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Java > Open Source Codes > junit > swingui > ProgressBar


1 package junit.swingui;
2
3 import java.awt.Color JavaDoc;
4
5 import javax.swing.JProgressBar JavaDoc;
6
7 /**
8  * A progress bar showing the green/red status
9  */
10 class ProgressBar extends JProgressBar JavaDoc {
11     boolean fError= false;
12     
13     public ProgressBar() {
14         super();
15         setForeground(getStatusColor());
16     }
17     
18     protected Color JavaDoc getStatusColor() {
19         if (fError)
20             return Color.red;
21         return Color.green;
22     }
23         
24     public void reset() {
25         fError= false;
26         updateBarColor();
27         setValue(0);
28     }
29     
30     public void start(int total) {
31         setMaximum(total);
32         reset();
33     }
34     
35     public void step(int value, boolean successful) {
36         setValue(value);
37         if (!fError && !successful) {
38             fError= true;
39             updateBarColor();
40         }
41         }
42     
43     protected void updateBarColor() {
44         setForeground(getStatusColor());
45     }
46 }
47
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