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vertex: Register progress function

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This allows animating properties storing a ClutterVertex.
This commit is contained in:
Emmanuele Bassi 2010-10-11 15:52:50 +01:00
parent 4931802fee
commit 7a54bdc65d
1 changed files with 28 additions and 4 deletions
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24
clutter/clutter-actor.c
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@ -9302,17 +9302,41 @@ clutter_vertex_equal (const ClutterVertex *vertex_a,
vertex_a->z == vertex_b->z;
}
static gboolean
clutter_vertex_progress (const GValue *a,
const GValue *b,
gdouble progress,
GValue *retval)
{
const ClutterVertex *av = g_value_get_boxed (a);
const ClutterVertex *bv = g_value_get_boxed (b);
ClutterVertex res = { 0, };
res.x = av->x + (bv->x - av->x) * progress;
res.y = av->y + (bv->y - av->y) * progress;
res.z = av->z + (bv->z - av->z) * progress;
g_value_set_boxed (retval, &res);
return TRUE;
}
GType
clutter_vertex_get_type (void)
{
static GType our_type = 0;
if (G_UNLIKELY (our_type == 0))
{
our_type =
g_boxed_type_register_static (I_("ClutterVertex"),
(GBoxedCopyFunc) clutter_vertex_copy,
(GBoxedFreeFunc) clutter_vertex_free);
clutter_interval_register_progress_func (our_type,
clutter_vertex_progress);
}
return our_type;
}