GroupBox.java

/*
 * @(#)BoxBorder.java  
 *
 * Copyright (c) 2005-2010 Werner Randelshofer, Immensee, Switzerland.
 * All rights reserved.
 *
 * You may not use, copy or modify this file, except in compliance with the
 * license agreement you entered into with Werner Randelshofer.
 * For details see accompanying license terms.
 */

package ch.randelshofer.quaqua.util;

import ch.randelshofer.quaqua.*;
import ch.randelshofer.quaqua.border.BackgroundBorder;
import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;
/**
 * GroupBox draws a Aqua-style group box similar to a native Cocoa NSBox.
 * XXX - This class should go away. We can easily get the same functionality
 * by instanciating one of the existing Quaqua border classes.
 *
 * @author  Werner Randelshofer
 * @version $Id: GroupBox.java 363 2010-11-21 17:41:04Z wrandelshofer $
 */
public class GroupBox implements BackgroundBorder {
    private static Border boxBackground = new CompoundBorder(
    new EmptyBorder(-4,-3,-3,-3),
    QuaquaBorderFactory.create(
    Toolkit.getDefaultToolkit().createImage(GroupBox.class.getResource("/ch/randelshofer/quaqua/images/GroupBox.png")),
    new Insets(7,7,7,7), new Insets(7,7,7,7), true, new Color(0x08000000,true), false
    )
    );
    
    private static Border etchedBorder = new EtchedBorder();
    
    public Border getBackgroundBorder() {
        return boxBackground;
    }
    
    public Insets getBorderInsets(Component c) {
        return new Insets(2,3,3,3);
    }
    
    public boolean isBorderOpaque() {
        return false;
    }
    
    public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
        // Components that don't have a UI can't deal with BackgroundBorder
        // interface. As a work around, we paint a Etched border. 
        if ((c instanceof Box) || ! (c instanceof JComponent)) {
            etchedBorder.paintBorder(c, g, x, y, width, height);
        }
    }
}