01: /**
02: * Caption: Zaval Java Resource Editor
03: * $Revision: 0.37 $
04: * $Date: 2002/03/28 9:24:42 $
05: *
06: * @author: Victor Krapivin
07: * @version: 1.3
08: *
09: * Zaval JRC Editor is a visual editor which allows you to manipulate
10: * localization strings for all Java based software with appropriate
11: * support embedded.
12: *
13: * For more info on this product read Zaval Java Resource Editor User's Guide
14: * (It comes within this package).
15: * The latest product version is always available from the product's homepage:
16: * http://www.zaval.org/products/jrc-editor/
17: * and from the SourceForge:
18: * http://sourceforge.net/projects/zaval0002/
19: *
20: * Contacts:
21: * Support : support@zaval.org
22: * Change Requests : change-request@zaval.org
23: * Feedback : feedback@zaval.org
24: * Other : info@zaval.org
25: *
26: * Copyright (C) 2001-2002 Zaval Creative Engineering Group (http://www.zaval.org)
27: *
28: * This program is free software; you can redistribute it and/or
29: * modify it under the terms of the GNU General Public License
30: * (version 2) as published by the Free Software Foundation.
31: *
32: * This program is distributed in the hope that it will be useful,
33: * but WITHOUT ANY WARRANTY; without even the implied warranty of
34: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
35: * GNU General Public License for more details.
36: *
37: * You should have received a copy of the GNU General Public License
38: * along with this program; if not, write to the Free Software
39: * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
40: *
41: */package org.zaval.awt.util;
42:
43: import java.awt.*;
44: import java.util.*;
45:
46: public abstract class Metrics {
47: private boolean isValid = false;
48:
49: public void invalidate() {
50: if (isValid)
51: isValid = false;
52: }
53:
54: public void validate() {
55: if (!isValid) {
56: recalc();
57: isValid = true;
58: }
59: }
60:
61: public boolean isValid() {
62: return isValid;
63: }
64:
65: public abstract void recalc();
66: }
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