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scroll-actor: Implement pick()

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We need to clip the children during picking as well as we do when
painting, to avoid reactive children outside of the visible area
receiving events.

This also allows us to refactor some common code into proper functions.
This commit is contained in:
Emmanuele Bassi 2012-05-14 10:33:13 +01:00
parent ee72d9b4af
commit 39a4929d75
1 changed files with 37 additions and 11 deletions
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48
clutter/clutter-scroll-actor.c
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@ -113,8 +113,8 @@ clutter_scroll_actor_apply_transform (ClutterActor *actor,
cogl_matrix_translate (transform, x_factor, y_factor, 0.0f);
}
static void
clutter_scroll_actor_paint (ClutterActor *actor)
static inline void
clutter_scroll_actor_push_clip (ClutterActor *actor)
{
ClutterScrollActorPrivate *priv = CLUTTER_SCROLL_ACTOR (actor)->priv;
ClutterActorBox allocation;
@ -139,12 +139,44 @@ clutter_scroll_actor_paint (ClutterActor *actor)
y,
x + width,
y + height);
}
static void
clutter_scroll_actor_paint (ClutterActor *actor)
{
clutter_scroll_actor_push_clip (actor);
CLUTTER_ACTOR_CLASS (clutter_scroll_actor_parent_class)->paint (actor);
cogl_clip_pop ();
}
static void
clutter_scroll_actor_pick (ClutterActor *actor,
const ClutterColor *pick_color)
{
clutter_scroll_actor_push_clip (actor);
CLUTTER_ACTOR_CLASS (clutter_scroll_actor_parent_class)->pick (actor, pick_color);
cogl_clip_pop ();
}
static void
clutter_scroll_actor_set_scroll_to_internal (ClutterScrollActor *self,
const ClutterPoint *point)
{
ClutterScrollActorPrivate *priv = self->priv;
ClutterActor *actor = CLUTTER_ACTOR (self);
if (point == NULL)
clutter_point_init (&priv->scroll_to, 0.f, 0.f);
else
priv->scroll_to = *point;
clutter_actor_queue_redraw (actor);
}
static void
clutter_scroll_actor_set_property (GObject *gobject,
guint prop_id,
@ -196,6 +228,7 @@ clutter_scroll_actor_class_init (ClutterScrollActorClass *klass)
actor_class->apply_transform = clutter_scroll_actor_apply_transform;
actor_class->paint = clutter_scroll_actor_paint;
actor_class->pick = clutter_scroll_actor_pick;
/**
* ClutterScrollActor:scroll-mode:
@ -245,12 +278,7 @@ clutter_scroll_actor_set_final_state (ClutterAnimatable *animatable,
ClutterScrollActor *self = CLUTTER_SCROLL_ACTOR (animatable);
const ClutterPoint *point = g_value_get_boxed (value);
if (point == NULL)
clutter_point_init (&self->priv->scroll_to, 0.f, 0.f);
else
self->priv->scroll_to = *point;
clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
clutter_scroll_actor_set_scroll_to_internal (self, point);
}
else
parent_animatable_iface->set_final_state (animatable, property_name, value);
@ -404,9 +432,7 @@ clutter_scroll_actor_scroll_to_point (ClutterScrollActor *actor,
priv->transition = NULL;
}
priv->scroll_to = *point;
clutter_actor_queue_redraw (CLUTTER_ACTOR (actor));
clutter_scroll_actor_set_scroll_to_internal (actor, point);
return;
}