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import pygtk
pygtk.require( '2.0' )
import gtk
import gobject
import Config
from Util.CSoundNote import CSoundNote
from Util.CSoundClient import CSoundClient
class RythmPlayer:
def __init__( self, client, recordButtonState ):
self.csnd = client
self.notesList = []
self.sequencer = []
self.pitchs = []
self.tempo = 120
self.currentTick = 0
self.sequencerPlayback = 0
self.startLooking = 0
self.recordState = 0
self.recordButtonState = recordButtonState
self.playbackTimeout = None
self.beat = 4
self.playState = 0
def getCurrentTick(self):
return self.currentTick
def setTempo( self, tempo ):
self.tempo = tempo
if self.playbackTimeout != None:
gobject.source_remove(self.playbackTimeout)
self.playState = 0
self.startPlayback()
def handleRecordButton( self, widget, data=None ):
if not self.startLooking:
if widget.get_active() == True:
self.beats = [i*12 for i in range(self.beat)]
self.upBeats = [i+6 for i in self.beats]
self.startLooking = 1
def recording( self, note ):
if self.recordState:
self.pitchs.append( note.pitch )
note.onset = self.currentTick
self.sequencer.append( note )
def adjustDuration( self, pitch, onset ):
if pitch in self.pitchs:
offset = self.currentTick
for note in self.sequencer:
if note.pitch == pitch and note.onset == onset:
if offset > note.onset:
note.duration = offset - note.onset
else:
note.duration = (offset+(self.beat*12)) - note.onset
self.pitchs.remove( pitch )
def playing( self ):
return self.playbackTimeout != None
def startPlayback( self ):
if not self.playState:
self.playbackTimeout = gobject.timeout_add( int(60000/self.tempo/12) , self.handleClock )
self.handleClock()
self.playState = 1
def stopPlayback( self ):
if self.playbackTimeout != None:
gobject.source_remove( self.playbackTimeout )
self.playbackTimeout = None
self.playState = 0
def handleClock( self ) :
rval = ""
for stream in self.notesList:
for note in stream:
if note.onset == self.currentTick:
note.play()
if self.sequencer and self.sequencerPlayback:
for note in self.sequencer:
if note.onset == self.currentTick:
note.play()
if self.startLooking:
self.sequencerPlayback = 0
if self.currentTick in self.beats:
self.recordButtonState(True)
if self.currentTick in self.upBeats:
self.recordButtonState(False)
if self.currentTick == 0:
self.sequencer = []
self.pitchs = []
self.recordState = 1
self.startLooking = 0
self.currentTick = self.currentTick + 1
if self.currentTick >= (Config.TICKS_PER_BEAT * self.beat):
if self.recordState:
self.recordState = 0
self.sequencerPlayback = 1
self.recordButtonState(False)
self.currentTick = 0
return True
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