itkTernaryFunctorImageFilter.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#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,
                            ThreadIdType 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.hxx"
#endif

#endif