/*
 * Copyright 2012, 2013 Red Hat, Inc.
 * 
 * This file is part of Thermostat.
 * 
 * Thermostat is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2, or (at your
 * option) any later version.
 * 
 * Thermostat is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 * 
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 * 
 * As a special exception, the copyright holders of this code give
 * you permission to link this code with independent modules to
 * produce an executable, regardless of the license terms of these
 * independent modules, and to copy and distribute the resulting
 * executable under terms of your choice, provided that you also
 * meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module
 * which is not derived from or based on this code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.client.swing.components;

import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Rectangle;

/**
 * A layout that lays components in a vertical stack according to
 * the component hierarchy preferred height.
 */
public class VerticalLayout extends AbstractLayout {
    
    @Override
    protected void doLayout(Container parent) {
        Rectangle rect = new Rectangle();
        for (Component component : parent.getComponents()) {
            Dimension dim = component.getPreferredSize();
            rect.width = parent.getWidth();
            rect.height = dim.height;
            component.setBounds(rect);
            rect.y += dim.height;
        }
    }

    @Override
    public Dimension preferredLayoutSize(Container parent) {
        
        Dimension size = new Dimension();
        for (Component component : parent.getComponents()) {
            Dimension dim = component.getPreferredSize();
            size.width = Math.max(dim.width, size.width);
            size.height += dim.height;
        }
        
        return size;
    }
}