Mac-4.7.4/src/declarative/qml/qdeclarativeintegercache.cpp

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#include "private/qdeclarativeintegercache_p.h"

#include "private/qdeclarativeengine_p.h"
#include "private/qdeclarativemetatype_p.h"

QT_BEGIN_NAMESPACE

QDeclarativeIntegerCache::QDeclarativeIntegerCache(QDeclarativeEngine *e)
: QDeclarativeCleanup(e), engine(e)
{
}

QDeclarativeIntegerCache::~QDeclarativeIntegerCache()
{
    clear();
}

void QDeclarativeIntegerCache::clear()
{
    qDeleteAll(stringCache);
    stringCache.clear();
    identifierCache.clear();
    engine = 0;
}

QString QDeclarativeIntegerCache::findId(int value) const
{
    for (StringCache::ConstIterator iter = stringCache.begin();
            iter != stringCache.end(); ++iter) {
        if (iter.value() && iter.value()->value == value)
            return iter.key();
    }
    return QString();
}

void QDeclarativeIntegerCache::add(const QString &id, int value)
{
    Q_ASSERT(!stringCache.contains(id));

    QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);

    // ### use contextClass
    Data *d = new Data(enginePriv->objectClass->createPersistentIdentifier(id), value);

    stringCache.insert(id, d);
    identifierCache.insert(d->identifier, d);
}

int QDeclarativeIntegerCache::value(const QString &id)
{
    Data *d = stringCache.value(id);
    return d?d->value:-1;
}

QT_END_NAMESPACE