Method prepareLoading

src/core/UBSceneCache.cpp:64–78

}

std::shared_ptr<UBGraphicsScene> UBSceneCache::prepareLoading(std::shared_ptr<UBDocumentProxy> proxy, int pageIndex)
{
    if (mSceneCache.contains({proxy, pageIndex}))
    {
        return value(proxy, pageIndex);
    }

    // no entry in cache; create a cache entry to load scene
    qDebug() << "Preparing to load scene" << pageIndex;
    auto cacheEntry = std::make_shared<SceneCacheEntry>(proxy, pageIndex);

    insertEntry({proxy, pageIndex}, cacheEntry);
    cacheEntry->startLoading();
    return nullptr;
}


void UBSceneCache::insert (std::shared_ptr<UBDocumentProxy> proxy, int pageIndex, std::shared_ptr<UBGraphicsScene> scene)