bug#51891: closed (29.0.50; [PATCH] Pixel delta support for wheel events on X)

[GNU bug Tracking System]

Your message dated Sat, 20 Nov 2021 18:28:54 +0800
with message-id <87mtlzp1cp.fsf@yahoo.com>
and subject line Re: bug#51891: 29.0.50; [PATCH] Pixel delta support for wheel 
events on X
has caused the debbugs.gnu.org bug report #51891,
regarding 29.0.50; [PATCH] Pixel delta support for wheel events on X
to be marked as done.

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51891: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=51891
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--- Begin Message --- Subject: 29.0.50; [PATCH] Pixel delta support for wheel events on X Date: Tue, 16 Nov 2021 20:38:03 +0800

I've implemented support for exposing the pixel delta of XInput 2 wheel
events to Lisp code.  With GC turned off, utilizing a modified
pixel-scroll.el with this support results in a quite pleasant
experience, but pixel-scroll still GCs too much to be useful.

Pixel based scrolling is a popular feature in modern X applications, and
does make life a lot easier in many cases.  The existing support is
inadequate as it cannot utilize the detailed delta information available
from modern touch-based scroll wheels, which this patch enables.

The XInput 2 support isn't the best from a code duplication POV, but the
behavior of the XInput 2 code often differs in subtle ways from that of
the Core Input code, and trying to combine the two together would result
in a more catastrophic mess than leaving them apart.

Obviously, here is the original XInput 2 support patch:

0001-Add-support-for-event-processing-via-XInput-2.patch
Description: Text Data

And here is the patch that exposes pixel deltas to Lisp:

0002-Expose-pixel-wise-wheel-events-to-Lisp.patch
Description: Text Data

WDYT?  Thanks.

--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#51891: 29.0.50; [PATCH] Pixel delta support for wheel events on X
>
>
>
>
> Date: 
>
> Sat, 20 Nov 2021 18:28:54 +0800
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> User-agent: 
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> Gnus/5.13 (Gnus v5.13) Emacs/28.0.60 (gnu/linux)
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>
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > Sure, why not?
> >
> > Thanks.
>
> Thanks, installed with the improvement to documentation you suggested in
> the other message.
>
>
> --- End Message ---