# -*- coding: ISO-8859-1 -*-



# standard library imports

import sys

from types import StringType

from struct import unpack

from cStringIO import StringIO



# custom import

from DataTypeConverters import writeBew, writeVar, fromBytes



class RawOutstreamFile:

    

    """

    

    Writes a midi file to disk.

    

    """



    def __init__(self, outfile=''):

        self.buffer = StringIO()

        self.outfile = outfile





    # native data reading functions





    def writeSlice(self, str_slice):

        "Writes the next text slice to the raw data"

        self.buffer.write(str_slice)

        

        

    def writeBew(self, value, length=1):

        "Writes a value to the file as big endian word"

        self.writeSlice(writeBew(value, length))





    def writeVarLen(self, value):

        "Writes a variable length word to the file"

        var = self.writeSlice(writeVar(value))





    def write(self):

        "Writes to disc"

        if self.outfile:

            if isinstance(self.outfile, StringType):

                outfile = open(self.outfile, 'wb')

                outfile.write(self.getvalue())

                outfile.close()

            else:

                self.outfile.write(self.getvalue())

        else:

            sys.stdout.write(self.getvalue())

                

    def getvalue(self):

        return self.buffer.getvalue()





if __name__ == '__main__':



    out_file = 'test/midifiles/midiout.mid'

    out_file = ''

    rawOut = RawOutstreamFile(out_file)

    rawOut.writeSlice('MThd')

    rawOut.writeBew(6, 4)

    rawOut.writeBew(1, 2)

    rawOut.writeBew(2, 2)

    rawOut.writeBew(15360, 2)

    rawOut.write()