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/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2011 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
*
*****************************************************************************/
#ifndef MAPNIK_AGG_RENDERER_HPP
#define MAPNIK_AGG_RENDERER_HPP
// mapnik
#include <mapnik/config.hpp>
#include <mapnik/feature_style_processor.hpp>
#include <mapnik/font_engine_freetype.hpp>
#include <mapnik/label_collision_detector.hpp>
#include <mapnik/map.hpp>
#include <mapnik/rule.hpp> // for all symbolizers
// boost
#include <boost/utility.hpp>
#include <boost/scoped_ptr.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/optional.hpp>
// FIXME
// forward declare so that
// apps using mapnik do not
// need agg headers
namespace agg {
struct trans_affine;
}
namespace mapnik {
class marker;
struct rasterizer;
template <typename T>
class MAPNIK_DECL agg_renderer : public feature_style_processor<agg_renderer<T> >,
private boost::noncopyable
{
public:
typedef T buffer_type;
typedef agg_renderer<T> processor_impl_type;
// create with default, empty placement detector
agg_renderer(Map const& m, T & pixmap, double scale_factor=1.0, unsigned offset_x=0, unsigned offset_y=0);
// create with external placement detector, possibly non-empty
agg_renderer(Map const &m, T & pixmap, boost::shared_ptr<label_collision_detector4> detector,
double scale_factor=1.0, unsigned offset_x=0, unsigned offset_y=0);
~agg_renderer();
void start_map_processing(Map const& map);
void end_map_processing(Map const& map);
void start_layer_processing(layer const& lay, box2d<double> const& query_extent);
void end_layer_processing(layer const& lay);
void start_style_processing(feature_type_style const& st);
void end_style_processing(feature_type_style const& st);
void render_marker(pixel_position const& pos, marker const& marker, agg::trans_affine const& tr,
double opacity, composite_mode_e comp_op);
void process(point_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(line_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(line_pattern_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(polygon_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(polygon_pattern_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(raster_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(shield_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(text_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(building_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(markers_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
void process(debug_symbolizer const& sym,
feature_impl & feature,
proj_transform const& prj_trans);
inline bool process(rule::symbolizers const& /*syms*/,
mapnik::feature_impl & /*feature*/,
proj_transform const& /*prj_trans*/)
{
// agg renderer doesn't support processing of multiple symbolizers.
return false;
};
void painted(bool painted);
protected:
template <typename R>
void debug_draw_box(R& buf, box2d<double> const& extent,
double x, double y, double angle = 0.0);
void debug_draw_box(box2d<double> const& extent,
double x, double y, double angle = 0.0);
void draw_geo_extent(box2d<double> const& extent,mapnik::color const& color);
private:
buffer_type & pixmap_;
boost::shared_ptr<buffer_type> internal_buffer_;
mutable buffer_type * current_buffer_;
mutable bool style_level_compositing_;
unsigned width_;
unsigned height_;
double scale_factor_;
CoordTransform t_;
freetype_engine font_engine_;
face_manager<freetype_engine> font_manager_;
boost::shared_ptr<label_collision_detector4> detector_;
boost::scoped_ptr<rasterizer> ras_ptr;
box2d<double> query_extent_;
void setup(Map const& m);
};
}
#endif // MAPNIK_AGG_RENDERER_HPP
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