Tkinter将图像放入框架，背景

Question

屏幕：

首先，我的Frame的白色背景有问题，因为它的扩展范围超出了LabelFrame。其次，我希望图像位于框架的中间。

img = ImageTk.PhotoImage(Image.open(filename))
panel.image = img
panel.configure(image=img)

ImageFrame = LabelFrame(page1, text="Podgląd", height=200, width=300, background='white')
ImageFrame.grid(row=0, column=3, pady=10, padx=5)
panel = Label(ImageFrame)
panel.grid(row=0, column=0, sticky='NESW')
ImageFrame.grid_propagate(0)

Answer 1

LabelFrame包含标签，并且您给它指定了bg颜色“白色”。如果只希望内部为白色，则可以通过在Frame中插入新的bg='white'来实现，然后将图像放在此处。

然后；要将图像放置在中间，您必须告诉grid()扩展单元格以用columnconfigure()和rowconfigure()填充可用区域。请参阅下面的示例：

from tkinter import *

page1 = Tk()

ImageFrame = LabelFrame(page1, text="Podgląd", height=200, width=300)
ImageFrame.grid(row=0, column=3, pady=10, padx=5)
ImageFrame.grid_propagate(0)            # Stops geometry propagation
ImageFrame.columnconfigure(0, weight=1) # Expands cell to fill available space
ImageFrame.rowconfigure(0, weight=1)    # --- " ---

whiteframe = Frame(ImageFrame, bg='white')  # For white background
whiteframe.grid(row=0, column=0, sticky='nsew', padx=5, pady=5)
whiteframe.columnconfigure(0, weight=1) # Expands cell to fill available space
whiteframe.rowconfigure(0, weight=1)    # --- " ---

img = PhotoImage(file='images/beer.png')
panel = Label(whiteframe, image=img)
panel.image = img
panel.grid(row=0, column=0)

page1.mainloop()