Fix buttonbar handling/theme changed handling in lists.

The lists need to copy to a local parent if a list passes NULL as parent in the init. This was before the commit of custom ui vp, but I removed it since I (wrongly) thought using the ui vp as parent would be fine. Let the viewportmanager fire a event in case when a theme-related setting changed and simply the handling in the lists code.
However the buttonbar handling didn't work before anyway, since list code didn't know if the buttonbar was active (it asked a variable which was always false....).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22651 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 32 insertions, 29 deletions

diff --git a/apps/gui/list.c b/apps/gui/list.c
index 9b139dd47c..284b83012a 100644
--- a/apps/gui/list.c
+++ b/apps/gui/list.c
@@ -38,6 +38,7 @@
 #include "misc.h"
 #include "talk.h"
 #include "viewport.h"
+#include "appevents.h"
 
 #ifdef HAVE_LCD_CHARCELLS
 #define SCROLL_LIMIT 1
@@ -61,21 +62,41 @@ static void gui_list_select_at_offset(struct gui_synclist * gui_list,
 void list_draw(struct screen *display, struct gui_synclist *list);
 
 #ifdef HAVE_LCD_BITMAP
+static int list_need_reinit = false;
+static struct viewport parent[NB_SCREENS];
+
+static void list_force_reinit(void *param)
+{
+    (void)param;
+    list_need_reinit = true;
+}
+
+void list_init(void)
+{
+    add_event(GUI_EVENT_THEME_CHANGED, false, list_force_reinit);
+}
+
 static void list_init_viewports(struct gui_synclist *list)
 {
-    struct viewport* vp;
-    int i;
-    bool parent_used = (*list->parent != NULL);
+    int i, parent_used;
+
+    if (!list)
+        return;
+
+    parent_used = (*list->parent != &parent[SCREEN_MAIN]);
+
     if (!parent_used)
     {
-        vp = viewport_get_current_vp();
         FOR_NB_SCREENS(i)
-            list->parent[i] = &vp[i];
-    }
+        {
+            list->parent[i] = &parent[i];
+            viewport_set_defaults(&parent[i], i);
 #ifdef HAVE_BUTTONBAR
-    if (list && !parent_used && global_settings.buttonbar)
-        list->parent[0]->height -= BUTTONBAR_HEIGHT;
+        if (screens[i].has_buttonbar && !viewport_ui_vp_get_state(i))
+            list->parent[i]->height -= BUTTONBAR_HEIGHT;
 #endif
+        }
+    }
 }
 #else
 #define list_init_viewports(a)
@@ -135,12 +156,7 @@ void gui_synclist_init(struct gui_synclist * gui_list,
         if (list_parent)
             gui_list->parent[i] = &list_parent[i];
         else
-            gui_list->parent[i] =
-#ifdef HAVE_LCD_BITMAP
-                                    NULL;
-#else
-                                    &parent[i];
-#endif
+            gui_list->parent[i] = &parent[i];
     }
     list_init_viewports(gui_list);
     gui_list->limit_scroll = false;
@@ -209,26 +225,13 @@ int gui_list_get_item_offset(struct gui_synclist * gui_list,
 void gui_synclist_draw(struct gui_synclist *gui_list)
 {
     int i;
-    static struct gui_synclist *last_list = NULL;
-    static int last_count = -1;
-#ifdef HAVE_BUTTONBAR
-    static bool last_buttonbar = false;
-#endif
-    if (
-#ifdef HAVE_BUTTONBAR
-        last_buttonbar != screens[SCREEN_MAIN].has_buttonbar ||
-#endif
-        last_list != gui_list ||
-        gui_list->nb_items != last_count)
+#ifdef HAVE_LCD_BITMAP
+    if (list_need_reinit)
     {
         list_init_viewports(gui_list);
         gui_synclist_select_item(gui_list, gui_list->selected_item);
     }
-#ifdef HAVE_BUTTONBAR
-    last_buttonbar = screens[SCREEN_MAIN].has_buttonbar;
 #endif
-    last_count = gui_list->nb_items;
-    last_list = gui_list;
     FOR_NB_SCREENS(i)
     {
         list_draw(&screens[i], gui_list);