you can play your song now :D

src/ui/widgets/timeline.py

@@ -7,6 +7,8 @@ from ui.widgets.chunk_types.audio import AudioChunk, Chunk
 from ui.widgets.play_head import PlayHead
 from project import ChunkType
 
+from song_player import SongPlayer
+
 
 class TimelineRow(Horizontal):
     DEFAULT_CSS = """
@@ -64,6 +66,7 @@ class Timeline(Vertical):
         super().__init__(id="timeline")
         
         self.calc_bar_offset()
+        self.song_player = SongPlayer(self, self.app.project)
         
     def calc_bar_offset(self):
         self.bar_offset = self.app.project.bpm / 8 * (0.03333333333 / self.app.zoom_level)
@@ -87,6 +90,19 @@ class Timeline(Vertical):
             self.calc_bar_offset()
             self.handle_zoom()
             
+    @on(events.MouseDown)
+    async def mouse_down(self, event: events.MouseDown):
+        if event.button != 2: return
+        
+        # get bar number
+        bar_number = event.x / self.bar_offset
+        
+        # convert bar number to seconds
+        seconds = bar_number / self.app.project.seconds_per_bar
+        
+        # seek to number of seconds
+        self.song_player.seek(seconds)
+            
     def handle_zoom(self):
         for chunk in self.query(Chunk):
             chunk.calculate_size()
@@ -100,6 +116,9 @@ class Timeline(Vertical):
                     bar_line.display = False
                 else:
                     bar_line.display = True
+        
+        if self.song_player.paused and self.song_player.project:
+            self.run_worker(self.song_player.update_visual_playhead())
     
     def compose(self) -> ComposeResult:
         
@@ -116,7 +135,7 @@ class Timeline(Vertical):
                         elif chunk.chunk_type == ChunkType.AUDIO:
                             yield AudioChunk(chunk.audio_data, chunk.sample_rate, chunk.name, chunk.position)
 
-            for i in range(1, self.app.project.song_length):
+            for i in range(1, self.app.project.song_length+1):
                 bar = None
                 if i % 4 == 0:
                     bar = Rule.vertical(classes="bar-line", line_style="double")