class FindServer(Frame): def __init__(self, parent, controller): Frame.__init__(self, parent) self.selected = ""; self.controller = controller label = Label(self, text="Select server", font=TITLE_FONT, justify=CENTER, anchor=CENTER) label.pack(side="top", fill="x", pady=10) self.button1 = Button(self, text="Next",state="disabled", command=self.callback_choose) button2 = Button(self, text="Refresh", command=self.callback_refresh) button3 = Button(self, text="Back", command=self.callback_start) scrollbar = Scrollbar(self) self.mylist = Listbox(self, width=100, yscrollcommand = scrollbar.set ) self.mylist.bind("<Double-Button-1>", self.twoClick) self.button1.pack() button2.pack() button3.pack() # create list with a scroolbar scrollbar.pack( side = "right", fill="y" ) self.mylist.pack( side = "top", fill = "x", ipadx=20, ipady=20, padx=20, pady=20 ) scrollbar.config( command = self.mylist.yview ) # create a progress bar label2 = Label(self, text="Refresh progress bar", justify='center', anchor='center') label2.pack(side="top", fill="x") self.bar_lenght = 200 self.pb = Progressbar(self, length=self.bar_lenght, mode='determinate') self.pb.pack(side="top", anchor='center', ipadx=20, ipady=20, padx=10, pady=10) self.pb.config(value=0) # to select he server user must double-click on it def twoClick(self, event): widget = event.widget selection=widget.curselection() value = widget.get(selection[0]) self.selected = value self.button1.config(state="normal") # save the selected server in a global variable SELECTED_SERV = SERVER_LIST[selection[0]] set_globvar(SELECTED_SERV) # listen for broadcasts from port 8192 def listen_broadcasts(self, port, timeout): # Set the progress bar to 0 self.pb.config(value=0) step_size = ((self.bar_lenght/(MAX_NR_OF_SERVERS+1))/2) list_of_servers = [] # Initialize the listener s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1) s.bind(('', port)) s.settimeout(LISTENING_TIMEOUT) # Listen for a number of times to get multiple servers for _ in range(MAX_NR_OF_SERVERS + 1): # Update the progress bar self.pb.step(step_size) self.pb.update_idletasks() try: message, address = s.recvfrom(8192) m_split = message.split(';') if m_split[0] == '\HELLO': server_id = (m_split[1], address) # Check if the server has not yet broadcasted itself. if server_id not in list_of_servers: list_of_servers.append(server_id) except: pass # Close the socket s.close() if not list_of_servers: # If no server found, pop a warning message. tkMessageBox.showwarning("Find Servers", "No servers found. Refresh or create a new game.") # Set the progress bar back to 0 self.pb.config(value=0) # Return the whole list of available servers return list_of_servers # service the refresh button def callback_refresh(self): global SERVER_LIST self.mylist.delete(0,END) SERVER_LIST = self.listen_broadcasts(BROADCASTING_PORT, LISTENING_TIMEOUT) for server_el in SERVER_LIST: self.mylist.insert(END,(" "+str(server_el[0])+" IP: "+str(server_el[1])+" Time: "+str(time.asctime()))) def callback_choose(self): self.mylist.delete(0,END) self.button1.config(state="disabled") self.controller.show_frame("ChooseType") def callback_start(self): self.mylist.delete(0,END) self.button1.config(state="disabled") self.controller.show_frame("StartPage")