From: Vincent Lefevre <vincent@vinc17.net>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 44284@debbugs.gnu.org
Subject: bug#44284: 27.1; with some Unicode font, scrolling upward with the mouse wheel actually scrolls downward when the cursor needs repositioning
Date: Sat, 31 Oct 2020 23:43:24 +0100 [thread overview]
Message-ID: <20201031224324.GK27593@zira.vinc17.org> (raw)
In-Reply-To: <83r1pe975u.fsf@gnu.org>
On 2020-10-31 09:38:37 +0200, Eli Zaretskii wrote:
> I think the issue might be elsewhere: in the code that decides to
> scroll such that this particular screen line ends up being the last
> one, and/or that point should be on this last line. If this happens,
> we will always recenter or move point off that screen line. So the
> right place to look could be in the scrolling code, probably in
> window_scroll_pixel_based.
window_scroll_pixel_based is not called at all, neither window_scroll
is.
What is wrong seems to be the initial position of the text in the
window. Indeed, with xmag (magnifier), I can see that the glyphs
are shifted one line downward. Now, I don't know where to look at.
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
next prev parent reply other threads:[~2020-10-31 22:43 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-28 16:36 bug#44284: 27.1; with some Unicode font, scrolling upward with the mouse wheel actually scrolls downward when the cursor needs repositioning Vincent Lefevre
2020-10-28 16:44 ` Vincent Lefevre
2020-10-28 16:53 ` Eli Zaretskii
2020-10-30 10:52 ` Vincent Lefevre
2020-10-30 11:31 ` Eli Zaretskii
2020-10-30 13:33 ` Vincent Lefevre
2020-10-30 13:37 ` Eli Zaretskii
2020-10-30 16:31 ` Vincent Lefevre
2020-10-30 20:34 ` Vincent Lefevre
2020-10-30 20:57 ` Vincent Lefevre
2020-10-30 21:09 ` Eli Zaretskii
2020-10-30 23:00 ` Vincent Lefevre
2020-10-31 0:46 ` Vincent Lefevre
2020-10-31 1:13 ` Vincent Lefevre
2020-10-31 7:38 ` Eli Zaretskii
2020-10-31 22:43 ` Vincent Lefevre [this message]
2020-11-01 0:24 ` Vincent Lefevre
2020-11-01 0:28 ` Vincent Lefevre
2020-11-01 16:15 ` Eli Zaretskii
2020-11-01 16:15 ` Eli Zaretskii
2020-11-01 17:32 ` Vincent Lefevre
2020-11-01 17:43 ` Eli Zaretskii
2020-11-01 18:34 ` Vincent Lefevre
2020-11-01 18:47 ` Eli Zaretskii
2020-11-01 21:13 ` Vincent Lefevre
2020-11-07 8:29 ` Eli Zaretskii
2020-11-07 10:35 ` Vincent Lefevre
2020-11-07 13:22 ` Eli Zaretskii
2020-11-01 15:55 ` Eli Zaretskii
2020-11-01 17:26 ` Vincent Lefevre
2020-10-30 20:58 ` Eli Zaretskii
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