JFreeChart: Gantt Demo 2 with multiple bars per
task
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* 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., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ---------------
* GanttDemo2.java
* ---------------
* (C) Copyright 2003, 2004, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: GanttDemo2.java,v 1.12 2004/04/26 19:11:54 taqua Exp $
*
* Changes
* -------
* 10-Jan-2003 : Version 1 (based on GanttDemo1) (DG);
* 16-Sep-2003 : Transferred dataset creation from DemoDatasetFactory to this class (DG);
*
*/
package org.jfree.chart.demo;
import java.awt.Color;
import java.util.Calendar;
import java.util.Date;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.data.category.IntervalCategoryDataset;
import org.jfree.data.gantt.Task;
import org.jfree.data.gantt.TaskSeries;
import org.jfree.data.gantt.TaskSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A simple demonstration application showing how to create a Gantt chart with multiple bars per
* task.
*
*/
public class GanttDemo2 extends ApplicationFrame {
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public GanttDemo2(final String title) {
super(title);
final IntervalCategoryDataset dataset = createSampleDataset();
// create the chart...
final JFreeChart chart = ChartFactory.createGanttChart(
"Gantt Chart Demo", // chart title
"Task", // domain axis label
"Date", // range axis label
dataset, // data
true, // include legend
true, // tooltips
false // urls
);
final CategoryPlot plot = (CategoryPlot) chart.getPlot();
// plot.getDomainAxis().setMaxCategoryLabelWidthRatio(10.0f);
final CategoryItemRenderer renderer = plot.getRenderer();
renderer.setSeriesPaint(0, Color.blue);
// add the chart to a panel...
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
// ****************************************************************************
// * JFREECHART DEVELOPER GUIDE *
// * The JFreeChart Developer Guide, written by David Gilbert, is available *
// * to purchase from Object Refinery Limited: *
// * *
// * http://www.object-refinery.com/jfreechart/guide.html *
// * *
// * Sales are used to provide funding for the JFreeChart project - please *
// * support us so that we can continue developing free software. *
// ****************************************************************************
/**
* Creates a sample dataset for a Gantt chart, using sub-tasks. In general, you won't
* hard-code the dataset in this way - it's done here so that the demo is self-contained.
*
* @return The dataset.
*/
private IntervalCategoryDataset createSampleDataset() {
final TaskSeries s1 = new TaskSeries("Scheduled");
final Task t1 = new Task(
"Write Proposal", date(1, Calendar.APRIL, 2001), date(5, Calendar.APRIL, 2001)
);
t1.setPercentComplete(1.00);
s1.add(t1);
final Task t2 = new Task(
"Obtain Approval", date(9, Calendar.APRIL, 2001), date(9, Calendar.APRIL, 2001)
);
t2.setPercentComplete(1.00);
s1.add(t2);
// here is a task split into two subtasks...
final Task t3 = new Task(
"Requirements Analysis",
date(10, Calendar.APRIL, 2001), date(5, Calendar.MAY, 2001)
);
final Task st31 = new Task(
"Requirements 1",
date(10, Calendar.APRIL, 2001), date(25, Calendar.APRIL, 2001)
);
st31.setPercentComplete(1.0);
final Task st32 = new Task(
"Requirements 2",
date(1, Calendar.MAY, 2001), date(5, Calendar.MAY, 2001)
);
st32.setPercentComplete(1.0);
t3.addSubtask(st31);
t3.addSubtask(st32);
s1.add(t3);
// and another...
final Task t4 = new Task(
"Design Phase",
date(6, Calendar.MAY, 2001), date(30, Calendar.MAY, 2001)
);
final Task st41 = new Task(
"Design 1",
date(6, Calendar.MAY, 2001), date(10, Calendar.MAY, 2001)
);
st41.setPercentComplete(1.0);
final Task st42 = new Task(
"Design 2",
date(15, Calendar.MAY, 2001), date(20, Calendar.MAY, 2001)
);
st42.setPercentComplete(1.0);
final Task st43 = new Task(
"Design 3",
date(23, Calendar.MAY, 2001), date(30, Calendar.MAY, 2001)
);
st43.setPercentComplete(0.50);
t4.addSubtask(st41);
t4.addSubtask(st42);
t4.addSubtask(st43);
s1.add(t4);
final Task t5 = new Task(
"Design Signoff", date(2, Calendar.JUNE, 2001), date(2, Calendar.JUNE, 2001)
);
s1.add(t5);
final Task t6 = new Task(
"Alpha Implementation", date(3, Calendar.JUNE, 2001), date(31, Calendar.JULY, 2001)
);
t6.setPercentComplete(0.60);
s1.add(t6);
final Task t7 = new Task(
"Design Review", date(1, Calendar.AUGUST, 2001), date(8, Calendar.AUGUST, 2001)
);
t7.setPercentComplete(0.0);
s1.add(t7);
final Task t8 = new Task(
"Revised Design Signoff",
date(10, Calendar.AUGUST, 2001), date(10, Calendar.AUGUST, 2001)
);
t8.setPercentComplete(0.0);
s1.add(t8);
final Task t9 = new Task(
"Beta Implementation",
date(12, Calendar.AUGUST, 2001), date(12, Calendar.SEPTEMBER, 2001)
);
t9.setPercentComplete(0.0);
s1.add(t9);
final Task t10 = new Task(
"Testing", date(13, Calendar.SEPTEMBER, 2001), date(31, Calendar.OCTOBER, 2001)
);
t10.setPercentComplete(0.0);
s1.add(t10);
final Task t11 = new Task(
"Final Implementation",
date(1, Calendar.NOVEMBER, 2001), date(15, Calendar.NOVEMBER, 2001)
);
t11.setPercentComplete(0.0);
s1.add(t11);
final Task t12 = new Task(
"Signoff", date(28, Calendar.NOVEMBER, 2001), date(30, Calendar.NOVEMBER, 2001)
);
t12.setPercentComplete(0.0);
s1.add(t12);
final TaskSeriesCollection collection = new TaskSeriesCollection();
collection.add(s1);
return collection;
}
/**
* Utility method for creating <code>Date</code> objects.
*
* @param day the date.
* @param month the month.
* @param year the year.
*
* @return a date.
*/
private static Date date(final int day, final int month, final int year) {
final Calendar calendar = Calendar.getInstance();
calendar.set(year, month, day);
final Date result = calendar.getTime();
return result;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final GanttDemo2 demo = new GanttDemo2("Gantt Chart Demo 2");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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