如何在同一窗口上显示所选目录？

Question

这是我当前的Python代码：

from tkinter import *
import glob
import os


root = Tk()
root.title("SIGN OFF")
root.minsize(840, 800)



# Add a grid
mainframe = Frame(root)
mainframe.grid(column=0,row=0, sticky=(N,W,E,S) )
mainframe.columnconfigure(0, weight = 1)
mainframe.rowconfigure(0, weight = 1)
mainframe.pack(pady = 100, padx = 100)

# Create a Tkinter variable
tkvar = StringVar(root)

# Dictionary with options
options = glob.glob("C:/Users/eduards/Desktop/[![enter image description here][1]][1]work/data/to-do/*.jpg*")
choices = {*options}
tkvar.set('...To Sign Off...') # set the default option

popupMenu = OptionMenu(mainframe, tkvar, *choices)
Label(mainframe, text="Choose your sign off here:").grid(row = 1, column = 1)
popupMenu.grid(row = 2, column =1)

# on change dropdown value
def change_dropdown(*args):
    directory = (tkvar.get())
    os.startfile(directory)

def open():
    img = change_dropdown()
    photo = ImageTK.PhotoImage(img)

    root.label2 = Label(image=photo)
    root.label2.image = photo
    root.label2.grid(column = 3 , row = 5)

Button(mainframe, text="Open", command = change_dropdown).grid(row = 3, column = 1)



root.mainloop()

这是输出：

当我选择图像上所示的目录时，单击“确定”时，它将在单独的窗口中打开图像。如何在同一窗口的侧面打开它？喜欢，预览某种东西？

Answer 1

我不确定我是否完全理解您的问题-并认为您真正想做的是在同一窗口（而非目录）中显示选择的图像。您当前的代码正在单独的窗口中打开图像，因为它在os.startfile()回调函数中通过change_dropdown()调用显示了该图像，该函数将打开与系统上的.jpg文件关联的任何应用程序-在我的系统上恰好是Windows Photo Viewer。

无论如何，这是我认为至少可以完成您要完成的工作的基本代码的代码：

import glob
import os
from PIL import Image, ImageTk
import tkinter as tk

root = tk.Tk()
root.title("SIGN OFF")
root.minsize(840, 800)

# Add a grid
mainframe = tk.Frame(root)
mainframe.columnconfigure(0, weight=1)
mainframe.rowconfigure(0, weight=1)
mainframe.pack(pady=100, padx=100)

# Create a Tkinter variable
tkvar = tk.StringVar(root)

directory = "C:/Users/eduards/Desktop/work/data/to-do"
choices = glob.glob(os.path.join(directory, "*.jpg"))
tkvar.set('...To Sign Off...') # set the default option

popupMenu = tk.OptionMenu(mainframe, tkvar, *choices)
tk.Label(mainframe, text="Choose your sign off here:").grid(row=1, column=1)
popupMenu.grid(row=2, column=1)

label2 = tk.Label(mainframe, image=None)
label2.grid(row=4, column=1)

# On change dropdown callback.
def change_dropdown(*args):
    """ Updates label2 image. """
    imgpath = tkvar.get()
    img = Image.open(imgpath)
    photo = ImageTk.PhotoImage(img)
    label2.image = photo
    label2.configure(image=photo)

tk.Button(mainframe, text="Open", command=change_dropdown).grid(row=3, column=1)

root.mainloop()

这是我从下拉列表OptionMenu中选择一个图像，然后单击 Open Button后在我的系统上运行的屏幕快照：