refs #712: show warning in GUI, if the number of land covers is not changed after...

diff --git a/src/HYDROData/HYDROData_LandCoverMap.cxx b/src/HYDROData/HYDROData_LandCoverMap.cxx
index 1187916c6dbf3742c3dd1183261a87c6154a517d..74775ac9563b8705686ddcaa7a4d864dd31258ab 100644 (file)
--- a/src/HYDROData/HYDROData_LandCoverMap.cxx
+++ b/src/HYDROData/HYDROData_LandCoverMap.cxx
@@ -573,7 +573,9 @@ bool HYDROData_LandCoverMap::Split( const Handle( HYDROData_PolylineXY )& thePol
 */
 bool HYDROData_LandCoverMap::Split( const TopoDS_Shape& theShape )
 {
-  return LocalPartition( theShape, "" );
+  int aNbCL = GetLCCount();
+  bool aResult = LocalPartition( theShape, "" );
+  return aResult && aNbCL != GetLCCount();
 }