X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSketcherPrs%2FSketcherPrs_Tangent.cpp;h=09fa6810969a7673009619641eac5509701e2d34;hb=c1d1f617a04aacf5f0d6246c1b8dea72dd2d6093;hp=199eb782f8161ff7123909e695805e648292752e;hpb=27395bd5e5213d1c479d87191379515e2e60912c;p=modules%2Fshaper.git

diff --git a/src/SketcherPrs/SketcherPrs_Tangent.cpp b/src/SketcherPrs/SketcherPrs_Tangent.cpp
index 199eb782f..09fa68109 100644
--- a/src/SketcherPrs/SketcherPrs_Tangent.cpp
+++ b/src/SketcherPrs/SketcherPrs_Tangent.cpp
@@ -27,20 +27,35 @@ SketcherPrs_Tangent::SketcherPrs_Tangent(ModelAPI_Feature* theConstraint,
                                            const std::shared_ptr<GeomAPI_Ax3>& thePlane) 
  : SketcherPrs_SymbolPrs(theConstraint, thePlane)
 {
+  // Init default points
   myPntArray = new Graphic3d_ArrayOfPoints(2);
   myPntArray->AddVertex(0., 0., 0.);
   myPntArray->AddVertex(0., 0., 0.);
 }  
 
-bool SketcherPrs_Tangent::updatePoints(double theStep) const
+bool SketcherPrs_Tangent::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
+                                           const std::shared_ptr<GeomAPI_Ax3>&/* thePlane*/)
 {
+  bool aReadyToDisplay = false;
+
+  ObjectPtr aObj1 = SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_A());
+  ObjectPtr aObj2 = SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_B());
+
+  aReadyToDisplay = SketcherPrs_Tools::getShape(aObj1).get() != NULL &&
+                    SketcherPrs_Tools::getShape(aObj2).get() != NULL;
+
+  return aReadyToDisplay;
+}
+
+bool SketcherPrs_Tangent::updateIfReadyToDisplay(double theStep) const
+{
+  if (!IsReadyToDisplay(myConstraint, myPlane))
+    return false;
+
   ObjectPtr aObj1 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
   ObjectPtr aObj2 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
-  if (SketcherPrs_Tools::getShape(aObj1).get() == NULL)
-    return false;
-  if (SketcherPrs_Tools::getShape(aObj2).get() == NULL)
-    return false;
 
+  // Compute points coordinates
   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
   gp_Pnt aP1 = aMgr->getPosition(aObj1, this, theStep);
   gp_Pnt aP2 = aMgr->getPosition(aObj2, this, theStep);