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

From: Eli Zaretskii <eliz <at> gnu.org>
To: Po Lu <luangruo <at> yahoo.com>
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 12:37:57 +0300

> From: Po Lu <luangruo <at> yahoo.com>
> Cc: larsi <at> gnus.org,  50660 <at> debbugs.gnu.org
> Date: Tue, 21 Sep 2021 17:20:31 +0800
> 
> 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.

Only the characters at the beginning and end of the box jump, so they
are the only ones that need an additional adjustment.  Right?

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