【发布时间】:2021-09-15 17:35:33
【问题描述】:
我在 GUI 中使用Pyqt5 中的QTableView 显示数据框。我应该如何对其进行编码,以便用户可以同时复制粘贴多行/列以及行索引(用于行)和标题(用于列)?
我在下面举了一个简单的例子。我假设我们需要一个QTableView 的子类并为它定义一个keyPressEvent。
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import Qt
import pandas as pd
class TableModel(QtCore.QAbstractTableModel):
def __init__(self, data):
super(TableModel, self).__init__()
self._data = data
def data(self, index, role):
if role == Qt.DisplayRole:
value = self._data.iloc[index.row(), index.column()]
return str(value)
def rowCount(self, index):
return self._data.shape[0]
def columnCount(self, index):
return self._data.shape[1]
def headerData(self, section, orientation, role):
# section is the index of the column/row.
if role == Qt.DisplayRole:
if orientation == Qt.Horizontal:
return str(self._data.columns[section])
if orientation == Qt.Vertical:
return str(self._data.index[section])
class View(QTableView):
def __init__(self):
super(View, self).__init__(parent=None)
def keyPressEvent(self, event):
if event.matches(QKeySequence.Copy):
# some code to get copy_text?
QApplication.clipboard().setText(copy_text)
QTableView.keyPressEvent(self, event)
class MainWindow(QtWidgets.QMainWindow):
def __init__(self):
super().__init__()
self.table = View() # use subclass View() instead of self.table = QtWidgets.QTableView()
data = pd.DataFrame([
[1, 9, 2],
[1, 0, -1],
[3, 5, 2],
[3, 3, 2],
[5, 8, 9],
], columns = ['A', 'B', 'C'], index=['Row 1', 'Row 2', 'Row 3', 'Row 4', 'Row 5'])
self.model = TableModel(data)
self.table.setModel(self.model)
self.setCentralWidget(self.table)
app=QtWidgets.QApplication(sys.argv)
window=MainWindow()
window.show()
app.exec_()
【问题讨论】:
标签: python dataframe user-interface pyqt5 qtableview