Frames | No Frames |
1: /* ======================================================================== 2: * JCommon : a free general purpose class library for the Java(tm) platform 3: * ======================================================================== 4: * 5: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jcommon/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * -------------- 28: * ShapeList.java 29: * -------------- 30: * (C) Copyright 2003, 2004, by Object Refinery Limited. 31: * 32: * Original Author: David Gilbert (for Object Refinery Limited); 33: * Contributor(s): -; 34: * 35: * $Id: ShapeList.java,v 1.4 2005/10/18 13:24:19 mungady Exp $ 36: * 37: * Changes 38: * ------- 39: * 13-Aug-2003 : Version 1 (DG); 40: * 41: */ 42: 43: package org.jfree.util; 44: 45: import java.awt.Shape; 46: import java.io.IOException; 47: import java.io.ObjectInputStream; 48: import java.io.ObjectOutputStream; 49: 50: import org.jfree.io.SerialUtilities; 51: 52: 53: /** 54: * A table of {@link Shape} objects. 55: * 56: * @author David Gilbert 57: */ 58: public class ShapeList extends AbstractObjectList { 59: 60: /** 61: * Creates a new list. 62: */ 63: public ShapeList() { 64: super(); 65: } 66: 67: /** 68: * Returns a {@link Shape} object from the list. 69: * 70: * @param index the index (zero-based). 71: * 72: * @return The object. 73: */ 74: public Shape getShape(final int index) { 75: return (Shape) get(index); 76: } 77: 78: /** 79: * Sets the {@link Shape} for an item in the list. The list is expanded if necessary. 80: * 81: * @param index the index (zero-based). 82: * @param shape the {@link Shape}. 83: */ 84: public void setShape(final int index, final Shape shape) { 85: set(index, shape); 86: } 87: 88: /** 89: * Returns an independent copy of the list. 90: * 91: * @return A clone. 92: * 93: * @throws CloneNotSupportedException if an item in the list does not support cloning. 94: */ 95: public Object clone() throws CloneNotSupportedException { 96: return super.clone(); 97: } 98: 99: /** 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: }