001    /* ===========================================================
002     * JFreeChart : a free chart 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/jfreechart/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     * AxisChangeEvent.java
029     * --------------------
030     * (C) Copyright 2000-2004, by Object Refinery Limited.
031     *
032     * Original Author:  David Gilbert (for Object Refinery Limited);
033     * Contributor(s):   -;
034     *
035     * $Id: AxisChangeListener.java,v 1.2.2.1 2005/10/25 20:42:25 mungady Exp $
036     *
037     * Changes (from 24-Aug-2001)
038     * --------------------------
039     * 24-Aug-2001 : Added standard source header. Fixed DOS encoding problem (DG);
040     * 07-Nov-2001 : Updated header (DG);
041     * 14-Oct-2002 : Now extends EventListener (DG);
042     *
043     */
044    
045    package org.jfree.chart.event;
046    
047    import java.util.EventListener;
048    
049    /**
050     * The interface that must be supported by classes that wish to receive 
051     * notification of changes to an axis.
052     * <P>
053     * The Plot class implements this interface, and automatically registers with 
054     * its axes (if any). Any axis changes are passed on by the plot as a plot 
055     * change event.  This is part of the notification mechanism that ensures that 
056     * charts are redrawn whenever changes are made to any chart component.
057     *
058     */
059    public interface AxisChangeListener extends EventListener {
060    
061        /**
062         * Receives notification of an axis change event.
063         *
064         * @param event  the event.
065         */
066        public void axisChanged(AxisChangeEvent event);
067    
068    }