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# Show how to do switchable panels.
from Tkinter import *
class App:
def __init__(self, top=None, master=None):
if top is None:
if master is None:
top = Tk()
else:
top = Toplevel(master)
self.top = top
self.buttonframe = Frame(top)
self.buttonframe.pack()
self.panelframe = Frame(top, borderwidth=2, relief=GROOVE)
self.panelframe.pack(expand=1, fill=BOTH)
self.panels = {}
self.curpanel = None
def addpanel(self, name, klass):
button = Button(self.buttonframe, text=name,
command=lambda self=self, name=name: self.show(name))
button.pack(side=LEFT)
frame = Frame(self.panelframe)
instance = klass(frame)
self.panels[name] = (button, frame, instance)
if self.curpanel is None:
self.show(name)
def show(self, name):
(button, frame, instance) = self.panels[name]
if self.curpanel:
self.curpanel.pack_forget()
self.curpanel = frame
frame.pack(expand=1, fill="both")
class LabelPanel:
def __init__(self, frame):
self.label = Label(frame, text="Hello world")
self.label.pack()
class ButtonPanel:
def __init__(self, frame):
self.button = Button(frame, text="Press me")
self.button.pack()
def main():
app = App()
app.addpanel("label", LabelPanel)
app.addpanel("button", ButtonPanel)
app.top.mainloop()
if __name__ == '__main__':
main()