Prefer use of gtk_snapshot_set_snap()

[kleisauke]

See: https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/8494

Context: #46 (comment)

[jcupitt]

Well done for finding that gtk PR! I'll make a matching issue on nip4, since it'll need this too.

[jcupitt]

Here's nip4 (which has the same tile overlap issue) with Image / Patterns / Zone plate, fwiw:

Ouch!

[kleisauke]

I've fixed this in the Windows builds with commit libvips/build-win64-mxe@886f9a1, as we have full control over how GTK is built there.

[jcupitt]

Oh, that's great!

I've finally fixed the focus highlight in git master vipsdisp too, so it should be a lot prettier. It's all animated with CSS now!

93fba29

[jcupitt]

I put a version of this PR into nip4 behind a feature detect in meson. Thank you!

[kleisauke]

Great! I made the same change here.

This is ready for review now, there's no need to wait for the upstream PR.

[jcupitt]

Great!

Yes, I did the win build of nip4 without this, unfortunately :( Perhaps I'll update vipsdisp and get it in that way.

[jcupitt]

... I suppose we could add libraw to the win build too, that might be fun to experiment with. I've no idea how easy it is to build though.

[kleisauke]

Ah, I'll probably need to re-baseline those patches for the Windows builds now too. Adding libraw would hopefully be straightforward.

[jcupitt]

Hopefully the vipsdisp patch for snapshot snap can just go now. It looks like the gtk patches will need some work :( it's still in flux, looking at the PR.

[jcupitt]

I updated vipsdisp (again) from nip4 to get the new tilecache. It should be a bit faster and prettier.