BraggScattererFactory.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2014 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include "MantidGeometry/DllConfig.h"
#include "MantidKernel/DynamicFactory.h"
#include "MantidKernel/SingletonHolder.h"
 
#include "MantidGeometry/Crystal/BraggScatterer.h"
#include "MantidGeometry/Crystal/CompositeBraggScatterer.h"
 
namespace Mantid {
namespace Geometry {
 
class MANTID_GEOMETRY_DLL BraggScattererFactoryImpl : public Kernel::DynamicFactory<BraggScatterer> {
public:
  BraggScatterer_sptr createScatterer(const std::string &name, const std::string &properties = "") const;
 
  template <class C> void subscribeScatterer() {
    auto instantiator = std::make_unique<Kernel::Instantiator<C, BraggScatterer>>();
    BraggScatterer_sptr scatterer = instantiator->createInstance();
 
    subscribe(scatterer->name(), std::move(instantiator));
  }
 
private:
  friend struct Mantid::Kernel::CreateUsingNew<BraggScattererFactoryImpl>;
 
  BraggScattererFactoryImpl();
};
 
using BraggScattererFactory = Mantid::Kernel::SingletonHolder<BraggScattererFactoryImpl>;
 
} // namespace Geometry
} // namespace Mantid
 
namespace Mantid {
namespace Kernel {
EXTERN_MANTID_GEOMETRY template class MANTID_GEOMETRY_DLL
    Mantid::Kernel::SingletonHolder<Mantid::Geometry::BraggScattererFactoryImpl>;
}
} // namespace Mantid
 
#define DECLARE_BRAGGSCATTERER(classname)                                                                              \
  namespace {                                                                                                          \
  Mantid::Kernel::RegistrationHelper register_scatterer_##classname(                                                   \
      ((Mantid::Geometry::BraggScattererFactory::Instance().subscribeScatterer<classname>()), 0));                     \
  }