#529 give tiles gutters - all layers that use Tile.Image must now look after layer.imageSize and layer.imageOffset - this is handled by layer.setTileSize - for untiled layers, setTileSize must be defined by the subclass - gutters are currently supported in Layer.Mapserver and Layer.WMS

git-svn-id: http://svn.openlayers.org/trunk/openlayers@2979 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/WMS.js

@@ -24,7 +24,7 @@ OpenLayers.Layer.WMS.prototype =
                      },
     
     reproject: true,
-
+ 
     /**
     * @constructor
     *
@@ -93,10 +93,13 @@ OpenLayers.Layer.WMS.prototype =
      * @type String
      */
     getURL: function (bounds) {
+        if(this.gutter) {
+            bounds = this.adjustBoundsByGutter(bounds);
+        }
         return this.getFullRequestString(
                      {BBOX:bounds.toBBOX(),
-                      WIDTH:this.tileSize.w,
-                      HEIGHT:this.tileSize.h});
+                      WIDTH:this.imageSize.w,
+                      HEIGHT:this.imageSize.h});
     },
 
     /**
@@ -109,7 +112,7 @@ OpenLayers.Layer.WMS.prototype =
     * @type OpenLayers.Tile.Image
     */
     addTile:function(bounds,position) {
-        url = this.getURL(bounds);
+        var url = this.getURL(bounds);
         return new OpenLayers.Tile.Image(this, position, bounds, 
                                              url, this.tileSize);
     },