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1
7
8 package com.sun.java.swing.plaf.motif;
9
10 import javax.swing.*;
11 import javax.swing.event.*;
12 import javax.swing.plaf.*;
13 import javax.swing.plaf.basic.BasicArrowButton  ;
14
15 import java.awt.*;
16 import java.awt.event.*;
17
18
28 public class MotifScrollBarButton extends BasicArrowButton
29 {
30 private Color darkShadow = UIManager.getColor("controlShadow");
31 private Color lightShadow = UIManager.getColor("controlLtHighlight");
32
33
34 public MotifScrollBarButton(int direction)
35 {
36 super(direction);
37
38 switch (direction) {
39 case NORTH:
40 case SOUTH:
41 case EAST:
42 case WEST:
43 this.direction = direction;
44 break;
45 default:
46 throw new IllegalArgumentException ("invalid direction");
47 }
48
49 setRequestFocusEnabled(false);
50 setOpaque(true);
51 setBackground(UIManager.getColor("ScrollBar.background"));
52 setForeground(UIManager.getColor("ScrollBar.foreground"));
53 }
54
55
56 public Dimension getPreferredSize() {
57 switch (direction) {
58 case NORTH:
59 case SOUTH:
60 return new Dimension(11, 12);
61 case EAST:
62 case WEST:
63 default:
64 return new Dimension(12, 11);
65 }
66 }
67
68 public Dimension getMinimumSize() {
69 return getPreferredSize();
70 }
71
72 public Dimension getMaximumSize() {
73 return getPreferredSize();
74 }
75
76 public boolean isFocusTraversable() {
77 return false;
78 }
79
80 public void paint(Graphics g)
81 {
82 int w = getWidth();
83 int h = getHeight();
84
85 if (isOpaque()) {
86 g.setColor(getBackground());
87 g.fillRect(0, 0, w, h);
88 }
89
90 boolean isPressed = getModel().isPressed();
91 Color lead = (isPressed) ? darkShadow : lightShadow;
92 Color trail = (isPressed) ? lightShadow : darkShadow;
93 Color fill = getBackground();
94
95 int cx = w / 2;
96 int cy = h / 2;
97 int s = Math.min(w, h);
98
99 switch (direction) {
100 case NORTH:
101 g.setColor(lead);
102 g.drawLine(cx, 0, cx, 0);
103 for (int x = cx - 1, y = 1, dx = 1; y <= s - 2; y += 2) {
104 g.setColor(lead);
105 g.drawLine(x, y, x, y);
106 if (y >= (s - 2)) {
107 g.drawLine(x, y + 1, x, y + 1);
108 }
109 g.setColor(fill);
110 g.drawLine(x + 1, y, x + dx, y);
111 if (y < (s - 2)) {
112 g.drawLine(x, y + 1, x + dx + 1, y + 1);
113 }
114 g.setColor(trail);
115 g.drawLine(x + dx + 1, y, x + dx + 1, y);
116 if (y >= (s - 2)) {
117 g.drawLine(x + 1, y + 1, x + dx + 1, y + 1);
118 }
119 dx += 2;
120 x -= 1;
121 }
122 break;
123
124 case SOUTH:
125 g.setColor(trail);
126 g.drawLine(cx, s, cx, s);
127 for (int x = cx - 1, y = s - 1, dx = 1; y >= 1; y -= 2) {
128 g.setColor(lead);
129 g.drawLine(x, y, x, y);
130 if (y <= 2) {
131 g.drawLine(x, y - 1, x + dx + 1, y - 1);
132 }
133 g.setColor(fill);
134 g.drawLine(x + 1, y, x + dx, y);
135 if (y > 2) {
136 g.drawLine(x, y - 1, x + dx + 1, y - 1);
137 }
138 g.setColor(trail);
139 g.drawLine(x + dx + 1, y, x + dx + 1, y);
140
141 dx += 2;
142 x -= 1;
143 }
144 break;
145
146 case EAST:
147 g.setColor(lead);
148 g.drawLine(s, cy, s, cy);
149 for (int y = cy - 1, x = s - 1, dy = 1; x >= 1; x -= 2) {
150 g.setColor(lead);
151 g.drawLine(x, y, x, y);
152 if (x <= 2) {
153 g.drawLine(x - 1, y, x - 1, y + dy + 1);
154 }
155 g.setColor(fill);
156 g.drawLine(x, y + 1, x, y + dy);
157 if (x > 2) {
158 g.drawLine(x - 1, y, x - 1, y + dy + 1);
159 }
160 g.setColor(trail);
161 g.drawLine(x, y + dy + 1, x, y + dy + 1);
162
163 dy += 2;
164 y -= 1;
165 }
166 break;
167
168 case WEST:
169 g.setColor(trail);
170 g.drawLine(0, cy, 0, cy);
171 for (int y = cy - 1, x = 1, dy = 1; x <= s - 2; x += 2) {
172 g.setColor(lead);
173 g.drawLine(x, y, x, y);
174 if (x >= (s - 2)) {
175 g.drawLine(x + 1, y, x + 1, y);
176 }
177 g.setColor(fill);
178 g.drawLine(x, y + 1, x, y + dy);
179 if (x < (s - 2)) {
180 g.drawLine(x + 1, y, x + 1, y + dy + 1);
181 }
182 g.setColor(trail);
183 g.drawLine(x, y + dy + 1, x, y + dy + 1);
184 if (x >= (s - 2)) {
185 g.drawLine(x + 1, y + 1, x + 1, y + dy + 1);
186 }
187 dy += 2;
188 y -= 1;
189 }
190 break;
191 }
192 }
193 }
194
195
196 |
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