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 * ColorReadHandler
029 * ----------------
030 * (C) Copyright 2003, by Thomas Morgner and Contributors.
031 *
032 * Original Author: Thomas Morgner;
033 * Contributor(s): David Gilbert (for Object Refinery Limited);
034 *
035 * $Id: ColorReadHandler.java,v 1.2 2005/10/18 13:33:32 mungady Exp $
036 *
037 * Changes (from 25-Nov-2003)
038 * --------------------------
039 * 25-Nov-2003 : Added standard header and Javadocs (DG);
040 *
041 */
042
043 package org.jfree.xml.parser.coretypes;
044
045 import java.awt.Color;
046
047 import org.jfree.xml.parser.AbstractXmlReadHandler;
048 import org.xml.sax.Attributes;
049 import org.xml.sax.SAXException;
050
051 /**
052 * A SAX handler for reading {@link Color} objects from an XML element.
053 */
054 public class ColorReadHandler extends AbstractXmlReadHandler {
055
056 /** The color under construction. */
057 private Color color;
058
059 /**
060 * Creates a new handler.
061 */
062 public ColorReadHandler() {
063 super();
064 }
065
066 /**
067 * Called at the start of parsing a {@link Color} element, this method reads the attributes and
068 * constructs the {@link Color}.
069 *
070 * @param attrs the attributes.
071 *
072 * @throws SAXException to indicate a parsing error.
073 */
074 protected void startParsing(final Attributes attrs) throws SAXException {
075 final String encodedValue = attrs.getValue("value");
076 this.color = Color.decode(encodedValue);
077 if (attrs.getValue("alpha") != null) {
078 this.color = new Color(this.color.getRed(), this.color.getGreen(),
079 this.color.getBlue(),
080 Integer.parseInt(attrs.getValue("alpha")));
081 }
082 }
083
084 /**
085 * Returns the color under construction.
086 *
087 * @return the color.
088 */
089 public Object getObject() {
090 return this.color;
091 }
092
093 }