1"""A ScrolledText widget feels like a text widget but also has a 2vertical scroll bar on its right. (Later, options may be added to 3add a horizontal bar as well, to make the bars disappear 4automatically when not needed, to move them to the other side of the 5window, etc.) 6 7Configuration options are passed to the Text widget. 8A Frame widget is inserted between the master and the text, to hold 9the Scrollbar widget. 10Most methods calls are inherited from the Text widget; Pack, Grid and 11Place methods are redirected to the Frame widget however. 12""" 13 14__all__ = ['ScrolledText'] 15 16from Tkinter import Frame, Text, Scrollbar, Pack, Grid, Place 17from Tkconstants import RIGHT, LEFT, Y, BOTH 18 19class ScrolledText(Text): 20 def __init__(self, master=None, **kw): 21 self.frame = Frame(master) 22 self.vbar = Scrollbar(self.frame) 23 self.vbar.pack(side=RIGHT, fill=Y) 24 25 kw.update({'yscrollcommand': self.vbar.set}) 26 Text.__init__(self, self.frame, **kw) 27 self.pack(side=LEFT, fill=BOTH, expand=True) 28 self.vbar['command'] = self.yview 29 30 # Copy geometry methods of self.frame without overriding Text 31 # methods -- hack! 32 text_meths = vars(Text).keys() 33 methods = vars(Pack).keys() + vars(Grid).keys() + vars(Place).keys() 34 methods = set(methods).difference(text_meths) 35 36 for m in methods: 37 if m[0] != '_' and m != 'config' and m != 'configure': 38 setattr(self, m, getattr(self.frame, m)) 39 40 def __str__(self): 41 return str(self.frame) 42 43 44def example(): 45 import __main__ 46 from Tkconstants import END 47 48 stext = ScrolledText(bg='white', height=10) 49 stext.insert(END, __main__.__doc__) 50 stext.pack(fill=BOTH, side=LEFT, expand=True) 51 stext.focus_set() 52 stext.mainloop() 53 54if __name__ == "__main__": 55 example() 56