Gtk-WARNING for GtkPaned about pympress

[Cimbali]

Yeah the first message has been around for ages. It comes do from the way we build the UI and try to restore the pane handle positions. It originates in Builder.replace_layout() where we recursively insert children based on the config string, then move the panel handles.

In order to set the panel handles, the Gtk.Paned need sizes, thus all the queue_resize/show_now/check_resize calls. If you remove the two last for loops from this function, the warning disappears (and Pympress won't remember where you last left your pane handle when closing the last time).

I think ideally the resizing loop shouldn't exist, and we should figure out the correct event (something like map, map-event or realize) that happens after size negotiation but before drawing the widget, and insert there the pane resizing (i.e. the last loop of replace_layout).

This would not just remove the warning if done properly, but also enable something that doesn't work right now: remembering and restoring the size of a Gtk.Paned child of another Gtk.Paned with both the same orientation. That is, this works [ |☰] but this doesn't: [ |[ ⏐ ]]

[Cimbali]

Turns out size-allocate is a good signal to do this.

[FriedrichFroebel]

Thanks for the quick fix. The warnings seem to have gone.