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IO/vtkBase64Utilities.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkBase64Utilities.h,v $
00005   Language:  C++
00006 
00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
00008   All rights reserved.
00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00010 
00011      This software is distributed WITHOUT ANY WARRANTY; without even 
00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00013      PURPOSE.  See the above copyright notice for more information.
00014 
00015 =========================================================================*/
00035 #ifndef __vtkBase64Utilities_h
00036 #define __vtkBase64Utilities_h
00037 
00038 #include "vtkObject.h"
00039 
00040 class VTK_IO_EXPORT vtkBase64Utilities : public vtkObject
00041 {
00042 public:
00043   static vtkBase64Utilities *New();
00044   vtkTypeRevisionMacro(vtkBase64Utilities,vtkObject);
00045 
00047 
00048   static void EncodeTriplet(unsigned char i0,
00049                             unsigned char i1,
00050                             unsigned char i2,
00051                             unsigned char *o0,
00052                             unsigned char *o1,
00053                             unsigned char *o2,
00054                             unsigned char *o3);
00056 
00058 
00059   static void EncodePair(unsigned char i0,
00060                          unsigned char i1,
00061                          unsigned char *o0,
00062                          unsigned char *o1,
00063                          unsigned char *o2,
00064                          unsigned char *o3);
00066 
00068 
00069   static void EncodeSingle(unsigned char i0,
00070                            unsigned char *o0,
00071                            unsigned char *o1,
00072                            unsigned char *o2,
00073                            unsigned char *o3);
00075 
00077 
00087   static unsigned long Encode(const unsigned char *input, 
00088                               unsigned long length, 
00089                               unsigned char *output,
00090                               int mark_end = 0);
00092 
00093 
00095 
00096   static int DecodeTriplet(unsigned char i0,
00097                            unsigned char i1,
00098                            unsigned char i2,
00099                            unsigned char i3,
00100                            unsigned char *o0,
00101                            unsigned char *o1,
00102                            unsigned char *o2);
00104 
00106 
00115   static unsigned long Decode(const unsigned char *input, 
00116                               unsigned long length, 
00117                               unsigned char *output,
00118                               unsigned long max_input_length = 0);
00120 
00121 protected:
00122   vtkBase64Utilities() {};
00123   ~vtkBase64Utilities() {};  
00124   
00125 private:
00126   vtkBase64Utilities(const vtkBase64Utilities&);  // Not implemented.
00127   void operator=(const vtkBase64Utilities&);  // Not implemented.
00128 };
00129 
00130 #endif