如何停止調整Tkinter Message小部件？

Question

我正在創建三個「消息小部件」，但它們似乎根據裏面的內容在寬度和高度上進行了調整，是否有可能防止出現這種情況？

from tkinter import * 

root = Tk() 
root.configure(background = 'Yellow') 
root.geometry('500x400') 

a = '{}'.format('The Elepthan is Big') 
b = '{}'.format('The Bird') 
c = '{}'.format('The Lion is big and ferocious, kills any animal') 

msg = Message(root, text = a, width=300, justify='left') 
msg.config(bg='lightgreen',relief=RIDGE, font=('times', 9), pady=-2, borderwidth=3) 
msg.pack() 


msg = Message(root, text = b, width=300, justify='left') 
msg.config(bg='lightgreen',relief=RIDGE, font=('times', 9), pady=-2, borderwidth=3) 
msg.pack() 

msg = Message(root, text = c, width=300, justify='left') 
msg.config(bg='lightgreen',relief=RIDGE, font=('times', 9), pady=-2, borderwidth=3) 
msg.pack() 




root.mainloop() 

Answer 1

UPDATE：

您有幾種選擇在這裏，但根據您的評論widgets resize according to their content, I want them all with same width我會給，使用pack()幾何管理器最適合您的需要的例子。

用於包裝至少是最簡單的選擇是做pack(fill = BOTH)

做你想做什麼的最快方法是使用框架。該框架將調整爲最大的文本，並且在所有消息窗口小部件上使用pack(fill = BOTH)會將較小的窗口展開爲也是最大窗口小部件大小的框架大小。

from tkinter import * 

root = Tk() 
root.configure(background = 'Yellow') 
root.geometry('500x400') 

a = '{}'.format('The Elepthan is Big') 
b = '{}'.format('The Bird') 
c = '{}'.format('The Lion is big and ferocious, kills any animal') 

frame = Frame(root) 
frame.pack() 

msg = Message(frame, text = a, width=300, justify='left') 
msg.config(bg='lightgreen',relief=RIDGE, font=('times', 9), pady=-2, borderwidth=3) 
msg.pack(fill=BOTH) 


msg = Message(frame, text = b, width=300, justify='left') 
msg.config(bg='lightgreen',relief=RIDGE, font=('times', 9), pady=-2, borderwidth=3) 
msg.pack(fill=BOTH) 

msg = Message(frame, text = c, width=300, justify='left') 
msg.config(bg='lightgreen',relief=RIDGE, font=('times', 9), pady=-2, borderwidth=3) 
msg.pack(fill=BOTH) 

root.mainloop() 

Answer 2

您可以找到最長的消息的寬度，然後使用Message widget的padx選項中心所有的人都該長度值的範圍內做到這一點。這裏有一個例子：

from tkinter import * 
import tkinter.font as tkFont 

root = Tk() 
root.configure(background='Yellow') 
root.geometry('500x400') 

a = 'The Elepthan is Big' 
b = 'The Bird' 
c = 'The Lion is big and ferocious, kills any animal' 
messages = a, b, c 

msgfont = tkFont.Font(family='times', size=9) 
maxwidth = max(msgfont.measure(text) for text in messages) # get pixel width of longest one 

for text in messages: 
    msg = Message(root, text=text, width=maxwidth, justify='left') 
    padx = (maxwidth-msgfont.measure(text)) // 2 # padding needed to center text 
    msg.config(bg='lightgreen', relief=RIDGE, font=msgfont, padx=padx, pady=-2, borderwidth=3) 
    msg.pack() 

root.mainloop() 

結果：