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"""Main Pynche (Pythonically Natural Color and Hue Editor) widget.
This window provides the basic decorations, primarily including the menubar.
It is used to bring up other windows.
"""
from Tkinter import *
import tkMessageBox
# Milliseconds between interrupt checks
KEEPALIVE_TIMER = 500
class PyncheWidget:
def __init__(self, version, switchboard):
self.__sb = switchboard
self.__version = version
self.__textwin = None
self.__listwin = None
self.__detailswin = None
#
# Is there already a default root for Tk, say because we're running
# under Guido's IDE? :-) Two conditions say no, either the import
# fails or _default_root is None.
tkroot = None
try:
from Tkinter import _default_root
tkroot = self.__tkroot = _default_root
except ImportError:
pass
if not tkroot:
tkroot = self.__tkroot = Tk(className='Pynche')
# but this isn't our top level widget, so make it invisible
tkroot.withdraw()
# create the menubar
menubar = self.__menubar = Menu(tkroot)
#
# File menu
#
filemenu = self.__filemenu = Menu(menubar, tearoff=0)
filemenu.add_command(label='Quit',
command=self.__quit,
accelerator='Alt-Q',
underline=0)
#
# View menu
#
viewmenu = Menu(menubar, tearoff=0)
viewmenu.add_command(label='Text Window...',
command=self.__popup_text,
underline=0)
viewmenu.add_command(label='Color List Window...',
command=self.__popup_listwin,
underline=0)
viewmenu.add_command(label='Details Window...',
command=self.__popup_details,
underline=0)
#
# Help menu
#
helpmenu = Menu(menubar, name='help', tearoff=0)
helpmenu.add_command(label='About...',
command=self.__popup_about,
underline=0)
#
# Tie them all together
#
menubar.add_cascade(label='File',
menu=filemenu,
underline=0)
menubar.add_cascade(label='View',
menu=viewmenu,
underline=0)
menubar.add_cascade(label='Help',
menu=helpmenu,
underline=0)
# now create the top level window
root = self.__root = Toplevel(tkroot, class_='Pynche', menu=menubar)
root.protocol('WM_DELETE_WINDOW', self.__quit)
root.title('Pynche %s' % version)
root.iconname('Pynche')
root.tk.createtimerhandler(KEEPALIVE_TIMER, self.__keepalive)
root.bind('<Alt-q>', self.__quit)
root.bind('<Alt-Q>', self.__quit)
def __quit(self, event=None):
self.__root.quit()
def __keepalive(self):
# Exercise the Python interpreter regularly so keyboard interrupts get
# through.
self.__tkroot.tk.createtimerhandler(KEEPALIVE_TIMER, self.__keepalive)
def start(self):
self.__keepalive()
self.__tkroot.mainloop()
def parent(self):
return self.__root
def __popup_about(self, event=None):
from pynche import __version__
tkMessageBox.showinfo('About Pynche ' + __version__,
'''\
Pynche %s
The PYthonically Natural
Color and Hue Editor
Copyright (C) 1998
Barry A. Warsaw
All rights reserved
For information about Pynche
contact: Barry A. Warsaw
email: bwarsaw@python.org''' % __version__)
def __popup_text(self, event=None):
if not self.__textwin:
from TextViewer import TextViewer
self.__textwin = TextViewer(self.__sb, self.__root)
self.__sb.add_view(self.__textwin)
self.__textwin.deiconify()
def __popup_listwin(self, event=None):
if not self.__listwin:
from ListViewer import ListViewer
self.__listwin = ListViewer(self.__sb, self.__root)
self.__sb.add_view(self.__listwin)
self.__listwin.deiconify()
def __popup_details(self, event=None):
if not self.__detailswin:
from DetailsViewer import DetailsViewer
self.__detailswin = DetailsViewer(self.__sb, self.__root)
self.__sb.add_view(self.__detailswin)
self.__detailswin.deiconify()
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