/*
*
* ==============================================================================
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.wicketstuff.openlayers;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.model.Model;
import org.wicketstuff.openlayers.api.Control;
import org.wicketstuff.openlayers.api.LonLat;
import org.wicketstuff.openlayers.api.control.GetFeature;
import org.wicketstuff.openlayers.api.layer.Layer;
import org.wicketstuff.openlayers.api.layer.Vector;
import org.wicketstuff.openlayers.api.layer.WMS;
import org.wicketstuff.openlayers.js.JSUtils;
import org.wicketstuff.openlayers.proxy.WFSProxyBehavior;
/**
* @author mocleiri
*
* An example that shows how a WFS layer can be used.
*
* This is based on (i.e. the javascript was copied and encoded from) the Openlayers Example
* from : http://openlayers.org/dev/examples/getfeature-wfs.html
*
*/
public class MapUsingWFSGetFeaturePage extends WebPage
{
private static final long serialVersionUID = 1L;
/**
*
*/
public MapUsingWFSGetFeaturePage()
{
super();
List<Layer> layerList = new LinkedList<Layer>();
// function init(){
// OpenLayers.ProxyHost= "proxy.cgi?url=";
// map = new OpenLayers.Map('map', {
// controls: [
// new OpenLayers.Control.PanZoom(),
// new OpenLayers.Control.Permalink(),
// new OpenLayers.Control.Navigation()
// ]
// });
// layer = new OpenLayers.Layer.WMS(
// "States WMS/WFS",
// "http://demo.opengeo.org/geoserver/ows",
// {layers: 'topp:states', format: 'image/gif'}
// );
HashMap<String, String> options = new LinkedHashMap<String, String>();
options.put("layers", JSUtils.getQuotedString("topp:states"));
options.put("format", JSUtils.getQuotedString("image/png8"));
WMS layer = new WMS("States WMS/WFS", "http://demo.opengeo.org/geoserver/ows", options);
HashMap<String, String> vectorOptions = new LinkedHashMap<String, String>();
vectorOptions.put("styleMap",
"new OpenLayers.Style(OpenLayers.Feature.Vector.style['select'])");
Vector select = new Vector("Selection", vectorOptions);
Vector hover = new Vector("Hover");
layerList.add(layer);
layerList.add(select);
layerList.add(hover);
GetFeature control = new GetFeature(layer, true, true, "shiftKey", "ctrlKey");
//
// control = new OpenLayers.Control.GetFeature({
// protocol: OpenLayers.Protocol.WFS.fromWMSLayer(layer),
// box: true,
// hover: true,
// multipleKey: "shiftKey",
// toggleKey: "ctrlKey"
// });
// map.addControl(control);
// control.activate();
//
// map.setCenter();
HashMap<String, String> mapOptions = new LinkedHashMap<String, String>();
// mapOptions.put("maxExtent",
// "new OpenLayers.Bounds(143.834,-43.648,148.479,-39.573)");
final WFSProxyBehavior proxyBehaviour = new WFSProxyBehavior();
OpenLayersMap map = new OpenLayersMap("map", true, layerList, mapOptions)
{
private static final long serialVersionUID = 1L;
/*
* (non-Javadoc)
*
* @see org.wicketstuff.openlayers.OpenLayersMap#getJSinit()
*/
@Override
protected String getJSinit()
{
return "OpenLayers.ProxyHost='" + proxyBehaviour.getProxyUrl() + "';\n" +
super.getJSinit();
}
};
map.setCenter(LonLat.parse("-140.444336,25.115234,-44.438477,50.580078"));
map.setZoom(3);
map.addControl(control);
map.addControl(Control.PanZoomBar);
map.addControl(Control.Navigation);
map.addControl(Control.Permalink);
map.add(proxyBehaviour);
control.registerJavascriptEvent(map, "featureselected",
new Model<String>("vec" + select.getId() + ".addFeatures([evt.feature]);"));
control.registerJavascriptEvent(map, "featureunselected",
new Model<String>("vec" + select.getId() + ".removeFeatures([evt.feature]);"));
control.registerJavascriptEvent(map, "hoverfeature",
new Model<String>("vec" + hover.getId() + ".addFeatures([evt.feature]);"));
control.registerJavascriptEvent(map, "outfeature", new Model<String>("vec" + hover.getId() +
".removeFeatures([evt.feature]);"));
add(map);
}
}