evas vg: add an new interface efl_canvas_vg_container_children_direct_get()

Summary: We need an efficient method to navigate children faster.

Subscribers: cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D10989

src/lib/evas/canvas/efl_canvas_vg_container.c

@@ -304,6 +304,12 @@ _efl_canvas_vg_container_children_get(Eo *obj EINA_UNUSED, Efl_Canvas_Vg_Contain
    return eina_list_iterator_new(pd->children);
 }
 
+static const Eina_List *
+_efl_canvas_vg_container_children_direct_get(Eo *obj EINA_UNUSED, Efl_Canvas_Vg_Container_Data *pd)
+{
+   return pd->children;
+}
+
 static Eina_Bool
 _efl_canvas_vg_container_efl_gfx_path_interpolate(Eo *obj, Efl_Canvas_Vg_Container_Data *pd, const Efl_VG *from, const Efl_VG *to, double pos_map)
 {

src/lib/evas/canvas/efl_canvas_vg_container.eo

@@ -13,6 +13,10 @@ class @beta Efl.Canvas.Vg.Container extends Efl.Canvas.Vg.Node
          [[Get all children of container]]
          return: iterator<Efl.Canvas.Vg.Node> @move @no_unused; [[Iterator to children]]
       }
+      children_direct_get {
+         [[Get all children of container]]
+         return: const(list<Efl.Canvas.Vg.Node>) @no_unused; [[List to children]]
+      }
    }
    implements {
       Efl.Object.constructor;

src/static_libs/vg_common/vg_common_json.c

@@ -378,11 +378,11 @@ _reset_vg_tree(Efl_VG *node)
    //Hide all nodes visibility
    if (efl_isa(node, EFL_CANVAS_VG_CONTAINER_CLASS))
      {
+        Eina_List *list = (Eina_List*) efl_canvas_vg_container_children_direct_get(node);
+        Eina_List *list2;
         Efl_VG* child;
-        Eina_Iterator *itr = efl_canvas_vg_container_children_get(node);
+        EINA_LIST_FOREACH(list, list2, child)
-        EINA_ITERATOR_FOREACH(itr, child)
           _reset_vg_tree(child);
-        if (itr) eina_iterator_free(itr);
      }
    efl_gfx_entity_visible_set(node, EINA_FALSE);
 }