/usr/include/mapnik/agg_renderer.hpp is in libmapnik-dev 3.0.12+ds-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* 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
*
*****************************************************************************/
#ifndef MAPNIK_AGG_RENDERER_HPP
#define MAPNIK_AGG_RENDERER_HPP
// mapnik
#include <mapnik/config.hpp> // for MAPNIK_DECL
#include <mapnik/feature_style_processor.hpp>
#include <mapnik/util/noncopyable.hpp> // for noncopyable
#include <mapnik/rule.hpp> // for rule, symbolizers
#include <mapnik/box2d.hpp> // for box2d
#include <mapnik/view_transform.hpp> // for view_transform
#include <mapnik/image_compositing.hpp> // for composite_mode_e
#include <mapnik/pixel_position.hpp>
#include <mapnik/request.hpp>
#include <mapnik/symbolizer_enumerations.hpp>
#include <mapnik/renderer_common.hpp>
// stl
#include <memory>
// fwd declaration to avoid dependence on agg headers
namespace agg { struct trans_affine; }
// fwd declarations to speed up compile
namespace mapnik {
class Map;
class feature_impl;
class feature_type_style;
class label_collision_detector4;
class layer;
class color;
struct marker;
class proj_transform;
struct rasterizer;
struct rgba8_t;
template<typename T> class image;
}
namespace mapnik {
template <typename T0, typename T1=label_collision_detector4>
class MAPNIK_DECL agg_renderer : public feature_style_processor<agg_renderer<T0> >,
private util::noncopyable
{
public:
using buffer_type = T0;
using processor_impl_type = agg_renderer<T0>;
using detector_type = T1;
// create with default, empty placement detector
agg_renderer(Map const& m, buffer_type & 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, buffer_type & pixmap, std::shared_ptr<detector_type> detector,
double scale_factor=1.0, unsigned offset_x=0, unsigned offset_y=0);
// pass in mapnik::request object to provide the mutable things per render
agg_renderer(Map const& m, request const& req, attributes const& vars, buffer_type & pixmap, 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(group_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);
void process(dot_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans);
inline bool process(rule::symbolizers const&,
mapnik::feature_impl&,
proj_transform const& )
{
// agg renderer doesn't support processing of multiple symbolizers.
return false;
}
void painted(bool painted);
bool painted();
inline eAttributeCollectionPolicy attribute_collection_policy() const
{
return DEFAULT;
}
inline double scale_factor() const
{
return common_.scale_factor_;
}
inline attributes const& variables() const
{
return common_.vars_;
}
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_;
std::shared_ptr<buffer_type> internal_buffer_;
mutable buffer_type * current_buffer_;
mutable bool style_level_compositing_;
const std::unique_ptr<rasterizer> ras_ptr;
gamma_method_enum gamma_method_;
double gamma_;
renderer_common common_;
void setup(Map const& m);
};
extern template class MAPNIK_DECL agg_renderer<image<rgba8_t>>;
} // namespace mapnik
#endif // MAPNIK_AGG_RENDERER_HPP
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