Drag and drop QTreeWidgetItem to QTableWidget

Hi

I'm trying to drag a QTreeWidgetItem from a custom QTreeWidget into a QTableWidget.
My problem is that i always have the forbiden cursor when I'm on the QTableWidget, and I never received the "drop" event!

This is the code in my custom QTreeWidget

Code:

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void QTreeWidgetDragDrop::mousePressEvent(QMouseEvent *event)
{
    // Get current selection
    QTreeWidgetItem *selectedItem = currentItem();
 
    // If the selected Item exists
    if (selectedItem)
    {
        // Create data
        QMimeData *mimeData = new QMimeData();
        mimeData->setText("hello");
 
        // Create drag
        QDrag *drag = new QDrag(this);
        drag->setMimeData(mimeData);
 
        drag->exec(Qt::CopyAction);
     }
 
    QTreeWidget::mousePressEvent(event);
}

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and this is the code I have in my custom QTableWidget

Code:

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void QTableWidgetDragDrop::dragEnterEvent(QDragEnterEvent *event)
{
    qDebug() << "dragEnterEvent text: " << event->mimeData()->text();
 
    // Allways accept at first
    event->acceptProposedAction();
 
    QTableWidget::dragEnterEvent(event);
}

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And this is the function to catch the drop event

Code:

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void QTableWidgetDragDrop::dropEvent(QDropEvent *event)
{
qDebug() << "enter in dropEvent";
}

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I cannot drop my item because I have the forbiden cursor, I never see the sentence "enter in dropEvent" but I have in output

Quote:

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dragEnterEvent text: "hello"

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In addition, I have put in my QTableWidget constructor:

Code:

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this->setAcceptDrops(true);

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Any idea ...?

try to reimplement

Code:

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QTableWidgetDragDrop::dragMoveEvent(...)

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and accept event here too

can you try it in debug mode and check all events?

I have already implemented dragMoveEvent, but I don't receive the event too...
I'll try to check events in debug mode, I have to learn how the debug mode works.

The call of "QAbstractItemView::dragEnterEvent" (in the mother class) contains

Code:

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if (d_func()->canDecode(event)) {
        event->accept();
        setState(DraggingState);
    } else {
        event->ignore();
    }

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But, I saw in debug that it always goes in "event->ignore();", I have to work on that point ...

=> http://doc.trolltech.com/4.2/model-v...bclassing.html part "Drag and Drop Support and MIME Type Handling"

I figured out!
My problem was what I found: I didn't set a model, and I didn't put my data into the default model!
So I put my data into the default model, and now I can see all my events!
My next step is to create my own model!

(You can put this thread as resolved ;) )

Thanks for your help ;)

Code:

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void QTreeWidgetDragDrop::mousePressEvent(QMouseEvent *event)
{
    // Get current selection
    QTreeWidgetItem *selectedItem = currentItem();
 
    // If the selected Item exists
    if (selectedItem)
    {
        QByteArray itemData;
        QDataStream dataStream(&itemData, QIODevice::WriteOnly);
        dataStream << "Hello";
 
        QMimeData *mimeData = new QMimeData;
        mimeData->setData("application/x-qabstractitemmodeldatalist", itemData);
 
        // Create drag
        QDrag *drag = new QDrag(this);
        drag->setMimeData(mimeData);
 
 
        qDebug() << "mousePressEvent before exec";
        drag->exec(Qt::CopyAction);
        qDebug() << "mousePressEvent after exec";
    }
 
    QTreeWidget::mousePressEvent(event);
}

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