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
043 package org.jfree.util;
044
045 import java.awt.Stroke;
046 import java.io.IOException;
047 import java.io.ObjectInputStream;
048 import java.io.ObjectOutputStream;
049
050 import org.jfree.io.SerialUtilities;
051
052 /**
053 * A table of {@link Stroke} objects.
054 *
055 * @author David Gilbert
056 */
057 public 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