fn varied_control_box<'a>(
context: &'a dyn OutlineContext<'a>,
glyph: GlyphId,
) -> Option<GlyphExtents<F48Dot16>>Expand description
The box a glyph’s points stay within, at the location tables states.
How much scratch space a glyph takes is known only once its plan is read,
and it is finished with by the time this returns, so the space comes from
with_scratch rather than an allocation per glyph.