itkTernaryFunctorImageFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkTernaryFunctorImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2008-10-18 16:11:14 $
  Version:   $Revision: 1.40 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm 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.

=========================================================================*/
#ifndef __itkTernaryFunctorImageFilter_h
#define __itkTernaryFunctorImageFilter_h

#include "itkInPlaceImageFilter.h"
#include "itkImageRegionIteratorWithIndex.h"

namespace itk
{
  
template <class TInputImage1, class TInputImage2, 
          class TInputImage3, class TOutputImage, class TFunction    >
class ITK_EXPORT TernaryFunctorImageFilter :
    public InPlaceImageFilter<TInputImage1,TOutputImage> 
{
public:
  typedef TernaryFunctorImageFilter                       Self;
  typedef InPlaceImageFilter<TInputImage1,TOutputImage>   Superclass;
  typedef SmartPointer<Self>                              Pointer;
  typedef SmartPointer<const Self>                        ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(TernaryFunctorImageFilter, InPlaceImageFilter);

  typedef TFunction                              FunctorType;
  typedef TInputImage1                           Input1ImageType;
  typedef typename Input1ImageType::ConstPointer Input1ImagePointer;
  typedef typename Input1ImageType::RegionType   Input1ImageRegionType; 
  typedef typename Input1ImageType::PixelType    Input1ImagePixelType; 
  typedef TInputImage2                           Input2ImageType;
  typedef typename Input2ImageType::ConstPointer Input2ImagePointer;
  typedef typename Input2ImageType::RegionType   Input2ImageRegionType; 
  typedef typename Input2ImageType::PixelType    Input2ImagePixelType; 
  typedef TInputImage3                           Input3ImageType;
  typedef typename Input3ImageType::ConstPointer Input3ImagePointer;
  typedef typename Input3ImageType::RegionType   Input3ImageRegionType; 
  typedef typename Input3ImageType::PixelType    Input3ImagePixelType; 
  typedef TOutputImage                           OutputImageType;
  typedef typename OutputImageType::Pointer      OutputImagePointer;
  typedef typename OutputImageType::RegionType   OutputImageRegionType;
  typedef typename OutputImageType::PixelType    OutputImagePixelType;

  void SetInput1( const TInputImage1 *image1);

  void SetInput2( const TInputImage2 *image2);

  void SetInput3( const TInputImage3 *image3);

  FunctorType& GetFunctor(void) { return m_Functor; };

  const FunctorType& GetFunctor() const
    {
    return m_Functor;
    }

  void SetFunctor(const FunctorType& functor)
    {
    if (! (functor == m_Functor) )
      {
      m_Functor = functor;
      this->Modified();
      }
    }

  itkStaticConstMacro(Input1ImageDimension, unsigned int,
                      TInputImage1::ImageDimension);
  itkStaticConstMacro(Input2ImageDimension, unsigned int,
                      TInputImage2::ImageDimension);
  itkStaticConstMacro(Input3ImageDimension, unsigned int,
                      TInputImage3::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TOutputImage::ImageDimension);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(SameDimensionCheck1,
    (Concept::SameDimension<Input1ImageDimension, Input2ImageDimension>));
  itkConceptMacro(SameDimensionCheck2,
    (Concept::SameDimension<Input1ImageDimension, Input3ImageDimension>));
  itkConceptMacro(SameDimensionCheck3,
    (Concept::SameDimension<Input1ImageDimension, OutputImageDimension>));

#endif

protected:
  TernaryFunctorImageFilter();
  virtual ~TernaryFunctorImageFilter() {};

  void BeforeThreadedGenerateData();

  void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
                            int threadId );

private:
  TernaryFunctorImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  FunctorType m_Functor;
};

} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkTernaryFunctorImageFilter.txx"
#endif

#endif

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