Lib/lib-tk/ScrolledText.py

   1 # A ScrolledText widget feels like a text widget but also has a
   2 # vertical scroll bar on its right.  (Later, options may be added to
   3 # add a horizontal bar as well, to make the bars disappear
   4 # automatically when not needed, to move them to the other side of the
   5 # window, etc.)
   6 #
   7 # Configuration options are passed to the Text widget.
   8 # A Frame widget is inserted between the master and the text, to hold
   9 # the Scrollbar widget.
  10 # Most methods calls are inherited from the Text widget; Pack methods
  11 # are redirected to the Frame widget however.
  12
  13 from Tkinter import *
  14 from Tkinter import _cnfmerge
  15
  16 class ScrolledText(Text):
  17         def __init__(self, master=None, cnf={}, **kw):
  18                 if kw:
  19                         cnf = _cnfmerge((cnf, kw))
  20                 fcnf = {}
  21                 for k in cnf.keys():
  22                         if type(k) == ClassType or k == 'name':
  23                                 fcnf[k] = cnf[k]
  24                                 del cnf[k]
  25                 self.frame = apply(Frame, (master,), fcnf)
  26                 self.vbar = Scrollbar(self.frame, name='vbar')
  27                 self.vbar.pack(side=RIGHT, fill=Y)
  28                 cnf['name'] = 'text'
  29                 apply(Text.__init__, (self, self.frame), cnf)
  30                 self.pack(side=LEFT, fill=BOTH, expand=1)
  31                 self['yscrollcommand'] = self.vbar.set
  32                 self.vbar['command'] = self.yview
  33
  34                 # Copy Pack methods of self.frame -- hack!
  35                 for m in Pack.__dict__.keys():
  36                         if m[0] != '_' and m != 'config' and m != 'configure':
  37                                 setattr(self, m, getattr(self.frame, m))