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Re: Tick Reduction

From: Eli Zaretskii
Subject: Re: Tick Reduction
Date: Sat, 20 Nov 2021 11:03:30 +0200

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Sat, 20 Nov 2021 09:43:34 +0100
> Cc: Emacs developers <emacs-devel@gnu.org>, Dmitry Gutov <dgutov@yandex.ru>
> > Does harfbuzz, or something else, provide us with a way to know the
> > x-height of a character?
> I've poked around briefly, and I don't see anything likely.  fc-query
> doesn't say anything about x-height either.  Anybody else know?

Emacs knows that for each character it displays.  (Assuming I
understand what "x-height of a character" means in this context.)  We
get the full metrics of the character from the font, and use that for

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