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// $Id: $
//
/// \file Par02EventAction.hh
/// \brief Definition of the Par02EventAction class

#ifndef PAR02_EVENT_ACTION_H
#define PAR02_EVENT_ACTION_H

#include "G4UserEventAction.hh"
#include "globals.hh"

/// Event action (before/after event processing).
///
/// Defines the action at the beginning and at the end of each event.
/// It is invoked by a G4EventManager when a G4Event object is sent
/// (which contains primary vertices and particles created by the 
/// Par02PrimaryGeneratorAction).
/// @author Anna Zaborowska

class Par02EventAction : public G4UserEventAction {
  public:
    
    /// A default constructor. 
    /// Sets the flag fSmear to true indicating that smearing will be performed.
    Par02EventAction();
    
    /// A constructor.
    /// @param aSmear The flag indicating if smearing has to be done.
    Par02EventAction( G4bool aSmear );

    virtual ~Par02EventAction();

    /// Defines the actions at the beginning of the event. 
    /// It sets the Par02EventInformation with fSmear flag. 
    /// It creates all the ntuples defined in Par02Output singleton class.
    virtual void BeginOfEventAction( const G4Event* );
    
    /// Defines the actions at the end of the event.
    virtual void EndOfEventAction( const G4Event* );

  private:
    
    /// A flag indicating if smearing should be performed. 
    /// Passed to Par02EventInformation in BeginOfEventAction(const G4Event*).
    G4bool fSmear;
};

#endif

