/*
 * Copyright (c) 2009 Declarative Engineering LLC.
 * All rights reserved.  This program and the accompanying materials
 * are made available under the terms of the Declarative Engineering LLC
 * verson 1 which accompanies this distribution, and is available at
 * http://declarativeengineering.com/legal/DE_Developer_License_v1.txt
 */
package com.foundation.view.swt.layout;

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

/**
 * The layout base class.
 */
public abstract class Layout extends org.eclipse.swt.widgets.Layout {
/**
 * Layout constructor.
 */
public Layout() {
}//Layout()//
/**
 * Computes the current size of the composite using this layout.
 * @param composite The composite that uses this layout.
 * @return The current size of the composite.
 */
public Point computeCurrentSize(Composite composite) {
	Point result = new Point(0, 0);
	Control[] children = composite.getChildren();
	
	//Note: This works well, but doesn't account for bottom and right margins.  Subclasses can overload this to add the margins.//
	for(int i = 0; i < children.length; i++) {
		Rectangle rect = children[i].getBounds();
		
		if(children[i].isVisible()) {
			result.x = Math.max(result.x, rect.x + rect.width);
			result.y = Math.max(result.y, rect.y + rect.height);
		}//if//
	}//for//
	
	return result;
}//computeCurrentSize()//
}//Layout//