自学教程：C++ updateChildList函数代码示例

void GraphicsLayerChromium::setContentsToCanvas(PlatformLayer* platformLayer){    bool childrenChanged = false;    if (platformLayer) {        platformLayer->setDelegate(this);        if (m_contentsLayer.get() != platformLayer) {            setupContentsLayer(platformLayer);            m_contentsLayer = platformLayer;            m_contentsLayerPurpose = ContentsLayerForCanvas;            childrenChanged = true;        }        m_contentsLayer->setNeedsDisplay();        updateContentsRect();    } else {        if (m_contentsLayer) {            childrenChanged = true;            // The old contents layer will be removed via updateChildList.            m_contentsLayer = 0;        }    }    if (childrenChanged)        updateChildList();}

void GraphicsLayer::addLinkHighlight(LinkHighlightClient* linkHighlight){    ASSERT(linkHighlight && !m_linkHighlights.contains(linkHighlight));    m_linkHighlights.append(linkHighlight);    linkHighlight->layer()->setWebLayerClient(this);    updateChildList();}

	void cWindow::update(float elapsedtime, int x, int y)	{		if (!getShow()) return ;		if (isIn(x, y))	_getGui()->setOverWindow(this);		updateChildList(elapsedtime, x, y);	}

bool GraphicsLayer::setChildren(const GraphicsLayerVector& newChildren){    // If the contents of the arrays are the same, nothing to do.    if (newChildren == m_children)        return false;    removeAllChildren();    size_t listSize = newChildren.size();    for (size_t i = 0; i < listSize; ++i)        addChildInternal(newChildren[i]);    updateChildList();    return true;}

void GraphicsLayer::removeLinkHighlight(LinkHighlightClient* linkHighlight){    m_linkHighlights.remove(m_linkHighlights.find(linkHighlight));    updateChildList();}

void GraphicsLayer::addChild(GraphicsLayer* childLayer){    addChildInternal(childLayer);    updateChildList();}