -]: Show navigation as drawer\n @include break-to-device(tablet) {\n\n // Primary sidebar with navigation\n &--primary {\n position: fixed;\n top: 0;\n left: px2rem(-242px);\n z-index: 3;\n display: block;\n width: px2rem(242px);\n height: 100%;\n background-color: var(--md-default-bg-color);\n transform: translateX(0);\n transition:\n transform 250ms cubic-bezier(0.4, 0, 0.2, 1),\n box-shadow 250ms;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: px2rem(-242px);\n left: initial;\n }\n\n // Show sidebar when drawer is active\n [data-md-toggle=\"drawer\"]:checked ~ .md-container & {\n @include z-depth(8);\n\n transform: translateX(px2rem(242px));\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n transform: translateX(px2rem(-242px));\n }\n }\n\n // Stretch scroll wrapper for primary sidebar\n .md-sidebar__scrollwrap {\n position: absolute;\n top: 0;\n right: 0;\n bottom: 0;\n left: 0;\n margin: 0;\n scroll-snap-type: none;\n overflow: hidden;\n }\n }\n }\n\n // [screen +]: Show navigation as sidebar\n @include break-from-device(screen) {\n height: 0;\n\n // [no-js]: Switch to native sticky behavior\n .no-js & {\n height: auto;\n }\n }\n\n // Secondary sidebar with table of contents\n &--secondary {\n display: none;\n order: 2;\n\n // [tablet landscape +]: Show table of contents as sidebar\n @include break-from-device(tablet landscape) {\n height: 0;\n\n // [no-js]: Switch to native sticky behavior\n .no-js & {\n height: auto;\n }\n\n // Sidebar is visible\n &:not([hidden]) {\n display: block;\n }\n\n // Ensure smooth scrolling on iOS\n .md-sidebar__scrollwrap {\n touch-action: pan-y;\n }\n }\n }\n\n // Sidebar scroll wrapper\n &__scrollwrap {\n margin: 0 px2rem(4px);\n overflow-y: auto;\n // Hack: promote to own layer to reduce jitter\n backface-visibility: hidden;\n // Hack: Chrome 81+ exhibits a strange bug, where it scrolls the container\n // to the bottom if `scroll-snap-type` is set on the initial render. For\n // this reason, we disable scroll snapping until this is resolved (#1667).\n // scroll-snap-type: y mandatory;\n scrollbar-width: thin;\n scrollbar-color: var(--md-default-fg-color--lighter) transparent;\n\n // Sidebar scroll wrapper on hover\n &:hover {\n scrollbar-color: var(--md-accent-fg-color) transparent;\n }\n\n // Webkit scrollbar\n &::-webkit-scrollbar {\n width: px2rem(4px);\n height: px2rem(4px);\n }\n\n // Webkit scrollbar thumb\n &::-webkit-scrollbar-thumb {\n background-color: var(--md-default-fg-color--lighter);\n\n // Webkit scrollbar thumb on hover\n &:hover {\n background-color: var(--md-accent-fg-color);\n }\n }\n }\n}\n\n// [tablet -]: Show overlay on active drawer\n@include break-to-device(tablet) {\n\n // Sidebar overlay\n .md-overlay {\n position: fixed;\n top: 0;\n z-index: 3;\n width: 0;\n height: 0;\n background-color: hsla(0, 0%, 0%, 0.54);\n opacity: 0;\n transition:\n width 0ms 250ms,\n height 0ms 250ms,\n opacity 250ms;\n\n // Show overlay when drawer is active\n [data-md-toggle=\"drawer\"]:checked ~ & {\n width: 100%;\n height: 100%;\n opacity: 1;\n transition:\n width 0ms,\n height 0ms,\n opacity 250ms;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Keyframes\n// ----------------------------------------------------------------------------\n\n// Show repository facts\n@keyframes facts {\n 0% {\n height: 0;\n }\n\n 100% {\n height: px2rem(13px);\n }\n}\n\n// Show repository fact\n@keyframes fact {\n 0% {\n transform: translateY(100%);\n opacity: 0;\n }\n\n 50% {\n opacity: 0;\n }\n\n 100% {\n transform: translateY(0%);\n opacity: 1;\n }\n}\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n --md-source-forks-icon: svg-load(\"octicons/repo-forked-16.svg\");\n --md-source-repositories-icon: svg-load(\"octicons/repo-16.svg\");\n --md-source-stars-icon: svg-load(\"octicons/star-16.svg\");\n --md-source-version-icon: svg-load(\"octicons/tag-16.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Repository information\n.md-source {\n display: block;\n font-size: px2rem(13px);\n line-height: 1.2;\n white-space: nowrap;\n outline-color: var(--md-accent-fg-color);\n // Hack: promote to own layer to reduce jitter\n backface-visibility: hidden;\n transition: opacity 250ms;\n\n // Repository information on hover\n &:hover {\n opacity: 0.7;\n }\n\n // Repository icon\n &__icon {\n display: inline-block;\n width: px2rem(40px);\n height: px2rem(48px);\n vertical-align: middle;\n\n // Align with margin only (as opposed to normal button alignment)\n svg {\n margin-top: px2rem(12px);\n margin-left: px2rem(12px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(12px);\n margin-left: initial;\n }\n }\n\n // Adjust spacing if icon is present\n + .md-source__repository {\n margin-left: px2rem(-40px);\n padding-left: px2rem(40px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(-40px);\n margin-left: initial;\n padding-right: px2rem(40px);\n padding-left: initial;\n }\n }\n }\n\n // Repository name\n &__repository {\n display: inline-block;\n max-width: calc(100% - #{px2rem(24px)});\n margin-left: px2rem(12px);\n overflow: hidden;\n text-overflow: ellipsis;\n vertical-align: middle;\n }\n\n // Repository facts\n &__facts {\n margin: px2rem(2px) 0 0;\n padding: 0;\n overflow: hidden;\n font-size: px2rem(11px);\n list-style-type: none;\n opacity: 0.75;\n\n // Show after the data was loaded\n [data-md-state=\"done\"] & {\n animation: facts 250ms ease-in;\n }\n }\n\n // Repository fact\n &__fact {\n display: inline-block;\n\n // Show after the data was loaded\n [data-md-state=\"done\"] & {\n animation: fact 400ms ease-out;\n }\n\n // Repository fact icon\n &::before {\n display: inline-block;\n width: px2rem(12px);\n height: px2rem(12px);\n margin-right: px2rem(2px);\n vertical-align: text-top;\n background-color: currentColor;\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n }\n\n // Adjust spacing for repository fact icon\n &:nth-child(1n+2)::before {\n margin-left: px2rem(8px);\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: initial;\n margin-left: px2rem(2px);\n\n // Adjust spacing for repository fact icon\n &:nth-child(1n+2)::before {\n margin-right: px2rem(8px);\n margin-left: initial;\n }\n }\n\n // Repository fact: version\n &--version::before {\n mask-image: var(--md-source-version-icon);\n }\n\n // Repository fact: stars\n &--stars::before {\n mask-image: var(--md-source-stars-icon);\n }\n\n // Repository fact: forks\n &--forks::before {\n mask-image: var(--md-source-forks-icon);\n }\n\n // Repository fact: repositories\n &--repositories::before {\n mask-image: var(--md-source-repositories-icon);\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Navigation tabs\n.md-tabs {\n width: 100%;\n overflow: auto;\n color: var(--md-primary-bg-color);\n background-color: var(--md-primary-fg-color);\n\n // [print]: Hide tabs\n @media print {\n display: none;\n }\n\n // [tablet -]: Hide tabs\n @include break-to-device(tablet) {\n display: none;\n }\n\n // Tabs in hidden state, i.e. when scrolling down\n &[data-md-state=\"hidden\"] {\n pointer-events: none;\n }\n\n // Navigation tabs list\n &__list {\n margin: 0;\n margin-left: px2rem(4px);\n padding: 0;\n white-space: nowrap;\n list-style: none;\n contain: content;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(4px);\n margin-left: initial;\n }\n }\n\n // Navigation tabs item\n &__item {\n display: inline-block;\n height: px2rem(48px);\n padding-right: px2rem(12px);\n padding-left: px2rem(12px);\n }\n\n // Navigation tabs link - could be defined as block elements and aligned via\n // line height, but this would imply more repaints when scrolling\n &__link {\n display: block;\n margin-top: px2rem(16px);\n font-size: px2rem(14px);\n outline-color: var(--md-accent-fg-color);\n outline-offset: px2rem(4px);\n // Hack: save a repaint when tabs are appearing on scrolling up\n backface-visibility: hidden;\n opacity: 0.7;\n transition:\n transform 400ms cubic-bezier(0.1, 0.7, 0.1, 1),\n opacity 250ms;\n\n // Active link and link on focus/hover\n &--active,\n &:focus,\n &:hover {\n color: inherit;\n opacity: 1;\n }\n\n // Delay transitions by a small amount\n @for $i from 2 through 16 {\n .md-tabs__item:nth-child(#{$i}) & {\n transition-delay: 20ms * ($i - 1);\n }\n }\n\n // Hide tabs upon scrolling - disable transition to minimizes repaints\n // while scrolling down, while scrolling up seems to be okay\n .md-tabs[data-md-state=\"hidden\"] & {\n transform: translateY(50%);\n opacity: 0;\n transition:\n transform 0ms 100ms,\n opacity 100ms;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Back-to-top button\n.md-top {\n position: sticky;\n bottom: px2rem(8px);\n z-index: 1;\n float: right;\n margin: px2rem(-56px) px2rem(8px) px2rem(8px);\n padding: px2rem(8px);\n color: var(--md-primary-bg-color);\n background: var(--md-primary-fg-color);\n border-radius: 100%;\n outline: none;\n box-shadow:\n 0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.1),\n 0 px2rem(0.5px) px2rem(1px) hsla(0, 0%, 0%, 0.1);\n transform: translateY(0);\n transition:\n opacity 125ms,\n transform 125ms cubic-bezier(0.4, 0, 0.2, 1),\n background-color 125ms;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n float: left;\n }\n\n // Back-to-top button in hidden state\n &[data-md-state=\"hidden\"] {\n transform: translateY(px2rem(-4px));\n opacity: 0;\n pointer-events: none;\n }\n\n // Back-to-top button on focus/hover\n &:focus,\n &:hover {\n background: var(--md-accent-fg-color);\n transform: scale(1.1);\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Keyframes\n// ----------------------------------------------------------------------------\n\n// See https://github.com/squidfunk/mkdocs-material/issues/2429\n@keyframes hoverfix {\n 0% {\n pointer-events: none;\n }\n}\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n --md-version-icon: svg-load(\"fontawesome/solid/caret-down.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Version selection\n.md-version {\n flex-shrink: 0;\n height: px2rem(48px);\n font-size: px2rem(16px);\n\n // Current selection\n &__current {\n position: relative;\n // Hack: in general, we would use `vertical-align` to align the version at\n // the bottom with the title, but since the list uses absolute positioning,\n // this won't work consistently. Furthermore, we would need to use inline\n // positioning to align the links, which looks jagged.\n top: px2rem(1px);\n margin-right: px2rem(8px);\n margin-left: px2rem(28px);\n color: inherit;\n outline: none;\n cursor: pointer;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(28px);\n margin-left: px2rem(8px);\n }\n\n // Version selection icon\n &::after {\n display: inline-block;\n width: px2rem(8px);\n height: px2rem(12px);\n margin-left: px2rem(8px);\n background-color: currentColor;\n mask-image: var(--md-version-icon);\n mask-repeat: no-repeat;\n content: \"\";\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(8px);\n margin-left: initial;\n }\n }\n }\n\n // Version selection list\n &__list {\n position: absolute;\n top: px2rem(3px);\n z-index: 1;\n max-height: 0;\n margin: px2rem(4px) px2rem(16px);\n padding: 0;\n overflow: auto;\n color: var(--md-default-fg-color);\n list-style-type: none;\n background-color: var(--md-default-bg-color);\n border-radius: px2rem(2px);\n box-shadow:\n 0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.1),\n 0 0 px2rem(1px) hsla(0, 0%, 0%, 0.25);\n opacity: 0;\n transition:\n max-height 0ms 500ms,\n opacity 250ms 250ms;\n scroll-snap-type: y mandatory;\n\n // Version selection list on parent focus/hover\n .md-version:focus-within &,\n .md-version:hover & {\n max-height: px2rem(200px);\n opacity: 1;\n transition:\n max-height 0ms,\n opacity 250ms;\n }\n\n // Fix hover on touch devices\n @media (pointer: coarse) {\n\n // Switch off on hover\n .md-version:hover & {\n animation: hoverfix 250ms forwards;\n }\n\n // Enable on focus\n .md-version:focus-within & {\n animation: none;\n }\n }\n }\n\n // Version selection item\n &__item {\n line-height: px2rem(36px);\n }\n\n // Version selection link\n &__link {\n display: block;\n width: 100%;\n padding-right: px2rem(24px);\n padding-left: px2rem(12px);\n white-space: nowrap;\n outline: none;\n cursor: pointer;\n transition:\n color 250ms,\n background-color 250ms;\n scroll-snap-align: start;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding-right: px2rem(12px);\n padding-left: px2rem(24px);\n }\n\n // Link on focus/hover\n &:focus,\n &:hover {\n color: var(--md-accent-fg-color);\n }\n\n // Link on focus\n &:focus {\n background-color: var(--md-default-fg-color--lightest);\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n/// Admonition flavours\n$admonitions: (\n note: pencil $clr-blue-a200,\n abstract summary tldr: text-subject $clr-light-blue-a400,\n info todo: information $clr-cyan-a700,\n tip hint important: fire $clr-teal-a700,\n success check done: check-circle $clr-green-a700,\n question help faq: help-circle $clr-light-green-a700,\n warning caution attention: alert $clr-orange-a400,\n failure fail missing: close-circle $clr-red-a200,\n danger error: flash-circle $clr-red-a400,\n bug: bug $clr-pink-a400,\n example: format-list-numbered $clr-deep-purple-a200,\n quote cite: format-quote-close $clr-grey\n) !default;\n\n// ----------------------------------------------------------------------------\n// Rules: layout\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n @each $names, $props in $admonitions {\n --md-admonition-icon--#{nth($names, 1)}:\n svg-load(\"material/#{nth($props, 1)}.svg\");\n }\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Admonition\n .admonition {\n margin: px2em(20px, 12.8px) 0;\n padding: 0 px2rem(12px);\n overflow: hidden;\n color: var(--md-admonition-fg-color);\n font-size: px2rem(12.8px);\n page-break-inside: avoid;\n background-color: var(--md-admonition-bg-color);\n border-left: px2rem(4px) solid $clr-blue-a200;\n border-radius: px2rem(2px);\n box-shadow:\n 0 px2rem(4px) px2rem(10px) hsla(0, 0%, 0%, 0.05),\n 0 px2rem(0.5px) px2rem(1px) hsla(0, 0%, 0%, 0.05);\n\n // [print]: Omit shadow as it may lead to rendering errors\n @media print {\n box-shadow: none;\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n border-right: px2rem(4px) solid $clr-blue-a200;\n border-left: none;\n }\n\n // Adjust vertical spacing for nested admonitions\n .admonition {\n margin-top: 1em;\n margin-bottom: 1em;\n }\n\n // Adjust spacing for contained table wrappers\n .md-typeset__scrollwrap {\n margin: 1em px2rem(-12px);\n }\n\n // Adjust spacing for contained tables\n .md-typeset__table {\n padding: 0 px2rem(12px);\n }\n\n // Adjust spacing for single-child tabbed block container\n > .tabbed-set:only-child {\n margin-top: 0;\n }\n\n // Adjust spacing on last child\n html & > :last-child {\n margin-bottom: px2rem(12px);\n }\n }\n\n // Admonition title\n .admonition-title {\n position: relative;\n margin: 0 px2rem(-12px) 0 px2rem(-16px);\n padding: px2rem(8px) px2rem(12px) px2rem(8px) px2rem(40px);\n font-weight: 700;\n background-color: transparentize($clr-blue-a200, 0.9);\n border-left: px2rem(4px) solid $clr-blue-a200;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin: 0 px2rem(-16px) 0 px2rem(-12px);\n padding: px2rem(8px) px2rem(40px) px2rem(8px) px2rem(12px);\n border-right: px2rem(4px) solid $clr-blue-a200;\n border-left: none;\n }\n\n // Adjust spacing for title-only admonitions\n html &:last-child {\n margin-bottom: 0;\n }\n\n // Admonition icon\n &::before {\n position: absolute;\n left: px2rem(12px);\n width: px2rem(20px);\n height: px2rem(20px);\n background-color: $clr-blue-a200;\n mask-image: var(--md-admonition-icon--note);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: px2rem(12px);\n left: initial;\n }\n }\n\n // Adjust spacing on last tabbed block container child - if the tabbed\n // block container is the sole child, it looks better to omit the margin\n + .tabbed-set:last-child {\n margin-top: 0;\n }\n }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: flavours\n// ----------------------------------------------------------------------------\n\n@each $names, $props in $admonitions {\n $name: nth($names, 1);\n $tint: nth($props, 2);\n\n // Admonition flavour\n .md-typeset .admonition.#{$name} {\n border-color: $tint;\n }\n\n // Admonition flavour title\n .md-typeset .#{$name} > .admonition-title {\n background-color: transparentize($tint, 0.9);\n border-color: $tint;\n\n // Admonition icon\n &::before {\n background-color: $tint;\n mask-image: var(--md-admonition-icon--#{$name});\n mask-repeat: no-repeat;\n mask-size: contain;\n }\n }\n\n // Define synonyms for flavours\n @if length($names) > 1 {\n @for $n from 2 through length($names) {\n .#{nth($names, $n)} {\n @extend .#{$name};\n }\n }\n }\n}\n","// ==========================================================================\n//\n// Name: UI Color Palette\n// Description: The color palette of material design.\n// Version: 2.3.1\n//\n// Author: Denis Malinochkin\n// Git: https://github.com/mrmlnc/material-color\n//\n// twitter: @mrmlnc\n//\n// ==========================================================================\n\n\n//\n// List of base colors\n//\n\n// $clr-red\n// $clr-pink\n// $clr-purple\n// $clr-deep-purple\n// $clr-indigo\n// $clr-blue\n// $clr-light-blue\n// $clr-cyan\n// $clr-teal\n// $clr-green\n// $clr-light-green\n// $clr-lime\n// $clr-yellow\n// $clr-amber\n// $clr-orange\n// $clr-deep-orange\n// $clr-brown\n// $clr-grey\n// $clr-blue-grey\n// $clr-black\n// $clr-white\n\n\n//\n// Red\n//\n\n$clr-red-list: (\n \"base\": #f44336,\n \"50\": #ffebee,\n \"100\": #ffcdd2,\n \"200\": #ef9a9a,\n \"300\": #e57373,\n \"400\": #ef5350,\n \"500\": #f44336,\n \"600\": #e53935,\n \"700\": #d32f2f,\n \"800\": #c62828,\n \"900\": #b71c1c,\n \"a100\": #ff8a80,\n \"a200\": #ff5252,\n \"a400\": #ff1744,\n \"a700\": #d50000\n);\n\n$clr-red: map-get($clr-red-list, \"base\");\n\n$clr-red-50: map-get($clr-red-list, \"50\");\n$clr-red-100: map-get($clr-red-list, \"100\");\n$clr-red-200: map-get($clr-red-list, \"200\");\n$clr-red-300: map-get($clr-red-list, \"300\");\n$clr-red-400: map-get($clr-red-list, \"400\");\n$clr-red-500: map-get($clr-red-list, \"500\");\n$clr-red-600: map-get($clr-red-list, \"600\");\n$clr-red-700: map-get($clr-red-list, \"700\");\n$clr-red-800: map-get($clr-red-list, \"800\");\n$clr-red-900: map-get($clr-red-list, \"900\");\n$clr-red-a100: map-get($clr-red-list, \"a100\");\n$clr-red-a200: map-get($clr-red-list, \"a200\");\n$clr-red-a400: map-get($clr-red-list, \"a400\");\n$clr-red-a700: map-get($clr-red-list, \"a700\");\n\n\n//\n// Pink\n//\n\n$clr-pink-list: (\n \"base\": #e91e63,\n \"50\": #fce4ec,\n \"100\": #f8bbd0,\n \"200\": #f48fb1,\n \"300\": #f06292,\n \"400\": #ec407a,\n \"500\": #e91e63,\n \"600\": #d81b60,\n \"700\": #c2185b,\n \"800\": #ad1457,\n \"900\": #880e4f,\n \"a100\": #ff80ab,\n \"a200\": #ff4081,\n \"a400\": #f50057,\n \"a700\": #c51162\n);\n\n$clr-pink: map-get($clr-pink-list, \"base\");\n\n$clr-pink-50: map-get($clr-pink-list, \"50\");\n$clr-pink-100: map-get($clr-pink-list, \"100\");\n$clr-pink-200: map-get($clr-pink-list, \"200\");\n$clr-pink-300: map-get($clr-pink-list, \"300\");\n$clr-pink-400: map-get($clr-pink-list, \"400\");\n$clr-pink-500: map-get($clr-pink-list, \"500\");\n$clr-pink-600: map-get($clr-pink-list, \"600\");\n$clr-pink-700: map-get($clr-pink-list, \"700\");\n$clr-pink-800: map-get($clr-pink-list, \"800\");\n$clr-pink-900: map-get($clr-pink-list, \"900\");\n$clr-pink-a100: map-get($clr-pink-list, \"a100\");\n$clr-pink-a200: map-get($clr-pink-list, \"a200\");\n$clr-pink-a400: map-get($clr-pink-list, \"a400\");\n$clr-pink-a700: map-get($clr-pink-list, \"a700\");\n\n\n//\n// Purple\n//\n\n$clr-purple-list: (\n \"base\": #9c27b0,\n \"50\": #f3e5f5,\n \"100\": #e1bee7,\n \"200\": #ce93d8,\n \"300\": #ba68c8,\n \"400\": #ab47bc,\n \"500\": #9c27b0,\n \"600\": #8e24aa,\n \"700\": #7b1fa2,\n \"800\": #6a1b9a,\n \"900\": #4a148c,\n \"a100\": #ea80fc,\n \"a200\": #e040fb,\n \"a400\": #d500f9,\n \"a700\": #aa00ff\n);\n\n$clr-purple: map-get($clr-purple-list, \"base\");\n\n$clr-purple-50: map-get($clr-purple-list, \"50\");\n$clr-purple-100: map-get($clr-purple-list, \"100\");\n$clr-purple-200: map-get($clr-purple-list, \"200\");\n$clr-purple-300: map-get($clr-purple-list, \"300\");\n$clr-purple-400: map-get($clr-purple-list, \"400\");\n$clr-purple-500: map-get($clr-purple-list, \"500\");\n$clr-purple-600: map-get($clr-purple-list, \"600\");\n$clr-purple-700: map-get($clr-purple-list, \"700\");\n$clr-purple-800: map-get($clr-purple-list, \"800\");\n$clr-purple-900: map-get($clr-purple-list, \"900\");\n$clr-purple-a100: map-get($clr-purple-list, \"a100\");\n$clr-purple-a200: map-get($clr-purple-list, \"a200\");\n$clr-purple-a400: map-get($clr-purple-list, \"a400\");\n$clr-purple-a700: map-get($clr-purple-list, \"a700\");\n\n\n//\n// Deep purple\n//\n\n$clr-deep-purple-list: (\n \"base\": #673ab7,\n \"50\": #ede7f6,\n \"100\": #d1c4e9,\n \"200\": #b39ddb,\n \"300\": #9575cd,\n \"400\": #7e57c2,\n \"500\": #673ab7,\n \"600\": #5e35b1,\n \"700\": #512da8,\n \"800\": #4527a0,\n \"900\": #311b92,\n \"a100\": #b388ff,\n \"a200\": #7c4dff,\n \"a400\": #651fff,\n \"a700\": #6200ea\n);\n\n$clr-deep-purple: map-get($clr-deep-purple-list, \"base\");\n\n$clr-deep-purple-50: map-get($clr-deep-purple-list, \"50\");\n$clr-deep-purple-100: map-get($clr-deep-purple-list, \"100\");\n$clr-deep-purple-200: map-get($clr-deep-purple-list, \"200\");\n$clr-deep-purple-300: map-get($clr-deep-purple-list, \"300\");\n$clr-deep-purple-400: map-get($clr-deep-purple-list, \"400\");\n$clr-deep-purple-500: map-get($clr-deep-purple-list, \"500\");\n$clr-deep-purple-600: map-get($clr-deep-purple-list, \"600\");\n$clr-deep-purple-700: map-get($clr-deep-purple-list, \"700\");\n$clr-deep-purple-800: map-get($clr-deep-purple-list, \"800\");\n$clr-deep-purple-900: map-get($clr-deep-purple-list, \"900\");\n$clr-deep-purple-a100: map-get($clr-deep-purple-list, \"a100\");\n$clr-deep-purple-a200: map-get($clr-deep-purple-list, \"a200\");\n$clr-deep-purple-a400: map-get($clr-deep-purple-list, \"a400\");\n$clr-deep-purple-a700: map-get($clr-deep-purple-list, \"a700\");\n\n\n//\n// Indigo\n//\n\n$clr-indigo-list: (\n \"base\": #3f51b5,\n \"50\": #e8eaf6,\n \"100\": #c5cae9,\n \"200\": #9fa8da,\n \"300\": #7986cb,\n \"400\": #5c6bc0,\n \"500\": #3f51b5,\n \"600\": #3949ab,\n \"700\": #303f9f,\n \"800\": #283593,\n \"900\": #1a237e,\n \"a100\": #8c9eff,\n \"a200\": #536dfe,\n \"a400\": #3d5afe,\n \"a700\": #304ffe\n);\n\n$clr-indigo: map-get($clr-indigo-list, \"base\");\n\n$clr-indigo-50: map-get($clr-indigo-list, \"50\");\n$clr-indigo-100: map-get($clr-indigo-list, \"100\");\n$clr-indigo-200: map-get($clr-indigo-list, \"200\");\n$clr-indigo-300: map-get($clr-indigo-list, \"300\");\n$clr-indigo-400: map-get($clr-indigo-list, \"400\");\n$clr-indigo-500: map-get($clr-indigo-list, \"500\");\n$clr-indigo-600: map-get($clr-indigo-list, \"600\");\n$clr-indigo-700: map-get($clr-indigo-list, \"700\");\n$clr-indigo-800: map-get($clr-indigo-list, \"800\");\n$clr-indigo-900: map-get($clr-indigo-list, \"900\");\n$clr-indigo-a100: map-get($clr-indigo-list, \"a100\");\n$clr-indigo-a200: map-get($clr-indigo-list, \"a200\");\n$clr-indigo-a400: map-get($clr-indigo-list, \"a400\");\n$clr-indigo-a700: map-get($clr-indigo-list, \"a700\");\n\n\n//\n// Blue\n//\n\n$clr-blue-list: (\n \"base\": #2196f3,\n \"50\": #e3f2fd,\n \"100\": #bbdefb,\n \"200\": #90caf9,\n \"300\": #64b5f6,\n \"400\": #42a5f5,\n \"500\": #2196f3,\n \"600\": #1e88e5,\n \"700\": #1976d2,\n \"800\": #1565c0,\n \"900\": #0d47a1,\n \"a100\": #82b1ff,\n \"a200\": #448aff,\n \"a400\": #2979ff,\n \"a700\": #2962ff\n);\n\n$clr-blue: map-get($clr-blue-list, \"base\");\n\n$clr-blue-50: map-get($clr-blue-list, \"50\");\n$clr-blue-100: map-get($clr-blue-list, \"100\");\n$clr-blue-200: map-get($clr-blue-list, \"200\");\n$clr-blue-300: map-get($clr-blue-list, \"300\");\n$clr-blue-400: map-get($clr-blue-list, \"400\");\n$clr-blue-500: map-get($clr-blue-list, \"500\");\n$clr-blue-600: map-get($clr-blue-list, \"600\");\n$clr-blue-700: map-get($clr-blue-list, \"700\");\n$clr-blue-800: map-get($clr-blue-list, \"800\");\n$clr-blue-900: map-get($clr-blue-list, \"900\");\n$clr-blue-a100: map-get($clr-blue-list, \"a100\");\n$clr-blue-a200: map-get($clr-blue-list, \"a200\");\n$clr-blue-a400: map-get($clr-blue-list, \"a400\");\n$clr-blue-a700: map-get($clr-blue-list, \"a700\");\n\n\n//\n// Light Blue\n//\n\n$clr-light-blue-list: (\n \"base\": #03a9f4,\n \"50\": #e1f5fe,\n \"100\": #b3e5fc,\n \"200\": #81d4fa,\n \"300\": #4fc3f7,\n \"400\": #29b6f6,\n \"500\": #03a9f4,\n \"600\": #039be5,\n \"700\": #0288d1,\n \"800\": #0277bd,\n \"900\": #01579b,\n \"a100\": #80d8ff,\n \"a200\": #40c4ff,\n \"a400\": #00b0ff,\n \"a700\": #0091ea\n);\n\n$clr-light-blue: map-get($clr-light-blue-list, \"base\");\n\n$clr-light-blue-50: map-get($clr-light-blue-list, \"50\");\n$clr-light-blue-100: map-get($clr-light-blue-list, \"100\");\n$clr-light-blue-200: map-get($clr-light-blue-list, \"200\");\n$clr-light-blue-300: map-get($clr-light-blue-list, \"300\");\n$clr-light-blue-400: map-get($clr-light-blue-list, \"400\");\n$clr-light-blue-500: map-get($clr-light-blue-list, \"500\");\n$clr-light-blue-600: map-get($clr-light-blue-list, \"600\");\n$clr-light-blue-700: map-get($clr-light-blue-list, \"700\");\n$clr-light-blue-800: map-get($clr-light-blue-list, \"800\");\n$clr-light-blue-900: map-get($clr-light-blue-list, \"900\");\n$clr-light-blue-a100: map-get($clr-light-blue-list, \"a100\");\n$clr-light-blue-a200: map-get($clr-light-blue-list, \"a200\");\n$clr-light-blue-a400: map-get($clr-light-blue-list, \"a400\");\n$clr-light-blue-a700: map-get($clr-light-blue-list, \"a700\");\n\n\n//\n// Cyan\n//\n\n$clr-cyan-list: (\n \"base\": #00bcd4,\n \"50\": #e0f7fa,\n \"100\": #b2ebf2,\n \"200\": #80deea,\n \"300\": #4dd0e1,\n \"400\": #26c6da,\n \"500\": #00bcd4,\n \"600\": #00acc1,\n \"700\": #0097a7,\n \"800\": #00838f,\n \"900\": #006064,\n \"a100\": #84ffff,\n \"a200\": #18ffff,\n \"a400\": #00e5ff,\n \"a700\": #00b8d4\n);\n\n$clr-cyan: map-get($clr-cyan-list, \"base\");\n\n$clr-cyan-50: map-get($clr-cyan-list, \"50\");\n$clr-cyan-100: map-get($clr-cyan-list, \"100\");\n$clr-cyan-200: map-get($clr-cyan-list, \"200\");\n$clr-cyan-300: map-get($clr-cyan-list, \"300\");\n$clr-cyan-400: map-get($clr-cyan-list, \"400\");\n$clr-cyan-500: map-get($clr-cyan-list, \"500\");\n$clr-cyan-600: map-get($clr-cyan-list, \"600\");\n$clr-cyan-700: map-get($clr-cyan-list, \"700\");\n$clr-cyan-800: map-get($clr-cyan-list, \"800\");\n$clr-cyan-900: map-get($clr-cyan-list, \"900\");\n$clr-cyan-a100: map-get($clr-cyan-list, \"a100\");\n$clr-cyan-a200: map-get($clr-cyan-list, \"a200\");\n$clr-cyan-a400: map-get($clr-cyan-list, \"a400\");\n$clr-cyan-a700: map-get($clr-cyan-list, \"a700\");\n\n\n//\n// Teal\n//\n\n$clr-teal-list: (\n \"base\": #009688,\n \"50\": #e0f2f1,\n \"100\": #b2dfdb,\n \"200\": #80cbc4,\n \"300\": #4db6ac,\n \"400\": #26a69a,\n \"500\": #009688,\n \"600\": #00897b,\n \"700\": #00796b,\n \"800\": #00695c,\n \"900\": #004d40,\n \"a100\": #a7ffeb,\n \"a200\": #64ffda,\n \"a400\": #1de9b6,\n \"a700\": #00bfa5\n);\n\n$clr-teal: map-get($clr-teal-list, \"base\");\n\n$clr-teal-50: map-get($clr-teal-list, \"50\");\n$clr-teal-100: map-get($clr-teal-list, \"100\");\n$clr-teal-200: map-get($clr-teal-list, \"200\");\n$clr-teal-300: map-get($clr-teal-list, \"300\");\n$clr-teal-400: map-get($clr-teal-list, \"400\");\n$clr-teal-500: map-get($clr-teal-list, \"500\");\n$clr-teal-600: map-get($clr-teal-list, \"600\");\n$clr-teal-700: map-get($clr-teal-list, \"700\");\n$clr-teal-800: map-get($clr-teal-list, \"800\");\n$clr-teal-900: map-get($clr-teal-list, \"900\");\n$clr-teal-a100: map-get($clr-teal-list, \"a100\");\n$clr-teal-a200: map-get($clr-teal-list, \"a200\");\n$clr-teal-a400: map-get($clr-teal-list, \"a400\");\n$clr-teal-a700: map-get($clr-teal-list, \"a700\");\n\n\n//\n// Green\n//\n\n$clr-green-list: (\n \"base\": #4caf50,\n \"50\": #e8f5e9,\n \"100\": #c8e6c9,\n \"200\": #a5d6a7,\n \"300\": #81c784,\n \"400\": #66bb6a,\n \"500\": #4caf50,\n \"600\": #43a047,\n \"700\": #388e3c,\n \"800\": #2e7d32,\n \"900\": #1b5e20,\n \"a100\": #b9f6ca,\n \"a200\": #69f0ae,\n \"a400\": #00e676,\n \"a700\": #00c853\n);\n\n$clr-green: map-get($clr-green-list, \"base\");\n\n$clr-green-50: map-get($clr-green-list, \"50\");\n$clr-green-100: map-get($clr-green-list, \"100\");\n$clr-green-200: map-get($clr-green-list, \"200\");\n$clr-green-300: map-get($clr-green-list, \"300\");\n$clr-green-400: map-get($clr-green-list, \"400\");\n$clr-green-500: map-get($clr-green-list, \"500\");\n$clr-green-600: map-get($clr-green-list, \"600\");\n$clr-green-700: map-get($clr-green-list, \"700\");\n$clr-green-800: map-get($clr-green-list, \"800\");\n$clr-green-900: map-get($clr-green-list, \"900\");\n$clr-green-a100: map-get($clr-green-list, \"a100\");\n$clr-green-a200: map-get($clr-green-list, \"a200\");\n$clr-green-a400: map-get($clr-green-list, \"a400\");\n$clr-green-a700: map-get($clr-green-list, \"a700\");\n\n\n//\n// Light green\n//\n\n$clr-light-green-list: (\n \"base\": #8bc34a,\n \"50\": #f1f8e9,\n \"100\": #dcedc8,\n \"200\": #c5e1a5,\n \"300\": #aed581,\n \"400\": #9ccc65,\n \"500\": #8bc34a,\n \"600\": #7cb342,\n \"700\": #689f38,\n \"800\": #558b2f,\n \"900\": #33691e,\n \"a100\": #ccff90,\n \"a200\": #b2ff59,\n \"a400\": #76ff03,\n \"a700\": #64dd17\n);\n\n$clr-light-green: map-get($clr-light-green-list, \"base\");\n\n$clr-light-green-50: map-get($clr-light-green-list, \"50\");\n$clr-light-green-100: map-get($clr-light-green-list, \"100\");\n$clr-light-green-200: map-get($clr-light-green-list, \"200\");\n$clr-light-green-300: map-get($clr-light-green-list, \"300\");\n$clr-light-green-400: map-get($clr-light-green-list, \"400\");\n$clr-light-green-500: map-get($clr-light-green-list, \"500\");\n$clr-light-green-600: map-get($clr-light-green-list, \"600\");\n$clr-light-green-700: map-get($clr-light-green-list, \"700\");\n$clr-light-green-800: map-get($clr-light-green-list, \"800\");\n$clr-light-green-900: map-get($clr-light-green-list, \"900\");\n$clr-light-green-a100: map-get($clr-light-green-list, \"a100\");\n$clr-light-green-a200: map-get($clr-light-green-list, \"a200\");\n$clr-light-green-a400: map-get($clr-light-green-list, \"a400\");\n$clr-light-green-a700: map-get($clr-light-green-list, \"a700\");\n\n\n//\n// Lime\n//\n\n$clr-lime-list: (\n \"base\": #cddc39,\n \"50\": #f9fbe7,\n \"100\": #f0f4c3,\n \"200\": #e6ee9c,\n \"300\": #dce775,\n \"400\": #d4e157,\n \"500\": #cddc39,\n \"600\": #c0ca33,\n \"700\": #afb42b,\n \"800\": #9e9d24,\n \"900\": #827717,\n \"a100\": #f4ff81,\n \"a200\": #eeff41,\n \"a400\": #c6ff00,\n \"a700\": #aeea00\n);\n\n$clr-lime: map-get($clr-lime-list, \"base\");\n\n$clr-lime-50: map-get($clr-lime-list, \"50\");\n$clr-lime-100: map-get($clr-lime-list, \"100\");\n$clr-lime-200: map-get($clr-lime-list, \"200\");\n$clr-lime-300: map-get($clr-lime-list, \"300\");\n$clr-lime-400: map-get($clr-lime-list, \"400\");\n$clr-lime-500: map-get($clr-lime-list, \"500\");\n$clr-lime-600: map-get($clr-lime-list, \"600\");\n$clr-lime-700: map-get($clr-lime-list, \"700\");\n$clr-lime-800: map-get($clr-lime-list, \"800\");\n$clr-lime-900: map-get($clr-lime-list, \"900\");\n$clr-lime-a100: map-get($clr-lime-list, \"a100\");\n$clr-lime-a200: map-get($clr-lime-list, \"a200\");\n$clr-lime-a400: map-get($clr-lime-list, \"a400\");\n$clr-lime-a700: map-get($clr-lime-list, \"a700\");\n\n\n//\n// Yellow\n//\n\n$clr-yellow-list: (\n \"base\": #ffeb3b,\n \"50\": #fffde7,\n \"100\": #fff9c4,\n \"200\": #fff59d,\n \"300\": #fff176,\n \"400\": #ffee58,\n \"500\": #ffeb3b,\n \"600\": #fdd835,\n \"700\": #fbc02d,\n \"800\": #f9a825,\n \"900\": #f57f17,\n \"a100\": #ffff8d,\n \"a200\": #ffff00,\n \"a400\": #ffea00,\n \"a700\": #ffd600\n);\n\n$clr-yellow: map-get($clr-yellow-list, \"base\");\n\n$clr-yellow-50: map-get($clr-yellow-list, \"50\");\n$clr-yellow-100: map-get($clr-yellow-list, \"100\");\n$clr-yellow-200: map-get($clr-yellow-list, \"200\");\n$clr-yellow-300: map-get($clr-yellow-list, \"300\");\n$clr-yellow-400: map-get($clr-yellow-list, \"400\");\n$clr-yellow-500: map-get($clr-yellow-list, \"500\");\n$clr-yellow-600: map-get($clr-yellow-list, \"600\");\n$clr-yellow-700: map-get($clr-yellow-list, \"700\");\n$clr-yellow-800: map-get($clr-yellow-list, \"800\");\n$clr-yellow-900: map-get($clr-yellow-list, \"900\");\n$clr-yellow-a100: map-get($clr-yellow-list, \"a100\");\n$clr-yellow-a200: map-get($clr-yellow-list, \"a200\");\n$clr-yellow-a400: map-get($clr-yellow-list, \"a400\");\n$clr-yellow-a700: map-get($clr-yellow-list, \"a700\");\n\n\n//\n// amber\n//\n\n$clr-amber-list: (\n \"base\": #ffc107,\n \"50\": #fff8e1,\n \"100\": #ffecb3,\n \"200\": #ffe082,\n \"300\": #ffd54f,\n \"400\": #ffca28,\n \"500\": #ffc107,\n \"600\": #ffb300,\n \"700\": #ffa000,\n \"800\": #ff8f00,\n \"900\": #ff6f00,\n \"a100\": #ffe57f,\n \"a200\": #ffd740,\n \"a400\": #ffc400,\n \"a700\": #ffab00\n);\n\n$clr-amber: map-get($clr-amber-list, \"base\");\n\n$clr-amber-50: map-get($clr-amber-list, \"50\");\n$clr-amber-100: map-get($clr-amber-list, \"100\");\n$clr-amber-200: map-get($clr-amber-list, \"200\");\n$clr-amber-300: map-get($clr-amber-list, \"300\");\n$clr-amber-400: map-get($clr-amber-list, \"400\");\n$clr-amber-500: map-get($clr-amber-list, \"500\");\n$clr-amber-600: map-get($clr-amber-list, \"600\");\n$clr-amber-700: map-get($clr-amber-list, \"700\");\n$clr-amber-800: map-get($clr-amber-list, \"800\");\n$clr-amber-900: map-get($clr-amber-list, \"900\");\n$clr-amber-a100: map-get($clr-amber-list, \"a100\");\n$clr-amber-a200: map-get($clr-amber-list, \"a200\");\n$clr-amber-a400: map-get($clr-amber-list, \"a400\");\n$clr-amber-a700: map-get($clr-amber-list, \"a700\");\n\n\n//\n// Orange\n//\n\n$clr-orange-list: (\n \"base\": #ff9800,\n \"50\": #fff3e0,\n \"100\": #ffe0b2,\n \"200\": #ffcc80,\n \"300\": #ffb74d,\n \"400\": #ffa726,\n \"500\": #ff9800,\n \"600\": #fb8c00,\n \"700\": #f57c00,\n \"800\": #ef6c00,\n \"900\": #e65100,\n \"a100\": #ffd180,\n \"a200\": #ffab40,\n \"a400\": #ff9100,\n \"a700\": #ff6d00\n);\n\n$clr-orange: map-get($clr-orange-list, \"base\");\n\n$clr-orange-50: map-get($clr-orange-list, \"50\");\n$clr-orange-100: map-get($clr-orange-list, \"100\");\n$clr-orange-200: map-get($clr-orange-list, \"200\");\n$clr-orange-300: map-get($clr-orange-list, \"300\");\n$clr-orange-400: map-get($clr-orange-list, \"400\");\n$clr-orange-500: map-get($clr-orange-list, \"500\");\n$clr-orange-600: map-get($clr-orange-list, \"600\");\n$clr-orange-700: map-get($clr-orange-list, \"700\");\n$clr-orange-800: map-get($clr-orange-list, \"800\");\n$clr-orange-900: map-get($clr-orange-list, \"900\");\n$clr-orange-a100: map-get($clr-orange-list, \"a100\");\n$clr-orange-a200: map-get($clr-orange-list, \"a200\");\n$clr-orange-a400: map-get($clr-orange-list, \"a400\");\n$clr-orange-a700: map-get($clr-orange-list, \"a700\");\n\n\n//\n// Deep orange\n//\n\n$clr-deep-orange-list: (\n \"base\": #ff5722,\n \"50\": #fbe9e7,\n \"100\": #ffccbc,\n \"200\": #ffab91,\n \"300\": #ff8a65,\n \"400\": #ff7043,\n \"500\": #ff5722,\n \"600\": #f4511e,\n \"700\": #e64a19,\n \"800\": #d84315,\n \"900\": #bf360c,\n \"a100\": #ff9e80,\n \"a200\": #ff6e40,\n \"a400\": #ff3d00,\n \"a700\": #dd2c00\n);\n\n$clr-deep-orange: map-get($clr-deep-orange-list, \"base\");\n\n$clr-deep-orange-50: map-get($clr-deep-orange-list, \"50\");\n$clr-deep-orange-100: map-get($clr-deep-orange-list, \"100\");\n$clr-deep-orange-200: map-get($clr-deep-orange-list, \"200\");\n$clr-deep-orange-300: map-get($clr-deep-orange-list, \"300\");\n$clr-deep-orange-400: map-get($clr-deep-orange-list, \"400\");\n$clr-deep-orange-500: map-get($clr-deep-orange-list, \"500\");\n$clr-deep-orange-600: map-get($clr-deep-orange-list, \"600\");\n$clr-deep-orange-700: map-get($clr-deep-orange-list, \"700\");\n$clr-deep-orange-800: map-get($clr-deep-orange-list, \"800\");\n$clr-deep-orange-900: map-get($clr-deep-orange-list, \"900\");\n$clr-deep-orange-a100: map-get($clr-deep-orange-list, \"a100\");\n$clr-deep-orange-a200: map-get($clr-deep-orange-list, \"a200\");\n$clr-deep-orange-a400: map-get($clr-deep-orange-list, \"a400\");\n$clr-deep-orange-a700: map-get($clr-deep-orange-list, \"a700\");\n\n\n//\n// Brown\n//\n\n$clr-brown-list: (\n \"base\": #795548,\n \"50\": #efebe9,\n \"100\": #d7ccc8,\n \"200\": #bcaaa4,\n \"300\": #a1887f,\n \"400\": #8d6e63,\n \"500\": #795548,\n \"600\": #6d4c41,\n \"700\": #5d4037,\n \"800\": #4e342e,\n \"900\": #3e2723,\n);\n\n$clr-brown: map-get($clr-brown-list, \"base\");\n\n$clr-brown-50: map-get($clr-brown-list, \"50\");\n$clr-brown-100: map-get($clr-brown-list, \"100\");\n$clr-brown-200: map-get($clr-brown-list, \"200\");\n$clr-brown-300: map-get($clr-brown-list, \"300\");\n$clr-brown-400: map-get($clr-brown-list, \"400\");\n$clr-brown-500: map-get($clr-brown-list, \"500\");\n$clr-brown-600: map-get($clr-brown-list, \"600\");\n$clr-brown-700: map-get($clr-brown-list, \"700\");\n$clr-brown-800: map-get($clr-brown-list, \"800\");\n$clr-brown-900: map-get($clr-brown-list, \"900\");\n\n\n//\n// Grey\n//\n\n$clr-grey-list: (\n \"base\": #9e9e9e,\n \"50\": #fafafa,\n \"100\": #f5f5f5,\n \"200\": #eeeeee,\n \"300\": #e0e0e0,\n \"400\": #bdbdbd,\n \"500\": #9e9e9e,\n \"600\": #757575,\n \"700\": #616161,\n \"800\": #424242,\n \"900\": #212121,\n);\n\n$clr-grey: map-get($clr-grey-list, \"base\");\n\n$clr-grey-50: map-get($clr-grey-list, \"50\");\n$clr-grey-100: map-get($clr-grey-list, \"100\");\n$clr-grey-200: map-get($clr-grey-list, \"200\");\n$clr-grey-300: map-get($clr-grey-list, \"300\");\n$clr-grey-400: map-get($clr-grey-list, \"400\");\n$clr-grey-500: map-get($clr-grey-list, \"500\");\n$clr-grey-600: map-get($clr-grey-list, \"600\");\n$clr-grey-700: map-get($clr-grey-list, \"700\");\n$clr-grey-800: map-get($clr-grey-list, \"800\");\n$clr-grey-900: map-get($clr-grey-list, \"900\");\n\n\n//\n// Blue grey\n//\n\n$clr-blue-grey-list: (\n \"base\": #607d8b,\n \"50\": #eceff1,\n \"100\": #cfd8dc,\n \"200\": #b0bec5,\n \"300\": #90a4ae,\n \"400\": #78909c,\n \"500\": #607d8b,\n \"600\": #546e7a,\n \"700\": #455a64,\n \"800\": #37474f,\n \"900\": #263238,\n);\n\n$clr-blue-grey: map-get($clr-blue-grey-list, \"base\");\n\n$clr-blue-grey-50: map-get($clr-blue-grey-list, \"50\");\n$clr-blue-grey-100: map-get($clr-blue-grey-list, \"100\");\n$clr-blue-grey-200: map-get($clr-blue-grey-list, \"200\");\n$clr-blue-grey-300: map-get($clr-blue-grey-list, \"300\");\n$clr-blue-grey-400: map-get($clr-blue-grey-list, \"400\");\n$clr-blue-grey-500: map-get($clr-blue-grey-list, \"500\");\n$clr-blue-grey-600: map-get($clr-blue-grey-list, \"600\");\n$clr-blue-grey-700: map-get($clr-blue-grey-list, \"700\");\n$clr-blue-grey-800: map-get($clr-blue-grey-list, \"800\");\n$clr-blue-grey-900: map-get($clr-blue-grey-list, \"900\");\n\n\n//\n// Black\n//\n\n$clr-black-list: (\n \"base\": #000\n);\n\n$clr-black: map-get($clr-black-list, \"base\");\n\n\n//\n// White\n//\n\n$clr-white-list: (\n \"base\": #fff\n);\n\n$clr-white: map-get($clr-white-list, \"base\");\n\n\n//\n// List for all Colors for looping\n//\n\n$clr-list-all: (\n \"red\": $clr-red-list,\n \"pink\": $clr-pink-list,\n \"purple\": $clr-purple-list,\n \"deep-purple\": $clr-deep-purple-list,\n \"indigo\": $clr-indigo-list,\n \"blue\": $clr-blue-list,\n \"light-blue\": $clr-light-blue-list,\n \"cyan\": $clr-cyan-list,\n \"teal\": $clr-teal-list,\n \"green\": $clr-green-list,\n \"light-green\": $clr-light-green-list,\n \"lime\": $clr-lime-list,\n \"yellow\": $clr-yellow-list,\n \"amber\": $clr-amber-list,\n \"orange\": $clr-orange-list,\n \"deep-orange\": $clr-deep-orange-list,\n \"brown\": $clr-brown-list,\n \"grey\": $clr-grey-list,\n \"blue-grey\": $clr-blue-grey-list,\n \"black\": $clr-black-list,\n \"white\": $clr-white-list\n);\n\n\n//\n// Typography\n//\n\n$clr-ui-display-4: $clr-grey-600;\n$clr-ui-display-3: $clr-grey-600;\n$clr-ui-display-2: $clr-grey-600;\n$clr-ui-display-1: $clr-grey-600;\n$clr-ui-headline: $clr-grey-900;\n$clr-ui-title: $clr-grey-900;\n$clr-ui-subhead-1: $clr-grey-900;\n$clr-ui-body-2: $clr-grey-900;\n$clr-ui-body-1: $clr-grey-900;\n$clr-ui-caption: $clr-grey-600;\n$clr-ui-menu: $clr-grey-900;\n$clr-ui-button: $clr-grey-900;\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n --md-footnotes-icon: svg-load(\"material/keyboard-return.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Footnote container\n .footnote {\n color: var(--md-default-fg-color--light);\n font-size: px2rem(12.8px);\n\n // Footnote list - omit left indentation\n > ol {\n margin-left: 0;\n\n // Footnote item - footnote items can contain lists, so we need to scope\n // the spacing adjustments to the top-level footnote item.\n > li {\n transition: color 125ms;\n\n // Darken color on target\n &:target {\n color: var(--md-default-fg-color);\n }\n\n // Show backreferences on footnote hover\n &:hover .footnote-backref,\n &:target .footnote-backref {\n transform: translateX(0);\n opacity: 1;\n }\n\n // Adjust spacing on first child\n > :first-child {\n margin-top: 0;\n }\n }\n }\n }\n\n // Footnote reference\n .footnote-ref {\n font-weight: 700;\n font-size: px2em(12px, 16px);\n\n // Hack: increase specificity to override default\n html & {\n outline-offset: px2rem(2px);\n }\n }\n\n // Footnote backreference\n .footnote-backref {\n display: inline-block;\n color: var(--md-typeset-a-color);\n // Hack: omit Unicode arrow for replacement with icon\n font-size: 0;\n vertical-align: text-bottom;\n transform: translateX(px2rem(5px));\n opacity: 0;\n transition:\n color 250ms,\n transform 250ms 250ms,\n opacity 125ms 250ms;\n\n // [print]: Show footnote backreferences\n @media print {\n color: var(--md-typeset-a-color);\n transform: translateX(0);\n opacity: 1;\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n transform: translateX(px2rem(-5px));\n }\n\n // Adjust color on hover\n &:hover {\n color: var(--md-accent-fg-color);\n }\n\n // Footnote backreference icon\n &::before {\n display: inline-block;\n width: px2rem(16px);\n height: px2rem(16px);\n background-color: currentColor;\n mask-image: var(--md-footnotes-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n\n // Flip icon vertically\n svg {\n transform: scaleX(-1);\n }\n }\n }\n }\n\n // Footnote reference wrapper\n [id^=\"fnref:\"]:target {\n scroll-margin-top: initial;\n margin-top: -1 * px2rem(48px + 24px - 4px);\n padding-top: px2rem(48px + 24px - 4px);\n\n // Show outline for all devices\n > .footnote-ref {\n outline: auto;\n }\n }\n\n // Footnote wrapper\n [id^=\"fn:\"]:target {\n scroll-margin-top: initial;\n margin-top: -1 * px2rem(48px + 24px - 3px);\n padding-top: px2rem(48px + 24px - 3px);\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Headerlink\n .headerlink {\n display: inline-block;\n margin-left: px2rem(10px);\n color: var(--md-default-fg-color--lighter);\n opacity: 0;\n transition:\n color 250ms,\n opacity 125ms;\n\n // [print]: Hide headerlinks\n @media print {\n display: none;\n }\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n margin-right: px2rem(10px);\n margin-left: initial;\n }\n }\n\n // Show headerlinks on parent hover\n :hover > .headerlink,\n :target > .headerlink,\n .headerlink:focus {\n opacity: 1;\n transition:\n color 250ms,\n opacity 125ms;\n }\n\n // Adjust color on parent target or focus/hover\n :target > .headerlink,\n .headerlink:focus,\n .headerlink:hover {\n color: var(--md-accent-fg-color);\n }\n\n // Adjust scroll offset for all elements with `id` attributes - general scroll\n // margin offset for anything that can be targeted. Browser support is pretty\n // decent by now, but Edge <79 and Safari (iOS and macOS) still don't support\n // it properly, so we settle with a cross-browser anchor correction solution.\n :target {\n scroll-margin-top: px2rem(48px + 24px);\n }\n\n // Adjust scroll offset for headlines of level 1-3\n h1:target,\n h2:target,\n h3:target {\n scroll-margin-top: initial;\n\n // Anchor correction hack\n &::before {\n display: block;\n margin-top: -1 * px2rem(48px + 24px - 4px);\n padding-top: px2rem(48px + 24px - 4px);\n content: \"\";\n }\n }\n\n // Adjust scroll offset for headlines of level 4\n h4:target {\n scroll-margin-top: initial;\n\n // Anchor correction hack\n &::before {\n display: block;\n margin-top: -1 * px2rem(48px + 24px - 3px);\n padding-top: px2rem(48px + 24px - 3px);\n content: \"\";\n }\n }\n\n // Adjust scroll offset for headlines of level 5-6\n h5:target,\n h6:target {\n scroll-margin-top: initial;\n\n // Anchor correction hack\n &::before {\n display: block;\n margin-top: -1 * px2rem(48px + 24px);\n padding-top: px2rem(48px + 24px);\n content: \"\";\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Arithmatex container\n div.arithmatex {\n overflow: auto;\n\n // [mobile -]: Align with body copy\n @include break-to-device(mobile) {\n margin: 0 px2rem(-16px);\n }\n\n // Arithmatex content\n > * {\n width: min-content;\n // stylelint-disable-next-line declaration-no-important\n margin: 1em auto !important;\n padding: 0 px2rem(16px);\n touch-action: auto;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Deletion, addition or comment\n del.critic,\n ins.critic,\n .critic.comment {\n box-decoration-break: clone;\n }\n\n // Deletion\n del.critic {\n background-color: var(--md-typeset-del-color);\n }\n\n // Addition\n ins.critic {\n background-color: var(--md-typeset-ins-color);\n }\n\n // Comment\n .critic.comment {\n color: var(--md-code-hl-comment-color);\n\n // Comment opening mark\n &::before {\n content: \"/* \";\n }\n\n // Comment closing mark\n &::after {\n content: \" */\";\n }\n }\n\n // Critic block\n .critic.block {\n display: block;\n margin: 1em 0;\n padding-right: px2rem(16px);\n padding-left: px2rem(16px);\n overflow: auto;\n box-shadow: none;\n\n // Adjust spacing on first child\n > :first-child {\n margin-top: 0.5em;\n }\n\n // Adjust spacing on last child\n > :last-child {\n margin-bottom: 0.5em;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n --md-details-icon: svg-load(\"material/chevron-right.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Details\n details {\n @extend .admonition;\n\n display: flow-root;\n padding-top: 0;\n overflow: visible;\n\n // Details title icon - rotate icon on transition to open state\n &[open] > summary::after {\n transform: rotate(90deg);\n }\n\n // Adjust spacing for details in closed state\n &:not([open]) {\n padding-bottom: 0;\n box-shadow: none;\n\n // Hack: we cannot set `overflow: hidden` on the `details` element (which\n // is why we set it to `overflow: visible`, as the outline would not be\n // visible when focusing. Therefore, we must set the border radius on the\n // summary explicitly.\n > summary {\n border-radius: px2rem(2px);\n }\n }\n\n // Hack: omit margin collapse\n &::after {\n display: table;\n content: \"\";\n }\n }\n\n // Details title\n summary {\n @extend .admonition-title;\n\n display: block;\n min-height: px2rem(20px);\n padding: px2rem(8px) px2rem(36px) px2rem(8px) px2rem(40px);\n border-top-left-radius: px2rem(2px);\n border-top-right-radius: px2rem(2px);\n cursor: pointer;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n padding: px2rem(8px) px2rem(44px) px2rem(8px) px2rem(36px);\n }\n\n // Hide outline for pointer devices\n &:not(.focus-visible) {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n }\n\n // Details marker\n &::after {\n position: absolute;\n top: px2rem(8px);\n right: px2rem(8px);\n width: px2rem(20px);\n height: px2rem(20px);\n background-color: currentColor;\n mask-image: var(--md-details-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n transform: rotate(0deg);\n transition: transform 250ms;\n content: \"\";\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: initial;\n left: px2rem(8px);\n transform: rotate(180deg);\n }\n }\n\n // Hide native details marker\n &::marker,\n &::-webkit-details-marker {\n display: none;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Emoji and icon container\n .emojione,\n .twemoji,\n .gemoji {\n display: inline-flex;\n height: px2em(18px);\n vertical-align: text-top;\n\n // Icon - inlined via mkdocs-material-extensions\n svg {\n width: px2em(18px);\n max-height: 100%;\n fill: currentColor;\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules: syntax highlighting\n// ----------------------------------------------------------------------------\n\n// Code block\n.highlight {\n .o, // Operator\n .ow { // Operator, word\n color: var(--md-code-hl-operator-color);\n }\n\n .p { // Punctuation\n color: var(--md-code-hl-punctuation-color);\n }\n\n .cpf, // Comment, preprocessor file\n .l, // Literal\n .s, // Literal, string\n .sb, // Literal, string backticks\n .sc, // Literal, string char\n .s2, // Literal, string double\n .si, // Literal, string interpol\n .s1, // Literal, string single\n .ss { // Literal, string symbol\n color: var(--md-code-hl-string-color);\n }\n\n .cp, // Comment, pre-processor\n .se, // Literal, string escape\n .sh, // Literal, string heredoc\n .sr, // Literal, string regex\n .sx { // Literal, string other\n color: var(--md-code-hl-special-color);\n }\n\n .m, // Number\n .mb, // Number, binary\n .mf, // Number, float\n .mh, // Number, hex\n .mi, // Number, integer\n .il, // Number, integer long\n .mo { // Number, octal\n color: var(--md-code-hl-number-color);\n }\n\n .k, // Keyword,\n .kd, // Keyword, declaration\n .kn, // Keyword, namespace\n .kp, // Keyword, pseudo\n .kr, // Keyword, reserved\n .kt { // Keyword, type\n color: var(--md-code-hl-keyword-color);\n }\n\n .kc, // Keyword, constant\n .n { // Name\n color: var(--md-code-hl-name-color);\n }\n\n .no, // Name, constant\n .nb, // Name, builtin\n .bp { // Name, builtin pseudo\n color: var(--md-code-hl-constant-color);\n }\n\n .nc, // Name, class\n .ne, // Name, exception\n .nf, // Name, function\n .nn { // Name, namespace\n color: var(--md-code-hl-function-color);\n }\n\n .nd, // Name, decorator\n .ni, // Name, entity\n .nl, // Name, label\n .nt { // Name, tag\n color: var(--md-code-hl-keyword-color);\n }\n\n .c, // Comment\n .cm, // Comment, multiline\n .c1, // Comment, single\n .ch, // Comment, shebang\n .cs, // Comment, special\n .sd { // Literal, string doc\n color: var(--md-code-hl-comment-color);\n }\n\n .na, // Name, attribute\n .nv, // Variable,\n .vc, // Variable, class\n .vg, // Variable, global\n .vi { // Variable, instance\n color: var(--md-code-hl-variable-color);\n }\n\n .ge, // Generic, emph\n .gr, // Generic, error\n .gh, // Generic, heading\n .go, // Generic, output\n .gp, // Generic, prompt\n .gs, // Generic, strong\n .gu, // Generic, subheading\n .gt { // Generic, traceback\n color: var(--md-code-hl-generic-color);\n }\n\n .gd, // Diff, delete\n .gi { // Diff, insert\n margin: 0 px2em(-2px);\n padding: 0 px2em(2px);\n border-radius: px2rem(2px);\n }\n\n .gd { // Diff, delete\n background-color: var(--md-typeset-del-color);\n }\n\n .gi { // Diff, insert\n background-color: var(--md-typeset-ins-color);\n }\n\n // Highlighted line\n .hll {\n display: block;\n margin: 0 px2em(-16px, 13.6px);\n padding: 0 px2em(16px, 13.6px);\n background-color: var(--md-code-hl-color);\n }\n\n // Code block line numbers (inline)\n [data-linenos]::before {\n position: sticky;\n left: px2em(-16px, 13.6px);\n float: left;\n margin-right: px2em(16px, 13.6px);\n margin-left: px2em(-16px, 13.6px);\n padding-left: px2em(16px, 13.6px);\n color: var(--md-default-fg-color--light);\n background-color: var(--md-code-bg-color);\n box-shadow: px2rem(-1px) 0 var(--md-default-fg-color--lightest) inset;\n content: attr(data-linenos);\n user-select: none;\n }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: layout\n// ----------------------------------------------------------------------------\n\n// Code block with line numbers\n.highlighttable {\n display: flow-root;\n overflow: hidden;\n\n // Set table elements to block layout, because otherwise the whole flexbox\n // hacking won't work correctly\n tbody,\n td {\n display: block;\n padding: 0;\n }\n\n // We need to use flexbox layout, because otherwise it's not possible to\n // make the code container scroll while keeping the line numbers static\n tr {\n display: flex;\n }\n\n // The pre tags are nested inside a table, so we need to omit the margin\n // because it collapses below all the overflows\n pre {\n margin: 0;\n }\n\n // Code block line numbers - disable user selection, so code can be easily\n // copied without accidentally also copying the line numbers\n .linenos {\n padding: px2em(10.5px, 13.6px) px2em(16px, 13.6px);\n padding-right: 0;\n font-size: px2em(13.6px);\n background-color: var(--md-code-bg-color);\n user-select: none;\n }\n\n // Code block line numbers container\n .linenodiv {\n padding-right: px2em(8px, 13.6px);\n box-shadow: px2rem(-1px) 0 var(--md-default-fg-color--lightest) inset;\n\n // Adjust colors and alignment\n pre {\n color: var(--md-default-fg-color--light);\n text-align: right;\n }\n }\n\n // Code block container - stretch to remaining space\n .code {\n flex: 1;\n overflow: hidden;\n }\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Code block with line numbers\n .highlighttable {\n margin: 1em 0;\n direction: ltr;\n border-radius: px2rem(2px);\n\n // Omit rounded borders on contained code block\n code {\n border-radius: 0;\n }\n }\n\n // [mobile -]: Align with body copy\n @include break-to-device(mobile) {\n\n // Top-level code block\n > .highlight {\n margin: 1em px2rem(-16px);\n\n // Highlighted line\n .hll {\n margin: 0 px2rem(-16px);\n padding: 0 px2rem(16px);\n }\n\n // Omit rounded borders\n code {\n border-radius: 0;\n }\n }\n\n // Top-level code block with line numbers\n > .highlighttable {\n margin: 1em px2rem(-16px);\n border-radius: 0;\n\n // Highlighted line\n .hll {\n margin: 0 px2rem(-16px);\n padding: 0 px2rem(16px);\n }\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Tabbed block content\n .tabbed-content {\n display: none;\n order: 99;\n width: 100%;\n box-shadow: 0 px2rem(-1px) var(--md-default-fg-color--lightest);\n\n // [print]: Show all tabs (even hidden ones) when printing\n @media print {\n display: block;\n order: initial;\n }\n\n // Code block is the only child of a tab - remove margin and mirror\n // previous (now deprecated) SuperFences code block grouping behavior\n > pre:only-child,\n > .highlight:only-child pre,\n > .highlighttable:only-child {\n margin: 0;\n\n // Omit rounded borders\n > code {\n border-top-left-radius: 0;\n border-top-right-radius: 0;\n }\n }\n\n // Adjust spacing for nested tab\n > .tabbed-set {\n margin: 0;\n }\n }\n\n // Tabbed block container\n .tabbed-set {\n position: relative;\n display: flex;\n flex-wrap: wrap;\n margin: 1em 0;\n border-radius: px2rem(2px);\n\n // Tab radio button - the Tabbed extension will generate radio buttons with\n // labels, so tabs can be triggered without the necessity for JavaScript.\n // This is pretty cool, as it has great accessibility out-of-the box, so\n // we just hide the radio button and toggle the label color for indication.\n > input {\n position: absolute;\n width: 0;\n height: 0;\n opacity: 0;\n\n // Tab label for checked radio button\n &:checked + label {\n color: var(--md-accent-fg-color);\n border-color: var(--md-accent-fg-color);\n\n // Show tabbed block content\n + .tabbed-content {\n display: block;\n }\n }\n\n // Tab label on focus\n &:focus + label {\n outline-style: auto;\n outline-color: var(--md-accent-fg-color);\n }\n\n // Hide outline for pointer devices\n &:not(.focus-visible) + label {\n outline: none;\n -webkit-tap-highlight-color: transparent;\n }\n }\n\n // Tab label\n > label {\n z-index: 1;\n width: auto;\n padding: px2em(12px, 12.8px) 1.25em px2em(10px, 12.8px);\n color: var(--md-default-fg-color--light);\n font-weight: 700;\n font-size: px2rem(12.8px);\n border-bottom: px2rem(2px) solid transparent;\n cursor: pointer;\n transition: color 250ms;\n\n // Tab label on hover\n &:hover {\n color: var(--md-accent-fg-color);\n }\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Icon definitions\n:root {\n --md-tasklist-icon:\n svg-load(\"octicons/check-circle-fill-24.svg\");\n --md-tasklist-icon--checked:\n svg-load(\"octicons/check-circle-fill-24.svg\");\n}\n\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // Tasklist item\n .task-list-item {\n position: relative;\n list-style-type: none;\n\n // Make checkbox items align with normal list items, but position\n // everything in ems for correct layout at smaller font sizes\n [type=\"checkbox\"] {\n position: absolute;\n top: 0.45em;\n left: -2em;\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: -2em;\n left: initial;\n }\n }\n }\n\n // Hide native checkbox, when custom classes are enabled\n .task-list-control [type=\"checkbox\"] {\n z-index: -1;\n opacity: 0;\n }\n\n // Tasklist indicator in unchecked state\n .task-list-indicator::before {\n position: absolute;\n top: 0.15em;\n left: px2em(-24px);\n width: px2em(20px);\n height: px2em(20px);\n background-color: var(--md-default-fg-color--lightest);\n mask-image: var(--md-tasklist-icon);\n mask-repeat: no-repeat;\n mask-size: contain;\n content: \"\";\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n right: px2em(-24px);\n left: initial;\n }\n }\n\n // Tasklist indicator in checked state\n [type=\"checkbox\"]:checked + .task-list-indicator::before {\n background-color: $clr-green-a400;\n mask-image: var(--md-tasklist-icon--checked);\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Scoped in typesetted content to match specificity of regular content\n.md-typeset {\n\n // [tablet +]: Allow for rendering content as sidebars\n @include break-from-device(tablet) {\n\n // Modifier to float block elements\n .inline {\n float: left;\n width: px2rem(234px);\n margin-top: 0;\n margin-right: px2rem(16px);\n margin-bottom: px2rem(16px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n float: right;\n margin-right: 0;\n margin-left: px2rem(16px);\n }\n\n // Modifier to move to end (ltr: right, rtl: left)\n &.end {\n float: right;\n margin-right: 0;\n margin-left: px2rem(16px);\n\n // Adjust for right-to-left languages\n [dir=\"rtl\"] & {\n float: left;\n margin-right: px2rem(16px);\n margin-left: 0;\n }\n }\n }\n }\n}\n"]} \ No newline at end of file diff --git a/modules/freetype2/docs/reference/assets/stylesheets/palette.f1a3b89f.min.css b/modules/freetype2/docs/reference/assets/stylesheets/palette.f1a3b89f.min.css new file mode 100644 index 0000000000..8bbfcfe69a --- /dev/null +++ b/modules/freetype2/docs/reference/assets/stylesheets/palette.f1a3b89f.min.css @@ -0,0 +1,2 @@ +[data-md-color-accent=red]{--md-accent-fg-color:#ff1947;--md-accent-fg-color--transparent:rgba(255,25,71,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=pink]{--md-accent-fg-color:#f50056;--md-accent-fg-color--transparent:rgba(245,0,86,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=purple]{--md-accent-fg-color:#df41fb;--md-accent-fg-color--transparent:rgba(223,65,251,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=deep-purple]{--md-accent-fg-color:#7c4dff;--md-accent-fg-color--transparent:rgba(124,77,255,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=indigo]{--md-accent-fg-color:#526cfe;--md-accent-fg-color--transparent:rgba(82,108,254,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=blue]{--md-accent-fg-color:#4287ff;--md-accent-fg-color--transparent:rgba(66,135,255,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=light-blue]{--md-accent-fg-color:#0091eb;--md-accent-fg-color--transparent:rgba(0,145,235,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=cyan]{--md-accent-fg-color:#00bad6;--md-accent-fg-color--transparent:rgba(0,186,214,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=teal]{--md-accent-fg-color:#00bda4;--md-accent-fg-color--transparent:rgba(0,189,164,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=green]{--md-accent-fg-color:#00c753;--md-accent-fg-color--transparent:rgba(0,199,83,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=light-green]{--md-accent-fg-color:#63de17;--md-accent-fg-color--transparent:rgba(99,222,23,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-accent=lime]{--md-accent-fg-color:#b0eb00;--md-accent-fg-color--transparent:rgba(176,235,0,0.1);--md-accent-bg-color:rgba(0,0,0,0.87);--md-accent-bg-color--light:rgba(0,0,0,0.54)}[data-md-color-accent=yellow]{--md-accent-fg-color:#ffd500;--md-accent-fg-color--transparent:rgba(255,213,0,0.1);--md-accent-bg-color:rgba(0,0,0,0.87);--md-accent-bg-color--light:rgba(0,0,0,0.54)}[data-md-color-accent=amber]{--md-accent-fg-color:#fa0;--md-accent-fg-color--transparent:rgba(255,170,0,0.1);--md-accent-bg-color:rgba(0,0,0,0.87);--md-accent-bg-color--light:rgba(0,0,0,0.54)}[data-md-color-accent=orange]{--md-accent-fg-color:#ff9100;--md-accent-fg-color--transparent:rgba(255,145,0,0.1);--md-accent-bg-color:rgba(0,0,0,0.87);--md-accent-bg-color--light:rgba(0,0,0,0.54)}[data-md-color-accent=deep-orange]{--md-accent-fg-color:#ff6e42;--md-accent-fg-color--transparent:rgba(255,110,66,0.1);--md-accent-bg-color:#fff;--md-accent-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=red]{--md-primary-fg-color:#ef5552;--md-primary-fg-color--light:#e57171;--md-primary-fg-color--dark:#e53734;--md-primary-bg-color:#fff;--md-primary-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=pink]{--md-primary-fg-color:#e92063;--md-primary-fg-color--light:#ec417a;--md-primary-fg-color--dark:#c3185d;--md-primary-bg-color:#fff;--md-primary-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=purple]{--md-primary-fg-color:#ab47bd;--md-primary-fg-color--light:#bb69c9;--md-primary-fg-color--dark:#8c24a8;--md-primary-bg-color:#fff;--md-primary-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=deep-purple]{--md-primary-fg-color:#7e56c2;--md-primary-fg-color--light:#9574cd;--md-primary-fg-color--dark:#673ab6;--md-primary-bg-color:#fff;--md-primary-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=indigo]{--md-primary-fg-color:#4051b5;--md-primary-fg-color--light:#5d6cc0;--md-primary-fg-color--dark:#303fa1;--md-primary-bg-color:#fff;--md-primary-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=blue]{--md-primary-fg-color:#2094f3;--md-primary-fg-color--light:#42a5f5;--md-primary-fg-color--dark:#1975d2;--md-primary-bg-color:#fff;--md-primary-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=light-blue]{--md-primary-fg-color:#02a6f2;--md-primary-fg-color--light:#28b5f6;--md-primary-fg-color--dark:#0287cf;--md-primary-bg-color:#fff;--md-primary-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=cyan]{--md-primary-fg-color:#00bdd6;--md-primary-fg-color--light:#25c5da;--md-primary-fg-color--dark:#0097a8;--md-primary-bg-color:#fff;--md-primary-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=teal]{--md-primary-fg-color:#009485;--md-primary-fg-color--light:#26a699;--md-primary-fg-color--dark:#007a6c;--md-primary-bg-color:#fff;--md-primary-bg-color--light:hsla(0,0%,100%,0.7)}[data-md-color-primary=green]{--md-primary-fg-color:#4cae4f;--md-primary-fg-col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Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n@each $name, $color in (\n \"red\": $clr-red-a400,\n \"pink\": $clr-pink-a400,\n \"purple\": $clr-purple-a200,\n \"deep-purple\": $clr-deep-purple-a200,\n \"indigo\": $clr-indigo-a200,\n \"blue\": $clr-blue-a200,\n \"light-blue\": $clr-light-blue-a700,\n \"cyan\": $clr-cyan-a700,\n \"teal\": $clr-teal-a700,\n \"green\": $clr-green-a700,\n \"light-green\": $clr-light-green-a700,\n \"lime\": $clr-lime-a700,\n \"yellow\": $clr-yellow-a700,\n \"amber\": $clr-amber-a700,\n \"orange\": $clr-orange-a400,\n \"deep-orange\": $clr-deep-orange-a200\n) {\n\n // Color palette\n [data-md-color-accent=\"#{$name}\"] {\n --md-accent-fg-color: hsla(#{hex2hsl($color)}, 1);\n --md-accent-fg-color--transparent: hsla(#{hex2hsl($color)}, 0.1);\n\n // Inverted text for lighter shades\n @if index(\"lime\" \"yellow\" \"amber\" \"orange\", $name) {\n --md-accent-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-accent-bg-color--light: hsla(0, 0%, 0%, 0.54);\n } @else {\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n }\n }\n}\n","[data-md-color-accent=red] {\n --md-accent-fg-color: hsla(348, 100%, 55%, 1);\n --md-accent-fg-color--transparent: hsla(348, 100%, 55%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=pink] {\n --md-accent-fg-color: hsla(339, 100%, 48%, 1);\n --md-accent-fg-color--transparent: hsla(339, 100%, 48%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=purple] {\n --md-accent-fg-color: hsla(291, 96%, 62%, 1);\n --md-accent-fg-color--transparent: hsla(291, 96%, 62%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=deep-purple] {\n --md-accent-fg-color: hsla(256, 100%, 65%, 1);\n --md-accent-fg-color--transparent: hsla(256, 100%, 65%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=indigo] {\n --md-accent-fg-color: hsla(231, 99%, 66%, 1);\n --md-accent-fg-color--transparent: hsla(231, 99%, 66%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=blue] {\n --md-accent-fg-color: hsla(218, 100%, 63%, 1);\n --md-accent-fg-color--transparent: hsla(218, 100%, 63%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=light-blue] {\n --md-accent-fg-color: hsla(203, 100%, 46%, 1);\n --md-accent-fg-color--transparent: hsla(203, 100%, 46%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=cyan] {\n --md-accent-fg-color: hsla(188, 100%, 42%, 1);\n --md-accent-fg-color--transparent: hsla(188, 100%, 42%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=teal] {\n --md-accent-fg-color: hsla(172, 100%, 37%, 1);\n --md-accent-fg-color--transparent: hsla(172, 100%, 37%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=green] {\n --md-accent-fg-color: hsla(145, 100%, 39%, 1);\n --md-accent-fg-color--transparent: hsla(145, 100%, 39%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=light-green] {\n --md-accent-fg-color: hsla(97, 81%, 48%, 1);\n --md-accent-fg-color--transparent: hsla(97, 81%, 48%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-accent=lime] {\n --md-accent-fg-color: hsla(75, 100%, 46%, 1);\n --md-accent-fg-color--transparent: hsla(75, 100%, 46%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-accent-bg-color--light: hsla(0, 0%, 0%, 0.54);\n}\n\n[data-md-color-accent=yellow] {\n --md-accent-fg-color: hsla(50, 100%, 50%, 1);\n --md-accent-fg-color--transparent: hsla(50, 100%, 50%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-accent-bg-color--light: hsla(0, 0%, 0%, 0.54);\n}\n\n[data-md-color-accent=amber] {\n --md-accent-fg-color: hsla(40, 100%, 50%, 1);\n --md-accent-fg-color--transparent: hsla(40, 100%, 50%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-accent-bg-color--light: hsla(0, 0%, 0%, 0.54);\n}\n\n[data-md-color-accent=orange] {\n --md-accent-fg-color: hsla(34, 100%, 50%, 1);\n --md-accent-fg-color--transparent: hsla(34, 100%, 50%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-accent-bg-color--light: hsla(0, 0%, 0%, 0.54);\n}\n\n[data-md-color-accent=deep-orange] {\n --md-accent-fg-color: hsla(14, 100%, 63%, 1);\n --md-accent-fg-color--transparent: hsla(14, 100%, 63%, 0.1);\n --md-accent-bg-color: hsla(0, 0%, 100%, 1);\n --md-accent-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=red] {\n --md-primary-fg-color: hsla(1, 83%, 63%, 1);\n --md-primary-fg-color--light: hsla(0, 69%, 67%, 1);\n --md-primary-fg-color--dark: hsla(1, 77%, 55%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=pink] {\n --md-primary-fg-color: hsla(340, 82%, 52%, 1);\n --md-primary-fg-color--light: hsla(340, 82%, 59%, 1);\n --md-primary-fg-color--dark: hsla(336, 78%, 43%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=purple] {\n --md-primary-fg-color: hsla(291, 47%, 51%, 1);\n --md-primary-fg-color--light: hsla(291, 47%, 60%, 1);\n --md-primary-fg-color--dark: hsla(287, 65%, 40%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=deep-purple] {\n --md-primary-fg-color: hsla(262, 47%, 55%, 1);\n --md-primary-fg-color--light: hsla(262, 47%, 63%, 1);\n --md-primary-fg-color--dark: hsla(262, 52%, 47%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=indigo] {\n --md-primary-fg-color: hsla(231, 48%, 48%, 1);\n --md-primary-fg-color--light: hsla(231, 44%, 56%, 1);\n --md-primary-fg-color--dark: hsla(232, 54%, 41%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=blue] {\n --md-primary-fg-color: hsla(207, 90%, 54%, 1);\n --md-primary-fg-color--light: hsla(207, 90%, 61%, 1);\n --md-primary-fg-color--dark: hsla(210, 79%, 46%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=light-blue] {\n --md-primary-fg-color: hsla(199, 98%, 48%, 1);\n --md-primary-fg-color--light: hsla(199, 92%, 56%, 1);\n --md-primary-fg-color--dark: hsla(201, 98%, 41%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=cyan] {\n --md-primary-fg-color: hsla(187, 100%, 42%, 1);\n --md-primary-fg-color--light: hsla(187, 71%, 50%, 1);\n --md-primary-fg-color--dark: hsla(186, 100%, 33%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=teal] {\n --md-primary-fg-color: hsla(174, 100%, 29%, 1);\n --md-primary-fg-color--light: hsla(174, 63%, 40%, 1);\n --md-primary-fg-color--dark: hsla(173, 100%, 24%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=green] {\n --md-primary-fg-color: hsla(122, 39%, 49%, 1);\n --md-primary-fg-color--light: hsla(123, 38%, 57%, 1);\n --md-primary-fg-color--dark: hsla(123, 43%, 39%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=light-green] {\n --md-primary-fg-color: hsla(88, 50%, 53%, 1);\n --md-primary-fg-color--light: hsla(88, 50%, 60%, 1);\n --md-primary-fg-color--dark: hsla(92, 48%, 42%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=lime] {\n --md-primary-fg-color: hsla(66, 70%, 54%, 1);\n --md-primary-fg-color--light: hsla(66, 70%, 61%, 1);\n --md-primary-fg-color--dark: hsla(62, 61%, 44%, 1);\n --md-primary-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);\n}\n\n[data-md-color-primary=yellow] {\n --md-primary-fg-color: hsla(54, 100%, 62%, 1);\n --md-primary-fg-color--light: hsla(54, 100%, 67%, 1);\n --md-primary-fg-color--dark: hsla(43, 96%, 58%, 1);\n --md-primary-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);\n}\n\n[data-md-color-primary=amber] {\n --md-primary-fg-color: hsla(45, 100%, 51%, 1);\n --md-primary-fg-color--light: hsla(45, 100%, 58%, 1);\n --md-primary-fg-color--dark: hsla(38, 100%, 50%, 1);\n --md-primary-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);\n}\n\n[data-md-color-primary=orange] {\n --md-primary-fg-color: hsla(36, 100%, 57%, 1);\n --md-primary-fg-color--light: hsla(36, 100%, 57%, 1);\n --md-primary-fg-color--dark: hsla(33, 100%, 49%, 1);\n --md-primary-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);\n}\n\n[data-md-color-primary=deep-orange] {\n --md-primary-fg-color: hsla(14, 100%, 63%, 1);\n --md-primary-fg-color--light: hsla(14, 100%, 70%, 1);\n --md-primary-fg-color--dark: hsla(14, 91%, 54%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=brown] {\n --md-primary-fg-color: hsla(16, 25%, 38%, 1);\n --md-primary-fg-color--light: hsla(16, 18%, 47%, 1);\n --md-primary-fg-color--dark: hsla(14, 26%, 29%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=grey] {\n --md-primary-fg-color: hsla(0, 0%, 46%, 1);\n --md-primary-fg-color--light: hsla(0, 0%, 62%, 1);\n --md-primary-fg-color--dark: hsla(0, 0%, 38%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=blue-grey] {\n --md-primary-fg-color: hsla(199, 18%, 40%, 1);\n --md-primary-fg-color--light: hsla(200, 18%, 46%, 1);\n --md-primary-fg-color--dark: hsla(199, 18%, 33%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n}\n\n[data-md-color-primary=white] {\n --md-primary-fg-color: hsla(0, 0%, 100%, 1);\n --md-primary-fg-color--light: hsla(0, 0%, 100%, 0.7);\n --md-primary-fg-color--dark: hsla(0, 0%, 0%, 0.07);\n --md-primary-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);\n --md-typeset-a-color: hsla(231, 48%, 48%, 1);\n}\n@media screen and (min-width: 60em) {\n [data-md-color-primary=white] .md-search__input {\n background-color: rgba(0, 0, 0, 0.07);\n }\n [data-md-color-primary=white] .md-search__input + .md-search__icon {\n color: rgba(0, 0, 0, 0.87);\n }\n [data-md-color-primary=white] .md-search__input::placeholder {\n color: rgba(0, 0, 0, 0.54);\n }\n [data-md-color-primary=white] .md-search__input:hover {\n background-color: rgba(0, 0, 0, 0.32);\n }\n}\n@media screen and (min-width: 76.25em) {\n [data-md-color-primary=white] .md-tabs {\n border-bottom: 0.05rem solid rgba(0, 0, 0, 0.07);\n }\n}\n\n[data-md-color-primary=black] {\n --md-primary-fg-color: hsla(0, 0%, 0%, 1);\n --md-primary-fg-color--light: hsla(0, 0%, 0%, 0.54);\n --md-primary-fg-color--dark: hsla(0, 0%, 0%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n --md-typeset-a-color: hsla(231, 48%, 48%, 1);\n}\n[data-md-color-primary=black] .md-header {\n background-color: black;\n}\n@media screen and (max-width: 59.9375em) {\n [data-md-color-primary=black] .md-nav__source {\n background-color: rgba(0, 0, 0, 0.87);\n }\n}\n@media screen and (min-width: 60em) {\n [data-md-color-primary=black] .md-search__input {\n background-color: rgba(255, 255, 255, 0.12);\n }\n [data-md-color-primary=black] .md-search__input:hover {\n background-color: rgba(255, 255, 255, 0.3);\n }\n}\n@media screen and (max-width: 76.1875em) {\n html [data-md-color-primary=black] .md-nav--primary .md-nav__title[for=__drawer] {\n background-color: black;\n }\n}\n@media screen and (min-width: 76.25em) {\n [data-md-color-primary=black] .md-tabs {\n background-color: black;\n }\n}\n\n@media screen {\n [data-md-color-scheme=slate] {\n --md-hue: 232;\n --md-default-fg-color: hsla(var(--md-hue), 75%, 95%, 1);\n --md-default-fg-color--light: hsla(var(--md-hue), 75%, 90%, 0.62);\n --md-default-fg-color--lighter: hsla(var(--md-hue), 75%, 90%, 0.32);\n --md-default-fg-color--lightest: hsla(var(--md-hue), 75%, 90%, 0.12);\n --md-default-bg-color: hsla(var(--md-hue), 15%, 21%, 1);\n --md-default-bg-color--light: hsla(var(--md-hue), 15%, 21%, 0.54);\n --md-default-bg-color--lighter: hsla(var(--md-hue), 15%, 21%, 0.26);\n --md-default-bg-color--lightest: hsla(var(--md-hue), 15%, 21%, 0.07);\n --md-code-fg-color: hsla(var(--md-hue), 18%, 86%, 1);\n --md-code-bg-color: hsla(var(--md-hue), 15%, 15%, 1);\n --md-code-hl-color: hsla(218, 100%, 63%, 0.15);\n --md-code-hl-number-color: hsla(6, 74%, 63%, 1);\n --md-code-hl-special-color: hsla(340, 83%, 66%, 1);\n --md-code-hl-function-color: hsla(291, 57%, 65%, 1);\n --md-code-hl-constant-color: hsla(250, 62%, 70%, 1);\n --md-code-hl-keyword-color: hsla(219, 66%, 64%, 1);\n --md-code-hl-string-color: hsla(150, 58%, 44%, 1);\n --md-code-hl-name-color: var(--md-code-fg-color);\n --md-code-hl-operator-color: var(--md-default-fg-color--light);\n --md-code-hl-punctuation-color: var(--md-default-fg-color--light);\n --md-code-hl-comment-color: var(--md-default-fg-color--light);\n --md-code-hl-generic-color: var(--md-default-fg-color--light);\n --md-code-hl-variable-color: var(--md-default-fg-color--light);\n --md-typeset-color: var(--md-default-fg-color);\n --md-typeset-a-color: var(--md-primary-fg-color);\n --md-typeset-mark-color: hsla(218, 100%, 63%, 0.3);\n --md-typeset-kbd-color: hsla(var(--md-hue), 15%, 94%, 0.12);\n --md-typeset-kbd-accent-color: hsla(var(--md-hue), 15%, 94%, 0.2);\n --md-typeset-kbd-border-color: hsla(var(--md-hue), 15%, 14%, 1);\n --md-admonition-bg-color: hsla(var(--md-hue), 0%, 100%, 0.025);\n --md-footer-bg-color: hsla(var(--md-hue), 15%, 12%, 0.87);\n --md-footer-bg-color--dark: hsla(var(--md-hue), 15%, 10%, 1);\n }\n [data-md-color-scheme=slate][data-md-color-primary=black], [data-md-color-scheme=slate][data-md-color-primary=white] {\n --md-typeset-a-color: hsla(231, 44%, 56%, 1);\n }\n}\n\n/*# sourceMappingURL=palette.css.map */","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n@each $name, $colors in (\n \"red\": $clr-red-400 $clr-red-300 $clr-red-600,\n \"pink\": $clr-pink-500 $clr-pink-400 $clr-pink-700,\n \"purple\": $clr-purple-400 $clr-purple-300 $clr-purple-600,\n \"deep-purple\": $clr-deep-purple-400 $clr-deep-purple-300 $clr-deep-purple-500,\n \"indigo\": $clr-indigo-500 $clr-indigo-400 $clr-indigo-700,\n \"blue\": $clr-blue-500 $clr-blue-400 $clr-blue-700,\n \"light-blue\": $clr-light-blue-500 $clr-light-blue-400 $clr-light-blue-700,\n \"cyan\": $clr-cyan-500 $clr-cyan-400 $clr-cyan-700,\n \"teal\": $clr-teal-500 $clr-teal-400 $clr-teal-700,\n \"green\": $clr-green-500 $clr-green-400 $clr-green-700,\n \"light-green\": $clr-light-green-500 $clr-light-green-400 $clr-light-green-700,\n \"lime\": $clr-lime-500 $clr-lime-400 $clr-lime-700,\n \"yellow\": $clr-yellow-500 $clr-yellow-400 $clr-yellow-700,\n \"amber\": $clr-amber-500 $clr-amber-400 $clr-amber-700,\n \"orange\": $clr-orange-400 $clr-orange-400 $clr-orange-600,\n \"deep-orange\": $clr-deep-orange-400 $clr-deep-orange-300 $clr-deep-orange-600,\n \"brown\": $clr-brown-500 $clr-brown-400 $clr-brown-700,\n \"grey\": $clr-grey-600 $clr-grey-500 $clr-grey-700,\n \"blue-grey\": $clr-blue-grey-600 $clr-blue-grey-500 $clr-blue-grey-700\n) {\n\n // Color palette\n [data-md-color-primary=\"#{$name}\"] {\n --md-primary-fg-color: hsla(#{hex2hsl(nth($colors, 1))}, 1);\n --md-primary-fg-color--light: hsla(#{hex2hsl(nth($colors, 2))}, 1);\n --md-primary-fg-color--dark: hsla(#{hex2hsl(nth($colors, 3))}, 1);\n\n // Inverted text for lighter shades\n @if index(\"lime\" \"yellow\" \"amber\" \"orange\", $name) {\n --md-primary-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);\n } @else {\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n }\n }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: white\n// ----------------------------------------------------------------------------\n\n// Color palette\n[data-md-color-primary=\"white\"] {\n --md-primary-fg-color: hsla(0, 0%, 100%, 1);\n --md-primary-fg-color--light: hsla(0, 0%, 100%, 0.7);\n --md-primary-fg-color--dark: hsla(0, 0%, 0%, 0.07);\n --md-primary-bg-color: hsla(0, 0%, 0%, 0.87);\n --md-primary-bg-color--light: hsla(0, 0%, 0%, 0.54);\n\n // Typeset color shades\n --md-typeset-a-color: hsla(#{hex2hsl($clr-indigo-500)}, 1);\n\n // [tablet portrait +]: Header-embedded search\n @include break-from-device(tablet landscape) {\n\n // Search input\n .md-search__input {\n background-color: hsla(0, 0%, 0%, 0.07);\n\n // Search icon color\n + .md-search__icon {\n color: hsla(0, 0%, 0%, 0.87);\n }\n\n // Placeholder color\n &::placeholder {\n color: hsla(0, 0%, 0%, 0.54);\n }\n\n // Search input on hover\n &:hover {\n background-color: hsla(0, 0%, 0%, 0.32);\n }\n }\n }\n\n // [screen +]: Add bottom border for tabs\n @include break-from-device(screen) {\n\n // Navigation tabs\n .md-tabs {\n border-bottom: px2rem(1px) solid hsla(0, 0%, 0%, 0.07);\n }\n }\n}\n\n// ----------------------------------------------------------------------------\n// Rules: black\n// ----------------------------------------------------------------------------\n\n// Color palette\n[data-md-color-primary=\"black\"] {\n --md-primary-fg-color: hsla(0, 0%, 0%, 1);\n --md-primary-fg-color--light: hsla(0, 0%, 0%, 0.54);\n --md-primary-fg-color--dark: hsla(0, 0%, 0%, 1);\n --md-primary-bg-color: hsla(0, 0%, 100%, 1);\n --md-primary-bg-color--light: hsla(0, 0%, 100%, 0.7);\n\n // Text color shades\n --md-typeset-a-color: hsla(#{hex2hsl($clr-indigo-500)}, 1);\n\n // Header\n .md-header {\n background-color: hsla(0, 0%, 0%, 1);\n }\n\n // [tablet portrait -]: Layered navigation\n @include break-to-device(tablet portrait) {\n\n // Repository information container\n .md-nav__source {\n background-color: hsla(0, 0%, 0%, 0.87);\n }\n }\n\n // [tablet landscape +]: Header-embedded search\n @include break-from-device(tablet landscape) {\n\n // Search input\n .md-search__input {\n background-color: hsla(0, 0%, 100%, 0.12);\n\n // Search form on hover\n &:hover {\n background-color: hsla(0, 0%, 100%, 0.3);\n }\n }\n }\n\n // [tablet -]: Layered navigation\n @include break-to-device(tablet) {\n\n // Site title in main navigation\n html & .md-nav--primary .md-nav__title[for=\"__drawer\"] {\n background-color: hsla(0, 0%, 0%, 1);\n }\n }\n\n // [screen +]: Set background color for tabs\n @include break-from-device(screen) {\n\n // Navigation tabs\n .md-tabs {\n background-color: hsla(0, 0%, 0%, 1);\n }\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Variables\n// ----------------------------------------------------------------------------\n\n///\n/// Device-specific breakpoints\n///\n/// @example\n/// $break-devices: (\n/// mobile: (\n/// portrait: 220px 479px,\n/// landscape: 480px 719px\n/// ),\n/// tablet: (\n/// portrait: 720px 959px,\n/// landscape: 960px 1219px\n/// ),\n/// screen: (\n/// small: 1220px 1599px,\n/// medium: 1600px 1999px,\n/// large: 2000px\n/// )\n/// );\n///\n$break-devices: () !default;\n\n// ----------------------------------------------------------------------------\n// Helpers\n// ----------------------------------------------------------------------------\n\n///\n/// Choose minimum and maximum device widths\n///\n@function break-select-min-max($devices) {\n $min: 1000000;\n $max: 0;\n @each $key, $value in $devices {\n @while type-of($value) == map {\n $value: break-select-min-max($value);\n }\n @if type-of($value) == list {\n @each $number in $value {\n @if type-of($number) == number {\n $min: min($number, $min);\n @if $max {\n $max: max($number, $max);\n }\n } @else {\n @error \"Invalid number: #{$number}\";\n }\n }\n } @else if type-of($value) == number {\n $min: min($value, $min);\n $max: null;\n } @else {\n @error \"Invalid value: #{$value}\";\n }\n }\n @return $min, $max;\n}\n\n///\n/// Select minimum and maximum widths for a device breakpoint\n///\n@function break-select-device($device) {\n $current: $break-devices;\n @for $n from 1 through length($device) {\n @if type-of($current) == map {\n $current: map-get($current, nth($device, $n));\n } @else {\n @error \"Invalid device map: #{$devices}\";\n }\n }\n @if type-of($current) == list or type-of($current) == number {\n $current: (default: $current);\n }\n @return break-select-min-max($current);\n}\n\n// ----------------------------------------------------------------------------\n// Mixins\n// ----------------------------------------------------------------------------\n\n///\n/// A minimum-maximum media query breakpoint\n///\n@mixin break-at($breakpoint) {\n @if type-of($breakpoint) == number {\n @media screen and (min-width: $breakpoint) {\n @content;\n }\n } @else if type-of($breakpoint) == list {\n $min: nth($breakpoint, 1);\n $max: nth($breakpoint, 2);\n @if type-of($min) == number and type-of($max) == number {\n @media screen and (min-width: $min) and (max-width: $max) {\n @content;\n }\n } @else {\n @error \"Invalid breakpoint: #{$breakpoint}\";\n }\n } @else {\n @error \"Invalid breakpoint: #{$breakpoint}\";\n }\n}\n\n///\n/// An orientation media query breakpoint\n///\n@mixin break-at-orientation($breakpoint) {\n @if type-of($breakpoint) == string {\n @media screen and (orientation: $breakpoint) {\n @content;\n }\n } @else {\n @error \"Invalid breakpoint: #{$breakpoint}\";\n }\n}\n\n///\n/// A maximum-aspect-ratio media query breakpoint\n///\n@mixin break-at-ratio($breakpoint) {\n @if type-of($breakpoint) == number {\n @media screen and (max-aspect-ratio: $breakpoint) {\n @content;\n }\n } @else {\n @error \"Invalid breakpoint: #{$breakpoint}\";\n }\n}\n\n///\n/// A minimum-maximum media query device breakpoint\n///\n@mixin break-at-device($device) {\n @if type-of($device) == string {\n $device: $device,;\n }\n @if type-of($device) == list {\n $breakpoint: break-select-device($device);\n @if nth($breakpoint, 2) {\n $min: nth($breakpoint, 1);\n $max: nth($breakpoint, 2);\n\n @media screen and (min-width: $min) and (max-width: $max) {\n @content;\n }\n } @else {\n @error \"Invalid device: #{$device}\";\n }\n } @else {\n @error \"Invalid device: #{$device}\";\n }\n}\n\n///\n/// A minimum media query device breakpoint\n///\n@mixin break-from-device($device) {\n @if type-of($device) == string {\n $device: $device,;\n }\n @if type-of($device) == list {\n $breakpoint: break-select-device($device);\n $min: nth($breakpoint, 1);\n\n @media screen and (min-width: $min) {\n @content;\n }\n } @else {\n @error \"Invalid device: #{$device}\";\n }\n}\n\n///\n/// A maximum media query device breakpoint\n///\n@mixin break-to-device($device) {\n @if type-of($device) == string {\n $device: $device,;\n }\n @if type-of($device) == list {\n $breakpoint: break-select-device($device);\n $max: nth($breakpoint, 2);\n\n @media screen and (max-width: $max) {\n @content;\n }\n } @else {\n @error \"Invalid device: #{$device}\";\n }\n}\n","////\n/// Copyright (c) 2016-2021 Martin Donath \n///\n/// Permission is hereby granted, free of charge, to any person obtaining a\n/// copy of this software and associated documentation files (the \"Software\"),\n/// to deal in the Software without restriction, including without limitation\n/// the rights to use, copy, modify, merge, publish, distribute, sublicense,\n/// and/or sell copies of the Software, and to permit persons to whom the\n/// Software is furnished to do so, subject to the following conditions:\n///\n/// The above copyright notice and this permission notice shall be included in\n/// all copies or substantial portions of the Software.\n///\n/// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL\n/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n/// DEALINGS\n////\n\n// ----------------------------------------------------------------------------\n// Rules\n// ----------------------------------------------------------------------------\n\n// Only use dark mode on screens\n@media screen {\n\n // Slate theme, i.e. dark mode\n [data-md-color-scheme=\"slate\"] {\n\n // Slate's hue in the range [0,360] - change this variable to alter the tone\n // of the theme, e.g. to make it more redish or greenish. This is a slate-\n // specific variable, but the same approach may be adapted to custom themes.\n --md-hue: 232;\n\n // Default color shades\n --md-default-fg-color: hsla(var(--md-hue), 75%, 95%, 1);\n --md-default-fg-color--light: hsla(var(--md-hue), 75%, 90%, 0.62);\n --md-default-fg-color--lighter: hsla(var(--md-hue), 75%, 90%, 0.32);\n --md-default-fg-color--lightest: hsla(var(--md-hue), 75%, 90%, 0.12);\n --md-default-bg-color: hsla(var(--md-hue), 15%, 21%, 1);\n --md-default-bg-color--light: hsla(var(--md-hue), 15%, 21%, 0.54);\n --md-default-bg-color--lighter: hsla(var(--md-hue), 15%, 21%, 0.26);\n --md-default-bg-color--lightest: hsla(var(--md-hue), 15%, 21%, 0.07);\n\n // Code color shades\n --md-code-fg-color: hsla(var(--md-hue), 18%, 86%, 1);\n --md-code-bg-color: hsla(var(--md-hue), 15%, 15%, 1);\n\n // Code highlighting color shades\n --md-code-hl-color: hsla(#{hex2hsl($clr-blue-a200)}, 0.15);\n --md-code-hl-number-color: hsla(6, 74%, 63%, 1);\n --md-code-hl-special-color: hsla(340, 83%, 66%, 1);\n --md-code-hl-function-color: hsla(291, 57%, 65%, 1);\n --md-code-hl-constant-color: hsla(250, 62%, 70%, 1);\n --md-code-hl-keyword-color: hsla(219, 66%, 64%, 1);\n --md-code-hl-string-color: hsla(150, 58%, 44%, 1);\n --md-code-hl-name-color: var(--md-code-fg-color);\n --md-code-hl-operator-color: var(--md-default-fg-color--light);\n --md-code-hl-punctuation-color: var(--md-default-fg-color--light);\n --md-code-hl-comment-color: var(--md-default-fg-color--light);\n --md-code-hl-generic-color: var(--md-default-fg-color--light);\n --md-code-hl-variable-color: var(--md-default-fg-color--light);\n\n // Typeset color shades\n --md-typeset-color: var(--md-default-fg-color);\n\n // Typeset `a` color shades\n --md-typeset-a-color: var(--md-primary-fg-color);\n\n // Typeset `mark` color shades\n --md-typeset-mark-color: hsla(#{hex2hsl($clr-blue-a200)}, 0.3);\n\n // Typeset `kbd` color shades\n --md-typeset-kbd-color: hsla(var(--md-hue), 15%, 94%, 0.12);\n --md-typeset-kbd-accent-color: hsla(var(--md-hue), 15%, 94%, 0.2);\n --md-typeset-kbd-border-color: hsla(var(--md-hue), 15%, 14%, 1);\n\n // Admonition color shades\n --md-admonition-bg-color: hsla(var(--md-hue), 0%, 100%, 0.025);\n\n // Footer color shades\n --md-footer-bg-color: hsla(var(--md-hue), 15%, 12%, 0.87);\n --md-footer-bg-color--dark: hsla(var(--md-hue), 15%, 10%, 1);\n\n // Black and white primary colors\n &[data-md-color-primary=\"black\"],\n &[data-md-color-primary=\"white\"] {\n\n // Typeset color shades\n --md-typeset-a-color: hsla(#{hex2hsl($clr-indigo-400)}, 1);\n }\n }\n}\n"]} \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-auto_hinter.html b/modules/freetype2/docs/reference/ft2-auto_hinter.html new file mode 100644 index 0000000000..78b18576f2 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-auto_hinter.html @@ -0,0 +1,1359 @@ + + + + + + + + + + + + + + + + + + + + + The auto-hinter - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Controlling FreeType Modules » The auto-hinter

    +
    +

    The auto-hinter

    +

    Synopsis

    +

    While FreeType's auto-hinter doesn't expose API functions by itself, it is possible to control its behaviour with FT_Property_Set and FT_Property_Get. The following lists the available properties together with the necessary macros and structures.

    +

    Note that the auto-hinter's module name is ‘autofitter’ for historical reasons.

    +

    Available properties are increase-x-height, no-stem-darkening (experimental), darkening-parameters (experimental), glyph-to-script-map (experimental), fallback-script (experimental), and default-script (experimental), as documented in the ‘Driver properties’ section.

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    FreeType » Docs » Core API » Basic Data Types

    +
    +

    Basic Data Types

    +

    Synopsis

    +

    This section contains the basic data types defined by FreeType 2, ranging from simple scalar types to bitmap descriptors. More font-specific structures are defined in a different section. Note that FreeType does not use floating-point data types. Fractional values are represented by fixed-point integers, with lower bits storing the fractional part.

    +

    FT_Byte

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef unsigned char  FT_Byte;
+
    + +

    A simple typedef for the unsigned char type.

    +
    + +

    FT_Bytes

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef const FT_Byte*  FT_Bytes;
+
    + +

    A typedef for constant memory areas.

    +
    + +

    FT_Char

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef signed char  FT_Char;
+
    + +

    A simple typedef for the signed char type.

    +
    + +

    FT_Int

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef signed int  FT_Int;
+
    + +

    A typedef for the int type.

    +
    + +

    FT_UInt

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef unsigned int  FT_UInt;
+
    + +

    A typedef for the unsigned int type.

    +
    + +

    FT_Int16

    +
      typedef signed short  FT_Int16;
+
    + +

    A typedef for a 16bit signed integer type.

    +
    + +

    FT_UInt16

    +
      typedef unsigned short  FT_UInt16;
+
    + +

    A typedef for a 16bit unsigned integer type.

    +
    + +

    FT_Int32

    +
      typedef signed XXX  FT_Int32;
+
    + +

    A typedef for a 32bit signed integer type. The size depends on the configuration.

    +
    + +

    FT_UInt32

    +
      typedef unsigned XXX  FT_UInt32;
+
    +
    + +

    FT_Int64

    +
      typedef signed XXX  FT_Int64;
+
    +
    + +

    FT_UInt64

    +
      typedef unsigned XXX  FT_UInt64;
+
    +
    + +

    FT_Short

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef signed short  FT_Short;
+
    + +

    A typedef for signed short.

    +
    + +

    FT_UShort

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef unsigned short  FT_UShort;
+
    + +

    A typedef for unsigned short.

    +
    + +

    FT_Long

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef signed long  FT_Long;
+
    + +

    A typedef for signed long.

    +
    + +

    FT_ULong

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef unsigned long  FT_ULong;
+
    + +

    A typedef for unsigned long.

    +
    + +

    FT_Bool

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef unsigned char  FT_Bool;
+
    + +

    A typedef of unsigned char, used for simple booleans. As usual, values 1 and 0 represent true and false, respectively.

    +
    + +

    FT_Offset

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef size_t  FT_Offset;
+
    + +

    This is equivalent to the ANSI C size_t type, i.e., the largest unsigned integer type used to express a file size or position, or a memory block size.

    +
    + +

    FT_PtrDist

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef ft_ptrdiff_t  FT_PtrDist;
+
    + +

    This is equivalent to the ANSI C ptrdiff_t type, i.e., the largest signed integer type used to express the distance between two pointers.

    +
    + +

    FT_String

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef char  FT_String;
+
    + +

    A simple typedef for the char type, usually used for strings.

    +
    + +

    FT_Tag

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef FT_UInt32  FT_Tag;
+
    + +

    A typedef for 32-bit tags (as used in the SFNT format).

    +
    + +

    FT_Error

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef int  FT_Error;
+
    + +

    The FreeType error code type. A value of 0 is always interpreted as a successful operation.

    +
    + +

    FT_Fixed

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef signed long  FT_Fixed;
+
    + +

    This type is used to store 16.16 fixed-point values, like scaling values or matrix coefficients.

    +
    + +

    FT_Pointer

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef void*  FT_Pointer;
+
    + +

    A simple typedef for a typeless pointer.

    +
    + +

    FT_Pos

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef signed long  FT_Pos;
+
    + +

    The type FT_Pos is used to store vectorial coordinates. Depending on the context, these can represent distances in integer font units, or 16.16, or 26.6 fixed-point pixel coordinates.

    +
    + +

    FT_Vector

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef struct  FT_Vector_
+  {
+    FT_Pos  x;
+    FT_Pos  y;
+
+  } FT_Vector;
+
    + +

    A simple structure used to store a 2D vector; coordinates are of the FT_Pos type.

    +

    fields

    + + + +
    x +

    The horizontal coordinate.

    +
    y +

    The vertical coordinate.

    +
    + +
    + +

    FT_BBox

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef struct  FT_BBox_
+  {
+    FT_Pos  xMin, yMin;
+    FT_Pos  xMax, yMax;
+
+  } FT_BBox;
+
    + +

    A structure used to hold an outline's bounding box, i.e., the coordinates of its extrema in the horizontal and vertical directions.

    +

    fields

    + + + + + +
    xMin +

    The horizontal minimum (left-most).

    +
    yMin +

    The vertical minimum (bottom-most).

    +
    xMax +

    The horizontal maximum (right-most).

    +
    yMax +

    The vertical maximum (top-most).

    +
    + +

    note

    + +

    The bounding box is specified with the coordinates of the lower left and the upper right corner. In PostScript, those values are often called (llx,lly) and (urx,ury), respectively.

    +

    If yMin is negative, this value gives the glyph's descender. Otherwise, the glyph doesn't descend below the baseline. Similarly, if ymax is positive, this value gives the glyph's ascender.

    +

    xMin gives the horizontal distance from the glyph's origin to the left edge of the glyph's bounding box. If xMin is negative, the glyph extends to the left of the origin.

    +
    + +

    FT_Matrix

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef struct  FT_Matrix_
+  {
+    FT_Fixed  xx, xy;
+    FT_Fixed  yx, yy;
+
+  } FT_Matrix;
+
    + +

    A simple structure used to store a 2x2 matrix. Coefficients are in 16.16 fixed-point format. The computation performed is: +

      x' = x*xx + y*xy
+  y' = x*yx + y*yy
+

    +

    fields

    + + + + + +
    xx +

    Matrix coefficient.

    +
    xy +

    Matrix coefficient.

    +
    yx +

    Matrix coefficient.

    +
    yy +

    Matrix coefficient.

    +
    + +
    + +

    FT_FWord

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef signed short  FT_FWord;   /* distance in FUnits */
+
    + +

    A signed 16-bit integer used to store a distance in original font units.

    +
    + +

    FT_UFWord

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef unsigned short  FT_UFWord;  /* unsigned distance */
+
    + +

    An unsigned 16-bit integer used to store a distance in original font units.

    +
    + +

    FT_F2Dot14

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef signed short  FT_F2Dot14;
+
    + +

    A signed 2.14 fixed-point type used for unit vectors.

    +
    + +

    FT_UnitVector

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef struct  FT_UnitVector_
+  {
+    FT_F2Dot14  x;
+    FT_F2Dot14  y;
+
+  } FT_UnitVector;
+
    + +

    A simple structure used to store a 2D vector unit vector. Uses FT_F2Dot14 types.

    +

    fields

    + + + +
    x +

    Horizontal coordinate.

    +
    y +

    Vertical coordinate.

    +
    + +
    + +

    FT_F26Dot6

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef signed long  FT_F26Dot6;
+
    + +

    A signed 26.6 fixed-point type used for vectorial pixel coordinates.

    +
    + +

    FT_Data

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef struct  FT_Data_
+  {
+    const FT_Byte*  pointer;
+    FT_UInt         length;
+
+  } FT_Data;
+
    + +

    Read-only binary data represented as a pointer and a length.

    +

    fields

    + + + +
    pointer +

    The data.

    +
    length +

    The length of the data in bytes.

    +
    + +
    + +

    FT_MAKE_TAG

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
    #define FT_MAKE_TAG( _x1, _x2, _x3, _x4 )                  \
+          ( ( FT_STATIC_BYTE_CAST( FT_Tag, _x1 ) << 24 ) | \
+            ( FT_STATIC_BYTE_CAST( FT_Tag, _x2 ) << 16 ) | \
+            ( FT_STATIC_BYTE_CAST( FT_Tag, _x3 ) <<  8 ) | \
+              FT_STATIC_BYTE_CAST( FT_Tag, _x4 )         )
+
    + +

    This macro converts four-letter tags that are used to label TrueType tables into an FT_Tag type, to be used within FreeType.

    +

    note

    + +

    The produced values must be 32-bit integers. Don't redefine this macro.

    +
    + +

    FT_Generic

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef struct  FT_Generic_
+  {
+    void*                 data;
+    FT_Generic_Finalizer  finalizer;
+
+  } FT_Generic;
+
    + +

    Client applications often need to associate their own data to a variety of FreeType core objects. For example, a text layout API might want to associate a glyph cache to a given size object.

    +

    Some FreeType object contains a generic field, of type FT_Generic, which usage is left to client applications and font servers.

    +

    It can be used to store a pointer to client-specific data, as well as the address of a ‘finalizer’ function, which will be called by FreeType when the object is destroyed (for example, the previous client example would put the address of the glyph cache destructor in the finalizer field).

    +

    fields

    + + + +
    data +

    A typeless pointer to any client-specified data. This field is completely ignored by the FreeType library.

    +
    finalizer +

    A pointer to a ‘generic finalizer’ function, which will be called when the object is destroyed. If this field is set to NULL, no code will be called.

    +
    + +
    + +

    FT_Generic_Finalizer

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef void  (*FT_Generic_Finalizer)( void*  object );
+
    + +

    Describe a function used to destroy the ‘client’ data of any FreeType object. See the description of the FT_Generic type for details of usage.

    +

    input

    + +

    The address of the FreeType object that is under finalization. Its client data is accessed through its generic field.

    +
    + +

    FT_Bitmap

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef struct  FT_Bitmap_
+  {
+    unsigned int    rows;
+    unsigned int    width;
+    int             pitch;
+    unsigned char*  buffer;
+    unsigned short  num_grays;
+    unsigned char   pixel_mode;
+    unsigned char   palette_mode;
+    void*           palette;
+
+  } FT_Bitmap;
+
    + +

    A structure used to describe a bitmap or pixmap to the raster. Note that we now manage pixmaps of various depths through the pixel_mode field.

    +

    fields

    + + + + + + + + + +
    rows +

    The number of bitmap rows.

    +
    width +

    The number of pixels in bitmap row.

    +
    pitch +

    The pitch's absolute value is the number of bytes taken by one bitmap row, including padding. However, the pitch is positive when the bitmap has a ‘down’ flow, and negative when it has an ‘up’ flow. In all cases, the pitch is an offset to add to a bitmap pointer in order to go down one row.

    +

    Note that ‘padding’ means the alignment of a bitmap to a byte border, and FreeType functions normally align to the smallest possible integer value.

    +

    For the B/W rasterizer, pitch is always an even number.

    +

    To change the pitch of a bitmap (say, to make it a multiple of 4), use FT_Bitmap_Convert. Alternatively, you might use callback functions to directly render to the application's surface; see the file example2.cpp in the tutorial for a demonstration.

    +
    buffer +

    A typeless pointer to the bitmap buffer. This value should be aligned on 32-bit boundaries in most cases.

    +
    num_grays +

    This field is only used with FT_PIXEL_MODE_GRAY; it gives the number of gray levels used in the bitmap.

    +
    pixel_mode +

    The pixel mode, i.e., how pixel bits are stored. See FT_Pixel_Mode for possible values.

    +
    palette_mode +

    This field is intended for paletted pixel modes; it indicates how the palette is stored. Not used currently.

    +
    palette +

    A typeless pointer to the bitmap palette; this field is intended for paletted pixel modes. Not used currently.

    +
    + +

    note

    + +

    width and rows refer to the physical size of the bitmap, not the logical one. For example, if FT_Pixel_Mode is set to FT_PIXEL_MODE_LCD, the logical width is a just a third of the physical one.

    +
    + +

    FT_Pixel_Mode

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef enum  FT_Pixel_Mode_
+  {
+    FT_PIXEL_MODE_NONE = 0,
+    FT_PIXEL_MODE_MONO,
+    FT_PIXEL_MODE_GRAY,
+    FT_PIXEL_MODE_GRAY2,
+    FT_PIXEL_MODE_GRAY4,
+    FT_PIXEL_MODE_LCD,
+    FT_PIXEL_MODE_LCD_V,
+    FT_PIXEL_MODE_BGRA,
+
+    FT_PIXEL_MODE_MAX      /* do not remove */
+
+  } FT_Pixel_Mode;
+
+
+  /* these constants are deprecated; use the corresponding `FT_Pixel_Mode` */
+  /* values instead.                                                       */
+#define ft_pixel_mode_none   FT_PIXEL_MODE_NONE
+#define ft_pixel_mode_mono   FT_PIXEL_MODE_MONO
+#define ft_pixel_mode_grays  FT_PIXEL_MODE_GRAY
+#define ft_pixel_mode_pal2   FT_PIXEL_MODE_GRAY2
+#define ft_pixel_mode_pal4   FT_PIXEL_MODE_GRAY4
+
    + +

    An enumeration type used to describe the format of pixels in a given bitmap. Note that additional formats may be added in the future.

    +

    values

    + + + + + + + + + +
    FT_PIXEL_MODE_NONE +

    Value 0 is reserved.

    +
    FT_PIXEL_MODE_MONO +

    A monochrome bitmap, using 1 bit per pixel. Note that pixels are stored in most-significant order (MSB), which means that the left-most pixel in a byte has value 128.

    +
    FT_PIXEL_MODE_GRAY +

    An 8-bit bitmap, generally used to represent anti-aliased glyph images. Each pixel is stored in one byte. Note that the number of ‘gray’ levels is stored in the num_grays field of the FT_Bitmap structure (it generally is 256).

    +
    FT_PIXEL_MODE_GRAY2 +

    A 2-bit per pixel bitmap, used to represent embedded anti-aliased bitmaps in font files according to the OpenType specification. We haven't found a single font using this format, however.

    +
    FT_PIXEL_MODE_GRAY4 +

    A 4-bit per pixel bitmap, representing embedded anti-aliased bitmaps in font files according to the OpenType specification. We haven't found a single font using this format, however.

    +
    FT_PIXEL_MODE_LCD +

    An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on LCD displays; the bitmap is three times wider than the original glyph image. See also FT_RENDER_MODE_LCD.

    +
    FT_PIXEL_MODE_LCD_V +

    An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on rotated LCD displays; the bitmap is three times taller than the original glyph image. See also FT_RENDER_MODE_LCD_V.

    +
    FT_PIXEL_MODE_BGRA +

    [Since 2.5] An image with four 8-bit channels per pixel, representing a color image (such as emoticons) with alpha channel. For each pixel, the format is BGRA, which means, the blue channel comes first in memory. The color channels are pre-multiplied and in the sRGB colorspace. For example, full red at half-translucent opacity will be represented as ‘00,00,80,80’, not ‘00,00,FF,80’. See also FT_LOAD_COLOR.

    +
    + +
    + +

    FT_Glyph_Format

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef enum  FT_Glyph_Format_
+  {
+    FT_IMAGE_TAG( FT_GLYPH_FORMAT_NONE, 0, 0, 0, 0 ),
+
+    FT_IMAGE_TAG( FT_GLYPH_FORMAT_COMPOSITE, 'c', 'o', 'm', 'p' ),
+    FT_IMAGE_TAG( FT_GLYPH_FORMAT_BITMAP,    'b', 'i', 't', 's' ),
+    FT_IMAGE_TAG( FT_GLYPH_FORMAT_OUTLINE,   'o', 'u', 't', 'l' ),
+    FT_IMAGE_TAG( FT_GLYPH_FORMAT_PLOTTER,   'p', 'l', 'o', 't' ),
+    FT_IMAGE_TAG( FT_GLYPH_FORMAT_SVG,       'S', 'V', 'G', ' ' )
+
+  } FT_Glyph_Format;
+
+
+  /* these constants are deprecated; use the corresponding */
+  /* `FT_Glyph_Format` values instead.                     */
+#define ft_glyph_format_none       FT_GLYPH_FORMAT_NONE
+#define ft_glyph_format_composite  FT_GLYPH_FORMAT_COMPOSITE
+#define ft_glyph_format_bitmap     FT_GLYPH_FORMAT_BITMAP
+#define ft_glyph_format_outline    FT_GLYPH_FORMAT_OUTLINE
+#define ft_glyph_format_plotter    FT_GLYPH_FORMAT_PLOTTER
+
    + +

    An enumeration type used to describe the format of a given glyph image. Note that this version of FreeType only supports two image formats, even though future font drivers will be able to register their own format.

    +

    values

    + + + + + + + +
    FT_GLYPH_FORMAT_NONE +

    The value 0 is reserved.

    +
    FT_GLYPH_FORMAT_COMPOSITE +

    The glyph image is a composite of several other images. This format is only used with FT_LOAD_NO_RECURSE, and is used to report compound glyphs (like accented characters).

    +
    FT_GLYPH_FORMAT_BITMAP +

    The glyph image is a bitmap, and can be described as an FT_Bitmap. You generally need to access the bitmap field of the FT_GlyphSlotRec structure to read it.

    +
    FT_GLYPH_FORMAT_OUTLINE +

    The glyph image is a vectorial outline made of line segments and Bezier arcs; it can be described as an FT_Outline; you generally want to access the outline field of the FT_GlyphSlotRec structure to read it.

    +
    FT_GLYPH_FORMAT_PLOTTER +

    The glyph image is a vectorial path with no inside and outside contours. Some Type 1 fonts, like those in the Hershey family, contain glyphs in this format. These are described as FT_Outline, but FreeType isn't currently capable of rendering them correctly.

    +
    FT_GLYPH_FORMAT_SVG +

    [Since 2.12] The glyph is represented by an SVG document in the ‘SVG ’ table.

    +
    + +
    + +

    FT_IMAGE_TAG

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
    #ifndef FT_IMAGE_TAG
+
+#define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 )                         \
+          value = ( ( FT_STATIC_BYTE_CAST( unsigned long, _x1 ) << 24 ) | \
+                    ( FT_STATIC_BYTE_CAST( unsigned long, _x2 ) << 16 ) | \
+                    ( FT_STATIC_BYTE_CAST( unsigned long, _x3 ) << 8  ) | \
+                      FT_STATIC_BYTE_CAST( unsigned long, _x4 )         )
+
+#endif /* FT_IMAGE_TAG */
+
    + +

    This macro converts four-letter tags to an unsigned long type.

    +

    note

    + +

    Since many 16-bit compilers don't like 32-bit enumerations, you should redefine this macro in case of problems to something like this: +

      #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 )  value
+

    +

    to get a simple enumeration without assigning special numbers.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-bdf_fonts.html b/modules/freetype2/docs/reference/ft2-bdf_fonts.html new file mode 100644 index 0000000000..d1dc112b80 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-bdf_fonts.html @@ -0,0 +1,1570 @@ + + + + + + + + + + + + + + + + + + + + + BDF and PCF Files - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
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    + + + +
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    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Format-Specific API » BDF and PCF Files

    +
    +

    BDF and PCF Files

    +

    Synopsis

    +

    This section contains the declaration of functions specific to BDF and PCF fonts.

    +

    BDF_PropertyType

    +

    Defined in FT_BDF_H (freetype/ftbdf.h).

    +
      typedef enum  BDF_PropertyType_
+  {
+    BDF_PROPERTY_TYPE_NONE     = 0,
+    BDF_PROPERTY_TYPE_ATOM     = 1,
+    BDF_PROPERTY_TYPE_INTEGER  = 2,
+    BDF_PROPERTY_TYPE_CARDINAL = 3
+
+  } BDF_PropertyType;
+
    + +

    A list of BDF property types.

    +

    values

    + + + + + +
    BDF_PROPERTY_TYPE_NONE +

    Value 0 is used to indicate a missing property.

    +
    BDF_PROPERTY_TYPE_ATOM +

    Property is a string atom.

    +
    BDF_PROPERTY_TYPE_INTEGER +

    Property is a 32-bit signed integer.

    +
    BDF_PROPERTY_TYPE_CARDINAL +

    Property is a 32-bit unsigned integer.

    +
    + +
    + +

    BDF_Property

    +

    Defined in FT_BDF_H (freetype/ftbdf.h).

    +
      typedef struct BDF_PropertyRec_*  BDF_Property;
+
    + +

    A handle to a BDF_PropertyRec structure to model a given BDF/PCF property.

    +
    + +

    BDF_PropertyRec

    +

    Defined in FT_BDF_H (freetype/ftbdf.h).

    +
      typedef struct  BDF_PropertyRec_
+  {
+    BDF_PropertyType  type;
+    union {
+      const char*     atom;
+      FT_Int32        integer;
+      FT_UInt32       cardinal;
+
+    } u;
+
+  } BDF_PropertyRec;
+
    + +

    This structure models a given BDF/PCF property.

    +

    fields

    + + + + + +
    type +

    The property type.

    +
    u.atom +

    The atom string, if type is BDF_PROPERTY_TYPE_ATOM. May be NULL, indicating an empty string.

    +
    u.integer +

    A signed integer, if type is BDF_PROPERTY_TYPE_INTEGER.

    +
    u.cardinal +

    An unsigned integer, if type is BDF_PROPERTY_TYPE_CARDINAL.

    +
    + +
    + +

    FT_Get_BDF_Charset_ID

    +

    Defined in FT_BDF_H (freetype/ftbdf.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_BDF_Charset_ID( FT_Face       face,
+                         const char*  *acharset_encoding,
+                         const char*  *acharset_registry );
+
    + +

    Retrieve a BDF font character set identity, according to the BDF specification.

    +

    input

    + + +
    face +

    A handle to the input face.

    +
    + +

    output

    + + + +
    acharset_encoding +

    Charset encoding, as a C string, owned by the face.

    +
    acharset_registry +

    Charset registry, as a C string, owned by the face.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function only works with BDF faces, returning an error otherwise.

    +
    + +

    FT_Get_BDF_Property

    +

    Defined in FT_BDF_H (freetype/ftbdf.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_BDF_Property( FT_Face           face,
+                       const char*       prop_name,
+                       BDF_PropertyRec  *aproperty );
+
    + +

    Retrieve a BDF property from a BDF or PCF font file.

    +

    input

    + + + +
    face +

    A handle to the input face.

    +
    name +

    The property name.

    +
    + +

    output

    + + +
    aproperty +

    The property.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function works with BDF and PCF fonts. It returns an error otherwise. It also returns an error if the property is not in the font.

    +

    A ‘property’ is a either key-value pair within the STARTPROPERTIES … ENDPROPERTIES block of a BDF font or a key-value pair from the info->props array within a FontRec structure of a PCF font.

    +

    Integer properties are always stored as ‘signed’ within PCF fonts; consequently, BDF_PROPERTY_TYPE_CARDINAL is a possible return value for BDF fonts only.

    +

    In case of error, aproperty->type is always set to BDF_PROPERTY_TYPE_NONE.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-bitmap_handling.html b/modules/freetype2/docs/reference/ft2-bitmap_handling.html new file mode 100644 index 0000000000..0e2952b9ae --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-bitmap_handling.html @@ -0,0 +1,1695 @@ + + + + + + + + + + + + + + + + + + + + + Bitmap Handling - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + + +

    FreeType » Docs » Support API » Bitmap Handling

    +
    +

    Bitmap Handling

    +

    Synopsis

    +

    This section contains functions for handling FT_Bitmap objects, automatically adjusting the target's bitmap buffer size as needed.

    +

    Note that none of the functions changes the bitmap's ‘flow’ (as indicated by the sign of the pitch field in FT_Bitmap).

    +

    To set the flow, assign an appropriate positive or negative value to the pitch field of the target FT_Bitmap object after calling FT_Bitmap_Init but before calling any of the other functions described here.

    +

    FT_Bitmap_Init

    +

    Defined in FT_BITMAP_H (freetype/ftbitmap.h).

    +
      FT_EXPORT( void )
+  FT_Bitmap_Init( FT_Bitmap  *abitmap );
+
+
+  /* deprecated */
+  FT_EXPORT( void )
+  FT_Bitmap_New( FT_Bitmap  *abitmap );
+
    + +

    Initialize a pointer to an FT_Bitmap structure.

    +

    inout

    + + +
    abitmap +

    A pointer to the bitmap structure.

    +
    + +

    note

    + +

    A deprecated name for the same function is FT_Bitmap_New.

    +
    + +

    FT_Bitmap_Copy

    +

    Defined in FT_BITMAP_H (freetype/ftbitmap.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Bitmap_Copy( FT_Library        library,
+                  const FT_Bitmap  *source,
+                  FT_Bitmap        *target );
+
    + +

    Copy a bitmap into another one.

    +

    input

    + + + +
    library +

    A handle to a library object.

    +
    source +

    A handle to the source bitmap.

    +
    + +

    output

    + + +
    target +

    A handle to the target bitmap.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    source->buffer and target->buffer must neither be equal nor overlap.

    +
    + +

    FT_Bitmap_Embolden

    +

    Defined in FT_BITMAP_H (freetype/ftbitmap.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Bitmap_Embolden( FT_Library  library,
+                      FT_Bitmap*  bitmap,
+                      FT_Pos      xStrength,
+                      FT_Pos      yStrength );
+
    + +

    Embolden a bitmap. The new bitmap will be about xStrength pixels wider and yStrength pixels higher. The left and bottom borders are kept unchanged.

    +

    input

    + + + + +
    library +

    A handle to a library object.

    +
    xStrength +

    How strong the glyph is emboldened horizontally. Expressed in 26.6 pixel format.

    +
    yStrength +

    How strong the glyph is emboldened vertically. Expressed in 26.6 pixel format.

    +
    + +

    inout

    + + +
    bitmap +

    A handle to the target bitmap.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The current implementation restricts xStrength to be less than or equal to 8 if bitmap is of pixel_mode FT_PIXEL_MODE_MONO.

    +

    If you want to embolden the bitmap owned by a FT_GlyphSlotRec, you should call FT_GlyphSlot_Own_Bitmap on the slot first.

    +

    Bitmaps in FT_PIXEL_MODE_GRAY2 and FT_PIXEL_MODE_GRAY@ format are converted to FT_PIXEL_MODE_GRAY format (i.e., 8bpp).

    +
    + +

    FT_Bitmap_Convert

    +

    Defined in FT_BITMAP_H (freetype/ftbitmap.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Bitmap_Convert( FT_Library        library,
+                     const FT_Bitmap  *source,
+                     FT_Bitmap        *target,
+                     FT_Int            alignment );
+
    + +

    Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp to a bitmap object with depth 8bpp, making the number of used bytes per line (a.k.a. the ‘pitch’) a multiple of alignment.

    +

    input

    + + + + +
    library +

    A handle to a library object.

    +
    source +

    The source bitmap.

    +
    alignment +

    The pitch of the bitmap is a multiple of this argument. Common values are 1, 2, or 4.

    +
    + +

    output

    + + +
    target +

    The target bitmap.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    It is possible to call FT_Bitmap_Convert multiple times without calling FT_Bitmap_Done (the memory is simply reallocated).

    +

    Use FT_Bitmap_Done to finally remove the bitmap object.

    +

    The library argument is taken to have access to FreeType's memory handling functions.

    +

    source->buffer and target->buffer must neither be equal nor overlap.

    +
    + +

    FT_Bitmap_Blend

    +

    Defined in FT_BITMAP_H (freetype/ftbitmap.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Bitmap_Blend( FT_Library         library,
+                   const FT_Bitmap*   source,
+                   const FT_Vector    source_offset,
+                   FT_Bitmap*         target,
+                   FT_Vector         *atarget_offset,
+                   FT_Color           color );
+
    + +

    Blend a bitmap onto another bitmap, using a given color.

    +

    input

    + + + + + +
    library +

    A handle to a library object.

    +
    source +

    The source bitmap, which can have any FT_Pixel_Mode format.

    +
    source_offset +

    The offset vector to the upper left corner of the source bitmap in 26.6 pixel format. It should represent an integer offset; the function will set the lowest six bits to zero to enforce that.

    +
    color +

    The color used to draw source onto target.

    +
    + +

    inout

    + + + +
    target +

    A handle to an FT_Bitmap object. It should be either initialized as empty with a call to FT_Bitmap_Init, or it should be of type FT_PIXEL_MODE_BGRA.

    +
    atarget_offset +

    The offset vector to the upper left corner of the target bitmap in 26.6 pixel format. It should represent an integer offset; the function will set the lowest six bits to zero to enforce that.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function doesn't perform clipping.

    +

    The bitmap in target gets allocated or reallocated as needed; the vector atarget_offset is updated accordingly.

    +

    In case of allocation or reallocation, the bitmap's pitch is set to 4 * width. Both source and target must have the same bitmap flow (as indicated by the sign of the pitch field).

    +

    source->buffer and target->buffer must neither be equal nor overlap.

    +

    since

    + +

    2.10

    +
    + +

    FT_GlyphSlot_Own_Bitmap

    +

    Defined in FT_BITMAP_H (freetype/ftbitmap.h).

    +
      FT_EXPORT( FT_Error )
+  FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot  slot );
+
    + +

    Make sure that a glyph slot owns slot->bitmap.

    +

    input

    + + +
    slot +

    The glyph slot.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function is to be used in combination with FT_Bitmap_Embolden.

    +
    + +

    FT_Bitmap_Done

    +

    Defined in FT_BITMAP_H (freetype/ftbitmap.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Bitmap_Done( FT_Library  library,
+                  FT_Bitmap  *bitmap );
+
    + +

    Destroy a bitmap object initialized with FT_Bitmap_Init.

    +

    input

    + + + +
    library +

    A handle to a library object.

    +
    bitmap +

    The bitmap object to be freed.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The library argument is taken to have access to FreeType's memory handling functions.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-bzip2.html b/modules/freetype2/docs/reference/ft2-bzip2.html new file mode 100644 index 0000000000..c42836bd79 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-bzip2.html @@ -0,0 +1,1400 @@ + + + + + + + + + + + + + + + + + + + + + BZIP2 Streams - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Support API » BZIP2 Streams

    +
    +

    BZIP2 Streams

    +

    Synopsis

    +

    In certain builds of the library, bzip2 compression recognition is automatically handled when calling FT_New_Face or FT_Open_Face. This means that if no font driver is capable of handling the raw compressed file, the library will try to open a bzip2 compressed stream from it and re-open the face with it.

    +

    The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance.

    +

    This section contains the declaration of Bzip2-specific functions.

    +

    FT_Stream_OpenBzip2

    +

    Defined in FT_BZIP2_H (freetype/ftbzip2.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stream_OpenBzip2( FT_Stream  stream,
+                       FT_Stream  source );
+
    + +

    Open a new stream to parse bzip2-compressed font files. This is mainly used to support the compressed *.pcf.bz2 fonts that come with XFree86.

    +

    input

    + + + +
    stream +

    The target embedding stream.

    +
    source +

    The source stream.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The source stream must be opened before calling this function.

    +

    Calling the internal function FT_Stream_Close on the new stream will not call FT_Stream_Close on the source stream. None of the stream objects will be released to the heap.

    +

    This function may return FT_Err_Unimplemented_Feature if your build of FreeType was not compiled with bzip2 support.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-cache_subsystem.html b/modules/freetype2/docs/reference/ft2-cache_subsystem.html new file mode 100644 index 0000000000..d2e96d9296 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-cache_subsystem.html @@ -0,0 +1,2527 @@ + + + + + + + + + + + + + + + + + + + + + Cache Sub-System - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Cache Sub-System » Cache Sub-System

    +
    +

    Cache Sub-System

    +

    Synopsis

    +

    This section describes the FreeType 2 cache sub-system, which is used to limit the number of concurrently opened FT_Face and FT_Size objects, as well as caching information like character maps and glyph images while limiting their maximum memory usage.

    +

    Note that all types and functions begin with the FTC_ prefix rather than the usual FT_ prefix in the rest of FreeType.

    +

    The cache is highly portable and, thus, doesn't know anything about the fonts installed on your system, or how to access them. Therefore, it requires the following.

    +
      +
    • +

      FTC_FaceID, an arbitrary non-zero value that uniquely identifies available or installed font faces, has to be provided to the cache by the client. Note that the cache only stores and compares these values and doesn't try to interpret them in any way, but they have to be persistent on the client side.

      +
      • +
    • +

      FTC_Face_Requester, a method to convert an FTC_FaceID into a new FT_Face object when necessary, has to be provided to the cache by the client. The FT_Face object is completely managed by the cache, including its termination through FT_Done_Face. To monitor termination of face objects, the finalizer callback in the generic field of the FT_Face object can be used, which might also be used to store the FTC_FaceID of the face.

      +
      • +
    +

    Clients are free to map face IDs to anything useful. The most simple usage is, for example, to associate them to a {pathname,face_index} pair that is then used by FTC_Face_Requester to call FT_New_Face. However, more complex schemes are also possible.

    +

    Note that for the cache to work correctly, the face ID values must be persistent, which means that the contents they point to should not change at runtime, or that their value should not become invalid. If this is unavoidable (e.g., when a font is uninstalled at runtime), you should call FTC_Manager_RemoveFaceID as soon as possible to let the cache get rid of any references to the old FTC_FaceID it may keep internally. Failure to do so will lead to incorrect behaviour or even crashes in FTC_Face_Requester.

    +

    To use the cache, start with calling FTC_Manager_New to create a new FTC_Manager object, which models a single cache instance. You can then look up FT_Face and FT_Size objects with FTC_Manager_LookupFace and FTC_Manager_LookupSize, respectively, and use them in any FreeType work stream. You can also cache other FreeType objects as follows.

    + +

    FTC_Manager

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct FTC_ManagerRec_*  FTC_Manager;
+
    + +

    This object corresponds to one instance of the cache-subsystem. It is used to cache one or more FT_Face objects, along with corresponding FT_Size objects.

    +

    The manager intentionally limits the total number of opened FT_Face and FT_Size objects to control memory usage. See the max_faces and max_sizes parameters of FTC_Manager_New.

    +

    The manager is also used to cache ‘nodes’ of various types while limiting their total memory usage.

    +

    All limitations are enforced by keeping lists of managed objects in most-recently-used order, and flushing old nodes to make room for new ones.

    +
    + +

    FTC_FaceID

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef FT_Pointer  FTC_FaceID;
+
    + +

    An opaque pointer type that is used to identity face objects. The contents of such objects is application-dependent.

    +

    These pointers are typically used to point to a user-defined structure containing a font file path, and face index.

    +

    note

    + +

    Never use NULL as a valid FTC_FaceID.

    +

    Face IDs are passed by the client to the cache manager that calls, when needed, the FTC_Face_Requester to translate them into new FT_Face objects.

    +

    If the content of a given face ID changes at runtime, or if the value becomes invalid (e.g., when uninstalling a font), you should immediately call FTC_Manager_RemoveFaceID before any other cache function.

    +

    Failure to do so will result in incorrect behaviour or even memory leaks and crashes.

    +
    + +

    FTC_Face_Requester

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef FT_Error
+  (*FTC_Face_Requester)( FTC_FaceID  face_id,
+                         FT_Library  library,
+                         FT_Pointer  req_data,
+                         FT_Face*    aface );
+
    + +

    A callback function provided by client applications. It is used by the cache manager to translate a given FTC_FaceID into a new valid FT_Face object, on demand.

    +

    input

    + + + + +
    face_id +

    The face ID to resolve.

    +
    library +

    A handle to a FreeType library object.

    +
    req_data +

    Application-provided request data (see note below).

    +
    + +

    output

    + + +
    aface +

    A new FT_Face handle.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The third parameter req_data is the same as the one passed by the client when FTC_Manager_New is called.

    +

    The face requester should not perform funny things on the returned face object, like creating a new FT_Size for it, or setting a transformation through FT_Set_Transform!

    +
    + +

    FTC_Manager_New

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_Manager_New( FT_Library          library,
+                   FT_UInt             max_faces,
+                   FT_UInt             max_sizes,
+                   FT_ULong            max_bytes,
+                   FTC_Face_Requester  requester,
+                   FT_Pointer          req_data,
+                   FTC_Manager        *amanager );
+
    + +

    Create a new cache manager.

    +

    input

    + + + + + + + +
    library +

    The parent FreeType library handle to use.

    +
    max_faces +

    Maximum number of opened FT_Face objects managed by this cache instance. Use 0 for defaults.

    +
    max_sizes +

    Maximum number of opened FT_Size objects managed by this cache instance. Use 0 for defaults.

    +
    max_bytes +

    Maximum number of bytes to use for cached data nodes. Use 0 for defaults. Note that this value does not account for managed FT_Face and FT_Size objects.

    +
    requester +

    An application-provided callback used to translate face IDs into real FT_Face objects.

    +
    req_data +

    A generic pointer that is passed to the requester each time it is called (see FTC_Face_Requester).

    +
    + +

    output

    + + +
    amanager +

    A handle to a new manager object. 0 in case of failure.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FTC_Manager_Reset

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( void )
+  FTC_Manager_Reset( FTC_Manager  manager );
+
    + +

    Empty a given cache manager. This simply gets rid of all the currently cached FT_Face and FT_Size objects within the manager.

    +

    inout

    + + +
    manager +

    A handle to the manager.

    +
    + +
    + +

    FTC_Manager_Done

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( void )
+  FTC_Manager_Done( FTC_Manager  manager );
+
    + +

    Destroy a given manager after emptying it.

    +

    input

    + + +
    manager +

    A handle to the target cache manager object.

    +
    + +
    + +

    FTC_Manager_LookupFace

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_Manager_LookupFace( FTC_Manager  manager,
+                          FTC_FaceID   face_id,
+                          FT_Face     *aface );
+
    + +

    Retrieve the FT_Face object that corresponds to a given face ID through a cache manager.

    +

    input

    + + + +
    manager +

    A handle to the cache manager.

    +
    face_id +

    The ID of the face object.

    +
    + +

    output

    + + +
    aface +

    A handle to the face object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The returned FT_Face object is always owned by the manager. You should never try to discard it yourself.

    +

    The FT_Face object doesn't necessarily have a current size object (i.e., face->size can be 0). If you need a specific ‘font size’, use FTC_Manager_LookupSize instead.

    +

    Never change the face's transformation matrix (i.e., never call the FT_Set_Transform function) on a returned face! If you need to transform glyphs, do it yourself after glyph loading.

    +

    When you perform a lookup, out-of-memory errors are detected within the lookup and force incremental flushes of the cache until enough memory is released for the lookup to succeed.

    +

    If a lookup fails with FT_Err_Out_Of_Memory the cache has already been completely flushed, and still no memory was available for the operation.

    +
    + +

    FTC_Manager_LookupSize

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_Manager_LookupSize( FTC_Manager  manager,
+                          FTC_Scaler   scaler,
+                          FT_Size     *asize );
+
    + +

    Retrieve the FT_Size object that corresponds to a given FTC_ScalerRec pointer through a cache manager.

    +

    input

    + + + +
    manager +

    A handle to the cache manager.

    +
    scaler +

    A scaler handle.

    +
    + +

    output

    + + +
    asize +

    A handle to the size object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The returned FT_Size object is always owned by the manager. You should never try to discard it by yourself.

    +

    You can access the parent FT_Face object simply as size->face if you need it. Note that this object is also owned by the manager.

    +

    note

    + +

    When you perform a lookup, out-of-memory errors are detected within the lookup and force incremental flushes of the cache until enough memory is released for the lookup to succeed.

    +

    If a lookup fails with FT_Err_Out_Of_Memory the cache has already been completely flushed, and still no memory is available for the operation.

    +
    + +

    FTC_Manager_RemoveFaceID

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( void )
+  FTC_Manager_RemoveFaceID( FTC_Manager  manager,
+                            FTC_FaceID   face_id );
+
    + +

    A special function used to indicate to the cache manager that a given FTC_FaceID is no longer valid, either because its content changed, or because it was deallocated or uninstalled.

    +

    input

    + + + +
    manager +

    The cache manager handle.

    +
    face_id +

    The FTC_FaceID to be removed.

    +
    + +

    note

    + +

    This function flushes all nodes from the cache corresponding to this face_id, with the exception of nodes with a non-null reference count.

    +

    Such nodes are however modified internally so as to never appear in later lookups with the same face_id value, and to be immediately destroyed when released by all their users.

    +
    + +

    FTC_Node

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct FTC_NodeRec_*  FTC_Node;
+
    + +

    An opaque handle to a cache node object. Each cache node is reference-counted. A node with a count of 0 might be flushed out of a full cache whenever a lookup request is performed.

    +

    If you look up nodes, you have the ability to ‘acquire’ them, i.e., to increment their reference count. This will prevent the node from being flushed out of the cache until you explicitly ‘release’ it (see FTC_Node_Unref).

    +

    See also FTC_SBitCache_Lookup and FTC_ImageCache_Lookup.

    +
    + +

    FTC_Node_Unref

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( void )
+  FTC_Node_Unref( FTC_Node     node,
+                  FTC_Manager  manager );
+
    + +

    Decrement a cache node's internal reference count. When the count reaches 0, it is not destroyed but becomes eligible for subsequent cache flushes.

    +

    input

    + + + +
    node +

    The cache node handle.

    +
    manager +

    The cache manager handle.

    +
    + +
    + +

    FTC_ImageCache

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct FTC_ImageCacheRec_*  FTC_ImageCache;
+
    + +

    A handle to a glyph image cache object. They are designed to hold many distinct glyph images while not exceeding a certain memory threshold.

    +
    + +

    FTC_ImageCache_New

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_ImageCache_New( FTC_Manager      manager,
+                      FTC_ImageCache  *acache );
+
    + +

    Create a new glyph image cache.

    +

    input

    + + +
    manager +

    The parent manager for the image cache.

    +
    + +

    output

    + + +
    acache +

    A handle to the new glyph image cache object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FTC_ImageCache_Lookup

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_ImageCache_Lookup( FTC_ImageCache  cache,
+                         FTC_ImageType   type,
+                         FT_UInt         gindex,
+                         FT_Glyph       *aglyph,
+                         FTC_Node       *anode );
+
    + +

    Retrieve a given glyph image from a glyph image cache.

    +

    input

    + + + + +
    cache +

    A handle to the source glyph image cache.

    +
    type +

    A pointer to a glyph image type descriptor.

    +
    gindex +

    The glyph index to retrieve.

    +
    + +

    output

    + + + +
    aglyph +

    The corresponding FT_Glyph object. 0 in case of failure.

    +
    anode +

    Used to return the address of the corresponding cache node after incrementing its reference count (see note below).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The returned glyph is owned and managed by the glyph image cache. Never try to transform or discard it manually! You can however create a copy with FT_Glyph_Copy and modify the new one.

    +

    If anode is not NULL, it receives the address of the cache node containing the glyph image, after increasing its reference count. This ensures that the node (as well as the FT_Glyph) will always be kept in the cache until you call FTC_Node_Unref to ‘release’ it.

    +

    If anode is NULL, the cache node is left unchanged, which means that the FT_Glyph could be flushed out of the cache on the next call to one of the caching sub-system APIs. Don't assume that it is persistent!

    +
    + +

    FTC_SBit

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct FTC_SBitRec_*  FTC_SBit;
+
    + +

    A handle to a small bitmap descriptor. See the FTC_SBitRec structure for details.

    +
    + +

    FTC_SBitCache

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct FTC_SBitCacheRec_*  FTC_SBitCache;
+
    + +

    A handle to a small bitmap cache. These are special cache objects used to store small glyph bitmaps (and anti-aliased pixmaps) in a much more efficient way than the traditional glyph image cache implemented by FTC_ImageCache.

    +
    + +

    FTC_SBitCache_New

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_SBitCache_New( FTC_Manager     manager,
+                     FTC_SBitCache  *acache );
+
    + +

    Create a new cache to store small glyph bitmaps.

    +

    input

    + + +
    manager +

    A handle to the source cache manager.

    +
    + +

    output

    + + +
    acache +

    A handle to the new sbit cache. NULL in case of error.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FTC_SBitCache_Lookup

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_SBitCache_Lookup( FTC_SBitCache    cache,
+                        FTC_ImageType    type,
+                        FT_UInt          gindex,
+                        FTC_SBit        *sbit,
+                        FTC_Node        *anode );
+
    + +

    Look up a given small glyph bitmap in a given sbit cache and ‘lock’ it to prevent its flushing from the cache until needed.

    +

    input

    + + + + +
    cache +

    A handle to the source sbit cache.

    +
    type +

    A pointer to the glyph image type descriptor.

    +
    gindex +

    The glyph index.

    +
    + +

    output

    + + + +
    sbit +

    A handle to a small bitmap descriptor.

    +
    anode +

    Used to return the address of the corresponding cache node after incrementing its reference count (see note below).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The small bitmap descriptor and its bit buffer are owned by the cache and should never be freed by the application. They might as well disappear from memory on the next cache lookup, so don't treat them as persistent data.

    +

    The descriptor's buffer field is set to 0 to indicate a missing glyph bitmap.

    +

    If anode is not NULL, it receives the address of the cache node containing the bitmap, after increasing its reference count. This ensures that the node (as well as the image) will always be kept in the cache until you call FTC_Node_Unref to ‘release’ it.

    +

    If anode is NULL, the cache node is left unchanged, which means that the bitmap could be flushed out of the cache on the next call to one of the caching sub-system APIs. Don't assume that it is persistent!

    +
    + +

    FTC_CMapCache

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct FTC_CMapCacheRec_*  FTC_CMapCache;
+
    + +

    An opaque handle used to model a charmap cache. This cache is to hold character codes -> glyph indices mappings.

    +
    + +

    FTC_CMapCache_New

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_CMapCache_New( FTC_Manager     manager,
+                     FTC_CMapCache  *acache );
+
    + +

    Create a new charmap cache.

    +

    input

    + + +
    manager +

    A handle to the cache manager.

    +
    + +

    output

    + + +
    acache +

    A new cache handle. NULL in case of error.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Like all other caches, this one will be destroyed with the cache manager.

    +
    + +

    FTC_CMapCache_Lookup

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_UInt )
+  FTC_CMapCache_Lookup( FTC_CMapCache  cache,
+                        FTC_FaceID     face_id,
+                        FT_Int         cmap_index,
+                        FT_UInt32      char_code );
+
    + +

    Translate a character code into a glyph index, using the charmap cache.

    +

    input

    + + + + + +
    cache +

    A charmap cache handle.

    +
    face_id +

    The source face ID.

    +
    cmap_index +

    The index of the charmap in the source face. Any negative value means to use the cache FT_Face's default charmap.

    +
    char_code +

    The character code (in the corresponding charmap).

    +
    + +

    return

    + +

    Glyph index. 0 means ‘no glyph’.

    +
    + +

    FTC_ScalerRec

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct  FTC_ScalerRec_
+  {
+    FTC_FaceID  face_id;
+    FT_UInt     width;
+    FT_UInt     height;
+    FT_Int      pixel;
+    FT_UInt     x_res;
+    FT_UInt     y_res;
+
+  } FTC_ScalerRec;
+
    + +

    A structure used to describe a given character size in either pixels or points to the cache manager. See FTC_Manager_LookupSize.

    +

    fields

    + + + + + + + +
    face_id +

    The source face ID.

    +
    width +

    The character width.

    +
    height +

    The character height.

    +
    pixel +

    A Boolean. If 1, the width and height fields are interpreted as integer pixel character sizes. Otherwise, they are expressed as 1/64 of points.

    +
    x_res +

    Only used when pixel is value 0 to indicate the horizontal resolution in dpi.

    +
    y_res +

    Only used when pixel is value 0 to indicate the vertical resolution in dpi.

    +
    + +

    note

    + +

    This type is mainly used to retrieve FT_Size objects through the cache manager.

    +
    + +

    FTC_Scaler

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct FTC_ScalerRec_*  FTC_Scaler;
+
    + +

    A handle to an FTC_ScalerRec structure.

    +
    + +

    FTC_ImageTypeRec

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct  FTC_ImageTypeRec_
+  {
+    FTC_FaceID  face_id;
+    FT_UInt     width;
+    FT_UInt     height;
+    FT_Int32    flags;
+
+  } FTC_ImageTypeRec;
+
    + +

    A structure used to model the type of images in a glyph cache.

    +

    fields

    + + + + + +
    face_id +

    The face ID.

    +
    width +

    The width in pixels.

    +
    height +

    The height in pixels.

    +
    flags +

    The load flags, as in FT_Load_Glyph.

    +
    + +
    + +

    FTC_ImageType

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct FTC_ImageTypeRec_*  FTC_ImageType;
+
    + +

    A handle to an FTC_ImageTypeRec structure.

    +
    + +

    FTC_ImageCache_LookupScaler

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_ImageCache_LookupScaler( FTC_ImageCache  cache,
+                               FTC_Scaler      scaler,
+                               FT_ULong        load_flags,
+                               FT_UInt         gindex,
+                               FT_Glyph       *aglyph,
+                               FTC_Node       *anode );
+
    + +

    A variant of FTC_ImageCache_Lookup that uses an FTC_ScalerRec to specify the face ID and its size.

    +

    input

    + + + + + +
    cache +

    A handle to the source glyph image cache.

    +
    scaler +

    A pointer to a scaler descriptor.

    +
    load_flags +

    The corresponding load flags.

    +
    gindex +

    The glyph index to retrieve.

    +
    + +

    output

    + + + +
    aglyph +

    The corresponding FT_Glyph object. 0 in case of failure.

    +
    anode +

    Used to return the address of the corresponding cache node after incrementing its reference count (see note below).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The returned glyph is owned and managed by the glyph image cache. Never try to transform or discard it manually! You can however create a copy with FT_Glyph_Copy and modify the new one.

    +

    If anode is not NULL, it receives the address of the cache node containing the glyph image, after increasing its reference count. This ensures that the node (as well as the FT_Glyph) will always be kept in the cache until you call FTC_Node_Unref to ‘release’ it.

    +

    If anode is NULL, the cache node is left unchanged, which means that the FT_Glyph could be flushed out of the cache on the next call to one of the caching sub-system APIs. Don't assume that it is persistent!

    +

    Calls to FT_Set_Char_Size and friends have no effect on cached glyphs; you should always use the FreeType cache API instead.

    +
    + +

    FTC_SBitRec

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      typedef struct  FTC_SBitRec_
+  {
+    FT_Byte   width;
+    FT_Byte   height;
+    FT_Char   left;
+    FT_Char   top;
+
+    FT_Byte   format;
+    FT_Byte   max_grays;
+    FT_Short  pitch;
+    FT_Char   xadvance;
+    FT_Char   yadvance;
+
+    FT_Byte*  buffer;
+
+  } FTC_SBitRec;
+
    + +

    A very compact structure used to describe a small glyph bitmap.

    +

    fields

    + + + + + + + + + + + +
    width +

    The bitmap width in pixels.

    +
    height +

    The bitmap height in pixels.

    +
    left +

    The horizontal distance from the pen position to the left bitmap border (a.k.a. ‘left side bearing’, or ‘lsb’).

    +
    top +

    The vertical distance from the pen position (on the baseline) to the upper bitmap border (a.k.a. ‘top side bearing’). The distance is positive for upwards y coordinates.

    +
    format +

    The format of the glyph bitmap (monochrome or gray).

    +
    max_grays +

    Maximum gray level value (in the range 1 to 255).

    +
    pitch +

    The number of bytes per bitmap line. May be positive or negative.

    +
    xadvance +

    The horizontal advance width in pixels.

    +
    yadvance +

    The vertical advance height in pixels.

    +
    buffer +

    A pointer to the bitmap pixels.

    +
    + +
    + +

    FTC_SBitCache_LookupScaler

    +

    Defined in FT_CACHE_H (freetype/ftcache.h).

    +
      FT_EXPORT( FT_Error )
+  FTC_SBitCache_LookupScaler( FTC_SBitCache  cache,
+                              FTC_Scaler     scaler,
+                              FT_ULong       load_flags,
+                              FT_UInt        gindex,
+                              FTC_SBit      *sbit,
+                              FTC_Node      *anode );
+
    + +

    A variant of FTC_SBitCache_Lookup that uses an FTC_ScalerRec to specify the face ID and its size.

    +

    input

    + + + + + +
    cache +

    A handle to the source sbit cache.

    +
    scaler +

    A pointer to the scaler descriptor.

    +
    load_flags +

    The corresponding load flags.

    +
    gindex +

    The glyph index.

    +
    + +

    output

    + + + +
    sbit +

    A handle to a small bitmap descriptor.

    +
    anode +

    Used to return the address of the corresponding cache node after incrementing its reference count (see note below).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The small bitmap descriptor and its bit buffer are owned by the cache and should never be freed by the application. They might as well disappear from memory on the next cache lookup, so don't treat them as persistent data.

    +

    The descriptor's buffer field is set to 0 to indicate a missing glyph bitmap.

    +

    If anode is not NULL, it receives the address of the cache node containing the bitmap, after increasing its reference count. This ensures that the node (as well as the image) will always be kept in the cache until you call FTC_Node_Unref to ‘release’ it.

    +

    If anode is NULL, the cache node is left unchanged, which means that the bitmap could be flushed out of the cache on the next call to one of the caching sub-system APIs. Don't assume that it is persistent!

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-cff_driver.html b/modules/freetype2/docs/reference/ft2-cff_driver.html new file mode 100644 index 0000000000..a1e408305f --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-cff_driver.html @@ -0,0 +1,1367 @@ + + + + + + + + + + + + + + + + + + + + + The CFF driver - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Controlling FreeType Modules » The CFF driver

    +
    +

    The CFF driver

    +

    Synopsis

    +

    While FreeType's CFF driver doesn't expose API functions by itself, it is possible to control its behaviour with FT_Property_Set and FT_Property_Get.

    +

    The CFF driver's module name is ‘cff’.

    +

    Available properties are hinting-engine, no-stem-darkening, darkening-parameters, and random-seed, as documented in the ‘Driver properties’ section.

    +

    Hinting and anti-aliasing principles of the new engine

    +

    The rasterizer is positioning horizontal features (e.g., ascender height & x-height, or crossbars) on the pixel grid and minimizing the amount of anti-aliasing applied to them, while placing vertical features (vertical stems) on the pixel grid without hinting, thus representing the stem position and weight accurately. Sometimes the vertical stems may be only partially black. In this context, ‘anti-aliasing’ means that stems are not positioned exactly on pixel borders, causing a fuzzy appearance.

    +

    There are two principles behind this approach.

    +

    1) No hinting in the horizontal direction: Unlike ‘superhinted’ TrueType, which changes glyph widths to accommodate regular inter-glyph spacing, Adobe's approach is ‘faithful to the design’ in representing both the glyph width and the inter-glyph spacing designed for the font. This makes the screen display as close as it can be to the result one would get with infinite resolution, while preserving what is considered the key characteristics of each glyph. Note that the distances between unhinted and grid-fitted positions at small sizes are comparable to kerning values and thus would be noticeable (and distracting) while reading if hinting were applied.

    +

    One of the reasons to not hint horizontally is anti-aliasing for LCD screens: The pixel geometry of modern displays supplies three vertical subpixels as the eye moves horizontally across each visible pixel. On devices where we can be certain this characteristic is present a rasterizer can take advantage of the subpixels to add increments of weight. In Western writing systems this turns out to be the more critical direction anyway; the weights and spacing of vertical stems (see above) are central to Armenian, Cyrillic, Greek, and Latin type designs. Even when the rasterizer uses greyscale anti-aliasing instead of color (a necessary compromise when one doesn't know the screen characteristics), the unhinted vertical features preserve the design's weight and spacing much better than aliased type would.

    +

    2) Alignment in the vertical direction: Weights and spacing along the y axis are less critical; what is much more important is the visual alignment of related features (like cap-height and x-height). The sense of alignment for these is enhanced by the sharpness of grid-fit edges, while the cruder vertical resolution (full pixels instead of ⅓ pixels) is less of a problem.

    +

    On the technical side, horizontal alignment zones for ascender, x-height, and other important height values (traditionally called ‘blue zones’) as defined in the font are positioned independently, each being rounded to the nearest pixel edge, taking care of overshoot suppression at small sizes, stem darkening, and scaling.

    +

    Hstems (that is, hint values defined in the font to help align horizontal features) that fall within a blue zone are said to be ‘captured’ and are aligned to that zone. Uncaptured stems are moved in one of four ways, top edge up or down, bottom edge up or down. Unless there are conflicting hstems, the smallest movement is taken to minimize distortion.

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    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-character_mapping.html b/modules/freetype2/docs/reference/ft2-character_mapping.html new file mode 100644 index 0000000000..891f03b674 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-character_mapping.html @@ -0,0 +1,1937 @@ + + + + + + + + + + + + + + + + + + + + + Character Mapping - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Core API » Character Mapping

    +
    +

    Character Mapping

    +

    Synopsis

    +

    This section holds functions and structures that are related to mapping character input codes to glyph indices.

    +

    Note that for many scripts the simplistic approach used by FreeType of mapping a single character to a single glyph is not valid or possible! In general, a higher-level library like HarfBuzz or ICU should be used for handling text strings.

    +

    FT_CharMap

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_CharMapRec_*  FT_CharMap;
+
    + +

    A handle to a character map (usually abbreviated to ‘charmap’). A charmap is used to translate character codes in a given encoding into glyph indexes for its parent's face. Some font formats may provide several charmaps per font.

    +

    Each face object owns zero or more charmaps, but only one of them can be ‘active’, providing the data used by FT_Get_Char_Index or FT_Load_Char.

    +

    The list of available charmaps in a face is available through the face->num_charmaps and face->charmaps fields of FT_FaceRec.

    +

    The currently active charmap is available as face->charmap. You should call FT_Set_Charmap to change it.

    +

    note

    + +

    When a new face is created (either through FT_New_Face or FT_Open_Face), the library looks for a Unicode charmap within the list and automatically activates it. If there is no Unicode charmap, FreeType doesn't set an ‘active’ charmap.

    +

    also

    + +

    See FT_CharMapRec for the publicly accessible fields of a given character map.

    +
    + +

    FT_CharMapRec

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_CharMapRec_
+  {
+    FT_Face      face;
+    FT_Encoding  encoding;
+    FT_UShort    platform_id;
+    FT_UShort    encoding_id;
+
+  } FT_CharMapRec;
+
    + +

    The base charmap structure.

    +

    fields

    + + + + + +
    face +

    A handle to the parent face object.

    +
    encoding +

    An FT_Encoding tag identifying the charmap. Use this with FT_Select_Charmap.

    +
    platform_id +

    An ID number describing the platform for the following encoding ID. This comes directly from the TrueType specification and gets emulated for other formats.

    +
    encoding_id +

    A platform-specific encoding number. This also comes from the TrueType specification and gets emulated similarly.

    +
    + +
    + +

    FT_Encoding

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef enum  FT_Encoding_
+  {
+    FT_ENC_TAG( FT_ENCODING_NONE, 0, 0, 0, 0 ),
+
+    FT_ENC_TAG( FT_ENCODING_MS_SYMBOL, 's', 'y', 'm', 'b' ),
+    FT_ENC_TAG( FT_ENCODING_UNICODE,   'u', 'n', 'i', 'c' ),
+
+    FT_ENC_TAG( FT_ENCODING_SJIS,    's', 'j', 'i', 's' ),
+    FT_ENC_TAG( FT_ENCODING_PRC,     'g', 'b', ' ', ' ' ),
+    FT_ENC_TAG( FT_ENCODING_BIG5,    'b', 'i', 'g', '5' ),
+    FT_ENC_TAG( FT_ENCODING_WANSUNG, 'w', 'a', 'n', 's' ),
+    FT_ENC_TAG( FT_ENCODING_JOHAB,   'j', 'o', 'h', 'a' ),
+
+    /* for backward compatibility */
+    FT_ENCODING_GB2312     = FT_ENCODING_PRC,
+    FT_ENCODING_MS_SJIS    = FT_ENCODING_SJIS,
+    FT_ENCODING_MS_GB2312  = FT_ENCODING_PRC,
+    FT_ENCODING_MS_BIG5    = FT_ENCODING_BIG5,
+    FT_ENCODING_MS_WANSUNG = FT_ENCODING_WANSUNG,
+    FT_ENCODING_MS_JOHAB   = FT_ENCODING_JOHAB,
+
+    FT_ENC_TAG( FT_ENCODING_ADOBE_STANDARD, 'A', 'D', 'O', 'B' ),
+    FT_ENC_TAG( FT_ENCODING_ADOBE_EXPERT,   'A', 'D', 'B', 'E' ),
+    FT_ENC_TAG( FT_ENCODING_ADOBE_CUSTOM,   'A', 'D', 'B', 'C' ),
+    FT_ENC_TAG( FT_ENCODING_ADOBE_LATIN_1,  'l', 'a', 't', '1' ),
+
+    FT_ENC_TAG( FT_ENCODING_OLD_LATIN_2, 'l', 'a', 't', '2' ),
+
+    FT_ENC_TAG( FT_ENCODING_APPLE_ROMAN, 'a', 'r', 'm', 'n' )
+
+  } FT_Encoding;
+
+
+  /* these constants are deprecated; use the corresponding `FT_Encoding` */
+  /* values instead                                                      */
+#define ft_encoding_none            FT_ENCODING_NONE
+#define ft_encoding_unicode         FT_ENCODING_UNICODE
+#define ft_encoding_symbol          FT_ENCODING_MS_SYMBOL
+#define ft_encoding_latin_1         FT_ENCODING_ADOBE_LATIN_1
+#define ft_encoding_latin_2         FT_ENCODING_OLD_LATIN_2
+#define ft_encoding_sjis            FT_ENCODING_SJIS
+#define ft_encoding_gb2312          FT_ENCODING_PRC
+#define ft_encoding_big5            FT_ENCODING_BIG5
+#define ft_encoding_wansung         FT_ENCODING_WANSUNG
+#define ft_encoding_johab           FT_ENCODING_JOHAB
+
+#define ft_encoding_adobe_standard  FT_ENCODING_ADOBE_STANDARD
+#define ft_encoding_adobe_expert    FT_ENCODING_ADOBE_EXPERT
+#define ft_encoding_adobe_custom    FT_ENCODING_ADOBE_CUSTOM
+#define ft_encoding_apple_roman     FT_ENCODING_APPLE_ROMAN
+
    + +

    An enumeration to specify character sets supported by charmaps. Used in the FT_Select_Charmap API function.

    +

    note

    + +

    Despite the name, this enumeration lists specific character repertoires (i.e., charsets), and not text encoding methods (e.g., UTF-8, UTF-16, etc.).

    +

    Other encodings might be defined in the future.

    +

    values

    + + + + + + + + + + + + + + + + + + + + +
    FT_ENCODING_NONE +

    The encoding value 0 is reserved for all formats except BDF, PCF, and Windows FNT; see below for more information.

    +
    FT_ENCODING_UNICODE +

    The Unicode character set. This value covers all versions of the Unicode repertoire, including ASCII and Latin-1. Most fonts include a Unicode charmap, but not all of them.

    +

    For example, if you want to access Unicode value U+1F028 (and the font contains it), use value 0x1F028 as the input value for FT_Get_Char_Index.

    +
    FT_ENCODING_MS_SYMBOL +

    Microsoft Symbol encoding, used to encode mathematical symbols and wingdings. For more information, see ‘https://www.microsoft.com/typography/otspec/recom.htm#non-standard-symbol-fonts’, ‘http://www.kostis.net/charsets/symbol.htm’, and ‘http://www.kostis.net/charsets/wingding.htm’.

    +

    This encoding uses character codes from the PUA (Private Unicode Area) in the range U+F020-U+F0FF.

    +
    FT_ENCODING_SJIS +

    Shift JIS encoding for Japanese. More info at ‘https://en.wikipedia.org/wiki/Shift_JIS’. See note on multi-byte encodings below.

    +
    FT_ENCODING_PRC +

    Corresponds to encoding systems mainly for Simplified Chinese as used in People's Republic of China (PRC). The encoding layout is based on GB 2312 and its supersets GBK and GB 18030.

    +
    FT_ENCODING_BIG5 +

    Corresponds to an encoding system for Traditional Chinese as used in Taiwan and Hong Kong.

    +
    FT_ENCODING_WANSUNG +

    Corresponds to the Korean encoding system known as Extended Wansung (MS Windows code page 949). For more information see ‘https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WindowsBestFit/bestfit949.txt’.

    +
    FT_ENCODING_JOHAB +

    The Korean standard character set (KS C 5601-1992), which corresponds to MS Windows code page 1361. This character set includes all possible Hangul character combinations.

    +
    FT_ENCODING_ADOBE_LATIN_1 +

    Corresponds to a Latin-1 encoding as defined in a Type 1 PostScript font. It is limited to 256 character codes.

    +
    FT_ENCODING_ADOBE_STANDARD +

    Adobe Standard encoding, as found in Type 1, CFF, and OpenType/CFF fonts. It is limited to 256 character codes.

    +
    FT_ENCODING_ADOBE_EXPERT +

    Adobe Expert encoding, as found in Type 1, CFF, and OpenType/CFF fonts. It is limited to 256 character codes.

    +
    FT_ENCODING_ADOBE_CUSTOM +

    Corresponds to a custom encoding, as found in Type 1, CFF, and OpenType/CFF fonts. It is limited to 256 character codes.

    +
    FT_ENCODING_APPLE_ROMAN +

    Apple roman encoding. Many TrueType and OpenType fonts contain a charmap for this 8-bit encoding, since older versions of Mac OS are able to use it.

    +
    FT_ENCODING_OLD_LATIN_2 +

    This value is deprecated and was neither used nor reported by FreeType. Don't use or test for it.

    +
    FT_ENCODING_MS_SJIS +

    Same as FT_ENCODING_SJIS. Deprecated.

    +
    FT_ENCODING_MS_GB2312 +

    Same as FT_ENCODING_PRC. Deprecated.

    +
    FT_ENCODING_MS_BIG5 +

    Same as FT_ENCODING_BIG5. Deprecated.

    +
    FT_ENCODING_MS_WANSUNG +

    Same as FT_ENCODING_WANSUNG. Deprecated.

    +
    FT_ENCODING_MS_JOHAB +

    Same as FT_ENCODING_JOHAB. Deprecated.

    +
    + +

    note

    + +

    When loading a font, FreeType makes a Unicode charmap active if possible (either if the font provides such a charmap, or if FreeType can synthesize one from PostScript glyph name dictionaries; in either case, the charmap is tagged with FT_ENCODING_UNICODE). If such a charmap is synthesized, it is placed at the first position of the charmap array.

    +

    All other encodings are considered legacy and tagged only if explicitly defined in the font file. Otherwise, FT_ENCODING_NONE is used.

    +

    FT_ENCODING_NONE is set by the BDF and PCF drivers if the charmap is neither Unicode nor ISO-8859-1 (otherwise it is set to FT_ENCODING_UNICODE). Use FT_Get_BDF_Charset_ID to find out which encoding is really present. If, for example, the cs_registry field is ‘KOI8’ and the cs_encoding field is ‘R’, the font is encoded in KOI8-R.

    +

    FT_ENCODING_NONE is always set (with a single exception) by the winfonts driver. Use FT_Get_WinFNT_Header and examine the charset field of the FT_WinFNT_HeaderRec structure to find out which encoding is really present. For example, FT_WinFNT_ID_CP1251 (204) means Windows code page 1251 (for Russian).

    +

    FT_ENCODING_NONE is set if platform_id is TT_PLATFORM_MACINTOSH and encoding_id is not TT_MAC_ID_ROMAN (otherwise it is set to FT_ENCODING_APPLE_ROMAN).

    +

    If platform_id is TT_PLATFORM_MACINTOSH, use the function FT_Get_CMap_Language_ID to query the Mac language ID that may be needed to be able to distinguish Apple encoding variants. See

    +

    https://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/Readme.txt

    +

    to get an idea how to do that. Basically, if the language ID is 0, don't use it, otherwise subtract 1 from the language ID. Then examine encoding_id. If, for example, encoding_id is TT_MAC_ID_ROMAN and the language ID (minus 1) is TT_MAC_LANGID_GREEK, it is the Greek encoding, not Roman. TT_MAC_ID_ARABIC with TT_MAC_LANGID_FARSI means the Farsi variant of the Arabic encoding.

    +
    + +

    FT_ENC_TAG

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #ifndef FT_ENC_TAG
+
+#define FT_ENC_TAG( value, a, b, c, d )                             \
+          value = ( ( FT_STATIC_BYTE_CAST( FT_UInt32, a ) << 24 ) | \
+                    ( FT_STATIC_BYTE_CAST( FT_UInt32, b ) << 16 ) | \
+                    ( FT_STATIC_BYTE_CAST( FT_UInt32, c ) <<  8 ) | \
+                      FT_STATIC_BYTE_CAST( FT_UInt32, d )         )
+
+#endif /* FT_ENC_TAG */
+
    + +

    This macro converts four-letter tags into an unsigned long. It is used to define ‘encoding’ identifiers (see FT_Encoding).

    +

    note

    + +

    Since many 16-bit compilers don't like 32-bit enumerations, you should redefine this macro in case of problems to something like this: +

      #define FT_ENC_TAG( value, a, b, c, d )  value
+

    +

    to get a simple enumeration without assigning special numbers.

    +
    + +

    FT_Select_Charmap

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Select_Charmap( FT_Face      face,
+                     FT_Encoding  encoding );
+
    + +

    Select a given charmap by its encoding tag (as listed in freetype.h).

    +

    inout

    + + +
    face +

    A handle to the source face object.

    +
    + +

    input

    + + +
    encoding +

    A handle to the selected encoding.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function returns an error if no charmap in the face corresponds to the encoding queried here.

    +

    Because many fonts contain more than a single cmap for Unicode encoding, this function has some special code to select the one that covers Unicode best (‘best’ in the sense that a UCS-4 cmap is preferred to a UCS-2 cmap). It is thus preferable to FT_Set_Charmap in this case.

    +
    + +

    FT_Set_Charmap

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_Charmap( FT_Face     face,
+                  FT_CharMap  charmap );
+
    + +

    Select a given charmap for character code to glyph index mapping.

    +

    inout

    + + +
    face +

    A handle to the source face object.

    +
    + +

    input

    + + +
    charmap +

    A handle to the selected charmap.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function returns an error if the charmap is not part of the face (i.e., if it is not listed in the face->charmaps table).

    +

    It also fails if an OpenType type 14 charmap is selected (which doesn't map character codes to glyph indices at all).

    +
    + +

    FT_Get_Charmap_Index

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Int )
+  FT_Get_Charmap_Index( FT_CharMap  charmap );
+
    + +

    Retrieve index of a given charmap.

    +

    input

    + + +
    charmap +

    A handle to a charmap.

    +
    + +

    return

    + +

    The index into the array of character maps within the face to which charmap belongs. If an error occurs, -1 is returned.

    +
    + +

    FT_Get_Char_Index

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_UInt )
+  FT_Get_Char_Index( FT_Face   face,
+                     FT_ULong  charcode );
+
    + +

    Return the glyph index of a given character code. This function uses the currently selected charmap to do the mapping.

    +

    input

    + + + +
    face +

    A handle to the source face object.

    +
    charcode +

    The character code.

    +
    + +

    return

    + +

    The glyph index. 0 means ‘undefined character code’.

    +

    note

    + +

    If you use FreeType to manipulate the contents of font files directly, be aware that the glyph index returned by this function doesn't always correspond to the internal indices used within the file. This is done to ensure that value 0 always corresponds to the ‘missing glyph’. If the first glyph is not named ‘.notdef’, then for Type 1 and Type 42 fonts, ‘.notdef’ will be moved into the glyph ID 0 position, and whatever was there will be moved to the position ‘.notdef’ had. For Type 1 fonts, if there is no ‘.notdef’ glyph at all, then one will be created at index 0 and whatever was there will be moved to the last index – Type 42 fonts are considered invalid under this condition.

    +
    + +

    FT_Get_First_Char

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_ULong )
+  FT_Get_First_Char( FT_Face   face,
+                     FT_UInt  *agindex );
+
    + +

    Return the first character code in the current charmap of a given face, together with its corresponding glyph index.

    +

    input

    + + +
    face +

    A handle to the source face object.

    +
    + +

    output

    + + +
    agindex +

    Glyph index of first character code. 0 if charmap is empty.

    +
    + +

    return

    + +

    The charmap's first character code.

    +

    note

    + +

    You should use this function together with FT_Get_Next_Char to parse all character codes available in a given charmap. The code should look like this: +

      FT_ULong  charcode;
+  FT_UInt   gindex;
+
+
+  charcode = FT_Get_First_Char( face, &gindex );
+  while ( gindex != 0 )
+  {
+    ... do something with (charcode,gindex) pair ...
+
+    charcode = FT_Get_Next_Char( face, charcode, &gindex );
+  }
+

    +

    Be aware that character codes can have values up to 0xFFFFFFFF; this might happen for non-Unicode or malformed cmaps. However, even with regular Unicode encoding, so-called ‘last resort fonts’ (using SFNT cmap format 13, see function FT_Get_CMap_Format) normally have entries for all Unicode characters up to 0x1FFFFF, which can cause a lot of iterations.

    +

    Note that *agindex is set to 0 if the charmap is empty. The result itself can be 0 in two cases: if the charmap is empty or if the value 0 is the first valid character code.

    +
    + +

    FT_Get_Next_Char

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_ULong )
+  FT_Get_Next_Char( FT_Face    face,
+                    FT_ULong   char_code,
+                    FT_UInt   *agindex );
+
    + +

    Return the next character code in the current charmap of a given face following the value char_code, as well as the corresponding glyph index.

    +

    input

    + + + +
    face +

    A handle to the source face object.

    +
    char_code +

    The starting character code.

    +
    + +

    output

    + + +
    agindex +

    Glyph index of next character code. 0 if charmap is empty.

    +
    + +

    return

    + +

    The charmap's next character code.

    +

    note

    + +

    You should use this function with FT_Get_First_Char to walk over all character codes available in a given charmap. See the note for that function for a simple code example.

    +

    Note that *agindex is set to 0 when there are no more codes in the charmap.

    +
    + +

    FT_Load_Char

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Load_Char( FT_Face   face,
+                FT_ULong  char_code,
+                FT_Int32  load_flags );
+
    + +

    Load a glyph into the glyph slot of a face object, accessed by its character code.

    +

    inout

    + + +
    face +

    A handle to a target face object where the glyph is loaded.

    +
    + +

    input

    + + + +
    char_code +

    The glyph's character code, according to the current charmap used in the face.

    +
    load_flags +

    A flag indicating what to load for this glyph. The FT_LOAD_XXX constants can be used to control the glyph loading process (e.g., whether the outline should be scaled, whether to load bitmaps or not, whether to hint the outline, etc).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function simply calls FT_Get_Char_Index and FT_Load_Glyph.

    +

    Many fonts contain glyphs that can't be loaded by this function since its glyph indices are not listed in any of the font's charmaps.

    +

    If no active cmap is set up (i.e., face->charmap is zero), the call to FT_Get_Char_Index is omitted, and the function behaves identically to FT_Load_Glyph.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-cid_fonts.html b/modules/freetype2/docs/reference/ft2-cid_fonts.html new file mode 100644 index 0000000000..34ab8d42ee --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-cid_fonts.html @@ -0,0 +1,1509 @@ + + + + + + + + + + + + + + + + + + + + + CID Fonts - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Format-Specific API » CID Fonts

    +
    +

    CID Fonts

    +

    Synopsis

    +

    This section contains the declaration of CID-keyed font-specific functions.

    +

    FT_Get_CID_Registry_Ordering_Supplement

    +

    Defined in FT_CID_H (freetype/ftcid.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_CID_Registry_Ordering_Supplement( FT_Face       face,
+                                           const char*  *registry,
+                                           const char*  *ordering,
+                                           FT_Int       *supplement );
+
    + +

    Retrieve the Registry/Ordering/Supplement triple (also known as the "R/O/S") from a CID-keyed font.

    +

    input

    + + +
    face +

    A handle to the input face.

    +
    + +

    output

    + + + + +
    registry +

    The registry, as a C string, owned by the face.

    +
    ordering +

    The ordering, as a C string, owned by the face.

    +
    supplement +

    The supplement.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function only works with CID faces, returning an error otherwise.

    +

    since

    + +

    2.3.6

    +
    + +

    FT_Get_CID_Is_Internally_CID_Keyed

    +

    Defined in FT_CID_H (freetype/ftcid.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_CID_Is_Internally_CID_Keyed( FT_Face   face,
+                                      FT_Bool  *is_cid );
+
    + +

    Retrieve the type of the input face, CID keyed or not. In contrast to the FT_IS_CID_KEYED macro this function returns successfully also for CID-keyed fonts in an SFNT wrapper.

    +

    input

    + + +
    face +

    A handle to the input face.

    +
    + +

    output

    + + +
    is_cid +

    The type of the face as an FT_Bool.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function only works with CID faces and OpenType fonts, returning an error otherwise.

    +

    since

    + +

    2.3.9

    +
    + +

    FT_Get_CID_From_Glyph_Index

    +

    Defined in FT_CID_H (freetype/ftcid.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_CID_From_Glyph_Index( FT_Face   face,
+                               FT_UInt   glyph_index,
+                               FT_UInt  *cid );
+
    + +

    Retrieve the CID of the input glyph index.

    +

    input

    + + + +
    face +

    A handle to the input face.

    +
    glyph_index +

    The input glyph index.

    +
    + +

    output

    + + +
    cid +

    The CID as an FT_UInt.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function only works with CID faces and OpenType fonts, returning an error otherwise.

    +

    since

    + +

    2.3.9

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
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    FreeType » Docs » Extended API » Glyph Color Management

    +
    +

    Glyph Color Management

    +

    Synopsis

    +

    The functions described here allow access and manipulation of color palette entries in OpenType's ‘CPAL’ tables.

    +

    FT_Color

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_Color_
+  {
+    FT_Byte  blue;
+    FT_Byte  green;
+    FT_Byte  red;
+    FT_Byte  alpha;
+
+  } FT_Color;
+
    + +

    This structure models a BGRA color value of a ‘CPAL’ palette entry.

    +

    The used color space is sRGB; the colors are not pre-multiplied, and alpha values must be explicitly set.

    +

    fields

    + + + + + +
    blue +

    Blue value.

    +
    green +

    Green value.

    +
    red +

    Red value.

    +
    alpha +

    Alpha value, giving the red, green, and blue color's opacity.

    +
    + +

    since

    + +

    2.10

    +
    + +

    FT_PALETTE_XXX

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
    #define FT_PALETTE_FOR_LIGHT_BACKGROUND  0x01
+#define FT_PALETTE_FOR_DARK_BACKGROUND   0x02
+
    + +

    A list of bit field constants used in the palette_flags array of the FT_Palette_Data structure to indicate for which background a palette with a given index is usable.

    +

    values

    + + + +
    FT_PALETTE_FOR_LIGHT_BACKGROUND +

    The palette is appropriate to use when displaying the font on a light background such as white.

    +
    FT_PALETTE_FOR_DARK_BACKGROUND +

    The palette is appropriate to use when displaying the font on a dark background such as black.

    +
    + +

    since

    + +

    2.10

    +
    + +

    FT_Palette_Data

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_Palette_Data_ {
+    FT_UShort         num_palettes;
+    const FT_UShort*  palette_name_ids;
+    const FT_UShort*  palette_flags;
+
+    FT_UShort         num_palette_entries;
+    const FT_UShort*  palette_entry_name_ids;
+
+  } FT_Palette_Data;
+
    + +

    This structure holds the data of the ‘CPAL’ table.

    +

    fields

    + + + + + + +
    num_palettes +

    The number of palettes.

    +
    palette_name_ids +

    An optional read-only array of palette name IDs with num_palettes elements, corresponding to entries like ‘dark’ or ‘light’ in the font's ‘name’ table.

    +

    An empty name ID in the ‘CPAL’ table gets represented as value 0xFFFF.

    +

    NULL if the font's ‘CPAL’ table doesn't contain appropriate data.

    +
    palette_flags +

    An optional read-only array of palette flags with num_palettes elements. Possible values are an ORed combination of FT_PALETTE_FOR_LIGHT_BACKGROUND and FT_PALETTE_FOR_DARK_BACKGROUND.

    +

    NULL if the font's ‘CPAL’ table doesn't contain appropriate data.

    +
    num_palette_entries +

    The number of entries in a single palette. All palettes have the same size.

    +
    palette_entry_name_ids +

    An optional read-only array of palette entry name IDs with num_palette_entries. In each palette, entries with the same index have the same function. For example, index 0 might correspond to string ‘outline’ in the font's ‘name’ table to indicate that this palette entry is used for outlines, index 1 might correspond to ‘fill’ to indicate the filling color palette entry, etc.

    +

    An empty entry name ID in the ‘CPAL’ table gets represented as value 0xFFFF.

    +

    NULL if the font's ‘CPAL’ table doesn't contain appropriate data.

    +
    + +

    note

    + +

    Use function FT_Get_Sfnt_Name to map name IDs and entry name IDs to name strings.

    +

    Use function FT_Palette_Select to get the colors associated with a palette entry.

    +

    since

    + +

    2.10

    +
    + +

    FT_Palette_Data_Get

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Palette_Data_Get( FT_Face           face,
+                       FT_Palette_Data  *apalette );
+
    + +

    Retrieve the face's color palette data.

    +

    input

    + + +
    face +

    The source face handle.

    +
    + +

    output

    + + +
    apalette +

    A pointer to an FT_Palette_Data structure.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    All arrays in the returned FT_Palette_Data structure are read-only.

    +

    This function always returns an error if the config macro TT_CONFIG_OPTION_COLOR_LAYERS is not defined in ftoption.h.

    +

    since

    + +

    2.10

    +
    + +

    FT_Palette_Select

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Palette_Select( FT_Face     face,
+                     FT_UShort   palette_index,
+                     FT_Color*  *apalette );
+
    + +

    This function has two purposes.

    +

    (1) It activates a palette for rendering color glyphs, and

    +

    (2) it retrieves all (unmodified) color entries of this palette. This function returns a read-write array, which means that a calling application can modify the palette entries on demand.

    +

    A corollary of (2) is that calling the function, then modifying some values, then calling the function again with the same arguments resets all color entries to the original ‘CPAL’ values; all user modifications are lost.

    +

    input

    + + + +
    face +

    The source face handle.

    +
    palette_index +

    The palette index.

    +
    + +

    output

    + + +
    apalette +

    An array of color entries for a palette with index palette_index, having num_palette_entries elements (as found in the FT_Palette_Data structure). If apalette is set to NULL, no array gets returned (and no color entries can be modified).

    +

    In case the font doesn't support color palettes, NULL is returned.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The array pointed to by apalette_entries is owned and managed by FreeType.

    +

    This function always returns an error if the config macro TT_CONFIG_OPTION_COLOR_LAYERS is not defined in ftoption.h.

    +

    since

    + +

    2.10

    +
    + +

    FT_Palette_Set_Foreground_Color

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Palette_Set_Foreground_Color( FT_Face   face,
+                                   FT_Color  foreground_color );
+
    + +

    ‘COLR’ uses palette index 0xFFFF to indicate a ‘text foreground color’. This function sets this value.

    +

    input

    + + + +
    face +

    The source face handle.

    +
    foreground_color +

    An FT_Color structure to define the text foreground color.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If this function isn't called, the text foreground color is set to white opaque (BGRA value 0xFFFFFFFF) if FT_PALETTE_FOR_DARK_BACKGROUND is present for the current palette, and black opaque (BGRA value 0x000000FF) otherwise, including the case that no palette types are available in the ‘CPAL’ table.

    +

    This function always returns an error if the config macro TT_CONFIG_OPTION_COLOR_LAYERS is not defined in ftoption.h.

    +

    since

    + +

    2.10

    +
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    FreeType » Docs » Support API » Computations

    +
    +

    Computations

    +

    Synopsis

    +

    This section contains various functions used to perform computations on 16.16 fixed-point numbers or 2D vectors. FreeType does not use floating-point data types.

    +

    Attention: Most arithmetic functions take FT_Long as arguments. For historical reasons, FreeType was designed under the assumption that FT_Long is a 32-bit integer; results can thus be undefined if the arguments don't fit into 32 bits.

    +

    FT_MulDiv

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Long )
+  FT_MulDiv( FT_Long  a,
+             FT_Long  b,
+             FT_Long  c );
+
    + +

    Compute (a*b)/c with maximum accuracy, using a 64-bit intermediate integer whenever necessary.

    +

    This function isn't necessarily as fast as some processor-specific operations, but is at least completely portable.

    +

    input

    + + + + +
    a +

    The first multiplier.

    +
    b +

    The second multiplier.

    +
    c +

    The divisor.

    +
    + +

    return

    + +

    The result of (a*b)/c. This function never traps when trying to divide by zero; it simply returns ‘MaxInt’ or ‘MinInt’ depending on the signs of a and b.

    +
    + +

    FT_MulFix

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Long )
+  FT_MulFix( FT_Long  a,
+             FT_Long  b );
+
    + +

    Compute (a*b)/0x10000 with maximum accuracy. Its main use is to multiply a given value by a 16.16 fixed-point factor.

    +

    input

    + + + +
    a +

    The first multiplier.

    +
    b +

    The second multiplier. Use a 16.16 factor here whenever possible (see note below).

    +
    + +

    return

    + +

    The result of (a*b)/0x10000.

    +

    note

    + +

    This function has been optimized for the case where the absolute value of a is less than 2048, and b is a 16.16 scaling factor. As this happens mainly when scaling from notional units to fractional pixels in FreeType, it resulted in noticeable speed improvements between versions 2.x and 1.x.

    +

    As a conclusion, always try to place a 16.16 factor as the second argument of this function; this can make a great difference.

    +
    + +

    FT_DivFix

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Long )
+  FT_DivFix( FT_Long  a,
+             FT_Long  b );
+
    + +

    Compute (a*0x10000)/b with maximum accuracy. Its main use is to divide a given value by a 16.16 fixed-point factor.

    +

    input

    + + + +
    a +

    The numerator.

    +
    b +

    The denominator. Use a 16.16 factor here.

    +
    + +

    return

    + +

    The result of (a*0x10000)/b.

    +
    + +

    FT_RoundFix

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Fixed )
+  FT_RoundFix( FT_Fixed  a );
+
    + +

    Round a 16.16 fixed number.

    +

    input

    + + +
    a +

    The number to be rounded.

    +
    + +

    return

    + +

    a rounded to the nearest 16.16 fixed integer, halfway cases away from zero.

    +

    note

    + +

    The function uses wrap-around arithmetic.

    +
    + +

    FT_CeilFix

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Fixed )
+  FT_CeilFix( FT_Fixed  a );
+
    + +

    Compute the smallest following integer of a 16.16 fixed number.

    +

    input

    + + +
    a +

    The number for which the ceiling function is to be computed.

    +
    + +

    return

    + +

    a rounded towards plus infinity.

    +

    note

    + +

    The function uses wrap-around arithmetic.

    +
    + +

    FT_FloorFix

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Fixed )
+  FT_FloorFix( FT_Fixed  a );
+
    + +

    Compute the largest previous integer of a 16.16 fixed number.

    +

    input

    + + +
    a +

    The number for which the floor function is to be computed.

    +
    + +

    return

    + +

    a rounded towards minus infinity.

    +
    + +

    FT_Vector_Transform

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( void )
+  FT_Vector_Transform( FT_Vector*        vector,
+                       const FT_Matrix*  matrix );
+
    + +

    Transform a single vector through a 2x2 matrix.

    +

    inout

    + + +
    vector +

    The target vector to transform.

    +
    + +

    input

    + + +
    matrix +

    A pointer to the source 2x2 matrix.

    +
    + +

    note

    + +

    The result is undefined if either vector or matrix is invalid.

    +
    + +

    FT_Matrix_Multiply

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      FT_EXPORT( void )
+  FT_Matrix_Multiply( const FT_Matrix*  a,
+                      FT_Matrix*        b );
+
    + +

    Perform the matrix operation b = a*b.

    +

    input

    + + +
    a +

    A pointer to matrix a.

    +
    + +

    inout

    + + +
    b +

    A pointer to matrix b.

    +
    + +

    note

    + +

    The result is undefined if either a or b is zero.

    +

    Since the function uses wrap-around arithmetic, results become meaningless if the arguments are very large.

    +
    + +

    FT_Matrix_Invert

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Matrix_Invert( FT_Matrix*  matrix );
+
    + +

    Invert a 2x2 matrix. Return an error if it can't be inverted.

    +

    inout

    + + +
    matrix +

    A pointer to the target matrix. Remains untouched in case of error.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Angle

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      typedef FT_Fixed  FT_Angle;
+
    + +

    This type is used to model angle values in FreeType. Note that the angle is a 16.16 fixed-point value expressed in degrees.

    +
    + +

    FT_ANGLE_PI

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
    #define FT_ANGLE_PI  ( 180L << 16 )
+
    + +

    The angle pi expressed in FT_Angle units.

    +
    + +

    FT_ANGLE_2PI

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
    #define FT_ANGLE_2PI  ( FT_ANGLE_PI * 2 )
+
    + +

    The angle 2*pi expressed in FT_Angle units.

    +
    + +

    FT_ANGLE_PI2

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
    #define FT_ANGLE_PI2  ( FT_ANGLE_PI / 2 )
+
    + +

    The angle pi/2 expressed in FT_Angle units.

    +
    + +

    FT_ANGLE_PI4

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
    #define FT_ANGLE_PI4  ( FT_ANGLE_PI / 4 )
+
    + +

    The angle pi/4 expressed in FT_Angle units.

    +
    + +

    FT_Sin

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( FT_Fixed )
+  FT_Sin( FT_Angle  angle );
+
    + +

    Return the sinus of a given angle in fixed-point format.

    +

    input

    + + +
    angle +

    The input angle.

    +
    + +

    return

    + +

    The sinus value.

    +

    note

    + +

    If you need both the sinus and cosinus for a given angle, use the function FT_Vector_Unit.

    +
    + +

    FT_Cos

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( FT_Fixed )
+  FT_Cos( FT_Angle  angle );
+
    + +

    Return the cosinus of a given angle in fixed-point format.

    +

    input

    + + +
    angle +

    The input angle.

    +
    + +

    return

    + +

    The cosinus value.

    +

    note

    + +

    If you need both the sinus and cosinus for a given angle, use the function FT_Vector_Unit.

    +
    + +

    FT_Tan

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( FT_Fixed )
+  FT_Tan( FT_Angle  angle );
+
    + +

    Return the tangent of a given angle in fixed-point format.

    +

    input

    + + +
    angle +

    The input angle.

    +
    + +

    return

    + +

    The tangent value.

    +
    + +

    FT_Atan2

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( FT_Angle )
+  FT_Atan2( FT_Fixed  x,
+            FT_Fixed  y );
+
    + +

    Return the arc-tangent corresponding to a given vector (x,y) in the 2d plane.

    +

    input

    + + + +
    x +

    The horizontal vector coordinate.

    +
    y +

    The vertical vector coordinate.

    +
    + +

    return

    + +

    The arc-tangent value (i.e. angle).

    +
    + +

    FT_Angle_Diff

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( FT_Angle )
+  FT_Angle_Diff( FT_Angle  angle1,
+                 FT_Angle  angle2 );
+
    + +

    Return the difference between two angles. The result is always constrained to the ]-PI..PI] interval.

    +

    input

    + + + +
    angle1 +

    First angle.

    +
    angle2 +

    Second angle.

    +
    + +

    return

    + +

    Constrained value of angle2-angle1.

    +
    + +

    FT_Vector_Unit

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( void )
+  FT_Vector_Unit( FT_Vector*  vec,
+                  FT_Angle    angle );
+
    + +

    Return the unit vector corresponding to a given angle. After the call, the value of vec.x will be cos(angle), and the value of vec.y will be sin(angle).

    +

    This function is useful to retrieve both the sinus and cosinus of a given angle quickly.

    +

    output

    + + +
    vec +

    The address of target vector.

    +
    + +

    input

    + + +
    angle +

    The input angle.

    +
    + +
    + +

    FT_Vector_Rotate

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( void )
+  FT_Vector_Rotate( FT_Vector*  vec,
+                    FT_Angle    angle );
+
    + +

    Rotate a vector by a given angle.

    +

    inout

    + + +
    vec +

    The address of target vector.

    +
    + +

    input

    + + +
    angle +

    The input angle.

    +
    + +
    + +

    FT_Vector_Length

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( FT_Fixed )
+  FT_Vector_Length( FT_Vector*  vec );
+
    + +

    Return the length of a given vector.

    +

    input

    + + +
    vec +

    The address of target vector.

    +
    + +

    return

    + +

    The vector length, expressed in the same units that the original vector coordinates.

    +
    + +

    FT_Vector_Polarize

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( void )
+  FT_Vector_Polarize( FT_Vector*  vec,
+                      FT_Fixed   *length,
+                      FT_Angle   *angle );
+
    + +

    Compute both the length and angle of a given vector.

    +

    input

    + + +
    vec +

    The address of source vector.

    +
    + +

    output

    + + + +
    length +

    The vector length.

    +
    angle +

    The vector angle.

    +
    + +
    + +

    FT_Vector_From_Polar

    +

    Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h).

    +
      FT_EXPORT( void )
+  FT_Vector_From_Polar( FT_Vector*  vec,
+                        FT_Fixed    length,
+                        FT_Angle    angle );
+
    + +

    Compute vector coordinates from a length and angle.

    +

    output

    + + +
    vec +

    The address of source vector.

    +
    + +

    input

    + + + +
    length +

    The vector length.

    +
    angle +

    The vector angle.

    +
    + +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-debugging_apis.html b/modules/freetype2/docs/reference/ft2-debugging_apis.html new file mode 100644 index 0000000000..ff16767780 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-debugging_apis.html @@ -0,0 +1,1527 @@ + + + + + + + + + + + + + + + + + + + + + External Debugging APIs - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + + +

    FreeType » Docs » Support API » External Debugging APIs

    +
    +

    External Debugging APIs

    +

    Synopsis

    +

    This section contains the declarations of public functions that enables fine control of what the FT_DEBUG_LOGGING macro outputs.

    +

    FT_Trace_Set_Level

    +
      FT_EXPORT( void )
+  FT_Trace_Set_Level( const char*  tracing_level );
+
    + +

    Change the levels of tracing components of FreeType at run time.

    +

    input

    + + +
    tracing_level +

    New tracing value.

    +
    + +

    example

    + +

    The following call makes FreeType trace everything but the ‘memory’ component. +

    FT_Trace_Set_Level( "any:7 memory:0" );
+

    +

    note

    + +

    This function does nothing if compilation option FT_DEBUG_LOGGING isn't set.

    +

    since

    + +

    2.11

    +
    + +

    FT_Trace_Set_Default_Level

    +
      FT_EXPORT( void )
+  FT_Trace_Set_Default_Level( void );
+
    + +

    Reset tracing value of FreeType's components to the default value (i.e., to the value of the FT2_DEBUG environment value or to NULL if FT2_DEBUG is not set).

    +

    note

    + +

    This function does nothing if compilation option FT_DEBUG_LOGGING isn't set.

    +

    since

    + +

    2.11

    +
    + +

    FT_Custom_Log_Handler

    +
      typedef void
+  (*FT_Custom_Log_Handler)( const char*  ft_component,
+                            const char*  fmt,
+                            va_list      args );
+
    + +

    A function typedef that is used to handle the logging of tracing and debug messages on a file system.

    +

    input

    + + + + +
    ft_component +

    The name of FT_COMPONENT from which the current debug or error message is produced.

    +
    fmt +

    Actual debug or tracing message.

    +
    args +

    Arguments of debug or tracing messages.

    +
    + +

    since

    + +

    2.11

    +
    + +

    FT_Set_Log_Handler

    +
      FT_EXPORT( void )
+  FT_Set_Log_Handler( FT_Custom_Log_Handler  handler );
+
    + +

    A function to set a custom log handler.

    +

    input

    + + +
    handler +

    New logging function.

    +
    + +

    note

    + +

    This function does nothing if compilation option FT_DEBUG_LOGGING isn't set.

    +

    since

    + +

    2.11

    +
    + +

    FT_Set_Default_Log_Handler

    +
      FT_EXPORT( void )
+  FT_Set_Default_Log_Handler( void );
+
    + +

    A function to undo the effect of FT_Set_Log_Handler, resetting the log handler to FreeType's built-in version.

    +

    note

    + +

    This function does nothing if compilation option FT_DEBUG_LOGGING isn't set.

    +

    since

    + +

    2.11

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-error_code_values.html b/modules/freetype2/docs/reference/ft2-error_code_values.html new file mode 100644 index 0000000000..61ef7cdb19 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-error_code_values.html @@ -0,0 +1,1599 @@ + + + + + + + + + + + + + + + + + + + + + Error Code Values - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Error Codes » Error Code Values

    +
    +

    Error Code Values

    +

    Synopsis

    +

    The list below is taken verbatim from the file fterrdef.h (loaded automatically by including FT_FREETYPE_H). The first argument of the FT_ERROR_DEF_ macro is the error label; by default, the prefix FT_Err_ gets added so that you get error names like FT_Err_Cannot_Open_Resource. The second argument is the error code, and the last argument an error string, which is not used by FreeType.

    +

    Within your application you should only use error names and never its numeric values! The latter might (and actually do) change in forthcoming FreeType versions.

    +

    Macro FT_NOERRORDEF_ defines FT_Err_Ok, which is always zero. See the ‘Error Enumerations’ subsection how to automatically generate a list of error strings.

    +

    FT_Err_XXX

    +
      /* generic errors */
+
+  FT_NOERRORDEF_( Ok,                                        0x00,
+                  "no error" )
+
+  FT_ERRORDEF_( Cannot_Open_Resource,                        0x01,
+                "cannot open resource" )
+  FT_ERRORDEF_( Unknown_File_Format,                         0x02,
+                "unknown file format" )
+  FT_ERRORDEF_( Invalid_File_Format,                         0x03,
+                "broken file" )
+  FT_ERRORDEF_( Invalid_Version,                             0x04,
+                "invalid FreeType version" )
+  FT_ERRORDEF_( Lower_Module_Version,                        0x05,
+                "module version is too low" )
+  FT_ERRORDEF_( Invalid_Argument,                            0x06,
+                "invalid argument" )
+  FT_ERRORDEF_( Unimplemented_Feature,                       0x07,
+                "unimplemented feature" )
+  FT_ERRORDEF_( Invalid_Table,                               0x08,
+                "broken table" )
+  FT_ERRORDEF_( Invalid_Offset,                              0x09,
+                "broken offset within table" )
+  FT_ERRORDEF_( Array_Too_Large,                             0x0A,
+                "array allocation size too large" )
+  FT_ERRORDEF_( Missing_Module,                              0x0B,
+                "missing module" )
+  FT_ERRORDEF_( Missing_Property,                            0x0C,
+                "missing property" )
+
+  /* glyph/character errors */
+
+  FT_ERRORDEF_( Invalid_Glyph_Index,                         0x10,
+                "invalid glyph index" )
+  FT_ERRORDEF_( Invalid_Character_Code,                      0x11,
+                "invalid character code" )
+  FT_ERRORDEF_( Invalid_Glyph_Format,                        0x12,
+                "unsupported glyph image format" )
+  FT_ERRORDEF_( Cannot_Render_Glyph,                         0x13,
+                "cannot render this glyph format" )
+  FT_ERRORDEF_( Invalid_Outline,                             0x14,
+                "invalid outline" )
+  FT_ERRORDEF_( Invalid_Composite,                           0x15,
+                "invalid composite glyph" )
+  FT_ERRORDEF_( Too_Many_Hints,                              0x16,
+                "too many hints" )
+  FT_ERRORDEF_( Invalid_Pixel_Size,                          0x17,
+                "invalid pixel size" )
+  FT_ERRORDEF_( Invalid_SVG_Document,                        0x18,
+                "invalid SVG document" )
+
+  /* handle errors */
+
+  FT_ERRORDEF_( Invalid_Handle,                              0x20,
+                "invalid object handle" )
+  FT_ERRORDEF_( Invalid_Library_Handle,                      0x21,
+                "invalid library handle" )
+  FT_ERRORDEF_( Invalid_Driver_Handle,                       0x22,
+                "invalid module handle" )
+  FT_ERRORDEF_( Invalid_Face_Handle,                         0x23,
+                "invalid face handle" )
+  FT_ERRORDEF_( Invalid_Size_Handle,                         0x24,
+                "invalid size handle" )
+  FT_ERRORDEF_( Invalid_Slot_Handle,                         0x25,
+                "invalid glyph slot handle" )
+  FT_ERRORDEF_( Invalid_CharMap_Handle,                      0x26,
+                "invalid charmap handle" )
+  FT_ERRORDEF_( Invalid_Cache_Handle,                        0x27,
+                "invalid cache manager handle" )
+  FT_ERRORDEF_( Invalid_Stream_Handle,                       0x28,
+                "invalid stream handle" )
+
+  /* driver errors */
+
+  FT_ERRORDEF_( Too_Many_Drivers,                            0x30,
+                "too many modules" )
+  FT_ERRORDEF_( Too_Many_Extensions,                         0x31,
+                "too many extensions" )
+
+  /* memory errors */
+
+  FT_ERRORDEF_( Out_Of_Memory,                               0x40,
+                "out of memory" )
+  FT_ERRORDEF_( Unlisted_Object,                             0x41,
+                "unlisted object" )
+
+  /* stream errors */
+
+  FT_ERRORDEF_( Cannot_Open_Stream,                          0x51,
+                "cannot open stream" )
+  FT_ERRORDEF_( Invalid_Stream_Seek,                         0x52,
+                "invalid stream seek" )
+  FT_ERRORDEF_( Invalid_Stream_Skip,                         0x53,
+                "invalid stream skip" )
+  FT_ERRORDEF_( Invalid_Stream_Read,                         0x54,
+                "invalid stream read" )
+  FT_ERRORDEF_( Invalid_Stream_Operation,                    0x55,
+                "invalid stream operation" )
+  FT_ERRORDEF_( Invalid_Frame_Operation,                     0x56,
+                "invalid frame operation" )
+  FT_ERRORDEF_( Nested_Frame_Access,                         0x57,
+                "nested frame access" )
+  FT_ERRORDEF_( Invalid_Frame_Read,                          0x58,
+                "invalid frame read" )
+
+  /* raster errors */
+
+  FT_ERRORDEF_( Raster_Uninitialized,                        0x60,
+                "raster uninitialized" )
+  FT_ERRORDEF_( Raster_Corrupted,                            0x61,
+                "raster corrupted" )
+  FT_ERRORDEF_( Raster_Overflow,                             0x62,
+                "raster overflow" )
+  FT_ERRORDEF_( Raster_Negative_Height,                      0x63,
+                "negative height while rastering" )
+
+  /* cache errors */
+
+  FT_ERRORDEF_( Too_Many_Caches,                             0x70,
+                "too many registered caches" )
+
+  /* TrueType and SFNT errors */
+
+  FT_ERRORDEF_( Invalid_Opcode,                              0x80,
+                "invalid opcode" )
+  FT_ERRORDEF_( Too_Few_Arguments,                           0x81,
+                "too few arguments" )
+  FT_ERRORDEF_( Stack_Overflow,                              0x82,
+                "stack overflow" )
+  FT_ERRORDEF_( Code_Overflow,                               0x83,
+                "code overflow" )
+  FT_ERRORDEF_( Bad_Argument,                                0x84,
+                "bad argument" )
+  FT_ERRORDEF_( Divide_By_Zero,                              0x85,
+                "division by zero" )
+  FT_ERRORDEF_( Invalid_Reference,                           0x86,
+                "invalid reference" )
+  FT_ERRORDEF_( Debug_OpCode,                                0x87,
+                "found debug opcode" )
+  FT_ERRORDEF_( ENDF_In_Exec_Stream,                         0x88,
+                "found ENDF opcode in execution stream" )
+  FT_ERRORDEF_( Nested_DEFS,                                 0x89,
+                "nested DEFS" )
+  FT_ERRORDEF_( Invalid_CodeRange,                           0x8A,
+                "invalid code range" )
+  FT_ERRORDEF_( Execution_Too_Long,                          0x8B,
+                "execution context too long" )
+  FT_ERRORDEF_( Too_Many_Function_Defs,                      0x8C,
+                "too many function definitions" )
+  FT_ERRORDEF_( Too_Many_Instruction_Defs,                   0x8D,
+                "too many instruction definitions" )
+  FT_ERRORDEF_( Table_Missing,                               0x8E,
+                "SFNT font table missing" )
+  FT_ERRORDEF_( Horiz_Header_Missing,                        0x8F,
+                "horizontal header (hhea) table missing" )
+  FT_ERRORDEF_( Locations_Missing,                           0x90,
+                "locations (loca) table missing" )
+  FT_ERRORDEF_( Name_Table_Missing,                          0x91,
+                "name table missing" )
+  FT_ERRORDEF_( CMap_Table_Missing,                          0x92,
+                "character map (cmap) table missing" )
+  FT_ERRORDEF_( Hmtx_Table_Missing,                          0x93,
+                "horizontal metrics (hmtx) table missing" )
+  FT_ERRORDEF_( Post_Table_Missing,                          0x94,
+                "PostScript (post) table missing" )
+  FT_ERRORDEF_( Invalid_Horiz_Metrics,                       0x95,
+                "invalid horizontal metrics" )
+  FT_ERRORDEF_( Invalid_CharMap_Format,                      0x96,
+                "invalid character map (cmap) format" )
+  FT_ERRORDEF_( Invalid_PPem,                                0x97,
+                "invalid ppem value" )
+  FT_ERRORDEF_( Invalid_Vert_Metrics,                        0x98,
+                "invalid vertical metrics" )
+  FT_ERRORDEF_( Could_Not_Find_Context,                      0x99,
+                "could not find context" )
+  FT_ERRORDEF_( Invalid_Post_Table_Format,                   0x9A,
+                "invalid PostScript (post) table format" )
+  FT_ERRORDEF_( Invalid_Post_Table,                          0x9B,
+                "invalid PostScript (post) table" )
+  FT_ERRORDEF_( DEF_In_Glyf_Bytecode,                        0x9C,
+                "found FDEF or IDEF opcode in glyf bytecode" )
+  FT_ERRORDEF_( Missing_Bitmap,                              0x9D,
+                "missing bitmap in strike" )
+  FT_ERRORDEF_( Missing_SVG_Hooks,                           0x9E,
+                "SVG hooks have not been set" )
+
+  /* CFF, CID, and Type 1 errors */
+
+  FT_ERRORDEF_( Syntax_Error,                                0xA0,
+                "opcode syntax error" )
+  FT_ERRORDEF_( Stack_Underflow,                             0xA1,
+                "argument stack underflow" )
+  FT_ERRORDEF_( Ignore,                                      0xA2,
+                "ignore" )
+  FT_ERRORDEF_( No_Unicode_Glyph_Name,                       0xA3,
+                "no Unicode glyph name found" )
+  FT_ERRORDEF_( Glyph_Too_Big,                               0xA4,
+                "glyph too big for hinting" )
+
+  /* BDF errors */
+
+  FT_ERRORDEF_( Missing_Startfont_Field,                     0xB0,
+                "`STARTFONT' field missing" )
+  FT_ERRORDEF_( Missing_Font_Field,                          0xB1,
+                "`FONT' field missing" )
+  FT_ERRORDEF_( Missing_Size_Field,                          0xB2,
+                "`SIZE' field missing" )
+  FT_ERRORDEF_( Missing_Fontboundingbox_Field,               0xB3,
+                "`FONTBOUNDINGBOX' field missing" )
+  FT_ERRORDEF_( Missing_Chars_Field,                         0xB4,
+                "`CHARS' field missing" )
+  FT_ERRORDEF_( Missing_Startchar_Field,                     0xB5,
+                "`STARTCHAR' field missing" )
+  FT_ERRORDEF_( Missing_Encoding_Field,                      0xB6,
+                "`ENCODING' field missing" )
+  FT_ERRORDEF_( Missing_Bbx_Field,                           0xB7,
+                "`BBX' field missing" )
+  FT_ERRORDEF_( Bbx_Too_Big,                                 0xB8,
+                "`BBX' too big" )
+  FT_ERRORDEF_( Corrupted_Font_Header,                       0xB9,
+                "Font header corrupted or missing fields" )
+  FT_ERRORDEF_( Corrupted_Font_Glyphs,                       0xBA,
+                "Font glyphs corrupted or missing fields" )
+
    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-error_enumerations.html b/modules/freetype2/docs/reference/ft2-error_enumerations.html new file mode 100644 index 0000000000..a30b8516d2 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-error_enumerations.html @@ -0,0 +1,1432 @@ + + + + + + + + + + + + + + + + + + + + + Error Enumerations - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Error Codes » Error Enumerations

    +
    +

    Error Enumerations

    +

    Synopsis

    +

    The header file fterrors.h (which is automatically included by freetype.h) defines the handling of FreeType's enumeration constants. It can also be used to generate error message strings with a small macro trick explained below.

    +

    Error Formats

    +

    The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be defined in ftoption.h in order to make the higher byte indicate the module where the error has happened (this is not compatible with standard builds of FreeType 2, however). See the file ftmoderr.h for more details.

    +

    Error Message Strings

    +

    Error definitions are set up with special macros that allow client applications to build a table of error message strings. The strings are not included in a normal build of FreeType 2 to save space (most client applications do not use them).

    +

    To do so, you have to define the following macros before including this file. +

      FT_ERROR_START_LIST
+

    +

    This macro is called before anything else to define the start of the error list. It is followed by several FT_ERROR_DEF calls. +

      FT_ERROR_DEF( e, v, s )
+

    +

    This macro is called to define one single error. ‘e’ is the error code identifier (e.g., Invalid_Argument), ‘v’ is the error's numerical value, and ‘s’ is the corresponding error string. +

      FT_ERROR_END_LIST
+

    +

    This macro ends the list.

    +

    Additionally, you have to undefine FTERRORS_H_ before #including this file.

    +

    Here is a simple example. +

      #undef FTERRORS_H_
+  #define FT_ERRORDEF( e, v, s )  { e, s },
+  #define FT_ERROR_START_LIST     {
+  #define FT_ERROR_END_LIST       { 0, NULL } };
+
+  const struct
+  {
+    int          err_code;
+    const char*  err_msg;
+  } ft_errors[] =
+
+  #include <freetype/fterrors.h>
+

    +

    An alternative to using an array is a switch statement. +

      #undef FTERRORS_H_
+  #define FT_ERROR_START_LIST     switch ( error_code ) {
+  #define FT_ERRORDEF( e, v, s )    case v: return s;
+  #define FT_ERROR_END_LIST       }
+

    +

    If you use FT_CONFIG_OPTION_USE_MODULE_ERRORS, error_code should be replaced with FT_ERROR_BASE(error_code) in the last example.

    +

    FT_Error_String

    +

    Defined in FT_ERRORS_H (freetype/fterrors.h).

    +
      FT_EXPORT( const char* )
+  FT_Error_String( FT_Error  error_code );
+
    + +

    Retrieve the description of a valid FreeType error code.

    +

    input

    + + +
    error_code +

    A valid FreeType error code.

    +
    + +

    return

    + +

    A C string or NULL, if any error occurred.

    +

    note

    + +

    FreeType has to be compiled with FT_CONFIG_OPTION_ERROR_STRINGS or FT_DEBUG_LEVEL_ERROR to get meaningful descriptions. ‘error_string’ will be NULL otherwise.

    +

    Module identification will be ignored: +

      strcmp( FT_Error_String(  FT_Err_Unknown_File_Format ),
+          FT_Error_String( BDF_Err_Unknown_File_Format ) ) == 0;
+

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-face_creation.html b/modules/freetype2/docs/reference/ft2-face_creation.html new file mode 100644 index 0000000000..0dd3ded8a0 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-face_creation.html @@ -0,0 +1,2355 @@ + + + + + + + + + + + + + + + + + + + + + Face Creation - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Core API » Face Creation

    +
    +

    Face Creation

    +

    Synopsis

    +

    The functions and structures collected in this section operate on fonts globally.

    +

    FT_Face

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_FaceRec_*  FT_Face;
+
    + +

    A handle to a typographic face object. A face object models a given typeface, in a given style.

    +

    note

    + +

    A face object also owns a single FT_GlyphSlot object, as well as one or more FT_Size objects.

    +

    Use FT_New_Face or FT_Open_Face to create a new face object from a given filepath or a custom input stream.

    +

    Use FT_Done_Face to destroy it (along with its slot and sizes).

    +

    An FT_Face object can only be safely used from one thread at a time. Similarly, creation and destruction of FT_Face with the same FT_Library object can only be done from one thread at a time. On the other hand, functions like FT_Load_Glyph and its siblings are thread-safe and do not need the lock to be held as long as the same FT_Face object is not used from multiple threads at the same time.

    +

    also

    + +

    See FT_FaceRec for the publicly accessible fields of a given face object.

    +
    + +

    FT_FaceRec

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_FaceRec_
+  {
+    FT_Long           num_faces;
+    FT_Long           face_index;
+
+    FT_Long           face_flags;
+    FT_Long           style_flags;
+
+    FT_Long           num_glyphs;
+
+    FT_String*        family_name;
+    FT_String*        style_name;
+
+    FT_Int            num_fixed_sizes;
+    FT_Bitmap_Size*   available_sizes;
+
+    FT_Int            num_charmaps;
+    FT_CharMap*       charmaps;
+
+    FT_Generic        generic;
+
+    /* The following member variables (down to `underline_thickness`) */
+    /* are only relevant to scalable outlines; cf. @FT_Bitmap_Size    */
+    /* for bitmap fonts.                                              */
+    FT_BBox           bbox;
+
+    FT_UShort         units_per_EM;
+    FT_Short          ascender;
+    FT_Short          descender;
+    FT_Short          height;
+
+    FT_Short          max_advance_width;
+    FT_Short          max_advance_height;
+
+    FT_Short          underline_position;
+    FT_Short          underline_thickness;
+
+    FT_GlyphSlot      glyph;
+    FT_Size           size;
+    FT_CharMap        charmap;
+
+    /* private fields, internal to FreeType */
+
+    FT_Driver         driver;
+    FT_Memory         memory;
+    FT_Stream         stream;
+
+    FT_ListRec        sizes_list;
+
+    FT_Generic        autohint;   /* face-specific auto-hinter data */
+    void*             extensions; /* unused                         */
+
+    FT_Face_Internal  internal;
+
+  } FT_FaceRec;
+
    + +

    FreeType root face class structure. A face object models a typeface in a font file.

    +

    fields

    + + + + + + + + + + + + + + + + + + + + + + + + + +
    num_faces +

    The number of faces in the font file. Some font formats can have multiple faces in a single font file.

    +
    face_index +

    This field holds two different values. Bits 0-15 are the index of the face in the font file (starting with value 0). They are set to 0 if there is only one face in the font file.

    +

    [Since 2.6.1] Bits 16-30 are relevant to GX and OpenType variation fonts only, holding the named instance index for the current face index (starting with value 1; value 0 indicates font access without a named instance). For non-variation fonts, bits 16-30 are ignored. If we have the third named instance of face 4, say, face_index is set to 0x00030004.

    +

    Bit 31 is always zero (that is, face_index is always a positive value).

    +

    [Since 2.9] Changing the design coordinates with FT_Set_Var_Design_Coordinates or FT_Set_Var_Blend_Coordinates does not influence the named instance index value (only FT_Set_Named_Instance does that).

    +
    face_flags +

    A set of bit flags that give important information about the face; see FT_FACE_FLAG_XXX for the details.

    +
    style_flags +

    The lower 16 bits contain a set of bit flags indicating the style of the face; see FT_STYLE_FLAG_XXX for the details.

    +

    [Since 2.6.1] Bits 16-30 hold the number of named instances available for the current face if we have a GX or OpenType variation (sub)font. Bit 31 is always zero (that is, style_flags is always a positive value). Note that a variation font has always at least one named instance, namely the default instance.

    +
    num_glyphs +

    The number of glyphs in the face. If the face is scalable and has sbits (see num_fixed_sizes), it is set to the number of outline glyphs.

    +

    For CID-keyed fonts (not in an SFNT wrapper) this value gives the highest CID used in the font.

    +
    family_name +

    The face's family name. This is an ASCII string, usually in English, that describes the typeface's family (like ‘Times New Roman’, ‘Bodoni’, ‘Garamond’, etc). This is a least common denominator used to list fonts. Some formats (TrueType & OpenType) provide localized and Unicode versions of this string. Applications should use the format-specific interface to access them. Can be NULL (e.g., in fonts embedded in a PDF file).

    +

    In case the font doesn't provide a specific family name entry, FreeType tries to synthesize one, deriving it from other name entries.

    +
    style_name +

    The face's style name. This is an ASCII string, usually in English, that describes the typeface's style (like ‘Italic’, ‘Bold’, ‘Condensed’, etc). Not all font formats provide a style name, so this field is optional, and can be set to NULL. As for family_name, some formats provide localized and Unicode versions of this string. Applications should use the format-specific interface to access them.

    +
    num_fixed_sizes +

    The number of bitmap strikes in the face. Even if the face is scalable, there might still be bitmap strikes, which are called ‘sbits’ in that case.

    +
    available_sizes +

    An array of FT_Bitmap_Size for all bitmap strikes in the face. It is set to NULL if there is no bitmap strike.

    +

    Note that FreeType tries to sanitize the strike data since they are sometimes sloppy or incorrect, but this can easily fail.

    +
    num_charmaps +

    The number of charmaps in the face.

    +
    charmaps +

    An array of the charmaps of the face.

    +
    generic +

    A field reserved for client uses. See the FT_Generic type description.

    +
    bbox +

    The font bounding box. Coordinates are expressed in font units (see units_per_EM). The box is large enough to contain any glyph from the font. Thus, bbox.yMax can be seen as the ‘maximum ascender’, and bbox.yMin as the ‘minimum descender’. Only relevant for scalable formats.

    +

    Note that the bounding box might be off by (at least) one pixel for hinted fonts. See FT_Size_Metrics for further discussion.

    +

    Note that the bounding box does not vary in OpenType variation fonts and should only be used in relation to the default instance.

    +
    units_per_EM +

    The number of font units per EM square for this face. This is typically 2048 for TrueType fonts, and 1000 for Type 1 fonts. Only relevant for scalable formats.

    +
    ascender +

    The typographic ascender of the face, expressed in font units. For font formats not having this information, it is set to bbox.yMax. Only relevant for scalable formats.

    +
    descender +

    The typographic descender of the face, expressed in font units. For font formats not having this information, it is set to bbox.yMin. Note that this field is negative for values below the baseline. Only relevant for scalable formats.

    +
    height +

    This value is the vertical distance between two consecutive baselines, expressed in font units. It is always positive. Only relevant for scalable formats.

    +

    If you want the global glyph height, use ascender - descender.

    +
    max_advance_width +

    The maximum advance width, in font units, for all glyphs in this face. This can be used to make word wrapping computations faster. Only relevant for scalable formats.

    +
    max_advance_height +

    The maximum advance height, in font units, for all glyphs in this face. This is only relevant for vertical layouts, and is set to height for fonts that do not provide vertical metrics. Only relevant for scalable formats.

    +
    underline_position +

    The position, in font units, of the underline line for this face. It is the center of the underlining stem. Only relevant for scalable formats.

    +
    underline_thickness +

    The thickness, in font units, of the underline for this face. Only relevant for scalable formats.

    +
    glyph +

    The face's associated glyph slot(s).

    +
    size +

    The current active size for this face.

    +
    charmap +

    The current active charmap for this face.

    +
    + +

    note

    + +

    Fields may be changed after a call to FT_Attach_File or FT_Attach_Stream.

    +

    For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an ‘MVAR’ table: ascender, descender, height, underline_position, and underline_thickness.

    +

    Especially for TrueType fonts see also the documentation for FT_Size_Metrics.

    +
    + +

    FT_FACE_FLAG_XXX

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_FACE_FLAG_SCALABLE          ( 1L <<  0 )
+#define FT_FACE_FLAG_FIXED_SIZES       ( 1L <<  1 )
+#define FT_FACE_FLAG_FIXED_WIDTH       ( 1L <<  2 )
+#define FT_FACE_FLAG_SFNT              ( 1L <<  3 )
+#define FT_FACE_FLAG_HORIZONTAL        ( 1L <<  4 )
+#define FT_FACE_FLAG_VERTICAL          ( 1L <<  5 )
+#define FT_FACE_FLAG_KERNING           ( 1L <<  6 )
+#define FT_FACE_FLAG_FAST_GLYPHS       ( 1L <<  7 )
+#define FT_FACE_FLAG_MULTIPLE_MASTERS  ( 1L <<  8 )
+#define FT_FACE_FLAG_GLYPH_NAMES       ( 1L <<  9 )
+#define FT_FACE_FLAG_EXTERNAL_STREAM   ( 1L << 10 )
+#define FT_FACE_FLAG_HINTER            ( 1L << 11 )
+#define FT_FACE_FLAG_CID_KEYED         ( 1L << 12 )
+#define FT_FACE_FLAG_TRICKY            ( 1L << 13 )
+#define FT_FACE_FLAG_COLOR             ( 1L << 14 )
+#define FT_FACE_FLAG_VARIATION         ( 1L << 15 )
+#define FT_FACE_FLAG_SVG               ( 1L << 16 )
+#define FT_FACE_FLAG_SBIX              ( 1L << 17 )
+#define FT_FACE_FLAG_SBIX_OVERLAY      ( 1L << 18 )
+
    + +

    A list of bit flags used in the face_flags field of the FT_FaceRec structure. They inform client applications of properties of the corresponding face.

    +

    values

    + + + + + + + + + + + + + + + + + + + + +
    FT_FACE_FLAG_SCALABLE +

    The face contains outline glyphs. Note that a face can contain bitmap strikes also, i.e., a face can have both this flag and FT_FACE_FLAG_FIXED_SIZES set.

    +
    FT_FACE_FLAG_FIXED_SIZES +

    The face contains bitmap strikes. See also the num_fixed_sizes and available_sizes fields of FT_FaceRec.

    +
    FT_FACE_FLAG_FIXED_WIDTH +

    The face contains fixed-width characters (like Courier, Lucida, MonoType, etc.).

    +
    FT_FACE_FLAG_SFNT +

    The face uses the SFNT storage scheme. For now, this means TrueType and OpenType.

    +
    FT_FACE_FLAG_HORIZONTAL +

    The face contains horizontal glyph metrics. This should be set for all common formats.

    +
    FT_FACE_FLAG_VERTICAL +

    The face contains vertical glyph metrics. This is only available in some formats, not all of them.

    +
    FT_FACE_FLAG_KERNING +

    The face contains kerning information. If set, the kerning distance can be retrieved using the function FT_Get_Kerning. Otherwise the function always returns the vector (0,0). Note that FreeType doesn't handle kerning data from the SFNT ‘GPOS’ table (as present in many OpenType fonts).

    +
    FT_FACE_FLAG_FAST_GLYPHS +

    THIS FLAG IS DEPRECATED. DO NOT USE OR TEST IT.

    +
    FT_FACE_FLAG_MULTIPLE_MASTERS +

    The face contains multiple masters and is capable of interpolating between them. Supported formats are Adobe MM, TrueType GX, and OpenType variation fonts.

    +

    See section ‘Multiple Masters’ for API details.

    +
    FT_FACE_FLAG_GLYPH_NAMES +

    The face contains glyph names, which can be retrieved using FT_Get_Glyph_Name. Note that some TrueType fonts contain broken glyph name tables. Use the function FT_Has_PS_Glyph_Names when needed.

    +
    FT_FACE_FLAG_EXTERNAL_STREAM +

    Used internally by FreeType to indicate that a face's stream was provided by the client application and should not be destroyed when FT_Done_Face is called. Don't read or test this flag.

    +
    FT_FACE_FLAG_HINTER +

    The font driver has a hinting machine of its own. For example, with TrueType fonts, it makes sense to use data from the SFNT ‘gasp’ table only if the native TrueType hinting engine (with the bytecode interpreter) is available and active.

    +
    FT_FACE_FLAG_CID_KEYED +

    The face is CID-keyed. In that case, the face is not accessed by glyph indices but by CID values. For subsetted CID-keyed fonts this has the consequence that not all index values are a valid argument to FT_Load_Glyph. Only the CID values for which corresponding glyphs in the subsetted font exist make FT_Load_Glyph return successfully; in all other cases you get an FT_Err_Invalid_Argument error.

    +

    Note that CID-keyed fonts that are in an SFNT wrapper (that is, all OpenType/CFF fonts) don't have this flag set since the glyphs are accessed in the normal way (using contiguous indices); the ‘CID-ness’ isn't visible to the application.

    +
    FT_FACE_FLAG_TRICKY +

    The face is ‘tricky’, that is, it always needs the font format's native hinting engine to get a reasonable result. A typical example is the old Chinese font mingli.ttf (but not mingliu.ttc) that uses TrueType bytecode instructions to move and scale all of its subglyphs.

    +

    It is not possible to auto-hint such fonts using FT_LOAD_FORCE_AUTOHINT; it will also ignore FT_LOAD_NO_HINTING. You have to set both FT_LOAD_NO_HINTING and FT_LOAD_NO_AUTOHINT to really disable hinting; however, you probably never want this except for demonstration purposes.

    +

    Currently, there are about a dozen TrueType fonts in the list of tricky fonts; they are hard-coded in file ttobjs.c.

    +
    FT_FACE_FLAG_COLOR +

    [Since 2.5.1] The face has color glyph tables. See FT_LOAD_COLOR for more information.

    +
    FT_FACE_FLAG_VARIATION +

    [Since 2.9] Set if the current face (or named instance) has been altered with FT_Set_MM_Design_Coordinates, FT_Set_Var_Design_Coordinates, FT_Set_Var_Blend_Coordinates, or FT_Set_MM_WeightVector to select a non-default instance.

    +
    FT_FACE_FLAG_SVG +

    [Since 2.12] The face has an ‘SVG ’ OpenType table.

    +
    FT_FACE_FLAG_SBIX +

    [Since 2.12] The face has an ‘sbix’ OpenType table and outlines. For such fonts, FT_FACE_FLAG_SCALABLE is not set by default to retain backward compatibility.

    +
    FT_FACE_FLAG_SBIX_OVERLAY +

    [Since 2.12] The face has an ‘sbix’ OpenType table where outlines should be drawn on top of bitmap strikes.

    +
    + +
    + +

    FT_STYLE_FLAG_XXX

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_STYLE_FLAG_ITALIC  ( 1 << 0 )
+#define FT_STYLE_FLAG_BOLD    ( 1 << 1 )
+
    + +

    A list of bit flags to indicate the style of a given face. These are used in the style_flags field of FT_FaceRec.

    +

    values

    + + + +
    FT_STYLE_FLAG_ITALIC +

    The face style is italic or oblique.

    +
    FT_STYLE_FLAG_BOLD +

    The face is bold.

    +
    + +

    note

    + +

    The style information as provided by FreeType is very basic. More details are beyond the scope and should be done on a higher level (for example, by analyzing various fields of the ‘OS/2’ table in SFNT based fonts).

    +
    + +

    FT_New_Face

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_New_Face( FT_Library   library,
+               const char*  filepathname,
+               FT_Long      face_index,
+               FT_Face     *aface );
+
    + +

    Call FT_Open_Face to open a font by its pathname.

    +

    inout

    + + +
    library +

    A handle to the library resource.

    +
    + +

    input

    + + + +
    pathname +

    A path to the font file.

    +
    face_index +

    See FT_Open_Face for a detailed description of this parameter.

    +
    + +

    output

    + + +
    aface +

    A handle to a new face object. If face_index is greater than or equal to zero, it must be non-NULL.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The pathname string should be recognizable as such by a standard fopen call on your system; in particular, this means that pathname must not contain null bytes. If that is not sufficient to address all file name possibilities (for example, to handle wide character file names on Windows in UTF-16 encoding) you might use FT_Open_Face to pass a memory array or a stream object instead.

    +

    Use FT_Done_Face to destroy the created FT_Face object (along with its slot and sizes).

    +
    + +

    FT_Done_Face

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Done_Face( FT_Face  face );
+
    + +

    Discard a given face object, as well as all of its child slots and sizes.

    +

    input

    + + +
    face +

    A handle to a target face object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    See the discussion of reference counters in the description of FT_Reference_Face.

    +
    + +

    FT_Reference_Face

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Reference_Face( FT_Face  face );
+
    + +

    A counter gets initialized to 1 at the time an FT_Face structure is created. This function increments the counter. FT_Done_Face then only destroys a face if the counter is 1, otherwise it simply decrements the counter.

    +

    This function helps in managing life-cycles of structures that reference FT_Face objects.

    +

    input

    + + +
    face +

    A handle to a target face object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    since

    + +

    2.4.2

    +
    + +

    FT_New_Memory_Face

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_New_Memory_Face( FT_Library      library,
+                      const FT_Byte*  file_base,
+                      FT_Long         file_size,
+                      FT_Long         face_index,
+                      FT_Face        *aface );
+
    + +

    Call FT_Open_Face to open a font that has been loaded into memory.

    +

    inout

    + + +
    library +

    A handle to the library resource.

    +
    + +

    input

    + + + + +
    file_base +

    A pointer to the beginning of the font data.

    +
    file_size +

    The size of the memory chunk used by the font data.

    +
    face_index +

    See FT_Open_Face for a detailed description of this parameter.

    +
    + +

    output

    + + +
    aface +

    A handle to a new face object. If face_index is greater than or equal to zero, it must be non-NULL.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    You must not deallocate the memory before calling FT_Done_Face.

    +
    + +

    FT_Face_Properties

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Face_Properties( FT_Face        face,
+                      FT_UInt        num_properties,
+                      FT_Parameter*  properties );
+
    + +

    Set or override certain (library or module-wide) properties on a face-by-face basis. Useful for finer-grained control and avoiding locks on shared structures (threads can modify their own faces as they see fit).

    +

    Contrary to FT_Property_Set, this function uses FT_Parameter so that you can pass multiple properties to the target face in one call. Note that only a subset of the available properties can be controlled.

    + +

    Pass NULL as data in FT_Parameter for a given tag to reset the option and use the library or module default again.

    +

    input

    + + + + +
    face +

    A handle to the source face object.

    +
    num_properties +

    The number of properties that follow.

    +
    properties +

    A handle to an FT_Parameter array with num_properties elements.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    example

    + +

    Here is an example that sets three properties. You must define FT_CONFIG_OPTION_SUBPIXEL_RENDERING to make the LCD filter examples work. +

      FT_Parameter         property1;
+  FT_Bool              darken_stems = 1;
+
+  FT_Parameter         property2;
+  FT_LcdFiveTapFilter  custom_weight =
+                         { 0x11, 0x44, 0x56, 0x44, 0x11 };
+
+  FT_Parameter         property3;
+  FT_Int32             random_seed = 314159265;
+
+  FT_Parameter         properties[3] = { property1,
+                                         property2,
+                                         property3 };
+
+
+  property1.tag  = FT_PARAM_TAG_STEM_DARKENING;
+  property1.data = &darken_stems;
+
+  property2.tag  = FT_PARAM_TAG_LCD_FILTER_WEIGHTS;
+  property2.data = custom_weight;
+
+  property3.tag  = FT_PARAM_TAG_RANDOM_SEED;
+  property3.data = &random_seed;
+
+  FT_Face_Properties( face, 3, properties );
+

    +

    The next example resets a single property to its default value. +

      FT_Parameter  property;
+
+
+  property.tag  = FT_PARAM_TAG_LCD_FILTER_WEIGHTS;
+  property.data = NULL;
+
+  FT_Face_Properties( face, 1, &property );
+

    +

    since

    + +

    2.8

    +
    + +

    FT_Open_Face

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Open_Face( FT_Library           library,
+                const FT_Open_Args*  args,
+                FT_Long              face_index,
+                FT_Face             *aface );
+
    + +

    Create a face object from a given resource described by FT_Open_Args.

    +

    inout

    + + +
    library +

    A handle to the library resource.

    +
    + +

    input

    + + + +
    args +

    A pointer to an FT_Open_Args structure that must be filled by the caller.

    +
    face_index +

    This field holds two different values. Bits 0-15 are the index of the face in the font file (starting with value 0). Set it to 0 if there is only one face in the font file.

    +

    [Since 2.6.1] Bits 16-30 are relevant to GX and OpenType variation fonts only, specifying the named instance index for the current face index (starting with value 1; value 0 makes FreeType ignore named instances). For non-variation fonts, bits 16-30 are ignored. Assuming that you want to access the third named instance in face 4, face_index should be set to 0x00030004. If you want to access face 4 without variation handling, simply set face_index to value 4.

    +

    FT_Open_Face and its siblings can be used to quickly check whether the font format of a given font resource is supported by FreeType. In general, if the face_index argument is negative, the function's return value is 0 if the font format is recognized, or non-zero otherwise. The function allocates a more or less empty face handle in *aface (if aface isn't NULL); the only two useful fields in this special case are face->num_faces and face->style_flags. For any negative value of face_index, face->num_faces gives the number of faces within the font file. For the negative value ‘-(N+1)’ (with ‘N’ a non-negative 16-bit value), bits 16-30 in face->style_flags give the number of named instances in face ‘N’ if we have a variation font (or zero otherwise). After examination, the returned FT_Face structure should be deallocated with a call to FT_Done_Face.

    +
    + +

    output

    + + +
    aface +

    A handle to a new face object. If face_index is greater than or equal to zero, it must be non-NULL.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Unlike FreeType 1.x, this function automatically creates a glyph slot for the face object that can be accessed directly through face->glyph.

    +

    Each new face object created with this function also owns a default FT_Size object, accessible as face->size.

    +

    One FT_Library instance can have multiple face objects, that is, FT_Open_Face and its siblings can be called multiple times using the same library argument.

    +

    See the discussion of reference counters in the description of FT_Reference_Face.

    +

    If FT_OPEN_STREAM is set in args->flags, the stream in args->stream is automatically closed before this function returns any error (including FT_Err_Invalid_Argument).

    +

    example

    + +

    To loop over all faces, use code similar to the following snippet (omitting the error handling). +

      ...
+  FT_Face  face;
+  FT_Long  i, num_faces;
+
+
+  error = FT_Open_Face( library, args, -1, &face );
+  if ( error ) { ... }
+
+  num_faces = face->num_faces;
+  FT_Done_Face( face );
+
+  for ( i = 0; i < num_faces; i++ )
+  {
+    ...
+    error = FT_Open_Face( library, args, i, &face );
+    ...
+    FT_Done_Face( face );
+    ...
+  }
+

    +

    To loop over all valid values for face_index, use something similar to the following snippet, again without error handling. The code accesses all faces immediately (thus only a single call of FT_Open_Face within the do-loop), with and without named instances. +

      ...
+  FT_Face  face;
+
+  FT_Long  num_faces     = 0;
+  FT_Long  num_instances = 0;
+
+  FT_Long  face_idx     = 0;
+  FT_Long  instance_idx = 0;
+
+
+  do
+  {
+    FT_Long  id = ( instance_idx << 16 ) + face_idx;
+
+
+    error = FT_Open_Face( library, args, id, &face );
+    if ( error ) { ... }
+
+    num_faces     = face->num_faces;
+    num_instances = face->style_flags >> 16;
+
+    ...
+
+    FT_Done_Face( face );
+
+    if ( instance_idx < num_instances )
+      instance_idx++;
+    else
+    {
+      face_idx++;
+      instance_idx = 0;
+    }
+
+  } while ( face_idx < num_faces )
+

    +
    + +

    FT_Open_Args

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_Open_Args_
+  {
+    FT_UInt         flags;
+    const FT_Byte*  memory_base;
+    FT_Long         memory_size;
+    FT_String*      pathname;
+    FT_Stream       stream;
+    FT_Module       driver;
+    FT_Int          num_params;
+    FT_Parameter*   params;
+
+  } FT_Open_Args;
+
    + +

    A structure to indicate how to open a new font file or stream. A pointer to such a structure can be used as a parameter for the functions FT_Open_Face and FT_Attach_Stream.

    +

    fields

    + + + + + + + + + +
    flags +

    A set of bit flags indicating how to use the structure.

    +
    memory_base +

    The first byte of the file in memory.

    +
    memory_size +

    The size in bytes of the file in memory.

    +
    pathname +

    A pointer to an 8-bit file pathname, which must be a C string (i.e., no null bytes except at the very end). The pointer is not owned by FreeType.

    +
    stream +

    A handle to a source stream object.

    +
    driver +

    This field is exclusively used by FT_Open_Face; it simply specifies the font driver to use for opening the face. If set to NULL, FreeType tries to load the face with each one of the drivers in its list.

    +
    num_params +

    The number of extra parameters.

    +
    params +

    Extra parameters passed to the font driver when opening a new face.

    +
    + +

    note

    + +

    The stream type is determined by the contents of flags:

    +

    If the FT_OPEN_MEMORY bit is set, assume that this is a memory file of memory_size bytes, located at memory_address. The data are not copied, and the client is responsible for releasing and destroying them after the corresponding call to FT_Done_Face.

    +

    Otherwise, if the FT_OPEN_STREAM bit is set, assume that a custom input stream stream is used.

    +

    Otherwise, if the FT_OPEN_PATHNAME bit is set, assume that this is a normal file and use pathname to open it.

    +

    If none of the above bits are set or if multiple are set at the same time, the flags are invalid and FT_Open_Face fails.

    +

    If the FT_OPEN_DRIVER bit is set, FT_Open_Face only tries to open the file with the driver whose handler is in driver.

    +

    If the FT_OPEN_PARAMS bit is set, the parameters given by num_params and params is used. They are ignored otherwise.

    +

    Ideally, both the pathname and params fields should be tagged as ‘const’; this is missing for API backward compatibility. In other words, applications should treat them as read-only.

    +
    + +

    FT_OPEN_XXX

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_OPEN_MEMORY    0x1
+#define FT_OPEN_STREAM    0x2
+#define FT_OPEN_PATHNAME  0x4
+#define FT_OPEN_DRIVER    0x8
+#define FT_OPEN_PARAMS    0x10
+
+
+  /* these constants are deprecated; use the corresponding `FT_OPEN_XXX` */
+  /* values instead                                                      */
+#define ft_open_memory    FT_OPEN_MEMORY
+#define ft_open_stream    FT_OPEN_STREAM
+#define ft_open_pathname  FT_OPEN_PATHNAME
+#define ft_open_driver    FT_OPEN_DRIVER
+#define ft_open_params    FT_OPEN_PARAMS
+
    + +

    A list of bit field constants used within the flags field of the FT_Open_Args structure.

    +

    values

    + + + + + + +
    FT_OPEN_MEMORY +

    This is a memory-based stream.

    +
    FT_OPEN_STREAM +

    Copy the stream from the stream field.

    +
    FT_OPEN_PATHNAME +

    Create a new input stream from a C path name.

    +
    FT_OPEN_DRIVER +

    Use the driver field.

    +
    FT_OPEN_PARAMS +

    Use the num_params and params fields.

    +
    + +

    note

    + +

    The FT_OPEN_MEMORY, FT_OPEN_STREAM, and FT_OPEN_PATHNAME flags are mutually exclusive.

    +
    + +

    FT_Parameter

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_Parameter_
+  {
+    FT_ULong    tag;
+    FT_Pointer  data;
+
+  } FT_Parameter;
+
    + +

    A simple structure to pass more or less generic parameters to FT_Open_Face and FT_Face_Properties.

    +

    fields

    + + + +
    tag +

    A four-byte identification tag.

    +
    data +

    A pointer to the parameter data.

    +
    + +

    note

    + +

    The ID and function of parameters are driver-specific. See section ‘Parameter Tags’ for more information.

    +
    + +

    FT_Attach_File

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Attach_File( FT_Face      face,
+                  const char*  filepathname );
+
    + +

    Call FT_Attach_Stream to attach a file.

    +

    inout

    + + +
    face +

    The target face object.

    +
    + +

    input

    + + +
    filepathname +

    The pathname.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Attach_Stream

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Attach_Stream( FT_Face              face,
+                    const FT_Open_Args*  parameters );
+
    + +

    ‘Attach’ data to a face object. Normally, this is used to read additional information for the face object. For example, you can attach an AFM file that comes with a Type 1 font to get the kerning values and other metrics.

    +

    inout

    + + +
    face +

    The target face object.

    +
    + +

    input

    + + +
    parameters +

    A pointer to FT_Open_Args that must be filled by the caller.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The meaning of the ‘attach’ (i.e., what really happens when the new file is read) is not fixed by FreeType itself. It really depends on the font format (and thus the font driver).

    +

    Client applications are expected to know what they are doing when invoking this function. Most drivers simply do not implement file or stream attachments.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-font_formats.html b/modules/freetype2/docs/reference/ft2-font_formats.html new file mode 100644 index 0000000000..371ed96a85 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-font_formats.html @@ -0,0 +1,1398 @@ + + + + + + + + + + + + + + + + + + + + + Font Formats - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
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    +
    + + + +
    +
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    + + +
    +
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    + + +
    +
    + + + +

    FreeType » Docs » Format-Specific API » Font Formats

    +
    +

    Font Formats

    +

    Synopsis

    +

    The single function in this section can be used to get the font format. Note that this information is not needed normally; however, there are special cases (like in PDF devices) where it is important to differentiate, in spite of FreeType's uniform API.

    +

    FT_Get_Font_Format

    +

    Defined in FT_FONT_FORMATS_H (freetype/ftfntfmt.h).

    +
      FT_EXPORT( const char* )
+  FT_Get_Font_Format( FT_Face  face );
+
+
+  /* deprecated */
+  FT_EXPORT( const char* )
+  FT_Get_X11_Font_Format( FT_Face  face );
+
    + +

    Return a string describing the format of a given face. Possible values are ‘TrueType’, ‘Type 1’, ‘BDF’, ‘PCF’, ‘Type 42’, ‘CID Type 1’, ‘CFF’, ‘PFR’, and ‘Windows FNT’.

    +

    The return value is suitable to be used as an X11 FONT_PROPERTY.

    +

    input

    + + +
    face +

    Input face handle.

    +
    + +

    return

    + +

    Font format string. NULL in case of error.

    +

    note

    + +

    A deprecated name for the same function is FT_Get_X11_Font_Format.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-font_testing_macros.html b/modules/freetype2/docs/reference/ft2-font_testing_macros.html new file mode 100644 index 0000000000..b287330d26 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-font_testing_macros.html @@ -0,0 +1,1823 @@ + + + + + + + + + + + + + + + + + + + + + Font Testing Macros - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
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    FreeType » Docs » Core API » Font Testing Macros

    +
    +

    Font Testing Macros

    +

    Synopsis

    +

    Macros to test the most important font properties.

    +

    It is recommended to use these high-level macros instead of directly testing the corresponding flags, which are scattered over various structures.

    +

    FT_HAS_HORIZONTAL

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_HORIZONTAL( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_HORIZONTAL ) )
+
    + +

    A macro that returns true whenever a face object contains horizontal metrics (this is true for all font formats though).

    +

    also

    + +

    FT_HAS_VERTICAL can be used to check for vertical metrics.

    +
    + +

    FT_HAS_VERTICAL

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_VERTICAL( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_VERTICAL ) )
+
    + +

    A macro that returns true whenever a face object contains real vertical metrics (and not only synthesized ones).

    +
    + +

    FT_HAS_KERNING

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_KERNING( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_KERNING ) )
+
    + +

    A macro that returns true whenever a face object contains kerning data that can be accessed with FT_Get_Kerning.

    +
    + +

    FT_HAS_FIXED_SIZES

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_FIXED_SIZES( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_FIXED_SIZES ) )
+
    + +

    A macro that returns true whenever a face object contains some embedded bitmaps. See the available_sizes field of the FT_FaceRec structure.

    +
    + +

    FT_HAS_GLYPH_NAMES

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_GLYPH_NAMES( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) )
+
    + +

    A macro that returns true whenever a face object contains some glyph names that can be accessed through FT_Get_Glyph_Name.

    +
    + +

    FT_HAS_COLOR

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_COLOR( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_COLOR ) )
+
    + +

    A macro that returns true whenever a face object contains tables for color glyphs.

    +

    since

    + +

    2.5.1

    +
    + +

    FT_HAS_MULTIPLE_MASTERS

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_MULTIPLE_MASTERS( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS ) )
+
    + +

    A macro that returns true whenever a face object contains some multiple masters. The functions provided by FT_MULTIPLE_MASTERS_H are then available to choose the exact design you want.

    +
    + +

    FT_HAS_SVG

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_SVG( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_SVG ) )
+
    + +

    A macro that returns true whenever a face object contains an ‘SVG ’ OpenType table.

    +

    since

    + +

    2.12

    +
    + +

    FT_HAS_SBIX

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_SBIX( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_SBIX ) )
+
    + +

    A macro that returns true whenever a face object contains an ‘sbix’ OpenType table and outline glyphs.

    +

    Currently, FreeType only supports bitmap glyphs in PNG format for this table (i.e., JPEG and TIFF formats are unsupported, as are Apple-specific formats not part of the OpenType specification).

    +

    note

    + +

    For backward compatibility, a font with an ‘sbix’ table is treated as a bitmap-only face. Using FT_Open_Face with FT_PARAM_TAG_IGNORE_SBIX, an application can switch off ‘sbix’ handling so that the face is treated as an ordinary outline font with scalable outlines.

    +

    Here is some pseudo code that roughly illustrates how to implement ‘sbix’ handling according to the OpenType specification. +

      if ( FT_HAS_SBIX( face ) )
+  {
+    // open font as a scalable one without sbix handling
+    FT_Face       face2;
+    FT_Parameter  param = { FT_PARAM_TAG_IGNORE_SBIX, NULL };
+    FT_Open_Args  args  = { FT_OPEN_PARAMS | ...,
+                            ...,
+                            1, &param };
+
+
+    FT_Open_Face( library, &args, 0, &face2 );
+
+    <sort `face->available_size` as necessary into
+     `preferred_sizes`[*]>
+
+    for ( i = 0; i < face->num_fixed_sizes; i++ )
+    {
+      size = preferred_sizes[i].size;
+
+      error = FT_Set_Pixel_Sizes( face, size, size );
+      <error handling omitted>
+
+      // check whether we have a glyph in a bitmap strike
+      error = FT_Load_Glyph( face,
+                             glyph_index,
+                             FT_LOAD_SBITS_ONLY          |
+                             FT_LOAD_BITMAP_METRICS_ONLY );
+      if ( error == FT_Err_Invalid_Argument )
+        continue;
+      else if ( error )
+        <other error handling omitted>
+      else
+        break;
+    }
+
+    if ( i != face->num_fixed_sizes )
+      <load embedded bitmap with `FT_Load_Glyph`,
+       scale it, display it, etc.>
+
+    if ( i == face->num_fixed_sizes  ||
+         FT_HAS_SBIX_OVERLAY( face ) )
+      <use `face2` to load outline glyph with `FT_Load_Glyph`,
+       scale it, display it on top of the bitmap, etc.>
+  }
+

    +

    [*] Assuming a target value of 400dpi and available strike sizes 100, 200, 300, and 400dpi, a possible order might be [400, 200, 300, 100]: scaling 200dpi to 400dpi usually gives better results than scaling 300dpi to 400dpi; it is also much faster. However, scaling 100dpi to 400dpi can yield a too pixelated result, thus the preference might be 300dpi over 100dpi.

    +

    since

    + +

    2.12

    +
    + +

    FT_HAS_SBIX_OVERLAY

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_SBIX_OVERLAY( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_SBIX_OVERLAY ) )
+
    + +

    A macro that returns true whenever a face object contains an ‘sbix’ OpenType table with bit 1 in its flags field set, instructing the application to overlay the bitmap strike with the corresponding outline glyph. See FT_HAS_SBIX for pseudo code how to use it.

    +

    since

    + +

    2.12

    +
    + +

    FT_IS_SFNT

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_IS_SFNT( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_SFNT ) )
+
    + +

    A macro that returns true whenever a face object contains a font whose format is based on the SFNT storage scheme. This usually means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded bitmap fonts.

    +

    If this macro is true, all functions defined in FT_SFNT_NAMES_H and FT_TRUETYPE_TABLES_H are available.

    +
    + +

    FT_IS_SCALABLE

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_IS_SCALABLE( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_SCALABLE ) )
+
    + +

    A macro that returns true whenever a face object contains a scalable font face (true for TrueType, Type 1, Type 42, CID, OpenType/CFF, and PFR font formats).

    +
    + +

    FT_IS_FIXED_WIDTH

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_IS_FIXED_WIDTH( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_FIXED_WIDTH ) )
+
    + +

    A macro that returns true whenever a face object contains a font face that contains fixed-width (or ‘monospace’, ‘fixed-pitch’, etc.) glyphs.

    +
    + +

    FT_IS_CID_KEYED

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_IS_CID_KEYED( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_CID_KEYED ) )
+
    + +

    A macro that returns true whenever a face object contains a CID-keyed font. See the discussion of FT_FACE_FLAG_CID_KEYED for more details.

    +

    If this macro is true, all functions defined in FT_CID_H are available.

    +
    + +

    FT_IS_TRICKY

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_IS_TRICKY( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_TRICKY ) )
+
    + +

    A macro that returns true whenever a face represents a ‘tricky’ font. See the discussion of FT_FACE_FLAG_TRICKY for more details.

    +
    + +

    FT_IS_NAMED_INSTANCE

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_IS_NAMED_INSTANCE( face ) \
+          ( !!( (face)->face_index & 0x7FFF0000L ) )
+
    + +

    A macro that returns true whenever a face object is a named instance of a GX or OpenType variation font.

    +

    [Since 2.9] Changing the design coordinates with FT_Set_Var_Design_Coordinates or FT_Set_Var_Blend_Coordinates does not influence the return value of this macro (only FT_Set_Named_Instance does that).

    +

    since

    + +

    2.7

    +
    + +

    FT_IS_VARIATION

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_IS_VARIATION( face ) \
+          ( !!( (face)->face_flags & FT_FACE_FLAG_VARIATION ) )
+
    + +

    A macro that returns true whenever a face object has been altered by FT_Set_MM_Design_Coordinates, FT_Set_Var_Design_Coordinates, FT_Set_Var_Blend_Coordinates, or FT_Set_MM_WeightVector.

    +

    since

    + +

    2.9

    +
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    + + + + +
    +
    +
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    FreeType » Docs » Format-Specific API » Gasp Table

    +
    +

    Gasp Table

    +

    Synopsis

    +

    The function FT_Get_Gasp can be used to query a TrueType or OpenType font for specific entries in its ‘gasp’ table, if any. This is mainly useful when implementing native TrueType hinting with the bytecode interpreter to duplicate the Windows text rendering results.

    +

    FT_GASP_XXX

    +

    Defined in FT_GASP_H (freetype/ftgasp.h).

    +
    #define FT_GASP_NO_TABLE               -1
+#define FT_GASP_DO_GRIDFIT           0x01
+#define FT_GASP_DO_GRAY              0x02
+#define FT_GASP_SYMMETRIC_GRIDFIT    0x04
+#define FT_GASP_SYMMETRIC_SMOOTHING  0x08
+
    + +

    A list of values and/or bit-flags returned by the FT_Get_Gasp function.

    +

    values

    + + + + + + +
    FT_GASP_NO_TABLE +

    This special value means that there is no GASP table in this face. It is up to the client to decide what to do.

    +
    FT_GASP_DO_GRIDFIT +

    Grid-fitting and hinting should be performed at the specified ppem. This really means TrueType bytecode interpretation. If this bit is not set, no hinting gets applied.

    +
    FT_GASP_DO_GRAY +

    Anti-aliased rendering should be performed at the specified ppem. If not set, do monochrome rendering.

    +
    FT_GASP_SYMMETRIC_SMOOTHING +

    If set, smoothing along multiple axes must be used with ClearType.

    +
    FT_GASP_SYMMETRIC_GRIDFIT +

    Grid-fitting must be used with ClearType's symmetric smoothing.

    +
    + +

    note

    + +

    The bit-flags FT_GASP_DO_GRIDFIT and FT_GASP_DO_GRAY are to be used for standard font rasterization only. Independently of that, FT_GASP_SYMMETRIC_SMOOTHING and FT_GASP_SYMMETRIC_GRIDFIT are to be used if ClearType is enabled (and FT_GASP_DO_GRIDFIT and FT_GASP_DO_GRAY are consequently ignored).

    +

    ‘ClearType’ is Microsoft's implementation of LCD rendering, partly protected by patents.

    +

    since

    + +

    2.3.0

    +
    + +

    FT_Get_Gasp

    +

    Defined in FT_GASP_H (freetype/ftgasp.h).

    +
      FT_EXPORT( FT_Int )
+  FT_Get_Gasp( FT_Face  face,
+               FT_UInt  ppem );
+
    + +

    For a TrueType or OpenType font file, return the rasterizer behaviour flags from the font's ‘gasp’ table corresponding to a given character pixel size.

    +

    input

    + + + +
    face +

    The source face handle.

    +
    ppem +

    The vertical character pixel size.

    +
    + +

    return

    + +

    Bit flags (see FT_GASP_XXX), or FT_GASP_NO_TABLE if there is no ‘gasp’ table in the face.

    +

    note

    + +

    If you want to use the MM functionality of OpenType variation fonts (i.e., using FT_Set_Var_Design_Coordinates and friends), call this function after setting an instance since the return values can change.

    +

    since

    + +

    2.3.0

    +
    + + + + + + + +
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    + +
    + + + + +
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    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-glyph_management.html b/modules/freetype2/docs/reference/ft2-glyph_management.html new file mode 100644 index 0000000000..5962abb6ac --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-glyph_management.html @@ -0,0 +1,2107 @@ + + + + + + + + + + + + + + + + + + + + + Glyph Management - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Extended API » Glyph Management

    +
    +

    Glyph Management

    +

    Synopsis

    +

    This section contains definitions used to manage glyph data through generic FT_Glyph objects. Each of them can contain a bitmap, a vector outline, or even images in other formats. These objects are detached from FT_Face, contrary to FT_GlyphSlot.

    +

    FT_Glyph

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      typedef struct FT_GlyphRec_*  FT_Glyph;
+
    + +

    Handle to an object used to model generic glyph images. It is a pointer to the FT_GlyphRec structure and can contain a glyph bitmap or pointer.

    +

    note

    + +

    Glyph objects are not owned by the library. You must thus release them manually (through FT_Done_Glyph) before calling FT_Done_FreeType.

    +
    + +

    FT_GlyphRec

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      typedef struct  FT_GlyphRec_
+  {
+    FT_Library             library;
+    const FT_Glyph_Class*  clazz;
+    FT_Glyph_Format        format;
+    FT_Vector              advance;
+
+  } FT_GlyphRec;
+
    + +

    The root glyph structure contains a given glyph image plus its advance width in 16.16 fixed-point format.

    +

    fields

    + + + + + +
    library +

    A handle to the FreeType library object.

    +
    clazz +

    A pointer to the glyph's class. Private.

    +
    format +

    The format of the glyph's image.

    +
    advance +

    A 16.16 vector that gives the glyph's advance width.

    +
    + +
    + +

    FT_BitmapGlyph

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      typedef struct FT_BitmapGlyphRec_*  FT_BitmapGlyph;
+
    + +

    A handle to an object used to model a bitmap glyph image. This is a ‘sub-class’ of FT_Glyph, and a pointer to FT_BitmapGlyphRec.

    +
    + +

    FT_BitmapGlyphRec

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      typedef struct  FT_BitmapGlyphRec_
+  {
+    FT_GlyphRec  root;
+    FT_Int       left;
+    FT_Int       top;
+    FT_Bitmap    bitmap;
+
+  } FT_BitmapGlyphRec;
+
    + +

    A structure used for bitmap glyph images. This really is a ‘sub-class’ of FT_GlyphRec.

    +

    fields

    + + + + + +
    root +

    The root fields of FT_Glyph.

    +
    left +

    The left-side bearing, i.e., the horizontal distance from the current pen position to the left border of the glyph bitmap.

    +
    top +

    The top-side bearing, i.e., the vertical distance from the current pen position to the top border of the glyph bitmap. This distance is positive for upwards y!

    +
    bitmap +

    A descriptor for the bitmap.

    +
    + +

    note

    + +

    You can typecast an FT_Glyph to FT_BitmapGlyph if you have glyph->format == FT_GLYPH_FORMAT_BITMAP. This lets you access the bitmap's contents easily.

    +

    The corresponding pixel buffer is always owned by FT_BitmapGlyph and is thus created and destroyed with it.

    +
    + +

    FT_OutlineGlyph

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      typedef struct FT_OutlineGlyphRec_*  FT_OutlineGlyph;
+
    + +

    A handle to an object used to model an outline glyph image. This is a ‘sub-class’ of FT_Glyph, and a pointer to FT_OutlineGlyphRec.

    +
    + +

    FT_OutlineGlyphRec

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      typedef struct  FT_OutlineGlyphRec_
+  {
+    FT_GlyphRec  root;
+    FT_Outline   outline;
+
+  } FT_OutlineGlyphRec;
+
    + +

    A structure used for outline (vectorial) glyph images. This really is a ‘sub-class’ of FT_GlyphRec.

    +

    fields

    + + + +
    root +

    The root FT_Glyph fields.

    +
    outline +

    A descriptor for the outline.

    +
    + +

    note

    + +

    You can typecast an FT_Glyph to FT_OutlineGlyph if you have glyph->format == FT_GLYPH_FORMAT_OUTLINE. This lets you access the outline's content easily.

    +

    As the outline is extracted from a glyph slot, its coordinates are expressed normally in 26.6 pixels, unless the flag FT_LOAD_NO_SCALE was used in FT_Load_Glyph or FT_Load_Char.

    +

    The outline's tables are always owned by the object and are destroyed with it.

    +
    + +

    FT_SvgGlyph

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      typedef struct FT_SvgGlyphRec_*  FT_SvgGlyph;
+
    + +

    A handle to an object used to model an SVG glyph. This is a ‘sub-class’ of FT_Glyph, and a pointer to FT_SvgGlyphRec.

    +

    since

    + +

    2.12

    +
    + +

    FT_SvgGlyphRec

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      typedef struct  FT_SvgGlyphRec_
+  {
+    FT_GlyphRec  root;
+
+    FT_Byte*  svg_document;
+    FT_ULong  svg_document_length;
+
+    FT_UInt  glyph_index;
+
+    FT_Size_Metrics  metrics;
+    FT_UShort        units_per_EM;
+
+    FT_UShort  start_glyph_id;
+    FT_UShort  end_glyph_id;
+
+    FT_Matrix  transform;
+    FT_Vector  delta;
+
+  } FT_SvgGlyphRec;
+
    + +

    A structure used for OT-SVG glyphs. This is a ‘sub-class’ of FT_GlyphRec.

    +

    fields

    + + + + + + + + + + + +
    root +

    The root FT_GlyphRec fields.

    +
    svg_document +

    A pointer to the SVG document.

    +
    svg_document_length +

    The length of svg_document.

    +
    glyph_index +

    The index of the glyph to be rendered.

    +
    metrics +

    A metrics object storing the size information.

    +
    units_per_EM +

    The size of the EM square.

    +
    start_glyph_id +

    The first glyph ID in the glyph range covered by this document.

    +
    end_glyph_id +

    The last glyph ID in the glyph range covered by this document.

    +
    transform +

    A 2x2 transformation matrix to apply to the glyph while rendering it.

    +
    delta +

    Translation to apply to the glyph while rendering.

    +
    + +

    note

    + +

    The Glyph Management API requires FT_Glyph or its ‘sub-class’ to have all the information needed to completely define the glyph's rendering. Outline-based glyphs can directly apply transformations to the outline but this is not possible for an SVG document that hasn't been parsed. Therefore, the transformation is stored along with the document. In the absence of a ‘ViewBox’ or ‘Width’/'Height' attribute, the size of the ViewPort should be assumed to be ‘units_per_EM’.

    +
    + +

    FT_New_Glyph

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      FT_EXPORT( FT_Error )
+  FT_New_Glyph( FT_Library       library,
+                FT_Glyph_Format  format,
+                FT_Glyph         *aglyph );
+
    + +

    A function used to create a new empty glyph image. Note that the created FT_Glyph object must be released with FT_Done_Glyph.

    +

    input

    + + + +
    library +

    A handle to the FreeType library object.

    +
    format +

    The format of the glyph's image.

    +
    + +

    output

    + + +
    aglyph +

    A handle to the glyph object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    since

    + +

    2.10

    +
    + +

    FT_Get_Glyph

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Glyph( FT_GlyphSlot  slot,
+                FT_Glyph     *aglyph );
+
    + +

    A function used to extract a glyph image from a slot. Note that the created FT_Glyph object must be released with FT_Done_Glyph.

    +

    input

    + + +
    slot +

    A handle to the source glyph slot.

    +
    + +

    output

    + + +
    aglyph +

    A handle to the glyph object. NULL in case of error.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Because *aglyph->advance.x and *aglyph->advance.y are 16.16 fixed-point numbers, slot->advance.x and slot->advance.y (which are in 26.6 fixed-point format) must be in the range ]-32768;32768[.

    +
    + +

    FT_Glyph_Copy

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Glyph_Copy( FT_Glyph   source,
+                 FT_Glyph  *target );
+
    + +

    A function used to copy a glyph image. Note that the created FT_Glyph object must be released with FT_Done_Glyph.

    +

    input

    + + +
    source +

    A handle to the source glyph object.

    +
    + +

    output

    + + +
    target +

    A handle to the target glyph object. NULL in case of error.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Glyph_Transform

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Glyph_Transform( FT_Glyph          glyph,
+                      const FT_Matrix*  matrix,
+                      const FT_Vector*  delta );
+
    + +

    Transform a glyph image if its format is scalable.

    +

    inout

    + + +
    glyph +

    A handle to the target glyph object.

    +
    + +

    input

    + + + +
    matrix +

    A pointer to a 2x2 matrix to apply.

    +
    delta +

    A pointer to a 2d vector to apply. Coordinates are expressed in 1/64 of a pixel.

    +
    + +

    return

    + +

    FreeType error code (if not 0, the glyph format is not scalable).

    +

    note

    + +

    The 2x2 transformation matrix is also applied to the glyph's advance vector.

    +
    + +

    FT_Glyph_BBox_Mode

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      typedef enum  FT_Glyph_BBox_Mode_
+  {
+    FT_GLYPH_BBOX_UNSCALED  = 0,
+    FT_GLYPH_BBOX_SUBPIXELS = 0,
+    FT_GLYPH_BBOX_GRIDFIT   = 1,
+    FT_GLYPH_BBOX_TRUNCATE  = 2,
+    FT_GLYPH_BBOX_PIXELS    = 3
+
+  } FT_Glyph_BBox_Mode;
+
+
+  /* these constants are deprecated; use the corresponding */
+  /* `FT_Glyph_BBox_Mode` values instead                   */
+#define ft_glyph_bbox_unscaled   FT_GLYPH_BBOX_UNSCALED
+#define ft_glyph_bbox_subpixels  FT_GLYPH_BBOX_SUBPIXELS
+#define ft_glyph_bbox_gridfit    FT_GLYPH_BBOX_GRIDFIT
+#define ft_glyph_bbox_truncate   FT_GLYPH_BBOX_TRUNCATE
+#define ft_glyph_bbox_pixels     FT_GLYPH_BBOX_PIXELS
+
    + +

    The mode how the values of FT_Glyph_Get_CBox are returned.

    +

    values

    + + + + + + +
    FT_GLYPH_BBOX_UNSCALED +

    Return unscaled font units.

    +
    FT_GLYPH_BBOX_SUBPIXELS +

    Return unfitted 26.6 coordinates.

    +
    FT_GLYPH_BBOX_GRIDFIT +

    Return grid-fitted 26.6 coordinates.

    +
    FT_GLYPH_BBOX_TRUNCATE +

    Return coordinates in integer pixels.

    +
    FT_GLYPH_BBOX_PIXELS +

    Return grid-fitted pixel coordinates.

    +
    + +
    + +

    FT_Glyph_Get_CBox

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      FT_EXPORT( void )
+  FT_Glyph_Get_CBox( FT_Glyph  glyph,
+                     FT_UInt   bbox_mode,
+                     FT_BBox  *acbox );
+
    + +

    Return a glyph's ‘control box’. The control box encloses all the outline's points, including Bezier control points. Though it coincides with the exact bounding box for most glyphs, it can be slightly larger in some situations (like when rotating an outline that contains Bezier outside arcs).

    +

    Computing the control box is very fast, while getting the bounding box can take much more time as it needs to walk over all segments and arcs in the outline. To get the latter, you can use the ‘ftbbox’ component, which is dedicated to this single task.

    +

    input

    + + + +
    glyph +

    A handle to the source glyph object.

    +
    mode +

    The mode that indicates how to interpret the returned bounding box values.

    +
    + +

    output

    + + +
    acbox +

    The glyph coordinate bounding box. Coordinates are expressed in 1/64 of pixels if it is grid-fitted.

    +
    + +

    note

    + +

    Coordinates are relative to the glyph origin, using the y upwards convention.

    +

    If the glyph has been loaded with FT_LOAD_NO_SCALE, bbox_mode must be set to FT_GLYPH_BBOX_UNSCALED to get unscaled font units in 26.6 pixel format. The value FT_GLYPH_BBOX_SUBPIXELS is another name for this constant.

    +

    If the font is tricky and the glyph has been loaded with FT_LOAD_NO_SCALE, the resulting CBox is meaningless. To get reasonable values for the CBox it is necessary to load the glyph at a large ppem value (so that the hinting instructions can properly shift and scale the subglyphs), then extracting the CBox, which can be eventually converted back to font units.

    +

    Note that the maximum coordinates are exclusive, which means that one can compute the width and height of the glyph image (be it in integer or 26.6 pixels) as: +

      width  = bbox.xMax - bbox.xMin;
+  height = bbox.yMax - bbox.yMin;
+

    +

    Note also that for 26.6 coordinates, if bbox_mode is set to FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted, which corresponds to: +

      bbox.xMin = FLOOR(bbox.xMin);
+  bbox.yMin = FLOOR(bbox.yMin);
+  bbox.xMax = CEILING(bbox.xMax);
+  bbox.yMax = CEILING(bbox.yMax);
+

    +

    To get the bbox in pixel coordinates, set bbox_mode to FT_GLYPH_BBOX_TRUNCATE.

    +

    To get the bbox in grid-fitted pixel coordinates, set bbox_mode to FT_GLYPH_BBOX_PIXELS.

    +
    + +

    FT_Glyph_To_Bitmap

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Glyph_To_Bitmap( FT_Glyph*         the_glyph,
+                      FT_Render_Mode    render_mode,
+                      const FT_Vector*  origin,
+                      FT_Bool           destroy );
+
    + +

    Convert a given glyph object to a bitmap glyph object.

    +

    inout

    + + +
    the_glyph +

    A pointer to a handle to the target glyph.

    +
    + +

    input

    + + + + +
    render_mode +

    An enumeration that describes how the data is rendered.

    +
    origin +

    A pointer to a vector used to translate the glyph image before rendering. Can be 0 (if no translation). The origin is expressed in 26.6 pixels.

    +
    destroy +

    A boolean that indicates that the original glyph image should be destroyed by this function. It is never destroyed in case of error.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function does nothing if the glyph format isn't scalable.

    +

    The glyph image is translated with the origin vector before rendering.

    +

    The first parameter is a pointer to an FT_Glyph handle that will be replaced by this function (with newly allocated data). Typically, you would do something like the following (omitting error handling). +

      FT_Glyph        glyph;
+  FT_BitmapGlyph  glyph_bitmap;
+
+
+  // load glyph
+  error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAULT );
+
+  // extract glyph image
+  error = FT_Get_Glyph( face->glyph, &glyph );
+
+  // convert to a bitmap (default render mode + destroying old)
+  if ( glyph->format != FT_GLYPH_FORMAT_BITMAP )
+  {
+    error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL,
+                                0, 1 );
+    if ( error ) // `glyph' unchanged
+      ...
+  }
+
+  // access bitmap content by typecasting
+  glyph_bitmap = (FT_BitmapGlyph)glyph;
+
+  // do funny stuff with it, like blitting/drawing
+  ...
+
+  // discard glyph image (bitmap or not)
+  FT_Done_Glyph( glyph );
+

    +

    Here is another example, again without error handling. +

      FT_Glyph  glyphs[MAX_GLYPHS]
+
+
+  ...
+
+  for ( idx = 0; i < MAX_GLYPHS; i++ )
+    error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) ||
+            FT_Get_Glyph ( face->glyph, &glyphs[idx] );
+
+  ...
+
+  for ( idx = 0; i < MAX_GLYPHS; i++ )
+  {
+    FT_Glyph  bitmap = glyphs[idx];
+
+
+    ...
+
+    // after this call, `bitmap' no longer points into
+    // the `glyphs' array (and the old value isn't destroyed)
+    FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 );
+
+    ...
+
+    FT_Done_Glyph( bitmap );
+  }
+
+  ...
+
+  for ( idx = 0; i < MAX_GLYPHS; i++ )
+    FT_Done_Glyph( glyphs[idx] );
+

    +
    + +

    FT_Done_Glyph

    +

    Defined in FT_GLYPH_H (freetype/ftglyph.h).

    +
      FT_EXPORT( void )
+  FT_Done_Glyph( FT_Glyph  glyph );
+
    + +

    Destroy a given glyph.

    +

    input

    + + +
    glyph +

    A handle to the target glyph object. Can be NULL.

    +
    + +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-glyph_retrieval.html b/modules/freetype2/docs/reference/ft2-glyph_retrieval.html new file mode 100644 index 0000000000..1a7fe08d9b --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-glyph_retrieval.html @@ -0,0 +1,2238 @@ + + + + + + + + + + + + + + + + + + + + + Glyph Retrieval - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Core API » Glyph Retrieval

    +
    +

    Glyph Retrieval

    +

    Synopsis

    +

    The functions and structures collected in this section operate on single glyphs, of which FT_Load_Glyph is most important.

    +

    FT_GlyphSlot

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_GlyphSlotRec_*  FT_GlyphSlot;
+
    + +

    A handle to a given ‘glyph slot’. A slot is a container that can hold any of the glyphs contained in its parent face.

    +

    In other words, each time you call FT_Load_Glyph or FT_Load_Char, the slot's content is erased by the new glyph data, i.e., the glyph's metrics, its image (bitmap or outline), and other control information.

    +

    also

    + +

    See FT_GlyphSlotRec for the publicly accessible glyph fields.

    +
    + +

    FT_GlyphSlotRec

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_GlyphSlotRec_
+  {
+    FT_Library        library;
+    FT_Face           face;
+    FT_GlyphSlot      next;
+    FT_UInt           glyph_index; /* new in 2.10; was reserved previously */
+    FT_Generic        generic;
+
+    FT_Glyph_Metrics  metrics;
+    FT_Fixed          linearHoriAdvance;
+    FT_Fixed          linearVertAdvance;
+    FT_Vector         advance;
+
+    FT_Glyph_Format   format;
+
+    FT_Bitmap         bitmap;
+    FT_Int            bitmap_left;
+    FT_Int            bitmap_top;
+
+    FT_Outline        outline;
+
+    FT_UInt           num_subglyphs;
+    FT_SubGlyph       subglyphs;
+
+    void*             control_data;
+    long              control_len;
+
+    FT_Pos            lsb_delta;
+    FT_Pos            rsb_delta;
+
+    void*             other;
+
+    FT_Slot_Internal  internal;
+
+  } FT_GlyphSlotRec;
+
    + +

    FreeType root glyph slot class structure. A glyph slot is a container where individual glyphs can be loaded, be they in outline or bitmap format.

    +

    fields

    + + + + + + + + + + + + + + + + + + + + + + +
    library +

    A handle to the FreeType library instance this slot belongs to.

    +
    face +

    A handle to the parent face object.

    +
    next +

    In some cases (like some font tools), several glyph slots per face object can be a good thing. As this is rare, the glyph slots are listed through a direct, single-linked list using its next field.

    +
    glyph_index +

    [Since 2.10] The glyph index passed as an argument to FT_Load_Glyph while initializing the glyph slot.

    +
    generic +

    A typeless pointer unused by the FreeType library or any of its drivers. It can be used by client applications to link their own data to each glyph slot object.

    +
    metrics +

    The metrics of the last loaded glyph in the slot. The returned values depend on the last load flags (see the FT_Load_Glyph API function) and can be expressed either in 26.6 fractional pixels or font units.

    +

    Note that even when the glyph image is transformed, the metrics are not.

    +
    linearHoriAdvance +

    The advance width of the unhinted glyph. Its value is expressed in 16.16 fractional pixels, unless FT_LOAD_LINEAR_DESIGN is set when loading the glyph. This field can be important to perform correct WYSIWYG layout. Only relevant for scalable glyphs.

    +
    linearVertAdvance +

    The advance height of the unhinted glyph. Its value is expressed in 16.16 fractional pixels, unless FT_LOAD_LINEAR_DESIGN is set when loading the glyph. This field can be important to perform correct WYSIWYG layout. Only relevant for scalable glyphs.

    +
    advance +

    This shorthand is, depending on FT_LOAD_IGNORE_TRANSFORM, the transformed (hinted) advance width for the glyph, in 26.6 fractional pixel format. As specified with FT_LOAD_VERTICAL_LAYOUT, it uses either the horiAdvance or the vertAdvance value of metrics field.

    +
    format +

    This field indicates the format of the image contained in the glyph slot. Typically FT_GLYPH_FORMAT_BITMAP, FT_GLYPH_FORMAT_OUTLINE, or FT_GLYPH_FORMAT_COMPOSITE, but other values are possible.

    +
    bitmap +

    This field is used as a bitmap descriptor. Note that the address and content of the bitmap buffer can change between calls of FT_Load_Glyph and a few other functions.

    +
    bitmap_left +

    The bitmap's left bearing expressed in integer pixels.

    +
    bitmap_top +

    The bitmap's top bearing expressed in integer pixels. This is the distance from the baseline to the top-most glyph scanline, upwards y coordinates being positive.

    +
    outline +

    The outline descriptor for the current glyph image if its format is FT_GLYPH_FORMAT_OUTLINE. Once a glyph is loaded, outline can be transformed, distorted, emboldened, etc. However, it must not be freed.

    +

    [Since 2.10.1] If FT_LOAD_NO_SCALE is set, outline coordinates of OpenType variation fonts for a selected instance are internally handled as 26.6 fractional font units but returned as (rounded) integers, as expected. To get unrounded font units, don't use FT_LOAD_NO_SCALE but load the glyph with FT_LOAD_NO_HINTING and scale it, using the font's units_per_EM value as the ppem.

    +
    num_subglyphs +

    The number of subglyphs in a composite glyph. This field is only valid for the composite glyph format that should normally only be loaded with the FT_LOAD_NO_RECURSE flag.

    +
    subglyphs +

    An array of subglyph descriptors for composite glyphs. There are num_subglyphs elements in there. Currently internal to FreeType.

    +
    control_data +

    Certain font drivers can also return the control data for a given glyph image (e.g. TrueType bytecode, Type 1 charstrings, etc.). This field is a pointer to such data; it is currently internal to FreeType.

    +
    control_len +

    This is the length in bytes of the control data. Currently internal to FreeType.

    +
    other +

    Reserved.

    +
    lsb_delta +

    The difference between hinted and unhinted left side bearing while auto-hinting is active. Zero otherwise.

    +
    rsb_delta +

    The difference between hinted and unhinted right side bearing while auto-hinting is active. Zero otherwise.

    +
    + +

    note

    + +

    If FT_Load_Glyph is called with default flags (see FT_LOAD_DEFAULT) the glyph image is loaded in the glyph slot in its native format (e.g., an outline glyph for TrueType and Type 1 formats). [Since 2.9] The prospective bitmap metrics are calculated according to FT_LOAD_TARGET_XXX and other flags even for the outline glyph, even if FT_LOAD_RENDER is not set.

    +

    This image can later be converted into a bitmap by calling FT_Render_Glyph. This function searches the current renderer for the native image's format, then invokes it.

    +

    The renderer is in charge of transforming the native image through the slot's face transformation fields, then converting it into a bitmap that is returned in slot->bitmap.

    +

    Note that slot->bitmap_left and slot->bitmap_top are also used to specify the position of the bitmap relative to the current pen position (e.g., coordinates (0,0) on the baseline). Of course, slot->format is also changed to FT_GLYPH_FORMAT_BITMAP.

    +

    Here is a small pseudo code fragment that shows how to use lsb_delta and rsb_delta to do fractional positioning of glyphs: +

      FT_GlyphSlot  slot     = face->glyph;
+  FT_Pos        origin_x = 0;
+
+
+  for all glyphs do
+    <load glyph with `FT_Load_Glyph'>
+
+    FT_Outline_Translate( slot->outline, origin_x & 63, 0 );
+
+    <save glyph image, or render glyph, or ...>
+
+    <compute kern between current and next glyph
+     and add it to `origin_x'>
+
+    origin_x += slot->advance.x;
+    origin_x += slot->lsb_delta - slot->rsb_delta;
+  endfor
+

    +

    Here is another small pseudo code fragment that shows how to use lsb_delta and rsb_delta to improve integer positioning of glyphs: +

      FT_GlyphSlot  slot           = face->glyph;
+  FT_Pos        origin_x       = 0;
+  FT_Pos        prev_rsb_delta = 0;
+
+
+  for all glyphs do
+    <compute kern between current and previous glyph
+     and add it to `origin_x'>
+
+    <load glyph with `FT_Load_Glyph'>
+
+    if ( prev_rsb_delta - slot->lsb_delta >  32 )
+      origin_x -= 64;
+    else if ( prev_rsb_delta - slot->lsb_delta < -31 )
+      origin_x += 64;
+
+    prev_rsb_delta = slot->rsb_delta;
+
+    <save glyph image, or render glyph, or ...>
+
+    origin_x += slot->advance.x;
+  endfor
+

    +

    If you use strong auto-hinting, you must apply these delta values! Otherwise you will experience far too large inter-glyph spacing at small rendering sizes in most cases. Note that it doesn't harm to use the above code for other hinting modes also, since the delta values are zero then.

    +
    + +

    FT_Glyph_Metrics

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_Glyph_Metrics_
+  {
+    FT_Pos  width;
+    FT_Pos  height;
+
+    FT_Pos  horiBearingX;
+    FT_Pos  horiBearingY;
+    FT_Pos  horiAdvance;
+
+    FT_Pos  vertBearingX;
+    FT_Pos  vertBearingY;
+    FT_Pos  vertAdvance;
+
+  } FT_Glyph_Metrics;
+
    + +

    A structure to model the metrics of a single glyph. The values are expressed in 26.6 fractional pixel format; if the flag FT_LOAD_NO_SCALE has been used while loading the glyph, values are expressed in font units instead.

    +

    fields

    + + + + + + + + + +
    width +

    The glyph's width.

    +
    height +

    The glyph's height.

    +
    horiBearingX +

    Left side bearing for horizontal layout.

    +
    horiBearingY +

    Top side bearing for horizontal layout.

    +
    horiAdvance +

    Advance width for horizontal layout.

    +
    vertBearingX +

    Left side bearing for vertical layout.

    +
    vertBearingY +

    Top side bearing for vertical layout. Larger positive values mean further below the vertical glyph origin.

    +
    vertAdvance +

    Advance height for vertical layout. Positive values mean the glyph has a positive advance downward.

    +
    + +

    note

    + +

    If not disabled with FT_LOAD_NO_HINTING, the values represent dimensions of the hinted glyph (in case hinting is applicable).

    +

    Stroking a glyph with an outside border does not increase horiAdvance or vertAdvance; you have to manually adjust these values to account for the added width and height.

    +

    FreeType doesn't use the ‘VORG’ table data for CFF fonts because it doesn't have an interface to quickly retrieve the glyph height. The y coordinate of the vertical origin can be simply computed as vertBearingY + height after loading a glyph.

    +
    + +

    FT_Load_Glyph

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Load_Glyph( FT_Face   face,
+                 FT_UInt   glyph_index,
+                 FT_Int32  load_flags );
+
    + +

    Load a glyph into the glyph slot of a face object.

    +

    inout

    + + +
    face +

    A handle to the target face object where the glyph is loaded.

    +
    + +

    input

    + + + +
    glyph_index +

    The index of the glyph in the font file. For CID-keyed fonts (either in PS or in CFF format) this argument specifies the CID value.

    +
    load_flags +

    A flag indicating what to load for this glyph. The FT_LOAD_XXX flags can be used to control the glyph loading process (e.g., whether the outline should be scaled, whether to load bitmaps or not, whether to hint the outline, etc).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    For proper scaling and hinting, the active FT_Size object owned by the face has to be meaningfully initialized by calling FT_Set_Char_Size before this function, for example. The loaded glyph may be transformed. See FT_Set_Transform for the details.

    +

    For subsetted CID-keyed fonts, FT_Err_Invalid_Argument is returned for invalid CID values (that is, for CID values that don't have a corresponding glyph in the font). See the discussion of the FT_FACE_FLAG_CID_KEYED flag for more details.

    +

    If you receive FT_Err_Glyph_Too_Big, try getting the glyph outline at EM size, then scale it manually and fill it as a graphics operation.

    +
    + +

    FT_LOAD_XXX

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_LOAD_DEFAULT                      0x0
+#define FT_LOAD_NO_SCALE                     ( 1L << 0  )
+#define FT_LOAD_NO_HINTING                   ( 1L << 1  )
+#define FT_LOAD_RENDER                       ( 1L << 2  )
+#define FT_LOAD_NO_BITMAP                    ( 1L << 3  )
+#define FT_LOAD_VERTICAL_LAYOUT              ( 1L << 4  )
+#define FT_LOAD_FORCE_AUTOHINT               ( 1L << 5  )
+#define FT_LOAD_CROP_BITMAP                  ( 1L << 6  )
+#define FT_LOAD_PEDANTIC                     ( 1L << 7  )
+#define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH  ( 1L << 9  )
+#define FT_LOAD_NO_RECURSE                   ( 1L << 10 )
+#define FT_LOAD_IGNORE_TRANSFORM             ( 1L << 11 )
+#define FT_LOAD_MONOCHROME                   ( 1L << 12 )
+#define FT_LOAD_LINEAR_DESIGN                ( 1L << 13 )
+#define FT_LOAD_SBITS_ONLY                   ( 1L << 14 )
+#define FT_LOAD_NO_AUTOHINT                  ( 1L << 15 )
+  /* Bits 16-19 are used by `FT_LOAD_TARGET_` */
+#define FT_LOAD_COLOR                        ( 1L << 20 )
+#define FT_LOAD_COMPUTE_METRICS              ( 1L << 21 )
+#define FT_LOAD_BITMAP_METRICS_ONLY          ( 1L << 22 )
+#define FT_LOAD_NO_SVG                       ( 1L << 24 )
+
    + +

    A list of bit field constants for FT_Load_Glyph to indicate what kind of operations to perform during glyph loading.

    +

    values

    + + + + + + + + + + + + + + + + + + + + + +
    FT_LOAD_DEFAULT +

    Corresponding to 0, this value is used as the default glyph load operation. In this case, the following happens:

    +
      +

    1. FreeType looks for a bitmap for the glyph corresponding to the face's current size. If one is found, the function returns. The bitmap data can be accessed from the glyph slot (see note below).

      +
      2. +

    2. If no embedded bitmap is searched for or found, FreeType looks for a scalable outline. If one is found, it is loaded from the font file, scaled to device pixels, then ‘hinted’ to the pixel grid in order to optimize it. The outline data can be accessed from the glyph slot (see note below).

      +
      3. +
    +

    Note that by default the glyph loader doesn't render outlines into bitmaps. The following flags are used to modify this default behaviour to more specific and useful cases.

    +
    FT_LOAD_NO_SCALE +

    Don't scale the loaded outline glyph but keep it in font units. This flag is also assumed if FT_Size owned by the face was not properly initialized.

    +

    This flag implies FT_LOAD_NO_HINTING and FT_LOAD_NO_BITMAP, and unsets FT_LOAD_RENDER.

    +

    If the font is ‘tricky’ (see FT_FACE_FLAG_TRICKY for more), using FT_LOAD_NO_SCALE usually yields meaningless outlines because the subglyphs must be scaled and positioned with hinting instructions. This can be solved by loading the font without FT_LOAD_NO_SCALE and setting the character size to font->units_per_EM.

    +
    FT_LOAD_NO_HINTING +

    Disable hinting. This generally generates ‘blurrier’ bitmap glyphs when the glyphs are rendered in any of the anti-aliased modes. See also the note below.

    +

    This flag is implied by FT_LOAD_NO_SCALE.

    +
    FT_LOAD_RENDER +

    Call FT_Render_Glyph after the glyph is loaded. By default, the glyph is rendered in FT_RENDER_MODE_NORMAL mode. This can be overridden by FT_LOAD_TARGET_XXX or FT_LOAD_MONOCHROME.

    +

    This flag is unset by FT_LOAD_NO_SCALE.

    +
    FT_LOAD_NO_BITMAP +

    Ignore bitmap strikes when loading. Bitmap-only fonts ignore this flag.

    +

    FT_LOAD_NO_SCALE always sets this flag.

    +
    FT_LOAD_SBITS_ONLY +

    [Since 2.12] This is the opposite of FT_LOAD_NO_BITMAP, more or less: FT_Load_Glyph returns FT_Err_Invalid_Argument if the face contains a bitmap strike for the given size (or the strike selected by FT_Select_Size) but there is no glyph in the strike.

    +

    Note that this load flag was part of FreeType since version 2.0.6 but previously tagged as internal.

    +
    FT_LOAD_VERTICAL_LAYOUT +

    Load the glyph for vertical text layout. In particular, the advance value in the FT_GlyphSlotRec structure is set to the vertAdvance value of the metrics field.

    +

    In case FT_HAS_VERTICAL doesn't return true, you shouldn't use this flag currently. Reason is that in this case vertical metrics get synthesized, and those values are not always consistent across various font formats.

    +
    FT_LOAD_FORCE_AUTOHINT +

    Prefer the auto-hinter over the font's native hinter. See also the note below.

    +
    FT_LOAD_PEDANTIC +

    Make the font driver perform pedantic verifications during glyph loading and hinting. This is mostly used to detect broken glyphs in fonts. By default, FreeType tries to handle broken fonts also.

    +

    In particular, errors from the TrueType bytecode engine are not passed to the application if this flag is not set; this might result in partially hinted or distorted glyphs in case a glyph's bytecode is buggy.

    +
    FT_LOAD_NO_RECURSE +

    Don't load composite glyphs recursively. Instead, the font driver fills the num_subglyph and subglyphs values of the glyph slot; it also sets glyph->format to FT_GLYPH_FORMAT_COMPOSITE. The description of subglyphs can then be accessed with FT_Get_SubGlyph_Info.

    +

    Don't use this flag for retrieving metrics information since some font drivers only return rudimentary data.

    +

    This flag implies FT_LOAD_NO_SCALE and FT_LOAD_IGNORE_TRANSFORM.

    +
    FT_LOAD_IGNORE_TRANSFORM +

    Ignore the transform matrix set by FT_Set_Transform.

    +
    FT_LOAD_MONOCHROME +

    This flag is used with FT_LOAD_RENDER to indicate that you want to render an outline glyph to a 1-bit monochrome bitmap glyph, with 8 pixels packed into each byte of the bitmap data.

    +

    Note that this has no effect on the hinting algorithm used. You should rather use FT_LOAD_TARGET_MONO so that the monochrome-optimized hinting algorithm is used.

    +
    FT_LOAD_LINEAR_DESIGN +

    Keep linearHoriAdvance and linearVertAdvance fields of FT_GlyphSlotRec in font units. See FT_GlyphSlotRec for details.

    +
    FT_LOAD_NO_AUTOHINT +

    Disable the auto-hinter. See also the note below.

    +
    FT_LOAD_COLOR +

    Load colored glyphs. FreeType searches in the following order; there are slight differences depending on the font format.

    +

    [Since 2.5] Load embedded color bitmap images (provided FT_LOAD_NO_BITMAP is not set). The resulting color bitmaps, if available, have the FT_PIXEL_MODE_BGRA format, with pre-multiplied color channels. If the flag is not set and color bitmaps are found, they are converted to 256-level gray bitmaps, using the FT_PIXEL_MODE_GRAY format.

    +

    [Since 2.12] If the glyph index maps to an entry in the face's ‘SVG ’ table, load the associated SVG document from this table and set the format field of FT_GlyphSlotRec to FT_GLYPH_FORMAT_SVG ([since 2.13.1] provided FT_LOAD_NO_SVG is not set). Note that FreeType itself can't render SVG documents; however, the library provides hooks to seamlessly integrate an external renderer. See sections ‘The SVG driver’ and ‘OpenType SVG Fonts’ for more.

    +

    [Since 2.10, experimental] If the glyph index maps to an entry in the face's ‘COLR’ table with a ‘CPAL’ palette table (as defined in the OpenType specification), make FT_Render_Glyph provide a default blending of the color glyph layers associated with the glyph index, using the same bitmap format as embedded color bitmap images. This is mainly for convenience and works only for glyphs in ‘COLR’ v0 tables (or glyphs in ‘COLR’ v1 tables that exclusively use v0 features). For full control of color layers use FT_Get_Color_Glyph_Layer and FreeType's color functions like FT_Palette_Select instead of setting FT_LOAD_COLOR for rendering so that the client application can handle blending by itself.

    +
    FT_LOAD_NO_SVG +

    [Since 2.13.1] Ignore SVG glyph data when loading.

    +
    FT_LOAD_COMPUTE_METRICS +

    [Since 2.6.1] Compute glyph metrics from the glyph data, without the use of bundled metrics tables (for example, the ‘hdmx’ table in TrueType fonts). This flag is mainly used by font validating or font editing applications, which need to ignore, verify, or edit those tables.

    +

    Currently, this flag is only implemented for TrueType fonts.

    +
    FT_LOAD_BITMAP_METRICS_ONLY +

    [Since 2.7.1] Request loading of the metrics and bitmap image information of a (possibly embedded) bitmap glyph without allocating or copying the bitmap image data itself. No effect if the target glyph is not a bitmap image.

    +

    This flag unsets FT_LOAD_RENDER.

    +
    FT_LOAD_CROP_BITMAP +

    Ignored. Deprecated.

    +
    FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH +

    Ignored. Deprecated.

    +
    + +

    note

    + +

    By default, hinting is enabled and the font's native hinter (see FT_FACE_FLAG_HINTER) is preferred over the auto-hinter. You can disable hinting by setting FT_LOAD_NO_HINTING or change the precedence by setting FT_LOAD_FORCE_AUTOHINT. You can also set FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be used at all.

    +

    See the description of FT_FACE_FLAG_TRICKY for a special exception (affecting only a handful of Asian fonts).

    +

    Besides deciding which hinter to use, you can also decide which hinting algorithm to use. See FT_LOAD_TARGET_XXX for details.

    +

    Note that the auto-hinter needs a valid Unicode cmap (either a native one or synthesized by FreeType) for producing correct results. If a font provides an incorrect mapping (for example, assigning the character code U+005A, LATIN CAPITAL LETTER Z, to a glyph depicting a mathematical integral sign), the auto-hinter might produce useless results.

    +
    + +

    FT_LOAD_TARGET_MODE

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_LOAD_TARGET_MODE( x )                               \
+          FT_STATIC_CAST( FT_Render_Mode, ( (x) >> 16 ) & 15 )
+
    + +

    Return the FT_Render_Mode corresponding to a given FT_LOAD_TARGET_XXX value.

    +
    + +

    FT_LOAD_TARGET_XXX

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_LOAD_TARGET_( x )   ( FT_STATIC_CAST( FT_Int32, (x) & 15 ) << 16 )
+
+#define FT_LOAD_TARGET_NORMAL  FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL )
+#define FT_LOAD_TARGET_LIGHT   FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT  )
+#define FT_LOAD_TARGET_MONO    FT_LOAD_TARGET_( FT_RENDER_MODE_MONO   )
+#define FT_LOAD_TARGET_LCD     FT_LOAD_TARGET_( FT_RENDER_MODE_LCD    )
+#define FT_LOAD_TARGET_LCD_V   FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V  )
+
    + +

    A list of values to select a specific hinting algorithm for the hinter. You should OR one of these values to your load_flags when calling FT_Load_Glyph.

    +

    Note that a font's native hinters may ignore the hinting algorithm you have specified (e.g., the TrueType bytecode interpreter). You can set FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used.

    +

    values

    + + + + + + +
    FT_LOAD_TARGET_NORMAL +

    The default hinting algorithm, optimized for standard gray-level rendering. For monochrome output, use FT_LOAD_TARGET_MONO instead.

    +
    FT_LOAD_TARGET_LIGHT +

    A lighter hinting algorithm for gray-level modes. Many generated glyphs are fuzzier but better resemble their original shape. This is achieved by snapping glyphs to the pixel grid only vertically (Y-axis), as is done by FreeType's new CFF engine or Microsoft's ClearType font renderer. This preserves inter-glyph spacing in horizontal text. The snapping is done either by the native font driver, if the driver itself and the font support it, or by the auto-hinter.

    +

    Advance widths are rounded to integer values; however, using the lsb_delta and rsb_delta fields of FT_GlyphSlotRec, it is possible to get fractional advance widths for subpixel positioning (which is recommended to use).

    +

    If configuration option AF_CONFIG_OPTION_TT_SIZE_METRICS is active, TrueType-like metrics are used to make this mode behave similarly as in unpatched FreeType versions between 2.4.6 and 2.7.1 (inclusive).

    +
    FT_LOAD_TARGET_MONO +

    Strong hinting algorithm that should only be used for monochrome output. The result is probably unpleasant if the glyph is rendered in non-monochrome modes.

    +

    Note that for outline fonts only the TrueType font driver has proper monochrome hinting support, provided the TTFs contain hints for B/W rendering (which most fonts no longer provide). If these conditions are not met it is very likely that you get ugly results at smaller sizes.

    +
    FT_LOAD_TARGET_LCD +

    A variant of FT_LOAD_TARGET_LIGHT optimized for horizontally decimated LCD displays.

    +
    FT_LOAD_TARGET_LCD_V +

    A variant of FT_LOAD_TARGET_NORMAL optimized for vertically decimated LCD displays.

    +
    + +

    note

    + +

    You should use only one of the FT_LOAD_TARGET_XXX values in your load_flags. They can't be ORed.

    +

    If FT_LOAD_RENDER is also set, the glyph is rendered in the corresponding mode (i.e., the mode that matches the used algorithm best). An exception is FT_LOAD_TARGET_MONO since it implies FT_LOAD_MONOCHROME.

    +

    You can use a hinting algorithm that doesn't correspond to the same rendering mode. As an example, it is possible to use the ‘light’ hinting algorithm and have the results rendered in horizontal LCD pixel mode, with code like +

      FT_Load_Glyph( face, glyph_index,
+                 load_flags | FT_LOAD_TARGET_LIGHT );
+
+  FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD );
+

    +

    In general, you should stick with one rendering mode. For example, switching between FT_LOAD_TARGET_NORMAL and FT_LOAD_TARGET_MONO enforces a lot of recomputation for TrueType fonts, which is slow. Another reason is caching: Selecting a different mode usually causes changes in both the outlines and the rasterized bitmaps; it is thus necessary to empty the cache after a mode switch to avoid false hits.

    +
    + +

    FT_Render_Glyph

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Render_Glyph( FT_GlyphSlot    slot,
+                   FT_Render_Mode  render_mode );
+
    + +

    Convert a given glyph image to a bitmap. It does so by inspecting the glyph image format, finding the relevant renderer, and invoking it.

    +

    inout

    + + +
    slot +

    A handle to the glyph slot containing the image to convert.

    +
    + +

    input

    + + +
    render_mode +

    The render mode used to render the glyph image into a bitmap. See FT_Render_Mode for a list of possible values.

    +

    If FT_RENDER_MODE_NORMAL is used, a previous call of FT_Load_Glyph with flag FT_LOAD_COLOR makes FT_Render_Glyph provide a default blending of colored glyph layers associated with the current glyph slot (provided the font contains such layers) instead of rendering the glyph slot's outline. This is an experimental feature; see FT_LOAD_COLOR for more information.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    When FreeType outputs a bitmap of a glyph, it really outputs an alpha coverage map. If a pixel is completely covered by a filled-in outline, the bitmap contains 0xFF at that pixel, meaning that 0xFF/0xFF fraction of that pixel is covered, meaning the pixel is 100% black (or 0% bright). If a pixel is only 50% covered (value 0x80), the pixel is made 50% black (50% bright or a middle shade of grey). 0% covered means 0% black (100% bright or white).

    +

    On high-DPI screens like on smartphones and tablets, the pixels are so small that their chance of being completely covered and therefore completely black are fairly good. On the low-DPI screens, however, the situation is different. The pixels are too large for most of the details of a glyph and shades of gray are the norm rather than the exception.

    +

    This is relevant because all our screens have a second problem: they are not linear. 1 + 1 is not 2. Twice the value does not result in twice the brightness. When a pixel is only 50% covered, the coverage map says 50% black, and this translates to a pixel value of 128 when you use 8 bits per channel (0-255). However, this does not translate to 50% brightness for that pixel on our sRGB and gamma 2.2 screens. Due to their non-linearity, they dwell longer in the darks and only a pixel value of about 186 results in 50% brightness – 128 ends up too dark on both bright and dark backgrounds. The net result is that dark text looks burnt-out, pixely and blotchy on bright background, bright text too frail on dark backgrounds, and colored text on colored background (for example, red on green) seems to have dark halos or ‘dirt’ around it. The situation is especially ugly for diagonal stems like in ‘w’ glyph shapes where the quality of FreeType's anti-aliasing depends on the correct display of grays. On high-DPI screens where smaller, fully black pixels reign supreme, this doesn't matter, but on our low-DPI screens with all the gray shades, it does. 0% and 100% brightness are the same things in linear and non-linear space, just all the shades in-between aren't.

    +

    The blending function for placing text over a background is +

      dst = alpha * src + (1 - alpha) * dst    ,
+

    +

    which is known as the OVER operator.

    +

    To correctly composite an anti-aliased pixel of a glyph onto a surface,

    +
      +
    1. +

      take the foreground and background colors (e.g., in sRGB space) and apply gamma to get them in a linear space,

      +
      2. +
    2. +

      use OVER to blend the two linear colors using the glyph pixel as the alpha value (remember, the glyph bitmap is an alpha coverage bitmap), and

      +
      3. +
    3. +

      apply inverse gamma to the blended pixel and write it back to the image.

      +
      4. +
    +

    Internal testing at Adobe found that a target inverse gamma of 1.8 for step 3 gives good results across a wide range of displays with an sRGB gamma curve or a similar one.

    +

    This process can cost performance. There is an approximation that does not need to know about the background color; see https://bel.fi/alankila/lcd/ and https://bel.fi/alankila/lcd/alpcor.html for details.

    +

    ATTENTION: Linear blending is even more important when dealing with subpixel-rendered glyphs to prevent color-fringing! A subpixel-rendered glyph must first be filtered with a filter that gives equal weight to the three color primaries and does not exceed a sum of 0x100, see section ‘Subpixel Rendering’. Then the only difference to gray linear blending is that subpixel-rendered linear blending is done 3 times per pixel: red foreground subpixel to red background subpixel and so on for green and blue.

    +
    + +

    FT_Render_Mode

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef enum  FT_Render_Mode_
+  {
+    FT_RENDER_MODE_NORMAL = 0,
+    FT_RENDER_MODE_LIGHT,
+    FT_RENDER_MODE_MONO,
+    FT_RENDER_MODE_LCD,
+    FT_RENDER_MODE_LCD_V,
+    FT_RENDER_MODE_SDF,
+
+    FT_RENDER_MODE_MAX
+
+  } FT_Render_Mode;
+
+
+  /* these constants are deprecated; use the corresponding */
+  /* `FT_Render_Mode` values instead                       */
+#define ft_render_mode_normal  FT_RENDER_MODE_NORMAL
+#define ft_render_mode_mono    FT_RENDER_MODE_MONO
+
    + +

    Render modes supported by FreeType 2. Each mode corresponds to a specific type of scanline conversion performed on the outline.

    +

    For bitmap fonts and embedded bitmaps the bitmap->pixel_mode field in the FT_GlyphSlotRec structure gives the format of the returned bitmap.

    +

    All modes except FT_RENDER_MODE_MONO use 256 levels of opacity, indicating pixel coverage. Use linear alpha blending and gamma correction to correctly render non-monochrome glyph bitmaps onto a surface; see FT_Render_Glyph.

    +

    The FT_RENDER_MODE_SDF is a special render mode that uses up to 256 distance values, indicating the signed distance from the grid position to the nearest outline.

    +

    values

    + + + + + + + +
    FT_RENDER_MODE_NORMAL +

    Default render mode; it corresponds to 8-bit anti-aliased bitmaps.

    +
    FT_RENDER_MODE_LIGHT +

    This is equivalent to FT_RENDER_MODE_NORMAL. It is only defined as a separate value because render modes are also used indirectly to define hinting algorithm selectors. See FT_LOAD_TARGET_XXX for details.

    +
    FT_RENDER_MODE_MONO +

    This mode corresponds to 1-bit bitmaps (with 2 levels of opacity).

    +
    FT_RENDER_MODE_LCD +

    This mode corresponds to horizontal RGB and BGR subpixel displays like LCD screens. It produces 8-bit bitmaps that are 3 times the width of the original glyph outline in pixels, and which use the FT_PIXEL_MODE_LCD mode.

    +
    FT_RENDER_MODE_LCD_V +

    This mode corresponds to vertical RGB and BGR subpixel displays (like PDA screens, rotated LCD displays, etc.). It produces 8-bit bitmaps that are 3 times the height of the original glyph outline in pixels and use the FT_PIXEL_MODE_LCD_V mode.

    +
    FT_RENDER_MODE_SDF +

    This mode corresponds to 8-bit, single-channel signed distance field (SDF) bitmaps. Each pixel in the SDF grid is the value from the pixel's position to the nearest glyph's outline. The distances are calculated from the center of the pixel and are positive if they are filled by the outline (i.e., inside the outline) and negative otherwise. Check the note below on how to convert the output values to usable data.

    +
    + +

    note

    + +

    The selected render mode only affects vector glyphs of a font. Embedded bitmaps often have a different pixel mode like FT_PIXEL_MODE_MONO. You can use FT_Bitmap_Convert to transform them into 8-bit pixmaps.

    +

    For FT_RENDER_MODE_SDF the output bitmap buffer contains normalized distances that are packed into unsigned 8-bit values. To get pixel values in floating point representation use the following pseudo-C code for the conversion. +

    // Load glyph and render using FT_RENDER_MODE_SDF,
+// then use the output buffer as follows.
+
+...
+FT_Byte  buffer = glyph->bitmap->buffer;
+
+
+for pixel in buffer
+{
+  // `sd` is the signed distance and `spread` is the current spread;
+  // the default spread is 2 and can be changed.
+
+  float  sd = (float)pixel - 128.0f;
+
+
+  // Convert to pixel values.
+  sd = ( sd / 128.0f ) * spread;
+
+  // Store `sd` in a buffer or use as required.
+}
+

    +

    FreeType has two rasterizers for generating SDF, namely:

    +
      +
    1. +

      sdf for generating SDF directly from glyph's outline, and

      +
      2. +
    2. +

      bsdf for generating SDF from rasterized bitmaps.

      +
      3. +
    +

    Depending on the glyph type (i.e., outline or bitmap), one of the two rasterizers is chosen at runtime and used for generating SDFs. To force the use of bsdf you should render the glyph with any of the FreeType's other rendering modes (e.g., FT_RENDER_MODE_NORMAL) and then re-render with FT_RENDER_MODE_SDF.

    +

    There are some issues with stability and possible failures of the SDF renderers (specifically sdf).

    +
      +
    1. +

      The sdf rasterizer is sensitive to really small features (e.g., sharp turns that are less than 1 pixel) and imperfections in the glyph's outline, causing artifacts in the final output.

      +
      2. +
    2. +

      The sdf rasterizer has limited support for handling intersecting contours and cannot handle self-intersecting contours whatsoever. Self-intersection happens when a single connected contour intersects itself at some point; having these in your font definitely poses a problem to the rasterizer and cause artifacts, too.

      +
      3. +
    3. +

      Generating SDF for really small glyphs may result in undesirable output; the pixel grid (which stores distance information) becomes too coarse.

      +
      4. +
    4. +

      Since the output buffer is normalized, precision at smaller spreads is greater than precision at larger spread values because the output range of [0..255] gets mapped to a smaller SDF range. A spread of 2 should be sufficient in most cases.

      +
      5. +
    +

    Points (1) and (2) can be avoided by using the bsdf rasterizer, which is more stable than the sdf rasterizer in general.

    +
    + +

    FT_Get_Kerning

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Kerning( FT_Face     face,
+                  FT_UInt     left_glyph,
+                  FT_UInt     right_glyph,
+                  FT_UInt     kern_mode,
+                  FT_Vector  *akerning );
+
    + +

    Return the kerning vector between two glyphs of the same face.

    +

    input

    + + + + + +
    face +

    A handle to a source face object.

    +
    left_glyph +

    The index of the left glyph in the kern pair.

    +
    right_glyph +

    The index of the right glyph in the kern pair.

    +
    kern_mode +

    See FT_Kerning_Mode for more information. Determines the scale and dimension of the returned kerning vector.

    +
    + +

    output

    + + +
    akerning +

    The kerning vector. This is either in font units, fractional pixels (26.6 format), or pixels for scalable formats, and in pixels for fixed-sizes formats.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Only horizontal layouts (left-to-right & right-to-left) are supported by this method. Other layouts, or more sophisticated kernings, are out of the scope of this API function – they can be implemented through format-specific interfaces.

    +

    Kerning for OpenType fonts implemented in a ‘GPOS’ table is not supported; use FT_HAS_KERNING to find out whether a font has data that can be extracted with FT_Get_Kerning.

    +
    + +

    FT_Kerning_Mode

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef enum  FT_Kerning_Mode_
+  {
+    FT_KERNING_DEFAULT = 0,
+    FT_KERNING_UNFITTED,
+    FT_KERNING_UNSCALED
+
+  } FT_Kerning_Mode;
+
+
+  /* these constants are deprecated; use the corresponding */
+  /* `FT_Kerning_Mode` values instead                      */
+#define ft_kerning_default   FT_KERNING_DEFAULT
+#define ft_kerning_unfitted  FT_KERNING_UNFITTED
+#define ft_kerning_unscaled  FT_KERNING_UNSCALED
+
    + +

    An enumeration to specify the format of kerning values returned by FT_Get_Kerning.

    +

    values

    + + + + +
    FT_KERNING_DEFAULT +

    Return grid-fitted kerning distances in 26.6 fractional pixels.

    +
    FT_KERNING_UNFITTED +

    Return un-grid-fitted kerning distances in 26.6 fractional pixels.

    +
    FT_KERNING_UNSCALED +

    Return the kerning vector in original font units.

    +
    + +

    note

    + +

    FT_KERNING_DEFAULT returns full pixel values; it also makes FreeType heuristically scale down kerning distances at small ppem values so that they don't become too big.

    +

    Both FT_KERNING_DEFAULT and FT_KERNING_UNFITTED use the current horizontal scaling factor (as set e.g. with FT_Set_Char_Size) to convert font units to pixels.

    +
    + +

    FT_Get_Track_Kerning

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Track_Kerning( FT_Face    face,
+                        FT_Fixed   point_size,
+                        FT_Int     degree,
+                        FT_Fixed*  akerning );
+
    + +

    Return the track kerning for a given face object at a given size.

    +

    input

    + + + + +
    face +

    A handle to a source face object.

    +
    point_size +

    The point size in 16.16 fractional points.

    +
    degree +

    The degree of tightness. Increasingly negative values represent tighter track kerning, while increasingly positive values represent looser track kerning. Value zero means no track kerning.

    +
    + +

    output

    + + +
    akerning +

    The kerning in 16.16 fractional points, to be uniformly applied between all glyphs.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Currently, only the Type 1 font driver supports track kerning, using data from AFM files (if attached with FT_Attach_File or FT_Attach_Stream).

    +

    Only very few AFM files come with track kerning data; please refer to Adobe's AFM specification for more details.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-glyph_stroker.html b/modules/freetype2/docs/reference/ft2-glyph_stroker.html new file mode 100644 index 0000000000..63a051602f --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-glyph_stroker.html @@ -0,0 +1,2267 @@ + + + + + + + + + + + + + + + + + + + + + Glyph Stroker - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
    + +
    + +
    + + + + +
    +
    + + + +
    +
    +
    + + + + +
    +
    +
    + + + +
    +
    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Support API » Glyph Stroker

    +
    +

    Glyph Stroker

    +

    Synopsis

    +

    This component generates stroked outlines of a given vectorial glyph. It also allows you to retrieve the ‘outside’ and/or the ‘inside’ borders of the stroke.

    +

    This can be useful to generate ‘bordered’ glyph, i.e., glyphs displayed with a colored (and anti-aliased) border around their shape.

    +

    FT_Stroker

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      typedef struct FT_StrokerRec_*  FT_Stroker;
+
    + +

    Opaque handle to a path stroker object.

    +
    + +

    FT_Stroker_LineJoin

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      typedef enum  FT_Stroker_LineJoin_
+  {
+    FT_STROKER_LINEJOIN_ROUND          = 0,
+    FT_STROKER_LINEJOIN_BEVEL          = 1,
+    FT_STROKER_LINEJOIN_MITER_VARIABLE = 2,
+    FT_STROKER_LINEJOIN_MITER          = FT_STROKER_LINEJOIN_MITER_VARIABLE,
+    FT_STROKER_LINEJOIN_MITER_FIXED    = 3
+
+  } FT_Stroker_LineJoin;
+
    + +

    These values determine how two joining lines are rendered in a stroker.

    +

    values

    + + + + + + +
    FT_STROKER_LINEJOIN_ROUND +

    Used to render rounded line joins. Circular arcs are used to join two lines smoothly.

    +
    FT_STROKER_LINEJOIN_BEVEL +

    Used to render beveled line joins. The outer corner of the joined lines is filled by enclosing the triangular region of the corner with a straight line between the outer corners of each stroke.

    +
    FT_STROKER_LINEJOIN_MITER_FIXED +

    Used to render mitered line joins, with fixed bevels if the miter limit is exceeded. The outer edges of the strokes for the two segments are extended until they meet at an angle. A bevel join (see above) is used if the segments meet at too sharp an angle and the outer edges meet beyond a distance corresponding to the meter limit. This prevents long spikes being created. FT_STROKER_LINEJOIN_MITER_FIXED generates a miter line join as used in PostScript and PDF.

    +
    FT_STROKER_LINEJOIN_MITER_VARIABLE + +
    FT_STROKER_LINEJOIN_MITER +

    Used to render mitered line joins, with variable bevels if the miter limit is exceeded. The intersection of the strokes is clipped perpendicularly to the bisector, at a distance corresponding to the miter limit. This prevents long spikes being created. FT_STROKER_LINEJOIN_MITER_VARIABLE generates a mitered line join as used in XPS. FT_STROKER_LINEJOIN_MITER is an alias for FT_STROKER_LINEJOIN_MITER_VARIABLE, retained for backward compatibility.

    +
    + +
    + +

    FT_Stroker_LineCap

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      typedef enum  FT_Stroker_LineCap_
+  {
+    FT_STROKER_LINECAP_BUTT = 0,
+    FT_STROKER_LINECAP_ROUND,
+    FT_STROKER_LINECAP_SQUARE
+
+  } FT_Stroker_LineCap;
+
    + +

    These values determine how the end of opened sub-paths are rendered in a stroke.

    +

    values

    + + + + +
    FT_STROKER_LINECAP_BUTT +

    The end of lines is rendered as a full stop on the last point itself.

    +
    FT_STROKER_LINECAP_ROUND +

    The end of lines is rendered as a half-circle around the last point.

    +
    FT_STROKER_LINECAP_SQUARE +

    The end of lines is rendered as a square around the last point.

    +
    + +
    + +

    FT_StrokerBorder

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      typedef enum  FT_StrokerBorder_
+  {
+    FT_STROKER_BORDER_LEFT = 0,
+    FT_STROKER_BORDER_RIGHT
+
+  } FT_StrokerBorder;
+
    + +

    These values are used to select a given stroke border in FT_Stroker_GetBorderCounts and FT_Stroker_ExportBorder.

    +

    values

    + + + +
    FT_STROKER_BORDER_LEFT +

    Select the left border, relative to the drawing direction.

    +
    FT_STROKER_BORDER_RIGHT +

    Select the right border, relative to the drawing direction.

    +
    + +

    note

    + +

    Applications are generally interested in the ‘inside’ and ‘outside’ borders. However, there is no direct mapping between these and the ‘left’ and ‘right’ ones, since this really depends on the glyph's drawing orientation, which varies between font formats.

    +

    You can however use FT_Outline_GetInsideBorder and FT_Outline_GetOutsideBorder to get these.

    +
    + +

    FT_Outline_GetInsideBorder

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_StrokerBorder )
+  FT_Outline_GetInsideBorder( FT_Outline*  outline );
+
    + +

    Retrieve the FT_StrokerBorder value corresponding to the ‘inside’ borders of a given outline.

    +

    input

    + + +
    outline +

    The source outline handle.

    +
    + +

    return

    + +

    The border index. FT_STROKER_BORDER_RIGHT for empty or invalid outlines.

    +
    + +

    FT_Outline_GetOutsideBorder

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_StrokerBorder )
+  FT_Outline_GetOutsideBorder( FT_Outline*  outline );
+
    + +

    Retrieve the FT_StrokerBorder value corresponding to the ‘outside’ borders of a given outline.

    +

    input

    + + +
    outline +

    The source outline handle.

    +
    + +

    return

    + +

    The border index. FT_STROKER_BORDER_LEFT for empty or invalid outlines.

    +
    + +

    FT_Glyph_Stroke

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Glyph_Stroke( FT_Glyph    *pglyph,
+                   FT_Stroker   stroker,
+                   FT_Bool      destroy );
+
    + +

    Stroke a given outline glyph object with a given stroker.

    +

    inout

    + + +
    pglyph +

    Source glyph handle on input, new glyph handle on output.

    +
    + +

    input

    + + + +
    stroker +

    A stroker handle.

    +
    destroy +

    A Boolean. If 1, the source glyph object is destroyed on success.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The source glyph is untouched in case of error.

    +

    Adding stroke may yield a significantly wider and taller glyph depending on how large of a radius was used to stroke the glyph. You may need to manually adjust horizontal and vertical advance amounts to account for this added size.

    +
    + +

    FT_Glyph_StrokeBorder

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Glyph_StrokeBorder( FT_Glyph    *pglyph,
+                         FT_Stroker   stroker,
+                         FT_Bool      inside,
+                         FT_Bool      destroy );
+
    + +

    Stroke a given outline glyph object with a given stroker, but only return either its inside or outside border.

    +

    inout

    + + +
    pglyph +

    Source glyph handle on input, new glyph handle on output.

    +
    + +

    input

    + + + + +
    stroker +

    A stroker handle.

    +
    inside +

    A Boolean. If 1, return the inside border, otherwise the outside border.

    +
    destroy +

    A Boolean. If 1, the source glyph object is destroyed on success.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The source glyph is untouched in case of error.

    +

    Adding stroke may yield a significantly wider and taller glyph depending on how large of a radius was used to stroke the glyph. You may need to manually adjust horizontal and vertical advance amounts to account for this added size.

    +
    + +

    FT_Stroker_New

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stroker_New( FT_Library   library,
+                  FT_Stroker  *astroker );
+
    + +

    Create a new stroker object.

    +

    input

    + + +
    library +

    FreeType library handle.

    +
    + +

    output

    + + +
    astroker +

    A new stroker object handle. NULL in case of error.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Stroker_Set

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( void )
+  FT_Stroker_Set( FT_Stroker           stroker,
+                  FT_Fixed             radius,
+                  FT_Stroker_LineCap   line_cap,
+                  FT_Stroker_LineJoin  line_join,
+                  FT_Fixed             miter_limit );
+
    + +

    Reset a stroker object's attributes.

    +

    input

    + + + + + + +
    stroker +

    The target stroker handle.

    +
    radius +

    The border radius.

    +
    line_cap +

    The line cap style.

    +
    line_join +

    The line join style.

    +
    miter_limit +

    The maximum reciprocal sine of half-angle at the miter join, expressed as 16.16 fixed-point value.

    +
    + +

    note

    + +

    The radius is expressed in the same units as the outline coordinates.

    +

    The miter_limit multiplied by the radius gives the maximum size of a miter spike, at which it is clipped for FT_STROKER_LINEJOIN_MITER_VARIABLE or replaced with a bevel join for FT_STROKER_LINEJOIN_MITER_FIXED.

    +

    This function calls FT_Stroker_Rewind automatically.

    +
    + +

    FT_Stroker_Rewind

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( void )
+  FT_Stroker_Rewind( FT_Stroker  stroker );
+
    + +

    Reset a stroker object without changing its attributes. You should call this function before beginning a new series of calls to FT_Stroker_BeginSubPath or FT_Stroker_EndSubPath.

    +

    input

    + + +
    stroker +

    The target stroker handle.

    +
    + +
    + +

    FT_Stroker_ParseOutline

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stroker_ParseOutline( FT_Stroker   stroker,
+                           FT_Outline*  outline,
+                           FT_Bool      opened );
+
    + +

    A convenience function used to parse a whole outline with the stroker. The resulting outline(s) can be retrieved later by functions like FT_Stroker_GetCounts and FT_Stroker_Export.

    +

    input

    + + + + +
    stroker +

    The target stroker handle.

    +
    outline +

    The source outline.

    +
    opened +

    A boolean. If 1, the outline is treated as an open path instead of a closed one.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If opened is 0 (the default), the outline is treated as a closed path, and the stroker generates two distinct ‘border’ outlines.

    +

    If opened is 1, the outline is processed as an open path, and the stroker generates a single ‘stroke’ outline.

    +

    This function calls FT_Stroker_Rewind automatically.

    +
    + +

    FT_Stroker_Done

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( void )
+  FT_Stroker_Done( FT_Stroker  stroker );
+
    + +

    Destroy a stroker object.

    +

    input

    + + +
    stroker +

    A stroker handle. Can be NULL.

    +
    + +
    + +

    FT_Stroker_BeginSubPath

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stroker_BeginSubPath( FT_Stroker  stroker,
+                           FT_Vector*  to,
+                           FT_Bool     open );
+
    + +

    Start a new sub-path in the stroker.

    +

    input

    + + + + +
    stroker +

    The target stroker handle.

    +
    to +

    A pointer to the start vector.

    +
    open +

    A boolean. If 1, the sub-path is treated as an open one.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function is useful when you need to stroke a path that is not stored as an FT_Outline object.

    +
    + +

    FT_Stroker_EndSubPath

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stroker_EndSubPath( FT_Stroker  stroker );
+
    + +

    Close the current sub-path in the stroker.

    +

    input

    + + +
    stroker +

    The target stroker handle.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    You should call this function after FT_Stroker_BeginSubPath. If the subpath was not ‘opened’, this function ‘draws’ a single line segment to the start position when needed.

    +
    + +

    FT_Stroker_LineTo

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stroker_LineTo( FT_Stroker  stroker,
+                     FT_Vector*  to );
+
    + +

    ‘Draw’ a single line segment in the stroker's current sub-path, from the last position.

    +

    input

    + + + +
    stroker +

    The target stroker handle.

    +
    to +

    A pointer to the destination point.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    You should call this function between FT_Stroker_BeginSubPath and FT_Stroker_EndSubPath.

    +
    + +

    FT_Stroker_ConicTo

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stroker_ConicTo( FT_Stroker  stroker,
+                      FT_Vector*  control,
+                      FT_Vector*  to );
+
    + +

    ‘Draw’ a single quadratic Bezier in the stroker's current sub-path, from the last position.

    +

    input

    + + + + +
    stroker +

    The target stroker handle.

    +
    control +

    A pointer to a Bezier control point.

    +
    to +

    A pointer to the destination point.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    You should call this function between FT_Stroker_BeginSubPath and FT_Stroker_EndSubPath.

    +
    + +

    FT_Stroker_CubicTo

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stroker_CubicTo( FT_Stroker  stroker,
+                      FT_Vector*  control1,
+                      FT_Vector*  control2,
+                      FT_Vector*  to );
+
    + +

    ‘Draw’ a single cubic Bezier in the stroker's current sub-path, from the last position.

    +

    input

    + + + + + +
    stroker +

    The target stroker handle.

    +
    control1 +

    A pointer to the first Bezier control point.

    +
    control2 +

    A pointer to second Bezier control point.

    +
    to +

    A pointer to the destination point.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    You should call this function between FT_Stroker_BeginSubPath and FT_Stroker_EndSubPath.

    +
    + +

    FT_Stroker_GetBorderCounts

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stroker_GetBorderCounts( FT_Stroker        stroker,
+                              FT_StrokerBorder  border,
+                              FT_UInt          *anum_points,
+                              FT_UInt          *anum_contours );
+
    + +

    Call this function once you have finished parsing your paths with the stroker. It returns the number of points and contours necessary to export one of the ‘border’ or ‘stroke’ outlines generated by the stroker.

    +

    input

    + + + +
    stroker +

    The target stroker handle.

    +
    border +

    The border index.

    +
    + +

    output

    + + + +
    anum_points +

    The number of points.

    +
    anum_contours +

    The number of contours.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    When an outline, or a sub-path, is ‘closed’, the stroker generates two independent ‘border’ outlines, named ‘left’ and ‘right’.

    +

    When the outline, or a sub-path, is ‘opened’, the stroker merges the ‘border’ outlines with caps. The ‘left’ border receives all points, while the ‘right’ border becomes empty.

    +

    Use the function FT_Stroker_GetCounts instead if you want to retrieve the counts associated to both borders.

    +
    + +

    FT_Stroker_ExportBorder

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( void )
+  FT_Stroker_ExportBorder( FT_Stroker        stroker,
+                           FT_StrokerBorder  border,
+                           FT_Outline*       outline );
+
    + +

    Call this function after FT_Stroker_GetBorderCounts to export the corresponding border to your own FT_Outline structure.

    +

    Note that this function appends the border points and contours to your outline, but does not try to resize its arrays.

    +

    input

    + + + + +
    stroker +

    The target stroker handle.

    +
    border +

    The border index.

    +
    outline +

    The target outline handle.

    +
    + +

    note

    + +

    Always call this function after FT_Stroker_GetBorderCounts to get sure that there is enough room in your FT_Outline object to receive all new data.

    +

    When an outline, or a sub-path, is ‘closed’, the stroker generates two independent ‘border’ outlines, named ‘left’ and ‘right’.

    +

    When the outline, or a sub-path, is ‘opened’, the stroker merges the ‘border’ outlines with caps. The ‘left’ border receives all points, while the ‘right’ border becomes empty.

    +

    Use the function FT_Stroker_Export instead if you want to retrieve all borders at once.

    +
    + +

    FT_Stroker_GetCounts

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stroker_GetCounts( FT_Stroker  stroker,
+                        FT_UInt    *anum_points,
+                        FT_UInt    *anum_contours );
+
    + +

    Call this function once you have finished parsing your paths with the stroker. It returns the number of points and contours necessary to export all points/borders from the stroked outline/path.

    +

    input

    + + +
    stroker +

    The target stroker handle.

    +
    + +

    output

    + + + +
    anum_points +

    The number of points.

    +
    anum_contours +

    The number of contours.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Stroker_Export

    +

    Defined in FT_STROKER_H (freetype/ftstroke.h).

    +
      FT_EXPORT( void )
+  FT_Stroker_Export( FT_Stroker   stroker,
+                     FT_Outline*  outline );
+
    + +

    Call this function after FT_Stroker_GetBorderCounts to export all borders to your own FT_Outline structure.

    +

    Note that this function appends the border points and contours to your outline, but does not try to resize its arrays.

    +

    input

    + + + +
    stroker +

    The target stroker handle.

    +
    outline +

    The target outline handle.

    +
    + +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-glyph_variants.html b/modules/freetype2/docs/reference/ft2-glyph_variants.html new file mode 100644 index 0000000000..5a02f1ee51 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-glyph_variants.html @@ -0,0 +1,1583 @@ + + + + + + + + + + + + + + + + + + + + + Unicode Variation Sequences - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Extended API » Unicode Variation Sequences

    +
    +

    Unicode Variation Sequences

    +

    Synopsis

    +

    Many characters, especially for CJK scripts, have variant forms. They are a sort of grey area somewhere between being totally irrelevant and semantically distinct; for this reason, the Unicode consortium decided to introduce Variation Sequences (VS), consisting of a Unicode base character and a variation selector instead of further extending the already huge number of characters.

    +

    Unicode maintains two different sets, namely ‘Standardized Variation Sequences’ and registered ‘Ideographic Variation Sequences’ (IVS), collected in the ‘Ideographic Variation Database’ (IVD).

    +

    https://unicode.org/Public/UCD/latest/ucd/StandardizedVariants.txt https://unicode.org/reports/tr37/ https://unicode.org/ivd/

    +

    To date (January 2017), the character with the most ideographic variations is U+9089, having 32 such IVS.

    +

    Three Mongolian Variation Selectors have the values U+180B-U+180D; 256 generic Variation Selectors are encoded in the ranges U+FE00-U+FE0F and U+E0100-U+E01EF. IVS currently use Variation Selectors from the range U+E0100-U+E01EF only.

    +

    A VS consists of the base character value followed by a single Variation Selector. For example, to get the first variation of U+9089, you have to write the character sequence U+9089 U+E0100.

    +

    Adobe and MS decided to support both standardized and ideographic VS with a new cmap subtable (format 14). It is an odd subtable because it is not a mapping of input code points to glyphs, but contains lists of all variations supported by the font.

    +

    A variation may be either ‘default’ or ‘non-default’ for a given font. A default variation is the one you will get for that code point if you look it up in the standard Unicode cmap. A non-default variation is a different glyph.

    +

    FT_Face_GetCharVariantIndex

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_UInt )
+  FT_Face_GetCharVariantIndex( FT_Face   face,
+                               FT_ULong  charcode,
+                               FT_ULong  variantSelector );
+
    + +

    Return the glyph index of a given character code as modified by the variation selector.

    +

    input

    + + + + +
    face +

    A handle to the source face object.

    +
    charcode +

    The character code point in Unicode.

    +
    variantSelector +

    The Unicode code point of the variation selector.

    +
    + +

    return

    + +

    The glyph index. 0 means either ‘undefined character code’, or ‘undefined selector code’, or ‘no variation selector cmap subtable’, or ‘current CharMap is not Unicode’.

    +

    note

    + +

    If you use FreeType to manipulate the contents of font files directly, be aware that the glyph index returned by this function doesn't always correspond to the internal indices used within the file. This is done to ensure that value 0 always corresponds to the ‘missing glyph’.

    +

    This function is only meaningful if a) the font has a variation selector cmap sub table, and b) the current charmap has a Unicode encoding.

    +

    since

    + +

    2.3.6

    +
    + +

    FT_Face_GetCharVariantIsDefault

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Int )
+  FT_Face_GetCharVariantIsDefault( FT_Face   face,
+                                   FT_ULong  charcode,
+                                   FT_ULong  variantSelector );
+
    + +

    Check whether this variation of this Unicode character is the one to be found in the charmap.

    +

    input

    + + + + +
    face +

    A handle to the source face object.

    +
    charcode +

    The character codepoint in Unicode.

    +
    variantSelector +

    The Unicode codepoint of the variation selector.

    +
    + +

    return

    + +

    1 if found in the standard (Unicode) cmap, 0 if found in the variation selector cmap, or -1 if it is not a variation.

    +

    note

    + +

    This function is only meaningful if the font has a variation selector cmap subtable.

    +

    since

    + +

    2.3.6

    +
    + +

    FT_Face_GetVariantSelectors

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_UInt32* )
+  FT_Face_GetVariantSelectors( FT_Face  face );
+
    + +

    Return a zero-terminated list of Unicode variation selectors found in the font.

    +

    input

    + + +
    face +

    A handle to the source face object.

    +
    + +

    return

    + +

    A pointer to an array of selector code points, or NULL if there is no valid variation selector cmap subtable.

    +

    note

    + +

    The last item in the array is 0; the array is owned by the FT_Face object but can be overwritten or released on the next call to a FreeType function.

    +

    since

    + +

    2.3.6

    +
    + +

    FT_Face_GetVariantsOfChar

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_UInt32* )
+  FT_Face_GetVariantsOfChar( FT_Face   face,
+                             FT_ULong  charcode );
+
    + +

    Return a zero-terminated list of Unicode variation selectors found for the specified character code.

    +

    input

    + + + +
    face +

    A handle to the source face object.

    +
    charcode +

    The character codepoint in Unicode.

    +
    + +

    return

    + +

    A pointer to an array of variation selector code points that are active for the given character, or NULL if the corresponding list is empty.

    +

    note

    + +

    The last item in the array is 0; the array is owned by the FT_Face object but can be overwritten or released on the next call to a FreeType function.

    +

    since

    + +

    2.3.6

    +
    + +

    FT_Face_GetCharsOfVariant

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_UInt32* )
+  FT_Face_GetCharsOfVariant( FT_Face   face,
+                             FT_ULong  variantSelector );
+
    + +

    Return a zero-terminated list of Unicode character codes found for the specified variation selector.

    +

    input

    + + + +
    face +

    A handle to the source face object.

    +
    variantSelector +

    The variation selector code point in Unicode.

    +
    + +

    return

    + +

    A list of all the code points that are specified by this selector (both default and non-default codes are returned) or NULL if there is no valid cmap or the variation selector is invalid.

    +

    note

    + +

    The last item in the array is 0; the array is owned by the FT_Face object but can be overwritten or released on the next call to a FreeType function.

    +

    since

    + +

    2.3.6

    +
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    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-gx_validation.html b/modules/freetype2/docs/reference/ft2-gx_validation.html new file mode 100644 index 0000000000..db56d5c6d1 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-gx_validation.html @@ -0,0 +1,1671 @@ + + + + + + + + + + + + + + + + + + + + + TrueTypeGX/AAT Validation - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Miscellaneous » TrueTypeGX/AAT Validation

    +
    +

    TrueTypeGX/AAT Validation

    +

    Synopsis

    +

    This section contains the declaration of functions to validate some TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, trak, prop, lcar).

    +

    FT_TrueTypeGX_Validate

    +

    Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h).

    +
      FT_EXPORT( FT_Error )
+  FT_TrueTypeGX_Validate( FT_Face   face,
+                          FT_UInt   validation_flags,
+                          FT_Bytes  tables[FT_VALIDATE_GX_LENGTH],
+                          FT_UInt   table_length );
+
    + +

    Validate various TrueTypeGX tables to assure that all offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming).

    +

    input

    + + + + +
    face +

    A handle to the input face.

    +
    validation_flags +

    A bit field that specifies the tables to be validated. See FT_VALIDATE_GXXXX for possible values.

    +
    table_length +

    The size of the tables array. Normally, FT_VALIDATE_GX_LENGTH should be passed.

    +
    + +

    output

    + + +
    tables +

    The array where all validated sfnt tables are stored. The array itself must be allocated by a client.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function only works with TrueTypeGX fonts, returning an error otherwise.

    +

    After use, the application should deallocate the buffers pointed to by each tables element, by calling FT_TrueTypeGX_Free. A NULL value indicates that the table either doesn't exist in the font, the application hasn't asked for validation, or the validator doesn't have the ability to validate the sfnt table.

    +
    + +

    FT_TrueTypeGX_Free

    +

    Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h).

    +
      FT_EXPORT( void )
+  FT_TrueTypeGX_Free( FT_Face   face,
+                      FT_Bytes  table );
+
    + +

    Free the buffer allocated by TrueTypeGX validator.

    +

    input

    + + + +
    face +

    A handle to the input face.

    +
    table +

    The pointer to the buffer allocated by FT_TrueTypeGX_Validate.

    +
    + +

    note

    + +

    This function must be used to free the buffer allocated by FT_TrueTypeGX_Validate only.

    +
    + +

    FT_ClassicKern_Validate

    +

    Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h).

    +
      FT_EXPORT( FT_Error )
+  FT_ClassicKern_Validate( FT_Face    face,
+                           FT_UInt    validation_flags,
+                           FT_Bytes  *ckern_table );
+
    + +

    Validate classic (16-bit format) kern table to assure that the offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming).

    +

    The ‘kern’ table validator in FT_TrueTypeGX_Validate deals with both the new 32-bit format and the classic 16-bit format, while FT_ClassicKern_Validate only supports the classic 16-bit format.

    +

    input

    + + + +
    face +

    A handle to the input face.

    +
    validation_flags +

    A bit field that specifies the dialect to be validated. See FT_VALIDATE_CKERNXXX for possible values.

    +
    + +

    output

    + + +
    ckern_table +

    A pointer to the kern table.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    After use, the application should deallocate the buffers pointed to by ckern_table, by calling FT_ClassicKern_Free. A NULL value indicates that the table doesn't exist in the font.

    +
    + +

    FT_ClassicKern_Free

    +

    Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h).

    +
      FT_EXPORT( void )
+  FT_ClassicKern_Free( FT_Face   face,
+                       FT_Bytes  table );
+
    + +

    Free the buffer allocated by classic Kern validator.

    +

    input

    + + + +
    face +

    A handle to the input face.

    +
    table +

    The pointer to the buffer that is allocated by FT_ClassicKern_Validate.

    +
    + +

    note

    + +

    This function must be used to free the buffer allocated by FT_ClassicKern_Validate only.

    +
    + +

    FT_VALIDATE_GX_LENGTH

    +

    Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h).

    +
    #define FT_VALIDATE_GX_LENGTH  ( FT_VALIDATE_GX_LAST_INDEX + 1 )
+
    + +

    The number of tables checked in this module. Use it as a parameter for the table-length argument of function FT_TrueTypeGX_Validate.

    +
    + +

    FT_VALIDATE_GXXXX

    +

    Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h).

    +
    #define FT_VALIDATE_feat  FT_VALIDATE_GX_BITFIELD( feat )
+#define FT_VALIDATE_mort  FT_VALIDATE_GX_BITFIELD( mort )
+#define FT_VALIDATE_morx  FT_VALIDATE_GX_BITFIELD( morx )
+#define FT_VALIDATE_bsln  FT_VALIDATE_GX_BITFIELD( bsln )
+#define FT_VALIDATE_just  FT_VALIDATE_GX_BITFIELD( just )
+#define FT_VALIDATE_kern  FT_VALIDATE_GX_BITFIELD( kern )
+#define FT_VALIDATE_opbd  FT_VALIDATE_GX_BITFIELD( opbd )
+#define FT_VALIDATE_trak  FT_VALIDATE_GX_BITFIELD( trak )
+#define FT_VALIDATE_prop  FT_VALIDATE_GX_BITFIELD( prop )
+#define FT_VALIDATE_lcar  FT_VALIDATE_GX_BITFIELD( lcar )
+
+#define FT_VALIDATE_GX  ( FT_VALIDATE_feat | \
+                          FT_VALIDATE_mort | \
+                          FT_VALIDATE_morx | \
+                          FT_VALIDATE_bsln | \
+                          FT_VALIDATE_just | \
+                          FT_VALIDATE_kern | \
+                          FT_VALIDATE_opbd | \
+                          FT_VALIDATE_trak | \
+                          FT_VALIDATE_prop | \
+                          FT_VALIDATE_lcar )
+
    + +

    A list of bit-field constants used with FT_TrueTypeGX_Validate to indicate which TrueTypeGX/AAT Type tables should be validated.

    +

    values

    + + + + + + + + + + + + +
    FT_VALIDATE_feat +

    Validate ‘feat’ table.

    +
    FT_VALIDATE_mort +

    Validate ‘mort’ table.

    +
    FT_VALIDATE_morx +

    Validate ‘morx’ table.

    +
    FT_VALIDATE_bsln +

    Validate ‘bsln’ table.

    +
    FT_VALIDATE_just +

    Validate ‘just’ table.

    +
    FT_VALIDATE_kern +

    Validate ‘kern’ table.

    +
    FT_VALIDATE_opbd +

    Validate ‘opbd’ table.

    +
    FT_VALIDATE_trak +

    Validate ‘trak’ table.

    +
    FT_VALIDATE_prop +

    Validate ‘prop’ table.

    +
    FT_VALIDATE_lcar +

    Validate ‘lcar’ table.

    +
    FT_VALIDATE_GX +

    Validate all TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, trak, prop and lcar).

    +
    + +
    + +

    FT_VALIDATE_CKERNXXX

    +

    Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h).

    +
    #define FT_VALIDATE_MS     ( FT_VALIDATE_GX_START << 0 )
+#define FT_VALIDATE_APPLE  ( FT_VALIDATE_GX_START << 1 )
+
+#define FT_VALIDATE_CKERN  ( FT_VALIDATE_MS | FT_VALIDATE_APPLE )
+
    + +

    A list of bit-field constants used with FT_ClassicKern_Validate to indicate the classic kern dialect or dialects. If the selected type doesn't fit, FT_ClassicKern_Validate regards the table as invalid.

    +

    values

    + + + + +
    FT_VALIDATE_MS +

    Handle the ‘kern’ table as a classic Microsoft kern table.

    +
    FT_VALIDATE_APPLE +

    Handle the ‘kern’ table as a classic Apple kern table.

    +
    FT_VALIDATE_CKERN +

    Handle the ‘kern’ as either classic Apple or Microsoft kern table.

    +
    + +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
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    FreeType » Docs » Support API » GZIP Streams

    +
    +

    GZIP Streams

    +

    Synopsis

    +

    In certain builds of the library, gzip compression recognition is automatically handled when calling FT_New_Face or FT_Open_Face. This means that if no font driver is capable of handling the raw compressed file, the library will try to open a gzipped stream from it and re-open the face with it.

    +

    The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance.

    +

    This section contains the declaration of Gzip-specific functions.

    +

    FT_Stream_OpenGzip

    +

    Defined in FT_GZIP_H (freetype/ftgzip.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stream_OpenGzip( FT_Stream  stream,
+                      FT_Stream  source );
+
    + +

    Open a new stream to parse gzip-compressed font files. This is mainly used to support the compressed *.pcf.gz fonts that come with XFree86.

    +

    input

    + + + +
    stream +

    The target embedding stream.

    +
    source +

    The source stream.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The source stream must be opened before calling this function.

    +

    Calling the internal function FT_Stream_Close on the new stream will not call FT_Stream_Close on the source stream. None of the stream objects will be released to the heap.

    +

    This function may return FT_Err_Unimplemented_Feature if your build of FreeType was not compiled with zlib support.

    +
    + +

    FT_Gzip_Uncompress

    +

    Defined in FT_GZIP_H (freetype/ftgzip.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Gzip_Uncompress( FT_Memory       memory,
+                      FT_Byte*        output,
+                      FT_ULong*       output_len,
+                      const FT_Byte*  input,
+                      FT_ULong        input_len );
+
    + +

    Decompress a zipped input buffer into an output buffer. This function is modeled after zlib's uncompress function.

    +

    input

    + + + + +
    memory +

    A FreeType memory handle.

    +
    input +

    The input buffer.

    +
    input_len +

    The length of the input buffer.

    +
    + +

    output

    + + +
    output +

    The output buffer.

    +
    + +

    inout

    + + +
    output_len +

    Before calling the function, this is the total size of the output buffer, which must be large enough to hold the entire uncompressed data (so the size of the uncompressed data must be known in advance). After calling the function, output_len is the size of the used data in output.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function may return FT_Err_Unimplemented_Feature if your build of FreeType was not compiled with zlib support.

    +

    since

    + +

    2.5.1

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-header_file_macros.html b/modules/freetype2/docs/reference/ft2-header_file_macros.html new file mode 100644 index 0000000000..c3dee30464 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-header_file_macros.html @@ -0,0 +1,2437 @@ + + + + + + + + + + + + + + + + + + + + + Header File Macros - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
    + +
    + +
    + + + + +
    +
    + + + +
    +
    +
    + + + + +
    +
    +
    + + + +
    +
    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Extended API » Header File Macros

    +
    +

    Header File Macros

    +

    Synopsis

    +

    In addition to the normal scheme of including header files like +

      #include <freetype/freetype.h>
+  #include <freetype/ftmm.h>
+  #include <freetype/ftglyph.h>
+

    +

    it is possible to used named macros instead. They can be used directly in #include statements as in +

      #include FT_FREETYPE_H
+  #include FT_MULTIPLE_MASTERS_H
+  #include FT_GLYPH_H
+

    +

    These macros were introduced to overcome the infamous 8.3 naming rule required by DOS (and FT_MULTIPLE_MASTERS_H is a lot more meaningful than ftmm.h).

    +

    FT_CONFIG_CONFIG_H

    +
    #ifndef FT_CONFIG_CONFIG_H
+#define FT_CONFIG_CONFIG_H  <freetype/config/ftconfig.h>
+#endif
+
    + +

    A macro used in #include statements to name the file containing FreeType 2 configuration data.

    +
    + +

    FT_CONFIG_STANDARD_LIBRARY_H

    +
    #ifndef FT_CONFIG_STANDARD_LIBRARY_H
+#define FT_CONFIG_STANDARD_LIBRARY_H  <freetype/config/ftstdlib.h>
+#endif
+
    + +

    A macro used in #include statements to name the file containing FreeType 2 interface to the standard C library functions.

    +
    + +

    FT_CONFIG_OPTIONS_H

    +
    #ifndef FT_CONFIG_OPTIONS_H
+#define FT_CONFIG_OPTIONS_H  <freetype/config/ftoption.h>
+#endif
+
    + +

    A macro used in #include statements to name the file containing FreeType 2 project-specific configuration options.

    +
    + +

    FT_CONFIG_MODULES_H

    +
    #ifndef FT_CONFIG_MODULES_H
+#define FT_CONFIG_MODULES_H  <freetype/config/ftmodule.h>
+#endif
+
    + +

    A macro used in #include statements to name the file containing the list of FreeType 2 modules that are statically linked to new library instances in FT_Init_FreeType.

    +
    + +

    FT_FREETYPE_H

    +
    #define FT_FREETYPE_H  <freetype/freetype.h>
+
    + +

    A macro used in #include statements to name the file containing the base FreeType 2 API.

    +
    + +

    FT_ERRORS_H

    +
    #define FT_ERRORS_H  <freetype/fterrors.h>
+
    + +

    A macro used in #include statements to name the file containing the list of FreeType 2 error codes (and messages).

    +

    It is included by FT_FREETYPE_H.

    +
    + +

    FT_MODULE_ERRORS_H

    +
    #define FT_MODULE_ERRORS_H  <freetype/ftmoderr.h>
+
    + +

    A macro used in #include statements to name the file containing the list of FreeType 2 module error offsets (and messages).

    +
    + +

    FT_SYSTEM_H

    +
    #define FT_SYSTEM_H  <freetype/ftsystem.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 interface to low-level operations (i.e., memory management and stream i/o).

    +

    It is included by FT_FREETYPE_H.

    +
    + +

    FT_IMAGE_H

    +
    #define FT_IMAGE_H  <freetype/ftimage.h>
+
    + +

    A macro used in #include statements to name the file containing type definitions related to glyph images (i.e., bitmaps, outlines, scan-converter parameters).

    +

    It is included by FT_FREETYPE_H.

    +
    + +

    FT_TYPES_H

    +
    #define FT_TYPES_H  <freetype/fttypes.h>
+
    + +

    A macro used in #include statements to name the file containing the basic data types defined by FreeType 2.

    +

    It is included by FT_FREETYPE_H.

    +
    + +

    FT_LIST_H

    +
    #define FT_LIST_H  <freetype/ftlist.h>
+
    + +

    A macro used in #include statements to name the file containing the list management API of FreeType 2.

    +

    (Most applications will never need to include this file.)

    +
    + +

    FT_OUTLINE_H

    +
    #define FT_OUTLINE_H  <freetype/ftoutln.h>
+
    + +

    A macro used in #include statements to name the file containing the scalable outline management API of FreeType 2.

    +
    + +

    FT_SIZES_H

    +
    #define FT_SIZES_H  <freetype/ftsizes.h>
+
    + +

    A macro used in #include statements to name the file containing the API which manages multiple FT_Size objects per face.

    +
    + +

    FT_MODULE_H

    +
    #define FT_MODULE_H  <freetype/ftmodapi.h>
+
    + +

    A macro used in #include statements to name the file containing the module management API of FreeType 2.

    +
    + +

    FT_RENDER_H

    +
    #define FT_RENDER_H  <freetype/ftrender.h>
+
    + +

    A macro used in #include statements to name the file containing the renderer module management API of FreeType 2.

    +
    + +

    FT_DRIVER_H

    +
    #define FT_DRIVER_H  <freetype/ftdriver.h>
+
    + +

    A macro used in #include statements to name the file containing structures and macros related to the driver modules.

    +
    + +

    FT_AUTOHINTER_H

    +
    #define FT_AUTOHINTER_H  FT_DRIVER_H
+
    + +

    A macro used in #include statements to name the file containing structures and macros related to the auto-hinting module.

    +

    Deprecated since version 2.9; use FT_DRIVER_H instead.

    +
    + +

    FT_CFF_DRIVER_H

    +
    #define FT_CFF_DRIVER_H  FT_DRIVER_H
+
    + +

    A macro used in #include statements to name the file containing structures and macros related to the CFF driver module.

    +

    Deprecated since version 2.9; use FT_DRIVER_H instead.

    +
    + +

    FT_TRUETYPE_DRIVER_H

    +
    #define FT_TRUETYPE_DRIVER_H  FT_DRIVER_H
+
    + +

    A macro used in #include statements to name the file containing structures and macros related to the TrueType driver module.

    +

    Deprecated since version 2.9; use FT_DRIVER_H instead.

    +
    + +

    FT_PCF_DRIVER_H

    +
    #define FT_PCF_DRIVER_H  FT_DRIVER_H
+
    + +

    A macro used in #include statements to name the file containing structures and macros related to the PCF driver module.

    +

    Deprecated since version 2.9; use FT_DRIVER_H instead.

    +
    + +

    FT_TYPE1_TABLES_H

    +
    #define FT_TYPE1_TABLES_H  <freetype/t1tables.h>
+
    + +

    A macro used in #include statements to name the file containing the types and API specific to the Type 1 format.

    +
    + +

    FT_TRUETYPE_IDS_H

    +
    #define FT_TRUETYPE_IDS_H  <freetype/ttnameid.h>
+
    + +

    A macro used in #include statements to name the file containing the enumeration values which identify name strings, languages, encodings, etc. This file really contains a large set of constant macro definitions, taken from the TrueType and OpenType specifications.

    +
    + +

    FT_TRUETYPE_TABLES_H

    +
    #define FT_TRUETYPE_TABLES_H  <freetype/tttables.h>
+
    + +

    A macro used in #include statements to name the file containing the types and API specific to the TrueType (as well as OpenType) format.

    +
    + +

    FT_TRUETYPE_TAGS_H

    +
    #define FT_TRUETYPE_TAGS_H  <freetype/tttags.h>
+
    + +

    A macro used in #include statements to name the file containing the definitions of TrueType four-byte ‘tags’ which identify blocks in SFNT-based font formats (i.e., TrueType and OpenType).

    +
    + +

    FT_BDF_H

    +
    #define FT_BDF_H  <freetype/ftbdf.h>
+
    + +

    A macro used in #include statements to name the file containing the definitions of an API which accesses BDF-specific strings from a face.

    +
    + +

    FT_CID_H

    +
    #define FT_CID_H  <freetype/ftcid.h>
+
    + +

    A macro used in #include statements to name the file containing the definitions of an API which access CID font information from a face.

    +
    + +

    FT_GZIP_H

    +
    #define FT_GZIP_H  <freetype/ftgzip.h>
+
    + +

    A macro used in #include statements to name the file containing the definitions of an API which supports gzip-compressed files.

    +
    + +

    FT_LZW_H

    +
    #define FT_LZW_H  <freetype/ftlzw.h>
+
    + +

    A macro used in #include statements to name the file containing the definitions of an API which supports LZW-compressed files.

    +
    + +

    FT_BZIP2_H

    +
    #define FT_BZIP2_H  <freetype/ftbzip2.h>
+
    + +

    A macro used in #include statements to name the file containing the definitions of an API which supports bzip2-compressed files.

    +
    + +

    FT_WINFONTS_H

    +
    #define FT_WINFONTS_H   <freetype/ftwinfnt.h>
+
    + +

    A macro used in #include statements to name the file containing the definitions of an API which supports Windows FNT files.

    +
    + +

    FT_GLYPH_H

    +
    #define FT_GLYPH_H  <freetype/ftglyph.h>
+
    + +

    A macro used in #include statements to name the file containing the API of the optional glyph management component.

    +
    + +

    FT_BITMAP_H

    +
    #define FT_BITMAP_H  <freetype/ftbitmap.h>
+
    + +

    A macro used in #include statements to name the file containing the API of the optional bitmap conversion component.

    +
    + +

    FT_BBOX_H

    +
    #define FT_BBOX_H  <freetype/ftbbox.h>
+
    + +

    A macro used in #include statements to name the file containing the API of the optional exact bounding box computation routines.

    +
    + +

    FT_CACHE_H

    +
    #define FT_CACHE_H  <freetype/ftcache.h>
+
    + +

    A macro used in #include statements to name the file containing the API of the optional FreeType 2 cache sub-system.

    +
    + +

    FT_MAC_H

    +
    #define FT_MAC_H  <freetype/ftmac.h>
+
    + +

    A macro used in #include statements to name the file containing the Macintosh-specific FreeType 2 API. The latter is used to access fonts embedded in resource forks.

    +

    This header file must be explicitly included by client applications compiled on the Mac (note that the base API still works though).

    +
    + +

    FT_MULTIPLE_MASTERS_H

    +
    #define FT_MULTIPLE_MASTERS_H  <freetype/ftmm.h>
+
    + +

    A macro used in #include statements to name the file containing the optional multiple-masters management API of FreeType 2.

    +
    + +

    FT_SFNT_NAMES_H

    +
    #define FT_SFNT_NAMES_H  <freetype/ftsnames.h>
+
    + +

    A macro used in #include statements to name the file containing the optional FreeType 2 API which accesses embedded ‘name’ strings in SFNT-based font formats (i.e., TrueType and OpenType).

    +
    + +

    FT_OPENTYPE_VALIDATE_H

    +
    #define FT_OPENTYPE_VALIDATE_H  <freetype/ftotval.h>
+
    + +

    A macro used in #include statements to name the file containing the optional FreeType 2 API which validates OpenType tables (‘BASE’, ‘GDEF’, ‘GPOS’, ‘GSUB’, ‘JSTF’).

    +
    + +

    FT_GX_VALIDATE_H

    +
    #define FT_GX_VALIDATE_H  <freetype/ftgxval.h>
+
    + +

    A macro used in #include statements to name the file containing the optional FreeType 2 API which validates TrueTypeGX/AAT tables (‘feat’, ‘mort’, ‘morx’, ‘bsln’, ‘just’, ‘kern’, ‘opbd’, ‘trak’, ‘prop’).

    +
    + +

    FT_PFR_H

    +
    #define FT_PFR_H  <freetype/ftpfr.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which accesses PFR-specific data.

    +
    + +

    FT_STROKER_H

    +
    #define FT_STROKER_H  <freetype/ftstroke.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which provides functions to stroke outline paths.

    +
    + +

    FT_SYNTHESIS_H

    +
    #define FT_SYNTHESIS_H  <freetype/ftsynth.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which performs artificial obliquing and emboldening.

    +
    + +

    FT_FONT_FORMATS_H

    +
    #define FT_FONT_FORMATS_H  <freetype/ftfntfmt.h>
+
+  /* deprecated */
+#define FT_XFREE86_H  FT_FONT_FORMATS_H
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which provides functions specific to font formats.

    +
    + +

    FT_TRIGONOMETRY_H

    +
    #define FT_TRIGONOMETRY_H  <freetype/fttrigon.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which performs trigonometric computations (e.g., cosines and arc tangents).

    +
    + +

    FT_LCD_FILTER_H

    +
    #define FT_LCD_FILTER_H  <freetype/ftlcdfil.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which performs color filtering for subpixel rendering.

    +
    + +

    FT_INCREMENTAL_H

    +
    #define FT_INCREMENTAL_H  <freetype/ftincrem.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which performs incremental glyph loading.

    +
    + +

    FT_GASP_H

    +
    #define FT_GASP_H  <freetype/ftgasp.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which returns entries from the TrueType GASP table.

    +
    + +

    FT_ADVANCES_H

    +
    #define FT_ADVANCES_H  <freetype/ftadvanc.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which returns individual and ranged glyph advances.

    +
    + +

    FT_COLOR_H

    +
    #define FT_COLOR_H  <freetype/ftcolor.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which handles the OpenType ‘CPAL’ table.

    +
    + +

    FT_OTSVG_H

    +
    #define FT_OTSVG_H  <freetype/otsvg.h>
+
    + +

    A macro used in #include statements to name the file containing the FreeType 2 API which handles the OpenType ‘SVG ’ glyphs.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-header_inclusion.html b/modules/freetype2/docs/reference/ft2-header_inclusion.html new file mode 100644 index 0000000000..3b908a05fe --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-header_inclusion.html @@ -0,0 +1,1362 @@ + + + + + + + + + + + + + + + + + + + + + FreeType's header inclusion scheme - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
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    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » General Remarks » FreeType's header inclusion scheme

    +
    +

    FreeType's header inclusion scheme

    +

    Synopsis

    +

    To be as flexible as possible (and for historical reasons), you must load file ft2build.h first before other header files, for example +

      #include <ft2build.h>
+
+  #include <freetype/freetype.h>
+  #include <freetype/ftoutln.h>
+

    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-incremental.html b/modules/freetype2/docs/reference/ft2-incremental.html new file mode 100644 index 0000000000..38b32c3130 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-incremental.html @@ -0,0 +1,1701 @@ + + + + + + + + + + + + + + + + + + + + + Incremental Loading - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
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    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Miscellaneous » Incremental Loading

    +
    +

    Incremental Loading

    +

    Synopsis

    +

    This section contains various functions used to perform so-called ‘incremental’ glyph loading. This is a mode where all glyphs loaded from a given FT_Face are provided by the client application.

    +

    Apart from that, all other tables are loaded normally from the font file. This mode is useful when FreeType is used within another engine, e.g., a PostScript Imaging Processor.

    +

    To enable this mode, you must use FT_Open_Face, passing an FT_Parameter with the FT_PARAM_TAG_INCREMENTAL tag and an FT_Incremental_Interface value. See the comments for FT_Incremental_InterfaceRec for an example.

    +

    FT_Incremental

    +

    Defined in FT_INCREMENTAL_H (freetype/ftincrem.h).

    +
      typedef struct FT_IncrementalRec_*  FT_Incremental;
+
    + +

    An opaque type describing a user-provided object used to implement ‘incremental’ glyph loading within FreeType. This is used to support embedded fonts in certain environments (e.g., PostScript interpreters), where the glyph data isn't in the font file, or must be overridden by different values.

    +

    note

    + +

    It is up to client applications to create and implement FT_Incremental objects, as long as they provide implementations for the methods FT_Incremental_GetGlyphDataFunc, FT_Incremental_FreeGlyphDataFunc and FT_Incremental_GetGlyphMetricsFunc.

    +

    See the description of FT_Incremental_InterfaceRec to understand how to use incremental objects with FreeType.

    +
    + +

    FT_Incremental_MetricsRec

    +

    Defined in FT_INCREMENTAL_H (freetype/ftincrem.h).

    +
      typedef struct  FT_Incremental_MetricsRec_
+  {
+    FT_Long  bearing_x;
+    FT_Long  bearing_y;
+    FT_Long  advance;
+    FT_Long  advance_v;     /* since 2.3.12 */
+
+  } FT_Incremental_MetricsRec;
+
    + +

    A small structure used to contain the basic glyph metrics returned by the FT_Incremental_GetGlyphMetricsFunc method.

    +

    fields

    + + + + + +
    bearing_x +

    Left bearing, in font units.

    +
    bearing_y +

    Top bearing, in font units.

    +
    advance +

    Horizontal component of glyph advance, in font units.

    +
    advance_v +

    Vertical component of glyph advance, in font units.

    +
    + +

    note

    + +

    These correspond to horizontal or vertical metrics depending on the value of the vertical argument to the function FT_Incremental_GetGlyphMetricsFunc.

    +
    + +

    FT_Incremental_Metrics

    +

    Defined in FT_INCREMENTAL_H (freetype/ftincrem.h).

    +
       typedef struct FT_Incremental_MetricsRec_*  FT_Incremental_Metrics;
+
    + +

    A handle to an FT_Incremental_MetricsRec structure.

    +
    + +

    FT_Incremental_GetGlyphDataFunc

    +

    Defined in FT_INCREMENTAL_H (freetype/ftincrem.h).

    +
      typedef FT_Error
+  (*FT_Incremental_GetGlyphDataFunc)( FT_Incremental  incremental,
+                                      FT_UInt         glyph_index,
+                                      FT_Data*        adata );
+
    + +

    A function called by FreeType to access a given glyph's data bytes during FT_Load_Glyph or FT_Load_Char if incremental loading is enabled.

    +

    Note that the format of the glyph's data bytes depends on the font file format. For TrueType, it must correspond to the raw bytes within the ‘glyf’ table. For PostScript formats, it must correspond to the unencrypted charstring bytes, without any lenIV header. It is undefined for any other format.

    +

    input

    + + + +
    incremental +

    Handle to an opaque FT_Incremental handle provided by the client application.

    +
    glyph_index +

    Index of relevant glyph.

    +
    + +

    output

    + + +
    adata +

    A structure describing the returned glyph data bytes (which will be accessed as a read-only byte block).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If this function returns successfully the method FT_Incremental_FreeGlyphDataFunc will be called later to release the data bytes.

    +

    Nested calls to FT_Incremental_GetGlyphDataFunc can happen for compound glyphs.

    +
    + +

    FT_Incremental_FreeGlyphDataFunc

    +

    Defined in FT_INCREMENTAL_H (freetype/ftincrem.h).

    +
      typedef void
+  (*FT_Incremental_FreeGlyphDataFunc)( FT_Incremental  incremental,
+                                       FT_Data*        data );
+
    + +

    A function used to release the glyph data bytes returned by a successful call to FT_Incremental_GetGlyphDataFunc.

    +

    input

    + + + +
    incremental +

    A handle to an opaque FT_Incremental handle provided by the client application.

    +
    data +

    A structure describing the glyph data bytes (which will be accessed as a read-only byte block).

    +
    + +
    + +

    FT_Incremental_GetGlyphMetricsFunc

    +

    Defined in FT_INCREMENTAL_H (freetype/ftincrem.h).

    +
      typedef FT_Error
+  (*FT_Incremental_GetGlyphMetricsFunc)
+                      ( FT_Incremental              incremental,
+                        FT_UInt                     glyph_index,
+                        FT_Bool                     vertical,
+                        FT_Incremental_MetricsRec  *ametrics );
+
    + +

    A function used to retrieve the basic metrics of a given glyph index before accessing its data. This allows for handling font types such as PCL XL Format 1, Class 2 downloaded TrueType fonts, where the glyph metrics (hmtx and vmtx tables) are permitted to be omitted from the font, and the relevant metrics included in the header of the glyph outline data. Importantly, this is not intended to allow custom glyph metrics (for example, Postscript Metrics dictionaries), because that conflicts with the requirements of outline hinting. Such custom metrics must be handled separately, by the calling application.

    +

    input

    + + + + + +
    incremental +

    A handle to an opaque FT_Incremental handle provided by the client application.

    +
    glyph_index +

    Index of relevant glyph.

    +
    vertical +

    If true, return vertical metrics.

    +
    ametrics +

    This parameter is used for both input and output. The original glyph metrics, if any, in font units. If metrics are not available all the values must be set to zero.

    +
    + +

    output

    + + +
    ametrics +

    The glyph metrics in font units.

    +
    + +
    + +

    FT_Incremental_FuncsRec

    +

    Defined in FT_INCREMENTAL_H (freetype/ftincrem.h).

    +
      typedef struct  FT_Incremental_FuncsRec_
+  {
+    FT_Incremental_GetGlyphDataFunc     get_glyph_data;
+    FT_Incremental_FreeGlyphDataFunc    free_glyph_data;
+    FT_Incremental_GetGlyphMetricsFunc  get_glyph_metrics;
+
+  } FT_Incremental_FuncsRec;
+
    + +

    A table of functions for accessing fonts that load data incrementally. Used in FT_Incremental_InterfaceRec.

    +

    fields

    + + + + +
    get_glyph_data +

    The function to get glyph data. Must not be null.

    +
    free_glyph_data +

    The function to release glyph data. Must not be null.

    +
    get_glyph_metrics +

    The function to get glyph metrics. May be null if the font does not require it.

    +
    + +
    + +

    FT_Incremental_InterfaceRec

    +

    Defined in FT_INCREMENTAL_H (freetype/ftincrem.h).

    +
      typedef struct  FT_Incremental_InterfaceRec_
+  {
+    const FT_Incremental_FuncsRec*  funcs;
+    FT_Incremental                  object;
+
+  } FT_Incremental_InterfaceRec;
+
    + +

    A structure to be used with FT_Open_Face to indicate that the user wants to support incremental glyph loading. You should use it with FT_PARAM_TAG_INCREMENTAL as in the following example: +

      FT_Incremental_InterfaceRec  inc_int;
+  FT_Parameter                 parameter;
+  FT_Open_Args                 open_args;
+
+
+  // set up incremental descriptor
+  inc_int.funcs  = my_funcs;
+  inc_int.object = my_object;
+
+  // set up optional parameter
+  parameter.tag  = FT_PARAM_TAG_INCREMENTAL;
+  parameter.data = &inc_int;
+
+  // set up FT_Open_Args structure
+  open_args.flags      = FT_OPEN_PATHNAME | FT_OPEN_PARAMS;
+  open_args.pathname   = my_font_pathname;
+  open_args.num_params = 1;
+  open_args.params     = &parameter; // we use one optional argument
+
+  // open the font
+  error = FT_Open_Face( library, &open_args, index, &face );
+  ...
+

    +
    + +

    FT_Incremental_Interface

    +

    Defined in FT_INCREMENTAL_H (freetype/ftincrem.h).

    +
      typedef FT_Incremental_InterfaceRec*   FT_Incremental_Interface;
+
    + +

    A pointer to an FT_Incremental_InterfaceRec structure.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-index.html b/modules/freetype2/docs/reference/ft2-index.html new file mode 100644 index 0000000000..f6699ac3ef --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-index.html @@ -0,0 +1,2424 @@ + + + + + + + + + + + + + + + + + + + + + Index - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
    + +
    + +
    + + + + +
    +
    + + + +
    +
    +
    + + + + +
    +
    +
    + + + +
    +
    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Global Index

    +
    +

    FreeType-2.13.2 API Reference

    +

    B

    +

    BDF_Property
    +BDF_PROPERTY_TYPE_ATOM
    +BDF_PROPERTY_TYPE_CARDINAL
    +BDF_PROPERTY_TYPE_INTEGER
    +BDF_PROPERTY_TYPE_NONE
    +BDF_PropertyRec
    +BDF_PropertyType

    +

    C

    +

    CID_FaceDict
    +CID_FaceDictRec
    +CID_FaceInfo
    +CID_FaceInfoRec
    +CID_FontDict
    +CID_Info

    +

    D

    +

    darkening-parameters
    +default-script

    +

    F

    +

    fallback-script
    +FREETYPE_MAJOR
    +FREETYPE_MINOR
    +FREETYPE_PATCH
    +FREETYPE_XXX
    +FT_Activate_Size
    +FT_Add_Default_Modules
    +FT_Add_Module
    +FT_ADVANCE_FLAG_FAST_ONLY
    +FT_ADVANCES_H
    +FT_Affine23
    +FT_Alloc_Func
    +FT_Angle
    +FT_ANGLE_2PI
    +FT_Angle_Diff
    +FT_ANGLE_PI
    +FT_ANGLE_PI2
    +FT_ANGLE_PI4
    +FT_Atan2
    +FT_Attach_File
    +FT_Attach_Stream
    +FT_AUTOHINTER_H
    +FT_AUTOHINTER_SCRIPT_CJK
    +FT_AUTOHINTER_SCRIPT_INDIC
    +FT_AUTOHINTER_SCRIPT_LATIN
    +FT_AUTOHINTER_SCRIPT_NONE
    +FT_AUTOHINTER_SCRIPT_XXX
    +FT_BBox
    +FT_BBOX_H
    +FT_BDF_H
    +FT_Bitmap
    +FT_Bitmap_Blend
    +FT_Bitmap_Convert
    +FT_Bitmap_Copy
    +FT_Bitmap_Done
    +FT_Bitmap_Embolden
    +FT_BITMAP_H
    +FT_Bitmap_Init
    +FT_Bitmap_Size
    +FT_BitmapGlyph
    +FT_BitmapGlyphRec
    +FT_Bool
    +FT_Byte
    +FT_Bytes
    +FT_BZIP2_H
    +FT_CACHE_H
    +FT_CeilFix
    +FT_CFF_DRIVER_H
    +FT_Char
    +FT_CharMap
    +FT_CharMapRec
    +FT_CID_H
    +FT_ClassicKern_Free
    +FT_ClassicKern_Validate
    +FT_ClipBox
    +FT_Color
    +FT_COLOR_H
    +FT_COLOR_INCLUDE_ROOT_TRANSFORM
    +FT_COLOR_NO_ROOT_TRANSFORM
    +FT_Color_Root_Transform
    +FT_ColorIndex
    +FT_ColorLine
    +FT_ColorStop
    +FT_ColorStopIterator
    +FT_COLR_Paint
    +FT_Composite_Mode
    +FT_CONFIG_CONFIG_H
    +FT_CONFIG_MODULES_H
    +FT_CONFIG_OPTIONS_H
    +FT_CONFIG_STANDARD_LIBRARY_H
    +FT_Cos
    +FT_Custom_Log_Handler
    +FT_Data
    +FT_DEBUG_HOOK_TRUETYPE
    +FT_DEBUG_HOOK_XXX
    +FT_DebugHook_Func
    +FT_DivFix
    +FT_Done_Face
    +FT_Done_FreeType
    +FT_Done_Glyph
    +FT_Done_Library
    +FT_Done_MM_Var
    +FT_Done_Size
    +FT_Driver
    +FT_DRIVER_H
    +FT_ENC_TAG
    +FT_Encoding
    +FT_ENCODING_ADOBE_CUSTOM
    +FT_ENCODING_ADOBE_EXPERT
    +FT_ENCODING_ADOBE_LATIN_1
    +FT_ENCODING_ADOBE_STANDARD
    +FT_ENCODING_APPLE_ROMAN
    +FT_ENCODING_BIG5
    +FT_ENCODING_JOHAB
    +FT_ENCODING_MS_BIG5
    +FT_ENCODING_MS_GB2312
    +FT_ENCODING_MS_JOHAB
    +FT_ENCODING_MS_SJIS
    +FT_ENCODING_MS_SYMBOL
    +FT_ENCODING_MS_WANSUNG
    +FT_ENCODING_NONE
    +FT_ENCODING_OLD_LATIN_2
    +FT_ENCODING_PRC
    +FT_ENCODING_SJIS
    +FT_ENCODING_UNICODE
    +FT_ENCODING_WANSUNG
    +FT_Err_XXX
    +FT_Error
    +FT_Error_String
    +FT_ERRORS_H
    +FT_F26Dot6
    +FT_F2Dot14
    +FT_Face
    +FT_Face_CheckTrueTypePatents
    +FT_FACE_DRIVER_NAME
    +FT_FACE_FLAG_CID_KEYED
    +FT_FACE_FLAG_COLOR
    +FT_FACE_FLAG_EXTERNAL_STREAM
    +FT_FACE_FLAG_FAST_GLYPHS
    +FT_FACE_FLAG_FIXED_SIZES
    +FT_FACE_FLAG_FIXED_WIDTH
    +FT_FACE_FLAG_GLYPH_NAMES
    +FT_FACE_FLAG_HINTER
    +FT_FACE_FLAG_HORIZONTAL
    +FT_FACE_FLAG_KERNING
    +FT_FACE_FLAG_MULTIPLE_MASTERS
    +FT_FACE_FLAG_SBIX
    +FT_FACE_FLAG_SBIX_OVERLAY
    +FT_FACE_FLAG_SCALABLE
    +FT_FACE_FLAG_SFNT
    +FT_FACE_FLAG_SVG
    +FT_FACE_FLAG_TRICKY
    +FT_FACE_FLAG_VARIATION
    +FT_FACE_FLAG_VERTICAL
    +FT_FACE_FLAG_XXX
    +FT_Face_GetCharsOfVariant
    +FT_Face_GetCharVariantIndex
    +FT_Face_GetCharVariantIsDefault
    +FT_Face_GetVariantSelectors
    +FT_Face_GetVariantsOfChar
    +FT_Face_Internal
    +FT_Face_Properties
    +FT_Face_SetUnpatentedHinting
    +FT_FaceRec
    +FT_Fixed
    +FT_FloorFix
    +FT_FONT_FORMATS_H
    +FT_Free_Func
    +FT_FREETYPE_H
    +FT_FSTYPE_BITMAP_EMBEDDING_ONLY
    +FT_FSTYPE_EDITABLE_EMBEDDING
    +FT_FSTYPE_INSTALLABLE_EMBEDDING
    +FT_FSTYPE_NO_SUBSETTING
    +FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING
    +FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING
    +FT_FSTYPE_XXX
    +FT_FWord
    +FT_GASP_DO_GRAY
    +FT_GASP_DO_GRIDFIT
    +FT_GASP_H
    +FT_GASP_NO_TABLE
    +FT_GASP_SYMMETRIC_GRIDFIT
    +FT_GASP_SYMMETRIC_SMOOTHING
    +FT_GASP_XXX
    +FT_Generic
    +FT_Generic_Finalizer
    +FT_Get_Advance
    +FT_Get_Advances
    +FT_Get_BDF_Charset_ID
    +FT_Get_BDF_Property
    +FT_Get_Char_Index
    +FT_Get_Charmap_Index
    +FT_Get_CID_From_Glyph_Index
    +FT_Get_CID_Is_Internally_CID_Keyed
    +FT_Get_CID_Registry_Ordering_Supplement
    +FT_Get_CMap_Format
    +FT_Get_CMap_Language_ID
    +FT_Get_Color_Glyph_ClipBox
    +FT_Get_Color_Glyph_Layer
    +FT_Get_Color_Glyph_Paint
    +FT_Get_Colorline_Stops
    +FT_Get_Default_Named_Instance
    +FT_Get_First_Char
    +FT_Get_Font_Format
    +FT_Get_FSType_Flags
    +FT_Get_Gasp
    +FT_Get_Glyph
    +FT_Get_Glyph_Name
    +FT_Get_Kerning
    +FT_Get_MM_Blend_Coordinates
    +FT_Get_MM_Var
    +FT_Get_MM_WeightVector
    +FT_Get_Module
    +FT_Get_Multi_Master
    +FT_Get_Name_Index
    +FT_Get_Next_Char
    +FT_Get_Paint
    +FT_Get_Paint_Layers
    +FT_Get_PFR_Advance
    +FT_Get_PFR_Kerning
    +FT_Get_PFR_Metrics
    +FT_Get_Postscript_Name
    +FT_Get_PS_Font_Info
    +FT_Get_PS_Font_Private
    +FT_Get_PS_Font_Value
    +FT_Get_Renderer
    +FT_Get_Sfnt_LangTag
    +FT_Get_Sfnt_Name
    +FT_Get_Sfnt_Name_Count
    +FT_Get_Sfnt_Table
    +FT_Get_SubGlyph_Info
    +FT_Get_Track_Kerning
    +FT_Get_Transform
    +FT_Get_TrueType_Engine_Type
    +FT_Get_Var_Axis_Flags
    +FT_Get_Var_Blend_Coordinates
    +FT_Get_Var_Design_Coordinates
    +FT_Get_WinFNT_Header
    +FT_GetFile_From_Mac_ATS_Name
    +FT_GetFile_From_Mac_Name
    +FT_GetFilePath_From_Mac_ATS_Name
    +FT_Glyph
    +FT_GLYPH_BBOX_GRIDFIT
    +FT_Glyph_BBox_Mode
    +FT_GLYPH_BBOX_PIXELS
    +FT_GLYPH_BBOX_SUBPIXELS
    +FT_GLYPH_BBOX_TRUNCATE
    +FT_GLYPH_BBOX_UNSCALED
    +FT_Glyph_Copy
    +FT_Glyph_Format
    +FT_GLYPH_FORMAT_BITMAP
    +FT_GLYPH_FORMAT_COMPOSITE
    +FT_GLYPH_FORMAT_NONE
    +FT_GLYPH_FORMAT_OUTLINE
    +FT_GLYPH_FORMAT_PLOTTER
    +FT_GLYPH_FORMAT_SVG
    +FT_Glyph_Get_CBox
    +FT_GLYPH_H
    +FT_Glyph_Metrics
    +FT_Glyph_Stroke
    +FT_Glyph_StrokeBorder
    +FT_Glyph_To_Bitmap
    +FT_Glyph_Transform
    +FT_GlyphRec
    +FT_GlyphSlot
    +FT_GlyphSlot_Own_Bitmap
    +FT_GlyphSlotRec
    +FT_GX_VALIDATE_H
    +FT_GZIP_H
    +FT_Gzip_Uncompress
    +FT_HAS_COLOR
    +FT_HAS_FAST_GLYPHS
    +FT_HAS_FIXED_SIZES
    +FT_HAS_GLYPH_NAMES
    +FT_HAS_HORIZONTAL
    +FT_HAS_KERNING
    +FT_HAS_MULTIPLE_MASTERS
    +FT_Has_PS_Glyph_Names
    +FT_HAS_SBIX
    +FT_HAS_SBIX_OVERLAY
    +FT_HAS_SVG
    +FT_HAS_VERTICAL
    +FT_HINTING_ADOBE
    +FT_HINTING_FREETYPE
    +FT_HINTING_XXX
    +FT_IMAGE_H
    +FT_IMAGE_TAG
    +FT_Incremental
    +FT_Incremental_FreeGlyphDataFunc
    +FT_Incremental_FuncsRec
    +FT_Incremental_GetGlyphDataFunc
    +FT_Incremental_GetGlyphMetricsFunc
    +FT_INCREMENTAL_H
    +FT_Incremental_Interface
    +FT_Incremental_InterfaceRec
    +FT_Incremental_Metrics
    +FT_Incremental_MetricsRec
    +FT_Init_FreeType
    +FT_Int
    +FT_Int16
    +FT_Int32
    +FT_Int64
    +FT_IS_CID_KEYED
    +FT_IS_FIXED_WIDTH
    +FT_IS_NAMED_INSTANCE
    +FT_IS_SCALABLE
    +FT_IS_SFNT
    +FT_IS_TRICKY
    +FT_IS_VARIATION
    +FT_KERNING_DEFAULT
    +FT_Kerning_Mode
    +FT_KERNING_UNFITTED
    +FT_KERNING_UNSCALED
    +FT_LayerIterator
    +FT_LCD_FILTER_DEFAULT
    +FT_LCD_FILTER_H
    +FT_LCD_FILTER_LEGACY
    +FT_LCD_FILTER_LEGACY1
    +FT_LCD_FILTER_LIGHT
    +FT_LCD_FILTER_NONE
    +FT_LcdFilter
    +FT_LcdFiveTapFilter
    +FT_Library
    +FT_Library_SetLcdFilter
    +FT_Library_SetLcdFilterWeights
    +FT_Library_SetLcdGeometry
    +FT_Library_Version
    +FT_List
    +FT_List_Add
    +FT_List_Destructor
    +FT_List_Finalize
    +FT_List_Find
    +FT_LIST_H
    +FT_List_Insert
    +FT_List_Iterate
    +FT_List_Iterator
    +FT_List_Remove
    +FT_List_Up
    +FT_ListNode
    +FT_ListNodeRec
    +FT_ListRec
    +FT_LOAD_BITMAP_METRICS_ONLY
    +FT_Load_Char
    +FT_LOAD_COLOR
    +FT_LOAD_COMPUTE_METRICS
    +FT_LOAD_CROP_BITMAP
    +FT_LOAD_DEFAULT
    +FT_LOAD_FORCE_AUTOHINT
    +FT_Load_Glyph
    +FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH
    +FT_LOAD_IGNORE_TRANSFORM
    +FT_LOAD_LINEAR_DESIGN
    +FT_LOAD_MONOCHROME
    +FT_LOAD_NO_AUTOHINT
    +FT_LOAD_NO_BITMAP
    +FT_LOAD_NO_HINTING
    +FT_LOAD_NO_RECURSE
    +FT_LOAD_NO_SCALE
    +FT_LOAD_NO_SVG
    +FT_LOAD_PEDANTIC
    +FT_LOAD_RENDER
    +FT_LOAD_SBITS_ONLY
    +FT_Load_Sfnt_Table
    +FT_LOAD_TARGET_LCD
    +FT_LOAD_TARGET_LCD_V
    +FT_LOAD_TARGET_LIGHT
    +FT_LOAD_TARGET_MODE
    +FT_LOAD_TARGET_MONO
    +FT_LOAD_TARGET_NORMAL
    +FT_LOAD_TARGET_XXX
    +FT_LOAD_VERTICAL_LAYOUT
    +FT_LOAD_XXX
    +FT_Long
    +FT_LZW_H
    +FT_MAC_H
    +FT_MAKE_TAG
    +FT_Matrix
    +FT_Matrix_Invert
    +FT_Matrix_Multiply
    +FT_Memory
    +FT_MemoryRec
    +FT_MM_Axis
    +FT_MM_Var
    +FT_Module
    +FT_Module_Class
    +FT_Module_Constructor
    +FT_Module_Destructor
    +FT_MODULE_ERRORS_H
    +FT_MODULE_H
    +FT_Module_Requester
    +FT_MulDiv
    +FT_MulFix
    +FT_Multi_Master
    +FT_MULTIPLE_MASTERS_H
    +FT_New_Face
    +FT_New_Face_From_FOND
    +FT_New_Face_From_FSRef
    +FT_New_Face_From_FSSpec
    +FT_New_Glyph
    +FT_New_Library
    +FT_New_Memory_Face
    +FT_New_Size
    +FT_Offset
    +FT_OpaquePaint
    +FT_Open_Args
    +FT_OPEN_DRIVER
    +FT_Open_Face
    +FT_OPEN_MEMORY
    +FT_OPEN_PARAMS
    +FT_OPEN_PATHNAME
    +FT_OPEN_STREAM
    +FT_OPEN_XXX
    +FT_OpenType_Free
    +FT_OpenType_Validate
    +FT_OPENTYPE_VALIDATE_H
    +FT_Orientation
    +FT_ORIENTATION_FILL_LEFT
    +FT_ORIENTATION_FILL_RIGHT
    +FT_ORIENTATION_NONE
    +FT_ORIENTATION_POSTSCRIPT
    +FT_ORIENTATION_TRUETYPE
    +FT_OTSVG_H
    +FT_Outline
    +FT_Outline_Check
    +FT_Outline_ConicToFunc
    +FT_Outline_Copy
    +FT_Outline_CubicToFunc
    +FT_Outline_Decompose
    +FT_Outline_Done
    +FT_Outline_Embolden
    +FT_Outline_EmboldenXY
    +FT_OUTLINE_EVEN_ODD_FILL
    +FT_Outline_Funcs
    +FT_Outline_Get_BBox
    +FT_Outline_Get_Bitmap
    +FT_Outline_Get_CBox
    +FT_Outline_Get_Orientation
    +FT_Outline_GetInsideBorder
    +FT_Outline_GetOutsideBorder
    +FT_OUTLINE_H
    +FT_OUTLINE_HIGH_PRECISION
    +FT_OUTLINE_IGNORE_DROPOUTS
    +FT_OUTLINE_INCLUDE_STUBS
    +FT_Outline_LineToFunc
    +FT_Outline_MoveToFunc
    +FT_Outline_New
    +FT_OUTLINE_NONE
    +FT_OUTLINE_OVERLAP
    +FT_OUTLINE_OWNER
    +FT_Outline_Render
    +FT_Outline_Reverse
    +FT_OUTLINE_REVERSE_FILL
    +FT_OUTLINE_SINGLE_PASS
    +FT_OUTLINE_SMART_DROPOUTS
    +FT_Outline_Transform
    +FT_Outline_Translate
    +FT_OUTLINE_XXX
    +FT_OutlineGlyph
    +FT_OutlineGlyphRec
    +FT_PaintColrGlyph
    +FT_PaintColrLayers
    +FT_PaintComposite
    +FT_PaintExtend
    +FT_PaintFormat
    +FT_PaintGlyph
    +FT_PaintLinearGradient
    +FT_PaintRadialGradient
    +FT_PaintRotate
    +FT_PaintScale
    +FT_PaintSkew
    +FT_PaintSolid
    +FT_PaintSweepGradient
    +FT_PaintTransform
    +FT_PaintTranslate
    +FT_Palette_Data
    +FT_Palette_Data_Get
    +FT_PALETTE_FOR_DARK_BACKGROUND
    +FT_PALETTE_FOR_LIGHT_BACKGROUND
    +FT_Palette_Select
    +FT_Palette_Set_Foreground_Color
    +FT_PALETTE_XXX
    +FT_PARAM_TAG_IGNORE_SBIX
    +FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
    +FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
    +FT_PARAM_TAG_INCREMENTAL
    +FT_PARAM_TAG_LCD_FILTER_WEIGHTS
    +FT_PARAM_TAG_RANDOM_SEED
    +FT_PARAM_TAG_STEM_DARKENING
    +FT_PARAM_TAG_UNPATENTED_HINTING
    +FT_Parameter
    +FT_PCF_DRIVER_H
    +FT_PFR_H
    +FT_Pixel_Mode
    +FT_PIXEL_MODE_BGRA
    +FT_PIXEL_MODE_GRAY
    +FT_PIXEL_MODE_GRAY2
    +FT_PIXEL_MODE_GRAY4
    +FT_PIXEL_MODE_LCD
    +FT_PIXEL_MODE_LCD_V
    +FT_PIXEL_MODE_MONO
    +FT_PIXEL_MODE_NONE
    +FT_Pointer
    +FT_Pos
    +FT_Prop_GlyphToScriptMap
    +FT_Prop_IncreaseXHeight
    +FT_Property_Get
    +FT_Property_Set
    +FT_PtrDist
    +FT_Raster
    +FT_Raster_BitSet_Func
    +FT_Raster_BitTest_Func
    +FT_Raster_DoneFunc
    +FT_RASTER_FLAG_AA
    +FT_RASTER_FLAG_CLIP
    +FT_RASTER_FLAG_DEFAULT
    +FT_RASTER_FLAG_DIRECT
    +FT_RASTER_FLAG_SDF
    +FT_RASTER_FLAG_XXX
    +FT_Raster_Funcs
    +FT_Raster_NewFunc
    +FT_Raster_Params
    +FT_Raster_RenderFunc
    +FT_Raster_ResetFunc
    +FT_Raster_SetModeFunc
    +FT_Realloc_Func
    +FT_Reference_Face
    +FT_Reference_Library
    +FT_Remove_Module
    +FT_Render_Glyph
    +FT_RENDER_H
    +FT_Render_Mode
    +FT_RENDER_MODE_LCD
    +FT_RENDER_MODE_LCD_V
    +FT_RENDER_MODE_LIGHT
    +FT_RENDER_MODE_MONO
    +FT_RENDER_MODE_NORMAL
    +FT_RENDER_MODE_SDF
    +FT_Renderer
    +FT_Renderer_Class
    +FT_Request_Size
    +FT_RoundFix
    +FT_Select_Charmap
    +FT_Select_Size
    +FT_Set_Char_Size
    +FT_Set_Charmap
    +FT_Set_Debug_Hook
    +FT_Set_Default_Log_Handler
    +FT_Set_Default_Properties
    +FT_Set_Log_Handler
    +FT_Set_MM_Blend_Coordinates
    +FT_Set_MM_Design_Coordinates
    +FT_Set_MM_WeightVector
    +FT_Set_Named_Instance
    +FT_Set_Pixel_Sizes
    +FT_Set_Renderer
    +FT_Set_Transform
    +FT_Set_Var_Blend_Coordinates
    +FT_Set_Var_Design_Coordinates
    +FT_SFNT_HEAD
    +FT_SFNT_HHEA
    +FT_SFNT_MAXP
    +FT_SFNT_NAMES_H
    +FT_SFNT_OS2
    +FT_SFNT_PCLT
    +FT_SFNT_POST
    +FT_Sfnt_Table_Info
    +FT_Sfnt_Tag
    +FT_SFNT_VHEA
    +FT_SfntLangTag
    +FT_SfntName
    +FT_Short
    +FT_Sin
    +FT_Size
    +FT_Size_Internal
    +FT_Size_Metrics
    +FT_Size_Request
    +FT_Size_Request_Type
    +FT_SIZE_REQUEST_TYPE_BBOX
    +FT_SIZE_REQUEST_TYPE_CELL
    +FT_SIZE_REQUEST_TYPE_NOMINAL
    +FT_SIZE_REQUEST_TYPE_REAL_DIM
    +FT_SIZE_REQUEST_TYPE_SCALES
    +FT_Size_RequestRec
    +FT_SizeRec
    +FT_SIZES_H
    +FT_Slot_Internal
    +FT_Span
    +FT_SpanFunc
    +FT_Stream
    +FT_Stream_CloseFunc
    +FT_Stream_IoFunc
    +FT_Stream_OpenBzip2
    +FT_Stream_OpenGzip
    +FT_Stream_OpenLZW
    +FT_StreamDesc
    +FT_StreamRec
    +FT_String
    +FT_Stroker
    +FT_Stroker_BeginSubPath
    +FT_STROKER_BORDER_LEFT
    +FT_STROKER_BORDER_RIGHT
    +FT_Stroker_ConicTo
    +FT_Stroker_CubicTo
    +FT_Stroker_Done
    +FT_Stroker_EndSubPath
    +FT_Stroker_Export
    +FT_Stroker_ExportBorder
    +FT_Stroker_GetBorderCounts
    +FT_Stroker_GetCounts
    +FT_STROKER_H
    +FT_Stroker_LineCap
    +FT_STROKER_LINECAP_BUTT
    +FT_STROKER_LINECAP_ROUND
    +FT_STROKER_LINECAP_SQUARE
    +FT_Stroker_LineJoin
    +FT_STROKER_LINEJOIN_BEVEL
    +FT_STROKER_LINEJOIN_MITER
    +FT_STROKER_LINEJOIN_MITER_FIXED
    +FT_STROKER_LINEJOIN_MITER_VARIABLE
    +FT_STROKER_LINEJOIN_ROUND
    +FT_Stroker_LineTo
    +FT_Stroker_New
    +FT_Stroker_ParseOutline
    +FT_Stroker_Rewind
    +FT_Stroker_Set
    +FT_StrokerBorder
    +FT_STYLE_FLAG_BOLD
    +FT_STYLE_FLAG_ITALIC
    +FT_STYLE_FLAG_XXX
    +FT_SubGlyph
    +FT_SUBGLYPH_FLAG_2X2
    +FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS
    +FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES
    +FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID
    +FT_SUBGLYPH_FLAG_SCALE
    +FT_SUBGLYPH_FLAG_USE_MY_METRICS
    +FT_SUBGLYPH_FLAG_XXX
    +FT_SUBGLYPH_FLAG_XY_SCALE
    +FT_SVG_Document
    +FT_SVG_DocumentRec
    +FT_SvgGlyph
    +FT_SvgGlyphRec
    +FT_SYNTHESIS_H
    +FT_SYSTEM_H
    +FT_Tag
    +FT_Tan
    +FT_Trace_Set_Default_Level
    +FT_Trace_Set_Level
    +FT_TRIGONOMETRY_H
    +FT_TRUETYPE_DRIVER_H
    +FT_TRUETYPE_ENGINE_TYPE_NONE
    +FT_TRUETYPE_ENGINE_TYPE_PATENTED
    +FT_TRUETYPE_ENGINE_TYPE_UNPATENTED
    +FT_TRUETYPE_IDS_H
    +FT_TRUETYPE_TABLES_H
    +FT_TRUETYPE_TAGS_H
    +FT_TrueTypeEngineType
    +FT_TrueTypeGX_Free
    +FT_TrueTypeGX_Validate
    +FT_TYPE1_TABLES_H
    +FT_TYPES_H
    +FT_UFWord
    +FT_UInt
    +FT_UInt16
    +FT_UInt32
    +FT_UInt64
    +FT_ULong
    +FT_UnitVector
    +FT_UShort
    +FT_VALIDATE_APPLE
    +FT_VALIDATE_BASE
    +FT_VALIDATE_bsln
    +FT_VALIDATE_CKERN
    +FT_VALIDATE_CKERNXXX
    +FT_VALIDATE_feat
    +FT_VALIDATE_GDEF
    +FT_VALIDATE_GPOS
    +FT_VALIDATE_GSUB
    +FT_VALIDATE_GX
    +FT_VALIDATE_GX_LENGTH
    +FT_VALIDATE_GXXXX
    +FT_VALIDATE_JSTF
    +FT_VALIDATE_just
    +FT_VALIDATE_kern
    +FT_VALIDATE_lcar
    +FT_VALIDATE_MATH
    +FT_VALIDATE_mort
    +FT_VALIDATE_morx
    +FT_VALIDATE_MS
    +FT_VALIDATE_opbd
    +FT_VALIDATE_OT
    +FT_VALIDATE_OTXXX
    +FT_VALIDATE_prop
    +FT_VALIDATE_trak
    +FT_Var_Axis
    +FT_VAR_AXIS_FLAG_HIDDEN
    +FT_VAR_AXIS_FLAG_XXX
    +FT_Var_Named_Style
    +FT_Vector
    +FT_Vector_From_Polar
    +FT_Vector_Length
    +FT_Vector_Polarize
    +FT_Vector_Rotate
    +FT_Vector_Transform
    +FT_Vector_Unit
    +FT_WinFNT_Header
    +FT_WinFNT_HeaderRec
    +FT_WinFNT_ID_CP1250
    +FT_WinFNT_ID_CP1251
    +FT_WinFNT_ID_CP1252
    +FT_WinFNT_ID_CP1253
    +FT_WinFNT_ID_CP1254
    +FT_WinFNT_ID_CP1255
    +FT_WinFNT_ID_CP1256
    +FT_WinFNT_ID_CP1257
    +FT_WinFNT_ID_CP1258
    +FT_WinFNT_ID_CP1361
    +FT_WinFNT_ID_CP874
    +FT_WinFNT_ID_CP932
    +FT_WinFNT_ID_CP936
    +FT_WinFNT_ID_CP949
    +FT_WinFNT_ID_CP950
    +FT_WinFNT_ID_DEFAULT
    +FT_WinFNT_ID_MAC
    +FT_WinFNT_ID_OEM
    +FT_WinFNT_ID_SYMBOL
    +FT_WinFNT_ID_XXX
    +FT_WINFONTS_H
    +FTC_CMapCache
    +FTC_CMapCache_Lookup
    +FTC_CMapCache_New
    +FTC_Face_Requester
    +FTC_FaceID
    +FTC_ImageCache
    +FTC_ImageCache_Lookup
    +FTC_ImageCache_LookupScaler
    +FTC_ImageCache_New
    +FTC_ImageType
    +FTC_ImageTypeRec
    +FTC_Manager
    +FTC_Manager_Done
    +FTC_Manager_LookupFace
    +FTC_Manager_LookupSize
    +FTC_Manager_New
    +FTC_Manager_RemoveFaceID
    +FTC_Manager_Reset
    +FTC_Node
    +FTC_Node_Unref
    +FTC_SBit
    +FTC_SBitCache
    +FTC_SBitCache_Lookup
    +FTC_SBitCache_LookupScaler
    +FTC_SBitCache_New
    +FTC_SBitRec
    +FTC_Scaler
    +FTC_ScalerRec

    +

    G

    +

    glyph-to-script-map

    +

    H

    +

    hinting-engine

    +

    I

    +

    increase-x-height
    +interpreter-version

    +

    N

    +

    no-long-family-names
    +no-stem-darkening

    +

    P

    +

    PS_DICT_BLUE_FUZZ
    +PS_DICT_BLUE_SCALE
    +PS_DICT_BLUE_SHIFT
    +PS_DICT_BLUE_VALUE
    +PS_DICT_CHAR_STRING
    +PS_DICT_CHAR_STRING_KEY
    +PS_DICT_ENCODING_ENTRY
    +PS_DICT_ENCODING_TYPE
    +PS_DICT_FAMILY_BLUE
    +PS_DICT_FAMILY_NAME
    +PS_DICT_FAMILY_OTHER_BLUE
    +PS_DICT_FONT_BBOX
    +PS_DICT_FONT_MATRIX
    +PS_DICT_FONT_NAME
    +PS_DICT_FONT_TYPE
    +PS_DICT_FORCE_BOLD
    +PS_DICT_FS_TYPE
    +PS_DICT_FULL_NAME
    +PS_DICT_IS_FIXED_PITCH
    +PS_DICT_ITALIC_ANGLE
    +PS_Dict_Keys
    +PS_DICT_LANGUAGE_GROUP
    +PS_DICT_LEN_IV
    +PS_DICT_MIN_FEATURE
    +PS_DICT_NOTICE
    +PS_DICT_NUM_BLUE_VALUES
    +PS_DICT_NUM_CHAR_STRINGS
    +PS_DICT_NUM_FAMILY_BLUES
    +PS_DICT_NUM_FAMILY_OTHER_BLUES
    +PS_DICT_NUM_OTHER_BLUES
    +PS_DICT_NUM_STEM_SNAP_H
    +PS_DICT_NUM_STEM_SNAP_V
    +PS_DICT_NUM_SUBRS
    +PS_DICT_OTHER_BLUE
    +PS_DICT_PAINT_TYPE
    +PS_DICT_PASSWORD
    +PS_DICT_RND_STEM_UP
    +PS_DICT_STD_HW
    +PS_DICT_STD_VW
    +PS_DICT_STEM_SNAP_H
    +PS_DICT_STEM_SNAP_V
    +PS_DICT_SUBR
    +PS_DICT_UNDERLINE_POSITION
    +PS_DICT_UNDERLINE_THICKNESS
    +PS_DICT_UNIQUE_ID
    +PS_DICT_VERSION
    +PS_DICT_WEIGHT
    +PS_FontInfo
    +PS_FontInfoRec
    +PS_Private
    +PS_PrivateRec

    +

    R

    +

    random-seed

    +

    S

    +

    svg-hooks
    +SVG_Lib_Free_Func
    +SVG_Lib_Init_Func
    +SVG_Lib_Preset_Slot_Func
    +SVG_Lib_Render_Func
    +SVG_RendererHooks

    +

    T

    +

    T1_BLEND_BLUE_SCALE
    +T1_BLEND_BLUE_SHIFT
    +T1_BLEND_BLUE_VALUES
    +T1_BLEND_FAMILY_BLUES
    +T1_BLEND_FAMILY_OTHER_BLUES
    +T1_Blend_Flags
    +T1_BLEND_FORCE_BOLD
    +T1_BLEND_ITALIC_ANGLE
    +T1_BLEND_OTHER_BLUES
    +T1_BLEND_STANDARD_HEIGHT
    +T1_BLEND_STANDARD_WIDTH
    +T1_BLEND_STEM_SNAP_HEIGHTS
    +T1_BLEND_STEM_SNAP_WIDTHS
    +T1_BLEND_UNDERLINE_POSITION
    +T1_BLEND_UNDERLINE_THICKNESS
    +T1_ENCODING_TYPE_ARRAY
    +T1_ENCODING_TYPE_EXPERT
    +T1_ENCODING_TYPE_ISOLATIN1
    +T1_ENCODING_TYPE_NONE
    +T1_ENCODING_TYPE_STANDARD
    +T1_EncodingType
    +T1_FontInfo
    +T1_Private
    +TT_ADOBE_ID_CUSTOM
    +TT_ADOBE_ID_EXPERT
    +TT_ADOBE_ID_LATIN_1
    +TT_ADOBE_ID_STANDARD
    +TT_ADOBE_ID_XXX
    +TT_APPLE_ID_DEFAULT
    +TT_APPLE_ID_FULL_UNICODE
    +TT_APPLE_ID_ISO_10646
    +TT_APPLE_ID_UNICODE_1_1
    +TT_APPLE_ID_UNICODE_2_0
    +TT_APPLE_ID_UNICODE_32
    +TT_APPLE_ID_VARIANT_SELECTOR
    +TT_APPLE_ID_XXX
    +TT_Header
    +TT_HoriHeader
    +TT_INTERPRETER_VERSION_35
    +TT_INTERPRETER_VERSION_38
    +TT_INTERPRETER_VERSION_40
    +TT_INTERPRETER_VERSION_XXX
    +TT_ISO_ID_10646
    +TT_ISO_ID_7BIT_ASCII
    +TT_ISO_ID_8859_1
    +TT_ISO_ID_XXX
    +TT_MAC_ID_XXX
    +TT_MAC_LANGID_XXX
    +TT_MaxProfile
    +TT_MS_ID_BIG_5
    +TT_MS_ID_JOHAB
    +TT_MS_ID_PRC
    +TT_MS_ID_SJIS
    +TT_MS_ID_SYMBOL_CS
    +TT_MS_ID_UCS_4
    +TT_MS_ID_UNICODE_CS
    +TT_MS_ID_WANSUNG
    +TT_MS_ID_XXX
    +TT_MS_LANGID_XXX
    +TT_NAME_ID_XXX
    +TT_OS2
    +TT_PCLT
    +TT_PLATFORM_ADOBE
    +TT_PLATFORM_APPLE_UNICODE
    +TT_PLATFORM_CUSTOM
    +TT_PLATFORM_ISO
    +TT_PLATFORM_MACINTOSH
    +TT_PLATFORM_MICROSOFT
    +TT_PLATFORM_XXX
    +TT_Postscript
    +TT_UCR_XXX
    +TT_VertHeader

    +

    W

    +

    warping

    +
    +
    generated on Fri Aug 25 18:54:11 2023 UTC
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    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-information_retrieval.html b/modules/freetype2/docs/reference/ft2-information_retrieval.html new file mode 100644 index 0000000000..36b6c68a5a --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-information_retrieval.html @@ -0,0 +1,1703 @@ + + + + + + + + + + + + + + + + + + + + + Information Retrieval - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + + +

    FreeType » Docs » Core API » Information Retrieval

    +
    +

    Information Retrieval

    +

    Synopsis

    +

    Functions to retrieve font and glyph information. Only some very basic data is covered; see also the chapter on the format-specific API for more.

    +

    FT_Get_Name_Index

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_UInt )
+  FT_Get_Name_Index( FT_Face           face,
+                     const FT_String*  glyph_name );
+
    + +

    Return the glyph index of a given glyph name. This only works for those faces where FT_HAS_GLYPH_NAMES returns true.

    +

    input

    + + + +
    face +

    A handle to the source face object.

    +
    glyph_name +

    The glyph name.

    +
    + +

    return

    + +

    The glyph index. 0 means ‘undefined character code’.

    +

    note

    + +

    Acceptable glyph names might come from the Adobe Glyph List. See FT_Get_Glyph_Name for the inverse functionality.

    +

    This function has limited capabilities if the config macro FT_CONFIG_OPTION_POSTSCRIPT_NAMES is not defined in ftoption.h: It then works only for fonts that actually embed glyph names (which many recent OpenType fonts do not).

    +
    + +

    FT_Get_Glyph_Name

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Glyph_Name( FT_Face     face,
+                     FT_UInt     glyph_index,
+                     FT_Pointer  buffer,
+                     FT_UInt     buffer_max );
+
    + +

    Retrieve the ASCII name of a given glyph in a face. This only works for those faces where FT_HAS_GLYPH_NAMES returns true.

    +

    input

    + + + + +
    face +

    A handle to a source face object.

    +
    glyph_index +

    The glyph index.

    +
    buffer_max +

    The maximum number of bytes available in the buffer.

    +
    + +

    output

    + + +
    buffer +

    A pointer to a target buffer where the name is copied to.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    An error is returned if the face doesn't provide glyph names or if the glyph index is invalid. In all cases of failure, the first byte of buffer is set to 0 to indicate an empty name.

    +

    The glyph name is truncated to fit within the buffer if it is too long. The returned string is always zero-terminated.

    +

    Be aware that FreeType reorders glyph indices internally so that glyph index 0 always corresponds to the ‘missing glyph’ (called ‘.notdef’).

    +

    This function has limited capabilities if the config macro FT_CONFIG_OPTION_POSTSCRIPT_NAMES is not defined in ftoption.h: It then works only for fonts that actually embed glyph names (which many recent OpenType fonts do not).

    +
    + +

    FT_Get_Postscript_Name

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( const char* )
+  FT_Get_Postscript_Name( FT_Face  face );
+
    + +

    Retrieve the ASCII PostScript name of a given face, if available. This only works with PostScript, TrueType, and OpenType fonts.

    +

    input

    + + +
    face +

    A handle to the source face object.

    +
    + +

    return

    + +

    A pointer to the face's PostScript name. NULL if unavailable.

    +

    note

    + +

    The returned pointer is owned by the face and is destroyed with it.

    +

    For variation fonts, this string changes if you select a different instance, and you have to call FT_Get_PostScript_Name again to retrieve it. FreeType follows Adobe TechNote #5902, ‘Generating PostScript Names for Fonts Using OpenType Font Variations’.

    +

    https://download.macromedia.com/pub/developer/opentype/tech-notes/5902.AdobePSNameGeneration.html

    +

    [Since 2.9] Special PostScript names for named instances are only returned if the named instance is set with FT_Set_Named_Instance (and the font has corresponding entries in its ‘fvar’ table or is the default named instance). If FT_IS_VARIATION returns true, the algorithmically derived PostScript name is provided, not looking up special entries for named instances.

    +
    + +

    FT_Get_FSType_Flags

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_UShort )
+  FT_Get_FSType_Flags( FT_Face  face );
+
    + +

    Return the fsType flags for a font.

    +

    input

    + + +
    face +

    A handle to the source face object.

    +
    + +

    return

    + +

    The fsType flags, see FT_FSTYPE_XXX.

    +

    note

    + +

    Use this function rather than directly reading the fs_type field in the PS_FontInfoRec structure, which is only guaranteed to return the correct results for Type 1 fonts.

    +

    since

    + +

    2.3.8

    +
    + +

    FT_FSTYPE_XXX

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_FSTYPE_INSTALLABLE_EMBEDDING         0x0000
+#define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING  0x0002
+#define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING   0x0004
+#define FT_FSTYPE_EDITABLE_EMBEDDING            0x0008
+#define FT_FSTYPE_NO_SUBSETTING                 0x0100
+#define FT_FSTYPE_BITMAP_EMBEDDING_ONLY         0x0200
+
    + +

    A list of bit flags used in the fsType field of the OS/2 table in a TrueType or OpenType font and the FSType entry in a PostScript font. These bit flags are returned by FT_Get_FSType_Flags; they inform client applications of embedding and subsetting restrictions associated with a font.

    +

    See https://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/FontPolicies.pdf for more details.

    +

    values

    + + + + + + + +
    FT_FSTYPE_INSTALLABLE_EMBEDDING +

    Fonts with no fsType bit set may be embedded and permanently installed on the remote system by an application.

    +
    FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING +

    Fonts that have only this bit set must not be modified, embedded or exchanged in any manner without first obtaining permission of the font software copyright owner.

    +
    FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING +

    The font may be embedded and temporarily loaded on the remote system. Documents containing Preview & Print fonts must be opened ‘read-only’; no edits can be applied to the document.

    +
    FT_FSTYPE_EDITABLE_EMBEDDING +

    The font may be embedded but must only be installed temporarily on other systems. In contrast to Preview & Print fonts, documents containing editable fonts may be opened for reading, editing is permitted, and changes may be saved.

    +
    FT_FSTYPE_NO_SUBSETTING +

    The font may not be subsetted prior to embedding.

    +
    FT_FSTYPE_BITMAP_EMBEDDING_ONLY +

    Only bitmaps contained in the font may be embedded; no outline data may be embedded. If there are no bitmaps available in the font, then the font is unembeddable.

    +
    + +

    note

    + +

    The flags are ORed together, thus more than a single value can be returned.

    +

    While the fsType flags can indicate that a font may be embedded, a license with the font vendor may be separately required to use the font in this way.

    +
    + +

    FT_Get_SubGlyph_Info

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_SubGlyph_Info( FT_GlyphSlot  glyph,
+                        FT_UInt       sub_index,
+                        FT_Int       *p_index,
+                        FT_UInt      *p_flags,
+                        FT_Int       *p_arg1,
+                        FT_Int       *p_arg2,
+                        FT_Matrix    *p_transform );
+
    + +

    Retrieve a description of a given subglyph. Only use it if glyph->format is FT_GLYPH_FORMAT_COMPOSITE; an error is returned otherwise.

    +

    input

    + + + +
    glyph +

    The source glyph slot.

    +
    sub_index +

    The index of the subglyph. Must be less than glyph->num_subglyphs.

    +
    + +

    output

    + + + + + + +
    p_index +

    The glyph index of the subglyph.

    +
    p_flags +

    The subglyph flags, see FT_SUBGLYPH_FLAG_XXX.

    +
    p_arg1 +

    The subglyph's first argument (if any).

    +
    p_arg2 +

    The subglyph's second argument (if any).

    +
    p_transform +

    The subglyph transformation (if any).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The values of *p_arg1, *p_arg2, and *p_transform must be interpreted depending on the flags returned in *p_flags. See the OpenType specification for details.

    +

    https://docs.microsoft.com/en-us/typography/opentype/spec/glyf#composite-glyph-description

    +
    + +

    FT_SUBGLYPH_FLAG_XXX

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS          1
+#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES      2
+#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID        4
+#define FT_SUBGLYPH_FLAG_SCALE                   8
+#define FT_SUBGLYPH_FLAG_XY_SCALE             0x40
+#define FT_SUBGLYPH_FLAG_2X2                  0x80
+#define FT_SUBGLYPH_FLAG_USE_MY_METRICS      0x200
+
    + +

    A list of constants describing subglyphs. Please refer to the ‘glyf’ table description in the OpenType specification for the meaning of the various flags (which get synthesized for non-OpenType subglyphs).

    +

    https://docs.microsoft.com/en-us/typography/opentype/spec/glyf#composite-glyph-description

    +

    values

    + + + + + + + + +
    FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS + +
    FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES + +
    FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID + +
    FT_SUBGLYPH_FLAG_SCALE + +
    FT_SUBGLYPH_FLAG_XY_SCALE + +
    FT_SUBGLYPH_FLAG_2X2 + +
    FT_SUBGLYPH_FLAG_USE_MY_METRICS + +
    + +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
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    FreeType » Docs » Extended API » Glyph Layer Management

    +
    +

    Glyph Layer Management

    +

    Synopsis

    +

    The functions described here allow access of colored glyph layer data in OpenType's ‘COLR’ tables.

    +

    FT_LayerIterator

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_LayerIterator_
+  {
+    FT_UInt   num_layers;
+    FT_UInt   layer;
+    FT_Byte*  p;
+
+  } FT_LayerIterator;
+
    + +

    This iterator object is needed for FT_Get_Color_Glyph_Layer.

    +

    fields

    + + + + +
    num_layers +

    The number of glyph layers for the requested glyph index. Will be set by FT_Get_Color_Glyph_Layer.

    +
    layer +

    The current layer. Will be set by FT_Get_Color_Glyph_Layer.

    +
    p +

    An opaque pointer into ‘COLR’ table data. The caller must set this to NULL before the first call of FT_Get_Color_Glyph_Layer.

    +
    + +
    + +

    FT_Get_Color_Glyph_Layer

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      FT_EXPORT( FT_Bool )
+  FT_Get_Color_Glyph_Layer( FT_Face            face,
+                            FT_UInt            base_glyph,
+                            FT_UInt           *aglyph_index,
+                            FT_UInt           *acolor_index,
+                            FT_LayerIterator*  iterator );
+
    + +

    This is an interface to the ‘COLR’ table in OpenType fonts to iteratively retrieve the colored glyph layers associated with the current glyph slot.

    +

    https://docs.microsoft.com/en-us/typography/opentype/spec/colr

    +

    The glyph layer data for a given glyph index, if present, provides an alternative, multi-color glyph representation: Instead of rendering the outline or bitmap with the given glyph index, glyphs with the indices and colors returned by this function are rendered layer by layer.

    +

    The returned elements are ordered in the z direction from bottom to top; the 'n'th element should be rendered with the associated palette color and blended on top of the already rendered layers (elements 0, 1, …, n-1).

    +

    input

    + + + +
    face +

    A handle to the parent face object.

    +
    base_glyph +

    The glyph index the colored glyph layers are associated with.

    +
    + +

    inout

    + + +
    iterator +

    An FT_LayerIterator object. For the first call you should set iterator->p to NULL. For all following calls, simply use the same object again.

    +
    + +

    output

    + + + +
    aglyph_index +

    The glyph index of the current layer.

    +
    acolor_index +

    The color index into the font face's color palette of the current layer. The value 0xFFFF is special; it doesn't reference a palette entry but indicates that the text foreground color should be used instead (to be set up by the application outside of FreeType).

    +

    The color palette can be retrieved with FT_Palette_Select.

    +
    + +

    return

    + +

    Value 1 if everything is OK. If there are no more layers (or if there are no layers at all), value 0 gets returned. In case of an error, value 0 is returned also.

    +

    note

    + +

    This function is necessary if you want to handle glyph layers by yourself. In particular, functions that operate with FT_GlyphRec objects (like FT_Get_Glyph or FT_Glyph_To_Bitmap) don't have access to this information.

    +

    Note that FT_Render_Glyph is able to handle colored glyph layers automatically if the FT_LOAD_COLOR flag is passed to a previous call to FT_Load_Glyph. [This is an experimental feature.]

    +

    example

    +
      FT_Color*         palette;
+  FT_LayerIterator  iterator;
+
+  FT_Bool  have_layers;
+  FT_UInt  layer_glyph_index;
+  FT_UInt  layer_color_index;
+
+
+  error = FT_Palette_Select( face, palette_index, &palette );
+  if ( error )
+    palette = NULL;
+
+  iterator.p  = NULL;
+  have_layers = FT_Get_Color_Glyph_Layer( face,
+                                          glyph_index,
+                                          &layer_glyph_index,
+                                          &layer_color_index,
+                                          &iterator );
+
+  if ( palette && have_layers )
+  {
+    do
+    {
+      FT_Color  layer_color;
+
+
+      if ( layer_color_index == 0xFFFF )
+        layer_color = text_foreground_color;
+      else
+        layer_color = palette[layer_color_index];
+
+      // Load and render glyph `layer_glyph_index', then
+      // blend resulting pixmap (using color `layer_color')
+      // with previously created pixmaps.
+
+    } while ( FT_Get_Color_Glyph_Layer( face,
+                                        glyph_index,
+                                        &layer_glyph_index,
+                                        &layer_color_index,
+                                        &iterator ) );
+  }
+
    +

    since

    + +

    2.10

    +
    + +

    FT_PaintFormat

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef enum  FT_PaintFormat_
+  {
+    FT_COLR_PAINTFORMAT_COLR_LAYERS     = 1,
+    FT_COLR_PAINTFORMAT_SOLID           = 2,
+    FT_COLR_PAINTFORMAT_LINEAR_GRADIENT = 4,
+    FT_COLR_PAINTFORMAT_RADIAL_GRADIENT = 6,
+    FT_COLR_PAINTFORMAT_SWEEP_GRADIENT  = 8,
+    FT_COLR_PAINTFORMAT_GLYPH           = 10,
+    FT_COLR_PAINTFORMAT_COLR_GLYPH      = 11,
+    FT_COLR_PAINTFORMAT_TRANSFORM       = 12,
+    FT_COLR_PAINTFORMAT_TRANSLATE       = 14,
+    FT_COLR_PAINTFORMAT_SCALE           = 16,
+    FT_COLR_PAINTFORMAT_ROTATE          = 24,
+    FT_COLR_PAINTFORMAT_SKEW            = 28,
+    FT_COLR_PAINTFORMAT_COMPOSITE       = 32,
+    FT_COLR_PAINT_FORMAT_MAX            = 33,
+    FT_COLR_PAINTFORMAT_UNSUPPORTED     = 255
+
+  } FT_PaintFormat;
+
    + +

    Enumeration describing the different paint format types of the v1 extensions to the ‘COLR’ table, see ‘https://github.com/googlefonts/colr-gradients-spec’.

    +

    The enumeration values loosely correspond with the format numbers of the specification: FreeType always returns a fully specified ‘Paint’ structure for the ‘Transform’, ‘Translate’, ‘Scale’, ‘Rotate’, and ‘Skew’ table types even though the specification has different formats depending on whether or not a center is specified, whether the scale is uniform in x and y direction or not, etc. Also, only non-variable format identifiers are listed in this enumeration; as soon as support for variable ‘COLR’ v1 fonts is implemented, interpolation is performed dependent on axis coordinates, which are configured on the FT_Face through FT_Set_Var_Design_Coordinates. This implies that always static, readily interpolated values are returned in the ‘Paint’ structures.

    +

    since

    + +

    2.13

    +
    + +

    FT_ColorStopIterator

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_ColorStopIterator_
+  {
+    FT_UInt  num_color_stops;
+    FT_UInt  current_color_stop;
+
+    FT_Byte*  p;
+
+    FT_Bool  read_variable;
+
+  } FT_ColorStopIterator;
+
    + +

    This iterator object is needed for FT_Get_Colorline_Stops. It keeps state while iterating over the stops of an FT_ColorLine, representing the ColorLine struct of the v1 extensions to ‘COLR’, see ‘https://github.com/googlefonts/colr-gradients-spec’. Do not manually modify fields of this iterator.

    +

    fields

    + + + + + +
    num_color_stops +

    The number of color stops for the requested glyph index. Set by FT_Get_Paint.

    +
    current_color_stop +

    The current color stop. Set by FT_Get_Colorline_Stops.

    +
    p +

    An opaque pointer into ‘COLR’ table data. Set by FT_Get_Paint. Updated by FT_Get_Colorline_Stops.

    +
    read_variable +

    A boolean keeping track of whether variable color lines are to be read. Set by FT_Get_Paint.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_ColorIndex

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_ColorIndex_
+  {
+    FT_UInt16   palette_index;
+    FT_F2Dot14  alpha;
+
+  } FT_ColorIndex;
+
    + +

    A structure representing a ColorIndex value of the ‘COLR’ v1 extensions, see ‘https://github.com/googlefonts/colr-gradients-spec’.

    +

    fields

    + + + +
    palette_index +

    The palette index into a ‘CPAL’ palette.

    +
    alpha +

    Alpha transparency value multiplied with the value from ‘CPAL’.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_ColorStop

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_ColorStop_
+  {
+    FT_Fixed       stop_offset;
+    FT_ColorIndex  color;
+
+  } FT_ColorStop;
+
    + +

    A structure representing a ColorStop value of the ‘COLR’ v1 extensions, see ‘https://github.com/googlefonts/colr-gradients-spec’.

    +

    fields

    + + + +
    stop_offset +

    The stop offset along the gradient, expressed as a 16.16 fixed-point coordinate.

    +
    color +

    The color information for this stop, see FT_ColorIndex.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintExtend

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef enum  FT_PaintExtend_
+  {
+    FT_COLR_PAINT_EXTEND_PAD     = 0,
+    FT_COLR_PAINT_EXTEND_REPEAT  = 1,
+    FT_COLR_PAINT_EXTEND_REFLECT = 2
+
+  } FT_PaintExtend;
+
    + +

    An enumeration representing the ‘Extend’ mode of the ‘COLR’ v1 extensions, see ‘https://github.com/googlefonts/colr-gradients-spec’. It describes how the gradient fill continues at the other boundaries.

    +

    since

    + +

    2.13

    +
    + +

    FT_ColorLine

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_ColorLine_
+  {
+    FT_PaintExtend        extend;
+    FT_ColorStopIterator  color_stop_iterator;
+
+  } FT_ColorLine;
+
    + +

    A structure representing a ColorLine value of the ‘COLR’ v1 extensions, see ‘https://github.com/googlefonts/colr-gradients-spec’. It describes a list of color stops along the defined gradient.

    +

    fields

    + + + +
    extend +

    The extend mode at the outer boundaries, see FT_PaintExtend.

    +
    color_stop_iterator +

    The FT_ColorStopIterator used to enumerate and retrieve the actual FT_ColorStop's.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_Affine23

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_Affine_23_
+  {
+    FT_Fixed  xx, xy, dx;
+    FT_Fixed  yx, yy, dy;
+
+  } FT_Affine23;
+
    + +

    A structure used to store a 2x3 matrix. Coefficients are in 16.16 fixed-point format. The computation performed is +

      x' = x*xx + y*xy + dx
+  y' = x*yx + y*yy + dy
+

    +

    fields

    + + + + + + + +
    xx +

    Matrix coefficient.

    +
    xy +

    Matrix coefficient.

    +
    dx +

    x translation.

    +
    yx +

    Matrix coefficient.

    +
    yy +

    Matrix coefficient.

    +
    dy +

    y translation.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_Composite_Mode

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef enum  FT_Composite_Mode_
+  {
+    FT_COLR_COMPOSITE_CLEAR          = 0,
+    FT_COLR_COMPOSITE_SRC            = 1,
+    FT_COLR_COMPOSITE_DEST           = 2,
+    FT_COLR_COMPOSITE_SRC_OVER       = 3,
+    FT_COLR_COMPOSITE_DEST_OVER      = 4,
+    FT_COLR_COMPOSITE_SRC_IN         = 5,
+    FT_COLR_COMPOSITE_DEST_IN        = 6,
+    FT_COLR_COMPOSITE_SRC_OUT        = 7,
+    FT_COLR_COMPOSITE_DEST_OUT       = 8,
+    FT_COLR_COMPOSITE_SRC_ATOP       = 9,
+    FT_COLR_COMPOSITE_DEST_ATOP      = 10,
+    FT_COLR_COMPOSITE_XOR            = 11,
+    FT_COLR_COMPOSITE_PLUS           = 12,
+    FT_COLR_COMPOSITE_SCREEN         = 13,
+    FT_COLR_COMPOSITE_OVERLAY        = 14,
+    FT_COLR_COMPOSITE_DARKEN         = 15,
+    FT_COLR_COMPOSITE_LIGHTEN        = 16,
+    FT_COLR_COMPOSITE_COLOR_DODGE    = 17,
+    FT_COLR_COMPOSITE_COLOR_BURN     = 18,
+    FT_COLR_COMPOSITE_HARD_LIGHT     = 19,
+    FT_COLR_COMPOSITE_SOFT_LIGHT     = 20,
+    FT_COLR_COMPOSITE_DIFFERENCE     = 21,
+    FT_COLR_COMPOSITE_EXCLUSION      = 22,
+    FT_COLR_COMPOSITE_MULTIPLY       = 23,
+    FT_COLR_COMPOSITE_HSL_HUE        = 24,
+    FT_COLR_COMPOSITE_HSL_SATURATION = 25,
+    FT_COLR_COMPOSITE_HSL_COLOR      = 26,
+    FT_COLR_COMPOSITE_HSL_LUMINOSITY = 27,
+    FT_COLR_COMPOSITE_MAX            = 28
+
+  } FT_Composite_Mode;
+
    + +

    An enumeration listing the ‘COLR’ v1 composite modes used in FT_PaintComposite. For more details on each paint mode, see ‘https://www.w3.org/TR/compositing-1/#porterduffcompositingoperators’.

    +

    since

    + +

    2.13

    +
    + +

    FT_OpaquePaint

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_Opaque_Paint_
+  {
+    FT_Byte*  p;
+    FT_Bool   insert_root_transform;
+  } FT_OpaquePaint;
+
    + +

    A structure representing an offset to a Paint value stored in any of the paint tables of a ‘COLR’ v1 font. Compare Offset<24> there. When ‘COLR’ v1 paint tables represented by FreeType objects such as FT_PaintColrLayers, FT_PaintComposite, or FT_PaintTransform reference downstream nested paint tables, we do not immediately retrieve them but encapsulate their location in this type. Use FT_Get_Paint to retrieve the actual FT_COLR_Paint object that describes the details of the respective paint table.

    +

    fields

    + + + +
    p +

    An internal offset to a Paint table, needs to be set to NULL before passing this struct as an argument to FT_Get_Paint.

    +
    insert_root_transform +

    An internal boolean to track whether an initial root transform is to be provided. Do not set this value.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintColrLayers

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintColrLayers_
+  {
+    FT_LayerIterator  layer_iterator;
+
+  } FT_PaintColrLayers;
+
    + +

    A structure representing a PaintColrLayers table of a ‘COLR’ v1 font. This table describes a set of layers that are to be composited with composite mode FT_COLR_COMPOSITE_SRC_OVER. The return value of this function is an FT_LayerIterator initialized so that it can be used with FT_Get_Paint_Layers to retrieve the FT_OpaquePaint objects as references to each layer.

    +

    fields

    + + +
    layer_iterator +

    The layer iterator that describes the layers of this paint.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintSolid

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintSolid_
+  {
+    FT_ColorIndex  color;
+
+  } FT_PaintSolid;
+
    + +

    A structure representing a PaintSolid value of the ‘COLR’ v1 extensions, see ‘https://github.com/googlefonts/colr-gradients-spec’. Using a PaintSolid value means that the glyph layer filled with this paint is solid-colored and does not contain a gradient.

    +

    fields

    + + +
    color +

    The color information for this solid paint, see FT_ColorIndex.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintLinearGradient

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintLinearGradient_
+  {
+    FT_ColorLine  colorline;
+
+    /* TODO: Potentially expose those as x0, y0 etc. */
+    FT_Vector  p0;
+    FT_Vector  p1;
+    FT_Vector  p2;
+
+  } FT_PaintLinearGradient;
+
    + +

    A structure representing a PaintLinearGradient value of the ‘COLR’ v1 extensions, see ‘https://github.com/googlefonts/colr-gradients-spec’. The glyph layer filled with this paint is drawn filled with a linear gradient.

    +

    fields

    + + + + + +
    colorline +

    The FT_ColorLine information for this paint, i.e., the list of color stops along the gradient.

    +
    p0 +

    The starting point of the gradient definition in font units represented as a 16.16 fixed-point FT_Vector.

    +
    p1 +

    The end point of the gradient definition in font units represented as a 16.16 fixed-point FT_Vector.

    +
    p2 +

    Optional point p2 to rotate the gradient in font units represented as a 16.16 fixed-point FT_Vector. Otherwise equal to p0.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintRadialGradient

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintRadialGradient_
+  {
+    FT_ColorLine  colorline;
+
+    FT_Vector  c0;
+    FT_Pos     r0;
+    FT_Vector  c1;
+    FT_Pos     r1;
+
+  } FT_PaintRadialGradient;
+
    + +

    A structure representing a PaintRadialGradient value of the ‘COLR’ v1 extensions, see ‘https://github.com/googlefonts/colr-gradients-spec’. The glyph layer filled with this paint is drawn filled with a radial gradient.

    +

    fields

    + + + + + + +
    colorline +

    The FT_ColorLine information for this paint, i.e., the list of color stops along the gradient.

    +
    c0 +

    The center of the starting point of the radial gradient in font units represented as a 16.16 fixed-point FT_Vector.

    +
    r0 +

    The radius of the starting circle of the radial gradient in font units represented as a 16.16 fixed-point value.

    +
    c1 +

    The center of the end point of the radial gradient in font units represented as a 16.16 fixed-point FT_Vector.

    +
    r1 +

    The radius of the end circle of the radial gradient in font units represented as a 16.16 fixed-point value.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintSweepGradient

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintSweepGradient_
+  {
+    FT_ColorLine  colorline;
+
+    FT_Vector  center;
+    FT_Fixed   start_angle;
+    FT_Fixed   end_angle;
+
+  } FT_PaintSweepGradient;
+
    + +

    A structure representing a PaintSweepGradient value of the ‘COLR’ v1 extensions, see ‘https://github.com/googlefonts/colr-gradients-spec’. The glyph layer filled with this paint is drawn filled with a sweep gradient from start_angle to end_angle.

    +

    fields

    + + + + + +
    colorline +

    The FT_ColorLine information for this paint, i.e., the list of color stops along the gradient.

    +
    center +

    The center of the sweep gradient in font units represented as a vector of 16.16 fixed-point values.

    +
    start_angle +

    The start angle of the sweep gradient in 16.16 fixed-point format specifying degrees divided by 180.0 (as in the spec). Multiply by 180.0f to receive degrees value. Values are given counter-clockwise, starting from the (positive) y axis.

    +
    end_angle +

    The end angle of the sweep gradient in 16.16 fixed-point format specifying degrees divided by 180.0 (as in the spec). Multiply by 180.0f to receive degrees value. Values are given counter-clockwise, starting from the (positive) y axis.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintGlyph

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintGlyph_
+  {
+    FT_OpaquePaint  paint;
+    FT_UInt         glyphID;
+
+  } FT_PaintGlyph;
+
    + +

    A structure representing a ‘COLR’ v1 PaintGlyph paint table.

    +

    fields

    + + + +
    paint +

    An opaque paint object pointing to a Paint table that serves as the fill for the glyph ID.

    +
    glyphID +

    The glyph ID from the ‘glyf’ table, which serves as the contour information that is filled with paint.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintColrGlyph

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintColrGlyph_
+  {
+    FT_UInt  glyphID;
+
+  } FT_PaintColrGlyph;
+
    + +

    A structure representing a ‘COLR’ v1 PaintColorGlyph paint table.

    +

    fields

    + + +
    glyphID +

    The glyph ID from the BaseGlyphV1List table that is drawn for this paint.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintTransform

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintTransform_
+  {
+    FT_OpaquePaint  paint;
+    FT_Affine23     affine;
+
+  } FT_PaintTransform;
+
    + +

    A structure representing a ‘COLR’ v1 PaintTransform paint table.

    +

    fields

    + + + +
    paint +

    An opaque paint that is subject to being transformed.

    +
    affine +

    A 2x3 transformation matrix in FT_Affine23 format containing 16.16 fixed-point values.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintTranslate

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintTranslate_
+  {
+    FT_OpaquePaint  paint;
+
+    FT_Fixed  dx;
+    FT_Fixed  dy;
+
+  } FT_PaintTranslate;
+
    + +

    A structure representing a ‘COLR’ v1 PaintTranslate paint table. Used for translating downstream paints by a given x and y delta.

    +

    fields

    + + + + +
    paint +

    An FT_OpaquePaint object referencing the paint that is to be rotated.

    +
    dx +

    Translation in x direction in font units represented as a 16.16 fixed-point value.

    +
    dy +

    Translation in y direction in font units represented as a 16.16 fixed-point value.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintScale

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintScale_
+  {
+    FT_OpaquePaint  paint;
+
+    FT_Fixed  scale_x;
+    FT_Fixed  scale_y;
+
+    FT_Fixed  center_x;
+    FT_Fixed  center_y;
+
+  } FT_PaintScale;
+
    + +

    A structure representing all of the ‘COLR’ v1 ‘PaintScale*’ paint tables. Used for scaling downstream paints by a given x and y scale, with a given center. This structure is used for all ‘PaintScale*’ types that are part of specification; fields of this structure are filled accordingly. If there is a center, the center values are set, otherwise they are set to the zero coordinate. If the source font file has ‘PaintScaleUniform*’ set, the scale values are set accordingly to the same value.

    +

    fields

    + + + + + + +
    paint +

    An FT_OpaquePaint object referencing the paint that is to be scaled.

    +
    scale_x +

    Scale factor in x direction represented as a 16.16 fixed-point value.

    +
    scale_y +

    Scale factor in y direction represented as a 16.16 fixed-point value.

    +
    center_x +

    x coordinate of center point to scale from represented as a 16.16 fixed-point value.

    +
    center_y +

    y coordinate of center point to scale from represented as a 16.16 fixed-point value.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintRotate

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintRotate_
+  {
+    FT_OpaquePaint  paint;
+
+    FT_Fixed  angle;
+
+    FT_Fixed  center_x;
+    FT_Fixed  center_y;
+
+  } FT_PaintRotate;
+
    + +

    A structure representing a ‘COLR’ v1 PaintRotate paint table. Used for rotating downstream paints with a given center and angle.

    +

    fields

    + + + + + +
    paint +

    An FT_OpaquePaint object referencing the paint that is to be rotated.

    +
    angle +

    The rotation angle that is to be applied in degrees divided by 180.0 (as in the spec) represented as a 16.16 fixed-point value. Multiply by 180.0f to receive degrees value.

    +
    center_x +

    The x coordinate of the pivot point of the rotation in font units represented as a 16.16 fixed-point value.

    +
    center_y +

    The y coordinate of the pivot point of the rotation in font units represented as a 16.16 fixed-point value.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintSkew

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintSkew_
+  {
+    FT_OpaquePaint  paint;
+
+    FT_Fixed  x_skew_angle;
+    FT_Fixed  y_skew_angle;
+
+    FT_Fixed  center_x;
+    FT_Fixed  center_y;
+
+  } FT_PaintSkew;
+
    + +

    A structure representing a ‘COLR’ v1 PaintSkew paint table. Used for skewing or shearing downstream paints by a given center and angle.

    +

    fields

    + + + + + + +
    paint +

    An FT_OpaquePaint object referencing the paint that is to be skewed.

    +
    x_skew_angle +

    The skewing angle in x direction in degrees divided by 180.0 (as in the spec) represented as a 16.16 fixed-point value. Multiply by 180.0f to receive degrees.

    +
    y_skew_angle +

    The skewing angle in y direction in degrees divided by 180.0 (as in the spec) represented as a 16.16 fixed-point value. Multiply by 180.0f to receive degrees.

    +
    center_x +

    The x coordinate of the pivot point of the skew in font units represented as a 16.16 fixed-point value.

    +
    center_y +

    The y coordinate of the pivot point of the skew in font units represented as a 16.16 fixed-point value.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_PaintComposite

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_PaintComposite_
+  {
+    FT_OpaquePaint     source_paint;
+    FT_Composite_Mode  composite_mode;
+    FT_OpaquePaint     backdrop_paint;
+
+  } FT_PaintComposite;
+
    + +

    A structure representing a ‘COLR’ v1 PaintComposite paint table. Used for compositing two paints in a ‘COLR’ v1 directed acyclic graph.

    +

    fields

    + + + + +
    source_paint +

    An FT_OpaquePaint object referencing the source that is to be composited.

    +
    composite_mode +

    An FT_Composite_Mode enum value determining the composition operation.

    +
    backdrop_paint +

    An FT_OpaquePaint object referencing the backdrop paint that source_paint is composited onto.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_COLR_Paint

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_COLR_Paint_
+  {
+    FT_PaintFormat format;
+
+    union
+    {
+      FT_PaintColrLayers      colr_layers;
+      FT_PaintGlyph           glyph;
+      FT_PaintSolid           solid;
+      FT_PaintLinearGradient  linear_gradient;
+      FT_PaintRadialGradient  radial_gradient;
+      FT_PaintSweepGradient   sweep_gradient;
+      FT_PaintTransform       transform;
+      FT_PaintTranslate       translate;
+      FT_PaintScale           scale;
+      FT_PaintRotate          rotate;
+      FT_PaintSkew            skew;
+      FT_PaintComposite       composite;
+      FT_PaintColrGlyph       colr_glyph;
+
+    } u;
+
+  } FT_COLR_Paint;
+
    + +

    A union object representing format and details of a paint table of a ‘COLR’ v1 font, see ‘https://github.com/googlefonts/colr-gradients-spec’. Use FT_Get_Paint to retrieve a FT_COLR_Paint for an FT_OpaquePaint object.

    +

    fields

    + + + +
    format +

    The gradient format for this Paint structure.

    +
    u +

    Union of all paint table types:

    + +
    + +

    since

    + +

    2.13

    +
    + +

    FT_Color_Root_Transform

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef enum  FT_Color_Root_Transform_
+  {
+    FT_COLOR_INCLUDE_ROOT_TRANSFORM,
+    FT_COLOR_NO_ROOT_TRANSFORM,
+
+    FT_COLOR_ROOT_TRANSFORM_MAX
+
+  } FT_Color_Root_Transform;
+
    + +

    An enumeration to specify whether FT_Get_Color_Glyph_Paint is to return a root transform to configure the client's graphics context matrix.

    +

    values

    + + + +
    FT_COLOR_INCLUDE_ROOT_TRANSFORM +

    Do include the root transform as the initial FT_COLR_Paint object.

    +
    FT_COLOR_NO_ROOT_TRANSFORM +

    Do not output an initial root transform.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_ClipBox

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      typedef struct  FT_ClipBox_
+  {
+    FT_Vector  bottom_left;
+    FT_Vector  top_left;
+    FT_Vector  top_right;
+    FT_Vector  bottom_right;
+
+  } FT_ClipBox;
+
    + +

    A structure representing a ‘COLR’ v1 ‘ClipBox’ table. ‘COLR’ v1 glyphs may optionally define a clip box for aiding allocation or defining a maximum drawable region. Use FT_Get_Color_Glyph_ClipBox to retrieve it.

    +

    fields

    + + + + + +
    bottom_left +

    The bottom left corner of the clip box as an FT_Vector with fixed-point coordinates in 26.6 format.

    +
    top_left +

    The top left corner of the clip box as an FT_Vector with fixed-point coordinates in 26.6 format.

    +
    top_right +

    The top right corner of the clip box as an FT_Vector with fixed-point coordinates in 26.6 format.

    +
    bottom_right +

    The bottom right corner of the clip box as an FT_Vector with fixed-point coordinates in 26.6 format.

    +
    + +

    since

    + +

    2.13

    +
    + +

    FT_Get_Color_Glyph_Paint

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      FT_EXPORT( FT_Bool )
+  FT_Get_Color_Glyph_Paint( FT_Face                  face,
+                            FT_UInt                  base_glyph,
+                            FT_Color_Root_Transform  root_transform,
+                            FT_OpaquePaint*          paint );
+
    + +

    This is the starting point and interface to color gradient information in a ‘COLR’ v1 table in OpenType fonts to recursively retrieve the paint tables for the directed acyclic graph of a colored glyph, given a glyph ID.

    +

    https://github.com/googlefonts/colr-gradients-spec

    +

    In a ‘COLR’ v1 font, each color glyph defines a directed acyclic graph of nested paint tables, such as PaintGlyph, PaintSolid, PaintLinearGradient, PaintRadialGradient, and so on. Using this function and specifying a glyph ID, one retrieves the root paint table for this glyph ID.

    +

    This function allows control whether an initial root transform is returned to configure scaling, transform, and translation correctly on the client's graphics context. The initial root transform is computed and returned according to the values configured for FT_Size and FT_Set_Transform on the FT_Face object, see below for details of the root_transform parameter. This has implications for a client ‘COLR’ v1 implementation: When this function returns an initially computed root transform, at the time of executing the FT_PaintGlyph operation, the contours should be retrieved using FT_Load_Glyph at unscaled, untransformed size. This is because the root transform applied to the graphics context will take care of correct scaling.

    +

    Alternatively, to allow hinting of contours, at the time of executing FT_Load_Glyph, the current graphics context transformation matrix can be decomposed into a scaling matrix and a remainder, and FT_Load_Glyph can be used to retrieve the contours at scaled size. Care must then be taken to blit or clip to the graphics context with taking this remainder transformation into account.

    +

    input

    + + + + +
    face +

    A handle to the parent face object.

    +
    base_glyph +

    The glyph index for which to retrieve the root paint table.

    +
    root_transform +

    Specifies whether an initially computed root is returned by the FT_PaintTransform operation to account for the activated size (see FT_Activate_Size) and the configured transform and translate (see FT_Set_Transform).

    +

    This root transform is returned before nodes of the glyph graph of the font are returned. Subsequent FT_COLR_Paint structures contain unscaled and untransformed values. The inserted root transform enables the client application to apply an initial transform to its graphics context. When executing subsequent FT_COLR_Paint operations, values from FT_COLR_Paint operations will ultimately be correctly scaled because of the root transform applied to the graphics context. Use FT_COLOR_INCLUDE_ROOT_TRANSFORM to include the root transform, use FT_COLOR_NO_ROOT_TRANSFORM to not include it. The latter may be useful when traversing the ‘COLR’ v1 glyph graph and reaching a FT_PaintColrGlyph. When recursing into FT_PaintColrGlyph and painting that inline, no additional root transform is needed as it has already been applied to the graphics context at the beginning of drawing this glyph.

    +
    + +

    output

    + + +
    paint +

    The FT_OpaquePaint object that references the actual paint table.

    +

    The respective actual FT_COLR_Paint object is retrieved via FT_Get_Paint.

    +
    + +

    return

    + +

    Value 1 if everything is OK. If no color glyph is found, or the root paint could not be retrieved, value 0 gets returned. In case of an error, value 0 is returned also.

    +

    since

    + +

    2.13

    +
    + +

    FT_Get_Color_Glyph_ClipBox

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      FT_EXPORT( FT_Bool )
+  FT_Get_Color_Glyph_ClipBox( FT_Face      face,
+                              FT_UInt      base_glyph,
+                              FT_ClipBox*  clip_box );
+
    + +

    Search for a ‘COLR’ v1 clip box for the specified base_glyph and fill the clip_box parameter with the ‘COLR’ v1 ‘ClipBox’ information if one is found.

    +

    input

    + + + +
    face +

    A handle to the parent face object.

    +
    base_glyph +

    The glyph index for which to retrieve the clip box.

    +
    + +

    output

    + + +
    clip_box +

    The clip box for the requested base_glyph if one is found. The clip box is computed taking scale and transformations configured on the FT_Face into account. FT_ClipBox contains FT_Vector values in 26.6 format.

    +
    + +

    return

    + +

    Value 1 if a clip box is found. If no clip box is found or an error occured, value 0 is returned.

    +

    note

    + +

    To retrieve the clip box in font units, reset scale to units-per-em and remove transforms configured using FT_Set_Transform.

    +

    since

    + +

    2.13

    +
    + +

    FT_Get_Paint_Layers

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      FT_EXPORT( FT_Bool )
+  FT_Get_Paint_Layers( FT_Face            face,
+                       FT_LayerIterator*  iterator,
+                       FT_OpaquePaint*    paint );
+
    + +

    Access the layers of a PaintColrLayers table.

    +

    If the root paint of a color glyph, or a nested paint of a ‘COLR’ glyph is a PaintColrLayers table, this function retrieves the layers of the PaintColrLayers table.

    +

    The FT_PaintColrLayers object contains an FT_LayerIterator, which is used here to iterate over the layers. Each layer is returned as an FT_OpaquePaint object, which then can be used with FT_Get_Paint to retrieve the actual paint object.

    +

    input

    + + +
    face +

    A handle to the parent face object.

    +
    + +

    inout

    + + +
    iterator +

    The FT_LayerIterator from an FT_PaintColrLayers object, for which the layers are to be retrieved. The internal state of the iterator is incremented after one call to this function for retrieving one layer.

    +
    + +

    output

    + + +
    paint +

    The FT_OpaquePaint object that references the actual paint table. The respective actual FT_COLR_Paint object is retrieved via FT_Get_Paint.

    +
    + +

    return

    + +

    Value 1 if everything is OK. Value 0 gets returned when the paint object can not be retrieved or any other error occurs.

    +

    since

    + +

    2.13

    +
    + +

    FT_Get_Colorline_Stops

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      FT_EXPORT( FT_Bool )
+  FT_Get_Colorline_Stops( FT_Face                face,
+                          FT_ColorStop*          color_stop,
+                          FT_ColorStopIterator*  iterator );
+
    + +

    This is an interface to color gradient information in a ‘COLR’ v1 table in OpenType fonts to iteratively retrieve the gradient and solid fill information for colored glyph layers for a specified glyph ID.

    +

    https://github.com/googlefonts/colr-gradients-spec

    +

    input

    + + +
    face +

    A handle to the parent face object.

    +
    + +

    inout

    + + +
    iterator +

    The retrieved FT_ColorStopIterator, configured on an FT_ColorLine, which in turn got retrieved via paint information in FT_PaintLinearGradient or FT_PaintRadialGradient.

    +
    + +

    output

    + + +
    color_stop +

    Color index and alpha value for the retrieved color stop.

    +
    + +

    return

    + +

    Value 1 if everything is OK. If there are no more color stops, value 0 gets returned. In case of an error, value 0 is returned also.

    +

    since

    + +

    2.13

    +
    + +

    FT_Get_Paint

    +

    Defined in FT_COLOR_H (freetype/ftcolor.h).

    +
      FT_EXPORT( FT_Bool )
+  FT_Get_Paint( FT_Face         face,
+                FT_OpaquePaint  opaque_paint,
+                FT_COLR_Paint*  paint );
+
    + +

    Access the details of a paint using an FT_OpaquePaint opaque paint object, which internally stores the offset to the respective Paint object in the ‘COLR’ table.

    +

    input

    + + + +
    face +

    A handle to the parent face object.

    +
    opaque_paint +

    The opaque paint object for which the underlying FT_COLR_Paint data is to be retrieved.

    +
    + +

    output

    + + +
    paint +

    The specific FT_COLR_Paint object containing information coming from one of the font's Paint* tables.

    +
    + +

    return

    + +

    Value 1 if everything is OK. Value 0 if no details can be found for this paint or any other error occured.

    +

    since

    + +

    2.13

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-lcd_rendering.html b/modules/freetype2/docs/reference/ft2-lcd_rendering.html new file mode 100644 index 0000000000..e7ceaea68c --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-lcd_rendering.html @@ -0,0 +1,1604 @@ + + + + + + + + + + + + + + + + + + + + + Subpixel Rendering - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
    + +
    + +
    + + + + +
    +
    + + + +
    +
    +
    + + + + +
    +
    +
    + + + +
    +
    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Controlling FreeType Modules » Subpixel Rendering

    +
    +

    Subpixel Rendering

    +

    Synopsis

    +

    FreeType provides two alternative subpixel rendering technologies. Should you define FT_CONFIG_OPTION_SUBPIXEL_RENDERING in your ftoption.h file, this enables ClearType-style rendering. Otherwise, Harmony LCD rendering is enabled. These technologies are controlled differently and API described below, although always available, performs its function when appropriate method is enabled and does nothing otherwise.

    +

    ClearType-style LCD rendering exploits the color-striped structure of LCD pixels, increasing the available resolution in the direction of the stripe (usually horizontal RGB) by a factor of 3. Using the subpixel coverages unfiltered can create severe color fringes especially when rendering thin features. Indeed, to produce black-on-white text, the nearby color subpixels must be dimmed evenly. Therefore, an equalizing 5-tap FIR filter should be applied to subpixel coverages regardless of pixel boundaries and should have these properties:

    +
      +
    1. +

      It should be symmetrical, like { a, b, c, b, a }, to avoid any shifts in appearance.

      +
      2. +
    2. +

      It should be color-balanced, meaning a + b = c, to reduce color fringes by distributing the computed coverage for one subpixel to all subpixels equally.

      +
      3. +
    3. +

      It should be normalized, meaning 2a + 2b + c = 1.0 to maintain overall brightness.

      +
      4. +
    +

    Boxy 3-tap filter {0, ⅓, ⅓, ⅓, 0} is sharper but is less forgiving of non-ideal gamma curves of a screen (and viewing angles), beveled filters are fuzzier but more tolerant.

    +

    Use the FT_Library_SetLcdFilter or FT_Library_SetLcdFilterWeights API to specify a low-pass filter, which is then applied to subpixel-rendered bitmaps generated through FT_Render_Glyph.

    +

    Harmony LCD rendering is suitable to panels with any regular subpixel structure, not just monitors with 3 color striped subpixels, as long as the color subpixels have fixed positions relative to the pixel center. In this case, each color channel can be rendered separately after shifting the outline opposite to the subpixel shift so that the coverage maps are aligned. This method is immune to color fringes because the shifts do not change integral coverage.

    +

    The subpixel geometry must be specified by xy-coordinates for each subpixel. By convention they may come in the RGB order: {{-⅓, 0}, {0, 0}, {⅓, 0}} for standard RGB striped panel or {{-⅙, ¼}, {-⅙, -¼}, {⅓, 0}} for a certain PenTile panel.

    +

    Use the FT_Library_SetLcdGeometry API to specify subpixel positions. If one follows the RGB order convention, the same order applies to the resulting FT_PIXEL_MODE_LCD and FT_PIXEL_MODE_LCD_V bitmaps. Note, however, that the coordinate frame for the latter must be rotated clockwise. Harmony with default LCD geometry is equivalent to ClearType with light filter.

    +

    As a result of ClearType filtering or Harmony shifts, the resulting dimensions of LCD bitmaps can be slightly wider or taller than the dimensions the original outline with regard to the pixel grid. For example, for FT_RENDER_MODE_LCD, the filter adds 2 subpixels to the left, and 2 subpixels to the right. The bitmap offset values are adjusted accordingly, so clients shouldn't need to modify their layout and glyph positioning code when enabling the filter.

    +

    The ClearType and Harmony rendering is applicable to glyph bitmaps rendered through FT_Render_Glyph, FT_Load_Glyph, FT_Load_Char, and FT_Glyph_To_Bitmap, when FT_RENDER_MODE_LCD or FT_RENDER_MODE_LCD_V is specified. This API does not control FT_Outline_Render and FT_Outline_Get_Bitmap.

    +

    The described algorithms can completely remove color artefacts when combined with gamma-corrected alpha blending in linear space. Each of the 3 alpha values (subpixels) must by independently used to blend one color channel. That is, red alpha blends the red channel of the text color with the red channel of the background pixel.

    +

    FT_LcdFilter

    +

    Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h).

    +
      typedef enum  FT_LcdFilter_
+  {
+    FT_LCD_FILTER_NONE    = 0,
+    FT_LCD_FILTER_DEFAULT = 1,
+    FT_LCD_FILTER_LIGHT   = 2,
+    FT_LCD_FILTER_LEGACY1 = 3,
+    FT_LCD_FILTER_LEGACY  = 16,
+
+    FT_LCD_FILTER_MAX   /* do not remove */
+
+  } FT_LcdFilter;
+
    + +

    A list of values to identify various types of LCD filters.

    +

    values

    + + + + + + +
    FT_LCD_FILTER_NONE +

    Do not perform filtering. When used with subpixel rendering, this results in sometimes severe color fringes.

    +
    FT_LCD_FILTER_DEFAULT +

    This is a beveled, normalized, and color-balanced five-tap filter with weights of [0x08 0x4D 0x56 0x4D 0x08] in 1/256 units.

    +
    FT_LCD_FILTER_LIGHT +

    this is a boxy, normalized, and color-balanced three-tap filter with weights of [0x00 0x55 0x56 0x55 0x00] in 1/256 units.

    +
    FT_LCD_FILTER_LEGACY + +
    FT_LCD_FILTER_LEGACY1 +

    This filter corresponds to the original libXft color filter. It provides high contrast output but can exhibit really bad color fringes if glyphs are not extremely well hinted to the pixel grid. This filter is only provided for comparison purposes, and might be disabled or stay unsupported in the future. The second value is provided for compatibility with FontConfig, which historically used different enumeration, sometimes incorrectly forwarded to FreeType.

    +
    + +

    since

    + +

    2.3.0 (FT_LCD_FILTER_LEGACY1 since 2.6.2)

    +
    + +

    FT_Library_SetLcdFilter

    +

    Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Library_SetLcdFilter( FT_Library    library,
+                           FT_LcdFilter  filter );
+
    + +

    This function is used to change filter applied to LCD decimated bitmaps, like the ones used when calling FT_Render_Glyph with FT_RENDER_MODE_LCD or FT_RENDER_MODE_LCD_V.

    +

    input

    + + + +
    library +

    A handle to the target library instance.

    +
    filter +

    The filter type.

    +

    You can use FT_LCD_FILTER_NONE here to disable this feature, or FT_LCD_FILTER_DEFAULT to use a default filter that should work well on most LCD screens.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Since 2.10.3 the LCD filtering is enabled with FT_LCD_FILTER_DEFAULT. It is no longer necessary to call this function explicitly except to choose a different filter or disable filtering altogether with FT_LCD_FILTER_NONE.

    +

    This function does nothing but returns FT_Err_Unimplemented_Feature if the configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not defined in your build of the library.

    +

    since

    + +

    2.3.0

    +
    + +

    FT_Library_SetLcdFilterWeights

    +

    Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Library_SetLcdFilterWeights( FT_Library      library,
+                                  unsigned char  *weights );
+
    + +

    This function can be used to enable LCD filter with custom weights, instead of using presets in FT_Library_SetLcdFilter.

    +

    input

    + + + +
    library +

    A handle to the target library instance.

    +
    weights +

    A pointer to an array; the function copies the first five bytes and uses them to specify the filter weights in 1/256 units.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function does nothing but returns FT_Err_Unimplemented_Feature if the configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not defined in your build of the library.

    +

    LCD filter weights can also be set per face using FT_Face_Properties with FT_PARAM_TAG_LCD_FILTER_WEIGHTS.

    +

    since

    + +

    2.4.0

    +
    + +

    FT_LcdFiveTapFilter

    +

    Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h).

    +
    #define FT_LCD_FILTER_FIVE_TAPS  5
+
+  typedef FT_Byte  FT_LcdFiveTapFilter[FT_LCD_FILTER_FIVE_TAPS];
+
    + +

    A typedef for passing the five LCD filter weights to FT_Face_Properties within an FT_Parameter structure.

    +

    since

    + +

    2.8

    +
    + +

    FT_Library_SetLcdGeometry

    +

    Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Library_SetLcdGeometry( FT_Library  library,
+                             FT_Vector   sub[3] );
+
    + +

    This function can be used to modify default positions of color subpixels, which controls Harmony LCD rendering.

    +

    input

    + + + +
    library +

    A handle to the target library instance.

    +
    sub +

    A pointer to an array of 3 vectors in 26.6 fractional pixel format; the function modifies the default values, see the note below.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Subpixel geometry examples:

    +
      +
    • +

      {{-21, 0}, {0, 0}, {21, 0}} is the default, corresponding to 3 color stripes shifted by a third of a pixel. This could be an RGB panel.

      +
      • +
    • +

      {{21, 0}, {0, 0}, {-21, 0}} looks the same as the default but can specify a BGR panel instead, while keeping the bitmap in the same RGB888 format.

      +
      • +
    • +

      {{0, 21}, {0, 0}, {0, -21}} is the vertical RGB, but the bitmap stays RGB888 as a result.

      +
      • +
    • +

      {{-11, 16}, {-11, -16}, {22, 0}} is a certain PenTile arrangement.

      +
      • +
    +

    This function does nothing and returns FT_Err_Unimplemented_Feature in the context of ClearType-style subpixel rendering when FT_CONFIG_OPTION_SUBPIXEL_RENDERING is defined in your build of the library.

    +

    since

    + +

    2.10.0

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-library_setup.html b/modules/freetype2/docs/reference/ft2-library_setup.html new file mode 100644 index 0000000000..31c2f0ebe2 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-library_setup.html @@ -0,0 +1,1546 @@ + + + + + + + + + + + + + + + + + + + + + Library Setup - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
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    + + +
    +
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    + + +
    +
    + + + +

    FreeType » Docs » Core API » Library Setup

    +
    +

    Library Setup

    +

    Synopsis

    +

    Functions to start and end the usage of the FreeType library.

    +

    Note that FT_Library_Version and FREETYPE_XXX are of limited use because even a new release of FreeType with only documentation changes increases the version number.

    +

    FT_Library

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_LibraryRec_  *FT_Library;
+
    + +

    A handle to a FreeType library instance. Each ‘library’ is completely independent from the others; it is the ‘root’ of a set of objects like fonts, faces, sizes, etc.

    +

    It also embeds a memory manager (see FT_Memory), as well as a scan-line converter object (see FT_Raster).

    +

    [Since 2.5.6] In multi-threaded applications it is easiest to use one FT_Library object per thread. In case this is too cumbersome, a single FT_Library object across threads is possible also, as long as a mutex lock is used around FT_New_Face and FT_Done_Face.

    +

    note

    + +

    Library objects are normally created by FT_Init_FreeType, and destroyed with FT_Done_FreeType. If you need reference-counting (cf. FT_Reference_Library), use FT_New_Library and FT_Done_Library.

    +
    + +

    FT_Init_FreeType

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Init_FreeType( FT_Library  *alibrary );
+
    + +

    Initialize a new FreeType library object. The set of modules that are registered by this function is determined at build time.

    +

    output

    + + +
    alibrary +

    A handle to a new library object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    In case you want to provide your own memory allocating routines, use FT_New_Library instead, followed by a call to FT_Add_Default_Modules (or a series of calls to FT_Add_Module) and FT_Set_Default_Properties.

    +

    See the documentation of FT_Library and FT_Face for multi-threading issues.

    +

    If you need reference-counting (cf. FT_Reference_Library), use FT_New_Library and FT_Done_Library.

    +

    If compilation option FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES is set, this function reads the FREETYPE_PROPERTIES environment variable to control driver properties. See section ‘Driver properties’ for more.

    +
    + +

    FT_Done_FreeType

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Done_FreeType( FT_Library  library );
+
    + +

    Destroy a given FreeType library object and all of its children, including resources, drivers, faces, sizes, etc.

    +

    input

    + + +
    library +

    A handle to the target library object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Library_Version

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( void )
+  FT_Library_Version( FT_Library   library,
+                      FT_Int      *amajor,
+                      FT_Int      *aminor,
+                      FT_Int      *apatch );
+
    + +

    Return the version of the FreeType library being used. This is useful when dynamically linking to the library, since one cannot use the macros FREETYPE_MAJOR, FREETYPE_MINOR, and FREETYPE_PATCH.

    +

    input

    + + +
    library +

    A source library handle.

    +
    + +

    output

    + + + + +
    amajor +

    The major version number.

    +
    aminor +

    The minor version number.

    +
    apatch +

    The patch version number.

    +
    + +

    note

    + +

    The reason why this function takes a library argument is because certain programs implement library initialization in a custom way that doesn't use FT_Init_FreeType.

    +

    In such cases, the library version might not be available before the library object has been created.

    +
    + +

    FREETYPE_XXX

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FREETYPE_MAJOR  2
+#define FREETYPE_MINOR  13
+#define FREETYPE_PATCH  2
+
    + +

    These three macros identify the FreeType source code version. Use FT_Library_Version to access them at runtime.

    +

    values

    + + + + +
    FREETYPE_MAJOR +

    The major version number.

    +
    FREETYPE_MINOR +

    The minor version number.

    +
    FREETYPE_PATCH +

    The patch level.

    +
    + +

    note

    + +

    The version number of FreeType if built as a dynamic link library with the ‘libtool’ package is not controlled by these three macros.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-list_processing.html b/modules/freetype2/docs/reference/ft2-list_processing.html new file mode 100644 index 0000000000..9e4435051a --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-list_processing.html @@ -0,0 +1,1813 @@ + + + + + + + + + + + + + + + + + + + + + List Processing - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Support API » List Processing

    +
    +

    List Processing

    +

    Synopsis

    +

    This section contains various definitions related to list processing using doubly-linked nodes.

    +

    FT_List

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef struct FT_ListRec_*  FT_List;
+
    + +

    A handle to a list record (see FT_ListRec).

    +
    + +

    FT_ListNode

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef struct FT_ListNodeRec_*  FT_ListNode;
+
    + +

    Many elements and objects in FreeType are listed through an FT_List record (see FT_ListRec). As its name suggests, an FT_ListNode is a handle to a single list element.

    +
    + +

    FT_ListRec

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef struct  FT_ListRec_
+  {
+    FT_ListNode  head;
+    FT_ListNode  tail;
+
+  } FT_ListRec;
+
    + +

    A structure used to hold a simple doubly-linked list. These are used in many parts of FreeType.

    +

    fields

    + + + +
    +

    The head (first element) of doubly-linked list.

    +
    tail +

    The tail (last element) of doubly-linked list.

    +
    + +
    + +

    FT_ListNodeRec

    +

    Defined in FT_TYPES_H (freetype/fttypes.h).

    +
      typedef struct  FT_ListNodeRec_
+  {
+    FT_ListNode  prev;
+    FT_ListNode  next;
+    void*        data;
+
+  } FT_ListNodeRec;
+
    + +

    A structure used to hold a single list element.

    +

    fields

    + + + + +
    prev +

    The previous element in the list. NULL if first.

    +
    next +

    The next element in the list. NULL if last.

    +
    data +

    A typeless pointer to the listed object.

    +
    + +
    + +

    FT_List_Add

    +

    Defined in FT_LIST_H (freetype/ftlist.h).

    +
      FT_EXPORT( void )
+  FT_List_Add( FT_List      list,
+               FT_ListNode  node );
+
    + +

    Append an element to the end of a list.

    +

    inout

    + + + +
    list +

    A pointer to the parent list.

    +
    node +

    The node to append.

    +
    + +
    + +

    FT_List_Insert

    +

    Defined in FT_LIST_H (freetype/ftlist.h).

    +
      FT_EXPORT( void )
+  FT_List_Insert( FT_List      list,
+                  FT_ListNode  node );
+
    + +

    Insert an element at the head of a list.

    +

    inout

    + + + +
    list +

    A pointer to parent list.

    +
    node +

    The node to insert.

    +
    + +
    + +

    FT_List_Find

    +

    Defined in FT_LIST_H (freetype/ftlist.h).

    +
      FT_EXPORT( FT_ListNode )
+  FT_List_Find( FT_List  list,
+                void*    data );
+
    + +

    Find the list node for a given listed object.

    +

    input

    + + + +
    list +

    A pointer to the parent list.

    +
    data +

    The address of the listed object.

    +
    + +

    return

    + +

    List node. NULL if it wasn't found.

    +
    + +

    FT_List_Remove

    +

    Defined in FT_LIST_H (freetype/ftlist.h).

    +
      FT_EXPORT( void )
+  FT_List_Remove( FT_List      list,
+                  FT_ListNode  node );
+
    + +

    Remove a node from a list. This function doesn't check whether the node is in the list!

    +

    input

    + + +
    node +

    The node to remove.

    +
    + +

    inout

    + + +
    list +

    A pointer to the parent list.

    +
    + +
    + +

    FT_List_Up

    +

    Defined in FT_LIST_H (freetype/ftlist.h).

    +
      FT_EXPORT( void )
+  FT_List_Up( FT_List      list,
+              FT_ListNode  node );
+
    + +

    Move a node to the head/top of a list. Used to maintain LRU lists.

    +

    inout

    + + + +
    list +

    A pointer to the parent list.

    +
    node +

    The node to move.

    +
    + +
    + +

    FT_List_Iterate

    +

    Defined in FT_LIST_H (freetype/ftlist.h).

    +
      FT_EXPORT( FT_Error )
+  FT_List_Iterate( FT_List           list,
+                   FT_List_Iterator  iterator,
+                   void*             user );
+
    + +

    Parse a list and calls a given iterator function on each element. Note that parsing is stopped as soon as one of the iterator calls returns a non-zero value.

    +

    input

    + + + + +
    list +

    A handle to the list.

    +
    iterator +

    An iterator function, called on each node of the list.

    +
    user +

    A user-supplied field that is passed as the second argument to the iterator.

    +
    + +

    return

    + +

    The result (a FreeType error code) of the last iterator call.

    +
    + +

    FT_List_Iterator

    +

    Defined in FT_LIST_H (freetype/ftlist.h).

    +
      typedef FT_Error
+  (*FT_List_Iterator)( FT_ListNode  node,
+                       void*        user );
+
    + +

    An FT_List iterator function that is called during a list parse by FT_List_Iterate.

    +

    input

    + + + +
    node +

    The current iteration list node.

    +
    user +

    A typeless pointer passed to FT_List_Iterate. Can be used to point to the iteration's state.

    +
    + +
    + +

    FT_List_Finalize

    +

    Defined in FT_LIST_H (freetype/ftlist.h).

    +
      FT_EXPORT( void )
+  FT_List_Finalize( FT_List             list,
+                    FT_List_Destructor  destroy,
+                    FT_Memory           memory,
+                    void*               user );
+
    + +

    Destroy all elements in the list as well as the list itself.

    +

    input

    + + + + + +
    list +

    A handle to the list.

    +
    destroy +

    A list destructor that will be applied to each element of the list. Set this to NULL if not needed.

    +
    memory +

    The current memory object that handles deallocation.

    +
    user +

    A user-supplied field that is passed as the last argument to the destructor.

    +
    + +

    note

    + +

    This function expects that all nodes added by FT_List_Add or FT_List_Insert have been dynamically allocated.

    +
    + +

    FT_List_Destructor

    +

    Defined in FT_LIST_H (freetype/ftlist.h).

    +
      typedef void
+  (*FT_List_Destructor)( FT_Memory  memory,
+                         void*      data,
+                         void*      user );
+
    + +

    An FT_List iterator function that is called during a list finalization by FT_List_Finalize to destroy all elements in a given list.

    +

    input

    + + + + +
    system +

    The current system object.

    +
    data +

    The current object to destroy.

    +
    user +

    A typeless pointer passed to FT_List_Iterate. It can be used to point to the iteration's state.

    +
    + +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-lzw.html b/modules/freetype2/docs/reference/ft2-lzw.html new file mode 100644 index 0000000000..1c25d6a338 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-lzw.html @@ -0,0 +1,1400 @@ + + + + + + + + + + + + + + + + + + + + + LZW Streams - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Support API » LZW Streams

    +
    +

    LZW Streams

    +

    Synopsis

    +

    In certain builds of the library, LZW compression recognition is automatically handled when calling FT_New_Face or FT_Open_Face. This means that if no font driver is capable of handling the raw compressed file, the library will try to open a LZW stream from it and re-open the face with it.

    +

    The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance.

    +

    This section contains the declaration of LZW-specific functions.

    +

    FT_Stream_OpenLZW

    +

    Defined in FT_LZW_H (freetype/ftlzw.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Stream_OpenLZW( FT_Stream  stream,
+                     FT_Stream  source );
+
    + +

    Open a new stream to parse LZW-compressed font files. This is mainly used to support the compressed *.pcf.Z fonts that come with XFree86.

    +

    input

    + + + +
    stream +

    The target embedding stream.

    +
    source +

    The source stream.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The source stream must be opened before calling this function.

    +

    Calling the internal function FT_Stream_Close on the new stream will not call FT_Stream_Close on the source stream. None of the stream objects will be released to the heap.

    +

    This function may return FT_Err_Unimplemented_Feature if your build of FreeType was not compiled with LZW support.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-mac_specific.html b/modules/freetype2/docs/reference/ft2-mac_specific.html new file mode 100644 index 0000000000..3f5882a3c0 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-mac_specific.html @@ -0,0 +1,1672 @@ + + + + + + + + + + + + + + + + + + + + + Mac Specific Interface - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Extended API » Mac Specific Interface

    +
    +

    Mac Specific Interface

    +

    Synopsis

    +

    The following definitions are only available if FreeType is compiled on a Macintosh.

    +

    FT_New_Face_From_FOND

    +

    Defined in FT_MAC_H (freetype/ftmac.h).

    +
      FT_EXPORT( FT_Error )
+  FT_New_Face_From_FOND( FT_Library  library,
+                         Handle      fond,
+                         FT_Long     face_index,
+                         FT_Face    *aface )
+                       FT_DEPRECATED_ATTRIBUTE;
+
    + +

    Create a new face object from a FOND resource.

    +

    inout

    + + +
    library +

    A handle to the library resource.

    +
    + +

    input

    + + + +
    fond +

    A FOND resource.

    +
    face_index +

    Only supported for the -1 ‘sanity check’ special case.

    +
    + +

    output

    + + +
    aface +

    A handle to a new face object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    example

    + +

    This function can be used to create FT_Face objects from fonts that are installed in the system as follows. +

      fond  = GetResource( 'FOND', fontName );
+  error = FT_New_Face_From_FOND( library, fond, 0, &face );
+

    +
    + +

    FT_GetFile_From_Mac_Name

    +

    Defined in FT_MAC_H (freetype/ftmac.h).

    +
      FT_EXPORT( FT_Error )
+  FT_GetFile_From_Mac_Name( const char*  fontName,
+                            FSSpec*      pathSpec,
+                            FT_Long*     face_index )
+                          FT_DEPRECATED_ATTRIBUTE;
+
    + +

    Return an FSSpec for the disk file containing the named font.

    +

    input

    + + +
    fontName +

    Mac OS name of the font (e.g., Times New Roman Bold).

    +
    + +

    output

    + + + +
    pathSpec +

    FSSpec to the file. For passing to FT_New_Face_From_FSSpec.

    +
    face_index +

    Index of the face. For passing to FT_New_Face_From_FSSpec.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_GetFile_From_Mac_ATS_Name

    +

    Defined in FT_MAC_H (freetype/ftmac.h).

    +
      FT_EXPORT( FT_Error )
+  FT_GetFile_From_Mac_ATS_Name( const char*  fontName,
+                                FSSpec*      pathSpec,
+                                FT_Long*     face_index )
+                              FT_DEPRECATED_ATTRIBUTE;
+
    + +

    Return an FSSpec for the disk file containing the named font.

    +

    input

    + + +
    fontName +

    Mac OS name of the font in ATS framework.

    +
    + +

    output

    + + + +
    pathSpec +

    FSSpec to the file. For passing to FT_New_Face_From_FSSpec.

    +
    face_index +

    Index of the face. For passing to FT_New_Face_From_FSSpec.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_GetFilePath_From_Mac_ATS_Name

    +

    Defined in FT_MAC_H (freetype/ftmac.h).

    +
      FT_EXPORT( FT_Error )
+  FT_GetFilePath_From_Mac_ATS_Name( const char*  fontName,
+                                    UInt8*       path,
+                                    UInt32       maxPathSize,
+                                    FT_Long*     face_index )
+                                  FT_DEPRECATED_ATTRIBUTE;
+
    + +

    Return a pathname of the disk file and face index for given font name that is handled by ATS framework.

    +

    input

    + + +
    fontName +

    Mac OS name of the font in ATS framework.

    +
    + +

    output

    + + + + +
    path +

    Buffer to store pathname of the file. For passing to FT_New_Face. The client must allocate this buffer before calling this function.

    +
    maxPathSize +

    Lengths of the buffer path that client allocated.

    +
    face_index +

    Index of the face. For passing to FT_New_Face.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_New_Face_From_FSSpec

    +

    Defined in FT_MAC_H (freetype/ftmac.h).

    +
      FT_EXPORT( FT_Error )
+  FT_New_Face_From_FSSpec( FT_Library     library,
+                           const FSSpec  *spec,
+                           FT_Long        face_index,
+                           FT_Face       *aface )
+                         FT_DEPRECATED_ATTRIBUTE;
+
    + +

    Create a new face object from a given resource and typeface index using an FSSpec to the font file.

    +

    inout

    + + +
    library +

    A handle to the library resource.

    +
    + +

    input

    + + + +
    spec +

    FSSpec to the font file.

    +
    face_index +

    The index of the face within the resource. The first face has index 0.

    +
    + +

    output

    + + +
    aface +

    A handle to a new face object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    FT_New_Face_From_FSSpec is identical to FT_New_Face except it accepts an FSSpec instead of a path.

    +
    + +

    FT_New_Face_From_FSRef

    +

    Defined in FT_MAC_H (freetype/ftmac.h).

    +
      FT_EXPORT( FT_Error )
+  FT_New_Face_From_FSRef( FT_Library    library,
+                          const FSRef  *ref,
+                          FT_Long       face_index,
+                          FT_Face      *aface )
+                        FT_DEPRECATED_ATTRIBUTE;
+
    + +

    Create a new face object from a given resource and typeface index using an FSRef to the font file.

    +

    inout

    + + +
    library +

    A handle to the library resource.

    +
    + +

    input

    + + + +
    spec +

    FSRef to the font file.

    +
    face_index +

    The index of the face within the resource. The first face has index 0.

    +
    + +

    output

    + + +
    aface +

    A handle to a new face object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    FT_New_Face_From_FSRef is identical to FT_New_Face except it accepts an FSRef instead of a path.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-module_management.html b/modules/freetype2/docs/reference/ft2-module_management.html new file mode 100644 index 0000000000..3a1c6100ba --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-module_management.html @@ -0,0 +1,2363 @@ + + + + + + + + + + + + + + + + + + + + + Module Management - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
    + +
    + +
    + + + + +
    +
    + + + +
    +
    +
    + + + + +
    +
    +
    + + + +
    +
    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Support API » Module Management

    +
    +

    Module Management

    +

    Synopsis

    +

    The definitions below are used to manage modules within FreeType. Internal and external modules can be added, upgraded, and removed at runtime. For example, an alternative renderer or proprietary font driver can be registered and prioritized. Additionally, some module properties can also be controlled.

    +

    Here is a list of existing values of the module_name field in the FT_Module_Class structure. +

      autofitter
+  bdf
+  cff
+  gxvalid
+  otvalid
+  pcf
+  pfr
+  psaux
+  pshinter
+  psnames
+  raster1
+  sfnt
+  smooth
+  truetype
+  type1
+  type42
+  t1cid
+  winfonts
+

    +

    Note that the FreeType Cache sub-system is not a FreeType module.

    +

    FT_Module

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_ModuleRec_*  FT_Module;
+
    + +

    A handle to a given FreeType module object. A module can be a font driver, a renderer, or anything else that provides services to the former.

    +
    + +

    FT_Module_Constructor

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      typedef FT_Error
+  (*FT_Module_Constructor)( FT_Module  module );
+
    + +

    A function used to initialize (not create) a new module object.

    +

    input

    + + +
    module +

    The module to initialize.

    +
    + +
    + +

    FT_Module_Destructor

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      typedef void
+  (*FT_Module_Destructor)( FT_Module  module );
+
    + +

    A function used to finalize (not destroy) a given module object.

    +

    input

    + + +
    module +

    The module to finalize.

    +
    + +
    + +

    FT_Module_Requester

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      typedef FT_Module_Interface
+  (*FT_Module_Requester)( FT_Module    module,
+                          const char*  name );
+
    + +

    A function used to query a given module for a specific interface.

    +

    input

    + + + +
    module +

    The module to be searched.

    +
    name +

    The name of the interface in the module.

    +
    + +
    + +

    FT_Module_Class

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      typedef struct  FT_Module_Class_
+  {
+    FT_ULong               module_flags;
+    FT_Long                module_size;
+    const FT_String*       module_name;
+    FT_Fixed               module_version;
+    FT_Fixed               module_requires;
+
+    const void*            module_interface;
+
+    FT_Module_Constructor  module_init;
+    FT_Module_Destructor   module_done;
+    FT_Module_Requester    get_interface;
+
+  } FT_Module_Class;
+
    + +

    The module class descriptor. While being a public structure necessary for FreeType's module bookkeeping, most of the fields are essentially internal, not to be used directly by an application.

    +

    fields

    + + + + + + + + + + +
    module_flags +

    Bit flags describing the module.

    +
    module_size +

    The size of one module object/instance in bytes.

    +
    module_name +

    The name of the module.

    +
    module_version +

    The version, as a 16.16 fixed number (major.minor).

    +
    module_requires +

    The version of FreeType this module requires, as a 16.16 fixed number (major.minor). Starts at version 2.0, i.e., 0x20000.

    +
    module_interface +

    A typeless pointer to a structure (which varies between different modules) that holds the module's interface functions. This is essentially what get_interface returns.

    +
    module_init +

    The initializing function.

    +
    module_done +

    The finalizing function.

    +
    get_interface +

    The interface requesting function.

    +
    + +
    + +

    FT_Add_Module

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Add_Module( FT_Library              library,
+                 const FT_Module_Class*  clazz );
+
    + +

    Add a new module to a given library instance.

    +

    inout

    + + +
    library +

    A handle to the library object.

    +
    + +

    input

    + + +
    clazz +

    A pointer to class descriptor for the module.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    An error will be returned if a module already exists by that name, or if the module requires a version of FreeType that is too great.

    +
    + +

    FT_Get_Module

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( FT_Module )
+  FT_Get_Module( FT_Library   library,
+                 const char*  module_name );
+
    + +

    Find a module by its name.

    +

    input

    + + + +
    library +

    A handle to the library object.

    +
    module_name +

    The module's name (as an ASCII string).

    +
    + +

    return

    + +

    A module handle. 0 if none was found.

    +

    note

    + +

    FreeType's internal modules aren't documented very well, and you should look up the source code for details.

    +
    + +

    FT_Remove_Module

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Remove_Module( FT_Library  library,
+                    FT_Module   module );
+
    + +

    Remove a given module from a library instance.

    +

    inout

    + + +
    library +

    A handle to a library object.

    +
    + +

    input

    + + +
    module +

    A handle to a module object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The module object is destroyed by the function in case of success.

    +
    + +

    FT_Add_Default_Modules

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( void )
+  FT_Add_Default_Modules( FT_Library  library );
+
    + +

    Add the set of default drivers to a given library object. This is only useful when you create a library object with FT_New_Library (usually to plug a custom memory manager).

    +

    inout

    + + +
    library +

    A handle to a new library object.

    +
    + +
    + +

    FT_FACE_DRIVER_NAME

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
    #define FT_FACE_DRIVER_NAME( face )                                     \
+          ( ( *FT_REINTERPRET_CAST( FT_Module_Class**,                  \
+                                    ( face )->driver ) )->module_name )
+
    + +

    A macro that retrieves the name of a font driver from a face object.

    +

    note

    + +

    The font driver name is a valid module_name for FT_Property_Set and FT_Property_Get. This is not the same as FT_Get_Font_Format.

    +

    since

    + +

    2.11

    +
    + +

    FT_Property_Set

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Property_Set( FT_Library        library,
+                   const FT_String*  module_name,
+                   const FT_String*  property_name,
+                   const void*       value );
+
    + +

    Set a property for a given module.

    +

    input

    + + + + + +
    library +

    A handle to the library the module is part of.

    +
    module_name +

    The module name.

    +
    property_name +

    The property name. Properties are described in section ‘Driver properties’.

    +

    Note that only a few modules have properties.

    +
    value +

    A generic pointer to a variable or structure that gives the new value of the property. The exact definition of value is dependent on the property; see section ‘Driver properties’.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If module_name isn't a valid module name, or property_name doesn't specify a valid property, or if value doesn't represent a valid value for the given property, an error is returned.

    +

    The following example sets property ‘bar’ (a simple integer) in module ‘foo’ to value 1. +

      FT_UInt  bar;
+
+
+  bar = 1;
+  FT_Property_Set( library, "foo", "bar", &bar );
+

    +

    Note that the FreeType Cache sub-system doesn't recognize module property changes. To avoid glyph lookup confusion within the cache you should call FTC_Manager_Reset to completely flush the cache if a module property gets changed after FTC_Manager_New has been called.

    +

    It is not possible to set properties of the FreeType Cache sub-system itself with FT_Property_Set; use ?FTC_Property_Set? instead.

    +

    since

    + +

    2.4.11

    +
    + +

    FT_Property_Get

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Property_Get( FT_Library        library,
+                   const FT_String*  module_name,
+                   const FT_String*  property_name,
+                   void*             value );
+
    + +

    Get a module's property value.

    +

    input

    + + + + +
    library +

    A handle to the library the module is part of.

    +
    module_name +

    The module name.

    +
    property_name +

    The property name. Properties are described in section ‘Driver properties’.

    +
    + +

    inout

    + + +
    value +

    A generic pointer to a variable or structure that gives the value of the property. The exact definition of value is dependent on the property; see section ‘Driver properties’.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If module_name isn't a valid module name, or property_name doesn't specify a valid property, or if value doesn't represent a valid value for the given property, an error is returned.

    +

    The following example gets property ‘baz’ (a range) in module ‘foo’. +

      typedef  range_
+  {
+    FT_Int32  min;
+    FT_Int32  max;
+
+  } range;
+
+  range  baz;
+
+
+  FT_Property_Get( library, "foo", "baz", &baz );
+

    +

    It is not possible to retrieve properties of the FreeType Cache sub-system with FT_Property_Get; use ?FTC_Property_Get? instead.

    +

    since

    + +

    2.4.11

    +
    + +

    FT_Set_Default_Properties

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( void )
+  FT_Set_Default_Properties( FT_Library  library );
+
    + +

    If compilation option FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES is set, this function reads the FREETYPE_PROPERTIES environment variable to control driver properties. See section ‘Driver properties’ for more.

    +

    If the compilation option is not set, this function does nothing.

    +

    FREETYPE_PROPERTIES has the following syntax form (broken here into multiple lines for better readability). +

      <optional whitespace>
+  <module-name1> ':'
+  <property-name1> '=' <property-value1>
+  <whitespace>
+  <module-name2> ':'
+  <property-name2> '=' <property-value2>
+  ...
+

    +

    Example: +

      FREETYPE_PROPERTIES=truetype:interpreter-version=35 \
+                      cff:no-stem-darkening=0
+

    +

    inout

    + + +
    library +

    A handle to a new library object.

    +
    + +

    since

    + +

    2.8

    +
    + +

    FT_New_Library

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( FT_Error )
+  FT_New_Library( FT_Memory    memory,
+                  FT_Library  *alibrary );
+
    + +

    This function is used to create a new FreeType library instance from a given memory object. It is thus possible to use libraries with distinct memory allocators within the same program. Note, however, that the used FT_Memory structure is expected to remain valid for the life of the FT_Library object.

    +

    Normally, you would call this function (followed by a call to FT_Add_Default_Modules or a series of calls to FT_Add_Module, and a call to FT_Set_Default_Properties) instead of FT_Init_FreeType to initialize the FreeType library.

    +

    Don't use FT_Done_FreeType but FT_Done_Library to destroy a library instance.

    +

    input

    + + +
    memory +

    A handle to the original memory object.

    +
    + +

    output

    + + +
    alibrary +

    A pointer to handle of a new library object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    See the discussion of reference counters in the description of FT_Reference_Library.

    +
    + +

    FT_Done_Library

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Done_Library( FT_Library  library );
+
    + +

    Discard a given library object. This closes all drivers and discards all resource objects.

    +

    input

    + + +
    library +

    A handle to the target library.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    See the discussion of reference counters in the description of FT_Reference_Library.

    +
    + +

    FT_Reference_Library

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Reference_Library( FT_Library  library );
+
    + +

    A counter gets initialized to 1 at the time an FT_Library structure is created. This function increments the counter. FT_Done_Library then only destroys a library if the counter is 1, otherwise it simply decrements the counter.

    +

    This function helps in managing life-cycles of structures that reference FT_Library objects.

    +

    input

    + + +
    library +

    A handle to a target library object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    since

    + +

    2.4.2

    +
    + +

    FT_Renderer

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_RendererRec_*  FT_Renderer;
+
    + +

    A handle to a given FreeType renderer. A renderer is a module in charge of converting a glyph's outline image to a bitmap. It supports a single glyph image format, and one or more target surface depths.

    +
    + +

    FT_Renderer_Class

    +

    Defined in FT_RENDER_H (freetype/ftrender.h).

    +
      typedef struct  FT_Renderer_Class_
+  {
+    FT_Module_Class            root;
+
+    FT_Glyph_Format            glyph_format;
+
+    FT_Renderer_RenderFunc     render_glyph;
+    FT_Renderer_TransformFunc  transform_glyph;
+    FT_Renderer_GetCBoxFunc    get_glyph_cbox;
+    FT_Renderer_SetModeFunc    set_mode;
+
+    const FT_Raster_Funcs*     raster_class;
+
+  } FT_Renderer_Class;
+
    + +

    The renderer module class descriptor.

    +

    fields

    + + + + + + + + +
    root +

    The root FT_Module_Class fields.

    +
    glyph_format +

    The glyph image format this renderer handles.

    +
    render_glyph +

    A method used to render the image that is in a given glyph slot into a bitmap.

    +
    transform_glyph +

    A method used to transform the image that is in a given glyph slot.

    +
    get_glyph_cbox +

    A method used to access the glyph's cbox.

    +
    set_mode +

    A method used to pass additional parameters.

    +
    raster_class +

    For FT_GLYPH_FORMAT_OUTLINE renderers only. This is a pointer to its raster's class.

    +
    + +
    + +

    FT_Get_Renderer

    +

    Defined in FT_RENDER_H (freetype/ftrender.h).

    +
      FT_EXPORT( FT_Renderer )
+  FT_Get_Renderer( FT_Library       library,
+                   FT_Glyph_Format  format );
+
    + +

    Retrieve the current renderer for a given glyph format.

    +

    input

    + + + +
    library +

    A handle to the library object.

    +
    format +

    The glyph format.

    +
    + +

    return

    + +

    A renderer handle. 0 if none found.

    +

    note

    + +

    An error will be returned if a module already exists by that name, or if the module requires a version of FreeType that is too great.

    +

    To add a new renderer, simply use FT_Add_Module. To retrieve a renderer by its name, use FT_Get_Module.

    +
    + +

    FT_Set_Renderer

    +

    Defined in FT_RENDER_H (freetype/ftrender.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_Renderer( FT_Library     library,
+                   FT_Renderer    renderer,
+                   FT_UInt        num_params,
+                   FT_Parameter*  parameters );
+
    + +

    Set the current renderer to use, and set additional mode.

    +

    inout

    + + +
    library +

    A handle to the library object.

    +
    + +

    input

    + + + + +
    renderer +

    A handle to the renderer object.

    +
    num_params +

    The number of additional parameters.

    +
    parameters +

    Additional parameters.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    In case of success, the renderer will be used to convert glyph images in the renderer's known format into bitmaps.

    +

    This doesn't change the current renderer for other formats.

    +

    Currently, no FreeType renderer module uses parameters; you should thus always pass NULL as the value.

    +
    + +

    FT_Set_Debug_Hook

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( void )
+  FT_Set_Debug_Hook( FT_Library         library,
+                     FT_UInt            hook_index,
+                     FT_DebugHook_Func  debug_hook );
+
    + +

    Set a debug hook function for debugging the interpreter of a font format.

    +

    While this is a public API function, an application needs access to FreeType's internal header files to do something useful.

    +

    Have a look at the source code of the ttdebug FreeType demo program for an example of its usage.

    +

    inout

    + + +
    library +

    A handle to the library object.

    +
    + +

    input

    + + + +
    hook_index +

    The index of the debug hook. You should use defined enumeration macros like FT_DEBUG_HOOK_TRUETYPE.

    +
    debug_hook +

    The function used to debug the interpreter.

    +
    + +

    note

    + +

    Currently, four debug hook slots are available, but only one (for the TrueType interpreter) is defined.

    +
    + +

    FT_Driver

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_DriverRec_*  FT_Driver;
+
    + +

    A handle to a given FreeType font driver object. A font driver is a module capable of creating faces from font files.

    +
    + +

    FT_DebugHook_Func

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      typedef FT_Error
+  (*FT_DebugHook_Func)( void*  arg );
+
    + +

    A drop-in replacement (or rather a wrapper) for the bytecode or charstring interpreter's main loop function.

    +

    Its job is essentially

    +
      +
    • +

      to activate debug mode to enforce single-stepping,

      +
      • +
    • +

      to call the main loop function to interpret the next opcode, and

      +
      • +
    • +

      to show the changed context to the user.

      +
      • +
    +

    An example for such a main loop function is TT_RunIns (declared in FreeType's internal header file src/truetype/ttinterp.h).

    +

    Have a look at the source code of the ttdebug FreeType demo program for an example of a drop-in replacement.

    +

    inout

    + + +
    arg +

    A typeless pointer, to be cast to the main loop function's data structure (which depends on the font module). For TrueType fonts it is bytecode interpreter's execution context, TT_ExecContext, which is declared in FreeType's internal header file tttypes.h.

    +
    + +
    + +

    FT_DEBUG_HOOK_XXX

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
    #define FT_DEBUG_HOOK_TRUETYPE  0
+
    + +

    A list of named debug hook indices.

    +

    values

    + + +
    FT_DEBUG_HOOK_TRUETYPE +

    This hook index identifies the TrueType bytecode debugger.

    +
    + +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-multiple_masters.html b/modules/freetype2/docs/reference/ft2-multiple_masters.html new file mode 100644 index 0000000000..9b8854a4ee --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-multiple_masters.html @@ -0,0 +1,2296 @@ + + + + + + + + + + + + + + + + + + + + + Multiple Masters - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
    + +
    + +
    + + + + +
    +
    + + + +
    +
    +
    + + + + +
    +
    +
    + + + +
    +
    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Format-Specific API » Multiple Masters

    +
    +

    Multiple Masters

    +

    Synopsis

    +

    The following types and functions are used to manage Multiple Master fonts, i.e., the selection of specific design instances by setting design axis coordinates.

    +

    Besides Adobe MM fonts, the interface supports Apple's TrueType GX and OpenType variation fonts. Some of the routines only work with Adobe MM fonts, others will work with all three types. They are similar enough that a consistent interface makes sense.

    +

    For Adobe MM fonts, macro FT_IS_SFNT returns false. For GX and OpenType variation fonts, it returns true.

    +

    FT_MM_Axis

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      typedef struct  FT_MM_Axis_
+  {
+    FT_String*  name;
+    FT_Long     minimum;
+    FT_Long     maximum;
+
+  } FT_MM_Axis;
+
    + +

    A structure to model a given axis in design space for Multiple Masters fonts.

    +

    This structure can't be used for TrueType GX or OpenType variation fonts.

    +

    fields

    + + + + +
    name +

    The axis's name.

    +
    minimum +

    The axis's minimum design coordinate.

    +
    maximum +

    The axis's maximum design coordinate.

    +
    + +
    + +

    FT_Multi_Master

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      typedef struct  FT_Multi_Master_
+  {
+    FT_UInt     num_axis;
+    FT_UInt     num_designs;
+    FT_MM_Axis  axis[T1_MAX_MM_AXIS];
+
+  } FT_Multi_Master;
+
    + +

    A structure to model the axes and space of a Multiple Masters font.

    +

    This structure can't be used for TrueType GX or OpenType variation fonts.

    +

    fields

    + + + + +
    num_axis +

    Number of axes. Cannot exceed 4.

    +
    num_designs +

    Number of designs; should be normally 2^num_axis even though the Type 1 specification strangely allows for intermediate designs to be present. This number cannot exceed 16.

    +
    axis +

    A table of axis descriptors.

    +
    + +
    + +

    FT_Var_Axis

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      typedef struct  FT_Var_Axis_
+  {
+    FT_String*  name;
+
+    FT_Fixed    minimum;
+    FT_Fixed    def;
+    FT_Fixed    maximum;
+
+    FT_ULong    tag;
+    FT_UInt     strid;
+
+  } FT_Var_Axis;
+
    + +

    A structure to model a given axis in design space for Multiple Masters, TrueType GX, and OpenType variation fonts.

    +

    fields

    + + + + + + + +
    name +

    The axis's name. Not always meaningful for TrueType GX or OpenType variation fonts.

    +
    minimum +

    The axis's minimum design coordinate.

    +
    def +

    The axis's default design coordinate. FreeType computes meaningful default values for Adobe MM fonts.

    +
    maximum +

    The axis's maximum design coordinate.

    +
    tag +

    The axis's tag (the equivalent to ‘name’ for TrueType GX and OpenType variation fonts). FreeType provides default values for Adobe MM fonts if possible.

    +
    strid +

    The axis name entry in the font's ‘name’ table. This is another (and often better) version of the ‘name’ field for TrueType GX or OpenType variation fonts. Not meaningful for Adobe MM fonts.

    +
    + +

    note

    + +

    The fields minimum, def, and maximum are 16.16 fractional values for TrueType GX and OpenType variation fonts. For Adobe MM fonts, the values are whole numbers (i.e., the fractional part is zero).

    +
    + +

    FT_Var_Named_Style

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      typedef struct  FT_Var_Named_Style_
+  {
+    FT_Fixed*  coords;
+    FT_UInt    strid;
+    FT_UInt    psid;   /* since 2.7.1 */
+
+  } FT_Var_Named_Style;
+
    + +

    A structure to model a named instance in a TrueType GX or OpenType variation font.

    +

    This structure can't be used for Adobe MM fonts.

    +

    fields

    + + + + +
    coords +

    The design coordinates for this instance. This is an array with one entry for each axis.

    +
    strid +

    The entry in ‘name’ table identifying this instance.

    +
    psid +

    The entry in ‘name’ table identifying a PostScript name for this instance. Value 0xFFFF indicates a missing entry.

    +
    + +
    + +

    FT_MM_Var

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      typedef struct  FT_MM_Var_
+  {
+    FT_UInt              num_axis;
+    FT_UInt              num_designs;
+    FT_UInt              num_namedstyles;
+    FT_Var_Axis*         axis;
+    FT_Var_Named_Style*  namedstyle;
+
+  } FT_MM_Var;
+
    + +

    A structure to model the axes and space of an Adobe MM, TrueType GX, or OpenType variation font.

    +

    Some fields are specific to one format and not to the others.

    +

    fields

    + + + + + + +
    num_axis +

    The number of axes. The maximum value is 4 for Adobe MM fonts; no limit in TrueType GX or OpenType variation fonts.

    +
    num_designs +

    The number of designs; should be normally 2^num_axis for Adobe MM fonts. Not meaningful for TrueType GX or OpenType variation fonts (where every glyph could have a different number of designs).

    +
    num_namedstyles +

    The number of named styles; a ‘named style’ is a tuple of design coordinates that has a string ID (in the ‘name’ table) associated with it. The font can tell the user that, for example, [Weight=1.5,Width=1.1] is ‘Bold’. Another name for ‘named style’ is ‘named instance’.

    +

    For Adobe Multiple Masters fonts, this value is always zero because the format does not support named styles.

    +
    axis +

    An axis descriptor table. TrueType GX and OpenType variation fonts contain slightly more data than Adobe MM fonts. Memory management of this pointer is done internally by FreeType.

    +
    namedstyle +

    A named style (instance) table. Only meaningful for TrueType GX and OpenType variation fonts. Memory management of this pointer is done internally by FreeType.

    +
    + +
    + +

    FT_Get_Multi_Master

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Multi_Master( FT_Face           face,
+                       FT_Multi_Master  *amaster );
+
    + +

    Retrieve a variation descriptor of a given Adobe MM font.

    +

    This function can't be used with TrueType GX or OpenType variation fonts.

    +

    input

    + + +
    face +

    A handle to the source face.

    +
    + +

    output

    + + +
    amaster +

    The Multiple Masters descriptor.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Get_MM_Var

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_MM_Var( FT_Face      face,
+                 FT_MM_Var*  *amaster );
+
    + +

    Retrieve a variation descriptor for a given font.

    +

    This function works with all supported variation formats.

    +

    input

    + + +
    face +

    A handle to the source face.

    +
    + +

    output

    + + +
    amaster +

    The variation descriptor. Allocates a data structure, which the user must deallocate with a call to FT_Done_MM_Var after use.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Done_MM_Var

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Done_MM_Var( FT_Library   library,
+                  FT_MM_Var   *amaster );
+
    + +

    Free the memory allocated by FT_Get_MM_Var.

    +

    input

    + + +
    library +

    A handle of the face's parent library object that was used in the call to FT_Get_MM_Var to create amaster.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Set_MM_Design_Coordinates

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_MM_Design_Coordinates( FT_Face   face,
+                                FT_UInt   num_coords,
+                                FT_Long*  coords );
+
    + +

    For Adobe MM fonts, choose an interpolated font design through design coordinates.

    +

    This function can't be used with TrueType GX or OpenType variation fonts.

    +

    inout

    + + +
    face +

    A handle to the source face.

    +
    + +

    input

    + + + +
    num_coords +

    The number of available design coordinates. If it is larger than the number of axes, ignore the excess values. If it is smaller than the number of axes, use default values for the remaining axes.

    +
    coords +

    An array of design coordinates.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    [Since 2.8.1] To reset all axes to the default values, call the function with num_coords set to zero and coords set to NULL.

    +

    [Since 2.9] If num_coords is larger than zero, this function sets the FT_FACE_FLAG_VARIATION bit in FT_Face's face_flags field (i.e., FT_IS_VARIATION will return true). If num_coords is zero, this bit flag gets unset.

    +
    + +

    FT_Set_Var_Design_Coordinates

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_Var_Design_Coordinates( FT_Face    face,
+                                 FT_UInt    num_coords,
+                                 FT_Fixed*  coords );
+
    + +

    Choose an interpolated font design through design coordinates.

    +

    This function works with all supported variation formats.

    +

    inout

    + + +
    face +

    A handle to the source face.

    +
    + +

    input

    + + + +
    num_coords +

    The number of available design coordinates. If it is larger than the number of axes, ignore the excess values. If it is smaller than the number of axes, use default values for the remaining axes.

    +
    coords +

    An array of design coordinates.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The design coordinates are 16.16 fractional values for TrueType GX and OpenType variation fonts. For Adobe MM fonts, the values are supposed to be whole numbers (i.e., the fractional part is zero).

    +

    [Since 2.8.1] To reset all axes to the default values, call the function with num_coords set to zero and coords set to NULL. [Since 2.9] ‘Default values’ means the currently selected named instance (or the base font if no named instance is selected).

    +

    [Since 2.9] If num_coords is larger than zero, this function sets the FT_FACE_FLAG_VARIATION bit in FT_Face's face_flags field (i.e., FT_IS_VARIATION will return true). If num_coords is zero, this bit flag gets unset.

    +
    + +

    FT_Get_Var_Design_Coordinates

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Var_Design_Coordinates( FT_Face    face,
+                                 FT_UInt    num_coords,
+                                 FT_Fixed*  coords );
+
    + +

    Get the design coordinates of the currently selected interpolated font.

    +

    This function works with all supported variation formats.

    +

    input

    + + + +
    face +

    A handle to the source face.

    +
    num_coords +

    The number of design coordinates to retrieve. If it is larger than the number of axes, set the excess values to 0.

    +
    + +

    output

    + + +
    coords +

    The design coordinates array.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The design coordinates are 16.16 fractional values for TrueType GX and OpenType variation fonts. For Adobe MM fonts, the values are whole numbers (i.e., the fractional part is zero).

    +

    since

    + +

    2.7.1

    +
    + +

    FT_Set_MM_Blend_Coordinates

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_MM_Blend_Coordinates( FT_Face    face,
+                               FT_UInt    num_coords,
+                               FT_Fixed*  coords );
+
    + +

    Choose an interpolated font design through normalized blend coordinates.

    +

    This function works with all supported variation formats.

    +

    inout

    + + +
    face +

    A handle to the source face.

    +
    + +

    input

    + + + +
    num_coords +

    The number of available design coordinates. If it is larger than the number of axes, ignore the excess values. If it is smaller than the number of axes, use default values for the remaining axes.

    +
    coords +

    The design coordinates array. Each element is a 16.16 fractional value and must be between 0 and 1.0 for Adobe MM fonts, and between -1.0 and 1.0 for TrueType GX and OpenType variation fonts.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    [Since 2.8.1] To reset all axes to the default values, call the function with num_coords set to zero and coords set to NULL. [Since 2.9] ‘Default values’ means the currently selected named instance (or the base font if no named instance is selected).

    +

    [Since 2.9] If num_coords is larger than zero, this function sets the FT_FACE_FLAG_VARIATION bit in FT_Face's face_flags field (i.e., FT_IS_VARIATION will return true). If num_coords is zero, this bit flag gets unset.

    +
    + +

    FT_Get_MM_Blend_Coordinates

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_MM_Blend_Coordinates( FT_Face    face,
+                               FT_UInt    num_coords,
+                               FT_Fixed*  coords );
+
    + +

    Get the normalized blend coordinates of the currently selected interpolated font.

    +

    This function works with all supported variation formats.

    +

    input

    + + + +
    face +

    A handle to the source face.

    +
    num_coords +

    The number of normalized blend coordinates to retrieve. If it is larger than the number of axes, set the excess values to 0.5 for Adobe MM fonts, and to 0 for TrueType GX and OpenType variation fonts.

    +
    + +

    output

    + + +
    coords +

    The normalized blend coordinates array (as 16.16 fractional values).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    since

    + +

    2.7.1

    +
    + +

    FT_Set_Var_Blend_Coordinates

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_Var_Blend_Coordinates( FT_Face    face,
+                                FT_UInt    num_coords,
+                                FT_Fixed*  coords );
+
    + +

    This is another name of FT_Set_MM_Blend_Coordinates.

    +
    + +

    FT_Get_Var_Blend_Coordinates

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Var_Blend_Coordinates( FT_Face    face,
+                                FT_UInt    num_coords,
+                                FT_Fixed*  coords );
+
    + +

    This is another name of FT_Get_MM_Blend_Coordinates.

    +

    since

    + +

    2.7.1

    +
    + +

    FT_Set_MM_WeightVector

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_MM_WeightVector( FT_Face    face,
+                          FT_UInt    len,
+                          FT_Fixed*  weightvector );
+
    + +

    For Adobe MM fonts, choose an interpolated font design by directly setting the weight vector.

    +

    This function can't be used with TrueType GX or OpenType variation fonts.

    +

    inout

    + + +
    face +

    A handle to the source face.

    +
    + +

    input

    + + + +
    len +

    The length of the weight vector array. If it is larger than the number of designs, the extra values are ignored. If it is less than the number of designs, the remaining values are set to zero.

    +
    weightvector +

    An array representing the weight vector.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Adobe Multiple Master fonts limit the number of designs, and thus the length of the weight vector to 16 elements.

    +

    If len is larger than zero, this function sets the FT_FACE_FLAG_VARIATION bit in FT_Face's face_flags field (i.e., FT_IS_VARIATION will return true). If len is zero, this bit flag is unset and the weight vector array is reset to the default values.

    +

    The Adobe documentation also states that the values in the WeightVector array must total 1.0 ± 0.001. In practice this does not seem to be enforced, so is not enforced here, either.

    +

    since

    + +

    2.10

    +
    + +

    FT_Get_MM_WeightVector

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_MM_WeightVector( FT_Face    face,
+                          FT_UInt*   len,
+                          FT_Fixed*  weightvector );
+
    + +

    For Adobe MM fonts, retrieve the current weight vector of the font.

    +

    This function can't be used with TrueType GX or OpenType variation fonts.

    +

    inout

    + + + +
    face +

    A handle to the source face.

    +
    len +

    A pointer to the size of the array to be filled. If the size of the array is less than the number of designs, FT_Err_Invalid_Argument is returned, and len is set to the required size (the number of designs). If the size of the array is greater than the number of designs, the remaining entries are set to 0. On successful completion, len is set to the number of designs (i.e., the number of values written to the array).

    +
    + +

    output

    + + +
    weightvector +

    An array to be filled.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Adobe Multiple Master fonts limit the number of designs, and thus the length of the WeightVector to 16.

    +

    since

    + +

    2.10

    +
    + +

    FT_VAR_AXIS_FLAG_XXX

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
    #define FT_VAR_AXIS_FLAG_HIDDEN  1
+
    + +

    A list of bit flags used in the return value of FT_Get_Var_Axis_Flags.

    +

    values

    + + +
    FT_VAR_AXIS_FLAG_HIDDEN +

    The variation axis should not be exposed to user interfaces.

    +
    + +

    since

    + +

    2.8.1

    +
    + +

    FT_Get_Var_Axis_Flags

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Var_Axis_Flags( FT_MM_Var*  master,
+                         FT_UInt     axis_index,
+                         FT_UInt*    flags );
+
    + +

    Get the ‘flags’ field of an OpenType Variation Axis Record.

    +

    Not meaningful for Adobe MM fonts (*flags is always zero).

    +

    input

    + + + +
    master +

    The variation descriptor.

    +
    axis_index +

    The index of the requested variation axis.

    +
    + +

    output

    + + +
    flags +

    The ‘flags’ field. See FT_VAR_AXIS_FLAG_XXX for possible values.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    since

    + +

    2.8.1

    +
    + +

    FT_Set_Named_Instance

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_Named_Instance( FT_Face  face,
+                         FT_UInt  instance_index );
+
    + +

    Set or change the current named instance.

    +

    input

    + + + +
    face +

    A handle to the source face.

    +
    instance_index +

    The index of the requested instance, starting with value 1. If set to value 0, FreeType switches to font access without a named instance.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The function uses the value of instance_index to set bits 16-30 of the face's face_index field. It also resets any variation applied to the font, and the FT_FACE_FLAG_VARIATION bit of the face's face_flags field gets reset to zero (i.e., FT_IS_VARIATION will return false).

    +

    For Adobe MM fonts (which don't have named instances) this function simply resets the current face to the default instance.

    +

    since

    + +

    2.9

    +
    + +

    FT_Get_Default_Named_Instance

    +

    Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Default_Named_Instance( FT_Face   face,
+                                 FT_UInt  *instance_index );
+
    + +

    Retrieve the index of the default named instance, to be used with FT_Set_Named_Instance.

    +

    The default instance of a variation font is that instance for which the nth axis coordinate is equal to axis[n].def (as specified in the FT_MM_Var structure), with n covering all axes.

    +

    FreeType synthesizes a named instance for the default instance if the font does not contain such an entry.

    +

    input

    + + +
    face +

    A handle to the source face.

    +
    + +

    output

    + + +
    instance_index +

    The index of the default named instance.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    For Adobe MM fonts (which don't have named instances) this function always returns zero for instance_index.

    +

    since

    + +

    2.13.1

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-ot_svg_driver.html b/modules/freetype2/docs/reference/ft2-ot_svg_driver.html new file mode 100644 index 0000000000..7b24a47f0b --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-ot_svg_driver.html @@ -0,0 +1,1358 @@ + + + + + + + + + + + + + + + + + + + + + The SVG driver - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Controlling FreeType Modules » The SVG driver

    +
    +

    The SVG driver

    +

    Synopsis

    +

    By default, FreeType can only load the ‘SVG ’ table of OpenType fonts if configuration macro FT_CONFIG_OPTION_SVG is defined. To make it render SVG glyphs, an external SVG rendering library is needed. All details on the interface between FreeType and the external library via function hooks can be found in section ‘OpenType SVG Fonts’.

    +

    The OT-SVG driver's module name is ‘ot-svg’; it supports a single property called svg-hooks, documented below in the ‘Driver properties’ section.

    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-ot_validation.html b/modules/freetype2/docs/reference/ft2-ot_validation.html new file mode 100644 index 0000000000..4838df6bdb --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-ot_validation.html @@ -0,0 +1,1502 @@ + + + + + + + + + + + + + + + + + + + + + OpenType Validation - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    + + + +

    FreeType » Docs » Miscellaneous » OpenType Validation

    +
    +

    OpenType Validation

    +

    Synopsis

    +

    This section contains the declaration of functions to validate some OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).

    +

    FT_OpenType_Validate

    +

    Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h).

    +
      FT_EXPORT( FT_Error )
+  FT_OpenType_Validate( FT_Face    face,
+                        FT_UInt    validation_flags,
+                        FT_Bytes  *BASE_table,
+                        FT_Bytes  *GDEF_table,
+                        FT_Bytes  *GPOS_table,
+                        FT_Bytes  *GSUB_table,
+                        FT_Bytes  *JSTF_table );
+
    + +

    Validate various OpenType tables to assure that all offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming).

    +

    input

    + + + +
    face +

    A handle to the input face.

    +
    validation_flags +

    A bit field that specifies the tables to be validated. See FT_VALIDATE_OTXXX for possible values.

    +
    + +

    output

    + + + + + + +
    BASE_table +

    A pointer to the BASE table.

    +
    GDEF_table +

    A pointer to the GDEF table.

    +
    GPOS_table +

    A pointer to the GPOS table.

    +
    GSUB_table +

    A pointer to the GSUB table.

    +
    JSTF_table +

    A pointer to the JSTF table.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function only works with OpenType fonts, returning an error otherwise.

    +

    After use, the application should deallocate the five tables with FT_OpenType_Free. A NULL value indicates that the table either doesn't exist in the font, or the application hasn't asked for validation.

    +
    + +

    FT_OpenType_Free

    +

    Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h).

    +
      FT_EXPORT( void )
+  FT_OpenType_Free( FT_Face   face,
+                    FT_Bytes  table );
+
    + +

    Free the buffer allocated by OpenType validator.

    +

    input

    + + + +
    face +

    A handle to the input face.

    +
    table +

    The pointer to the buffer that is allocated by FT_OpenType_Validate.

    +
    + +

    note

    + +

    This function must be used to free the buffer allocated by FT_OpenType_Validate only.

    +
    + +

    FT_VALIDATE_OTXXX

    +

    Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h).

    +
    #define FT_VALIDATE_BASE  0x0100
+#define FT_VALIDATE_GDEF  0x0200
+#define FT_VALIDATE_GPOS  0x0400
+#define FT_VALIDATE_GSUB  0x0800
+#define FT_VALIDATE_JSTF  0x1000
+#define FT_VALIDATE_MATH  0x2000
+
+#define FT_VALIDATE_OT  ( FT_VALIDATE_BASE | \
+                          FT_VALIDATE_GDEF | \
+                          FT_VALIDATE_GPOS | \
+                          FT_VALIDATE_GSUB | \
+                          FT_VALIDATE_JSTF | \
+                          FT_VALIDATE_MATH )
+
    + +

    A list of bit-field constants used with FT_OpenType_Validate to indicate which OpenType tables should be validated.

    +

    values

    + + + + + + + + +
    FT_VALIDATE_BASE +

    Validate BASE table.

    +
    FT_VALIDATE_GDEF +

    Validate GDEF table.

    +
    FT_VALIDATE_GPOS +

    Validate GPOS table.

    +
    FT_VALIDATE_GSUB +

    Validate GSUB table.

    +
    FT_VALIDATE_JSTF +

    Validate JSTF table.

    +
    FT_VALIDATE_MATH +

    Validate MATH table.

    +
    FT_VALIDATE_OT +

    Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).

    +
    + +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-other_api_data.html b/modules/freetype2/docs/reference/ft2-other_api_data.html new file mode 100644 index 0000000000..0b346b1ca1 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-other_api_data.html @@ -0,0 +1,1553 @@ + + + + + + + + + + + + + + + + + + + + + Other API Data - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Core API » Other API Data

    +
    +

    Other API Data

    +

    Synopsis

    +

    Other structures, enumerations, and macros. Deprecated functions are also listed here.

    +

    FT_Face_Internal

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_Face_InternalRec_*  FT_Face_Internal;
+
    + +

    An opaque handle to an FT_Face_InternalRec structure that models the private data of a given FT_Face object.

    +

    This structure might change between releases of FreeType 2 and is not generally available to client applications.

    +
    + +

    FT_Size_Internal

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_Size_InternalRec_*  FT_Size_Internal;
+
    + +

    An opaque handle to an FT_Size_InternalRec structure, used to model private data of a given FT_Size object.

    +
    + +

    FT_Slot_Internal

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_Slot_InternalRec_*  FT_Slot_Internal;
+
    + +

    An opaque handle to an FT_Slot_InternalRec structure, used to model private data of a given FT_GlyphSlot object.

    +
    + +

    FT_SubGlyph

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_SubGlyphRec_*  FT_SubGlyph;
+
    + +

    The subglyph structure is an internal object used to describe subglyphs (for example, in the case of composites).

    +

    note

    + +

    The subglyph implementation is not part of the high-level API, hence the forward structure declaration.

    +

    You can however retrieve subglyph information with FT_Get_SubGlyph_Info.

    +
    + +

    FT_HAS_FAST_GLYPHS

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
    #define FT_HAS_FAST_GLYPHS( face )  0
+
    + +

    Deprecated.

    +
    + +

    FT_Face_CheckTrueTypePatents

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Bool )
+  FT_Face_CheckTrueTypePatents( FT_Face  face );
+
    + +

    Deprecated, does nothing.

    +

    input

    + + +
    face +

    A face handle.

    +
    + +

    return

    + +

    Always returns false.

    +

    note

    + +

    Since May 2010, TrueType hinting is no longer patented.

    +

    since

    + +

    2.3.5

    +
    + +

    FT_Face_SetUnpatentedHinting

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Bool )
+  FT_Face_SetUnpatentedHinting( FT_Face  face,
+                                FT_Bool  value );
+
    + +

    Deprecated, does nothing.

    +

    input

    + + + +
    face +

    A face handle.

    +
    value +

    New boolean setting.

    +
    + +

    return

    + +

    Always returns false.

    +

    note

    + +

    Since May 2010, TrueType hinting is no longer patented.

    +

    since

    + +

    2.3.5

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-outline_processing.html b/modules/freetype2/docs/reference/ft2-outline_processing.html new file mode 100644 index 0000000000..3b0ed76059 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-outline_processing.html @@ -0,0 +1,2417 @@ + + + + + + + + + + + + + + + + + + + + + Outline Processing - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    +
    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Support API » Outline Processing

    +
    +

    Outline Processing

    +

    Synopsis

    +

    This section contains routines used to create and destroy scalable glyph images known as ‘outlines’. These can also be measured, transformed, and converted into bitmaps and pixmaps.

    +

    FT_Outline

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef struct  FT_Outline_
+  {
+    short       n_contours;      /* number of contours in glyph        */
+    short       n_points;        /* number of points in the glyph      */
+
+    FT_Vector*  points;          /* the outline's points               */
+    char*       tags;            /* the points flags                   */
+    short*      contours;        /* the contour end points             */
+
+    int         flags;           /* outline masks                      */
+
+  } FT_Outline;
+
    + +

    This structure is used to describe an outline to the scan-line converter.

    +

    fields

    + + + + + + + +
    n_contours +

    The number of contours in the outline.

    +
    n_points +

    The number of points in the outline.

    +
    points +

    A pointer to an array of n_points FT_Vector elements, giving the outline's point coordinates.

    +
    tags +

    A pointer to an array of n_points chars, giving each outline point's type.

    +

    If bit 0 is unset, the point is ‘off’ the curve, i.e., a Bezier control point, while it is ‘on’ if set.

    +

    Bit 1 is meaningful for ‘off’ points only. If set, it indicates a third-order Bezier arc control point; and a second-order control point if unset.

    +

    If bit 2 is set, bits 5-7 contain the drop-out mode (as defined in the OpenType specification; the value is the same as the argument to the ‘SCANMODE’ instruction).

    +

    Bits 3 and 4 are reserved for internal purposes.

    +
    contours +

    An array of n_contours shorts, giving the end point of each contour within the outline. For example, the first contour is defined by the points ‘0’ to contours[0], the second one is defined by the points contours[0]+1 to contours[1], etc.

    +
    flags +

    A set of bit flags used to characterize the outline and give hints to the scan-converter and hinter on how to convert/grid-fit it. See FT_OUTLINE_XXX.

    +
    + +

    note

    + +

    The B/W rasterizer only checks bit 2 in the tags array for the first point of each contour. The drop-out mode as given with FT_OUTLINE_IGNORE_DROPOUTS, FT_OUTLINE_SMART_DROPOUTS, and FT_OUTLINE_INCLUDE_STUBS in flags is then overridden.

    +
    + +

    FT_Outline_New

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_New( FT_Library   library,
+                  FT_UInt      numPoints,
+                  FT_Int       numContours,
+                  FT_Outline  *anoutline );
+
    + +

    Create a new outline of a given size.

    +

    input

    + + + + +
    library +

    A handle to the library object from where the outline is allocated. Note however that the new outline will not necessarily be freed, when destroying the library, by FT_Done_FreeType.

    +
    numPoints +

    The maximum number of points within the outline. Must be smaller than or equal to 0xFFFF (65535).

    +
    numContours +

    The maximum number of contours within the outline. This value must be in the range 0 to numPoints.

    +
    + +

    output

    + + +
    anoutline +

    A handle to the new outline.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The reason why this function takes a library parameter is simply to use the library's memory allocator.

    +
    + +

    FT_Outline_Done

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_Done( FT_Library   library,
+                   FT_Outline*  outline );
+
    + +

    Destroy an outline created with FT_Outline_New.

    +

    input

    + + + +
    library +

    A handle of the library object used to allocate the outline.

    +
    outline +

    A pointer to the outline object to be discarded.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If the outline's ‘owner’ field is not set, only the outline descriptor will be released.

    +
    + +

    FT_Outline_Copy

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_Copy( const FT_Outline*  source,
+                   FT_Outline        *target );
+
    + +

    Copy an outline into another one. Both objects must have the same sizes (number of points & number of contours) when this function is called.

    +

    input

    + + +
    source +

    A handle to the source outline.

    +
    + +

    output

    + + +
    target +

    A handle to the target outline.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Outline_Translate

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( void )
+  FT_Outline_Translate( const FT_Outline*  outline,
+                        FT_Pos             xOffset,
+                        FT_Pos             yOffset );
+
    + +

    Apply a simple translation to the points of an outline.

    +

    inout

    + + +
    outline +

    A pointer to the target outline descriptor.

    +
    + +

    input

    + + + +
    xOffset +

    The horizontal offset.

    +
    yOffset +

    The vertical offset.

    +
    + +
    + +

    FT_Outline_Transform

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( void )
+  FT_Outline_Transform( const FT_Outline*  outline,
+                        const FT_Matrix*   matrix );
+
    + +

    Apply a simple 2x2 matrix to all of an outline's points. Useful for applying rotations, slanting, flipping, etc.

    +

    inout

    + + +
    outline +

    A pointer to the target outline descriptor.

    +
    + +

    input

    + + +
    matrix +

    A pointer to the transformation matrix.

    +
    + +

    note

    + +

    You can use FT_Outline_Translate if you need to translate the outline's points.

    +
    + +

    FT_Outline_Embolden

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_Embolden( FT_Outline*  outline,
+                       FT_Pos       strength );
+
    + +

    Embolden an outline. The new outline will be at most 4 times strength pixels wider and higher. You may think of the left and bottom borders as unchanged.

    +

    Negative strength values to reduce the outline thickness are possible also.

    +

    inout

    + + +
    outline +

    A handle to the target outline.

    +
    + +

    input

    + + +
    strength +

    How strong the glyph is emboldened. Expressed in 26.6 pixel format.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The used algorithm to increase or decrease the thickness of the glyph doesn't change the number of points; this means that certain situations like acute angles or intersections are sometimes handled incorrectly.

    +

    If you need ‘better’ metrics values you should call FT_Outline_Get_CBox or FT_Outline_Get_BBox.

    +

    To get meaningful results, font scaling values must be set with functions like FT_Set_Char_Size before calling FT_Render_Glyph.

    +

    example

    +
      FT_Load_Glyph( face, index, FT_LOAD_DEFAULT );
+
+  if ( face->glyph->format == FT_GLYPH_FORMAT_OUTLINE )
+    FT_Outline_Embolden( &face->glyph->outline, strength );
+
    +
    + +

    FT_Outline_EmboldenXY

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_EmboldenXY( FT_Outline*  outline,
+                         FT_Pos       xstrength,
+                         FT_Pos       ystrength );
+
    + +

    Embolden an outline. The new outline will be xstrength pixels wider and ystrength pixels higher. Otherwise, it is similar to FT_Outline_Embolden, which uses the same strength in both directions.

    +

    since

    + +

    2.4.10

    +
    + +

    FT_Outline_Reverse

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( void )
+  FT_Outline_Reverse( FT_Outline*  outline );
+
    + +

    Reverse the drawing direction of an outline. This is used to ensure consistent fill conventions for mirrored glyphs.

    +

    inout

    + + +
    outline +

    A pointer to the target outline descriptor.

    +
    + +

    note

    + +

    This function toggles the bit flag FT_OUTLINE_REVERSE_FILL in the outline's flags field.

    +

    It shouldn't be used by a normal client application, unless it knows what it is doing.

    +
    + +

    FT_Outline_Check

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_Check( FT_Outline*  outline );
+
    + +

    Check the contents of an outline descriptor.

    +

    input

    + + +
    outline +

    A handle to a source outline.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    An empty outline, or an outline with a single point only is also valid.

    +
    + +

    FT_Outline_Get_CBox

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( void )
+  FT_Outline_Get_CBox( const FT_Outline*  outline,
+                       FT_BBox           *acbox );
+
    + +

    Return an outline's ‘control box’. The control box encloses all the outline's points, including Bezier control points. Though it coincides with the exact bounding box for most glyphs, it can be slightly larger in some situations (like when rotating an outline that contains Bezier outside arcs).

    +

    Computing the control box is very fast, while getting the bounding box can take much more time as it needs to walk over all segments and arcs in the outline. To get the latter, you can use the ‘ftbbox’ component, which is dedicated to this single task.

    +

    input

    + + +
    outline +

    A pointer to the source outline descriptor.

    +
    + +

    output

    + + +
    acbox +

    The outline's control box.

    +
    + +

    note

    + +

    See FT_Glyph_Get_CBox for a discussion of tricky fonts.

    +
    + +

    FT_Outline_Get_BBox

    +

    Defined in FT_BBOX_H (freetype/ftbbox.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_Get_BBox( FT_Outline*  outline,
+                       FT_BBox     *abbox );
+
    + +

    Compute the exact bounding box of an outline. This is slower than computing the control box. However, it uses an advanced algorithm that returns very quickly when the two boxes coincide. Otherwise, the outline Bezier arcs are traversed to extract their extrema.

    +

    input

    + + +
    outline +

    A pointer to the source outline.

    +
    + +

    output

    + + +
    abbox +

    The outline's exact bounding box.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If the font is tricky and the glyph has been loaded with FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get reasonable values for the BBox it is necessary to load the glyph at a large ppem value (so that the hinting instructions can properly shift and scale the subglyphs), then extracting the BBox, which can be eventually converted back to font units.

    +
    + +

    FT_Outline_Get_Bitmap

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_Get_Bitmap( FT_Library        library,
+                         FT_Outline*       outline,
+                         const FT_Bitmap  *abitmap );
+
    + +

    Render an outline within a bitmap. The outline's image is simply OR-ed to the target bitmap.

    +

    input

    + + + +
    library +

    A handle to a FreeType library object.

    +
    outline +

    A pointer to the source outline descriptor.

    +
    + +

    inout

    + + +
    abitmap +

    A pointer to the target bitmap descriptor.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function does not create the bitmap, it only renders an outline image within the one you pass to it! Consequently, the various fields in abitmap should be set accordingly.

    +

    It will use the raster corresponding to the default glyph format.

    +

    The value of the num_grays field in abitmap is ignored. If you select the gray-level rasterizer, and you want less than 256 gray levels, you have to use FT_Outline_Render directly.

    +
    + +

    FT_Outline_Render

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_Render( FT_Library         library,
+                     FT_Outline*        outline,
+                     FT_Raster_Params*  params );
+
    + +

    Render an outline within a bitmap using the current scan-convert.

    +

    input

    + + + +
    library +

    A handle to a FreeType library object.

    +
    outline +

    A pointer to the source outline descriptor.

    +
    + +

    inout

    + + +
    params +

    A pointer to an FT_Raster_Params structure used to describe the rendering operation.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This advanced function uses FT_Raster_Params as an argument. The field params.source will be set to outline before the scan converter is called, which means that the value you give to it is actually ignored. Either params.target must point to preallocated bitmap, or FT_RASTER_FLAG_DIRECT must be set in params.flags allowing FreeType rasterizer to be used for direct composition, translucency, etc. See FT_Raster_Params for more details.

    +
    + +

    FT_Outline_Decompose

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Outline_Decompose( FT_Outline*              outline,
+                        const FT_Outline_Funcs*  func_interface,
+                        void*                    user );
+
    + +

    Walk over an outline's structure to decompose it into individual segments and Bezier arcs. This function also emits ‘move to’ operations to indicate the start of new contours in the outline.

    +

    input

    + + + +
    outline +

    A pointer to the source target.

    +
    func_interface +

    A table of ‘emitters’, i.e., function pointers called during decomposition to indicate path operations.

    +
    + +

    inout

    + + +
    user +

    A typeless pointer that is passed to each emitter during the decomposition. It can be used to store the state during the decomposition.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Degenerate contours, segments, and Bezier arcs may be reported. In most cases, it is best to filter these out before using the outline for stroking or other path modification purposes (which may cause degenerate segments to become non-degenrate and visible, like when stroke caps are used or the path is otherwise outset). Some glyph outlines may contain deliberate degenerate single points for mark attachement.

    +

    Similarly, the function returns success for an empty outline also (doing nothing, that is, not calling any emitter); if necessary, you should filter this out, too.

    +
    + +

    FT_Outline_Funcs

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef struct  FT_Outline_Funcs_
+  {
+    FT_Outline_MoveToFunc   move_to;
+    FT_Outline_LineToFunc   line_to;
+    FT_Outline_ConicToFunc  conic_to;
+    FT_Outline_CubicToFunc  cubic_to;
+
+    int                     shift;
+    FT_Pos                  delta;
+
+  } FT_Outline_Funcs;
+
    + +

    A structure to hold various function pointers used during outline decomposition in order to emit segments, conic, and cubic Beziers.

    +

    fields

    + + + + + + + +
    move_to +

    The ‘move to’ emitter.

    +
    line_to +

    The segment emitter.

    +
    conic_to +

    The second-order Bezier arc emitter.

    +
    cubic_to +

    The third-order Bezier arc emitter.

    +
    shift +

    The shift that is applied to coordinates before they are sent to the emitter.

    +
    delta +

    The delta that is applied to coordinates before they are sent to the emitter, but after the shift.

    +
    + +

    note

    + +

    The point coordinates sent to the emitters are the transformed version of the original coordinates (this is important for high accuracy during scan-conversion). The transformation is simple: +

      x' = (x << shift) - delta
+  y' = (y << shift) - delta
+

    +

    Set the values of shift and delta to 0 to get the original point coordinates.

    +
    + +

    FT_Outline_MoveToFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef int
+  (*FT_Outline_MoveToFunc)( const FT_Vector*  to,
+                            void*             user );
+
+#define FT_Outline_MoveTo_Func  FT_Outline_MoveToFunc
+
    + +

    A function pointer type used to describe the signature of a ‘move to’ function during outline walking/decomposition.

    +

    A ‘move to’ is emitted to start a new contour in an outline.

    +

    input

    + + + +
    to +

    A pointer to the target point of the ‘move to’.

    +
    user +

    A typeless pointer, which is passed from the caller of the decomposition function.

    +
    + +

    return

    + +

    Error code. 0 means success.

    +
    + +

    FT_Outline_LineToFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef int
+  (*FT_Outline_LineToFunc)( const FT_Vector*  to,
+                            void*             user );
+
+#define FT_Outline_LineTo_Func  FT_Outline_LineToFunc
+
    + +

    A function pointer type used to describe the signature of a ‘line to’ function during outline walking/decomposition.

    +

    A ‘line to’ is emitted to indicate a segment in the outline.

    +

    input

    + + + +
    to +

    A pointer to the target point of the ‘line to’.

    +
    user +

    A typeless pointer, which is passed from the caller of the decomposition function.

    +
    + +

    return

    + +

    Error code. 0 means success.

    +
    + +

    FT_Outline_ConicToFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef int
+  (*FT_Outline_ConicToFunc)( const FT_Vector*  control,
+                             const FT_Vector*  to,
+                             void*             user );
+
+#define FT_Outline_ConicTo_Func  FT_Outline_ConicToFunc
+
    + +

    A function pointer type used to describe the signature of a ‘conic to’ function during outline walking or decomposition.

    +

    A ‘conic to’ is emitted to indicate a second-order Bezier arc in the outline.

    +

    input

    + + + + +
    control +

    An intermediate control point between the last position and the new target in to.

    +
    to +

    A pointer to the target end point of the conic arc.

    +
    user +

    A typeless pointer, which is passed from the caller of the decomposition function.

    +
    + +

    return

    + +

    Error code. 0 means success.

    +
    + +

    FT_Outline_CubicToFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef int
+  (*FT_Outline_CubicToFunc)( const FT_Vector*  control1,
+                             const FT_Vector*  control2,
+                             const FT_Vector*  to,
+                             void*             user );
+
+#define FT_Outline_CubicTo_Func  FT_Outline_CubicToFunc
+
    + +

    A function pointer type used to describe the signature of a ‘cubic to’ function during outline walking or decomposition.

    +

    A ‘cubic to’ is emitted to indicate a third-order Bezier arc.

    +

    input

    + + + + + +
    control1 +

    A pointer to the first Bezier control point.

    +
    control2 +

    A pointer to the second Bezier control point.

    +
    to +

    A pointer to the target end point.

    +
    user +

    A typeless pointer, which is passed from the caller of the decomposition function.

    +
    + +

    return

    + +

    Error code. 0 means success.

    +
    + +

    FT_Orientation

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      typedef enum  FT_Orientation_
+  {
+    FT_ORIENTATION_TRUETYPE   = 0,
+    FT_ORIENTATION_POSTSCRIPT = 1,
+    FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE,
+    FT_ORIENTATION_FILL_LEFT  = FT_ORIENTATION_POSTSCRIPT,
+    FT_ORIENTATION_NONE
+
+  } FT_Orientation;
+
    + +

    A list of values used to describe an outline's contour orientation.

    +

    The TrueType and PostScript specifications use different conventions to determine whether outline contours should be filled or unfilled.

    +

    values

    + + + + + + +
    FT_ORIENTATION_TRUETYPE +

    According to the TrueType specification, clockwise contours must be filled, and counter-clockwise ones must be unfilled.

    +
    FT_ORIENTATION_POSTSCRIPT +

    According to the PostScript specification, counter-clockwise contours must be filled, and clockwise ones must be unfilled.

    +
    FT_ORIENTATION_FILL_RIGHT +

    This is identical to FT_ORIENTATION_TRUETYPE, but is used to remember that in TrueType, everything that is to the right of the drawing direction of a contour must be filled.

    +
    FT_ORIENTATION_FILL_LEFT +

    This is identical to FT_ORIENTATION_POSTSCRIPT, but is used to remember that in PostScript, everything that is to the left of the drawing direction of a contour must be filled.

    +
    FT_ORIENTATION_NONE +

    The orientation cannot be determined. That is, different parts of the glyph have different orientation.

    +
    + +
    + +

    FT_Outline_Get_Orientation

    +

    Defined in FT_OUTLINE_H (freetype/ftoutln.h).

    +
      FT_EXPORT( FT_Orientation )
+  FT_Outline_Get_Orientation( FT_Outline*  outline );
+
    + +

    This function analyzes a glyph outline and tries to compute its fill orientation (see FT_Orientation). This is done by integrating the total area covered by the outline. The positive integral corresponds to the clockwise orientation and FT_ORIENTATION_POSTSCRIPT is returned. The negative integral corresponds to the counter-clockwise orientation and FT_ORIENTATION_TRUETYPE is returned.

    +

    Note that this will return FT_ORIENTATION_TRUETYPE for empty outlines.

    +

    input

    + + +
    outline +

    A handle to the source outline.

    +
    + +

    return

    + +

    The orientation.

    +
    + +

    FT_OUTLINE_XXX

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
    #define FT_OUTLINE_NONE             0x0
+#define FT_OUTLINE_OWNER            0x1
+#define FT_OUTLINE_EVEN_ODD_FILL    0x2
+#define FT_OUTLINE_REVERSE_FILL     0x4
+#define FT_OUTLINE_IGNORE_DROPOUTS  0x8
+#define FT_OUTLINE_SMART_DROPOUTS   0x10
+#define FT_OUTLINE_INCLUDE_STUBS    0x20
+#define FT_OUTLINE_OVERLAP          0x40
+
+#define FT_OUTLINE_HIGH_PRECISION   0x100
+#define FT_OUTLINE_SINGLE_PASS      0x200
+
+
+  /* these constants are deprecated; use the corresponding */
+  /* `FT_OUTLINE_XXX` values instead                       */
+#define ft_outline_none             FT_OUTLINE_NONE
+#define ft_outline_owner            FT_OUTLINE_OWNER
+#define ft_outline_even_odd_fill    FT_OUTLINE_EVEN_ODD_FILL
+#define ft_outline_reverse_fill     FT_OUTLINE_REVERSE_FILL
+#define ft_outline_ignore_dropouts  FT_OUTLINE_IGNORE_DROPOUTS
+#define ft_outline_high_precision   FT_OUTLINE_HIGH_PRECISION
+#define ft_outline_single_pass      FT_OUTLINE_SINGLE_PASS
+
    + +

    A list of bit-field constants used for the flags in an outline's flags field.

    +

    values

    + + + + + + + + + + + +
    FT_OUTLINE_NONE +

    Value 0 is reserved.

    +
    FT_OUTLINE_OWNER +

    If set, this flag indicates that the outline's field arrays (i.e., points, flags, and contours) are ‘owned’ by the outline object, and should thus be freed when it is destroyed.

    +
    FT_OUTLINE_EVEN_ODD_FILL +

    By default, outlines are filled using the non-zero winding rule. If set to 1, the outline will be filled using the even-odd fill rule (only works with the smooth rasterizer).

    +
    FT_OUTLINE_REVERSE_FILL +

    By default, outside contours of an outline are oriented in clock-wise direction, as defined in the TrueType specification. This flag is set if the outline uses the opposite direction (typically for Type 1 fonts). This flag is ignored by the scan converter.

    +
    FT_OUTLINE_IGNORE_DROPOUTS +

    By default, the scan converter will try to detect drop-outs in an outline and correct the glyph bitmap to ensure consistent shape continuity. If set, this flag hints the scan-line converter to ignore such cases. See below for more information.

    +
    FT_OUTLINE_SMART_DROPOUTS +

    Select smart dropout control. If unset, use simple dropout control. Ignored if FT_OUTLINE_IGNORE_DROPOUTS is set. See below for more information.

    +
    FT_OUTLINE_INCLUDE_STUBS +

    If set, turn pixels on for ‘stubs’, otherwise exclude them. Ignored if FT_OUTLINE_IGNORE_DROPOUTS is set. See below for more information.

    +
    FT_OUTLINE_OVERLAP +

    [Since 2.10.3] This flag indicates that this outline contains overlapping contours and the anti-aliased renderer should perform oversampling to mitigate possible artifacts. This flag should not be set for well designed glyphs without overlaps because it quadruples the rendering time.

    +
    FT_OUTLINE_HIGH_PRECISION +

    This flag indicates that the scan-line converter should try to convert this outline to bitmaps with the highest possible quality. It is typically set for small character sizes. Note that this is only a hint that might be completely ignored by a given scan-converter.

    +
    FT_OUTLINE_SINGLE_PASS +

    This flag is set to force a given scan-converter to only use a single pass over the outline to render a bitmap glyph image. Normally, it is set for very large character sizes. It is only a hint that might be completely ignored by a given scan-converter.

    +
    + +

    note

    + +

    The flags FT_OUTLINE_IGNORE_DROPOUTS, FT_OUTLINE_SMART_DROPOUTS, and FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth rasterizer.

    +

    There exists a second mechanism to pass the drop-out mode to the B/W rasterizer; see the tags field in FT_Outline.

    +

    Please refer to the description of the ‘SCANTYPE’ instruction in the OpenType specification (in file ttinst1.doc) how simple drop-outs, smart drop-outs, and stubs are defined.

    +
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    FreeType » Docs » Controlling FreeType Modules » Parameter Tags

    +
    +

    Parameter Tags

    +

    Synopsis

    +

    This section contains macros for the FT_Parameter structure that are used with various functions to activate some special functionality or different behaviour of various components of FreeType.

    +

    FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY

    +
    #define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY \
+          FT_MAKE_TAG( 'i', 'g', 'p', 'f' )
+
+
+  /* this constant is deprecated */
+#define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY \
+          FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
+
    + +

    A tag for FT_Parameter to make FT_Open_Face ignore typographic family names in the ‘name’ table (introduced in OpenType version 1.4). Use this for backward compatibility with legacy systems that have a four-faces-per-family restriction.

    +

    since

    + +

    2.8

    +
    + +

    FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY

    +
    #define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY \
+          FT_MAKE_TAG( 'i', 'g', 'p', 's' )
+
+
+  /* this constant is deprecated */
+#define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY \
+          FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
+
    + +

    A tag for FT_Parameter to make FT_Open_Face ignore typographic subfamily names in the ‘name’ table (introduced in OpenType version 1.4). Use this for backward compatibility with legacy systems that have a four-faces-per-family restriction.

    +

    since

    + +

    2.8

    +
    + +

    FT_PARAM_TAG_INCREMENTAL

    +
    #define FT_PARAM_TAG_INCREMENTAL \
+          FT_MAKE_TAG( 'i', 'n', 'c', 'r' )
+
    + +

    An FT_Parameter tag to be used with FT_Open_Face to indicate incremental glyph loading.

    +
    + +

    FT_PARAM_TAG_IGNORE_SBIX

    +
    #define FT_PARAM_TAG_IGNORE_SBIX \
+          FT_MAKE_TAG( 'i', 's', 'b', 'x' )
+
    + +

    A tag for FT_Parameter to make FT_Open_Face ignore an ‘sbix’ table while loading a font. Use this if FT_FACE_FLAG_SBIX is set and you want to access the outline glyphs in the font.

    +
    + +

    FT_PARAM_TAG_LCD_FILTER_WEIGHTS

    +
    #define FT_PARAM_TAG_LCD_FILTER_WEIGHTS \
+          FT_MAKE_TAG( 'l', 'c', 'd', 'f' )
+
    + +

    An FT_Parameter tag to be used with FT_Face_Properties. The corresponding argument specifies the five LCD filter weights for a given face (if using FT_LOAD_TARGET_LCD, for example), overriding the global default values or the values set up with FT_Library_SetLcdFilterWeights.

    +

    since

    + +

    2.8

    +
    + +

    FT_PARAM_TAG_RANDOM_SEED

    +
    #define FT_PARAM_TAG_RANDOM_SEED \
+          FT_MAKE_TAG( 's', 'e', 'e', 'd' )
+
    + +

    An FT_Parameter tag to be used with FT_Face_Properties. The corresponding 32bit signed integer argument overrides the font driver's random seed value with a face-specific one; see random-seed.

    +

    since

    + +

    2.8

    +
    + +

    FT_PARAM_TAG_STEM_DARKENING

    +
    #define FT_PARAM_TAG_STEM_DARKENING \
+          FT_MAKE_TAG( 'd', 'a', 'r', 'k' )
+
    + +

    An FT_Parameter tag to be used with FT_Face_Properties. The corresponding Boolean argument specifies whether to apply stem darkening, overriding the global default values or the values set up with FT_Property_Set (see no-stem-darkening).

    +

    This is a passive setting that only takes effect if the font driver or autohinter honors it, which the CFF, Type 1, and CID drivers always do, but the autohinter only in ‘light’ hinting mode (as of version 2.9).

    +

    since

    + +

    2.8

    +
    + +

    FT_PARAM_TAG_UNPATENTED_HINTING

    +
    #define FT_PARAM_TAG_UNPATENTED_HINTING \
+          FT_MAKE_TAG( 'u', 'n', 'p', 'a' )
+
    + +

    Deprecated, no effect.

    +

    Previously: A constant used as the tag of an FT_Parameter structure to indicate that unpatented methods only should be used by the TrueType bytecode interpreter for a typeface opened by FT_Open_Face.

    +
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    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-pcf_driver.html b/modules/freetype2/docs/reference/ft2-pcf_driver.html new file mode 100644 index 0000000000..d37d71990d --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-pcf_driver.html @@ -0,0 +1,1358 @@ + + + + + + + + + + + + + + + + + + + + + The PCF driver - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Format-Specific API » PFR Fonts

    +
    +

    PFR Fonts

    +

    Synopsis

    +

    This section contains the declaration of PFR-specific functions.

    +

    FT_Get_PFR_Metrics

    +

    Defined in FT_PFR_H (freetype/ftpfr.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_PFR_Metrics( FT_Face    face,
+                      FT_UInt   *aoutline_resolution,
+                      FT_UInt   *ametrics_resolution,
+                      FT_Fixed  *ametrics_x_scale,
+                      FT_Fixed  *ametrics_y_scale );
+
    + +

    Return the outline and metrics resolutions of a given PFR face.

    +

    input

    + + +
    face +

    Handle to the input face. It can be a non-PFR face.

    +
    + +

    output

    + + + + + +
    aoutline_resolution +

    Outline resolution. This is equivalent to face->units_per_EM for non-PFR fonts. Optional (parameter can be NULL).

    +
    ametrics_resolution +

    Metrics resolution. This is equivalent to outline_resolution for non-PFR fonts. Optional (parameter can be NULL).

    +
    ametrics_x_scale +

    A 16.16 fixed-point number used to scale distance expressed in metrics units to device subpixels. This is equivalent to face->size->x_scale, but for metrics only. Optional (parameter can be NULL).

    +
    ametrics_y_scale +

    Same as ametrics_x_scale but for the vertical direction. optional (parameter can be NULL).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If the input face is not a PFR, this function will return an error. However, in all cases, it will return valid values.

    +
    + +

    FT_Get_PFR_Kerning

    +

    Defined in FT_PFR_H (freetype/ftpfr.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_PFR_Kerning( FT_Face     face,
+                      FT_UInt     left,
+                      FT_UInt     right,
+                      FT_Vector  *avector );
+
    + +

    Return the kerning pair corresponding to two glyphs in a PFR face. The distance is expressed in metrics units, unlike the result of FT_Get_Kerning.

    +

    input

    + + + + +
    face +

    A handle to the input face.

    +
    left +

    Index of the left glyph.

    +
    +

    Index of the right glyph.

    +
    + +

    output

    + + +
    avector +

    A kerning vector.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function always return distances in original PFR metrics units. This is unlike FT_Get_Kerning with the FT_KERNING_UNSCALED mode, which always returns distances converted to outline units.

    +

    You can use the value of the x_scale and y_scale parameters returned by FT_Get_PFR_Metrics to scale these to device subpixels.

    +
    + +

    FT_Get_PFR_Advance

    +

    Defined in FT_PFR_H (freetype/ftpfr.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_PFR_Advance( FT_Face   face,
+                      FT_UInt   gindex,
+                      FT_Pos   *aadvance );
+
    + +

    Return a given glyph advance, expressed in original metrics units, from a PFR font.

    +

    input

    + + + +
    face +

    A handle to the input face.

    +
    gindex +

    The glyph index.

    +
    + +

    output

    + + +
    aadvance +

    The glyph advance in metrics units.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    You can use the x_scale or y_scale results of FT_Get_PFR_Metrics to convert the advance to device subpixels (i.e., 1/64 of pixels).

    +
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    FreeType » Docs » General Remarks » Preamble

    +
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    Preamble

    +

    Synopsis

    +

    FreeType is a library that provides access to glyphs in font files. It scales the glyph images and their metrics to a requested size, and it rasterizes the glyph images to produce pixel or subpixel alpha coverage bitmaps.

    +

    Note that FreeType is not a text layout engine. You have to use higher-level libraries like HarfBuzz, Pango, or ICU for that.

    +

    Note also that FreeType does not perform alpha blending or compositing the resulting bitmaps or pixmaps by itself. Use your favourite graphics library (for example, Cairo or Skia) to further process FreeType's output.

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    FreeType » Docs » Controlling FreeType Modules » Driver properties

    +
    +

    Driver properties

    +

    Synopsis

    +

    Driver modules can be controlled by setting and unsetting properties, using the functions FT_Property_Set and FT_Property_Get. This section documents the available properties, together with auxiliary macros and structures.

    +

    FT_HINTING_XXX

    +

    Defined in FT_DRIVER_H (freetype/ftdriver.h).

    +
    #define FT_HINTING_FREETYPE  0
+#define FT_HINTING_ADOBE     1
+
+  /* these constants (introduced in 2.4.12) are deprecated */
+#define FT_CFF_HINTING_FREETYPE  FT_HINTING_FREETYPE
+#define FT_CFF_HINTING_ADOBE     FT_HINTING_ADOBE
+
    + +

    A list of constants used for the hinting-engine property to select the hinting engine for CFF, Type 1, and CID fonts.

    +

    values

    + + + +
    FT_HINTING_FREETYPE +

    Use the old FreeType hinting engine.

    +
    FT_HINTING_ADOBE +

    Use the hinting engine contributed by Adobe.

    +
    + +

    since

    + +

    2.9

    +
    + +

    hinting-engine

    +

    Thanks to Adobe, which contributed a new hinting (and parsing) engine, an application can select between ‘freetype’ and ‘adobe’ if compiled with CFF_CONFIG_OPTION_OLD_ENGINE. If this configuration macro isn't defined, ‘hinting-engine’ does nothing.

    +

    The same holds for the Type 1 and CID modules if compiled with T1_CONFIG_OPTION_OLD_ENGINE.

    +

    For the ‘cff’ module, the default engine is ‘adobe’. For both the ‘type1’ and ‘t1cid’ modules, the default engine is ‘adobe’, too.

    +

    note

    + +

    This property can be used with FT_Property_Get also.

    +

    This property can be set via the FREETYPE_PROPERTIES environment variable (using values ‘adobe’ or ‘freetype’).

    +

    example

    + +

    The following example code demonstrates how to select Adobe's hinting engine for the ‘cff’ module (omitting the error handling). +

      FT_Library  library;
+  FT_UInt     hinting_engine = FT_HINTING_ADOBE;
+
+
+  FT_Init_FreeType( &library );
+
+  FT_Property_Set( library, "cff",
+                            "hinting-engine", &hinting_engine );
+

    +

    since

    + +

    2.4.12 (for ‘cff’ module)

    +

    2.9 (for ‘type1’ and ‘t1cid’ modules)

    +
    + +

    no-stem-darkening

    +

    All glyphs that pass through the auto-hinter will be emboldened unless this property is set to TRUE. The same is true for the CFF, Type 1, and CID font modules if the ‘Adobe’ engine is selected (which is the default).

    +

    Stem darkening emboldens glyphs at smaller sizes to make them more readable on common low-DPI screens when using linear alpha blending and gamma correction, see FT_Render_Glyph. When not using linear alpha blending and gamma correction, glyphs will appear heavy and fuzzy!

    +

    Gamma correction essentially lightens fonts since shades of grey are shifted to higher pixel values (= higher brightness) to match the original intention to the reality of our screens. The side-effect is that glyphs ‘thin out’. Mac OS X and Adobe's proprietary font rendering library implement a counter-measure: stem darkening at smaller sizes where shades of gray dominate. By emboldening a glyph slightly in relation to its pixel size, individual pixels get higher coverage of filled-in outlines and are therefore ‘blacker’. This counteracts the ‘thinning out’ of glyphs, making text remain readable at smaller sizes.

    +

    For the auto-hinter, stem-darkening is experimental currently and thus switched off by default (that is, no-stem-darkening is set to TRUE by default). Total consistency with the CFF driver is not achieved right now because the emboldening method differs and glyphs must be scaled down on the Y-axis to keep outline points inside their precomputed blue zones. The smaller the size (especially 9ppem and down), the higher the loss of emboldening versus the CFF driver.

    +

    Note that stem darkening is never applied if FT_LOAD_NO_SCALE is set.

    +

    note

    + +

    This property can be used with FT_Property_Get also.

    +

    This property can be set via the FREETYPE_PROPERTIES environment variable (using values 1 and 0 for ‘on’ and ‘off’, respectively). It can also be set per face using FT_Face_Properties with FT_PARAM_TAG_STEM_DARKENING.

    +

    example

    +
      FT_Library  library;
+  FT_Bool     no_stem_darkening = TRUE;
+
+
+  FT_Init_FreeType( &library );
+
+  FT_Property_Set( library, "cff",
+                            "no-stem-darkening", &no_stem_darkening );
+
    +

    since

    + +

    2.4.12 (for ‘cff’ module)

    +

    2.6.2 (for ‘autofitter’ module)

    +

    2.9 (for ‘type1’ and ‘t1cid’ modules)

    +
    + +

    darkening-parameters

    +

    By default, the Adobe hinting engine, as used by the CFF, Type 1, and CID font drivers, darkens stems as follows (if the no-stem-darkening property isn't set): +

      stem width <= 0.5px:   darkening amount = 0.4px
+  stem width  = 1px:     darkening amount = 0.275px
+  stem width  = 1.667px: darkening amount = 0.275px
+  stem width >= 2.333px: darkening amount = 0px
+

    +

    and piecewise linear in-between. At configuration time, these four control points can be set with the macro CFF_CONFIG_OPTION_DARKENING_PARAMETERS; the CFF, Type 1, and CID drivers share these values. At runtime, the control points can be changed using the darkening-parameters property (see the example below that demonstrates this for the Type 1 driver).

    +

    The x values give the stem width, and the y values the darkening amount. The unit is 1000th of pixels. All coordinate values must be positive; the x values must be monotonically increasing; the y values must be monotonically decreasing and smaller than or equal to 500 (corresponding to half a pixel); the slope of each linear piece must be shallower than -1 (e.g., -.4).

    +

    The auto-hinter provides this property, too, as an experimental feature. See no-stem-darkening for more.

    +

    note

    + +

    This property can be used with FT_Property_Get also.

    +

    This property can be set via the FREETYPE_PROPERTIES environment variable, using eight comma-separated integers without spaces. Here the above example, using \ to break the line for readability. +

      FREETYPE_PROPERTIES=\
+  type1:darkening-parameters=500,300,1000,200,1500,100,2000,0
+

    +

    example

    +
      FT_Library  library;
+  FT_Int      darken_params[8] = {  500, 300,   // x1, y1
+                                   1000, 200,   // x2, y2
+                                   1500, 100,   // x3, y3
+                                   2000,   0 }; // x4, y4
+
+
+  FT_Init_FreeType( &library );
+
+  FT_Property_Set( library, "type1",
+                            "darkening-parameters", darken_params );
+
    +

    since

    + +

    2.5.1 (for ‘cff’ module)

    +

    2.6.2 (for ‘autofitter’ module)

    +

    2.9 (for ‘type1’ and ‘t1cid’ modules)

    +
    + +

    random-seed

    +

    By default, the seed value for the CFF ‘random’ operator and the similar ‘0 28 callothersubr pop’ command for the Type 1 and CID drivers is set to a random value. However, mainly for debugging purposes, it is often necessary to use a known value as a seed so that the pseudo-random number sequences generated by ‘random’ are repeatable.

    +

    The random-seed property does that. Its argument is a signed 32bit integer; if the value is zero or negative, the seed given by the intitialRandomSeed private DICT operator in a CFF file gets used (or a default value if there is no such operator). If the value is positive, use it instead of initialRandomSeed, which is consequently ignored.

    +

    note

    + +

    This property can be set via the FREETYPE_PROPERTIES environment variable. It can also be set per face using FT_Face_Properties with FT_PARAM_TAG_RANDOM_SEED.

    +

    since

    + +

    2.8 (for ‘cff’ module)

    +

    2.9 (for ‘type1’ and ‘t1cid’ modules)

    +
    + +

    no-long-family-names

    +

    If PCF_CONFIG_OPTION_LONG_FAMILY_NAMES is active while compiling FreeType, the PCF driver constructs long family names.

    +

    There are many PCF fonts just called ‘Fixed’ which look completely different, and which have nothing to do with each other. When selecting ‘Fixed’ in KDE or Gnome one gets results that appear rather random, the style changes often if one changes the size and one cannot select some fonts at all. The improve this situation, the PCF module prepends the foundry name (plus a space) to the family name. It also checks whether there are ‘wide’ characters; all put together, family names like ‘Sony Fixed’ or ‘Misc Fixed Wide’ are constructed.

    +

    If no-long-family-names is set, this feature gets switched off.

    +

    note

    + +

    This property can be used with FT_Property_Get also.

    +

    This property can be set via the FREETYPE_PROPERTIES environment variable (using values 1 and 0 for ‘on’ and ‘off’, respectively).

    +

    example

    +
      FT_Library  library;
+  FT_Bool     no_long_family_names = TRUE;
+
+
+  FT_Init_FreeType( &library );
+
+  FT_Property_Set( library, "pcf",
+                            "no-long-family-names",
+                            &no_long_family_names );
+
    +

    since

    + +

    2.8

    +
    + +

    TT_INTERPRETER_VERSION_XXX

    +

    Defined in FT_DRIVER_H (freetype/ftdriver.h).

    +
    #define TT_INTERPRETER_VERSION_35  35
+#define TT_INTERPRETER_VERSION_38  38
+#define TT_INTERPRETER_VERSION_40  40
+
    + +

    A list of constants used for the interpreter-version property to select the hinting engine for Truetype fonts.

    +

    The numeric value in the constant names represents the version number as returned by the ‘GETINFO’ bytecode instruction.

    +

    values

    + + + + +
    TT_INTERPRETER_VERSION_35 +

    Version 35 corresponds to MS rasterizer v.1.7 as used e.g. in Windows 98; only grayscale and B/W rasterizing is supported.

    +
    TT_INTERPRETER_VERSION_38 +

    Version 38 is the same Version 40. The original ‘Infinality’ code is no longer available.

    +
    TT_INTERPRETER_VERSION_40 +

    Version 40 corresponds to MS rasterizer v.2.1; it is roughly equivalent to the hinting provided by DirectWrite ClearType (as can be found, for example, in Microsoft's Edge Browser on Windows 10). It is used in FreeType to select the ‘minimal’ subpixel hinting code, a stripped-down and higher performance version of the ‘Infinality’ code.

    +
    + +

    note

    + +

    This property controls the behaviour of the bytecode interpreter and thus how outlines get hinted. It does not control how glyph get rasterized! In particular, it does not control subpixel color filtering.

    +

    If FreeType has not been compiled with the configuration option TT_CONFIG_OPTION_SUBPIXEL_HINTING, selecting version 38 or 40 causes an FT_Err_Unimplemented_Feature error.

    +

    Depending on the graphics framework, Microsoft uses different bytecode and rendering engines. As a consequence, the version numbers returned by a call to the ‘GETINFO’ bytecode instruction are more convoluted than desired.

    +

    Here are two tables that try to shed some light on the possible values for the MS rasterizer engine, together with the additional features introduced by it. +

      GETINFO framework               version feature
+  -------------------------------------------------------------------
+      3   GDI (Win 3.1),            v1.0  16-bit, first version
+          TrueImage
+     33   GDI (Win NT 3.1),         v1.5  32-bit
+          HP Laserjet
+     34   GDI (Win 95)              v1.6  font smoothing,
+                                          new SCANTYPE opcode
+     35   GDI (Win 98/2000)         v1.7  (UN)SCALED_COMPONENT_OFFSET
+                                            bits in composite glyphs
+     36   MGDI (Win CE 2)           v1.6+ classic ClearType
+     37   GDI (XP and later),       v1.8  ClearType
+          GDI+ old (before Vista)
+     38   GDI+ old (Vista, Win 7),  v1.9  subpixel ClearType,
+          WPF                             Y-direction ClearType,
+                                          additional error checking
+     39   DWrite (before Win 8)     v2.0  subpixel ClearType flags
+                                            in GETINFO opcode,
+                                          bug fixes
+     40   GDI+ (after Win 7),       v2.1  Y-direction ClearType flag
+          DWrite (Win 8)                    in GETINFO opcode,
+                                          Gray ClearType
+

    +

    The ‘version’ field gives a rough orientation only, since some applications provided certain features much earlier (as an example, Microsoft Reader used subpixel and Y-direction ClearType already in Windows 2000). Similarly, updates to a given framework might include improved hinting support. +

       version   sampling          rendering        comment
+            x        y       x           y
+  --------------------------------------------------------------
+    v1.0   normal  normal  B/W           B/W    bi-level
+    v1.6   high    high    gray          gray   grayscale
+    v1.8   high    normal  color-filter  B/W    (GDI) ClearType
+    v1.9   high    high    color-filter  gray   Color ClearType
+    v2.1   high    normal  gray          B/W    Gray ClearType
+    v2.1   high    high    gray          gray   Gray ClearType
+

    +

    Color and Gray ClearType are the two available variants of ‘Y-direction ClearType’, meaning grayscale rasterization along the Y-direction; the name used in the TrueType specification for this feature is ‘symmetric smoothing’. ‘Classic ClearType’ is the original algorithm used before introducing a modified version in Win XP. Another name for v1.6's grayscale rendering is ‘font smoothing’, and ‘Color ClearType’ is sometimes also called ‘DWrite ClearType’. To differentiate between today's Color ClearType and the earlier ClearType variant with B/W rendering along the vertical axis, the latter is sometimes called ‘GDI ClearType’.

    +

    ‘Normal’ and ‘high’ sampling describe the (virtual) resolution to access the rasterized outline after the hinting process. ‘Normal’ means 1 sample per grid line (i.e., B/W). In the current Microsoft implementation, ‘high’ means an extra virtual resolution of 16x16 (or 16x1) grid lines per pixel for bytecode instructions like ‘MIRP’. After hinting, these 16 grid lines are mapped to 6x5 (or 6x1) grid lines for color filtering if Color ClearType is activated.

    +

    Note that ‘Gray ClearType’ is essentially the same as v1.6's grayscale rendering. However, the GETINFO instruction handles it differently: v1.6 returns bit 12 (hinting for grayscale), while v2.1 returns bits 13 (hinting for ClearType), 18 (symmetrical smoothing), and 19 (Gray ClearType). Also, this mode respects bits 2 and 3 for the version 1 gasp table exclusively (like Color ClearType), while v1.6 only respects the values of version 0 (bits 0 and 1).

    +

    Keep in mind that the features of the above interpreter versions might not map exactly to FreeType features or behavior because it is a fundamentally different library with different internals.

    +
    + +

    interpreter-version

    +

    Currently, three versions are available, two representing the bytecode interpreter with subpixel hinting support (old ‘Infinality’ code and new stripped-down and higher performance ‘minimal’ code) and one without, respectively. The default is subpixel support if TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined, and no subpixel support otherwise (since it isn't available then).

    +

    If subpixel hinting is on, many TrueType bytecode instructions behave differently compared to B/W or grayscale rendering (except if ‘native ClearType’ is selected by the font). Microsoft's main idea is to render at a much increased horizontal resolution, then sampling down the created output to subpixel precision. However, many older fonts are not suited to this and must be specially taken care of by applying (hardcoded) tweaks in Microsoft's interpreter.

    +

    Details on subpixel hinting and some of the necessary tweaks can be found in Greg Hitchcock's whitepaper at ‘https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx’. Note that FreeType currently doesn't really ‘subpixel hint’ (6x1, 6x2, or 6x5 supersampling) like discussed in the paper. Depending on the chosen interpreter, it simply ignores instructions on vertical stems to arrive at very similar results.

    +

    note

    + +

    This property can be used with FT_Property_Get also.

    +

    This property can be set via the FREETYPE_PROPERTIES environment variable (using values ‘35’, ‘38’, or ‘40’).

    +

    example

    + +

    The following example code demonstrates how to deactivate subpixel hinting (omitting the error handling). +

      FT_Library  library;
+  FT_Face     face;
+  FT_UInt     interpreter_version = TT_INTERPRETER_VERSION_35;
+
+
+  FT_Init_FreeType( &library );
+
+  FT_Property_Set( library, "truetype",
+                            "interpreter-version",
+                            &interpreter_version );
+

    +

    since

    + +

    2.5

    +
    + +

    svg-hooks

    +

    Set up the interface between FreeType and an extern SVG rendering library like ‘librsvg’. All details on the function hooks can be found in section ‘OpenType SVG Fonts’.

    +

    example

    + +

    The following example code expects that the four hook functions svg_* are defined elsewhere. Error handling is omitted, too. +

      FT_Library  library;
+  SVG_RendererHooks  hooks = {
+                       (SVG_Lib_Init_Func)svg_init,
+                       (SVG_Lib_Free_Func)svg_free,
+                       (SVG_Lib_Render_Func)svg_render,
+                       (SVG_Lib_Preset_Slot_Func)svg_preset_slot };
+
+
+  FT_Init_FreeType( &library );
+
+  FT_Property_Set( library, "ot-svg",
+                            "svg-hooks", &hooks );
+

    +

    since

    + +

    2.12

    +
    + +

    glyph-to-script-map

    +

    Experimental only

    +

    The auto-hinter provides various script modules to hint glyphs. Examples of supported scripts are Latin or CJK. Before a glyph is auto-hinted, the Unicode character map of the font gets examined, and the script is then determined based on Unicode character ranges, see below.

    +

    OpenType fonts, however, often provide much more glyphs than character codes (small caps, superscripts, ligatures, swashes, etc.), to be controlled by so-called ‘features’. Handling OpenType features can be quite complicated and thus needs a separate library on top of FreeType.

    +

    The mapping between glyph indices and scripts (in the auto-hinter sense, see the FT_AUTOHINTER_SCRIPT_XXX values) is stored as an array with num_glyphs elements, as found in the font's FT_Face structure. The glyph-to-script-map property returns a pointer to this array, which can be modified as needed. Note that the modification should happen before the first glyph gets processed by the auto-hinter so that the global analysis of the font shapes actually uses the modified mapping.

    +

    example

    + +

    The following example code demonstrates how to access it (omitting the error handling). +

      FT_Library                library;
+  FT_Face                   face;
+  FT_Prop_GlyphToScriptMap  prop;
+
+
+  FT_Init_FreeType( &library );
+  FT_New_Face( library, "foo.ttf", 0, &face );
+
+  prop.face = face;
+
+  FT_Property_Get( library, "autofitter",
+                            "glyph-to-script-map", &prop );
+
+  // adjust `prop.map' as needed right here
+
+  FT_Load_Glyph( face, ..., FT_LOAD_FORCE_AUTOHINT );
+

    +

    since

    + +

    2.4.11

    +
    + +

    FT_AUTOHINTER_SCRIPT_XXX

    +

    Defined in FT_DRIVER_H (freetype/ftdriver.h).

    +
    #define FT_AUTOHINTER_SCRIPT_NONE   0
+#define FT_AUTOHINTER_SCRIPT_LATIN  1
+#define FT_AUTOHINTER_SCRIPT_CJK    2
+#define FT_AUTOHINTER_SCRIPT_INDIC  3
+
    + +

    Experimental only

    +

    A list of constants used for the glyph-to-script-map property to specify the script submodule the auto-hinter should use for hinting a particular glyph.

    +

    values

    + + + + + +
    FT_AUTOHINTER_SCRIPT_NONE +

    Don't auto-hint this glyph.

    +
    FT_AUTOHINTER_SCRIPT_LATIN +

    Apply the latin auto-hinter. For the auto-hinter, ‘latin’ is a very broad term, including Cyrillic and Greek also since characters from those scripts share the same design constraints.

    +

    By default, characters from the following Unicode ranges are assigned to this submodule.

    +
      U+0020 - U+007F  // Basic Latin (no control characters)
+  U+00A0 - U+00FF  // Latin-1 Supplement (no control characters)
+  U+0100 - U+017F  // Latin Extended-A
+  U+0180 - U+024F  // Latin Extended-B
+  U+0250 - U+02AF  // IPA Extensions
+  U+02B0 - U+02FF  // Spacing Modifier Letters
+  U+0300 - U+036F  // Combining Diacritical Marks
+  U+0370 - U+03FF  // Greek and Coptic
+  U+0400 - U+04FF  // Cyrillic
+  U+0500 - U+052F  // Cyrillic Supplement
+  U+1D00 - U+1D7F  // Phonetic Extensions
+  U+1D80 - U+1DBF  // Phonetic Extensions Supplement
+  U+1DC0 - U+1DFF  // Combining Diacritical Marks Supplement
+  U+1E00 - U+1EFF  // Latin Extended Additional
+  U+1F00 - U+1FFF  // Greek Extended
+  U+2000 - U+206F  // General Punctuation
+  U+2070 - U+209F  // Superscripts and Subscripts
+  U+20A0 - U+20CF  // Currency Symbols
+  U+2150 - U+218F  // Number Forms
+  U+2460 - U+24FF  // Enclosed Alphanumerics
+  U+2C60 - U+2C7F  // Latin Extended-C
+  U+2DE0 - U+2DFF  // Cyrillic Extended-A
+  U+2E00 - U+2E7F  // Supplemental Punctuation
+  U+A640 - U+A69F  // Cyrillic Extended-B
+  U+A720 - U+A7FF  // Latin Extended-D
+  U+FB00 - U+FB06  // Alphab. Present. Forms (Latin Ligatures)
+ U+1D400 - U+1D7FF // Mathematical Alphanumeric Symbols
+ U+1F100 - U+1F1FF // Enclosed Alphanumeric Supplement
+
    +
    FT_AUTOHINTER_SCRIPT_CJK +

    Apply the CJK auto-hinter, covering Chinese, Japanese, Korean, old Vietnamese, and some other scripts.

    +

    By default, characters from the following Unicode ranges are assigned to this submodule.

    +
      U+1100 - U+11FF  // Hangul Jamo
+  U+2E80 - U+2EFF  // CJK Radicals Supplement
+  U+2F00 - U+2FDF  // Kangxi Radicals
+  U+2FF0 - U+2FFF  // Ideographic Description Characters
+  U+3000 - U+303F  // CJK Symbols and Punctuation
+  U+3040 - U+309F  // Hiragana
+  U+30A0 - U+30FF  // Katakana
+  U+3100 - U+312F  // Bopomofo
+  U+3130 - U+318F  // Hangul Compatibility Jamo
+  U+3190 - U+319F  // Kanbun
+  U+31A0 - U+31BF  // Bopomofo Extended
+  U+31C0 - U+31EF  // CJK Strokes
+  U+31F0 - U+31FF  // Katakana Phonetic Extensions
+  U+3200 - U+32FF  // Enclosed CJK Letters and Months
+  U+3300 - U+33FF  // CJK Compatibility
+  U+3400 - U+4DBF  // CJK Unified Ideographs Extension A
+  U+4DC0 - U+4DFF  // Yijing Hexagram Symbols
+  U+4E00 - U+9FFF  // CJK Unified Ideographs
+  U+A960 - U+A97F  // Hangul Jamo Extended-A
+  U+AC00 - U+D7AF  // Hangul Syllables
+  U+D7B0 - U+D7FF  // Hangul Jamo Extended-B
+  U+F900 - U+FAFF  // CJK Compatibility Ideographs
+  U+FE10 - U+FE1F  // Vertical forms
+  U+FE30 - U+FE4F  // CJK Compatibility Forms
+  U+FF00 - U+FFEF  // Halfwidth and Fullwidth Forms
+ U+1B000 - U+1B0FF // Kana Supplement
+ U+1D300 - U+1D35F // Tai Xuan Hing Symbols
+ U+1F200 - U+1F2FF // Enclosed Ideographic Supplement
+ U+20000 - U+2A6DF // CJK Unified Ideographs Extension B
+ U+2A700 - U+2B73F // CJK Unified Ideographs Extension C
+ U+2B740 - U+2B81F // CJK Unified Ideographs Extension D
+ U+2F800 - U+2FA1F // CJK Compatibility Ideographs Supplement
+
    +
    FT_AUTOHINTER_SCRIPT_INDIC +

    Apply the indic auto-hinter, covering all major scripts from the Indian sub-continent and some other related scripts like Thai, Lao, or Tibetan.

    +

    By default, characters from the following Unicode ranges are assigned to this submodule.

    +
      U+0900 - U+0DFF  // Indic Range
+  U+0F00 - U+0FFF  // Tibetan
+  U+1900 - U+194F  // Limbu
+  U+1B80 - U+1BBF  // Sundanese
+  U+A800 - U+A82F  // Syloti Nagri
+  U+ABC0 - U+ABFF  // Meetei Mayek
+ U+11800 - U+118DF // Sharada
+
    +

    Note that currently Indic support is rudimentary only, missing blue zone support.

    +
    + +

    since

    + +

    2.4.11

    +
    + +

    FT_Prop_GlyphToScriptMap

    +

    Defined in FT_DRIVER_H (freetype/ftdriver.h).

    +
      typedef struct  FT_Prop_GlyphToScriptMap_
+  {
+    FT_Face     face;
+    FT_UShort*  map;
+
+  } FT_Prop_GlyphToScriptMap;
+
    + +

    Experimental only

    +

    The data exchange structure for the glyph-to-script-map property.

    +

    since

    + +

    2.4.11

    +
    + +

    fallback-script

    +

    Experimental only

    +

    If no auto-hinter script module can be assigned to a glyph, a fallback script gets assigned to it (see also the glyph-to-script-map property). By default, this is FT_AUTOHINTER_SCRIPT_CJK. Using the fallback-script property, this fallback value can be changed.

    +

    note

    + +

    This property can be used with FT_Property_Get also.

    +

    It's important to use the right timing for changing this value: The creation of the glyph-to-script map that eventually uses the fallback script value gets triggered either by setting or reading a face-specific property like glyph-to-script-map, or by auto-hinting any glyph from that face. In particular, if you have already created an FT_Face structure but not loaded any glyph (using the auto-hinter), a change of the fallback script will affect this face.

    +

    example

    +
      FT_Library  library;
+  FT_UInt     fallback_script = FT_AUTOHINTER_SCRIPT_NONE;
+
+
+  FT_Init_FreeType( &library );
+
+  FT_Property_Set( library, "autofitter",
+                            "fallback-script", &fallback_script );
+
    +

    since

    + +

    2.4.11

    +
    + +

    default-script

    +

    Experimental only

    +

    If FreeType gets compiled with FT_CONFIG_OPTION_USE_HARFBUZZ to make the HarfBuzz library access OpenType features for getting better glyph coverages, this property sets the (auto-fitter) script to be used for the default (OpenType) script data of a font's GSUB table. Features for the default script are intended for all scripts not explicitly handled in GSUB; an example is a ‘dlig’ feature, containing the combination of the characters ‘T’, ‘E’, and ‘L’ to form a ‘TEL’ ligature.

    +

    By default, this is FT_AUTOHINTER_SCRIPT_LATIN. Using the default-script property, this default value can be changed.

    +

    note

    + +

    This property can be used with FT_Property_Get also.

    +

    It's important to use the right timing for changing this value: The creation of the glyph-to-script map that eventually uses the default script value gets triggered either by setting or reading a face-specific property like glyph-to-script-map, or by auto-hinting any glyph from that face. In particular, if you have already created an FT_Face structure but not loaded any glyph (using the auto-hinter), a change of the default script will affect this face.

    +

    example

    +
      FT_Library  library;
+  FT_UInt     default_script = FT_AUTOHINTER_SCRIPT_NONE;
+
+
+  FT_Init_FreeType( &library );
+
+  FT_Property_Set( library, "autofitter",
+                            "default-script", &default_script );
+
    +

    since

    + +

    2.5.3

    +
    + +

    increase-x-height

    +

    For ppem values in the range 6 <= ppem <= increase-x-height, round up the font's x height much more often than normally. If the value is set to 0, which is the default, this feature is switched off. Use this property to improve the legibility of small font sizes if necessary.

    +

    note

    + +

    This property can be used with FT_Property_Get also.

    +

    Set this value right after calling FT_Set_Char_Size, but before loading any glyph (using the auto-hinter).

    +

    example

    +
      FT_Library               library;
+  FT_Face                  face;
+  FT_Prop_IncreaseXHeight  prop;
+
+
+  FT_Init_FreeType( &library );
+  FT_New_Face( library, "foo.ttf", 0, &face );
+  FT_Set_Char_Size( face, 10 * 64, 0, 72, 0 );
+
+  prop.face  = face;
+  prop.limit = 14;
+
+  FT_Property_Set( library, "autofitter",
+                            "increase-x-height", &prop );
+
    +

    since

    + +

    2.4.11

    +
    + +

    FT_Prop_IncreaseXHeight

    +

    Defined in FT_DRIVER_H (freetype/ftdriver.h).

    +
      typedef struct  FT_Prop_IncreaseXHeight_
+  {
+    FT_Face  face;
+    FT_UInt  limit;
+
+  } FT_Prop_IncreaseXHeight;
+
    + +

    The data exchange structure for the increase-x-height property.

    +
    + +

    warping

    +

    Obsolete

    +

    This property was always experimental and probably never worked correctly. It was entirely removed from the FreeType 2 sources. This entry is only here for historical reference.

    +

    Warping only worked in ‘normal’ auto-hinting mode replacing it. The idea of the code was to slightly scale and shift a glyph along the non-hinted dimension (which is usually the horizontal axis) so that as much of its segments were aligned (more or less) to the grid. To find out a glyph's optimal scaling and shifting value, various parameter combinations were tried and scored.

    +

    since

    + +

    2.6

    +
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    +
    + +
    + + + + +
    +
    +
    +
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    FreeType » Docs » Support API » Quick retrieval of advance values

    +
    +

    Quick retrieval of advance values

    +

    Synopsis

    +

    This section contains functions to quickly extract advance values without handling glyph outlines, if possible.

    +

    FT_Get_Advance

    +

    Defined in FT_ADVANCES_H (freetype/ftadvanc.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Advance( FT_Face    face,
+                  FT_UInt    gindex,
+                  FT_Int32   load_flags,
+                  FT_Fixed  *padvance );
+
    + +

    Retrieve the advance value of a given glyph outline in an FT_Face.

    +

    input

    + + + + +
    face +

    The source FT_Face handle.

    +
    gindex +

    The glyph index.

    +
    load_flags +

    A set of bit flags similar to those used when calling FT_Load_Glyph, used to determine what kind of advances you need.

    +
    + +

    output

    + + +
    padvance +

    The advance value. If scaling is performed (based on the value of load_flags), the advance value is in 16.16 format. Otherwise, it is in font units.

    +

    If FT_LOAD_VERTICAL_LAYOUT is set, this is the vertical advance corresponding to a vertical layout. Otherwise, it is the horizontal advance in a horizontal layout.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function may fail if you use FT_ADVANCE_FLAG_FAST_ONLY and if the corresponding font backend doesn't have a quick way to retrieve the advances.

    +

    A scaled advance is returned in 16.16 format but isn't transformed by the affine transformation specified by FT_Set_Transform.

    +
    + +

    FT_Get_Advances

    +

    Defined in FT_ADVANCES_H (freetype/ftadvanc.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Advances( FT_Face    face,
+                   FT_UInt    start,
+                   FT_UInt    count,
+                   FT_Int32   load_flags,
+                   FT_Fixed  *padvances );
+
    + +

    Retrieve the advance values of several glyph outlines in an FT_Face.

    +

    input

    + + + + + +
    face +

    The source FT_Face handle.

    +
    start +

    The first glyph index.

    +
    count +

    The number of advance values you want to retrieve.

    +
    load_flags +

    A set of bit flags similar to those used when calling FT_Load_Glyph.

    +
    + +

    output

    + + +
    padvance +

    The advance values. This array, to be provided by the caller, must contain at least count elements.

    +

    If scaling is performed (based on the value of load_flags), the advance values are in 16.16 format. Otherwise, they are in font units.

    +

    If FT_LOAD_VERTICAL_LAYOUT is set, these are the vertical advances corresponding to a vertical layout. Otherwise, they are the horizontal advances in a horizontal layout.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function may fail if you use FT_ADVANCE_FLAG_FAST_ONLY and if the corresponding font backend doesn't have a quick way to retrieve the advances.

    +

    Scaled advances are returned in 16.16 format but aren't transformed by the affine transformation specified by FT_Set_Transform.

    +
    + +

    FT_ADVANCE_FLAG_FAST_ONLY

    +

    Defined in FT_ADVANCES_H (freetype/ftadvanc.h).

    +
    #define FT_ADVANCE_FLAG_FAST_ONLY  0x20000000L
+
    + +

    A bit-flag to be OR-ed with the flags parameter of the FT_Get_Advance and FT_Get_Advances functions.

    +

    If set, it indicates that you want these functions to fail if the corresponding hinting mode or font driver doesn't allow for very quick advance computation.

    +

    Typically, glyphs that are either unscaled, unhinted, bitmapped, or light-hinted can have their advance width computed very quickly.

    +

    Normal and bytecode hinted modes that require loading, scaling, and hinting of the glyph outline, are extremely slow by comparison.

    +
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    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-raster.html b/modules/freetype2/docs/reference/ft2-raster.html new file mode 100644 index 0000000000..701a5a3b60 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-raster.html @@ -0,0 +1,1906 @@ + + + + + + + + + + + + + + + + + + + + + Scanline Converter - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Support API » Scanline Converter

    +
    +

    Scanline Converter

    +

    Synopsis

    +

    A raster or a rasterizer is a scan converter in charge of producing a pixel coverage bitmap that can be used as an alpha channel when compositing a glyph with a background. FreeType comes with two rasterizers: bilevel raster1 and anti-aliased smooth are two separate modules. They are usually called from the high-level FT_Load_Glyph or FT_Render_Glyph functions and produce the entire coverage bitmap at once, while staying largely invisible to users.

    +

    Instead of working with complete coverage bitmaps, it is also possible to intercept consecutive pixel runs on the same scanline with the same coverage, called spans, and process them individually. Only the smooth rasterizer permits this when calling FT_Outline_Render with FT_Raster_Params as described below.

    +

    Working with either complete bitmaps or spans it is important to think of them as colorless coverage objects suitable as alpha channels to blend arbitrary colors with a background. For best results, it is recommended to use gamma correction, too.

    +

    This section also describes the public API needed to set up alternative FT_Renderer modules.

    +

    FT_Span

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef struct  FT_Span_
+  {
+    short           x;
+    unsigned short  len;
+    unsigned char   coverage;
+
+  } FT_Span;
+
    + +

    A structure to model a single span of consecutive pixels when rendering an anti-aliased bitmap.

    +

    fields

    + + + + +
    x +

    The span's horizontal start position.

    +
    len +

    The span's length in pixels.

    +
    coverage +

    The span color/coverage, ranging from 0 (background) to 255 (foreground).

    +
    + +

    note

    + +

    This structure is used by the span drawing callback type named FT_SpanFunc that takes the y coordinate of the span as a parameter.

    +

    The anti-aliased rasterizer produces coverage values from 0 to 255, that is, from completely transparent to completely opaque.

    +
    + +

    FT_SpanFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef void
+  (*FT_SpanFunc)( int             y,
+                  int             count,
+                  const FT_Span*  spans,
+                  void*           user );
+
+#define FT_Raster_Span_Func  FT_SpanFunc
+
    + +

    A function used as a call-back by the anti-aliased renderer in order to let client applications draw themselves the pixel spans on each scan line.

    +

    input

    + + + + + +
    y +

    The scanline's upward y coordinate.

    +
    count +

    The number of spans to draw on this scanline.

    +
    spans +

    A table of count spans to draw on the scanline.

    +
    user +

    User-supplied data that is passed to the callback.

    +
    + +

    note

    + +

    This callback allows client applications to directly render the spans of the anti-aliased bitmap to any kind of surfaces.

    +

    This can be used to write anti-aliased outlines directly to a given background bitmap using alpha compositing. It can also be used for oversampling and averaging.

    +
    + +

    FT_Raster_Params

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef struct  FT_Raster_Params_
+  {
+    const FT_Bitmap*        target;
+    const void*             source;
+    int                     flags;
+    FT_SpanFunc             gray_spans;
+    FT_SpanFunc             black_spans;  /* unused */
+    FT_Raster_BitTest_Func  bit_test;     /* unused */
+    FT_Raster_BitSet_Func   bit_set;      /* unused */
+    void*                   user;
+    FT_BBox                 clip_box;
+
+  } FT_Raster_Params;
+
    + +

    A structure to hold the parameters used by a raster's render function, passed as an argument to FT_Outline_Render.

    +

    fields

    + + + + + + + + + + +
    target +

    The target bitmap.

    +
    source +

    A pointer to the source glyph image (e.g., an FT_Outline).

    +
    flags +

    The rendering flags.

    +
    gray_spans +

    The gray span drawing callback.

    +
    black_spans +

    Unused.

    +
    bit_test +

    Unused.

    +
    bit_set +

    Unused.

    +
    user +

    User-supplied data that is passed to each drawing callback.

    +
    clip_box +

    An optional span clipping box expressed in integer pixels (not in 26.6 fixed-point units).

    +
    + +

    note

    + +

    The FT_RASTER_FLAG_AA bit flag must be set in the flags to generate an anti-aliased glyph bitmap, otherwise a monochrome bitmap is generated. The target should have appropriate pixel mode and its dimensions define the clipping region.

    +

    If both FT_RASTER_FLAG_AA and FT_RASTER_FLAG_DIRECT bit flags are set in flags, the raster calls an FT_SpanFunc callback gray_spans with user data as an argument ignoring target. This allows direct composition over a pre-existing user surface to perform the span drawing and composition. To optionally clip the spans, set the FT_RASTER_FLAG_CLIP flag and clip_box. The monochrome raster does not support the direct mode.

    +

    The gray-level rasterizer always uses 256 gray levels. If you want fewer gray levels, you have to use FT_RASTER_FLAG_DIRECT and reduce the levels in the callback function.

    +
    + +

    FT_RASTER_FLAG_XXX

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
    #define FT_RASTER_FLAG_DEFAULT  0x0
+#define FT_RASTER_FLAG_AA       0x1
+#define FT_RASTER_FLAG_DIRECT   0x2
+#define FT_RASTER_FLAG_CLIP     0x4
+#define FT_RASTER_FLAG_SDF      0x8
+
+  /* these constants are deprecated; use the corresponding */
+  /* `FT_RASTER_FLAG_XXX` values instead                   */
+#define ft_raster_flag_default  FT_RASTER_FLAG_DEFAULT
+#define ft_raster_flag_aa       FT_RASTER_FLAG_AA
+#define ft_raster_flag_direct   FT_RASTER_FLAG_DIRECT
+#define ft_raster_flag_clip     FT_RASTER_FLAG_CLIP
+
    + +

    A list of bit flag constants as used in the flags field of a FT_Raster_Params structure.

    +

    values

    + + + + + + +
    FT_RASTER_FLAG_DEFAULT +

    This value is 0.

    +
    FT_RASTER_FLAG_AA +

    This flag is set to indicate that an anti-aliased glyph image should be generated. Otherwise, it will be monochrome (1-bit).

    +
    FT_RASTER_FLAG_DIRECT +

    This flag is set to indicate direct rendering. In this mode, client applications must provide their own span callback. This lets them directly draw or compose over an existing bitmap. If this bit is not set, the target pixmap's buffer must be zeroed before rendering and the output will be clipped to its size.

    +

    Direct rendering is only possible with anti-aliased glyphs.

    +
    FT_RASTER_FLAG_CLIP +

    This flag is only used in direct rendering mode. If set, the output will be clipped to a box specified in the clip_box field of the FT_Raster_Params structure. Otherwise, the clip_box is effectively set to the bounding box and all spans are generated.

    +
    FT_RASTER_FLAG_SDF +

    This flag is set to indicate that a signed distance field glyph image should be generated. This is only used while rendering with the FT_RENDER_MODE_SDF render mode.

    +
    + +
    + +

    FT_Raster

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef struct FT_RasterRec_*  FT_Raster;
+
    + +

    An opaque handle (pointer) to a raster object. Each object can be used independently to convert an outline into a bitmap or pixmap.

    +

    note

    + +

    In FreeType 2, all rasters are now encapsulated within specific FT_Renderer modules and only used in their context.

    +
    + +

    FT_Raster_NewFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef int
+  (*FT_Raster_NewFunc)( void*       memory,
+                        FT_Raster*  raster );
+
+#define FT_Raster_New_Func  FT_Raster_NewFunc
+
    + +

    A function used to create a new raster object.

    +

    input

    + + +
    memory +

    A handle to the memory allocator.

    +
    + +

    output

    + + +
    raster +

    A handle to the new raster object.

    +
    + +

    return

    + +

    Error code. 0 means success.

    +

    note

    + +

    The memory parameter is a typeless pointer in order to avoid un-wanted dependencies on the rest of the FreeType code. In practice, it is an FT_Memory object, i.e., a handle to the standard FreeType memory allocator. However, this field can be completely ignored by a given raster implementation.

    +
    + +

    FT_Raster_DoneFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef void
+  (*FT_Raster_DoneFunc)( FT_Raster  raster );
+
+#define FT_Raster_Done_Func  FT_Raster_DoneFunc
+
    + +

    A function used to destroy a given raster object.

    +

    input

    + + +
    raster +

    A handle to the raster object.

    +
    + +
    + +

    FT_Raster_ResetFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef void
+  (*FT_Raster_ResetFunc)( FT_Raster       raster,
+                          unsigned char*  pool_base,
+                          unsigned long   pool_size );
+
+#define FT_Raster_Reset_Func  FT_Raster_ResetFunc
+
    + +

    FreeType used to provide an area of memory called the ‘render pool’ available to all registered rasterizers. This was not thread safe, however, and now FreeType never allocates this pool.

    +

    This function is called after a new raster object is created.

    +

    input

    + + + + +
    raster +

    A handle to the new raster object.

    +
    pool_base +

    Previously, the address in memory of the render pool. Set this to NULL.

    +
    pool_size +

    Previously, the size in bytes of the render pool. Set this to 0.

    +
    + +

    note

    + +

    Rasterizers should rely on dynamic or stack allocation if they want to (a handle to the memory allocator is passed to the rasterizer constructor).

    +
    + +

    FT_Raster_SetModeFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef int
+  (*FT_Raster_SetModeFunc)( FT_Raster      raster,
+                            unsigned long  mode,
+                            void*          args );
+
+#define FT_Raster_Set_Mode_Func  FT_Raster_SetModeFunc
+
    + +

    This function is a generic facility to change modes or attributes in a given raster. This can be used for debugging purposes, or simply to allow implementation-specific ‘features’ in a given raster module.

    +

    input

    + + + + +
    raster +

    A handle to the new raster object.

    +
    mode +

    A 4-byte tag used to name the mode or property.

    +
    args +

    A pointer to the new mode/property to use.

    +
    + +
    + +

    FT_Raster_RenderFunc

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef int
+  (*FT_Raster_RenderFunc)( FT_Raster                raster,
+                           const FT_Raster_Params*  params );
+
+#define FT_Raster_Render_Func  FT_Raster_RenderFunc
+
    + +

    Invoke a given raster to scan-convert a given glyph image into a target bitmap.

    +

    input

    + + + +
    raster +

    A handle to the raster object.

    +
    params +

    A pointer to an FT_Raster_Params structure used to store the rendering parameters.

    +
    + +

    return

    + +

    Error code. 0 means success.

    +

    note

    + +

    The exact format of the source image depends on the raster's glyph format defined in its FT_Raster_Funcs structure. It can be an FT_Outline or anything else in order to support a large array of glyph formats.

    +

    Note also that the render function can fail and return a FT_Err_Unimplemented_Feature error code if the raster used does not support direct composition.

    +
    + +

    FT_Raster_Funcs

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef struct  FT_Raster_Funcs_
+  {
+    FT_Glyph_Format        glyph_format;
+
+    FT_Raster_NewFunc      raster_new;
+    FT_Raster_ResetFunc    raster_reset;
+    FT_Raster_SetModeFunc  raster_set_mode;
+    FT_Raster_RenderFunc   raster_render;
+    FT_Raster_DoneFunc     raster_done;
+
+  } FT_Raster_Funcs;
+
    + +

    A structure used to describe a given raster class to the library.

    +

    fields

    + + + + + + +
    glyph_format +

    The supported glyph format for this raster.

    +
    raster_new +

    The raster constructor.

    +
    raster_reset +

    Used to reset the render pool within the raster.

    +
    raster_render +

    A function to render a glyph into a given bitmap.

    +
    raster_done +

    The raster destructor.

    +
    + +
    + +

    FT_Raster_BitTest_Func

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef int
+  (*FT_Raster_BitTest_Func)( int    y,
+                             int    x,
+                             void*  user );
+
    + +

    Deprecated, unimplemented.

    +
    + +

    FT_Raster_BitSet_Func

    +

    Defined in FT_IMAGE_H (freetype/ftimage.h).

    +
      typedef void
+  (*FT_Raster_BitSet_Func)( int    y,
+                            int    x,
+                            void*  user );
+
    + +

    Deprecated, unimplemented.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
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    +
    +
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    FreeType » Docs » Format-Specific API » SFNT Names

    +
    +

    SFNT Names

    +

    Synopsis

    +

    The TrueType and OpenType specifications allow the inclusion of a special names table (‘name’) in font files. This table contains textual (and internationalized) information regarding the font, like family name, copyright, version, etc.

    +

    The definitions below are used to access them if available.

    +

    Note that this has nothing to do with glyph names!

    +

    FT_SfntName

    +

    Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h).

    +
      typedef struct  FT_SfntName_
+  {
+    FT_UShort  platform_id;
+    FT_UShort  encoding_id;
+    FT_UShort  language_id;
+    FT_UShort  name_id;
+
+    FT_Byte*   string;      /* this string is *not* null-terminated! */
+    FT_UInt    string_len;  /* in bytes                              */
+
+  } FT_SfntName;
+
    + +

    A structure used to model an SFNT ‘name’ table entry.

    +

    fields

    + + + + + + + +
    platform_id +

    The platform ID for string. See TT_PLATFORM_XXX for possible values.

    +
    encoding_id +

    The encoding ID for string. See TT_APPLE_ID_XXX, TT_MAC_ID_XXX, TT_ISO_ID_XXX, TT_MS_ID_XXX, and TT_ADOBE_ID_XXX for possible values.

    +
    language_id +

    The language ID for string. See TT_MAC_LANGID_XXX and TT_MS_LANGID_XXX for possible values.

    +

    Registered OpenType values for language_id are always smaller than 0x8000; values equal or larger than 0x8000 usually indicate a language tag string (introduced in OpenType version 1.6). Use function FT_Get_Sfnt_LangTag with language_id as its argument to retrieve the associated language tag.

    +
    name_id +

    An identifier for string. See TT_NAME_ID_XXX for possible values.

    +
    string +

    The ‘name’ string. Note that its format differs depending on the (platform,encoding) pair, being either a string of bytes (without a terminating NULL byte) or containing UTF-16BE entities.

    +
    string_len +

    The length of string in bytes.

    +
    + +

    note

    + +

    Please refer to the TrueType or OpenType specification for more details.

    +
    + +

    FT_Get_Sfnt_Name_Count

    +

    Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h).

    +
      FT_EXPORT( FT_UInt )
+  FT_Get_Sfnt_Name_Count( FT_Face  face );
+
    + +

    Retrieve the number of name strings in the SFNT ‘name’ table.

    +

    input

    + + +
    face +

    A handle to the source face.

    +
    + +

    return

    + +

    The number of strings in the ‘name’ table.

    +

    note

    + +

    This function always returns an error if the config macro TT_CONFIG_OPTION_SFNT_NAMES is not defined in ftoption.h.

    +
    + +

    FT_Get_Sfnt_Name

    +

    Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Sfnt_Name( FT_Face       face,
+                    FT_UInt       idx,
+                    FT_SfntName  *aname );
+
    + +

    Retrieve a string of the SFNT ‘name’ table for a given index.

    +

    input

    + + + +
    face +

    A handle to the source face.

    +
    idx +

    The index of the ‘name’ string.

    +
    + +

    output

    + + +
    aname +

    The indexed FT_SfntName structure.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The string array returned in the aname structure is not null-terminated. Note that you don't have to deallocate string by yourself; FreeType takes care of it if you call FT_Done_Face.

    +

    Use FT_Get_Sfnt_Name_Count to get the total number of available ‘name’ table entries, then do a loop until you get the right platform, encoding, and name ID.

    +

    ‘name’ table format 1 entries can use language tags also, see FT_Get_Sfnt_LangTag.

    +

    This function always returns an error if the config macro TT_CONFIG_OPTION_SFNT_NAMES is not defined in ftoption.h.

    +
    + +

    FT_SfntLangTag

    +

    Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h).

    +
      typedef struct  FT_SfntLangTag_
+  {
+    FT_Byte*  string;      /* this string is *not* null-terminated! */
+    FT_UInt   string_len;  /* in bytes                              */
+
+  } FT_SfntLangTag;
+
    + +

    A structure to model a language tag entry from an SFNT ‘name’ table.

    +

    fields

    + + + +
    string +

    The language tag string, encoded in UTF-16BE (without trailing NULL bytes).

    +
    string_len +

    The length of string in bytes.

    +
    + +

    note

    + +

    Please refer to the TrueType or OpenType specification for more details.

    +

    since

    + +

    2.8

    +
    + +

    FT_Get_Sfnt_LangTag

    +

    Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_Sfnt_LangTag( FT_Face          face,
+                       FT_UInt          langID,
+                       FT_SfntLangTag  *alangTag );
+
    + +

    Retrieve the language tag associated with a language ID of an SFNT ‘name’ table entry.

    +

    input

    + + + +
    face +

    A handle to the source face.

    +
    langID +

    The language ID, as returned by FT_Get_Sfnt_Name. This is always a value larger than 0x8000.

    +
    + +

    output

    + + +
    alangTag +

    The language tag associated with the ‘name’ table entry's language ID.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The string array returned in the alangTag structure is not null-terminated. Note that you don't have to deallocate string by yourself; FreeType takes care of it if you call FT_Done_Face.

    +

    Only ‘name’ table format 1 supports language tags. For format 0 tables, this function always returns FT_Err_Invalid_Table. For invalid format 1 language ID values, FT_Err_Invalid_Argument is returned.

    +

    This function always returns an error if the config macro TT_CONFIG_OPTION_SFNT_NAMES is not defined in ftoption.h.

    +

    since

    + +

    2.8

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-sizes_management.html b/modules/freetype2/docs/reference/ft2-sizes_management.html new file mode 100644 index 0000000000..36c8d24f24 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-sizes_management.html @@ -0,0 +1,1473 @@ + + + + + + + + + + + + + + + + + + + + + Size Management - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Extended API » Size Management

    +
    +

    Size Management

    +

    Synopsis

    +

    When creating a new face object (e.g., with FT_New_Face), an FT_Size object is automatically created and used to store all pixel-size dependent information, available in the face->size field.

    +

    It is however possible to create more sizes for a given face, mostly in order to manage several character pixel sizes of the same font family and style. See FT_New_Size and FT_Done_Size.

    +

    Note that FT_Set_Pixel_Sizes and FT_Set_Char_Size only modify the contents of the current ‘active’ size; you thus need to use FT_Activate_Size to change it.

    +

    99% of applications won't need the functions provided here, especially if they use the caching sub-system, so be cautious when using these.

    +

    FT_New_Size

    +

    Defined in FT_SIZES_H (freetype/ftsizes.h).

    +
      FT_EXPORT( FT_Error )
+  FT_New_Size( FT_Face   face,
+               FT_Size*  size );
+
    + +

    Create a new size object from a given face object.

    +

    input

    + + +
    face +

    A handle to a parent face object.

    +
    + +

    output

    + + +
    asize +

    A handle to a new size object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    You need to call FT_Activate_Size in order to select the new size for upcoming calls to FT_Set_Pixel_Sizes, FT_Set_Char_Size, FT_Load_Glyph, FT_Load_Char, etc.

    +
    + +

    FT_Done_Size

    +

    Defined in FT_SIZES_H (freetype/ftsizes.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Done_Size( FT_Size  size );
+
    + +

    Discard a given size object. Note that FT_Done_Face automatically discards all size objects allocated with FT_New_Size.

    +

    input

    + + +
    size +

    A handle to a target size object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +
    + +

    FT_Activate_Size

    +

    Defined in FT_SIZES_H (freetype/ftsizes.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Activate_Size( FT_Size  size );
+
    + +

    Even though it is possible to create several size objects for a given face (see FT_New_Size for details), functions like FT_Load_Glyph or FT_Load_Char only use the one that has been activated last to determine the ‘current character pixel size’.

    +

    This function can be used to ‘activate’ a previously created size object.

    +

    input

    + + +
    size +

    A handle to a target size object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If face is the size's parent face object, this function changes the value of face->size to the input size handle.

    +
    + + + + + + + +
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    + +
    + + + + +
    +
    +
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    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-sizing_and_scaling.html b/modules/freetype2/docs/reference/ft2-sizing_and_scaling.html new file mode 100644 index 0000000000..100ae7106d --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-sizing_and_scaling.html @@ -0,0 +1,2003 @@ + + + + + + + + + + + + + + + + + + + + + Sizing and Scaling - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Core API » Sizing and Scaling

    +
    +

    Sizing and Scaling

    +

    Synopsis

    +

    The functions and structures collected in this section are related to selecting and manipulating the size of a font globally.

    +

    FT_Size

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_SizeRec_*  FT_Size;
+
    + +

    A handle to an object that models a face scaled to a given character size.

    +

    note

    + +

    An FT_Face has one active FT_Size object that is used by functions like FT_Load_Glyph to determine the scaling transformation that in turn is used to load and hint glyphs and metrics.

    +

    A newly created FT_Size object contains only meaningless zero values. You must use FT_Set_Char_Size, FT_Set_Pixel_Sizes, FT_Request_Size or even FT_Select_Size to change the content (i.e., the scaling values) of the active FT_Size. Otherwise, the scaling and hinting will not be performed.

    +

    You can use FT_New_Size to create additional size objects for a given FT_Face, but they won't be used by other functions until you activate it through FT_Activate_Size. Only one size can be activated at any given time per face.

    +

    also

    + +

    See FT_SizeRec for the publicly accessible fields of a given size object.

    +
    + +

    FT_SizeRec

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_SizeRec_
+  {
+    FT_Face           face;      /* parent face object              */
+    FT_Generic        generic;   /* generic pointer for client uses */
+    FT_Size_Metrics   metrics;   /* size metrics                    */
+    FT_Size_Internal  internal;
+
+  } FT_SizeRec;
+
    + +

    FreeType root size class structure. A size object models a face object at a given size.

    +

    fields

    + + + + +
    face +

    Handle to the parent face object.

    +
    generic +

    A typeless pointer, unused by the FreeType library or any of its drivers. It can be used by client applications to link their own data to each size object.

    +
    metrics +

    Metrics for this size object. This field is read-only.

    +
    + +
    + +

    FT_Size_Metrics

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_Size_Metrics_
+  {
+    FT_UShort  x_ppem;      /* horizontal pixels per EM               */
+    FT_UShort  y_ppem;      /* vertical pixels per EM                 */
+
+    FT_Fixed   x_scale;     /* scaling values used to convert font    */
+    FT_Fixed   y_scale;     /* units to 26.6 fractional pixels        */
+
+    FT_Pos     ascender;    /* ascender in 26.6 frac. pixels          */
+    FT_Pos     descender;   /* descender in 26.6 frac. pixels         */
+    FT_Pos     height;      /* text height in 26.6 frac. pixels       */
+    FT_Pos     max_advance; /* max horizontal advance, in 26.6 pixels */
+
+  } FT_Size_Metrics;
+
    + +

    The size metrics structure gives the metrics of a size object.

    +

    fields

    + + + + + + + + + +
    x_ppem +

    The width of the scaled EM square in pixels, hence the term ‘ppem’ (pixels per EM). It is also referred to as ‘nominal width’.

    +
    y_ppem +

    The height of the scaled EM square in pixels, hence the term ‘ppem’ (pixels per EM). It is also referred to as ‘nominal height’.

    +
    x_scale +

    A 16.16 fractional scaling value to convert horizontal metrics from font units to 26.6 fractional pixels. Only relevant for scalable font formats.

    +
    y_scale +

    A 16.16 fractional scaling value to convert vertical metrics from font units to 26.6 fractional pixels. Only relevant for scalable font formats.

    +
    ascender +

    The ascender in 26.6 fractional pixels, rounded up to an integer value. See FT_FaceRec for the details.

    +
    descender +

    The descender in 26.6 fractional pixels, rounded down to an integer value. See FT_FaceRec for the details.

    +
    height +

    The height in 26.6 fractional pixels, rounded to an integer value. See FT_FaceRec for the details.

    +
    max_advance +

    The maximum advance width in 26.6 fractional pixels, rounded to an integer value. See FT_FaceRec for the details.

    +
    + +

    note

    + +

    The scaling values, if relevant, are determined first during a size changing operation. The remaining fields are then set by the driver. For scalable formats, they are usually set to scaled values of the corresponding fields in FT_FaceRec. Some values like ascender or descender are rounded for historical reasons; more precise values (for outline fonts) can be derived by scaling the corresponding FT_FaceRec values manually, with code similar to the following. +

      scaled_ascender = FT_MulFix( face->ascender,
+                               size_metrics->y_scale );
+

    +

    Note that due to glyph hinting and the selected rendering mode these values are usually not exact; consequently, they must be treated as unreliable with an error margin of at least one pixel!

    +

    Indeed, the only way to get the exact metrics is to render all glyphs. As this would be a definite performance hit, it is up to client applications to perform such computations.

    +

    The FT_Size_Metrics structure is valid for bitmap fonts also.

    +

    TrueType fonts with native bytecode hinting

    +

    All applications that handle TrueType fonts with native hinting must be aware that TTFs expect different rounding of vertical font dimensions. The application has to cater for this, especially if it wants to rely on a TTF's vertical data (for example, to properly align box characters vertically).

    +

    Only the application knows in advance that it is going to use native hinting for TTFs! FreeType, on the other hand, selects the hinting mode not at the time of creating an FT_Size object but much later, namely while calling FT_Load_Glyph.

    +

    Here is some pseudo code that illustrates a possible solution. +

      font_format = FT_Get_Font_Format( face );
+
+  if ( !strcmp( font_format, "TrueType" ) &&
+       do_native_bytecode_hinting         )
+  {
+    ascender  = ROUND( FT_MulFix( face->ascender,
+                                  size_metrics->y_scale ) );
+    descender = ROUND( FT_MulFix( face->descender,
+                                  size_metrics->y_scale ) );
+  }
+  else
+  {
+    ascender  = size_metrics->ascender;
+    descender = size_metrics->descender;
+  }
+
+  height      = size_metrics->height;
+  max_advance = size_metrics->max_advance;
+

    +
    + +

    FT_Bitmap_Size

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_Bitmap_Size_
+  {
+    FT_Short  height;
+    FT_Short  width;
+
+    FT_Pos    size;
+
+    FT_Pos    x_ppem;
+    FT_Pos    y_ppem;
+
+  } FT_Bitmap_Size;
+
    + +

    This structure models the metrics of a bitmap strike (i.e., a set of glyphs for a given point size and resolution) in a bitmap font. It is used for the available_sizes field of FT_Face.

    +

    fields

    + + + + + + +
    height +

    The vertical distance, in pixels, between two consecutive baselines. It is always positive.

    +
    width +

    The average width, in pixels, of all glyphs in the strike.

    +
    size +

    The nominal size of the strike in 26.6 fractional points. This field is not very useful.

    +
    x_ppem +

    The horizontal ppem (nominal width) in 26.6 fractional pixels.

    +
    y_ppem +

    The vertical ppem (nominal height) in 26.6 fractional pixels.

    +
    + +

    note

    + +

    Windows FNT: The nominal size given in a FNT font is not reliable. If the driver finds it incorrect, it sets size to some calculated values, and x_ppem and y_ppem to the pixel width and height given in the font, respectively.

    +

    TrueType embedded bitmaps: size, width, and height values are not contained in the bitmap strike itself. They are computed from the global font parameters.

    +
    + +

    FT_Set_Char_Size

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_Char_Size( FT_Face     face,
+                    FT_F26Dot6  char_width,
+                    FT_F26Dot6  char_height,
+                    FT_UInt     horz_resolution,
+                    FT_UInt     vert_resolution );
+
    + +

    Call FT_Request_Size to request the nominal size (in points).

    +

    inout

    + + +
    face +

    A handle to a target face object.

    +
    + +

    input

    + + + + + +
    char_width +

    The nominal width, in 26.6 fractional points.

    +
    char_height +

    The nominal height, in 26.6 fractional points.

    +
    horz_resolution +

    The horizontal resolution in dpi.

    +
    vert_resolution +

    The vertical resolution in dpi.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    While this function allows fractional points as input values, the resulting ppem value for the given resolution is always rounded to the nearest integer.

    +

    If either the character width or height is zero, it is set equal to the other value.

    +

    If either the horizontal or vertical resolution is zero, it is set equal to the other value.

    +

    A character width or height smaller than 1pt is set to 1pt; if both resolution values are zero, they are set to 72dpi.

    +

    Don't use this function if you are using the FreeType cache API.

    +
    + +

    FT_Set_Pixel_Sizes

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Set_Pixel_Sizes( FT_Face  face,
+                      FT_UInt  pixel_width,
+                      FT_UInt  pixel_height );
+
    + +

    Call FT_Request_Size to request the nominal size (in pixels).

    +

    inout

    + + +
    face +

    A handle to the target face object.

    +
    + +

    input

    + + + +
    pixel_width +

    The nominal width, in pixels.

    +
    pixel_height +

    The nominal height, in pixels.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    You should not rely on the resulting glyphs matching or being constrained to this pixel size. Refer to FT_Request_Size to understand how requested sizes relate to actual sizes.

    +

    Don't use this function if you are using the FreeType cache API.

    +
    + +

    FT_Request_Size

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Request_Size( FT_Face          face,
+                   FT_Size_Request  req );
+
    + +

    Resize the scale of the active FT_Size object in a face.

    +

    inout

    + + +
    face +

    A handle to a target face object.

    +
    + +

    input

    + + +
    req +

    A pointer to a FT_Size_RequestRec.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    Although drivers may select the bitmap strike matching the request, you should not rely on this if you intend to select a particular bitmap strike. Use FT_Select_Size instead in that case.

    +

    The relation between the requested size and the resulting glyph size is dependent entirely on how the size is defined in the source face. The font designer chooses the final size of each glyph relative to this size. For more information refer to ‘https://www.freetype.org/freetype2/docs/glyphs/glyphs-2.html’.

    +

    Contrary to FT_Set_Char_Size, this function doesn't have special code to normalize zero-valued widths, heights, or resolutions, which are treated as FT_LOAD_NO_SCALE.

    +

    Don't use this function if you are using the FreeType cache API.

    +
    + +

    FT_Select_Size

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Select_Size( FT_Face  face,
+                  FT_Int   strike_index );
+
    + +

    Select a bitmap strike. To be more precise, this function sets the scaling factors of the active FT_Size object in a face so that bitmaps from this particular strike are taken by FT_Load_Glyph and friends.

    +

    inout

    + + +
    face +

    A handle to a target face object.

    +
    + +

    input

    + + +
    strike_index +

    The index of the bitmap strike in the available_sizes field of FT_FaceRec structure.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    For bitmaps embedded in outline fonts it is common that only a subset of the available glyphs at a given ppem value is available. FreeType silently uses outlines if there is no bitmap for a given glyph index.

    +

    For GX and OpenType variation fonts, a bitmap strike makes sense only if the default instance is active (that is, no glyph variation takes place); otherwise, FreeType simply ignores bitmap strikes. The same is true for all named instances that are different from the default instance.

    +

    Don't use this function if you are using the FreeType cache API.

    +
    + +

    FT_Size_Request_Type

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef enum  FT_Size_Request_Type_
+  {
+    FT_SIZE_REQUEST_TYPE_NOMINAL,
+    FT_SIZE_REQUEST_TYPE_REAL_DIM,
+    FT_SIZE_REQUEST_TYPE_BBOX,
+    FT_SIZE_REQUEST_TYPE_CELL,
+    FT_SIZE_REQUEST_TYPE_SCALES,
+
+    FT_SIZE_REQUEST_TYPE_MAX
+
+  } FT_Size_Request_Type;
+
    + +

    An enumeration type that lists the supported size request types, i.e., what input size (in font units) maps to the requested output size (in pixels, as computed from the arguments of FT_Size_Request).

    +

    values

    + + + + + + +
    FT_SIZE_REQUEST_TYPE_NOMINAL +

    The nominal size. The units_per_EM field of FT_FaceRec is used to determine both scaling values.

    +

    This is the standard scaling found in most applications. In particular, use this size request type for TrueType fonts if they provide optical scaling or something similar. Note, however, that units_per_EM is a rather abstract value which bears no relation to the actual size of the glyphs in a font.

    +
    FT_SIZE_REQUEST_TYPE_REAL_DIM +

    The real dimension. The sum of the ascender and (minus of) the descender fields of FT_FaceRec is used to determine both scaling values.

    +
    FT_SIZE_REQUEST_TYPE_BBOX +

    The font bounding box. The width and height of the bbox field of FT_FaceRec are used to determine the horizontal and vertical scaling value, respectively.

    +
    FT_SIZE_REQUEST_TYPE_CELL +

    The max_advance_width field of FT_FaceRec is used to determine the horizontal scaling value; the vertical scaling value is determined the same way as FT_SIZE_REQUEST_TYPE_REAL_DIM does. Finally, both scaling values are set to the smaller one. This type is useful if you want to specify the font size for, say, a window of a given dimension and 80x24 cells.

    +
    FT_SIZE_REQUEST_TYPE_SCALES +

    Specify the scaling values directly.

    +
    + +

    note

    + +

    The above descriptions only apply to scalable formats. For bitmap formats, the behaviour is up to the driver.

    +

    See the note section of FT_Size_Metrics if you wonder how size requesting relates to scaling values.

    +
    + +

    FT_Size_RequestRec

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct  FT_Size_RequestRec_
+  {
+    FT_Size_Request_Type  type;
+    FT_Long               width;
+    FT_Long               height;
+    FT_UInt               horiResolution;
+    FT_UInt               vertResolution;
+
+  } FT_Size_RequestRec;
+
    + +

    A structure to model a size request.

    +

    fields

    + + + + + + +
    type +

    See FT_Size_Request_Type.

    +
    width +

    The desired width, given as a 26.6 fractional point value (with 72pt = 1in).

    +
    height +

    The desired height, given as a 26.6 fractional point value (with 72pt = 1in).

    +
    horiResolution +

    The horizontal resolution (dpi, i.e., pixels per inch). If set to zero, width is treated as a 26.6 fractional pixel value, which gets internally rounded to an integer.

    +
    vertResolution +

    The vertical resolution (dpi, i.e., pixels per inch). If set to zero, height is treated as a 26.6 fractional pixel value, which gets internally rounded to an integer.

    +
    + +

    note

    + +

    If width is zero, the horizontal scaling value is set equal to the vertical scaling value, and vice versa.

    +

    If type is FT_SIZE_REQUEST_TYPE_SCALES, width and height are interpreted directly as 16.16 fractional scaling values, without any further modification, and both horiResolution and vertResolution are ignored.

    +
    + +

    FT_Size_Request

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      typedef struct FT_Size_RequestRec_  *FT_Size_Request;
+
    + +

    A handle to a size request structure.

    +
    + +

    FT_Set_Transform

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( void )
+  FT_Set_Transform( FT_Face     face,
+                    FT_Matrix*  matrix,
+                    FT_Vector*  delta );
+
    + +

    Set the transformation that is applied to glyph images when they are loaded into a glyph slot through FT_Load_Glyph.

    +

    inout

    + + +
    face +

    A handle to the source face object.

    +
    + +

    input

    + + + +
    matrix +

    A pointer to the transformation's 2x2 matrix. Use NULL for the identity matrix.

    +
    delta +

    A pointer to the translation vector. Use NULL for the null vector.

    +
    + +

    note

    + +

    This function is provided as a convenience, but keep in mind that FT_Matrix coefficients are only 16.16 fixed-point values, which can limit the accuracy of the results. Using floating-point computations to perform the transform directly in client code instead will always yield better numbers.

    +

    The transformation is only applied to scalable image formats after the glyph has been loaded. It means that hinting is unaltered by the transformation and is performed on the character size given in the last call to FT_Set_Char_Size or FT_Set_Pixel_Sizes.

    +

    Note that this also transforms the face.glyph.advance field, but not the values in face.glyph.metrics.

    +
    + +

    FT_Get_Transform

    +

    Defined in FT_FREETYPE_H (freetype/freetype.h).

    +
      FT_EXPORT( void )
+  FT_Get_Transform( FT_Face     face,
+                    FT_Matrix*  matrix,
+                    FT_Vector*  delta );
+
    + +

    Return the transformation that is applied to glyph images when they are loaded into a glyph slot through FT_Load_Glyph. See FT_Set_Transform for more details.

    +

    input

    + + +
    face +

    A handle to the source face object.

    +
    + +

    output

    + + + +
    matrix +

    A pointer to a transformation's 2x2 matrix. Set this to NULL if you are not interested in the value.

    +
    delta +

    A pointer to a translation vector. Set this to NULL if you are not interested in the value.

    +
    + +

    since

    + +

    2.11

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-svg_fonts.html b/modules/freetype2/docs/reference/ft2-svg_fonts.html new file mode 100644 index 0000000000..027e4e974b --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-svg_fonts.html @@ -0,0 +1,1684 @@ + + + + + + + + + + + + + + + + + + + + + OpenType SVG Fonts - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
    + +
    + +
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    + + + + +
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    + + + +

    FreeType » Docs » Format-Specific API » OpenType SVG Fonts

    +
    +

    OpenType SVG Fonts

    +

    Synopsis

    +

    This section describes the four hooks necessary to render SVG ‘documents’ that are contained in an OpenType font's ‘SVG ’ table.

    +

    For more information on the implementation, see our standard hooks based on ‘librsvg’ in the FreeType Demo Programs repository.

    +

    SVG_Lib_Init_Func

    +

    Defined in FT_OTSVG_H (freetype/otsvg.h).

    +
      typedef FT_Error
+  (*SVG_Lib_Init_Func)( FT_Pointer  *data_pointer );
+
    + +

    A callback that is called when the first OT-SVG glyph is rendered in the lifetime of an FT_Library object. In a typical implementation, one would want to allocate a structure and point the data_pointer to it and perform any library initializations that might be needed.

    +

    inout

    + + +
    data_pointer +

    The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. data_pointer is essentially a pointer to that pointer such that it can be written to as well as read from.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    since

    + +

    2.12

    +
    + +

    SVG_Lib_Free_Func

    +

    Defined in FT_OTSVG_H (freetype/otsvg.h).

    +
      typedef void
+  (*SVG_Lib_Free_Func)( FT_Pointer  *data_pointer );
+
    + +

    A callback that is called when the ot-svg module is being freed. It is only called if the init hook was called earlier. This means that neither the init nor the free hook is called if no OT-SVG glyph is rendered.

    +

    In a typical implementation, one would want to free any state structure that was allocated in the init hook and perform any library-related closure that might be needed.

    +

    inout

    + + +
    data_pointer +

    The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. data_pointer is essentially a pointer to that pointer such that it can be written to as well as read from.

    +
    + +

    since

    + +

    2.12

    +
    + +

    SVG_Lib_Render_Func

    +

    Defined in FT_OTSVG_H (freetype/otsvg.h).

    +
      typedef FT_Error
+  (*SVG_Lib_Render_Func)( FT_GlyphSlot  slot,
+                          FT_Pointer   *data_pointer );
+
    + +

    A callback that is called to render an OT-SVG glyph. This callback hook is called right after the preset hook SVG_Lib_Preset_Slot_Func has been called with cache set to TRUE. The data necessary to render is available through the handle FT_SVG_Document, which is set in the other field of FT_GlyphSlotRec.

    +

    The render hook is expected to render the SVG glyph to the bitmap buffer that is allocated already at slot->bitmap.buffer. It also sets the num_grays value as well as slot->format.

    +

    input

    + + +
    slot +

    The slot to render.

    +
    + +

    inout

    + + +
    data_pointer +

    The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. data_pointer is essentially a pointer to that pointer such that it can be written to as well as read from.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    since

    + +

    2.12

    +
    + +

    SVG_Lib_Preset_Slot_Func

    +

    Defined in FT_OTSVG_H (freetype/otsvg.h).

    +
      typedef FT_Error
+  (*SVG_Lib_Preset_Slot_Func)( FT_GlyphSlot  slot,
+                               FT_Bool       cache,
+                               FT_Pointer   *state );
+
    + +

    A callback that is called to preset the glyph slot. It is called from two places.

    +
      +
    1. +

      When FT_Load_Glyph needs to preset the glyph slot.

      +
      2. +
    2. +

      Right before the svg module calls the render callback hook.

      +
      3. +
    +

    When it is the former, the argument cache is set to FALSE. When it is the latter, the argument cache is set to TRUE. This distinction has been made because many calculations that are necessary for presetting a glyph slot are the same needed later for the render callback hook. Thus, if cache is TRUE, the hook can cache those calculations in a memory block referenced by the state pointer.

    +

    This hook is expected to preset the slot by setting parameters such as bitmap_left, bitmap_top, width, rows, pitch, and pixel_mode. It is also expected to set all the metrics for the slot including the vertical advance if it is not already set. Typically, fonts have horizontal advances but not vertical ones. If those are available, they had already been set, otherwise they have to be estimated and set manually. The hook must take into account the transformations that have been set, and translate the transformation matrices into the SVG coordinate system, as the original matrix is intended for the TTF/CFF coordinate system.

    +

    input

    + + + +
    slot +

    The glyph slot that has the SVG document loaded.

    +
    cache +

    See description.

    +
    + +

    inout

    + + +
    data_pointer +

    The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. data_pointer is essentially a pointer to that pointer such that it can be written to as well as read from.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    since

    + +

    2.12

    +
    + +

    SVG_RendererHooks

    +

    Defined in FT_OTSVG_H (freetype/otsvg.h).

    +
      typedef struct SVG_RendererHooks_
+  {
+    SVG_Lib_Init_Func    init_svg;
+    SVG_Lib_Free_Func    free_svg;
+    SVG_Lib_Render_Func  render_svg;
+
+    SVG_Lib_Preset_Slot_Func  preset_slot;
+
+  } SVG_RendererHooks;
+
    + +

    A structure that stores the four hooks needed to render OT-SVG glyphs properly. The structure is publicly used to set the hooks via the svg-hooks driver property.

    +

    The behavior of each hook is described in its documentation. One thing to note is that the preset hook and the render hook often need to do the same operations; therefore, it's better to cache the intermediate data in a state structure to avoid calculating it twice. For example, in the preset hook one can draw the glyph on a recorder surface and later create a bitmap surface from it in the render hook.

    +

    All four hooks must be non-NULL.

    +

    fields

    + + + + + +
    init_svg +

    The initialization hook.

    +
    free_svg +

    The cleanup hook.

    +
    render_hook +

    The render hook.

    +
    preset_slot +

    The preset hook.

    +
    + +

    since

    + +

    2.12

    +
    + +

    FT_SVG_DocumentRec

    +

    Defined in FT_OTSVG_H (freetype/otsvg.h).

    +
      typedef struct  FT_SVG_DocumentRec_
+  {
+    FT_Byte*  svg_document;
+    FT_ULong  svg_document_length;
+
+    FT_Size_Metrics  metrics;
+    FT_UShort        units_per_EM;
+
+    FT_UShort  start_glyph_id;
+    FT_UShort  end_glyph_id;
+
+    FT_Matrix  transform;
+    FT_Vector  delta;
+
+  } FT_SVG_DocumentRec;
+
    + +

    A structure that models one SVG document.

    +

    fields

    + + + + + + + + + +
    svg_document +

    A pointer to the SVG document.

    +
    svg_document_length +

    The length of svg_document.

    +
    metrics +

    A metrics object storing the size information.

    +
    units_per_EM +

    The size of the EM square.

    +
    start_glyph_id +

    The first glyph ID in the glyph range covered by this document.

    +
    end_glyph_id +

    The last glyph ID in the glyph range covered by this document.

    +
    transform +

    A 2x2 transformation matrix to apply to the glyph while rendering it.

    +
    delta +

    The translation to apply to the glyph while rendering.

    +
    + +

    note

    + +

    When an FT_GlyphSlot object slot is passed down to a renderer, the renderer can only access the metrics and units_per_EM fields via slot->face. However, when FT_Glyph_To_Bitmap sets up a dummy object, it has no way to set a face object. Thus, metrics information and units_per_EM (which is necessary for OT-SVG) has to be stored separately.

    +

    since

    + +

    2.12

    +
    + +

    FT_SVG_Document

    +

    Defined in FT_OTSVG_H (freetype/otsvg.h).

    +
      typedef struct FT_SVG_DocumentRec_*  FT_SVG_Document;
+
+
+FT_END_HEADER
+
+#endif /* OTSVG_H_ */
+
+
+/* END */
+
    + +

    A handle to an FT_SVG_DocumentRec object.

    +

    since

    + +

    2.12

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-system_interface.html b/modules/freetype2/docs/reference/ft2-system_interface.html new file mode 100644 index 0000000000..371a8eab53 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-system_interface.html @@ -0,0 +1,1740 @@ + + + + + + + + + + + + + + + + + + + + + System Interface - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Support API » System Interface

    +
    +

    System Interface

    +

    Synopsis

    +

    This section contains various definitions related to memory management and i/o access. You need to understand this information if you want to use a custom memory manager or you own i/o streams.

    +

    FT_Memory

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      typedef struct FT_MemoryRec_*  FT_Memory;
+
    + +

    A handle to a given memory manager object, defined with an FT_MemoryRec structure.

    +
    + +

    FT_Alloc_Func

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      typedef void*
+  (*FT_Alloc_Func)( FT_Memory  memory,
+                    long       size );
+
    + +

    A function used to allocate size bytes from memory.

    +

    input

    + + + +
    memory +

    A handle to the source memory manager.

    +
    size +

    The size in bytes to allocate.

    +
    + +

    return

    + +

    Address of new memory block. 0 in case of failure.

    +
    + +

    FT_Free_Func

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      typedef void
+  (*FT_Free_Func)( FT_Memory  memory,
+                   void*      block );
+
    + +

    A function used to release a given block of memory.

    +

    input

    + + + +
    memory +

    A handle to the source memory manager.

    +
    block +

    The address of the target memory block.

    +
    + +
    + +

    FT_Realloc_Func

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      typedef void*
+  (*FT_Realloc_Func)( FT_Memory  memory,
+                      long       cur_size,
+                      long       new_size,
+                      void*      block );
+
    + +

    A function used to re-allocate a given block of memory.

    +

    input

    + + + + + +
    memory +

    A handle to the source memory manager.

    +
    cur_size +

    The block's current size in bytes.

    +
    new_size +

    The block's requested new size.

    +
    block +

    The block's current address.

    +
    + +

    return

    + +

    New block address. 0 in case of memory shortage.

    +

    note

    + +

    In case of error, the old block must still be available.

    +
    + +

    FT_MemoryRec

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      struct  FT_MemoryRec_
+  {
+    void*            user;
+    FT_Alloc_Func    alloc;
+    FT_Free_Func     free;
+    FT_Realloc_Func  realloc;
+  };
+
    + +

    A structure used to describe a given memory manager to FreeType 2.

    +

    fields

    + + + + + +
    user +

    A generic typeless pointer for user data.

    +
    alloc +

    A pointer type to an allocation function.

    +
    free +

    A pointer type to an memory freeing function.

    +
    realloc +

    A pointer type to a reallocation function.

    +
    + +
    + +

    FT_Stream

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      typedef struct FT_StreamRec_*  FT_Stream;
+
    + +

    A handle to an input stream.

    +

    also

    + +

    See FT_StreamRec for the publicly accessible fields of a given stream object.

    +
    + +

    FT_StreamDesc

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      typedef union  FT_StreamDesc_
+  {
+    long   value;
+    void*  pointer;
+
+  } FT_StreamDesc;
+
    + +

    A union type used to store either a long or a pointer. This is used to store a file descriptor or a FILE* in an input stream.

    +
    + +

    FT_Stream_IoFunc

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      typedef unsigned long
+  (*FT_Stream_IoFunc)( FT_Stream       stream,
+                       unsigned long   offset,
+                       unsigned char*  buffer,
+                       unsigned long   count );
+
    + +

    A function used to seek and read data from a given input stream.

    +

    input

    + + + + + +
    stream +

    A handle to the source stream.

    +
    offset +

    The offset from the start of the stream to seek to.

    +
    buffer +

    The address of the read buffer.

    +
    count +

    The number of bytes to read from the stream.

    +
    + +

    return

    + +

    If count > 0, return the number of bytes effectively read by the stream (after seeking to offset). If count == 0, return the status of the seek operation (non-zero indicates an error).

    +
    + +

    FT_Stream_CloseFunc

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      typedef void
+  (*FT_Stream_CloseFunc)( FT_Stream  stream );
+
    + +

    A function used to close a given input stream.

    +

    input

    + + +
    stream +

    A handle to the target stream.

    +
    + +
    + +

    FT_StreamRec

    +

    Defined in FT_SYSTEM_H (freetype/ftsystem.h).

    +
      typedef struct  FT_StreamRec_
+  {
+    unsigned char*       base;
+    unsigned long        size;
+    unsigned long        pos;
+
+    FT_StreamDesc        descriptor;
+    FT_StreamDesc        pathname;
+    FT_Stream_IoFunc     read;
+    FT_Stream_CloseFunc  close;
+
+    FT_Memory            memory;
+    unsigned char*       cursor;
+    unsigned char*       limit;
+
+  } FT_StreamRec;
+
    + +

    A structure used to describe an input stream.

    +

    input

    + + + + + + + + + + + +
    base +

    For memory-based streams, this is the address of the first stream byte in memory. This field should always be set to NULL for disk-based streams.

    +
    size +

    The stream size in bytes.

    +

    In case of compressed streams where the size is unknown before actually doing the decompression, the value is set to 0x7FFFFFFF. (Note that this size value can occur for normal streams also; it is thus just a hint.)

    +
    pos +

    The current position within the stream.

    +
    descriptor +

    This field is a union that can hold an integer or a pointer. It is used by stream implementations to store file descriptors or FILE* pointers.

    +
    pathname +

    This field is completely ignored by FreeType. However, it is often useful during debugging to use it to store the stream's filename (where available).

    +
    read +

    The stream's input function.

    +
    close +

    The stream's close function.

    +
    memory +

    The memory manager to use to preload frames. This is set internally by FreeType and shouldn't be touched by stream implementations.

    +
    cursor +

    This field is set and used internally by FreeType when parsing frames. In particular, the FT_GET_XXX macros use this instead of the pos field.

    +
    limit +

    This field is set and used internally by FreeType when parsing frames.

    +
    + +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-t1_cid_driver.html b/modules/freetype2/docs/reference/ft2-t1_cid_driver.html new file mode 100644 index 0000000000..f562c3f7a7 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-t1_cid_driver.html @@ -0,0 +1,1361 @@ + + + + + + + + + + + + + + + + + + + + + The Type 1 and CID drivers - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Controlling FreeType Modules » The Type 1 and CID drivers

    +
    +

    The Type 1 and CID drivers

    +

    Synopsis

    +

    It is possible to control the behaviour of FreeType's Type 1 and Type 1 CID drivers with FT_Property_Set and FT_Property_Get.

    +

    Behind the scenes, both drivers use the Adobe CFF engine for hinting; however, the used properties must be specified separately.

    +

    The Type 1 driver's module name is ‘type1’; the CID driver's module name is ‘t1cid’.

    +

    Available properties are hinting-engine, no-stem-darkening, darkening-parameters, and random-seed, as documented in the ‘Driver properties’ section.

    +

    Please see the ‘The CFF driver’ section for more details on the new hinting engine.

    + + + + + + + +
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    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-truetype_engine.html b/modules/freetype2/docs/reference/ft2-truetype_engine.html new file mode 100644 index 0000000000..bb80a8aa1d --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-truetype_engine.html @@ -0,0 +1,1436 @@ + + + + + + + + + + + + + + + + + + + + + The TrueType Engine - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Miscellaneous » The TrueType Engine

    +
    +

    The TrueType Engine

    +

    Synopsis

    +

    This section contains a function used to query the level of TrueType bytecode support compiled in this version of the library.

    +

    FT_TrueTypeEngineType

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      typedef enum  FT_TrueTypeEngineType_
+  {
+    FT_TRUETYPE_ENGINE_TYPE_NONE = 0,
+    FT_TRUETYPE_ENGINE_TYPE_UNPATENTED,
+    FT_TRUETYPE_ENGINE_TYPE_PATENTED
+
+  } FT_TrueTypeEngineType;
+
    + +

    A list of values describing which kind of TrueType bytecode engine is implemented in a given FT_Library instance. It is used by the FT_Get_TrueType_Engine_Type function.

    +

    values

    + + + + +
    FT_TRUETYPE_ENGINE_TYPE_NONE +

    The library doesn't implement any kind of bytecode interpreter.

    +
    FT_TRUETYPE_ENGINE_TYPE_UNPATENTED +

    Deprecated and removed.

    +
    FT_TRUETYPE_ENGINE_TYPE_PATENTED +

    The library implements a bytecode interpreter that covers the full instruction set of the TrueType virtual machine (this was governed by patents until May 2010, hence the name).

    +
    + +

    since

    + +

    2.2

    +
    + +

    FT_Get_TrueType_Engine_Type

    +

    Defined in FT_MODULE_H (freetype/ftmodapi.h).

    +
      FT_EXPORT( FT_TrueTypeEngineType )
+  FT_Get_TrueType_Engine_Type( FT_Library  library );
+
    + +

    Return an FT_TrueTypeEngineType value to indicate which level of the TrueType virtual machine a given library instance supports.

    +

    input

    + + +
    library +

    A library instance.

    +
    + +

    return

    + +

    A value indicating which level is supported.

    +

    since

    + +

    2.2

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-truetype_tables.html b/modules/freetype2/docs/reference/ft2-truetype_tables.html new file mode 100644 index 0000000000..128c96b570 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-truetype_tables.html @@ -0,0 +1,3341 @@ + + + + + + + + + + + + + + + + + + + + + TrueType Tables - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Format-Specific API » TrueType Tables

    +
    +

    TrueType Tables

    +

    Synopsis

    +

    This section contains definitions of some basic tables specific to TrueType and OpenType as well as some routines used to access and process them.

    +

    TT_Header

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      typedef struct  TT_Header_
+  {
+    FT_Fixed   Table_Version;
+    FT_Fixed   Font_Revision;
+
+    FT_Long    CheckSum_Adjust;
+    FT_Long    Magic_Number;
+
+    FT_UShort  Flags;
+    FT_UShort  Units_Per_EM;
+
+    FT_ULong   Created [2];
+    FT_ULong   Modified[2];
+
+    FT_Short   xMin;
+    FT_Short   yMin;
+    FT_Short   xMax;
+    FT_Short   yMax;
+
+    FT_UShort  Mac_Style;
+    FT_UShort  Lowest_Rec_PPEM;
+
+    FT_Short   Font_Direction;
+    FT_Short   Index_To_Loc_Format;
+    FT_Short   Glyph_Data_Format;
+
+  } TT_Header;
+
    + +

    A structure to model a TrueType font header table. All fields follow the OpenType specification. The 64-bit timestamps are stored in two-element arrays Created and Modified, first the upper then the lower 32 bits.

    +
    + +

    TT_HoriHeader

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      typedef struct  TT_HoriHeader_
+  {
+    FT_Fixed   Version;
+    FT_Short   Ascender;
+    FT_Short   Descender;
+    FT_Short   Line_Gap;
+
+    FT_UShort  advance_Width_Max;      /* advance width maximum */
+
+    FT_Short   min_Left_Side_Bearing;  /* minimum left-sb       */
+    FT_Short   min_Right_Side_Bearing; /* minimum right-sb      */
+    FT_Short   xMax_Extent;            /* xmax extents          */
+    FT_Short   caret_Slope_Rise;
+    FT_Short   caret_Slope_Run;
+    FT_Short   caret_Offset;
+
+    FT_Short   Reserved[4];
+
+    FT_Short   metric_Data_Format;
+    FT_UShort  number_Of_HMetrics;
+
+    /* The following fields are not defined by the OpenType specification */
+    /* but they are used to connect the metrics header to the relevant    */
+    /* 'hmtx' table.                                                      */
+
+    void*      long_metrics;
+    void*      short_metrics;
+
+  } TT_HoriHeader;
+
    + +

    A structure to model a TrueType horizontal header, the ‘hhea’ table, as well as the corresponding horizontal metrics table, ‘hmtx’.

    +

    fields

    + + + + + + + + + + + + + + + + + +
    Version +

    The table version.

    +
    Ascender +

    The font's ascender, i.e., the distance from the baseline to the top-most of all glyph points found in the font.

    +

    This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII).

    +

    You should use the sTypoAscender field of the ‘OS/2’ table instead if you want the correct one.

    +
    Descender +

    The font's descender, i.e., the distance from the baseline to the bottom-most of all glyph points found in the font. It is negative.

    +

    This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII).

    +

    You should use the sTypoDescender field of the ‘OS/2’ table instead if you want the correct one.

    +
    Line_Gap +

    The font's line gap, i.e., the distance to add to the ascender and descender to get the BTB, i.e., the baseline-to-baseline distance for the font.

    +
    advance_Width_Max +

    This field is the maximum of all advance widths found in the font. It can be used to compute the maximum width of an arbitrary string of text.

    +
    min_Left_Side_Bearing +

    The minimum left side bearing of all glyphs within the font.

    +
    min_Right_Side_Bearing +

    The minimum right side bearing of all glyphs within the font.

    +
    xMax_Extent +

    The maximum horizontal extent (i.e., the ‘width’ of a glyph's bounding box) for all glyphs in the font.

    +
    caret_Slope_Rise +

    The rise coefficient of the cursor's slope of the cursor (slope=rise/run).

    +
    caret_Slope_Run +

    The run coefficient of the cursor's slope.

    +
    caret_Offset +

    The cursor's offset for slanted fonts.

    +
    Reserved +

    8 reserved bytes.

    +
    metric_Data_Format +

    Always 0.

    +
    number_Of_HMetrics +

    Number of HMetrics entries in the ‘hmtx’ table – this value can be smaller than the total number of glyphs in the font.

    +
    long_metrics +

    A pointer into the ‘hmtx’ table.

    +
    short_metrics +

    A pointer into the ‘hmtx’ table.

    +
    + +

    note

    + +

    For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an ‘MVAR’ table: caret_Slope_Rise, caret_Slope_Run, and caret_Offset.

    +
    + +

    TT_VertHeader

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      typedef struct  TT_VertHeader_
+  {
+    FT_Fixed   Version;
+    FT_Short   Ascender;
+    FT_Short   Descender;
+    FT_Short   Line_Gap;
+
+    FT_UShort  advance_Height_Max;      /* advance height maximum */
+
+    FT_Short   min_Top_Side_Bearing;    /* minimum top-sb          */
+    FT_Short   min_Bottom_Side_Bearing; /* minimum bottom-sb       */
+    FT_Short   yMax_Extent;             /* ymax extents            */
+    FT_Short   caret_Slope_Rise;
+    FT_Short   caret_Slope_Run;
+    FT_Short   caret_Offset;
+
+    FT_Short   Reserved[4];
+
+    FT_Short   metric_Data_Format;
+    FT_UShort  number_Of_VMetrics;
+
+    /* The following fields are not defined by the OpenType specification */
+    /* but they are used to connect the metrics header to the relevant    */
+    /* 'vmtx' table.                                                      */
+
+    void*      long_metrics;
+    void*      short_metrics;
+
+  } TT_VertHeader;
+
    + +

    A structure used to model a TrueType vertical header, the ‘vhea’ table, as well as the corresponding vertical metrics table, ‘vmtx’.

    +

    fields

    + + + + + + + + + + + + + + + + + +
    Version +

    The table version.

    +
    Ascender +

    The font's ascender, i.e., the distance from the baseline to the top-most of all glyph points found in the font.

    +

    This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII).

    +

    You should use the sTypoAscender field of the ‘OS/2’ table instead if you want the correct one.

    +
    Descender +

    The font's descender, i.e., the distance from the baseline to the bottom-most of all glyph points found in the font. It is negative.

    +

    This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII).

    +

    You should use the sTypoDescender field of the ‘OS/2’ table instead if you want the correct one.

    +
    Line_Gap +

    The font's line gap, i.e., the distance to add to the ascender and descender to get the BTB, i.e., the baseline-to-baseline distance for the font.

    +
    advance_Height_Max +

    This field is the maximum of all advance heights found in the font. It can be used to compute the maximum height of an arbitrary string of text.

    +
    min_Top_Side_Bearing +

    The minimum top side bearing of all glyphs within the font.

    +
    min_Bottom_Side_Bearing +

    The minimum bottom side bearing of all glyphs within the font.

    +
    yMax_Extent +

    The maximum vertical extent (i.e., the ‘height’ of a glyph's bounding box) for all glyphs in the font.

    +
    caret_Slope_Rise +

    The rise coefficient of the cursor's slope of the cursor (slope=rise/run).

    +
    caret_Slope_Run +

    The run coefficient of the cursor's slope.

    +
    caret_Offset +

    The cursor's offset for slanted fonts.

    +
    Reserved +

    8 reserved bytes.

    +
    metric_Data_Format +

    Always 0.

    +
    number_Of_VMetrics +

    Number of VMetrics entries in the ‘vmtx’ table – this value can be smaller than the total number of glyphs in the font.

    +
    long_metrics +

    A pointer into the ‘vmtx’ table.

    +
    short_metrics +

    A pointer into the ‘vmtx’ table.

    +
    + +

    note

    + +

    For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an ‘MVAR’ table: Ascender, Descender, Line_Gap, caret_Slope_Rise, caret_Slope_Run, and caret_Offset.

    +
    + +

    TT_OS2

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      typedef struct  TT_OS2_
+  {
+    FT_UShort  version;                /* 0x0001 - more or 0xFFFF */
+    FT_Short   xAvgCharWidth;
+    FT_UShort  usWeightClass;
+    FT_UShort  usWidthClass;
+    FT_UShort  fsType;
+    FT_Short   ySubscriptXSize;
+    FT_Short   ySubscriptYSize;
+    FT_Short   ySubscriptXOffset;
+    FT_Short   ySubscriptYOffset;
+    FT_Short   ySuperscriptXSize;
+    FT_Short   ySuperscriptYSize;
+    FT_Short   ySuperscriptXOffset;
+    FT_Short   ySuperscriptYOffset;
+    FT_Short   yStrikeoutSize;
+    FT_Short   yStrikeoutPosition;
+    FT_Short   sFamilyClass;
+
+    FT_Byte    panose[10];
+
+    FT_ULong   ulUnicodeRange1;        /* Bits 0-31   */
+    FT_ULong   ulUnicodeRange2;        /* Bits 32-63  */
+    FT_ULong   ulUnicodeRange3;        /* Bits 64-95  */
+    FT_ULong   ulUnicodeRange4;        /* Bits 96-127 */
+
+    FT_Char    achVendID[4];
+
+    FT_UShort  fsSelection;
+    FT_UShort  usFirstCharIndex;
+    FT_UShort  usLastCharIndex;
+    FT_Short   sTypoAscender;
+    FT_Short   sTypoDescender;
+    FT_Short   sTypoLineGap;
+    FT_UShort  usWinAscent;
+    FT_UShort  usWinDescent;
+
+    /* only version 1 and higher: */
+
+    FT_ULong   ulCodePageRange1;       /* Bits 0-31   */
+    FT_ULong   ulCodePageRange2;       /* Bits 32-63  */
+
+    /* only version 2 and higher: */
+
+    FT_Short   sxHeight;
+    FT_Short   sCapHeight;
+    FT_UShort  usDefaultChar;
+    FT_UShort  usBreakChar;
+    FT_UShort  usMaxContext;
+
+    /* only version 5 and higher: */
+
+    FT_UShort  usLowerOpticalPointSize;       /* in twips (1/20 points) */
+    FT_UShort  usUpperOpticalPointSize;       /* in twips (1/20 points) */
+
+  } TT_OS2;
+
    + +

    A structure to model a TrueType ‘OS/2’ table. All fields comply to the OpenType specification.

    +

    Note that we now support old Mac fonts that do not include an ‘OS/2’ table. In this case, the version field is always set to 0xFFFF.

    +

    note

    + +

    For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an ‘MVAR’ table: sCapHeight, sTypoAscender, sTypoDescender, sTypoLineGap, sxHeight, usWinAscent, usWinDescent, yStrikeoutPosition, yStrikeoutSize, ySubscriptXOffset, ySubScriptXSize, ySubscriptYOffset, ySubscriptYSize, ySuperscriptXOffset, ySuperscriptXSize, ySuperscriptYOffset, and ySuperscriptYSize.

    +

    Possible values for bits in the ulUnicodeRangeX fields are given by the TT_UCR_XXX macros.

    +
    + +

    TT_Postscript

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      typedef struct  TT_Postscript_
+  {
+    FT_Fixed  FormatType;
+    FT_Fixed  italicAngle;
+    FT_Short  underlinePosition;
+    FT_Short  underlineThickness;
+    FT_ULong  isFixedPitch;
+    FT_ULong  minMemType42;
+    FT_ULong  maxMemType42;
+    FT_ULong  minMemType1;
+    FT_ULong  maxMemType1;
+
+    /* Glyph names follow in the 'post' table, but we don't */
+    /* load them by default.                                */
+
+  } TT_Postscript;
+
    + +

    A structure to model a TrueType ‘post’ table. All fields comply to the OpenType specification. This structure does not reference a font's PostScript glyph names; use FT_Get_Glyph_Name to retrieve them.

    +

    note

    + +

    For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an ‘MVAR’ table: underlinePosition and underlineThickness.

    +
    + +

    TT_PCLT

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      typedef struct  TT_PCLT_
+  {
+    FT_Fixed   Version;
+    FT_ULong   FontNumber;
+    FT_UShort  Pitch;
+    FT_UShort  xHeight;
+    FT_UShort  Style;
+    FT_UShort  TypeFamily;
+    FT_UShort  CapHeight;
+    FT_UShort  SymbolSet;
+    FT_Char    TypeFace[16];
+    FT_Char    CharacterComplement[8];
+    FT_Char    FileName[6];
+    FT_Char    StrokeWeight;
+    FT_Char    WidthType;
+    FT_Byte    SerifStyle;
+    FT_Byte    Reserved;
+
+  } TT_PCLT;
+
    + +

    A structure to model a TrueType ‘PCLT’ table. All fields comply to the OpenType specification.

    +
    + +

    TT_MaxProfile

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      typedef struct  TT_MaxProfile_
+  {
+    FT_Fixed   version;
+    FT_UShort  numGlyphs;
+    FT_UShort  maxPoints;
+    FT_UShort  maxContours;
+    FT_UShort  maxCompositePoints;
+    FT_UShort  maxCompositeContours;
+    FT_UShort  maxZones;
+    FT_UShort  maxTwilightPoints;
+    FT_UShort  maxStorage;
+    FT_UShort  maxFunctionDefs;
+    FT_UShort  maxInstructionDefs;
+    FT_UShort  maxStackElements;
+    FT_UShort  maxSizeOfInstructions;
+    FT_UShort  maxComponentElements;
+    FT_UShort  maxComponentDepth;
+
+  } TT_MaxProfile;
+
    + +

    The maximum profile (‘maxp’) table contains many max values, which can be used to pre-allocate arrays for speeding up glyph loading and hinting.

    +

    fields

    + + + + + + + + + + + + + + + + +
    version +

    The version number.

    +
    numGlyphs +

    The number of glyphs in this TrueType font.

    +
    maxPoints +

    The maximum number of points in a non-composite TrueType glyph. See also maxCompositePoints.

    +
    maxContours +

    The maximum number of contours in a non-composite TrueType glyph. See also maxCompositeContours.

    +
    maxCompositePoints +

    The maximum number of points in a composite TrueType glyph. See also maxPoints.

    +
    maxCompositeContours +

    The maximum number of contours in a composite TrueType glyph. See also maxContours.

    +
    maxZones +

    The maximum number of zones used for glyph hinting.

    +
    maxTwilightPoints +

    The maximum number of points in the twilight zone used for glyph hinting.

    +
    maxStorage +

    The maximum number of elements in the storage area used for glyph hinting.

    +
    maxFunctionDefs +

    The maximum number of function definitions in the TrueType bytecode for this font.

    +
    maxInstructionDefs +

    The maximum number of instruction definitions in the TrueType bytecode for this font.

    +
    maxStackElements +

    The maximum number of stack elements used during bytecode interpretation.

    +
    maxSizeOfInstructions +

    The maximum number of TrueType opcodes used for glyph hinting.

    +
    maxComponentElements +

    The maximum number of simple (i.e., non-composite) glyphs in a composite glyph.

    +
    maxComponentDepth +

    The maximum nesting depth of composite glyphs.

    +
    + +

    note

    + +

    This structure is only used during font loading.

    +
    + +

    FT_Sfnt_Tag

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      typedef enum  FT_Sfnt_Tag_
+  {
+    FT_SFNT_HEAD,
+    FT_SFNT_MAXP,
+    FT_SFNT_OS2,
+    FT_SFNT_HHEA,
+    FT_SFNT_VHEA,
+    FT_SFNT_POST,
+    FT_SFNT_PCLT,
+
+    FT_SFNT_MAX
+
+  } FT_Sfnt_Tag;
+
+  /* these constants are deprecated; use the corresponding `FT_Sfnt_Tag` */
+  /* values instead                                                      */
+#define ft_sfnt_head  FT_SFNT_HEAD
+#define ft_sfnt_maxp  FT_SFNT_MAXP
+#define ft_sfnt_os2   FT_SFNT_OS2
+#define ft_sfnt_hhea  FT_SFNT_HHEA
+#define ft_sfnt_vhea  FT_SFNT_VHEA
+#define ft_sfnt_post  FT_SFNT_POST
+#define ft_sfnt_pclt  FT_SFNT_PCLT
+
    + +

    An enumeration to specify indices of SFNT tables loaded and parsed by FreeType during initialization of an SFNT font. Used in the FT_Get_Sfnt_Table API function.

    +

    values

    + + + + + + + + +
    FT_SFNT_HEAD +

    To access the font's TT_Header structure.

    +
    FT_SFNT_MAXP +

    To access the font's TT_MaxProfile structure.

    +
    FT_SFNT_OS2 +

    To access the font's TT_OS2 structure.

    +
    FT_SFNT_HHEA +

    To access the font's TT_HoriHeader structure.

    +
    FT_SFNT_VHEA +

    To access the font's TT_VertHeader structure.

    +
    FT_SFNT_POST +

    To access the font's TT_Postscript structure.

    +
    FT_SFNT_PCLT +

    To access the font's TT_PCLT structure.

    +
    + +
    + +

    FT_Get_Sfnt_Table

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      FT_EXPORT( void* )
+  FT_Get_Sfnt_Table( FT_Face      face,
+                     FT_Sfnt_Tag  tag );
+
    + +

    Return a pointer to a given SFNT table stored within a face.

    +

    input

    + + + +
    face +

    A handle to the source.

    +
    tag +

    The index of the SFNT table.

    +
    + +

    return

    + +

    A type-less pointer to the table. This will be NULL in case of error, or if the corresponding table was not found OR loaded from the file.

    +

    Use a typecast according to tag to access the structure elements.

    +

    note

    + +

    The table is owned by the face object and disappears with it.

    +

    This function is only useful to access SFNT tables that are loaded by the sfnt, truetype, and opentype drivers. See FT_Sfnt_Tag for a list.

    +

    example

    + +

    Here is an example demonstrating access to the ‘vhea’ table. +

      TT_VertHeader*  vert_header;
+
+
+  vert_header =
+    (TT_VertHeader*)FT_Get_Sfnt_Table( face, FT_SFNT_VHEA );
+

    +
    + +

    FT_Load_Sfnt_Table

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Load_Sfnt_Table( FT_Face    face,
+                      FT_ULong   tag,
+                      FT_Long    offset,
+                      FT_Byte*   buffer,
+                      FT_ULong*  length );
+
    + +

    Load any SFNT font table into client memory.

    +

    input

    + + + + +
    face +

    A handle to the source face.

    +
    tag +

    The four-byte tag of the table to load. Use value 0 if you want to access the whole font file. Otherwise, you can use one of the definitions found in the FT_TRUETYPE_TAGS_H file, or forge a new one with FT_MAKE_TAG.

    +
    offset +

    The starting offset in the table (or file if tag == 0).

    +
    + +

    output

    + + +
    buffer +

    The target buffer address. The client must ensure that the memory array is big enough to hold the data.

    +
    + +

    inout

    + + +
    length +

    If the length parameter is NULL, try to load the whole table. Return an error code if it fails.

    +

    Else, if *length is 0, exit immediately while returning the table's (or file) full size in it.

    +

    Else the number of bytes to read from the table or file, from the starting offset.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    If you need to determine the table's length you should first call this function with *length set to 0, as in the following example: +

      FT_ULong  length = 0;
+
+
+  error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length );
+  if ( error ) { ... table does not exist ... }
+
+  buffer = malloc( length );
+  if ( buffer == NULL ) { ... not enough memory ... }
+
+  error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length );
+  if ( error ) { ... could not load table ... }
+

    +

    Note that structures like TT_Header or TT_OS2 can't be used with this function; they are limited to FT_Get_Sfnt_Table. Reason is that those structures depend on the processor architecture, with varying size (e.g. 32bit vs. 64bit) or order (big endian vs. little endian).

    +
    + +

    FT_Sfnt_Table_Info

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Sfnt_Table_Info( FT_Face    face,
+                      FT_UInt    table_index,
+                      FT_ULong  *tag,
+                      FT_ULong  *length );
+
    + +

    Return information on an SFNT table.

    +

    input

    + + + +
    face +

    A handle to the source face.

    +
    table_index +

    The index of an SFNT table. The function returns FT_Err_Table_Missing for an invalid value.

    +
    + +

    inout

    + + +
    tag +

    The name tag of the SFNT table. If the value is NULL, table_index is ignored, and length returns the number of SFNT tables in the font.

    +
    + +

    output

    + + +
    length +

    The length of the SFNT table (or the number of SFNT tables, depending on tag).

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    While parsing fonts, FreeType handles SFNT tables with length zero as missing.

    +
    + +

    FT_Get_CMap_Language_ID

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      FT_EXPORT( FT_ULong )
+  FT_Get_CMap_Language_ID( FT_CharMap  charmap );
+
    + +

    Return cmap language ID as specified in the OpenType standard. Definitions of language ID values are in file FT_TRUETYPE_IDS_H.

    +

    input

    + + +
    charmap +

    The target charmap.

    +
    + +

    return

    + +

    The language ID of charmap. If charmap doesn't belong to an SFNT face, just return 0 as the default value.

    +

    For a format 14 cmap (to access Unicode IVS), the return value is 0xFFFFFFFF.

    +
    + +

    FT_Get_CMap_Format

    +

    Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).

    +
      FT_EXPORT( FT_Long )
+  FT_Get_CMap_Format( FT_CharMap  charmap );
+
    + +

    Return the format of an SFNT ‘cmap’ table.

    +

    input

    + + +
    charmap +

    The target charmap.

    +
    + +

    return

    + +

    The format of charmap. If charmap doesn't belong to an SFNT face, return -1.

    +
    + +

    FT_PARAM_TAG_UNPATENTED_HINTING

    +
    #define FT_PARAM_TAG_UNPATENTED_HINTING \
+          FT_MAKE_TAG( 'u', 'n', 'p', 'a' )
+
    + +

    Deprecated, no effect.

    +

    Previously: A constant used as the tag of an FT_Parameter structure to indicate that unpatented methods only should be used by the TrueType bytecode interpreter for a typeface opened by FT_Open_Face.

    +
    + +

    TT_PLATFORM_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
    #define TT_PLATFORM_APPLE_UNICODE  0
+#define TT_PLATFORM_MACINTOSH      1
+#define TT_PLATFORM_ISO            2 /* deprecated */
+#define TT_PLATFORM_MICROSOFT      3
+#define TT_PLATFORM_CUSTOM         4
+#define TT_PLATFORM_ADOBE          7 /* artificial */
+
    + +

    A list of valid values for the platform_id identifier code in FT_CharMapRec and FT_SfntName structures.

    +

    values

    + + + + + + + +
    TT_PLATFORM_APPLE_UNICODE +

    Used by Apple to indicate a Unicode character map and/or name entry. See TT_APPLE_ID_XXX for corresponding encoding_id values. Note that name entries in this format are coded as big-endian UCS-2 character codes only.

    +
    TT_PLATFORM_MACINTOSH +

    Used by Apple to indicate a MacOS-specific charmap and/or name entry. See TT_MAC_ID_XXX for corresponding encoding_id values. Note that most TrueType fonts contain an Apple roman charmap to be usable on MacOS systems (even if they contain a Microsoft charmap as well).

    +
    TT_PLATFORM_ISO +

    This value was used to specify ISO/IEC 10646 charmaps. It is however now deprecated. See TT_ISO_ID_XXX for a list of corresponding encoding_id values.

    +
    TT_PLATFORM_MICROSOFT +

    Used by Microsoft to indicate Windows-specific charmaps. See TT_MS_ID_XXX for a list of corresponding encoding_id values. Note that most fonts contain a Unicode charmap using (TT_PLATFORM_MICROSOFT, TT_MS_ID_UNICODE_CS).

    +
    TT_PLATFORM_CUSTOM +

    Used to indicate application-specific charmaps.

    +
    TT_PLATFORM_ADOBE +

    This value isn't part of any font format specification, but is used by FreeType to report Adobe-specific charmaps in an FT_CharMapRec structure. See TT_ADOBE_ID_XXX.

    +
    + +
    + +

    TT_APPLE_ID_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
    #define TT_APPLE_ID_DEFAULT           0 /* Unicode 1.0                   */
+#define TT_APPLE_ID_UNICODE_1_1       1 /* specify Hangul at U+34xx      */
+#define TT_APPLE_ID_ISO_10646         2 /* deprecated                    */
+#define TT_APPLE_ID_UNICODE_2_0       3 /* or later                      */
+#define TT_APPLE_ID_UNICODE_32        4 /* 2.0 or later, full repertoire */
+#define TT_APPLE_ID_VARIANT_SELECTOR  5 /* variation selector data       */
+#define TT_APPLE_ID_FULL_UNICODE      6 /* used with type 13 cmaps       */
+
    + +

    A list of valid values for the encoding_id for TT_PLATFORM_APPLE_UNICODE charmaps and name entries.

    +

    values

    + + + + + + + + +
    TT_APPLE_ID_DEFAULT +

    Unicode version 1.0.

    +
    TT_APPLE_ID_UNICODE_1_1 +

    Unicode 1.1; specifies Hangul characters starting at U+34xx.

    +
    TT_APPLE_ID_ISO_10646 +

    Deprecated (identical to preceding).

    +
    TT_APPLE_ID_UNICODE_2_0 +

    Unicode 2.0 and beyond (UTF-16 BMP only).

    +
    TT_APPLE_ID_UNICODE_32 +

    Unicode 3.1 and beyond, using UTF-32.

    +
    TT_APPLE_ID_VARIANT_SELECTOR +

    From Adobe, not Apple. Not a normal cmap. Specifies variations on a real cmap.

    +
    TT_APPLE_ID_FULL_UNICODE +

    Used for fallback fonts that provide complete Unicode coverage with a type 13 cmap.

    +
    + +
    + +

    TT_MAC_ID_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
    #define TT_MAC_ID_ROMAN                 0
+#define TT_MAC_ID_JAPANESE              1
+#define TT_MAC_ID_TRADITIONAL_CHINESE   2
+#define TT_MAC_ID_KOREAN                3
+#define TT_MAC_ID_ARABIC                4
+#define TT_MAC_ID_HEBREW                5
+#define TT_MAC_ID_GREEK                 6
+#define TT_MAC_ID_RUSSIAN               7
+#define TT_MAC_ID_RSYMBOL               8
+#define TT_MAC_ID_DEVANAGARI            9
+#define TT_MAC_ID_GURMUKHI             10
+#define TT_MAC_ID_GUJARATI             11
+#define TT_MAC_ID_ORIYA                12
+#define TT_MAC_ID_BENGALI              13
+#define TT_MAC_ID_TAMIL                14
+#define TT_MAC_ID_TELUGU               15
+#define TT_MAC_ID_KANNADA              16
+#define TT_MAC_ID_MALAYALAM            17
+#define TT_MAC_ID_SINHALESE            18
+#define TT_MAC_ID_BURMESE              19
+#define TT_MAC_ID_KHMER                20
+#define TT_MAC_ID_THAI                 21
+#define TT_MAC_ID_LAOTIAN              22
+#define TT_MAC_ID_GEORGIAN             23
+#define TT_MAC_ID_ARMENIAN             24
+#define TT_MAC_ID_MALDIVIAN            25
+#define TT_MAC_ID_SIMPLIFIED_CHINESE   25
+#define TT_MAC_ID_TIBETAN              26
+#define TT_MAC_ID_MONGOLIAN            27
+#define TT_MAC_ID_GEEZ                 28
+#define TT_MAC_ID_SLAVIC               29
+#define TT_MAC_ID_VIETNAMESE           30
+#define TT_MAC_ID_SINDHI               31
+#define TT_MAC_ID_UNINTERP             32
+
    + +

    A list of valid values for the encoding_id for TT_PLATFORM_MACINTOSH charmaps and name entries.

    +
    + +

    TT_ISO_ID_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
    #define TT_ISO_ID_7BIT_ASCII  0
+#define TT_ISO_ID_10646       1
+#define TT_ISO_ID_8859_1      2
+
    + +

    A list of valid values for the encoding_id for TT_PLATFORM_ISO charmaps and name entries.

    +

    Their use is now deprecated.

    +

    values

    + + + + +
    TT_ISO_ID_7BIT_ASCII +

    ASCII.

    +
    TT_ISO_ID_10646 +

    ISO/10646.

    +
    TT_ISO_ID_8859_1 +

    Also known as Latin-1.

    +
    + +
    + +

    TT_MS_ID_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
    #define TT_MS_ID_SYMBOL_CS    0
+#define TT_MS_ID_UNICODE_CS   1
+#define TT_MS_ID_SJIS         2
+#define TT_MS_ID_PRC          3
+#define TT_MS_ID_BIG_5        4
+#define TT_MS_ID_WANSUNG      5
+#define TT_MS_ID_JOHAB        6
+#define TT_MS_ID_UCS_4       10
+
+  /* this value is deprecated */
+#define TT_MS_ID_GB2312  TT_MS_ID_PRC
+
    + +

    A list of valid values for the encoding_id for TT_PLATFORM_MICROSOFT charmaps and name entries.

    +

    values

    + + + + + + + + + +
    TT_MS_ID_SYMBOL_CS +

    Microsoft symbol encoding. See FT_ENCODING_MS_SYMBOL.

    +
    TT_MS_ID_UNICODE_CS +

    Microsoft WGL4 charmap, matching Unicode. See FT_ENCODING_UNICODE.

    +
    TT_MS_ID_SJIS +

    Shift JIS Japanese encoding. See FT_ENCODING_SJIS.

    +
    TT_MS_ID_PRC +

    Chinese encodings as used in the People's Republic of China (PRC). This means the encodings GB 2312 and its supersets GBK and GB 18030. See FT_ENCODING_PRC.

    +
    TT_MS_ID_BIG_5 +

    Traditional Chinese as used in Taiwan and Hong Kong. See FT_ENCODING_BIG5.

    +
    TT_MS_ID_WANSUNG +

    Korean Extended Wansung encoding. See FT_ENCODING_WANSUNG.

    +
    TT_MS_ID_JOHAB +

    Korean Johab encoding. See FT_ENCODING_JOHAB.

    +
    TT_MS_ID_UCS_4 +

    UCS-4 or UTF-32 charmaps. This has been added to the OpenType specification version 1.4 (mid-2001).

    +
    + +
    + +

    TT_ADOBE_ID_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
    #define TT_ADOBE_ID_STANDARD  0
+#define TT_ADOBE_ID_EXPERT    1
+#define TT_ADOBE_ID_CUSTOM    2
+#define TT_ADOBE_ID_LATIN_1   3
+
    + +

    A list of valid values for the encoding_id for TT_PLATFORM_ADOBE charmaps. This is a FreeType-specific extension!

    +

    values

    + + + + + +
    TT_ADOBE_ID_STANDARD +

    Adobe standard encoding.

    +
    TT_ADOBE_ID_EXPERT +

    Adobe expert encoding.

    +
    TT_ADOBE_ID_CUSTOM +

    Adobe custom encoding.

    +
    TT_ADOBE_ID_LATIN_1 +

    Adobe Latin 1 encoding.

    +
    + +
    + +

    TT_MAC_LANGID_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
    #define TT_MAC_LANGID_ENGLISH                       0
+#define TT_MAC_LANGID_FRENCH                        1
+#define TT_MAC_LANGID_GERMAN                        2
+#define TT_MAC_LANGID_ITALIAN                       3
+#define TT_MAC_LANGID_DUTCH                         4
+#define TT_MAC_LANGID_SWEDISH                       5
+#define TT_MAC_LANGID_SPANISH                       6
+#define TT_MAC_LANGID_DANISH                        7
+#define TT_MAC_LANGID_PORTUGUESE                    8
+#define TT_MAC_LANGID_NORWEGIAN                     9
+#define TT_MAC_LANGID_HEBREW                       10
+#define TT_MAC_LANGID_JAPANESE                     11
+#define TT_MAC_LANGID_ARABIC                       12
+#define TT_MAC_LANGID_FINNISH                      13
+#define TT_MAC_LANGID_GREEK                        14
+#define TT_MAC_LANGID_ICELANDIC                    15
+#define TT_MAC_LANGID_MALTESE                      16
+#define TT_MAC_LANGID_TURKISH                      17
+#define TT_MAC_LANGID_CROATIAN                     18
+#define TT_MAC_LANGID_CHINESE_TRADITIONAL          19
+#define TT_MAC_LANGID_URDU                         20
+#define TT_MAC_LANGID_HINDI                        21
+#define TT_MAC_LANGID_THAI                         22
+#define TT_MAC_LANGID_KOREAN                       23
+#define TT_MAC_LANGID_LITHUANIAN                   24
+#define TT_MAC_LANGID_POLISH                       25
+#define TT_MAC_LANGID_HUNGARIAN                    26
+#define TT_MAC_LANGID_ESTONIAN                     27
+#define TT_MAC_LANGID_LETTISH                      28
+#define TT_MAC_LANGID_SAAMISK                      29
+#define TT_MAC_LANGID_FAEROESE                     30
+#define TT_MAC_LANGID_FARSI                        31
+#define TT_MAC_LANGID_RUSSIAN                      32
+#define TT_MAC_LANGID_CHINESE_SIMPLIFIED           33
+#define TT_MAC_LANGID_FLEMISH                      34
+#define TT_MAC_LANGID_IRISH                        35
+#define TT_MAC_LANGID_ALBANIAN                     36
+#define TT_MAC_LANGID_ROMANIAN                     37
+#define TT_MAC_LANGID_CZECH                        38
+#define TT_MAC_LANGID_SLOVAK                       39
+#define TT_MAC_LANGID_SLOVENIAN                    40
+#define TT_MAC_LANGID_YIDDISH                      41
+#define TT_MAC_LANGID_SERBIAN                      42
+#define TT_MAC_LANGID_MACEDONIAN                   43
+#define TT_MAC_LANGID_BULGARIAN                    44
+#define TT_MAC_LANGID_UKRAINIAN                    45
+#define TT_MAC_LANGID_BYELORUSSIAN                 46
+#define TT_MAC_LANGID_UZBEK                        47
+#define TT_MAC_LANGID_KAZAKH                       48
+#define TT_MAC_LANGID_AZERBAIJANI                  49
+#define TT_MAC_LANGID_AZERBAIJANI_CYRILLIC_SCRIPT  49
+#define TT_MAC_LANGID_AZERBAIJANI_ARABIC_SCRIPT    50
+#define TT_MAC_LANGID_ARMENIAN                     51
+#define TT_MAC_LANGID_GEORGIAN                     52
+#define TT_MAC_LANGID_MOLDAVIAN                    53
+#define TT_MAC_LANGID_KIRGHIZ                      54
+#define TT_MAC_LANGID_TAJIKI                       55
+#define TT_MAC_LANGID_TURKMEN                      56
+#define TT_MAC_LANGID_MONGOLIAN                    57
+#define TT_MAC_LANGID_MONGOLIAN_MONGOLIAN_SCRIPT   57
+#define TT_MAC_LANGID_MONGOLIAN_CYRILLIC_SCRIPT    58
+#define TT_MAC_LANGID_PASHTO                       59
+#define TT_MAC_LANGID_KURDISH                      60
+#define TT_MAC_LANGID_KASHMIRI                     61
+#define TT_MAC_LANGID_SINDHI                       62
+#define TT_MAC_LANGID_TIBETAN                      63
+#define TT_MAC_LANGID_NEPALI                       64
+#define TT_MAC_LANGID_SANSKRIT                     65
+#define TT_MAC_LANGID_MARATHI                      66
+#define TT_MAC_LANGID_BENGALI                      67
+#define TT_MAC_LANGID_ASSAMESE                     68
+#define TT_MAC_LANGID_GUJARATI                     69
+#define TT_MAC_LANGID_PUNJABI                      70
+#define TT_MAC_LANGID_ORIYA                        71
+#define TT_MAC_LANGID_MALAYALAM                    72
+#define TT_MAC_LANGID_KANNADA                      73
+#define TT_MAC_LANGID_TAMIL                        74
+#define TT_MAC_LANGID_TELUGU                       75
+#define TT_MAC_LANGID_SINHALESE                    76
+#define TT_MAC_LANGID_BURMESE                      77
+#define TT_MAC_LANGID_KHMER                        78
+#define TT_MAC_LANGID_LAO                          79
+#define TT_MAC_LANGID_VIETNAMESE                   80
+#define TT_MAC_LANGID_INDONESIAN                   81
+#define TT_MAC_LANGID_TAGALOG                      82
+#define TT_MAC_LANGID_MALAY_ROMAN_SCRIPT           83
+#define TT_MAC_LANGID_MALAY_ARABIC_SCRIPT          84
+#define TT_MAC_LANGID_AMHARIC                      85
+#define TT_MAC_LANGID_TIGRINYA                     86
+#define TT_MAC_LANGID_GALLA                        87
+#define TT_MAC_LANGID_SOMALI                       88
+#define TT_MAC_LANGID_SWAHILI                      89
+#define TT_MAC_LANGID_RUANDA                       90
+#define TT_MAC_LANGID_RUNDI                        91
+#define TT_MAC_LANGID_CHEWA                        92
+#define TT_MAC_LANGID_MALAGASY                     93
+#define TT_MAC_LANGID_ESPERANTO                    94
+#define TT_MAC_LANGID_WELSH                       128
+#define TT_MAC_LANGID_BASQUE                      129
+#define TT_MAC_LANGID_CATALAN                     130
+#define TT_MAC_LANGID_LATIN                       131
+#define TT_MAC_LANGID_QUECHUA                     132
+#define TT_MAC_LANGID_GUARANI                     133
+#define TT_MAC_LANGID_AYMARA                      134
+#define TT_MAC_LANGID_TATAR                       135
+#define TT_MAC_LANGID_UIGHUR                      136
+#define TT_MAC_LANGID_DZONGKHA                    137
+#define TT_MAC_LANGID_JAVANESE                    138
+#define TT_MAC_LANGID_SUNDANESE                   139
+
+  /* The following codes are new as of 2000-03-10 */
+#define TT_MAC_LANGID_GALICIAN                    140
+#define TT_MAC_LANGID_AFRIKAANS                   141
+#define TT_MAC_LANGID_BRETON                      142
+#define TT_MAC_LANGID_INUKTITUT                   143
+#define TT_MAC_LANGID_SCOTTISH_GAELIC             144
+#define TT_MAC_LANGID_MANX_GAELIC                 145
+#define TT_MAC_LANGID_IRISH_GAELIC                146
+#define TT_MAC_LANGID_TONGAN                      147
+#define TT_MAC_LANGID_GREEK_POLYTONIC             148
+#define TT_MAC_LANGID_GREELANDIC                  149
+#define TT_MAC_LANGID_AZERBAIJANI_ROMAN_SCRIPT    150
+
    + +

    Possible values of the language identifier field in the name records of the SFNT ‘name’ table if the ‘platform’ identifier code is TT_PLATFORM_MACINTOSH. These values are also used as return values for function FT_Get_CMap_Language_ID.

    +

    The canonical source for Apple's IDs is

    +

    https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6name.html

    +
    + +

    TT_MS_LANGID_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
    #define TT_MS_LANGID_ARABIC_SAUDI_ARABIA               0x0401
+#define TT_MS_LANGID_ARABIC_IRAQ                       0x0801
+#define TT_MS_LANGID_ARABIC_EGYPT                      0x0C01
+#define TT_MS_LANGID_ARABIC_LIBYA                      0x1001
+#define TT_MS_LANGID_ARABIC_ALGERIA                    0x1401
+#define TT_MS_LANGID_ARABIC_MOROCCO                    0x1801
+#define TT_MS_LANGID_ARABIC_TUNISIA                    0x1C01
+#define TT_MS_LANGID_ARABIC_OMAN                       0x2001
+#define TT_MS_LANGID_ARABIC_YEMEN                      0x2401
+#define TT_MS_LANGID_ARABIC_SYRIA                      0x2801
+#define TT_MS_LANGID_ARABIC_JORDAN                     0x2C01
+#define TT_MS_LANGID_ARABIC_LEBANON                    0x3001
+#define TT_MS_LANGID_ARABIC_KUWAIT                     0x3401
+#define TT_MS_LANGID_ARABIC_UAE                        0x3801
+#define TT_MS_LANGID_ARABIC_BAHRAIN                    0x3C01
+#define TT_MS_LANGID_ARABIC_QATAR                      0x4001
+#define TT_MS_LANGID_BULGARIAN_BULGARIA                0x0402
+#define TT_MS_LANGID_CATALAN_CATALAN                   0x0403
+#define TT_MS_LANGID_CHINESE_TAIWAN                    0x0404
+#define TT_MS_LANGID_CHINESE_PRC                       0x0804
+#define TT_MS_LANGID_CHINESE_HONG_KONG                 0x0C04
+#define TT_MS_LANGID_CHINESE_SINGAPORE                 0x1004
+#define TT_MS_LANGID_CHINESE_MACAO                     0x1404
+#define TT_MS_LANGID_CZECH_CZECH_REPUBLIC              0x0405
+#define TT_MS_LANGID_DANISH_DENMARK                    0x0406
+#define TT_MS_LANGID_GERMAN_GERMANY                    0x0407
+#define TT_MS_LANGID_GERMAN_SWITZERLAND                0x0807
+#define TT_MS_LANGID_GERMAN_AUSTRIA                    0x0C07
+#define TT_MS_LANGID_GERMAN_LUXEMBOURG                 0x1007
+#define TT_MS_LANGID_GERMAN_LIECHTENSTEIN              0x1407
+#define TT_MS_LANGID_GREEK_GREECE                      0x0408
+#define TT_MS_LANGID_ENGLISH_UNITED_STATES             0x0409
+#define TT_MS_LANGID_ENGLISH_UNITED_KINGDOM            0x0809
+#define TT_MS_LANGID_ENGLISH_AUSTRALIA                 0x0C09
+#define TT_MS_LANGID_ENGLISH_CANADA                    0x1009
+#define TT_MS_LANGID_ENGLISH_NEW_ZEALAND               0x1409
+#define TT_MS_LANGID_ENGLISH_IRELAND                   0x1809
+#define TT_MS_LANGID_ENGLISH_SOUTH_AFRICA              0x1C09
+#define TT_MS_LANGID_ENGLISH_JAMAICA                   0x2009
+#define TT_MS_LANGID_ENGLISH_CARIBBEAN                 0x2409
+#define TT_MS_LANGID_ENGLISH_BELIZE                    0x2809
+#define TT_MS_LANGID_ENGLISH_TRINIDAD                  0x2C09
+#define TT_MS_LANGID_ENGLISH_ZIMBABWE                  0x3009
+#define TT_MS_LANGID_ENGLISH_PHILIPPINES               0x3409
+#define TT_MS_LANGID_ENGLISH_INDIA                     0x4009
+#define TT_MS_LANGID_ENGLISH_MALAYSIA                  0x4409
+#define TT_MS_LANGID_ENGLISH_SINGAPORE                 0x4809
+#define TT_MS_LANGID_SPANISH_SPAIN_TRADITIONAL_SORT    0x040A
+#define TT_MS_LANGID_SPANISH_MEXICO                    0x080A
+#define TT_MS_LANGID_SPANISH_SPAIN_MODERN_SORT         0x0C0A
+#define TT_MS_LANGID_SPANISH_GUATEMALA                 0x100A
+#define TT_MS_LANGID_SPANISH_COSTA_RICA                0x140A
+#define TT_MS_LANGID_SPANISH_PANAMA                    0x180A
+#define TT_MS_LANGID_SPANISH_DOMINICAN_REPUBLIC        0x1C0A
+#define TT_MS_LANGID_SPANISH_VENEZUELA                 0x200A
+#define TT_MS_LANGID_SPANISH_COLOMBIA                  0x240A
+#define TT_MS_LANGID_SPANISH_PERU                      0x280A
+#define TT_MS_LANGID_SPANISH_ARGENTINA                 0x2C0A
+#define TT_MS_LANGID_SPANISH_ECUADOR                   0x300A
+#define TT_MS_LANGID_SPANISH_CHILE                     0x340A
+#define TT_MS_LANGID_SPANISH_URUGUAY                   0x380A
+#define TT_MS_LANGID_SPANISH_PARAGUAY                  0x3C0A
+#define TT_MS_LANGID_SPANISH_BOLIVIA                   0x400A
+#define TT_MS_LANGID_SPANISH_EL_SALVADOR               0x440A
+#define TT_MS_LANGID_SPANISH_HONDURAS                  0x480A
+#define TT_MS_LANGID_SPANISH_NICARAGUA                 0x4C0A
+#define TT_MS_LANGID_SPANISH_PUERTO_RICO               0x500A
+#define TT_MS_LANGID_SPANISH_UNITED_STATES             0x540A
+#define TT_MS_LANGID_FINNISH_FINLAND                   0x040B
+#define TT_MS_LANGID_FRENCH_FRANCE                     0x040C
+#define TT_MS_LANGID_FRENCH_BELGIUM                    0x080C
+#define TT_MS_LANGID_FRENCH_CANADA                     0x0C0C
+#define TT_MS_LANGID_FRENCH_SWITZERLAND                0x100C
+#define TT_MS_LANGID_FRENCH_LUXEMBOURG                 0x140C
+#define TT_MS_LANGID_FRENCH_MONACO                     0x180C
+#define TT_MS_LANGID_HEBREW_ISRAEL                     0x040D
+#define TT_MS_LANGID_HUNGARIAN_HUNGARY                 0x040E
+#define TT_MS_LANGID_ICELANDIC_ICELAND                 0x040F
+#define TT_MS_LANGID_ITALIAN_ITALY                     0x0410
+#define TT_MS_LANGID_ITALIAN_SWITZERLAND               0x0810
+#define TT_MS_LANGID_JAPANESE_JAPAN                    0x0411
+#define TT_MS_LANGID_KOREAN_KOREA                      0x0412
+#define TT_MS_LANGID_DUTCH_NETHERLANDS                 0x0413
+#define TT_MS_LANGID_DUTCH_BELGIUM                     0x0813
+#define TT_MS_LANGID_NORWEGIAN_NORWAY_BOKMAL           0x0414
+#define TT_MS_LANGID_NORWEGIAN_NORWAY_NYNORSK          0x0814
+#define TT_MS_LANGID_POLISH_POLAND                     0x0415
+#define TT_MS_LANGID_PORTUGUESE_BRAZIL                 0x0416
+#define TT_MS_LANGID_PORTUGUESE_PORTUGAL               0x0816
+#define TT_MS_LANGID_ROMANSH_SWITZERLAND               0x0417
+#define TT_MS_LANGID_ROMANIAN_ROMANIA                  0x0418
+#define TT_MS_LANGID_RUSSIAN_RUSSIA                    0x0419
+#define TT_MS_LANGID_CROATIAN_CROATIA                  0x041A
+#define TT_MS_LANGID_SERBIAN_SERBIA_LATIN              0x081A
+#define TT_MS_LANGID_SERBIAN_SERBIA_CYRILLIC           0x0C1A
+#define TT_MS_LANGID_CROATIAN_BOSNIA_HERZEGOVINA       0x101A
+#define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZEGOVINA        0x141A
+#define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_LATIN         0x181A
+#define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_CYRILLIC      0x1C1A
+#define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZ_CYRILLIC      0x201A
+#define TT_MS_LANGID_SLOVAK_SLOVAKIA                   0x041B
+#define TT_MS_LANGID_ALBANIAN_ALBANIA                  0x041C
+#define TT_MS_LANGID_SWEDISH_SWEDEN                    0x041D
+#define TT_MS_LANGID_SWEDISH_FINLAND                   0x081D
+#define TT_MS_LANGID_THAI_THAILAND                     0x041E
+#define TT_MS_LANGID_TURKISH_TURKEY                    0x041F
+#define TT_MS_LANGID_URDU_PAKISTAN                     0x0420
+#define TT_MS_LANGID_INDONESIAN_INDONESIA              0x0421
+#define TT_MS_LANGID_UKRAINIAN_UKRAINE                 0x0422
+#define TT_MS_LANGID_BELARUSIAN_BELARUS                0x0423
+#define TT_MS_LANGID_SLOVENIAN_SLOVENIA                0x0424
+#define TT_MS_LANGID_ESTONIAN_ESTONIA                  0x0425
+#define TT_MS_LANGID_LATVIAN_LATVIA                    0x0426
+#define TT_MS_LANGID_LITHUANIAN_LITHUANIA              0x0427
+#define TT_MS_LANGID_TAJIK_TAJIKISTAN                  0x0428
+#define TT_MS_LANGID_VIETNAMESE_VIET_NAM               0x042A
+#define TT_MS_LANGID_ARMENIAN_ARMENIA                  0x042B
+#define TT_MS_LANGID_AZERI_AZERBAIJAN_LATIN            0x042C
+#define TT_MS_LANGID_AZERI_AZERBAIJAN_CYRILLIC         0x082C
+#define TT_MS_LANGID_BASQUE_BASQUE                     0x042D
+#define TT_MS_LANGID_UPPER_SORBIAN_GERMANY             0x042E
+#define TT_MS_LANGID_LOWER_SORBIAN_GERMANY             0x082E
+#define TT_MS_LANGID_MACEDONIAN_MACEDONIA              0x042F
+#define TT_MS_LANGID_SETSWANA_SOUTH_AFRICA             0x0432
+#define TT_MS_LANGID_ISIXHOSA_SOUTH_AFRICA             0x0434
+#define TT_MS_LANGID_ISIZULU_SOUTH_AFRICA              0x0435
+#define TT_MS_LANGID_AFRIKAANS_SOUTH_AFRICA            0x0436
+#define TT_MS_LANGID_GEORGIAN_GEORGIA                  0x0437
+#define TT_MS_LANGID_FAEROESE_FAEROE_ISLANDS           0x0438
+#define TT_MS_LANGID_HINDI_INDIA                       0x0439
+#define TT_MS_LANGID_MALTESE_MALTA                     0x043A
+#define TT_MS_LANGID_SAMI_NORTHERN_NORWAY              0x043B
+#define TT_MS_LANGID_SAMI_NORTHERN_SWEDEN              0x083B
+#define TT_MS_LANGID_SAMI_NORTHERN_FINLAND             0x0C3B
+#define TT_MS_LANGID_SAMI_LULE_NORWAY                  0x103B
+#define TT_MS_LANGID_SAMI_LULE_SWEDEN                  0x143B
+#define TT_MS_LANGID_SAMI_SOUTHERN_NORWAY              0x183B
+#define TT_MS_LANGID_SAMI_SOUTHERN_SWEDEN              0x1C3B
+#define TT_MS_LANGID_SAMI_SKOLT_FINLAND                0x203B
+#define TT_MS_LANGID_SAMI_INARI_FINLAND                0x243B
+#define TT_MS_LANGID_IRISH_IRELAND                     0x083C
+#define TT_MS_LANGID_MALAY_MALAYSIA                    0x043E
+#define TT_MS_LANGID_MALAY_BRUNEI_DARUSSALAM           0x083E
+#define TT_MS_LANGID_KAZAKH_KAZAKHSTAN                 0x043F
+#define TT_MS_LANGID_KYRGYZ_KYRGYZSTAN /* Cyrillic */  0x0440
+#define TT_MS_LANGID_KISWAHILI_KENYA                   0x0441
+#define TT_MS_LANGID_TURKMEN_TURKMENISTAN              0x0442
+#define TT_MS_LANGID_UZBEK_UZBEKISTAN_LATIN            0x0443
+#define TT_MS_LANGID_UZBEK_UZBEKISTAN_CYRILLIC         0x0843
+#define TT_MS_LANGID_TATAR_RUSSIA                      0x0444
+#define TT_MS_LANGID_BENGALI_INDIA                     0x0445
+#define TT_MS_LANGID_BENGALI_BANGLADESH                0x0845
+#define TT_MS_LANGID_PUNJABI_INDIA                     0x0446
+#define TT_MS_LANGID_GUJARATI_INDIA                    0x0447
+#define TT_MS_LANGID_ODIA_INDIA                        0x0448
+#define TT_MS_LANGID_TAMIL_INDIA                       0x0449
+#define TT_MS_LANGID_TELUGU_INDIA                      0x044A
+#define TT_MS_LANGID_KANNADA_INDIA                     0x044B
+#define TT_MS_LANGID_MALAYALAM_INDIA                   0x044C
+#define TT_MS_LANGID_ASSAMESE_INDIA                    0x044D
+#define TT_MS_LANGID_MARATHI_INDIA                     0x044E
+#define TT_MS_LANGID_SANSKRIT_INDIA                    0x044F
+#define TT_MS_LANGID_MONGOLIAN_MONGOLIA /* Cyrillic */ 0x0450
+#define TT_MS_LANGID_MONGOLIAN_PRC                     0x0850
+#define TT_MS_LANGID_TIBETAN_PRC                       0x0451
+#define TT_MS_LANGID_WELSH_UNITED_KINGDOM              0x0452
+#define TT_MS_LANGID_KHMER_CAMBODIA                    0x0453
+#define TT_MS_LANGID_LAO_LAOS                          0x0454
+#define TT_MS_LANGID_GALICIAN_GALICIAN                 0x0456
+#define TT_MS_LANGID_KONKANI_INDIA                     0x0457
+#define TT_MS_LANGID_SYRIAC_SYRIA                      0x045A
+#define TT_MS_LANGID_SINHALA_SRI_LANKA                 0x045B
+#define TT_MS_LANGID_INUKTITUT_CANADA                  0x045D
+#define TT_MS_LANGID_INUKTITUT_CANADA_LATIN            0x085D
+#define TT_MS_LANGID_AMHARIC_ETHIOPIA                  0x045E
+#define TT_MS_LANGID_TAMAZIGHT_ALGERIA                 0x085F
+#define TT_MS_LANGID_NEPALI_NEPAL                      0x0461
+#define TT_MS_LANGID_FRISIAN_NETHERLANDS               0x0462
+#define TT_MS_LANGID_PASHTO_AFGHANISTAN                0x0463
+#define TT_MS_LANGID_FILIPINO_PHILIPPINES              0x0464
+#define TT_MS_LANGID_DHIVEHI_MALDIVES                  0x0465
+#define TT_MS_LANGID_HAUSA_NIGERIA                     0x0468
+#define TT_MS_LANGID_YORUBA_NIGERIA                    0x046A
+#define TT_MS_LANGID_QUECHUA_BOLIVIA                   0x046B
+#define TT_MS_LANGID_QUECHUA_ECUADOR                   0x086B
+#define TT_MS_LANGID_QUECHUA_PERU                      0x0C6B
+#define TT_MS_LANGID_SESOTHO_SA_LEBOA_SOUTH_AFRICA     0x046C
+#define TT_MS_LANGID_BASHKIR_RUSSIA                    0x046D
+#define TT_MS_LANGID_LUXEMBOURGISH_LUXEMBOURG          0x046E
+#define TT_MS_LANGID_GREENLANDIC_GREENLAND             0x046F
+#define TT_MS_LANGID_IGBO_NIGERIA                      0x0470
+#define TT_MS_LANGID_YI_PRC                            0x0478
+#define TT_MS_LANGID_MAPUDUNGUN_CHILE                  0x047A
+#define TT_MS_LANGID_MOHAWK_MOHAWK                     0x047C
+#define TT_MS_LANGID_BRETON_FRANCE                     0x047E
+#define TT_MS_LANGID_UIGHUR_PRC                        0x0480
+#define TT_MS_LANGID_MAORI_NEW_ZEALAND                 0x0481
+#define TT_MS_LANGID_OCCITAN_FRANCE                    0x0482
+#define TT_MS_LANGID_CORSICAN_FRANCE                   0x0483
+#define TT_MS_LANGID_ALSATIAN_FRANCE                   0x0484
+#define TT_MS_LANGID_YAKUT_RUSSIA                      0x0485
+#define TT_MS_LANGID_KICHE_GUATEMALA                   0x0486
+#define TT_MS_LANGID_KINYARWANDA_RWANDA                0x0487
+#define TT_MS_LANGID_WOLOF_SENEGAL                     0x0488
+#define TT_MS_LANGID_DARI_AFGHANISTAN                  0x048C
+
    + +

    Possible values of the language identifier field in the name records of the SFNT ‘name’ table if the ‘platform’ identifier code is TT_PLATFORM_MICROSOFT. These values are also used as return values for function FT_Get_CMap_Language_ID.

    +

    The canonical source for Microsoft's IDs is

    +

    https://docs.microsoft.com/en-us/windows/desktop/Intl/language-identifier-constants-and-strings ,

    +

    however, we only provide macros for language identifiers present in the OpenType specification: Microsoft has abandoned the concept of LCIDs (language code identifiers), and format 1 of the ‘name’ table provides a better mechanism for languages not covered here.

    +

    More legacy values not listed in the reference can be found in the FT_TRUETYPE_IDS_H header file.

    +
    + +

    TT_NAME_ID_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
    #define TT_NAME_ID_COPYRIGHT              0
+#define TT_NAME_ID_FONT_FAMILY            1
+#define TT_NAME_ID_FONT_SUBFAMILY         2
+#define TT_NAME_ID_UNIQUE_ID              3
+#define TT_NAME_ID_FULL_NAME              4
+#define TT_NAME_ID_VERSION_STRING         5
+#define TT_NAME_ID_PS_NAME                6
+#define TT_NAME_ID_TRADEMARK              7
+
+  /* the following values are from the OpenType spec */
+#define TT_NAME_ID_MANUFACTURER           8
+#define TT_NAME_ID_DESIGNER               9
+#define TT_NAME_ID_DESCRIPTION            10
+#define TT_NAME_ID_VENDOR_URL             11
+#define TT_NAME_ID_DESIGNER_URL           12
+#define TT_NAME_ID_LICENSE                13
+#define TT_NAME_ID_LICENSE_URL            14
+  /* number 15 is reserved */
+#define TT_NAME_ID_TYPOGRAPHIC_FAMILY     16
+#define TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY  17
+#define TT_NAME_ID_MAC_FULL_NAME          18
+
+  /* The following code is new as of 2000-01-21 */
+#define TT_NAME_ID_SAMPLE_TEXT            19
+
+  /* This is new in OpenType 1.3 */
+#define TT_NAME_ID_CID_FINDFONT_NAME      20
+
+  /* This is new in OpenType 1.5 */
+#define TT_NAME_ID_WWS_FAMILY             21
+#define TT_NAME_ID_WWS_SUBFAMILY          22
+
+  /* This is new in OpenType 1.7 */
+#define TT_NAME_ID_LIGHT_BACKGROUND       23
+#define TT_NAME_ID_DARK_BACKGROUND        24
+
+  /* This is new in OpenType 1.8 */
+#define TT_NAME_ID_VARIATIONS_PREFIX      25
+
+  /* these two values are deprecated */
+#define TT_NAME_ID_PREFERRED_FAMILY     TT_NAME_ID_TYPOGRAPHIC_FAMILY
+#define TT_NAME_ID_PREFERRED_SUBFAMILY  TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY
+
    + +

    Possible values of the ‘name’ identifier field in the name records of an SFNT ‘name’ table. These values are platform independent.

    +
    + +

    TT_UCR_XXX

    +

    Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).

    +
      /* ulUnicodeRange1 */
+  /* --------------- */
+
+  /* Bit  0   Basic Latin */
+#define TT_UCR_BASIC_LATIN                     (1L <<  0) /* U+0020-U+007E */
+  /* Bit  1   C1 Controls and Latin-1 Supplement */
+#define TT_UCR_LATIN1_SUPPLEMENT               (1L <<  1) /* U+0080-U+00FF */
+  /* Bit  2   Latin Extended-A */
+#define TT_UCR_LATIN_EXTENDED_A                (1L <<  2) /* U+0100-U+017F */
+  /* Bit  3   Latin Extended-B */
+#define TT_UCR_LATIN_EXTENDED_B                (1L <<  3) /* U+0180-U+024F */
+  /* Bit  4   IPA Extensions                 */
+  /*          Phonetic Extensions            */
+  /*          Phonetic Extensions Supplement */
+#define TT_UCR_IPA_EXTENSIONS                  (1L <<  4) /* U+0250-U+02AF */
+                                                          /* U+1D00-U+1D7F */
+                                                          /* U+1D80-U+1DBF */
+  /* Bit  5   Spacing Modifier Letters */
+  /*          Modifier Tone Letters    */
+#define TT_UCR_SPACING_MODIFIER                (1L <<  5) /* U+02B0-U+02FF */
+                                                          /* U+A700-U+A71F */
+  /* Bit  6   Combining Diacritical Marks            */
+  /*          Combining Diacritical Marks Supplement */
+#define TT_UCR_COMBINING_DIACRITICAL_MARKS     (1L <<  6) /* U+0300-U+036F */
+                                                          /* U+1DC0-U+1DFF */
+  /* Bit  7   Greek and Coptic */
+#define TT_UCR_GREEK                           (1L <<  7) /* U+0370-U+03FF */
+  /* Bit  8   Coptic */
+#define TT_UCR_COPTIC                          (1L <<  8) /* U+2C80-U+2CFF */
+  /* Bit  9   Cyrillic            */
+  /*          Cyrillic Supplement */
+  /*          Cyrillic Extended-A */
+  /*          Cyrillic Extended-B */
+#define TT_UCR_CYRILLIC                        (1L <<  9) /* U+0400-U+04FF */
+                                                          /* U+0500-U+052F */
+                                                          /* U+2DE0-U+2DFF */
+                                                          /* U+A640-U+A69F */
+  /* Bit 10   Armenian */
+#define TT_UCR_ARMENIAN                        (1L << 10) /* U+0530-U+058F */
+  /* Bit 11   Hebrew */
+#define TT_UCR_HEBREW                          (1L << 11) /* U+0590-U+05FF */
+  /* Bit 12   Vai */
+#define TT_UCR_VAI                             (1L << 12) /* U+A500-U+A63F */
+  /* Bit 13   Arabic            */
+  /*          Arabic Supplement */
+#define TT_UCR_ARABIC                          (1L << 13) /* U+0600-U+06FF */
+                                                          /* U+0750-U+077F */
+  /* Bit 14   NKo */
+#define TT_UCR_NKO                             (1L << 14) /* U+07C0-U+07FF */
+  /* Bit 15   Devanagari */
+#define TT_UCR_DEVANAGARI                      (1L << 15) /* U+0900-U+097F */
+  /* Bit 16   Bengali */
+#define TT_UCR_BENGALI                         (1L << 16) /* U+0980-U+09FF */
+  /* Bit 17   Gurmukhi */
+#define TT_UCR_GURMUKHI                        (1L << 17) /* U+0A00-U+0A7F */
+  /* Bit 18   Gujarati */
+#define TT_UCR_GUJARATI                        (1L << 18) /* U+0A80-U+0AFF */
+  /* Bit 19   Oriya */
+#define TT_UCR_ORIYA                           (1L << 19) /* U+0B00-U+0B7F */
+  /* Bit 20   Tamil */
+#define TT_UCR_TAMIL                           (1L << 20) /* U+0B80-U+0BFF */
+  /* Bit 21   Telugu */
+#define TT_UCR_TELUGU                          (1L << 21) /* U+0C00-U+0C7F */
+  /* Bit 22   Kannada */
+#define TT_UCR_KANNADA                         (1L << 22) /* U+0C80-U+0CFF */
+  /* Bit 23   Malayalam */
+#define TT_UCR_MALAYALAM                       (1L << 23) /* U+0D00-U+0D7F */
+  /* Bit 24   Thai */
+#define TT_UCR_THAI                            (1L << 24) /* U+0E00-U+0E7F */
+  /* Bit 25   Lao */
+#define TT_UCR_LAO                             (1L << 25) /* U+0E80-U+0EFF */
+  /* Bit 26   Georgian            */
+  /*          Georgian Supplement */
+#define TT_UCR_GEORGIAN                        (1L << 26) /* U+10A0-U+10FF */
+                                                          /* U+2D00-U+2D2F */
+  /* Bit 27   Balinese */
+#define TT_UCR_BALINESE                        (1L << 27) /* U+1B00-U+1B7F */
+  /* Bit 28   Hangul Jamo */
+#define TT_UCR_HANGUL_JAMO                     (1L << 28) /* U+1100-U+11FF */
+  /* Bit 29   Latin Extended Additional */
+  /*          Latin Extended-C          */
+  /*          Latin Extended-D          */
+#define TT_UCR_LATIN_EXTENDED_ADDITIONAL       (1L << 29) /* U+1E00-U+1EFF */
+                                                          /* U+2C60-U+2C7F */
+                                                          /* U+A720-U+A7FF */
+  /* Bit 30   Greek Extended */
+#define TT_UCR_GREEK_EXTENDED                  (1L << 30) /* U+1F00-U+1FFF */
+  /* Bit 31   General Punctuation      */
+  /*          Supplemental Punctuation */
+#define TT_UCR_GENERAL_PUNCTUATION             (1L << 31) /* U+2000-U+206F */
+                                                          /* U+2E00-U+2E7F */
+
+  /* ulUnicodeRange2 */
+  /* --------------- */
+
+  /* Bit 32   Superscripts And Subscripts */
+#define TT_UCR_SUPERSCRIPTS_SUBSCRIPTS         (1L <<  0) /* U+2070-U+209F */
+  /* Bit 33   Currency Symbols */
+#define TT_UCR_CURRENCY_SYMBOLS                (1L <<  1) /* U+20A0-U+20CF */
+  /* Bit 34   Combining Diacritical Marks For Symbols */
+#define TT_UCR_COMBINING_DIACRITICAL_MARKS_SYMB \
+                                               (1L <<  2) /* U+20D0-U+20FF */
+  /* Bit 35   Letterlike Symbols */
+#define TT_UCR_LETTERLIKE_SYMBOLS              (1L <<  3) /* U+2100-U+214F */
+  /* Bit 36   Number Forms */
+#define TT_UCR_NUMBER_FORMS                    (1L <<  4) /* U+2150-U+218F */
+  /* Bit 37   Arrows                           */
+  /*          Supplemental Arrows-A            */
+  /*          Supplemental Arrows-B            */
+  /*          Miscellaneous Symbols and Arrows */
+#define TT_UCR_ARROWS                          (1L <<  5) /* U+2190-U+21FF */
+                                                          /* U+27F0-U+27FF */
+                                                          /* U+2900-U+297F */
+                                                          /* U+2B00-U+2BFF */
+  /* Bit 38   Mathematical Operators               */
+  /*          Supplemental Mathematical Operators  */
+  /*          Miscellaneous Mathematical Symbols-A */
+  /*          Miscellaneous Mathematical Symbols-B */
+#define TT_UCR_MATHEMATICAL_OPERATORS          (1L <<  6) /* U+2200-U+22FF */
+                                                          /* U+2A00-U+2AFF */
+                                                          /* U+27C0-U+27EF */
+                                                          /* U+2980-U+29FF */
+  /* Bit 39 Miscellaneous Technical */
+#define TT_UCR_MISCELLANEOUS_TECHNICAL         (1L <<  7) /* U+2300-U+23FF */
+  /* Bit 40   Control Pictures */
+#define TT_UCR_CONTROL_PICTURES                (1L <<  8) /* U+2400-U+243F */
+  /* Bit 41   Optical Character Recognition */
+#define TT_UCR_OCR                             (1L <<  9) /* U+2440-U+245F */
+  /* Bit 42   Enclosed Alphanumerics */
+#define TT_UCR_ENCLOSED_ALPHANUMERICS          (1L << 10) /* U+2460-U+24FF */
+  /* Bit 43   Box Drawing */
+#define TT_UCR_BOX_DRAWING                     (1L << 11) /* U+2500-U+257F */
+  /* Bit 44   Block Elements */
+#define TT_UCR_BLOCK_ELEMENTS                  (1L << 12) /* U+2580-U+259F */
+  /* Bit 45   Geometric Shapes */
+#define TT_UCR_GEOMETRIC_SHAPES                (1L << 13) /* U+25A0-U+25FF */
+  /* Bit 46   Miscellaneous Symbols */
+#define TT_UCR_MISCELLANEOUS_SYMBOLS           (1L << 14) /* U+2600-U+26FF */
+  /* Bit 47   Dingbats */
+#define TT_UCR_DINGBATS                        (1L << 15) /* U+2700-U+27BF */
+  /* Bit 48   CJK Symbols and Punctuation */
+#define TT_UCR_CJK_SYMBOLS                     (1L << 16) /* U+3000-U+303F */
+  /* Bit 49   Hiragana */
+#define TT_UCR_HIRAGANA                        (1L << 17) /* U+3040-U+309F */
+  /* Bit 50   Katakana                     */
+  /*          Katakana Phonetic Extensions */
+#define TT_UCR_KATAKANA                        (1L << 18) /* U+30A0-U+30FF */
+                                                          /* U+31F0-U+31FF */
+  /* Bit 51   Bopomofo          */
+  /*          Bopomofo Extended */
+#define TT_UCR_BOPOMOFO                        (1L << 19) /* U+3100-U+312F */
+                                                          /* U+31A0-U+31BF */
+  /* Bit 52   Hangul Compatibility Jamo */
+#define TT_UCR_HANGUL_COMPATIBILITY_JAMO       (1L << 20) /* U+3130-U+318F */
+  /* Bit 53   Phags-Pa */
+#define TT_UCR_CJK_MISC                        (1L << 21) /* U+A840-U+A87F */
+#define TT_UCR_KANBUN  TT_UCR_CJK_MISC /* deprecated */
+#define TT_UCR_PHAGSPA
+  /* Bit 54   Enclosed CJK Letters and Months */
+#define TT_UCR_ENCLOSED_CJK_LETTERS_MONTHS     (1L << 22) /* U+3200-U+32FF */
+  /* Bit 55   CJK Compatibility */
+#define TT_UCR_CJK_COMPATIBILITY               (1L << 23) /* U+3300-U+33FF */
+  /* Bit 56   Hangul Syllables */
+#define TT_UCR_HANGUL                          (1L << 24) /* U+AC00-U+D7A3 */
+  /* Bit 57   High Surrogates              */
+  /*          High Private Use Surrogates  */
+  /*          Low Surrogates               */
+
+  /* According to OpenType specs v.1.3+,   */
+  /* setting bit 57 implies that there is  */
+  /* at least one codepoint beyond the     */
+  /* Basic Multilingual Plane that is      */
+  /* supported by this font.  So it really */
+  /* means >= U+10000.                     */
+#define TT_UCR_SURROGATES                      (1L << 25) /* U+D800-U+DB7F */
+                                                          /* U+DB80-U+DBFF */
+                                                          /* U+DC00-U+DFFF */
+#define TT_UCR_NON_PLANE_0  TT_UCR_SURROGATES
+  /* Bit 58  Phoenician */
+#define TT_UCR_PHOENICIAN                      (1L << 26) /*U+10900-U+1091F*/
+  /* Bit 59   CJK Unified Ideographs             */
+  /*          CJK Radicals Supplement            */
+  /*          Kangxi Radicals                    */
+  /*          Ideographic Description Characters */
+  /*          CJK Unified Ideographs Extension A */
+  /*          CJK Unified Ideographs Extension B */
+  /*          Kanbun                             */
+#define TT_UCR_CJK_UNIFIED_IDEOGRAPHS          (1L << 27) /* U+4E00-U+9FFF */
+                                                          /* U+2E80-U+2EFF */
+                                                          /* U+2F00-U+2FDF */
+                                                          /* U+2FF0-U+2FFF */
+                                                          /* U+3400-U+4DB5 */
+                                                          /*U+20000-U+2A6DF*/
+                                                          /* U+3190-U+319F */
+  /* Bit 60   Private Use */
+#define TT_UCR_PRIVATE_USE                     (1L << 28) /* U+E000-U+F8FF */
+  /* Bit 61   CJK Strokes                             */
+  /*          CJK Compatibility Ideographs            */
+  /*          CJK Compatibility Ideographs Supplement */
+#define TT_UCR_CJK_COMPATIBILITY_IDEOGRAPHS    (1L << 29) /* U+31C0-U+31EF */
+                                                          /* U+F900-U+FAFF */
+                                                          /*U+2F800-U+2FA1F*/
+  /* Bit 62   Alphabetic Presentation Forms */
+#define TT_UCR_ALPHABETIC_PRESENTATION_FORMS   (1L << 30) /* U+FB00-U+FB4F */
+  /* Bit 63   Arabic Presentation Forms-A */
+#define TT_UCR_ARABIC_PRESENTATION_FORMS_A     (1L << 31) /* U+FB50-U+FDFF */
+
+  /* ulUnicodeRange3 */
+  /* --------------- */
+
+  /* Bit 64   Combining Half Marks */
+#define TT_UCR_COMBINING_HALF_MARKS            (1L <<  0) /* U+FE20-U+FE2F */
+  /* Bit 65   Vertical forms          */
+  /*          CJK Compatibility Forms */
+#define TT_UCR_CJK_COMPATIBILITY_FORMS         (1L <<  1) /* U+FE10-U+FE1F */
+                                                          /* U+FE30-U+FE4F */
+  /* Bit 66   Small Form Variants */
+#define TT_UCR_SMALL_FORM_VARIANTS             (1L <<  2) /* U+FE50-U+FE6F */
+  /* Bit 67   Arabic Presentation Forms-B */
+#define TT_UCR_ARABIC_PRESENTATION_FORMS_B     (1L <<  3) /* U+FE70-U+FEFE */
+  /* Bit 68   Halfwidth and Fullwidth Forms */
+#define TT_UCR_HALFWIDTH_FULLWIDTH_FORMS       (1L <<  4) /* U+FF00-U+FFEF */
+  /* Bit 69   Specials */
+#define TT_UCR_SPECIALS                        (1L <<  5) /* U+FFF0-U+FFFD */
+  /* Bit 70   Tibetan */
+#define TT_UCR_TIBETAN                         (1L <<  6) /* U+0F00-U+0FFF */
+  /* Bit 71   Syriac */
+#define TT_UCR_SYRIAC                          (1L <<  7) /* U+0700-U+074F */
+  /* Bit 72   Thaana */
+#define TT_UCR_THAANA                          (1L <<  8) /* U+0780-U+07BF */
+  /* Bit 73   Sinhala */
+#define TT_UCR_SINHALA                         (1L <<  9) /* U+0D80-U+0DFF */
+  /* Bit 74   Myanmar */
+#define TT_UCR_MYANMAR                         (1L << 10) /* U+1000-U+109F */
+  /* Bit 75   Ethiopic            */
+  /*          Ethiopic Supplement */
+  /*          Ethiopic Extended   */
+#define TT_UCR_ETHIOPIC                        (1L << 11) /* U+1200-U+137F */
+                                                          /* U+1380-U+139F */
+                                                          /* U+2D80-U+2DDF */
+  /* Bit 76   Cherokee */
+#define TT_UCR_CHEROKEE                        (1L << 12) /* U+13A0-U+13FF */
+  /* Bit 77   Unified Canadian Aboriginal Syllabics */
+#define TT_UCR_CANADIAN_ABORIGINAL_SYLLABICS   (1L << 13) /* U+1400-U+167F */
+  /* Bit 78   Ogham */
+#define TT_UCR_OGHAM                           (1L << 14) /* U+1680-U+169F */
+  /* Bit 79   Runic */
+#define TT_UCR_RUNIC                           (1L << 15) /* U+16A0-U+16FF */
+  /* Bit 80   Khmer         */
+  /*          Khmer Symbols */
+#define TT_UCR_KHMER                           (1L << 16) /* U+1780-U+17FF */
+                                                          /* U+19E0-U+19FF */
+  /* Bit 81   Mongolian */
+#define TT_UCR_MONGOLIAN                       (1L << 17) /* U+1800-U+18AF */
+  /* Bit 82   Braille Patterns */
+#define TT_UCR_BRAILLE                         (1L << 18) /* U+2800-U+28FF */
+  /* Bit 83   Yi Syllables */
+  /*          Yi Radicals  */
+#define TT_UCR_YI                              (1L << 19) /* U+A000-U+A48F */
+                                                          /* U+A490-U+A4CF */
+  /* Bit 84   Tagalog  */
+  /*          Hanunoo  */
+  /*          Buhid    */
+  /*          Tagbanwa */
+#define TT_UCR_PHILIPPINE                      (1L << 20) /* U+1700-U+171F */
+                                                          /* U+1720-U+173F */
+                                                          /* U+1740-U+175F */
+                                                          /* U+1760-U+177F */
+  /* Bit 85   Old Italic */
+#define TT_UCR_OLD_ITALIC                      (1L << 21) /*U+10300-U+1032F*/
+  /* Bit 86   Gothic */
+#define TT_UCR_GOTHIC                          (1L << 22) /*U+10330-U+1034F*/
+  /* Bit 87   Deseret */
+#define TT_UCR_DESERET                         (1L << 23) /*U+10400-U+1044F*/
+  /* Bit 88   Byzantine Musical Symbols      */
+  /*          Musical Symbols                */
+  /*          Ancient Greek Musical Notation */
+#define TT_UCR_MUSICAL_SYMBOLS                 (1L << 24) /*U+1D000-U+1D0FF*/
+                                                          /*U+1D100-U+1D1FF*/
+                                                          /*U+1D200-U+1D24F*/
+  /* Bit 89   Mathematical Alphanumeric Symbols */
+#define TT_UCR_MATH_ALPHANUMERIC_SYMBOLS       (1L << 25) /*U+1D400-U+1D7FF*/
+  /* Bit 90   Private Use (plane 15) */
+  /*          Private Use (plane 16) */
+#define TT_UCR_PRIVATE_USE_SUPPLEMENTARY       (1L << 26) /*U+F0000-U+FFFFD*/
+                                                        /*U+100000-U+10FFFD*/
+  /* Bit 91   Variation Selectors            */
+  /*          Variation Selectors Supplement */
+#define TT_UCR_VARIATION_SELECTORS             (1L << 27) /* U+FE00-U+FE0F */
+                                                          /*U+E0100-U+E01EF*/
+  /* Bit 92   Tags */
+#define TT_UCR_TAGS                            (1L << 28) /*U+E0000-U+E007F*/
+  /* Bit 93   Limbu */
+#define TT_UCR_LIMBU                           (1L << 29) /* U+1900-U+194F */
+  /* Bit 94   Tai Le */
+#define TT_UCR_TAI_LE                          (1L << 30) /* U+1950-U+197F */
+  /* Bit 95   New Tai Lue */
+#define TT_UCR_NEW_TAI_LUE                     (1L << 31) /* U+1980-U+19DF */
+
+  /* ulUnicodeRange4 */
+  /* --------------- */
+
+  /* Bit 96   Buginese */
+#define TT_UCR_BUGINESE                        (1L <<  0) /* U+1A00-U+1A1F */
+  /* Bit 97   Glagolitic */
+#define TT_UCR_GLAGOLITIC                      (1L <<  1) /* U+2C00-U+2C5F */
+  /* Bit 98   Tifinagh */
+#define TT_UCR_TIFINAGH                        (1L <<  2) /* U+2D30-U+2D7F */
+  /* Bit 99   Yijing Hexagram Symbols */
+#define TT_UCR_YIJING                          (1L <<  3) /* U+4DC0-U+4DFF */
+  /* Bit 100  Syloti Nagri */
+#define TT_UCR_SYLOTI_NAGRI                    (1L <<  4) /* U+A800-U+A82F */
+  /* Bit 101  Linear B Syllabary */
+  /*          Linear B Ideograms */
+  /*          Aegean Numbers     */
+#define TT_UCR_LINEAR_B                        (1L <<  5) /*U+10000-U+1007F*/
+                                                          /*U+10080-U+100FF*/
+                                                          /*U+10100-U+1013F*/
+  /* Bit 102  Ancient Greek Numbers */
+#define TT_UCR_ANCIENT_GREEK_NUMBERS           (1L <<  6) /*U+10140-U+1018F*/
+  /* Bit 103  Ugaritic */
+#define TT_UCR_UGARITIC                        (1L <<  7) /*U+10380-U+1039F*/
+  /* Bit 104  Old Persian */
+#define TT_UCR_OLD_PERSIAN                     (1L <<  8) /*U+103A0-U+103DF*/
+  /* Bit 105  Shavian */
+#define TT_UCR_SHAVIAN                         (1L <<  9) /*U+10450-U+1047F*/
+  /* Bit 106  Osmanya */
+#define TT_UCR_OSMANYA                         (1L << 10) /*U+10480-U+104AF*/
+  /* Bit 107  Cypriot Syllabary */
+#define TT_UCR_CYPRIOT_SYLLABARY               (1L << 11) /*U+10800-U+1083F*/
+  /* Bit 108  Kharoshthi */
+#define TT_UCR_KHAROSHTHI                      (1L << 12) /*U+10A00-U+10A5F*/
+  /* Bit 109  Tai Xuan Jing Symbols */
+#define TT_UCR_TAI_XUAN_JING                   (1L << 13) /*U+1D300-U+1D35F*/
+  /* Bit 110  Cuneiform                         */
+  /*          Cuneiform Numbers and Punctuation */
+#define TT_UCR_CUNEIFORM                       (1L << 14) /*U+12000-U+123FF*/
+                                                          /*U+12400-U+1247F*/
+  /* Bit 111  Counting Rod Numerals */
+#define TT_UCR_COUNTING_ROD_NUMERALS           (1L << 15) /*U+1D360-U+1D37F*/
+  /* Bit 112  Sundanese */
+#define TT_UCR_SUNDANESE                       (1L << 16) /* U+1B80-U+1BBF */
+  /* Bit 113  Lepcha */
+#define TT_UCR_LEPCHA                          (1L << 17) /* U+1C00-U+1C4F */
+  /* Bit 114  Ol Chiki */
+#define TT_UCR_OL_CHIKI                        (1L << 18) /* U+1C50-U+1C7F */
+  /* Bit 115  Saurashtra */
+#define TT_UCR_SAURASHTRA                      (1L << 19) /* U+A880-U+A8DF */
+  /* Bit 116  Kayah Li */
+#define TT_UCR_KAYAH_LI                        (1L << 20) /* U+A900-U+A92F */
+  /* Bit 117  Rejang */
+#define TT_UCR_REJANG                          (1L << 21) /* U+A930-U+A95F */
+  /* Bit 118  Cham */
+#define TT_UCR_CHAM                            (1L << 22) /* U+AA00-U+AA5F */
+  /* Bit 119  Ancient Symbols */
+#define TT_UCR_ANCIENT_SYMBOLS                 (1L << 23) /*U+10190-U+101CF*/
+  /* Bit 120  Phaistos Disc */
+#define TT_UCR_PHAISTOS_DISC                   (1L << 24) /*U+101D0-U+101FF*/
+  /* Bit 121  Carian */
+  /*          Lycian */
+  /*          Lydian */
+#define TT_UCR_OLD_ANATOLIAN                   (1L << 25) /*U+102A0-U+102DF*/
+                                                          /*U+10280-U+1029F*/
+                                                          /*U+10920-U+1093F*/
+  /* Bit 122  Domino Tiles  */
+  /*          Mahjong Tiles */
+#define TT_UCR_GAME_TILES                      (1L << 26) /*U+1F030-U+1F09F*/
+                                                          /*U+1F000-U+1F02F*/
+  /* Bit 123-127 Reserved for process-internal usage */
+
    + +

    Possible bit mask values for the ulUnicodeRangeX fields in an SFNT ‘OS/2’ table.

    +
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    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-tt_driver.html b/modules/freetype2/docs/reference/ft2-tt_driver.html new file mode 100644 index 0000000000..15ee940257 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-tt_driver.html @@ -0,0 +1,1373 @@ + + + + + + + + + + + + + + + + + + + + + The TrueType driver - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Controlling FreeType Modules » The TrueType driver

    +
    +

    The TrueType driver

    +

    Synopsis

    +

    While FreeType's TrueType driver doesn't expose API functions by itself, it is possible to control its behaviour with FT_Property_Set and FT_Property_Get.

    +

    The TrueType driver's module name is ‘truetype’; a single property interpreter-version is available, as documented in the ‘Driver properties’ section.

    +

    To help understand the differences between interpreter versions, we introduce a list of definitions, kindly provided by Greg Hitchcock.

    +

    Bi-Level Rendering

    +

    Monochromatic rendering, exclusively used in the early days of TrueType by both Apple and Microsoft. Microsoft's GDI interface supported hinting of the right-side bearing point, such that the advance width could be non-linear. Most often this was done to achieve some level of glyph symmetry. To enable reasonable performance (e.g., not having to run hinting on all glyphs just to get the widths) there was a bit in the head table indicating if the side bearing was hinted, and additional tables, ‘hdmx’ and ‘LTSH’, to cache hinting widths across multiple sizes and device aspect ratios.

    +

    Font Smoothing

    +

    Microsoft's GDI implementation of anti-aliasing. Not traditional anti-aliasing as the outlines were hinted before the sampling. The widths matched the bi-level rendering.

    +

    ClearType Rendering

    +

    Technique that uses physical subpixels to improve rendering on LCD (and other) displays. Because of the higher resolution, many methods of improving symmetry in glyphs through hinting the right-side bearing were no longer necessary. This lead to what GDI calls ‘natural widths’ ClearType, see http://rastertragedy.com/RTRCh4.htm#Sec21. Since hinting has extra resolution, most non-linearity went away, but it is still possible for hints to change the advance widths in this mode.

    +

    ClearType Compatible Widths

    +

    One of the earliest challenges with ClearType was allowing the implementation in GDI to be selected without requiring all UI and documents to reflow. To address this, a compatible method of rendering ClearType was added where the font hints are executed once to determine the width in bi-level rendering, and then re-run in ClearType, with the difference in widths being absorbed in the font hints for ClearType (mostly in the white space of hints); see http://rastertragedy.com/RTRCh4.htm#Sec20. Somewhat by definition, compatible width ClearType allows for non-linear widths, but only when the bi-level version has non-linear widths.

    +

    ClearType Subpixel Positioning

    +

    One of the nice benefits of ClearType is the ability to more crisply display fractional widths; unfortunately, the GDI model of integer bitmaps did not support this. However, the WPF and Direct Write frameworks do support fractional widths. DWrite calls this ‘natural mode’, not to be confused with GDI's ‘natural widths’. Subpixel positioning, in the current implementation of Direct Write, unfortunately does not support hinted advance widths, see http://rastertragedy.com/RTRCh4.htm#Sec22. Note that the TrueType interpreter fully allows the advance width to be adjusted in this mode, just the DWrite client will ignore those changes.

    +

    ClearType Backward Compatibility

    +

    This is a set of exceptions made in the TrueType interpreter to minimize hinting techniques that were problematic with the extra resolution of ClearType; see http://rastertragedy.com/RTRCh4.htm#Sec1 and https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx. This technique is not to be confused with ClearType compatible widths. ClearType backward compatibility has no direct impact on changing advance widths, but there might be an indirect impact on disabling some deltas. This could be worked around in backward compatibility mode.

    +

    Native ClearType Mode

    +

    (Not to be confused with ‘natural widths’.) This mode removes all the exceptions in the TrueType interpreter when running with ClearType. Any issues on widths would still apply, though.

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    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-type1_tables.html b/modules/freetype2/docs/reference/ft2-type1_tables.html new file mode 100644 index 0000000000..adb6e37850 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-type1_tables.html @@ -0,0 +1,2306 @@ + + + + + + + + + + + + + + + + + + + + + Type 1 Tables - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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    FreeType » Docs » Format-Specific API » Type 1 Tables

    +
    +

    Type 1 Tables

    +

    Synopsis

    +

    This section contains the definition of Type 1-specific tables, including structures related to other PostScript font formats.

    +

    PS_FontInfoRec

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef struct  PS_FontInfoRec_
+  {
+    FT_String*  version;
+    FT_String*  notice;
+    FT_String*  full_name;
+    FT_String*  family_name;
+    FT_String*  weight;
+    FT_Long     italic_angle;
+    FT_Bool     is_fixed_pitch;
+    FT_Short    underline_position;
+    FT_UShort   underline_thickness;
+
+  } PS_FontInfoRec;
+
    + +

    A structure used to model a Type 1 or Type 2 FontInfo dictionary. Note that for Multiple Master fonts, each instance has its own FontInfo dictionary.

    +
    + +

    PS_FontInfo

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef struct PS_FontInfoRec_*  PS_FontInfo;
+
    + +

    A handle to a PS_FontInfoRec structure.

    +
    + +

    PS_PrivateRec

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef struct  PS_PrivateRec_
+  {
+    FT_Int     unique_id;
+    FT_Int     lenIV;
+
+    FT_Byte    num_blue_values;
+    FT_Byte    num_other_blues;
+    FT_Byte    num_family_blues;
+    FT_Byte    num_family_other_blues;
+
+    FT_Short   blue_values[14];
+    FT_Short   other_blues[10];
+
+    FT_Short   family_blues      [14];
+    FT_Short   family_other_blues[10];
+
+    FT_Fixed   blue_scale;
+    FT_Int     blue_shift;
+    FT_Int     blue_fuzz;
+
+    FT_UShort  standard_width[1];
+    FT_UShort  standard_height[1];
+
+    FT_Byte    num_snap_widths;
+    FT_Byte    num_snap_heights;
+    FT_Bool    force_bold;
+    FT_Bool    round_stem_up;
+
+    FT_Short   snap_widths [13];  /* including std width  */
+    FT_Short   snap_heights[13];  /* including std height */
+
+    FT_Fixed   expansion_factor;
+
+    FT_Long    language_group;
+    FT_Long    password;
+
+    FT_Short   min_feature[2];
+
+  } PS_PrivateRec;
+
    + +

    A structure used to model a Type 1 or Type 2 private dictionary. Note that for Multiple Master fonts, each instance has its own Private dictionary.

    +
    + +

    PS_Private

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef struct PS_PrivateRec_*  PS_Private;
+
    + +

    A handle to a PS_PrivateRec structure.

    +
    + +

    CID_FaceDictRec

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef struct  CID_FaceDictRec_
+  {
+    PS_PrivateRec  private_dict;
+
+    FT_UInt        len_buildchar;
+    FT_Fixed       forcebold_threshold;
+    FT_Pos         stroke_width;
+    FT_Fixed       expansion_factor;   /* this is a duplicate of           */
+                                       /* `private_dict->expansion_factor' */
+    FT_Byte        paint_type;
+    FT_Byte        font_type;
+    FT_Matrix      font_matrix;
+    FT_Vector      font_offset;
+
+    FT_UInt        num_subrs;
+    FT_ULong       subrmap_offset;
+    FT_UInt        sd_bytes;
+
+  } CID_FaceDictRec;
+
    + +

    A structure used to represent data in a CID top-level dictionary. In most cases, they are part of the font's ‘/FDArray’ array. Within a CID font file, such (internal) subfont dictionaries are enclosed by ‘%ADOBeginFontDict’ and ‘%ADOEndFontDict’ comments.

    +

    Note that CID_FaceDictRec misses a field for the ‘/FontName’ keyword, specifying the subfont's name (the top-level font name is given by the ‘/CIDFontName’ keyword). This is an oversight, but it doesn't limit the ‘cid’ font module's functionality because FreeType neither needs this entry nor gives access to CID subfonts.

    +
    + +

    CID_FaceDict

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef struct CID_FaceDictRec_*  CID_FaceDict;
+
    + +

    A handle to a CID_FaceDictRec structure.

    +
    + +

    CID_FaceInfoRec

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef struct  CID_FaceInfoRec_
+  {
+    FT_String*      cid_font_name;
+    FT_Fixed        cid_version;
+    FT_Int          cid_font_type;
+
+    FT_String*      registry;
+    FT_String*      ordering;
+    FT_Int          supplement;
+
+    PS_FontInfoRec  font_info;
+    FT_BBox         font_bbox;
+    FT_ULong        uid_base;
+
+    FT_Int          num_xuid;
+    FT_ULong        xuid[16];
+
+    FT_ULong        cidmap_offset;
+    FT_UInt         fd_bytes;
+    FT_UInt         gd_bytes;
+    FT_ULong        cid_count;
+
+    FT_UInt         num_dicts;
+    CID_FaceDict    font_dicts;
+
+    FT_ULong        data_offset;
+
+  } CID_FaceInfoRec;
+
    + +

    A structure used to represent CID Face information.

    +
    + +

    CID_FaceInfo

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef struct CID_FaceInfoRec_*  CID_FaceInfo;
+
    + +

    A handle to a CID_FaceInfoRec structure.

    +
    + +

    FT_Has_PS_Glyph_Names

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      FT_EXPORT( FT_Int )
+  FT_Has_PS_Glyph_Names( FT_Face  face );
+
    + +

    Return true if a given face provides reliable PostScript glyph names. This is similar to using the FT_HAS_GLYPH_NAMES macro, except that certain fonts (mostly TrueType) contain incorrect glyph name tables.

    +

    When this function returns true, the caller is sure that the glyph names returned by FT_Get_Glyph_Name are reliable.

    +

    input

    + + +
    face +

    face handle

    +
    + +

    return

    + +

    Boolean. True if glyph names are reliable.

    +
    + +

    FT_Get_PS_Font_Info

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_PS_Font_Info( FT_Face      face,
+                       PS_FontInfo  afont_info );
+
    + +

    Retrieve the PS_FontInfoRec structure corresponding to a given PostScript font.

    +

    input

    + + +
    face +

    PostScript face handle.

    +
    + +

    output

    + + +
    afont_info +

    A pointer to a PS_FontInfoRec object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    String pointers within the PS_FontInfoRec structure are owned by the face and don't need to be freed by the caller. Missing entries in the font's FontInfo dictionary are represented by NULL pointers.

    +

    The following font formats support this feature: ‘Type 1’, ‘Type 42’, ‘CFF’, ‘CID Type 1’. For other font formats this function returns the FT_Err_Invalid_Argument error code.

    +

    example

    +
      PS_FontInfoRec  font_info;
+
+
+  error = FT_Get_PS_Font_Info( face, &font_info );
+  ...
+
    +
    + +

    FT_Get_PS_Font_Private

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_PS_Font_Private( FT_Face     face,
+                          PS_Private  afont_private );
+
    + +

    Retrieve the PS_PrivateRec structure corresponding to a given PostScript font.

    +

    input

    + + +
    face +

    PostScript face handle.

    +
    + +

    output

    + + +
    afont_private +

    A pointer to a PS_PrivateRec object.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    The string pointers within the PS_PrivateRec structure are owned by the face and don't need to be freed by the caller.

    +

    Only the ‘Type 1’ font format supports this feature. For other font formats this function returns the FT_Err_Invalid_Argument error code.

    +

    example

    +
      PS_PrivateRec  font_private;
+
+
+  error = FT_Get_PS_Font_Private( face, &font_private );
+  ...
+
    +
    + +

    FT_Get_PS_Font_Value

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      FT_EXPORT( FT_Long )
+  FT_Get_PS_Font_Value( FT_Face       face,
+                        PS_Dict_Keys  key,
+                        FT_UInt       idx,
+                        void         *value,
+                        FT_Long       value_len );
+
    + +

    Retrieve the value for the supplied key from a PostScript font.

    +

    input

    + + + + + + +
    face +

    PostScript face handle.

    +
    key +

    An enumeration value representing the dictionary key to retrieve.

    +
    idx +

    For array values, this specifies the index to be returned.

    +
    value +

    A pointer to memory into which to write the value.

    +
    valen_len +

    The size, in bytes, of the memory supplied for the value.

    +
    + +

    output

    + + +
    value +

    The value matching the above key, if it exists.

    +
    + +

    return

    + +

    The amount of memory (in bytes) required to hold the requested value (if it exists, -1 otherwise).

    +

    note

    + +

    The values returned are not pointers into the internal structures of the face, but are ‘fresh’ copies, so that the memory containing them belongs to the calling application. This also enforces the ‘read-only’ nature of these values, i.e., this function cannot be used to manipulate the face.

    +

    value is a void pointer because the values returned can be of various types.

    +

    If either value is NULL or value_len is too small, just the required memory size for the requested entry is returned.

    +

    The idx parameter is used, not only to retrieve elements of, for example, the FontMatrix or FontBBox, but also to retrieve name keys from the CharStrings dictionary, and the charstrings themselves. It is ignored for atomic values.

    +

    PS_DICT_BLUE_SCALE returns a value that is scaled up by 1000. To get the value as in the font stream, you need to divide by 65536000.0 (to remove the FT_Fixed scale, and the x1000 scale).

    +

    IMPORTANT: Only key/value pairs read by the FreeType interpreter can be retrieved. So, for example, PostScript procedures such as NP, ND, and RD are not available. Arbitrary keys are, obviously, not be available either.

    +

    If the font's format is not PostScript-based, this function returns the FT_Err_Invalid_Argument error code.

    +

    since

    + +

    2.4.8

    +
    + +

    T1_Blend_Flags

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef enum  T1_Blend_Flags_
+  {
+    /* required fields in a FontInfo blend dictionary */
+    T1_BLEND_UNDERLINE_POSITION = 0,
+    T1_BLEND_UNDERLINE_THICKNESS,
+    T1_BLEND_ITALIC_ANGLE,
+
+    /* required fields in a Private blend dictionary */
+    T1_BLEND_BLUE_VALUES,
+    T1_BLEND_OTHER_BLUES,
+    T1_BLEND_STANDARD_WIDTH,
+    T1_BLEND_STANDARD_HEIGHT,
+    T1_BLEND_STEM_SNAP_WIDTHS,
+    T1_BLEND_STEM_SNAP_HEIGHTS,
+    T1_BLEND_BLUE_SCALE,
+    T1_BLEND_BLUE_SHIFT,
+    T1_BLEND_FAMILY_BLUES,
+    T1_BLEND_FAMILY_OTHER_BLUES,
+    T1_BLEND_FORCE_BOLD,
+
+    T1_BLEND_MAX    /* do not remove */
+
+  } T1_Blend_Flags;
+
+
+  /* these constants are deprecated; use the corresponding */
+  /* `T1_Blend_Flags` values instead                       */
+#define t1_blend_underline_position   T1_BLEND_UNDERLINE_POSITION
+#define t1_blend_underline_thickness  T1_BLEND_UNDERLINE_THICKNESS
+#define t1_blend_italic_angle         T1_BLEND_ITALIC_ANGLE
+#define t1_blend_blue_values          T1_BLEND_BLUE_VALUES
+#define t1_blend_other_blues          T1_BLEND_OTHER_BLUES
+#define t1_blend_standard_widths      T1_BLEND_STANDARD_WIDTH
+#define t1_blend_standard_height      T1_BLEND_STANDARD_HEIGHT
+#define t1_blend_stem_snap_widths     T1_BLEND_STEM_SNAP_WIDTHS
+#define t1_blend_stem_snap_heights    T1_BLEND_STEM_SNAP_HEIGHTS
+#define t1_blend_blue_scale           T1_BLEND_BLUE_SCALE
+#define t1_blend_blue_shift           T1_BLEND_BLUE_SHIFT
+#define t1_blend_family_blues         T1_BLEND_FAMILY_BLUES
+#define t1_blend_family_other_blues   T1_BLEND_FAMILY_OTHER_BLUES
+#define t1_blend_force_bold           T1_BLEND_FORCE_BOLD
+#define t1_blend_max                  T1_BLEND_MAX
+
    + +

    A set of flags used to indicate which fields are present in a given blend dictionary (font info or private). Used to support Multiple Masters fonts.

    +

    values

    + + + + + + + + + + + + + + + +
    T1_BLEND_UNDERLINE_POSITION + +
    T1_BLEND_UNDERLINE_THICKNESS + +
    T1_BLEND_ITALIC_ANGLE + +
    T1_BLEND_BLUE_VALUES + +
    T1_BLEND_OTHER_BLUES + +
    T1_BLEND_STANDARD_WIDTH + +
    T1_BLEND_STANDARD_HEIGHT + +
    T1_BLEND_STEM_SNAP_WIDTHS + +
    T1_BLEND_STEM_SNAP_HEIGHTS + +
    T1_BLEND_BLUE_SCALE + +
    T1_BLEND_BLUE_SHIFT + +
    T1_BLEND_FAMILY_BLUES + +
    T1_BLEND_FAMILY_OTHER_BLUES + +
    T1_BLEND_FORCE_BOLD + +
    + +
    + +

    T1_EncodingType

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef enum  T1_EncodingType_
+  {
+    T1_ENCODING_TYPE_NONE = 0,
+    T1_ENCODING_TYPE_ARRAY,
+    T1_ENCODING_TYPE_STANDARD,
+    T1_ENCODING_TYPE_ISOLATIN1,
+    T1_ENCODING_TYPE_EXPERT
+
+  } T1_EncodingType;
+
    + +

    An enumeration describing the ‘Encoding’ entry in a Type 1 dictionary.

    +

    values

    + + + + + + +
    T1_ENCODING_TYPE_NONE + +
    T1_ENCODING_TYPE_ARRAY + +
    T1_ENCODING_TYPE_STANDARD + +
    T1_ENCODING_TYPE_ISOLATIN1 + +
    T1_ENCODING_TYPE_EXPERT + +
    + +

    since

    + +

    2.4.8

    +
    + +

    PS_Dict_Keys

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef enum  PS_Dict_Keys_
+  {
+    /* conventionally in the font dictionary */
+    PS_DICT_FONT_TYPE,              /* FT_Byte         */
+    PS_DICT_FONT_MATRIX,            /* FT_Fixed        */
+    PS_DICT_FONT_BBOX,              /* FT_Fixed        */
+    PS_DICT_PAINT_TYPE,             /* FT_Byte         */
+    PS_DICT_FONT_NAME,              /* FT_String*      */
+    PS_DICT_UNIQUE_ID,              /* FT_Int          */
+    PS_DICT_NUM_CHAR_STRINGS,       /* FT_Int          */
+    PS_DICT_CHAR_STRING_KEY,        /* FT_String*      */
+    PS_DICT_CHAR_STRING,            /* FT_String*      */
+    PS_DICT_ENCODING_TYPE,          /* T1_EncodingType */
+    PS_DICT_ENCODING_ENTRY,         /* FT_String*      */
+
+    /* conventionally in the font Private dictionary */
+    PS_DICT_NUM_SUBRS,              /* FT_Int     */
+    PS_DICT_SUBR,                   /* FT_String* */
+    PS_DICT_STD_HW,                 /* FT_UShort  */
+    PS_DICT_STD_VW,                 /* FT_UShort  */
+    PS_DICT_NUM_BLUE_VALUES,        /* FT_Byte    */
+    PS_DICT_BLUE_VALUE,             /* FT_Short   */
+    PS_DICT_BLUE_FUZZ,              /* FT_Int     */
+    PS_DICT_NUM_OTHER_BLUES,        /* FT_Byte    */
+    PS_DICT_OTHER_BLUE,             /* FT_Short   */
+    PS_DICT_NUM_FAMILY_BLUES,       /* FT_Byte    */
+    PS_DICT_FAMILY_BLUE,            /* FT_Short   */
+    PS_DICT_NUM_FAMILY_OTHER_BLUES, /* FT_Byte    */
+    PS_DICT_FAMILY_OTHER_BLUE,      /* FT_Short   */
+    PS_DICT_BLUE_SCALE,             /* FT_Fixed   */
+    PS_DICT_BLUE_SHIFT,             /* FT_Int     */
+    PS_DICT_NUM_STEM_SNAP_H,        /* FT_Byte    */
+    PS_DICT_STEM_SNAP_H,            /* FT_Short   */
+    PS_DICT_NUM_STEM_SNAP_V,        /* FT_Byte    */
+    PS_DICT_STEM_SNAP_V,            /* FT_Short   */
+    PS_DICT_FORCE_BOLD,             /* FT_Bool    */
+    PS_DICT_RND_STEM_UP,            /* FT_Bool    */
+    PS_DICT_MIN_FEATURE,            /* FT_Short   */
+    PS_DICT_LEN_IV,                 /* FT_Int     */
+    PS_DICT_PASSWORD,               /* FT_Long    */
+    PS_DICT_LANGUAGE_GROUP,         /* FT_Long    */
+
+    /* conventionally in the font FontInfo dictionary */
+    PS_DICT_VERSION,                /* FT_String* */
+    PS_DICT_NOTICE,                 /* FT_String* */
+    PS_DICT_FULL_NAME,              /* FT_String* */
+    PS_DICT_FAMILY_NAME,            /* FT_String* */
+    PS_DICT_WEIGHT,                 /* FT_String* */
+    PS_DICT_IS_FIXED_PITCH,         /* FT_Bool    */
+    PS_DICT_UNDERLINE_POSITION,     /* FT_Short   */
+    PS_DICT_UNDERLINE_THICKNESS,    /* FT_UShort  */
+    PS_DICT_FS_TYPE,                /* FT_UShort  */
+    PS_DICT_ITALIC_ANGLE,           /* FT_Long    */
+
+    PS_DICT_MAX = PS_DICT_ITALIC_ANGLE
+
+  } PS_Dict_Keys;
+
    + +

    An enumeration used in calls to FT_Get_PS_Font_Value to identify the Type 1 dictionary entry to retrieve.

    +

    values

    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    PS_DICT_FONT_TYPE + +
    PS_DICT_FONT_MATRIX + +
    PS_DICT_FONT_BBOX + +
    PS_DICT_PAINT_TYPE + +
    PS_DICT_FONT_NAME + +
    PS_DICT_UNIQUE_ID + +
    PS_DICT_NUM_CHAR_STRINGS + +
    PS_DICT_CHAR_STRING_KEY + +
    PS_DICT_CHAR_STRING + +
    PS_DICT_ENCODING_TYPE + +
    PS_DICT_ENCODING_ENTRY + +
    PS_DICT_NUM_SUBRS + +
    PS_DICT_SUBR + +
    PS_DICT_STD_HW + +
    PS_DICT_STD_VW + +
    PS_DICT_NUM_BLUE_VALUES + +
    PS_DICT_BLUE_VALUE + +
    PS_DICT_BLUE_FUZZ + +
    PS_DICT_NUM_OTHER_BLUES + +
    PS_DICT_OTHER_BLUE + +
    PS_DICT_NUM_FAMILY_BLUES + +
    PS_DICT_FAMILY_BLUE + +
    PS_DICT_NUM_FAMILY_OTHER_BLUES + +
    PS_DICT_FAMILY_OTHER_BLUE + +
    PS_DICT_BLUE_SCALE + +
    PS_DICT_BLUE_SHIFT + +
    PS_DICT_NUM_STEM_SNAP_H + +
    PS_DICT_STEM_SNAP_H + +
    PS_DICT_NUM_STEM_SNAP_V + +
    PS_DICT_STEM_SNAP_V + +
    PS_DICT_FORCE_BOLD + +
    PS_DICT_RND_STEM_UP + +
    PS_DICT_MIN_FEATURE + +
    PS_DICT_LEN_IV + +
    PS_DICT_PASSWORD + +
    PS_DICT_LANGUAGE_GROUP + +
    PS_DICT_VERSION + +
    PS_DICT_NOTICE + +
    PS_DICT_FULL_NAME + +
    PS_DICT_FAMILY_NAME + +
    PS_DICT_WEIGHT + +
    PS_DICT_IS_FIXED_PITCH + +
    PS_DICT_UNDERLINE_POSITION + +
    PS_DICT_UNDERLINE_THICKNESS + +
    PS_DICT_FS_TYPE + +
    PS_DICT_ITALIC_ANGLE + +
    + +

    since

    + +

    2.4.8

    +
    + +

    T1_FontInfo

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef PS_FontInfoRec  T1_FontInfo;
+
    + +

    This type is equivalent to PS_FontInfoRec. It is deprecated but kept to maintain source compatibility between various versions of FreeType.

    +
    + +

    T1_Private

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef PS_PrivateRec  T1_Private;
+
    + +

    This type is equivalent to PS_PrivateRec. It is deprecated but kept to maintain source compatibility between various versions of FreeType.

    +
    + +

    CID_FontDict

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef CID_FaceDictRec  CID_FontDict;
+
    + +

    This type is equivalent to CID_FaceDictRec. It is deprecated but kept to maintain source compatibility between various versions of FreeType.

    +
    + +

    CID_Info

    +

    Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).

    +
      typedef CID_FaceInfoRec  CID_Info;
+
    + +

    This type is equivalent to CID_FaceInfoRec. It is deprecated but kept to maintain source compatibility between various versions of FreeType.

    +
    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-user_allocation.html b/modules/freetype2/docs/reference/ft2-user_allocation.html new file mode 100644 index 0000000000..b5c3946e12 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-user_allocation.html @@ -0,0 +1,1357 @@ + + + + + + + + + + + + + + + + + + + + + User allocation - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
    + +
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    + + + +
    +
    +
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    +
    +
    + + + +
    +
    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » General Remarks » User allocation

    +
    +

    User allocation

    +

    Synopsis

    +

    FreeType assumes that structures allocated by the user and passed as arguments are zeroed out except for the actual data. In other words, it is recommended to use calloc (or variants of it) instead of malloc for allocation.

    + + + + + + + +
    +
    +
    + +
    + + + + +
    +
    +
    +
    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/ft2-winfnt_fonts.html b/modules/freetype2/docs/reference/ft2-winfnt_fonts.html new file mode 100644 index 0000000000..600adf4871 --- /dev/null +++ b/modules/freetype2/docs/reference/ft2-winfnt_fonts.html @@ -0,0 +1,1590 @@ + + + + + + + + + + + + + + + + + + + + + Window FNT Files - FreeType-2.13.2 API Reference + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + +
    + +
    + +
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    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Format-Specific API » Window FNT Files

    +
    +

    Window FNT Files

    +

    Synopsis

    +

    This section contains the declaration of Windows FNT-specific functions.

    +

    FT_WinFNT_ID_XXX

    +

    Defined in FT_WINFONTS_H (freetype/ftwinfnt.h).

    +
    #define FT_WinFNT_ID_CP1252    0
+#define FT_WinFNT_ID_DEFAULT   1
+#define FT_WinFNT_ID_SYMBOL    2
+#define FT_WinFNT_ID_MAC      77
+#define FT_WinFNT_ID_CP932   128
+#define FT_WinFNT_ID_CP949   129
+#define FT_WinFNT_ID_CP1361  130
+#define FT_WinFNT_ID_CP936   134
+#define FT_WinFNT_ID_CP950   136
+#define FT_WinFNT_ID_CP1253  161
+#define FT_WinFNT_ID_CP1254  162
+#define FT_WinFNT_ID_CP1258  163
+#define FT_WinFNT_ID_CP1255  177
+#define FT_WinFNT_ID_CP1256  178
+#define FT_WinFNT_ID_CP1257  186
+#define FT_WinFNT_ID_CP1251  204
+#define FT_WinFNT_ID_CP874   222
+#define FT_WinFNT_ID_CP1250  238
+#define FT_WinFNT_ID_OEM     255
+
    + +

    A list of valid values for the charset byte in FT_WinFNT_HeaderRec. Exact mapping tables for the various ‘cpXXXX’ encodings (except for ‘cp1361’) can be found at ‘ftp://ftp.unicode.org/Public/’ in the MAPPINGS/VENDORS/MICSFT/WINDOWS subdirectory. ‘cp1361’ is roughly a superset of MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT.

    +

    values

    + + + + + + + + + + + + + + + + + + + + +
    FT_WinFNT_ID_DEFAULT +

    This is used for font enumeration and font creation as a ‘don't care’ value. Valid font files don't contain this value. When querying for information about the character set of the font that is currently selected into a specified device context, this return value (of the related Windows API) simply denotes failure.

    +
    FT_WinFNT_ID_SYMBOL +

    There is no known mapping table available.

    +
    FT_WinFNT_ID_MAC +

    Mac Roman encoding.

    +
    FT_WinFNT_ID_OEM +

    From Michael Poettgen <michael@poettgen.de>:

    +

    The ‘Windows Font Mapping’ article says that FT_WinFNT_ID_OEM is used for the charset of vector fonts, like modern.fon, roman.fon, and script.fon on Windows.

    +

    The ‘CreateFont’ documentation says: The FT_WinFNT_ID_OEM value specifies a character set that is operating-system dependent.

    +

    The ‘IFIMETRICS’ documentation from the ‘Windows Driver Development Kit’ says: This font supports an OEM-specific character set. The OEM character set is system dependent.

    +

    In general OEM, as opposed to ANSI (i.e., ‘cp1252’), denotes the second default codepage that most international versions of Windows have. It is one of the OEM codepages from

    +

    https://docs.microsoft.com/en-us/windows/desktop/intl/code-page-identifiers ,

    +

    and is used for the ‘DOS boxes’, to support legacy applications. A German Windows version for example usually uses ANSI codepage 1252 and OEM codepage 850.

    +
    FT_WinFNT_ID_CP874 +

    A superset of Thai TIS 620 and ISO 8859-11.

    +
    FT_WinFNT_ID_CP932 +

    A superset of Japanese Shift-JIS (with minor deviations).

    +
    FT_WinFNT_ID_CP936 +

    A superset of simplified Chinese GB 2312-1980 (with different ordering and minor deviations).

    +
    FT_WinFNT_ID_CP949 +

    A superset of Korean Hangul KS C 5601-1987 (with different ordering and minor deviations).

    +
    FT_WinFNT_ID_CP950 +

    A superset of traditional Chinese Big 5 ETen (with different ordering and minor deviations).

    +
    FT_WinFNT_ID_CP1250 +

    A superset of East European ISO 8859-2 (with slightly different ordering).

    +
    FT_WinFNT_ID_CP1251 +

    A superset of Russian ISO 8859-5 (with different ordering).

    +
    FT_WinFNT_ID_CP1252 +

    ANSI encoding. A superset of ISO 8859-1.

    +
    FT_WinFNT_ID_CP1253 +

    A superset of Greek ISO 8859-7 (with minor modifications).

    +
    FT_WinFNT_ID_CP1254 +

    A superset of Turkish ISO 8859-9.

    +
    FT_WinFNT_ID_CP1255 +

    A superset of Hebrew ISO 8859-8 (with some modifications).

    +
    FT_WinFNT_ID_CP1256 +

    A superset of Arabic ISO 8859-6 (with different ordering).

    +
    FT_WinFNT_ID_CP1257 +

    A superset of Baltic ISO 8859-13 (with some deviations).

    +
    FT_WinFNT_ID_CP1258 +

    For Vietnamese. This encoding doesn't cover all necessary characters.

    +
    FT_WinFNT_ID_CP1361 +

    Korean (Johab).

    +
    + +
    + +

    FT_WinFNT_HeaderRec

    +

    Defined in FT_WINFONTS_H (freetype/ftwinfnt.h).

    +
      typedef struct  FT_WinFNT_HeaderRec_
+  {
+    FT_UShort  version;
+    FT_ULong   file_size;
+    FT_Byte    copyright[60];
+    FT_UShort  file_type;
+    FT_UShort  nominal_point_size;
+    FT_UShort  vertical_resolution;
+    FT_UShort  horizontal_resolution;
+    FT_UShort  ascent;
+    FT_UShort  internal_leading;
+    FT_UShort  external_leading;
+    FT_Byte    italic;
+    FT_Byte    underline;
+    FT_Byte    strike_out;
+    FT_UShort  weight;
+    FT_Byte    charset;
+    FT_UShort  pixel_width;
+    FT_UShort  pixel_height;
+    FT_Byte    pitch_and_family;
+    FT_UShort  avg_width;
+    FT_UShort  max_width;
+    FT_Byte    first_char;
+    FT_Byte    last_char;
+    FT_Byte    default_char;
+    FT_Byte    break_char;
+    FT_UShort  bytes_per_row;
+    FT_ULong   device_offset;
+    FT_ULong   face_name_offset;
+    FT_ULong   bits_pointer;
+    FT_ULong   bits_offset;
+    FT_Byte    reserved;
+    FT_ULong   flags;
+    FT_UShort  A_space;
+    FT_UShort  B_space;
+    FT_UShort  C_space;
+    FT_UShort  color_table_offset;
+    FT_ULong   reserved1[4];
+
+  } FT_WinFNT_HeaderRec;
+
    + +

    Windows FNT Header info.

    +
    + +

    FT_WinFNT_Header

    +

    Defined in FT_WINFONTS_H (freetype/ftwinfnt.h).

    +
      typedef struct FT_WinFNT_HeaderRec_*  FT_WinFNT_Header;
+
    + +

    A handle to an FT_WinFNT_HeaderRec structure.

    +
    + +

    FT_Get_WinFNT_Header

    +

    Defined in FT_WINFONTS_H (freetype/ftwinfnt.h).

    +
      FT_EXPORT( FT_Error )
+  FT_Get_WinFNT_Header( FT_Face               face,
+                        FT_WinFNT_HeaderRec  *aheader );
+
    + +

    Retrieve a Windows FNT font info header.

    +

    input

    + + +
    face +

    A handle to the input face.

    +
    + +

    output

    + + +
    aheader +

    The WinFNT header.

    +
    + +

    return

    + +

    FreeType error code. 0 means success.

    +

    note

    + +

    This function only works with Windows FNT faces, returning an error otherwise.

    +
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    + +
    + +
    + +
    + +
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    + + + +
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    + + + + +
    +
    +
    + + + +
    +
    +
    + + +
    +
    +
    + + +
    +
    + + + +

    FreeType » Docs » Table of Contents

    +
    +

    FreeType-2.13.2 API Reference

    +

    Table of Contents

    +

    General Remarks

    + + + + +
    Preamble +

    What FreeType is and isn't

    +
    FreeType's header inclusion scheme +

    How client applications should include FreeType header files.

    +
    User allocation +

    How client applications should allocate FreeType data structures.

    +
    +

    Core API

    + + + + + + + + + + +
    Basic Data Types +

    The basic data types defined by the library.

    +
    Library Setup +

    Functions to start and end the usage of the FreeType library.

    +
    Face Creation +

    Functions to manage fonts.

    +
    Font Testing Macros +

    Macros to test various properties of fonts.

    +
    Sizing and Scaling +

    Functions to manage font sizes.

    +
    Glyph Retrieval +

    Functions to manage glyphs.

    +
    Character Mapping +

    Functions to manage character-to-glyph maps.

    +
    Information Retrieval +

    Functions to retrieve font and glyph information.

    +
    Other API Data +

    Other structures, enumerations, and macros.

    +
    +

    Extended API

    + + + + + + + + +
    Unicode Variation Sequences +

    The FreeType 2 interface to Unicode Variation Sequences (UVS), using the SFNT cmap format 14.

    +
    Glyph Color Management +

    Retrieving and manipulating OpenType's ‘CPAL’ table data.

    +
    Glyph Layer Management +

    Retrieving and manipulating OpenType's ‘COLR’ table data.

    +
    Glyph Management +

    Generic interface to manage individual glyph data.

    +
    Mac Specific Interface +

    Only available on the Macintosh.

    +
    Size Management +

    Managing multiple sizes per face.

    +
    Header File Macros +

    Macro definitions used to #include specific header files.

    +
    +

    Format-Specific API

    + + + + + + + + + + + + +
    Multiple Masters +

    How to manage Multiple Masters fonts.

    +
    TrueType Tables +

    TrueType-specific table types and functions.

    +
    Type 1 Tables +

    Type 1-specific font tables.

    +
    SFNT Names +

    Access the names embedded in TrueType and OpenType files.

    +
    BDF and PCF Files +

    BDF and PCF specific API.

    +
    CID Fonts +

    CID-keyed font-specific API.

    +
    PFR Fonts +

    PFR/TrueDoc-specific API.

    +
    Window FNT Files +

    Windows FNT-specific API.

    +
    OpenType SVG Fonts +

    OT-SVG API between FreeType and an external SVG rendering library.

    +
    Font Formats +

    Getting the font format.

    +
    Gasp Table +

    Retrieving TrueType ‘gasp’ table entries.

    +
    +

    Controlling FreeType Modules

    + + + + + + + + + + +
    The auto-hinter +

    Controlling the auto-hinting module.

    +
    The CFF driver +

    Controlling the CFF driver module.

    +
    The Type 1 and CID drivers +

    Controlling the Type 1 and CID driver modules.

    +
    The TrueType driver +

    Controlling the TrueType driver module.

    +
    The PCF driver +

    Controlling the PCF driver module.

    +
    The SVG driver +

    Controlling the external rendering of OT-SVG glyphs.

    +
    Driver properties +

    Controlling driver modules.

    +
    Parameter Tags +

    Macros for driver property and font loading parameter tags.

    +
    Subpixel Rendering +

    API to control subpixel rendering.

    +
    +

    Cache Sub-System

    + + +
    Cache Sub-System +

    How to cache face, size, and glyph data with FreeType 2.

    +
    +

    Support API

    + + + + + + + + + + + + + + +
    Computations +

    Crunching fixed numbers and vectors.

    +
    List Processing +

    Simple management of lists.

    +
    Outline Processing +

    Functions to create, transform, and render vectorial glyph images.

    +
    Quick retrieval of advance values +

    Retrieve horizontal and vertical advance values without processing glyph outlines, if possible.

    +
    Bitmap Handling +

    Handling FT_Bitmap objects.

    +
    Scanline Converter +

    How vectorial outlines are converted into bitmaps and pixmaps.

    +
    Glyph Stroker +

    Generating bordered and stroked glyphs.

    +
    System Interface +

    How FreeType manages memory and i/o.

    +
    Module Management +

    How to add, upgrade, remove, and control modules from FreeType.

    +
    GZIP Streams +

    Using gzip-compressed font files.

    +
    LZW Streams +

    Using LZW-compressed font files.

    +
    BZIP2 Streams +

    Using bzip2-compressed font files.

    +
    External Debugging APIs +

    Public APIs to control the FT_DEBUG_LOGGING macro.

    +
    +

    Error Codes

    + + + +
    Error Enumerations +

    How to handle errors and error strings.

    +
    Error Code Values +

    All possible error codes returned by FreeType functions.

    +
    +

    Miscellaneous

    + + + + + +
    TrueTypeGX/AAT Validation +

    An API to validate TrueTypeGX/AAT tables.

    +
    Incremental Loading +

    Custom Glyph Loading.

    +
    The TrueType Engine +

    TrueType bytecode support.

    +
    OpenType Validation +

    An API to validate OpenType tables.

    +
    +

    Global Index

    +
    +
    generated on Fri Aug 25 18:54:11 2023 UTC
    + + + + + + + +
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    +
    + +
    + + + + +
    +
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    + + + + + + + + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/javascripts/extra.js b/modules/freetype2/docs/reference/javascripts/extra.js new file mode 100644 index 0000000000..00f1670890 --- /dev/null +++ b/modules/freetype2/docs/reference/javascripts/extra.js @@ -0,0 +1,54 @@ +/* +Internal link topbar offest adjust Javascript +Code provided by @makshh on GitHub + +Bug report on material-mkdocs + https://github.com/squidfunk/mkdocs-material/issues/791 +*/ + +// Offset top helper +function offsetY(elem) { + if(!elem) elem = this; + var y = elem.offsetTop; + while (elem = elem.offsetParent) { + y += elem.offsetTop; + } + return y; +} + +// If a link on the same page is clicked, calculate the +// correct offset and scroll to that part of the page. +// +var links = document.getElementsByTagName('a'); +for(var i = 0; i < links.length; i++) { + links[i].onclick = function (event) { + if (this.pathname == window.location.pathname && + this.protocol == window.location.protocol && + this.host == window.location.host) { + event.preventDefault(); + if(this.hash.substr(1)){ + var o = document.getElementById(this.hash.substr(1)); + var sT = offsetY(o) - document.getElementsByClassName('md-header')[0].clientHeight; + window.location.hash = this.hash; + window.scrollTo(0, sT); + } + } + } +} + +// Slugify supplied text +function slugify(text){ + text = text.toLowerCase(); + text = text.replace(" ", "-"); + return text; +} + +// If there is a hash in the url, slugify it +// and replace +if(window.location.hash) { + // Fragment exists + slug = slugify(window.location.hash); + history.replaceState(undefined, undefined, slug) + //window.location.hash = slug; + document.location.replace(window.location.href); +} diff --git a/modules/freetype2/docs/reference/search/search_index.json b/modules/freetype2/docs/reference/search/search_index.json new file mode 100644 index 0000000000..bdbc3e48ef --- /dev/null +++ b/modules/freetype2/docs/reference/search/search_index.json @@ -0,0 +1 @@ +{"config":{"indexing":"full","lang":["en"],"min_search_length":3,"prebuild_index":false,"separator":"[\\s\\-]+"},"docs":[{"location":"index.html","text":"FreeType \u00bb Docs \u00bb Table of Contents FreeType-2.13.2 API Reference \u00b6 Table of Contents \u00b6 General Remarks \u00b6 Preamble What FreeType is and isn't FreeType's header inclusion scheme How client applications should include FreeType header files. User allocation How client applications should allocate FreeType data structures. Core API \u00b6 Basic Data Types The basic data types defined by the library. Library Setup Functions to start and end the usage of the FreeType library. Face Creation Functions to manage fonts. Font Testing Macros Macros to test various properties of fonts. Sizing and Scaling Functions to manage font sizes. Glyph Retrieval Functions to manage glyphs. Character Mapping Functions to manage character-to-glyph maps. Information Retrieval Functions to retrieve font and glyph information. Other API Data Other structures, enumerations, and macros. Extended API \u00b6 Unicode Variation Sequences The FreeType 2 interface to Unicode Variation Sequences (UVS), using the SFNT cmap format 14. Glyph Color Management Retrieving and manipulating OpenType's \u2018CPAL\u2019 table data. Glyph Layer Management Retrieving and manipulating OpenType's \u2018COLR\u2019 table data. Glyph Management Generic interface to manage individual glyph data. Mac Specific Interface Only available on the Macintosh. Size Management Managing multiple sizes per face. Header File Macros Macro definitions used to #include specific header files. Format-Specific API \u00b6 Multiple Masters How to manage Multiple Masters fonts. TrueType Tables TrueType-specific table types and functions. Type 1 Tables Type 1-specific font tables. SFNT Names Access the names embedded in TrueType and OpenType files. BDF and PCF Files BDF and PCF specific API. CID Fonts CID-keyed font-specific API. PFR Fonts PFR/TrueDoc-specific API. Window FNT Files Windows FNT-specific API. OpenType SVG Fonts OT-SVG API between FreeType and an external SVG rendering library. Font Formats Getting the font format. Gasp Table Retrieving TrueType \u2018gasp\u2019 table entries. Controlling FreeType Modules \u00b6 The auto-hinter Controlling the auto-hinting module. The CFF driver Controlling the CFF driver module. The Type 1 and CID drivers Controlling the Type 1 and CID driver modules. The TrueType driver Controlling the TrueType driver module. The PCF driver Controlling the PCF driver module. The SVG driver Controlling the external rendering of OT-SVG glyphs. Driver properties Controlling driver modules. Parameter Tags Macros for driver property and font loading parameter tags. Subpixel Rendering API to control subpixel rendering. Cache Sub-System \u00b6 Cache Sub-System How to cache face, size, and glyph data with FreeType 2. Support API \u00b6 Computations Crunching fixed numbers and vectors. List Processing Simple management of lists. Outline Processing Functions to create, transform, and render vectorial glyph images. Quick retrieval of advance values Retrieve horizontal and vertical advance values without processing glyph outlines, if possible. Bitmap Handling Handling FT_Bitmap objects. Scanline Converter How vectorial outlines are converted into bitmaps and pixmaps. Glyph Stroker Generating bordered and stroked glyphs. System Interface How FreeType manages memory and i/o. Module Management How to add, upgrade, remove, and control modules from FreeType. GZIP Streams Using gzip-compressed font files. LZW Streams Using LZW-compressed font files. BZIP2 Streams Using bzip2-compressed font files. External Debugging APIs Public APIs to control the FT_DEBUG_LOGGING macro. Error Codes \u00b6 Error Enumerations How to handle errors and error strings. Error Code Values All possible error codes returned by FreeType functions. Miscellaneous \u00b6 TrueTypeGX/AAT Validation An API to validate TrueTypeGX/AAT tables. Incremental Loading Custom Glyph Loading. The TrueType Engine TrueType bytecode support. OpenType Validation An API to validate OpenType tables. 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FT_Bytes \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef const FT_Byte * FT_Bytes ; A typedef for constant memory areas. FT_Char \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef signed char FT_Char ; A simple typedef for the signed char type. FT_Int \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef signed int FT_Int ; A typedef for the int type. FT_UInt \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef unsigned int FT_UInt ; A typedef for the unsigned int type. FT_Int16 \u00b6 typedef signed short FT_Int16 ; A typedef for a 16bit signed integer type. FT_UInt16 \u00b6 typedef unsigned short FT_UInt16 ; A typedef for a 16bit unsigned integer type. FT_Int32 \u00b6 typedef signed XXX FT_Int32 ; A typedef for a 32bit signed integer type. The size depends on the configuration. FT_UInt32 \u00b6 typedef unsigned XXX FT_UInt32 ; FT_Int64 \u00b6 typedef signed XXX FT_Int64 ; FT_UInt64 \u00b6 typedef unsigned XXX FT_UInt64 ; FT_Short \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef signed short FT_Short ; A typedef for signed short. FT_UShort \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef unsigned short FT_UShort ; A typedef for unsigned short. FT_Long \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef signed long FT_Long ; A typedef for signed long. FT_ULong \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef unsigned long FT_ULong ; A typedef for unsigned long. FT_Bool \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef unsigned char FT_Bool ; A typedef of unsigned char, used for simple booleans. As usual, values 1 and 0 represent true and false, respectively. FT_Offset \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef size_t FT_Offset ; This is equivalent to the ANSI C size_t type, i.e., the largest unsigned integer type used to express a file size or position, or a memory block size. FT_PtrDist \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef ft_ptrdiff_t FT_PtrDist ; This is equivalent to the ANSI C ptrdiff_t type, i.e., the largest signed integer type used to express the distance between two pointers. FT_String \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef char FT_String ; A simple typedef for the char type, usually used for strings. FT_Tag \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef FT_UInt32 FT_Tag ; A typedef for 32-bit tags (as used in the SFNT format). FT_Error \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef int FT_Error ; The FreeType error code type. A value of 0 is always interpreted as a successful operation. FT_Fixed \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef signed long FT_Fixed ; This type is used to store 16.16 fixed-point values, like scaling values or matrix coefficients. FT_Pointer \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef void * FT_Pointer ; A simple typedef for a typeless pointer. FT_Pos \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef signed long FT_Pos ; The type FT_Pos is used to store vectorial coordinates. Depending on the context, these can represent distances in integer font units, or 16.16, or 26.6 fixed-point pixel coordinates. FT_Vector \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Vector_ { FT_Pos x; FT_Pos y; } FT_Vector ; A simple structure used to store a 2D vector; coordinates are of the FT_Pos type. fields x The horizontal coordinate. y The vertical coordinate. FT_BBox \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_BBox_ { FT_Pos xMin, yMin; FT_Pos xMax, yMax; } FT_BBox ; A structure used to hold an outline's bounding box, i.e., the coordinates of its extrema in the horizontal and vertical directions. fields xMin The horizontal minimum (left-most). yMin The vertical minimum (bottom-most). xMax The horizontal maximum (right-most). yMax The vertical maximum (top-most). note The bounding box is specified with the coordinates of the lower left and the upper right corner. In PostScript, those values are often called (llx,lly) and (urx,ury), respectively. If yMin is negative, this value gives the glyph's descender. Otherwise, the glyph doesn't descend below the baseline. Similarly, if ymax is positive, this value gives the glyph's ascender. xMin gives the horizontal distance from the glyph's origin to the left edge of the glyph's bounding box. If xMin is negative, the glyph extends to the left of the origin. FT_Matrix \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_Matrix_ { FT_Fixed xx, xy; FT_Fixed yx, yy; } FT_Matrix ; A simple structure used to store a 2x2 matrix. Coefficients are in 16.16 fixed-point format. The computation performed is: x' = x*xx + y*xy y' = x*yx + y*yy fields xx Matrix coefficient. xy Matrix coefficient. yx Matrix coefficient. yy Matrix coefficient. FT_FWord \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef signed short FT_FWord ; /* distance in FUnits */ A signed 16-bit integer used to store a distance in original font units. FT_UFWord \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef unsigned short FT_UFWord ; /* unsigned distance */ An unsigned 16-bit integer used to store a distance in original font units. FT_F2Dot14 \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef signed short FT_F2Dot14 ; A signed 2.14 fixed-point type used for unit vectors. FT_UnitVector \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_UnitVector_ { FT_F2Dot14 x; FT_F2Dot14 y; } FT_UnitVector ; A simple structure used to store a 2D vector unit vector. Uses FT_F2Dot14 types. fields x Horizontal coordinate. y Vertical coordinate. FT_F26Dot6 \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef signed long FT_F26Dot6 ; A signed 26.6 fixed-point type used for vectorial pixel coordinates. FT_Data \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_Data_ { const FT_Byte * pointer; FT_UInt length; } FT_Data ; Read-only binary data represented as a pointer and a length. fields pointer The data. length The length of the data in bytes. FT_MAKE_TAG \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). # define FT_MAKE_TAG ( _x1, _x2, _x3, _x4 ) \\ ( ( FT_STATIC_BYTE_CAST( FT_Tag , _x1 ) << 24 ) | \\ ( FT_STATIC_BYTE_CAST( FT_Tag , _x2 ) << 16 ) | \\ ( FT_STATIC_BYTE_CAST( FT_Tag , _x3 ) << 8 ) | \\ FT_STATIC_BYTE_CAST( FT_Tag , _x4 ) ) This macro converts four-letter tags that are used to label TrueType tables into an FT_Tag type, to be used within FreeType. note The produced values must be 32-bit integers. Don't redefine this macro. FT_Generic \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_Generic_ { void * data; FT_Generic_Finalizer finalizer; } FT_Generic ; Client applications often need to associate their own data to a variety of FreeType core objects. For example, a text layout API might want to associate a glyph cache to a given size object. Some FreeType object contains a generic field, of type FT_Generic , which usage is left to client applications and font servers. It can be used to store a pointer to client-specific data, as well as the address of a \u2018finalizer\u2019 function, which will be called by FreeType when the object is destroyed (for example, the previous client example would put the address of the glyph cache destructor in the finalizer field). fields data A typeless pointer to any client-specified data. This field is completely ignored by the FreeType library. finalizer A pointer to a \u2018generic finalizer\u2019 function, which will be called when the object is destroyed. If this field is set to NULL , no code will be called. FT_Generic_Finalizer \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef void (* FT_Generic_Finalizer )( void * object ); Describe a function used to destroy the \u2018client\u2019 data of any FreeType object. See the description of the FT_Generic type for details of usage. input The address of the FreeType object that is under finalization. Its client data is accessed through its generic field. FT_Bitmap \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Bitmap_ { unsigned int rows; unsigned int width; int pitch; unsigned char * buffer; unsigned short num_grays; unsigned char pixel_mode; unsigned char palette_mode; void * palette; } FT_Bitmap ; A structure used to describe a bitmap or pixmap to the raster. Note that we now manage pixmaps of various depths through the pixel_mode field. fields rows The number of bitmap rows. width The number of pixels in bitmap row. pitch The pitch's absolute value is the number of bytes taken by one bitmap row, including padding. However, the pitch is positive when the bitmap has a \u2018down\u2019 flow, and negative when it has an \u2018up\u2019 flow. In all cases, the pitch is an offset to add to a bitmap pointer in order to go down one row. Note that \u2018padding\u2019 means the alignment of a bitmap to a byte border, and FreeType functions normally align to the smallest possible integer value. For the B/W rasterizer, pitch is always an even number. To change the pitch of a bitmap (say, to make it a multiple of 4), use FT_Bitmap_Convert . Alternatively, you might use callback functions to directly render to the application's surface; see the file example2.cpp in the tutorial for a demonstration. buffer A typeless pointer to the bitmap buffer. This value should be aligned on 32-bit boundaries in most cases. num_grays This field is only used with FT_PIXEL_MODE_GRAY ; it gives the number of gray levels used in the bitmap. pixel_mode The pixel mode, i.e., how pixel bits are stored. See FT_Pixel_Mode for possible values. palette_mode This field is intended for paletted pixel modes; it indicates how the palette is stored. Not used currently. palette A typeless pointer to the bitmap palette; this field is intended for paletted pixel modes. Not used currently. note width and rows refer to the physical size of the bitmap, not the logical one. For example, if FT_Pixel_Mode is set to FT_PIXEL_MODE_LCD , the logical width is a just a third of the physical one. FT_Pixel_Mode \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef enum FT_Pixel_Mode_ { FT_PIXEL_MODE_NONE = 0, FT_PIXEL_MODE_MONO , FT_PIXEL_MODE_GRAY , FT_PIXEL_MODE_GRAY2 , FT_PIXEL_MODE_GRAY4 , FT_PIXEL_MODE_LCD , FT_PIXEL_MODE_LCD_V , FT_PIXEL_MODE_BGRA , FT_PIXEL_MODE_MAX /* do not remove */ } FT_Pixel_Mode ; /* these constants are deprecated; use the corresponding ` FT_Pixel_Mode ` */ /* values instead. */ # define ft_pixel_mode_none FT_PIXEL_MODE_NONE # define ft_pixel_mode_mono FT_PIXEL_MODE_MONO # define ft_pixel_mode_grays FT_PIXEL_MODE_GRAY # define ft_pixel_mode_pal2 FT_PIXEL_MODE_GRAY2 # define ft_pixel_mode_pal4 FT_PIXEL_MODE_GRAY4 An enumeration type used to describe the format of pixels in a given bitmap. Note that additional formats may be added in the future. values FT_PIXEL_MODE_NONE Value 0 is reserved. FT_PIXEL_MODE_MONO A monochrome bitmap, using 1 bit per pixel. Note that pixels are stored in most-significant order (MSB), which means that the left-most pixel in a byte has value 128. FT_PIXEL_MODE_GRAY An 8-bit bitmap, generally used to represent anti-aliased glyph images. Each pixel is stored in one byte. Note that the number of \u2018gray\u2019 levels is stored in the num_grays field of the FT_Bitmap structure (it generally is 256). FT_PIXEL_MODE_GRAY2 A 2-bit per pixel bitmap, used to represent embedded anti-aliased bitmaps in font files according to the OpenType specification. We haven't found a single font using this format, however. FT_PIXEL_MODE_GRAY4 A 4-bit per pixel bitmap, representing embedded anti-aliased bitmaps in font files according to the OpenType specification. We haven't found a single font using this format, however. FT_PIXEL_MODE_LCD An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on LCD displays; the bitmap is three times wider than the original glyph image. See also FT_RENDER_MODE_LCD . FT_PIXEL_MODE_LCD_V An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on rotated LCD displays; the bitmap is three times taller than the original glyph image. See also FT_RENDER_MODE_LCD_V . FT_PIXEL_MODE_BGRA [Since 2.5] An image with four 8-bit channels per pixel, representing a color image (such as emoticons) with alpha channel. For each pixel, the format is BGRA, which means, the blue channel comes first in memory. The color channels are pre-multiplied and in the sRGB colorspace. For example, full red at half-translucent opacity will be represented as \u201800,00,80,80\u2019, not \u201800,00,FF,80\u2019. See also FT_LOAD_COLOR . FT_Glyph_Format \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef enum FT_Glyph_Format_ { FT_IMAGE_TAG ( FT_GLYPH_FORMAT_NONE , 0, 0, 0, 0 ), FT_IMAGE_TAG ( FT_GLYPH_FORMAT_COMPOSITE , 'c', 'o', 'm', 'p' ), FT_IMAGE_TAG ( FT_GLYPH_FORMAT_BITMAP , 'b', 'i', 't', 's' ), FT_IMAGE_TAG ( FT_GLYPH_FORMAT_OUTLINE , 'o', 'u', 't', 'l' ), FT_IMAGE_TAG ( FT_GLYPH_FORMAT_PLOTTER , 'p', 'l', 'o', 't' ), FT_IMAGE_TAG ( FT_GLYPH_FORMAT_SVG , 'S', 'V', 'G', ' ' ) } FT_Glyph_Format ; /* these constants are deprecated; use the corresponding */ /* ` FT_Glyph_Format ` values instead. */ # define ft_glyph_format_none FT_GLYPH_FORMAT_NONE # define ft_glyph_format_composite FT_GLYPH_FORMAT_COMPOSITE # define ft_glyph_format_bitmap FT_GLYPH_FORMAT_BITMAP # define ft_glyph_format_outline FT_GLYPH_FORMAT_OUTLINE # define ft_glyph_format_plotter FT_GLYPH_FORMAT_PLOTTER An enumeration type used to describe the format of a given glyph image. Note that this version of FreeType only supports two image formats, even though future font drivers will be able to register their own format. values FT_GLYPH_FORMAT_NONE The value 0 is reserved. FT_GLYPH_FORMAT_COMPOSITE The glyph image is a composite of several other images. This format is only used with FT_LOAD_NO_RECURSE , and is used to report compound glyphs (like accented characters). FT_GLYPH_FORMAT_BITMAP The glyph image is a bitmap, and can be described as an FT_Bitmap . You generally need to access the bitmap field of the FT_GlyphSlotRec structure to read it. FT_GLYPH_FORMAT_OUTLINE The glyph image is a vectorial outline made of line segments and Bezier arcs; it can be described as an FT_Outline ; you generally want to access the outline field of the FT_GlyphSlotRec structure to read it. FT_GLYPH_FORMAT_PLOTTER The glyph image is a vectorial path with no inside and outside contours. Some Type 1 fonts, like those in the Hershey family, contain glyphs in this format. These are described as FT_Outline , but FreeType isn't currently capable of rendering them correctly. FT_GLYPH_FORMAT_SVG [Since 2.12] The glyph is represented by an SVG document in the \u2018SVG \u2019 table. FT_IMAGE_TAG \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). # ifndef FT_IMAGE_TAG # define FT_IMAGE_TAG ( value, _x1, _x2, _x3, _x4 ) \\ value = ( ( FT_STATIC_BYTE_CAST( unsigned long , _x1 ) << 24 ) | \\ ( FT_STATIC_BYTE_CAST( unsigned long , _x2 ) << 16 ) | \\ ( FT_STATIC_BYTE_CAST( unsigned long , _x3 ) << 8 ) | \\ FT_STATIC_BYTE_CAST( unsigned long , _x4 ) ) # endif /* FT_IMAGE_TAG */ This macro converts four-letter tags to an unsigned long type. note Since many 16-bit compilers don't like 32-bit enumerations, you should redefine this macro in case of problems to something like this: #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value to get a simple enumeration without assigning special numbers.","title":"Basic Data Types"},{"location":"ft2-basic_types.html#basic-data-types","text":"","title":"Basic Data Types"},{"location":"ft2-basic_types.html#synopsis","text":"This section contains the basic data types defined by FreeType 2, ranging from simple scalar types to bitmap descriptors. 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Depending on the context, these can represent distances in integer font units, or 16.16, or 26.6 fixed-point pixel coordinates.","title":"FT_Pos"},{"location":"ft2-basic_types.html#ft_vector","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Vector_ { FT_Pos x; FT_Pos y; } FT_Vector ; A simple structure used to store a 2D vector; coordinates are of the FT_Pos type.","title":"FT_Vector"},{"location":"ft2-basic_types.html#ft_bbox","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_BBox_ { FT_Pos xMin, yMin; FT_Pos xMax, yMax; } FT_BBox ; A structure used to hold an outline's bounding box, i.e., the coordinates of its extrema in the horizontal and vertical directions.","title":"FT_BBox"},{"location":"ft2-basic_types.html#ft_matrix","text":"Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_Matrix_ { FT_Fixed xx, xy; FT_Fixed yx, yy; } FT_Matrix ; A simple structure used to store a 2x2 matrix. Coefficients are in 16.16 fixed-point format. 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Note that we now manage pixmaps of various depths through the pixel_mode field.","title":"FT_Bitmap"},{"location":"ft2-basic_types.html#ft_pixel_mode","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef enum FT_Pixel_Mode_ { FT_PIXEL_MODE_NONE = 0, FT_PIXEL_MODE_MONO , FT_PIXEL_MODE_GRAY , FT_PIXEL_MODE_GRAY2 , FT_PIXEL_MODE_GRAY4 , FT_PIXEL_MODE_LCD , FT_PIXEL_MODE_LCD_V , FT_PIXEL_MODE_BGRA , FT_PIXEL_MODE_MAX /* do not remove */ } FT_Pixel_Mode ; /* these constants are deprecated; use the corresponding ` FT_Pixel_Mode ` */ /* values instead. */ # define ft_pixel_mode_none FT_PIXEL_MODE_NONE # define ft_pixel_mode_mono FT_PIXEL_MODE_MONO # define ft_pixel_mode_grays FT_PIXEL_MODE_GRAY # define ft_pixel_mode_pal2 FT_PIXEL_MODE_GRAY2 # define ft_pixel_mode_pal4 FT_PIXEL_MODE_GRAY4 An enumeration type used to describe the format of pixels in a given bitmap. 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BDF_PropertyType \u00b6 Defined in FT_BDF_H (freetype/ftbdf.h). typedef enum BDF_PropertyType_ { BDF_PROPERTY_TYPE_NONE = 0, BDF_PROPERTY_TYPE_ATOM = 1, BDF_PROPERTY_TYPE_INTEGER = 2, BDF_PROPERTY_TYPE_CARDINAL = 3 } BDF_PropertyType ; A list of BDF property types. values BDF_PROPERTY_TYPE_NONE Value 0 is used to indicate a missing property. BDF_PROPERTY_TYPE_ATOM Property is a string atom. BDF_PROPERTY_TYPE_INTEGER Property is a 32-bit signed integer. BDF_PROPERTY_TYPE_CARDINAL Property is a 32-bit unsigned integer. BDF_Property \u00b6 Defined in FT_BDF_H (freetype/ftbdf.h). typedef struct BDF_PropertyRec_* BDF_Property ; A handle to a BDF_PropertyRec structure to model a given BDF/PCF property. BDF_PropertyRec \u00b6 Defined in FT_BDF_H (freetype/ftbdf.h). typedef struct BDF_PropertyRec_ { BDF_PropertyType type; union { const char * atom; FT_Int32 integer; FT_UInt32 cardinal; } u; } BDF_PropertyRec ; This structure models a given BDF/PCF property. fields type The property type. u.atom The atom string, if type is BDF_PROPERTY_TYPE_ATOM . May be NULL , indicating an empty string. u.integer A signed integer, if type is BDF_PROPERTY_TYPE_INTEGER . u.cardinal An unsigned integer, if type is BDF_PROPERTY_TYPE_CARDINAL . FT_Get_BDF_Charset_ID \u00b6 Defined in FT_BDF_H (freetype/ftbdf.h). FT_EXPORT( FT_Error ) FT_Get_BDF_Charset_ID ( FT_Face face, const char * *acharset_encoding, const char * *acharset_registry ); Retrieve a BDF font character set identity, according to the BDF specification. input face A handle to the input face. output acharset_encoding Charset encoding, as a C string, owned by the face. acharset_registry Charset registry, as a C string, owned by the face. return FreeType error code. 0 means success. note This function only works with BDF faces, returning an error otherwise. FT_Get_BDF_Property \u00b6 Defined in FT_BDF_H (freetype/ftbdf.h). FT_EXPORT( FT_Error ) FT_Get_BDF_Property ( FT_Face face, const char * prop_name, BDF_PropertyRec *aproperty ); Retrieve a BDF property from a BDF or PCF font file. input face A handle to the input face. name The property name. output aproperty The property. return FreeType error code. 0 means success. note This function works with BDF and PCF fonts. It returns an error otherwise. It also returns an error if the property is not in the font. A \u2018property\u2019 is a either key-value pair within the STARTPROPERTIES \u2026 ENDPROPERTIES block of a BDF font or a key-value pair from the info->props array within a FontRec structure of a PCF font. Integer properties are always stored as \u2018signed\u2019 within PCF fonts; consequently, BDF_PROPERTY_TYPE_CARDINAL is a possible return value for BDF fonts only. In case of error, aproperty->type is always set to BDF_PROPERTY_TYPE_NONE .","title":"BDF and PCF Files"},{"location":"ft2-bdf_fonts.html#bdf-and-pcf-files","text":"","title":"BDF and PCF Files"},{"location":"ft2-bdf_fonts.html#synopsis","text":"This section contains the declaration of functions specific to BDF and PCF fonts.","title":"Synopsis"},{"location":"ft2-bdf_fonts.html#bdf_propertytype","text":"Defined in FT_BDF_H (freetype/ftbdf.h). typedef enum BDF_PropertyType_ { BDF_PROPERTY_TYPE_NONE = 0, BDF_PROPERTY_TYPE_ATOM = 1, BDF_PROPERTY_TYPE_INTEGER = 2, BDF_PROPERTY_TYPE_CARDINAL = 3 } BDF_PropertyType ; A list of BDF property types.","title":"BDF_PropertyType"},{"location":"ft2-bdf_fonts.html#bdf_property","text":"Defined in FT_BDF_H (freetype/ftbdf.h). typedef struct BDF_PropertyRec_* BDF_Property ; A handle to a BDF_PropertyRec structure to model a given BDF/PCF property.","title":"BDF_Property"},{"location":"ft2-bdf_fonts.html#bdf_propertyrec","text":"Defined in FT_BDF_H (freetype/ftbdf.h). typedef struct BDF_PropertyRec_ { BDF_PropertyType type; union { const char * atom; FT_Int32 integer; FT_UInt32 cardinal; } u; } BDF_PropertyRec ; This structure models a given BDF/PCF property.","title":"BDF_PropertyRec"},{"location":"ft2-bdf_fonts.html#ft_get_bdf_charset_id","text":"Defined in FT_BDF_H (freetype/ftbdf.h). FT_EXPORT( FT_Error ) FT_Get_BDF_Charset_ID ( FT_Face face, const char * *acharset_encoding, const char * *acharset_registry ); Retrieve a BDF font character set identity, according to the BDF specification.","title":"FT_Get_BDF_Charset_ID"},{"location":"ft2-bdf_fonts.html#ft_get_bdf_property","text":"Defined in FT_BDF_H (freetype/ftbdf.h). FT_EXPORT( FT_Error ) FT_Get_BDF_Property ( FT_Face face, const char * prop_name, BDF_PropertyRec *aproperty ); Retrieve a BDF property from a BDF or PCF font file.","title":"FT_Get_BDF_Property"},{"location":"ft2-bitmap_handling.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb Bitmap Handling Bitmap Handling \u00b6 Synopsis \u00b6 This section contains functions for handling FT_Bitmap objects, automatically adjusting the target's bitmap buffer size as needed. Note that none of the functions changes the bitmap's \u2018flow\u2019 (as indicated by the sign of the pitch field in FT_Bitmap ). To set the flow, assign an appropriate positive or negative value to the pitch field of the target FT_Bitmap object after calling FT_Bitmap_Init but before calling any of the other functions described here. FT_Bitmap_Init \u00b6 Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( void ) FT_Bitmap_Init ( FT_Bitmap *abitmap ); /* deprecated */ FT_EXPORT( void ) FT_Bitmap_New( FT_Bitmap *abitmap ); Initialize a pointer to an FT_Bitmap structure. inout abitmap A pointer to the bitmap structure. note A deprecated name for the same function is FT_Bitmap_New . FT_Bitmap_Copy \u00b6 Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Copy ( FT_Library library, const FT_Bitmap *source, FT_Bitmap *target ); Copy a bitmap into another one. input library A handle to a library object. source A handle to the source bitmap. output target A handle to the target bitmap. return FreeType error code. 0 means success. note source->buffer and target->buffer must neither be equal nor overlap. FT_Bitmap_Embolden \u00b6 Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Embolden ( FT_Library library, FT_Bitmap * bitmap, FT_Pos xStrength, FT_Pos yStrength ); Embolden a bitmap. The new bitmap will be about xStrength pixels wider and yStrength pixels higher. The left and bottom borders are kept unchanged. input library A handle to a library object. xStrength How strong the glyph is emboldened horizontally. Expressed in 26.6 pixel format. yStrength How strong the glyph is emboldened vertically. Expressed in 26.6 pixel format. inout bitmap A handle to the target bitmap. return FreeType error code. 0 means success. note The current implementation restricts xStrength to be less than or equal to 8 if bitmap is of pixel_mode FT_PIXEL_MODE_MONO . If you want to embolden the bitmap owned by a FT_GlyphSlotRec , you should call FT_GlyphSlot_Own_Bitmap on the slot first. Bitmaps in FT_PIXEL_MODE_GRAY2 and FT_PIXEL_MODE_GRAY @ format are converted to FT_PIXEL_MODE_GRAY format (i.e., 8bpp). FT_Bitmap_Convert \u00b6 Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Convert ( FT_Library library, const FT_Bitmap *source, FT_Bitmap *target, FT_Int alignment ); Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp to a bitmap object with depth 8bpp, making the number of used bytes per line (a.k.a. the \u2018pitch\u2019) a multiple of alignment . input library A handle to a library object. source The source bitmap. alignment The pitch of the bitmap is a multiple of this argument. Common values are 1, 2, or 4. output target The target bitmap. return FreeType error code. 0 means success. note It is possible to call FT_Bitmap_Convert multiple times without calling FT_Bitmap_Done (the memory is simply reallocated). Use FT_Bitmap_Done to finally remove the bitmap object. The library argument is taken to have access to FreeType's memory handling functions. source->buffer and target->buffer must neither be equal nor overlap. FT_Bitmap_Blend \u00b6 Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Blend ( FT_Library library, const FT_Bitmap * source, const FT_Vector source_offset, FT_Bitmap * target, FT_Vector *atarget_offset, FT_Color color ); Blend a bitmap onto another bitmap, using a given color. input library A handle to a library object. source The source bitmap, which can have any FT_Pixel_Mode format. source_offset The offset vector to the upper left corner of the source bitmap in 26.6 pixel format. It should represent an integer offset; the function will set the lowest six bits to zero to enforce that. color The color used to draw source onto target . inout target A handle to an FT_Bitmap object. It should be either initialized as empty with a call to FT_Bitmap_Init , or it should be of type FT_PIXEL_MODE_BGRA . atarget_offset The offset vector to the upper left corner of the target bitmap in 26.6 pixel format. It should represent an integer offset; the function will set the lowest six bits to zero to enforce that. return FreeType error code. 0 means success. note This function doesn't perform clipping. The bitmap in target gets allocated or reallocated as needed; the vector atarget_offset is updated accordingly. In case of allocation or reallocation, the bitmap's pitch is set to 4 * width . Both source and target must have the same bitmap flow (as indicated by the sign of the pitch field). source->buffer and target->buffer must neither be equal nor overlap. since 2.10 FT_GlyphSlot_Own_Bitmap \u00b6 Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_GlyphSlot_Own_Bitmap ( FT_GlyphSlot slot ); Make sure that a glyph slot owns slot->bitmap . input slot The glyph slot. return FreeType error code. 0 means success. note This function is to be used in combination with FT_Bitmap_Embolden . FT_Bitmap_Done \u00b6 Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Done ( FT_Library library, FT_Bitmap *bitmap ); Destroy a bitmap object initialized with FT_Bitmap_Init . input library A handle to a library object. bitmap The bitmap object to be freed. return FreeType error code. 0 means success. note The library argument is taken to have access to FreeType's memory handling functions.","title":"Bitmap Handling"},{"location":"ft2-bitmap_handling.html#bitmap-handling","text":"","title":"Bitmap Handling"},{"location":"ft2-bitmap_handling.html#synopsis","text":"This section contains functions for handling FT_Bitmap objects, automatically adjusting the target's bitmap buffer size as needed. Note that none of the functions changes the bitmap's \u2018flow\u2019 (as indicated by the sign of the pitch field in FT_Bitmap ). To set the flow, assign an appropriate positive or negative value to the pitch field of the target FT_Bitmap object after calling FT_Bitmap_Init but before calling any of the other functions described here.","title":"Synopsis"},{"location":"ft2-bitmap_handling.html#ft_bitmap_init","text":"Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( void ) FT_Bitmap_Init ( FT_Bitmap *abitmap ); /* deprecated */ FT_EXPORT( void ) FT_Bitmap_New( FT_Bitmap *abitmap ); Initialize a pointer to an FT_Bitmap structure.","title":"FT_Bitmap_Init"},{"location":"ft2-bitmap_handling.html#ft_bitmap_copy","text":"Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Copy ( FT_Library library, const FT_Bitmap *source, FT_Bitmap *target ); Copy a bitmap into another one.","title":"FT_Bitmap_Copy"},{"location":"ft2-bitmap_handling.html#ft_bitmap_embolden","text":"Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Embolden ( FT_Library library, FT_Bitmap * bitmap, FT_Pos xStrength, FT_Pos yStrength ); Embolden a bitmap. The new bitmap will be about xStrength pixels wider and yStrength pixels higher. The left and bottom borders are kept unchanged.","title":"FT_Bitmap_Embolden"},{"location":"ft2-bitmap_handling.html#ft_bitmap_convert","text":"Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Convert ( FT_Library library, const FT_Bitmap *source, FT_Bitmap *target, FT_Int alignment ); Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp to a bitmap object with depth 8bpp, making the number of used bytes per line (a.k.a. the \u2018pitch\u2019) a multiple of alignment .","title":"FT_Bitmap_Convert"},{"location":"ft2-bitmap_handling.html#ft_bitmap_blend","text":"Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Blend ( FT_Library library, const FT_Bitmap * source, const FT_Vector source_offset, FT_Bitmap * target, FT_Vector *atarget_offset, FT_Color color ); Blend a bitmap onto another bitmap, using a given color.","title":"FT_Bitmap_Blend"},{"location":"ft2-bitmap_handling.html#ft_glyphslot_own_bitmap","text":"Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_GlyphSlot_Own_Bitmap ( FT_GlyphSlot slot ); Make sure that a glyph slot owns slot->bitmap .","title":"FT_GlyphSlot_Own_Bitmap"},{"location":"ft2-bitmap_handling.html#ft_bitmap_done","text":"Defined in FT_BITMAP_H (freetype/ftbitmap.h). FT_EXPORT( FT_Error ) FT_Bitmap_Done ( FT_Library library, FT_Bitmap *bitmap ); Destroy a bitmap object initialized with FT_Bitmap_Init .","title":"FT_Bitmap_Done"},{"location":"ft2-bzip2.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb BZIP2 Streams BZIP2 Streams \u00b6 Synopsis \u00b6 In certain builds of the library, bzip2 compression recognition is automatically handled when calling FT_New_Face or FT_Open_Face . This means that if no font driver is capable of handling the raw compressed file, the library will try to open a bzip2 compressed stream from it and re-open the face with it. The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance. This section contains the declaration of Bzip2-specific functions. FT_Stream_OpenBzip2 \u00b6 Defined in FT_BZIP2_H (freetype/ftbzip2.h). FT_EXPORT( FT_Error ) FT_Stream_OpenBzip2 ( FT_Stream stream, FT_Stream source ); Open a new stream to parse bzip2-compressed font files. This is mainly used to support the compressed *.pcf.bz2 fonts that come with XFree86. input stream The target embedding stream. source The source stream. return FreeType error code. 0 means success. note The source stream must be opened before calling this function. Calling the internal function FT_Stream_Close on the new stream will not call FT_Stream_Close on the source stream. None of the stream objects will be released to the heap. This function may return FT_Err_Unimplemented_Feature if your build of FreeType was not compiled with bzip2 support.","title":"BZIP2 Streams"},{"location":"ft2-bzip2.html#bzip2-streams","text":"","title":"BZIP2 Streams"},{"location":"ft2-bzip2.html#synopsis","text":"In certain builds of the library, bzip2 compression recognition is automatically handled when calling FT_New_Face or FT_Open_Face . This means that if no font driver is capable of handling the raw compressed file, the library will try to open a bzip2 compressed stream from it and re-open the face with it. The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance. This section contains the declaration of Bzip2-specific functions.","title":"Synopsis"},{"location":"ft2-bzip2.html#ft_stream_openbzip2","text":"Defined in FT_BZIP2_H (freetype/ftbzip2.h). FT_EXPORT( FT_Error ) FT_Stream_OpenBzip2 ( FT_Stream stream, FT_Stream source ); Open a new stream to parse bzip2-compressed font files. This is mainly used to support the compressed *.pcf.bz2 fonts that come with XFree86.","title":"FT_Stream_OpenBzip2"},{"location":"ft2-cache_subsystem.html","text":"FreeType \u00bb Docs \u00bb Cache Sub-System \u00bb Cache Sub-System Cache Sub-System \u00b6 Synopsis \u00b6 This section describes the FreeType 2 cache sub-system, which is used to limit the number of concurrently opened FT_Face and FT_Size objects, as well as caching information like character maps and glyph images while limiting their maximum memory usage. Note that all types and functions begin with the FTC_ prefix rather than the usual FT_ prefix in the rest of FreeType. The cache is highly portable and, thus, doesn't know anything about the fonts installed on your system, or how to access them. Therefore, it requires the following. FTC_FaceID , an arbitrary non-zero value that uniquely identifies available or installed font faces, has to be provided to the cache by the client. Note that the cache only stores and compares these values and doesn't try to interpret them in any way, but they have to be persistent on the client side. FTC_Face_Requester , a method to convert an FTC_FaceID into a new FT_Face object when necessary, has to be provided to the cache by the client. The FT_Face object is completely managed by the cache, including its termination through FT_Done_Face . To monitor termination of face objects, the finalizer callback in the generic field of the FT_Face object can be used, which might also be used to store the FTC_FaceID of the face. Clients are free to map face IDs to anything useful. The most simple usage is, for example, to associate them to a {pathname,face_index} pair that is then used by FTC_Face_Requester to call FT_New_Face . However, more complex schemes are also possible. Note that for the cache to work correctly, the face ID values must be persistent , which means that the contents they point to should not change at runtime, or that their value should not become invalid. If this is unavoidable (e.g., when a font is uninstalled at runtime), you should call FTC_Manager_RemoveFaceID as soon as possible to let the cache get rid of any references to the old FTC_FaceID it may keep internally. Failure to do so will lead to incorrect behaviour or even crashes in FTC_Face_Requester . To use the cache, start with calling FTC_Manager_New to create a new FTC_Manager object, which models a single cache instance. You can then look up FT_Face and FT_Size objects with FTC_Manager_LookupFace and FTC_Manager_LookupSize , respectively, and use them in any FreeType work stream. You can also cache other FreeType objects as follows. If you want to use the charmap caching, call FTC_CMapCache_New , then later use FTC_CMapCache_Lookup to perform the equivalent of FT_Get_Char_Index , only much faster. If you want to use the FT_Glyph caching, call FTC_ImageCache_New , then later use FTC_ImageCache_Lookup to retrieve the corresponding FT_Glyph objects from the cache. If you need lots of small bitmaps, it is much more memory-efficient to call FTC_SBitCache_New followed by FTC_SBitCache_Lookup . This returns FTC_SBitRec structures, which are used to store small bitmaps directly. (A small bitmap is one whose metrics and dimensions all fit into 8-bit integers). FTC_Manager \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ManagerRec_* FTC_Manager ; This object corresponds to one instance of the cache-subsystem. It is used to cache one or more FT_Face objects, along with corresponding FT_Size objects. The manager intentionally limits the total number of opened FT_Face and FT_Size objects to control memory usage. See the max_faces and max_sizes parameters of FTC_Manager_New . The manager is also used to cache \u2018nodes\u2019 of various types while limiting their total memory usage. All limitations are enforced by keeping lists of managed objects in most-recently-used order, and flushing old nodes to make room for new ones. FTC_FaceID \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef FT_Pointer FTC_FaceID ; An opaque pointer type that is used to identity face objects. The contents of such objects is application-dependent. These pointers are typically used to point to a user-defined structure containing a font file path, and face index. note Never use NULL as a valid FTC_FaceID . Face IDs are passed by the client to the cache manager that calls, when needed, the FTC_Face_Requester to translate them into new FT_Face objects. If the content of a given face ID changes at runtime, or if the value becomes invalid (e.g., when uninstalling a font), you should immediately call FTC_Manager_RemoveFaceID before any other cache function. Failure to do so will result in incorrect behaviour or even memory leaks and crashes. FTC_Face_Requester \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef FT_Error (* FTC_Face_Requester )( FTC_FaceID face_id, FT_Library library, FT_Pointer req_data, FT_Face * aface ); A callback function provided by client applications. It is used by the cache manager to translate a given FTC_FaceID into a new valid FT_Face object, on demand. input face_id The face ID to resolve. library A handle to a FreeType library object. req_data Application-provided request data (see note below). output aface A new FT_Face handle. return FreeType error code. 0 means success. note The third parameter req_data is the same as the one passed by the client when FTC_Manager_New is called. The face requester should not perform funny things on the returned face object, like creating a new FT_Size for it, or setting a transformation through FT_Set_Transform ! FTC_Manager_New \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_Manager_New ( FT_Library library, FT_UInt max_faces, FT_UInt max_sizes, FT_ULong max_bytes, FTC_Face_Requester requester, FT_Pointer req_data, FTC_Manager *amanager ); Create a new cache manager. input library The parent FreeType library handle to use. max_faces Maximum number of opened FT_Face objects managed by this cache instance. Use 0 for defaults. max_sizes Maximum number of opened FT_Size objects managed by this cache instance. Use 0 for defaults. max_bytes Maximum number of bytes to use for cached data nodes. Use 0 for defaults. Note that this value does not account for managed FT_Face and FT_Size objects. requester An application-provided callback used to translate face IDs into real FT_Face objects. req_data A generic pointer that is passed to the requester each time it is called (see FTC_Face_Requester ). output amanager A handle to a new manager object. 0 in case of failure. return FreeType error code. 0 means success. FTC_Manager_Reset \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( void ) FTC_Manager_Reset ( FTC_Manager manager ); Empty a given cache manager. This simply gets rid of all the currently cached FT_Face and FT_Size objects within the manager. inout manager A handle to the manager. FTC_Manager_Done \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( void ) FTC_Manager_Done ( FTC_Manager manager ); Destroy a given manager after emptying it. input manager A handle to the target cache manager object. FTC_Manager_LookupFace \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_Manager_LookupFace ( FTC_Manager manager, FTC_FaceID face_id, FT_Face *aface ); Retrieve the FT_Face object that corresponds to a given face ID through a cache manager. input manager A handle to the cache manager. face_id The ID of the face object. output aface A handle to the face object. return FreeType error code. 0 means success. note The returned FT_Face object is always owned by the manager. You should never try to discard it yourself. The FT_Face object doesn't necessarily have a current size object (i.e., face->size can be 0). If you need a specific \u2018font size\u2019, use FTC_Manager_LookupSize instead. Never change the face's transformation matrix (i.e., never call the FT_Set_Transform function) on a returned face! If you need to transform glyphs, do it yourself after glyph loading. When you perform a lookup, out-of-memory errors are detected within the lookup and force incremental flushes of the cache until enough memory is released for the lookup to succeed. If a lookup fails with FT_Err_Out_Of_Memory the cache has already been completely flushed, and still no memory was available for the operation. FTC_Manager_LookupSize \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_Manager_LookupSize ( FTC_Manager manager, FTC_Scaler scaler, FT_Size *asize ); Retrieve the FT_Size object that corresponds to a given FTC_ScalerRec pointer through a cache manager. input manager A handle to the cache manager. scaler A scaler handle. output asize A handle to the size object. return FreeType error code. 0 means success. note The returned FT_Size object is always owned by the manager. You should never try to discard it by yourself. You can access the parent FT_Face object simply as size->face if you need it. Note that this object is also owned by the manager. note When you perform a lookup, out-of-memory errors are detected within the lookup and force incremental flushes of the cache until enough memory is released for the lookup to succeed. If a lookup fails with FT_Err_Out_Of_Memory the cache has already been completely flushed, and still no memory is available for the operation. FTC_Manager_RemoveFaceID \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( void ) FTC_Manager_RemoveFaceID ( FTC_Manager manager, FTC_FaceID face_id ); A special function used to indicate to the cache manager that a given FTC_FaceID is no longer valid, either because its content changed, or because it was deallocated or uninstalled. input manager The cache manager handle. face_id The FTC_FaceID to be removed. note This function flushes all nodes from the cache corresponding to this face_id , with the exception of nodes with a non-null reference count. Such nodes are however modified internally so as to never appear in later lookups with the same face_id value, and to be immediately destroyed when released by all their users. FTC_Node \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_NodeRec_* FTC_Node ; An opaque handle to a cache node object. Each cache node is reference-counted. A node with a count of 0 might be flushed out of a full cache whenever a lookup request is performed. If you look up nodes, you have the ability to \u2018acquire\u2019 them, i.e., to increment their reference count. This will prevent the node from being flushed out of the cache until you explicitly \u2018release\u2019 it (see FTC_Node_Unref ). See also FTC_SBitCache_Lookup and FTC_ImageCache_Lookup . FTC_Node_Unref \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( void ) FTC_Node_Unref ( FTC_Node node, FTC_Manager manager ); Decrement a cache node's internal reference count. When the count reaches 0, it is not destroyed but becomes eligible for subsequent cache flushes. input node The cache node handle. manager The cache manager handle. FTC_ImageCache \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ImageCacheRec_* FTC_ImageCache ; A handle to a glyph image cache object. They are designed to hold many distinct glyph images while not exceeding a certain memory threshold. FTC_ImageCache_New \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_ImageCache_New ( FTC_Manager manager, FTC_ImageCache *acache ); Create a new glyph image cache. input manager The parent manager for the image cache. output acache A handle to the new glyph image cache object. return FreeType error code. 0 means success. FTC_ImageCache_Lookup \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_ImageCache_Lookup ( FTC_ImageCache cache, FTC_ImageType type, FT_UInt gindex, FT_Glyph *aglyph, FTC_Node *anode ); Retrieve a given glyph image from a glyph image cache. input cache A handle to the source glyph image cache. type A pointer to a glyph image type descriptor. gindex The glyph index to retrieve. output aglyph The corresponding FT_Glyph object. 0 in case of failure. anode Used to return the address of the corresponding cache node after incrementing its reference count (see note below). return FreeType error code. 0 means success. note The returned glyph is owned and managed by the glyph image cache. Never try to transform or discard it manually! You can however create a copy with FT_Glyph_Copy and modify the new one. If anode is not NULL , it receives the address of the cache node containing the glyph image, after increasing its reference count. This ensures that the node (as well as the FT_Glyph ) will always be kept in the cache until you call FTC_Node_Unref to \u2018release\u2019 it. If anode is NULL , the cache node is left unchanged, which means that the FT_Glyph could be flushed out of the cache on the next call to one of the caching sub-system APIs. Don't assume that it is persistent! FTC_SBit \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_SBitRec_* FTC_SBit ; A handle to a small bitmap descriptor. See the FTC_SBitRec structure for details. FTC_SBitCache \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_SBitCacheRec_* FTC_SBitCache ; A handle to a small bitmap cache. These are special cache objects used to store small glyph bitmaps (and anti-aliased pixmaps) in a much more efficient way than the traditional glyph image cache implemented by FTC_ImageCache . FTC_SBitCache_New \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_SBitCache_New ( FTC_Manager manager, FTC_SBitCache *acache ); Create a new cache to store small glyph bitmaps. input manager A handle to the source cache manager. output acache A handle to the new sbit cache. NULL in case of error. return FreeType error code. 0 means success. FTC_SBitCache_Lookup \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_SBitCache_Lookup ( FTC_SBitCache cache, FTC_ImageType type, FT_UInt gindex, FTC_SBit *sbit, FTC_Node *anode ); Look up a given small glyph bitmap in a given sbit cache and \u2018lock\u2019 it to prevent its flushing from the cache until needed. input cache A handle to the source sbit cache. type A pointer to the glyph image type descriptor. gindex The glyph index. output sbit A handle to a small bitmap descriptor. anode Used to return the address of the corresponding cache node after incrementing its reference count (see note below). return FreeType error code. 0 means success. note The small bitmap descriptor and its bit buffer are owned by the cache and should never be freed by the application. They might as well disappear from memory on the next cache lookup, so don't treat them as persistent data. The descriptor's buffer field is set to 0 to indicate a missing glyph bitmap. If anode is not NULL , it receives the address of the cache node containing the bitmap, after increasing its reference count. This ensures that the node (as well as the image) will always be kept in the cache until you call FTC_Node_Unref to \u2018release\u2019 it. If anode is NULL , the cache node is left unchanged, which means that the bitmap could be flushed out of the cache on the next call to one of the caching sub-system APIs. Don't assume that it is persistent! FTC_CMapCache \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_CMapCacheRec_* FTC_CMapCache ; An opaque handle used to model a charmap cache. This cache is to hold character codes -> glyph indices mappings. FTC_CMapCache_New \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_CMapCache_New ( FTC_Manager manager, FTC_CMapCache *acache ); Create a new charmap cache. input manager A handle to the cache manager. output acache A new cache handle. NULL in case of error. return FreeType error code. 0 means success. note Like all other caches, this one will be destroyed with the cache manager. FTC_CMapCache_Lookup \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_UInt ) FTC_CMapCache_Lookup ( FTC_CMapCache cache, FTC_FaceID face_id, FT_Int cmap_index, FT_UInt32 char_code ); Translate a character code into a glyph index, using the charmap cache. input cache A charmap cache handle. face_id The source face ID. cmap_index The index of the charmap in the source face. Any negative value means to use the cache FT_Face 's default charmap. char_code The character code (in the corresponding charmap). return Glyph index. 0 means \u2018no glyph\u2019. FTC_ScalerRec \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ScalerRec_ { FTC_FaceID face_id; FT_UInt width; FT_UInt height; FT_Int pixel; FT_UInt x_res; FT_UInt y_res; } FTC_ScalerRec ; A structure used to describe a given character size in either pixels or points to the cache manager. See FTC_Manager_LookupSize . fields face_id The source face ID. width The character width. height The character height. pixel A Boolean. If 1, the width and height fields are interpreted as integer pixel character sizes. Otherwise, they are expressed as 1/64 of points. x_res Only used when pixel is value 0 to indicate the horizontal resolution in dpi. y_res Only used when pixel is value 0 to indicate the vertical resolution in dpi. note This type is mainly used to retrieve FT_Size objects through the cache manager. FTC_Scaler \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ScalerRec_* FTC_Scaler ; A handle to an FTC_ScalerRec structure. FTC_ImageTypeRec \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ImageTypeRec_ { FTC_FaceID face_id; FT_UInt width; FT_UInt height; FT_Int32 flags; } FTC_ImageTypeRec ; A structure used to model the type of images in a glyph cache. fields face_id The face ID. width The width in pixels. height The height in pixels. flags The load flags, as in FT_Load_Glyph . FTC_ImageType \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ImageTypeRec_* FTC_ImageType ; A handle to an FTC_ImageTypeRec structure. FTC_ImageCache_LookupScaler \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_ImageCache_LookupScaler ( FTC_ImageCache cache, FTC_Scaler scaler, FT_ULong load_flags, FT_UInt gindex, FT_Glyph *aglyph, FTC_Node *anode ); A variant of FTC_ImageCache_Lookup that uses an FTC_ScalerRec to specify the face ID and its size. input cache A handle to the source glyph image cache. scaler A pointer to a scaler descriptor. load_flags The corresponding load flags. gindex The glyph index to retrieve. output aglyph The corresponding FT_Glyph object. 0 in case of failure. anode Used to return the address of the corresponding cache node after incrementing its reference count (see note below). return FreeType error code. 0 means success. note The returned glyph is owned and managed by the glyph image cache. Never try to transform or discard it manually! You can however create a copy with FT_Glyph_Copy and modify the new one. If anode is not NULL , it receives the address of the cache node containing the glyph image, after increasing its reference count. This ensures that the node (as well as the FT_Glyph ) will always be kept in the cache until you call FTC_Node_Unref to \u2018release\u2019 it. If anode is NULL , the cache node is left unchanged, which means that the FT_Glyph could be flushed out of the cache on the next call to one of the caching sub-system APIs. Don't assume that it is persistent! Calls to FT_Set_Char_Size and friends have no effect on cached glyphs; you should always use the FreeType cache API instead. FTC_SBitRec \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_SBitRec_ { FT_Byte width; FT_Byte height; FT_Char left; FT_Char top; FT_Byte format; FT_Byte max_grays; FT_Short pitch; FT_Char xadvance; FT_Char yadvance; FT_Byte * buffer; } FTC_SBitRec ; A very compact structure used to describe a small glyph bitmap. fields width The bitmap width in pixels. height The bitmap height in pixels. left The horizontal distance from the pen position to the left bitmap border (a.k.a. \u2018left side bearing\u2019, or \u2018lsb\u2019). top The vertical distance from the pen position (on the baseline) to the upper bitmap border (a.k.a. \u2018top side bearing\u2019). The distance is positive for upwards y coordinates. format The format of the glyph bitmap (monochrome or gray). max_grays Maximum gray level value (in the range 1 to 255). pitch The number of bytes per bitmap line. May be positive or negative. xadvance The horizontal advance width in pixels. yadvance The vertical advance height in pixels. buffer A pointer to the bitmap pixels. FTC_SBitCache_LookupScaler \u00b6 Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_SBitCache_LookupScaler ( FTC_SBitCache cache, FTC_Scaler scaler, FT_ULong load_flags, FT_UInt gindex, FTC_SBit *sbit, FTC_Node *anode ); A variant of FTC_SBitCache_Lookup that uses an FTC_ScalerRec to specify the face ID and its size. input cache A handle to the source sbit cache. scaler A pointer to the scaler descriptor. load_flags The corresponding load flags. gindex The glyph index. output sbit A handle to a small bitmap descriptor. anode Used to return the address of the corresponding cache node after incrementing its reference count (see note below). return FreeType error code. 0 means success. note The small bitmap descriptor and its bit buffer are owned by the cache and should never be freed by the application. They might as well disappear from memory on the next cache lookup, so don't treat them as persistent data. The descriptor's buffer field is set to 0 to indicate a missing glyph bitmap. If anode is not NULL , it receives the address of the cache node containing the bitmap, after increasing its reference count. This ensures that the node (as well as the image) will always be kept in the cache until you call FTC_Node_Unref to \u2018release\u2019 it. If anode is NULL , the cache node is left unchanged, which means that the bitmap could be flushed out of the cache on the next call to one of the caching sub-system APIs. Don't assume that it is persistent!","title":"Cache Sub-System"},{"location":"ft2-cache_subsystem.html#cache-sub-system","text":"","title":"Cache Sub-System"},{"location":"ft2-cache_subsystem.html#synopsis","text":"This section describes the FreeType 2 cache sub-system, which is used to limit the number of concurrently opened FT_Face and FT_Size objects, as well as caching information like character maps and glyph images while limiting their maximum memory usage. Note that all types and functions begin with the FTC_ prefix rather than the usual FT_ prefix in the rest of FreeType. The cache is highly portable and, thus, doesn't know anything about the fonts installed on your system, or how to access them. Therefore, it requires the following. FTC_FaceID , an arbitrary non-zero value that uniquely identifies available or installed font faces, has to be provided to the cache by the client. Note that the cache only stores and compares these values and doesn't try to interpret them in any way, but they have to be persistent on the client side. FTC_Face_Requester , a method to convert an FTC_FaceID into a new FT_Face object when necessary, has to be provided to the cache by the client. The FT_Face object is completely managed by the cache, including its termination through FT_Done_Face . To monitor termination of face objects, the finalizer callback in the generic field of the FT_Face object can be used, which might also be used to store the FTC_FaceID of the face. Clients are free to map face IDs to anything useful. The most simple usage is, for example, to associate them to a {pathname,face_index} pair that is then used by FTC_Face_Requester to call FT_New_Face . However, more complex schemes are also possible. Note that for the cache to work correctly, the face ID values must be persistent , which means that the contents they point to should not change at runtime, or that their value should not become invalid. If this is unavoidable (e.g., when a font is uninstalled at runtime), you should call FTC_Manager_RemoveFaceID as soon as possible to let the cache get rid of any references to the old FTC_FaceID it may keep internally. Failure to do so will lead to incorrect behaviour or even crashes in FTC_Face_Requester . To use the cache, start with calling FTC_Manager_New to create a new FTC_Manager object, which models a single cache instance. You can then look up FT_Face and FT_Size objects with FTC_Manager_LookupFace and FTC_Manager_LookupSize , respectively, and use them in any FreeType work stream. You can also cache other FreeType objects as follows. If you want to use the charmap caching, call FTC_CMapCache_New , then later use FTC_CMapCache_Lookup to perform the equivalent of FT_Get_Char_Index , only much faster. If you want to use the FT_Glyph caching, call FTC_ImageCache_New , then later use FTC_ImageCache_Lookup to retrieve the corresponding FT_Glyph objects from the cache. If you need lots of small bitmaps, it is much more memory-efficient to call FTC_SBitCache_New followed by FTC_SBitCache_Lookup . This returns FTC_SBitRec structures, which are used to store small bitmaps directly. (A small bitmap is one whose metrics and dimensions all fit into 8-bit integers).","title":"Synopsis"},{"location":"ft2-cache_subsystem.html#ftc_manager","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ManagerRec_* FTC_Manager ; This object corresponds to one instance of the cache-subsystem. It is used to cache one or more FT_Face objects, along with corresponding FT_Size objects. The manager intentionally limits the total number of opened FT_Face and FT_Size objects to control memory usage. See the max_faces and max_sizes parameters of FTC_Manager_New . The manager is also used to cache \u2018nodes\u2019 of various types while limiting their total memory usage. All limitations are enforced by keeping lists of managed objects in most-recently-used order, and flushing old nodes to make room for new ones.","title":"FTC_Manager"},{"location":"ft2-cache_subsystem.html#ftc_faceid","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef FT_Pointer FTC_FaceID ; An opaque pointer type that is used to identity face objects. The contents of such objects is application-dependent. These pointers are typically used to point to a user-defined structure containing a font file path, and face index.","title":"FTC_FaceID"},{"location":"ft2-cache_subsystem.html#ftc_face_requester","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef FT_Error (* FTC_Face_Requester )( FTC_FaceID face_id, FT_Library library, FT_Pointer req_data, FT_Face * aface ); A callback function provided by client applications. It is used by the cache manager to translate a given FTC_FaceID into a new valid FT_Face object, on demand.","title":"FTC_Face_Requester"},{"location":"ft2-cache_subsystem.html#ftc_manager_new","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_Manager_New ( FT_Library library, FT_UInt max_faces, FT_UInt max_sizes, FT_ULong max_bytes, FTC_Face_Requester requester, FT_Pointer req_data, FTC_Manager *amanager ); Create a new cache manager.","title":"FTC_Manager_New"},{"location":"ft2-cache_subsystem.html#ftc_manager_reset","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( void ) FTC_Manager_Reset ( FTC_Manager manager ); Empty a given cache manager. This simply gets rid of all the currently cached FT_Face and FT_Size objects within the manager.","title":"FTC_Manager_Reset"},{"location":"ft2-cache_subsystem.html#ftc_manager_done","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( void ) FTC_Manager_Done ( FTC_Manager manager ); Destroy a given manager after emptying it.","title":"FTC_Manager_Done"},{"location":"ft2-cache_subsystem.html#ftc_manager_lookupface","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_Manager_LookupFace ( FTC_Manager manager, FTC_FaceID face_id, FT_Face *aface ); Retrieve the FT_Face object that corresponds to a given face ID through a cache manager.","title":"FTC_Manager_LookupFace"},{"location":"ft2-cache_subsystem.html#ftc_manager_lookupsize","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_Manager_LookupSize ( FTC_Manager manager, FTC_Scaler scaler, FT_Size *asize ); Retrieve the FT_Size object that corresponds to a given FTC_ScalerRec pointer through a cache manager.","title":"FTC_Manager_LookupSize"},{"location":"ft2-cache_subsystem.html#ftc_manager_removefaceid","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( void ) FTC_Manager_RemoveFaceID ( FTC_Manager manager, FTC_FaceID face_id ); A special function used to indicate to the cache manager that a given FTC_FaceID is no longer valid, either because its content changed, or because it was deallocated or uninstalled.","title":"FTC_Manager_RemoveFaceID"},{"location":"ft2-cache_subsystem.html#ftc_node","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_NodeRec_* FTC_Node ; An opaque handle to a cache node object. Each cache node is reference-counted. A node with a count of 0 might be flushed out of a full cache whenever a lookup request is performed. If you look up nodes, you have the ability to \u2018acquire\u2019 them, i.e., to increment their reference count. This will prevent the node from being flushed out of the cache until you explicitly \u2018release\u2019 it (see FTC_Node_Unref ). See also FTC_SBitCache_Lookup and FTC_ImageCache_Lookup .","title":"FTC_Node"},{"location":"ft2-cache_subsystem.html#ftc_node_unref","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( void ) FTC_Node_Unref ( FTC_Node node, FTC_Manager manager ); Decrement a cache node's internal reference count. When the count reaches 0, it is not destroyed but becomes eligible for subsequent cache flushes.","title":"FTC_Node_Unref"},{"location":"ft2-cache_subsystem.html#ftc_imagecache","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ImageCacheRec_* FTC_ImageCache ; A handle to a glyph image cache object. They are designed to hold many distinct glyph images while not exceeding a certain memory threshold.","title":"FTC_ImageCache"},{"location":"ft2-cache_subsystem.html#ftc_imagecache_new","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_ImageCache_New ( FTC_Manager manager, FTC_ImageCache *acache ); Create a new glyph image cache.","title":"FTC_ImageCache_New"},{"location":"ft2-cache_subsystem.html#ftc_imagecache_lookup","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_ImageCache_Lookup ( FTC_ImageCache cache, FTC_ImageType type, FT_UInt gindex, FT_Glyph *aglyph, FTC_Node *anode ); Retrieve a given glyph image from a glyph image cache.","title":"FTC_ImageCache_Lookup"},{"location":"ft2-cache_subsystem.html#ftc_sbit","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_SBitRec_* FTC_SBit ; A handle to a small bitmap descriptor. See the FTC_SBitRec structure for details.","title":"FTC_SBit"},{"location":"ft2-cache_subsystem.html#ftc_sbitcache","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_SBitCacheRec_* FTC_SBitCache ; A handle to a small bitmap cache. These are special cache objects used to store small glyph bitmaps (and anti-aliased pixmaps) in a much more efficient way than the traditional glyph image cache implemented by FTC_ImageCache .","title":"FTC_SBitCache"},{"location":"ft2-cache_subsystem.html#ftc_sbitcache_new","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_SBitCache_New ( FTC_Manager manager, FTC_SBitCache *acache ); Create a new cache to store small glyph bitmaps.","title":"FTC_SBitCache_New"},{"location":"ft2-cache_subsystem.html#ftc_sbitcache_lookup","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_SBitCache_Lookup ( FTC_SBitCache cache, FTC_ImageType type, FT_UInt gindex, FTC_SBit *sbit, FTC_Node *anode ); Look up a given small glyph bitmap in a given sbit cache and \u2018lock\u2019 it to prevent its flushing from the cache until needed.","title":"FTC_SBitCache_Lookup"},{"location":"ft2-cache_subsystem.html#ftc_cmapcache","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_CMapCacheRec_* FTC_CMapCache ; An opaque handle used to model a charmap cache. This cache is to hold character codes -> glyph indices mappings.","title":"FTC_CMapCache"},{"location":"ft2-cache_subsystem.html#ftc_cmapcache_new","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_CMapCache_New ( FTC_Manager manager, FTC_CMapCache *acache ); Create a new charmap cache.","title":"FTC_CMapCache_New"},{"location":"ft2-cache_subsystem.html#ftc_cmapcache_lookup","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_UInt ) FTC_CMapCache_Lookup ( FTC_CMapCache cache, FTC_FaceID face_id, FT_Int cmap_index, FT_UInt32 char_code ); Translate a character code into a glyph index, using the charmap cache.","title":"FTC_CMapCache_Lookup"},{"location":"ft2-cache_subsystem.html#ftc_scalerrec","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ScalerRec_ { FTC_FaceID face_id; FT_UInt width; FT_UInt height; FT_Int pixel; FT_UInt x_res; FT_UInt y_res; } FTC_ScalerRec ; A structure used to describe a given character size in either pixels or points to the cache manager. See FTC_Manager_LookupSize .","title":"FTC_ScalerRec"},{"location":"ft2-cache_subsystem.html#ftc_scaler","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ScalerRec_* FTC_Scaler ; A handle to an FTC_ScalerRec structure.","title":"FTC_Scaler"},{"location":"ft2-cache_subsystem.html#ftc_imagetyperec","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ImageTypeRec_ { FTC_FaceID face_id; FT_UInt width; FT_UInt height; FT_Int32 flags; } FTC_ImageTypeRec ; A structure used to model the type of images in a glyph cache.","title":"FTC_ImageTypeRec"},{"location":"ft2-cache_subsystem.html#ftc_imagetype","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_ImageTypeRec_* FTC_ImageType ; A handle to an FTC_ImageTypeRec structure.","title":"FTC_ImageType"},{"location":"ft2-cache_subsystem.html#ftc_imagecache_lookupscaler","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_ImageCache_LookupScaler ( FTC_ImageCache cache, FTC_Scaler scaler, FT_ULong load_flags, FT_UInt gindex, FT_Glyph *aglyph, FTC_Node *anode ); A variant of FTC_ImageCache_Lookup that uses an FTC_ScalerRec to specify the face ID and its size.","title":"FTC_ImageCache_LookupScaler"},{"location":"ft2-cache_subsystem.html#ftc_sbitrec","text":"Defined in FT_CACHE_H (freetype/ftcache.h). typedef struct FTC_SBitRec_ { FT_Byte width; FT_Byte height; FT_Char left; FT_Char top; FT_Byte format; FT_Byte max_grays; FT_Short pitch; FT_Char xadvance; FT_Char yadvance; FT_Byte * buffer; } FTC_SBitRec ; A very compact structure used to describe a small glyph bitmap.","title":"FTC_SBitRec"},{"location":"ft2-cache_subsystem.html#ftc_sbitcache_lookupscaler","text":"Defined in FT_CACHE_H (freetype/ftcache.h). FT_EXPORT( FT_Error ) FTC_SBitCache_LookupScaler ( FTC_SBitCache cache, FTC_Scaler scaler, FT_ULong load_flags, FT_UInt gindex, FTC_SBit *sbit, FTC_Node *anode ); A variant of FTC_SBitCache_Lookup that uses an FTC_ScalerRec to specify the face ID and its size.","title":"FTC_SBitCache_LookupScaler"},{"location":"ft2-cff_driver.html","text":"FreeType \u00bb Docs \u00bb Controlling FreeType Modules \u00bb The CFF driver The CFF driver \u00b6 Synopsis \u00b6 While FreeType's CFF driver doesn't expose API functions by itself, it is possible to control its behaviour with FT_Property_Set and FT_Property_Get . The CFF driver's module name is \u2018cff\u2019. Available properties are hinting-engine , no-stem-darkening , darkening-parameters , and random-seed , as documented in the \u2018 Driver properties \u2019 section. Hinting and anti-aliasing principles of the new engine The rasterizer is positioning horizontal features (e.g., ascender height & x-height, or crossbars) on the pixel grid and minimizing the amount of anti-aliasing applied to them, while placing vertical features (vertical stems) on the pixel grid without hinting, thus representing the stem position and weight accurately. Sometimes the vertical stems may be only partially black. In this context, \u2018anti-aliasing\u2019 means that stems are not positioned exactly on pixel borders, causing a fuzzy appearance. There are two principles behind this approach. 1) No hinting in the horizontal direction: Unlike \u2018superhinted\u2019 TrueType, which changes glyph widths to accommodate regular inter-glyph spacing, Adobe's approach is \u2018faithful to the design\u2019 in representing both the glyph width and the inter-glyph spacing designed for the font. This makes the screen display as close as it can be to the result one would get with infinite resolution, while preserving what is considered the key characteristics of each glyph. Note that the distances between unhinted and grid-fitted positions at small sizes are comparable to kerning values and thus would be noticeable (and distracting) while reading if hinting were applied. One of the reasons to not hint horizontally is anti-aliasing for LCD screens: The pixel geometry of modern displays supplies three vertical subpixels as the eye moves horizontally across each visible pixel. On devices where we can be certain this characteristic is present a rasterizer can take advantage of the subpixels to add increments of weight. In Western writing systems this turns out to be the more critical direction anyway; the weights and spacing of vertical stems (see above) are central to Armenian, Cyrillic, Greek, and Latin type designs. Even when the rasterizer uses greyscale anti-aliasing instead of color (a necessary compromise when one doesn't know the screen characteristics), the unhinted vertical features preserve the design's weight and spacing much better than aliased type would. 2) Alignment in the vertical direction: Weights and spacing along the y axis are less critical; what is much more important is the visual alignment of related features (like cap-height and x-height). The sense of alignment for these is enhanced by the sharpness of grid-fit edges, while the cruder vertical resolution (full pixels instead of \u2153 pixels) is less of a problem. On the technical side, horizontal alignment zones for ascender, x-height, and other important height values (traditionally called \u2018blue zones\u2019) as defined in the font are positioned independently, each being rounded to the nearest pixel edge, taking care of overshoot suppression at small sizes, stem darkening, and scaling. Hstems (that is, hint values defined in the font to help align horizontal features) that fall within a blue zone are said to be \u2018captured\u2019 and are aligned to that zone. Uncaptured stems are moved in one of four ways, top edge up or down, bottom edge up or down. Unless there are conflicting hstems, the smallest movement is taken to minimize distortion.","title":"The CFF driver"},{"location":"ft2-cff_driver.html#the-cff-driver","text":"","title":"The CFF driver"},{"location":"ft2-cff_driver.html#synopsis","text":"While FreeType's CFF driver doesn't expose API functions by itself, it is possible to control its behaviour with FT_Property_Set and FT_Property_Get . The CFF driver's module name is \u2018cff\u2019. Available properties are hinting-engine , no-stem-darkening , darkening-parameters , and random-seed , as documented in the \u2018 Driver properties \u2019 section. Hinting and anti-aliasing principles of the new engine The rasterizer is positioning horizontal features (e.g., ascender height & x-height, or crossbars) on the pixel grid and minimizing the amount of anti-aliasing applied to them, while placing vertical features (vertical stems) on the pixel grid without hinting, thus representing the stem position and weight accurately. Sometimes the vertical stems may be only partially black. In this context, \u2018anti-aliasing\u2019 means that stems are not positioned exactly on pixel borders, causing a fuzzy appearance. There are two principles behind this approach. 1) No hinting in the horizontal direction: Unlike \u2018superhinted\u2019 TrueType, which changes glyph widths to accommodate regular inter-glyph spacing, Adobe's approach is \u2018faithful to the design\u2019 in representing both the glyph width and the inter-glyph spacing designed for the font. This makes the screen display as close as it can be to the result one would get with infinite resolution, while preserving what is considered the key characteristics of each glyph. Note that the distances between unhinted and grid-fitted positions at small sizes are comparable to kerning values and thus would be noticeable (and distracting) while reading if hinting were applied. One of the reasons to not hint horizontally is anti-aliasing for LCD screens: The pixel geometry of modern displays supplies three vertical subpixels as the eye moves horizontally across each visible pixel. On devices where we can be certain this characteristic is present a rasterizer can take advantage of the subpixels to add increments of weight. In Western writing systems this turns out to be the more critical direction anyway; the weights and spacing of vertical stems (see above) are central to Armenian, Cyrillic, Greek, and Latin type designs. Even when the rasterizer uses greyscale anti-aliasing instead of color (a necessary compromise when one doesn't know the screen characteristics), the unhinted vertical features preserve the design's weight and spacing much better than aliased type would. 2) Alignment in the vertical direction: Weights and spacing along the y axis are less critical; what is much more important is the visual alignment of related features (like cap-height and x-height). The sense of alignment for these is enhanced by the sharpness of grid-fit edges, while the cruder vertical resolution (full pixels instead of \u2153 pixels) is less of a problem. On the technical side, horizontal alignment zones for ascender, x-height, and other important height values (traditionally called \u2018blue zones\u2019) as defined in the font are positioned independently, each being rounded to the nearest pixel edge, taking care of overshoot suppression at small sizes, stem darkening, and scaling. Hstems (that is, hint values defined in the font to help align horizontal features) that fall within a blue zone are said to be \u2018captured\u2019 and are aligned to that zone. Uncaptured stems are moved in one of four ways, top edge up or down, bottom edge up or down. Unless there are conflicting hstems, the smallest movement is taken to minimize distortion.","title":"Synopsis"},{"location":"ft2-character_mapping.html","text":"FreeType \u00bb Docs \u00bb Core API \u00bb Character Mapping Character Mapping \u00b6 Synopsis \u00b6 This section holds functions and structures that are related to mapping character input codes to glyph indices. Note that for many scripts the simplistic approach used by FreeType of mapping a single character to a single glyph is not valid or possible! In general, a higher-level library like HarfBuzz or ICU should be used for handling text strings. FT_CharMap \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_CharMapRec_* FT_CharMap ; A handle to a character map (usually abbreviated to \u2018charmap\u2019). A charmap is used to translate character codes in a given encoding into glyph indexes for its parent's face. Some font formats may provide several charmaps per font. Each face object owns zero or more charmaps, but only one of them can be \u2018active\u2019, providing the data used by FT_Get_Char_Index or FT_Load_Char . The list of available charmaps in a face is available through the face->num_charmaps and face->charmaps fields of FT_FaceRec . The currently active charmap is available as face->charmap . You should call FT_Set_Charmap to change it. note When a new face is created (either through FT_New_Face or FT_Open_Face ), the library looks for a Unicode charmap within the list and automatically activates it. If there is no Unicode charmap, FreeType doesn't set an \u2018active\u2019 charmap. also See FT_CharMapRec for the publicly accessible fields of a given character map. FT_CharMapRec \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_CharMapRec_ { FT_Face face; FT_Encoding encoding; FT_UShort platform_id; FT_UShort encoding_id; } FT_CharMapRec ; The base charmap structure. fields face A handle to the parent face object. encoding An FT_Encoding tag identifying the charmap. Use this with FT_Select_Charmap . platform_id An ID number describing the platform for the following encoding ID. This comes directly from the TrueType specification and gets emulated for other formats. encoding_id A platform-specific encoding number. This also comes from the TrueType specification and gets emulated similarly. FT_Encoding \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef enum FT_Encoding_ { FT_ENC_TAG ( FT_ENCODING_NONE , 0, 0, 0, 0 ), FT_ENC_TAG ( FT_ENCODING_MS_SYMBOL , 's', 'y', 'm', 'b' ), FT_ENC_TAG ( FT_ENCODING_UNICODE , 'u', 'n', 'i', 'c' ), FT_ENC_TAG ( FT_ENCODING_SJIS , 's', 'j', 'i', 's' ), FT_ENC_TAG ( FT_ENCODING_PRC , 'g', 'b', ' ', ' ' ), FT_ENC_TAG ( FT_ENCODING_BIG5 , 'b', 'i', 'g', '5' ), FT_ENC_TAG ( FT_ENCODING_WANSUNG , 'w', 'a', 'n', 's' ), FT_ENC_TAG ( FT_ENCODING_JOHAB , 'j', 'o', 'h', 'a' ), /* for backward compatibility */ FT_ENCODING_GB2312 = FT_ENCODING_PRC , FT_ENCODING_MS_SJIS = FT_ENCODING_SJIS , FT_ENCODING_MS_GB2312 = FT_ENCODING_PRC , FT_ENCODING_MS_BIG5 = FT_ENCODING_BIG5 , FT_ENCODING_MS_WANSUNG = FT_ENCODING_WANSUNG , FT_ENCODING_MS_JOHAB = FT_ENCODING_JOHAB , FT_ENC_TAG ( FT_ENCODING_ADOBE_STANDARD , 'A', 'D', 'O', 'B' ), FT_ENC_TAG ( FT_ENCODING_ADOBE_EXPERT , 'A', 'D', 'B', 'E' ), FT_ENC_TAG ( FT_ENCODING_ADOBE_CUSTOM , 'A', 'D', 'B', 'C' ), FT_ENC_TAG ( FT_ENCODING_ADOBE_LATIN_1 , 'l', 'a', 't', '1' ), FT_ENC_TAG ( FT_ENCODING_OLD_LATIN_2 , 'l', 'a', 't', '2' ), FT_ENC_TAG ( FT_ENCODING_APPLE_ROMAN , 'a', 'r', 'm', 'n' ) } FT_Encoding ; /* these constants are deprecated; use the corresponding ` FT_Encoding ` */ /* values instead */ # define ft_encoding_none FT_ENCODING_NONE # define ft_encoding_unicode FT_ENCODING_UNICODE # define ft_encoding_symbol FT_ENCODING_MS_SYMBOL # define ft_encoding_latin_1 FT_ENCODING_ADOBE_LATIN_1 # define ft_encoding_latin_2 FT_ENCODING_OLD_LATIN_2 # define ft_encoding_sjis FT_ENCODING_SJIS # define ft_encoding_gb2312 FT_ENCODING_PRC # define ft_encoding_big5 FT_ENCODING_BIG5 # define ft_encoding_wansung FT_ENCODING_WANSUNG # define ft_encoding_johab FT_ENCODING_JOHAB # define ft_encoding_adobe_standard FT_ENCODING_ADOBE_STANDARD # define ft_encoding_adobe_expert FT_ENCODING_ADOBE_EXPERT # define ft_encoding_adobe_custom FT_ENCODING_ADOBE_CUSTOM # define ft_encoding_apple_roman FT_ENCODING_APPLE_ROMAN An enumeration to specify character sets supported by charmaps. Used in the FT_Select_Charmap API function. note Despite the name, this enumeration lists specific character repertoires (i.e., charsets), and not text encoding methods (e.g., UTF-8, UTF-16, etc.). Other encodings might be defined in the future. values FT_ENCODING_NONE The encoding value 0 is reserved for all formats except BDF, PCF, and Windows FNT; see below for more information. FT_ENCODING_UNICODE The Unicode character set. This value covers all versions of the Unicode repertoire, including ASCII and Latin-1. Most fonts include a Unicode charmap, but not all of them. For example, if you want to access Unicode value U+1F028 (and the font contains it), use value 0x1F028 as the input value for FT_Get_Char_Index . FT_ENCODING_MS_SYMBOL Microsoft Symbol encoding, used to encode mathematical symbols and wingdings. For more information, see \u2018 https://www.microsoft.com/typography/otspec/recom.htm#non-standard-symbol-fonts \u2019, \u2018 http://www.kostis.net/charsets/symbol.htm \u2019, and \u2018 http://www.kostis.net/charsets/wingding.htm \u2019. This encoding uses character codes from the PUA (Private Unicode Area) in the range U+F020-U+F0FF. FT_ENCODING_SJIS Shift JIS encoding for Japanese. More info at \u2018 https://en.wikipedia.org/wiki/Shift_JIS \u2019. See note on multi-byte encodings below. FT_ENCODING_PRC Corresponds to encoding systems mainly for Simplified Chinese as used in People's Republic of China (PRC). The encoding layout is based on GB 2312 and its supersets GBK and GB 18030. FT_ENCODING_BIG5 Corresponds to an encoding system for Traditional Chinese as used in Taiwan and Hong Kong. FT_ENCODING_WANSUNG Corresponds to the Korean encoding system known as Extended Wansung (MS Windows code page 949). For more information see \u2018 https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WindowsBestFit/bestfit949.txt \u2019. FT_ENCODING_JOHAB The Korean standard character set (KS C 5601-1992), which corresponds to MS Windows code page 1361. This character set includes all possible Hangul character combinations. FT_ENCODING_ADOBE_LATIN_1 Corresponds to a Latin-1 encoding as defined in a Type 1 PostScript font. It is limited to 256 character codes. FT_ENCODING_ADOBE_STANDARD Adobe Standard encoding, as found in Type 1, CFF, and OpenType/CFF fonts. It is limited to 256 character codes. FT_ENCODING_ADOBE_EXPERT Adobe Expert encoding, as found in Type 1, CFF, and OpenType/CFF fonts. It is limited to 256 character codes. FT_ENCODING_ADOBE_CUSTOM Corresponds to a custom encoding, as found in Type 1, CFF, and OpenType/CFF fonts. It is limited to 256 character codes. FT_ENCODING_APPLE_ROMAN Apple roman encoding. Many TrueType and OpenType fonts contain a charmap for this 8-bit encoding, since older versions of Mac OS are able to use it. FT_ENCODING_OLD_LATIN_2 This value is deprecated and was neither used nor reported by FreeType. Don't use or test for it. FT_ENCODING_MS_SJIS Same as FT_ENCODING_SJIS. Deprecated. FT_ENCODING_MS_GB2312 Same as FT_ENCODING_PRC. Deprecated. FT_ENCODING_MS_BIG5 Same as FT_ENCODING_BIG5. Deprecated. FT_ENCODING_MS_WANSUNG Same as FT_ENCODING_WANSUNG. Deprecated. FT_ENCODING_MS_JOHAB Same as FT_ENCODING_JOHAB. Deprecated. note When loading a font, FreeType makes a Unicode charmap active if possible (either if the font provides such a charmap, or if FreeType can synthesize one from PostScript glyph name dictionaries; in either case, the charmap is tagged with FT_ENCODING_UNICODE ). If such a charmap is synthesized, it is placed at the first position of the charmap array. All other encodings are considered legacy and tagged only if explicitly defined in the font file. Otherwise, FT_ENCODING_NONE is used. FT_ENCODING_NONE is set by the BDF and PCF drivers if the charmap is neither Unicode nor ISO-8859-1 (otherwise it is set to FT_ENCODING_UNICODE ). Use FT_Get_BDF_Charset_ID to find out which encoding is really present. If, for example, the cs_registry field is \u2018KOI8\u2019 and the cs_encoding field is \u2018R\u2019, the font is encoded in KOI8-R. FT_ENCODING_NONE is always set (with a single exception) by the winfonts driver. Use FT_Get_WinFNT_Header and examine the charset field of the FT_WinFNT_HeaderRec structure to find out which encoding is really present. For example, FT_WinFNT_ID_CP1251 (204) means Windows code page 1251 (for Russian). FT_ENCODING_NONE is set if platform_id is TT_PLATFORM_MACINTOSH and encoding_id is not TT_MAC_ID_ROMAN (otherwise it is set to FT_ENCODING_APPLE_ROMAN ). If platform_id is TT_PLATFORM_MACINTOSH , use the function FT_Get_CMap_Language_ID to query the Mac language ID that may be needed to be able to distinguish Apple encoding variants. See https://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/Readme.txt to get an idea how to do that. Basically, if the language ID is 0, don't use it, otherwise subtract 1 from the language ID. Then examine encoding_id . If, for example, encoding_id is TT_MAC_ID_ROMAN and the language ID (minus 1) is TT_MAC_LANGID_GREEK , it is the Greek encoding, not Roman. TT_MAC_ID_ARABIC with TT_MAC_LANGID_FARSI means the Farsi variant of the Arabic encoding. FT_ENC_TAG \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # ifndef FT_ENC_TAG # define FT_ENC_TAG ( value, a, b, c, d ) \\ value = ( ( FT_STATIC_BYTE_CAST( FT_UInt32 , a ) << 24 ) | \\ ( FT_STATIC_BYTE_CAST( FT_UInt32 , b ) << 16 ) | \\ ( FT_STATIC_BYTE_CAST( FT_UInt32 , c ) << 8 ) | \\ FT_STATIC_BYTE_CAST( FT_UInt32 , d ) ) # endif /* FT_ENC_TAG */ This macro converts four-letter tags into an unsigned long. It is used to define \u2018encoding\u2019 identifiers (see FT_Encoding ). note Since many 16-bit compilers don't like 32-bit enumerations, you should redefine this macro in case of problems to something like this: #define FT_ENC_TAG( value, a, b, c, d ) value to get a simple enumeration without assigning special numbers. FT_Select_Charmap \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Select_Charmap ( FT_Face face, FT_Encoding encoding ); Select a given charmap by its encoding tag (as listed in freetype.h ). inout face A handle to the source face object. input encoding A handle to the selected encoding. return FreeType error code. 0 means success. note This function returns an error if no charmap in the face corresponds to the encoding queried here. Because many fonts contain more than a single cmap for Unicode encoding, this function has some special code to select the one that covers Unicode best (\u2018best\u2019 in the sense that a UCS-4 cmap is preferred to a UCS-2 cmap). It is thus preferable to FT_Set_Charmap in this case. FT_Set_Charmap \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Set_Charmap ( FT_Face face, FT_CharMap charmap ); Select a given charmap for character code to glyph index mapping. inout face A handle to the source face object. input charmap A handle to the selected charmap. return FreeType error code. 0 means success. note This function returns an error if the charmap is not part of the face (i.e., if it is not listed in the face->charmaps table). It also fails if an OpenType type 14 charmap is selected (which doesn't map character codes to glyph indices at all). FT_Get_Charmap_Index \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Int ) FT_Get_Charmap_Index ( FT_CharMap charmap ); Retrieve index of a given charmap. input charmap A handle to a charmap. return The index into the array of character maps within the face to which charmap belongs. If an error occurs, -1 is returned. FT_Get_Char_Index \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt ) FT_Get_Char_Index ( FT_Face face, FT_ULong charcode ); Return the glyph index of a given character code. This function uses the currently selected charmap to do the mapping. input face A handle to the source face object. charcode The character code. return The glyph index. 0 means \u2018undefined character code\u2019. note If you use FreeType to manipulate the contents of font files directly, be aware that the glyph index returned by this function doesn't always correspond to the internal indices used within the file. This is done to ensure that value 0 always corresponds to the \u2018missing glyph\u2019. If the first glyph is not named \u2018.notdef\u2019, then for Type 1 and Type 42 fonts, \u2018.notdef\u2019 will be moved into the glyph ID 0 position, and whatever was there will be moved to the position \u2018.notdef\u2019 had. For Type 1 fonts, if there is no \u2018.notdef\u2019 glyph at all, then one will be created at index 0 and whatever was there will be moved to the last index \u2013 Type 42 fonts are considered invalid under this condition. FT_Get_First_Char \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_ULong ) FT_Get_First_Char ( FT_Face face, FT_UInt *agindex ); Return the first character code in the current charmap of a given face, together with its corresponding glyph index. input face A handle to the source face object. output agindex Glyph index of first character code. 0 if charmap is empty. return The charmap's first character code. note You should use this function together with FT_Get_Next_Char to parse all character codes available in a given charmap. The code should look like this: FT_ULong charcode; FT_UInt gindex; charcode = FT_Get_First_Char( face, &gindex ); while ( gindex != 0 ) { ... do something with (charcode,gindex) pair ... charcode = FT_Get_Next_Char( face, charcode, &gindex ); } Be aware that character codes can have values up to 0xFFFFFFFF; this might happen for non-Unicode or malformed cmaps. However, even with regular Unicode encoding, so-called \u2018last resort fonts\u2019 (using SFNT cmap format 13, see function FT_Get_CMap_Format ) normally have entries for all Unicode characters up to 0x1FFFFF, which can cause a lot of iterations. Note that *agindex is set to 0 if the charmap is empty. The result itself can be 0 in two cases: if the charmap is empty or if the value 0 is the first valid character code. FT_Get_Next_Char \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_ULong ) FT_Get_Next_Char ( FT_Face face, FT_ULong char_code, FT_UInt *agindex ); Return the next character code in the current charmap of a given face following the value char_code , as well as the corresponding glyph index. input face A handle to the source face object. char_code The starting character code. output agindex Glyph index of next character code. 0 if charmap is empty. return The charmap's next character code. note You should use this function with FT_Get_First_Char to walk over all character codes available in a given charmap. See the note for that function for a simple code example. Note that *agindex is set to 0 when there are no more codes in the charmap. FT_Load_Char \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Load_Char ( FT_Face face, FT_ULong char_code, FT_Int32 load_flags ); Load a glyph into the glyph slot of a face object, accessed by its character code. inout face A handle to a target face object where the glyph is loaded. input char_code The glyph's character code, according to the current charmap used in the face. load_flags A flag indicating what to load for this glyph. The FT_LOAD_XXX constants can be used to control the glyph loading process (e.g., whether the outline should be scaled, whether to load bitmaps or not, whether to hint the outline, etc). return FreeType error code. 0 means success. note This function simply calls FT_Get_Char_Index and FT_Load_Glyph . Many fonts contain glyphs that can't be loaded by this function since its glyph indices are not listed in any of the font's charmaps. If no active cmap is set up (i.e., face->charmap is zero), the call to FT_Get_Char_Index is omitted, and the function behaves identically to FT_Load_Glyph .","title":"Character Mapping"},{"location":"ft2-character_mapping.html#character-mapping","text":"","title":"Character Mapping"},{"location":"ft2-character_mapping.html#synopsis","text":"This section holds functions and structures that are related to mapping character input codes to glyph indices. Note that for many scripts the simplistic approach used by FreeType of mapping a single character to a single glyph is not valid or possible! In general, a higher-level library like HarfBuzz or ICU should be used for handling text strings.","title":"Synopsis"},{"location":"ft2-character_mapping.html#ft_charmap","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_CharMapRec_* FT_CharMap ; A handle to a character map (usually abbreviated to \u2018charmap\u2019). A charmap is used to translate character codes in a given encoding into glyph indexes for its parent's face. Some font formats may provide several charmaps per font. Each face object owns zero or more charmaps, but only one of them can be \u2018active\u2019, providing the data used by FT_Get_Char_Index or FT_Load_Char . The list of available charmaps in a face is available through the face->num_charmaps and face->charmaps fields of FT_FaceRec . The currently active charmap is available as face->charmap . You should call FT_Set_Charmap to change it.","title":"FT_CharMap"},{"location":"ft2-character_mapping.html#ft_charmaprec","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_CharMapRec_ { FT_Face face; FT_Encoding encoding; FT_UShort platform_id; FT_UShort encoding_id; } FT_CharMapRec ; The base charmap structure.","title":"FT_CharMapRec"},{"location":"ft2-character_mapping.html#ft_encoding","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef enum FT_Encoding_ { FT_ENC_TAG ( FT_ENCODING_NONE , 0, 0, 0, 0 ), FT_ENC_TAG ( FT_ENCODING_MS_SYMBOL , 's', 'y', 'm', 'b' ), FT_ENC_TAG ( FT_ENCODING_UNICODE , 'u', 'n', 'i', 'c' ), FT_ENC_TAG ( FT_ENCODING_SJIS , 's', 'j', 'i', 's' ), FT_ENC_TAG ( FT_ENCODING_PRC , 'g', 'b', ' ', ' ' ), FT_ENC_TAG ( FT_ENCODING_BIG5 , 'b', 'i', 'g', '5' ), FT_ENC_TAG ( FT_ENCODING_WANSUNG , 'w', 'a', 'n', 's' ), FT_ENC_TAG ( FT_ENCODING_JOHAB , 'j', 'o', 'h', 'a' ), /* for backward compatibility */ FT_ENCODING_GB2312 = FT_ENCODING_PRC , FT_ENCODING_MS_SJIS = FT_ENCODING_SJIS , FT_ENCODING_MS_GB2312 = FT_ENCODING_PRC , FT_ENCODING_MS_BIG5 = FT_ENCODING_BIG5 , FT_ENCODING_MS_WANSUNG = FT_ENCODING_WANSUNG , FT_ENCODING_MS_JOHAB = FT_ENCODING_JOHAB , FT_ENC_TAG ( FT_ENCODING_ADOBE_STANDARD , 'A', 'D', 'O', 'B' ), FT_ENC_TAG ( FT_ENCODING_ADOBE_EXPERT , 'A', 'D', 'B', 'E' ), FT_ENC_TAG ( FT_ENCODING_ADOBE_CUSTOM , 'A', 'D', 'B', 'C' ), FT_ENC_TAG ( FT_ENCODING_ADOBE_LATIN_1 , 'l', 'a', 't', '1' ), FT_ENC_TAG ( FT_ENCODING_OLD_LATIN_2 , 'l', 'a', 't', '2' ), FT_ENC_TAG ( FT_ENCODING_APPLE_ROMAN , 'a', 'r', 'm', 'n' ) } FT_Encoding ; /* these constants are deprecated; use the corresponding ` FT_Encoding ` */ /* values instead */ # define ft_encoding_none FT_ENCODING_NONE # define ft_encoding_unicode FT_ENCODING_UNICODE # define ft_encoding_symbol FT_ENCODING_MS_SYMBOL # define ft_encoding_latin_1 FT_ENCODING_ADOBE_LATIN_1 # define ft_encoding_latin_2 FT_ENCODING_OLD_LATIN_2 # define ft_encoding_sjis FT_ENCODING_SJIS # define ft_encoding_gb2312 FT_ENCODING_PRC # define ft_encoding_big5 FT_ENCODING_BIG5 # define ft_encoding_wansung FT_ENCODING_WANSUNG # define ft_encoding_johab FT_ENCODING_JOHAB # define ft_encoding_adobe_standard FT_ENCODING_ADOBE_STANDARD # define ft_encoding_adobe_expert FT_ENCODING_ADOBE_EXPERT # define ft_encoding_adobe_custom FT_ENCODING_ADOBE_CUSTOM # define ft_encoding_apple_roman FT_ENCODING_APPLE_ROMAN An enumeration to specify character sets supported by charmaps. Used in the FT_Select_Charmap API function.","title":"FT_Encoding"},{"location":"ft2-character_mapping.html#ft_enc_tag","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # ifndef FT_ENC_TAG # define FT_ENC_TAG ( value, a, b, c, d ) \\ value = ( ( FT_STATIC_BYTE_CAST( FT_UInt32 , a ) << 24 ) | \\ ( FT_STATIC_BYTE_CAST( FT_UInt32 , b ) << 16 ) | \\ ( FT_STATIC_BYTE_CAST( FT_UInt32 , c ) << 8 ) | \\ FT_STATIC_BYTE_CAST( FT_UInt32 , d ) ) # endif /* FT_ENC_TAG */ This macro converts four-letter tags into an unsigned long. It is used to define \u2018encoding\u2019 identifiers (see FT_Encoding ).","title":"FT_ENC_TAG"},{"location":"ft2-character_mapping.html#ft_select_charmap","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Select_Charmap ( FT_Face face, FT_Encoding encoding ); Select a given charmap by its encoding tag (as listed in freetype.h ).","title":"FT_Select_Charmap"},{"location":"ft2-character_mapping.html#ft_set_charmap","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Set_Charmap ( FT_Face face, FT_CharMap charmap ); Select a given charmap for character code to glyph index mapping.","title":"FT_Set_Charmap"},{"location":"ft2-character_mapping.html#ft_get_charmap_index","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Int ) FT_Get_Charmap_Index ( FT_CharMap charmap ); Retrieve index of a given charmap.","title":"FT_Get_Charmap_Index"},{"location":"ft2-character_mapping.html#ft_get_char_index","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt ) FT_Get_Char_Index ( FT_Face face, FT_ULong charcode ); Return the glyph index of a given character code. This function uses the currently selected charmap to do the mapping.","title":"FT_Get_Char_Index"},{"location":"ft2-character_mapping.html#ft_get_first_char","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_ULong ) FT_Get_First_Char ( FT_Face face, FT_UInt *agindex ); Return the first character code in the current charmap of a given face, together with its corresponding glyph index.","title":"FT_Get_First_Char"},{"location":"ft2-character_mapping.html#ft_get_next_char","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_ULong ) FT_Get_Next_Char ( FT_Face face, FT_ULong char_code, FT_UInt *agindex ); Return the next character code in the current charmap of a given face following the value char_code , as well as the corresponding glyph index.","title":"FT_Get_Next_Char"},{"location":"ft2-character_mapping.html#ft_load_char","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Load_Char ( FT_Face face, FT_ULong char_code, FT_Int32 load_flags ); Load a glyph into the glyph slot of a face object, accessed by its character code.","title":"FT_Load_Char"},{"location":"ft2-cid_fonts.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb CID Fonts CID Fonts \u00b6 Synopsis \u00b6 This section contains the declaration of CID-keyed font-specific functions. FT_Get_CID_Registry_Ordering_Supplement \u00b6 Defined in FT_CID_H (freetype/ftcid.h). FT_EXPORT( FT_Error ) FT_Get_CID_Registry_Ordering_Supplement ( FT_Face face, const char * *registry, const char * *ordering, FT_Int *supplement ); Retrieve the Registry/Ordering/Supplement triple (also known as the \"R/O/S\") from a CID-keyed font. input face A handle to the input face. output registry The registry, as a C string, owned by the face. ordering The ordering, as a C string, owned by the face. supplement The supplement. return FreeType error code. 0 means success. note This function only works with CID faces, returning an error otherwise. since 2.3.6 FT_Get_CID_Is_Internally_CID_Keyed \u00b6 Defined in FT_CID_H (freetype/ftcid.h). FT_EXPORT( FT_Error ) FT_Get_CID_Is_Internally_CID_Keyed ( FT_Face face, FT_Bool *is_cid ); Retrieve the type of the input face, CID keyed or not. In contrast to the FT_IS_CID_KEYED macro this function returns successfully also for CID-keyed fonts in an SFNT wrapper. input face A handle to the input face. output is_cid The type of the face as an FT_Bool . return FreeType error code. 0 means success. note This function only works with CID faces and OpenType fonts, returning an error otherwise. since 2.3.9 FT_Get_CID_From_Glyph_Index \u00b6 Defined in FT_CID_H (freetype/ftcid.h). FT_EXPORT( FT_Error ) FT_Get_CID_From_Glyph_Index ( FT_Face face, FT_UInt glyph_index, FT_UInt *cid ); Retrieve the CID of the input glyph index. input face A handle to the input face. glyph_index The input glyph index. output cid The CID as an FT_UInt . return FreeType error code. 0 means success. note This function only works with CID faces and OpenType fonts, returning an error otherwise. since 2.3.9","title":"CID Fonts"},{"location":"ft2-cid_fonts.html#cid-fonts","text":"","title":"CID Fonts"},{"location":"ft2-cid_fonts.html#synopsis","text":"This section contains the declaration of CID-keyed font-specific functions.","title":"Synopsis"},{"location":"ft2-cid_fonts.html#ft_get_cid_registry_ordering_supplement","text":"Defined in FT_CID_H (freetype/ftcid.h). FT_EXPORT( FT_Error ) FT_Get_CID_Registry_Ordering_Supplement ( FT_Face face, const char * *registry, const char * *ordering, FT_Int *supplement ); Retrieve the Registry/Ordering/Supplement triple (also known as the \"R/O/S\") from a CID-keyed font.","title":"FT_Get_CID_Registry_Ordering_Supplement"},{"location":"ft2-cid_fonts.html#ft_get_cid_is_internally_cid_keyed","text":"Defined in FT_CID_H (freetype/ftcid.h). FT_EXPORT( FT_Error ) FT_Get_CID_Is_Internally_CID_Keyed ( FT_Face face, FT_Bool *is_cid ); Retrieve the type of the input face, CID keyed or not. In contrast to the FT_IS_CID_KEYED macro this function returns successfully also for CID-keyed fonts in an SFNT wrapper.","title":"FT_Get_CID_Is_Internally_CID_Keyed"},{"location":"ft2-cid_fonts.html#ft_get_cid_from_glyph_index","text":"Defined in FT_CID_H (freetype/ftcid.h). FT_EXPORT( FT_Error ) FT_Get_CID_From_Glyph_Index ( FT_Face face, FT_UInt glyph_index, FT_UInt *cid ); Retrieve the CID of the input glyph index.","title":"FT_Get_CID_From_Glyph_Index"},{"location":"ft2-color_management.html","text":"FreeType \u00bb Docs \u00bb Extended API \u00bb Glyph Color Management Glyph Color Management \u00b6 Synopsis \u00b6 The functions described here allow access and manipulation of color palette entries in OpenType's \u2018CPAL\u2019 tables. FT_Color \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_Color_ { FT_Byte blue; FT_Byte green; FT_Byte red; FT_Byte alpha; } FT_Color ; This structure models a BGRA color value of a \u2018CPAL\u2019 palette entry. The used color space is sRGB; the colors are not pre-multiplied, and alpha values must be explicitly set. fields blue Blue value. green Green value. red Red value. alpha Alpha value, giving the red, green, and blue color's opacity. since 2.10 FT_PALETTE_XXX \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). # define FT_PALETTE_FOR_LIGHT_BACKGROUND 0x01 # define FT_PALETTE_FOR_DARK_BACKGROUND 0x02 A list of bit field constants used in the palette_flags array of the FT_Palette_Data structure to indicate for which background a palette with a given index is usable. values FT_PALETTE_FOR_LIGHT_BACKGROUND The palette is appropriate to use when displaying the font on a light background such as white. FT_PALETTE_FOR_DARK_BACKGROUND The palette is appropriate to use when displaying the font on a dark background such as black. since 2.10 FT_Palette_Data \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_Palette_Data_ { FT_UShort num_palettes; const FT_UShort * palette_name_ids; const FT_UShort * palette_flags; FT_UShort num_palette_entries; const FT_UShort * palette_entry_name_ids; } FT_Palette_Data ; This structure holds the data of the \u2018CPAL\u2019 table. fields num_palettes The number of palettes. palette_name_ids An optional read-only array of palette name IDs with num_palettes elements, corresponding to entries like \u2018dark\u2019 or \u2018light\u2019 in the font's \u2018name\u2019 table. An empty name ID in the \u2018CPAL\u2019 table gets represented as value 0xFFFF. NULL if the font's \u2018CPAL\u2019 table doesn't contain appropriate data. palette_flags An optional read-only array of palette flags with num_palettes elements. Possible values are an ORed combination of FT_PALETTE_FOR_LIGHT_BACKGROUND and FT_PALETTE_FOR_DARK_BACKGROUND . NULL if the font's \u2018CPAL\u2019 table doesn't contain appropriate data. num_palette_entries The number of entries in a single palette. All palettes have the same size. palette_entry_name_ids An optional read-only array of palette entry name IDs with num_palette_entries . In each palette, entries with the same index have the same function. For example, index 0 might correspond to string \u2018outline\u2019 in the font's \u2018name\u2019 table to indicate that this palette entry is used for outlines, index 1 might correspond to \u2018fill\u2019 to indicate the filling color palette entry, etc. An empty entry name ID in the \u2018CPAL\u2019 table gets represented as value 0xFFFF. NULL if the font's \u2018CPAL\u2019 table doesn't contain appropriate data. note Use function FT_Get_Sfnt_Name to map name IDs and entry name IDs to name strings. Use function FT_Palette_Select to get the colors associated with a palette entry. since 2.10 FT_Palette_Data_Get \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Error ) FT_Palette_Data_Get ( FT_Face face, FT_Palette_Data *apalette ); Retrieve the face's color palette data. input face The source face handle. output apalette A pointer to an FT_Palette_Data structure. return FreeType error code. 0 means success. note All arrays in the returned FT_Palette_Data structure are read-only. This function always returns an error if the config macro TT_CONFIG_OPTION_COLOR_LAYERS is not defined in ftoption.h . since 2.10 FT_Palette_Select \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Error ) FT_Palette_Select ( FT_Face face, FT_UShort palette_index, FT_Color * *apalette ); This function has two purposes. (1) It activates a palette for rendering color glyphs, and (2) it retrieves all (unmodified) color entries of this palette. This function returns a read-write array, which means that a calling application can modify the palette entries on demand. A corollary of (2) is that calling the function, then modifying some values, then calling the function again with the same arguments resets all color entries to the original \u2018CPAL\u2019 values; all user modifications are lost. input face The source face handle. palette_index The palette index. output apalette An array of color entries for a palette with index palette_index , having num_palette_entries elements (as found in the FT_Palette_Data structure). If apalette is set to NULL , no array gets returned (and no color entries can be modified). In case the font doesn't support color palettes, NULL is returned. return FreeType error code. 0 means success. note The array pointed to by apalette_entries is owned and managed by FreeType. This function always returns an error if the config macro TT_CONFIG_OPTION_COLOR_LAYERS is not defined in ftoption.h . since 2.10 FT_Palette_Set_Foreground_Color \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Error ) FT_Palette_Set_Foreground_Color ( FT_Face face, FT_Color foreground_color ); \u2018COLR\u2019 uses palette index 0xFFFF to indicate a \u2018text foreground color\u2019. This function sets this value. input face The source face handle. foreground_color An FT_Color structure to define the text foreground color. return FreeType error code. 0 means success. note If this function isn't called, the text foreground color is set to white opaque (BGRA value 0xFFFFFFFF) if FT_PALETTE_FOR_DARK_BACKGROUND is present for the current palette, and black opaque (BGRA value 0x000000FF) otherwise, including the case that no palette types are available in the \u2018CPAL\u2019 table. This function always returns an error if the config macro TT_CONFIG_OPTION_COLOR_LAYERS is not defined in ftoption.h . since 2.10","title":"Glyph Color Management"},{"location":"ft2-color_management.html#glyph-color-management","text":"","title":"Glyph Color Management"},{"location":"ft2-color_management.html#synopsis","text":"The functions described here allow access and manipulation of color palette entries in OpenType's \u2018CPAL\u2019 tables.","title":"Synopsis"},{"location":"ft2-color_management.html#ft_color","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_Color_ { FT_Byte blue; FT_Byte green; FT_Byte red; FT_Byte alpha; } FT_Color ; This structure models a BGRA color value of a \u2018CPAL\u2019 palette entry. The used color space is sRGB; the colors are not pre-multiplied, and alpha values must be explicitly set.","title":"FT_Color"},{"location":"ft2-color_management.html#ft_palette_xxx","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). # define FT_PALETTE_FOR_LIGHT_BACKGROUND 0x01 # define FT_PALETTE_FOR_DARK_BACKGROUND 0x02 A list of bit field constants used in the palette_flags array of the FT_Palette_Data structure to indicate for which background a palette with a given index is usable.","title":"FT_PALETTE_XXX"},{"location":"ft2-color_management.html#ft_palette_data","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_Palette_Data_ { FT_UShort num_palettes; const FT_UShort * palette_name_ids; const FT_UShort * palette_flags; FT_UShort num_palette_entries; const FT_UShort * palette_entry_name_ids; } FT_Palette_Data ; This structure holds the data of the \u2018CPAL\u2019 table.","title":"FT_Palette_Data"},{"location":"ft2-color_management.html#ft_palette_data_get","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Error ) FT_Palette_Data_Get ( FT_Face face, FT_Palette_Data *apalette ); Retrieve the face's color palette data.","title":"FT_Palette_Data_Get"},{"location":"ft2-color_management.html#ft_palette_select","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Error ) FT_Palette_Select ( FT_Face face, FT_UShort palette_index, FT_Color * *apalette ); This function has two purposes. (1) It activates a palette for rendering color glyphs, and (2) it retrieves all (unmodified) color entries of this palette. This function returns a read-write array, which means that a calling application can modify the palette entries on demand. A corollary of (2) is that calling the function, then modifying some values, then calling the function again with the same arguments resets all color entries to the original \u2018CPAL\u2019 values; all user modifications are lost.","title":"FT_Palette_Select"},{"location":"ft2-color_management.html#ft_palette_set_foreground_color","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Error ) FT_Palette_Set_Foreground_Color ( FT_Face face, FT_Color foreground_color ); \u2018COLR\u2019 uses palette index 0xFFFF to indicate a \u2018text foreground color\u2019. This function sets this value.","title":"FT_Palette_Set_Foreground_Color"},{"location":"ft2-computations.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb Computations Computations \u00b6 Synopsis \u00b6 This section contains various functions used to perform computations on 16.16 fixed-point numbers or 2D vectors. FreeType does not use floating-point data types. Attention : Most arithmetic functions take FT_Long as arguments. For historical reasons, FreeType was designed under the assumption that FT_Long is a 32-bit integer; results can thus be undefined if the arguments don't fit into 32 bits. FT_MulDiv \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Long ) FT_MulDiv ( FT_Long a, FT_Long b, FT_Long c ); Compute (a*b)/c with maximum accuracy, using a 64-bit intermediate integer whenever necessary. This function isn't necessarily as fast as some processor-specific operations, but is at least completely portable. input a The first multiplier. b The second multiplier. c The divisor. return The result of (a*b)/c . This function never traps when trying to divide by zero; it simply returns \u2018MaxInt\u2019 or \u2018MinInt\u2019 depending on the signs of a and b . FT_MulFix \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Long ) FT_MulFix ( FT_Long a, FT_Long b ); Compute (a*b)/0x10000 with maximum accuracy. Its main use is to multiply a given value by a 16.16 fixed-point factor. input a The first multiplier. b The second multiplier. Use a 16.16 factor here whenever possible (see note below). return The result of (a*b)/0x10000 . note This function has been optimized for the case where the absolute value of a is less than 2048, and b is a 16.16 scaling factor. As this happens mainly when scaling from notional units to fractional pixels in FreeType, it resulted in noticeable speed improvements between versions 2.x and 1.x. As a conclusion, always try to place a 16.16 factor as the second argument of this function; this can make a great difference. FT_DivFix \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Long ) FT_DivFix ( FT_Long a, FT_Long b ); Compute (a*0x10000)/b with maximum accuracy. Its main use is to divide a given value by a 16.16 fixed-point factor. input a The numerator. b The denominator. Use a 16.16 factor here. return The result of (a*0x10000)/b . FT_RoundFix \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Fixed ) FT_RoundFix ( FT_Fixed a ); Round a 16.16 fixed number. input a The number to be rounded. return a rounded to the nearest 16.16 fixed integer, halfway cases away from zero. note The function uses wrap-around arithmetic. FT_CeilFix \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Fixed ) FT_CeilFix ( FT_Fixed a ); Compute the smallest following integer of a 16.16 fixed number. input a The number for which the ceiling function is to be computed. return a rounded towards plus infinity. note The function uses wrap-around arithmetic. FT_FloorFix \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Fixed ) FT_FloorFix ( FT_Fixed a ); Compute the largest previous integer of a 16.16 fixed number. input a The number for which the floor function is to be computed. return a rounded towards minus infinity. FT_Vector_Transform \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( void ) FT_Vector_Transform ( FT_Vector * vector, const FT_Matrix * matrix ); Transform a single vector through a 2x2 matrix. inout vector The target vector to transform. input matrix A pointer to the source 2x2 matrix. note The result is undefined if either vector or matrix is invalid. FT_Matrix_Multiply \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( void ) FT_Matrix_Multiply ( const FT_Matrix * a, FT_Matrix * b ); Perform the matrix operation b = a*b . input a A pointer to matrix a . inout b A pointer to matrix b . note The result is undefined if either a or b is zero. Since the function uses wrap-around arithmetic, results become meaningless if the arguments are very large. FT_Matrix_Invert \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Matrix_Invert ( FT_Matrix * matrix ); Invert a 2x2 matrix. Return an error if it can't be inverted. inout matrix A pointer to the target matrix. Remains untouched in case of error. return FreeType error code. 0 means success. FT_Angle \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). typedef FT_Fixed FT_Angle ; This type is used to model angle values in FreeType. Note that the angle is a 16.16 fixed-point value expressed in degrees. FT_ANGLE_PI \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). # define FT_ANGLE_PI ( 180L << 16 ) The angle pi expressed in FT_Angle units. FT_ANGLE_2PI \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). # define FT_ANGLE_2PI ( FT_ANGLE_PI * 2 ) The angle 2*pi expressed in FT_Angle units. FT_ANGLE_PI2 \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). # define FT_ANGLE_PI2 ( FT_ANGLE_PI / 2 ) The angle pi/2 expressed in FT_Angle units. FT_ANGLE_PI4 \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). # define FT_ANGLE_PI4 ( FT_ANGLE_PI / 4 ) The angle pi/4 expressed in FT_Angle units. FT_Sin \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Fixed ) FT_Sin ( FT_Angle angle ); Return the sinus of a given angle in fixed-point format. input angle The input angle. return The sinus value. note If you need both the sinus and cosinus for a given angle, use the function FT_Vector_Unit . FT_Cos \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Fixed ) FT_Cos ( FT_Angle angle ); Return the cosinus of a given angle in fixed-point format. input angle The input angle. return The cosinus value. note If you need both the sinus and cosinus for a given angle, use the function FT_Vector_Unit . FT_Tan \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Fixed ) FT_Tan ( FT_Angle angle ); Return the tangent of a given angle in fixed-point format. input angle The input angle. return The tangent value. FT_Atan2 \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Angle ) FT_Atan2 ( FT_Fixed x, FT_Fixed y ); Return the arc-tangent corresponding to a given vector (x,y) in the 2d plane. input x The horizontal vector coordinate. y The vertical vector coordinate. return The arc-tangent value (i.e. angle). FT_Angle_Diff \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Angle ) FT_Angle_Diff ( FT_Angle angle1, FT_Angle angle2 ); Return the difference between two angles. The result is always constrained to the ]-PI..PI] interval. input angle1 First angle. angle2 Second angle. return Constrained value of angle2-angle1 . FT_Vector_Unit \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( void ) FT_Vector_Unit ( FT_Vector * vec, FT_Angle angle ); Return the unit vector corresponding to a given angle. After the call, the value of vec.x will be cos(angle) , and the value of vec.y will be sin(angle) . This function is useful to retrieve both the sinus and cosinus of a given angle quickly. output vec The address of target vector. input angle The input angle. FT_Vector_Rotate \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( void ) FT_Vector_Rotate ( FT_Vector * vec, FT_Angle angle ); Rotate a vector by a given angle. inout vec The address of target vector. input angle The input angle. FT_Vector_Length \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Fixed ) FT_Vector_Length ( FT_Vector * vec ); Return the length of a given vector. input vec The address of target vector. return The vector length, expressed in the same units that the original vector coordinates. FT_Vector_Polarize \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( void ) FT_Vector_Polarize ( FT_Vector * vec, FT_Fixed *length, FT_Angle *angle ); Compute both the length and angle of a given vector. input vec The address of source vector. output length The vector length. angle The vector angle. FT_Vector_From_Polar \u00b6 Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( void ) FT_Vector_From_Polar ( FT_Vector * vec, FT_Fixed length, FT_Angle angle ); Compute vector coordinates from a length and angle. output vec The address of source vector. input length The vector length. angle The vector angle.","title":"Computations"},{"location":"ft2-computations.html#computations","text":"","title":"Computations"},{"location":"ft2-computations.html#synopsis","text":"This section contains various functions used to perform computations on 16.16 fixed-point numbers or 2D vectors. FreeType does not use floating-point data types. Attention : Most arithmetic functions take FT_Long as arguments. For historical reasons, FreeType was designed under the assumption that FT_Long is a 32-bit integer; results can thus be undefined if the arguments don't fit into 32 bits.","title":"Synopsis"},{"location":"ft2-computations.html#ft_muldiv","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Long ) FT_MulDiv ( FT_Long a, FT_Long b, FT_Long c ); Compute (a*b)/c with maximum accuracy, using a 64-bit intermediate integer whenever necessary. This function isn't necessarily as fast as some processor-specific operations, but is at least completely portable.","title":"FT_MulDiv"},{"location":"ft2-computations.html#ft_mulfix","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Long ) FT_MulFix ( FT_Long a, FT_Long b ); Compute (a*b)/0x10000 with maximum accuracy. Its main use is to multiply a given value by a 16.16 fixed-point factor.","title":"FT_MulFix"},{"location":"ft2-computations.html#ft_divfix","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Long ) FT_DivFix ( FT_Long a, FT_Long b ); Compute (a*0x10000)/b with maximum accuracy. Its main use is to divide a given value by a 16.16 fixed-point factor.","title":"FT_DivFix"},{"location":"ft2-computations.html#ft_roundfix","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Fixed ) FT_RoundFix ( FT_Fixed a ); Round a 16.16 fixed number.","title":"FT_RoundFix"},{"location":"ft2-computations.html#ft_ceilfix","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Fixed ) FT_CeilFix ( FT_Fixed a ); Compute the smallest following integer of a 16.16 fixed number.","title":"FT_CeilFix"},{"location":"ft2-computations.html#ft_floorfix","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Fixed ) FT_FloorFix ( FT_Fixed a ); Compute the largest previous integer of a 16.16 fixed number.","title":"FT_FloorFix"},{"location":"ft2-computations.html#ft_vector_transform","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( void ) FT_Vector_Transform ( FT_Vector * vector, const FT_Matrix * matrix ); Transform a single vector through a 2x2 matrix.","title":"FT_Vector_Transform"},{"location":"ft2-computations.html#ft_matrix_multiply","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( void ) FT_Matrix_Multiply ( const FT_Matrix * a, FT_Matrix * b ); Perform the matrix operation b = a*b .","title":"FT_Matrix_Multiply"},{"location":"ft2-computations.html#ft_matrix_invert","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Matrix_Invert ( FT_Matrix * matrix ); Invert a 2x2 matrix. Return an error if it can't be inverted.","title":"FT_Matrix_Invert"},{"location":"ft2-computations.html#ft_angle","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). typedef FT_Fixed FT_Angle ; This type is used to model angle values in FreeType. Note that the angle is a 16.16 fixed-point value expressed in degrees.","title":"FT_Angle"},{"location":"ft2-computations.html#ft_angle_pi","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). # define FT_ANGLE_PI ( 180L << 16 ) The angle pi expressed in FT_Angle units.","title":"FT_ANGLE_PI"},{"location":"ft2-computations.html#ft_angle_2pi","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). # define FT_ANGLE_2PI ( FT_ANGLE_PI * 2 ) The angle 2*pi expressed in FT_Angle units.","title":"FT_ANGLE_2PI"},{"location":"ft2-computations.html#ft_angle_pi2","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). # define FT_ANGLE_PI2 ( FT_ANGLE_PI / 2 ) The angle pi/2 expressed in FT_Angle units.","title":"FT_ANGLE_PI2"},{"location":"ft2-computations.html#ft_angle_pi4","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). # define FT_ANGLE_PI4 ( FT_ANGLE_PI / 4 ) The angle pi/4 expressed in FT_Angle units.","title":"FT_ANGLE_PI4"},{"location":"ft2-computations.html#ft_sin","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Fixed ) FT_Sin ( FT_Angle angle ); Return the sinus of a given angle in fixed-point format.","title":"FT_Sin"},{"location":"ft2-computations.html#ft_cos","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Fixed ) FT_Cos ( FT_Angle angle ); Return the cosinus of a given angle in fixed-point format.","title":"FT_Cos"},{"location":"ft2-computations.html#ft_tan","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Fixed ) FT_Tan ( FT_Angle angle ); Return the tangent of a given angle in fixed-point format.","title":"FT_Tan"},{"location":"ft2-computations.html#ft_atan2","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Angle ) FT_Atan2 ( FT_Fixed x, FT_Fixed y ); Return the arc-tangent corresponding to a given vector (x,y) in the 2d plane.","title":"FT_Atan2"},{"location":"ft2-computations.html#ft_angle_diff","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Angle ) FT_Angle_Diff ( FT_Angle angle1, FT_Angle angle2 ); Return the difference between two angles. The result is always constrained to the ]-PI..PI] interval.","title":"FT_Angle_Diff"},{"location":"ft2-computations.html#ft_vector_unit","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( void ) FT_Vector_Unit ( FT_Vector * vec, FT_Angle angle ); Return the unit vector corresponding to a given angle. After the call, the value of vec.x will be cos(angle) , and the value of vec.y will be sin(angle) . This function is useful to retrieve both the sinus and cosinus of a given angle quickly.","title":"FT_Vector_Unit"},{"location":"ft2-computations.html#ft_vector_rotate","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( void ) FT_Vector_Rotate ( FT_Vector * vec, FT_Angle angle ); Rotate a vector by a given angle.","title":"FT_Vector_Rotate"},{"location":"ft2-computations.html#ft_vector_length","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( FT_Fixed ) FT_Vector_Length ( FT_Vector * vec ); Return the length of a given vector.","title":"FT_Vector_Length"},{"location":"ft2-computations.html#ft_vector_polarize","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( void ) FT_Vector_Polarize ( FT_Vector * vec, FT_Fixed *length, FT_Angle *angle ); Compute both the length and angle of a given vector.","title":"FT_Vector_Polarize"},{"location":"ft2-computations.html#ft_vector_from_polar","text":"Defined in FT_TRIGONOMETRY_H (freetype/fttrigon.h). FT_EXPORT( void ) FT_Vector_From_Polar ( FT_Vector * vec, FT_Fixed length, FT_Angle angle ); Compute vector coordinates from a length and angle.","title":"FT_Vector_From_Polar"},{"location":"ft2-debugging_apis.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb External Debugging APIs External Debugging APIs \u00b6 Synopsis \u00b6 This section contains the declarations of public functions that enables fine control of what the FT_DEBUG_LOGGING macro outputs. FT_Trace_Set_Level \u00b6 FT_EXPORT( void ) FT_Trace_Set_Level ( const char * tracing_level ); Change the levels of tracing components of FreeType at run time. input tracing_level New tracing value. example The following call makes FreeType trace everything but the \u2018memory\u2019 component. FT_Trace_Set_Level( \"any:7 memory:0\" ); note This function does nothing if compilation option FT_DEBUG_LOGGING isn't set. since 2.11 FT_Trace_Set_Default_Level \u00b6 FT_EXPORT( void ) FT_Trace_Set_Default_Level ( void ); Reset tracing value of FreeType's components to the default value (i.e., to the value of the FT2_DEBUG environment value or to NULL if FT2_DEBUG is not set). note This function does nothing if compilation option FT_DEBUG_LOGGING isn't set. since 2.11 FT_Custom_Log_Handler \u00b6 typedef void (* FT_Custom_Log_Handler )( const char * ft_component, const char * fmt, va_list args ); A function typedef that is used to handle the logging of tracing and debug messages on a file system. input ft_component The name of FT_COMPONENT from which the current debug or error message is produced. fmt Actual debug or tracing message. args Arguments of debug or tracing messages. since 2.11 FT_Set_Log_Handler \u00b6 FT_EXPORT( void ) FT_Set_Log_Handler ( FT_Custom_Log_Handler handler ); A function to set a custom log handler. input handler New logging function. note This function does nothing if compilation option FT_DEBUG_LOGGING isn't set. since 2.11 FT_Set_Default_Log_Handler \u00b6 FT_EXPORT( void ) FT_Set_Default_Log_Handler ( void ); A function to undo the effect of FT_Set_Log_Handler , resetting the log handler to FreeType's built-in version. note This function does nothing if compilation option FT_DEBUG_LOGGING isn't set. since 2.11","title":"External Debugging APIs"},{"location":"ft2-debugging_apis.html#external-debugging-apis","text":"","title":"External Debugging APIs"},{"location":"ft2-debugging_apis.html#synopsis","text":"This section contains the declarations of public functions that enables fine control of what the FT_DEBUG_LOGGING macro outputs.","title":"Synopsis"},{"location":"ft2-debugging_apis.html#ft_trace_set_level","text":"FT_EXPORT( void ) FT_Trace_Set_Level ( const char * tracing_level ); Change the levels of tracing components of FreeType at run time.","title":"FT_Trace_Set_Level"},{"location":"ft2-debugging_apis.html#ft_trace_set_default_level","text":"FT_EXPORT( void ) FT_Trace_Set_Default_Level ( void ); Reset tracing value of FreeType's components to the default value (i.e., to the value of the FT2_DEBUG environment value or to NULL if FT2_DEBUG is not set).","title":"FT_Trace_Set_Default_Level"},{"location":"ft2-debugging_apis.html#ft_custom_log_handler","text":"typedef void (* FT_Custom_Log_Handler )( const char * ft_component, const char * fmt, va_list args ); A function typedef that is used to handle the logging of tracing and debug messages on a file system.","title":"FT_Custom_Log_Handler"},{"location":"ft2-debugging_apis.html#ft_set_log_handler","text":"FT_EXPORT( void ) FT_Set_Log_Handler ( FT_Custom_Log_Handler handler ); A function to set a custom log handler.","title":"FT_Set_Log_Handler"},{"location":"ft2-debugging_apis.html#ft_set_default_log_handler","text":"FT_EXPORT( void ) FT_Set_Default_Log_Handler ( void ); A function to undo the effect of FT_Set_Log_Handler , resetting the log handler to FreeType's built-in version.","title":"FT_Set_Default_Log_Handler"},{"location":"ft2-error_code_values.html","text":"FreeType \u00bb Docs \u00bb Error Codes \u00bb Error Code Values Error Code Values \u00b6 Synopsis \u00b6 The list below is taken verbatim from the file fterrdef.h (loaded automatically by including FT_FREETYPE_H ). The first argument of the FT_ERROR_DEF_ macro is the error label; by default, the prefix FT_Err_ gets added so that you get error names like FT_Err_Cannot_Open_Resource . The second argument is the error code, and the last argument an error string, which is not used by FreeType. Within your application you should only use error names and never its numeric values! The latter might (and actually do) change in forthcoming FreeType versions. Macro FT_NOERRORDEF_ defines FT_Err_Ok , which is always zero. See the \u2018Error Enumerations\u2019 subsection how to automatically generate a list of error strings. FT_Err_XXX \u00b6 /* generic errors */ FT_NOERRORDEF_( Ok, 0x00, \"no error\" ) FT_ERRORDEF_( Cannot_Open_Resource, 0x01, \"cannot open resource\" ) FT_ERRORDEF_( Unknown_File_Format, 0x02, \"unknown file format\" ) FT_ERRORDEF_( Invalid_File_Format, 0x03, \"broken file\" ) FT_ERRORDEF_( Invalid_Version, 0x04, \"invalid FreeType version\" ) FT_ERRORDEF_( Lower_Module_Version, 0x05, \"module version is too low\" ) FT_ERRORDEF_( Invalid_Argument, 0x06, \"invalid argument\" ) FT_ERRORDEF_( Unimplemented_Feature, 0x07, \"unimplemented feature\" ) FT_ERRORDEF_( Invalid_Table, 0x08, \"broken table\" ) FT_ERRORDEF_( Invalid_Offset, 0x09, \"broken offset within table\" ) FT_ERRORDEF_( Array_Too_Large, 0x0A, \"array allocation size too large\" ) FT_ERRORDEF_( Missing_Module, 0x0B, \"missing module\" ) FT_ERRORDEF_( Missing_Property, 0x0C, \"missing property\" ) /* glyph/character errors */ FT_ERRORDEF_( Invalid_Glyph_Index, 0x10, \"invalid glyph index\" ) FT_ERRORDEF_( Invalid_Character_Code, 0x11, \"invalid character code\" ) FT_ERRORDEF_( Invalid_Glyph_Format, 0x12, \"unsupported glyph image format\" ) FT_ERRORDEF_( Cannot_Render_Glyph, 0x13, \"cannot render this glyph format\" ) FT_ERRORDEF_( Invalid_Outline, 0x14, \"invalid outline\" ) FT_ERRORDEF_( Invalid_Composite, 0x15, \"invalid composite glyph\" ) FT_ERRORDEF_( Too_Many_Hints, 0x16, \"too many hints\" ) FT_ERRORDEF_( Invalid_Pixel_Size, 0x17, \"invalid pixel size\" ) FT_ERRORDEF_( Invalid_SVG_Document, 0x18, \"invalid SVG document\" ) /* handle errors */ FT_ERRORDEF_( Invalid_Handle, 0x20, \"invalid object handle\" ) FT_ERRORDEF_( Invalid_Library_Handle, 0x21, \"invalid library handle\" ) FT_ERRORDEF_( Invalid_Driver_Handle, 0x22, \"invalid module handle\" ) FT_ERRORDEF_( Invalid_Face_Handle, 0x23, \"invalid face handle\" ) FT_ERRORDEF_( Invalid_Size_Handle, 0x24, \"invalid size handle\" ) FT_ERRORDEF_( Invalid_Slot_Handle, 0x25, \"invalid glyph slot handle\" ) FT_ERRORDEF_( Invalid_CharMap_Handle, 0x26, \"invalid charmap handle\" ) FT_ERRORDEF_( Invalid_Cache_Handle, 0x27, \"invalid cache manager handle\" ) FT_ERRORDEF_( Invalid_Stream_Handle, 0x28, \"invalid stream handle\" ) /* driver errors */ FT_ERRORDEF_( Too_Many_Drivers, 0x30, \"too many modules\" ) FT_ERRORDEF_( Too_Many_Extensions, 0x31, \"too many extensions\" ) /* memory errors */ FT_ERRORDEF_( Out_Of_Memory, 0x40, \"out of memory\" ) FT_ERRORDEF_( Unlisted_Object, 0x41, \"unlisted object\" ) /* stream errors */ FT_ERRORDEF_( Cannot_Open_Stream, 0x51, \"cannot open stream\" ) FT_ERRORDEF_( Invalid_Stream_Seek, 0x52, \"invalid stream seek\" ) FT_ERRORDEF_( Invalid_Stream_Skip, 0x53, \"invalid stream skip\" ) FT_ERRORDEF_( Invalid_Stream_Read, 0x54, \"invalid stream read\" ) FT_ERRORDEF_( Invalid_Stream_Operation, 0x55, \"invalid stream operation\" ) FT_ERRORDEF_( Invalid_Frame_Operation, 0x56, \"invalid frame operation\" ) FT_ERRORDEF_( Nested_Frame_Access, 0x57, \"nested frame access\" ) FT_ERRORDEF_( Invalid_Frame_Read, 0x58, \"invalid frame read\" ) /* raster errors */ FT_ERRORDEF_( Raster_Uninitialized, 0x60, \"raster uninitialized\" ) FT_ERRORDEF_( Raster_Corrupted, 0x61, \"raster corrupted\" ) FT_ERRORDEF_( Raster_Overflow, 0x62, \"raster overflow\" ) FT_ERRORDEF_( Raster_Negative_Height, 0x63, \"negative height while rastering\" ) /* cache errors */ FT_ERRORDEF_( Too_Many_Caches, 0x70, \"too many registered caches\" ) /* TrueType and SFNT errors */ FT_ERRORDEF_( Invalid_Opcode, 0x80, \"invalid opcode\" ) FT_ERRORDEF_( Too_Few_Arguments, 0x81, \"too few arguments\" ) FT_ERRORDEF_( Stack_Overflow, 0x82, \"stack overflow\" ) FT_ERRORDEF_( Code_Overflow, 0x83, \"code overflow\" ) FT_ERRORDEF_( Bad_Argument, 0x84, \"bad argument\" ) FT_ERRORDEF_( Divide_By_Zero, 0x85, \"division by zero\" ) FT_ERRORDEF_( Invalid_Reference, 0x86, \"invalid reference\" ) FT_ERRORDEF_( Debug_OpCode, 0x87, \"found debug opcode\" ) FT_ERRORDEF_( ENDF_In_Exec_Stream, 0x88, \"found ENDF opcode in execution stream\" ) FT_ERRORDEF_( Nested_DEFS, 0x89, \"nested DEFS\" ) FT_ERRORDEF_( Invalid_CodeRange, 0x8A, \"invalid code range\" ) FT_ERRORDEF_( Execution_Too_Long, 0x8B, \"execution context too long \" ) FT_ERRORDEF_( Too_Many_Function_Defs, 0x8C, \"too many function definitions\" ) FT_ERRORDEF_( Too_Many_Instruction_Defs, 0x8D, \"too many instruction definitions\" ) FT_ERRORDEF_( Table_Missing, 0x8E, \"SFNT font table missing\" ) FT_ERRORDEF_( Horiz_Header_Missing, 0x8F, \"horizontal header (hhea) table missing\" ) FT_ERRORDEF_( Locations_Missing, 0x90, \"locations (loca) table missing\" ) FT_ERRORDEF_( Name_Table_Missing, 0x91, \"name table missing\" ) FT_ERRORDEF_( CMap_Table_Missing, 0x92, \"character map (cmap) table missing\" ) FT_ERRORDEF_( Hmtx_Table_Missing, 0x93, \"horizontal metrics (hmtx) table missing\" ) FT_ERRORDEF_( Post_Table_Missing, 0x94, \"PostScript (post) table missing\" ) FT_ERRORDEF_( Invalid_Horiz_Metrics, 0x95, \"invalid horizontal metrics\" ) FT_ERRORDEF_( Invalid_CharMap_Format, 0x96, \"invalid character map (cmap) format\" ) FT_ERRORDEF_( Invalid_PPem, 0x97, \"invalid ppem value\" ) FT_ERRORDEF_( Invalid_Vert_Metrics, 0x98, \"invalid vertical metrics\" ) FT_ERRORDEF_( Could_Not_Find_Context, 0x99, \"could not find context\" ) FT_ERRORDEF_( Invalid_Post_Table_Format, 0x9A, \"invalid PostScript (post) table format\" ) FT_ERRORDEF_( Invalid_Post_Table, 0x9B, \"invalid PostScript (post) table\" ) FT_ERRORDEF_( DEF_In_Glyf_Bytecode, 0x9C, \"found FDEF or IDEF opcode in glyf bytecode\" ) FT_ERRORDEF_( Missing_Bitmap, 0x9D, \"missing bitmap in strike\" ) FT_ERRORDEF_( Missing_SVG_Hooks, 0x9E, \"SVG hooks have not been set\" ) /* CFF, CID, and Type 1 errors */ FT_ERRORDEF_( Syntax_Error, 0xA0, \"opcode syntax error\" ) FT_ERRORDEF_( Stack_Underflow, 0xA1, \"argument stack underflow\" ) FT_ERRORDEF_( Ignore, 0xA2, \"ignore\" ) FT_ERRORDEF_( No_Unicode_Glyph_Name, 0xA3, \"no Unicode glyph name found\" ) FT_ERRORDEF_( Glyph_Too_Big, 0xA4, \"glyph too big for hinting\" ) /* BDF errors */ FT_ERRORDEF_( Missing_Startfont_Field, 0xB0, \"`STARTFONT' field missing\" ) FT_ERRORDEF_( Missing_Font_Field, 0xB1, \"`FONT' field missing\" ) FT_ERRORDEF_( Missing_Size_Field, 0xB2, \"`SIZE' field missing\" ) FT_ERRORDEF_( Missing_Fontboundingbox_Field, 0xB3, \"`FONTBOUNDINGBOX' field missing\" ) FT_ERRORDEF_( Missing_Chars_Field, 0xB4, \"`CHARS' field missing\" ) FT_ERRORDEF_( Missing_Startchar_Field, 0xB5, \"`STARTCHAR' field missing\" ) FT_ERRORDEF_( Missing_Encoding_Field, 0xB6, \"`ENCODING' field missing\" ) FT_ERRORDEF_( Missing_Bbx_Field, 0xB7, \"`BBX' field missing\" ) FT_ERRORDEF_( Bbx_Too_Big, 0xB8, \"`BBX' too big\" ) FT_ERRORDEF_( Corrupted_Font_Header, 0xB9, \"Font header corrupted or missing fields\" ) FT_ERRORDEF_( Corrupted_Font_Glyphs, 0xBA, \"Font glyphs corrupted or missing fields\" )","title":"Error Code Values"},{"location":"ft2-error_code_values.html#error-code-values","text":"","title":"Error Code Values"},{"location":"ft2-error_code_values.html#synopsis","text":"The list below is taken verbatim from the file fterrdef.h (loaded automatically by including FT_FREETYPE_H ). The first argument of the FT_ERROR_DEF_ macro is the error label; by default, the prefix FT_Err_ gets added so that you get error names like FT_Err_Cannot_Open_Resource . The second argument is the error code, and the last argument an error string, which is not used by FreeType. Within your application you should only use error names and never its numeric values! The latter might (and actually do) change in forthcoming FreeType versions. Macro FT_NOERRORDEF_ defines FT_Err_Ok , which is always zero. See the \u2018Error Enumerations\u2019 subsection how to automatically generate a list of error strings.","title":"Synopsis"},{"location":"ft2-error_code_values.html#ft_err_xxx","text":"/* generic errors */ FT_NOERRORDEF_( Ok, 0x00, \"no error\" ) FT_ERRORDEF_( Cannot_Open_Resource, 0x01, \"cannot open resource\" ) FT_ERRORDEF_( Unknown_File_Format, 0x02, \"unknown file format\" ) FT_ERRORDEF_( Invalid_File_Format, 0x03, \"broken file\" ) FT_ERRORDEF_( Invalid_Version, 0x04, \"invalid FreeType version\" ) FT_ERRORDEF_( Lower_Module_Version, 0x05, \"module version is too low\" ) FT_ERRORDEF_( Invalid_Argument, 0x06, \"invalid argument\" ) FT_ERRORDEF_( Unimplemented_Feature, 0x07, \"unimplemented feature\" ) FT_ERRORDEF_( Invalid_Table, 0x08, \"broken table\" ) FT_ERRORDEF_( Invalid_Offset, 0x09, \"broken offset within table\" ) FT_ERRORDEF_( Array_Too_Large, 0x0A, \"array allocation size too large\" ) FT_ERRORDEF_( Missing_Module, 0x0B, \"missing module\" ) FT_ERRORDEF_( Missing_Property, 0x0C, \"missing property\" ) /* glyph/character errors */ FT_ERRORDEF_( Invalid_Glyph_Index, 0x10, \"invalid glyph index\" ) FT_ERRORDEF_( Invalid_Character_Code, 0x11, \"invalid character code\" ) FT_ERRORDEF_( Invalid_Glyph_Format, 0x12, \"unsupported glyph image format\" ) FT_ERRORDEF_( Cannot_Render_Glyph, 0x13, \"cannot render this glyph format\" ) FT_ERRORDEF_( Invalid_Outline, 0x14, \"invalid outline\" ) FT_ERRORDEF_( Invalid_Composite, 0x15, \"invalid composite glyph\" ) FT_ERRORDEF_( Too_Many_Hints, 0x16, \"too many hints\" ) FT_ERRORDEF_( Invalid_Pixel_Size, 0x17, \"invalid pixel size\" ) FT_ERRORDEF_( Invalid_SVG_Document, 0x18, \"invalid SVG document\" ) /* handle errors */ FT_ERRORDEF_( Invalid_Handle, 0x20, \"invalid object handle\" ) FT_ERRORDEF_( Invalid_Library_Handle, 0x21, \"invalid library handle\" ) FT_ERRORDEF_( Invalid_Driver_Handle, 0x22, \"invalid module handle\" ) FT_ERRORDEF_( Invalid_Face_Handle, 0x23, \"invalid face handle\" ) FT_ERRORDEF_( Invalid_Size_Handle, 0x24, \"invalid size handle\" ) FT_ERRORDEF_( Invalid_Slot_Handle, 0x25, \"invalid glyph slot handle\" ) FT_ERRORDEF_( Invalid_CharMap_Handle, 0x26, \"invalid charmap handle\" ) FT_ERRORDEF_( Invalid_Cache_Handle, 0x27, \"invalid cache manager handle\" ) FT_ERRORDEF_( Invalid_Stream_Handle, 0x28, \"invalid stream handle\" ) /* driver errors */ FT_ERRORDEF_( Too_Many_Drivers, 0x30, \"too many modules\" ) FT_ERRORDEF_( Too_Many_Extensions, 0x31, \"too many extensions\" ) /* memory errors */ FT_ERRORDEF_( Out_Of_Memory, 0x40, \"out of memory\" ) FT_ERRORDEF_( Unlisted_Object, 0x41, \"unlisted object\" ) /* stream errors */ FT_ERRORDEF_( Cannot_Open_Stream, 0x51, \"cannot open stream\" ) FT_ERRORDEF_( Invalid_Stream_Seek, 0x52, \"invalid stream seek\" ) FT_ERRORDEF_( Invalid_Stream_Skip, 0x53, \"invalid stream skip\" ) FT_ERRORDEF_( Invalid_Stream_Read, 0x54, \"invalid stream read\" ) FT_ERRORDEF_( Invalid_Stream_Operation, 0x55, \"invalid stream operation\" ) FT_ERRORDEF_( Invalid_Frame_Operation, 0x56, \"invalid frame operation\" ) FT_ERRORDEF_( Nested_Frame_Access, 0x57, \"nested frame access\" ) FT_ERRORDEF_( Invalid_Frame_Read, 0x58, \"invalid frame read\" ) /* raster errors */ FT_ERRORDEF_( Raster_Uninitialized, 0x60, \"raster uninitialized\" ) FT_ERRORDEF_( Raster_Corrupted, 0x61, \"raster corrupted\" ) FT_ERRORDEF_( Raster_Overflow, 0x62, \"raster overflow\" ) FT_ERRORDEF_( Raster_Negative_Height, 0x63, \"negative height while rastering\" ) /* cache errors */ FT_ERRORDEF_( Too_Many_Caches, 0x70, \"too many registered caches\" ) /* TrueType and SFNT errors */ FT_ERRORDEF_( Invalid_Opcode, 0x80, \"invalid opcode\" ) FT_ERRORDEF_( Too_Few_Arguments, 0x81, \"too few arguments\" ) FT_ERRORDEF_( Stack_Overflow, 0x82, \"stack overflow\" ) FT_ERRORDEF_( Code_Overflow, 0x83, \"code overflow\" ) FT_ERRORDEF_( Bad_Argument, 0x84, \"bad argument\" ) FT_ERRORDEF_( Divide_By_Zero, 0x85, \"division by zero\" ) FT_ERRORDEF_( Invalid_Reference, 0x86, \"invalid reference\" ) FT_ERRORDEF_( Debug_OpCode, 0x87, \"found debug opcode\" ) FT_ERRORDEF_( ENDF_In_Exec_Stream, 0x88, \"found ENDF opcode in execution stream\" ) FT_ERRORDEF_( Nested_DEFS, 0x89, \"nested DEFS\" ) FT_ERRORDEF_( Invalid_CodeRange, 0x8A, \"invalid code range\" ) FT_ERRORDEF_( Execution_Too_Long, 0x8B, \"execution context too long \" ) FT_ERRORDEF_( Too_Many_Function_Defs, 0x8C, \"too many function definitions\" ) FT_ERRORDEF_( Too_Many_Instruction_Defs, 0x8D, \"too many instruction definitions\" ) FT_ERRORDEF_( Table_Missing, 0x8E, \"SFNT font table missing\" ) FT_ERRORDEF_( Horiz_Header_Missing, 0x8F, \"horizontal header (hhea) table missing\" ) FT_ERRORDEF_( Locations_Missing, 0x90, \"locations (loca) table missing\" ) FT_ERRORDEF_( Name_Table_Missing, 0x91, \"name table missing\" ) FT_ERRORDEF_( CMap_Table_Missing, 0x92, \"character map (cmap) table missing\" ) FT_ERRORDEF_( Hmtx_Table_Missing, 0x93, \"horizontal metrics (hmtx) table missing\" ) FT_ERRORDEF_( Post_Table_Missing, 0x94, \"PostScript (post) table missing\" ) FT_ERRORDEF_( Invalid_Horiz_Metrics, 0x95, \"invalid horizontal metrics\" ) FT_ERRORDEF_( Invalid_CharMap_Format, 0x96, \"invalid character map (cmap) format\" ) FT_ERRORDEF_( Invalid_PPem, 0x97, \"invalid ppem value\" ) FT_ERRORDEF_( Invalid_Vert_Metrics, 0x98, \"invalid vertical metrics\" ) FT_ERRORDEF_( Could_Not_Find_Context, 0x99, \"could not find context\" ) FT_ERRORDEF_( Invalid_Post_Table_Format, 0x9A, \"invalid PostScript (post) table format\" ) FT_ERRORDEF_( Invalid_Post_Table, 0x9B, \"invalid PostScript (post) table\" ) FT_ERRORDEF_( DEF_In_Glyf_Bytecode, 0x9C, \"found FDEF or IDEF opcode in glyf bytecode\" ) FT_ERRORDEF_( Missing_Bitmap, 0x9D, \"missing bitmap in strike\" ) FT_ERRORDEF_( Missing_SVG_Hooks, 0x9E, \"SVG hooks have not been set\" ) /* CFF, CID, and Type 1 errors */ FT_ERRORDEF_( Syntax_Error, 0xA0, \"opcode syntax error\" ) FT_ERRORDEF_( Stack_Underflow, 0xA1, \"argument stack underflow\" ) FT_ERRORDEF_( Ignore, 0xA2, \"ignore\" ) FT_ERRORDEF_( No_Unicode_Glyph_Name, 0xA3, \"no Unicode glyph name found\" ) FT_ERRORDEF_( Glyph_Too_Big, 0xA4, \"glyph too big for hinting\" ) /* BDF errors */ FT_ERRORDEF_( Missing_Startfont_Field, 0xB0, \"`STARTFONT' field missing\" ) FT_ERRORDEF_( Missing_Font_Field, 0xB1, \"`FONT' field missing\" ) FT_ERRORDEF_( Missing_Size_Field, 0xB2, \"`SIZE' field missing\" ) FT_ERRORDEF_( Missing_Fontboundingbox_Field, 0xB3, \"`FONTBOUNDINGBOX' field missing\" ) FT_ERRORDEF_( Missing_Chars_Field, 0xB4, \"`CHARS' field missing\" ) FT_ERRORDEF_( Missing_Startchar_Field, 0xB5, \"`STARTCHAR' field missing\" ) FT_ERRORDEF_( Missing_Encoding_Field, 0xB6, \"`ENCODING' field missing\" ) FT_ERRORDEF_( Missing_Bbx_Field, 0xB7, \"`BBX' field missing\" ) FT_ERRORDEF_( Bbx_Too_Big, 0xB8, \"`BBX' too big\" ) FT_ERRORDEF_( Corrupted_Font_Header, 0xB9, \"Font header corrupted or missing fields\" ) FT_ERRORDEF_( Corrupted_Font_Glyphs, 0xBA, \"Font glyphs corrupted or missing fields\" )","title":"FT_Err_XXX"},{"location":"ft2-error_enumerations.html","text":"FreeType \u00bb Docs \u00bb Error Codes \u00bb Error Enumerations Error Enumerations \u00b6 Synopsis \u00b6 The header file fterrors.h (which is automatically included by freetype.h ) defines the handling of FreeType's enumeration constants. It can also be used to generate error message strings with a small macro trick explained below. Error Formats The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be defined in ftoption.h in order to make the higher byte indicate the module where the error has happened (this is not compatible with standard builds of FreeType 2, however). See the file ftmoderr.h for more details. Error Message Strings Error definitions are set up with special macros that allow client applications to build a table of error message strings. The strings are not included in a normal build of FreeType 2 to save space (most client applications do not use them). To do so, you have to define the following macros before including this file. FT_ERROR_START_LIST This macro is called before anything else to define the start of the error list. It is followed by several FT_ERROR_DEF calls. FT_ERROR_DEF( e, v, s ) This macro is called to define one single error. \u2018e\u2019 is the error code identifier (e.g., Invalid_Argument ), \u2018v\u2019 is the error's numerical value, and \u2018s\u2019 is the corresponding error string. FT_ERROR_END_LIST This macro ends the list. Additionally, you have to undefine FTERRORS_H_ before #including this file. Here is a simple example. #undef FTERRORS_H_ #define FT_ERRORDEF( e, v, s ) { e, s }, #define FT_ERROR_START_LIST { #define FT_ERROR_END_LIST { 0, NULL } }; const struct { int err_code; const char* err_msg; } ft_errors[] = #include An alternative to using an array is a switch statement. #undef FTERRORS_H_ #define FT_ERROR_START_LIST switch ( error_code ) { #define FT_ERRORDEF( e, v, s ) case v: return s; #define FT_ERROR_END_LIST } If you use FT_CONFIG_OPTION_USE_MODULE_ERRORS , error_code should be replaced with FT_ERROR_BASE(error_code) in the last example. FT_Error_String \u00b6 Defined in FT_ERRORS_H (freetype/fterrors.h). FT_EXPORT( const char * ) FT_Error_String ( FT_Error error_code ); Retrieve the description of a valid FreeType error code. input error_code A valid FreeType error code. return A C string or NULL , if any error occurred. note FreeType has to be compiled with FT_CONFIG_OPTION_ERROR_STRINGS or FT_DEBUG_LEVEL_ERROR to get meaningful descriptions. \u2018error_string\u2019 will be NULL otherwise. Module identification will be ignored: strcmp ( FT_Error_String ( FT_Err_Unknown_File_Format ), FT_Error_String ( BDF_Err_Unknown_File_Format ) ) == 0 ;","title":"Error Enumerations"},{"location":"ft2-error_enumerations.html#error-enumerations","text":"","title":"Error Enumerations"},{"location":"ft2-error_enumerations.html#synopsis","text":"The header file fterrors.h (which is automatically included by freetype.h ) defines the handling of FreeType's enumeration constants. It can also be used to generate error message strings with a small macro trick explained below. Error Formats The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be defined in ftoption.h in order to make the higher byte indicate the module where the error has happened (this is not compatible with standard builds of FreeType 2, however). See the file ftmoderr.h for more details. Error Message Strings Error definitions are set up with special macros that allow client applications to build a table of error message strings. The strings are not included in a normal build of FreeType 2 to save space (most client applications do not use them). To do so, you have to define the following macros before including this file. FT_ERROR_START_LIST This macro is called before anything else to define the start of the error list. It is followed by several FT_ERROR_DEF calls. FT_ERROR_DEF( e, v, s ) This macro is called to define one single error. \u2018e\u2019 is the error code identifier (e.g., Invalid_Argument ), \u2018v\u2019 is the error's numerical value, and \u2018s\u2019 is the corresponding error string. FT_ERROR_END_LIST This macro ends the list. Additionally, you have to undefine FTERRORS_H_ before #including this file. Here is a simple example. #undef FTERRORS_H_ #define FT_ERRORDEF( e, v, s ) { e, s }, #define FT_ERROR_START_LIST { #define FT_ERROR_END_LIST { 0, NULL } }; const struct { int err_code; const char* err_msg; } ft_errors[] = #include An alternative to using an array is a switch statement. #undef FTERRORS_H_ #define FT_ERROR_START_LIST switch ( error_code ) { #define FT_ERRORDEF( e, v, s ) case v: return s; #define FT_ERROR_END_LIST } If you use FT_CONFIG_OPTION_USE_MODULE_ERRORS , error_code should be replaced with FT_ERROR_BASE(error_code) in the last example.","title":"Synopsis"},{"location":"ft2-error_enumerations.html#ft_error_string","text":"Defined in FT_ERRORS_H (freetype/fterrors.h). FT_EXPORT( const char * ) FT_Error_String ( FT_Error error_code ); Retrieve the description of a valid FreeType error code.","title":"FT_Error_String"},{"location":"ft2-face_creation.html","text":"FreeType \u00bb Docs \u00bb Core API \u00bb Face Creation Face Creation \u00b6 Synopsis \u00b6 The functions and structures collected in this section operate on fonts globally. FT_Face \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_FaceRec_* FT_Face ; A handle to a typographic face object. A face object models a given typeface, in a given style. note A face object also owns a single FT_GlyphSlot object, as well as one or more FT_Size objects. Use FT_New_Face or FT_Open_Face to create a new face object from a given filepath or a custom input stream. Use FT_Done_Face to destroy it (along with its slot and sizes). An FT_Face object can only be safely used from one thread at a time. Similarly, creation and destruction of FT_Face with the same FT_Library object can only be done from one thread at a time. On the other hand, functions like FT_Load_Glyph and its siblings are thread-safe and do not need the lock to be held as long as the same FT_Face object is not used from multiple threads at the same time. also See FT_FaceRec for the publicly accessible fields of a given face object. FT_FaceRec \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_FaceRec_ { FT_Long num_faces; FT_Long face_index; FT_Long face_flags; FT_Long style_flags; FT_Long num_glyphs; FT_String * family_name; FT_String * style_name; FT_Int num_fixed_sizes; FT_Bitmap_Size * available_sizes; FT_Int num_charmaps; FT_CharMap * charmaps; FT_Generic generic; /* The following member variables (down to `underline_thickness`) */ /* are only relevant to scalable outlines; cf. @ FT_Bitmap_Size */ /* for bitmap fonts. */ FT_BBox bbox; FT_UShort units_per_EM; FT_Short ascender; FT_Short descender; FT_Short height; FT_Short max_advance_width; FT_Short max_advance_height; FT_Short underline_position; FT_Short underline_thickness; FT_GlyphSlot glyph; FT_Size size; FT_CharMap charmap; /* private fields, internal to FreeType */ FT_Driver driver; FT_Memory memory; FT_Stream stream; FT_ListRec sizes_list; FT_Generic autohint; /* face-specific auto-hinter data */ void * extensions; /* unused */ FT_Face_Internal internal; } FT_FaceRec ; FreeType root face class structure. A face object models a typeface in a font file. fields num_faces The number of faces in the font file. Some font formats can have multiple faces in a single font file. face_index This field holds two different values. Bits 0-15 are the index of the face in the font file (starting with value 0). They are set to 0 if there is only one face in the font file. [Since 2.6.1] Bits 16-30 are relevant to GX and OpenType variation fonts only, holding the named instance index for the current face index (starting with value 1; value 0 indicates font access without a named instance). For non-variation fonts, bits 16-30 are ignored. If we have the third named instance of face 4, say, face_index is set to 0x00030004. Bit 31 is always zero (that is, face_index is always a positive value). [Since 2.9] Changing the design coordinates with FT_Set_Var_Design_Coordinates or FT_Set_Var_Blend_Coordinates does not influence the named instance index value (only FT_Set_Named_Instance does that). face_flags A set of bit flags that give important information about the face; see FT_FACE_FLAG_XXX for the details. style_flags The lower 16 bits contain a set of bit flags indicating the style of the face; see FT_STYLE_FLAG_XXX for the details. [Since 2.6.1] Bits 16-30 hold the number of named instances available for the current face if we have a GX or OpenType variation (sub)font. Bit 31 is always zero (that is, style_flags is always a positive value). Note that a variation font has always at least one named instance, namely the default instance. num_glyphs The number of glyphs in the face. If the face is scalable and has sbits (see num_fixed_sizes ), it is set to the number of outline glyphs. For CID-keyed fonts (not in an SFNT wrapper) this value gives the highest CID used in the font. family_name The face's family name. This is an ASCII string, usually in English, that describes the typeface's family (like \u2018Times New Roman\u2019, \u2018Bodoni\u2019, \u2018Garamond\u2019, etc). This is a least common denominator used to list fonts. Some formats (TrueType & OpenType) provide localized and Unicode versions of this string. Applications should use the format-specific interface to access them. Can be NULL (e.g., in fonts embedded in a PDF file). In case the font doesn't provide a specific family name entry, FreeType tries to synthesize one, deriving it from other name entries. style_name The face's style name. This is an ASCII string, usually in English, that describes the typeface's style (like \u2018Italic\u2019, \u2018Bold\u2019, \u2018Condensed\u2019, etc). Not all font formats provide a style name, so this field is optional, and can be set to NULL . As for family_name , some formats provide localized and Unicode versions of this string. Applications should use the format-specific interface to access them. num_fixed_sizes The number of bitmap strikes in the face. Even if the face is scalable, there might still be bitmap strikes, which are called \u2018sbits\u2019 in that case. available_sizes An array of FT_Bitmap_Size for all bitmap strikes in the face. It is set to NULL if there is no bitmap strike. Note that FreeType tries to sanitize the strike data since they are sometimes sloppy or incorrect, but this can easily fail. num_charmaps The number of charmaps in the face. charmaps An array of the charmaps of the face. generic A field reserved for client uses. See the FT_Generic type description. bbox The font bounding box. Coordinates are expressed in font units (see units_per_EM ). The box is large enough to contain any glyph from the font. Thus, bbox.yMax can be seen as the \u2018maximum ascender\u2019, and bbox.yMin as the \u2018minimum descender\u2019. Only relevant for scalable formats. Note that the bounding box might be off by (at least) one pixel for hinted fonts. See FT_Size_Metrics for further discussion. Note that the bounding box does not vary in OpenType variation fonts and should only be used in relation to the default instance. units_per_EM The number of font units per EM square for this face. This is typically 2048 for TrueType fonts, and 1000 for Type 1 fonts. Only relevant for scalable formats. ascender The typographic ascender of the face, expressed in font units. For font formats not having this information, it is set to bbox.yMax . Only relevant for scalable formats. descender The typographic descender of the face, expressed in font units. For font formats not having this information, it is set to bbox.yMin . Note that this field is negative for values below the baseline. Only relevant for scalable formats. height This value is the vertical distance between two consecutive baselines, expressed in font units. It is always positive. Only relevant for scalable formats. If you want the global glyph height, use ascender - descender . max_advance_width The maximum advance width, in font units, for all glyphs in this face. This can be used to make word wrapping computations faster. Only relevant for scalable formats. max_advance_height The maximum advance height, in font units, for all glyphs in this face. This is only relevant for vertical layouts, and is set to height for fonts that do not provide vertical metrics. Only relevant for scalable formats. underline_position The position, in font units, of the underline line for this face. It is the center of the underlining stem. Only relevant for scalable formats. underline_thickness The thickness, in font units, of the underline for this face. Only relevant for scalable formats. glyph The face's associated glyph slot(s). size The current active size for this face. charmap The current active charmap for this face. note Fields may be changed after a call to FT_Attach_File or FT_Attach_Stream . For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an \u2018MVAR\u2019 table: ascender , descender , height , underline_position , and underline_thickness . Especially for TrueType fonts see also the documentation for FT_Size_Metrics . FT_FACE_FLAG_XXX \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_FACE_FLAG_SCALABLE ( 1L << 0 ) # define FT_FACE_FLAG_FIXED_SIZES ( 1L << 1 ) # define FT_FACE_FLAG_FIXED_WIDTH ( 1L << 2 ) # define FT_FACE_FLAG_SFNT ( 1L << 3 ) # define FT_FACE_FLAG_HORIZONTAL ( 1L << 4 ) # define FT_FACE_FLAG_VERTICAL ( 1L << 5 ) # define FT_FACE_FLAG_KERNING ( 1L << 6 ) # define FT_FACE_FLAG_FAST_GLYPHS ( 1L << 7 ) # define FT_FACE_FLAG_MULTIPLE_MASTERS ( 1L << 8 ) # define FT_FACE_FLAG_GLYPH_NAMES ( 1L << 9 ) # define FT_FACE_FLAG_EXTERNAL_STREAM ( 1L << 10 ) # define FT_FACE_FLAG_HINTER ( 1L << 11 ) # define FT_FACE_FLAG_CID_KEYED ( 1L << 12 ) # define FT_FACE_FLAG_TRICKY ( 1L << 13 ) # define FT_FACE_FLAG_COLOR ( 1L << 14 ) # define FT_FACE_FLAG_VARIATION ( 1L << 15 ) # define FT_FACE_FLAG_SVG ( 1L << 16 ) # define FT_FACE_FLAG_SBIX ( 1L << 17 ) # define FT_FACE_FLAG_SBIX_OVERLAY ( 1L << 18 ) A list of bit flags used in the face_flags field of the FT_FaceRec structure. They inform client applications of properties of the corresponding face. values FT_FACE_FLAG_SCALABLE The face contains outline glyphs. Note that a face can contain bitmap strikes also, i.e., a face can have both this flag and FT_FACE_FLAG_FIXED_SIZES set. FT_FACE_FLAG_FIXED_SIZES The face contains bitmap strikes. See also the num_fixed_sizes and available_sizes fields of FT_FaceRec . FT_FACE_FLAG_FIXED_WIDTH The face contains fixed-width characters (like Courier, Lucida, MonoType, etc.). FT_FACE_FLAG_SFNT The face uses the SFNT storage scheme. For now, this means TrueType and OpenType. FT_FACE_FLAG_HORIZONTAL The face contains horizontal glyph metrics. This should be set for all common formats. FT_FACE_FLAG_VERTICAL The face contains vertical glyph metrics. This is only available in some formats, not all of them. FT_FACE_FLAG_KERNING The face contains kerning information. If set, the kerning distance can be retrieved using the function FT_Get_Kerning . Otherwise the function always returns the vector (0,0). Note that FreeType doesn't handle kerning data from the SFNT \u2018GPOS\u2019 table (as present in many OpenType fonts). FT_FACE_FLAG_FAST_GLYPHS THIS FLAG IS DEPRECATED. DO NOT USE OR TEST IT. FT_FACE_FLAG_MULTIPLE_MASTERS The face contains multiple masters and is capable of interpolating between them. Supported formats are Adobe MM, TrueType GX, and OpenType variation fonts. See section \u2018 Multiple Masters \u2019 for API details. FT_FACE_FLAG_GLYPH_NAMES The face contains glyph names, which can be retrieved using FT_Get_Glyph_Name . Note that some TrueType fonts contain broken glyph name tables. Use the function FT_Has_PS_Glyph_Names when needed. FT_FACE_FLAG_EXTERNAL_STREAM Used internally by FreeType to indicate that a face's stream was provided by the client application and should not be destroyed when FT_Done_Face is called. Don't read or test this flag. FT_FACE_FLAG_HINTER The font driver has a hinting machine of its own. For example, with TrueType fonts, it makes sense to use data from the SFNT \u2018gasp\u2019 table only if the native TrueType hinting engine (with the bytecode interpreter) is available and active. FT_FACE_FLAG_CID_KEYED The face is CID-keyed. In that case, the face is not accessed by glyph indices but by CID values. For subsetted CID-keyed fonts this has the consequence that not all index values are a valid argument to FT_Load_Glyph . Only the CID values for which corresponding glyphs in the subsetted font exist make FT_Load_Glyph return successfully; in all other cases you get an FT_Err_Invalid_Argument error. Note that CID-keyed fonts that are in an SFNT wrapper (that is, all OpenType/CFF fonts) don't have this flag set since the glyphs are accessed in the normal way (using contiguous indices); the \u2018CID-ness\u2019 isn't visible to the application. FT_FACE_FLAG_TRICKY The face is \u2018tricky\u2019, that is, it always needs the font format's native hinting engine to get a reasonable result. A typical example is the old Chinese font mingli.ttf (but not mingliu.ttc ) that uses TrueType bytecode instructions to move and scale all of its subglyphs. It is not possible to auto-hint such fonts using FT_LOAD_FORCE_AUTOHINT ; it will also ignore FT_LOAD_NO_HINTING . You have to set both FT_LOAD_NO_HINTING and FT_LOAD_NO_AUTOHINT to really disable hinting; however, you probably never want this except for demonstration purposes. Currently, there are about a dozen TrueType fonts in the list of tricky fonts; they are hard-coded in file ttobjs.c . FT_FACE_FLAG_COLOR [Since 2.5.1] The face has color glyph tables. See FT_LOAD_COLOR for more information. FT_FACE_FLAG_VARIATION [Since 2.9] Set if the current face (or named instance) has been altered with FT_Set_MM_Design_Coordinates , FT_Set_Var_Design_Coordinates , FT_Set_Var_Blend_Coordinates , or FT_Set_MM_WeightVector to select a non-default instance. FT_FACE_FLAG_SVG [Since 2.12] The face has an \u2018SVG \u2019 OpenType table. FT_FACE_FLAG_SBIX [Since 2.12] The face has an \u2018sbix\u2019 OpenType table and outlines. For such fonts, FT_FACE_FLAG_SCALABLE is not set by default to retain backward compatibility. FT_FACE_FLAG_SBIX_OVERLAY [Since 2.12] The face has an \u2018sbix\u2019 OpenType table where outlines should be drawn on top of bitmap strikes. FT_STYLE_FLAG_XXX \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_STYLE_FLAG_ITALIC ( 1 << 0 ) # define FT_STYLE_FLAG_BOLD ( 1 << 1 ) A list of bit flags to indicate the style of a given face. These are used in the style_flags field of FT_FaceRec . values FT_STYLE_FLAG_ITALIC The face style is italic or oblique. FT_STYLE_FLAG_BOLD The face is bold. note The style information as provided by FreeType is very basic. More details are beyond the scope and should be done on a higher level (for example, by analyzing various fields of the \u2018OS/2\u2019 table in SFNT based fonts). FT_New_Face \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_New_Face ( FT_Library library, const char * filepathname, FT_Long face_index, FT_Face *aface ); Call FT_Open_Face to open a font by its pathname. inout library A handle to the library resource. input pathname A path to the font file. face_index See FT_Open_Face for a detailed description of this parameter. output aface A handle to a new face object. If face_index is greater than or equal to zero, it must be non- NULL . return FreeType error code. 0 means success. note The pathname string should be recognizable as such by a standard fopen call on your system; in particular, this means that pathname must not contain null bytes. If that is not sufficient to address all file name possibilities (for example, to handle wide character file names on Windows in UTF-16 encoding) you might use FT_Open_Face to pass a memory array or a stream object instead. Use FT_Done_Face to destroy the created FT_Face object (along with its slot and sizes). FT_Done_Face \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Done_Face ( FT_Face face ); Discard a given face object, as well as all of its child slots and sizes. input face A handle to a target face object. return FreeType error code. 0 means success. note See the discussion of reference counters in the description of FT_Reference_Face . FT_Reference_Face \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Reference_Face ( FT_Face face ); A counter gets initialized to 1 at the time an FT_Face structure is created. This function increments the counter. FT_Done_Face then only destroys a face if the counter is 1, otherwise it simply decrements the counter. This function helps in managing life-cycles of structures that reference FT_Face objects. input face A handle to a target face object. return FreeType error code. 0 means success. since 2.4.2 FT_New_Memory_Face \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_New_Memory_Face ( FT_Library library, const FT_Byte * file_base, FT_Long file_size, FT_Long face_index, FT_Face *aface ); Call FT_Open_Face to open a font that has been loaded into memory. inout library A handle to the library resource. input file_base A pointer to the beginning of the font data. file_size The size of the memory chunk used by the font data. face_index See FT_Open_Face for a detailed description of this parameter. output aface A handle to a new face object. If face_index is greater than or equal to zero, it must be non- NULL . return FreeType error code. 0 means success. note You must not deallocate the memory before calling FT_Done_Face . FT_Face_Properties \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Face_Properties ( FT_Face face, FT_UInt num_properties, FT_Parameter * properties ); Set or override certain (library or module-wide) properties on a face-by-face basis. Useful for finer-grained control and avoiding locks on shared structures (threads can modify their own faces as they see fit). Contrary to FT_Property_Set , this function uses FT_Parameter so that you can pass multiple properties to the target face in one call. Note that only a subset of the available properties can be controlled. FT_PARAM_TAG_STEM_DARKENING (stem darkening, corresponding to the property no-stem-darkening provided by the \u2018autofit\u2019, \u2018cff\u2019, \u2018type1\u2019, and \u2018t1cid\u2019 modules; see no-stem-darkening ). FT_PARAM_TAG_LCD_FILTER_WEIGHTS (LCD filter weights, corresponding to function FT_Library_SetLcdFilterWeights ). FT_PARAM_TAG_RANDOM_SEED (seed value for the CFF, Type 1, and CID \u2018random\u2019 operator, corresponding to the random-seed property provided by the \u2018cff\u2019, \u2018type1\u2019, and \u2018t1cid\u2019 modules; see random-seed ). Pass NULL as data in FT_Parameter for a given tag to reset the option and use the library or module default again. input face A handle to the source face object. num_properties The number of properties that follow. properties A handle to an FT_Parameter array with num_properties elements. return FreeType error code. 0 means success. example Here is an example that sets three properties. You must define FT_CONFIG_OPTION_SUBPIXEL_RENDERING to make the LCD filter examples work. FT_Parameter property1; FT_Bool darken_stems = 1; FT_Parameter property2; FT_LcdFiveTapFilter custom_weight = { 0x11, 0x44, 0x56, 0x44, 0x11 }; FT_Parameter property3; FT_Int32 random_seed = 314159265; FT_Parameter properties[3] = { property1, property2, property3 }; property1.tag = FT_PARAM_TAG_STEM_DARKENING; property1.data = &darken_stems; property2.tag = FT_PARAM_TAG_LCD_FILTER_WEIGHTS; property2.data = custom_weight; property3.tag = FT_PARAM_TAG_RANDOM_SEED; property3.data = &random_seed; FT_Face_Properties( face, 3, properties ); The next example resets a single property to its default value. FT_Parameter property; property.tag = FT_PARAM_TAG_LCD_FILTER_WEIGHTS; property.data = NULL; FT_Face_Properties( face, 1, &property ); since 2.8 FT_Open_Face \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Open_Face ( FT_Library library, const FT_Open_Args * args, FT_Long face_index, FT_Face *aface ); Create a face object from a given resource described by FT_Open_Args . inout library A handle to the library resource. input args A pointer to an FT_Open_Args structure that must be filled by the caller. face_index This field holds two different values. Bits 0-15 are the index of the face in the font file (starting with value 0). Set it to 0 if there is only one face in the font file. [Since 2.6.1] Bits 16-30 are relevant to GX and OpenType variation fonts only, specifying the named instance index for the current face index (starting with value 1; value 0 makes FreeType ignore named instances). For non-variation fonts, bits 16-30 are ignored. Assuming that you want to access the third named instance in face 4, face_index should be set to 0x00030004. If you want to access face 4 without variation handling, simply set face_index to value 4. FT_Open_Face and its siblings can be used to quickly check whether the font format of a given font resource is supported by FreeType. In general, if the face_index argument is negative, the function's return value is 0 if the font format is recognized, or non-zero otherwise. The function allocates a more or less empty face handle in *aface (if aface isn't NULL ); the only two useful fields in this special case are face->num_faces and face->style_flags . For any negative value of face_index , face->num_faces gives the number of faces within the font file. For the negative value \u2018-(N+1)\u2019 (with \u2018N\u2019 a non-negative 16-bit value), bits 16-30 in face->style_flags give the number of named instances in face \u2018N\u2019 if we have a variation font (or zero otherwise). After examination, the returned FT_Face structure should be deallocated with a call to FT_Done_Face . output aface A handle to a new face object. If face_index is greater than or equal to zero, it must be non- NULL . return FreeType error code. 0 means success. note Unlike FreeType 1.x, this function automatically creates a glyph slot for the face object that can be accessed directly through face->glyph . Each new face object created with this function also owns a default FT_Size object, accessible as face->size . One FT_Library instance can have multiple face objects, that is, FT_Open_Face and its siblings can be called multiple times using the same library argument. See the discussion of reference counters in the description of FT_Reference_Face . If FT_OPEN_STREAM is set in args->flags , the stream in args->stream is automatically closed before this function returns any error (including FT_Err_Invalid_Argument ). example To loop over all faces, use code similar to the following snippet (omitting the error handling). ... FT_Face face; FT_Long i, num_faces; error = FT_Open_Face( library, args, -1, &face ); if ( error ) { ... } num_faces = face->num_faces; FT_Done_Face( face ); for ( i = 0; i < num_faces; i++ ) { ... error = FT_Open_Face( library, args, i, &face ); ... FT_Done_Face( face ); ... } To loop over all valid values for face_index , use something similar to the following snippet, again without error handling. The code accesses all faces immediately (thus only a single call of FT_Open_Face within the do-loop), with and without named instances. ... FT_Face face; FT_Long num_faces = 0; FT_Long num_instances = 0; FT_Long face_idx = 0; FT_Long instance_idx = 0; do { FT_Long id = ( instance_idx << 16 ) + face_idx; error = FT_Open_Face( library, args, id, &face ); if ( error ) { ... } num_faces = face->num_faces; num_instances = face->style_flags >> 16; ... FT_Done_Face( face ); if ( instance_idx < num_instances ) instance_idx++; else { face_idx++; instance_idx = 0; } } while ( face_idx < num_faces ) FT_Open_Args \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Open_Args_ { FT_UInt flags; const FT_Byte * memory_base; FT_Long memory_size; FT_String * pathname; FT_Stream stream; FT_Module driver; FT_Int num_params; FT_Parameter * params; } FT_Open_Args ; A structure to indicate how to open a new font file or stream. A pointer to such a structure can be used as a parameter for the functions FT_Open_Face and FT_Attach_Stream . fields flags A set of bit flags indicating how to use the structure. memory_base The first byte of the file in memory. memory_size The size in bytes of the file in memory. pathname A pointer to an 8-bit file pathname, which must be a C string (i.e., no null bytes except at the very end). The pointer is not owned by FreeType. stream A handle to a source stream object. driver This field is exclusively used by FT_Open_Face ; it simply specifies the font driver to use for opening the face. If set to NULL , FreeType tries to load the face with each one of the drivers in its list. num_params The number of extra parameters. params Extra parameters passed to the font driver when opening a new face. note The stream type is determined by the contents of flags : If the FT_OPEN_MEMORY bit is set, assume that this is a memory file of memory_size bytes, located at memory_address . The data are not copied, and the client is responsible for releasing and destroying them after the corresponding call to FT_Done_Face . Otherwise, if the FT_OPEN_STREAM bit is set, assume that a custom input stream stream is used. Otherwise, if the FT_OPEN_PATHNAME bit is set, assume that this is a normal file and use pathname to open it. If none of the above bits are set or if multiple are set at the same time, the flags are invalid and FT_Open_Face fails. If the FT_OPEN_DRIVER bit is set, FT_Open_Face only tries to open the file with the driver whose handler is in driver . If the FT_OPEN_PARAMS bit is set, the parameters given by num_params and params is used. They are ignored otherwise. Ideally, both the pathname and params fields should be tagged as \u2018const\u2019; this is missing for API backward compatibility. In other words, applications should treat them as read-only. FT_OPEN_XXX \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_OPEN_MEMORY 0x1 # define FT_OPEN_STREAM 0x2 # define FT_OPEN_PATHNAME 0x4 # define FT_OPEN_DRIVER 0x8 # define FT_OPEN_PARAMS 0x10 /* these constants are deprecated; use the corresponding ` FT_OPEN_XXX ` */ /* values instead */ # define ft_open_memory FT_OPEN_MEMORY # define ft_open_stream FT_OPEN_STREAM # define ft_open_pathname FT_OPEN_PATHNAME # define ft_open_driver FT_OPEN_DRIVER # define ft_open_params FT_OPEN_PARAMS A list of bit field constants used within the flags field of the FT_Open_Args structure. values FT_OPEN_MEMORY This is a memory-based stream. FT_OPEN_STREAM Copy the stream from the stream field. FT_OPEN_PATHNAME Create a new input stream from a C path name. FT_OPEN_DRIVER Use the driver field. FT_OPEN_PARAMS Use the num_params and params fields. note The FT_OPEN_MEMORY , FT_OPEN_STREAM , and FT_OPEN_PATHNAME flags are mutually exclusive. FT_Parameter \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Parameter_ { FT_ULong tag; FT_Pointer data; } FT_Parameter ; A simple structure to pass more or less generic parameters to FT_Open_Face and FT_Face_Properties . fields tag A four-byte identification tag. data A pointer to the parameter data. note The ID and function of parameters are driver-specific. See section \u2018 Parameter Tags \u2019 for more information. FT_Attach_File \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Attach_File ( FT_Face face, const char * filepathname ); Call FT_Attach_Stream to attach a file. inout face The target face object. input filepathname The pathname. return FreeType error code. 0 means success. FT_Attach_Stream \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Attach_Stream ( FT_Face face, const FT_Open_Args * parameters ); \u2018Attach\u2019 data to a face object. Normally, this is used to read additional information for the face object. For example, you can attach an AFM file that comes with a Type 1 font to get the kerning values and other metrics. inout face The target face object. input parameters A pointer to FT_Open_Args that must be filled by the caller. return FreeType error code. 0 means success. note The meaning of the \u2018attach\u2019 (i.e., what really happens when the new file is read) is not fixed by FreeType itself. It really depends on the font format (and thus the font driver). Client applications are expected to know what they are doing when invoking this function. Most drivers simply do not implement file or stream attachments.","title":"Face Creation"},{"location":"ft2-face_creation.html#face-creation","text":"","title":"Face Creation"},{"location":"ft2-face_creation.html#synopsis","text":"The functions and structures collected in this section operate on fonts globally.","title":"Synopsis"},{"location":"ft2-face_creation.html#ft_face","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_FaceRec_* FT_Face ; A handle to a typographic face object. A face object models a given typeface, in a given style.","title":"FT_Face"},{"location":"ft2-face_creation.html#ft_facerec","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_FaceRec_ { FT_Long num_faces; FT_Long face_index; FT_Long face_flags; FT_Long style_flags; FT_Long num_glyphs; FT_String * family_name; FT_String * style_name; FT_Int num_fixed_sizes; FT_Bitmap_Size * available_sizes; FT_Int num_charmaps; FT_CharMap * charmaps; FT_Generic generic; /* The following member variables (down to `underline_thickness`) */ /* are only relevant to scalable outlines; cf. @ FT_Bitmap_Size */ /* for bitmap fonts. */ FT_BBox bbox; FT_UShort units_per_EM; FT_Short ascender; FT_Short descender; FT_Short height; FT_Short max_advance_width; FT_Short max_advance_height; FT_Short underline_position; FT_Short underline_thickness; FT_GlyphSlot glyph; FT_Size size; FT_CharMap charmap; /* private fields, internal to FreeType */ FT_Driver driver; FT_Memory memory; FT_Stream stream; FT_ListRec sizes_list; FT_Generic autohint; /* face-specific auto-hinter data */ void * extensions; /* unused */ FT_Face_Internal internal; } FT_FaceRec ; FreeType root face class structure. A face object models a typeface in a font file.","title":"FT_FaceRec"},{"location":"ft2-face_creation.html#ft_face_flag_xxx","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_FACE_FLAG_SCALABLE ( 1L << 0 ) # define FT_FACE_FLAG_FIXED_SIZES ( 1L << 1 ) # define FT_FACE_FLAG_FIXED_WIDTH ( 1L << 2 ) # define FT_FACE_FLAG_SFNT ( 1L << 3 ) # define FT_FACE_FLAG_HORIZONTAL ( 1L << 4 ) # define FT_FACE_FLAG_VERTICAL ( 1L << 5 ) # define FT_FACE_FLAG_KERNING ( 1L << 6 ) # define FT_FACE_FLAG_FAST_GLYPHS ( 1L << 7 ) # define FT_FACE_FLAG_MULTIPLE_MASTERS ( 1L << 8 ) # define FT_FACE_FLAG_GLYPH_NAMES ( 1L << 9 ) # define FT_FACE_FLAG_EXTERNAL_STREAM ( 1L << 10 ) # define FT_FACE_FLAG_HINTER ( 1L << 11 ) # define FT_FACE_FLAG_CID_KEYED ( 1L << 12 ) # define FT_FACE_FLAG_TRICKY ( 1L << 13 ) # define FT_FACE_FLAG_COLOR ( 1L << 14 ) # define FT_FACE_FLAG_VARIATION ( 1L << 15 ) # define FT_FACE_FLAG_SVG ( 1L << 16 ) # define FT_FACE_FLAG_SBIX ( 1L << 17 ) # define FT_FACE_FLAG_SBIX_OVERLAY ( 1L << 18 ) A list of bit flags used in the face_flags field of the FT_FaceRec structure. They inform client applications of properties of the corresponding face.","title":"FT_FACE_FLAG_XXX"},{"location":"ft2-face_creation.html#ft_style_flag_xxx","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_STYLE_FLAG_ITALIC ( 1 << 0 ) # define FT_STYLE_FLAG_BOLD ( 1 << 1 ) A list of bit flags to indicate the style of a given face. These are used in the style_flags field of FT_FaceRec .","title":"FT_STYLE_FLAG_XXX"},{"location":"ft2-face_creation.html#ft_new_face","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_New_Face ( FT_Library library, const char * filepathname, FT_Long face_index, FT_Face *aface ); Call FT_Open_Face to open a font by its pathname.","title":"FT_New_Face"},{"location":"ft2-face_creation.html#ft_done_face","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Done_Face ( FT_Face face ); Discard a given face object, as well as all of its child slots and sizes.","title":"FT_Done_Face"},{"location":"ft2-face_creation.html#ft_reference_face","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Reference_Face ( FT_Face face ); A counter gets initialized to 1 at the time an FT_Face structure is created. This function increments the counter. FT_Done_Face then only destroys a face if the counter is 1, otherwise it simply decrements the counter. This function helps in managing life-cycles of structures that reference FT_Face objects.","title":"FT_Reference_Face"},{"location":"ft2-face_creation.html#ft_new_memory_face","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_New_Memory_Face ( FT_Library library, const FT_Byte * file_base, FT_Long file_size, FT_Long face_index, FT_Face *aface ); Call FT_Open_Face to open a font that has been loaded into memory.","title":"FT_New_Memory_Face"},{"location":"ft2-face_creation.html#ft_face_properties","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Face_Properties ( FT_Face face, FT_UInt num_properties, FT_Parameter * properties ); Set or override certain (library or module-wide) properties on a face-by-face basis. Useful for finer-grained control and avoiding locks on shared structures (threads can modify their own faces as they see fit). Contrary to FT_Property_Set , this function uses FT_Parameter so that you can pass multiple properties to the target face in one call. Note that only a subset of the available properties can be controlled. FT_PARAM_TAG_STEM_DARKENING (stem darkening, corresponding to the property no-stem-darkening provided by the \u2018autofit\u2019, \u2018cff\u2019, \u2018type1\u2019, and \u2018t1cid\u2019 modules; see no-stem-darkening ). FT_PARAM_TAG_LCD_FILTER_WEIGHTS (LCD filter weights, corresponding to function FT_Library_SetLcdFilterWeights ). FT_PARAM_TAG_RANDOM_SEED (seed value for the CFF, Type 1, and CID \u2018random\u2019 operator, corresponding to the random-seed property provided by the \u2018cff\u2019, \u2018type1\u2019, and \u2018t1cid\u2019 modules; see random-seed ). Pass NULL as data in FT_Parameter for a given tag to reset the option and use the library or module default again.","title":"FT_Face_Properties"},{"location":"ft2-face_creation.html#ft_open_face","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Open_Face ( FT_Library library, const FT_Open_Args * args, FT_Long face_index, FT_Face *aface ); Create a face object from a given resource described by FT_Open_Args .","title":"FT_Open_Face"},{"location":"ft2-face_creation.html#ft_open_args","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Open_Args_ { FT_UInt flags; const FT_Byte * memory_base; FT_Long memory_size; FT_String * pathname; FT_Stream stream; FT_Module driver; FT_Int num_params; FT_Parameter * params; } FT_Open_Args ; A structure to indicate how to open a new font file or stream. A pointer to such a structure can be used as a parameter for the functions FT_Open_Face and FT_Attach_Stream .","title":"FT_Open_Args"},{"location":"ft2-face_creation.html#ft_open_xxx","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_OPEN_MEMORY 0x1 # define FT_OPEN_STREAM 0x2 # define FT_OPEN_PATHNAME 0x4 # define FT_OPEN_DRIVER 0x8 # define FT_OPEN_PARAMS 0x10 /* these constants are deprecated; use the corresponding ` FT_OPEN_XXX ` */ /* values instead */ # define ft_open_memory FT_OPEN_MEMORY # define ft_open_stream FT_OPEN_STREAM # define ft_open_pathname FT_OPEN_PATHNAME # define ft_open_driver FT_OPEN_DRIVER # define ft_open_params FT_OPEN_PARAMS A list of bit field constants used within the flags field of the FT_Open_Args structure.","title":"FT_OPEN_XXX"},{"location":"ft2-face_creation.html#ft_parameter","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Parameter_ { FT_ULong tag; FT_Pointer data; } FT_Parameter ; A simple structure to pass more or less generic parameters to FT_Open_Face and FT_Face_Properties .","title":"FT_Parameter"},{"location":"ft2-face_creation.html#ft_attach_file","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Attach_File ( FT_Face face, const char * filepathname ); Call FT_Attach_Stream to attach a file.","title":"FT_Attach_File"},{"location":"ft2-face_creation.html#ft_attach_stream","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Attach_Stream ( FT_Face face, const FT_Open_Args * parameters ); \u2018Attach\u2019 data to a face object. Normally, this is used to read additional information for the face object. For example, you can attach an AFM file that comes with a Type 1 font to get the kerning values and other metrics.","title":"FT_Attach_Stream"},{"location":"ft2-font_formats.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb Font Formats Font Formats \u00b6 Synopsis \u00b6 The single function in this section can be used to get the font format. Note that this information is not needed normally; however, there are special cases (like in PDF devices) where it is important to differentiate, in spite of FreeType's uniform API. FT_Get_Font_Format \u00b6 Defined in FT_FONT_FORMATS_H (freetype/ftfntfmt.h). FT_EXPORT( const char * ) FT_Get_Font_Format ( FT_Face face ); /* deprecated */ FT_EXPORT( const char * ) FT_Get_X11_Font_Format( FT_Face face ); Return a string describing the format of a given face. Possible values are \u2018TrueType\u2019, \u2018Type 1\u2019, \u2018BDF\u2019, \u2018PCF\u2019, \u2018Type 42\u2019, \u2018CID Type 1\u2019, \u2018CFF\u2019, \u2018PFR\u2019, and \u2018Windows FNT\u2019. The return value is suitable to be used as an X11 FONT_PROPERTY. input face Input face handle. return Font format string. NULL in case of error. note A deprecated name for the same function is FT_Get_X11_Font_Format .","title":"Font Formats"},{"location":"ft2-font_formats.html#font-formats","text":"","title":"Font Formats"},{"location":"ft2-font_formats.html#synopsis","text":"The single function in this section can be used to get the font format. Note that this information is not needed normally; however, there are special cases (like in PDF devices) where it is important to differentiate, in spite of FreeType's uniform API.","title":"Synopsis"},{"location":"ft2-font_formats.html#ft_get_font_format","text":"Defined in FT_FONT_FORMATS_H (freetype/ftfntfmt.h). FT_EXPORT( const char * ) FT_Get_Font_Format ( FT_Face face ); /* deprecated */ FT_EXPORT( const char * ) FT_Get_X11_Font_Format( FT_Face face ); Return a string describing the format of a given face. Possible values are \u2018TrueType\u2019, \u2018Type 1\u2019, \u2018BDF\u2019, \u2018PCF\u2019, \u2018Type 42\u2019, \u2018CID Type 1\u2019, \u2018CFF\u2019, \u2018PFR\u2019, and \u2018Windows FNT\u2019. The return value is suitable to be used as an X11 FONT_PROPERTY.","title":"FT_Get_Font_Format"},{"location":"ft2-font_testing_macros.html","text":"FreeType \u00bb Docs \u00bb Core API \u00bb Font Testing Macros Font Testing Macros \u00b6 Synopsis \u00b6 Macros to test the most important font properties. It is recommended to use these high-level macros instead of directly testing the corresponding flags, which are scattered over various structures. FT_HAS_HORIZONTAL \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_HORIZONTAL ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_HORIZONTAL ) ) A macro that returns true whenever a face object contains horizontal metrics (this is true for all font formats though). also FT_HAS_VERTICAL can be used to check for vertical metrics. FT_HAS_VERTICAL \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_VERTICAL ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_VERTICAL ) ) A macro that returns true whenever a face object contains real vertical metrics (and not only synthesized ones). FT_HAS_KERNING \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_KERNING ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_KERNING ) ) A macro that returns true whenever a face object contains kerning data that can be accessed with FT_Get_Kerning . FT_HAS_FIXED_SIZES \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_FIXED_SIZES ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_FIXED_SIZES ) ) A macro that returns true whenever a face object contains some embedded bitmaps. See the available_sizes field of the FT_FaceRec structure. FT_HAS_GLYPH_NAMES \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_GLYPH_NAMES ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) ) A macro that returns true whenever a face object contains some glyph names that can be accessed through FT_Get_Glyph_Name . FT_HAS_COLOR \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_COLOR ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_COLOR ) ) A macro that returns true whenever a face object contains tables for color glyphs. since 2.5.1 FT_HAS_MULTIPLE_MASTERS \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_MULTIPLE_MASTERS ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS ) ) A macro that returns true whenever a face object contains some multiple masters. The functions provided by FT_MULTIPLE_MASTERS_H are then available to choose the exact design you want. FT_HAS_SVG \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_SVG ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SVG ) ) A macro that returns true whenever a face object contains an \u2018SVG \u2019 OpenType table. since 2.12 FT_HAS_SBIX \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_SBIX ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SBIX ) ) A macro that returns true whenever a face object contains an \u2018sbix\u2019 OpenType table and outline glyphs. Currently, FreeType only supports bitmap glyphs in PNG format for this table (i.e., JPEG and TIFF formats are unsupported, as are Apple-specific formats not part of the OpenType specification). note For backward compatibility, a font with an \u2018sbix\u2019 table is treated as a bitmap-only face. Using FT_Open_Face with FT_PARAM_TAG_IGNORE_SBIX , an application can switch off \u2018sbix\u2019 handling so that the face is treated as an ordinary outline font with scalable outlines. Here is some pseudo code that roughly illustrates how to implement \u2018sbix\u2019 handling according to the OpenType specification. if ( FT_HAS_SBIX( face ) ) { // open font as a scalable one without sbix handling FT_Face face2; FT_Parameter param = { FT_PARAM_TAG_IGNORE_SBIX, NULL }; FT_Open_Args args = { FT_OPEN_PARAMS | ..., ..., 1, ¶m }; FT_Open_Face( library, &args, 0, &face2 ); available_size` as necessary into `preferred_sizes`[*]> for ( i = 0; i < face->num_fixed_sizes; i++ ) { size = preferred_sizes[i].size; error = FT_Set_Pixel_Sizes( face, size, size ); // check whether we have a glyph in a bitmap strike error = FT_Load_Glyph( face, glyph_index, FT_LOAD_SBITS_ONLY | FT_LOAD_BITMAP_METRICS_ONLY ); if ( error == FT_Err_Invalid_Argument ) continue; else if ( error ) else break; } if ( i != face->num_fixed_sizes ) if ( i == face->num_fixed_sizes || FT_HAS_SBIX_OVERLAY( face ) ) } [*] Assuming a target value of 400dpi and available strike sizes 100, 200, 300, and 400dpi, a possible order might be [400, 200, 300, 100]: scaling 200dpi to 400dpi usually gives better results than scaling 300dpi to 400dpi; it is also much faster. However, scaling 100dpi to 400dpi can yield a too pixelated result, thus the preference might be 300dpi over 100dpi. since 2.12 FT_HAS_SBIX_OVERLAY \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_SBIX_OVERLAY ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SBIX_OVERLAY ) ) A macro that returns true whenever a face object contains an \u2018sbix\u2019 OpenType table with bit 1 in its flags field set, instructing the application to overlay the bitmap strike with the corresponding outline glyph. See FT_HAS_SBIX for pseudo code how to use it. since 2.12 FT_IS_SFNT \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_SFNT ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SFNT ) ) A macro that returns true whenever a face object contains a font whose format is based on the SFNT storage scheme. This usually means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded bitmap fonts. If this macro is true, all functions defined in FT_SFNT_NAMES_H and FT_TRUETYPE_TABLES_H are available. FT_IS_SCALABLE \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_SCALABLE ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SCALABLE ) ) A macro that returns true whenever a face object contains a scalable font face (true for TrueType, Type 1, Type 42, CID, OpenType/CFF, and PFR font formats). FT_IS_FIXED_WIDTH \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_FIXED_WIDTH ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_FIXED_WIDTH ) ) A macro that returns true whenever a face object contains a font face that contains fixed-width (or \u2018monospace\u2019, \u2018fixed-pitch\u2019, etc.) glyphs. FT_IS_CID_KEYED \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_CID_KEYED ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_CID_KEYED ) ) A macro that returns true whenever a face object contains a CID-keyed font. See the discussion of FT_FACE_FLAG_CID_KEYED for more details. If this macro is true, all functions defined in FT_CID_H are available. FT_IS_TRICKY \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_TRICKY ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_TRICKY ) ) A macro that returns true whenever a face represents a \u2018tricky\u2019 font. See the discussion of FT_FACE_FLAG_TRICKY for more details. FT_IS_NAMED_INSTANCE \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_NAMED_INSTANCE ( face ) \\ ( !!( (face)->face_index & 0x7FFF0000L ) ) A macro that returns true whenever a face object is a named instance of a GX or OpenType variation font. [Since 2.9] Changing the design coordinates with FT_Set_Var_Design_Coordinates or FT_Set_Var_Blend_Coordinates does not influence the return value of this macro (only FT_Set_Named_Instance does that). since 2.7 FT_IS_VARIATION \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_VARIATION ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_VARIATION ) ) A macro that returns true whenever a face object has been altered by FT_Set_MM_Design_Coordinates , FT_Set_Var_Design_Coordinates , FT_Set_Var_Blend_Coordinates , or FT_Set_MM_WeightVector . since 2.9","title":"Font Testing Macros"},{"location":"ft2-font_testing_macros.html#font-testing-macros","text":"","title":"Font Testing Macros"},{"location":"ft2-font_testing_macros.html#synopsis","text":"Macros to test the most important font properties. It is recommended to use these high-level macros instead of directly testing the corresponding flags, which are scattered over various structures.","title":"Synopsis"},{"location":"ft2-font_testing_macros.html#ft_has_horizontal","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_HORIZONTAL ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_HORIZONTAL ) ) A macro that returns true whenever a face object contains horizontal metrics (this is true for all font formats though).","title":"FT_HAS_HORIZONTAL"},{"location":"ft2-font_testing_macros.html#ft_has_vertical","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_VERTICAL ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_VERTICAL ) ) A macro that returns true whenever a face object contains real vertical metrics (and not only synthesized ones).","title":"FT_HAS_VERTICAL"},{"location":"ft2-font_testing_macros.html#ft_has_kerning","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_KERNING ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_KERNING ) ) A macro that returns true whenever a face object contains kerning data that can be accessed with FT_Get_Kerning .","title":"FT_HAS_KERNING"},{"location":"ft2-font_testing_macros.html#ft_has_fixed_sizes","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_FIXED_SIZES ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_FIXED_SIZES ) ) A macro that returns true whenever a face object contains some embedded bitmaps. See the available_sizes field of the FT_FaceRec structure.","title":"FT_HAS_FIXED_SIZES"},{"location":"ft2-font_testing_macros.html#ft_has_glyph_names","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_GLYPH_NAMES ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) ) A macro that returns true whenever a face object contains some glyph names that can be accessed through FT_Get_Glyph_Name .","title":"FT_HAS_GLYPH_NAMES"},{"location":"ft2-font_testing_macros.html#ft_has_color","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_COLOR ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_COLOR ) ) A macro that returns true whenever a face object contains tables for color glyphs.","title":"FT_HAS_COLOR"},{"location":"ft2-font_testing_macros.html#ft_has_multiple_masters","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_MULTIPLE_MASTERS ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS ) ) A macro that returns true whenever a face object contains some multiple masters. The functions provided by FT_MULTIPLE_MASTERS_H are then available to choose the exact design you want.","title":"FT_HAS_MULTIPLE_MASTERS"},{"location":"ft2-font_testing_macros.html#ft_has_svg","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_SVG ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SVG ) ) A macro that returns true whenever a face object contains an \u2018SVG \u2019 OpenType table.","title":"FT_HAS_SVG"},{"location":"ft2-font_testing_macros.html#ft_has_sbix","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_SBIX ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SBIX ) ) A macro that returns true whenever a face object contains an \u2018sbix\u2019 OpenType table and outline glyphs. Currently, FreeType only supports bitmap glyphs in PNG format for this table (i.e., JPEG and TIFF formats are unsupported, as are Apple-specific formats not part of the OpenType specification).","title":"FT_HAS_SBIX"},{"location":"ft2-font_testing_macros.html#ft_has_sbix_overlay","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_SBIX_OVERLAY ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SBIX_OVERLAY ) ) A macro that returns true whenever a face object contains an \u2018sbix\u2019 OpenType table with bit 1 in its flags field set, instructing the application to overlay the bitmap strike with the corresponding outline glyph. See FT_HAS_SBIX for pseudo code how to use it.","title":"FT_HAS_SBIX_OVERLAY"},{"location":"ft2-font_testing_macros.html#ft_is_sfnt","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_SFNT ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SFNT ) ) A macro that returns true whenever a face object contains a font whose format is based on the SFNT storage scheme. This usually means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded bitmap fonts. If this macro is true, all functions defined in FT_SFNT_NAMES_H and FT_TRUETYPE_TABLES_H are available.","title":"FT_IS_SFNT"},{"location":"ft2-font_testing_macros.html#ft_is_scalable","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_SCALABLE ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_SCALABLE ) ) A macro that returns true whenever a face object contains a scalable font face (true for TrueType, Type 1, Type 42, CID, OpenType/CFF, and PFR font formats).","title":"FT_IS_SCALABLE"},{"location":"ft2-font_testing_macros.html#ft_is_fixed_width","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_FIXED_WIDTH ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_FIXED_WIDTH ) ) A macro that returns true whenever a face object contains a font face that contains fixed-width (or \u2018monospace\u2019, \u2018fixed-pitch\u2019, etc.) glyphs.","title":"FT_IS_FIXED_WIDTH"},{"location":"ft2-font_testing_macros.html#ft_is_cid_keyed","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_CID_KEYED ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_CID_KEYED ) ) A macro that returns true whenever a face object contains a CID-keyed font. See the discussion of FT_FACE_FLAG_CID_KEYED for more details. If this macro is true, all functions defined in FT_CID_H are available.","title":"FT_IS_CID_KEYED"},{"location":"ft2-font_testing_macros.html#ft_is_tricky","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_TRICKY ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_TRICKY ) ) A macro that returns true whenever a face represents a \u2018tricky\u2019 font. See the discussion of FT_FACE_FLAG_TRICKY for more details.","title":"FT_IS_TRICKY"},{"location":"ft2-font_testing_macros.html#ft_is_named_instance","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_NAMED_INSTANCE ( face ) \\ ( !!( (face)->face_index & 0x7FFF0000L ) ) A macro that returns true whenever a face object is a named instance of a GX or OpenType variation font. [Since 2.9] Changing the design coordinates with FT_Set_Var_Design_Coordinates or FT_Set_Var_Blend_Coordinates does not influence the return value of this macro (only FT_Set_Named_Instance does that).","title":"FT_IS_NAMED_INSTANCE"},{"location":"ft2-font_testing_macros.html#ft_is_variation","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_IS_VARIATION ( face ) \\ ( !!( (face)->face_flags & FT_FACE_FLAG_VARIATION ) ) A macro that returns true whenever a face object has been altered by FT_Set_MM_Design_Coordinates , FT_Set_Var_Design_Coordinates , FT_Set_Var_Blend_Coordinates , or FT_Set_MM_WeightVector .","title":"FT_IS_VARIATION"},{"location":"ft2-gasp_table.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb Gasp Table Gasp Table \u00b6 Synopsis \u00b6 The function FT_Get_Gasp can be used to query a TrueType or OpenType font for specific entries in its \u2018gasp\u2019 table, if any. This is mainly useful when implementing native TrueType hinting with the bytecode interpreter to duplicate the Windows text rendering results. FT_GASP_XXX \u00b6 Defined in FT_GASP_H (freetype/ftgasp.h). # define FT_GASP_NO_TABLE -1 # define FT_GASP_DO_GRIDFIT 0x01 # define FT_GASP_DO_GRAY 0x02 # define FT_GASP_SYMMETRIC_GRIDFIT 0x04 # define FT_GASP_SYMMETRIC_SMOOTHING 0x08 A list of values and/or bit-flags returned by the FT_Get_Gasp function. values FT_GASP_NO_TABLE This special value means that there is no GASP table in this face. It is up to the client to decide what to do. FT_GASP_DO_GRIDFIT Grid-fitting and hinting should be performed at the specified ppem. This really means TrueType bytecode interpretation. If this bit is not set, no hinting gets applied. FT_GASP_DO_GRAY Anti-aliased rendering should be performed at the specified ppem. If not set, do monochrome rendering. FT_GASP_SYMMETRIC_SMOOTHING If set, smoothing along multiple axes must be used with ClearType. FT_GASP_SYMMETRIC_GRIDFIT Grid-fitting must be used with ClearType's symmetric smoothing. note The bit-flags FT_GASP_DO_GRIDFIT and FT_GASP_DO_GRAY are to be used for standard font rasterization only. Independently of that, FT_GASP_SYMMETRIC_SMOOTHING and FT_GASP_SYMMETRIC_GRIDFIT are to be used if ClearType is enabled (and FT_GASP_DO_GRIDFIT and FT_GASP_DO_GRAY are consequently ignored). \u2018ClearType\u2019 is Microsoft's implementation of LCD rendering, partly protected by patents. since 2.3.0 FT_Get_Gasp \u00b6 Defined in FT_GASP_H (freetype/ftgasp.h). FT_EXPORT( FT_Int ) FT_Get_Gasp ( FT_Face face, FT_UInt ppem ); For a TrueType or OpenType font file, return the rasterizer behaviour flags from the font's \u2018gasp\u2019 table corresponding to a given character pixel size. input face The source face handle. ppem The vertical character pixel size. return Bit flags (see FT_GASP_XXX ), or FT_GASP_NO_TABLE if there is no \u2018gasp\u2019 table in the face. note If you want to use the MM functionality of OpenType variation fonts (i.e., using FT_Set_Var_Design_Coordinates and friends), call this function after setting an instance since the return values can change. since 2.3.0","title":"Gasp Table"},{"location":"ft2-gasp_table.html#gasp-table","text":"","title":"Gasp Table"},{"location":"ft2-gasp_table.html#synopsis","text":"The function FT_Get_Gasp can be used to query a TrueType or OpenType font for specific entries in its \u2018gasp\u2019 table, if any. This is mainly useful when implementing native TrueType hinting with the bytecode interpreter to duplicate the Windows text rendering results.","title":"Synopsis"},{"location":"ft2-gasp_table.html#ft_gasp_xxx","text":"Defined in FT_GASP_H (freetype/ftgasp.h). # define FT_GASP_NO_TABLE -1 # define FT_GASP_DO_GRIDFIT 0x01 # define FT_GASP_DO_GRAY 0x02 # define FT_GASP_SYMMETRIC_GRIDFIT 0x04 # define FT_GASP_SYMMETRIC_SMOOTHING 0x08 A list of values and/or bit-flags returned by the FT_Get_Gasp function.","title":"FT_GASP_XXX"},{"location":"ft2-gasp_table.html#ft_get_gasp","text":"Defined in FT_GASP_H (freetype/ftgasp.h). FT_EXPORT( FT_Int ) FT_Get_Gasp ( FT_Face face, FT_UInt ppem ); For a TrueType or OpenType font file, return the rasterizer behaviour flags from the font's \u2018gasp\u2019 table corresponding to a given character pixel size.","title":"FT_Get_Gasp"},{"location":"ft2-glyph_management.html","text":"FreeType \u00bb Docs \u00bb Extended API \u00bb Glyph Management Glyph Management \u00b6 Synopsis \u00b6 This section contains definitions used to manage glyph data through generic FT_Glyph objects. Each of them can contain a bitmap, a vector outline, or even images in other formats. These objects are detached from FT_Face , contrary to FT_GlyphSlot . FT_Glyph \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_GlyphRec_* FT_Glyph ; Handle to an object used to model generic glyph images. It is a pointer to the FT_GlyphRec structure and can contain a glyph bitmap or pointer. note Glyph objects are not owned by the library. You must thus release them manually (through FT_Done_Glyph ) before calling FT_Done_FreeType . FT_GlyphRec \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_GlyphRec_ { FT_Library library; const FT_Glyph_Class* clazz; FT_Glyph_Format format; FT_Vector advance; } FT_GlyphRec ; The root glyph structure contains a given glyph image plus its advance width in 16.16 fixed-point format. fields library A handle to the FreeType library object. clazz A pointer to the glyph's class. Private. format The format of the glyph's image. advance A 16.16 vector that gives the glyph's advance width. FT_BitmapGlyph \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_BitmapGlyphRec_* FT_BitmapGlyph ; A handle to an object used to model a bitmap glyph image. This is a \u2018sub-class\u2019 of FT_Glyph , and a pointer to FT_BitmapGlyphRec . FT_BitmapGlyphRec \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_BitmapGlyphRec_ { FT_GlyphRec root; FT_Int left; FT_Int top; FT_Bitmap bitmap; } FT_BitmapGlyphRec ; A structure used for bitmap glyph images. This really is a \u2018sub-class\u2019 of FT_GlyphRec . fields root The root fields of FT_Glyph . left The left-side bearing, i.e., the horizontal distance from the current pen position to the left border of the glyph bitmap. top The top-side bearing, i.e., the vertical distance from the current pen position to the top border of the glyph bitmap. This distance is positive for upwards y! bitmap A descriptor for the bitmap. note You can typecast an FT_Glyph to FT_BitmapGlyph if you have glyph->format == FT_GLYPH_FORMAT_BITMAP . This lets you access the bitmap's contents easily. The corresponding pixel buffer is always owned by FT_BitmapGlyph and is thus created and destroyed with it. FT_OutlineGlyph \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_OutlineGlyphRec_* FT_OutlineGlyph ; A handle to an object used to model an outline glyph image. This is a \u2018sub-class\u2019 of FT_Glyph , and a pointer to FT_OutlineGlyphRec . FT_OutlineGlyphRec \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_OutlineGlyphRec_ { FT_GlyphRec root; FT_Outline outline; } FT_OutlineGlyphRec ; A structure used for outline (vectorial) glyph images. This really is a \u2018sub-class\u2019 of FT_GlyphRec . fields root The root FT_Glyph fields. outline A descriptor for the outline. note You can typecast an FT_Glyph to FT_OutlineGlyph if you have glyph->format == FT_GLYPH_FORMAT_OUTLINE . This lets you access the outline's content easily. As the outline is extracted from a glyph slot, its coordinates are expressed normally in 26.6 pixels, unless the flag FT_LOAD_NO_SCALE was used in FT_Load_Glyph or FT_Load_Char . The outline's tables are always owned by the object and are destroyed with it. FT_SvgGlyph \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_SvgGlyphRec_* FT_SvgGlyph ; A handle to an object used to model an SVG glyph. This is a \u2018sub-class\u2019 of FT_Glyph , and a pointer to FT_SvgGlyphRec . since 2.12 FT_SvgGlyphRec \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_SvgGlyphRec_ { FT_GlyphRec root; FT_Byte * svg_document; FT_ULong svg_document_length; FT_UInt glyph_index; FT_Size_Metrics metrics; FT_UShort units_per_EM; FT_UShort start_glyph_id; FT_UShort end_glyph_id; FT_Matrix transform; FT_Vector delta; } FT_SvgGlyphRec ; A structure used for OT-SVG glyphs. This is a \u2018sub-class\u2019 of FT_GlyphRec . fields root The root FT_GlyphRec fields. svg_document A pointer to the SVG document. svg_document_length The length of svg_document . glyph_index The index of the glyph to be rendered. metrics A metrics object storing the size information. units_per_EM The size of the EM square. start_glyph_id The first glyph ID in the glyph range covered by this document. end_glyph_id The last glyph ID in the glyph range covered by this document. transform A 2x2 transformation matrix to apply to the glyph while rendering it. delta Translation to apply to the glyph while rendering. note The Glyph Management API requires FT_Glyph or its \u2018sub-class\u2019 to have all the information needed to completely define the glyph's rendering. Outline-based glyphs can directly apply transformations to the outline but this is not possible for an SVG document that hasn't been parsed. Therefore, the transformation is stored along with the document. In the absence of a \u2018ViewBox\u2019 or \u2018Width\u2019/'Height' attribute, the size of the ViewPort should be assumed to be \u2018units_per_EM\u2019. FT_New_Glyph \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_New_Glyph ( FT_Library library, FT_Glyph_Format format, FT_Glyph *aglyph ); A function used to create a new empty glyph image. Note that the created FT_Glyph object must be released with FT_Done_Glyph . input library A handle to the FreeType library object. format The format of the glyph's image. output aglyph A handle to the glyph object. return FreeType error code. 0 means success. since 2.10 FT_Get_Glyph \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Get_Glyph ( FT_GlyphSlot slot, FT_Glyph *aglyph ); A function used to extract a glyph image from a slot. Note that the created FT_Glyph object must be released with FT_Done_Glyph . input slot A handle to the source glyph slot. output aglyph A handle to the glyph object. NULL in case of error. return FreeType error code. 0 means success. note Because *aglyph->advance.x and *aglyph->advance.y are 16.16 fixed-point numbers, slot->advance.x and slot->advance.y (which are in 26.6 fixed-point format) must be in the range ]-32768;32768[. FT_Glyph_Copy \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Glyph_Copy ( FT_Glyph source, FT_Glyph *target ); A function used to copy a glyph image. Note that the created FT_Glyph object must be released with FT_Done_Glyph . input source A handle to the source glyph object. output target A handle to the target glyph object. NULL in case of error. return FreeType error code. 0 means success. FT_Glyph_Transform \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Glyph_Transform ( FT_Glyph glyph, const FT_Matrix * matrix, const FT_Vector * delta ); Transform a glyph image if its format is scalable. inout glyph A handle to the target glyph object. input matrix A pointer to a 2x2 matrix to apply. delta A pointer to a 2d vector to apply. Coordinates are expressed in 1/64 of a pixel. return FreeType error code (if not 0, the glyph format is not scalable). note The 2x2 transformation matrix is also applied to the glyph's advance vector. FT_Glyph_BBox_Mode \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef enum FT_Glyph_BBox_Mode_ { FT_GLYPH_BBOX_UNSCALED = 0, FT_GLYPH_BBOX_SUBPIXELS = 0, FT_GLYPH_BBOX_GRIDFIT = 1, FT_GLYPH_BBOX_TRUNCATE = 2, FT_GLYPH_BBOX_PIXELS = 3 } FT_Glyph_BBox_Mode ; /* these constants are deprecated; use the corresponding */ /* ` FT_Glyph_BBox_Mode ` values instead */ # define ft_glyph_bbox_unscaled FT_GLYPH_BBOX_UNSCALED # define ft_glyph_bbox_subpixels FT_GLYPH_BBOX_SUBPIXELS # define ft_glyph_bbox_gridfit FT_GLYPH_BBOX_GRIDFIT # define ft_glyph_bbox_truncate FT_GLYPH_BBOX_TRUNCATE # define ft_glyph_bbox_pixels FT_GLYPH_BBOX_PIXELS The mode how the values of FT_Glyph_Get_CBox are returned. values FT_GLYPH_BBOX_UNSCALED Return unscaled font units. FT_GLYPH_BBOX_SUBPIXELS Return unfitted 26.6 coordinates. FT_GLYPH_BBOX_GRIDFIT Return grid-fitted 26.6 coordinates. FT_GLYPH_BBOX_TRUNCATE Return coordinates in integer pixels. FT_GLYPH_BBOX_PIXELS Return grid-fitted pixel coordinates. FT_Glyph_Get_CBox \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( void ) FT_Glyph_Get_CBox ( FT_Glyph glyph, FT_UInt bbox_mode, FT_BBox *acbox ); Return a glyph's \u2018control box\u2019. The control box encloses all the outline's points, including Bezier control points. Though it coincides with the exact bounding box for most glyphs, it can be slightly larger in some situations (like when rotating an outline that contains Bezier outside arcs). Computing the control box is very fast, while getting the bounding box can take much more time as it needs to walk over all segments and arcs in the outline. To get the latter, you can use the \u2018ftbbox\u2019 component, which is dedicated to this single task. input glyph A handle to the source glyph object. mode The mode that indicates how to interpret the returned bounding box values. output acbox The glyph coordinate bounding box. Coordinates are expressed in 1/64 of pixels if it is grid-fitted. note Coordinates are relative to the glyph origin, using the y upwards convention. If the glyph has been loaded with FT_LOAD_NO_SCALE , bbox_mode must be set to FT_GLYPH_BBOX_UNSCALED to get unscaled font units in 26.6 pixel format. The value FT_GLYPH_BBOX_SUBPIXELS is another name for this constant. If the font is tricky and the glyph has been loaded with FT_LOAD_NO_SCALE , the resulting CBox is meaningless. To get reasonable values for the CBox it is necessary to load the glyph at a large ppem value (so that the hinting instructions can properly shift and scale the subglyphs), then extracting the CBox, which can be eventually converted back to font units. Note that the maximum coordinates are exclusive, which means that one can compute the width and height of the glyph image (be it in integer or 26.6 pixels) as: width = bbox.xMax - bbox.xMin; height = bbox.yMax - bbox.yMin; Note also that for 26.6 coordinates, if bbox_mode is set to FT_GLYPH_BBOX_GRIDFIT , the coordinates will also be grid-fitted, which corresponds to: bbox.xMin = FLOOR(bbox.xMin); bbox.yMin = FLOOR(bbox.yMin); bbox.xMax = CEILING(bbox.xMax); bbox.yMax = CEILING(bbox.yMax); To get the bbox in pixel coordinates, set bbox_mode to FT_GLYPH_BBOX_TRUNCATE . To get the bbox in grid-fitted pixel coordinates, set bbox_mode to FT_GLYPH_BBOX_PIXELS . FT_Glyph_To_Bitmap \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Glyph_To_Bitmap ( FT_Glyph * the_glyph, FT_Render_Mode render_mode, const FT_Vector * origin, FT_Bool destroy ); Convert a given glyph object to a bitmap glyph object. inout the_glyph A pointer to a handle to the target glyph. input render_mode An enumeration that describes how the data is rendered. origin A pointer to a vector used to translate the glyph image before rendering. Can be 0 (if no translation). The origin is expressed in 26.6 pixels. destroy A boolean that indicates that the original glyph image should be destroyed by this function. It is never destroyed in case of error. return FreeType error code. 0 means success. note This function does nothing if the glyph format isn't scalable. The glyph image is translated with the origin vector before rendering. The first parameter is a pointer to an FT_Glyph handle that will be replaced by this function (with newly allocated data). Typically, you would do something like the following (omitting error handling). FT_Glyph glyph; FT_BitmapGlyph glyph_bitmap; // load glyph error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAULT ); // extract glyph image error = FT_Get_Glyph( face->glyph, &glyph ); // convert to a bitmap (default render mode + destroying old) if ( glyph->format != FT_GLYPH_FORMAT_BITMAP ) { error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL, 0, 1 ); if ( error ) // `glyph' unchanged ... } // access bitmap content by typecasting glyph_bitmap = (FT_BitmapGlyph)glyph; // do funny stuff with it, like blitting/drawing ... // discard glyph image (bitmap or not) FT_Done_Glyph( glyph ); Here is another example, again without error handling. FT_Glyph glyphs[MAX_GLYPHS] ... for ( idx = 0; i < MAX_GLYPHS; i++ ) error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) || FT_Get_Glyph ( face->glyph, &glyphs[idx] ); ... for ( idx = 0; i < MAX_GLYPHS; i++ ) { FT_Glyph bitmap = glyphs[idx]; ... // after this call, `bitmap' no longer points into // the `glyphs' array (and the old value isn't destroyed) FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 ); ... FT_Done_Glyph( bitmap ); } ... for ( idx = 0; i < MAX_GLYPHS; i++ ) FT_Done_Glyph( glyphs[idx] ); FT_Done_Glyph \u00b6 Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( void ) FT_Done_Glyph ( FT_Glyph glyph ); Destroy a given glyph. input glyph A handle to the target glyph object. Can be NULL .","title":"Glyph Management"},{"location":"ft2-glyph_management.html#glyph-management","text":"","title":"Glyph Management"},{"location":"ft2-glyph_management.html#synopsis","text":"This section contains definitions used to manage glyph data through generic FT_Glyph objects. Each of them can contain a bitmap, a vector outline, or even images in other formats. These objects are detached from FT_Face , contrary to FT_GlyphSlot .","title":"Synopsis"},{"location":"ft2-glyph_management.html#ft_glyph","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_GlyphRec_* FT_Glyph ; Handle to an object used to model generic glyph images. It is a pointer to the FT_GlyphRec structure and can contain a glyph bitmap or pointer.","title":"FT_Glyph"},{"location":"ft2-glyph_management.html#ft_glyphrec","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_GlyphRec_ { FT_Library library; const FT_Glyph_Class* clazz; FT_Glyph_Format format; FT_Vector advance; } FT_GlyphRec ; The root glyph structure contains a given glyph image plus its advance width in 16.16 fixed-point format.","title":"FT_GlyphRec"},{"location":"ft2-glyph_management.html#ft_bitmapglyph","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_BitmapGlyphRec_* FT_BitmapGlyph ; A handle to an object used to model a bitmap glyph image. This is a \u2018sub-class\u2019 of FT_Glyph , and a pointer to FT_BitmapGlyphRec .","title":"FT_BitmapGlyph"},{"location":"ft2-glyph_management.html#ft_bitmapglyphrec","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_BitmapGlyphRec_ { FT_GlyphRec root; FT_Int left; FT_Int top; FT_Bitmap bitmap; } FT_BitmapGlyphRec ; A structure used for bitmap glyph images. This really is a \u2018sub-class\u2019 of FT_GlyphRec .","title":"FT_BitmapGlyphRec"},{"location":"ft2-glyph_management.html#ft_outlineglyph","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_OutlineGlyphRec_* FT_OutlineGlyph ; A handle to an object used to model an outline glyph image. This is a \u2018sub-class\u2019 of FT_Glyph , and a pointer to FT_OutlineGlyphRec .","title":"FT_OutlineGlyph"},{"location":"ft2-glyph_management.html#ft_outlineglyphrec","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_OutlineGlyphRec_ { FT_GlyphRec root; FT_Outline outline; } FT_OutlineGlyphRec ; A structure used for outline (vectorial) glyph images. This really is a \u2018sub-class\u2019 of FT_GlyphRec .","title":"FT_OutlineGlyphRec"},{"location":"ft2-glyph_management.html#ft_svgglyph","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_SvgGlyphRec_* FT_SvgGlyph ; A handle to an object used to model an SVG glyph. This is a \u2018sub-class\u2019 of FT_Glyph , and a pointer to FT_SvgGlyphRec .","title":"FT_SvgGlyph"},{"location":"ft2-glyph_management.html#ft_svgglyphrec","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef struct FT_SvgGlyphRec_ { FT_GlyphRec root; FT_Byte * svg_document; FT_ULong svg_document_length; FT_UInt glyph_index; FT_Size_Metrics metrics; FT_UShort units_per_EM; FT_UShort start_glyph_id; FT_UShort end_glyph_id; FT_Matrix transform; FT_Vector delta; } FT_SvgGlyphRec ; A structure used for OT-SVG glyphs. This is a \u2018sub-class\u2019 of FT_GlyphRec .","title":"FT_SvgGlyphRec"},{"location":"ft2-glyph_management.html#ft_new_glyph","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_New_Glyph ( FT_Library library, FT_Glyph_Format format, FT_Glyph *aglyph ); A function used to create a new empty glyph image. Note that the created FT_Glyph object must be released with FT_Done_Glyph .","title":"FT_New_Glyph"},{"location":"ft2-glyph_management.html#ft_get_glyph","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Get_Glyph ( FT_GlyphSlot slot, FT_Glyph *aglyph ); A function used to extract a glyph image from a slot. Note that the created FT_Glyph object must be released with FT_Done_Glyph .","title":"FT_Get_Glyph"},{"location":"ft2-glyph_management.html#ft_glyph_copy","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Glyph_Copy ( FT_Glyph source, FT_Glyph *target ); A function used to copy a glyph image. Note that the created FT_Glyph object must be released with FT_Done_Glyph .","title":"FT_Glyph_Copy"},{"location":"ft2-glyph_management.html#ft_glyph_transform","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Glyph_Transform ( FT_Glyph glyph, const FT_Matrix * matrix, const FT_Vector * delta ); Transform a glyph image if its format is scalable.","title":"FT_Glyph_Transform"},{"location":"ft2-glyph_management.html#ft_glyph_bbox_mode","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). typedef enum FT_Glyph_BBox_Mode_ { FT_GLYPH_BBOX_UNSCALED = 0, FT_GLYPH_BBOX_SUBPIXELS = 0, FT_GLYPH_BBOX_GRIDFIT = 1, FT_GLYPH_BBOX_TRUNCATE = 2, FT_GLYPH_BBOX_PIXELS = 3 } FT_Glyph_BBox_Mode ; /* these constants are deprecated; use the corresponding */ /* ` FT_Glyph_BBox_Mode ` values instead */ # define ft_glyph_bbox_unscaled FT_GLYPH_BBOX_UNSCALED # define ft_glyph_bbox_subpixels FT_GLYPH_BBOX_SUBPIXELS # define ft_glyph_bbox_gridfit FT_GLYPH_BBOX_GRIDFIT # define ft_glyph_bbox_truncate FT_GLYPH_BBOX_TRUNCATE # define ft_glyph_bbox_pixels FT_GLYPH_BBOX_PIXELS The mode how the values of FT_Glyph_Get_CBox are returned.","title":"FT_Glyph_BBox_Mode"},{"location":"ft2-glyph_management.html#ft_glyph_get_cbox","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( void ) FT_Glyph_Get_CBox ( FT_Glyph glyph, FT_UInt bbox_mode, FT_BBox *acbox ); Return a glyph's \u2018control box\u2019. The control box encloses all the outline's points, including Bezier control points. Though it coincides with the exact bounding box for most glyphs, it can be slightly larger in some situations (like when rotating an outline that contains Bezier outside arcs). Computing the control box is very fast, while getting the bounding box can take much more time as it needs to walk over all segments and arcs in the outline. To get the latter, you can use the \u2018ftbbox\u2019 component, which is dedicated to this single task.","title":"FT_Glyph_Get_CBox"},{"location":"ft2-glyph_management.html#ft_glyph_to_bitmap","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( FT_Error ) FT_Glyph_To_Bitmap ( FT_Glyph * the_glyph, FT_Render_Mode render_mode, const FT_Vector * origin, FT_Bool destroy ); Convert a given glyph object to a bitmap glyph object.","title":"FT_Glyph_To_Bitmap"},{"location":"ft2-glyph_management.html#ft_done_glyph","text":"Defined in FT_GLYPH_H (freetype/ftglyph.h). FT_EXPORT( void ) FT_Done_Glyph ( FT_Glyph glyph ); Destroy a given glyph.","title":"FT_Done_Glyph"},{"location":"ft2-glyph_retrieval.html","text":"FreeType \u00bb Docs \u00bb Core API \u00bb Glyph Retrieval Glyph Retrieval \u00b6 Synopsis \u00b6 The functions and structures collected in this section operate on single glyphs, of which FT_Load_Glyph is most important. FT_GlyphSlot \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_GlyphSlotRec_* FT_GlyphSlot ; A handle to a given \u2018glyph slot\u2019. A slot is a container that can hold any of the glyphs contained in its parent face. In other words, each time you call FT_Load_Glyph or FT_Load_Char , the slot's content is erased by the new glyph data, i.e., the glyph's metrics, its image (bitmap or outline), and other control information. also See FT_GlyphSlotRec for the publicly accessible glyph fields. FT_GlyphSlotRec \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_GlyphSlotRec_ { FT_Library library; FT_Face face; FT_GlyphSlot next; FT_UInt glyph_index; /* new in 2.10; was reserved previously */ FT_Generic generic; FT_Glyph_Metrics metrics; FT_Fixed linearHoriAdvance; FT_Fixed linearVertAdvance; FT_Vector advance; FT_Glyph_Format format; FT_Bitmap bitmap; FT_Int bitmap_left; FT_Int bitmap_top; FT_Outline outline; FT_UInt num_subglyphs; FT_SubGlyph subglyphs; void * control_data; long control_len; FT_Pos lsb_delta; FT_Pos rsb_delta; void * other; FT_Slot_Internal internal; } FT_GlyphSlotRec ; FreeType root glyph slot class structure. A glyph slot is a container where individual glyphs can be loaded, be they in outline or bitmap format. fields library A handle to the FreeType library instance this slot belongs to. face A handle to the parent face object. next In some cases (like some font tools), several glyph slots per face object can be a good thing. As this is rare, the glyph slots are listed through a direct, single-linked list using its next field. glyph_index [Since 2.10] The glyph index passed as an argument to FT_Load_Glyph while initializing the glyph slot. generic A typeless pointer unused by the FreeType library or any of its drivers. It can be used by client applications to link their own data to each glyph slot object. metrics The metrics of the last loaded glyph in the slot. The returned values depend on the last load flags (see the FT_Load_Glyph API function) and can be expressed either in 26.6 fractional pixels or font units. Note that even when the glyph image is transformed, the metrics are not. linearHoriAdvance The advance width of the unhinted glyph. Its value is expressed in 16.16 fractional pixels, unless FT_LOAD_LINEAR_DESIGN is set when loading the glyph. This field can be important to perform correct WYSIWYG layout. Only relevant for scalable glyphs. linearVertAdvance The advance height of the unhinted glyph. Its value is expressed in 16.16 fractional pixels, unless FT_LOAD_LINEAR_DESIGN is set when loading the glyph. This field can be important to perform correct WYSIWYG layout. Only relevant for scalable glyphs. advance This shorthand is, depending on FT_LOAD_IGNORE_TRANSFORM , the transformed (hinted) advance width for the glyph, in 26.6 fractional pixel format. As specified with FT_LOAD_VERTICAL_LAYOUT , it uses either the horiAdvance or the vertAdvance value of metrics field. format This field indicates the format of the image contained in the glyph slot. Typically FT_GLYPH_FORMAT_BITMAP , FT_GLYPH_FORMAT_OUTLINE , or FT_GLYPH_FORMAT_COMPOSITE , but other values are possible. bitmap This field is used as a bitmap descriptor. Note that the address and content of the bitmap buffer can change between calls of FT_Load_Glyph and a few other functions. bitmap_left The bitmap's left bearing expressed in integer pixels. bitmap_top The bitmap's top bearing expressed in integer pixels. This is the distance from the baseline to the top-most glyph scanline, upwards y coordinates being positive . outline The outline descriptor for the current glyph image if its format is FT_GLYPH_FORMAT_OUTLINE . Once a glyph is loaded, outline can be transformed, distorted, emboldened, etc. However, it must not be freed. [Since 2.10.1] If FT_LOAD_NO_SCALE is set, outline coordinates of OpenType variation fonts for a selected instance are internally handled as 26.6 fractional font units but returned as (rounded) integers, as expected. To get unrounded font units, don't use FT_LOAD_NO_SCALE but load the glyph with FT_LOAD_NO_HINTING and scale it, using the font's units_per_EM value as the ppem. num_subglyphs The number of subglyphs in a composite glyph. This field is only valid for the composite glyph format that should normally only be loaded with the FT_LOAD_NO_RECURSE flag. subglyphs An array of subglyph descriptors for composite glyphs. There are num_subglyphs elements in there. Currently internal to FreeType. control_data Certain font drivers can also return the control data for a given glyph image (e.g. TrueType bytecode, Type 1 charstrings, etc.). This field is a pointer to such data; it is currently internal to FreeType. control_len This is the length in bytes of the control data. Currently internal to FreeType. other Reserved. lsb_delta The difference between hinted and unhinted left side bearing while auto-hinting is active. Zero otherwise. rsb_delta The difference between hinted and unhinted right side bearing while auto-hinting is active. Zero otherwise. note If FT_Load_Glyph is called with default flags (see FT_LOAD_DEFAULT ) the glyph image is loaded in the glyph slot in its native format (e.g., an outline glyph for TrueType and Type 1 formats). [Since 2.9] The prospective bitmap metrics are calculated according to FT_LOAD_TARGET_XXX and other flags even for the outline glyph, even if FT_LOAD_RENDER is not set. This image can later be converted into a bitmap by calling FT_Render_Glyph . This function searches the current renderer for the native image's format, then invokes it. The renderer is in charge of transforming the native image through the slot's face transformation fields, then converting it into a bitmap that is returned in slot->bitmap . Note that slot->bitmap_left and slot->bitmap_top are also used to specify the position of the bitmap relative to the current pen position (e.g., coordinates (0,0) on the baseline). Of course, slot->format is also changed to FT_GLYPH_FORMAT_BITMAP . Here is a small pseudo code fragment that shows how to use lsb_delta and rsb_delta to do fractional positioning of glyphs: FT_GlyphSlot slot = face->glyph; FT_Pos origin_x = 0; for all glyphs do FT_Outline_Translate( slot->outline, origin_x & 63, 0 ); origin_x += slot->advance.x; origin_x += slot->lsb_delta - slot->rsb_delta; endfor Here is another small pseudo code fragment that shows how to use lsb_delta and rsb_delta to improve integer positioning of glyphs: FT_GlyphSlot slot = face->glyph; FT_Pos origin_x = 0; FT_Pos prev_rsb_delta = 0; for all glyphs do if ( prev_rsb_delta - slot->lsb_delta > 32 ) origin_x -= 64; else if ( prev_rsb_delta - slot->lsb_delta < -31 ) origin_x += 64; prev_rsb_delta = slot->rsb_delta; origin_x += slot->advance.x; endfor If you use strong auto-hinting, you must apply these delta values! Otherwise you will experience far too large inter-glyph spacing at small rendering sizes in most cases. Note that it doesn't harm to use the above code for other hinting modes also, since the delta values are zero then. FT_Glyph_Metrics \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Glyph_Metrics_ { FT_Pos width; FT_Pos height; FT_Pos horiBearingX; FT_Pos horiBearingY; FT_Pos horiAdvance; FT_Pos vertBearingX; FT_Pos vertBearingY; FT_Pos vertAdvance; } FT_Glyph_Metrics ; A structure to model the metrics of a single glyph. The values are expressed in 26.6 fractional pixel format; if the flag FT_LOAD_NO_SCALE has been used while loading the glyph, values are expressed in font units instead. fields width The glyph's width. height The glyph's height. horiBearingX Left side bearing for horizontal layout. horiBearingY Top side bearing for horizontal layout. horiAdvance Advance width for horizontal layout. vertBearingX Left side bearing for vertical layout. vertBearingY Top side bearing for vertical layout. Larger positive values mean further below the vertical glyph origin. vertAdvance Advance height for vertical layout. Positive values mean the glyph has a positive advance downward. note If not disabled with FT_LOAD_NO_HINTING , the values represent dimensions of the hinted glyph (in case hinting is applicable). Stroking a glyph with an outside border does not increase horiAdvance or vertAdvance ; you have to manually adjust these values to account for the added width and height. FreeType doesn't use the \u2018VORG\u2019 table data for CFF fonts because it doesn't have an interface to quickly retrieve the glyph height. The y coordinate of the vertical origin can be simply computed as vertBearingY + height after loading a glyph. FT_Load_Glyph \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Load_Glyph ( FT_Face face, FT_UInt glyph_index, FT_Int32 load_flags ); Load a glyph into the glyph slot of a face object. inout face A handle to the target face object where the glyph is loaded. input glyph_index The index of the glyph in the font file. For CID-keyed fonts (either in PS or in CFF format) this argument specifies the CID value. load_flags A flag indicating what to load for this glyph. The FT_LOAD_XXX flags can be used to control the glyph loading process (e.g., whether the outline should be scaled, whether to load bitmaps or not, whether to hint the outline, etc). return FreeType error code. 0 means success. note For proper scaling and hinting, the active FT_Size object owned by the face has to be meaningfully initialized by calling FT_Set_Char_Size before this function, for example. The loaded glyph may be transformed. See FT_Set_Transform for the details. For subsetted CID-keyed fonts, FT_Err_Invalid_Argument is returned for invalid CID values (that is, for CID values that don't have a corresponding glyph in the font). See the discussion of the FT_FACE_FLAG_CID_KEYED flag for more details. If you receive FT_Err_Glyph_Too_Big , try getting the glyph outline at EM size, then scale it manually and fill it as a graphics operation. FT_LOAD_XXX \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_LOAD_DEFAULT 0x0 # define FT_LOAD_NO_SCALE ( 1L << 0 ) # define FT_LOAD_NO_HINTING ( 1L << 1 ) # define FT_LOAD_RENDER ( 1L << 2 ) # define FT_LOAD_NO_BITMAP ( 1L << 3 ) # define FT_LOAD_VERTICAL_LAYOUT ( 1L << 4 ) # define FT_LOAD_FORCE_AUTOHINT ( 1L << 5 ) # define FT_LOAD_CROP_BITMAP ( 1L << 6 ) # define FT_LOAD_PEDANTIC ( 1L << 7 ) # define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ( 1L << 9 ) # define FT_LOAD_NO_RECURSE ( 1L << 10 ) # define FT_LOAD_IGNORE_TRANSFORM ( 1L << 11 ) # define FT_LOAD_MONOCHROME ( 1L << 12 ) # define FT_LOAD_LINEAR_DESIGN ( 1L << 13 ) # define FT_LOAD_SBITS_ONLY ( 1L << 14 ) # define FT_LOAD_NO_AUTOHINT ( 1L << 15 ) /* Bits 16-19 are used by `FT_LOAD_TARGET_` */ # define FT_LOAD_COLOR ( 1L << 20 ) # define FT_LOAD_COMPUTE_METRICS ( 1L << 21 ) # define FT_LOAD_BITMAP_METRICS_ONLY ( 1L << 22 ) # define FT_LOAD_NO_SVG ( 1L << 24 ) A list of bit field constants for FT_Load_Glyph to indicate what kind of operations to perform during glyph loading. values FT_LOAD_DEFAULT Corresponding to 0, this value is used as the default glyph load operation. In this case, the following happens: FreeType looks for a bitmap for the glyph corresponding to the face's current size. If one is found, the function returns. The bitmap data can be accessed from the glyph slot (see note below). If no embedded bitmap is searched for or found, FreeType looks for a scalable outline. If one is found, it is loaded from the font file, scaled to device pixels, then \u2018hinted\u2019 to the pixel grid in order to optimize it. The outline data can be accessed from the glyph slot (see note below). Note that by default the glyph loader doesn't render outlines into bitmaps. The following flags are used to modify this default behaviour to more specific and useful cases. FT_LOAD_NO_SCALE Don't scale the loaded outline glyph but keep it in font units. This flag is also assumed if FT_Size owned by the face was not properly initialized. This flag implies FT_LOAD_NO_HINTING and FT_LOAD_NO_BITMAP , and unsets FT_LOAD_RENDER . If the font is \u2018tricky\u2019 (see FT_FACE_FLAG_TRICKY for more), using FT_LOAD_NO_SCALE usually yields meaningless outlines because the subglyphs must be scaled and positioned with hinting instructions. This can be solved by loading the font without FT_LOAD_NO_SCALE and setting the character size to font->units_per_EM . FT_LOAD_NO_HINTING Disable hinting. This generally generates \u2018blurrier\u2019 bitmap glyphs when the glyphs are rendered in any of the anti-aliased modes. See also the note below. This flag is implied by FT_LOAD_NO_SCALE . FT_LOAD_RENDER Call FT_Render_Glyph after the glyph is loaded. By default, the glyph is rendered in FT_RENDER_MODE_NORMAL mode. This can be overridden by FT_LOAD_TARGET_XXX or FT_LOAD_MONOCHROME . This flag is unset by FT_LOAD_NO_SCALE . FT_LOAD_NO_BITMAP Ignore bitmap strikes when loading. Bitmap-only fonts ignore this flag. FT_LOAD_NO_SCALE always sets this flag. FT_LOAD_SBITS_ONLY [Since 2.12] This is the opposite of FT_LOAD_NO_BITMAP , more or less: FT_Load_Glyph returns FT_Err_Invalid_Argument if the face contains a bitmap strike for the given size (or the strike selected by FT_Select_Size ) but there is no glyph in the strike. Note that this load flag was part of FreeType since version 2.0.6 but previously tagged as internal. FT_LOAD_VERTICAL_LAYOUT Load the glyph for vertical text layout. In particular, the advance value in the FT_GlyphSlotRec structure is set to the vertAdvance value of the metrics field. In case FT_HAS_VERTICAL doesn't return true, you shouldn't use this flag currently. Reason is that in this case vertical metrics get synthesized, and those values are not always consistent across various font formats. FT_LOAD_FORCE_AUTOHINT Prefer the auto-hinter over the font's native hinter. See also the note below. FT_LOAD_PEDANTIC Make the font driver perform pedantic verifications during glyph loading and hinting. This is mostly used to detect broken glyphs in fonts. By default, FreeType tries to handle broken fonts also. In particular, errors from the TrueType bytecode engine are not passed to the application if this flag is not set; this might result in partially hinted or distorted glyphs in case a glyph's bytecode is buggy. FT_LOAD_NO_RECURSE Don't load composite glyphs recursively. Instead, the font driver fills the num_subglyph and subglyphs values of the glyph slot; it also sets glyph->format to FT_GLYPH_FORMAT_COMPOSITE . The description of subglyphs can then be accessed with FT_Get_SubGlyph_Info . Don't use this flag for retrieving metrics information since some font drivers only return rudimentary data. This flag implies FT_LOAD_NO_SCALE and FT_LOAD_IGNORE_TRANSFORM . FT_LOAD_IGNORE_TRANSFORM Ignore the transform matrix set by FT_Set_Transform . FT_LOAD_MONOCHROME This flag is used with FT_LOAD_RENDER to indicate that you want to render an outline glyph to a 1-bit monochrome bitmap glyph, with 8 pixels packed into each byte of the bitmap data. Note that this has no effect on the hinting algorithm used. You should rather use FT_LOAD_TARGET_MONO so that the monochrome-optimized hinting algorithm is used. FT_LOAD_LINEAR_DESIGN Keep linearHoriAdvance and linearVertAdvance fields of FT_GlyphSlotRec in font units. See FT_GlyphSlotRec for details. FT_LOAD_NO_AUTOHINT Disable the auto-hinter. See also the note below. FT_LOAD_COLOR Load colored glyphs. FreeType searches in the following order; there are slight differences depending on the font format. [Since 2.5] Load embedded color bitmap images (provided FT_LOAD_NO_BITMAP is not set). The resulting color bitmaps, if available, have the FT_PIXEL_MODE_BGRA format, with pre-multiplied color channels. If the flag is not set and color bitmaps are found, they are converted to 256-level gray bitmaps, using the FT_PIXEL_MODE_GRAY format. [Since 2.12] If the glyph index maps to an entry in the face's \u2018SVG \u2019 table, load the associated SVG document from this table and set the format field of FT_GlyphSlotRec to FT_GLYPH_FORMAT_SVG ([since 2.13.1] provided FT_LOAD_NO_SVG is not set). Note that FreeType itself can't render SVG documents; however, the library provides hooks to seamlessly integrate an external renderer. See sections \u2018 The SVG driver \u2019 and \u2018 OpenType SVG Fonts \u2019 for more. [Since 2.10, experimental] If the glyph index maps to an entry in the face's \u2018COLR\u2019 table with a \u2018CPAL\u2019 palette table (as defined in the OpenType specification), make FT_Render_Glyph provide a default blending of the color glyph layers associated with the glyph index, using the same bitmap format as embedded color bitmap images. This is mainly for convenience and works only for glyphs in \u2018COLR\u2019 v0 tables (or glyphs in \u2018COLR\u2019 v1 tables that exclusively use v0 features). For full control of color layers use FT_Get_Color_Glyph_Layer and FreeType's color functions like FT_Palette_Select instead of setting FT_LOAD_COLOR for rendering so that the client application can handle blending by itself. FT_LOAD_NO_SVG [Since 2.13.1] Ignore SVG glyph data when loading. FT_LOAD_COMPUTE_METRICS [Since 2.6.1] Compute glyph metrics from the glyph data, without the use of bundled metrics tables (for example, the \u2018hdmx\u2019 table in TrueType fonts). This flag is mainly used by font validating or font editing applications, which need to ignore, verify, or edit those tables. Currently, this flag is only implemented for TrueType fonts. FT_LOAD_BITMAP_METRICS_ONLY [Since 2.7.1] Request loading of the metrics and bitmap image information of a (possibly embedded) bitmap glyph without allocating or copying the bitmap image data itself. No effect if the target glyph is not a bitmap image. This flag unsets FT_LOAD_RENDER . FT_LOAD_CROP_BITMAP Ignored. Deprecated. FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH Ignored. Deprecated. note By default, hinting is enabled and the font's native hinter (see FT_FACE_FLAG_HINTER ) is preferred over the auto-hinter. You can disable hinting by setting FT_LOAD_NO_HINTING or change the precedence by setting FT_LOAD_FORCE_AUTOHINT . You can also set FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be used at all. See the description of FT_FACE_FLAG_TRICKY for a special exception (affecting only a handful of Asian fonts). Besides deciding which hinter to use, you can also decide which hinting algorithm to use. See FT_LOAD_TARGET_XXX for details. Note that the auto-hinter needs a valid Unicode cmap (either a native one or synthesized by FreeType) for producing correct results. If a font provides an incorrect mapping (for example, assigning the character code U+005A, LATIN CAPITAL LETTER Z, to a glyph depicting a mathematical integral sign), the auto-hinter might produce useless results. FT_LOAD_TARGET_MODE \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_LOAD_TARGET_MODE ( x ) \\ FT_STATIC_CAST( FT_Render_Mode , ( (x) >> 16 ) & 15 ) Return the FT_Render_Mode corresponding to a given FT_LOAD_TARGET_XXX value. FT_LOAD_TARGET_XXX \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_LOAD_TARGET_( x ) ( FT_STATIC_CAST( FT_Int32 , (x) & 15 ) << 16 ) # define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL ) # define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT ) # define FT_LOAD_TARGET_MONO FT_LOAD_TARGET_( FT_RENDER_MODE_MONO ) # define FT_LOAD_TARGET_LCD FT_LOAD_TARGET_( FT_RENDER_MODE_LCD ) # define FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V ) A list of values to select a specific hinting algorithm for the hinter. You should OR one of these values to your load_flags when calling FT_Load_Glyph . Note that a font's native hinters may ignore the hinting algorithm you have specified (e.g., the TrueType bytecode interpreter). You can set FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used. values FT_LOAD_TARGET_NORMAL The default hinting algorithm, optimized for standard gray-level rendering. For monochrome output, use FT_LOAD_TARGET_MONO instead. FT_LOAD_TARGET_LIGHT A lighter hinting algorithm for gray-level modes. Many generated glyphs are fuzzier but better resemble their original shape. This is achieved by snapping glyphs to the pixel grid only vertically (Y-axis), as is done by FreeType's new CFF engine or Microsoft's ClearType font renderer. This preserves inter-glyph spacing in horizontal text. The snapping is done either by the native font driver, if the driver itself and the font support it, or by the auto-hinter. Advance widths are rounded to integer values; however, using the lsb_delta and rsb_delta fields of FT_GlyphSlotRec , it is possible to get fractional advance widths for subpixel positioning (which is recommended to use). If configuration option AF_CONFIG_OPTION_TT_SIZE_METRICS is active, TrueType-like metrics are used to make this mode behave similarly as in unpatched FreeType versions between 2.4.6 and 2.7.1 (inclusive). FT_LOAD_TARGET_MONO Strong hinting algorithm that should only be used for monochrome output. The result is probably unpleasant if the glyph is rendered in non-monochrome modes. Note that for outline fonts only the TrueType font driver has proper monochrome hinting support, provided the TTFs contain hints for B/W rendering (which most fonts no longer provide). If these conditions are not met it is very likely that you get ugly results at smaller sizes. FT_LOAD_TARGET_LCD A variant of FT_LOAD_TARGET_LIGHT optimized for horizontally decimated LCD displays. FT_LOAD_TARGET_LCD_V A variant of FT_LOAD_TARGET_NORMAL optimized for vertically decimated LCD displays. note You should use only one of the FT_LOAD_TARGET_XXX values in your load_flags . They can't be ORed. If FT_LOAD_RENDER is also set, the glyph is rendered in the corresponding mode (i.e., the mode that matches the used algorithm best). An exception is FT_LOAD_TARGET_MONO since it implies FT_LOAD_MONOCHROME . You can use a hinting algorithm that doesn't correspond to the same rendering mode. As an example, it is possible to use the \u2018light\u2019 hinting algorithm and have the results rendered in horizontal LCD pixel mode, with code like FT_Load_Glyph( face, glyph_index, load_flags | FT_LOAD_TARGET_LIGHT ); FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD ); In general, you should stick with one rendering mode. For example, switching between FT_LOAD_TARGET_NORMAL and FT_LOAD_TARGET_MONO enforces a lot of recomputation for TrueType fonts, which is slow. Another reason is caching: Selecting a different mode usually causes changes in both the outlines and the rasterized bitmaps; it is thus necessary to empty the cache after a mode switch to avoid false hits. FT_Render_Glyph \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Render_Glyph ( FT_GlyphSlot slot, FT_Render_Mode render_mode ); Convert a given glyph image to a bitmap. It does so by inspecting the glyph image format, finding the relevant renderer, and invoking it. inout slot A handle to the glyph slot containing the image to convert. input render_mode The render mode used to render the glyph image into a bitmap. See FT_Render_Mode for a list of possible values. If FT_RENDER_MODE_NORMAL is used, a previous call of FT_Load_Glyph with flag FT_LOAD_COLOR makes FT_Render_Glyph provide a default blending of colored glyph layers associated with the current glyph slot (provided the font contains such layers) instead of rendering the glyph slot's outline. This is an experimental feature; see FT_LOAD_COLOR for more information. return FreeType error code. 0 means success. note When FreeType outputs a bitmap of a glyph, it really outputs an alpha coverage map. If a pixel is completely covered by a filled-in outline, the bitmap contains 0xFF at that pixel, meaning that 0xFF/0xFF fraction of that pixel is covered, meaning the pixel is 100% black (or 0% bright). If a pixel is only 50% covered (value 0x80), the pixel is made 50% black (50% bright or a middle shade of grey). 0% covered means 0% black (100% bright or white). On high-DPI screens like on smartphones and tablets, the pixels are so small that their chance of being completely covered and therefore completely black are fairly good. On the low-DPI screens, however, the situation is different. The pixels are too large for most of the details of a glyph and shades of gray are the norm rather than the exception. This is relevant because all our screens have a second problem: they are not linear. 1 + 1 is not 2. Twice the value does not result in twice the brightness. When a pixel is only 50% covered, the coverage map says 50% black, and this translates to a pixel value of 128 when you use 8 bits per channel (0-255). However, this does not translate to 50% brightness for that pixel on our sRGB and gamma 2.2 screens. Due to their non-linearity, they dwell longer in the darks and only a pixel value of about 186 results in 50% brightness \u2013 128 ends up too dark on both bright and dark backgrounds. The net result is that dark text looks burnt-out, pixely and blotchy on bright background, bright text too frail on dark backgrounds, and colored text on colored background (for example, red on green) seems to have dark halos or \u2018dirt\u2019 around it. The situation is especially ugly for diagonal stems like in \u2018w\u2019 glyph shapes where the quality of FreeType's anti-aliasing depends on the correct display of grays. On high-DPI screens where smaller, fully black pixels reign supreme, this doesn't matter, but on our low-DPI screens with all the gray shades, it does. 0% and 100% brightness are the same things in linear and non-linear space, just all the shades in-between aren't. The blending function for placing text over a background is dst = alpha * src + (1 - alpha) * dst , which is known as the OVER operator. To correctly composite an anti-aliased pixel of a glyph onto a surface, take the foreground and background colors (e.g., in sRGB space) and apply gamma to get them in a linear space, use OVER to blend the two linear colors using the glyph pixel as the alpha value (remember, the glyph bitmap is an alpha coverage bitmap), and apply inverse gamma to the blended pixel and write it back to the image. Internal testing at Adobe found that a target inverse gamma of 1.8 for step 3 gives good results across a wide range of displays with an sRGB gamma curve or a similar one. This process can cost performance. There is an approximation that does not need to know about the background color; see https://bel.fi/alankila/lcd/ and https://bel.fi/alankila/lcd/alpcor.html for details. ATTENTION : Linear blending is even more important when dealing with subpixel-rendered glyphs to prevent color-fringing! A subpixel-rendered glyph must first be filtered with a filter that gives equal weight to the three color primaries and does not exceed a sum of 0x100, see section \u2018 Subpixel Rendering \u2019. Then the only difference to gray linear blending is that subpixel-rendered linear blending is done 3 times per pixel: red foreground subpixel to red background subpixel and so on for green and blue. FT_Render_Mode \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef enum FT_Render_Mode_ { FT_RENDER_MODE_NORMAL = 0, FT_RENDER_MODE_LIGHT , FT_RENDER_MODE_MONO , FT_RENDER_MODE_LCD , FT_RENDER_MODE_LCD_V , FT_RENDER_MODE_SDF , FT_RENDER_MODE_MAX } FT_Render_Mode ; /* these constants are deprecated; use the corresponding */ /* ` FT_Render_Mode ` values instead */ # define ft_render_mode_normal FT_RENDER_MODE_NORMAL # define ft_render_mode_mono FT_RENDER_MODE_MONO Render modes supported by FreeType 2. Each mode corresponds to a specific type of scanline conversion performed on the outline. For bitmap fonts and embedded bitmaps the bitmap->pixel_mode field in the FT_GlyphSlotRec structure gives the format of the returned bitmap. All modes except FT_RENDER_MODE_MONO use 256 levels of opacity, indicating pixel coverage. Use linear alpha blending and gamma correction to correctly render non-monochrome glyph bitmaps onto a surface; see FT_Render_Glyph . The FT_RENDER_MODE_SDF is a special render mode that uses up to 256 distance values, indicating the signed distance from the grid position to the nearest outline. values FT_RENDER_MODE_NORMAL Default render mode; it corresponds to 8-bit anti-aliased bitmaps. FT_RENDER_MODE_LIGHT This is equivalent to FT_RENDER_MODE_NORMAL . It is only defined as a separate value because render modes are also used indirectly to define hinting algorithm selectors. See FT_LOAD_TARGET_XXX for details. FT_RENDER_MODE_MONO This mode corresponds to 1-bit bitmaps (with 2 levels of opacity). FT_RENDER_MODE_LCD This mode corresponds to horizontal RGB and BGR subpixel displays like LCD screens. It produces 8-bit bitmaps that are 3 times the width of the original glyph outline in pixels, and which use the FT_PIXEL_MODE_LCD mode. FT_RENDER_MODE_LCD_V This mode corresponds to vertical RGB and BGR subpixel displays (like PDA screens, rotated LCD displays, etc.). It produces 8-bit bitmaps that are 3 times the height of the original glyph outline in pixels and use the FT_PIXEL_MODE_LCD_V mode. FT_RENDER_MODE_SDF This mode corresponds to 8-bit, single-channel signed distance field (SDF) bitmaps. Each pixel in the SDF grid is the value from the pixel's position to the nearest glyph's outline. The distances are calculated from the center of the pixel and are positive if they are filled by the outline (i.e., inside the outline) and negative otherwise. Check the note below on how to convert the output values to usable data. note The selected render mode only affects vector glyphs of a font. Embedded bitmaps often have a different pixel mode like FT_PIXEL_MODE_MONO . You can use FT_Bitmap_Convert to transform them into 8-bit pixmaps. For FT_RENDER_MODE_SDF the output bitmap buffer contains normalized distances that are packed into unsigned 8-bit values. To get pixel values in floating point representation use the following pseudo-C code for the conversion. // Load glyph and render using FT_RENDER_MODE_SDF, // then use the output buffer as follows. ... FT_Byte buffer = glyph->bitmap->buffer; for pixel in buffer { // `sd` is the signed distance and `spread` is the current spread; // the default spread is 2 and can be changed. float sd = (float)pixel - 128.0f; // Convert to pixel values. sd = ( sd / 128.0f ) * spread; // Store `sd` in a buffer or use as required. } FreeType has two rasterizers for generating SDF, namely: sdf for generating SDF directly from glyph's outline, and bsdf for generating SDF from rasterized bitmaps. Depending on the glyph type (i.e., outline or bitmap), one of the two rasterizers is chosen at runtime and used for generating SDFs. To force the use of bsdf you should render the glyph with any of the FreeType's other rendering modes (e.g., FT_RENDER_MODE_NORMAL ) and then re-render with FT_RENDER_MODE_SDF . There are some issues with stability and possible failures of the SDF renderers (specifically sdf ). The sdf rasterizer is sensitive to really small features (e.g., sharp turns that are less than 1 pixel) and imperfections in the glyph's outline, causing artifacts in the final output. The sdf rasterizer has limited support for handling intersecting contours and cannot handle self-intersecting contours whatsoever. Self-intersection happens when a single connected contour intersects itself at some point; having these in your font definitely poses a problem to the rasterizer and cause artifacts, too. Generating SDF for really small glyphs may result in undesirable output; the pixel grid (which stores distance information) becomes too coarse. Since the output buffer is normalized, precision at smaller spreads is greater than precision at larger spread values because the output range of [0..255] gets mapped to a smaller SDF range. A spread of 2 should be sufficient in most cases. Points (1) and (2) can be avoided by using the bsdf rasterizer, which is more stable than the sdf rasterizer in general. FT_Get_Kerning \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Get_Kerning ( FT_Face face, FT_UInt left_glyph, FT_UInt right_glyph, FT_UInt kern_mode, FT_Vector *akerning ); Return the kerning vector between two glyphs of the same face. input face A handle to a source face object. left_glyph The index of the left glyph in the kern pair. right_glyph The index of the right glyph in the kern pair. kern_mode See FT_Kerning_Mode for more information. Determines the scale and dimension of the returned kerning vector. output akerning The kerning vector. This is either in font units, fractional pixels (26.6 format), or pixels for scalable formats, and in pixels for fixed-sizes formats. return FreeType error code. 0 means success. note Only horizontal layouts (left-to-right & right-to-left) are supported by this method. Other layouts, or more sophisticated kernings, are out of the scope of this API function \u2013 they can be implemented through format-specific interfaces. Kerning for OpenType fonts implemented in a \u2018GPOS\u2019 table is not supported; use FT_HAS_KERNING to find out whether a font has data that can be extracted with FT_Get_Kerning . FT_Kerning_Mode \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef enum FT_Kerning_Mode_ { FT_KERNING_DEFAULT = 0, FT_KERNING_UNFITTED , FT_KERNING_UNSCALED } FT_Kerning_Mode ; /* these constants are deprecated; use the corresponding */ /* ` FT_Kerning_Mode ` values instead */ # define ft_kerning_default FT_KERNING_DEFAULT # define ft_kerning_unfitted FT_KERNING_UNFITTED # define ft_kerning_unscaled FT_KERNING_UNSCALED An enumeration to specify the format of kerning values returned by FT_Get_Kerning . values FT_KERNING_DEFAULT Return grid-fitted kerning distances in 26.6 fractional pixels. FT_KERNING_UNFITTED Return un-grid-fitted kerning distances in 26.6 fractional pixels. FT_KERNING_UNSCALED Return the kerning vector in original font units. note FT_KERNING_DEFAULT returns full pixel values; it also makes FreeType heuristically scale down kerning distances at small ppem values so that they don't become too big. Both FT_KERNING_DEFAULT and FT_KERNING_UNFITTED use the current horizontal scaling factor (as set e.g. with FT_Set_Char_Size ) to convert font units to pixels. FT_Get_Track_Kerning \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Get_Track_Kerning ( FT_Face face, FT_Fixed point_size, FT_Int degree, FT_Fixed * akerning ); Return the track kerning for a given face object at a given size. input face A handle to a source face object. point_size The point size in 16.16 fractional points. degree The degree of tightness. Increasingly negative values represent tighter track kerning, while increasingly positive values represent looser track kerning. Value zero means no track kerning. output akerning The kerning in 16.16 fractional points, to be uniformly applied between all glyphs. return FreeType error code. 0 means success. note Currently, only the Type 1 font driver supports track kerning, using data from AFM files (if attached with FT_Attach_File or FT_Attach_Stream ). Only very few AFM files come with track kerning data; please refer to Adobe's AFM specification for more details.","title":"Glyph Retrieval"},{"location":"ft2-glyph_retrieval.html#glyph-retrieval","text":"","title":"Glyph Retrieval"},{"location":"ft2-glyph_retrieval.html#synopsis","text":"The functions and structures collected in this section operate on single glyphs, of which FT_Load_Glyph is most important.","title":"Synopsis"},{"location":"ft2-glyph_retrieval.html#ft_glyphslot","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_GlyphSlotRec_* FT_GlyphSlot ; A handle to a given \u2018glyph slot\u2019. A slot is a container that can hold any of the glyphs contained in its parent face. In other words, each time you call FT_Load_Glyph or FT_Load_Char , the slot's content is erased by the new glyph data, i.e., the glyph's metrics, its image (bitmap or outline), and other control information.","title":"FT_GlyphSlot"},{"location":"ft2-glyph_retrieval.html#ft_glyphslotrec","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_GlyphSlotRec_ { FT_Library library; FT_Face face; FT_GlyphSlot next; FT_UInt glyph_index; /* new in 2.10; was reserved previously */ FT_Generic generic; FT_Glyph_Metrics metrics; FT_Fixed linearHoriAdvance; FT_Fixed linearVertAdvance; FT_Vector advance; FT_Glyph_Format format; FT_Bitmap bitmap; FT_Int bitmap_left; FT_Int bitmap_top; FT_Outline outline; FT_UInt num_subglyphs; FT_SubGlyph subglyphs; void * control_data; long control_len; FT_Pos lsb_delta; FT_Pos rsb_delta; void * other; FT_Slot_Internal internal; } FT_GlyphSlotRec ; FreeType root glyph slot class structure. A glyph slot is a container where individual glyphs can be loaded, be they in outline or bitmap format.","title":"FT_GlyphSlotRec"},{"location":"ft2-glyph_retrieval.html#ft_glyph_metrics","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Glyph_Metrics_ { FT_Pos width; FT_Pos height; FT_Pos horiBearingX; FT_Pos horiBearingY; FT_Pos horiAdvance; FT_Pos vertBearingX; FT_Pos vertBearingY; FT_Pos vertAdvance; } FT_Glyph_Metrics ; A structure to model the metrics of a single glyph. The values are expressed in 26.6 fractional pixel format; if the flag FT_LOAD_NO_SCALE has been used while loading the glyph, values are expressed in font units instead.","title":"FT_Glyph_Metrics"},{"location":"ft2-glyph_retrieval.html#ft_load_glyph","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Load_Glyph ( FT_Face face, FT_UInt glyph_index, FT_Int32 load_flags ); Load a glyph into the glyph slot of a face object.","title":"FT_Load_Glyph"},{"location":"ft2-glyph_retrieval.html#ft_load_xxx","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_LOAD_DEFAULT 0x0 # define FT_LOAD_NO_SCALE ( 1L << 0 ) # define FT_LOAD_NO_HINTING ( 1L << 1 ) # define FT_LOAD_RENDER ( 1L << 2 ) # define FT_LOAD_NO_BITMAP ( 1L << 3 ) # define FT_LOAD_VERTICAL_LAYOUT ( 1L << 4 ) # define FT_LOAD_FORCE_AUTOHINT ( 1L << 5 ) # define FT_LOAD_CROP_BITMAP ( 1L << 6 ) # define FT_LOAD_PEDANTIC ( 1L << 7 ) # define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ( 1L << 9 ) # define FT_LOAD_NO_RECURSE ( 1L << 10 ) # define FT_LOAD_IGNORE_TRANSFORM ( 1L << 11 ) # define FT_LOAD_MONOCHROME ( 1L << 12 ) # define FT_LOAD_LINEAR_DESIGN ( 1L << 13 ) # define FT_LOAD_SBITS_ONLY ( 1L << 14 ) # define FT_LOAD_NO_AUTOHINT ( 1L << 15 ) /* Bits 16-19 are used by `FT_LOAD_TARGET_` */ # define FT_LOAD_COLOR ( 1L << 20 ) # define FT_LOAD_COMPUTE_METRICS ( 1L << 21 ) # define FT_LOAD_BITMAP_METRICS_ONLY ( 1L << 22 ) # define FT_LOAD_NO_SVG ( 1L << 24 ) A list of bit field constants for FT_Load_Glyph to indicate what kind of operations to perform during glyph loading.","title":"FT_LOAD_XXX"},{"location":"ft2-glyph_retrieval.html#ft_load_target_mode","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_LOAD_TARGET_MODE ( x ) \\ FT_STATIC_CAST( FT_Render_Mode , ( (x) >> 16 ) & 15 ) Return the FT_Render_Mode corresponding to a given FT_LOAD_TARGET_XXX value.","title":"FT_LOAD_TARGET_MODE"},{"location":"ft2-glyph_retrieval.html#ft_load_target_xxx","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_LOAD_TARGET_( x ) ( FT_STATIC_CAST( FT_Int32 , (x) & 15 ) << 16 ) # define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL ) # define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT ) # define FT_LOAD_TARGET_MONO FT_LOAD_TARGET_( FT_RENDER_MODE_MONO ) # define FT_LOAD_TARGET_LCD FT_LOAD_TARGET_( FT_RENDER_MODE_LCD ) # define FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V ) A list of values to select a specific hinting algorithm for the hinter. You should OR one of these values to your load_flags when calling FT_Load_Glyph . Note that a font's native hinters may ignore the hinting algorithm you have specified (e.g., the TrueType bytecode interpreter). You can set FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used.","title":"FT_LOAD_TARGET_XXX"},{"location":"ft2-glyph_retrieval.html#ft_render_glyph","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Render_Glyph ( FT_GlyphSlot slot, FT_Render_Mode render_mode ); Convert a given glyph image to a bitmap. It does so by inspecting the glyph image format, finding the relevant renderer, and invoking it.","title":"FT_Render_Glyph"},{"location":"ft2-glyph_retrieval.html#ft_render_mode","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef enum FT_Render_Mode_ { FT_RENDER_MODE_NORMAL = 0, FT_RENDER_MODE_LIGHT , FT_RENDER_MODE_MONO , FT_RENDER_MODE_LCD , FT_RENDER_MODE_LCD_V , FT_RENDER_MODE_SDF , FT_RENDER_MODE_MAX } FT_Render_Mode ; /* these constants are deprecated; use the corresponding */ /* ` FT_Render_Mode ` values instead */ # define ft_render_mode_normal FT_RENDER_MODE_NORMAL # define ft_render_mode_mono FT_RENDER_MODE_MONO Render modes supported by FreeType 2. Each mode corresponds to a specific type of scanline conversion performed on the outline. For bitmap fonts and embedded bitmaps the bitmap->pixel_mode field in the FT_GlyphSlotRec structure gives the format of the returned bitmap. All modes except FT_RENDER_MODE_MONO use 256 levels of opacity, indicating pixel coverage. Use linear alpha blending and gamma correction to correctly render non-monochrome glyph bitmaps onto a surface; see FT_Render_Glyph . The FT_RENDER_MODE_SDF is a special render mode that uses up to 256 distance values, indicating the signed distance from the grid position to the nearest outline.","title":"FT_Render_Mode"},{"location":"ft2-glyph_retrieval.html#ft_get_kerning","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Get_Kerning ( FT_Face face, FT_UInt left_glyph, FT_UInt right_glyph, FT_UInt kern_mode, FT_Vector *akerning ); Return the kerning vector between two glyphs of the same face.","title":"FT_Get_Kerning"},{"location":"ft2-glyph_retrieval.html#ft_kerning_mode","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef enum FT_Kerning_Mode_ { FT_KERNING_DEFAULT = 0, FT_KERNING_UNFITTED , FT_KERNING_UNSCALED } FT_Kerning_Mode ; /* these constants are deprecated; use the corresponding */ /* ` FT_Kerning_Mode ` values instead */ # define ft_kerning_default FT_KERNING_DEFAULT # define ft_kerning_unfitted FT_KERNING_UNFITTED # define ft_kerning_unscaled FT_KERNING_UNSCALED An enumeration to specify the format of kerning values returned by FT_Get_Kerning .","title":"FT_Kerning_Mode"},{"location":"ft2-glyph_retrieval.html#ft_get_track_kerning","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Get_Track_Kerning ( FT_Face face, FT_Fixed point_size, FT_Int degree, FT_Fixed * akerning ); Return the track kerning for a given face object at a given size.","title":"FT_Get_Track_Kerning"},{"location":"ft2-glyph_stroker.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb Glyph Stroker Glyph Stroker \u00b6 Synopsis \u00b6 This component generates stroked outlines of a given vectorial glyph. It also allows you to retrieve the \u2018outside\u2019 and/or the \u2018inside\u2019 borders of the stroke. This can be useful to generate \u2018bordered\u2019 glyph, i.e., glyphs displayed with a colored (and anti-aliased) border around their shape. FT_Stroker \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). typedef struct FT_StrokerRec_* FT_Stroker ; Opaque handle to a path stroker object. FT_Stroker_LineJoin \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). typedef enum FT_Stroker_LineJoin_ { FT_STROKER_LINEJOIN_ROUND = 0, FT_STROKER_LINEJOIN_BEVEL = 1, FT_STROKER_LINEJOIN_MITER_VARIABLE = 2, FT_STROKER_LINEJOIN_MITER = FT_STROKER_LINEJOIN_MITER_VARIABLE , FT_STROKER_LINEJOIN_MITER_FIXED = 3 } FT_Stroker_LineJoin ; These values determine how two joining lines are rendered in a stroker. values FT_STROKER_LINEJOIN_ROUND Used to render rounded line joins. Circular arcs are used to join two lines smoothly. FT_STROKER_LINEJOIN_BEVEL Used to render beveled line joins. The outer corner of the joined lines is filled by enclosing the triangular region of the corner with a straight line between the outer corners of each stroke. FT_STROKER_LINEJOIN_MITER_FIXED Used to render mitered line joins, with fixed bevels if the miter limit is exceeded. The outer edges of the strokes for the two segments are extended until they meet at an angle. A bevel join (see above) is used if the segments meet at too sharp an angle and the outer edges meet beyond a distance corresponding to the meter limit. This prevents long spikes being created. FT_STROKER_LINEJOIN_MITER_FIXED generates a miter line join as used in PostScript and PDF. FT_STROKER_LINEJOIN_MITER_VARIABLE FT_STROKER_LINEJOIN_MITER Used to render mitered line joins, with variable bevels if the miter limit is exceeded. The intersection of the strokes is clipped perpendicularly to the bisector, at a distance corresponding to the miter limit. This prevents long spikes being created. FT_STROKER_LINEJOIN_MITER_VARIABLE generates a mitered line join as used in XPS. FT_STROKER_LINEJOIN_MITER is an alias for FT_STROKER_LINEJOIN_MITER_VARIABLE , retained for backward compatibility. FT_Stroker_LineCap \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). typedef enum FT_Stroker_LineCap_ { FT_STROKER_LINECAP_BUTT = 0, FT_STROKER_LINECAP_ROUND , FT_STROKER_LINECAP_SQUARE } FT_Stroker_LineCap ; These values determine how the end of opened sub-paths are rendered in a stroke. values FT_STROKER_LINECAP_BUTT The end of lines is rendered as a full stop on the last point itself. FT_STROKER_LINECAP_ROUND The end of lines is rendered as a half-circle around the last point. FT_STROKER_LINECAP_SQUARE The end of lines is rendered as a square around the last point. FT_StrokerBorder \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). typedef enum FT_StrokerBorder_ { FT_STROKER_BORDER_LEFT = 0, FT_STROKER_BORDER_RIGHT } FT_StrokerBorder ; These values are used to select a given stroke border in FT_Stroker_GetBorderCounts and FT_Stroker_ExportBorder . values FT_STROKER_BORDER_LEFT Select the left border, relative to the drawing direction. FT_STROKER_BORDER_RIGHT Select the right border, relative to the drawing direction. note Applications are generally interested in the \u2018inside\u2019 and \u2018outside\u2019 borders. However, there is no direct mapping between these and the \u2018left\u2019 and \u2018right\u2019 ones, since this really depends on the glyph's drawing orientation, which varies between font formats. You can however use FT_Outline_GetInsideBorder and FT_Outline_GetOutsideBorder to get these. FT_Outline_GetInsideBorder \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_StrokerBorder ) FT_Outline_GetInsideBorder ( FT_Outline * outline ); Retrieve the FT_StrokerBorder value corresponding to the \u2018inside\u2019 borders of a given outline. input outline The source outline handle. return The border index. FT_STROKER_BORDER_RIGHT for empty or invalid outlines. FT_Outline_GetOutsideBorder \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_StrokerBorder ) FT_Outline_GetOutsideBorder ( FT_Outline * outline ); Retrieve the FT_StrokerBorder value corresponding to the \u2018outside\u2019 borders of a given outline. input outline The source outline handle. return The border index. FT_STROKER_BORDER_LEFT for empty or invalid outlines. FT_Glyph_Stroke \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Glyph_Stroke ( FT_Glyph *pglyph, FT_Stroker stroker, FT_Bool destroy ); Stroke a given outline glyph object with a given stroker. inout pglyph Source glyph handle on input, new glyph handle on output. input stroker A stroker handle. destroy A Boolean. If 1, the source glyph object is destroyed on success. return FreeType error code. 0 means success. note The source glyph is untouched in case of error. Adding stroke may yield a significantly wider and taller glyph depending on how large of a radius was used to stroke the glyph. You may need to manually adjust horizontal and vertical advance amounts to account for this added size. FT_Glyph_StrokeBorder \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Glyph_StrokeBorder ( FT_Glyph *pglyph, FT_Stroker stroker, FT_Bool inside, FT_Bool destroy ); Stroke a given outline glyph object with a given stroker, but only return either its inside or outside border. inout pglyph Source glyph handle on input, new glyph handle on output. input stroker A stroker handle. inside A Boolean. If 1, return the inside border, otherwise the outside border. destroy A Boolean. If 1, the source glyph object is destroyed on success. return FreeType error code. 0 means success. note The source glyph is untouched in case of error. Adding stroke may yield a significantly wider and taller glyph depending on how large of a radius was used to stroke the glyph. You may need to manually adjust horizontal and vertical advance amounts to account for this added size. FT_Stroker_New \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_New ( FT_Library library, FT_Stroker *astroker ); Create a new stroker object. input library FreeType library handle. output astroker A new stroker object handle. NULL in case of error. return FreeType error code. 0 means success. FT_Stroker_Set \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_Set ( FT_Stroker stroker, FT_Fixed radius, FT_Stroker_LineCap line_cap, FT_Stroker_LineJoin line_join, FT_Fixed miter_limit ); Reset a stroker object's attributes. input stroker The target stroker handle. radius The border radius. line_cap The line cap style. line_join The line join style. miter_limit The maximum reciprocal sine of half-angle at the miter join, expressed as 16.16 fixed-point value. note The radius is expressed in the same units as the outline coordinates. The miter_limit multiplied by the radius gives the maximum size of a miter spike, at which it is clipped for FT_STROKER_LINEJOIN_MITER_VARIABLE or replaced with a bevel join for FT_STROKER_LINEJOIN_MITER_FIXED . This function calls FT_Stroker_Rewind automatically. FT_Stroker_Rewind \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_Rewind ( FT_Stroker stroker ); Reset a stroker object without changing its attributes. You should call this function before beginning a new series of calls to FT_Stroker_BeginSubPath or FT_Stroker_EndSubPath . input stroker The target stroker handle. FT_Stroker_ParseOutline \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_ParseOutline ( FT_Stroker stroker, FT_Outline * outline, FT_Bool opened ); A convenience function used to parse a whole outline with the stroker. The resulting outline(s) can be retrieved later by functions like FT_Stroker_GetCounts and FT_Stroker_Export . input stroker The target stroker handle. outline The source outline. opened A boolean. If 1, the outline is treated as an open path instead of a closed one. return FreeType error code. 0 means success. note If opened is 0 (the default), the outline is treated as a closed path, and the stroker generates two distinct \u2018border\u2019 outlines. If opened is 1, the outline is processed as an open path, and the stroker generates a single \u2018stroke\u2019 outline. This function calls FT_Stroker_Rewind automatically. FT_Stroker_Done \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_Done ( FT_Stroker stroker ); Destroy a stroker object. input stroker A stroker handle. Can be NULL . FT_Stroker_BeginSubPath \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_BeginSubPath ( FT_Stroker stroker, FT_Vector * to, FT_Bool open ); Start a new sub-path in the stroker. input stroker The target stroker handle. to A pointer to the start vector. open A boolean. If 1, the sub-path is treated as an open one. return FreeType error code. 0 means success. note This function is useful when you need to stroke a path that is not stored as an FT_Outline object. FT_Stroker_EndSubPath \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_EndSubPath ( FT_Stroker stroker ); Close the current sub-path in the stroker. input stroker The target stroker handle. return FreeType error code. 0 means success. note You should call this function after FT_Stroker_BeginSubPath . If the subpath was not \u2018opened\u2019, this function \u2018draws\u2019 a single line segment to the start position when needed. FT_Stroker_LineTo \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_LineTo ( FT_Stroker stroker, FT_Vector * to ); \u2018Draw\u2019 a single line segment in the stroker's current sub-path, from the last position. input stroker The target stroker handle. to A pointer to the destination point. return FreeType error code. 0 means success. note You should call this function between FT_Stroker_BeginSubPath and FT_Stroker_EndSubPath . FT_Stroker_ConicTo \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_ConicTo ( FT_Stroker stroker, FT_Vector * control, FT_Vector * to ); \u2018Draw\u2019 a single quadratic Bezier in the stroker's current sub-path, from the last position. input stroker The target stroker handle. control A pointer to a Bezier control point. to A pointer to the destination point. return FreeType error code. 0 means success. note You should call this function between FT_Stroker_BeginSubPath and FT_Stroker_EndSubPath . FT_Stroker_CubicTo \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_CubicTo ( FT_Stroker stroker, FT_Vector * control1, FT_Vector * control2, FT_Vector * to ); \u2018Draw\u2019 a single cubic Bezier in the stroker's current sub-path, from the last position. input stroker The target stroker handle. control1 A pointer to the first Bezier control point. control2 A pointer to second Bezier control point. to A pointer to the destination point. return FreeType error code. 0 means success. note You should call this function between FT_Stroker_BeginSubPath and FT_Stroker_EndSubPath . FT_Stroker_GetBorderCounts \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_GetBorderCounts ( FT_Stroker stroker, FT_StrokerBorder border, FT_UInt *anum_points, FT_UInt *anum_contours ); Call this function once you have finished parsing your paths with the stroker. It returns the number of points and contours necessary to export one of the \u2018border\u2019 or \u2018stroke\u2019 outlines generated by the stroker. input stroker The target stroker handle. border The border index. output anum_points The number of points. anum_contours The number of contours. return FreeType error code. 0 means success. note When an outline, or a sub-path, is \u2018closed\u2019, the stroker generates two independent \u2018border\u2019 outlines, named \u2018left\u2019 and \u2018right\u2019. When the outline, or a sub-path, is \u2018opened\u2019, the stroker merges the \u2018border\u2019 outlines with caps. The \u2018left\u2019 border receives all points, while the \u2018right\u2019 border becomes empty. Use the function FT_Stroker_GetCounts instead if you want to retrieve the counts associated to both borders. FT_Stroker_ExportBorder \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_ExportBorder ( FT_Stroker stroker, FT_StrokerBorder border, FT_Outline * outline ); Call this function after FT_Stroker_GetBorderCounts to export the corresponding border to your own FT_Outline structure. Note that this function appends the border points and contours to your outline, but does not try to resize its arrays. input stroker The target stroker handle. border The border index. outline The target outline handle. note Always call this function after FT_Stroker_GetBorderCounts to get sure that there is enough room in your FT_Outline object to receive all new data. When an outline, or a sub-path, is \u2018closed\u2019, the stroker generates two independent \u2018border\u2019 outlines, named \u2018left\u2019 and \u2018right\u2019. When the outline, or a sub-path, is \u2018opened\u2019, the stroker merges the \u2018border\u2019 outlines with caps. The \u2018left\u2019 border receives all points, while the \u2018right\u2019 border becomes empty. Use the function FT_Stroker_Export instead if you want to retrieve all borders at once. FT_Stroker_GetCounts \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_GetCounts ( FT_Stroker stroker, FT_UInt *anum_points, FT_UInt *anum_contours ); Call this function once you have finished parsing your paths with the stroker. It returns the number of points and contours necessary to export all points/borders from the stroked outline/path. input stroker The target stroker handle. output anum_points The number of points. anum_contours The number of contours. return FreeType error code. 0 means success. FT_Stroker_Export \u00b6 Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_Export ( FT_Stroker stroker, FT_Outline * outline ); Call this function after FT_Stroker_GetBorderCounts to export all borders to your own FT_Outline structure. Note that this function appends the border points and contours to your outline, but does not try to resize its arrays. input stroker The target stroker handle. outline The target outline handle.","title":"Glyph Stroker"},{"location":"ft2-glyph_stroker.html#glyph-stroker","text":"","title":"Glyph Stroker"},{"location":"ft2-glyph_stroker.html#synopsis","text":"This component generates stroked outlines of a given vectorial glyph. It also allows you to retrieve the \u2018outside\u2019 and/or the \u2018inside\u2019 borders of the stroke. This can be useful to generate \u2018bordered\u2019 glyph, i.e., glyphs displayed with a colored (and anti-aliased) border around their shape.","title":"Synopsis"},{"location":"ft2-glyph_stroker.html#ft_stroker","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). typedef struct FT_StrokerRec_* FT_Stroker ; Opaque handle to a path stroker object.","title":"FT_Stroker"},{"location":"ft2-glyph_stroker.html#ft_stroker_linejoin","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). typedef enum FT_Stroker_LineJoin_ { FT_STROKER_LINEJOIN_ROUND = 0, FT_STROKER_LINEJOIN_BEVEL = 1, FT_STROKER_LINEJOIN_MITER_VARIABLE = 2, FT_STROKER_LINEJOIN_MITER = FT_STROKER_LINEJOIN_MITER_VARIABLE , FT_STROKER_LINEJOIN_MITER_FIXED = 3 } FT_Stroker_LineJoin ; These values determine how two joining lines are rendered in a stroker.","title":"FT_Stroker_LineJoin"},{"location":"ft2-glyph_stroker.html#ft_stroker_linecap","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). typedef enum FT_Stroker_LineCap_ { FT_STROKER_LINECAP_BUTT = 0, FT_STROKER_LINECAP_ROUND , FT_STROKER_LINECAP_SQUARE } FT_Stroker_LineCap ; These values determine how the end of opened sub-paths are rendered in a stroke.","title":"FT_Stroker_LineCap"},{"location":"ft2-glyph_stroker.html#ft_strokerborder","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). typedef enum FT_StrokerBorder_ { FT_STROKER_BORDER_LEFT = 0, FT_STROKER_BORDER_RIGHT } FT_StrokerBorder ; These values are used to select a given stroke border in FT_Stroker_GetBorderCounts and FT_Stroker_ExportBorder .","title":"FT_StrokerBorder"},{"location":"ft2-glyph_stroker.html#ft_outline_getinsideborder","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_StrokerBorder ) FT_Outline_GetInsideBorder ( FT_Outline * outline ); Retrieve the FT_StrokerBorder value corresponding to the \u2018inside\u2019 borders of a given outline.","title":"FT_Outline_GetInsideBorder"},{"location":"ft2-glyph_stroker.html#ft_outline_getoutsideborder","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_StrokerBorder ) FT_Outline_GetOutsideBorder ( FT_Outline * outline ); Retrieve the FT_StrokerBorder value corresponding to the \u2018outside\u2019 borders of a given outline.","title":"FT_Outline_GetOutsideBorder"},{"location":"ft2-glyph_stroker.html#ft_glyph_stroke","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Glyph_Stroke ( FT_Glyph *pglyph, FT_Stroker stroker, FT_Bool destroy ); Stroke a given outline glyph object with a given stroker.","title":"FT_Glyph_Stroke"},{"location":"ft2-glyph_stroker.html#ft_glyph_strokeborder","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Glyph_StrokeBorder ( FT_Glyph *pglyph, FT_Stroker stroker, FT_Bool inside, FT_Bool destroy ); Stroke a given outline glyph object with a given stroker, but only return either its inside or outside border.","title":"FT_Glyph_StrokeBorder"},{"location":"ft2-glyph_stroker.html#ft_stroker_new","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_New ( FT_Library library, FT_Stroker *astroker ); Create a new stroker object.","title":"FT_Stroker_New"},{"location":"ft2-glyph_stroker.html#ft_stroker_set","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_Set ( FT_Stroker stroker, FT_Fixed radius, FT_Stroker_LineCap line_cap, FT_Stroker_LineJoin line_join, FT_Fixed miter_limit ); Reset a stroker object's attributes.","title":"FT_Stroker_Set"},{"location":"ft2-glyph_stroker.html#ft_stroker_rewind","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_Rewind ( FT_Stroker stroker ); Reset a stroker object without changing its attributes. You should call this function before beginning a new series of calls to FT_Stroker_BeginSubPath or FT_Stroker_EndSubPath .","title":"FT_Stroker_Rewind"},{"location":"ft2-glyph_stroker.html#ft_stroker_parseoutline","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_ParseOutline ( FT_Stroker stroker, FT_Outline * outline, FT_Bool opened ); A convenience function used to parse a whole outline with the stroker. The resulting outline(s) can be retrieved later by functions like FT_Stroker_GetCounts and FT_Stroker_Export .","title":"FT_Stroker_ParseOutline"},{"location":"ft2-glyph_stroker.html#ft_stroker_done","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_Done ( FT_Stroker stroker ); Destroy a stroker object.","title":"FT_Stroker_Done"},{"location":"ft2-glyph_stroker.html#ft_stroker_beginsubpath","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_BeginSubPath ( FT_Stroker stroker, FT_Vector * to, FT_Bool open ); Start a new sub-path in the stroker.","title":"FT_Stroker_BeginSubPath"},{"location":"ft2-glyph_stroker.html#ft_stroker_endsubpath","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_EndSubPath ( FT_Stroker stroker ); Close the current sub-path in the stroker.","title":"FT_Stroker_EndSubPath"},{"location":"ft2-glyph_stroker.html#ft_stroker_lineto","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_LineTo ( FT_Stroker stroker, FT_Vector * to ); \u2018Draw\u2019 a single line segment in the stroker's current sub-path, from the last position.","title":"FT_Stroker_LineTo"},{"location":"ft2-glyph_stroker.html#ft_stroker_conicto","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_ConicTo ( FT_Stroker stroker, FT_Vector * control, FT_Vector * to ); \u2018Draw\u2019 a single quadratic Bezier in the stroker's current sub-path, from the last position.","title":"FT_Stroker_ConicTo"},{"location":"ft2-glyph_stroker.html#ft_stroker_cubicto","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_CubicTo ( FT_Stroker stroker, FT_Vector * control1, FT_Vector * control2, FT_Vector * to ); \u2018Draw\u2019 a single cubic Bezier in the stroker's current sub-path, from the last position.","title":"FT_Stroker_CubicTo"},{"location":"ft2-glyph_stroker.html#ft_stroker_getbordercounts","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_GetBorderCounts ( FT_Stroker stroker, FT_StrokerBorder border, FT_UInt *anum_points, FT_UInt *anum_contours ); Call this function once you have finished parsing your paths with the stroker. It returns the number of points and contours necessary to export one of the \u2018border\u2019 or \u2018stroke\u2019 outlines generated by the stroker.","title":"FT_Stroker_GetBorderCounts"},{"location":"ft2-glyph_stroker.html#ft_stroker_exportborder","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_ExportBorder ( FT_Stroker stroker, FT_StrokerBorder border, FT_Outline * outline ); Call this function after FT_Stroker_GetBorderCounts to export the corresponding border to your own FT_Outline structure. Note that this function appends the border points and contours to your outline, but does not try to resize its arrays.","title":"FT_Stroker_ExportBorder"},{"location":"ft2-glyph_stroker.html#ft_stroker_getcounts","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( FT_Error ) FT_Stroker_GetCounts ( FT_Stroker stroker, FT_UInt *anum_points, FT_UInt *anum_contours ); Call this function once you have finished parsing your paths with the stroker. It returns the number of points and contours necessary to export all points/borders from the stroked outline/path.","title":"FT_Stroker_GetCounts"},{"location":"ft2-glyph_stroker.html#ft_stroker_export","text":"Defined in FT_STROKER_H (freetype/ftstroke.h). FT_EXPORT( void ) FT_Stroker_Export ( FT_Stroker stroker, FT_Outline * outline ); Call this function after FT_Stroker_GetBorderCounts to export all borders to your own FT_Outline structure. Note that this function appends the border points and contours to your outline, but does not try to resize its arrays.","title":"FT_Stroker_Export"},{"location":"ft2-glyph_variants.html","text":"FreeType \u00bb Docs \u00bb Extended API \u00bb Unicode Variation Sequences Unicode Variation Sequences \u00b6 Synopsis \u00b6 Many characters, especially for CJK scripts, have variant forms. They are a sort of grey area somewhere between being totally irrelevant and semantically distinct; for this reason, the Unicode consortium decided to introduce Variation Sequences (VS), consisting of a Unicode base character and a variation selector instead of further extending the already huge number of characters. Unicode maintains two different sets, namely \u2018Standardized Variation Sequences\u2019 and registered \u2018Ideographic Variation Sequences\u2019 (IVS), collected in the \u2018Ideographic Variation Database\u2019 (IVD). https://unicode.org/Public/UCD/latest/ucd/StandardizedVariants.txt https://unicode.org/reports/tr37/ https://unicode.org/ivd/ To date (January 2017), the character with the most ideographic variations is U+9089, having 32 such IVS. Three Mongolian Variation Selectors have the values U+180B-U+180D; 256 generic Variation Selectors are encoded in the ranges U+FE00-U+FE0F and U+E0100-U+E01EF. IVS currently use Variation Selectors from the range U+E0100-U+E01EF only. A VS consists of the base character value followed by a single Variation Selector. For example, to get the first variation of U+9089, you have to write the character sequence U+9089 U+E0100 . Adobe and MS decided to support both standardized and ideographic VS with a new cmap subtable (format 14). It is an odd subtable because it is not a mapping of input code points to glyphs, but contains lists of all variations supported by the font. A variation may be either \u2018default\u2019 or \u2018non-default\u2019 for a given font. A default variation is the one you will get for that code point if you look it up in the standard Unicode cmap. A non-default variation is a different glyph. FT_Face_GetCharVariantIndex \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt ) FT_Face_GetCharVariantIndex ( FT_Face face, FT_ULong charcode, FT_ULong variantSelector ); Return the glyph index of a given character code as modified by the variation selector. input face A handle to the source face object. charcode The character code point in Unicode. variantSelector The Unicode code point of the variation selector. return The glyph index. 0 means either \u2018undefined character code\u2019, or \u2018undefined selector code\u2019, or \u2018no variation selector cmap subtable\u2019, or \u2018current CharMap is not Unicode\u2019. note If you use FreeType to manipulate the contents of font files directly, be aware that the glyph index returned by this function doesn't always correspond to the internal indices used within the file. This is done to ensure that value 0 always corresponds to the \u2018missing glyph\u2019. This function is only meaningful if a) the font has a variation selector cmap sub table, and b) the current charmap has a Unicode encoding. since 2.3.6 FT_Face_GetCharVariantIsDefault \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Int ) FT_Face_GetCharVariantIsDefault ( FT_Face face, FT_ULong charcode, FT_ULong variantSelector ); Check whether this variation of this Unicode character is the one to be found in the charmap. input face A handle to the source face object. charcode The character codepoint in Unicode. variantSelector The Unicode codepoint of the variation selector. return 1 if found in the standard (Unicode) cmap, 0 if found in the variation selector cmap, or -1 if it is not a variation. note This function is only meaningful if the font has a variation selector cmap subtable. since 2.3.6 FT_Face_GetVariantSelectors \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt32 * ) FT_Face_GetVariantSelectors ( FT_Face face ); Return a zero-terminated list of Unicode variation selectors found in the font. input face A handle to the source face object. return A pointer to an array of selector code points, or NULL if there is no valid variation selector cmap subtable. note The last item in the array is 0; the array is owned by the FT_Face object but can be overwritten or released on the next call to a FreeType function. since 2.3.6 FT_Face_GetVariantsOfChar \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt32 * ) FT_Face_GetVariantsOfChar ( FT_Face face, FT_ULong charcode ); Return a zero-terminated list of Unicode variation selectors found for the specified character code. input face A handle to the source face object. charcode The character codepoint in Unicode. return A pointer to an array of variation selector code points that are active for the given character, or NULL if the corresponding list is empty. note The last item in the array is 0; the array is owned by the FT_Face object but can be overwritten or released on the next call to a FreeType function. since 2.3.6 FT_Face_GetCharsOfVariant \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt32 * ) FT_Face_GetCharsOfVariant ( FT_Face face, FT_ULong variantSelector ); Return a zero-terminated list of Unicode character codes found for the specified variation selector. input face A handle to the source face object. variantSelector The variation selector code point in Unicode. return A list of all the code points that are specified by this selector (both default and non-default codes are returned) or NULL if there is no valid cmap or the variation selector is invalid. note The last item in the array is 0; the array is owned by the FT_Face object but can be overwritten or released on the next call to a FreeType function. since 2.3.6","title":"Unicode Variation Sequences"},{"location":"ft2-glyph_variants.html#unicode-variation-sequences","text":"","title":"Unicode Variation Sequences"},{"location":"ft2-glyph_variants.html#synopsis","text":"Many characters, especially for CJK scripts, have variant forms. They are a sort of grey area somewhere between being totally irrelevant and semantically distinct; for this reason, the Unicode consortium decided to introduce Variation Sequences (VS), consisting of a Unicode base character and a variation selector instead of further extending the already huge number of characters. Unicode maintains two different sets, namely \u2018Standardized Variation Sequences\u2019 and registered \u2018Ideographic Variation Sequences\u2019 (IVS), collected in the \u2018Ideographic Variation Database\u2019 (IVD). https://unicode.org/Public/UCD/latest/ucd/StandardizedVariants.txt https://unicode.org/reports/tr37/ https://unicode.org/ivd/ To date (January 2017), the character with the most ideographic variations is U+9089, having 32 such IVS. Three Mongolian Variation Selectors have the values U+180B-U+180D; 256 generic Variation Selectors are encoded in the ranges U+FE00-U+FE0F and U+E0100-U+E01EF. IVS currently use Variation Selectors from the range U+E0100-U+E01EF only. A VS consists of the base character value followed by a single Variation Selector. For example, to get the first variation of U+9089, you have to write the character sequence U+9089 U+E0100 . Adobe and MS decided to support both standardized and ideographic VS with a new cmap subtable (format 14). It is an odd subtable because it is not a mapping of input code points to glyphs, but contains lists of all variations supported by the font. A variation may be either \u2018default\u2019 or \u2018non-default\u2019 for a given font. A default variation is the one you will get for that code point if you look it up in the standard Unicode cmap. A non-default variation is a different glyph.","title":"Synopsis"},{"location":"ft2-glyph_variants.html#ft_face_getcharvariantindex","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt ) FT_Face_GetCharVariantIndex ( FT_Face face, FT_ULong charcode, FT_ULong variantSelector ); Return the glyph index of a given character code as modified by the variation selector.","title":"FT_Face_GetCharVariantIndex"},{"location":"ft2-glyph_variants.html#ft_face_getcharvariantisdefault","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Int ) FT_Face_GetCharVariantIsDefault ( FT_Face face, FT_ULong charcode, FT_ULong variantSelector ); Check whether this variation of this Unicode character is the one to be found in the charmap.","title":"FT_Face_GetCharVariantIsDefault"},{"location":"ft2-glyph_variants.html#ft_face_getvariantselectors","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt32 * ) FT_Face_GetVariantSelectors ( FT_Face face ); Return a zero-terminated list of Unicode variation selectors found in the font.","title":"FT_Face_GetVariantSelectors"},{"location":"ft2-glyph_variants.html#ft_face_getvariantsofchar","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt32 * ) FT_Face_GetVariantsOfChar ( FT_Face face, FT_ULong charcode ); Return a zero-terminated list of Unicode variation selectors found for the specified character code.","title":"FT_Face_GetVariantsOfChar"},{"location":"ft2-glyph_variants.html#ft_face_getcharsofvariant","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt32 * ) FT_Face_GetCharsOfVariant ( FT_Face face, FT_ULong variantSelector ); Return a zero-terminated list of Unicode character codes found for the specified variation selector.","title":"FT_Face_GetCharsOfVariant"},{"location":"ft2-gx_validation.html","text":"FreeType \u00bb Docs \u00bb Miscellaneous \u00bb TrueTypeGX/AAT Validation TrueTypeGX/AAT Validation \u00b6 Synopsis \u00b6 This section contains the declaration of functions to validate some TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, trak, prop, lcar). FT_TrueTypeGX_Validate \u00b6 Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). FT_EXPORT( FT_Error ) FT_TrueTypeGX_Validate ( FT_Face face, FT_UInt validation_flags, FT_Bytes tables[ FT_VALIDATE_GX_LENGTH ], FT_UInt table_length ); Validate various TrueTypeGX tables to assure that all offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming). input face A handle to the input face. validation_flags A bit field that specifies the tables to be validated. See FT_VALIDATE_GXXXX for possible values. table_length The size of the tables array. Normally, FT_VALIDATE_GX_LENGTH should be passed. output tables The array where all validated sfnt tables are stored. The array itself must be allocated by a client. return FreeType error code. 0 means success. note This function only works with TrueTypeGX fonts, returning an error otherwise. After use, the application should deallocate the buffers pointed to by each tables element, by calling FT_TrueTypeGX_Free . A NULL value indicates that the table either doesn't exist in the font, the application hasn't asked for validation, or the validator doesn't have the ability to validate the sfnt table. FT_TrueTypeGX_Free \u00b6 Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). FT_EXPORT( void ) FT_TrueTypeGX_Free ( FT_Face face, FT_Bytes table ); Free the buffer allocated by TrueTypeGX validator. input face A handle to the input face. table The pointer to the buffer allocated by FT_TrueTypeGX_Validate . note This function must be used to free the buffer allocated by FT_TrueTypeGX_Validate only. FT_ClassicKern_Validate \u00b6 Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). FT_EXPORT( FT_Error ) FT_ClassicKern_Validate ( FT_Face face, FT_UInt validation_flags, FT_Bytes *ckern_table ); Validate classic (16-bit format) kern table to assure that the offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming). The \u2018kern\u2019 table validator in FT_TrueTypeGX_Validate deals with both the new 32-bit format and the classic 16-bit format, while FT_ClassicKern_Validate only supports the classic 16-bit format. input face A handle to the input face. validation_flags A bit field that specifies the dialect to be validated. See FT_VALIDATE_CKERNXXX for possible values. output ckern_table A pointer to the kern table. return FreeType error code. 0 means success. note After use, the application should deallocate the buffers pointed to by ckern_table , by calling FT_ClassicKern_Free . A NULL value indicates that the table doesn't exist in the font. FT_ClassicKern_Free \u00b6 Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). FT_EXPORT( void ) FT_ClassicKern_Free ( FT_Face face, FT_Bytes table ); Free the buffer allocated by classic Kern validator. input face A handle to the input face. table The pointer to the buffer that is allocated by FT_ClassicKern_Validate . note This function must be used to free the buffer allocated by FT_ClassicKern_Validate only. FT_VALIDATE_GX_LENGTH \u00b6 Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). # define FT_VALIDATE_GX_LENGTH ( FT_VALIDATE_GX_LAST_INDEX + 1 ) The number of tables checked in this module. Use it as a parameter for the table-length argument of function FT_TrueTypeGX_Validate . FT_VALIDATE_GXXXX \u00b6 Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). # define FT_VALIDATE_feat FT_VALIDATE_GX_BITFIELD( feat ) # define FT_VALIDATE_mort FT_VALIDATE_GX_BITFIELD( mort ) # define FT_VALIDATE_morx FT_VALIDATE_GX_BITFIELD( morx ) # define FT_VALIDATE_bsln FT_VALIDATE_GX_BITFIELD( bsln ) # define FT_VALIDATE_just FT_VALIDATE_GX_BITFIELD( just ) # define FT_VALIDATE_kern FT_VALIDATE_GX_BITFIELD( kern ) # define FT_VALIDATE_opbd FT_VALIDATE_GX_BITFIELD( opbd ) # define FT_VALIDATE_trak FT_VALIDATE_GX_BITFIELD( trak ) # define FT_VALIDATE_prop FT_VALIDATE_GX_BITFIELD( prop ) # define FT_VALIDATE_lcar FT_VALIDATE_GX_BITFIELD( lcar ) # define FT_VALIDATE_GX ( FT_VALIDATE_feat | \\ FT_VALIDATE_mort | \\ FT_VALIDATE_morx | \\ FT_VALIDATE_bsln | \\ FT_VALIDATE_just | \\ FT_VALIDATE_kern | \\ FT_VALIDATE_opbd | \\ FT_VALIDATE_trak | \\ FT_VALIDATE_prop | \\ FT_VALIDATE_lcar ) A list of bit-field constants used with FT_TrueTypeGX_Validate to indicate which TrueTypeGX/AAT Type tables should be validated. values FT_VALIDATE_feat Validate \u2018feat\u2019 table. FT_VALIDATE_mort Validate \u2018mort\u2019 table. FT_VALIDATE_morx Validate \u2018morx\u2019 table. FT_VALIDATE_bsln Validate \u2018bsln\u2019 table. FT_VALIDATE_just Validate \u2018just\u2019 table. FT_VALIDATE_kern Validate \u2018kern\u2019 table. FT_VALIDATE_opbd Validate \u2018opbd\u2019 table. FT_VALIDATE_trak Validate \u2018trak\u2019 table. FT_VALIDATE_prop Validate \u2018prop\u2019 table. FT_VALIDATE_lcar Validate \u2018lcar\u2019 table. FT_VALIDATE_GX Validate all TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, trak, prop and lcar). FT_VALIDATE_CKERNXXX \u00b6 Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). # define FT_VALIDATE_MS ( FT_VALIDATE_GX_START << 0 ) # define FT_VALIDATE_APPLE ( FT_VALIDATE_GX_START << 1 ) # define FT_VALIDATE_CKERN ( FT_VALIDATE_MS | FT_VALIDATE_APPLE ) A list of bit-field constants used with FT_ClassicKern_Validate to indicate the classic kern dialect or dialects. If the selected type doesn't fit, FT_ClassicKern_Validate regards the table as invalid. values FT_VALIDATE_MS Handle the \u2018kern\u2019 table as a classic Microsoft kern table. FT_VALIDATE_APPLE Handle the \u2018kern\u2019 table as a classic Apple kern table. FT_VALIDATE_CKERN Handle the \u2018kern\u2019 as either classic Apple or Microsoft kern table.","title":"TrueTypeGX/AAT Validation"},{"location":"ft2-gx_validation.html#truetypegxaat-validation","text":"","title":"TrueTypeGX/AAT Validation"},{"location":"ft2-gx_validation.html#synopsis","text":"This section contains the declaration of functions to validate some TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, trak, prop, lcar).","title":"Synopsis"},{"location":"ft2-gx_validation.html#ft_truetypegx_validate","text":"Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). FT_EXPORT( FT_Error ) FT_TrueTypeGX_Validate ( FT_Face face, FT_UInt validation_flags, FT_Bytes tables[ FT_VALIDATE_GX_LENGTH ], FT_UInt table_length ); Validate various TrueTypeGX tables to assure that all offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming).","title":"FT_TrueTypeGX_Validate"},{"location":"ft2-gx_validation.html#ft_truetypegx_free","text":"Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). FT_EXPORT( void ) FT_TrueTypeGX_Free ( FT_Face face, FT_Bytes table ); Free the buffer allocated by TrueTypeGX validator.","title":"FT_TrueTypeGX_Free"},{"location":"ft2-gx_validation.html#ft_classickern_validate","text":"Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). FT_EXPORT( FT_Error ) FT_ClassicKern_Validate ( FT_Face face, FT_UInt validation_flags, FT_Bytes *ckern_table ); Validate classic (16-bit format) kern table to assure that the offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming). The \u2018kern\u2019 table validator in FT_TrueTypeGX_Validate deals with both the new 32-bit format and the classic 16-bit format, while FT_ClassicKern_Validate only supports the classic 16-bit format.","title":"FT_ClassicKern_Validate"},{"location":"ft2-gx_validation.html#ft_classickern_free","text":"Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). FT_EXPORT( void ) FT_ClassicKern_Free ( FT_Face face, FT_Bytes table ); Free the buffer allocated by classic Kern validator.","title":"FT_ClassicKern_Free"},{"location":"ft2-gx_validation.html#ft_validate_gx_length","text":"Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). # define FT_VALIDATE_GX_LENGTH ( FT_VALIDATE_GX_LAST_INDEX + 1 ) The number of tables checked in this module. Use it as a parameter for the table-length argument of function FT_TrueTypeGX_Validate .","title":"FT_VALIDATE_GX_LENGTH"},{"location":"ft2-gx_validation.html#ft_validate_gxxxx","text":"Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). # define FT_VALIDATE_feat FT_VALIDATE_GX_BITFIELD( feat ) # define FT_VALIDATE_mort FT_VALIDATE_GX_BITFIELD( mort ) # define FT_VALIDATE_morx FT_VALIDATE_GX_BITFIELD( morx ) # define FT_VALIDATE_bsln FT_VALIDATE_GX_BITFIELD( bsln ) # define FT_VALIDATE_just FT_VALIDATE_GX_BITFIELD( just ) # define FT_VALIDATE_kern FT_VALIDATE_GX_BITFIELD( kern ) # define FT_VALIDATE_opbd FT_VALIDATE_GX_BITFIELD( opbd ) # define FT_VALIDATE_trak FT_VALIDATE_GX_BITFIELD( trak ) # define FT_VALIDATE_prop FT_VALIDATE_GX_BITFIELD( prop ) # define FT_VALIDATE_lcar FT_VALIDATE_GX_BITFIELD( lcar ) # define FT_VALIDATE_GX ( FT_VALIDATE_feat | \\ FT_VALIDATE_mort | \\ FT_VALIDATE_morx | \\ FT_VALIDATE_bsln | \\ FT_VALIDATE_just | \\ FT_VALIDATE_kern | \\ FT_VALIDATE_opbd | \\ FT_VALIDATE_trak | \\ FT_VALIDATE_prop | \\ FT_VALIDATE_lcar ) A list of bit-field constants used with FT_TrueTypeGX_Validate to indicate which TrueTypeGX/AAT Type tables should be validated.","title":"FT_VALIDATE_GXXXX"},{"location":"ft2-gx_validation.html#ft_validate_ckernxxx","text":"Defined in FT_GX_VALIDATE_H (freetype/ftgxval.h). # define FT_VALIDATE_MS ( FT_VALIDATE_GX_START << 0 ) # define FT_VALIDATE_APPLE ( FT_VALIDATE_GX_START << 1 ) # define FT_VALIDATE_CKERN ( FT_VALIDATE_MS | FT_VALIDATE_APPLE ) A list of bit-field constants used with FT_ClassicKern_Validate to indicate the classic kern dialect or dialects. If the selected type doesn't fit, FT_ClassicKern_Validate regards the table as invalid.","title":"FT_VALIDATE_CKERNXXX"},{"location":"ft2-gzip.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb GZIP Streams GZIP Streams \u00b6 Synopsis \u00b6 In certain builds of the library, gzip compression recognition is automatically handled when calling FT_New_Face or FT_Open_Face . This means that if no font driver is capable of handling the raw compressed file, the library will try to open a gzipped stream from it and re-open the face with it. The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance. This section contains the declaration of Gzip-specific functions. FT_Stream_OpenGzip \u00b6 Defined in FT_GZIP_H (freetype/ftgzip.h). FT_EXPORT( FT_Error ) FT_Stream_OpenGzip ( FT_Stream stream, FT_Stream source ); Open a new stream to parse gzip-compressed font files. This is mainly used to support the compressed *.pcf.gz fonts that come with XFree86. input stream The target embedding stream. source The source stream. return FreeType error code. 0 means success. note The source stream must be opened before calling this function. Calling the internal function FT_Stream_Close on the new stream will not call FT_Stream_Close on the source stream. None of the stream objects will be released to the heap. This function may return FT_Err_Unimplemented_Feature if your build of FreeType was not compiled with zlib support. FT_Gzip_Uncompress \u00b6 Defined in FT_GZIP_H (freetype/ftgzip.h). FT_EXPORT( FT_Error ) FT_Gzip_Uncompress ( FT_Memory memory, FT_Byte * output, FT_ULong * output_len, const FT_Byte * input, FT_ULong input_len ); Decompress a zipped input buffer into an output buffer. This function is modeled after zlib's uncompress function. input memory A FreeType memory handle. input The input buffer. input_len The length of the input buffer. output output The output buffer. inout output_len Before calling the function, this is the total size of the output buffer, which must be large enough to hold the entire uncompressed data (so the size of the uncompressed data must be known in advance). After calling the function, output_len is the size of the used data in output . return FreeType error code. 0 means success. note This function may return FT_Err_Unimplemented_Feature if your build of FreeType was not compiled with zlib support. since 2.5.1","title":"GZIP Streams"},{"location":"ft2-gzip.html#gzip-streams","text":"","title":"GZIP Streams"},{"location":"ft2-gzip.html#synopsis","text":"In certain builds of the library, gzip compression recognition is automatically handled when calling FT_New_Face or FT_Open_Face . This means that if no font driver is capable of handling the raw compressed file, the library will try to open a gzipped stream from it and re-open the face with it. The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance. This section contains the declaration of Gzip-specific functions.","title":"Synopsis"},{"location":"ft2-gzip.html#ft_stream_opengzip","text":"Defined in FT_GZIP_H (freetype/ftgzip.h). FT_EXPORT( FT_Error ) FT_Stream_OpenGzip ( FT_Stream stream, FT_Stream source ); Open a new stream to parse gzip-compressed font files. This is mainly used to support the compressed *.pcf.gz fonts that come with XFree86.","title":"FT_Stream_OpenGzip"},{"location":"ft2-gzip.html#ft_gzip_uncompress","text":"Defined in FT_GZIP_H (freetype/ftgzip.h). FT_EXPORT( FT_Error ) FT_Gzip_Uncompress ( FT_Memory memory, FT_Byte * output, FT_ULong * output_len, const FT_Byte * input, FT_ULong input_len ); Decompress a zipped input buffer into an output buffer. This function is modeled after zlib's uncompress function.","title":"FT_Gzip_Uncompress"},{"location":"ft2-header_file_macros.html","text":"FreeType \u00bb Docs \u00bb Extended API \u00bb Header File Macros Header File Macros \u00b6 Synopsis \u00b6 In addition to the normal scheme of including header files like #include #include #include it is possible to used named macros instead. They can be used directly in #include statements as in #include FT_FREETYPE_H #include FT_MULTIPLE_MASTERS_H #include FT_GLYPH_H These macros were introduced to overcome the infamous 8.3 naming rule required by DOS (and FT_MULTIPLE_MASTERS_H is a lot more meaningful than ftmm.h ). FT_CONFIG_CONFIG_H \u00b6 # ifndef FT_CONFIG_CONFIG_H # define FT_CONFIG_CONFIG_H # endif A macro used in #include statements to name the file containing FreeType 2 configuration data. FT_CONFIG_STANDARD_LIBRARY_H \u00b6 # ifndef FT_CONFIG_STANDARD_LIBRARY_H # define FT_CONFIG_STANDARD_LIBRARY_H # endif A macro used in #include statements to name the file containing FreeType 2 interface to the standard C library functions. FT_CONFIG_OPTIONS_H \u00b6 # ifndef FT_CONFIG_OPTIONS_H # define FT_CONFIG_OPTIONS_H # endif A macro used in #include statements to name the file containing FreeType 2 project-specific configuration options. FT_CONFIG_MODULES_H \u00b6 # ifndef FT_CONFIG_MODULES_H # define FT_CONFIG_MODULES_H # endif A macro used in #include statements to name the file containing the list of FreeType 2 modules that are statically linked to new library instances in FT_Init_FreeType . FT_FREETYPE_H \u00b6 # define FT_FREETYPE_H A macro used in #include statements to name the file containing the base FreeType 2 API. FT_ERRORS_H \u00b6 # define FT_ERRORS_H A macro used in #include statements to name the file containing the list of FreeType 2 error codes (and messages). It is included by FT_FREETYPE_H . FT_MODULE_ERRORS_H \u00b6 # define FT_MODULE_ERRORS_H A macro used in #include statements to name the file containing the list of FreeType 2 module error offsets (and messages). FT_SYSTEM_H \u00b6 # define FT_SYSTEM_H A macro used in #include statements to name the file containing the FreeType 2 interface to low-level operations (i.e., memory management and stream i/o). It is included by FT_FREETYPE_H . FT_IMAGE_H \u00b6 # define FT_IMAGE_H A macro used in #include statements to name the file containing type definitions related to glyph images (i.e., bitmaps, outlines, scan-converter parameters). It is included by FT_FREETYPE_H . FT_TYPES_H \u00b6 # define FT_TYPES_H A macro used in #include statements to name the file containing the basic data types defined by FreeType 2. It is included by FT_FREETYPE_H . FT_LIST_H \u00b6 # define FT_LIST_H A macro used in #include statements to name the file containing the list management API of FreeType 2. (Most applications will never need to include this file.) FT_OUTLINE_H \u00b6 # define FT_OUTLINE_H A macro used in #include statements to name the file containing the scalable outline management API of FreeType 2. FT_SIZES_H \u00b6 # define FT_SIZES_H A macro used in #include statements to name the file containing the API which manages multiple FT_Size objects per face. FT_MODULE_H \u00b6 # define FT_MODULE_H A macro used in #include statements to name the file containing the module management API of FreeType 2. FT_RENDER_H \u00b6 # define FT_RENDER_H A macro used in #include statements to name the file containing the renderer module management API of FreeType 2. FT_DRIVER_H \u00b6 # define FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the driver modules. FT_AUTOHINTER_H \u00b6 # define FT_AUTOHINTER_H FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the auto-hinting module. Deprecated since version 2.9; use FT_DRIVER_H instead. FT_CFF_DRIVER_H \u00b6 # define FT_CFF_DRIVER_H FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the CFF driver module. Deprecated since version 2.9; use FT_DRIVER_H instead. FT_TRUETYPE_DRIVER_H \u00b6 # define FT_TRUETYPE_DRIVER_H FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the TrueType driver module. Deprecated since version 2.9; use FT_DRIVER_H instead. FT_PCF_DRIVER_H \u00b6 # define FT_PCF_DRIVER_H FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the PCF driver module. Deprecated since version 2.9; use FT_DRIVER_H instead. FT_TYPE1_TABLES_H \u00b6 # define FT_TYPE1_TABLES_H A macro used in #include statements to name the file containing the types and API specific to the Type 1 format. FT_TRUETYPE_IDS_H \u00b6 # define FT_TRUETYPE_IDS_H A macro used in #include statements to name the file containing the enumeration values which identify name strings, languages, encodings, etc. This file really contains a large set of constant macro definitions, taken from the TrueType and OpenType specifications. FT_TRUETYPE_TABLES_H \u00b6 # define FT_TRUETYPE_TABLES_H A macro used in #include statements to name the file containing the types and API specific to the TrueType (as well as OpenType) format. FT_TRUETYPE_TAGS_H \u00b6 # define FT_TRUETYPE_TAGS_H A macro used in #include statements to name the file containing the definitions of TrueType four-byte \u2018tags\u2019 which identify blocks in SFNT-based font formats (i.e., TrueType and OpenType). FT_BDF_H \u00b6 # define FT_BDF_H A macro used in #include statements to name the file containing the definitions of an API which accesses BDF-specific strings from a face. FT_CID_H \u00b6 # define FT_CID_H A macro used in #include statements to name the file containing the definitions of an API which access CID font information from a face. FT_GZIP_H \u00b6 # define FT_GZIP_H A macro used in #include statements to name the file containing the definitions of an API which supports gzip-compressed files. FT_LZW_H \u00b6 # define FT_LZW_H A macro used in #include statements to name the file containing the definitions of an API which supports LZW-compressed files. FT_BZIP2_H \u00b6 # define FT_BZIP2_H A macro used in #include statements to name the file containing the definitions of an API which supports bzip2-compressed files. FT_WINFONTS_H \u00b6 # define FT_WINFONTS_H A macro used in #include statements to name the file containing the definitions of an API which supports Windows FNT files. FT_GLYPH_H \u00b6 # define FT_GLYPH_H A macro used in #include statements to name the file containing the API of the optional glyph management component. FT_BITMAP_H \u00b6 # define FT_BITMAP_H A macro used in #include statements to name the file containing the API of the optional bitmap conversion component. FT_BBOX_H \u00b6 # define FT_BBOX_H A macro used in #include statements to name the file containing the API of the optional exact bounding box computation routines. FT_CACHE_H \u00b6 # define FT_CACHE_H A macro used in #include statements to name the file containing the API of the optional FreeType 2 cache sub-system. FT_MAC_H \u00b6 # define FT_MAC_H A macro used in #include statements to name the file containing the Macintosh-specific FreeType 2 API. The latter is used to access fonts embedded in resource forks. This header file must be explicitly included by client applications compiled on the Mac (note that the base API still works though). FT_MULTIPLE_MASTERS_H \u00b6 # define FT_MULTIPLE_MASTERS_H A macro used in #include statements to name the file containing the optional multiple-masters management API of FreeType 2. FT_SFNT_NAMES_H \u00b6 # define FT_SFNT_NAMES_H A macro used in #include statements to name the file containing the optional FreeType 2 API which accesses embedded \u2018name\u2019 strings in SFNT-based font formats (i.e., TrueType and OpenType). FT_OPENTYPE_VALIDATE_H \u00b6 # define FT_OPENTYPE_VALIDATE_H A macro used in #include statements to name the file containing the optional FreeType 2 API which validates OpenType tables (\u2018BASE\u2019, \u2018GDEF\u2019, \u2018GPOS\u2019, \u2018GSUB\u2019, \u2018JSTF\u2019). FT_GX_VALIDATE_H \u00b6 # define FT_GX_VALIDATE_H A macro used in #include statements to name the file containing the optional FreeType 2 API which validates TrueTypeGX/AAT tables (\u2018feat\u2019, \u2018mort\u2019, \u2018morx\u2019, \u2018bsln\u2019, \u2018just\u2019, \u2018kern\u2019, \u2018opbd\u2019, \u2018trak\u2019, \u2018prop\u2019). FT_PFR_H \u00b6 # define FT_PFR_H A macro used in #include statements to name the file containing the FreeType 2 API which accesses PFR-specific data. FT_STROKER_H \u00b6 # define FT_STROKER_H A macro used in #include statements to name the file containing the FreeType 2 API which provides functions to stroke outline paths. FT_SYNTHESIS_H \u00b6 # define FT_SYNTHESIS_H A macro used in #include statements to name the file containing the FreeType 2 API which performs artificial obliquing and emboldening. FT_FONT_FORMATS_H \u00b6 # define FT_FONT_FORMATS_H /* deprecated */ # define FT_XFREE86_H FT_FONT_FORMATS_H A macro used in #include statements to name the file containing the FreeType 2 API which provides functions specific to font formats. FT_TRIGONOMETRY_H \u00b6 # define FT_TRIGONOMETRY_H A macro used in #include statements to name the file containing the FreeType 2 API which performs trigonometric computations (e.g., cosines and arc tangents). FT_LCD_FILTER_H \u00b6 # define FT_LCD_FILTER_H A macro used in #include statements to name the file containing the FreeType 2 API which performs color filtering for subpixel rendering. FT_INCREMENTAL_H \u00b6 # define FT_INCREMENTAL_H A macro used in #include statements to name the file containing the FreeType 2 API which performs incremental glyph loading. FT_GASP_H \u00b6 # define FT_GASP_H A macro used in #include statements to name the file containing the FreeType 2 API which returns entries from the TrueType GASP table. FT_ADVANCES_H \u00b6 # define FT_ADVANCES_H A macro used in #include statements to name the file containing the FreeType 2 API which returns individual and ranged glyph advances. FT_COLOR_H \u00b6 # define FT_COLOR_H A macro used in #include statements to name the file containing the FreeType 2 API which handles the OpenType \u2018CPAL\u2019 table. FT_OTSVG_H \u00b6 # define FT_OTSVG_H A macro used in #include statements to name the file containing the FreeType 2 API which handles the OpenType \u2018SVG \u2019 glyphs.","title":"Header File Macros"},{"location":"ft2-header_file_macros.html#header-file-macros","text":"","title":"Header File Macros"},{"location":"ft2-header_file_macros.html#synopsis","text":"In addition to the normal scheme of including header files like #include #include #include it is possible to used named macros instead. They can be used directly in #include statements as in #include FT_FREETYPE_H #include FT_MULTIPLE_MASTERS_H #include FT_GLYPH_H These macros were introduced to overcome the infamous 8.3 naming rule required by DOS (and FT_MULTIPLE_MASTERS_H is a lot more meaningful than ftmm.h ).","title":"Synopsis"},{"location":"ft2-header_file_macros.html#ft_config_config_h","text":"# ifndef FT_CONFIG_CONFIG_H # define FT_CONFIG_CONFIG_H # endif A macro used in #include statements to name the file containing FreeType 2 configuration data.","title":"FT_CONFIG_CONFIG_H"},{"location":"ft2-header_file_macros.html#ft_config_standard_library_h","text":"# ifndef FT_CONFIG_STANDARD_LIBRARY_H # define FT_CONFIG_STANDARD_LIBRARY_H # endif A macro used in #include statements to name the file containing FreeType 2 interface to the standard C library functions.","title":"FT_CONFIG_STANDARD_LIBRARY_H"},{"location":"ft2-header_file_macros.html#ft_config_options_h","text":"# ifndef FT_CONFIG_OPTIONS_H # define FT_CONFIG_OPTIONS_H # endif A macro used in #include statements to name the file containing FreeType 2 project-specific configuration options.","title":"FT_CONFIG_OPTIONS_H"},{"location":"ft2-header_file_macros.html#ft_config_modules_h","text":"# ifndef FT_CONFIG_MODULES_H # define FT_CONFIG_MODULES_H # endif A macro used in #include statements to name the file containing the list of FreeType 2 modules that are statically linked to new library instances in FT_Init_FreeType .","title":"FT_CONFIG_MODULES_H"},{"location":"ft2-header_file_macros.html#ft_freetype_h","text":"# define FT_FREETYPE_H A macro used in #include statements to name the file containing the base FreeType 2 API.","title":"FT_FREETYPE_H"},{"location":"ft2-header_file_macros.html#ft_errors_h","text":"# define FT_ERRORS_H A macro used in #include statements to name the file containing the list of FreeType 2 error codes (and messages). It is included by FT_FREETYPE_H .","title":"FT_ERRORS_H"},{"location":"ft2-header_file_macros.html#ft_module_errors_h","text":"# define FT_MODULE_ERRORS_H A macro used in #include statements to name the file containing the list of FreeType 2 module error offsets (and messages).","title":"FT_MODULE_ERRORS_H"},{"location":"ft2-header_file_macros.html#ft_system_h","text":"# define FT_SYSTEM_H A macro used in #include statements to name the file containing the FreeType 2 interface to low-level operations (i.e., memory management and stream i/o). It is included by FT_FREETYPE_H .","title":"FT_SYSTEM_H"},{"location":"ft2-header_file_macros.html#ft_image_h","text":"# define FT_IMAGE_H A macro used in #include statements to name the file containing type definitions related to glyph images (i.e., bitmaps, outlines, scan-converter parameters). It is included by FT_FREETYPE_H .","title":"FT_IMAGE_H"},{"location":"ft2-header_file_macros.html#ft_types_h","text":"# define FT_TYPES_H A macro used in #include statements to name the file containing the basic data types defined by FreeType 2. It is included by FT_FREETYPE_H .","title":"FT_TYPES_H"},{"location":"ft2-header_file_macros.html#ft_list_h","text":"# define FT_LIST_H A macro used in #include statements to name the file containing the list management API of FreeType 2. (Most applications will never need to include this file.)","title":"FT_LIST_H"},{"location":"ft2-header_file_macros.html#ft_outline_h","text":"# define FT_OUTLINE_H A macro used in #include statements to name the file containing the scalable outline management API of FreeType 2.","title":"FT_OUTLINE_H"},{"location":"ft2-header_file_macros.html#ft_sizes_h","text":"# define FT_SIZES_H A macro used in #include statements to name the file containing the API which manages multiple FT_Size objects per face.","title":"FT_SIZES_H"},{"location":"ft2-header_file_macros.html#ft_module_h","text":"# define FT_MODULE_H A macro used in #include statements to name the file containing the module management API of FreeType 2.","title":"FT_MODULE_H"},{"location":"ft2-header_file_macros.html#ft_render_h","text":"# define FT_RENDER_H A macro used in #include statements to name the file containing the renderer module management API of FreeType 2.","title":"FT_RENDER_H"},{"location":"ft2-header_file_macros.html#ft_driver_h","text":"# define FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the driver modules.","title":"FT_DRIVER_H"},{"location":"ft2-header_file_macros.html#ft_autohinter_h","text":"# define FT_AUTOHINTER_H FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the auto-hinting module. Deprecated since version 2.9; use FT_DRIVER_H instead.","title":"FT_AUTOHINTER_H"},{"location":"ft2-header_file_macros.html#ft_cff_driver_h","text":"# define FT_CFF_DRIVER_H FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the CFF driver module. Deprecated since version 2.9; use FT_DRIVER_H instead.","title":"FT_CFF_DRIVER_H"},{"location":"ft2-header_file_macros.html#ft_truetype_driver_h","text":"# define FT_TRUETYPE_DRIVER_H FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the TrueType driver module. Deprecated since version 2.9; use FT_DRIVER_H instead.","title":"FT_TRUETYPE_DRIVER_H"},{"location":"ft2-header_file_macros.html#ft_pcf_driver_h","text":"# define FT_PCF_DRIVER_H FT_DRIVER_H A macro used in #include statements to name the file containing structures and macros related to the PCF driver module. Deprecated since version 2.9; use FT_DRIVER_H instead.","title":"FT_PCF_DRIVER_H"},{"location":"ft2-header_file_macros.html#ft_type1_tables_h","text":"# define FT_TYPE1_TABLES_H A macro used in #include statements to name the file containing the types and API specific to the Type 1 format.","title":"FT_TYPE1_TABLES_H"},{"location":"ft2-header_file_macros.html#ft_truetype_ids_h","text":"# define FT_TRUETYPE_IDS_H A macro used in #include statements to name the file containing the enumeration values which identify name strings, languages, encodings, etc. This file really contains a large set of constant macro definitions, taken from the TrueType and OpenType specifications.","title":"FT_TRUETYPE_IDS_H"},{"location":"ft2-header_file_macros.html#ft_truetype_tables_h","text":"# define FT_TRUETYPE_TABLES_H A macro used in #include statements to name the file containing the types and API specific to the TrueType (as well as OpenType) format.","title":"FT_TRUETYPE_TABLES_H"},{"location":"ft2-header_file_macros.html#ft_truetype_tags_h","text":"# define FT_TRUETYPE_TAGS_H A macro used in #include statements to name the file containing the definitions of TrueType four-byte \u2018tags\u2019 which identify blocks in SFNT-based font formats (i.e., TrueType and OpenType).","title":"FT_TRUETYPE_TAGS_H"},{"location":"ft2-header_file_macros.html#ft_bdf_h","text":"# define FT_BDF_H A macro used in #include statements to name the file containing the definitions of an API which accesses BDF-specific strings from a face.","title":"FT_BDF_H"},{"location":"ft2-header_file_macros.html#ft_cid_h","text":"# define FT_CID_H A macro used in #include statements to name the file containing the definitions of an API which access CID font information from a face.","title":"FT_CID_H"},{"location":"ft2-header_file_macros.html#ft_gzip_h","text":"# define FT_GZIP_H A macro used in #include statements to name the file containing the definitions of an API which supports gzip-compressed files.","title":"FT_GZIP_H"},{"location":"ft2-header_file_macros.html#ft_lzw_h","text":"# define FT_LZW_H A macro used in #include statements to name the file containing the definitions of an API which supports LZW-compressed files.","title":"FT_LZW_H"},{"location":"ft2-header_file_macros.html#ft_bzip2_h","text":"# define FT_BZIP2_H A macro used in #include statements to name the file containing the definitions of an API which supports bzip2-compressed files.","title":"FT_BZIP2_H"},{"location":"ft2-header_file_macros.html#ft_winfonts_h","text":"# define FT_WINFONTS_H A macro used in #include statements to name the file containing the definitions of an API which supports Windows FNT files.","title":"FT_WINFONTS_H"},{"location":"ft2-header_file_macros.html#ft_glyph_h","text":"# define FT_GLYPH_H A macro used in #include statements to name the file containing the API of the optional glyph management component.","title":"FT_GLYPH_H"},{"location":"ft2-header_file_macros.html#ft_bitmap_h","text":"# define FT_BITMAP_H A macro used in #include statements to name the file containing the API of the optional bitmap conversion component.","title":"FT_BITMAP_H"},{"location":"ft2-header_file_macros.html#ft_bbox_h","text":"# define FT_BBOX_H A macro used in #include statements to name the file containing the API of the optional exact bounding box computation routines.","title":"FT_BBOX_H"},{"location":"ft2-header_file_macros.html#ft_cache_h","text":"# define FT_CACHE_H A macro used in #include statements to name the file containing the API of the optional FreeType 2 cache sub-system.","title":"FT_CACHE_H"},{"location":"ft2-header_file_macros.html#ft_mac_h","text":"# define FT_MAC_H A macro used in #include statements to name the file containing the Macintosh-specific FreeType 2 API. The latter is used to access fonts embedded in resource forks. This header file must be explicitly included by client applications compiled on the Mac (note that the base API still works though).","title":"FT_MAC_H"},{"location":"ft2-header_file_macros.html#ft_multiple_masters_h","text":"# define FT_MULTIPLE_MASTERS_H A macro used in #include statements to name the file containing the optional multiple-masters management API of FreeType 2.","title":"FT_MULTIPLE_MASTERS_H"},{"location":"ft2-header_file_macros.html#ft_sfnt_names_h","text":"# define FT_SFNT_NAMES_H A macro used in #include statements to name the file containing the optional FreeType 2 API which accesses embedded \u2018name\u2019 strings in SFNT-based font formats (i.e., TrueType and OpenType).","title":"FT_SFNT_NAMES_H"},{"location":"ft2-header_file_macros.html#ft_opentype_validate_h","text":"# define FT_OPENTYPE_VALIDATE_H A macro used in #include statements to name the file containing the optional FreeType 2 API which validates OpenType tables (\u2018BASE\u2019, \u2018GDEF\u2019, \u2018GPOS\u2019, \u2018GSUB\u2019, \u2018JSTF\u2019).","title":"FT_OPENTYPE_VALIDATE_H"},{"location":"ft2-header_file_macros.html#ft_gx_validate_h","text":"# define FT_GX_VALIDATE_H A macro used in #include statements to name the file containing the optional FreeType 2 API which validates TrueTypeGX/AAT tables (\u2018feat\u2019, \u2018mort\u2019, \u2018morx\u2019, \u2018bsln\u2019, \u2018just\u2019, \u2018kern\u2019, \u2018opbd\u2019, \u2018trak\u2019, \u2018prop\u2019).","title":"FT_GX_VALIDATE_H"},{"location":"ft2-header_file_macros.html#ft_pfr_h","text":"# define FT_PFR_H A macro used in #include statements to name the file containing the FreeType 2 API which accesses PFR-specific data.","title":"FT_PFR_H"},{"location":"ft2-header_file_macros.html#ft_stroker_h","text":"# define FT_STROKER_H A macro used in #include statements to name the file containing the FreeType 2 API which provides functions to stroke outline paths.","title":"FT_STROKER_H"},{"location":"ft2-header_file_macros.html#ft_synthesis_h","text":"# define FT_SYNTHESIS_H A macro used in #include statements to name the file containing the FreeType 2 API which performs artificial obliquing and emboldening.","title":"FT_SYNTHESIS_H"},{"location":"ft2-header_file_macros.html#ft_font_formats_h","text":"# define FT_FONT_FORMATS_H /* deprecated */ # define FT_XFREE86_H FT_FONT_FORMATS_H A macro used in #include statements to name the file containing the FreeType 2 API which provides functions specific to font formats.","title":"FT_FONT_FORMATS_H"},{"location":"ft2-header_file_macros.html#ft_trigonometry_h","text":"# define FT_TRIGONOMETRY_H A macro used in #include statements to name the file containing the FreeType 2 API which performs trigonometric computations (e.g., cosines and arc tangents).","title":"FT_TRIGONOMETRY_H"},{"location":"ft2-header_file_macros.html#ft_lcd_filter_h","text":"# define FT_LCD_FILTER_H A macro used in #include statements to name the file containing the FreeType 2 API which performs color filtering for subpixel rendering.","title":"FT_LCD_FILTER_H"},{"location":"ft2-header_file_macros.html#ft_incremental_h","text":"# define FT_INCREMENTAL_H A macro used in #include statements to name the file containing the FreeType 2 API which performs incremental glyph loading.","title":"FT_INCREMENTAL_H"},{"location":"ft2-header_file_macros.html#ft_gasp_h","text":"# define FT_GASP_H A macro used in #include statements to name the file containing the FreeType 2 API which returns entries from the TrueType GASP table.","title":"FT_GASP_H"},{"location":"ft2-header_file_macros.html#ft_advances_h","text":"# define FT_ADVANCES_H A macro used in #include statements to name the file containing the FreeType 2 API which returns individual and ranged glyph advances.","title":"FT_ADVANCES_H"},{"location":"ft2-header_file_macros.html#ft_color_h","text":"# define FT_COLOR_H A macro used in #include statements to name the file containing the FreeType 2 API which handles the OpenType \u2018CPAL\u2019 table.","title":"FT_COLOR_H"},{"location":"ft2-header_file_macros.html#ft_otsvg_h","text":"# define FT_OTSVG_H A macro used in #include statements to name the file containing the FreeType 2 API which handles the OpenType \u2018SVG \u2019 glyphs.","title":"FT_OTSVG_H"},{"location":"ft2-header_inclusion.html","text":"FreeType \u00bb Docs \u00bb General Remarks \u00bb FreeType's header inclusion scheme FreeType's header inclusion scheme \u00b6 Synopsis \u00b6 To be as flexible as possible (and for historical reasons), you must load file ft2build.h first before other header files, for example #include #include #include ","title":"FreeType's header inclusion scheme"},{"location":"ft2-header_inclusion.html#freetypes-header-inclusion-scheme","text":"","title":"FreeType's header inclusion scheme"},{"location":"ft2-header_inclusion.html#synopsis","text":"To be as flexible as possible (and for historical reasons), you must load file ft2build.h first before other header files, for example #include #include #include ","title":"Synopsis"},{"location":"ft2-incremental.html","text":"FreeType \u00bb Docs \u00bb Miscellaneous \u00bb Incremental Loading Incremental Loading \u00b6 Synopsis \u00b6 This section contains various functions used to perform so-called \u2018incremental\u2019 glyph loading. This is a mode where all glyphs loaded from a given FT_Face are provided by the client application. Apart from that, all other tables are loaded normally from the font file. This mode is useful when FreeType is used within another engine, e.g., a PostScript Imaging Processor. To enable this mode, you must use FT_Open_Face , passing an FT_Parameter with the FT_PARAM_TAG_INCREMENTAL tag and an FT_Incremental_Interface value. See the comments for FT_Incremental_InterfaceRec for an example. FT_Incremental \u00b6 Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef struct FT_IncrementalRec_* FT_Incremental ; An opaque type describing a user-provided object used to implement \u2018incremental\u2019 glyph loading within FreeType. This is used to support embedded fonts in certain environments (e.g., PostScript interpreters), where the glyph data isn't in the font file, or must be overridden by different values. note It is up to client applications to create and implement FT_Incremental objects, as long as they provide implementations for the methods FT_Incremental_GetGlyphDataFunc , FT_Incremental_FreeGlyphDataFunc and FT_Incremental_GetGlyphMetricsFunc . See the description of FT_Incremental_InterfaceRec to understand how to use incremental objects with FreeType. FT_Incremental_MetricsRec \u00b6 Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef struct FT_Incremental_MetricsRec_ { FT_Long bearing_x; FT_Long bearing_y; FT_Long advance; FT_Long advance_v; /* since 2.3.12 */ } FT_Incremental_MetricsRec ; A small structure used to contain the basic glyph metrics returned by the FT_Incremental_GetGlyphMetricsFunc method. fields bearing_x Left bearing, in font units. bearing_y Top bearing, in font units. advance Horizontal component of glyph advance, in font units. advance_v Vertical component of glyph advance, in font units. note These correspond to horizontal or vertical metrics depending on the value of the vertical argument to the function FT_Incremental_GetGlyphMetricsFunc . FT_Incremental_Metrics \u00b6 Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef struct FT_Incremental_MetricsRec_* FT_Incremental_Metrics ; A handle to an FT_Incremental_MetricsRec structure. FT_Incremental_GetGlyphDataFunc \u00b6 Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef FT_Error (* FT_Incremental_GetGlyphDataFunc )( FT_Incremental incremental, FT_UInt glyph_index, FT_Data * adata ); A function called by FreeType to access a given glyph's data bytes during FT_Load_Glyph or FT_Load_Char if incremental loading is enabled. Note that the format of the glyph's data bytes depends on the font file format. For TrueType, it must correspond to the raw bytes within the \u2018glyf\u2019 table. For PostScript formats, it must correspond to the unencrypted charstring bytes, without any lenIV header. It is undefined for any other format. input incremental Handle to an opaque FT_Incremental handle provided by the client application. glyph_index Index of relevant glyph. output adata A structure describing the returned glyph data bytes (which will be accessed as a read-only byte block). return FreeType error code. 0 means success. note If this function returns successfully the method FT_Incremental_FreeGlyphDataFunc will be called later to release the data bytes. Nested calls to FT_Incremental_GetGlyphDataFunc can happen for compound glyphs. FT_Incremental_FreeGlyphDataFunc \u00b6 Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef void (* FT_Incremental_FreeGlyphDataFunc )( FT_Incremental incremental, FT_Data * data ); A function used to release the glyph data bytes returned by a successful call to FT_Incremental_GetGlyphDataFunc . input incremental A handle to an opaque FT_Incremental handle provided by the client application. data A structure describing the glyph data bytes (which will be accessed as a read-only byte block). FT_Incremental_GetGlyphMetricsFunc \u00b6 Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef FT_Error (* FT_Incremental_GetGlyphMetricsFunc ) ( FT_Incremental incremental, FT_UInt glyph_index, FT_Bool vertical, FT_Incremental_MetricsRec *ametrics ); A function used to retrieve the basic metrics of a given glyph index before accessing its data. This allows for handling font types such as PCL XL Format 1, Class 2 downloaded TrueType fonts, where the glyph metrics ( hmtx and vmtx tables) are permitted to be omitted from the font, and the relevant metrics included in the header of the glyph outline data. Importantly, this is not intended to allow custom glyph metrics (for example, Postscript Metrics dictionaries), because that conflicts with the requirements of outline hinting. Such custom metrics must be handled separately, by the calling application. input incremental A handle to an opaque FT_Incremental handle provided by the client application. glyph_index Index of relevant glyph. vertical If true, return vertical metrics. ametrics This parameter is used for both input and output. The original glyph metrics, if any, in font units. If metrics are not available all the values must be set to zero. output ametrics The glyph metrics in font units. FT_Incremental_FuncsRec \u00b6 Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef struct FT_Incremental_FuncsRec_ { FT_Incremental_GetGlyphDataFunc get_glyph_data; FT_Incremental_FreeGlyphDataFunc free_glyph_data; FT_Incremental_GetGlyphMetricsFunc get_glyph_metrics; } FT_Incremental_FuncsRec ; A table of functions for accessing fonts that load data incrementally. Used in FT_Incremental_InterfaceRec . fields get_glyph_data The function to get glyph data. Must not be null. free_glyph_data The function to release glyph data. Must not be null. get_glyph_metrics The function to get glyph metrics. May be null if the font does not require it. FT_Incremental_InterfaceRec \u00b6 Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef struct FT_Incremental_InterfaceRec_ { const FT_Incremental_FuncsRec * funcs; FT_Incremental object; } FT_Incremental_InterfaceRec ; A structure to be used with FT_Open_Face to indicate that the user wants to support incremental glyph loading. You should use it with FT_PARAM_TAG_INCREMENTAL as in the following example: FT_Incremental_InterfaceRec inc_int; FT_Parameter parameter; FT_Open_Args open_args; // set up incremental descriptor inc_int.funcs = my_funcs; inc_int.object = my_object; // set up optional parameter parameter.tag = FT_PARAM_TAG_INCREMENTAL; parameter.data = &inc_int; // set up FT_Open_Args structure open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; open_args.pathname = my_font_pathname; open_args.num_params = 1; open_args.params = ¶meter; // we use one optional argument // open the font error = FT_Open_Face( library, &open_args, index, &face ); ... FT_Incremental_Interface \u00b6 Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef FT_Incremental_InterfaceRec * FT_Incremental_Interface ; A pointer to an FT_Incremental_InterfaceRec structure.","title":"Incremental Loading"},{"location":"ft2-incremental.html#incremental-loading","text":"","title":"Incremental Loading"},{"location":"ft2-incremental.html#synopsis","text":"This section contains various functions used to perform so-called \u2018incremental\u2019 glyph loading. This is a mode where all glyphs loaded from a given FT_Face are provided by the client application. Apart from that, all other tables are loaded normally from the font file. This mode is useful when FreeType is used within another engine, e.g., a PostScript Imaging Processor. To enable this mode, you must use FT_Open_Face , passing an FT_Parameter with the FT_PARAM_TAG_INCREMENTAL tag and an FT_Incremental_Interface value. See the comments for FT_Incremental_InterfaceRec for an example.","title":"Synopsis"},{"location":"ft2-incremental.html#ft_incremental","text":"Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef struct FT_IncrementalRec_* FT_Incremental ; An opaque type describing a user-provided object used to implement \u2018incremental\u2019 glyph loading within FreeType. 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It is undefined for any other format.","title":"FT_Incremental_GetGlyphDataFunc"},{"location":"ft2-incremental.html#ft_incremental_freeglyphdatafunc","text":"Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef void (* FT_Incremental_FreeGlyphDataFunc )( FT_Incremental incremental, FT_Data * data ); A function used to release the glyph data bytes returned by a successful call to FT_Incremental_GetGlyphDataFunc .","title":"FT_Incremental_FreeGlyphDataFunc"},{"location":"ft2-incremental.html#ft_incremental_getglyphmetricsfunc","text":"Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef FT_Error (* FT_Incremental_GetGlyphMetricsFunc ) ( FT_Incremental incremental, FT_UInt glyph_index, FT_Bool vertical, FT_Incremental_MetricsRec *ametrics ); A function used to retrieve the basic metrics of a given glyph index before accessing its data. This allows for handling font types such as PCL XL Format 1, Class 2 downloaded TrueType fonts, where the glyph metrics ( hmtx and vmtx tables) are permitted to be omitted from the font, and the relevant metrics included in the header of the glyph outline data. Importantly, this is not intended to allow custom glyph metrics (for example, Postscript Metrics dictionaries), because that conflicts with the requirements of outline hinting. Such custom metrics must be handled separately, by the calling application.","title":"FT_Incremental_GetGlyphMetricsFunc"},{"location":"ft2-incremental.html#ft_incremental_funcsrec","text":"Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef struct FT_Incremental_FuncsRec_ { FT_Incremental_GetGlyphDataFunc get_glyph_data; FT_Incremental_FreeGlyphDataFunc free_glyph_data; FT_Incremental_GetGlyphMetricsFunc get_glyph_metrics; } FT_Incremental_FuncsRec ; A table of functions for accessing fonts that load data incrementally. Used in FT_Incremental_InterfaceRec .","title":"FT_Incremental_FuncsRec"},{"location":"ft2-incremental.html#ft_incremental_interfacerec","text":"Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef struct FT_Incremental_InterfaceRec_ { const FT_Incremental_FuncsRec * funcs; FT_Incremental object; } FT_Incremental_InterfaceRec ; A structure to be used with FT_Open_Face to indicate that the user wants to support incremental glyph loading. You should use it with FT_PARAM_TAG_INCREMENTAL as in the following example: FT_Incremental_InterfaceRec inc_int; FT_Parameter parameter; FT_Open_Args open_args; // set up incremental descriptor inc_int.funcs = my_funcs; inc_int.object = my_object; // set up optional parameter parameter.tag = FT_PARAM_TAG_INCREMENTAL; parameter.data = &inc_int; // set up FT_Open_Args structure open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; open_args.pathname = my_font_pathname; open_args.num_params = 1; open_args.params = ¶meter; // we use one optional argument // open the font error = FT_Open_Face( library, &open_args, index, &face ); ...","title":"FT_Incremental_InterfaceRec"},{"location":"ft2-incremental.html#ft_incremental_interface","text":"Defined in FT_INCREMENTAL_H (freetype/ftincrem.h). typedef FT_Incremental_InterfaceRec * FT_Incremental_Interface ; A pointer to an FT_Incremental_InterfaceRec structure.","title":"FT_Incremental_Interface"},{"location":"ft2-index.html","text":"FreeType \u00bb Docs \u00bb Global Index FreeType-2.13.2 API Reference \u00b6 B \u00b6 BDF_Property BDF_PROPERTY_TYPE_ATOM BDF_PROPERTY_TYPE_CARDINAL BDF_PROPERTY_TYPE_INTEGER BDF_PROPERTY_TYPE_NONE BDF_PropertyRec BDF_PropertyType C \u00b6 CID_FaceDict CID_FaceDictRec CID_FaceInfo CID_FaceInfoRec CID_FontDict CID_Info D \u00b6 darkening-parameters default-script F \u00b6 fallback-script FREETYPE_MAJOR FREETYPE_MINOR FREETYPE_PATCH FREETYPE_XXX FT_Activate_Size FT_Add_Default_Modules FT_Add_Module FT_ADVANCE_FLAG_FAST_ONLY FT_ADVANCES_H FT_Affine23 FT_Alloc_Func FT_Angle FT_ANGLE_2PI FT_Angle_Diff FT_ANGLE_PI FT_ANGLE_PI2 FT_ANGLE_PI4 FT_Atan2 FT_Attach_File FT_Attach_Stream FT_AUTOHINTER_H FT_AUTOHINTER_SCRIPT_CJK FT_AUTOHINTER_SCRIPT_INDIC FT_AUTOHINTER_SCRIPT_LATIN FT_AUTOHINTER_SCRIPT_NONE FT_AUTOHINTER_SCRIPT_XXX FT_BBox FT_BBOX_H FT_BDF_H FT_Bitmap FT_Bitmap_Blend FT_Bitmap_Convert FT_Bitmap_Copy FT_Bitmap_Done FT_Bitmap_Embolden FT_BITMAP_H FT_Bitmap_Init FT_Bitmap_Size FT_BitmapGlyph FT_BitmapGlyphRec FT_Bool FT_Byte FT_Bytes FT_BZIP2_H FT_CACHE_H FT_CeilFix FT_CFF_DRIVER_H FT_Char FT_CharMap FT_CharMapRec FT_CID_H FT_ClassicKern_Free FT_ClassicKern_Validate FT_ClipBox FT_Color FT_COLOR_H FT_COLOR_INCLUDE_ROOT_TRANSFORM FT_COLOR_NO_ROOT_TRANSFORM FT_Color_Root_Transform FT_ColorIndex FT_ColorLine FT_ColorStop FT_ColorStopIterator FT_COLR_Paint FT_Composite_Mode FT_CONFIG_CONFIG_H FT_CONFIG_MODULES_H FT_CONFIG_OPTIONS_H FT_CONFIG_STANDARD_LIBRARY_H FT_Cos FT_Custom_Log_Handler FT_Data FT_DEBUG_HOOK_TRUETYPE FT_DEBUG_HOOK_XXX FT_DebugHook_Func FT_DivFix FT_Done_Face FT_Done_FreeType FT_Done_Glyph FT_Done_Library FT_Done_MM_Var FT_Done_Size FT_Driver FT_DRIVER_H FT_ENC_TAG FT_Encoding FT_ENCODING_ADOBE_CUSTOM FT_ENCODING_ADOBE_EXPERT FT_ENCODING_ADOBE_LATIN_1 FT_ENCODING_ADOBE_STANDARD FT_ENCODING_APPLE_ROMAN FT_ENCODING_BIG5 FT_ENCODING_JOHAB FT_ENCODING_MS_BIG5 FT_ENCODING_MS_GB2312 FT_ENCODING_MS_JOHAB FT_ENCODING_MS_SJIS FT_ENCODING_MS_SYMBOL FT_ENCODING_MS_WANSUNG FT_ENCODING_NONE FT_ENCODING_OLD_LATIN_2 FT_ENCODING_PRC FT_ENCODING_SJIS FT_ENCODING_UNICODE FT_ENCODING_WANSUNG FT_Err_XXX FT_Error FT_Error_String FT_ERRORS_H FT_F26Dot6 FT_F2Dot14 FT_Face FT_Face_CheckTrueTypePatents FT_FACE_DRIVER_NAME FT_FACE_FLAG_CID_KEYED FT_FACE_FLAG_COLOR FT_FACE_FLAG_EXTERNAL_STREAM FT_FACE_FLAG_FAST_GLYPHS FT_FACE_FLAG_FIXED_SIZES FT_FACE_FLAG_FIXED_WIDTH FT_FACE_FLAG_GLYPH_NAMES FT_FACE_FLAG_HINTER FT_FACE_FLAG_HORIZONTAL FT_FACE_FLAG_KERNING FT_FACE_FLAG_MULTIPLE_MASTERS FT_FACE_FLAG_SBIX FT_FACE_FLAG_SBIX_OVERLAY FT_FACE_FLAG_SCALABLE FT_FACE_FLAG_SFNT FT_FACE_FLAG_SVG FT_FACE_FLAG_TRICKY FT_FACE_FLAG_VARIATION FT_FACE_FLAG_VERTICAL FT_FACE_FLAG_XXX FT_Face_GetCharsOfVariant FT_Face_GetCharVariantIndex FT_Face_GetCharVariantIsDefault FT_Face_GetVariantSelectors FT_Face_GetVariantsOfChar FT_Face_Internal FT_Face_Properties FT_Face_SetUnpatentedHinting FT_FaceRec FT_Fixed FT_FloorFix FT_FONT_FORMATS_H FT_Free_Func FT_FREETYPE_H FT_FSTYPE_BITMAP_EMBEDDING_ONLY FT_FSTYPE_EDITABLE_EMBEDDING FT_FSTYPE_INSTALLABLE_EMBEDDING FT_FSTYPE_NO_SUBSETTING FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING FT_FSTYPE_XXX FT_FWord FT_GASP_DO_GRAY FT_GASP_DO_GRIDFIT FT_GASP_H FT_GASP_NO_TABLE FT_GASP_SYMMETRIC_GRIDFIT FT_GASP_SYMMETRIC_SMOOTHING FT_GASP_XXX FT_Generic FT_Generic_Finalizer FT_Get_Advance FT_Get_Advances FT_Get_BDF_Charset_ID FT_Get_BDF_Property FT_Get_Char_Index FT_Get_Charmap_Index FT_Get_CID_From_Glyph_Index FT_Get_CID_Is_Internally_CID_Keyed FT_Get_CID_Registry_Ordering_Supplement FT_Get_CMap_Format FT_Get_CMap_Language_ID FT_Get_Color_Glyph_ClipBox FT_Get_Color_Glyph_Layer FT_Get_Color_Glyph_Paint FT_Get_Colorline_Stops FT_Get_Default_Named_Instance FT_Get_First_Char FT_Get_Font_Format FT_Get_FSType_Flags FT_Get_Gasp FT_Get_Glyph FT_Get_Glyph_Name FT_Get_Kerning FT_Get_MM_Blend_Coordinates FT_Get_MM_Var FT_Get_MM_WeightVector FT_Get_Module FT_Get_Multi_Master FT_Get_Name_Index FT_Get_Next_Char FT_Get_Paint FT_Get_Paint_Layers FT_Get_PFR_Advance FT_Get_PFR_Kerning FT_Get_PFR_Metrics FT_Get_Postscript_Name FT_Get_PS_Font_Info FT_Get_PS_Font_Private FT_Get_PS_Font_Value FT_Get_Renderer FT_Get_Sfnt_LangTag FT_Get_Sfnt_Name FT_Get_Sfnt_Name_Count FT_Get_Sfnt_Table FT_Get_SubGlyph_Info FT_Get_Track_Kerning FT_Get_Transform FT_Get_TrueType_Engine_Type FT_Get_Var_Axis_Flags FT_Get_Var_Blend_Coordinates FT_Get_Var_Design_Coordinates FT_Get_WinFNT_Header FT_GetFile_From_Mac_ATS_Name FT_GetFile_From_Mac_Name FT_GetFilePath_From_Mac_ATS_Name FT_Glyph FT_GLYPH_BBOX_GRIDFIT FT_Glyph_BBox_Mode FT_GLYPH_BBOX_PIXELS FT_GLYPH_BBOX_SUBPIXELS FT_GLYPH_BBOX_TRUNCATE FT_GLYPH_BBOX_UNSCALED FT_Glyph_Copy FT_Glyph_Format FT_GLYPH_FORMAT_BITMAP FT_GLYPH_FORMAT_COMPOSITE FT_GLYPH_FORMAT_NONE FT_GLYPH_FORMAT_OUTLINE FT_GLYPH_FORMAT_PLOTTER FT_GLYPH_FORMAT_SVG FT_Glyph_Get_CBox FT_GLYPH_H FT_Glyph_Metrics FT_Glyph_Stroke FT_Glyph_StrokeBorder FT_Glyph_To_Bitmap FT_Glyph_Transform FT_GlyphRec FT_GlyphSlot FT_GlyphSlot_Own_Bitmap FT_GlyphSlotRec FT_GX_VALIDATE_H FT_GZIP_H FT_Gzip_Uncompress FT_HAS_COLOR FT_HAS_FAST_GLYPHS FT_HAS_FIXED_SIZES FT_HAS_GLYPH_NAMES FT_HAS_HORIZONTAL FT_HAS_KERNING FT_HAS_MULTIPLE_MASTERS FT_Has_PS_Glyph_Names FT_HAS_SBIX FT_HAS_SBIX_OVERLAY FT_HAS_SVG FT_HAS_VERTICAL FT_HINTING_ADOBE FT_HINTING_FREETYPE FT_HINTING_XXX FT_IMAGE_H FT_IMAGE_TAG FT_Incremental FT_Incremental_FreeGlyphDataFunc FT_Incremental_FuncsRec FT_Incremental_GetGlyphDataFunc FT_Incremental_GetGlyphMetricsFunc FT_INCREMENTAL_H FT_Incremental_Interface FT_Incremental_InterfaceRec FT_Incremental_Metrics FT_Incremental_MetricsRec FT_Init_FreeType FT_Int FT_Int16 FT_Int32 FT_Int64 FT_IS_CID_KEYED FT_IS_FIXED_WIDTH FT_IS_NAMED_INSTANCE FT_IS_SCALABLE FT_IS_SFNT FT_IS_TRICKY FT_IS_VARIATION FT_KERNING_DEFAULT FT_Kerning_Mode FT_KERNING_UNFITTED FT_KERNING_UNSCALED FT_LayerIterator FT_LCD_FILTER_DEFAULT FT_LCD_FILTER_H FT_LCD_FILTER_LEGACY FT_LCD_FILTER_LEGACY1 FT_LCD_FILTER_LIGHT FT_LCD_FILTER_NONE FT_LcdFilter FT_LcdFiveTapFilter FT_Library FT_Library_SetLcdFilter FT_Library_SetLcdFilterWeights FT_Library_SetLcdGeometry FT_Library_Version FT_List FT_List_Add FT_List_Destructor FT_List_Finalize FT_List_Find FT_LIST_H FT_List_Insert FT_List_Iterate FT_List_Iterator FT_List_Remove FT_List_Up FT_ListNode FT_ListNodeRec FT_ListRec FT_LOAD_BITMAP_METRICS_ONLY FT_Load_Char FT_LOAD_COLOR FT_LOAD_COMPUTE_METRICS FT_LOAD_CROP_BITMAP FT_LOAD_DEFAULT FT_LOAD_FORCE_AUTOHINT FT_Load_Glyph FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH FT_LOAD_IGNORE_TRANSFORM FT_LOAD_LINEAR_DESIGN FT_LOAD_MONOCHROME FT_LOAD_NO_AUTOHINT FT_LOAD_NO_BITMAP FT_LOAD_NO_HINTING FT_LOAD_NO_RECURSE FT_LOAD_NO_SCALE FT_LOAD_NO_SVG FT_LOAD_PEDANTIC FT_LOAD_RENDER FT_LOAD_SBITS_ONLY FT_Load_Sfnt_Table FT_LOAD_TARGET_LCD FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_MODE FT_LOAD_TARGET_MONO FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_XXX FT_LOAD_VERTICAL_LAYOUT FT_LOAD_XXX FT_Long FT_LZW_H FT_MAC_H FT_MAKE_TAG FT_Matrix FT_Matrix_Invert FT_Matrix_Multiply FT_Memory FT_MemoryRec FT_MM_Axis FT_MM_Var FT_Module FT_Module_Class FT_Module_Constructor FT_Module_Destructor FT_MODULE_ERRORS_H FT_MODULE_H FT_Module_Requester FT_MulDiv FT_MulFix FT_Multi_Master FT_MULTIPLE_MASTERS_H FT_New_Face FT_New_Face_From_FOND FT_New_Face_From_FSRef FT_New_Face_From_FSSpec FT_New_Glyph FT_New_Library FT_New_Memory_Face FT_New_Size FT_Offset FT_OpaquePaint FT_Open_Args FT_OPEN_DRIVER FT_Open_Face FT_OPEN_MEMORY FT_OPEN_PARAMS FT_OPEN_PATHNAME FT_OPEN_STREAM FT_OPEN_XXX FT_OpenType_Free FT_OpenType_Validate FT_OPENTYPE_VALIDATE_H FT_Orientation FT_ORIENTATION_FILL_LEFT FT_ORIENTATION_FILL_RIGHT FT_ORIENTATION_NONE FT_ORIENTATION_POSTSCRIPT FT_ORIENTATION_TRUETYPE FT_OTSVG_H FT_Outline FT_Outline_Check FT_Outline_ConicToFunc FT_Outline_Copy FT_Outline_CubicToFunc FT_Outline_Decompose FT_Outline_Done FT_Outline_Embolden FT_Outline_EmboldenXY FT_OUTLINE_EVEN_ODD_FILL FT_Outline_Funcs FT_Outline_Get_BBox FT_Outline_Get_Bitmap FT_Outline_Get_CBox FT_Outline_Get_Orientation FT_Outline_GetInsideBorder FT_Outline_GetOutsideBorder FT_OUTLINE_H FT_OUTLINE_HIGH_PRECISION FT_OUTLINE_IGNORE_DROPOUTS FT_OUTLINE_INCLUDE_STUBS FT_Outline_LineToFunc FT_Outline_MoveToFunc FT_Outline_New FT_OUTLINE_NONE FT_OUTLINE_OVERLAP FT_OUTLINE_OWNER FT_Outline_Render FT_Outline_Reverse FT_OUTLINE_REVERSE_FILL FT_OUTLINE_SINGLE_PASS FT_OUTLINE_SMART_DROPOUTS FT_Outline_Transform FT_Outline_Translate FT_OUTLINE_XXX FT_OutlineGlyph FT_OutlineGlyphRec FT_PaintColrGlyph FT_PaintColrLayers FT_PaintComposite FT_PaintExtend FT_PaintFormat FT_PaintGlyph FT_PaintLinearGradient FT_PaintRadialGradient FT_PaintRotate FT_PaintScale FT_PaintSkew FT_PaintSolid FT_PaintSweepGradient FT_PaintTransform FT_PaintTranslate FT_Palette_Data FT_Palette_Data_Get FT_PALETTE_FOR_DARK_BACKGROUND FT_PALETTE_FOR_LIGHT_BACKGROUND FT_Palette_Select FT_Palette_Set_Foreground_Color FT_PALETTE_XXX FT_PARAM_TAG_IGNORE_SBIX FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY FT_PARAM_TAG_INCREMENTAL FT_PARAM_TAG_LCD_FILTER_WEIGHTS FT_PARAM_TAG_RANDOM_SEED FT_PARAM_TAG_STEM_DARKENING FT_PARAM_TAG_UNPATENTED_HINTING FT_Parameter FT_PCF_DRIVER_H FT_PFR_H FT_Pixel_Mode FT_PIXEL_MODE_BGRA FT_PIXEL_MODE_GRAY FT_PIXEL_MODE_GRAY2 FT_PIXEL_MODE_GRAY4 FT_PIXEL_MODE_LCD FT_PIXEL_MODE_LCD_V FT_PIXEL_MODE_MONO FT_PIXEL_MODE_NONE FT_Pointer FT_Pos FT_Prop_GlyphToScriptMap FT_Prop_IncreaseXHeight FT_Property_Get FT_Property_Set FT_PtrDist FT_Raster FT_Raster_BitSet_Func FT_Raster_BitTest_Func FT_Raster_DoneFunc FT_RASTER_FLAG_AA FT_RASTER_FLAG_CLIP FT_RASTER_FLAG_DEFAULT FT_RASTER_FLAG_DIRECT FT_RASTER_FLAG_SDF FT_RASTER_FLAG_XXX FT_Raster_Funcs FT_Raster_NewFunc FT_Raster_Params FT_Raster_RenderFunc FT_Raster_ResetFunc FT_Raster_SetModeFunc FT_Realloc_Func FT_Reference_Face FT_Reference_Library FT_Remove_Module FT_Render_Glyph FT_RENDER_H FT_Render_Mode FT_RENDER_MODE_LCD FT_RENDER_MODE_LCD_V FT_RENDER_MODE_LIGHT FT_RENDER_MODE_MONO FT_RENDER_MODE_NORMAL FT_RENDER_MODE_SDF FT_Renderer FT_Renderer_Class FT_Request_Size FT_RoundFix FT_Select_Charmap FT_Select_Size FT_Set_Char_Size FT_Set_Charmap FT_Set_Debug_Hook FT_Set_Default_Log_Handler FT_Set_Default_Properties FT_Set_Log_Handler FT_Set_MM_Blend_Coordinates FT_Set_MM_Design_Coordinates FT_Set_MM_WeightVector FT_Set_Named_Instance FT_Set_Pixel_Sizes FT_Set_Renderer FT_Set_Transform FT_Set_Var_Blend_Coordinates FT_Set_Var_Design_Coordinates FT_SFNT_HEAD FT_SFNT_HHEA FT_SFNT_MAXP FT_SFNT_NAMES_H FT_SFNT_OS2 FT_SFNT_PCLT FT_SFNT_POST FT_Sfnt_Table_Info FT_Sfnt_Tag FT_SFNT_VHEA FT_SfntLangTag FT_SfntName FT_Short FT_Sin FT_Size FT_Size_Internal FT_Size_Metrics FT_Size_Request FT_Size_Request_Type FT_SIZE_REQUEST_TYPE_BBOX FT_SIZE_REQUEST_TYPE_CELL FT_SIZE_REQUEST_TYPE_NOMINAL FT_SIZE_REQUEST_TYPE_REAL_DIM FT_SIZE_REQUEST_TYPE_SCALES FT_Size_RequestRec FT_SizeRec FT_SIZES_H FT_Slot_Internal FT_Span FT_SpanFunc FT_Stream FT_Stream_CloseFunc FT_Stream_IoFunc FT_Stream_OpenBzip2 FT_Stream_OpenGzip FT_Stream_OpenLZW FT_StreamDesc FT_StreamRec FT_String FT_Stroker FT_Stroker_BeginSubPath FT_STROKER_BORDER_LEFT FT_STROKER_BORDER_RIGHT FT_Stroker_ConicTo FT_Stroker_CubicTo FT_Stroker_Done FT_Stroker_EndSubPath FT_Stroker_Export FT_Stroker_ExportBorder FT_Stroker_GetBorderCounts FT_Stroker_GetCounts FT_STROKER_H FT_Stroker_LineCap FT_STROKER_LINECAP_BUTT FT_STROKER_LINECAP_ROUND FT_STROKER_LINECAP_SQUARE FT_Stroker_LineJoin FT_STROKER_LINEJOIN_BEVEL FT_STROKER_LINEJOIN_MITER FT_STROKER_LINEJOIN_MITER_FIXED FT_STROKER_LINEJOIN_MITER_VARIABLE FT_STROKER_LINEJOIN_ROUND FT_Stroker_LineTo FT_Stroker_New FT_Stroker_ParseOutline FT_Stroker_Rewind FT_Stroker_Set FT_StrokerBorder FT_STYLE_FLAG_BOLD FT_STYLE_FLAG_ITALIC FT_STYLE_FLAG_XXX FT_SubGlyph FT_SUBGLYPH_FLAG_2X2 FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID FT_SUBGLYPH_FLAG_SCALE FT_SUBGLYPH_FLAG_USE_MY_METRICS FT_SUBGLYPH_FLAG_XXX FT_SUBGLYPH_FLAG_XY_SCALE FT_SVG_Document FT_SVG_DocumentRec FT_SvgGlyph FT_SvgGlyphRec FT_SYNTHESIS_H FT_SYSTEM_H FT_Tag FT_Tan FT_Trace_Set_Default_Level FT_Trace_Set_Level FT_TRIGONOMETRY_H FT_TRUETYPE_DRIVER_H FT_TRUETYPE_ENGINE_TYPE_NONE FT_TRUETYPE_ENGINE_TYPE_PATENTED FT_TRUETYPE_ENGINE_TYPE_UNPATENTED FT_TRUETYPE_IDS_H FT_TRUETYPE_TABLES_H FT_TRUETYPE_TAGS_H FT_TrueTypeEngineType FT_TrueTypeGX_Free FT_TrueTypeGX_Validate FT_TYPE1_TABLES_H FT_TYPES_H FT_UFWord FT_UInt FT_UInt16 FT_UInt32 FT_UInt64 FT_ULong FT_UnitVector FT_UShort FT_VALIDATE_APPLE FT_VALIDATE_BASE FT_VALIDATE_bsln FT_VALIDATE_CKERN FT_VALIDATE_CKERNXXX FT_VALIDATE_feat FT_VALIDATE_GDEF FT_VALIDATE_GPOS FT_VALIDATE_GSUB FT_VALIDATE_GX FT_VALIDATE_GX_LENGTH FT_VALIDATE_GXXXX FT_VALIDATE_JSTF FT_VALIDATE_just FT_VALIDATE_kern FT_VALIDATE_lcar FT_VALIDATE_MATH FT_VALIDATE_mort FT_VALIDATE_morx FT_VALIDATE_MS FT_VALIDATE_opbd FT_VALIDATE_OT FT_VALIDATE_OTXXX FT_VALIDATE_prop FT_VALIDATE_trak FT_Var_Axis FT_VAR_AXIS_FLAG_HIDDEN FT_VAR_AXIS_FLAG_XXX FT_Var_Named_Style FT_Vector FT_Vector_From_Polar FT_Vector_Length FT_Vector_Polarize FT_Vector_Rotate FT_Vector_Transform FT_Vector_Unit FT_WinFNT_Header FT_WinFNT_HeaderRec FT_WinFNT_ID_CP1250 FT_WinFNT_ID_CP1251 FT_WinFNT_ID_CP1252 FT_WinFNT_ID_CP1253 FT_WinFNT_ID_CP1254 FT_WinFNT_ID_CP1255 FT_WinFNT_ID_CP1256 FT_WinFNT_ID_CP1257 FT_WinFNT_ID_CP1258 FT_WinFNT_ID_CP1361 FT_WinFNT_ID_CP874 FT_WinFNT_ID_CP932 FT_WinFNT_ID_CP936 FT_WinFNT_ID_CP949 FT_WinFNT_ID_CP950 FT_WinFNT_ID_DEFAULT FT_WinFNT_ID_MAC FT_WinFNT_ID_OEM FT_WinFNT_ID_SYMBOL FT_WinFNT_ID_XXX FT_WINFONTS_H FTC_CMapCache FTC_CMapCache_Lookup FTC_CMapCache_New FTC_Face_Requester FTC_FaceID FTC_ImageCache FTC_ImageCache_Lookup FTC_ImageCache_LookupScaler FTC_ImageCache_New FTC_ImageType FTC_ImageTypeRec FTC_Manager FTC_Manager_Done FTC_Manager_LookupFace FTC_Manager_LookupSize FTC_Manager_New FTC_Manager_RemoveFaceID FTC_Manager_Reset 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Only some very basic data is covered; see also the chapter on the format-specific API for more. FT_Get_Name_Index \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt ) FT_Get_Name_Index ( FT_Face face, const FT_String * glyph_name ); Return the glyph index of a given glyph name. This only works for those faces where FT_HAS_GLYPH_NAMES returns true. input face A handle to the source face object. glyph_name The glyph name. return The glyph index. 0 means \u2018undefined character code\u2019. note Acceptable glyph names might come from the Adobe Glyph List . See FT_Get_Glyph_Name for the inverse functionality. This function has limited capabilities if the config macro FT_CONFIG_OPTION_POSTSCRIPT_NAMES is not defined in ftoption.h : It then works only for fonts that actually embed glyph names (which many recent OpenType fonts do not). FT_Get_Glyph_Name \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Get_Glyph_Name ( FT_Face face, FT_UInt glyph_index, FT_Pointer buffer, FT_UInt buffer_max ); Retrieve the ASCII name of a given glyph in a face. This only works for those faces where FT_HAS_GLYPH_NAMES returns true. input face A handle to a source face object. glyph_index The glyph index. buffer_max The maximum number of bytes available in the buffer. output buffer A pointer to a target buffer where the name is copied to. return FreeType error code. 0 means success. note An error is returned if the face doesn't provide glyph names or if the glyph index is invalid. In all cases of failure, the first byte of buffer is set to 0 to indicate an empty name. The glyph name is truncated to fit within the buffer if it is too long. The returned string is always zero-terminated. Be aware that FreeType reorders glyph indices internally so that glyph index 0 always corresponds to the \u2018missing glyph\u2019 (called \u2018.notdef\u2019). This function has limited capabilities if the config macro FT_CONFIG_OPTION_POSTSCRIPT_NAMES is not defined in ftoption.h : It then works only for fonts that actually embed glyph names (which many recent OpenType fonts do not). FT_Get_Postscript_Name \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( const char * ) FT_Get_Postscript_Name ( FT_Face face ); Retrieve the ASCII PostScript name of a given face, if available. This only works with PostScript, TrueType, and OpenType fonts. input face A handle to the source face object. return A pointer to the face's PostScript name. NULL if unavailable. note The returned pointer is owned by the face and is destroyed with it. For variation fonts, this string changes if you select a different instance, and you have to call FT_Get_PostScript_Name again to retrieve it. FreeType follows Adobe TechNote #5902, \u2018Generating PostScript Names for Fonts Using OpenType Font Variations\u2019. https://download.macromedia.com/pub/developer/opentype/tech-notes/5902.AdobePSNameGeneration.html [Since 2.9] Special PostScript names for named instances are only returned if the named instance is set with FT_Set_Named_Instance (and the font has corresponding entries in its \u2018fvar\u2019 table or is the default named instance). If FT_IS_VARIATION returns true, the algorithmically derived PostScript name is provided, not looking up special entries for named instances. FT_Get_FSType_Flags \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UShort ) FT_Get_FSType_Flags ( FT_Face face ); Return the fsType flags for a font. input face A handle to the source face object. return The fsType flags, see FT_FSTYPE_XXX . note Use this function rather than directly reading the fs_type field in the PS_FontInfoRec structure, which is only guaranteed to return the correct results for Type 1 fonts. since 2.3.8 FT_FSTYPE_XXX \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000 # define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002 # define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004 # define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008 # define FT_FSTYPE_NO_SUBSETTING 0x0100 # define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200 A list of bit flags used in the fsType field of the OS/2 table in a TrueType or OpenType font and the FSType entry in a PostScript font. These bit flags are returned by FT_Get_FSType_Flags ; they inform client applications of embedding and subsetting restrictions associated with a font. See https://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/FontPolicies.pdf for more details. values FT_FSTYPE_INSTALLABLE_EMBEDDING Fonts with no fsType bit set may be embedded and permanently installed on the remote system by an application. FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING Fonts that have only this bit set must not be modified, embedded or exchanged in any manner without first obtaining permission of the font software copyright owner. FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING The font may be embedded and temporarily loaded on the remote system. Documents containing Preview & Print fonts must be opened \u2018read-only\u2019; no edits can be applied to the document. FT_FSTYPE_EDITABLE_EMBEDDING The font may be embedded but must only be installed temporarily on other systems. In contrast to Preview & Print fonts, documents containing editable fonts may be opened for reading, editing is permitted, and changes may be saved. FT_FSTYPE_NO_SUBSETTING The font may not be subsetted prior to embedding. FT_FSTYPE_BITMAP_EMBEDDING_ONLY Only bitmaps contained in the font may be embedded; no outline data may be embedded. If there are no bitmaps available in the font, then the font is unembeddable. note The flags are ORed together, thus more than a single value can be returned. While the fsType flags can indicate that a font may be embedded, a license with the font vendor may be separately required to use the font in this way. FT_Get_SubGlyph_Info \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Get_SubGlyph_Info ( FT_GlyphSlot glyph, FT_UInt sub_index, FT_Int *p_index, FT_UInt *p_flags, FT_Int *p_arg1, FT_Int *p_arg2, FT_Matrix *p_transform ); Retrieve a description of a given subglyph. Only use it if glyph->format is FT_GLYPH_FORMAT_COMPOSITE ; an error is returned otherwise. input glyph The source glyph slot. sub_index The index of the subglyph. Must be less than glyph->num_subglyphs . output p_index The glyph index of the subglyph. p_flags The subglyph flags, see FT_SUBGLYPH_FLAG_XXX . p_arg1 The subglyph's first argument (if any). p_arg2 The subglyph's second argument (if any). p_transform The subglyph transformation (if any). return FreeType error code. 0 means success. note The values of *p_arg1 , *p_arg2 , and *p_transform must be interpreted depending on the flags returned in *p_flags . See the OpenType specification for details. https://docs.microsoft.com/en-us/typography/opentype/spec/glyf#composite-glyph-description FT_SUBGLYPH_FLAG_XXX \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1 # define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2 # define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4 # define FT_SUBGLYPH_FLAG_SCALE 8 # define FT_SUBGLYPH_FLAG_XY_SCALE 0x40 # define FT_SUBGLYPH_FLAG_2X2 0x80 # define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200 A list of constants describing subglyphs. Please refer to the \u2018glyf\u2019 table description in the OpenType specification for the meaning of the various flags (which get synthesized for non-OpenType subglyphs). https://docs.microsoft.com/en-us/typography/opentype/spec/glyf#composite-glyph-description values FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID FT_SUBGLYPH_FLAG_SCALE FT_SUBGLYPH_FLAG_XY_SCALE FT_SUBGLYPH_FLAG_2X2 FT_SUBGLYPH_FLAG_USE_MY_METRICS","title":"Information Retrieval"},{"location":"ft2-information_retrieval.html#information-retrieval","text":"","title":"Information Retrieval"},{"location":"ft2-information_retrieval.html#synopsis","text":"Functions to retrieve font and glyph information. Only some very basic data is covered; see also the chapter on the format-specific API for more.","title":"Synopsis"},{"location":"ft2-information_retrieval.html#ft_get_name_index","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UInt ) FT_Get_Name_Index ( FT_Face face, const FT_String * glyph_name ); Return the glyph index of a given glyph name. This only works for those faces where FT_HAS_GLYPH_NAMES returns true.","title":"FT_Get_Name_Index"},{"location":"ft2-information_retrieval.html#ft_get_glyph_name","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Get_Glyph_Name ( FT_Face face, FT_UInt glyph_index, FT_Pointer buffer, FT_UInt buffer_max ); Retrieve the ASCII name of a given glyph in a face. This only works for those faces where FT_HAS_GLYPH_NAMES returns true.","title":"FT_Get_Glyph_Name"},{"location":"ft2-information_retrieval.html#ft_get_postscript_name","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( const char * ) FT_Get_Postscript_Name ( FT_Face face ); Retrieve the ASCII PostScript name of a given face, if available. This only works with PostScript, TrueType, and OpenType fonts.","title":"FT_Get_Postscript_Name"},{"location":"ft2-information_retrieval.html#ft_get_fstype_flags","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_UShort ) FT_Get_FSType_Flags ( FT_Face face ); Return the fsType flags for a font.","title":"FT_Get_FSType_Flags"},{"location":"ft2-information_retrieval.html#ft_fstype_xxx","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000 # define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002 # define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004 # define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008 # define FT_FSTYPE_NO_SUBSETTING 0x0100 # define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200 A list of bit flags used in the fsType field of the OS/2 table in a TrueType or OpenType font and the FSType entry in a PostScript font. These bit flags are returned by FT_Get_FSType_Flags ; they inform client applications of embedding and subsetting restrictions associated with a font. See https://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/FontPolicies.pdf for more details.","title":"FT_FSTYPE_XXX"},{"location":"ft2-information_retrieval.html#ft_get_subglyph_info","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Get_SubGlyph_Info ( FT_GlyphSlot glyph, FT_UInt sub_index, FT_Int *p_index, FT_UInt *p_flags, FT_Int *p_arg1, FT_Int *p_arg2, FT_Matrix *p_transform ); Retrieve a description of a given subglyph. Only use it if glyph->format is FT_GLYPH_FORMAT_COMPOSITE ; an error is returned otherwise.","title":"FT_Get_SubGlyph_Info"},{"location":"ft2-information_retrieval.html#ft_subglyph_flag_xxx","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1 # define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2 # define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4 # define FT_SUBGLYPH_FLAG_SCALE 8 # define FT_SUBGLYPH_FLAG_XY_SCALE 0x40 # define FT_SUBGLYPH_FLAG_2X2 0x80 # define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200 A list of constants describing subglyphs. Please refer to the \u2018glyf\u2019 table description in the OpenType specification for the meaning of the various flags (which get synthesized for non-OpenType subglyphs). https://docs.microsoft.com/en-us/typography/opentype/spec/glyf#composite-glyph-description","title":"FT_SUBGLYPH_FLAG_XXX"},{"location":"ft2-layer_management.html","text":"FreeType \u00bb Docs \u00bb Extended API \u00bb Glyph Layer Management Glyph Layer Management \u00b6 Synopsis \u00b6 The functions described here allow access of colored glyph layer data in OpenType's \u2018COLR\u2019 tables. FT_LayerIterator \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_LayerIterator_ { FT_UInt num_layers; FT_UInt layer; FT_Byte * p; } FT_LayerIterator ; This iterator object is needed for FT_Get_Color_Glyph_Layer . fields num_layers The number of glyph layers for the requested glyph index. Will be set by FT_Get_Color_Glyph_Layer . layer The current layer. Will be set by FT_Get_Color_Glyph_Layer . p An opaque pointer into \u2018COLR\u2019 table data. The caller must set this to NULL before the first call of FT_Get_Color_Glyph_Layer . FT_Get_Color_Glyph_Layer \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Color_Glyph_Layer ( FT_Face face, FT_UInt base_glyph, FT_UInt *aglyph_index, FT_UInt *acolor_index, FT_LayerIterator * iterator ); This is an interface to the \u2018COLR\u2019 table in OpenType fonts to iteratively retrieve the colored glyph layers associated with the current glyph slot. https://docs.microsoft.com/en-us/typography/opentype/spec/colr The glyph layer data for a given glyph index, if present, provides an alternative, multi-color glyph representation: Instead of rendering the outline or bitmap with the given glyph index, glyphs with the indices and colors returned by this function are rendered layer by layer. The returned elements are ordered in the z direction from bottom to top; the 'n'th element should be rendered with the associated palette color and blended on top of the already rendered layers (elements 0, 1, \u2026, n-1). input face A handle to the parent face object. base_glyph The glyph index the colored glyph layers are associated with. inout iterator An FT_LayerIterator object. For the first call you should set iterator->p to NULL . For all following calls, simply use the same object again. output aglyph_index The glyph index of the current layer. acolor_index The color index into the font face's color palette of the current layer. The value 0xFFFF is special; it doesn't reference a palette entry but indicates that the text foreground color should be used instead (to be set up by the application outside of FreeType). The color palette can be retrieved with FT_Palette_Select . return Value 1 if everything is OK. If there are no more layers (or if there are no layers at all), value 0 gets returned. In case of an error, value 0 is returned also. note This function is necessary if you want to handle glyph layers by yourself. In particular, functions that operate with FT_GlyphRec objects (like FT_Get_Glyph or FT_Glyph_To_Bitmap ) don't have access to this information. Note that FT_Render_Glyph is able to handle colored glyph layers automatically if the FT_LOAD_COLOR flag is passed to a previous call to FT_Load_Glyph . [This is an experimental feature.] example FT_Color* palette; FT_LayerIterator iterator; FT_Bool have_layers; FT_UInt layer_glyph_index; FT_UInt layer_color_index; error = FT_Palette_Select( face, palette_index, &palette ); if ( error ) palette = NULL; iterator.p = NULL; have_layers = FT_Get_Color_Glyph_Layer( face, glyph_index, &layer_glyph_index, &layer_color_index, &iterator ); if ( palette && have_layers ) { do { FT_Color layer_color; if ( layer_color_index == 0xFFFF ) layer_color = text_foreground_color; else layer_color = palette[layer_color_index]; // Load and render glyph `layer_glyph_index', then // blend resulting pixmap (using color `layer_color') // with previously created pixmaps. } while ( FT_Get_Color_Glyph_Layer( face, glyph_index, &layer_glyph_index, &layer_color_index, &iterator ) ); } since 2.10 FT_PaintFormat \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef enum FT_PaintFormat_ { FT_COLR_PAINTFORMAT_COLR_LAYERS = 1, FT_COLR_PAINTFORMAT_SOLID = 2, FT_COLR_PAINTFORMAT_LINEAR_GRADIENT = 4, FT_COLR_PAINTFORMAT_RADIAL_GRADIENT = 6, FT_COLR_PAINTFORMAT_SWEEP_GRADIENT = 8, FT_COLR_PAINTFORMAT_GLYPH = 10, FT_COLR_PAINTFORMAT_COLR_GLYPH = 11, FT_COLR_PAINTFORMAT_TRANSFORM = 12, FT_COLR_PAINTFORMAT_TRANSLATE = 14, FT_COLR_PAINTFORMAT_SCALE = 16, FT_COLR_PAINTFORMAT_ROTATE = 24, FT_COLR_PAINTFORMAT_SKEW = 28, FT_COLR_PAINTFORMAT_COMPOSITE = 32, FT_COLR_PAINT_FORMAT_MAX = 33, FT_COLR_PAINTFORMAT_UNSUPPORTED = 255 } FT_PaintFormat ; Enumeration describing the different paint format types of the v1 extensions to the \u2018COLR\u2019 table, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. The enumeration values loosely correspond with the format numbers of the specification: FreeType always returns a fully specified \u2018Paint\u2019 structure for the \u2018Transform\u2019, \u2018Translate\u2019, \u2018Scale\u2019, \u2018Rotate\u2019, and \u2018Skew\u2019 table types even though the specification has different formats depending on whether or not a center is specified, whether the scale is uniform in x and y direction or not, etc. Also, only non-variable format identifiers are listed in this enumeration; as soon as support for variable \u2018COLR\u2019 v1 fonts is implemented, interpolation is performed dependent on axis coordinates, which are configured on the FT_Face through FT_Set_Var_Design_Coordinates . This implies that always static, readily interpolated values are returned in the \u2018Paint\u2019 structures. since 2.13 FT_ColorStopIterator \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ColorStopIterator_ { FT_UInt num_color_stops; FT_UInt current_color_stop; FT_Byte * p; FT_Bool read_variable; } FT_ColorStopIterator ; This iterator object is needed for FT_Get_Colorline_Stops . It keeps state while iterating over the stops of an FT_ColorLine , representing the ColorLine struct of the v1 extensions to \u2018COLR\u2019, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. Do not manually modify fields of this iterator. fields num_color_stops The number of color stops for the requested glyph index. Set by FT_Get_Paint . current_color_stop The current color stop. Set by FT_Get_Colorline_Stops . p An opaque pointer into \u2018COLR\u2019 table data. Set by FT_Get_Paint . Updated by FT_Get_Colorline_Stops . read_variable A boolean keeping track of whether variable color lines are to be read. Set by FT_Get_Paint . since 2.13 FT_ColorIndex \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ColorIndex_ { FT_UInt16 palette_index; FT_F2Dot14 alpha; } FT_ColorIndex ; A structure representing a ColorIndex value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. fields palette_index The palette index into a \u2018CPAL\u2019 palette. alpha Alpha transparency value multiplied with the value from \u2018CPAL\u2019. since 2.13 FT_ColorStop \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ColorStop_ { FT_Fixed stop_offset; FT_ColorIndex color; } FT_ColorStop ; A structure representing a ColorStop value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. fields stop_offset The stop offset along the gradient, expressed as a 16.16 fixed-point coordinate. color The color information for this stop, see FT_ColorIndex . since 2.13 FT_PaintExtend \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef enum FT_PaintExtend_ { FT_COLR_PAINT_EXTEND_PAD = 0, FT_COLR_PAINT_EXTEND_REPEAT = 1, FT_COLR_PAINT_EXTEND_REFLECT = 2 } FT_PaintExtend ; An enumeration representing the \u2018Extend\u2019 mode of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. It describes how the gradient fill continues at the other boundaries. since 2.13 FT_ColorLine \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ColorLine_ { FT_PaintExtend extend; FT_ColorStopIterator color_stop_iterator; } FT_ColorLine ; A structure representing a ColorLine value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. It describes a list of color stops along the defined gradient. fields extend The extend mode at the outer boundaries, see FT_PaintExtend . color_stop_iterator The FT_ColorStopIterator used to enumerate and retrieve the actual FT_ColorStop 's. since 2.13 FT_Affine23 \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_Affine_23_ { FT_Fixed xx, xy, dx; FT_Fixed yx, yy, dy; } FT_Affine23 ; A structure used to store a 2x3 matrix. Coefficients are in 16.16 fixed-point format. The computation performed is x' = x*xx + y*xy + dx y' = x*yx + y*yy + dy fields xx Matrix coefficient. xy Matrix coefficient. dx x translation. yx Matrix coefficient. yy Matrix coefficient. dy y translation. since 2.13 FT_Composite_Mode \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef enum FT_Composite_Mode_ { FT_COLR_COMPOSITE_CLEAR = 0, FT_COLR_COMPOSITE_SRC = 1, FT_COLR_COMPOSITE_DEST = 2, FT_COLR_COMPOSITE_SRC_OVER = 3, FT_COLR_COMPOSITE_DEST_OVER = 4, FT_COLR_COMPOSITE_SRC_IN = 5, FT_COLR_COMPOSITE_DEST_IN = 6, FT_COLR_COMPOSITE_SRC_OUT = 7, FT_COLR_COMPOSITE_DEST_OUT = 8, FT_COLR_COMPOSITE_SRC_ATOP = 9, FT_COLR_COMPOSITE_DEST_ATOP = 10, FT_COLR_COMPOSITE_XOR = 11, FT_COLR_COMPOSITE_PLUS = 12, FT_COLR_COMPOSITE_SCREEN = 13, FT_COLR_COMPOSITE_OVERLAY = 14, FT_COLR_COMPOSITE_DARKEN = 15, FT_COLR_COMPOSITE_LIGHTEN = 16, FT_COLR_COMPOSITE_COLOR_DODGE = 17, FT_COLR_COMPOSITE_COLOR_BURN = 18, FT_COLR_COMPOSITE_HARD_LIGHT = 19, FT_COLR_COMPOSITE_SOFT_LIGHT = 20, FT_COLR_COMPOSITE_DIFFERENCE = 21, FT_COLR_COMPOSITE_EXCLUSION = 22, FT_COLR_COMPOSITE_MULTIPLY = 23, FT_COLR_COMPOSITE_HSL_HUE = 24, FT_COLR_COMPOSITE_HSL_SATURATION = 25, FT_COLR_COMPOSITE_HSL_COLOR = 26, FT_COLR_COMPOSITE_HSL_LUMINOSITY = 27, FT_COLR_COMPOSITE_MAX = 28 } FT_Composite_Mode ; An enumeration listing the \u2018COLR\u2019 v1 composite modes used in FT_PaintComposite . For more details on each paint mode, see \u2018 https://www.w3.org/TR/compositing-1/#porterduffcompositingoperators \u2019. since 2.13 FT_OpaquePaint \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_Opaque_Paint_ { FT_Byte * p; FT_Bool insert_root_transform; } FT_OpaquePaint ; A structure representing an offset to a Paint value stored in any of the paint tables of a \u2018COLR\u2019 v1 font. Compare Offset<24> there. When \u2018COLR\u2019 v1 paint tables represented by FreeType objects such as FT_PaintColrLayers , FT_PaintComposite , or FT_PaintTransform reference downstream nested paint tables, we do not immediately retrieve them but encapsulate their location in this type. Use FT_Get_Paint to retrieve the actual FT_COLR_Paint object that describes the details of the respective paint table. fields p An internal offset to a Paint table, needs to be set to NULL before passing this struct as an argument to FT_Get_Paint . insert_root_transform An internal boolean to track whether an initial root transform is to be provided. Do not set this value. since 2.13 FT_PaintColrLayers \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintColrLayers_ { FT_LayerIterator layer_iterator; } FT_PaintColrLayers ; A structure representing a PaintColrLayers table of a \u2018COLR\u2019 v1 font. This table describes a set of layers that are to be composited with composite mode FT_COLR_COMPOSITE_SRC_OVER . The return value of this function is an FT_LayerIterator initialized so that it can be used with FT_Get_Paint_Layers to retrieve the FT_OpaquePaint objects as references to each layer. fields layer_iterator The layer iterator that describes the layers of this paint. since 2.13 FT_PaintSolid \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintSolid_ { FT_ColorIndex color; } FT_PaintSolid ; A structure representing a PaintSolid value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. Using a PaintSolid value means that the glyph layer filled with this paint is solid-colored and does not contain a gradient. fields color The color information for this solid paint, see FT_ColorIndex . since 2.13 FT_PaintLinearGradient \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintLinearGradient_ { FT_ColorLine colorline; /* TODO: Potentially expose those as x0, y0 etc. */ FT_Vector p0; FT_Vector p1; FT_Vector p2; } FT_PaintLinearGradient ; A structure representing a PaintLinearGradient value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. The glyph layer filled with this paint is drawn filled with a linear gradient. fields colorline The FT_ColorLine information for this paint, i.e., the list of color stops along the gradient. p0 The starting point of the gradient definition in font units represented as a 16.16 fixed-point FT_Vector . p1 The end point of the gradient definition in font units represented as a 16.16 fixed-point FT_Vector . p2 Optional point p2 to rotate the gradient in font units represented as a 16.16 fixed-point FT_Vector . Otherwise equal to p0. since 2.13 FT_PaintRadialGradient \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintRadialGradient_ { FT_ColorLine colorline; FT_Vector c0; FT_Pos r0; FT_Vector c1; FT_Pos r1; } FT_PaintRadialGradient ; A structure representing a PaintRadialGradient value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. The glyph layer filled with this paint is drawn filled with a radial gradient. fields colorline The FT_ColorLine information for this paint, i.e., the list of color stops along the gradient. c0 The center of the starting point of the radial gradient in font units represented as a 16.16 fixed-point FT_Vector . r0 The radius of the starting circle of the radial gradient in font units represented as a 16.16 fixed-point value. c1 The center of the end point of the radial gradient in font units represented as a 16.16 fixed-point FT_Vector . r1 The radius of the end circle of the radial gradient in font units represented as a 16.16 fixed-point value. since 2.13 FT_PaintSweepGradient \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintSweepGradient_ { FT_ColorLine colorline; FT_Vector center; FT_Fixed start_angle; FT_Fixed end_angle; } FT_PaintSweepGradient ; A structure representing a PaintSweepGradient value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. The glyph layer filled with this paint is drawn filled with a sweep gradient from start_angle to end_angle . fields colorline The FT_ColorLine information for this paint, i.e., the list of color stops along the gradient. center The center of the sweep gradient in font units represented as a vector of 16.16 fixed-point values. start_angle The start angle of the sweep gradient in 16.16 fixed-point format specifying degrees divided by 180.0 (as in the spec). Multiply by 180.0f to receive degrees value. Values are given counter-clockwise, starting from the (positive) y axis. end_angle The end angle of the sweep gradient in 16.16 fixed-point format specifying degrees divided by 180.0 (as in the spec). Multiply by 180.0f to receive degrees value. Values are given counter-clockwise, starting from the (positive) y axis. since 2.13 FT_PaintGlyph \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintGlyph_ { FT_OpaquePaint paint; FT_UInt glyphID; } FT_PaintGlyph ; A structure representing a \u2018COLR\u2019 v1 PaintGlyph paint table. fields paint An opaque paint object pointing to a Paint table that serves as the fill for the glyph ID. glyphID The glyph ID from the \u2018glyf\u2019 table, which serves as the contour information that is filled with paint. since 2.13 FT_PaintColrGlyph \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintColrGlyph_ { FT_UInt glyphID; } FT_PaintColrGlyph ; A structure representing a \u2018COLR\u2019 v1 PaintColorGlyph paint table. fields glyphID The glyph ID from the BaseGlyphV1List table that is drawn for this paint. since 2.13 FT_PaintTransform \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintTransform_ { FT_OpaquePaint paint; FT_Affine23 affine; } FT_PaintTransform ; A structure representing a \u2018COLR\u2019 v1 PaintTransform paint table. fields paint An opaque paint that is subject to being transformed. affine A 2x3 transformation matrix in FT_Affine23 format containing 16.16 fixed-point values. since 2.13 FT_PaintTranslate \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintTranslate_ { FT_OpaquePaint paint; FT_Fixed dx; FT_Fixed dy; } FT_PaintTranslate ; A structure representing a \u2018COLR\u2019 v1 PaintTranslate paint table. Used for translating downstream paints by a given x and y delta. fields paint An FT_OpaquePaint object referencing the paint that is to be rotated. dx Translation in x direction in font units represented as a 16.16 fixed-point value. dy Translation in y direction in font units represented as a 16.16 fixed-point value. since 2.13 FT_PaintScale \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintScale_ { FT_OpaquePaint paint; FT_Fixed scale_x; FT_Fixed scale_y; FT_Fixed center_x; FT_Fixed center_y; } FT_PaintScale ; A structure representing all of the \u2018COLR\u2019 v1 \u2018PaintScale*\u2019 paint tables. Used for scaling downstream paints by a given x and y scale, with a given center. This structure is used for all \u2018PaintScale*\u2019 types that are part of specification; fields of this structure are filled accordingly. If there is a center, the center values are set, otherwise they are set to the zero coordinate. If the source font file has \u2018PaintScaleUniform*\u2019 set, the scale values are set accordingly to the same value. fields paint An FT_OpaquePaint object referencing the paint that is to be scaled. scale_x Scale factor in x direction represented as a 16.16 fixed-point value. scale_y Scale factor in y direction represented as a 16.16 fixed-point value. center_x x coordinate of center point to scale from represented as a 16.16 fixed-point value. center_y y coordinate of center point to scale from represented as a 16.16 fixed-point value. since 2.13 FT_PaintRotate \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintRotate_ { FT_OpaquePaint paint; FT_Fixed angle; FT_Fixed center_x; FT_Fixed center_y; } FT_PaintRotate ; A structure representing a \u2018COLR\u2019 v1 PaintRotate paint table. Used for rotating downstream paints with a given center and angle. fields paint An FT_OpaquePaint object referencing the paint that is to be rotated. angle The rotation angle that is to be applied in degrees divided by 180.0 (as in the spec) represented as a 16.16 fixed-point value. Multiply by 180.0f to receive degrees value. center_x The x coordinate of the pivot point of the rotation in font units represented as a 16.16 fixed-point value. center_y The y coordinate of the pivot point of the rotation in font units represented as a 16.16 fixed-point value. since 2.13 FT_PaintSkew \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintSkew_ { FT_OpaquePaint paint; FT_Fixed x_skew_angle; FT_Fixed y_skew_angle; FT_Fixed center_x; FT_Fixed center_y; } FT_PaintSkew ; A structure representing a \u2018COLR\u2019 v1 PaintSkew paint table. Used for skewing or shearing downstream paints by a given center and angle. fields paint An FT_OpaquePaint object referencing the paint that is to be skewed. x_skew_angle The skewing angle in x direction in degrees divided by 180.0 (as in the spec) represented as a 16.16 fixed-point value. Multiply by 180.0f to receive degrees. y_skew_angle The skewing angle in y direction in degrees divided by 180.0 (as in the spec) represented as a 16.16 fixed-point value. Multiply by 180.0f to receive degrees. center_x The x coordinate of the pivot point of the skew in font units represented as a 16.16 fixed-point value. center_y The y coordinate of the pivot point of the skew in font units represented as a 16.16 fixed-point value. since 2.13 FT_PaintComposite \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintComposite_ { FT_OpaquePaint source_paint; FT_Composite_Mode composite_mode; FT_OpaquePaint backdrop_paint; } FT_PaintComposite ; A structure representing a \u2018COLR\u2019 v1 PaintComposite paint table. Used for compositing two paints in a \u2018COLR\u2019 v1 directed acyclic graph. fields source_paint An FT_OpaquePaint object referencing the source that is to be composited. composite_mode An FT_Composite_Mode enum value determining the composition operation. backdrop_paint An FT_OpaquePaint object referencing the backdrop paint that source_paint is composited onto. since 2.13 FT_COLR_Paint \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_COLR_Paint_ { FT_PaintFormat format; union { FT_PaintColrLayers colr_layers; FT_PaintGlyph glyph; FT_PaintSolid solid; FT_PaintLinearGradient linear_gradient; FT_PaintRadialGradient radial_gradient; FT_PaintSweepGradient sweep_gradient; FT_PaintTransform transform; FT_PaintTranslate translate; FT_PaintScale scale; FT_PaintRotate rotate; FT_PaintSkew skew; FT_PaintComposite composite; FT_PaintColrGlyph colr_glyph; } u; } FT_COLR_Paint ; A union object representing format and details of a paint table of a \u2018COLR\u2019 v1 font, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. Use FT_Get_Paint to retrieve a FT_COLR_Paint for an FT_OpaquePaint object. fields format The gradient format for this Paint structure. u Union of all paint table types: FT_PaintColrLayers FT_PaintGlyph FT_PaintSolid FT_PaintLinearGradient FT_PaintRadialGradient FT_PaintSweepGradient FT_PaintTransform FT_PaintTranslate FT_PaintRotate FT_PaintSkew FT_PaintComposite * FT_PaintColrGlyph since 2.13 FT_Color_Root_Transform \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef enum FT_Color_Root_Transform_ { FT_COLOR_INCLUDE_ROOT_TRANSFORM , FT_COLOR_NO_ROOT_TRANSFORM , FT_COLOR_ROOT_TRANSFORM_MAX } FT_Color_Root_Transform ; An enumeration to specify whether FT_Get_Color_Glyph_Paint is to return a root transform to configure the client's graphics context matrix. values FT_COLOR_INCLUDE_ROOT_TRANSFORM Do include the root transform as the initial FT_COLR_Paint object. FT_COLOR_NO_ROOT_TRANSFORM Do not output an initial root transform. since 2.13 FT_ClipBox \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ClipBox_ { FT_Vector bottom_left; FT_Vector top_left; FT_Vector top_right; FT_Vector bottom_right; } FT_ClipBox ; A structure representing a \u2018COLR\u2019 v1 \u2018ClipBox\u2019 table. \u2018COLR\u2019 v1 glyphs may optionally define a clip box for aiding allocation or defining a maximum drawable region. Use FT_Get_Color_Glyph_ClipBox to retrieve it. fields bottom_left The bottom left corner of the clip box as an FT_Vector with fixed-point coordinates in 26.6 format. top_left The top left corner of the clip box as an FT_Vector with fixed-point coordinates in 26.6 format. top_right The top right corner of the clip box as an FT_Vector with fixed-point coordinates in 26.6 format. bottom_right The bottom right corner of the clip box as an FT_Vector with fixed-point coordinates in 26.6 format. since 2.13 FT_Get_Color_Glyph_Paint \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Color_Glyph_Paint ( FT_Face face, FT_UInt base_glyph, FT_Color_Root_Transform root_transform, FT_OpaquePaint * paint ); This is the starting point and interface to color gradient information in a \u2018COLR\u2019 v1 table in OpenType fonts to recursively retrieve the paint tables for the directed acyclic graph of a colored glyph, given a glyph ID. https://github.com/googlefonts/colr-gradients-spec In a \u2018COLR\u2019 v1 font, each color glyph defines a directed acyclic graph of nested paint tables, such as PaintGlyph , PaintSolid , PaintLinearGradient , PaintRadialGradient , and so on. Using this function and specifying a glyph ID, one retrieves the root paint table for this glyph ID. This function allows control whether an initial root transform is returned to configure scaling, transform, and translation correctly on the client's graphics context. The initial root transform is computed and returned according to the values configured for FT_Size and FT_Set_Transform on the FT_Face object, see below for details of the root_transform parameter. This has implications for a client \u2018COLR\u2019 v1 implementation: When this function returns an initially computed root transform, at the time of executing the FT_PaintGlyph operation, the contours should be retrieved using FT_Load_Glyph at unscaled, untransformed size. This is because the root transform applied to the graphics context will take care of correct scaling. Alternatively, to allow hinting of contours, at the time of executing FT_Load_Glyph , the current graphics context transformation matrix can be decomposed into a scaling matrix and a remainder, and FT_Load_Glyph can be used to retrieve the contours at scaled size. Care must then be taken to blit or clip to the graphics context with taking this remainder transformation into account. input face A handle to the parent face object. base_glyph The glyph index for which to retrieve the root paint table. root_transform Specifies whether an initially computed root is returned by the FT_PaintTransform operation to account for the activated size (see FT_Activate_Size ) and the configured transform and translate (see FT_Set_Transform ). This root transform is returned before nodes of the glyph graph of the font are returned. Subsequent FT_COLR_Paint structures contain unscaled and untransformed values. The inserted root transform enables the client application to apply an initial transform to its graphics context. When executing subsequent FT_COLR_Paint operations, values from FT_COLR_Paint operations will ultimately be correctly scaled because of the root transform applied to the graphics context. Use FT_COLOR_INCLUDE_ROOT_TRANSFORM to include the root transform, use FT_COLOR_NO_ROOT_TRANSFORM to not include it. The latter may be useful when traversing the \u2018COLR\u2019 v1 glyph graph and reaching a FT_PaintColrGlyph . When recursing into FT_PaintColrGlyph and painting that inline, no additional root transform is needed as it has already been applied to the graphics context at the beginning of drawing this glyph. output paint The FT_OpaquePaint object that references the actual paint table. The respective actual FT_COLR_Paint object is retrieved via FT_Get_Paint . return Value 1 if everything is OK. If no color glyph is found, or the root paint could not be retrieved, value 0 gets returned. In case of an error, value 0 is returned also. since 2.13 FT_Get_Color_Glyph_ClipBox \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Color_Glyph_ClipBox ( FT_Face face, FT_UInt base_glyph, FT_ClipBox * clip_box ); Search for a \u2018COLR\u2019 v1 clip box for the specified base_glyph and fill the clip_box parameter with the \u2018COLR\u2019 v1 \u2018ClipBox\u2019 information if one is found. input face A handle to the parent face object. base_glyph The glyph index for which to retrieve the clip box. output clip_box The clip box for the requested base_glyph if one is found. The clip box is computed taking scale and transformations configured on the FT_Face into account. FT_ClipBox contains FT_Vector values in 26.6 format. return Value 1 if a clip box is found. If no clip box is found or an error occured, value 0 is returned. note To retrieve the clip box in font units, reset scale to units-per-em and remove transforms configured using FT_Set_Transform . since 2.13 FT_Get_Paint_Layers \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Paint_Layers ( FT_Face face, FT_LayerIterator * iterator, FT_OpaquePaint * paint ); Access the layers of a PaintColrLayers table. If the root paint of a color glyph, or a nested paint of a \u2018COLR\u2019 glyph is a PaintColrLayers table, this function retrieves the layers of the PaintColrLayers table. The FT_PaintColrLayers object contains an FT_LayerIterator , which is used here to iterate over the layers. Each layer is returned as an FT_OpaquePaint object, which then can be used with FT_Get_Paint to retrieve the actual paint object. input face A handle to the parent face object. inout iterator The FT_LayerIterator from an FT_PaintColrLayers object, for which the layers are to be retrieved. The internal state of the iterator is incremented after one call to this function for retrieving one layer. output paint The FT_OpaquePaint object that references the actual paint table. The respective actual FT_COLR_Paint object is retrieved via FT_Get_Paint . return Value 1 if everything is OK. Value 0 gets returned when the paint object can not be retrieved or any other error occurs. since 2.13 FT_Get_Colorline_Stops \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Colorline_Stops ( FT_Face face, FT_ColorStop * color_stop, FT_ColorStopIterator * iterator ); This is an interface to color gradient information in a \u2018COLR\u2019 v1 table in OpenType fonts to iteratively retrieve the gradient and solid fill information for colored glyph layers for a specified glyph ID. https://github.com/googlefonts/colr-gradients-spec input face A handle to the parent face object. inout iterator The retrieved FT_ColorStopIterator , configured on an FT_ColorLine , which in turn got retrieved via paint information in FT_PaintLinearGradient or FT_PaintRadialGradient . output color_stop Color index and alpha value for the retrieved color stop. return Value 1 if everything is OK. If there are no more color stops, value 0 gets returned. In case of an error, value 0 is returned also. since 2.13 FT_Get_Paint \u00b6 Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Paint ( FT_Face face, FT_OpaquePaint opaque_paint, FT_COLR_Paint * paint ); Access the details of a paint using an FT_OpaquePaint opaque paint object, which internally stores the offset to the respective Paint object in the \u2018COLR\u2019 table. input face A handle to the parent face object. opaque_paint The opaque paint object for which the underlying FT_COLR_Paint data is to be retrieved. output paint The specific FT_COLR_Paint object containing information coming from one of the font's Paint* tables. return Value 1 if everything is OK. Value 0 if no details can be found for this paint or any other error occured. since 2.13","title":"Glyph Layer Management"},{"location":"ft2-layer_management.html#glyph-layer-management","text":"","title":"Glyph Layer Management"},{"location":"ft2-layer_management.html#synopsis","text":"The functions described here allow access of colored glyph layer data in OpenType's \u2018COLR\u2019 tables.","title":"Synopsis"},{"location":"ft2-layer_management.html#ft_layeriterator","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_LayerIterator_ { FT_UInt num_layers; FT_UInt layer; FT_Byte * p; } FT_LayerIterator ; This iterator object is needed for FT_Get_Color_Glyph_Layer .","title":"FT_LayerIterator"},{"location":"ft2-layer_management.html#ft_get_color_glyph_layer","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Color_Glyph_Layer ( FT_Face face, FT_UInt base_glyph, FT_UInt *aglyph_index, FT_UInt *acolor_index, FT_LayerIterator * iterator ); This is an interface to the \u2018COLR\u2019 table in OpenType fonts to iteratively retrieve the colored glyph layers associated with the current glyph slot. https://docs.microsoft.com/en-us/typography/opentype/spec/colr The glyph layer data for a given glyph index, if present, provides an alternative, multi-color glyph representation: Instead of rendering the outline or bitmap with the given glyph index, glyphs with the indices and colors returned by this function are rendered layer by layer. The returned elements are ordered in the z direction from bottom to top; the 'n'th element should be rendered with the associated palette color and blended on top of the already rendered layers (elements 0, 1, \u2026, n-1).","title":"FT_Get_Color_Glyph_Layer"},{"location":"ft2-layer_management.html#ft_paintformat","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef enum FT_PaintFormat_ { FT_COLR_PAINTFORMAT_COLR_LAYERS = 1, FT_COLR_PAINTFORMAT_SOLID = 2, FT_COLR_PAINTFORMAT_LINEAR_GRADIENT = 4, FT_COLR_PAINTFORMAT_RADIAL_GRADIENT = 6, FT_COLR_PAINTFORMAT_SWEEP_GRADIENT = 8, FT_COLR_PAINTFORMAT_GLYPH = 10, FT_COLR_PAINTFORMAT_COLR_GLYPH = 11, FT_COLR_PAINTFORMAT_TRANSFORM = 12, FT_COLR_PAINTFORMAT_TRANSLATE = 14, FT_COLR_PAINTFORMAT_SCALE = 16, FT_COLR_PAINTFORMAT_ROTATE = 24, FT_COLR_PAINTFORMAT_SKEW = 28, FT_COLR_PAINTFORMAT_COMPOSITE = 32, FT_COLR_PAINT_FORMAT_MAX = 33, FT_COLR_PAINTFORMAT_UNSUPPORTED = 255 } FT_PaintFormat ; Enumeration describing the different paint format types of the v1 extensions to the \u2018COLR\u2019 table, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. The enumeration values loosely correspond with the format numbers of the specification: FreeType always returns a fully specified \u2018Paint\u2019 structure for the \u2018Transform\u2019, \u2018Translate\u2019, \u2018Scale\u2019, \u2018Rotate\u2019, and \u2018Skew\u2019 table types even though the specification has different formats depending on whether or not a center is specified, whether the scale is uniform in x and y direction or not, etc. Also, only non-variable format identifiers are listed in this enumeration; as soon as support for variable \u2018COLR\u2019 v1 fonts is implemented, interpolation is performed dependent on axis coordinates, which are configured on the FT_Face through FT_Set_Var_Design_Coordinates . This implies that always static, readily interpolated values are returned in the \u2018Paint\u2019 structures.","title":"FT_PaintFormat"},{"location":"ft2-layer_management.html#ft_colorstopiterator","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ColorStopIterator_ { FT_UInt num_color_stops; FT_UInt current_color_stop; FT_Byte * p; FT_Bool read_variable; } FT_ColorStopIterator ; This iterator object is needed for FT_Get_Colorline_Stops . It keeps state while iterating over the stops of an FT_ColorLine , representing the ColorLine struct of the v1 extensions to \u2018COLR\u2019, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. Do not manually modify fields of this iterator.","title":"FT_ColorStopIterator"},{"location":"ft2-layer_management.html#ft_colorindex","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ColorIndex_ { FT_UInt16 palette_index; FT_F2Dot14 alpha; } FT_ColorIndex ; A structure representing a ColorIndex value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019.","title":"FT_ColorIndex"},{"location":"ft2-layer_management.html#ft_colorstop","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ColorStop_ { FT_Fixed stop_offset; FT_ColorIndex color; } FT_ColorStop ; A structure representing a ColorStop value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019.","title":"FT_ColorStop"},{"location":"ft2-layer_management.html#ft_paintextend","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef enum FT_PaintExtend_ { FT_COLR_PAINT_EXTEND_PAD = 0, FT_COLR_PAINT_EXTEND_REPEAT = 1, FT_COLR_PAINT_EXTEND_REFLECT = 2 } FT_PaintExtend ; An enumeration representing the \u2018Extend\u2019 mode of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. It describes how the gradient fill continues at the other boundaries.","title":"FT_PaintExtend"},{"location":"ft2-layer_management.html#ft_colorline","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ColorLine_ { FT_PaintExtend extend; FT_ColorStopIterator color_stop_iterator; } FT_ColorLine ; A structure representing a ColorLine value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. It describes a list of color stops along the defined gradient.","title":"FT_ColorLine"},{"location":"ft2-layer_management.html#ft_affine23","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_Affine_23_ { FT_Fixed xx, xy, dx; FT_Fixed yx, yy, dy; } FT_Affine23 ; A structure used to store a 2x3 matrix. Coefficients are in 16.16 fixed-point format. The computation performed is x' = x*xx + y*xy + dx y' = x*yx + y*yy + dy","title":"FT_Affine23"},{"location":"ft2-layer_management.html#ft_composite_mode","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef enum FT_Composite_Mode_ { FT_COLR_COMPOSITE_CLEAR = 0, FT_COLR_COMPOSITE_SRC = 1, FT_COLR_COMPOSITE_DEST = 2, FT_COLR_COMPOSITE_SRC_OVER = 3, FT_COLR_COMPOSITE_DEST_OVER = 4, FT_COLR_COMPOSITE_SRC_IN = 5, FT_COLR_COMPOSITE_DEST_IN = 6, FT_COLR_COMPOSITE_SRC_OUT = 7, FT_COLR_COMPOSITE_DEST_OUT = 8, FT_COLR_COMPOSITE_SRC_ATOP = 9, FT_COLR_COMPOSITE_DEST_ATOP = 10, FT_COLR_COMPOSITE_XOR = 11, FT_COLR_COMPOSITE_PLUS = 12, FT_COLR_COMPOSITE_SCREEN = 13, FT_COLR_COMPOSITE_OVERLAY = 14, FT_COLR_COMPOSITE_DARKEN = 15, FT_COLR_COMPOSITE_LIGHTEN = 16, FT_COLR_COMPOSITE_COLOR_DODGE = 17, FT_COLR_COMPOSITE_COLOR_BURN = 18, FT_COLR_COMPOSITE_HARD_LIGHT = 19, FT_COLR_COMPOSITE_SOFT_LIGHT = 20, FT_COLR_COMPOSITE_DIFFERENCE = 21, FT_COLR_COMPOSITE_EXCLUSION = 22, FT_COLR_COMPOSITE_MULTIPLY = 23, FT_COLR_COMPOSITE_HSL_HUE = 24, FT_COLR_COMPOSITE_HSL_SATURATION = 25, FT_COLR_COMPOSITE_HSL_COLOR = 26, FT_COLR_COMPOSITE_HSL_LUMINOSITY = 27, FT_COLR_COMPOSITE_MAX = 28 } FT_Composite_Mode ; An enumeration listing the \u2018COLR\u2019 v1 composite modes used in FT_PaintComposite . For more details on each paint mode, see \u2018 https://www.w3.org/TR/compositing-1/#porterduffcompositingoperators \u2019.","title":"FT_Composite_Mode"},{"location":"ft2-layer_management.html#ft_opaquepaint","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_Opaque_Paint_ { FT_Byte * p; FT_Bool insert_root_transform; } FT_OpaquePaint ; A structure representing an offset to a Paint value stored in any of the paint tables of a \u2018COLR\u2019 v1 font. Compare Offset<24> there. When \u2018COLR\u2019 v1 paint tables represented by FreeType objects such as FT_PaintColrLayers , FT_PaintComposite , or FT_PaintTransform reference downstream nested paint tables, we do not immediately retrieve them but encapsulate their location in this type. Use FT_Get_Paint to retrieve the actual FT_COLR_Paint object that describes the details of the respective paint table.","title":"FT_OpaquePaint"},{"location":"ft2-layer_management.html#ft_paintcolrlayers","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintColrLayers_ { FT_LayerIterator layer_iterator; } FT_PaintColrLayers ; A structure representing a PaintColrLayers table of a \u2018COLR\u2019 v1 font. This table describes a set of layers that are to be composited with composite mode FT_COLR_COMPOSITE_SRC_OVER . The return value of this function is an FT_LayerIterator initialized so that it can be used with FT_Get_Paint_Layers to retrieve the FT_OpaquePaint objects as references to each layer.","title":"FT_PaintColrLayers"},{"location":"ft2-layer_management.html#ft_paintsolid","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintSolid_ { FT_ColorIndex color; } FT_PaintSolid ; A structure representing a PaintSolid value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. Using a PaintSolid value means that the glyph layer filled with this paint is solid-colored and does not contain a gradient.","title":"FT_PaintSolid"},{"location":"ft2-layer_management.html#ft_paintlineargradient","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintLinearGradient_ { FT_ColorLine colorline; /* TODO: Potentially expose those as x0, y0 etc. */ FT_Vector p0; FT_Vector p1; FT_Vector p2; } FT_PaintLinearGradient ; A structure representing a PaintLinearGradient value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. The glyph layer filled with this paint is drawn filled with a linear gradient.","title":"FT_PaintLinearGradient"},{"location":"ft2-layer_management.html#ft_paintradialgradient","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintRadialGradient_ { FT_ColorLine colorline; FT_Vector c0; FT_Pos r0; FT_Vector c1; FT_Pos r1; } FT_PaintRadialGradient ; A structure representing a PaintRadialGradient value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. The glyph layer filled with this paint is drawn filled with a radial gradient.","title":"FT_PaintRadialGradient"},{"location":"ft2-layer_management.html#ft_paintsweepgradient","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintSweepGradient_ { FT_ColorLine colorline; FT_Vector center; FT_Fixed start_angle; FT_Fixed end_angle; } FT_PaintSweepGradient ; A structure representing a PaintSweepGradient value of the \u2018COLR\u2019 v1 extensions, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. The glyph layer filled with this paint is drawn filled with a sweep gradient from start_angle to end_angle .","title":"FT_PaintSweepGradient"},{"location":"ft2-layer_management.html#ft_paintglyph","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintGlyph_ { FT_OpaquePaint paint; FT_UInt glyphID; } FT_PaintGlyph ; A structure representing a \u2018COLR\u2019 v1 PaintGlyph paint table.","title":"FT_PaintGlyph"},{"location":"ft2-layer_management.html#ft_paintcolrglyph","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintColrGlyph_ { FT_UInt glyphID; } FT_PaintColrGlyph ; A structure representing a \u2018COLR\u2019 v1 PaintColorGlyph paint table.","title":"FT_PaintColrGlyph"},{"location":"ft2-layer_management.html#ft_painttransform","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintTransform_ { FT_OpaquePaint paint; FT_Affine23 affine; } FT_PaintTransform ; A structure representing a \u2018COLR\u2019 v1 PaintTransform paint table.","title":"FT_PaintTransform"},{"location":"ft2-layer_management.html#ft_painttranslate","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintTranslate_ { FT_OpaquePaint paint; FT_Fixed dx; FT_Fixed dy; } FT_PaintTranslate ; A structure representing a \u2018COLR\u2019 v1 PaintTranslate paint table. Used for translating downstream paints by a given x and y delta.","title":"FT_PaintTranslate"},{"location":"ft2-layer_management.html#ft_paintscale","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintScale_ { FT_OpaquePaint paint; FT_Fixed scale_x; FT_Fixed scale_y; FT_Fixed center_x; FT_Fixed center_y; } FT_PaintScale ; A structure representing all of the \u2018COLR\u2019 v1 \u2018PaintScale*\u2019 paint tables. Used for scaling downstream paints by a given x and y scale, with a given center. This structure is used for all \u2018PaintScale*\u2019 types that are part of specification; fields of this structure are filled accordingly. If there is a center, the center values are set, otherwise they are set to the zero coordinate. If the source font file has \u2018PaintScaleUniform*\u2019 set, the scale values are set accordingly to the same value.","title":"FT_PaintScale"},{"location":"ft2-layer_management.html#ft_paintrotate","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintRotate_ { FT_OpaquePaint paint; FT_Fixed angle; FT_Fixed center_x; FT_Fixed center_y; } FT_PaintRotate ; A structure representing a \u2018COLR\u2019 v1 PaintRotate paint table. Used for rotating downstream paints with a given center and angle.","title":"FT_PaintRotate"},{"location":"ft2-layer_management.html#ft_paintskew","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintSkew_ { FT_OpaquePaint paint; FT_Fixed x_skew_angle; FT_Fixed y_skew_angle; FT_Fixed center_x; FT_Fixed center_y; } FT_PaintSkew ; A structure representing a \u2018COLR\u2019 v1 PaintSkew paint table. Used for skewing or shearing downstream paints by a given center and angle.","title":"FT_PaintSkew"},{"location":"ft2-layer_management.html#ft_paintcomposite","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_PaintComposite_ { FT_OpaquePaint source_paint; FT_Composite_Mode composite_mode; FT_OpaquePaint backdrop_paint; } FT_PaintComposite ; A structure representing a \u2018COLR\u2019 v1 PaintComposite paint table. Used for compositing two paints in a \u2018COLR\u2019 v1 directed acyclic graph.","title":"FT_PaintComposite"},{"location":"ft2-layer_management.html#ft_colr_paint","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_COLR_Paint_ { FT_PaintFormat format; union { FT_PaintColrLayers colr_layers; FT_PaintGlyph glyph; FT_PaintSolid solid; FT_PaintLinearGradient linear_gradient; FT_PaintRadialGradient radial_gradient; FT_PaintSweepGradient sweep_gradient; FT_PaintTransform transform; FT_PaintTranslate translate; FT_PaintScale scale; FT_PaintRotate rotate; FT_PaintSkew skew; FT_PaintComposite composite; FT_PaintColrGlyph colr_glyph; } u; } FT_COLR_Paint ; A union object representing format and details of a paint table of a \u2018COLR\u2019 v1 font, see \u2018 https://github.com/googlefonts/colr-gradients-spec \u2019. Use FT_Get_Paint to retrieve a FT_COLR_Paint for an FT_OpaquePaint object.","title":"FT_COLR_Paint"},{"location":"ft2-layer_management.html#ft_color_root_transform","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef enum FT_Color_Root_Transform_ { FT_COLOR_INCLUDE_ROOT_TRANSFORM , FT_COLOR_NO_ROOT_TRANSFORM , FT_COLOR_ROOT_TRANSFORM_MAX } FT_Color_Root_Transform ; An enumeration to specify whether FT_Get_Color_Glyph_Paint is to return a root transform to configure the client's graphics context matrix.","title":"FT_Color_Root_Transform"},{"location":"ft2-layer_management.html#ft_clipbox","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). typedef struct FT_ClipBox_ { FT_Vector bottom_left; FT_Vector top_left; FT_Vector top_right; FT_Vector bottom_right; } FT_ClipBox ; A structure representing a \u2018COLR\u2019 v1 \u2018ClipBox\u2019 table. \u2018COLR\u2019 v1 glyphs may optionally define a clip box for aiding allocation or defining a maximum drawable region. Use FT_Get_Color_Glyph_ClipBox to retrieve it.","title":"FT_ClipBox"},{"location":"ft2-layer_management.html#ft_get_color_glyph_paint","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Color_Glyph_Paint ( FT_Face face, FT_UInt base_glyph, FT_Color_Root_Transform root_transform, FT_OpaquePaint * paint ); This is the starting point and interface to color gradient information in a \u2018COLR\u2019 v1 table in OpenType fonts to recursively retrieve the paint tables for the directed acyclic graph of a colored glyph, given a glyph ID. https://github.com/googlefonts/colr-gradients-spec In a \u2018COLR\u2019 v1 font, each color glyph defines a directed acyclic graph of nested paint tables, such as PaintGlyph , PaintSolid , PaintLinearGradient , PaintRadialGradient , and so on. Using this function and specifying a glyph ID, one retrieves the root paint table for this glyph ID. This function allows control whether an initial root transform is returned to configure scaling, transform, and translation correctly on the client's graphics context. The initial root transform is computed and returned according to the values configured for FT_Size and FT_Set_Transform on the FT_Face object, see below for details of the root_transform parameter. This has implications for a client \u2018COLR\u2019 v1 implementation: When this function returns an initially computed root transform, at the time of executing the FT_PaintGlyph operation, the contours should be retrieved using FT_Load_Glyph at unscaled, untransformed size. This is because the root transform applied to the graphics context will take care of correct scaling. Alternatively, to allow hinting of contours, at the time of executing FT_Load_Glyph , the current graphics context transformation matrix can be decomposed into a scaling matrix and a remainder, and FT_Load_Glyph can be used to retrieve the contours at scaled size. Care must then be taken to blit or clip to the graphics context with taking this remainder transformation into account.","title":"FT_Get_Color_Glyph_Paint"},{"location":"ft2-layer_management.html#ft_get_color_glyph_clipbox","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Color_Glyph_ClipBox ( FT_Face face, FT_UInt base_glyph, FT_ClipBox * clip_box ); Search for a \u2018COLR\u2019 v1 clip box for the specified base_glyph and fill the clip_box parameter with the \u2018COLR\u2019 v1 \u2018ClipBox\u2019 information if one is found.","title":"FT_Get_Color_Glyph_ClipBox"},{"location":"ft2-layer_management.html#ft_get_paint_layers","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Paint_Layers ( FT_Face face, FT_LayerIterator * iterator, FT_OpaquePaint * paint ); Access the layers of a PaintColrLayers table. If the root paint of a color glyph, or a nested paint of a \u2018COLR\u2019 glyph is a PaintColrLayers table, this function retrieves the layers of the PaintColrLayers table. The FT_PaintColrLayers object contains an FT_LayerIterator , which is used here to iterate over the layers. Each layer is returned as an FT_OpaquePaint object, which then can be used with FT_Get_Paint to retrieve the actual paint object.","title":"FT_Get_Paint_Layers"},{"location":"ft2-layer_management.html#ft_get_colorline_stops","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Colorline_Stops ( FT_Face face, FT_ColorStop * color_stop, FT_ColorStopIterator * iterator ); This is an interface to color gradient information in a \u2018COLR\u2019 v1 table in OpenType fonts to iteratively retrieve the gradient and solid fill information for colored glyph layers for a specified glyph ID. https://github.com/googlefonts/colr-gradients-spec","title":"FT_Get_Colorline_Stops"},{"location":"ft2-layer_management.html#ft_get_paint","text":"Defined in FT_COLOR_H (freetype/ftcolor.h). FT_EXPORT( FT_Bool ) FT_Get_Paint ( FT_Face face, FT_OpaquePaint opaque_paint, FT_COLR_Paint * paint ); Access the details of a paint using an FT_OpaquePaint opaque paint object, which internally stores the offset to the respective Paint object in the \u2018COLR\u2019 table.","title":"FT_Get_Paint"},{"location":"ft2-lcd_rendering.html","text":"FreeType \u00bb Docs \u00bb Controlling FreeType Modules \u00bb Subpixel Rendering Subpixel Rendering \u00b6 Synopsis \u00b6 FreeType provides two alternative subpixel rendering technologies. Should you define FT_CONFIG_OPTION_SUBPIXEL_RENDERING in your ftoption.h file, this enables ClearType-style rendering. Otherwise, Harmony LCD rendering is enabled. These technologies are controlled differently and API described below, although always available, performs its function when appropriate method is enabled and does nothing otherwise. ClearType-style LCD rendering exploits the color-striped structure of LCD pixels, increasing the available resolution in the direction of the stripe (usually horizontal RGB) by a factor of 3. Using the subpixel coverages unfiltered can create severe color fringes especially when rendering thin features. Indeed, to produce black-on-white text, the nearby color subpixels must be dimmed evenly. Therefore, an equalizing 5-tap FIR filter should be applied to subpixel coverages regardless of pixel boundaries and should have these properties: It should be symmetrical, like { a, b, c, b, a }, to avoid any shifts in appearance. It should be color-balanced, meaning a + b = c, to reduce color fringes by distributing the computed coverage for one subpixel to all subpixels equally. It should be normalized, meaning 2a + 2b + c = 1.0 to maintain overall brightness. Boxy 3-tap filter {0, \u2153, \u2153, \u2153, 0} is sharper but is less forgiving of non-ideal gamma curves of a screen (and viewing angles), beveled filters are fuzzier but more tolerant. Use the FT_Library_SetLcdFilter or FT_Library_SetLcdFilterWeights API to specify a low-pass filter, which is then applied to subpixel-rendered bitmaps generated through FT_Render_Glyph . Harmony LCD rendering is suitable to panels with any regular subpixel structure, not just monitors with 3 color striped subpixels, as long as the color subpixels have fixed positions relative to the pixel center. In this case, each color channel can be rendered separately after shifting the outline opposite to the subpixel shift so that the coverage maps are aligned. This method is immune to color fringes because the shifts do not change integral coverage. The subpixel geometry must be specified by xy-coordinates for each subpixel. By convention they may come in the RGB order: {{-\u2153, 0}, {0, 0}, {\u2153, 0}} for standard RGB striped panel or {{-\u2159, \u00bc}, {-\u2159, -\u00bc}, {\u2153, 0}} for a certain PenTile panel. Use the FT_Library_SetLcdGeometry API to specify subpixel positions. If one follows the RGB order convention, the same order applies to the resulting FT_PIXEL_MODE_LCD and FT_PIXEL_MODE_LCD_V bitmaps. Note, however, that the coordinate frame for the latter must be rotated clockwise. Harmony with default LCD geometry is equivalent to ClearType with light filter. As a result of ClearType filtering or Harmony shifts, the resulting dimensions of LCD bitmaps can be slightly wider or taller than the dimensions the original outline with regard to the pixel grid. For example, for FT_RENDER_MODE_LCD , the filter adds 2 subpixels to the left, and 2 subpixels to the right. The bitmap offset values are adjusted accordingly, so clients shouldn't need to modify their layout and glyph positioning code when enabling the filter. The ClearType and Harmony rendering is applicable to glyph bitmaps rendered through FT_Render_Glyph , FT_Load_Glyph , FT_Load_Char , and FT_Glyph_To_Bitmap , when FT_RENDER_MODE_LCD or FT_RENDER_MODE_LCD_V is specified. This API does not control FT_Outline_Render and FT_Outline_Get_Bitmap . The described algorithms can completely remove color artefacts when combined with gamma-corrected alpha blending in linear space. Each of the 3 alpha values (subpixels) must by independently used to blend one color channel. That is, red alpha blends the red channel of the text color with the red channel of the background pixel. FT_LcdFilter \u00b6 Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). typedef enum FT_LcdFilter_ { FT_LCD_FILTER_NONE = 0, FT_LCD_FILTER_DEFAULT = 1, FT_LCD_FILTER_LIGHT = 2, FT_LCD_FILTER_LEGACY1 = 3, FT_LCD_FILTER_LEGACY = 16, FT_LCD_FILTER_MAX /* do not remove */ } FT_LcdFilter ; A list of values to identify various types of LCD filters. values FT_LCD_FILTER_NONE Do not perform filtering. When used with subpixel rendering, this results in sometimes severe color fringes. FT_LCD_FILTER_DEFAULT This is a beveled, normalized, and color-balanced five-tap filter with weights of [0x08 0x4D 0x56 0x4D 0x08] in 1/256 units. FT_LCD_FILTER_LIGHT this is a boxy, normalized, and color-balanced three-tap filter with weights of [0x00 0x55 0x56 0x55 0x00] in 1/256 units. FT_LCD_FILTER_LEGACY FT_LCD_FILTER_LEGACY1 This filter corresponds to the original libXft color filter. It provides high contrast output but can exhibit really bad color fringes if glyphs are not extremely well hinted to the pixel grid. This filter is only provided for comparison purposes, and might be disabled or stay unsupported in the future. The second value is provided for compatibility with FontConfig, which historically used different enumeration, sometimes incorrectly forwarded to FreeType. since 2.3.0 ( FT_LCD_FILTER_LEGACY1 since 2.6.2) FT_Library_SetLcdFilter \u00b6 Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). FT_EXPORT( FT_Error ) FT_Library_SetLcdFilter ( FT_Library library, FT_LcdFilter filter ); This function is used to change filter applied to LCD decimated bitmaps, like the ones used when calling FT_Render_Glyph with FT_RENDER_MODE_LCD or FT_RENDER_MODE_LCD_V . input library A handle to the target library instance. filter The filter type. You can use FT_LCD_FILTER_NONE here to disable this feature, or FT_LCD_FILTER_DEFAULT to use a default filter that should work well on most LCD screens. return FreeType error code. 0 means success. note Since 2.10.3 the LCD filtering is enabled with FT_LCD_FILTER_DEFAULT . It is no longer necessary to call this function explicitly except to choose a different filter or disable filtering altogether with FT_LCD_FILTER_NONE . This function does nothing but returns FT_Err_Unimplemented_Feature if the configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not defined in your build of the library. since 2.3.0 FT_Library_SetLcdFilterWeights \u00b6 Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). FT_EXPORT( FT_Error ) FT_Library_SetLcdFilterWeights ( FT_Library library, unsigned char *weights ); This function can be used to enable LCD filter with custom weights, instead of using presets in FT_Library_SetLcdFilter . input library A handle to the target library instance. weights A pointer to an array; the function copies the first five bytes and uses them to specify the filter weights in 1/256 units. return FreeType error code. 0 means success. note This function does nothing but returns FT_Err_Unimplemented_Feature if the configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not defined in your build of the library. LCD filter weights can also be set per face using FT_Face_Properties with FT_PARAM_TAG_LCD_FILTER_WEIGHTS . since 2.4.0 FT_LcdFiveTapFilter \u00b6 Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). # define FT_LCD_FILTER_FIVE_TAPS 5 typedef FT_Byte FT_LcdFiveTapFilter [FT_LCD_FILTER_FIVE_TAPS]; A typedef for passing the five LCD filter weights to FT_Face_Properties within an FT_Parameter structure. since 2.8 FT_Library_SetLcdGeometry \u00b6 Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). FT_EXPORT( FT_Error ) FT_Library_SetLcdGeometry ( FT_Library library, FT_Vector sub[3] ); This function can be used to modify default positions of color subpixels, which controls Harmony LCD rendering. input library A handle to the target library instance. sub A pointer to an array of 3 vectors in 26.6 fractional pixel format; the function modifies the default values, see the note below. return FreeType error code. 0 means success. note Subpixel geometry examples: {{-21, 0}, {0, 0}, {21, 0}} is the default, corresponding to 3 color stripes shifted by a third of a pixel. This could be an RGB panel. {{21, 0}, {0, 0}, {-21, 0}} looks the same as the default but can specify a BGR panel instead, while keeping the bitmap in the same RGB888 format. {{0, 21}, {0, 0}, {0, -21}} is the vertical RGB, but the bitmap stays RGB888 as a result. {{-11, 16}, {-11, -16}, {22, 0}} is a certain PenTile arrangement. This function does nothing and returns FT_Err_Unimplemented_Feature in the context of ClearType-style subpixel rendering when FT_CONFIG_OPTION_SUBPIXEL_RENDERING is defined in your build of the library. since 2.10.0","title":"Subpixel Rendering"},{"location":"ft2-lcd_rendering.html#subpixel-rendering","text":"","title":"Subpixel Rendering"},{"location":"ft2-lcd_rendering.html#synopsis","text":"FreeType provides two alternative subpixel rendering technologies. Should you define FT_CONFIG_OPTION_SUBPIXEL_RENDERING in your ftoption.h file, this enables ClearType-style rendering. Otherwise, Harmony LCD rendering is enabled. These technologies are controlled differently and API described below, although always available, performs its function when appropriate method is enabled and does nothing otherwise. ClearType-style LCD rendering exploits the color-striped structure of LCD pixels, increasing the available resolution in the direction of the stripe (usually horizontal RGB) by a factor of 3. Using the subpixel coverages unfiltered can create severe color fringes especially when rendering thin features. Indeed, to produce black-on-white text, the nearby color subpixels must be dimmed evenly. Therefore, an equalizing 5-tap FIR filter should be applied to subpixel coverages regardless of pixel boundaries and should have these properties: It should be symmetrical, like { a, b, c, b, a }, to avoid any shifts in appearance. It should be color-balanced, meaning a + b = c, to reduce color fringes by distributing the computed coverage for one subpixel to all subpixels equally. It should be normalized, meaning 2a + 2b + c = 1.0 to maintain overall brightness. Boxy 3-tap filter {0, \u2153, \u2153, \u2153, 0} is sharper but is less forgiving of non-ideal gamma curves of a screen (and viewing angles), beveled filters are fuzzier but more tolerant. Use the FT_Library_SetLcdFilter or FT_Library_SetLcdFilterWeights API to specify a low-pass filter, which is then applied to subpixel-rendered bitmaps generated through FT_Render_Glyph . Harmony LCD rendering is suitable to panels with any regular subpixel structure, not just monitors with 3 color striped subpixels, as long as the color subpixels have fixed positions relative to the pixel center. In this case, each color channel can be rendered separately after shifting the outline opposite to the subpixel shift so that the coverage maps are aligned. This method is immune to color fringes because the shifts do not change integral coverage. The subpixel geometry must be specified by xy-coordinates for each subpixel. By convention they may come in the RGB order: {{-\u2153, 0}, {0, 0}, {\u2153, 0}} for standard RGB striped panel or {{-\u2159, \u00bc}, {-\u2159, -\u00bc}, {\u2153, 0}} for a certain PenTile panel. Use the FT_Library_SetLcdGeometry API to specify subpixel positions. If one follows the RGB order convention, the same order applies to the resulting FT_PIXEL_MODE_LCD and FT_PIXEL_MODE_LCD_V bitmaps. Note, however, that the coordinate frame for the latter must be rotated clockwise. Harmony with default LCD geometry is equivalent to ClearType with light filter. As a result of ClearType filtering or Harmony shifts, the resulting dimensions of LCD bitmaps can be slightly wider or taller than the dimensions the original outline with regard to the pixel grid. For example, for FT_RENDER_MODE_LCD , the filter adds 2 subpixels to the left, and 2 subpixels to the right. The bitmap offset values are adjusted accordingly, so clients shouldn't need to modify their layout and glyph positioning code when enabling the filter. The ClearType and Harmony rendering is applicable to glyph bitmaps rendered through FT_Render_Glyph , FT_Load_Glyph , FT_Load_Char , and FT_Glyph_To_Bitmap , when FT_RENDER_MODE_LCD or FT_RENDER_MODE_LCD_V is specified. This API does not control FT_Outline_Render and FT_Outline_Get_Bitmap . The described algorithms can completely remove color artefacts when combined with gamma-corrected alpha blending in linear space. Each of the 3 alpha values (subpixels) must by independently used to blend one color channel. That is, red alpha blends the red channel of the text color with the red channel of the background pixel.","title":"Synopsis"},{"location":"ft2-lcd_rendering.html#ft_lcdfilter","text":"Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). typedef enum FT_LcdFilter_ { FT_LCD_FILTER_NONE = 0, FT_LCD_FILTER_DEFAULT = 1, FT_LCD_FILTER_LIGHT = 2, FT_LCD_FILTER_LEGACY1 = 3, FT_LCD_FILTER_LEGACY = 16, FT_LCD_FILTER_MAX /* do not remove */ } FT_LcdFilter ; A list of values to identify various types of LCD filters.","title":"FT_LcdFilter"},{"location":"ft2-lcd_rendering.html#ft_library_setlcdfilter","text":"Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). FT_EXPORT( FT_Error ) FT_Library_SetLcdFilter ( FT_Library library, FT_LcdFilter filter ); This function is used to change filter applied to LCD decimated bitmaps, like the ones used when calling FT_Render_Glyph with FT_RENDER_MODE_LCD or FT_RENDER_MODE_LCD_V .","title":"FT_Library_SetLcdFilter"},{"location":"ft2-lcd_rendering.html#ft_library_setlcdfilterweights","text":"Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). FT_EXPORT( FT_Error ) FT_Library_SetLcdFilterWeights ( FT_Library library, unsigned char *weights ); This function can be used to enable LCD filter with custom weights, instead of using presets in FT_Library_SetLcdFilter .","title":"FT_Library_SetLcdFilterWeights"},{"location":"ft2-lcd_rendering.html#ft_lcdfivetapfilter","text":"Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). # define FT_LCD_FILTER_FIVE_TAPS 5 typedef FT_Byte FT_LcdFiveTapFilter [FT_LCD_FILTER_FIVE_TAPS]; A typedef for passing the five LCD filter weights to FT_Face_Properties within an FT_Parameter structure.","title":"FT_LcdFiveTapFilter"},{"location":"ft2-lcd_rendering.html#ft_library_setlcdgeometry","text":"Defined in FT_LCD_FILTER_H (freetype/ftlcdfil.h). FT_EXPORT( FT_Error ) FT_Library_SetLcdGeometry ( FT_Library library, FT_Vector sub[3] ); This function can be used to modify default positions of color subpixels, which controls Harmony LCD rendering.","title":"FT_Library_SetLcdGeometry"},{"location":"ft2-library_setup.html","text":"FreeType \u00bb Docs \u00bb Core API \u00bb Library Setup Library Setup \u00b6 Synopsis \u00b6 Functions to start and end the usage of the FreeType library. Note that FT_Library_Version and FREETYPE_XXX are of limited use because even a new release of FreeType with only documentation changes increases the version number. FT_Library \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_LibraryRec_ * FT_Library ; A handle to a FreeType library instance. Each \u2018library\u2019 is completely independent from the others; it is the \u2018root\u2019 of a set of objects like fonts, faces, sizes, etc. It also embeds a memory manager (see FT_Memory ), as well as a scan-line converter object (see FT_Raster ). [Since 2.5.6] In multi-threaded applications it is easiest to use one FT_Library object per thread. In case this is too cumbersome, a single FT_Library object across threads is possible also, as long as a mutex lock is used around FT_New_Face and FT_Done_Face . note Library objects are normally created by FT_Init_FreeType , and destroyed with FT_Done_FreeType . If you need reference-counting (cf. FT_Reference_Library ), use FT_New_Library and FT_Done_Library . FT_Init_FreeType \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Init_FreeType ( FT_Library *alibrary ); Initialize a new FreeType library object. The set of modules that are registered by this function is determined at build time. output alibrary A handle to a new library object. return FreeType error code. 0 means success. note In case you want to provide your own memory allocating routines, use FT_New_Library instead, followed by a call to FT_Add_Default_Modules (or a series of calls to FT_Add_Module ) and FT_Set_Default_Properties . See the documentation of FT_Library and FT_Face for multi-threading issues. If you need reference-counting (cf. FT_Reference_Library ), use FT_New_Library and FT_Done_Library . If compilation option FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES is set, this function reads the FREETYPE_PROPERTIES environment variable to control driver properties. See section \u2018 Driver properties \u2019 for more. FT_Done_FreeType \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Done_FreeType ( FT_Library library ); Destroy a given FreeType library object and all of its children, including resources, drivers, faces, sizes, etc. input library A handle to the target library object. return FreeType error code. 0 means success. FT_Library_Version \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( void ) FT_Library_Version ( FT_Library library, FT_Int *amajor, FT_Int *aminor, FT_Int *apatch ); Return the version of the FreeType library being used. This is useful when dynamically linking to the library, since one cannot use the macros FREETYPE_MAJOR , FREETYPE_MINOR , and FREETYPE_PATCH . input library A source library handle. output amajor The major version number. aminor The minor version number. apatch The patch version number. note The reason why this function takes a library argument is because certain programs implement library initialization in a custom way that doesn't use FT_Init_FreeType . In such cases, the library version might not be available before the library object has been created. FREETYPE_XXX \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FREETYPE_MAJOR 2 # define FREETYPE_MINOR 13 # define FREETYPE_PATCH 2 These three macros identify the FreeType source code version. Use FT_Library_Version to access them at runtime. values FREETYPE_MAJOR The major version number. FREETYPE_MINOR The minor version number. FREETYPE_PATCH The patch level. note The version number of FreeType if built as a dynamic link library with the \u2018libtool\u2019 package is not controlled by these three macros.","title":"Library Setup"},{"location":"ft2-library_setup.html#library-setup","text":"","title":"Library Setup"},{"location":"ft2-library_setup.html#synopsis","text":"Functions to start and end the usage of the FreeType library. Note that FT_Library_Version and FREETYPE_XXX are of limited use because even a new release of FreeType with only documentation changes increases the version number.","title":"Synopsis"},{"location":"ft2-library_setup.html#ft_library","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_LibraryRec_ * FT_Library ; A handle to a FreeType library instance. Each \u2018library\u2019 is completely independent from the others; it is the \u2018root\u2019 of a set of objects like fonts, faces, sizes, etc. It also embeds a memory manager (see FT_Memory ), as well as a scan-line converter object (see FT_Raster ). [Since 2.5.6] In multi-threaded applications it is easiest to use one FT_Library object per thread. In case this is too cumbersome, a single FT_Library object across threads is possible also, as long as a mutex lock is used around FT_New_Face and FT_Done_Face .","title":"FT_Library"},{"location":"ft2-library_setup.html#ft_init_freetype","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Init_FreeType ( FT_Library *alibrary ); Initialize a new FreeType library object. The set of modules that are registered by this function is determined at build time.","title":"FT_Init_FreeType"},{"location":"ft2-library_setup.html#ft_done_freetype","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Done_FreeType ( FT_Library library ); Destroy a given FreeType library object and all of its children, including resources, drivers, faces, sizes, etc.","title":"FT_Done_FreeType"},{"location":"ft2-library_setup.html#ft_library_version","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( void ) FT_Library_Version ( FT_Library library, FT_Int *amajor, FT_Int *aminor, FT_Int *apatch ); Return the version of the FreeType library being used. This is useful when dynamically linking to the library, since one cannot use the macros FREETYPE_MAJOR , FREETYPE_MINOR , and FREETYPE_PATCH .","title":"FT_Library_Version"},{"location":"ft2-library_setup.html#freetype_xxx","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FREETYPE_MAJOR 2 # define FREETYPE_MINOR 13 # define FREETYPE_PATCH 2 These three macros identify the FreeType source code version. Use FT_Library_Version to access them at runtime.","title":"FREETYPE_XXX"},{"location":"ft2-list_processing.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb List Processing List Processing \u00b6 Synopsis \u00b6 This section contains various definitions related to list processing using doubly-linked nodes. FT_List \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_ListRec_* FT_List ; A handle to a list record (see FT_ListRec ). FT_ListNode \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_ListNodeRec_* FT_ListNode ; Many elements and objects in FreeType are listed through an FT_List record (see FT_ListRec ). As its name suggests, an FT_ListNode is a handle to a single list element. FT_ListRec \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_ListRec_ { FT_ListNode head; FT_ListNode tail; } FT_ListRec ; A structure used to hold a simple doubly-linked list. These are used in many parts of FreeType. fields head The head (first element) of doubly-linked list. tail The tail (last element) of doubly-linked list. FT_ListNodeRec \u00b6 Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_ListNodeRec_ { FT_ListNode prev; FT_ListNode next; void * data; } FT_ListNodeRec ; A structure used to hold a single list element. fields prev The previous element in the list. NULL if first. next The next element in the list. NULL if last. data A typeless pointer to the listed object. FT_List_Add \u00b6 Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Add ( FT_List list, FT_ListNode node ); Append an element to the end of a list. inout list A pointer to the parent list. node The node to append. FT_List_Insert \u00b6 Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Insert ( FT_List list, FT_ListNode node ); Insert an element at the head of a list. inout list A pointer to parent list. node The node to insert. FT_List_Find \u00b6 Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( FT_ListNode ) FT_List_Find ( FT_List list, void * data ); Find the list node for a given listed object. input list A pointer to the parent list. data The address of the listed object. return List node. NULL if it wasn't found. FT_List_Remove \u00b6 Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Remove ( FT_List list, FT_ListNode node ); Remove a node from a list. This function doesn't check whether the node is in the list! input node The node to remove. inout list A pointer to the parent list. FT_List_Up \u00b6 Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Up ( FT_List list, FT_ListNode node ); Move a node to the head/top of a list. Used to maintain LRU lists. inout list A pointer to the parent list. node The node to move. FT_List_Iterate \u00b6 Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( FT_Error ) FT_List_Iterate ( FT_List list, FT_List_Iterator iterator, void * user ); Parse a list and calls a given iterator function on each element. Note that parsing is stopped as soon as one of the iterator calls returns a non-zero value. input list A handle to the list. iterator An iterator function, called on each node of the list. user A user-supplied field that is passed as the second argument to the iterator. return The result (a FreeType error code) of the last iterator call. FT_List_Iterator \u00b6 Defined in FT_LIST_H (freetype/ftlist.h). typedef FT_Error (* FT_List_Iterator )( FT_ListNode node, void * user ); An FT_List iterator function that is called during a list parse by FT_List_Iterate . input node The current iteration list node. user A typeless pointer passed to FT_List_Iterate . Can be used to point to the iteration's state. FT_List_Finalize \u00b6 Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Finalize ( FT_List list, FT_List_Destructor destroy, FT_Memory memory, void * user ); Destroy all elements in the list as well as the list itself. input list A handle to the list. destroy A list destructor that will be applied to each element of the list. Set this to NULL if not needed. memory The current memory object that handles deallocation. user A user-supplied field that is passed as the last argument to the destructor. note This function expects that all nodes added by FT_List_Add or FT_List_Insert have been dynamically allocated. FT_List_Destructor \u00b6 Defined in FT_LIST_H (freetype/ftlist.h). typedef void (* FT_List_Destructor )( FT_Memory memory, void * data, void * user ); An FT_List iterator function that is called during a list finalization by FT_List_Finalize to destroy all elements in a given list. input system The current system object. data The current object to destroy. user A typeless pointer passed to FT_List_Iterate . It can be used to point to the iteration's state.","title":"List Processing"},{"location":"ft2-list_processing.html#list-processing","text":"","title":"List Processing"},{"location":"ft2-list_processing.html#synopsis","text":"This section contains various definitions related to list processing using doubly-linked nodes.","title":"Synopsis"},{"location":"ft2-list_processing.html#ft_list","text":"Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_ListRec_* FT_List ; A handle to a list record (see FT_ListRec ).","title":"FT_List"},{"location":"ft2-list_processing.html#ft_listnode","text":"Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_ListNodeRec_* FT_ListNode ; Many elements and objects in FreeType are listed through an FT_List record (see FT_ListRec ). As its name suggests, an FT_ListNode is a handle to a single list element.","title":"FT_ListNode"},{"location":"ft2-list_processing.html#ft_listrec","text":"Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_ListRec_ { FT_ListNode head; FT_ListNode tail; } FT_ListRec ; A structure used to hold a simple doubly-linked list. These are used in many parts of FreeType.","title":"FT_ListRec"},{"location":"ft2-list_processing.html#ft_listnoderec","text":"Defined in FT_TYPES_H (freetype/fttypes.h). typedef struct FT_ListNodeRec_ { FT_ListNode prev; FT_ListNode next; void * data; } FT_ListNodeRec ; A structure used to hold a single list element.","title":"FT_ListNodeRec"},{"location":"ft2-list_processing.html#ft_list_add","text":"Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Add ( FT_List list, FT_ListNode node ); Append an element to the end of a list.","title":"FT_List_Add"},{"location":"ft2-list_processing.html#ft_list_insert","text":"Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Insert ( FT_List list, FT_ListNode node ); Insert an element at the head of a list.","title":"FT_List_Insert"},{"location":"ft2-list_processing.html#ft_list_find","text":"Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( FT_ListNode ) FT_List_Find ( FT_List list, void * data ); Find the list node for a given listed object.","title":"FT_List_Find"},{"location":"ft2-list_processing.html#ft_list_remove","text":"Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Remove ( FT_List list, FT_ListNode node ); Remove a node from a list. This function doesn't check whether the node is in the list!","title":"FT_List_Remove"},{"location":"ft2-list_processing.html#ft_list_up","text":"Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Up ( FT_List list, FT_ListNode node ); Move a node to the head/top of a list. Used to maintain LRU lists.","title":"FT_List_Up"},{"location":"ft2-list_processing.html#ft_list_iterate","text":"Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( FT_Error ) FT_List_Iterate ( FT_List list, FT_List_Iterator iterator, void * user ); Parse a list and calls a given iterator function on each element. Note that parsing is stopped as soon as one of the iterator calls returns a non-zero value.","title":"FT_List_Iterate"},{"location":"ft2-list_processing.html#ft_list_iterator","text":"Defined in FT_LIST_H (freetype/ftlist.h). typedef FT_Error (* FT_List_Iterator )( FT_ListNode node, void * user ); An FT_List iterator function that is called during a list parse by FT_List_Iterate .","title":"FT_List_Iterator"},{"location":"ft2-list_processing.html#ft_list_finalize","text":"Defined in FT_LIST_H (freetype/ftlist.h). FT_EXPORT( void ) FT_List_Finalize ( FT_List list, FT_List_Destructor destroy, FT_Memory memory, void * user ); Destroy all elements in the list as well as the list itself.","title":"FT_List_Finalize"},{"location":"ft2-list_processing.html#ft_list_destructor","text":"Defined in FT_LIST_H (freetype/ftlist.h). typedef void (* FT_List_Destructor )( FT_Memory memory, void * data, void * user ); An FT_List iterator function that is called during a list finalization by FT_List_Finalize to destroy all elements in a given list.","title":"FT_List_Destructor"},{"location":"ft2-lzw.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb LZW Streams LZW Streams \u00b6 Synopsis \u00b6 In certain builds of the library, LZW compression recognition is automatically handled when calling FT_New_Face or FT_Open_Face . This means that if no font driver is capable of handling the raw compressed file, the library will try to open a LZW stream from it and re-open the face with it. The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance. This section contains the declaration of LZW-specific functions. FT_Stream_OpenLZW \u00b6 Defined in FT_LZW_H (freetype/ftlzw.h). FT_EXPORT( FT_Error ) FT_Stream_OpenLZW ( FT_Stream stream, FT_Stream source ); Open a new stream to parse LZW-compressed font files. This is mainly used to support the compressed *.pcf.Z fonts that come with XFree86. input stream The target embedding stream. source The source stream. return FreeType error code. 0 means success. note The source stream must be opened before calling this function. Calling the internal function FT_Stream_Close on the new stream will not call FT_Stream_Close on the source stream. None of the stream objects will be released to the heap. This function may return FT_Err_Unimplemented_Feature if your build of FreeType was not compiled with LZW support.","title":"LZW Streams"},{"location":"ft2-lzw.html#lzw-streams","text":"","title":"LZW Streams"},{"location":"ft2-lzw.html#synopsis","text":"In certain builds of the library, LZW compression recognition is automatically handled when calling FT_New_Face or FT_Open_Face . This means that if no font driver is capable of handling the raw compressed file, the library will try to open a LZW stream from it and re-open the face with it. The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance. This section contains the declaration of LZW-specific functions.","title":"Synopsis"},{"location":"ft2-lzw.html#ft_stream_openlzw","text":"Defined in FT_LZW_H (freetype/ftlzw.h). FT_EXPORT( FT_Error ) FT_Stream_OpenLZW ( FT_Stream stream, FT_Stream source ); Open a new stream to parse LZW-compressed font files. This is mainly used to support the compressed *.pcf.Z fonts that come with XFree86.","title":"FT_Stream_OpenLZW"},{"location":"ft2-mac_specific.html","text":"FreeType \u00bb Docs \u00bb Extended API \u00bb Mac Specific Interface Mac Specific Interface \u00b6 Synopsis \u00b6 The following definitions are only available if FreeType is compiled on a Macintosh. FT_New_Face_From_FOND \u00b6 Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_New_Face_From_FOND ( FT_Library library, Handle fond, FT_Long face_index, FT_Face *aface ) FT_DEPRECATED_ATTRIBUTE; Create a new face object from a FOND resource. inout library A handle to the library resource. input fond A FOND resource. face_index Only supported for the -1 \u2018sanity check\u2019 special case. output aface A handle to a new face object. return FreeType error code. 0 means success. example This function can be used to create FT_Face objects from fonts that are installed in the system as follows. fond = GetResource( 'FOND', fontName ); error = FT_New_Face_From_FOND( library, fond, 0, &face ); FT_GetFile_From_Mac_Name \u00b6 Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_GetFile_From_Mac_Name ( const char * fontName, FSSpec* pathSpec, FT_Long * face_index ) FT_DEPRECATED_ATTRIBUTE; Return an FSSpec for the disk file containing the named font. input fontName Mac OS name of the font (e.g., Times New Roman Bold). output pathSpec FSSpec to the file. For passing to FT_New_Face_From_FSSpec . face_index Index of the face. For passing to FT_New_Face_From_FSSpec . return FreeType error code. 0 means success. FT_GetFile_From_Mac_ATS_Name \u00b6 Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_GetFile_From_Mac_ATS_Name ( const char * fontName, FSSpec* pathSpec, FT_Long * face_index ) FT_DEPRECATED_ATTRIBUTE; Return an FSSpec for the disk file containing the named font. input fontName Mac OS name of the font in ATS framework. output pathSpec FSSpec to the file. For passing to FT_New_Face_From_FSSpec . face_index Index of the face. For passing to FT_New_Face_From_FSSpec . return FreeType error code. 0 means success. FT_GetFilePath_From_Mac_ATS_Name \u00b6 Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_GetFilePath_From_Mac_ATS_Name ( const char * fontName, UInt8* path, UInt32 maxPathSize, FT_Long * face_index ) FT_DEPRECATED_ATTRIBUTE; Return a pathname of the disk file and face index for given font name that is handled by ATS framework. input fontName Mac OS name of the font in ATS framework. output path Buffer to store pathname of the file. For passing to FT_New_Face . The client must allocate this buffer before calling this function. maxPathSize Lengths of the buffer path that client allocated. face_index Index of the face. For passing to FT_New_Face . return FreeType error code. 0 means success. FT_New_Face_From_FSSpec \u00b6 Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_New_Face_From_FSSpec ( FT_Library library, const FSSpec *spec, FT_Long face_index, FT_Face *aface ) FT_DEPRECATED_ATTRIBUTE; Create a new face object from a given resource and typeface index using an FSSpec to the font file. inout library A handle to the library resource. input spec FSSpec to the font file. face_index The index of the face within the resource. The first face has index 0. output aface A handle to a new face object. return FreeType error code. 0 means success. note FT_New_Face_From_FSSpec is identical to FT_New_Face except it accepts an FSSpec instead of a path. FT_New_Face_From_FSRef \u00b6 Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_New_Face_From_FSRef ( FT_Library library, const FSRef *ref, FT_Long face_index, FT_Face *aface ) FT_DEPRECATED_ATTRIBUTE; Create a new face object from a given resource and typeface index using an FSRef to the font file. inout library A handle to the library resource. input spec FSRef to the font file. face_index The index of the face within the resource. The first face has index 0. output aface A handle to a new face object. return FreeType error code. 0 means success. note FT_New_Face_From_FSRef is identical to FT_New_Face except it accepts an FSRef instead of a path.","title":"Mac Specific Interface"},{"location":"ft2-mac_specific.html#mac-specific-interface","text":"","title":"Mac Specific Interface"},{"location":"ft2-mac_specific.html#synopsis","text":"The following definitions are only available if FreeType is compiled on a Macintosh.","title":"Synopsis"},{"location":"ft2-mac_specific.html#ft_new_face_from_fond","text":"Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_New_Face_From_FOND ( FT_Library library, Handle fond, FT_Long face_index, FT_Face *aface ) FT_DEPRECATED_ATTRIBUTE; Create a new face object from a FOND resource.","title":"FT_New_Face_From_FOND"},{"location":"ft2-mac_specific.html#ft_getfile_from_mac_name","text":"Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_GetFile_From_Mac_Name ( const char * fontName, FSSpec* pathSpec, FT_Long * face_index ) FT_DEPRECATED_ATTRIBUTE; Return an FSSpec for the disk file containing the named font.","title":"FT_GetFile_From_Mac_Name"},{"location":"ft2-mac_specific.html#ft_getfile_from_mac_ats_name","text":"Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_GetFile_From_Mac_ATS_Name ( const char * fontName, FSSpec* pathSpec, FT_Long * face_index ) FT_DEPRECATED_ATTRIBUTE; Return an FSSpec for the disk file containing the named font.","title":"FT_GetFile_From_Mac_ATS_Name"},{"location":"ft2-mac_specific.html#ft_getfilepath_from_mac_ats_name","text":"Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_GetFilePath_From_Mac_ATS_Name ( const char * fontName, UInt8* path, UInt32 maxPathSize, FT_Long * face_index ) FT_DEPRECATED_ATTRIBUTE; Return a pathname of the disk file and face index for given font name that is handled by ATS framework.","title":"FT_GetFilePath_From_Mac_ATS_Name"},{"location":"ft2-mac_specific.html#ft_new_face_from_fsspec","text":"Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_New_Face_From_FSSpec ( FT_Library library, const FSSpec *spec, FT_Long face_index, FT_Face *aface ) FT_DEPRECATED_ATTRIBUTE; Create a new face object from a given resource and typeface index using an FSSpec to the font file.","title":"FT_New_Face_From_FSSpec"},{"location":"ft2-mac_specific.html#ft_new_face_from_fsref","text":"Defined in FT_MAC_H (freetype/ftmac.h). FT_EXPORT( FT_Error ) FT_New_Face_From_FSRef ( FT_Library library, const FSRef *ref, FT_Long face_index, FT_Face *aface ) FT_DEPRECATED_ATTRIBUTE; Create a new face object from a given resource and typeface index using an FSRef to the font file.","title":"FT_New_Face_From_FSRef"},{"location":"ft2-module_management.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb Module Management Module Management \u00b6 Synopsis \u00b6 The definitions below are used to manage modules within FreeType. Internal and external modules can be added, upgraded, and removed at runtime. For example, an alternative renderer or proprietary font driver can be registered and prioritized. Additionally, some module properties can also be controlled. Here is a list of existing values of the module_name field in the FT_Module_Class structure. autofitter bdf cff gxvalid otvalid pcf pfr psaux pshinter psnames raster1 sfnt smooth truetype type1 type42 t1cid winfonts Note that the FreeType Cache sub-system is not a FreeType module. FT_Module \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_ModuleRec_* FT_Module ; A handle to a given FreeType module object. A module can be a font driver, a renderer, or anything else that provides services to the former. FT_Module_Constructor \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). typedef FT_Error (* FT_Module_Constructor )( FT_Module module ); A function used to initialize (not create) a new module object. input module The module to initialize. FT_Module_Destructor \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). typedef void (* FT_Module_Destructor )( FT_Module module ); A function used to finalize (not destroy) a given module object. input module The module to finalize. FT_Module_Requester \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). typedef FT_Module_Interface (* FT_Module_Requester )( FT_Module module, const char * name ); A function used to query a given module for a specific interface. input module The module to be searched. name The name of the interface in the module. FT_Module_Class \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). typedef struct FT_Module_Class_ { FT_ULong module_flags; FT_Long module_size; const FT_String * module_name; FT_Fixed module_version; FT_Fixed module_requires; const void * module_interface; FT_Module_Constructor module_init; FT_Module_Destructor module_done; FT_Module_Requester get_interface; } FT_Module_Class ; The module class descriptor. While being a public structure necessary for FreeType's module bookkeeping, most of the fields are essentially internal, not to be used directly by an application. fields module_flags Bit flags describing the module. module_size The size of one module object/instance in bytes. module_name The name of the module. module_version The version, as a 16.16 fixed number (major.minor). module_requires The version of FreeType this module requires, as a 16.16 fixed number (major.minor). Starts at version 2.0, i.e., 0x20000. module_interface A typeless pointer to a structure (which varies between different modules) that holds the module's interface functions. This is essentially what get_interface returns. module_init The initializing function. module_done The finalizing function. get_interface The interface requesting function. FT_Add_Module \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_Add_Module ( FT_Library library, const FT_Module_Class * clazz ); Add a new module to a given library instance. inout library A handle to the library object. input clazz A pointer to class descriptor for the module. return FreeType error code. 0 means success. note An error will be returned if a module already exists by that name, or if the module requires a version of FreeType that is too great. FT_Get_Module \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Module ) FT_Get_Module ( FT_Library library, const char * module_name ); Find a module by its name. input library A handle to the library object. module_name The module's name (as an ASCII string). return A module handle. 0 if none was found. note FreeType's internal modules aren't documented very well, and you should look up the source code for details. FT_Remove_Module \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_Remove_Module ( FT_Library library, FT_Module module ); Remove a given module from a library instance. inout library A handle to a library object. input module A handle to a module object. return FreeType error code. 0 means success. note The module object is destroyed by the function in case of success. FT_Add_Default_Modules \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( void ) FT_Add_Default_Modules ( FT_Library library ); Add the set of default drivers to a given library object. This is only useful when you create a library object with FT_New_Library (usually to plug a custom memory manager). inout library A handle to a new library object. FT_FACE_DRIVER_NAME \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). # define FT_FACE_DRIVER_NAME ( face ) \\ ( ( *FT_REINTERPRET_CAST( FT_Module_Class **, \\ ( face )->driver ) )->module_name ) A macro that retrieves the name of a font driver from a face object. note The font driver name is a valid module_name for FT_Property_Set and FT_Property_Get . This is not the same as FT_Get_Font_Format . since 2.11 FT_Property_Set \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_Property_Set ( FT_Library library, const FT_String * module_name, const FT_String * property_name, const void * value ); Set a property for a given module. input library A handle to the library the module is part of. module_name The module name. property_name The property name. Properties are described in section \u2018 Driver properties \u2019. Note that only a few modules have properties. value A generic pointer to a variable or structure that gives the new value of the property. The exact definition of value is dependent on the property; see section \u2018 Driver properties \u2019. return FreeType error code. 0 means success. note If module_name isn't a valid module name, or property_name doesn't specify a valid property, or if value doesn't represent a valid value for the given property, an error is returned. The following example sets property \u2018bar\u2019 (a simple integer) in module \u2018foo\u2019 to value 1. FT_UInt bar; bar = 1; FT_Property_Set( library, \"foo\", \"bar\", &bar ); Note that the FreeType Cache sub-system doesn't recognize module property changes. To avoid glyph lookup confusion within the cache you should call FTC_Manager_Reset to completely flush the cache if a module property gets changed after FTC_Manager_New has been called. It is not possible to set properties of the FreeType Cache sub-system itself with FT_Property_Set; use ?FTC_Property_Set? instead. since 2.4.11 FT_Property_Get \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_Property_Get ( FT_Library library, const FT_String * module_name, const FT_String * property_name, void * value ); Get a module's property value. input library A handle to the library the module is part of. module_name The module name. property_name The property name. Properties are described in section \u2018 Driver properties \u2019. inout value A generic pointer to a variable or structure that gives the value of the property. The exact definition of value is dependent on the property; see section \u2018 Driver properties \u2019. return FreeType error code. 0 means success. note If module_name isn't a valid module name, or property_name doesn't specify a valid property, or if value doesn't represent a valid value for the given property, an error is returned. The following example gets property \u2018baz\u2019 (a range) in module \u2018foo\u2019. typedef range_ { FT_Int32 min; FT_Int32 max; } range; range baz; FT_Property_Get( library, \"foo\", \"baz\", &baz ); It is not possible to retrieve properties of the FreeType Cache sub-system with FT_Property_Get; use ?FTC_Property_Get? instead. since 2.4.11 FT_Set_Default_Properties \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( void ) FT_Set_Default_Properties ( FT_Library library ); If compilation option FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES is set, this function reads the FREETYPE_PROPERTIES environment variable to control driver properties. See section \u2018 Driver properties \u2019 for more. If the compilation option is not set, this function does nothing. FREETYPE_PROPERTIES has the following syntax form (broken here into multiple lines for better readability). ':' '=' ':' '=' ... Example: FREETYPE_PROPERTIES=truetype:interpreter-version=35 \\ cff:no-stem-darkening=0 inout library A handle to a new library object. since 2.8 FT_New_Library \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_New_Library ( FT_Memory memory, FT_Library *alibrary ); This function is used to create a new FreeType library instance from a given memory object. It is thus possible to use libraries with distinct memory allocators within the same program. Note, however, that the used FT_Memory structure is expected to remain valid for the life of the FT_Library object. Normally, you would call this function (followed by a call to FT_Add_Default_Modules or a series of calls to FT_Add_Module , and a call to FT_Set_Default_Properties ) instead of FT_Init_FreeType to initialize the FreeType library. Don't use FT_Done_FreeType but FT_Done_Library to destroy a library instance. input memory A handle to the original memory object. output alibrary A pointer to handle of a new library object. return FreeType error code. 0 means success. note See the discussion of reference counters in the description of FT_Reference_Library . FT_Done_Library \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_Done_Library ( FT_Library library ); Discard a given library object. This closes all drivers and discards all resource objects. input library A handle to the target library. return FreeType error code. 0 means success. note See the discussion of reference counters in the description of FT_Reference_Library . FT_Reference_Library \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_Reference_Library ( FT_Library library ); A counter gets initialized to 1 at the time an FT_Library structure is created. This function increments the counter. FT_Done_Library then only destroys a library if the counter is 1, otherwise it simply decrements the counter. This function helps in managing life-cycles of structures that reference FT_Library objects. input library A handle to a target library object. return FreeType error code. 0 means success. since 2.4.2 FT_Renderer \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_RendererRec_* FT_Renderer ; A handle to a given FreeType renderer. A renderer is a module in charge of converting a glyph's outline image to a bitmap. It supports a single glyph image format, and one or more target surface depths. FT_Renderer_Class \u00b6 Defined in FT_RENDER_H (freetype/ftrender.h). typedef struct FT_Renderer_Class_ { FT_Module_Class root; FT_Glyph_Format glyph_format; FT_Renderer_RenderFunc render_glyph; FT_Renderer_TransformFunc transform_glyph; FT_Renderer_GetCBoxFunc get_glyph_cbox; FT_Renderer_SetModeFunc set_mode; const FT_Raster_Funcs * raster_class; } FT_Renderer_Class ; The renderer module class descriptor. fields root The root FT_Module_Class fields. glyph_format The glyph image format this renderer handles. render_glyph A method used to render the image that is in a given glyph slot into a bitmap. transform_glyph A method used to transform the image that is in a given glyph slot. get_glyph_cbox A method used to access the glyph's cbox. set_mode A method used to pass additional parameters. raster_class For FT_GLYPH_FORMAT_OUTLINE renderers only. This is a pointer to its raster's class. FT_Get_Renderer \u00b6 Defined in FT_RENDER_H (freetype/ftrender.h). FT_EXPORT( FT_Renderer ) FT_Get_Renderer ( FT_Library library, FT_Glyph_Format format ); Retrieve the current renderer for a given glyph format. input library A handle to the library object. format The glyph format. return A renderer handle. 0 if none found. note An error will be returned if a module already exists by that name, or if the module requires a version of FreeType that is too great. To add a new renderer, simply use FT_Add_Module . To retrieve a renderer by its name, use FT_Get_Module . FT_Set_Renderer \u00b6 Defined in FT_RENDER_H (freetype/ftrender.h). FT_EXPORT( FT_Error ) FT_Set_Renderer ( FT_Library library, FT_Renderer renderer, FT_UInt num_params, FT_Parameter * parameters ); Set the current renderer to use, and set additional mode. inout library A handle to the library object. input renderer A handle to the renderer object. num_params The number of additional parameters. parameters Additional parameters. return FreeType error code. 0 means success. note In case of success, the renderer will be used to convert glyph images in the renderer's known format into bitmaps. This doesn't change the current renderer for other formats. Currently, no FreeType renderer module uses parameters ; you should thus always pass NULL as the value. FT_Set_Debug_Hook \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( void ) FT_Set_Debug_Hook ( FT_Library library, FT_UInt hook_index, FT_DebugHook_Func debug_hook ); Set a debug hook function for debugging the interpreter of a font format. While this is a public API function, an application needs access to FreeType's internal header files to do something useful. Have a look at the source code of the ttdebug FreeType demo program for an example of its usage. inout library A handle to the library object. input hook_index The index of the debug hook. You should use defined enumeration macros like FT_DEBUG_HOOK_TRUETYPE . debug_hook The function used to debug the interpreter. note Currently, four debug hook slots are available, but only one (for the TrueType interpreter) is defined. FT_Driver \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_DriverRec_* FT_Driver ; A handle to a given FreeType font driver object. A font driver is a module capable of creating faces from font files. FT_DebugHook_Func \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). typedef FT_Error (* FT_DebugHook_Func )( void * arg ); A drop-in replacement (or rather a wrapper) for the bytecode or charstring interpreter's main loop function. Its job is essentially to activate debug mode to enforce single-stepping, to call the main loop function to interpret the next opcode, and to show the changed context to the user. An example for such a main loop function is TT_RunIns (declared in FreeType's internal header file src/truetype/ttinterp.h ). Have a look at the source code of the ttdebug FreeType demo program for an example of a drop-in replacement. inout arg A typeless pointer, to be cast to the main loop function's data structure (which depends on the font module). For TrueType fonts it is bytecode interpreter's execution context, TT_ExecContext , which is declared in FreeType's internal header file tttypes.h . FT_DEBUG_HOOK_XXX \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). # define FT_DEBUG_HOOK_TRUETYPE 0 A list of named debug hook indices. values FT_DEBUG_HOOK_TRUETYPE This hook index identifies the TrueType bytecode debugger.","title":"Module Management"},{"location":"ft2-module_management.html#module-management","text":"","title":"Module Management"},{"location":"ft2-module_management.html#synopsis","text":"The definitions below are used to manage modules within FreeType. Internal and external modules can be added, upgraded, and removed at runtime. For example, an alternative renderer or proprietary font driver can be registered and prioritized. Additionally, some module properties can also be controlled. Here is a list of existing values of the module_name field in the FT_Module_Class structure. autofitter bdf cff gxvalid otvalid pcf pfr psaux pshinter psnames raster1 sfnt smooth truetype type1 type42 t1cid winfonts Note that the FreeType Cache sub-system is not a FreeType module.","title":"Synopsis"},{"location":"ft2-module_management.html#ft_module","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_ModuleRec_* FT_Module ; A handle to a given FreeType module object. 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FT_EXPORT( FT_Error ) FT_Remove_Module ( FT_Library library, FT_Module module ); Remove a given module from a library instance.","title":"FT_Remove_Module"},{"location":"ft2-module_management.html#ft_add_default_modules","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( void ) FT_Add_Default_Modules ( FT_Library library ); Add the set of default drivers to a given library object. 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FT_EXPORT( FT_Error ) FT_Property_Get ( FT_Library library, const FT_String * module_name, const FT_String * property_name, void * value ); Get a module's property value.","title":"FT_Property_Get"},{"location":"ft2-module_management.html#ft_set_default_properties","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( void ) FT_Set_Default_Properties ( FT_Library library ); If compilation option FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES is set, this function reads the FREETYPE_PROPERTIES environment variable to control driver properties. See section \u2018 Driver properties \u2019 for more. If the compilation option is not set, this function does nothing. FREETYPE_PROPERTIES has the following syntax form (broken here into multiple lines for better readability). ':' '=' ':' '=' ... Example: FREETYPE_PROPERTIES=truetype:interpreter-version=35 \\ cff:no-stem-darkening=0","title":"FT_Set_Default_Properties"},{"location":"ft2-module_management.html#ft_new_library","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_New_Library ( FT_Memory memory, FT_Library *alibrary ); This function is used to create a new FreeType library instance from a given memory object. It is thus possible to use libraries with distinct memory allocators within the same program. Note, however, that the used FT_Memory structure is expected to remain valid for the life of the FT_Library object. Normally, you would call this function (followed by a call to FT_Add_Default_Modules or a series of calls to FT_Add_Module , and a call to FT_Set_Default_Properties ) instead of FT_Init_FreeType to initialize the FreeType library. Don't use FT_Done_FreeType but FT_Done_Library to destroy a library instance.","title":"FT_New_Library"},{"location":"ft2-module_management.html#ft_done_library","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_Done_Library ( FT_Library library ); Discard a given library object. This closes all drivers and discards all resource objects.","title":"FT_Done_Library"},{"location":"ft2-module_management.html#ft_reference_library","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_Error ) FT_Reference_Library ( FT_Library library ); A counter gets initialized to 1 at the time an FT_Library structure is created. This function increments the counter. FT_Done_Library then only destroys a library if the counter is 1, otherwise it simply decrements the counter. This function helps in managing life-cycles of structures that reference FT_Library objects.","title":"FT_Reference_Library"},{"location":"ft2-module_management.html#ft_renderer","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_RendererRec_* FT_Renderer ; A handle to a given FreeType renderer. A renderer is a module in charge of converting a glyph's outline image to a bitmap. It supports a single glyph image format, and one or more target surface depths.","title":"FT_Renderer"},{"location":"ft2-module_management.html#ft_renderer_class","text":"Defined in FT_RENDER_H (freetype/ftrender.h). typedef struct FT_Renderer_Class_ { FT_Module_Class root; FT_Glyph_Format glyph_format; FT_Renderer_RenderFunc render_glyph; FT_Renderer_TransformFunc transform_glyph; FT_Renderer_GetCBoxFunc get_glyph_cbox; FT_Renderer_SetModeFunc set_mode; const FT_Raster_Funcs * raster_class; } FT_Renderer_Class ; The renderer module class descriptor.","title":"FT_Renderer_Class"},{"location":"ft2-module_management.html#ft_get_renderer","text":"Defined in FT_RENDER_H (freetype/ftrender.h). FT_EXPORT( FT_Renderer ) FT_Get_Renderer ( FT_Library library, FT_Glyph_Format format ); Retrieve the current renderer for a given glyph format.","title":"FT_Get_Renderer"},{"location":"ft2-module_management.html#ft_set_renderer","text":"Defined in FT_RENDER_H (freetype/ftrender.h). FT_EXPORT( FT_Error ) FT_Set_Renderer ( FT_Library library, FT_Renderer renderer, FT_UInt num_params, FT_Parameter * parameters ); Set the current renderer to use, and set additional mode.","title":"FT_Set_Renderer"},{"location":"ft2-module_management.html#ft_set_debug_hook","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( void ) FT_Set_Debug_Hook ( FT_Library library, FT_UInt hook_index, FT_DebugHook_Func debug_hook ); Set a debug hook function for debugging the interpreter of a font format. While this is a public API function, an application needs access to FreeType's internal header files to do something useful. Have a look at the source code of the ttdebug FreeType demo program for an example of its usage.","title":"FT_Set_Debug_Hook"},{"location":"ft2-module_management.html#ft_driver","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_DriverRec_* FT_Driver ; A handle to a given FreeType font driver object. A font driver is a module capable of creating faces from font files.","title":"FT_Driver"},{"location":"ft2-module_management.html#ft_debughook_func","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). typedef FT_Error (* FT_DebugHook_Func )( void * arg ); A drop-in replacement (or rather a wrapper) for the bytecode or charstring interpreter's main loop function. Its job is essentially to activate debug mode to enforce single-stepping, to call the main loop function to interpret the next opcode, and to show the changed context to the user. An example for such a main loop function is TT_RunIns (declared in FreeType's internal header file src/truetype/ttinterp.h ). Have a look at the source code of the ttdebug FreeType demo program for an example of a drop-in replacement.","title":"FT_DebugHook_Func"},{"location":"ft2-module_management.html#ft_debug_hook_xxx","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). # define FT_DEBUG_HOOK_TRUETYPE 0 A list of named debug hook indices.","title":"FT_DEBUG_HOOK_XXX"},{"location":"ft2-multiple_masters.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb Multiple Masters Multiple Masters \u00b6 Synopsis \u00b6 The following types and functions are used to manage Multiple Master fonts, i.e., the selection of specific design instances by setting design axis coordinates. Besides Adobe MM fonts, the interface supports Apple's TrueType GX and OpenType variation fonts. Some of the routines only work with Adobe MM fonts, others will work with all three types. They are similar enough that a consistent interface makes sense. For Adobe MM fonts, macro FT_IS_SFNT returns false. For GX and OpenType variation fonts, it returns true. FT_MM_Axis \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_MM_Axis_ { FT_String * name; FT_Long minimum; FT_Long maximum; } FT_MM_Axis ; A structure to model a given axis in design space for Multiple Masters fonts. This structure can't be used for TrueType GX or OpenType variation fonts. fields name The axis's name. minimum The axis's minimum design coordinate. maximum The axis's maximum design coordinate. FT_Multi_Master \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_Multi_Master_ { FT_UInt num_axis; FT_UInt num_designs; FT_MM_Axis axis[T1_MAX_MM_AXIS]; } FT_Multi_Master ; A structure to model the axes and space of a Multiple Masters font. This structure can't be used for TrueType GX or OpenType variation fonts. fields num_axis Number of axes. Cannot exceed 4. num_designs Number of designs; should be normally 2^num_axis even though the Type 1 specification strangely allows for intermediate designs to be present. This number cannot exceed 16. axis A table of axis descriptors. FT_Var_Axis \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_Var_Axis_ { FT_String * name; FT_Fixed minimum; FT_Fixed def; FT_Fixed maximum; FT_ULong tag; FT_UInt strid; } FT_Var_Axis ; A structure to model a given axis in design space for Multiple Masters, TrueType GX, and OpenType variation fonts. fields name The axis's name. Not always meaningful for TrueType GX or OpenType variation fonts. minimum The axis's minimum design coordinate. def The axis's default design coordinate. FreeType computes meaningful default values for Adobe MM fonts. maximum The axis's maximum design coordinate. tag The axis's tag (the equivalent to \u2018name\u2019 for TrueType GX and OpenType variation fonts). FreeType provides default values for Adobe MM fonts if possible. strid The axis name entry in the font's \u2018name\u2019 table. This is another (and often better) version of the \u2018name\u2019 field for TrueType GX or OpenType variation fonts. Not meaningful for Adobe MM fonts. note The fields minimum , def , and maximum are 16.16 fractional values for TrueType GX and OpenType variation fonts. For Adobe MM fonts, the values are whole numbers (i.e., the fractional part is zero). FT_Var_Named_Style \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_Var_Named_Style_ { FT_Fixed * coords; FT_UInt strid; FT_UInt psid; /* since 2.7.1 */ } FT_Var_Named_Style ; A structure to model a named instance in a TrueType GX or OpenType variation font. This structure can't be used for Adobe MM fonts. fields coords The design coordinates for this instance. This is an array with one entry for each axis. strid The entry in \u2018name\u2019 table identifying this instance. psid The entry in \u2018name\u2019 table identifying a PostScript name for this instance. Value 0xFFFF indicates a missing entry. FT_MM_Var \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_MM_Var_ { FT_UInt num_axis; FT_UInt num_designs; FT_UInt num_namedstyles; FT_Var_Axis * axis; FT_Var_Named_Style * namedstyle; } FT_MM_Var ; A structure to model the axes and space of an Adobe MM, TrueType GX, or OpenType variation font. Some fields are specific to one format and not to the others. fields num_axis The number of axes. The maximum value is 4 for Adobe MM fonts; no limit in TrueType GX or OpenType variation fonts. num_designs The number of designs; should be normally 2^num_axis for Adobe MM fonts. Not meaningful for TrueType GX or OpenType variation fonts (where every glyph could have a different number of designs). num_namedstyles The number of named styles; a \u2018named style\u2019 is a tuple of design coordinates that has a string ID (in the \u2018name\u2019 table) associated with it. The font can tell the user that, for example, [Weight=1.5,Width=1.1] is \u2018Bold\u2019. Another name for \u2018named style\u2019 is \u2018named instance\u2019. For Adobe Multiple Masters fonts, this value is always zero because the format does not support named styles. axis An axis descriptor table. TrueType GX and OpenType variation fonts contain slightly more data than Adobe MM fonts. Memory management of this pointer is done internally by FreeType. namedstyle A named style (instance) table. Only meaningful for TrueType GX and OpenType variation fonts. Memory management of this pointer is done internally by FreeType. FT_Get_Multi_Master \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Multi_Master ( FT_Face face, FT_Multi_Master *amaster ); Retrieve a variation descriptor of a given Adobe MM font. This function can't be used with TrueType GX or OpenType variation fonts. input face A handle to the source face. output amaster The Multiple Masters descriptor. return FreeType error code. 0 means success. FT_Get_MM_Var \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_MM_Var ( FT_Face face, FT_MM_Var * *amaster ); Retrieve a variation descriptor for a given font. This function works with all supported variation formats. input face A handle to the source face. output amaster The variation descriptor. Allocates a data structure, which the user must deallocate with a call to FT_Done_MM_Var after use. return FreeType error code. 0 means success. FT_Done_MM_Var \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Done_MM_Var ( FT_Library library, FT_MM_Var *amaster ); Free the memory allocated by FT_Get_MM_Var . input library A handle of the face's parent library object that was used in the call to FT_Get_MM_Var to create amaster . return FreeType error code. 0 means success. FT_Set_MM_Design_Coordinates \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_MM_Design_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Long * coords ); For Adobe MM fonts, choose an interpolated font design through design coordinates. This function can't be used with TrueType GX or OpenType variation fonts. inout face A handle to the source face. input num_coords The number of available design coordinates. If it is larger than the number of axes, ignore the excess values. If it is smaller than the number of axes, use default values for the remaining axes. coords An array of design coordinates. return FreeType error code. 0 means success. note [Since 2.8.1] To reset all axes to the default values, call the function with num_coords set to zero and coords set to NULL . [Since 2.9] If num_coords is larger than zero, this function sets the FT_FACE_FLAG_VARIATION bit in FT_Face 's face_flags field (i.e., FT_IS_VARIATION will return true). If num_coords is zero, this bit flag gets unset. FT_Set_Var_Design_Coordinates \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_Var_Design_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); Choose an interpolated font design through design coordinates. This function works with all supported variation formats. inout face A handle to the source face. input num_coords The number of available design coordinates. If it is larger than the number of axes, ignore the excess values. If it is smaller than the number of axes, use default values for the remaining axes. coords An array of design coordinates. return FreeType error code. 0 means success. note The design coordinates are 16.16 fractional values for TrueType GX and OpenType variation fonts. For Adobe MM fonts, the values are supposed to be whole numbers (i.e., the fractional part is zero). [Since 2.8.1] To reset all axes to the default values, call the function with num_coords set to zero and coords set to NULL . [Since 2.9] \u2018Default values\u2019 means the currently selected named instance (or the base font if no named instance is selected). [Since 2.9] If num_coords is larger than zero, this function sets the FT_FACE_FLAG_VARIATION bit in FT_Face 's face_flags field (i.e., FT_IS_VARIATION will return true). If num_coords is zero, this bit flag gets unset. FT_Get_Var_Design_Coordinates \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Var_Design_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); Get the design coordinates of the currently selected interpolated font. This function works with all supported variation formats. input face A handle to the source face. num_coords The number of design coordinates to retrieve. If it is larger than the number of axes, set the excess values to 0. output coords The design coordinates array. return FreeType error code. 0 means success. note The design coordinates are 16.16 fractional values for TrueType GX and OpenType variation fonts. For Adobe MM fonts, the values are whole numbers (i.e., the fractional part is zero). since 2.7.1 FT_Set_MM_Blend_Coordinates \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_MM_Blend_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); Choose an interpolated font design through normalized blend coordinates. This function works with all supported variation formats. inout face A handle to the source face. input num_coords The number of available design coordinates. If it is larger than the number of axes, ignore the excess values. If it is smaller than the number of axes, use default values for the remaining axes. coords The design coordinates array. Each element is a 16.16 fractional value and must be between 0 and 1.0 for Adobe MM fonts, and between -1.0 and 1.0 for TrueType GX and OpenType variation fonts. return FreeType error code. 0 means success. note [Since 2.8.1] To reset all axes to the default values, call the function with num_coords set to zero and coords set to NULL . [Since 2.9] \u2018Default values\u2019 means the currently selected named instance (or the base font if no named instance is selected). [Since 2.9] If num_coords is larger than zero, this function sets the FT_FACE_FLAG_VARIATION bit in FT_Face 's face_flags field (i.e., FT_IS_VARIATION will return true). If num_coords is zero, this bit flag gets unset. FT_Get_MM_Blend_Coordinates \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_MM_Blend_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); Get the normalized blend coordinates of the currently selected interpolated font. This function works with all supported variation formats. input face A handle to the source face. num_coords The number of normalized blend coordinates to retrieve. If it is larger than the number of axes, set the excess values to 0.5 for Adobe MM fonts, and to 0 for TrueType GX and OpenType variation fonts. output coords The normalized blend coordinates array (as 16.16 fractional values). return FreeType error code. 0 means success. since 2.7.1 FT_Set_Var_Blend_Coordinates \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_Var_Blend_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); This is another name of FT_Set_MM_Blend_Coordinates . FT_Get_Var_Blend_Coordinates \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Var_Blend_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); This is another name of FT_Get_MM_Blend_Coordinates . since 2.7.1 FT_Set_MM_WeightVector \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_MM_WeightVector ( FT_Face face, FT_UInt len, FT_Fixed * weightvector ); For Adobe MM fonts, choose an interpolated font design by directly setting the weight vector. This function can't be used with TrueType GX or OpenType variation fonts. inout face A handle to the source face. input len The length of the weight vector array. If it is larger than the number of designs, the extra values are ignored. If it is less than the number of designs, the remaining values are set to zero. weightvector An array representing the weight vector. return FreeType error code. 0 means success. note Adobe Multiple Master fonts limit the number of designs, and thus the length of the weight vector to 16 elements. If len is larger than zero, this function sets the FT_FACE_FLAG_VARIATION bit in FT_Face 's face_flags field (i.e., FT_IS_VARIATION will return true). If len is zero, this bit flag is unset and the weight vector array is reset to the default values. The Adobe documentation also states that the values in the WeightVector array must total 1.0 \u00b1 0.001. In practice this does not seem to be enforced, so is not enforced here, either. since 2.10 FT_Get_MM_WeightVector \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_MM_WeightVector ( FT_Face face, FT_UInt * len, FT_Fixed * weightvector ); For Adobe MM fonts, retrieve the current weight vector of the font. This function can't be used with TrueType GX or OpenType variation fonts. inout face A handle to the source face. len A pointer to the size of the array to be filled. If the size of the array is less than the number of designs, FT_Err_Invalid_Argument is returned, and len is set to the required size (the number of designs). If the size of the array is greater than the number of designs, the remaining entries are set to 0. On successful completion, len is set to the number of designs (i.e., the number of values written to the array). output weightvector An array to be filled. return FreeType error code. 0 means success. note Adobe Multiple Master fonts limit the number of designs, and thus the length of the WeightVector to 16. since 2.10 FT_VAR_AXIS_FLAG_XXX \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). # define FT_VAR_AXIS_FLAG_HIDDEN 1 A list of bit flags used in the return value of FT_Get_Var_Axis_Flags . values FT_VAR_AXIS_FLAG_HIDDEN The variation axis should not be exposed to user interfaces. since 2.8.1 FT_Get_Var_Axis_Flags \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Var_Axis_Flags ( FT_MM_Var * master, FT_UInt axis_index, FT_UInt * flags ); Get the \u2018flags\u2019 field of an OpenType Variation Axis Record. Not meaningful for Adobe MM fonts ( *flags is always zero). input master The variation descriptor. axis_index The index of the requested variation axis. output flags The \u2018flags\u2019 field. See FT_VAR_AXIS_FLAG_XXX for possible values. return FreeType error code. 0 means success. since 2.8.1 FT_Set_Named_Instance \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_Named_Instance ( FT_Face face, FT_UInt instance_index ); Set or change the current named instance. input face A handle to the source face. instance_index The index of the requested instance, starting with value 1. If set to value 0, FreeType switches to font access without a named instance. return FreeType error code. 0 means success. note The function uses the value of instance_index to set bits 16-30 of the face's face_index field. It also resets any variation applied to the font, and the FT_FACE_FLAG_VARIATION bit of the face's face_flags field gets reset to zero (i.e., FT_IS_VARIATION will return false). For Adobe MM fonts (which don't have named instances) this function simply resets the current face to the default instance. since 2.9 FT_Get_Default_Named_Instance \u00b6 Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Default_Named_Instance ( FT_Face face, FT_UInt *instance_index ); Retrieve the index of the default named instance, to be used with FT_Set_Named_Instance . The default instance of a variation font is that instance for which the nth axis coordinate is equal to axis[n].def (as specified in the FT_MM_Var structure), with n covering all axes. FreeType synthesizes a named instance for the default instance if the font does not contain such an entry. input face A handle to the source face. output instance_index The index of the default named instance. return FreeType error code. 0 means success. note For Adobe MM fonts (which don't have named instances) this function always returns zero for instance_index . since 2.13.1","title":"Multiple Masters"},{"location":"ft2-multiple_masters.html#multiple-masters","text":"","title":"Multiple Masters"},{"location":"ft2-multiple_masters.html#synopsis","text":"The following types and functions are used to manage Multiple Master fonts, i.e., the selection of specific design instances by setting design axis coordinates. Besides Adobe MM fonts, the interface supports Apple's TrueType GX and OpenType variation fonts. Some of the routines only work with Adobe MM fonts, others will work with all three types. They are similar enough that a consistent interface makes sense. For Adobe MM fonts, macro FT_IS_SFNT returns false. For GX and OpenType variation fonts, it returns true.","title":"Synopsis"},{"location":"ft2-multiple_masters.html#ft_mm_axis","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_MM_Axis_ { FT_String * name; FT_Long minimum; FT_Long maximum; } FT_MM_Axis ; A structure to model a given axis in design space for Multiple Masters fonts. This structure can't be used for TrueType GX or OpenType variation fonts.","title":"FT_MM_Axis"},{"location":"ft2-multiple_masters.html#ft_multi_master","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_Multi_Master_ { FT_UInt num_axis; FT_UInt num_designs; FT_MM_Axis axis[T1_MAX_MM_AXIS]; } FT_Multi_Master ; A structure to model the axes and space of a Multiple Masters font. This structure can't be used for TrueType GX or OpenType variation fonts.","title":"FT_Multi_Master"},{"location":"ft2-multiple_masters.html#ft_var_axis","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_Var_Axis_ { FT_String * name; FT_Fixed minimum; FT_Fixed def; FT_Fixed maximum; FT_ULong tag; FT_UInt strid; } FT_Var_Axis ; A structure to model a given axis in design space for Multiple Masters, TrueType GX, and OpenType variation fonts.","title":"FT_Var_Axis"},{"location":"ft2-multiple_masters.html#ft_var_named_style","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_Var_Named_Style_ { FT_Fixed * coords; FT_UInt strid; FT_UInt psid; /* since 2.7.1 */ } FT_Var_Named_Style ; A structure to model a named instance in a TrueType GX or OpenType variation font. This structure can't be used for Adobe MM fonts.","title":"FT_Var_Named_Style"},{"location":"ft2-multiple_masters.html#ft_mm_var","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). typedef struct FT_MM_Var_ { FT_UInt num_axis; FT_UInt num_designs; FT_UInt num_namedstyles; FT_Var_Axis * axis; FT_Var_Named_Style * namedstyle; } FT_MM_Var ; A structure to model the axes and space of an Adobe MM, TrueType GX, or OpenType variation font. Some fields are specific to one format and not to the others.","title":"FT_MM_Var"},{"location":"ft2-multiple_masters.html#ft_get_multi_master","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Multi_Master ( FT_Face face, FT_Multi_Master *amaster ); Retrieve a variation descriptor of a given Adobe MM font. This function can't be used with TrueType GX or OpenType variation fonts.","title":"FT_Get_Multi_Master"},{"location":"ft2-multiple_masters.html#ft_get_mm_var","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_MM_Var ( FT_Face face, FT_MM_Var * *amaster ); Retrieve a variation descriptor for a given font. This function works with all supported variation formats.","title":"FT_Get_MM_Var"},{"location":"ft2-multiple_masters.html#ft_done_mm_var","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Done_MM_Var ( FT_Library library, FT_MM_Var *amaster ); Free the memory allocated by FT_Get_MM_Var .","title":"FT_Done_MM_Var"},{"location":"ft2-multiple_masters.html#ft_set_mm_design_coordinates","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_MM_Design_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Long * coords ); For Adobe MM fonts, choose an interpolated font design through design coordinates. This function can't be used with TrueType GX or OpenType variation fonts.","title":"FT_Set_MM_Design_Coordinates"},{"location":"ft2-multiple_masters.html#ft_set_var_design_coordinates","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_Var_Design_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); Choose an interpolated font design through design coordinates. This function works with all supported variation formats.","title":"FT_Set_Var_Design_Coordinates"},{"location":"ft2-multiple_masters.html#ft_get_var_design_coordinates","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Var_Design_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); Get the design coordinates of the currently selected interpolated font. This function works with all supported variation formats.","title":"FT_Get_Var_Design_Coordinates"},{"location":"ft2-multiple_masters.html#ft_set_mm_blend_coordinates","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_MM_Blend_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); Choose an interpolated font design through normalized blend coordinates. This function works with all supported variation formats.","title":"FT_Set_MM_Blend_Coordinates"},{"location":"ft2-multiple_masters.html#ft_get_mm_blend_coordinates","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_MM_Blend_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); Get the normalized blend coordinates of the currently selected interpolated font. This function works with all supported variation formats.","title":"FT_Get_MM_Blend_Coordinates"},{"location":"ft2-multiple_masters.html#ft_set_var_blend_coordinates","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_Var_Blend_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); This is another name of FT_Set_MM_Blend_Coordinates .","title":"FT_Set_Var_Blend_Coordinates"},{"location":"ft2-multiple_masters.html#ft_get_var_blend_coordinates","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Var_Blend_Coordinates ( FT_Face face, FT_UInt num_coords, FT_Fixed * coords ); This is another name of FT_Get_MM_Blend_Coordinates .","title":"FT_Get_Var_Blend_Coordinates"},{"location":"ft2-multiple_masters.html#ft_set_mm_weightvector","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_MM_WeightVector ( FT_Face face, FT_UInt len, FT_Fixed * weightvector ); For Adobe MM fonts, choose an interpolated font design by directly setting the weight vector. This function can't be used with TrueType GX or OpenType variation fonts.","title":"FT_Set_MM_WeightVector"},{"location":"ft2-multiple_masters.html#ft_get_mm_weightvector","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_MM_WeightVector ( FT_Face face, FT_UInt * len, FT_Fixed * weightvector ); For Adobe MM fonts, retrieve the current weight vector of the font. This function can't be used with TrueType GX or OpenType variation fonts.","title":"FT_Get_MM_WeightVector"},{"location":"ft2-multiple_masters.html#ft_var_axis_flag_xxx","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). # define FT_VAR_AXIS_FLAG_HIDDEN 1 A list of bit flags used in the return value of FT_Get_Var_Axis_Flags .","title":"FT_VAR_AXIS_FLAG_XXX"},{"location":"ft2-multiple_masters.html#ft_get_var_axis_flags","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Var_Axis_Flags ( FT_MM_Var * master, FT_UInt axis_index, FT_UInt * flags ); Get the \u2018flags\u2019 field of an OpenType Variation Axis Record. Not meaningful for Adobe MM fonts ( *flags is always zero).","title":"FT_Get_Var_Axis_Flags"},{"location":"ft2-multiple_masters.html#ft_set_named_instance","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Set_Named_Instance ( FT_Face face, FT_UInt instance_index ); Set or change the current named instance.","title":"FT_Set_Named_Instance"},{"location":"ft2-multiple_masters.html#ft_get_default_named_instance","text":"Defined in FT_MULTIPLE_MASTERS_H (freetype/ftmm.h). FT_EXPORT( FT_Error ) FT_Get_Default_Named_Instance ( FT_Face face, FT_UInt *instance_index ); Retrieve the index of the default named instance, to be used with FT_Set_Named_Instance . The default instance of a variation font is that instance for which the nth axis coordinate is equal to axis[n].def (as specified in the FT_MM_Var structure), with n covering all axes. FreeType synthesizes a named instance for the default instance if the font does not contain such an entry.","title":"FT_Get_Default_Named_Instance"},{"location":"ft2-ot_svg_driver.html","text":"FreeType \u00bb Docs \u00bb Controlling FreeType Modules \u00bb The SVG driver The SVG driver \u00b6 Synopsis \u00b6 By default, FreeType can only load the \u2018SVG \u2019 table of OpenType fonts if configuration macro FT_CONFIG_OPTION_SVG is defined. To make it render SVG glyphs, an external SVG rendering library is needed. All details on the interface between FreeType and the external library via function hooks can be found in section \u2018 OpenType SVG Fonts \u2019. The OT-SVG driver's module name is \u2018ot-svg\u2019; it supports a single property called svg-hooks , documented below in the \u2018 Driver properties \u2019 section.","title":"The SVG driver"},{"location":"ft2-ot_svg_driver.html#the-svg-driver","text":"","title":"The SVG driver"},{"location":"ft2-ot_svg_driver.html#synopsis","text":"By default, FreeType can only load the \u2018SVG \u2019 table of OpenType fonts if configuration macro FT_CONFIG_OPTION_SVG is defined. To make it render SVG glyphs, an external SVG rendering library is needed. All details on the interface between FreeType and the external library via function hooks can be found in section \u2018 OpenType SVG Fonts \u2019. The OT-SVG driver's module name is \u2018ot-svg\u2019; it supports a single property called svg-hooks , documented below in the \u2018 Driver properties \u2019 section.","title":"Synopsis"},{"location":"ft2-ot_validation.html","text":"FreeType \u00bb Docs \u00bb Miscellaneous \u00bb OpenType Validation OpenType Validation \u00b6 Synopsis \u00b6 This section contains the declaration of functions to validate some OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH). FT_OpenType_Validate \u00b6 Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h). FT_EXPORT( FT_Error ) FT_OpenType_Validate ( FT_Face face, FT_UInt validation_flags, FT_Bytes *BASE_table, FT_Bytes *GDEF_table, FT_Bytes *GPOS_table, FT_Bytes *GSUB_table, FT_Bytes *JSTF_table ); Validate various OpenType tables to assure that all offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming). input face A handle to the input face. validation_flags A bit field that specifies the tables to be validated. See FT_VALIDATE_OTXXX for possible values. output BASE_table A pointer to the BASE table. GDEF_table A pointer to the GDEF table. GPOS_table A pointer to the GPOS table. GSUB_table A pointer to the GSUB table. JSTF_table A pointer to the JSTF table. return FreeType error code. 0 means success. note This function only works with OpenType fonts, returning an error otherwise. After use, the application should deallocate the five tables with FT_OpenType_Free . A NULL value indicates that the table either doesn't exist in the font, or the application hasn't asked for validation. FT_OpenType_Free \u00b6 Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h). FT_EXPORT( void ) FT_OpenType_Free ( FT_Face face, FT_Bytes table ); Free the buffer allocated by OpenType validator. input face A handle to the input face. table The pointer to the buffer that is allocated by FT_OpenType_Validate . note This function must be used to free the buffer allocated by FT_OpenType_Validate only. FT_VALIDATE_OTXXX \u00b6 Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h). # define FT_VALIDATE_BASE 0x0100 # define FT_VALIDATE_GDEF 0x0200 # define FT_VALIDATE_GPOS 0x0400 # define FT_VALIDATE_GSUB 0x0800 # define FT_VALIDATE_JSTF 0x1000 # define FT_VALIDATE_MATH 0x2000 # define FT_VALIDATE_OT ( FT_VALIDATE_BASE | \\ FT_VALIDATE_GDEF | \\ FT_VALIDATE_GPOS | \\ FT_VALIDATE_GSUB | \\ FT_VALIDATE_JSTF | \\ FT_VALIDATE_MATH ) A list of bit-field constants used with FT_OpenType_Validate to indicate which OpenType tables should be validated. values FT_VALIDATE_BASE Validate BASE table. FT_VALIDATE_GDEF Validate GDEF table. FT_VALIDATE_GPOS Validate GPOS table. FT_VALIDATE_GSUB Validate GSUB table. FT_VALIDATE_JSTF Validate JSTF table. FT_VALIDATE_MATH Validate MATH table. FT_VALIDATE_OT Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).","title":"OpenType Validation"},{"location":"ft2-ot_validation.html#opentype-validation","text":"","title":"OpenType Validation"},{"location":"ft2-ot_validation.html#synopsis","text":"This section contains the declaration of functions to validate some OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).","title":"Synopsis"},{"location":"ft2-ot_validation.html#ft_opentype_validate","text":"Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h). FT_EXPORT( FT_Error ) FT_OpenType_Validate ( FT_Face face, FT_UInt validation_flags, FT_Bytes *BASE_table, FT_Bytes *GDEF_table, FT_Bytes *GPOS_table, FT_Bytes *GSUB_table, FT_Bytes *JSTF_table ); Validate various OpenType tables to assure that all offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming).","title":"FT_OpenType_Validate"},{"location":"ft2-ot_validation.html#ft_opentype_free","text":"Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h). FT_EXPORT( void ) FT_OpenType_Free ( FT_Face face, FT_Bytes table ); Free the buffer allocated by OpenType validator.","title":"FT_OpenType_Free"},{"location":"ft2-ot_validation.html#ft_validate_otxxx","text":"Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h). # define FT_VALIDATE_BASE 0x0100 # define FT_VALIDATE_GDEF 0x0200 # define FT_VALIDATE_GPOS 0x0400 # define FT_VALIDATE_GSUB 0x0800 # define FT_VALIDATE_JSTF 0x1000 # define FT_VALIDATE_MATH 0x2000 # define FT_VALIDATE_OT ( FT_VALIDATE_BASE | \\ FT_VALIDATE_GDEF | \\ FT_VALIDATE_GPOS | \\ FT_VALIDATE_GSUB | \\ FT_VALIDATE_JSTF | \\ FT_VALIDATE_MATH ) A list of bit-field constants used with FT_OpenType_Validate to indicate which OpenType tables should be validated.","title":"FT_VALIDATE_OTXXX"},{"location":"ft2-other_api_data.html","text":"FreeType \u00bb Docs \u00bb Core API \u00bb Other API Data Other API Data \u00b6 Synopsis \u00b6 Other structures, enumerations, and macros. Deprecated functions are also listed here. FT_Face_Internal \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Face_InternalRec_* FT_Face_Internal ; An opaque handle to an FT_Face_InternalRec structure that models the private data of a given FT_Face object. This structure might change between releases of FreeType 2 and is not generally available to client applications. FT_Size_Internal \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Size_InternalRec_* FT_Size_Internal ; An opaque handle to an FT_Size_InternalRec structure, used to model private data of a given FT_Size object. FT_Slot_Internal \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Slot_InternalRec_* FT_Slot_Internal ; An opaque handle to an FT_Slot_InternalRec structure, used to model private data of a given FT_GlyphSlot object. FT_SubGlyph \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_SubGlyphRec_* FT_SubGlyph ; The subglyph structure is an internal object used to describe subglyphs (for example, in the case of composites). note The subglyph implementation is not part of the high-level API, hence the forward structure declaration. You can however retrieve subglyph information with FT_Get_SubGlyph_Info . FT_HAS_FAST_GLYPHS \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_FAST_GLYPHS ( face ) 0 Deprecated. FT_Face_CheckTrueTypePatents \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Bool ) FT_Face_CheckTrueTypePatents ( FT_Face face ); Deprecated, does nothing. input face A face handle. return Always returns false. note Since May 2010, TrueType hinting is no longer patented. since 2.3.5 FT_Face_SetUnpatentedHinting \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Bool ) FT_Face_SetUnpatentedHinting ( FT_Face face, FT_Bool value ); Deprecated, does nothing. input face A face handle. value New boolean setting. return Always returns false. note Since May 2010, TrueType hinting is no longer patented. since 2.3.5","title":"Other API Data"},{"location":"ft2-other_api_data.html#other-api-data","text":"","title":"Other API Data"},{"location":"ft2-other_api_data.html#synopsis","text":"Other structures, enumerations, and macros. Deprecated functions are also listed here.","title":"Synopsis"},{"location":"ft2-other_api_data.html#ft_face_internal","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Face_InternalRec_* FT_Face_Internal ; An opaque handle to an FT_Face_InternalRec structure that models the private data of a given FT_Face object. This structure might change between releases of FreeType 2 and is not generally available to client applications.","title":"FT_Face_Internal"},{"location":"ft2-other_api_data.html#ft_size_internal","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Size_InternalRec_* FT_Size_Internal ; An opaque handle to an FT_Size_InternalRec structure, used to model private data of a given FT_Size object.","title":"FT_Size_Internal"},{"location":"ft2-other_api_data.html#ft_slot_internal","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Slot_InternalRec_* FT_Slot_Internal ; An opaque handle to an FT_Slot_InternalRec structure, used to model private data of a given FT_GlyphSlot object.","title":"FT_Slot_Internal"},{"location":"ft2-other_api_data.html#ft_subglyph","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_SubGlyphRec_* FT_SubGlyph ; The subglyph structure is an internal object used to describe subglyphs (for example, in the case of composites).","title":"FT_SubGlyph"},{"location":"ft2-other_api_data.html#ft_has_fast_glyphs","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). # define FT_HAS_FAST_GLYPHS ( face ) 0 Deprecated.","title":"FT_HAS_FAST_GLYPHS"},{"location":"ft2-other_api_data.html#ft_face_checktruetypepatents","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Bool ) FT_Face_CheckTrueTypePatents ( FT_Face face ); Deprecated, does nothing.","title":"FT_Face_CheckTrueTypePatents"},{"location":"ft2-other_api_data.html#ft_face_setunpatentedhinting","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Bool ) FT_Face_SetUnpatentedHinting ( FT_Face face, FT_Bool value ); Deprecated, does nothing.","title":"FT_Face_SetUnpatentedHinting"},{"location":"ft2-outline_processing.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb Outline Processing Outline Processing \u00b6 Synopsis \u00b6 This section contains routines used to create and destroy scalable glyph images known as \u2018outlines\u2019. These can also be measured, transformed, and converted into bitmaps and pixmaps. FT_Outline \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Outline_ { short n_contours; /* number of contours in glyph */ short n_points; /* number of points in the glyph */ FT_Vector * points; /* the outline's points */ char * tags; /* the points flags */ short * contours; /* the contour end points */ int flags; /* outline masks */ } FT_Outline ; This structure is used to describe an outline to the scan-line converter. fields n_contours The number of contours in the outline. n_points The number of points in the outline. points A pointer to an array of n_points FT_Vector elements, giving the outline's point coordinates. tags A pointer to an array of n_points chars, giving each outline point's type. If bit 0 is unset, the point is \u2018off\u2019 the curve, i.e., a Bezier control point, while it is \u2018on\u2019 if set. Bit 1 is meaningful for \u2018off\u2019 points only. If set, it indicates a third-order Bezier arc control point; and a second-order control point if unset. If bit 2 is set, bits 5-7 contain the drop-out mode (as defined in the OpenType specification; the value is the same as the argument to the \u2018SCANMODE\u2019 instruction). Bits 3 and 4 are reserved for internal purposes. contours An array of n_contours shorts, giving the end point of each contour within the outline. For example, the first contour is defined by the points \u20180\u2019 to contours[0] , the second one is defined by the points contours[0]+1 to contours[1] , etc. flags A set of bit flags used to characterize the outline and give hints to the scan-converter and hinter on how to convert/grid-fit it. See FT_OUTLINE_XXX . note The B/W rasterizer only checks bit 2 in the tags array for the first point of each contour. The drop-out mode as given with FT_OUTLINE_IGNORE_DROPOUTS , FT_OUTLINE_SMART_DROPOUTS , and FT_OUTLINE_INCLUDE_STUBS in flags is then overridden. FT_Outline_New \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_New ( FT_Library library, FT_UInt numPoints, FT_Int numContours, FT_Outline *anoutline ); Create a new outline of a given size. input library A handle to the library object from where the outline is allocated. Note however that the new outline will not necessarily be freed , when destroying the library, by FT_Done_FreeType . numPoints The maximum number of points within the outline. Must be smaller than or equal to 0xFFFF (65535). numContours The maximum number of contours within the outline. This value must be in the range 0 to numPoints . output anoutline A handle to the new outline. return FreeType error code. 0 means success. note The reason why this function takes a library parameter is simply to use the library's memory allocator. FT_Outline_Done \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Done ( FT_Library library, FT_Outline * outline ); Destroy an outline created with FT_Outline_New . input library A handle of the library object used to allocate the outline. outline A pointer to the outline object to be discarded. return FreeType error code. 0 means success. note If the outline's \u2018owner\u2019 field is not set, only the outline descriptor will be released. FT_Outline_Copy \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Copy ( const FT_Outline * source, FT_Outline *target ); Copy an outline into another one. Both objects must have the same sizes (number of points & number of contours) when this function is called. input source A handle to the source outline. output target A handle to the target outline. return FreeType error code. 0 means success. FT_Outline_Translate \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( void ) FT_Outline_Translate ( const FT_Outline * outline, FT_Pos xOffset, FT_Pos yOffset ); Apply a simple translation to the points of an outline. inout outline A pointer to the target outline descriptor. input xOffset The horizontal offset. yOffset The vertical offset. FT_Outline_Transform \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( void ) FT_Outline_Transform ( const FT_Outline * outline, const FT_Matrix * matrix ); Apply a simple 2x2 matrix to all of an outline's points. Useful for applying rotations, slanting, flipping, etc. inout outline A pointer to the target outline descriptor. input matrix A pointer to the transformation matrix. note You can use FT_Outline_Translate if you need to translate the outline's points. FT_Outline_Embolden \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Embolden ( FT_Outline * outline, FT_Pos strength ); Embolden an outline. The new outline will be at most 4 times strength pixels wider and higher. You may think of the left and bottom borders as unchanged. Negative strength values to reduce the outline thickness are possible also. inout outline A handle to the target outline. input strength How strong the glyph is emboldened. Expressed in 26.6 pixel format. return FreeType error code. 0 means success. note The used algorithm to increase or decrease the thickness of the glyph doesn't change the number of points; this means that certain situations like acute angles or intersections are sometimes handled incorrectly. If you need \u2018better\u2019 metrics values you should call FT_Outline_Get_CBox or FT_Outline_Get_BBox . To get meaningful results, font scaling values must be set with functions like FT_Set_Char_Size before calling FT_Render_Glyph. example FT_Load_Glyph( face, index, FT_LOAD_DEFAULT ); if ( face->glyph->format == FT_GLYPH_FORMAT_OUTLINE ) FT_Outline_Embolden( &face->glyph->outline, strength ); FT_Outline_EmboldenXY \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_EmboldenXY ( FT_Outline * outline, FT_Pos xstrength, FT_Pos ystrength ); Embolden an outline. The new outline will be xstrength pixels wider and ystrength pixels higher. Otherwise, it is similar to FT_Outline_Embolden , which uses the same strength in both directions. since 2.4.10 FT_Outline_Reverse \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( void ) FT_Outline_Reverse ( FT_Outline * outline ); Reverse the drawing direction of an outline. This is used to ensure consistent fill conventions for mirrored glyphs. inout outline A pointer to the target outline descriptor. note This function toggles the bit flag FT_OUTLINE_REVERSE_FILL in the outline's flags field. It shouldn't be used by a normal client application, unless it knows what it is doing. FT_Outline_Check \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Check ( FT_Outline * outline ); Check the contents of an outline descriptor. input outline A handle to a source outline. return FreeType error code. 0 means success. note An empty outline, or an outline with a single point only is also valid. FT_Outline_Get_CBox \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( void ) FT_Outline_Get_CBox ( const FT_Outline * outline, FT_BBox *acbox ); Return an outline's \u2018control box\u2019. The control box encloses all the outline's points, including Bezier control points. Though it coincides with the exact bounding box for most glyphs, it can be slightly larger in some situations (like when rotating an outline that contains Bezier outside arcs). Computing the control box is very fast, while getting the bounding box can take much more time as it needs to walk over all segments and arcs in the outline. To get the latter, you can use the \u2018ftbbox\u2019 component, which is dedicated to this single task. input outline A pointer to the source outline descriptor. output acbox The outline's control box. note See FT_Glyph_Get_CBox for a discussion of tricky fonts. FT_Outline_Get_BBox \u00b6 Defined in FT_BBOX_H (freetype/ftbbox.h). FT_EXPORT( FT_Error ) FT_Outline_Get_BBox ( FT_Outline * outline, FT_BBox *abbox ); Compute the exact bounding box of an outline. This is slower than computing the control box. However, it uses an advanced algorithm that returns very quickly when the two boxes coincide. Otherwise, the outline Bezier arcs are traversed to extract their extrema. input outline A pointer to the source outline. output abbox The outline's exact bounding box. return FreeType error code. 0 means success. note If the font is tricky and the glyph has been loaded with FT_LOAD_NO_SCALE , the resulting BBox is meaningless. To get reasonable values for the BBox it is necessary to load the glyph at a large ppem value (so that the hinting instructions can properly shift and scale the subglyphs), then extracting the BBox, which can be eventually converted back to font units. FT_Outline_Get_Bitmap \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Get_Bitmap ( FT_Library library, FT_Outline * outline, const FT_Bitmap *abitmap ); Render an outline within a bitmap. The outline's image is simply OR-ed to the target bitmap. input library A handle to a FreeType library object. outline A pointer to the source outline descriptor. inout abitmap A pointer to the target bitmap descriptor. return FreeType error code. 0 means success. note This function does not create the bitmap, it only renders an outline image within the one you pass to it! Consequently, the various fields in abitmap should be set accordingly. It will use the raster corresponding to the default glyph format. The value of the num_grays field in abitmap is ignored. If you select the gray-level rasterizer, and you want less than 256 gray levels, you have to use FT_Outline_Render directly. FT_Outline_Render \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Render ( FT_Library library, FT_Outline * outline, FT_Raster_Params * params ); Render an outline within a bitmap using the current scan-convert. input library A handle to a FreeType library object. outline A pointer to the source outline descriptor. inout params A pointer to an FT_Raster_Params structure used to describe the rendering operation. return FreeType error code. 0 means success. note This advanced function uses FT_Raster_Params as an argument. The field params.source will be set to outline before the scan converter is called, which means that the value you give to it is actually ignored. Either params.target must point to preallocated bitmap, or FT_RASTER_FLAG_DIRECT must be set in params.flags allowing FreeType rasterizer to be used for direct composition, translucency, etc. See FT_Raster_Params for more details. FT_Outline_Decompose \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Decompose ( FT_Outline * outline, const FT_Outline_Funcs * func_interface, void * user ); Walk over an outline's structure to decompose it into individual segments and Bezier arcs. This function also emits \u2018move to\u2019 operations to indicate the start of new contours in the outline. input outline A pointer to the source target. func_interface A table of \u2018emitters\u2019, i.e., function pointers called during decomposition to indicate path operations. inout user A typeless pointer that is passed to each emitter during the decomposition. It can be used to store the state during the decomposition. return FreeType error code. 0 means success. note Degenerate contours, segments, and Bezier arcs may be reported. In most cases, it is best to filter these out before using the outline for stroking or other path modification purposes (which may cause degenerate segments to become non-degenrate and visible, like when stroke caps are used or the path is otherwise outset). Some glyph outlines may contain deliberate degenerate single points for mark attachement. Similarly, the function returns success for an empty outline also (doing nothing, that is, not calling any emitter); if necessary, you should filter this out, too. FT_Outline_Funcs \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Outline_Funcs_ { FT_Outline_MoveToFunc move_to; FT_Outline_LineToFunc line_to; FT_Outline_ConicToFunc conic_to; FT_Outline_CubicToFunc cubic_to; int shift; FT_Pos delta; } FT_Outline_Funcs ; A structure to hold various function pointers used during outline decomposition in order to emit segments, conic, and cubic Beziers. fields move_to The \u2018move to\u2019 emitter. line_to The segment emitter. conic_to The second-order Bezier arc emitter. cubic_to The third-order Bezier arc emitter. shift The shift that is applied to coordinates before they are sent to the emitter. delta The delta that is applied to coordinates before they are sent to the emitter, but after the shift. note The point coordinates sent to the emitters are the transformed version of the original coordinates (this is important for high accuracy during scan-conversion). The transformation is simple: x' = (x << shift) - delta y' = (y << shift) - delta Set the values of shift and delta to 0 to get the original point coordinates. FT_Outline_MoveToFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Outline_MoveToFunc )( const FT_Vector * to, void * user ); # define FT_Outline_MoveTo_Func FT_Outline_MoveToFunc A function pointer type used to describe the signature of a \u2018move to\u2019 function during outline walking/decomposition. A \u2018move to\u2019 is emitted to start a new contour in an outline. input to A pointer to the target point of the \u2018move to\u2019. user A typeless pointer, which is passed from the caller of the decomposition function. return Error code. 0 means success. FT_Outline_LineToFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Outline_LineToFunc )( const FT_Vector * to, void * user ); # define FT_Outline_LineTo_Func FT_Outline_LineToFunc A function pointer type used to describe the signature of a \u2018line to\u2019 function during outline walking/decomposition. A \u2018line to\u2019 is emitted to indicate a segment in the outline. input to A pointer to the target point of the \u2018line to\u2019. user A typeless pointer, which is passed from the caller of the decomposition function. return Error code. 0 means success. FT_Outline_ConicToFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Outline_ConicToFunc )( const FT_Vector * control, const FT_Vector * to, void * user ); # define FT_Outline_ConicTo_Func FT_Outline_ConicToFunc A function pointer type used to describe the signature of a \u2018conic to\u2019 function during outline walking or decomposition. A \u2018conic to\u2019 is emitted to indicate a second-order Bezier arc in the outline. input control An intermediate control point between the last position and the new target in to . to A pointer to the target end point of the conic arc. user A typeless pointer, which is passed from the caller of the decomposition function. return Error code. 0 means success. FT_Outline_CubicToFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Outline_CubicToFunc )( const FT_Vector * control1, const FT_Vector * control2, const FT_Vector * to, void * user ); # define FT_Outline_CubicTo_Func FT_Outline_CubicToFunc A function pointer type used to describe the signature of a \u2018cubic to\u2019 function during outline walking or decomposition. A \u2018cubic to\u2019 is emitted to indicate a third-order Bezier arc. input control1 A pointer to the first Bezier control point. control2 A pointer to the second Bezier control point. to A pointer to the target end point. user A typeless pointer, which is passed from the caller of the decomposition function. return Error code. 0 means success. FT_Orientation \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). typedef enum FT_Orientation_ { FT_ORIENTATION_TRUETYPE = 0, FT_ORIENTATION_POSTSCRIPT = 1, FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE , FT_ORIENTATION_FILL_LEFT = FT_ORIENTATION_POSTSCRIPT , FT_ORIENTATION_NONE } FT_Orientation ; A list of values used to describe an outline's contour orientation. The TrueType and PostScript specifications use different conventions to determine whether outline contours should be filled or unfilled. values FT_ORIENTATION_TRUETYPE According to the TrueType specification, clockwise contours must be filled, and counter-clockwise ones must be unfilled. FT_ORIENTATION_POSTSCRIPT According to the PostScript specification, counter-clockwise contours must be filled, and clockwise ones must be unfilled. FT_ORIENTATION_FILL_RIGHT This is identical to FT_ORIENTATION_TRUETYPE , but is used to remember that in TrueType, everything that is to the right of the drawing direction of a contour must be filled. FT_ORIENTATION_FILL_LEFT This is identical to FT_ORIENTATION_POSTSCRIPT , but is used to remember that in PostScript, everything that is to the left of the drawing direction of a contour must be filled. FT_ORIENTATION_NONE The orientation cannot be determined. That is, different parts of the glyph have different orientation. FT_Outline_Get_Orientation \u00b6 Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Orientation ) FT_Outline_Get_Orientation ( FT_Outline * outline ); This function analyzes a glyph outline and tries to compute its fill orientation (see FT_Orientation ). This is done by integrating the total area covered by the outline. The positive integral corresponds to the clockwise orientation and FT_ORIENTATION_POSTSCRIPT is returned. The negative integral corresponds to the counter-clockwise orientation and FT_ORIENTATION_TRUETYPE is returned. Note that this will return FT_ORIENTATION_TRUETYPE for empty outlines. input outline A handle to the source outline. return The orientation. FT_OUTLINE_XXX \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). # define FT_OUTLINE_NONE 0x0 # define FT_OUTLINE_OWNER 0x1 # define FT_OUTLINE_EVEN_ODD_FILL 0x2 # define FT_OUTLINE_REVERSE_FILL 0x4 # define FT_OUTLINE_IGNORE_DROPOUTS 0x8 # define FT_OUTLINE_SMART_DROPOUTS 0x10 # define FT_OUTLINE_INCLUDE_STUBS 0x20 # define FT_OUTLINE_OVERLAP 0x40 # define FT_OUTLINE_HIGH_PRECISION 0x100 # define FT_OUTLINE_SINGLE_PASS 0x200 /* these constants are deprecated; use the corresponding */ /* ` FT_OUTLINE_XXX ` values instead */ # define ft_outline_none FT_OUTLINE_NONE # define ft_outline_owner FT_OUTLINE_OWNER # define ft_outline_even_odd_fill FT_OUTLINE_EVEN_ODD_FILL # define ft_outline_reverse_fill FT_OUTLINE_REVERSE_FILL # define ft_outline_ignore_dropouts FT_OUTLINE_IGNORE_DROPOUTS # define ft_outline_high_precision FT_OUTLINE_HIGH_PRECISION # define ft_outline_single_pass FT_OUTLINE_SINGLE_PASS A list of bit-field constants used for the flags in an outline's flags field. values FT_OUTLINE_NONE Value 0 is reserved. FT_OUTLINE_OWNER If set, this flag indicates that the outline's field arrays (i.e., points , flags , and contours ) are \u2018owned\u2019 by the outline object, and should thus be freed when it is destroyed. FT_OUTLINE_EVEN_ODD_FILL By default, outlines are filled using the non-zero winding rule. If set to 1, the outline will be filled using the even-odd fill rule (only works with the smooth rasterizer). FT_OUTLINE_REVERSE_FILL By default, outside contours of an outline are oriented in clock-wise direction, as defined in the TrueType specification. This flag is set if the outline uses the opposite direction (typically for Type 1 fonts). This flag is ignored by the scan converter. FT_OUTLINE_IGNORE_DROPOUTS By default, the scan converter will try to detect drop-outs in an outline and correct the glyph bitmap to ensure consistent shape continuity. If set, this flag hints the scan-line converter to ignore such cases. See below for more information. FT_OUTLINE_SMART_DROPOUTS Select smart dropout control. If unset, use simple dropout control. Ignored if FT_OUTLINE_IGNORE_DROPOUTS is set. See below for more information. FT_OUTLINE_INCLUDE_STUBS If set, turn pixels on for \u2018stubs\u2019, otherwise exclude them. Ignored if FT_OUTLINE_IGNORE_DROPOUTS is set. See below for more information. FT_OUTLINE_OVERLAP [Since 2.10.3] This flag indicates that this outline contains overlapping contours and the anti-aliased renderer should perform oversampling to mitigate possible artifacts. This flag should not be set for well designed glyphs without overlaps because it quadruples the rendering time. FT_OUTLINE_HIGH_PRECISION This flag indicates that the scan-line converter should try to convert this outline to bitmaps with the highest possible quality. It is typically set for small character sizes. Note that this is only a hint that might be completely ignored by a given scan-converter. FT_OUTLINE_SINGLE_PASS This flag is set to force a given scan-converter to only use a single pass over the outline to render a bitmap glyph image. Normally, it is set for very large character sizes. It is only a hint that might be completely ignored by a given scan-converter. note The flags FT_OUTLINE_IGNORE_DROPOUTS , FT_OUTLINE_SMART_DROPOUTS , and FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth rasterizer. There exists a second mechanism to pass the drop-out mode to the B/W rasterizer; see the tags field in FT_Outline . Please refer to the description of the \u2018SCANTYPE\u2019 instruction in the OpenType specification (in file ttinst1.doc ) how simple drop-outs, smart drop-outs, and stubs are defined.","title":"Outline Processing"},{"location":"ft2-outline_processing.html#outline-processing","text":"","title":"Outline Processing"},{"location":"ft2-outline_processing.html#synopsis","text":"This section contains routines used to create and destroy scalable glyph images known as \u2018outlines\u2019. These can also be measured, transformed, and converted into bitmaps and pixmaps.","title":"Synopsis"},{"location":"ft2-outline_processing.html#ft_outline","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Outline_ { short n_contours; /* number of contours in glyph */ short n_points; /* number of points in the glyph */ FT_Vector * points; /* the outline's points */ char * tags; /* the points flags */ short * contours; /* the contour end points */ int flags; /* outline masks */ } FT_Outline ; This structure is used to describe an outline to the scan-line converter.","title":"FT_Outline"},{"location":"ft2-outline_processing.html#ft_outline_new","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_New ( FT_Library library, FT_UInt numPoints, FT_Int numContours, FT_Outline *anoutline ); Create a new outline of a given size.","title":"FT_Outline_New"},{"location":"ft2-outline_processing.html#ft_outline_done","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Done ( FT_Library library, FT_Outline * outline ); Destroy an outline created with FT_Outline_New .","title":"FT_Outline_Done"},{"location":"ft2-outline_processing.html#ft_outline_copy","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Copy ( const FT_Outline * source, FT_Outline *target ); Copy an outline into another one. Both objects must have the same sizes (number of points & number of contours) when this function is called.","title":"FT_Outline_Copy"},{"location":"ft2-outline_processing.html#ft_outline_translate","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( void ) FT_Outline_Translate ( const FT_Outline * outline, FT_Pos xOffset, FT_Pos yOffset ); Apply a simple translation to the points of an outline.","title":"FT_Outline_Translate"},{"location":"ft2-outline_processing.html#ft_outline_transform","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( void ) FT_Outline_Transform ( const FT_Outline * outline, const FT_Matrix * matrix ); Apply a simple 2x2 matrix to all of an outline's points. Useful for applying rotations, slanting, flipping, etc.","title":"FT_Outline_Transform"},{"location":"ft2-outline_processing.html#ft_outline_embolden","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Embolden ( FT_Outline * outline, FT_Pos strength ); Embolden an outline. The new outline will be at most 4 times strength pixels wider and higher. You may think of the left and bottom borders as unchanged. Negative strength values to reduce the outline thickness are possible also.","title":"FT_Outline_Embolden"},{"location":"ft2-outline_processing.html#ft_outline_emboldenxy","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_EmboldenXY ( FT_Outline * outline, FT_Pos xstrength, FT_Pos ystrength ); Embolden an outline. The new outline will be xstrength pixels wider and ystrength pixels higher. Otherwise, it is similar to FT_Outline_Embolden , which uses the same strength in both directions.","title":"FT_Outline_EmboldenXY"},{"location":"ft2-outline_processing.html#ft_outline_reverse","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( void ) FT_Outline_Reverse ( FT_Outline * outline ); Reverse the drawing direction of an outline. This is used to ensure consistent fill conventions for mirrored glyphs.","title":"FT_Outline_Reverse"},{"location":"ft2-outline_processing.html#ft_outline_check","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Check ( FT_Outline * outline ); Check the contents of an outline descriptor.","title":"FT_Outline_Check"},{"location":"ft2-outline_processing.html#ft_outline_get_cbox","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( void ) FT_Outline_Get_CBox ( const FT_Outline * outline, FT_BBox *acbox ); Return an outline's \u2018control box\u2019. The control box encloses all the outline's points, including Bezier control points. Though it coincides with the exact bounding box for most glyphs, it can be slightly larger in some situations (like when rotating an outline that contains Bezier outside arcs). Computing the control box is very fast, while getting the bounding box can take much more time as it needs to walk over all segments and arcs in the outline. To get the latter, you can use the \u2018ftbbox\u2019 component, which is dedicated to this single task.","title":"FT_Outline_Get_CBox"},{"location":"ft2-outline_processing.html#ft_outline_get_bbox","text":"Defined in FT_BBOX_H (freetype/ftbbox.h). FT_EXPORT( FT_Error ) FT_Outline_Get_BBox ( FT_Outline * outline, FT_BBox *abbox ); Compute the exact bounding box of an outline. This is slower than computing the control box. However, it uses an advanced algorithm that returns very quickly when the two boxes coincide. Otherwise, the outline Bezier arcs are traversed to extract their extrema.","title":"FT_Outline_Get_BBox"},{"location":"ft2-outline_processing.html#ft_outline_get_bitmap","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Get_Bitmap ( FT_Library library, FT_Outline * outline, const FT_Bitmap *abitmap ); Render an outline within a bitmap. The outline's image is simply OR-ed to the target bitmap.","title":"FT_Outline_Get_Bitmap"},{"location":"ft2-outline_processing.html#ft_outline_render","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Render ( FT_Library library, FT_Outline * outline, FT_Raster_Params * params ); Render an outline within a bitmap using the current scan-convert.","title":"FT_Outline_Render"},{"location":"ft2-outline_processing.html#ft_outline_decompose","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Error ) FT_Outline_Decompose ( FT_Outline * outline, const FT_Outline_Funcs * func_interface, void * user ); Walk over an outline's structure to decompose it into individual segments and Bezier arcs. This function also emits \u2018move to\u2019 operations to indicate the start of new contours in the outline.","title":"FT_Outline_Decompose"},{"location":"ft2-outline_processing.html#ft_outline_funcs","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Outline_Funcs_ { FT_Outline_MoveToFunc move_to; FT_Outline_LineToFunc line_to; FT_Outline_ConicToFunc conic_to; FT_Outline_CubicToFunc cubic_to; int shift; FT_Pos delta; } FT_Outline_Funcs ; A structure to hold various function pointers used during outline decomposition in order to emit segments, conic, and cubic Beziers.","title":"FT_Outline_Funcs"},{"location":"ft2-outline_processing.html#ft_outline_movetofunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Outline_MoveToFunc )( const FT_Vector * to, void * user ); # define FT_Outline_MoveTo_Func FT_Outline_MoveToFunc A function pointer type used to describe the signature of a \u2018move to\u2019 function during outline walking/decomposition. A \u2018move to\u2019 is emitted to start a new contour in an outline.","title":"FT_Outline_MoveToFunc"},{"location":"ft2-outline_processing.html#ft_outline_linetofunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Outline_LineToFunc )( const FT_Vector * to, void * user ); # define FT_Outline_LineTo_Func FT_Outline_LineToFunc A function pointer type used to describe the signature of a \u2018line to\u2019 function during outline walking/decomposition. A \u2018line to\u2019 is emitted to indicate a segment in the outline.","title":"FT_Outline_LineToFunc"},{"location":"ft2-outline_processing.html#ft_outline_conictofunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Outline_ConicToFunc )( const FT_Vector * control, const FT_Vector * to, void * user ); # define FT_Outline_ConicTo_Func FT_Outline_ConicToFunc A function pointer type used to describe the signature of a \u2018conic to\u2019 function during outline walking or decomposition. A \u2018conic to\u2019 is emitted to indicate a second-order Bezier arc in the outline.","title":"FT_Outline_ConicToFunc"},{"location":"ft2-outline_processing.html#ft_outline_cubictofunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Outline_CubicToFunc )( const FT_Vector * control1, const FT_Vector * control2, const FT_Vector * to, void * user ); # define FT_Outline_CubicTo_Func FT_Outline_CubicToFunc A function pointer type used to describe the signature of a \u2018cubic to\u2019 function during outline walking or decomposition. A \u2018cubic to\u2019 is emitted to indicate a third-order Bezier arc.","title":"FT_Outline_CubicToFunc"},{"location":"ft2-outline_processing.html#ft_orientation","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). typedef enum FT_Orientation_ { FT_ORIENTATION_TRUETYPE = 0, FT_ORIENTATION_POSTSCRIPT = 1, FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE , FT_ORIENTATION_FILL_LEFT = FT_ORIENTATION_POSTSCRIPT , FT_ORIENTATION_NONE } FT_Orientation ; A list of values used to describe an outline's contour orientation. The TrueType and PostScript specifications use different conventions to determine whether outline contours should be filled or unfilled.","title":"FT_Orientation"},{"location":"ft2-outline_processing.html#ft_outline_get_orientation","text":"Defined in FT_OUTLINE_H (freetype/ftoutln.h). FT_EXPORT( FT_Orientation ) FT_Outline_Get_Orientation ( FT_Outline * outline ); This function analyzes a glyph outline and tries to compute its fill orientation (see FT_Orientation ). This is done by integrating the total area covered by the outline. The positive integral corresponds to the clockwise orientation and FT_ORIENTATION_POSTSCRIPT is returned. The negative integral corresponds to the counter-clockwise orientation and FT_ORIENTATION_TRUETYPE is returned. Note that this will return FT_ORIENTATION_TRUETYPE for empty outlines.","title":"FT_Outline_Get_Orientation"},{"location":"ft2-outline_processing.html#ft_outline_xxx","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). # define FT_OUTLINE_NONE 0x0 # define FT_OUTLINE_OWNER 0x1 # define FT_OUTLINE_EVEN_ODD_FILL 0x2 # define FT_OUTLINE_REVERSE_FILL 0x4 # define FT_OUTLINE_IGNORE_DROPOUTS 0x8 # define FT_OUTLINE_SMART_DROPOUTS 0x10 # define FT_OUTLINE_INCLUDE_STUBS 0x20 # define FT_OUTLINE_OVERLAP 0x40 # define FT_OUTLINE_HIGH_PRECISION 0x100 # define FT_OUTLINE_SINGLE_PASS 0x200 /* these constants are deprecated; use the corresponding */ /* ` FT_OUTLINE_XXX ` values instead */ # define ft_outline_none FT_OUTLINE_NONE # define ft_outline_owner FT_OUTLINE_OWNER # define ft_outline_even_odd_fill FT_OUTLINE_EVEN_ODD_FILL # define ft_outline_reverse_fill FT_OUTLINE_REVERSE_FILL # define ft_outline_ignore_dropouts FT_OUTLINE_IGNORE_DROPOUTS # define ft_outline_high_precision FT_OUTLINE_HIGH_PRECISION # define ft_outline_single_pass FT_OUTLINE_SINGLE_PASS A list of bit-field constants used for the flags in an outline's flags field.","title":"FT_OUTLINE_XXX"},{"location":"ft2-parameter_tags.html","text":"FreeType \u00bb Docs \u00bb Controlling FreeType Modules \u00bb Parameter Tags Parameter Tags \u00b6 Synopsis \u00b6 This section contains macros for the FT_Parameter structure that are used with various functions to activate some special functionality or different behaviour of various components of FreeType. FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY \u00b6 # define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY \\ FT_MAKE_TAG ( 'i', 'g', 'p', 'f' ) /* this constant is deprecated */ # define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY \\ FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY A tag for FT_Parameter to make FT_Open_Face ignore typographic family names in the \u2018name\u2019 table (introduced in OpenType version 1.4). Use this for backward compatibility with legacy systems that have a four-faces-per-family restriction. since 2.8 FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY \u00b6 # define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY \\ FT_MAKE_TAG ( 'i', 'g', 'p', 's' ) /* this constant is deprecated */ # define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY \\ FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY A tag for FT_Parameter to make FT_Open_Face ignore typographic subfamily names in the \u2018name\u2019 table (introduced in OpenType version 1.4). Use this for backward compatibility with legacy systems that have a four-faces-per-family restriction. since 2.8 FT_PARAM_TAG_INCREMENTAL \u00b6 # define FT_PARAM_TAG_INCREMENTAL \\ FT_MAKE_TAG ( 'i', 'n', 'c', 'r' ) An FT_Parameter tag to be used with FT_Open_Face to indicate incremental glyph loading. FT_PARAM_TAG_IGNORE_SBIX \u00b6 # define FT_PARAM_TAG_IGNORE_SBIX \\ FT_MAKE_TAG ( 'i', 's', 'b', 'x' ) A tag for FT_Parameter to make FT_Open_Face ignore an \u2018sbix\u2019 table while loading a font. Use this if FT_FACE_FLAG_SBIX is set and you want to access the outline glyphs in the font. FT_PARAM_TAG_LCD_FILTER_WEIGHTS \u00b6 # define FT_PARAM_TAG_LCD_FILTER_WEIGHTS \\ FT_MAKE_TAG ( 'l', 'c', 'd', 'f' ) An FT_Parameter tag to be used with FT_Face_Properties . The corresponding argument specifies the five LCD filter weights for a given face (if using FT_LOAD_TARGET_LCD , for example), overriding the global default values or the values set up with FT_Library_SetLcdFilterWeights . since 2.8 FT_PARAM_TAG_RANDOM_SEED \u00b6 # define FT_PARAM_TAG_RANDOM_SEED \\ FT_MAKE_TAG ( 's', 'e', 'e', 'd' ) An FT_Parameter tag to be used with FT_Face_Properties . The corresponding 32bit signed integer argument overrides the font driver's random seed value with a face-specific one; see random-seed . since 2.8 FT_PARAM_TAG_STEM_DARKENING \u00b6 # define FT_PARAM_TAG_STEM_DARKENING \\ FT_MAKE_TAG ( 'd', 'a', 'r', 'k' ) An FT_Parameter tag to be used with FT_Face_Properties . The corresponding Boolean argument specifies whether to apply stem darkening, overriding the global default values or the values set up with FT_Property_Set (see no-stem-darkening ). This is a passive setting that only takes effect if the font driver or autohinter honors it, which the CFF, Type 1, and CID drivers always do, but the autohinter only in \u2018light\u2019 hinting mode (as of version 2.9). since 2.8 FT_PARAM_TAG_UNPATENTED_HINTING \u00b6 # define FT_PARAM_TAG_UNPATENTED_HINTING \\ FT_MAKE_TAG ( 'u', 'n', 'p', 'a' ) Deprecated, no effect. Previously: A constant used as the tag of an FT_Parameter structure to indicate that unpatented methods only should be used by the TrueType bytecode interpreter for a typeface opened by FT_Open_Face .","title":"Parameter Tags"},{"location":"ft2-parameter_tags.html#parameter-tags","text":"","title":"Parameter Tags"},{"location":"ft2-parameter_tags.html#synopsis","text":"This section contains macros for the FT_Parameter structure that are used with various functions to activate some special functionality or different behaviour of various components of FreeType.","title":"Synopsis"},{"location":"ft2-parameter_tags.html#ft_param_tag_ignore_typographic_family","text":"# define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY \\ FT_MAKE_TAG ( 'i', 'g', 'p', 'f' ) /* this constant is deprecated */ # define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY \\ FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY A tag for FT_Parameter to make FT_Open_Face ignore typographic family names in the \u2018name\u2019 table (introduced in OpenType version 1.4). Use this for backward compatibility with legacy systems that have a four-faces-per-family restriction.","title":"FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY"},{"location":"ft2-parameter_tags.html#ft_param_tag_ignore_typographic_subfamily","text":"# define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY \\ FT_MAKE_TAG ( 'i', 'g', 'p', 's' ) /* this constant is deprecated */ # define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY \\ FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY A tag for FT_Parameter to make FT_Open_Face ignore typographic subfamily names in the \u2018name\u2019 table (introduced in OpenType version 1.4). Use this for backward compatibility with legacy systems that have a four-faces-per-family restriction.","title":"FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY"},{"location":"ft2-parameter_tags.html#ft_param_tag_incremental","text":"# define FT_PARAM_TAG_INCREMENTAL \\ FT_MAKE_TAG ( 'i', 'n', 'c', 'r' ) An FT_Parameter tag to be used with FT_Open_Face to indicate incremental glyph loading.","title":"FT_PARAM_TAG_INCREMENTAL"},{"location":"ft2-parameter_tags.html#ft_param_tag_ignore_sbix","text":"# define FT_PARAM_TAG_IGNORE_SBIX \\ FT_MAKE_TAG ( 'i', 's', 'b', 'x' ) A tag for FT_Parameter to make FT_Open_Face ignore an \u2018sbix\u2019 table while loading a font. Use this if FT_FACE_FLAG_SBIX is set and you want to access the outline glyphs in the font.","title":"FT_PARAM_TAG_IGNORE_SBIX"},{"location":"ft2-parameter_tags.html#ft_param_tag_lcd_filter_weights","text":"# define FT_PARAM_TAG_LCD_FILTER_WEIGHTS \\ FT_MAKE_TAG ( 'l', 'c', 'd', 'f' ) An FT_Parameter tag to be used with FT_Face_Properties . The corresponding argument specifies the five LCD filter weights for a given face (if using FT_LOAD_TARGET_LCD , for example), overriding the global default values or the values set up with FT_Library_SetLcdFilterWeights .","title":"FT_PARAM_TAG_LCD_FILTER_WEIGHTS"},{"location":"ft2-parameter_tags.html#ft_param_tag_random_seed","text":"# define FT_PARAM_TAG_RANDOM_SEED \\ FT_MAKE_TAG ( 's', 'e', 'e', 'd' ) An FT_Parameter tag to be used with FT_Face_Properties . The corresponding 32bit signed integer argument overrides the font driver's random seed value with a face-specific one; see random-seed .","title":"FT_PARAM_TAG_RANDOM_SEED"},{"location":"ft2-parameter_tags.html#ft_param_tag_stem_darkening","text":"# define FT_PARAM_TAG_STEM_DARKENING \\ FT_MAKE_TAG ( 'd', 'a', 'r', 'k' ) An FT_Parameter tag to be used with FT_Face_Properties . The corresponding Boolean argument specifies whether to apply stem darkening, overriding the global default values or the values set up with FT_Property_Set (see no-stem-darkening ). This is a passive setting that only takes effect if the font driver or autohinter honors it, which the CFF, Type 1, and CID drivers always do, but the autohinter only in \u2018light\u2019 hinting mode (as of version 2.9).","title":"FT_PARAM_TAG_STEM_DARKENING"},{"location":"ft2-parameter_tags.html#ft_param_tag_unpatented_hinting","text":"# define FT_PARAM_TAG_UNPATENTED_HINTING \\ FT_MAKE_TAG ( 'u', 'n', 'p', 'a' ) Deprecated, no effect. Previously: A constant used as the tag of an FT_Parameter structure to indicate that unpatented methods only should be used by the TrueType bytecode interpreter for a typeface opened by FT_Open_Face .","title":"FT_PARAM_TAG_UNPATENTED_HINTING"},{"location":"ft2-pcf_driver.html","text":"FreeType \u00bb Docs \u00bb Controlling FreeType Modules \u00bb The PCF driver The PCF driver \u00b6 Synopsis \u00b6 While FreeType's PCF driver doesn't expose API functions by itself, it is possible to control its behaviour with FT_Property_Set and FT_Property_Get . Right now, there is a single property no-long-family-names available if FreeType is compiled with PCF_CONFIG_OPTION_LONG_FAMILY_NAMES. The PCF driver's module name is \u2018pcf\u2019.","title":"The PCF driver"},{"location":"ft2-pcf_driver.html#the-pcf-driver","text":"","title":"The PCF driver"},{"location":"ft2-pcf_driver.html#synopsis","text":"While FreeType's PCF driver doesn't expose API functions by itself, it is possible to control its behaviour with FT_Property_Set and FT_Property_Get . Right now, there is a single property no-long-family-names available if FreeType is compiled with PCF_CONFIG_OPTION_LONG_FAMILY_NAMES. The PCF driver's module name is \u2018pcf\u2019.","title":"Synopsis"},{"location":"ft2-pfr_fonts.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb PFR Fonts PFR Fonts \u00b6 Synopsis \u00b6 This section contains the declaration of PFR-specific functions. FT_Get_PFR_Metrics \u00b6 Defined in FT_PFR_H (freetype/ftpfr.h). FT_EXPORT( FT_Error ) FT_Get_PFR_Metrics ( FT_Face face, FT_UInt *aoutline_resolution, FT_UInt *ametrics_resolution, FT_Fixed *ametrics_x_scale, FT_Fixed *ametrics_y_scale ); Return the outline and metrics resolutions of a given PFR face. input face Handle to the input face. It can be a non-PFR face. output aoutline_resolution Outline resolution. This is equivalent to face->units_per_EM for non-PFR fonts. Optional (parameter can be NULL ). ametrics_resolution Metrics resolution. This is equivalent to outline_resolution for non-PFR fonts. Optional (parameter can be NULL ). ametrics_x_scale A 16.16 fixed-point number used to scale distance expressed in metrics units to device subpixels. This is equivalent to face->size->x_scale , but for metrics only. Optional (parameter can be NULL ). ametrics_y_scale Same as ametrics_x_scale but for the vertical direction. optional (parameter can be NULL ). return FreeType error code. 0 means success. note If the input face is not a PFR, this function will return an error. However, in all cases, it will return valid values. FT_Get_PFR_Kerning \u00b6 Defined in FT_PFR_H (freetype/ftpfr.h). FT_EXPORT( FT_Error ) FT_Get_PFR_Kerning ( FT_Face face, FT_UInt left, FT_UInt right, FT_Vector *avector ); Return the kerning pair corresponding to two glyphs in a PFR face. The distance is expressed in metrics units, unlike the result of FT_Get_Kerning . input face A handle to the input face. left Index of the left glyph. right Index of the right glyph. output avector A kerning vector. return FreeType error code. 0 means success. note This function always return distances in original PFR metrics units. This is unlike FT_Get_Kerning with the FT_KERNING_UNSCALED mode, which always returns distances converted to outline units. You can use the value of the x_scale and y_scale parameters returned by FT_Get_PFR_Metrics to scale these to device subpixels. FT_Get_PFR_Advance \u00b6 Defined in FT_PFR_H (freetype/ftpfr.h). FT_EXPORT( FT_Error ) FT_Get_PFR_Advance ( FT_Face face, FT_UInt gindex, FT_Pos *aadvance ); Return a given glyph advance, expressed in original metrics units, from a PFR font. input face A handle to the input face. gindex The glyph index. output aadvance The glyph advance in metrics units. return FreeType error code. 0 means success. note You can use the x_scale or y_scale results of FT_Get_PFR_Metrics to convert the advance to device subpixels (i.e., 1/64 of pixels).","title":"PFR Fonts"},{"location":"ft2-pfr_fonts.html#pfr-fonts","text":"","title":"PFR Fonts"},{"location":"ft2-pfr_fonts.html#synopsis","text":"This section contains the declaration of PFR-specific functions.","title":"Synopsis"},{"location":"ft2-pfr_fonts.html#ft_get_pfr_metrics","text":"Defined in FT_PFR_H (freetype/ftpfr.h). FT_EXPORT( FT_Error ) FT_Get_PFR_Metrics ( FT_Face face, FT_UInt *aoutline_resolution, FT_UInt *ametrics_resolution, FT_Fixed *ametrics_x_scale, FT_Fixed *ametrics_y_scale ); Return the outline and metrics resolutions of a given PFR face.","title":"FT_Get_PFR_Metrics"},{"location":"ft2-pfr_fonts.html#ft_get_pfr_kerning","text":"Defined in FT_PFR_H (freetype/ftpfr.h). FT_EXPORT( FT_Error ) FT_Get_PFR_Kerning ( FT_Face face, FT_UInt left, FT_UInt right, FT_Vector *avector ); Return the kerning pair corresponding to two glyphs in a PFR face. The distance is expressed in metrics units, unlike the result of FT_Get_Kerning .","title":"FT_Get_PFR_Kerning"},{"location":"ft2-pfr_fonts.html#ft_get_pfr_advance","text":"Defined in FT_PFR_H (freetype/ftpfr.h). FT_EXPORT( FT_Error ) FT_Get_PFR_Advance ( FT_Face face, FT_UInt gindex, FT_Pos *aadvance ); Return a given glyph advance, expressed in original metrics units, from a PFR font.","title":"FT_Get_PFR_Advance"},{"location":"ft2-preamble.html","text":"FreeType \u00bb Docs \u00bb General Remarks \u00bb Preamble Preamble \u00b6 Synopsis \u00b6 FreeType is a library that provides access to glyphs in font files. It scales the glyph images and their metrics to a requested size, and it rasterizes the glyph images to produce pixel or subpixel alpha coverage bitmaps. Note that FreeType is not a text layout engine. You have to use higher-level libraries like HarfBuzz, Pango, or ICU for that. Note also that FreeType does not perform alpha blending or compositing the resulting bitmaps or pixmaps by itself. Use your favourite graphics library (for example, Cairo or Skia) to further process FreeType's output.","title":"Preamble"},{"location":"ft2-preamble.html#preamble","text":"","title":"Preamble"},{"location":"ft2-preamble.html#synopsis","text":"FreeType is a library that provides access to glyphs in font files. It scales the glyph images and their metrics to a requested size, and it rasterizes the glyph images to produce pixel or subpixel alpha coverage bitmaps. Note that FreeType is not a text layout engine. You have to use higher-level libraries like HarfBuzz, Pango, or ICU for that. Note also that FreeType does not perform alpha blending or compositing the resulting bitmaps or pixmaps by itself. Use your favourite graphics library (for example, Cairo or Skia) to further process FreeType's output.","title":"Synopsis"},{"location":"ft2-properties.html","text":"FreeType \u00bb Docs \u00bb Controlling FreeType Modules \u00bb Driver properties Driver properties \u00b6 Synopsis \u00b6 Driver modules can be controlled by setting and unsetting properties, using the functions FT_Property_Set and FT_Property_Get . This section documents the available properties, together with auxiliary macros and structures. FT_HINTING_XXX \u00b6 Defined in FT_DRIVER_H (freetype/ftdriver.h). # define FT_HINTING_FREETYPE 0 # define FT_HINTING_ADOBE 1 /* these constants (introduced in 2.4.12) are deprecated */ # define FT_CFF_HINTING_FREETYPE FT_HINTING_FREETYPE # define FT_CFF_HINTING_ADOBE FT_HINTING_ADOBE A list of constants used for the hinting-engine property to select the hinting engine for CFF, Type 1, and CID fonts. values FT_HINTING_FREETYPE Use the old FreeType hinting engine. FT_HINTING_ADOBE Use the hinting engine contributed by Adobe. since 2.9 hinting-engine \u00b6 Thanks to Adobe, which contributed a new hinting (and parsing) engine, an application can select between \u2018freetype\u2019 and \u2018adobe\u2019 if compiled with CFF_CONFIG_OPTION_OLD_ENGINE . If this configuration macro isn't defined, \u2018hinting-engine\u2019 does nothing. The same holds for the Type 1 and CID modules if compiled with T1_CONFIG_OPTION_OLD_ENGINE . For the \u2018cff\u2019 module, the default engine is \u2018adobe\u2019. For both the \u2018type1\u2019 and \u2018t1cid\u2019 modules, the default engine is \u2018adobe\u2019, too. note This property can be used with FT_Property_Get also. This property can be set via the FREETYPE_PROPERTIES environment variable (using values \u2018adobe\u2019 or \u2018freetype\u2019). example The following example code demonstrates how to select Adobe's hinting engine for the \u2018cff\u2019 module (omitting the error handling). FT_Library library; FT_UInt hinting_engine = FT_HINTING_ADOBE; FT_Init_FreeType( &library ); FT_Property_Set( library, \"cff\", \"hinting-engine\", &hinting_engine ); since 2.4.12 (for \u2018cff\u2019 module) 2.9 (for \u2018type1\u2019 and \u2018t1cid\u2019 modules) no-stem-darkening \u00b6 All glyphs that pass through the auto-hinter will be emboldened unless this property is set to TRUE. The same is true for the CFF, Type 1, and CID font modules if the \u2018Adobe\u2019 engine is selected (which is the default). Stem darkening emboldens glyphs at smaller sizes to make them more readable on common low-DPI screens when using linear alpha blending and gamma correction, see FT_Render_Glyph . When not using linear alpha blending and gamma correction, glyphs will appear heavy and fuzzy! Gamma correction essentially lightens fonts since shades of grey are shifted to higher pixel values (= higher brightness) to match the original intention to the reality of our screens. The side-effect is that glyphs \u2018thin out\u2019. Mac OS X and Adobe's proprietary font rendering library implement a counter-measure: stem darkening at smaller sizes where shades of gray dominate. By emboldening a glyph slightly in relation to its pixel size, individual pixels get higher coverage of filled-in outlines and are therefore \u2018blacker\u2019. This counteracts the \u2018thinning out\u2019 of glyphs, making text remain readable at smaller sizes. For the auto-hinter, stem-darkening is experimental currently and thus switched off by default (that is, no-stem-darkening is set to TRUE by default). Total consistency with the CFF driver is not achieved right now because the emboldening method differs and glyphs must be scaled down on the Y-axis to keep outline points inside their precomputed blue zones. The smaller the size (especially 9ppem and down), the higher the loss of emboldening versus the CFF driver. Note that stem darkening is never applied if FT_LOAD_NO_SCALE is set. note This property can be used with FT_Property_Get also. This property can be set via the FREETYPE_PROPERTIES environment variable (using values 1 and 0 for \u2018on\u2019 and \u2018off\u2019, respectively). It can also be set per face using FT_Face_Properties with FT_PARAM_TAG_STEM_DARKENING . example FT_Library library; FT_Bool no_stem_darkening = TRUE; FT_Init_FreeType( &library ); FT_Property_Set( library, \"cff\", \"no-stem-darkening\", &no_stem_darkening ); since 2.4.12 (for \u2018cff\u2019 module) 2.6.2 (for \u2018autofitter\u2019 module) 2.9 (for \u2018type1\u2019 and \u2018t1cid\u2019 modules) darkening-parameters \u00b6 By default, the Adobe hinting engine, as used by the CFF, Type 1, and CID font drivers, darkens stems as follows (if the no-stem-darkening property isn't set): stem width <= 0.5px: darkening amount = 0.4px stem width = 1px: darkening amount = 0.275px stem width = 1.667px: darkening amount = 0.275px stem width >= 2.333px: darkening amount = 0px and piecewise linear in-between. At configuration time, these four control points can be set with the macro CFF_CONFIG_OPTION_DARKENING_PARAMETERS ; the CFF, Type 1, and CID drivers share these values. At runtime, the control points can be changed using the darkening-parameters property (see the example below that demonstrates this for the Type 1 driver). The x values give the stem width, and the y values the darkening amount. The unit is 1000 th of pixels. All coordinate values must be positive; the x values must be monotonically increasing; the y values must be monotonically decreasing and smaller than or equal to 500 (corresponding to half a pixel); the slope of each linear piece must be shallower than -1 (e.g., -.4). The auto-hinter provides this property, too, as an experimental feature. See no-stem-darkening for more. note This property can be used with FT_Property_Get also. This property can be set via the FREETYPE_PROPERTIES environment variable, using eight comma-separated integers without spaces. Here the above example, using \\ to break the line for readability. FREETYPE_PROPERTIES=\\ type1:darkening-parameters=500,300,1000,200,1500,100,2000,0 example FT_Library library; FT_Int darken_params[8] = { 500, 300, // x1, y1 1000, 200, // x2, y2 1500, 100, // x3, y3 2000, 0 }; // x4, y4 FT_Init_FreeType( &library ); FT_Property_Set( library, \"type1\", \"darkening-parameters\", darken_params ); since 2.5.1 (for \u2018cff\u2019 module) 2.6.2 (for \u2018autofitter\u2019 module) 2.9 (for \u2018type1\u2019 and \u2018t1cid\u2019 modules) random-seed \u00b6 By default, the seed value for the CFF \u2018random\u2019 operator and the similar \u20180 28 callothersubr pop\u2019 command for the Type 1 and CID drivers is set to a random value. However, mainly for debugging purposes, it is often necessary to use a known value as a seed so that the pseudo-random number sequences generated by \u2018random\u2019 are repeatable. The random-seed property does that. Its argument is a signed 32bit integer; if the value is zero or negative, the seed given by the intitialRandomSeed private DICT operator in a CFF file gets used (or a default value if there is no such operator). If the value is positive, use it instead of initialRandomSeed , which is consequently ignored. note This property can be set via the FREETYPE_PROPERTIES environment variable. It can also be set per face using FT_Face_Properties with FT_PARAM_TAG_RANDOM_SEED . since 2.8 (for \u2018cff\u2019 module) 2.9 (for \u2018type1\u2019 and \u2018t1cid\u2019 modules) no-long-family-names \u00b6 If PCF_CONFIG_OPTION_LONG_FAMILY_NAMES is active while compiling FreeType, the PCF driver constructs long family names. There are many PCF fonts just called \u2018Fixed\u2019 which look completely different, and which have nothing to do with each other. When selecting \u2018Fixed\u2019 in KDE or Gnome one gets results that appear rather random, the style changes often if one changes the size and one cannot select some fonts at all. The improve this situation, the PCF module prepends the foundry name (plus a space) to the family name. It also checks whether there are \u2018wide\u2019 characters; all put together, family names like \u2018Sony Fixed\u2019 or \u2018Misc Fixed Wide\u2019 are constructed. If no-long-family-names is set, this feature gets switched off. note This property can be used with FT_Property_Get also. This property can be set via the FREETYPE_PROPERTIES environment variable (using values 1 and 0 for \u2018on\u2019 and \u2018off\u2019, respectively). example FT_Library library; FT_Bool no_long_family_names = TRUE; FT_Init_FreeType( &library ); FT_Property_Set( library, \"pcf\", \"no-long-family-names\", &no_long_family_names ); since 2.8 TT_INTERPRETER_VERSION_XXX \u00b6 Defined in FT_DRIVER_H (freetype/ftdriver.h). # define TT_INTERPRETER_VERSION_35 35 # define TT_INTERPRETER_VERSION_38 38 # define TT_INTERPRETER_VERSION_40 40 A list of constants used for the interpreter-version property to select the hinting engine for Truetype fonts. The numeric value in the constant names represents the version number as returned by the \u2018GETINFO\u2019 bytecode instruction. values TT_INTERPRETER_VERSION_35 Version 35 corresponds to MS rasterizer v.1.7 as used e.g. in Windows 98; only grayscale and B/W rasterizing is supported. TT_INTERPRETER_VERSION_38 Version 38 is the same Version 40. The original \u2018Infinality\u2019 code is no longer available. TT_INTERPRETER_VERSION_40 Version 40 corresponds to MS rasterizer v.2.1; it is roughly equivalent to the hinting provided by DirectWrite ClearType (as can be found, for example, in Microsoft's Edge Browser on Windows 10). It is used in FreeType to select the \u2018minimal\u2019 subpixel hinting code, a stripped-down and higher performance version of the \u2018Infinality\u2019 code. note This property controls the behaviour of the bytecode interpreter and thus how outlines get hinted. It does not control how glyph get rasterized! In particular, it does not control subpixel color filtering. If FreeType has not been compiled with the configuration option TT_CONFIG_OPTION_SUBPIXEL_HINTING , selecting version 38 or 40 causes an FT_Err_Unimplemented_Feature error. Depending on the graphics framework, Microsoft uses different bytecode and rendering engines. As a consequence, the version numbers returned by a call to the \u2018GETINFO\u2019 bytecode instruction are more convoluted than desired. Here are two tables that try to shed some light on the possible values for the MS rasterizer engine, together with the additional features introduced by it. GETINFO framework version feature ------------------------------------------------------------------- 3 GDI (Win 3.1), v1.0 16-bit, first version TrueImage 33 GDI (Win NT 3.1), v1.5 32-bit HP Laserjet 34 GDI (Win 95) v1.6 font smoothing, new SCANTYPE opcode 35 GDI (Win 98/2000) v1.7 (UN)SCALED_COMPONENT_OFFSET bits in composite glyphs 36 MGDI (Win CE 2) v1.6+ classic ClearType 37 GDI (XP and later), v1.8 ClearType GDI+ old (before Vista) 38 GDI+ old (Vista, Win 7), v1.9 subpixel ClearType, WPF Y-direction ClearType, additional error checking 39 DWrite (before Win 8) v2.0 subpixel ClearType flags in GETINFO opcode, bug fixes 40 GDI+ (after Win 7), v2.1 Y-direction ClearType flag DWrite (Win 8) in GETINFO opcode, Gray ClearType The \u2018version\u2019 field gives a rough orientation only, since some applications provided certain features much earlier (as an example, Microsoft Reader used subpixel and Y-direction ClearType already in Windows 2000). Similarly, updates to a given framework might include improved hinting support. version sampling rendering comment x y x y -------------------------------------------------------------- v1.0 normal normal B/W B/W bi-level v1.6 high high gray gray grayscale v1.8 high normal color-filter B/W (GDI) ClearType v1.9 high high color-filter gray Color ClearType v2.1 high normal gray B/W Gray ClearType v2.1 high high gray gray Gray ClearType Color and Gray ClearType are the two available variants of \u2018Y-direction ClearType\u2019, meaning grayscale rasterization along the Y-direction; the name used in the TrueType specification for this feature is \u2018symmetric smoothing\u2019. \u2018Classic ClearType\u2019 is the original algorithm used before introducing a modified version in Win XP. Another name for v1.6's grayscale rendering is \u2018font smoothing\u2019, and \u2018Color ClearType\u2019 is sometimes also called \u2018DWrite ClearType\u2019. To differentiate between today's Color ClearType and the earlier ClearType variant with B/W rendering along the vertical axis, the latter is sometimes called \u2018GDI ClearType\u2019. \u2018Normal\u2019 and \u2018high\u2019 sampling describe the (virtual) resolution to access the rasterized outline after the hinting process. \u2018Normal\u2019 means 1 sample per grid line (i.e., B/W). In the current Microsoft implementation, \u2018high\u2019 means an extra virtual resolution of 16x16 (or 16x1) grid lines per pixel for bytecode instructions like \u2018MIRP\u2019. After hinting, these 16 grid lines are mapped to 6x5 (or 6x1) grid lines for color filtering if Color ClearType is activated. Note that \u2018Gray ClearType\u2019 is essentially the same as v1.6's grayscale rendering. However, the GETINFO instruction handles it differently: v1.6 returns bit 12 (hinting for grayscale), while v2.1 returns bits 13 (hinting for ClearType), 18 (symmetrical smoothing), and 19 (Gray ClearType). Also, this mode respects bits 2 and 3 for the version 1 gasp table exclusively (like Color ClearType), while v1.6 only respects the values of version 0 (bits 0 and 1). Keep in mind that the features of the above interpreter versions might not map exactly to FreeType features or behavior because it is a fundamentally different library with different internals. interpreter-version \u00b6 Currently, three versions are available, two representing the bytecode interpreter with subpixel hinting support (old \u2018Infinality\u2019 code and new stripped-down and higher performance \u2018minimal\u2019 code) and one without, respectively. The default is subpixel support if TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined, and no subpixel support otherwise (since it isn't available then). If subpixel hinting is on, many TrueType bytecode instructions behave differently compared to B/W or grayscale rendering (except if \u2018native ClearType\u2019 is selected by the font). Microsoft's main idea is to render at a much increased horizontal resolution, then sampling down the created output to subpixel precision. However, many older fonts are not suited to this and must be specially taken care of by applying (hardcoded) tweaks in Microsoft's interpreter. Details on subpixel hinting and some of the necessary tweaks can be found in Greg Hitchcock's whitepaper at \u2018 https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx \u2019. Note that FreeType currently doesn't really \u2018subpixel hint\u2019 (6x1, 6x2, or 6x5 supersampling) like discussed in the paper. Depending on the chosen interpreter, it simply ignores instructions on vertical stems to arrive at very similar results. note This property can be used with FT_Property_Get also. This property can be set via the FREETYPE_PROPERTIES environment variable (using values \u201835\u2019, \u201838\u2019, or \u201840\u2019). example The following example code demonstrates how to deactivate subpixel hinting (omitting the error handling). FT_Library library; FT_Face face; FT_UInt interpreter_version = TT_INTERPRETER_VERSION_35; FT_Init_FreeType( &library ); FT_Property_Set( library, \"truetype\", \"interpreter-version\", &interpreter_version ); since 2.5 svg-hooks \u00b6 Set up the interface between FreeType and an extern SVG rendering library like \u2018librsvg\u2019. All details on the function hooks can be found in section \u2018 OpenType SVG Fonts \u2019. example The following example code expects that the four hook functions svg_* are defined elsewhere. Error handling is omitted, too. FT_Library library; SVG_RendererHooks hooks = { (SVG_Lib_Init_Func)svg_init, (SVG_Lib_Free_Func)svg_free, (SVG_Lib_Render_Func)svg_render, (SVG_Lib_Preset_Slot_Func)svg_preset_slot }; FT_Init_FreeType( &library ); FT_Property_Set( library, \"ot-svg\", \"svg-hooks\", &hooks ); since 2.12 glyph-to-script-map \u00b6 Experimental only The auto-hinter provides various script modules to hint glyphs. Examples of supported scripts are Latin or CJK. Before a glyph is auto-hinted, the Unicode character map of the font gets examined, and the script is then determined based on Unicode character ranges, see below. OpenType fonts, however, often provide much more glyphs than character codes (small caps, superscripts, ligatures, swashes, etc.), to be controlled by so-called \u2018features\u2019. Handling OpenType features can be quite complicated and thus needs a separate library on top of FreeType. The mapping between glyph indices and scripts (in the auto-hinter sense, see the FT_AUTOHINTER_SCRIPT_XXX values) is stored as an array with num_glyphs elements, as found in the font's FT_Face structure. The glyph-to-script-map property returns a pointer to this array, which can be modified as needed. Note that the modification should happen before the first glyph gets processed by the auto-hinter so that the global analysis of the font shapes actually uses the modified mapping. example The following example code demonstrates how to access it (omitting the error handling). FT_Library library; FT_Face face; FT_Prop_GlyphToScriptMap prop; FT_Init_FreeType( &library ); FT_New_Face( library, \"foo.ttf\", 0, &face ); prop.face = face; FT_Property_Get( library, \"autofitter\", \"glyph-to-script-map\", &prop ); // adjust `prop.map' as needed right here FT_Load_Glyph( face, ..., FT_LOAD_FORCE_AUTOHINT ); since 2.4.11 FT_AUTOHINTER_SCRIPT_XXX \u00b6 Defined in FT_DRIVER_H (freetype/ftdriver.h). # define FT_AUTOHINTER_SCRIPT_NONE 0 # define FT_AUTOHINTER_SCRIPT_LATIN 1 # define FT_AUTOHINTER_SCRIPT_CJK 2 # define FT_AUTOHINTER_SCRIPT_INDIC 3 Experimental only A list of constants used for the glyph-to-script-map property to specify the script submodule the auto-hinter should use for hinting a particular glyph. values FT_AUTOHINTER_SCRIPT_NONE Don't auto-hint this glyph. FT_AUTOHINTER_SCRIPT_LATIN Apply the latin auto-hinter. For the auto-hinter, \u2018latin\u2019 is a very broad term, including Cyrillic and Greek also since characters from those scripts share the same design constraints. By default, characters from the following Unicode ranges are assigned to this submodule. U+0020 - U+007F // Basic Latin (no control characters) U+00A0 - U+00FF // Latin-1 Supplement (no control characters) U+0100 - U+017F // Latin Extended-A U+0180 - U+024F // Latin Extended-B U+0250 - U+02AF // IPA Extensions U+02B0 - U+02FF // Spacing Modifier Letters U+0300 - U+036F // Combining Diacritical Marks U+0370 - U+03FF // Greek and Coptic U+0400 - U+04FF // Cyrillic U+0500 - U+052F // Cyrillic Supplement U+1D00 - U+1D7F // Phonetic Extensions U+1D80 - U+1DBF // Phonetic Extensions Supplement U+1DC0 - U+1DFF // Combining Diacritical Marks Supplement U+1E00 - U+1EFF // Latin Extended Additional U+1F00 - U+1FFF // Greek Extended U+2000 - U+206F // General Punctuation U+2070 - U+209F // Superscripts and Subscripts U+20A0 - U+20CF // Currency Symbols U+2150 - U+218F // Number Forms U+2460 - U+24FF // Enclosed Alphanumerics U+2C60 - U+2C7F // Latin Extended-C U+2DE0 - U+2DFF // Cyrillic Extended-A U+2E00 - U+2E7F // Supplemental Punctuation U+A640 - U+A69F // Cyrillic Extended-B U+A720 - U+A7FF // Latin Extended-D U+FB00 - U+FB06 // Alphab. Present. Forms (Latin Ligatures) U+1D400 - U+1D7FF // Mathematical Alphanumeric Symbols U+1F100 - U+1F1FF // Enclosed Alphanumeric Supplement FT_AUTOHINTER_SCRIPT_CJK Apply the CJK auto-hinter, covering Chinese, Japanese, Korean, old Vietnamese, and some other scripts. By default, characters from the following Unicode ranges are assigned to this submodule. U+1100 - U+11FF // Hangul Jamo U+2E80 - U+2EFF // CJK Radicals Supplement U+2F00 - U+2FDF // Kangxi Radicals U+2FF0 - U+2FFF // Ideographic Description Characters U+3000 - U+303F // CJK Symbols and Punctuation U+3040 - U+309F // Hiragana U+30A0 - U+30FF // Katakana U+3100 - U+312F // Bopomofo U+3130 - U+318F // Hangul Compatibility Jamo U+3190 - U+319F // Kanbun U+31A0 - U+31BF // Bopomofo Extended U+31C0 - U+31EF // CJK Strokes U+31F0 - U+31FF // Katakana Phonetic Extensions U+3200 - U+32FF // Enclosed CJK Letters and Months U+3300 - U+33FF // CJK Compatibility U+3400 - U+4DBF // CJK Unified Ideographs Extension A U+4DC0 - U+4DFF // Yijing Hexagram Symbols U+4E00 - U+9FFF // CJK Unified Ideographs U+A960 - U+A97F // Hangul Jamo Extended-A U+AC00 - U+D7AF // Hangul Syllables U+D7B0 - U+D7FF // Hangul Jamo Extended-B U+F900 - U+FAFF // CJK Compatibility Ideographs U+FE10 - U+FE1F // Vertical forms U+FE30 - U+FE4F // CJK Compatibility Forms U+FF00 - U+FFEF // Halfwidth and Fullwidth Forms U+1B000 - U+1B0FF // Kana Supplement U+1D300 - U+1D35F // Tai Xuan Hing Symbols U+1F200 - U+1F2FF // Enclosed Ideographic Supplement U+20000 - U+2A6DF // CJK Unified Ideographs Extension B U+2A700 - U+2B73F // CJK Unified Ideographs Extension C U+2B740 - U+2B81F // CJK Unified Ideographs Extension D U+2F800 - U+2FA1F // CJK Compatibility Ideographs Supplement FT_AUTOHINTER_SCRIPT_INDIC Apply the indic auto-hinter, covering all major scripts from the Indian sub-continent and some other related scripts like Thai, Lao, or Tibetan. By default, characters from the following Unicode ranges are assigned to this submodule. U+0900 - U+0DFF // Indic Range U+0F00 - U+0FFF // Tibetan U+1900 - U+194F // Limbu U+1B80 - U+1BBF // Sundanese U+A800 - U+A82F // Syloti Nagri U+ABC0 - U+ABFF // Meetei Mayek U+11800 - U+118DF // Sharada Note that currently Indic support is rudimentary only, missing blue zone support. since 2.4.11 FT_Prop_GlyphToScriptMap \u00b6 Defined in FT_DRIVER_H (freetype/ftdriver.h). typedef struct FT_Prop_GlyphToScriptMap_ { FT_Face face; FT_UShort * map; } FT_Prop_GlyphToScriptMap ; Experimental only The data exchange structure for the glyph-to-script-map property. since 2.4.11 fallback-script \u00b6 Experimental only If no auto-hinter script module can be assigned to a glyph, a fallback script gets assigned to it (see also the glyph-to-script-map property). By default, this is FT_AUTOHINTER_SCRIPT_CJK . Using the fallback-script property, this fallback value can be changed. note This property can be used with FT_Property_Get also. It's important to use the right timing for changing this value: The creation of the glyph-to-script map that eventually uses the fallback script value gets triggered either by setting or reading a face-specific property like glyph-to-script-map , or by auto-hinting any glyph from that face. In particular, if you have already created an FT_Face structure but not loaded any glyph (using the auto-hinter), a change of the fallback script will affect this face. example FT_Library library; FT_UInt fallback_script = FT_AUTOHINTER_SCRIPT_NONE; FT_Init_FreeType( &library ); FT_Property_Set( library, \"autofitter\", \"fallback-script\", &fallback_script ); since 2.4.11 default-script \u00b6 Experimental only If FreeType gets compiled with FT_CONFIG_OPTION_USE_HARFBUZZ to make the HarfBuzz library access OpenType features for getting better glyph coverages, this property sets the (auto-fitter) script to be used for the default (OpenType) script data of a font's GSUB table. Features for the default script are intended for all scripts not explicitly handled in GSUB; an example is a \u2018dlig\u2019 feature, containing the combination of the characters \u2018T\u2019, \u2018E\u2019, and \u2018L\u2019 to form a \u2018TEL\u2019 ligature. By default, this is FT_AUTOHINTER_SCRIPT_LATIN . Using the default-script property, this default value can be changed. note This property can be used with FT_Property_Get also. It's important to use the right timing for changing this value: The creation of the glyph-to-script map that eventually uses the default script value gets triggered either by setting or reading a face-specific property like glyph-to-script-map , or by auto-hinting any glyph from that face. In particular, if you have already created an FT_Face structure but not loaded any glyph (using the auto-hinter), a change of the default script will affect this face. example FT_Library library; FT_UInt default_script = FT_AUTOHINTER_SCRIPT_NONE; FT_Init_FreeType( &library ); FT_Property_Set( library, \"autofitter\", \"default-script\", &default_script ); since 2.5.3 increase-x-height \u00b6 For ppem values in the range 6 <= ppem <= increase-x-height , round up the font's x height much more often than normally. If the value is set to 0, which is the default, this feature is switched off. Use this property to improve the legibility of small font sizes if necessary. note This property can be used with FT_Property_Get also. Set this value right after calling FT_Set_Char_Size , but before loading any glyph (using the auto-hinter). example FT_Library library; FT_Face face; FT_Prop_IncreaseXHeight prop; FT_Init_FreeType( &library ); FT_New_Face( library, \"foo.ttf\", 0, &face ); FT_Set_Char_Size( face, 10 * 64, 0, 72, 0 ); prop.face = face; prop.limit = 14; FT_Property_Set( library, \"autofitter\", \"increase-x-height\", &prop ); since 2.4.11 FT_Prop_IncreaseXHeight \u00b6 Defined in FT_DRIVER_H (freetype/ftdriver.h). typedef struct FT_Prop_IncreaseXHeight_ { FT_Face face; FT_UInt limit; } FT_Prop_IncreaseXHeight ; The data exchange structure for the increase-x-height property. warping \u00b6 Obsolete This property was always experimental and probably never worked correctly. It was entirely removed from the FreeType 2 sources. This entry is only here for historical reference. Warping only worked in \u2018normal\u2019 auto-hinting mode replacing it. The idea of the code was to slightly scale and shift a glyph along the non-hinted dimension (which is usually the horizontal axis) so that as much of its segments were aligned (more or less) to the grid. To find out a glyph's optimal scaling and shifting value, various parameter combinations were tried and scored. since 2.6","title":"Driver properties"},{"location":"ft2-properties.html#driver-properties","text":"","title":"Driver properties"},{"location":"ft2-properties.html#synopsis","text":"Driver modules can be controlled by setting and unsetting properties, using the functions FT_Property_Set and FT_Property_Get . This section documents the available properties, together with auxiliary macros and structures.","title":"Synopsis"},{"location":"ft2-properties.html#ft_hinting_xxx","text":"Defined in FT_DRIVER_H (freetype/ftdriver.h). # define FT_HINTING_FREETYPE 0 # define FT_HINTING_ADOBE 1 /* these constants (introduced in 2.4.12) are deprecated */ # define FT_CFF_HINTING_FREETYPE FT_HINTING_FREETYPE # define FT_CFF_HINTING_ADOBE FT_HINTING_ADOBE A list of constants used for the hinting-engine property to select the hinting engine for CFF, Type 1, and CID fonts.","title":"FT_HINTING_XXX"},{"location":"ft2-properties.html#hinting-engine","text":"Thanks to Adobe, which contributed a new hinting (and parsing) engine, an application can select between \u2018freetype\u2019 and \u2018adobe\u2019 if compiled with CFF_CONFIG_OPTION_OLD_ENGINE . If this configuration macro isn't defined, \u2018hinting-engine\u2019 does nothing. The same holds for the Type 1 and CID modules if compiled with T1_CONFIG_OPTION_OLD_ENGINE . For the \u2018cff\u2019 module, the default engine is \u2018adobe\u2019. For both the \u2018type1\u2019 and \u2018t1cid\u2019 modules, the default engine is \u2018adobe\u2019, too.","title":"hinting-engine"},{"location":"ft2-properties.html#no-stem-darkening","text":"All glyphs that pass through the auto-hinter will be emboldened unless this property is set to TRUE. The same is true for the CFF, Type 1, and CID font modules if the \u2018Adobe\u2019 engine is selected (which is the default). Stem darkening emboldens glyphs at smaller sizes to make them more readable on common low-DPI screens when using linear alpha blending and gamma correction, see FT_Render_Glyph . When not using linear alpha blending and gamma correction, glyphs will appear heavy and fuzzy! Gamma correction essentially lightens fonts since shades of grey are shifted to higher pixel values (= higher brightness) to match the original intention to the reality of our screens. The side-effect is that glyphs \u2018thin out\u2019. Mac OS X and Adobe's proprietary font rendering library implement a counter-measure: stem darkening at smaller sizes where shades of gray dominate. By emboldening a glyph slightly in relation to its pixel size, individual pixels get higher coverage of filled-in outlines and are therefore \u2018blacker\u2019. This counteracts the \u2018thinning out\u2019 of glyphs, making text remain readable at smaller sizes. For the auto-hinter, stem-darkening is experimental currently and thus switched off by default (that is, no-stem-darkening is set to TRUE by default). Total consistency with the CFF driver is not achieved right now because the emboldening method differs and glyphs must be scaled down on the Y-axis to keep outline points inside their precomputed blue zones. The smaller the size (especially 9ppem and down), the higher the loss of emboldening versus the CFF driver. Note that stem darkening is never applied if FT_LOAD_NO_SCALE is set.","title":"no-stem-darkening"},{"location":"ft2-properties.html#darkening-parameters","text":"By default, the Adobe hinting engine, as used by the CFF, Type 1, and CID font drivers, darkens stems as follows (if the no-stem-darkening property isn't set): stem width <= 0.5px: darkening amount = 0.4px stem width = 1px: darkening amount = 0.275px stem width = 1.667px: darkening amount = 0.275px stem width >= 2.333px: darkening amount = 0px and piecewise linear in-between. At configuration time, these four control points can be set with the macro CFF_CONFIG_OPTION_DARKENING_PARAMETERS ; the CFF, Type 1, and CID drivers share these values. At runtime, the control points can be changed using the darkening-parameters property (see the example below that demonstrates this for the Type 1 driver). The x values give the stem width, and the y values the darkening amount. The unit is 1000 th of pixels. All coordinate values must be positive; the x values must be monotonically increasing; the y values must be monotonically decreasing and smaller than or equal to 500 (corresponding to half a pixel); the slope of each linear piece must be shallower than -1 (e.g., -.4). The auto-hinter provides this property, too, as an experimental feature. See no-stem-darkening for more.","title":"darkening-parameters"},{"location":"ft2-properties.html#random-seed","text":"By default, the seed value for the CFF \u2018random\u2019 operator and the similar \u20180 28 callothersubr pop\u2019 command for the Type 1 and CID drivers is set to a random value. However, mainly for debugging purposes, it is often necessary to use a known value as a seed so that the pseudo-random number sequences generated by \u2018random\u2019 are repeatable. The random-seed property does that. Its argument is a signed 32bit integer; if the value is zero or negative, the seed given by the intitialRandomSeed private DICT operator in a CFF file gets used (or a default value if there is no such operator). If the value is positive, use it instead of initialRandomSeed , which is consequently ignored.","title":"random-seed"},{"location":"ft2-properties.html#no-long-family-names","text":"If PCF_CONFIG_OPTION_LONG_FAMILY_NAMES is active while compiling FreeType, the PCF driver constructs long family names. There are many PCF fonts just called \u2018Fixed\u2019 which look completely different, and which have nothing to do with each other. When selecting \u2018Fixed\u2019 in KDE or Gnome one gets results that appear rather random, the style changes often if one changes the size and one cannot select some fonts at all. The improve this situation, the PCF module prepends the foundry name (plus a space) to the family name. It also checks whether there are \u2018wide\u2019 characters; all put together, family names like \u2018Sony Fixed\u2019 or \u2018Misc Fixed Wide\u2019 are constructed. If no-long-family-names is set, this feature gets switched off.","title":"no-long-family-names"},{"location":"ft2-properties.html#tt_interpreter_version_xxx","text":"Defined in FT_DRIVER_H (freetype/ftdriver.h). # define TT_INTERPRETER_VERSION_35 35 # define TT_INTERPRETER_VERSION_38 38 # define TT_INTERPRETER_VERSION_40 40 A list of constants used for the interpreter-version property to select the hinting engine for Truetype fonts. The numeric value in the constant names represents the version number as returned by the \u2018GETINFO\u2019 bytecode instruction.","title":"TT_INTERPRETER_VERSION_XXX"},{"location":"ft2-properties.html#interpreter-version","text":"Currently, three versions are available, two representing the bytecode interpreter with subpixel hinting support (old \u2018Infinality\u2019 code and new stripped-down and higher performance \u2018minimal\u2019 code) and one without, respectively. The default is subpixel support if TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined, and no subpixel support otherwise (since it isn't available then). If subpixel hinting is on, many TrueType bytecode instructions behave differently compared to B/W or grayscale rendering (except if \u2018native ClearType\u2019 is selected by the font). Microsoft's main idea is to render at a much increased horizontal resolution, then sampling down the created output to subpixel precision. However, many older fonts are not suited to this and must be specially taken care of by applying (hardcoded) tweaks in Microsoft's interpreter. Details on subpixel hinting and some of the necessary tweaks can be found in Greg Hitchcock's whitepaper at \u2018 https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx \u2019. Note that FreeType currently doesn't really \u2018subpixel hint\u2019 (6x1, 6x2, or 6x5 supersampling) like discussed in the paper. Depending on the chosen interpreter, it simply ignores instructions on vertical stems to arrive at very similar results.","title":"interpreter-version"},{"location":"ft2-properties.html#svg-hooks","text":"Set up the interface between FreeType and an extern SVG rendering library like \u2018librsvg\u2019. All details on the function hooks can be found in section \u2018 OpenType SVG Fonts \u2019.","title":"svg-hooks"},{"location":"ft2-properties.html#glyph-to-script-map","text":"Experimental only The auto-hinter provides various script modules to hint glyphs. Examples of supported scripts are Latin or CJK. Before a glyph is auto-hinted, the Unicode character map of the font gets examined, and the script is then determined based on Unicode character ranges, see below. OpenType fonts, however, often provide much more glyphs than character codes (small caps, superscripts, ligatures, swashes, etc.), to be controlled by so-called \u2018features\u2019. Handling OpenType features can be quite complicated and thus needs a separate library on top of FreeType. The mapping between glyph indices and scripts (in the auto-hinter sense, see the FT_AUTOHINTER_SCRIPT_XXX values) is stored as an array with num_glyphs elements, as found in the font's FT_Face structure. The glyph-to-script-map property returns a pointer to this array, which can be modified as needed. Note that the modification should happen before the first glyph gets processed by the auto-hinter so that the global analysis of the font shapes actually uses the modified mapping.","title":"glyph-to-script-map"},{"location":"ft2-properties.html#ft_autohinter_script_xxx","text":"Defined in FT_DRIVER_H (freetype/ftdriver.h). # define FT_AUTOHINTER_SCRIPT_NONE 0 # define FT_AUTOHINTER_SCRIPT_LATIN 1 # define FT_AUTOHINTER_SCRIPT_CJK 2 # define FT_AUTOHINTER_SCRIPT_INDIC 3 Experimental only A list of constants used for the glyph-to-script-map property to specify the script submodule the auto-hinter should use for hinting a particular glyph.","title":"FT_AUTOHINTER_SCRIPT_XXX"},{"location":"ft2-properties.html#ft_prop_glyphtoscriptmap","text":"Defined in FT_DRIVER_H (freetype/ftdriver.h). typedef struct FT_Prop_GlyphToScriptMap_ { FT_Face face; FT_UShort * map; } FT_Prop_GlyphToScriptMap ; Experimental only The data exchange structure for the glyph-to-script-map property.","title":"FT_Prop_GlyphToScriptMap"},{"location":"ft2-properties.html#fallback-script","text":"Experimental only If no auto-hinter script module can be assigned to a glyph, a fallback script gets assigned to it (see also the glyph-to-script-map property). By default, this is FT_AUTOHINTER_SCRIPT_CJK . Using the fallback-script property, this fallback value can be changed.","title":"fallback-script"},{"location":"ft2-properties.html#default-script","text":"Experimental only If FreeType gets compiled with FT_CONFIG_OPTION_USE_HARFBUZZ to make the HarfBuzz library access OpenType features for getting better glyph coverages, this property sets the (auto-fitter) script to be used for the default (OpenType) script data of a font's GSUB table. Features for the default script are intended for all scripts not explicitly handled in GSUB; an example is a \u2018dlig\u2019 feature, containing the combination of the characters \u2018T\u2019, \u2018E\u2019, and \u2018L\u2019 to form a \u2018TEL\u2019 ligature. By default, this is FT_AUTOHINTER_SCRIPT_LATIN . Using the default-script property, this default value can be changed.","title":"default-script"},{"location":"ft2-properties.html#increase-x-height","text":"For ppem values in the range 6 <= ppem <= increase-x-height , round up the font's x height much more often than normally. If the value is set to 0, which is the default, this feature is switched off. Use this property to improve the legibility of small font sizes if necessary.","title":"increase-x-height"},{"location":"ft2-properties.html#ft_prop_increasexheight","text":"Defined in FT_DRIVER_H (freetype/ftdriver.h). typedef struct FT_Prop_IncreaseXHeight_ { FT_Face face; FT_UInt limit; } FT_Prop_IncreaseXHeight ; The data exchange structure for the increase-x-height property.","title":"FT_Prop_IncreaseXHeight"},{"location":"ft2-properties.html#warping","text":"Obsolete This property was always experimental and probably never worked correctly. It was entirely removed from the FreeType 2 sources. This entry is only here for historical reference. Warping only worked in \u2018normal\u2019 auto-hinting mode replacing it. The idea of the code was to slightly scale and shift a glyph along the non-hinted dimension (which is usually the horizontal axis) so that as much of its segments were aligned (more or less) to the grid. To find out a glyph's optimal scaling and shifting value, various parameter combinations were tried and scored.","title":"warping"},{"location":"ft2-quick_advance.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb Quick retrieval of advance values Quick retrieval of advance values \u00b6 Synopsis \u00b6 This section contains functions to quickly extract advance values without handling glyph outlines, if possible. FT_Get_Advance \u00b6 Defined in FT_ADVANCES_H (freetype/ftadvanc.h). FT_EXPORT( FT_Error ) FT_Get_Advance ( FT_Face face, FT_UInt gindex, FT_Int32 load_flags, FT_Fixed *padvance ); Retrieve the advance value of a given glyph outline in an FT_Face . input face The source FT_Face handle. gindex The glyph index. load_flags A set of bit flags similar to those used when calling FT_Load_Glyph , used to determine what kind of advances you need. output padvance The advance value. If scaling is performed (based on the value of load_flags ), the advance value is in 16.16 format. Otherwise, it is in font units. If FT_LOAD_VERTICAL_LAYOUT is set, this is the vertical advance corresponding to a vertical layout. Otherwise, it is the horizontal advance in a horizontal layout. return FreeType error code. 0 means success. note This function may fail if you use FT_ADVANCE_FLAG_FAST_ONLY and if the corresponding font backend doesn't have a quick way to retrieve the advances. A scaled advance is returned in 16.16 format but isn't transformed by the affine transformation specified by FT_Set_Transform . FT_Get_Advances \u00b6 Defined in FT_ADVANCES_H (freetype/ftadvanc.h). FT_EXPORT( FT_Error ) FT_Get_Advances ( FT_Face face, FT_UInt start, FT_UInt count, FT_Int32 load_flags, FT_Fixed *padvances ); Retrieve the advance values of several glyph outlines in an FT_Face . input face The source FT_Face handle. start The first glyph index. count The number of advance values you want to retrieve. load_flags A set of bit flags similar to those used when calling FT_Load_Glyph . output padvance The advance values. This array, to be provided by the caller, must contain at least count elements. If scaling is performed (based on the value of load_flags ), the advance values are in 16.16 format. Otherwise, they are in font units. If FT_LOAD_VERTICAL_LAYOUT is set, these are the vertical advances corresponding to a vertical layout. Otherwise, they are the horizontal advances in a horizontal layout. return FreeType error code. 0 means success. note This function may fail if you use FT_ADVANCE_FLAG_FAST_ONLY and if the corresponding font backend doesn't have a quick way to retrieve the advances. Scaled advances are returned in 16.16 format but aren't transformed by the affine transformation specified by FT_Set_Transform . FT_ADVANCE_FLAG_FAST_ONLY \u00b6 Defined in FT_ADVANCES_H (freetype/ftadvanc.h). # define FT_ADVANCE_FLAG_FAST_ONLY 0x20000000L A bit-flag to be OR-ed with the flags parameter of the FT_Get_Advance and FT_Get_Advances functions. If set, it indicates that you want these functions to fail if the corresponding hinting mode or font driver doesn't allow for very quick advance computation. Typically, glyphs that are either unscaled, unhinted, bitmapped, or light-hinted can have their advance width computed very quickly. Normal and bytecode hinted modes that require loading, scaling, and hinting of the glyph outline, are extremely slow by comparison.","title":"Quick retrieval of advance values"},{"location":"ft2-quick_advance.html#quick-retrieval-of-advance-values","text":"","title":"Quick retrieval of advance values"},{"location":"ft2-quick_advance.html#synopsis","text":"This section contains functions to quickly extract advance values without handling glyph outlines, if possible.","title":"Synopsis"},{"location":"ft2-quick_advance.html#ft_get_advance","text":"Defined in FT_ADVANCES_H (freetype/ftadvanc.h). FT_EXPORT( FT_Error ) FT_Get_Advance ( FT_Face face, FT_UInt gindex, FT_Int32 load_flags, FT_Fixed *padvance ); Retrieve the advance value of a given glyph outline in an FT_Face .","title":"FT_Get_Advance"},{"location":"ft2-quick_advance.html#ft_get_advances","text":"Defined in FT_ADVANCES_H (freetype/ftadvanc.h). FT_EXPORT( FT_Error ) FT_Get_Advances ( FT_Face face, FT_UInt start, FT_UInt count, FT_Int32 load_flags, FT_Fixed *padvances ); Retrieve the advance values of several glyph outlines in an FT_Face .","title":"FT_Get_Advances"},{"location":"ft2-quick_advance.html#ft_advance_flag_fast_only","text":"Defined in FT_ADVANCES_H (freetype/ftadvanc.h). # define FT_ADVANCE_FLAG_FAST_ONLY 0x20000000L A bit-flag to be OR-ed with the flags parameter of the FT_Get_Advance and FT_Get_Advances functions. If set, it indicates that you want these functions to fail if the corresponding hinting mode or font driver doesn't allow for very quick advance computation. Typically, glyphs that are either unscaled, unhinted, bitmapped, or light-hinted can have their advance width computed very quickly. Normal and bytecode hinted modes that require loading, scaling, and hinting of the glyph outline, are extremely slow by comparison.","title":"FT_ADVANCE_FLAG_FAST_ONLY"},{"location":"ft2-raster.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb Scanline Converter Scanline Converter \u00b6 Synopsis \u00b6 A raster or a rasterizer is a scan converter in charge of producing a pixel coverage bitmap that can be used as an alpha channel when compositing a glyph with a background. FreeType comes with two rasterizers: bilevel raster1 and anti-aliased smooth are two separate modules. They are usually called from the high-level FT_Load_Glyph or FT_Render_Glyph functions and produce the entire coverage bitmap at once, while staying largely invisible to users. Instead of working with complete coverage bitmaps, it is also possible to intercept consecutive pixel runs on the same scanline with the same coverage, called spans , and process them individually. Only the smooth rasterizer permits this when calling FT_Outline_Render with FT_Raster_Params as described below. Working with either complete bitmaps or spans it is important to think of them as colorless coverage objects suitable as alpha channels to blend arbitrary colors with a background. For best results, it is recommended to use gamma correction, too. This section also describes the public API needed to set up alternative FT_Renderer modules. FT_Span \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Span_ { short x; unsigned short len; unsigned char coverage; } FT_Span ; A structure to model a single span of consecutive pixels when rendering an anti-aliased bitmap. fields x The span's horizontal start position. len The span's length in pixels. coverage The span color/coverage, ranging from 0 (background) to 255 (foreground). note This structure is used by the span drawing callback type named FT_SpanFunc that takes the y coordinate of the span as a parameter. The anti-aliased rasterizer produces coverage values from 0 to 255, that is, from completely transparent to completely opaque. FT_SpanFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef void (* FT_SpanFunc )( int y, int count, const FT_Span * spans, void * user ); # define FT_Raster_Span_Func FT_SpanFunc A function used as a call-back by the anti-aliased renderer in order to let client applications draw themselves the pixel spans on each scan line. input y The scanline's upward y coordinate. count The number of spans to draw on this scanline. spans A table of count spans to draw on the scanline. user User-supplied data that is passed to the callback. note This callback allows client applications to directly render the spans of the anti-aliased bitmap to any kind of surfaces. This can be used to write anti-aliased outlines directly to a given background bitmap using alpha compositing. It can also be used for oversampling and averaging. FT_Raster_Params \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Raster_Params_ { const FT_Bitmap * target; const void * source; int flags; FT_SpanFunc gray_spans; FT_SpanFunc black_spans; /* unused */ FT_Raster_BitTest_Func bit_test; /* unused */ FT_Raster_BitSet_Func bit_set; /* unused */ void * user; FT_BBox clip_box; } FT_Raster_Params ; A structure to hold the parameters used by a raster's render function, passed as an argument to FT_Outline_Render . fields target The target bitmap. source A pointer to the source glyph image (e.g., an FT_Outline ). flags The rendering flags. gray_spans The gray span drawing callback. black_spans Unused. bit_test Unused. bit_set Unused. user User-supplied data that is passed to each drawing callback. clip_box An optional span clipping box expressed in integer pixels (not in 26.6 fixed-point units). note The FT_RASTER_FLAG_AA bit flag must be set in the flags to generate an anti-aliased glyph bitmap, otherwise a monochrome bitmap is generated. The target should have appropriate pixel mode and its dimensions define the clipping region. If both FT_RASTER_FLAG_AA and FT_RASTER_FLAG_DIRECT bit flags are set in flags , the raster calls an FT_SpanFunc callback gray_spans with user data as an argument ignoring target . This allows direct composition over a pre-existing user surface to perform the span drawing and composition. To optionally clip the spans, set the FT_RASTER_FLAG_CLIP flag and clip_box . The monochrome raster does not support the direct mode. The gray-level rasterizer always uses 256 gray levels. If you want fewer gray levels, you have to use FT_RASTER_FLAG_DIRECT and reduce the levels in the callback function. FT_RASTER_FLAG_XXX \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). # define FT_RASTER_FLAG_DEFAULT 0x0 # define FT_RASTER_FLAG_AA 0x1 # define FT_RASTER_FLAG_DIRECT 0x2 # define FT_RASTER_FLAG_CLIP 0x4 # define FT_RASTER_FLAG_SDF 0x8 /* these constants are deprecated; use the corresponding */ /* ` FT_RASTER_FLAG_XXX ` values instead */ # define ft_raster_flag_default FT_RASTER_FLAG_DEFAULT # define ft_raster_flag_aa FT_RASTER_FLAG_AA # define ft_raster_flag_direct FT_RASTER_FLAG_DIRECT # define ft_raster_flag_clip FT_RASTER_FLAG_CLIP A list of bit flag constants as used in the flags field of a FT_Raster_Params structure. values FT_RASTER_FLAG_DEFAULT This value is 0. FT_RASTER_FLAG_AA This flag is set to indicate that an anti-aliased glyph image should be generated. Otherwise, it will be monochrome (1-bit). FT_RASTER_FLAG_DIRECT This flag is set to indicate direct rendering. In this mode, client applications must provide their own span callback. This lets them directly draw or compose over an existing bitmap. If this bit is not set, the target pixmap's buffer must be zeroed before rendering and the output will be clipped to its size. Direct rendering is only possible with anti-aliased glyphs. FT_RASTER_FLAG_CLIP This flag is only used in direct rendering mode. If set, the output will be clipped to a box specified in the clip_box field of the FT_Raster_Params structure. Otherwise, the clip_box is effectively set to the bounding box and all spans are generated. FT_RASTER_FLAG_SDF This flag is set to indicate that a signed distance field glyph image should be generated. This is only used while rendering with the FT_RENDER_MODE_SDF render mode. FT_Raster \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_RasterRec_* FT_Raster ; An opaque handle (pointer) to a raster object. Each object can be used independently to convert an outline into a bitmap or pixmap. note In FreeType 2, all rasters are now encapsulated within specific FT_Renderer modules and only used in their context. FT_Raster_NewFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Raster_NewFunc )( void * memory, FT_Raster * raster ); # define FT_Raster_New_Func FT_Raster_NewFunc A function used to create a new raster object. input memory A handle to the memory allocator. output raster A handle to the new raster object. return Error code. 0 means success. note The memory parameter is a typeless pointer in order to avoid un-wanted dependencies on the rest of the FreeType code. In practice, it is an FT_Memory object, i.e., a handle to the standard FreeType memory allocator. However, this field can be completely ignored by a given raster implementation. FT_Raster_DoneFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef void (* FT_Raster_DoneFunc )( FT_Raster raster ); # define FT_Raster_Done_Func FT_Raster_DoneFunc A function used to destroy a given raster object. input raster A handle to the raster object. FT_Raster_ResetFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef void (* FT_Raster_ResetFunc )( FT_Raster raster, unsigned char * pool_base, unsigned long pool_size ); # define FT_Raster_Reset_Func FT_Raster_ResetFunc FreeType used to provide an area of memory called the \u2018render pool\u2019 available to all registered rasterizers. This was not thread safe, however, and now FreeType never allocates this pool. This function is called after a new raster object is created. input raster A handle to the new raster object. pool_base Previously, the address in memory of the render pool. Set this to NULL . pool_size Previously, the size in bytes of the render pool. Set this to 0. note Rasterizers should rely on dynamic or stack allocation if they want to (a handle to the memory allocator is passed to the rasterizer constructor). FT_Raster_SetModeFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Raster_SetModeFunc )( FT_Raster raster, unsigned long mode, void * args ); # define FT_Raster_Set_Mode_Func FT_Raster_SetModeFunc This function is a generic facility to change modes or attributes in a given raster. This can be used for debugging purposes, or simply to allow implementation-specific \u2018features\u2019 in a given raster module. input raster A handle to the new raster object. mode A 4-byte tag used to name the mode or property. args A pointer to the new mode/property to use. FT_Raster_RenderFunc \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Raster_RenderFunc )( FT_Raster raster, const FT_Raster_Params * params ); # define FT_Raster_Render_Func FT_Raster_RenderFunc Invoke a given raster to scan-convert a given glyph image into a target bitmap. input raster A handle to the raster object. params A pointer to an FT_Raster_Params structure used to store the rendering parameters. return Error code. 0 means success. note The exact format of the source image depends on the raster's glyph format defined in its FT_Raster_Funcs structure. It can be an FT_Outline or anything else in order to support a large array of glyph formats. Note also that the render function can fail and return a FT_Err_Unimplemented_Feature error code if the raster used does not support direct composition. FT_Raster_Funcs \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Raster_Funcs_ { FT_Glyph_Format glyph_format; FT_Raster_NewFunc raster_new; FT_Raster_ResetFunc raster_reset; FT_Raster_SetModeFunc raster_set_mode; FT_Raster_RenderFunc raster_render; FT_Raster_DoneFunc raster_done; } FT_Raster_Funcs ; A structure used to describe a given raster class to the library. fields glyph_format The supported glyph format for this raster. raster_new The raster constructor. raster_reset Used to reset the render pool within the raster. raster_render A function to render a glyph into a given bitmap. raster_done The raster destructor. FT_Raster_BitTest_Func \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Raster_BitTest_Func )( int y, int x, void * user ); Deprecated, unimplemented. FT_Raster_BitSet_Func \u00b6 Defined in FT_IMAGE_H (freetype/ftimage.h). typedef void (* FT_Raster_BitSet_Func )( int y, int x, void * user ); Deprecated, unimplemented.","title":"Scanline Converter"},{"location":"ft2-raster.html#scanline-converter","text":"","title":"Scanline Converter"},{"location":"ft2-raster.html#synopsis","text":"A raster or a rasterizer is a scan converter in charge of producing a pixel coverage bitmap that can be used as an alpha channel when compositing a glyph with a background. FreeType comes with two rasterizers: bilevel raster1 and anti-aliased smooth are two separate modules. They are usually called from the high-level FT_Load_Glyph or FT_Render_Glyph functions and produce the entire coverage bitmap at once, while staying largely invisible to users. Instead of working with complete coverage bitmaps, it is also possible to intercept consecutive pixel runs on the same scanline with the same coverage, called spans , and process them individually. Only the smooth rasterizer permits this when calling FT_Outline_Render with FT_Raster_Params as described below. Working with either complete bitmaps or spans it is important to think of them as colorless coverage objects suitable as alpha channels to blend arbitrary colors with a background. For best results, it is recommended to use gamma correction, too. This section also describes the public API needed to set up alternative FT_Renderer modules.","title":"Synopsis"},{"location":"ft2-raster.html#ft_span","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Span_ { short x; unsigned short len; unsigned char coverage; } FT_Span ; A structure to model a single span of consecutive pixels when rendering an anti-aliased bitmap.","title":"FT_Span"},{"location":"ft2-raster.html#ft_spanfunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef void (* FT_SpanFunc )( int y, int count, const FT_Span * spans, void * user ); # define FT_Raster_Span_Func FT_SpanFunc A function used as a call-back by the anti-aliased renderer in order to let client applications draw themselves the pixel spans on each scan line.","title":"FT_SpanFunc"},{"location":"ft2-raster.html#ft_raster_params","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Raster_Params_ { const FT_Bitmap * target; const void * source; int flags; FT_SpanFunc gray_spans; FT_SpanFunc black_spans; /* unused */ FT_Raster_BitTest_Func bit_test; /* unused */ FT_Raster_BitSet_Func bit_set; /* unused */ void * user; FT_BBox clip_box; } FT_Raster_Params ; A structure to hold the parameters used by a raster's render function, passed as an argument to FT_Outline_Render .","title":"FT_Raster_Params"},{"location":"ft2-raster.html#ft_raster_flag_xxx","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). # define FT_RASTER_FLAG_DEFAULT 0x0 # define FT_RASTER_FLAG_AA 0x1 # define FT_RASTER_FLAG_DIRECT 0x2 # define FT_RASTER_FLAG_CLIP 0x4 # define FT_RASTER_FLAG_SDF 0x8 /* these constants are deprecated; use the corresponding */ /* ` FT_RASTER_FLAG_XXX ` values instead */ # define ft_raster_flag_default FT_RASTER_FLAG_DEFAULT # define ft_raster_flag_aa FT_RASTER_FLAG_AA # define ft_raster_flag_direct FT_RASTER_FLAG_DIRECT # define ft_raster_flag_clip FT_RASTER_FLAG_CLIP A list of bit flag constants as used in the flags field of a FT_Raster_Params structure.","title":"FT_RASTER_FLAG_XXX"},{"location":"ft2-raster.html#ft_raster","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_RasterRec_* FT_Raster ; An opaque handle (pointer) to a raster object. Each object can be used independently to convert an outline into a bitmap or pixmap.","title":"FT_Raster"},{"location":"ft2-raster.html#ft_raster_newfunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Raster_NewFunc )( void * memory, FT_Raster * raster ); # define FT_Raster_New_Func FT_Raster_NewFunc A function used to create a new raster object.","title":"FT_Raster_NewFunc"},{"location":"ft2-raster.html#ft_raster_donefunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef void (* FT_Raster_DoneFunc )( FT_Raster raster ); # define FT_Raster_Done_Func FT_Raster_DoneFunc A function used to destroy a given raster object.","title":"FT_Raster_DoneFunc"},{"location":"ft2-raster.html#ft_raster_resetfunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef void (* FT_Raster_ResetFunc )( FT_Raster raster, unsigned char * pool_base, unsigned long pool_size ); # define FT_Raster_Reset_Func FT_Raster_ResetFunc FreeType used to provide an area of memory called the \u2018render pool\u2019 available to all registered rasterizers. This was not thread safe, however, and now FreeType never allocates this pool. This function is called after a new raster object is created.","title":"FT_Raster_ResetFunc"},{"location":"ft2-raster.html#ft_raster_setmodefunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Raster_SetModeFunc )( FT_Raster raster, unsigned long mode, void * args ); # define FT_Raster_Set_Mode_Func FT_Raster_SetModeFunc This function is a generic facility to change modes or attributes in a given raster. This can be used for debugging purposes, or simply to allow implementation-specific \u2018features\u2019 in a given raster module.","title":"FT_Raster_SetModeFunc"},{"location":"ft2-raster.html#ft_raster_renderfunc","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Raster_RenderFunc )( FT_Raster raster, const FT_Raster_Params * params ); # define FT_Raster_Render_Func FT_Raster_RenderFunc Invoke a given raster to scan-convert a given glyph image into a target bitmap.","title":"FT_Raster_RenderFunc"},{"location":"ft2-raster.html#ft_raster_funcs","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef struct FT_Raster_Funcs_ { FT_Glyph_Format glyph_format; FT_Raster_NewFunc raster_new; FT_Raster_ResetFunc raster_reset; FT_Raster_SetModeFunc raster_set_mode; FT_Raster_RenderFunc raster_render; FT_Raster_DoneFunc raster_done; } FT_Raster_Funcs ; A structure used to describe a given raster class to the library.","title":"FT_Raster_Funcs"},{"location":"ft2-raster.html#ft_raster_bittest_func","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef int (* FT_Raster_BitTest_Func )( int y, int x, void * user ); Deprecated, unimplemented.","title":"FT_Raster_BitTest_Func"},{"location":"ft2-raster.html#ft_raster_bitset_func","text":"Defined in FT_IMAGE_H (freetype/ftimage.h). typedef void (* FT_Raster_BitSet_Func )( int y, int x, void * user ); Deprecated, unimplemented.","title":"FT_Raster_BitSet_Func"},{"location":"ft2-sfnt_names.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb SFNT Names SFNT Names \u00b6 Synopsis \u00b6 The TrueType and OpenType specifications allow the inclusion of a special names table (\u2018name\u2019) in font files. This table contains textual (and internationalized) information regarding the font, like family name, copyright, version, etc. The definitions below are used to access them if available. Note that this has nothing to do with glyph names! FT_SfntName \u00b6 Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). typedef struct FT_SfntName_ { FT_UShort platform_id; FT_UShort encoding_id; FT_UShort language_id; FT_UShort name_id; FT_Byte * string; /* this string is *not* null-terminated! */ FT_UInt string_len; /* in bytes */ } FT_SfntName ; A structure used to model an SFNT \u2018name\u2019 table entry. fields platform_id The platform ID for string . See TT_PLATFORM_XXX for possible values. encoding_id The encoding ID for string . See TT_APPLE_ID_XXX , TT_MAC_ID_XXX , TT_ISO_ID_XXX , TT_MS_ID_XXX , and TT_ADOBE_ID_XXX for possible values. language_id The language ID for string . See TT_MAC_LANGID_XXX and TT_MS_LANGID_XXX for possible values. Registered OpenType values for language_id are always smaller than 0x8000; values equal or larger than 0x8000 usually indicate a language tag string (introduced in OpenType version 1.6). Use function FT_Get_Sfnt_LangTag with language_id as its argument to retrieve the associated language tag. name_id An identifier for string . See TT_NAME_ID_XXX for possible values. string The \u2018name\u2019 string. Note that its format differs depending on the (platform,encoding) pair, being either a string of bytes (without a terminating NULL byte) or containing UTF-16BE entities. string_len The length of string in bytes. note Please refer to the TrueType or OpenType specification for more details. FT_Get_Sfnt_Name_Count \u00b6 Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). FT_EXPORT( FT_UInt ) FT_Get_Sfnt_Name_Count ( FT_Face face ); Retrieve the number of name strings in the SFNT \u2018name\u2019 table. input face A handle to the source face. return The number of strings in the \u2018name\u2019 table. note This function always returns an error if the config macro TT_CONFIG_OPTION_SFNT_NAMES is not defined in ftoption.h . FT_Get_Sfnt_Name \u00b6 Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). FT_EXPORT( FT_Error ) FT_Get_Sfnt_Name ( FT_Face face, FT_UInt idx, FT_SfntName *aname ); Retrieve a string of the SFNT \u2018name\u2019 table for a given index. input face A handle to the source face. idx The index of the \u2018name\u2019 string. output aname The indexed FT_SfntName structure. return FreeType error code. 0 means success. note The string array returned in the aname structure is not null-terminated. Note that you don't have to deallocate string by yourself; FreeType takes care of it if you call FT_Done_Face . Use FT_Get_Sfnt_Name_Count to get the total number of available \u2018name\u2019 table entries, then do a loop until you get the right platform, encoding, and name ID. \u2018name\u2019 table format 1 entries can use language tags also, see FT_Get_Sfnt_LangTag . This function always returns an error if the config macro TT_CONFIG_OPTION_SFNT_NAMES is not defined in ftoption.h . FT_SfntLangTag \u00b6 Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). typedef struct FT_SfntLangTag_ { FT_Byte * string; /* this string is *not* null-terminated! */ FT_UInt string_len; /* in bytes */ } FT_SfntLangTag ; A structure to model a language tag entry from an SFNT \u2018name\u2019 table. fields string The language tag string, encoded in UTF-16BE (without trailing NULL bytes). string_len The length of string in bytes . note Please refer to the TrueType or OpenType specification for more details. since 2.8 FT_Get_Sfnt_LangTag \u00b6 Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). FT_EXPORT( FT_Error ) FT_Get_Sfnt_LangTag ( FT_Face face, FT_UInt langID, FT_SfntLangTag *alangTag ); Retrieve the language tag associated with a language ID of an SFNT \u2018name\u2019 table entry. input face A handle to the source face. langID The language ID, as returned by FT_Get_Sfnt_Name . This is always a value larger than 0x8000. output alangTag The language tag associated with the \u2018name\u2019 table entry's language ID. return FreeType error code. 0 means success. note The string array returned in the alangTag structure is not null-terminated. Note that you don't have to deallocate string by yourself; FreeType takes care of it if you call FT_Done_Face . Only \u2018name\u2019 table format 1 supports language tags. For format 0 tables, this function always returns FT_Err_Invalid_Table. For invalid format 1 language ID values, FT_Err_Invalid_Argument is returned. This function always returns an error if the config macro TT_CONFIG_OPTION_SFNT_NAMES is not defined in ftoption.h . since 2.8","title":"SFNT Names"},{"location":"ft2-sfnt_names.html#sfnt-names","text":"","title":"SFNT Names"},{"location":"ft2-sfnt_names.html#synopsis","text":"The TrueType and OpenType specifications allow the inclusion of a special names table (\u2018name\u2019) in font files. This table contains textual (and internationalized) information regarding the font, like family name, copyright, version, etc. The definitions below are used to access them if available. Note that this has nothing to do with glyph names!","title":"Synopsis"},{"location":"ft2-sfnt_names.html#ft_sfntname","text":"Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). typedef struct FT_SfntName_ { FT_UShort platform_id; FT_UShort encoding_id; FT_UShort language_id; FT_UShort name_id; FT_Byte * string; /* this string is *not* null-terminated! */ FT_UInt string_len; /* in bytes */ } FT_SfntName ; A structure used to model an SFNT \u2018name\u2019 table entry.","title":"FT_SfntName"},{"location":"ft2-sfnt_names.html#ft_get_sfnt_name_count","text":"Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). FT_EXPORT( FT_UInt ) FT_Get_Sfnt_Name_Count ( FT_Face face ); Retrieve the number of name strings in the SFNT \u2018name\u2019 table.","title":"FT_Get_Sfnt_Name_Count"},{"location":"ft2-sfnt_names.html#ft_get_sfnt_name","text":"Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). FT_EXPORT( FT_Error ) FT_Get_Sfnt_Name ( FT_Face face, FT_UInt idx, FT_SfntName *aname ); Retrieve a string of the SFNT \u2018name\u2019 table for a given index.","title":"FT_Get_Sfnt_Name"},{"location":"ft2-sfnt_names.html#ft_sfntlangtag","text":"Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). typedef struct FT_SfntLangTag_ { FT_Byte * string; /* this string is *not* null-terminated! */ FT_UInt string_len; /* in bytes */ } FT_SfntLangTag ; A structure to model a language tag entry from an SFNT \u2018name\u2019 table.","title":"FT_SfntLangTag"},{"location":"ft2-sfnt_names.html#ft_get_sfnt_langtag","text":"Defined in FT_SFNT_NAMES_H (freetype/ftsnames.h). FT_EXPORT( FT_Error ) FT_Get_Sfnt_LangTag ( FT_Face face, FT_UInt langID, FT_SfntLangTag *alangTag ); Retrieve the language tag associated with a language ID of an SFNT \u2018name\u2019 table entry.","title":"FT_Get_Sfnt_LangTag"},{"location":"ft2-sizes_management.html","text":"FreeType \u00bb Docs \u00bb Extended API \u00bb Size Management Size Management \u00b6 Synopsis \u00b6 When creating a new face object (e.g., with FT_New_Face ), an FT_Size object is automatically created and used to store all pixel-size dependent information, available in the face->size field. It is however possible to create more sizes for a given face, mostly in order to manage several character pixel sizes of the same font family and style. See FT_New_Size and FT_Done_Size . Note that FT_Set_Pixel_Sizes and FT_Set_Char_Size only modify the contents of the current \u2018active\u2019 size; you thus need to use FT_Activate_Size to change it. 99% of applications won't need the functions provided here, especially if they use the caching sub-system, so be cautious when using these. FT_New_Size \u00b6 Defined in FT_SIZES_H (freetype/ftsizes.h). FT_EXPORT( FT_Error ) FT_New_Size ( FT_Face face, FT_Size * size ); Create a new size object from a given face object. input face A handle to a parent face object. output asize A handle to a new size object. return FreeType error code. 0 means success. note You need to call FT_Activate_Size in order to select the new size for upcoming calls to FT_Set_Pixel_Sizes , FT_Set_Char_Size , FT_Load_Glyph , FT_Load_Char , etc. FT_Done_Size \u00b6 Defined in FT_SIZES_H (freetype/ftsizes.h). FT_EXPORT( FT_Error ) FT_Done_Size ( FT_Size size ); Discard a given size object. Note that FT_Done_Face automatically discards all size objects allocated with FT_New_Size . input size A handle to a target size object. return FreeType error code. 0 means success. FT_Activate_Size \u00b6 Defined in FT_SIZES_H (freetype/ftsizes.h). FT_EXPORT( FT_Error ) FT_Activate_Size ( FT_Size size ); Even though it is possible to create several size objects for a given face (see FT_New_Size for details), functions like FT_Load_Glyph or FT_Load_Char only use the one that has been activated last to determine the \u2018current character pixel size\u2019. This function can be used to \u2018activate\u2019 a previously created size object. input size A handle to a target size object. return FreeType error code. 0 means success. note If face is the size's parent face object, this function changes the value of face->size to the input size handle.","title":"Size Management"},{"location":"ft2-sizes_management.html#size-management","text":"","title":"Size Management"},{"location":"ft2-sizes_management.html#synopsis","text":"When creating a new face object (e.g., with FT_New_Face ), an FT_Size object is automatically created and used to store all pixel-size dependent information, available in the face->size field. It is however possible to create more sizes for a given face, mostly in order to manage several character pixel sizes of the same font family and style. See FT_New_Size and FT_Done_Size . Note that FT_Set_Pixel_Sizes and FT_Set_Char_Size only modify the contents of the current \u2018active\u2019 size; you thus need to use FT_Activate_Size to change it. 99% of applications won't need the functions provided here, especially if they use the caching sub-system, so be cautious when using these.","title":"Synopsis"},{"location":"ft2-sizes_management.html#ft_new_size","text":"Defined in FT_SIZES_H (freetype/ftsizes.h). FT_EXPORT( FT_Error ) FT_New_Size ( FT_Face face, FT_Size * size ); Create a new size object from a given face object.","title":"FT_New_Size"},{"location":"ft2-sizes_management.html#ft_done_size","text":"Defined in FT_SIZES_H (freetype/ftsizes.h). FT_EXPORT( FT_Error ) FT_Done_Size ( FT_Size size ); Discard a given size object. Note that FT_Done_Face automatically discards all size objects allocated with FT_New_Size .","title":"FT_Done_Size"},{"location":"ft2-sizes_management.html#ft_activate_size","text":"Defined in FT_SIZES_H (freetype/ftsizes.h). FT_EXPORT( FT_Error ) FT_Activate_Size ( FT_Size size ); Even though it is possible to create several size objects for a given face (see FT_New_Size for details), functions like FT_Load_Glyph or FT_Load_Char only use the one that has been activated last to determine the \u2018current character pixel size\u2019. This function can be used to \u2018activate\u2019 a previously created size object.","title":"FT_Activate_Size"},{"location":"ft2-sizing_and_scaling.html","text":"FreeType \u00bb Docs \u00bb Core API \u00bb Sizing and Scaling Sizing and Scaling \u00b6 Synopsis \u00b6 The functions and structures collected in this section are related to selecting and manipulating the size of a font globally. FT_Size \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_SizeRec_* FT_Size ; A handle to an object that models a face scaled to a given character size. note An FT_Face has one active FT_Size object that is used by functions like FT_Load_Glyph to determine the scaling transformation that in turn is used to load and hint glyphs and metrics. A newly created FT_Size object contains only meaningless zero values. You must use FT_Set_Char_Size , FT_Set_Pixel_Sizes , FT_Request_Size or even FT_Select_Size to change the content (i.e., the scaling values) of the active FT_Size . Otherwise, the scaling and hinting will not be performed. You can use FT_New_Size to create additional size objects for a given FT_Face , but they won't be used by other functions until you activate it through FT_Activate_Size . Only one size can be activated at any given time per face. also See FT_SizeRec for the publicly accessible fields of a given size object. FT_SizeRec \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_SizeRec_ { FT_Face face; /* parent face object */ FT_Generic generic; /* generic pointer for client uses */ FT_Size_Metrics metrics; /* size metrics */ FT_Size_Internal internal; } FT_SizeRec ; FreeType root size class structure. A size object models a face object at a given size. fields face Handle to the parent face object. generic A typeless pointer, unused by the FreeType library or any of its drivers. It can be used by client applications to link their own data to each size object. metrics Metrics for this size object. This field is read-only. FT_Size_Metrics \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Size_Metrics_ { FT_UShort x_ppem; /* horizontal pixels per EM */ FT_UShort y_ppem; /* vertical pixels per EM */ FT_Fixed x_scale; /* scaling values used to convert font */ FT_Fixed y_scale; /* units to 26.6 fractional pixels */ FT_Pos ascender; /* ascender in 26.6 frac. pixels */ FT_Pos descender; /* descender in 26.6 frac. pixels */ FT_Pos height; /* text height in 26.6 frac. pixels */ FT_Pos max_advance; /* max horizontal advance, in 26.6 pixels */ } FT_Size_Metrics ; The size metrics structure gives the metrics of a size object. fields x_ppem The width of the scaled EM square in pixels, hence the term \u2018ppem\u2019 (pixels per EM). It is also referred to as \u2018nominal width\u2019. y_ppem The height of the scaled EM square in pixels, hence the term \u2018ppem\u2019 (pixels per EM). It is also referred to as \u2018nominal height\u2019. x_scale A 16.16 fractional scaling value to convert horizontal metrics from font units to 26.6 fractional pixels. Only relevant for scalable font formats. y_scale A 16.16 fractional scaling value to convert vertical metrics from font units to 26.6 fractional pixels. Only relevant for scalable font formats. ascender The ascender in 26.6 fractional pixels, rounded up to an integer value. See FT_FaceRec for the details. descender The descender in 26.6 fractional pixels, rounded down to an integer value. See FT_FaceRec for the details. height The height in 26.6 fractional pixels, rounded to an integer value. See FT_FaceRec for the details. max_advance The maximum advance width in 26.6 fractional pixels, rounded to an integer value. See FT_FaceRec for the details. note The scaling values, if relevant, are determined first during a size changing operation. The remaining fields are then set by the driver. For scalable formats, they are usually set to scaled values of the corresponding fields in FT_FaceRec . Some values like ascender or descender are rounded for historical reasons; more precise values (for outline fonts) can be derived by scaling the corresponding FT_FaceRec values manually, with code similar to the following. scaled_ascender = FT_MulFix( face->ascender, size_metrics->y_scale ); Note that due to glyph hinting and the selected rendering mode these values are usually not exact; consequently, they must be treated as unreliable with an error margin of at least one pixel! Indeed, the only way to get the exact metrics is to render all glyphs. As this would be a definite performance hit, it is up to client applications to perform such computations. The FT_Size_Metrics structure is valid for bitmap fonts also. TrueType fonts with native bytecode hinting All applications that handle TrueType fonts with native hinting must be aware that TTFs expect different rounding of vertical font dimensions. The application has to cater for this, especially if it wants to rely on a TTF's vertical data (for example, to properly align box characters vertically). Only the application knows in advance that it is going to use native hinting for TTFs! FreeType, on the other hand, selects the hinting mode not at the time of creating an FT_Size object but much later, namely while calling FT_Load_Glyph . Here is some pseudo code that illustrates a possible solution. font_format = FT_Get_Font_Format( face ); if ( !strcmp( font_format, \"TrueType\" ) && do_native_bytecode_hinting ) { ascender = ROUND( FT_MulFix( face->ascender, size_metrics->y_scale ) ); descender = ROUND( FT_MulFix( face->descender, size_metrics->y_scale ) ); } else { ascender = size_metrics->ascender; descender = size_metrics->descender; } height = size_metrics->height; max_advance = size_metrics->max_advance; FT_Bitmap_Size \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Bitmap_Size_ { FT_Short height; FT_Short width; FT_Pos size; FT_Pos x_ppem; FT_Pos y_ppem; } FT_Bitmap_Size ; This structure models the metrics of a bitmap strike (i.e., a set of glyphs for a given point size and resolution) in a bitmap font. It is used for the available_sizes field of FT_Face . fields height The vertical distance, in pixels, between two consecutive baselines. It is always positive. width The average width, in pixels, of all glyphs in the strike. size The nominal size of the strike in 26.6 fractional points. This field is not very useful. x_ppem The horizontal ppem (nominal width) in 26.6 fractional pixels. y_ppem The vertical ppem (nominal height) in 26.6 fractional pixels. note Windows FNT: The nominal size given in a FNT font is not reliable. If the driver finds it incorrect, it sets size to some calculated values, and x_ppem and y_ppem to the pixel width and height given in the font, respectively. TrueType embedded bitmaps: size , width , and height values are not contained in the bitmap strike itself. They are computed from the global font parameters. FT_Set_Char_Size \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Set_Char_Size ( FT_Face face, FT_F26Dot6 char_width, FT_F26Dot6 char_height, FT_UInt horz_resolution, FT_UInt vert_resolution ); Call FT_Request_Size to request the nominal size (in points). inout face A handle to a target face object. input char_width The nominal width, in 26.6 fractional points. char_height The nominal height, in 26.6 fractional points. horz_resolution The horizontal resolution in dpi. vert_resolution The vertical resolution in dpi. return FreeType error code. 0 means success. note While this function allows fractional points as input values, the resulting ppem value for the given resolution is always rounded to the nearest integer. If either the character width or height is zero, it is set equal to the other value. If either the horizontal or vertical resolution is zero, it is set equal to the other value. A character width or height smaller than 1pt is set to 1pt; if both resolution values are zero, they are set to 72dpi. Don't use this function if you are using the FreeType cache API. FT_Set_Pixel_Sizes \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Set_Pixel_Sizes ( FT_Face face, FT_UInt pixel_width, FT_UInt pixel_height ); Call FT_Request_Size to request the nominal size (in pixels). inout face A handle to the target face object. input pixel_width The nominal width, in pixels. pixel_height The nominal height, in pixels. return FreeType error code. 0 means success. note You should not rely on the resulting glyphs matching or being constrained to this pixel size. Refer to FT_Request_Size to understand how requested sizes relate to actual sizes. Don't use this function if you are using the FreeType cache API. FT_Request_Size \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Request_Size ( FT_Face face, FT_Size_Request req ); Resize the scale of the active FT_Size object in a face. inout face A handle to a target face object. input req A pointer to a FT_Size_RequestRec . return FreeType error code. 0 means success. note Although drivers may select the bitmap strike matching the request, you should not rely on this if you intend to select a particular bitmap strike. Use FT_Select_Size instead in that case. The relation between the requested size and the resulting glyph size is dependent entirely on how the size is defined in the source face. The font designer chooses the final size of each glyph relative to this size. For more information refer to \u2018 https://www.freetype.org/freetype2/docs/glyphs/glyphs-2.html \u2019. Contrary to FT_Set_Char_Size , this function doesn't have special code to normalize zero-valued widths, heights, or resolutions, which are treated as FT_LOAD_NO_SCALE . Don't use this function if you are using the FreeType cache API. FT_Select_Size \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Select_Size ( FT_Face face, FT_Int strike_index ); Select a bitmap strike. To be more precise, this function sets the scaling factors of the active FT_Size object in a face so that bitmaps from this particular strike are taken by FT_Load_Glyph and friends. inout face A handle to a target face object. input strike_index The index of the bitmap strike in the available_sizes field of FT_FaceRec structure. return FreeType error code. 0 means success. note For bitmaps embedded in outline fonts it is common that only a subset of the available glyphs at a given ppem value is available. FreeType silently uses outlines if there is no bitmap for a given glyph index. For GX and OpenType variation fonts, a bitmap strike makes sense only if the default instance is active (that is, no glyph variation takes place); otherwise, FreeType simply ignores bitmap strikes. The same is true for all named instances that are different from the default instance. Don't use this function if you are using the FreeType cache API. FT_Size_Request_Type \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef enum FT_Size_Request_Type_ { FT_SIZE_REQUEST_TYPE_NOMINAL , FT_SIZE_REQUEST_TYPE_REAL_DIM , FT_SIZE_REQUEST_TYPE_BBOX , FT_SIZE_REQUEST_TYPE_CELL , FT_SIZE_REQUEST_TYPE_SCALES , FT_SIZE_REQUEST_TYPE_MAX } FT_Size_Request_Type ; An enumeration type that lists the supported size request types, i.e., what input size (in font units) maps to the requested output size (in pixels, as computed from the arguments of FT_Size_Request ). values FT_SIZE_REQUEST_TYPE_NOMINAL The nominal size. The units_per_EM field of FT_FaceRec is used to determine both scaling values. This is the standard scaling found in most applications. In particular, use this size request type for TrueType fonts if they provide optical scaling or something similar. Note, however, that units_per_EM is a rather abstract value which bears no relation to the actual size of the glyphs in a font. FT_SIZE_REQUEST_TYPE_REAL_DIM The real dimension. The sum of the ascender and (minus of) the descender fields of FT_FaceRec is used to determine both scaling values. FT_SIZE_REQUEST_TYPE_BBOX The font bounding box. The width and height of the bbox field of FT_FaceRec are used to determine the horizontal and vertical scaling value, respectively. FT_SIZE_REQUEST_TYPE_CELL The max_advance_width field of FT_FaceRec is used to determine the horizontal scaling value; the vertical scaling value is determined the same way as FT_SIZE_REQUEST_TYPE_REAL_DIM does. Finally, both scaling values are set to the smaller one. This type is useful if you want to specify the font size for, say, a window of a given dimension and 80x24 cells. FT_SIZE_REQUEST_TYPE_SCALES Specify the scaling values directly. note The above descriptions only apply to scalable formats. For bitmap formats, the behaviour is up to the driver. See the note section of FT_Size_Metrics if you wonder how size requesting relates to scaling values. FT_Size_RequestRec \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Size_RequestRec_ { FT_Size_Request_Type type; FT_Long width; FT_Long height; FT_UInt horiResolution; FT_UInt vertResolution; } FT_Size_RequestRec ; A structure to model a size request. fields type See FT_Size_Request_Type . width The desired width, given as a 26.6 fractional point value (with 72pt = 1in). height The desired height, given as a 26.6 fractional point value (with 72pt = 1in). horiResolution The horizontal resolution (dpi, i.e., pixels per inch). If set to zero, width is treated as a 26.6 fractional pixel value, which gets internally rounded to an integer. vertResolution The vertical resolution (dpi, i.e., pixels per inch). If set to zero, height is treated as a 26.6 fractional pixel value, which gets internally rounded to an integer. note If width is zero, the horizontal scaling value is set equal to the vertical scaling value, and vice versa. If type is FT_SIZE_REQUEST_TYPE_SCALES , width and height are interpreted directly as 16.16 fractional scaling values, without any further modification, and both horiResolution and vertResolution are ignored. FT_Size_Request \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Size_RequestRec_ * FT_Size_Request ; A handle to a size request structure. FT_Set_Transform \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( void ) FT_Set_Transform ( FT_Face face, FT_Matrix * matrix, FT_Vector * delta ); Set the transformation that is applied to glyph images when they are loaded into a glyph slot through FT_Load_Glyph . inout face A handle to the source face object. input matrix A pointer to the transformation's 2x2 matrix. Use NULL for the identity matrix. delta A pointer to the translation vector. Use NULL for the null vector. note This function is provided as a convenience, but keep in mind that FT_Matrix coefficients are only 16.16 fixed-point values, which can limit the accuracy of the results. Using floating-point computations to perform the transform directly in client code instead will always yield better numbers. The transformation is only applied to scalable image formats after the glyph has been loaded. It means that hinting is unaltered by the transformation and is performed on the character size given in the last call to FT_Set_Char_Size or FT_Set_Pixel_Sizes . Note that this also transforms the face.glyph.advance field, but not the values in face.glyph.metrics . FT_Get_Transform \u00b6 Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( void ) FT_Get_Transform ( FT_Face face, FT_Matrix * matrix, FT_Vector * delta ); Return the transformation that is applied to glyph images when they are loaded into a glyph slot through FT_Load_Glyph . See FT_Set_Transform for more details. input face A handle to the source face object. output matrix A pointer to a transformation's 2x2 matrix. Set this to NULL if you are not interested in the value. delta A pointer to a translation vector. Set this to NULL if you are not interested in the value. since 2.11","title":"Sizing and Scaling"},{"location":"ft2-sizing_and_scaling.html#sizing-and-scaling","text":"","title":"Sizing and Scaling"},{"location":"ft2-sizing_and_scaling.html#synopsis","text":"The functions and structures collected in this section are related to selecting and manipulating the size of a font globally.","title":"Synopsis"},{"location":"ft2-sizing_and_scaling.html#ft_size","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_SizeRec_* FT_Size ; A handle to an object that models a face scaled to a given character size.","title":"FT_Size"},{"location":"ft2-sizing_and_scaling.html#ft_sizerec","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_SizeRec_ { FT_Face face; /* parent face object */ FT_Generic generic; /* generic pointer for client uses */ FT_Size_Metrics metrics; /* size metrics */ FT_Size_Internal internal; } FT_SizeRec ; FreeType root size class structure. A size object models a face object at a given size.","title":"FT_SizeRec"},{"location":"ft2-sizing_and_scaling.html#ft_size_metrics","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Size_Metrics_ { FT_UShort x_ppem; /* horizontal pixels per EM */ FT_UShort y_ppem; /* vertical pixels per EM */ FT_Fixed x_scale; /* scaling values used to convert font */ FT_Fixed y_scale; /* units to 26.6 fractional pixels */ FT_Pos ascender; /* ascender in 26.6 frac. pixels */ FT_Pos descender; /* descender in 26.6 frac. pixels */ FT_Pos height; /* text height in 26.6 frac. pixels */ FT_Pos max_advance; /* max horizontal advance, in 26.6 pixels */ } FT_Size_Metrics ; The size metrics structure gives the metrics of a size object.","title":"FT_Size_Metrics"},{"location":"ft2-sizing_and_scaling.html#ft_bitmap_size","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Bitmap_Size_ { FT_Short height; FT_Short width; FT_Pos size; FT_Pos x_ppem; FT_Pos y_ppem; } FT_Bitmap_Size ; This structure models the metrics of a bitmap strike (i.e., a set of glyphs for a given point size and resolution) in a bitmap font. It is used for the available_sizes field of FT_Face .","title":"FT_Bitmap_Size"},{"location":"ft2-sizing_and_scaling.html#ft_set_char_size","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Set_Char_Size ( FT_Face face, FT_F26Dot6 char_width, FT_F26Dot6 char_height, FT_UInt horz_resolution, FT_UInt vert_resolution ); Call FT_Request_Size to request the nominal size (in points).","title":"FT_Set_Char_Size"},{"location":"ft2-sizing_and_scaling.html#ft_set_pixel_sizes","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Set_Pixel_Sizes ( FT_Face face, FT_UInt pixel_width, FT_UInt pixel_height ); Call FT_Request_Size to request the nominal size (in pixels).","title":"FT_Set_Pixel_Sizes"},{"location":"ft2-sizing_and_scaling.html#ft_request_size","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Request_Size ( FT_Face face, FT_Size_Request req ); Resize the scale of the active FT_Size object in a face.","title":"FT_Request_Size"},{"location":"ft2-sizing_and_scaling.html#ft_select_size","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( FT_Error ) FT_Select_Size ( FT_Face face, FT_Int strike_index ); Select a bitmap strike. To be more precise, this function sets the scaling factors of the active FT_Size object in a face so that bitmaps from this particular strike are taken by FT_Load_Glyph and friends.","title":"FT_Select_Size"},{"location":"ft2-sizing_and_scaling.html#ft_size_request_type","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef enum FT_Size_Request_Type_ { FT_SIZE_REQUEST_TYPE_NOMINAL , FT_SIZE_REQUEST_TYPE_REAL_DIM , FT_SIZE_REQUEST_TYPE_BBOX , FT_SIZE_REQUEST_TYPE_CELL , FT_SIZE_REQUEST_TYPE_SCALES , FT_SIZE_REQUEST_TYPE_MAX } FT_Size_Request_Type ; An enumeration type that lists the supported size request types, i.e., what input size (in font units) maps to the requested output size (in pixels, as computed from the arguments of FT_Size_Request ).","title":"FT_Size_Request_Type"},{"location":"ft2-sizing_and_scaling.html#ft_size_requestrec","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Size_RequestRec_ { FT_Size_Request_Type type; FT_Long width; FT_Long height; FT_UInt horiResolution; FT_UInt vertResolution; } FT_Size_RequestRec ; A structure to model a size request.","title":"FT_Size_RequestRec"},{"location":"ft2-sizing_and_scaling.html#ft_size_request","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). typedef struct FT_Size_RequestRec_ * FT_Size_Request ; A handle to a size request structure.","title":"FT_Size_Request"},{"location":"ft2-sizing_and_scaling.html#ft_set_transform","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( void ) FT_Set_Transform ( FT_Face face, FT_Matrix * matrix, FT_Vector * delta ); Set the transformation that is applied to glyph images when they are loaded into a glyph slot through FT_Load_Glyph .","title":"FT_Set_Transform"},{"location":"ft2-sizing_and_scaling.html#ft_get_transform","text":"Defined in FT_FREETYPE_H (freetype/freetype.h). FT_EXPORT( void ) FT_Get_Transform ( FT_Face face, FT_Matrix * matrix, FT_Vector * delta ); Return the transformation that is applied to glyph images when they are loaded into a glyph slot through FT_Load_Glyph . See FT_Set_Transform for more details.","title":"FT_Get_Transform"},{"location":"ft2-svg_fonts.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb OpenType SVG Fonts OpenType SVG Fonts \u00b6 Synopsis \u00b6 This section describes the four hooks necessary to render SVG \u2018documents\u2019 that are contained in an OpenType font's \u2018SVG \u2019 table. For more information on the implementation, see our standard hooks based on \u2018librsvg\u2019 in the FreeType Demo Programs repository. SVG_Lib_Init_Func \u00b6 Defined in FT_OTSVG_H (freetype/otsvg.h). typedef FT_Error (* SVG_Lib_Init_Func )( FT_Pointer *data_pointer ); A callback that is called when the first OT-SVG glyph is rendered in the lifetime of an FT_Library object. In a typical implementation, one would want to allocate a structure and point the data_pointer to it and perform any library initializations that might be needed. inout data_pointer The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. data_pointer is essentially a pointer to that pointer such that it can be written to as well as read from. return FreeType error code. 0 means success. since 2.12 SVG_Lib_Free_Func \u00b6 Defined in FT_OTSVG_H (freetype/otsvg.h). typedef void (* SVG_Lib_Free_Func )( FT_Pointer *data_pointer ); A callback that is called when the ot-svg module is being freed. It is only called if the init hook was called earlier. This means that neither the init nor the free hook is called if no OT-SVG glyph is rendered. In a typical implementation, one would want to free any state structure that was allocated in the init hook and perform any library-related closure that might be needed. inout data_pointer The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. data_pointer is essentially a pointer to that pointer such that it can be written to as well as read from. since 2.12 SVG_Lib_Render_Func \u00b6 Defined in FT_OTSVG_H (freetype/otsvg.h). typedef FT_Error (* SVG_Lib_Render_Func )( FT_GlyphSlot slot, FT_Pointer *data_pointer ); A callback that is called to render an OT-SVG glyph. This callback hook is called right after the preset hook SVG_Lib_Preset_Slot_Func has been called with cache set to TRUE . The data necessary to render is available through the handle FT_SVG_Document , which is set in the other field of FT_GlyphSlotRec . The render hook is expected to render the SVG glyph to the bitmap buffer that is allocated already at slot->bitmap.buffer . It also sets the num_grays value as well as slot->format . input slot The slot to render. inout data_pointer The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. data_pointer is essentially a pointer to that pointer such that it can be written to as well as read from. return FreeType error code. 0 means success. since 2.12 SVG_Lib_Preset_Slot_Func \u00b6 Defined in FT_OTSVG_H (freetype/otsvg.h). typedef FT_Error (* SVG_Lib_Preset_Slot_Func )( FT_GlyphSlot slot, FT_Bool cache, FT_Pointer *state ); A callback that is called to preset the glyph slot. It is called from two places. When FT_Load_Glyph needs to preset the glyph slot. Right before the svg module calls the render callback hook. When it is the former, the argument cache is set to FALSE . When it is the latter, the argument cache is set to TRUE . This distinction has been made because many calculations that are necessary for presetting a glyph slot are the same needed later for the render callback hook. Thus, if cache is TRUE , the hook can cache those calculations in a memory block referenced by the state pointer. This hook is expected to preset the slot by setting parameters such as bitmap_left , bitmap_top , width , rows , pitch , and pixel_mode . It is also expected to set all the metrics for the slot including the vertical advance if it is not already set. Typically, fonts have horizontal advances but not vertical ones. If those are available, they had already been set, otherwise they have to be estimated and set manually. The hook must take into account the transformations that have been set, and translate the transformation matrices into the SVG coordinate system, as the original matrix is intended for the TTF/CFF coordinate system. input slot The glyph slot that has the SVG document loaded. cache See description. inout data_pointer The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. data_pointer is essentially a pointer to that pointer such that it can be written to as well as read from. return FreeType error code. 0 means success. since 2.12 SVG_RendererHooks \u00b6 Defined in FT_OTSVG_H (freetype/otsvg.h). typedef struct SVG_RendererHooks_ { SVG_Lib_Init_Func init_svg; SVG_Lib_Free_Func free_svg; SVG_Lib_Render_Func render_svg; SVG_Lib_Preset_Slot_Func preset_slot; } SVG_RendererHooks ; A structure that stores the four hooks needed to render OT-SVG glyphs properly. The structure is publicly used to set the hooks via the svg-hooks driver property. The behavior of each hook is described in its documentation. One thing to note is that the preset hook and the render hook often need to do the same operations; therefore, it's better to cache the intermediate data in a state structure to avoid calculating it twice. For example, in the preset hook one can draw the glyph on a recorder surface and later create a bitmap surface from it in the render hook. All four hooks must be non-NULL. fields init_svg The initialization hook. free_svg The cleanup hook. render_hook The render hook. preset_slot The preset hook. since 2.12 FT_SVG_DocumentRec \u00b6 Defined in FT_OTSVG_H (freetype/otsvg.h). typedef struct FT_SVG_DocumentRec_ { FT_Byte * svg_document; FT_ULong svg_document_length; FT_Size_Metrics metrics; FT_UShort units_per_EM; FT_UShort start_glyph_id; FT_UShort end_glyph_id; FT_Matrix transform; FT_Vector delta; } FT_SVG_DocumentRec ; A structure that models one SVG document. fields svg_document A pointer to the SVG document. svg_document_length The length of svg_document . metrics A metrics object storing the size information. units_per_EM The size of the EM square. start_glyph_id The first glyph ID in the glyph range covered by this document. end_glyph_id The last glyph ID in the glyph range covered by this document. transform A 2x2 transformation matrix to apply to the glyph while rendering it. delta The translation to apply to the glyph while rendering. note When an FT_GlyphSlot object slot is passed down to a renderer, the renderer can only access the metrics and units_per_EM fields via slot->face . However, when FT_Glyph_To_Bitmap sets up a dummy object, it has no way to set a face object. Thus, metrics information and units_per_EM (which is necessary for OT-SVG) has to be stored separately. since 2.12 FT_SVG_Document \u00b6 Defined in FT_OTSVG_H (freetype/otsvg.h). typedef struct FT_SVG_DocumentRec_* FT_SVG_Document ; FT_END_HEADER # endif /* OTSVG_H_ */ /* END */ A handle to an FT_SVG_DocumentRec object. since 2.12","title":"OpenType SVG Fonts"},{"location":"ft2-svg_fonts.html#opentype-svg-fonts","text":"","title":"OpenType SVG Fonts"},{"location":"ft2-svg_fonts.html#synopsis","text":"This section describes the four hooks necessary to render SVG \u2018documents\u2019 that are contained in an OpenType font's \u2018SVG \u2019 table. For more information on the implementation, see our standard hooks based on \u2018librsvg\u2019 in the FreeType Demo Programs repository.","title":"Synopsis"},{"location":"ft2-svg_fonts.html#svg_lib_init_func","text":"Defined in FT_OTSVG_H (freetype/otsvg.h). typedef FT_Error (* SVG_Lib_Init_Func )( FT_Pointer *data_pointer ); A callback that is called when the first OT-SVG glyph is rendered in the lifetime of an FT_Library object. In a typical implementation, one would want to allocate a structure and point the data_pointer to it and perform any library initializations that might be needed.","title":"SVG_Lib_Init_Func"},{"location":"ft2-svg_fonts.html#svg_lib_free_func","text":"Defined in FT_OTSVG_H (freetype/otsvg.h). typedef void (* SVG_Lib_Free_Func )( FT_Pointer *data_pointer ); A callback that is called when the ot-svg module is being freed. It is only called if the init hook was called earlier. This means that neither the init nor the free hook is called if no OT-SVG glyph is rendered. In a typical implementation, one would want to free any state structure that was allocated in the init hook and perform any library-related closure that might be needed.","title":"SVG_Lib_Free_Func"},{"location":"ft2-svg_fonts.html#svg_lib_render_func","text":"Defined in FT_OTSVG_H (freetype/otsvg.h). typedef FT_Error (* SVG_Lib_Render_Func )( FT_GlyphSlot slot, FT_Pointer *data_pointer ); A callback that is called to render an OT-SVG glyph. This callback hook is called right after the preset hook SVG_Lib_Preset_Slot_Func has been called with cache set to TRUE . The data necessary to render is available through the handle FT_SVG_Document , which is set in the other field of FT_GlyphSlotRec . The render hook is expected to render the SVG glyph to the bitmap buffer that is allocated already at slot->bitmap.buffer . It also sets the num_grays value as well as slot->format .","title":"SVG_Lib_Render_Func"},{"location":"ft2-svg_fonts.html#svg_lib_preset_slot_func","text":"Defined in FT_OTSVG_H (freetype/otsvg.h). typedef FT_Error (* SVG_Lib_Preset_Slot_Func )( FT_GlyphSlot slot, FT_Bool cache, FT_Pointer *state ); A callback that is called to preset the glyph slot. It is called from two places. When FT_Load_Glyph needs to preset the glyph slot. Right before the svg module calls the render callback hook. When it is the former, the argument cache is set to FALSE . When it is the latter, the argument cache is set to TRUE . This distinction has been made because many calculations that are necessary for presetting a glyph slot are the same needed later for the render callback hook. Thus, if cache is TRUE , the hook can cache those calculations in a memory block referenced by the state pointer. This hook is expected to preset the slot by setting parameters such as bitmap_left , bitmap_top , width , rows , pitch , and pixel_mode . It is also expected to set all the metrics for the slot including the vertical advance if it is not already set. Typically, fonts have horizontal advances but not vertical ones. If those are available, they had already been set, otherwise they have to be estimated and set manually. The hook must take into account the transformations that have been set, and translate the transformation matrices into the SVG coordinate system, as the original matrix is intended for the TTF/CFF coordinate system.","title":"SVG_Lib_Preset_Slot_Func"},{"location":"ft2-svg_fonts.html#svg_rendererhooks","text":"Defined in FT_OTSVG_H (freetype/otsvg.h). typedef struct SVG_RendererHooks_ { SVG_Lib_Init_Func init_svg; SVG_Lib_Free_Func free_svg; SVG_Lib_Render_Func render_svg; SVG_Lib_Preset_Slot_Func preset_slot; } SVG_RendererHooks ; A structure that stores the four hooks needed to render OT-SVG glyphs properly. The structure is publicly used to set the hooks via the svg-hooks driver property. The behavior of each hook is described in its documentation. One thing to note is that the preset hook and the render hook often need to do the same operations; therefore, it's better to cache the intermediate data in a state structure to avoid calculating it twice. For example, in the preset hook one can draw the glyph on a recorder surface and later create a bitmap surface from it in the render hook. All four hooks must be non-NULL.","title":"SVG_RendererHooks"},{"location":"ft2-svg_fonts.html#ft_svg_documentrec","text":"Defined in FT_OTSVG_H (freetype/otsvg.h). typedef struct FT_SVG_DocumentRec_ { FT_Byte * svg_document; FT_ULong svg_document_length; FT_Size_Metrics metrics; FT_UShort units_per_EM; FT_UShort start_glyph_id; FT_UShort end_glyph_id; FT_Matrix transform; FT_Vector delta; } FT_SVG_DocumentRec ; A structure that models one SVG document.","title":"FT_SVG_DocumentRec"},{"location":"ft2-svg_fonts.html#ft_svg_document","text":"Defined in FT_OTSVG_H (freetype/otsvg.h). typedef struct FT_SVG_DocumentRec_* FT_SVG_Document ; FT_END_HEADER # endif /* OTSVG_H_ */ /* END */ A handle to an FT_SVG_DocumentRec object.","title":"FT_SVG_Document"},{"location":"ft2-system_interface.html","text":"FreeType \u00bb Docs \u00bb Support API \u00bb System Interface System Interface \u00b6 Synopsis \u00b6 This section contains various definitions related to memory management and i/o access. You need to understand this information if you want to use a custom memory manager or you own i/o streams. FT_Memory \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef struct FT_MemoryRec_* FT_Memory ; A handle to a given memory manager object, defined with an FT_MemoryRec structure. FT_Alloc_Func \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef void * (* FT_Alloc_Func )( FT_Memory memory, long size ); A function used to allocate size bytes from memory . input memory A handle to the source memory manager. size The size in bytes to allocate. return Address of new memory block. 0 in case of failure. FT_Free_Func \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef void (* FT_Free_Func )( FT_Memory memory, void * block ); A function used to release a given block of memory. input memory A handle to the source memory manager. block The address of the target memory block. FT_Realloc_Func \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef void * (* FT_Realloc_Func )( FT_Memory memory, long cur_size, long new_size, void * block ); A function used to re-allocate a given block of memory. input memory A handle to the source memory manager. cur_size The block's current size in bytes. new_size The block's requested new size. block The block's current address. return New block address. 0 in case of memory shortage. note In case of error, the old block must still be available. FT_MemoryRec \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). struct FT_MemoryRec_ { void * user; FT_Alloc_Func alloc; FT_Free_Func free; FT_Realloc_Func realloc; }; A structure used to describe a given memory manager to FreeType 2. fields user A generic typeless pointer for user data. alloc A pointer type to an allocation function. free A pointer type to an memory freeing function. realloc A pointer type to a reallocation function. FT_Stream \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef struct FT_StreamRec_* FT_Stream ; A handle to an input stream. also See FT_StreamRec for the publicly accessible fields of a given stream object. FT_StreamDesc \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef union FT_StreamDesc_ { long value; void * pointer; } FT_StreamDesc ; A union type used to store either a long or a pointer. This is used to store a file descriptor or a FILE* in an input stream. FT_Stream_IoFunc \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef unsigned long (* FT_Stream_IoFunc )( FT_Stream stream, unsigned long offset, unsigned char * buffer, unsigned long count ); A function used to seek and read data from a given input stream. input stream A handle to the source stream. offset The offset from the start of the stream to seek to. buffer The address of the read buffer. count The number of bytes to read from the stream. return If count > 0, return the number of bytes effectively read by the stream (after seeking to offset ). If count == 0, return the status of the seek operation (non-zero indicates an error). FT_Stream_CloseFunc \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef void (* FT_Stream_CloseFunc )( FT_Stream stream ); A function used to close a given input stream. input stream A handle to the target stream. FT_StreamRec \u00b6 Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef struct FT_StreamRec_ { unsigned char * base; unsigned long size; unsigned long pos; FT_StreamDesc descriptor; FT_StreamDesc pathname; FT_Stream_IoFunc read; FT_Stream_CloseFunc close; FT_Memory memory; unsigned char * cursor; unsigned char * limit; } FT_StreamRec ; A structure used to describe an input stream. input base For memory-based streams, this is the address of the first stream byte in memory. This field should always be set to NULL for disk-based streams. size The stream size in bytes. In case of compressed streams where the size is unknown before actually doing the decompression, the value is set to 0x7FFFFFFF. (Note that this size value can occur for normal streams also; it is thus just a hint.) pos The current position within the stream. descriptor This field is a union that can hold an integer or a pointer. It is used by stream implementations to store file descriptors or FILE* pointers. pathname This field is completely ignored by FreeType. However, it is often useful during debugging to use it to store the stream's filename (where available). read The stream's input function. close The stream's close function. memory The memory manager to use to preload frames. This is set internally by FreeType and shouldn't be touched by stream implementations. cursor This field is set and used internally by FreeType when parsing frames. In particular, the FT_GET_XXX macros use this instead of the pos field. limit This field is set and used internally by FreeType when parsing frames.","title":"System Interface"},{"location":"ft2-system_interface.html#system-interface","text":"","title":"System Interface"},{"location":"ft2-system_interface.html#synopsis","text":"This section contains various definitions related to memory management and i/o access. You need to understand this information if you want to use a custom memory manager or you own i/o streams.","title":"Synopsis"},{"location":"ft2-system_interface.html#ft_memory","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef struct FT_MemoryRec_* FT_Memory ; A handle to a given memory manager object, defined with an FT_MemoryRec structure.","title":"FT_Memory"},{"location":"ft2-system_interface.html#ft_alloc_func","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef void * (* FT_Alloc_Func )( FT_Memory memory, long size ); A function used to allocate size bytes from memory .","title":"FT_Alloc_Func"},{"location":"ft2-system_interface.html#ft_free_func","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef void (* FT_Free_Func )( FT_Memory memory, void * block ); A function used to release a given block of memory.","title":"FT_Free_Func"},{"location":"ft2-system_interface.html#ft_realloc_func","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef void * (* FT_Realloc_Func )( FT_Memory memory, long cur_size, long new_size, void * block ); A function used to re-allocate a given block of memory.","title":"FT_Realloc_Func"},{"location":"ft2-system_interface.html#ft_memoryrec","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). struct FT_MemoryRec_ { void * user; FT_Alloc_Func alloc; FT_Free_Func free; FT_Realloc_Func realloc; }; A structure used to describe a given memory manager to FreeType 2.","title":"FT_MemoryRec"},{"location":"ft2-system_interface.html#ft_stream","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef struct FT_StreamRec_* FT_Stream ; A handle to an input stream.","title":"FT_Stream"},{"location":"ft2-system_interface.html#ft_streamdesc","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef union FT_StreamDesc_ { long value; void * pointer; } FT_StreamDesc ; A union type used to store either a long or a pointer. This is used to store a file descriptor or a FILE* in an input stream.","title":"FT_StreamDesc"},{"location":"ft2-system_interface.html#ft_stream_iofunc","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef unsigned long (* FT_Stream_IoFunc )( FT_Stream stream, unsigned long offset, unsigned char * buffer, unsigned long count ); A function used to seek and read data from a given input stream.","title":"FT_Stream_IoFunc"},{"location":"ft2-system_interface.html#ft_stream_closefunc","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef void (* FT_Stream_CloseFunc )( FT_Stream stream ); A function used to close a given input stream.","title":"FT_Stream_CloseFunc"},{"location":"ft2-system_interface.html#ft_streamrec","text":"Defined in FT_SYSTEM_H (freetype/ftsystem.h). typedef struct FT_StreamRec_ { unsigned char * base; unsigned long size; unsigned long pos; FT_StreamDesc descriptor; FT_StreamDesc pathname; FT_Stream_IoFunc read; FT_Stream_CloseFunc close; FT_Memory memory; unsigned char * cursor; unsigned char * limit; } FT_StreamRec ; A structure used to describe an input stream.","title":"FT_StreamRec"},{"location":"ft2-t1_cid_driver.html","text":"FreeType \u00bb Docs \u00bb Controlling FreeType Modules \u00bb The Type 1 and CID drivers The Type 1 and CID drivers \u00b6 Synopsis \u00b6 It is possible to control the behaviour of FreeType's Type 1 and Type 1 CID drivers with FT_Property_Set and FT_Property_Get . Behind the scenes, both drivers use the Adobe CFF engine for hinting; however, the used properties must be specified separately. The Type 1 driver's module name is \u2018type1\u2019; the CID driver's module name is \u2018t1cid\u2019. Available properties are hinting-engine , no-stem-darkening , darkening-parameters , and random-seed , as documented in the \u2018 Driver properties \u2019 section. Please see the \u2018 The CFF driver \u2019 section for more details on the new hinting engine.","title":"The Type 1 and CID drivers"},{"location":"ft2-t1_cid_driver.html#the-type-1-and-cid-drivers","text":"","title":"The Type 1 and CID drivers"},{"location":"ft2-t1_cid_driver.html#synopsis","text":"It is possible to control the behaviour of FreeType's Type 1 and Type 1 CID drivers with FT_Property_Set and FT_Property_Get . Behind the scenes, both drivers use the Adobe CFF engine for hinting; however, the used properties must be specified separately. The Type 1 driver's module name is \u2018type1\u2019; the CID driver's module name is \u2018t1cid\u2019. Available properties are hinting-engine , no-stem-darkening , darkening-parameters , and random-seed , as documented in the \u2018 Driver properties \u2019 section. Please see the \u2018 The CFF driver \u2019 section for more details on the new hinting engine.","title":"Synopsis"},{"location":"ft2-truetype_engine.html","text":"FreeType \u00bb Docs \u00bb Miscellaneous \u00bb The TrueType Engine The TrueType Engine \u00b6 Synopsis \u00b6 This section contains a function used to query the level of TrueType bytecode support compiled in this version of the library. FT_TrueTypeEngineType \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). typedef enum FT_TrueTypeEngineType_ { FT_TRUETYPE_ENGINE_TYPE_NONE = 0, FT_TRUETYPE_ENGINE_TYPE_UNPATENTED , FT_TRUETYPE_ENGINE_TYPE_PATENTED } FT_TrueTypeEngineType ; A list of values describing which kind of TrueType bytecode engine is implemented in a given FT_Library instance. It is used by the FT_Get_TrueType_Engine_Type function. values FT_TRUETYPE_ENGINE_TYPE_NONE The library doesn't implement any kind of bytecode interpreter. FT_TRUETYPE_ENGINE_TYPE_UNPATENTED Deprecated and removed. FT_TRUETYPE_ENGINE_TYPE_PATENTED The library implements a bytecode interpreter that covers the full instruction set of the TrueType virtual machine (this was governed by patents until May 2010, hence the name). since 2.2 FT_Get_TrueType_Engine_Type \u00b6 Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_TrueTypeEngineType ) FT_Get_TrueType_Engine_Type ( FT_Library library ); Return an FT_TrueTypeEngineType value to indicate which level of the TrueType virtual machine a given library instance supports. input library A library instance. return A value indicating which level is supported. since 2.2","title":"The TrueType Engine"},{"location":"ft2-truetype_engine.html#the-truetype-engine","text":"","title":"The TrueType Engine"},{"location":"ft2-truetype_engine.html#synopsis","text":"This section contains a function used to query the level of TrueType bytecode support compiled in this version of the library.","title":"Synopsis"},{"location":"ft2-truetype_engine.html#ft_truetypeenginetype","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). typedef enum FT_TrueTypeEngineType_ { FT_TRUETYPE_ENGINE_TYPE_NONE = 0, FT_TRUETYPE_ENGINE_TYPE_UNPATENTED , FT_TRUETYPE_ENGINE_TYPE_PATENTED } FT_TrueTypeEngineType ; A list of values describing which kind of TrueType bytecode engine is implemented in a given FT_Library instance. It is used by the FT_Get_TrueType_Engine_Type function.","title":"FT_TrueTypeEngineType"},{"location":"ft2-truetype_engine.html#ft_get_truetype_engine_type","text":"Defined in FT_MODULE_H (freetype/ftmodapi.h). FT_EXPORT( FT_TrueTypeEngineType ) FT_Get_TrueType_Engine_Type ( FT_Library library ); Return an FT_TrueTypeEngineType value to indicate which level of the TrueType virtual machine a given library instance supports.","title":"FT_Get_TrueType_Engine_Type"},{"location":"ft2-truetype_tables.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb TrueType Tables TrueType Tables \u00b6 Synopsis \u00b6 This section contains definitions of some basic tables specific to TrueType and OpenType as well as some routines used to access and process them. TT_Header \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_Header_ { FT_Fixed Table_Version; FT_Fixed Font_Revision; FT_Long CheckSum_Adjust; FT_Long Magic_Number; FT_UShort Flags; FT_UShort Units_Per_EM; FT_ULong Created [2]; FT_ULong Modified[2]; FT_Short xMin; FT_Short yMin; FT_Short xMax; FT_Short yMax; FT_UShort Mac_Style; FT_UShort Lowest_Rec_PPEM; FT_Short Font_Direction; FT_Short Index_To_Loc_Format; FT_Short Glyph_Data_Format; } TT_Header ; A structure to model a TrueType font header table. All fields follow the OpenType specification. The 64-bit timestamps are stored in two-element arrays Created and Modified , first the upper then the lower 32 bits. TT_HoriHeader \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_HoriHeader_ { FT_Fixed Version; FT_Short Ascender; FT_Short Descender; FT_Short Line_Gap; FT_UShort advance_Width_Max; /* advance width maximum */ FT_Short min_Left_Side_Bearing; /* minimum left-sb */ FT_Short min_Right_Side_Bearing; /* minimum right-sb */ FT_Short xMax_Extent; /* xmax extents */ FT_Short caret_Slope_Rise; FT_Short caret_Slope_Run; FT_Short caret_Offset; FT_Short Reserved[4]; FT_Short metric_Data_Format; FT_UShort number_Of_HMetrics; /* The following fields are not defined by the OpenType specification */ /* but they are used to connect the metrics header to the relevant */ /* 'hmtx' table. */ void * long_metrics; void * short_metrics; } TT_HoriHeader ; A structure to model a TrueType horizontal header, the \u2018hhea\u2019 table, as well as the corresponding horizontal metrics table, \u2018hmtx\u2019. fields Version The table version. Ascender The font's ascender, i.e., the distance from the baseline to the top-most of all glyph points found in the font. This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII). You should use the sTypoAscender field of the \u2018OS/2\u2019 table instead if you want the correct one. Descender The font's descender, i.e., the distance from the baseline to the bottom-most of all glyph points found in the font. It is negative. This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII). You should use the sTypoDescender field of the \u2018OS/2\u2019 table instead if you want the correct one. Line_Gap The font's line gap, i.e., the distance to add to the ascender and descender to get the BTB, i.e., the baseline-to-baseline distance for the font. advance_Width_Max This field is the maximum of all advance widths found in the font. It can be used to compute the maximum width of an arbitrary string of text. min_Left_Side_Bearing The minimum left side bearing of all glyphs within the font. min_Right_Side_Bearing The minimum right side bearing of all glyphs within the font. xMax_Extent The maximum horizontal extent (i.e., the \u2018width\u2019 of a glyph's bounding box) for all glyphs in the font. caret_Slope_Rise The rise coefficient of the cursor's slope of the cursor (slope=rise/run). caret_Slope_Run The run coefficient of the cursor's slope. caret_Offset The cursor's offset for slanted fonts. Reserved 8 reserved bytes. metric_Data_Format Always 0. number_Of_HMetrics Number of HMetrics entries in the \u2018hmtx\u2019 table \u2013 this value can be smaller than the total number of glyphs in the font. long_metrics A pointer into the \u2018hmtx\u2019 table. short_metrics A pointer into the \u2018hmtx\u2019 table. note For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an \u2018MVAR\u2019 table: caret_Slope_Rise , caret_Slope_Run , and caret_Offset . TT_VertHeader \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_VertHeader_ { FT_Fixed Version; FT_Short Ascender; FT_Short Descender; FT_Short Line_Gap; FT_UShort advance_Height_Max; /* advance height maximum */ FT_Short min_Top_Side_Bearing; /* minimum top-sb */ FT_Short min_Bottom_Side_Bearing; /* minimum bottom-sb */ FT_Short yMax_Extent; /* ymax extents */ FT_Short caret_Slope_Rise; FT_Short caret_Slope_Run; FT_Short caret_Offset; FT_Short Reserved[4]; FT_Short metric_Data_Format; FT_UShort number_Of_VMetrics; /* The following fields are not defined by the OpenType specification */ /* but they are used to connect the metrics header to the relevant */ /* 'vmtx' table. */ void * long_metrics; void * short_metrics; } TT_VertHeader ; A structure used to model a TrueType vertical header, the \u2018vhea\u2019 table, as well as the corresponding vertical metrics table, \u2018vmtx\u2019. fields Version The table version. Ascender The font's ascender, i.e., the distance from the baseline to the top-most of all glyph points found in the font. This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII). You should use the sTypoAscender field of the \u2018OS/2\u2019 table instead if you want the correct one. Descender The font's descender, i.e., the distance from the baseline to the bottom-most of all glyph points found in the font. It is negative. This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII). You should use the sTypoDescender field of the \u2018OS/2\u2019 table instead if you want the correct one. Line_Gap The font's line gap, i.e., the distance to add to the ascender and descender to get the BTB, i.e., the baseline-to-baseline distance for the font. advance_Height_Max This field is the maximum of all advance heights found in the font. It can be used to compute the maximum height of an arbitrary string of text. min_Top_Side_Bearing The minimum top side bearing of all glyphs within the font. min_Bottom_Side_Bearing The minimum bottom side bearing of all glyphs within the font. yMax_Extent The maximum vertical extent (i.e., the \u2018height\u2019 of a glyph's bounding box) for all glyphs in the font. caret_Slope_Rise The rise coefficient of the cursor's slope of the cursor (slope=rise/run). caret_Slope_Run The run coefficient of the cursor's slope. caret_Offset The cursor's offset for slanted fonts. Reserved 8 reserved bytes. metric_Data_Format Always 0. number_Of_VMetrics Number of VMetrics entries in the \u2018vmtx\u2019 table \u2013 this value can be smaller than the total number of glyphs in the font. long_metrics A pointer into the \u2018vmtx\u2019 table. short_metrics A pointer into the \u2018vmtx\u2019 table. note For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an \u2018MVAR\u2019 table: Ascender , Descender , Line_Gap , caret_Slope_Rise , caret_Slope_Run , and caret_Offset . TT_OS2 \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_OS2_ { FT_UShort version; /* 0x0001 - more or 0xFFFF */ FT_Short xAvgCharWidth; FT_UShort usWeightClass; FT_UShort usWidthClass; FT_UShort fsType; FT_Short ySubscriptXSize; FT_Short ySubscriptYSize; FT_Short ySubscriptXOffset; FT_Short ySubscriptYOffset; FT_Short ySuperscriptXSize; FT_Short ySuperscriptYSize; FT_Short ySuperscriptXOffset; FT_Short ySuperscriptYOffset; FT_Short yStrikeoutSize; FT_Short yStrikeoutPosition; FT_Short sFamilyClass; FT_Byte panose[10]; FT_ULong ulUnicodeRange1; /* Bits 0-31 */ FT_ULong ulUnicodeRange2; /* Bits 32-63 */ FT_ULong ulUnicodeRange3; /* Bits 64-95 */ FT_ULong ulUnicodeRange4; /* Bits 96-127 */ FT_Char achVendID[4]; FT_UShort fsSelection; FT_UShort usFirstCharIndex; FT_UShort usLastCharIndex; FT_Short sTypoAscender; FT_Short sTypoDescender; FT_Short sTypoLineGap; FT_UShort usWinAscent; FT_UShort usWinDescent; /* only version 1 and higher: */ FT_ULong ulCodePageRange1; /* Bits 0-31 */ FT_ULong ulCodePageRange2; /* Bits 32-63 */ /* only version 2 and higher: */ FT_Short sxHeight; FT_Short sCapHeight; FT_UShort usDefaultChar; FT_UShort usBreakChar; FT_UShort usMaxContext; /* only version 5 and higher: */ FT_UShort usLowerOpticalPointSize; /* in twips (1/20 points) */ FT_UShort usUpperOpticalPointSize; /* in twips (1/20 points) */ } TT_OS2 ; A structure to model a TrueType \u2018OS/2\u2019 table. All fields comply to the OpenType specification. Note that we now support old Mac fonts that do not include an \u2018OS/2\u2019 table. In this case, the version field is always set to 0xFFFF. note For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an \u2018MVAR\u2019 table: sCapHeight , sTypoAscender , sTypoDescender , sTypoLineGap , sxHeight , usWinAscent , usWinDescent , yStrikeoutPosition , yStrikeoutSize , ySubscriptXOffset , ySubScriptXSize , ySubscriptYOffset , ySubscriptYSize , ySuperscriptXOffset , ySuperscriptXSize , ySuperscriptYOffset , and ySuperscriptYSize . Possible values for bits in the ulUnicodeRangeX fields are given by the TT_UCR_XXX macros. TT_Postscript \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_Postscript_ { FT_Fixed FormatType; FT_Fixed italicAngle; FT_Short underlinePosition; FT_Short underlineThickness; FT_ULong isFixedPitch; FT_ULong minMemType42; FT_ULong maxMemType42; FT_ULong minMemType1; FT_ULong maxMemType1; /* Glyph names follow in the 'post' table, but we don't */ /* load them by default. */ } TT_Postscript ; A structure to model a TrueType \u2018post\u2019 table. All fields comply to the OpenType specification. This structure does not reference a font's PostScript glyph names; use FT_Get_Glyph_Name to retrieve them. note For an OpenType variation font, the values of the following fields can change after a call to FT_Set_Var_Design_Coordinates (and friends) if the font contains an \u2018MVAR\u2019 table: underlinePosition and underlineThickness . TT_PCLT \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_PCLT_ { FT_Fixed Version; FT_ULong FontNumber; FT_UShort Pitch; FT_UShort xHeight; FT_UShort Style; FT_UShort TypeFamily; FT_UShort CapHeight; FT_UShort SymbolSet; FT_Char TypeFace[16]; FT_Char CharacterComplement[8]; FT_Char FileName[6]; FT_Char StrokeWeight; FT_Char WidthType; FT_Byte SerifStyle; FT_Byte Reserved; } TT_PCLT ; A structure to model a TrueType \u2018PCLT\u2019 table. All fields comply to the OpenType specification. TT_MaxProfile \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_MaxProfile_ { FT_Fixed version; FT_UShort numGlyphs; FT_UShort maxPoints; FT_UShort maxContours; FT_UShort maxCompositePoints; FT_UShort maxCompositeContours; FT_UShort maxZones; FT_UShort maxTwilightPoints; FT_UShort maxStorage; FT_UShort maxFunctionDefs; FT_UShort maxInstructionDefs; FT_UShort maxStackElements; FT_UShort maxSizeOfInstructions; FT_UShort maxComponentElements; FT_UShort maxComponentDepth; } TT_MaxProfile ; The maximum profile (\u2018maxp\u2019) table contains many max values, which can be used to pre-allocate arrays for speeding up glyph loading and hinting. fields version The version number. numGlyphs The number of glyphs in this TrueType font. maxPoints The maximum number of points in a non-composite TrueType glyph. See also maxCompositePoints . maxContours The maximum number of contours in a non-composite TrueType glyph. See also maxCompositeContours . maxCompositePoints The maximum number of points in a composite TrueType glyph. See also maxPoints . maxCompositeContours The maximum number of contours in a composite TrueType glyph. See also maxContours . maxZones The maximum number of zones used for glyph hinting. maxTwilightPoints The maximum number of points in the twilight zone used for glyph hinting. maxStorage The maximum number of elements in the storage area used for glyph hinting. maxFunctionDefs The maximum number of function definitions in the TrueType bytecode for this font. maxInstructionDefs The maximum number of instruction definitions in the TrueType bytecode for this font. maxStackElements The maximum number of stack elements used during bytecode interpretation. maxSizeOfInstructions The maximum number of TrueType opcodes used for glyph hinting. maxComponentElements The maximum number of simple (i.e., non-composite) glyphs in a composite glyph. maxComponentDepth The maximum nesting depth of composite glyphs. note This structure is only used during font loading. FT_Sfnt_Tag \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef enum FT_Sfnt_Tag_ { FT_SFNT_HEAD , FT_SFNT_MAXP , FT_SFNT_OS2 , FT_SFNT_HHEA , FT_SFNT_VHEA , FT_SFNT_POST , FT_SFNT_PCLT , FT_SFNT_MAX } FT_Sfnt_Tag ; /* these constants are deprecated; use the corresponding ` FT_Sfnt_Tag ` */ /* values instead */ # define ft_sfnt_head FT_SFNT_HEAD # define ft_sfnt_maxp FT_SFNT_MAXP # define ft_sfnt_os2 FT_SFNT_OS2 # define ft_sfnt_hhea FT_SFNT_HHEA # define ft_sfnt_vhea FT_SFNT_VHEA # define ft_sfnt_post FT_SFNT_POST # define ft_sfnt_pclt FT_SFNT_PCLT An enumeration to specify indices of SFNT tables loaded and parsed by FreeType during initialization of an SFNT font. Used in the FT_Get_Sfnt_Table API function. values FT_SFNT_HEAD To access the font's TT_Header structure. FT_SFNT_MAXP To access the font's TT_MaxProfile structure. FT_SFNT_OS2 To access the font's TT_OS2 structure. FT_SFNT_HHEA To access the font's TT_HoriHeader structure. FT_SFNT_VHEA To access the font's TT_VertHeader structure. FT_SFNT_POST To access the font's TT_Postscript structure. FT_SFNT_PCLT To access the font's TT_PCLT structure. FT_Get_Sfnt_Table \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( void * ) FT_Get_Sfnt_Table ( FT_Face face, FT_Sfnt_Tag tag ); Return a pointer to a given SFNT table stored within a face. input face A handle to the source. tag The index of the SFNT table. return A type-less pointer to the table. This will be NULL in case of error, or if the corresponding table was not found OR loaded from the file. Use a typecast according to tag to access the structure elements. note The table is owned by the face object and disappears with it. This function is only useful to access SFNT tables that are loaded by the sfnt, truetype, and opentype drivers. See FT_Sfnt_Tag for a list. example Here is an example demonstrating access to the \u2018vhea\u2019 table. TT_VertHeader* vert_header; vert_header = (TT_VertHeader*)FT_Get_Sfnt_Table( face, FT_SFNT_VHEA ); FT_Load_Sfnt_Table \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( FT_Error ) FT_Load_Sfnt_Table ( FT_Face face, FT_ULong tag, FT_Long offset, FT_Byte * buffer, FT_ULong * length ); Load any SFNT font table into client memory. input face A handle to the source face. tag The four-byte tag of the table to load. Use value 0 if you want to access the whole font file. Otherwise, you can use one of the definitions found in the FT_TRUETYPE_TAGS_H file, or forge a new one with FT_MAKE_TAG . offset The starting offset in the table (or file if tag == 0). output buffer The target buffer address. The client must ensure that the memory array is big enough to hold the data. inout length If the length parameter is NULL , try to load the whole table. Return an error code if it fails. Else, if *length is 0, exit immediately while returning the table's (or file) full size in it. Else the number of bytes to read from the table or file, from the starting offset. return FreeType error code. 0 means success. note If you need to determine the table's length you should first call this function with *length set to 0, as in the following example: FT_ULong length = 0; error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length ); if ( error ) { ... table does not exist ... } buffer = malloc( length ); if ( buffer == NULL ) { ... not enough memory ... } error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length ); if ( error ) { ... could not load table ... } Note that structures like TT_Header or TT_OS2 can't be used with this function; they are limited to FT_Get_Sfnt_Table . Reason is that those structures depend on the processor architecture, with varying size (e.g. 32bit vs. 64bit) or order (big endian vs. little endian). FT_Sfnt_Table_Info \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( FT_Error ) FT_Sfnt_Table_Info ( FT_Face face, FT_UInt table_index, FT_ULong *tag, FT_ULong *length ); Return information on an SFNT table. input face A handle to the source face. table_index The index of an SFNT table. The function returns FT_Err_Table_Missing for an invalid value. inout tag The name tag of the SFNT table. If the value is NULL , table_index is ignored, and length returns the number of SFNT tables in the font. output length The length of the SFNT table (or the number of SFNT tables, depending on tag ). return FreeType error code. 0 means success. note While parsing fonts, FreeType handles SFNT tables with length zero as missing. FT_Get_CMap_Language_ID \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( FT_ULong ) FT_Get_CMap_Language_ID ( FT_CharMap charmap ); Return cmap language ID as specified in the OpenType standard. Definitions of language ID values are in file FT_TRUETYPE_IDS_H . input charmap The target charmap. return The language ID of charmap . If charmap doesn't belong to an SFNT face, just return 0 as the default value. For a format 14 cmap (to access Unicode IVS), the return value is 0xFFFFFFFF. FT_Get_CMap_Format \u00b6 Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( FT_Long ) FT_Get_CMap_Format ( FT_CharMap charmap ); Return the format of an SFNT \u2018cmap\u2019 table. input charmap The target charmap. return The format of charmap . If charmap doesn't belong to an SFNT face, return -1. FT_PARAM_TAG_UNPATENTED_HINTING \u00b6 # define FT_PARAM_TAG_UNPATENTED_HINTING \\ FT_MAKE_TAG ( 'u', 'n', 'p', 'a' ) Deprecated, no effect. Previously: A constant used as the tag of an FT_Parameter structure to indicate that unpatented methods only should be used by the TrueType bytecode interpreter for a typeface opened by FT_Open_Face . TT_PLATFORM_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_PLATFORM_APPLE_UNICODE 0 # define TT_PLATFORM_MACINTOSH 1 # define TT_PLATFORM_ISO 2 /* deprecated */ # define TT_PLATFORM_MICROSOFT 3 # define TT_PLATFORM_CUSTOM 4 # define TT_PLATFORM_ADOBE 7 /* artificial */ A list of valid values for the platform_id identifier code in FT_CharMapRec and FT_SfntName structures. values TT_PLATFORM_APPLE_UNICODE Used by Apple to indicate a Unicode character map and/or name entry. See TT_APPLE_ID_XXX for corresponding encoding_id values. Note that name entries in this format are coded as big-endian UCS-2 character codes only . TT_PLATFORM_MACINTOSH Used by Apple to indicate a MacOS-specific charmap and/or name entry. See TT_MAC_ID_XXX for corresponding encoding_id values. Note that most TrueType fonts contain an Apple roman charmap to be usable on MacOS systems (even if they contain a Microsoft charmap as well). TT_PLATFORM_ISO This value was used to specify ISO/IEC 10646 charmaps. It is however now deprecated. See TT_ISO_ID_XXX for a list of corresponding encoding_id values. TT_PLATFORM_MICROSOFT Used by Microsoft to indicate Windows-specific charmaps. See TT_MS_ID_XXX for a list of corresponding encoding_id values. Note that most fonts contain a Unicode charmap using ( TT_PLATFORM_MICROSOFT , TT_MS_ID_UNICODE_CS ). TT_PLATFORM_CUSTOM Used to indicate application-specific charmaps. TT_PLATFORM_ADOBE This value isn't part of any font format specification, but is used by FreeType to report Adobe-specific charmaps in an FT_CharMapRec structure. See TT_ADOBE_ID_XXX . TT_APPLE_ID_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_APPLE_ID_DEFAULT 0 /* Unicode 1.0 */ # define TT_APPLE_ID_UNICODE_1_1 1 /* specify Hangul at U+34xx */ # define TT_APPLE_ID_ISO_10646 2 /* deprecated */ # define TT_APPLE_ID_UNICODE_2_0 3 /* or later */ # define TT_APPLE_ID_UNICODE_32 4 /* 2.0 or later, full repertoire */ # define TT_APPLE_ID_VARIANT_SELECTOR 5 /* variation selector data */ # define TT_APPLE_ID_FULL_UNICODE 6 /* used with type 13 cmaps */ A list of valid values for the encoding_id for TT_PLATFORM_APPLE_UNICODE charmaps and name entries. values TT_APPLE_ID_DEFAULT Unicode version 1.0. TT_APPLE_ID_UNICODE_1_1 Unicode 1.1; specifies Hangul characters starting at U+34xx. TT_APPLE_ID_ISO_10646 Deprecated (identical to preceding). TT_APPLE_ID_UNICODE_2_0 Unicode 2.0 and beyond (UTF-16 BMP only). TT_APPLE_ID_UNICODE_32 Unicode 3.1 and beyond, using UTF-32. TT_APPLE_ID_VARIANT_SELECTOR From Adobe, not Apple. Not a normal cmap. Specifies variations on a real cmap. TT_APPLE_ID_FULL_UNICODE Used for fallback fonts that provide complete Unicode coverage with a type 13 cmap. TT_MAC_ID_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_MAC_ID_ROMAN 0 # define TT_MAC_ID_JAPANESE 1 # define TT_MAC_ID_TRADITIONAL_CHINESE 2 # define TT_MAC_ID_KOREAN 3 # define TT_MAC_ID_ARABIC 4 # define TT_MAC_ID_HEBREW 5 # define TT_MAC_ID_GREEK 6 # define TT_MAC_ID_RUSSIAN 7 # define TT_MAC_ID_RSYMBOL 8 # define TT_MAC_ID_DEVANAGARI 9 # define TT_MAC_ID_GURMUKHI 10 # define TT_MAC_ID_GUJARATI 11 # define TT_MAC_ID_ORIYA 12 # define TT_MAC_ID_BENGALI 13 # define TT_MAC_ID_TAMIL 14 # define TT_MAC_ID_TELUGU 15 # define TT_MAC_ID_KANNADA 16 # define TT_MAC_ID_MALAYALAM 17 # define TT_MAC_ID_SINHALESE 18 # define TT_MAC_ID_BURMESE 19 # define TT_MAC_ID_KHMER 20 # define TT_MAC_ID_THAI 21 # define TT_MAC_ID_LAOTIAN 22 # define TT_MAC_ID_GEORGIAN 23 # define TT_MAC_ID_ARMENIAN 24 # define TT_MAC_ID_MALDIVIAN 25 # define TT_MAC_ID_SIMPLIFIED_CHINESE 25 # define TT_MAC_ID_TIBETAN 26 # define TT_MAC_ID_MONGOLIAN 27 # define TT_MAC_ID_GEEZ 28 # define TT_MAC_ID_SLAVIC 29 # define TT_MAC_ID_VIETNAMESE 30 # define TT_MAC_ID_SINDHI 31 # define TT_MAC_ID_UNINTERP 32 A list of valid values for the encoding_id for TT_PLATFORM_MACINTOSH charmaps and name entries. TT_ISO_ID_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_ISO_ID_7BIT_ASCII 0 # define TT_ISO_ID_10646 1 # define TT_ISO_ID_8859_1 2 A list of valid values for the encoding_id for TT_PLATFORM_ISO charmaps and name entries. Their use is now deprecated. values TT_ISO_ID_7BIT_ASCII ASCII. TT_ISO_ID_10646 ISO/10646. TT_ISO_ID_8859_1 Also known as Latin-1. TT_MS_ID_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_MS_ID_SYMBOL_CS 0 # define TT_MS_ID_UNICODE_CS 1 # define TT_MS_ID_SJIS 2 # define TT_MS_ID_PRC 3 # define TT_MS_ID_BIG_5 4 # define TT_MS_ID_WANSUNG 5 # define TT_MS_ID_JOHAB 6 # define TT_MS_ID_UCS_4 10 /* this value is deprecated */ # define TT_MS_ID_GB2312 TT_MS_ID_PRC A list of valid values for the encoding_id for TT_PLATFORM_MICROSOFT charmaps and name entries. values TT_MS_ID_SYMBOL_CS Microsoft symbol encoding. See FT_ENCODING_MS_SYMBOL . TT_MS_ID_UNICODE_CS Microsoft WGL4 charmap, matching Unicode. See FT_ENCODING_UNICODE . TT_MS_ID_SJIS Shift JIS Japanese encoding. See FT_ENCODING_SJIS . TT_MS_ID_PRC Chinese encodings as used in the People's Republic of China (PRC). This means the encodings GB 2312 and its supersets GBK and GB 18030. See FT_ENCODING_PRC . TT_MS_ID_BIG_5 Traditional Chinese as used in Taiwan and Hong Kong. See FT_ENCODING_BIG5 . TT_MS_ID_WANSUNG Korean Extended Wansung encoding. See FT_ENCODING_WANSUNG . TT_MS_ID_JOHAB Korean Johab encoding. See FT_ENCODING_JOHAB . TT_MS_ID_UCS_4 UCS-4 or UTF-32 charmaps. This has been added to the OpenType specification version 1.4 (mid-2001). TT_ADOBE_ID_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_ADOBE_ID_STANDARD 0 # define TT_ADOBE_ID_EXPERT 1 # define TT_ADOBE_ID_CUSTOM 2 # define TT_ADOBE_ID_LATIN_1 3 A list of valid values for the encoding_id for TT_PLATFORM_ADOBE charmaps. This is a FreeType-specific extension! values TT_ADOBE_ID_STANDARD Adobe standard encoding. TT_ADOBE_ID_EXPERT Adobe expert encoding. TT_ADOBE_ID_CUSTOM Adobe custom encoding. TT_ADOBE_ID_LATIN_1 Adobe Latin 1 encoding. TT_MAC_LANGID_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_MAC_LANGID_ENGLISH 0 # define TT_MAC_LANGID_FRENCH 1 # define TT_MAC_LANGID_GERMAN 2 # define TT_MAC_LANGID_ITALIAN 3 # define TT_MAC_LANGID_DUTCH 4 # define TT_MAC_LANGID_SWEDISH 5 # define TT_MAC_LANGID_SPANISH 6 # define TT_MAC_LANGID_DANISH 7 # define TT_MAC_LANGID_PORTUGUESE 8 # define TT_MAC_LANGID_NORWEGIAN 9 # define TT_MAC_LANGID_HEBREW 10 # define TT_MAC_LANGID_JAPANESE 11 # define TT_MAC_LANGID_ARABIC 12 # define TT_MAC_LANGID_FINNISH 13 # define TT_MAC_LANGID_GREEK 14 # define TT_MAC_LANGID_ICELANDIC 15 # define TT_MAC_LANGID_MALTESE 16 # define TT_MAC_LANGID_TURKISH 17 # define TT_MAC_LANGID_CROATIAN 18 # define TT_MAC_LANGID_CHINESE_TRADITIONAL 19 # define TT_MAC_LANGID_URDU 20 # define TT_MAC_LANGID_HINDI 21 # define TT_MAC_LANGID_THAI 22 # define TT_MAC_LANGID_KOREAN 23 # define TT_MAC_LANGID_LITHUANIAN 24 # define TT_MAC_LANGID_POLISH 25 # define TT_MAC_LANGID_HUNGARIAN 26 # define TT_MAC_LANGID_ESTONIAN 27 # define TT_MAC_LANGID_LETTISH 28 # define TT_MAC_LANGID_SAAMISK 29 # define TT_MAC_LANGID_FAEROESE 30 # define TT_MAC_LANGID_FARSI 31 # define TT_MAC_LANGID_RUSSIAN 32 # define TT_MAC_LANGID_CHINESE_SIMPLIFIED 33 # define TT_MAC_LANGID_FLEMISH 34 # define TT_MAC_LANGID_IRISH 35 # define TT_MAC_LANGID_ALBANIAN 36 # define TT_MAC_LANGID_ROMANIAN 37 # define TT_MAC_LANGID_CZECH 38 # define TT_MAC_LANGID_SLOVAK 39 # define TT_MAC_LANGID_SLOVENIAN 40 # define TT_MAC_LANGID_YIDDISH 41 # define TT_MAC_LANGID_SERBIAN 42 # define TT_MAC_LANGID_MACEDONIAN 43 # define TT_MAC_LANGID_BULGARIAN 44 # define TT_MAC_LANGID_UKRAINIAN 45 # define TT_MAC_LANGID_BYELORUSSIAN 46 # define TT_MAC_LANGID_UZBEK 47 # define TT_MAC_LANGID_KAZAKH 48 # define TT_MAC_LANGID_AZERBAIJANI 49 # define TT_MAC_LANGID_AZERBAIJANI_CYRILLIC_SCRIPT 49 # define TT_MAC_LANGID_AZERBAIJANI_ARABIC_SCRIPT 50 # define TT_MAC_LANGID_ARMENIAN 51 # define TT_MAC_LANGID_GEORGIAN 52 # define TT_MAC_LANGID_MOLDAVIAN 53 # define TT_MAC_LANGID_KIRGHIZ 54 # define TT_MAC_LANGID_TAJIKI 55 # define TT_MAC_LANGID_TURKMEN 56 # define TT_MAC_LANGID_MONGOLIAN 57 # define TT_MAC_LANGID_MONGOLIAN_MONGOLIAN_SCRIPT 57 # define TT_MAC_LANGID_MONGOLIAN_CYRILLIC_SCRIPT 58 # define TT_MAC_LANGID_PASHTO 59 # define TT_MAC_LANGID_KURDISH 60 # define TT_MAC_LANGID_KASHMIRI 61 # define TT_MAC_LANGID_SINDHI 62 # define TT_MAC_LANGID_TIBETAN 63 # define TT_MAC_LANGID_NEPALI 64 # define TT_MAC_LANGID_SANSKRIT 65 # define TT_MAC_LANGID_MARATHI 66 # define TT_MAC_LANGID_BENGALI 67 # define TT_MAC_LANGID_ASSAMESE 68 # define TT_MAC_LANGID_GUJARATI 69 # define TT_MAC_LANGID_PUNJABI 70 # define TT_MAC_LANGID_ORIYA 71 # define TT_MAC_LANGID_MALAYALAM 72 # define TT_MAC_LANGID_KANNADA 73 # define TT_MAC_LANGID_TAMIL 74 # define TT_MAC_LANGID_TELUGU 75 # define TT_MAC_LANGID_SINHALESE 76 # define TT_MAC_LANGID_BURMESE 77 # define TT_MAC_LANGID_KHMER 78 # define TT_MAC_LANGID_LAO 79 # define TT_MAC_LANGID_VIETNAMESE 80 # define TT_MAC_LANGID_INDONESIAN 81 # define TT_MAC_LANGID_TAGALOG 82 # define TT_MAC_LANGID_MALAY_ROMAN_SCRIPT 83 # define TT_MAC_LANGID_MALAY_ARABIC_SCRIPT 84 # define TT_MAC_LANGID_AMHARIC 85 # define TT_MAC_LANGID_TIGRINYA 86 # define TT_MAC_LANGID_GALLA 87 # define TT_MAC_LANGID_SOMALI 88 # define TT_MAC_LANGID_SWAHILI 89 # define TT_MAC_LANGID_RUANDA 90 # define TT_MAC_LANGID_RUNDI 91 # define TT_MAC_LANGID_CHEWA 92 # define TT_MAC_LANGID_MALAGASY 93 # define TT_MAC_LANGID_ESPERANTO 94 # define TT_MAC_LANGID_WELSH 128 # define TT_MAC_LANGID_BASQUE 129 # define TT_MAC_LANGID_CATALAN 130 # define TT_MAC_LANGID_LATIN 131 # define TT_MAC_LANGID_QUECHUA 132 # define TT_MAC_LANGID_GUARANI 133 # define TT_MAC_LANGID_AYMARA 134 # define TT_MAC_LANGID_TATAR 135 # define TT_MAC_LANGID_UIGHUR 136 # define TT_MAC_LANGID_DZONGKHA 137 # define TT_MAC_LANGID_JAVANESE 138 # define TT_MAC_LANGID_SUNDANESE 139 /* The following codes are new as of 2000-03-10 */ # define TT_MAC_LANGID_GALICIAN 140 # define TT_MAC_LANGID_AFRIKAANS 141 # define TT_MAC_LANGID_BRETON 142 # define TT_MAC_LANGID_INUKTITUT 143 # define TT_MAC_LANGID_SCOTTISH_GAELIC 144 # define TT_MAC_LANGID_MANX_GAELIC 145 # define TT_MAC_LANGID_IRISH_GAELIC 146 # define TT_MAC_LANGID_TONGAN 147 # define TT_MAC_LANGID_GREEK_POLYTONIC 148 # define TT_MAC_LANGID_GREELANDIC 149 # define TT_MAC_LANGID_AZERBAIJANI_ROMAN_SCRIPT 150 Possible values of the language identifier field in the name records of the SFNT \u2018name\u2019 table if the \u2018platform\u2019 identifier code is TT_PLATFORM_MACINTOSH . These values are also used as return values for function FT_Get_CMap_Language_ID . The canonical source for Apple's IDs is https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6name.html TT_MS_LANGID_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_MS_LANGID_ARABIC_SAUDI_ARABIA 0x0401 # define TT_MS_LANGID_ARABIC_IRAQ 0x0801 # define TT_MS_LANGID_ARABIC_EGYPT 0x0C01 # define TT_MS_LANGID_ARABIC_LIBYA 0x1001 # define TT_MS_LANGID_ARABIC_ALGERIA 0x1401 # define TT_MS_LANGID_ARABIC_MOROCCO 0x1801 # define TT_MS_LANGID_ARABIC_TUNISIA 0x1C01 # define TT_MS_LANGID_ARABIC_OMAN 0x2001 # define TT_MS_LANGID_ARABIC_YEMEN 0x2401 # define TT_MS_LANGID_ARABIC_SYRIA 0x2801 # define TT_MS_LANGID_ARABIC_JORDAN 0x2C01 # define TT_MS_LANGID_ARABIC_LEBANON 0x3001 # define TT_MS_LANGID_ARABIC_KUWAIT 0x3401 # define TT_MS_LANGID_ARABIC_UAE 0x3801 # define TT_MS_LANGID_ARABIC_BAHRAIN 0x3C01 # define TT_MS_LANGID_ARABIC_QATAR 0x4001 # define TT_MS_LANGID_BULGARIAN_BULGARIA 0x0402 # define TT_MS_LANGID_CATALAN_CATALAN 0x0403 # define TT_MS_LANGID_CHINESE_TAIWAN 0x0404 # define TT_MS_LANGID_CHINESE_PRC 0x0804 # define TT_MS_LANGID_CHINESE_HONG_KONG 0x0C04 # define TT_MS_LANGID_CHINESE_SINGAPORE 0x1004 # define TT_MS_LANGID_CHINESE_MACAO 0x1404 # define TT_MS_LANGID_CZECH_CZECH_REPUBLIC 0x0405 # define TT_MS_LANGID_DANISH_DENMARK 0x0406 # define TT_MS_LANGID_GERMAN_GERMANY 0x0407 # define TT_MS_LANGID_GERMAN_SWITZERLAND 0x0807 # define TT_MS_LANGID_GERMAN_AUSTRIA 0x0C07 # define TT_MS_LANGID_GERMAN_LUXEMBOURG 0x1007 # define TT_MS_LANGID_GERMAN_LIECHTENSTEIN 0x1407 # define TT_MS_LANGID_GREEK_GREECE 0x0408 # define TT_MS_LANGID_ENGLISH_UNITED_STATES 0x0409 # define TT_MS_LANGID_ENGLISH_UNITED_KINGDOM 0x0809 # define TT_MS_LANGID_ENGLISH_AUSTRALIA 0x0C09 # define TT_MS_LANGID_ENGLISH_CANADA 0x1009 # define TT_MS_LANGID_ENGLISH_NEW_ZEALAND 0x1409 # define TT_MS_LANGID_ENGLISH_IRELAND 0x1809 # define TT_MS_LANGID_ENGLISH_SOUTH_AFRICA 0x1C09 # define TT_MS_LANGID_ENGLISH_JAMAICA 0x2009 # define TT_MS_LANGID_ENGLISH_CARIBBEAN 0x2409 # define TT_MS_LANGID_ENGLISH_BELIZE 0x2809 # define TT_MS_LANGID_ENGLISH_TRINIDAD 0x2C09 # define TT_MS_LANGID_ENGLISH_ZIMBABWE 0x3009 # define TT_MS_LANGID_ENGLISH_PHILIPPINES 0x3409 # define TT_MS_LANGID_ENGLISH_INDIA 0x4009 # define TT_MS_LANGID_ENGLISH_MALAYSIA 0x4409 # define TT_MS_LANGID_ENGLISH_SINGAPORE 0x4809 # define TT_MS_LANGID_SPANISH_SPAIN_TRADITIONAL_SORT 0x040A # define TT_MS_LANGID_SPANISH_MEXICO 0x080A # define TT_MS_LANGID_SPANISH_SPAIN_MODERN_SORT 0x0C0A # define TT_MS_LANGID_SPANISH_GUATEMALA 0x100A # define TT_MS_LANGID_SPANISH_COSTA_RICA 0x140A # define TT_MS_LANGID_SPANISH_PANAMA 0x180A # define TT_MS_LANGID_SPANISH_DOMINICAN_REPUBLIC 0x1C0A # define TT_MS_LANGID_SPANISH_VENEZUELA 0x200A # define TT_MS_LANGID_SPANISH_COLOMBIA 0x240A # define TT_MS_LANGID_SPANISH_PERU 0x280A # define TT_MS_LANGID_SPANISH_ARGENTINA 0x2C0A # define TT_MS_LANGID_SPANISH_ECUADOR 0x300A # define TT_MS_LANGID_SPANISH_CHILE 0x340A # define TT_MS_LANGID_SPANISH_URUGUAY 0x380A # define TT_MS_LANGID_SPANISH_PARAGUAY 0x3C0A # define TT_MS_LANGID_SPANISH_BOLIVIA 0x400A # define TT_MS_LANGID_SPANISH_EL_SALVADOR 0x440A # define TT_MS_LANGID_SPANISH_HONDURAS 0x480A # define TT_MS_LANGID_SPANISH_NICARAGUA 0x4C0A # define TT_MS_LANGID_SPANISH_PUERTO_RICO 0x500A # define TT_MS_LANGID_SPANISH_UNITED_STATES 0x540A # define TT_MS_LANGID_FINNISH_FINLAND 0x040B # define TT_MS_LANGID_FRENCH_FRANCE 0x040C # define TT_MS_LANGID_FRENCH_BELGIUM 0x080C # define TT_MS_LANGID_FRENCH_CANADA 0x0C0C # define TT_MS_LANGID_FRENCH_SWITZERLAND 0x100C # define TT_MS_LANGID_FRENCH_LUXEMBOURG 0x140C # define TT_MS_LANGID_FRENCH_MONACO 0x180C # define TT_MS_LANGID_HEBREW_ISRAEL 0x040D # define TT_MS_LANGID_HUNGARIAN_HUNGARY 0x040E # define TT_MS_LANGID_ICELANDIC_ICELAND 0x040F # define TT_MS_LANGID_ITALIAN_ITALY 0x0410 # define TT_MS_LANGID_ITALIAN_SWITZERLAND 0x0810 # define TT_MS_LANGID_JAPANESE_JAPAN 0x0411 # define TT_MS_LANGID_KOREAN_KOREA 0x0412 # define TT_MS_LANGID_DUTCH_NETHERLANDS 0x0413 # define TT_MS_LANGID_DUTCH_BELGIUM 0x0813 # define TT_MS_LANGID_NORWEGIAN_NORWAY_BOKMAL 0x0414 # define TT_MS_LANGID_NORWEGIAN_NORWAY_NYNORSK 0x0814 # define TT_MS_LANGID_POLISH_POLAND 0x0415 # define TT_MS_LANGID_PORTUGUESE_BRAZIL 0x0416 # define TT_MS_LANGID_PORTUGUESE_PORTUGAL 0x0816 # define TT_MS_LANGID_ROMANSH_SWITZERLAND 0x0417 # define TT_MS_LANGID_ROMANIAN_ROMANIA 0x0418 # define TT_MS_LANGID_RUSSIAN_RUSSIA 0x0419 # define TT_MS_LANGID_CROATIAN_CROATIA 0x041A # define TT_MS_LANGID_SERBIAN_SERBIA_LATIN 0x081A # define TT_MS_LANGID_SERBIAN_SERBIA_CYRILLIC 0x0C1A # define TT_MS_LANGID_CROATIAN_BOSNIA_HERZEGOVINA 0x101A # define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZEGOVINA 0x141A # define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_LATIN 0x181A # define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_CYRILLIC 0x1C1A # define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZ_CYRILLIC 0x201A # define TT_MS_LANGID_SLOVAK_SLOVAKIA 0x041B # define TT_MS_LANGID_ALBANIAN_ALBANIA 0x041C # define TT_MS_LANGID_SWEDISH_SWEDEN 0x041D # define TT_MS_LANGID_SWEDISH_FINLAND 0x081D # define TT_MS_LANGID_THAI_THAILAND 0x041E # define TT_MS_LANGID_TURKISH_TURKEY 0x041F # define TT_MS_LANGID_URDU_PAKISTAN 0x0420 # define TT_MS_LANGID_INDONESIAN_INDONESIA 0x0421 # define TT_MS_LANGID_UKRAINIAN_UKRAINE 0x0422 # define TT_MS_LANGID_BELARUSIAN_BELARUS 0x0423 # define TT_MS_LANGID_SLOVENIAN_SLOVENIA 0x0424 # define TT_MS_LANGID_ESTONIAN_ESTONIA 0x0425 # define TT_MS_LANGID_LATVIAN_LATVIA 0x0426 # define TT_MS_LANGID_LITHUANIAN_LITHUANIA 0x0427 # define TT_MS_LANGID_TAJIK_TAJIKISTAN 0x0428 # define TT_MS_LANGID_VIETNAMESE_VIET_NAM 0x042A # define TT_MS_LANGID_ARMENIAN_ARMENIA 0x042B # define TT_MS_LANGID_AZERI_AZERBAIJAN_LATIN 0x042C # define TT_MS_LANGID_AZERI_AZERBAIJAN_CYRILLIC 0x082C # define TT_MS_LANGID_BASQUE_BASQUE 0x042D # define TT_MS_LANGID_UPPER_SORBIAN_GERMANY 0x042E # define TT_MS_LANGID_LOWER_SORBIAN_GERMANY 0x082E # define TT_MS_LANGID_MACEDONIAN_MACEDONIA 0x042F # define TT_MS_LANGID_SETSWANA_SOUTH_AFRICA 0x0432 # define TT_MS_LANGID_ISIXHOSA_SOUTH_AFRICA 0x0434 # define TT_MS_LANGID_ISIZULU_SOUTH_AFRICA 0x0435 # define TT_MS_LANGID_AFRIKAANS_SOUTH_AFRICA 0x0436 # define TT_MS_LANGID_GEORGIAN_GEORGIA 0x0437 # define TT_MS_LANGID_FAEROESE_FAEROE_ISLANDS 0x0438 # define TT_MS_LANGID_HINDI_INDIA 0x0439 # define TT_MS_LANGID_MALTESE_MALTA 0x043A # define TT_MS_LANGID_SAMI_NORTHERN_NORWAY 0x043B # define TT_MS_LANGID_SAMI_NORTHERN_SWEDEN 0x083B # define TT_MS_LANGID_SAMI_NORTHERN_FINLAND 0x0C3B # define TT_MS_LANGID_SAMI_LULE_NORWAY 0x103B # define TT_MS_LANGID_SAMI_LULE_SWEDEN 0x143B # define TT_MS_LANGID_SAMI_SOUTHERN_NORWAY 0x183B # define TT_MS_LANGID_SAMI_SOUTHERN_SWEDEN 0x1C3B # define TT_MS_LANGID_SAMI_SKOLT_FINLAND 0x203B # define TT_MS_LANGID_SAMI_INARI_FINLAND 0x243B # define TT_MS_LANGID_IRISH_IRELAND 0x083C # define TT_MS_LANGID_MALAY_MALAYSIA 0x043E # define TT_MS_LANGID_MALAY_BRUNEI_DARUSSALAM 0x083E # define TT_MS_LANGID_KAZAKH_KAZAKHSTAN 0x043F # define TT_MS_LANGID_KYRGYZ_KYRGYZSTAN /* Cyrillic */ 0x0440 # define TT_MS_LANGID_KISWAHILI_KENYA 0x0441 # define TT_MS_LANGID_TURKMEN_TURKMENISTAN 0x0442 # define TT_MS_LANGID_UZBEK_UZBEKISTAN_LATIN 0x0443 # define TT_MS_LANGID_UZBEK_UZBEKISTAN_CYRILLIC 0x0843 # define TT_MS_LANGID_TATAR_RUSSIA 0x0444 # define TT_MS_LANGID_BENGALI_INDIA 0x0445 # define TT_MS_LANGID_BENGALI_BANGLADESH 0x0845 # define TT_MS_LANGID_PUNJABI_INDIA 0x0446 # define TT_MS_LANGID_GUJARATI_INDIA 0x0447 # define TT_MS_LANGID_ODIA_INDIA 0x0448 # define TT_MS_LANGID_TAMIL_INDIA 0x0449 # define TT_MS_LANGID_TELUGU_INDIA 0x044A # define TT_MS_LANGID_KANNADA_INDIA 0x044B # define TT_MS_LANGID_MALAYALAM_INDIA 0x044C # define TT_MS_LANGID_ASSAMESE_INDIA 0x044D # define TT_MS_LANGID_MARATHI_INDIA 0x044E # define TT_MS_LANGID_SANSKRIT_INDIA 0x044F # define TT_MS_LANGID_MONGOLIAN_MONGOLIA /* Cyrillic */ 0x0450 # define TT_MS_LANGID_MONGOLIAN_PRC 0x0850 # define TT_MS_LANGID_TIBETAN_PRC 0x0451 # define TT_MS_LANGID_WELSH_UNITED_KINGDOM 0x0452 # define TT_MS_LANGID_KHMER_CAMBODIA 0x0453 # define TT_MS_LANGID_LAO_LAOS 0x0454 # define TT_MS_LANGID_GALICIAN_GALICIAN 0x0456 # define TT_MS_LANGID_KONKANI_INDIA 0x0457 # define TT_MS_LANGID_SYRIAC_SYRIA 0x045A # define TT_MS_LANGID_SINHALA_SRI_LANKA 0x045B # define TT_MS_LANGID_INUKTITUT_CANADA 0x045D # define TT_MS_LANGID_INUKTITUT_CANADA_LATIN 0x085D # define TT_MS_LANGID_AMHARIC_ETHIOPIA 0x045E # define TT_MS_LANGID_TAMAZIGHT_ALGERIA 0x085F # define TT_MS_LANGID_NEPALI_NEPAL 0x0461 # define TT_MS_LANGID_FRISIAN_NETHERLANDS 0x0462 # define TT_MS_LANGID_PASHTO_AFGHANISTAN 0x0463 # define TT_MS_LANGID_FILIPINO_PHILIPPINES 0x0464 # define TT_MS_LANGID_DHIVEHI_MALDIVES 0x0465 # define TT_MS_LANGID_HAUSA_NIGERIA 0x0468 # define TT_MS_LANGID_YORUBA_NIGERIA 0x046A # define TT_MS_LANGID_QUECHUA_BOLIVIA 0x046B # define TT_MS_LANGID_QUECHUA_ECUADOR 0x086B # define TT_MS_LANGID_QUECHUA_PERU 0x0C6B # define TT_MS_LANGID_SESOTHO_SA_LEBOA_SOUTH_AFRICA 0x046C # define TT_MS_LANGID_BASHKIR_RUSSIA 0x046D # define TT_MS_LANGID_LUXEMBOURGISH_LUXEMBOURG 0x046E # define TT_MS_LANGID_GREENLANDIC_GREENLAND 0x046F # define TT_MS_LANGID_IGBO_NIGERIA 0x0470 # define TT_MS_LANGID_YI_PRC 0x0478 # define TT_MS_LANGID_MAPUDUNGUN_CHILE 0x047A # define TT_MS_LANGID_MOHAWK_MOHAWK 0x047C # define TT_MS_LANGID_BRETON_FRANCE 0x047E # define TT_MS_LANGID_UIGHUR_PRC 0x0480 # define TT_MS_LANGID_MAORI_NEW_ZEALAND 0x0481 # define TT_MS_LANGID_OCCITAN_FRANCE 0x0482 # define TT_MS_LANGID_CORSICAN_FRANCE 0x0483 # define TT_MS_LANGID_ALSATIAN_FRANCE 0x0484 # define TT_MS_LANGID_YAKUT_RUSSIA 0x0485 # define TT_MS_LANGID_KICHE_GUATEMALA 0x0486 # define TT_MS_LANGID_KINYARWANDA_RWANDA 0x0487 # define TT_MS_LANGID_WOLOF_SENEGAL 0x0488 # define TT_MS_LANGID_DARI_AFGHANISTAN 0x048C Possible values of the language identifier field in the name records of the SFNT \u2018name\u2019 table if the \u2018platform\u2019 identifier code is TT_PLATFORM_MICROSOFT . These values are also used as return values for function FT_Get_CMap_Language_ID . The canonical source for Microsoft's IDs is https://docs.microsoft.com/en-us/windows/desktop/Intl/language-identifier-constants-and-strings , however, we only provide macros for language identifiers present in the OpenType specification: Microsoft has abandoned the concept of LCIDs (language code identifiers), and format 1 of the \u2018name\u2019 table provides a better mechanism for languages not covered here. More legacy values not listed in the reference can be found in the FT_TRUETYPE_IDS_H header file. TT_NAME_ID_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_NAME_ID_COPYRIGHT 0 # define TT_NAME_ID_FONT_FAMILY 1 # define TT_NAME_ID_FONT_SUBFAMILY 2 # define TT_NAME_ID_UNIQUE_ID 3 # define TT_NAME_ID_FULL_NAME 4 # define TT_NAME_ID_VERSION_STRING 5 # define TT_NAME_ID_PS_NAME 6 # define TT_NAME_ID_TRADEMARK 7 /* the following values are from the OpenType spec */ # define TT_NAME_ID_MANUFACTURER 8 # define TT_NAME_ID_DESIGNER 9 # define TT_NAME_ID_DESCRIPTION 10 # define TT_NAME_ID_VENDOR_URL 11 # define TT_NAME_ID_DESIGNER_URL 12 # define TT_NAME_ID_LICENSE 13 # define TT_NAME_ID_LICENSE_URL 14 /* number 15 is reserved */ # define TT_NAME_ID_TYPOGRAPHIC_FAMILY 16 # define TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY 17 # define TT_NAME_ID_MAC_FULL_NAME 18 /* The following code is new as of 2000-01-21 */ # define TT_NAME_ID_SAMPLE_TEXT 19 /* This is new in OpenType 1.3 */ # define TT_NAME_ID_CID_FINDFONT_NAME 20 /* This is new in OpenType 1.5 */ # define TT_NAME_ID_WWS_FAMILY 21 # define TT_NAME_ID_WWS_SUBFAMILY 22 /* This is new in OpenType 1.7 */ # define TT_NAME_ID_LIGHT_BACKGROUND 23 # define TT_NAME_ID_DARK_BACKGROUND 24 /* This is new in OpenType 1.8 */ # define TT_NAME_ID_VARIATIONS_PREFIX 25 /* these two values are deprecated */ # define TT_NAME_ID_PREFERRED_FAMILY TT_NAME_ID_TYPOGRAPHIC_FAMILY # define TT_NAME_ID_PREFERRED_SUBFAMILY TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY Possible values of the \u2018name\u2019 identifier field in the name records of an SFNT \u2018name\u2019 table. These values are platform independent. TT_UCR_XXX \u00b6 Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). /* ulUnicodeRange1 */ /* --------------- */ /* Bit 0 Basic Latin */ # define TT_UCR_BASIC_LATIN (1L << 0) /* U+0020-U+007E */ /* Bit 1 C1 Controls and Latin-1 Supplement */ # define TT_UCR_LATIN1_SUPPLEMENT (1L << 1) /* U+0080-U+00FF */ /* Bit 2 Latin Extended-A */ # define TT_UCR_LATIN_EXTENDED_A (1L << 2) /* U+0100-U+017F */ /* Bit 3 Latin Extended-B */ # define TT_UCR_LATIN_EXTENDED_B (1L << 3) /* U+0180-U+024F */ /* Bit 4 IPA Extensions */ /* Phonetic Extensions */ /* Phonetic Extensions Supplement */ # define TT_UCR_IPA_EXTENSIONS (1L << 4) /* U+0250-U+02AF */ /* U+1D00-U+1D7F */ /* U+1D80-U+1DBF */ /* Bit 5 Spacing Modifier Letters */ /* Modifier Tone Letters */ # define TT_UCR_SPACING_MODIFIER (1L << 5) /* U+02B0-U+02FF */ /* U+A700-U+A71F */ /* Bit 6 Combining Diacritical Marks */ /* Combining Diacritical Marks Supplement */ # define TT_UCR_COMBINING_DIACRITICAL_MARKS (1L << 6) /* U+0300-U+036F */ /* U+1DC0-U+1DFF */ /* Bit 7 Greek and Coptic */ # define TT_UCR_GREEK (1L << 7) /* U+0370-U+03FF */ /* Bit 8 Coptic */ # define TT_UCR_COPTIC (1L << 8) /* U+2C80-U+2CFF */ /* Bit 9 Cyrillic */ /* Cyrillic Supplement */ /* Cyrillic Extended-A */ /* Cyrillic Extended-B */ # define TT_UCR_CYRILLIC (1L << 9) /* U+0400-U+04FF */ /* U+0500-U+052F */ /* U+2DE0-U+2DFF */ /* U+A640-U+A69F */ /* Bit 10 Armenian */ # define TT_UCR_ARMENIAN (1L << 10) /* U+0530-U+058F */ /* Bit 11 Hebrew */ # define TT_UCR_HEBREW (1L << 11) /* U+0590-U+05FF */ /* Bit 12 Vai */ # define TT_UCR_VAI (1L << 12) /* U+A500-U+A63F */ /* Bit 13 Arabic */ /* Arabic Supplement */ # define TT_UCR_ARABIC (1L << 13) /* U+0600-U+06FF */ /* U+0750-U+077F */ /* Bit 14 NKo */ # define TT_UCR_NKO (1L << 14) /* U+07C0-U+07FF */ /* Bit 15 Devanagari */ # define TT_UCR_DEVANAGARI (1L << 15) /* U+0900-U+097F */ /* Bit 16 Bengali */ # define TT_UCR_BENGALI (1L << 16) /* U+0980-U+09FF */ /* Bit 17 Gurmukhi */ # define TT_UCR_GURMUKHI (1L << 17) /* U+0A00-U+0A7F */ /* Bit 18 Gujarati */ # define TT_UCR_GUJARATI (1L << 18) /* U+0A80-U+0AFF */ /* Bit 19 Oriya */ # define TT_UCR_ORIYA (1L << 19) /* U+0B00-U+0B7F */ /* Bit 20 Tamil */ # define TT_UCR_TAMIL (1L << 20) /* U+0B80-U+0BFF */ /* Bit 21 Telugu */ # define TT_UCR_TELUGU (1L << 21) /* U+0C00-U+0C7F */ /* Bit 22 Kannada */ # define TT_UCR_KANNADA (1L << 22) /* U+0C80-U+0CFF */ /* Bit 23 Malayalam */ # define TT_UCR_MALAYALAM (1L << 23) /* U+0D00-U+0D7F */ /* Bit 24 Thai */ # define TT_UCR_THAI (1L << 24) /* U+0E00-U+0E7F */ /* Bit 25 Lao */ # define TT_UCR_LAO (1L << 25) /* U+0E80-U+0EFF */ /* Bit 26 Georgian */ /* Georgian Supplement */ # define TT_UCR_GEORGIAN (1L << 26) /* U+10A0-U+10FF */ /* U+2D00-U+2D2F */ /* Bit 27 Balinese */ # define TT_UCR_BALINESE (1L << 27) /* U+1B00-U+1B7F */ /* Bit 28 Hangul Jamo */ # define TT_UCR_HANGUL_JAMO (1L << 28) /* U+1100-U+11FF */ /* Bit 29 Latin Extended Additional */ /* Latin Extended-C */ /* Latin Extended-D */ # define TT_UCR_LATIN_EXTENDED_ADDITIONAL (1L << 29) /* U+1E00-U+1EFF */ /* U+2C60-U+2C7F */ /* U+A720-U+A7FF */ /* Bit 30 Greek Extended */ # define TT_UCR_GREEK_EXTENDED (1L << 30) /* U+1F00-U+1FFF */ /* Bit 31 General Punctuation */ /* Supplemental Punctuation */ # define TT_UCR_GENERAL_PUNCTUATION (1L << 31) /* U+2000-U+206F */ /* U+2E00-U+2E7F */ /* ulUnicodeRange2 */ /* --------------- */ /* Bit 32 Superscripts And Subscripts */ # define TT_UCR_SUPERSCRIPTS_SUBSCRIPTS (1L << 0) /* U+2070-U+209F */ /* Bit 33 Currency Symbols */ # define TT_UCR_CURRENCY_SYMBOLS (1L << 1) /* U+20A0-U+20CF */ /* Bit 34 Combining Diacritical Marks For Symbols */ # define TT_UCR_COMBINING_DIACRITICAL_MARKS_SYMB \\ (1L << 2) /* U+20D0-U+20FF */ /* Bit 35 Letterlike Symbols */ # define TT_UCR_LETTERLIKE_SYMBOLS (1L << 3) /* U+2100-U+214F */ /* Bit 36 Number Forms */ # define TT_UCR_NUMBER_FORMS (1L << 4) /* U+2150-U+218F */ /* Bit 37 Arrows */ /* Supplemental Arrows-A */ /* Supplemental Arrows-B */ /* Miscellaneous Symbols and Arrows */ # define TT_UCR_ARROWS (1L << 5) /* U+2190-U+21FF */ /* U+27F0-U+27FF */ /* U+2900-U+297F */ /* U+2B00-U+2BFF */ /* Bit 38 Mathematical Operators */ /* Supplemental Mathematical Operators */ /* Miscellaneous Mathematical Symbols-A */ /* Miscellaneous Mathematical Symbols-B */ # define TT_UCR_MATHEMATICAL_OPERATORS (1L << 6) /* U+2200-U+22FF */ /* U+2A00-U+2AFF */ /* U+27C0-U+27EF */ /* U+2980-U+29FF */ /* Bit 39 Miscellaneous Technical */ # define TT_UCR_MISCELLANEOUS_TECHNICAL (1L << 7) /* U+2300-U+23FF */ /* Bit 40 Control Pictures */ # define TT_UCR_CONTROL_PICTURES (1L << 8) /* U+2400-U+243F */ /* Bit 41 Optical Character Recognition */ # define TT_UCR_OCR (1L << 9) /* U+2440-U+245F */ /* Bit 42 Enclosed Alphanumerics */ # define TT_UCR_ENCLOSED_ALPHANUMERICS (1L << 10) /* U+2460-U+24FF */ /* Bit 43 Box Drawing */ # define TT_UCR_BOX_DRAWING (1L << 11) /* U+2500-U+257F */ /* Bit 44 Block Elements */ # define TT_UCR_BLOCK_ELEMENTS (1L << 12) /* U+2580-U+259F */ /* Bit 45 Geometric Shapes */ # define TT_UCR_GEOMETRIC_SHAPES (1L << 13) /* U+25A0-U+25FF */ /* Bit 46 Miscellaneous Symbols */ # define TT_UCR_MISCELLANEOUS_SYMBOLS (1L << 14) /* U+2600-U+26FF */ /* Bit 47 Dingbats */ # define TT_UCR_DINGBATS (1L << 15) /* U+2700-U+27BF */ /* Bit 48 CJK Symbols and Punctuation */ # define TT_UCR_CJK_SYMBOLS (1L << 16) /* U+3000-U+303F */ /* Bit 49 Hiragana */ # define TT_UCR_HIRAGANA (1L << 17) /* U+3040-U+309F */ /* Bit 50 Katakana */ /* Katakana Phonetic Extensions */ # define TT_UCR_KATAKANA (1L << 18) /* U+30A0-U+30FF */ /* U+31F0-U+31FF */ /* Bit 51 Bopomofo */ /* Bopomofo Extended */ # define TT_UCR_BOPOMOFO (1L << 19) /* U+3100-U+312F */ /* U+31A0-U+31BF */ /* Bit 52 Hangul Compatibility Jamo */ # define TT_UCR_HANGUL_COMPATIBILITY_JAMO (1L << 20) /* U+3130-U+318F */ /* Bit 53 Phags-Pa */ # define TT_UCR_CJK_MISC (1L << 21) /* U+A840-U+A87F */ # define TT_UCR_KANBUN TT_UCR_CJK_MISC /* deprecated */ # define TT_UCR_PHAGSPA /* Bit 54 Enclosed CJK Letters and Months */ # define TT_UCR_ENCLOSED_CJK_LETTERS_MONTHS (1L << 22) /* U+3200-U+32FF */ /* Bit 55 CJK Compatibility */ # define TT_UCR_CJK_COMPATIBILITY (1L << 23) /* U+3300-U+33FF */ /* Bit 56 Hangul Syllables */ # define TT_UCR_HANGUL (1L << 24) /* U+AC00-U+D7A3 */ /* Bit 57 High Surrogates */ /* High Private Use Surrogates */ /* Low Surrogates */ /* According to OpenType specs v.1.3+, */ /* setting bit 57 implies that there is */ /* at least one codepoint beyond the */ /* Basic Multilingual Plane that is */ /* supported by this font. So it really */ /* means >= U+10000. */ # define TT_UCR_SURROGATES (1L << 25) /* U+D800-U+DB7F */ /* U+DB80-U+DBFF */ /* U+DC00-U+DFFF */ # define TT_UCR_NON_PLANE_0 TT_UCR_SURROGATES /* Bit 58 Phoenician */ # define TT_UCR_PHOENICIAN (1L << 26) /*U+10900-U+1091F*/ /* Bit 59 CJK Unified Ideographs */ /* CJK Radicals Supplement */ /* Kangxi Radicals */ /* Ideographic Description Characters */ /* CJK Unified Ideographs Extension A */ /* CJK Unified Ideographs Extension B */ /* Kanbun */ # define TT_UCR_CJK_UNIFIED_IDEOGRAPHS (1L << 27) /* U+4E00-U+9FFF */ /* U+2E80-U+2EFF */ /* U+2F00-U+2FDF */ /* U+2FF0-U+2FFF */ /* U+3400-U+4DB5 */ /*U+20000-U+2A6DF*/ /* U+3190-U+319F */ /* Bit 60 Private Use */ # define TT_UCR_PRIVATE_USE (1L << 28) /* U+E000-U+F8FF */ /* Bit 61 CJK Strokes */ /* CJK Compatibility Ideographs */ /* CJK Compatibility Ideographs Supplement */ # define TT_UCR_CJK_COMPATIBILITY_IDEOGRAPHS (1L << 29) /* U+31C0-U+31EF */ /* U+F900-U+FAFF */ /*U+2F800-U+2FA1F*/ /* Bit 62 Alphabetic Presentation Forms */ # define TT_UCR_ALPHABETIC_PRESENTATION_FORMS (1L << 30) /* U+FB00-U+FB4F */ /* Bit 63 Arabic Presentation Forms-A */ # define TT_UCR_ARABIC_PRESENTATION_FORMS_A (1L << 31) /* U+FB50-U+FDFF */ /* ulUnicodeRange3 */ /* --------------- */ /* Bit 64 Combining Half Marks */ # define TT_UCR_COMBINING_HALF_MARKS (1L << 0) /* U+FE20-U+FE2F */ /* Bit 65 Vertical forms */ /* CJK Compatibility Forms */ # define TT_UCR_CJK_COMPATIBILITY_FORMS (1L << 1) /* U+FE10-U+FE1F */ /* U+FE30-U+FE4F */ /* Bit 66 Small Form Variants */ # define TT_UCR_SMALL_FORM_VARIANTS (1L << 2) /* U+FE50-U+FE6F */ /* Bit 67 Arabic Presentation Forms-B */ # define TT_UCR_ARABIC_PRESENTATION_FORMS_B (1L << 3) /* U+FE70-U+FEFE */ /* Bit 68 Halfwidth and Fullwidth Forms */ # define TT_UCR_HALFWIDTH_FULLWIDTH_FORMS (1L << 4) /* U+FF00-U+FFEF */ /* Bit 69 Specials */ # define TT_UCR_SPECIALS (1L << 5) /* U+FFF0-U+FFFD */ /* Bit 70 Tibetan */ # define TT_UCR_TIBETAN (1L << 6) /* U+0F00-U+0FFF */ /* Bit 71 Syriac */ # define TT_UCR_SYRIAC (1L << 7) /* U+0700-U+074F */ /* Bit 72 Thaana */ # define TT_UCR_THAANA (1L << 8) /* U+0780-U+07BF */ /* Bit 73 Sinhala */ # define TT_UCR_SINHALA (1L << 9) /* U+0D80-U+0DFF */ /* Bit 74 Myanmar */ # define TT_UCR_MYANMAR (1L << 10) /* U+1000-U+109F */ /* Bit 75 Ethiopic */ /* Ethiopic Supplement */ /* Ethiopic Extended */ # define TT_UCR_ETHIOPIC (1L << 11) /* U+1200-U+137F */ /* U+1380-U+139F */ /* U+2D80-U+2DDF */ /* Bit 76 Cherokee */ # define TT_UCR_CHEROKEE (1L << 12) /* U+13A0-U+13FF */ /* Bit 77 Unified Canadian Aboriginal Syllabics */ # define TT_UCR_CANADIAN_ABORIGINAL_SYLLABICS (1L << 13) /* U+1400-U+167F */ /* Bit 78 Ogham */ # define TT_UCR_OGHAM (1L << 14) /* U+1680-U+169F */ /* Bit 79 Runic */ # define TT_UCR_RUNIC (1L << 15) /* U+16A0-U+16FF */ /* Bit 80 Khmer */ /* Khmer Symbols */ # define TT_UCR_KHMER (1L << 16) /* U+1780-U+17FF */ /* U+19E0-U+19FF */ /* Bit 81 Mongolian */ # define TT_UCR_MONGOLIAN (1L << 17) /* U+1800-U+18AF */ /* Bit 82 Braille Patterns */ # define TT_UCR_BRAILLE (1L << 18) /* U+2800-U+28FF */ /* Bit 83 Yi Syllables */ /* Yi Radicals */ # define TT_UCR_YI (1L << 19) /* U+A000-U+A48F */ /* U+A490-U+A4CF */ /* Bit 84 Tagalog */ /* Hanunoo */ /* Buhid */ /* Tagbanwa */ # define TT_UCR_PHILIPPINE (1L << 20) /* U+1700-U+171F */ /* U+1720-U+173F */ /* U+1740-U+175F */ /* U+1760-U+177F */ /* Bit 85 Old Italic */ # define TT_UCR_OLD_ITALIC (1L << 21) /*U+10300-U+1032F*/ /* Bit 86 Gothic */ # define TT_UCR_GOTHIC (1L << 22) /*U+10330-U+1034F*/ /* Bit 87 Deseret */ # define TT_UCR_DESERET (1L << 23) /*U+10400-U+1044F*/ /* Bit 88 Byzantine Musical Symbols */ /* Musical Symbols */ /* Ancient Greek Musical Notation */ # define TT_UCR_MUSICAL_SYMBOLS (1L << 24) /*U+1D000-U+1D0FF*/ /*U+1D100-U+1D1FF*/ /*U+1D200-U+1D24F*/ /* Bit 89 Mathematical Alphanumeric Symbols */ # define TT_UCR_MATH_ALPHANUMERIC_SYMBOLS (1L << 25) /*U+1D400-U+1D7FF*/ /* Bit 90 Private Use (plane 15) */ /* Private Use (plane 16) */ # define TT_UCR_PRIVATE_USE_SUPPLEMENTARY (1L << 26) /*U+F0000-U+FFFFD*/ /*U+100000-U+10FFFD*/ /* Bit 91 Variation Selectors */ /* Variation Selectors Supplement */ # define TT_UCR_VARIATION_SELECTORS (1L << 27) /* U+FE00-U+FE0F */ /*U+E0100-U+E01EF*/ /* Bit 92 Tags */ # define TT_UCR_TAGS (1L << 28) /*U+E0000-U+E007F*/ /* Bit 93 Limbu */ # define TT_UCR_LIMBU (1L << 29) /* U+1900-U+194F */ /* Bit 94 Tai Le */ # define TT_UCR_TAI_LE (1L << 30) /* U+1950-U+197F */ /* Bit 95 New Tai Lue */ # define TT_UCR_NEW_TAI_LUE (1L << 31) /* U+1980-U+19DF */ /* ulUnicodeRange4 */ /* --------------- */ /* Bit 96 Buginese */ # define TT_UCR_BUGINESE (1L << 0) /* U+1A00-U+1A1F */ /* Bit 97 Glagolitic */ # define TT_UCR_GLAGOLITIC (1L << 1) /* U+2C00-U+2C5F */ /* Bit 98 Tifinagh */ # define TT_UCR_TIFINAGH (1L << 2) /* U+2D30-U+2D7F */ /* Bit 99 Yijing Hexagram Symbols */ # define TT_UCR_YIJING (1L << 3) /* U+4DC0-U+4DFF */ /* Bit 100 Syloti Nagri */ # define TT_UCR_SYLOTI_NAGRI (1L << 4) /* U+A800-U+A82F */ /* Bit 101 Linear B Syllabary */ /* Linear B Ideograms */ /* Aegean Numbers */ # define TT_UCR_LINEAR_B (1L << 5) /*U+10000-U+1007F*/ /*U+10080-U+100FF*/ /*U+10100-U+1013F*/ /* Bit 102 Ancient Greek Numbers */ # define TT_UCR_ANCIENT_GREEK_NUMBERS (1L << 6) /*U+10140-U+1018F*/ /* Bit 103 Ugaritic */ # define TT_UCR_UGARITIC (1L << 7) /*U+10380-U+1039F*/ /* Bit 104 Old Persian */ # define TT_UCR_OLD_PERSIAN (1L << 8) /*U+103A0-U+103DF*/ /* Bit 105 Shavian */ # define TT_UCR_SHAVIAN (1L << 9) /*U+10450-U+1047F*/ /* Bit 106 Osmanya */ # define TT_UCR_OSMANYA (1L << 10) /*U+10480-U+104AF*/ /* Bit 107 Cypriot Syllabary */ # define TT_UCR_CYPRIOT_SYLLABARY (1L << 11) /*U+10800-U+1083F*/ /* Bit 108 Kharoshthi */ # define TT_UCR_KHAROSHTHI (1L << 12) /*U+10A00-U+10A5F*/ /* Bit 109 Tai Xuan Jing Symbols */ # define TT_UCR_TAI_XUAN_JING (1L << 13) /*U+1D300-U+1D35F*/ /* Bit 110 Cuneiform */ /* Cuneiform Numbers and Punctuation */ # define TT_UCR_CUNEIFORM (1L << 14) /*U+12000-U+123FF*/ /*U+12400-U+1247F*/ /* Bit 111 Counting Rod Numerals */ # define TT_UCR_COUNTING_ROD_NUMERALS (1L << 15) /*U+1D360-U+1D37F*/ /* Bit 112 Sundanese */ # define TT_UCR_SUNDANESE (1L << 16) /* U+1B80-U+1BBF */ /* Bit 113 Lepcha */ # define TT_UCR_LEPCHA (1L << 17) /* U+1C00-U+1C4F */ /* Bit 114 Ol Chiki */ # define TT_UCR_OL_CHIKI (1L << 18) /* U+1C50-U+1C7F */ /* Bit 115 Saurashtra */ # define TT_UCR_SAURASHTRA (1L << 19) /* U+A880-U+A8DF */ /* Bit 116 Kayah Li */ # define TT_UCR_KAYAH_LI (1L << 20) /* U+A900-U+A92F */ /* Bit 117 Rejang */ # define TT_UCR_REJANG (1L << 21) /* U+A930-U+A95F */ /* Bit 118 Cham */ # define TT_UCR_CHAM (1L << 22) /* U+AA00-U+AA5F */ /* Bit 119 Ancient Symbols */ # define TT_UCR_ANCIENT_SYMBOLS (1L << 23) /*U+10190-U+101CF*/ /* Bit 120 Phaistos Disc */ # define TT_UCR_PHAISTOS_DISC (1L << 24) /*U+101D0-U+101FF*/ /* Bit 121 Carian */ /* Lycian */ /* Lydian */ # define TT_UCR_OLD_ANATOLIAN (1L << 25) /*U+102A0-U+102DF*/ /*U+10280-U+1029F*/ /*U+10920-U+1093F*/ /* Bit 122 Domino Tiles */ /* Mahjong Tiles */ # define TT_UCR_GAME_TILES (1L << 26) /*U+1F030-U+1F09F*/ /*U+1F000-U+1F02F*/ /* Bit 123-127 Reserved for process-internal usage */ Possible bit mask values for the ulUnicodeRangeX fields in an SFNT \u2018OS/2\u2019 table.","title":"TrueType Tables"},{"location":"ft2-truetype_tables.html#truetype-tables","text":"","title":"TrueType Tables"},{"location":"ft2-truetype_tables.html#synopsis","text":"This section contains definitions of some basic tables specific to TrueType and OpenType as well as some routines used to access and process them.","title":"Synopsis"},{"location":"ft2-truetype_tables.html#tt_header","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_Header_ { FT_Fixed Table_Version; FT_Fixed Font_Revision; FT_Long CheckSum_Adjust; FT_Long Magic_Number; FT_UShort Flags; FT_UShort Units_Per_EM; FT_ULong Created [2]; FT_ULong Modified[2]; FT_Short xMin; FT_Short yMin; FT_Short xMax; FT_Short yMax; FT_UShort Mac_Style; FT_UShort Lowest_Rec_PPEM; FT_Short Font_Direction; FT_Short Index_To_Loc_Format; FT_Short Glyph_Data_Format; } TT_Header ; A structure to model a TrueType font header table. All fields follow the OpenType specification. The 64-bit timestamps are stored in two-element arrays Created and Modified , first the upper then the lower 32 bits.","title":"TT_Header"},{"location":"ft2-truetype_tables.html#tt_horiheader","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_HoriHeader_ { FT_Fixed Version; FT_Short Ascender; FT_Short Descender; FT_Short Line_Gap; FT_UShort advance_Width_Max; /* advance width maximum */ FT_Short min_Left_Side_Bearing; /* minimum left-sb */ FT_Short min_Right_Side_Bearing; /* minimum right-sb */ FT_Short xMax_Extent; /* xmax extents */ FT_Short caret_Slope_Rise; FT_Short caret_Slope_Run; FT_Short caret_Offset; FT_Short Reserved[4]; FT_Short metric_Data_Format; FT_UShort number_Of_HMetrics; /* The following fields are not defined by the OpenType specification */ /* but they are used to connect the metrics header to the relevant */ /* 'hmtx' table. */ void * long_metrics; void * short_metrics; } TT_HoriHeader ; A structure to model a TrueType horizontal header, the \u2018hhea\u2019 table, as well as the corresponding horizontal metrics table, \u2018hmtx\u2019.","title":"TT_HoriHeader"},{"location":"ft2-truetype_tables.html#tt_vertheader","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_VertHeader_ { FT_Fixed Version; FT_Short Ascender; FT_Short Descender; FT_Short Line_Gap; FT_UShort advance_Height_Max; /* advance height maximum */ FT_Short min_Top_Side_Bearing; /* minimum top-sb */ FT_Short min_Bottom_Side_Bearing; /* minimum bottom-sb */ FT_Short yMax_Extent; /* ymax extents */ FT_Short caret_Slope_Rise; FT_Short caret_Slope_Run; FT_Short caret_Offset; FT_Short Reserved[4]; FT_Short metric_Data_Format; FT_UShort number_Of_VMetrics; /* The following fields are not defined by the OpenType specification */ /* but they are used to connect the metrics header to the relevant */ /* 'vmtx' table. */ void * long_metrics; void * short_metrics; } TT_VertHeader ; A structure used to model a TrueType vertical header, the \u2018vhea\u2019 table, as well as the corresponding vertical metrics table, \u2018vmtx\u2019.","title":"TT_VertHeader"},{"location":"ft2-truetype_tables.html#tt_os2","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_OS2_ { FT_UShort version; /* 0x0001 - more or 0xFFFF */ FT_Short xAvgCharWidth; FT_UShort usWeightClass; FT_UShort usWidthClass; FT_UShort fsType; FT_Short ySubscriptXSize; FT_Short ySubscriptYSize; FT_Short ySubscriptXOffset; FT_Short ySubscriptYOffset; FT_Short ySuperscriptXSize; FT_Short ySuperscriptYSize; FT_Short ySuperscriptXOffset; FT_Short ySuperscriptYOffset; FT_Short yStrikeoutSize; FT_Short yStrikeoutPosition; FT_Short sFamilyClass; FT_Byte panose[10]; FT_ULong ulUnicodeRange1; /* Bits 0-31 */ FT_ULong ulUnicodeRange2; /* Bits 32-63 */ FT_ULong ulUnicodeRange3; /* Bits 64-95 */ FT_ULong ulUnicodeRange4; /* Bits 96-127 */ FT_Char achVendID[4]; FT_UShort fsSelection; FT_UShort usFirstCharIndex; FT_UShort usLastCharIndex; FT_Short sTypoAscender; FT_Short sTypoDescender; FT_Short sTypoLineGap; FT_UShort usWinAscent; FT_UShort usWinDescent; /* only version 1 and higher: */ FT_ULong ulCodePageRange1; /* Bits 0-31 */ FT_ULong ulCodePageRange2; /* Bits 32-63 */ /* only version 2 and higher: */ FT_Short sxHeight; FT_Short sCapHeight; FT_UShort usDefaultChar; FT_UShort usBreakChar; FT_UShort usMaxContext; /* only version 5 and higher: */ FT_UShort usLowerOpticalPointSize; /* in twips (1/20 points) */ FT_UShort usUpperOpticalPointSize; /* in twips (1/20 points) */ } TT_OS2 ; A structure to model a TrueType \u2018OS/2\u2019 table. All fields comply to the OpenType specification. Note that we now support old Mac fonts that do not include an \u2018OS/2\u2019 table. In this case, the version field is always set to 0xFFFF.","title":"TT_OS2"},{"location":"ft2-truetype_tables.html#tt_postscript","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_Postscript_ { FT_Fixed FormatType; FT_Fixed italicAngle; FT_Short underlinePosition; FT_Short underlineThickness; FT_ULong isFixedPitch; FT_ULong minMemType42; FT_ULong maxMemType42; FT_ULong minMemType1; FT_ULong maxMemType1; /* Glyph names follow in the 'post' table, but we don't */ /* load them by default. */ } TT_Postscript ; A structure to model a TrueType \u2018post\u2019 table. All fields comply to the OpenType specification. This structure does not reference a font's PostScript glyph names; use FT_Get_Glyph_Name to retrieve them.","title":"TT_Postscript"},{"location":"ft2-truetype_tables.html#tt_pclt","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_PCLT_ { FT_Fixed Version; FT_ULong FontNumber; FT_UShort Pitch; FT_UShort xHeight; FT_UShort Style; FT_UShort TypeFamily; FT_UShort CapHeight; FT_UShort SymbolSet; FT_Char TypeFace[16]; FT_Char CharacterComplement[8]; FT_Char FileName[6]; FT_Char StrokeWeight; FT_Char WidthType; FT_Byte SerifStyle; FT_Byte Reserved; } TT_PCLT ; A structure to model a TrueType \u2018PCLT\u2019 table. All fields comply to the OpenType specification.","title":"TT_PCLT"},{"location":"ft2-truetype_tables.html#tt_maxprofile","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef struct TT_MaxProfile_ { FT_Fixed version; FT_UShort numGlyphs; FT_UShort maxPoints; FT_UShort maxContours; FT_UShort maxCompositePoints; FT_UShort maxCompositeContours; FT_UShort maxZones; FT_UShort maxTwilightPoints; FT_UShort maxStorage; FT_UShort maxFunctionDefs; FT_UShort maxInstructionDefs; FT_UShort maxStackElements; FT_UShort maxSizeOfInstructions; FT_UShort maxComponentElements; FT_UShort maxComponentDepth; } TT_MaxProfile ; The maximum profile (\u2018maxp\u2019) table contains many max values, which can be used to pre-allocate arrays for speeding up glyph loading and hinting.","title":"TT_MaxProfile"},{"location":"ft2-truetype_tables.html#ft_sfnt_tag","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). typedef enum FT_Sfnt_Tag_ { FT_SFNT_HEAD , FT_SFNT_MAXP , FT_SFNT_OS2 , FT_SFNT_HHEA , FT_SFNT_VHEA , FT_SFNT_POST , FT_SFNT_PCLT , FT_SFNT_MAX } FT_Sfnt_Tag ; /* these constants are deprecated; use the corresponding ` FT_Sfnt_Tag ` */ /* values instead */ # define ft_sfnt_head FT_SFNT_HEAD # define ft_sfnt_maxp FT_SFNT_MAXP # define ft_sfnt_os2 FT_SFNT_OS2 # define ft_sfnt_hhea FT_SFNT_HHEA # define ft_sfnt_vhea FT_SFNT_VHEA # define ft_sfnt_post FT_SFNT_POST # define ft_sfnt_pclt FT_SFNT_PCLT An enumeration to specify indices of SFNT tables loaded and parsed by FreeType during initialization of an SFNT font. Used in the FT_Get_Sfnt_Table API function.","title":"FT_Sfnt_Tag"},{"location":"ft2-truetype_tables.html#ft_get_sfnt_table","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( void * ) FT_Get_Sfnt_Table ( FT_Face face, FT_Sfnt_Tag tag ); Return a pointer to a given SFNT table stored within a face.","title":"FT_Get_Sfnt_Table"},{"location":"ft2-truetype_tables.html#ft_load_sfnt_table","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( FT_Error ) FT_Load_Sfnt_Table ( FT_Face face, FT_ULong tag, FT_Long offset, FT_Byte * buffer, FT_ULong * length ); Load any SFNT font table into client memory.","title":"FT_Load_Sfnt_Table"},{"location":"ft2-truetype_tables.html#ft_sfnt_table_info","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( FT_Error ) FT_Sfnt_Table_Info ( FT_Face face, FT_UInt table_index, FT_ULong *tag, FT_ULong *length ); Return information on an SFNT table.","title":"FT_Sfnt_Table_Info"},{"location":"ft2-truetype_tables.html#ft_get_cmap_language_id","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( FT_ULong ) FT_Get_CMap_Language_ID ( FT_CharMap charmap ); Return cmap language ID as specified in the OpenType standard. Definitions of language ID values are in file FT_TRUETYPE_IDS_H .","title":"FT_Get_CMap_Language_ID"},{"location":"ft2-truetype_tables.html#ft_get_cmap_format","text":"Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h). FT_EXPORT( FT_Long ) FT_Get_CMap_Format ( FT_CharMap charmap ); Return the format of an SFNT \u2018cmap\u2019 table.","title":"FT_Get_CMap_Format"},{"location":"ft2-truetype_tables.html#ft_param_tag_unpatented_hinting","text":"# define FT_PARAM_TAG_UNPATENTED_HINTING \\ FT_MAKE_TAG ( 'u', 'n', 'p', 'a' ) Deprecated, no effect. Previously: A constant used as the tag of an FT_Parameter structure to indicate that unpatented methods only should be used by the TrueType bytecode interpreter for a typeface opened by FT_Open_Face .","title":"FT_PARAM_TAG_UNPATENTED_HINTING"},{"location":"ft2-truetype_tables.html#tt_platform_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_PLATFORM_APPLE_UNICODE 0 # define TT_PLATFORM_MACINTOSH 1 # define TT_PLATFORM_ISO 2 /* deprecated */ # define TT_PLATFORM_MICROSOFT 3 # define TT_PLATFORM_CUSTOM 4 # define TT_PLATFORM_ADOBE 7 /* artificial */ A list of valid values for the platform_id identifier code in FT_CharMapRec and FT_SfntName structures.","title":"TT_PLATFORM_XXX"},{"location":"ft2-truetype_tables.html#tt_apple_id_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_APPLE_ID_DEFAULT 0 /* Unicode 1.0 */ # define TT_APPLE_ID_UNICODE_1_1 1 /* specify Hangul at U+34xx */ # define TT_APPLE_ID_ISO_10646 2 /* deprecated */ # define TT_APPLE_ID_UNICODE_2_0 3 /* or later */ # define TT_APPLE_ID_UNICODE_32 4 /* 2.0 or later, full repertoire */ # define TT_APPLE_ID_VARIANT_SELECTOR 5 /* variation selector data */ # define TT_APPLE_ID_FULL_UNICODE 6 /* used with type 13 cmaps */ A list of valid values for the encoding_id for TT_PLATFORM_APPLE_UNICODE charmaps and name entries.","title":"TT_APPLE_ID_XXX"},{"location":"ft2-truetype_tables.html#tt_mac_id_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_MAC_ID_ROMAN 0 # define TT_MAC_ID_JAPANESE 1 # define TT_MAC_ID_TRADITIONAL_CHINESE 2 # define TT_MAC_ID_KOREAN 3 # define TT_MAC_ID_ARABIC 4 # define TT_MAC_ID_HEBREW 5 # define TT_MAC_ID_GREEK 6 # define TT_MAC_ID_RUSSIAN 7 # define TT_MAC_ID_RSYMBOL 8 # define TT_MAC_ID_DEVANAGARI 9 # define TT_MAC_ID_GURMUKHI 10 # define TT_MAC_ID_GUJARATI 11 # define TT_MAC_ID_ORIYA 12 # define TT_MAC_ID_BENGALI 13 # define TT_MAC_ID_TAMIL 14 # define TT_MAC_ID_TELUGU 15 # define TT_MAC_ID_KANNADA 16 # define TT_MAC_ID_MALAYALAM 17 # define TT_MAC_ID_SINHALESE 18 # define TT_MAC_ID_BURMESE 19 # define TT_MAC_ID_KHMER 20 # define TT_MAC_ID_THAI 21 # define TT_MAC_ID_LAOTIAN 22 # define TT_MAC_ID_GEORGIAN 23 # define TT_MAC_ID_ARMENIAN 24 # define TT_MAC_ID_MALDIVIAN 25 # define TT_MAC_ID_SIMPLIFIED_CHINESE 25 # define TT_MAC_ID_TIBETAN 26 # define TT_MAC_ID_MONGOLIAN 27 # define TT_MAC_ID_GEEZ 28 # define TT_MAC_ID_SLAVIC 29 # define TT_MAC_ID_VIETNAMESE 30 # define TT_MAC_ID_SINDHI 31 # define TT_MAC_ID_UNINTERP 32 A list of valid values for the encoding_id for TT_PLATFORM_MACINTOSH charmaps and name entries.","title":"TT_MAC_ID_XXX"},{"location":"ft2-truetype_tables.html#tt_iso_id_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_ISO_ID_7BIT_ASCII 0 # define TT_ISO_ID_10646 1 # define TT_ISO_ID_8859_1 2 A list of valid values for the encoding_id for TT_PLATFORM_ISO charmaps and name entries. Their use is now deprecated.","title":"TT_ISO_ID_XXX"},{"location":"ft2-truetype_tables.html#tt_ms_id_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_MS_ID_SYMBOL_CS 0 # define TT_MS_ID_UNICODE_CS 1 # define TT_MS_ID_SJIS 2 # define TT_MS_ID_PRC 3 # define TT_MS_ID_BIG_5 4 # define TT_MS_ID_WANSUNG 5 # define TT_MS_ID_JOHAB 6 # define TT_MS_ID_UCS_4 10 /* this value is deprecated */ # define TT_MS_ID_GB2312 TT_MS_ID_PRC A list of valid values for the encoding_id for TT_PLATFORM_MICROSOFT charmaps and name entries.","title":"TT_MS_ID_XXX"},{"location":"ft2-truetype_tables.html#tt_adobe_id_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_ADOBE_ID_STANDARD 0 # define TT_ADOBE_ID_EXPERT 1 # define TT_ADOBE_ID_CUSTOM 2 # define TT_ADOBE_ID_LATIN_1 3 A list of valid values for the encoding_id for TT_PLATFORM_ADOBE charmaps. This is a FreeType-specific extension!","title":"TT_ADOBE_ID_XXX"},{"location":"ft2-truetype_tables.html#tt_mac_langid_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_MAC_LANGID_ENGLISH 0 # define TT_MAC_LANGID_FRENCH 1 # define TT_MAC_LANGID_GERMAN 2 # define TT_MAC_LANGID_ITALIAN 3 # define TT_MAC_LANGID_DUTCH 4 # define TT_MAC_LANGID_SWEDISH 5 # define TT_MAC_LANGID_SPANISH 6 # define TT_MAC_LANGID_DANISH 7 # define TT_MAC_LANGID_PORTUGUESE 8 # define TT_MAC_LANGID_NORWEGIAN 9 # define TT_MAC_LANGID_HEBREW 10 # define TT_MAC_LANGID_JAPANESE 11 # define TT_MAC_LANGID_ARABIC 12 # define TT_MAC_LANGID_FINNISH 13 # define TT_MAC_LANGID_GREEK 14 # define TT_MAC_LANGID_ICELANDIC 15 # define TT_MAC_LANGID_MALTESE 16 # define TT_MAC_LANGID_TURKISH 17 # define TT_MAC_LANGID_CROATIAN 18 # define TT_MAC_LANGID_CHINESE_TRADITIONAL 19 # define TT_MAC_LANGID_URDU 20 # define TT_MAC_LANGID_HINDI 21 # define TT_MAC_LANGID_THAI 22 # define TT_MAC_LANGID_KOREAN 23 # define TT_MAC_LANGID_LITHUANIAN 24 # define TT_MAC_LANGID_POLISH 25 # define TT_MAC_LANGID_HUNGARIAN 26 # define TT_MAC_LANGID_ESTONIAN 27 # define TT_MAC_LANGID_LETTISH 28 # define TT_MAC_LANGID_SAAMISK 29 # define TT_MAC_LANGID_FAEROESE 30 # define TT_MAC_LANGID_FARSI 31 # define TT_MAC_LANGID_RUSSIAN 32 # define TT_MAC_LANGID_CHINESE_SIMPLIFIED 33 # define TT_MAC_LANGID_FLEMISH 34 # define TT_MAC_LANGID_IRISH 35 # define TT_MAC_LANGID_ALBANIAN 36 # define TT_MAC_LANGID_ROMANIAN 37 # define TT_MAC_LANGID_CZECH 38 # define TT_MAC_LANGID_SLOVAK 39 # define TT_MAC_LANGID_SLOVENIAN 40 # define TT_MAC_LANGID_YIDDISH 41 # define TT_MAC_LANGID_SERBIAN 42 # define TT_MAC_LANGID_MACEDONIAN 43 # define TT_MAC_LANGID_BULGARIAN 44 # define TT_MAC_LANGID_UKRAINIAN 45 # define TT_MAC_LANGID_BYELORUSSIAN 46 # define TT_MAC_LANGID_UZBEK 47 # define TT_MAC_LANGID_KAZAKH 48 # define TT_MAC_LANGID_AZERBAIJANI 49 # define TT_MAC_LANGID_AZERBAIJANI_CYRILLIC_SCRIPT 49 # define TT_MAC_LANGID_AZERBAIJANI_ARABIC_SCRIPT 50 # define TT_MAC_LANGID_ARMENIAN 51 # define TT_MAC_LANGID_GEORGIAN 52 # define TT_MAC_LANGID_MOLDAVIAN 53 # define TT_MAC_LANGID_KIRGHIZ 54 # define TT_MAC_LANGID_TAJIKI 55 # define TT_MAC_LANGID_TURKMEN 56 # define TT_MAC_LANGID_MONGOLIAN 57 # define TT_MAC_LANGID_MONGOLIAN_MONGOLIAN_SCRIPT 57 # define TT_MAC_LANGID_MONGOLIAN_CYRILLIC_SCRIPT 58 # define TT_MAC_LANGID_PASHTO 59 # define TT_MAC_LANGID_KURDISH 60 # define TT_MAC_LANGID_KASHMIRI 61 # define TT_MAC_LANGID_SINDHI 62 # define TT_MAC_LANGID_TIBETAN 63 # define TT_MAC_LANGID_NEPALI 64 # define TT_MAC_LANGID_SANSKRIT 65 # define TT_MAC_LANGID_MARATHI 66 # define TT_MAC_LANGID_BENGALI 67 # define TT_MAC_LANGID_ASSAMESE 68 # define TT_MAC_LANGID_GUJARATI 69 # define TT_MAC_LANGID_PUNJABI 70 # define TT_MAC_LANGID_ORIYA 71 # define TT_MAC_LANGID_MALAYALAM 72 # define TT_MAC_LANGID_KANNADA 73 # define TT_MAC_LANGID_TAMIL 74 # define TT_MAC_LANGID_TELUGU 75 # define TT_MAC_LANGID_SINHALESE 76 # define TT_MAC_LANGID_BURMESE 77 # define TT_MAC_LANGID_KHMER 78 # define TT_MAC_LANGID_LAO 79 # define TT_MAC_LANGID_VIETNAMESE 80 # define TT_MAC_LANGID_INDONESIAN 81 # define TT_MAC_LANGID_TAGALOG 82 # define TT_MAC_LANGID_MALAY_ROMAN_SCRIPT 83 # define TT_MAC_LANGID_MALAY_ARABIC_SCRIPT 84 # define TT_MAC_LANGID_AMHARIC 85 # define TT_MAC_LANGID_TIGRINYA 86 # define TT_MAC_LANGID_GALLA 87 # define TT_MAC_LANGID_SOMALI 88 # define TT_MAC_LANGID_SWAHILI 89 # define TT_MAC_LANGID_RUANDA 90 # define TT_MAC_LANGID_RUNDI 91 # define TT_MAC_LANGID_CHEWA 92 # define TT_MAC_LANGID_MALAGASY 93 # define TT_MAC_LANGID_ESPERANTO 94 # define TT_MAC_LANGID_WELSH 128 # define TT_MAC_LANGID_BASQUE 129 # define TT_MAC_LANGID_CATALAN 130 # define TT_MAC_LANGID_LATIN 131 # define TT_MAC_LANGID_QUECHUA 132 # define TT_MAC_LANGID_GUARANI 133 # define TT_MAC_LANGID_AYMARA 134 # define TT_MAC_LANGID_TATAR 135 # define TT_MAC_LANGID_UIGHUR 136 # define TT_MAC_LANGID_DZONGKHA 137 # define TT_MAC_LANGID_JAVANESE 138 # define TT_MAC_LANGID_SUNDANESE 139 /* The following codes are new as of 2000-03-10 */ # define TT_MAC_LANGID_GALICIAN 140 # define TT_MAC_LANGID_AFRIKAANS 141 # define TT_MAC_LANGID_BRETON 142 # define TT_MAC_LANGID_INUKTITUT 143 # define TT_MAC_LANGID_SCOTTISH_GAELIC 144 # define TT_MAC_LANGID_MANX_GAELIC 145 # define TT_MAC_LANGID_IRISH_GAELIC 146 # define TT_MAC_LANGID_TONGAN 147 # define TT_MAC_LANGID_GREEK_POLYTONIC 148 # define TT_MAC_LANGID_GREELANDIC 149 # define TT_MAC_LANGID_AZERBAIJANI_ROMAN_SCRIPT 150 Possible values of the language identifier field in the name records of the SFNT \u2018name\u2019 table if the \u2018platform\u2019 identifier code is TT_PLATFORM_MACINTOSH . These values are also used as return values for function FT_Get_CMap_Language_ID . The canonical source for Apple's IDs is https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6name.html","title":"TT_MAC_LANGID_XXX"},{"location":"ft2-truetype_tables.html#tt_ms_langid_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_MS_LANGID_ARABIC_SAUDI_ARABIA 0x0401 # define TT_MS_LANGID_ARABIC_IRAQ 0x0801 # define TT_MS_LANGID_ARABIC_EGYPT 0x0C01 # define TT_MS_LANGID_ARABIC_LIBYA 0x1001 # define TT_MS_LANGID_ARABIC_ALGERIA 0x1401 # define TT_MS_LANGID_ARABIC_MOROCCO 0x1801 # define TT_MS_LANGID_ARABIC_TUNISIA 0x1C01 # define TT_MS_LANGID_ARABIC_OMAN 0x2001 # define TT_MS_LANGID_ARABIC_YEMEN 0x2401 # define TT_MS_LANGID_ARABIC_SYRIA 0x2801 # define TT_MS_LANGID_ARABIC_JORDAN 0x2C01 # define TT_MS_LANGID_ARABIC_LEBANON 0x3001 # define TT_MS_LANGID_ARABIC_KUWAIT 0x3401 # define TT_MS_LANGID_ARABIC_UAE 0x3801 # define TT_MS_LANGID_ARABIC_BAHRAIN 0x3C01 # define TT_MS_LANGID_ARABIC_QATAR 0x4001 # define TT_MS_LANGID_BULGARIAN_BULGARIA 0x0402 # define TT_MS_LANGID_CATALAN_CATALAN 0x0403 # define TT_MS_LANGID_CHINESE_TAIWAN 0x0404 # define TT_MS_LANGID_CHINESE_PRC 0x0804 # define TT_MS_LANGID_CHINESE_HONG_KONG 0x0C04 # define TT_MS_LANGID_CHINESE_SINGAPORE 0x1004 # define TT_MS_LANGID_CHINESE_MACAO 0x1404 # define TT_MS_LANGID_CZECH_CZECH_REPUBLIC 0x0405 # define TT_MS_LANGID_DANISH_DENMARK 0x0406 # define TT_MS_LANGID_GERMAN_GERMANY 0x0407 # define TT_MS_LANGID_GERMAN_SWITZERLAND 0x0807 # define TT_MS_LANGID_GERMAN_AUSTRIA 0x0C07 # define TT_MS_LANGID_GERMAN_LUXEMBOURG 0x1007 # define TT_MS_LANGID_GERMAN_LIECHTENSTEIN 0x1407 # define TT_MS_LANGID_GREEK_GREECE 0x0408 # define TT_MS_LANGID_ENGLISH_UNITED_STATES 0x0409 # define TT_MS_LANGID_ENGLISH_UNITED_KINGDOM 0x0809 # define TT_MS_LANGID_ENGLISH_AUSTRALIA 0x0C09 # define TT_MS_LANGID_ENGLISH_CANADA 0x1009 # define TT_MS_LANGID_ENGLISH_NEW_ZEALAND 0x1409 # define TT_MS_LANGID_ENGLISH_IRELAND 0x1809 # define TT_MS_LANGID_ENGLISH_SOUTH_AFRICA 0x1C09 # define TT_MS_LANGID_ENGLISH_JAMAICA 0x2009 # define TT_MS_LANGID_ENGLISH_CARIBBEAN 0x2409 # define TT_MS_LANGID_ENGLISH_BELIZE 0x2809 # define TT_MS_LANGID_ENGLISH_TRINIDAD 0x2C09 # define TT_MS_LANGID_ENGLISH_ZIMBABWE 0x3009 # define TT_MS_LANGID_ENGLISH_PHILIPPINES 0x3409 # define TT_MS_LANGID_ENGLISH_INDIA 0x4009 # define TT_MS_LANGID_ENGLISH_MALAYSIA 0x4409 # define TT_MS_LANGID_ENGLISH_SINGAPORE 0x4809 # define TT_MS_LANGID_SPANISH_SPAIN_TRADITIONAL_SORT 0x040A # define TT_MS_LANGID_SPANISH_MEXICO 0x080A # define TT_MS_LANGID_SPANISH_SPAIN_MODERN_SORT 0x0C0A # define TT_MS_LANGID_SPANISH_GUATEMALA 0x100A # define TT_MS_LANGID_SPANISH_COSTA_RICA 0x140A # define TT_MS_LANGID_SPANISH_PANAMA 0x180A # define TT_MS_LANGID_SPANISH_DOMINICAN_REPUBLIC 0x1C0A # define TT_MS_LANGID_SPANISH_VENEZUELA 0x200A # define TT_MS_LANGID_SPANISH_COLOMBIA 0x240A # define TT_MS_LANGID_SPANISH_PERU 0x280A # define TT_MS_LANGID_SPANISH_ARGENTINA 0x2C0A # define TT_MS_LANGID_SPANISH_ECUADOR 0x300A # define TT_MS_LANGID_SPANISH_CHILE 0x340A # define TT_MS_LANGID_SPANISH_URUGUAY 0x380A # define TT_MS_LANGID_SPANISH_PARAGUAY 0x3C0A # define TT_MS_LANGID_SPANISH_BOLIVIA 0x400A # define TT_MS_LANGID_SPANISH_EL_SALVADOR 0x440A # define TT_MS_LANGID_SPANISH_HONDURAS 0x480A # define TT_MS_LANGID_SPANISH_NICARAGUA 0x4C0A # define TT_MS_LANGID_SPANISH_PUERTO_RICO 0x500A # define TT_MS_LANGID_SPANISH_UNITED_STATES 0x540A # define TT_MS_LANGID_FINNISH_FINLAND 0x040B # define TT_MS_LANGID_FRENCH_FRANCE 0x040C # define TT_MS_LANGID_FRENCH_BELGIUM 0x080C # define TT_MS_LANGID_FRENCH_CANADA 0x0C0C # define TT_MS_LANGID_FRENCH_SWITZERLAND 0x100C # define TT_MS_LANGID_FRENCH_LUXEMBOURG 0x140C # define TT_MS_LANGID_FRENCH_MONACO 0x180C # define TT_MS_LANGID_HEBREW_ISRAEL 0x040D # define TT_MS_LANGID_HUNGARIAN_HUNGARY 0x040E # define TT_MS_LANGID_ICELANDIC_ICELAND 0x040F # define TT_MS_LANGID_ITALIAN_ITALY 0x0410 # define TT_MS_LANGID_ITALIAN_SWITZERLAND 0x0810 # define TT_MS_LANGID_JAPANESE_JAPAN 0x0411 # define TT_MS_LANGID_KOREAN_KOREA 0x0412 # define TT_MS_LANGID_DUTCH_NETHERLANDS 0x0413 # define TT_MS_LANGID_DUTCH_BELGIUM 0x0813 # define TT_MS_LANGID_NORWEGIAN_NORWAY_BOKMAL 0x0414 # define TT_MS_LANGID_NORWEGIAN_NORWAY_NYNORSK 0x0814 # define TT_MS_LANGID_POLISH_POLAND 0x0415 # define TT_MS_LANGID_PORTUGUESE_BRAZIL 0x0416 # define TT_MS_LANGID_PORTUGUESE_PORTUGAL 0x0816 # define TT_MS_LANGID_ROMANSH_SWITZERLAND 0x0417 # define TT_MS_LANGID_ROMANIAN_ROMANIA 0x0418 # define TT_MS_LANGID_RUSSIAN_RUSSIA 0x0419 # define TT_MS_LANGID_CROATIAN_CROATIA 0x041A # define TT_MS_LANGID_SERBIAN_SERBIA_LATIN 0x081A # define TT_MS_LANGID_SERBIAN_SERBIA_CYRILLIC 0x0C1A # define TT_MS_LANGID_CROATIAN_BOSNIA_HERZEGOVINA 0x101A # define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZEGOVINA 0x141A # define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_LATIN 0x181A # define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_CYRILLIC 0x1C1A # define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZ_CYRILLIC 0x201A # define TT_MS_LANGID_SLOVAK_SLOVAKIA 0x041B # define TT_MS_LANGID_ALBANIAN_ALBANIA 0x041C # define TT_MS_LANGID_SWEDISH_SWEDEN 0x041D # define TT_MS_LANGID_SWEDISH_FINLAND 0x081D # define TT_MS_LANGID_THAI_THAILAND 0x041E # define TT_MS_LANGID_TURKISH_TURKEY 0x041F # define TT_MS_LANGID_URDU_PAKISTAN 0x0420 # define TT_MS_LANGID_INDONESIAN_INDONESIA 0x0421 # define TT_MS_LANGID_UKRAINIAN_UKRAINE 0x0422 # define TT_MS_LANGID_BELARUSIAN_BELARUS 0x0423 # define TT_MS_LANGID_SLOVENIAN_SLOVENIA 0x0424 # define TT_MS_LANGID_ESTONIAN_ESTONIA 0x0425 # define TT_MS_LANGID_LATVIAN_LATVIA 0x0426 # define TT_MS_LANGID_LITHUANIAN_LITHUANIA 0x0427 # define TT_MS_LANGID_TAJIK_TAJIKISTAN 0x0428 # define TT_MS_LANGID_VIETNAMESE_VIET_NAM 0x042A # define TT_MS_LANGID_ARMENIAN_ARMENIA 0x042B # define TT_MS_LANGID_AZERI_AZERBAIJAN_LATIN 0x042C # define TT_MS_LANGID_AZERI_AZERBAIJAN_CYRILLIC 0x082C # define TT_MS_LANGID_BASQUE_BASQUE 0x042D # define TT_MS_LANGID_UPPER_SORBIAN_GERMANY 0x042E # define TT_MS_LANGID_LOWER_SORBIAN_GERMANY 0x082E # define TT_MS_LANGID_MACEDONIAN_MACEDONIA 0x042F # define TT_MS_LANGID_SETSWANA_SOUTH_AFRICA 0x0432 # define TT_MS_LANGID_ISIXHOSA_SOUTH_AFRICA 0x0434 # define TT_MS_LANGID_ISIZULU_SOUTH_AFRICA 0x0435 # define TT_MS_LANGID_AFRIKAANS_SOUTH_AFRICA 0x0436 # define TT_MS_LANGID_GEORGIAN_GEORGIA 0x0437 # define TT_MS_LANGID_FAEROESE_FAEROE_ISLANDS 0x0438 # define TT_MS_LANGID_HINDI_INDIA 0x0439 # define TT_MS_LANGID_MALTESE_MALTA 0x043A # define TT_MS_LANGID_SAMI_NORTHERN_NORWAY 0x043B # define TT_MS_LANGID_SAMI_NORTHERN_SWEDEN 0x083B # define TT_MS_LANGID_SAMI_NORTHERN_FINLAND 0x0C3B # define TT_MS_LANGID_SAMI_LULE_NORWAY 0x103B # define TT_MS_LANGID_SAMI_LULE_SWEDEN 0x143B # define TT_MS_LANGID_SAMI_SOUTHERN_NORWAY 0x183B # define TT_MS_LANGID_SAMI_SOUTHERN_SWEDEN 0x1C3B # define TT_MS_LANGID_SAMI_SKOLT_FINLAND 0x203B # define TT_MS_LANGID_SAMI_INARI_FINLAND 0x243B # define TT_MS_LANGID_IRISH_IRELAND 0x083C # define TT_MS_LANGID_MALAY_MALAYSIA 0x043E # define TT_MS_LANGID_MALAY_BRUNEI_DARUSSALAM 0x083E # define TT_MS_LANGID_KAZAKH_KAZAKHSTAN 0x043F # define TT_MS_LANGID_KYRGYZ_KYRGYZSTAN /* Cyrillic */ 0x0440 # define TT_MS_LANGID_KISWAHILI_KENYA 0x0441 # define TT_MS_LANGID_TURKMEN_TURKMENISTAN 0x0442 # define TT_MS_LANGID_UZBEK_UZBEKISTAN_LATIN 0x0443 # define TT_MS_LANGID_UZBEK_UZBEKISTAN_CYRILLIC 0x0843 # define TT_MS_LANGID_TATAR_RUSSIA 0x0444 # define TT_MS_LANGID_BENGALI_INDIA 0x0445 # define TT_MS_LANGID_BENGALI_BANGLADESH 0x0845 # define TT_MS_LANGID_PUNJABI_INDIA 0x0446 # define TT_MS_LANGID_GUJARATI_INDIA 0x0447 # define TT_MS_LANGID_ODIA_INDIA 0x0448 # define TT_MS_LANGID_TAMIL_INDIA 0x0449 # define TT_MS_LANGID_TELUGU_INDIA 0x044A # define TT_MS_LANGID_KANNADA_INDIA 0x044B # define TT_MS_LANGID_MALAYALAM_INDIA 0x044C # define TT_MS_LANGID_ASSAMESE_INDIA 0x044D # define TT_MS_LANGID_MARATHI_INDIA 0x044E # define TT_MS_LANGID_SANSKRIT_INDIA 0x044F # define TT_MS_LANGID_MONGOLIAN_MONGOLIA /* Cyrillic */ 0x0450 # define TT_MS_LANGID_MONGOLIAN_PRC 0x0850 # define TT_MS_LANGID_TIBETAN_PRC 0x0451 # define TT_MS_LANGID_WELSH_UNITED_KINGDOM 0x0452 # define TT_MS_LANGID_KHMER_CAMBODIA 0x0453 # define TT_MS_LANGID_LAO_LAOS 0x0454 # define TT_MS_LANGID_GALICIAN_GALICIAN 0x0456 # define TT_MS_LANGID_KONKANI_INDIA 0x0457 # define TT_MS_LANGID_SYRIAC_SYRIA 0x045A # define TT_MS_LANGID_SINHALA_SRI_LANKA 0x045B # define TT_MS_LANGID_INUKTITUT_CANADA 0x045D # define TT_MS_LANGID_INUKTITUT_CANADA_LATIN 0x085D # define TT_MS_LANGID_AMHARIC_ETHIOPIA 0x045E # define TT_MS_LANGID_TAMAZIGHT_ALGERIA 0x085F # define TT_MS_LANGID_NEPALI_NEPAL 0x0461 # define TT_MS_LANGID_FRISIAN_NETHERLANDS 0x0462 # define TT_MS_LANGID_PASHTO_AFGHANISTAN 0x0463 # define TT_MS_LANGID_FILIPINO_PHILIPPINES 0x0464 # define TT_MS_LANGID_DHIVEHI_MALDIVES 0x0465 # define TT_MS_LANGID_HAUSA_NIGERIA 0x0468 # define TT_MS_LANGID_YORUBA_NIGERIA 0x046A # define TT_MS_LANGID_QUECHUA_BOLIVIA 0x046B # define TT_MS_LANGID_QUECHUA_ECUADOR 0x086B # define TT_MS_LANGID_QUECHUA_PERU 0x0C6B # define TT_MS_LANGID_SESOTHO_SA_LEBOA_SOUTH_AFRICA 0x046C # define TT_MS_LANGID_BASHKIR_RUSSIA 0x046D # define TT_MS_LANGID_LUXEMBOURGISH_LUXEMBOURG 0x046E # define TT_MS_LANGID_GREENLANDIC_GREENLAND 0x046F # define TT_MS_LANGID_IGBO_NIGERIA 0x0470 # define TT_MS_LANGID_YI_PRC 0x0478 # define TT_MS_LANGID_MAPUDUNGUN_CHILE 0x047A # define TT_MS_LANGID_MOHAWK_MOHAWK 0x047C # define TT_MS_LANGID_BRETON_FRANCE 0x047E # define TT_MS_LANGID_UIGHUR_PRC 0x0480 # define TT_MS_LANGID_MAORI_NEW_ZEALAND 0x0481 # define TT_MS_LANGID_OCCITAN_FRANCE 0x0482 # define TT_MS_LANGID_CORSICAN_FRANCE 0x0483 # define TT_MS_LANGID_ALSATIAN_FRANCE 0x0484 # define TT_MS_LANGID_YAKUT_RUSSIA 0x0485 # define TT_MS_LANGID_KICHE_GUATEMALA 0x0486 # define TT_MS_LANGID_KINYARWANDA_RWANDA 0x0487 # define TT_MS_LANGID_WOLOF_SENEGAL 0x0488 # define TT_MS_LANGID_DARI_AFGHANISTAN 0x048C Possible values of the language identifier field in the name records of the SFNT \u2018name\u2019 table if the \u2018platform\u2019 identifier code is TT_PLATFORM_MICROSOFT . These values are also used as return values for function FT_Get_CMap_Language_ID . The canonical source for Microsoft's IDs is https://docs.microsoft.com/en-us/windows/desktop/Intl/language-identifier-constants-and-strings , however, we only provide macros for language identifiers present in the OpenType specification: Microsoft has abandoned the concept of LCIDs (language code identifiers), and format 1 of the \u2018name\u2019 table provides a better mechanism for languages not covered here. More legacy values not listed in the reference can be found in the FT_TRUETYPE_IDS_H header file.","title":"TT_MS_LANGID_XXX"},{"location":"ft2-truetype_tables.html#tt_name_id_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). # define TT_NAME_ID_COPYRIGHT 0 # define TT_NAME_ID_FONT_FAMILY 1 # define TT_NAME_ID_FONT_SUBFAMILY 2 # define TT_NAME_ID_UNIQUE_ID 3 # define TT_NAME_ID_FULL_NAME 4 # define TT_NAME_ID_VERSION_STRING 5 # define TT_NAME_ID_PS_NAME 6 # define TT_NAME_ID_TRADEMARK 7 /* the following values are from the OpenType spec */ # define TT_NAME_ID_MANUFACTURER 8 # define TT_NAME_ID_DESIGNER 9 # define TT_NAME_ID_DESCRIPTION 10 # define TT_NAME_ID_VENDOR_URL 11 # define TT_NAME_ID_DESIGNER_URL 12 # define TT_NAME_ID_LICENSE 13 # define TT_NAME_ID_LICENSE_URL 14 /* number 15 is reserved */ # define TT_NAME_ID_TYPOGRAPHIC_FAMILY 16 # define TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY 17 # define TT_NAME_ID_MAC_FULL_NAME 18 /* The following code is new as of 2000-01-21 */ # define TT_NAME_ID_SAMPLE_TEXT 19 /* This is new in OpenType 1.3 */ # define TT_NAME_ID_CID_FINDFONT_NAME 20 /* This is new in OpenType 1.5 */ # define TT_NAME_ID_WWS_FAMILY 21 # define TT_NAME_ID_WWS_SUBFAMILY 22 /* This is new in OpenType 1.7 */ # define TT_NAME_ID_LIGHT_BACKGROUND 23 # define TT_NAME_ID_DARK_BACKGROUND 24 /* This is new in OpenType 1.8 */ # define TT_NAME_ID_VARIATIONS_PREFIX 25 /* these two values are deprecated */ # define TT_NAME_ID_PREFERRED_FAMILY TT_NAME_ID_TYPOGRAPHIC_FAMILY # define TT_NAME_ID_PREFERRED_SUBFAMILY TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY Possible values of the \u2018name\u2019 identifier field in the name records of an SFNT \u2018name\u2019 table. These values are platform independent.","title":"TT_NAME_ID_XXX"},{"location":"ft2-truetype_tables.html#tt_ucr_xxx","text":"Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h). /* ulUnicodeRange1 */ /* --------------- */ /* Bit 0 Basic Latin */ # define TT_UCR_BASIC_LATIN (1L << 0) /* U+0020-U+007E */ /* Bit 1 C1 Controls and Latin-1 Supplement */ # define TT_UCR_LATIN1_SUPPLEMENT (1L << 1) /* U+0080-U+00FF */ /* Bit 2 Latin Extended-A */ # define TT_UCR_LATIN_EXTENDED_A (1L << 2) /* U+0100-U+017F */ /* Bit 3 Latin Extended-B */ # define TT_UCR_LATIN_EXTENDED_B (1L << 3) /* U+0180-U+024F */ /* Bit 4 IPA Extensions */ /* Phonetic Extensions */ /* Phonetic Extensions Supplement */ # define TT_UCR_IPA_EXTENSIONS (1L << 4) /* U+0250-U+02AF */ /* U+1D00-U+1D7F */ /* U+1D80-U+1DBF */ /* Bit 5 Spacing Modifier Letters */ /* Modifier Tone Letters */ # define TT_UCR_SPACING_MODIFIER (1L << 5) /* U+02B0-U+02FF */ /* U+A700-U+A71F */ /* Bit 6 Combining Diacritical Marks */ /* Combining Diacritical Marks Supplement */ # define TT_UCR_COMBINING_DIACRITICAL_MARKS (1L << 6) /* U+0300-U+036F */ /* U+1DC0-U+1DFF */ /* Bit 7 Greek and Coptic */ # define TT_UCR_GREEK (1L << 7) /* U+0370-U+03FF */ /* Bit 8 Coptic */ # define TT_UCR_COPTIC (1L << 8) /* U+2C80-U+2CFF */ /* Bit 9 Cyrillic */ /* Cyrillic Supplement */ /* Cyrillic Extended-A */ /* Cyrillic Extended-B */ # define TT_UCR_CYRILLIC (1L << 9) /* U+0400-U+04FF */ /* U+0500-U+052F */ /* U+2DE0-U+2DFF */ /* U+A640-U+A69F */ /* Bit 10 Armenian */ # define TT_UCR_ARMENIAN (1L << 10) /* U+0530-U+058F */ /* Bit 11 Hebrew */ # define TT_UCR_HEBREW (1L << 11) /* U+0590-U+05FF */ /* Bit 12 Vai */ # define TT_UCR_VAI (1L << 12) /* U+A500-U+A63F */ /* Bit 13 Arabic */ /* Arabic Supplement */ # define TT_UCR_ARABIC (1L << 13) /* U+0600-U+06FF */ /* U+0750-U+077F */ /* Bit 14 NKo */ # define TT_UCR_NKO (1L << 14) /* U+07C0-U+07FF */ /* Bit 15 Devanagari */ # define TT_UCR_DEVANAGARI (1L << 15) /* U+0900-U+097F */ /* Bit 16 Bengali */ # define TT_UCR_BENGALI (1L << 16) /* U+0980-U+09FF */ /* Bit 17 Gurmukhi */ # define TT_UCR_GURMUKHI (1L << 17) /* U+0A00-U+0A7F */ /* Bit 18 Gujarati */ # define TT_UCR_GUJARATI (1L << 18) /* U+0A80-U+0AFF */ /* Bit 19 Oriya */ # define TT_UCR_ORIYA (1L << 19) /* U+0B00-U+0B7F */ /* Bit 20 Tamil */ # define TT_UCR_TAMIL (1L << 20) /* U+0B80-U+0BFF */ /* Bit 21 Telugu */ # define TT_UCR_TELUGU (1L << 21) /* U+0C00-U+0C7F */ /* Bit 22 Kannada */ # define TT_UCR_KANNADA (1L << 22) /* U+0C80-U+0CFF */ /* Bit 23 Malayalam */ # define TT_UCR_MALAYALAM (1L << 23) /* U+0D00-U+0D7F */ /* Bit 24 Thai */ # define TT_UCR_THAI (1L << 24) /* U+0E00-U+0E7F */ /* Bit 25 Lao */ # define TT_UCR_LAO (1L << 25) /* U+0E80-U+0EFF */ /* Bit 26 Georgian */ /* Georgian Supplement */ # define TT_UCR_GEORGIAN (1L << 26) /* U+10A0-U+10FF */ /* U+2D00-U+2D2F */ /* Bit 27 Balinese */ # define TT_UCR_BALINESE (1L << 27) /* U+1B00-U+1B7F */ /* Bit 28 Hangul Jamo */ # define TT_UCR_HANGUL_JAMO (1L << 28) /* U+1100-U+11FF */ /* Bit 29 Latin Extended Additional */ /* Latin Extended-C */ /* Latin Extended-D */ # define TT_UCR_LATIN_EXTENDED_ADDITIONAL (1L << 29) /* U+1E00-U+1EFF */ /* U+2C60-U+2C7F */ /* U+A720-U+A7FF */ /* Bit 30 Greek Extended */ # define TT_UCR_GREEK_EXTENDED (1L << 30) /* U+1F00-U+1FFF */ /* Bit 31 General Punctuation */ /* Supplemental Punctuation */ # define TT_UCR_GENERAL_PUNCTUATION (1L << 31) /* U+2000-U+206F */ /* U+2E00-U+2E7F */ /* ulUnicodeRange2 */ /* --------------- */ /* Bit 32 Superscripts And Subscripts */ # define TT_UCR_SUPERSCRIPTS_SUBSCRIPTS (1L << 0) /* U+2070-U+209F */ /* Bit 33 Currency Symbols */ # define TT_UCR_CURRENCY_SYMBOLS (1L << 1) /* U+20A0-U+20CF */ /* Bit 34 Combining Diacritical Marks For Symbols */ # define TT_UCR_COMBINING_DIACRITICAL_MARKS_SYMB \\ (1L << 2) /* U+20D0-U+20FF */ /* Bit 35 Letterlike Symbols */ # define TT_UCR_LETTERLIKE_SYMBOLS (1L << 3) /* U+2100-U+214F */ /* Bit 36 Number Forms */ # define TT_UCR_NUMBER_FORMS (1L << 4) /* U+2150-U+218F */ /* Bit 37 Arrows */ /* Supplemental Arrows-A */ /* Supplemental Arrows-B */ /* Miscellaneous Symbols and Arrows */ # define TT_UCR_ARROWS (1L << 5) /* U+2190-U+21FF */ /* U+27F0-U+27FF */ /* U+2900-U+297F */ /* U+2B00-U+2BFF */ /* Bit 38 Mathematical Operators */ /* Supplemental Mathematical Operators */ /* Miscellaneous Mathematical Symbols-A */ /* Miscellaneous Mathematical Symbols-B */ # define TT_UCR_MATHEMATICAL_OPERATORS (1L << 6) /* U+2200-U+22FF */ /* U+2A00-U+2AFF */ /* U+27C0-U+27EF */ /* U+2980-U+29FF */ /* Bit 39 Miscellaneous Technical */ # define TT_UCR_MISCELLANEOUS_TECHNICAL (1L << 7) /* U+2300-U+23FF */ /* Bit 40 Control Pictures */ # define TT_UCR_CONTROL_PICTURES (1L << 8) /* U+2400-U+243F */ /* Bit 41 Optical Character Recognition */ # define TT_UCR_OCR (1L << 9) /* U+2440-U+245F */ /* Bit 42 Enclosed Alphanumerics */ # define TT_UCR_ENCLOSED_ALPHANUMERICS (1L << 10) /* U+2460-U+24FF */ /* Bit 43 Box Drawing */ # define TT_UCR_BOX_DRAWING (1L << 11) /* U+2500-U+257F */ /* Bit 44 Block Elements */ # define TT_UCR_BLOCK_ELEMENTS (1L << 12) /* U+2580-U+259F */ /* Bit 45 Geometric Shapes */ # define TT_UCR_GEOMETRIC_SHAPES (1L << 13) /* U+25A0-U+25FF */ /* Bit 46 Miscellaneous Symbols */ # define TT_UCR_MISCELLANEOUS_SYMBOLS (1L << 14) /* U+2600-U+26FF */ /* Bit 47 Dingbats */ # define TT_UCR_DINGBATS (1L << 15) /* U+2700-U+27BF */ /* Bit 48 CJK Symbols and Punctuation */ # define TT_UCR_CJK_SYMBOLS (1L << 16) /* U+3000-U+303F */ /* Bit 49 Hiragana */ # define TT_UCR_HIRAGANA (1L << 17) /* U+3040-U+309F */ /* Bit 50 Katakana */ /* Katakana Phonetic Extensions */ # define TT_UCR_KATAKANA (1L << 18) /* U+30A0-U+30FF */ /* U+31F0-U+31FF */ /* Bit 51 Bopomofo */ /* Bopomofo Extended */ # define TT_UCR_BOPOMOFO (1L << 19) /* U+3100-U+312F */ /* U+31A0-U+31BF */ /* Bit 52 Hangul Compatibility Jamo */ # define TT_UCR_HANGUL_COMPATIBILITY_JAMO (1L << 20) /* U+3130-U+318F */ /* Bit 53 Phags-Pa */ # define TT_UCR_CJK_MISC (1L << 21) /* U+A840-U+A87F */ # define TT_UCR_KANBUN TT_UCR_CJK_MISC /* deprecated */ # define TT_UCR_PHAGSPA /* Bit 54 Enclosed CJK Letters and Months */ # define TT_UCR_ENCLOSED_CJK_LETTERS_MONTHS (1L << 22) /* U+3200-U+32FF */ /* Bit 55 CJK Compatibility */ # define TT_UCR_CJK_COMPATIBILITY (1L << 23) /* U+3300-U+33FF */ /* Bit 56 Hangul Syllables */ # define TT_UCR_HANGUL (1L << 24) /* U+AC00-U+D7A3 */ /* Bit 57 High Surrogates */ /* High Private Use Surrogates */ /* Low Surrogates */ /* According to OpenType specs v.1.3+, */ /* setting bit 57 implies that there is */ /* at least one codepoint beyond the */ /* Basic Multilingual Plane that is */ /* supported by this font. So it really */ /* means >= U+10000. */ # define TT_UCR_SURROGATES (1L << 25) /* U+D800-U+DB7F */ /* U+DB80-U+DBFF */ /* U+DC00-U+DFFF */ # define TT_UCR_NON_PLANE_0 TT_UCR_SURROGATES /* Bit 58 Phoenician */ # define TT_UCR_PHOENICIAN (1L << 26) /*U+10900-U+1091F*/ /* Bit 59 CJK Unified Ideographs */ /* CJK Radicals Supplement */ /* Kangxi Radicals */ /* Ideographic Description Characters */ /* CJK Unified Ideographs Extension A */ /* CJK Unified Ideographs Extension B */ /* Kanbun */ # define TT_UCR_CJK_UNIFIED_IDEOGRAPHS (1L << 27) /* U+4E00-U+9FFF */ /* U+2E80-U+2EFF */ /* U+2F00-U+2FDF */ /* U+2FF0-U+2FFF */ /* U+3400-U+4DB5 */ /*U+20000-U+2A6DF*/ /* U+3190-U+319F */ /* Bit 60 Private Use */ # define TT_UCR_PRIVATE_USE (1L << 28) /* U+E000-U+F8FF */ /* Bit 61 CJK Strokes */ /* CJK Compatibility Ideographs */ /* CJK Compatibility Ideographs Supplement */ # define TT_UCR_CJK_COMPATIBILITY_IDEOGRAPHS (1L << 29) /* U+31C0-U+31EF */ /* U+F900-U+FAFF */ /*U+2F800-U+2FA1F*/ /* Bit 62 Alphabetic Presentation Forms */ # define TT_UCR_ALPHABETIC_PRESENTATION_FORMS (1L << 30) /* U+FB00-U+FB4F */ /* Bit 63 Arabic Presentation Forms-A */ # define TT_UCR_ARABIC_PRESENTATION_FORMS_A (1L << 31) /* U+FB50-U+FDFF */ /* ulUnicodeRange3 */ /* --------------- */ /* Bit 64 Combining Half Marks */ # define TT_UCR_COMBINING_HALF_MARKS (1L << 0) /* U+FE20-U+FE2F */ /* Bit 65 Vertical forms */ /* CJK Compatibility Forms */ # define TT_UCR_CJK_COMPATIBILITY_FORMS (1L << 1) /* U+FE10-U+FE1F */ /* U+FE30-U+FE4F */ /* Bit 66 Small Form Variants */ # define TT_UCR_SMALL_FORM_VARIANTS (1L << 2) /* U+FE50-U+FE6F */ /* Bit 67 Arabic Presentation Forms-B */ # define TT_UCR_ARABIC_PRESENTATION_FORMS_B (1L << 3) /* U+FE70-U+FEFE */ /* Bit 68 Halfwidth and Fullwidth Forms */ # define TT_UCR_HALFWIDTH_FULLWIDTH_FORMS (1L << 4) /* U+FF00-U+FFEF */ /* Bit 69 Specials */ # define TT_UCR_SPECIALS (1L << 5) /* U+FFF0-U+FFFD */ /* Bit 70 Tibetan */ # define TT_UCR_TIBETAN (1L << 6) /* U+0F00-U+0FFF */ /* Bit 71 Syriac */ # define TT_UCR_SYRIAC (1L << 7) /* U+0700-U+074F */ /* Bit 72 Thaana */ # define TT_UCR_THAANA (1L << 8) /* U+0780-U+07BF */ /* Bit 73 Sinhala */ # define TT_UCR_SINHALA (1L << 9) /* U+0D80-U+0DFF */ /* Bit 74 Myanmar */ # define TT_UCR_MYANMAR (1L << 10) /* U+1000-U+109F */ /* Bit 75 Ethiopic */ /* Ethiopic Supplement */ /* Ethiopic Extended */ # define TT_UCR_ETHIOPIC (1L << 11) /* U+1200-U+137F */ /* U+1380-U+139F */ /* U+2D80-U+2DDF */ /* Bit 76 Cherokee */ # define TT_UCR_CHEROKEE (1L << 12) /* U+13A0-U+13FF */ /* Bit 77 Unified Canadian Aboriginal Syllabics */ # define TT_UCR_CANADIAN_ABORIGINAL_SYLLABICS (1L << 13) /* U+1400-U+167F */ /* Bit 78 Ogham */ # define TT_UCR_OGHAM (1L << 14) /* U+1680-U+169F */ /* Bit 79 Runic */ # define TT_UCR_RUNIC (1L << 15) /* U+16A0-U+16FF */ /* Bit 80 Khmer */ /* Khmer Symbols */ # define TT_UCR_KHMER (1L << 16) /* U+1780-U+17FF */ /* U+19E0-U+19FF */ /* Bit 81 Mongolian */ # define TT_UCR_MONGOLIAN (1L << 17) /* U+1800-U+18AF */ /* Bit 82 Braille Patterns */ # define TT_UCR_BRAILLE (1L << 18) /* U+2800-U+28FF */ /* Bit 83 Yi Syllables */ /* Yi Radicals */ # define TT_UCR_YI (1L << 19) /* U+A000-U+A48F */ /* U+A490-U+A4CF */ /* Bit 84 Tagalog */ /* Hanunoo */ /* Buhid */ /* Tagbanwa */ # define TT_UCR_PHILIPPINE (1L << 20) /* U+1700-U+171F */ /* U+1720-U+173F */ /* U+1740-U+175F */ /* U+1760-U+177F */ /* Bit 85 Old Italic */ # define TT_UCR_OLD_ITALIC (1L << 21) /*U+10300-U+1032F*/ /* Bit 86 Gothic */ # define TT_UCR_GOTHIC (1L << 22) /*U+10330-U+1034F*/ /* Bit 87 Deseret */ # define TT_UCR_DESERET (1L << 23) /*U+10400-U+1044F*/ /* Bit 88 Byzantine Musical Symbols */ /* Musical Symbols */ /* Ancient Greek Musical Notation */ # define TT_UCR_MUSICAL_SYMBOLS (1L << 24) /*U+1D000-U+1D0FF*/ /*U+1D100-U+1D1FF*/ /*U+1D200-U+1D24F*/ /* Bit 89 Mathematical Alphanumeric Symbols */ # define TT_UCR_MATH_ALPHANUMERIC_SYMBOLS (1L << 25) /*U+1D400-U+1D7FF*/ /* Bit 90 Private Use (plane 15) */ /* Private Use (plane 16) */ # define TT_UCR_PRIVATE_USE_SUPPLEMENTARY (1L << 26) /*U+F0000-U+FFFFD*/ /*U+100000-U+10FFFD*/ /* Bit 91 Variation Selectors */ /* Variation Selectors Supplement */ # define TT_UCR_VARIATION_SELECTORS (1L << 27) /* U+FE00-U+FE0F */ /*U+E0100-U+E01EF*/ /* Bit 92 Tags */ # define TT_UCR_TAGS (1L << 28) /*U+E0000-U+E007F*/ /* Bit 93 Limbu */ # define TT_UCR_LIMBU (1L << 29) /* U+1900-U+194F */ /* Bit 94 Tai Le */ # define TT_UCR_TAI_LE (1L << 30) /* U+1950-U+197F */ /* Bit 95 New Tai Lue */ # define TT_UCR_NEW_TAI_LUE (1L << 31) /* U+1980-U+19DF */ /* ulUnicodeRange4 */ /* --------------- */ /* Bit 96 Buginese */ # define TT_UCR_BUGINESE (1L << 0) /* U+1A00-U+1A1F */ /* Bit 97 Glagolitic */ # define TT_UCR_GLAGOLITIC (1L << 1) /* U+2C00-U+2C5F */ /* Bit 98 Tifinagh */ # define TT_UCR_TIFINAGH (1L << 2) /* U+2D30-U+2D7F */ /* Bit 99 Yijing Hexagram Symbols */ # define TT_UCR_YIJING (1L << 3) /* U+4DC0-U+4DFF */ /* Bit 100 Syloti Nagri */ # define TT_UCR_SYLOTI_NAGRI (1L << 4) /* U+A800-U+A82F */ /* Bit 101 Linear B Syllabary */ /* Linear B Ideograms */ /* Aegean Numbers */ # define TT_UCR_LINEAR_B (1L << 5) /*U+10000-U+1007F*/ /*U+10080-U+100FF*/ /*U+10100-U+1013F*/ /* Bit 102 Ancient Greek Numbers */ # define TT_UCR_ANCIENT_GREEK_NUMBERS (1L << 6) /*U+10140-U+1018F*/ /* Bit 103 Ugaritic */ # define TT_UCR_UGARITIC (1L << 7) /*U+10380-U+1039F*/ /* Bit 104 Old Persian */ # define TT_UCR_OLD_PERSIAN (1L << 8) /*U+103A0-U+103DF*/ /* Bit 105 Shavian */ # define TT_UCR_SHAVIAN (1L << 9) /*U+10450-U+1047F*/ /* Bit 106 Osmanya */ # define TT_UCR_OSMANYA (1L << 10) /*U+10480-U+104AF*/ /* Bit 107 Cypriot Syllabary */ # define TT_UCR_CYPRIOT_SYLLABARY (1L << 11) /*U+10800-U+1083F*/ /* Bit 108 Kharoshthi */ # define TT_UCR_KHAROSHTHI (1L << 12) /*U+10A00-U+10A5F*/ /* Bit 109 Tai Xuan Jing Symbols */ # define TT_UCR_TAI_XUAN_JING (1L << 13) /*U+1D300-U+1D35F*/ /* Bit 110 Cuneiform */ /* Cuneiform Numbers and Punctuation */ # define TT_UCR_CUNEIFORM (1L << 14) /*U+12000-U+123FF*/ /*U+12400-U+1247F*/ /* Bit 111 Counting Rod Numerals */ # define TT_UCR_COUNTING_ROD_NUMERALS (1L << 15) /*U+1D360-U+1D37F*/ /* Bit 112 Sundanese */ # define TT_UCR_SUNDANESE (1L << 16) /* U+1B80-U+1BBF */ /* Bit 113 Lepcha */ # define TT_UCR_LEPCHA (1L << 17) /* U+1C00-U+1C4F */ /* Bit 114 Ol Chiki */ # define TT_UCR_OL_CHIKI (1L << 18) /* U+1C50-U+1C7F */ /* Bit 115 Saurashtra */ # define TT_UCR_SAURASHTRA (1L << 19) /* U+A880-U+A8DF */ /* Bit 116 Kayah Li */ # define TT_UCR_KAYAH_LI (1L << 20) /* U+A900-U+A92F */ /* Bit 117 Rejang */ # define TT_UCR_REJANG (1L << 21) /* U+A930-U+A95F */ /* Bit 118 Cham */ # define TT_UCR_CHAM (1L << 22) /* U+AA00-U+AA5F */ /* Bit 119 Ancient Symbols */ # define TT_UCR_ANCIENT_SYMBOLS (1L << 23) /*U+10190-U+101CF*/ /* Bit 120 Phaistos Disc */ # define TT_UCR_PHAISTOS_DISC (1L << 24) /*U+101D0-U+101FF*/ /* Bit 121 Carian */ /* Lycian */ /* Lydian */ # define TT_UCR_OLD_ANATOLIAN (1L << 25) /*U+102A0-U+102DF*/ /*U+10280-U+1029F*/ /*U+10920-U+1093F*/ /* Bit 122 Domino Tiles */ /* Mahjong Tiles */ # define TT_UCR_GAME_TILES (1L << 26) /*U+1F030-U+1F09F*/ /*U+1F000-U+1F02F*/ /* Bit 123-127 Reserved for process-internal usage */ Possible bit mask values for the ulUnicodeRangeX fields in an SFNT \u2018OS/2\u2019 table.","title":"TT_UCR_XXX"},{"location":"ft2-tt_driver.html","text":"FreeType \u00bb Docs \u00bb Controlling FreeType Modules \u00bb The TrueType driver The TrueType driver \u00b6 Synopsis \u00b6 While FreeType's TrueType driver doesn't expose API functions by itself, it is possible to control its behaviour with FT_Property_Set and FT_Property_Get . The TrueType driver's module name is \u2018truetype\u2019; a single property interpreter-version is available, as documented in the \u2018 Driver properties \u2019 section. To help understand the differences between interpreter versions, we introduce a list of definitions, kindly provided by Greg Hitchcock. Bi-Level Rendering Monochromatic rendering, exclusively used in the early days of TrueType by both Apple and Microsoft. Microsoft's GDI interface supported hinting of the right-side bearing point, such that the advance width could be non-linear. Most often this was done to achieve some level of glyph symmetry. To enable reasonable performance (e.g., not having to run hinting on all glyphs just to get the widths) there was a bit in the head table indicating if the side bearing was hinted, and additional tables, \u2018hdmx\u2019 and \u2018LTSH\u2019, to cache hinting widths across multiple sizes and device aspect ratios. Font Smoothing Microsoft's GDI implementation of anti-aliasing. Not traditional anti-aliasing as the outlines were hinted before the sampling. The widths matched the bi-level rendering. ClearType Rendering Technique that uses physical subpixels to improve rendering on LCD (and other) displays. Because of the higher resolution, many methods of improving symmetry in glyphs through hinting the right-side bearing were no longer necessary. This lead to what GDI calls \u2018natural widths\u2019 ClearType, see http://rastertragedy.com/RTRCh4.htm#Sec21 . Since hinting has extra resolution, most non-linearity went away, but it is still possible for hints to change the advance widths in this mode. ClearType Compatible Widths One of the earliest challenges with ClearType was allowing the implementation in GDI to be selected without requiring all UI and documents to reflow. To address this, a compatible method of rendering ClearType was added where the font hints are executed once to determine the width in bi-level rendering, and then re-run in ClearType, with the difference in widths being absorbed in the font hints for ClearType (mostly in the white space of hints); see http://rastertragedy.com/RTRCh4.htm#Sec20 . Somewhat by definition, compatible width ClearType allows for non-linear widths, but only when the bi-level version has non-linear widths. ClearType Subpixel Positioning One of the nice benefits of ClearType is the ability to more crisply display fractional widths; unfortunately, the GDI model of integer bitmaps did not support this. However, the WPF and Direct Write frameworks do support fractional widths. DWrite calls this \u2018natural mode\u2019, not to be confused with GDI's \u2018natural widths\u2019. Subpixel positioning, in the current implementation of Direct Write, unfortunately does not support hinted advance widths, see http://rastertragedy.com/RTRCh4.htm#Sec22 . Note that the TrueType interpreter fully allows the advance width to be adjusted in this mode, just the DWrite client will ignore those changes. ClearType Backward Compatibility This is a set of exceptions made in the TrueType interpreter to minimize hinting techniques that were problematic with the extra resolution of ClearType; see http://rastertragedy.com/RTRCh4.htm#Sec1 and https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx . This technique is not to be confused with ClearType compatible widths. ClearType backward compatibility has no direct impact on changing advance widths, but there might be an indirect impact on disabling some deltas. This could be worked around in backward compatibility mode. Native ClearType Mode (Not to be confused with \u2018natural widths\u2019.) This mode removes all the exceptions in the TrueType interpreter when running with ClearType. Any issues on widths would still apply, though.","title":"The TrueType driver"},{"location":"ft2-tt_driver.html#the-truetype-driver","text":"","title":"The TrueType driver"},{"location":"ft2-tt_driver.html#synopsis","text":"While FreeType's TrueType driver doesn't expose API functions by itself, it is possible to control its behaviour with FT_Property_Set and FT_Property_Get . The TrueType driver's module name is \u2018truetype\u2019; a single property interpreter-version is available, as documented in the \u2018 Driver properties \u2019 section. To help understand the differences between interpreter versions, we introduce a list of definitions, kindly provided by Greg Hitchcock. Bi-Level Rendering Monochromatic rendering, exclusively used in the early days of TrueType by both Apple and Microsoft. Microsoft's GDI interface supported hinting of the right-side bearing point, such that the advance width could be non-linear. Most often this was done to achieve some level of glyph symmetry. To enable reasonable performance (e.g., not having to run hinting on all glyphs just to get the widths) there was a bit in the head table indicating if the side bearing was hinted, and additional tables, \u2018hdmx\u2019 and \u2018LTSH\u2019, to cache hinting widths across multiple sizes and device aspect ratios. Font Smoothing Microsoft's GDI implementation of anti-aliasing. Not traditional anti-aliasing as the outlines were hinted before the sampling. The widths matched the bi-level rendering. ClearType Rendering Technique that uses physical subpixels to improve rendering on LCD (and other) displays. Because of the higher resolution, many methods of improving symmetry in glyphs through hinting the right-side bearing were no longer necessary. This lead to what GDI calls \u2018natural widths\u2019 ClearType, see http://rastertragedy.com/RTRCh4.htm#Sec21 . Since hinting has extra resolution, most non-linearity went away, but it is still possible for hints to change the advance widths in this mode. ClearType Compatible Widths One of the earliest challenges with ClearType was allowing the implementation in GDI to be selected without requiring all UI and documents to reflow. To address this, a compatible method of rendering ClearType was added where the font hints are executed once to determine the width in bi-level rendering, and then re-run in ClearType, with the difference in widths being absorbed in the font hints for ClearType (mostly in the white space of hints); see http://rastertragedy.com/RTRCh4.htm#Sec20 . Somewhat by definition, compatible width ClearType allows for non-linear widths, but only when the bi-level version has non-linear widths. ClearType Subpixel Positioning One of the nice benefits of ClearType is the ability to more crisply display fractional widths; unfortunately, the GDI model of integer bitmaps did not support this. However, the WPF and Direct Write frameworks do support fractional widths. DWrite calls this \u2018natural mode\u2019, not to be confused with GDI's \u2018natural widths\u2019. Subpixel positioning, in the current implementation of Direct Write, unfortunately does not support hinted advance widths, see http://rastertragedy.com/RTRCh4.htm#Sec22 . Note that the TrueType interpreter fully allows the advance width to be adjusted in this mode, just the DWrite client will ignore those changes. ClearType Backward Compatibility This is a set of exceptions made in the TrueType interpreter to minimize hinting techniques that were problematic with the extra resolution of ClearType; see http://rastertragedy.com/RTRCh4.htm#Sec1 and https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx . This technique is not to be confused with ClearType compatible widths. ClearType backward compatibility has no direct impact on changing advance widths, but there might be an indirect impact on disabling some deltas. This could be worked around in backward compatibility mode. Native ClearType Mode (Not to be confused with \u2018natural widths\u2019.) This mode removes all the exceptions in the TrueType interpreter when running with ClearType. Any issues on widths would still apply, though.","title":"Synopsis"},{"location":"ft2-type1_tables.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb Type 1 Tables Type 1 Tables \u00b6 Synopsis \u00b6 This section contains the definition of Type 1-specific tables, including structures related to other PostScript font formats. PS_FontInfoRec \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct PS_FontInfoRec_ { FT_String * version; FT_String * notice; FT_String * full_name; FT_String * family_name; FT_String * weight; FT_Long italic_angle; FT_Bool is_fixed_pitch; FT_Short underline_position; FT_UShort underline_thickness; } PS_FontInfoRec ; A structure used to model a Type 1 or Type 2 FontInfo dictionary. Note that for Multiple Master fonts, each instance has its own FontInfo dictionary. PS_FontInfo \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct PS_FontInfoRec_* PS_FontInfo ; A handle to a PS_FontInfoRec structure. PS_PrivateRec \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct PS_PrivateRec_ { FT_Int unique_id; FT_Int lenIV; FT_Byte num_blue_values; FT_Byte num_other_blues; FT_Byte num_family_blues; FT_Byte num_family_other_blues; FT_Short blue_values[14]; FT_Short other_blues[10]; FT_Short family_blues [14]; FT_Short family_other_blues[10]; FT_Fixed blue_scale; FT_Int blue_shift; FT_Int blue_fuzz; FT_UShort standard_width[1]; FT_UShort standard_height[1]; FT_Byte num_snap_widths; FT_Byte num_snap_heights; FT_Bool force_bold; FT_Bool round_stem_up; FT_Short snap_widths [13]; /* including std width */ FT_Short snap_heights[13]; /* including std height */ FT_Fixed expansion_factor; FT_Long language_group; FT_Long password; FT_Short min_feature[2]; } PS_PrivateRec ; A structure used to model a Type 1 or Type 2 private dictionary. Note that for Multiple Master fonts, each instance has its own Private dictionary. PS_Private \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct PS_PrivateRec_* PS_Private ; A handle to a PS_PrivateRec structure. CID_FaceDictRec \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct CID_FaceDictRec_ { PS_PrivateRec private_dict; FT_UInt len_buildchar; FT_Fixed forcebold_threshold; FT_Pos stroke_width; FT_Fixed expansion_factor; /* this is a duplicate of */ /* `private_dict->expansion_factor' */ FT_Byte paint_type; FT_Byte font_type; FT_Matrix font_matrix; FT_Vector font_offset; FT_UInt num_subrs; FT_ULong subrmap_offset; FT_UInt sd_bytes; } CID_FaceDictRec ; A structure used to represent data in a CID top-level dictionary. In most cases, they are part of the font's \u2018/FDArray\u2019 array. Within a CID font file, such (internal) subfont dictionaries are enclosed by \u2018%ADOBeginFontDict\u2019 and \u2018%ADOEndFontDict\u2019 comments. Note that CID_FaceDictRec misses a field for the \u2018/FontName\u2019 keyword, specifying the subfont's name (the top-level font name is given by the \u2018/CIDFontName\u2019 keyword). This is an oversight, but it doesn't limit the \u2018cid\u2019 font module's functionality because FreeType neither needs this entry nor gives access to CID subfonts. CID_FaceDict \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct CID_FaceDictRec_* CID_FaceDict ; A handle to a CID_FaceDictRec structure. CID_FaceInfoRec \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct CID_FaceInfoRec_ { FT_String * cid_font_name; FT_Fixed cid_version; FT_Int cid_font_type; FT_String * registry; FT_String * ordering; FT_Int supplement; PS_FontInfoRec font_info; FT_BBox font_bbox; FT_ULong uid_base; FT_Int num_xuid; FT_ULong xuid[16]; FT_ULong cidmap_offset; FT_UInt fd_bytes; FT_UInt gd_bytes; FT_ULong cid_count; FT_UInt num_dicts; CID_FaceDict font_dicts; FT_ULong data_offset; } CID_FaceInfoRec ; A structure used to represent CID Face information. CID_FaceInfo \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct CID_FaceInfoRec_* CID_FaceInfo ; A handle to a CID_FaceInfoRec structure. FT_Has_PS_Glyph_Names \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). FT_EXPORT( FT_Int ) FT_Has_PS_Glyph_Names ( FT_Face face ); Return true if a given face provides reliable PostScript glyph names. This is similar to using the FT_HAS_GLYPH_NAMES macro, except that certain fonts (mostly TrueType) contain incorrect glyph name tables. When this function returns true, the caller is sure that the glyph names returned by FT_Get_Glyph_Name are reliable. input face face handle return Boolean. True if glyph names are reliable. FT_Get_PS_Font_Info \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). FT_EXPORT( FT_Error ) FT_Get_PS_Font_Info ( FT_Face face, PS_FontInfo afont_info ); Retrieve the PS_FontInfoRec structure corresponding to a given PostScript font. input face PostScript face handle. output afont_info A pointer to a PS_FontInfoRec object. return FreeType error code. 0 means success. note String pointers within the PS_FontInfoRec structure are owned by the face and don't need to be freed by the caller. Missing entries in the font's FontInfo dictionary are represented by NULL pointers. The following font formats support this feature: \u2018Type 1\u2019, \u2018Type 42\u2019, \u2018CFF\u2019, \u2018CID Type 1\u2019. For other font formats this function returns the FT_Err_Invalid_Argument error code. example PS_FontInfoRec font_info; error = FT_Get_PS_Font_Info( face, &font_info ); ... FT_Get_PS_Font_Private \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). FT_EXPORT( FT_Error ) FT_Get_PS_Font_Private ( FT_Face face, PS_Private afont_private ); Retrieve the PS_PrivateRec structure corresponding to a given PostScript font. input face PostScript face handle. output afont_private A pointer to a PS_PrivateRec object. return FreeType error code. 0 means success. note The string pointers within the PS_PrivateRec structure are owned by the face and don't need to be freed by the caller. Only the \u2018Type 1\u2019 font format supports this feature. For other font formats this function returns the FT_Err_Invalid_Argument error code. example PS_PrivateRec font_private; error = FT_Get_PS_Font_Private( face, &font_private ); ... FT_Get_PS_Font_Value \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). FT_EXPORT( FT_Long ) FT_Get_PS_Font_Value ( FT_Face face, PS_Dict_Keys key, FT_UInt idx, void *value, FT_Long value_len ); Retrieve the value for the supplied key from a PostScript font. input face PostScript face handle. key An enumeration value representing the dictionary key to retrieve. idx For array values, this specifies the index to be returned. value A pointer to memory into which to write the value. valen_len The size, in bytes, of the memory supplied for the value. output value The value matching the above key, if it exists. return The amount of memory (in bytes) required to hold the requested value (if it exists, -1 otherwise). note The values returned are not pointers into the internal structures of the face, but are \u2018fresh\u2019 copies, so that the memory containing them belongs to the calling application. This also enforces the \u2018read-only\u2019 nature of these values, i.e., this function cannot be used to manipulate the face. value is a void pointer because the values returned can be of various types. If either value is NULL or value_len is too small, just the required memory size for the requested entry is returned. The idx parameter is used, not only to retrieve elements of, for example, the FontMatrix or FontBBox, but also to retrieve name keys from the CharStrings dictionary, and the charstrings themselves. It is ignored for atomic values. PS_DICT_BLUE_SCALE returns a value that is scaled up by 1000. To get the value as in the font stream, you need to divide by 65536000.0 (to remove the FT_Fixed scale, and the x1000 scale). IMPORTANT: Only key/value pairs read by the FreeType interpreter can be retrieved. So, for example, PostScript procedures such as NP, ND, and RD are not available. Arbitrary keys are, obviously, not be available either. If the font's format is not PostScript-based, this function returns the FT_Err_Invalid_Argument error code. since 2.4.8 T1_Blend_Flags \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef enum T1_Blend_Flags_ { /* required fields in a FontInfo blend dictionary */ T1_BLEND_UNDERLINE_POSITION = 0, T1_BLEND_UNDERLINE_THICKNESS , T1_BLEND_ITALIC_ANGLE , /* required fields in a Private blend dictionary */ T1_BLEND_BLUE_VALUES , T1_BLEND_OTHER_BLUES , T1_BLEND_STANDARD_WIDTH , T1_BLEND_STANDARD_HEIGHT , T1_BLEND_STEM_SNAP_WIDTHS , T1_BLEND_STEM_SNAP_HEIGHTS , T1_BLEND_BLUE_SCALE , T1_BLEND_BLUE_SHIFT , T1_BLEND_FAMILY_BLUES , T1_BLEND_FAMILY_OTHER_BLUES , T1_BLEND_FORCE_BOLD , T1_BLEND_MAX /* do not remove */ } T1_Blend_Flags ; /* these constants are deprecated; use the corresponding */ /* ` T1_Blend_Flags ` values instead */ # define t1_blend_underline_position T1_BLEND_UNDERLINE_POSITION # define t1_blend_underline_thickness T1_BLEND_UNDERLINE_THICKNESS # define t1_blend_italic_angle T1_BLEND_ITALIC_ANGLE # define t1_blend_blue_values T1_BLEND_BLUE_VALUES # define t1_blend_other_blues T1_BLEND_OTHER_BLUES # define t1_blend_standard_widths T1_BLEND_STANDARD_WIDTH # define t1_blend_standard_height T1_BLEND_STANDARD_HEIGHT # define t1_blend_stem_snap_widths T1_BLEND_STEM_SNAP_WIDTHS # define t1_blend_stem_snap_heights T1_BLEND_STEM_SNAP_HEIGHTS # define t1_blend_blue_scale T1_BLEND_BLUE_SCALE # define t1_blend_blue_shift T1_BLEND_BLUE_SHIFT # define t1_blend_family_blues T1_BLEND_FAMILY_BLUES # define t1_blend_family_other_blues T1_BLEND_FAMILY_OTHER_BLUES # define t1_blend_force_bold T1_BLEND_FORCE_BOLD # define t1_blend_max T1_BLEND_MAX A set of flags used to indicate which fields are present in a given blend dictionary (font info or private). Used to support Multiple Masters fonts. values T1_BLEND_UNDERLINE_POSITION T1_BLEND_UNDERLINE_THICKNESS T1_BLEND_ITALIC_ANGLE T1_BLEND_BLUE_VALUES T1_BLEND_OTHER_BLUES T1_BLEND_STANDARD_WIDTH T1_BLEND_STANDARD_HEIGHT T1_BLEND_STEM_SNAP_WIDTHS T1_BLEND_STEM_SNAP_HEIGHTS T1_BLEND_BLUE_SCALE T1_BLEND_BLUE_SHIFT T1_BLEND_FAMILY_BLUES T1_BLEND_FAMILY_OTHER_BLUES T1_BLEND_FORCE_BOLD T1_EncodingType \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef enum T1_EncodingType_ { T1_ENCODING_TYPE_NONE = 0, T1_ENCODING_TYPE_ARRAY , T1_ENCODING_TYPE_STANDARD , T1_ENCODING_TYPE_ISOLATIN1 , T1_ENCODING_TYPE_EXPERT } T1_EncodingType ; An enumeration describing the \u2018Encoding\u2019 entry in a Type 1 dictionary. values T1_ENCODING_TYPE_NONE T1_ENCODING_TYPE_ARRAY T1_ENCODING_TYPE_STANDARD T1_ENCODING_TYPE_ISOLATIN1 T1_ENCODING_TYPE_EXPERT since 2.4.8 PS_Dict_Keys \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef enum PS_Dict_Keys_ { /* conventionally in the font dictionary */ PS_DICT_FONT_TYPE , /* FT_Byte */ PS_DICT_FONT_MATRIX , /* FT_Fixed */ PS_DICT_FONT_BBOX , /* FT_Fixed */ PS_DICT_PAINT_TYPE , /* FT_Byte */ PS_DICT_FONT_NAME , /* FT_String * */ PS_DICT_UNIQUE_ID , /* FT_Int */ PS_DICT_NUM_CHAR_STRINGS , /* FT_Int */ PS_DICT_CHAR_STRING_KEY , /* FT_String * */ PS_DICT_CHAR_STRING , /* FT_String * */ PS_DICT_ENCODING_TYPE , /* T1_EncodingType */ PS_DICT_ENCODING_ENTRY , /* FT_String * */ /* conventionally in the font Private dictionary */ PS_DICT_NUM_SUBRS , /* FT_Int */ PS_DICT_SUBR , /* FT_String * */ PS_DICT_STD_HW , /* FT_UShort */ PS_DICT_STD_VW , /* FT_UShort */ PS_DICT_NUM_BLUE_VALUES , /* FT_Byte */ PS_DICT_BLUE_VALUE , /* FT_Short */ PS_DICT_BLUE_FUZZ , /* FT_Int */ PS_DICT_NUM_OTHER_BLUES , /* FT_Byte */ PS_DICT_OTHER_BLUE , /* FT_Short */ PS_DICT_NUM_FAMILY_BLUES , /* FT_Byte */ PS_DICT_FAMILY_BLUE , /* FT_Short */ PS_DICT_NUM_FAMILY_OTHER_BLUES , /* FT_Byte */ PS_DICT_FAMILY_OTHER_BLUE , /* FT_Short */ PS_DICT_BLUE_SCALE , /* FT_Fixed */ PS_DICT_BLUE_SHIFT , /* FT_Int */ PS_DICT_NUM_STEM_SNAP_H , /* FT_Byte */ PS_DICT_STEM_SNAP_H , /* FT_Short */ PS_DICT_NUM_STEM_SNAP_V , /* FT_Byte */ PS_DICT_STEM_SNAP_V , /* FT_Short */ PS_DICT_FORCE_BOLD , /* FT_Bool */ PS_DICT_RND_STEM_UP , /* FT_Bool */ PS_DICT_MIN_FEATURE , /* FT_Short */ PS_DICT_LEN_IV , /* FT_Int */ PS_DICT_PASSWORD , /* FT_Long */ PS_DICT_LANGUAGE_GROUP , /* FT_Long */ /* conventionally in the font FontInfo dictionary */ PS_DICT_VERSION , /* FT_String * */ PS_DICT_NOTICE , /* FT_String * */ PS_DICT_FULL_NAME , /* FT_String * */ PS_DICT_FAMILY_NAME , /* FT_String * */ PS_DICT_WEIGHT , /* FT_String * */ PS_DICT_IS_FIXED_PITCH , /* FT_Bool */ PS_DICT_UNDERLINE_POSITION , /* FT_Short */ PS_DICT_UNDERLINE_THICKNESS , /* FT_UShort */ PS_DICT_FS_TYPE , /* FT_UShort */ PS_DICT_ITALIC_ANGLE , /* FT_Long */ PS_DICT_MAX = PS_DICT_ITALIC_ANGLE } PS_Dict_Keys ; An enumeration used in calls to FT_Get_PS_Font_Value to identify the Type 1 dictionary entry to retrieve. values PS_DICT_FONT_TYPE PS_DICT_FONT_MATRIX PS_DICT_FONT_BBOX PS_DICT_PAINT_TYPE PS_DICT_FONT_NAME PS_DICT_UNIQUE_ID PS_DICT_NUM_CHAR_STRINGS PS_DICT_CHAR_STRING_KEY PS_DICT_CHAR_STRING PS_DICT_ENCODING_TYPE PS_DICT_ENCODING_ENTRY PS_DICT_NUM_SUBRS PS_DICT_SUBR PS_DICT_STD_HW PS_DICT_STD_VW PS_DICT_NUM_BLUE_VALUES PS_DICT_BLUE_VALUE PS_DICT_BLUE_FUZZ PS_DICT_NUM_OTHER_BLUES PS_DICT_OTHER_BLUE PS_DICT_NUM_FAMILY_BLUES PS_DICT_FAMILY_BLUE PS_DICT_NUM_FAMILY_OTHER_BLUES PS_DICT_FAMILY_OTHER_BLUE PS_DICT_BLUE_SCALE PS_DICT_BLUE_SHIFT PS_DICT_NUM_STEM_SNAP_H PS_DICT_STEM_SNAP_H PS_DICT_NUM_STEM_SNAP_V PS_DICT_STEM_SNAP_V PS_DICT_FORCE_BOLD PS_DICT_RND_STEM_UP PS_DICT_MIN_FEATURE PS_DICT_LEN_IV PS_DICT_PASSWORD PS_DICT_LANGUAGE_GROUP PS_DICT_VERSION PS_DICT_NOTICE PS_DICT_FULL_NAME PS_DICT_FAMILY_NAME PS_DICT_WEIGHT PS_DICT_IS_FIXED_PITCH PS_DICT_UNDERLINE_POSITION PS_DICT_UNDERLINE_THICKNESS PS_DICT_FS_TYPE PS_DICT_ITALIC_ANGLE since 2.4.8 T1_FontInfo \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef PS_FontInfoRec T1_FontInfo ; This type is equivalent to PS_FontInfoRec . It is deprecated but kept to maintain source compatibility between various versions of FreeType. T1_Private \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef PS_PrivateRec T1_Private ; This type is equivalent to PS_PrivateRec . It is deprecated but kept to maintain source compatibility between various versions of FreeType. CID_FontDict \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef CID_FaceDictRec CID_FontDict ; This type is equivalent to CID_FaceDictRec . It is deprecated but kept to maintain source compatibility between various versions of FreeType. CID_Info \u00b6 Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef CID_FaceInfoRec CID_Info ; This type is equivalent to CID_FaceInfoRec . It is deprecated but kept to maintain source compatibility between various versions of FreeType.","title":"Type 1 Tables"},{"location":"ft2-type1_tables.html#type-1-tables","text":"","title":"Type 1 Tables"},{"location":"ft2-type1_tables.html#synopsis","text":"This section contains the definition of Type 1-specific tables, including structures related to other PostScript font formats.","title":"Synopsis"},{"location":"ft2-type1_tables.html#ps_fontinforec","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct PS_FontInfoRec_ { FT_String * version; FT_String * notice; FT_String * full_name; FT_String * family_name; FT_String * weight; FT_Long italic_angle; FT_Bool is_fixed_pitch; FT_Short underline_position; FT_UShort underline_thickness; } PS_FontInfoRec ; A structure used to model a Type 1 or Type 2 FontInfo dictionary. Note that for Multiple Master fonts, each instance has its own FontInfo dictionary.","title":"PS_FontInfoRec"},{"location":"ft2-type1_tables.html#ps_fontinfo","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct PS_FontInfoRec_* PS_FontInfo ; A handle to a PS_FontInfoRec structure.","title":"PS_FontInfo"},{"location":"ft2-type1_tables.html#ps_privaterec","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct PS_PrivateRec_ { FT_Int unique_id; FT_Int lenIV; FT_Byte num_blue_values; FT_Byte num_other_blues; FT_Byte num_family_blues; FT_Byte num_family_other_blues; FT_Short blue_values[14]; FT_Short other_blues[10]; FT_Short family_blues [14]; FT_Short family_other_blues[10]; FT_Fixed blue_scale; FT_Int blue_shift; FT_Int blue_fuzz; FT_UShort standard_width[1]; FT_UShort standard_height[1]; FT_Byte num_snap_widths; FT_Byte num_snap_heights; FT_Bool force_bold; FT_Bool round_stem_up; FT_Short snap_widths [13]; /* including std width */ FT_Short snap_heights[13]; /* including std height */ FT_Fixed expansion_factor; FT_Long language_group; FT_Long password; FT_Short min_feature[2]; } PS_PrivateRec ; A structure used to model a Type 1 or Type 2 private dictionary. Note that for Multiple Master fonts, each instance has its own Private dictionary.","title":"PS_PrivateRec"},{"location":"ft2-type1_tables.html#ps_private","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct PS_PrivateRec_* PS_Private ; A handle to a PS_PrivateRec structure.","title":"PS_Private"},{"location":"ft2-type1_tables.html#cid_facedictrec","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct CID_FaceDictRec_ { PS_PrivateRec private_dict; FT_UInt len_buildchar; FT_Fixed forcebold_threshold; FT_Pos stroke_width; FT_Fixed expansion_factor; /* this is a duplicate of */ /* `private_dict->expansion_factor' */ FT_Byte paint_type; FT_Byte font_type; FT_Matrix font_matrix; FT_Vector font_offset; FT_UInt num_subrs; FT_ULong subrmap_offset; FT_UInt sd_bytes; } CID_FaceDictRec ; A structure used to represent data in a CID top-level dictionary. In most cases, they are part of the font's \u2018/FDArray\u2019 array. Within a CID font file, such (internal) subfont dictionaries are enclosed by \u2018%ADOBeginFontDict\u2019 and \u2018%ADOEndFontDict\u2019 comments. Note that CID_FaceDictRec misses a field for the \u2018/FontName\u2019 keyword, specifying the subfont's name (the top-level font name is given by the \u2018/CIDFontName\u2019 keyword). This is an oversight, but it doesn't limit the \u2018cid\u2019 font module's functionality because FreeType neither needs this entry nor gives access to CID subfonts.","title":"CID_FaceDictRec"},{"location":"ft2-type1_tables.html#cid_facedict","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct CID_FaceDictRec_* CID_FaceDict ; A handle to a CID_FaceDictRec structure.","title":"CID_FaceDict"},{"location":"ft2-type1_tables.html#cid_faceinforec","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct CID_FaceInfoRec_ { FT_String * cid_font_name; FT_Fixed cid_version; FT_Int cid_font_type; FT_String * registry; FT_String * ordering; FT_Int supplement; PS_FontInfoRec font_info; FT_BBox font_bbox; FT_ULong uid_base; FT_Int num_xuid; FT_ULong xuid[16]; FT_ULong cidmap_offset; FT_UInt fd_bytes; FT_UInt gd_bytes; FT_ULong cid_count; FT_UInt num_dicts; CID_FaceDict font_dicts; FT_ULong data_offset; } CID_FaceInfoRec ; A structure used to represent CID Face information.","title":"CID_FaceInfoRec"},{"location":"ft2-type1_tables.html#cid_faceinfo","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef struct CID_FaceInfoRec_* CID_FaceInfo ; A handle to a CID_FaceInfoRec structure.","title":"CID_FaceInfo"},{"location":"ft2-type1_tables.html#ft_has_ps_glyph_names","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). FT_EXPORT( FT_Int ) FT_Has_PS_Glyph_Names ( FT_Face face ); Return true if a given face provides reliable PostScript glyph names. This is similar to using the FT_HAS_GLYPH_NAMES macro, except that certain fonts (mostly TrueType) contain incorrect glyph name tables. When this function returns true, the caller is sure that the glyph names returned by FT_Get_Glyph_Name are reliable.","title":"FT_Has_PS_Glyph_Names"},{"location":"ft2-type1_tables.html#ft_get_ps_font_info","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). FT_EXPORT( FT_Error ) FT_Get_PS_Font_Info ( FT_Face face, PS_FontInfo afont_info ); Retrieve the PS_FontInfoRec structure corresponding to a given PostScript font.","title":"FT_Get_PS_Font_Info"},{"location":"ft2-type1_tables.html#ft_get_ps_font_private","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). FT_EXPORT( FT_Error ) FT_Get_PS_Font_Private ( FT_Face face, PS_Private afont_private ); Retrieve the PS_PrivateRec structure corresponding to a given PostScript font.","title":"FT_Get_PS_Font_Private"},{"location":"ft2-type1_tables.html#ft_get_ps_font_value","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). FT_EXPORT( FT_Long ) FT_Get_PS_Font_Value ( FT_Face face, PS_Dict_Keys key, FT_UInt idx, void *value, FT_Long value_len ); Retrieve the value for the supplied key from a PostScript font.","title":"FT_Get_PS_Font_Value"},{"location":"ft2-type1_tables.html#t1_blend_flags","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef enum T1_Blend_Flags_ { /* required fields in a FontInfo blend dictionary */ T1_BLEND_UNDERLINE_POSITION = 0, T1_BLEND_UNDERLINE_THICKNESS , T1_BLEND_ITALIC_ANGLE , /* required fields in a Private blend dictionary */ T1_BLEND_BLUE_VALUES , T1_BLEND_OTHER_BLUES , T1_BLEND_STANDARD_WIDTH , T1_BLEND_STANDARD_HEIGHT , T1_BLEND_STEM_SNAP_WIDTHS , T1_BLEND_STEM_SNAP_HEIGHTS , T1_BLEND_BLUE_SCALE , T1_BLEND_BLUE_SHIFT , T1_BLEND_FAMILY_BLUES , T1_BLEND_FAMILY_OTHER_BLUES , T1_BLEND_FORCE_BOLD , T1_BLEND_MAX /* do not remove */ } T1_Blend_Flags ; /* these constants are deprecated; use the corresponding */ /* ` T1_Blend_Flags ` values instead */ # define t1_blend_underline_position T1_BLEND_UNDERLINE_POSITION # define t1_blend_underline_thickness T1_BLEND_UNDERLINE_THICKNESS # define t1_blend_italic_angle T1_BLEND_ITALIC_ANGLE # define t1_blend_blue_values T1_BLEND_BLUE_VALUES # define t1_blend_other_blues T1_BLEND_OTHER_BLUES # define t1_blend_standard_widths T1_BLEND_STANDARD_WIDTH # define t1_blend_standard_height T1_BLEND_STANDARD_HEIGHT # define t1_blend_stem_snap_widths T1_BLEND_STEM_SNAP_WIDTHS # define t1_blend_stem_snap_heights T1_BLEND_STEM_SNAP_HEIGHTS # define t1_blend_blue_scale T1_BLEND_BLUE_SCALE # define t1_blend_blue_shift T1_BLEND_BLUE_SHIFT # define t1_blend_family_blues T1_BLEND_FAMILY_BLUES # define t1_blend_family_other_blues T1_BLEND_FAMILY_OTHER_BLUES # define t1_blend_force_bold T1_BLEND_FORCE_BOLD # define t1_blend_max T1_BLEND_MAX A set of flags used to indicate which fields are present in a given blend dictionary (font info or private). Used to support Multiple Masters fonts.","title":"T1_Blend_Flags"},{"location":"ft2-type1_tables.html#t1_encodingtype","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef enum T1_EncodingType_ { T1_ENCODING_TYPE_NONE = 0, T1_ENCODING_TYPE_ARRAY , T1_ENCODING_TYPE_STANDARD , T1_ENCODING_TYPE_ISOLATIN1 , T1_ENCODING_TYPE_EXPERT } T1_EncodingType ; An enumeration describing the \u2018Encoding\u2019 entry in a Type 1 dictionary.","title":"T1_EncodingType"},{"location":"ft2-type1_tables.html#ps_dict_keys","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef enum PS_Dict_Keys_ { /* conventionally in the font dictionary */ PS_DICT_FONT_TYPE , /* FT_Byte */ PS_DICT_FONT_MATRIX , /* FT_Fixed */ PS_DICT_FONT_BBOX , /* FT_Fixed */ PS_DICT_PAINT_TYPE , /* FT_Byte */ PS_DICT_FONT_NAME , /* FT_String * */ PS_DICT_UNIQUE_ID , /* FT_Int */ PS_DICT_NUM_CHAR_STRINGS , /* FT_Int */ PS_DICT_CHAR_STRING_KEY , /* FT_String * */ PS_DICT_CHAR_STRING , /* FT_String * */ PS_DICT_ENCODING_TYPE , /* T1_EncodingType */ PS_DICT_ENCODING_ENTRY , /* FT_String * */ /* conventionally in the font Private dictionary */ PS_DICT_NUM_SUBRS , /* FT_Int */ PS_DICT_SUBR , /* FT_String * */ PS_DICT_STD_HW , /* FT_UShort */ PS_DICT_STD_VW , /* FT_UShort */ PS_DICT_NUM_BLUE_VALUES , /* FT_Byte */ PS_DICT_BLUE_VALUE , /* FT_Short */ PS_DICT_BLUE_FUZZ , /* FT_Int */ PS_DICT_NUM_OTHER_BLUES , /* FT_Byte */ PS_DICT_OTHER_BLUE , /* FT_Short */ PS_DICT_NUM_FAMILY_BLUES , /* FT_Byte */ PS_DICT_FAMILY_BLUE , /* FT_Short */ PS_DICT_NUM_FAMILY_OTHER_BLUES , /* FT_Byte */ PS_DICT_FAMILY_OTHER_BLUE , /* FT_Short */ PS_DICT_BLUE_SCALE , /* FT_Fixed */ PS_DICT_BLUE_SHIFT , /* FT_Int */ PS_DICT_NUM_STEM_SNAP_H , /* FT_Byte */ PS_DICT_STEM_SNAP_H , /* FT_Short */ PS_DICT_NUM_STEM_SNAP_V , /* FT_Byte */ PS_DICT_STEM_SNAP_V , /* FT_Short */ PS_DICT_FORCE_BOLD , /* FT_Bool */ PS_DICT_RND_STEM_UP , /* FT_Bool */ PS_DICT_MIN_FEATURE , /* FT_Short */ PS_DICT_LEN_IV , /* FT_Int */ PS_DICT_PASSWORD , /* FT_Long */ PS_DICT_LANGUAGE_GROUP , /* FT_Long */ /* conventionally in the font FontInfo dictionary */ PS_DICT_VERSION , /* FT_String * */ PS_DICT_NOTICE , /* FT_String * */ PS_DICT_FULL_NAME , /* FT_String * */ PS_DICT_FAMILY_NAME , /* FT_String * */ PS_DICT_WEIGHT , /* FT_String * */ PS_DICT_IS_FIXED_PITCH , /* FT_Bool */ PS_DICT_UNDERLINE_POSITION , /* FT_Short */ PS_DICT_UNDERLINE_THICKNESS , /* FT_UShort */ PS_DICT_FS_TYPE , /* FT_UShort */ PS_DICT_ITALIC_ANGLE , /* FT_Long */ PS_DICT_MAX = PS_DICT_ITALIC_ANGLE } PS_Dict_Keys ; An enumeration used in calls to FT_Get_PS_Font_Value to identify the Type 1 dictionary entry to retrieve.","title":"PS_Dict_Keys"},{"location":"ft2-type1_tables.html#t1_fontinfo","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef PS_FontInfoRec T1_FontInfo ; This type is equivalent to PS_FontInfoRec . It is deprecated but kept to maintain source compatibility between various versions of FreeType.","title":"T1_FontInfo"},{"location":"ft2-type1_tables.html#t1_private","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef PS_PrivateRec T1_Private ; This type is equivalent to PS_PrivateRec . It is deprecated but kept to maintain source compatibility between various versions of FreeType.","title":"T1_Private"},{"location":"ft2-type1_tables.html#cid_fontdict","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef CID_FaceDictRec CID_FontDict ; This type is equivalent to CID_FaceDictRec . It is deprecated but kept to maintain source compatibility between various versions of FreeType.","title":"CID_FontDict"},{"location":"ft2-type1_tables.html#cid_info","text":"Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h). typedef CID_FaceInfoRec CID_Info ; This type is equivalent to CID_FaceInfoRec . It is deprecated but kept to maintain source compatibility between various versions of FreeType.","title":"CID_Info"},{"location":"ft2-user_allocation.html","text":"FreeType \u00bb Docs \u00bb General Remarks \u00bb User allocation User allocation \u00b6 Synopsis \u00b6 FreeType assumes that structures allocated by the user and passed as arguments are zeroed out except for the actual data. In other words, it is recommended to use calloc (or variants of it) instead of malloc for allocation.","title":"User allocation"},{"location":"ft2-user_allocation.html#user-allocation","text":"","title":"User allocation"},{"location":"ft2-user_allocation.html#synopsis","text":"FreeType assumes that structures allocated by the user and passed as arguments are zeroed out except for the actual data. In other words, it is recommended to use calloc (or variants of it) instead of malloc for allocation.","title":"Synopsis"},{"location":"ft2-winfnt_fonts.html","text":"FreeType \u00bb Docs \u00bb Format-Specific API \u00bb Window FNT Files Window FNT Files \u00b6 Synopsis \u00b6 This section contains the declaration of Windows FNT-specific functions. FT_WinFNT_ID_XXX \u00b6 Defined in FT_WINFONTS_H (freetype/ftwinfnt.h). # define FT_WinFNT_ID_CP1252 0 # define FT_WinFNT_ID_DEFAULT 1 # define FT_WinFNT_ID_SYMBOL 2 # define FT_WinFNT_ID_MAC 77 # define FT_WinFNT_ID_CP932 128 # define FT_WinFNT_ID_CP949 129 # define FT_WinFNT_ID_CP1361 130 # define FT_WinFNT_ID_CP936 134 # define FT_WinFNT_ID_CP950 136 # define FT_WinFNT_ID_CP1253 161 # define FT_WinFNT_ID_CP1254 162 # define FT_WinFNT_ID_CP1258 163 # define FT_WinFNT_ID_CP1255 177 # define FT_WinFNT_ID_CP1256 178 # define FT_WinFNT_ID_CP1257 186 # define FT_WinFNT_ID_CP1251 204 # define FT_WinFNT_ID_CP874 222 # define FT_WinFNT_ID_CP1250 238 # define FT_WinFNT_ID_OEM 255 A list of valid values for the charset byte in FT_WinFNT_HeaderRec . Exact mapping tables for the various \u2018cpXXXX\u2019 encodings (except for \u2018cp1361\u2019) can be found at \u2018 ftp://ftp.unicode.org/Public/ \u2019 in the MAPPINGS/VENDORS/MICSFT/WINDOWS subdirectory. \u2018cp1361\u2019 is roughly a superset of MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT . values FT_WinFNT_ID_DEFAULT This is used for font enumeration and font creation as a \u2018don't care\u2019 value. Valid font files don't contain this value. When querying for information about the character set of the font that is currently selected into a specified device context, this return value (of the related Windows API) simply denotes failure. FT_WinFNT_ID_SYMBOL There is no known mapping table available. FT_WinFNT_ID_MAC Mac Roman encoding. FT_WinFNT_ID_OEM From Michael Poettgen : The \u2018Windows Font Mapping\u2019 article says that FT_WinFNT_ID_OEM is used for the charset of vector fonts, like modern.fon , roman.fon , and script.fon on Windows. The \u2018CreateFont\u2019 documentation says: The FT_WinFNT_ID_OEM value specifies a character set that is operating-system dependent. The \u2018IFIMETRICS\u2019 documentation from the \u2018Windows Driver Development Kit\u2019 says: This font supports an OEM-specific character set. The OEM character set is system dependent. In general OEM, as opposed to ANSI (i.e., \u2018cp1252\u2019), denotes the second default codepage that most international versions of Windows have. It is one of the OEM codepages from https://docs.microsoft.com/en-us/windows/desktop/intl/code-page-identifiers , and is used for the \u2018DOS boxes\u2019, to support legacy applications. A German Windows version for example usually uses ANSI codepage 1252 and OEM codepage 850. FT_WinFNT_ID_CP874 A superset of Thai TIS 620 and ISO 8859-11. FT_WinFNT_ID_CP932 A superset of Japanese Shift-JIS (with minor deviations). FT_WinFNT_ID_CP936 A superset of simplified Chinese GB 2312-1980 (with different ordering and minor deviations). FT_WinFNT_ID_CP949 A superset of Korean Hangul KS C 5601-1987 (with different ordering and minor deviations). FT_WinFNT_ID_CP950 A superset of traditional Chinese Big 5 ETen (with different ordering and minor deviations). FT_WinFNT_ID_CP1250 A superset of East European ISO 8859-2 (with slightly different ordering). FT_WinFNT_ID_CP1251 A superset of Russian ISO 8859-5 (with different ordering). FT_WinFNT_ID_CP1252 ANSI encoding. A superset of ISO 8859-1. FT_WinFNT_ID_CP1253 A superset of Greek ISO 8859-7 (with minor modifications). FT_WinFNT_ID_CP1254 A superset of Turkish ISO 8859-9. FT_WinFNT_ID_CP1255 A superset of Hebrew ISO 8859-8 (with some modifications). FT_WinFNT_ID_CP1256 A superset of Arabic ISO 8859-6 (with different ordering). FT_WinFNT_ID_CP1257 A superset of Baltic ISO 8859-13 (with some deviations). FT_WinFNT_ID_CP1258 For Vietnamese. This encoding doesn't cover all necessary characters. FT_WinFNT_ID_CP1361 Korean (Johab). FT_WinFNT_HeaderRec \u00b6 Defined in FT_WINFONTS_H (freetype/ftwinfnt.h). typedef struct FT_WinFNT_HeaderRec_ { FT_UShort version; FT_ULong file_size; FT_Byte copyright[60]; FT_UShort file_type; FT_UShort nominal_point_size; FT_UShort vertical_resolution; FT_UShort horizontal_resolution; FT_UShort ascent; FT_UShort internal_leading; FT_UShort external_leading; FT_Byte italic; FT_Byte underline; FT_Byte strike_out; FT_UShort weight; FT_Byte charset; FT_UShort pixel_width; FT_UShort pixel_height; FT_Byte pitch_and_family; FT_UShort avg_width; FT_UShort max_width; FT_Byte first_char; FT_Byte last_char; FT_Byte default_char; FT_Byte break_char; FT_UShort bytes_per_row; FT_ULong device_offset; FT_ULong face_name_offset; FT_ULong bits_pointer; FT_ULong bits_offset; FT_Byte reserved; FT_ULong flags; FT_UShort A_space; FT_UShort B_space; FT_UShort C_space; FT_UShort color_table_offset; FT_ULong reserved1[4]; } FT_WinFNT_HeaderRec ; Windows FNT Header info. FT_WinFNT_Header \u00b6 Defined in FT_WINFONTS_H (freetype/ftwinfnt.h). typedef struct FT_WinFNT_HeaderRec_* FT_WinFNT_Header ; A handle to an FT_WinFNT_HeaderRec structure. FT_Get_WinFNT_Header \u00b6 Defined in FT_WINFONTS_H (freetype/ftwinfnt.h). FT_EXPORT( FT_Error ) FT_Get_WinFNT_Header ( FT_Face face, FT_WinFNT_HeaderRec *aheader ); Retrieve a Windows FNT font info header. input face A handle to the input face. output aheader The WinFNT header. return FreeType error code. 0 means success. note This function only works with Windows FNT faces, returning an error otherwise.","title":"Window FNT Files"},{"location":"ft2-winfnt_fonts.html#window-fnt-files","text":"","title":"Window FNT Files"},{"location":"ft2-winfnt_fonts.html#synopsis","text":"This section contains the declaration of Windows FNT-specific functions.","title":"Synopsis"},{"location":"ft2-winfnt_fonts.html#ft_winfnt_id_xxx","text":"Defined in FT_WINFONTS_H (freetype/ftwinfnt.h). # define FT_WinFNT_ID_CP1252 0 # define FT_WinFNT_ID_DEFAULT 1 # define FT_WinFNT_ID_SYMBOL 2 # define FT_WinFNT_ID_MAC 77 # define FT_WinFNT_ID_CP932 128 # define FT_WinFNT_ID_CP949 129 # define FT_WinFNT_ID_CP1361 130 # define FT_WinFNT_ID_CP936 134 # define FT_WinFNT_ID_CP950 136 # define FT_WinFNT_ID_CP1253 161 # define FT_WinFNT_ID_CP1254 162 # define FT_WinFNT_ID_CP1258 163 # define FT_WinFNT_ID_CP1255 177 # define FT_WinFNT_ID_CP1256 178 # define FT_WinFNT_ID_CP1257 186 # define FT_WinFNT_ID_CP1251 204 # define FT_WinFNT_ID_CP874 222 # define FT_WinFNT_ID_CP1250 238 # define FT_WinFNT_ID_OEM 255 A list of valid values for the charset byte in FT_WinFNT_HeaderRec . Exact mapping tables for the various \u2018cpXXXX\u2019 encodings (except for \u2018cp1361\u2019) can be found at \u2018 ftp://ftp.unicode.org/Public/ \u2019 in the MAPPINGS/VENDORS/MICSFT/WINDOWS subdirectory. \u2018cp1361\u2019 is roughly a superset of MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT .","title":"FT_WinFNT_ID_XXX"},{"location":"ft2-winfnt_fonts.html#ft_winfnt_headerrec","text":"Defined in FT_WINFONTS_H (freetype/ftwinfnt.h). typedef struct FT_WinFNT_HeaderRec_ { FT_UShort version; FT_ULong file_size; FT_Byte copyright[60]; FT_UShort file_type; FT_UShort nominal_point_size; FT_UShort vertical_resolution; FT_UShort horizontal_resolution; FT_UShort ascent; FT_UShort internal_leading; FT_UShort external_leading; FT_Byte italic; FT_Byte underline; FT_Byte strike_out; FT_UShort weight; FT_Byte charset; FT_UShort pixel_width; FT_UShort pixel_height; FT_Byte pitch_and_family; FT_UShort avg_width; FT_UShort max_width; FT_Byte first_char; FT_Byte last_char; FT_Byte default_char; FT_Byte break_char; FT_UShort bytes_per_row; FT_ULong device_offset; FT_ULong face_name_offset; FT_ULong bits_pointer; FT_ULong bits_offset; FT_Byte reserved; FT_ULong flags; FT_UShort A_space; FT_UShort B_space; FT_UShort C_space; FT_UShort color_table_offset; FT_ULong reserved1[4]; } FT_WinFNT_HeaderRec ; Windows FNT Header info.","title":"FT_WinFNT_HeaderRec"},{"location":"ft2-winfnt_fonts.html#ft_winfnt_header","text":"Defined in FT_WINFONTS_H (freetype/ftwinfnt.h). typedef struct FT_WinFNT_HeaderRec_* FT_WinFNT_Header ; A handle to an FT_WinFNT_HeaderRec structure.","title":"FT_WinFNT_Header"},{"location":"ft2-winfnt_fonts.html#ft_get_winfnt_header","text":"Defined in FT_WINFONTS_H (freetype/ftwinfnt.h). FT_EXPORT( FT_Error ) FT_Get_WinFNT_Header ( FT_Face face, FT_WinFNT_HeaderRec *aheader ); Retrieve a Windows FNT font info header.","title":"FT_Get_WinFNT_Header"}]} \ No newline at end of file diff --git a/modules/freetype2/docs/reference/sitemap.xml b/modules/freetype2/docs/reference/sitemap.xml new file mode 100644 index 0000000000..0f8724efd9 --- /dev/null +++ b/modules/freetype2/docs/reference/sitemap.xml @@ -0,0 +1,3 @@ + + + \ No newline at end of file diff --git a/modules/freetype2/docs/reference/sitemap.xml.gz b/modules/freetype2/docs/reference/sitemap.xml.gz new file mode 100644 index 0000000000..845a15ac35 Binary files /dev/null and b/modules/freetype2/docs/reference/sitemap.xml.gz differ diff --git a/modules/freetype2/docs/reference/stylesheets/extra.css b/modules/freetype2/docs/reference/stylesheets/extra.css new file mode 100644 index 0000000000..5d999ed5d2 --- /dev/null +++ b/modules/freetype2/docs/reference/stylesheets/extra.css @@ -0,0 +1,177 @@ +/* Body and page */ +.md-grid { + max-width: 90%; +} +p { + text-align: justify; +} + +/* code blocks */ +pre.colored { + color: blue; +} +pre>code { + font-family: monospace; + background-color: #D6E8FF; + padding: 2ex 0 2ex 1%; + overflow-x:auto; +} +span.keyword { + font-family: monospace; + text-align: left; + white-space: pre; + color: #d73a49; +} +.md-typeset pre>code { + white-space: pre; +} +/* H4 Heading */ +h4 { + background-color: #EEEEFF; + font-size: medium; + font-style: oblique; + font-weight: bold; + padding: 0.3em 0 0.3em 1%; +} + +/* Fields table */ +table.fields { + width: 90%; + margin: 1.5ex 0 1.5ex 10%; +} +table.fields td.val { + font-weight: bold; + text-align: right; + width: 30%; + vertical-align: baseline; + padding: 1em 1em 0 0; +} +table.fields td.desc { + vertical-align: baseline; + padding: 1ex 0 0 1em; +} +table.fields td.desc p:first-child { + margin: 0; +} + +table.fields td.desc p { + margin: 1.5ex 0 0 0; +} + +/* Define 'long' tables */ +table.long { + display: block; + width: 93%; +} +table.long thead, +table.long tbody, +table.long th, +table.long td, +table.long tr { + display: block; +} +/* Hide table headers (but not display: none; +, for accessibility) */ +table.long thead tr { + position: absolute; + top: -9999px; + left: -9999px; +} +table.long tr { + border: 0; +} +table.long { + margin: 1.5ex 3% 1.5ex 3%; +} +table.long td.val { + text-align: left; +} +table.long td { + /* Behave like a "row" */ + border: none; + border-bottom: 0; + position: relative; + padding-left: 50%; +} +table.long td:before { + /* Now like a table header */ + position: absolute; + /* Top/left values mimic padding */ + top: 6px; + left: 6px; + width: 45%; + padding-right: 10px; + white-space: nowrap; +} +/* End 'long' table definition */ + +/* toc table */ +table.toc { + width: 95%; + margin: 1.5ex 0 1.5ex 5%; +} +table.toc td.link { + width: 30%; + text-align: right; + vertical-align: baseline; + padding: 1ex 1em 1ex 0; +} +table.toc td.desc { + vertical-align: baseline; + padding: 1ex 0 1ex 1em; + text-align: left; +} +table.toc td.desc p:first-child { + margin: 0; + text-align: left; +} +table.toc td.desc p { + margin: 1.5ex 0 0 0; + text-align: left; +} +div.timestamp { + font-size: small; +} + +/* Change table layout for smaller screens. This query will take effect for any screen smaller than + 760px and also iPads specifically. */ +@media only screen and (max-width: 760px), (min-device-width: 768px) and (max-device-width: 1024px) { + /* Force table to not be like tables anymore */ + table, thead, tbody, th, td, tr { + display: block; + } + /* Hide table headers (but not display: none; + , for accessibility) */ + thead tr { + position: absolute; + top: -9999px; + left: -9999px; + } + tr { + border: 0; + } + table.fields { + width: 93%; + margin: 1.5ex 3% 1.5ex 3%; + } + table.fields td.val { + text-align: left; + } + td { + /* Behave like a "row" */ + border: none; + border-bottom: 0; + position: relative; + padding-left: 50%; + } + td:before { + /* Now like a table header */ + position: absolute; + /* Top/left values mimic padding */ + top: 6px; + left: 6px; + width: 45%; + padding-right: 10px; + white-space: nowrap; + } +} -- cgit v1.2.3