diff options
| -rw-r--r-- | src/gui/text/qtextlayout.cpp | 14 | ||||
| -rw-r--r-- | tests/auto/qtextlayout/tst_qtextlayout.cpp | 19 |
2 files changed, 30 insertions, 3 deletions
diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp index c5dd854..34272cc 100644 --- a/src/gui/text/qtextlayout.cpp +++ b/src/gui/text/qtextlayout.cpp @@ -1646,7 +1646,7 @@ namespace { { LineBreakHelper() : glyphCount(0), maxGlyphs(0), currentPosition(0), fontEngine(0), logClusters(0), - manualWrap(false) + manualWrap(false), whiteSpaceOrObject(true) { } @@ -1669,6 +1669,7 @@ namespace { const unsigned short *logClusters; bool manualWrap; + bool whiteSpaceOrObject; bool checkFullOtherwiseExtend(QScriptLine &line); @@ -1678,8 +1679,10 @@ namespace { } inline glyph_t currentGlyph() const - { + { Q_ASSERT(currentPosition > 0); + Q_ASSERT(logClusters[currentPosition - 1] < glyphs.numGlyphs); + return glyphs.glyphs[logClusters[currentPosition - 1]]; } @@ -1814,6 +1817,7 @@ void QTextLine::layout_helper(int maxGlyphs) lbh.tmpData.descent = qMax(lbh.tmpData.descent, current.descent); if (current.analysis.flags == QScriptAnalysis::Tab && (alignment & (Qt::AlignLeft | Qt::AlignRight | Qt::AlignCenter | Qt::AlignJustify))) { + lbh.whiteSpaceOrObject = true; if (lbh.checkFullOtherwiseExtend(line)) goto found; @@ -1830,6 +1834,7 @@ void QTextLine::layout_helper(int maxGlyphs) if (lbh.checkFullOtherwiseExtend(line)) goto found; } else if (current.analysis.flags == QScriptAnalysis::LineOrParagraphSeparator) { + lbh.whiteSpaceOrObject = true; // if the line consists only of the line separator make sure // we have a sane height if (!line.length && !lbh.tmpData.length) @@ -1843,6 +1848,7 @@ void QTextLine::layout_helper(int maxGlyphs) line += lbh.tmpData; goto found; } else if (current.analysis.flags == QScriptAnalysis::Object) { + lbh.whiteSpaceOrObject = true; lbh.tmpData.length++; QTextFormat format = eng->formats()->format(eng->formatIndex(&eng->layoutData->items[item])); @@ -1856,6 +1862,7 @@ void QTextLine::layout_helper(int maxGlyphs) if (lbh.checkFullOtherwiseExtend(line)) goto found; } else if (attributes[lbh.currentPosition].whiteSpace) { + lbh.whiteSpaceOrObject = true; while (lbh.currentPosition < end && attributes[lbh.currentPosition].whiteSpace) addNextCluster(lbh.currentPosition, end, lbh.spaceData, lbh.glyphCount, current, lbh.logClusters, lbh.glyphs); @@ -1865,6 +1872,7 @@ void QTextLine::layout_helper(int maxGlyphs) goto found; } } else { + lbh.whiteSpaceOrObject = false; bool sb_or_ws = false; do { addNextCluster(lbh.currentPosition, end, lbh.tmpData, lbh.glyphCount, @@ -1926,7 +1934,7 @@ void QTextLine::layout_helper(int maxGlyphs) LB_DEBUG("reached end of line"); lbh.checkFullOtherwiseExtend(line); found: - if (lbh.rightBearing > 0) // If right bearing has not yet been adjusted + if (lbh.rightBearing > 0 && !lbh.whiteSpaceOrObject) // If right bearing has not yet been adjusted lbh.adjustRightBearing(); line.textAdvance = line.textWidth; line.textWidth -= qMin(QFixed(), lbh.rightBearing); diff --git a/tests/auto/qtextlayout/tst_qtextlayout.cpp b/tests/auto/qtextlayout/tst_qtextlayout.cpp index caf9bd3..6d27ef2 100644 --- a/tests/auto/qtextlayout/tst_qtextlayout.cpp +++ b/tests/auto/qtextlayout/tst_qtextlayout.cpp @@ -110,6 +110,7 @@ private slots: void longText(); void widthOfTabs(); void columnWrapWithTabs(); + void glyphLessItems(); // QTextLine stuff void setNumColumnsWrapAtWordBoundaryOrAnywhere(); @@ -1319,6 +1320,24 @@ void tst_QTextLayout::lineWidthFromBOM() // Don't spin into an infinite loop } +void tst_QTextLayout::glyphLessItems() +{ + { + QTextLayout layout; + layout.setText("\t\t"); + layout.beginLayout(); + layout.createLine(); + layout.endLayout(); + } + + { + QTextLayout layout; + layout.setText(QString::fromLatin1("AA") + QChar(QChar::LineSeparator)); + layout.beginLayout(); + layout.createLine(); + layout.endLayout(); + } +} QTEST_MAIN(tst_QTextLayout) #include "tst_qtextlayout.moc" |