From: Keith David Bershatsky <esq@lawlist.com>
To: Alan Third <alan@idiocy.org>
Cc: 36633@debbugs.gnu.org
Subject: bug#36633: Scrolling by pixels: visible stretch glyphs overwrite header-line.
Date: Sun, 14 Jul 2019 09:47:25 -0700 [thread overview]
Message-ID: <m2pnmcd0ma.wl%esq@lawlist.com> (raw)
In-Reply-To: <m2v9w6bs63.wl%esq@lawlist.com>
Here are links to two (2) youtube videos showing the issue on Emacs 26.1 (built by https://emacsformacosx.com/ a few months ago) and also the master branch that I built using a commit from 07/10/2019 (40cd6278ba965f3a9fcdddc568eb9ee7c69cf899). I don't have a 26.2 build at the moment. The issue is less noticeable on the master branch, but can still be seen nevertheless. I have not studied the code as to what makes this feature work, but offhand would think that the header-line should not be overwritten by the row moving upwards (rather than updated after it has been overwritten).
Emacs 26.1: https://youtu.be/Y8cZfURSwZc
Emacs Master Branch: https://youtu.be/BO3r9_6OvYo
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> Date: [07-14-2019 03:39:35] <14 Jul 2019 11:39:35 +0100>
> From: Alan Third <alan@idiocy.org>
>
> * * *
>
> Hi Keith, I can't replicate this behaviour. The worst I see is some
> flickering of the header line, which is unfortunately to be expected
> from the current implementation.
>
> When you do it is the header line being overwritten and not immediately updated?
> --
> Alan Third
next prev parent reply other threads:[~2019-07-14 16:47 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-13 2:10 bug#36633: Scrolling by pixels: visible stretch glyphs overwrite header-line Keith David Bershatsky
2019-07-13 6:19 ` Eli Zaretskii
2019-07-13 8:32 ` Stefan Kangas
2019-07-13 8:39 ` Eli Zaretskii
2019-07-14 10:39 ` Alan Third
2019-07-14 16:47 ` Keith David Bershatsky [this message]
2019-07-15 12:26 ` Tak Kunihiro
2019-07-16 20:38 ` Alan Third
2019-07-14 16:52 ` Keith David Bershatsky
2019-07-17 6:34 ` Keith David Bershatsky
2019-07-17 18:31 ` Alan Third
2019-07-17 19:08 ` Keith David Bershatsky
2019-07-17 23:31 ` Tak Kunihiro
2019-07-18 3:56 ` Keith David Bershatsky
2019-07-27 17:32 ` Alan Third
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