/*******************************************************************************
* Copyright 2009, 2010 Lars Grammel
*
* 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.thechiselgroup.choosel.protovis.client;
import java.util.Comparator;
import org.thechiselgroup.choosel.protovis.client.jsutil.JsArgs;
import org.thechiselgroup.choosel.protovis.client.jsutil.JsStringFunction;
import com.google.gwt.user.client.ui.Widget;
/**
* Protovis/GWT implementation of <a
* href="http://vis.stanford.edu/protovis/ex/dendrogram.html">Protovis
* dendrogram example</a>.
*
* @author Lars Grammel
*/
public class DendrogramExample extends ProtovisWidget implements
ProtovisExample {
@Override
public Widget asWidget() {
return this;
}
private void createVisualization(FlareData.Unit root) {
PVPanel vis = getPVPanel().width(200).height(2200).left(40).right(160)
.top(10).bottom(10);
PVClusterLayout layout = vis
.add(PV.Layout.Cluster())
.nodes(PVDom.create(root, new FlareData.UnitDomAdapter())
.sort(new Comparator<PVDomNode>() {
public int compare(PVDomNode o1, PVDomNode o2) {
return o1.nodeName().compareTo(o2.nodeName());
}
}).nodes()).group(true).orient("left");
layout.link().add(PV.Line).strokeStyle("#ccc").lineWidth(1)
.antialias(false);
layout.node().add(PV.Dot).fillStyle(new JsStringFunction() {
public String f(JsArgs args) {
PVDomNode n = args.getObject();
return n.firstChild() != null ? "#aec7e8" : "#ff7f0e";
}
});
layout.label().add(PV.Label);
}
@Override
public String getDescription() {
return null;
}
public String getProtovisExampleURL() {
return "http://vis.stanford.edu/protovis/ex/dendrogram.html";
}
public String getSourceCodeFile() {
return "DendrogramExample.java";
}
protected void onAttach() {
super.onAttach();
initPVPanel();
createVisualization(FlareData.data());
getPVPanel().render();
}
public String toString() {
return "Dendrogram";
}
}