1 /*
2 * Copyright (c) 1997, 2014, 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 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™
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 @SuppressWarnings("serial") // Same-version serialization only
53 public class BasicIconFactory implements Serializable
54 {
55 private static Icon frame_icon;
56 private static Icon checkBoxIcon;
57 private static Icon radioButtonIcon;
58 private static Icon checkBoxMenuItemIcon;
59 private static Icon radioButtonMenuItemIcon;
60 private static Icon menuItemCheckIcon;
61 private static Icon menuItemArrowIcon;
62 private static Icon menuArrowIcon;
63
64 /**
65 * Returns a menu item check icon.
66 *
67 * @return a menu item check icon
68 */
69 public static Icon getMenuItemCheckIcon() {
70 if (menuItemCheckIcon == null) {
71 menuItemCheckIcon = new MenuItemCheckIcon();
72 }
73 return menuItemCheckIcon;
74 }
75
76 /**
77 * Returns a menu item arrow icon.
78 *
79 * @return a menu item arrow icon
80 */
81 public static Icon getMenuItemArrowIcon() {
82 if (menuItemArrowIcon == null) {
83 menuItemArrowIcon = new MenuItemArrowIcon();
84 }
85 return menuItemArrowIcon;
86 }
87
88 /**
89 * Returns a menu arrow icon.
90 *
91 * @return a menu arrow icon
92 */
93 public static Icon getMenuArrowIcon() {
94 if (menuArrowIcon == null) {
95 menuArrowIcon = new MenuArrowIcon();
96 }
97 return menuArrowIcon;
98 }
99
100 /**
101 * Returns a check box icon.
102 *
103 * @return a check box icon
104 */
105 public static Icon getCheckBoxIcon() {
106 if (checkBoxIcon == null) {
107 checkBoxIcon = new CheckBoxIcon();
108 }
109 return checkBoxIcon;
110 }
111
112 /**
113 * Returns a radio button icon.
114 *
115 * @return a radio button icon
116 */
117 public static Icon getRadioButtonIcon() {
118 if (radioButtonIcon == null) {
119 radioButtonIcon = new RadioButtonIcon();
120 }
121 return radioButtonIcon;
122 }
123
124 /**
125 * Returns a check box menu item icon.
126 *
127 * @return a check box menu item icon
128 */
129 public static Icon getCheckBoxMenuItemIcon() {
130 if (checkBoxMenuItemIcon == null) {
131 checkBoxMenuItemIcon = new CheckBoxMenuItemIcon();
132 }
133 return checkBoxMenuItemIcon;
134 }
135
136 /**
137 * Returns a radio button menu item icon.
138 *
139 * @return a radio button menu item icon
140 */
141 public static Icon getRadioButtonMenuItemIcon() {
142 if (radioButtonMenuItemIcon == null) {
143 radioButtonMenuItemIcon = new RadioButtonMenuItemIcon();
144 }
145 return radioButtonMenuItemIcon;
146 }
147
148 /**
149 * Returns an empty frame icon.
150 *
151 * @return an empty frame icon
152 */
153 public static Icon createEmptyFrameIcon() {
154 if(frame_icon == null)
155 frame_icon = new EmptyFrameIcon();
156 return frame_icon;
157 }
158
159 private static class EmptyFrameIcon implements Icon, Serializable {
160 int height = 16;
161 int width = 14;
162 public void paintIcon(Component c, Graphics g, int x, int y) {
163 }
164 public int getIconWidth() { return width; }
165 public int getIconHeight() { return height; }
166 };
167
168 private static class CheckBoxIcon implements Icon, Serializable
169 {
170 static final int csize = 13;
171 public void paintIcon(Component c, Graphics g, int x, int y) {
172 }
173
174 public int getIconWidth() {
175 return csize;
176 }
177
178 public int getIconHeight() {
179 return csize;
180 }
181 }
182
183 private static class RadioButtonIcon implements Icon, UIResource, Serializable
184 {
185 public void paintIcon(Component c, Graphics g, int x, int y) {
186 }
187
188 public int getIconWidth() {
189 return 13;
190 }
191
192 public int getIconHeight() {
193 return 13;
194 }
195 } // end class RadioButtonIcon
196
197
198 private static class CheckBoxMenuItemIcon implements Icon, UIResource, Serializable
199 {
200 public void paintIcon(Component c, Graphics g, int x, int y) {
201 AbstractButton b = (AbstractButton) c;
202 ButtonModel model = b.getModel();
203 boolean isSelected = model.isSelected();
204 if (isSelected) {
205 g.drawLine(x+7, y+1, x+7, y+3);
206 g.drawLine(x+6, y+2, x+6, y+4);
207 g.drawLine(x+5, y+3, x+5, y+5);
208 g.drawLine(x+4, y+4, x+4, y+6);
209 g.drawLine(x+3, y+5, x+3, y+7);
210 g.drawLine(x+2, y+4, x+2, y+6);
211 g.drawLine(x+1, y+3, x+1, y+5);
212 }
213 }
214 public int getIconWidth() { return 9; }
215 public int getIconHeight() { return 9; }
216
217 } // End class CheckBoxMenuItemIcon
218
219
220 private static class RadioButtonMenuItemIcon implements Icon, UIResource, Serializable
221 {
222 public void paintIcon(Component c, Graphics g, int x, int y) {
223 AbstractButton b = (AbstractButton) c;
224 ButtonModel model = b.getModel();
225 if (b.isSelected() == true) {
226 g.fillOval(x+1, y+1, getIconWidth(), getIconHeight());
227 }
228 }
229 public int getIconWidth() { return 6; }
230 public int getIconHeight() { return 6; }
231
232 } // End class RadioButtonMenuItemIcon
233
234
235 private static class MenuItemCheckIcon implements Icon, UIResource, Serializable{
236 public void paintIcon(Component c, Graphics g, int x, int y) {
237 }
238 public int getIconWidth() { return 9; }
239 public int getIconHeight() { return 9; }
240
241 } // End class MenuItemCheckIcon
242
243 private static class MenuItemArrowIcon implements Icon, UIResource, Serializable {
244 public void paintIcon(Component c, Graphics g, int x, int y) {
245 }
246 public int getIconWidth() { return 4; }
247 public int getIconHeight() { return 8; }
248
249 } // End class MenuItemArrowIcon
250
251 private static class MenuArrowIcon implements Icon, UIResource, Serializable {
252 public void paintIcon(Component c, Graphics g, int x, int y) {
253 Polygon p = new Polygon();
254 p.addPoint(x, y);
255 p.addPoint(x+getIconWidth(), y+getIconHeight()/2);
256 p.addPoint(x, y+getIconHeight());
257 g.fillPolygon(p);
258
259 }
260 public int getIconWidth() { return 4; }
261 public int getIconHeight() { return 8; }
262 } // End class MenuArrowIcon
263 }