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Diffstat (limited to 'src/gui/painting/qtransform.cpp')
| -rw-r--r-- | src/gui/painting/qtransform.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/gui/painting/qtransform.cpp b/src/gui/painting/qtransform.cpp index 80b7520..aaa241f 100644 --- a/src/gui/painting/qtransform.cpp +++ b/src/gui/painting/qtransform.cpp @@ -1545,12 +1545,19 @@ static inline bool lineTo_clipped(QPainterPath &path, const QTransform &transfor return true; } +Q_GUI_EXPORT bool qt_scaleForTransform(const QTransform &transform, qreal *scale); static inline bool cubicTo_clipped(QPainterPath &path, const QTransform &transform, const QPointF &a, const QPointF &b, const QPointF &c, const QPointF &d, bool needsMoveTo) { // Convert projective xformed curves to line // segments so they can be transformed more accurately - QPolygonF segment = QBezier::fromPoints(a, b, c, d).toPolygon(); + + qreal scale; + qt_scaleForTransform(transform, &scale); + + qreal curveThreshold = scale == 0 ? qreal(0.25) : (qreal(0.25) / scale); + + QPolygonF segment = QBezier::fromPoints(a, b, c, d).toPolygon(curveThreshold); for (int i = 0; i < segment.size() - 1; ++i) if (lineTo_clipped(path, transform, segment.at(i), segment.at(i+1), needsMoveTo)) |