如何在 PyQt5 的 QTableWidget 中复制和粘贴多个单元格？

Question

我有一个如下所示的 Qtablewidget。 我想从表格中复制多个单元格并粘贴到同一张表格的其他行中。

到目前为止，我可以在单个单元格上做同样的事情，但是有没有办法我可以同时做多个单元格？

另外，如果可能的话，复制多行并将其粘贴到下面的同一张表中？

我尝试在 SO 中查看一些答案，但并没有在 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 Class：

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

这是一个子类化 QTableWidget 的解决方案。 您必须重新实现keyPressEvent ，以捕获复制和粘贴键序列。 在复制时，使用QTableWidget.selectedIndexes()保存当前选定的项目。 粘贴时，为列表中的每个单元格设置一个新的 QTableWidgetItem，将索引转换为新突出显示的索引。 它将粘贴所有突出显示的单元格，它们不需要在同一行中。 它假定具有最小索引的单元格将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_())

Answer 2

这是为 PyQt6 编写并支持复制到剪贴板的解决方案，以便您可以将 QTableWidget 中的多个单元格选择粘贴到流行的电子表格程序中，例如 Google Sheets、Apple Numbers 或 Microsoft excel。 这些程序需要制表符 ('\\t') 分隔新列和换行符 ('\\n') 分隔新行

from PyQt6.QtCore import *
from PyQt6.QtWidgets import *
from PyQt6.QtGui import *

import sys

class TableWithCopy(QTableWidget):
    """
    this class extends QTableWidget
    * supports copying multiple cell's text onto the clipboard
    * formatted specifically to work with multiple-cell paste into programs
      like google sheets, excel, or numbers
    """

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

    def keyPressEvent(self, event):
        super().keyPressEvent(event)
        if event.key() == Qt.Key.Key_C and (event.modifiers() & Qt.KeyboardModifier.ControlModifier):
            copied_cells = sorted(self.selectedIndexes())

            copy_text = ''
            max_column = copied_cells[-1].column()
            for c in copied_cells:
                copy_text += self.item(c.row(), c.column()).text()
                if c.column() == max_column:
                    copy_text += '\n'
                else:
                    copy_text += '\t'
                    
            QApplication.clipboard().setText(copy_text)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    gui = TableWithCopy()
    gui.setColumnCount(10)
    gui.setRowCount(10)
    gui.show()
    sys.exit(app.exec())

Answer 3

要使用粘贴 function 稍微扩展 boochbrain answere（在我的用例中，我需要数据覆盖所有行和列，然后粘贴它）：

from PyQt6.QtCore import *
from PyQt6.QtWidgets import *
from PyQt6.QtGui import *

import sys

class TableWithCopy(QTableWidget):
    """
    this class extends QTableWidget
    * supports copying multiple cell's text onto the clipboard
    * formatted specifically to work with multiple-cell paste into programs
      like google sheets, excel, or numbers
    """

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

    def keyPressEvent(self, event):
        super().keyPressEvent(event)
        if event.key() == Qt.Key.Key_C and (event.modifiers() & Qt.KeyboardModifier.ControlModifier):
            copied_cells = sorted(self.selectedIndexes())

            copy_text = ''
            max_column = copied_cells[-1].column()
            for c in copied_cells:
                copy_text += self.item(c.row(), c.column()).text()
                if c.column() == max_column:
                    copy_text += '\n'
                else:
                    copy_text += '\t'
                    
            QApplication.clipboard().setText(copy_text)

        if event.key() == Qt.Key_V and (event.modifiers() & Qt.KeyboardModifier.ControlModifier):
            rows = QApplication.clipboard().text().split('\n')[:-1]
            if len(rows) == 0:
                return
            if len(rows) != self.rowCount() or len(rows[0].split('\t')) != self.columnCount():
                QMessageBox.information(None, 'Error', 'The pasted data does not contain the correct data')
                return
            self.clear()
            self.setRowCount(len(rows))
            self.setColumnCount(len(rows[0].split('\t')))
            for i, row in enumerate(rows):
                row = row.split('\t')
                item1 = QTableWidgetItem(row[0])
                item2 = QTableWidgetItem(row[1])
                self.setItem(i, 0, item1)
                self.setItem(i, 1, item2)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    gui = TableWithCopy()
    gui.setColumnCount(10)
    gui.setRowCount(10)
    gui.show()
    sys.exit(app.exec())