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13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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25 
26 package com.sun.java.swing.plaf.motif;
27 
28 import javax.swing.AbstractButton;
29 import javax.swing.JComponent;
30 import javax.swing.UIManager;
31 import javax.swing.plaf.ComponentUI;
32 
33 import sun.awt.AppContext;
34 
35 /**
36  * MotifCheckBox implementation
37  *
38  * @author Rich Schiavi
39  */
40 public class MotifCheckBoxUI extends MotifRadioButtonUI {
41 
42     private static final Object MOTIF_CHECK_BOX_UI_KEY = new Object();
43 
44     private static final String propertyPrefix = "CheckBox" + ".";
45 
46     private boolean defaults_initialized = false;
47 
48 
49     // ********************************
50     //         Create PLAF
51     // ********************************
createUI(JComponent c)52     public static ComponentUI createUI(JComponent c) {
53         AppContext appContext = AppContext.getAppContext();
54         MotifCheckBoxUI motifCheckBoxUI =
55                 (MotifCheckBoxUI) appContext.get(MOTIF_CHECK_BOX_UI_KEY);
56         if (motifCheckBoxUI == null) {
57             motifCheckBoxUI = new MotifCheckBoxUI();
58             appContext.put(MOTIF_CHECK_BOX_UI_KEY, motifCheckBoxUI);
59         }
60         return motifCheckBoxUI;
61     }
62 
getPropertyPrefix()63     public String getPropertyPrefix() {
64         return propertyPrefix;
65     }
66 
67     // ********************************
68     //          Defaults
69     // ********************************
installDefaults(AbstractButton b)70     public void installDefaults(AbstractButton b) {
71         super.installDefaults(b);
72         if(!defaults_initialized) {
73             icon = UIManager.getIcon(getPropertyPrefix() + "icon");
74             defaults_initialized = true;
75         }
76     }
77 
uninstallDefaults(AbstractButton b)78     protected void uninstallDefaults(AbstractButton b) {
79         super.uninstallDefaults(b);
80         defaults_initialized = false;
81     }
82 }
83