/*
* ScrollBar.java
* SwingOSC
*
* Copyright (c) 2005-2011 Hanns Holger Rutz. All rights reserved.
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either
* version 2, june 1991 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License (gpl.txt) along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*
* For further information, please contact Hanns Holger Rutz at
* contact@sciss.de
*
*
* Changelog:
* 16-Jul-07 created
*/
package de.sciss.swingosc;
import java.awt.AWTEventMulticaster;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.AdjustmentEvent;
import java.awt.event.AdjustmentListener;
//import java.awt.event.KeyEvent;
//import javax.swing.InputMap;
import javax.swing.JScrollBar;
//import javax.swing.KeyStroke;
//import javax.swing.UIManager;
/**
* A simple extention of <code>javax.swing.JScrollBar</code>
* which adds <code>ActionListener</code> functionality
* and a <code>setValueAction</code> method for programmatically
* dragging the slider.
*
* @author Hanns Holger Rutz
* @version 0.54, 17-Jul-07
*/
public class ScrollBar
extends JScrollBar
implements AdjustmentListener
{
private ActionListener al = null;
// private boolean valueWasAdjusting = false;
public ScrollBar()
{
super();
init();
}
public ScrollBar( int orientation )
{
super( orientation );
init();
}
public ScrollBar( int orientation, int value, int extent, int min, int max )
{
super( orientation, value, extent, min, max );
init();
}
private void init()
{
addAdjustmentListener( this );
// final InputMap imap = getInputMap();
// imap.put( KeyStroke.getKeyStroke( KeyEvent.VK_LEFT, 0 ), "none" );
// imap.put( KeyStroke.getKeyStroke( KeyEvent.VK_UP, 0 ), "none" );
// imap.put( KeyStroke.getKeyStroke( KeyEvent.VK_RIGHT, 0 ), "none" );
// imap.put( KeyStroke.getKeyStroke( KeyEvent.VK_DOWN, 0 ), "none" );
}
// public boolean getValueWasAdjusting()
// {
// return valueWasAdjusting;
// }
public void setValueNoAction( int n )
{
removeAdjustmentListener( this );
try {
super.setValue( n );
} finally {
addAdjustmentListener( this );
}
}
public void setValuesNoAction( int newValue, int newExtent, int newMin, int newMax )
{
removeAdjustmentListener( this );
try {
super.setValues( newValue, newExtent, newMin, newMax );
} finally {
addAdjustmentListener( this );
}
}
// public void setValueAction( int n )
// {
// setValue( n );
// fireStateChanged();
// }
public synchronized void addActionListener( ActionListener l )
{
al = AWTEventMulticaster.add( al, l );
}
public synchronized void removeActionListener( ActionListener l )
{
al = AWTEventMulticaster.remove( al, l );
}
public void adjustmentValueChanged( AdjustmentEvent e )
{
// valueWasAdjusting = e.getValueIsAdjusting();
final ActionListener l = al;
if( l != null ) {
l.actionPerformed( new ActionEvent( e.getSource(), ActionEvent.ACTION_PERFORMED, null ));
}
}
}