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: * PaintList.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: PaintList.java,v 1.5 2005/10/18 13:24:19 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 13-Aug-2003 : Version 1 (DG);
040: * 27-Jun-2005 : Fixed equals() method to handle GradientPaint (DG);
041: *
042: */
043:
044: package org.jfree.util;
045:
046: import java.awt.Paint;
047: import java.io.IOException;
048: import java.io.ObjectInputStream;
049: import java.io.ObjectOutputStream;
050:
051: import org.jfree.io.SerialUtilities;
052:
053: /**
054: * A table of {@link Paint} objects.
055: *
056: * @author David Gilbert
057: */
058: public class PaintList extends AbstractObjectList {
059:
060: /**
061: * Creates a new list.
062: */
063: public PaintList() {
064: super ();
065: }
066:
067: /**
068: * Returns a {@link Paint} object from the list.
069: *
070: * @param index the index (zero-based).
071: *
072: * @return The object.
073: */
074: public Paint getPaint(final int index) {
075: return (Paint) get(index);
076: }
077:
078: /**
079: * Sets the {@link Paint} for an item in the list. The list is expanded if necessary.
080: *
081: * @param index the index (zero-based).
082: * @param paint the {@link Paint}.
083: */
084: public void setPaint(final int index, final Paint paint) {
085: set(index, paint);
086: }
087:
088: /**
089: * Tests the list for equality with another object (typically also a list).
090: *
091: * @param obj the other object (<code>null</code> permitted).
092: *
093: * @return A boolean.
094: */
095: public boolean equals(final Object obj) {
096: if (obj == null) {
097: return false;
098: }
099: if (obj == this ) {
100: return true;
101: }
102: if (obj instanceof PaintList) {
103: PaintList that = (PaintList) obj;
104: int listSize = size();
105: for (int i = 0; i < listSize; i++) {
106: if (!PaintUtilities
107: .equal(getPaint(i), that.getPaint(i))) {
108: return false;
109: }
110: }
111: }
112: return true;
113: }
114:
115: /**
116: * Returns a hash code value for the object.
117: *
118: * @return the hashcode
119: */
120: public int hashCode() {
121: return super .hashCode();
122: }
123:
124: /**
125: * Provides serialization support.
126: *
127: * @param stream the output stream.
128: *
129: * @throws IOException if there is an I/O error.
130: */
131: private void writeObject(final ObjectOutputStream stream)
132: throws IOException {
133:
134: stream.defaultWriteObject();
135: final int count = size();
136: stream.writeInt(count);
137: for (int i = 0; i < count; i++) {
138: final Paint paint = getPaint(i);
139: if (paint != null) {
140: stream.writeInt(i);
141: SerialUtilities.writePaint(paint, stream);
142: } else {
143: stream.writeInt(-1);
144: }
145: }
146:
147: }
148:
149: /**
150: * Provides serialization support.
151: *
152: * @param stream the input stream.
153: *
154: * @throws IOException if there is an I/O error.
155: * @throws ClassNotFoundException if there is a classpath problem.
156: */
157: private void readObject(final ObjectInputStream stream)
158: throws IOException, ClassNotFoundException {
159:
160: stream.defaultReadObject();
161: final int count = stream.readInt();
162: for (int i = 0; i < count; i++) {
163: final int index = stream.readInt();
164: if (index != -1) {
165: setPaint(index, SerialUtilities.readPaint(stream));
166: }
167: }
168:
169: }
170:
171: }
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