001/* ======================================================================== 002 * JCommon : a free general purpose class library for the Java(tm) platform 003 * ======================================================================== 004 * 005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 006 * 007 * Project Info: http://www.jfree.org/jcommon/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 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 025 * in the United States and other countries.] 026 * 027 * -------------- 028 * ShapeList.java 029 * -------------- 030 * (C) Copyright 2003, 2004, by Object Refinery Limited. 031 * 032 * Original Author: David Gilbert (for Object Refinery Limited); 033 * Contributor(s): -; 034 * 035 * $Id: ShapeList.java,v 1.4 2005/10/18 13:24:19 mungady Exp $ 036 * 037 * Changes 038 * ------- 039 * 13-Aug-2003 : Version 1 (DG); 040 * 041 */ 042 043package org.jfree.util; 044 045import java.awt.Shape; 046import java.io.IOException; 047import java.io.ObjectInputStream; 048import java.io.ObjectOutputStream; 049 050import org.jfree.io.SerialUtilities; 051 052 053/** 054 * A table of {@link Shape} objects. 055 * 056 * @author David Gilbert 057 */ 058public class ShapeList extends AbstractObjectList { 059 060 /** 061 * Creates a new list. 062 */ 063 public ShapeList() { 064 super(); 065 } 066 067 /** 068 * Returns a {@link Shape} object from the list. 069 * 070 * @param index the index (zero-based). 071 * 072 * @return The object. 073 */ 074 public Shape getShape(final int index) { 075 return (Shape) get(index); 076 } 077 078 /** 079 * Sets the {@link Shape} for an item in the list. The list is expanded if necessary. 080 * 081 * @param index the index (zero-based). 082 * @param shape the {@link Shape}. 083 */ 084 public void setShape(final int index, final Shape shape) { 085 set(index, shape); 086 } 087 088 /** 089 * Returns an independent copy of the list. 090 * 091 * @return A clone. 092 * 093 * @throws CloneNotSupportedException if an item in the list does not support cloning. 094 */ 095 public Object clone() throws CloneNotSupportedException { 096 return super.clone(); 097 } 098 099 /** 100 * Tests the list for equality with another object (typically also a list). 101 * 102 * @param o the other object. 103 * 104 * @return A boolean. 105 */ 106 public boolean equals(final Object o) { 107 108 if (o == null) { 109 return false; 110 } 111 112 if (o == this) { 113 return true; 114 } 115 116 if (o instanceof ShapeList) { 117 return super.equals(o); 118 } 119 120 return false; 121 122 } 123 124 /** 125 * Returns a hash code value for the object. 126 * 127 * @return the hashcode 128 */ 129 public int hashCode() { 130 return super.hashCode(); 131 } 132 133 /** 134 * Provides serialization support. 135 * 136 * @param stream the output stream. 137 * 138 * @throws IOException if there is an I/O error. 139 */ 140 private void writeObject(final ObjectOutputStream stream) throws IOException { 141 142 stream.defaultWriteObject(); 143 final int count = size(); 144 stream.writeInt(count); 145 for (int i = 0; i < count; i++) { 146 final Shape shape = getShape(i); 147 if (shape != null) { 148 stream.writeInt(i); 149 SerialUtilities.writeShape(shape, stream); 150 } 151 else { 152 stream.writeInt(-1); 153 } 154 } 155 156 } 157 158 /** 159 * Provides serialization support. 160 * 161 * @param stream the input stream. 162 * 163 * @throws IOException if there is an I/O error. 164 * @throws ClassNotFoundException if there is a classpath problem. 165 */ 166 private void readObject(final ObjectInputStream stream) throws IOException, ClassNotFoundException { 167 168 stream.defaultReadObject(); 169 final int count = stream.readInt(); 170 for (int i = 0; i < count; i++) { 171 final int index = stream.readInt(); 172 if (index != -1) { 173 setShape(index, SerialUtilities.readShape(stream)); 174 } 175 } 176 177 } 178 179} 180