Created attachment 139425 [details] [review]
Proposed patch for gtk_widget_get_allocation()

I've reopen this bug because there isn't yet a accesor function to _set_ allocation

There is already gtk_widget_size_allocate()

Reopening again because we still need a way to *set* widget->allocation
in a widget's size_allocate() implementation.

Chaining up is not a solution here because we might be overriding
a parent's implementation which we don't want.

Created attachment 140669 [details] [review]
Commit

I went ahead and committed to master.  If this is wrong, let me know and I can revise it.

as a side note, it would be good to constify that allocation parameter:

  void gtk_widget_set_allocation (GtkWidget           *widget,
                                  const GtkAllocation *allocation);

since the allocation passed is copied.

Thanks Emmanuele, committed!  Also, I forgot to add the new function to gtkwidget.h and gtk.symbols earlier, so that's now committed as well.