/*

 * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

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

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

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

 * have any questions.

 */

package sun.awt.X11;

import java.awt.*;

import java.awt.peer.*;

import java.awt.event.*;

import java.lang.reflect.Field;

import sun.awt.SunToolkit;

class XCheckboxMenuItemPeer extends XMenuItemPeer implements CheckboxMenuItemPeer {

    /************************************************

     *

     * Data members

     *

     ************************************************/

    /*

     * CheckboxMenuItem's fields

     */

    private final static Field f_state;

    static {

        f_state = SunToolkit.getField(CheckboxMenuItem.class, "state");

    }

    /************************************************

     *

     * Construction

     *

     ************************************************/

    XCheckboxMenuItemPeer(CheckboxMenuItem target) {

        super(target);

    }

    /************************************************

     *

     * Implementaion of interface methods

     *

     ************************************************/

    //Prom CheckboxMenuItemtPeer

    public void setState(boolean t) {

        repaintIfShowing();

    }

    /************************************************

     *

     * Access to target's fields

     *

     ************************************************/

    boolean getTargetState() {

        MenuItem target = getTarget();

        if (target == null) {

            return false;

        }

        try {

            return f_state.getBoolean(target);

        } catch (IllegalAccessException e) {

            e.printStackTrace();

        }

        return false;

    }

    /************************************************

     *

     * Utility functions

     *

     ************************************************/

    /**

     * Toggles state and generates ItemEvent

     */

    void action(final long when) {

        XToolkit.executeOnEventHandlerThread((CheckboxMenuItem)getTarget(), new Runnable() {

                public void run() {

                    doToggleState(when);

                }

            });

    }

    /************************************************

     *

     * Private

     *

     ************************************************/

    private void doToggleState(long when) {

        CheckboxMenuItem cb = (CheckboxMenuItem)getTarget();

        boolean newState = !getTargetState();

        cb.setState(newState);

        ItemEvent e = new ItemEvent(cb,

                                    ItemEvent.ITEM_STATE_CHANGED,

                                    getTargetLabel(),

                                    getTargetState() ? ItemEvent.SELECTED : ItemEvent.DESELECTED);

        XWindow.postEventStatic(e);

        //WToolkit does not post ActionEvent when clicking on menu item

        //MToolkit _does_ post.

        //Fix for 5005195 MAWT: CheckboxMenuItem fires action events

        //Events should not be fired

        //XWindow.postEventStatic(new ActionEvent(cb, ActionEvent.ACTION_PERFORMED,

        //                                        getTargetActionCommand(), when,

        //                                        0));

    }

} // class XCheckboxMenuItemPeer