Re: [clutter] Implementing a new actor via cluttermm

[Michael Boccara]

Murray Cumming wrote: On Wed, 2008-07-09 at 17:37 +0300, Michael Boccara wrote: I am new to the GLib and GObjects world, so my question may sound dumb. Is it possible to implement new subclasses of Clutter::Actor without having to subclass the ClutterActor GObject ? In other words, can we create our own actors using cluttermm only ? It should be. You might be the first person to try it though. I would be surprised if so. As soon as you want a clutter actor with a more complex geometry than just a rectangle, the only way is to subclass ClutterActor and override the 'paint' method. In clutter, it would mean defining and binding the clutter_custom_actor_paint() function, with all the GObject subclassing nightmare it involves. Or am I missing something ? Actually just recently I got pretty optimistic about the possibility of  relying only on the C++ inheritance in the cluttermm level only, since I noticed an interesting change in the clutter_actor_paint() definition: void clutter_actor_paint (ClutterActor *self) {     // was like this in clutter-0.6.0     // if (G_LIKELY (klass->paint))     //   klass->paint (self);         // and now in clutter-0.8.0 it is:     g_signal_emit (self, actor_signals[PAINT], 0); } Up until clutter-0.6.0, the paint virtual method was hard-assigned to clutter_custom_actor_paint, which was making it impossible to get to use Clutter::CustomActor::paint() from the clutter_main() loop. But  now that clutter-0.8.0 is emitting a Glib signal I guess it makes it possible for cluttermm to bind the PAINT signal to the Clutter::CusomActor::paint() virtual method. Do I get it right ?   However, I recommend waiting for us to update cluttermm to 0.8 first though. We didn't do that yet because it currently depends on other clutter-* libraries that were no available in 0.7/0.8 versions (which I consider to be a rather strange release schedule). I guess we'll have something this week. -- Michael Boccara Graphtech Herzliya, Israel -- To unsubscribe send a mail to [EMAIL PROTECTED]