diff options
Diffstat (limited to 'Demo/tkinter/matt/two-radio-groups.py')
| -rw-r--r-- | Demo/tkinter/matt/two-radio-groups.py | 72 |
1 files changed, 36 insertions, 36 deletions
diff --git a/Demo/tkinter/matt/two-radio-groups.py b/Demo/tkinter/matt/two-radio-groups.py index 5c17333..9fd8f4f 100644 --- a/Demo/tkinter/matt/two-radio-groups.py +++ b/Demo/tkinter/matt/two-radio-groups.py @@ -1,44 +1,44 @@ 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"} +# 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) +# StringVar(), IntVar(), DoubleVar() and BooleanVar() to choose +# from) def makePoliticalParties(var): - # make menu button - Radiobutton_button = Menubutton(mBar, text='Political Party', - underline=0) + # 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='Republican', + variable=var, value=1) + + Radiobutton_button.menu.add('radiobutton', {'label': 'Democrat', + 'variable' : var, + 'value' : 2}) - Radiobutton_button.menu.add('radiobutton', {'label': 'Democrat', - 'variable' : var, - 'value' : 2}) + Radiobutton_button.menu.add('radiobutton', {'label': 'Libertarian', + 'variable' : var, + 'value' : 3}) - 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 @@ -48,22 +48,22 @@ def makePoliticalParties(var): def makeFlavors(var): - # make menu button - Radiobutton_button = Menubutton(mBar, text='Flavors', - underline=0) + # 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') + variable=var, value='Strawberry') Radiobutton_button.menu.add_radiobutton(label='Chocolate', - variable=var, value='Chocolate') + variable=var, value='Chocolate') Radiobutton_button.menu.add_radiobutton(label='Rocky Road', - variable=var, value='Rocky Road') + variable=var, value='Rocky Road') # choose a default var.set("Chocolate") @@ -88,7 +88,7 @@ root = Tk() mBar = Frame(root, relief=RAISED, borderwidth=2) mBar.pack(fill=X) -# make two application variables, +# make two application variables, # one to control each radio button set party = IntVar() flavor = StringVar() @@ -96,12 +96,12 @@ flavor = StringVar() Radiobutton_button = makePoliticalParties(party) Radiobutton_button2 = makeFlavors(flavor) -# finally, install the buttons in the menu bar. +# 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) + command=printStuff) b.pack(side=TOP) root.title('menu demo') |