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2008-06-05 Emmanuele Bassi <ebassi@openedhand.com>

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Bug #840 - Implement prepare-paint and finish-paint signals.

	* clutter/clutter-actor.c:
	(clutter_actor_class_init): Add the ::paint, ::realize and
	::unrealize signals to ClutterActor. It is possible to
	override the paint, realization and unrealization of an
	actor without subclassing it. The ::paint signal handlers
	have the same limitations of a ClutterActor::paint implementation
	inside a subclass.

	(clutter_actor_realize),
	(clutter_actor_unrealize),
	(clutter_actor_paint): Emit the signals instead of calling
	the functions from the class vtable.
This commit is contained in:
Emmanuele Bassi 2008-06-05 14:32:18 +00:00
parent d63d928718
commit a06a79737b
2 changed files with 86 additions and 21 deletions
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17
ChangeLog
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@ -1,3 +1,20 @@
2008-06-05 Emmanuele Bassi <ebassi@openedhand.com>
Bug #840 - Implement prepare-paint and finish-paint signals.
* clutter/clutter-actor.c:
(clutter_actor_class_init): Add the ::paint, ::realize and
::unrealize signals to ClutterActor. It is possible to
override the paint, realization and unrealization of an
actor without subclassing it. The ::paint signal handlers
have the same limitations of a ClutterActor::paint implementation
inside a subclass.
(clutter_actor_realize),
(clutter_actor_unrealize),
(clutter_actor_paint): Emit the signals instead of calling
the functions from the class vtable.
2008-06-05 Emmanuele Bassi <ebassi@openedhand.com>
* ChangeLog-ivan: Remove the ChangeLog of the clutter-ivan

90
clutter/clutter-actor.c
View File

@ -245,6 +245,9 @@ enum
PARENT_SET,
FOCUS_IN,
FOCUS_OUT,
PAINT,
REALIZE,
UNREALIZE,
EVENT,
CAPTURED_EVENT,
@ -442,17 +445,14 @@ clutter_actor_hide_all (ClutterActor *self)
void
clutter_actor_realize (ClutterActor *self)
{
ClutterActorClass *klass;
g_return_if_fail (CLUTTER_IS_ACTOR (self));
if (CLUTTER_ACTOR_IS_REALIZED (self))
return;
CLUTTER_ACTOR_SET_FLAGS (self, CLUTTER_ACTOR_REALIZED);
klass = CLUTTER_ACTOR_GET_CLASS (self);
if (klass->realize)
(klass->realize) (self);
g_signal_emit (self, actor_signals[REALIZE], 0);
}
/**
@ -465,20 +465,14 @@ clutter_actor_realize (ClutterActor *self)
void
clutter_actor_unrealize (ClutterActor *self)
{
ClutterActorClass *klass;
ClutterActorPrivate *priv;
priv = self->priv;
g_return_if_fail (CLUTTER_IS_ACTOR (self));
if (!CLUTTER_ACTOR_IS_REALIZED (self))
return;
CLUTTER_ACTOR_UNSET_FLAGS (self, CLUTTER_ACTOR_REALIZED);
klass = CLUTTER_ACTOR_GET_CLASS (self);
if (klass->unrealize)
(klass->unrealize) (self);
g_signal_emit (self, actor_signals[UNREALIZE], 0);
}
static void
@ -1224,8 +1218,8 @@ void
clutter_actor_paint (ClutterActor *self)
{
ClutterActorPrivate *priv;
ClutterActorClass *klass;
ClutterMainContext *context;
g_return_if_fail (CLUTTER_IS_ACTOR (self));
priv = self->priv;
@ -1241,9 +1235,6 @@ clutter_actor_paint (ClutterActor *self)
}
}
context = clutter_context_get_default ();
klass = CLUTTER_ACTOR_GET_CLASS (self);
cogl_push_matrix();
_clutter_actor_apply_modelview_transform (self);
@ -1254,9 +1245,10 @@ clutter_actor_paint (ClutterActor *self)
CLUTTER_UNITS_TO_FIXED (priv->clip[2]),
CLUTTER_UNITS_TO_FIXED (priv->clip[3]));
if (G_UNLIKELY(context->pick_mode != CLUTTER_PICK_NONE))
context = clutter_context_get_default ();
if (G_UNLIKELY (context->pick_mode != CLUTTER_PICK_NONE))
{
ClutterColor col;
ClutterColor col = { 0, };
_clutter_id_to_color (clutter_actor_get_gid (self), &col);
@ -1270,8 +1262,7 @@ clutter_actor_paint (ClutterActor *self)
{
clutter_actor_shader_pre_paint (self, FALSE);
if (G_LIKELY (klass->paint))
klass->paint (self);
g_signal_emit (self, actor_signals[PAINT], 0);
clutter_actor_shader_post_paint (self);
}
@ -2436,6 +2427,63 @@ clutter_actor_class_init (ClutterActorClass *klass)
G_TYPE_BOOLEAN, 1,
CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
/**
* ClutterActor::paint:
* @actor: the #ClutterActor that received the signal
*
* The ::paint signal is emitted each time an actor is being painted.
*
* Subclasses of #ClutterActor should override the class signal handler
* and paint themselves in that function.
*
* It is possible to connect a handler to the ::paint signal in order
* to set up some custom aspect of a paint.
*
* Since: 0.8
*/
actor_signals[PAINT] =
g_signal_new (I_("paint"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ClutterActorClass, paint),
NULL, NULL,
clutter_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* ClutterActor::realize:
* @actor: the #ClutterActor that received the signal
*
* The ::realize signal is emitted each time an actor is being
* realized.
*
* Since: 0.8
*/
actor_signals[REALIZE] =
g_signal_new (I_("realize"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ClutterActorClass, realize),
NULL, NULL,
clutter_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* ClutterActor::unrealize:
* @actor: the #ClutterActor that received the signal
*
* The ::unrealize signal is emitted each time an actor is being
* unrealized.
*
* Since: 0.8
*/
actor_signals[UNREALIZE] =
g_signal_new (I_("unrealized"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ClutterActorClass, unrealize),
NULL, NULL,
clutter_marshal_VOID__VOID,
G_TYPE_NONE, 0);
klass->show = clutter_actor_real_show;
klass->show_all = clutter_actor_show;
klass->hide = clutter_actor_real_hide;