# Tk_animate_gif.py

# Tk_animate_gif.py # https://media.giphy.com/media/UuYo0xOTHOvTDEkRdv/giphy.gif

from Tkinter import *
from PIL import Image, ImageTk
from tkFileDialog import askopenfilename
import time
import os
root = Tk()

xx = 600
yy = 600
canvas = Canvas(root, width=xx, height=yy)
canvas.grid()

filename = askopenfilename(filetypes=[('gif files', '.gif')]) # needs to be placed after pack()

img_data = Image.open(filename)
# print list(img_data.getdata().convert('RGB')) # ... or RGBA

ww,hh = img_data.size
img = Image.new("RGB",(ww,hh))
seq = []

label = Label(root, image=None)
label.grid(row=0, column=0)

try:
    while 1:
        seq.append(img_data.copy())
        img_data.seek(len(seq)) # skip to next frame
except EOFError:
    pass # task done

L = len(seq)
print 'number of frames:',L
try:
    delay = img_data.info['duration']
except KeyError:
    delay = 100
print 'ms delay:',delay

frames = []
for image in seq:
    frame = image.convert('RGBA')
    frames.append(ImageTk.PhotoImage(frame))

def play(i):
    label.configure(image=frames[i])
    label.update()
    i += 1
    if i == L:
        i = 0
    root.after(delay, play, i)
root.after(0, play, 0)
root.mainloop()

# canvas.delete('gif'+str(p)) will most likely cause too much flickering...
# ... or without... might significantly keep reducing the process speed
'''
L = len(frames)
buffer = 0
while 1:
    if time.time() > ta:
        ta = time.time()+1.5
        p = buffer
        buffer = (1,0)[buffer]
        canvas.create_image(1, 1, anchor=NW, image=frames[i%L], tag='gif'+str(buffer))
        canvas.delete('gif'+str(p))
    i = (i+1)%L
    canvas.create_image(1, 1, anchor=NW, image=frames[i%L], tag='gif'+str(buffer))
    canvas.update()
    while time.time() < tb:
        pass
    tb = time.time()+0.01
'''