Function invalidate_overlay_canvas

src/plot_widget.rs:1380–1386

(widget: &PlotWidget)

        bounds,
        |pid| widget.valid_point_id(pid),
    ) {
        picking::HoverRequest::CpuHit(point) => {
            effects.hover_pick = Some(HoverPickEvent::Hover(point));
        }
        picking::HoverRequest::CpuMiss => {
            clear_hover_effect(widget, state, effects);
        }
        picking::HoverRequest::RequestedGpu => {
            // Keep drawing until the result arrives.
            effects.needs_redraw = true;