问题

I have notebook widget of class ttk.Notebook. In this notebook I'm adding many tabs:

notebook.add(child=my_object, text='my tab')

How can I get tab object and not tab name?

UPDATE 1

So, there is children dictionary. OK that brings next problem.

What I really want to do is to take my hands on object of active tab in Notebook. So I have this:

notebook.children[notebook.select().split('.')[2]])

but it looks ugly. Unfortunately widget name returned by select() has not exactly same format as widget names in children[]. Is there any method of reliable translation of one format to another or split() will never fail in this situation?

This is demo of problem:

#!/usr/bin/env python3

from tkinter import *
from tkinter.ttk import *


class App(Tk):
    def __init__(self):
        super().__init__()
        notebook = Notebook(self)
        notebook.add(child=Frame(notebook), text='tab1')
        notebook.add(child=Frame(notebook), text='tab2')
        notebook.add(child=Frame(notebook), text='tab3')
        notebook.pack()

        print('Tabs are: ', notebook.children.keys())
        print('Active tab: ', notebook.select())
        print(type(notebook.children[notebook.select().split('.')[2]]))

App().mainloop()

回答1:

ttk.Notebook stores Tab-Objects within it's children attribute which is a python dictionary like:

{my_tab._name: tab_object} e.g. {'4465111168': <Viewer.Tab object .4435079856.4465020320.4465111168>}

You can access a Tab-object via:

my_notebook.children[my_tab._name]

Where my_notebook is an instance of an ttk.Notebook object and my_tab is your Tab object. The tab attribute _name is the value wich get's stored as the key in my_notebook.children.

So the easiest way of accessing the tab objects would be by separately storing your my_tab._name values in a list or variable. With all the names stored you can access the children dict like above.

See https://docs.python.org/3.1/library/tkinter.ttk.html for more reference.

回答2:

The notebook.tabs() call returns a list of "tab names" which correspond to the children widget objects. A call to someWidget.nametowidget(tab_name) resolves to the child widget associated with that tab.

In other words, the Notebook .tabs() method returns a list of the names of the Notebook's children.

回答3:

Deleted my former post, because it was basically bs.

To get the actual widget-object use the following code:

name =  mywidget.winfo_name() # this returns this ominous string
                              # of numbers and dots

object_from_name = mywidget._nametowidget(name) # this returns your
                                                # actual widget

If you print object_from_name you'll likely get the name. But I think, this is how tkinter widget objects are represented. You should be able to do

object_from_name.config(text="stuff", do_further_stuff_here="")

来源：https://stackoverflow.com/questions/42011264/how-to-get-widget-object-from-ttk-notebook-tab

标签

python

tkinter

How to get widget object from ttk.Notebook tab?

问题

UPDATE 1

回答1:

回答2:

回答3: