How to make an icon widget draggable

Hello everybody,

I have an icon widget, and I want to make this widget be draggable which means when user press the mouse on this widget and drag it, this icon shall be moved under the mouse and until the mouse was release.

I was trying to use the drag and drop mechanism to implement this feature, only to find that it can't give me what I need. Please see my code in the following section,

Code:

void DragWidget::dragMoveEvent(QDragMoveEvent *event)
{
if (event->mimeData()->hasFormat("application/x-dnditemdata")) {

QByteArray itemData = event->mimeData()->data("application/x-dnditemdata");
QDataStream dataStream(&itemData, QIODevice::ReadOnly);

QPixmap pixmap;
QPoint offset;
dataStream >> pixmap >> offset;

//QLabel *newIcon = new QLabel(this);
//newIcon->setPixmap(pixmap);
//repaint();
//newIcon->show();
//newIcon->setAttribute(Qt::WA_DeleteOnClose);

if (event->source() == this) {
event->setDropAction(Qt::MoveAction);
event->accept();
} else {
event->acceptProposedAction();
}

move(event->pos() - offset);
}
else {
event->ignore();
}
}

void DragWidget::dropEvent(QDropEvent *event)
{
if (event->mimeData()->hasFormat("application/x-dnditemdata")) {
QByteArray itemData = event->mimeData()->data("application/x-dnditemdata");
QDataStream dataStream(&itemData, QIODevice::ReadOnly);

QPixmap pixmap;
QPoint offset;
dataStream >> pixmap >> offset;

QLabel *newIcon = new QLabel(this);
newIcon->setPixmap(pixmap);
newIcon->move(event->pos() - offset);
newIcon->show();
newIcon->setAttribute(Qt::WA_DeleteOnClose);

if (event->source() == this) {
event->setDropAction(Qt::MoveAction);
event->accept();
} else {
event->acceptProposedAction();
}
} else {
event->ignore();
}
}

Can someone help me out?