Changeset 5617

Timestamp:

01/01/08 17:23:02 (1 year ago)

Author:

tschaub

Message:

read/write wmc

Files:

• sandbox/tschaub/wmc/lib/OpenLayers/Format/WMC.js (modified) (3 diffs)
• sandbox/tschaub/wmc/lib/OpenLayers/Format/WMC/v1.js (modified) (17 diffs)
• sandbox/tschaub/wmc/lib/OpenLayers/Format/WMC/v1_0_0.js (modified) (1 diff)
• sandbox/tschaub/wmc/lib/OpenLayers/Format/WMC/v1_1_0.js (modified) (1 diff)
• sandbox/tschaub/wmc/lib/OpenLayers/Format/XML.js (modified) (1 diff)

sandbox/tschaub/wmc/lib/OpenLayers/Format/WMC.js

@@ -1 +1 @@
-/**
- * @requires OpenLayers/Format/XML.js
-
+
+
+
- * Class: OpenLayers.Format.WMC
- * Read and write Web Map Context documents.
- 
+
- * Inherits from:
- *  - <OpenLayers.Format.XML>
- */
-OpenLayers.Format.XML, 
+
-    
-    /**
@@ -38 +40 @@
-     */
-    initialize: function(options) {
-Format.XML.prototype.initialize.apply(this, [options]
+Util.extend(this, options
-        this.options = options;
-    },
@@ -136 +138 @@
-    mapToContext: function(map) {
-        var context = {};
+        return context;
-    },
-

sandbox/tschaub/wmc/lib/OpenLayers/Format/WMC/v1.js

@@ -1 +1 @@
-/**
-
-
+
+
+
+
- * Class: OpenLayers.Format.WMC.v1
- * Superclass for WMC version 1 parsers.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
- */
-
+OpenLayers.Format.XML, 
-    
-    /**
@@ -12 +17 @@
-     */
-    namespaces: {
-context
+wmc
-        sld: "http://www.opengeospatial.net/sld",
-        xlink: "http://www.w3.org/1999/xlink"
-    },
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-    /**
-     * Constructor: OpenLayers.Format.WMC.v1
@@ -31 +68 @@
-
-    /**
-API
+
-     * Read capabilities data from a string, and return a list of layers. 
-     * 
@@ -45 +82 @@
-        }
-        var root = data.documentElement;
+        this.rootPrefix = root.prefix;
-        var context = {
-            version: root.getAttribute("version")
@@ -57 +95 @@
-    runChildNodes: function(obj, node) {
-        var children = node.childNodes;
-
+, prefix
-        for(var i=0; i<children.length; ++i) {
-            childNode = children[i];
-            if(childNode.nodeType == 1) {
-
+
+
+
+
-                if(processor) {
-                    processor.apply(this, [obj, childNode]);
@@ -70 +111 @@
-    
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        this.runChildNodes(context, node);
-    },
-    
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        context.srs = node.getAttribute("SRS");
-        context.bounds = new OpenLayers.Bounds(
@@ -90 +131 @@
-    
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        context.layers = [];
-        this.runChildNodes(context, node);
@@ -98 +139 @@
-    
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        var layerInfo = {
-            visibility: (node.getAttribute("hidden") != "1"),
@@ -123 +164 @@
-    
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        layerInfo.version = node.getAttribute("version");
-        this.runChildNodes(layerInfo, node);
@@ -131 +172 @@
-
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        this.runChildNodes(layerInfo, node);
-    },
-
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        var format = this.getChildValue(node)
-        layerInfo.formats.push(format);
@@ -149 +190 @@
-    
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        this.runChildNodes(layerInfo, node);
-    },
-
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        var style = {};
-        this.runChildNodes(style, node);
@@ -168 +209 @@
-
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        obj.href = this.getAttributeNS(
-"http://www.w3.org/1999/xlink"
+this.namespaces.xlink
-        );
-    },
-    
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        var name = this.getChildValue(node);
-        if(name) {
@@ -187 +228 @@
-
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        var title = this.getChildValue(node);
-        if(title) {
@@ -197 +238 @@
-
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        var abst = this.getChildValue(node);
-        if(abst) {
@@ -207 +248 @@
-    
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        layer.llbbox = [
-            parseFloat(node.getAttribute("minx")),
@@ -219 +260 @@
-
-    /**
-
-
-
+_wmc_
+
+_wmc_
-        var legend = {
-            width: node.getAttribute('width'),
@@ -228 +269 @@
-        var links = node.getElementsByTagName("OnlineResource");
-        if(links.length > 0) {
-
+_wmc_
-        }
-        style.legend = legend;
-    },
-    
+    /**
+     * Method: write
+     *
+     * Parameters:
+     * context - {Object} An object representing the map context.
+     * options - {Object} Optional object.
+     *
+     * Returns:
+     * {String} A WMC document string.
+     */
+    write: function(context, options) {
+        var root = this.createElementDefaultNS("ViewContext");
+        this.setAttributes(root, {
+            version: this.VERSION,
+            id: (options && typeof options.id == "string") ?
+                    options.id :
+                    OpenLayers.Util.createUniqueID("OpenLayers_Context_")
+        });
+
+        // required General element
+        root.appendChild(this.write_wmc_General(context));
+
+        // required LayerList element
+        root.appendChild(this.write_wmc_LayerList(context));
+
+        return OpenLayers.Format.XML.prototype.write.apply(this, [root]);
+    },
+    
+    /**
+     * Method: createElementDefaultNS
+     * Shorthand for createElementNS with namespace from <defaultPrefix>.
+     *     Can optionally be used to set attributes and a text child value.
+     *
+     * Parameters:
+     * name - {String} The qualified node name.
+     * childValue - {String} Optional value for text child node.
+     * attributes - {Object} Optional object representing attributes.
+     *
+     * Returns:
+     * {Element} An element node.
+     */
+    createElementDefaultNS: function(name, childValue, attributes) {
+        var node = this.createElementNS(
+            this.namespaces[this.defaultPrefix],
+            name
+        );
+        if(childValue) {
+            node.appendChild(this.createTextNode(childValue));
+        }
+        if(attributes) {
+            this.setAttributes(node, attributes);
+        }
+        return node;
+    },
+    
+    /**
+     * Method: setAttributes
+     * Set multiple attributes given key value pairs from an object.
+     *
+     * Parameters:
+     * node - {Element} An element node.
+     * obj - {Object} An object whose properties represent attribute names and
+     *     values represent attribute values.
+     */
+    setAttributes: function(node, obj) {
+        for(var name in obj) {
+            node.setAttribute(name, obj[name]);
+        }
+    },
+
+    /**
+     * Method: write_wmc_General
+     * Create a General node given an context object.
+     *
+     * Parameters:
+     * context - {Object} Context object.
+     *
+     * Returns:
+     * {Element} A WMC General element node.
+     */
+    write_wmc_General: function(context) {
+        var node = this.createElementDefaultNS("General");
+
+        // optional Window element
+        if(context.size) {
+            node.appendChild(this.createElementDefaultNS(
+                "Window", null,
+                {
+                    width: context.size.w,
+                    height: context.size.h
+                }
+            ));
+        }
+        
+        // required BoundingBox element
+        var bounds = context.bounds;
+        node.appendChild(this.createElementDefaultNS(
+            "BoundingBox", null,
+            {
+                minx: bounds.left, miny: bounds.bottom,
+                maxx: bounds.right, maxy: bounds.top,
+                SRS: context.srs
+            }
+        ));
+
+        // required Title element
+        node.appendChild(this.createElementDefaultNS(
+            "Title", context.title
+        ));
+        
+        return node;
+    },
+    
+    /**
+     * Method: write_wmc_LayerList
+     * Create a LayerList node given an context object.
+     *
+     * Parameters:
+     * context - {Object} Context object.
+     *
+     * Returns:
+     * {Element} A WMC LayerList element node.
+     */
+    write_wmc_LayerList: function(context) {
+        var list = this.createElementDefaultNS("LayerList");
+        
+        var layer;
+        for(var i=0; i<context.layers.length; ++i) {
+            list.appendChild(this.write_wmc_Layer(context.layers[i]));
+        }
+        
+        return list;
+    },
+
+    /**
+     * Method: write_wmc_Layer
+     * Create a Layer node given a layer object.
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer.WMS>} Layer object.
+     *
+     * Returns:
+     * {Element} A WMC Layer element node.
+     */
+    write_wmc_Layer: function(layer) {
+        var node = this.createElementDefaultNS(
+            "Layer", null, {
+                queryable: "true",
+                hidden: layer.visibility ? "true" : "false"
+            }
+        );
+        
+        // required Name element
+        node.appendChild(this.createElementDefaultNS(
+            "Name", layer.params["LAYERS"]
+        ));
+        
+        // required Title element
+        node.appendChild(this.createElementDefaultNS(
+            "Title", layer.name
+        ));
+
+        // required Server element
+        node.appendChild(this.write_wmc_Server(layer));
+
+        return node;
+    },
+
+    /**
+     * Method: write_wmc_Server
+     * Create a Server node given a layer object.
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer.WMS>} Layer object.
+     *
+     * Returns:
+     * {Element} A WMC Server element node.
+     */
+    write_wmc_Server: function(layer) {
+        var node = this.createElementDefaultNS("Server");
+        this.setAttributes(node, {
+            service: "OGC:WMS",
+            version: layer.params["VERSION"]
+        });
+        
+        // required OnlineResource element
+        node.appendChild(this.write_wmc_OnlineResource(layer.url));
+        
+        return node;
+    },
+
+    /**
+     * Method: write_wmc_FormatList
+     * Create a FormatList node given a layer.
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer.WMS>} Layer object.
+     *
+     * Returns:
+     * {Element} A WMC FormatList element node.
+     */
+    write_wmc_FormatList: function(layer) {
+        var node = this.createElementDefaultNS("FormatList");
+        node.appendChild(this.createElementDefaultNS(
+            "Format", layer.params["FORMAT"], {current: "true"}
+        ));
+
+        return node;
+    },
+
+    /**
+     * Method: write_wmc_StyleList
+     * Create a StyleList node given a layer.
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer.WMS>} Layer object.
+     *
+     * Returns:
+     * {Element} A WMC StyleList element node.
+     */
+    write_wmc_StyleList: function(layer) {
+        var node = this.createElementDefaultNS("StyleList");
+        node.appendChild(this.createElementDefaultNS(
+            "Style", layer.params["STYLES"], {current: "true"}
+        ));
+
+        return node;
+    },
+
+    /**
+     * Method: write_wmc_OnlineResource
+     * Create an OnlineResource node given a URL.
+     *
+     * Parameters:
+     * href - {String} URL for the resource.
+     *
+     * Returns:
+     * {Element} A WMC OnlineResource element node.
+     */
+    write_wmc_OnlineResource: function(href) {
+        var node = this.createElementDefaultNS("OnlineResource");
+        this.setAttributeNS(node, this.namespaces.xlink, "xlink:type", "simple");
+        this.setAttributeNS(node, this.namespaces.xlink, "xlink:href", href);
+        return node;
+    },
-
-    CLASS_NAME: "OpenLayers.Format.WMC.v1" 

sandbox/tschaub/wmc/lib/OpenLayers/Format/WMC/v1_0_0.js

@@ -1 +1 @@
-/**
-
-
+
+
+
+
- * Class: OpenLayers.Format.WMC.v1_0_0
- * Read and write WMC version 1.0.0.

sandbox/tschaub/wmc/lib/OpenLayers/Format/WMC/v1_1_0.js

@@ -1 +1 @@
-/**
-
-
+
+
+
+
- * Class: OpenLayers.Format.WMC.v1_1_0
- * Read and write WMC version 1.1.0.

sandbox/tschaub/wmc/lib/OpenLayers/Format/XML.js

@@ -349 +349 @@
-        return found;
-    },
+    
+    /**
+     * APIMethod: setAttributeNS
+     * Adds a new attribute or changes the value of an attribute with the given
+     *     namespace and name.
+     *
+     * Parameters:
+     * node - {Element} Element node on which to set the attribute.
+     * namespace - {String} Namespace URI for the attribute.
+     * name - {String} Qualified name (prefix:localName) for the attribute.
+     * value - {String} Attribute value.
+     */
+    setAttributeNS: function(node, namespace, name, value) {
+        if(node.setAttributeNS) {
+            node.setAttributeNS(namespace, name, value);
+        } else {
+            throw "setAttributeNS not implemented";
+        }
+    },
-
-    CLASS_NAME: "OpenLayers.Format.XML"