Highlight item with mouse hover in QTreeView?

Question

I have a QStandardItemModel that I am displaying as a QTreeView with multiple columns. How can I make it highlight rows when the mouse hovers over them?

Related pages

• How to catch mouse over event of QTableWidget item in pyqt?: similar question using QTableWidget instead of Q*View.
• Customizing QListView: suggests it is possible to do it very easily with stylesheets, but I don't quite follow the c++.
• How to highlight the entire row on mouse hover in QTableWidget
• QListView selection with highlight/hover

Cyndicyndia

Doesn't QTreeView highlight items by default on mouse hover? – Erotomania

@LahiruChandima No. – Cyndicyndia

Answer 1

You can achieve this by a stylesheet

treeView->setStyleSheet("QTreeView::item:hover{background-color:#FFFF00;}");

Erotomania

Answer 2

Lahiru's answer is easy to translate to PyQt/PySide, as the input to setStyleSheet doesn't need any modification: it is the same in Qt/PyQt/PySide:

treeView.setStyleSheet("QTreeView::item:hover{background-color:#999966;}")

I found it helpful to read the Overview of style sheet syntax for Qt. Also, this answer has some nice examples on using style sheets in PySide/PyQt.

Cyndicyndia