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 043package org.jfree.xml.parser.coretypes; 044 045import java.awt.Color; 046 047import org.jfree.xml.parser.AbstractXmlReadHandler; 048import org.xml.sax.Attributes; 049import org.xml.sax.SAXException; 050 051/** 052 * A SAX handler for reading {@link Color} objects from an XML element. 053 */ 054public 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}