QListWidget drag&drop

Sibyx

Hi,
i have 3 instances of object based on QListWidget (on picture boxes with gray borders). In one of this widgets are items with icons and a need move this items to other widgets, without copying. How to? Thanks!
!http://mksoft.marconet.sk/pics/SOC-forum.jpg(Preview)!

tucnak

New Year on the street! Wait with dev. It is whole 2012 year in front of you!

Sibyx

I'm from Slovakia and I had new year 14 hours earlier, and I need finish this project before end of January. I have a lot of work :)

Sibyx

I'm also tried this:
@
void ListBox::startDrag(Qt::DropActions supportedActions)
{
QListWidget::startDrag(supportedActions);
delete this->currentItem();
}
@
Now it works, but it has one problem, if is drop unsuccessfull, item is deleted too. I don't know how to solve this. How I can access to data of dragged QListWidgetItem?

Sibyx

I solved this, here is my code:
@
void ListBox::dragMoveEvent(QDragMoveEvent *e)
{
if (e->mimeData()->hasFormat("application/x-item") && e->source() != this) {
e->setDropAction(Qt::MoveAction);
e->accept();
} else
e->ignore();
}

void ListBox::dropEvent(QDropEvent *event)
{
if (event->mimeData()->hasFormat("application/x-item")) {
event->accept();
event->setDropAction(Qt::MoveAction);
QListWidgetItem *item = new QListWidgetItem;
QString name = event->mimeData()->data("application/x-item");
item->setText(name);
/if (provider->getColumnType(name) == "text") {
item->setIcon(QIcon(":/images/iString"));
}
else {
item->setIcon(QIcon(":/images/iInteger"));
}/
addItem(item);
} else
event->ignore();
}

void ListBox::startDrag(Qt::DropActions supportedActions)
{
QListWidgetItem *item = currentItem();
QMimeData *mimeData = new QMimeData;
QByteArray ba;
ba = item->text().toLatin1().data();
mimeData->setData("application/x-item", ba);
QDrag *drag = new QDrag(this);
drag->setMimeData(mimeData);
if (drag->exec(Qt::MoveAction) == Qt::MoveAction)
delete takeItem(row(item));
}

void ListBox::dragEnterEvent(QDragEnterEvent *event)
{
if (event->mimeData()->hasFormat("application/x-item"))
event->accept();
else
event->ignore();
}

Qt::DropAction ListBox::supportedDropActions()
{
return Qt::MoveAction;
}
@