001/* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
006 *
007 * Project Info:  http://www.jfree.org/jfreechart/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it 
010 * under the terms of the GNU Lesser General Public License as published by 
011 * the Free Software Foundation; either version 2.1 of the License, or 
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but 
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
022 * USA.  
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
025 * in the United States and other countries.]
026 *
027 * ------------------
028 * PieChartDemo1.java
029 * ------------------
030 * (C) Copyright 2003-2007, by Object Refinery Limited and Contributors.
031 *
032 * Original Author:  David Gilbert (for Object Refinery Limited);
033 * Contributor(s):   ;
034 *
035 * Changes
036 * -------
037 * 09-Mar-2005 : Version 1, copied from the demo collection that ships with
038 *               the JFreeChart Developer Guide (DG);
039 *
040 */
041
042package org.jfree.chart.demo;
043
044import java.awt.Font;
045
046import javax.swing.JPanel;
047
048import org.jfree.chart.ChartFactory;
049import org.jfree.chart.ChartPanel;
050import org.jfree.chart.JFreeChart;
051import org.jfree.chart.plot.PiePlot;
052import org.jfree.data.general.DefaultPieDataset;
053import org.jfree.data.general.PieDataset;
054import org.jfree.ui.ApplicationFrame;
055import org.jfree.ui.RefineryUtilities;
056
057/**
058 * A simple demonstration application showing how to create a pie chart using 
059 * data from a {@link DefaultPieDataset}.
060 */
061public class PieChartDemo1 extends ApplicationFrame {
062
063    /**
064     * Default constructor.
065     *
066     * @param title  the frame title.
067     */
068    public PieChartDemo1(String title) {
069        super(title);
070        setContentPane(createDemoPanel());
071    }
072
073    /**
074     * Creates a sample dataset.
075     * 
076     * @return A sample dataset.
077     */
078    private static PieDataset createDataset() {
079        DefaultPieDataset dataset = new DefaultPieDataset();
080        dataset.setValue("One", new Double(43.2));
081        dataset.setValue("Two", new Double(10.0));
082        dataset.setValue("Three", new Double(27.5));
083        dataset.setValue("Four", new Double(17.5));
084        dataset.setValue("Five", new Double(11.0));
085        dataset.setValue("Six", new Double(19.4));
086        return dataset;        
087    }
088    
089    /**
090     * Creates a chart.
091     * 
092     * @param dataset  the dataset.
093     * 
094     * @return A chart.
095     */
096    private static JFreeChart createChart(PieDataset dataset) {
097        
098        JFreeChart chart = ChartFactory.createPieChart(
099            "Pie Chart Demo 1",  // chart title
100            dataset,             // data
101            true,               // include legend
102            true,
103            false
104        );
105
106        PiePlot plot = (PiePlot) chart.getPlot();
107        plot.setSectionOutlinesVisible(false);
108        plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 10));
109        plot.setNoDataMessage("No data available");
110        plot.setSimpleLabels(true);
111        return chart;
112        
113    }
114    
115    /**
116     * Creates a panel for the demo (used by SuperDemo.java).
117     * 
118     * @return A panel.
119     */
120    public static JPanel createDemoPanel() {
121        JFreeChart chart = createChart(createDataset());
122        return new ChartPanel(chart);
123    }
124    
125    /**
126     * Starting point for the demonstration application.
127     *
128     * @param args  ignored.
129     */
130    public static void main(String[] args) {
131
132        // ******************************************************************
133        //  More than 150 demo applications are included with the JFreeChart
134        //  Developer Guide...for more information, see:
135        //
136        //  >   http://www.object-refinery.com/jfreechart/guide.html
137        //
138        // ******************************************************************
139        
140        PieChartDemo1 demo = new PieChartDemo1("Pie Chart Demo 1");
141        demo.pack();
142        RefineryUtilities.centerFrameOnScreen(demo);
143        demo.setVisible(true);
144    }
145
146}