    001    /* ===========================================================
    002     * JFreeChart : a free chart library for the Java(tm) platform
    003     * ===========================================================
    004     *
    005     * (C) Copyright 2000-2011, 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     * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
    025     * Other names may be trademarks of their respective owners.]
    026     *
    027     * ------------------------
    028     * ChartChangeListener.java
    029     * ------------------------
    030     * (C) Copyright 2000-2008, by Object Refinery Limited.
    031     *
    032     * Original Author:  David Gilbert (for Object Refinery Limited);
    033     * Contributor(s):   -;
    034     *
    035     * Changes (from 24-Aug-2001)
    036     * --------------------------
    037     * 24-Aug-2001 : Added standard source header. Fixed DOS encoding problem (DG);
    038     * 07-Nov-2001 : Updated header (DG);
    039     * 09-Oct-2002 : Fixed errors reported by Checkstyle (DG);
    040     * 14-Oct-2002 : Now extends java.util.EventListener (DG);
    041     *
    042     */
    043
    044    package org.jfree.chart.event;
    045
    046    import java.util.EventListener;
    047
    048    /**
    049     * The interface that must be supported by classes that wish to receive
    050     * notification of chart events.
    051     * <P>
    052     * The {@link org.jfree.chart.ChartPanel} class registers itself with the
    053     * chart it displays, and whenever the chart changes, the panel redraws itself.
    054     *
    055     */
    056    public interface ChartChangeListener extends EventListener {
    057
    058        /**
    059         * Receives notification of a chart change event.
    060         *
    061         * @param event  the event.
    062         */
    063        public void chartChanged(ChartChangeEvent event);
    064
    065    }