* Problem with font selection / BigSur OS
@ 2020-11-28 17:03 Nicolas P. Rougier
2020-11-29 12:40 ` Daniel Martín
0 siblings, 1 reply; 3+ messages in thread
From: Nicolas P. Rougier @ 2020-11-28 17:03 UTC (permalink / raw)
To: emacs-devel
After upgrading to BigSur OS (Apple) and using EmacsMac 27.1, I'm
unable to select some font weights. It worked with previous
version (Catalina) and I think this is not related to any Emacs
change. I would thus like to understand why it fails but I don't
know where to look for the code responsible to select a font given
a spec.
More precisely, for the following three lines, the last one
evaluates to nil:
(find-font (font-spec :family "Roboto Mono" :weight 'regular))
(find-font (font-spec :family "Roboto Mono" :weight 'thin))
(find-font (font-spec :family "Roboto Mono" :weight 'light))
while the equivalent using fc-match on a terminal returns the
correct filename:
fc-match "Roboto Mono:style=Regular"
fc-match "Roboto Mono:style=Thin"
fc-match "Roboto Mono:style=Light"
From this, I can deduce Emacs doesn't use fontconfig on mac but
then I don't know which method is used instead.
Nicolas
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Problem with font selection / BigSur OS
2020-11-28 17:03 Problem with font selection / BigSur OS Nicolas P. Rougier
@ 2020-11-29 12:40 ` Daniel Martín
2020-11-29 13:04 ` Nicolas P. Rougier
0 siblings, 1 reply; 3+ messages in thread
From: Daniel Martín @ 2020-11-29 12:40 UTC (permalink / raw)
To: Nicolas P. Rougier; +Cc: emacs-devel
"Nicolas P. Rougier" <nicolas.rougier@inria.fr> writes:
>
> From this, I can deduce Emacs doesn't use fontconfig on mac but then I
> don't know which method is used instead.
>
See nsfont.m, which is the font backend driver for macOS/GNUstep. If
you set NSFONT_TRACE to 1 and recompile Emacs, you'll have additional
debug trace information that may be useful.
You could also report this problem with M-x report-emacs-bug, for better
visibility/tracking.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Problem with font selection / BigSur OS
2020-11-29 12:40 ` Daniel Martín
@ 2020-11-29 13:04 ` Nicolas P. Rougier
0 siblings, 0 replies; 3+ messages in thread
From: Nicolas P. Rougier @ 2020-11-29 13:04 UTC (permalink / raw)
To: Daniel Martín; +Cc: emacs-devel
Thanks, I've sent a bug report.
Nicolas
Daniel Martín <mardani29@yahoo.es> writes:
> "Nicolas P. Rougier" <nicolas.rougier@inria.fr> writes:
>>
>> From this, I can deduce Emacs doesn't use fontconfig on mac but
>> then I
>> don't know which method is used instead.
>>
>
> See nsfont.m, which is the font backend driver for
> macOS/GNUstep. If
> you set NSFONT_TRACE to 1 and recompile Emacs, you'll have
> additional
> debug trace information that may be useful.
>
> You could also report this problem with M-x report-emacs-bug,
> for better
> visibility/tracking.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-11-28 17:03 Problem with font selection / BigSur OS Nicolas P. Rougier
2020-11-29 12:40 ` Daniel Martín
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