| """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, master=None): |
| self.__sb = switchboard |
| self.__version = version |
| self.__textwin = None |
| self.__listwin = None |
| self.__detailswin = None |
| modal = self.__modal = not not master |
| # If a master was given, we are running as a modal dialog servant to |
| # some other application. We rearrange our UI in this case (there's |
| # no File menu and we get `Okay' and `Cancel' buttons), and we do a |
| # grab_set() to make ourselves modal |
| if modal: |
| self.__tkroot = tkroot = Toplevel(master, class_='Pynche') |
| tkroot.grab_set() |
| tkroot.withdraw() |
| else: |
| # 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 |
| # |
| if not modal: |
| 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 Pynche...', |
| command=self.__popup_about, |
| underline=0) |
| # |
| # Tie them all together |
| # |
| if not modal: |
| 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', |
| modal and self.__bell or self.__quit) |
| root.title('Pynche %s' % version) |
| root.iconname('Pynche') |
| # Only bind accelerators for the File->Quit menu item if running as a |
| # standalone app |
| if not modal: |
| root.bind('<Alt-q>', self.__quit) |
| root.bind('<Alt-Q>', self.__quit) |
| else: |
| # We're a modal dialog so we have a new row of buttons |
| bframe = Frame(root, borderwidth=1, relief=RAISED) |
| bframe.grid(row=4, column=0, columnspan=2, |
| sticky='EW', |
| ipady=5) |
| okay = Button(bframe, |
| text='Okay', |
| command=self.__okay) |
| okay.pack(side=LEFT, expand=1) |
| cancel = Button(bframe, |
| text='Cancel', |
| command=self.__cancel) |
| cancel.pack(side=LEFT, expand=1) |
| |
| def __quit(self, event=None): |
| self.__tkroot.quit() |
| |
| def __bell(self, event=None): |
| self.__tkroot.bell() |
| |
| def __okay(self, event=None): |
| self.__sb.withdraw_views() |
| self.__tkroot.grab_release() |
| self.__quit() |
| |
| def __cancel(self, event=None): |
| self.__sb.canceled() |
| self.__okay() |
| |
| def __keepalive(self): |
| # Exercise the Python interpreter regularly so keyboard interrupts get |
| # through. |
| self.__tkroot.tk.createtimerhandler(KEEPALIVE_TIMER, self.__keepalive) |
| |
| def start(self): |
| if not self.__modal: |
| self.__keepalive() |
| self.__tkroot.mainloop() |
| |
| def window(self): |
| return self.__root |
| |
| def __popup_about(self, event=None): |
| from Main import __version__ |
| tkMessageBox.showinfo('About Pynche ' + __version__, |
| '''\ |
| Pynche %s |
| The PYthonically Natural |
| Color and Hue Editor |
| |
| For information contact |
| author: 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() |
| |
| def withdraw(self): |
| self.__root.withdraw() |
| |
| def deiconify(self): |
| self.__root.deiconify() |