/*******************************************************************************
 * Copyright (c) 2002, 2015 QNX Software Systems and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 * QNX Software Systems - Initial API and implementation
 *******************************************************************************/

package org.eclipse.cdt.internal.autotools.ui.preferences;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Layout;

public class TabFolderLayout extends Layout {

	@Override
	protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
		if (wHint != SWT.DEFAULT && hHint != SWT.DEFAULT)
			return new Point(wHint, hHint);

		Control[] children = composite.getChildren();
		int count = children.length;
		int maxWidth = 0, maxHeight = 0;
		for (int i = 0; i < count; i++) {
			Control child = children[i];
			Point pt = child.computeSize(SWT.DEFAULT, SWT.DEFAULT, flushCache);
			maxWidth = Math.max(maxWidth, pt.x);
			maxHeight = Math.max(maxHeight, pt.y);
		}

		if (wHint != SWT.DEFAULT)
			maxWidth = wHint;
		if (hHint != SWT.DEFAULT)
			maxHeight = hHint;

		return new Point(maxWidth, maxHeight);

	}

	@Override
	protected void layout(Composite composite, boolean flushCache) {
		Rectangle rect = composite.getClientArea();

		Control[] children = composite.getChildren();
		for (int i = 0; i < children.length; i++) {
			children[i].setBounds(rect);
		}
	}
}
