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Re: What is a default font?
From: |
Eli Zaretskii |
Subject: |
Re: What is a default font? |
Date: |
Sat, 07 Dec 2019 12:29:51 +0200 |
> Cc: address@hidden, address@hidden
> From: martin rudalics <address@hidden>
> Date: Sat, 7 Dec 2019 10:39:51 +0100
>
> Thanks. But you left the doc-string of 'face-font' alone. That
> doc-string still says that
>
> If FRAME is t, report on the defaults for face FACE (for new frames).
>
> which is wrong according to Stefan
>
> Yes, you can, but only if you know in which frame it will be displayed
> (or you can approximate it by using a frame "similar" to the one that
> will be used).
>
> and you
>
> For a frame that was not yet created there are too many unknowns
> for face-font to be able to help you efficiently. The best you can do
> is assume the new frame will have the same faces as the selected one.
This is a misunderstanding. What I meant to say was that when a new
frame is created, we usually apply frame-parameters from all kinds of
sources, and that is what I referred to as "unknowns". barring that,
the above line is accurate, albeit you may see it as useless in your
use case.
> What I'm still unsure about is the following paragraph in the Elisp
> manual:
>
> If ‘face-remapping-alist’ is buffer-local, its local value takes
> effect only within that buffer. If ‘face-remapping-alist’ includes
> faces applicable only to certain windows, by using the
> ‘(:filtered (:window PARAM VAL) SPEC)’, that face takes effect only
> in windows that match the filter conditions (*note Special
> Properties::). To turn off face filtering temporarily, bind
> ‘face-filters-always-match’ to a non-‘nil’ value, then all face
> filters will match any window.
>
> From this I'd conclude that I might have to explicitly select a
> specific window (and not just its frame) before calling any of the
> functions 'default-font-height', 'face-font', ... in order to process
> 'face-remapping-alist' correctly. Is that conclusion correct? If so,
> the descriptions of these functions should tell that.
It depends on what you are going to use the results of
default-font-height etc. for. And I'd consider it a bug, or at least
a misfeature, to have the default face filtered like that anyway.
- Re: What is a default font?, (continued)
- Re: What is a default font?, martin rudalics, 2019/12/05
- Re: What is a default font?, Eli Zaretskii, 2019/12/05
- Re: What is a default font?, martin rudalics, 2019/12/05
- Re: What is a default font?, Eli Zaretskii, 2019/12/05
- Re: What is a default font?, martin rudalics, 2019/12/06
- Re: What is a default font?, Eli Zaretskii, 2019/12/06
- Re: What is a default font?, martin rudalics, 2019/12/07
- Re: What is a default font?, Eli Zaretskii, 2019/12/07
- Re: What is a default font?, Eli Zaretskii, 2019/12/06
- Re: What is a default font?, martin rudalics, 2019/12/07
- Re: What is a default font?,
Eli Zaretskii <=
- Re: What is a default font?, martin rudalics, 2019/12/08
- Re: What is a default font?, Eli Zaretskii, 2019/12/08