def _auto_gas_exchange(self):
self.info('Starting auto gas exchange')
self._timer = Timer(1000, self._update_pressure)
self._timer.Start()
# self.controller.start_update_timer()
if not self.confirmation_dialog('Are both gas cylinders closed', title='Auto Gas Exchange'):
self._timer.Stop()
return
self.controller.do_auto_vac()
if not self.confirmation_dialog('Open Premix Cylinder, set secondary pressure to 6.5 - 7.5 bar', title='Auto Gas Exchange'):
self._timer.Stop()
return
self.controller.do_auto_gas_exchange()
self.information_dialog('Close Premix Gas Cylinder', title='Auto Gas Exchange')
self._timer.Stop()
def _start_stop_button_fired(self):
if self._alive:
self._timer.Stop()
self._base_time = self.current_time
else:
self._start_time = time.time()
t = Timer(1000, self._iter)
self._timer = t
self._alive = not self._alive
def fade_out(self):
interval = self.fade_out_time / self.fade_out_steps
self.timer = Timer(interval, self._fade_out_step)
class UVGasHandlerManager(SwitchManager):
canvas = Instance(ExtractionLineCanvas2D)
controller = Any
use_explanation = False
mode = 'normal'
auto_gas_exchange = Button
# energy_readback=DelegatesTo('controller')
pressure_readback = DelegatesTo('controller')
# pressure_readback=Float
def set_software_lock(self, name, lock):
if lock:
self.lock(name)
else:
self.unlock(name)
def load(self):
path = os.path.join(paths.extraction_line_dir,
'uv_gas_handling_valves.xml')
self._load_valves_from_file(path)
return True
def open_valve(self, name, mode):
pass
# v = self.get_valve_by_name(name)
# self.controller.open_valve(v.address)
# return True
def close_valve(self, name, mode):
pass
# v = self.get_valve_by_name(name)
# self.controller.close_valve(v.address)
# return True
def _auto_gas_exchange(self):
self.info('Starting auto gas exchange')
self._timer = Timer(1000, self._update_pressure)
self._timer.Start()
# self.controller.start_update_timer()
if not self.confirmation_dialog('Are both gas cylinders closed',
title='Auto Gas Exchange'):
self._timer.Stop()
return
self.controller.do_auto_vac()
if not self.confirmation_dialog(
'Open Premix Cylinder, set secondary pressure to 6.5 - 7.5 bar',
title='Auto Gas Exchange'):
self._timer.Stop()
return
self.controller.do_auto_gas_exchange()
self.information_dialog('Close Premix Gas Cylinder',
title='Auto Gas Exchange')
self._timer.Stop()
def _update_pressure(self):
self.controller.get_pressure()
# ===============================================================================
# handlers
# ===============================================================================
def _auto_gas_exchange_fired(self):
self._auto_gas_exchange()
def _canvas_default(self):
p = os.path.join(paths.canvas2D_dir, 'uv_gas_handling_canvas.xml')
canvas = ExtractionLineCanvas2D(manager=self)
canvas.load_canvas_file(p)
return canvas
def traits_view(self):
ctrl_grp = HGroup(Item('auto_gas_exchange', show_label=False))
info_grp = HGroup(
# Item('energy_readback', width=50,style='readonly'),
Item('pressure_readback', width=50, style='readonly'))
v = View(ctrl_grp,
info_grp,
Item(
'canvas',
show_label=False,
editor=ComponentEditor(),
),
resizable=True,
width=700,
height=500)
return v
def configure_traits(self, *args, **kws):
# Start up the timer! We should do this only when the demo actually
# starts and not when the demo object is created.
self.timer = Timer(PERIOD, self.controller.timer_tick)
return super(LightSensorApplication, self).configure_traits(*args, **kws)