vtkOpenGLPropItem.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause

#ifndef vtkOpenGLPropItem_h
#define vtkOpenGLPropItem_h

#include "vtkNew.h" // for vtkNew
#include "vtkPropItem.h"
#include "vtkRenderingContextOpenGL2Module.h" // For export macro
#include "vtkWrappingHints.h"                 // For VTK_MARSHALAUTO

VTK_ABI_NAMESPACE_BEGIN
class vtkCamera;

class VTKRENDERINGCONTEXTOPENGL2_EXPORT VTK_MARSHALAUTO vtkOpenGLPropItem : public vtkPropItem
{
public:
  static vtkOpenGLPropItem* New();
  vtkTypeMacro(vtkOpenGLPropItem, vtkPropItem);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  bool Paint(vtkContext2D* painter) override;

protected:
  vtkOpenGLPropItem();
  ~vtkOpenGLPropItem() override;

  // Sync the active vtkCamera with the GL state set by the painter.
  void UpdateTransforms() override;

  // Restore the vtkCamera state.
  void ResetTransforms() override;

private:
  vtkNew<vtkCamera> CameraCache;
  vtkContext2D* Painter;

  vtkOpenGLPropItem(const vtkOpenGLPropItem&) = delete;
  void operator=(const vtkOpenGLPropItem&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif // vtkOpenGLPropItem_h