//
//  Copyright (C) : Please refer to the COPYRIGHT file distributed 
//   with this source distribution. 
//
//  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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
///////////////////////////////////////////////////////////////////////////////

# include "PSStrokeRenderer.h"
# include "Canvas.h"

PSStrokeRenderer::PSStrokeRenderer(const char* iFileName)
:StrokeRenderer(){
  if(!iFileName)
    iFileName = "freestyle.ps";
  // open the stream:
  _ofstream.open(iFileName, ios::out);
  if(!_ofstream.is_open()){
    cerr << "couldn't open the output file " << iFileName << endl;
  }
  _ofstream << "%!PS-Adobe-2.0 EPSF-2.0" << endl;
  _ofstream << "%%Creator: Freestyle (http://artis.imag.fr/Software/Freestyle)" << endl;
  _ofstream << "%%BoundingBox: " << 0 << " "<< 0 << " " << Canvas::getInstance()->width() << " " << Canvas::getInstance()->height() << endl;
  _ofstream << "%%EndComments" << endl;
}

PSStrokeRenderer::~PSStrokeRenderer(){
  Close();
}

void PSStrokeRenderer::RenderStrokeRep(StrokeRep *iStrokeRep) const{
  RenderStrokeRepBasic(iStrokeRep);
}

void PSStrokeRenderer::RenderStrokeRepBasic(StrokeRep *iStrokeRep) const{
  vector<Strip*>& strips = iStrokeRep->getStrips();
  Strip::vertex_container::iterator v[3];
  StrokeVertexRep *svRep[3];
  Vec3r color[3];
  for(vector<Strip*>::iterator s=strips.begin(), send=strips.end();
  s!=send;
  ++s){
    Strip::vertex_container& vertices = (*s)->vertices();
    v[0] = vertices.begin();
    v[1] = v[0];++(v[1]);
    v[2] = v[1]; ++(v[2]);

    while(v[2]!=vertices.end()){
      svRep[0] = *(v[0]);
      svRep[1] = *(v[1]);
      svRep[2] = *(v[2]);
      
      color[0] = svRep[0]->color();
      //color[1] = svRep[1]->color();
      //color[2] = svRep[2]->color();
      
      _ofstream << "newpath" << endl;
      _ofstream << (color[0])[0] << " " << (color[0])[1] << " " << (color[0])[2] << " setrgbcolor" <<endl;
      _ofstream << svRep[0]->point2d()[0] << " " <<svRep[0]->point2d()[1] << " moveto" << endl;
      _ofstream << svRep[1]->point2d()[0] << " " <<svRep[1]->point2d()[1] << " lineto" << endl;
      _ofstream << svRep[2]->point2d()[0] << " " <<svRep[2]->point2d()[1] << " lineto" << endl;
      _ofstream << "closepath" << endl;
      _ofstream << "fill" << endl;

      ++v[0];
      ++v[1];
      ++v[2];
    }  
  }
}

void PSStrokeRenderer::Close(){
  if(_ofstream.is_open())
    _ofstream.close();
}