Method updateBatchNode

core/2d/Label.cpp:1165–1207

}

void Label::updateBatchNode()
{
    const std::unordered_map<unsigned int, Texture2D*>& textures = _fontAtlas->getTextures();
    const size_t textureCount = textures.size();
    const size_t nodeCount = _batchNodes.size();

    if (textureCount > nodeCount)
    {
        _batchNodes.reserve(textureCount);

        for (size_t index = nodeCount; index < textureCount; ++index)
        {
            SpriteBatchNode* const batchNode = SpriteBatchNode::createWithTexture(textures.at(index));
            if (batchNode)
            {
                _isOpacityModifyRGB = batchNode->getTexture()->hasPremultipliedAlpha();
                _blendFunc          = batchNode->getBlendFunc();
                batchNode->setAnchorPoint(Vec2::ANCHOR_TOP_LEFT);
                batchNode->setPosition(Vec2::ZERO);
                _batchNodes.pushBack(batchNode);
            }
        }
    }
    if (_batchNodes.empty())
    {
        return;
    }

    // optimize for one-texture-only scenario if multiple textures, then we
    // should count how many chars are per texture
    if (textureCount == 1)
        _batchNodes.at(0)->reserveCapacity(_utf32Text.size());

    _reusedLetter->setBatchNode(_batchNodes.at(0));

    computeAlignmentOffset();

    updateQuads();

    updateLabelLetters();

    updateColor();
}

bool Label::computeHorizontalKernings(const std::u32string& stringToRender)
{