mirror of https://github.com/snes9xgit/snes9x.git
164 lines
3.4 KiB
C++
164 lines
3.4 KiB
C++
#include "CXML.h"
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#include <windows.h>
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#include <stdio.h>
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#include "_tfwopen.h"
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#ifndef UNICODE
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#define _tFromTCHAR(x) CPToWide(x,CP_ACP)
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#define _tToTCHAR(x) WideToCP(x,CP_ACP)
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#else
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#define _tFromTCHAR
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#define _tToTCHAR
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#endif
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CXML::CXML(void)
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{
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pXMLDoc = NULL;
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xmlLoaded = false;
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nodeContent = NULL;
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attrValue = NULL;
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}
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CXML::~CXML(void)
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{
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unloadXml();
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}
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void CXML::unloadXml()
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{
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if(pXMLDoc) {
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pXMLDoc->Release();
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pXMLDoc = NULL;
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}
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if(nodeContent) {
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delete [] nodeContent;
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nodeContent = NULL;
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}
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if(attrValue) {
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delete [] attrValue;
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attrValue = NULL;
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}
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xmlLoaded = false;
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}
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bool CXML::loadXmlFile(TCHAR const *file)
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{
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unloadXml();
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if(!file)
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return false;
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TCHAR errorMsg[MAX_PATH + 50];
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HRESULT hr = CoCreateInstance(CLSID_DOMDocument,NULL,CLSCTX_INPROC_SERVER,IID_PPV_ARGS(&pXMLDoc));
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if(FAILED(hr)) {
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MessageBox(NULL, TEXT("Error creating XML Parser"), TEXT("XML Error"),
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MB_OK|MB_ICONEXCLAMATION);
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pXMLDoc = NULL;
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return false;
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}
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VARIANT fileName;
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VARIANT_BOOL ret;
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fileName.vt = VT_BSTR;
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fileName.bstrVal = SysAllocString(_tFromTCHAR(file));
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hr = pXMLDoc->load(fileName,&ret);
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SysFreeString(fileName.bstrVal);
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if(FAILED(hr) || hr==S_FALSE) {
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_stprintf(errorMsg,TEXT("Error loading XML file:\n%s"),file);
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MessageBox(NULL, errorMsg, TEXT("XML Error"),
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MB_OK|MB_ICONEXCLAMATION);
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unloadXml();
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return false;
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}
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hr = pXMLDoc->get_documentElement(&pXrootElement);
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if(FAILED(hr) || hr==S_FALSE) {
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_stprintf(errorMsg,TEXT("Error loading root element from file:\n%s"),file);
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MessageBox(NULL, errorMsg, TEXT("XML Error"), MB_OK|MB_ICONEXCLAMATION);
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unloadXml();
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return false;
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}
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xmlLoaded = true;
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return true;
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}
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IXMLDOMNode *CXML::getNode(TCHAR const *searchNode)
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{
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IXMLDOMNode *pXDN;
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BSTR queryString=SysAllocString(_tFromTCHAR(searchNode));
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HRESULT hr = pXMLDoc->selectSingleNode(queryString,&pXDN);
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SysFreeString(queryString);
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return pXDN;
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}
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TCHAR *CXML::getAttribute(TCHAR const *searchNode, TCHAR const *attrName)
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{
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IXMLDOMNode *pXDN = getNode(searchNode);
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if(!pXDN)
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return NULL;
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VARIANT attributeValue;
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BSTR attributeName;
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IXMLDOMElement * pXDE = NULL;
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HRESULT hr = pXDN->QueryInterface(IID_PPV_ARGS(&pXDE));
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if(FAILED(hr)) {
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pXDN->Release();
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return NULL;
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}
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attributeName=SysAllocString(_tFromTCHAR(attrName));
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pXDE->getAttribute(attributeName,&attributeValue);
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SysFreeString(attributeName);
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pXDE->Release();
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if(attributeValue.vt!=VT_BSTR)
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return NULL;
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if(attrValue) {
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delete [] attrValue;
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attrValue = NULL;
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}
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attrValue = new TCHAR[lstrlen(_tToTCHAR(attributeValue.bstrVal)) + 1];
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lstrcpy(attrValue,_tToTCHAR(attributeValue.bstrVal));
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SysFreeString(attributeValue.bstrVal);
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return attrValue;
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}
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TCHAR *CXML::getNodeContent(TCHAR const *searchNode)
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{
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IXMLDOMNode *pXDN = getNode(searchNode);
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if(!pXDN)
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return NULL;
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BSTR nodeText;
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HRESULT hr = pXDN->get_text(&nodeText);
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pXDN->Release();
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if(hr != S_OK)
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return NULL;
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if(nodeContent) {
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delete [] nodeContent;
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nodeContent = NULL;
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}
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nodeContent = new TCHAR[lstrlen(_tToTCHAR(nodeText)) + 1];
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lstrcpy(nodeContent,_tToTCHAR(nodeText));
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SysFreeString(nodeText);
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return nodeContent;
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}
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