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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 PySide6.QtCore import Qt
from PySide6.QtGui import QStandardItem, QStandardItemModel
from PySide6.QtWidgets import QApplication, QMainWindow, QTreeView
"""PySide6 port of the widgets/tutorials/modelview/6_treeview example from Qt v6.x"""
#! [1]
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self._standard_model = QStandardItemModel(self)
self._tree_view = QTreeView(self)
self.setCentralWidget(self._tree_view)
prepared_row = self.prepare_row("first", "second", "third")
item = self._standard_model.invisibleRootItem()
# adding a row to the invisible root item produces a root element
item.appendRow(prepared_row)
second_row = self.prepare_row("111", "222", "333")
# adding a row to an item starts a subtree
prepared_row[0].appendRow(second_row)
self._tree_view.setModel(self._standard_model)
self._tree_view.expandAll()
def prepare_row(self, first, second, third):
return [QStandardItem(first), QStandardItem(second),
QStandardItem(third)]
#! [1]
if __name__ == '__main__':
app = QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec())
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