129 lines
4.5 KiB
C++
129 lines
4.5 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2008 Tom Hughes
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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//$Id$
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#if defined(HAVE_CAIRO)
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#ifndef CAIRO_RENDERER_HPP
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#define CAIRO_RENDERER_HPP
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// mapnik
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#include <mapnik/config.hpp>
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#include <mapnik/feature_style_processor.hpp>
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#include <mapnik/font_engine_freetype.hpp>
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#include <mapnik/label_collision_detector.hpp>
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#include <mapnik/placement_finder.hpp>
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#include <mapnik/map.hpp>
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// cairo
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#include <cairomm/context.h>
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#include <cairomm/surface.h>
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// boost
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#include <boost/utility.hpp>
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#include <boost/scoped_ptr.hpp>
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namespace mapnik {
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class cairo_face;
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typedef boost::shared_ptr<cairo_face> cairo_face_ptr;
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class cairo_face_manager : private boost::noncopyable
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{
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public:
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cairo_face_manager(boost::shared_ptr<freetype_engine> engine,
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face_manager<freetype_engine> & manager);
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cairo_face_ptr get_face(face_ptr face);
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private:
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typedef std::map<face_ptr,cairo_face_ptr> cairo_face_cache;
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boost::shared_ptr<freetype_engine> font_engine_;
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face_manager<freetype_engine> & font_manager_;
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cairo_face_cache cache_;
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};
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class MAPNIK_DECL cairo_renderer_base : private boost::noncopyable
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{
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protected:
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cairo_renderer_base(Map const& m, Cairo::RefPtr<Cairo::Context> const& context, unsigned offset_x=0, unsigned offset_y=0);
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public:
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~cairo_renderer_base();
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void start_map_processing(Map const& map);
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void start_layer_processing(Layer const& lay);
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void end_layer_processing(Layer const& lay);
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void process(point_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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void process(line_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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void process(line_pattern_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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void process(polygon_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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void process(polygon_pattern_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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void process(raster_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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void process(shield_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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void process(text_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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void process(building_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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void process(markers_symbolizer const& sym,
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Feature const& feature,
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proj_transform const& prj_trans);
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protected:
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Map const& m_;
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Cairo::RefPtr<Cairo::Context> context_;
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CoordTransform t_;
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boost::shared_ptr<freetype_engine> font_engine_;
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face_manager<freetype_engine> font_manager_;
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cairo_face_manager face_manager_;
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label_collision_detector4 detector_;
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};
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template <typename T>
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class MAPNIK_DECL cairo_renderer : public feature_style_processor<cairo_renderer<T> >,
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public cairo_renderer_base
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{
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public:
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cairo_renderer(Map const& m, Cairo::RefPtr<T> const& surface, unsigned offset_x=0, unsigned offset_y=0);
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void end_map_processing(Map const& map);
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};
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}
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#endif
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#endif //CAIRO_RENDERER_HPP
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