How to Drag & Drop from QFileSystemModel QTreeView to Custom QTreeView

pvt.peter

Hi Everybody,

I have got a custom QTreeView which represents a folder structure with feature of internal drag & drop (based on Full drag and drop support in QTreeView).
I have got an other QTreeView which has got a QFileSystemModel model.
I would like to implement drag from QFileSystemModel QTreeView to Custom QTreeView.
It is only a one-way "channel", so i don't want to drag an item from Custom QTreeView to QFileSystemModel QTreeView.

Further informations:

acceptDrops property is true both of them
showDropIndicator property is true both of them
dragEnabled property is true both of them
dragDropMode property is CopyAction both of them

Custom QTreeView's model has got the next overridden methods:

Qt::DropActions TreeModel::supportedDropActions() const
{
   return Qt::MoveAction;
}

Qt::DropActions TreeModel::supportedDragActions() const
{
   return Qt::MoveAction;
}
Qt::ItemFlags TreeModel::flags(const QModelIndex &index) const
{
   if (!index.isValid())
   {
      return Qt::ItemIsDropEnabled;
   }
   return QAbstractItemModel::flags(index) | Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled;
}

How can i drag(copy) an item from QFileSystemModel QTreeView to Custom QTreeView?

BR,
Peter

SGaist

Hi,

Take a look at the drag and drop part of the model view programming chapter in Qt's documentation.