QTreeView设置显示连接线

QTreeView设置显示连接线

方法一：应用windows风格

• 直接调用ui->treeview->setStyle(QStyleFactory::create("windows"));
• 问题是这样会影响其他qss的生效，而且比较丑。

方法二：自定义qss

QTreeView::branch:has-siblings:!adjoins-item {border-image: url(vline.png) 0;
}QTreeView::branch:has-siblings:adjoins-item {border-image: url(branch-more.png) 0;
}QTreeView::branch:!has-children:!has-siblings:adjoins-item {border-image: url(branch-end.png) 0;
}QTreeView::branch:has-children:!has-siblings:closed,
QTreeView::branch:closed:has-children:has-siblings {border-image: none;image: url(branch-closed.png);
}QTreeView::branch:open:has-children:!has-siblings,
QTreeView::branch:open:has-children:has-siblings  {border-image: none;image: url(branch-open.png);
}

详情请查看链接：https://doc.qt.io/qt-5/stylesheet-examples.html#customizing-qtreeview