168 lines
6.4 KiB
C++
168 lines
6.4 KiB
C++
/*****************************************************************************
|
|
*
|
|
* 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> // for MAPNIK_DECL
|
|
#include <mapnik/feature_style_processor.hpp>
|
|
#include <mapnik/font_engine_freetype.hpp> // for face_manager, etc
|
|
#include <mapnik/noncopyable.hpp> // for noncopyable
|
|
#include <mapnik/rule.hpp> // for rule, symbolizers
|
|
#include <mapnik/box2d.hpp> // for box2d
|
|
#include <mapnik/color.hpp> // for color
|
|
#include <mapnik/ctrans.hpp> // for CoordTransform
|
|
#include <mapnik/image_compositing.hpp> // for composite_mode_e
|
|
#include <mapnik/pixel_position.hpp>
|
|
#include <mapnik/request.hpp>
|
|
|
|
// boost
|
|
|
|
#include <memory>
|
|
|
|
// fwd declaration to avoid depedence 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 marker;
|
|
class proj_transform;
|
|
struct rasterizer;
|
|
}
|
|
|
|
namespace mapnik {
|
|
|
|
template <typename T>
|
|
class MAPNIK_DECL agg_renderer : public feature_style_processor<agg_renderer<T> >,
|
|
private mapnik::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, std::shared_ptr<label_collision_detector4> 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, T & 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(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);
|
|
inline eAttributeCollectionPolicy attribute_collection_policy() const
|
|
{
|
|
return DEFAULT;
|
|
}
|
|
|
|
inline double scale_factor() const
|
|
{
|
|
return scale_factor_;
|
|
}
|
|
|
|
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_;
|
|
unsigned width_;
|
|
unsigned height_;
|
|
double scale_factor_;
|
|
CoordTransform t_;
|
|
freetype_engine font_engine_;
|
|
face_manager<freetype_engine> font_manager_;
|
|
std::shared_ptr<label_collision_detector4> detector_;
|
|
const std::unique_ptr<rasterizer> ras_ptr;
|
|
box2d<double> query_extent_;
|
|
gamma_method_e gamma_method_;
|
|
double gamma_;
|
|
void setup(Map const& m);
|
|
};
|
|
}
|
|
|
|
#endif // MAPNIK_AGG_RENDERER_HPP
|