[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows
From: |
Po Lu |
Subject: |
bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows |
Date: |
Sun, 10 Sep 2023 15:55:56 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Po Lu <luangruo@yahoo.com>
>> Cc: shingo.fg8@gmail.com, 65803@debbugs.gnu.org
>> Date: Sun, 10 Sep 2023 15:31:36 +0800
>>
>> Eli Zaretskii <eliz@gnu.org> writes:
>>
>> > See above: other backends only calculate the average width for
>> > proportional fonts. So what you say doesn't fit my reading of the
>> > code.
>>
>> Because if spacing is not FC_PROPORTIONAL or FC_DUAL, we know in advance
>> that max_advance_width or max_advance are identical to the average of
>> all ASCII glyphs. Such special treatment is an optimization, nothing
>> more. max_advance_width is the advance width (in em space) of the
>> widest glyph when the font is scalable, and max_advance is that in pixel
>> space if not.
>
> So you think it's okay to do the same in the w32 font backend,
> i.e. take the average width from the font when the font is known to be
> fixed-pitch? If not, please elaborate, because that's what I
> understand from what you wrote above.
I don't think it's okay, because the W32 font backend judges fonts that
are not fixed pitch to be so; Noto Sans Mono CJK JP, for example.
- 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, 2023/09/09
- 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, 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 <=
- 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, 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