def main(screen):
"""Start scanner with GUI interface
Initialize and set up screen
Create windows
Create scanner object
Executes scan cycles
Update windows
Process keyboard strokes
"""
# pylint: disable=too-many-statements
# pylint: disable-msg=R0914
# Use the curses.wrapper() to crash cleanly
# Note the screen object is passed from the wrapper()
# http://stackoverflow.com/questions/9854511/python-curses-dilemma
# The issue is the debuuger won't work with the wrapper()
# Nor does the python optiosn parser
# So enable the next 2 lines and don't pass screen to main()
#screen = curses.initscr()
#curses.start_color()
# Setup the screen
cursesgui.setup_screen(screen)
# Create windows
specwin = cursesgui.SpectrumWindow(screen)
chanwin = cursesgui.ChannelWindow(screen)
lockoutwin = cursesgui.LockoutWindow(screen)
rxwin = cursesgui.RxWindow(screen)
# Create scanner object
ask_samp_rate = PARSER.ask_samp_rate
num_demod = PARSER.num_demod
type_demod = PARSER.type_demod
hw_args = PARSER.hw_args
record = PARSER.record
play = PARSER.play
lockout_file_name = PARSER.lockout_file_name
priority_file_name = PARSER.priority_file_name
freq_correction = PARSER.freq_correction
audio_bps = PARSER.audio_bps
scanner = scnr.Scanner(ask_samp_rate, num_demod, type_demod, hw_args,
freq_correction, record, lockout_file_name,
priority_file_name, play, audio_bps)
# Set the paramaters
scanner.set_center_freq(PARSER.center_freq)
scanner.set_gain(PARSER.gain_db)
scanner.set_if_gain(PARSER.if_gain_db)
scanner.set_bb_gain(PARSER.bb_gain_db)
scanner.set_squelch(PARSER.squelch_db)
scanner.set_volume(PARSER.volume_db)
scanner.set_threshold(PARSER.threshold_db)
# Get the initial settings for GUI
rxwin.center_freq = scanner.center_freq
rxwin.samp_rate = scanner.samp_rate
rxwin.gain_db = scanner.gain_db
rxwin.if_gain_db = scanner.if_gain_db
rxwin.bb_gain_db = scanner.bb_gain_db
rxwin.squelch_db = scanner.squelch_db
rxwin.volume_db = scanner.volume_db
rxwin.record = scanner.record
rxwin.type_demod = type_demod
rxwin.lockout_file_name = scanner.lockout_file_name
rxwin.priority_file_name = scanner.priority_file_name
specwin.threshold_db = scanner.threshold_db
while 1:
# No need to go faster than 10 Hz rate of GNU Radio probe
time.sleep(0.1)
# Initiate a scan cycle
scanner.scan_cycle()
# Update the spectrum, channel, and rx displays
specwin.draw_spectrum(scanner.spectrum)
chanwin.draw_channels(scanner.gui_tuned_channels)
lockoutwin.draw_channels(scanner.gui_lockout_channels)
rxwin.draw_rx()
# Update physical screen
curses.doupdate()
# Get keystroke
keyb = screen.getch()
# Send keystroke to spectrum window and update scanner if True
if specwin.proc_keyb(keyb):
scanner.set_threshold(specwin.threshold_db)
# Send keystroke to RX window and update scanner if True
if rxwin.proc_keyb_hard(keyb):
# Set and update frequency
scanner.set_center_freq(rxwin.center_freq)
rxwin.center_freq = scanner.center_freq
if rxwin.proc_keyb_soft(keyb):
# Set and update RF gain
scanner.set_gain(rxwin.gain_db)
rxwin.gain_db = scanner.gain_db
# Set and update IF gain
scanner.set_if_gain(rxwin.if_gain_db)
rxwin.if_gain_db = scanner.if_gain_db
# Set and update BB gain
scanner.set_bb_gain(rxwin.bb_gain_db)
rxwin.bb_gain_db = scanner.bb_gain_db
# Set and update squelch
scanner.set_squelch(rxwin.squelch_db)
rxwin.squelch_db = scanner.squelch_db
# Set and update volume
scanner.set_volume(rxwin.volume_db)
rxwin.volume_db = scanner.volume_db
# Send keystroke to lockout window and update lockout channels if True
if lockoutwin.proc_keyb_set_lockout(keyb):
# Subtract 48 from ascii keyb value to obtain 0 - 9
idx = keyb - 48
scanner.add_lockout(idx)
if lockoutwin.proc_keyb_clear_lockout(keyb):
scanner.clear_lockout()
def main(screen):
"""Start scanner with GUI interface
Initialize and set up screen
Create windows
Create scanner object
Executes scan cycles
Update windows
Process keyboard strokes
"""
# pylint: disable=too-many-statements
# pylint: disable-msg=R0914
# Use the curses.wrapper() to crash cleanly
# Note the screen object is passed from the wrapper()
# http://stackoverflow.com/questions/9854511/python-curses-dilemma
# The issue is the debuuger won't work with the wrapper()
# Nor does the python optiosn parser
# So enable the next 2 lines and don't pass screen to main()
#screen = curses.initscr()
#curses.start_color()
# Setup the screen
cursesgui.setup_screen(screen)
# Create windows
specwin = cursesgui.SpectrumWindow(screen)
chanwin = cursesgui.ChannelWindow(screen)
lockoutwin = cursesgui.LockoutWindow(screen)
rxwin = cursesgui.RxWindow(screen)
# Create scanner object
ask_samp_rate = PARSER.ask_samp_rate
num_demod = PARSER.num_demod
type_demod = PARSER.type_demod
hw_args = PARSER.hw_args
record = PARSER.record
play = PARSER.play
lockout_file_name = PARSER.lockout_file_name
priority_file_name = PARSER.priority_file_name
channel_log_file_name = PARSER.channel_log_file_name
channel_log_timeout = PARSER.channel_log_timeout
freq_correction = PARSER.freq_correction
audio_bps = PARSER.audio_bps
max_demod_length = PARSER.max_demod_length
channel_spacing = PARSER.channel_spacing
min_file_size = PARSER.min_file_size
center_freq = PARSER.center_freq
freq_low = PARSER.freq_low
freq_high = PARSER.freq_high
scanner = scnr.Scanner(ask_samp_rate, num_demod, type_demod, hw_args,
freq_correction, record, lockout_file_name,
priority_file_name, channel_log_file_name,
channel_log_timeout, play, audio_bps,
max_demod_length, channel_spacing, min_file_size,
center_freq, freq_low, freq_high)
# Set the paramaters
scanner.set_center_freq(center_freq)
scanner.set_squelch(PARSER.squelch_db)
scanner.set_volume(PARSER.volume_db)
scanner.set_threshold(PARSER.threshold_db)
rxwin.gains = scanner.filter_and_set_gains(PARSER.gains)
# Get the initial settings for GUI
rxwin.center_freq = scanner.center_freq
rxwin.min_freq = scanner.min_freq
rxwin.max_freq = scanner.max_freq
rxwin.freq_low = scanner.freq_low
rxwin.freq_high = scanner.freq_high
rxwin.samp_rate = scanner.samp_rate
rxwin.squelch_db = scanner.squelch_db
rxwin.volume_db = scanner.volume_db
rxwin.record = scanner.record
rxwin.type_demod = type_demod
rxwin.lockout_file_name = scanner.lockout_file_name
rxwin.priority_file_name = scanner.priority_file_name
rxwin.channel_log_file_name = scanner.channel_log_file_name
rxwin.channel_log_timeout = scanner.channel_log_timeout
if (rxwin.channel_log_file_name != ""):
rxwin.log_mode = "file"
else:
rxwin.log_mode = "none"
specwin.max_db = PARSER.max_db
specwin.min_db = PARSER.min_db
specwin.threshold_db = scanner.threshold_db
while 1:
# No need to go faster than 10 Hz rate of GNU Radio probe
time.sleep(0.1)
# Initiate a scan cycle
scanner.scan_cycle()
# Update the spectrum, channel, and rx displays
specwin.draw_spectrum(scanner.spectrum)
chanwin.draw_channels(scanner.gui_tuned_channels,
scanner.gui_active_channels)
lockoutwin.draw_channels(scanner.gui_lockout_channels,
scanner.gui_active_channels)
rxwin.draw_rx()
# Update physical screen
curses.doupdate()
# Get keystroke
keyb = screen.getch()
if keyb == ord('Q'):
break
# Send keystroke to spectrum window and update scanner if True
if specwin.proc_keyb(keyb):
scanner.set_threshold(specwin.threshold_db)
# Send keystroke to RX window and update scanner if True
if rxwin.proc_keyb_hard(keyb):
# Set and update frequency
scanner.set_center_freq(rxwin.center_freq)
rxwin.center_freq = scanner.center_freq
rxwin.min_freq = scanner.min_freq
rxwin.max_freq = scanner.max_freq
if rxwin.proc_keyb_soft(keyb):
# Set all the gains
rxwin.gains = scanner.filter_and_set_gains(rxwin.gains)
# Set and update squelch
scanner.set_squelch(rxwin.squelch_db)
rxwin.squelch_db = scanner.squelch_db
# Set and update volume
scanner.set_volume(rxwin.volume_db)
rxwin.volume_db = scanner.volume_db
# Send keystroke to lockout window and update lockout channels if True
if lockoutwin.proc_keyb_set_lockout(
keyb) and rxwin.freq_entry == 'None':
# Subtract 48 from ascii keyb value to obtain 0 - 9
idx = keyb - 48
scanner.add_lockout(idx)
if lockoutwin.proc_keyb_clear_lockout(keyb):
scanner.clear_lockout()
# cleanup terminating all demodulators
for demod in scanner.receiver.demodulators:
demod.set_center_freq(0, 0)