OAG Library (OpenGL) Part 2.3 - Drawing 2D Textures Using the Mouse and Programatically

#include "XmlWriterDocument.h"
#include "XmlNode.h"
#include "XmlAttribute.h"

#if defined(LIBXML_WRITER_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)
#define MY_ENCODING "ISO-8859-1"
#endif

CXmlWriterDocument::CXmlWriterDocument(void)
{
}

CXmlWriterDocument::~CXmlWriterDocument(void)
{
}

//Operations

int CXmlWriterDocument::WriteNode(CXmlNode* pNode, xmlTextWriterPtr writer)
{
	std::string text = pNode->GetNodeName();
	int rc = xmlTextWriterStartElement(writer, BAD_CAST (xmlChar*)text.c_str());
	if ( rc < 0)
		return rc;

	for( vector<int>::size_type i = 0; i < pNode->m_ListAtts.size(); ++i )
	{	
		CXmlAttribute* pAttr = pNode->m_ListAtts[i];

		std::string name =  pAttr->GetName();
		std::string value = pAttr->GetValue();


	   /* Add an attribute with name "version" and value "1.0" to ORDER. */
		rc = xmlTextWriterWriteAttribute(writer, BAD_CAST (xmlChar*)name.c_str(),
										 BAD_CAST (xmlChar*)value.c_str() );
		if (rc < 0)
		{
			return rc;
			break;
		}

	}

	for( vector<int>::size_type i = 0; i < pNode->m_ListChilds.size(); ++i )
	{	
		rc =   this->WriteNode( pNode->m_ListChilds[i], writer );
		if ( rc < 0 )
		{
			return rc;
			break;
		}
	}

	rc = xmlTextWriterEndElement(writer);
	if ( rc < 0 )
		return rc; 

	return 0;
}

void CXmlWriterDocument::WriteFile(std::string strFileName, CXmlNode* pRoot)
{
#if defined(LIBXML_WRITER_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)

    int rc;
    xmlTextWriterPtr writer;
    xmlChar *tmp;
    xmlDocPtr doc;

	if ( pRoot == NULL )
		return;

    /* Create a new XmlWriter for DOM, with no compression. */
    writer = xmlNewTextWriterDoc(&doc, 0);


    /* Start the document with the xml default for the version,
     * encoding ISO 8859-1 and the default for the standalone
     * declaration. */
    rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterStartDocument\n");
        return;
    }

	this->WriteNode(pRoot, writer);

    xmlFreeTextWriter(writer);

	xmlSaveFileEnc(strFileName.c_str(), doc, MY_ENCODING);

    xmlFreeDoc(doc);

    /*
     * Cleanup function for the XML library.
     */
    xmlCleanupParser();
    /*
     * this is to debug memory for regression tests
     */
    xmlMemoryDump();

#endif

}