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import tkinter as tk
class Example(tk.Frame):
def __init__(self, parent):
tk.Frame.__init__(self, parent)
self.text = tk.Text(self, wrap="word")
self.vsb = tk.Scrollbar(self, orient="vertical", command=self.text.yview)
self.text.configure(yscrollcommand=self.text_yview)
self.vsb.pack(side="right", fill="y")
self.text.pack(side="left", fill="both", expand=True)
# create an info window in the bottom right corner and
# inset a couple of pixels
self.info = tk.Label(self.text, width=20, borderwidth=1, relief="solid")
self.info.place(relx=1.0, rely=1.0, x=-2, y=-2,anchor="se")
def text_yview(self, *args):
'''
This gets called whenever the yview changes. For this example
we'll update the label to show the line number of the first
visible row.
'''
# first, update the scrollbar to reflect the state of the widget
self.vsb.set(*args)
# get index of first visible line, and put that in the label
index = self.text.index("@0,0")
self.info.configure(text=index)
if __name__ == "__main__":
root = tk.Tk()
Example(root).pack(side="top", fill="both", expand=True)
root.mainloop()
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