MagneticFieldStore.h

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#ifndef SIMCORE_MAGNETICFIELDSTORE_H_
#define SIMCORE_MAGNETICFIELDSTORE_H_
 
// Geant4
#include <map>
 
#include "G4MagneticField.hh"
 
namespace simcore {
 
class MagneticFieldStore {
 public:
  using MagFieldMap = std::map<std::string, G4MagneticField*>;
 
  static MagneticFieldStore* getInstance() {
    static MagneticFieldStore instance;
    return &instance;
  }
 
  ~MagneticFieldStore() {
    for (auto& name_field : mag_fields_) {
      delete name_field.second;
    }
    mag_fields_.clear();
  }
 
  G4MagneticField* getMagneticField(const std::string& name) {
    return mag_fields_.at(name);
  }
 
  void addMagneticField(const std::string& name, G4MagneticField* magField) {
    mag_fields_[name] = magField;
  }
 
 private:
  MagFieldMap mag_fields_;
};
 
}  // namespace simcore
 
#endif