From 56780fa337eb93b00cfcff97adacb0ee2130221e Mon Sep 17 00:00:00 2001
From: Roman Telezhynskyi <kroluku@gmail.com>
Date: Tue, 8 May 2018 12:06:40 +0300
Subject: [PATCH] Do not send geometry changes when set control point line. ref
 #842.

--HG--
branch : develop
---
 src/libs/vwidgets/vcontrolpointspline.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libs/vwidgets/vcontrolpointspline.cpp b/src/libs/vwidgets/vcontrolpointspline.cpp
index 2edab8a69..e9c7ebedf 100644
--- a/src/libs/vwidgets/vcontrolpointspline.cpp
+++ b/src/libs/vwidgets/vcontrolpointspline.cpp
@@ -276,8 +276,10 @@ void VControlPointSpline::SetCtrlLine(const QPointF &controlPoint, const QPointF
     VGObject::LineIntersectCircle(QPointF(), ScaledRadius(SceneScale(scene())),
                                   QLineF( QPointF(), splinePoint-controlPoint), p1, p2);
     QLineF line(splinePoint-controlPoint, p1);
+    controlLine->setFlag(QGraphicsItem::ItemSendsGeometryChanges, false);
     controlLine->setLine(line);
     controlLine->setVisible(not line.isNull());
+    controlLine->setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
 }
 
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