// Created on: 1996-12-05
// Created by: Jean-Pierre COMBE/Odile Olivier
// Copyright (c) 1996-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef _PrsDim_PerpendicularRelation_HeaderFile
#define _PrsDim_PerpendicularRelation_HeaderFile

#include <PrsDim_Relation.hxx>

DEFINE_STANDARD_HANDLE(PrsDim_PerpendicularRelation, PrsDim_Relation)

//! A framework to display constraints of perpendicularity
//! between two or more interactive datums. These
//! datums can be edges or faces.
class PrsDim_PerpendicularRelation : public PrsDim_Relation
{
  DEFINE_STANDARD_RTTIEXT(PrsDim_PerpendicularRelation, PrsDim_Relation)
public:

  //! Constructs an object to display constraints of
  //! perpendicularity on shapes.
  //! This object is defined by a first shape aFShape, a
  //! second shape aSShape, and a plane aPlane.
  //! aPlane is the plane of reference to show and test the
  //! perpendicular relation between two shapes, at least
  //! one of which has a revolved surface.
  Standard_EXPORT PrsDim_PerpendicularRelation(const TopoDS_Shape& aFShape, const TopoDS_Shape& aSShape, const Handle(Geom_Plane)& aPlane);
  
  //! Constructs an object to display constraints of
  //! perpendicularity on shapes.
  //! This object is defined by a first shape aFShape and a
  //! second shape aSShape.
  Standard_EXPORT PrsDim_PerpendicularRelation(const TopoDS_Shape& aFShape, const TopoDS_Shape& aSShape);

private:

  Standard_EXPORT virtual void Compute (const Handle(PrsMgr_PresentationManager)& thePrsMgr,
                                        const Handle(Prs3d_Presentation)& thePrs,
                                        const Standard_Integer theMode) Standard_OVERRIDE;

  Standard_EXPORT virtual void ComputeSelection (const Handle(SelectMgr_Selection)& theSel,
                                                 const Standard_Integer theMode) Standard_OVERRIDE;

  Standard_EXPORT void ComputeTwoFacesPerpendicular (const Handle(Prs3d_Presentation)& aPresentation);

  Standard_EXPORT void ComputeTwoEdgesPerpendicular (const Handle(Prs3d_Presentation)& aPresentation);

private:

  gp_Pnt myFAttach;
  gp_Pnt mySAttach;

};

#endif // _PrsDim_PerpendicularRelation_HeaderFile
