Re: 'connect' widget classes in an application

Op 2016-01-24 om 22:29 schreef Michael Lange:
>
> http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/events.html  (ff.)

Got the basics working now, took some time to figure out the dot in
  tab_id = "." + self.ed._name


Thanks again,

Ingo


import tkinter as tk
from tkinter import ttk

class Ttoolbar(ttk.Frame):

      def __init__(self, parent=None):
           ttk.Frame.__init__(self, parent)
           self._tb_items = []

      def add_button(self, **kw):
           b = ttk.Button(self, **kw)
           b.pack(side=tk.LEFT)
           self._tb_items.append(b)


class Eedit(tk.Text):

      def __init__(self, parent=None):
           txt = tk.Text.__init__(self, parent)


class Nnotebook(ttk.Notebook):

      def __init__(self, parent=None):
           ttk.Notebook.__init__(self, parent)
           self.pack(fill=tk.BOTH, expand=tk.Y)
           self.config(width=400, height=400)
           self.bind_class("TNotebook", "<Double-ButtonPress-1>", 
self.add_edtab)
           self.bind_all("<Control-n>", self.add_edtab)
           self.tab_ref={}

      def add_edtab(self, event=None, text=None):
           self.ed = Eedit()
           self.add(self.ed, text="untitled")
           tab_id = "." + self.ed._name
           self.tab_ref[tab_id] = self.ed
           self.select(tab_id)

      def active_tab(self):
           return self.tab_ref[self.select()]


class Aapp(ttk.Frame):

      def __init__(self, parent=None):
           ttk.Frame.__init__(self, parent)

           self.tb = Ttoolbar()
           self.tb.pack(side=tk.TOP, fill=tk.X)
           self.nb = Nnotebook()
           self.nb.pack()

           self.tb.add_button(
               text='Add Tab',
               command=lambda: self.nb.add_edtab()
           )
           self.tb.add_button(
               text='Add Text to Active Tab',
               command=lambda: self.nb.active_tab().insert(tk.END, 
'Button pressed.\n')
           )


if __name__ == '__main__':
      app = Aapp()
      app.pack()
      app.mainloop()