pub fn bar_text(bar: &Bar<'_>) -> Option<String>Expand description
What a bar says when a pointer rests on it, or nothing.
The reading and the note, in that order, joined the way the description did
not: Bar::reading and Bar::note arrive worded separately so a
terminal at one line and a tooltip can want different sentences, which is
crate::meter::meter_text’s split exactly.
The place on the axis is deliberately not in here. It is drawn under the bar as its own label, so repeating it in the tooltip is the readout arguing with itself.