001    /**
002     * Java Gui Builder - A library to build GUIs using an XML file.
003     * Copyright 2002, 2003 (C) François Beausoleil
004     *
005     * This library is free software; you can redistribute it and/or
006     * modify it under the terms of the GNU Lesser General Public
007     * License as published by the Free Software Foundation; either
008     * version 2.1 of the License, or (at your option) any later version.
009     *
010     * This library is distributed in the hope that it will be useful,
011     * but WITHOUT ANY WARRANTY; without even the implied warranty of
012     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
013     * Lesser General Public License for more details.
014     *
015     * You should have received a copy of the GNU Lesser General Public
016     * License along with this library; if not, write to the Free Software
017     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
018     */
019    
020    package jgb.handlers.swing;
021    
022    import jgb.builder.TagHandler;
023    import jgb.builder.utils.MethodCall;
024    import org.xml.sax.SAXException;
025    
026    import java.util.Map;
027    
028    /**
029     * @since 0.1a
030     * @author Francois Beausoleil, <a href="mailto:fbos@users.sourceforge.net">fbos@users.sourceforge.net</a>
031     */
032    public class PropertyTagHandler extends MethodCallTagHandler {
033        /**
034         * The name of the name attribute.
035         */
036        protected static final String ATTR_NAME = "name";
037    
038        public void exitElement() throws SAXException {
039            MethodCall methodCall = getContextAccumulator(tagContext);
040    
041            Class paramClass = (Class)tagContext.get(TagHandler.PARAMETER_CLASS_KEY);
042            Object paramValue = tagContext.get(TagHandler.PARAMETER_VALUE_KEY);
043            methodCall.addParameter(paramClass, paramValue);
044    
045            // Watch out !  We are extending MethodCallTagHandler and not AbstractTagHandler
046            super.exitElement();
047    
048            tagContext.remove(TagHandler.PARAMETER_CLASS_KEY);
049            tagContext.remove(TagHandler.PARAMETER_VALUE_KEY);
050    
051            tagContext.remove(TagHandler.CALL_RETURN_CLASS_KEY);
052            tagContext.remove(TagHandler.CALL_RETURN_VALUE_KEY);
053        }
054    
055        protected String getMethodName(Map atts) {
056            String reqName = (String)atts.get(ATTR_NAME);
057    
058            StringBuffer methodName = new StringBuffer();
059            methodName.append("set");
060            methodName.append(Character.toUpperCase(reqName.charAt(0)));
061            methodName.append(reqName.substring(1));
062            return methodName.toString();
063        }
064    
065        protected Object getReferenceObject(Map atts) {
066            if ((String)atts.get(ATTR_REFID) == null) {
067                return getCurrentObject();
068            } else {
069                return getObject((String)atts.get(ATTR_REFID));
070            }
071        }
072    }