Fix select all (un)played tracks

app/playlists.py

@@ -329,6 +329,8 @@ class PlaylistTab(QTableWidget):
 
         # Put an item in COL_USERDATA for later
         item: QTableWidgetItem = QTableWidgetItem()
+        # Add row metadata
+        item.setData(self.ROW_METADATA, 0)
         self.setItem(row, self.COL_USERDATA, item)
 
         # Add track details to columns
@@ -1082,11 +1084,19 @@ class PlaylistTab(QTableWidget):
         note = Notes.get_by_id(session, note_id)
         return note
 
-    def _get_played_track_rows(self) -> Optional[List[int]]:
+    def _get_played_track_rows(self) -> List[int]:
         """Return rows marked as played, or None"""
 
         return self._meta_search(RowMeta.PLAYED, one=False)
 
+    def _get_unplayed_track_rows(self) -> Optional[List[int]]:
+        """Return rows marked as unplayed, or None"""
+
+        unplayed_rows: Set[int] = set(self._meta_notset(RowMeta.PLAYED))
+        notes_rows: Set[int] = set(self._get_notes_rows())
+
+        return list(unplayed_rows - notes_rows)
+
     def _get_row_start_time(self, row: int) -> Optional[datetime]:
         try:
             if self.item(row, self.COL_START_TIME):
@@ -1232,7 +1242,8 @@ class PlaylistTab(QTableWidget):
 
         matches = []
         for row in range(self.rowCount()):
-            if self._meta_get(row):
+            row_meta = self._meta_get(row)
+            if row_meta is not None:
                 if not self._meta_get(row) & (1 << metadata):
                     matches.append(row)
 
@@ -1355,15 +1366,15 @@ class PlaylistTab(QTableWidget):
 
         # Need to allow multiple rows to be selected
         self.setSelectionMode(QtWidgets.QAbstractItemView.MultiSelection)
-        notes_rows: List[int] = self._get_notes_rows()
         self.clearSelection()
 
-        played_rows: List[int] = self._get_played_track_rows()
-        for row in range(self.rowCount()):
-            if row in notes_rows:
-                continue
-            if row in played_rows == played:
-                self.selectRow(row)
+        if played:
+            rows = self. _get_played_track_rows()
+        else:
+            rows = self._get_unplayed_track_rows()
+
+        for row in rows:
+            self.selectRow(row)
 
         # Reset extended selection
         self.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)