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1
7
8 package javax.swing.colorchooser;
9
10 import javax.swing.*;
11 import javax.swing.border.*;
12 import javax.swing.event.*;
13 import javax.swing.text.*;
14 import java.awt.*;
15 import java.awt.image.*;
16 import java.awt.event.*;
17 import java.beans.PropertyChangeEvent  ;
18 import java.beans.PropertyChangeListener ;
19 import java.io.Serializable ;
20 import com.sun.java.swing.SwingUtilities2;
21
22
23
39 class DefaultPreviewPanel extends JPanel {
40
41 private int squareSize = 25;
42 private int squareGap = 5;
43 private int innerGap = 5;
44
45
46 private int textGap = 5;
47 private Font font = new Font("Dialog", Font.PLAIN, 12);
48 private String sampleText = UIManager.getString("ColorChooser.sampleText");
49
50 private int swatchWidth = 50;
51
52 private Color oldColor = null;
53
54 private JColorChooser getColorChooser() {
55 return (JColorChooser)SwingUtilities.getAncestorOfClass(
56 JColorChooser.class, this);
57 }
58
59 public Dimension getPreferredSize() {
60 JComponent host = getColorChooser();
61 if (host == null) {
62 host = this;
63 }
64 FontMetrics fm = host.getFontMetrics(getFont());
65
66 int ascent = fm.getAscent();
67 int height = fm.getHeight();
68 int width = SwingUtilities2.stringWidth(host, fm, sampleText);
69
70 int y = height*3 + textGap*3;
71 int x = squareSize * 3 + squareGap*2 + swatchWidth + width + textGap*3;
72 return new Dimension( x,y );
73 }
74
75 public void paintComponent(Graphics g) {
76 if (oldColor == null)
77 oldColor = getForeground();
78
79 g.setColor(getBackground());
80 g.fillRect(0,0,getWidth(),getHeight());
81
82 if (this.getComponentOrientation().isLeftToRight()) {
83 int squareWidth = paintSquares(g, 0);
84 int textWidth = paintText(g, squareWidth);
85 paintSwatch(g, squareWidth + textWidth);
86 } else {
87 int swatchWidth = paintSwatch(g, 0);
88 int textWidth = paintText(g, swatchWidth);
89 paintSquares(g , swatchWidth + textWidth);
90
91 }
92 }
93
94 private int paintSwatch(Graphics g, int offsetX) {
95 int swatchX = offsetX;
96 g.setColor(oldColor);
97 g.fillRect(swatchX, 0, swatchWidth, (squareSize) + (squareGap/2));
98 g.setColor(getForeground());
99 g.fillRect(swatchX, (squareSize) + (squareGap/2), swatchWidth, (squareSize) + (squareGap/2) );
100 return (swatchX+swatchWidth);
101 }
102
103 private int paintText(Graphics g, int offsetX) {
104 g.setFont(getFont());
105 JComponent host = getColorChooser();
106 if (host == null) {
107 host = this;
108 }
109 FontMetrics fm = SwingUtilities2.getFontMetrics(host, g);
110
111 int ascent = fm.getAscent();
112 int height = fm.getHeight();
113 int width = SwingUtilities2.stringWidth(host, fm, sampleText);
114
115 int textXOffset = offsetX + textGap;
116
117 Color color = getForeground();
118
119 g.setColor(color);
120
121 SwingUtilities2.drawString(host, g, sampleText,textXOffset+(textGap/2),
122 ascent+2);
123
124 g.fillRect(textXOffset,
125 ( height) + textGap,
126 width + (textGap),
127 height +2);
128
129 g.setColor(Color.black);
130 SwingUtilities2.drawString(host, g, sampleText,
131 textXOffset+(textGap/2),
132 height+ascent+textGap+2);
133
134
135 g.setColor(Color.white);
136
137 g.fillRect(textXOffset,
138 ( height + textGap) * 2,
139 width + (textGap),
140 height +2);
141
142 g.setColor(color);
143 SwingUtilities2.drawString(host, g, sampleText,
144 textXOffset+(textGap/2),
145 ((height+textGap) * 2)+ascent+2);
146
147 return width + textGap*3;
148
149 }
150
151 private int paintSquares(Graphics g, int offsetX) {
152
153 int squareXOffset = offsetX;
154 Color color = getForeground();
155
156 g.setColor(Color.white);
157 g.fillRect(squareXOffset,0,squareSize,squareSize);
158 g.setColor(color);
159 g.fillRect(squareXOffset+innerGap,
160 innerGap,
161 squareSize - (innerGap*2),
162 squareSize - (innerGap*2));
163 g.setColor(Color.white);
164 g.fillRect(squareXOffset+innerGap*2,
165 innerGap*2,
166 squareSize - (innerGap*4),
167 squareSize - (innerGap*4));
168
169 g.setColor(color);
170 g.fillRect(squareXOffset,squareSize+squareGap,squareSize,squareSize);
171
172 g.translate(squareSize+squareGap, 0);
173 g.setColor(Color.black);
174 g.fillRect(squareXOffset,0,squareSize,squareSize);
175 g.setColor(color);
176 g.fillRect(squareXOffset+innerGap,
177 innerGap,
178 squareSize - (innerGap*2),
179 squareSize - (innerGap*2));
180 g.setColor(Color.white);
181 g.fillRect(squareXOffset+innerGap*2,
182 innerGap*2,
183 squareSize - (innerGap*4),
184 squareSize - (innerGap*4));
185 g.translate(-(squareSize+squareGap), 0);
186
187 g.translate(squareSize+squareGap, squareSize+squareGap);
188 g.setColor(Color.white);
189 g.fillRect(squareXOffset,0,squareSize,squareSize);
190 g.setColor(color);
191 g.fillRect(squareXOffset+innerGap,
192 innerGap,
193 squareSize - (innerGap*2),
194 squareSize - (innerGap*2));
195 g.translate(-(squareSize+squareGap), -(squareSize+squareGap));
196
197
198
199 g.translate((squareSize+squareGap)*2, 0);
200 g.setColor(Color.white);
201 g.fillRect(squareXOffset,0,squareSize,squareSize);
202 g.setColor(color);
203 g.fillRect(squareXOffset+innerGap,
204 innerGap,
205 squareSize - (innerGap*2),
206 squareSize - (innerGap*2));
207 g.setColor(Color.black);
208 g.fillRect(squareXOffset+innerGap*2,
209 innerGap*2,
210 squareSize - (innerGap*4),
211 squareSize - (innerGap*4));
212 g.translate(-((squareSize+squareGap)*2), 0);
213
214 g.translate((squareSize+squareGap)*2, (squareSize+squareGap));
215 g.setColor(Color.black);
216 g.fillRect(squareXOffset,0,squareSize,squareSize);
217 g.setColor(color);
218 g.fillRect(squareXOffset+innerGap,
219 innerGap,
220 squareSize - (innerGap*2),
221 squareSize - (innerGap*2));
222 g.translate(-((squareSize+squareGap)*2), -(squareSize+squareGap));
223
224 return (squareSize*3+squareGap*2);
225
226 }
227
228 }
229 |
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