import Pmw

# A Dialog with a counter

class CounterDialog(Pmw.Dialog):

    def __init__(self, parent = None, **kw):

        # Define the megawidget options.
        INITOPT = Pmw.INITOPT
        optiondefs = (
            ('borderx',    20,  INITOPT),
            ('bordery',    20,  INITOPT),
        )
        self.defineoptions(kw, optiondefs)

        # Initialise the base class (after defining the options).
        Pmw.Dialog.__init__(self, parent)

        # Create the components.
        interior = self.interior()

        # Create the counter.
        aliases = (
            ('entryfield', 'counter_entryfield'),
            ('entry', 'counter_entryfield_entry'),
            ('label', 'counter_label')
        )
        self._cdCounter = self.createcomponent('counter',
                                               aliases, None,
                                               Pmw.Counter, (interior,))
        self._cdCounter.pack(fill='x', expand=1,
                             padx = self['borderx'], pady = self['bordery'])

        if not kw.has_key('activatecommand'):
            # Whenever this dialog is activated, set the focus to the
            # Counter's entry widget.
            tkentry = self.component('entry')
            self.configure(activatecommand = tkentry.focus_set)

        # Check keywords and initialise options.
        self.initialiseoptions()

    # Supply aliases to some of the entry component methods.
    def insertentry(self, index, text):
        self._cdCounter.insert(index, text)

    def deleteentry(self, first, last=None):
        self._cdCounter.delete(first, last)

    def indexentry(self, index):
        return self._cdCounter.index(index)

Pmw.forwardmethods(CounterDialog, Pmw.Counter, '_cdCounter')
