06cbeb2f11
conversions to/from lonlat/px need to take into account the offset of the layersContainerDiv. I have introduced the following functions for converting between layer and screen pixel values: getLayerPxFromScreenPx() and getScreenPxFromLayerPx() they are pretty self-explanitory. I then renamed: getPixelFromLonLat() and getLonLatFromPixel() to: getScreenPxFromLonLat() and getLonLatFroScreenmPx() and added: getLayerPxFromLonLat() and getLonLatFromLayerPx() updates were made throughout the code, demos, and tests so everything should still run smoothly. -e- git-svn-id: http://svn.openlayers.org/trunk/openlayers@329 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
72 lines
1.7 KiB
JavaScript
72 lines
1.7 KiB
JavaScript
// @require: OpenLayers/Layer.js
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/**
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* @class
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*/
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OpenLayers.Layer.Markers = Class.create();
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OpenLayers.Layer.Markers.prototype =
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Object.extend( new OpenLayers.Layer(), {
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/** internal marker list
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* @type Array(OpenLayers.Marker) */
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markers: null,
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/**
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* @constructor
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*
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* @param {String} name
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*/
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initialize: function(name) {
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OpenLayers.Layer.prototype.initialize.apply(this, arguments);
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this.markers = new Array();
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},
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/**
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* @param {OpenLayers.Bounds} bounds
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* @param {Boolean} zoomChanged
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*/
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moveTo: function(bounds, zoomChanged) {
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if (zoomChanged) {
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this.redraw();
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}
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},
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/**
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* @param {OpenLayers.Marker} marker
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*/
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addMarker: function(marker) {
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this.markers.append(marker);
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if (this.map && this.map.getExtent()) {
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this.drawMarker(marker);
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}
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},
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/** clear all the marker div's from the layer and then redraw all of them.
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* Use the map to recalculate new placement of markers.
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*/
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redraw: function() {
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for(i=0; i < this.markers.length; i++) {
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this.drawMarker(this.markers[i]);
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}
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},
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/** Calculate the screen pixel location for the marker, create it, and
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* add it to the layer's div
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*
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* @private
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*
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* @param {OpenLayers.Marker} marker
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*/
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drawMarker: function(marker) {
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var px = this.map.getLayerPxFromLonLat(marker.lonlat);
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var markerImg = marker.draw(px);
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if (!marker.drawn) {
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this.div.appendChild(markerImg);
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marker.drawn = true;
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}
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},
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/** @final @type String */
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CLASS_NAME: "OpenLayers.Layer.Markers"
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});
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