class Application(tk.Frame):
def __init__(self, master=None, queue=None):
super().__init__(master)
self._create_widgets(master)
self._mq = Broker(event_generate=master.event_generate)
master.bind('<<SENT_EVENT>>', self.handle_event)
def _create_widgets(self, master):
self.mainframe = tk.Frame(master)
self.mainframe.grid(row=1, column=1, sticky='NESW')
b = tk.Button(self.mainframe, text="a button")
b.configure(command=self.button_command)
# b.configure(command=lambda: self.button_command(b))
b.grid(row=1, column=1, sticky='NEW')
self.red_led = Indicator(master, LED_RED_OFF_IMG, LED_RED_ON_IMG, 100)
self.red_led.grid(row=2, column=1, sticky='SE')
self.red_blinker = Blinker(self.after, indfunc=self.red_led.flash)
self.green_led = Indicator(master, LED_GREEN_OFF_IMG, LED_GREEN_ON_IMG, 250)
self.green_led.grid(row=2, column=2, sticky='SW')
self.info_widget = tk.Label(master, text="<empty>")
self.info_widget.grid(row=3, column=1, sticky='SEW')
def button_command(self):
self.red_blinker.action()
self.green_led.blink()
x = Eventer(after=self.after,
indicate_func=self._mq.write)
x.action()
def handle_event(self, e):
print(str(self._mq))
try:
name, data = self._mq.read()
except IndexError:
return
if name == 'Info':
self.info_widget.config(text=data)
elif name == 'Alert':
showerror('Error', "{!s}".format(data))
