    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
    042package org.jfree.chart.demo;
    043
    044import javax.swing.JPanel;
    045
    046import org.jfree.chart.ChartFactory;
    047import org.jfree.chart.ChartPanel;
    048import org.jfree.chart.JFreeChart;
    049import org.jfree.chart.StandardChartTheme;
    050import org.jfree.chart.plot.PiePlot;
    051import org.jfree.data.general.DefaultPieDataset;
    052import org.jfree.data.general.PieDataset;
    053import org.jfree.ui.ApplicationFrame;
    054import 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 */
    060public 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}