gui: Remove redundant copies of list scrolling settings

gui_list_screen_scroll_step() and gui_list_screen_scroll_out_of_view()
just copy the global setting into a local static variable.
Since they don't do anything special when the setting changes
it's simpler to use the global setting directly.

Change-Id: Ib6a7bf4e09b6dabbc1597cf28ddbafc0bc857526

apps/gui/list.c

@@ -47,10 +47,6 @@
  */
 #define FRAMEDROP_TRIGGER 6
 
-static int offset_step = 16; /* pixels per screen scroll step */
-/* should lines scroll out of the screen */
-static bool offset_out_of_view = false;
-
 static void gui_list_select_at_offset(struct gui_synclist * gui_list,
                                       int offset);
 void list_draw(struct screen *display, struct gui_synclist *list);
@@ -207,7 +203,7 @@ int gui_list_get_item_offset(struct gui_synclist * gui_list,
 {
     int item_offset;
 
-    if (offset_out_of_view)
+    if (global_settings.offset_out_of_view)
     {
         item_offset = gui_list->offset_position[display->screen_type];
     }
@@ -439,16 +435,6 @@ void gui_synclist_del_item(struct gui_synclist * gui_list)
     }
 }
 
-void gui_list_screen_scroll_step(int ofs)
-{
-    offset_step = ofs;
-}
-
-void gui_list_screen_scroll_out_of_view(bool enable)
-{
-    offset_out_of_view = enable;
-}
-
 /*
  * Set the title and title icon of the list. Setting title to NULL disables
  * both the title and icon. Use NOICON if there is no icon.
@@ -556,7 +542,7 @@ static void gui_synclist_scroll_right(struct gui_synclist * lists)
         /* FIXME: This is a fake right boundry limiter. there should be some
         * callback function to find the longest item on the list in pixels,
         * to stop the list from scrolling past that point */
-        lists->offset_position[i] += offset_step;
+        lists->offset_position[i] += global_settings.screen_scroll_step;
         if (lists->offset_position[i] > 1000)
             lists->offset_position[i] = 1000;
     }
@@ -570,7 +556,7 @@ static void gui_synclist_scroll_left(struct gui_synclist * lists)
 {
     FOR_NB_SCREENS(i)
     {
-        lists->offset_position[i] -= offset_step;
+        lists->offset_position[i] -= global_settings.screen_scroll_step;
         if (lists->offset_position[i] < 0)
             lists->offset_position[i] = 0;
     }

apps/gui/list.h

@@ -198,11 +198,7 @@ struct gui_synclist
 
 
 extern void list_init(void);
-/* parse global setting to static int */
-extern void gui_list_screen_scroll_step(int ofs);
 
-/* parse global setting to static bool */
-extern void gui_list_screen_scroll_out_of_view(bool enable);
 extern void gui_synclist_init_display_settings(struct gui_synclist * list);
 extern void gui_synclist_init(
     struct gui_synclist * lists,

apps/menus/display_menu.c

@@ -332,22 +332,7 @@ MENUITEM_SETTING(list_accel_start_delay,
                  &global_settings.list_accel_start_delay, NULL);
 MENUITEM_SETTING(list_accel_wait, &global_settings.list_accel_wait, NULL);
 #endif /* HAVE_WHEEL_ACCELERATION */
-static int screenscroll_callback(int action,
-                                 const struct menu_item_ex *this_item,
-                                 struct gui_synclist *this_list)
-{
-    (void)this_item;
-    (void)this_list;
-    switch (action)
-    {
-        case ACTION_EXIT_MENUITEM:
-            gui_list_screen_scroll_out_of_view(global_settings.offset_out_of_view);
-            break;
-    }
-    return action;
-}
-MENUITEM_SETTING(offset_out_of_view, &global_settings.offset_out_of_view,
-                 screenscroll_callback);
+MENUITEM_SETTING(offset_out_of_view, &global_settings.offset_out_of_view, NULL);
 MENUITEM_SETTING(screen_scroll_step, &global_settings.screen_scroll_step, NULL);
 MENUITEM_SETTING(scroll_paginated, &global_settings.scroll_paginated, NULL);
 

apps/plugins/rb_info.c

@@ -428,7 +428,6 @@ int menu_action_cb(int *action, int selected_item, bool* exit, struct gui_syncli
 
                     if (cur->menuid == MENU_ID(M_TESTPUT))
                     {
-                        //rb->gui_list_screen_scroll_out_of_view(true);
                         synclist_set(cur->menuid, 0, cur->items, 1);
 #if LCD_DEPTH > 1
                         /* If line sep is set to automatic then outline cells */
@@ -473,7 +472,6 @@ int menu_action_cb(int *action, int selected_item, bool* exit, struct gui_syncli
     {
         if (lists->data == MENU_ID(M_TESTPUT))
         {
-            //rb->gui_list_screen_scroll_out_of_view(false);
             //lists->callback_draw_item = NULL;
             printcell_enable(lists, false, false);
         }

apps/settings.c

@@ -940,8 +940,6 @@ void settings_apply(bool read_disk)
 #endif
 
     lcd_scroll_step(global_settings.scroll_step);
-    gui_list_screen_scroll_step(global_settings.screen_scroll_step);
-    gui_list_screen_scroll_out_of_view(global_settings.offset_out_of_view);
     lcd_bidir_scroll(global_settings.bidir_limit);
     lcd_scroll_delay(global_settings.scroll_delay);
 

apps/settings_list.c

@@ -1227,13 +1227,11 @@ const struct settings_list settings[] = {
                 lcd_remote_bidir_scroll),
 #endif
     OFFON_SETTING(0, offset_out_of_view, LANG_SCREEN_SCROLL_VIEW,
-                  false, "Screen Scrolls Out Of View",
-                  gui_list_screen_scroll_out_of_view),
+                  false, "Screen Scrolls Out Of View", NULL),
     INT_SETTING(F_PADTITLE, scroll_step, LANG_SCROLL_STEP, 6, "scroll step",
                 UNIT_PIXEL, 1, LCD_WIDTH, 1, NULL, NULL, lcd_scroll_step),
     INT_SETTING(F_PADTITLE, screen_scroll_step, LANG_SCREEN_SCROLL_STEP, 16,
-                "screen scroll step", UNIT_PIXEL, 1, LCD_WIDTH, 1, NULL, NULL,
-                gui_list_screen_scroll_step),
+                "screen scroll step", UNIT_PIXEL, 1, LCD_WIDTH, 1, NULL, NULL, NULL),
     OFFON_SETTING(0,scroll_paginated,LANG_SCROLL_PAGINATED,
                   false,"scroll paginated",NULL),
     OFFON_SETTING(0,list_wraparound,LANG_LIST_WRAPAROUND,