class MidiMonitor(object):
def __init__(self, connect=None, start=True, app=None):
self.events = EmitterGroup(source=self,
start=Event,
stop=Event,
midiIn=Event)
if app is None:
self._app = use_app(call_reuse=False)
elif isinstance(app, Application):
self._app = app
elif isinstance(app, string_types):
self._app = Application(app)
else:
raise ValueError('Invalid value for app %r' % app)
self._running = False
if connect is not None:
self.connect(connect)
if start:
self.start()
@property
def running(self):
return self._running
def start(self):
if self.running:
return # don't do anything if already running
port = sys.argv[1] if len(sys.argv) > 1 else None
try:
self.midiin = rtmidi.MidiIn(name="game")
available_ports = self.midiin.get_ports()
if available_ports:
self.midiin.open_port(0)
else:
self.midiin.open_virtual_port("My virtual output")
except (EOFError, KeyboardInterrupt):
sys.exit()
self.midiInputHandler = MidiInputHandler(self, port)
self.midiin.set_callback(self.midiInputHandler)
self._running = True
self.events.start(type='midi_start')
print(self.midiin)
def stop(self):
self.events.stop(type='midi_stop')
def _midiIn(self, message):
if not self.running:
return
if message[0] == 144:
print(message)
self.events.midiIn(type='midi_in', message=message)
def connect(self, callback):
return self.events.midiIn.connect(callback)
def disconnect(self, callback=None):
return self.events.midiIn.disconnect(callback)
