    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    }