From: Po Lu <luangruo@yahoo.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Akira Kyle <ak@akirakyle.com>, emacs-devel@gnu.org
Subject: Re: SVG widget in GNU Emacs
Date: Thu, 28 Oct 2021 17:39:04 +0800 [thread overview]
Message-ID: <87sfwlmqtj.fsf@yahoo.com> (raw)
In-Reply-To: <83zgqtu13m.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 28 Oct 2021 09:15:09 +0300")
Eli Zaretskii <eliz@gnu.org> writes:
> Isn't that flickering a direct consequence of the fact that xwidgets
> disable an important optimization in scrolling_window?
I suspect the problem lies, rather, in Emacs painting over widgets.
Since 2.18 GTK+ has stopped giving widgets individual X windows by
default, so drawing the glyph string background in x_draw_glyph_string
causes flickering, because it is actually painting over the widget's
native X window.
This is because Emacs uses X drawing primitives (or a cairo xlib
surface, not a surface provided by GTK), that GTK doesn't know about.
next prev parent reply other threads:[~2021-10-28 9:39 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 2:00 SVG widget in GNU Emacs Anand Tamariya
2021-10-20 3:15 ` Po Lu
2021-10-20 12:09 ` Eli Zaretskii
2021-10-20 12:48 ` Po Lu
2021-10-20 13:08 ` Eli Zaretskii
2021-10-20 13:17 ` Po Lu
2021-10-20 14:13 ` Eli Zaretskii
2021-10-26 6:32 ` Akira Kyle
2021-10-26 12:32 ` GUI and redisplay work (was: SVG widget in GNU Emacs) Stefan Monnier
2021-10-26 12:51 ` Stefan Kangas
2021-10-26 13:23 ` Eli Zaretskii
2021-10-26 13:19 ` Eli Zaretskii
2021-10-27 16:07 ` Alexandre Garreau
2021-10-27 17:12 ` tomas
2021-10-27 19:00 ` Alexandre Garreau
2021-10-29 17:34 ` GUI and redisplay work Arthur Miller
2021-10-29 19:29 ` Alexandre Garreau
2021-10-29 20:05 ` Alexandre Garreau
2021-10-27 9:47 ` SVG widget in GNU Emacs Po Lu
2021-10-27 12:10 ` Eli Zaretskii
2021-10-27 12:25 ` Po Lu
2021-10-27 20:01 ` Akira Kyle
2021-10-28 1:21 ` Po Lu
2021-10-28 13:50 ` Fix flickering on X11 xwidgets (was: Re: SVG widget in GNU Emacs) Po Lu
2021-10-27 19:49 ` SVG widget in GNU Emacs Akira Kyle
2021-10-28 1:15 ` Po Lu
2021-10-28 6:15 ` Eli Zaretskii
2021-10-28 9:39 ` Po Lu [this message]
2021-10-20 22:35 ` Richard Stallman
2021-10-20 23:37 ` dalanicolai
2021-10-21 0:31 ` dalanicolai
2021-10-21 0:07 ` Po Lu
2021-10-20 8:15 ` Lars Ingebrigtsen
2021-10-20 9:13 ` Anand Tamariya
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