OMKChangedControlParameterEventListener.h

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/*
 * This file is part of openMask © INRIA, CNRS, Universite de Rennes 1 1993-2002, thereinafter the Software
 * 
 * The Software has been developped within the Siames Project. 
 * INRIA, the University of Rennes 1 and CNRS jointly hold intellectual property rights
 * 
 * The Software has been registered with the Agence pour la Protection des
 * Programmes (APP) under registration number IDDN.FR.001.510008.00.S.P.2001.000.41200
 *
 * This file may be distributed under the terms of the Q Public License
 * version 1.0 as defined by Trolltech AS of Norway and appearing in the file
 * LICENSE.QPL included in the packaging of this file.
 *
 * Licensees holding valid specific licenses issued by INRIA, CNRS or Université de Rennes 1 
 * for the software may use this file in accordance with that specific license 
 *
 */
#ifndef OMKChangedControlParameterEventListenerHEADER
#define OMKChangedControlParameterEventListenerHEADER

#include "OMKEventListener.h"
namespace OMK
{
template <typename T>
class OMK_API ChangedControlParameterEventListener : public EventListener
{
public:
   ChangedControlParameterEventListener(SimulatedObject & owner ,
                                          ControlParameter<T> & associatedControlParameter);

   virtual ~ChangedControlParameterEventListener() ;

   virtual void registerEvents() ;

   virtual bool processEvent (Event * event) ;

protected:
   virtual void setControlParameter ( const T & newValue);

   ControlParameter<T> & _associatedControlParameter ;

};



template <typename T>
ChangedControlParameterEventListener<T>::
ChangedControlParameterEventListener(SimulatedObject & owner,
                                       ControlParameter<T> & associatedControlParameter) :
EventListener ( owner ),
   _associatedControlParameter( associatedControlParameter )
{
  _owner.addEventListener( *this ) ;     
}



template <typename T>
ChangedControlParameterEventListener<T>::
~ChangedControlParameterEventListener()
{

}


template <typename T>
void ChangedControlParameterEventListener<T>::registerEvents() 
{
   _owner.registerEventListenerForEvent ( *this, _associatedControlParameter.getAssociatedEventId() ) ;
}


template <typename T>
bool ChangedControlParameterEventListener<T>::processEvent (Event * event) 
{
   ValuedEvent<T > * realEvent = dynamic_cast<ValuedEvent<T > *>(event) ;
   assert ( realEvent != NULL );
   setControlParameter ( realEvent->value ) ;
   return true ;
}


template <typename T>
void ChangedControlParameterEventListener<T>::setControlParameter (const T & value)
{
   _associatedControlParameter.realSet ( value ) ;

}

} // namespace OMK 
#endif

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