如何动态调整 Tkinter 中按钮文字的大小？
原文:https://www . geesforgeks . org/如何动态调整大小-按钮-文本-in-tkinter/
先决条件:Python GUI–Tkinter、使用 Tkinter 调整窗口大小时动态调整按钮大小
在本文中，我们将看到如何使按钮文本大小动态。动态意味着每当按钮大小改变时，按钮文本大小也会改变。在 Tkinter 中没有内置的功能，可以动态改变按钮文本的大小。
进场:
- 创建按钮并将粘性设置为所有方向
- 设置绑定，绑定会做什么，每当按钮大小改变时，它会调用我们稍后创建的调整大小函数。
- 在调整大小功能里面，我们会有不同的条件，取决于主窗口的几何/大小。
- 设置行和列配置
让我们用分步实现来理解:
步骤 1: 创建一个正常的 Tkit 窗口。
Python 3
# Import module
from tkinter import *
# Create object
root = Tk()
# Adjust size
root.geometry("400x400")
# Execute tkinter
root.mainloop()
输出:
步骤 2: 在主窗口内创建一个按钮。
Python 3
# Import module
from tkinter import *
# Create object
root = Tk()
# Adjust size
root.geometry("400x400")
# Create Buttons
button_1 = Button(root , text = "Button 1")
# Set grid
button_1.grid(row = 0,column = 0)
# Execute tkinter
root.mainloop()
输出:
第 3 步:调整按钮文本大小
在调整大小功能中，“e”值将告诉主窗口的宽度和高度。
Python 3
# resize button text size
def resize(e):
# get window width
size = e.width/10
# define text size on different condition
# if window height is greater
# than 300 and less than 400 (set font size 40)
if e.height <= 400 and e.height > 300:
button_1.config(font = ("Helvetica", 40))
# if window height is greater than
# 200 and less than 300 (set font size 30)
elif e.height < 300 and e.height > 200:
button_1.config(font = ("Helvetica", 30))
# if window height is less than 200 (set font size 40)
elif e.height < 200:
button_1.config(font = ("Helvetica", 40))
以下是完整实现:
Python 3
# Import module
from tkinter import *
# Create object
root = Tk()
# Adjust size
root.geometry("400x400")
# Specify Grid
Grid.columnconfigure(root, index = 0,
weight = 1)
Grid.rowconfigure(root, 0,
weight = 1)
# Create Buttons
button_1 = Button(root, text = "Button 1")
# Set grid
button_1.grid(row = 0,
column = 0, sticky = "NSEW")
# resize button text size
def resize(e):
# get window width
size = e.width/10
# define text size on different condition
# if window height is greater
# than 300 and less than 400 (set font size 40)
if e.height <= 400 and e.height > 300:
button_1.config(font = ("Helvetica", 40))
# if window height is greater than
# 200 and less than 300 (set font size 30)
elif e.height < 300 and e.height > 200:
button_1.config(font = ("Helvetica", 30))
# if window height is less
# than 200 (set font size 40)
elif e.height < 200:
button_1.config(font = ("Helvetica", 40))
# it will call resize function
# when window size will change
root.bind('<Configure>', resize)
# Execute tkinter
root.mainloop()
输出:
[https://media.geeksforgeeks.org/wp-content/uploads/20201127121521/FreeOnlineScreenRecorderProject3.mp4](https://media.geeksforgeeks.org/wp-content/uploads/20201127121521/FreeOnlineScreenRecorderProject3.mp4)版权属于：月萌API www.moonapi.com，转载请注明出处
