mirror of
https://github.com/zhigang1992/react-native.git
synced 2026-01-12 22:50:10 +08:00
184cfd5594
Summary: So, changes: * Correctness checks only in debug mode (codesize win?); * `registerInstance` marked as const (because it's thread safe); * ContextContainer::Shared also enforces constness; * Using faster better::map; * Using shared/RW mutex instead of regular one; * SharedContextContainer got removed. Reviewed By: sahrens Differential Revision: D14920284 fbshipit-source-id: f0f8d970e7fae79a1abe3bc32827db9fd2d17e13
52 lines
1.3 KiB
C++
52 lines
1.3 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 <memory>
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#include <react/attributedstring/AttributedString.h>
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#include <react/attributedstring/ParagraphAttributes.h>
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#include <react/core/LayoutConstraints.h>
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#include <react/utils/ContextContainer.h>
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namespace facebook {
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namespace react {
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class TextLayoutManager;
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using SharedTextLayoutManager = std::shared_ptr<const TextLayoutManager>;
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/*
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* Cross platform facade for iOS-specific RCTTTextLayoutManager.
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*/
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class TextLayoutManager {
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public:
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TextLayoutManager(ContextContainer::Shared const &contextContainer);
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~TextLayoutManager();
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/*
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* Measures `attributedString` using native text rendering infrastructure.
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*/
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Size measure(
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AttributedString attributedString,
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ParagraphAttributes paragraphAttributes,
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LayoutConstraints layoutConstraints) const;
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/*
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* Returns an opaque pointer to platform-specific TextLayoutManager.
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* Is used on a native views layer to delegate text rendering to the manager.
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*/
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void *getNativeTextLayoutManager() const;
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private:
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void *self_;
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};
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} // namespace react
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} // namespace facebook
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