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82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkOutputStream.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 vtkOutputStream
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* @brief Wraps a binary output stream with a VTK interface.
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*
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* vtkOutputStream provides a VTK-style interface wrapping around a
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* standard output stream. The access methods are virtual so that
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* subclasses can transparently provide encoding of the output. Data
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* lengths for Write calls refer to the length of the data in memory.
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* The actual length in the stream may differ for subclasses that
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* implement an encoding scheme.
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*/
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#ifndef vtkOutputStream_h
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#define vtkOutputStream_h
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#include "vtkIOCoreModule.h" // For export macro
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#include "vtkObject.h"
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class VTKIOCORE_EXPORT vtkOutputStream : public vtkObject
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{
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public:
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vtkTypeMacro(vtkOutputStream, vtkObject);
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static vtkOutputStream* New();
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Get/Set the real output stream.
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*/
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vtkSetMacro(Stream, ostream*);
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vtkGetMacro(Stream, ostream*);
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//@}
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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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virtual int StartWriting();
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/**
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* Write output data of the given length.
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*/
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virtual int Write(void const* data, size_t length);
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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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virtual int EndWriting();
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protected:
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vtkOutputStream();
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~vtkOutputStream() override;
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// The real output stream.
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ostream* Stream;
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int WriteStream(const char* data, size_t length);
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private:
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vtkOutputStream(const vtkOutputStream&) = delete;
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void operator=(const vtkOutputStream&) = delete;
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};
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#endif
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