Gantt Chart

com.keypoint
org.jfree
org.jfree.base
org.jfree.base.config
org.jfree.base.log
org.jfree.base.modules
org.jfree.chart
org.jfree.chart.annotations
org.jfree.chart.annotations.junit
org.jfree.chart.axis
org.jfree.chart.axis.junit
org.jfree.chart.block
org.jfree.chart.block.junit
org.jfree.chart.demo
org.jfree.chart.demo.resources
org.jfree.chart.encoders
org.jfree.chart.entity
org.jfree.chart.entity.junit
org.jfree.chart.event
org.jfree.chart.imagemap
org.jfree.chart.junit
org.jfree.chart.labels
org.jfree.chart.labels.junit
org.jfree.chart.needle
org.jfree.chart.plot
org.jfree.chart.plot.junit
org.jfree.chart.renderer
org.jfree.chart.renderer.category
org.jfree.chart.renderer.category.junit
org.jfree.chart.renderer.junit
org.jfree.chart.renderer.xy
org.jfree.chart.renderer.xy.junit
org.jfree.chart.resources
org.jfree.chart.servlet
org.jfree.chart.title
org.jfree.chart.title.junit
org.jfree.chart.tooltips
org.jfree.chart.ui
org.jfree.chart.ui.junit
org.jfree.chart.urls
org.jfree.chart.urls.junit
org.jfree.data
org.jfree.data.category
org.jfree.data.category.junit
org.jfree.data.contour
org.jfree.data.function
org.jfree.data.gantt
org.jfree.data.gantt.junit
org.jfree.data.general
org.jfree.data.general.junit
org.jfree.data.io
org.jfree.data.jdbc
org.jfree.data.junit
org.jfree.data.resources
org.jfree.data.statistics
org.jfree.data.statistics.junit
org.jfree.data.time
org.jfree.data.time.junit
org.jfree.data.xml
org.jfree.data.xy
org.jfree.data.xy.junit
org.jfree.date
org.jfree.date.junit
org.jfree.demo
org.jfree.io
org.jfree.io.junit
org.jfree.junit
org.jfree.layout
org.jfree.resources
org.jfree.text
org.jfree.text.junit
org.jfree.threads
org.jfree.ui
org.jfree.ui.about
org.jfree.ui.about.resources
org.jfree.ui.action
org.jfree.ui.junit
org.jfree.ui.tabbedui
org.jfree.util
org.jfree.util.junit
org.jfree.xml
org.jfree.xml.attributehandlers
org.jfree.xml.factory.objects
org.jfree.xml.generator
org.jfree.xml.generator.model
org.jfree.xml.parser
org.jfree.xml.parser.coretypes
org.jfree.xml.util
org.jfree.xml.writer
org.jfree.xml.writer.coretypes

Code:


package org.jfree.chart.demo;

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.data.category.IntervalCategoryDataset;
import org.jfree.data.gantt.Task;
import org.jfree.data.gantt.TaskSeries;
import org.jfree.data.gantt.TaskSeriesCollection;
import org.jfree.data.time.SimpleTimePeriod;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;


public class GanttDemo1 extends ApplicationFrame {

 
    public GanttDemo1(final String title) {

        super(title);

        final IntervalCategoryDataset dataset = createDataset();
        final JFreeChart chart = createChart(dataset);

        // add the chart to a panel...
        final ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(800, 470));
        setContentPane(chartPanel);

    }

                                                     
             
   
    /**
    * Creates a sample dataset for a Gantt chart.
    *
    * @return The dataset.
    */
    public static IntervalCategoryDataset createDataset() {

        final TaskSeries s1 = new TaskSeries("Scheduled");
        s1.add(new Task("Write Proposal",
              new SimpleTimePeriod(date(1, Calendar.APRIL, 2010),
                                    date(5, Calendar.APRIL, 2010))));
        s1.add(new Task("Obtain Approval",
              new SimpleTimePeriod(date(9, Calendar.APRIL, 2010),
                                    date(9, Calendar.APRIL, 2010))));
        s1.add(new Task("Requirements Analysis",
              new SimpleTimePeriod(date(10, Calendar.APRIL, 2010),
                                    date(5, Calendar.MAY, 2010))));
        s1.add(new Task("Design Phase",
              new SimpleTimePeriod(date(6, Calendar.MAY, 2010),
                                    date(30, Calendar.MAY, 2010))));
        s1.add(new Task("Design Signoff",
              new SimpleTimePeriod(date(2, Calendar.JUNE, 2010),
                                    date(2, Calendar.JUNE, 2010))));
        s1.add(new Task("Alpha Implementation",
              new SimpleTimePeriod(date(3, Calendar.JUNE, 2010),
                                    date(31, Calendar.JULY, 2010))));
        s1.add(new Task("Design Review",
              new SimpleTimePeriod(date(1, Calendar.AUGUST, 2010),
                                    date(8, Calendar.AUGUST, 2010))));
        s1.add(new Task("Revised Design Signoff",
              new SimpleTimePeriod(date(10, Calendar.AUGUST, 2010),
                                    date(10, Calendar.AUGUST, 2010))));
        s1.add(new Task("Beta Implementation",
              new SimpleTimePeriod(date(12, Calendar.AUGUST, 2010),
                                    date(12, Calendar.SEPTEMBER, 2010))));
        s1.add(new Task("Testing",
              new SimpleTimePeriod(date(13, Calendar.SEPTEMBER, 2010),
                                    date(31, Calendar.OCTOBER, 2010))));
        s1.add(new Task("Final Implementation",
              new SimpleTimePeriod(date(1, Calendar.NOVEMBER, 2010),
                                    date(15, Calendar.NOVEMBER, 2010))));
        s1.add(new Task("Signoff",
              new SimpleTimePeriod(date(28, Calendar.NOVEMBER, 2010),
                                    date(30, Calendar.NOVEMBER, 2010))));

        final TaskSeries s2 = new TaskSeries("Actual");
        s2.add(new Task("Write Proposal",
              new SimpleTimePeriod(date(1, Calendar.APRIL, 2010),
                                    date(5, Calendar.APRIL, 2010))));
        s2.add(new Task("Obtain Approval",
              new SimpleTimePeriod(date(9, Calendar.APRIL, 2010),
                                    date(9, Calendar.APRIL, 2010))));
        s2.add(new Task("Requirements Analysis",
              new SimpleTimePeriod(date(10, Calendar.APRIL, 2010),
                                    date(15, Calendar.MAY, 2010))));
        s2.add(new Task("Design Phase",
              new SimpleTimePeriod(date(15, Calendar.MAY, 2010),
                                    date(17, Calendar.JUNE, 2010))));
        s2.add(new Task("Design Signoff",
              new SimpleTimePeriod(date(30, Calendar.JUNE, 2010),
                                    date(30, Calendar.JUNE, 2010))));
        s2.add(new Task("Alpha Implementation",
              new SimpleTimePeriod(date(1, Calendar.JULY, 2010),
                                    date(12, Calendar.SEPTEMBER, 2010))));
        s2.add(new Task("Design Review",
              new SimpleTimePeriod(date(12, Calendar.SEPTEMBER, 2010),
                                    date(22, Calendar.SEPTEMBER, 2010))));
        s2.add(new Task("Revised Design Signoff",
              new SimpleTimePeriod(date(25, Calendar.SEPTEMBER, 2010),
                                    date(27, Calendar.SEPTEMBER, 2010))));
        s2.add(new Task("Beta Implementation",
              new SimpleTimePeriod(date(27, Calendar.SEPTEMBER, 2010),
                                    date(30, Calendar.OCTOBER, 2010))));
        s2.add(new Task("Testing",
              new SimpleTimePeriod(date(31, Calendar.OCTOBER, 2010),
                                    date(17, Calendar.NOVEMBER, 2010))));
        s2.add(new Task("Final Implementation",
              new SimpleTimePeriod(date(18, Calendar.NOVEMBER, 2010),
                                    date(5, Calendar.DECEMBER, 2010))));
        s2.add(new Task("Signoff",
              new SimpleTimePeriod(date(10, Calendar.DECEMBER, 2010),
                                    date(11, Calendar.DECEMBER, 2010))));

        final TaskSeriesCollection collection = new TaskSeriesCollection();
        collection.add(s1);
        collection.add(s2);

        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;

    }
       
    /**
    * Creates a chart.
    *
    * @param dataset  the dataset.
    *
    * @return The chart.
    */
    private JFreeChart createChart(final IntervalCategoryDataset dataset) {
        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
        );   
//        chart.getCategoryPlot().getDomainAxis().setMaxCategoryLabelWidthRatio(10.0f);
        return chart;   
    }
   
    /**
    * Starting point for the demonstration application.
    *
    * @param args  ignored.
    */
    public static void main(final String[] args) {

        final GanttDemo1 demo = new GanttDemo1("Gantt Chart Demo 1");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}