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Diffstat (limited to 'examples/widgets/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp')
-rw-r--r-- | examples/widgets/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/examples/widgets/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp b/examples/widgets/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp new file mode 100644 index 0000000000..3100efa4ac --- /dev/null +++ b/examples/widgets/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp @@ -0,0 +1,115 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the 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 Nokia Corporation and its Subsidiary(-ies) 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtWidgets> + +#include "mysortfilterproxymodel.h" + +//! [0] +MySortFilterProxyModel::MySortFilterProxyModel(QObject *parent) + : QSortFilterProxyModel(parent) +{ +} +//! [0] + +//! [1] +void MySortFilterProxyModel::setFilterMinimumDate(const QDate &date) +{ + minDate = date; + invalidateFilter(); +} +//! [1] + +//! [2] +void MySortFilterProxyModel::setFilterMaximumDate(const QDate &date) +{ + maxDate = date; + invalidateFilter(); +} +//! [2] + +//! [3] +bool MySortFilterProxyModel::filterAcceptsRow(int sourceRow, + const QModelIndex &sourceParent) const +{ + QModelIndex index0 = sourceModel()->index(sourceRow, 0, sourceParent); + QModelIndex index1 = sourceModel()->index(sourceRow, 1, sourceParent); + QModelIndex index2 = sourceModel()->index(sourceRow, 2, sourceParent); + + return (sourceModel()->data(index0).toString().contains(filterRegExp()) + || sourceModel()->data(index1).toString().contains(filterRegExp())) + && dateInRange(sourceModel()->data(index2).toDate()); +} +//! [3] + +//! [4] //! [5] +bool MySortFilterProxyModel::lessThan(const QModelIndex &left, + const QModelIndex &right) const +{ + QVariant leftData = sourceModel()->data(left); + QVariant rightData = sourceModel()->data(right); +//! [4] + +//! [6] + if (leftData.type() == QVariant::DateTime) { + return leftData.toDateTime() < rightData.toDateTime(); + } else { + QRegExp *emailPattern = new QRegExp("([\\w\\.]*@[\\w\\.]*)"); + + QString leftString = leftData.toString(); + if(left.column() == 1 && emailPattern->indexIn(leftString) != -1) + leftString = emailPattern->cap(1); + + QString rightString = rightData.toString(); + if(right.column() == 1 && emailPattern->indexIn(rightString) != -1) + rightString = emailPattern->cap(1); + + return QString::localeAwareCompare(leftString, rightString) < 0; + } +} +//! [5] //! [6] + +//! [7] +bool MySortFilterProxyModel::dateInRange(const QDate &date) const +{ + return (!minDate.isValid() || date > minDate) + && (!maxDate.isValid() || date < maxDate); +} +//! [7] |