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bug#8355: 24.0.50; Boxes in mode-line and scrolling
From: |
Eli Zaretskii |
Subject: |
bug#8355: 24.0.50; Boxes in mode-line and scrolling |
Date: |
Tue, 08 Dec 2020 20:29:57 +0200 |
> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: 8355@debbugs.gnu.org, Eli Zaretskii <eliz@gnu.org>
> Date: Tue, 08 Dec 2020 19:18:12 +0100
>
> Antoine Levitt <antoine.levitt@gmail.com> writes:
>
> > Here's a reproducer from emacs -Q (just reproduced on 27.1):
> >
> > Set
> > (setq scroll-conservatively 100000000)
> > (setq scroll-preserve-screen-position 'stay)
> >
> > Open a latex file of some complexity (with sections and math, for
> > instance https://arxiv.org/e-print/2003.00726, but it works on any tex
> > file), and make sure it's in latex-mode. Go somewhere in the middle of
> > the file, center point (C-l), then scroll up then down (C-v and M-v).
>
> Yup; I can reproduce this in Emacs 28 -- point moves around a lot when
> paging back and forth.
I wouldn't say "a lot". On my system it moves by less than a screen
line.
> > I traced it down to
> > lines of varying heights: it disappears if I set
> > (setq font-latex-fontify-script nil)
> > (setq font-latex-fontify-sectioning 'color)
>
> Yes, I guess this is due to the mixture of line heights in that
> buffer -- when it's computing how many lines to scroll back and forth,
> it's not being consistent when going forward and backward.
>
> Eli, does this sound familiar to you?
Not really. I will look into it, in case there's some off-by-one, but
you are probably right about the reason.
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Lars Ingebrigtsen, 2020/12/08
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Antoine Levitt, 2020/12/08
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Lars Ingebrigtsen, 2020/12/08
- bug#8355: 24.0.50; Boxes in mode-line and scrolling,
Eli Zaretskii <=
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Eli Zaretskii, 2020/12/08
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Lars Ingebrigtsen, 2020/12/08
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Eli Zaretskii, 2020/12/08
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Eli Zaretskii, 2020/12/09
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Lars Ingebrigtsen, 2020/12/09
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Eli Zaretskii, 2020/12/09
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Lars Ingebrigtsen, 2020/12/09
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Antoine Levitt, 2020/12/09
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Eli Zaretskii, 2020/12/09
- bug#8355: 24.0.50; Boxes in mode-line and scrolling, Antoine Levitt, 2020/12/11