/*
* Copyright 2009-2011 Prime Technology.
*
* 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.primefaces.component.chart.pie;
import java.io.IOException;
import java.util.Iterator;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.component.chart.BaseChartRenderer;
import org.primefaces.component.chart.UIChart;
import org.primefaces.model.chart.PieChartModel;
public class PieChartRenderer extends BaseChartRenderer {
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException{
PieChart chart = (PieChart) component;
encodeMarkup(context, chart);
encodeScript(context, chart);
}
protected void encodeScript(FacesContext context, UIChart uichart) throws IOException{
ResponseWriter writer = context.getResponseWriter();
PieChart chart = (PieChart) uichart;
String clientId = chart.getClientId(context);
writer.startElement("script", null);
writer.writeAttribute("type", "text/javascript", null);
writer.write("$(function(){");
writer.write( chart.resolveWidgetVar() + " = new PrimeFaces.widget.PieChart('" + clientId + "', { " );
encodeData(context, chart);
encodeOptions(context, chart);
encodeClientBehaviors(context, chart);
writer.write("});});");
writer.endElement("script");
}
protected void encodeData(FacesContext context, PieChart chart) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.write("data:[[" );
PieChartModel model = (PieChartModel) chart.getValue();
for(Iterator<String> it = model.getData().keySet().iterator(); it.hasNext();) {
String key = it.next();
Number value = model.getData().get(key);
writer.write("['" + key + "'," + value + "]");
if(it.hasNext())
writer.write(",");
}
writer.write("]]");
}
protected void encodeOptions(FacesContext context, PieChart chart) throws IOException {
ResponseWriter writer = context.getResponseWriter();
encodeCommonConfig(context, chart);
//chart specific config
if(chart.getDiameter() != Integer.MIN_VALUE)
writer.write(",diameter:" + chart.getDiameter());
if(chart.getSliceMargin() != 0)
writer.write(",sliceMargin:" + chart.getSliceMargin());
if(chart.isFill() == false)
writer.write(",fill:false");
if(chart.isShowDataLabels())
writer.write(",showDataLabels:true");
if(chart.getDataFormat() !=null)
writer.write(",dataFormat:'" + chart.getDataFormat() +"'");
}
}