Tkinter如何在B1-Motion超出小部件时禁用滚动

import tkinter as tk

def disable_scroll(event):
    # 获取鼠标当前位置
    x, y = event.x, event.y
    
    # 获取文本框的边界
    bbox = text.bbox("end")
    if bbox is not None:
        x1, y1, x2, y2 = bbox
        
        # 检查鼠标是否超出文本框的边界
        if x < x1 or x > x2 or y < y1 or y > y2:
            # 禁用滚动条
            scroll.config(command=None)
        else:
            # 启用滚动条
            scroll.config(command=text.yview)

root = tk.Tk()

# 创建滚动条控件
scroll = tk.Scrollbar(root)
scroll.pack(side=tk.RIGHT, fill=tk.Y)

# 创建文本框
text = tk.Text(root, yscrollcommand=scroll.set)
text.pack(side=tk.LEFT, fill=tk.BOTH)

# 将滚动条与文本框关联
scroll.config(command=text.yview)

# 绑定B1-Motion事件到回调函数
text.bind("<B1-Motion>", disable_scroll)

root.mainloop()