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:
043: package org.jfree.util;
044:
045: import java.awt.Shape;
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 Shape} objects.
054: *
055: * @author David Gilbert
056: */
057: public class ShapeList extends AbstractObjectList {
058:
059: /**
060: * Creates a new list.
061: */
062: public ShapeList() {
063: super ();
064: }
065:
066: /**
067: * Returns a {@link Shape} object from the list.
068: *
069: * @param index the index (zero-based).
070: *
071: * @return The object.
072: */
073: public Shape getShape(final int index) {
074: return (Shape) get(index);
075: }
076:
077: /**
078: * Sets the {@link Shape} for an item in the list. The list is expanded if necessary.
079: *
080: * @param index the index (zero-based).
081: * @param shape the {@link Shape}.
082: */
083: public void setShape(final int index, final Shape shape) {
084: set(index, shape);
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 does not support cloning.
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 ShapeList) {
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)
140: 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: } 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)
166: 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: }
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