Clist/CTree source incompatible changes

[Lars Hamann <lars gtk org>]

Hi!

I've just committed a patch to gtk+, which removes the scrollbars
from GtkCList/CTree. So all gtk+ code, that uses a CList or CTree
breaks. I.e. it will compile, but the scrollbars are gone. To make a
CList scrollable you have to add it to a GtkScrolledWindow or just
create the scrollbars on your own and set the adjustments in the clist.

Please change code like:

clist = gtk_clist_new (1);
gtk_container_add (GTK_CONTAINER (container), clist);
gtk_clist_set_policy (GTK_CLIST (clist), GTK_POLICY_ALWAYS,
                                 GTK_POLICY_AUTOMATIC);

to:

scrolled_win = gtk_scrolled_window_new (NULL, NULL);
clist = gtk_clist_new (1);
gtk_container_add (GTK_CONTAINER (container), scrolled_win);
gtk_container_add (GTK_CONTAINER (scrolled_win), clist);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
                                GTK_POLICY_AUTOMATIC,
                                GTK_POLICY_ALWAYS,);

gtk_clist_set_policy is now deprecated and completely non-functional.

GtkScrollableWindow can handle any widget, which provides "hadjustment",
"vadjustment" args via the gtk_object_arg_set mechanism.
If a widget does not provide these args, GtkScrolledWindow automatically
creates a viewport for the widget.

Sorry for the inconvenience, but we gain a lot more flexibility through
these source incompatibilities.

bye,
  Lars