itkUnaryGeneratorImageFilter.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 itkUnaryGeneratorImageFilter_h
#define itkUnaryGeneratorImageFilter_h

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

#include <functional>

namespace itk
{

template< typename TInputImage, typename TOutputImage >
class UnaryGeneratorImageFilter:
    public InPlaceImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(UnaryGeneratorImageFilter);

  using Self = UnaryGeneratorImageFilter;
  using Superclass = InPlaceImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(UnaryGeneratorImageFilter, InPlaceImageFilter);

  using InputImageType = TInputImage;
  using InputImagePointer = typename InputImageType::ConstPointer;
  using InputImageRegionType = typename InputImageType::RegionType;
  using InputImagePixelType = typename InputImageType::PixelType;

  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename OutputImageType::Pointer;
  using OutputImageRegionType = typename OutputImageType::RegionType;
  using OutputImagePixelType = typename OutputImageType::PixelType;

  using ConstRefFunctionType = OutputImagePixelType (const InputImagePixelType &);
  using ValueFunctionType = OutputImagePixelType (InputImagePixelType);


#if !defined( ITK_WRAPPING_PARSER )

  void SetFunctor( const std::function<ConstRefFunctionType> &f)
  {
    m_DynamicThreadedGenerateDataFunction = [this, f](const OutputImageRegionType & outputRegionForThread)
      { return this->DynamicThreadedGenerateDataWithFunctor(f, outputRegionForThread); };

    this->Modified();
  }
 void SetFunctor( const std::function<ValueFunctionType> &f)
  {
    m_DynamicThreadedGenerateDataFunction = [this, f](const OutputImageRegionType & outputRegionForThread)
      { return this->DynamicThreadedGenerateDataWithFunctor(f, outputRegionForThread); };

    this->Modified();
  }


  void SetFunctor( ConstRefFunctionType *funcPointer)
  {
    m_DynamicThreadedGenerateDataFunction = [this, funcPointer](const OutputImageRegionType & outputRegionForThread)
      { return this->DynamicThreadedGenerateDataWithFunctor(funcPointer, outputRegionForThread); };

    this->Modified();
  }
  void SetFunctor( ValueFunctionType *funcPointer)
  {
    m_DynamicThreadedGenerateDataFunction = [this, funcPointer](const OutputImageRegionType & outputRegionForThread)
      { return this->DynamicThreadedGenerateDataWithFunctor(funcPointer, outputRegionForThread); };

    this->Modified();
  }


  template <typename TFunctor>
  void SetFunctor( const TFunctor & functor)
  {
    m_DynamicThreadedGenerateDataFunction = [this, functor](const OutputImageRegionType & outputRegionForThread)
      { return this->DynamicThreadedGenerateDataWithFunctor(functor, outputRegionForThread); };

    this->Modified();
  }
#endif // !defined( ITK_WRAPPING_PARSER )

protected:
  UnaryGeneratorImageFilter();
  ~UnaryGeneratorImageFilter() override = default;

  void GenerateOutputInformation() override;


  template <typename TFunctor>
  void DynamicThreadedGenerateDataWithFunctor(const TFunctor &, const OutputImageRegionType & outputRegionForThread);
  void DynamicThreadedGenerateData(const OutputImageRegionType & outputRegionForThread) override;

private:
  std::function<void(const OutputImageRegionType &)> m_DynamicThreadedGenerateDataFunction;
};
} // end namespace itk

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

#endif