MaterialSteppingAction.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2017-2021 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#pragma once

#include "Acts/Utilities/Logger.hpp"
#include "ActsExamples/Geant4/EventStore.hpp"

#include <memory>
#include <string>
#include <vector>

#include <G4UserSteppingAction.hh>

class G4Step;

namespace ActsExamples {

class MaterialSteppingAction final : public G4UserSteppingAction {
 public:
  struct Config {
    std::shared_ptr<EventStore> eventStore;

    std::vector<std::string> excludeMaterials = {};
  };

  MaterialSteppingAction(const Config& cfg,
                         std::unique_ptr<const Acts::Logger> logger =
                             Acts::getDefaultLogger("SimParticleTranslation",
                                                    Acts::Logging::INFO));
  ~MaterialSteppingAction() override;

  void UserSteppingAction(const G4Step* step) override;

 private:
  Config m_cfg;

  const Acts::Logger& logger() const { return *m_logger; }

  EventStore& eventStore() const { return *m_cfg.eventStore; }

  std::unique_ptr<const Acts::Logger> m_logger;
};

}  // namespace ActsExamples