/*
 * Copyright (c) 2001-2007 JGoodies Karsten Lentzsch. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 *  o Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 *     
 *  o Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution. 
 *     
 *  o Neither the name of JGoodies Karsten Lentzsch nor the names of 
 *    its contributors may be used to endorse or promote products derived 
 *    from this software without specific prior written permission. 
 *     
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

package com.jgoodies.looks.common;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Insets;

import javax.swing.JComponent;
import javax.swing.JSeparator;
import javax.swing.UIManager;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicPopupMenuSeparatorUI;

/**
 * Renders the separator in popup and pull-down menus.
 * Unlike its superclass we use a setting for the insets and
 * it uses a shared UI delegate.
 *
 * @author Karsten Lentzsch
 * @version $Revision: 1.3 $
 */
public final class ExtBasicPopupMenuSeparatorUI extends BasicPopupMenuSeparatorUI {

	private static final int SEPARATOR_HEIGHT = 2;
	
	private Insets insets;
			
    /** Shared UI object. */
    private static ComponentUI popupMenuSeparatorUI;
	
	public static ComponentUI createUI(JComponent b) {
        if (popupMenuSeparatorUI == null) {
            popupMenuSeparatorUI = new ExtBasicPopupMenuSeparatorUI();
        }
		return popupMenuSeparatorUI; 
	}
	
	
	protected void installDefaults(JSeparator s) {
		super.installDefaults(s);
        insets = UIManager.getInsets("PopupMenuSeparator.margin");
	}
	

    public void paint(Graphics g, JComponent c) {
        Dimension s = c.getSize();
        
        int topInset   = insets.top;
        int leftInset  = insets.left;
        int rightInset = insets.right;

        // Paint background
        g.setColor(UIManager.getColor("MenuItem.background"));
        g.fillRect(0, 0, s.width, s.height);

		// Draw side
		/*
		g.setColor(UIManager.getColor("controlHighlight"));
		g.drawLine(0, 0, 0, s.height -1);
		g.drawLine(s.width-1, 0, s.width-1, s.height-1);
		*/
		
		g.translate(0, topInset);	
		g.setColor(c.getForeground());
		g.drawLine(leftInset, 0, s.width - rightInset, 0);

		g.setColor(c.getBackground());
		g.drawLine(leftInset, 1, s.width - rightInset, 1);
		g.translate(0, -topInset);
    }
    

    public Dimension getPreferredSize(JComponent c) { 
    	return new Dimension(0, insets.top + SEPARATOR_HEIGHT + insets.bottom); 
    }
	
}