Autoscroll when the current song is changed, rather than any data. See issue #124

src/playlistview.cpp

@@ -77,9 +77,15 @@ void PlaylistView::setItemDelegates(Library* library) {
   setItemDelegateForColumn(Playlist::Column_DateModified, new DateItemDelegate(this));
 }
 
-void PlaylistView::setModel(QAbstractItemModel *model) {
-  QTreeView::setModel(model);
+void PlaylistView::setModel(QAbstractItemModel *m) {
+  if (model())
+    disconnect(model(), 0, this, 0);
+
+  QTreeView::setModel(m);
   LoadGeometry();
+
+  Playlist* playlist = qobject_cast<Playlist*>(m);
+  connect(playlist, SIGNAL(CurrentSongChanged(Song)), SLOT(MaybeAutoscroll()));
 }
 
 void PlaylistView::LoadGeometry() {
@@ -348,12 +354,6 @@ void PlaylistView::InhibitAutoscrollTimeout() {
   inhibit_autoscroll_ = false;
 }
 
-void PlaylistView::dataChanged(const QModelIndex& topleft,
-                               const QModelIndex& bottomright) {
-  QTreeView::dataChanged(topleft, bottomright);
-  MaybeAutoscroll();
-}
-
 void PlaylistView::MaybeAutoscroll() {
   Playlist* playlist = qobject_cast<Playlist*>(model());
   Q_ASSERT(playlist);

src/playlistview.h

@@ -56,19 +56,16 @@ class PlaylistView : public QTreeView {
   void mousePressEvent(QMouseEvent *event);
   void scrollContentsBy(int dx, int dy);
 
- protected slots:
-  void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
-
  private slots:
   void LoadGeometry();
   void SaveGeometry();
   void GlowIntensityChanged();
   void InhibitAutoscrollTimeout();
+  void MaybeAutoscroll();
 
  private:
   void ReloadBarPixmaps();
   QList<QPixmap> LoadBarPixmap(const QString& filename);
-  void MaybeAutoscroll();
 
  private:
   static const char* kSettingsGroup;