vtkPNGWriter.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkPNGWriter.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.

=========================================================================*/
#ifndef vtkPNGWriter_h
#define vtkPNGWriter_h

#include "vtkIOImageModule.h" // For export macro
#include "vtkImageWriter.h"

class vtkImageData;
class vtkUnsignedCharArray;

class VTKIOIMAGE_EXPORT vtkPNGWriter : public vtkImageWriter
{
public:
  static vtkPNGWriter *New();
  vtkTypeMacro(vtkPNGWriter,vtkImageWriter);
  void PrintSelf(ostream& os, vtkIndent indent);

  virtual void Write();


  vtkSetClampMacro(CompressionLevel, int, 0, 9);
  vtkGetMacro(CompressionLevel, int);


  vtkSetMacro(WriteToMemory, unsigned int);
  vtkGetMacro(WriteToMemory, unsigned int);
  vtkBooleanMacro(WriteToMemory, unsigned int);


  virtual void SetResult(vtkUnsignedCharArray*);
  vtkGetObjectMacro(Result, vtkUnsignedCharArray);

  void AddText(const char* key, const char* value);

  static const char* TITLE;
  static const char* AUTHOR;
  static const char* DESCRIPTION;
  static const char* COPYRIGHT;
  static const char* CREATION_TIME;
  static const char* SOFTWARE;
  static const char* DISCLAIMER;
  static const char* WARNING;
  static const char* SOURCE;
  static const char* COMMENT;

protected:
  vtkPNGWriter();
  ~vtkPNGWriter();

  void WriteSlice(vtkImageData *data, int* uExtent);
  int CompressionLevel;
  unsigned int WriteToMemory;
  vtkUnsignedCharArray *Result;
  FILE *TempFP;
  class vtkInternals;
  vtkInternals* Internals;


private:
  vtkPNGWriter(const vtkPNGWriter&) VTK_DELETE_FUNCTION;
  void operator=(const vtkPNGWriter&) VTK_DELETE_FUNCTION;
};

#endif