void DockContainer::restoreState(const QJsonObject &root)
{
    restoreContainer(root);
}

QWidget* DockContainer::restoreContainer(const QJsonObject &root)
{
    auto type = root.value("type").toString();

    QWidget* widget = nullptr;
    if(type == "splitter")
    {
        restoreSplitter(root);
    }
    else if(type == "section") /// create new section and restore it
    {
        return restoreSection(root);
    }

    return widget;
}

bool DockContainer::registerSection(DockSection *section)
{
    if(!section)
        return false;

    mSections.push_back(section);
    section->setDockContainer(this);

    return true;
}

QSplitter *DockContainer::restoreSplitter(const QJsonObject &root)
{
    auto orientation = root.value("orientation").toString() == "vertical" ? Qt::Vertical : Qt::Horizontal;
    auto items = root.value("items").toArray();
    auto sizes = root.value("sizes").toArray();

    auto splitter = createSplitter(orientation, this);
    if(!mSplitter)
    {
        mSplitter = splitter;
        mMainLayout->addWidget(mSplitter);
    }

    QList<int> sizesList;
    for(int i = 0; i < items.size(); i++)
    {
        QWidget* item = restoreSplitter(items.at(i).toObject());
        if(item)
        {
            splitter->addWidget(item);
            sizesList.append(sizes.at(i).toInt());
        }
    }

    splitter->setSizes(sizesList);

    return splitter;
}

DockSection *DockContainer::restoreSection(const QJsonObject &root)
{
    auto section = mDockManager->restoreSection(root);
    registerSection(section);

    return section;
}