GNU bug report logs - #42406
Mouse-wheel scrolling can be flickering

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From: martin rudalics <rudalics <at> gmx.at>
To: Konrad Podczeck <konrad.podczeck <at> univie.ac.at>
Cc: Eli Zaretskii <eliz <at> gnu.org>, Alan Third <alan <at> idiocy.org>, 42406 <at> debbugs.gnu.org
Subject: bug#42406: Mouse-wheel scrolling can be flickering
Date: Thu, 17 Dec 2020 18:05:54 +0100

> Let me reply that, with the three critical instances of
> wset_updated_mode_line just out-commented, when I scroll in a frame
> _with_ input focus, then the mode line is always correctly updated.

Because scrolling can change lots of other things in the selected window
so this is probably expected.

> If
> I scroll in a frame without input focus, then at least the percentage
> is always updated, and the line-number is update as soon as the
> (hollow) cursor reaches the top or the bottom of the range of text
> shown in the frame. In any case, with global-line-numbers-mode on, is
> there a situation where, in practice, one needs to look at the line
> numbers as shown in the mode line?

I hardly ever look so I can't tell.  But doing the substitutions I
suggested earlier can hardly harm IMO.  And if they harm, then we'd yet
have another issue to investigate.

martin

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