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Diffstat (limited to 'src/xmlpatterns/api/qabstractxmlnodemodel.h')
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1 files changed, 423 insertions, 0 deletions
diff --git a/src/xmlpatterns/api/qabstractxmlnodemodel.h b/src/xmlpatterns/api/qabstractxmlnodemodel.h new file mode 100644 index 0000000..6c9574c --- /dev/null +++ b/src/xmlpatterns/api/qabstractxmlnodemodel.h @@ -0,0 +1,423 @@ +/**************************************************************************** +** +** 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 |