001/* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2013, 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 * CategoryAnnotation.java
029 * -----------------------
030 * (C) Copyright 2003-2009, by Object Refinery Limited.
031 *
032 * Original Author:  David Gilbert (for Object Refinery Limited);
033 * Contributor(s):   -;
034 *
035 * Changes:
036 * --------
037 * 02-Apr-2003 : Version 1 (DG);
038 * 02-Jul-2003 : Eliminated Annotation base interface (DG);
039 * 24-Jun-2009 : Now extends Annotation (see patch 2809117 by PK) (DG);
040 *
041 */
042
043package org.jfree.chart.annotations;
044
045import java.awt.Graphics2D;
046import java.awt.geom.Rectangle2D;
047
048import org.jfree.chart.axis.CategoryAxis;
049import org.jfree.chart.axis.ValueAxis;
050import org.jfree.chart.plot.CategoryPlot;
051
052/**
053 * The interface that must be supported by annotations that are to be added to
054 * a {@link CategoryPlot}. Note that, in JFreeChart 1.0.14, a non-compatible 
055 * change has been made to this interface (it now extends the Annotation
056 * interface to support change notifications).
057 */
058public interface CategoryAnnotation extends Annotation {
059
060    /**
061     * Draws the annotation.
062     *
063     * @param g2  the graphics device.
064     * @param plot  the plot.
065     * @param dataArea  the data area.
066     * @param domainAxis  the domain axis.
067     * @param rangeAxis  the range axis.
068     */
069    public void draw(Graphics2D g2, CategoryPlot plot, Rectangle2D dataArea,
070                     CategoryAxis domainAxis, ValueAxis rangeAxis);
071
072}