GUI编程--PyQt5--QTreeWidget-编程知识

GUI编程--PyQt5--QTreeWidget

文章目录

树型控件展示数据
修改节点数据
获取所有节点的数据

Qt模组参考
QWidgets
QTreeWidget

树型控件展示数据

展示数据的同时，每个节点标注数据类型。
在这里插入图片描述


class MyWindow(QWidget):def __init__(self, title):super(MyWindow, self).__init__()self.setWindowTitle(title)self.resize(500, 300)self.set_ui()def set_ui(self):# 显示图片label = QLabel(self)label.setText("xxxxx")qimg = QPixmap("./bg.jpg")qimg.scaledToHeight(120)qimg.scaledToWidth(200)label.setPixmap(qimg)label.resize(200, 120)label.move(100, 200)# QTreeWidgetself.q_tree = QTreeWidget(self)self.q_tree.setColumnCount(3)self.q_tree.setHeaderLabels(["a", "b", "c"]) # 设置表头self.q_tree.setFixedWidth(500)self.q_tree.setFixedHeight(460)self.q_tree.move(80, 80)self.q_tree.itemDoubleClicked.connect(self.modify_slot)# 选择不同的节点时的信号# self.q_tree.currentItemChanged.connect(self.data_change_slot)# datadata = {"d1": {"name": "jack","age": 20,"friends": ["tom", "lucy"],"bid": [1, 3, 6]},"d2": [1.4, 3.2, 6.7],"d3": 3.14}# 展示数据self.show_data(data)def show_data(self, data):""" 展示数据 """for k, v in data.items():if isinstance(v, dict):node = QTreeWidgetItem(self.q_tree)node.type_ = dictnode.setText(0, k)self.show_dict(v, node)elif isinstance(v, list):node = QTreeWidgetItem(self.q_tree)node.type_ = listnode.setText(0, k)self.show_list(k, v, node)else:node = QTreeWidgetItem(self.q_tree)node.type_ = type(v)node.setText(0, k)node.setText(1, str(v))def show_list(self, key, data, root):""" 展示列表 """for idx, v in enumerate(data):if isinstance(v, dict):node = QTreeWidgetItem(root)node.type_ = dictnode.setText(0, str(idx))self.show_dict(v, node)elif isinstance(v, list):node = QTreeWidgetItem(root)node.type_ = listnode.setText(0, str(idx))self.show_list(idx, v, node)else:node = QTreeWidgetItem(root)node.type_ = type(v)node.setText(0, key + f"[{root.childCount() - 1}]")node.setText(1, str(v))def show_dict(self, data, root):""" 递归展示字典 """for k, v in data.items():if isinstance(v, dict):node = QTreeWidgetItem(root)node.type_ = dictnode.setText(0, k)self.show_dict(v, node)elif isinstance(v, list):node = QTreeWidgetItem(root)node.type_ = listnode.setText(0, k)self.show_list(k, v, node)else:node = QTreeWidgetItem(root)node.type_ = type(v)node.setText(0, k)node.setText(1, str(v))def data_change_slot(self, *args):print("args:", args)def modify_slot(self, treeWidgetItem, idx):cur_value = treeWidgetItem.text(idx)print("cur_value:", cur_value, treeWidgetItem.type_)# 设置节点可编辑treeWidgetItem.setFlags(treeWidgetItem.flags() | Qt.ItemIsEditable)# 设置编辑框的样式# QTreeWidgetItem