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path: root/src/xmlpatterns/functions/qnumericfns.cpp
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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qcommonvalues_p.h"
#include "qgenericsequencetype_p.h"
#include "qschemanumeric_p.h"

#include "qnumericfns_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

Item FloorFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    return toItem(num.as<Numeric>()->floor());
}

Item AbsFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    return toItem(num.as<Numeric>()->abs());
}

Item RoundFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    return toItem(num.as<Numeric>()->round());
}

Item CeilingFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    return toItem(num.as<Numeric>()->ceiling());
}

Item RoundHalfToEvenFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    xsInteger scale = 0;

    if(m_operands.count() == 2)
        scale = m_operands.at(1)->evaluateSingleton(context).as<Numeric>()->toInteger();

    return toItem(num.as<Numeric>()->roundHalfToEven(scale));
}

QT_END_NAMESPACE