Tools for Measuring Tracing Times (Intervals/Durations)

[tanjera]

Implement a set of "calipers" to measure intervals and durations? E.g. QRS width, RR interval, PR interval, QT interval, etc.

How would I manage to implement this? Via context/right-click menu? Would automatically pause Tracing... then implement Mouse input handling for from/to (m1 down, m1 up) and then translate into a distance? Scaling based on Tracing control dimensions (width/height)?

Would need to show results ... add a Label in the corner of the Tracing control? Enable the Label if the Tracing is paused? Maybe just auto-enable this feature when the Tracings are paused??

Idea from #181 (comment)