[LyX/master] Add "full" drawing strategy

[Richard Kimberly Heck]

On 6/11/24 09:36, Jean-Marc Lasgouttes wrote:
> Le 11/06/2024 à 15:17, Jean-Marc Lasgouttes a écrit :
>> commit f48cf461010daa8aceb220a6762cb50c1192db0d
>> Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
>> Date:   Sat Jul 15 11:46:25 2023 +0200
>>
>>      Add "full" drawing strategy
>
> Riki, would it be OK to backport this change to 2.4.1? I would like to 
> know whether it helps people with weird display issues.
>
> The point is to offer a mode where the screen is redrawn fully every 
> time (only the drawing, not the metrics computation). The performance 
> seems quite reasonable to me, actually.

I assume it is otherwise safe?

> Having a proper UI for it would be great, but I am procrastinating on 
> that.

What's our policy on preference updates? (I can't remember.) Do we care 
if a preference file saved with 2.4.1 cannot be used with 2.4.0?

Riki