yes, that's the same issue.
It seems there is some offset missing, when rendering child's content in offscreen window.
Also, maybe this is 'simply' a gtk3 bug.
Note: gtk3.3 is still the *unstable* branch.
I'd recommand
- give a shot at gtk3.2
- see if the bug is still present
- submit a bug to gtk3 (with a link to here) if it still is.
yes, that's the same issue.
It seems there is some offset missing, when rendering child's content in offscreen window.
Also, maybe this is 'simply' a gtk3 bug.
Note: gtk3.3 is still the *unstable* branch.
I'd recommand
- give a shot at gtk3.2
- see if the bug is still present
- submit a bug to gtk3 (with a link to here) if it still is.