001    /* ========================================================================
002     * JCommon : a free general purpose class library for the Java(tm) platform
003     * ========================================================================
004     *
005     * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006     * 
007     * Project Info:  http://www.jfree.org/jcommon/index.html
008     *
009     * This library is free software; you can redistribute it and/or modify it 
010     * under the terms of the GNU Lesser General Public License as published by 
011     * the Free Software Foundation; either version 2.1 of the License, or 
012     * (at your option) any later version.
013     *
014     * This library is distributed in the hope that it will be useful, but 
015     * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
016     * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
017     * License for more details.
018     *
019     * You should have received a copy of the GNU Lesser General Public
020     * License along with this library; if not, write to the Free Software
021     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
022     * USA.  
023     *
024     * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
025     * in the United States and other countries.]
026     * 
027     * ----------------------------
028     * AbstractActionDowngrade.java
029     * ----------------------------
030     * (C)opyright 2002-2004, by Thomas Morgner and Contributors.
031     *
032     * Original Author:  Thomas Morgner;
033     * Contributor(s):   David Gilbert (for Object Refinery Limited);
034     *
035     * $Id: AbstractActionDowngrade.java,v 1.2 2005/10/18 13:22:13 mungady Exp $
036     *
037     * Changes
038     * -------
039     * 30-Aug-2002 : Initial version
040     * 10-Dec-2002 : Updated Javadocs (DG);
041     * 07-Jun-2004 : Corrected source headers (DG);
042     *
043     */
044    
045    package org.jfree.ui.action;
046    
047    import javax.swing.AbstractAction;
048    
049    /**
050     * A class that allows Action features introduced in JDK 1.3 to be used with JDK 1.2.2, by
051     * defining the two new constants introduced by Sun in JDK 1.3.
052     *
053     * @author Thomas Morgner
054     */
055    public abstract class AbstractActionDowngrade extends AbstractAction implements ActionDowngrade {
056        // kills a compile error for JDK's >= 1.3
057        // ambiguous reference error ...
058        /**
059         * The key used for storing a <code>KeyStroke</code> to be used as the
060         * accelerator for the action.
061         */
062        public static final String ACCELERATOR_KEY = ActionDowngrade.ACCELERATOR_KEY;
063    
064        /**
065         * The key used for storing an int key code to be used as the mnemonic
066         * for the action.
067         */
068        public static final String MNEMONIC_KEY = ActionDowngrade.MNEMONIC_KEY;
069    
070        /**
071         * Creates a new action with a default (transparent) icon.
072         */
073        protected AbstractActionDowngrade() {
074            // nothing required
075        }
076        
077    }