nodes.py 文件源码

def load_metadata(self):
        """
        Loads this node's metadata which is stored in a child comment encoded in json.
        """
        for child in self:
            if type(child) is NodeComment:
                if child.text.startswith("<designer.metadata.do.not.edit>"):
                    try:
                        self.metadata = decode(child.text.split(maxsplit=1)[1])
                    except JSONDecodeError:
                        continue

        self.model_item.setText(self.metadata.get("name", self.update_item_name()))
        self.user_sort_order = self.metadata.get("user_sort", "0".zfill(7))
        if not self.hidden_children:
            hidden_nodes = self.metadata.get("hidden_nodes", [])
            for node_string in hidden_nodes:
                node_string = node_string.replace("<!- -", "<!--").replace("- ->", "-->")
                node = copy_node(etree.fromstring(node_string), self)  # type: _NodeElement
                self.add_child(node) if node.tag is not etree.Comment else self.append(node)
                node.set_hidden(True)
                self.sort()
                self.model_item.sortChildren(0)