diff options
Diffstat (limited to 'src/gui/text/qtextlayout.cpp')
| -rw-r--r-- | src/gui/text/qtextlayout.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/gui/text/qtextlayout.cpp b/src/gui/text/qtextlayout.cpp index d303219bb9..c1a27b2556 100644 --- a/src/gui/text/qtextlayout.cpp +++ b/src/gui/text/qtextlayout.cpp @@ -820,6 +820,10 @@ QTextLine QTextLayout::createLine() int l = d->lines.size(); if (l && d->lines.at(l-1).length < 0) { QTextLine(l-1, d).setNumColumns(INT_MAX); + if (d->maxWidth > QFIXED_MAX / 2) { + qWarning("QTextLayout: text too long, truncated."); + return QTextLine(); + } } int from = l > 0 ? d->lines.at(l-1).from + d->lines.at(l-1).length + d->lines.at(l-1).trailingSpaces : 0; int strlen = d->layoutData->string.length(); @@ -1295,13 +1299,13 @@ void QTextLayout::drawCursor(QPainter *p, const QPointF &pos, int cursorPosition bool rightToLeft = d->isRightToLeft(); if (itm >= 0) { const QScriptItem &si = d->layoutData->items.at(itm); - if (si.ascent > 0) + if (si.ascent >= 0) base = si.ascent; - if (si.descent > 0) + if (si.descent >= 0) descent = si.descent; rightToLeft = si.analysis.bidiLevel % 2; } - qreal y = position.y() + (sl.y + sl.base() - base).toReal(); + qreal y = position.y() + (sl.y + sl.base() + sl.descent - base - descent).toReal(); bool toggleAntialiasing = !(p->renderHints() & QPainter::Antialiasing) && (p->transform().type() > QTransform::TxTranslate); if (toggleAntialiasing) |