mapnik/src/agg/process_shield_symbolizer.cpp

77 lines
3.1 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
*
*****************************************************************************/
// mapnik
#include <mapnik/feature.hpp>
#include <mapnik/agg_renderer.hpp>
#include <mapnik/graphics.hpp>
#include <mapnik/agg_rasterizer.hpp>
#include <mapnik/text/symbolizer_helpers.hpp>
#include <mapnik/pixel_position.hpp>
#include <mapnik/text/renderer.hpp>
namespace mapnik {
template <typename T0, typename T1>
void agg_renderer<T0,T1>::process(shield_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
box2d<double> clip_box = clipping_extent(common_);
text_symbolizer_helper helper(
sym, feature, common_.vars_, prj_trans,
common_.width_, common_.height_,
common_.scale_factor_,
common_.t_, common_.font_manager_, *common_.detector_,
clip_box);
halo_rasterizer_enum halo_rasterizer = get<halo_rasterizer_enum>(sym, keys::halo_rasterizer, feature, common_.vars_, HALO_RASTERIZER_FULL);
composite_mode_e comp_op = get<composite_mode_e>(sym, keys::comp_op, feature, common_.vars_, src_over);
composite_mode_e halo_comp_op = get<composite_mode_e>(sym, keys::halo_comp_op, feature, common_.vars_, src_over);
agg_text_renderer<T0> ren(*current_buffer_,
halo_rasterizer,
comp_op,
halo_comp_op,
common_.scale_factor_,
common_.font_manager_.get_stroker());
double opacity = get<double>(sym,keys::opacity, feature, common_.vars_, 1.0);
placements_list const& placements = helper.get();
for (glyph_positions_ptr glyphs : placements)
{
if (glyphs->marker())
render_marker(glyphs->marker_pos(),
*(glyphs->marker()->marker),
glyphs->marker()->transform,
opacity, comp_op);
ren.render(*glyphs);
}
}
template void agg_renderer<image_32>::process(shield_symbolizer const&,
mapnik::feature_impl &,
proj_transform const&);
}