| """ |
| 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): |
| |
| kwargsCopy=copy.copy(kwargs) |
| if 'highlightthickness' in list(kwargs.keys()): |
| del(kwargs['highlightthickness']) |
| OptionMenu.__init__(self, master, variable, value, *values, **kwargs) |
| self.config(highlightthickness=kwargsCopy.get('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): |
| from tkinter import Toplevel |
|
|
| top = Toplevel(parent) |
| top.title("Tets 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") |
| 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) |
|
|
