|
1 package com.sshtools.ui.awt;
2
3 import java.awt.Canvas  ;
4 import java.awt.Color ;
5 import java.awt.Dimension ;
6 import java.awt.FontMetrics ;
7 import java.awt.Graphics ;
8 import java.awt.Rectangle ;
9
10 public class ProgressBar extends Canvas {
11
12 public ProgressBar(int min, int max, int val) {
13 this.min = min;
14 this.max = max;
15 this.val = val;
16 }
17
18 public Dimension getPreferredSize() {
19 return new Dimension (100, 16);
20 }
21
22 public Dimension getMinimumSize() {
23 return new Dimension (super.getMinimumSize().width, 16);
24 }
25
26 public int getMax() {
27 return max;
28 }
29
30 public void setMax(int max) {
31 this.max = max;
32 repaint();
33 }
34
35 public int getMin() {
36 return min;
37 }
38
39 public void setMin(int min) {
40 this.min = min;
41 repaint();
42 }
43
44 public int getVal() {
45 return val;
46 }
47
48 public void setVal(int val) {
49 this.val = val;
50 paintAll(getGraphics());
51 }
52
53 public Color getProgressColor() {
54 return progressColor;
55 }
56
57 public void setProgressColor(Color progressColor) {
58 this.progressColor = progressColor;
59 repaint();
60 }
61
62 public String getProgressString() {
63 return progressString;
64 }
65
66 public void setProgressString(String progressString) {
67 this.progressString = progressString;
68 repaint();
69 }
70
71 public void paint(Graphics g) {
72 super.paint(g);
73 Rectangle bounds = getBounds();
74 g.setColor(getForeground());
75 g.drawRect(0, 0, bounds.width, bounds.height);
76 g.setColor(progressColor != null ? progressColor : Color.blue);
77 float scale = (float) val / ((float) max - (float) min);
78 g.fillRect(1, 1, (int) ((float) (bounds.width - 2) * scale),
79 bounds.height - 2);
80 String s = progressString != null ? progressString : (int) (scale * 100F)
81 + "%"; FontMetrics fm = getFontMetrics(getFont());
83 int swidth = fm.stringWidth(s);
84 g.setColor(getForeground());
85 g.drawString(s, (bounds.width - swidth) / 2, bounds.height / 2
86 + ( fm.getMaxAscent() / 2));
87 }
88
89 private int min;
90 private int max;
91 private int val;
92 private Color progressColor;
93 private String progressString;
94 } |
Popular Tags |
Java API By Example, From Geeks To Geeks.