clutter/stage: Add private method to get the stage-views of a rectangle

We'll need this method for implementing a new stage-views-on API for
ClutterActor which lists the stage views an actor is on.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1196
This commit is contained in:
Jonas Dreßler 2020-04-10 00:39:07 +02:00 committed by Carlos Garnacho
parent dfe33897db
commit e27d2702a8
2 changed files with 27 additions and 0 deletions

View File

@ -136,6 +136,9 @@ void _clutter_stage_presented (ClutterStage *stag
void clutter_stage_queue_actor_relayout (ClutterStage *stage, void clutter_stage_queue_actor_relayout (ClutterStage *stage,
ClutterActor *actor); ClutterActor *actor);
GList * clutter_stage_get_views_for_rect (ClutterStage *stage,
const graphene_rect_t *rect);
G_END_DECLS G_END_DECLS
#endif /* __CLUTTER_STAGE_PRIVATE_H__ */ #endif /* __CLUTTER_STAGE_PRIVATE_H__ */

View File

@ -4404,3 +4404,27 @@ _clutter_stage_get_max_view_scale_factor_for_rect (ClutterStage *stage,
*view_scale = scale; *view_scale = scale;
return TRUE; return TRUE;
} }
GList *
clutter_stage_get_views_for_rect (ClutterStage *stage,
const graphene_rect_t *rect)
{
ClutterStagePrivate *priv = stage->priv;
GList *views_for_rect = NULL;
GList *l;
for (l = _clutter_stage_window_get_views (priv->impl); l; l = l->next)
{
ClutterStageView *view = l->data;
cairo_rectangle_int_t view_layout;
graphene_rect_t view_rect;
clutter_stage_view_get_layout (view, &view_layout);
_clutter_util_rect_from_rectangle (&view_layout, &view_rect);
if (graphene_rect_intersection (&view_rect, rect, NULL))
views_for_rect = g_list_prepend (views_for_rect, view);
}
return views_for_rect;
}