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Java > Open Source Codes > org > objectweb > jac > aspects > gui > swing > TimestampViewer


1 /*
2   Copyright (C) 2004 Laurent Martelli <laurent@aopsys.com>
3   
4   This program is free software; you can redistribute it and/or modify
5   it under the terms of the GNU Lesser General Public License as
6   published by the Free Software Foundation; either version 2 of the
7   License, or (at your option) any later version.
8
9   This program is distributed in the hope that it will be useful, but
10   WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with this program; if not, write to the Free Software
16   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
17   USA */

18
19 package org.objectweb.jac.aspects.gui.swing;
20
21 import java.util.Date JavaDoc;
22 import org.objectweb.jac.aspects.gui.DateHourFormat;
23 import org.objectweb.jac.core.rtti.FieldItem;
24
25 /**
26  * A Swing viewer component for date values.
27  */

28
29 public class TimestampViewer extends FormatViewer
30 {
31     /**
32      * Constructs a new date viewer.
33      */

34     public TimestampViewer(Object JavaDoc value, Object JavaDoc substance, FieldItem field) {
35         super(value,substance,field);
36     }
37
38     Date JavaDoc date;
39
40     public TimestampViewer() {
41     }
42
43     public void setValue(Object JavaDoc value) {
44         if (value!=null) {
45             if (date==null) {
46                 // We initialize date here because setValue() is
47
// called from the super constructor, before date
48
// would be initialized by this constructor
49
date = new Date JavaDoc();
50             }
51             date.setTime(((Long JavaDoc)value).longValue());
52             label.setText(format.format(date));
53         } else {
54             label.setText("");
55         }
56     }
57
58     protected void initFormat(FieldItem field) {
59         format = new DateHourFormat(field);
60     }
61 }
62
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