viewer2.py

viewer2.py

from Tkinter import *
from PIL import Image, ImageTk
import glob


# https://stackoverflow.com/questions/17351524/tkinter-pil-resize-an-image-to-fit-a-label

class MyWindow(object):
    def __init__(self):
        self.image = None
        self.root = Tk()
        self.i = 0
        self.files = glob.glob('./*.png') + glob.glob('./*.jpg') + glob.glob('./*.jpeg')

        #self.left = Button(self.root, text="Left", command=self.lclick)
        #self.right = Button(self.root, text="Right", command=self.rclick)

        self.scale = Scale(self.root, from_ = 0, to = len(self.files) - 1, orient=HORIZONTAL, command=self.change, length=500)
        self.display = Canvas(self.root, width=500, height=500)

        #self.left.pack()
        #self.right.pack()
        self.scale.pack()
        self.display.pack()

        self.update()

        self.root.mainloop()

    def change(self, index):
        self.i = int(index)
        self.update()

    def lclick(self):
        self.i = self.i + 1
        if self.i >= len(self.files):
            self.i = 0
        self.update()

    def rclick(self):
        self.i = self.i - 1
        if self.i <= 0:
            self.i = len(self.files) - 1
        self.update()

    def update(self):
        if self.image:
            #self.label.destroy()
            self.display.delete("IMG")

        #self.photo = PhotoImage(file=self.files[self.i])
        self.original = Image.open(self.files[self.i])
        resized = self.original.resize((self.original.size[0] * 500 / self.original.size[1], 500), Image.ANTIALIAS)
        self.image = ImageTk.PhotoImage(resized)
        self.display.create_image(0, 0, image=self.image, anchor=NW, tags="IMG")
        #self.label = Label(self.frame, image=self.photo, width=500, height=500)
        #self.label.pack();

m = MyWindow()