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// G4CSGSolid
//
// Class description:
//
// An abstract class inherited from G4VSolid for Constructed Solids.
// Used primarily to structure inheritance tree.

// Author: John Apostolakis (CERN), 27.03.1998 - Created first version
// --------------------------------------------------------------------

#ifndef G4CSGSOLID_HH
#define G4CSGSOLID_HH 1

#include "G4VSolid.hh"

/**
 * @brief G4CSGSolid is an abstract class inherited from G4VSolid for
 * Constructed Solids. Used primarily to structure inheritance tree.
 */

class G4CSGSolid : public G4VSolid
{
  public:

    /**
     * Constructor with a name.
     */
    G4CSGSolid(const G4String& pName);

    /**
     * Destructor.
     */
    ~G4CSGSolid() override;

    /**
     * Streams the object contents to an output stream.
     */
    std::ostream& StreamInfo(std::ostream& os) const override;

    /**
     * Returns a pointer to the generated polyhedron for visualisation.
     */
    G4Polyhedron* GetPolyhedron () const override;

    /**
     * Fake default constructor for usage restricted to direct object
     * persistency for clients requiring preallocation of memory for
     * persistifiable objects.
     */
    G4CSGSolid(__void__&);

    /**
     * Copy constructor and assignment operator.
     */
    G4CSGSolid(const G4CSGSolid& rhs);
    G4CSGSolid& operator=(const G4CSGSolid& rhs); 

  protected:

    /**
     * Utility function for subclasses to generate proper circular areas.
     */
    G4double GetRadiusInRing(G4double rmin, G4double rmax) const;

  protected:

    G4double fCubicVolume = 0.0;
    G4double fSurfaceArea = 0.0;
    mutable G4bool fRebuildPolyhedron = false;
    mutable G4Polyhedron* fpPolyhedron = nullptr;
};

#endif