# HG changeset patch
# User Tim Englich <tim.englich@intevation.de>
# Date 1275414054 0
# Node ID 5779220ebb80ed52987b59cb40877427b896a7bb
# Parent  a8e044224b16cc19af5fdc7510526b3c8dff5bfe
Added functionality to read WMS-Capabilities-Documents

gnv/trunk@1145 c6561f87-3c4e-4783-a992-168aeb5c3f6f

diff -r a8e044224b16 -r 5779220ebb80 gnv/ChangeLog
--- a/gnv/ChangeLog	Tue Jun 01 16:11:06 2010 +0000
+++ b/gnv/ChangeLog	Tue Jun 01 17:40:54 2010 +0000
@@ -1,3 +1,27 @@
+2010-06-01  Tim Englich  <tim.englich@intevation.de>
+
+	Providing functionality to read an WMS-Capabilities-Documnet and list all
+	layers which are include. This is the first step to provide the requested
+	function to integrate external WMS-Layers.
+
+	To read the XML-Documents it is required to integrate the proxy.cgi script
+	into the Apache Webserver. for this you have to copy the  proxy.cgi script
+	to /usr/lib/cgi-bin. 
+
+	You might have to change the allowedHosts in this script.
+
+	* src/main/webapp/WEB-INF/jsp/wmslayout.jsp: 
+	  Integrated link to JavaScript-file olutils.js
+
+	* /src/main/webapp/scripts/olutils.js:
+	  Integrate Utilities-javaScript-fiel from Demonstrator to provide
+	  JavaScript-Functions for handling WMS-Capabilities-Requests.
+	* src/main/webapp/scripts/viewport.jsp: 
+	  Integrated JavaScript-Elements for WMS-Capabilities Request.
+
+	* src/main/webapp/WEB-INF/jsp/includes/display_map_inc.jsp: 
+	  Integrated HTML-Elements for the WMS-Capabilities Request.
+
 2010-06-01  Ingo Weinzierl <ingo.weinzierl@intevation.de>
 
 	* src/main/webapp/WEB-INF/config/templates/describe-ui-static.xsl:
diff -r a8e044224b16 -r 5779220ebb80 gnv/src/main/webapp/WEB-INF/jsp/includes/display_map_inc.jsp
--- a/gnv/src/main/webapp/WEB-INF/jsp/includes/display_map_inc.jsp	Tue Jun 01 16:11:06 2010 +0000
+++ b/gnv/src/main/webapp/WEB-INF/jsp/includes/display_map_inc.jsp	Tue Jun 01 17:40:54 2010 +0000
@@ -1,2 +1,8 @@
-<div id="tree"><!-- Just a Comment --></div>
+<div id="cap">
+    <div id="remoteinput">
+        <div id="urlinput"><!-- Just a Comment --></div>
+        <div id="urlbutton"><!-- Just a Comment --></div>
+    </div>
+    <div id="capgrid"><!-- Just a Comment --></div>
+</div>
 <div id="mapcontainer" style="width: 400px; height: 400px"><!-- Just a Comment --></div>
\ No newline at end of file
diff -r a8e044224b16 -r 5779220ebb80 gnv/src/main/webapp/WEB-INF/jsp/wmslayout.jsp
--- a/gnv/src/main/webapp/WEB-INF/jsp/wmslayout.jsp	Tue Jun 01 16:11:06 2010 +0000
+++ b/gnv/src/main/webapp/WEB-INF/jsp/wmslayout.jsp	Tue Jun 01 17:40:54 2010 +0000
@@ -33,6 +33,7 @@
         <script type="text/javascript" src="scripts/ext/ext-2.3.0/ext-all.js"></script>
         <script type="text/javascript" src="scripts/openlayers/OpenLayers-2.9/OpenLayers.js"></script>
         <script type="text/javascript" src="scripts/geoext/geoext-0.6/script/GeoExt.js"></script>
+        <script type="text/javascript" src="scripts/olutils.js"></script>
         <script type="text/javascript" src="<%=response.encodeURL("scripts/layers.jsp?uid="+System.currentTimeMillis())%>"></script>
         <script type="text/javascript" src="<%=response.encodeURL("scripts/viewport.jsp?uid="+System.currentTimeMillis())%>"></script>
          
diff -r a8e044224b16 -r 5779220ebb80 gnv/src/main/webapp/scripts/olutils.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv/src/main/webapp/scripts/olutils.js	Tue Jun 01 17:40:54 2010 +0000
@@ -0,0 +1,191 @@
+function handleMeasurements(event) {
+    var geometry = event.geometry;
+    var units    = event.units;
+    var order    = event.order;
+    var measure  = event.measure;
+    var element  = document.getElementById('measurements');
+    
+    var out = "";
+    if(order == 1) {
+        out += "L\u00e4nge: " + measure.toFixed(3) + " " + units;
+    } else {
+        out += "Fl\u00e4che: " + measure.toFixed(3) + " " + units + "<sup>2</sup>";
+    }
+
+    element.innerHTML=out;
+};
+
+
+
+function readWMC(merge) {
+    var layers = mapPanel.layers;
+    map    = mapPanel.map;
+
+    var format = new OpenLayers.Format.WMC({'layerOptions': {buffer: 0}});
+    var text = document.getElementById("wmc").value;
+
+    merge = true;
+    if(merge) {
+        try {
+            map = format.read(text, {map: map});
+        } catch(err) {
+            document.getElementById("wmc").value = err;
+        }
+    } else {
+        map.destroy();
+        try {
+            var jsonFormat = new OpenLayers.Format.JSON();
+            var mapOptions = jsonFormat.read();
+            map = format.read(text, {map: mapOptions});
+        } catch(err) {
+            document.getElementById("wmc").value = err;
+        }
+    }
+
+    // create MapPanel
+    mapPanel = new GeoExt.MapPanel({
+        border: true,
+        title: "Karte",
+        region: "center",
+        map: map,
+        zoom: 1,
+        layers: map.layers
+    });
+}
+
+
+function writeWMC(merge) {
+    var format = new OpenLayers.Format.WMC({'layerOptions': {buffer: 0}});
+
+    try {
+        var text = format.write(map);
+        document.getElementById("wmc").value = text;
+    } catch(err) {
+        document.getElementById("wmc").value = err;
+    }
+}
+
+
+
+function toggleGetFeatureInfo(evt) {
+    if (infoActive) {
+        infoControls.click.deactivate();
+        infoActive = false;
+    }
+    else {
+        infoControls.click.activate();
+        infoActive = true;
+    }
+}
+
+
+function showInfo(evt) {
+}
+
+
+function addLayer() {
+    var record = grid.getSelectionModel().getSelected();
+    
+    if (record) {
+        var copy = record.copy();
+        copy.set("layer", record.get("layer"));
+        copy.get("layer").mergeNewParams({
+            format: "image/png",
+            transparent: true
+        });
+
+        mapPanel.layers.add(copy);
+        mapPanel.map.zoomToExtent(OpenLayers.Bounds.fromArray(copy.get("llbbox")));
+    }
+}
+
+
+// this is just copied from OpenLayers.Util
+function urlAppend(url, paramStr) {
+    var newUrl = url;
+    if(paramStr) {
+        var parts = (url + " ").split(/[?&]/);
+        newUrl += (parts.pop() === " " ?
+            paramStr :
+            parts.length ? "&" + paramStr : "?" + paramStr);
+    }
+    return newUrl;
+}
+
+
+function updateCapabilities() {
+    var ele = Ext.Element.get('capfield');
+
+    var url     = ele.getValue();
+    var service = "SERVICE=WMS";
+    var request = "REQUEST=GetCapabilities";
+    url = urlAppend(url, service);
+    url = urlAppend(url, request);
+
+    store = new GeoExt.data.WMSCapabilitiesStore({
+        url: url
+    });
+    store.load();
+
+    grid.destroy();
+    grid = new Ext.grid.GridPanel({
+        id: 'wmsgrid',
+        collapsible: false,
+        split: false,
+        border: true,
+        height: 440,
+        //autoHeight: true, don't use autoHeight, because the component doesn't
+        //take care on  the 'addLayer' button at the bottom
+        store: store,
+        cm: new Ext.grid.ColumnModel([
+        {
+            header: 'Name',
+            dataIndex: 'name',
+            sortable: true
+        },
+        {
+            id: 'title',
+            header: 'Title',
+            dataIndex: 'title',
+            sortable: true
+        }]),
+        renderTo: 'capgrid',
+        bbar: [{
+            text: 'Add Layer',
+            handler: addLayer
+        }]
+    });
+}
+
+
+function editFeature(e) {
+    var feature = e.feature;
+
+    // TODO SET FEATURE ATTRIBUTES
+    //feature.attributes['lawa'] = 999;
+    //feature.attributes['lawa_id'] = 999;
+    //feature.attributes['w_gwk_lawa'] = 999;
+    //feature.attributes['w_wrrl'] = 999;
+    //feature.attributes['length_fee'] = 999;
+}
+
+function updateControls() {
+    var controls = panel.controls;
+
+    controls.remove(drawPointControl);
+    controls.remove(drawPathControl);
+    controls.remove(drawPolygonControl);
+
+    panel.destroy();
+    panel = new OpenLayers.Control.Panel();
+    panel.addControls(controls);
+
+    if (points.getVisibility())
+        panel.addControls(drawPointControl);
+    if (lines.getVisibility())
+        panel.addControls(drawPathControl);
+    if (polygons.getVisibility())
+        panel.addControls(drawPolygonControl);
+
+    map.addControl(panel);
+}
diff -r a8e044224b16 -r 5779220ebb80 gnv/src/main/webapp/scripts/viewport.jsp
--- a/gnv/src/main/webapp/scripts/viewport.jsp	Tue Jun 01 16:11:06 2010 +0000
+++ b/gnv/src/main/webapp/scripts/viewport.jsp	Tue Jun 01 17:40:54 2010 +0000
@@ -99,7 +99,67 @@
         
     });
 
-   // map.setCenter(INITIAL_CENTER);
+    map.setCenter(INITIAL_CENTER);
+
+    store = new GeoExt.data.WMSCapabilitiesStore({
+    });
+    store.load();
+
+    grid = new Ext.grid.GridPanel({
+        id: 'wmsgrid',
+        collapsible: false,
+        split: false,
+        border: true,
+        //height: 400,
+        autoHeight: true,
+        store: store,
+        cm: new Ext.grid.ColumnModel([
+        {
+            header: 'Name',
+            dataIndex: 'name',
+            sortable: true
+        },
+        {
+            id: 'title',
+            header: 'Title',
+            dataIndex: 'title',
+            sortable: true
+        }]),
+        renderTo: 'capgrid',
+        bbar: [{
+            text: 'Add Layer',
+            handler: addLayer
+        }]
+    });
+    var cap = new Ext.Panel({
+        id: 'wmspanel',
+        border: true,
+        region: 'east',
+        title: 'WMS Capabilities',
+        collapsible: false,
+        split: false,
+        contentEl: 'cap',
+        height: 400
+    });
+
+    var capfield = new Ext.form.TextField({
+        id: 'capfield',
+        region: 'east',
+        width: '100%',
+        renderTo: 'urlinput'
+    });
+
+    var capbutton = new Ext.Button({
+        id: 'capbutton',
+        region: 'west',
+        handler: updateCapabilities,
+        text: 'Lade',
+        tooltip: 'Lade GetCapabilities Dokument',
+        renderTo: 'urlbutton'
+    });
+
+
+
 
 /* --------------------------- Layer Tree ----------------------------------- */
 
@@ -182,6 +242,7 @@
             },
             items: [
                 tree,
+                cap,
                 legendPanel
             ]
         }