如何从Qtablewidget拖拽图片并添加到场景中？

from PyQt5.QtWidgets import QApplication, QMainWindow, QTableWidget, QTableWidgetItem, QGraphicsScene, QGraphicsView
from PyQt5.QtGui import QPixmap, QImage
from PyQt5.QtCore import Qt, QMimeData
from PIL import Image
import sys

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.tableWidget = QTableWidget(self)
        self.tableWidget.setDragEnabled(True)
        self.tableWidget.setRowCount(1)
        self.tableWidget.setColumnCount(1)

        # 添加图片到表格中
        image = Image.open("image.jpg")
        image = image.resize((100, 100), Image.ANTIALIAS)
        qimage = QImage(image.tobytes(), image.width, image.height, QImage.Format_RGB888)
        pixmap = QPixmap.fromImage(qimage)
        item = QTableWidgetItem()
        item.setData(Qt.DecorationRole, pixmap)
        self.tableWidget.setItem(0, 0, item)

        self.setCentralWidget(self.tableWidget)

        self.scene = QGraphicsScene(self)
        self.view = QGraphicsView(self.scene)
        self.setCentralWidget(self.view)

    def dragEnterEvent(self, event):
        if event.mimeData().hasFormat("image/jpeg"):
            event.accept()
        else:
            event.ignore()

    def dragMoveEvent(self, event):
        if event.mimeData().hasFormat("image/jpeg"):
            event.setDropAction(Qt.CopyAction)
            event.accept()
        else:
            event.ignore()

    def dropEvent(self, event):
        if event.mimeData().hasFormat("image/jpeg"):
            data = event.mimeData().data("image/jpeg")
            image = QImage.fromData(data, "image/jpeg")
            pixmap = QPixmap.fromImage(image)
            self.scene.addPixmap(pixmap)
            event.setDropAction(Qt.CopyAction)
            event.accept()
        else:
            event.ignore()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    mainWindow = MainWindow()
    mainWindow.show()
    sys.exit(app.exec_())