source: branches/1.1.x/examples/gui/awt/ItemListener.java

/*
 * ItemListener.java
 *
 * Copyright (C) 2003-2005 Peter Graves
 * $Id: ItemListener.java 12731 2010-05-25 12:42:15Z mevenson $
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package awt;

import java.awt.Checkbox;
import java.awt.CheckboxMenuItem;
import java.awt.Choice;
import java.awt.ItemSelectable;
import java.awt.List;
import java.awt.event.ItemEvent;
import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.DefaultButtonModel;
import javax.swing.JComboBox;
import org.armedbear.lisp.JHandler;

public class ItemListener implements java.awt.event.ItemListener
{
    public void itemStateChanged(ItemEvent itemevent)
    {
        String as[] = { itemevent.paramString(), itemevent.getItem().toString() };
        int ai[] = { itemevent.getStateChange() != ItemEvent.SELECTED ? 0 : 1 };
        JHandler.callLisp("ITEMSTATECHANGED", handle, as, ai);
    }

    public static synchronized void addTo(Checkbox checkbox)
    {
        ItemListener itemlistener = new ItemListener();
        itemlistener.handle = checkbox;
        checkbox.addItemListener(itemlistener);
    }

    public static synchronized void addTo(CheckboxMenuItem checkboxmenuitem)
    {
        ItemListener itemlistener = new ItemListener();
        itemlistener.handle = checkboxmenuitem;
        checkboxmenuitem.addItemListener(itemlistener);
    }

    public static synchronized void addTo(Choice choice)
    {
        ItemListener itemlistener = new ItemListener();
        itemlistener.handle = choice;
        choice.addItemListener(itemlistener);
    }

    public static synchronized void addTo(ItemSelectable itemselectable)
    {
        ItemListener itemlistener = new ItemListener();
        itemlistener.handle = itemselectable;
        itemselectable.addItemListener(itemlistener);
    }

    public static synchronized void addTo(List list)
    {
        ItemListener itemlistener = new ItemListener();
        itemlistener.handle = list;
        list.addItemListener(itemlistener);
    }

    //Swing

    public static synchronized void addTo(AbstractButton abstractbutton)
    {
        ItemListener itemlistener = new ItemListener();
        itemlistener.handle = abstractbutton;
        abstractbutton.addItemListener(itemlistener);
    }

    public static synchronized void addTo(ButtonModel buttonmodel)
    {
        ItemListener itemlistener = new ItemListener();
        itemlistener.handle = buttonmodel;
        buttonmodel.addItemListener(itemlistener);
    }

    public static synchronized void addTo(DefaultButtonModel defaultbuttonmodel)
    {
        ItemListener itemlistener = new ItemListener();
        itemlistener.handle = defaultbuttonmodel;
        defaultbuttonmodel.addItemListener(itemlistener);
    }

    public static synchronized void addTo(JComboBox jcombobox)
    {
        ItemListener itemlistener = new ItemListener();
        itemlistener.handle = jcombobox;
        jcombobox.addItemListener(itemlistener);
    }

    private Object handle;
}