#include <TSystem.h>
#include <HKED.h>
#include <TGNumberEntry.h>
#include <TGButton.h>

class EvNavHandler
{
public:
	HKED *fHKED;
	EvNavHandler(HKED* gHKED) : fHKED(gHKED) {};
	void Fwd();
	void Bck();
	void AccumulateEventsBoxChanged(Bool_t s);
	void TruthTrackMinimumEnergyChanged();
	void UnrolledEventAngleChanged();
	void ColourIsTimeBoxChanged(Bool_t s);
	void DrawTruthConesChanged(Bool_t value);

	void reload_wcsim_hits(int iTrigger);
	void SwitchGeometry();
	void ClearOverlays();

	TGNumberEntry  *fTruthTrackMinimumEnergyWidget;
	TGNumberEntry  *fUnrolledViewAngleWidget;
	TGTextButton   *fGeometrySwitchButton;
	ClassDef(EvNavHandler,1);  // Interface class for handling Eve events 
};