Drawable.hpp

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// This file is part of GranOO, a workbench for DEM simulation.
//
// Author(s)    : - Damien Andre       IRCER/UNILIM, Limoges France
//                  <damien.andre@unilim.fr>
//                - Jean-luc Charles   Arts et Metiers ParisTech, CNRS, I2M, Bordeaux France
//                  <jean-luc.charles@ensam.eu>
//                - Jeremie Girardot   Arts et Metiers ParisTech, CNRS, I2M, Bordeaux France
//                  <jeremie.girardot@ensam.eu>
//                - Cedric Hubert      LAMIH/UPHF, Valenciennes France
//                  <cedric.hubert@uphf.fr>
//                - Ivan Iordanoff     Arts et Metiers ParisTech, CNRS, I2M, Bordeaux France
//                  <ivan.iordanoff@ensam.eu>
//
// Copyright (C) 2008-2019 D. Andre, JL. Charles, J. Girardot, C. Hubert, I. Iordanoff
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
 
 
#ifndef _libCore_Drawable_hpp_
#define _libCore_Drawable_hpp_
 
#include <iosfwd>
#include <map>
 
#ifndef SERVER
  #if defined OSX
    #include <OpenGL/gl.h>
  #else
    #include <GL/gl.h>
  #endif
#endif
 
#include "GranOO3/Core/Color.hpp"
 
namespace GranOO3
{
  namespace Core
  {
    class Drawable;
 
    std::ostream& operator<< (std::ostream &, const Drawable &);
 
    class Drawable
    {
 
    public:
      static Drawable& get_drawable_item_by_glkey(int);
      // Methodes used for OpenGL drawing:
      static void set_draw_precision(unsigned int p);
      static void increase_draw_precision();
      static void decrease_draw_precision();
      static unsigned int get_draw_precision();
 
    public:
      Drawable();
      virtual ~Drawable();
 
      virtual void draw();
      virtual void draw_edge();
      virtual void init_default_color();
      virtual std::ostream& get_info(std::ostream &os) const {return os;}
      virtual const Color& default_color() const;
 
      Color& get_color();
      const Color& get_color() const;
      virtual void set_color(const Color&);
      virtual void set_alpha(float alpha);
      
      void apply_color() const;
      void apply_edge_color() const;
      void apply_default_color();
      void apply_selected_color();
 
      void set_line_width(float);
      float get_line_width() const;
      float& get_line_width();
      void apply_line_width() const;
 
      bool is_visible() const;
      void set_visible(bool);
 
      void paint();
      void paint_edge();
      unsigned int get_item_glkey() const;
 
    private:
      static int _drawable_item_counter;
      static std::map<int, Drawable*> _map;
      static unsigned int _draw_precision;
      static unsigned int _draw_precision_max;
      static unsigned int _draw_precision_min;
 
    private:
      const unsigned int _item_glkey;
      Color _color;
      Color _edge_color;
      float _line_width;
      bool  _visible;
 
    };
 
    inline void
    Drawable::draw() {
    }
 
    inline void
    Drawable::draw_edge() {
    }
 
    inline void
    Drawable::init_default_color() {
    }
 
    inline const Color&
    Drawable::default_color() const {
      static const Color* c = new Color(1., 0., 0.);
      return *c;
    }
 
  }
}
 
#endif