class CheckBox(Widget):
def __init__(self, master, **kwargs):
self._value = IntVar()
super().__init__(tk=ttk.Checkbutton(master=master,
variable=self._value),
**kwargs)
self._setter = self.connect_to_prop("value", self.on_changed_value)
self._trace = self._value.trace_add(
"write", lambda *_: self._setter(self._value.get()))
def on_changed_value(self, value):
self._value.set(value)
def on_disposed(self):
self._value.trace_remove("write", self._trace)
self._value = None
self._setter = None
class Scale(Widget):
def __init__(self, master, **kwargs):
self._valuev = IntVar()
super().__init__(tk=TkTickScale(master=master,
orient=kwargs.get("node").get_attr(
"orient", "horizontal"),
variable=self._valuev),
**kwargs)
self._setter = self.connect_to_prop("value", self.on_changed_value)
self._trace = self._valuev.trace_add(
"write", lambda *_: self._setter(self._valuev.get()))
def on_changed_value(self, value):
self._valuev.set(int(value))
def on_disposed(self):
self._valuev.trace_remove("write", self._trace)
self._valuev = None
self._setter = None