GUI/Widgets/vtkKWResourceUtilities.h

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

  Module:    $RCSfile: vtkKWResourceUtilities.h,v $

  Copyright (c) Kitware, Inc.
  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 __vtkKWResourceUtilities_h
#define __vtkKWResourceUtilities_h

#include "vtkObject.h"
#include "vtkKWWidgets.h" // Needed for export symbols directives

class vtkKWWidget;
class vtkKWApplication;

class KWWIDGETS_EXPORT vtkKWResourceUtilities : public vtkObject
{
public:
  static vtkKWResourceUtilities* New();
  vtkTypeRevisionMacro(vtkKWResourceUtilities,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);


  static int ReadImage(const char *filename,
                       int *width, int *height, 
                       int *pixel_size,
                       unsigned char **pixels);


  static int ReadPNGImage(const char *filename,
                          int *width, int *height, 
                          int *pixel_size,
                          unsigned char **pixels);


  static int WritePNGImage(const char *filename,
                           int width, int height, 
                           int pixel_size,
                           unsigned char *pixels);


  enum
  {
    ConvertImageToHeaderOptionZlib   = 1,
    ConvertImageToHeaderOptionBase64 = 2,
    ConvertImageToHeaderOptionUpdate = 4
  };
  //ETX
  static int ConvertImageToHeader(
    const char *header_filename,
    const char **filenames,
    int nb_files,
    int options);


  static int DecodeBuffer(
    const unsigned char *input, unsigned long input_length, 
    unsigned char **output, unsigned long output_expected_length);

protected:
  vtkKWResourceUtilities() {};
  ~vtkKWResourceUtilities() {};

private:
  vtkKWResourceUtilities(const vtkKWResourceUtilities&); // Not implemented
  void operator=(const vtkKWResourceUtilities&); // Not implemented
};

#endif

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