sitkImageReaderBase.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
*
*         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 sitkImageReaderBase_h
#define sitkImageReaderBase_h
 
#include "sitkProcessObject.h"
#include "sitkPixelIDValues.h"
#include "sitkIO.h"
 
namespace itk {
 
// Forward declaration for pointer
class ImageIOBase;
 
template<class T>
class SmartPointer;
 
  namespace simple {
 
    class SITKIO_EXPORT ImageReaderBase :
      public ProcessObject
    {
    public:
      using Self = ImageReaderBase;
 
      ~ImageReaderBase() override;
 
      ImageReaderBase();
 
 
      SITK_RETURN_SELF_TYPE_HEADER SetOutputPixelType( PixelIDValueEnum pixelID );
      PixelIDValueEnum GetOutputPixelType( ) const;
      /* @} */
 
      virtual Image Execute() = 0;
 
      std::string ToString() const override;
 
      virtual std::vector<std::string> GetRegisteredImageIOs() const;
 
      virtual SITK_RETURN_SELF_TYPE_HEADER  SetLoadPrivateTags(bool loadPrivateTags);
      virtual bool GetLoadPrivateTags() const;
      virtual void LoadPrivateTagsOn();
      virtual void LoadPrivateTagsOff();
      /* @} */
 
 
      virtual SITK_RETURN_SELF_TYPE_HEADER SetImageIO(const std::string &imageio);
      virtual std::string GetImageIO( ) const;
      /* @} */
 
      static std::string GetImageIOFromFileName(const std::string &fileName);
 
    protected:
 
      itk::SmartPointer<ImageIOBase> GetImageIOBase(const std::string &fileName);
 
      void GetPixelIDFromImageIO( const std::string &fileName,
                                  PixelIDValueType &outPixelType,
                                  unsigned int & outDimensions );
      void GetPixelIDFromImageIO( const itk::ImageIOBase* iobase,
                                  PixelIDValueType &outPixelType,
                                  unsigned int & outDimensions );
 
      unsigned int GetDimensionFromImageIO( const std::string &fileName, unsigned int i );
      unsigned int GetDimensionFromImageIO( const itk::ImageIOBase* iobase, unsigned int i );
 
 
    private:
 
      PixelIDValueType ExecuteInternalReadScalar( int componentType );
 
      PixelIDValueType ExecuteInternalReadVector( int componentType );
 
      PixelIDValueType ExecuteInternalReadComplex( int componentType );
 
 
      PixelIDValueEnum m_OutputPixelType;
      bool             m_LoadPrivateTags;
 
      std::string      m_ImageIOName;
 
    };
  }
}
 
 
#endif // sitkImageReaderBase_h