bos #19219 [CEA] SIGSEGV when right-click in the view in 3D layers dialog box

[modules/smesh.git] / src / SMESHGUI / SMESHGUI_Selection.cxx

diff --git a/src/SMESHGUI/SMESHGUI_Selection.cxx b/src/SMESHGUI/SMESHGUI_Selection.cxx
index fbc43c922d46b397ad32b2e0236898043b67c281..5abe5c5be61812c0d1b17777e7a921e28c191f5a 100644 (file)
--- a/src/SMESHGUI/SMESHGUI_Selection.cxx
+++ b/src/SMESHGUI/SMESHGUI_Selection.cxx
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2020  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
@@ -140,6 +140,7 @@ QVariant SMESHGUI_Selection::parameter( const int ind, const QString& p ) const
   else if ( p=="nbChildren")            val = QVariant( nbChildren( ind ) );
   else if ( p=="isContainer")           val = QVariant( isContainer( ind ) );
   else if ( p=="guiState")              val = QVariant( guiState() );
+  else if ( p=="canBreakLink")          val = QVariant( canBreakLink(ind) );
 
   if ( val.isValid() )
     return val;
@@ -605,6 +606,35 @@ bool SMESHGUI_Selection::hasGeomReference( int ind ) const
   return false;
 }
 
+//=======================================================================
+//function : canBreakLink
+//purpose  : returns true if selected object is a Shaper object and it can break link
+//=======================================================================
+
+bool SMESHGUI_Selection::canBreakLink( int ind ) const
+{
+  if ( ind >= 0 && isReference(ind) ) {
+    QString aEntry = objectInfo(ind, OI_RefEntry).toString();
+    if (!aEntry.isEmpty()) {
+      _PTR(SObject) aSObject = SMESH::getStudy()->FindObjectID( aEntry.toStdString());
+      if (aSObject) {
+       _PTR(SObject) aFatherObj = aSObject->GetFather();
+       if (aFatherObj) {
+         _PTR(SComponent) aComponent = aFatherObj->GetFatherComponent();
+         if (aComponent && aComponent->ComponentDataType() == "SMESH") {
+           QString aObjEntry = entry(ind);
+           _PTR(SObject) aGeomSObject = SMESH::getStudy()->FindObjectID(aObjEntry.toStdString());
+           GEOM::GEOM_Object_var aObject = SMESH::SObjectToInterface<GEOM::GEOM_Object>(aGeomSObject);
+           if (!aObject->_is_nil())
+             return aObject->IsParametrical();
+          }
+        }
+      }
+    }
+  }
+  return false;
+}
+
 //=======================================================================
 //function : isEditableHyp
 //purpose  :