FS#10824 - viewport/statusbar API rework.

Hopefully the only user visible changes are:
- fm and recording screens go by the statusbar setting (sbs or inbuilt)
- plugins go back to using the theme as they should for menus and lists
- splash screens might get cut a bit... entirely theme and splash dependant.. if there is a problematic one we can look at it later.
- hopefully nothing more than very minor screen flickerings... let me know exactly where they are so they can be fixed

New GUI screen rules:
* Screens assume that the theme (sbs+ui viewport+ maybe background image) are always enabled. They may be disabled on a per display basis, but MUST be re-enabled on exit
* Screens must not be coded in a way that requires a statusbar of any type.. the inbuilt bar will be removed shortly.
ALWAYS RESPECT THE USERS SETTINGS unless the screen requires the full display to fit.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23904 a1c6a512-1295-4272-9138-f99709370657

apps/gui/list.c

@@ -822,14 +822,17 @@ static const char* simplelist_static_getname(int item,
 bool simplelist_show_list(struct simplelist_info *info)
 {
     struct gui_synclist lists;
-    int action, old_line_count = simplelist_line_count;
-    int oldbars = viewportmanager_set_statusbar(VP_SB_ALLSCREENS);
+    int action, old_line_count = simplelist_line_count, i;
     const char* (*getname)(int item, void * data, char *buffer, size_t buffer_len);
     int wrap = LIST_WRAP_UNLESS_HELD;
     if (info->get_name)
         getname = info->get_name;
     else
         getname = simplelist_static_getname;
+        
+    FOR_NB_SCREENS(i)
+       viewportmanager_theme_enable(i, true, NULL);
+       
     gui_synclist_init(&lists, getname,  info->callback_data, 
                       info->scroll_all, info->selection_size, NULL);
 
@@ -904,7 +907,8 @@ bool simplelist_show_list(struct simplelist_info *info)
             return true;
     }
     talk_shutup();
-    viewportmanager_set_statusbar(oldbars);
+    FOR_NB_SCREENS(i)
+       viewportmanager_theme_undo(i);
     return false;
 }