001: /* ===========================================================
002: * JFreeChart : a free chart library for the Java(tm) platform
003: * ===========================================================
004: *
005: * (C) Copyright 2000-2006, 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 2003-2006, by Object Refinery Limited and Contributors.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): ;
034: *
035: * $Id: PieChartDemo1.java,v 1.2.2.4 2006/10/25 10:38:47 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 09-Mar-2005 : Version 1, copied from the demo collection that ships with
040: * the JFreeChart Developer Guide (DG);
041: *
042: */
043:
044: package org.jfree.chart.demo;
045:
046: import java.awt.Font;
047:
048: import javax.swing.JPanel;
049:
050: import org.jfree.chart.ChartFactory;
051: import org.jfree.chart.ChartPanel;
052: import org.jfree.chart.JFreeChart;
053: import org.jfree.chart.plot.PiePlot;
054: import org.jfree.data.general.DefaultPieDataset;
055: import org.jfree.data.general.PieDataset;
056: import org.jfree.ui.ApplicationFrame;
057: import org.jfree.ui.RefineryUtilities;
058:
059: /**
060: * A simple demonstration application showing how to create a pie chart using
061: * data from a {@link DefaultPieDataset}.
062: */
063: public class PieChartDemo1 extends ApplicationFrame {
064:
065: /**
066: * Default constructor.
067: *
068: * @param title the frame title.
069: */
070: public PieChartDemo1(String title) {
071: super (title);
072: setContentPane(createDemoPanel());
073: }
074:
075: /**
076: * Creates a sample dataset.
077: *
078: * @return A sample dataset.
079: */
080: private static PieDataset createDataset() {
081: DefaultPieDataset dataset = new DefaultPieDataset();
082: dataset.setValue("One", new Double(43.2));
083: dataset.setValue("Two", new Double(10.0));
084: dataset.setValue("Three", new Double(27.5));
085: dataset.setValue("Four", new Double(17.5));
086: dataset.setValue("Five", new Double(11.0));
087: dataset.setValue("Six", new Double(19.4));
088: return dataset;
089: }
090:
091: /**
092: * Creates a chart.
093: *
094: * @param dataset the dataset.
095: *
096: * @return A chart.
097: */
098: private static JFreeChart createChart(PieDataset dataset) {
099:
100: JFreeChart chart = ChartFactory.createPieChart(
101: "Pie Chart Demo 1", // chart title
102: dataset, // data
103: true, // include legend
104: true, false);
105:
106: PiePlot plot = (PiePlot) chart.getPlot();
107: plot.setSectionOutlinesVisible(false);
108: plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12));
109: plot.setNoDataMessage("No data available");
110: plot.setCircular(false);
111: plot.setLabelGap(0.02);
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: }
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