# Based on iwidgets2.2.0/dialog.itk and iwidgets2.2.0/dialogshell.itk code.
# Convention:
# Each dialog window should have one of these as the rightmost button:
# Close Close a window which only displays information.
# Cancel Close a window which may be used to change the state of
# the application.
import sys
import types
import Tkinter
import Pmw
# A Toplevel with a ButtonBox and child site.
class Dialog(Pmw.MegaToplevel):
def __init__(self, parent = None, **kw):
# Define the megawidget options.
INITOPT = Pmw.INITOPT
optiondefs = (
('buttonbox_hull_borderwidth', 1, None),
('buttonbox_hull_relief', 'raised', None),
('buttonboxpos', 's', INITOPT),
('buttons', ('OK',), self._buttons),
('command', None, None),
('dialogchildsite_borderwidth', 1, None),
('dialogchildsite_relief', 'raised', None),
('defaultbutton', None, self._defaultButton),
('master', 'parent', None),
('separatorwidth', 0, INITOPT),
)
self.defineoptions(kw, optiondefs)
# Initialise the base class (after defining the options).
Pmw.MegaToplevel.__init__(self, parent)
# Create the components.
oldInterior = Pmw.MegaToplevel.interior(self)
# Set up pack options according to the position of the button box.
pos = self['buttonboxpos']
if pos not in 'nsew':
raise ValueError, \
'bad buttonboxpos option "%s": should be n, s, e, or w' \
% pos
if pos in 'ns':
orient = 'horizontal'
fill = 'x'
if pos == 'n':
side = 'top'
else:
side = 'bottom'
else:
orient = 'vertical'
fill = 'y'
if pos == 'w':
side = 'left'
else:
side = 'right'
# Create the button box.
self._buttonBox = self.createcomponent('buttonbox',
(), None,
Pmw.ButtonBox, (oldInterior,), orient = orient)
self._buttonBox.pack(side = side, fill = fill)
# Create the separating line.
width = self['separatorwidth']
if width > 0:
self._separator = self.createcomponent('separator',
(), None,
Tkinter.Frame, (oldInterior,), relief = 'sunken',
height = width, width = width, borderwidth = width / 2)
self._separator.pack(side = side, fill = fill)
# Create the child site.
self.__dialogChildSite = self.createcomponent('dialogchildsite',
(), None,
Tkinter.Frame, (oldInterior,))
self.__dialogChildSite.pack(side=side, fill='both', expand=1)
self.oldButtons = ()
self.oldDefault = None
self.bind('<Return>', self._invokeDefault)
self.userdeletefunc(self._doCommand)
self.usermodaldeletefunc(self._doCommand)
# Check keywords and initialise options.
self.initialiseoptions()
def interior(self):
return self.__dialogChildSite
def invoke(self, index = Pmw.DEFAULT):
return self._buttonBox.invoke(index)
def _invokeDefault(self, event):
try:
self._buttonBox.index(Pmw.DEFAULT)
except ValueError:
return
self._buttonBox.invoke()
def _doCommand(self, name = None):
if name is not None and self.active() and \
Pmw.grabstacktopwindow() != self.component('hull'):
# This is a modal dialog but is not on the top of the grab
# stack (ie: should not have the grab), so ignore this
# event. This seems to be a bug in Tk and may occur in
# nested modal dialogs.
#
# An example is the PromptDialog demonstration. To
# trigger the problem, start the demo, then move the mouse
# to the main window, hit <TAB> and then <TAB> again. The
# highlight border of the "Show prompt dialog" button
# should now be displayed. Now hit <SPACE>, <RETURN>,
# <RETURN> rapidly several times. Eventually, hitting the
# return key invokes the password dialog "OK" button even
# though the confirm dialog is active (and therefore
# should have the keyboard focus). Observed under Solaris
# 2.5.1, python 1.5.2 and Tk8.0.
# TODO: Give focus to the window on top of the grabstack.
return
command = self['command']
if callable(command):
return command(name)
else:
if self.active():
self.deactivate(name)
else:
self.withdraw()
def _buttons(self):
buttons = self['buttons']
if type(buttons) != types.TupleType and type(buttons) != types.ListType:
raise ValueError, \
'bad buttons option "%s": should be a tuple' % str(buttons)
if self.oldButtons == buttons:
return
self.oldButtons = buttons
for index in range(self._buttonBox.numbuttons()):
self._buttonBox.delete(0)
for name in buttons:
self._buttonBox.add(name,
command=lambda self=self, name=name: self._doCommand(name))
if len(buttons) > 0:
defaultbutton = self['defaultbutton']
if defaultbutton is None:
self._buttonBox.setdefault(None)
else:
try:
self._buttonBox.index(defaultbutton)
except ValueError:
pass
else:
self._buttonBox.setdefault(defaultbutton)
self._buttonBox.alignbuttons()
def _defaultButton(self):
defaultbutton = self['defaultbutton']
if self.oldDefault == defaultbutton:
return
self.oldDefault = defaultbutton
if len(self['buttons']) > 0:
if defaultbutton is None:
self._buttonBox.setdefault(None)
else:
try:
self._buttonBox.index(defaultbutton)
except ValueError:
pass
else:
self._buttonBox.setdefault(defaultbutton)
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