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jfreechart example source code file (

This example jfreechart source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

barrenderer, category, category, categoryplot, chartcomposite, defaultcategorydataset, display, jfreechart, jfreechart, numberaxis, shell, string, string, swtbarchartdemo1

The jfreechart source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
 * Project Info:
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 * ---------------------
 * ---------------------
 * (C) Copyright 2006-2008, by Object Refinery Limited and Contributors.
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   Henry Proudhon (henry.proudhon AT
 * Changes
 * -------
 * 23-Aug-2006 : New class (DG);

package org.jfree.experimental.chart.swt.demo;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.StandardBarPainter;
import org.jfree.experimental.chart.swt.ChartComposite;

 * An SWT demo.
public class SWTBarChartDemo1 {

     * Returns a sample dataset.
     * @return The dataset.
    private static CategoryDataset createDataset() {

        // row keys...
        String series1 = "First";
        String series2 = "Second";
        String series3 = "Third";

        // column keys...
        String category1 = "Category 1";
        String category2 = "Category 2";
        String category3 = "Category 3";
        String category4 = "Category 4";
        String category5 = "Category 5";

        // create the dataset...
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();

        dataset.addValue(1.0, series1, category1);
        dataset.addValue(4.0, series1, category2);
        dataset.addValue(3.0, series1, category3);
        dataset.addValue(5.0, series1, category4);
        dataset.addValue(5.0, series1, category5);

        dataset.addValue(5.0, series2, category1);
        dataset.addValue(7.0, series2, category2);
        dataset.addValue(6.0, series2, category3);
        dataset.addValue(8.0, series2, category4);
        dataset.addValue(4.0, series2, category5);

        dataset.addValue(4.0, series3, category1);
        dataset.addValue(3.0, series3, category2);
        dataset.addValue(2.0, series3, category3);
        dataset.addValue(3.0, series3, category4);
        dataset.addValue(6.0, series3, category5);

        return dataset;


     * Creates a sample chart.
     * @param dataset  the dataset.
     * @return The chart.
    private static JFreeChart createChart(CategoryDataset dataset) {

        // create the chart...
        JFreeChart chart = ChartFactory.createBarChart(
            "SWTBarChartDemo1",       // chart title
            "Category",               // domain axis label
            "Value",                  // range axis label
            dataset,                  // data
            PlotOrientation.VERTICAL, // orientation
            true,                     // include legend
            true,                     // tooltips?
            false                     // URLs?


        // get a reference to the plot for further customisation...
        CategoryPlot plot = (CategoryPlot) chart.getPlot();

        // set the range axis to display integers only...
        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();

        // disable bar outlines...
        BarRenderer renderer = (BarRenderer) plot.getRenderer();

        // the SWTGraphics2D class doesn't handle GradientPaint well, so
        // replace the gradient painter from the default theme with a
        // standard painter...
        renderer.setBarPainter(new StandardBarPainter());

        CategoryAxis domainAxis = plot.getDomainAxis();
                        Math.PI / 6.0));

        return chart;


     * Starting point for the demonstration application.
     * @param args  ignored.
    public static void main(String[] args) {
        JFreeChart chart = createChart(createDataset());
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setSize(600, 300);
        shell.setLayout(new FillLayout());
        shell.setText("Test for jfreechart running with SWT");
        ChartComposite frame = new ChartComposite(shell, SWT.NONE, chart,
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())


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