com.twocents.test.ui.chart.MultipieChart.java Source code

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Here is the source code for com.twocents.test.ui.chart.MultipieChart.java

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package com.twocents.test.ui.chart;

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 *
 * --------------------------
 * MultiplePieChartDemo1.java
 * --------------------------
 * (C) Copyright 2004, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: MultiplePieChartDemo1.java,v 1.5 2004/04/26 19:12:00 taqua Exp $
 *
 * Changes
 * -------
 * 29-Jan-2004 : Version 1 (DG);
 *
 */

import java.awt.Font;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.MultiplePiePlot;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DatasetUtilities;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.util.TableOrder;

import com.twocents.report.charts.StandardPieItemLabelGenerator;

/**
 * A simple demonstration application showing how to create a chart consisting of multiple
 * pie charts.
 *
 */
public class MultipieChart extends ApplicationFrame {

    /**
    * 
    */
    private static final long serialVersionUID = 1L;

    /**
      * Creates a new demo.
      *
      * @param title  the frame title.
      */
    public MultipieChart(final String title) {

        super(title);
        final CategoryDataset dataset = createDataset();
        final JFreeChart chart = createChart(dataset);
        final ChartPanel chartPanel = new ChartPanel(chart, true, true, true, false, true);
        chartPanel.setPreferredSize(new java.awt.Dimension(600, 380));
        setContentPane(chartPanel);

    }

    /**
     * Creates a sample dataset.
     * 
     * @return A sample dataset.
     */
    private CategoryDataset createDataset() {
        final double[][] data = new double[][] { { 3.0, 4.0, 3.0, 5.0 }, { 5.0, 7.0, 6.0, 8.0 },
                { 5.0, 7.0, 3.0, 8.0 }, { 1.0, 2.0, 3.0, 4.0 }, { 2.0, 3.0, 2.0, 3.0 } };
        final CategoryDataset dataset = DatasetUtilities.createCategoryDataset("Region ", "Sales/Q", data);
        return dataset;
    }

    /**
     * Creates a sample chart with the given dataset.
     * 
     * @param dataset  the dataset.
     * 
     * @return A sample chart.
     */
    private JFreeChart createChart(final CategoryDataset dataset) {
        final JFreeChart chart = ChartFactory.createMultiplePieChart("Multiple Pie Chart", // chart title
                dataset, // dataset
                TableOrder.BY_ROW, true, // include legend
                true, false);
        final MultiplePiePlot plot = (MultiplePiePlot) chart.getPlot();
        final JFreeChart subchart = plot.getPieChart();
        final PiePlot p = (PiePlot) subchart.getPlot();
        p.setLabelGenerator(new StandardPieItemLabelGenerator("{0}"));
        p.setLabelFont(new Font("SansSerif", Font.PLAIN, 8));
        p.setInteriorGap(0.30);

        return chart;
    }

    // ****************************************************************************
    // * JFREECHART DEVELOPER GUIDE                                               *
    // * The JFreeChart Developer Guide, written by David Gilbert, is available   *
    // * to purchase from Object Refinery Limited:                                *
    // *                                                                          *
    // * http://www.object-refinery.com/jfreechart/guide.html                     *
    // *                                                                          *
    // * Sales are used to provide funding for the JFreeChart project - please    * 
    // * support us so that we can continue developing free software.             *
    // ****************************************************************************

    /**
     * Starting point for the demonstration application.
     *
     * @param args  ignored.
     */
    public static void main(final String[] args) {

        final MultipieChart demo = new MultipieChart("Multiple Pie Chart Demo 1");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}