basicseparatorui.java

来自「java1.6众多例子参考」· Java 代码 · 共 106 行

/*
 * @(#)BasicSeparatorUI.java	1.25 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package javax.swing.plaf.basic;

import javax.swing.*;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.Rectangle;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.SeparatorUI;


/**
 * A Basic L&F implementation of SeparatorUI.  This implementation 
 * is a "combined" view/controller.
 *
 * @version 1.25 11/17/05
 * @author Georges Saab
 * @author Jeff Shapiro
 */

public class BasicSeparatorUI extends SeparatorUI
{
    protected Color shadow;
    protected Color highlight;

    public static ComponentUI createUI( JComponent c )
    {
        return new BasicSeparatorUI();
    }

    public void installUI( JComponent c )
    {
        installDefaults( (JSeparator)c );
        installListeners( (JSeparator)c );
    }

    public void uninstallUI(JComponent c)
    {
        uninstallDefaults( (JSeparator)c );
        uninstallListeners( (JSeparator)c );
    }

    protected void installDefaults( JSeparator s )
    {
        LookAndFeel.installColors( s, "Separator.background", "Separator.foreground" );
        LookAndFeel.installProperty( s, "opaque", Boolean.FALSE);
    }

    protected void uninstallDefaults( JSeparator s )
    {
    }

    protected void installListeners( JSeparator s )
    {
    }

    protected void uninstallListeners( JSeparator s )
    {
    }

    public void paint( Graphics g, JComponent c )
    {
        Dimension s = c.getSize();

	if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL )
	{
	  g.setColor( c.getForeground() );
	  g.drawLine( 0, 0, 0, s.height );

	  g.setColor( c.getBackground() );
	  g.drawLine( 1, 0, 1, s.height );
	}
	else  // HORIZONTAL
	{
	  g.setColor( c.getForeground() );
	  g.drawLine( 0, 0, s.width, 0 );

	  g.setColor( c.getBackground() );
	  g.drawLine( 0, 1, s.width, 1 );
	}
    }

    public Dimension getPreferredSize( JComponent c )
    { 
	if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL )
	    return new Dimension( 2, 0 );
	else
	    return new Dimension( 0, 2 );
    }

    public Dimension getMinimumSize( JComponent c ) { return null; }
    public Dimension getMaximumSize( JComponent c ) { return null; }
}