X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2FSketcherPrs%2FSketcherPrs_Parallel.cpp;h=431c396b0e963cf83bc01735b5e8eaf0e1c9f3cb;hb=b522cce945722acb3c559c9046d9f647a32a633e;hp=e80fb8f784c387190422a6b109c45866e13302b5;hpb=cc84ddead2c5dcb864d24de04df60b378f750824;p=modules%2Fshaper.git

diff --git a/src/SketcherPrs/SketcherPrs_Parallel.cpp b/src/SketcherPrs/SketcherPrs_Parallel.cpp
index e80fb8f78..431c396b0 100644
--- a/src/SketcherPrs/SketcherPrs_Parallel.cpp
+++ b/src/SketcherPrs/SketcherPrs_Parallel.cpp
@@ -24,21 +24,34 @@ SketcherPrs_Parallel::SketcherPrs_Parallel(ModelAPI_Feature* theConstraint,
                                            const std::shared_ptr<GeomAPI_Ax3>& thePlane) 
  : SketcherPrs_SymbolPrs(theConstraint, thePlane)
 {
+  // Create default array
   myPntArray = new Graphic3d_ArrayOfPoints(2);
   myPntArray->AddVertex(0., 0., 0.);
   myPntArray->AddVertex(0., 0., 0.);
 }  
 
+bool SketcherPrs_Parallel::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_Parallel::updatePoints(double theStep) const
+bool SketcherPrs_Parallel::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 position of symbols
   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
   gp_Pnt aP1 = aMgr->getPosition(aObj1, this, theStep);
   gp_Pnt aP2 = aMgr->getPosition(aObj2, this, theStep);
@@ -55,6 +68,7 @@ void SketcherPrs_Parallel::drawLines(const Handle(Prs3d_Presentation)& thePrs, Q
   Handle(Graphic3d_AspectLine3d) aLineAspect = new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
   aGroup->SetPrimitivesAspect(aLineAspect);
 
+  // Draw constrained lines
   addLine(aGroup, SketchPlugin_Constraint::ENTITY_A());
   addLine(aGroup, SketchPlugin_Constraint::ENTITY_B());
 }