From 360ae3ebdcfb5392fad4383b90248f15f563694f Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 2 Aug 2002 13:20:03 +0000
Subject: Magnus Holmgren's fix that now enables us to toggle shuffle on/off
 from the menu and it'll "take effect" immediately when needing to reload the
 playlist.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1526 a1c6a512-1295-4272-9138-f99709370657
---
 apps/playlist.c      | 21 ++++++++++++++++++++-
 apps/playlist.h      |  1 +
 apps/settings_menu.c | 13 +++++++++++++
 3 files changed, 34 insertions(+), 1 deletion(-)

(limited to 'apps')

diff --git a/apps/playlist.c b/apps/playlist.c
index 622750f5c3..fdd88a17bc 100644
--- a/apps/playlist.c
+++ b/apps/playlist.c
@@ -242,7 +242,7 @@ void randomise_playlist( playlist_info_t *playlist, unsigned int seed )
     srand( seed );
 
     /* randomise entire indices list */
-    for(count = playlist->amount - 1; count ; count--)
+    for(count = playlist->amount - 1; count >= 0; count--)
     {
         /* the rand is from 0 to RAND_MAX, so adjust to our value range */
         candidate = rand() % (count + 1);
@@ -254,6 +254,25 @@ void randomise_playlist( playlist_info_t *playlist, unsigned int seed )
     }
 }
 
+static int compare(const void* p1, const void* p2)
+{
+    int* e1 = (int*) p1;
+    int* e2 = (int*) p2;
+
+    return *e1 - *e2;
+}
+
+/*
+ * sort the array of indices for the playlist
+ */
+void sort_playlist( playlist_info_t *playlist )
+{
+    if (playlist->amount > 0)
+    {
+        qsort(&playlist->indices, playlist->amount, sizeof(playlist->indices[0]), compare);
+    }
+}
+
 /* -----------------------------------------------------------------
  * local variables:
  * eval: (load-file "../firmware/rockbox-mode.el")
diff --git a/apps/playlist.h b/apps/playlist.h
index 59e0a78bf6..3d37c5da5f 100644
--- a/apps/playlist.h
+++ b/apps/playlist.h
@@ -41,6 +41,7 @@ extern bool playlist_shuffle;
 void play_list(char *dir, char *file);
 char* playlist_next(int steps, char *dirname);
 void randomise_playlist( playlist_info_t *playlist, unsigned int seed );
+void sort_playlist( playlist_info_t *playlist );
 void empty_playlist( playlist_info_t *playlist );
 void add_indices_to_playlist( playlist_info_t *playlist );
 
diff --git a/apps/settings_menu.c b/apps/settings_menu.c
index 95fec0dd33..5c718869d9 100644
--- a/apps/settings_menu.c
+++ b/apps/settings_menu.c
@@ -78,9 +78,22 @@ void settings_menu(void)
         { "Scroll speed",    scroll_speed    },  
         { "While Playing",   wps_set },
     };
+    bool old_shuffle = global_settings.playlist_shuffle;
     
     m=menu_init( items, sizeof items / sizeof(struct menu_items) );
     menu_run(m);
     menu_exit(m);
     settings_save();
+
+    if (old_shuffle != global_settings.playlist_shuffle)
+    {
+        if (global_settings.playlist_shuffle)
+        {
+            randomise_playlist(&playlist, current_tick);
+        }
+        else
+        {
+            sort_playlist(&playlist);
+        }
+    }
 }
-- 
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