Source Code Cross Referenced for ShapeList.java in  » Graphic-Library » jcommon-components » org » jfree » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Graphic Library » jcommon components » org.jfree.util 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


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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