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 public static Icon getMenuItemCheckIcon() {
65 if (menuItemCheckIcon == null) {
66 menuItemCheckIcon = new MenuItemCheckIcon();
67 }
68 return menuItemCheckIcon;
69 }
70
71 public static Icon getMenuItemArrowIcon() {
72 if (menuItemArrowIcon == null) {
73 menuItemArrowIcon = new MenuItemArrowIcon();
74 }
75 return menuItemArrowIcon;
76 }
77
78 public static Icon getMenuArrowIcon() {
79 if (menuArrowIcon == null) {
80 menuArrowIcon = new MenuArrowIcon();
81 }
82 return menuArrowIcon;
83 }
84
85 public static Icon getCheckBoxIcon() {
86 if (checkBoxIcon == null) {
87 checkBoxIcon = new CheckBoxIcon();
88 }
89 return checkBoxIcon;
90 }
91
92 public static Icon getRadioButtonIcon() {
93 if (radioButtonIcon == null) {
94 radioButtonIcon = new RadioButtonIcon();
95 }
96 return radioButtonIcon;
97 }
98
99 public static Icon getCheckBoxMenuItemIcon() {
100 if (checkBoxMenuItemIcon == null) {
101 checkBoxMenuItemIcon = new CheckBoxMenuItemIcon();
102 }
103 return checkBoxMenuItemIcon;
104 }
105
106 public static Icon getRadioButtonMenuItemIcon() {
107 if (radioButtonMenuItemIcon == null) {
108 radioButtonMenuItemIcon = new RadioButtonMenuItemIcon();
109 }
110 return radioButtonMenuItemIcon;
111 }
112
113 public static Icon createEmptyFrameIcon() {
114 if(frame_icon == null)
115 frame_icon = new EmptyFrameIcon();
116 return frame_icon;
117 }
118
119 private static class EmptyFrameIcon implements Icon, Serializable {
120 int height = 16;
121 int width = 14;
122 public void paintIcon(Component c, Graphics g, int x, int y) {
123 }
124 public int getIconWidth() { return width; }
125 public int getIconHeight() { return height; }
126 };
127
128 private static class CheckBoxIcon implements Icon, Serializable
129 {
130 final static int csize = 13;
131 public void paintIcon(Component c, Graphics g, int x, int y) {
132 }
133
134 public int getIconWidth() {
135 return csize;
136 }
137
138 public int getIconHeight() {
139 return csize;
140 }
141 }
142
143 private static class RadioButtonIcon implements Icon, UIResource, Serializable
144 {
145 public void paintIcon(Component c, Graphics g, int x, int y) {
146 }
147
148 public int getIconWidth() {
149 return 13;
150 }
151
152 public int getIconHeight() {
153 return 13;
154 }
155 } // end class RadioButtonIcon
156
157
158 private static class CheckBoxMenuItemIcon implements Icon, UIResource, Serializable
159 {
160 public void paintIcon(Component c, Graphics g, int x, int y) {
161 AbstractButton b = (AbstractButton) c;
162 ButtonModel model = b.getModel();
163 boolean isSelected = model.isSelected();
164 if (isSelected) {
165 g.drawLine(x+7, y+1, x+7, y+3);
166 g.drawLine(x+6, y+2, x+6, y+4);
167 g.drawLine(x+5, y+3, x+5, y+5);
168 g.drawLine(x+4, y+4, x+4, y+6);
169 g.drawLine(x+3, y+5, x+3, y+7);
170 g.drawLine(x+2, y+4, x+2, y+6);
171 g.drawLine(x+1, y+3, x+1, y+5);
172 }
173 }
174 public int getIconWidth() { return 9; }
175 public int getIconHeight() { return 9; }
176
177 } // End class CheckBoxMenuItemIcon
178
179
180 private static class RadioButtonMenuItemIcon implements Icon, UIResource, Serializable
181 {
182 public void paintIcon(Component c, Graphics g, int x, int y) {
183 AbstractButton b = (AbstractButton) c;
184 ButtonModel model = b.getModel();
185 if (b.isSelected() == true) {
186 g.fillOval(x+1, y+1, getIconWidth(), getIconHeight());
187 }
188 }
189 public int getIconWidth() { return 6; }
190 public int getIconHeight() { return 6; }
191
192 } // End class RadioButtonMenuItemIcon
193
194
195 private static class MenuItemCheckIcon implements Icon, UIResource, Serializable{
196 public void paintIcon(Component c, Graphics g, int x, int y) {
197 }
198 public int getIconWidth() { return 9; }
199 public int getIconHeight() { return 9; }
200
201 } // End class MenuItemCheckIcon
202
203 private static class MenuItemArrowIcon implements Icon, UIResource, Serializable {
204 public void paintIcon(Component c, Graphics g, int x, int y) {
205 }
206 public int getIconWidth() { return 4; }
207 public int getIconHeight() { return 8; }
208
209 } // End class MenuItemArrowIcon
210
211 private static class MenuArrowIcon implements Icon, UIResource, Serializable {
212 public void paintIcon(Component c, Graphics g, int x, int y) {
213 Polygon p = new Polygon();
214 p.addPoint(x, y);
215 p.addPoint(x+getIconWidth(), y+getIconHeight()/2);
216 p.addPoint(x, y+getIconHeight());
217 g.fillPolygon(p);
218
219 }
220 public int getIconWidth() { return 4; }
221 public int getIconHeight() { return 8; }
222 } // End class MenuArrowIcon
223 }