replace Pixel argument with simple object (Map.getLonLatFromViewPortPx)

lib/OpenLayers/Layer/FixedZoomLevels.js

@@ -213,25 +213,19 @@ OpenLayers.Layer.FixedZoomLevels = OpenLayers.Class({
      *                       bounds of the current viewPort.
      */
     getExtent: function () {
-        var extent = null;
-        
-        
         var size = this.map.getSize();
+        var tl = this.getLonLatFromViewPortPx({
+            x: 0, y: 0
+        });
+        var br = this.getLonLatFromViewPortPx({
+            x: size.w, y: size.h
+        });
         
-        var tlPx = new OpenLayers.Pixel(0,0);
+        if ((tl != null) && (br != null)) {
-        var tlLL = this.getLonLatFromViewPortPx(tlPx);
+            return new OpenLayers.Bounds(tl.lon, br.lat, br.lon, tl.lat);
-
+        } else {
-        var brPx = new OpenLayers.Pixel(size.w, size.h);
+            return null;
-        var brLL = this.getLonLatFromViewPortPx(brPx);
-        
-        if ((tlLL != null) && (brLL != null)) {
-            extent = new OpenLayers.Bounds(tlLL.lon, 
-                                       brLL.lat, 
-                                       brLL.lon, 
-                                       tlLL.lat);
         }
-
-        return extent;
     },
 
     /**

lib/OpenLayers/Map.js

@@ -1517,9 +1517,10 @@ OpenLayers.Map = OpenLayers.Class({
      */
     getCachedCenter: function() {
         if (!this.center && this.size) {
-            this.center = this.getLonLatFromViewPortPx(
+            this.center = this.getLonLatFromViewPortPx({
-                new OpenLayers.Pixel(this.size.w / 2, this.size.h / 2)
+                x: this.size.w / 2,
-            );
+                y: this.size.h / 2
+            });
         }
         return this.center;
     },