QuaquaPantherSeparatorUI.java

/*
 * @(#)QuaquaPantherSeparatorUI.java 
 *
 * Copyright (c) 2001-2010 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.panther;

import ch.randelshofer.quaqua.*;
import ch.randelshofer.quaqua.util.*;
import ch.randelshofer.quaqua.util.Debug;
import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;
/**
 * A replacement for the AquaSeparatorUI.
 * <p>
 * This class provides the following workaround for an issue in Apple's
 * implementation of the Aqua Look and Feel in Java 1.4.1:
 * <ul>
 * <li>Menu separators are drawn using Separator.highlight and Separator.shadow
 * colors instead of a black and white line.
 * This fix affects JSeparator's.
 * </li>
 * </ul>
 *
 * @author Werner Randelshofer, Hausmatt 10, CH-6405 Immensee, Switzerland
 * @version $Id: QuaquaPantherSeparatorUI.java 362 2010-11-21 17:35:47Z wrandelshofer $
 */
public class QuaquaPantherSeparatorUI extends BasicSeparatorUI implements VisuallyLayoutable {
    
    /** Creates a new instance of QuaquaSeparatorUI */
    public QuaquaPantherSeparatorUI() {
    }
    
    public static ComponentUI createUI(JComponent c) {
        return new QuaquaPantherSeparatorUI();
    }
    
    protected void installDefaults( JSeparator s ) {
        super.installDefaults(s);
        LookAndFeel.installBorder( s, "Separator.border");
    }
    
    public void paint(Graphics g, JComponent c) {
        Dimension s = c.getSize();
        if (c.getParent() instanceof JPopupMenu) {
            Color highlightColor = UIManager.getColor("Separator.highlight");
            Color shadowColor = UIManager.getColor("Separator.shadow");
            if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL ) {
                g.setColor( highlightColor );
                g.drawLine( s.width / 2 - 1 , 1, s.width / 2 - 1, s.height - 2 );
                g.setColor( shadowColor );
                g.drawLine( s.width / 2, 1, s.width / 2, s.height - 2);
            } else { // HORIZONTAL
                g.setColor( highlightColor );
                g.drawLine( 1, s.height / 2 - 1, s.width - 2, s.height / 2 - 1 );
                g.setColor( shadowColor );
                g.drawLine( 1, s.height / 2, s.width - 2, s.height / 2 );
            }
        } else {
            Insets insets = c.getInsets();
            Color highlightColor = UIManager.getColor("Separator.foreground");
            Color shadowColor = UIManager.getColor("Separator.background");
            if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL ) {
                g.setColor( highlightColor );
                g.drawLine( insets.left, insets.top, insets.left, s.height - insets.bottom - 1);
                g.setColor( shadowColor );
                g.drawLine( insets.left + 1, insets.top, insets.left + 1, s.height - insets.bottom - 1);
            } else { // HORIZONTAL
                g.setColor( highlightColor );
                g.drawLine( insets.left, insets.top, s.width - insets.right - 1, insets.top);
                g.setColor( shadowColor );
                g.drawLine( insets.left, insets.top + 1, s.width - insets.right - 1, insets.top + 1);
            }
        }
        Debug.paint(g, c, this);
    }
    
    public Dimension getMinimumSize(JComponent c) {
        return getPreferredSize(c);
    }
    
    public Dimension getPreferredSize( JComponent c ) {
        if (c.getParent() instanceof JPopupMenu) {
            if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL )
                return new Dimension( 12, 0 );
            else
                return new Dimension( 0, 12 );
        } else {
            Insets insets = c.getInsets();
            if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL )
                return new Dimension(2 + insets.left + insets.right, insets.top + insets.bottom);
            else
                return new Dimension(insets.left + insets.right, 2 + insets.top + insets.bottom);
        }
    }
    
    public Dimension getMaximumSize( JComponent c ) {
        Dimension d = getPreferredSize(c);
        if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL )
            d.height = Integer.MAX_VALUE;
        else {
            d.width = Integer.MAX_VALUE;
        }
        return d;
    }
    
    public Insets getVisualMargin(JSeparator tc) {
        Insets margin = (Insets) tc.getClientProperty("Quaqua.Component.visualMargin");
        if (margin == null) margin = UIManager.getInsets("Component.visualMargin");
        return (margin == null) ? new Insets(0, 0, 0 ,0) : margin;
    }
    
    public int getBaseline(JComponent c, int width, int height) {
        return -1;
    }
    public Rectangle getVisualBounds(JComponent c, int type, int width, int height) {
        Rectangle bounds = new Rectangle(0,0,width,height);
        if (type == VisuallyLayoutable.CLIP_BOUNDS) {
            return bounds;
        }
        
        JSeparator b = (JSeparator) c;
        
        InsetsUtil.subtractInto(getVisualMargin(b), bounds);
        return bounds;
    }
}