如何使用 Python/Tkinter 制作菜单栏剪切/复制/粘贴 [英] How to make menubar cut/copy/paste with Python/Tkinter

问题描述

我想制作可以剪切/复制/粘贴任何选定文本的菜单项(在菜单栏中，而不是在右键单击弹出窗口中).

等价的键盘命令已经可以工作了，而我没有做任何事情来启用它们.例如，我可以在输入框中输入文本，使用 Control-X 剪切它，然后使用 Control-C 将其粘贴回(或其他地方).

我看到的有关该主题的帖子归结为单个小部件的剪切/复制/粘贴，但这已经有效.如何让菜单项激活它们?

谢谢.

需要明确的是，问题是:

• 如何使剪切/复制的菜单项作用于任何小部件中选择的任何文本
• 如何让粘贴菜单项在文本光标所在的位置粘贴文本

同样，执行此操作的关键命令(Control-x、Control-c、Control-v)已经可以在我没有做任何事情的情况下工作.我知道如何制作菜单；问题是我应该将什么命令附加到菜单项才能达到预期效果.

编辑 2:好的，我有一个有效的方法.由于关键命令已经工作，我们可以生成它们.就我而言，一切都是一个名为 noteBook 的笔记本，所以

lambda: self.noteBook.event_generate('')

根据需要进行切割.例如:

editmenu.add_command(label="Cut",Accelerator="Ctrl+X", command=lambda: self.noteBook.event_generate('<Control-x>'))

使用中:https://github.com/lnmaurer/qubit-control-interface/commit/c08c10a7fbc4a637c1e08358fb9a859​​3dfdf116e

不过，可能有一种更简洁的方法来做到这一点；知道的请回复.

解决方案

试试这个:来源

导入Tkinterdef make_menu(w):全局 the_menuthe_menu = Tkinter.Menu(w,tearoff=0)the_menu.add_command(label="Cut")the_menu.add_command(label="复制")the_menu.add_command(label="粘贴")def show_menu(e):w = e.widgetthe_menu.entryconfigure("剪切",command=lambda: w.event_generate("<>"))the_menu.entryconfigure("复制",command=lambda: w.event_generate("<<复制>>"))the_menu.entryconfigure("粘贴",command=lambda: w.event_generate("<<粘贴>"))the_menu.tk.call("tk_popup", the_menu, e.x_root, e.y_root)t = Tkinter.Tk()make_menu(t)e1 = Tkinter.Entry();e1.pack()e2 = Tkinter.Entry();e2.pack()e1.bind_class("Entry", "", show_menu)t.mainloop()

I'd like to make menu items (in the menubar, not in a right click pop-up window) that can cut/copy/paste whatever text is selected.

The equivalent keyboard commands already work without my having done anything to enable them. For example, I can enter text in an entry box, cut it with Control-X, and paste it back (or elsewhere) with Control-C.

The posts on the topic I've seen boil down to cut/copy/paste for individual widgets, but that already works. How do I make the menu items activate them?

Thanks.

EDIT: Just to be clear, The issues are:

• how to make the menu items for cut/copy act on whatever text is selected in any widget
• how to have the paste menu item paste text wherever the text cursor is

Again, the key commands to do this (Control-x, Control-c, Control-v) already work without my having done anything. I know how to make the menus; the question is just what command I should attach to the menu items to have the desired effect.

EDIT 2: Ok, I've got a way that works. Since the key commands already work, we can just generate them. In my case, everything is a a notebook named noteBook so

lambda: self.noteBook.event_generate('<Control-x>')

cuts as desired. For example:

editmenu.add_command(label="Cut", accelerator="Ctrl+X", command=lambda: self.noteBook.event_generate('<Control-x>'))

In use: https://github.com/lnmaurer/qubit-control-interface/commit/c08c10a7fbc4a637c1e08358fb9a8593dfdf116e

Still, there's probably a cleaner way to do this; please reply if you know it.

解决方案

try this: source

import Tkinter

def make_menu(w):
    global the_menu
    the_menu = Tkinter.Menu(w, tearoff=0)
    the_menu.add_command(label="Cut")
    the_menu.add_command(label="Copy")
    the_menu.add_command(label="Paste")

def show_menu(e):
    w = e.widget
    the_menu.entryconfigure("Cut",
    command=lambda: w.event_generate("<<Cut>>"))
    the_menu.entryconfigure("Copy",
    command=lambda: w.event_generate("<<Copy>>"))
    the_menu.entryconfigure("Paste",
    command=lambda: w.event_generate("<<Paste>>"))
    the_menu.tk.call("tk_popup", the_menu, e.x_root, e.y_root)

t = Tkinter.Tk()
make_menu(t)

e1 = Tkinter.Entry(); e1.pack()
e2 = Tkinter.Entry(); e2.pack()
e1.bind_class("Entry", "<Button-3><ButtonRelease-3>", show_menu)

t.mainloop()

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