pil example non blocking tkinter (snippet)

Python pil example 'non blocking tkinter'

Modules used in program:

import queue
import threading
import time
import tkinter as tk
import io, base64
import time
import tkinter
import io, base64

python non blocking tkinter

Python pil example: non blocking tkinter

import io, base64
from PIL import Image, ImageTk
import tkinter
from datetime import datetime
import time


import io, base64
from PIL import Image, ImageTk
import tkinter as tk
from datetime import datetime
import time
import threading
import queue


"""
root = tkinter.Tk()
root.withdraw()

top = tkinter.Toplevel(root, bg='red')
top2 = tkinter.Toplevel(root, bg='green')

#to display root window again
#root.iconify()
#root.deiconify()
root.mainloop()

exit()
"""
class MyCustomWindow1(tkinter.Toplevel):
    def __init__(self, root):
        tkinter.Toplevel.__init__(self)
        self['background'] = '#2b2b2b'

        print('janela')

class MyCustomWindow2(tkinter.Toplevel):
    def __init__(self, root):
        tkinter.Toplevel.__init__(self)
        self['background'] = '#ff0000'
        print('janela')
        self.thread_queue = queue.Queue()


        logo_b64 = b'''
        iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAIA
        AAAlC+aJAAAA/0lEQVR4nO3Zyw7CMAxEUdP//+W2rCqBoJA2noclS1kn9yjLeex7xKY76+
        wNS+l6KSCjXgdIqhcB8uoVgNR6OiC7ngsA1BMBmHoWAFZPASDr8QBwPRiAr0cCKPUwAKse
        AyDWAwDc+mwAvT4VoKjPA4jqkwC6+gyAtD7WSYC6fu4HDOonAB71dwE29bcATvXXAWb1Fw
        F+9VcAlvXDANf6MYBx/QDAu/4fwL7+J6BC/TmgSP0JoE79N0Cp+g9Atfp3QMH6F0DN+gNQ
        tj62WErXB2PgQNZLAb3U6wC91OsAvdTrAL3U6wC91OsAvdTrAL3U6wC91OsAvdTrAL3Uz7
        z+BNmX4gqbppsaAAAAAElFTkSuQmCC
        '''
        # Decode the PNG data & "wrap" it into a file-like object
        fh = io.BytesIO(base64.b64decode(logo_b64))

        # Create a PIL image from the PNG data
        img = Image.open(fh, mode='r')

        photo = ImageTk.PhotoImage(image=img)
        self.img= tk.Label(root, image=photo)

        self.img.image = photo
        self.img.pack()

class App(tkinter.Tk):

    def __init__(self):
        tkinter.Tk.__init__(self)
        self.win1 = MyCustomWindow1(self)
        self.win2 = MyCustomWindow2(self)
        print('a')
        #self.update_idletasks()

    def x(self, cor):
        self.win2['background'] = cor
        #self.win2['background'] = '#0000ff'

    def y(self):
        self.mainloop()

    def listen_for_result(self):
        """ Check if there is something in the queue. """

        try:
            self.res = self.thread_queue.get(0)
            self._print(self.res)
        except queue.Empty:
            self.after(100, self.listen_for_result)

class WinNotify():
    def __init__(self):
        x = threading.Thread(target=self.thread_function)
        x.start()

    def thread_function(self):
        self.app = App()
        self.app.mainloop()

    def mudarCor(self, cor):
        self.app.x(cor)


a = WinNotify()

cnt = 0
while True:
    time.sleep(3)
    print(cnt)
    if cnt == 0:
        a.mudarCor('#0000ff')
    elif cnt == 1:
        a.mudarCor('#00ff00')
    elif cnt == 2:
        a.mudarCor('#ff0000')
    elif cnt == 4:
        a.mudarCor('#ffaaaa')
    else:
        a.mudarCor('#aaaaaa')

    cnt += 1
    pass
print('depois')

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