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#
# $Id$
#
# Tix.py -- Tix widget wrappers, part of PyTix.
#
#       - Sudhir Shenoy (sshenoy@gol.com), Dec. 1995.
#         based on an idea (and a little code !!) of Jean-Marc Lugrin
#                                               (lugrin@ms.com)
#
# NOTE: In order to minimize changes to Tkinter.py, some of the code here
#       (TixWidget.__init__) has been taken from Tkinter (Widget.__init__)
#       and will break if there are major changes in Tkinter.
#
# The Tix widgets are represented by a class hierarchy in python with proper
# inheritance of base classes.
#
# As a result after creating a 'w = StdButtonBox', I can write
#              w.ok['text'] = 'Who Cares'
#    or              w.ok['bg'] = w['bg']
# or even       w.ok.invoke()
# etc.
#
# Compare the demo tixwidgets.py to the original Tcl program and you will
# appreciate the advantages.
#

import string
from Tkinter import *
from Tkinter import _flatten, _cnfmerge, _default_root

# WARNING - TkVersion is a limited precision floating point number
if TkVersion < 3.999:
    raise ImportError, "This version of Tix.py requires Tk 4.0 or higher"

import _tkinter # If this fails your Python may not be configured for Tk
# TixVersion = string.atof(tkinter.TIX_VERSION) # If this fails your Python may not be configured for Tix
# WARNING - TixVersion is a limited precision floating point number

# Some more constants (for consistency with Tkinter)
WINDOW = 'window'
TEXT = 'text'
STATUS = 'status'
IMMEDIATE = 'immediate'
IMAGE = 'image'
IMAGETEXT = 'imagetext'
BALLOON = 'balloon'
AUTO = 'auto'
ACROSSTOP = 'acrosstop'

# BEWARE - this is implemented by copying some code from the Widget class
#          in Tkinter (to override Widget initialization) and is therefore
#          liable to break.
import Tkinter, os
class Tk(Tkinter.Tk):
    """Toplevel widget of Tix which represents mostly the main window
    of an application. It has an associated Tcl interpreter."""
    def __init__(self, screenName=None, baseName=None, className='Tk'):
        Tkinter.Tk.__init__(self, screenName, baseName, className)
        tixlib = os.environ.get('TIX_LIBRARY')
        if tixlib is not None:
            self.tk.eval('global auto_path; lappend auto_path {%s}' % tixlib)
            self.tk.eval('global tcl_pkgPath; lappend tcl_pkgPath {%s}' % tixlib)
        # Load Tix - this should work dynamically or statically
       # If it's static, lib/tix8.1/pkgIndex.tcl should have 'load {} Tix'
       # If it's dynamic, it should have 'load libtix8.1.8.2.so Tix'
        self.tk.eval('package require Tix')

# The Tix 'tixForm' geometry manager
class Form:
    """The Tix Form geometry manager

    Widgets can be arranged by specifying attachments to other widgets.
    See Tix documentation for complete details"""

    def config(self, cnf={}, **kw):
        apply(self.tk.call, ('tixForm', self._w) + self._options(cnf, kw))

    form = config

    def __setitem__(self, key, value):
        Form.form({key: value})

    def check(self):
        return self.tk.call('tixForm', 'check', self._w)

    def forget(self):
        self.tk.call('tixForm', 'forget', self._w)

    def grid(self, xsize=0, ysize=0):
        if (not xsize) and (not ysize):
            x = self.tk.call('tixForm', 'grid', self._w)
            y = self.tk.splitlist(x)
            z = ()
            for x in y:
                z = z + (self.tk.getint(x),)
            return z
        self.tk.call('tixForm', 'grid', self._w, xsize, ysize)

    def info(self, option=None):
        if not option:
            return self.tk.call('tixForm', 'info', self._w)
        if option[0] != '-':
            option = '-' + option
        return self.tk.call('tixForm', 'info', self._w, option)

    def slaves(self):
        return map(self._nametowidget,
                   self.tk.splitlist(
                       self.tk.call(
                       'tixForm', 'slaves', self._w)))
    

Tkinter.Widget.__bases__ = Tkinter.Widget.__bases__ + (Form,)

class TixWidget(Widget):
    """A TixWidget class is used to package all (or most) Tix widgets.

    Widget initialization is extended in two ways:
           1) It is possible to give a list of options which must be part of
       the creation command (so called Tix 'static' options). These cannot be
       given as a 'config' command later.
       2) It is possible to give the name of an existing TK widget. These are
       child widgets created automatically by a Tix mega-widget. The Tk call
       to create these widgets is therefore bypassed in TixWidget.__init__

    Both options are for use by subclasses only.
    """
    def __init__ (self, master=None, widgetName=None,
                static_options=None, cnf={}, kw={}):
       # Merge keywords and dictionary arguments
       if kw:
            cnf = _cnfmerge((cnf, kw))
       else:
           cnf = _cnfmerge(cnf)

       # Move static options into extra. static_options must be
       # a list of keywords (or None).
       extra=()
       if static_options:
           for k,v in cnf.items()[:]:
              if k in static_options:
                  extra = extra + ('-' + k, v)
                  del cnf[k]

       self.widgetName = widgetName
       Widget._setup(self, master, cnf)

       # If widgetName is None, this is a dummy creation call where the
       # corresponding Tk widget has already been created by Tix
       if widgetName:
           apply(self.tk.call, (widgetName, self._w) + extra)

       # Non-static options - to be done via a 'config' command
       if cnf:
           Widget.config(self, cnf)

       # Dictionary to hold subwidget names for easier access. We can't
       # use the children list because the public Tix names may not be the
       # same as the pathname component
       self.subwidget_list = {}

    # We set up an attribute access function so that it is possible to
    # do w.ok['text'] = 'Hello' rather than w.subwidget('ok')['text'] = 'Hello'
    # when w is a StdButtonBox.
    # We can even do w.ok.invoke() because w.ok is subclassed from the
    # Button class if you go through the proper constructors
    def __getattr__(self, name):
       if self.subwidget_list.has_key(name):
           return self.subwidget_list[name]
       raise AttributeError, name

    # Set a variable without calling its action routine
    def set_silent(self, value):
       self.tk.call('tixSetSilent', self._w, value)

    # Return the named subwidget (which must have been created by
    # the sub-class).
    def subwidget(self, name):
       n = self._subwidget_name(name)
       if not n:
           raise TclError, "Subwidget " + name + " not child of " + self._name
       # Remove header of name and leading dot
       n = n[len(self._w)+1:]
       return self._nametowidget(n)

    # Return all subwidgets
    def subwidgets_all(self):
       names = self._subwidget_names()
       if not names:
           return []
       retlist = []
       for name in names:
           name = name[len(self._w)+1:]
           try:
              retlist.append(self._nametowidget(name))
           except:
              # some of the widgets are unknown e.g. border in LabelFrame
              pass
       return retlist

    # Get a subwidget name (returns a String, not a Widget !)
    def _subwidget_name(self,name):
       try:
           return self.tk.call(self._w, 'subwidget', name)
       except TclError:
           return None

    # Return the name of all subwidgets
    def _subwidget_names(self):
       try:
           x = self.tk.call(self._w, 'subwidgets', '-all')
           return self.tk.split(x)
       except TclError:
           return None

    # Set configuration options for all subwidgets (and self)
    def config_all(self, option, value):
       if option == '':
           return
       elif type(option) != type(''):
           option = `option`
       if type(value) != type(''):
           value = `value`
       names = self._subwidget_names()
       for name in names:
           self.tk.call(name, 'configure', '-' + option, value)

# Subwidgets are child widgets created automatically by mega-widgets.
# In python, we have to create these subwidgets manually to mirror their
# existence in Tk/Tix.
class TixSubWidget(TixWidget):
    """Subwidget class.

    This is used to mirror child widgets automatically created
    by Tix/Tk as part of a mega-widget in Python (which is not informed
    of this)"""

    def __init__(self, master, name,
               destroy_physically=1, check_intermediate=1):
       if check_intermediate:
           path = master._subwidget_name(name)
           try:
              path = path[len(master._w)+1:]
              plist = string.splitfields(path, '.')
           except:
              plist = []

       if (not check_intermediate) or len(plist) < 2:
           # immediate descendant
           TixWidget.__init__(self, master, None, None, {'name' : name})
       else:
           # Ensure that the intermediate widgets exist
           parent = master
           for i in range(len(plist) - 1):
              n = string.joinfields(plist[:i+1], '.')
              try:
                  w = master._nametowidget(n)
                  parent = w
              except KeyError:
                  # Create the intermediate widget
                  parent = TixSubWidget(parent, plist[i],
                                     destroy_physically=0,
                                     check_intermediate=0)
           TixWidget.__init__(self, parent, None, None, {'name' : name})
       self.destroy_physically = destroy_physically

    def destroy(self):
       # For some widgets e.g., a NoteBook, when we call destructors,
       # we must be careful not to destroy the frame widget since this
       # also destroys the parent NoteBook thus leading to an exception
       # in Tkinter when it finally calls Tcl to destroy the NoteBook
       for c in self.children.values(): c.destroy()
       if self.master.children.has_key(self._name):
           del self.master.children[self._name]
       if self.master.subwidget_list.has_key(self._name):
           del self.master.subwidget_list[self._name]
       if self.destroy_physically:
           # This is bypassed only for a few widgets
           self.tk.call('destroy', self._w)


# Useful func. to split Tcl lists and return as a dict. From Tkinter.py
def _lst2dict(lst):
    dict = {}
    for x in lst:
       dict[x[0][1:]] = (x[0][1:],) + x[1:]
    return dict

# Useful class to create a display style - later shared by many items.
# Contributed by Steffen Kremser
class DisplayStyle:
    """DisplayStyle - handle configuration options shared by
    (multiple) Display Items"""

    def __init__(self, itemtype, cnf={}, **kw ):
        master = _default_root              # global from Tkinter
        if not master and cnf.has_key('refwindow'): master=cnf['refwindow']
        elif not master and kw.has_key('refwindow'):  master= kw['refwindow']
        elif not master: raise RuntimeError, "Too early to create display style: no root window"
        self.tk = master.tk
        self.stylename = apply(self.tk.call, ('tixDisplayStyle', itemtype) +
                            self._options(cnf,kw) )

    def __str__(self):
       return self.stylename
 
    def _options(self, cnf, kw ):
       if kw and cnf:
           cnf = _cnfmerge((cnf, kw))
       elif kw:
           cnf = kw
       opts = ()
       for k, v in cnf.items():
           opts = opts + ('-'+k, v)
       return opts
 
    def delete(self):
       self.tk.call(self.stylename, 'delete')
       del(self)
 
    def __setitem__(self,key,value):
       self.tk.call(self.stylename, 'configure', '-%s'%key, value)
 
    def config(self, cnf={}, **kw):
       return _lst2dict(
           self.tk.split(
              apply(self.tk.call,
                    (self.stylename, 'configure') + self._options(cnf,kw))))
 
    def __getitem__(self,key):
       return self.tk.call(self.stylename, 'cget', '-%s'%key, value)


######################################################
### The Tix Widget classes - in alphabetical order ###
######################################################

class Balloon(TixWidget):
    """Balloon help widget.

    Subwidget       Class
    ---------       -----
    label       Label
    message       Message"""

    def __init__(self, master=None, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixBalloon', ['options'], cnf, kw)
       self.subwidget_list['label'] = _dummyLabel(self, 'label',
                                             destroy_physically=0)
       self.subwidget_list['message'] = _dummyLabel(self, 'message',
                                               destroy_physically=0)

    def bind_widget(self, widget, cnf={}, **kw):
       """Bind balloon widget to another.
       One balloon widget may be bound to several widgets at the same time"""
       apply(self.tk.call, 
             (self._w, 'bind', widget._w) + self._options(cnf, kw))

    def unbind_widget(self, widget):
       self.tk.call(self._w, 'unbind', widget._w)

class ButtonBox(TixWidget):
    """ButtonBox - A container for pushbuttons"""
    def __init__(self, master=None, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixButtonBox',
                        ['orientation', 'options'], cnf, kw)

    def add(self, name, cnf={}, **kw):
       """Add a button with given name to box."""

       btn = apply(self.tk.call,
                  (self._w, 'add', name) + self._options(cnf, kw))
       self.subwidget_list[name] = _dummyButton(self, name)
       return btn

    def invoke(self, name):
       if self.subwidget_list.has_key(name):
           self.tk.call(self._w, 'invoke', name)

class ComboBox(TixWidget):
    """ComboBox - an Entry field with a dropdown menu

    Subwidget       Class
    ---------       -----
    entry       Entry
    arrow       Button
    slistbox       ScrolledListBox
    tick       Button }
    cross       Button } present if created with the fancy option"""

    def __init__ (self, master=None, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixComboBox', 
                        ['editable', 'dropdown', 'fancy', 'options'],
                        cnf, kw)
       self.subwidget_list['label'] = _dummyLabel(self, 'label')
       self.subwidget_list['entry'] = _dummyEntry(self, 'entry')
       self.subwidget_list['arrow'] = _dummyButton(self, 'arrow')
       self.subwidget_list['slistbox'] = _dummyScrolledListBox(self,
                                                        'slistbox')
       try:
           self.subwidget_list['tick'] = _dummyButton(self, 'tick')
           self.subwidget_list['cross'] = _dummyButton(self, 'cross')
       except TypeError:
           # unavailable when -fancy not specified
           pass

    def add_history(self, str):
       self.tk.call(self._w, 'addhistory', str)

    def append_history(self, str):
       self.tk.call(self._w, 'appendhistory', str)

    def insert(self, index, str):
       self.tk.call(self._w, 'insert', index, str)

    def pick(self, index):
       self.tk.call(self._w, 'pick', index)

class Control(TixWidget):
    """Control - An entry field with value change arrows.

    Subwidget       Class
    ---------       -----
    incr       Button
    decr       Button
    entry       Entry
    label       Label"""

    def __init__ (self, master=None, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixControl', ['options'], cnf, kw)
       self.subwidget_list['incr'] = _dummyButton(self, 'incr')
       self.subwidget_list['decr'] = _dummyButton(self, 'decr')
       self.subwidget_list['label'] = _dummyLabel(self, 'label')
       self.subwidget_list['entry'] = _dummyEntry(self, 'entry')

    def decrement(self):
       self.tk.call(self._w, 'decr')

    def increment(self):
       self.tk.call(self._w, 'incr')

    def invoke(self):
       self.tk.call(self._w, 'invoke')

    def update(self):
       self.tk.call(self._w, 'update')

class DirList(TixWidget):
    """DirList - Directory Listing.

    Subwidget       Class
    ---------       -----
    hlist       HList
    hsb              Scrollbar
    vsb              Scrollbar"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixDirList', ['options'], cnf, kw)
       self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

    def chdir(self, dir):
       self.tk.call(self._w, 'chdir', dir)

class DirTree(TixWidget):
    """DirList - Directory Listing in a hierarchical view.

    Subwidget       Class
    ---------       -----
    hlist       HList
    hsb              Scrollbar
    vsb              Scrollbar"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixDirTree', ['options'], cnf, kw)
       self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

    def chdir(self, dir):
       self.tk.call(self._w, 'chdir', dir)

class ExFileSelectBox(TixWidget):
    """ExFileSelectBox - MS Windows style file select box.

    Subwidget       Class
    ---------       -----
    cancel       Button
    ok              Button
    hidden       Checkbutton
    types       ComboBox
    dir              ComboBox
    file       ComboBox
    dirlist       ScrolledListBox
    filelist       ScrolledListBox"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixExFileSelectBox', ['options'], cnf, kw)
       self.subwidget_list['cancel'] = _dummyButton(self, 'cancel')
       self.subwidget_list['ok'] = _dummyButton(self, 'ok')
       self.subwidget_list['hidden'] = _dummyCheckbutton(self, 'hidden')
       self.subwidget_list['types'] = _dummyComboBox(self, 'types')
       self.subwidget_list['dir'] = _dummyComboBox(self, 'dir')
       self.subwidget_list['dirlist'] = _dummyDirList(self, 'dirlist')
       self.subwidget_list['file'] = _dummyComboBox(self, 'file')
       self.subwidget_list['filelist'] = _dummyScrolledListBox(self, 'filelist')

    def filter(self):
       self.tk.call(self._w, 'filter')

    def invoke(self):
       self.tk.call(self._w, 'invoke')

class ExFileSelectDialog(TixWidget):
    """ExFileSelectDialog - MS Windows style file select dialog.

    Subwidgets       Class
    ----------       -----
    fsbox       ExFileSelectBox"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixExFileSelectDialog',
                        ['options'], cnf, kw)
       self.subwidget_list['fsbox'] = _dummyExFileSelectBox(self, 'fsbox')

    def popup(self):
       self.tk.call(self._w, 'popup')

    def popdown(self):
       self.tk.call(self._w, 'popdown')

class FileSelectBox(TixWidget):
    """ExFileSelectBox - Motif style file select box.

    Subwidget       Class
    ---------       -----
    selection       ComboBox
    filter       ComboBox
    dirlist       ScrolledListBox
    filelist       ScrolledListBox"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixFileSelectBox', ['options'], cnf, kw)
       self.subwidget_list['dirlist'] = _dummyScrolledListBox(self, 'dirlist')
       self.subwidget_list['filelist'] = _dummyScrolledListBox(self, 'filelist')
       self.subwidget_list['filter'] = _dummyComboBox(self, 'filter')
       self.subwidget_list['selection'] = _dummyComboBox(self, 'selection')

    def apply_filter(self):              # name of subwidget is same as command
       self.tk.call(self._w, 'filter')

    def invoke(self):
       self.tk.call(self._w, 'invoke')

class FileSelectDialog(TixWidget):
    """FileSelectDialog - Motif style file select dialog.

    Subwidgets       Class
    ----------       -----
    btns       StdButtonBox
    fsbox       FileSelectBox"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixFileSelectDialog',
                        ['options'], cnf, kw)
       self.subwidget_list['btns'] = _dummyStdButtonBox(self, 'btns')
       self.subwidget_list['fsbox'] = _dummyFileSelectBox(self, 'fsbox')

    def popup(self):
       self.tk.call(self._w, 'popup')

    def popdown(self):
       self.tk.call(self._w, 'popdown')

class FileEntry(TixWidget):
    """FileEntry - Entry field with button that invokes a FileSelectDialog

    Subwidgets       Class
    ----------       -----
    button       Button
    entry       Entry"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixFileEntry',
                        ['dialogtype', 'options'], cnf, kw)
       self.subwidget_list['button'] = _dummyButton(self, 'button')
       self.subwidget_list['entry'] = _dummyEntry(self, 'entry')

    def invoke(self):
       self.tk.call(self._w, 'invoke')

    def file_dialog(self):
       # XXX return python object
       pass

class HList(TixWidget):
    """HList - Hierarchy display.

    Subwidgets - None"""

    def __init__ (self,master=None,cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixHList',
                        ['columns', 'options'], cnf, kw)

    def add(self, entry, cnf={}, **kw):
       return apply(self.tk.call,
                   (self._w, 'add', entry) + self._options(cnf, kw))

    def add_child(self, parent=None, cnf={}, **kw):
       if not parent:
           parent = ''
       return apply(self.tk.call,
                   (self._w, 'addchild', parent) + self._options(cnf, kw))

    def anchor_set(self, entry):
       self.tk.call(self._w, 'anchor', 'set', entry)

    def anchor_clear(self):
       self.tk.call(self._w, 'anchor', 'clear')

    def column_width(self, col=0, width=None, chars=None):
       if not chars:
           return self.tk.call(self._w, 'column', 'width', col, width)
       else:
           return self.tk.call(self._w, 'column', 'width', col,
                            '-char', chars)

    def delete_all(self):
       self.tk.call(self._w, 'delete', 'all')

    def delete_entry(self, entry):
       self.tk.call(self._w, 'delete', 'entry', entry)

    def delete_offsprings(self, entry):
       self.tk.call(self._w, 'delete', 'offsprings', entry)

    def delete_siblings(self, entry):
       self.tk.call(self._w, 'delete', 'siblings', entry)

    def dragsite_set(self, index):
       self.tk.call(self._w, 'dragsite', 'set', index)

    def dragsite_clear(self):
       self.tk.call(self._w, 'dragsite', 'clear')

    def dropsite_set(self, index):
       self.tk.call(self._w, 'dropsite', 'set', index)

    def dropsite_clear(self):
       self.tk.call(self._w, 'dropsite', 'clear')

    def header_create(self, col, cnf={}, **kw):
        apply(self.tk.call,
              (self._w, 'header', 'create', col) + self._options(cnf, kw))
 
    def header_configure(self, col, cnf={}, **kw):
       if cnf is None:
           return _lst2dict(
              self.tk.split(
                  self.tk.call(self._w, 'header', 'configure', col)))
       apply(self.tk.call, (self._w, 'header', 'configure', col)
             + self._options(cnf, kw))
 
    def header_cget(self,  col, opt):
       return self.tk.call(self._w, 'header', 'cget', col, opt)
 
    def header_exists(self,  col):
       return self.tk.call(self._w, 'header', 'exists', col)
 
    def header_delete(self, col):
        self.tk.call(self._w, 'header', 'delete', col)
 
    def header_size(self, col):
        return self.tk.call(self._w, 'header', 'size', col)
 
    def hide_entry(self, entry):
       self.tk.call(self._w, 'hide', 'entry', entry)

    def indicator_create(self, entry, cnf={}, **kw):
        apply(self.tk.call,
              (self._w, 'indicator', 'create', entry) + self._options(cnf, kw))
 
    def indicator_configure(self, entry, cnf={}, **kw):
       if cnf is None:
           return _lst2dict(
              self.tk.split(
                  self.tk.call(self._w, 'indicator', 'configure', entry)))
       apply(self.tk.call,
             (self._w, 'indicator', 'configure', entry) + self._options(cnf, kw))
 
    def indicator_cget(self,  entry, opt):
       return self.tk.call(self._w, 'indicator', 'cget', entry, opt)
 
    def indicator_exists(self,  entry):
       return self.tk.call (self._w, 'indicator', 'exists', entry)
 
    def indicator_delete(self, entry):
        self.tk.call(self._w, 'indicator', 'delete', entry)
 
    def indicator_size(self, entry):
        return self.tk.call(self._w, 'indicator', 'size', entry)

    def info_anchor(self):
       return self.tk.call(self._w, 'info', 'anchor')

    def info_children(self, entry=None):
       c = self.tk.call(self._w, 'info', 'children', entry)
       return self.tk.splitlist(c)

    def info_data(self, entry):
       return self.tk.call(self._w, 'info', 'data', entry)

    def info_exists(self, entry):
       return self.tk.call(self._w, 'info', 'exists', entry)

    def info_hidden(self, entry):
       return self.tk.call(self._w, 'info', 'hidden', entry)

    def info_next(self, entry):
       return self.tk.call(self._w, 'info', 'next', entry)

    def info_parent(self, entry):
       return self.tk.call(self._w, 'info', 'parent', entry)

    def info_prev(self, entry):
       return self.tk.call(self._w, 'info', 'prev', entry)

    def info_selection(self):
       c = self.tk.call(self._w, 'info', 'selection')
       return self.tk.splitlist(c)

    def item_cget(self,  col, opt):
       return self.tk.call(self._w, 'item', 'cget', col, opt)
 
    def item_configure(self, entry, col, cnf={}, **kw):
       if cnf is None:
           return _lst2dict(
              self.tk.split(
                  self.tk.call(self._w, 'item', 'configure', entry, col)))
       apply(self.tk.call, (self._w, 'item', 'configure', entry, col) +
             self._options(cnf, kw))

    def item_create(self, entry, col, cnf={}, **kw):
       apply(self.tk.call,
             (self._w, 'item', 'create', entry, col) + self._options(cnf, kw))

    def item_exists(self, entry, col):
       return self.tk.call(self._w, 'item', 'exists', entry, col)
 
    def item_delete(self, entry, col):
       self.tk.call(self._w, 'item', 'delete', entry, col)

    def nearest(self, y):
       return self.tk.call(self._w, 'nearest', y)

    def see(self, entry):
       self.tk.call(self._w, 'see', entry)

    def selection_clear(self, cnf={}, **kw):
       apply(self.tk.call,
             (self._w, 'selection', 'clear') + self._options(cnf, kw))

    def selection_includes(self, entry):
       return self.tk.call(self._w, 'selection', 'includes', entry)

    def selection_set(self, first, last=None):
       self.tk.call(self._w, 'selection', 'set', first, last)

    def show_entry(self, entry):
       return self.tk.call(self._w, 'show', 'entry', entry)

    def xview(self, *args):
       apply(self.tk.call, (self._w, 'xview') + args)

    def yview(self, *args):
       apply(self.tk.call, (self._w, 'yview') + args)

class InputOnly(TixWidget):
    """InputOnly - Invisible widget.

    Subwidgets - None"""

    def __init__ (self,master=None,cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixInputOnly', None, cnf, kw)

class LabelEntry(TixWidget):
    """LabelEntry - Entry field with label.

    Subwidgets       Class
    ----------       -----
    label       Label
    entry       Entry"""

    def __init__ (self,master=None,cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixLabelEntry',
                        ['labelside','options'], cnf, kw)
       self.subwidget_list['label'] = _dummyLabel(self, 'label')
       self.subwidget_list['entry'] = _dummyEntry(self, 'entry')

class LabelFrame(TixWidget):
    """LabelFrame - Labelled Frame container.

    Subwidgets       Class
    ----------       -----
    label       Label
    frame       Frame"""

    def __init__ (self,master=None,cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixLabelFrame',
                        ['labelside','options'], cnf, kw)
       self.subwidget_list['label'] = _dummyLabel(self, 'label')
       self.subwidget_list['frame'] = _dummyFrame(self, 'frame')

class NoteBook(TixWidget):
    """NoteBook - Multi-page container widget (tabbed notebook metaphor).

    Subwidgets       Class
    ----------       -----
    nbframe       NoteBookFrame
    <pages>       g/p widgets added dynamically"""

    def __init__ (self,master=None,cnf={}, **kw):
       TixWidget.__init__(self,master,'tixNoteBook', ['options'], cnf, kw)
       self.subwidget_list['nbframe'] = TixSubWidget(self, 'nbframe',
                                                destroy_physically=0)

    def add(self, name, cnf={}, **kw):
       apply(self.tk.call,
             (self._w, 'add', name) + self._options(cnf, kw))
       self.subwidget_list[name] = TixSubWidget(self, name)
       return self.subwidget_list[name]

    def delete(self, name):
       self.tk.call(self._w, 'delete', name)

    def page(self, name):
       return self.subwidget(name)

    def pages(self):
       # Can't call subwidgets_all directly because we don't want .nbframe
       names = self.tk.split(self.tk.call(self._w, 'pages'))
       ret = []
       for x in names:
           ret.append(self.subwidget(x))
       return ret

    def raise_page(self, name):              # raise is a python keyword
       self.tk.call(self._w, 'raise', name)

    def raised(self):
       return self.tk.call(self._w, 'raised')

class NoteBookFrame(TixWidget):
    """Will be added when Tix documentation is available !!!"""
    pass

class OptionMenu(TixWidget):
    """OptionMenu - Option menu widget.

    Subwidget       Class
    ---------       -----
    menubutton       Menubutton
    menu       Menu"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixOptionMenu', ['options'], cnf, kw)
       self.subwidget_list['menubutton'] = _dummyMenubutton(self, 'menubutton')
       self.subwidget_list['menu'] = _dummyMenu(self, 'menu')

    def add_command(self, name, cnf={}, **kw):
       apply(self.tk.call,
             (self._w, 'add', 'command', name) + self._options(cnf, kw))

    def add_separator(self, name, cnf={}, **kw):
       apply(self.tk.call,
             (self._w, 'add', 'separator', name) + self._options(cnf, kw))

    def delete(self, name):
       self.tk.call(self._w, 'delete', name)

    def disable(self, name):
       self.tk.call(self._w, 'disable', name)

    def enable(self, name):
       self.tk.call(self._w, 'enable', name)

class PanedWindow(TixWidget):
    """PanedWindow - Multi-pane container widget. Panes are resizable.

    Subwidgets       Class
    ----------       -----
    <panes>       g/p widgets added dynamically"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixPanedWindow', ['orientation', 'options'], cnf, kw)

    def add(self, name, cnf={}, **kw):
       apply(self.tk.call,
             (self._w, 'add', name) + self._options(cnf, kw))
       self.subwidget_list[name] = TixSubWidget(self, name,
                                           check_intermediate=0)
       return self.subwidget_list[name]

    def panes(self):
       names = self.tk.call(self._w, 'panes')
       ret = []
       for x in names:
           ret.append(self.subwidget(x))
       return ret

class PopupMenu(TixWidget):
    """PopupMenu widget.

    Subwidgets       Class
    ----------       -----
    menubutton       Menubutton
    menu       Menu"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixPopupMenu', ['options'], cnf, kw)
       self.subwidget_list['menubutton'] = _dummyMenubutton(self, 'menubutton')
       self.subwidget_list['menu'] = _dummyMenu(self, 'menu')

    def bind_widget(self, widget):
       self.tk.call(self._w, 'bind', widget._w)

    def unbind_widget(self, widget):
       self.tk.call(self._w, 'unbind', widget._w)

    def post_widget(self, widget, x, y):
       self.tk.call(self._w, 'post', widget._w, x, y)

class ResizeHandle(TixWidget):
    """Incomplete - no documentation in Tix for this !!!"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixResizeHandle',
                        ['options'], cnf, kw)

    def attach_widget(self, widget):
       self.tk.call(self._w, 'attachwidget', widget._w)

class ScrolledHList(TixWidget):
    """ScrolledHList - HList with scrollbars."""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixScrolledHList', ['options'],
                        cnf, kw)
       self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

class ScrolledListBox(TixWidget):
    """ScrolledListBox - Listbox with scrollbars."""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixScrolledListBox', ['options'], cnf, kw)
       self.subwidget_list['listbox'] = _dummyListbox(self, 'listbox')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

class ScrolledText(TixWidget):
    """ScrolledText - Text with scrollbars."""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixScrolledText', ['options'], cnf, kw)
       self.subwidget_list['text'] = _dummyText(self, 'text')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

class ScrolledTList(TixWidget):
    """ScrolledTList - TList with scrollbars."""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixScrolledTList', ['options'],
                        cnf, kw)
       self.subwidget_list['tlist'] = _dummyTList(self, 'tlist')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

class ScrolledWindow(TixWidget):
    """ScrolledWindow - Window with scrollbars."""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixScrolledWindow', ['options'], cnf, kw)
       self.subwidget_list['window'] = _dummyFrame(self, 'window')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

class Select(TixWidget):
    """Select - Container for buttons. Can enforce radio buttons etc.

    Subwidgets are buttons added dynamically"""

    def __init__(self, master, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixSelect',
                        ['allowzero', 'radio', 'orientation', 'labelside',
                         'options'],
                        cnf, kw)
       self.subwidget_list['label'] = _dummyLabel(self, 'label')

    def add(self, name, cnf={}, **kw):
       apply(self.tk.call,
             (self._w, 'add', name) + self._options(cnf, kw))
       self.subwidget_list[name] = _dummyButton(self, name)
       return self.subwidget_list[name]

    def invoke(self, name):
       self.tk.call(self._w, 'invoke', name)

class StdButtonBox(TixWidget):
    """StdButtonBox - Standard Button Box (OK, Apply, Cancel and Help) """

    def __init__(self, master=None, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixStdButtonBox',
                        ['orientation', 'options'], cnf, kw)
       self.subwidget_list['ok'] = _dummyButton(self, 'ok')
       self.subwidget_list['apply'] = _dummyButton(self, 'apply')
       self.subwidget_list['cancel'] = _dummyButton(self, 'cancel')
       self.subwidget_list['help'] = _dummyButton(self, 'help')

    def invoke(self, name):
       if self.subwidget_list.has_key(name):
           self.tk.call(self._w, 'invoke', name)

class TList(TixWidget):
    """TList - Hierarchy display.

    Subwidgets - None"""

    def __init__ (self,master=None,cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixTList', ['options'], cnf, kw)

    def active_set(self, index):
       self.tk.call(self._w, 'active', 'set', index)

    def active_clear(self):
       self.tk.call(self._w, 'active', 'clear')

    def anchor_set(self, index):
       self.tk.call(self._w, 'anchor', 'set', index)

    def anchor_clear(self):
       self.tk.call(self._w, 'anchor', 'clear')

    def delete(self, from_, to=None):
       self.tk.call(self._w, 'delete', from_, to)

    def dragsite_set(self, index):
       self.tk.call(self._w, 'dragsite', 'set', index)

    def dragsite_clear(self):
       self.tk.call(self._w, 'dragsite', 'clear')

    def dropsite_set(self, index):
       self.tk.call(self._w, 'dropsite', 'set', index)

    def dropsite_clear(self):
       self.tk.call(self._w, 'dropsite', 'clear')

    def insert(self, index, cnf={}, **kw):
       apply(self.tk.call,
              (self._w, 'insert', index) + self._options(cnf, kw))

    def info_active(self):
       return self.tk.call(self._w, 'info', 'active')

    def info_anchor(self):
       return self.tk.call(self._w, 'info', 'anchor')

    def info_down(self, index):
       return self.tk.call(self._w, 'info', 'down', index)

    def info_left(self, index):
       return self.tk.call(self._w, 'info', 'left', index)

    def info_right(self, index):
       return self.tk.call(self._w, 'info', 'right', index)

    def info_selection(self):
       c = self.tk.call(self._w, 'info', 'selection')
       return self.tk.splitlist(c)

    def info_size(self):
       return self.tk.call(self._w, 'info', 'size')

    def info_up(self, index):
       return self.tk.call(self._w, 'info', 'up', index)

    def nearest(self, x, y):
       return self.tk.call(self._w, 'nearest', x, y)

    def see(self, index):
       self.tk.call(self._w, 'see', index)

    def selection_clear(self, cnf={}, **kw):
       apply(self.tk.call,
             (self._w, 'selection', 'clear') + self._options(cnf, kw))

    def selection_includes(self, index):
       return self.tk.call(self._w, 'selection', 'includes', index)

    def selection_set(self, first, last=None):
       self.tk.call(self._w, 'selection', 'set', first, last)

    def xview(self, *args):
       apply(self.tk.call, (self._w, 'xview') + args)

    def yview(self, *args):
       apply(self.tk.call, (self._w, 'yview') + args)

class Tree(TixWidget):
    """Tree - The tixTree widget (general purpose DirList like widget)"""

    def __init__(self, master=None, cnf={}, **kw):
       TixWidget.__init__(self, master, 'tixTree',
                        ['options'], cnf, kw)
       self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

    def autosetmode(self):
       self.tk.call(self._w, 'autosetmode')

    def close(self, entrypath):
       self.tk.call(self._w, 'close', entrypath)

    def getmode(self, entrypath):
       return self.tk.call(self._w, 'getmode', entrypath)

    def open(self, entrypath):
       self.tk.call(self._w, 'open', entrypath)

    def setmode(self, entrypath, mode='none'):
       self.tk.call(self._w, 'setmode', entrypath, mode)

###########################################################################
### The subclassing below is used to instantiate the subwidgets in each ###
### mega widget. This allows us to access their methods directly.       ###
###########################################################################

class _dummyButton(Button, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyCheckbutton(Checkbutton, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyEntry(Entry, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyFrame(Frame, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyLabel(Label, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyListbox(Listbox, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyMenu(Menu, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyMenubutton(Menubutton, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyScrollbar(Scrollbar, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyText(Text, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyScrolledListBox(ScrolledListBox, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)
       self.subwidget_list['listbox'] = _dummyListbox(self, 'listbox')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

class _dummyHList(HList, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyTList(TList, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)

class _dummyComboBox(ComboBox, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)
       self.subwidget_list['entry'] = _dummyEntry(self, 'entry')
       self.subwidget_list['arrow'] = _dummyButton(self, 'arrow')
       self.subwidget_list['slistbox'] = _dummyScrolledListBox(self,
                                                        'slistbox')
       self.subwidget_list['listbox'] = _dummyListbox(self, 'listbox',
                                                 destroy_physically=0)

class _dummyDirList(DirList, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)
       self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
       self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
       self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')

class _dummyExFileSelectBox(ExFileSelectBox, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)
       self.subwidget_list['cancel'] = _dummyButton(self, 'cancel')
       self.subwidget_list['ok'] = _dummyButton(self, 'ok')
       self.subwidget_list['hidden'] = _dummyCheckbutton(self, 'hidden')
       self.subwidget_list['types'] = _dummyComboBox(self, 'types')
       self.subwidget_list['dir'] = _dummyComboBox(self, 'dir')
       self.subwidget_list['dirlist'] = _dummyScrolledListBox(self, 'dirlist')
       self.subwidget_list['file'] = _dummyComboBox(self, 'file')
       self.subwidget_list['filelist'] = _dummyScrolledListBox(self, 'filelist')

class _dummyFileSelectBox(FileSelectBox, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)
       self.subwidget_list['dirlist'] = _dummyScrolledListBox(self, 'dirlist')
       self.subwidget_list['filelist'] = _dummyScrolledListBox(self, 'filelist')
       self.subwidget_list['filter'] = _dummyComboBox(self, 'filter')
       self.subwidget_list['selection'] = _dummyComboBox(self, 'selection')

class _dummyStdButtonBox(StdButtonBox, TixSubWidget):
    def __init__(self, master, name, destroy_physically=1):
       TixSubWidget.__init__(self, master, name, destroy_physically)
       self.subwidget_list['ok'] = _dummyButton(self, 'ok')
       self.subwidget_list['apply'] = _dummyButton(self, 'apply')
       self.subwidget_list['cancel'] = _dummyButton(self, 'cancel')
       self.subwidget_list['help'] = _dummyButton(self, 'help')

class _dummyNoteBookFrame(NoteBookFrame, TixSubWidget):
    def __init__(self, master, name, destroy_physically=0):
       TixSubWidget.__init__(self, master, name, destroy_physically)

########################
### Utility Routines ###
########################

# Returns the qualified path name for the widget. Normally used to set
# default options for subwidgets. See tixwidgets.py
def OptionName(widget):
    return widget.tk.call('tixOptionName', widget._w)

# Called with a dictionary argument of the form
# {'*.c':'C source files', '*.txt':'Text Files', '*':'All files'}
# returns a string which can be used to configure the fsbox file types
# in an ExFileSelectBox. i.e.,
# '{{*} {* - All files}} {{*.c} {*.c - C source files}} {{*.txt} {*.txt - Text Files}}'
def FileTypeList(dict):
    s = ''
    for type in dict.keys():
       s = s + '{{' + type + '} {' + type + ' - ' + dict[type] + '}} '
    return s