// Created on: 2021-04-19
// Created by: Maria KRYLOVA
// Copyright (c) 2021 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.

#include <Select3D_SensitiveCylinder.hxx>

IMPLEMENT_STANDARD_RTTIEXT(Select3D_SensitiveCylinder, Select3D_SensitiveEntity)

//==================================================
// Function: Select3D_SensitiveSphere
// Purpose :
//==================================================
Select3D_SensitiveCylinder::Select3D_SensitiveCylinder (const Handle(SelectMgr_EntityOwner)& theOwnerId,
                                                        const Standard_Real theBottomRad,
                                                        const Standard_Real theTopRad,
                                                        const Standard_Real    theHeight,
                                                        const gp_Trsf& theTrsf)
: Select3D_SensitiveEntity (theOwnerId),
  myTrsf (theTrsf),
  myBottomRadius (theBottomRad),
  myTopRadius (theTopRad),
  myHeight (theHeight)
{
}

//==================================================
// Function: Matches
// Purpose :
//==================================================
Standard_Boolean Select3D_SensitiveCylinder::Matches (SelectBasics_SelectingVolumeManager& theMgr,
                                                      SelectBasics_PickResult& thePickResult)
{
  if (theMgr.GetActiveSelectionType() != SelectMgr_SelectionType_Point)
  {
    if (!theMgr.IsOverlapAllowed())
    {
      bool isInside = true;
      return theMgr.OverlapsCylinder (myBottomRadius, myTopRadius, myHeight, myTrsf, &isInside) && isInside;
    }
    else
    {
      return theMgr.OverlapsCylinder (myBottomRadius, myTopRadius, myHeight, myTrsf, NULL);
    }
  }
  if (!theMgr.OverlapsCylinder (myBottomRadius, myTopRadius, myHeight, myTrsf, thePickResult))
  {
    return false;
  }

  thePickResult.SetDistToGeomCenter (theMgr.DistToGeometryCenter (CenterOfGeometry()));
  return true;
}

//==================================================
// Function: GetConnected
// Purpose :
//==================================================
Handle(Select3D_SensitiveEntity) Select3D_SensitiveCylinder::GetConnected()
{
  Handle(Select3D_SensitiveEntity) aNewEntity = new Select3D_SensitiveCylinder (myOwnerId, myBottomRadius,
                                                                                myTopRadius, myHeight,
                                                                                myTrsf);
  return aNewEntity;
}

//==================================================
// Function: BoundingBox
// Purpose :
//==================================================
Select3D_BndBox3d Select3D_SensitiveCylinder::BoundingBox()
{
  Standard_Real aMaxRad = Max (myBottomRadius, myTopRadius);
  gp_Pnt aCenterBottom (0, 0, 0);
  gp_Pnt aCenterTop (0, 0, myHeight);
  aCenterBottom.Transform (myTrsf);
  aCenterTop.Transform (myTrsf);
  const SelectMgr_Vec3 aMinPnt (Min (aCenterBottom.X(), aCenterTop.X()) - aMaxRad,
                                Min (aCenterBottom.Y(), aCenterTop.Y()) - aMaxRad,
                                Min (aCenterBottom.Z(), aCenterTop.Z()) - aMaxRad);
  const SelectMgr_Vec3 aMaxPnt (Max (aCenterBottom.X(), aCenterTop.X()) + aMaxRad,
                                Max (aCenterBottom.Y(), aCenterTop.Y()) + aMaxRad,
                                Max (aCenterBottom.Z(), aCenterTop.Z()) + aMaxRad);
  return Select3D_BndBox3d (aMinPnt, aMaxPnt);
}

//==================================================
// Function: CenterOfGeometry
// Purpose :
//==================================================
gp_Pnt Select3D_SensitiveCylinder::CenterOfGeometry() const
{
  return gp_Pnt (0, 0, myHeight / 2).Transformed (myTrsf);
}