[ Java 代碼範本 ] JFreeChart : Gantt Chart - XYTaskData set (1)

來源自 這裡 
UI 效果: (jfreechart-1.0.14) 
 

範例代碼: 
- XYTaskDatasetDemo1.java 

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1. package charts.gantt;  
2.   
3. import java.awt.Color;  
4. import java.awt.Dimension;  
5. import java.util.Date;  
6.   
7. import javax.swing.JPanel;  
8.   
9. import org.jfree.chart.ChartFactory;  
10. import org.jfree.chart.ChartPanel;  
11. import org.jfree.chart.ChartUtilities;  
12. import org.jfree.chart.JFreeChart;  
13. import org.jfree.chart.axis.DateAxis;  
14. import org.jfree.chart.axis.SymbolAxis;  
15. import org.jfree.chart.plot.PlotOrientation;  
16. import org.jfree.chart.plot.XYPlot;  
17. import org.jfree.chart.renderer.xy.XYBarRenderer;  
18. import org.jfree.data.gantt.Task;  
19. import org.jfree.data.gantt.TaskSeries;  
20. import org.jfree.data.gantt.TaskSeriesCollection;  
21. import org.jfree.data.gantt.XYTaskDataset;  
22. import org.jfree.data.time.Day;  
23. import org.jfree.data.time.Hour;  
24. import org.jfree.data.time.RegularTimePeriod;  
25. import org.jfree.data.time.TimeSeries;  
26. import org.jfree.data.time.TimeSeriesDataItem;  
27. import org.jfree.data.time.Year;  
28. import org.jfree.data.xy.IntervalXYDataset;  
29. import org.jfree.ui.ApplicationFrame;  
30. import org.jfree.ui.RefineryUtilities;  
31.   
32. public class XYTaskDatasetDemo1 extends ApplicationFrame {  
33.     public XYTaskDatasetDemo1(String paramString) {  
34.         super(paramString);  
35.         JPanel localJPanel = createDemoPanel();  
36.         localJPanel.setPreferredSize(new Dimension(500, 300));  
37.         setContentPane(localJPanel);  
38.     }  
39.   
40.     private static JFreeChart createChart(  
41.             IntervalXYDataset paramIntervalXYDataset) {  
42.         JFreeChart localJFreeChart = ChartFactory.createXYBarChart(  
43.                 "XYTaskDatasetDemo1", "Resource", false, "Timing",  
44.                 paramIntervalXYDataset, PlotOrientation.HORIZONTAL, true,  
45.                 false, false);  
46.         localJFreeChart.setBackgroundPaint(Color.white);  
47.         XYPlot localXYPlot = (XYPlot) localJFreeChart.getPlot();  
48.         SymbolAxis localSymbolAxis = new SymbolAxis("Series", new String[] {  
49.                 "Team A", "Team B", "Team C", "Team D" });  
50.         localSymbolAxis.setGridBandsVisible(false);  
51.         localXYPlot.setDomainAxis(localSymbolAxis);  
52.         XYBarRenderer localXYBarRenderer = (XYBarRenderer) localXYPlot  
53.                 .getRenderer();  
54.         localXYBarRenderer.setUseYInterval(true);  
55.         localXYPlot.setRangeAxis(new DateAxis("Timing"));  
56.         ChartUtilities.applyCurrentTheme(localJFreeChart);  
57.         return localJFreeChart;  
58.     }  
59.   
60.     public static JPanel createDemoPanel() {  
61.         return new ChartPanel(createChart(createDataset()));  
62.     }  
63.   
64.     private static IntervalXYDataset createDataset() {  
65.         return new XYTaskDataset(createTasks());  
66.     }  
67.   
68.     private static TaskSeriesCollection createTasks() {  
69.         TimeSeries timeseries = new TimeSeries("L&G European Index Trust");  
70.         RegularTimePeriod rtp = new Year(new Date());  
71.         timeseries.add(new TimeSeriesDataItem(rtp, WIDTH));  
72.   
73.         TaskSeriesCollection localTaskSeriesCollection = new TaskSeriesCollection();  
74.         TaskSeries localTaskSeries1 = new TaskSeries("Team A");  
75.         localTaskSeries1.add(new Task("T1a", new Hour(11, new Day())));  
76.         localTaskSeries1.add(new Task("T1b", new Hour(14, new Day())));  
77.         localTaskSeries1.add(new Task("T1c", new Hour(16, new Day())));  
78.         TaskSeries localTaskSeries2 = new TaskSeries("Team B");  
79.         localTaskSeries2.add(new Task("T2a", new Hour(13, new Day())));  
80.         localTaskSeries2.add(new Task("T2b", new Hour(19, new Day())));  
81.         localTaskSeries2.add(new Task("T2c", new Hour(21, new Day())));  
82.         TaskSeries localTaskSeries3 = new TaskSeries("Team C");  
83.         localTaskSeries3.add(new Task("T3a", new Hour(13, new Day())));  
84.         localTaskSeries3.add(new Task("T3b", new Hour(19, new Day())));  
85.         localTaskSeries3.add(new Task("T3c", new Hour(21, new Day())));  
86.         TaskSeries localTaskSeries4 = new TaskSeries("Team D");  
87.         localTaskSeries4.add(new Task("T4a", new Day()));  
88.         localTaskSeriesCollection.add(localTaskSeries1);  
89.         localTaskSeriesCollection.add(localTaskSeries2);  
90.         localTaskSeriesCollection.add(localTaskSeries3);  
91.         localTaskSeriesCollection.add(localTaskSeries4);  
92.         return localTaskSeriesCollection;  
93.     }  
94.   
95.     public static void main(String[] paramArrayOfString) {  
96.         XYTaskDatasetDemo1 localXYTaskDatasetDemo1 = new XYTaskDatasetDemo1(  
97.                 "JFreeChart : XYTaskDatasetDemo1.java");  
98.         localXYTaskDatasetDemo1.pack();  
99.         RefineryUtilities.centerFrameOnScreen(localXYTaskDatasetDemo1);  
100.         localXYTaskDatasetDemo1.setVisible(true);  
101.     }  
102. }