QStringList DicomImageSet::getOrderedDcmFiles(const QString &datasetFileName, const QString & queryString) { HRESULT hr = S_OK; IXMLDOMDocument *pXMLDom = NULL; IXMLDOMNodeList *pFileNodes = NULL; VARIANT_BOOL varStatus; VARIANT varFileName; BSTR bstrQuery; QStringList fileList; CHK_HR(CreateAndInitDOM(&pXMLDom)); CHK_HR(VariantFromString(datasetFileName.toStdWString().c_str(), varFileName)); CHK_HR(pXMLDom->load(varFileName, &varStatus)); if (varStatus != VARIANT_TRUE) { CHK_HR(ReportParseError(pXMLDom, "Failed to load DOM from stocks.xml.")); } bstrQuery = SysAllocString(queryString.toStdWString().c_str()); CHK_ALLOC(bstrQuery); CHK_HR(pXMLDom->selectNodes(bstrQuery, &pFileNodes)); if (pFileNodes) { long nFiles; CHK_HR(pFileNodes->get_length(&nFiles)); for (long i=0; i<nFiles; ++i) { VARIANT varValue; IXMLDOMNode * pFile = NULL; CHK_HR(pFileNodes->get_item(i, &pFile)); CHK_HR(GetAttributeFromNode(pFile, L"path", &varValue)); fileList <<QString::fromWCharArray(_bstr_t(varValue)); SAFE_RELEASE(pFile); } } CleanUp: SAFE_RELEASE(pXMLDom); SAFE_RELEASE(pFileNodes); return fileList; }
void queryNodes() { HRESULT hr = S_OK; IXMLDOMDocument *pXMLDom = NULL; IXMLDOMNodeList *pNodes = NULL; IXMLDOMNode *pNode = NULL; BSTR bstrQuery1 = NULL; BSTR bstrQuery2 = NULL; BSTR bstrNodeName = NULL; BSTR bstrNodeValue = NULL; VARIANT_BOOL varStatus; VARIANT varFileName; VariantInit(&varFileName); CHK_HR(CreateAndInitDOM(&pXMLDom)); CHK_HR(VariantFromString(L"stocks.xml", varFileName)); CHK_HR(pXMLDom->load(varFileName, &varStatus)); if (varStatus != VARIANT_TRUE) { CHK_HR(ReportParseError(pXMLDom, "Failed to load DOM from stocks.xml.")); } // Query a single node. bstrQuery1 = SysAllocString(L"//stock[1]/*"); CHK_ALLOC(bstrQuery1); CHK_HR(pXMLDom->selectSingleNode(bstrQuery1, &pNode)); if (pNode) { printf("Result from selectSingleNode:\n"); CHK_HR(pNode->get_nodeName(&bstrNodeName)); printf("Node, <%S>:\n", bstrNodeName); SysFreeString(bstrNodeName); CHK_HR(pNode->get_xml(&bstrNodeValue)); printf("\t%S\n\n", bstrNodeValue); SysFreeString(bstrNodeValue); SAFE_RELEASE(pNode); } else { CHK_HR(ReportParseError(pXMLDom, "Error while calling selectSingleNode.")); } // Query a node-set. bstrQuery2 = SysAllocString(L"//stock[1]/*"); CHK_ALLOC(bstrQuery2); CHK_HR(pXMLDom->selectNodes(bstrQuery2, &pNodes)); if(pNodes) { printf("Results from selectNodes:\n"); //get the length of node-set long length; CHK_HR(pNodes->get_length(&length)); for (long i = 0; i < length; i++) { CHK_HR(pNodes->get_item(i, &pNode)); CHK_HR(pNode->get_nodeName(&bstrNodeName)); /*if(0== wcscmp(bstrNodeValue, L"symbol")) { } */ printf("Node (%d), <%S>:\n", i, bstrNodeName); SysFreeString(bstrNodeName); CHK_HR(pNode->get_xml(&bstrNodeValue)); printf("\t%S\n", bstrNodeValue); SysFreeString(bstrNodeValue); SAFE_RELEASE(pNode); } } else { CHK_HR(ReportParseError(pXMLDom, "Error while calling selectNodes.")); } CleanUp: SAFE_RELEASE(pXMLDom); SAFE_RELEASE(pNodes); SAFE_RELEASE(pNode); SysFreeString(bstrQuery1); SysFreeString(bstrQuery2); SysFreeString(bstrNodeName); SysFreeString(bstrNodeValue); VariantClear(&varFileName); }