mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
J.T. Yim
4eec47344e
Summary: Changelog: [Internal] Include FlexLayout C++ source to ReactCommons Reviewed By: d16r, NickGerleman Differential Revision: D38716145 fbshipit-source-id: 0ca2ab040e72168f2f1b479609b6cda2787eba66
68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <cmath>
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#include "FlexLayoutEnums.h"
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#include "FlexLayoutMacros.h"
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#include "Type.h"
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#ifdef DEBUG
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#include <iosfwd>
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#endif
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namespace facebook {
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namespace flexlayout {
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#ifdef DEBUG
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auto operator<<(std::ostream& os, const AlignContent& x) -> std::ostream&;
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auto operator<<(std::ostream& os, const AlignItems& x) -> std::ostream&;
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auto operator<<(std::ostream& os, const AlignSelf& x) -> std::ostream&;
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auto operator<<(std::ostream& os, const Edge& x) -> std::ostream&;
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auto operator<<(std::ostream& os, const PositionType& x) -> std::ostream&;
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auto operator<<(std::ostream& os, const Display& x) -> std::ostream&;
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#endif
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namespace utils {
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class Dimension {
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public:
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Dimension() {
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value = NAN;
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unit = Unit::Undefined;
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}
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explicit Dimension(const Float value, const Unit unit)
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: value(value), unit(unit) {}
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[[nodiscard]] auto resolve(const Float ownerSize) const -> Float {
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switch (unit) {
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case Unit::Point:
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return value;
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case Unit::Percent:
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return value * ownerSize * 0.01f;
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case Unit::Auto:
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case Unit::Undefined:
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return NAN;
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}
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}
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FLEX_LAYOUT_EXPORT auto operator==(const Dimension& rhs) const -> bool;
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auto operator!=(const Dimension& rhs) const -> bool;
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Float value;
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Unit unit;
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};
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#ifdef DEBUG
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auto operator<<(std::ostream& os, const Dimension& x) -> std::ostream&;
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#endif
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} // namespace utils
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} // namespace flexlayout
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} // namespace facebook
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