From: Tassilo Horn <tsdh@gnu.org>
To: Po Lu <luangruo@yahoo.com>
Cc: Lars Ingebrigtsen <larsi@gnus.org>, emacs-devel@gnu.org
Subject: Re: master 6e5d79c048: Display show-paren-context-when-offscreen in child frame
Date: Tue, 08 Feb 2022 13:00:16 +0100 [thread overview]
Message-ID: <87leyly2zm.fsf@gnu.org> (raw)
In-Reply-To: <87ee4edvog.fsf@yahoo.com>
Po Lu <luangruo@yahoo.com> writes:
>> I'm actually using pgtk on a 7 years old laptop and it doesn't feel
>> slow. The reason why I started with the child-frame approach is that
>> the child-frame can be positioned precisely at the top-left of the
>> current window. Since emacs now supports pixel-wise scrolling, it
>> can happen that only the lower half of the line at `window-start' is
>> visible which would be bad if an overlay was placed there. Is there
>> a way to test if some position is completely visible?
>
> Try `pos-visible-in-window-p'.
Ah, so if (pos-visible-in-window-p (window-start) nil t) returns a
6-element list, then (window-start) is not completely visible.
My idea was to display the context overlay in the second line in such
cases but I don't think that's worthwhile to bother with. It seems that
so many basic commands (next-line, previous-line, move-end-of-line) get
me out of this "half line visible state" that it can be neglected.
Bye,
Tassilo
next prev parent reply other threads:[~2022-02-08 12:00 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <164414267475.11015.16458968298391656164@vcs2.savannah.gnu.org>
[not found] ` <20220206101755.0EC03C002F9@vcs2.savannah.gnu.org>
2022-02-06 21:35 ` master 6e5d79c048: Display show-paren-context-when-offscreen in child frame Lars Ingebrigtsen
2022-02-07 1:28 ` Po Lu
2022-02-07 5:52 ` Tassilo Horn
2022-02-07 13:31 ` Arash Esbati
2022-02-07 14:08 ` Tassilo Horn
2022-02-07 15:45 ` Tassilo Horn
2022-02-07 18:13 ` Arash Esbati
2022-02-07 19:30 ` Tassilo Horn
2022-02-08 8:25 ` Arash Esbati
2022-02-08 8:55 ` Tassilo Horn
2022-02-09 12:45 ` Tassilo Horn
2022-02-09 13:26 ` Po Lu
2022-02-09 13:28 ` Tassilo Horn
2022-02-09 13:42 ` Po Lu
2022-02-09 13:45 ` Tassilo Horn
2022-02-09 14:16 ` Tassilo Horn
2022-02-10 1:58 ` Po Lu
2022-02-14 12:41 ` Po Lu
2022-02-14 13:41 ` Tassilo Horn
2022-02-09 13:50 ` Arash Esbati
2022-02-09 18:22 ` martin rudalics
2022-02-08 0:54 ` Po Lu
2022-02-08 12:00 ` Tassilo Horn [this message]
2022-02-08 1:43 ` Po Lu
2022-02-08 6:59 ` Tassilo Horn
2022-02-08 9:01 ` martin rudalics
2022-02-08 9:21 ` Po Lu
2022-02-08 10:06 ` Tassilo Horn
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