| /******************************************************************************* |
| * 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; |
| } |
| } |