e7c3d04309
format all files Revert "format all files" This reverts commit 95d5812e49e7f916b68e786596f5a8eb5bcac414. Revert "format some files" This reverts commit ed3c8762d4d828b2b28e7b18809fc33f4f8ccaf5. format all files fix formatting in dir include fix formatting of debug macro
83 lines
2.7 KiB
C++
83 lines
2.7 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) 2021 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_IMAGE_READER_HPP
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#define MAPNIK_IMAGE_READER_HPP
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// mapnik
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#include <mapnik/image_any.hpp>
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#include <mapnik/config.hpp>
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#include <mapnik/util/noncopyable.hpp>
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#include <mapnik/factory.hpp>
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#include <mapnik/geometry/box2d.hpp>
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#include <mapnik/warning.hpp>
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MAPNIK_DISABLE_WARNING_PUSH
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#include <mapnik/warning_ignore.hpp>
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#include <boost/optional.hpp>
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MAPNIK_DISABLE_WARNING_POP
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// stl
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#include <stdexcept>
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#include <string>
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namespace mapnik {
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class image_reader_exception : public std::exception
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{
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private:
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std::string message_;
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public:
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image_reader_exception(std::string const& message)
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: message_(message)
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{}
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~image_reader_exception() {}
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virtual const char* what() const noexcept { return message_.c_str(); }
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};
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struct MAPNIK_DECL image_reader : private util::noncopyable
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{
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virtual unsigned width() const = 0;
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virtual unsigned height() const = 0;
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virtual bool has_alpha() const = 0;
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virtual boost::optional<box2d<double>> bounding_box() const = 0;
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virtual void read(unsigned x, unsigned y, image_rgba8& image) = 0;
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virtual image_any read(unsigned x, unsigned y, unsigned width, unsigned height) = 0;
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virtual ~image_reader() {}
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};
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template<typename... Args>
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bool register_image_reader(std::string const& type, image_reader* (*fun)(Args...))
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{
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return factory<image_reader, std::string, Args...>::instance().register_product(type, fun);
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}
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MAPNIK_DECL image_reader* get_image_reader(std::string const& file, std::string const& type);
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MAPNIK_DECL image_reader* get_image_reader(std::string const& file);
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MAPNIK_DECL image_reader* get_image_reader(char const* data, size_t size);
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} // namespace mapnik
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#endif // MAPNIK_IMAGE_READER_HPP
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