141 lines
3.7 KiB
C++
141 lines
3.7 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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#ifndef MAPNIK_MARKER_HPP
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#define MAPNIK_MARKER_HPP
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// mapnik
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#include <mapnik/image_data.hpp>
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#include <mapnik/svg/svg_storage.hpp>
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#include <mapnik/svg/svg_path_attributes.hpp>
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#include <mapnik/svg/svg_path_adapter.hpp>
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#include <mapnik/noncopyable.hpp>
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// agg
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#include "agg_array.h"
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// boost
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#include <boost/optional.hpp>
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// stl
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#include <memory>
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namespace mapnik
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{
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using attr_storage = agg::pod_bvector<mapnik::svg::path_attributes>;
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using svg_storage_type = mapnik::svg::svg_storage<mapnik::svg::svg_path_storage,attr_storage>;
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using svg_path_ptr = std::shared_ptr<svg_storage_type>;
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using image_ptr = std::shared_ptr<image_data_32>;
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/**
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* A class to hold either vector or bitmap marker data. This allows these to be treated equally
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* in the image caches and most of the render paths.
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*/
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class marker: private mapnik::noncopyable
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{
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public:
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marker()
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{
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// create default OGC 4x4 black pixel
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bitmap_data_ = boost::optional<mapnik::image_ptr>(std::make_shared<image_data_32>(4,4));
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(*bitmap_data_)->set(0xff000000);
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}
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marker(boost::optional<mapnik::image_ptr> const& data)
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: bitmap_data_(data) {}
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marker(boost::optional<mapnik::svg_path_ptr> const& data)
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: vector_data_(data) {}
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marker(marker const& rhs)
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: bitmap_data_(rhs.bitmap_data_),
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vector_data_(rhs.vector_data_) {}
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box2d<double> bounding_box() const
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{
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if (is_vector())
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{
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return (*vector_data_)->bounding_box();
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}
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if (is_bitmap())
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{
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double width = (*bitmap_data_)->width();
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double height = (*bitmap_data_)->height();
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return box2d<double>(0, 0, width, height);
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}
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return box2d<double>();
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}
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inline double width() const
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{
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if (is_bitmap())
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{
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return (*bitmap_data_)->width();
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}
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else if (is_vector())
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{
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return (*vector_data_)->bounding_box().width();
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}
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return 0;
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}
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inline double height() const
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{
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if (is_bitmap())
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{
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return (*bitmap_data_)->height();
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}
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else if (is_vector())
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{
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return (*vector_data_)->bounding_box().height();
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}
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return 0;
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}
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inline bool is_bitmap() const
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{
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return bitmap_data_;
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}
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inline bool is_vector() const
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{
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return vector_data_;
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}
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boost::optional<mapnik::image_ptr> get_bitmap_data() const
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{
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return bitmap_data_;
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}
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boost::optional<mapnik::svg_path_ptr> get_vector_data() const
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{
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return vector_data_;
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}
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private:
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boost::optional<mapnik::image_ptr> bitmap_data_;
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boost::optional<mapnik::svg_path_ptr> vector_data_;
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};
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}
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#endif // MAPNIK_MARKER_HPP
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