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.utils.KeyStrokeParser;
023 import org.xml.sax.SAXException;
024
025 import javax.swing.*;
026 import java.util.Map;
027
028 /**
029 * @author Francois Beausoleil, <a href="mailto:fbos@users.sourceforge.net">fbos@users.sourceforge.net</a>
030 */
031 public class ItemTagHandler extends AbstractControlTagHandler {
032 /**
033 * The prefix to add to the group name for searching in the context's
034 * {@link jgb.builder.TagHandler#OBJECTS_MAP_KEY OBJECTS_MAP_KEY}.
035 * <p>When adding menu radio buttons in groups, </p>
036 */
037 public static final String GROUP_NAME_PREFIX = "items.groups.";
038
039 /**
040 * The value of the type attribute which instantiates a "normal" menu item.
041 */
042 public static final String TYPE_NORMAL = "normal";
043
044 /**
045 * The value of the type attribute which instantiates a checkbox menu item.
046 */
047 public static final String TYPE_CHECK = "check";
048
049 protected void enterElement(Map atts) throws SAXException {
050 JMenuItem item = null;
051 if (TYPE_CHECK.equals(atts.get(ATTR_TYPE))) {
052 item = new JCheckBoxMenuItem();
053 } else if (TYPE_RADIO.equals(atts.get(ATTR_TYPE))) {
054 item = new JRadioButtonMenuItem();
055 } else {
056 item = new JMenuItem();
057 }
058
059 if (TYPE_NORMAL.equals(atts.get(ATTR_TYPE)) == false
060 && atts.containsKey(ATTR_SELECTED)) {
061 if ("true".equals(atts.get(ATTR_SELECTED))) {
062 item.setSelected(true);
063 }
064 }
065
066 if (atts.containsKey(ATTR_TEXT)) {
067 item.setText((String)atts.get(ATTR_TEXT));
068 }
069
070 if (atts.containsKey(ATTR_MNEMONIC)) {
071 item.setMnemonic(((String)atts.get(ATTR_MNEMONIC)).charAt(0));
072 }
073
074 if (atts.containsKey(ATTR_ACCELERATOR)) {
075 item.setAccelerator(
076 KeyStrokeParser.getKeyStroke(
077 (String)atts.get(ATTR_ACCELERATOR))
078 );
079 }
080
081 if (atts.containsKey(ATTR_GROUP)) {
082 String groupName = (String)atts.get(ATTR_GROUP);
083 ButtonGroup group = (ButtonGroup)getObject(GROUP_NAME_PREFIX + groupName);
084 if (group == null) {
085 group = new ButtonGroup();
086 putObject(GROUP_NAME_PREFIX + groupName, group);
087 }
088
089 group.add(item);
090 }
091
092 if (atts.containsKey(ATTR_ID)) {
093 putObject((String)atts.get(ATTR_ID), item);
094 }
095
096 JMenu menu = (JMenu)getCurrentControl();
097 menu.add(item);
098
099 pushCurrentObject((String)atts.get(ATTR_ID), item);
100 }
101
102 protected void exitElement() throws SAXException {
103 popCurrentObject();
104 }
105
106 protected String getDefaultPackagePrefix() {
107 return null;
108 }
109 }