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<TITLE>PmwDialog.py</TITLE>
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<FONT COLOR="#DD0000"># Based on iwidgets2.2.0/dialog.itk and iwidgets2.2.0/dialogshell.itk code.</FONT>
<FONT COLOR="#DD0000"># Convention:</FONT>
<FONT COLOR="#DD0000"># Each dialog window should have one of these as the rightmost button:</FONT>
<FONT COLOR="#DD0000"># Close Close a window which only displays information.</FONT>
<FONT COLOR="#DD0000"># Cancel Close a window which may be used to change the state of</FONT>
<FONT COLOR="#DD0000"># the application.</FONT>
import sys
import Tkinter
import Pmw
<FONT COLOR="#DD0000"># A Toplevel with a ButtonBox and child site.</FONT>
<STRONG><FONT COLOR="#CC6600">class Dialog</FONT></STRONG>(Pmw.MegaToplevel):
<STRONG> def __init__</STRONG>(self, parent = None, **kw):
<FONT COLOR="#DD0000"># Define the megawidget options.</FONT>
INITOPT = Pmw.INITOPT
optiondefs = (
(<FONT COLOR="#009900">'buttonbox_hull_borderwidth'</FONT>, 1, None),
(<FONT COLOR="#009900">'buttonbox_hull_relief'</FONT>, <FONT COLOR="#009900">'raised'</FONT>, None),
(<FONT COLOR="#009900">'buttonboxpos'</FONT>, <FONT COLOR="#009900">'s'</FONT>, INITOPT),
(<FONT COLOR="#009900">'buttons'</FONT>, (<FONT COLOR="#009900">'OK'</FONT>,), self._buttons),
(<FONT COLOR="#009900">'command'</FONT>, None, None),
(<FONT COLOR="#009900">'dialogchildsite_borderwidth'</FONT>, 1, None),
(<FONT COLOR="#009900">'dialogchildsite_relief'</FONT>, <FONT COLOR="#009900">'raised'</FONT>, None),
(<FONT COLOR="#009900">'defaultbutton'</FONT>, None, self._defaultButton),
(<FONT COLOR="#009900">'separatorwidth'</FONT>, 0, INITOPT),
)
self.defineoptions(kw, optiondefs)
<FONT COLOR="#DD0000"># Initialise the base class (after defining the options).</FONT>
Pmw.MegaToplevel.__init__(self, parent)
<FONT COLOR="#DD0000"># Create the components.</FONT>
oldInterior = Pmw.MegaToplevel.interior(self)
<FONT COLOR="#DD0000"># Set up pack options according to the position of the button box.</FONT>
pos = self[<FONT COLOR="#009900">'buttonboxpos'</FONT>]
if pos not in <FONT COLOR="#009900">'nsew'</FONT>:
raise ValueError, \
<FONT COLOR="#009900">'bad buttonboxpos option "%s": should be n, s, e, or w'</FONT> \
% pos
if pos in <FONT COLOR="#009900">'ns'</FONT>:
orient = <FONT COLOR="#009900">'horizontal'</FONT>
fill = <FONT COLOR="#009900">'x'</FONT>
if pos == <FONT COLOR="#009900">'n'</FONT>:
side = <FONT COLOR="#009900">'top'</FONT>
else:
side = <FONT COLOR="#009900">'bottom'</FONT>
else:
orient = <FONT COLOR="#009900">'vertical'</FONT>
fill = <FONT COLOR="#009900">'y'</FONT>
if pos == <FONT COLOR="#009900">'w'</FONT>:
side = <FONT COLOR="#009900">'left'</FONT>
else:
side = <FONT COLOR="#009900">'right'</FONT>
<FONT COLOR="#DD0000"># Create the button box.</FONT>
self._buttonBox = self.createcomponent(<FONT COLOR="#009900">'buttonbox'</FONT>,
(), None,
Pmw.ButtonBox, (oldInterior,), orient = orient)
self._buttonBox.pack(side = side, fill = fill)
<FONT COLOR="#DD0000"># Create the separating line.</FONT>
width = self[<FONT COLOR="#009900">'separatorwidth'</FONT>]
if width > 0:
self._separator = self.createcomponent(<FONT COLOR="#009900">'separator'</FONT>,
(), None,
Tkinter.Frame, (oldInterior,), relief = <FONT COLOR="#009900">'sunken'</FONT>,
height = width, width = width, borderwidth = width / 2)
self._separator.pack(side = side, fill = fill)
<FONT COLOR="#DD0000"># Create the child site.</FONT>
self.__dialogChildSite = self.createcomponent(<FONT COLOR="#009900">'dialogchildsite'</FONT>,
(), None,
Tkinter.Frame, (oldInterior,))
self.__dialogChildSite.pack(side=side, fill=<FONT COLOR="#009900">'both'</FONT>, expand=1)
self.oldButtons = ()
self.oldDefault = None
self.bind(<FONT COLOR="#009900">'<Return>'</FONT>, self._invokeDefault)
self.userdeletefunc(self._doCommand)
self.usermodaldeletefunc(self._doCommand)
<FONT COLOR="#DD0000"># Check keywords and initialise options.</FONT>
self.initialiseoptions(Dialog)
<STRONG> def interior</STRONG>(self):
return self.__dialogChildSite
<STRONG> def invoke</STRONG>(self, index = <FONT COLOR="#009900">'default'</FONT>):
return self._buttonBox.invoke(index)
<STRONG> def _invokeDefault</STRONG>(self, event):
try:
self._buttonBox.index(<FONT COLOR="#009900">'default'</FONT>)
except ValueError:
sys.exc_traceback = None <FONT COLOR="#DD0000"># Clean up object references</FONT>
return
self._buttonBox.invoke()
<STRONG> def _doCommand</STRONG>(self, name = None):
command = self[<FONT COLOR="#009900">'command'</FONT>]
if callable(command):
return command(name)
else:
if self.active():
self.deactivate(name)
else:
self.withdraw()
<STRONG> def _buttons</STRONG>(self):
buttons = self[<FONT COLOR="#009900">'buttons'</FONT>]
if type(buttons) != type(()) and type(buttons) != type([]):
raise ValueError, \
<FONT COLOR="#009900">'bad buttons option "%s": should be a tuple'</FONT> % 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[<FONT COLOR="#009900">'defaultbutton'</FONT>]
if defaultbutton is None:
self._buttonBox.setdefault(None)
else:
try:
self._buttonBox.index(defaultbutton)
except ValueError:
sys.exc_traceback = None <FONT COLOR="#DD0000"># Clean up object references</FONT>
else:
self._buttonBox.setdefault(defaultbutton)
self._buttonBox.alignbuttons()
<STRONG> def _defaultButton</STRONG>(self):
defaultbutton = self[<FONT COLOR="#009900">'defaultbutton'</FONT>]
if self.oldDefault == defaultbutton:
return
self.oldDefault = defaultbutton
if len(self[<FONT COLOR="#009900">'buttons'</FONT>]) > 0:
if defaultbutton is None:
self._buttonBox.setdefault(None)
else:
try:
self._buttonBox.index(defaultbutton)
except ValueError:
sys.exc_traceback = None <FONT COLOR="#DD0000"># Clean up object references</FONT>
else:
self._buttonBox.setdefault(defaultbutton)
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