diff options
| -rw-r--r-- | src/gui/painting/qpainterpath.cpp | 8 | ||||
| -rw-r--r-- | tests/auto/qpainterpath/tst_qpainterpath.cpp | 5 |
2 files changed, 9 insertions, 4 deletions
diff --git a/src/gui/painting/qpainterpath.cpp b/src/gui/painting/qpainterpath.cpp index 7ecf10a..88eef99 100644 --- a/src/gui/painting/qpainterpath.cpp +++ b/src/gui/painting/qpainterpath.cpp @@ -1690,7 +1690,7 @@ static void qt_painterpath_isect_line(const QPointF &p1, } static void qt_painterpath_isect_curve(const QBezier &bezier, const QPointF &pt, - int *winding) + int *winding, int depth = 0) { qreal y = pt.y(); qreal x = pt.x(); @@ -1705,7 +1705,7 @@ static void qt_painterpath_isect_curve(const QBezier &bezier, const QPointF &pt, // hit lower limit... This is a rough threshold, but its a // tradeoff between speed and precision. const qreal lower_bound = qreal(.001); - if (bounds.width() < lower_bound && bounds.height() < lower_bound) { + if (depth == 32 || (bounds.width() < lower_bound && bounds.height() < lower_bound)) { // We make the assumption here that the curve starts to // approximate a line after while (i.e. that it doesn't // change direction drastically during its slope) @@ -1718,8 +1718,8 @@ static void qt_painterpath_isect_curve(const QBezier &bezier, const QPointF &pt, // split curve and try again... QBezier first_half, second_half; bezier.split(&first_half, &second_half); - qt_painterpath_isect_curve(first_half, pt, winding); - qt_painterpath_isect_curve(second_half, pt, winding); + qt_painterpath_isect_curve(first_half, pt, winding, depth + 1); + qt_painterpath_isect_curve(second_half, pt, winding, depth + 1); } } diff --git a/tests/auto/qpainterpath/tst_qpainterpath.cpp b/tests/auto/qpainterpath/tst_qpainterpath.cpp index 00f9b91..4ade9ad 100644 --- a/tests/auto/qpainterpath/tst_qpainterpath.cpp +++ b/tests/auto/qpainterpath/tst_qpainterpath.cpp @@ -290,6 +290,11 @@ void tst_QPainterPath::contains_QPointF_data() QTest::newRow("horizontal cubic, out left") << path << QPointF(0, 100) << false; QTest::newRow("horizontal cubic, out right") << path << QPointF(300, 100) <<false; QTest::newRow("horizontal cubic, in mid") << path << QPointF(150, 100) << true; + + path = QPainterPath(); + path.addEllipse(QRectF(-5000.0, -5000.0, 1500000.0, 1500000.0)); + QTest::newRow("huge ellipse, qreal=float crash") << path << QPointF(1100000.35, 1098000.2) << true; + } void tst_QPainterPath::contains_QPointF() |