diff options
Diffstat (limited to 'src/declarative/qml/qdeclarativeintegercache_p.h')
-rw-r--r-- | src/declarative/qml/qdeclarativeintegercache_p.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/declarative/qml/qdeclarativeintegercache_p.h b/src/declarative/qml/qdeclarativeintegercache_p.h new file mode 100644 index 00000000..148f44e2 --- /dev/null +++ b/src/declarative/qml/qdeclarativeintegercache_p.h @@ -0,0 +1,112 @@ +/**************************************************************************** +** +** 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 QDECLARATIVEINTEGERCACHE_P_H +#define QDECLARATIVEINTEGERCACHE_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 <QtCore/qhash.h> + +#include <private/qscriptdeclarativeclass_p.h> + +QT_BEGIN_NAMESPACE + +class QDeclarativeType; +class QDeclarativeEngine; +class QDeclarativeIntegerCache : public QDeclarativeRefCount, public QDeclarativeCleanup +{ +public: + QDeclarativeIntegerCache(QDeclarativeEngine *); + virtual ~QDeclarativeIntegerCache(); + + inline int count() const; + void add(const QString &, int); + int value(const QString &); + QString findId(int value) const; + inline int value(const QScriptDeclarativeClass::Identifier &id) const; + +protected: + virtual void clear(); + +private: + struct Data : public QScriptDeclarativeClass::PersistentIdentifier { + Data(const QScriptDeclarativeClass::PersistentIdentifier &i, int v) + : QScriptDeclarativeClass::PersistentIdentifier(i), value(v) {} + + int value; + }; + + typedef QHash<QString, Data *> StringCache; + typedef QHash<QScriptDeclarativeClass::Identifier, Data *> IdentifierCache; + + StringCache stringCache; + IdentifierCache identifierCache; + QDeclarativeEngine *engine; +}; + +int QDeclarativeIntegerCache::value(const QScriptDeclarativeClass::Identifier &id) const +{ + Data *d = identifierCache.value(id); + return d?d->value:-1; +} + +int QDeclarativeIntegerCache::count() const +{ + return stringCache.count(); +} + +QT_END_NAMESPACE + +#endif // QDECLARATIVEINTEGERCACHE_P_H + |