vtkSMSaveScreenshotProxy.h

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

  Program:   ParaView
  Module:    vtkSMSaveScreenshotProxy.h

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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 vtkSMSaveScreenshotProxy_h
#define vtkSMSaveScreenshotProxy_h

#include "vtkRemotingViewsModule.h" // needed for exports
#include "vtkSMProxy.h"
#include "vtkSmartPointer.h" // needed for vtkSmartPointer.
#include "vtkVector.h"       // needed for vtkVector2i.

class vtkImageData;
class vtkSMViewLayoutProxy;
class vtkSMViewProxy;

class VTKREMOTINGVIEWS_EXPORT vtkSMSaveScreenshotProxy : public vtkSMProxy
{
public:
  static vtkSMSaveScreenshotProxy* New();
  vtkTypeMacro(vtkSMSaveScreenshotProxy, vtkSMProxy);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  bool WriteImage(const char* filename);

  bool WriteImage(const char* filename, vtkTypeUInt32 location);

  vtkSmartPointer<vtkImageData> CaptureImage();

  virtual void UpdateDefaultsAndVisibilities(const char* filename);

  static vtkSmartPointer<vtkImageData> CaptureImage(vtkSMViewProxy* view, const vtkVector2i& size);

  static vtkSmartPointer<vtkImageData> CaptureImage(
    vtkSMViewLayoutProxy* view, const vtkVector2i& size);

  static vtkVector2i GetScaleFactorsAndSize(
    const vtkVector2i& targetSize, vtkVector2i& size, bool* approximate = nullptr);

  static int ComputeMagnification(const vtkVector2i& targetSize, vtkVector2i& size);


  std::string GetFileFormatFilters();

protected:
  vtkSMSaveScreenshotProxy();
  ~vtkSMSaveScreenshotProxy() override;

  std::pair<vtkSmartPointer<vtkImageData>, vtkSmartPointer<vtkImageData> > CapturePreppedImages();

  virtual bool Prepare();

  virtual bool Cleanup();

  vtkSMViewLayoutProxy* GetLayout();
  vtkSMViewProxy* GetView();

  vtkSMProxy* GetFormatProxy(const std::string& filename);

  std::string GetStereoFileName(const std::string& filename, bool left);

  friend class pqCatalystExportReaction;  // access to GetView,FormatProxy
  friend class pqImmediateExportReaction; // access to GetView,FormatProxy
  friend class pqTemporalExportReaction;  // access to GetView,FormatProxy
private:
  vtkSMSaveScreenshotProxy(const vtkSMSaveScreenshotProxy&) = delete;
  void operator=(const vtkSMSaveScreenshotProxy&) = delete;

  class vtkState;
  class vtkStateView;
  class vtkStateLayout;
  vtkState* State;
};

#endif