// $Header: /home/cvs/jakarta-jmeter/src/core/org/apache/jmeter/gui/util/VerticalPanel.java,v 1.5 2004/02/14 03:34:29 sebb Exp $
/*
 * Copyright 2003-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
*/

/*
 * Created on Apr 25, 2003
 *
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
package org.apache.jmeter.gui.util;

import java.awt.BorderLayout;
import java.awt.Component;

import javax.swing.Box;
import javax.swing.JComponent;
import javax.swing.JPanel;

/**
 * @author ano ano
 * @version $Revision: 1.5 $
 */
public class VerticalPanel extends JPanel
{
    private Box subPanel = Box.createVerticalBox();
    private float horizontalAlign;
    private int vgap;
    
    public VerticalPanel()
    {
        this(5, LEFT_ALIGNMENT);
    }
    
    public VerticalPanel(int vgap, float horizontalAlign)
    {
        super(new BorderLayout());
        add(subPanel,BorderLayout.NORTH);
        this.vgap = vgap;
        this.horizontalAlign = horizontalAlign;
    }
    
    /* (non-Javadoc)
     * @see java.awt.Container#add(java.awt.Component)
     */
    public Component add(Component c)
    {
        // This won't work right if we remove components.  But we don't, so I'm
        // not going to worry about it right now.
        if (vgap > 0 && subPanel.getComponentCount() > 0)
        {
            subPanel.add(Box.createVerticalStrut(vgap));
        }
        
        if (c instanceof JComponent)
        {
            ((JComponent)c).setAlignmentX(horizontalAlign);
        }
        
        return subPanel.add(c);
    }
}