+ p.setRenderHint(QPainter::Antialiasing);
+
+ // The cursor labels are not drawn with the arrows exactly on the
+ // bottom line of the widget, because then the selection shadow
+ // would be clipped away.
+ const QRect r = rect().adjusted(0, 0, 0, -ViewItem::HighlightRadius);
+
+ // Draw the items
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto &i : items) {
+ const bool highlight = !item_dragging_ &&
+ i->label_rect(r).contains(mouse_point_);
+ i->paint_label(p, r, highlight);
+ }
+}
+
+Ruler::TickPositions Ruler::calculate_tick_positions(
+ const pv::util::Timestamp& major_period,
+ const pv::util::Timestamp& offset,
+ const double scale,
+ const int width,
+ std::function<QString(const pv::util::Timestamp&)> format_function)
+{
+ TickPositions tp;
+
+ const pv::util::Timestamp minor_period = major_period / MinorTickSubdivision;
+ const pv::util::Timestamp first_major_division = floor(offset / major_period);
+ const pv::util::Timestamp first_minor_division = ceil(offset / minor_period);
+ const pv::util::Timestamp t0 = first_major_division * major_period;
+
+ int division = (round(first_minor_division -
+ first_major_division * MinorTickSubdivision)).convert_to<int>() - 1;
+
+ double x;
+
+ do {
+ pv::util::Timestamp t = t0 + division * minor_period;
+ x = ((t - offset) / scale).convert_to<double>();
+
+ if (division % MinorTickSubdivision == 0) {
+ // Recalculate 't' without using 'minor_period' which is a fraction
+ t = t0 + division / MinorTickSubdivision * major_period;
+ tp.major.emplace_back(x, format_function(t));
+ } else {
+ tp.minor.emplace_back(x);
+ }
+
+ division++;
+ } while (x < width);
+
+ return tp;
+}
+
+void Ruler::mouseDoubleClickEvent(QMouseEvent *e)
+{
+ view_.add_flag(view_.offset() + ((double)e->x() + 0.5) * view_.scale());