I’m looking for any way to scale up/down a GTK widget, ideally any kind of a container with all its children, so ultimately I would be able to zoom in/out whole widget
I tried some experiments with calling scale() on Gtk.Snapshot but then all the mouse coordinates are affected and it’s super hard to do anything about it
You should apply zoom when allocating the child widget, not when snapshotting. I.e. call Gtk.Widget.allocate on your child in your size_allocate vfunc, passing a transform that has the zoom applied.
