diff options
Diffstat (limited to 'examples/widgets/painting/gradients/gradients.cpp')
| -rw-r--r-- | examples/widgets/painting/gradients/gradients.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/examples/widgets/painting/gradients/gradients.cpp b/examples/widgets/painting/gradients/gradients.cpp index 76d5818d32..045da2b0c0 100644 --- a/examples/widgets/painting/gradients/gradients.cpp +++ b/examples/widgets/painting/gradients/gradients.cpp @@ -105,6 +105,8 @@ uint ShadeWidget::colorAt(int x) for (int i = 1; i < pts.size(); ++i) { if (pts.at(i - 1).x() <= x && pts.at(i).x() >= x) { QLineF l(pts.at(i - 1), pts.at(i)); + if (qIsNull(l.dx())) + continue; l.setLength(l.length() * ((x - l.x1()) / l.dx())); return m_shade.pixel(qRound(qMin(l.x2(), (qreal(m_shade.width() - 1)))), qRound(qMin(l.y2(), qreal(m_shade.height() - 1)))); |