Add MapServer layer.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@1555 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
2006-10-03 21:29:44 +00:00
parent 994230e580
commit 4a14ae5346
3 changed files with 139 additions and 0 deletions
--- a/examples/mapserver.html
+++ b/examples/mapserver.html
@@ -0,0 +1,35 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="imagetoolbar" content="no"> <!--ie image gizmo OFF!-->
+    <style type="text/css">
+        #map {
+            width: 800px;
+            height: 475px;
+            border: 1px solid black;
+        }
+    </style>
+    <script src="../lib/OpenLayers.js"></script>
+    <script type="text/javascript">
+        <!--
+        var lon = 5;
+        var lat = 40;
+        var zoom = 5;
+        var map, layer;
+
+        function init(){
+            map = new OpenLayers.Map( $('map') );
+            layer = new OpenLayers.Layer.MapServer( "OpenLayers WMS", 
+                    "http://labs.metacarta.com/wms/vmap0", {layers: 'basic'} );
+            map.addLayer(layer);
+
+            map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
+            map.addControl( new OpenLayers.Control.LayerSwitcher() );
+        }
+        
+        // -->
+    </script>
+  </head>
+  <body onload="init()">
+    <div id="map"></div>
+  </body>
+</html>
--- a/lib/OpenLayers.js
+++ b/lib/OpenLayers.js
@@ -73,6 +73,7 @@ if (typeof(_OPENLAYERS_SFL_) == "undefined") {
        "OpenLayers/Layer/Yahoo.js",
        "OpenLayers/Layer/HTTPRequest.js",
        "OpenLayers/Layer/Grid.js",
+        "OpenLayers/Layer/MapServer.js",
        "OpenLayers/Layer/KaMap.js",
        "OpenLayers/Layer/MultiMap.js",
        "OpenLayers/Layer/Markers.js",
--- a/lib/OpenLayers/Layer/MapServer.js
+++ b/lib/OpenLayers/Layer/MapServer.js
@@ -0,0 +1,103 @@
+/* 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.MapServer = Class.create();
+OpenLayers.Layer.MapServer.prototype =
+  Object.extend( new OpenLayers.Layer.Grid(), {
+
+    /** @final @type hash */
+    DEFAULT_PARAMS: {
+                      mode: "map",
+                      map_imagetype: "png",
+                     },
+
+    /**
+    * @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)
+                           );
+        }
+    },
+
+
+    /** 
+     * @type Boolean
+     */
+    isBaseLayer: function() {
+        return (this.params.TRANSPARENT != 'true');
+    },
+
+    /**
+    * @param {String} name
+    * @param {hash} params
+    *
+    * @returns A clone of this OpenLayers.Layer.MapServer, with the passed-in
+    *          parameters merged in.
+    * @type OpenLayers.Layer.MapServer
+    */
+    clone: function (name, params) {
+        var mergedParams = {};
+        Object.extend(mergedParams, this.params);
+        Object.extend(mergedParams, params);
+        var obj = new OpenLayers.Layer.MapServer(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) {
+        var url = this.getURL(bounds);
+        return new OpenLayers.Tile.Image(this, position, bounds, url, this.tileSize);
+    },
+        
+    /**
+     * @param {OpenLayers.Bounds} bounds
+     * 
+     * @returns A string with the layer's url and parameters and also the 
+     *           passed-in bounds and appropriate tile size specified as 
+     *           parameters
+     * @type String
+     */
+    getURL: function (bounds) {
+
+        var url = this.getFullRequestString(
+                     {mapext:bounds.toBBOX().replace(/,/g,"+"),
+                      imgext:bounds.toBBOX().replace(/,/g,"+"),
+                      map_size:this.tileSize.w+'+'+this.tileSize.h,
+                      imgx: this.tileSize.w/2,
+                      imgy: this.tileSize.h/2,
+                      imgxy: this.tileSize.w+"+"+this.tileSize.h
+                      });
+        return url;
+    },
+    /** @final @type String */
+    CLASS_NAME: "OpenLayers.Layer.MapServer"
+});