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    
042    package org.jfree.chart.demo;
043    
044    import java.awt.Font;
045    
046    import javax.swing.JPanel;
047    
048    import org.jfree.chart.ChartFactory;
049    import org.jfree.chart.ChartPanel;
050    import org.jfree.chart.JFreeChart;
051    import org.jfree.chart.plot.PiePlot;
052    import org.jfree.data.general.DefaultPieDataset;
053    import org.jfree.data.general.PieDataset;
054    import org.jfree.ui.ApplicationFrame;
055    import 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     */
061    public 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    }