#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Vector Subtract
# Generated: Mon Dec 19 17:18:29 2011
##################################################

from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import window
from gnuradio.eng_option import eng_option
from gnuradio.gr import firdes
from grc_gnuradio import wxgui as grc_wxgui
from optparse import OptionParser
import wx

class vector_subtract(grc_wxgui.top_block_gui):

	def __init__(self):
		grc_wxgui.top_block_gui.__init__(self, title="Vector Subtract")
		_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
		self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))

		##################################################
		# Variables
		##################################################
		self.veclen = veclen = 1024
		self.samp_rate = samp_rate = 32000

		##################################################
		# Blocks
		##################################################
		self.gr_vector_to_stream_0 = gr.vector_to_stream(gr.sizeof_gr_complex*1, veclen)
		self.gr_sub_xx_0 = gr.sub_cc(1)
		self.gr_stream_to_vector_0 = gr.stream_to_vector(gr.sizeof_gr_complex*1, veclen)
		self.gr_null_sink_0 = gr.null_sink(gr.sizeof_gr_complex*veclen)
		self.gr_file_source_0 = gr.file_source(gr.sizeof_gr_complex*veclen, "", False)
		self.gr_fft_vxx_0 = gr.fft_vcc(veclen, True, (window.blackmanharris(veclen)), True)
		self.gr_delay_0 = gr.delay(gr.sizeof_gr_complex*1, 1)

		##################################################
		# Connections
		##################################################
		self.connect((self.gr_vector_to_stream_0, 0), (self.gr_delay_0, 0))
		self.connect((self.gr_delay_0, 0), (self.gr_sub_xx_0, 1))
		self.connect((self.gr_vector_to_stream_0, 0), (self.gr_sub_xx_0, 0))
		self.connect((self.gr_sub_xx_0, 0), (self.gr_stream_to_vector_0, 0))
		self.connect((self.gr_stream_to_vector_0, 0), (self.gr_null_sink_0, 0))
		self.connect((self.gr_file_source_0, 0), (self.gr_fft_vxx_0, 0))
		self.connect((self.gr_fft_vxx_0, 0), (self.gr_vector_to_stream_0, 0))

	def get_veclen(self):
		return self.veclen

	def set_veclen(self, veclen):
		self.veclen = veclen

	def get_samp_rate(self):
		return self.samp_rate

	def set_samp_rate(self, samp_rate):
		self.samp_rate = samp_rate

if __name__ == '__main__':
	parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
	(options, args) = parser.parse_args()
	tb = vector_subtract()
	tb.Run(True)