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dynoption.py
""" OptionMenu widget modified to allow dynamic menu reconfiguration and setting of highlightthickness """ from tkinter import OptionMenu, _setit, StringVar, Button class DynOptionMenu(OptionMenu): """Add SetMenu and highlightthickness to OptionMenu. Highlightthickness adds space around menu button. """ def __init__(self, master, variable, value, *values, **kwargs): highlightthickness = kwargs.pop('highlightthickness', None) OptionMenu.__init__(self, master, variable, value, *values, **kwargs) self['highlightthickness'] = highlightthickness self.variable = variable self.command = kwargs.get('command') def SetMenu(self,valueList,value=None): """ clear and reload the menu with a new set of options. valueList - list of new options value - initial value to set the optionmenu's menubutton to """ self['menu'].delete(0,'end') for item in valueList: self['menu'].add_command(label=item, command=_setit(self.variable,item,self.command)) if value: self.variable.set(value) def _dyn_option_menu(parent): # htest # from tkinter import Toplevel # + StringVar, Button top = Toplevel(parent) top.title("Test dynamic option menu") x, y = map(int, parent.geometry().split('+')[1:]) top.geometry("200x100+%d+%d" % (x + 250, y + 175)) top.focus_set() var = StringVar(top) var.set("Old option set") #Set the default value dyn = DynOptionMenu(top, var, "old1","old2","old3","old4", highlightthickness=5) dyn.pack() def update(): dyn.SetMenu(["new1","new2","new3","new4"], value="new option set") button = Button(top, text="Change option set", command=update) button.pack() if __name__ == '__main__': # Only module without unittests because of intention to replace. from idlelib.idle_test.htest import run run(_dyn_option_menu)
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