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61 lines
2.1 KiB
61 lines
2.1 KiB
#pragma once |
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// (c) Dean McNamee <dean@gmail.com>, 2012. |
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// C++ port by Mapbox, Konstantin Käfer <mail@kkaefer.com>, 2014-2017. |
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// |
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// https://github.com/deanm/css-color-parser-js |
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// https://github.com/kkaefer/css-color-parser-cpp |
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// |
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// Permission is hereby granted, free of charge, to any person obtaining a copy |
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// of this software and associated documentation files (the "Software"), to |
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// deal in the Software without restriction, including without limitation the |
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
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// sell copies of the Software, and to permit persons to whom the Software is |
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// furnished to do so, subject to the following conditions: |
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// |
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// The above copyright notice and this permission notice shall be included in |
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// all copies or substantial portions of the Software. |
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// |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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// IN THE SOFTWARE. |
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#ifndef CSS_COLOR_PARSER_CPP |
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#define CSS_COLOR_PARSER_CPP |
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#include <string> |
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#include <cmath> |
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#include <optional> |
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namespace CSSColorParser { |
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template <class T> |
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using optional = std::optional<T>; |
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struct Color { |
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inline Color() { |
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} |
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inline Color(unsigned char r_, unsigned char g_, unsigned char b_, float a_) |
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: r(r_), g(g_), b(b_), a(a_ > 1 ? 1 : a_ < 0 ? 0 : a_) { |
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} |
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unsigned char r = 0, g = 0, b = 0; |
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float a = 1.0f; |
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}; |
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inline bool operator==(const Color& lhs, const Color& rhs) { |
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return lhs.r == rhs.r && lhs.g == rhs.g && lhs.b == rhs.b && ::fabs(lhs.a - rhs.a) < 0.0001f; |
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} |
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inline bool operator!=(const Color& lhs, const Color& rhs) { |
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return !(lhs == rhs); |
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} |
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optional<Color> parse(const std::string& css_str); |
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} // namespace CSSColorParser |
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#endif |
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