GNU bug report logs - #50660
28.0.50; Text artifacting when the cursor moves over text under mouse face that originally displayed a box

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Message #92 received at 50660 <at> debbugs.gnu.org (full text, mbox):

From: Po Lu <luangruo <at> yahoo.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: larsi <at> gnus.org, 50660 <at> debbugs.gnu.org
Subject: Re: bug#50660: 28.0.50; Text artifacting when the cursor moves over
 text under mouse face that originally displayed a box
Date: Tue, 21 Sep 2021 17:20:31 +0800

Eli Zaretskii <eliz <at> gnu.org> writes:

> Do you see any display problems with the glyph under the cursor if you
> just move the cursor inside the mouse-highlighted region?  If so, can
> you show the recipe for reproducing the problem?

Yes, starting from emacs -Q, create a buffer in fundamental-mode, and
evaluate:

  (insert (propertize "some sample text" 'face '(:box 10) 'mouse-face 'highlight))

Highlight the text that was inserted, and move the cursor around inside
the highlighted area.  The text will begin to jump all over the place.

Thanks.

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