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//
//
// $Id: G4Wt.hh,v 1.2 2007/11/08 17:00:09 lgarnier Exp $
// GEANT4 tag $Name: HEAD $
//
//  To unify Wt event treatment between 
// G4/interfaces Wt sessions and G4/visualizations Wt drivers.
// L. Garnier
#ifndef G4WT_HH
#define G4WT_HH

//#define G4INTY_BUILD_WT

#if defined(G4INTY_BUILD_WT) || defined(G4INTY_USE_WT)

#include "G4VInteractorManager.hh"

namespace Wt {
  class WEnvironment;  
}

// Class description :
//
//  G4Wt : a singleton to handle GUI sessions and visualization 
// drivers built over Wt. It permits to have one Wt main loop for 
// the whole application. The Wt toolkit is inited in the 
// constructor. It is done once for the whole application.
//
// Class description - end :

class G4Wt : public G4VInteractorManager {
public:
  static G4Wt* getInstance();
  static G4Wt* getInstance(const Wt::WEnvironment&);
  G4bool Inited();
  void* GetEvent();
  void FlushAndWaitExecution();
  virtual ~G4Wt();                     
private:
  G4Wt (const Wt::WEnvironment&);                     
  static G4Wt* instance; // Pointer to single instance.
};

#endif //HAS_WT

#endif