Got it working, but it's not better than before...

wobuzz/command_line.py

@@ -20,6 +20,7 @@ def main():
     from .main import Wobuzz
 
     app = Wobuzz()
+    app.post_init()
 
     if arguments.playlist:
         playlist = Playlist(app, "Temporary Playlist")
@@ -49,7 +50,7 @@ def main():
             app.library.playlists.remove(app.library.temporary_playlist)
         app.library.temporary_playlist = playlist
 
-    app.post_init()
+    app.library.load_playlist_views()
     sys.exit(app.qt_app.exec())
 
 

wobuzz/gui.py

@@ -50,7 +50,10 @@ class GUI:
 
     def on_track_change(self, previous_track, track):
         self.track_control.on_track_change(previous_track, track)
-        self.app.player.current_playlist.view.on_track_change(previous_track, track)
+
+        for dock_id in self.app.player.current_playlist.views:
+            view = self.app.player.current_playlist.views[dock_id]
+            view.on_track_change(previous_track, track)
 
     def on_background_job_start(self, job: str):
         self.window.process_dock.job_started_signal.emit(job)

wobuzz/library/library.py

@@ -43,13 +43,9 @@ class Library:
                 playlist = Playlist(self.app, file_name.replace("_", " ").split(".")[0])
                 self.playlists.append(playlist)
 
-                playlist.load_from_m3u(path)
-
                 if playlist.title == "Temporary Playlist":
                     self.temporary_playlist = playlist
 
-        self.load_playlist_views()
-
     def load_playlist_views(self):
         for library_dock in self.library_docks:
             playlist_tabs: QTabWidget = library_dock.library_widget.playlist_tabs
@@ -57,7 +53,7 @@ class Library:
             playlist_tabs.playlists = {}
 
             for playlist in self.playlists:
-                playlist_view = PlaylistView(playlist)
+                playlist_view = PlaylistView(playlist, library_dock)
                 playlist_tabs.addTab(playlist_view, playlist.title)
 
     def on_exit(self, event):
@@ -74,6 +70,6 @@ class Library:
         for library_dock in self.library_docks:
             playlist_tabs: QTabWidget = library_dock.library_widget.playlist_tabs
 
-            playlist_view = PlaylistView(playlist)
+            playlist_view = PlaylistView(playlist, library_dock)
             playlist_tabs.addTab(playlist_view, playlist.title)
 

wobuzz/main.py

@@ -36,4 +36,6 @@ class Wobuzz:
 if __name__ == "__main__":
     wobuzz = Wobuzz()
     wobuzz.post_init()
+    wobuzz.library.load_playlist_views()
+
     sys.exit(wobuzz.qt_app.exec())

wobuzz/player/player.py

@@ -1,5 +1,6 @@
 #!/usr/bin/python3
 
+import time
 import threading
 import pygame.mixer
 import pygame.event
@@ -174,6 +175,15 @@ class Player:
     def start_playlist(self, playlist):
         self.stop()
 
+        if not playlist.loaded:
+            playlist.load()
+
+        while not playlist.has_tracks() and not playlist.loaded:  # wait until first track is loaded
+            time.sleep(0.1)
+
+        if not playlist.has_tracks():
+            return
+
         self.current_sound, self.current_sound_duration = playlist.set_track(0)  # first track
         self.current_playlist = playlist
 

wobuzz/player/playlist.py

@@ -1,6 +1,7 @@
 #!/usr/bin/python3
 
 import os
+import threading
 from PyQt6.QtCore import Qt
 from .track import Track
 
@@ -18,7 +19,8 @@ class Playlist:
         self.tracks: list[Track] = []
         self.current_track_index = 0
         self.current_track: Track | None = None
-        self.view = None
+        self.views = {}  # dict of id(LibraryDock): PlaylistView
+        self.loaded = False
 
         self.path = os.path.expanduser(
             f"{app.settings.library_path}/playlists/{self.title.replace(" ", "_")}.wbz.m3u"
@@ -41,9 +43,13 @@ class Playlist:
 
             i += 1
 
-        # set current track to the first track if there is no currently playing track
-        if self.current_track is None and self.has_tracks():
-            self.current_track = self.tracks[0]
+        self.save()
+
+        self.tracks = []
+
+    def load(self):
+        loading_thread = threading.Thread(target=self.load_from_m3u, args=(self.path,))
+        loading_thread.start()
 
     def load_from_m3u(self, path):
         file = open(path, "r")
@@ -64,14 +70,18 @@ class Playlist:
 
                 continue
 
-            self.tracks.append(Track(self.app, line, cache=i==0))  # first track is cached
+            self.append_track(Track(self.app, line, cache=i==0))  # first track is cached
 
             i += 1
 
+        print("kolupp")
+
         # set current track to the first track if there is no currently playing track
         if self.current_track is None and self.has_tracks():
             self.current_track = self.tracks[0]
 
+        self.loaded = True
+
     def load_from_wbz(self, path):
         pass
 
@@ -149,10 +159,14 @@ class Playlist:
         self.app.library.playlists.remove(self)
 
     def append_track(self, track):
+        for dock_id in self.views:
+            view = self.views[dock_id]
+            view.append_track(track)
+
         self.tracks.append(track)
 
-        if self.view:
-            self.view.append_track(track)
+        print(track.tags.title)
+
 
     def h_last_track(self):
         # get last track in history (only gets used in player.history)

wobuzz/ui/playlist.py

@@ -14,13 +14,15 @@ class PlaylistView(QTreeWidget):
     bold_font = QFont()
     bold_font.setBold(True)
 
-    def __init__(self, playlist, parent=None):
+    def __init__(self, playlist, dock, parent=None):
         super().__init__(parent)
 
         self.playlist = playlist
+        self.library_dock = dock
+
         self.app = playlist.app
 
-        playlist.view = self
+        playlist.views[id(dock)] = self
 
         self.setDragDropMode(QAbstractItemView.DragDropMode.InternalMove)
         self.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)
@@ -39,7 +41,7 @@ class PlaylistView(QTreeWidget):
 
         self.setHeaderLabels(headers)
 
-        self.load_tracks()
+        #self.load_tracks()
 
         self.itemActivated.connect(self.on_track_activation)
 
@@ -141,6 +143,8 @@ class PlaylistView(QTreeWidget):
         if track:
             playlist_tabs.setTabIcon(index, self.playing_mark)  # mark this playlist
 
+            print(self.app.player.current_playlist.current_track_index)
+
             # mark the current track in this playlist
             item = self.topLevelItem(self.app.player.current_playlist.current_track_index)
             item.setIcon(0, self.playing_mark)