#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: Flight Recorder Playback
# Generated: Fri Sep  8 05:12:36 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 blocks
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import qtgui
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
import sip
import sys
from gnuradio import qtgui


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

    def __init__(self, frequency=890e06, input_file='test.txt', sample_rate=56e06):
        gr.top_block.__init__(self, "Flight Recorder Playback")
        Qt.QWidget.__init__(self)
        self.setWindowTitle("Flight Recorder Playback")
        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_recorder_playback")
        self.restoreGeometry(self.settings.value("geometry").toByteArray())

        ##################################################
        # Parameters
        ##################################################
        self.frequency = frequency
        self.input_file = input_file
        self.sample_rate = sample_rate

        ##################################################
        # Blocks
        ##################################################
        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)



        self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, sample_rate,True)
        self.blocks_file_source_0 = blocks.file_source(gr.sizeof_gr_complex*1, input_file, True)

        ##################################################
        # Connections
        ##################################################
        self.connect((self.blocks_file_source_0, 0), (self.blocks_throttle_0, 0))
        self.connect((self.blocks_throttle_0, 0), (self.qtgui_sink_x_0, 0))

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

    def get_frequency(self):
        return self.frequency

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

    def get_input_file(self):
        return self.input_file

    def set_input_file(self, input_file):
        self.input_file = input_file
        self.blocks_file_source_0.open(self.input_file, True)

    def get_sample_rate(self):
        return self.sample_rate

    def set_sample_rate(self, sample_rate):
        self.sample_rate = sample_rate
        self.qtgui_sink_x_0.set_frequency_range(self.frequency, self.sample_rate)
        self.blocks_throttle_0.set_sample_rate(self.sample_rate)


def argument_parser():
    parser = OptionParser(usage="%prog: [options]", option_class=eng_option)
    parser.add_option(
        "", "--frequency", dest="frequency", type="eng_float", default=eng_notation.num_to_str(890e06),
        help="Set frequency [default=%default]")
    parser.add_option(
        "", "--input-file", dest="input_file", type="string", default='test.txt',
        help="Set input_file [default=%default]")
    parser.add_option(
        "", "--sample-rate", dest="sample_rate", type="eng_float", default=eng_notation.num_to_str(56e06),
        help="Set sample_rate [default=%default]")
    return parser


def main(top_block_cls=flight_recorder_playback, options=None):
    if options is None:
        options, _ = argument_parser().parse_args()

    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(frequency=options.frequency, input_file=options.input_file, sample_rate=options.sample_rate)
    tb.start()
    tb.show()

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


if __name__ == '__main__':
    main()