view Syncopation models/music_objects.py @ 9:c2843ef4de2c

changing filenames to Python conventions

from BasicFuncs import ceiling

import ParameterSetter 
import RhythmParser 

class Note():
	def __init__(self, argstring):
		intlist = map(int,argstring.split(','))
		self.startTime = intlist[0]
		self.duration = intlist[1]
		self.velocity = intlist[2]
	
	# toString()

# NoteSequence is a list of Note
class NoteSequence(list):
	def __init__(self, noteSequenceString=None):
		if noteSequenceString!=None:
			self.string_to_note_sequence(noteSequenceString)

	def string_to_note_sequence(self, noteSequenceString):
		noteSequenceString = RhythmParser.discardSpaces(noteSequenceString)
		# try:
			# Turning "(1,2,3),(4,5,6),(7,8,9)" into ["1,2,3","4,5,6,","7,8,9"]
		listStrings = noteSequenceString[1:-1].split("),(")
		for localString in listStrings:
			self.append(Note(localString))

	# toString()


print NoteSequence("(1,2,3),(4,5,6),(7,8,9)")
# class VelocitySequence(list):
# 	def __init__(self, noteSequenceString=None):
# 		if noteSequenceString!=None:
# 			self.string_to_note_sequence(noteSequenceString)

# 	def string_to_note_sequence(string):


class BarList(list):
	def append(self,bar):
		if(len(self)>0):
			bar.set_previous_bar(self[-1])
			self[-1].set_next_bar(bar)
		super(BarList, self).append(bar)



class Bar:

	def __init__(self, rhythmSequence, timeSignature, ticksPerQuarter=None, qpmTempo=None, nextBar=None, prevBar=None):
		if isinstance(rhythmSequence, NoteSequence):
			self.noteSequence = rhythmSequence
			self.velocitySequence = None 
		elif isinstance(rhythmSequence, VelocitySequence):
			self.velocitySequence = rhythmSequence
			self.noteSequence = None 

		self.tpq = ticksPerQuarter
		self.qpm = qpmTempo
		self.timeSignature = timeSignature
		self.nextBar = nextBar
		self.prevBar = prevBar

	def get_note_sequence(self):
		#if self.noteSequence==None:
		#	self.noteSequence = velocitySequenceToNotes(self.velocitySequence)
		return self.noteSequence

	def get_velocity_sequence(self):
		if self.velocitySequence==None:
			self.velocitySequence = noteSequenceToVelocities(self.velocitySequence)
		return self.velocitySequence

	def get_binary_sequence(self):
		return ceiling(self.get_velocity_sequence())

	def get_next_bar(self):
		return self.nextBar

	def get_previous_bar(self):
		return self.prevBar

	def set_next_bar(self, bar):
		self.nextBar = bar

	def set_previous_bar(self, bar):
		self.prevBar = bar		

	def get_subdivision_sequence(self):
		return ParameterSetter.get_subdivision_seq(self.timeSignature)

	def get_beat_level(self):
		return ParameterSetter.get_beat_level(self.timeSignature)

	def get_time_signature(self):
		return self.timeSignature

	def get_t_span(self):
		# return the length of a bar in time units
		return None # NEED TO IMPLEMENT