GNU bug report logs - #54564
29.0.50; [PATCH] Use gsettings font rendering entries for pgtk builds

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From: Po Lu <luangruo <at> yahoo.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 54564 <at> debbugs.gnu.org, pieter.van.prooijen <at> teloden.nl
Subject: bug#54564: 29.0.50; [PATCH] Use gsettings font rendering entries for pgtk builds
Date: Sat, 26 Mar 2022 14:07:21 +0800

Eli Zaretskii <eliz <at> gnu.org> writes:

> Maybe I could help if I understood the difficulty well enough.  What
> exactly is the problem here?  In particular, what is meant by "force a
> re-creation of the font with the changed parameters"?  How can Emacs
> "re-create" a font?

Basically, Emacs needs to close every open font object created by the
ftcr (or ftcrhb) font driver, and open it again, if that makes any
sense.

> AFAIU, this uses gsettings to determine some Emacs font-related
> functionality.  One aspect that bothers me is whether users will have
> the means to tell Emacs to ignore those gsettings and use the usual
> Emacs defaults instead?  I don't think it's a good idea to apply those
> gsettings unconditionally without letting users override that.

I think all the gsettings-related behavior is controlled by
`font-use-system-font', but if it's not, we could always make it work
that way, or add a new variable.

Thanks.

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