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}