/*******************************************************************************
 * 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
 *******************************************************************************/
module dwt.layout.FillData;

import dwt.SWT;
import dwt.graphics.Point;
import dwt.widgets.Control;

class FillData {

	int defaultWidth = -1, defaultHeight = -1;
	int currentWhint, currentHhint, currentWidth = -1, currentHeight = -1;

Point computeSize (Control control, int wHint, int hHint, bool flushCache_) {
	if (flushCache_) flushCache();
	if (wHint is SWT.DEFAULT && hHint is SWT.DEFAULT) {
		if (defaultWidth is -1 || defaultHeight is -1) {
			Point size = control.computeSize (wHint, hHint, flushCache_);
			defaultWidth = size.x;
			defaultHeight = size.y;
		}
		return new Point(defaultWidth, defaultHeight);
	}
	if (currentWidth is -1 || currentHeight is -1 || wHint !is currentWhint || hHint !is 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;
}
}