itkFDFImageIO.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 itkFDFImageIO_h
#define itkFDFImageIO_h
#include "IOFDFExport.h"
#include "itkImageIOBase.h"

namespace itk
{

class IOFDF_EXPORT FDFImageIO : public ImageIOBase
{
public:
  typedef FDFImageIO          Self;
  typedef ImageIOBase         Superclass;
  typedef SmartPointer<Self>  Pointer;

  itkNewMacro(Self);

  itkTypeMacro(FDFImageIO, ImageIOBase);

  virtual bool SupportsDimension( unsigned long dim ) ITK_OVERRIDE
    {
    if( dim == 2 || dim == 3 )
      {
      return true;
      }
    else
      {
      return false;
      }
    }


  /*-------- This part of the interface deals with reading data. ------ */

  virtual bool CanReadFile(const char*) ITK_OVERRIDE;

  virtual void ReadImageInformation() ITK_OVERRIDE;

//   virtual const std::type_info& GetPixelType() const;

  virtual void Read(void* buffer) ITK_OVERRIDE;

  virtual void ReadVolume(void* buffer);

//   virtual unsigned int GetComponentSize() const;

  /*-------- This part of the interfaces deals with writing data. ----- */

  virtual bool CanWriteFile(const char*) ITK_OVERRIDE;

  virtual void WriteImageInformation() ITK_OVERRIDE;

  virtual void Write(const void* buffer) ITK_OVERRIDE;

protected:
  FDFImageIO();
  ~FDFImageIO();
  void PrintSelf(std::ostream& os, Indent indent) const ITK_OVERRIDE;

  void WriteSlice(std::string& fileName, const void* buffer);

  int ReadHeader(const char *FileNameToRead);

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

  void SwapBytesIfNecessary(void* buffer, unsigned long numberOfPixels);

  // Position after ReadImageInformation.
  size_t m_InputPosition;

  std::string          m_SpatialRank;
  std::string          m_Checksum;
  std::string          m_Bits;
  std::vector<int>     m_Size;
  std::vector<float>   m_Location;
  std::vector<float>   m_Span;
  std::vector<float>   m_Roi;
};

} // end namespace itk


#define RAISE_EXCEPTION() \
        { ExceptionObject exception(__FILE__, __LINE__); \
        exception.SetDescription("File cannot be read"); \
        throw exception; }

#endif