1 files changed, 13 insertions, 5 deletions
diff --git a/examples/graphicsview/elasticnodes/edge.cpp b/examples/graphicsview/elasticnodes/edge.cpp
index 4018c25..eb02143 100644
--- a/examples/graphicsview/elasticnodes/edge.cpp
+++ b/examples/graphicsview/elasticnodes/edge.cpp
@@ -93,11 +93,16 @@ void Edge::adjust()
 
     QLineF line(mapFromItem(source, 0, 0), mapFromItem(dest, 0, 0));
     qreal length = line.length();
-    QPointF edgeOffset((line.dx() * 10) / length, (line.dy() * 10) / length);
 
     prepareGeometryChange();
-    sourcePoint = line.p1() + edgeOffset;
-    destPoint = line.p2() - edgeOffset;
+
+    if (length > qreal(20.)) {
+        QPointF edgeOffset((line.dx() * 10) / length, (line.dy() * 10) / length);
+        sourcePoint = line.p1() + edgeOffset;
+        destPoint = line.p2() - edgeOffset;
+    } else {
+        sourcePoint = destPoint = line.p1();
+    }
 }
 
 QRectF Edge::boundingRect() const
@@ -119,12 +124,15 @@ void Edge::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
     if (!source || !dest)
         return;
 
-    // Draw the line itself
     QLineF line(sourcePoint, destPoint);
+    if (qFuzzyCompare(line.length(), qreal(0.)))
+        return;
+
+    // Draw the line itself
     painter->setPen(QPen(Qt::black, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
     painter->drawLine(line);
 
-    // Draw the arrows if there's enough room
+    // Draw the arrows
     double angle = ::acos(line.dx() / line.length());
     if (line.dy() >= 0)
         angle = TwoPi - angle;