Method setReferenceLine

pj_app/src/SourceTimelineController.cpp:287–295

}

void SourceTimelineController::setReferenceLine(std::optional<double> playback_seconds) {
  // The widget shifts the playback-frame value into the bar frame in integer ns
  // (via the time-frame offset), so pass it straight through.
  if (playback_seconds.has_value()) {
    widget_->setReferenceLine(*playback_seconds, /*visible=*/true);
  } else {
    widget_->setReferenceLine(0.0, /*visible=*/false);
  }
}

void SourceTimelineController::onMergeRequested(const QList<quint64>& ids) {
  std::vector<DatasetId> datasets;