Method init

tests/cpp-tests/Source/LabelTest/LabelTest.cpp:615–691

static float menuItemPaddingCenter = 50;

bool LabelFNTMultiLineAlignment::init()
{
    if (!AtlasDemoNew::init())
    {
        return false;
    }

    auto listener            = EventListenerTouchAllAtOnce::create();
    listener->onTouchesBegan = AX_CALLBACK_2(LabelFNTMultiLineAlignment::onTouchesBegan, this);
    listener->onTouchesMoved = AX_CALLBACK_2(LabelFNTMultiLineAlignment::onTouchesMoved, this);
    listener->onTouchesEnded = AX_CALLBACK_2(LabelFNTMultiLineAlignment::onTouchesEnded, this);

    _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
    // ask director the the window size
    auto size = Director::getInstance()->getWinSize();

    // create and initialize a Label
    this->_label = Label::createWithBMFont("fonts/markerFelt.fnt", "", TextHAlignment::CENTER, size.width / 1.5);

    this->_arrowsBar = Sprite::create("Images/arrowsBar.png");
    this->_arrows    = Sprite::create("Images/arrows.png");

    MenuItemFont::setFontSize(20);
    auto longSentences =
        MenuItemFont::create("Long Flowing Sentences", AX_CALLBACK_1(LabelFNTMultiLineAlignment::stringChanged, this));
    auto lineBreaks = MenuItemFont::create("Short Sentences With Intentional Line Breaks",
                                           AX_CALLBACK_1(LabelFNTMultiLineAlignment::stringChanged, this));
    auto mixed      = MenuItemFont::create("Long Sentences Mixed With Intentional Line Breaks",
                                           AX_CALLBACK_1(LabelFNTMultiLineAlignment::stringChanged, this));
    auto stringMenu = Menu::create(longSentences, lineBreaks, mixed, nullptr);
    stringMenu->alignItemsVertically();

    longSentences->setTag(LongSentences);
    lineBreaks->setTag(LineBreaks);
    mixed->setTag(Mixed);

    _menuItems.emplace_back(longSentences);
    _menuItems.emplace_back(lineBreaks);
    _menuItems.emplace_back(mixed);

    MenuItemFont::setFontSize(30);

    auto left   = MenuItemFont::create("Left", AX_CALLBACK_1(LabelFNTMultiLineAlignment::alignmentChanged, this));
    auto center = MenuItemFont::create("Center", AX_CALLBACK_1(LabelFNTMultiLineAlignment::alignmentChanged, this));
    auto right  = MenuItemFont::create("Right", AX_CALLBACK_1(LabelFNTMultiLineAlignment::alignmentChanged, this));

    auto alignmentMenu = Menu::create(left, center, right, nullptr);
    alignmentMenu->alignItemsHorizontallyWithPadding(alignmentItemPadding);

    left->setTag(LeftAlign);
    center->setTag(CenterAlign);
    right->setTag(RightAlign);

    // position the label on the center of the screen
    this->_label->setPosition(Vec2(size.width / 2, size.height / 2));

    this->_arrowsBar->setVisible(false);