diff options
Diffstat (limited to 'tests')
-rw-r--r-- | tests/auto/qtextscriptengine/tst_qtextscriptengine.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/auto/qtextscriptengine/tst_qtextscriptengine.cpp b/tests/auto/qtextscriptengine/tst_qtextscriptengine.cpp index 113f110..a45107a 100644 --- a/tests/auto/qtextscriptengine/tst_qtextscriptengine.cpp +++ b/tests/auto/qtextscriptengine/tst_qtextscriptengine.cpp @@ -116,6 +116,7 @@ private slots: void thaiWithZWJ(); void thaiLineSplitting(); void thaiSaraAM(); + void thaiMultipleVowels(); }; tst_QTextScriptEngine::tst_QTextScriptEngine() @@ -1355,5 +1356,33 @@ void tst_QTextScriptEngine::thaiSaraAM() QCOMPARE(e->layoutData->logClustersPtr[i], clusterNumber[i]); } +void tst_QTextScriptEngine::thaiMultipleVowels() +{ + QString s(QString::fromUtf8("ส")); + for (int i = 0; i < 100; i++) + s += QChar(0x0E47); // Add lots of "VOWEL SIGN MAI TAI KHU N/S-T" stacked on top of the character + s += QChar(0x200D); // Now add a zero width joiner (which adds a circle which is hidden) + for (int i = 0; i < 100; i++) + s += QChar(0x0E47); //Add lots of "VOWEL SIGN MAI TAI KHU N/S-T" stacked on top of the ZWJ + + for (int i = 0; i < 10; i++) + s += s; //Repeat the string to make it more likely to crash if we have a buffer overflow + QTextLayout layout(s); + layout.beginLayout(); + layout.createLine(); + layout.endLayout(); + + QTextEngine *e = layout.engine(); + e->width(0, s.length()); //force itemize and shape + + int k = 0; + for (int i = 0; i < e->layoutData->items.size(); i++) + for (int j = 0; j < e->layoutData->items[i].num_glyphs; j++) { + bool isZWJ = k%401 == 200; + QCOMPARE((bool)e->layoutData->glyphLayout.attributes[k++].dontPrint, isZWJ); + } +} + + QTEST_MAIN(tst_QTextScriptEngine) #include "tst_qtextscriptengine.moc" |