Salome HOME
regression SALOME_TESTS/Grids/smesh/bugs_05/F1
[modules/smesh.git] / src / SMESH_I / SMESH_Gen_i.cxx
index dc47f8a848a90ef34afd293464453bb63e1add95..6b962a028b003449a14ee77f41dc4c2aa5b7b537 100644 (file)
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2012  CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2014  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
@@ -6,7 +6,7 @@
 // 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.
+// 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
 #include <TCollection_AsciiString.hxx>
 #include <OSD.hxx>
 
-#ifdef WNT
+#ifdef WIN32
  #include <windows.h>
  #include <process.h>
 #else
  #include <dlfcn.h>
 #endif
 
-#ifdef WNT
+#ifdef WIN32
  #define LibHandle HMODULE
  #define LoadLib( name ) LoadLibrary( name )
  #define GetProc GetProcAddress
 #endif
 
 #include "SMESH_Gen_i.hxx"
+#include "SMESH_version.h"
 
+#include "DriverMED_W_SMESHDS_Mesh.h"
+#include "DriverMED_R_SMESHDS_Mesh.h"
+#ifdef WITH_CGNS
+#include "DriverCGNS_Read.hxx"
+#endif
+#include "MED_Factory.hxx"
 #include "SMDS_EdgePosition.hxx"
 #include "SMDS_FacePosition.hxx"
 #include "SMDS_PolyhedralVolumeOfNodes.hxx"
 #include "SMESH_Mesh_i.hxx"
 #include "SMESH_PreMeshInfo.hxx"
 #include "SMESH_PythonDump.hxx"
+#include "SMESH_TryCatch.hxx" // to include after OCC headers!
 
 #include CORBA_SERVER_HEADER(SMESH_Group)
 #include CORBA_SERVER_HEADER(SMESH_Filter)
 #include CORBA_SERVER_HEADER(SMESH_MeshEditor)
 
-#include "DriverMED_W_SMESHDS_Mesh.h"
-#include "DriverMED_R_SMESHDS_Mesh.h"
-#ifdef WITH_CGNS
-#include "DriverCGNS_Read.hxx"
-#endif
-#include "memoire.h"
 
 #include <GEOM_Client.hxx>
 
 #include <Basics_Utils.hxx>
+#include <Basics_DirUtils.hxx>
 #include <HDFOI.hxx>
 #include <OpUtil.hxx>
 #include <SALOMEDS_Tool.hxx>
 #include <SALOME_Container_i.hxx>
+#include <SALOME_DataContainer_i.hxx>
 #include <SALOME_LifeCycleCORBA.hxx>
 #include <SALOME_NamingService.hxx>
 #include <Utils_CorbaException.hxx>
 #include CORBA_CLIENT_HEADER(SALOME_ModuleCatalog)
 #include CORBA_CLIENT_HEADER(SALOME_Session)
 
+// helpers about SALOME::GenericObj
+#include <SALOMEDS_wrap.hxx>
+#include <SALOMEDS_Attributes_wrap.hxx>
+#include <GEOM_wrap.hxx>
+
 #include <map>
 #include <fstream>
 #include <cstdio>
-#include <stdlib.h>
+#include <cstdlib>
 
 using namespace std;
 using SMESH::TPythonDump;
@@ -175,16 +184,16 @@ PortableServer::ServantBase_var SMESH_Gen_i::GetServant( CORBA::Object_ptr theOb
 
 CORBA::Object_var SMESH_Gen_i::SObjectToObject( SALOMEDS::SObject_ptr theSObject )
 {
-  SALOMEDS::GenericAttribute_var anAttr;
+  SALOMEDS::GenericAttribute_wrap anAttr;
   CORBA::Object_var anObj;
   if ( !theSObject->_is_nil() ) {
     try {
-      if( theSObject->FindAttribute( anAttr, "AttributeIOR" ) ) {
-        SALOMEDS::AttributeIOR_var anIOR  = SALOMEDS::AttributeIOR::_narrow( anAttr );
+      if( theSObject->FindAttribute( anAttr.inout(), "AttributeIOR" ) ) {
+        SALOMEDS::AttributeIOR_wrap anIOR  = anAttr;
         CORBA::String_var aValue = anIOR->Value();
         if( strcmp( aValue, "" ) != 0 )
           anObj = GetORB()->string_to_object( aValue );
-        }
+      }
     }
     catch( ... ) {
       INFOS( "SObjectToObject - Unknown exception was caught!!!" );
@@ -233,7 +242,7 @@ SALOME_LifeCycleCORBA*  SMESH_Gen_i::GetLCC() {
  *  Get GEOM::GEOM_Gen reference
  */
 //=============================================================================
-GEOM::GEOM_Gen_ptr SMESH_Gen_i::GetGeomEngine() {
+GEOM::GEOM_Gen_var SMESH_Gen_i::GetGeomEngine() {
   //CCRT GEOM::GEOM_Gen_var aGeomEngine =
   //CCRT   GEOM::GEOM_Gen::_narrow( GetLCC()->FindOrLoad_Component("FactoryServer","GEOM") );
   //CCRT return aGeomEngine._retn();
@@ -287,6 +296,9 @@ SMESH_Gen_i::SMESH_Gen_i( CORBA::ORB_ptr            orb,
   myIsHistoricalPythonDump = true;
   myToForgetMeshDataOnHypModif = false;
 
+  myImportedStudyChanged = true;
+  myImportedStudyId      = 0;
+
   // set it in standalone mode only
   //OSD::SetSignal( true );
 
@@ -303,7 +315,7 @@ SMESH_Gen_i::SMESH_Gen_i( CORBA::ORB_ptr            orb,
       CORBA::String_var str_host = session->getHostname();
       CORBA::Long        s_pid = session->getPID();
       string my_host = Kernel_Utils::GetHostname();
-#ifdef WNT
+#ifdef WIN32
       long    my_pid = (long)_getpid();
 #else
       long    my_pid = (long) getpid();
@@ -340,23 +352,23 @@ SMESH_Gen_i::~SMESH_Gen_i()
   }
   myStudyContextMap.clear();
   // delete shape reader
-  if ( !myShapeReader )
+  if ( myShapeReader )
     delete myShapeReader;
 }
-
 //=============================================================================
 /*!
- *  SMESH_Gen_i::createHypothesis
+ *  SMESH_Gen_i::getHypothesisCreator
  *
- *  Create hypothesis of given type
+ *  Get hypothesis creator
  */
 //=============================================================================
-SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::createHypothesis(const char* theHypName,
-                                                          const char* theLibName)
-     throw (SALOME::SALOME_Exception)
+GenericHypothesisCreator_i* SMESH_Gen_i::getHypothesisCreator(const char* theHypName,
+                                                              const char* theLibName,
+                                                              std::string& thePlatformLibName)
+  throw (SALOME::SALOME_Exception)
 {
+  std::string aPlatformLibName;
   /* It's Need to tranlate lib name for WIN32 or X platform */
-  char* aPlatformLibName = 0;
   if ( theLibName && theLibName[0] != '\0'  )
   {
     int libNameLen = strlen(theLibName);
@@ -366,45 +378,30 @@ SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::createHypothesis(const char* theHypName
         !strcmp( theLibName+libNameLen-3, ".so" ))
     {
       //the old format
-#ifdef WNT
-      aPlatformLibName = new char[libNameLen - 1];
-      aPlatformLibName[0] = '\0';
-      aPlatformLibName = strncat( aPlatformLibName, theLibName+3, libNameLen-6  );
-      aPlatformLibName = strcat( aPlatformLibName, ".dll" );
-      aPlatformLibName[libNameLen - 2] = '\0';
+#ifdef WIN32
+      aPlatformLibName = std::string( theLibName+3, libNameLen-6 ) + ".dll";
 #else
-      aPlatformLibName = new char[ libNameLen + 1];
-      aPlatformLibName[0] = '\0';
-      aPlatformLibName = strcat( aPlatformLibName, theLibName );
-      aPlatformLibName[libNameLen] = '\0';
+      aPlatformLibName = theLibName;
 #endif
     }
     else
     {
       //try to use new format
-#ifdef WNT
-      aPlatformLibName = new char[ libNameLen + 5 ];
-      aPlatformLibName[0] = '\0';
-      aPlatformLibName = strcat( aPlatformLibName, theLibName );
-      aPlatformLibName = strcat( aPlatformLibName, ".dll" );
+#ifdef WIN32
+      aPlatformLibName = theLibName;
+      aPlatformLibName += ".dll";
 #else
-      aPlatformLibName = new char[ libNameLen + 7 ];
-      aPlatformLibName[0] = '\0';
-      aPlatformLibName = strcat( aPlatformLibName, "lib" );
-      aPlatformLibName = strcat( aPlatformLibName, theLibName );
-      aPlatformLibName = strcat( aPlatformLibName, ".so" );
+      aPlatformLibName = "lib" + std::string( theLibName ) + ".so";
 #endif
     }
   }
-
+  thePlatformLibName = aPlatformLibName;
 
   Unexpect aCatch(SALOME_SalomeException);
-  if(MYDEBUG) MESSAGE( "Create Hypothesis <" << theHypName << "> from " << aPlatformLibName/*theLibName*/);
-
-  // create a new hypothesis object servant
-  SMESH_Hypothesis_i* myHypothesis_i = 0;
-  SMESH::SMESH_Hypothesis_var hypothesis_i;
+  if(MYDEBUG) MESSAGE( "Create Hypothesis <" << theHypName << "> from " << aPlatformLibName);
 
+  typedef GenericHypothesisCreator_i* (*GetHypothesisCreator)(const char* );
+  GenericHypothesisCreator_i* aCreator;
   try
   {
     // check, if creator for this hypothesis type already exists
@@ -412,11 +409,11 @@ SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::createHypothesis(const char* theHypName
     {
       // load plugin library
       if(MYDEBUG) MESSAGE("Loading server meshers plugin library ...");
-      LibHandle libHandle = LoadLib( aPlatformLibName/*theLibName*/ );
+      LibHandle libHandle = LoadLib( aPlatformLibName.c_str() );
       if (!libHandle)
       {
         // report any error, if occured
-#ifndef WNT
+#ifndef WIN32
         const char* anError = dlerror();
         throw(SALOME_Exception(anError));
 #else
@@ -426,7 +423,6 @@ SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::createHypothesis(const char* theHypName
 
       // get method, returning hypothesis creator
       if(MYDEBUG) MESSAGE("Find GetHypothesisCreator() method ...");
-      typedef GenericHypothesisCreator_i* (*GetHypothesisCreator)(const char* theHypName);
       GetHypothesisCreator procHandle =
         (GetHypothesisCreator)GetProc( libHandle, "GetHypothesisCreator" );
       if (!procHandle)
@@ -437,37 +433,56 @@ SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::createHypothesis(const char* theHypName
 
       // get hypothesis creator
       if(MYDEBUG) MESSAGE("Get Hypothesis Creator for " << theHypName);
-      GenericHypothesisCreator_i* aCreator = procHandle(theHypName);
+      aCreator = procHandle(theHypName);
       if (!aCreator)
       {
         throw(SALOME_Exception(LOCALIZED("no such a hypothesis in this plugin")));
       }
-
       // map hypothesis creator to a hypothesis name
       myHypCreatorMap[string(theHypName)] = aCreator;
+      return aCreator;
+    }
+    else
+    {
+      return myHypCreatorMap[string(theHypName)];
     }
-
-    // create a new hypothesis object, store its ref. in studyContext
-    if(MYDEBUG) MESSAGE("Create Hypothesis " << theHypName);
-    myHypothesis_i =
-      myHypCreatorMap[string(theHypName)]->Create(myPoa, GetCurrentStudyID(), &myGen);
-    myHypothesis_i->SetLibName(aPlatformLibName/*theLibName*/); // for persistency assurance
   }
   catch (SALOME_Exception& S_ex)
   {
     THROW_SALOME_CORBA_EXCEPTION(S_ex.what(), SALOME::BAD_PARAM);
   }
+  return aCreator;
+}
 
-  if ( aPlatformLibName )
-    delete[] aPlatformLibName;
+//=============================================================================
+/*!
+ *  SMESH_Gen_i::createHypothesis
+ *
+ *  Create hypothesis of given type
+ */
+//=============================================================================
+SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::createHypothesis(const char* theHypName,
+                                                          const char* theLibName)
+{
+  SMESH_Hypothesis_i* myHypothesis_i = 0;
+  SMESH::SMESH_Hypothesis_var hypothesis_i;
+  std::string aPlatformLibName;
+  typedef GenericHypothesisCreator_i* (*GetHypothesisCreator)(const char* );
+  GenericHypothesisCreator_i* aCreator = getHypothesisCreator(theHypName, theLibName, aPlatformLibName);
+  // create a new hypothesis object, store its ref. in studyContext
+  if(MYDEBUG) MESSAGE("Create Hypothesis " << theHypName);
+  myHypothesis_i =
+      myHypCreatorMap[string(theHypName)]->Create(myPoa, GetCurrentStudyID(), &myGen);
+  myHypothesis_i->SetLibName(aPlatformLibName.c_str()); // for persistency assurance
 
   if (!myHypothesis_i)
     return hypothesis_i._retn();
 
   // activate the CORBA servant of hypothesis
-  hypothesis_i = SMESH::SMESH_Hypothesis::_narrow( myHypothesis_i->_this() );
+  hypothesis_i = myHypothesis_i->_this();
   int nextId = RegisterObject( hypothesis_i );
-  if(MYDEBUG) MESSAGE( "Add hypo to map with id = "<< nextId );
+  if(MYDEBUG) { MESSAGE( "Add hypo to map with id = "<< nextId ); }
+  else        { nextId = 0; } // avoid "unused variable" warning in release mode
 
   return hypothesis_i._retn();
 }
@@ -496,7 +511,8 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::createMesh()
     // activate the CORBA servant of Mesh
     SMESH::SMESH_Mesh_var mesh = SMESH::SMESH_Mesh::_narrow( meshServant->_this() );
     int nextId = RegisterObject( mesh );
-    if(MYDEBUG) MESSAGE( "Add mesh to map with id = "<< nextId);
+    if(MYDEBUG) { MESSAGE( "Add mesh to map with id = "<< nextId); }
+    else        { nextId = 0; } // avoid "unused variable" warning in release mode
     return mesh._retn();
   }
   catch (SALOME_Exception& S_ex) {
@@ -603,30 +619,28 @@ void SMESH_Gen_i::setCurrentStudy( SALOMEDS::Study_ptr theStudy,
   myCurrentStudy = SALOMEDS::Study::_duplicate( theStudy );
   // create study context, if it doesn't exist and set current study
   int studyId = GetCurrentStudyID();
-  if ( myStudyContextMap.find( studyId ) == myStudyContextMap.end() ) {
+  if ( myStudyContextMap.find( studyId ) == myStudyContextMap.end() )
     myStudyContextMap[ studyId ] = new StudyContext;
-  }
 
   // myCurrentStudy may be nil
   if ( !theStudyIsBeingClosed && !CORBA::is_nil( myCurrentStudy ) ) {
     SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
-    if( !myCurrentStudy->FindComponent( "GEOM" )->_is_nil() )
-      aStudyBuilder->LoadWith( myCurrentStudy->FindComponent( "GEOM" ), GetGeomEngine() );
-
+    SALOMEDS::SComponent_wrap GEOM_var = myCurrentStudy->FindComponent( "GEOM" );
+    if( !GEOM_var->_is_nil() )
+      aStudyBuilder->LoadWith( GEOM_var, GetGeomEngine() );
     // NPAL16168, issue 0020210
     // Let meshes update their data depending on GEOM groups that could change
     if ( curStudyId != studyId )
     {
-      //SALOMEDS::SComponent_var me =  PublishComponent( myCurrentStudy );
-      SALOMEDS::SComponent_var me = SALOMEDS::SComponent::_narrow
-        ( myCurrentStudy->FindComponent( ComponentDataType() ) );
+      CORBA::String_var compDataType = ComponentDataType();
+      SALOMEDS::SComponent_wrap me = myCurrentStudy->FindComponent( compDataType.in() );
       if ( !me->_is_nil() ) {
-        SALOMEDS::ChildIterator_var anIter = myCurrentStudy->NewChildIterator( me );
+        SALOMEDS::ChildIterator_wrap anIter = myCurrentStudy->NewChildIterator( me );
         for ( ; anIter->More(); anIter->Next() ) {
-          SALOMEDS::SObject_var so = anIter->Value();
-          CORBA::Object_var    ior = SObjectToObject( so );
-          if ( SMESH_Mesh_i*  mesh = SMESH::DownCast<SMESH_Mesh_i*>( ior ))
-            mesh->CheckGeomGroupModif();
+          SALOMEDS::SObject_wrap so = anIter->Value();
+          CORBA::Object_var     ior = SObjectToObject( so );
+          if ( SMESH_Mesh_i*   mesh = SMESH::DownCast<SMESH_Mesh_i*>( ior ))
+            mesh->CheckGeomModif();
         }
       }
     }
@@ -681,7 +695,7 @@ SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::CreateHypothesis( const char* theHypNam
 
   // Publish hypothesis/algorithm in the study
   if ( CanPublishInStudy( hyp ) ) {
-    SALOMEDS::SObject_var aSO = PublishHypothesis( myCurrentStudy, hyp );
+    SALOMEDS::SObject_wrap aSO = PublishHypothesis( myCurrentStudy, hyp );
     if ( !aSO->_is_nil() ) {
       // Update Python script
       TPythonDump() << aSO << " = " << this << ".CreateHypothesis('"
@@ -745,9 +759,11 @@ SMESH_Gen_i::GetHypothesisParameterValues (const char*           theHypType,
       // check local shape
       SMESH::ListOfHypothesis_var aHypList = theMesh->GetHypothesisList( theGeom );
       int nbLocalHyps = aHypList->length();
-      for ( int i = 0; i < nbLocalHyps; i++ )
-        if ( strcmp( theHypType, aHypList[i]->GetName() ) == 0 ) // FOUND local!
+      for ( int i = 0; i < nbLocalHyps; i++ ) {
+        CORBA::String_var hypName = aHypList[i]->GetName();
+        if ( strcmp( theHypType, hypName.in() ) == 0 ) // FOUND local!
           return SMESH::SMESH_Hypothesis::_duplicate( aHypList[i] );
+      }
       // check super shapes
       TopTools_ListIteratorOfListOfShape itShape( mesh->GetAncestors( shape ));
       while ( nbLocalHyps == 0 && itShape.More() ) {
@@ -895,7 +911,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMesh( GEOM::GEOM_Object_ptr theShapeObj
   if ( CanPublishInStudy( mesh ) ) {
     SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
     aStudyBuilder->NewCommand();  // There is a transaction
-    SALOMEDS::SObject_var aSO = PublishMesh( myCurrentStudy, mesh.in() );
+    SALOMEDS::SObject_wrap aSO = PublishMesh( myCurrentStudy, mesh.in() );
     aStudyBuilder->CommitCommand();
     if ( !aSO->_is_nil() ) {
       // Update Python script
@@ -926,7 +942,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateEmptyMesh()
   if ( CanPublishInStudy( mesh ) ) {
     SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
     aStudyBuilder->NewCommand();  // There is a transaction
-    SALOMEDS::SObject_var aSO = PublishMesh( myCurrentStudy, mesh.in() );
+    SALOMEDS::SObject_wrap aSO = PublishMesh( myCurrentStudy, mesh.in() );
     aStudyBuilder->CommitCommand();
     if ( !aSO->_is_nil() ) {
       // Update Python script
@@ -957,7 +973,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMeshesFromUNV( const char* theFileName
   if ( CanPublishInStudy( aMesh ) ) {
     SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
     aStudyBuilder->NewCommand();  // There is a transaction
-    SALOMEDS::SObject_var aSO = PublishMesh( myCurrentStudy, aMesh.in(), aFileName.c_str() );
+    SALOMEDS::SObject_wrap aSO = PublishMesh( myCurrentStudy, aMesh.in(), aFileName.c_str() );
     aStudyBuilder->CommitCommand();
     if ( !aSO->_is_nil() ) {
       // Update Python script
@@ -989,6 +1005,13 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromMEDorSAUV( const char* theFileNa
                                                            const char* theCommandNameForPython,
                                                            const char* theFileNameForPython)
 {
+#ifdef WIN32
+  char bname[ _MAX_FNAME ];
+  _splitpath( theFileNameForPython, NULL, NULL, bname, NULL );
+  string aFileName = bname;
+#else
+  string aFileName = basename( theFileNameForPython );
+#endif
   // Retrieve mesh names from the file
   DriverMED_R_SMESHDS_Mesh myReader;
   myReader.SetFile( theFileName );
@@ -1019,9 +1042,12 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromMEDorSAUV( const char* theFileNa
       SMESH::SMESH_Mesh_var mesh = createMesh();
 
       // publish mesh in the study
-      SALOMEDS::SObject_var aSO;
+      SALOMEDS::SObject_wrap aSO;
       if ( CanPublishInStudy( mesh ) )
-        aSO = PublishMesh( myCurrentStudy, mesh.in(), (*it).c_str() );
+        // little trick: for MED file theFileName and theFileNameForPython are the same, but they are different for SAUV
+        // - as names of meshes are stored in MED file, we use them for data publishing
+        // - as mesh name is not stored in UNV file, we use file name as name of mesh when publishing data
+        aSO = PublishMesh( myCurrentStudy, mesh.in(), ( theFileName == theFileNameForPython ) ? (*it).c_str() : aFileName.c_str() );
       if ( !aSO->_is_nil() ) {
         // Python Dump
         aPythonDump << aSO;
@@ -1082,7 +1108,7 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromSAUV( const char* theFileName,
   std::string medfilename(theFileName);
   medfilename += ".med";
   std::string cmd;
-#ifdef WNT
+#ifdef WIN32
   cmd = "%PYTHONBIN% ";
 #else
   cmd = "python ";
@@ -1092,7 +1118,7 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromSAUV( const char* theFileName,
   cmd += "\"";
   system(cmd.c_str());
   SMESH::mesh_array* result = CreateMeshesFromMEDorSAUV(medfilename.c_str(), theStatus, "CreateMeshesFromSAUV", sauvfilename.c_str());
-#ifdef WNT
+#ifdef WIN32
   cmd = "%PYTHONBIN% ";
 #else
   cmd = "python ";
@@ -1119,12 +1145,19 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMeshesFromSTL( const char* theFileName
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::CreateMeshesFromSTL" );
 
   SMESH::SMESH_Mesh_var aMesh = createMesh();
-  string aFileName;
+  //string aFileName;
+#ifdef WIN32
+  char bname[ _MAX_FNAME ];
+  _splitpath( theFileName, NULL, NULL, bname, NULL );
+  string aFileName = bname;
+#else
+  string aFileName = basename( theFileName );
+#endif
   // publish mesh in the study
   if ( CanPublishInStudy( aMesh ) ) {
     SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
     aStudyBuilder->NewCommand();  // There is a transaction
-    SALOMEDS::SObject_var aSO = PublishInStudy
+    SALOMEDS::SObject_wrap aSO = PublishInStudy
       ( myCurrentStudy, SALOMEDS::SObject::_nil(), aMesh.in(), aFileName.c_str() );
     aStudyBuilder->CommitCommand();
     if ( !aSO->_is_nil() ) {
@@ -1198,15 +1231,17 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromCGNS( const char* theFileName,
 
         meshServant->GetImpl().GetMeshDS()->Modified();
         // publish mesh in the study
-        SALOMEDS::SObject_var aSO;
+        SALOMEDS::SObject_wrap aSO;
         if ( CanPublishInStudy( mesh ) )
           aSO = PublishMesh( myCurrentStudy, mesh.in(), meshName.c_str() );
 
         // Python Dump
-        if ( !aSO->_is_nil() )
+        if ( !aSO->_is_nil() ) {
           aPythonDump << aSO;
-        else
+        }
+        else {
           aPythonDump << "mesh_" << i;
+        }
       }
       aStudyBuilder->CommitCommand();
     }
@@ -1231,6 +1266,7 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromCGNS( const char* theFileName,
 
 SMESH::SMESH_Mesh_ptr
 SMESH_Gen_i::CreateMeshesFromGMF( const char*             theFileName,
+                                  CORBA::Boolean          theMakeRequiredGroups,
                                   SMESH::ComputeError_out theError)
     throw ( SALOME::SALOME_Exception )
 {
@@ -1248,17 +1284,19 @@ SMESH_Gen_i::CreateMeshesFromGMF( const char*             theFileName,
   if ( CanPublishInStudy( aMesh ) ) {
     SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
     aStudyBuilder->NewCommand();  // There is a transaction
-    SALOMEDS::SObject_var aSO = PublishInStudy
+    SALOMEDS::SObject_wrap aSO = PublishInStudy
       ( myCurrentStudy, SALOMEDS::SObject::_nil(), aMesh.in(), aFileName.c_str() );
     aStudyBuilder->CommitCommand();
     if ( !aSO->_is_nil() ) {
       // Update Python script
-      TPythonDump() << "("<< aSO << ", error) = " << this << ".CreateMeshesFromGMF(r'" << theFileName << "')";
+      TPythonDump() << "("<< aSO << ", error) = " << this << ".CreateMeshesFromGMF(r'"
+                    << theFileName << "', "
+                    << theMakeRequiredGroups << " )";
     }
   }
   SMESH_Mesh_i* aServant = dynamic_cast<SMESH_Mesh_i*>( GetServant( aMesh ).in() );
   ASSERT( aServant );
-  theError = aServant->ImportGMFFile( theFileName );
+  theError = aServant->ImportGMFFile( theFileName, theMakeRequiredGroups );
   aServant->GetImpl().GetMeshDS()->Modified();
   return aMesh._retn();
 }
@@ -1316,16 +1354,16 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::GetAlgoSO(const ::SMESH_Algo* algo)
   if ( algo ) {
     if ( !myCurrentStudy->_is_nil() ) {
       // find algo in the study
-      SALOMEDS::SComponent_var father = SALOMEDS::SComponent::_narrow
-        ( myCurrentStudy->FindComponent( ComponentDataType() ) );
+      CORBA::String_var compDataType  = ComponentDataType();
+      SALOMEDS::SComponent_wrap father = myCurrentStudy->FindComponent( compDataType.in() );
       if ( !father->_is_nil() ) {
-        SALOMEDS::ChildIterator_var itBig = myCurrentStudy->NewChildIterator( father );
+        SALOMEDS::ChildIterator_wrap itBig = myCurrentStudy->NewChildIterator( father );
         for ( ; itBig->More(); itBig->Next() ) {
-          SALOMEDS::SObject_var gotBranch = itBig->Value();
+          SALOMEDS::SObject_wrap gotBranch = itBig->Value();
           if ( gotBranch->Tag() == GetAlgorithmsRootTag() ) {
-            SALOMEDS::ChildIterator_var algoIt = myCurrentStudy->NewChildIterator( gotBranch );
+            SALOMEDS::ChildIterator_wrap algoIt = myCurrentStudy->NewChildIterator( gotBranch );
             for ( ; algoIt->More(); algoIt->Next() ) {
-              SALOMEDS::SObject_var algoSO = algoIt->Value();
+              SALOMEDS::SObject_wrap algoSO = algoIt->Value();
               CORBA::Object_var     algoIOR = SObjectToObject( algoSO );
               if ( !CORBA::is_nil( algoIOR )) {
                 SMESH_Hypothesis_i* impl = SMESH::DownCast<SMESH_Hypothesis_i*>( algoIOR );
@@ -1383,8 +1421,8 @@ SMESH::compute_error_array* SMESH_Gen_i::GetComputeErrors( SMESH::SMESH_Mesh_ptr
       while ( smIt->more() )
       {
         sm = smIt->next();
-        if ( sm->GetSubShape().ShapeType() == TopAbs_VERTEX )
-          break;
+        // if ( sm->GetSubShape().ShapeType() == TopAbs_VERTEX )
+        //   break;
         SMESH_ComputeErrorPtr error = sm->GetComputeError();
         if ( error && !error->IsOK() && error->myAlgo )
         {
@@ -1392,11 +1430,14 @@ SMESH::compute_error_array* SMESH_Gen_i::GetComputeErrors( SMESH::SMESH_Mesh_ptr
           errStruct.code       = -( error->myName < 0 ? error->myName + 1: error->myName ); // -1 -> 0
           errStruct.comment    = error->myComment.c_str();
           errStruct.subShapeID = sm->GetId();
-          SALOMEDS::SObject_var algoSO = GetAlgoSO( error->myAlgo );
-          if ( !algoSO->_is_nil() )
-            errStruct.algoName = algoSO->GetName();
-          else
+          SALOMEDS::SObject_wrap algoSO = GetAlgoSO( error->myAlgo );
+          if ( !algoSO->_is_nil() ) {
+            CORBA::String_var algoName = algoSO->GetName();
+            errStruct.algoName = algoName;
+          }
+          else {
             errStruct.algoName = error->myAlgo->GetName();
+          }
           errStruct.hasBadMesh = !error->myBadElements.empty();
         }
       }
@@ -1410,7 +1451,6 @@ SMESH::compute_error_array* SMESH_Gen_i::GetComputeErrors( SMESH::SMESH_Mesh_ptr
   return error_array._retn();
 }
 
-//
 //================================================================================
 /*!
  * \brief Return mesh elements preventing computation of a subshape
@@ -1496,6 +1536,40 @@ SMESH_Gen_i::GetBadInputElements( SMESH::SMESH_Mesh_ptr theMesh,
   return result._retn();
 }
 
+//================================================================================
+/*!
+ * \brief Create a group of elements preventing computation of a sub-shape
+ */
+//================================================================================
+
+SMESH::ListOfGroups*
+SMESH_Gen_i::MakeGroupsOfBadInputElements( SMESH::SMESH_Mesh_ptr theMesh,
+                                           CORBA::Short          theSubShapeID,
+                                           const char*           theGroupName )
+  throw ( SALOME::SALOME_Exception )
+{
+  Unexpect aCatch(SALOME_SalomeException);
+
+  SMESH::ListOfGroups_var groups;
+
+  if ( CORBA::is_nil( theMesh ) )
+    THROW_SALOME_CORBA_EXCEPTION( "bad Mesh reference",SALOME::BAD_PARAM );
+
+  try {
+    if ( SMESH_Mesh_i* meshServant = SMESH::DownCast<SMESH_Mesh_i*>( theMesh ))
+    {
+      groups = meshServant->MakeGroupsOfBadInputElements( theSubShapeID, theGroupName );
+      TPythonDump() << groups << " = " << this
+                    << ".MakeGroupsOfBadInputElements( "
+                    << theMesh << ", " << theSubShapeID << ", '" << theGroupName << "' )";
+    }
+  }
+  catch ( SALOME_Exception& S_ex ) {
+    INFOS( "catch exception "<< S_ex.what() );
+  }
+  return groups._retn();
+}
+
 //================================================================================
 /*!
  * \brief Returns errors of hypotheses definintion
@@ -1544,9 +1618,11 @@ SMESH::algo_error_array* SMESH_Gen_i::GetAlgoState( SMESH::SMESH_Mesh_ptr theMes
         errStruct.algoDim      = error->_algoDim;
         errStruct.isGlobalAlgo = error->_isGlobalAlgo;
         errStruct.algoName     = "";
-        SALOMEDS::SObject_var algoSO = GetAlgoSO( error->_algo );
-        if ( !algoSO->_is_nil() )
-          errStruct.algoName   = algoSO->GetName();
+        SALOMEDS::SObject_wrap algoSO = GetAlgoSO( error->_algo );
+        if ( !algoSO->_is_nil() ) {
+          CORBA::String_var algoName = algoSO->GetName();
+          errStruct.algoName = algoName.in();
+        }
       }
     }
   }
@@ -1643,7 +1719,7 @@ CORBA::Boolean SMESH_Gen_i::Compute( SMESH::SMESH_Mesh_ptr theMesh,
                                      GEOM::GEOM_Object_ptr theShapeObject )
      throw ( SALOME::SALOME_Exception )
 {
-  MEMOSTAT;
+  //MEMOSTAT;
   Unexpect aCatch(SALOME_SalomeException);
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::Compute" );
 
@@ -1666,7 +1742,7 @@ CORBA::Boolean SMESH_Gen_i::Compute( SMESH::SMESH_Mesh_ptr theMesh,
     ASSERT( meshServant );
     if ( meshServant ) {
       // NPAL16168: "geometrical group edition from a submesh don't modifiy mesh computation"
-      meshServant->CheckGeomGroupModif();
+      meshServant->CheckGeomModif();
       // get local TopoDS_Shape
       TopoDS_Shape myLocShape;
       if(theMesh->HasShapeToMesh())
@@ -1675,9 +1751,7 @@ CORBA::Boolean SMESH_Gen_i::Compute( SMESH::SMESH_Mesh_ptr theMesh,
         myLocShape = SMESH_Mesh::PseudoShape();
       // call implementation compute
       ::SMESH_Mesh& myLocMesh = meshServant->GetImpl();
-#ifdef WITH_SMESH_CANCEL_COMPUTE
       myGen.PrepareCompute( myLocMesh, myLocShape);
-#endif
       bool ok = myGen.Compute( myLocMesh, myLocShape);
       meshServant->CreateGroupServants(); // algos can create groups (issue 0020918)
       myLocMesh.GetMeshDS()->Modified();
@@ -1707,7 +1781,6 @@ CORBA::Boolean SMESH_Gen_i::Compute( SMESH::SMESH_Mesh_ptr theMesh,
 void SMESH_Gen_i::CancelCompute( SMESH::SMESH_Mesh_ptr theMesh,
                                  GEOM::GEOM_Object_ptr theShapeObject )
 {
-#ifdef WITH_SMESH_CANCEL_COMPUTE
   SMESH_Mesh_i* meshServant = dynamic_cast<SMESH_Mesh_i*>( GetServant( theMesh ).in() );
   ::SMESH_Mesh& myLocMesh = meshServant->GetImpl();
   TopoDS_Shape myLocShape;
@@ -1716,7 +1789,6 @@ void SMESH_Gen_i::CancelCompute( SMESH::SMESH_Mesh_ptr theMesh,
   else
     myLocShape = SMESH_Mesh::PseudoShape();
   myGen.CancelCompute( myLocMesh, myLocShape);
-#endif
 }
 
 //=============================================================================
@@ -1752,7 +1824,7 @@ SMESH::MeshPreviewStruct* SMESH_Gen_i::Precompute( SMESH::SMESH_Mesh_ptr theMesh
     ASSERT( meshServant );
     if ( meshServant ) {
       // NPAL16168: "geometrical group edition from a submesh don't modifiy mesh computation"
-      meshServant->CheckGeomGroupModif();
+      meshServant->CheckGeomModif();
       // get local TopoDS_Shape
       TopoDS_Shape myLocShape;
       if(theMesh->HasShapeToMesh())
@@ -1764,7 +1836,7 @@ SMESH::MeshPreviewStruct* SMESH_Gen_i::Precompute( SMESH::SMESH_Mesh_ptr theMesh
       ::SMESH_Mesh& myLocMesh = meshServant->GetImpl();
       TSetOfInt shapeIds;
       ::MeshDimension aDim = (MeshDimension)theDimension;
-      if ( myGen.Compute( myLocMesh, myLocShape, false, aDim, &shapeIds ) )
+      if ( myGen.Compute( myLocMesh, myLocShape, false, false, aDim, &shapeIds ) )
       {
         int nbShapeId = shapeIds.size();
         theShapesId.length( nbShapeId );
@@ -1948,7 +2020,7 @@ SMESH::long_array* SMESH_Gen_i::Evaluate(SMESH::SMESH_Mesh_ptr theMesh,
     ASSERT( meshServant );
     if ( meshServant ) {
       // NPAL16168: "geometrical group edition from a submesh don't modifiy mesh computation"
-      meshServant->CheckGeomGroupModif();
+      meshServant->CheckGeomModif();
       // get local TopoDS_Shape
       TopoDS_Shape myLocShape;
       if(theMesh->HasShapeToMesh())
@@ -2000,7 +2072,7 @@ SMESH::long_array* SMESH_Gen_i::Evaluate(SMESH::SMESH_Mesh_ptr theMesh,
  *  \param theMesh - the mesh the element is in
  *  \param theElementID - the element ID
  *  \param theGeomName - the name of the result geom object if it is not yet published
- *  \retval GEOM::GEOM_Object_ptr - the found or just published geom object
+ *  \retval GEOM::GEOM_Object_ptr - the found or just published geom object (no need to UnRegister())
  */
 //================================================================================
 
@@ -2012,31 +2084,34 @@ SMESH_Gen_i::GetGeometryByMeshElement( SMESH::SMESH_Mesh_ptr  theMesh,
 {
   Unexpect aCatch(SALOME_SalomeException);
 
-  GEOM::GEOM_Object_var geom = FindGeometryByMeshElement(theMesh, theElementID);
+  GEOM::GEOM_Object_wrap geom = FindGeometryByMeshElement(theMesh, theElementID);
   if ( !geom->_is_nil() ) {
     GEOM::GEOM_Object_var mainShape = theMesh->GetShapeToMesh();
     GEOM::GEOM_Gen_ptr    geomGen   = GetGeomEngine();
 
     // try to find the corresponding SObject
-    SALOMEDS::SObject_var SObj = ObjectToSObject( myCurrentStudy, geom.in() );
+    SALOMEDS::SObject_wrap SObj = ObjectToSObject( myCurrentStudy, geom.in() );
     if ( SObj->_is_nil() ) // submesh can be not found even if published
     {
       // try to find published submesh
       GEOM::ListOfLong_var list = geom->GetSubShapeIndices();
       if ( !geom->IsMainShape() && list->length() == 1 ) {
-        SALOMEDS::SObject_var mainSO = ObjectToSObject( myCurrentStudy, mainShape );
-        SALOMEDS::ChildIterator_var it;
-        if ( !mainSO->_is_nil() )
+        SALOMEDS::SObject_wrap mainSO = ObjectToSObject( myCurrentStudy, mainShape );
+        SALOMEDS::ChildIterator_wrap it;
+        if ( !mainSO->_is_nil() ) {
           it = myCurrentStudy->NewChildIterator( mainSO );
+        }
         if ( !it->_is_nil() ) {
-          for ( it->InitEx(true); SObj->_is_nil() && it->More(); it->Next() ) {
-            GEOM::GEOM_Object_var subGeom =
-              GEOM::GEOM_Object::_narrow( SObjectToObject( it->Value() ));
+          for ( it->InitEx(true); it->More(); it->Next() ) {
+            SALOMEDS::SObject_wrap      so = it->Value();
+            CORBA::Object_var         obj = SObjectToObject( so );
+            GEOM::GEOM_Object_var subGeom = GEOM::GEOM_Object::_narrow( obj );
             if ( !subGeom->_is_nil() ) {
               GEOM::ListOfLong_var subList = subGeom->GetSubShapeIndices();
               if ( subList->length() == 1 && list[0] == subList[0] ) {
-                SObj = it->Value();
+                SObj = so;
                 geom = subGeom;
+                break;
               }
             }
           }
@@ -2047,8 +2122,12 @@ SMESH_Gen_i::GetGeometryByMeshElement( SMESH::SMESH_Mesh_ptr  theMesh,
       SObj = geomGen->AddInStudy( myCurrentStudy, geom, theGeomName, mainShape );
 
     // return only published geometry
-    if ( !SObj->_is_nil() )
-      return geom._retn();
+    if ( !SObj->_is_nil() ) {
+      //return geom._retn(); -- servant of geom must be UnRegister()ed;
+      CORBA::Object_var    obj = SObjectToObject( SObj );
+      GEOM::GEOM_Object_var go = GEOM::GEOM_Object::_narrow( obj );
+      return go._retn();
+    }
   }
   return GEOM::GEOM_Object::_nil();
 }
@@ -2058,7 +2137,7 @@ SMESH_Gen_i::GetGeometryByMeshElement( SMESH::SMESH_Mesh_ptr  theMesh,
  * \brief Return geometrical object the given element is built on.
  *  \param theMesh - the mesh the element is in
  *  \param theElementID - the element ID
- *  \retval GEOM::GEOM_Object_ptr - the found geom object
+ *  \retval GEOM::GEOM_Object_ptr - the found or created (UnRegister()!) geom object
  */
 //================================================================================
 
@@ -2088,14 +2167,16 @@ SMESH_Gen_i::FindGeometryByMeshElement( SMESH::SMESH_Mesh_ptr  theMesh,
         GEOM::GEOM_Object_var geom = ShapeToGeomObject( meshDS->IndexToShape( shapeID ));
         if ( geom->_is_nil() ) {
           // try to find a published sub-shape
-          SALOMEDS::SObject_var mainSO = ObjectToSObject( myCurrentStudy, mainShape );
-          SALOMEDS::ChildIterator_var it;
-          if ( !mainSO->_is_nil() )
+          SALOMEDS::SObject_wrap mainSO = ObjectToSObject( myCurrentStudy, mainShape );
+          SALOMEDS::ChildIterator_wrap it;
+          if ( !mainSO->_is_nil() ) {
             it = myCurrentStudy->NewChildIterator( mainSO );
+          }
           if ( !it->_is_nil() ) {
             for ( it->InitEx(true); it->More(); it->Next() ) {
-              GEOM::GEOM_Object_var subGeom =
-                GEOM::GEOM_Object::_narrow( SObjectToObject( it->Value() ));
+              SALOMEDS::SObject_wrap      so = it->Value();
+              CORBA::Object_var         obj = SObjectToObject( so );
+              GEOM::GEOM_Object_var subGeom = GEOM::GEOM_Object::_narrow( obj );
               if ( !subGeom->_is_nil() ) {
                 GEOM::ListOfLong_var subList = subGeom->GetSubShapeIndices();
                 if ( subList->length() == 1 && shapeID == subList[0] ) {
@@ -2108,11 +2189,14 @@ SMESH_Gen_i::FindGeometryByMeshElement( SMESH::SMESH_Mesh_ptr  theMesh,
         }
         if ( geom->_is_nil() ) {
           // explode
-          GEOM::GEOM_IShapesOperations_var op =
+          GEOM::GEOM_IShapesOperations_wrap op =
             geomGen->GetIShapesOperations( GetCurrentStudyID() );
           if ( !op->_is_nil() )
             geom = op->GetSubShape( mainShape, shapeID );
         }
+        else {
+          geom->Register();
+        }
         if ( !geom->_is_nil() ) {
           GeomObjectToShape( geom ); // let geom client remember the found shape
           return geom._retn();
@@ -2213,6 +2297,7 @@ SMESH_Gen_i::ConcatenateCommon(const SMESH::mesh_array& theMeshesArray,
           SMESH_Mesh_i* anInitImpl = dynamic_cast<SMESH_Mesh_i*>( GetServant( anInitMesh ).in() );
           if ( anInitImpl ) {
             ::SMESH_Mesh& aInitLocMesh = anInitImpl->GetImpl();
+            aInitLocMesh.Load();
             SMESHDS_Mesh* anInitMeshDS = aInitLocMesh.GetMeshDS();
 
             TIDsMap nodesMap;
@@ -2309,7 +2394,7 @@ SMESH_Gen_i::ConcatenateCommon(const SMESH::mesh_array& theMeshesArray,
                   }
                 }
               }
-            }//elems loop
+            } //elems loop
 
             // copy orphan nodes
             SMDS_NodeIteratorPtr  itNodes = anInitMeshDS->nodesIterator();
@@ -2340,7 +2425,7 @@ SMESH_Gen_i::ConcatenateCommon(const SMESH::mesh_array& theMeshesArray,
             if ( theCommonGroups ) {
               for(aGroupType=SMESH::NODE;aGroupType<=SMESH::BALL;aGroupType=(SMESH::ElementType)(aGroupType+1)) {
                 string str = "Gr";
-                SALOMEDS::SObject_var aMeshSObj = ObjectToSObject( myCurrentStudy, anInitMesh );
+                SALOMEDS::SObject_wrap aMeshSObj = ObjectToSObject( myCurrentStudy, anInitMesh );
                 if(aMeshSObj)
                   str += aMeshSObj->GetName();
                 str += "_";
@@ -2411,8 +2496,8 @@ SMESH_Gen_i::ConcatenateCommon(const SMESH::mesh_array& theMeshesArray,
             }
 
             // check that current group name and type don't have identical ones in union mesh
-            for (int i = 0; i < aListOfGroups->length(); i++) {
-              aGroup = aListOfGroups[i];
+            for (int iG = 0; iG < aListOfGroups->length(); iG++) {
+              aGroup = aListOfGroups[iG];
               aListOfNewGroups.clear();
               aGroupType = aGroup->GetType();
               aGroupName = aGroup->GetName();
@@ -2507,7 +2592,7 @@ SMESH_Gen_i::ConcatenateCommon(const SMESH::mesh_array& theMeshesArray,
   }
 
   // IPAL21468 Change icon of compound because it need not be computed.
-  SALOMEDS::SObject_var aMeshSObj = ObjectToSObject( myCurrentStudy, aNewMesh );
+  SALOMEDS::SObject_wrap aMeshSObj = ObjectToSObject( myCurrentStudy, aNewMesh );
   SetPixMap( aMeshSObj, "ICON_SMESH_TREE_MESH" );
 
   if (aNewMeshDS)
@@ -2553,7 +2638,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CopyMesh(SMESH::SMESH_IDSource_ptr meshPart,
   SMESH_Mesh_i*       newMesh_i = SMESH::DownCast<SMESH_Mesh_i*>( newMesh );
   if ( !newMesh_i )
     THROW_SALOME_CORBA_EXCEPTION( "can't create a mesh", SALOME::INTERNAL_ERROR );
-  SALOMEDS::SObject_var meshSO = ObjectToSObject(myCurrentStudy, newMesh );
+  SALOMEDS::SObject_wrap meshSO = ObjectToSObject(myCurrentStudy, newMesh );
   if ( !meshSO->_is_nil() )
   {
     SetName( meshSO, meshName, "Mesh" );
@@ -2569,6 +2654,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CopyMesh(SMESH::SMESH_IDSource_ptr meshPart,
   SMESH::array_of_ElementType_var srcElemTypes = meshPart->GetTypes();
   if ( SMESH::DownCast<SMESH_Mesh_i*>( meshPart ))
   {
+    srcMesh_i->Load();
     srcElemIt = srcMeshDS->elementsIterator();
     srcNodeIt = srcMeshDS->nodesIterator();
   }
@@ -2635,10 +2721,15 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CopyMesh(SMESH::SMESH_IDSource_ptr meshPart,
       const SMDS_MeshElement * newElem;
       switch ( elem->GetEntityType() ) {
       case SMDSEntity_Polyhedra:
-        newElem = editor.GetMeshDS()->
-          AddPolyhedralVolumeWithID( nodes,
-                                     static_cast<const SMDS_VtkVolume*>(elem)->GetQuantities(),
-                                     ID);
+        if ( toKeepIDs )
+          newElem = editor.GetMeshDS()->
+            AddPolyhedralVolumeWithID( nodes,
+                                       static_cast<const SMDS_VtkVolume*>(elem)->GetQuantities(),
+                                       ID);
+        else
+          newElem = editor.GetMeshDS()->
+            AddPolyhedralVolume( nodes,
+                                 static_cast<const SMDS_VtkVolume*>(elem)->GetQuantities());
         break;
       case SMDSEntity_Ball:
         newElem = editor.AddElement( nodes, SMDSAbs_Ball, false, ID,
@@ -2814,8 +2905,7 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
   //  ASSERT( theComponent->GetStudy()->StudyId() == myCurrentStudy->StudyId() )
   // san -- in case <myCurrentStudy> differs from theComponent's study,
   // use that of the component
-  if ( myCurrentStudy->_is_nil() ||
-    theComponent->GetStudy()->StudyId() != myCurrentStudy->StudyId() )
+  if ( theComponent->GetStudy()->StudyId() != GetCurrentStudyID() )
     SetCurrentStudy( theComponent->GetStudy() );
 
   // Store study contents as a set of python commands
@@ -2858,7 +2948,7 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
 
 
   //Remove the files if they exist: BugID: 11225
-#ifndef WNT /* unix functionality */
+#ifndef WIN32 /* unix functionality */
   TCollection_AsciiString cmd("rm -f \"");
 #else /* windows */
   TCollection_AsciiString cmd("del /F \"");
@@ -2878,9 +2968,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
   // SetStoreName() to groups before storing hypotheses to let them refer to
   // groups using "store name", which is "Group <group_persistent_id>"
   {
-    SALOMEDS::ChildIterator_var itBig = myCurrentStudy->NewChildIterator( theComponent );
+    SALOMEDS::ChildIterator_wrap itBig = myCurrentStudy->NewChildIterator( theComponent );
     for ( ; itBig->More(); itBig->Next() ) {
-      SALOMEDS::SObject_var gotBranch = itBig->Value();
+      SALOMEDS::SObject_wrap gotBranch = itBig->Value();
       if ( gotBranch->Tag() > GetAlgorithmsRootTag() ) {
         CORBA::Object_var anObject = SObjectToObject( gotBranch );
         if ( !CORBA::is_nil( anObject ) ) {
@@ -2915,9 +3005,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
   aFile->CreateOnDisk();
 
   // --> iterator for top-level objects
-  SALOMEDS::ChildIterator_var itBig = myCurrentStudy->NewChildIterator( theComponent );
+  SALOMEDS::ChildIterator_wrap itBig = myCurrentStudy->NewChildIterator( theComponent );
   for ( ; itBig->More(); itBig->Next() ) {
-    SALOMEDS::SObject_var gotBranch = itBig->Value();
+    SALOMEDS::SObject_wrap gotBranch = itBig->Value();
 
     // --> hypotheses root branch (only one for the study)
     if ( gotBranch->Tag() == GetHypothesisRootTag() ) {
@@ -2926,9 +3016,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
       aTopGroup->CreateOnDisk();
 
       // iterator for all hypotheses
-      SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( gotBranch );
+      SALOMEDS::ChildIterator_wrap it = myCurrentStudy->NewChildIterator( gotBranch );
       for ( ; it->More(); it->Next() ) {
-        SALOMEDS::SObject_var mySObject = it->Value();
+        SALOMEDS::SObject_wrap mySObject = it->Value();
         CORBA::Object_var anObject = SObjectToObject( mySObject );
         if ( !CORBA::is_nil( anObject ) ) {
           SMESH::SMESH_Hypothesis_var myHyp = SMESH::SMESH_Hypothesis::_narrow( anObject );
@@ -2939,9 +3029,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
               string libname = string( myHyp->GetLibName() );
               // BUG SWP13062
               // Needs for save crossplatform libname, i.e. parth of name ( ".dll" for
-              // WNT and ".so" for X-system) must be deleted
+              // WIN32 and ".so" for X-system) must be deleted
               int libname_len = libname.length();
-#ifdef WNT
+#ifdef WIN32
               if( libname_len > 4 )
                 libname.resize( libname_len - 4 );
 #else
@@ -2995,9 +3085,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
       aTopGroup->CreateOnDisk();
 
       // iterator for all algorithms
-      SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( gotBranch );
+      SALOMEDS::ChildIterator_wrap it = myCurrentStudy->NewChildIterator( gotBranch );
       for ( ; it->More(); it->Next() ) {
-        SALOMEDS::SObject_var mySObject = it->Value();
+        SALOMEDS::SObject_wrap mySObject = it->Value();
         CORBA::Object_var anObject = SObjectToObject( mySObject );
         if ( !CORBA::is_nil( anObject ) ) {
           SMESH::SMESH_Hypothesis_var myHyp = SMESH::SMESH_Hypothesis::_narrow( anObject );
@@ -3008,9 +3098,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
               string libname = string( myHyp->GetLibName() );
               // BUG SWP13062
               // Needs for save crossplatform libname, i.e. parth of name ( ".dll" for
-              // WNT and ".so" for X-system) must be deleted
+              // WIN32 and ".so" for X-system) must be deleted
               int libname_len = libname.length();
-#ifdef WNT
+#ifdef WIN32
               if( libname_len > 4 )
                 libname.resize( libname_len - 4 );
 #else
@@ -3121,12 +3211,12 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
             aDataset->CloseOnDisk();
 
             // write reference on a shape if exists
-            SALOMEDS::SObject_var myRef;
+            SALOMEDS::SObject_wrap myRef;
             bool shapeRefFound = false;
-            bool found = gotBranch->FindSubObject( GetRefOnShapeTag(), myRef );
+            bool found = gotBranch->FindSubObject( GetRefOnShapeTag(), myRef.inout() );
             if ( found ) {
-              SALOMEDS::SObject_var myShape;
-              bool ok = myRef->ReferencedObject( myShape );
+              SALOMEDS::SObject_wrap myShape;
+              bool ok = myRef->ReferencedObject( myShape.inout() );
               if ( ok ) {
                 shapeRefFound = (! CORBA::is_nil( myShape->GetObject() ));
                 string myRefOnObject = myShape->GetID();
@@ -3141,8 +3231,8 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
             }
 
             // write applied hypotheses if exist
-            SALOMEDS::SObject_var myHypBranch;
-            found = gotBranch->FindSubObject( GetRefOnAppliedHypothesisTag(), myHypBranch );
+            SALOMEDS::SObject_wrap myHypBranch;
+            found = gotBranch->FindSubObject( GetRefOnAppliedHypothesisTag(), myHypBranch.inout() );
             if ( found && !shapeRefFound && hasShape) { // remove applied hyps
               myCurrentStudy->NewBuilder()->RemoveObjectWithChildren( myHypBranch );
             }
@@ -3150,12 +3240,12 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
               aGroup = new HDFgroup( "Applied Hypotheses", aTopGroup );
               aGroup->CreateOnDisk();
 
-              SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( myHypBranch );
+              SALOMEDS::ChildIterator_wrap it = myCurrentStudy->NewChildIterator( myHypBranch );
               int hypNb = 0;
               for ( ; it->More(); it->Next() ) {
-                SALOMEDS::SObject_var mySObject = it->Value();
-                SALOMEDS::SObject_var myRefOnHyp;
-                bool ok = mySObject->ReferencedObject( myRefOnHyp );
+                SALOMEDS::SObject_wrap mySObject = it->Value();
+                SALOMEDS::SObject_wrap myRefOnHyp;
+                bool ok = mySObject->ReferencedObject( myRefOnHyp.inout() );
                 if ( ok ) {
                   // san - it is impossible to recover applied hypotheses
                   //       using their entries within Load() method,
@@ -3184,8 +3274,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
             }
 
             // write applied algorithms if exist
-            SALOMEDS::SObject_var myAlgoBranch;
-            found = gotBranch->FindSubObject( GetRefOnAppliedAlgorithmsTag(), myAlgoBranch );
+            SALOMEDS::SObject_wrap myAlgoBranch;
+            found = gotBranch->FindSubObject( GetRefOnAppliedAlgorithmsTag(),
+                                              myAlgoBranch.inout() );
             if ( found && !shapeRefFound && hasShape) { // remove applied algos
               myCurrentStudy->NewBuilder()->RemoveObjectWithChildren( myAlgoBranch );
             }
@@ -3193,12 +3284,12 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
               aGroup = new HDFgroup( "Applied Algorithms", aTopGroup );
               aGroup->CreateOnDisk();
 
-              SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( myAlgoBranch );
+              SALOMEDS::ChildIterator_wrap it = myCurrentStudy->NewChildIterator( myAlgoBranch );
               int algoNb = 0;
               for ( ; it->More(); it->Next() ) {
-                SALOMEDS::SObject_var mySObject = it->Value();
-                SALOMEDS::SObject_var myRefOnAlgo;
-                bool ok = mySObject->ReferencedObject( myRefOnAlgo );
+                SALOMEDS::SObject_wrap mySObject = it->Value();
+                SALOMEDS::SObject_wrap myRefOnAlgo;
+                bool ok = mySObject->ReferencedObject( myRefOnAlgo.inout() );
                 if ( ok ) {
                   // san - it is impossible to recover applied algorithms
                   //       using their entries within Load() method,
@@ -3229,18 +3320,18 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
             // --> submesh objects sub-branches
 
             for ( int i = GetSubMeshOnVertexTag(); i <= GetSubMeshOnCompoundTag(); i++ ) {
-              SALOMEDS::SObject_var mySubmeshBranch;
-              found = gotBranch->FindSubObject( i, mySubmeshBranch );
+              SALOMEDS::SObject_wrap mySubmeshBranch;
+              found = gotBranch->FindSubObject( i, mySubmeshBranch.inout() );
 
               if ( found ) // check if there is shape reference in submeshes
               {
                 bool hasShapeRef = false;
-                SALOMEDS::ChildIterator_var itSM =
+                SALOMEDS::ChildIterator_wrap itSM =
                   myCurrentStudy->NewChildIterator( mySubmeshBranch );
                 for ( ; itSM->More(); itSM->Next() ) {
-                  SALOMEDS::SObject_var mySubRef, myShape, mySObject = itSM->Value();
-                  if ( mySObject->FindSubObject( GetRefOnShapeTag(), mySubRef ))
-                    mySubRef->ReferencedObject( myShape );
+                  SALOMEDS::SObject_wrap mySubRef, myShape, mySObject = itSM->Value();
+                  if ( mySObject->FindSubObject( GetRefOnShapeTag(), mySubRef.inout() ))
+                    mySubRef->ReferencedObject( myShape.inout() );
                   if ( !CORBA::is_nil( myShape ) && !CORBA::is_nil( myShape->GetObject() ))
                     hasShapeRef = true;
                   else
@@ -3291,9 +3382,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                 aGroup->CreateOnDisk();
 
                 // iterator for all submeshes of given type
-                SALOMEDS::ChildIterator_var itSM = myCurrentStudy->NewChildIterator( mySubmeshBranch );
+                SALOMEDS::ChildIterator_wrap itSM = myCurrentStudy->NewChildIterator( mySubmeshBranch );
                 for ( ; itSM->More(); itSM->Next() ) {
-                  SALOMEDS::SObject_var mySObject = itSM->Value();
+                  SALOMEDS::SObject_wrap mySObject = itSM->Value();
                   CORBA::Object_var anSubObject = SObjectToObject( mySObject );
                   if ( !CORBA::is_nil( anSubObject ))
                   {
@@ -3308,9 +3399,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                     aSubGroup->CreateOnDisk();
 
                     // write reference on a shape, already checked if it exists
-                    SALOMEDS::SObject_var mySubRef, myShape;
-                    if ( mySObject->FindSubObject( GetRefOnShapeTag(), mySubRef ))
-                      mySubRef->ReferencedObject( myShape );
+                    SALOMEDS::SObject_wrap mySubRef, myShape;
+                    if ( mySObject->FindSubObject( GetRefOnShapeTag(), mySubRef.inout() ))
+                      mySubRef->ReferencedObject( myShape.inout() );
                     string myRefOnObject = myShape->GetID();
                     if ( myRefOnObject.length() > 0 ) {
                       aSize[ 0 ] = myRefOnObject.length() + 1;
@@ -3321,18 +3412,19 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                     }
 
                     // write applied hypotheses if exist
-                    SALOMEDS::SObject_var mySubHypBranch;
-                    found = mySObject->FindSubObject( GetRefOnAppliedHypothesisTag(), mySubHypBranch );
+                    SALOMEDS::SObject_wrap mySubHypBranch;
+                    found = mySObject->FindSubObject( GetRefOnAppliedHypothesisTag(),
+                                                      mySubHypBranch.inout() );
                     if ( found ) {
                       aSubSubGroup = new HDFgroup( "Applied Hypotheses", aSubGroup );
                       aSubSubGroup->CreateOnDisk();
 
-                      SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( mySubHypBranch );
+                      SALOMEDS::ChildIterator_wrap it = myCurrentStudy->NewChildIterator( mySubHypBranch );
                       int hypNb = 0;
                       for ( ; it->More(); it->Next() ) {
-                        SALOMEDS::SObject_var mySubSObject = it->Value();
-                        SALOMEDS::SObject_var myRefOnHyp;
-                        bool ok = mySubSObject->ReferencedObject( myRefOnHyp );
+                        SALOMEDS::SObject_wrap mySubSObject = it->Value();
+                        SALOMEDS::SObject_wrap myRefOnHyp;
+                        bool ok = mySubSObject->ReferencedObject( myRefOnHyp.inout() );
                         if ( ok ) {
                           //string myRefOnObject = myRefOnHyp->GetID();
                           CORBA::Object_var anObject = SObjectToObject( myRefOnHyp );
@@ -3356,18 +3448,20 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                     }
 
                     // write applied algorithms if exist
-                    SALOMEDS::SObject_var mySubAlgoBranch;
-                    found = mySObject->FindSubObject( GetRefOnAppliedAlgorithmsTag(), mySubAlgoBranch );
+                    SALOMEDS::SObject_wrap mySubAlgoBranch;
+                    found = mySObject->FindSubObject( GetRefOnAppliedAlgorithmsTag(),
+                                                      mySubAlgoBranch.inout() );
                     if ( found ) {
                       aSubSubGroup = new HDFgroup( "Applied Algorithms", aSubGroup );
                       aSubSubGroup->CreateOnDisk();
 
-                      SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( mySubAlgoBranch );
+                      SALOMEDS::ChildIterator_wrap it =
+                        myCurrentStudy->NewChildIterator( mySubAlgoBranch );
                       int algoNb = 0;
                       for ( ; it->More(); it->Next() ) {
-                        SALOMEDS::SObject_var mySubSObject = it->Value();
-                        SALOMEDS::SObject_var myRefOnAlgo;
-                        bool ok = mySubSObject->ReferencedObject( myRefOnAlgo );
+                        SALOMEDS::SObject_wrap mySubSObject = it->Value();
+                        SALOMEDS::SObject_wrap myRefOnAlgo;
+                        bool ok = mySubSObject->ReferencedObject( myRefOnAlgo.inout() );
                         if ( ok ) {
                           //string myRefOnObject = myRefOnAlgo->GetID();
                           CORBA::Object_var anObject = SObjectToObject( myRefOnAlgo );
@@ -3437,9 +3531,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
             }
 
             // groups root sub-branch
-            SALOMEDS::SObject_var myGroupsBranch;
+            SALOMEDS::SObject_wrap myGroupsBranch;
             for ( int i = GetNodeGroupsTag(); i <= GetBallElementsGroupsTag(); i++ ) {
-              found = gotBranch->FindSubObject( i, myGroupsBranch );
+              found = gotBranch->FindSubObject( i, myGroupsBranch.inout() );
               if ( found ) {
                 char name_group[ 30 ];
                 if ( i == GetNodeGroupsTag() )
@@ -3458,9 +3552,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                 aGroup = new HDFgroup( name_group, aTopGroup );
                 aGroup->CreateOnDisk();
 
-                SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( myGroupsBranch );
+                SALOMEDS::ChildIterator_wrap it = myCurrentStudy->NewChildIterator( myGroupsBranch );
                 for ( ; it->More(); it->Next() ) {
-                  SALOMEDS::SObject_var mySObject = it->Value();
+                  SALOMEDS::SObject_wrap mySObject = it->Value();
                   CORBA::Object_var aSubObject = SObjectToObject( mySObject );
                   if ( !CORBA::is_nil( aSubObject ) ) {
                     SMESH_GroupBase_i* myGroupImpl =
@@ -3510,9 +3604,9 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                     SMESHDS_GroupOnGeom* aGeomGrp =
                       dynamic_cast<SMESHDS_GroupOnGeom*>( aGrpBaseDS );
                     if ( aGeomGrp ) {
-                      SALOMEDS::SObject_var mySubRef, myShape;
-                      if (mySObject->FindSubObject( GetRefOnShapeTag(), mySubRef ) &&
-                          mySubRef->ReferencedObject( myShape ) &&
+                      SALOMEDS::SObject_wrap mySubRef, myShape;
+                      if (mySObject->FindSubObject( GetRefOnShapeTag(), mySubRef.inout() ) &&
+                          mySubRef->ReferencedObject( myShape.inout() ) &&
                           !CORBA::is_nil( myShape->GetObject() ))
                       {
                         string myRefOnObject = myShape->GetID();
@@ -3574,63 +3668,67 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                 // so for each node/element, we store a submesh ID
 
                 // Make maps of submesh IDs of elements sorted by element IDs
-                typedef int TElemID;
-                typedef int TSubMID;
-                map< TElemID, TSubMID > eId2smId, nId2smId;
-                map< TElemID, TSubMID >::iterator hint; // insertion to map is done before hint
+                // typedef int TElemID;
+                // typedef int TSubMID;
+                // map< TElemID, TSubMID > eId2smId, nId2smId;
                 const map<int,SMESHDS_SubMesh*>& aSubMeshes = mySMESHDSMesh->SubMeshes();
                 map<int,SMESHDS_SubMesh*>::const_iterator itSubM ( aSubMeshes.begin() );
-                SMDS_NodeIteratorPtr itNode;
-                SMDS_ElemIteratorPtr itElem;
-                for ( itSubM = aSubMeshes.begin(); itSubM != aSubMeshes.end() ; itSubM++ )
-                {
-                  TSubMID          aSubMeID = itSubM->first;
-                  SMESHDS_SubMesh* aSubMesh = itSubM->second;
-                  if ( aSubMesh->IsComplexSubmesh() )
-                    continue; // submesh containing other submeshs
-                  // nodes
-                  hint = nId2smId.begin(); // optimize insertion basing on increasing order of elem Ids in submesh
-                  for ( itNode = aSubMesh->GetNodes(); itNode->more(); ++hint)
-                    hint = nId2smId.insert( hint, make_pair( itNode->next()->GetID(), aSubMeID ));
-                  // elements
-                  hint = eId2smId.begin();
-                  for ( itElem = aSubMesh->GetElements(); itElem->more(); ++hint)
-                    hint = eId2smId.insert( hint, make_pair( itElem->next()->GetID(), aSubMeID ));
-                }
-
-                // Care of elements that are not on submeshes
-                if ( mySMESHDSMesh->NbNodes() != nId2smId.size() ) {
-                  for ( itNode = mySMESHDSMesh->nodesIterator(); itNode->more(); )
-                    /*  --- stl_map.h says : */
-                    /*  A %map relies on unique keys and thus a %pair is only inserted if its */
-                    /*  first element (the key) is not already present in the %map.           */
-                    nId2smId.insert( make_pair( itNode->next()->GetID(), 0 ));
-                }
-                int nbElems = mySMESHDSMesh->NbEdges() + mySMESHDSMesh->NbFaces() + mySMESHDSMesh->NbVolumes();
-                if ( nbElems != eId2smId.size() ) {
-                  for ( itElem = mySMESHDSMesh->elementsIterator(); itElem->more(); )
-                    eId2smId.insert( make_pair( itElem->next()->GetID(), 0 ));
-                }
+                // SMDS_NodeIteratorPtr itNode;
+                // SMDS_ElemIteratorPtr itElem;
+                // for ( itSubM = aSubMeshes.begin(); itSubM != aSubMeshes.end() ; itSubM++ )
+                // {
+                //   TSubMID          aSubMeID = itSubM->first;
+                //   SMESHDS_SubMesh* aSubMesh = itSubM->second;
+                //   if ( aSubMesh->IsComplexSubmesh() )
+                //     continue; // sub-mesh containing other sub-meshes
+                //   // nodes
+                //   for ( itNode = aSubMesh->GetNodes(); itNode->more(); ++hint)
+                //     nId2smId.insert( nId2smId.back(), make_pair( itNode->next()->GetID(), aSubMeID ));
+                //   // elements
+                //   for ( itElem = aSubMesh->GetElements(); itElem->more(); ++hint)
+                //     hint = eId2smId.insert( eId2smId.back(), make_pair( itElem->next()->GetID(), aSubMeID ));
+                // }
+
+                // // Care of elements that are not on submeshes
+                // if ( mySMESHDSMesh->NbNodes() != nId2smId.size() ) {
+                //   for ( itNode = mySMESHDSMesh->nodesIterator(); itNode->more(); )
+                //     /*  --- stl_map.h says : */
+                //     /*  A %map relies on unique keys and thus a %pair is only inserted if its */
+                //     /*  first element (the key) is not already present in the %map.           */
+                //     nId2smId.insert( make_pair( itNode->next()->GetID(), 0 ));
+                // }
+                // int nbElems = mySMESHDSMesh->GetMeshInfo().NbElements();
+                // if ( nbElems != eId2smId.size() ) {
+                //   for ( itElem = mySMESHDSMesh->elementsIterator(); itElem->more(); )
+                //     eId2smId.insert( make_pair( itElem->next()->GetID(), 0 ));
+                // }
 
                 // Store submesh IDs
                 for ( int isNode = 0; isNode < 2; ++isNode )
                 {
-                  map< TElemID, TSubMID >& id2smId = isNode ? nId2smId : eId2smId;
-                  if ( id2smId.empty() ) continue;
-                  map< TElemID, TSubMID >::const_iterator id_smId = id2smId.begin();
-                  // make and fill array of submesh IDs
-                  int* smIDs = new int [ id2smId.size() ];
-                  for ( int i = 0; id_smId != id2smId.end(); ++id_smId, ++i )
-                    smIDs[ i ] = id_smId->second;
+                  // map< TElemID, TSubMID >& id2smId = isNode ? nId2smId : eId2smId;
+                  // if ( id2smId.empty() ) continue;
+                  // map< TElemID, TSubMID >::const_iterator id_smId = id2smId.begin();
+                  // // make and fill array of submesh IDs
+                  // int* smIDs = new int [ id2smId.size() ];
+                  // for ( int i = 0; id_smId != id2smId.end(); ++id_smId, ++i )
+                  //   smIDs[ i ] = id_smId->second;
+                  SMDS_ElemIteratorPtr eIt =
+                    mySMESHDSMesh->elementsIterator( isNode ? SMDSAbs_Node : SMDSAbs_All );
+                  int nbElems = isNode ? mySMESHDSMesh->NbNodes() : mySMESHDSMesh->GetMeshInfo().NbElements();
+                  if ( nbElems < 1 )
+                    continue;
+                  std::vector<int> smIDs; smIDs.reserve( nbElems );
+                  while ( eIt->more() )
+                    if ( const SMDS_MeshElement* e = eIt->next())
+                      smIDs.push_back( e->getshapeId() );
                   // write HDF group
-                  aSize[ 0 ] = id2smId.size();
+                  aSize[ 0 ] = nbElems;
                   string aDSName( isNode ? "Node Submeshes" : "Element Submeshes");
                   aDataset = new HDFdataset( (char*)aDSName.c_str(), aGroup, HDF_INT32, aSize, 1 );
                   aDataset->CreateOnDisk();
-                  aDataset->WriteOnDisk( smIDs );
+                  aDataset->WriteOnDisk( & smIDs[0] );
                   aDataset->CloseOnDisk();
-                  //
-                  delete[] smIDs;
                 }
 
                 aGroup->CloseOnDisk();
@@ -3856,8 +3954,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
 {
   INFOS( "SMESH_Gen_i::Load" );
 
-  if ( myCurrentStudy->_is_nil() ||
-       theComponent->GetStudy()->StudyId() != myCurrentStudy->StudyId() )
+  if ( theComponent->GetStudy()->StudyId() != GetCurrentStudyID() )
     SetCurrentStudy( theComponent->GetStudy() );
 
   /*  if( !theComponent->_is_nil() )
@@ -3871,24 +3968,25 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
 
   // Get temporary files location
   TCollection_AsciiString tmpDir =
-    isMultiFile ? TCollection_AsciiString( ( char* )theURL ) : ( char* )SALOMEDS_Tool::GetTmpDir().c_str();
+    ( char* )( isMultiFile ? theURL : SALOMEDS_Tool::GetTmpDir().c_str() );
 
-    INFOS( "THE URL++++++++++++++" )
-    INFOS( theURL );
-    INFOS( "THE TMP PATH+++++++++" );
-    INFOS( tmpDir );
+  INFOS( "THE URL++++++++++++++" );
+  INFOS( theURL );
+  INFOS( "THE TMP PATH+++++++++" );
+  INFOS( tmpDir );
 
   // Convert the stream into sequence of files to process
   SALOMEDS::ListOfFileNames_var aFileSeq = SALOMEDS_Tool::PutStreamToFiles( theStream,
                                                                             tmpDir.ToCString(),
                                                                             isMultiFile );
   TCollection_AsciiString aStudyName( "" );
-  if ( isMultiFile )
-    aStudyName = ( (char*)SALOMEDS_Tool::GetNameFromPath( myCurrentStudy->URL() ).c_str() );
-
+  if ( isMultiFile ) {
+    CORBA::String_var url = myCurrentStudy->URL();
+    aStudyName = (char*)SALOMEDS_Tool::GetNameFromPath( url.in() ).c_str();
+  }
   // Set names of temporary files
-  TCollection_AsciiString filename = tmpDir + aStudyName + TCollection_AsciiString( "_SMESH.hdf" );
-  TCollection_AsciiString meshfile = tmpDir + aStudyName + TCollection_AsciiString( "_SMESH_Mesh.med" );
+  TCollection_AsciiString filename = tmpDir + aStudyName + "_SMESH.hdf";
+  TCollection_AsciiString meshfile = tmpDir + aStudyName + "_SMESH_Mesh.med";
 
   int size;
   HDFfile*    aFile;
@@ -4015,8 +4113,8 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
             if ( myImpl ) {
               // myImpl->LoadFrom( hypdata.c_str() );
               hypDataList.push_back( make_pair( myImpl, hypdata ));
-              string iorString = GetORB()->object_to_string( myHyp );
-              int newId = myStudyContext->findId( iorString );
+              CORBA::String_var iorString = GetORB()->object_to_string( myHyp );
+              int newId = myStudyContext->findId( iorString.in() );
               myStudyContext->mapOldToNew( id, newId );
             }
             else
@@ -4115,8 +4213,8 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
             if ( myImpl ) {
               //myImpl->LoadFrom( hypdata.c_str() );
               hypDataList.push_back( make_pair( myImpl, hypdata ));
-              string iorString = GetORB()->object_to_string( myHyp );
-              int newId = myStudyContext->findId( iorString );
+              CORBA::String_var iorString = GetORB()->object_to_string( myHyp );
+              int newId = myStudyContext->findId( iorString.in() );
               myStudyContext->mapOldToNew( id, newId );
             }
             else
@@ -4156,8 +4254,8 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
             continue;
           meshGroupList.push_back( make_pair( myNewMeshImpl, aTopGroup ));
 
-          string iorString = GetORB()->object_to_string( myNewMesh );
-          int newId = myStudyContext->findId( iorString );
+          CORBA::String_var iorString = GetORB()->object_to_string( myNewMesh );
+          int newId = myStudyContext->findId( iorString.in() );
           myStudyContext->mapOldToNew( id, newId );
 
           // ouv : NPAL12872
@@ -4173,6 +4271,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
             aDataset->ReadFromDisk( anAutoColor );
             aDataset->CloseOnDisk();
             myNewMeshImpl->GetImpl().SetAutoColor( (bool)anAutoColor[0] );
+            delete [] anAutoColor;
           }
 
           // try to read and set reference to shape
@@ -4186,7 +4285,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
             aDataset->ReadFromDisk( refFromFile );
             aDataset->CloseOnDisk();
             if ( strlen( refFromFile ) > 0 ) {
-              SALOMEDS::SObject_var shapeSO = myCurrentStudy->FindObjectID( refFromFile );
+              SALOMEDS::SObject_wrap shapeSO = myCurrentStudy->FindObjectID( refFromFile );
 
               // Make sure GEOM data are loaded first
               //loadGeomData( shapeSO->GetFatherComponent() );
@@ -4198,6 +4297,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
                   myNewMeshImpl->SetShape( aShapeObject );
               }
             }
+            delete [] refFromFile;
           }
 
           // issue 20918. Restore Persistent Id of SMESHDS_Mesh
@@ -4210,6 +4310,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
             aDataset->ReadFromDisk( meshPersistentId );
             aDataset->CloseOnDisk();
             myNewMeshImpl->GetImpl().GetMeshDS()->SetPersistentId( *meshPersistentId );
+            delete [] meshPersistentId;
           }
         }
       }
@@ -4240,8 +4341,8 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
       bool hasData = false;
 
       // get mesh old id
-      string iorString = GetORB()->object_to_string( myNewMeshImpl->_this() );
-      int newId = myStudyContext->findId( iorString );
+      CORBA::String_var iorString = GetORB()->object_to_string( myNewMeshImpl->_this() );
+      int newId = myStudyContext->findId( iorString.in() );
       int id = myStudyContext->getOldId( newId );
 
       // try to find mesh data dataset
@@ -4260,6 +4361,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
           // myReader.Perform();
           hasData = true;
         }
+        delete [] strHasData;
       }
 
       // Try to get applied ALGORITHMS (mesh is not cleared by algo addition because
@@ -4282,9 +4384,10 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
             aDataset->ReadFromDisk( refFromFile );
             aDataset->CloseOnDisk();
             // san - it is impossible to recover applied algorithms using their entries within Load() method
-            //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
+            //SALOMEDS::SObject_wrap hypSO = myCurrentStudy->FindObjectID( refFromFile );
             //CORBA::Object_var hypObject = SObjectToObject( hypSO );
             int id = atoi( refFromFile );
+            delete [] refFromFile;
             string anIOR = myStudyContext->getIORbyOldId( id );
             if ( !anIOR.empty() ) {
               CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
@@ -4318,9 +4421,10 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
             aDataset->ReadFromDisk( refFromFile );
             aDataset->CloseOnDisk();
             // san - it is impossible to recover applied hypotheses using their entries within Load() method
-            //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
+            //SALOMEDS::SObject_wrap hypSO = myCurrentStudy->FindObjectID( refFromFile );
             //CORBA::Object_var hypObject = SObjectToObject( hypSO );
             int id = atoi( refFromFile );
+            delete [] refFromFile;
             string anIOR = myStudyContext->getIORbyOldId( id );
             if ( !anIOR.empty() ) {
               CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
@@ -4338,21 +4442,21 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
 
       // --> try to find SUB-MESHES containers for each type of submesh
       for ( int j = GetSubMeshOnVertexTag(); j <= GetSubMeshOnCompoundTag(); j++ ) {
-        char name_meshgroup[ 30 ];
+        const char* name_meshgroup;
         if ( j == GetSubMeshOnVertexTag() )
-          strcpy( name_meshgroup, "SubMeshes On Vertex" );
+          name_meshgroup = "SubMeshes On Vertex";
         else if ( j == GetSubMeshOnEdgeTag() )
-          strcpy( name_meshgroup, "SubMeshes On Edge" );
+          name_meshgroup = "SubMeshes On Edge";
         else if ( j == GetSubMeshOnWireTag() )
-          strcpy( name_meshgroup, "SubMeshes On Wire" );
+          name_meshgroup = "SubMeshes On Wire";
         else if ( j == GetSubMeshOnFaceTag() )
-          strcpy( name_meshgroup, "SubMeshes On Face" );
+          name_meshgroup = "SubMeshes On Face";
         else if ( j == GetSubMeshOnShellTag() )
-          strcpy( name_meshgroup, "SubMeshes On Shell" );
+          name_meshgroup = "SubMeshes On Shell";
         else if ( j == GetSubMeshOnSolidTag() )
-          strcpy( name_meshgroup, "SubMeshes On Solid" );
+          name_meshgroup = "SubMeshes On Solid";
         else if ( j == GetSubMeshOnCompoundTag() )
-          strcpy( name_meshgroup, "SubMeshes On Compound" );
+          name_meshgroup = "SubMeshes On Compound";
 
         // try to get submeshes container HDF group
         if ( aTopGroup->ExistInternalObject( name_meshgroup ) ) {
@@ -4366,9 +4470,9 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
             // identify submesh
             char name_submeshgroup[ HDF_NAME_MAX_LEN+1 ];
             aGroup->InternalObjectIndentify( k, name_submeshgroup );
-            if ( string( name_submeshgroup ).substr( 0, 7 ) == string( "SubMesh" )  ) {
+            if ( strncmp( name_submeshgroup, "SubMesh", 7 ) == 0 ) {
               // --> get submesh id
-              int subid = atoi( string( name_submeshgroup ).substr( 7 ).c_str() );
+              int subid = atoi( name_submeshgroup + 7 );
               if ( subid <= 0 )
                 continue;
               // open submesh HDF group
@@ -4388,7 +4492,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
                 aDataset->ReadFromDisk( refFromFile );
                 aDataset->CloseOnDisk();
                 if ( strlen( refFromFile ) > 0 ) {
-                  SALOMEDS::SObject_var subShapeSO = myCurrentStudy->FindObjectID( refFromFile );
+                  SALOMEDS::SObject_wrap subShapeSO = myCurrentStudy->FindObjectID( refFromFile );
                   CORBA::Object_var subShapeObject = SObjectToObject( subShapeSO );
                   if ( !CORBA::is_nil( subShapeObject ) ) {
                     aSubShapeObject = GEOM::GEOM_Object::_narrow( subShapeObject );
@@ -4418,7 +4522,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
                   char name_dataset[ HDF_NAME_MAX_LEN+1 ];
                   aSubSubGroup->InternalObjectIndentify( l, name_dataset );
                   // check if it is an algorithm
-                  if ( string( name_dataset ).substr( 0, 4 ) == string( "Algo" ) ) {
+                  if ( strncmp( name_dataset, "Algo", 4 ) == 0 ) {
                     aDataset = new HDFdataset( name_dataset, aSubSubGroup );
                     aDataset->OpenOnDisk();
                     size = aDataset->GetSize();
@@ -4538,7 +4642,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
                 aDataset->ReadFromDisk( refFromFile );
                 aDataset->CloseOnDisk();
                 if ( strlen( refFromFile ) > 0 ) {
-                  SALOMEDS::SObject_var shapeSO = myCurrentStudy->FindObjectID( refFromFile );
+                  SALOMEDS::SObject_wrap shapeSO = myCurrentStudy->FindObjectID( refFromFile );
                   CORBA::Object_var shapeObject = SObjectToObject( shapeSO );
                   if ( !CORBA::is_nil( shapeObject ) ) {
                     aShapeObject = GEOM::GEOM_Object::_narrow( shapeObject );
@@ -4574,7 +4678,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
                 continue;
 
               string iorSubString = GetORB()->object_to_string( aNewGroup );
-              int newSubId = myStudyContext->findId( iorSubString );
+              int        newSubId = myStudyContext->findId( iorSubString );
               myStudyContext->mapOldToNew( subid, newSubId );
 
               SMESH_GroupBase_i* aGroupImpl = SMESH::DownCast< SMESH_GroupBase_i*>( aNewGroup );
@@ -4583,8 +4687,10 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
 
               if ( SMESH_GroupOnFilter_i* aFilterGroup =
                    dynamic_cast< SMESH_GroupOnFilter_i*>( aGroupImpl ))
+              {
                 aFilterGroup->SetFilter( filter );
-
+                filter->UnRegister();
+              }
               SMESHDS_GroupBase* aGroupBaseDS = aGroupImpl->GetGroupDS();
               if ( !aGroupBaseDS )
                 continue;
@@ -4698,6 +4804,19 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
   }
   pd << ""; // prevent optimizing pd out
 
+  // creation of tree nodes for all data objects in the study
+  // to support tree representation customization and drag-n-drop:
+  SALOMEDS::Study_var                    study = theComponent->GetStudy();
+  SALOMEDS::UseCaseBuilder_wrap useCaseBuilder = study->GetUseCaseBuilder();
+  if ( !useCaseBuilder->IsUseCaseNode( theComponent ) ) {
+    useCaseBuilder->SetRootCurrent();
+    useCaseBuilder->Append( theComponent ); // component object is added as the top level item
+    SALOMEDS::ChildIterator_wrap it = study->NewChildIterator( theComponent ); 
+    for (it->InitEx(true); it->More(); it->Next()) {
+      useCaseBuilder->AppendTo( it->Value()->GetFather(), it->Value() );
+    }
+  }
+
   INFOS( "SMESH_Gen_i::Load completed" );
   return true;
 }
@@ -4765,24 +4884,6 @@ void SMESH_Gen_i::Close( SALOMEDS::SComponent_ptr theComponent )
     myStudyContextMap.erase( studyId );
   }
 
-  // delete SMESH_Mesh's
-//   See bug IPAL19437.
-//
-//   StudyContextStruct* context = myGen.GetStudyContext( studyId );
-//   map< int, SMESH_Mesh* >::iterator i_mesh = context->mapMesh.begin();
-//   for ( ; i_mesh != context->mapMesh.end(); ++i_mesh ) {
-//     printf( "--------------------------- SMESH_Gen_i::Close, delete aGroup = %p \n", i_mesh->second );
-//     delete i_mesh->second;
-//   }
-
-
-  // delete SMESHDS_Mesh's
-  // it's too long on big meshes
-//   if ( context->myDocument ) {
-//     delete context->myDocument;
-//     context->myDocument = 0;
-//   }
-
   // remove the tmp files meshes are loaded from
   SMESH_PreMeshInfo::RemoveStudyFiles_TMP_METHOD( theComponent );
 
@@ -4865,6 +4966,8 @@ int SMESH_Gen_i::RegisterObject(CORBA::Object_ptr theObject)
 {
   StudyContext* myStudyContext = GetCurrentStudyContext();
   if ( myStudyContext && !CORBA::is_nil( theObject )) {
+    if (GetCurrentStudyID() == myImportedStudyId)
+      myImportedStudyChanged = true;
     CORBA::String_var iorString = GetORB()->object_to_string( theObject );
     return myStudyContext->addObject( string( iorString.in() ) );
   }
@@ -4901,7 +5004,7 @@ void SMESH_Gen_i::SetName(const char* theIOR,
 {
   if ( theIOR && strcmp( theIOR, "" ) ) {
     CORBA::Object_var anObject = GetORB()->string_to_object( theIOR );
-    SALOMEDS::SObject_var aSO = ObjectToSObject( myCurrentStudy, anObject );
+    SALOMEDS::SObject_wrap aSO = ObjectToSObject( myCurrentStudy, anObject );
     if ( !aSO->_is_nil() ) {
       SetName( aSO, theName );
     }
@@ -4913,6 +5016,219 @@ int SMESH_Gen_i::GetCurrentStudyID()
   return myCurrentStudy->_is_nil() || myCurrentStudy->_non_existent() ? -1 : myCurrentStudy->StudyId();
 }
 
+// Version information
+char* SMESH_Gen_i::getVersion()
+{
+#if SMESH_DEVELOPMENT
+  return CORBA::string_dup(SMESH_VERSION_STR"dev");
+#else
+  return CORBA::string_dup(SMESH_VERSION_STR);
+#endif
+}
+
+//=================================================================================
+// function : Move()
+// purpose  : Moves objects to the specified position. 
+//            Is used in the drag-n-drop functionality.
+//=================================================================================
+void SMESH_Gen_i::Move( const SMESH::sobject_list& what,
+                        SALOMEDS::SObject_ptr where,
+                        CORBA::Long row )
+{
+  if ( CORBA::is_nil( where ) ) return;
+
+  SALOMEDS::Study_var study = where->GetStudy();
+  SALOMEDS::StudyBuilder_var studyBuilder = study->NewBuilder();
+  SALOMEDS::UseCaseBuilder_var useCaseBuilder = study->GetUseCaseBuilder();
+  SALOMEDS::SComponent_var father = where->GetFatherComponent();
+  std::string dataType = father->ComponentDataType();
+  if ( dataType != "SMESH" ) return; // not a SMESH component
+  
+  SALOMEDS::SObject_var objAfter;
+  if ( row >= 0 && useCaseBuilder->HasChildren( where ) ) {
+    // insert at given row -> find insertion position
+    SALOMEDS::UseCaseIterator_var useCaseIt = useCaseBuilder->GetUseCaseIterator( where );
+    int i;
+    for ( i = 0; i < row && useCaseIt->More(); i++, useCaseIt->Next() );
+    if ( i == row && useCaseIt->More() ) {
+      objAfter = useCaseIt->Value();
+    }
+  }
+  
+  for ( int i = 0; i < what.length(); i++ ) {
+    SALOMEDS::SObject_var sobj = what[i];
+    if ( CORBA::is_nil( sobj ) ) continue; // skip bad object
+    // insert the object to the use case tree
+    if ( !CORBA::is_nil( objAfter ) )
+      useCaseBuilder->InsertBefore( sobj, objAfter ); // insert at given row
+    else
+      useCaseBuilder->AppendTo( where, sobj );        // append to the end of list
+  }
+}
+//=================================================================================
+// function : IsApplicable
+// purpose  : Return true if algorithm can be applied
+//=================================================================================
+CORBA::Boolean SMESH_Gen_i::IsApplicable ( const char*           theAlgoType,
+                                           const char*           theLibName,
+                                           GEOM::GEOM_Object_ptr theGeomObject,
+                                           CORBA::Boolean        toCheckAll)
+{
+  SMESH_TRY;
+
+  std::string aPlatformLibName;
+  typedef GenericHypothesisCreator_i* (*GetHypothesisCreator)(const char*);
+  GenericHypothesisCreator_i* aCreator = getHypothesisCreator(theAlgoType, theLibName, aPlatformLibName);
+  if (aCreator)
+  {
+    TopoDS_Shape shape = GeomObjectToShape( theGeomObject );
+    if ( !shape.IsNull() )
+      return aCreator->IsApplicable( shape, toCheckAll );
+  }
+  else
+  {
+    return false;
+  }
+
+  SMESH_CATCH( SMESH::doNothing );
+  return true;
+}
+
+//=================================================================================
+// function : importData
+// purpose  : imports mesh data file (the med one) into the SMESH internal data structure
+//=================================================================================
+Engines::ListOfIdentifiers* SMESH_Gen_i::importData(CORBA::Long                   studyId,
+                                                    Engines::DataContainer_ptr    data,
+                                                    const Engines::ListOfOptions& options)
+{
+  Engines::ListOfIdentifiers_var aResultIds = new Engines::ListOfIdentifiers;
+  list<string> aResultList;
+
+  CORBA::Object_var aSMObject = myNS->Resolve( "/myStudyManager" );
+  SALOMEDS::StudyManager_var aStudyManager = SALOMEDS::StudyManager::_narrow( aSMObject );
+  SALOMEDS::Study_var aStudy = aStudyManager->GetStudyByID( studyId );
+  SetCurrentStudy(aStudy);
+
+  // load and store temporary imported file
+  string aFileName = Kernel_Utils::GetTmpFileName();
+  aFileName += string(".") + data->extension();
+  Engines::TMPFile* aFileStream = data->get();
+  const char *aBuffer = (const char*)aFileStream->NP_data();
+#ifdef WIN32
+  std::ofstream aFile(aFileName.c_str(), std::ios::binary);
+#else
+  std::ofstream aFile(aFileName.c_str());
+#endif
+  aFile.write(aBuffer, aFileStream->length());
+  aFile.close();
+
+  // Retrieve mesh names from the file
+  DriverMED_R_SMESHDS_Mesh aReader;
+  aReader.SetFile( aFileName );
+  aReader.SetMeshId(-1);
+  Driver_Mesh::Status aStatus;
+  list<string> aNames = aReader.GetMeshNames(aStatus);
+  SMESH::mesh_array_var aResult = new SMESH::mesh_array();
+  SMESH::DriverMED_ReadStatus aStatus2 = (SMESH::DriverMED_ReadStatus)aStatus;
+  if (aStatus2 == SMESH::DRS_OK) {
+    // Iterate through all meshes and create mesh objects
+    for ( list<string>::iterator it = aNames.begin(); it != aNames.end(); it++ ) {
+      // create mesh
+      SMESH::SMESH_Mesh_var mesh = createMesh();
+
+      // publish mesh in the study
+      SALOMEDS::SObject_var aSO;
+      if (CanPublishInStudy(mesh)) {
+        aSO = PublishMesh(aStudy, mesh.in(), (*it).c_str());
+        aResultList.push_back(aSO->GetID());
+      }
+      // Read mesh data (groups are published automatically by ImportMEDFile())
+      SMESH_Mesh_i* meshServant = dynamic_cast<SMESH_Mesh_i*>( GetServant( mesh ).in() );
+      ASSERT( meshServant );
+      meshServant->ImportMEDFile( aFileName.c_str(), (*it).c_str() );
+      //meshServant->GetImpl().GetMeshDS()->Modified();
+    }
+  } else {
+    MESSAGE("Opening MED file problems "<<aFileName.c_str())
+    return aResultIds._retn();
+  }
+
+  // remove temporary file 
+#ifdef WIN32
+  DeleteFileA(aFileName.c_str());
+#else
+  unlink(aFileName.c_str());
+#endif
+
+  if (!aResultList.empty()) {
+    aResultIds->length(aResultList.size());
+    list<string>::iterator aListIter = aResultList.begin();
+    for(int a = 0; aListIter != aResultList.end(); aListIter++, a++)
+      aResultIds[a] = aListIter->c_str();
+  }
+  
+  myImportedStudyId = studyId;
+  myImportedStudyChanged = false;
+
+  return aResultIds._retn();
+}
+
+//=================================================================================
+// function : getModifiedData
+// purpose  : exports all geometry of this GEOM module into one BRep file
+//=================================================================================
+Engines::ListOfData* SMESH_Gen_i::getModifiedData(CORBA::Long studyId)
+{
+  Engines::ListOfData_var aResult = new Engines::ListOfData;
+  
+  if (!myImportedStudyChanged) {
+    INFOS("SMESH module data was not changed")
+    return aResult._retn();
+  }
+
+  CORBA::Object_var aSMObject = myNS->Resolve("/myStudyManager");
+  SALOMEDS::StudyManager_var aStudyManager = SALOMEDS::StudyManager::_narrow(aSMObject);
+  SALOMEDS::Study_var aStudy = aStudyManager->GetStudyByID(studyId);
+  SetCurrentStudy(aStudy);
+  SALOMEDS::SComponent_var aComponent = aStudy->FindComponent("SMESH");
+  
+  if (CORBA::is_nil(aComponent))
+    return aResult._retn();
+
+  std::string aFullPath(Kernel_Utils::GetTmpFileName());
+  aFullPath += ".med";
+  StudyContext* myStudyContext = GetCurrentStudyContext();
+
+  SALOMEDS::ChildIterator_var anIter = aStudy->NewChildIterator(aComponent); // check only published meshes
+  int aNumMeshes = 0; // number of meshes in result
+  for(; anIter->More(); anIter->Next()) {
+    SALOMEDS::SObject_var aSO = anIter->Value();
+    CORBA::Object_var anObj = aSO->GetObject();
+    if (!CORBA::is_nil(anObj)) {
+      SMESH::SMESH_Mesh_var aCORBAMesh = SMESH::SMESH_Mesh::_narrow(anObj);
+      if(!aCORBAMesh->_is_nil()) {
+        SMESH_Mesh_i* myImpl = dynamic_cast<SMESH_Mesh_i*>(GetServant(aCORBAMesh).in());
+        if (myImpl) {
+          myImpl->Load();
+          SMESH_Mesh& aMesh = myImpl->GetImpl();
+          CORBA::String_var objName = aSO->GetName();
+          aMesh.ExportMED(aFullPath.c_str(), objName.in(), false, MED::eV2_2, 0);
+          aNumMeshes++;
+        }
+      }
+    }
+  }
+  if (aNumMeshes > 0) { // prepare a container to store files
+    INFOS("Write "<<aNumMeshes<<" meshes to "<<aFullPath.c_str());
+    aResult->length(1);
+    Engines::DataContainer_var aData = (new Engines_DataContainer_i(
+                    aFullPath.c_str(), "", "", true))->_this();
+    aResult[0] = aData;
+  }
+  return aResult._retn();
+}
+
 //=============================================================================
 /*!
  *  SMESHEngine_factory