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 org.xml.sax.SAXException;
023
024 import java.util.Map;
025
026 /**
027 * @since 0.1a
028 * @author Francois Beausoleil, <a href="mailto:fbos@users.sourceforge.net">fbos@users.sourceforge.net</a>
029 */
030 public class ValueTagHandler extends AbstractValueTagHandler {
031 /**
032 * The name of the data attribute.
033 */
034 protected static final String ATTR_DATA = "data";
035
036 /**
037 * The name of the type attribute.
038 */
039 protected static final String ATTR_TYPE = "type";
040
041 /**
042 * The value of type which instantiates a boolean value.
043 */
044 protected static final String BOOLEAN_VALUE = "boolean";
045
046 /**
047 * The value of type which instantiates a byte value.
048 */
049 protected static final String BYTE_VALUE = "byte";
050
051 /**
052 * The value of type which instantiates a short value.
053 */
054 protected static final String SHORT_VALUE = "short";
055
056 /**
057 * The value of type which instantiates an int value.
058 */
059 protected static final String INT_VALUE = "int";
060
061 /**
062 * The value of type which instantiates a long value.
063 */
064 protected static final String LONG_VALUE = "long";
065
066 /**
067 * The value of type which instantiates a float value.
068 */
069 protected static final String FLOAT_VALUE = "float";
070
071 /**
072 * The value of type which instantiates a double value.
073 */
074 protected static final String DOUBLE_VALUE = "double";
075
076 /**
077 * The value of type which instantiates a char value.
078 */
079 protected static final String CHAR_VALUE = "char";
080
081 /**
082 * The value of type which instantiates a {@link java.lang.String String}
083 * object.
084 */
085 protected static final String STRING_VALUE = "string";
086
087 public void enterElement(Map atts) throws SAXException {
088 String type = (String)atts.get(ATTR_TYPE);
089 String value = (String)atts.get(ATTR_DATA);
090
091 if (type.equals(BOOLEAN_VALUE)) {
092 updateContextParameters(Boolean.TYPE, new Boolean(value));
093 } else if (type.equals(BYTE_VALUE)) {
094 updateContextParameters(Byte.TYPE, new Byte(value));
095 } else if (type.equals(SHORT_VALUE)) {
096 updateContextParameters(Short.TYPE, new Short(value));
097 } else if (type.equals(INT_VALUE)) {
098 updateContextParameters(Integer.TYPE, new Integer(value));
099 } else if (type.equals(LONG_VALUE)) {
100 updateContextParameters(Long.TYPE, new Long(value));
101 } else if (type.equals(FLOAT_VALUE)) {
102 updateContextParameters(Float.TYPE, new Float(value));
103 } else if (type.equals(DOUBLE_VALUE)) {
104 updateContextParameters(Double.TYPE, new Double(value));
105 } else if (type.equals(CHAR_VALUE)) {
106 updateContextParameters(Character.TYPE, new Character(value.charAt(0)));
107 } else if (type.equals(STRING_VALUE)) {
108 updateContextParameters(String.class, value);
109 } else {
110 throwParsingException("Unrecognized type: " + type);
111 }
112 }
113
114 protected void exitElement() throws SAXException {
115 }
116 }