C++ 读取XML文件（tinyXML库的应用）

C++读取xml有很多第三方的xml解析库，最近使用tinyxml库来解析，下面直接上应用例子：

Skin.xml文档内容如下：

<UI>
	<Image name="banner" x="0" y= "0"  width="900" height="40" img_src="\img\ui\banner.jpg" />
	<Image name="logo" x="5" y= "5"  width="32" height="32" img_src="\img\ui\logo.png" />
	<Image name="logo" x="863" y= "5"  width="32" height="32" img_src="\img\ui\close.png" />
	<Button id="1001" x="540" y= "360"  width="48" height="48" img_normal="\img\ui\btn_start_normal.png"  img_hover="\img\ui\btn_start_hover.png" img_down="\img\ui\btn_start_normal.png" />
	<Button id="1002" x="540" y= "480"  width="48" height="48" img_normal="\img\ui\btn_stop_normal.png"  img_hover="\img\ui\btn_stop_hover.png" img_down="\img\ui\btn_stop_normal.png" />
	<Button id="1003" x="250" y= "5"  width="48" height="48" img_normal="\img\ui\btn_pre_normal.png"  img_hover="\img\ui\btn_pre_hover.png" img_down="\img\ui\btn_pre_normal.png" />
	<Button id="1004" x="250" y= "845"  width="48" height="48" img_normal="\img\ui\btn_next_normal.png"  img_hover="\img\ui\btn_next_hover.png" img_down="\img\ui\btn_next_normal.png" />
</UI>

　　C++利用tinyxml库读取的关键代码如下：（这里得先说明下，下面代码中的MyButton类是我自己自定义的button类，实现原理和代码在我的另一篇文章：http://www.cnblogs.com/JczmDeveloper/p/3494615.html）：

#include "tinyxml/tinyxml.h"
void LoadSkin(LPCTSTR lpszRelativePath,LPCTSTR lpszXmlName)
{

	CString strCurDir = Util::GetCurrentDir();//获取当前目录
	CString strRelativePath = lpszRelativePath;
	CString strXmlName = lpszXmlName;
	strCurDir += strRelativePath;

	CString strXmlPath = strCurDir + L"\\"+ strXmlName;
	USES_CONVERSION;
	LPCSTR lpStr =NULL;
	lpStr = T2A(strXmlPath.GetBuffer(strXmlPath.GetLength()));
	//加载xml文件
	TiXmlDocument* pDoc = new TiXmlDocument(lpStr);
	bool bLoadOk = pDoc->LoadFile();
	//读取xml文件
	CString strX ,strY,strWidth,strHeight,strImgSrc;
	int nX =0,nY=0,nWidth=0,nHeight=0;
	int nID = 0;
	CString strID,strBtnNormal,strBtnHover,strBtnDown;
	CString strElementType;
	CString strAttrName = L"";

	TiXmlElement* pRootElement = pDoc->RootElement();
	TiXmlElement* pElement = pRootElement->FirstChildElement();
	while(pElement)
	{

		strElementType = pElement->Value();
		if(strElementType == L"Button")
		{
			//读取当前元素节点
			TiXmlAttribute*	pAttribute = pElement->FirstAttribute();
			while(pAttribute)
			{
				strAttrName = pAttribute->Name();
				if(strAttrName ==L"id")
					strID = pAttribute->Value();
				else if(strAttrName == L"x")
					strX =pAttribute->Value();
				else if(strAttrName == L"y")
					strY = pAttribute->Value();
				else if(strAttrName == L"width")
					strWidth = pAttribute->Value();
				else if(strAttrName == L"height")
					strHeight = pAttribute->Value();
				else if(strAttrName == L"img_normal")
					strBtnNormal = pAttribute->Value();
				else if(strAttrName == L"img_hover")
					strBtnHover = pAttribute->Value();
				else if(strAttrName == L"img_down")
					strBtnDown = pAttribute->Value();
				pAttribute = pAttribute->Next();
			}

			nID = _ttoi(strID);
			nX = _ttoi(strX);
			nY = _ttoi(strY);
			nWidth = _ttoi(strWidth);
			nHeight = _ttoi(strHeight);

			CString szDir = Util::GetCurrentDir();
			strBtnNormal = szDir + strBtnNormal;
			strBtnHover = szDir + strBtnHover;
			strBtnDown = szDir + strBtnDown;
			CRect rt;
			rt.top =  nX;
			rt.left = nY;
			rt.right = rt.left + nWidth;
			rt.bottom = rt.top + nHeight;
			MyButton* pButton = new MyButton;
			pButton->SetBtnBmp(strBtnNormal,strBtnHover,strBtnDown);
			pButton->Create(m_hWnd,rt,NULL,WS_CHILD|WS_VISIBLE);
			pButton->SetBtnID(nID);
		}
		else if(strElementType == L"Image")
		{
			//读取当前元素节点
			TiXmlAttribute*	pAttribute = pElement->FirstAttribute();
			while(pAttribute)
			{
				strAttrName = pAttribute->Name();
				if(strAttrName == L"x")
					strX =pAttribute->Value();
				else if(strAttrName == L"y")
					strY = pAttribute->Value();
				else if(strAttrName == L"width")
					strWidth = pAttribute->Value();
				else if(strAttrName == L"height")
					strHeight = pAttribute->Value();
				else if(strAttrName == L"img_src")
					strImgSrc = pAttribute->Value();
				pAttribute = pAttribute->Next();
			}
			nX = _ttoi(strX);
			nY = _ttoi(strY);
			nWidth = _ttoi(strWidth);
			nHeight = _ttoi(strHeight);

			CString szDir = Util::GetCurrentDir();
			CString strImgPath = szDir + strImgSrc;
			Graphics graphics(GetWindowDC());

			Image img(strImgPath,FALSE);
			graphics.DrawImage(&img,nX,nY,nWidth,nHeight);
		}

		//下一个元素节点
		pElement = pElement->NextSiblingElement();
	}

}