Generate XML from a struct

[pran]

My application maintains a struct like this (with more nesting)

typedef struct
{
    double  length;             
    double  space;              
    double  tOffset;            
    double  sOffset;            
    QString rule;               
}ODLD;
 
typedef struct
{
    QString name;               
    double  width;              
    ODLD odLD;
}ODRMT;
 
typedef struct
{
    double  sOffset;            
    QString type;               
    QString weight;             
    QString color;              
    double  width;              
    QString change;             
    QList<ODRMT*> odRMT;
}ODRMR;

typedef struct
{
    double  length;             
    double  space;              
    double  tOffset;            
    double  sOffset;            
    QString rule;               
}ODLD;

typedef struct
{
    QString name;               
    double  width;              
    ODLD odLD;
}ODRMT;

typedef struct
{
    double  sOffset;            
    QString type;               
    QString weight;             
    QString color;              
    double  width;              
    QString change;             
    QList<ODRMT*> odRMT;
}ODRMR;

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Now I want to write this data into an XML file. Goolge-ing for this did not help me much with samples/examples. On the lookout for a sample code from where I can start of and go on to build the complete xml file.

[ChrisW67]

QXmlStreamWriter

[thomas@itest]

hi !

i'm working on quite the same things ...
i don't understand well how QXmlStreamWriter works, so, i'm using DOM elements.

what do you think about something like this :

class OdRmtXmlNode
{
  QDomElement _element;
  QDomElement _odLdElement;
 
public :
  OdRmtXmlNode(QDomElement parent,ODRMT *odrmt)
  {
    _element = parent.ownerDocument().createElement("ODRMT");
    parent.appendChild(_element);
    _element.setAttribute("name",odrmt->name);
    _element.setAttribute("width",odrmt->width);
 
    _odLdElement = parent.ownerDocument().createElement("ODLD");
    _element.appendChild(_odLdElement);
    _odLdElement.setAttribute("length",odrmt->odLD.length);
    _odLdElement.setAttribute("space",odrmt->odLD.space);
    ... 
  }
};
 
 
class OdRmrXmlDocument
{
  QDomDocument _document;
  QDomElement _element;
  QList<OdRmtXmlNode *> _rmtNodes;
 
public :
  OdRmrXmlDocument(QDomDocument doc, const ODRMR &odrmr) :
    _document(doc)
  {
    _element = doc.createElement("OdRMT");
    doc.appendChild(_element);
 
    _element.setAttribute("sOffset",odrmr.sOffset);
    ...
 
    foreach(ODRMT *odrmt, odrmr.odRMT) _rmtNodes<<new OdRmtNode(_element, odrmt);
  }
 
  ~OdRmrXmlDocument() {qDeleteAll(_rmtNodes.begin(), _rmtNodes.end());}
 
  QString toString(int indent = -1) const{return _document.toString(indent);}
};

class OdRmtXmlNode
{
  QDomElement _element;
  QDomElement _odLdElement;
  
public :
  OdRmtXmlNode(QDomElement parent,ODRMT *odrmt)
  {
    _element = parent.ownerDocument().createElement("ODRMT");
    parent.appendChild(_element);
    _element.setAttribute("name",odrmt->name);
    _element.setAttribute("width",odrmt->width);
    
    _odLdElement = parent.ownerDocument().createElement("ODLD");
    _element.appendChild(_odLdElement);
    _odLdElement.setAttribute("length",odrmt->odLD.length);
    _odLdElement.setAttribute("space",odrmt->odLD.space);
    ... 
  }
};


class OdRmrXmlDocument
{
  QDomDocument _document;
  QDomElement _element;
  QList<OdRmtXmlNode *> _rmtNodes;

public :
  OdRmrXmlDocument(QDomDocument doc, const ODRMR &odrmr) :
    _document(doc)
  {
    _element = doc.createElement("OdRMT");
    doc.appendChild(_element);
    
    _element.setAttribute("sOffset",odrmr.sOffset);
    ...
    
    foreach(ODRMT *odrmt, odrmr.odRMT) _rmtNodes<<new OdRmtNode(_element, odrmt);
  }
  
  ~OdRmrXmlDocument() {qDeleteAll(_rmtNodes.begin(), _rmtNodes.end());}
  
  QString toString(int indent = -1) const{return _document.toString(indent);}
};

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