--- Begin Message ---
|
Subject: |
30.0.50; set-face-attribute can not set the medium weight of IBM Plex Mono on Windows 10 |
|
Date: |
Sat, 22 Jul 2023 09:23:28 +0800 |
Hi Emacs,
I tried to use the medium weight of IBM Plex Mono font on Windows 10,
and find that `set-face-attribute` can not make it works as expectd.
Steps to reproduce:
1. Download IBM Plex Mono font by this link:
https://github.com/IBM/plex/releases/download/v6.3.0/TrueType.zip
2. Unzip the TrueType.zip and install the IBM Plex Mono
3. Start Emacs with `emacs -Q`
4. In the `*scratch*` buffer, eval the code below:
```
(set-face-attribute 'default nil :font (format
"%s:pixelsize=%d:weight=medium" "IBM Plex Mono" 20))
```
5. `M-x describe-char`, will get info about font as below:
harfbuzz:-outline-IBM Plex
Mono-regular-normal-normal-mono-20-*-*-*-c-*-iso8859-1 (#x03)
And you can see the regular weight is used instead.
expectd: return the medium weight of font.
The workaround recently I used:
```
(set-face-attribute 'default nil :font (format
"%s:pixelsize=%d:weight=medium" "IBM Plex Mono Medm" 20))
```
`M-x describe-char`, will get info about font as below:
harfbuzz:-outline-IBM Plex Mono
Medm-medium-normal-normal-mono-20-*-*-*-c-*-iso8859-1 (#x18)
But use the `IBM Plex Mono Medm` name is not convenient for me, because
I also want to switch to other weights sometimes, such as:
```
(set-face-attribute 'default nil :font (format "%s:pixelsize=%d:weight=regular"
"IBM Plex Mono" 20))
(set-face-attribute 'default nil :font (format "%s:pixelsize=%d:weight=bold"
"IBM Plex Mono" 20))
```
It would be more consistent If we can use the `IBM Plex Mono` font name
with all font weights.
Meanwhile, I aslo tested `set-face-attribute` on macOS, it works as expected
with
the same font setting.
If you need more information, please let me known.
--
Best regard, Eason Huang
GNU Emacs 30.0.50 (build 1, x86_64-w64-mingw32, git sha1 207cd4c2357) of
2023-07-17
Windowing system distributor 'Microsoft Corp.', version 10.0.19045
System Description: Microsoft Windows 10 Pro (v10.0.2009.19045.3208)
Configured using:
'configure --without-native-compilation --without-dbus'
Configured features:
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Important settings:
value of $LANG: CHS
locale-coding-system: cp936
Major mode: Lisp Interaction
Minor modes in effect:
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global-eldoc-mode: t
eldoc-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
line-number-mode: t
indent-tabs-mode: t
transient-mark-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
Load-path shadows:
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Features:
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Memory information:
((conses 16 74158 21444) (symbols 48 20879 3) (strings 32 82668 1435)
(string-bytes 1 1859302) (vectors 16 14862)
(vector-slots 8 648806 16252) (floats 8 48 96) (intervals 56 1249 33)
(buffers 984 16))
--- End Message ---
--- Begin Message ---
|
Subject: |
Re: bug#64780: 30.0.50; set-face-attribute can not set the medium weight of IBM Plex Mono on Windows 10 |
|
Date: |
Sat, 22 Jul 2023 11:53:26 +0300 |
> From: Eason Huang <aqua0210@foxmail.com>
> Cc: 64780@debbugs.gnu.org
> Date: Sat, 22 Jul 2023 15:21:46 +0800
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> >> From: Eason Huang <aqua0210@foxmail.com>
> >> Date: Sat, 22 Jul 2023 09:23:28 +0800
> >>
> >> I tried to use the medium weight of IBM Plex Mono font on Windows 10,
> >> and find that `set-face-attribute` can not make it works as expectd.
> >>
> >> Steps to reproduce:
> >>
> >> 1. Download IBM Plex Mono font by this link:
> >> https://github.com/IBM/plex/releases/download/v6.3.0/TrueType.zip
> >> 2. Unzip the TrueType.zip and install the IBM Plex Mono
> >> 3. Start Emacs with `emacs -Q`
> >> 4. In the `*scratch*` buffer, eval the code below:
> >> ```
> >> (set-face-attribute 'default nil :font (format
> >> "%s:pixelsize=%d:weight=medium" "IBM Plex Mono" 20))
> >>
> >> ```
> >> 5. `M-x describe-char`, will get info about font as below:
> >> harfbuzz:-outline-IBM Plex
> >> Mono-regular-normal-normal-mono-20-*-*-*-c-*-iso8859-1 (#x03)
> >>
> >> And you can see the regular weight is used instead.
> >
> > Emacs on MS-Windows doesn't fully support any weights except these 4
> > standard ones: regular, italic, bold, bold-italic. AFAIU, it is a
> > limitation of the APIs we use on Windows to enumerate font families.
>
> Thanks for your explanation.
>
> >> The workaround recently I used:
> >>
> >> ```
> >> (set-face-attribute 'default nil :font (format
> >> "%s:pixelsize=%d:weight=medium" "IBM Plex Mono Medm" 20))
> >> ```
> >> `M-x describe-char`, will get info about font as below:
> >> harfbuzz:-outline-IBM Plex Mono
> >> Medm-medium-normal-normal-mono-20-*-*-*-c-*-iso8859-1 (#x18)
> >>
> >> But use the `IBM Plex Mono Medm` name is not convenient for me, because
> >> I also want to switch to other weights sometimes, such as:
> >>
> >> ```
> >> (set-face-attribute 'default nil :font (format
> >> "%s:pixelsize=%d:weight=regular" "IBM Plex Mono" 20))
> >> (set-face-attribute 'default nil :font (format
> >> "%s:pixelsize=%d:weight=bold" "IBM Plex Mono" 20))
> >> ```
> >> It would be more consistent If we can use the `IBM Plex Mono` font name
> >> with all font weights.
> >
> > Yes, those are all aspects of the above limitation. You could
> > configure the other faces (bold, italic, and bold-italic) explicitly
> > to use the specific members of this font's family, like you did with
> > the default face and the medium weight, but the basic problem I
> > explained above will from time to time rear its ugly head and produce
> > some unexpected results, when Emacs mutates a font to produce another
> > weight of the same family.
>
> Thanks for mention the potential risk.
> So I will just use the regular weight on Windows if encounter issue.
OK, so I don't think we have anything else to do here, and I'm
therefore closing this bug.
--- End Message ---