From: "angelo.graziosi@libero.it" <angelo.graziosi@libero.it>
To: 23510@debbugs.gnu.org
Subject: bug#23510: Strange redisplay in global highlighted mode moving the scroll bar
Date: Tue, 10 May 2016 21:31:26 +0200 (CEST) [thread overview]
Message-ID: <1959517970.14624161462908686797.JavaMail.httpd@webmail-60.iol.local> (raw)
Maybe this is not a bug but I want to flag for completeness..
The following should be reproducible with the following simple init.el:
$ cat init.el
;;
(global-hl-line-mode 1)
Now, in the scratch buffer, copy and paste many times its text (;; This
buffer...) so that the scratch buffer has many lines, not all contained in the
Emacs window/frame. Move the cursor on a line, more or less at the center of
the window. The line is highlighted (in green, by default). Now move slowly
up/down the scroll bar, then the highlighted line seems to flicker as if it
were redrawn at (almost) each pixel movement of the scroll bar.
Is this to be expected? Other software with same feature do not show this
"flickering" and the highlight moves synchronously with the text.
The effect is visible not only with vertical scroll bar but also with the
horizontal.
I see this with my master builds on Windows, GNU/linux and OSX.
Angelo
next reply other threads:[~2016-05-10 19:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-10 19:31 angelo.graziosi [this message]
2016-05-11 8:13 ` bug#23510: Strange redisplay in global highlighted mode moving the scroll bar Eli Zaretskii
2016-05-11 9:25 ` Stephen Berman
2016-05-11 9:44 ` Eli Zaretskii
2016-05-12 20:41 ` Stephen Berman
2016-05-12 20:41 ` Stephen Berman
2016-05-13 17:20 ` Stephen Berman
2016-05-13 17:52 ` Stephen Berman
2016-05-14 7:42 ` Angelo Graziosi
2016-05-16 21:33 ` Stephen Berman
2016-05-16 22:28 ` Angelo Graziosi
2016-05-25 22:13 ` Angelo Graziosi
2016-05-26 2:44 ` Eli Zaretskii
2016-05-26 9:34 ` Stephen Berman
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