itkBinaryFunctorImageFilter.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 __itkBinaryFunctorImageFilter_h
#define __itkBinaryFunctorImageFilter_h

#include "itkInPlaceImageFilter.h"
#include "itkSimpleDataObjectDecorator.h"

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

  itkNewMacro(Self);

  itkTypeMacro(BinaryFunctorImageFilter, InPlaceImageFilter);

  typedef TFunction                              FunctorType;
  typedef TInputImage1                           Input1ImageType;
  typedef typename Input1ImageType::ConstPointer Input1ImagePointer;
  typedef typename Input1ImageType::RegionType   Input1ImageRegionType;
  typedef typename Input1ImageType::PixelType    Input1ImagePixelType;
  typedef SimpleDataObjectDecorator<Input1ImagePixelType>
                                                 DecoratedInput1ImagePixelType;

  typedef TInputImage2                           Input2ImageType;
  typedef typename Input2ImageType::ConstPointer Input2ImagePointer;
  typedef typename Input2ImageType::RegionType   Input2ImageRegionType;
  typedef typename Input2ImageType::PixelType    Input2ImagePixelType;
  typedef SimpleDataObjectDecorator<Input2ImagePixelType>
                                                 DecoratedInput2ImagePixelType;

  typedef TOutputImage                         OutputImageType;
  typedef typename OutputImageType::Pointer    OutputImagePointer;
  typedef typename OutputImageType::RegionType OutputImageRegionType;
  typedef typename OutputImageType::PixelType  OutputImagePixelType;

  virtual void SetInput1(const TInputImage1 *image1);
  virtual void SetInput1(const DecoratedInput1ImagePixelType *input1);
  virtual void SetInput1(const Input1ImagePixelType &input1);

  virtual void SetConstant1(const Input1ImagePixelType &input1);

  virtual const Input1ImagePixelType & GetConstant1() const;

  virtual void SetInput2(const TInputImage2 *image2);
  virtual void SetInput2(const DecoratedInput2ImagePixelType *input2);
  virtual void SetInput2(const Input2ImagePixelType &input2);

  virtual void SetConstant2(const Input2ImagePixelType &input2);
  void SetConstant(Input2ImagePixelType ct)
  {
    this->SetConstant2(ct);
  }
  const Input2ImagePixelType & GetConstant() const
  {
    return this->GetConstant2();
  }

  virtual const Input2ImagePixelType & GetConstant2() const;

  FunctorType & GetFunctor() { return m_Functor; }

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

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

  itkStaticConstMacro(
    InputImage1Dimension, unsigned int, TInputImage1::ImageDimension);
  itkStaticConstMacro(
    InputImage2Dimension, unsigned int, TInputImage2::ImageDimension);
  itkStaticConstMacro(
    OutputImageDimension, unsigned int, TOutputImage::ImageDimension);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro( SameDimensionCheck1,
                   ( Concept::SameDimension< itkGetStaticConstMacro(InputImage1Dimension),
                                             itkGetStaticConstMacro(InputImage2Dimension) > ) );
  itkConceptMacro( SameDimensionCheck2,
                   ( Concept::SameDimension< itkGetStaticConstMacro(InputImage1Dimension),
                                             itkGetStaticConstMacro(OutputImageDimension) > ) );

#endif

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

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

  // needed to take the image information from the 2nd input, if the first one is
  // a simple decorated object
  virtual void GenerateOutputInformation();

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

  FunctorType m_Functor;
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkBinaryFunctorImageFilter.hxx"
#endif

#endif