widget_state.py 文件源码

def _new_state(self, widget, newtext):
        widget = self.nametowidget(widget)

        if not newtext:
            goodstates = ["disabled"]
            font_extra = 0
        else:
            # set widget state according to what has been entered in the entry
            newstates = set(newtext.split()) # eliminate duplicates

            # keep only the valid states
            goodstates = [state for state in newstates if state in states]
            # define a new font size based on amount of states
            font_extra = 2 * len(goodstates)

        # set new widget state
        for widget in self.update_widgets:
            reset_state(widget) # remove any previous state from the widget
            widget.state(goodstates)

        # update Ttk Button font size
        self._set_font(font_extra)
        return 1