Drag/Drop: Drop indicator doesn't change for drags between QListView and QTableView

[mclark]

When dragging between a QListView and a QTableView the drop indicator does not change, so the QTableView::dropEvent() is never called when releasing the mouse button. But, debugging code in the QTableView::dragEnterEvent() states:

• DropAction: Qt::MoveAction
• DragDropMode: QAbstractItemView:: DropOnly
• DropIndicatorShown: TRUE
• DragDropOverwriteMode: TRUE

I have a QStandardModel that services both a QGraphicsScene/View and the QTableView (the table view is filled via QSortFilterProxyModel class. Drops into the QGraphicsScene work fine.

Any ideas about what I can do to get the QTableView to show a drop indicator and allow dropEvent() to be called?

For reference, this is my table view ctor.

SheetView::SheetView( QWidget* pParent ) : QTableView( pParent )
{
    setSelectionMode( QAbstractItemView::SingleSelection );
    setAcceptDrops( true );
    setDropIndicatorShown( true );
    setDragDropMode( QAbstractItemView::DropOnly );
    setDragDropOverwriteMode( true );
    setSelectionBehavior( QAbstractItemView::SelectRows );
}

SheetView::SheetView( QWidget* pParent ) : QTableView( pParent )
{
    setSelectionMode( QAbstractItemView::SingleSelection );
    setAcceptDrops( true );
    setDropIndicatorShown( true );
    setDragDropMode( QAbstractItemView::DropOnly );
    setDragDropOverwriteMode( true );
    setSelectionBehavior( QAbstractItemView::SelectRows );
}

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Qt Commercial 4.6.2
Windows XP SP3