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

/* libwpd

 * 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) 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://libwpd.sourceforge.net

 */

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

 * Corel Corporation or Corel Corporation Limited."

 */

#include <math.h>

#include "WP3DefinitionGroup.h"

#include "WP3FileStructure.h"

#include "WPXFileStructure.h"

#include "libwpd_internal.h"

#include "libwpd_math.h"

#include "WP3Listener.h"

WP3DefinitionGroup::WP3DefinitionGroup(librevenge::RVNGInputStream *input, WPXEncryption *encryption) :

  WP3VariableLengthGroup(),

  m_colType(0),

  m_numColumns(0),

  m_isFixedWidth(),

  m_columnWidth()

{

  _read(input, encryption);

}

WP3DefinitionGroup::~WP3DefinitionGroup()

{

}

void WP3DefinitionGroup::_readContents(librevenge::RVNGInputStream *input, WPXEncryption *encryption)

{

  // this group can contain different kinds of data, thus we need to read

  // the contents accordingly

  switch (getSubGroup())

  {

  case WP3_DEFINITION_GROUP_SET_COLUMNS:

  {

    unsigned char tmpColType = readU8(input, encryption);

    if (tmpColType)

    {

      unsigned char tmpNumColumns = readU8(input, encryption);

      if (tmpNumColumns)

        input->seek(((2*tmpNumColumns) - 1), librevenge::RVNG_SEEK_CUR);

    }

    m_colType = readU8(input, encryption);

    if (!m_colType)

    {

      m_numColumns = 1;

      m_isFixedWidth.clear();

      m_columnWidth.clear();

    }

    else

    {

      m_numColumns = readU8(input, encryption);

      if (m_numColumns > 1)

      {

        for (int i=0; i<((2*m_numColumns)-1); i++)

        {

          if (i%2)

          {

            unsigned tmpSpaceBetweenColumns = readU32(input, encryption, true);

            m_isFixedWidth.push_back(true);

            m_columnWidth.push_back((double)((double)fixedPointToWPUs(tmpSpaceBetweenColumns)/(double)WPX_NUM_WPUS_PER_INCH));

          }

          else

          {

            unsigned short tmpSizeOfColumn = readU16(input, encryption, true);

            m_isFixedWidth.push_back(false);

            m_columnWidth.push_back((double)((double)tmpSizeOfColumn/(double)0x10000));

          }

        }

      }

    }

  }

  break;

  default: /* something else we don't support, since it isn't in the docs */

    break;

  }

}

void WP3DefinitionGroup::parse(WP3Listener *listener)

{

  WPD_DEBUG_MSG(("WordPerfect: handling a Definition group\n"));

  switch (getSubGroup())

  {

  case WP3_DEFINITION_GROUP_SET_COLUMNS:

    // number of columns = {0,1} means columns off

    if ((m_numColumns <= 1))

    {

      listener->columnChange(NEWSPAPER, 1, m_columnWidth, m_isFixedWidth); // the value "1" is bugus, the false bool gives you all the information you need here

    }

    else

    {

      switch (m_colType)

      {

      case WP3_COLUMN_TYPE_NEWSPAPER:

        listener->columnChange(NEWSPAPER, m_numColumns, m_columnWidth, m_isFixedWidth);

        break;

      case WP3_COLUMN_TYPE_PARALLEL:

        listener->columnChange(PARALLEL, m_numColumns, m_columnWidth, m_isFixedWidth);

        break;

      case WP3_COLUMN_TYPE_EXTENDED:

        listener->columnChange(PARALLEL_PROTECT, m_numColumns, m_columnWidth, m_isFixedWidth);

        break;

      default: // something else we don't support, since it isn't in the docs

        break;

      }

    }

    break;

  default: // something else we don't support, since it isn't in the docs

    break;

  }

}

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