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.renderer; 034 035import java.awt.Color; 036import org.jfree.chart3d.Chart3D; 037import org.jfree.chart3d.ChartElement; 038import org.jfree.chart3d.plot.CategoryPlot3D; 039import org.jfree.chart3d.plot.XYZPlot; 040 041/** 042 * A renderer is an object responsible for constructing objects in a 3D model 043 * that correspond to data items in a dataset. The renderer's methods will be 044 * called by the plot ({@link CategoryPlot3D} or {@link XYZPlot}) that it is 045 * assigned to. 046 * <p> 047 * All renderers support a change listener mechanism so that registered 048 * listeners can be notified whenever any attribute of the renderer is modified. 049 * Typically the plot that the renderer is assigned to will listen for 050 * change events, and pass these events along to the {@link Chart3D} object. 051 * <p> 052 * Renderers should implement the {@code java.io.Serializable} interface, 053 * so that charts can be serialized and deserialized, but this is not a forced 054 * requirement (if you never use serialization, it won't matter if you 055 * implement a renderer that does not support it). 056 */ 057public interface Renderer3D extends ChartElement { 058 059 /** 060 * A color instance that is completely transparent. 061 * 062 * @since 1.3 063 */ 064 Color TRANSPARENT_COLOR = new Color(0, 0, 0, 0); 065 066 /** 067 * Registers a listener to receive notification of changes to the 068 * renderer. 069 * 070 * @param listener the listener ({@code null} not permitted). 071 */ 072 void addChangeListener(Renderer3DChangeListener listener); 073 074 /** 075 * Deregisters a listener so that it no longer receives notification of 076 * changes to the renderer. 077 * 078 * @param listener the listener ({@code null} not permitted). 079 */ 080 void removeChangeListener(Renderer3DChangeListener listener); 081 082}