How to know user select item by mouse move?

[qazaq408]

Qt5.15+vs2019

QTableView + model

The step:

1. MouseClicked in QModelIndex(0,0)
2. move mouse
3. MouseRelease in QModelIndex(0,3)

Now ,there are four items in the first column is actived(Maybe selected,i just know the background-color of these item is blue,and the other is white). So I want to know which items are selected.

The first ,i use SIGNAL actived(const QModelIndex),but the SLOT can't receive any index.

And then i try to inherit QTableView and reimplement MouseEvent,it looks like

void MyTableView::mouseReleased(QMouseEvent event){
    //How to find all item that choosed by MouseMove?
    event->accept();
}

Do you have any better idea?

[JonB]

@qazaq408
Before you go anywhere near mouse move/click, why aren't you using the item selection model, like void QTableView::selectionChanged(const QItemSelection &selected, const QItemSelection &deselected) or (preferable) the signal void QItemSelectionModel::selectionChanged(const QItemSelection &selected, const QItemSelection &deselected) on the table view's QItemSelectionModel *QAbstractItemView::selectionModel() const?

[Hanson]

@qazaq408
You can use QItemSelectionModel to get selected items, just like this

QModelIndexList indexList = tableView->selectionModel()->selectedIndexes();

https://doc.qt.io/qt-6/qitemselectionmodel.html#selectedIndexes
https://doc.qt.io/qt-6/qitemselectionmodel.html#selectedColumns
https://doc.qt.io/qt-6/qitemselectionmodel.html#selectedRows

[qazaq408]

@JonB

THAKN YOU!

You save me !