是否可以使上传的照片在kinter中相对?

Question

作为问题，是否有可能上传照片并使其相对?我试图将图像上传到我的GUI，但它不是相对的，所以当你最大化窗口时，不幸的是它的大小有问题。

我想在窗口调整大小时动态改变图像大小

一些示例代码:

import tkinter as tk
from PIL import ImageTk, Image
HEIGHT, WIDTH = 640, 700
root = tk.Tk()
canvas0 = tk.Canvas(height=HEIGHT, width=WIDTH)
canvas0.pack()
canvas = tk.Canvas(bg='black')
canvas.place(relx=0, rely=0, relheight=1, relwidth=1)
frame = tk.Frame(canvas, bg='#009900')
frame.place(relx=0.12, y=2, rely=0, relwidth=0.75, relheight=1)
column_1_img = Image.open('column.png')
column_1_img = ImageTk.PhotoImage(column_1_img)
column_label_1 = tk.Label(canvas, image=column_1_img)
column_label_1.image = column_1_img
column_label_1.place(relheight=1, relwidth=0.2)
root.mainloop()

这段代码产生如下输出:不是全屏全屏

我想要一个图像自动调整到标签的大小，所以你有一些想法如何?

Answer 1

将<Configure>绑定到事件处理程序，并使用PIL的resize方法来调整图像的大小。

下面是一个例子:

import tkinter as tk
from PIL import ImageTk, Image
def resize_image(event):
column_label_1.resized = ImageTk.PhotoImage(column_1_img.resize((event.width, event.height), resample = Image.NEAREST))
column_label_1['image'] = column_label_1.resized
HEIGHT, WIDTH = 640, 700
root = tk.Tk()
canvas0 = tk.Canvas(height=HEIGHT, width=WIDTH)
canvas0.pack()
canvas = tk.Canvas(bg='black')
canvas.place(relx=0, rely=0, relheight=1, relwidth=1)
frame = tk.Frame(canvas, bg='#009900')
frame.place(relx=0.12, y=2, rely=0, relwidth=0.75, relheight=1)
column_1_img = Image.open(r'img_path')
column_img = ImageTk.PhotoImage(column_1_img)
column_label_1 = tk.Label(canvas, image=column_img)
column_label_1.image = column_1_img
column_label_1.place(relheight=1, relwidth=0.2)
column_label_1.bind('<Configure>', resize_image)
root.mainloop()