"""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('', self.__quit) root.bind('', 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()