diff options
| author | Raph Levien <raph@google.com> | 2016-02-18 10:27:38 -0800 |
|---|---|---|
| committer | Raph Levien <raph@google.com> | 2016-02-18 10:33:14 -0800 |
| commit | aa736d00548da691e75a09a70deb886e1f68b060 (patch) | |
| tree | 29716607cd8c19ad2756237f76a9aee71397872a | |
| parent | bcb024df56c8ae7a5914d6f060ac99a2b5d118d9 (diff) | |
| download | android_frameworks_minikin-aa736d00548da691e75a09a70deb886e1f68b060.tar.gz android_frameworks_minikin-aa736d00548da691e75a09a70deb886e1f68b060.tar.bz2 android_frameworks_minikin-aa736d00548da691e75a09a70deb886e1f68b060.zip | |
Disable hyphenation when word overlaps style boundary
In cases when a word (as defined by the ICU break iterator) overlaps a
style boundary, the returned wordStart can be extend before the range
currently being measured for layout. When we try to hyphenate the
resulting substrings, we get a negative range, which crashes. This
patch disables hyphenation in this case.
Bug: 27237112
Change-Id: I76d04b39dd3b4d6d267aaaf4bebc9ab361891646
| -rw-r--r-- | libs/minikin/LineBreaker.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libs/minikin/LineBreaker.cpp b/libs/minikin/LineBreaker.cpp index 9cf07d5..22c3954 100644 --- a/libs/minikin/LineBreaker.cpp +++ b/libs/minikin/LineBreaker.cpp @@ -174,7 +174,8 @@ float LineBreaker::addStyleRun(MinikinPaint* paint, const FontCollection* typefa if (paint != nullptr && mHyphenator != nullptr && mHyphenationFrequency != kHyphenationFrequency_None && !wordEndsInHyphen && !temporarilySkipHyphenation && - wordEnd > wordStart && wordEnd - wordStart <= LONGEST_HYPHENATED_WORD) { + wordStart >= start && wordEnd > wordStart && + wordEnd - wordStart <= LONGEST_HYPHENATED_WORD) { mHyphenator->hyphenate(&mHyphBuf, &mTextBuf[wordStart], wordEnd - wordStart); #if VERBOSE_DEBUG std::string hyphenatedString; |