1 /*
2 * Copyright (c) 1996, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.beans.editors;
27
28 import java.awt.*;
29 import java.beans.*;
30
31 public class ColorEditor extends Panel implements PropertyEditor {
32 private static final long serialVersionUID = 1781257185164716054L;
33
34 public ColorEditor() {
35 setLayout(null);
36
37 ourWidth = hPad;
38
39 // Create a sample color block bordered in black
40 Panel p = new Panel();
41 p.setLayout(null);
42 p.setBackground(Color.black);
43 sample = new Canvas();
44 p.add(sample);
45 sample.reshape(2, 2, sampleWidth, sampleHeight);
46 add(p);
47 p.reshape(ourWidth, 2, sampleWidth+4, sampleHeight+4);
48 ourWidth += sampleWidth + 4 + hPad;
49
50 text = new TextField("", 14);
51 add(text);
52 text.reshape(ourWidth,0,100,30);
53 ourWidth += 100 + hPad;
54
55 choser = new Choice();
56 int active = 0;
57 for (int i = 0; i < colorNames.length; i++) {
58 choser.addItem(colorNames[i]);
59 }
60 add(choser);
61 choser.reshape(ourWidth,0,100,30);
62 ourWidth += 100 + hPad;
63
64 resize(ourWidth,40);
65 }
66
67 public void setValue(Object o) {
68 Color c = (Color)o;
69 changeColor(c);
70 }
71
72 public Dimension preferredSize() {
73 return new Dimension(ourWidth, 40);
74 }
75
76 public boolean keyUp(Event e, int key) {
77 if (e.target == text) {
78 try {
79 setAsText(text.getText());
80 } catch (IllegalArgumentException ex) {
81 // Quietly ignore.
82 }
83 }
84 return (false);
85 }
86
87 public void setAsText(String s) throws java.lang.IllegalArgumentException {
88 if (s == null) {
89 changeColor(null);
90 return;
91 }
92 int c1 = s.indexOf(',');
93 int c2 = s.indexOf(',', c1+1);
94 if (c1 < 0 || c2 < 0) {
95 // Invalid string.
96 throw new IllegalArgumentException(s);
97 }
98 try {
99 int r = Integer.parseInt(s.substring(0,c1));
100 int g = Integer.parseInt(s.substring(c1+1, c2));
101 int b = Integer.parseInt(s.substring(c2+1));
102 Color c = new Color(r,g,b);
103 changeColor(c);
104 } catch (Exception ex) {
105 throw new IllegalArgumentException(s);
106 }
107
108 }
109
110 public boolean action(Event e, Object arg) {
111 if (e.target == choser) {
112 changeColor(colors[choser.getSelectedIndex()]);
113 }
114 return false;
115 }
116
117 public String getJavaInitializationString() {
118 return (this.color != null)
119 ? "new java.awt.Color(" + this.color.getRGB() + ",true)"
120 : "null";
121 }
122
123
124 private void changeColor(Color c) {
125
126 if (c == null) {
127 this.color = null;
128 this.text.setText("");
129 return;
130 }
131
132 color = c;
133
134 text.setText("" + c.getRed() + "," + c.getGreen() + "," + c.getBlue());
135
136 int active = 0;
137 for (int i = 0; i < colorNames.length; i++) {
138 if (color.equals(colors[i])) {
139 active = i;
140 }
141 }
142 choser.select(active);
143
144 sample.setBackground(color);
145 sample.repaint();
146
147 support.firePropertyChange("", null, null);
148 }
149
150 public Object getValue() {
151 return color;
152 }
153
154 public boolean isPaintable() {
155 return true;
156 }
157
158 public void paintValue(java.awt.Graphics gfx, java.awt.Rectangle box) {
159 Color oldColor = gfx.getColor();
160 gfx.setColor(Color.black);
161 gfx.drawRect(box.x, box.y, box.width-3, box.height-3);
162 gfx.setColor(color);
163 gfx.fillRect(box.x+1, box.y+1, box.width-4, box.height-4);
164 gfx.setColor(oldColor);
165 }
166
167 public String getAsText() {
168 return (this.color != null)
169 ? this.color.getRed() + "," + this.color.getGreen() + "," + this.color.getBlue()
170 : null;
171 }
172
173 public String[] getTags() {
174 return null;
175 }
176
177 public java.awt.Component getCustomEditor() {
178 return this;
179 }
180
181 public boolean supportsCustomEditor() {
182 return true;
183 }
184
185 public void addPropertyChangeListener(PropertyChangeListener l) {
186 support.addPropertyChangeListener(l);
187 }
188
189 public void removePropertyChangeListener(PropertyChangeListener l) {
190 support.removePropertyChangeListener(l);
191 }
192
193
194 private String colorNames[] = { " ", "white", "lightGray", "gray", "darkGray",
195 "black", "red", "pink", "orange",
196 "yellow", "green", "magenta", "cyan",
197 "blue"};
198 private Color colors[] = { null, Color.white, Color.lightGray, Color.gray, Color.darkGray,
199 Color.black, Color.red, Color.pink, Color.orange,
200 Color.yellow, Color.green, Color.magenta, Color.cyan,
201 Color.blue};
202
203 private Canvas sample;
204 private int sampleHeight = 20;
205 private int sampleWidth = 40;
206 private int hPad = 5;
207 private int ourWidth;
208
209 private Color color;
210 private TextField text;
211 private Choice choser;
212
213 private PropertyChangeSupport support = new PropertyChangeSupport(this);
214 }