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
112 return chart;
113
114 }
115
116 /**
117 * Creates a panel for the demo (used by SuperDemo.java).
118 *
119 * @return A panel.
120 */
121 public static JPanel createDemoPanel() {
122 JFreeChart chart = createChart(createDataset());
123 return new ChartPanel(chart);
124 }
125
126 /**
127 * Starting point for the demonstration application.
128 *
129 * @param args ignored.
130 */
131 public static void main(String[] args) {
132
133 // ******************************************************************
134 // More than 150 demo applications are included with the JFreeChart
135 // Developer Guide...for more information, see:
136 //
137 // > http://www.object-refinery.com/jfreechart/guide.html
138 //
139 // ******************************************************************
140
141 PieChartDemo1 demo = new PieChartDemo1("Pie Chart Demo 1");
142 demo.pack();
143 RefineryUtilities.centerFrameOnScreen(demo);
144 demo.setVisible(true);
145 }
146
147 }