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 * BarChartDemo1.java
029 * ------------------
030 * (C) Copyright 2003-2011, 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 (DG);
038 *
039 */
040
041package org.jfree.chart.demo;
042
043import java.awt.Color;
044import java.awt.Dimension;
045import java.awt.GradientPaint;
046
047import org.jfree.chart.ChartFactory;
048import org.jfree.chart.ChartPanel;
049import org.jfree.chart.JFreeChart;
050import org.jfree.chart.StandardChartTheme;
051import org.jfree.chart.axis.CategoryAxis;
052import org.jfree.chart.axis.CategoryLabelPositions;
053import org.jfree.chart.axis.NumberAxis;
054import org.jfree.chart.plot.CategoryPlot;
055import org.jfree.chart.plot.PlotOrientation;
056import org.jfree.chart.renderer.category.BarRenderer;
057import org.jfree.data.category.CategoryDataset;
058import org.jfree.data.category.DefaultCategoryDataset;
059import org.jfree.ui.ApplicationFrame;
060import org.jfree.ui.RefineryUtilities;
061
062/**
063 * A simple demonstration application showing how to create a bar chart.
064 */
065public class BarChartDemo1 extends ApplicationFrame {
066
067    private static final long serialVersionUID = 1L;
068
069    {
070        // set a theme using the new shadow generator feature available in
071        // 1.0.14 - for backwards compatibility it is not enabled by default
072        ChartFactory.setChartTheme(new StandardChartTheme("JFree/Shadow",
073                true));
074    }
075
076    /**
077     * Creates a new demo instance.
078     *
079     * @param title  the frame title.
080     */
081    public BarChartDemo1(String title) {
082        super(title);
083        CategoryDataset dataset = createDataset();
084        JFreeChart chart = createChart(dataset);
085        ChartPanel chartPanel = new ChartPanel(chart);
086        chartPanel.setFillZoomRectangle(true);
087        chartPanel.setMouseWheelEnabled(true);
088        chartPanel.setPreferredSize(new Dimension(500, 270));
089        setContentPane(chartPanel);
090    }
091
092    /**
093     * Returns a sample dataset.
094     *
095     * @return The dataset.
096     */
097    private static CategoryDataset createDataset() {
098
099        // row keys...
100        String series1 = "First";
101        String series2 = "Second";
102        String series3 = "Third";
103
104        // column keys...
105        String category1 = "Category 1";
106        String category2 = "Category 2";
107        String category3 = "Category 3";
108        String category4 = "Category 4";
109        String category5 = "Category 5";
110
111        // create the dataset...
112        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
113
114        dataset.addValue(1.0, series1, category1);
115        dataset.addValue(4.0, series1, category2);
116        dataset.addValue(3.0, series1, category3);
117        dataset.addValue(5.0, series1, category4);
118        dataset.addValue(5.0, series1, category5);
119
120        dataset.addValue(5.0, series2, category1);
121        dataset.addValue(7.0, series2, category2);
122        dataset.addValue(6.0, series2, category3);
123        dataset.addValue(8.0, series2, category4);
124        dataset.addValue(4.0, series2, category5);
125
126        dataset.addValue(4.0, series3, category1);
127        dataset.addValue(3.0, series3, category2);
128        dataset.addValue(2.0, series3, category3);
129        dataset.addValue(3.0, series3, category4);
130        dataset.addValue(6.0, series3, category5);
131
132        return dataset;
133
134    }
135
136    /**
137     * Creates a sample chart.
138     *
139     * @param dataset  the dataset.
140     *
141     * @return The chart.
142     */
143    private static JFreeChart createChart(CategoryDataset dataset) {
144
145        // create the chart...
146        JFreeChart chart = ChartFactory.createBarChart(
147            "Bar Chart Demo 1",       // chart title
148            "Category",               // domain axis label
149            "Value",                  // range axis label
150            dataset,                  // data
151            PlotOrientation.VERTICAL, // orientation
152            true,                     // include legend
153            true,                     // tooltips?
154            false                     // URLs?
155        );
156
157        // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
158
159        // set the background color for the chart...
160        chart.setBackgroundPaint(Color.white);
161
162        // get a reference to the plot for further customisation...
163        CategoryPlot plot = (CategoryPlot) chart.getPlot();
164
165        // ******************************************************************
166        //  More than 150 demo applications are included with the JFreeChart
167        //  Developer Guide...for more information, see:
168        //
169        //  >   http://www.object-refinery.com/jfreechart/guide.html
170        //
171        // ******************************************************************
172
173        // set the range axis to display integers only...
174        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
175        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
176
177        // disable bar outlines...
178        BarRenderer renderer = (BarRenderer) plot.getRenderer();
179        renderer.setDrawBarOutline(false);
180
181        // set up gradient paints for series...
182        GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue,
183                0.0f, 0.0f, new Color(0, 0, 64));
184        GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green,
185                0.0f, 0.0f, new Color(0, 64, 0));
186        GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red,
187                0.0f, 0.0f, new Color(64, 0, 0));
188        renderer.setSeriesPaint(0, gp0);
189        renderer.setSeriesPaint(1, gp1);
190        renderer.setSeriesPaint(2, gp2);
191
192        CategoryAxis domainAxis = plot.getDomainAxis();
193        domainAxis.setCategoryLabelPositions(
194                CategoryLabelPositions.createUpRotationLabelPositions(
195                        Math.PI / 6.0));
196        // OPTIONAL CUSTOMISATION COMPLETED.
197
198        return chart;
199
200    }
201
202    /**
203     * Starting point for the demonstration application.
204     *
205     * @param args  ignored.
206     */
207    public static void main(String[] args) {
208        BarChartDemo1 demo = new BarChartDemo1("Bar Chart Demo 1");
209        demo.pack();
210        RefineryUtilities.centerFrameOnScreen(demo);
211        demo.setVisible(true);
212    }
213
214}