/*************************************************************************
*
* $RCSfile: CaretSpinnerModel.java,v $
*
* $Revision: 1.2 $
*
* last change: $Author: obr $ $Date: 2008/05/14 13:21:37 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
package org.openoffice.accessibility.awb.view.text;
import java.lang.Integer;
import java.util.Vector;
import javax.swing.SpinnerModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import com.sun.star.accessibility.XAccessibleText;
import com.sun.star.lang.IndexOutOfBoundsException;
/** A simple model for JSpinner objects that clips the spinner values to valid
text indices.
*/
public class CaretSpinnerModel
implements SpinnerModel
{
public CaretSpinnerModel (XAccessibleText xText)
{
mxText = xText;
maListeners = new Vector ();
}
public void addChangeListener (ChangeListener aListener)
{
if (aListener != null)
maListeners.add (aListener);
}
public void removeChangeListener (ChangeListener aListener)
{
maListeners.removeElement (aListener);
}
public Object getNextValue ()
{
if (mxText != null)
{
int nPosition = mxText.getCaretPosition();
if (nPosition+1 <= mxText.getCharacterCount())
return new Integer (nPosition+1);
}
return null;
}
public Object getPreviousValue ()
{
if (mxText != null)
{
int nPosition = mxText.getCaretPosition();
if (nPosition > 0)
return new Integer (nPosition-1);
}
return null;
}
public Object getValue ()
{
if (mxText != null)
return new Integer (mxText.getCaretPosition());
else
return null;
}
public void setValue (Object aValue)
{
if (mxText != null)
if (aValue instanceof Integer)
{
try
{
if( ((Integer)aValue).intValue() != mxText.getCaretPosition() )
mxText.setCaretPosition (((Integer)aValue).intValue());
}
catch (IndexOutOfBoundsException aException)
{
}
}
}
/** Call this method when the caret position has changes so that the model
can inform its listeners about it.
*/
public void Update ()
{
ChangeEvent aEvent = new ChangeEvent (this);
for (int i=0; i<maListeners.size(); i++)
((ChangeListener)maListeners.elementAt(i)).stateChanged (aEvent);
}
private XAccessibleText mxText;
private Integer maValue;
private Vector maListeners;
}