diff options
Diffstat (limited to 'src/declarative/qml/qmlpropertycache_p.h')
| -rw-r--r-- | src/declarative/qml/qmlpropertycache_p.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/declarative/qml/qmlpropertycache_p.h b/src/declarative/qml/qmlpropertycache_p.h new file mode 100644 index 0000000..f1b1219 --- /dev/null +++ b/src/declarative/qml/qmlpropertycache_p.h @@ -0,0 +1,152 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 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 QMLPROPERTYCACHE_P_H +#define QMLPROPERTYCACHE_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/qmlrefcount_p.h> +#include <private/qscriptdeclarativeclass_p.h> +#include <QtCore/qvector.h> + +QT_BEGIN_NAMESPACE + +class QmlEngine; +class QMetaProperty; +class QmlPropertyCache : public QmlRefCount +{ +public: + QmlPropertyCache(); + virtual ~QmlPropertyCache(); + + struct Data { + inline Data(); + inline bool operator==(const Data &); + + enum Flag { + // Can apply to all properties, except IsFunction + IsConstant = 0x00000001, + IsWritable = 0x00000002, + + // These are mutually exclusive + IsFunction = 0x00000004, + IsQObjectDerived = 0x00000008, + IsEnumType = 0x00000010, + IsQmlList = 0x00000020, + IsQList = 0x00000040, + IsQmlBinding = 0x00000080 + }; + Q_DECLARE_FLAGS(Flags, Flag) + + bool isValid() const { return coreIndex != -1; } + + Flags flags; + int propType; + int coreIndex; + int notifyIndex; + QString name; + + void load(const QMetaProperty &); + void load(const QMetaMethod &); + }; + +#if 0 + struct ValueTypeData { + 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 + }; +#endif + + static QmlPropertyCache *create(QmlEngine *, 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; + +private: + struct RData : public Data, public QmlRefCount { + QScriptDeclarativeClass::PersistentIdentifier identifier; + }; + + typedef QVector<RData *> IndexCache; + typedef QHash<QString, RData *> StringCache; + typedef QHash<QScriptDeclarativeClass::Identifier, RData *> IdentifierCache; + + IndexCache indexCache; + StringCache stringCache; + IdentifierCache identifierCache; +}; +Q_DECLARE_OPERATORS_FOR_FLAGS(QmlPropertyCache::Data::Flags); + +QmlPropertyCache::Data::Data() +: flags(0), propType(0), coreIndex(-1), notifyIndex(-1) +{ +} + +bool QmlPropertyCache::Data::operator==(const QmlPropertyCache::Data::Data &other) +{ + return flags == other.flags && + propType == other.propType && + coreIndex == other.coreIndex && + notifyIndex == other.notifyIndex && + name == other.name; +} + +QmlPropertyCache::Data * +QmlPropertyCache::property(const QScriptDeclarativeClass::Identifier &id) const +{ + return identifierCache.value(id); +} + +QT_END_NAMESPACE + +#endif // QMLPROPERTYCACHE_P_H |