diff --git a/legacy/edje/src/lib/edje_calc.c b/legacy/edje/src/lib/edje_calc.c
index f62f26ab9d..37a41edd77 100644
--- a/legacy/edje/src/lib/edje_calc.c
+++ b/legacy/edje/src/lib/edje_calc.c
@@ -135,6 +135,14 @@ _edje_part_description_apply(Edje *ed, Edje_Real_Part *ep, const char *d1, doubl
 
 void
 _edje_recalc(Edje *ed)
+{
+   if (ed->postponed) return ;
+   evas_object_smart_changed(ed->obj);
+   ed->postponed = 1;
+}
+
+void
+_edje_recalc_do(Edje *ed)
 {
    int i;
 
@@ -142,7 +150,8 @@ _edje_recalc(Edje *ed)
    if (ed->freeze)
      {
 	ed->recalc = 1;
-	if (!ed->calc_only) return;
+	if (!ed->calc_only &&
+	    !ed->postponed) return;
      }
    for (i = 0; i < ed->table_parts_size; i++)
      {
@@ -161,6 +170,7 @@ _edje_recalc(Edje *ed)
 	  _edje_part_recalc(ed, ep, (~ep->calculated) & FLAG_XY);
      }
    ed->dirty = 0;
+   ed->postponed = 0;
    if (!ed->calc_only) ed->recalc = 0;
 }
 
diff --git a/legacy/edje/src/lib/edje_private.h b/legacy/edje/src/lib/edje_private.h
index 4bc95ccfea..603ab3ef5e 100644
--- a/legacy/edje/src/lib/edje_private.h
+++ b/legacy/edje/src/lib/edje_private.h
@@ -681,6 +681,7 @@ struct _Edje
    unsigned short        walking_actions : 1;
    unsigned short        block_break : 1;
    unsigned short        delete_me : 1;
+   unsigned short        postponed : 1;
 };
 
 struct _Edje_Real_Part
@@ -1007,6 +1008,7 @@ void  _edje_part_pos_set(Edje *ed, Edje_Real_Part *ep, int mode, double pos);
 Edje_Part_Description *_edje_part_description_find(Edje *ed, Edje_Real_Part *rp, const char *name, double val);
 void  _edje_part_description_apply(Edje *ed, Edje_Real_Part *ep, const char  *d1, double v1, const char *d2, double v2);
 void  _edje_recalc(Edje *ed);
+void  _edje_recalc_do(Edje *ed);
 int   _edje_part_dragable_calc(Edje *ed, Edje_Real_Part *ep, double *x, double *y);
 void  _edje_dragable_pos_set(Edje *ed, Edje_Real_Part *ep, double x, double y);
 
diff --git a/legacy/edje/src/lib/edje_smart.c b/legacy/edje/src/lib/edje_smart.c
index b4f027ff5e..a3b23abc53 100644
--- a/legacy/edje/src/lib/edje_smart.c
+++ b/legacy/edje/src/lib/edje_smart.c
@@ -13,6 +13,7 @@ static void _edje_smart_hide(Evas_Object * obj);
 static void _edje_smart_color_set(Evas_Object * obj, int r, int g, int b, int a);
 static void _edje_smart_clip_set(Evas_Object * obj, Evas_Object * clip);
 static void _edje_smart_clip_unset(Evas_Object * obj);
+static void _edje_smart_calculate(Evas_Object * obj);
 
 static Evas_Smart *_edje_smart = NULL;
 
@@ -45,6 +46,7 @@ edje_object_add(Evas *evas)
 	       _edje_smart_color_set,
 	       _edje_smart_clip_set,
 	       _edje_smart_clip_unset,
+	       _edje_smart_calculate,
 	       NULL
 	  };
 	_edje_smart = evas_smart_class_new(&sc);
@@ -237,3 +239,13 @@ _edje_smart_clip_unset(Evas_Object * obj)
    evas_object_clip_unset(ed->clipper);
 //   _edje_emit(ed, "clip_unset", NULL);
 }
+
+static void
+_edje_smart_calculate(Evas_Object *obj)
+{
+   Edje *ed;
+
+   ed = evas_object_smart_data_get(obj);
+   if (!ed) return;
+   _edje_recalc_do(ed);
+}
diff --git a/legacy/edje/src/lib/edje_util.c b/legacy/edje/src/lib/edje_util.c
index 4d91bd62ee..ec3eb3f924 100644
--- a/legacy/edje/src/lib/edje_util.c
+++ b/legacy/edje/src/lib/edje_util.c
@@ -715,6 +715,10 @@ edje_object_part_object_get(const Evas_Object *obj, const char *part)
 
    ed = _edje_fetch(obj);
    if ((!ed) || (!part)) return NULL;
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp) return NULL;
    return rp->object;
@@ -748,6 +752,10 @@ edje_object_part_geometry_get(const Evas_Object *obj, const char *part, Evas_Coo
 	if (h) *h = 0;
 	return;
      }
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp)
      {
@@ -828,6 +836,10 @@ edje_object_part_text_get(const Evas_Object *obj, const char *part)
 
    ed = _edje_fetch(obj);
    if ((!ed) || (!part)) return NULL;
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp) return NULL;
    if (rp->part->type == EDJE_PART_TYPE_TEXT)
@@ -855,6 +867,10 @@ edje_object_part_swallow(Evas_Object *obj, const char *part, Evas_Object *obj_sw
 
    ed = _edje_fetch(obj);
    if ((!ed) || (!part)) return;
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp) return;
    if (rp->part->type != EDJE_PART_TYPE_SWALLOW) return;
@@ -1021,7 +1037,7 @@ edje_object_part_unswallow(Evas_Object *obj, Evas_Object *obj_swallow)
 	rp->swallow_params.max.w = 0;
 	rp->swallow_params.max.h = 0;
 	rp->edje->dirty = 1;
-	_edje_recalc(rp->edje);
+	_edje_recalc_do(rp->edje);
 	return;
      }
 }
@@ -1039,6 +1055,10 @@ edje_object_part_swallow_get(const Evas_Object *obj, const char *part)
 
    ed = _edje_fetch(obj);
    if ((!ed) || (!part)) return NULL;
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp) return NULL;
    return rp->swallowed_object;
@@ -1088,6 +1108,10 @@ edje_object_size_max_get(const Evas_Object *obj, Evas_Coord *maxw, Evas_Coord *m
 	if (maxh) *maxh = 0;
 	return;
      }
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    if (ed->collection->prop.max.w == 0)
      {
 	/* XXX TODO: convert maxw to 0, fix things that break. */
@@ -1125,7 +1149,7 @@ edje_object_calc_force(Evas_Object *obj)
    ed->dirty = 1;
    pf = ed->freeze;
    ed->freeze = 0;
-   _edje_recalc(ed);
+   _edje_recalc_do(ed);
    ed->freeze = pf;
 }
 
@@ -1187,7 +1211,7 @@ edje_object_size_min_restricted_calc(Evas_Object *obj, Evas_Coord *minw, Evas_Co
 
 	ok = 0;
 	ed->dirty = 1;
-	_edje_recalc(ed);
+	_edje_recalc_do(ed);
 	if (reset_maxwh)
 	  {
 	     maxw = 0;
@@ -1291,6 +1315,10 @@ edje_object_part_state_get(const Evas_Object *obj, const char *part, double *val
 	if (val_ret) *val_ret = 0;
 	return "";
      }
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp)
      {
@@ -1335,6 +1363,10 @@ edje_object_part_drag_dir_get(const Evas_Object *obj, const char *part)
 
    ed = _edje_fetch(obj);
    if ((!ed) || (!part)) return EDJE_DRAG_DIR_NONE;
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp) return EDJE_DRAG_DIR_NONE;
    if ((rp->part->dragable.x) && (rp->part->dragable.y)) return EDJE_DRAG_DIR_XY;
@@ -1399,6 +1431,10 @@ edje_object_part_drag_value_get(const Evas_Object *obj, const char *part, double
 	if (dy) *dy = 0;
 	return;
      }
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp)
      {
@@ -1464,6 +1500,10 @@ edje_object_part_drag_size_get(const Evas_Object *obj, const char *part, double
 	if (dh) *dh = 0;
 	return;
      }
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp)
      {
@@ -1522,6 +1562,10 @@ edje_object_part_drag_step_get(const Evas_Object *obj, const char *part, double
 	if (dy) *dy = 0;
 	return;
      }
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp)
      {
@@ -1580,6 +1624,10 @@ edje_object_part_drag_page_get(const Evas_Object *obj, const char *part, double
 	if (dy) *dy = 0;
 	return;
      }
+
+   /* Need to recalc before providing the object. */
+   _edje_recalc_do(ed);
+
    rp = _edje_real_part_recursive_get(ed, (char *)part);
    if (!rp)
      {
@@ -2097,5 +2145,5 @@ _edje_real_part_swallow(Edje_Real_Part *rp, Evas_Object *obj_swallow)
      evas_object_precise_is_inside_set(obj_swallow, 1);
 
    rp->edje->dirty = 1;
-   _edje_recalc(rp->edje);
+   _edje_recalc_do(rp->edje);
 }
diff --git a/legacy/emotion/src/lib/emotion_smart.c b/legacy/emotion/src/lib/emotion_smart.c
index 5943820564..848bc2ea29 100644
--- a/legacy/emotion/src/lib/emotion_smart.c
+++ b/legacy/emotion/src/lib/emotion_smart.c
@@ -1164,6 +1164,7 @@ _smart_init(void)
 	       _smart_color_set,
 	       _smart_clip_set,
 	       _smart_clip_unset,
+	       NULL,
 	       NULL
 	  };
         smart = evas_smart_class_new(&sc);
diff --git a/legacy/evas/src/lib/Evas.h b/legacy/evas/src/lib/Evas.h
index 73156d6cf9..e5c1e44428 100644
--- a/legacy/evas/src/lib/Evas.h
+++ b/legacy/evas/src/lib/Evas.h
@@ -137,7 +137,7 @@ typedef enum _Evas_Aspect_Control
 } Evas_Aspect_Control;
 
 
-#define EVAS_SMART_CLASS_VERSION 1 /** the version you have to put into the version field in the smart class struct */
+#define EVAS_SMART_CLASS_VERSION 2 /** the version you have to put into the version field in the smart class struct */
 struct _Evas_Smart_Class /** a smart object class */
 {
    const char *name; /** the string name of the class */
@@ -153,6 +153,7 @@ struct _Evas_Smart_Class /** a smart object class */
    void  (*color_set)   (Evas_Object *o, int r, int g, int b, int a); // FIXME: DELETE ME
    void  (*clip_set)    (Evas_Object *o, Evas_Object *clip); // FIXME: DELETE ME
    void  (*clip_unset)  (Evas_Object *o); // FIXME: DELETE ME
+   void  (*calculate)   (Evas_Object *o);
 
    const void *data;
 };
@@ -767,6 +768,11 @@ extern "C" {
    EAPI void              evas_object_smart_callback_add    (Evas_Object *obj, const char *event, void (*func) (void *data, Evas_Object *obj, void *event_info), const void *data);
    EAPI void             *evas_object_smart_callback_del    (Evas_Object *obj, const char *event, void (*func) (void *data, Evas_Object *obj, void *event_info));
    EAPI void              evas_object_smart_callback_call   (Evas_Object *obj, const char *event, void *event_info);
+   EAPI void              evas_object_smart_changed         (Evas_Object *obj);
+   EAPI void              evas_object_smart_need_recalculate_set(Evas_Object *obj, Evas_Bool value);
+   EAPI Evas_Bool         evas_object_smart_need_recalculate_get(Evas_Object *obj);
+   EAPI void               evas_object_smart_calculate      (Evas_Object *obj);
+
 
 /* events */
    EAPI void              evas_event_freeze                 (Evas *e);
diff --git a/legacy/evas/src/lib/canvas/evas_main.c b/legacy/evas/src/lib/canvas/evas_main.c
index 27b3ce6ed8..1a9b34c8bb 100644
--- a/legacy/evas/src/lib/canvas/evas_main.c
+++ b/legacy/evas/src/lib/canvas/evas_main.c
@@ -70,6 +70,7 @@ evas_new(void)
    evas_array_setup(&e->pending_objects, 16);
    evas_array_setup(&e->obscuring_objects, 16);
    evas_array_setup(&e->temporary_objects, 16);
+   evas_array_setup(&e->calculate_objects, 16);
 
    return e;
 }
diff --git a/legacy/evas/src/lib/canvas/evas_object_smart.c b/legacy/evas/src/lib/canvas/evas_object_smart.c
index 811cb813a7..608a8282c7 100644
--- a/legacy/evas/src/lib/canvas/evas_object_smart.c
+++ b/legacy/evas/src/lib/canvas/evas_object_smart.c
@@ -13,6 +13,7 @@ struct _Evas_Object_Smart
    Evas_Object_List *contained;
    int               walking_list;
    Evas_Bool         deletions_waiting : 1;
+   Evas_Bool         need_recalculate : 1;
 };
 
 struct _Evas_Smart_Callback
@@ -436,6 +437,163 @@ evas_object_smart_callback_call(Evas_Object *obj, const char *event, void *event
    evas_object_smart_callbacks_clear(obj);
 }
 
+/**
+ * Set the need_recalculate flag of given smart object.
+ *
+ * If this flag is set then calculate() callback (method) of the given
+ * smart object will be called, if one is provided, during render phase
+ * usually evas_render(). After this step, this flag will be automatically
+ * unset.
+ *
+ * If no calculate() is provided, this flag will be left unchanged.
+ *
+ * @note just setting this flag will not make scene dirty and evas_render()
+ *       will have no effect. To do that, use evas_object_smart_changed(),
+ *       that will automatically call this function with 1 as parameter.
+ *
+ * @param obj the smart object
+ * @param value if one want to set or unset the need_recalculate flag.
+ *
+ * @ingroup Evas_Smart_Object_Group
+ */
+EAPI void
+evas_object_smart_need_recalculate_set(Evas_Object *obj, Evas_Bool value)
+{
+   Evas_Object_Smart *o;
+   MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
+   return;
+   MAGIC_CHECK_END();
+   o = obj->object_data;
+   MAGIC_CHECK(o, Evas_Object_Smart, MAGIC_OBJ_SMART);
+   return;
+   MAGIC_CHECK_END();
+
+   value = !!value;
+   if (o->need_recalculate == value)
+     return;
+   o->need_recalculate = value;
+
+   if (!obj->smart.smart->smart_class->calculate)
+     return;
+
+   /* XXX: objects can be present multiple times in calculate_objects()
+    * XXX: after a set-unset-set cycle, but it's not a problem since
+    * XXX: on _evas_render_call_smart_calculate() will check for the flag
+    * XXX: and it will be unset after the first.
+    */
+   if (o->need_recalculate)
+     {
+	Evas *e;
+	e = obj->layer->evas;
+	_evas_array_append(&e->calculate_objects, obj);
+     }
+   /* TODO: else, remove from array */
+}
+
+/**
+ * Get the current value of need_recalculate flag.
+ *
+ * @note this flag will be unset during the render phase, after calculate()
+ *       is called if one is provided.  If no calculate() is provided, then
+ *       the flag will be left unchanged after render phase.
+ *
+ * @param obj the smart object
+ * @return if flag is set or not.
+ *
+ * @ingroup Evas_Smart_Object_Group
+ */
+EAPI Evas_Bool
+evas_object_smart_need_recalculate_get(Evas_Object *obj)
+{
+   Evas_Object_Smart *o;
+   MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
+   return;
+   MAGIC_CHECK_END();
+   o = obj->object_data;
+   MAGIC_CHECK(o, Evas_Object_Smart, MAGIC_OBJ_SMART);
+   return;
+   MAGIC_CHECK_END();
+
+   return o->need_recalculate;
+}
+
+/**
+ * Call user provided calculate() and unset need_calculate.
+ *
+ * @param obj the smart object
+ * @return if flag is set or not.
+ *
+ * @ingroup Evas_Smart_Object_Group
+ */
+EAPI void
+evas_object_smart_calculate(Evas_Object *obj)
+{
+   Evas_Object_Smart *o;
+   MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
+   return;
+   MAGIC_CHECK_END();
+   o = obj->object_data;
+   MAGIC_CHECK(o, Evas_Object_Smart, MAGIC_OBJ_SMART);
+   return;
+   MAGIC_CHECK_END();
+
+   if (obj->smart.smart->smart_class->calculate)
+     obj->smart.smart->smart_class->calculate(obj);
+   o->need_recalculate = 0;
+}
+
+/**
+ * Call calculate() on all smart objects that need_recalculate.
+ *
+ * @internal
+ */
+void
+evas_call_smarts_calculate(Evas *e)
+{
+   Evas_Array *calculate;
+   unsigned int i;
+
+   calculate = &e->calculate_objects;
+   for (i = 0; i < calculate->count; ++i)
+     {
+	Evas_Object *obj;
+	Evas_Object_Smart *o;
+
+	obj = _evas_array_get(calculate, i);
+	if (obj->delete_me)
+	  continue;
+
+	o = obj->object_data;
+	if (o->need_recalculate)
+	  {
+	     obj->smart.smart->smart_class->calculate(obj);
+	     o->need_recalculate = 0;
+	  }
+     }
+
+   evas_array_flush(calculate);
+}
+
+/**
+ * Mark smart object as changed, dirty.
+ *
+ * This will inform the scene that it changed and needs to be redraw, also
+ * setting need_recalculate on the given object.
+ *
+ * @see evas_object_smart_need_recalculate_set().
+ *
+ * @ingroup Evas_Smart_Object_Group
+ */
+EAPI void
+evas_object_smart_changed(Evas_Object *obj)
+{
+   MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
+   return;
+   MAGIC_CHECK_END();
+   evas_object_change(obj);
+   evas_object_smart_need_recalculate_set(obj, 1);
+}
+
 /* internal calls */
 static void
 evas_object_smart_callbacks_clear(Evas_Object *obj)
diff --git a/legacy/evas/src/lib/canvas/evas_render.c b/legacy/evas/src/lib/canvas/evas_render.c
index 8eb6a9670c..c36d4389b4 100644
--- a/legacy/evas/src/lib/canvas/evas_render.c
+++ b/legacy/evas/src/lib/canvas/evas_render.c
@@ -341,6 +341,8 @@ evas_render_updates_internal(Evas *e, unsigned char make_updates, unsigned char
    MAGIC_CHECK_END();
    if (!e->changed) return NULL;
 
+   evas_call_smarts_calculate(e);
+
    /* Check if the modified object mean recalculating every thing */
    if (!e->invalidate)
      _evas_render_check_pending_objects(&e->pending_objects, e);
diff --git a/legacy/evas/src/lib/include/evas_private.h b/legacy/evas/src/lib/include/evas_private.h
index d2d56710ba..2f6a790a1b 100644
--- a/legacy/evas/src/lib/include/evas_private.h
+++ b/legacy/evas/src/lib/include/evas_private.h
@@ -288,6 +288,7 @@ struct _Evas
    Evas_Array	  pending_objects;
    Evas_Array     obscuring_objects;
    Evas_Array     temporary_objects;
+   Evas_Array     calculate_objects;
 
    int            delete_grabs;
    int            walking_grabs;
@@ -713,6 +714,7 @@ void evas_object_smart_member_lower(Evas_Object *member);
 void evas_object_smart_member_stack_above(Evas_Object *member, Evas_Object *other);
 void evas_object_smart_member_stack_below(Evas_Object *member, Evas_Object *other);
 const Evas_Object_List *evas_object_smart_members_get_direct(const Evas_Object *obj);
+void evas_call_smarts_calculate(Evas *e);
 void *evas_mem_calloc(int size);
 void evas_object_event_callback_all_del(Evas_Object *obj);
 void evas_object_event_callback_cleanup(Evas_Object *obj);