10 files changed, 161 insertions, 49 deletions

diff --git a/apps/menus/display_menu.c b/apps/menus/display_menu.c
index 5d53cbfe16..83bd8066d5 100644
--- a/apps/menus/display_menu.c
+++ b/apps/menus/display_menu.c
@@ -50,10 +50,12 @@
 #include "rbunicode.h"
 
 #ifdef HAVE_BACKLIGHT
-static int selectivebacklight_callback(int action,const struct menu_item_ex *this_item)
+static int selectivebacklight_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:
@@ -69,10 +71,11 @@ static int selectivebacklight_callback(int action,const struct menu_item_ex *thi
     return action;
 }
 
-static int filterfirstkeypress_callback(int action,const struct menu_item_ex *this_item)
+static int filterfirstkeypress_callback(int action,
+                                        const struct menu_item_ex *this_item,
+                                        struct gui_synclist *this_list)
 {
     /*(void)this_item;REMOVED*/
-
     switch (action)
     {
         case ACTION_EXIT_MENUITEM:
@@ -81,7 +84,7 @@ static int filterfirstkeypress_callback(int action,const struct menu_item_ex *th
             set_remote_backlight_filter_keypress(
                                 global_settings.remote_bl_filter_first_keypress);
 #endif /* HAVE_REMOTE_LCD */
-            selectivebacklight_callback(action,this_item);/*uses Filter First KP*/
+            selectivebacklight_callback(action,this_item, this_list);/*uses Filter First KP*/
             break;
     }
 
@@ -118,9 +121,12 @@ static int selectivebacklight_set_mask(void* param)
 
 #endif /* HAVE_BACKLIGHT */
 #ifdef HAVE_LCD_FLIP
-static int flipdisplay_callback(int action,const struct menu_item_ex *this_item)
+static int flipdisplay_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:
@@ -265,9 +271,12 @@ MENUITEM_SETTING(remote_flip_display,
 #endif
 
 #ifdef HAVE_REMOTE_LCD_TICKING
-static int ticking_callback(int action,const struct menu_item_ex *this_item)
+static int ticking_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:
@@ -334,9 +343,12 @@ MENUITEM_SETTING(list_accel_start_delay,
 MENUITEM_SETTING(list_accel_wait, &global_settings.list_accel_wait, NULL);
 #endif /* HAVE_WHEEL_ACCELERATION */
 #ifdef HAVE_LCD_BITMAP
-static int screenscroll_callback(int action,const struct menu_item_ex *this_item)
+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:
@@ -375,9 +387,12 @@ MAKE_MENU(scroll_settings_menu, ID2P(LANG_SCROLL_MENU), 0, Icon_NOICON,
 /*    PEAK METER MENU              */
 
 #ifdef HAVE_LCD_BITMAP
-static int peakmeter_callback(int action,const struct menu_item_ex *this_item)
+static int peakmeter_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:
@@ -561,9 +576,12 @@ MAKE_MENU(peak_meter_menu, ID2P(LANG_PM_MENU), NULL, Icon_NOICON,
 
 
 #ifdef HAVE_TOUCHSCREEN
-static int touch_mode_callback(int action,const struct menu_item_ex *this_item)
+static int touch_mode_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: /* on exit */
@@ -573,10 +591,12 @@ static int touch_mode_callback(int action,const struct menu_item_ex *this_item)
     return action;
 }
 
-static int line_padding_callback(int action,const struct menu_item_ex *this_item)
+static int line_padding_callback(int action,
+                                 const struct menu_item_ex *this_item,
+                                 struct gui_synclist *this_list);
 {
     (void)this_item;
-
+    (void)this_list;
     if (action == ACTION_EXIT_MENUITEM)
         viewportmanager_theme_changed(THEME_LISTS);
     return action;
@@ -594,11 +614,14 @@ MAKE_MENU(touchscreen_menu, ID2P(LANG_TOUCHSCREEN_SETTINGS), NULL, Icon_NOICON,
             &touchscreen_menu_calibrate, &touchscreen_menu_reset_calibration);
 #endif
 
-static int codepage_callback(int action, const struct menu_item_ex *this_item)
+static int codepage_callback(int action,
+                             const struct menu_item_ex *this_item,
+                             struct gui_synclist *this_list)
 {
+    (void)this_item;
+    (void)this_list;
     static int old_codepage;
     int new_codepage = global_settings.default_codepage;
-    (void)this_item;
     switch (action)
     {
         case ACTION_ENTER_MENUITEM:
diff --git a/apps/menus/eq_menu.c b/apps/menus/eq_menu.c
index 7cbf7b5d90..b41e4b0981 100644
--- a/apps/menus/eq_menu.c
+++ b/apps/menus/eq_menu.c
@@ -81,16 +81,19 @@ static void eq_apply(void)
     }
 }
 
-static int eq_setting_callback(int action, const struct menu_item_ex *this_item)
+static int eq_setting_callback(int action,
+                               const struct menu_item_ex *this_item,
+                               struct gui_synclist *this_list)
 {
+    (void)this_list;
     switch (action)
     {
         case ACTION_ENTER_MENUITEM:
-            action = lowlatency_callback(action, this_item);
+            action = lowlatency_callback(action, this_item, NULL);
             break;
         case ACTION_EXIT_MENUITEM:
             eq_apply();
-            action = lowlatency_callback(action, this_item);
+            action = lowlatency_callback(action, this_item, NULL);
             break;
     }
 
diff --git a/apps/menus/menu_common.c b/apps/menus/menu_common.c
index e8a2a91f12..2ef48cc23b 100644
--- a/apps/menus/menu_common.c
+++ b/apps/menus/menu_common.c
@@ -31,9 +31,12 @@
 
 #if CONFIG_CODEC == SWCODEC
 /* Use this callback if your menu adjusts DSP settings. */
-int lowlatency_callback(int action, const struct menu_item_ex *this_item)
+int lowlatency_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_ENTER_MENUITEM: /* on entering an item */
diff --git a/apps/menus/menu_common.h b/apps/menus/menu_common.h
index bdf02a0092..e85ed8dc61 100644
--- a/apps/menus/menu_common.h
+++ b/apps/menus/menu_common.h
@@ -25,7 +25,9 @@
 #include "config.h"
 
 #if CONFIG_CODEC == SWCODEC
-int lowlatency_callback(int action, const struct menu_item_ex *this_item);
+int lowlatency_callback(int action,
+                        const struct menu_item_ex *this_item,
+                        struct gui_synclist *this_list);
 #endif
 
 #endif /* _MENU_COMMON_H */
diff --git a/apps/menus/playback_menu.c b/apps/menus/playback_menu.c
index 23f1cb55bf..bf770c0f11 100644
--- a/apps/menus/playback_menu.c
+++ b/apps/menus/playback_menu.c
@@ -45,9 +45,12 @@
 
 
 #if (CONFIG_CODEC == SWCODEC) && defined(HAVE_CROSSFADE)
-static int setcrossfadeonexit_callback(int action,const struct menu_item_ex *this_item)
+static int setcrossfadeonexit_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: /* on exit */
@@ -61,7 +64,9 @@ static int setcrossfadeonexit_callback(int action,const struct menu_item_ex *thi
 
 /***********************************/
 /*    PLAYBACK MENU                */
-static int playback_callback(int action,const struct menu_item_ex *this_item);
+static int playback_callback(int action,
+                             const struct menu_item_ex *this_item,
+                             struct gui_synclist *this_list);
 
 MENUITEM_SETTING(shuffle_item, &global_settings.playlist_shuffle, playback_callback);
 MENUITEM_SETTING(repeat_mode, &global_settings.repeat_mode, playback_callback);
@@ -73,9 +78,12 @@ MAKE_MENU(ff_rewind_settings_menu, ID2P(LANG_WIND_MENU), 0, Icon_NOICON,
           &ff_rewind_min_step, &ff_rewind_accel);
 #ifdef HAVE_DISK_STORAGE
 #if CONFIG_CODEC == SWCODEC
-static int buffermargin_callback(int action,const struct menu_item_ex *this_item)
+static int buffermargin_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: /* on exit */
@@ -115,9 +123,12 @@ MAKE_MENU(crossfade_settings_menu,ID2P(LANG_CROSSFADE),0, Icon_NOICON,
 
 /* replay gain submenu */
 
-static int replaygain_callback(int action,const struct menu_item_ex *this_item)
+static int replaygain_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: /* on exit */
@@ -147,9 +158,12 @@ MENUITEM_SETTING(spdif_enable, &global_settings.spdif_enable, NULL);
 MENUITEM_SETTING(next_folder, &global_settings.next_folder, NULL);
 MENUITEM_SETTING(constrain_next_folder,
                  &global_settings.constrain_next_folder, NULL);
-static int audioscrobbler_callback(int action,const struct menu_item_ex *this_item)
+static int audioscrobbler_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: /* on exit */
@@ -165,9 +179,12 @@ static int audioscrobbler_callback(int action,const struct menu_item_ex *this_it
 MENUITEM_SETTING(audioscrobbler, &global_settings.audioscrobbler, audioscrobbler_callback);
 
 
-static int cuesheet_callback(int action,const struct menu_item_ex *this_item)
+static int cuesheet_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: /* on exit */
@@ -236,8 +253,11 @@ MAKE_MENU(playback_settings,ID2P(LANG_PLAYBACK),0,
 #endif
          );
 
-static int playback_callback(int action,const struct menu_item_ex *this_item)
+static int playback_callback(int action,
+                             const struct menu_item_ex *this_item,
+                             struct gui_synclist *this_list)
 {
+    (void)this_list;
     static bool old_shuffle = false;
     static int old_repeat = 0;
     switch (action)
diff --git a/apps/menus/recording_menu.c b/apps/menus/recording_menu.c
index 54dc415de7..21c6cff5fb 100644
--- a/apps/menus/recording_menu.c
+++ b/apps/menus/recording_menu.c
@@ -69,7 +69,9 @@
 #include "exported_menus.h"
 
 static bool no_source_in_menu = false;
-static int recmenu_callback(int action,const struct menu_item_ex *this_item);
+static int recmenu_callback(int action,
+                             const struct menu_item_ex *this_item,
+                             struct gui_synclist *this_list);
 
 static int recsource_func(void)
 {
@@ -313,8 +315,11 @@ MENUITEM_FUNCTION(enc_global_config_menu_item, 0, ID2P(LANG_ENCODER_SETTINGS),
 #endif /* CONFIG_CODEC == SWCODEC */
 
 
-static int recmenu_callback(int action,const struct menu_item_ex *this_item)
+static int recmenu_callback(int action,
+                             const struct menu_item_ex *this_item,
+                             struct gui_synclist *this_list)
 {
+    (void)this_list;
     switch (action)
     {
         case ACTION_REQUEST_MENUITEM:
diff --git a/apps/menus/settings_menu.c b/apps/menus/settings_menu.c
index 67595498ad..2a08ab0a4e 100644
--- a/apps/menus/settings_menu.c
+++ b/apps/menus/settings_menu.c
@@ -59,9 +59,11 @@
 
 #ifndef HAS_BUTTON_HOLD
 static int selectivesoftlock_callback(int action,
-                                      const struct menu_item_ex *this_item)
+                                      const struct menu_item_ex *this_item,
+                                      struct gui_synclist *this_list)
 {
     (void)this_item;
+    (void)this_list;
 
     switch (action)
     {
@@ -176,7 +178,10 @@ MAKE_MENU(tagcache_menu, ID2P(LANG_TAGCACHE), 0, Icon_NOICON,
 
 /***********************************/
 /*    FILE VIEW MENU               */
-static int fileview_callback(int action,const struct menu_item_ex *this_item);
+static int fileview_callback(int action,
+                             const struct menu_item_ex *this_item,
+                             struct gui_synclist *this_list);
+
 MENUITEM_SETTING(sort_case, &global_settings.sort_case, NULL);
 MENUITEM_SETTING(sort_dir, &global_settings.sort_dir, fileview_callback);
 MENUITEM_SETTING(sort_file, &global_settings.sort_file, fileview_callback);
@@ -196,8 +201,11 @@ static int clear_start_directory(void)
 }
 MENUITEM_FUNCTION(clear_start_directory_item, 0, ID2P(LANG_RESET_START_DIR),
                   clear_start_directory, NULL, NULL, Icon_file_view_menu);
-static int fileview_callback(int action,const struct menu_item_ex *this_item)
+static int fileview_callback(int action,
+                             const struct menu_item_ex *this_item,
+                             struct gui_synclist *this_list)
 {
+    (void)this_list;
     static int oldval;
     int *variable = this_item->variable;
     switch (action)
@@ -236,9 +244,12 @@ MENUITEM_SETTING(battery_capacity, &global_settings.battery_capacity, NULL);
 MENUITEM_SETTING(battery_type, &global_settings.battery_type, NULL);
 #endif
 #ifdef HAVE_USB_CHARGING_ENABLE
-static int usbcharging_callback(int action,const struct menu_item_ex *this_item)
+static int usbcharging_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: /* on exit */
@@ -265,9 +276,12 @@ MAKE_MENU(battery_menu, ID2P(LANG_BATTERY_MENU), 0, Icon_NOICON,
 MENUITEM_SETTING(disk_spindown, &global_settings.disk_spindown, NULL);
 #endif
 #ifdef HAVE_DIRCACHE
-static int dircache_callback(int action,const struct menu_item_ex *this_item)
+static int dircache_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: /* on exit */
@@ -328,9 +342,12 @@ MAKE_MENU(keyclick_menu, ID2P(LANG_KEYCLICK), 0, Icon_NOICON,
 
 #if CONFIG_CODEC == MAS3507D
 void dac_line_in(bool enable);
-static int linein_callback(int action,const struct menu_item_ex *this_item)
+static int linein_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: /* on exit */
@@ -545,9 +562,11 @@ static int toggle_sleeptimer(void)
 /* Handle restarting a current sleep timer to the newly set default
    duration */
 static int sleeptimer_duration_cb(int action,
-    const struct menu_item_ex *this_item)
+                                  const struct menu_item_ex *this_item,
+                                  struct gui_synclist *this_list)
 {
     (void)this_item;
+    (void)this_list;
     static int initial_duration;
     switch (action)
     {
@@ -590,9 +609,12 @@ MAKE_MENU(startup_shutdown_menu, ID2P(LANG_STARTUP_SHUTDOWN),
 
 /***********************************/
 /*    BOOKMARK MENU                */
-static int bmark_callback(int action,const struct menu_item_ex *this_item)
+static int bmark_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: /* on exit */
@@ -623,9 +645,12 @@ MAKE_MENU(bookmark_settings_menu, ID2P(LANG_BOOKMARK_SETTINGS), 0,
 #ifdef HAVE_TAGCACHE
 #if CONFIG_CODEC == SWCODEC
 
-static int autoresume_callback(int action, const struct menu_item_ex *this_item)
+static int autoresume_callback(int action,
+                               const struct menu_item_ex *this_item,
+                               struct gui_synclist *this_list)
 {
     (void)this_item;
+    (void)this_list;
 
     if (action == ACTION_EXIT_MENUITEM  /* on exit */
         && global_settings.autoresume_enable
@@ -642,9 +667,11 @@ static int autoresume_callback(int action, const struct menu_item_ex *this_item)
 }
 
 static int autoresume_nexttrack_callback(int action,
-                                         const struct menu_item_ex *this_item)
+                                         const struct menu_item_ex *this_item,
+                                         struct gui_synclist *this_list)
 {
     (void)this_item;
+    (void)this_list;
     static int oldval = 0;
     switch (action)
     {
@@ -678,14 +705,20 @@ MAKE_MENU(autoresume_menu, ID2P(LANG_AUTORESUME),
 
 /***********************************/
 /*    VOICE MENU                   */
-static int talk_callback(int action,const struct menu_item_ex *this_item);
+static int talk_callback(int action,
+                         const struct menu_item_ex *this_item,
+                         struct gui_synclist *this_list);
+
 MENUITEM_SETTING(talk_menu_item, &global_settings.talk_menu, NULL);
 MENUITEM_SETTING(talk_dir_item, &global_settings.talk_dir, NULL);
 MENUITEM_SETTING(talk_dir_clip_item, &global_settings.talk_dir_clip, talk_callback);
 MENUITEM_SETTING(talk_file_item, &global_settings.talk_file, NULL);
 MENUITEM_SETTING(talk_file_clip_item, &global_settings.talk_file_clip, talk_callback);
-static int talk_callback(int action,const struct menu_item_ex *this_item)
+static int talk_callback(int action,
+                         const struct menu_item_ex *this_item,
+                         struct gui_synclist *this_list)
 {
+    (void)this_list;
     static int oldval = 0;
     switch (action)
     {
diff --git a/apps/menus/sound_menu.c b/apps/menus/sound_menu.c
index fb9a7fa26e..f39d980a35 100644
--- a/apps/menus/sound_menu.c
+++ b/apps/menus/sound_menu.c
@@ -38,9 +38,12 @@
 #include "option_select.h"
 #include "misc.h"
 
-static int volume_limit_callback(int action,const struct menu_item_ex *this_item)
+static int volume_limit_callback(int action,
+                                 const struct menu_item_ex *this_item,
+                                 struct gui_synclist *this_list)
 {
     (void)this_item;
+    (void)this_list;
 
     static struct int_setting volume_limit_int_setting;
     volume_limit_int_setting.option_callback = NULL;
@@ -147,8 +150,11 @@ MENUITEM_SETTING(func_mode, &global_settings.func_mode, NULL);
               &crossfeed_hf_attenuation, &crossfeed_hf_cutoff);
 
 #ifdef HAVE_PITCHCONTROL
-static int timestretch_callback(int action,const struct menu_item_ex *this_item)
+static int timestretch_callback(int action,
+                                const struct menu_item_ex *this_item,
+                                struct gui_synclist *this_list)
 {
+    (void)this_list;
     switch (action)
     {
         case ACTION_EXIT_MENUITEM: /* on exit */
@@ -156,7 +162,7 @@ static int timestretch_callback(int action,const struct menu_item_ex *this_item)
                 splash(HZ*2, ID2P(LANG_PLEASE_REBOOT));
             break;
     }
-    lowlatency_callback(action, this_item);
+    lowlatency_callback(action, this_item, NULL);
     return action;
 }
     MENUITEM_SETTING(timestretch_enabled,
diff --git a/apps/menus/theme_menu.c b/apps/menus/theme_menu.c
index f64ded1615..10d1291daa 100644
--- a/apps/menus/theme_menu.c
+++ b/apps/menus/theme_menu.c
@@ -182,20 +182,29 @@ static int statusbar_callback_ex(int action,const struct menu_item_ex *this_item
 }
 
 #ifdef HAVE_REMOTE_LCD
-static int statusbar_callback_remote(int action,const struct menu_item_ex *this_item)
+static int statusbar_callback_remote(int action,
+                                     const struct menu_item_ex *this_item,
+                                     struct gui_synclist *this_list)
 {
+    (void)this_list;
     return statusbar_callback_ex(action, this_item, SCREEN_REMOTE);
 }
 #endif
-static int statusbar_callback(int action,const struct menu_item_ex *this_item)
+static int statusbar_callback(int action,
+                             const struct menu_item_ex *this_item,
+                             struct gui_synclist *this_list)
 {
+    (void)this_list;
     return statusbar_callback_ex(action, this_item, SCREEN_MAIN);
 }
 
 #ifdef HAVE_BUTTONBAR
-static int buttonbar_callback(int action, const struct menu_item_ex *this_item)
+static int buttonbar_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:
@@ -369,9 +378,12 @@ MENUITEM_FUNCTION(browse_rfms, MENU_FUNC_USEPARAM,
 #endif
 
 
-static int showicons_callback(int action, const struct menu_item_ex *this_item)
+static int showicons_callback(int action,
+                             const struct menu_item_ex *this_item,
+                             struct gui_synclist *this_list)
 {
     (void)this_item;
+    (void)this_list;
     static bool old_icons;
     switch (action)
     {
diff --git a/apps/menus/time_menu.c b/apps/menus/time_menu.c
index 94e19b06aa..811996ca40 100644
--- a/apps/menus/time_menu.c
+++ b/apps/menus/time_menu.c
@@ -93,9 +93,12 @@ MENUITEM_FUNCTION(alarm_screen_call, 0, ID2P(LANG_ALARM_MOD_ALARM_MENU),
 /* This need only be shown if we dont have recording, because if we do
    then always show the setting item, because there will always be at least
    2 items */
-static int alarm_callback(int action,const struct menu_item_ex *this_item)
+static int alarm_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_REQUEST_MENUITEM:
@@ -204,9 +207,11 @@ static void draw_timedate(struct viewport *vp, struct screen *display)
 static struct viewport clock_vps[NB_SCREENS], menu[NB_SCREENS];
 static bool menu_was_pressed;
 static int time_menu_callback(int action,
-                       const struct menu_item_ex *this_item)
+                              const struct menu_item_ex *this_item,
+                              struct gui_synclist *this_list)
 {
     (void)this_item;
+    (void)this_list;
     static int last_redraw = 0;
     bool redraw = false;