001/* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2013, 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 2003-2013, 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 java.awt.BasicStroke;
045import java.awt.Color;
046import java.awt.Dimension;
047import java.awt.Font;
048import java.awt.GradientPaint;
049import java.awt.Point;
050import java.awt.RadialGradientPaint;
051import java.awt.geom.Point2D;
052import javax.swing.JPanel;
053
054import org.jfree.chart.ChartFactory;
055import org.jfree.chart.ChartPanel;
056import org.jfree.chart.JFreeChart;
057import org.jfree.chart.StandardChartTheme;
058import org.jfree.chart.plot.PiePlot;
059import org.jfree.chart.title.TextTitle;
060import org.jfree.data.general.DefaultPieDataset;
061import org.jfree.data.general.PieDataset;
062import org.jfree.ui.ApplicationFrame;
063import org.jfree.ui.HorizontalAlignment;
064import org.jfree.ui.RectangleEdge;
065import org.jfree.ui.RectangleInsets;
066import org.jfree.ui.RefineryUtilities;
067
068/**
069 * A simple demonstration application showing how to create a pie chart using
070 * data from a {@link DefaultPieDataset}.
071 */
072public class PieChartDemo1 extends ApplicationFrame {
073
074    private static final long serialVersionUID = 1L;
075
076    {
077        // set a theme using the new shadow generator feature available in
078        // 1.0.14 - for backwards compatibility it is not enabled by default
079        ChartFactory.setChartTheme(new StandardChartTheme("JFree/Shadow",
080                true));
081    }
082
083    /**
084     * Default constructor.
085     *
086     * @param title  the frame title.
087     */
088    public PieChartDemo1(String title) {
089        super(title);
090        setContentPane(createDemoPanel());
091    }
092
093    /**
094     * Creates a sample dataset.
095     * 
096     * Source: http://www.bbc.co.uk/news/business-15489523
097     *
098     * @return A sample dataset.
099     */
100    private static PieDataset createDataset() {
101        DefaultPieDataset dataset = new DefaultPieDataset();
102        dataset.setValue("Samsung", new Double(27.8));
103        dataset.setValue("Others", new Double(55.3));
104        dataset.setValue("Nokia", new Double(16.8));
105        dataset.setValue("Apple", new Double(17.1));
106        return dataset;
107    }
108
109    /**
110     * Creates a chart.
111     *
112     * @param dataset  the dataset.
113     *
114     * @return A chart.
115     */
116    private static JFreeChart createChart(PieDataset dataset) {
117
118        JFreeChart chart = ChartFactory.createPieChart(
119            "Smart Phones Manufactured / Q3 2011",  // chart title
120            dataset,            // data
121            false,              // no legend
122            true,               // tooltips
123            false               // no URL generation
124        );
125
126        // set a custom background for the chart
127        chart.setBackgroundPaint(new GradientPaint(new Point(0, 0), 
128                new Color(20, 20, 20), new Point(400, 200), Color.DARK_GRAY));
129
130        // customise the title position and font
131        TextTitle t = chart.getTitle();
132        t.setHorizontalAlignment(HorizontalAlignment.LEFT);
133        t.setPaint(new Color(240, 240, 240));
134        t.setFont(new Font("Arial", Font.BOLD, 26));
135
136        PiePlot plot = (PiePlot) chart.getPlot();
137        plot.setBackgroundPaint(null);
138        plot.setInteriorGap(0.04);
139        plot.setOutlineVisible(false);
140
141        // use gradients and white borders for the section colours
142        plot.setSectionPaint("Others", createGradientPaint(new Color(200, 200, 255), Color.BLUE));
143        plot.setSectionPaint("Samsung", createGradientPaint(new Color(255, 200, 200), Color.RED));
144        plot.setSectionPaint("Apple", createGradientPaint(new Color(200, 255, 200), Color.GREEN));
145        plot.setSectionPaint("Nokia", createGradientPaint(new Color(200, 255, 200), Color.YELLOW));
146        plot.setBaseSectionOutlinePaint(Color.WHITE);
147        plot.setSectionOutlinesVisible(true);
148        plot.setBaseSectionOutlineStroke(new BasicStroke(2.0f));
149
150        // customise the section label appearance
151        plot.setLabelFont(new Font("Courier New", Font.BOLD, 20));
152        plot.setLabelLinkPaint(Color.WHITE);
153        plot.setLabelLinkStroke(new BasicStroke(2.0f));
154        plot.setLabelOutlineStroke(null);
155        plot.setLabelPaint(Color.WHITE);
156        plot.setLabelBackgroundPaint(null);
157        
158        // add a subtitle giving the data source
159        TextTitle source = new TextTitle("Source: http://www.bbc.co.uk/news/business-15489523", 
160                new Font("Courier New", Font.PLAIN, 12));
161        source.setPaint(Color.WHITE);
162        source.setPosition(RectangleEdge.BOTTOM);
163        source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
164        chart.addSubtitle(source);
165        return chart;
166
167    }
168
169    /**
170     * A utility method for creating gradient paints.
171     * 
172     * @param c1  color 1.
173     * @param c2  color 2.
174     * 
175     * @return A radial gradient paint.
176     */
177    private static RadialGradientPaint createGradientPaint(Color c1, Color c2) {
178        Point2D center = new Point2D.Float(0, 0);
179        float radius = 200;
180        float[] dist = {0.0f, 1.0f};
181        return new RadialGradientPaint(center, radius, dist,
182                new Color[] {c1, c2});
183    }
184
185    /**
186     * Creates a panel for the demo (used by SuperDemo.java).
187     *
188     * @return A panel.
189     */
190    public static JPanel createDemoPanel() {
191        JFreeChart chart = createChart(createDataset());
192        chart.setPadding(new RectangleInsets(4, 8, 2, 2));
193        ChartPanel panel = new ChartPanel(chart);
194        panel.setMouseWheelEnabled(true);
195        panel.setPreferredSize(new Dimension(600, 300));
196        return panel;
197    }
198
199    /**
200     * Starting point for the demonstration application.
201     *
202     * @param args  ignored.
203     */
204    public static void main(String[] args) {
205
206        // ******************************************************************
207        //  More than 150 demo applications are included with the JFreeChart
208        //  Developer Guide...for more information, see:
209        //
210        //  >   http://www.object-refinery.com/jfreechart/guide.html
211        //
212        // ******************************************************************
213
214        PieChartDemo1 demo = new PieChartDemo1("JFreeChart: Pie Chart Demo 1");
215        demo.pack();
216        RefineryUtilities.centerFrameOnScreen(demo);
217        demo.setVisible(true);
218    }
219
220}
221