diff options
Diffstat (limited to 'examples/widgets/tutorials/modelview/3_changingmodel.py')
-rw-r--r-- | examples/widgets/tutorials/modelview/3_changingmodel.py | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/examples/widgets/tutorials/modelview/3_changingmodel.py b/examples/widgets/tutorials/modelview/3_changingmodel.py new file mode 100644 index 000000000..aab0e04c6 --- /dev/null +++ b/examples/widgets/tutorials/modelview/3_changingmodel.py @@ -0,0 +1,84 @@ +############################################################################# +## +## 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 PySide6.QtCore import QAbstractTableModel, QTime, QTimer, Qt, Slot +from PySide6.QtWidgets import QApplication, QTableView + +"""PySide6 port of the widgets/tutorials/modelview/3_changingmodel example from Qt v6.x""" + + +class MyModel(QAbstractTableModel): + def __init__(self, parent=None): + super().__init__(parent) + self._timer = QTimer(self) + self._timer.setInterval(1000) + self._timer.timeout.connect(self.timer_hit) + self._timer.start() + + def rowCount(self, parent=None): + return 2 + + def columnCount(self, parent=None): + return 3 + + def data(self, index, role=Qt.DisplayRole): + row = index.row() + col = index.column() + if role == Qt.DisplayRole and row == 0 and col == 0: + return QTime.currentTime().toString() + return None + + @Slot() + def timer_hit(self): + # we identify the top left cell + top_left = self.createIndex(0, 0) + # emit a signal to make the view reread identified data + self.dataChanged.emit(top_left, top_left, [Qt.DisplayRole]) + + +if __name__ == '__main__': + app = QApplication(sys.argv) + table_view = QTableView() + my_model = MyModel() + table_view.setModel(my_model) + table_view.show() + sys.exit(app.exec()) |