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From: Po Lu <luangruo@yahoo.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: rpluim@gmail.com,  emacs-devel@gnu.org
Subject: Re: master e37eb7f: Add support for pixel wheel deltas on NS
Date: Fri, 26 Nov 2021 20:05:00 +0800	[thread overview]
Message-ID: <8735njf7gz.fsf@yahoo.com> (raw)
In-Reply-To: <83pmqn2l3s.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 26 Nov 2021 13:48:55 +0200")

Eli Zaretskii <eliz@gnu.org> writes:

> Btw, I have a general question regarding this "pixel-resolution"
> scrolling support:

> With mwheel.el, Emacs users can configure the meaning of each scroll
> event in terms of text lines, via the mouse-wheel-scroll-amount
> variable.  But with this new mode, there's no such user control: the
> conversion of the scroll amount reported by the wheel event to pixels
> is either hard-coded in our code, or (on NS) determined by the OS.
> Does it strike someone as "un-Emacsy"?

It seems OK to me, but we could perhaps have customizations for that.

The problem is that I don't see how such a customization could be
implemented on platforms such as NS, or in the future, the PGTK port.

> Also, if we detect that the mouse wheel is capable of reporting
> fine-resolution scrolls, we use that unconditionally, and users have
> no say about that.  So if a user sets x-coalesce-scroll-events to nil
> manually, but doesn't enable this new mode, they suddenly get much
> faster scrolling because mwheel.el disregards the pixel-wise deltas.
> Right?

Yes, that's correct.

> So maybe we should make x-coalesce-scroll-events and internal
> variable, and say so in its doc string, because it should only be set
> by this mode and its ilk, which do pay attention to the pixel deltas?

I could imagine some user customizations making use of it, but I have no
objection to making it an internal variable.

Thanks.



  reply	other threads:[~2021-11-26 12:05 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20211125030922.2353.1129@vcs0.savannah.gnu.org>
     [not found] ` <20211125030924.7258E2094B@vcs0.savannah.gnu.org>
2021-11-25 10:26   ` master e37eb7f: Add support for pixel wheel deltas on NS Robert Pluim
2021-11-25 10:34     ` Po Lu
2021-11-25 10:47       ` Robert Pluim
2021-11-25 11:02       ` Eli Zaretskii
2021-11-26  0:39         ` Po Lu
2021-11-26  6:35           ` Eli Zaretskii
2021-11-26  7:00             ` Po Lu
2021-11-26  8:17               ` Eli Zaretskii
2021-11-26  9:37                 ` Po Lu
2021-11-26 11:32                   ` Eli Zaretskii
2021-11-26 11:44                     ` Po Lu
2021-11-26 16:55                       ` Eli Zaretskii
2021-11-27  0:02                         ` Po Lu
2021-11-27  6:09                           ` Eli Zaretskii
2021-11-27  6:41                             ` Po Lu
2021-11-27  7:05                               ` Eli Zaretskii
2021-11-27  7:14                                 ` Po Lu
2021-11-27 10:47                                   ` Eli Zaretskii
2021-11-27 10:54                                     ` Po Lu
2021-11-27 11:03                                       ` Eli Zaretskii
2021-11-27 11:05                                         ` Po Lu
2021-11-27 11:13                                           ` Po Lu
2021-11-27 11:32                                             ` Eli Zaretskii
2021-11-27 11:34                                               ` Po Lu
2021-11-27 11:40                                                 ` Eli Zaretskii
2021-11-27 11:44                                                   ` Po Lu
2021-11-27 12:02                                                     ` Eli Zaretskii
2021-11-27 12:11                                                       ` Po Lu
2021-11-27 12:36                                                         ` Eli Zaretskii
2021-11-27 12:48                                                           ` Po Lu
2021-11-26 11:48                     ` Eli Zaretskii
2021-11-26 12:05                       ` Po Lu [this message]
2021-11-26 12:23                         ` Eli Zaretskii
2021-11-26 12:37                           ` Po Lu
2021-11-26 19:39                             ` Alan Third
2021-11-26 19:45                               ` Eli Zaretskii
2021-11-26 19:54                                 ` Alan Third
2021-11-28  2:54                             ` Po Lu
2021-11-28  7:53                               ` Eli Zaretskii
2021-11-28  7:58                                 ` Po Lu
2021-11-28  8:28                                   ` Eli Zaretskii
2021-11-29  7:39                                     ` Po Lu
2021-11-29 12:50                                       ` Eli Zaretskii
2021-11-29 13:19                                         ` Po Lu
2021-11-25 11:00     ` Eli Zaretskii
2021-11-25 18:46       ` Stefan Monnier
2021-11-25 18:58         ` Eli Zaretskii

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