1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/*******************************************************************************
* Copyright (c) 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.custom;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.*;
class CLayoutData {
int defaultWidth = -1, defaultHeight = -1;
int currentWhint, currentHhint, currentWidth = -1, currentHeight = -1;
Point computeSize (Control control, int wHint, int hHint, boolean flushCache) {
if (flushCache) flushCache();
if (wHint == SWT.DEFAULT && hHint == SWT.DEFAULT) {
if (defaultWidth == -1 || defaultHeight == -1) {
Point size = control.computeSize (wHint, hHint, flushCache);
defaultWidth = size.x;
defaultHeight = size.y;
}
return new Point(defaultWidth, defaultHeight);
}
if (currentWidth == -1 || currentHeight == -1 || wHint != currentWhint || hHint != currentHhint) {
Point size = control.computeSize (wHint, hHint, flushCache);
currentWhint = wHint;
currentHhint = hHint;
currentWidth = size.x;
currentHeight = size.y;
}
return new Point(currentWidth, currentHeight);
}
void flushCache () {
defaultWidth = defaultHeight = -1;
currentWidth = currentHeight = -1;
}
}
|
