class WindowDriver(object):
def __init__(self, full_open, step_interval=DEF_INTERVAL):
FORMAT = '%(asctime)s %(funcName)s[%(levelname)s] %(message)s'
logging.basicConfig(format=FORMAT, level=logging.INFO)
self.full_open = full_open
self.step_interval = step_interval
self.increment_size = self.full_open / NUM_INCREMENTS
cur_pos = self._getWindowPosition()
self.commanded_pos = cur_pos
self.exit = False
logging.debug('Starting driver thread')
self.driver_thread = DriverThread(self, self.step_interval, cur_pos)
self.driver_thread.daemon = True
self.driver_thread.start()
# Wait for driver thread to setup GPIO
sleep(0.5)
def _getWindowPosition(self):
f = open(windowStateFile, 'r')
steps = int(f.readline().strip())
f.close()
logging.info('position {0}'.format(steps))
return steps
def _writeWindowPosition(self, position):
f = open(windowStateFile, 'w')
f.write(str(int(position)))
f.flush()
f.close()
def _resolve_to_increment(self, exact_pos):
increment_pos = exact_pos - (exact_pos % self.increment_size)
return increment_pos
def set_position(self, percent_open):
'''
Set new window position as a percent of open. 100 is full open
'''
if (percent_open > 100 or percent_open < 0):
raise ValueError('Percent open {0} must be between 0 and 100'.format(percent_open))
exact_pos = self.full_open * percent_open / 100
self.commanded_pos = self._resolve_to_increment(exact_pos)
self._writeWindowPosition(self.commanded_pos)
msg = 'Percent open: {0} '.format(percent_open)
msg += 'Exact pos: {0} '.format(exact_pos)
logging.info(msg)
msg = 'Commanded pos: {0} '.format(self.commanded_pos)
msg += 'Actual pos: {0} '.format(self.get_actual_position())
logging.info(msg)
def get_commanded_position(self):
return self.commanded_pos
def get_actual_position(self):
return self.driver_thread.actual_position
def __init__(self, full_open, step_interval=DEF_INTERVAL):
FORMAT = '%(asctime)s %(funcName)s[%(levelname)s] %(message)s'
logging.basicConfig(format=FORMAT, level=logging.INFO)
self.full_open = full_open
self.step_interval = step_interval
self.increment_size = self.full_open / NUM_INCREMENTS
cur_pos = self._getWindowPosition()
self.commanded_pos = cur_pos
self.exit = False
logging.debug('Starting driver thread')
self.driver_thread = DriverThread(self, self.step_interval, cur_pos)
self.driver_thread.daemon = True
self.driver_thread.start()
# Wait for driver thread to setup GPIO
sleep(0.5)
