draggableicons.py 文件源码

def dropEvent(self, event):
        if event.mimeData().hasFormat('application/x-dnditemdata'):
            itemData = event.mimeData().data('application/x-dnditemdata')
            dataStream = QDataStream(itemData, QIODevice.ReadOnly)

            pixmap = QPixmap()
            offset = QPoint()
            dataStream >> pixmap >> offset

            newIcon = QLabel(self)
            newIcon.setPixmap(pixmap)
            newIcon.move(event.pos() - offset)
            newIcon.show()
            newIcon.setAttribute(Qt.WA_DeleteOnClose)

            if event.source() == self:
                event.setDropAction(Qt.MoveAction)
                event.accept()
            else:
                event.acceptProposedAction()
        else:
            event.ignore()