001/* ===========================================================
002 * Orson Charts : a 3D chart library for the Java(tm) platform
003 * ===========================================================
004 * 
005 * (C)opyright 2013-2022, by David Gilbert.  All rights reserved.
006 * 
007 * https://github.com/jfree/orson-charts
008 * 
009 * This program is free software: you can redistribute it and/or modify
010 * it under the terms of the GNU General Public License as published by
011 * the Free Software Foundation, either version 3 of the License, or
012 * (at your option) any later version.
013 *
014 * This program is distributed in the hope that it will be useful,
015 * but WITHOUT ANY WARRANTY; without even the implied warranty of
016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
017 * GNU General Public License for more details.
018 *
019 * You should have received a copy of the GNU General Public License
020 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
021 * 
022 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
023 * Other names may be trademarks of their respective owners.]
024 * 
025 * If you do not wish to be bound by the terms of the GPL, an alternative
026 * commercial license can be purchased.  For details, please see visit the
027 * Orson Charts home page:
028 * 
029 * http://www.object-refinery.com/orsoncharts/index.html
030 * 
031 */
032
033package org.jfree.chart3d.table;
034
035import java.awt.Graphics2D;
036import java.awt.geom.Rectangle2D;
037import org.jfree.chart3d.Chart3D;
038
039/**
040 * An object that can paint a rectangular region with a color, gradient, image
041 * or anything.  
042 * <br><br>
043 * NOTE: It is recommended that classes that implement this interface are 
044 * designed to be {@code Serializable} and immutable.  Immutability is 
045 * desirable because painters are assigned to {@link Chart3D} instances, and 
046 * there is no change notification if the painter can be modified directly.
047 * In addition, a single painter can be shared amongst multiple charts.
048 */
049public interface RectanglePainter {
050    
051    /**
052     * Fills the specified rectangle (where "fill" is some arbitrary drawing
053     * operation defined by the class that implements this interface).
054     * 
055     * @param g2  the graphics target ({@code null} not permitted).
056     * @param bounds  the rectangle ({@code null} not permitted).
057     */
058    void fill(Graphics2D g2, Rectangle2D bounds);
059
060}