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 * GradientPaintWriteHandler.java
029 * ------------------------------
030 * (C)opyright 2003-2005, by Thomas Morgner and Contributors.
031 *
032 * Original Author:  Thomas Morgner;
033 * Contributor(s):   David Gilbert (for Object Refinery Limited);
034 *
035 * $Id: GradientPaintWriteHandler.java,v 1.4 2005/10/18 13:35:21 mungady Exp $
036 *
037 * Changes
038 * -------
039 * 12-Nov-2003 : Initial version (TM);
040 * 23-Dec-2003 : Updated header (DG);
041 * 
042 */
043
044package org.jfree.xml.writer.coretypes;
045
046import java.awt.Color;
047import java.awt.GradientPaint;
048import java.awt.geom.Point2D;
049import java.io.IOException;
050
051import org.jfree.xml.writer.AbstractXmlWriteHandler;
052import org.jfree.xml.writer.RootXmlWriteHandler;
053import org.jfree.xml.writer.XMLWriter;
054import org.jfree.xml.writer.XMLWriterException;
055
056/**
057 * A handler for writing {@link GradientPaint} objects.
058 */
059public class GradientPaintWriteHandler extends AbstractXmlWriteHandler  {
060
061    /**
062     * Default constructor.
063     */
064    public GradientPaintWriteHandler() {
065        super();
066    }
067
068    /**
069     * Performs the writing of a {@link GradientPaint} object.
070     *
071     * @param tagName  the tag name.
072     * @param object  the {@link GradientPaint} object.
073     * @param writer  the writer.
074     * @param mPlexAttribute  ??.
075     * @param mPlexValue  ??.
076     * 
077     * @throws IOException if there is an I/O error.
078     * @throws XMLWriterException if there is a writer error.
079     */
080    public void write(final String tagName, final Object object, final XMLWriter writer,
081                      final String mPlexAttribute, final String mPlexValue)
082        throws IOException, XMLWriterException {
083        final GradientPaint paint = (GradientPaint) object;
084        writer.writeTag(tagName, mPlexAttribute, mPlexValue, false);
085        writer.startBlock();
086        final RootXmlWriteHandler rootHandler = getRootHandler();
087        rootHandler.write("color1", paint.getColor1(), Color.class, writer);
088        writer.allowLineBreak();
089        rootHandler.write("color2", paint.getColor2(), Color.class, writer);
090        writer.allowLineBreak();
091        rootHandler.write("point1", paint.getPoint1(), Point2D.class, writer);
092        writer.allowLineBreak();
093        rootHandler.write("point2", paint.getPoint2(), Point2D.class, writer);
094        writer.endBlock();
095        writer.writeCloseTag(tagName);        
096    }
097}