From: Bob Rogers <rogers-emacs@rgrjr.dyndns.org>
Subject: Bug in incremental undrawing of mouseover highlighting
Date: Sun, 19 Nov 2006 17:32:36 -0500 [thread overview]
Message-ID: <17760.56196.739515.442009@rgrjr.dyndns.org> (raw)
It seems that mouseover background highlighting is not undrawn if
replaced by the same unhighlighted text. This happens in the CVS
version as of late on 11-Nov. (I have seen this bug for some time now,
but only just thought of a (relatively) easy way to reproduce it.)
To reproduce:
1. "emacs -Q"
2. "C-x d RET". This gets a dired buffer; the exact directory
doesn't matter as long as it has at least a few files in it. (And, for
some reason, "." and ".." don't count.)
3. "C-x h M-w C-x b *scratch* RET C-y M-<". This gets a copy of the
dired buffer contents; sometimes they come with dired fontification, and
sometimes not. The same text should be displayed in the same character
positions in both dired and *scratch* buffers.
4. "C-x b RET" to get back to the dired buffer, and move the mouse
over a file name so that it is highlighted in green.
5. "C-x b RET" to return to *scratch*. Notice that the same
characters in the same position are still highlighted in green.
6. Move the mouse to a different file name. Usually the
highlighting goes away, but sometimes it doesn't (and it doesn't
correlate with fontification). If it does persist, type "C-x b RET" to
return once more to the dired buffer, and there will be two green file
names -- this can be repeated until every file name is green.
7. "C-l" (or anything else that causes redisplay from scratch) will
restore the display to normal; this is why I think it's a redisplay bug.
My apologies if this is a known problem; I find it hard to follow the
redisplay threads, so I may have missed the relevant description.
-- Bob Rogers
http://rgrjr.dyndns.org/
next reply other threads:[~2006-11-19 22:32 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-19 22:32 Bob Rogers [this message]
2006-11-19 22:50 ` Bug in incremental undrawing of mouseover highlighting David Kastrup
2006-11-19 23:45 ` Bob Rogers
2006-12-13 14:45 ` Stephen Berman
2006-12-13 16:04 ` Chong Yidong
2006-12-14 9:22 ` Stephen Berman
2006-12-16 12:31 ` Stephen Berman
2006-11-20 4:20 ` Eli Zaretskii
2006-11-20 19:22 ` Chong Yidong
2006-11-20 20:24 ` misleading install instruction in emacs/mac/INSTALL Gilbert Harman
2006-11-21 7:47 ` Richard Stallman
2006-11-22 8:23 ` YAMAMOTO Mitsuharu
2006-11-22 17:07 ` Gilbert Harman
2006-11-20 20:36 ` Bug in incremental undrawing of mouseover highlighting Eli Zaretskii
2006-11-22 4:06 ` Bob Rogers
2006-11-22 18:35 ` Eli Zaretskii
2006-11-22 15:07 ` Chong Yidong
2006-11-22 22:20 ` Eli Zaretskii
2006-11-22 23:57 ` Nick Roberts
2006-11-23 4:12 ` Eli Zaretskii
2006-11-23 4:50 ` Nick Roberts
2006-11-24 18:18 ` Eli Zaretskii
2006-11-25 1:53 ` YAMAMOTO Mitsuharu
2006-11-25 4:18 ` Chong Yidong
2006-11-25 7:28 ` YAMAMOTO Mitsuharu
2006-11-25 10:53 ` Eli Zaretskii
2006-11-25 16:18 ` Chong Yidong
2006-11-25 21:10 ` Eli Zaretskii
2006-11-26 19:05 ` Kim F. Storm
2006-12-26 2:26 ` Richard Stallman
2006-12-27 3:58 ` Bob Rogers
2006-12-27 21:16 ` Richard Stallman
2007-01-02 15:46 ` Kim F. Storm
2007-01-05 0:38 ` Michael Mauger
2007-01-19 15:33 ` Chong Yidong
2007-01-20 21:40 ` Stephen Berman
2007-01-21 14:36 ` Stephen Berman
2007-11-07 22:18 ` Stephen Berman
2007-01-23 16:28 ` John Paul Wallington
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