From 037e91484ae576d747b93ebce47a1fa9458a6ceb Mon Sep 17 00:00:00 2001
From: Roman Telezhynskyi <kroluku@gmail.com>
Date: Thu, 17 Mar 2016 16:26:25 +0200
Subject: [PATCH] For tool Cubic Bezier curve show connection to control
 points.

--HG--
branch : feature
---
 .../vtools/visualization/vistoolcubicbezier.cpp    | 14 ++++++++------
 src/libs/vtools/visualization/vistoolcubicbezier.h |  3 ++-
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/src/libs/vtools/visualization/vistoolcubicbezier.cpp b/src/libs/vtools/visualization/vistoolcubicbezier.cpp
index 6234c6913..c6d3af4ca 100644
--- a/src/libs/vtools/visualization/vistoolcubicbezier.cpp
+++ b/src/libs/vtools/visualization/vistoolcubicbezier.cpp
@@ -39,14 +39,16 @@ VisToolCubicBezier::VisToolCubicBezier(const VContainer *data, QGraphicsItem *pa
       point2(nullptr),
       point3(nullptr),
       point4(nullptr),
-      helpLine(nullptr)
+      helpLine1(nullptr),
+      helpLine2(nullptr)
 {
+    helpLine1 = InitItem<QGraphicsLineItem>(mainColor, this);
+    helpLine2 = InitItem<QGraphicsLineItem>(mainColor, this);
+
     point1 = InitPoint(supportColor, this);
     point2 = InitPoint(supportColor, this); //-V656
     point3 = InitPoint(supportColor, this); //-V656
     point4 = InitPoint(supportColor, this); //-V656
-
-    helpLine = InitItem<QGraphicsLineItem>(mainColor, this);
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -65,14 +67,13 @@ void VisToolCubicBezier::RefreshGeometry()
         if (object2Id <= NULL_ID)
         {
             const QLineF line = QLineF(first->toQPointF(), Visualization::scenePos);
-            DrawLine(helpLine, line, mainColor, lineStyle);
+            DrawLine(helpLine1, line, mainColor, Qt::DashLine);
         }
         else
         {
-            helpLine->setVisible(false);
-
             const auto second = Visualization::data->GeometricObject<VPointF>(object2Id);
             DrawPoint(point2, second->toQPointF(), supportColor);
+            DrawLine(helpLine1, QLineF(first->toQPointF(), second->toQPointF()), mainColor, Qt::DashLine);
 
             if (object3Id <= NULL_ID)
             {
@@ -94,6 +95,7 @@ void VisToolCubicBezier::RefreshGeometry()
                 {
                     const auto fourth = Visualization::data->GeometricObject<VPointF>(object4Id);
                     DrawPoint(point4, fourth->toQPointF(), supportColor);
+                    DrawLine(helpLine2, QLineF(fourth->toQPointF(), third->toQPointF()), mainColor, Qt::DashLine);
 
                     VCubicBezier spline(*first, *second, *third,  *fourth);
                     DrawPath(this, spline.GetPath(PathDirection::Show), mainColor, Qt::SolidLine, Qt::RoundCap);
diff --git a/src/libs/vtools/visualization/vistoolcubicbezier.h b/src/libs/vtools/visualization/vistoolcubicbezier.h
index d67fcfdf7..2fc6d5fd9 100644
--- a/src/libs/vtools/visualization/vistoolcubicbezier.h
+++ b/src/libs/vtools/visualization/vistoolcubicbezier.h
@@ -56,7 +56,8 @@ protected:
     QGraphicsEllipseItem *point2;
     QGraphicsEllipseItem *point3;
     QGraphicsEllipseItem *point4;
-    QGraphicsLineItem    *helpLine;
+    QGraphicsLineItem    *helpLine1;
+    QGraphicsLineItem    *helpLine2;
 };
 
 #endif // VISTOOLCUBICBEZIER_H