Merge branch '4.5'

Conflicts:
	src/gui/graphicsview/qgraphicsitem.cpp
	tools/qdoc3/test/assistant.qdocconf
	tools/qdoc3/test/designer.qdocconf
	tools/qdoc3/test/linguist.qdocconf
	tools/qdoc3/test/qmake.qdocconf
	tools/qdoc3/test/qt-build-docs.qdocconf
	tools/qdoc3/test/qt.qdocconf

1 files changed, 8 insertions, 3 deletions

diff --git a/examples/graphicsview/elasticnodes/edge.cpp b/examples/graphicsview/elasticnodes/edge.cpp
index 4018c25..e32a35a 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 (!qFuzzyCompare(length, qreal(0.0))) {
+        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