StdMeshers_ObjRefUlils.hxx

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// Copyright (C) 2007-2016  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
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//  SMESH SMESH : implementaion of SMESH idl descriptions
// File      : StdMeshers_ObjRefUlils.hxx
// Created   : Wed Oct 18 15:15:27 2006
// Author    : Edward AGAPOV (eap)
//
#ifndef StdMeshers_ObjRefUlils_HeaderFile
#define StdMeshers_ObjRefUlils_HeaderFile

#include "SMESH_Gen_i.hxx"

class StdMeshers_ObjRefUlils
{
public:
   static GEOM::GEOM_Object_ptr ShapeToGeomObject (const TopoDS_Shape& theShape ) {
     if (SMESH_Gen_i* gen = SMESH_Gen_i::GetSMESHGen())
       return gen->ShapeToGeomObject( theShape );
     else
       return GEOM::GEOM_Object::_nil();
   }

  static TopoDS_Shape GeomObjectToShape(GEOM::GEOM_Object_ptr theGeomObject) {
     if (SMESH_Gen_i* gen = SMESH_Gen_i::GetSMESHGen())
       return gen->GeomObjectToShape( theGeomObject );
     else
       return TopoDS_Shape();
  }

  static std::string GeomObjectToEntry(GEOM::GEOM_Object_ptr theGeomObject);

  static GEOM::GEOM_Object_ptr EntryOrShapeToGeomObject (const std::string&  theEntry,
                                                         const TopoDS_Shape& theShape);


  static void SaveToStream( const TopoDS_Shape& theShape, std::ostream & stream);

  static TopoDS_Shape LoadFromStream( std::istream & stream, std::string* entry=NULL );

  static void SaveToStream( CORBA::Object_ptr obj, std::ostream & stream );

  template<class TInterface> 
  static 
  typename TInterface::_var_type LoadObjectFromStream( std::istream & stream )
  {
    if (SMESH_Gen_i* gen = SMESH_Gen_i::GetSMESHGen()) {
      std::string str;
      if (stream >> str) {
        if ( StudyContext* myStudyContext = gen->GetCurrentStudyContext() ) {
          std::string ior = myStudyContext->getIORbyOldId( atoi( str.c_str() ));
          if ( !ior.empty() )
             return TInterface::_narrow(gen->GetORB()->string_to_object( ior.c_str() ));
        }
      }
    }
    return TInterface::_nil();
  }

  static void SaveToStream( const std::string& studyEntry, std::ostream & stream);

};

#endif