1/*
2 * Copyright (c) 1997, 1998, 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
26package com.sun.java.swing.plaf.motif;
27
28import sun.awt.AppContext;
29
30import javax.swing.*;
31
32import javax.swing.plaf.*;
33
34import java.awt.*;
35
36/**
37 * MotifCheckBox implementation
38 * <p>
39 * <strong>Warning:</strong>
40 * Serialized objects of this class will not be compatible with
41 * future Swing releases.  The current serialization support is appropriate
42 * for short term storage or RMI between applications running the same
43 * version of Swing.  A future release of Swing will provide support for
44 * long term persistence.
45 *
46 * @author Rich Schiavi
47 */
48public class MotifCheckBoxUI extends MotifRadioButtonUI {
49
50    private static final Object MOTIF_CHECK_BOX_UI_KEY = new Object();
51
52    private static final String propertyPrefix = "CheckBox" + ".";
53
54    private boolean defaults_initialized = false;
55
56
57    // ********************************
58    //         Create PLAF
59    // ********************************
60    public static ComponentUI createUI(JComponent c) {
61        AppContext appContext = AppContext.getAppContext();
62        MotifCheckBoxUI motifCheckBoxUI =
63                (MotifCheckBoxUI) appContext.get(MOTIF_CHECK_BOX_UI_KEY);
64        if (motifCheckBoxUI == null) {
65            motifCheckBoxUI = new MotifCheckBoxUI();
66            appContext.put(MOTIF_CHECK_BOX_UI_KEY, motifCheckBoxUI);
67        }
68        return motifCheckBoxUI;
69    }
70
71    public String getPropertyPrefix() {
72        return propertyPrefix;
73    }
74
75    // ********************************
76    //          Defaults
77    // ********************************
78    public void installDefaults(AbstractButton b) {
79        super.installDefaults(b);
80        if(!defaults_initialized) {
81            icon = UIManager.getIcon(getPropertyPrefix() + "icon");
82            defaults_initialized = true;
83        }
84    }
85
86    protected void uninstallDefaults(AbstractButton b) {
87        super.uninstallDefaults(b);
88        defaults_initialized = false;
89    }
90}
91