Pmw/Pmw_1_2/lib/PmwScrolledField.py

   1 import Tkinter
   2 import Pmw
   3
   4 class ScrolledField(Pmw.MegaWidget):
   5     def __init__(self, parent = None, **kw):
   6
   7         # Define the megawidget options.
   8         INITOPT = Pmw.INITOPT
   9         optiondefs = (
  10             ('labelmargin',   0,      INITOPT),
  11             ('labelpos',      None,   INITOPT),
  12             ('sticky',        'ew',   INITOPT),
  13             ('text',          '',     self._text),
  14         )
  15         self.defineoptions(kw, optiondefs)
  16
  17         # Initialise the base class (after defining the options).
  18         Pmw.MegaWidget.__init__(self, parent)
  19
  20         # Create the components.
  21         interior = self.interior()
  22         self._scrolledFieldEntry = self.createcomponent('entry',
  23                 (), None,
  24                 Tkinter.Entry, (interior,))
  25
  26         # Can't always use 'disabled', since this greys out text in Tk 8.4.2
  27         try:
  28             self._scrolledFieldEntry.configure(state = 'readonly')
  29         except Tkinter.TclError:
  30             self._scrolledFieldEntry.configure(state = 'disabled')
  31
  32         self._scrolledFieldEntry.grid(column=2, row=2, sticky=self['sticky'])
  33         interior.grid_columnconfigure(2, weight=1)
  34         interior.grid_rowconfigure(2, weight=1)
  35
  36         self.createlabel(interior)
  37
  38         # Check keywords and initialise options.
  39         self.initialiseoptions()
  40
  41     def _text(self):
  42         text = self['text']
  43         self._scrolledFieldEntry.configure(state = 'normal')
  44         self._scrolledFieldEntry.delete(0, 'end')
  45         self._scrolledFieldEntry.insert('end', text)
  46
  47         # Can't always use 'disabled', since this greys out text in Tk 8.4.2
  48         try:
  49             self._scrolledFieldEntry.configure(state = 'readonly')
  50         except Tkinter.TclError:
  51             self._scrolledFieldEntry.configure(state = 'disabled')
  52
  53 Pmw.forwardmethods(ScrolledField, Tkinter.Entry, '_scrolledFieldEntry')