| """ |
| OptionMenu widget modified to allow dynamic menu reconfiguration |
| and setting of highlightthickness |
| """ |
| import copy |
| from Tkinter import OptionMenu, _setit, StringVar, Button |
| |
| class DynOptionMenu(OptionMenu): |
| """ |
| unlike OptionMenu, our kwargs can include highlightthickness |
| """ |
| def __init__(self, master, variable, value, *values, **kwargs): |
| # TODO copy value instead of whole dict |
| kwargsCopy=copy.copy(kwargs) |
| if 'highlightthickness' in kwargs.keys(): |
| del(kwargs['highlightthickness']) |
| OptionMenu.__init__(self, master, variable, value, *values, **kwargs) |
| self.config(highlightthickness=kwargsCopy.get('highlightthickness')) |
| #self.menu=self['menu'] |
| 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 |
| |
| top = Toplevel() |
| top.title("Tets dynamic option menu") |
| top.geometry("200x100+%d+%d" % (parent.winfo_rootx() + 200, |
| parent.winfo_rooty() + 150)) |
| top.focus_set() |
| |
| var = StringVar(top) |
| var.set("Old option set") #Set the default value |
| dyn = DynOptionMenu(top,var, "old1","old2","old3","old4") |
| 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__': |
| from idlelib.idle_test.htest import run |
| run(_dyn_option_menu) |