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mesh_events.hh
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mesh_events.hh
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/**
* Copyright (©) 2015-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*/
/* -------------------------------------------------------------------------- */
#include <utility>
#include "aka_array.hh"
#include "element.hh"
#include "element_type_map.hh"
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_MESH_EVENTS_HH_
#define AKANTU_MESH_EVENTS_HH_
namespace akantu {
/// akantu::MeshEvent is the base event for meshes
template <class Entity> class MeshEvent {
public:
MeshEvent(const std::string & origin = "") : origin_(origin) {}
virtual ~MeshEvent() = default;
/// Get the list of entity modified by the event nodes or elements
const Array<Entity> & getList() const { return list; }
/// Get the list of entity modified by the event nodes or elements
Array<Entity> & getList() { return list; }
std::string origin() const { return origin_; }
protected:
Array<Entity> list;
private:
std::string origin_;
};
class Mesh;
/// akantu::MeshEvent related to new nodes in the mesh
class NewNodesEvent : public MeshEvent<Idx> {
public:
NewNodesEvent(const std::string & origin = "") : MeshEvent(origin) {}
~NewNodesEvent() override = default;
};
/// akantu::MeshEvent related to nodes removed from the mesh
class RemovedNodesEvent : public MeshEvent<Idx> {
public:
inline RemovedNodesEvent(const Mesh & mesh, const std::string & origin = "");
~RemovedNodesEvent() override = default;
/// Get the new numbering following suppression of nodes from nodes arrays
AKANTU_GET_MACRO_NOT_CONST(NewNumbering, new_numbering, auto &);
/// Get the new numbering following suppression of nodes from nodes arrays
AKANTU_GET_MACRO(NewNumbering, new_numbering, const auto &);
private:
Array<Idx> new_numbering;
};
/// akantu::MeshEvent related to new elements in the mesh
class NewElementsEvent : public MeshEvent<Element> {
public:
NewElementsEvent(const std::string & origin = "")
: MeshEvent<Element>(origin) {}
~NewElementsEvent() override = default;
};
/// akantu::MeshEvent related to the case the mesh is made distributed.
/// Note that the `list` has no meaning for this event.
class MeshIsDistributedEvent : public MeshEvent<UInt> {
public:
MeshIsDistributedEvent(const std::string & origin = "")
: MeshEvent<UInt>(origin) {}
~MeshIsDistributedEvent() override = default;
};
/// akantu::MeshEvent related to elements removed from the mesh
class RemovedElementsEvent : public MeshEvent<Element> {
public:
inline RemovedElementsEvent(const Mesh & mesh,
const ID & new_numbering_id = "new_numbering",
const std::string & origin = "");
~RemovedElementsEvent() override = default;
/// Get the new numbering following suppression of elements from elements
/// arrays
AKANTU_GET_MACRO(NewNumbering, new_numbering, const auto &);
/// Get the new numbering following suppression of elements from elements
/// arrays
AKANTU_GET_MACRO_NOT_CONST(NewNumbering, new_numbering, auto &);
/// Get the new numbering following suppression of elements from elements
/// arrays
AKANTU_GET_MACRO_BY_ELEMENT_TYPE(NewNumbering, new_numbering, Idx);
/// Get the new numbering following suppression of elements from elements
/// arrays
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(NewNumbering, new_numbering, Idx);
protected:
ElementTypeMapArray<Idx> new_numbering;
};
/// akantu::MeshEvent for element that changed in some sort, can be seen as a
/// combination of removed and added elements
class ChangedElementsEvent : public RemovedElementsEvent {
public:
inline ChangedElementsEvent(
const Mesh & mesh,
const ID & new_numbering_id = "changed_event:new_numbering",
const std::string & origin = "")
: RemovedElementsEvent(mesh, new_numbering_id, origin) {}
~ChangedElementsEvent() override = default;
AKANTU_GET_MACRO(ListOld, list, const Array<Element> &);
AKANTU_GET_MACRO_NOT_CONST(ListOld, list, Array<Element> &);
AKANTU_GET_MACRO(ListNew, new_list, const Array<Element> &);
AKANTU_GET_MACRO_NOT_CONST(ListNew, new_list, Array<Element> &);
protected:
Array<Element> new_list;
};
/* -------------------------------------------------------------------------- */
class MeshEventHandler {
public:
virtual ~MeshEventHandler() = default;
/* ------------------------------------------------------------------------ */
/* Internal code */
/* ------------------------------------------------------------------------ */
private:
/// send a akantu::NewNodesEvent
inline void sendEvent(const NewNodesEvent & event) {
onNodesAdded(event.getList(), event);
}
/// send a akantu::RemovedNodesEvent
inline void sendEvent(const RemovedNodesEvent & event) {
onNodesRemoved(event.getList(), event.getNewNumbering(), event);
}
/// send a akantu::NewElementsEvent
inline void sendEvent(const NewElementsEvent & event) {
onElementsAdded(event.getList(), event);
}
/// send a akantu::RemovedElementsEvent
inline void sendEvent(const RemovedElementsEvent & event) {
onElementsRemoved(event.getList(), event.getNewNumbering(), event);
}
/// send a akantu::ChangedElementsEvent
inline void sendEvent(const ChangedElementsEvent & event) {
onElementsChanged(event.getListOld(), event.getListNew(),
event.getNewNumbering(), event);
}
/// send a akantu::MeshIsDistributedEvent
inline void sendEvent(const MeshIsDistributedEvent & event) {
onMeshIsDistributed(event);
}
template <class EventHandler> friend class EventHandlerManager;
/* ------------------------------------------------------------------------ */
/* Interface */
/* ------------------------------------------------------------------------ */
public:
/// function to implement to react on akantu::NewNodesEvent
virtual void onNodesAdded(const Array<Idx> & /*nodes_list*/,
const NewNodesEvent & /*event*/) {}
/// function to implement to react on akantu::RemovedNodesEvent
virtual void onNodesRemoved(const Array<Idx> & /*nodes_list*/,
const Array<Idx> & /*new_numbering*/,
const RemovedNodesEvent & /*event*/) {}
/// function to implement to react on akantu::NewElementsEvent
virtual void onElementsAdded(const Array<Element> & /*elements_list*/,
const NewElementsEvent & /*event*/) {}
/// function to implement to react on akantu::RemovedElementsEvent
virtual void
onElementsRemoved(const Array<Element> & /*elements_list*/,
const ElementTypeMapArray<Idx> & /*new_numbering*/,
const RemovedElementsEvent & /*event*/) {}
/// function to implement to react on akantu::ChangedElementsEvent
virtual void
onElementsChanged(const Array<Element> & /*old_elements_list*/,
const Array<Element> & /*new_elements_list*/,
const ElementTypeMapArray<Idx> & /*new_numbering*/,
const ChangedElementsEvent & /*event*/) {}
/// function to implement to react on akantu::MeshIsDistributedEvent
virtual void onMeshIsDistributed(const MeshIsDistributedEvent & /*event*/) {}
};
} // namespace akantu
#endif /* AKANTU_MESH_EVENTS_HH_ */

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