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