From: Eli Zaretskii <eliz@gnu.org>
To: "Gerd Möllmann" <gerd.moellmann@gmail.com>
Cc: 67794@debbugs.gnu.org, alan@idiocy.org, manuel@ledu-giraud.fr
Subject: bug#67794: 30.0.50; mouse-face is not respected on SVG images
Date: Wed, 13 Dec 2023 20:11:56 +0200 [thread overview]
Message-ID: <837clirmz7.fsf@gnu.org> (raw)
In-Reply-To: <m2edfq7zpi.fsf@Pro.fritz.box> (message from Gerd Möllmann on Wed, 13 Dec 2023 18:57:13 +0100)
> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: Manuel Giraud <manuel@ledu-giraud.fr>, alan@idiocy.org,
> 67794@debbugs.gnu.org
> Date: Wed, 13 Dec 2023 18:57:13 +0100
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > Btw, AFAIU the person who at the time decided how this will work is
> > here: it's Gerd (CC'ed). Maybe he can share his memories about why he
> > ended up with this design.
>
> IIRC, this way of mouse-highlighting stems from Emacs 19, at least in
> principle. At that time, X event handling was done from a SIGIO signal
> handler. Being called from a signal handler made it impossible to use
> anything from the event handling code which wasn't reentrant. And there
> was not much reentrant code in Emacs, in particular not Lisp, but also
> most other stuff.
That's what I thought.
Still, given that the response to mouse movement should be very fast,
and the glyphs are already there, just with the wrong colors, I think
a design that just reuses the glyphs for redrawing a portion of the
screen sounds kinda...natural.
next prev parent reply other threads:[~2023-12-13 18:11 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-12 13:12 bug#67794: 30.0.50; mouse-face is not respected on SVG images Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-12 13:31 ` Eli Zaretskii
2023-12-12 14:07 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-12 14:43 ` Alan Third
2023-12-12 16:35 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-12 17:28 ` Eli Zaretskii
2023-12-13 8:18 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-13 12:19 ` Eli Zaretskii
2023-12-13 14:13 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-13 15:08 ` Eli Zaretskii
2023-12-13 16:04 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-13 16:23 ` Eli Zaretskii
2023-12-13 16:50 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-13 17:29 ` Eli Zaretskii
2023-12-13 17:57 ` Gerd Möllmann
2023-12-13 18:11 ` Eli Zaretskii [this message]
2023-12-13 18:24 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-13 18:46 ` Eli Zaretskii
2023-12-14 9:07 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-14 9:23 ` Eli Zaretskii
2023-12-14 9:48 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-14 10:05 ` Eli Zaretskii
2023-12-18 11:02 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-18 11:42 ` Alan Third
2023-12-18 18:36 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-18 19:48 ` Alan Third
2023-12-19 12:45 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-19 13:03 ` Eli Zaretskii
2023-12-19 13:23 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-19 13:40 ` Eli Zaretskii
2023-12-19 13:48 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-19 14:25 ` Eli Zaretskii
2023-12-19 14:39 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-19 15:34 ` Eli Zaretskii
2023-12-20 8:47 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-20 13:19 ` Eli Zaretskii
2023-12-20 13:54 ` Alan Third
2023-12-20 13:54 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-20 17:53 ` Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-12-23 10:22 ` Eli Zaretskii
2023-12-12 14:47 ` Eli Zaretskii
2023-12-12 15:20 ` Alan Third
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