# Tk_quasi_colors.py

# Tk_quasi_colors.py

from tkinter import *
from PIL import Image, ImageTk
import math

ww = 256
hh = 256

root = Tk()
root.geometry("%dx%d+0+0"%(ww,hh))
canvas = Canvas(root, width=ww, height=hh)
canvas.pack()

seq = 1 # sequences

t = range(14)
ttt = []
for r in t:
    for g in t:
        for b in t:
            ttt += [(r,g,b)]
ttt = sorted(ttt, key=sum)
ttt.pop(0)
Lt = len(ttt)

cc = {}
for x in range(ww):
    for y in range(hh):
        cc[x,y] = 0

xy = []
x2 = 256.0/ww
y2 = 256.0/hh
for y in range(hh):
    b = int(y*y2)
    for x in range(ww):
        a = int(x*x2)
        c = cc[a,b]
        xy += [(a,b,c)]
        cc[a,b] = c+1
xy2 = xy[:]

del cc # cc deleted

img = Image.new("RGB",(ww,hh), "white")

def draw():
    img.putdata(xy)
    imgTk = ImageTk.PhotoImage(img)
    canvas.create_image(0, 0, anchor=NW, image=imgTk)
    canvas.update()
draw()

o = [i for i in range(255)]
o = o[1:-1] + o[::-1]
L = len(o)
def make_rgb():
    return (o[int(r%L)],o[int(g%L)],o[int(b%L)])

i = 0
while 1:
    print (seq)
    seq += 1
    for k, (rrr,ggg,bbb) in enumerate(xy2):
        r2,g2,b2 = ttt[0]
        ttt.insert(Lt-i, ttt.pop(0))
        i = (i-1)%3
        r,g,b = (rrr+r2,ggg+g2,bbb+b2)
        xy2[k] = r,g,b
        rgb = make_rgb()
        xy[k] = rgb
    draw()