interface.h

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// ------------------------------------------------------
//
// SPDX-License-Identifier: GPL-2.0-or-later
//
// SPDX-FileCopyrightText: Copyright (C) 2011-2025 by the ASPECT authors.
//
// This file is part of ASPECT.
//
// Detailed license information governing the source code and
// contributions can be found in the folder LICENSES and in
// LICENSE and CONTRIBUTING.md at the top level directory.
//
// ------------------------------------------------------


#ifndef _aspect_gravity_model_interface_h
#define _aspect_gravity_model_interface_h

#include <aspect/plugins.h>
#include <deal.II/base/point.h>
#include <deal.II/base/parameter_handler.h>

namespace aspect
{
  namespace GravityModel
  {
    template <int dim>
    class Interface : public Plugins::InterfaceBase
    {
      public:
        virtual Tensor<1,dim> gravity_vector (const Point<dim> &position) const = 0;
    };




    template <int dim>
    void
    register_gravity_model (const std::string &name,
                            const std::string &description,
                            void (*declare_parameters_function) (ParameterHandler &),
                            std::unique_ptr<Interface<dim>> (*factory_function) ());

    template <int dim>
    std::unique_ptr<Interface<dim>>
    create_gravity_model (ParameterHandler &prm);


    template <int dim>
    void
    declare_parameters (ParameterHandler &prm);


    template <int dim>
    void
    write_plugin_graph (std::ostream &output_stream);


#define ASPECT_REGISTER_GRAVITY_MODEL(classname,name,description) \
  template class classname<2>; \
  template class classname<3>; \
  namespace ASPECT_REGISTER_GRAVITY_MODEL_ ## classname \
  { \
    aspect::internal::Plugins::RegisterHelper<aspect::GravityModel::Interface<2>,classname<2>> \
    dummy_ ## classname ## _2d (&aspect::GravityModel::register_gravity_model<2>, \
                                name, description); \
    aspect::internal::Plugins::RegisterHelper<aspect::GravityModel::Interface<3>,classname<3>> \
    dummy_ ## classname ## _3d (&aspect::GravityModel::register_gravity_model<3>, \
                                name, description); \
  }
  }
}


#endif