from Tkinter import *
from i2c import *

RANDOM_READ_BYTE = 1000
RANDOM_WRITE_BYTE = 2000
r = Tk()
V = IntVar()
e1, e2 = Entry(r), Entry(r)
e1.grid(row=0, column=1)
e2.grid(row=1, column=1)

def button_callback():
	addr = int(e1.get())
	cmd = V.get()
	if (cmd == RANDOM_READ_BYTE):
		data = read_data(addr)
		if data <> -1:
			e2.delete(0,END)
			e2.insert(0, str(data))
	elif (cmd == RANDOM_WRITE_BYTE):
		data = int(e2.get())
		write_data(addr, data)

Label(r, text='Address').grid(row=0, column=0)
Label(r, text='Data').grid(row=1,column=0)
r1 = Radiobutton(r, text='Write', variable=V, value=RANDOM_WRITE_BYTE)
r1.grid(row=2, column=0, columnspan=2, sticky=W)
r2 = Radiobutton(r, text='Read', variable=V, value=RANDOM_READ_BYTE)
r2.grid(row=3, column=0, columnspan=2, sticky=W)
b = Button(text='OK', command=button_callback)
b.grid(row=4, column=0, columnspan=2, sticky=E)
enable_io()
r.mainloop()