Update headers when editing current/next track

Fixes #126

app/musicmuster.py

@@ -215,10 +215,8 @@ class Window(QMainWindow, Ui_MainWindow):
         self.btnFade.clicked.connect(self.fade)
         self.btnHidePlayed.clicked.connect(self.hide_played)
         self.btnStop.clicked.connect(self.stop)
-        self.hdrCurrentTrack.clicked.connect(
-            lambda: self.tabPlaylist.currentWidget().scroll_current_to_top())
-        self.hdrNextTrack.clicked.connect(
-            lambda: self.tabPlaylist.currentWidget().scroll_next_to_top())
+        self.hdrCurrentTrack.clicked.connect(self.show_current)
+        self.hdrNextTrack.clicked.connect(self.show_next)
         self.tabPlaylist.currentChanged.connect(
             lambda: self.tabPlaylist.currentWidget().tab_visible())
         self.tabPlaylist.tabCloseRequested.connect(self.close_tab)
@@ -772,6 +770,20 @@ class Window(QMainWindow, Ui_MainWindow):
         idx = self.tabPlaylist.indexOf(widget)
         self.tabPlaylist.tabBar().setTabTextColor(idx, colour)
 
+    def show_current(self) -> None:
+        """Scroll to show current track"""
+
+        if self.current_track_playlist_tab != self.visible_playlist_tab:
+            self.tabPlaylist.setCurrentWidget(self.current_track_playlist_tab)
+        self.tabPlaylist.currentWidget().scroll_current_to_top()
+
+    def show_next(self) -> None:
+        """Scroll to show next track"""
+
+        if self.next_track_playlist_tab != self.visible_playlist_tab:
+            self.tabPlaylist.setCurrentWidget(self.next_track_playlist_tab)
+        self.tabPlaylist.currentWidget().scroll_next_to_top()
+
     def stop(self) -> None:
         """Stop playing immediately"""
 
@@ -937,6 +949,18 @@ class Window(QMainWindow, Ui_MainWindow):
             if self.playing:
                 self.stop_playing()
 
+    def update_current_track(self, track):
+        """Update current track with passed details"""
+
+        self.current_track = TrackData(track)
+        self.update_headers()
+
+    def update_next_track(self, track):
+        """Update next track with passed details"""
+
+        self.next_track = TrackData(track)
+        self.update_headers()
+
     def update_headers(self) -> None:
         """
         Update last / current / next track headers

app/playlists.py

@@ -432,10 +432,17 @@ class PlaylistTab(QTableWidget):
                 if track_id:
                     track = session.get(Tracks, track_id)
                     if track:
+                        update_current = row == self._get_current_track_row()
+                        update_next = row == self._get_next_track_row()
                         if self.edit_cell_type == "title":
                             track.title = new_text
                         elif self.edit_cell_type == "artist":
                             track.artist = new_text
+                        if update_current:
+                            self.musicmuster.update_current_track(track)
+                        elif update_next:
+                            self.musicmuster.update_next_track(track)
+
                         # Headers will be incorrect if the edited track is
                         # previous / current / next TODO: this will require
                         # the stored data in musicmuster to be updated,