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 org.xml.sax.SAXException;
024    
025    import javax.swing.*;
026    import java.awt.*;
027    import java.util.Map;
028    
029    /**
030     * @since 0.1a
031     * @author Francois Beausoleil, <a href="mailto:fbos@users.sourceforge.net">fbos@users.sourceforge.net</a>
032     */
033    public class WindowTagHandler extends AbstractTagHandler {
034        /**
035         * The name of the type attribute.
036         */
037        protected static final String ATTR_TYPE = "type";
038    
039        /**
040         * The value of the type attribute which will instantiate a
041         * {@link javax.swing.JDialog JDialog}.
042         */
043        protected static final String JDIALOG_VALUE = "jdialog";
044    
045        /**
046         * The value of the type attribute which will instantiate a
047         * {@link javax.swing.JFrame JFrame}.
048         */
049        protected static final String JFRAME_VALUE = "jframe";
050    
051        public void enterElement(Map atts) throws SAXException {
052            Window window = null;
053    
054            if (atts.get(ATTR_TYPE).equals(JDIALOG_VALUE)) {
055                window = new JDialog();
056            } else if (atts.get(ATTR_TYPE).equals(JFRAME_VALUE)) {
057                window = new JFrame();
058            }
059    
060            tagContext.put(TagHandler.CURRENT_WINDOW_ID_KEY, atts.get(ATTR_ID));
061            tagContext.put(TagHandler.CURRENT_WINDOW_KEY, window);
062    
063            if (null != atts.get(ATTR_ID)) {
064                Map m = (Map)tagContext.get(TagHandler.OBJECTS_MAP_KEY);
065                m.put(atts.get(ATTR_ID), window);
066            }
067    
068            pushCurrentObject((String)atts.get(ATTR_ID), window);
069        }
070    
071        public void exitElement() throws SAXException {
072            popCurrentObject();
073    
074            tagContext.remove(TagHandler.CURRENT_WINDOW_KEY);
075            tagContext.remove(TagHandler.CURRENT_WINDOW_ID_KEY);
076        }
077    }