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 * StrokeList.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: StrokeList.java,v 1.5 2005/10/18 13:24:19 mungady Exp $ 036 * 037 * Changes 038 * ------- 039 * 19-Aug-2003 : Version 1 (DG); 040 * 041 */ 042 043package org.jfree.util; 044 045import java.awt.Stroke; 046import java.io.IOException; 047import java.io.ObjectInputStream; 048import java.io.ObjectOutputStream; 049 050import org.jfree.io.SerialUtilities; 051 052/** 053 * A table of {@link Stroke} objects. 054 * 055 * @author David Gilbert 056 */ 057public class StrokeList extends AbstractObjectList { 058 059 /** 060 * Creates a new list. 061 */ 062 public StrokeList() { 063 super(); 064 } 065 066 /** 067 * Returns a {@link Stroke} object from the list. 068 * 069 * @param index the index (zero-based). 070 * 071 * @return The object. 072 */ 073 public Stroke getStroke(final int index) { 074 return (Stroke) get(index); 075 } 076 077 /** 078 * Sets the {@link Stroke} for an item in the list. The list is expanded if necessary. 079 * 080 * @param index the index (zero-based). 081 * @param stroke the {@link Stroke}. 082 */ 083 public void setStroke(final int index, final Stroke stroke) { 084 set(index, stroke); 085 } 086 087 /** 088 * Returns an independent copy of the list. 089 * 090 * @return A clone. 091 * 092 * @throws CloneNotSupportedException if an item in the list cannot be cloned. 093 */ 094 public Object clone() throws CloneNotSupportedException { 095 return super.clone(); 096 } 097 098 /** 099 * Tests the list for equality with another object (typically also a list). 100 * 101 * @param o the other object. 102 * 103 * @return A boolean. 104 */ 105 public boolean equals(final Object o) { 106 107 if (o == null) { 108 return false; 109 } 110 111 if (o == this) { 112 return true; 113 } 114 115 if (o instanceof StrokeList) { 116 return super.equals(o); 117 } 118 119 return false; 120 121 } 122 123 /** 124 * Returns a hash code value for the object. 125 * 126 * @return the hashcode 127 */ 128 public int hashCode() { 129 return super.hashCode(); 130 } 131 132 /** 133 * Provides serialization support. 134 * 135 * @param stream the output stream. 136 * 137 * @throws IOException if there is an I/O error. 138 */ 139 private void writeObject(final ObjectOutputStream stream) throws IOException { 140 141 stream.defaultWriteObject(); 142 final int count = size(); 143 stream.writeInt(count); 144 for (int i = 0; i < count; i++) { 145 final Stroke stroke = getStroke(i); 146 if (stroke != null) { 147 stream.writeInt(i); 148 SerialUtilities.writeStroke(stroke, stream); 149 } 150 else { 151 stream.writeInt(-1); 152 } 153 } 154 155 } 156 157 /** 158 * Provides serialization support. 159 * 160 * @param stream the input stream. 161 * 162 * @throws IOException if there is an I/O error. 163 * @throws ClassNotFoundException if there is a classpath problem. 164 */ 165 private void readObject(final ObjectInputStream stream) throws IOException, ClassNotFoundException { 166 167 stream.defaultReadObject(); 168 final int count = stream.readInt(); 169 for (int i = 0; i < count; i++) { 170 final int index = stream.readInt(); 171 if (index != -1) { 172 setStroke(index, SerialUtilities.readStroke(stream)); 173 } 174 } 175 176 } 177 178} 179