143 lines
3.3 KiB
JavaScript
143 lines
3.3 KiB
JavaScript
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//>>built
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define("dojox/geo/openlayers/GfxLayer", ["dojo/_base/kernel",
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"dojo/_base/declare",
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"dojo/_base/connect",
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"dojo/_base/html",
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"dojox/gfx",
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"dojox/gfx/_base",
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"dojox/gfx/shape",
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"dojox/gfx/path",
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"dojox/gfx/matrix",
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"dojox/geo/openlayers/Feature",
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"dojox/geo/openlayers/Layer"], function(dojo, declare, connect, html, gfx, gbase, shape,
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path, matrix, Feature, Layer){
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/*=====
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var Layer = dojox.geo.openlayers.Layer;
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=====*/
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return declare("dojox.geo.openlayers.GfxLayer", Layer, {
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// summary:
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// A layer dedicated to render dojox.geo.openlayers.GeometryFeature
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// description:
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// A layer class for rendering geometries as dojox.gfx.Shape objects.
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// This layer class accepts Features which encapsulates graphic objects to be added to the map.
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// All objects should be added to this group.
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// tags:
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// private
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_viewport : null,
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constructor : function(name, options){
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// summary:
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// Constructs a new GFX layer.
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var s = dojox.gfx.createSurface(this.olLayer.div, 100, 100);
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this._surface = s;
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var vp;
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if (options && options.viewport)
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vp = options.viewport;
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else
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vp = s.createGroup();
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this.setViewport(vp);
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dojo.connect(this.olLayer, "onMapResize", this, "onMapResize");
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this.olLayer.getDataExtent = this.getDataExtent;
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},
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getViewport : function(){
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// summary:
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// Gets the viewport
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// tags:
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// internal
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return this._viewport;
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},
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setViewport : function(g){
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// summary:
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// Sets the viewport
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// g: dojox.gfx.Group
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// tags:
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// internal
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if (this._viewport)
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this._viewport.removeShape();
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this._viewport = g;
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this._surface.add(g);
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},
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onMapResize : function(){
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// summary:
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// Called when map is resized.
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// tag:
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// protected
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this._surfaceSize();
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},
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setMap : function(map){
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// summary:
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// Sets the map for this layer.
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// tag:
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// protected
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this.inherited(arguments);
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this._surfaceSize();
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},
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getDataExtent : function(){
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// summary:
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// Get data extent
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// tags:
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// private
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var ret = this._surface.getDimensions();
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return ret;
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},
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getSurface : function(){
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// summary:
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// Get the underlying dojox.gfx.Surface
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// returns: dojox.gfx.Surface
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// The dojox.gfx.Surface this layer uses to draw its GFX rendering.
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return this._surface;
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},
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_surfaceSize : function(){
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// summary:
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// Recomputes the surface size when being resized.
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// tags:
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// private
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var s = this.olLayer.map.getSize();
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this._surface.setDimensions(s.w, s.h);
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},
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moveTo : function(event){
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// summary:
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// Called when this layer is moved or zoommed.
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// event:
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// The event
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var s = dojo.style(this.olLayer.map.layerContainerDiv);
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var left = parseInt(s.left);
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var top = parseInt(s.top);
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if (event.zoomChanged || left || top) {
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var d = this.olLayer.div;
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dojo.style(d, {
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left : -left + "px",
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top : -top + "px"
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});
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if (this._features == null)
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return;
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var vp = this.getViewport();
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vp.setTransform(matrix.translate(left, top));
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this.inherited(arguments);
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}
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},
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added : function(){
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// summary:
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// Called when added to a map.
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this.inherited(arguments);
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this._surfaceSize();
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}
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});
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});
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