1  """
       2  OptionMenu widget modified to allow dynamic menu reconfiguration
       3  and setting of highlightthickness
       4  """
       5  from tkinter import OptionMenu, _setit, StringVar, Button
       6  
       7  class ESC[4;38;5;81mDynOptionMenu(ESC[4;38;5;149mOptionMenu):
       8      """Add SetMenu and highlightthickness to OptionMenu.
       9  
      10      Highlightthickness adds space around menu button.
      11      """
      12      def __init__(self, master, variable, value, *values, **kwargs):
      13          highlightthickness = kwargs.pop('highlightthickness', None)
      14          OptionMenu.__init__(self, master, variable, value, *values, **kwargs)
      15          self['highlightthickness'] = highlightthickness
      16          self.variable = variable
      17          self.command = kwargs.get('command')
      18  
      19      def SetMenu(self,valueList,value=None):
      20          """
      21          clear and reload the menu with a new set of options.
      22          valueList - list of new options
      23          value - initial value to set the optionmenu's menubutton to
      24          """
      25          self['menu'].delete(0,'end')
      26          for item in valueList:
      27              self['menu'].add_command(label=item,
      28                      command=_setit(self.variable,item,self.command))
      29          if value:
      30              self.variable.set(value)
      31  
      32  def _dyn_option_menu(parent):  # htest #
      33      from tkinter import Toplevel # + StringVar, Button
      34  
      35      top = Toplevel(parent)
      36      top.title("Test dynamic option menu")
      37      x, y = map(int, parent.geometry().split('+')[1:])
      38      top.geometry("200x100+%d+%d" % (x + 250, y + 175))
      39      top.focus_set()
      40  
      41      var = StringVar(top)
      42      var.set("Old option set") #Set the default value
      43      dyn = DynOptionMenu(top, var, "old1","old2","old3","old4",
      44                          highlightthickness=5)
      45      dyn.pack()
      46  
      47      def update():
      48          dyn.SetMenu(["new1","new2","new3","new4"], value="new option set")
      49      button = Button(top, text="Change option set", command=update)
      50      button.pack()
      51  
      52  if __name__ == '__main__':
      53      # Only module without unittests because of intention to replace.
      54      from idlelib.idle_test.htest import run
      55      run(_dyn_option_menu)