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Re: Bug in incremental undrawing of mouseover highlighting
From: |
Kim F. Storm |
Subject: |
Re: Bug in incremental undrawing of mouseover highlighting |
Date: |
Tue, 02 Jan 2007 16:46:37 +0100 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.0.92 (gnu/linux) |
Richard Stallman <address@hidden> writes:
> Thanks for confirming that this is fixed.
Actually, it is NOT fixed.
Following the original recipe, it is easy to see the bug:
> I experience this bug fairly often in relatively mild form which is
> annoying but not unbearable. But I've just run across a severe case
> of presumably the same bug. It occurred while reading
> gnu-emacs-source from Gmane with Gnus. The article that shows the
> problem is at <http://permalink.gmane.org/gmane.emacs.sources/1977>,
> and here's how to reproduce it:
>
> 1. emacs -Q
> 2. M-: (setq gnus-select-method '(nntp "news.gmane.org")) RET
> 3. M-x gnus RET
> 4. S s gmane.emacs.sources
> 5. RET
> 6. C-s M-e [ 187: Alf-Ivar Holm RET C-f RET, i.e., go to this article
> and open it.
> 7. In the *Article* buffer, click on the MIME part header
> [2. Displaying ISO week in calendar, updated for emacs 22, 2nd try ---
> application/emacs-lisp; calendar-hack.el]. You'll see that the entire
> text of the attachment has mouse-face highlighting, and if you scroll
> over this part the incremental undrawing bug is apparent en masse.
> Now click the MIME part header again to close it, and either the
> entire header or the second line of will be double. Further clicking
> to open and close the MIME part increases the number of (parts of)
> headers displayed.
I see all of the reported problems!
I pressed SPC to see the MIME part header, then clicked on it, and
moved the mouse over the expanded attachment text to highlight it,
I then pressed SPC a couple of times to scroll the buffer, and pressed DEL
to get back to the MIME header - and clicked it .. and the last line
is shown three times.
And there are lots of mouse-highlight artifacts.
This is probably a problem with scrolling through multiline
mouse-hightlight which spans multiple pages.
Chong, could you take another look at it?
--
Kim F. Storm <address@hidden> http://www.cua.dk
- Re: Bug in incremental undrawing of mouseover highlighting,
Kim F. Storm <=