2006-08-31  Michael Natterer  <mitch@gimp.org>

	* app/widgets/gimpcontainerview.c
	(gimp_container_view_real_set_container)
	(gimp_container_view_real_set_context)
	(gimp_container_view_item_selected)
	(gimp_container_view_thaw): support setting a context even if
	the viewed container's children_type is *not* a property of
	GimpContext. This removes a major restriction of container
	views and allows to get rid of some hacks:

	* app/widgets/gimpitemtreeview.[ch]: removed GimpContext member
	and implement GimpContainerView::set_context() instead of
	GimpDocked::set_context().

	* app/widgets/gimpchanneltreeview.c
	* app/widgets/gimpcontainergridview.c
	* app/widgets/gimpcontainertreeview.c
	* app/widgets/gimpdrawabletreeview.c
	* app/widgets/gimplayertreeview.c: use GimpContainerView's context
	instead of GimpItemTreeView's and implement GimpContainerView's
	set_context() instead of GimpDocked's.

	* app/actions/actions.c (action_data_get_gimp)
	(action_data_get_context): don't special-case GimpItemTreeView any
	more, it's just like a normal GimpContainerView now.

	* app/widgets/gimpcontrollerlist.c
	(gimp_controller_list_constructor): set a context on the
	GimpContainerView so its renderers have a context to use.