hi;
On Thu, 2009-09-10 at 12:30 +1000, Danielle Madeley wrote:
> I was wondering why a call to clutter_actor_show_all() on a ClutterGroup
> does not recurse down the tree calling show_all() on all of its
> children?
>
> >From clutter-group.c:
>
> static void
> clutter_group_real_show_all (ClutterActor *actor)
> {
> clutter_container_foreach (CLUTTER_CONTAINER (actor),
> CLUTTER_CALLBACK
> (clutter_actor_show),
> NULL);
> clutter_actor_show (actor);
> }
>
> I would have thought it would have been correct to call
> clutter_actor_show_all() on each of the children as well.
no, ClutterGroup overrides show_all() exactly to avoid the gtk+-like
behaviour that you (and I) are used to. :-)
it's been like that since Clutter 0.2 -- the rationale being that you
might be using a Group to hold invisible placeholders for later
animations, or source actors for clones, and calling show_all() would
display them. in theory, we might add a private "no-show-all" flag and a
clutter_actor_set_no_show_all() - but as far as I'm concerned, if you're
using ClutterGroup you're off to interesting behaviours anyway, and you
should probably be using your own container.
ciao,
Emmanuele.
--
Emmanuele Bassi, Senior Engineer | emmanuele.ba...@intel.com
Intel Open Source Technology Center | http://oss.intel.com
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