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bug#29198: Cursor fringe arrow indicator not updating.
From: |
Keith David Bershatsky |
Subject: |
bug#29198: Cursor fringe arrow indicator not updating. |
Date: |
Thu, 09 Nov 2017 20:19:08 -0800 |
Thank you, Eli.
I have tested the patch with a current version of Emacs 26 branch and am able
to verify that this feature is working well, and the prior issue with the lag
has been rectified.
Great job!
Keith
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DATE: [11-09-2017 08:29:14] <09 Nov 2017 18:29:14 +0200>
FROM: Eli Zaretskii <eliz@gnu.org>
>
> * * *
>
> Thanks. Meanwhile I also arrived at the conclusion that this is a
> bug, because the same recipe does work on TTY frames.
>
> Of course, reverting the above changes is not the solution, because as
> you yourself noticed, it caused redisplay to be significantly
> snappier. The problem with those changes is that they opened the path
> for the code to use redisplay optimizations when overlay-arrows are
> displayed, which (the optimizations) are incompatible with
> overlay-arrow display. So the correct solution would be to disable
> those optimizations when overlay-arrows are displayed in the buffer.
> Which I just did.
>
> Thanks.