def init_track_data(self, track_name):
self.current_track_name = track_name
self.bands = Bands(track_name, track_manager.get_music_folder_path(), self.bands)
self.track_sound = SoundLoader.load(self.get_current_track_path())
self.sound_data = SoundData(self.get_current_track_path(), self.bands)
self.dance = Dance(self.sound_data, self.play_track, self.on_stop_dancing)
self.settings_group.reload(self.bands)
def __init__(self, **kwargs):
super(DancingWindow, self).__init__(**kwargs)
self.settings_group = None
self.playback_group = None
self.tracks_group = None
self.current_track_name = None
self.track_sound = None
self.sound_data = None
self.dance = None
self.bands = Bands()
self.playing_start = None
class DancingWindow(Screen):
# ToDo: move playing stuff into the Playback Window or into the new class
def __init__(self, **kwargs):
super(DancingWindow, self).__init__(**kwargs)
self.settings_group = None
self.playback_group = None
self.tracks_group = None
self.current_track_name = None
self.track_sound = None
self.sound_data = None
self.dance = None
self.bands = Bands()
self.playing_start = None
def on_show(self):
self.settings_group = self.ids['settings_group']
self.settings_group.on_low_changed = self.on_servo_settings_low_changed
self.settings_group.on_high_changed = self.on_servo_settings_high_changed
self.settings_group.on_scale_changed = self.on_servo_settings_scale_changed
self.settings_group.on_enabled_changed = self.on_servo_settings_enabled_changed
self.settings_group.reload(self.bands)
self.playback_group = self.ids['playback_group']
self.tracks_group = self.ids['tracks_group']
self.ids['track_list'].adapter.bind(on_selection_change=lambda value: self.on_selected_track_changed(value))
if len(track_manager.tracks) > 0:
self.init_track_data(track_manager.tracks[0])
self._update_playback_window()
Clock.schedule_interval(self.update_seek_bar, 0.05)
def on_hide(self):
Clock.unschedule(self.update_seek_bar)
def on_play_button_press(self, *largs):
if self.dance.start():
self.ids['button_play'].disabled = True
self.ids['button_stop'].disabled = False
self.settings_group.disabled = True
self.tracks_group.disabled = True
def on_stop_button_press(self, *largs):
self.dance.stop()
def on_stop_dancing(self):
self.stop_track()
self.ids['button_play'].disabled = False
self.ids['button_stop'].disabled = True
self.settings_group.disabled = False
self.tracks_group.disabled = False
def on_exit_button_press(self, *largs):
if not self.dance.is_stopped:
self.dance.stop()
if self.current_track_name:
self.bands.save()
self.parent.back_to_main_menu()
def on_servo_settings_low_changed(self, servo_id, text):
try:
self.bands[servo_id].low = float(text)
self.sound_data.update_signal(servo_id, self.bands[servo_id])
self._update_playback_window()
except:
self.settings_group.settings_rows[servo_id].low.text = str(self.bands[servo_id].low)
def on_servo_settings_high_changed(self, servo_id, text):
try:
self.bands[servo_id].high = float(text)
self.sound_data.update_signal(servo_id, self.bands[servo_id])
self._update_playback_window()
except:
self.settings_group.settings_rows[servo_id].high.text = str(self.bands[servo_id].high)
def on_servo_settings_scale_changed(self, servo_id, text):
try:
self.bands[servo_id].scale = float(text)
self.sound_data.update_signal(servo_id, self.bands[servo_id])
self._update_playback_window()
except:
self.settings_group.settings_rows[servo_id].scale.text = str(self.bands[servo_id].scale)
def on_servo_settings_enabled_changed(self, servo_id, value):
self.bands[servo_id].enabled = value
self.sound_data.update_signal(servo_id, self.bands[servo_id])
self._update_playback_window()
# ToDo: slow !!!
def init_track_data(self, track_name):
self.current_track_name = track_name
self.bands = Bands(track_name, track_manager.get_music_folder_path(), self.bands)
self.track_sound = SoundLoader.load(self.get_current_track_path())
self.sound_data = SoundData(self.get_current_track_path(), self.bands)
self.dance = Dance(self.sound_data, self.play_track, self.on_stop_dancing)
self.settings_group.reload(self.bands)
def on_selected_track_changed(self, list_adapter):
if list_adapter.selection and len(list_adapter.selection) > 0:
new_track = list_adapter.selection[0].text
if new_track == self.current_track_name:
return
self.bands.save()
self.init_track_data(new_track)
self._update_playback_window()
def get_current_track_path(self):
if self.current_track_name:
return os.path.join(track_manager.get_music_folder_path(), self.current_track_name)
return None
def play_track(self):
if self.track_sound:
self.track_sound.play()
self.playing_start = time()
def stop_track(self):
if self.track_sound:
self.track_sound.stop()
def update_seek_bar(self, *args):
seek_bar = self.playback_group.get_seek_bar()
if not self.track_sound or self.track_sound.state == 'stop':
seek_bar.value = 0
else:
elapsed_time = time() - self.playing_start
if elapsed_time > self.sound_data.sample_length:
self.track_sound.stop()
seek_bar.value = 0
else:
seek_bar.value = 100 * elapsed_time / self.sound_data.sample_length
def _update_playback_window(self):
self.playback_group.update_graph(self.sound_data)
