def __init__(self, util):
""" Initializer
:param util: utility class
"""
self.util = util
self.update_period = 1
self.meter = None
self.USE_VOLUME = False
parser = ConfigFileParser(util)
self.meter_config = parser.meter_config
self.meter_names = self.meter_config[METER_NAMES]
self.random_meter_interval = self.meter_config[RANDOM_METER_INTERVAL]
# no VU Meter support for Windows and mplayer at the moment
if not util.config[LINUX_PLATFORM] or "mplayer" in util.config[AUDIO][SERVER_COMMAND]:
self.meter_config[DATA_SOURCE][TYPE] = SOURCE_NOISE
self.data_source = DataSource(self.meter_config)
self.random_meter = False
if self.meter_config[METER] == "random":
self.random_meter = True
self.random_meter_names = copy.copy(self.meter_names)
self.meter = None
self.current_volume = 100.0
self.seconds = 0
class Vumeter(Screensaver):
""" VU Meter plug-in. """
def __init__(self, util):
""" Initializer
:param util: utility class
"""
self.util = util
self.update_period = 1
self.meter = None
self.USE_VOLUME = False
parser = ConfigFileParser(util)
self.meter_config = parser.meter_config
self.meter_names = self.meter_config[METER_NAMES]
self.random_meter_interval = self.meter_config[RANDOM_METER_INTERVAL]
# no VU Meter support for Windows and mplayer at the moment
if not util.config[LINUX_PLATFORM] or "mplayer" in util.config[AUDIO][SERVER_COMMAND]:
self.meter_config[DATA_SOURCE][TYPE] = SOURCE_NOISE
self.data_source = DataSource(self.meter_config)
self.random_meter = False
if self.meter_config[METER] == "random":
self.random_meter = True
self.random_meter_names = copy.copy(self.meter_names)
self.meter = None
self.current_volume = 100.0
self.seconds = 0
def get_meter(self):
""" Creates meter using meter factory. """
if self.meter and not self.random_meter:
return self.meter
if self.random_meter:
if len(self.random_meter_names) == 0:
self.random_meter_names = copy.copy(self.meter_names)
i = randrange(0, len(self.random_meter_names))
self.meter_config[METER] = self.random_meter_names[i]
del self.random_meter_names[i]
factory = MeterFactory(self.util, self.meter_config, self.data_source)
return factory.create_meter()
def set_volume(self, volume):
""" Set volume level
:param volume: new volume level
"""
if self.USE_VOLUME:
self.current_volume = volume
def start(self):
""" Start data source and meter animation. """
self.data_source.start_data_source()
self.meter = self.get_meter()
self.meter.set_volume(self.current_volume)
self.meter.start()
def stop(self):
""" Stop data source and meter animation. """
self.data_source.stop_data_source()
self.meter.stop()
def refresh(self):
""" Refresh meter. Used to update random meter. """
if self.random_meter and self.seconds == self.random_meter_interval:
self.seconds = 0
self.stop()
time.sleep(0.2) # let threads stop
self.start()
self.seconds += 1
pass
