108 lines
4.4 KiB
C++
108 lines
4.4 KiB
C++
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/*****************************************************************************
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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) 2014 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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#if defined(HAVE_CAIRO)
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// mapnik
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#include <mapnik/cairo/cairo_renderer.hpp>
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#include <mapnik/text/symbolizer_helpers.hpp>
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#include <mapnik/pixel_position.hpp>
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namespace mapnik
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{
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class feature_impl;
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class proj_transform;
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template <typename T>
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void cairo_renderer<T>::process(shield_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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agg::trans_affine tr;
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auto transform = get_optional<transform_type>(sym, keys::geometry_transform);
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if (transform) evaluate_transform(tr, feature, common_.vars_, *transform, common_.scale_factor_);
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text_symbolizer_helper helper(
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sym, feature, common_.vars_, prj_trans,
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common_.width_, common_.height_,
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common_.scale_factor_,
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common_.t_, common_.font_manager_, *common_.detector_,
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common_.query_extent_, tr);
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cairo_save_restore guard(context_);
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composite_mode_e comp_op = get<composite_mode_e>(sym, keys::comp_op, feature, common_.vars_, src_over);
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composite_mode_e halo_comp_op = get<composite_mode_e>(sym, keys::halo_comp_op, feature, common_.vars_, src_over);
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double opacity = get<double>(sym,keys::opacity,feature, common_.vars_, 1.0);
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placements_list const &placements = helper.get();
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for (glyph_positions_ptr glyphs : placements)
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{
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if (glyphs->marker()) {
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pixel_position pos = glyphs->marker_pos();
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render_marker(pos,
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*(glyphs->marker()->marker),
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glyphs->marker()->transform,
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opacity);
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}
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context_.add_text(glyphs, face_manager_, common_.font_manager_, comp_op, halo_comp_op, common_.scale_factor_);
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}
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}
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template void cairo_renderer<cairo_ptr>::process(shield_symbolizer const&,
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mapnik::feature_impl &,
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proj_transform const&);
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template <typename T>
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void cairo_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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agg::trans_affine tr;
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auto transform = get_optional<transform_type>(sym, keys::geometry_transform);
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if (transform) evaluate_transform(tr, feature, common_.vars_, *transform, common_.scale_factor_);
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text_symbolizer_helper helper(
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sym, feature, common_.vars_, prj_trans,
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common_.width_, common_.height_,
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common_.scale_factor_,
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common_.t_, common_.font_manager_, *common_.detector_,
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common_.query_extent_, tr);
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cairo_save_restore guard(context_);
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composite_mode_e comp_op = get<composite_mode_e>(sym, keys::comp_op, feature, common_.vars_, src_over);
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composite_mode_e halo_comp_op = get<composite_mode_e>(sym, keys::halo_comp_op, feature, common_.vars_, src_over);
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placements_list const& placements = helper.get();
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for (glyph_positions_ptr glyphs : placements)
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{
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context_.add_text(glyphs, face_manager_, common_.font_manager_, comp_op, halo_comp_op, common_.scale_factor_);
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}
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}
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template void cairo_renderer<cairo_ptr>::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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#endif // HAVE_CAIRO
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