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from TrackPlayerBase import TrackPlayerBase
from Framework.Generation.Generator import Generator
from Framework.Generation.Generator import GenerationParameters
from Framework.CSound.CSoundConstants import CSoundConstants
#------------------------------------------------------------------------------
# A Track is a collection of events.
# TrackPlayer allows the user to create, generate, manipulate and play Tracks
#------------------------------------------------------------------------------
class TrackPlayer( TrackPlayerBase ):
#-----------------------------------
# initialization
#-----------------------------------
def __init__( self, getTempoCallback, getBeatsPerPageCallback, playTickCallback, volumeFunctions, trackIDs ):
TrackPlayerBase.__init__( self, getTempoCallback, getBeatsPerPageCallback, playTickCallback, volumeFunctions, trackIDs )
self.trackDictionary = {} #maps trackIDs to lists of events
#-----------------------------------
# add/remove/update methods
#-----------------------------------
def addTrack( self, trackID, instrument, events = [] ):
if ( len( events ) != 0 ) and ( trackID not in self.mutedTrackIDs ):
self.addMultiple( events )
self.trackDictionary[ trackID ] = events
self.trackInstruments[ trackID ] = instrument
def addToTrack( self, trackID, event ):
self.add( event )
self.trackDictionary[ trackID ].add( event )
def addMultipleToTrack( self, trackID, events ):
self.addMultiple( events )
for event in events:
self.trackDictionary[ trackID ].add( event )
def removeTrack( self, trackID ):
if self.trackDictionary.has_key( trackID ):
self.removeMultiple( self.trackDictionary[ trackID ] )
del self.trackDictionary[ trackID ]
def removeFromTrack( self, trackID, event ):
self.remove( event )
self.trackDictionary[ trackID ].remove( event )
def removeMultipleFromTrack( self, trackID, events ):
self.removeMultiple( events )
for event in events:
self.trackDictionary[ trackID ].remove( event )
def updateTrack( self, trackID, events = [] ):
if self.trackDictionary.has_key( trackID ):
self.removeTrack( trackID )
# TODO: this stuff is temporary and should be done in Generator
# i.e. generated notes should already have their instrument set to
# self.trackInstruments[ trackID ]
if self.trackInstruments.has_key( trackID ):
instrument = self.trackInstruments[ trackID ]
else:
instrument = CSoundConstants.CELLO
for event in events:
event.instrument = instrument
self.addTrack( trackID, instrument, events )
#-----------------------------------
# misc methods
#-----------------------------------
def getEvents( self, trackID ):
return self.trackDictionary[ trackID ]
def update( self ):
self.clear()
for trackID in self.getActiveTrackIDs():
self.addMultiple( self.trackDictionary[ trackID ] )
def generate( self, generationParameters = GenerationParameters() ):
if len( self.selectedTrackIDs ) == 0:
trackIDs = self.trackIDs
else:
trackIDs = self.selectedTrackIDs
for trackID in trackIDs:
self.updateTrack( trackID, self.generator.generate( generationParameters, trackID, self.trackDictionary ) )
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