static gboolean
st_container_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
StContainerPrivate *priv = ST_CONTAINER (actor)->priv;
GList *l;
if (!CLUTTER_ACTOR_CLASS (st_container_parent_class)->get_paint_volume (actor, volume))
return FALSE;
if (!clutter_actor_get_clip_to_allocation (actor))
{
/* Based on ClutterGroup/ClutterBox; include the children's
* paint volumes, since they may paint outside our allocation.
*/
for (l = priv->children; l != NULL; l = l->next)
{
ClutterActor *child = l->data;
const ClutterPaintVolume *child_volume;
child_volume = clutter_actor_get_transformed_paint_volume (child, actor);
if (!child_volume)
return FALSE;
clutter_paint_volume_union (volume, child_volume);
}
}
return TRUE;
}
static gboolean
clutter_group_real_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
GList *l;
if (priv->children == NULL)
return TRUE;
for (l = priv->children; l != NULL; l = l->next)
{
ClutterActor *child = l->data;
const ClutterPaintVolume *child_volume;
/* This gets the paint volume of the child transformed into the
* group's coordinate space... */
child_volume = clutter_actor_get_transformed_paint_volume (child, actor);
if (!child_volume)
return FALSE;
clutter_paint_volume_union (volume, child_volume);
}
return TRUE;
}
static gboolean
shell_generic_container_get_paint_volume (ClutterActor *self,
ClutterPaintVolume *volume)
{
ClutterActorBox paint_box, alloc_box;
StThemeNode *theme_node;
ClutterVertex origin;
/* Setting the paint volume does not make sense when we don't have any allocation */
if (!clutter_actor_has_allocation (self))
return FALSE;
theme_node = st_widget_get_theme_node (ST_WIDGET (self));
clutter_actor_get_allocation_box (self, &alloc_box);
st_theme_node_get_paint_box (theme_node, &alloc_box, &paint_box);
origin.x = paint_box.x1 - alloc_box.x1;
origin.y = paint_box.y1 - alloc_box.y1;
origin.z = 0.0f;
clutter_paint_volume_set_origin (volume, &origin);
clutter_paint_volume_set_width (volume, paint_box.x2 - paint_box.x1);
clutter_paint_volume_set_height (volume, paint_box.y2 - paint_box.y1);
if (!clutter_actor_get_clip_to_allocation (self))
{
ClutterActor *child;
/* Based on ClutterGroup/ClutterBox; include the children's
* paint volumes, since they may paint outside our allocation.
*/
for (child = clutter_actor_get_first_child (self);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
const ClutterPaintVolume *child_volume;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
if (shell_generic_container_get_skip_paint (SHELL_GENERIC_CONTAINER (self), child))
continue;
child_volume = clutter_actor_get_transformed_paint_volume (child, self);
if (!child_volume)
return FALSE;
clutter_paint_volume_union (volume, child_volume);
}
}
return TRUE;
}
/**
* clutter_paint_volume_union_box:
* @pv: a #ClutterPaintVolume
* @box: a #ClutterActorBox to union to @pv
*
* Unions the 2D region represented by @box to a #ClutterPaintVolume.
*
* This function is similar to clutter_paint_volume_union(), but it is
* specific for 2D regions.
*
* Since: 1.10
*/
void
clutter_paint_volume_union_box (ClutterPaintVolume *pv,
const ClutterActorBox *box)
{
ClutterPaintVolume volume;
ClutterVertex origin;
g_return_if_fail (pv != NULL);
g_return_if_fail (box != NULL);
_clutter_paint_volume_init_static (&volume, pv->actor);
origin.x = box->x1;
origin.y = box->y1;
origin.z = 0.f;
clutter_paint_volume_set_origin (&volume, &origin);
clutter_paint_volume_set_width (&volume, box->x2 - box->x1);
clutter_paint_volume_set_height (&volume, box->y2 - box->y1);
clutter_paint_volume_union (pv, &volume);
clutter_paint_volume_free (&volume);
}
/* Adapted from clutter_actor_update_default_paint_volume() */
static gboolean
meta_window_group_get_paint_volume (ClutterActor *self,
ClutterPaintVolume *volume)
{
ClutterActorIter iter;
ClutterActor *child;
clutter_actor_iter_init (&iter, self);
while (clutter_actor_iter_next (&iter, &child))
{
const ClutterPaintVolume *child_volume;
if (!CLUTTER_ACTOR_IS_MAPPED (child))
continue;
child_volume = clutter_actor_get_transformed_paint_volume (child, self);
if (child_volume == NULL)
return FALSE;
clutter_paint_volume_union (volume, child_volume);
}
return TRUE;
}
