summaryrefslogtreecommitdiffstats
path: root/debian/missing-sources/leaflet.js/layer/vector/Renderer.js
diff options
context:
space:
mode:
Diffstat (limited to 'debian/missing-sources/leaflet.js/layer/vector/Renderer.js')
-rw-r--r--debian/missing-sources/leaflet.js/layer/vector/Renderer.js140
1 files changed, 140 insertions, 0 deletions
diff --git a/debian/missing-sources/leaflet.js/layer/vector/Renderer.js b/debian/missing-sources/leaflet.js/layer/vector/Renderer.js
new file mode 100644
index 0000000..424a179
--- /dev/null
+++ b/debian/missing-sources/leaflet.js/layer/vector/Renderer.js
@@ -0,0 +1,140 @@
+import {Layer} from '../Layer';
+import * as DomUtil from '../../dom/DomUtil';
+import * as Util from '../../core/Util';
+import * as Browser from '../../core/Browser';
+import {Bounds} from '../../geometry/Bounds';
+
+
+
+/*
+ * @class Renderer
+ * @inherits Layer
+ * @aka L.Renderer
+ *
+ * Base class for vector renderer implementations (`SVG`, `Canvas`). Handles the
+ * DOM container of the renderer, its bounds, and its zoom animation.
+ *
+ * A `Renderer` works as an implicit layer group for all `Path`s - the renderer
+ * itself can be added or removed to the map. All paths use a renderer, which can
+ * be implicit (the map will decide the type of renderer and use it automatically)
+ * or explicit (using the [`renderer`](#path-renderer) option of the path).
+ *
+ * Do not use this class directly, use `SVG` and `Canvas` instead.
+ *
+ * @event update: Event
+ * Fired when the renderer updates its bounds, center and zoom, for example when
+ * its map has moved
+ */
+
+export var Renderer = Layer.extend({
+
+ // @section
+ // @aka Renderer options
+ options: {
+ // @option padding: Number = 0.1
+ // How much to extend the clip area around the map view (relative to its size)
+ // e.g. 0.1 would be 10% of map view in each direction
+ padding: 0.1,
+
+ // @option tolerance: Number = 0
+ // How much to extend click tolerance round a path/object on the map
+ tolerance : 0
+ },
+
+ initialize: function (options) {
+ Util.setOptions(this, options);
+ Util.stamp(this);
+ this._layers = this._layers || {};
+ },
+
+ onAdd: function () {
+ if (!this._container) {
+ this._initContainer(); // defined by renderer implementations
+
+ if (this._zoomAnimated) {
+ DomUtil.addClass(this._container, 'leaflet-zoom-animated');
+ }
+ }
+
+ this.getPane().appendChild(this._container);
+ this._update();
+ this.on('update', this._updatePaths, this);
+ },
+
+ onRemove: function () {
+ this.off('update', this._updatePaths, this);
+ this._destroyContainer();
+ },
+
+ getEvents: function () {
+ var events = {
+ viewreset: this._reset,
+ zoom: this._onZoom,
+ moveend: this._update,
+ zoomend: this._onZoomEnd
+ };
+ if (this._zoomAnimated) {
+ events.zoomanim = this._onAnimZoom;
+ }
+ return events;
+ },
+
+ _onAnimZoom: function (ev) {
+ this._updateTransform(ev.center, ev.zoom);
+ },
+
+ _onZoom: function () {
+ this._updateTransform(this._map.getCenter(), this._map.getZoom());
+ },
+
+ _updateTransform: function (center, zoom) {
+ var scale = this._map.getZoomScale(zoom, this._zoom),
+ position = DomUtil.getPosition(this._container),
+ viewHalf = this._map.getSize().multiplyBy(0.5 + this.options.padding),
+ currentCenterPoint = this._map.project(this._center, zoom),
+ destCenterPoint = this._map.project(center, zoom),
+ centerOffset = destCenterPoint.subtract(currentCenterPoint),
+
+ topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);
+
+ if (Browser.any3d) {
+ DomUtil.setTransform(this._container, topLeftOffset, scale);
+ } else {
+ DomUtil.setPosition(this._container, topLeftOffset);
+ }
+ },
+
+ _reset: function () {
+ this._update();
+ this._updateTransform(this._center, this._zoom);
+
+ for (var id in this._layers) {
+ this._layers[id]._reset();
+ }
+ },
+
+ _onZoomEnd: function () {
+ for (var id in this._layers) {
+ this._layers[id]._project();
+ }
+ },
+
+ _updatePaths: function () {
+ for (var id in this._layers) {
+ this._layers[id]._update();
+ }
+ },
+
+ _update: function () {
+ // Update pixel bounds of renderer container (for positioning/sizing/clipping later)
+ // Subclasses are responsible of firing the 'update' event.
+ var p = this.options.padding,
+ size = this._map.getSize(),
+ min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round();
+
+ this._bounds = new Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());
+
+ this._center = this._map.getCenter();
+ this._zoom = this._map.getZoom();
+ }
+});