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