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75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkBase64OutputStream.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkBase64OutputStream
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* @brief Writes base64-encoded output to a stream.
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*
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* vtkBase64OutputStream implements base64 encoding with the
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* vtkOutputStream interface.
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*/
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#ifndef vtkBase64OutputStream_h
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#define vtkBase64OutputStream_h
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#include "vtkIOCoreModule.h" // For export macro
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#include "vtkOutputStream.h"
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class VTKIOCORE_EXPORT vtkBase64OutputStream : public vtkOutputStream
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{
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public:
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vtkTypeMacro(vtkBase64OutputStream, vtkOutputStream);
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static vtkBase64OutputStream* New();
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Called after the stream position has been set by the caller, but
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* before any Write calls. The stream position should not be
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* adjusted by the caller until after an EndWriting call.
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*/
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int StartWriting() override;
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/**
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* Write output data of the given length.
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*/
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int Write(void const* data, size_t length) override;
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/**
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* Called after all desired calls to Write have been made. After
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* this call, the caller is free to change the position of the
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* stream. Additional writes should not be done until after another
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* call to StartWriting.
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*/
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int EndWriting() override;
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protected:
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vtkBase64OutputStream();
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~vtkBase64OutputStream() override;
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// Number of un-encoded bytes left in Buffer from last call to Write.
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unsigned int BufferLength;
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unsigned char Buffer[2];
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// Methods to encode and write data.
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int EncodeTriplet(unsigned char c0, unsigned char c1, unsigned char c2);
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int EncodeEnding(unsigned char c0, unsigned char c1);
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int EncodeEnding(unsigned char c0);
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private:
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vtkBase64OutputStream(const vtkBase64OutputStream&) = delete;
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void operator=(const vtkBase64OutputStream&) = delete;
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};
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#endif
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