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actor: Add boxed margin accessors

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It can be convenient to be able to set, or get, all the components of an
actor's margin at the same time; since we already have a boxed type for
storing a margin, an accessors pair based on it is not a complicated
addition to the API.
This commit is contained in:
Emmanuele Bassi 2012-01-03 14:29:39 +00:00 committed by Emmanuele Bassi
parent 8de4b85175
commit ea6ddd1534
2 changed files with 88 additions and 0 deletions
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84
clutter/clutter-actor.c
View File

@ -14963,6 +14963,90 @@ G_DEFINE_BOXED_TYPE (ClutterMargin, clutter_margin,
clutter_margin_copy,
clutter_margin_free)
/**
* clutter_actor_set_margin:
* @self: a #ClutterActor
* @margin: a #ClutterMargin
*
* Sets all the components of the margin of a #ClutterActor.
*
* Since: 1.10
*/
void
clutter_actor_set_margin (ClutterActor *self,
const ClutterMargin *margin)
{
ClutterLayoutInfo *info;
gboolean changed;
GObject *obj;
g_return_if_fail (CLUTTER_IS_ACTOR (self));
g_return_if_fail (margin != NULL);
obj = G_OBJECT (self);
changed = FALSE;
g_object_freeze_notify (obj);
info = _clutter_actor_get_layout_info (self);
if (info->margin.top != margin->top)
{
info->margin.top = margin->top;
g_object_notify_by_pspec (obj, obj_props[PROP_MARGIN_TOP]);
changed = TRUE;
}
if (info->margin.right != margin->right)
{
info->margin.right = margin->right;
g_object_notify_by_pspec (obj, obj_props[PROP_MARGIN_RIGHT]);
changed = TRUE;
}
if (info->margin.bottom != margin->bottom)
{
info->margin.bottom = margin->bottom;
g_object_notify_by_pspec (obj, obj_props[PROP_MARGIN_BOTTOM]);
changed = TRUE;
}
if (info->margin.left != margin->left)
{
info->margin.left = margin->left;
g_object_notify_by_pspec (obj, obj_props[PROP_MARGIN_LEFT]);
changed = TRUE;
}
if (changed)
clutter_actor_queue_relayout (self);
g_object_thaw_notify (obj);
}
/**
* clutter_actor_get_margin:
* @self: a #ClutterActor
* @margin: (out caller-allocates): return location for a #ClutterMargin
*
* Retrieves all the components of the margin of a #ClutterActor.
*
* Since: 1.10
*/
void
clutter_actor_get_margin (ClutterActor *self,
ClutterMargin *margin)
{
const ClutterLayoutInfo *info;
g_return_if_fail (CLUTTER_IS_ACTOR (self));
g_return_if_fail (margin != NULL);
info = _clutter_actor_get_layout_info_or_defaults (self);
*margin = info->margin;
}
/**
* clutter_actor_set_margin_top:
* @self: a #ClutterActor

4
clutter/clutter-actor.h
View File

@ -396,6 +396,10 @@ gfloat clutter_actor_get_margin_left (ClutterActor
void clutter_actor_set_margin_right (ClutterActor *self,
gfloat margin);
gfloat clutter_actor_get_margin_right (ClutterActor *self);
void clutter_actor_set_margin (ClutterActor *self,
const ClutterMargin *margin);
void clutter_actor_get_margin (ClutterActor *self,
ClutterMargin *margin);
void clutter_actor_set_opacity (ClutterActor *self,
guint8 opacity);