openlayers madness

public/lib/OpenLayers/Layer/WMS/Untiled.js

@@ -0,0 +1,97 @@
+/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
+ * See http://svn.openlayers.org/trunk/openlayers/license.txt for the full
+ * text of the license. */
+// @require: OpenLayers/Layer/Grid.js
+/**
+* @class
+*/
+OpenLayers.Layer.WMS.Untiled = Class.create();
+OpenLayers.Layer.WMS.Untiled.prototype = 
+  Object.extend( new OpenLayers.Layer.Grid(), {
+
+    /** @final @type hash */
+    DEFAULT_PARAMS: { service: "WMS",
+                      version: "1.1.1",
+                      request: "GetMap",
+                      styles: "",
+                      exceptions: "application/vnd.ogc.se_inimage",
+                      format: "image/jpeg"
+                     },
+
+    /**
+    * @constructor
+    *
+    * @param {str} name
+    * @param {str} url
+    * @param {hash} params
+    */
+    initialize: function(name, url, params) {
+        var newArguments = new Array();
+        if (arguments.length > 0) {
+            //uppercase params
+            params = OpenLayers.Util.upperCaseObject(params);
+            newArguments.push(name, url, params);
+        }
+        OpenLayers.Layer.Grid.prototype.initialize.apply(this, newArguments);
+        
+        if (arguments.length > 0) {
+            OpenLayers.Util.applyDefaults(
+                           this.params, 
+                           OpenLayers.Util.upperCaseObject(this.DEFAULT_PARAMS)
+                           );
+        }
+    },    
+
+    
+    /** WFS layer is never a base class. 
+     * @type Boolean
+     */
+    isBaseLayer: function() {
+        return (this.params.TRANSPARENT != true);
+    },
+    
+    /**
+    * @param {String} name
+    * @param {hash} params
+    *
+    * @returns A clone of this OpenLayers.Layer.WMS, with the passed-in
+    *          parameters merged in.
+    * @type OpenLayers.Layer.WMS
+    */
+    clone: function (name, params) {
+        var mergedParams = {};
+        Object.extend(mergedParams, this.params);
+        Object.extend(mergedParams, params);
+        var obj = new OpenLayers.Layer.WMS(name, this.url, mergedParams);
+        obj.setTileSize(this.tileSize);
+        return obj;
+    },
+
+    /**
+    * addTile creates a tile, initializes it (via 'draw' in this case), and 
+    * adds it to the layer div. 
+    *
+    * @param {OpenLayers.Bounds} bounds
+    *
+    * @returns The added OpenLayers.Tile.Image
+    * @type OpenLayers.Tile.Image
+    */
+    addTile:function(bounds,position) {
+        url = this.getFullRequestString(
+                     {BBOX:bounds.toBBOX(),
+                      WIDTH:this.map.getSize().w,
+                      HEIGHT:this.map.getSize().h});
+        
+        return new OpenLayers.Tile.Image(this, position, bounds, 
+                                             url, this.map.getSize());
+    },
+    moveTo:function(bounds,zoomChanged, minor) {
+        if (!minor) {
+            this.div.innerHTML = "";
+            tile = this.addTile(bounds, new OpenLayers.Pixel(-parseInt(this.map.layerContainerDiv.style.left), -parseInt(this.map.layerContainerDiv.style.top)));
+            tile.draw();
+        }
+    },
+    /** @final @type String */
+    CLASS_NAME: "OpenLayers.Layer.WMS.Untiled"
+});