/*

  KLayout Layout Viewer
  Copyright (C) 2006-2017 Matthias Koefferlein

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

*/




#ifndef HDR_dbDXFWriter
#define HDR_dbDXFWriter

#include "dbWriter.h"
#include "dbDXF.h"
#include "dbSaveLayoutOptions.h"
#include "tlProgress.h"

namespace tl
{
  class OutputStream;
}

namespace db
{

class Layout;
class SaveLayoutOptions;

/**
 *  @brief Structure that holds the DXF specific options for the Writer
 */
class DB_PUBLIC DXFWriterOptions
  : public FormatSpecificWriterOptions
{
public:
  /**
   *  @brief The constructor
   */
  DXFWriterOptions ()
    : polygon_mode (0)
  {
    //  .. nothing yet ..
  }

  /**
   *  @brief Polygon mode
   *
   *  0: create POLYLINE
   *  1: create LWPOLYLINE
   *  2: decompose into SOLID
   *  3: create HATCH
   */
  int polygon_mode;

  /** 
   *  @brief Implementation of FormatSpecificWriterOptions
   */
  virtual FormatSpecificWriterOptions *clone () const
  {
    return new DXFWriterOptions (*this);
  }

  /**
   *  @brief Implementation of FormatSpecificWriterOptions
   */
  virtual const std::string &format_name () const
  {
    static std::string n ("DXF");
    return n;
  }
};

/**
 *  @brief A DXF writer abstraction
 */
class DB_PUBLIC DXFWriter
  : public db::WriterBase
{
public:
  /**
   *  @brief Instantiate the writer
   */
  DXFWriter ();

  /**
   *  @brief Write the layout object
   */
  void write (db::Layout &layout, tl::OutputStream &stream, const db::SaveLayoutOptions &options);

private:
  struct endl_tag { };

  tl::OutputStream *mp_stream;
  DXFWriterOptions m_options;
  tl::AbsoluteProgress m_progress;
  endl_tag endl;
  db::LayerProperties m_layer;
  
  DXFWriter &operator<<(const char *s);
  DXFWriter &operator<<(const std::string &s);
  DXFWriter &operator<<(endl_tag); 

  template<class X> DXFWriter &operator<<(const X &x) 
  {
    return (*this << tl::to_string(x));
  }

  void write_texts (const db::Layout &layout, const db::Cell &cell, unsigned int layer, double tl_scale);
  void write_polygons (const db::Layout &layout, const db::Cell &cell, unsigned int layer, double tl_scale);
  void write_polygon (const db::Polygon &polygon, double tl_scale);
  void write_boxes (const db::Layout &layout, const db::Cell &cell, unsigned int layer, double tl_scale);
  void write_paths (const db::Layout &layout, const db::Cell &cell, unsigned int layer, double tl_scale);
  void write_edges (const db::Layout &layout, const db::Cell &cell, unsigned int layer, double tl_scale);
  void write (const db::Layout &layout, const db::Cell &cref, const std::set <db::cell_index_type> &cell_set, const std::vector <std::pair <unsigned int, db::LayerProperties> > &layers, double sf);

  void emit_layer(const db::LayerProperties &lp);
};

} // namespace db

#endif