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; 034 035import java.util.EventObject; 036 037import org.jfree.chart3d.internal.Args; 038 039/** 040 * An event indicating some change in the attributes of a chart. Typically 041 * this indicates that the chart needs to be redrawn. Any object that 042 * implements the {@link Chart3DChangeListener} interface can register 043 * with a chart to receive change event notification. 044 * <br><br> 045 * NOTE: This class is serializable, but the serialization format is subject 046 * to change in future releases and should not be relied upon for persisting 047 * instances of this class. 048 */ 049@SuppressWarnings("serial") 050public class Chart3DChangeEvent extends EventObject { 051 052 /** The chart that is the source of the event. */ 053 private Chart3D chart; 054 055 /** 056 * Creates a new event. 057 * 058 * @param chart the chart that is the source of the event ({@code null} 059 * not permitted). 060 */ 061 public Chart3DChangeEvent(Chart3D chart) { 062 this(chart, chart); 063 } 064 065 /** 066 * Creates a new event. 067 * 068 * @param source the source. 069 * @param chart the chart that is the source of the event ({@code null} 070 * not permitted). 071 */ 072 public Chart3DChangeEvent(Object source, Chart3D chart) { 073 super(source); 074 Args.nullNotPermitted(chart, "chart"); 075 this.chart = chart; 076 } 077 078 /** 079 * Returns the chart that this event is associated with. 080 * 081 * @return The chart (never {@code null}). 082 */ 083 public Chart3D getChart() { 084 return this.chart; 085 } 086}