It feels slightly wrong to have GtkOrientable operate on widgets, but at
least what happens when an orientable widget changes orientation should
be part of GtkWidget.
This will allow to add more state changes without accessing widget state
from the outside of gtkwidget.c.
Add a convenience api to skip children
that should not be included in the layout,
and call gtk_native_check_resize on all
native children outside of the vfunc.
These need to be skipped in measuring,
and we need to call gtk_native_check_resize
on them during allocation.
This was showing up as the new-style
context menu in widget-factory forcing
its relative-to box to grow when its
shown.
Just like GtkContainer provides a default implementation of
GtkWidgetClass.get_request_mode(), we can do the same inside
GtkLayoutManager.
A default implementation preserves the behavior of existing widgets that
moved, or will move, to a GtkLayoutManager.
The default GtkWidgetClass.get_request_mode() is implemented by
GtkContainer; now that GtkBox uses a GtkBoxLayout, we need to implement
it inside the layout manager to preserve the same behavior as the old
GtkBox.
Fixes#1821
- Rename GtkLegacyLayout to GtkCustomLayout
- Use for() to iterate over children in GtkBinLayout
- Whitespace fixes for code imported from GtkBox
- Store the GtkLayoutChild instances inside LayoutManager
- Simplify the GtkLayoutManager API by dropping unnecessary arguments
- Fix the ownership model of GtkLayoutManager
