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/// \file OpNovicePrimaryGeneratorMessenger.cc
/// \brief Implementation of the OpNovicePrimaryGeneratorMessenger class

#include "OpNovicePrimaryGeneratorMessenger.hh"

#include "OpNovicePrimaryGeneratorAction.hh"

#include "G4SystemOfUnits.hh"
#include "G4UIcmdWithADoubleAndUnit.hh"
#include "G4UIdirectory.hh"

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OpNovicePrimaryGeneratorMessenger::OpNovicePrimaryGeneratorMessenger(
  OpNovicePrimaryGeneratorAction* OpNoviceGun)
  : G4UImessenger(), fOpNoviceAction(OpNoviceGun)
{
  fGunDir = new G4UIdirectory("/OpNovice/gun/");
  fGunDir->SetGuidance("PrimaryGenerator control");

  fPolarCmd = new G4UIcmdWithADoubleAndUnit("/OpNovice/gun/optPhotonPolar", this);
  fPolarCmd->SetGuidance("Set linear polarization");
  fPolarCmd->SetGuidance("  angle w.r.t. (k,n) plane");
  fPolarCmd->SetParameterName("angle", true);
  fPolarCmd->SetUnitCategory("Angle");
  fPolarCmd->SetDefaultValue(-360.0);
  fPolarCmd->SetDefaultUnit("deg");
  fPolarCmd->AvailableForStates(G4State_Idle);
}

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OpNovicePrimaryGeneratorMessenger::~OpNovicePrimaryGeneratorMessenger()
{
  delete fPolarCmd;
  delete fGunDir;
}

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void OpNovicePrimaryGeneratorMessenger::SetNewValue(G4UIcommand* command, G4String newValue)
{
  if (command == fPolarCmd) {
    G4double angle = fPolarCmd->GetNewDoubleValue(newValue);
    if (angle == -360.0 * deg) {
      fOpNoviceAction->SetOptPhotonPolar();
    }
    else {
      fOpNoviceAction->SetOptPhotonPolar(angle);
    }
  }
}
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