From: Po Lu <luangruo@yahoo.com>
To: JD Smith <jdtsmith@gmail.com>
Cc: Eval EXEC <execvy@gmail.com>, emacs-devel <emacs-devel@gnu.org>
Subject: Re: [Emacs Master d277123f4bf] pixel-scroll-precision-scroll-up-page feels pause, but pixel-scroll-precision-scroll-down-page is smooth
Date: Wed, 04 Sep 2024 10:32:21 +0800 [thread overview]
Message-ID: <87bk14tah6.fsf@yahoo.com> (raw)
In-Reply-To: <D003BEB2-A5F9-4CB6-8F8D-FBC5494B56E8@gmail.com> (JD Smith's message of "Tue, 3 Sep 2024 21:56:26 -0400")
JD Smith <jdtsmith@gmail.com> writes:
> Interesting, I actually hadn't seen those new wheel-up/down
> PIXEL-DELTA values. They come straight from the system?
Yes. They're provided by the X Input Extension on X, for example.
> pixel-scroll-precision has its own elisp-based "driver". So all the
> momentum/interpolation code in pixel-scroll is effectively to allow
> low resolution mice to simulate high scroll event rate trackpads?
The momentum code is not, but the interpolation is. Momentum enters
into effect when the system notifies Emacs that precision scrolling has
ceased and `pixel-scroll-precision-use-momentum' is enabled.
prev parent reply other threads:[~2024-09-04 2:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-03 9:56 [Emacs Master d277123f4bf] pixel-scroll-precision-scroll-up-page feels pause, but pixel-scroll-precision-scroll-down-page is smooth Eval EXEC
2024-09-03 18:14 ` JD Smith
2024-09-04 1:13 ` Po Lu
2024-09-04 1:56 ` JD Smith
2024-09-04 2:32 ` Po Lu [this message]
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