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Java > Open Source Codes > salsa > util > WindowUtils


1 /*
2 ** Salsa - Swing Add-On Suite
3 ** Copyright (c) 2001, 2002 by Gerald Bauer
4 **
5 ** This program is free software.
6 **
7 ** You may redistribute it and/or modify it under the terms of the GNU
8 ** General Public License as published by the Free Software Foundation.
9 ** Version 2 of the license should be included with this distribution in
10 ** the file LICENSE, as well as License.html. If the license is not
11 ** included with this distribution, you may find a copy at the FSF web
12 ** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
13 ** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
14 **
15 ** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
16 ** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
17 ** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
18 ** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
19 ** REDISTRIBUTION OF THIS SOFTWARE.
20 **
21 */
22
23 package salsa.util;
24
25 import java.awt.*;
26
27 public class WindowUtils
28 {
29
30    public static void centerOnScreen( Window w )
31    {
32       Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
33       Dimension size = w.getSize();
34       w.setLocation( ( screenSize.width - size.width ) / 2,
35             ( screenSize.height - size.height ) / 2 );
36    }
37
38    public static void centerOnWindow( Window parent, Window child )
39    {
40       Dimension parentSize = parent.getSize();
41       Dimension childSize = child.getSize();
42
43       Point loc = parent.getLocation();
44       child.setLocation( ( parentSize.width - childSize.width ) / 2 + loc.x,
45             ( parentSize.height - childSize.height ) / 2 + loc.y );
46    }
47
48    public static void sizeTo( Window w, double x, double y )
49    {
50       Dimension size = Toolkit.getDefaultToolkit().getScreenSize();
51       w.setSize( ( int ) ( size.width * x ), ( int ) ( size.height * y ) );
52    }
53 }
54
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