Method processAnimations

snap_drawing/src/snap_drawing/cpp/Layers/Layer.cpp:774–808

};

void Layer::processAnimations(Duration delta) {
    _enqueuedFrame = std::nullopt;

    if (_animations.empty()) {
        return;
    }

    Valdi::SmallVector<AnimationToProcess, 4> collectedAnimations;

    // Collect all the animations to process
    {
        auto animations = _animations.readAccess();
        for (const auto& it : animations) {
            collectedAnimations.emplace_back(it.first, it.second);
        }
    }

    // Process all our animations with the delta.
    // We remove the ones that have completed
    for (const auto& animationToProcess : collectedAnimations) {
        auto completed = animationToProcess.animation->run(*this, delta);
        if (completed) {
            {
                auto animations = _animations.writeAccess();
                const auto& it = animations->find(animationToProcess.key);
                if (it != animations->end() && it->second == animationToProcess.animation) {
                    animations->erase(it);
                }
            }
            animationToProcess.animation->complete(*this);
        }
    }

    scheduleProcessAnimationsIfNeeded();
}

std::optional<Point> Layer::convertPointToLayer(Point point, const Valdi::Ref<Layer>& childLayer) const {
    thread_local std::vector<Ref<Layer>> kDescendants;