reports.util.PieChart3DScriptlet.java Source code

Introduction

Here is the source code for reports.util.PieChart3DScriptlet.java

Source

package reports.util;

/*
 * ============================================================================
 * GNU Lesser General Public License
 * ============================================================================
 *
 * JasperReports - Free Java report-generating library.
 * Copyright (C) 2001-2005 JasperSoft Corporation http://www.jaspersoft.com
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
 * 
 * JasperSoft Corporation
 * 185, Berry Street, Suite 6200
 * San Francisco CA 94107
 * http://www.jaspersoft.com
 */

/*
 * Contributors:
 * David Gilbert - david.gilbert@object-refinery.com
 */

import java.util.Iterator;

import net.sf.jasperreports.engine.JRDefaultScriptlet;
import net.sf.jasperreports.engine.JRScriptletException;
import net.sf.jasperreports.engine.JRVariable;
import net.sf.jasperreports.engine.fill.JRFillField;
import net.sf.jasperreports.renderers.JCommonDrawableRenderer;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.util.Rotation;

/**
 * @author Teodor Danciu (teodord@users.sourceforge.net)
 * @version $Id: PieChart3DScriptlet.java,v 1.1 2007/12/21 16:10:05 wilson Exp $
 */
public class PieChart3DScriptlet extends JRDefaultScriptlet {

    DefaultPieDataset dataset = new DefaultPieDataset();

    public void afterDetailEval() throws JRScriptletException {
        super.afterDetailEval();

        String label = "";
        Double value = null;
        Iterator list = this.fieldsMap.values().iterator();
        Iterator vlist = this.variablesMap.values().iterator();
        while (vlist.hasNext()) {
            JRVariable variable = (JRVariable) vlist.next();
            System.out.println("Variable : " + variable.getName());
            if (variable.getName().equals("stateTotal"))
                value = (Double) this.getVariableValue(variable.getName());
        }
        while (list.hasNext()) {
            JRFillField field = (JRFillField) list.next();
            //System.out.println(field.getName()+" : "+this.getFieldValue(field.getName()));
            if (field.getName().equals("STATE"))
                label = (String) this.getFieldValue(field.getName());
            //if (field.getName().equals("QUANTITY"))
            //   value=(Double)this.getFieldValue(field.getName());
        }
        dataset.setValue(label, value);
        System.out.println("=============");
    }

    /**
     *
     */
    public void afterReportInit() throws JRScriptletException {

        JFreeChart chart = ChartFactory.createPieChart3D("Pie Chart 3D Demo 1", dataset, true, true, false);

        PiePlot3D plot = (PiePlot3D) chart.getPlot();
        plot.setStartAngle(290);
        plot.setDirection(Rotation.CLOCKWISE);
        plot.setForegroundAlpha(0.5f);
        plot.setNoDataMessage("No data to display");

        /*   */
        this.setVariableValue("Chart", new JCommonDrawableRenderer(chart));
    }

}