Java/Chart/Gantt Chart

Материал из Java эксперт
Версия от 09:52, 1 июня 2010; Admin (обсуждение | вклад) (1 версия)
(разн.) ← Предыдущая | Текущая версия (разн.) | Следующая → (разн.)
Перейти к: навигация, поиск

JFreeChart: Gantt Chart Sample

JFreeChart: Gantt Demo 1

   <source lang="java">

/* ===========================================================

* 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.]
*
* ---------------
* GanttDemo1.java
* ---------------
* (C) Copyright 2002-2004, by Object Refinery Limited.
*
* Original Author:  David Gilbert (for Object Refinery Limited);
* Contributor(s):   -;
*
* $Id: GanttDemo1.java,v 1.12 2004/04/26 19:11:54 taqua Exp $
*
* Changes
* -------
* 06-Jun-2002 : Version 1 (DG);
* 10-Oct-2002 : Modified to use DemoDatasetFactory (DG);
* 10-Jan-2003 : Renamed GanttDemo --> GanttDemo1 (DG);
* 16-Oct-2003 : Shifted dataset from DemoDatasetFactory to this class (DG);
*
*/

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; /**

* A simple demonstration application showing how to create a Gantt chart.
*

* This demo is intended to show the conceptual approach rather than being a polished * implementation. * * */ public class GanttDemo1 extends ApplicationFrame { /** * Creates a new demo. * * @param title the frame title. */ 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(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.ru/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. * * @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, 2001), date(5, Calendar.APRIL, 2001)))); s1.add(new Task("Obtain Approval", new SimpleTimePeriod(date(9, Calendar.APRIL, 2001), date(9, Calendar.APRIL, 2001)))); s1.add(new Task("Requirements Analysis", new SimpleTimePeriod(date(10, Calendar.APRIL, 2001), date(5, Calendar.MAY, 2001)))); s1.add(new Task("Design Phase", new SimpleTimePeriod(date(6, Calendar.MAY, 2001), date(30, Calendar.MAY, 2001)))); s1.add(new Task("Design Signoff", new SimpleTimePeriod(date(2, Calendar.JUNE, 2001), date(2, Calendar.JUNE, 2001)))); s1.add(new Task("Alpha Implementation", new SimpleTimePeriod(date(3, Calendar.JUNE, 2001), date(31, Calendar.JULY, 2001)))); s1.add(new Task("Design Review", new SimpleTimePeriod(date(1, Calendar.AUGUST, 2001), date(8, Calendar.AUGUST, 2001)))); s1.add(new Task("Revised Design Signoff", new SimpleTimePeriod(date(10, Calendar.AUGUST, 2001), date(10, Calendar.AUGUST, 2001)))); s1.add(new Task("Beta Implementation", new SimpleTimePeriod(date(12, Calendar.AUGUST, 2001), date(12, Calendar.SEPTEMBER, 2001)))); s1.add(new Task("Testing", new SimpleTimePeriod(date(13, Calendar.SEPTEMBER, 2001), date(31, Calendar.OCTOBER, 2001)))); s1.add(new Task("Final Implementation", new SimpleTimePeriod(date(1, Calendar.NOVEMBER, 2001), date(15, Calendar.NOVEMBER, 2001)))); s1.add(new Task("Signoff", new SimpleTimePeriod(date(28, Calendar.NOVEMBER, 2001), date(30, Calendar.NOVEMBER, 2001)))); final TaskSeries s2 = new TaskSeries("Actual"); s2.add(new Task("Write Proposal", new SimpleTimePeriod(date(1, Calendar.APRIL, 2001), date(5, Calendar.APRIL, 2001)))); s2.add(new Task("Obtain Approval", new SimpleTimePeriod(date(9, Calendar.APRIL, 2001), date(9, Calendar.APRIL, 2001)))); s2.add(new Task("Requirements Analysis", new SimpleTimePeriod(date(10, Calendar.APRIL, 2001), date(15, Calendar.MAY, 2001)))); s2.add(new Task("Design Phase", new SimpleTimePeriod(date(15, Calendar.MAY, 2001), date(17, Calendar.JUNE, 2001)))); s2.add(new Task("Design Signoff", new SimpleTimePeriod(date(30, Calendar.JUNE, 2001), date(30, Calendar.JUNE, 2001)))); s2.add(new Task("Alpha Implementation", new SimpleTimePeriod(date(1, Calendar.JULY, 2001), date(12, Calendar.SEPTEMBER, 2001)))); s2.add(new Task("Design Review", new SimpleTimePeriod(date(12, Calendar.SEPTEMBER, 2001), date(22, Calendar.SEPTEMBER, 2001)))); s2.add(new Task("Revised Design Signoff", new SimpleTimePeriod(date(25, Calendar.SEPTEMBER, 2001), date(27, Calendar.SEPTEMBER, 2001)))); s2.add(new Task("Beta Implementation", new SimpleTimePeriod(date(27, Calendar.SEPTEMBER, 2001), date(30, Calendar.OCTOBER, 2001)))); s2.add(new Task("Testing", new SimpleTimePeriod(date(31, Calendar.OCTOBER, 2001), date(17, Calendar.NOVEMBER, 2001)))); s2.add(new Task("Final Implementation", new SimpleTimePeriod(date(18, Calendar.NOVEMBER, 2001), date(5, Calendar.DECEMBER, 2001)))); s2.add(new Task("Signoff", new SimpleTimePeriod(date(10, Calendar.DECEMBER, 2001), date(11, Calendar.DECEMBER, 2001)))); final TaskSeriesCollection collection = new TaskSeriesCollection(); collection.add(s1); collection.add(s2); return collection; } /** * Utility method for creating Date 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); } } </source>

JFreeChart: Gantt Demo 2 with multiple bars per task

   <source lang="java">

/* ===========================================================

* 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.ru/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 Date 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);
   }

}


      </source>