84 lines
3.9 KiB
HTML
84 lines
3.9 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>SVGTextContentElement.getRotationOfChar</title>
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<link rel="help" href="https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getRotationOfChar">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<svg id="container" width="800" height="300"></svg>
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<script>
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function createSVGElement(localPart, attributes, textOrElement) {
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const element = document.createElementNS('http://www.w3.org/2000/svg', localPart);
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for (let name in attributes) {
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element.setAttribute(name, attributes[name]);
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}
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if (typeof(textOrElement) == 'string')
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element.textContent = textOrElement;
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else if (textOrElement instanceof Element)
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element.appendChild(textOrElement);
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else if (textOrElement !== undefined)
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throw new TypeError('The third argument should be a string or an Element');
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return element;
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}
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function normalize(rotation) {
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return rotation - 360 * Math.floor(rotation / 360);
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}
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function normalizedRotation(element, index) {
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return normalize(element.getRotationOfChar(index));
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}
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const container = document.querySelector('#container');
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['horizontal-tb', 'vertical-rl', 'vertical-lr', 'sideways-rl', 'sideways-lr'].forEach(mode => {
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const isHorizontal = mode == 'horizontal-tb';
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const isVertical = mode == 'vertical-rl' || mode == 'vertical-lr';
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const sidewaysDelta = 90 * ((mode == 'sideways-rl') - (mode == 'sideways-lr'));
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container.style.writingMode = mode;
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test(() => {
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container.style.textOrientation = 'mixed';
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const element = container.appendChild(createSVGElement('text', {}, ' M月X'));
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assert_equals(element.getRotationOfChar(0), isVertical ? 90 : sidewaysDelta, 'M');
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assert_equals(element.getRotationOfChar(1), sidewaysDelta, '月');
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assert_equals(element.getRotationOfChar(2), isVertical ? 90 : sidewaysDelta, 'X');
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}, `'text-orientation: mixed' - ${mode}`);
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test(() => {
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container.style.textOrientation = 'upright';
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const element = container.appendChild(createSVGElement('text', {}, 'T火'));
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assert_equals(element.getRotationOfChar(0), sidewaysDelta, 'T');
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assert_equals(element.getRotationOfChar(1), sidewaysDelta, '火');
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}, `'text-orientation: upright' - ${mode}`);
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test(() => {
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container.style.textOrientation = 'sideways';
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const element = container.appendChild(createSVGElement('text', {}, 'W水'));
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assert_equals(element.getRotationOfChar(0), isVertical ? 90 : sidewaysDelta, 'W');
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assert_equals(element.getRotationOfChar(1), isVertical ? 90 : sidewaysDelta, '水');
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}, `'text-orientation: sideways' - ${mode}`);
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test(() => {
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container.style.textOrientation = 'mixed';
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const element = container.appendChild(
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createSVGElement('text', {rotate: '0 180.5 360 365 -10'}, 't木cde'));
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const shift = isHorizontal ? 0 : 90 * (mode == 'sideways-rl' || isVertical) + 270 * (mode == 'sideways-lr');
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assert_equals(normalizedRotation(element, 0), 0 + shift, 't');
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assert_equals(normalizedRotation(element, 1), 180.5 + sidewaysDelta, '木');
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assert_equals(normalizedRotation(element, 2), 0 + shift, 'c');
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assert_equals(normalizedRotation(element, 3), 5 + shift, 'd');
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assert_equals(normalizedRotation(element, 4), normalize(350 + shift), 'e');
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}, `Rotation attribute - ${mode}`);
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test(() => {
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container.style.textOrientation = 'mixed';
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container.appendChild(createSVGElement('path', {id: 'path1', d: 'M 40 40 L 200 200'}));
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const element = container.appendChild(
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createSVGElement('text', {rotate: '0 0 25'},
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createSVGElement('textPath', {href: '#path1'}, 'F金r')));
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const shift = (mode == 'sideways-lr') ? 180 : 0;
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assert_equals(normalizedRotation(element, 0), 45 + shift, 'F');
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assert_equals(normalizedRotation(element, 1), isVertical ? 315 : 45 + shift, '金');
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assert_equals(normalizedRotation(element, 2), 45 + 25 + shift, 'r');
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}, `<textPath> - ${mode}`);
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});
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</script>
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