vtkOpenGLPropItem.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkOpenGLPropItem.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 vtkOpenGLPropItem_h
#define vtkOpenGLPropItem_h
 
#include "vtkNew.h" // for vtkNew
#include "vtkPropItem.h"
#include "vtkRenderingContextOpenGL2Module.h" // For export macro
 
class vtkCamera;
 
class VTKRENDERINGCONTEXTOPENGL2_EXPORT 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;
};
 
#endif // vtkOpenGLPropItem_h