1 /*
2 * Copyright (c) 1998, 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.metal;
27
28 import sun.awt.AppContext;
29
30 import javax.swing.*;
31 import javax.swing.plaf.basic.BasicCheckBoxUI;
32
33 import java.awt.*;
34 import java.awt.event.*;
35 import javax.swing.plaf.*;
36 import java.io.Serializable;
37
38
39 /**
40 * CheckboxUI implementation for MetalCheckboxUI
41 * <p>
42 * <strong>Warning:</strong>
43 * Serialized objects of this class will not be compatible with
44 * future Swing releases. The current serialization support is
45 * appropriate for short term storage or RMI between applications running
46 * the same version of Swing. As of 1.4, support for long term storage
47 * of all JavaBeans™
48 * has been added to the {@code java.beans} package.
49 * Please see {@link java.beans.XMLEncoder}.
50 *
51 * @author Michael C. Albers
52 *
53 */
54 @SuppressWarnings("serial") // Same-version serialization only
55 public class MetalCheckBoxUI extends MetalRadioButtonUI {
56
57 // NOTE: MetalCheckBoxUI inherts from MetalRadioButtonUI instead
58 // of BasicCheckBoxUI because we want to pick up all the
59 // painting changes made in MetalRadioButtonUI.
60
61 private static final Object METAL_CHECK_BOX_UI_KEY = new Object();
62
63 private static final String propertyPrefix = "CheckBox" + ".";
64
65 private boolean defaults_initialized = false;
66
67 // ********************************
68 // Create PlAF
69 // ********************************
70
71 /**
72 * Returns an instance of {@code MetalCheckBoxUI}.
73 *
74 * @param b a component
75 * @return a new instance of {@code MetalCheckBoxUI}
76 */
77 public static ComponentUI createUI(JComponent b) {
78 AppContext appContext = AppContext.getAppContext();
79 MetalCheckBoxUI checkboxUI =
80 (MetalCheckBoxUI) appContext.get(METAL_CHECK_BOX_UI_KEY);
81 if (checkboxUI == null) {
82 checkboxUI = new MetalCheckBoxUI();
83 appContext.put(METAL_CHECK_BOX_UI_KEY, checkboxUI);
84 }
85 return checkboxUI;
86 }
87
88 public String getPropertyPrefix() {
89 return propertyPrefix;
90 }
91
92 // ********************************
93 // Defaults
94 // ********************************
95 public void installDefaults(AbstractButton b) {
96 super.installDefaults(b);
97 if(!defaults_initialized) {
98 icon = UIManager.getIcon(getPropertyPrefix() + "icon");
99 defaults_initialized = true;
100 }
101 }
102
103 protected void uninstallDefaults(AbstractButton b) {
104 super.uninstallDefaults(b);
105 defaults_initialized = false;
106 }
107
108 }
--- EOF ---