我试图undo
在我的文本小部件上使用功能,tkinter
但没有任何运气。我试过这样:
from Tkinter import *
from ttk import Notebook
def OnVsb(*args):
text.yview(*args)
numbers.yview(*args)
def OnMouseWheel(event):
text.yview("scroll", event.delta,"units")
numbers.yview("scroll",event.delta,"units")
return "break"
def undo(*argv):
text.edit_undo()
root = Tk()
defaultbg = root.cget('bg')
root.bind('<Control-z>', undo)
note = Notebook(root)
frame = Frame(note, bd=5, relief=GROOVE, padx=5, pady=5)
frame.pack()
bar = Scrollbar(frame, command=OnVsb)
bar.pack(side=RIGHT, fill=Y)
numbers = Listbox(frame, width=5, height=30,bg=defaultbg,relief=FLAT, yscrollcommand=bar.set)
numbers.pack(side=LEFT, fill=Y)
text = Text(frame,bd=3, width=145, height=30, yscrollcommand=bar.set)
text.pack(side=LEFT, fill=Y)
text.bind("<MouseWheel>", OnMouseWheel)
text.tag_config("attr", foreground="tomato")
text.tag_config("value", foreground="dark violet")
text.tag_config("tags", foreground="dodger blue")
text.tag_config("text", font=("Georgia", "9", "bold"))
text.focus_set()
root.lift()
root.call('wm', 'attributes', '.', '-topmost', '1')
root.after_idle(root.call, 'wm', 'attributes', '.', '-topmost', False)
root.mainloop()
但由于某种原因,它什么也没做。我以为它是在文本小部件中默认实现的,但没有成功。有关如何在文本小部件上使用此功能的任何建议?任何例子将不胜感激。