From: mpv <mpv@opencascade.com>
Date: Mon, 19 Jan 2015 16:40:36 +0000 (+0300)
Subject: Fix for crash of double-click in one point during creation of linear segment in a... 
X-Git-Tag: V_1.0.0~22^2~11
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=14c1cc7b41af18f9b90dbb6466253706115da4e0;p=modules%2Fshaper.git

Fix for crash of double-click in one point during creation of linear segment in a sketch
---

diff --git a/src/XGUI/XGUI_Displayer.cpp b/src/XGUI/XGUI_Displayer.cpp
index a8f9dcad9..8dd2d2e25 100644
--- a/src/XGUI/XGUI_Displayer.cpp
+++ b/src/XGUI/XGUI_Displayer.cpp
@@ -217,12 +217,14 @@ void XGUI_Displayer::redisplay(ObjectPtr theObject, bool isUpdateViewer)
       Handle(AIS_Shape) aShapePrs = Handle(AIS_Shape)::DownCast(aAISIO);
       if (!aShapePrs.IsNull()) {
         std::shared_ptr<GeomAPI_Shape> aShapePtr = ModelAPI_Tools::shape(aResult);
-        const TopoDS_Shape& aShape = aShapePrs->Shape();
-        std::shared_ptr<GeomAPI_Shape> anAISShapePtr(new GeomAPI_Shape());
-        anAISShapePtr->setImpl(new TopoDS_Shape(aShape));
+        if (aShapePtr.get()) {
+          const TopoDS_Shape& aShape = aShapePrs->Shape();
+          std::shared_ptr<GeomAPI_Shape> anAISShapePtr(new GeomAPI_Shape());
+          anAISShapePtr->setImpl(new TopoDS_Shape(aShape));
 
-        if (aShapePtr->isEqual(anAISShapePtr))
-          return;
+          if (aShapePtr->isEqual(anAISShapePtr))
+            return;
+        }
       }
     }
     aContext->Redisplay(aAISIO, false);