Added a position property to Control, which allows us to specify a default

location for each Control class, and saves us from *having* to supply a pixel
position to the map.addControl() method -- the sensible default will tend to be
used instead.


git-svn-id: http://svn.openlayers.org/trunk/openlayers@269 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Control.js

@@ -11,6 +11,9 @@ OpenLayers.Control.prototype = {
     /** @type DOMElement */
     div: null,
 
+    /** @type OpenLayers.Pixel */
+    position: null,
+
     /**
     * @constructor
     */
@@ -27,7 +30,10 @@ OpenLayers.Control.prototype = {
         if (this.div == null) {
             this.div = OpenLayers.Util.createDiv();
         }
-        this.moveTo(px);        
+        if (px != null) {
+            this.position = px.copyOf();
+        }
+        this.moveTo(this.position);        
         return this.div;
     },