Ensure lastPixel.y is also initalized to -1 when necessary

Task-number: QTBUG-31579

Change-Id: Ia4916ac0d384ea523bbfad0dafbc90044da7ec3e
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/gui/painting/qcosmeticstroker.cpp b/src/gui/painting/qcosmeticstroker.cpp
index 39f64224f0..a2301e3cd8 100644
--- a/src/gui/painting/qcosmeticstroker.cpp
+++ b/src/gui/painting/qcosmeticstroker.cpp
@@ -305,6 +305,7 @@ void QCosmeticStroker::setup()
     ymax = deviceRect.bottom() + 2;
 
     lastPixel.x = -1;
+    lastPixel.y = -1;
 }
 
 // returns true if the whole line gets clipped away
@@ -533,6 +534,7 @@ void QCosmeticStroker::drawPath(const QVectorPath &path)
             QPointF p = QPointF(points[0], points[1]) * state->matrix;
             patternOffset = state->lastPen.dashOffset()*64;
             lastPixel.x = -1;
+            lastPixel.y = -1;
 
             bool closed;
             const QPainterPath::ElementType *e = subPath(type, end, points, &closed);
@@ -587,6 +589,7 @@ void QCosmeticStroker::drawPath(const QVectorPath &path)
         QPointF movedTo = p;
         patternOffset = state->lastPen.dashOffset()*64;
         lastPixel.x = -1;
+        lastPixel.y = -1;
 
         const qreal *begin = points;
         const qreal *end = points + 2*path.elementCount();