class MainApplication:
'''
Main class that initiate all (gui + server + logger)
'''
def __init__(self, root, log_level, ip, port ):
self.root = root
self.log_level = log_level
self.ip = ip
self.port = port
self.root.columnconfigure(0, weight=1)
self.root.rowconfigure(0, weight=1)
self.root.geometry('1024x680')
# 2 rows: firts with settings, second with registrar data
self.main_frame = tk.Frame(self.root)
# Commands row doesn't expands
self.main_frame.rowconfigure(0, weight=0)
# Logs row will grow
self.main_frame.rowconfigure(1, weight=1)
# Main fram can enlarge
self.main_frame.columnconfigure(0, weight=1)
self.main_frame.columnconfigure(1, weight=1)
self.main_frame.columnconfigure(2, weight=1)
self.main_frame.columnconfigure(3, weight=1)
self.main_frame.columnconfigure(4, weight=1)
self.main_frame.grid(row=0, column=0, sticky=tk.NSEW)
self.main_frame.configure(bg=frame_bgr_stop)
#self.port_text.insert('end',port)
# Run/Stop button
self.control_button = tk.Button(self.main_frame, text="Run Server", font=btn_font, bg=btn_clr, command=self.run_server)
self.control_button.grid(row=0, column=0, ipady=10)
self.L1 = tk.Label(self.main_frame, text="Port number", bg=frame_bgr_stop, font=('Century Gotic', 12, 'bold'))
self.L1.grid(row=0, column=1, ipady=10)
self.E1 = tk.Entry(self.main_frame, width=10, font=btn_font)
self.E1.grid(row=0, column=2, ipady=10)
self.E1.insert('end', '1234')
# Clear button
self.clear_button = tk.Button(self.main_frame, text="Clear Log", font=btn_font, bg=btn_clr, command=self.clear_log)
self.clear_button.grid(row=0, column=3, ipady=10)
# Stop log button
self.control_log_button = tk.Button(self.main_frame, text="Pause Log", font=btn_font, bg=btn_clr, command=self.stop_log)
self.control_log_button.grid(row=0, column=4, ipady=10)
# Logs Widget
self.log_widget = ScrolledText(self.main_frame)
self.log_widget.grid(row=1, column=0, columnspan=5, sticky=tk.NSEW)
# Not editable
self.log_widget.config(state='disabled')
# Queue where the logging handler will write
self.log_queue = queue.Queue()
# Stup the logger
l = logging.getLogger('logger')
l.setLevel(self.log_level)
formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
# Use the QueueLogger as Handler
hl = QueueLogger(queue=self.log_queue)
hl.setFormatter(formatter)
l.addHandler(hl)
self.logger = logging.getLogger('logger')
# Setup the update_widget callback reading logs from the queue
self.start_log()
def stop_log(self):
self.logger.info("Pausing the logger")
if self.logger_alarm is not None:
self.log_widget.after_cancel(self.logger_alarm)
self.control_log_button.configure(text="Start Log", command=self.start_log)
self.logger_alarm = None
def start_log(self):
self.logger.info("Starting the logger")
self.update_widget(self.log_widget, self.log_queue)
self.control_log_button.configure(text="Pause Log", command=self.stop_log)
def update_widget(self, widget, queue):
widget.config(state='normal')
# Read from the Queue and add to the log widger
while not queue.empty():
line = queue.get()
widget.insert(tk.END, line)
widget.see(tk.END) # Scroll to the bottom
widget.update_idletasks()
widget.config(state='disabled')
self.logger_alarm = widget.after(10, self.update_widget, widget, queue)
def clear_log(self):
self.log_widget.config(state='normal')
self.log_widget.delete(0.0, tk.END)
self.log_widget.config(state='disabled')
# run_server - open connection when the button is pressed
def run_server(self):
self.port = int(self.E1.get())
self.logger.info("Starting Server on ip %s and port %d",self.ip, self.port)
try:
self.server = LoggedTCPServer((self.ip, self.port), MyTCPHandler, self.logger)
self.server_thread = threading.Thread(name='server', target=self.server.serve_forever)
self.server_thread.daemon = True
self.server_thread.start()
self.control_button.configure(text="Stop Server", command=self.stop_server)
self.main_frame.configure(bg=frame_bgr_run)
self.L1.configure(bg=frame_bgr_run)
except Exception:
self.logger.error("Cannot start the server: %s",str(self.ip))
raise Exception
# stop_server - close connection when the button is pressed
def stop_server(self):
self.logger.info("Stopping server")
self.server.shutdown()
self.server.socket.close()
self.logger.debug("Server stopped")
self.control_button.configure(text="Run Server", command=self.run_server)
self.main_frame.configure(bg=frame_bgr_stop)
self.L1.configure(bg=frame_bgr_stop)
