#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: Flight Spectrum Analyzer
# Generated: Fri Sep  8 05:12:34 2017
##################################################

if __name__ == '__main__':
    import ctypes
    import sys
    if sys.platform.startswith('linux'):
        try:
            x11 = ctypes.cdll.LoadLibrary('libX11.so')
            x11.XInitThreads()
        except:
            print "Warning: failed to XInitThreads()"

from PyQt4 import Qt
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import qtgui
from gnuradio import uhd
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from gnuradio.qtgui import Range, RangeWidget
from optparse import OptionParser
import sip
import sys
import time
from gnuradio import qtgui


class flight_spectrum_analyzer(gr.top_block, Qt.QWidget):

    def __init__(self):
        gr.top_block.__init__(self, "Flight Spectrum Analyzer")
        Qt.QWidget.__init__(self)
        self.setWindowTitle("Flight Spectrum Analyzer")
        qtgui.util.check_set_qss()
        try:
            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
        except:
            pass
        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", "flight_spectrum_analyzer")
        self.restoreGeometry(self.settings.value("geometry").toByteArray())

        ##################################################
        # Variables
        ##################################################
        self.sample_rate = sample_rate = 56e06
        self.gain = gain = 76
        self.frequency = frequency = 890e06

        ##################################################
        # Blocks
        ##################################################
        self._sample_rate_range = Range(0, 56e06, 1, 56e06, 200)
        self._sample_rate_win = RangeWidget(self._sample_rate_range, self.set_sample_rate, "sample_rate", "counter_slider", float)
        self.top_layout.addWidget(self._sample_rate_win)
        self._gain_range = Range(0, 76, 1, 76, 200)
        self._gain_win = RangeWidget(self._gain_range, self.set_gain, "gain", "counter_slider", float)
        self.top_layout.addWidget(self._gain_win)
        self._frequency_range = Range(0, 6e09, 10e06, 890e06, 200)
        self._frequency_win = RangeWidget(self._frequency_range, self.set_frequency, "frequency", "counter_slider", float)
        self.top_layout.addWidget(self._frequency_win)
        self.uhd_usrp_source_0 = uhd.usrp_source(
        	",".join(("", "")),
        	uhd.stream_args(
        		cpu_format="fc32",
        		channels=range(1),
        	),
        )
        self.uhd_usrp_source_0.set_samp_rate(sample_rate)
        self.uhd_usrp_source_0.set_center_freq(frequency, 0)
        self.uhd_usrp_source_0.set_gain(gain, 0)
        self.uhd_usrp_source_0.set_antenna('RX2', 0)
        self.uhd_usrp_source_0.set_bandwidth(sample_rate, 0)
        self.qtgui_sink_x_0 = qtgui.sink_c(
        	1024, #fftsize
        	firdes.WIN_BLACKMAN_hARRIS, #wintype
        	frequency, #fc
        	sample_rate, #bw
        	'QT GUI Plot', #name
        	True, #plotfreq
        	True, #plotwaterfall
        	True, #plottime
        	True, #plotconst
        )
        self.qtgui_sink_x_0.set_update_time(1.0/10)
        self._qtgui_sink_x_0_win = sip.wrapinstance(self.qtgui_sink_x_0.pyqwidget(), Qt.QWidget)
        self.top_layout.addWidget(self._qtgui_sink_x_0_win)

        self.qtgui_sink_x_0.enable_rf_freq(True)




        ##################################################
        # Connections
        ##################################################
        self.connect((self.uhd_usrp_source_0, 0), (self.qtgui_sink_x_0, 0))

    def closeEvent(self, event):
        self.settings = Qt.QSettings("GNU Radio", "flight_spectrum_analyzer")
        self.settings.setValue("geometry", self.saveGeometry())
        event.accept()

    def get_sample_rate(self):
        return self.sample_rate

    def set_sample_rate(self, sample_rate):
        self.sample_rate = sample_rate
        self.uhd_usrp_source_0.set_samp_rate(self.sample_rate)
        self.uhd_usrp_source_0.set_bandwidth(self.sample_rate, 0)
        self.qtgui_sink_x_0.set_frequency_range(self.frequency, self.sample_rate)

    def get_gain(self):
        return self.gain

    def set_gain(self, gain):
        self.gain = gain
        self.uhd_usrp_source_0.set_gain(self.gain, 0)


    def get_frequency(self):
        return self.frequency

    def set_frequency(self, frequency):
        self.frequency = frequency
        self.uhd_usrp_source_0.set_center_freq(self.frequency, 0)
        self.qtgui_sink_x_0.set_frequency_range(self.frequency, self.sample_rate)


def main(top_block_cls=flight_spectrum_analyzer, options=None):

    from distutils.version import StrictVersion
    if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
        style = gr.prefs().get_string('qtgui', 'style', 'raster')
        Qt.QApplication.setGraphicsSystem(style)
    qapp = Qt.QApplication(sys.argv)

    tb = top_block_cls()
    tb.start()
    tb.show()

    def quitting():
        tb.stop()
        tb.wait()
    qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
    qapp.exec_()


if __name__ == '__main__':
    main()