I am trying to configure a label in my window with the result of an iteration that produces the range of hexadecimal colour codes from #000000 to #FFFFFF so that the label’s background colour fades through all the possible colors between #000000 and #FFFFFF with a fraction of a second interval but it doesn’t seem to complete the loop before stating at #000000 again.
I have used the the print method to display the colour code being deployed with every loop and it doesn’t seem to be restarting as the display does.
from time import *
from time import sleep
from tkinter import *
def changing_color():
global color
while True:
for i in range(0, 2**24):
r = format(i, "02x")
for j in range(0, 255):
g = format(j, "02x")
for k in range(0, 255):
b = format(k, "02x")
color = "#"+r+g+b
print(color)
date_label.config(bg=color)
day_label.config(bg=color)
window.update()
sleep(0.01)
def update_frame1():
day_string = strftime("%A")
day_label.config(text=day_string)
date_string = strftime("%d, %B %Y")
date_label.config(text=date_string)
frame1.after(1000, update_frame1)
def update_frame2():
time_string = strftime("%I:%M:%S:%p")
time_label.config(text=time_string)
frame2.after(1000, update_frame2)
window = Tk()
window.title("RO'Clock")
color = ""
frame1 = Frame(window)
frame1.pack(expand=True, fill="both")
frame2 = Frame(window)
frame2.pack(expand=True, fill="both")
date_label = Label(frame1, font=("Ink Free", 20))
date_label.pack(expand=True, fill="both")
day_label = Label(frame1, font=("Ink Free", 15))
day_label.pack(expand=True, fill="both")
time_label = Label(frame2, font=("Consolas", 30), fg="#00FF00", bg="black")
time_label.pack(expand=True, fill="both")
update_frame2()
update_frame1()
changing_color()
window.mainloop()
I cleaned your imports and translated it into an OOP approach for better readability and also to get rid of global variables. Your endless loop is now a recursive function using after and incrementing the color values each cycle.
from tkinter import Tk, Frame, Label
from time import strftime
class RoClock(Tk):
def __init__(self):
super().__init__()
self.title("RO'Clock")
self.color = ""
self.frame1 = Frame(self)
self.frame1.pack(expand=True, fill="both")
self.frame2 = Frame(self)
self.frame2.pack(expand=True, fill="both")
self.date_label = Label(self.frame1, font=("Ink Free", 20))
self.date_label.pack(expand=True, fill="both")
self.day_label = Label(self.frame1, font=("Ink Free", 15))
self.day_label.pack(expand=True, fill="both")
self.time_label = Label(self.frame2, font=("Consolas", 30), fg="#00FF00", bg="black")
self.time_label.pack(expand=True, fill="both")
self.update_frame2()
self.update_frame1()
self.changing_color(0, 0, 0) # passing starting values
def changing_color(self, k, j, i): # new recursive function using after instead of endless while loop
if k == 256:
k = 0
j += 1
if j == 256:
j = 0
i += 1
if i == 256:
i = 0
r = format(i, "02x")
g = format(j, "02x")
b = format(k, "02x")
color = "#"+r+g+b
print(color)
self.date_label.config(bg=color)
self.day_label.config(bg=color)
self.after(1, self.changing_color, k+1, j, i)
def update_frame1(self):
day_string = strftime("%A")
self.day_label.config(text=day_string)
date_string = strftime("%d, %B %Y")
self.date_label.config(text=date_string)
self.frame1.after(1000, self.update_frame1)
def update_frame2(self):
time_string = strftime("%I:%M:%S:%p")
self.time_label.config(text=time_string)
self.frame2.after(1000, self.update_frame2)
r = RoClock()
r.mainloop()
While this is working it is not pretty! To get rid of the flickering you have to rethink how you calculate your colors to get colors of equal brightness!