C++ QQmlType::qmlTypeName方法代码示例

void tst_qqmlmetatype::qmlType()
{
    QQmlType *type = QQmlMetaType::qmlType(QString("ParserStatusTestType"), QString("Test"), 1, 0);
    QVERIFY(type);
    QVERIFY(type->module() == QLatin1String("Test"));
    QVERIFY(type->elementName() == QLatin1String("ParserStatusTestType"));
    QCOMPARE(type->qmlTypeName(), QLatin1String("Test/ParserStatusTestType"));

    type = QQmlMetaType::qmlType("Test/ParserStatusTestType", 1, 0);
    QVERIFY(type);
    QVERIFY(type->module() == QLatin1String("Test"));
    QVERIFY(type->elementName() == QLatin1String("ParserStatusTestType"));
    QCOMPARE(type->qmlTypeName(), QLatin1String("Test/ParserStatusTestType"));
}

static void addTypeInfo(QQuickItem *object, TasObject* objectInfo)
{
    QString typeName;
    QQmlType *type = QQmlMetaType::qmlType(object->metaObject());
    if (type) {
        typeName = type->qmlTypeName();
        int lastSlash = typeName.lastIndexOf(QLatin1Char('/'));
        if (lastSlash != -1)
            typeName = typeName.mid(lastSlash+1);
    } else {
        typeName = QString::fromUtf8(object->metaObject()->className());
        int marker = typeName.indexOf(QLatin1String("_QMLTYPE_"));
        if (marker != -1)
            typeName = typeName.left(marker);

        marker = typeName.indexOf(QLatin1String("_QML_"));
        if (marker != -1) {
            typeName = typeName.left(marker);
            typeName += QLatin1Char('*');
            type = QQmlMetaType::qmlType(QMetaType::type(typeName.toLatin1()));
            if (type) {
                typeName = type->qmlTypeName();
                int lastSlash = typeName.lastIndexOf(QLatin1Char('/'));
                if (lastSlash != -1)
                    typeName = typeName.mid(lastSlash+1);
            }
        }
    }

    if (!typeName.isEmpty()) {
        objectInfo->setType(typeName);
    }

    objectInfo->addAttribute("QML_NATIVE_TYPE", typeName);

    QQmlData *ddata = QQmlData::get(object, false);
    if (ddata && ddata->outerContext && !ddata->outerContext->url.isEmpty()) {
        objectInfo->addAttribute("QML_DEFINED_IN_URL", ddata->outerContext->url.toString());
        objectInfo->addAttribute("QML_DEFINED_IN_LINE", ddata->lineNumber);
        objectInfo->addAttribute("QML_DEFINED_IN_COLUMN", ddata->columnNumber);
    }
}

void tst_qqmlmetatype::compositeType()
{
    QQmlEngine engine;

    //Loading the test file also loads all composite types it imports
    QQmlComponent c(&engine, testFileUrl("testImplicitComposite.qml"));
    QObject* obj = c.create();
    QVERIFY(obj);

    QQmlType *type = QQmlMetaType::qmlType(QString("ImplicitType"), QString(""), 1, 0);
    QVERIFY(type);
    QVERIFY(type->module() == QLatin1String(""));
    QVERIFY(type->elementName() == QLatin1String("ImplicitType"));
    QCOMPARE(type->qmlTypeName(), QLatin1String("ImplicitType"));
    QCOMPARE(type->sourceUrl(), testFileUrl("ImplicitType.qml"));
}

bool ServerNodeInstance::isSubclassOf(QObject *object, const QByteArray &superTypeName)
{
    if (object == 0)
        return false;

    const QMetaObject *metaObject = object->metaObject();

    while (metaObject) {
         QQmlType *qmlType =  QQmlMetaType::qmlType(metaObject);
         if (qmlType && qmlType->qmlTypeName() == superTypeName) // ignore version numbers
             return true;

         if (metaObject->className() == superTypeName)
             return true;

         metaObject = metaObject->superClass();
    }

    return false;
}

bool QmcTypeCompiler::createTypeMap()
{
    // qqmltypecompiler.cpp:81
    const QHash<int, QmlCompilation::TypeReference> &resolvedTypes = compilation->typeReferences;
    for (QHash<int, QmlCompilation::TypeReference>::ConstIterator resolvedType = resolvedTypes.constBegin(), end = resolvedTypes.constEnd();
         resolvedType != end; ++resolvedType) {
        QScopedPointer<QQmlCompiledData::TypeReference> ref(new QQmlCompiledData::TypeReference);
        QQmlType *qmlType = resolvedType->type;
        if (resolvedType.value().composite) {
            // qqmltypecompiler.cpp:87
            if (resolvedType->needsCreation && qmlType->isCompositeSingleton()) {
                QQmlError error;
                QString reason = tr("Composite Singleton Type %1 is not creatable.").arg(qmlType->qmlTypeName());
                error.setDescription(reason);
                error.setColumn(resolvedType->location.column);
                error.setLine(resolvedType->location.line);
                recordError(error);
                return false;
            }
            // qqmltypecompiler.cpp:96
            Q_ASSERT(resolvedType->component);
            Q_ASSERT(resolvedType->component->compiledData);
            ref->component = resolvedType->component->compiledData;
            ref->component->addref();
        } else if (qmlType) {
            ref->type = qmlType;
            Q_ASSERT(ref->type);

            if (resolvedType->needsCreation && !ref->type->isCreatable()) {
                QQmlError error;
                QString reason = ref->type->noCreationReason();
                if (reason.isEmpty())
                    reason = tr("Element is not creatable.");
                error.setDescription(reason);
                error.setColumn(resolvedType->location.column);
                error.setLine(resolvedType->location.line);
                error.setUrl(compilation->url);
                recordError(error);
                return false;
            }

            if (ref->type->containsRevisionedAttributes()) {
                QQmlError cacheError;
                ref->typePropertyCache = QQmlEnginePrivate::get(compilation->engine)->cache(
                                                        ref->type,
                                                        resolvedType->minorVersion,
                                                        cacheError);
                if (!ref->typePropertyCache) {
                    cacheError.setColumn(resolvedType->location.column);
                    cacheError.setLine(resolvedType->location.line);
                    recordError(cacheError);
                    return false;
                }
                ref->typePropertyCache->addref();
            }
        }
        ref->majorVersion = resolvedType->majorVersion;
        ref->minorVersion = resolvedType->minorVersion;
        ref->doDynamicTypeCheck();
        compiledData->resolvedTypes.insert(resolvedType.key(), ref.take());
    }
    return true;
}

void tst_QQmlEngineDebugService::recursiveObjectTest(
        QObject *o, const QmlDebugObjectReference &oref, bool recursive) const
{
    const QMetaObject *meta = o->metaObject();

    QQmlType *type = QQmlMetaType::qmlType(meta);
    QString className = type ? QString(type->qmlTypeName())
                             : QString(meta->className());
    className = className.mid(className.lastIndexOf(QLatin1Char('/'))+1);

    QCOMPARE(oref.debugId, QQmlDebugService::idForObject(o));
    QCOMPARE(oref.name, o->objectName());
    QCOMPARE(oref.className, className);
    QCOMPARE(oref.contextDebugId, QQmlDebugService::idForObject(
                 qmlContext(o)));

    const QObjectList &children = o->children();
    for (int i=0; i<children.count(); i++) {
        QObject *child = children[i];
        if (!qmlContext(child))
            continue;
        int debugId = QQmlDebugService::idForObject(child);
        QVERIFY(debugId >= 0);

        QmlDebugObjectReference cref;
        foreach (const QmlDebugObjectReference &ref, oref.children) {
            if (ref.debugId == debugId) {
                cref = ref;
                break;
            }
        }
        QVERIFY(cref.debugId >= 0);

        if (recursive)
            recursiveObjectTest(child, cref, true);
    }

    foreach (const QmlDebugPropertyReference &p, oref.properties) {
        QCOMPARE(p.objectDebugId, QQmlDebugService::idForObject(o));

        // signal properties are fake - they are generated from QQmlAbstractBoundSignal children
        if (p.name.startsWith("on") && p.name.length() > 2 && p.name[2].isUpper()) {
            QString signal = p.value.toString();
            QQmlBoundSignalExpression *expr = QQmlPropertyPrivate::signalExpression(QQmlProperty(o, p.name));
            QVERIFY(expr && expr->expression() == signal);
            QVERIFY(p.valueTypeName.isEmpty());
            QVERIFY(p.binding.isEmpty());
            QVERIFY(!p.hasNotifySignal);
            continue;
        }

        QMetaProperty pmeta = meta->property(meta->indexOfProperty(p.name.toUtf8().constData()));

        QCOMPARE(p.name, QString::fromUtf8(pmeta.name()));

        if (pmeta.type() < QVariant::UserType && pmeta.userType() !=
                QMetaType::QVariant) // TODO test complex types
            QCOMPARE(p.value , pmeta.read(o));

        if (p.name == "parent")
            QVERIFY(p.valueTypeName == "QGraphicsObject*" ||
                    p.valueTypeName == "QQuickItem*");
        else
            QCOMPARE(p.valueTypeName, QString::fromUtf8(pmeta.typeName()));

        QQmlAbstractBinding *binding =
                QQmlPropertyPrivate::binding(
                    QQmlProperty(o, p.name));
        if (binding)
            QCOMPARE(binding->expression(), p.binding);

        QCOMPARE(p.hasNotifySignal, pmeta.hasNotifySignal());

        QVERIFY(pmeta.isValid());
    }
}

QQmlInfo::~QQmlInfo()
{
    if (0 == --d->ref) {
        QList<QQmlError> errors = d->errors;

        QQmlEngine *engine = 0;

        if (!d->buffer.isEmpty()) {
            QQmlError error;

            QObject *object = const_cast<QObject *>(d->object);

            if (object) {
                engine = qmlEngine(d->object);
                QString typeName;
                QQmlType *type = QQmlMetaType::qmlType(object->metaObject());
                if (type) {
                    typeName = type->qmlTypeName();
                    int lastSlash = typeName.lastIndexOf(QLatin1Char('/'));
                    if (lastSlash != -1)
                        typeName = typeName.mid(lastSlash+1);
                } else {
                    typeName = QString::fromUtf8(object->metaObject()->className());
                    int marker = typeName.indexOf(QLatin1String("_QMLTYPE_"));
                    if (marker != -1)
                        typeName = typeName.left(marker);

                    marker = typeName.indexOf(QLatin1String("_QML_"));
                    if (marker != -1) {
                        typeName = typeName.left(marker);
                        typeName += QLatin1Char('*');
                        type = QQmlMetaType::qmlType(QMetaType::type(typeName.toLatin1()));
                        if (type) {
                            typeName = type->qmlTypeName();
                            int lastSlash = typeName.lastIndexOf(QLatin1Char('/'));
                            if (lastSlash != -1)
                                typeName = typeName.mid(lastSlash+1);
                        }
                    }
                }

                d->buffer.prepend(QLatin1String("QML ") + typeName + QLatin1String(": "));

                QQmlData *ddata = QQmlData::get(object, false);
                if (ddata && ddata->outerContext && !ddata->outerContext->url.isEmpty()) {
                    error.setUrl(ddata->outerContext->url);
                    error.setLine(ddata->lineNumber);
                    error.setColumn(ddata->columnNumber);
                }
            }

            error.setDescription(d->buffer);

            errors.prepend(error);
        }

        QQmlEnginePrivate::warning(engine, errors);

        delete d;
    }
}