Prevent deletion of a group servant when a group on filter is edited w/o activating...

[modules/smesh.git] / src / SMESH_I / SMESH_Group_i.cxx

diff --git a/src/SMESH_I/SMESH_Group_i.cxx b/src/SMESH_I/SMESH_Group_i.cxx
index 76dae46734525895a5d4f03339a742e0e1c7cb07..d55846adebfc7455bb74af7b3ca29083cb5a9b42 100644 (file)
--- a/src/SMESH_I/SMESH_Group_i.cxx
+++ b/src/SMESH_I/SMESH_Group_i.cxx
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2013  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
@@ -411,9 +411,9 @@ CORBA::Long SMESH_Group_i::AddFrom( SMESH::SMESH_IDSource_ptr theSource )
   long prevNb = Size();
   SMESHDS_Group* aGroupDS = dynamic_cast<SMESHDS_Group*>( GetGroupDS() );
   if (aGroupDS) {
-    SMDS_ElemIteratorPtr elemIt = SMESH_Mesh_i::GetElements( theSource, GetType() );
-    while ( elemIt->more() )
-      aGroupDS->SMDSGroup().Add( elemIt->next() );
+    if ( SMDS_ElemIteratorPtr elemIt = SMESH_Mesh_i::GetElements( theSource, GetType() ))
+      while ( elemIt->more() )
+        aGroupDS->SMDSGroup().Add( elemIt->next() );
   }
 
   // Update Python script
@@ -774,6 +774,9 @@ SMESH_PredicatePtr SMESH_GroupOnFilter_i::GetPredicate( SMESH::Filter_ptr filter
 
 void SMESH_GroupOnFilter_i::SetFilter(SMESH::Filter_ptr theFilter)
 {
+  if ( myFilter->_is_equivalent( theFilter ))
+    return;
+
   if ( myPreMeshInfo )
     myPreMeshInfo->FullLoadFromFile();