#!/usr/bin/python3 

#Displays a loop of all image files found by gather_files.py.  Run that script first to populate your image db file.  See README for python dependency installation hints.

import tkinter as tk
from PIL import ImageTk, Image
import os, random, time


#Loop through a new image every 4 seconds.
def update_image():
  path = "screen.jpg"
  try:
    img = ImageTk.PhotoImage(Image.open(path).resize((800, 480))) 
  #Issue with image file, try another.
  except Exception as e:
    print("Error: " + str(e))
    path = get_random_file()
    img = ImageTk.PhotoImage(Image.open(path).resize((800, 480))) 
  panel.configure(image=img)
  panel.image = img
  window.after(100, update_image)
  return

path = "screen.jpg"
window = tk.Tk()
#window.attributes("-fullscreen",True)
window.title("Photo Gallery")
window.geometry("800x480")
window.configure(background='black')
#Load an initial image onto the Label.
try:
  img = ImageTk.PhotoImage(Image.open(path).resize((800, 480))) 
#Issue with image file, try another.
except Exception as e:
  print("Error: " + str(e))
  path = "screen.jpg"
  img = ImageTk.PhotoImage(Image.open(path).resize((800, 480))) 
panel = tk.Label(window, image=img)
panel.pack(side="bottom", fill="both", expand="yes")

update_image()
window.mainloop()