itkMINCImageIO.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 itkMINCImageIO_h
#define itkMINCImageIO_h
 
#include "itkImageIOBase.h"
 
#include "itkMatrix.h"
 
#include "ITKIOMINCExport.h"
#include <memory> // For unique_ptr.
 
namespace itk
{
 
// Structure for "Pointer to Implementation" or "Private
// Implementation" to hide MINC data from the ITK interface.
struct ITKIOMINC_HIDDEN MINCImageIOPImpl;

class ITKIOMINC_EXPORT MINCImageIO : public ImageIOBase
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(MINCImageIO);

  using Self = MINCImageIO;
  using Superclass = ImageIOBase;
  using Pointer = SmartPointer<Self>;
  using MatrixType = Matrix<float, 3, 3>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(MINCImageIO);

  bool
  SupportsDimension(unsigned long dim) override
  {
    return dim < 4;
  }
 
  /*-------- This part of the interface deals with reading data. ------ */

  bool
  CanReadFile(const char *) override;

  void
  ReadImageInformation() override;

  void
  Read(void * buffer) override;
 
  /*-------- This part of the interfaces deals with writing data. ----- */

  bool
  CanWriteFile(const char *) override;

  void
  WriteImageInformation() override;

  void
  Write(const void * buffer) override;
 
protected:
  MINCImageIO();
  ~MINCImageIO() override;
 
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
  void
  WriteSlice(std::string & fileName, const void * buffer);

  void
  AllocateDimensions(int nDims);

  void
  CleanupDimensions();

  void
  CloseVolume();
 
private:
  const std::unique_ptr<MINCImageIOPImpl> m_MINCPImpl;
 
  MatrixType m_DirectionCosines{};
 
  // complex type images, composed of complex numbers
  // int m_Complex;
};
} // end namespace itk
 
#endif // itkMINCImageIO_h