def __init__(self):
super(Piblaster, self).__init__()
# debug
cprint("START!")
self.music_db_version = -1
self.music_db_size = 0 # number of chunks to be transmitted
self.music_db_chunks = {}
self.music_db = music_db.MusicDB()
self.blueberry = BlueberryClient()
self.cmd_recv_list = {'ACK': None,
'MUSIC_DB_CHUNK': self.recv_music_db_chunk, 'DB_SIZE': self.recv_music_db_size,
'DB_PACKET_COUNT': None, 'MUSIC_DB_VERSION': self.recv_music_db_version,
'PLAYLIST_CHANGED': None, 'CURRENT_SONG': None, 'STATE': None,
'MUSIC_DB_SEND_COMPLETE': self.music_db_send_complete}
class Piblaster(Widget):
cmd_send_list = ['MUSIC_DB_VERSION', 'MUSIC_DB',
'PLAYLIST', 'CURRENT_SONG', 'STATE',
'APPEND_SONG', 'APPEND_ALBUM', 'APPEND_ARTIST',
'PLAY_SONG', 'PLAY_ALBUM', 'PLAY_ARTIST',
'PREPEND_SONG', 'PREPEND_ALBUM', 'PREPEND_ARTIST']
connect_btn = ObjectProperty()
multi_btn = ObjectProperty()
music_list = ObjectProperty()
def __init__(self):
super(Piblaster, self).__init__()
# debug
cprint("START!")
self.music_db_version = -1
self.music_db_size = 0 # number of chunks to be transmitted
self.music_db_chunks = {}
self.music_db = music_db.MusicDB()
self.blueberry = BlueberryClient()
self.cmd_recv_list = {'ACK': None,
'MUSIC_DB_CHUNK': self.recv_music_db_chunk, 'DB_SIZE': self.recv_music_db_size,
'DB_PACKET_COUNT': None, 'MUSIC_DB_VERSION': self.recv_music_db_version,
'PLAYLIST_CHANGED': None, 'CURRENT_SONG': None, 'STATE': None,
'MUSIC_DB_SEND_COMPLETE': self.music_db_send_complete}
def connect(self):
if self.blueberry.get_socket_stream('piblaster3000-0'):
cprint("Successfully connected!")
self.receive(daemon=True)
self.connect_btn.update_image('icons/connected.png')
self.ask_music_db_version()
def ask_music_db_version(self):
self.send('MUSIC_DB_VERSION')
def recv_music_db_version(self, v):
cprint('Version: {}'.format(v))
if v != self.music_db_version:
self.music_db_version = v
self.music_db_chunks = {}
self.send('MUSIC_DB')
def recv_music_db_size(self, s):
cprint('recv_music_db_size: {}'.format(s))
self.music_db_size = int(s)
def recv_music_db_chunk(self, s):
n, c = s.split(',', 1) # n: chunk number, c: chunk
self.music_db_chunks[n] = c
def music_db_send_complete(self, s):
cprint('db received')
if len(self.music_db_chunks) == self.music_db_size:
music_db_json = ""
for i in range(len(self.music_db_chunks)):
music_db_json += self.music_db_chunks[str(i)]
print music_db_json
self.music_db.load(music_db_json)
l = []
cprint('artists')
print self.music_db.artist_db
for k in self.music_db.artist_db.keys():
for a in self.music_db.artist_db[k]:
l.append("{} - {}".format(k, a))
# l = [["{} - {}".format(k, a) for a in self.music_db.artist_db[k]]
# for k in self.music_db.artist_db.keys()]
print l
self.music_list.update(l)
else:
missing = list(set(range(self.music_db_size)) - set(self.music_db_chunks.keys()))
self.send('MUSIC_DB', json.dumps(missing))
def send(self, cmd, payload=""):
"""
Sends cmd and payload via bluetooth.
"""
if self.blueberry.connected and cmd in self.cmd_send_list:
self.blueberry.send("{},{}".format(cmd, payload))
return True
else:
return False
def receive(self, daemon=False):
"""
Checks bt queue for new messages.
Packets are split into command and payload.
Corresponding function is called with payload as parameter.
"""
if daemon:
cprint('Start receive daemon')
t = threading.Thread(target=self.receive)
t.daemon = True
t.start()
else:
while True:
if not self.blueberry.messages.empty():
# received a new messages
m = self.blueberry.messages.get()
cmd, payload = m.split(',', 1)
if cmd in self.cmd_recv_list:
self.cmd_recv_list[cmd](payload)
def play(self):
s = self.music_list.selected()
self.send('PLAY_ALBUM', s.text[:]) # [2:-2] to remove [' and ']