move 'image' member from marker down to Icon.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@446 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Icon.js

@@ -15,6 +15,9 @@ OpenLayers.Icon.prototype = {
     * @type OpenLayers.Pixel */
     offset: null,    
     
+    /** @type DOMElement */
+    image: null,
+    
     /** 
     * @constructor
     *
@@ -27,6 +30,13 @@ OpenLayers.Icon.prototype = {
         this.url = url;
         this.offset = (offset) ? offset 
                                : new OpenLayers.Pixel(0,0); 
+
+        this.image = OpenLayers.Util.createAlphaImageDiv(null,
+                                                 null,
+                                                 this.size,
+                                                 this.url,
+                                                 "absolute"
+                                                );
     },
 
     /** 
@@ -37,6 +47,28 @@ OpenLayers.Icon.prototype = {
         return new OpenLayers.Icon(this.size, this.url, this.offset);
     },
     
+    /** 
+    * @param {OpenLayers.Pixel} px
+    * 
+    * @return A new DOM Image of this icon set at the location passed-in
+    * @type DOMElement
+    */
+    draw: function(px) {
+        this.moveTo(px);
+        return this.image;
+    }, 
+
+    /**
+    * @param {OpenLayers.Pixel} px
+    */
+    moveTo: function (px) {
+        if ((px != null) && (this.image != null)) {
+            offsetPx = px.offset(this.offset);
+            this.image.style.left = offsetPx.x + "px"; 
+            this.image.style.top = offsetPx.y + "px"
+        }
+    },
+    
     /** @final @type String */
     CLASS_NAME: "OpenLayers.Icon"
 };

lib/OpenLayers/Marker.js

@@ -17,9 +17,6 @@ OpenLayers.Marker.prototype = {
     /** @type OpenLayers.Map */
     map: null,
     
-    /** @type DOMElement */
-    image: null,
-    
     /** 
     * @constructor
     *
@@ -28,16 +25,9 @@ OpenLayers.Marker.prototype = {
     */
     initialize: function(lonlat, icon) {
         this.lonlat = lonlat;
-
         this.icon = (icon) ? icon : OpenLayers.Marker.defaultIcon();
 
-        this.image = OpenLayers.Util.createAlphaImageDiv(null,
-                                                 null,
-                                                 this.icon.size,
-                                                 this.icon.url,
-                                                 "absolute"
-                                                );
-        this.events = new OpenLayers.Events(this, this.image, null);
+        this.events = new OpenLayers.Events(this, this.icon.image, null);
     },
     
     /** 
@@ -48,18 +38,16 @@ OpenLayers.Marker.prototype = {
     * @type DOMElement
     */
     draw: function(px) {
-        this.moveTo(px);
-        return this.image;
+        return this.icon.draw(px);
     }, 
 
     /**
     * @param {OpenLayers.Pixel} px
     */
     moveTo: function (px) {
-        if ((px != null) && (this.image != null)) {
-            this.image.style.top = (px.y + this.icon.offset.y) + "px"
-            this.image.style.left = (px.x + this.icon.offset.x) + "px"; 
-        }
+        if ((px != null) && (this.icon != null)) {
+            this.icon.moveTo(px);
+        }            
     },
 
     /** @final @type String */