def run_cli(source, sample_rate, file_length_sec, debug, display_channel,
threshold_db, markfreq_hz, threshold_steps, nfft, device_name):
log_dir = source
if not os.path.isdir(log_dir):
print('Must provide valid log directory! source=%s' % str(log_dir))
exit(2)
stdscr, curses = config_curses()
console_height, console_width = stdscr.getmaxyx()
# setup dimensions for window
columns_of_data = int(nfft / 2)
min_width = columns_of_data + extra_column_buffer
while min_width > console_width:
nfft -= 10
columns_of_data = int(nfft / 2)
min_width = columns_of_data + extra_column_buffer
# make sure window is wide enough to fit the menu
if min_width <= menu_column_buffer:
min_width = menu_column_buffer
min_height = console_height
max_rows_specgram = min_height - menu_row_buffer
max_rows_specgram_no_menu = min_height
# create Ui object
ui = Ui(min_width,
min_height,
time.time(),
curses.color_pair,
max_rows_specgram,
max_rows_specgram_no_menu,
file_length_sec=file_length_sec,
sample_rate=sample_rate)
# create specgram object
specgram = Specgram(sample_rate,
file_length_sec,
display_channel,
device_name=device_name,
scale='dB',
threshdb=threshold_db,
threshdb_steps=threshold_steps,
markfreq=markfreq_hz,
nfft=nfft,
max_lines=ui.specgram_max_lines,
color_pair=curses.color_pair,
voltage_bar_width=voltage_bar_width)
# now dow stuff
try:
count = 0
latest_file = ui.get_file(stdscr, source)
previous_file = latest_file
is_dup = True
current_time = time.time()
previous_time = current_time
# setup the ui with the curses window and specgram object
stdscr, specgram = ui.spin(stdscr, specgram)
while True:
current_time = time.time()
if debug:
# start context manager for log file
with open(
'log_{0}.txt'.format(
unix_epoch_to_local(time.time(), no_date=True)),
'w+') as log_file:
if (current_time - previous_time) > (file_length_sec *
1000):
message = "iteration: {0} time: {1} last iteration happened, {2} seconds ago.\n".format(
count, unix_epoch_to_local(current_time),
(current_time - previous_time) * 0.001)
log_file.write(message)
previous_time = current_time
latest_file = ui.get_file(stdscr, source)
#
# if DAQ isn't running, new files aren't being added to the log dir
# - Let user know they are looking at the specgram of the same file over and over
# - Let's user know when they are looking at new streaming data
#
if latest_file == previous_file:
is_dup = True
else:
is_dup = False
previous_file = latest_file
# clear out data list
specgram.clear()
# take the file and parse into specgram object
rc = specgram.parse_file(latest_file)
# if rc == None:
# ui.message_buffer.append('Unable to read file...')
# # draw everything in the buffer
# stdscr.refresh()
# continue
# clear curses window
stdscr.erase()
try:
specgram.display(stdscr)
ui.update(stdscr, specgram, is_dup, count)
# spin ui will display menu and handle user inputs
stdscr, specgram = ui.spin(stdscr, specgram)
except curses.error as err:
ui.hard_reset(stdscr, specgram, max_rows_specgram,
max_rows_specgram_no_menu)
# draw everything in the buffer
stdscr.refresh()
count += 1
if count % 100 == 0:
ui.message_buffer = []
ui.message_buffer.append('CLEARED!')
except KeyboardInterrupt:
print('\n\tExiting...\n\n')
exit(1)
except ConfigError as err:
pass
finally:
curses.nocbreak()
stdscr.keypad(False)
curses.echo()
curses.endwin()
