graph.py 文件源码

def create_category(self, name, attr, value, color, font_color):
        """Create category widget"""
        VIS = ['none', '']
        widget = self.toggle_widgets[attr] = ToggleButton(value=value, description=name)
        wcolor = self.color_widgets[attr] = ColorPicker(value=color, description=name, width="180px")
        wfont_color = self.font_color_widgets[attr] = ColorPicker(value=font_color, width="110px")
        def visibility(*args):
            """" Toggles visibility of category """
            self._display_stack += 1
            wcolor.layout.display = VIS[int(widget.value)]
            wfont_color.layout.display = VIS[int(widget.value)]
            self.display()
        widget.observe(visibility, "value")
        wcolor.observe(self.update_widget, "value")
        wfont_color.observe(self.update_widget, "value")
        visibility()