private:
void createPreview( const bool theLandCover);
- void closePreview();
+ void closePreview( bool theRemoveViewManager = true );
void setObjectVisibility( Handle(HYDROData_Entity) theEntity, const bool theIsVisible );
void setZonesVisible( bool theIsVisible, const bool theLandCover );
void getNamesAndEntries( const HYDROData_SequenceOfObjects& theSeq,