I'm using Tkinter for a GUI for a program of mine, and I'm trying to
use radio buttons to select different functions, but it's not working
right at all. Originally, I had something like
class ClassOne(self):
def ___str___(self):
return "This is the base class."
class ClassTwo(ClassOne):
def __str__(self):
return "This is the derived class."
in, say, classes.py, and something like
import classes
from Tkinter import *
class Application(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.grid()
self.widgets()
LabelText = classes.ClassOne()
def widgets(self):
ClassLabel = Label(self, text = self.LabelText)
ClassLabel.grid()
root = Tk()
app = Application(root)
root.mainloop()
in, say, GUI.py. This works perfectly fine, but it only sets the label
as "This is the base class." What I'd like is a way to use radio
buttons to configure the text of ClassLabel so that the user can
choose between the two classes.
Currently, I'm trying changing GUI.py to something like:
import classes
from Tkinter import *
class Application(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.grid()
self.widgets()
LabelText = classes.ClassOne()
classes = ["ClassOne", "ClassTwo"]
def widgets(self):
self.variable = IntVar()
ClassLabel = Label(self, text = self.LabelText)
ClassLabel.grid(row = 0)
ClassOneButton = Radiobutton(self, text = "This selects the
base class.", variable = self.variable, value = 0, command =
self.ChangeClass)
ClassOneButton.grid(row = 1, column = 0)
ClassTwoButton = Radiobutton(self, text = "This selects the
derived class.", variable = self.variable, value = 1, command =
self.ChangeClass)
ResetButton = Button(self, text = "Reset the label", command =
self.ResetLabel)
def ResetLabel(self):
self.ClassLabel.configure(text = LabelText)
def ChangeClass(self):
self.selection = self.variable.get() # This should get the
value of the selected radio button, right?
self.LabelText = self.classes[self.selection]() # LabelText
changes according to the radio button.
root = Tk()
app = Application(root)
root.mainloop()
... but when I run this, BOTH radio buttons are selected, and it still
just gives me the base class. What am I doing wrong? Is there a way to
first call a class with a radio button, and then reconfigure the label
with that class? Any help that can be offered is appreciated!
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