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     * FontReadHandler
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: FontReadHandler.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.Font;
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 a font definition.
053     */
054    public class FontReadHandler extends AbstractXmlReadHandler  {
055        
056        /** The font under construction. */
057        private Font font;
058    
059        /**
060         * Creates a new SAX handler for reading a {@link Font} from XML.
061         */
062        public FontReadHandler() {
063            super();
064        }
065    
066        /**
067         * Called at the start of parsing a font element, this method reads the attributes and
068         * constructs the font. 
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 family = attrs.getValue("family");
076            final int size = Integer.parseInt(attrs.getValue("size"));
077            final int style = getFontStyle(attrs.getValue("style"));
078            this.font = new Font(family, style, size);
079        }
080    
081        /**
082         * Converts a string to a font style constant.
083         * 
084         * @param style  the style as text.
085         * 
086         * @return The font style.
087         */
088        private int getFontStyle (final String style) {
089            if ("bold-italic".equals(style)) {
090                return Font.BOLD | Font.ITALIC;
091            }
092            if ("bold".equals(style)) {
093                return Font.BOLD;
094            }
095            if ("italic".equals(style)) {
096                return Font.ITALIC;
097            }
098            return Font.PLAIN;
099        }
100    
101        /**
102         * Returns the font under construction.
103         * 
104         * @return the font.
105         */
106        public Object getObject() {
107            return this.font;
108        }
109        
110    }