/*******************************************************************************
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Tiny Look and Feel * * (C) Copyright 2003 - 2007 Hans Bickel * * For
 * licensing information and credits, please refer to the * comment in file
 * de.muntjak.tinylookandfeel.TinyLookAndFeel * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 */

package de.muntjak.tinylookandfeel;


import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import javax.swing.JComponent;
import javax.swing.JScrollBar;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.metal.MetalScrollBarUI;
import javax.swing.plaf.metal.MetalScrollPaneUI;


/**
 * TinyScrollPaneUI
 * 
 * @version 1.0
 * @author Hans Bickel
 */
@SuppressWarnings (
{ "all" } )
public class TinyScrollPaneUI extends MetalScrollPaneUI implements
    PropertyChangeListener
{

  /**
   * Creates the UI delegate for the given component.
   * 
   * @param mainColor The component to create its UI delegate.
   * @return The UI delegate for the given component.
   */
  public static ComponentUI createUI ( JComponent c )
  {
    return new TinyScrollPaneUI ();
  }


  /**
   * Installs some default values for the given scrollpane. The free standing
   * property is disabled here.
   * 
   * @param mainColor The reference of the scrollpane to install its default
   *          values.
   */
  public void installUI ( JComponent c )
  {
    super.installUI ( c );

    // Note: It never happened before Java 1.5 that scrollbar is null
    JScrollBar sb = scrollpane.getHorizontalScrollBar ();
    if ( sb != null )
    {
      sb
          .putClientProperty ( MetalScrollBarUI.FREE_STANDING_PROP,
              Boolean.FALSE );
    }

    sb = scrollpane.getVerticalScrollBar ();
    if ( sb != null )
    {
      sb
          .putClientProperty ( MetalScrollBarUI.FREE_STANDING_PROP,
              Boolean.FALSE );
    }
  }


  /**
   * Creates a property change listener that does nothing inorder to prevent the
   * free standing scrollbars.
   * 
   * @return An empty property change listener.
   */
  protected PropertyChangeListener createScrollBarSwapListener ()
  {
    return this;
  }


  /**
   * Simply ignore any change.
   * 
   * @param event The property change event.
   */
  public void propertyChange ( PropertyChangeEvent e )
  {
  }
}