# file: notebook.py
# A simple notebook-like Tkinter widget.
# Copyright 2003, Iuri Wickert (iwickert yahoo.com)
from Tkinter import *
class notebook:
# initialization. receives the master widget
# reference and the notebook orientation
def __init__(self, master, side=LEFT):
self.active_fr = None
self.count = 0
self.choice = IntVar(0)
# allows the TOP and BOTTOM
# radiobuttons' positioning.
if side in (TOP, BOTTOM):
self.side = LEFT
else:
self.side = TOP
# creates notebook's frames structure
self.rb_fr = Frame(master, borderwidth=2, relief=RIDGE)
self.rb_fr.pack(side=side, fill=BOTH)
self.screen_fr = Frame(master, borderwidth=2, relief=RIDGE)
self.screen_fr.pack(fill=BOTH)
# return a master frame reference for the external frames (screens)
def __call__(self):
return self.screen_fr
# add a new frame (screen) to the (bottom/left of the) notebook
def add_screen(self, fr, title):
b = Radiobutton(self.rb_fr, text=title, indicatoron=0, \
variable=self.choice, value=self.count, \
command=lambda: self.display(fr))
b.pack(fill=BOTH, side=self.side)
# ensures the first frame will be
# the first selected/enabled
if not self.active_fr:
fr.pack(fill=BOTH, expand=1)
self.active_fr = fr
self.count += 1
# returns a reference to the newly created
# radiobutton (allowing its configuration/destruction)
return b
# hides the former active frame and shows
# another one, keeping its reference
def display(self, fr):
self.active_fr.forget()
fr.pack(fill=BOTH, expand=1)
self.active_fr = fr
# END
###-------------------------------
# file: test.py
# simple demonstration of the Tkinter notebook
from Tkinter import *
from notebook import *
a = Tk()
n = notebook(a, LEFT)
# uses the notebook's frame
f1 = Frame(n())
b1 = Button(f1, text="Button 1")
e1 = Entry(f1)
# pack your widgets before adding the frame
# to the notebook (but not the frame itself)!
b1.pack(fill=BOTH, expand=1)
e1.pack(fill=BOTH, expand=1)
f2 = Frame(n())
# this button destroys the 1st screen radiobutton
b2 = Button(f2, text='Button 2', command=lambda:x1.destroy())
b3 = Button(f2, text='Beep 2', command=lambda:Tk.bell(a))
b2.pack(fill=BOTH, expand=1)
b3.pack(fill=BOTH, expand=1)
f3 = Frame(n())
# keeps the reference to the radiobutton (optional)
x1 = n.add_screen(f1, "Screen 1")
n.add_screen(f2, "Screen 2")
n.add_screen(f3, "dummy")
if __name__ == "__main__":
a.mainloop()
# END
