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actor: Make :transform and :child-transform animatable

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Now that we can interpolate between two matrices, we can mark the
matrix-based property as animatable.
This commit is contained in:
Emmanuele Bassi 2012-09-03 21:00:40 +01:00
parent 22ce4409b3
commit 48a2846ab9
1 changed files with 105 additions and 42 deletions
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147
clutter/clutter-actor.c
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@ -1054,6 +1054,11 @@ static inline void clutter_actor_set_margin_internal (ClutterActor *self,
gfloat margin,
GParamSpec *pspec);
static void clutter_actor_set_transform_internal (ClutterActor *self,
const ClutterMatrix *transform);
static void clutter_actor_set_child_transform_internal (ClutterActor *self,
const ClutterMatrix *transform);
/* Helper macro which translates by the anchor coord, applies the
given transformation and then translates back */
#define TRANSFORM_ABOUT_ANCHOR_COORD(a,m,c,_transform) G_STMT_START { \
@ -2983,15 +2988,12 @@ clutter_actor_real_apply_transform (ClutterActor *self,
priv->allocation.x1 + pivot_x + info->translation.x,
priv->allocation.y1 + pivot_y + info->translation.y);
if (_clutter_actor_get_transform_info_or_defaults (priv->parent)->child_transform_set)
{
const ClutterTransformInfo *parent_info;
parent_info = _clutter_actor_get_transform_info_or_defaults (priv->parent);
clutter_matrix_init_from_matrix (transform, &(parent_info->child_transform));
}
else
cogl_matrix_init_identity (transform);
/* if we have an overriding transformation, we use that, and get out */
if (info->transform_set)
@ -4160,8 +4162,10 @@ static const ClutterTransformInfo default_transform_info = {
CLUTTER_POINT_INIT_ZERO, /* pivot */
0.f, /* pivot-z */
{ 0.0, }, FALSE, /* transform */
{ 0.0, }, FALSE, /* child-transform */
CLUTTER_MATRIX_INIT_IDENTITY,
FALSE, /* transform */
CLUTTER_MATRIX_INIT_IDENTITY,
FALSE, /* child-transform */
};
/*< private >
@ -7153,6 +7157,8 @@ clutter_actor_class_init (ClutterActorClass *klass)
* setting this property with %NULL will set the
* #ClutterActor:transform-set property to %FALSE.
*
* The #ClutterActor:transform property is animatable.
*
* Since: 1.12
*/
obj_props[PROP_TRANSFORM] =
@ -7161,7 +7167,8 @@ clutter_actor_class_init (ClutterActorClass *klass)
P_("Transformation matrix"),
CLUTTER_TYPE_MATRIX,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS);
G_PARAM_STATIC_STRINGS |
CLUTTER_PARAM_ANIMATABLE);
/**
* ClutterActor:transform-set:
@ -7188,6 +7195,8 @@ clutter_actor_class_init (ClutterActorClass *klass)
* setting this property with %NULL will set the
* #ClutterActor:child-transform-set property to %FALSE.
*
* The #ClutterActor:child-transform property is animatable.
*
* Since: 1.12
*/
obj_props[PROP_CHILD_TRANSFORM] =
@ -7196,7 +7205,8 @@ clutter_actor_class_init (ClutterActorClass *klass)
P_("Children transformation matrix"),
CLUTTER_TYPE_MATRIX,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS);
G_PARAM_STATIC_STRINGS |
CLUTTER_PARAM_ANIMATABLE);
/**
* ClutterActor:child-transform-set:
@ -14628,6 +14638,14 @@ clutter_actor_set_animatable_property (ClutterActor *actor,
pspec);
break;
case PROP_TRANSFORM:
clutter_actor_set_transform_internal (actor, g_value_get_boxed (value));
break;
case PROP_CHILD_TRANSFORM:
clutter_actor_set_child_transform_internal (actor, g_value_get_boxed (value));
break;
default:
g_object_set_property (obj, pspec->name, value);
break;
@ -15739,6 +15757,33 @@ clutter_actor_get_transformation_matrix (ClutterActor *self,
clutter_actor_get_transform (self, matrix);
}
static void
clutter_actor_set_transform_internal (ClutterActor *self,
const ClutterMatrix *transform)
{
ClutterTransformInfo *info;
gboolean was_set;
GObject *obj;
obj = G_OBJECT (self);
info = _clutter_actor_get_transform_info (self);
was_set = info->transform_set;
info->transform = *transform;
info->transform_set = cogl_matrix_is_identity (&info->transform);
self->priv->transform_valid = FALSE;
clutter_actor_queue_redraw (self);
g_object_notify_by_pspec (obj, obj_props[PROP_TRANSFORM]);
if (was_set != info->transform_set)
g_object_notify_by_pspec (obj, obj_props[PROP_TRANSFORM_SET]);
}
/**
* clutter_actor_set_transform:
* @self: a #ClutterActor
@ -15749,35 +15794,29 @@ clutter_actor_get_transformation_matrix (ClutterActor *self,
* matrix, which will be applied relative to the origin of the
* actor's allocation and to the actor's pivot point.
*
* The #ClutterActor:transform property is animatable.
*
* Since: 1.12
*/
void
clutter_actor_set_transform (ClutterActor *self,
const ClutterMatrix *transform)
{
ClutterTransformInfo *info;
GObject *obj;
const ClutterTransformInfo *info;
ClutterMatrix new_transform;
g_return_if_fail (CLUTTER_IS_ACTOR (self));
obj = G_OBJECT (self);
info = _clutter_actor_get_transform_info (self);
info = _clutter_actor_get_transform_info_or_defaults (self);
if (transform != NULL)
{
info->transform = *transform;
info->transform_set = TRUE;
}
clutter_matrix_init_from_matrix (&new_transform, transform);
else
info->transform_set = FALSE;
clutter_matrix_init_identity (&new_transform);
self->priv->transform_valid = FALSE;
clutter_actor_queue_redraw (self);
g_object_notify_by_pspec (obj, obj_props[PROP_TRANSFORM]);
g_object_notify_by_pspec (obj, obj_props[PROP_TRANSFORM_SET]);
_clutter_actor_create_transition (self, obj_props[PROP_TRANSFORM],
&info->transform,
&new_transform);
}
/**
@ -18624,6 +18663,10 @@ _clutter_actor_create_transition (ClutterActor *actor,
*/
if (info->cur_state->easing_duration == 0)
{
CLUTTER_NOTE (ANIMATION, "Easing duration=0, immediate set for '%s::%s'",
_clutter_actor_get_debug_name (actor),
pspec->name);
/* remove a transition, if one exists */
clutter_actor_remove_transition (actor, pspec->name);
@ -19935,6 +19978,35 @@ done:
g_ptr_array_free (event_tree, TRUE);
}
static void
clutter_actor_set_child_transform_internal (ClutterActor *self,
const ClutterMatrix *transform)
{
ClutterTransformInfo *info = _clutter_actor_get_transform_info (self);
ClutterActorIter iter;
ClutterActor *child;
GObject *obj;
gboolean was_set = info->child_transform_set;
clutter_matrix_init_from_matrix (&info->child_transform, transform);
/* if it's the identity matrix, we need to toggle the boolean flag */
info->child_transform_set = !cogl_matrix_is_identity (transform);
/* we need to reset the transform_valid flag on each child */
clutter_actor_iter_init (&iter, self);
while (clutter_actor_iter_next (&iter, &child))
child->priv->transform_valid = FALSE;
clutter_actor_queue_redraw (self);
obj = G_OBJECT (self);
g_object_notify_by_pspec (obj, obj_props[PROP_CHILD_TRANSFORM]);
if (was_set != info->child_transform_set)
g_object_notify_by_pspec (obj, obj_props[PROP_CHILD_TRANSFORM_SET]);
}
/**
* clutter_actor_set_child_transform:
* @self: a #ClutterActor
@ -19946,38 +20018,29 @@ done:
*
* If @transform is %NULL, the child transform will be unset.
*
* The #ClutterActor:child-transform property is animatable.
*
* Since: 1.12
*/
void
clutter_actor_set_child_transform (ClutterActor *self,
const ClutterMatrix *transform)
{
ClutterTransformInfo *info;
ClutterActorIter iter;
ClutterActor *child;
GObject *obj;
const ClutterTransformInfo *info;
ClutterMatrix new_transform;
g_return_if_fail (CLUTTER_IS_ACTOR (self));
info = _clutter_actor_get_transform_info (self);
info = _clutter_actor_get_transform_info_or_defaults (self);
if (transform != NULL)
clutter_matrix_init_from_matrix (&info->child_transform, transform);
clutter_matrix_init_from_matrix (&new_transform, transform);
else
clutter_matrix_init_identity (&info->child_transform);
clutter_matrix_init_identity (&new_transform);
info->child_transform_set = transform != NULL;
/* we need to reset the transform_valid flag on each child */
clutter_actor_iter_init (&iter, self);
while (clutter_actor_iter_next (&iter, &child))
child->priv->transform_valid = FALSE;
clutter_actor_queue_redraw (self);
obj = G_OBJECT (self);
g_object_notify_by_pspec (obj, obj_props[PROP_CHILD_TRANSFORM]);
g_object_notify_by_pspec (obj, obj_props[PROP_CHILD_TRANSFORM_SET]);
_clutter_actor_create_transition (self, obj_props[PROP_CHILD_TRANSFORM],
&info->child_transform,
&new_transform);
}
/**