1 /*
2 * Copyright 1997-2001 Sun Microsystems, Inc. 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. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package javax.swing.plaf.basic;
27
28 import javax.swing;
29 import javax.swing.plaf.UIResource;
30
31 import java.awt.Graphics;
32 import java.awt.Color;
33 import java.awt.Component;
34 import java.awt.Polygon;
35 import java.io.Serializable;
36
37 /**
38 * Factory object that can vend Icons appropriate for the basic L & F.
39 * <p>
40 * <strong>Warning:</strong>
41 * Serialized objects of this class will not be compatible with
42 * future Swing releases. The current serialization support is
43 * appropriate for short term storage or RMI between applications running
44 * the same version of Swing. As of 1.4, support for long term storage
45 * of all JavaBeans<sup><font size="-2">TM</font></sup>
46 * has been added to the <code>java.beans</code> package.
47 * Please see {@link java.beans.XMLEncoder}.
48 *
49 * @author David Kloba
50 * @author Georges Saab
51 */
52 public class BasicIconFactory implements Serializable
53 {
54 private static Icon frame_icon;
55 private static Icon checkBoxIcon;
56 private static Icon radioButtonIcon;
57 private static Icon checkBoxMenuItemIcon;
58 private static Icon radioButtonMenuItemIcon;
59 private static Icon menuItemCheckIcon;
60 private static Icon menuItemArrowIcon;
61 private static Icon menuArrowIcon;
62
63 public static Icon getMenuItemCheckIcon() {
64 if (menuItemCheckIcon == null) {
65 menuItemCheckIcon = new MenuItemCheckIcon();
66 }
67 return menuItemCheckIcon;
68 }
69
70 public static Icon getMenuItemArrowIcon() {
71 if (menuItemArrowIcon == null) {
72 menuItemArrowIcon = new MenuItemArrowIcon();
73 }
74 return menuItemArrowIcon;
75 }
76
77 public static Icon getMenuArrowIcon() {
78 if (menuArrowIcon == null) {
79 menuArrowIcon = new MenuArrowIcon();
80 }
81 return menuArrowIcon;
82 }
83
84 public static Icon getCheckBoxIcon() {
85 if (checkBoxIcon == null) {
86 checkBoxIcon = new CheckBoxIcon();
87 }
88 return checkBoxIcon;
89 }
90
91 public static Icon getRadioButtonIcon() {
92 if (radioButtonIcon == null) {
93 radioButtonIcon = new RadioButtonIcon();
94 }
95 return radioButtonIcon;
96 }
97
98 public static Icon getCheckBoxMenuItemIcon() {
99 if (checkBoxMenuItemIcon == null) {
100 checkBoxMenuItemIcon = new CheckBoxMenuItemIcon();
101 }
102 return checkBoxMenuItemIcon;
103 }
104
105 public static Icon getRadioButtonMenuItemIcon() {
106 if (radioButtonMenuItemIcon == null) {
107 radioButtonMenuItemIcon = new RadioButtonMenuItemIcon();
108 }
109 return radioButtonMenuItemIcon;
110 }
111
112 public static Icon createEmptyFrameIcon() {
113 if(frame_icon == null)
114 frame_icon = new EmptyFrameIcon();
115 return frame_icon;
116 }
117
118 private static class EmptyFrameIcon implements Icon, Serializable {
119 int height = 16;
120 int width = 14;
121 public void paintIcon(Component c, Graphics g, int x, int y) {
122 }
123 public int getIconWidth() { return width; }
124 public int getIconHeight() { return height; }
125 };
126
127 private static class CheckBoxIcon implements Icon, Serializable
128 {
129 final static int csize = 13;
130 public void paintIcon(Component c, Graphics g, int x, int y) {
131 }
132
133 public int getIconWidth() {
134 return csize;
135 }
136
137 public int getIconHeight() {
138 return csize;
139 }
140 }
141
142 private static class RadioButtonIcon implements Icon, UIResource, Serializable
143 {
144 public void paintIcon(Component c, Graphics g, int x, int y) {
145 }
146
147 public int getIconWidth() {
148 return 13;
149 }
150
151 public int getIconHeight() {
152 return 13;
153 }
154 } // end class RadioButtonIcon
155
156
157 private static class CheckBoxMenuItemIcon implements Icon, UIResource, Serializable
158 {
159 public void paintIcon(Component c, Graphics g, int x, int y) {
160 AbstractButton b = (AbstractButton) c;
161 ButtonModel model = b.getModel();
162 boolean isSelected = model.isSelected();
163 if (isSelected) {
164 g.drawLine(x+7, y+1, x+7, y+3);
165 g.drawLine(x+6, y+2, x+6, y+4);
166 g.drawLine(x+5, y+3, x+5, y+5);
167 g.drawLine(x+4, y+4, x+4, y+6);
168 g.drawLine(x+3, y+5, x+3, y+7);
169 g.drawLine(x+2, y+4, x+2, y+6);
170 g.drawLine(x+1, y+3, x+1, y+5);
171 }
172 }
173 public int getIconWidth() { return 9; }
174 public int getIconHeight() { return 9; }
175
176 } // End class CheckBoxMenuItemIcon
177
178
179 private static class RadioButtonMenuItemIcon implements Icon, UIResource, Serializable
180 {
181 public void paintIcon(Component c, Graphics g, int x, int y) {
182 AbstractButton b = (AbstractButton) c;
183 ButtonModel model = b.getModel();
184 if (b.isSelected() == true) {
185 g.fillOval(x+1, y+1, getIconWidth(), getIconHeight());
186 }
187 }
188 public int getIconWidth() { return 6; }
189 public int getIconHeight() { return 6; }
190
191 } // End class RadioButtonMenuItemIcon
192
193
194 private static class MenuItemCheckIcon implements Icon, UIResource, Serializable{
195 public void paintIcon(Component c, Graphics g, int x, int y) {
196 }
197 public int getIconWidth() { return 9; }
198 public int getIconHeight() { return 9; }
199
200 } // End class MenuItemCheckIcon
201
202 private static class MenuItemArrowIcon implements Icon, UIResource, Serializable {
203 public void paintIcon(Component c, Graphics g, int x, int y) {
204 }
205 public int getIconWidth() { return 4; }
206 public int getIconHeight() { return 8; }
207
208 } // End class MenuItemArrowIcon
209
210 private static class MenuArrowIcon implements Icon, UIResource, Serializable {
211 public void paintIcon(Component c, Graphics g, int x, int y) {
212 Polygon p = new Polygon();
213 p.addPoint(x, y);
214 p.addPoint(x+getIconWidth(), y+getIconHeight()/2);
215 p.addPoint(x, y+getIconHeight());
216 g.fillPolygon(p);
217
218 }
219 public int getIconWidth() { return 4; }
220 public int getIconHeight() { return 8; }
221 } // End class MenuArrowIcon
222 }
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