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  
      33  def _dyn_option_menu(parent):  # htest #
      34      from tkinter import Toplevel # + StringVar, Button
      35  
      36      top = Toplevel(parent)
      37      top.title("Test dynamic option menu")
      38      x, y = map(int, parent.geometry().split('+')[1:])
      39      top.geometry("200x100+%d+%d" % (x + 250, y + 175))
      40      top.focus_set()
      41  
      42      var = StringVar(top)
      43      var.set("Old option set") #Set the default value
      44      dyn = DynOptionMenu(top, var, "old1","old2","old3","old4",
      45                          highlightthickness=5)
      46      dyn.pack()
      47  
      48      def update():
      49          dyn.SetMenu(["new1","new2","new3","new4"], value="new option set")
      50      button = Button(top, text="Change option set", command=update)
      51      button.pack()
      52  
      53  
      54  if __name__ == '__main__':
      55      # Only module without unittests because of intention to replace.
      56      from idlelib.idle_test.htest import run
      57      run(_dyn_option_menu)