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/menus/eq_menu.c

@@ -391,7 +391,8 @@ bool eq_menu_graphical(void)
     enum eq_type current_type;
     char buf[24];
     int i, w, h, height, start_item, nb_eq_sliders[NB_SCREENS];
-    int barsenabled = viewportmanager_set_statusbar(VP_SB_HIDE_ALL);
+    FOR_NB_SCREENS(i)
+        viewportmanager_theme_enable(i, false, NULL);
 
 
     FOR_NB_SCREENS(i) {
@@ -570,12 +571,13 @@ bool eq_menu_graphical(void)
     }
 
     /* Reset screen settings */
-    FOR_NB_SCREENS(i) {
+    FOR_NB_SCREENS(i) 
+    {
         screens[i].setfont(FONT_UI);
         screens[i].clear_display();
         screens[i].set_viewport(NULL);
+        viewportmanager_theme_undo(i);
     }
-    viewportmanager_set_statusbar(barsenabled);
     return result;
 }