Method LabelTTFSDF

tests/cpp-tests/Source/LabelTest/LabelTest.cpp:1383–1488

    return "Testing rendering Title of Button on DistanceField";
}
LabelTTFSDF::LabelTTFSDF()
{
    auto size = Director::getInstance()->getWinSize();

    FontFreeType::setGlobalSDFEnabled(false);
    Label* title = Label::createWithTTF("Normal", "fonts/Marker Felt.ttf", 20);
    this->addChild(title);
    title->setPosition(Vec2(size.width * 3 / 4, size.height * 0.75));
    _labelNormal = Label::createWithTTF("Should be the same", "fonts/Marker Felt.ttf", 20);
    this->addChild(_labelNormal);
    _labelNormal->setPosition(Vec2(size.width * 3 / 4, size.height * 0.65));

    FontFreeType::setGlobalSDFEnabled(true);
    title = Label::createWithTTF("SDF", "fonts/Marker Felt.ttf", 20);
    this->addChild(title);
    title->setPosition(Vec2(size.width / 4, size.height * 0.75));
    _labelSDF = Label::createWithTTF("Should be the same", "fonts/Marker Felt.ttf", 20);
    this->addChild(_labelSDF);
    _labelSDF->setPosition(Vec2(size.width / 4, size.height * 0.65));
    auto config                 = _labelSDF->getTTFConfig();
    config.distanceFieldEnabled = true;
    _labelSDF->setTTFConfig(config);

    initToggleLabel("enableItalics", Vec2(size.width * 0.15, size.height * 0.25),
                    [=, this](Object* obj, ax::ui::CheckBox::EventType type) {
        if (type == ax::ui::CheckBox::EventType::SELECTED)
        {
            _labelSDF->enableItalics();
            _labelNormal->enableItalics();
        }
        else
        {
            _labelSDF->disableEffect(ax::LabelEffect::ITALICS);
            _labelNormal->disableEffect(ax::LabelEffect::ITALICS);
        }
    });
    initToggleLabel("enableShadow", Vec2(size.width * 0.15, size.height * 0.35),
                    [=, this](Object* obj, ax::ui::CheckBox::EventType type) {
        if (type == ax::ui::CheckBox::EventType::SELECTED)
        {
            _labelSDF->enableShadow(Color4B::YELLOW, Vec2(-1, -1));
            _labelNormal->enableShadow(Color4B::YELLOW, Vec2(-1, -1));
        }
        else
        {
            _labelSDF->disableEffect(ax::LabelEffect::SHADOW);
            _labelNormal->disableEffect(ax::LabelEffect::SHADOW);
        }
    });
    initToggleLabel("enableBold", Vec2(size.width * 0.15, size.height * 0.45),
                    [=, this](Object* obj, ax::ui::CheckBox::EventType type) {
        if (type == ax::ui::CheckBox::EventType::SELECTED)
        {
            _labelSDF->enableBold();
            _labelNormal->enableBold();
        }
        else
        {