itkIPLCommonImageIO.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkIPLCommonImageIO.h,v $
  Language:  C++
  Date:      $Date: 2007-12-15 13:55:14 $
  Version:   $Revision: 1.22 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/

#ifndef __itkIPLCommonImageIO_h
#define __itkIPLCommonImageIO_h

#include "itkImageIOBase.h"
#include "itkIPLFileNameList.h"
#include "itkGEImageHeader.h"

namespace itk
{
class ITK_EXPORT IPLCommonImageIO : public ImageIOBase
{
public:
  typedef IPLCommonImageIO    Self;
  typedef ImageIOBase         Superclass;
  typedef SmartPointer<Self>  Pointer;

  typedef unsigned char  U8;
  typedef signed char    S8;
  typedef unsigned short U16;
  typedef signed short   S16;
  typedef unsigned int   U32;
  typedef signed int     S32;
  typedef unsigned long  U64;
  typedef signed long    S64;
  typedef float          F32;
  typedef double         F64;

  itkNewMacro(Self);

  itkTypeMacro(IPLCommonImageIO, Superclass);

  /*-------- This part of the interfaces deals with reading data. ----- */
  
  virtual bool CanReadFile(const char* FileNameToRead);

  virtual void ReadImageInformation();

  virtual void ModifyImageInformation() {};

  virtual const std::type_info& GetPixelTypeInfo() const;

  virtual const std::type_info& GetComponentTypeInfo() const;

  virtual void Read(void* buffer);

  virtual unsigned int GetComponentSize() const;

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

  virtual bool CanWriteFile(const char * FileNameToWrite);

  virtual void WriteImageInformation();

  virtual void Write(const void* buffer);

  virtual void SortImageListByNameAscend();

  virtual void SortImageListByNameDescend();


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

  int AddElementToList(char const * const filename,
                       const float sliceLocation,
                       const int offset,
                       const int XDim,
                       const int YDim,
                       const int Key1,
                       const int Key2 );
  void sortImageListAscend ();
  void sortImageListDescend ();
  int statTimeToAscii (void *clock, char *timeString);
  virtual GEImageHeader *ReadHeader(const char *FileNameToRead);
  //
  // data members
  GEImageHeader         *m_ImageHeader;
  ImageIOBase::ByteOrder m_SystemByteOrder;
  IPLFileNameList       *m_FilenameList;
  //
  // return 0 on success, -1 on failure
  int GetStringAt(std::ifstream &f,std::streamoff Offset,char *buf,
                  size_t amount, bool throw_exception = true);
  int GetIntAt(std::ifstream &f,std::streamoff Offset,int *ip,
               bool throw_exception = true);
  int GetShortAt(std::ifstream &f,std::streamoff Offset,short *ip,
                 bool throw_exception = true);
  int GetFloatAt(std::ifstream &f,std::streamoff Offset,float *ip,
                 bool throw_exception = true);
  int GetDoubleAt(std::ifstream &f,std::streamoff Offset,double *ip,
                  bool throw_exception = true);

  short hdr2Short(char *hdr);
  int hdr2Int(char *hdr);
  float hdr2Float(char *hdr);
  double hdr2Double(char *hdr);
private:
  IPLCommonImageIO(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
};

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

#define IOCHECK() \
      if(f.fail()) \
      { \
  if(f.is_open()) \
    f.close(); \
  RAISE_EXCEPTION(); \
      }


#endif // __itkAnalyzeImageIO_h

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