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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef Patternist_QObjectNodeModel_H
#define Patternist_QObjectNodeModel_H
#include <QSimpleXmlNodeModel>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QObject;
class PropertyToAtomicValue;
/**
* @short Delegates QtCore's QObject into Patternist's QAbstractXmlNodeModel.
* known as pre/post numbering.
*
* QObjectXmlModel sets the toggle on QXmlNodeModelIndex to @c true, if it
* represents a property of the QObject. That is, if the QXmlNodeModelIndex is
* an attribute.
*
* @author Frans Englich <frans.englich@nokia.com>
*/
class QObjectXmlModel : public QSimpleXmlNodeModel
{
public:
QObjectXmlModel(QObject *const object, const QXmlNamePool &np);
QXmlNodeModelIndex root() const;
//! [0]
virtual QXmlNodeModelIndex::DocumentOrder compareOrder(const QXmlNodeModelIndex &n1, const QXmlNodeModelIndex &n2) const;
virtual QXmlName name(const QXmlNodeModelIndex &n) const;
virtual QUrl documentUri(const QXmlNodeModelIndex &n) const;
virtual QXmlNodeModelIndex::NodeKind kind(const QXmlNodeModelIndex &n) const;
virtual QXmlNodeModelIndex root(const QXmlNodeModelIndex &n) const;
virtual QVariant typedValue(const QXmlNodeModelIndex &n) const;
virtual QVector<QXmlNodeModelIndex> attributes(const QXmlNodeModelIndex&) const;
virtual QXmlNodeModelIndex nextFromSimpleAxis(SimpleAxis, const QXmlNodeModelIndex&) const;
//! [0]
private:
/**
* The highest three bits are used to signify whether the node index
* is an artificial node.
*
* @short if QXmlNodeModelIndex::additionalData() has the
* QObjectPropery flag set, then the QXmlNodeModelIndex is an
* attribute of the QObject element, and the remaining bits form
* an offset to the QObject property that the QXmlNodeModelIndex
* refers to.
*
*/
//! [3]
enum QObjectNodeType
{
IsQObject = 0,
QObjectProperty = 1 << 26,
MetaObjects = 2 << 26,
MetaObject = 3 << 26,
MetaObjectClassName = 4 << 26,
MetaObjectSuperClass = 5 << 26,
QObjectClassName = 6 << 26
};
//! [3]
//! [1]
typedef QVector<const QMetaObject *> AllMetaObjects;
//! [1]
AllMetaObjects allMetaObjects() const;
static QObjectNodeType toNodeType(const QXmlNodeModelIndex &n);
static bool isTypeSupported(QVariant::Type type);
static inline QObject *asQObject(const QXmlNodeModelIndex &n);
static inline bool isProperty(const QXmlNodeModelIndex n);
static inline QMetaProperty toMetaProperty(const QXmlNodeModelIndex &n);
/**
* Returns the ancestors of @p n. Does therefore not include
* @p n.
*/
inline QXmlNodeModelIndex::List ancestors(const QXmlNodeModelIndex n) const;
QXmlNodeModelIndex qObjectSibling(const int pos,
const QXmlNodeModelIndex &n) const;
QXmlNodeModelIndex metaObjectSibling(const int pos,
const QXmlNodeModelIndex &n) const;
//! [2]
const QUrl m_baseURI;
QObject *const m_root;
//! [4]
const AllMetaObjects m_allMetaObjects;
//! [4]
//! [2]
};
QT_END_NAMESPACE
QT_END_HEADER
#endif
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