1 # file: notebook.py
   2 # A simple notebook-like Tkinter widget.
   3 # Copyright 2003, Iuri Wickert (iwickert yahoo.com)
   4 
   5 from Tkinter import *
   6 
   7 class notebook:
   8         
   9         
  10         # initialization. receives the master widget
  11         # reference and the notebook orientation
  12         def __init__(self, master, side=LEFT):
  13                 
  14                 self.active_fr = None
  15                 self.count = 0
  16                 self.choice = IntVar(0)
  17 
  18                 # allows the TOP and BOTTOM
  19                 # radiobuttons' positioning.
  20                 if side in (TOP, BOTTOM):
  21                         self.side = LEFT
  22                 else:
  23                         self.side = TOP
  24 
  25                 # creates notebook's frames structure
  26                 self.rb_fr = Frame(master, borderwidth=2, relief=RIDGE)
  27                 self.rb_fr.pack(side=side, fill=BOTH)
  28                 self.screen_fr = Frame(master, borderwidth=2, relief=RIDGE)
  29                 self.screen_fr.pack(fill=BOTH)
  30                 
  31 
  32         # return a master frame reference for the external frames (screens)
  33         def __call__(self):
  34 
  35                 return self.screen_fr
  36 
  37                 
  38         # add a new frame (screen) to the (bottom/left of the) notebook
  39         def add_screen(self, fr, title):
  40                 
  41                 b = Radiobutton(self.rb_fr, text=title, indicatoron=0, \
  42                         variable=self.choice, value=self.count, \
  43                         command=lambda: self.display(fr))
  44                 b.pack(fill=BOTH, side=self.side)
  45                 
  46                 # ensures the first frame will be
  47                 # the first selected/enabled
  48                 if not self.active_fr:
  49                         fr.pack(fill=BOTH, expand=1)
  50                         self.active_fr = fr
  51 
  52                 self.count += 1
  53                 
  54                 # returns a reference to the newly created
  55                 # radiobutton (allowing its configuration/destruction)         
  56                 return b
  57 
  58 
  59         # hides the former active frame and shows 
  60         # another one, keeping its reference
  61         def display(self, fr):
  62                 
  63                 self.active_fr.forget()
  64                 fr.pack(fill=BOTH, expand=1)
  65                 self.active_fr = fr
  66 
  67 # END

   1 # ###-------------------------------
   2 # # file: test.py
   3 # # simple demonstration of the Tkinter notebook
   4 
   5 # from Tkinter import *
   6 # from notebook import *
   7 
   8 a = Tk()
   9 n = notebook(a, LEFT)
  10 
  11 # uses the notebook's frame
  12 f1 = Frame(n())
  13 b1 = Button(f1, text="Button 1")
  14 e1 = Entry(f1)
  15 # pack your widgets before adding the frame 
  16 # to the notebook (but not the frame itself)!
  17 b1.pack(fill=BOTH, expand=1)
  18 e1.pack(fill=BOTH, expand=1)
  19 
  20 f2 = Frame(n())
  21 # this button destroys the 1st screen radiobutton
  22 b2 = Button(f2, text='Button 2', command=lambda:x1.destroy())
  23 b3 = Button(f2, text='Beep 2', command=lambda:Tk.bell(a))
  24 b2.pack(fill=BOTH, expand=1)
  25 b3.pack(fill=BOTH, expand=1)
  26 
  27 f3 = Frame(n())
  28 
  29 # keeps the reference to the radiobutton (optional)
  30 x1 = n.add_screen(f1, "Screen 1")
  31 n.add_screen(f2, "Screen 2")
  32 n.add_screen(f3, "dummy")
  33 
  34 if __name__ == "__main__":
  35         a.mainloop()