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Re: Tick Reduction

From: Lars Ingebrigtsen
Subject: Re: Tick Reduction
Date: Sun, 21 Nov 2021 21:17:07 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux)

Eli Zaretskii <eliz@gnu.org> writes:

> They are numbers, so they can change the width because different
> digits have different width.

No, they don't (in the vast majority of proportional fonts).

>> I don't understand what you mean by that.  Could you explain and give an
>> example?
> I've shown different fields for the mode line below:
>  -\**-  *mail*         Bot L30    (Mail Fly/en Abbrev Fill) 9:41PM 0.08 [100%]
>  +++++  +----------+   +-+ +-+    +-----------------------+ +----+ +--+ +----+
> A single + means a field of 1 character cell; a +---+ means a field
> that starts and ends at the +.  The idea is that each field always
> starts at a predefined pixel offset from the beginning of the mode
> line.  The each field can change its width, but it will not affect the
> following fields.

Here's two random mode lines:

PNG image

PNG image

The absolute positions of the fields are extremely different from mode
to mode -- in the first one, the name takes half the space, and in the
other one, everything starts a lot nearer to the left.

So I don't see how we could practically define a fixed-width field mode
line: The mode line formats are pretty different between modes and users
and how you combine different things.

(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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