在tkinter中调整画布大小并重新绘制

我目前正在尝试在画布上显示图像。更具体地说，我想根据窗口的大小调整在画布上绘制的图像的大小（这样，图像就总是适合画布上的大小）。

我从填充整个屏幕的简单画布开始。

import tkinter as tk
from PIL import Image, ImageTk

root = tk.Tk()
WIDTH, HEIGHT = root.winfo_screenwidth(), root.winfo_screenheight()
root.geometry('%dx%d+0+0' % (WIDTH, HEIGHT))

canvas = tk.Canvas(root)
canvas.pack(fill="both", expand=True)

然后，我设置了背景图像以及可以在背景上调整大小的图像。

backgroundImage = ImageTk.PhotoImage(Image.open("filepath"))
image1 = Image.open("filepath")
image2 = ...
....
....

然后，我创建了一种调整图像大小的方法。

"""
This method resizes a image so that all the images fits on the GUI. This first creates an Image object,
but since the Image object does not allow access to the width and height of the Image object, a ImageTk
object needs to be created from the Image object. The ImageTk object cannot resize, but the Image object
can. So using ImageTk object to get the height and width and the Image object to resize, a new Image object
that is resized to fit the GUI is created.
@imageFile- the image file that is being resized
@windowMeasure- the measurement of the window to proportionally resize the image
@useHeight- determine the measurement being proportioned
"""
def resizedImageTk(image, windowMeasure, useHeight):
    imageTk = ImageTk.PhotoImage(image)
    area = windowMeasure * 4/5
    tileSize = area / 4
    if useHeight:
        proportion = tileSize / imageTk.height()
    else:
        proportion = tileSize / imageTk.width()
    resizedImage = image.resize((int(imageTk.width()*proportion), int(imageTk.height()*proportion)))
    resizedImageTk = ImageTk.PhotoImage(resizedImage)
    return resizedImageTk

然后，当窗口大小发生变化时，我使用一种方法来重新绘制已调整大小的图像，并将其绑定到根。注意：我知道这可能需要大量的计算，因此我减少了发生这种情况的次数

numResizes = 0
def handle_configure(event):
    if numResizes % 5 == 0:
        geometry = root.geometry()
        width = int(geometry[0:geometry.index("x")])
        height = int(geometry[geometry.index("x")+1:geometry.index("+")])
        canvas.create_image((0,0), image=backgroundImageTk, anchor="nw")

        if height < width:
            measurement = height
        else:
            measurement = width

        resizedImage1 = resizedImageTk(image1, measurement, height < width)
        resizedImage2 = ....
        ....
        ....

   
        images = [resizedImage1, resizedImage2, ...]
    
        imageWidth = resizedImage1.width()
        imageHeight = resizedImage1.height()
    
        i = 0
        for row in range(0, int(len(images) / 4)):
            for column in range(0, int(len(images) / 5):
                x = imageWidth*column + int(width/2) - imageWidth * 2
                y = imageHeight*row + int(height/2) - int(imageHeight*2.5)
                canvas.create_image((x, y), image=images[i])
                i=i+1
    numResizes = numResizes + 1  
root.bind("<Configure>", handle_configure)
root.mainloop()

我已经用我的图像运行了此程序，并取得了一些成功，但是，它并不能完全起作用。我的背景图像被显示，但其他图像没有显示。我不知道为什么，因为当我在嵌套的for循环（未显示图像的地方）中为画布使用create_line函数时，确实得到了显示的行。

如果有人可以对此提出建议，我将不胜感激！

谢谢

更新：

这是我正在尝试做的一个简单示例。您可以使用任何示例图像对此进行测试。

import tkinter as tk
from PIL import Image, ImageTk

root = tk.Tk()
WIDTH, HEIGHT = int(root.winfo_screenwidth() * 103/104), int(root.winfo_screenheight() * 11/12)
root.geometry('%dx%d+0+0' % (WIDTH, HEIGHT))

canvas = tk.Canvas(root)
canvas.pack(fill="both", expand=True)

testImage = Image.open("enter file path here!")
testImageTk = ImageTk.PhotoImage(testImage)

resizedTestImage = None
resizedTestImageTk = None

def handle_configure(event):
    geometry = root.geometry()
    width = int(geometry[0:geometry.index("x")])
    height = int(geometry[geometry.index("x")+1:geometry.index("+")])
    
    useHeight = height < width
    if useHeight:
        measurement = height
    else:
        measurement = width

    if useHeight:
        proportion = measurement / testImageTk.height()
    else:
        proportion = measurement / testImageTk.width()
    
    resizedTestImage = testImage.resize((int(testImageTk.width()*proportion), int(testImageTk.height()*proportion)))
    resizedTestImageTk = ImageTk.PhotoImage(resizedTestImage)
    canvas.create_image((0,0), image=resizedTestImageTk, anchor="nw")
    print("(image width, image height): (" + str(resizedTestImageTk.width()) + " " + str(resizedTestImageTk.height()) + ")")

root.bind("<Configure>", handle_configure)

root.mainloop()