vtkNetworkImageSource.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkNetworkImageSource_h
#define vtkNetworkImageSource_h

#include "vtkImageAlgorithm.h"
#include "vtkPVVTKExtensionsFiltersRenderingModule.h" //needed for exports

class vtkImageData;
class vtkClientServerStream;

class VTKPVVTKEXTENSIONSFILTERSRENDERING_EXPORT vtkNetworkImageSource : public vtkImageAlgorithm
{
public:
  static vtkNetworkImageSource* New();
  vtkTypeMacro(vtkNetworkImageSource, vtkImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  enum class ModeType : int
  {
    ReadFromFile,
    ReadFromMemory
  };


  vtkSetStringMacro(FileName);
  vtkGetStringMacro(FileName);


  vtkSetStringMacro(TrivialProducerKey);
  vtkGetStringMacro(TrivialProducerKey);


  vtkSetEnumMacro(Mode, ModeType);
  void SetMode(int mode);

  void UpdateImage();

protected:
  vtkNetworkImageSource();
  ~vtkNetworkImageSource() override;

  vtkTimeStamp UpdateImageTime;

  char* FileName;
  char* TrivialProducerKey;
  ModeType Mode;

  vtkImageData* Buffer;
  int ReadImageFromFile(const char* filename);
  int ReadImageFromMemory(const char* trivialProducerKey);
  int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
  int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;

private:
  vtkNetworkImageSource(const vtkNetworkImageSource&) = delete;
  void operator=(const vtkNetworkImageSource&) = delete;
};

#endif