guardia-messenger/node_modules/react-native/ReactCommon/react/renderer/components/text/ParagraphLayoutManager.cpp
DESKTOP-TKLFCPRython f29f525c77 refactor: 101.79.17.164 → zioinfo.co.kr 전체 도메인 변환 + Manager UI 배포
- 37개 파일 IP → zioinfo.co.kr 치환 (소스/매뉴얼/설정/하네스)
- Manager DrConsole/NetworkConsole/CsapConsole 빌드 + /var/www/manager/ 배포
- 테스트: Manager HTTP 200, ITSM 신규 API 7개 전체 200

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-31 10:09:17 +09:00

101 lines
3.3 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include "ParagraphLayoutManager.h"
#include <react/utils/CoreFeatures.h>
#include <react/utils/hash_combine.h>
namespace facebook::react {
TextMeasurement ParagraphLayoutManager::measure(
const AttributedString& attributedString,
const ParagraphAttributes& paragraphAttributes,
const TextLayoutContext& layoutContext,
LayoutConstraints layoutConstraints) const {
if (CoreFeatures::cacheLastTextMeasurement) {
bool shouldMeasure = shouldMeasureString(
attributedString, paragraphAttributes, layoutConstraints);
if (shouldMeasure) {
cachedTextMeasurement_ = textLayoutManager_->measure(
AttributedStringBox(attributedString),
paragraphAttributes,
layoutContext,
layoutConstraints,
hostTextStorage_);
lastAvailableWidth_ = layoutConstraints.maximumSize.width;
}
return cachedTextMeasurement_;
} else {
return textLayoutManager_->measure(
AttributedStringBox(attributedString),
paragraphAttributes,
layoutContext,
layoutConstraints,
nullptr);
}
}
bool ParagraphLayoutManager::shouldMeasureString(
const AttributedString& attributedString,
const ParagraphAttributes& paragraphAttributes,
LayoutConstraints layoutConstraints) const {
size_t newParagraphInputHash =
hash_combine(attributedString, paragraphAttributes);
if (newParagraphInputHash != paragraphInputHash_) {
// AttributedString or ParagraphAttributes have changed.
// Must create new host text storage and trigger measure.
hostTextStorage_ = textLayoutManager_->getHostTextStorage(
attributedString, paragraphAttributes, layoutConstraints);
paragraphInputHash_ = newParagraphInputHash;
return true; // Must measure again.
}
// Detect the case when available width for Paragraph meaningfully changes.
// This is to prevent unnecessary re-creation of NSTextStorage on iOS.
// On Android, this is no-op.
bool hasMaximumSizeChanged =
layoutConstraints.maximumSize.width != lastAvailableWidth_;
Float threshold = 0.01f;
bool doesMaximumSizeMatchLastMeasurement =
std::abs(
layoutConstraints.maximumSize.width -
cachedTextMeasurement_.size.width) < threshold;
if (hasMaximumSizeChanged && !doesMaximumSizeMatchLastMeasurement) {
hostTextStorage_ = textLayoutManager_->getHostTextStorage(
attributedString, paragraphAttributes, layoutConstraints);
return true;
}
return false;
}
LinesMeasurements ParagraphLayoutManager::measureLines(
const AttributedString& attributedString,
const ParagraphAttributes& paragraphAttributes,
Size size) const {
return textLayoutManager_->measureLines(
attributedString, paragraphAttributes, size);
}
void ParagraphLayoutManager::setTextLayoutManager(
std::shared_ptr<const TextLayoutManager> textLayoutManager) const {
textLayoutManager_ = std::move(textLayoutManager);
}
std::shared_ptr<const TextLayoutManager>
ParagraphLayoutManager::getTextLayoutManager() const {
return textLayoutManager_;
}
std::shared_ptr<void> ParagraphLayoutManager::getHostTextStorage() const {
return hostTextStorage_;
}
} // namespace facebook::react