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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
from __future__ import annotations
import sys
from itertools import chain
from PySide6.QtCore import QAbstractTableModel, Qt, Signal, Slot
from PySide6.QtWidgets import QApplication, QMainWindow, QTableView
"""PySide6 port of the widgets/tutorials/modelview/5_edit example from Qt v6.x"""
COLS = 3
ROWS = 2
class MyModel(QAbstractTableModel):
editCompleted = Signal(str)
def __init__(self, parent=None):
super().__init__(parent)
self._grid_data = [["" for y in range(COLS)] for x in range(ROWS)]
def rowCount(self, parent=None):
return ROWS
def columnCount(self, parent=None):
return COLS
def data(self, index, role=Qt.ItemDataRole.DisplayRole):
if role == Qt.ItemDataRole.DisplayRole and self.checkIndex(index):
return self._grid_data[index.row()][index.column()]
return None
#! [1]
def setData(self, index, value, role):
if role != Qt.ItemDataRole.EditRole or not self.checkIndex(index):
return False
# save value from editor to member m_gridData
self._grid_data[index.row()][index.column()] = value
# for presentation purposes only: build and emit a joined string
result = " ".join(chain(*self._grid_data))
self.editCompleted.emit(result)
return True
#! [1]
#! [2]
def flags(self, index):
return Qt.ItemIsEditable | super().flags(index)
#! [2]
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self._table_view = QTableView(self)
self.setCentralWidget(self._table_view)
my_model = MyModel(self)
self._table_view.setModel(my_model)
# transfer changes to the model to the window title
my_model.editCompleted.connect(self.show_window_title)
@Slot(str)
def show_window_title(self, title):
self.setWindowTitle(title)
if __name__ == '__main__':
app = QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec())
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