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Viewing changes to Demo/tkinter/guido/switch.py

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2009-03-23 00:01:27 UTC
  • Revision ID: james.westby@ubuntu.com-20090323000127-5fstfxju4ufrhthq
Tags: upstream-3.1~a1+20090322
Import upstream version 3.1~a1+20090322

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