001/* =========================================================== 002 * JFreeChart : a free chart library for the Java(tm) platform 003 * =========================================================== 004 * 005 * (C) Copyright 2000-present, by David Gilbert 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 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 025 * Other names may be trademarks of their respective owners.] 026 * 027 * -------------- 028 * ShapeList.java 029 * -------------- 030 * (C) Copyright 2000-present, by David Gilbert and Contributors. 031 * 032 * Original Author: David Gilbert; 033 * Contributors: -; 034 */ 035 036package org.jfree.chart.util; 037 038import java.awt.Shape; 039import java.io.IOException; 040import java.io.ObjectInputStream; 041import java.io.ObjectOutputStream; 042 043/** 044 * A table of {@link Shape} objects. 045 */ 046public class ShapeList extends AbstractObjectList { 047 048 /** 049 * Creates a new list. 050 */ 051 public ShapeList() { 052 super(); 053 } 054 055 /** 056 * Returns a {@link Shape} object from the list. 057 * 058 * @param index the index (zero-based). 059 * 060 * @return The object. 061 */ 062 public Shape getShape(int index) { 063 return (Shape) get(index); 064 } 065 066 /** 067 * Sets the {@link Shape} for an item in the list. The list is expanded 068 * if necessary. 069 * 070 * @param index the index (zero-based). 071 * @param shape the {@link Shape}. 072 */ 073 public void setShape(int index, Shape shape) { 074 set(index, shape); 075 } 076 077 /** 078 * Returns an independent copy of the list. 079 * 080 * @return A clone. 081 * 082 * @throws CloneNotSupportedException if an item in the list does not 083 * support cloning. 084 */ 085 @Override 086 public Object clone() throws CloneNotSupportedException { 087 return super.clone(); 088 } 089 090 /** 091 * Tests the list for equality with another object (typically also a list). 092 * 093 * @param obj the other object ({@code null} permitted). 094 * 095 * @return A boolean. 096 */ 097 @Override 098 public boolean equals(Object obj) { 099 100 if (obj == this) { 101 return true; 102 } 103 if (!(obj instanceof ShapeList)) { 104 return false; 105 } 106 ShapeList that = (ShapeList) obj; 107 int listSize = size(); 108 for (int i = 0; i < listSize; i++) { 109 if (!ShapeUtils.equal((Shape) get(i), (Shape) that.get(i))) { 110 return false; 111 } 112 } 113 return true; 114 115 } 116 117 /** 118 * Returns a hash code value for the object. 119 * 120 * @return the hashcode 121 */ 122 @Override 123 public int hashCode() { 124 return super.hashCode(); 125 } 126 127 /** 128 * Provides serialization support. 129 * 130 * @param stream the output stream. 131 * 132 * @throws IOException if there is an I/O error. 133 */ 134 private void writeObject(ObjectOutputStream stream) throws IOException { 135 136 stream.defaultWriteObject(); 137 final int count = size(); 138 stream.writeInt(count); 139 for (int i = 0; i < count; i++) { 140 final Shape shape = getShape(i); 141 if (shape != null) { 142 stream.writeInt(i); 143 SerialUtils.writeShape(shape, stream); 144 } 145 else { 146 stream.writeInt(-1); 147 } 148 } 149 150 } 151 152 /** 153 * Provides serialization support. 154 * 155 * @param stream the input stream. 156 * 157 * @throws IOException if there is an I/O error. 158 * @throws ClassNotFoundException if there is a classpath problem. 159 */ 160 private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException { 161 162 stream.defaultReadObject(); 163 final int count = stream.readInt(); 164 for (int i = 0; i < count; i++) { 165 final int index = stream.readInt(); 166 if (index != -1) { 167 setShape(index, SerialUtils.readShape(stream)); 168 } 169 } 170 171 } 172 173} 174 175