itkTestingExtractSliceImageFilter.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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
 *
 *         https://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 itkTestingExtractSliceImageFilter_h
#define itkTestingExtractSliceImageFilter_h
 
#include "itkSmartPointer.h"
#include "itkImageSource.h"
#include "itkExtractImageFilterRegionCopier.h"
 
namespace itk
{
namespace Testing
{
class ExtractSliceImageFilterEnums
{
public:
  enum class TestExtractSliceImageFilterCollapseStrategy : uint8_t
  {
    DIRECTIONCOLLAPSETOUNKOWN = 0,
    DIRECTIONCOLLAPSETOIDENTITY = 1,
    DIRECTIONCOLLAPSETOSUBMATRIX = 2,
    DIRECTIONCOLLAPSETOGUESS = 3
  };
};
// Define how to print enumeration
extern std::ostream &
operator<<(std::ostream & out, const ExtractSliceImageFilterEnums::TestExtractSliceImageFilterCollapseStrategy value);

 
template <typename TInputImage, typename TOutputImage>
class ITK_TEMPLATE_EXPORT ExtractSliceImageFilter : public ImageSource<TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(ExtractSliceImageFilter);

  using Self = ExtractSliceImageFilter;
  using Superclass = ImageSource<TOutputImage>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(ExtractSliceImageFilter);

  using InputImageType = TInputImage;
  using OutputImageType = TOutputImage;

  using OutputImageRegionType = typename TOutputImage::RegionType;
  using InputImageRegionType = typename TInputImage::RegionType;

  using OutputImagePixelType = typename TOutputImage::PixelType;
  using InputImagePixelType = typename TInputImage::PixelType;

  using OutputImageIndexType = typename TOutputImage::IndexType;
  using InputImageIndexType = typename TInputImage::IndexType;
  using OutputImageSizeType = typename TOutputImage::SizeType;
  using InputImageSizeType = typename TInputImage::SizeType;

  using TestExtractSliceImageFilterCollapseStrategyEnum =
    ExtractSliceImageFilterEnums::TestExtractSliceImageFilterCollapseStrategy;
  using DIRECTIONCOLLAPSESTRATEGY = TestExtractSliceImageFilterCollapseStrategyEnum;
  using DirectionCollaspeStrategyEnum = TestExtractSliceImageFilterCollapseStrategyEnum;
#if !defined(ITK_LEGACY_REMOVE)
  // We need to expose the enum values at the class level
  // for backwards compatibility
  static constexpr DIRECTIONCOLLAPSESTRATEGY DIRECTIONCOLLAPSETOUNKOWN =
    DIRECTIONCOLLAPSESTRATEGY::DIRECTIONCOLLAPSETOUNKOWN;
  static constexpr DIRECTIONCOLLAPSESTRATEGY DIRECTIONCOLLAPSETOIDENTITY =
    DIRECTIONCOLLAPSESTRATEGY::DIRECTIONCOLLAPSETOIDENTITY;
  static constexpr DIRECTIONCOLLAPSESTRATEGY DIRECTIONCOLLAPSETOSUBMATRIX =
    DIRECTIONCOLLAPSESTRATEGY::DIRECTIONCOLLAPSETOSUBMATRIX;
  static constexpr DIRECTIONCOLLAPSESTRATEGY DIRECTIONCOLLAPSETOGUESS =
    DIRECTIONCOLLAPSESTRATEGY::DIRECTIONCOLLAPSETOGUESS;
#endif

  void
  SetDirectionCollapseToStrategy(const DIRECTIONCOLLAPSESTRATEGY choosenStrategy)
  {
    switch (choosenStrategy)
    {
      case TestExtractSliceImageFilterCollapseStrategyEnum::DIRECTIONCOLLAPSETOGUESS:
      case TestExtractSliceImageFilterCollapseStrategyEnum::DIRECTIONCOLLAPSETOIDENTITY:
      case TestExtractSliceImageFilterCollapseStrategyEnum::DIRECTIONCOLLAPSETOSUBMATRIX:
        break;
      case TestExtractSliceImageFilterCollapseStrategyEnum::DIRECTIONCOLLAPSETOUNKOWN:
      default:
        itkExceptionMacro("Invalid Strategy Chosen for itk::ExtractSliceImageFilter");
    }
 
    this->m_DirectionCollaspeStrategy = choosenStrategy;
    this->Modified();
  }


  DIRECTIONCOLLAPSESTRATEGY
  GetDirectionCollapseToStrategy() const { return this->m_DirectionCollaspeStrategy; }

  void
  SetDirectionCollapseToGuess()
  {
    this->SetDirectionCollapseToStrategy(TestExtractSliceImageFilterCollapseStrategyEnum::DIRECTIONCOLLAPSETOGUESS);
  }

  void
  SetDirectionCollapseToIdentity()
  {
    this->SetDirectionCollapseToStrategy(TestExtractSliceImageFilterCollapseStrategyEnum::DIRECTIONCOLLAPSETOIDENTITY);
  }

  void
  SetDirectionCollapseToSubmatrix()
  {
    this->SetDirectionCollapseToStrategy(TestExtractSliceImageFilterCollapseStrategyEnum::DIRECTIONCOLLAPSETOSUBMATRIX);
  }
 

  static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;
  static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;
 
  using ExtractSliceImageFilterRegionCopierType =
    ImageToImageFilterDetail::ExtractImageFilterRegionCopier<Self::InputImageDimension, Self::OutputImageDimension>;

  void
  SetExtractionRegion(InputImageRegionType extractRegion);
  itkGetConstMacro(ExtractionRegion, InputImageRegionType);

  using Superclass::SetInput;
  virtual void
  SetInput(const TInputImage * input);
  const TInputImage *
  GetInput() const;
 
  itkConceptMacro(InputCovertibleToOutputCheck, (Concept::Convertible<InputImagePixelType, OutputImagePixelType>));
 
protected:
  ExtractSliceImageFilter();
  ~ExtractSliceImageFilter() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;

  void
  GenerateOutputInformation() override;

  virtual void
  CallCopyOutputRegionToInputRegion(InputImageRegionType & destRegion, const OutputImageRegionType & srcRegion);

  void
  DynamicThreadedGenerateData(const OutputImageRegionType & outputRegionForThread) override;
 
  InputImageRegionType m_ExtractionRegion{};
 
  OutputImageRegionType m_OutputImageRegion{};
 
private:
  DIRECTIONCOLLAPSESTRATEGY m_DirectionCollaspeStrategy{
    TestExtractSliceImageFilterCollapseStrategyEnum::DIRECTIONCOLLAPSETOUNKOWN
  };
};
} // end namespace Testing
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkTestingExtractSliceImageFilter.hxx"
#endif
 
#endif