/*=========================================================================
                                                                                
  Program:   bbtk
  Module:    $RCSfile: bbtkBlackBoxInputConnector.cxx,v $
  Language:  C++
  Date:      $Date: 2008/04/18 12:59:15 $
  Version:   $Revision: 1.3 $
                                                                                
  Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  l'Image). All rights reserved. See Doc/License.txt or
  http://www.creatis.insa-lyon.fr/Public/bbtk/License.html for details.
                                                                                
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.
                                                                                
=========================================================================*/

/**
 *  \file 
 *  \brief Class bbtk::BlackBoxInputConnector : 
 */
#include "bbtkBlackBoxInputConnector.h"
#include "bbtkMessageManager.h"
#include "bbtkBlackBox.h"

namespace bbtk
{
  BlackBoxInputConnector::BlackBoxInputConnector(BlackBox::Pointer b)  
    : mBox(b), mConnection(), mStatus(MODIFIED)
  {
    bbtkDebugMessage("Kernel",9,"BlackBoxInputConnector::BlackBoxInputConnector()"<<std::endl);
  }


  BlackBoxInputConnector::~BlackBoxInputConnector() 
  {
    bbtkDebugMessageInc("Kernel",9,"BlackBoxInputConnector::~BlackBoxInputConnector()"<<std::endl);
    bbtkDebugDecTab("Kernel",9);
  }
  
  void BlackBoxInputConnector::SetConnection(Connection::Pointer c) 
  { 
    bbtkDebugMessage("Kernel",9,"BlackBoxInputConnector::SetConnection("<<c<<")"<<std::endl);
    mConnection = c; 
  }
  
  void BlackBoxInputConnector::UnsetConnection(Connection::Pointer c) 
  { 
    bbtkDebugMessage("Kernel",9,"BlackBoxInputConnector::UnsetConnection("
		     <<c<<")"<<std::endl);
    mConnection.reset();
  }
  
  IOStatus BlackBoxInputConnector::BackwardUpdate()
  {
    bbtkDebugMessageInc("Process",4,"BlackBoxInputConnector::BackwardUpdate()"
			<<std::endl);

    if (mConnection.lock()) 
      {
	IOStatus s = mConnection.lock()->BackwardUpdate();
	mStatus = s;
      }
    else 
      {
	mStatus = UPTODATE;
      }

    bbtkDecTab("Process",4);

    return mStatus;

  }


  //    void Modified();
  
}
// namespace bbtk