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bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk
From: |
Eli Zaretskii |
Subject: |
bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk |
Date: |
Fri, 12 Jan 2024 14:30:21 +0200 |
> From: Po Lu <luangruo@yahoo.com>
> Cc: crypto@timruffing.de, stefankangas@gmail.com, 67810@debbugs.gnu.org
> Date: Fri, 12 Jan 2024 20:20:00 +0800
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > If we do introduce such a variable, wouldn't it prevent Emacs from
> > generating the missing variants?
>
> On the contrary: if the generation of such variants by the font backend
> is inhibited, Emacs will display bold text with overstriking, when these
> variants are absent from the font itself.
>
> I should clarify that "generation" refers to the automatic generation of
> oblique or bold fonts undertaken by a handful of our font backends, not
> the overstriking implemented in xfaces.c.
Then we are mis-communicating, I think: I was talking about the code
in xfaces.c to which you pointed up-thread:
> > Can you point me at the place in the code where we do this?
>
> Yes, see lines 6192 and 6045 in xfaces.c, viz.:
>
> if (face->font
> && FONT_WEIGHT_NAME_NUMERIC (attrs[LFACE_WEIGHT_INDEX]) > 100
> && FONT_WEIGHT_NUMERIC (attrs[LFACE_FONT_INDEX]) <= 100)
> face->overstrike = true;
>
> and
>
> face->overstrike
> = (! NILP (font_object)
> && FONT_WEIGHT_NAME_NUMERIC (face->lface[LFACE_WEIGHT_INDEX]) > 100
> && FONT_WEIGHT_NUMERIC (font_object) <= 100);
I ws suggesting to introduce a variable that would inhibit this.
> > And wouldn't avoiding to generate them do what the OP wanted,
> > i.e. have a default face's font where bold looks like regular?
>
> No, see above. However, the matter at hand is that I can't understand
> the deficiency OPs request is supposed to address. Surely, if the
> author of a package which inserts icons wishes that they not be bold,
> the package should set the face by which they are displayed to one that
> isn't?
AFAIU, the OP's request was to allow to have a default font that lacks
the bold variant, so that the bold face attribute could be displayed
in some other way, or maybe not at all.
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Tim Ruffing, 2024/01/11
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Po Lu, 2024/01/11
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Eli Zaretskii, 2024/01/12
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Po Lu, 2024/01/12
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Eli Zaretskii, 2024/01/12
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Po Lu, 2024/01/12
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk,
Eli Zaretskii <=
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Po Lu, 2024/01/12
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Eli Zaretskii, 2024/01/12
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Po Lu, 2024/01/12
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Eli Zaretskii, 2024/01/13
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Po Lu, 2024/01/13
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Eli Zaretskii, 2024/01/14
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Po Lu, 2024/01/14
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Eli Zaretskii, 2024/01/14
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Po Lu, 2024/01/14
- bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk, Eli Zaretskii, 2024/01/14