/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */

/* libwpg

 * Version: MPL 2.0 / LGPLv2.1+

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * Major Contributor(s):

 * Copyright (C) 2006 Ariya Hidayat (ariya@kde.org)

 * Copyright (C) 2004 Marc Oude Kotte (marc@solcon.nl)

 * Copyright (C) 2005 Fridrich Strba (fridrich.strba@bluewin.ch)

 *

 * For minor contributions see the git repository.

 *

 * Alternatively, the contents of this file may be used under the terms

 * of the GNU Lesser General Public License Version 2.1 or later

 * (LGPLv2.1+), in which case the provisions of the LGPLv2.1+ are

 * applicable instead of those above.

 *

 * For further information visit http://libwpg.sourceforge.net

 */

/* "This product is not manufactured, approved, or supported by

 * Corel Corporation or Corel Corporation Limited."

 */

#include "WPGTextDataHandler.h"

namespace

{

static void separateTabsAndInsertText(librevenge::RVNGDrawingInterface *iface, const librevenge::RVNGString &text)

{

  if (!iface || text.empty())

    return;

  librevenge::RVNGString tmpText;

  librevenge::RVNGString::Iter i(text);

  for (i.rewind(); i.next();)

  {

    if (*(i()) == '\t')

    {

      if (!tmpText.empty())

      {

        if (iface)

          iface->insertText(tmpText);

        tmpText.clear();

      }

      if (iface)

        iface->insertTab();

    }

    else if (*(i()) == '\n')

    {

      if (!tmpText.empty())

      {

        if (iface)

          iface->insertText(tmpText);

        tmpText.clear();

      }

      if (iface)

        iface->insertLineBreak();

    }

    else

    {

      tmpText.append(i());

    }

  }

  if (iface && !tmpText.empty())

    iface->insertText(tmpText);

}

static void separateSpacesAndInsertText(librevenge::RVNGDrawingInterface *iface, const librevenge::RVNGString &text)

{

  if (!iface)

    return;

  if (text.empty())

  {

    iface->insertText(text);

    return;

  }

  librevenge::RVNGString tmpText;

  int numConsecutiveSpaces = 0;

  librevenge::RVNGString::Iter i(text);

  for (i.rewind(); i.next();)

  {

    if (*(i()) == ' ')

      numConsecutiveSpaces++;

    else

      numConsecutiveSpaces = 0;

    if (numConsecutiveSpaces > 1)

    {

      if (!tmpText.empty())

      {

        separateTabsAndInsertText(iface, tmpText);

        tmpText.clear();

      }

      if (iface)

        iface->insertSpace();

    }

    else

    {

      tmpText.append(i());

    }

  }

  separateTabsAndInsertText(iface, tmpText);

}

} // anonymous namespace

void WPGTextDataHandler::openParagraph(const librevenge::RVNGPropertyList &propList)

{

  m_painter->openParagraph(propList);

}

void WPGTextDataHandler::closeParagraph()

{

  m_painter->closeParagraph();

}

void WPGTextDataHandler::openSpan(const librevenge::RVNGPropertyList &propList)

{

  m_painter->openSpan(propList);

}

void WPGTextDataHandler::closeSpan()

{

  m_painter->closeSpan();

}

void WPGTextDataHandler::insertTab()

{

  m_painter->insertTab();

}

void WPGTextDataHandler::insertSpace()

{

  m_painter->insertSpace();

}

void WPGTextDataHandler::insertText(const librevenge::RVNGString &text)

{

  separateSpacesAndInsertText(m_painter, text);

}

void WPGTextDataHandler::insertLineBreak()

{

  m_painter->insertLineBreak();

}

void WPGTextDataHandler::openListElement(const librevenge::RVNGPropertyList &propList)

{

  m_painter->openListElement(propList);

}

void WPGTextDataHandler::closeListElement()

{

  m_painter->closeListElement();

}

/* vim:set shiftwidth=4 softtabstop=4 noexpandtab: */