1 /*

     2  * Copyright 1995-2005 Sun Microsystems, Inc.  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.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 package sun.awt.motif;

    27 

    28 

    29 import java.awt.*;

    30 import java.awt.event.*;

    31 import java.awt.peer.*;

    32 

    33 class MCheckboxMenuItemPeer extends MMenuItemPeer

    34                             implements CheckboxMenuItemPeer {

    35     private boolean inUpCall=false;

    36     private boolean inInit=false;

    37 

    38     native void pSetState(boolean t);

    39     native boolean getState();

    40 

    41     void create(MMenuPeer parent) {

    42         super.create(parent);

    43         inInit=true;

    44         setState(((CheckboxMenuItem)target).getState());

    45         inInit=false;

    46     }

    47 

    48     MCheckboxMenuItemPeer(CheckboxMenuItem target) {

    49         this.target = target;

    50         isCheckbox = true;

    51         MMenuPeer parent = (MMenuPeer) MToolkit.targetToPeer(getParent_NoClientCode(target));

    52         create(parent);

    53     }

    54 

    55     public void setState(boolean t) {

    56         if (!nativeCreated) {

    57             return;

    58         }

    59         if (!inUpCall && (t != getState())) {

    60             pSetState(t);

    61             if (!inInit) {

    62                 // 4135725 : do not notify on programatic changes

    63                 // notifyStateChanged(t);

    64             }

    65         }

    66     }

    67 

    68     void notifyStateChanged(boolean state) {

    69         CheckboxMenuItem cb = (CheckboxMenuItem)target;

    70         ItemEvent e = new ItemEvent(cb,

    71                           ItemEvent.ITEM_STATE_CHANGED,

    72                           cb.getLabel(),

    73                           state ? ItemEvent.SELECTED : ItemEvent.DESELECTED);

    74         postEvent(e);

    75     }

    76 

    77 

    78     // NOTE: This method may be called by privileged threads.

    79     //       DO NOT INVOKE CLIENT CODE ON THIS THREAD!

    80     public void action(long when, int modifiers, boolean state) {

    81         final CheckboxMenuItem cb = (CheckboxMenuItem)target;

    82         final boolean newState = state;

    83 

    84         MToolkit.executeOnEventHandlerThread(cb, new Runnable() {

    85             public void run() {

    86                 cb.setState(newState);

    87                 notifyStateChanged(newState);

    88             }

    89         });

    90         //Fix for 5005195: MAWT: CheckboxMenuItem fires action events

    91         //super.action() is not invoked

    92     } // action()

    93 } // class MCheckboxMenuItemPeer