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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /intl/components/src/BidiEmbeddingLevel.cpp
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'intl/components/src/BidiEmbeddingLevel.cpp')
-rw-r--r--intl/components/src/BidiEmbeddingLevel.cpp53
1 files changed, 53 insertions, 0 deletions
diff --git a/intl/components/src/BidiEmbeddingLevel.cpp b/intl/components/src/BidiEmbeddingLevel.cpp
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/intl/BidiEmbeddingLevel.h"
+#include "mozilla/Casting.h"
+#include "mozilla/intl/ICU4CGlue.h"
+
+#include "unicode/ubidi.h"
+
+namespace mozilla::intl {
+
+bool BidiEmbeddingLevel::IsDefaultLTR() const {
+ return mValue == UBIDI_DEFAULT_LTR;
+};
+
+bool BidiEmbeddingLevel::IsDefaultRTL() const {
+ return mValue == UBIDI_DEFAULT_RTL;
+};
+
+bool BidiEmbeddingLevel::IsRTL() const {
+ // If the least significant bit is 1, then the embedding level
+ // is right-to-left.
+ // If the least significant bit is 0, then the embedding level
+ // is left-to-right.
+ return (mValue & 0x1) == 1;
+};
+
+bool BidiEmbeddingLevel::IsLTR() const { return !IsRTL(); };
+
+bool BidiEmbeddingLevel::IsSameDirection(BidiEmbeddingLevel aOther) const {
+ return (((mValue ^ aOther) & 1) == 0);
+}
+
+BidiEmbeddingLevel BidiEmbeddingLevel::LTR() { return BidiEmbeddingLevel(0); };
+
+BidiEmbeddingLevel BidiEmbeddingLevel::RTL() { return BidiEmbeddingLevel(1); };
+
+BidiEmbeddingLevel BidiEmbeddingLevel::DefaultLTR() {
+ return BidiEmbeddingLevel(UBIDI_DEFAULT_LTR);
+};
+
+BidiEmbeddingLevel BidiEmbeddingLevel::DefaultRTL() {
+ return BidiEmbeddingLevel(UBIDI_DEFAULT_RTL);
+};
+
+BidiDirection BidiEmbeddingLevel::Direction() {
+ return IsRTL() ? BidiDirection::RTL : BidiDirection::LTR;
+};
+
+uint8_t BidiEmbeddingLevel::Value() const { return mValue; }
+
+} // namespace mozilla::intl