/*----------------    FILE HEADER ---------------------------------------
 This file is part of Geoide.
 Copyright (C) 2005-2006 by:
 IDgis B.V.
 http://www.idgis.nl

 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.

 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

 Contact:

 Herman Assink
 IDgis bv
 P.O. Box 15
 7450 AA Holten
 The Netherlands
 E-Mail: herman.assink@idgis.nl

 * @version 1.4.0
 * @author IDgis team
 * 
 ------------------------------------------------------------------------*/
import nl.idgis.giclient.event.*;

class nl.idgis.giclient.event.ChangeEvent extends StateEvent {
    
    private var previousState:Object = null;
    
    function ChangeEvent(source:Object, sourceClassName:String, propertyName:String, previousState:Object) {
        super(source, sourceClassName, CHANGE, propertyName);
        
        this.previousState = previousState;
    }
    
    function getPreviousState():Object {
        return previousState;
    }
    
    function toString():String {
        return "ChangeEvent(" + sourceClassName + ", CHANGE, " + propertyName + ")";
    }
    
}