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diff --git a/sources/pyside2/doc/codesnippets/examples/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp b/sources/pyside2/doc/codesnippets/examples/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp
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+############################################################################
+##
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the examples of PySide2.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## BSD License Usage
+## Alternatively, 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."
+##
+## $QT_END_LICENSE$
+##
+############################################################################
+
+//! [0]
+def __init__(self, parent):
+ QSortFilterProxyModel.__init__(self, parent)
+//! [0]
+
+//! [1]
+def setFilterMinimumDate(self, date):
+ self.minDate = date
+ self.invalidateFilter()
+
+//! [1]
+
+//! [2]
+def setFilterMaximumDate(self, date):
+ self.maxDate = date
+ self.invalidateFilter()
+
+//! [2]
+
+//! [3]
+def filterAcceptsRow(self, sourceRow, sourceParent):
+ index0 = sourceModel().index(sourceRow, 0, sourceParent)
+ index1 = sourceModel().index(sourceRow, 1, sourceParent)
+ index2 = sourceModel().index(sourceRow, 2, sourceParent)
+
+ regex = filterRegExp()
+ return (regex.indexIn(sourceModel().data(index0)) != -1
+ or regex.indexIn(sourceModel().data(index1)) != -1
+ and dateInRange(sourceModel().data(index2))
+//! [3]
+
+//! [4] //! [5]
+def lessThan(self, left, right):
+ leftData = sourceModel().data(left)
+ rightData = sourceModel().data(right)
+//! [4]
+
+//! [6]
+ if isinstance(leftData, QDateTime):
+ return leftData < rightData
+ else:
+ emailPattern = QRegExp("([\\w\\.]*@[\\w\\.]*)")
+
+ if left.column() == 1 && emailPattern.indexIn(leftData) != -1:
+ leftData = emailPattern.cap(1)
+
+ if right.column() == 1 && emailPattern.indexIn(rightData) != -1:
+ rightData = emailPattern.cap(1)
+
+ return leftString < rightString
+
+//! [5] //! [6]
+
+//! [7]
+def dateInRange(self, date):
+ return (!minDate.isValid() || date > minDate)
+ && (!maxDate.isValid() || date < maxDate)
+
+//! [7]