01: /*
02: * This file is part of the Echo Web Application Framework (hereinafter "Echo").
03: * Copyright (C) 2002-2005 NextApp, Inc.
04: *
05: * Version: MPL 1.1/GPL 2.0/LGPL 2.1
06: *
07: * The contents of this file are subject to the Mozilla Public License Version
08: * 1.1 (the "License"); you may not use this file except in compliance with
09: * the License. You may obtain a copy of the License at
10: * http://www.mozilla.org/MPL/
11: *
12: * Software distributed under the License is distributed on an "AS IS" basis,
13: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14: * for the specific language governing rights and limitations under the
15: * License.
16: *
17: * Alternatively, the contents of this file may be used under the terms of
18: * either the GNU General Public License Version 2 or later (the "GPL"), or
19: * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20: * in which case the provisions of the GPL or the LGPL are applicable instead
21: * of those above. If you wish to allow use of your version of this file only
22: * under the terms of either the GPL or the LGPL, and not to allow others to
23: * use your version of this file under the terms of the MPL, indicate your
24: * decision by deleting the provisions above and replace them with the notice
25: * and other provisions required by the GPL or the LGPL. If you do not delete
26: * the provisions above, a recipient may use your version of this file under
27: * the terms of any one of the MPL, the GPL or the LGPL.
28: */
29:
30: package nextapp.echo2.app.componentxml.propertypeer;
31:
32: import java.util.Collections;
33: import java.util.HashMap;
34: import java.util.Map;
35:
36: import org.w3c.dom.Element;
37:
38: import nextapp.echo2.app.Alignment;
39: import nextapp.echo2.app.componentxml.InvalidPropertyException;
40: import nextapp.echo2.app.componentxml.PropertyXmlPeer;
41: import nextapp.echo2.app.util.DomUtil;
42:
43: /**
44: * <code>PropertyXmlPeer</code> implementation for
45: * <code>nextapp.echo2.app.Alignment</code> properties.
46: */
47: public class AlignmentPeer implements PropertyXmlPeer {
48:
49: private static final Map HORIZONTAL_CONSTANTS;
50: static {
51: Map constantMap = new HashMap();
52: constantMap.put("leading", new Integer(Alignment.LEADING));
53: constantMap.put("trailing", new Integer(Alignment.TRAILING));
54: constantMap.put("left", new Integer(Alignment.LEFT));
55: constantMap.put("center", new Integer(Alignment.CENTER));
56: constantMap.put("right", new Integer(Alignment.RIGHT));
57: HORIZONTAL_CONSTANTS = Collections.unmodifiableMap(constantMap);
58: }
59:
60: private static final Map VERTICAL_CONSTANTS;
61: static {
62: Map constantMap = new HashMap();
63: constantMap.put("top", new Integer(Alignment.TOP));
64: constantMap.put("center", new Integer(Alignment.CENTER));
65: constantMap.put("bottom", new Integer(Alignment.BOTTOM));
66: VERTICAL_CONSTANTS = Collections.unmodifiableMap(constantMap);
67: }
68:
69: /**
70: * @see nextapp.echo2.app.componentxml.PropertyXmlPeer#getValue(java.lang.ClassLoader,
71: * java.lang.Class, org.w3c.dom.Element)
72: */
73: public Object getValue(ClassLoader classLoader, Class objectClass,
74: Element propertyElement) throws InvalidPropertyException {
75: Element alignmentElement = DomUtil.getChildElementByTagName(
76: propertyElement, "alignment");
77: int horizontal = Alignment.DEFAULT;
78: int vertical = Alignment.DEFAULT;
79: if (alignmentElement.hasAttribute("horizontal")) {
80: Integer horizontalValue = (Integer) HORIZONTAL_CONSTANTS
81: .get(alignmentElement.getAttribute("horizontal"));
82: if (horizontalValue != null) {
83: horizontal = horizontalValue.intValue();
84: }
85: }
86: if (alignmentElement.hasAttribute("vertical")) {
87: Integer verticalValue = (Integer) VERTICAL_CONSTANTS
88: .get(alignmentElement.getAttribute("vertical"));
89: if (verticalValue != null) {
90: vertical = verticalValue.intValue();
91: }
92: }
93: return new Alignment(horizontal, vertical);
94: }
95: }
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