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/*=========================================================================
Program: Visualization Toolkit
Module: vtkBase64OutputStream.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/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 notice for more information.
=========================================================================*/
/**
* @class vtkBase64OutputStream
* @brief Writes base64-encoded output to a stream.
*
* vtkBase64OutputStream implements base64 encoding with the
* vtkOutputStream interface.
*/
#ifndef vtkBase64OutputStream_h
#define vtkBase64OutputStream_h
#include "vtkIOCoreModule.h" // For export macro
#include "vtkOutputStream.h"
class VTKIOCORE_EXPORT vtkBase64OutputStream : public vtkOutputStream
{
public:
vtkTypeMacro(vtkBase64OutputStream,vtkOutputStream);
static vtkBase64OutputStream *New();
void PrintSelf(ostream& os, vtkIndent indent);
/**
* Called after the stream position has been set by the caller, but
* before any Write calls. The stream position should not be
* adjusted by the caller until after an EndWriting call.
*/
int StartWriting();
/**
* Write output data of the given length.
*/
int Write(void const* data, size_t length);
/**
* Called after all desired calls to Write have been made. After
* this call, the caller is free to change the position of the
* stream. Additional writes should not be done until after another
* call to StartWriting.
*/
int EndWriting();
protected:
vtkBase64OutputStream();
~vtkBase64OutputStream();
// Number of un-encoded bytes left in Buffer from last call to Write.
unsigned int BufferLength;
unsigned char Buffer[2];
// Methods to encode and write data.
int EncodeTriplet(unsigned char c0, unsigned char c1, unsigned char c2);
int EncodeEnding(unsigned char c0, unsigned char c1);
int EncodeEnding(unsigned char c0);
private:
vtkBase64OutputStream(const vtkBase64OutputStream&) VTK_DELETE_FUNCTION;
void operator=(const vtkBase64OutputStream&) VTK_DELETE_FUNCTION;
};
#endif
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