如何在 PyQt5 中的 QTableWidget 中复制和粘贴多个单元格？

Question

我有一个 Qtablewidget，如下所示。我想从表中复制多个单元格并粘贴到同一个表中的其他行中。

到目前为止，我可以在单个单元上执行相同的操作，但是有没有办法可以同时执行多个单元？

另外，如果可能的话，复制多行并将其粘贴到下面的同一个表中？

我尝试查看 SO 中的一些答案，但没有在 PyQt5 中实现它。

提前致谢。

示例代码（由 QtDesigner 提供）：

from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(1048, 600)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.tableWidget = QtWidgets.QTableWidget(self.centralwidget)
        self.tableWidget.setGeometry(QtCore.QRect(40, 40, 861, 511))
        self.tableWidget.setEditTriggers(QtWidgets.QAbstractItemView.AnyKeyPressed|QtWidgets.QAbstractItemView.DoubleClicked|QtWidgets.QAbstractItemView.EditKeyPressed)
        self.tableWidget.setRowCount(5)
        self.tableWidget.setColumnCount(5)
        self.tableWidget.setObjectName("tableWidget")
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(0, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(1, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(2, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(3, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(4, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(0, 0, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(0, 1, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(0, 2, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(0, 3, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(0, 4, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(1, 0, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(1, 1, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(1, 2, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(1, 3, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(1, 4, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(2, 0, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(2, 1, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(2, 2, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(2, 3, item)
        item = QtWidgets.QTableWidgetItem()
        self.tableWidget.setItem(2, 4, item)
        self.tableWidget.horizontalHeader().setVisible(True)
        self.tableWidget.verticalHeader().setVisible(False)
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        item = self.tableWidget.horizontalHeaderItem(0)
        item.setText(_translate("MainWindow", "Name"))
        item = self.tableWidget.horizontalHeaderItem(1)
        item.setText(_translate("MainWindow", "ID"))
        item = self.tableWidget.horizontalHeaderItem(2)
        item.setText(_translate("MainWindow", "City"))
        item = self.tableWidget.horizontalHeaderItem(3)
        item.setText(_translate("MainWindow", "Number"))
        item = self.tableWidget.horizontalHeaderItem(4)
        item.setText(_translate("MainWindow", "Occupation"))
        __sortingEnabled = self.tableWidget.isSortingEnabled()
        self.tableWidget.setSortingEnabled(False)
        item = self.tableWidget.item(0, 0)
        item.setText(_translate("MainWindow", "Mark"))
        item = self.tableWidget.item(0, 1)
        item.setText(_translate("MainWindow", "1"))
        item = self.tableWidget.item(0, 2)
        item.setText(_translate("MainWindow", "Newyork"))
        item = self.tableWidget.item(0, 3)
        item.setText(_translate("MainWindow", "4796423643344"))
        item = self.tableWidget.item(0, 4)
        item.setText(_translate("MainWindow", "Teacher"))
        item = self.tableWidget.item(1, 0)
        item.setText(_translate("MainWindow", "Taylor"))
        item = self.tableWidget.item(1, 1)
        item.setText(_translate("MainWindow", "2"))
        item = self.tableWidget.item(1, 2)
        item.setText(_translate("MainWindow", "Chicago"))
        item = self.tableWidget.item(1, 3)
        item.setText(_translate("MainWindow", "43683284"))
        item = self.tableWidget.item(1, 4)
        item.setText(_translate("MainWindow", "Nurse"))
        self.tableWidget.setSortingEnabled(__sortingEnabled)


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

派生类：

from PyQt5 import QtWidgets

from demo import Ui_MainWindow

class demo_code(QtWidgets.QMainWindow, Ui_MainWindow):                    
    def __init__(self):
        super(demo_code, self).__init__()
        self.setupUi(self) 



if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    window = demo_code()    
    window.show()
    sys.exit(app.exec_())

Answer 1

这是 QTableWidget 子类化的解决方案。您必须重新实现keyPressEvent, 才能捕获复制和粘贴按键序列。复制时，用 保存当前选定的项目QTableWidget.selectedIndexes()。粘贴时，为列表中的每个单元格设置一个新的 QTableWidgetItem，将索引转换为新的突出显示索引。它将粘贴所有突出显示的单元格，它们不需要位于同一行。它假设具有最小索引的单元格将被放置在粘贴时突出显示的单元格中。

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *

class Table(QTableWidget):

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.setRowCount(10)
        self.setColumnCount(10)
        # etc.

    def keyPressEvent(self, event):
        super().keyPressEvent(event)
        if event.key() == Qt.Key_C and (event.modifiers() & Qt.ControlModifier):
            self.copied_cells = sorted(self.selectedIndexes())
        elif event.key() == Qt.Key_V and (event.modifiers() & Qt.ControlModifier):
            r = self.currentRow() - self.copied_cells[0].row()
            c = self.currentColumn() - self.copied_cells[0].column()
            for cell in self.copied_cells:
                self.setItem(cell.row() + r, cell.column() + c, QTableWidgetItem(cell.data()))

if __name__ == '__main__':
    app = QApplication(sys.argv)
    gui = Table()
    gui.show()
    sys.exit(app.exec_())