mysortfilterproxymodel.cpp Example File
itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp
/****************************************************************************
**
** Copyright (C) 2006-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** Licensees holding valid Qt Preview licenses may use this file in
** accordance with the Qt Preview License Agreement provided with the
** Software.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include <QtGui>
#include "mysortfilterproxymodel.h"
MySortFilterProxyModel::MySortFilterProxyModel(QObject *parent)
: QSortFilterProxyModel(parent)
{
}
void MySortFilterProxyModel::setFilterMinimumDate(const QDate &date)
{
minDate = date;
clear();
}
void MySortFilterProxyModel::setFilterMaximumDate(const QDate &date)
{
maxDate = date;
clear();
}
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());
}
bool MySortFilterProxyModel::lessThan(const QModelIndex &left,
const QModelIndex &right) const
{
QVariant leftData = sourceModel()->data(left);
QVariant rightData = sourceModel()->data(right);
if (leftData.type() == QVariant::DateTime) {
return leftData.toDateTime() < rightData.toDateTime();
} else {
return QString::localeAwareCompare(leftData.toString(),
rightData.toString()) < 0;
}
}
bool MySortFilterProxyModel::dateInRange(const QDate &date) const
{
return (!minDate.isValid() || date > minDate)
&& (!maxDate.isValid() || date < maxDate);
}