G4VStateDependent.hh

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// $Id: G4VStateDependent.hh 110286 2018-05-18 09:40:01Z gcosmo $
//
// 
// ------------------------------------------------------------
//      GEANT 4 class header file 
//
//
//      ---------------- G4VStateDependent ----------------
//
// Authors: G.Cosmo, M.Asai - November 1996
//
// ------------------------------------------------------------
//
// Class description:
//
// Abstract base class of all classes which need to be notified when
// the state of Geant4 changes. The concrete class object derived from
// this base class will be automatically registered to G4StateManager
// and the virtual method Notify() will be invoked when the state changes.

// ------------------------------------------------------------

#ifndef G4VStateDependent_h
#define G4VStateDependent_h 1

#include "G4Types.hh"
#include "G4ApplicationState.hh"

class G4VStateDependent
{

public:

  explicit G4VStateDependent(G4bool bottom=false);
  virtual ~G4VStateDependent();
  G4int operator==(const G4VStateDependent &right) const;
  G4int operator!=(const G4VStateDependent &right) const;

public: // with description

  virtual G4bool Notify(G4ApplicationState requestedState) = 0;
    // Pure virtual method which will be invoked by G4StateManager.
    // In case state change must not be allowed by some reason of the
    // concrete class, false should be returned. But this scheme is
    // NOT recommended to use. All command which are state sensitive
    // MUST assign available state(s).

private:

  G4VStateDependent(const G4VStateDependent &right);
  G4VStateDependent& operator=(const G4VStateDependent &right);

};

#endif