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();
} }