smesh/src/SMDS/SMDS_ElementHolder.hxx
2022-05-05 16:51:14 +03:00

97 lines
3.0 KiB
C++

// Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library 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 2.1 of the License, or (at your option) any later version.
//
// This library 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 this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// File : SMDS_ElementHolder.hxx
// Module : SMESH
//
#ifndef _SMDS_ElementHolder_HeaderFile
#define _SMDS_ElementHolder_HeaderFile
#include "SMESH_SMDS.hxx"
#include "SMDS_ElemIterator.hxx"
#include <smIdType.hxx>
#include <vtkType.h>
#include <vector>
#include <set>
class SMDS_Mesh;
class SMDS_MeshElement;
//------------------------------------------------------------------------------------
/*!
* \brief Base class of object holding SMDS_MeshElement pointers.
* Registering such an object in SMDS_Mesh assures that the
* pointers remain valid after compacting the mesh
*/
class SMDS_EXPORT SMDS_ElementHolder
{
public:
//! register self in the mesh
SMDS_ElementHolder( const SMDS_Mesh* mesh );
//! un-register self from the mesh
virtual ~SMDS_ElementHolder();
protected:
//!< the descendant object return its elements just before the mesh compacting
virtual SMDS_ElemIteratorPtr getElements() = 0;
//!< the descendant object temporary remove its elements
virtual void tmpClear() = 0;
//!< the descendant object re-add its elements after the mesh compacting
virtual void add( const SMDS_MeshElement* element ) = 0;
//!< the descendant squeeze its element storage after re-adding elements
virtual void compact() = 0;
//!< allow the descendant treat its elements before mesh clearing
virtual void clear() {}
SMDS_Mesh* myMesh;
private: // methods called by SMDS_Mesh
friend class SMDS_Mesh;
//! store vtkIDs of elements
void beforeCompacting();
//! restore pointers to elements
void restoreElements( const std::vector<smIdType>& idNodessOldToNew,
const std::vector<smIdType>& idCellsOldToNew );
std::vector<const SMDS_MeshElement*> myExternalElems; //!< elements not contained in the mesh
std::vector< vtkIdType > myVtkIDs; //!< vtk IDs of elements
std::vector< bool > myIsNode;
std::set< SMDS_ElementHolder* >::iterator myPtrInMesh;
};
#endif