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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AtomicMathematicians_H
+#define Patternist_AtomicMathematicians_H
+
+#include "qatomicmathematician_p.h"
+#include "qsourcelocationreflection_p.h"
+
+/**
+ * @file
+ * @short Contains classes performing arithemetic operations between atomic values, such as
+ * subtracting two dates.
+ */
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+ /**
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <fenglich@trolltech.com>
+ */
+ class DecimalMathematician : public AtomicMathematician
+ , public DelegatingSourceLocationReflection
+ {
+ public:
+ inline DecimalMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
+ {
+ }
+
+ virtual Item calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Performs arithmetics between Integer values.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <fenglich@trolltech.com>
+ */
+ class IntegerMathematician : public AtomicMathematician
+ , public DelegatingSourceLocationReflection
+ {
+ public:
+ inline IntegerMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
+ {
+ }
+
+ virtual Item calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Performs division or multiplication between either DayTimeDuration or YearMonthDuration
+ * and Double values.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <fenglich@trolltech.com>
+ */
+ class DurationNumericMathematician : public AtomicMathematician
+ , public DelegatingSourceLocationReflection
+ {
+ public:
+ inline DurationNumericMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
+ {
+ }
+
+ virtual Item calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Performs division between DayTimeDuration and DayTimeDuration, or
+ * YearMonthDuration and YearMonthDuration.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <fenglich@trolltech.com>
+ */
+ class DurationDurationDivisor : public AtomicMathematician
+ {
+ public:
+ virtual Item calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Performs arithmetics between DayTimeDuration and DayTimeDuration, or
+ * YearMonthDuration and YearMonthDuration.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <fenglich@trolltech.com>
+ */
+ class DurationDurationMathematician : public AtomicMathematician
+ {
+ public:
+ virtual Item calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Delegates an AtomicMathematician and switches its operands.
+ *
+ * Switches the operands of the call to a call to the calculate()
+ * on an AtomicMathematician such that the left operand becomes the right, and
+ * vice versa.
+ *
+ * Its constructor takes an AtomicMathematician instance which this OperandSwitcherMathematician
+ * should act as as a middle-man for, having the role of switching the two operands. Thus,
+ * OperandSwitcherMathematician can be described as a proxy or delegator class.
+ *
+ * This class is used for implementing operator combinations such as
+ * <tt>numeric * xs:yearMonthDuration</tt> and
+ * <tt>xs:yearMonthDuration * numeric</tt>.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <fenglich@trolltech.com>
+ */
+ class OperandSwitcherMathematician : public AtomicMathematician
+ {
+ public:
+ /**
+ * Creates an OperandSwitcherMathematician.
+ *
+ * @param mathematician the AtomicMathematician this OperandSwitcherMathematician
+ * should switch the operands for. Must be a non @c null, valid pointer.
+ */
+ OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician);
+
+ /**
+ * Switch @p o1 and @p o2, and returns the value from the AtomicMathematician
+ * this OperandSwitcherMathematician represents.
+ */
+ virtual Item calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ private:
+ const AtomicMathematician::Ptr m_mather;
+ };
+
+ /**
+ * @short Performs arithmetics between an AbstractDateTime value and
+ * an AbstractDuration value.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <fenglich@trolltech.com>
+ */
+ class DateTimeDurationMathematician : public AtomicMathematician
+ , public DelegatingSourceLocationReflection
+ {
+ public:
+
+ inline DateTimeDurationMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
+ {
+ }
+
+ /**
+ * @p o1 is an AbstractDateTime and @p o2 is an AbstractDuration.
+ *
+ */
+ virtual Item calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Performs arithmetics between two AbstractDateTime values.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <fenglich@trolltech.com>
+ */
+ class AbstractDateTimeMathematician : public AtomicMathematician
+ {
+ public:
+ virtual Item calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif