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comparison dwt/custom/CLayoutData.d @ 0:380af2bdd8e5

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author Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date Sat, 09 Aug 2008 17:00:02 +0200
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-1:000000000000 0:380af2bdd8e5
1 /*******************************************************************************
2 * Copyright (c) 2005 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 *
11 * Port to the D Programming language:
12 * Jacob Carlborg <jacob.carlborg@gmail.com>
13 *******************************************************************************/
14 module dwt.custom.CLayoutData;
15
16 import dwt.DWT;
17 import dwt.graphics.Point;
18 import dwt.widgets.Control;
19
20 class CLayoutData {
21
22 int defaultWidth = -1, defaultHeight = -1;
23 int currentWhint, currentHhint, currentWidth = -1, currentHeight = -1;
24
25 Point computeSize (Control control, int wHint, int hHint, bool flushCache) {
26 if (flushCache)
27 flushCache();
28 if (wHint is DWT.DEFAULT && hHint is DWT.DEFAULT) {
29 if (defaultWidth is -1 || defaultHeight is -1) {
30 Point size = control.computeSize(wHint, hHint, flushCache);
31 defaultWidth = size.x;
32 defaultHeight = size.y;
33 }
34 return new Point(defaultWidth, defaultHeight);
35 }
36 if (currentWidth is -1 || currentHeight is -1 || wHint !is currentWhint || hHint !is currentHhint) {
37 Point size = control.computeSize(wHint, hHint, flushCache);
38 currentWhint = wHint;
39 currentHhint = hHint;
40 currentWidth = size.x;
41 currentHeight = size.y;
42 }
43 return new Point(currentWidth, currentHeight);
44 }
45
46 void flushCache () {
47 defaultWidth = defaultHeight = -1;
48 currentWidth = currentHeight = -1;
49 }
50 }