efl_animation: Implement scale animation

1 files changed, 94 insertions, 1 deletions

diff --git a/src/lib/evas/canvas/efl_animation_scale.c b/src/lib/evas/canvas/efl_animation_scale.c
index 36c2747d2b..97c2861b0a 100644
--- a/src/lib/evas/canvas/efl_animation_scale.c
+++ b/src/lib/evas/canvas/efl_animation_scale.c
@@ -30,6 +30,8 @@ struct _Evas_Object_Animation_Scale_Data
 {
    Evas_Object_Animation_Scale_Property from;
    Evas_Object_Animation_Scale_Property to;
+
+   Evas_Map *map;
 };
 
 EOLIAN static void
@@ -153,10 +155,95 @@ _efl_animation_scale_efl_animation_dup(Eo *eo_obj, Evas_Object_Animation_Scale_D
    return animation;
 }
 
+static Evas_Map *
+_map_dup(Eo *target)
+{
+   if (!target) return NULL;
+
+   Evas_Map *map = NULL;
+
+   if (evas_object_map_enable_get(target) && evas_object_map_get(target))
+     {
+        map = evas_map_dup(evas_object_map_get(target));
+        if (!map) return NULL;
+     }
+   else
+     {
+        map = evas_map_new(4);
+        if (!map) return NULL;
+        evas_map_util_points_populate_from_object_full(map, target, 0);
+     }
+
+   return map;
+}
+
+static void
+_map_init(Evas_Map *map)
+{
+   evas_map_util_object_move_sync_set(map, EINA_TRUE);
+
+   //FIXME: Need to consider smooth of map
+}
+
 static void
-_pre_animate_cb(void *data, const Efl_Event *event)
+_pre_start_cb(void *data EINA_UNUSED, const Efl_Event *event)
 {
+   EFL_ANIMATION_SCALE_DATA_GET(event->object, pd);
+
+   Eo *target = efl_animation_target_get(event->object);
+   if (!target) return;
+
+   pd->map = _map_dup(target);
+   if (!pd->map) return;
+
+   _map_init(pd->map);
+}
+
+static void
+_pre_animate_cb(void *data EINA_UNUSED, const Efl_Event *event)
+{
+   EFL_ANIMATION_SCALE_DATA_GET(event->object, pd);
    Efl_Animation_Animate_Event_Info *event_info = event->info;
+
+   double progress = event_info->progress;
+
+   Eo *target = efl_animation_target_get(event->object);
+   if (!target) return;
+
+   double scale_x =
+      (pd->from.scale_x * (1.0 - progress)) + (pd->to.scale_x * progress);
+
+   double scale_y =
+      (pd->from.scale_y * (1.0 - progress)) + (pd->to.scale_y * progress);
+
+   if (!pd->map)
+     {
+        pd->map = _map_dup(target);
+        if (!pd->map) return;
+
+        _map_init(pd->map);
+     }
+
+   Evas_Map *map = evas_map_dup(pd->map);
+
+   Evas_Coord x, y, w, h;
+   evas_object_geometry_get(target, &x, &y, &w, &h);
+
+   evas_map_util_zoom(map, scale_x, scale_y, x + (w / 2), y + (h / 2));
+
+   evas_object_map_set(target, map);
+   evas_object_map_enable_set(target, EINA_TRUE);
+
+   evas_map_free(map);
+}
+
+static void
+_pre_end_cb(void *data EINA_UNUSED, const Efl_Event *event)
+{
+   EFL_ANIMATION_SCALE_DATA_GET(event->object, pd);
+
+   evas_map_free(pd->map);
+   pd->map = NULL;
 }
 
 EOLIAN static Efl_Object *
@@ -168,9 +255,15 @@ _efl_animation_scale_efl_object_constructor(Eo *eo_obj, Evas_Object_Animation_Sc
    pd->from.scale_y = 1.0;
    pd->from.scale_z = 1.0;
 
+   //pre start event is supported within class only (protected event)
+   efl_event_callback_add(eo_obj, EFL_ANIMATION_EVENT_PRE_START, _pre_start_cb, NULL);
+
    //pre animate event is supported within class only (protected event)
    efl_event_callback_add(eo_obj, EFL_ANIMATION_EVENT_PRE_ANIMATE, _pre_animate_cb, NULL);
 
+   //pre end event is supported within class only (protected event)
+   efl_event_callback_add(eo_obj, EFL_ANIMATION_EVENT_PRE_END, _pre_end_cb, NULL);
+
    return eo_obj;
 }