G4Xt.hh

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//
//
//
//  To unify X11 event treatment between 
// G4/interfaces Xt sessions and G4/visualizations Xt drivers.
// G.Barrand
 
#ifndef G4XT_HH
#define G4XT_HH
 
#include <X11/Intrinsic.h>
 
#include "G4VInteractorManager.hh"
 
// Class description :
//
//  G4Xt : a singleton to handle GUI sessions and visualization 
// drivers built over Xt. It permits to have one Xt main loop for 
// the whole application. The Xt toolkit is inited in the 
// constructor. It is done once for the whole application.
//
// Class description - end :
 
class G4Xt : public G4VInteractorManager {
public:
  static G4Xt* getInstance();
  static G4Xt* getInstance(int,char**,char*);
  void PutStringInResourceDatabase(char*);
  G4bool Inited();
  void* GetEvent();
  void FlushAndWaitExecution();
  virtual ~G4Xt();                     
  // Workaround for gcc8 Coverity cast warning
  static bool xt_dispatch_event(void* a_event) {
     return XtDispatchEvent((XEvent*)a_event);
  }
private:
  G4Xt (const G4Xt&);
  G4Xt (int,char**,char*);
  G4Xt& operator= (const G4Xt&);
  static G4Xt* instance; // Pointer to single instance.
};
 
#endif