text: #ifndef Scene_facegraph_transform_item_H
  #define Scene_facegraph_transform_item_H
  
  #include "Scene_facegraph_transform_item_config.h"
  #include "Kernel_type.h"
  
  #include <CGAL/Surface_mesh/Surface_mesh_fwd.h>
  #include <CGAL/boost/graph/graph_traits_Surface_mesh.h>
  #include <CGAL/Three/Scene_interface.h>
  #include <CGAL/Three/Scene_item_rendering_helper.h>
  #include <CGAL/Three/Three.h>
  #include <CGAL/Three/Point_container.h>
  
  #include <CGAL/Qt/manipulatedFrame.h>
  #include <CGAL/Qt/qglviewer.h>
  
  #include <QKeyEvent>
  
  
  struct Scene_facegraph_transform_item_priv;
  typedef CGAL::Surface_mesh<Kernel::Point_3> FaceGraph;
  // This class represents a polyhedron in the OpenGL scene
  class SCENE_FACEGRAPH_TRANSFORM_ITEM_EXPORT Scene_facegraph_transform_item
          : public CGAL::Three::Scene_item_rendering_helper {
      Q_OBJECT
  
  public:
      Scene_facegraph_transform_item(const CGAL::qglviewer::Vec& pos, FaceGraph *sm,
                                      const QString name);
      Scene_item* clone() const{return nullptr;}
      QString toolTip() const;
      void drawEdges(CGAL::Three::Viewer_interface*) const;
      void compute_bbox() const;
      ~Scene_facegraph_transform_item();
      bool manipulatable() const;
      ManipulatedFrame* manipulatedFrame();
      void setManipulatable(bool);
      const CGAL::qglviewer::Vec& center() const;
      virtual bool supportsRenderingMode(RenderingMode m) const { return m==Wireframe ; }
      virtual void invalidateOpenGLBuffers();
      virtual bool keyPressEvent(QKeyEvent*);
      void setFMatrix(double matrix[16]);
      bool isEmpty() const {return false;}
      FaceGraph* getFaceGraph();
      void initializeBuffers(CGAL::Three::Viewer_interface *) const;
      void computeElements() const;
  
  protected:
      friend struct Scene_facegraph_transform_item_priv;
      Scene_facegraph_transform_item_priv* d;
  
  Q_SIGNALS:
      void stop();
      void killed();
  }; // end class Scene_facegraph_transform_item
  
  #endif // Scene_facegraph_transform_item_H
  