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- from Tkinter import *
-
- # The way to think about this is that each radio button menu
- # controls a different variable -- clicking on one of the
- # mutually exclusive choices in a radiobutton assigns some value
- # to an application variable you provide. When you define a
- # radiobutton menu choice, you have the option of specifying the
- # name of a varaible and value to assign to that variable when
- # that choice is selected. This clever mechanism relieves you,
- # the programmer, from having to write a dumb callback that
- # probably wouldn't have done anything more than an assignment
- # anyway. The Tkinter options for this follow their Tk
- # counterparts:
- # {"variable" : my_flavor_variable, "value" : "strawberry"}
- # where my_flavor_variable is an instance of one of the
- # subclasses of Variable, provided in Tkinter.py (there is
- # StringVar(), IntVar(), DoubleVar() and BooleanVar() to choose
- # from)
-
-
-
- def makePoliticalParties():
- # make menu button
- Radiobutton_button = Menubutton(mBar, {'text': 'Political Party',
- 'underline': 0,
- Pack: {'side': 'left',
- 'padx': '2m'}})
-
- # the primary pulldown
- Radiobutton_button.menu = Menu(Radiobutton_button)
-
- Radiobutton_button.menu.add('radiobutton', {'label': 'Republican',
- 'variable' : party,
- 'value' : 1})
-
- Radiobutton_button.menu.add('radiobutton', {'label': 'Democrat',
- 'variable' : party,
- 'value' : 2})
-
- Radiobutton_button.menu.add('radiobutton', {'label': 'Libertarian',
- 'variable' : party,
- 'value' : 3})
-
- party.set(2)
-
- # set up a pointer from the file menubutton back to the file menu
- Radiobutton_button['menu'] = Radiobutton_button.menu
-
- return Radiobutton_button
-
-
- def makeFlavors():
- # make menu button
- Radiobutton_button = Menubutton(mBar, {'text': 'Flavors',
- 'underline': 0,
- Pack: {'side': 'left',
- 'padx': '2m'}})
- # the primary pulldown
- Radiobutton_button.menu = Menu(Radiobutton_button)
-
- Radiobutton_button.menu.add('radiobutton', {'label': 'Strawberry',
- 'variable' : flavor,
- 'value' : 'Strawberry'})
-
- Radiobutton_button.menu.add('radiobutton', {'label': 'Chocolate',
- 'variable' : flavor,
- 'value' : 'Chocolate'})
-
- Radiobutton_button.menu.add('radiobutton', {'label': 'Rocky Road',
- 'variable' : flavor,
- 'value' : 'Rocky Road'})
-
- # choose a default
- flavor.set("Chocolate")
-
- # set up a pointer from the file menubutton back to the file menu
- Radiobutton_button['menu'] = Radiobutton_button.menu
-
- return Radiobutton_button
-
-
- def printStuff():
- print "party is", party.get()
- print "flavor is", flavor.get()
- print ""
-
- #################################################
- #### Main starts here ...
- root = Tk()
-
-
- # make a menu bar
- mBar = Frame(root, {'relief': 'raised',
- 'bd': 2,
- Pack: {'side': 'top',
- 'fill': 'x'}})
-
- # make two application variables,
- # one to control each radio button set
- party = IntVar()
- flavor = StringVar()
-
- Radiobutton_button = makePoliticalParties()
- Radiobutton_button2 = makeFlavors()
-
- # finally, install the buttons in the menu bar.
- # This allows for scanning from one menubutton to the next.
- mBar.tk_menuBar(Radiobutton_button, Radiobutton_button2)
-
- b = Button(root, {"text": "print party and flavor",
- "command" : printStuff,
- "fg": "red"})
- b.pack({"side" : "top"})
-
- root.title('menu demo')
- root.iconname('menu demo')
-
- root.mainloop()
-