/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtXmlPatterns module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists purely as an+
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// implementation detail.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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+
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#ifndef Patternist_AtomicMathematicians_H+
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#define Patternist_AtomicMathematicians_H+
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+
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#include "qatomicmathematician_p.h"+
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#include "qsourcelocationreflection_p.h"+
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+
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/**+
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 * @file+
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 * @short Contains classes performing arithemetic operations between atomic values, such as+
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 * subtracting two dates.+
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 */+
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+
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QT_BEGIN_HEADER+
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+
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QT_BEGIN_NAMESPACE+
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+
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namespace QPatternist+
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{+
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    /**+
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     *+
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     * @ingroup Patternist_xdm+
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     * @author Frans Englich <frans.englich@nokia.com>+
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     */+
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    class DecimalMathematician : public AtomicMathematician+
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                               , public DelegatingSourceLocationReflection+
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    {+
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    public:+
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        inline DecimalMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)+
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        {+
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        }+
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+
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        virtual Item calculate(const Item &o1,+
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                               const Operator op,+
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                               const Item &o2,+
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                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;+
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    };+
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+
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    /**+
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     * @short Performs arithmetics between Integer values.+
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     *+
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     * @ingroup Patternist_xdm+
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     * @author Frans Englich <frans.englich@nokia.com>+
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     */+
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    class IntegerMathematician : public AtomicMathematician+
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                               , public DelegatingSourceLocationReflection+
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    {+
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    public:+
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        inline IntegerMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)+
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        {+
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        }+
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+
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        virtual Item calculate(const Item &o1,+
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                               const Operator op,+
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                               const Item &o2,+
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                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;+
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    };+
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+
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    /**+
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     * @short Performs division or multiplication between either DayTimeDuration or YearMonthDuration+
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     * and Double values.+
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     *+
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     * @ingroup Patternist_xdm+
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     * @author Frans Englich <frans.englich@nokia.com>+
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     */+
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    class DurationNumericMathematician : public AtomicMathematician+
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                                       , public DelegatingSourceLocationReflection+
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    {+
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    public:+
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        inline DurationNumericMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)+
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        {+
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        }+
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+
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        virtual Item calculate(const Item &o1,+
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                               const Operator op,+
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                               const Item &o2,+
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                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;+
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    };+
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+
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    /**+
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     * @short Performs division between DayTimeDuration and DayTimeDuration, or+
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     * YearMonthDuration and YearMonthDuration.+
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     *+
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     * @ingroup Patternist_xdm+
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     * @author Frans Englich <frans.englich@nokia.com>+
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     */+
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    class DurationDurationDivisor : public AtomicMathematician+
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    {+
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    public:+
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        virtual Item calculate(const Item &o1,+
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                               const Operator op,+
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                               const Item &o2,+
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                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;+
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    };+
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+
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    /**+
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     * @short Performs arithmetics between DayTimeDuration and DayTimeDuration, or+
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     * YearMonthDuration and YearMonthDuration.+
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     *+
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     * @ingroup Patternist_xdm+
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     * @author Frans Englich <frans.englich@nokia.com>+
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     */+
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    class DurationDurationMathematician : public AtomicMathematician+
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    {+
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    public:+
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        virtual Item calculate(const Item &o1,+
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                               const Operator op,+
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                               const Item &o2,+
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                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;+
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    };+
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+
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    /**+
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     * @short Delegates an AtomicMathematician and switches its operands.+
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     *+
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     * Switches the operands of the call to a call to the calculate()+
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     * on an AtomicMathematician such that the left operand becomes the right, and+
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     * vice versa.+
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     *+
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     * Its constructor takes an AtomicMathematician instance which this OperandSwitcherMathematician+
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     * should act as as a middle-man for, having the role of switching the two operands. Thus,+
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     * OperandSwitcherMathematician can be described as a proxy or delegator class.+
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     *+
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     * This class is used for implementing operator combinations such as+
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     * <tt>numeric * xs:yearMonthDuration</tt> and+
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     * <tt>xs:yearMonthDuration * numeric</tt>.+
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     *+
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     * @ingroup Patternist_xdm+
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     * @author Frans Englich <frans.englich@nokia.com>+
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     */+
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    class OperandSwitcherMathematician : public AtomicMathematician+
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    {+
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    public:+
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        /**+
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         * Creates an OperandSwitcherMathematician.+
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         *+
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         * @param mathematician the AtomicMathematician this OperandSwitcherMathematician+
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         * should switch the operands for. Must be a non @c null, valid pointer.+
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         */+
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        OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician);+
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+
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        /**+
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         * Switch @p o1 and @p o2, and returns the value from the AtomicMathematician+
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         * this OperandSwitcherMathematician represents.+
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         */+
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        virtual Item calculate(const Item &o1,+
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                               const Operator op,+
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                               const Item &o2,+
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                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;+
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    private:+
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        const AtomicMathematician::Ptr m_mather;+
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    };+
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+
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    /**+
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     * @short Performs arithmetics between an AbstractDateTime value and+
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     * an AbstractDuration value.+
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     *+
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     * @ingroup Patternist_xdm+
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     * @author Frans Englich <frans.englich@nokia.com>+
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     */+
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    class DateTimeDurationMathematician : public AtomicMathematician+
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                                        , public DelegatingSourceLocationReflection+
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    {+
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    public:+
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+
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        inline DateTimeDurationMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)+
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        {+
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        }+
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+
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        /**+
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         * @p o1 is an AbstractDateTime and @p o2 is an AbstractDuration.+
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         *+
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         */+
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        virtual Item calculate(const Item &o1,+
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                               const Operator op,+
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                               const Item &o2,+
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                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;+
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    };+
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+
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    /**+
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     * @short Performs arithmetics between two AbstractDateTime values.+
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     *+
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     * @ingroup Patternist_xdm+
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     * @author Frans Englich <frans.englich@nokia.com>+
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     */+
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    class AbstractDateTimeMathematician : public AtomicMathematician+
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    {+
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    public:+
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        virtual Item calculate(const Item &o1,+
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                               const Operator op,+
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                               const Item &o2,+
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                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;+
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    };+
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}+
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+
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QT_END_NAMESPACE+
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+
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QT_END_HEADER+
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+
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#endif+
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