--------- Mensaje reenviado --------
> De: Michael O'Donnell <michael.odonn...@uam.es>
> Para: craf <p...@vtr.net>
> Cc: Python Tkinter Ingles <tkinter-discuss@python.org>
> Asunto: Re: [Tkinter-discuss] Calling functions outside the class
> Fecha: Fri, 17 Dec 2010 09:03:28 +0100
>
> Hi Cristian,
>
> The problem is, self is only defined within the class definition.
> Basically, the function are not part of the class, just called by the class.
> We use a lambda to get the class passed to the function.
> So, to correct your code:
>
> from Tkinter import *
>
> class MyApp:
> def __init__(self, parent):
> self.myParent = parent ### (7) remember my parent, the root
> self.myContainer1 = Frame(parent)
> self.myContainer1.pack()
>
> self.button1 = Button(self.myContainer1)
> self.button1.configure(text="OK", background= "green")
> self.button1.pack(side=LEFT)
> self.button1.bind("<Button-1>", lambda e, win=self:
> button1Click(win)) ### (1)
>
> self.button2 = Button(self.myContainer1)
> self.button2.configure(text="Cancel", background="red")
> self.button2.pack(side=RIGHT)
> self.button2.bind("<Button-1>", lambda e, win=self:
> button2Click(win)) ### (2)
>
> def button1Click(win):
> if win.button1["background"] == "green": ### (4)
> win.button1["background"] = "yellow"
> else:
> win.button2["background"] = "green"
>
> def button2Click(win):
> win.myParent.destroy() ### (6)
>
>
> root = Tk()
> myapp = MyApp(root)
> root.mainloop()
>
>
> root = Tk()
> myapp = MyApp(root)
> root.mainloop()
>
>
>
>
> On Fri, Dec 17, 2010 at 4:35 AM, craf <p...@vtr.net> wrote:
> > Hi.
> >
> > I'm testing this code:
> >
> > -------------------------------------------------------------------
> > from Tkinter import *
> >
> > class MyApp:
> > def __init__(self, parent):
> > self.myParent = parent ### (7) remember my parent, the root
> > self.myContainer1 = Frame(parent)
> > self.myContainer1.pack()
> >
> > self.button1 = Button(self.myContainer1)
> > self.button1.configure(text="OK", background= "green")
> > self.button1.pack(side=LEFT)
> > self.button1.bind("<Button-1>", self.button1Click) ### (1)
> >
> > self.button2 = Button(self.myContainer1)
> > self.button2.configure(text="Cancel", background="red")
> > self.button2.pack(side=RIGHT)
> > self.button2.bind("<Button-1>", self.button2Click) ### (2)
> >
> > def button1Click(self, event): ### (3)
> > if self.button1["background"] == "green": ### (4)
> > self.button1["background"] = "yellow"
> > else:
> > self.button2["background"] = "green"
> >
> > def button2Click(self, event): ### (5)
> > self.myParent.destroy() ### (6)
> >
> >
> > root = Tk()
> > myapp = MyApp(root)
> > root.mainloop()
> >
> > ---------------------------------------------------------------------
> >
> > Works without problems, but if I want to get the functions of the class,
> > then the problems begin.
> >
> > from Tkinter import *
> >
> > class MyApp:
> > def __init__(self, parent):
> > self.myParent = parent ### (7) remember my parent, the root
> > self.myContainer1 = Frame(parent)
> > self.myContainer1.pack()
> >
> > self.button1 = Button(self.myContainer1)
> > self.button1.configure(text="OK", background= "green")
> > self.button1.pack(side=LEFT)
> > self.button1.bind("<Button-1>", self.button1Click) ### (1)
> >
> > self.button2 = Button(self.myContainer1)
> > self.button2.configure(text="Cancel", background="red")
> > self.button2.pack(side=RIGHT)
> > self.button2.bind("<Button-1>", self.button2Click) ### (2)
> >
> > def button1Click(self, event): ¡¡¡FUNCTION OUTSIDE THE CLASS!!!
> > if self.button1["background"] == "green": ### (4)
> > self.button1["background"] = "yellow"
> > else:
> > self.button2["background"] = "green"
> >
> > def button2Click(self, event): ¡¡¡FUNCTION OUTSIDE THE CLASS!!!
> > self.myParent.destroy() ### (6)
> >
> >
> > root = Tk()
> > myapp = MyApp(root)
> > root.mainloop()
> >
> > What would be the correct way to call them?
> >
> > Thanks in advance
> >
> > Regards
> >
> > Cristian Abarzua F
> >
> > _______________________________________________
> > Tkinter-discuss mailing list
> > Tkinter-discuss@python.org
> > http://mail.python.org/mailman/listinfo/tkinter-discuss
> >
Hi Michael
thank you very much by example. Now I understand.
Regards.
Cristian
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