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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Howto Square Qt
# Generated: Sat Nov 10 15:23:43 2012
##################################################
from PyQt4 import Qt
from gnuradio import analog
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import qtgui
from gnuradio.eng_option import eng_option
from gnuradio.gr import firdes
from optparse import OptionParser
import howto
import sip
import sys
class howto_square_qt(gr.top_block, Qt.QWidget):
def __init__(self):
gr.top_block.__init__(self, "Howto Square Qt")
Qt.QWidget.__init__(self)
self.setWindowTitle("Howto Square Qt")
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "howto_square_qt")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 32000
##################################################
# Blocks
##################################################
self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
1024, #size
samp_rate, #samp_rate
"QT GUI Plot", #name
3 #number of inputs
)
self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_time_sink_x_0_win)
self.howto_square_ff_0 = howto.square_ff()
self.howto_square2_ff_0 = howto.square2_ff()
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, samp_rate)
self.analog_sig_source_x_0 = analog.sig_source_f(samp_rate, analog.GR_COS_WAVE, 1000, 1, 0)
##################################################
# Connections
##################################################
self.connect((self.howto_square2_ff_0, 0), (self.qtgui_time_sink_x_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.howto_square2_ff_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.howto_square_ff_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.qtgui_time_sink_x_0, 1))
self.connect((self.howto_square_ff_0, 0), (self.qtgui_time_sink_x_0, 2))
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_throttle_0, 0))
# QT sink close method reimplementation
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "howto_square_qt")
self.settings.setValue("geometry", self.saveGeometry())
event.accept()
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
if __name__ == '__main__':
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
(options, args) = parser.parse_args()
qapp = Qt.QApplication(sys.argv)
tb = howto_square_qt()
tb.start()
tb.show()
qapp.exec_()
tb.stop()
tb = None #to clean up Qt widgets
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