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C++ QExplicitlySharedDataPointer::incubate方法代码示例

本文整理汇总了C++中QExplicitlySharedDataPointer::incubate方法的典型用法代码示例。如果您正苦于以下问题:C++ QExplicitlySharedDataPointer::incubate方法的具体用法?C++ QExplicitlySharedDataPointer::incubate怎么用?C++ QExplicitlySharedDataPointer::incubate使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在QExplicitlySharedDataPointer的用法示例。


在下文中一共展示了QExplicitlySharedDataPointer::incubate方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: incubate

void QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt &i)
{
    if (!compiledData)
        return;

    QML_MEMORY_SCOPE_URL(compiledData->url());

    QExplicitlySharedDataPointer<QQmlIncubatorPrivate> protectThis(this);

    QRecursionWatcher<QQmlIncubatorPrivate, &QQmlIncubatorPrivate::recursion> watcher(this);

    QQmlEngine *engine = compiledData->engine;
    QQmlEnginePrivate *enginePriv = QQmlEnginePrivate::get(engine);

    if (!vmeGuard.isOK()) {
        QQmlError error;
        error.setUrl(compiledData->url());
        error.setDescription(QQmlComponent::tr("Object destroyed during incubation"));
        errors << error;
        progress = QQmlIncubatorPrivate::Completed;

        goto finishIncubate;
    }

    vmeGuard.clear();

    if (progress == QQmlIncubatorPrivate::Execute) {
        enginePriv->referenceScarceResources();
        QObject *tresult = 0;
        tresult = creator->create(subComponentToCreate, /*parent*/0, &i);
        if (!tresult)
            errors = creator->errors;
        enginePriv->dereferenceScarceResources();

        if (watcher.hasRecursed())
            return;

        result = tresult;
        if (errors.isEmpty() && result == 0)
            goto finishIncubate;

        if (result) {
            QQmlData *ddata = QQmlData::get(result);
            Q_ASSERT(ddata);
            //see QQmlComponent::beginCreate for explanation of indestructible
            ddata->indestructible = true;
            ddata->explicitIndestructibleSet = true;
            ddata->rootObjectInCreation = false;
            if (q)
                q->setInitialState(result);
        }

        if (watcher.hasRecursed())
            return;

        if (errors.isEmpty())
            progress = QQmlIncubatorPrivate::Completing;
        else
            progress = QQmlIncubatorPrivate::Completed;

        changeStatus(calculateStatus());

        if (watcher.hasRecursed())
            return;

        if (i.shouldInterrupt())
            goto finishIncubate;
    }

    if (progress == QQmlIncubatorPrivate::Completing) {
        do {
            if (watcher.hasRecursed())
                return;

            QQmlContextData *ctxt = 0;
            ctxt = creator->finalize(i);
            if (ctxt) {
                rootContext = ctxt;
                progress = QQmlIncubatorPrivate::Completed;
                goto finishIncubate;
            }
        } while (!i.shouldInterrupt());
    }

finishIncubate:
    if (progress == QQmlIncubatorPrivate::Completed && waitingFor.isEmpty()) {
        QExplicitlySharedDataPointer<QQmlIncubatorPrivate> isWaiting = waitingOnMe;
        clear();

        if (isWaiting) {
            QRecursionWatcher<QQmlIncubatorPrivate, &QQmlIncubatorPrivate::recursion> watcher(isWaiting.data());
            changeStatus(calculateStatus());
            if (!watcher.hasRecursed())
                isWaiting->incubate(i);
        } else {
            changeStatus(calculateStatus());
        }

        enginePriv->inProgressCreations--;

//.........这里部分代码省略.........
开发者ID:Drakey83,项目名称:steamlink-sdk,代码行数:101,代码来源:qqmlincubator.cpp


注:本文中的QExplicitlySharedDataPointer::incubate方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。