TSL 3.1 / Python Efficient Code Example

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#!/usr/bin/env python3

from socket import AF_INET, socket, SOCK_STREAM
import tkinter as tk
from threading import Thread
import binascii

defaultWindowName = 'TSL3.1 Client'
color_Background = '#4d4d4d'
color_Black = '#000000'
color_White = '#ffffff'
color_Red = '#FF0000'
color_Green = '#00FF00'
color_Amber = '#FFFF00'
color_Blue = '#0000FF'

off = 0
red = 1
green = 2
amber = 4
blue = 8

client_socket = None  # Initialize as None

def set_black():
    isRotate.set(0)
    send(off)
    btn_RED.configure(bg=color_Background, fg=color_White)
    btn_GREEN.configure(bg=color_Background, fg=color_White)
    btn_AMBER.configure(bg=color_Background, fg=color_White)
    btn_BLUE.configure(bg=color_Background, fg=color_White)

def set_red():
    send(red)
    btn_RED.configure(bg=color_Red, fg=color_White)
    btn_GREEN.configure(bg=color_Background, fg=color_White)
    btn_AMBER.configure(bg=color_Background, fg=color_White)
    btn_BLUE.configure(bg=color_Background, fg=color_White)

def set_green():
    send(green)
    btn_RED.configure(bg=color_Background, fg=color_White)
    btn_GREEN.configure(bg=color_Green, fg=color_Black)
    btn_AMBER.configure(bg=color_Background, fg=color_White)
    btn_BLUE.configure(bg=color_Background, fg=color_White)

def set_amber():
    send(amber)
    btn_RED.configure(bg=color_Background, fg=color_White)
    btn_GREEN.configure(bg=color_Background, fg=color_White)
    btn_AMBER.configure(bg=color_Amber, fg=color_Black)
    btn_BLUE.configure(bg=color_Background, fg=color_White)

def set_blue():
    send(blue)
    btn_RED.configure(bg=color_Background, fg=color_White)
    btn_GREEN.configure(bg=color_Background, fg=color_White)
    btn_AMBER.configure(bg=color_Background, fg=color_White)
    btn_BLUE.configure(bg=color_Blue, fg=color_White)

def manage_connection():
    if connection_status.get() == 0:
        socket_thread = Thread(target=open_connection)
        socket_thread.start()
    elif connection_status.get() == 1:
        close_connection()

def open_connection():
    global client_socket
    host = str(textBox_IP.get())

if host:
        try:
            port = int(textBox_PORT.get())
            addr = (host, port)
            client_socket = socket(AF_INET, SOCK_STREAM)
            client_socket.settimeout(5)
            client_socket.connect(addr)
            when_connected()
            sent_message.set('')
            connection_status.set(1)
        except Exception as ex:
            print(ex)
            textBox_IP.configure(bg=color_Red)
            textBox_PORT.configure(bg=color_Red)
            sent_message.set('')
            connection_status.set(0)
            when_disconnected()

def close_connection():
    global client_socket
    set_black()
    try:
        if client_socket:
            client_socket.close()
    except:
        pass
    client_socket = None
    when_disconnected()
    sent_message.set('')
    connection_status.set(0)

def send(color):
    global client_socket
    header = 128
    brightness = brightness_value.get()
    try:
        if not textBox_DisplayID.get():
            textBox_DisplayID.insert(0, 0)
        index = max(0, min(255, int(textBox_DisplayID.get())))
        umd = str(textBox_UMD.get())
        label_to_send = ("{:<16}".format(umd))[:16]

message = bytearray([header + index, min(255, brightness + color)]) + label_to_send.encode()
        hex_message = (binascii.hexlify(message)).decode()
        sent_message.set('TSL: ' + hex_message)
        textBox_DisplayID.configure(bg=color_Black)

if client_socket:
            client_socket.send(message)
        else:
            raise ConnectionError("Socket not connected")

except Exception as ex:
        print(ex)
        textBox_DisplayID.configure(bg=color_Red)
        close_connection()

def when_connected():
    textBox_IP.configure(state=tk.DISABLED, disabledbackground=color_Background)
    textBox_PORT.configure(state=tk.DISABLED, disabledbackground=color_Background)
    label_connect.set('Disconnect')
    btn_OFF.configure(state=tk.NORMAL)
    btn_RED.configure(state=tk.NORMAL)
    btn_GREEN.configure(state=tk.NORMAL)
    btn_AMBER.configure(state=tk.NORMAL)
    btn_BLUE.configure(state=tk.NORMAL)

def when_disconnected():
    textBox_IP.configure(state=tk.NORMAL)
    textBox_PORT.configure(state=tk.NORMAL)
    label_connect.set('Connect')
    btn_OFF.configure(state=tk.DISABLED)
    btn_RED.configure(state=tk.DISABLED)
    btn_GREEN.configure(state=tk.DISABLED)
    btn_AMBER.configure(state=tk.DISABLED)
    btn_BLUE.configure(state=tk.DISABLED)

main_window = tk.Tk()
main_window.geometry('280x320')
main_window.resizable(False, False)
main_window.title(defaultWindowName)
main_window['background'] = color_Background
main_window.eval('tk::PlaceWindow . center')  # Center the window

brightness_value = tk.IntVar()
connection_status = tk.IntVar()
label_connect = tk.StringVar()
sent_message = tk.StringVar()
isRotate = tk.IntVar()

# Insert default values
textBox_IP = tk.Entry(main_window, width=15, bg=color_Black, fg=color_White)
textBox_IP.grid(row=3, column=2, columnspan=4, padx=1, pady=1, sticky=tk.EW)
textBox_IP.insert(0, '127.0.0.1')

textBox_PORT = tk.Entry(main_window, width=15, bg=color_Black, fg=color_White)
textBox_PORT.grid(row=4, column=2, columnspan=4, padx=1, pady=1, sticky=tk.EW)
textBox_PORT.insert(0, '8900')

textBox_DisplayID = tk.Entry(main_window, width=15, bg=color_Black, fg=color_White)
textBox_DisplayID.grid(row=5, column=2, columnspan=4, padx=1, pady=1, sticky=tk.EW)
textBox_DisplayID.insert(0, '0')

textBox_UMD = tk.Entry(main_window, width=15, bg=color_Black, fg=color_White)
textBox_UMD.grid(row=6, column=2, columnspan=4, padx=1, pady=1, sticky=tk.EW)

# GUI layout components
tk.Frame(main_window, bg=color_Background, height=7).grid(row=0, column=0, columnspan=7, sticky='nsew')
tk.Frame(main_window, bg=color_Background, height=7).grid(row=2, column=0, columnspan=7, sticky='nsew')
tk.Frame(main_window, bg=color_Background, height=7).grid(row=15, column=0, columnspan=8, sticky='nsew')
tk.Frame(main_window, bg=color_Background, width=14).grid(row=0, column=0, rowspan=15, sticky='nsew')
tk.Frame(main_window, bg=color_Background, width=14).grid(row=0, column=7, rowspan=15, sticky='nsew')

tk.Label(main_window, text='TCP/IP: ', width=15, bg=color_Background, fg=color_White, anchor=tk.E).grid(row=3, column=1, padx=2, sticky=tk.EW)
tk.Label(main_window, text='TCP/PORT: ', width=15, bg=color_Background, fg=color_White, anchor=tk.E).grid(row=4, column=1, padx=2, sticky=tk.EW)
tk.Label(main_window, text='Display ID: ', width=15, bg=color_Background, fg=color_White, anchor=tk.E).grid(row=5, column=1, padx=2, sticky=tk.EW)
tk.Label(main_window, text='Label: ', width=15, bg=color_Background, fg=color_White, anchor=tk.E).grid(row=6, column=1, padx=2, sticky=tk.EW)
tk.Label(main_window, text='Brightness: ', width=15, bg=color_Background, fg=color_White, anchor=tk.E).grid(row=7, column=1, padx=2, sticky=tk.EW)

for i, val in enumerate([0, 16, 32, 48]):
    tk.Radiobutton(
        main_window, text=str(i), variable=brightness_value, value=val,
        bg=color_Background, fg=color_White,
        activebackground=color_Background,
        activeforeground=color_White,
        selectcolor=color_Black
    ).grid(row=7, column=2 + i, sticky=tk.EW)

btn_connect = tk.Button(main_window, textvariable=label_connect, width=14, bg=color_Background, fg=color_White,
                        anchor=tk.CENTER, command=manage_connection)
btn_connect.grid(row=8, column=1, columnspan=5, sticky=tk.EW)

btn_OFF = tk.Button(main_window, text='Off', width=15, bg=color_Background, fg=color_White, anchor=tk.CENTER, command=set_black)
btn_OFF.grid(row=9, column=1, columnspan=5, pady=1, sticky=tk.EW)

btn_RED = tk.Button(main_window, text='Red', width=15, bg=color_Background, fg=color_White, anchor=tk.CENTER, command=set_red)
btn_RED.grid(row=10, column=1, columnspan=5, pady=1, sticky=tk.EW)

btn_GREEN = tk.Button(main_window, text='Green', width=15, bg=color_Background, fg=color_White, anchor=tk.CENTER, command=set_green)
btn_GREEN.grid(row=11, column=1, columnspan=5, pady=1, sticky=tk.EW)

btn_AMBER = tk.Button(main_window, text='Amber', width=15, bg=color_Background, fg=color_White, anchor=tk.CENTER, command=set_amber)
btn_AMBER.grid(row=12, column=1, columnspan=5, pady=1, sticky=tk.EW)

btn_BLUE = tk.Button(main_window, text='Blue', width=15, bg=color_Background, fg=color_White, anchor=tk.CENTER, command=set_blue)
btn_BLUE.grid(row=13, column=1, columnspan=5, pady=1, sticky=tk.EW)

tk.Label(main_window, textvariable=sent_message, width=10, bg=color_Background, fg=color_White, anchor=tk.W).grid(row=14, column=1, columnspan=6, sticky=tk.EW)

# Final setup
brightness_value.set(48)
sent_message.set('')
when_disconnected()
main_window.mainloop()

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