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#############################################################################
##
## Copyright (C) 2022 The Qt Company Ltd.
## Contact: https://www.qt.io/licensing/
##
## This file is part of the Qt for Python examples of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
## * Neither the name of The Qt Company Ltd nor the names of its
## contributors may be used to endorse or promote products derived
## from this software without specific prior written permission.
##
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
##
## $QT_END_LICENSE$
##
#############################################################################
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.DisplayRole):
if role == Qt.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.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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