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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#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