text: /*****************************************************************************
   *
   * This file is part of Mapnik (c++ mapping toolkit)
   *
   * Copyright (C) 2015 Artem Pavlenko
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   *
   *****************************************************************************/
  
  #include <mapnik/renderer_common.hpp>
  #include <mapnik/label_collision_detector.hpp>
  #include <mapnik/map.hpp>
  #include <mapnik/request.hpp>
  #include <mapnik/attribute.hpp>
  #include <mapnik/safe_cast.hpp>
  
  namespace mapnik {
  
  // copy constructor exclusively for virtual_renderer_common
  renderer_common::renderer_common(renderer_common const& other)
      : width_(other.width_),
        height_(other.height_),
        scale_factor_(other.scale_factor_),
        vars_(other.vars_),
        shared_font_library_(other.shared_font_library_),
        font_library_(other.font_library_),
        font_manager_(other.font_manager_),
        query_extent_(other.query_extent_),
        t_(other.t_),
        detector_(other.detector_)
  {}
  
  renderer_common::renderer_common(Map const& map, unsigned width, unsigned height, double scale_factor,
                                   attributes const& vars,
                                   view_transform && t,
                                   detector_ptr detector)
     : width_(width),
       height_(height),
       scale_factor_(scale_factor),
       vars_(vars),
       shared_font_library_(std::make_shared<font_library>()),
       font_library_(*shared_font_library_),
       font_manager_(font_library_,map.get_font_file_mapping(),map.get_font_memory_cache()),
       query_extent_(),
       t_(t),
       detector_(detector)
  {}
  
  renderer_common::renderer_common(Map const &m, attributes const& vars, unsigned offset_x, unsigned offset_y,
                                   unsigned width, unsigned height, double scale_factor)
     : renderer_common(m, width, height, scale_factor,
                       vars,
                       view_transform(m.width(),m.height(),m.get_current_extent(),offset_x,offset_y),
                       std::make_shared<label_collision_detector4>(
                          box2d<double>(-m.buffer_size(), -m.buffer_size(),
                                        m.width() + m.buffer_size() ,m.height() + m.buffer_size())))
  {}
  
  renderer_common::renderer_common(Map const &m, attributes const& vars, unsigned offset_x, unsigned offset_y,
                                   unsigned width, unsigned height, double scale_factor,
                                   detector_ptr detector)
     : renderer_common(m, width, height, scale_factor,
                       vars,
                       view_transform(m.width(),m.height(),m.get_current_extent(),offset_x,offset_y),
                       detector)
  {}
  
  renderer_common::renderer_common(Map const &m, request const &req, attributes const& vars, unsigned offset_x, unsigned offset_y,
                                   unsigned width, unsigned height, double scale_factor)
     : renderer_common(m, width, height, scale_factor,
                       vars,
                       view_transform(req.width(),req.height(),req.extent(),offset_x,offset_y),
                       std::make_shared<label_collision_detector4>(
                          box2d<double>(-req.buffer_size(), -req.buffer_size(),
                                        req.width() + req.buffer_size() ,req.height() + req.buffer_size())))
  {}
  
  renderer_common::~renderer_common()
  {
      // defined in .cpp to make this destructible elsewhere without
      // having to #include <mapnik/label_collision_detector.hpp>
  }
  
  }
  