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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia Plc 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 "sortfiltermodel.h"
#include <QtCore/QDateTime>
#include <QtCore/QDebug>
SortFilterModel::SortFilterModel(QObject *parent)
: QSortFilterProxyModel(parent),
m_maximumCount(0),
m_hide(false)
{
connect(this, SIGNAL(sourceModelChanged()), SIGNAL(modelChanged()));
connect(this, SIGNAL(sortRoleChanged()), SLOT(manualSort()));
setDynamicSortFilter(false);
}
void SortFilterModel::setModel(QObject *model)
{
QAbstractItemModel* tmpModel = qobject_cast<QAbstractItemModel*>(model);
if (tmpModel == NULL)
return;
setSourceModel(tmpModel);
setSortRole(m_sortRole);
setFilterRole(m_filterRole);
}
QString SortFilterModel::sortRole() const
{
return m_sortRole;
}
void SortFilterModel::setSortRole(const QString &role)
{
m_sortRole = role;
QSortFilterProxyModel::setSortRole(roleNames().key(role.toLatin1()));
Q_EMIT sortRoleChanged();
}
QString SortFilterModel::filterRole() const
{
return m_filterRole;
}
void SortFilterModel::setFilterRole(const QString &role)
{
m_filterRole = role;
QSortFilterProxyModel::setFilterRole(roleNames().key(role.toLatin1()));
Q_EMIT filterRoleChanged();
}
int SortFilterModel::maximumCount() const
{
return m_maximumCount;
}
void SortFilterModel::setMaximumCount(const int &newCount)
{
if (newCount != m_maximumCount) {
m_maximumCount = newCount;
emit maximumCountChanged();
}
}
void SortFilterModel::setHide(const bool newHide)
{
if (newHide != m_hide) {
m_hide = newHide;
emit hideChanged();
}
}
QVariant SortFilterModel::get(int row, const QString &role)
{
return data(index(row, 0), roleNames().key(role.toLatin1()));
}
void SortFilterModel::set(int row, const QVariant &data, const QString &role)
{
setData(index(row, 0), data, roleNames().key(role.toLatin1()));
}
QVariant SortFilterModel::indexOf(const QString &role, QVariant value)
{
QModelIndexList result = match(index(0, 0), roleNames().key(role.toLatin1()), value);
return result.empty() ? 0 : result.at(0).row();
}
int SortFilterModel::rowCount(const QModelIndex &parent) const
{
int tempRowCount = QSortFilterProxyModel::rowCount(parent);
if (maximumCount() > 0)
tempRowCount = qMin(maximumCount(), tempRowCount);
return tempRowCount;
}
void SortFilterModel::manualSort()
{
sort(0, sortOrder());
}
void SortFilterModel::filter()
{
QSortFilterProxyModel::invalidate();
manualSort();
}
bool SortFilterModel::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const
{
if (filterRole() == "fromNow" && sourceModel()->roleNames().values().contains("start")) {
QModelIndex index = sourceModel()->index(source_row, 0, source_parent);
QDateTime date = sourceModel()->data(index, sourceModel()->roleNames().key("start")).toDateTime();
QDateTime currentDateTime = QDateTime::currentDateTime();
int localTimeZoneOffset = currentDateTime.offsetFromUtc();
currentDateTime.setMSecsSinceEpoch(currentDateTime.currentMSecsSinceEpoch() + localTimeZoneOffset*1000);
return date >= currentDateTime;
} else {
if (m_hide && sourceModel()->roleNames().values().contains("hideInSchedule")) {
QModelIndex index = sourceModel()->index(source_row, 0, source_parent);
bool willBeHidden = sourceModel()->data(index, sourceModel()->roleNames().key("hideInSchedule")).toBool();
if (willBeHidden)
return false;
}
return QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent);
}
}
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