From: Eli Zaretskii <eliz@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: Emacs pretest: highlight line number in display-line-numbers-mode?
Date: Fri, 20 Oct 2017 09:34:39 +0300 [thread overview]
Message-ID: <83376ee39c.fsf@gnu.org> (raw)
In-Reply-To: <0da3bf1b-7d66-4462-8097-e9afe759e99d@default> (message from Drew Adams on Thu, 19 Oct 2017 13:43:06 -0700 (PDT))
> Date: Thu, 19 Oct 2017 13:43:06 -0700 (PDT)
> From: Drew Adams <drew.adams@oracle.com>
>
> > This face is by default the same as line-number because of 2 reasons:
> >
> > . linum-mode did the same
>
> ...chasing that rabbit: Why did `linum-mode' do that?
I don't know, but too many differences from a previous feature tend to
annoy people IME.
> > . using a different face makes redisplay slightly slower
> > (because it disallows some redisplay optimizations)
>
> Would those optimizations still be available if a
> user chose the same face for both (but the faces
> were different by default)?
>
> If so, I'd suggest making the faces different by
> default.
They are already different by default. They just have the same
attributes.
> IOW, opt-in for the loss of a difference.
That's already so.
> > > To find the face used, I use `list-faces-display' and look
> > > for either a face name that is a likely candidate
> > > (`line-number' is pretty obvious, in this case) or a face
> > > appearance that matches what I see.
> >
> > There are other places where this doesn't work, e.g. on the
> > mode line.
>
> What do you mean by "this"? Using `list-faces-display'
> or the fact that you can't use `C-u C-x =' to learn
> the face?
The latter.
> You gave that reply after my mention of the former.
> Aren't all of the faces used in the mode line shown in
> `list-faces-display'?
They are, but so are the line-number faces.
next prev parent reply other threads:[~2017-10-20 6:34 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-19 15:19 Emacs pretest: highlight line number in display-line-numbers-mode? Sivaram Neelakantan
2017-10-19 15:37 ` Robert Pluim
2017-10-19 17:18 ` Drew Adams
2017-10-19 20:09 ` Eli Zaretskii
[not found] ` <<834lquew6p.fsf@gnu.org>
2017-10-19 20:43 ` Drew Adams
2017-10-20 6:34 ` Eli Zaretskii [this message]
2017-10-20 13:49 ` Robert Pluim
2017-10-20 14:49 ` Eli Zaretskii
[not found] ` <<87mv4mexpo.fsf@gmail.com>
[not found] ` <<83h8utdgcq.fsf@gnu.org>
2017-10-20 15:18 ` Drew Adams
2017-10-20 15:42 ` Eli Zaretskii
[not found] ` <<83376ee39c.fsf@gnu.org>
2017-10-20 15:18 ` Drew Adams
2017-10-20 15:52 ` Eli Zaretskii
[not found] <<<krpqx3tvyv413v.fsf@gmail.com>
[not found] <<krpqx3tvyv413v.fsf@gmail.com>
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