让QTreeWidget/QTreeView的项显示内容换行并自动调整行高

使用QLabel并且对tree调用setItemWidget将QLabel设置为项的Widget

QTreeWidget的示例代码：

ui->treeWidget->setColumnCount(2);

ui->treeWidget->setHeaderLabels(QStringList({"Property Name", "Property Value"}));

QTreeWidgetItem *itemTop = new QTreeWidgetItem(QStringList({"Adapter"}));

ui->treeWidget->addTopLevelItem(itemTop);

QTreeWidgetItem *item = new QTreeWidgetItem(itemTop, QStringList({"IP Address"}));

QLabel *label = new QLabel("192.168.1.100", ui->treeWidget);

label->setWordWrap(true);

ui->treeWidget->setItemWidget(item, 1, label);