--- /dev/null
+/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
+ * See http://svn.openlayers.org/trunk/openlayers/license.txt for the full
+ * text of the license. */
+// @require: OpenLayers/Layer.js
+
+// load Google map control script
+// this key was generated for: http://openlayers.python-hosting.com/testing/euzuro/
+document.write("<script src='http://maps.google.com/maps?file=api&v=2&key=ABQIAAAAmQ3udCHPQVB_9T_edFZ7YRRRlP-tOiFgaSzksg_0w1dphL9c5BTfdJMKT91b0UJGibNcWEM0Q5-O1w'></script>");
+
+/**
+ * @class
+ */
+OpenLayers.Layer.Google = Class.create();
+OpenLayers.Layer.Google.prototype = Object.extend( new OpenLayers.Layer(), {
+
+ /** @type Boolean */
+ viewPortLayer: true,
+
+ /** @type GMap2 gmap stores the Google Map element */
+ gmap:null,
+
+ /** @type Boolean */
+ dragging:false,
+
+ /**
+ * @constructor
+ *
+ * @param {String} name
+ */
+ initialize: function(name) {
+ OpenLayers.Layer.prototype.initialize.apply(this, [name]);
+ },
+
+ /**
+ * @param {OpenLayers.Map} map
+ */
+ setMap:function(map) {
+ OpenLayers.Layer.prototype.setMap.apply(this, arguments);
+
+ // once our layer has been added to the map, we can create the vemap
+ this.map.events.register("addlayer", this, this.loadGMap);
+ },
+
+ /** Google layer is always a base class.
+ * @type Boolean
+ */
+ isBaseLayer: function() {
+ return true;
+ },
+
+ /**
+ * @param {OpenLayers.Bounds} bounds
+ * @param {int} zoomChanged
+ */
+ moveTo:function(bounds,zoomChanged) {
+
+ if ((this.gmap != null) && (!this.dragging)) {
+
+ var olCenter = this.map.getCenter();
+ var gCenter = this.getGMapCenter();
+
+ var olZoom = this.map.getZoom();
+ var gZoom = this.gmap.getZoom();
+
+ if ((!olCenter.equals(gCenter)) || ((olZoom +1) != gZoom)) {
+ this.gmap.setCenter(new GLatLng(olCenter.lat, olCenter.lon),
+ olZoom + 1);
+ }
+ }
+ },
+
+ /**
+ *
+ */
+ loadGMap:function() {
+ // create div and set to same size as map
+ var gDiv = OpenLayers.Util.createDiv(this.name);
+ var sz = this.map.getSize();
+ gDiv.style.width = sz.w;
+ gDiv.style.height = sz.h;
+ this.div.appendChild(gDiv);
+
+ // create GMap, hide nav controls
+ this.gmap = new GMap2(this.div);
+ this.moveTo();
+
+ // catch pans and zooms from GMap
+ GEvent.addListener(this.gmap,
+ "moveend",
+ this.catchPanZoom.bindAsEventListener(this));
+
+
+ // attach to the drag start and end and we´ll set a flag so that
+ // we dont get recursivity. this is because the events fall through
+ // the gmaps div and into the main layer div
+ GEvent.addListener(this.gmap,
+ "dragstart",
+ this.dragStart.bindAsEventListener(this));
+
+ GEvent.addListener(this.gmap,
+ "dragend",
+ this.dragEnd.bindAsEventListener(this));
+
+ },
+
+ /**
+ * @private
+ */
+ dragStart: function() {
+ this.dragging = true;
+ },
+
+ /**
+ * @private
+ */
+ dragEnd: function() {
+ this.dragging = false;
+ },
+
+ /**
+ * @private
+ *
+ * @param {event} e
+ */
+ catchPanZoom: function(e) {
+ var olCenter = this.getGMapCenter();
+ var gZoom = this.gmap.getZoom();
+
+ this.map.setCenter(olCenter, gZoom - 1);
+
+ },
+
+ /**
+ * @private
+ *
+ * @returns An OpenLayers.LonLat with the center of the gmap, or null if
+ * the GMap has not been centered yet
+ * @type OpenLayers.LonLat
+ */
+ getGMapCenter:function() {
+ var olCenter = null;
+ var gCenter = this.gmap.getCenter();
+ if (gCenter != null) {
+ olCenter = new OpenLayers.LonLat(gCenter.lng(), gCenter.lat());
+ }
+ return olCenter;
+ },
+
+
+ /** @final @type String */
+ CLASS_NAME: "OpenLayers.Layer.Google"
+});