Long live Qt for S60!

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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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QABSTRACTXMLNODEMODEL_H
+#define QABSTRACTXMLNODEMODEL_H
+
+#include <QtXmlPatterns/QXmlName>
+#include <QtCore/QSharedData>
+
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(XmlPatterns)
+
+/* This file contains the classes QXmlNodeModelIndex, QAbstractXmlNodeModel,
+ * QXmlItem and QPatternist::NodeIndexStorage. */
+
+class QAbstractXmlNodeModel;
+class QAbstractXmlNodeModelPrivate;
+class QAbstractXmlReceiver;
+class QUrl;
+class QXmlName;
+class QXmlNodeModelIndex;
+template<typename T> class QAbstractXmlForwardIterator;
+template<typename T> class QVector;
+
+/* The members in the namespace QPatternist are internal, not part of the public API, and
+ * unsupported. Using them leads to undefined behavior. */
+namespace QPatternist
+{
+    class DynamicContext;
+    class Item;
+    class ItemType;
+    template<typename TResult, typename TSource, typename TMapper, typename Context> class ItemMappingIterator;
+    template<typename TResult, typename TSource, typename TMapper> class SequenceMappingIterator;
+    typedef QExplicitlySharedDataPointer<ItemType> ItemTypePtr;
+    typedef QExplicitlySharedDataPointer<QAbstractXmlForwardIterator<Item> > ItemIteratorPtr;
+    typedef QVector<QXmlName> QXmlNameVector;
+
+    class NodeIndexStorage
+    {
+    public:
+        typedef qint64 Data;
+
+        /*!
+          \note Changing merely the order of these two members, ptr and data,
+                is a binary incompatible change on Mac Power PC.
+         */
+        union
+        {
+            void *ptr; // Do not use ptr directy, use pointer() instead.
+            Data data;
+        };
+        void *pointer() const
+        {
+            /* Constructing to qptrdiff means we avoid the warning "cast to pointer
+             * from integer of different size."
+             */
+            return (void *)qptrdiff(data);
+        }
+
+        Data additionalData;
+        const QAbstractXmlNodeModel *model;
+
+        /* Implementation is in qabstractxmlnodemodel.cpp. */
+        inline bool operator!=(const NodeIndexStorage &other) const;
+    };
+}
+
+class Q_XMLPATTERNS_EXPORT QXmlNodeModelIndex
+{
+    enum Constants
+    {
+        ForwardAxis         = 8192,
+        ReverseAxis         = 16384
+    };
+
+public:
+    inline QXmlNodeModelIndex()
+    {
+        reset();
+    }
+
+    inline QXmlNodeModelIndex(const QXmlNodeModelIndex &other) : m_storage(other.m_storage)
+    {
+    }
+
+    bool operator==(const QXmlNodeModelIndex &other) const;
+    bool operator!=(const QXmlNodeModelIndex &other) const;
+
+    typedef QAbstractXmlForwardIterator<QXmlNodeModelIndex> Iterator;
+    typedef QList<QXmlNodeModelIndex> List;
+
+    enum NodeKind
+    {
+        Attribute               = 1,
+        Comment                 = 2,
+        Document                = 4,
+        Element                 = 8,
+        Namespace               = 16,
+        ProcessingInstruction   = 32,
+        Text                    = 64
+    };
+
+    enum DocumentOrder
+    {
+        Precedes = -1,
+        Is       = 0,
+        Follows  = 1
+    };
+
+    enum Axis
+    {
+        AxisChild               = 1 | ForwardAxis,
+        AxisDescendant          = 2 | ForwardAxis,
+        AxisAttribute           = 4 | ForwardAxis,
+        AxisSelf                = 8 | ForwardAxis,
+        AxisDescendantOrSelf    = 16 | ForwardAxis,
+        AxisFollowingSibling    = 32 | ForwardAxis,
+        AxisNamespace           = 64 | ForwardAxis,
+        AxisFollowing           = 128 | ReverseAxis,
+        AxisParent              = 256 | ReverseAxis,
+        AxisAncestor            = 512 | ReverseAxis,
+        AxisPrecedingSibling    = 1024 | ReverseAxis,
+        AxisPreceding           = 2048 | ReverseAxis,
+        AxisAncestorOrSelf      = 4096 | ReverseAxis,
+        /* Note that we cannot clash with the values of ForwardAxis and
+         * ReverseAxis. */
+        AxisChildOrTop          = 32768 | ForwardAxis,
+        AxisAttributeOrTop      = 65536 | ForwardAxis
+    };
+
+    inline qint64 data() const
+    {
+        return m_storage.data;
+    }
+
+    inline void *internalPointer() const
+    {
+        return m_storage.pointer();
+    }
+
+    inline const QAbstractXmlNodeModel *model() const
+    {
+        return m_storage.model;
+    }
+
+    inline qint64 additionalData() const
+    {
+        return m_storage.additionalData;
+    }
+
+    inline bool isNull() const
+    {
+        return !m_storage.model;
+    }
+
+    /* The members below are internal, not part of the public API, and
+     * unsupported. Using them leads to undefined behavior. */
+
+    inline QXmlName name() const;
+    inline QXmlNodeModelIndex root() const;
+    inline QExplicitlySharedDataPointer<QAbstractXmlForwardIterator<QXmlNodeModelIndex> > iterate(const Axis axis) const;
+    inline QExplicitlySharedDataPointer<QAbstractXmlForwardIterator<QPatternist::Item> > sequencedTypedValue() const;
+    inline QUrl documentUri() const;
+    inline QUrl baseUri() const;
+    inline NodeKind kind() const;
+    inline bool isDeepEqual(const QXmlNodeModelIndex &other) const;
+    inline DocumentOrder compareOrder(const QXmlNodeModelIndex &other) const;
+    inline void sendNamespaces(QAbstractXmlReceiver *const receiver) const;
+    inline QVector<QXmlName> namespaceBindings() const;
+    inline QXmlName::NamespaceCode namespaceForPrefix(const QXmlName::PrefixCode prefix) const;
+    inline QString stringValue() const;
+    inline QPatternist::ItemTypePtr type() const;
+    inline bool is(const QXmlNodeModelIndex &other) const;
+
+    inline void reset()
+    {
+        m_storage.data = 0;
+        m_storage.additionalData = 0;
+        m_storage.model = 0;
+    }
+
+private:
+    static inline QXmlNodeModelIndex create(const qint64 d,
+                                            const QAbstractXmlNodeModel *const nm)
+    {
+        QXmlNodeModelIndex n;
+        n.m_storage.data = d;
+        n.m_storage.model = nm;
+        n.m_storage.additionalData = 0;
+        return n;
+    }
+
+    static inline QXmlNodeModelIndex create(const qint64 data,
+                                            const QAbstractXmlNodeModel *const nm,
+                                            const qint64 addData)
+    {
+        QXmlNodeModelIndex n;
+        n.m_storage.data = data;
+        n.m_storage.model = nm;
+        n.m_storage.additionalData = addData;
+        return n;
+    }
+
+    inline QXmlNodeModelIndex(const QPatternist::NodeIndexStorage &storage) : m_storage(storage)
+    {
+    }
+
+    friend class QAbstractXmlNodeModel;
+    friend class QPatternist::Item;
+    friend class QXmlItem;
+    inline operator int() const; // Disable
+
+    QPatternist::NodeIndexStorage m_storage;
+};
+
+Q_XMLPATTERNS_EXPORT uint qHash(const QXmlNodeModelIndex &index);
+
+inline bool qIsForwardIteratorEnd(const QXmlNodeModelIndex &item)
+{
+    return item.isNull();
+}
+
+class Q_XMLPATTERNS_EXPORT QAbstractXmlNodeModel : public QSharedData
+{
+public:
+    enum SimpleAxis
+    {
+        Parent,
+        FirstChild,
+        PreviousSibling,
+        NextSibling
+    };
+
+    typedef QExplicitlySharedDataPointer<QAbstractXmlNodeModel> Ptr;
+    typedef QList<Ptr> List;
+
+    QAbstractXmlNodeModel();
+    virtual ~QAbstractXmlNodeModel();
+
+    virtual QUrl baseUri(const QXmlNodeModelIndex &ni) const = 0;
+    virtual QUrl documentUri(const QXmlNodeModelIndex &ni) const = 0;
+    virtual QXmlNodeModelIndex::NodeKind kind(const QXmlNodeModelIndex &ni) const = 0;
+    virtual QXmlNodeModelIndex::DocumentOrder compareOrder(const QXmlNodeModelIndex &ni1,
+                                                           const QXmlNodeModelIndex &ni2) const = 0;
+    virtual QXmlNodeModelIndex root(const QXmlNodeModelIndex &n) const = 0;
+    virtual QXmlName name(const QXmlNodeModelIndex &ni) const = 0;
+    virtual QString stringValue(const QXmlNodeModelIndex &n) const = 0;
+    virtual QVariant typedValue(const QXmlNodeModelIndex &n) const = 0;
+
+    /* The members below are internal, not part of the public API, and
+     * unsupported. Using them leads to undefined behavior. */
+    virtual QExplicitlySharedDataPointer<QAbstractXmlForwardIterator<QXmlNodeModelIndex> > iterate(const QXmlNodeModelIndex &ni, QXmlNodeModelIndex::Axis axis) const;
+    virtual QPatternist::ItemIteratorPtr sequencedTypedValue(const QXmlNodeModelIndex &ni) const;
+    virtual QPatternist::ItemTypePtr type(const QXmlNodeModelIndex &ni) const;
+    virtual QXmlName::NamespaceCode namespaceForPrefix(const QXmlNodeModelIndex &ni,
+                                                       const QXmlName::PrefixCode prefix) const;
+    virtual bool isDeepEqual(const QXmlNodeModelIndex &ni1,
+                             const QXmlNodeModelIndex &ni2) const;
+    virtual void sendNamespaces(const QXmlNodeModelIndex &n,
+                                QAbstractXmlReceiver *const receiver) const;
+    virtual QVector<QXmlName> namespaceBindings(const QXmlNodeModelIndex &n) const = 0;
+
+
+    virtual QXmlNodeModelIndex elementById(const QXmlName &NCName) const = 0;
+    virtual QVector<QXmlNodeModelIndex> nodesByIdref(const QXmlName &NCName) const = 0;
+
+    enum NodeCopySetting
+    {
+        InheritNamespaces   = 0x1,
+        PreserveNamespaces  = 0x2
+    };
+
+    typedef QFlags<NodeCopySetting> NodeCopySettings;
+    virtual void copyNodeTo(const QXmlNodeModelIndex &node,
+                            QAbstractXmlReceiver *const receiver,
+                            const NodeCopySettings &) const;
+
+protected:
+
+    virtual QXmlNodeModelIndex nextFromSimpleAxis(SimpleAxis axis, const QXmlNodeModelIndex &origin) const = 0;
+    virtual QVector<QXmlNodeModelIndex> attributes(const QXmlNodeModelIndex &element) const = 0;
+
+    QAbstractXmlNodeModel(QAbstractXmlNodeModelPrivate *d);
+
+    inline QXmlNodeModelIndex createIndex(qint64 data) const
+    {
+        return QXmlNodeModelIndex::create(data, this);
+    }
+
+    inline QXmlNodeModelIndex createIndex(void * pointer,
+                                          qint64 additionalData = 0) const
+    {
+        return QXmlNodeModelIndex::create(qptrdiff(pointer), this, additionalData);
+    }
+
+    inline QXmlNodeModelIndex createIndex(qint64 data,
+                                          qint64 additionalData) const
+    {
+        return QXmlNodeModelIndex::create(data, this, additionalData);
+    }
+
+    QAbstractXmlNodeModelPrivate *d_ptr;
+private:
+    friend class QPatternist::ItemMappingIterator<QXmlNodeModelIndex, QXmlNodeModelIndex, const QAbstractXmlNodeModel *, QExplicitlySharedDataPointer<QPatternist::DynamicContext> >;
+    friend class QPatternist::SequenceMappingIterator<QXmlNodeModelIndex, QXmlNodeModelIndex, const QAbstractXmlNodeModel *>;
+
+    inline QExplicitlySharedDataPointer<QAbstractXmlForwardIterator<QXmlNodeModelIndex> > mapToSequence(const QXmlNodeModelIndex &ni,
+                                                                           const QExplicitlySharedDataPointer<QPatternist::DynamicContext> &) const;
+
+    static inline bool isIgnorableInDeepEqual(const QXmlNodeModelIndex &n);
+    Q_DISABLE_COPY(QAbstractXmlNodeModel)
+};
+
+Q_DECLARE_TYPEINFO(QXmlNodeModelIndex, Q_MOVABLE_TYPE);
+
+template<typename T> class QAbstractXmlForwardIterator;
+class QVariant;
+class QXmlItemPrivate;
+
+namespace QPatternist
+{
+    class AtomicValue;
+    class VariableLoader;
+    class IteratorBridge;
+    class ToQXmlItemMapper;
+    class ToItemMapper;
+}
+
+class Q_XMLPATTERNS_EXPORT QXmlItem
+{
+public:
+    typedef QAbstractXmlForwardIterator<QXmlItem> Iterator;
+
+    QXmlItem();
+    QXmlItem(const QXmlItem &other);
+    QXmlItem(const QXmlNodeModelIndex &node);
+    QXmlItem(const QVariant &atomicValue);
+    ~QXmlItem();
+    QXmlItem &operator=(const QXmlItem &other);
+
+    bool isNull() const;
+    bool isNode() const;
+    bool isAtomicValue() const;
+
+    QVariant toAtomicValue() const;
+    QXmlNodeModelIndex toNodeModelIndex() const;
+
+private:
+    friend class QPatternist::IteratorBridge;
+    friend class QPatternist::VariableLoader;
+    friend class QPatternist::ToQXmlItemMapper;
+    friend class QPatternist::ToItemMapper;
+    friend class QPatternist::Item;
+
+    inline bool internalIsAtomicValue() const;
+
+    inline QXmlItem(const QPatternist::Item &i);
+
+    union
+    {
+        QPatternist::NodeIndexStorage   m_node;
+
+        /* These two sits at the position of NodeIndexStorage::data.
+         * NodeIndexStorage::{additionalData,model} are free. */
+        const QPatternist::AtomicValue *m_atomicValue;
+        QXmlItemPrivate *               m_ptr; /* Not currently used. */
+    };
+};
+
+inline bool qIsForwardIteratorEnd(const QXmlItem &item)
+{
+    return item.isNull();
+}
+
+Q_DECLARE_TYPEINFO(QXmlItem, Q_MOVABLE_TYPE);
+
+QT_END_NAMESPACE
+
+Q_DECLARE_METATYPE(QXmlItem) /* This macro must appear after QT_END_NAMESPACE. */
+
+QT_END_HEADER
+
+#endif