How to set the cursor to pointer when the mouse hovers over QTreeWidgetItem in a QTreeWidget?

[Limer]

Just like below:

I use the qss,

QTreeWidget::item:hover, QTreeWidget::branch:hover
{
    color: rgb(43, 179, 246);
    cursor: pointer;
}

but, qt don't support the property cursor.

So I want to use setCursor, but QTreeWidgetItem is not a widget.....

So, someone can give me any advice ?

[raven-worx]

@Limer
either you can install an eventFilter on the QTreeWidget and catch the mouse move/hover events, and check the index/item at the corresponding position using QTreeWidget::itemAt()/QTreeWidget::indexAt() and call setCursor() and unsetCursor() on leave event.

Or you can sublcass QTreeWidget and follow the same pattern for the event filter.

[Limer]

@raven-worx

I tried it,

bool MainWindow::eventFilter(QObject* watched, QEvent* event)
{
    if (watched == m_treeWidget)
    {
        if (event->type() == QEvent::HoverMove)
        {
            QMouseEvent* e = static_cast<QMouseEvent*>(event);

            // qDebug() << e->globalPos();

            if (m_treeWidget->itemAt(m_treeWidget->viewport()->mapFromGlobal(e->globalPos())))
                m_treeWidget->setCursor(Qt::PointingHandCursor);
            else
                m_treeWidget->setCursor(Qt::ArrowCursor);

            return true;
        }
    }

    return QMainWindow::eventFilter(watched, event);
}

But, it didn't work.

I printed the pos(), found that the position wouldn't vary when I moved the mouse.

[raven-worx]

@Limer said in How to set the curtor to pointer when the mouse hovers over QTreeWidgetItem in a QTreeWidget?:

But, it didn't work.

more specifically?
Did the event filter get called at all?
Did you catch the HoverMove event?

You can also try to install the event filter on the viewport() widget instead.

[Limer]

@raven-worx Maybe because the treewidget's parent is a qmainwindow, and i tried many ways to enable the mousetracking,but failed.

So , i subclass the qtreewidget, redefine the mouseMoveEvent ,and it successed.

Thanks a lot! ~