1 /*
2 * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
3 * the spring framework, http://el4j.sf.net
4 * Copyright (C) 2005 by ELCA Informatique SA, Av. de la Harpe 22-24,
5 * 1000 Lausanne, Switzerland, http://www.elca.ch
6 *
7 * EL4J is published under the GNU Lesser General Public License (LGPL)
8 * Version 2.1. See http://www.gnu.org/licenses/
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Lesser General Public License for more details.
14 *
15 * For alternative licensing, please contact info@elca.ch
16 */
17 package com.silvermindsoftware.hitch.validation.response;
18
19 import java.awt.Color;
20
21 import javax.swing.JComponent;
22
23 import ch.elca.el4j.services.gui.swing.GUIApplication;
24
25 /**
26 * A default ValidationResponder that makes the background of the corresponding
27 * GUI element red.
28 *
29 * @svnLink $Revision: 3874 $;$Date: 2009-08-04 14:25:40 +0200 (Di, 04. Aug 2009) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/modules/swing/src/main/java/com/silvermindsoftware/hitch/validation/response/DefaultValidationResponder.java $
30 *
31 * @author Stefan Wismer (SWI)
32 */
33 public class DefaultValidationResponder implements ValidationResponder {
34 /**
35 * Identifier for valid color in component's client property.
36 */
37 protected static final String VALID_COLOR = "Valid Color";
38
39 /**
40 * Color to mark value as invalid.
41 */
42 protected final Color m_invalidColor;
43
44 /**
45 * The default constructor reading the invalidColor from Spring config.
46 */
47 public DefaultValidationResponder() {
48 m_invalidColor = null;
49 }
50
51 /**
52 * @param color the background color if value is invalid
53 */
54 public DefaultValidationResponder(Color color) {
55 m_invalidColor = color;
56 }
57
58 /** {@inheritDoc} */
59 public void setValid(Object object, JComponent component, boolean valid) {
60 if (valid) {
61 setValid(object, component);
62 } else {
63 setInvalid(object, component, null);
64 }
65 }
66
67 /** {@inheritDoc} */
68 public void setValid(Object object, JComponent component) {
69 if (component != null) {
70 if (component.getBackground().equals(getInvalidColor())) {
71 component.setBackground(
72 (Color) component.getClientProperty(VALID_COLOR));
73 }
74 }
75 }
76
77 /** {@inheritDoc} */
78 public void setInvalid(Object object, JComponent component,
79 String message) {
80
81 if (component != null) {
82 if (!component.getBackground().equals(getInvalidColor())) {
83 component.putClientProperty(
84 VALID_COLOR, component.getBackground());
85 component.setBackground(getInvalidColor());
86 }
87 }
88 }
89
90 /**
91 * @return the color to mark a value as invalid.
92 */
93 private Color getInvalidColor() {
94 if (m_invalidColor != null) {
95 return m_invalidColor;
96 } else {
97 return (Color) GUIApplication.getInstance().getConfig()
98 .get("invalidColor");
99 }
100 }
101 }