Issue #1303 Reordering menu items: Sketch action enable state

[modules/shaper.git] / src / SketcherPrs / SketcherPrs_Equal.cpp

diff --git a/src/SketcherPrs/SketcherPrs_Equal.cpp b/src/SketcherPrs/SketcherPrs_Equal.cpp
index f26682c3cae4603bccf4c216fc3f7c54691fc9a7..1a808f93587436409adcb27708e48097aa5f7b25 100644 (file)
--- a/src/SketcherPrs/SketcherPrs_Equal.cpp
+++ b/src/SketcherPrs/SketcherPrs_Equal.cpp
@@ -10,6 +10,8 @@
 
 #include <SketchPlugin_Constraint.h>
 
+#include "Events_Error.h"
+
 #include <Graphic3d_AspectLine3d.hxx>
 #include <Prs3d_Root.hxx>
 
@@ -28,15 +30,29 @@ SketcherPrs_Equal::SketcherPrs_Equal(ModelAPI_Feature* theConstraint,
   myPntArray->AddVertex(0., 0., 0.);
 }  
 
+bool SketcherPrs_Equal::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_Equal::updatePoints(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;
 
+  // Set points of the presentation
   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
   gp_Pnt aP1 = aMgr->getPosition(aObj1, this, theStep);
   gp_Pnt aP2 = aMgr->getPosition(aObj2, this, theStep);
@@ -52,7 +68,18 @@ void SketcherPrs_Equal::drawLines(const Handle(Prs3d_Presentation)& thePrs, Quan
   Handle(Graphic3d_AspectLine3d) aLineAspect = new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
   aGroup->SetPrimitivesAspect(aLineAspect);
 
-  addLine(aGroup, SketchPlugin_Constraint::ENTITY_A());
-  addLine(aGroup, SketchPlugin_Constraint::ENTITY_B());
+  // Draw first line
+  ObjectPtr aObj = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
+  std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(aObj);
+  if (aLine.get() == NULL)
+    return;
+  drawShape(aLine, thePrs);
+
+  // Draw second line
+  aObj = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
+  aLine = SketcherPrs_Tools::getShape(aObj);
+  if (aLine.get() == NULL)
+    return;
+  drawShape(aLine, thePrs);
 }