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bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows
From: |
Eli Zaretskii |
Subject: |
bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows |
Date: |
Sat, 09 Sep 2023 17:39:56 +0300 |
> From: Po Lu <luangruo@yahoo.com>
> Cc: shingo.fg8@gmail.com, 65803@debbugs.gnu.org
> Date: Sat, 09 Sep 2023 21:38:32 +0800
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > Thanks, but the above snippet in ftfont.c is only done for
> > proportional fonts, not for fixed-pitch fonts. Is the font in
> > question, Noto Sans Mono CJK JP, a proportional font? That is, does
> > it not set the fixed-pitch attribute?
>
> There's no spacing attribute in TrueType fonts, so that is contingent
> upon how the MS Windows font scaler detects fixed pitch fonts. Here's
> how ftfont.c calculates the average width for fonts that Fontconfig
> deems fixed pitch:
>
> font->min_width = font->average_width = font->space_width
> = (scalable ? ft_face->max_advance_width * size / upEM + 0.5
> : ft_face->size->metrics.max_advance >> 6);
What is metrics.max_advance, in terms of the attributes recorded in
the font file?
> That aside, Fontconfig does not judge Noto Sans Mono CJK JP a fixed
> pitch font on my system.
OK, that might explain part of the issue, thanks.
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, (continued)
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/08
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Shingo Tanaka, 2023/09/08
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/08
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Po Lu, 2023/09/08
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Werner LEMBERG, 2023/09/08
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/09
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Po Lu, 2023/09/09
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/09
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/09
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Po Lu, 2023/09/09
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows,
Eli Zaretskii <=
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/09
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Po Lu, 2023/09/09
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/10
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Po Lu, 2023/09/10
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/10
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Po Lu, 2023/09/10
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/10
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Po Lu, 2023/09/10
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Eli Zaretskii, 2023/09/10
- bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows, Po Lu, 2023/09/10