BasicDescription.cxx

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/***************************************************************************************
*   Programmer: Gary E. Christensen
*   Date: 6/24/2010
*   Name: BasicDescription
*   Purpose: This class holds descriptive information about namespaces,
*      algorithms, coordinate systems, images, object maps, landmark files, 
*      and contour files from disk.
*      Objects of this class are filled with information by parsing a resource description list.
*      All non-required tags and their values are stored in the attribute list.
*   Optional XML Tags:
*      attributes - contains user defined XML tags and values
******************************************************************************************/

#include "BasicDescription.h"

TiXmlElement * BasicDescription::CreateDOM(const std::string & tag){

        // descrip is the main element to hold the DOM tree for this object
  TiXmlElement * descrip = new TiXmlElement( tag.c_str() );

  if (descrip){
    // Only save description id if there is one
    if (!m_id.empty()){
      descrip->SetAttribute("id", m_id.c_str());
    }
    // Only save namespace if there is one
    if (!m_ns.empty()){
      descrip->SetAttribute("ns", m_ns.c_str());
    }
  } else {
    return NULL; // Failed to allocate memory
  }

        // Add non-required attributes to descrip
        // Cycle through all the attributes and store them in DOM
        AttributeList::iterator iter;
        for (iter=m_attribute.begin(); iter != m_attribute.end(); iter++) {
                const std::string & key= iter->first;
                const std::string & value= iter->second;

                TiXmlElement * p_attribute = new TiXmlElement(key.c_str()); 
    TiXmlText * p_text = new TiXmlText(value.c_str());

    if (p_attribute && p_text){
                  p_attribute->LinkEndChild( p_text );  
                  descrip->LinkEndChild( p_attribute );
    } else {
      return NULL; // Failed to allocate memory
    }
        }

        return descrip;
}


bool BasicDescription::FillUsingDom(TiXmlElement * descrip){
  // Return false if called with NULL pointer
  if (!descrip){
    return false;
  }

  //set id if there is one
  std::string buf;
  int readOkay;
  readOkay = descrip->QueryStringAttribute("id", &buf);
  if (readOkay == TIXML_SUCCESS){
    SetID(buf);
  }

  // set namespace if there is one
  readOkay = descrip->QueryStringAttribute("ns", &buf);
  if (readOkay == TIXML_SUCCESS){
    SetNameSpace(buf);
  }

  // pElem used to move through children of descrip 
  TiXmlElement* pElem; 
        TiXmlHandle hDescrip(descrip);

        //Go to first attribute child of description and set attributes
        pElem=hDescrip.FirstChildElement().Element();
        for( pElem; pElem; pElem=pElem->NextSiblingElement()) {
                const char *pKey=pElem->Value();
                const char *pText=pElem->GetText();
                if (pKey && pText) {
                        AddAttribute(pKey,pText);
                }
        }

        return true;
}