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
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) 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_VIEW_NULL_HPP
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#define MAPNIK_IMAGE_VIEW_NULL_HPP
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#include <mapnik/image_view.hpp>
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// stl
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#include <stdexcept>
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namespace mapnik {
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template<>
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class MAPNIK_DECL image_view<image_null>
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{
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public:
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using pixel_type = image_null::pixel_type;
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static const image_dtype dtype = image_null::dtype;
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image_view() {}
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~image_view(){};
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image_view(image_view<image_null> const&) {}
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image_view<image_null>& operator=(image_view<image_null> const&) { return *this; }
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bool operator==(image_view<image_null> const&) const { return true; }
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bool operator<(image_view<image_null> const&) const { return false; }
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std::size_t x() const { return 0; }
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std::size_t y() const { return 0; }
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std::size_t width() const { return 0; }
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std::size_t height() const { return 0; }
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pixel_type operator()(std::size_t, std::size_t) const
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{
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throw std::runtime_error("Can not get from a null image view");
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}
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std::size_t size() const { return 0; }
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std::size_t row_size() const { return 0; }
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const pixel_type* get_row(std::size_t) const { return nullptr; }
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const pixel_type* get_row(std::size_t, std::size_t) const { return nullptr; }
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bool get_premultiplied() const { return false; }
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double get_offset() const { return 0.0; }
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double get_scaling() const { return 1.0; }
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image_dtype get_dtype() const { return dtype; }
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};
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} // namespace mapnik
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#endif // MAPNIK_IMAGE_VIEW_NULL_HPP
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