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File org.jfree.util.PaintList.java

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/* ========================================================================
 * JCommon : a free general purpose class library for the Java(tm) platform
 * ========================================================================
 *
 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
 * 
 * Project Info:  http://www.jfree.org/jcommon/index.html
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
 * USA.  
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 * 
 * --------------
 * PaintList.java
 * --------------
 * (C) Copyright 2003, 2004, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: PaintList.java,v 1.5 2005/10/18 13:24:19 mungady Exp $
 *
 * Changes
 * -------
 * 13-Aug-2003 : Version 1 (DG);
 * 27-Jun-2005 : Fixed equals() method to handle GradientPaint (DG);
 * 
 */


package org.jfree.util;

import java.awt.Paint;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import org.jfree.io.SerialUtilities;

/**
 * A table of {@link Paint} objects.
 *
 * @author David Gilbert
 */

public class PaintList extends AbstractObjectList {

    /**
     * Creates a new list.
     */

    public PaintList() {
        super();
    }

    /**
     * Returns a {@link Paint} object from the list.
     *
     * @param index the index (zero-based).
     *
     * @return The object.
     */

    public Paint getPaint(final int index) {
        return (Paint) get(index);
    }

    /**
     * Sets the {@link Paint} for an item in the list.  The list is expanded if necessary.
     *
     * @param index  the index (zero-based).
     * @param paint  the {@link Paint}.
     */

    public void setPaint(final int index, final Paint paint) {
        set(index, paint);
    }

    /**
     * Tests the list for equality with another object (typically also a list).
     *
     * @param obj  the other object (<code>null</code> permitted).
     *
     * @return A boolean.
     */

    public boolean equals(final Object obj) {
        if (obj == null) {
            return false;
        }
        if (obj == this) {
            return true;
        }
        if (obj instanceof PaintList) {
            PaintList that = (PaintList) obj;
            int listSize = size();
            for (int i = 0; i < listSize; i++) {
               if (!PaintUtilities.equal(getPaint(i), that.getPaint(i))) {
                   return false;
               }
            }
        }
        return true;
    }

    /**
     * Returns a hash code value for the object.
     *
     * @return the hashcode
     */

    public int hashCode() {
        return super.hashCode();
    }

    /**
     * Provides serialization support.
     *
     * @param stream  the output stream.
     *
     * @throws IOException  if there is an I/O error.
     */

    private void writeObject(final ObjectOutputStream stream) throws IOException {

        stream.defaultWriteObject();
        final int count = size();
        stream.writeInt(count);
        for (int i = 0; i < count; i++) {
            final Paint paint = getPaint(i);
            if (paint != null) {
                stream.writeInt(i);
                SerialUtilities.writePaint(paint, stream);
            }
            else {
                stream.writeInt(-1);
            }
        }

    }
    
    /**
     * Provides serialization support.
     *
     * @param stream  the input stream.
     *
     * @throws IOException  if there is an I/O error.
     * @throws ClassNotFoundException  if there is a classpath problem.
     */

    private void readObject(final ObjectInputStream stream) throws IOException, ClassNotFoundException {

        stream.defaultReadObject();
        final int count = stream.readInt();
        for (int i = 0; i < count; i++) {
            final int index = stream.readInt();
            if (index != -1) {
                setPaint(index, SerialUtilities.readPaint(stream));
            }
        }
        
    }

}

File Information:

file name:PaintList.java
package:org.jfree.util
qualified name:org.jfree.util.PaintList.java
file type:Java Source File
download location:download http://dgpf.sourceforge.net/source/org/jfree/util/PaintList.java
size:4.862 KB (4979 B)
uploaded: 2018-01-07 12:03:36 GMT+0000
last update: 2006-09-26 10:30:36 GMT+0000
last access: 2018-04-26 03:59:22 GMT+0000

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