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     * CategoryAnnotation.java
029     * -----------------------
030     * (C) Copyright 2003-2005, by Object Refinery Limited.
031     *
032     * Original Author:  David Gilbert (for Object Refinery Limited);
033     * Contributor(s):   -;
034     *
035     * $Id: CategoryAnnotation.java,v 1.2.2.1 2005/10/25 16:51:15 mungady Exp $
036     *
037     * Changes:
038     * --------
039     * 02-Apr-2003 : Version 1 (DG);
040     * 02-Jul-2003 : Eliminated Annotation base interface (DG);
041     *
042     */
043    
044    package org.jfree.chart.annotations;
045    
046    import java.awt.Graphics2D;
047    import java.awt.geom.Rectangle2D;
048    
049    import org.jfree.chart.axis.CategoryAxis;
050    import org.jfree.chart.axis.ValueAxis;
051    import org.jfree.chart.plot.CategoryPlot;
052    
053    /**
054     * The interface that must be supported by annotations that are to be added to 
055     * a {@link org.jfree.chart.plot.CategoryPlot}.
056     */
057    public interface CategoryAnnotation {
058    
059        /**
060         * Draws the annotation.
061         *
062         * @param g2  the graphics device.
063         * @param plot  the plot.
064         * @param dataArea  the data area.
065         * @param domainAxis  the domain axis.
066         * @param rangeAxis  the range axis.
067         */
068        public void draw(Graphics2D g2, CategoryPlot plot, Rectangle2D dataArea,
069                         CategoryAxis domainAxis, ValueAxis rangeAxis);
070    
071    }