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""" |
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OptionMenu widget modified to allow dynamic menu reconfiguration |
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and setting of highlightthickness |
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""" |
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import copy |
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from tkinter import OptionMenu, _setit, StringVar, Button |
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class DynOptionMenu(OptionMenu): |
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""" |
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unlike OptionMenu, our kwargs can include highlightthickness |
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""" |
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def __init__(self, master, variable, value, *values, **kwargs): |
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kwargsCopy=copy.copy(kwargs) |
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if 'highlightthickness' in list(kwargs.keys()): |
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del(kwargs['highlightthickness']) |
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OptionMenu.__init__(self, master, variable, value, *values, **kwargs) |
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self.config(highlightthickness=kwargsCopy.get('highlightthickness')) |
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self.variable=variable |
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self.command=kwargs.get('command') |
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def SetMenu(self,valueList,value=None): |
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""" |
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clear and reload the menu with a new set of options. |
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valueList - list of new options |
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value - initial value to set the optionmenu's menubutton to |
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""" |
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self['menu'].delete(0,'end') |
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for item in valueList: |
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self['menu'].add_command(label=item, |
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command=_setit(self.variable,item,self.command)) |
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if value: |
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self.variable.set(value) |
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def _dyn_option_menu(parent): |
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from tkinter import Toplevel |
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top = Toplevel(parent) |
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top.title("Tets dynamic option menu") |
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x, y = map(int, parent.geometry().split('+')[1:]) |
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top.geometry("200x100+%d+%d" % (x + 250, y + 175)) |
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top.focus_set() |
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var = StringVar(top) |
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var.set("Old option set") |
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dyn = DynOptionMenu(top,var, "old1","old2","old3","old4") |
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dyn.pack() |
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def update(): |
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dyn.SetMenu(["new1","new2","new3","new4"], value="new option set") |
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button = Button(top, text="Change option set", command=update) |
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button.pack() |
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if __name__ == '__main__': |
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from idlelib.idle_test.htest import run |
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run(_dyn_option_menu) |
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