C++ LLXMLNodePtr::getChild方法代码示例

void LLUICtrl::initFromXML(LLXMLNodePtr node, LLView* parent)
{
	std::string name;
	if(node->getAttributeString("name", name))
		setName(name);

	BOOL has_tab_stop = hasTabStop();
	node->getAttributeBOOL("tab_stop", has_tab_stop);

	setTabStop(has_tab_stop);

	node->getAttributeBOOL("requests_front", mRequestsFront);

	std::string str = node->getName()->mString;
	std::string attrib_str;
	LLXMLNodePtr child_node;

	//Since so many other callback 'types' piggyback off of the commitcallback registrar as well as use the same callback signature
	//we can assemble a nice little static list to iterate down instead of copy-pasting mostly similar code for each instance.
	//Validate/enable callbacks differ, as it uses its own registry/callback signature. This could be worked around with a template, but keeping
	//all the code local to this scope is more beneficial.
	typedef boost::signals2::connection (LLUICtrl::*commit_fn)( const commit_signal_t::slot_type& cb );
	static std::pair<std::string,commit_fn> sCallbackRegistryMap[3] = 
	{
		std::pair<std::string,commit_fn>(".commit_callback",&LLUICtrl::setCommitCallback),
		std::pair<std::string,commit_fn>(".mouseenter_callback",&LLUICtrl::setMouseEnterCallback),
		std::pair<std::string,commit_fn>(".mouseleave_callback",&LLUICtrl::setMouseLeaveCallback)
	};
	for(S32 i= 0; i < sizeof(sCallbackRegistryMap)/sizeof(sCallbackRegistryMap[0]);++i)
	{
		if(node->getChild((str+sCallbackRegistryMap[i].first).c_str(),child_node,false))
		{
			if(child_node->getAttributeString("function",attrib_str))
			{
				commit_callback_t* func = (CommitCallbackRegistry::getValue(attrib_str));
				if (func)
				{
					if(child_node->getAttributeString("parameter",attrib_str))
						(this->*sCallbackRegistryMap[i].second)(boost::bind((*func), this, LLSD(attrib_str)));
					else
						(this->*sCallbackRegistryMap[i].second)(commit_signal_t::slot_type(*func));
				}
			}
		}
	}

	if(node->getChild((str+".validate_callback").c_str(),child_node,false))
	{
		if(child_node->getAttributeString("function",attrib_str))
		{
			enable_callback_t* func = (EnableCallbackRegistry::getValue(attrib_str));
			if (func)
			{
				if(child_node->getAttributeString("parameter",attrib_str))
					setValidateCallback(boost::bind((*func), this, LLSD(attrib_str)));
				else
					setValidateCallback(enable_signal_t::slot_type(*func));
			}
		}
	}
	LLView::initFromXML(node, parent);
	
	if (node->getAttributeString("enabled_control", attrib_str))
	{
		LLControlVariable* control = findControl(attrib_str);
		if (control)
			setEnabledControlVariable(control);
	}

	if (node->getAttributeString("disabled_control", attrib_str))
	{
		LLControlVariable* control = findControl(attrib_str);
		if (control)
			setDisabledControlVariable(control);
	}

	if(node->getAttributeString("visibility_control",attrib_str) || node->getAttributeString("visiblity_control",attrib_str))
	{
		LLControlVariable* control = findControl(attrib_str);
		if (control)
			setMakeVisibleControlVariable(control);
	}
	if(node->getAttributeString("invisibility_control",attrib_str) || node->getAttributeString("invisiblity_control",attrib_str))
	{
		LLControlVariable* control = findControl(attrib_str);
		if (control)
			setMakeInvisibleControlVariable(control);
	}
}