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/// \file B2aDetectorMessenger.hh
/// \brief Definition of the B2aDetectorMessenger class

#ifndef B2aDetectorMessenger_h
#define B2aDetectorMessenger_h 1

#include "globals.hh"
#include "G4UImessenger.hh"

class B2aDetectorConstruction;
class G4UIdirectory;
class G4UIcmdWithAString;
class G4UIcmdWithADoubleAndUnit;

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/// Messenger class that defines commands for B2aDetectorConstruction.
///
/// It implements commands:
/// - /B2/det/setTargetMaterial name
/// - /B2/det/setChamberMaterial name
/// - /B2/det/stepMax value unit

class B2aDetectorMessenger: public G4UImessenger
{
  public:
    B2aDetectorMessenger(B2aDetectorConstruction* );
    virtual ~B2aDetectorMessenger();
    
    virtual void SetNewValue(G4UIcommand*, G4String);
    
  private:
    B2aDetectorConstruction*  fDetectorConstruction;

    G4UIdirectory*           fB2Directory;
    G4UIdirectory*           fDetDirectory;

    G4UIcmdWithAString*      fTargMatCmd;
    G4UIcmdWithAString*      fChamMatCmd;

    G4UIcmdWithADoubleAndUnit* fStepMaxCmd;
};

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#endif
