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1
3 package com.sshtools.ui.swing;
4
5 import java.awt.Color  ;
6 import java.awt.Component ;
7 import java.awt.Graphics ;
8 import javax.swing.Icon ;
9 import javax.swing.SwingConstants ;
10 import javax.swing.UIManager ;
11
12 public class ArrowIcon implements Icon , SwingConstants {
13 private Color shadow;
14 private Color darkShadow;
15 private Color highlight;
16 private int direction;
17
18 public ArrowIcon(int direction, Color shadow, Color darkShadow, Color highlight) {
19 this.shadow = shadow;
20 this.darkShadow = darkShadow;
21 this.highlight = highlight;
22 setDirection(direction);
23 }
24
25 public ArrowIcon(int direction) {
26 this(direction, UIManager.getColor("controlShadow"), UIManager.getColor("controlDkShadow"), UIManager
27 .getColor("controlLtHighlight"));
28 }
29
30 public int getIconHeight() {
31 return 16;
32 }
33
34 public int getIconWidth() {
35 return 16;
36 }
37
38 public int getDirection() {
39 return direction;
40 }
41
42 public void setDirection(int dir) {
43 direction = dir;
44 }
45
46 public void paintIcon(Component c, Graphics g, int x, int y) {
47 int h = getIconHeight();
48 int w = getIconWidth();
49 int size = Math.min((h - 4) / 3, (w - 4) / 3);
50 size = Math.max(size, 2);
51 paintTriangle(g, x + ((w - size) / 2), y + ((h - size) / 2), size, direction, true);
52 }
53
54 public void paintTriangle(Graphics g, int x, int y, int size, int direction, boolean isEnabled) {
55 Color oldColor = g.getColor();
56 int mid, i, j;
57 j = 0;
58 size = Math.max(size, 2);
59 mid = (size / 2) - 1;
60 g.translate(x, y);
61 if (isEnabled)
62 g.setColor(darkShadow);
63 else
64 g.setColor(shadow);
65 switch (direction) {
66 case NORTH:
67 for (i = 0; i < size; i++) {
68 g.drawLine(mid - i, i, mid + i, i);
69 }
70 if (!isEnabled) {
71 g.setColor(highlight);
72 g.drawLine(mid - i + 2, i, mid + i, i);
73 }
74 break;
75 case SOUTH:
76 if (!isEnabled) {
77 g.translate(1, 1);
78 g.setColor(highlight);
79 for (i = size - 1; i >= 0; i--) {
80 g.drawLine(mid - i, j, mid + i, j);
81 j++;
82 }
83 g.translate(-1, -1);
84 g.setColor(shadow);
85 }
86 j = 0;
87 for (i = size - 1; i >= 0; i--) {
88 g.drawLine(mid - i, j, mid + i, j);
89 j++;
90 }
91 break;
92 case WEST:
93 for (i = 0; i < size; i++) {
94 g.drawLine(i, mid - i, i, mid + i);
95 }
96 if (!isEnabled) {
97 g.setColor(highlight);
98 g.drawLine(i, mid - i + 2, i, mid + i);
99 }
100 break;
101 case EAST:
102 if (!isEnabled) {
103 g.translate(1, 1);
104 g.setColor(highlight);
105 for (i = size - 1; i >= 0; i--) {
106 g.drawLine(j, mid - i, j, mid + i);
107 j++;
108 }
109 g.translate(-1, -1);
110 g.setColor(shadow);
111 }
112 j = 0;
113 for (i = size - 1; i >= 0; i--) {
114 g.drawLine(j, mid - i, j, mid + i);
115 j++;
116 }
117 break;
118 }
119 g.translate(-x, -y);
120 g.setColor(oldColor);
121 }
122 } |
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