Protection from crash.

diff --git a/src/HYDROData/HYDROData_Obstacle.cxx b/src/HYDROData/HYDROData_Obstacle.cxx
index 2b8c7cb6f0829e386ef118f38eae33013fa89c16..22fcb0f58a6fe263cfe36fbb799a82cf30898685 100644 (file)
--- a/src/HYDROData/HYDROData_Obstacle.cxx
+++ b/src/HYDROData/HYDROData_Obstacle.cxx
@@ -143,9 +143,13 @@ QString HYDROData_Obstacle::GetFilePath() const
 {
   QString aRes;
 
-  Handle(TDataStd_AsciiString) anAsciiStr;
-  if ( myLab.FindChild( DataTag_FilePath ).FindAttribute( TDataStd_AsciiString::GetID(), anAsciiStr ) )
-    aRes = QString( anAsciiStr->Get().ToCString() );
+  TDF_Label aLabel = myLab.FindChild( DataTag_FilePath, false );
+  if ( !aLabel.IsNull() )
+  {
+    Handle(TDataStd_AsciiString) anAsciiStr;
+    if ( aLabel.FindAttribute( TDataStd_AsciiString::GetID(), anAsciiStr ) )
+      aRes = QString( anAsciiStr->Get().ToCString() );
+  }
 
   return aRes;
 }
@@ -160,9 +164,13 @@ QString HYDROData_Obstacle::GetGeomObjectEntry() const
 {
   QString aRes;
 
-  Handle(TDataStd_AsciiString) anAsciiStr;
-  if ( myLab.FindChild( DataTag_GeomObjectEntry ).FindAttribute( TDataStd_AsciiString::GetID(), anAsciiStr ) )
-    aRes = QString( anAsciiStr->Get().ToCString() );
+  TDF_Label aLabel = myLab.FindChild( DataTag_GeomObjectEntry, false );
+  if ( !aLabel.IsNull() )
+  {
+    Handle(TDataStd_AsciiString) anAsciiStr;
+    if ( aLabel.FindAttribute( TDataStd_AsciiString::GetID(), anAsciiStr ) )
+      aRes = QString( anAsciiStr->Get().ToCString() );
+  }
 
   return aRes;
 }