From a72f95c2ba57c5f4764f20044d6ac1ca4be79e4e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Stenberg?= <bjorn@haxx.se>
Date: Wed, 26 Jun 2002 23:25:03 +0000
Subject: [PATCH] Added next/previous track

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1211 a1c6a512-1295-4272-9138-f99709370657
---
 apps/playlist.c |  8 ++++----
 apps/playlist.h |  2 +-
 apps/tree.c     | 49 +++++++++++++++++++++++++++++++------------------
 apps/wps.c      | 24 +++++++++++++++++-------
 firmware/mpeg.c |  6 +-----
 5 files changed, 54 insertions(+), 35 deletions(-)

diff --git a/apps/playlist.c b/apps/playlist.c
index 5d7ef2fd6c..bd5c2b2053 100644
--- a/apps/playlist.c
+++ b/apps/playlist.c
@@ -35,15 +35,15 @@ bool playlist_shuffle = false;
 
 char now_playing[256];
 
-char* playlist_next(int type)
+char* playlist_next(int steps)
 {
-    int seek = playlist.indices[playlist.index];
+    int seek;
     int max;
     int fd;
     int i;
-    (void)type; /* prevent compiler warning until this is gets used */
 
-    playlist.index = (playlist.index+1) % playlist.amount;
+    playlist.index = (playlist.index+steps) % playlist.amount;
+    seek = playlist.indices[playlist.index];
 
     fd = open(playlist.filename, O_RDONLY);
     if(-1 != fd) {
diff --git a/apps/playlist.h b/apps/playlist.h
index 2517d2b877..273a612da0 100644
--- a/apps/playlist.h
+++ b/apps/playlist.h
@@ -38,7 +38,7 @@ extern playlist_info_t playlist;
 extern bool playlist_shuffle;
 
 void play_list(char *dir, char *file);
-char* playlist_next(int type);
+char* playlist_next(int steps);
 void randomise_playlist( playlist_info_t *playlist, unsigned int seed );
 void empty_playlist( playlist_info_t *playlist );
 void add_indices_to_playlist( playlist_info_t *playlist );
diff --git a/apps/tree.c b/apps/tree.c
index a071ce73d6..4b16bac68b 100644
--- a/apps/tree.c
+++ b/apps/tree.c
@@ -190,7 +190,7 @@ static int playing = 0;
 static char currdir[255];
 
 /* QUICK HACK! this should be handled by the playlist code later */
-char* peek_next_track(int type)
+char* peek_next_track(int steps)
 {
     static char buf[256];
 
@@ -204,26 +204,39 @@ char* peek_next_track(int type)
             /* play-full-dir mode */
       
             /* get next track in dir */
-            while (dircursor + start + 1 < numentries ) {
-                if(dircursor+1 < TREE_MAX_ON_SCREEN)
-                    dircursor++;
-                else
-                    start++;
-                if ( dircacheptr[dircursor+start]->file &&
-                     dircacheptr[dircursor+start]->name[strlen(dircacheptr[dircursor+start]->name)-1] == '3') {
-                    snprintf(buf,sizeof buf,"%s/%s",
-                             currdir, dircacheptr[dircursor+start]->name );
-                    lcd_clear_display();
-                    lcd_puts(0,0,"<Playing>");
-                    lcd_puts(0,1,"<all files>");
-                    return buf;
+            if ( steps == 1 ) {
+                while (dircursor + start + 1 < numentries ) {
+                    if(dircursor+1 < TREE_MAX_ON_SCREEN)
+                        dircursor++;
+                    else
+                        start++;
+                    if ( dircacheptr[dircursor+start]->file &&
+                         dircacheptr[dircursor+start]->name[strlen(dircacheptr[dircursor+start]->name)-1] == '3') {
+                        snprintf(buf,sizeof buf,"%s/%s",
+                                 currdir, dircacheptr[dircursor+start]->name );
+                        return buf;
+                    }
+                }
+            }
+            else {
+                while (dircursor + start > 0) {
+                    if (dircursor > 0)
+                        dircursor--;
+                    else
+                        start--;
+                    if ( dircacheptr[dircursor+start]->file &&
+                         dircacheptr[dircursor+start]->name[strlen(dircacheptr[dircursor+start]->name)-1] == '3') {
+                        snprintf(buf, sizeof(buf), "%s/%s",
+                                 currdir, dircacheptr[dircursor+start]->name);
+                        return buf;
+                    }
                 }
             }
             break;
       
         case 2:
             /* playlist mode */
-            return playlist_next(type);
+            return playlist_next(steps);
     }
 
     return NULL;
@@ -313,8 +326,9 @@ bool dirbrowse(char *root)
                     else {
 
                         playing = 1;
-                        playtune(buf);
-                        playing = 0;
+                        mpeg_play(buf);
+                        lcd_stop_scroll();
+                        wps_show();
                     }
                 }
                 restore = true;
@@ -367,7 +381,6 @@ bool dirbrowse(char *root)
 
         if ( restore ) {
             /* restore display */
-            /* TODO: this is just a copy from BUTTON_STOP, fix it */
             numentries = showdir(currdir, start);
             put_cursorxy(0, CURSOR_Y + LINE_Y+dircursor, true);
         }
diff --git a/apps/wps.c b/apps/wps.c
index 75b68d0d8d..838f8f786a 100644
--- a/apps/wps.c
+++ b/apps/wps.c
@@ -146,25 +146,35 @@ void wps_show(void)
 
 #ifdef HAVE_RECORDER_KEYPAD
                 case BUTTON_UP:
-#else
-                case BUTTON_RIGHT:
-#endif
                     global_settings.volume += 2;
                     if(global_settings.volume > 100)
                         global_settings.volume = 100;
                     mpeg_volume(global_settings.volume);
                     break;
 
-#ifdef HAVE_RECORDER_KEYPAD                
                 case BUTTON_DOWN:
-#else
-                case BUTTON_LEFT:
-#endif
                     global_settings.volume -= 2;
                     if(global_settings.volume < 0)
                         global_settings.volume = 0;
                     mpeg_volume(global_settings.volume);
                     break;
+#endif
+
+                case BUTTON_LEFT:
+                    mpeg_prev();
+                    break;
+
+                case BUTTON_RIGHT:
+                    mpeg_next();
+                    break;
+
+#ifdef HAVE_RECORDER_KEYPAD                
+                case BUTTON_OFF:
+#else
+                case BUTTON_DOWN:
+#endif
+                    mpeg_stop();
+                    break;
             }
             sleep(HZ/20);
         }
diff --git a/firmware/mpeg.c b/firmware/mpeg.c
index b1cbf33e7e..31e50caed3 100644
--- a/firmware/mpeg.c
+++ b/firmware/mpeg.c
@@ -319,11 +319,7 @@ static int new_file(bool next_track)
 {
     char *trackname;
 
-    if (next_track)
-        trackname = peek_next_track(0);
-    else
-        trackname = peek_prev_track(0);
-
+    trackname = peek_next_track( next_track ? 1 : -1 );
     if ( !trackname )
         return -1;