X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FSMESH_I%2FSMESH_Gen_i_1.cxx;h=580663d464707729b7e045d832c8e7ee0444fd2f;hp=346150a0bdf20fa0763b5e2e88dfdda5b756d733;hb=6472eab132825fec572beda8276947593f85ffa1;hpb=386c76ea033aef391a39dfc3b015ed081ed49fd5

diff --git a/src/SMESH_I/SMESH_Gen_i_1.cxx b/src/SMESH_I/SMESH_Gen_i_1.cxx
index 346150a0b..580663d46 100644
--- a/src/SMESH_I/SMESH_Gen_i_1.cxx
+++ b/src/SMESH_I/SMESH_Gen_i_1.cxx
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2019  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
@@ -40,6 +40,7 @@
 #include <Utils_ExceptHandlers.hxx>
 #include <SALOMEDS_wrap.hxx>
 #include <SALOMEDS_Attributes_wrap.hxx>
+#include <SALOME_KernelServices.hxx>
 
 #include <TCollection_AsciiString.hxx>
 #include <TopoDS_Solid.hxx>
@@ -162,10 +163,11 @@ long SMESH_Gen_i::GetBallElementsGroupsTag()
 
 bool SMESH_Gen_i::CanPublishInStudy(CORBA::Object_ptr theIOR)
 {
-  if(MYDEBUG) MESSAGE("CanPublishInStudy - "<<!CORBA::is_nil(myCurrentStudy));
-  if( GetCurrentStudyID() < 0 )
-    return false;
+  if(MYDEBUG) MESSAGE("CanPublishInStudy - "<<!CORBA::is_nil(getStudyServant()));
   
+  if ( !myIsEnablePublish )
+    return false;
+
   SMESH::SMESH_Mesh_var aMesh       = SMESH::SMESH_Mesh::_narrow(theIOR);
   if( !aMesh->_is_nil() )
     return true;
@@ -191,18 +193,26 @@ bool SMESH_Gen_i::CanPublishInStudy(CORBA::Object_ptr theIOR)
 //purpose  : Put a result into a SALOMEDS::SObject_wrap or call UnRegister()!
 //=======================================================================
 
-SALOMEDS::SObject_ptr SMESH_Gen_i::ObjectToSObject(SALOMEDS::Study_ptr theStudy,
-                                                   CORBA::Object_ptr   theObject)
+SALOMEDS::SObject_ptr SMESH_Gen_i::ObjectToSObject(CORBA::Object_ptr theObject)
 {
   SALOMEDS::SObject_wrap aSO;
-  if ( !CORBA::is_nil( theStudy ) && !CORBA::is_nil( theObject ))
+  if ( !CORBA::is_nil( theObject ))
   {
     CORBA::String_var objStr = SMESH_Gen_i::GetORB()->object_to_string( theObject );
-    aSO = theStudy->FindObjectIOR( objStr.in() );
+    aSO = getStudyServant()->FindObjectIOR( objStr.in() );
   }
   return aSO._retn();
 }
 
+//=======================================================================
+//function : GetStudyPtr
+//purpose  : Get study from naming service
+//=======================================================================
+SALOMEDS::Study_var SMESH_Gen_i::getStudyServant()
+{
+  return SALOMEDS::Study::_duplicate(KERNEL::getStudyServant());
+}
+
 //=======================================================================
 //function : objectToServant
 //purpose  : 
@@ -227,7 +237,8 @@ GEOM::GEOM_Object_ptr SMESH_Gen_i::ShapeToGeomObject (const TopoDS_Shape& theSha
     if ( aClient && aClient->Find( theShape, IOR ))
     {
       CORBA::Object_var obj = GetORB()->string_to_object( IOR.ToCString() );
-      aShapeObj = GEOM::GEOM_Object::_narrow ( obj );
+      if ( !obj->_non_existent() )
+        aShapeObj = GEOM::GEOM_Object::_narrow ( obj );
     }
   }
   return aShapeObj._retn();
@@ -241,9 +252,10 @@ GEOM::GEOM_Object_ptr SMESH_Gen_i::ShapeToGeomObject (const TopoDS_Shape& theSha
 TopoDS_Shape SMESH_Gen_i::GeomObjectToShape(GEOM::GEOM_Object_ptr theGeomObject)
 {
   TopoDS_Shape S;
-  if ( !theGeomObject->_is_nil() ) {
-    GEOM_Client* aClient = GetShapeReader();
-    GEOM::GEOM_Gen_ptr aGeomEngine = GetGeomEngine();
+  if ( !theGeomObject->_is_nil() && !theGeomObject->_non_existent() )
+  {
+    GEOM_Client*           aClient = GetShapeReader();
+    GEOM::GEOM_Gen_var aGeomEngine = GetGeomEngine( theGeomObject );
     if ( aClient && !aGeomEngine->_is_nil () )
       S = aClient->GetShape( aGeomEngine, theGeomObject );
   }
@@ -252,21 +264,20 @@ TopoDS_Shape SMESH_Gen_i::GeomObjectToShape(GEOM::GEOM_Object_ptr theGeomObject)
 
 //=======================================================================
 //function : publish
-//purpose  : 
+//purpose  :
 //=======================================================================
 
-static SALOMEDS::SObject_ptr publish(SALOMEDS::Study_ptr   theStudy,
-                                     CORBA::Object_ptr     theIOR,
+static SALOMEDS::SObject_ptr publish(CORBA::Object_ptr     theIOR,
                                      SALOMEDS::SObject_ptr theFatherObject,
                                      const int             theTag = 0,
                                      const char*           thePixMap = 0,
                                      const bool            theSelectable = true)
 {
-  SALOMEDS::SObject_wrap SO = SMESH_Gen_i::ObjectToSObject( theStudy, theIOR );
+  SALOMEDS::Study_var theStudy = SMESH_Gen_i::getStudyServant();
+  SALOMEDS::SObject_wrap SO = SMESH_Gen_i::ObjectToSObject( theIOR );
   SALOMEDS::StudyBuilder_var     aStudyBuilder = theStudy->NewBuilder();
   SALOMEDS::UseCaseBuilder_wrap useCaseBuilder = theStudy->GetUseCaseBuilder();
-  SALOMEDS::SObject_wrap objAfter;
-  bool isNewSO = false;
+  bool isNewSO = false, isInUseCaseTree = false;
   if ( SO->_is_nil() )
   {
     if ( theTag == 0 ) {
@@ -277,22 +288,15 @@ static SALOMEDS::SObject_ptr publish(SALOMEDS::Study_ptr   theStudy,
     {
       SO = aStudyBuilder->NewObjectToTag( theFatherObject, theTag );
       isNewSO = true;
-
-      // define the next tag after given one in the data tree to insert SObject
-      SALOMEDS::SObject_wrap curObj;
-      if ( theFatherObject->GetLastChildTag() > theTag )
-      {
-        SALOMEDS::UseCaseIterator_wrap
-          anUseCaseIter = useCaseBuilder->GetUseCaseIterator(theFatherObject);
-        for ( ; anUseCaseIter->More(); anUseCaseIter->Next() ) {
-          curObj = anUseCaseIter->Value();
-          if ( curObj->Tag() > theTag  ) {
-            objAfter = curObj;
-            break;
-          }
-        }
-      }
     }
+    else
+    {
+      isInUseCaseTree = useCaseBuilder->IsUseCaseNode( SO );
+    }
+  }
+  else
+  {
+    isInUseCaseTree = useCaseBuilder->IsUseCaseNode( SO );
   }
 
   SALOMEDS::GenericAttribute_wrap anAttr;
@@ -306,7 +310,9 @@ static SALOMEDS::SObject_ptr publish(SALOMEDS::Study_ptr   theStudy,
     if ( !sameIOR )
     {
       iorAttr->SetValue( objStr.in() );
-      // UnRegister() !!!
+      // UnRegister() !!! --> random problems when meshing in parallel (yacs foreach) in
+      // distributed python scripts, because simultaneously created meshes are
+      // published into the same SO; as a result the mesh published first dies
       SALOME::GenericObj_var genObj = SALOME::GenericObj::_narrow( theIOR );
       if ( !genObj->_is_nil() )
         genObj->UnRegister();
@@ -325,13 +331,30 @@ static SALOMEDS::SObject_ptr publish(SALOMEDS::Study_ptr   theStudy,
     selAttr->SetSelectable( false );
   }
 
+  if ( !isNewSO )
+    aStudyBuilder->RemoveReference( SO );// remove garbage reference (23336)
+
   // add object to the use case tree
   // (to support tree representation customization and drag-n-drop)
-  if ( isNewSO )
+  if ( isNewSO || !isInUseCaseTree )
   {
-    if ( !CORBA::is_nil( objAfter ) )
+    // define the next tag after given one in the data tree to insert SObject
+    SALOMEDS::SObject_wrap curObj, objAfter;
+    if ( theFatherObject->GetLastChildTag() > theTag && theTag > 0 )
+    {
+      SALOMEDS::UseCaseIterator_wrap
+        anUseCaseIter = useCaseBuilder->GetUseCaseIterator(theFatherObject);
+      for ( ; anUseCaseIter->More(); anUseCaseIter->Next() ) {
+        curObj = anUseCaseIter->Value();
+        if ( curObj->Tag() > theTag  ) {
+          objAfter = curObj;
+          break;
+        }
+      }
+    }
+    if ( !CORBA::is_nil( objAfter ))
       useCaseBuilder->InsertBefore( SO, objAfter );    // insert at given tag
-    else if ( !useCaseBuilder->IsUseCaseNode( SO ) )
+    else if ( !isInUseCaseTree )
       useCaseBuilder->AppendTo( theFatherObject, SO ); // append to the end of list
   }
   return SO._retn();
@@ -347,8 +370,7 @@ void SMESH_Gen_i::SetName(SALOMEDS::SObject_ptr theSObject,
                           const char*           theDefaultName)
 {
   if ( !theSObject->_is_nil() ) {
-    SALOMEDS::Study_var               aStudy = theSObject->GetStudy();
-    SALOMEDS::StudyBuilder_var aStudyBuilder = aStudy->NewBuilder();
+    SALOMEDS::StudyBuilder_var aStudyBuilder = getStudyServant()->NewBuilder();
     SALOMEDS::GenericAttribute_wrap   anAttr =
       aStudyBuilder->FindOrCreateAttribute( theSObject, "AttributeName" );
     SALOMEDS::AttributeName_wrap aNameAttr = anAttr;
@@ -378,10 +400,9 @@ void SMESH_Gen_i::SetName(SALOMEDS::SObject_ptr theSObject,
 void SMESH_Gen_i::SetPixMap(SALOMEDS::SObject_ptr theSObject,
                             const char*           thePixMap)
 {
-  if ( !theSObject->_is_nil() && thePixMap && strlen( thePixMap ))
+  if ( !theSObject->_is_nil() && thePixMap && thePixMap && thePixMap[0] )
   {
-    SALOMEDS::Study_var               aStudy = theSObject->GetStudy();
-    SALOMEDS::StudyBuilder_var aStudyBuilder = aStudy->NewBuilder();
+    SALOMEDS::StudyBuilder_var aStudyBuilder = getStudyServant()->NewBuilder();
     SALOMEDS::GenericAttribute_wrap anAttr =
       aStudyBuilder->FindOrCreateAttribute( theSObject, "AttributePixMap" );
     SALOMEDS::AttributePixMap_wrap aPMAttr = anAttr;
@@ -394,21 +415,21 @@ void SMESH_Gen_i::SetPixMap(SALOMEDS::SObject_ptr theSObject,
 //purpose  : 
 //=======================================================================
 
-static void addReference (SALOMEDS::Study_ptr   theStudy,
-                          SALOMEDS::SObject_ptr theSObject,
+static void addReference (SALOMEDS::SObject_ptr theSObject,
                           CORBA::Object_ptr     theToObject,
                           int                   theTag = 0)
 {
-  SALOMEDS::SObject_wrap aToObjSO = SMESH_Gen_i::ObjectToSObject( theStudy, theToObject );
+  SALOMEDS::Study_var aStudy = SMESH_Gen_i::getStudyServant();
+  SALOMEDS::SObject_wrap aToObjSO = SMESH_Gen_i::ObjectToSObject( theToObject );
   if ( !aToObjSO->_is_nil() && !theSObject->_is_nil() ) {
-    SALOMEDS::StudyBuilder_var aStudyBuilder = theStudy->NewBuilder();
+    SALOMEDS::StudyBuilder_var aStudyBuilder = aStudy->NewBuilder();
     SALOMEDS::SObject_wrap aReferenceSO;
     if ( !theTag ) {
       // check if the reference to theToObject already exists
       // and find a free label for the reference object
       bool isReferred = false;
       int tag = 1;
-      SALOMEDS::ChildIterator_wrap anIter = theStudy->NewChildIterator( theSObject );
+      SALOMEDS::ChildIterator_wrap anIter = aStudy->NewChildIterator( theSObject );
       for ( ; !isReferred && anIter->More(); anIter->Next(), ++tag ) {
         SALOMEDS::SObject_wrap curSO = anIter->Value();
         if ( curSO->ReferencedObject( aReferenceSO.inout() )) {
@@ -433,9 +454,12 @@ static void addReference (SALOMEDS::Study_ptr   theStudy,
 
     aStudyBuilder->Addreference( aReferenceSO, aToObjSO );
 
+    // make the reference visible (invisible ref is created by createInvalidSubMesh())
+    aStudyBuilder->RemoveAttribute( aReferenceSO, "AttributeDrawable" );
+
     // add reference to the use case tree
     // (to support tree representation customization and drag-n-drop)
-    SALOMEDS::UseCaseBuilder_wrap  useCaseBuilder = theStudy->GetUseCaseBuilder();
+    SALOMEDS::UseCaseBuilder_wrap  useCaseBuilder = aStudy->GetUseCaseBuilder();
     SALOMEDS::UseCaseIterator_wrap    useCaseIter = useCaseBuilder->GetUseCaseIterator(theSObject);
     for ( ; useCaseIter->More(); useCaseIter->Next() )
     {
@@ -455,42 +479,43 @@ static void addReference (SALOMEDS::Study_ptr   theStudy,
  */
 //=============================================================================
 
-SALOMEDS::SObject_ptr SMESH_Gen_i::PublishInStudy(SALOMEDS::Study_ptr   theStudy,
-                                                  SALOMEDS::SObject_ptr theSObject,
+SALOMEDS::SObject_ptr SMESH_Gen_i::PublishInStudy(SALOMEDS::SObject_ptr theSObject,
                                                   CORBA::Object_ptr     theIOR,
                                                   const char*           theName)
      throw (SALOME::SALOME_Exception)
 {
   Unexpect aCatch(SALOME_SalomeException);
   SALOMEDS::SObject_wrap aSO;
-  if ( CORBA::is_nil( theStudy ) || CORBA::is_nil( theIOR ))
+  if ( !myIsEnablePublish )
+    return aSO._retn();
+  if ( CORBA::is_nil( theIOR ))
     return aSO._retn();
   if(MYDEBUG) MESSAGE("PublishInStudy");
 
   // Publishing a mesh
   SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_narrow( theIOR );
   if( !aMesh->_is_nil() )
-    aSO = PublishMesh( theStudy, aMesh, theName );
+    aSO = PublishMesh( aMesh, theName );
 
   // Publishing a sub-mesh
   SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow( theIOR );
   if( aSO->_is_nil() && !aSubMesh->_is_nil() ) {
     GEOM::GEOM_Object_var aShapeObject = aSubMesh->GetSubShape();
     aMesh = aSubMesh->GetFather();
-    aSO = PublishSubMesh( theStudy, aMesh, aSubMesh, aShapeObject, theName );
+    aSO = PublishSubMesh( aMesh, aSubMesh, aShapeObject, theName );
   }
 
   // Publishing a hypothesis or algorithm
   SMESH::SMESH_Hypothesis_var aHyp = SMESH::SMESH_Hypothesis::_narrow( theIOR );
   if ( aSO->_is_nil() && !aHyp->_is_nil() )
-    aSO = PublishHypothesis( theStudy, aHyp );
+    aSO = PublishHypothesis( aHyp, theName );
 
   // Publishing a group
   SMESH::SMESH_GroupBase_var aGroup = SMESH::SMESH_GroupBase::_narrow(theIOR);
   if ( aSO->_is_nil() && !aGroup->_is_nil() ) {
     GEOM::GEOM_Object_var aShapeObject;
     aMesh = aGroup->GetMesh();
-    aSO = PublishGroup( theStudy, aMesh, aGroup, aShapeObject, theName );
+    aSO = PublishGroup( aMesh, aGroup, aShapeObject, theName );
   }
   if(MYDEBUG) MESSAGE("PublishInStudy_END");
 
@@ -502,17 +527,32 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishInStudy(SALOMEDS::Study_ptr   theStudy
 //purpose  : 
 //=======================================================================
 
-SALOMEDS::SComponent_ptr SMESH_Gen_i::PublishComponent(SALOMEDS::Study_ptr theStudy)
+SALOMEDS::SComponent_ptr SMESH_Gen_i::PublishComponent()
 {
-  if ( CORBA::is_nil( theStudy ))
-    return SALOMEDS::SComponent::_nil();
   if(MYDEBUG) MESSAGE("PublishComponent");
+  if ( !myIsEnablePublish )
+    return SALOMEDS::SComponent::_nil();
 
-  SALOMEDS::StudyBuilder_var    aStudyBuilder  = theStudy->NewBuilder(); 
-  SALOMEDS::UseCaseBuilder_wrap useCaseBuilder = theStudy->GetUseCaseBuilder();
+  SALOMEDS::StudyBuilder_var    aStudyBuilder  = getStudyServant()->NewBuilder();
+  SALOMEDS::UseCaseBuilder_wrap useCaseBuilder = getStudyServant()->GetUseCaseBuilder();
+
+  std::string compDataType = ComponentDataType(); // SMESH module's data type
+  std::string ior = SMESH_Gen_i::GetORB()->object_to_string( SMESH_Gen::_this() ); // IOR of this SMESH engine
 
-  CORBA::String_var   compDataType = ComponentDataType();
-  SALOMEDS::SComponent_wrap father = theStudy->FindComponent( compDataType.in() );
+  // Find study component which corresponds to this SMESH engine
+
+  SALOMEDS::SComponent_wrap father;
+  SALOMEDS::SComponentIterator_wrap citer = getStudyServant()->NewComponentIterator();
+  for ( ; citer->More(); citer->Next()) {
+    SALOMEDS::SComponent_wrap f_i = citer->Value();
+    CORBA::String_var ior_i;
+    bool ok = f_i->ComponentIOR(ior_i.out());
+    if ( ok && compDataType == f_i->ComponentDataType() && ior == ior_i.in()) {
+      father = f_i;
+      break;
+    }
+  }
+  
   if ( !CORBA::is_nil( father ) ) {
     // check that the component is added to the use case browser
     if ( !useCaseBuilder->IsUseCaseNode( father ) ) {
@@ -522,19 +562,21 @@ SALOMEDS::SComponent_ptr SMESH_Gen_i::PublishComponent(SALOMEDS::Study_ptr theSt
     return father._retn();
   }
 
+  // If component for this SMESH engine does not exist in the study, create it
+
   SALOME_ModuleCatalog::ModuleCatalog_var aCat =
     SALOME_ModuleCatalog::ModuleCatalog::_narrow( GetNS()->Resolve("/Kernel/ModulCatalog") );
   if ( CORBA::is_nil( aCat ) )
     return father._retn();
 
-  SALOME_ModuleCatalog::Acomponent_var aComp = aCat->GetComponent( compDataType.in() );
+  SALOME_ModuleCatalog::Acomponent_var aComp = aCat->GetComponent( compDataType.c_str() );
   if ( CORBA::is_nil( aComp ) )
     return father._retn();
 
   SALOMEDS::GenericAttribute_wrap anAttr;
   SALOMEDS::AttributePixMap_wrap  aPixmap;
 
-  father  = aStudyBuilder->NewComponent( compDataType.in() );
+  father  = aStudyBuilder->NewComponent( compDataType.c_str() );
   aStudyBuilder->DefineComponentInstance( father, SMESH_Gen::_this() );
   anAttr  = aStudyBuilder->FindOrCreateAttribute( father, "AttributePixMap" );
   aPixmap = anAttr;
@@ -555,21 +597,21 @@ SALOMEDS::SComponent_ptr SMESH_Gen_i::PublishComponent(SALOMEDS::Study_ptr theSt
 //purpose  : 
 //=======================================================================
 
-SALOMEDS::SObject_ptr SMESH_Gen_i::PublishMesh (SALOMEDS::Study_ptr   theStudy,
-                                                SMESH::SMESH_Mesh_ptr theMesh,
+SALOMEDS::SObject_ptr SMESH_Gen_i::PublishMesh (SMESH::SMESH_Mesh_ptr theMesh,
                                                 const char*           theName)
 {
-  if ( CORBA::is_nil( theStudy ) ||
-       CORBA::is_nil( theMesh ))
-    return SALOMEDS::SComponent::_nil();
+  if ( !myIsEnablePublish )
+    return SALOMEDS::SObject::_nil();
+  if ( CORBA::is_nil( theMesh ))
+    return SALOMEDS::SObject::_nil();
   if(MYDEBUG) MESSAGE("PublishMesh--IN");
 
   // find or publish a mesh
 
-  SALOMEDS::SObject_wrap aMeshSO = ObjectToSObject( theStudy, theMesh );
+  SALOMEDS::SObject_wrap aMeshSO = ObjectToSObject( theMesh );
   if ( aMeshSO->_is_nil() )
   {
-    SALOMEDS::SComponent_wrap father = PublishComponent( theStudy );
+    SALOMEDS::SComponent_wrap father = PublishComponent();
     if ( father->_is_nil() )
       return aMeshSO._retn();
 
@@ -580,7 +622,7 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishMesh (SALOMEDS::Study_ptr   theStudy,
     else
       aTag++;
 
-    aMeshSO = publish (theStudy, theMesh, father, aTag, "ICON_SMESH_TREE_MESH_WARN" );
+    aMeshSO = publish( theMesh, father, aTag, "ICON_SMESH_TREE_MESH_WARN" );
     if ( aMeshSO->_is_nil() )
       return aMeshSO._retn();
   }
@@ -590,7 +632,7 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishMesh (SALOMEDS::Study_ptr   theStudy,
 
   GEOM::GEOM_Object_var aShapeObject = theMesh->GetShapeToMesh();
   if ( !CORBA::is_nil( aShapeObject )) {
-    addReference( theStudy, aMeshSO, aShapeObject, GetRefOnShapeTag() );
+    addReference( aMeshSO, aShapeObject, GetRefOnShapeTag() );
 
     // Publish global hypotheses
 
@@ -598,8 +640,8 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishMesh (SALOMEDS::Study_ptr   theStudy,
     for ( CORBA::ULong i = 0; i < hypList->length(); i++ )
     {
       SMESH::SMESH_Hypothesis_var aHyp = SMESH::SMESH_Hypothesis::_narrow( hypList[ i ]);
-      SALOMEDS::SObject_wrap so = PublishHypothesis( theStudy, aHyp );
-      AddHypothesisToShape( theStudy, theMesh, aShapeObject, aHyp );
+      SALOMEDS::SObject_wrap so = PublishHypothesis( aHyp );
+      AddHypothesisToShape( theMesh, aShapeObject, aHyp );
     }
   }
 
@@ -614,7 +656,7 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishMesh (SALOMEDS::Study_ptr   theStudy,
     SMESH::SMESH_subMesh_ptr aSubMesh = (*subIt).second->_this();
     if ( !CORBA::is_nil( aSubMesh )) {
       aShapeObject = aSubMesh->GetSubShape();
-      SALOMEDS::SObject_wrap( PublishSubMesh( theStudy, theMesh, aSubMesh, aShapeObject ));
+      SALOMEDS::SObject_wrap( PublishSubMesh( theMesh, aSubMesh, aShapeObject ));
     }
   }
 
@@ -629,7 +671,7 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishMesh (SALOMEDS::Study_ptr   theStudy,
       SMESH::SMESH_GroupOnGeom_var aGeomGroup = SMESH::SMESH_GroupOnGeom::_narrow( aGroup );
       if ( !aGeomGroup->_is_nil() )
         aShapeObj = aGeomGroup->GetShape();
-      SALOMEDS::SObject_wrap( PublishGroup( theStudy, theMesh, aGroup, aShapeObj ));
+      SALOMEDS::SObject_wrap( PublishGroup( theMesh, aGroup, aShapeObj ));
     }
   }
 
@@ -642,22 +684,24 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishMesh (SALOMEDS::Study_ptr   theStudy,
 //purpose  : 
 //=======================================================================
 
-SALOMEDS::SObject_ptr SMESH_Gen_i::PublishSubMesh (SALOMEDS::Study_ptr      theStudy,
-                                                   SMESH::SMESH_Mesh_ptr    theMesh,
+SALOMEDS::SObject_ptr SMESH_Gen_i::PublishSubMesh (SMESH::SMESH_Mesh_ptr    theMesh,
                                                    SMESH::SMESH_subMesh_ptr theSubMesh,
                                                    GEOM::GEOM_Object_ptr    theShapeObject,
                                                    const char*              theName)
 {
-  if (theStudy->_is_nil() || theMesh->_is_nil() ||
-      theSubMesh->_is_nil() || theShapeObject->_is_nil() )
+  if ( !myIsEnablePublish )
     return SALOMEDS::SObject::_nil();
+  if ( theMesh->_is_nil() || theSubMesh->_is_nil() || theShapeObject->_is_nil() )
+    return SALOMEDS::SObject::_nil();
+
+  std::string newName( theName ? theName : "" );
 
-  SALOMEDS::SObject_wrap aSubMeshSO = ObjectToSObject( theStudy, theSubMesh );
+  SALOMEDS::SObject_wrap aSubMeshSO = ObjectToSObject( theSubMesh );
   if ( aSubMeshSO->_is_nil() )
   {
-    SALOMEDS::SObject_wrap aMeshSO = ObjectToSObject( theStudy, theMesh );
+    SALOMEDS::SObject_wrap aMeshSO = ObjectToSObject( theMesh );
     if ( aMeshSO->_is_nil() ) {
-      aMeshSO = PublishMesh( theStudy, theMesh );
+      aMeshSO = PublishMesh( theMesh );
       if ( aMeshSO->_is_nil())
         return SALOMEDS::SObject::_nil();
     }
@@ -696,34 +740,57 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishSubMesh (SALOMEDS::Study_ptr      theS
     }
 
     // Find or create submesh root
-    SALOMEDS::SObject_wrap aRootSO = publish (theStudy, CORBA::Object::_nil(),
-                                             aMeshSO, aRootTag, 0, false );
+    SALOMEDS::SObject_wrap aRootSO = publish ( CORBA::Object::_nil(),
+                                               aMeshSO, aRootTag, 0, false );
     if ( aRootSO->_is_nil() )
       return aSubMeshSO._retn();
 
     SetName( aRootSO, aRootName );
 
-    // Add new submesh to corresponding sub-tree
+    // Add new sub-mesh to corresponding sub-tree
+    int tag = 0; // to use a new SObject
+    if ( theName && theName[0] == '0' )
+    {
+      // theName can be an entry of an invalid sub-mesh which theSubMesh should replace
+      SALOMEDS::SObject_wrap aSObj = getStudyServant()->FindObjectID( theName );
+      if ( aSObj )
+      {
+        CORBA::String_var oldName = aSObj->GetName();
+        newName = oldName.in();
+        SALOMEDS::SObject_wrap aRootSO2 = aSObj->GetFather();
+        if ( aRootSO->Tag() == aRootSO2->Tag() ) // same parent
+          tag = aSObj->Tag(); // to use the same SObject
+        else
+        {
+          CORBA::Object_var anObj = SObjectToObject( aSObj );
+          SMESH::SMESH_subMesh_var sm = SMESH::SMESH_subMesh::_narrow( anObj );
+          theMesh->RemoveSubMesh( sm );
+        }
+      }
+    }
     SMESH::array_of_ElementType_var elemTypes = theSubMesh->GetTypes();
     const int isEmpty = ( elemTypes->length() == 0 );
     const char* pm[2] = { "ICON_SMESH_TREE_MESH", "ICON_SMESH_TREE_MESH_WARN" };
-    aSubMeshSO = publish (theStudy, theSubMesh, aRootSO, 0, pm[isEmpty] );
+    aSubMeshSO = publish ( theSubMesh, aRootSO, tag, pm[isEmpty] );
     if ( aSubMeshSO->_is_nil() )
       return aSubMeshSO._retn();
+
+    highLightInvalid( aSubMeshSO, false ); // now it is valid
   }
-  SetName( aSubMeshSO, theName, "SubMesh" );
+  SetName( aSubMeshSO, newName.c_str(), "SubMesh" );
 
   // Add reference to theShapeObject
 
-  addReference( theStudy, aSubMeshSO, theShapeObject, 1 );
+  addReference( aSubMeshSO, theShapeObject, GetRefOnShapeTag() );
 
   // Publish hypothesis
 
   SMESH::ListOfHypothesis_var hypList = theMesh->GetHypothesisList( theShapeObject );
-  for ( CORBA::ULong i = 0; i < hypList->length(); i++ ) {
+  for ( CORBA::ULong i = 0; i < hypList->length(); i++ )
+  {
     SMESH::SMESH_Hypothesis_var aHyp = SMESH::SMESH_Hypothesis::_narrow( hypList[ i ]);
-    SALOMEDS::SObject_wrap so = PublishHypothesis( theStudy, aHyp );
-    AddHypothesisToShape( theStudy, theMesh, theShapeObject, aHyp );
+    SALOMEDS::SObject_wrap so = PublishHypothesis( aHyp );
+    AddHypothesisToShape( theMesh, theShapeObject, aHyp );
   }
 
   return aSubMeshSO._retn();
@@ -734,21 +801,22 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishSubMesh (SALOMEDS::Study_ptr      theS
 //purpose  : 
 //=======================================================================
 
-SALOMEDS::SObject_ptr SMESH_Gen_i::PublishGroup (SALOMEDS::Study_ptr    theStudy,
-                                                 SMESH::SMESH_Mesh_ptr  theMesh,
+SALOMEDS::SObject_ptr SMESH_Gen_i::PublishGroup (SMESH::SMESH_Mesh_ptr  theMesh,
                                                  SMESH::SMESH_GroupBase_ptr theGroup,
                                                  GEOM::GEOM_Object_ptr  theShapeObject,
                                                  const char*            theName)
 {
-  if (theStudy->_is_nil() || theMesh->_is_nil() || theGroup->_is_nil() )
+  if ( !myIsEnablePublish )
+    return SALOMEDS::SObject::_nil();
+  if (theMesh->_is_nil() || theGroup->_is_nil() )
     return SALOMEDS::SObject::_nil();
 
-  SALOMEDS::SObject_wrap aGroupSO = ObjectToSObject( theStudy, theGroup );
+  SALOMEDS::SObject_wrap aGroupSO = ObjectToSObject( theGroup );
   if ( aGroupSO->_is_nil() )
   {
-    SALOMEDS::SObject_wrap aMeshSO = ObjectToSObject( theStudy, theMesh );
+    SALOMEDS::SObject_wrap aMeshSO = ObjectToSObject( theMesh );
     if ( aMeshSO->_is_nil() ) {
-      aMeshSO = PublishInStudy( theStudy, SALOMEDS::SObject::_nil(), theMesh, "");
+      aMeshSO = PublishInStudy( SALOMEDS::SObject::_nil(), theMesh, "");
       if ( aMeshSO->_is_nil())
         return SALOMEDS::SObject::_nil();
     }
@@ -758,38 +826,42 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishGroup (SALOMEDS::Study_ptr    theStudy
       "Groups of Faces", "Groups of Volumes", "Groups of 0D Elements",
       "Groups of Balls" };
 
-    // Currently, groups with heterogenous content are not supported
+    // Currently, groups with heterogeneous content are not supported
     if ( aType != SMESH::ALL )
     {
       long aRootTag = GetNodeGroupsTag() + aType - 1;
 
       // Find or create groups root
-      SALOMEDS::SObject_wrap aRootSO = publish (theStudy, CORBA::Object::_nil(),
-                                               aMeshSO, aRootTag, 0, false );
+      SALOMEDS::SObject_wrap aRootSO = publish ( CORBA::Object::_nil(),
+                                                 aMeshSO, aRootTag, 0, false );
       if ( aRootSO->_is_nil() ) return SALOMEDS::SObject::_nil();
 
       if ( aType < sizeof(aRootNames)/sizeof(char*) )
         SetName( aRootSO, aRootNames[aType] );
 
       // Add new group to corresponding sub-tree
-      int isEmpty = false;
+      int isEmpty = ( theMesh->NbNodes() == 0 );
       std::string pm[2] = { "ICON_SMESH_TREE_GROUP", "ICON_SMESH_TREE_MESH_WARN" };
-      if ( SMESH::DownCast< SMESH_GroupOnFilter_i* > ( theGroup ))
-      {
-        pm[0] = "ICON_SMESH_TREE_GROUP_ON_FILTER";
-      }
-      else if ( SMESH::DownCast< SMESH_Group_i* > ( theGroup ))
+      if ( !isEmpty )
       {
-        if ( theGroup->GetType() == SMESH::NODE )
-          isEmpty = ( theMesh->NbNodes() == 0 );
-        else
+        if ( SMESH::DownCast< SMESH_GroupOnFilter_i* > ( theGroup )) // on filter
+        {
+          pm[0] = "ICON_SMESH_TREE_GROUP_ON_FILTER";
+
+          if ( theGroup->GetType() != SMESH::NODE )
+          {
+            isEmpty = true;
+            SMESH::array_of_ElementType_var allElemTypes = theMesh->GetTypes();
+            for ( size_t i =0; i < allElemTypes->length() && isEmpty; ++i )
+              isEmpty = ( allElemTypes[i] != theGroup->GetType() );
+          }
+        }
+        else // standalone or on geometry
         {
-          SMESH::array_of_ElementType_var allElemTypes = theMesh->GetTypes();
-          for ( size_t i =0; i < allElemTypes->length() && isEmpty; ++i )
-            isEmpty = ( allElemTypes[i] != theGroup->GetType() );
+          isEmpty = ( theGroup->Size() == 0 );
         }
       }
-      aGroupSO = publish (theStudy, theGroup, aRootSO, 0, pm[isEmpty].c_str() );
+      aGroupSO = publish ( theGroup, aRootSO, 0, pm[isEmpty].c_str() );
     }
     if ( aGroupSO->_is_nil() )
       return aGroupSO._retn();
@@ -799,31 +871,32 @@ SALOMEDS::SObject_ptr SMESH_Gen_i::PublishGroup (SALOMEDS::Study_ptr    theStudy
 
   //Add reference to geometry
   if ( !theShapeObject->_is_nil() )
-    addReference( theStudy, aGroupSO, theShapeObject, 1 );
+    addReference( aGroupSO, theShapeObject, GetRefOnShapeTag() );
 
   return aGroupSO._retn();
 }
 
 //=======================================================================
 //function : PublishHypothesis
-//purpose  : 
+//purpose  :
 //=======================================================================
 
 SALOMEDS::SObject_ptr
-  SMESH_Gen_i::PublishHypothesis (SALOMEDS::Study_ptr         theStudy,
-                                  SMESH::SMESH_Hypothesis_ptr theHyp,
-                                  const char*                 theName)
+SMESH_Gen_i::PublishHypothesis (SMESH::SMESH_Hypothesis_ptr theHyp,
+                                const char*                 theName)
 {
-  if(MYDEBUG) MESSAGE("PublishHypothesis")
-  if (theStudy->_is_nil() || theHyp->_is_nil())
+  if(MYDEBUG) MESSAGE("PublishHypothesis");
+  if ( !myIsEnablePublish )
+    return SALOMEDS::SObject::_nil();
+  if (theHyp->_is_nil())
     return SALOMEDS::SObject::_nil();
 
   CORBA::String_var hypType = theHyp->GetName();
 
-  SALOMEDS::SObject_wrap aHypSO = ObjectToSObject( theStudy, theHyp );
+  SALOMEDS::SObject_wrap aHypSO = ObjectToSObject( theHyp );
   if ( aHypSO->_is_nil() )
   {
-    SALOMEDS::SComponent_wrap father = PublishComponent( theStudy );
+    SALOMEDS::SComponent_wrap father = PublishComponent();
     if ( father->_is_nil() )
       return aHypSO._retn();
 
@@ -831,7 +904,7 @@ SALOMEDS::SObject_ptr
     bool isAlgo = ( !SMESH::SMESH_Algo::_narrow( theHyp )->_is_nil() );
     int aRootTag = isAlgo ? GetAlgorithmsRootTag() : GetHypothesisRootTag();
     SALOMEDS::SObject_wrap aRootSO =
-      publish (theStudy, CORBA::Object::_nil(),father, aRootTag,
+      publish (CORBA::Object::_nil(),father, aRootTag,
                isAlgo ? "ICON_SMESH_TREE_ALGO" : "ICON_SMESH_TREE_HYPO", false);
     SetName( aRootSO, isAlgo ?  "Algorithms" : "Hypotheses" );
 
@@ -842,7 +915,7 @@ SALOMEDS::SObject_ptr
     string pluginName = myHypCreatorMap[ hypType.in() ]->GetModuleName();
     if ( pluginName != "StdMeshers" )
       aPmName = pluginName + "::" + aPmName;
-    aHypSO = publish( theStudy, theHyp, aRootSO, 0, aPmName.c_str() );
+    aHypSO = publish( theHyp, aRootSO, 0, aPmName.c_str() );
   }
 
   SetName( aHypSO, theName, hypType.in() );
@@ -851,15 +924,147 @@ SALOMEDS::SObject_ptr
   return aHypSO._retn();
 }
 
+//=======================================================================
+//function : UpdateIcons
+//purpose  : update icons of a mesh and its children upon mesh modification
+//=======================================================================
+
+void SMESH_Gen_i::UpdateIcons( SMESH::SMESH_Mesh_ptr theMesh )
+{
+  SMESH_Mesh_i* mesh_i = SMESH::DownCast< SMESH_Mesh_i* >( theMesh );
+  if ( ! mesh_i )
+    return;
+
+  SALOMEDS::SObject_wrap so = ObjectToSObject( theMesh );
+  if ( so->_is_nil() )
+    return;
+
+  // set icon of the mesh
+  if ( mesh_i->NbNodes() == 0 )
+    SetPixMap( so, "ICON_SMESH_TREE_MESH_WARN" );
+  else if ( mesh_i->IsComputedOK() )
+    SetPixMap( so, "ICON_SMESH_TREE_MESH" );
+  else if ( mesh_i->HasShapeToMesh() )
+    SetPixMap( so, "ICON_SMESH_TREE_MESH_PARTIAL" );
+  else
+    SetPixMap( so, "ICON_SMESH_TREE_MESH_IMPORTED" );
+
+  // set icons of sub-objects
+  SALOMEDS::Study_var         study = getStudyServant();
+  SALOMEDS::ChildIterator_wrap iter = study->NewChildIterator( so );
+  for ( ; iter->More(); iter->Next() )
+  {
+    so = iter->Value(); // 1st level child - root of algos, hyps, sub-meshes or groups
+    if ( so->Tag() < SMESH::Tag_FirstSubMesh )
+      continue;
+
+    SALOMEDS::ChildIterator_wrap subIter = study->NewChildIterator( so );
+    for ( ; subIter->More(); subIter->Next() )
+    {
+      so = subIter->Value(); // 2nd level child - a sub-mesh or group
+
+      CORBA::Object_var           obj = SObjectToObject( so );
+      SMESH::SMESH_IDSource_var idSrc = SMESH::SMESH_IDSource::_narrow( obj );
+      if ( idSrc->_is_nil() )
+        continue;
+
+      SMESH::SMESH_GroupBase_var     grp = SMESH::SMESH_GroupBase::_narrow( obj );
+      SMESH::SMESH_GroupOnFilter_var gof = SMESH::SMESH_GroupOnFilter::_narrow( obj );
+      const bool         isGroup = !grp->_is_nil();
+      const bool isGroupOnFilter = !gof->_is_nil();
+
+      bool isEmpty = ( mesh_i->NbNodes() == 0 );
+      if ( !isEmpty )
+      {
+        if ( isGroupOnFilter ) // GetTypes() can be very long on GroupOnFilter!
+        {
+          SMESH::long_array_var nbByType = mesh_i->GetNbElementsByType();
+          isEmpty = ( nbByType[ grp->GetType() ] == 0 );
+        }
+        else
+        {
+          SMESH::array_of_ElementType_var elemTypes = idSrc->GetTypes();
+          isEmpty = ( elemTypes->length() == 0 );
+        }
+      }
+      if ( isEmpty )
+        SetPixMap( so, "ICON_SMESH_TREE_MESH_WARN");
+      else if ( !isGroup )
+        SetPixMap( so, "ICON_SMESH_TREE_MESH" );
+      else if ( isGroupOnFilter )
+        SetPixMap( so, "ICON_SMESH_TREE_GROUP_ON_FILTER" );
+      else
+        SetPixMap( so, "ICON_SMESH_TREE_GROUP" );
+    }
+  }
+}
+
+//=======================================================================
+//function : HighLightInvalid
+//purpose  : change font color of a object in the Object Browser
+//=======================================================================
+
+void SMESH_Gen_i::HighLightInvalid( CORBA::Object_ptr theObject, bool isInvalid )
+{
+  SALOMEDS::SObject_wrap so = ObjectToSObject(theObject);
+  highLightInvalid( so.in(), isInvalid );
+}
+
+//=======================================================================
+//function : highLightInvalid
+//purpose  : change font color of a object in the Object Browser
+//=======================================================================
+
+void SMESH_Gen_i::highLightInvalid( SALOMEDS::SObject_ptr theSObject, bool isInvalid )
+{
+  if ( !theSObject->_is_nil() )
+  {
+    SALOMEDS::StudyBuilder_var studyBuilder = getStudyServant()->NewBuilder();
+    if ( isInvalid )
+    {
+      SALOMEDS::Color red = { 178,34,34 }; // to differ from reference color
+      SALOMEDS::GenericAttribute_wrap attr =
+        studyBuilder->FindOrCreateAttribute( theSObject, "AttributeTextColor" );
+      SALOMEDS::AttributeTextColor_wrap colorAttr = attr;
+      colorAttr->SetTextColor( red );
+    }
+    else
+    {
+      studyBuilder->RemoveAttribute( theSObject, "AttributeTextColor" );
+    }
+  }
+}
+
+//=======================================================================
+//function : IsInvalid
+//purpose  : Check object validity == absence of AttributeTextColor=(178,34,34)
+//=======================================================================
+
+bool SMESH_Gen_i::IsInvalid( SALOMEDS::SObject_ptr theSObject )
+{
+  bool isValid = true;
+  if ( !theSObject->_is_nil() )
+  {
+    SALOMEDS::GenericAttribute_wrap attr;
+    SALOMEDS::StudyBuilder_var studyBuilder = getStudyServant()->NewBuilder();
+    if ( studyBuilder->FindAttribute( theSObject, attr.inout(), "AttributeTextColor" ))
+    {
+      SALOMEDS::AttributeTextColor_wrap colorAttr = attr;
+      SALOMEDS::Color color = colorAttr->TextColor();
+      isValid = ( color.R != 178 || color.G != 34 || color.B != 34 );
+    }
+  }
+  return isValid;
+}
+
 //=======================================================================
 //function : GetMeshOrSubmeshByShape
 //purpose  : 
 //=======================================================================
 
 SALOMEDS::SObject_ptr
-  SMESH_Gen_i::GetMeshOrSubmeshByShape (SALOMEDS::Study_ptr   theStudy,
-                                        SMESH::SMESH_Mesh_ptr theMesh,
-                                        GEOM::GEOM_Object_ptr theShape)
+SMESH_Gen_i::GetMeshOrSubmeshByShape (SMESH::SMESH_Mesh_ptr theMesh,
+                                      GEOM::GEOM_Object_ptr theShape)
 {
   if(MYDEBUG) MESSAGE("GetMeshOrSubmeshByShape")
   SALOMEDS::SObject_wrap aMeshOrSubMesh;
@@ -877,12 +1082,12 @@ SALOMEDS::SObject_ptr
   if ( !aShape.IsNull() && mesh_i && mesh_i->GetImpl().GetMeshDS() ) {
     SMESHDS_Mesh* meshDS = mesh_i->GetImpl().GetMeshDS();
     if ( aShape.IsSame( meshDS->ShapeToMesh() ))
-      aMeshOrSubMesh = ObjectToSObject( theStudy, theMesh );
+      aMeshOrSubMesh = ObjectToSObject( theMesh );
     else {
       int shapeID = meshDS->ShapeToIndex( aShape );
       SMESH::SMESH_subMesh_var aSubMesh = mesh_i->getSubMesh(shapeID);
       if ( !aSubMesh->_is_nil() )
-        aMeshOrSubMesh = ObjectToSObject( theStudy, aSubMesh );
+        aMeshOrSubMesh = ObjectToSObject( aSubMesh );
     }
   }
   if(MYDEBUG) MESSAGE("GetMeshOrSubmeshByShape--END")
@@ -894,27 +1099,26 @@ SALOMEDS::SObject_ptr
 //purpose  : 
 //=======================================================================
 
-bool SMESH_Gen_i::AddHypothesisToShape(SALOMEDS::Study_ptr         theStudy,
-                                       SMESH::SMESH_Mesh_ptr       theMesh,
+bool SMESH_Gen_i::AddHypothesisToShape(SMESH::SMESH_Mesh_ptr       theMesh,
                                        GEOM::GEOM_Object_ptr       theShape,
                                        SMESH::SMESH_Hypothesis_ptr theHyp)
 {
   if(MYDEBUG) MESSAGE("AddHypothesisToShape")
-  if (theStudy->_is_nil() || theMesh->_is_nil() ||
+  if (theMesh->_is_nil() ||
       theHyp->_is_nil() || (theShape->_is_nil()
                             && theMesh->HasShapeToMesh()) )
     return false;
 
-  SALOMEDS::SObject_wrap aMeshSO = ObjectToSObject( theStudy, theMesh );
+  SALOMEDS::SObject_wrap aMeshSO = ObjectToSObject( theMesh );
   if ( aMeshSO->_is_nil() )
-    aMeshSO = PublishMesh( theStudy, theMesh );
-  SALOMEDS::SObject_wrap aHypSO = PublishHypothesis( theStudy, theHyp );
+    aMeshSO = PublishMesh( theMesh );
+  SALOMEDS::SObject_wrap aHypSO = PublishHypothesis( theHyp );
   if ( aMeshSO->_is_nil() || aHypSO->_is_nil())
     return false;
 
-  // Find a mesh or submesh refering to theShape
+  // Find a mesh or submesh referring to theShape
   SALOMEDS::SObject_wrap aMeshOrSubMesh =
-    GetMeshOrSubmeshByShape( theStudy, theMesh, theShape );
+    GetMeshOrSubmeshByShape( theMesh, theShape );
   if ( aMeshOrSubMesh->_is_nil() )
   {
     // publish submesh
@@ -924,7 +1128,7 @@ bool SMESH_Gen_i::AddHypothesisToShape(SALOMEDS::Study_ptr         theStudy,
       SMESHDS_Mesh* meshDS = mesh_i->GetImpl().GetMeshDS();
       int shapeID = meshDS->ShapeToIndex( aShape );
       SMESH::SMESH_subMesh_var aSubMesh = mesh_i->getSubMesh(shapeID);
-      aMeshOrSubMesh = PublishSubMesh( theStudy, theMesh, aSubMesh, theShape );
+      aMeshOrSubMesh = PublishSubMesh( theMesh, aSubMesh, theShape );
     }
     if ( aMeshOrSubMesh->_is_nil() )
       return false;
@@ -933,12 +1137,12 @@ bool SMESH_Gen_i::AddHypothesisToShape(SALOMEDS::Study_ptr         theStudy,
   //Find or Create Applied Hypothesis root
   bool aIsAlgo = !SMESH::SMESH_Algo::_narrow( theHyp )->_is_nil();
   SALOMEDS::SObject_wrap AHR =
-    publish (theStudy, CORBA::Object::_nil(), aMeshOrSubMesh,
+    publish (CORBA::Object::_nil(), aMeshOrSubMesh,
              aIsAlgo ? GetRefOnAppliedAlgorithmsTag() : GetRefOnAppliedHypothesisTag(),
              aIsAlgo ? "ICON_SMESH_TREE_ALGO" : "ICON_SMESH_TREE_HYPO", false);
   SetName( AHR, aIsAlgo ? "Applied algorithms" : "Applied hypotheses" );
 
-  addReference( theStudy, AHR, theHyp );
+  addReference( AHR, theHyp );
 
   if(MYDEBUG) MESSAGE("AddHypothesisToShape--END")
   return true;
@@ -949,17 +1153,16 @@ bool SMESH_Gen_i::AddHypothesisToShape(SALOMEDS::Study_ptr         theStudy,
 //purpose  : 
 //=======================================================================
 
-bool SMESH_Gen_i::RemoveHypothesisFromShape(SALOMEDS::Study_ptr         theStudy,
-                                            SMESH::SMESH_Mesh_ptr       theMesh,
+bool SMESH_Gen_i::RemoveHypothesisFromShape(SMESH::SMESH_Mesh_ptr       theMesh,
                                             GEOM::GEOM_Object_ptr       theShape,
                                             SMESH::SMESH_Hypothesis_ptr theHyp)
 {
-  if (theStudy->_is_nil() || theMesh->_is_nil() ||
+  if (theMesh->_is_nil() ||
       theHyp->_is_nil() || (theShape->_is_nil()
                             && theMesh->HasShapeToMesh()))
     return false;
 
-  SALOMEDS::SObject_wrap aHypSO = ObjectToSObject( theStudy, theHyp );
+  SALOMEDS::SObject_wrap aHypSO = ObjectToSObject( theHyp );
   if ( aHypSO->_is_nil() )
     return false;
 
@@ -967,13 +1170,13 @@ bool SMESH_Gen_i::RemoveHypothesisFromShape(SALOMEDS::Study_ptr         theStudy
 
   // Find a mesh or sub-mesh referring to theShape
   SALOMEDS::SObject_wrap aMeshOrSubMesh =
-    GetMeshOrSubmeshByShape( theStudy, theMesh, theShape );
+    GetMeshOrSubmeshByShape( theMesh, theShape );
   if ( aMeshOrSubMesh->_is_nil() )
     return false;
 
   // Find and remove a reference to aHypSO
   SALOMEDS::SObject_wrap aRef, anObj;
-  SALOMEDS::ChildIterator_wrap it = theStudy->NewChildIterator( aMeshOrSubMesh );
+  SALOMEDS::ChildIterator_wrap it = getStudyServant()->NewChildIterator( aMeshOrSubMesh );
   bool found = false;
   for ( it->InitEx( true ); ( it->More() && !found ); it->Next() ) {
     anObj = it->Value();
@@ -984,7 +1187,7 @@ bool SMESH_Gen_i::RemoveHypothesisFromShape(SALOMEDS::Study_ptr         theStudy
     }
     if ( found )
     {
-      SALOMEDS::StudyBuilder_var builder = theStudy->NewBuilder();
+      SALOMEDS::StudyBuilder_var builder = getStudyServant()->NewBuilder();
       builder->RemoveObject( anObj );
     }
   }
@@ -997,22 +1200,18 @@ bool SMESH_Gen_i::RemoveHypothesisFromShape(SALOMEDS::Study_ptr         theStudy
  * \brief Stores names of variables that WILL be passes as parameters when calling
  *        some method of a given object.
  *  \param [in] theObject - the object whose a method WILL be called with \a theParameters.
- *  \param [in] theParameters - a string contating parameters separated by ':'.
+ *  \param [in] theParameters - a string containing parameters separated by ':'.
  */
 //================================================================================
 
 void SMESH_Gen_i::UpdateParameters(CORBA::Object_ptr theObject, const char* theParameters)
 {
-  SALOMEDS::Study_var aStudy = GetCurrentStudy();
-  if ( aStudy->_is_nil() )
-    return;
-
   // find variable names within theParameters
 
   myLastObj.clear();
   myLastParameters.clear();
   myLastParamIndex.clear(); /* vector holding indices of virables within the string
-                               of all varibles used for theObject */ 
+                               of all variables used for theObject */ 
   int nbVars = 0;
   int pos = 0, prevPos = 0, len = strlen( theParameters );
   if ( len == 0 ) return;
@@ -1023,7 +1222,7 @@ void SMESH_Gen_i::UpdateParameters(CORBA::Object_ptr theObject, const char* theP
       if ( prevPos < pos )
       {
         string val( theParameters + prevPos, theParameters + pos );
-        if ( !aStudy->IsVariable( val.c_str() ))
+        if ( !getStudyServant()->IsVariable( val.c_str() ))
           val.clear();
         myLastParameters.push_back( val );
         nbVars += (! myLastParameters.back().empty() );
@@ -1041,18 +1240,18 @@ void SMESH_Gen_i::UpdateParameters(CORBA::Object_ptr theObject, const char* theP
     return;
 
   // store
-  // (1) variable names in the string of all varibles used for theObject and
+  // (1) variable names in the string of all variables used for theObject and
   // (2) indices of found variables in myLastParamIndex.
 
   // remember theObject
-  SALOMEDS::SObject_wrap aSObj =  ObjectToSObject(aStudy,theObject);
+  SALOMEDS::SObject_wrap aSObj =  ObjectToSObject(theObject);
   if ( aSObj->_is_nil() )
     return;
   CORBA::String_var anObjEntry = aSObj->GetID();
   myLastObj = anObjEntry.in();
 
   // get a string of variable names
-  SALOMEDS::StudyBuilder_var   aStudyBuilder = aStudy->NewBuilder();
+  SALOMEDS::StudyBuilder_var   aStudyBuilder = getStudyServant()->NewBuilder();
   SALOMEDS::GenericAttribute_wrap     anAttr =
     aStudyBuilder->FindOrCreateAttribute( aSObj, "AttributeString" );
   SALOMEDS::AttributeString_wrap aStringAttr = anAttr;
@@ -1088,7 +1287,7 @@ void SMESH_Gen_i::UpdateParameters(CORBA::Object_ptr theObject, const char* theP
         if ( pos < varStr.size() )
         {
           varFound = ( varStr.compare( pos, myLastParameters[i].size(), myLastParameters[i] ) == 0 &&
-                       // same string begining but is length same?
+                       // same string beginning but is length same?
                        ( pos + myLastParameters[i].size() >= varStr.size() ||
                          separators.find( varStr[ pos+1 ]) != std::string::npos ));
           if ( varFound )
@@ -1121,15 +1320,11 @@ void SMESH_Gen_i::UpdateParameters(CORBA::Object_ptr theObject, const char* theP
 std::vector< std::string > SMESH_Gen_i::GetAllParameters(const std::string& theObjectEntry) const
 {
   std::vector< std::string > varNames;
-  if ( myCurrentStudy->_is_nil() )
-    return varNames;
 
-  SALOMEDS::SObject_wrap aSObj = myCurrentStudy->FindObjectID( theObjectEntry.c_str() );
-  if ( myCurrentStudy->_is_nil() )
-    return varNames;
+  SALOMEDS::SObject_wrap aSObj = getStudyServant()->FindObjectID( theObjectEntry.c_str() );
 
   // get a string of variable names
-  SALOMEDS::StudyBuilder_var   aStudyBuilder = myCurrentStudy->NewBuilder();
+  SALOMEDS::StudyBuilder_var   aStudyBuilder = getStudyServant()->NewBuilder();
   SALOMEDS::GenericAttribute_wrap     anAttr =
     aStudyBuilder->FindOrCreateAttribute( aSObj, "AttributeString" );
   SALOMEDS::AttributeString_wrap aStringAttr = anAttr;
@@ -1174,7 +1369,7 @@ std::vector< std::string > SMESH_Gen_i::GetAllParameters(const std::string& theO
 //   //const char* aParameters = theParameters;
 // //   const char* aParameters = CORBA::string_dup(theParameters);
 //   TCollection_AsciiString anInputParams;
-//   SALOMEDS::Study_var aStudy = GetCurrentStudy();
+//   SALOMEDS::Study_var aStudy = getStudyServant();
 //   if( !aStudy->_is_nil() ) {
 // //     SALOMEDS::ListOfListOfStrings_var aSections = aStudy->ParseVariables(theParameters);
 // //     for(int j=0;j<aSections->length();j++) {
@@ -1223,7 +1418,7 @@ char* SMESH_Gen_i::GetParameters(CORBA::Object_ptr theObject)
 {
   CORBA::String_var aResult("");
 
-  SALOMEDS::SObject_wrap aSObj = ObjectToSObject( myCurrentStudy, theObject );
+  SALOMEDS::SObject_wrap aSObj = ObjectToSObject( theObject );
   if ( !aSObj->_is_nil() )
   {
     SALOMEDS::GenericAttribute_wrap attr;
@@ -1235,3 +1430,140 @@ char* SMESH_Gen_i::GetParameters(CORBA::Object_ptr theObject)
   }
   return aResult._retn();
 }
+
+//================================================================================
+/*!
+ * \brief Create a sub-mesh on a geometry that is not a sub-shape of the main shape
+ * for the case where a valid sub-shape not found by CopyMeshWithGeom().
+ * The invalid sub-mesh has GetId() < 0.
+ */
+//================================================================================
+
+SMESH::SMESH_subMesh_ptr
+SMESH_Gen_i::createInvalidSubMesh(SMESH::SMESH_Mesh_ptr theMesh,
+                                  GEOM::GEOM_Object_ptr theStrangerGeom,
+                                  const char*           theName)
+{
+  SMESH::SMESH_subMesh_var subMesh;
+
+  try
+  {
+    SMESH_Mesh_i* mesh_i = SMESH::DownCast<SMESH_Mesh_i*>( theMesh );
+    subMesh = mesh_i->createSubMesh( theStrangerGeom );
+
+    if ( !subMesh->_is_nil() && CanPublishInStudy( subMesh ))
+    {
+      SALOMEDS::SObject_wrap so = PublishSubMesh( theMesh, subMesh, theStrangerGeom, theName );
+
+      // hide a reference to geometry
+      if ( !so->_is_nil() )
+      {
+        SALOMEDS::SObject_wrap refSO;
+        if ( so->FindSubObject( GetRefOnShapeTag(), refSO.inout() ))
+        {
+          SALOMEDS::StudyBuilder_var studyBuilder = getStudyServant()->NewBuilder();
+          SALOMEDS::GenericAttribute_wrap attr =
+            studyBuilder->FindOrCreateAttribute( refSO, "AttributeDrawable" );
+          SALOMEDS::AttributeDrawable_wrap ga = attr;
+          ga->SetDrawable( false );
+        }
+      }
+    }
+  }
+  catch (...) {
+  }
+
+  return subMesh._retn();
+}
+
+
+// ==============
+// Study context
+// ==============
+
+//=======================================================================
+//function : addObject
+//purpose  : register object in the internal map and return its id
+//=======================================================================
+
+int StudyContext::addObject( const std::string& theIOR )
+{
+  int nextId = getNextId();
+  mapIdToIOR.Bind( nextId, theIOR );
+  return nextId;
+}
+
+//=======================================================================
+//function : findId
+//purpose  : find the object id in the internal map by the IOR
+//=======================================================================
+
+int StudyContext::findId( const std::string& theIOR )
+{
+  TInt2StringMap::iterator imap;
+  for ( imap = mapIdToIOR.begin(); imap != mapIdToIOR.end(); ++imap ) {
+    if ( *imap == theIOR )
+      return imap.Iterator().Key();
+  }
+  return 0;
+}
+
+//=======================================================================
+//function : getIORbyId
+//purpose  : get object's IOR by id
+//=======================================================================
+
+std::string StudyContext::getIORbyId( const int theId )
+{
+  if ( mapIdToIOR.IsBound( theId ) )
+    return mapIdToIOR( theId );
+  return std::string();
+}
+
+//=======================================================================
+//function : getIORbyOldId
+//purpose  : get object's IOR by old id
+//=======================================================================
+
+std::string StudyContext::getIORbyOldId( const int theOldId )
+{
+  if ( mapIdToId.IsBound( theOldId ) )
+    return getIORbyId( mapIdToId( theOldId ));
+  return std::string();
+}
+
+//=======================================================================
+//function : mapOldToNew
+//purpose  : maps old object id to the new one (used when restoring data)
+//=======================================================================
+
+void StudyContext::mapOldToNew( const int oldId, const int newId )
+{
+  mapIdToId.Bind( oldId, newId );
+}
+
+//=======================================================================
+//function : getOldId
+//purpose  : get old id by a new one
+//=======================================================================
+
+int StudyContext::getOldId( const int newId )
+{
+  TInt2IntMap::iterator imap;
+  for ( imap = mapIdToId.begin(); imap != mapIdToId.end(); ++imap ) {
+    if ( *imap == newId )
+      return imap.Iterator().Key();
+  }
+  return 0;
+}
+
+//=======================================================================
+//function : Clear
+//purpose  : clear data
+//=======================================================================
+
+void StudyContext::Clear()
+{
+  mapIdToIOR.Clear();
+  mapIdToId.Clear();
+}