QTableWidget - get column/row from under mouse ?

[Dariusz]

Hey

I'd like to print current row/column from under mouse position (in mouse move event) as well as item. I know I can get itemAt(event->pos()) for item, but if there is no item there I get null, how can I check what column/row that cursor is in now?

TIA

[SGaist]

Hi,

Can you show the current code you are using ?

[Dariusz]

Actually I found out that I need cellEntered signal, but that does not happen as I'm dragging data in to the view, I just want to know whats under my mouse and if I need to make new cell/new data widget in cell or drop in to existing data widget in cell.

Not much code yet... except for basic QDropEvent()/dragEnterEvent/dragMoveEvent events...

[SGaist]

The events you get as parameter gives you the position of the cursor. So you can check what's under it more precisely.

[mrjj]

Hi
You can use
https://doc.qt.io/qt-5/qtablewidget.html#itemAt-1
to get item under the cursor.
You can then ask Item for Col/row if u need that.

[Dariusz]

@mrjj said in QTableWidget - get column/row from under mouse ?:

Hi
You can use
https://doc.qt.io/qt-5/qtablewidget.html#itemAt-1
to get item under the cursor.
You can then ask Item for Col/row if u need that.

This return null if there is no item in column.

@SGaist said in QTableWidget - get column/row from under mouse ?:

The events you get as parameter gives you the position of the cursor. So you can check what's under it more precisely.

I get no event when I'm dragging in a data from other widget/view/source.

[SGaist]

Can you show your current implementation ?

[Dariusz]

filterDropIndator() is where I try to figure out the position of the mouse...

void TableWidget::dragEnterEvent(QDragEnterEvent *event) {
    if (event->source() == this) {
        qDebug() << "Internal";
        setDragDropMode(QAbstractItemView::InternalMove);
    } else {
        qDebug() << "External";
        setDragDropMode(QAbstractItemView::DropOnly);
    }
    if (event->mimeData()->hasFormat("templateItemDrag")) {
        qDebug() << "111" << event << "\n3213213" << event->proposedAction() << event->possibleActions() << event->dropAction();
        event->acceptProposedAction();
    }
    //QAbstractItemView::dragEnterEvent(event);
}
void TableWidget::dragMoveEvent(QDragMoveEvent *event) {
    event->accept();
    filterDropIndator(event);
    //QAbstractItemView::dragMoveEvent(event);
}
void TableWidget::dragLeaveEvent(QDragLeaveEvent *event) {
    QAbstractItemView::dragLeaveEvent(event);
}
void TableWidget::dropEvent(QDropEvent *event) {
    qDebug() << "yay ?v3whyg345hg3w";
    if (event->mimeData()->hasFormat("templateItemDrag")) {
        qDebug() << "2132145215215";
        event->acceptProposedAction();
        return;
    }
    QTableWidget::dropEvent(event);
}
TableWidget::TableWidget(QWidget *parentPtr) : QTableWidget(parentPtr) {
    setAcceptDrops(true);
    setDragEnabled(true);
    //viewport()->setAcceptDrops(true);
    //setDragDropOverwriteMode(false);
    setDropIndatorShown(true);
    setDefaultDropAction(Qt::MoveAction);
    setColumnCount(10);
    setRowCount(1);
    connect(this, &QTableWidget::cellEntered, this, &TableWidget::newMousePos);
}
TableWidget::~TableWidget() {

}
void TableWidget::filterDropIndator(QDragMoveEvent *event) {
    auto *w = itemAt(event->pos());
    if (w) {

    } else {
        qDebug() << "Row pos/col = " << mRow << mColumn;
    }
    qDebug() << "filtering indator :" << w;

}
void TableWidget::newMousePos(int row, int column) {
    mRow = row;
    mColumn = column;
}

[Dariusz]

Ok solved, Im gigantic NUB. I used itemAt instead of indexAt and took me a while to notice it... everything works! thanks!!!