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, 105 false 106 ); 107 108 PiePlot plot = (PiePlot) chart.getPlot(); 109 plot.setSectionOutlinesVisible(false); 110 plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12)); 111 plot.setNoDataMessage("No data available"); 112 plot.setCircular(false); 113 plot.setLabelGap(0.02); 114 return chart; 115 116 } 117 118 /** 119 * Creates a panel for the demo (used by SuperDemo.java). 120 * 121 * @return A panel. 122 */ 123 public static JPanel createDemoPanel() { 124 JFreeChart chart = createChart(createDataset()); 125 return new ChartPanel(chart); 126 } 127 128 /** 129 * Starting point for the demonstration application. 130 * 131 * @param args ignored. 132 */ 133 public static void main(String[] args) { 134 135 // ****************************************************************** 136 // More than 150 demo applications are included with the JFreeChart 137 // Developer Guide...for more information, see: 138 // 139 // > http://www.object-refinery.com/jfreechart/guide.html 140 // 141 // ****************************************************************** 142 143 PieChartDemo1 demo = new PieChartDemo1("Pie Chart Demo 1"); 144 demo.pack(); 145 RefineryUtilities.centerFrameOnScreen(demo); 146 demo.setVisible(true); 147 } 148 149 }