Drag one of a circle's arc knobs (TYP-796) — the canvas owns where they are and what a drag does
(arc_knob_at / drag_arc_knob); this follows the mouse until it is released. One undo step, opened
on the first move so a click on a knob records nothing.
Drag one of a circle's arc knobs (TYP-796) — the canvas owns where they are and what a drag does (arc_knob_at / drag_arc_knob); this follows the mouse until it is released. One undo step, opened on the first move so a click on a knob records nothing.