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import pygtk
pygtk.require( '2.0' )
import gtk
from SubActivity import SubActivity
import Config
from Jam.Desktop import Desktop
import Jam.Picker as Picker
from Util.CSoundNote import CSoundNote
from Util.CSoundClient import new_csound_client
from Fillin import Fillin
from RythmGenerator import generator
from Util.NoteDB import Note
from math import sqrt
class JamMain(SubActivity):
def __init__(self, activity, set_mode):
SubActivity.__init__(self, set_mode)
self.activity = activity
#-- initial settings ----------------------------------
self.tempo = Config.PLAYER_TEMPO
self.volume = 50
self.reverb = 0
self.csnd = new_csound_client()
for i in range(1,9):
self.csnd.setTrackVolume( 100, i )
self.csnd.setMasterVolume( self.volume )
self.csnd.loopSetTempo( self.tempo )
#======================================================
# GUI
if True: # GUI
self.GUI = {}
self.GUI["mainVBox"] = gtk.VBox()
self.add( self.GUI["mainVBox"] )
#-- Desktop -------------------------------------------
self.desktop = self.GUI["desktop"] = Desktop( self )
self.GUI["mainVBox"].pack_start( self.GUI["desktop"] )
#-- Bank ----------------------------------------------
self.GUI["bankVBox"] = gtk.VBox()
self.GUI["mainVBox"].pack_start( self.GUI["bankVBox"], False, False )
if True: # Tabs
self.GUI["bankTabs"] = gtk.HBox()
self.GUI["bankTabs"].set_size_request( -1, 38 )
self.GUI["bankVBox"].pack_start( self.GUI["bankTabs"], False, False )
self.GUI["bankInstrumentsTab"] = gtk.RadioButton( None, "Instruments" )
self.GUI["bankInstrumentsTab"].connect( "clicked", lambda w: self.setPicker( Picker.Instrument, None ) )
self.GUI["bankTabs"].pack_start( self.GUI["bankInstrumentsTab"] )
self.GUI["bankDrumsTab"] = gtk.RadioButton( self.GUI["bankInstrumentsTab"], "Drums" )
self.GUI["bankDrumsTab"].connect( "clicked", lambda w: self.setPicker( Picker.Drum ) )
self.GUI["bankTabs"].pack_start( self.GUI["bankDrumsTab"] )
self.GUI["bankLoopsTab"] = gtk.RadioButton( self.GUI["bankInstrumentsTab"], "Loops" )
self.GUI["bankLoopsTab"].connect( "clicked", lambda w: self.setPicker( Picker.Loop ) )
self.GUI["bankTabs"].pack_start( self.GUI["bankLoopsTab"] )
if True: # Picker
self.GUI["bankPicker"] = gtk.HBox()
self.GUI["bankPicker"].set_size_request( -1, 149 )
self.GUI["bankVBox"].pack_start( self.GUI["bankPicker"], False, False )
self.pickers = {}
self.pickerScroll = {}
for type in [ Picker.Instrument, Picker.Drum, Picker.Loop ]:
self.pickers[type] = type( self )
self.show_all()
self.curPicker = None
self.setPicker( Picker.Instrument )
#-- Keyboard ------------------------------------------
self.key_dict = {}
self.nextTrack = 1
# default instrument
self._updateInstrument( Config.INSTRUMENTS["kalimba"].instrumentId, 0.5 )
#-- Drums ---------------------------------------------
# use dummy values for now
self.drumFillin = Fillin( 2, 100, Config.INSTRUMENTS["drum1kit"].instrumentId, self.reverb, 1 )
def onActivate( self, arg ):
pass
def onDeactivate( self ):
pass
def onDestroy( self ):
pass
def getDesktop( self ):
return self.desktop
def setPicker( self, type, filter = None ):
if self.curPicker == type:
if self.pickers[self.curPicker].getFilter() == filter:
return
self.pickers[self.curPicker].setFilter( filter )
else:
if self.curPicker != None:
self.GUI["bankPicker"].remove( self.pickers[self.curPicker] )
self.GUI["bankPicker"].pack_start( self.pickers[type] )
self.curPicker = type
def onKeyPress( self, widget, event ):
key = event.hardware_keycode
if self.key_dict.has_key( key ): # repeated press
return
if Config.KEY_MAP_PIANO.has_key( key ):
pitch = Config.KEY_MAP_PIANO[key]
inst = Config.INSTRUMENTS[self.instrument["name"]]
if inst.kit: # drum kit
if pitch in GenerationConstants.DRUMPITCH:
pitch = GenerationConstants.DRUMPITCH[pitch]
self._playNote( key,
36,
self.instrument["amplitude"],
self.instrument["pan"],
100,
inst.kit[pitch],
self.instrument["reverb"] )
else:
if event.state == gtk.gdk.MOD1_MASK:
pitch += 5
if inst.csoundInstrumentId == Config.INST_PERC: #Percussions resonance
duration = 60
else:
duration = -1
self._playNote( key,
pitch,
self.instrument["amplitude"],
self.instrument["pan"],
duration,
self.instrument["id"],
self.instrument["reverb"] )
def onKeyRelease( self, widget, event ):
key = event.hardware_keycode
if self.key_dict.has_key( key ):
self._stopNote( key )
def _playNote( self, key, pitch, amplitude, pan, duration, instrumentId, reverb ):
self.key_dict[key] = CSoundNote( 0, # onset
pitch,
amplitude,
pan,
duration,
self.nextTrack,
instrumentId,
reverbSend = reverb,
tied = True,
mode = 'mini' )
self.nextTrack += 1
if self.nextTrack > 8:
self.nextTrack = 1
self.csnd.play(self.key_dict[key], 0.3)
def _stopNote( self, key ):
csnote = self.key_dict[key]
if Config.INSTRUMENTSID[ csnote.instrumentId ].csoundInstrumentId == Config.INST_TIED:
csnote.duration = .5
csnote.decay = 0.7
csnote.tied = False
self.csnd.play(csnote, 0.3)
del self.key_dict[key]
def _updateInstrument( self, id, volume ):
self.instrument = { "name": Config.INSTRUMENTSID[id].name,
"id": id,
"amplitude": sqrt( self.volume*volume*0.1 ),
"pan": 0.5,
"reverb": self.reverb }
def _playDrum( self, id, volume, beats, regularity, seed ):
def flatten(ll):
rval = []
for l in ll:
rval += l
return rval
noteOnsets = []
notePitchs = []
i = 0
self.noteList= []
self.csnd.loopClear()
for x in flatten( generator( Config.INSTRUMENTSID[id].name, beats, 0.8, regularity, self.reverb) ):
x.amplitude = x.amplitude * volume
noteOnsets.append(x.onset)
notePitchs.append(x.pitch)
n = Note(0, x.trackId, i, x)
self.noteList.append( (x.onset, n) )
i = i + 1
self.csnd.loopPlay(n,1) #add as active
self.csnd.loopSetNumTicks( beats * Config.TICKS_PER_BEAT )
self.drumFillin.setProperties( self.tempo, Config.INSTRUMENTSID[id].name, volume, beats, self.reverb )
self.drumFillin.unavailable( noteOnsets, notePitchs )
self.drumFillin.play()
self.csnd.loopSetTick(0)
self.csnd.loopStart()
def _stopDrum( self ):
self.drumFillin.stop()
self.csnd.loopPause()
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