/**
 * Distributable under LGPL license.
 * See terms of license at gnu.org.
 *
 * Copyright (C)
 * <a href="http://www.inab.org">Spanish National Institute of Bioinformatics (INB)</a>
 * <a href="http://www.bsc.es">Barcelona Supercomputing Center (BSC)</a>
 * <a href="http://inb.bsc.es">Computational Node 6</a>
 */

package org.inb.biomoby.client.gui.auxiliary;

import java.awt.Point;
import javax.swing.JComponent;
import javax.swing.JLayeredPane;
import javax.swing.SwingUtilities;
import org.inb.biomoby.client.gui.AbstractMobyComponent;

/**
 * @author Dmitry Repchevsky
 */

public abstract class AbstractPopupMobyComponent extends AbstractMobyComponent
{
    protected abstract JComponent getPopup();
    
    protected void showPopup(int x, int y)
    {
        JComponent popup = getPopup();
        
        if (popup != null)
        {
            JLayeredPane lp = getRootPane().getLayeredPane();
                    
            lp.add(popup, JLayeredPane.POPUP_LAYER);

            Point p = SwingUtilities.convertPoint(this, x, y, lp);

            int w = popup.getPreferredSize().width;
            int h = popup.getPreferredSize().height;

            if (p.y - h > 0 ||
                p.y > lp.getHeight() - p.y)
            {
                if (p.y < h)
                { // doesn't fit - make height smaller
                    h = p.y;
                }
                p.y -= h;
            }
            else
            {
                h = lp.getHeight() - p.y;
            }

            //if (p.x + w > lp.getWidth() && p.x - w > 0)
            if (p.x - w > 0 ||
                p.x > lp.getWidth() - p.x)
            {
                if (p.x < w)
                { // doesn't fit - make width smaller
                    w = p.x;
                }
                p.x -= w;
            }
            else
            {
                w = lp.getWidth() - p.x;
            }

            popup.setBounds(p.x, p.y, w, h);
        }
    }
    
    protected void hidePopup()
    {
        JComponent popup = getPopup();

        if (popup != null)
        {
            getRootPane().getLayeredPane().remove(popup);
            getRootPane().repaint();
        }
    }

}