[LyX/master] Add "full" drawing strategy

[Jean-Marc Lasgouttes]

Le 11/06/2024 à 17:56, José Matos a écrit :
> Does it make sense to have another option "auto" that automatically
> chooses the best strategy?
> 
> That way we could assume that the previous default was auto and be done
> with it.
> 
> I am aware that I am leaving many details on the air.
> 
> My motivation for this reasoning, other than to take care of the
> conversion from previous versions, is also to assume that if I change
> from X11 to Wayland (and vice-versa) we get the best choice available.
> 
> I am sure that you considered something like this. :-)

Very good point ;)

I could have an "auto" setting, but that would mean that we let users 
shoot themselves in the foot if they select explicitly "partial" on 
Wayland or macOS.

Currently, the default is "partial" and then later if "partial" is not 
supported, then it is set to "backingstore" instead.

My point is that, if we have an auto setting, then we assume that the 
other ones will be accepted as-is. I can do that if you think that it 
makes more sense.

This is an issue if I add a GUI: shall we propose the options that will 
lead to incorrect drawing?

JMarc