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//
// G4ScaledSolid
//
// Class description:
//
// A scaled solid is a solid that has been scaled in dimensions
// in X, Y or Z, from its original description.

// 27.10.15 G.Cosmo: created
// --------------------------------------------------------------------
#ifndef G4SCALEDSOLID_HH
#define G4SCALEDSOLID_HH

#include "G4VSolid.hh"
#include "G4ThreeVector.hh"
#include "G4Transform3D.hh"
#include "G4AffineTransform.hh"

class G4ScaleTransform;

class G4ScaledSolid : public G4VSolid
{
  public:

    G4ScaledSolid( const G4String& pName,
                         G4VSolid* pSolid ,
                   const G4Scale3D& pScale  );

    ~G4ScaledSolid() override;

    EInside Inside( const G4ThreeVector& p ) const override;

    void BoundingLimits(G4ThreeVector& pMin, G4ThreeVector& pMax) const override;

    G4bool CalculateExtent(const EAxis pAxis,
                           const G4VoxelLimits& pVoxelLimit,
                           const G4AffineTransform& pTransform,
                                 G4double& pMin, G4double& pMax) const override;

    G4ThreeVector SurfaceNormal( const G4ThreeVector& p ) const override;

    G4double DistanceToIn( const G4ThreeVector& p,
                           const G4ThreeVector& v  ) const override;

    G4double DistanceToIn( const G4ThreeVector& p) const override;

    G4double DistanceToOut( const G4ThreeVector& p,
                            const G4ThreeVector& v,
                            const G4bool calcNorm = false,
                                  G4bool* validNorm = nullptr,
                                  G4ThreeVector* n = nullptr ) const override;

    G4double DistanceToOut( const G4ThreeVector& p ) const override;

    void ComputeDimensions(       G4VPVParameterisation* p,
                            const G4int n,
                            const G4VPhysicalVolume* pRep ) override;

    G4double GetCubicVolume() override;
    G4double GetSurfaceArea() override;

    void CleanTransformations();

    G4ThreeVector GetPointOnSurface() const override;

    G4Scale3D GetScaleTransform() const; 
    void SetScaleTransform(const G4Scale3D& scale); 

    G4VSolid* GetUnscaledSolid() const;

    G4GeometryType  GetEntityType() const override;
    G4VSolid* Clone() const override;

    std::ostream& StreamInfo(std::ostream& os) const override;

    G4ScaledSolid(__void__&);
      // Fake default constructor for usage restricted to direct object
      // persistency for clients requiring preallocation of memory for
      // persistifiable objects.

    G4ScaledSolid(const G4ScaledSolid& rhs);
    G4ScaledSolid& operator=(const G4ScaledSolid& rhs);
      // Copy constructor and assignment operator.

    void DescribeYourselfTo ( G4VGraphicsScene& scene ) const override;
    G4Polyhedron* CreatePolyhedron () const override;
    G4Polyhedron* GetPolyhedron    () const override;
      // For creating graphical representations (i.e. for visualisation).

  private:

    G4VSolid* fPtrSolid = nullptr;
    G4ScaleTransform* fScale = nullptr;
    G4double fCubicVolume = -1.0;
    G4double fSurfaceArea = -1.0;
    mutable G4bool fRebuildPolyhedron = false;
    mutable G4Polyhedron* fpPolyhedron = nullptr;
};

#endif
