vtkDICOMFile.h

/*=========================================================================
 
  Program: DICOM for VTK
 
  Copyright (c) 2012-2022 David Gobbi
  All rights reserved.
  See Copyright.txt or http://dgobbi.github.io/bsd3.txt 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 notice for more information.
 
=========================================================================*/
#ifndef vtkDICOMFile_h
#define vtkDICOMFile_h
 
#include "vtkSystemIncludes.h"
#include "vtkDICOMModule.h" // For export macro
#include "vtkDICOMConfig.h" // For configuration details
 
#if defined(_WIN32)
#define VTK_DICOM_WIN32_IO
#else
#define VTK_DICOM_POSIX_IO
#endif
 
 
class VTKDICOM_EXPORT vtkDICOMFile
{
public:
  enum Mode
  {
    In,
    Out
  };
 
  enum Code
  {
    Good,              // no error
    UnknownError,      // unspecified error
    AccessDenied,      // file permission error
    FileIsDirectory,   // can't open file: directory with that name exists
    ImpossiblePath,    // part of the path doesn't exist or goes through a file
    FileNotFound,      // requested file (or directory) doesn't exist
    OutOfSpace         // disk full or quota exceeded
  };
 
  typedef unsigned long long Size;
 
 
  vtkDICOMFile(const char *filename, Mode mode);
 
  ~vtkDICOMFile();
 
  void Close();
 
 
  size_t Read(unsigned char *data, size_t size);
 
 
  size_t Write(const unsigned char *data, size_t size);
 
 
  bool SetPosition(Size offset);
 
  Size GetSize();
 
  bool EndOfFile() { return this->Eof; }
 
  int GetError() { return this->Error; }
 
 
  static int Access(const char *filename, Mode mode);
 
 
  static int Remove(const char *filename);
 
 
  static bool SameFile(const char *file1, const char *file2);
 
  // Copy constructor creates a closed file.  The copy constructor would
  // normally be deleted, but that would cause the VTK python wrappers to
  // skip this class.  Once the wrappers are fixed, this can be deleted.
  vtkDICOMFile(const vtkDICOMFile&) : Handle(0), Error(0), Eof(false) {}
 
private:
  vtkDICOMFile& operator=(const vtkDICOMFile&); // = delete;
 
#ifdef VTK_DICOM_POSIX_IO
  int Handle;
#else
  void *Handle;
#endif
  int Error;
  bool Eof;
};
 
#endif /* vtkDICOMFile_h */
// VTK-HeaderTest-Exclude: vtkDICOMFile.h