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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QDECLARATIVEPROPERTYCACHE_P_H
#define QDECLARATIVEPROPERTYCACHE_P_H
//
// 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.
//
#include "private/qdeclarativerefcount_p.h"
#include "private/qdeclarativecleanup_p.h"
#include "private/qdeclarativenotifier_p.h"
#include <QtCore/qvector.h>
#include <QtScript/private/qscriptdeclarativeclass_p.h>
QT_BEGIN_NAMESPACE
class QDeclarativeEngine;
class QMetaProperty;
class Q_AUTOTEST_EXPORT QDeclarativePropertyCache : public QDeclarativeRefCount, public QDeclarativeCleanup
{
public:
QDeclarativePropertyCache(QDeclarativeEngine *);
QDeclarativePropertyCache(QDeclarativeEngine *, const QMetaObject *);
virtual ~QDeclarativePropertyCache();
struct Data {
inline Data();
inline bool operator==(const Data &);
enum Flag {
NoFlags = 0x00000000,
// Can apply to all properties, except IsFunction
IsConstant = 0x00000001,
IsWritable = 0x00000002,
IsResettable = 0x00000004,
IsAlias = 0x00000008,
// These are mutualy exclusive
IsFunction = 0x00000010,
IsQObjectDerived = 0x00000020,
IsEnumType = 0x00000040,
IsQList = 0x00000080,
IsQmlBinding = 0x00000100,
IsQScriptValue = 0x00000200,
// Apply only to IsFunctions
IsVMEFunction = 0x00000400,
HasArguments = 0x00000800,
IsSignal = 0x00001000,
IsVMESignal = 0x00002000
};
Q_DECLARE_FLAGS(Flags, Flag)
bool isValid() const { return coreIndex != -1; }
Flags flags;
int propType;
int coreIndex;
union {
int notifyIndex; // When !IsFunction
int relatedIndex; // When IsFunction
};
uint overrideIndexIsProperty : 1;
signed int overrideIndex : 31;
int revision;
int metaObjectOffset;
static Flags flagsForProperty(const QMetaProperty &, QDeclarativeEngine *engine = 0);
void load(const QMetaProperty &, QDeclarativeEngine *engine = 0);
void load(const QMetaMethod &);
QString name(QObject *);
QString name(const QMetaObject *);
};
struct ValueTypeData {
inline ValueTypeData();
inline bool operator==(const ValueTypeData &);
Data::Flags flags; // flags of the access property on the value type proxy object
int valueTypeCoreIdx; // The prop index of the access property on the value type proxy object
int valueTypePropType; // The QVariant::Type of access property on the value type proxy object
};
void update(QDeclarativeEngine *, const QMetaObject *);
QDeclarativePropertyCache *copy() const;
void append(QDeclarativeEngine *, const QMetaObject *, Data::Flag propertyFlags = Data::NoFlags,
Data::Flag methodFlags = Data::NoFlags, Data::Flag signalFlags = Data::NoFlags);
void append(QDeclarativeEngine *, const QMetaObject *, int revision, Data::Flag propertyFlags = Data::NoFlags,
Data::Flag methodFlags = Data::NoFlags, Data::Flag signalFlags = Data::NoFlags);
static Data create(const QMetaObject *, const QString &);
inline Data *property(const QScriptDeclarativeClass::Identifier &id) const;
Data *property(const QString &) const;
Data *property(int) const;
Data *method(int) const;
QStringList propertyNames() const;
inline Data *overrideData(Data *) const;
inline bool isAllowedInRevision(Data *) const;
inline QDeclarativeEngine *qmlEngine() const;
static Data *property(QDeclarativeEngine *, QObject *, const QScriptDeclarativeClass::Identifier &, Data &);
static Data *property(QDeclarativeEngine *, QObject *, const QString &, Data &);
protected:
virtual void clear();
private:
friend class QDeclarativeEnginePrivate;
struct RData : public Data, public QDeclarativeRefCount {
QScriptDeclarativeClass::PersistentIdentifier identifier;
};
typedef QVector<RData *> IndexCache;
typedef QHash<QString, RData *> StringCache;
typedef QHash<QScriptDeclarativeClass::Identifier, RData *> IdentifierCache;
typedef QVector<int> AllowedRevisionCache;
void updateRecur(QDeclarativeEngine *, const QMetaObject *);
QDeclarativeEngine *engine;
IndexCache indexCache;
IndexCache methodIndexCache;
StringCache stringCache;
IdentifierCache identifierCache;
AllowedRevisionCache allowedRevisionCache;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativePropertyCache::Data::Flags);
QDeclarativePropertyCache::Data::Data()
: flags(0), propType(0), coreIndex(-1), notifyIndex(-1), overrideIndexIsProperty(false), overrideIndex(-1),
revision(0), metaObjectOffset(-1)
{
}
bool QDeclarativePropertyCache::Data::operator==(const QDeclarativePropertyCache::Data &other)
{
return flags == other.flags &&
propType == other.propType &&
coreIndex == other.coreIndex &&
notifyIndex == other.notifyIndex &&
revision == other.revision;
}
QDeclarativePropertyCache::Data *
QDeclarativePropertyCache::overrideData(Data *data) const
{
if (data->overrideIndex < 0)
return 0;
if (data->overrideIndexIsProperty)
return indexCache.at(data->overrideIndex);
else
return methodIndexCache.at(data->overrideIndex);
}
QDeclarativePropertyCache::Data *
QDeclarativePropertyCache::property(const QScriptDeclarativeClass::Identifier &id) const
{
return identifierCache.value(id);
}
QDeclarativePropertyCache::ValueTypeData::ValueTypeData()
: flags(QDeclarativePropertyCache::Data::NoFlags), valueTypeCoreIdx(-1), valueTypePropType(0)
{
}
bool QDeclarativePropertyCache::ValueTypeData::operator==(const ValueTypeData &o)
{
return flags == o.flags &&
valueTypeCoreIdx == o.valueTypeCoreIdx &&
valueTypePropType == o.valueTypePropType;
}
bool QDeclarativePropertyCache::isAllowedInRevision(Data *data) const
{
return (data->metaObjectOffset == -1 && data->revision == 0) ||
(allowedRevisionCache[data->metaObjectOffset] >= data->revision);
}
QDeclarativeEngine *QDeclarativePropertyCache::qmlEngine() const
{
return engine;
}
QT_END_NAMESPACE
#endif // QDECLARATIVEPROPERTYCACHE_P_H
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