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Diffstat (limited to 'src/declarative/qml/qdeclarativepropertycache_p.h')
| -rw-r--r-- | src/declarative/qml/qdeclarativepropertycache_p.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/declarative/qml/qdeclarativepropertycache_p.h b/src/declarative/qml/qdeclarativepropertycache_p.h new file mode 100644 index 0000000..7f4b174 --- /dev/null +++ b/src/declarative/qml/qdeclarativepropertycache_p.h @@ -0,0 +1,196 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 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 "qdeclarativerefcount_p.h" +#include "qdeclarativecleanup_p.h" + +#include <QtCore/qvector.h> + +#include <private/qscriptdeclarativeclass_p.h> + +QT_BEGIN_NAMESPACE + +class QDeclarativeEngine; +class QMetaProperty; +class QDeclarativePropertyCache : public QDeclarativeRefCount, public QDeclarativeCleanup +{ +public: + QDeclarativePropertyCache(QDeclarativeEngine *); + 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, + + // These are mutualy exclusive + IsFunction = 0x00000008, + IsQObjectDerived = 0x00000010, + IsEnumType = 0x00000020, + IsQList = 0x00000080, + IsQmlBinding = 0x00000100, + IsQScriptValue = 0x00000200, + + // Apply only to IsFunctions + IsVMEFunction = 0x00000400, + HasArguments = 0x00000800 + + }; + Q_DECLARE_FLAGS(Flags, Flag) + + bool isValid() const { return coreIndex != -1; } + + Flags flags; + int propType; + int coreIndex; + int notifyIndex; + + 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 on the value type wrapper + int valueTypeCoreIdx; // The prop index of the access property on the value type wrapper + int valueTypePropType; // The QVariant::Type of access property on the value type wrapper + }; + + void update(QDeclarativeEngine *, const QMetaObject *); + + QDeclarativePropertyCache *copy() const; + void append(QDeclarativeEngine *, const QMetaObject *, Data::Flag propertyFlags = Data::NoFlags, + Data::Flag methodFlags = Data::NoFlags); + + static QDeclarativePropertyCache *create(QDeclarativeEngine *, const QMetaObject *); + static Data create(const QMetaObject *, const QString &); + + inline Data *property(const QScriptDeclarativeClass::Identifier &id) const; + Data *property(const QString &) const; + Data *property(int) const; + QStringList propertyNames() 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: + struct RData : public Data, public QDeclarativeRefCount { + QScriptDeclarativeClass::PersistentIdentifier identifier; + }; + + typedef QVector<RData *> IndexCache; + typedef QHash<QString, RData *> StringCache; + typedef QHash<QScriptDeclarativeClass::Identifier, RData *> IdentifierCache; + + QDeclarativeEngine *engine; + IndexCache indexCache; + StringCache stringCache; + IdentifierCache identifierCache; +}; +Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativePropertyCache::Data::Flags); + +QDeclarativePropertyCache::Data::Data() +: flags(0), propType(0), coreIndex(-1), notifyIndex(-1) +{ +} + +bool QDeclarativePropertyCache::Data::operator==(const QDeclarativePropertyCache::Data &other) +{ + return flags == other.flags && + propType == other.propType && + coreIndex == other.coreIndex && + notifyIndex == other.notifyIndex; +} + +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; +} + +QDeclarativeEngine *QDeclarativePropertyCache::qmlEngine() const +{ + return engine; +} + +QT_END_NAMESPACE + +#endif // QDECLARATIVEPROPERTYCACHE_P_H |