class LoadedSongsWindow(QMainWindow):
def __init__(self, loaded_songs_list):
"""Show and modify the list of all loaded songs
:type loaded_songs_list: LoadedSongs
:param loaded_songs_list: All currently loaded songs"""
super().__init__()
# Main layout
self.resize(900, 600)
self.setWindowTitle("Loaded Songs")
self._list_widget = OrderableListWidget()
self.setCentralWidget(self._list_widget)
# Setup parameters
self._song_list: LoadedSongs = loaded_songs_list
self._song_list.subscribe(LoadedSongs.ADDED, self._song_added)
self._song_list.subscribe(LoadedSongs.DELETED, self._song_deleted)
self._song_gui_list: dict[Song:QWidget] = {}
self._progress_bar = ProgressBar()
self._load_songs_dialog = LoadSongsDialog(self, self._progress_bar)
self._signal_song_added.connect(self._song_added_function)
# Setup gui
self._create_menu_bar()
self._status_bar.addPermanentWidget(self._progress_bar)
def _create_menu_bar(self):
"""Build the windows menu bar"""
menu_bar = self.menuBar()
# Load songs action
self._load_songs_action: QAction = QAction("&Load Files", self)
self._load_songs_action.triggered.connect(
self._do_load_songs_gui_action)
self._load_song_dir_action: QAction = QAction("Load &Directory", self)
self._load_song_dir_action.triggered.connect(
self._do_load_song_dir_gui_action)
# Song menu
songs_menu = menu_bar.addMenu("&Songs")
songs_menu.addActions([
self._load_songs_action,
self._load_song_dir_action,
])
# Status bar
self._status_bar = self.statusBar()
def _do_load_songs_gui_action(self):
"""Show a popup dialog to select songs to load"""
song_list = self._load_songs_dialog.get_songs_by_file()
thread: Thread = Thread(target=self._add_song_list, args=(song_list, ))
thread.start()
def _do_load_song_dir_gui_action(self):
"""Show a popup dialog to select songs to load"""
song_list = self._load_songs_dialog.get_songs_by_dir()
thread: Thread = Thread(target=self._add_song_list, args=(song_list, ))
thread.start()
def _add_song_list(self, song_list):
"""Add a list of new songs to the list
:type song_list: list[Song]
:param song_list: The list of songs to add"""
# Setup parameters
song: Song
total_song_count: int = len(song_list)
song_num: int = 0
prev_percentage_done: float = 0
self._progress_bar.startTimer()
self._progress_bar.set_progress.emit(prev_percentage_done)
# Load songs
for song in song_list:
self._song_list.add(song)
song_num += 1
percentage_done = floor(song_num / total_song_count * 100)
if prev_percentage_done != percentage_done:
prev_percentage_done = percentage_done
self._progress_bar.set_progress.emit(percentage_done)
# Take a break here and there to let the gui catch up
if 0 == song_num % 100:
sleep(1)
self._progress_bar.set_progress.emit(100)
def _song_added(self, song):
self._signal_song_added.emit(song)
_signal_song_added: Signal = Signal(Song)
def _song_added_function(self, song):
"""Add a new song was added to the list
:type song: Song
:param song: The song that was added"""
# Add to gui
list_item: LoadedSongListItem = LoadedSongListItem(song)
self._list_widget.add(list_item)
self._song_gui_list[song] = list_item
def _song_deleted(self, song):
"""A song was deleted from the list
:type song: Song
:param song: The song that was deleted"""
# Remove from gui
list_item: LoadedSongListItem = self._song_gui_list[song]
self._song_gui_list.pop(song)
self._list_widget.delete_item(list_item)
