001    /* ===========================================================
002     * JFreeChart : a free chart library for the Java(tm) platform
003     * ===========================================================
004     *
005     * (C) Copyright 2000-2011, 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     * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
025     * Other names may be trademarks of their respective owners.]
026     *
027     * ------------------
028     * PieChartDemo1.java
029     * ------------------
030     * (C) Copyright 2003-2011, 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 javax.swing.JPanel;
045    
046    import org.jfree.chart.ChartFactory;
047    import org.jfree.chart.ChartPanel;
048    import org.jfree.chart.JFreeChart;
049    import org.jfree.chart.StandardChartTheme;
050    import org.jfree.chart.plot.PiePlot;
051    import org.jfree.data.general.DefaultPieDataset;
052    import org.jfree.data.general.PieDataset;
053    import org.jfree.ui.ApplicationFrame;
054    import org.jfree.ui.RefineryUtilities;
055    
056    /**
057     * A simple demonstration application showing how to create a pie chart using
058     * data from a {@link DefaultPieDataset}.
059     */
060    public class PieChartDemo1 extends ApplicationFrame {
061    
062        private static final long serialVersionUID = 1L;
063    
064        {
065            // set a theme using the new shadow generator feature available in
066            // 1.0.14 - for backwards compatibility it is not enabled by default
067            ChartFactory.setChartTheme(new StandardChartTheme("JFree/Shadow",
068                    true));
069        }
070    
071        /**
072         * Default constructor.
073         *
074         * @param title  the frame title.
075         */
076        public PieChartDemo1(String title) {
077            super(title);
078            setContentPane(createDemoPanel());
079        }
080    
081        /**
082         * Creates a sample dataset.
083         *
084         * @return A sample dataset.
085         */
086        private static PieDataset createDataset() {
087            DefaultPieDataset dataset = new DefaultPieDataset();
088            dataset.setValue("One", new Double(43.2));
089            dataset.setValue("Two", new Double(10.0));
090            dataset.setValue("Three", new Double(27.5));
091            dataset.setValue("Four", new Double(17.5));
092            dataset.setValue("Five", new Double(11.0));
093            dataset.setValue("Six", new Double(19.4));
094            return dataset;
095        }
096    
097        /**
098         * Creates a chart.
099         *
100         * @param dataset  the dataset.
101         *
102         * @return A chart.
103         */
104        private static JFreeChart createChart(PieDataset dataset) {
105    
106            JFreeChart chart = ChartFactory.createPieChart(
107                "Pie Chart Demo 1",  // chart title
108                dataset,             // data
109                true,                // include legend
110                true,
111                false
112            );
113    
114            PiePlot plot = (PiePlot) chart.getPlot();
115            plot.setSectionOutlinesVisible(false);
116            plot.setNoDataMessage("No data available");
117            return chart;
118    
119        }
120    
121        /**
122         * Creates a panel for the demo (used by SuperDemo.java).
123         *
124         * @return A panel.
125         */
126        public static JPanel createDemoPanel() {
127            JFreeChart chart = createChart(createDataset());
128            ChartPanel panel = new ChartPanel(chart);
129            panel.setMouseWheelEnabled(true);
130            return panel;
131        }
132    
133        /**
134         * Starting point for the demonstration application.
135         *
136         * @param args  ignored.
137         */
138        public static void main(String[] args) {
139    
140            // ******************************************************************
141            //  More than 150 demo applications are included with the JFreeChart
142            //  Developer Guide...for more information, see:
143            //
144            //  >   http://www.object-refinery.com/jfreechart/guide.html
145            //
146            // ******************************************************************
147    
148            PieChartDemo1 demo = new PieChartDemo1("Pie Chart Demo 1");
149            demo.pack();
150            RefineryUtilities.centerFrameOnScreen(demo);
151            demo.setVisible(true);
152        }
153    
154    }