refactor: scr -> screen, act->active, del->delete, remove in obj_clear_flag/state

docs/widgets/arc.rst

@@ -96,7 +96,7 @@ the object non-clickable:
 .. code:: c
 
    lv_obj_remove_style(arc, NULL, LV_PART_KNOB);
-   lv_obj_clear_flag(arc, LV_OBJ_FLAG_CLICKABLE);
+   lv_obj_remove_flag(arc, LV_OBJ_FLAG_CLICKABLE);
 
 Advanced hit test
 -----------------

docs/widgets/checkbox.rst

@@ -43,7 +43,7 @@ common state add/clear function:
 .. code:: c
 
    lv_obj_add_state(cb, LV_STATE_CHECKED);   /*Make the checkbox checked*/
-   lv_obj_clear_state(cb, LV_STATE_CHECKED); /*MAke the checkbox unchecked*/
+   lv_obj_remove_state(cb, LV_STATE_CHECKED); /*MAke the checkbox unchecked*/
    lv_obj_add_state(cb, LV_STATE_CHECKED | LV_STATE_DISABLED); /*Make the checkbox checked and disabled*/
 
 To get whether the checkbox is checked or not use:

docs/widgets/imgbtn.rst

@@ -46,7 +46,7 @@ they will be used in pressed state instead of the released images.
 States
 ------
 
-Instead of the regular ``lv_obj_add/clear_state()`` functions the
+Instead of the regular ``lv_obj_add/remove_state()`` functions the
 :cpp:expr:`lv_imgbtn_set_state(imgbtn, LV_IMGBTN_STATE_...)` functions should be
 used to manually set a state.
 

docs/widgets/obj.rst

@@ -115,7 +115,7 @@ representing a layout that covers the entire display.
 
 When you have created a screen like
 ``lv_obj_t * screen = lv_obj_create(NULL)``, you can make it active with
-:cpp:expr:`lv_scr_load(screen)`. The :cpp:func:`lv_scr_act` function gives you a
+:cpp:expr:`lv_screen_load(screen)`. The :cpp:func:`lv_screen_active` function gives you a
 pointer to the active screen.
 
 If you have multiple displays, it's important to know that the screen
@@ -154,7 +154,7 @@ Flags
 -----
 
 There are some attributes which can be enabled/disabled by
-``lv_obj_add/clear_flag(obj, LV_OBJ_FLAG_...)``:
+``lv_obj_add/remove_flag(obj, LV_OBJ_FLAG_...)``:
 
 -  :cpp:enumerator:`LV_OBJ_FLAG_HIDDEN` Make the object hidden. (Like it wasn't there at all)
 -  :cpp:enumerator:`LV_OBJ_FLAG_CLICKABLE` Make the object clickable by input devices
@@ -194,7 +194,7 @@ Some examples:
    lv_obj_add_flag(obj, LV_OBJ_FLAG_HIDDEN);
 
    /*Make an object non-clickable*/
-   lv_obj_clear_flag(obj, LV_OBJ_FLAG_CLICKABLE);
+   lv_obj_remove_flag(obj, LV_OBJ_FLAG_CLICKABLE);
 
 Groups
 ------

docs/widgets/switch.rst

@@ -34,7 +34,7 @@ To get the current state of the switch (with ``true`` being on), use
 :cpp:expr:`lv_obj_has_state(obj, LV_STATE_CHECKED)`.
 
 Call :cpp:expr:`lv_obj_add_state(obj, LV_STATE_CHECKED)` to turn it on, or
-:cpp:expr:`lv_obj_clear_state(obj, LV_STATE_CHECKED)` to turn it off.
+:cpp:expr:`lv_obj_remove_state(obj, LV_STATE_CHECKED)` to turn it off.
 
 Events
 ******

docs/widgets/textarea.rst

@@ -61,8 +61,8 @@ Delete character
 ----------------
 
 To delete a character from the left of the current cursor position use
-:cpp:expr:`lv_textarea_del_char(textarea)`. To delete from the right use
-:cpp:expr:`lv_textarea_del_char_forward(textarea)`
+:cpp:expr:`lv_textarea_delete_char(textarea)`. To delete from the right use
+:cpp:expr:`lv_textarea_delete_char_forward(textarea)`
 
 Move the cursor
 ---------------