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openlayers/lib/OpenLayers/Layer/Marker.js

71 lines
1.7 KiB
JavaScript

/**
* @class
*/
OpenLayers.Layer.Marker = Class.create();
OpenLayers.Layer.Marker.prototype =
Object.extend( new OpenLayers.Layer(), {
/** internal marker list
* @type Array(OpenLayers.Marker) */
markers: null,
/**
* @constructor
*
* @param {String} name
*/
initialize: function(name) {
OpenLayers.Layer.prototype.initialize.apply(this, arguments);
this.markers = new Array();
},
/**
* @param {OpenLayers.Bounds} bounds
* @param {Boolean} zoomChanged
*/
moveTo: function(bounds, zoomChanged) {
if (zoomChanged) {
this.redraw();
}
},
/**
* @param {OpenLayers.Marker} marker
*/
addMarker: function(marker) {
this.markers.append(marker);
if (this.map && this.map.getExtent()) {
this.drawMarker(marker);
}
},
/** clear all the marker div's from the layer and then redraw all of them.
* Use the map to recalculate new placement of markers.
*/
redraw: function() {
for(i=0; i < this.markers.length; i++) {
this.drawMarker(this.markers[i]);
}
},
/** Calculate the screen pixel location for the marker, create it, and
* add it to the layer's div
*
* @private
*
* @param {OpenLayers.Marker} marker
*/
drawMarker: function(marker) {
var px = this.map.getPixelFromLonLat(marker.lonlat);
var markerDiv = marker.draw(px);
if (marker.drawn != 1) {
this.div.appendChild(markerDiv);
marker.drawn = 1;
}
},
/** @final @type String */
CLASS_NAME: "OpenLayers.Layer.Marker"
});