mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
104ef96498
Summary: `LayoutConstraints::clamp` clamps the provided `Size` between the `minimumSize` and `maximumSize` bounds of this `LayoutConstraints`. Reviewed By: mdvacca Differential Revision: D14205770 fbshipit-source-id: 4799608cead393451d334e47dd6906255699a1e8
57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its 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 <folly/Hash.h>
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#include <react/core/LayoutPrimitives.h>
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#include <react/graphics/Geometry.h>
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namespace facebook {
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namespace react {
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/*
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* Unified layout constraints for measuring.
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*/
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struct LayoutConstraints {
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Size minimumSize{0, 0};
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Size maximumSize{kFloatUndefined, kFloatUndefined};
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LayoutDirection layoutDirection{LayoutDirection::Undefined};
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/*
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* Clamps the provided `Size` between the `minimumSize` and `maximumSize`
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* bounds of this `LayoutConstraints`.
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*/
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Size clamp(const Size &size) const;
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};
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inline bool operator==(
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const LayoutConstraints &lhs,
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const LayoutConstraints &rhs) {
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return std::tie(lhs.minimumSize, lhs.maximumSize, lhs.layoutDirection) ==
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std::tie(rhs.minimumSize, rhs.maximumSize, rhs.layoutDirection);
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}
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} // namespace react
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} // namespace facebook
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namespace std {
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template <>
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struct hash<facebook::react::LayoutConstraints> {
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size_t operator()(
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const facebook::react::LayoutConstraints &constraints) const {
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auto seed = size_t{0};
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folly::hash::hash_combine(
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seed,
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constraints.minimumSize,
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constraints.maximumSize,
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constraints.layoutDirection);
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return seed;
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}
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};
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} // namespace std
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