How to add text-decoration under the text in a QTreeWidgetItem?

[Limer]

Just like below,

I have a QTreeWidget, and I want set the text-decoration: underline like css in a QTreeWidgetItem when I hover over it, but qss don't suport the text-decoration, can someone give me any advice?

[VRonin]

In the same slot in which you change the cursor call

QFont oldFont = treeItem->data(0,Qt::FontRole).value<QFont>();
oldFont.setUnderline(!oldFont.underline());
treeItem->setData(0,Qt::FontRole,oldFont);

[Limer]

@VRonin Thanks a lot ,, successed.