/*

 * Copyright (C) 2008 by Sebastian Pipping.

 * Copyright (C) 2008 Dimitri van Heesch.

 *

 * Permission to use, copy, modify, and distribute this software and its

 * documentation under the terms of the GNU General Public License is hereby 

 * granted. No representations are made about the suitability of this software 

 * for any purpose. It is provided "as is" without express or implied warranty.

 * See the GNU General Public License for more details.

 *

 * Documents produced by Doxygen are derivative works derived from the

 * input used in their production; they are not affected by this license.

 *

 * Sebastian Pipping <sebastian@pipping.org>

 */

#include "qhpxmlwriter.h"

#include "util.h"

#include <qfile.h>

QhpXmlWriter::QhpXmlWriter() 

    : m_out(&m_backend), m_indentLevel(0), 

      m_curLineIndented(false), m_compress(false)

{

}

QhpXmlWriter::~QhpXmlWriter()

{

}

void QhpXmlWriter::setIndentLevel(int level)

{

  m_indentLevel = level;

}

void QhpXmlWriter::setCompressionEnabled(bool enabled)

{

  m_compress = enabled;

}

void QhpXmlWriter::insert(QhpXmlWriter const & source)

{

  m_out << source.m_backend.data();

}

void QhpXmlWriter::dumpTo(QFile & file)

{

  file.writeBlock(m_backend.data(), m_backend.length());

}

void QhpXmlWriter::open(char const * elementName,

    char const * const * attributes)

{

  indent();

  openPure(elementName, attributes);

  newLine();

  m_indentLevel++;

}

void QhpXmlWriter::openClose(char const * elementName,

    char const * const * attributes)

{

  indent();

  openClosePure(elementName, attributes);

  newLine();

}

void QhpXmlWriter::openCloseContent(char const * elementName,

    char const * content)

{

  indent();

  openPure(elementName);

  m_out << convertToXML(content);

  closePure(elementName);

  newLine();

}

void QhpXmlWriter::close(char const * elementName)

{

  m_indentLevel--;

  indent();

  closePure(elementName);

  newLine();

}

void QhpXmlWriter::indent()

{

  if (m_curLineIndented)

  {

    return;

  }

  for (int i = 0; i < m_indentLevel; i++) 

  {

    m_out << "  ";

  }

  m_curLineIndented = true;

}

void QhpXmlWriter::newLine()

{

  if (!m_compress)

  {

    m_out << "\n";

    m_curLineIndented = false;

  }

}

void QhpXmlWriter::openPureHelper(char const * elementName,

                                  char const * const * attributes, bool close)

{

  m_out << "<" << elementName;

  if (attributes)

  {

    for (char const * const * walker = attributes;

        walker[0]; walker += 2)

    {

      char const * const key = walker[0];

      char const * const value = walker[1];

      if (!value)

      {

        continue;  

      }

      m_out << " " << key << "=\"" << convertToXML(value) << "\"";

    }

  }

  if (close)

  {

    m_out << " /";

  }

  m_out << ">";

}

void QhpXmlWriter::openPure(char const * elementName,

                            char const * const * attributes)

{

  openPureHelper(elementName, attributes, false);

}

void QhpXmlWriter::openClosePure(char const * elementName,

                                 char const * const * attributes)

{

  openPureHelper(elementName, attributes, true);

}

void QhpXmlWriter::closePure(char const * elementName)

{

  m_out << "</" << elementName << ">";

}