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bug#16856: [PATCH] Prevent cursor from over-drawing the fringe


From: Anders Lindgren
Subject: bug#16856: [PATCH] Prevent cursor from over-drawing the fringe
Date: Sat, 21 May 2016 21:07:53 +0200

Closed.

Fixed by Alan Third, see the following for details:

http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=e5015c5d9632a0bf685c093249ae4a7d3e825b13

    -- Anders

On Sat, May 21, 2016 at 9:35 AM, Alan Third <address@hidden> wrote:
On Fri, May 20, 2016 at 09:33:52PM +0200, Anders Lindgren wrote:
> Hi!
>
> I gave this patch a try.
>
> It works well, the ns port now behaves like the win32 and gtk+ parts of
> Emacs.
>
> Do you want me to push it to master?

If you could, thanks.

> Ps. When the text area doesn't partially overlap a column, the cursor can
> be drawn in the fringe. It's a bit unfortunate that when it do overlap,
> only the part of the cursor in the text area is drawn. A worst case
> scenario is that only a single pixel of the cursor is visible. An ideal
> solution would be to draw the cursor partially in the text area and
> partially in the fringe, but without leaving garbage behind when moved.
> However, this is nothing that we can solve here and now as it would require
> change to all emacs ports and possibly the core system.

Yeah, I was thinking about this but couldn't really see much of a way
around it. I checked the gtk+ and windows ports operated this way just
to be sure I wasn't introducing another bug as it does seem wrong. :)
--
Alan Third


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