I think this is a valid suggestion. Better to get rid of a redundant member variable.
Addressed in bdf7cb9f0c17bdeeb8389d4b9140aca65e08ac71
@hebasto
(a) getting rid of TrafficGraphWidget::getGraphRangeMins() and TrafficGraphWidget::nMin, and (b) refactoring of TrafficGraphWidget::setGraphRangeMins() (renaming and parameter type changing) looks really as two focused commits, no?
I agree with your reasoning. However, (a) and (b) are not mutually exclusive, and hence I was having a hard time splitting these two changes while keeping the commits meaningful. Therefore, I reckoned it would be best to make these changes in one commit.