68 lines
2.4 KiB
C++
68 lines
2.4 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) 2011 Artem Pavlenko
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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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// mapnik
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#include <mapnik/grid/grid_renderer.hpp>
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#include <mapnik/symbolizer_helpers.hpp>
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namespace mapnik {
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template <typename T>
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void grid_renderer<T>::process(text_symbolizer const& sym,
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mapnik::feature_impl & feature,
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proj_transform const& prj_trans)
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{
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box2d<double> query_extent;
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text_symbolizer_helper<face_manager<freetype_engine>,
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label_collision_detector4> helper(
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sym, feature, prj_trans,
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width_, height_,
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scale_factor_ * (1.0/pixmap_.get_resolution()),
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t_, font_manager_, detector_,
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query_extent);
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bool placement_found = false;
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text_renderer<T> ren(pixmap_,
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font_manager_,
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*(font_manager_.get_stroker()),
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sym.comp_op(),
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scale_factor_);
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while (helper.next()) {
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placement_found = true;
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placements_type &placements = helper.placements();
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for (unsigned int ii = 0; ii < placements.size(); ++ii)
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{
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ren.prepare_glyphs(&(placements[ii]));
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ren.render_id(feature.id(), placements[ii].center, 2);
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}
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}
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if (placement_found) pixmap_.add_feature(feature);
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}
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template void grid_renderer<grid>::process(text_symbolizer const&,
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mapnik::feature_impl &,
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proj_transform const&);
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}
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