/*=========================================================================                                                                               
  Program:   bbtk
  Module:    $RCSfile: bbvtkSegmentationConnectivity.cxx,v $
  Language:  C++
  Date:      $Date: 2009/05/15 14:58:01 $
  Version:   $Revision: 1.5 $
=========================================================================*/

/* ---------------------------------------------------------------------

* Copyright (c) CREATIS-LRMN (Centre de Recherche en Imagerie Medicale)
* Authors : Eduardo Davila, Laurent Guigues, Jean-Pierre Roux
*
*  This software is governed by the CeCILL-B license under French law and 
*  abiding by the rules of distribution of free software. You can  use, 
*  modify and/ or redistribute the software under the terms of the CeCILL-B 
*  license as circulated by CEA, CNRS and INRIA at the following URL 
*  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
*  or in the file LICENSE.txt.
*
*  As a counterpart to the access to the source code and  rights to copy,
*  modify and redistribute granted by the license, users are provided only
*  with a limited warranty  and the software's author,  the holder of the
*  economic rights,  and the successive licensors  have only  limited
*  liability. 
*
*  The fact that you are presently reading this means that you have had
*  knowledge of the CeCILL-B license and that you accept its terms.
* ------------------------------------------------------------------------ */                                                                         

/**
 *  \file 
 *  \brief 
 */


#ifdef _USE_VTK_


#include "bbvtkSegmentationConnectivity.h"
#include "bbvtkPackage.h"

namespace bbvtk
{

  BBTK_ADD_BLACK_BOX_TO_PACKAGE(vtk,SegmentationConnectivity);
  BBTK_BLACK_BOX_IMPLEMENTATION(SegmentationConnectivity,
				bbtk::AtomicBlackBox);
  
  
	// --------------------------------------------------------------	
  void SegmentationConnectivity::bbUserSetDefaultValues() 
  { 
	  thresh2	= NULL;
	  cast2		= NULL;
	  connect2	= NULL;
	  cast4		= NULL;
		
	  bbSetInputIn(NULL);
	  std::vector<int> position;
	  position.push_back(0);
	  position.push_back(0);
	  position.push_back(0);
	  bbSetInputPositionXYZ(position);
	  std::vector<int> threshold;
	  threshold.push_back(0);
	  threshold.push_back(0);
	  bbSetInputThresholdMinMax(threshold);
	  bbSetOutputOut(NULL);
  }

	// --------------------------------------------------------------	
	void SegmentationConnectivity::bbUserInitializeProcessing()
	{
		thresh2 = vtkImageThreshold::New();
			thresh2->SetInValue(255);
			thresh2->SetOutputScalarTypeToUnsignedShort();
			thresh2->SetOutValue(0);
		cast2 = vtkImageCast::New();
			cast2->SetInput(thresh2->GetOutput());
			cast2->SetOutputScalarTypeToUnsignedChar();
		connect2 = vtkImageSeedConnectivity::New();
			connect2->SetInput(cast2->GetOutput());
			connect2->SetInputConnectValue(255);
			connect2->SetOutputConnectedValue(255);
			connect2->SetOutputUnconnectedValue(0);
		cast4 = vtkImageCast::New();
			cast4->SetInput(connect2->GetOutput());
			cast4->SetOutputScalarTypeToUnsignedShort();
	}
	
	// --------------------------------------------------------------	
  void SegmentationConnectivity::bbUserFinalizeProcessing() 
  { 
	  if (thresh2!=NULL)
	  {
		  thresh2->Delete();
		  thresh2=NULL;
	  }
	  if (cast2!=NULL)
	  {
		  cast2->Delete();
		  cast2=NULL;
	  }
	  if (connect2!=NULL)
	  {
		  connect2->Delete();
		  connect2=NULL;
	  }
	  if (cast4!=NULL)
	  {
		  cast4->Delete();
		  cast4=NULL;
	  }
	  
  }

	// --------------------------------------------------------------	
  void SegmentationConnectivity::DoProcess()
  {
    vtkImageData *imagedata = bbGetInputIn();
    imagedata->UpdateInformation();
    imagedata->SetUpdateExtent(imagedata->GetWholeExtent());
    imagedata->Update();
    thresh2->ThresholdBetween(3000, 3001);
    thresh2->SetInput(imagedata);
    thresh2->ThresholdBetween(bbGetInputThresholdMinMax()[0], bbGetInputThresholdMinMax()[1]);
    thresh2->Update();
    cast2->Update();
    connect2->RemoveAllSeeds ();
    connect2->AddSeed( bbGetInputPositionXYZ()[0] , bbGetInputPositionXYZ()[1] , bbGetInputPositionXYZ()[2] );
    connect2->Update();
    cast4->Update();
    
    bbSetOutputOut(cast4->GetOutput() );	  
  }
  

}// EO namespace bbvtk


#endif //_USE_VTK_