playlist: Add a Year column to the PlaylistView

Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>

playlist/column.py

@@ -63,6 +63,11 @@ class SubtitleFactory(LabelFactory):
     def get_track_text(self, track): return track.disc.subtitle
 
 
+class YearFactory(LabelFactory):
+    def __init__(self): LabelFactory.__init__(self, xalign=1)
+    def get_track_text(self, track): return str(track.year.year)
+
+
 class Column(Gtk.ColumnViewColumn):
     def __init__(self, title, factory, width=-1, **kwargs):
         Gtk.ColumnViewColumn.__init__(self, title=title, **kwargs)
@@ -83,6 +88,7 @@ def LengthColumn(): return Column("Length", LengthFactory())
 def ArtistColumn(): return Column("Artist", ArtistFactory(), width=150, expand=True)
 def AlbumColumn(): return Column("Album", AlbumFactory(), width=150, expand=True)
 def SubtitleColumn(): return Column("Subtitle", SubtitleFactory(), width=150, expand=True)
+def YearColumn(): return Column("Year", YearFactory())
 
 
 class OldColumn(Gtk.ColumnViewColumn):

playlist/test_column.py

@@ -82,6 +82,12 @@ class TestColumnFactories(unittest.TestCase):
         self.track.disc._subtitle = "Test Subtitle"
         self.assertEqual(factory.get_track_text(self.track), "Test Subtitle")
 
+    def test_year(self):
+        factory = column.YearFactory()
+        self.assertIsInstance(factory, column.LabelFactory)
+        self.assertEqual(factory.get_track_text(self.track), "2021")
+        self.assertEqual(factory.xalign, 1)
+
 
 class TestColumn(unittest.TestCase):
     def test_init(self):
@@ -154,6 +160,12 @@ class TestColumns(unittest.TestCase):
         self.assertEqual(col.get_fixed_width(), 150)
         self.assertTrue(col.get_expand())
 
+    def test_year(self):
+        col = column.YearColumn()
+        self.assertIsInstance(col, column.Column)
+        self.assertIsInstance(col.get_factory(), column.YearFactory)
+        self.assertEqual(col.get_title(), "Year")
+
 
 class TestPlaylistColumn(unittest.TestCase):
     def tearDown(self):

playlist/view.py

@@ -18,6 +18,7 @@ class PlaylistView(Gtk.ColumnView):
         self.append_column(column.ArtistColumn())
         self.append_column(column.AlbumColumn())
         self.append_column(column.SubtitleColumn())
+        self.append_column(column.YearColumn())
 
     def get_filter_model(self): return self.get_model().get_filter_model()
     def get_playlist(self): return self.get_model().get_playlist()