Efl.Canvas.Group: implement Efl.Gfx.Filter

Summary: This patch makes Efl.Canvas.Group work for Efl.Gfx.Filter

Reviewers: Hermet, jsuya, zmike

Reviewed By: Hermet

Subscribers: zmike, cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D10435

src/lib/evas/canvas/efl_canvas_group.eo

@@ -1,4 +1,4 @@
-class Efl.Canvas.Group extends Efl.Canvas.Object
+class Efl.Canvas.Group extends Efl.Canvas.Object implements Efl.Gfx.Filter
 {
    [[A group object is a container for other canvas objects. Its children
      move along their parent and are often clipped with a common clipper.
@@ -127,6 +127,8 @@ class Efl.Canvas.Group extends Efl.Canvas.Object
       Efl.Gfx.Color.color { set; }
       Efl.Gfx.Entity.visible { set; }
       Efl.Gfx.Entity.position { set; }
+      Efl.Gfx.Entity.size { set; }
+      Efl.Gfx.Filter.filter_program { set; }
       Efl.Canvas.Object.clipper { set; }
       Efl.Canvas.Object.no_render { set; }
       Efl.Canvas.Object.paragraph_direction { get; set; }

src/lib/evas/canvas/evas_object_smart.c

@@ -23,6 +23,7 @@ struct _Evas_Smart_Data
       Eina_Rectangle bounding_box;
    } cur, prev;
    Evas_Object      *object;
+   Evas_Object      *filter_img;
    void             *engine_data;
    void             *data;
    Eina_Inlist      *callbacks;
@@ -909,6 +910,9 @@ _efl_canvas_group_efl_gfx_entity_visible_set(Eo *eo_obj, Evas_Smart_Data *o, Ein
 
         efl_gfx_entity_visible_set(clipper, vis);
      }
+
+   if (o->filter_img)
+      efl_gfx_entity_visible_set(o->filter_img, vis);
 }
 
 EOLIAN static void
@@ -927,6 +931,55 @@ _efl_canvas_group_efl_gfx_entity_position_set(Eo *eo_obj, Evas_Smart_Data *o, Ei
    if (o->clipped && !is_overridden)
      _evas_object_smart_clipped_smart_move_internal(eo_obj, pos.x, pos.y);
    efl_gfx_entity_position_set(efl_super(eo_obj, MY_CLASS), pos);
+   efl_gfx_entity_position_set(o->filter_img, pos);
+}
+
+EOLIAN static void
+_efl_canvas_group_efl_gfx_entity_size_set(Eo *obj, Evas_Smart_Data *o, Eina_Size2D size)
+{
+   if (_evas_object_intercept_call(obj, EVAS_OBJECT_INTERCEPT_CB_RESIZE, 0, size.w, size.h))
+     return;
+
+   efl_gfx_entity_size_set(efl_super(obj, MY_CLASS), size);
+   efl_gfx_entity_size_set(o->filter_img, size);
+}
+
+EOLIAN static void
+_efl_canvas_group_efl_gfx_filter_filter_program_set(Eo *eo_obj, Evas_Smart_Data *o,
+                                                    const char *code, const char *name)
+{
+   Evas_Object_Protected_Data *obj, *fobj;
+   obj = EVAS_OBJ_GET_OR_RETURN(eo_obj);
+
+   if (!code && !name)
+     {
+        if (o->filter_img)
+          {
+             evas_object_del(o->filter_img);
+             o->filter_img = NULL;
+          }
+        return;
+     }
+
+   if (o->filter_img)
+     {
+        efl_gfx_filter_program_set(o->filter_img, code, name);
+        return;
+     }
+
+   o->filter_img = efl_add(EFL_CANVAS_PROXY_CLASS, eo_obj,
+                           efl_gfx_fill_auto_set(efl_added, EINA_TRUE),
+                           efl_canvas_group_member_add(obj->object, efl_added),
+                           efl_canvas_proxy_source_events_set(efl_added, EINA_TRUE),
+                           efl_canvas_proxy_source_set(efl_added, eo_obj),
+                           evas_object_repeat_events_set(efl_added, EINA_TRUE),
+                           efl_gfx_filter_program_set(efl_added, code, name),
+                           efl_gfx_entity_geometry_set(efl_added, (Eina_Rect)obj->cur->geometry),
+                           efl_gfx_entity_visible_set(efl_added, obj->cur->visible));
+
+   fobj = efl_data_scope_get(o->filter_img, EFL_CANVAS_OBJECT_CLASS);
+   if (!fobj) return;
+   fobj->is_filter_object = EINA_TRUE;
 }
 
 EOLIAN static void

src/lib/evas/canvas/evas_render.c

@@ -2170,6 +2170,13 @@ evas_render_mapped(Evas_Public_Data *evas, Evas_Object *eo_obj,
                   EINA_INLIST_FOREACH
                      (evas_object_smart_members_get_direct(eo_obj), obj2)
                        {
+                          /* skip proxy object if its source is its smart parent.
+                             who makes this relation? a proxy object working for
+                             a smart object to set a filter program. the proxy
+                             object should be a member of smart object to sync
+                             stacking changes. */
+                          if (obj2->is_filter_object) continue;
+
                           clean_them |= evas_render_mapped(evas, obj2->object,
                                                            obj2, ctx,
                                                            output, surface,

src/lib/evas/include/evas_private.h

@@ -1228,6 +1228,7 @@ struct _Evas_Object_Protected_Data
 
    Eina_Bool                   events_filter_enabled : 1;
    Eina_Bool                   is_pointer_inside_legacy : 1;
+   Eina_Bool                   is_filter_object : 1;
 };
 
 struct _Evas_Data_Node