- QString id = hydroObject->text( hydroObject->customData( Qtx::IdType ).toInt() );
- Qtx::VisibilityState visState = treeModel->visibilityState( id );
- if ( visState != Qtx::UnpresentableState )
+ if ( treeModel )
+ {
+ QString id = hydroObject->text( hydroObject->customData( Qtx::IdType ).toInt() );
+ Qtx::VisibilityState visState = treeModel->visibilityState( id );
+ if ( visState != Qtx::UnpresentableState )