Support QGraphicsView autoscroll of a draged object.

--HG--
branch : develop

src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolbasepoint.cpp

@@ -153,6 +153,13 @@ QVariant VToolBasePoint::itemChange(QGraphicsItem::GraphicsItemChange change, co
             MoveSPoint *moveSP = new MoveSPoint(doc, newPos.x(), newPos.y(), id, this->scene());
             connect(moveSP, &MoveSPoint::NeedLiteParsing, doc, &VAbstractPattern::LiteParseTree);
             qApp->getUndoStack()->push(moveSP);
+            if (scene())
+            {
+                if (QGraphicsView *view = scene()->views().at(0))
+                {
+                    view->ensureVisible(this);
+                }
+            }
             changeFinished = true;
         }
     }

src/libs/vwidgets/vcontrolpointspline.cpp

@@ -29,6 +29,7 @@
 #include "vcontrolpointspline.h"
 
 #include <QGraphicsSceneMouseEvent>
+#include <QGraphicsView>
 #include <QPen>
 #include <QStyleOptionGraphicsItem>
 
@@ -129,6 +130,13 @@ QVariant VControlPointSpline::itemChange(QGraphicsItem::GraphicsItemChange chang
             // value - new position.
             QPointF newPos = value.toPointF();
             emit ControlPointChangePosition(indexSpline, position, newPos);
+            if (scene())
+            {
+                if (QGraphicsView *view = scene()->views().at(0))
+                {
+                    view->ensureVisible(this);
+                }
+            }
             changeFinished = false;
         }
     }

src/libs/vwidgets/vgraphicssimpletextitem.cpp

@@ -34,6 +34,7 @@
 #include <QGraphicsSceneMouseEvent>
 #include <QKeyEvent>
 #include <QGraphicsScene>
+#include <QGraphicsView>
 
 //---------------------------------------------------------------------------------------------------------------------
 /**
@@ -123,6 +124,13 @@ QVariant VGraphicsSimpleTextItem::itemChange(GraphicsItemChange change, const QV
             changeFinished = false;
             QPointF newPos = value.toPointF() + this->parentItem()->pos();
             emit NameChangePosition(newPos);
+            if (scene())
+            {
+                if (QGraphicsView *view = scene()->views().at(0))
+                {
+                    view->ensureVisible(this);
+                }
+            }
             changeFinished = true;
          }
      }

src/libs/vwidgets/vmaingraphicsview.h

@@ -125,8 +125,8 @@ public slots:
     void     ZoomOriginal();
     void     ZoomFitBest();
 protected:
-    void     mousePressEvent(QMouseEvent *mousePress);
+    virtual void mousePressEvent(QMouseEvent *mousePress) Q_DECL_OVERRIDE;
-    void     mouseReleaseEvent(QMouseEvent *event);
+    virtual void mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
 private:
     Q_DISABLE_COPY(VMainGraphicsView)
     GraphicsViewZoom* zoom;