From: Eli Zaretskii <eliz@gnu.org>
To: "Jan D." <jan.h.d@swipnet.se>
Cc: 1867@debbugs.gnu.org, lbsmtp@gmail.com
Subject: bug#1867: Resizing window causes text flickering when using antialiased font on X
Date: Wed, 05 Oct 2011 06:41:44 -0400 [thread overview]
Message-ID: <E1RBOv2-0007gI-TQ@fencepost.gnu.org> (raw)
In-Reply-To: <4E8C00C8.9010208@swipnet.se> (jan.h.d@swipnet.se)
> Date: Wed, 05 Oct 2011 09:01:28 +0200
> From: "Jan D." <jan.h.d@swipnet.se>
> Cc: Bo Lin <lbsmtp@gmail.com>, 1867@debbugs.gnu.org
>
> FWIW, I can't see any text flicker in the scenario above. However, the
> hollow cursor in the non-selected windows do flicker which indicates
> that there is some redrawing going on.
The way redisplay is written, _any_ change to dimensions of _any_
window sets a flag that will cause a thorough redisplay of all the
windows on all the visible frames. However, I'd expect that redisplay
of any window not affected by the resizing be limited to redrawing the
cursor.
So even when antialiased fonts are used, I wouldn't expect any
flickering, because Emacs should notice that the window didn't change
at all. Unless, that is, redrawing the cursor on X involves redrawing
parts of the window text. Does it?
next prev parent reply other threads:[~2011-10-05 10:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-12 10:10 bug#1867: Resizing window causes text flickering when using antialiased font on X Bo Lin
2011-10-05 1:13 ` Glenn Morris
2011-10-05 7:01 ` Jan D.
2011-10-05 10:41 ` Eli Zaretskii [this message]
2011-10-05 17:34 ` Jan Djärv
2011-10-05 20:29 ` Eli Zaretskii
2011-10-05 21:16 ` Jan Djärv
2011-10-06 14:17 ` Jason Rumney
2011-10-05 21:57 ` Chong Yidong
2011-10-06 5:33 ` Eli Zaretskii
2011-10-06 6:05 ` Jan D.
2011-10-06 15:06 ` Chong Yidong
2011-10-06 19:38 ` Bo Lin
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