#!/usr/bin/env python3
# written for Python 3
import tkinter as tk
from tkinter.font import Font
from relay_control import RelayBoards, RelayBoard
relay_boards = RelayBoards(1, 0x20, 0x23)
class Application(tk.Frame):
def __init__(self, master=None):
super().__init__(master)
self.master = master
self.pack()
self.font = Font(size=30)
self.buttons = {}
for row in range(len(relay_boards)):
for col in range(RelayBoard.n_relays):
button = tk.Button(self, text='Rele {}-{}'.format(row+1, col+1),
command=lambda row=row, col=col: self.click_relay_button(row, col),
font=self.font,
)
button.grid(row=col, column=row)
self.buttons[(row, col)] = button
self.colorize_relay_button(row, col)
def click_relay_button(self, row, col):
r = relay_boards[row]
r.flip(col)
self.colorize_relay_button(row, col)
def colorize_relay_button(self, row, col):
r = relay_boards[row]
button = self.buttons[(row, col)]
color = 'green' if r.is_on(col) else 'red'
button.configure(bg=color, activebackground=color)
if __name__ == '__main__':
root = tk.Tk()
app = Application(master=root)
app.mainloop()
