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| author | Jiang Jiang <jiang.jiang@nokia.com> | 2012-02-27 08:51:46 (GMT) |
|---|---|---|
| committer | Qt by Nokia <qt-info@nokia.com> | 2012-02-28 10:00:56 (GMT) |
| commit | 74e777a76b9ac63107a32422c28ad79cd2217250 (patch) | |
| tree | 0f5b0a55c26be6ddaf3fdcfe4489f68afca86701 | |
| parent | 0f3d46b43f344abd8e158166c0e391ef404f2e2d (diff) | |
| download | Qt-74e777a76b9ac63107a32422c28ad79cd2217250.zip Qt-74e777a76b9ac63107a32422c28ad79cd2217250.tar.gz Qt-74e777a76b9ac63107a32422c28ad79cd2217250.tar.bz2 | |
Fix divide by zero when glyphWidth is 0
Change-Id: Ic0108b76b8d73cc977f8d64e036a65cb93db4684
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>
| -rw-r--r-- | src/gui/text/qtextengine.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gui/text/qtextengine.cpp b/src/gui/text/qtextengine.cpp index effb6e1..3137de6 100644 --- a/src/gui/text/qtextengine.cpp +++ b/src/gui/text/qtextengine.cpp @@ -2917,6 +2917,8 @@ int QTextEngine::positionInLigature(const QScriptItem *si, int end, QFixed glyphWidth = glyphs.effectiveAdvance(glyph_pos); // the approximate width of each individual element of the ligature QFixed perItemWidth = glyphWidth / clusterLength; + if (perItemWidth <= 0) + return si->position + clusterStart; QFixed left = x > edge ? edge : edge - glyphWidth; int n = ((x - left) / perItemWidth).floor().toInt(); QFixed dist = x - left - n * perItemWidth; |