Method executeDrag

lib/documentview/documentview.cpp:384–392

    }

    void executeDrag()
    {
        if (mDrag) {
            if (mAdapter->imageView()) {
                mAdapter->imageView()->resetDragCursor();
            }
            mDrag->exec(Qt::MoveAction | Qt::CopyAction | Qt::LinkAction, Qt::CopyAction);
        }
    }

    void initDragThumbnailProvider()
    {