- assert(first_);
- assert(second_);
-
- first_->paint(p, rect);
- second_->paint(p, rect);
+ const unsigned int prefix = view_.tick_prefix();
+ const double delta = second_->time() - first_->time();
+ return QString("%1 / %2").
+ arg(util::format_time(delta, prefix, 2)).
+ arg(util::format_si_value(1.0 / fabs(delta), "Hz", -1, 4));