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Diffstat (limited to 'Demo/tkinter/matt/two-radio-groups.py')
-rw-r--r-- | Demo/tkinter/matt/two-radio-groups.py | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/Demo/tkinter/matt/two-radio-groups.py b/Demo/tkinter/matt/two-radio-groups.py deleted file mode 100644 index 38b61b1..0000000 --- a/Demo/tkinter/matt/two-radio-groups.py +++ /dev/null @@ -1,110 +0,0 @@ -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(var): - # make menu button - Radiobutton_button = Menubutton(mBar, text='Political Party', - underline=0) - Radiobutton_button.pack(side=LEFT, padx='2m') - - # the primary pulldown - Radiobutton_button.menu = Menu(Radiobutton_button) - - Radiobutton_button.menu.add_radiobutton(label='Republican', - variable=var, value=1) - - Radiobutton_button.menu.add('radiobutton', {'label': 'Democrat', - 'variable' : var, - 'value' : 2}) - - Radiobutton_button.menu.add('radiobutton', {'label': 'Libertarian', - 'variable' : var, - 'value' : 3}) - - var.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(var): - # make menu button - Radiobutton_button = Menubutton(mBar, text='Flavors', - underline=0) - Radiobutton_button.pack(side=LEFT, padx='2m') - - # the primary pulldown - Radiobutton_button.menu = Menu(Radiobutton_button) - - Radiobutton_button.menu.add_radiobutton(label='Strawberry', - variable=var, value='Strawberry') - - Radiobutton_button.menu.add_radiobutton(label='Chocolate', - variable=var, value='Chocolate') - - Radiobutton_button.menu.add_radiobutton(label='Rocky Road', - variable=var, value='Rocky Road') - - # choose a default - var.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, borderwidth=2) -mBar.pack(fill=X) - -# make two application variables, -# one to control each radio button set -party = IntVar() -flavor = StringVar() - -Radiobutton_button = makePoliticalParties(party) -Radiobutton_button2 = makeFlavors(flavor) - -# 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", foreground="red", - command=printStuff) -b.pack(side=TOP) - -root.title('menu demo') -root.iconname('menu demo') - -root.mainloop() |