add hg and python

1 files changed, 110 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Demo/tkinter/matt/two-radio-groups.py b/sys/src/cmd/python/Demo/tkinter/matt/two-radio-groups.py
new file mode 100644
index 000000000..9fd8f4f07
--- /dev/null
+++ b/sys/src/cmd/python/Demo/tkinter/matt/two-radio-groups.py
@@ -0,0 +1,110 @@
+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()