src/SketcherPrs/SketcherPrs_Middle.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        SketcherPrs_Middle.cpp
   4 // Created:     29 February 2016
   5 // Author:      Natalia ERMOLAEVA
   6
   7 #include "SketcherPrs_Middle.h"
   8 #include "SketcherPrs_Tools.h"
   9 #include "SketcherPrs_PositionMgr.h"
  10
  11 #include <SketchPlugin_Constraint.h>
  12
  13 #include "Events_Error.h"
  14
  15 #include <Graphic3d_AspectLine3d.hxx>
  16 #include <Prs3d_Root.hxx>
  17
  18
  19 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_Middle, SketcherPrs_SymbolPrs);
  20 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_Middle, SketcherPrs_SymbolPrs);
  21
  22 static Handle(Image_AlienPixMap) MyPixMap;
  23
  24 SketcherPrs_Middle::SketcherPrs_Middle(ModelAPI_Feature* theConstraint,
  25                                      const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  26  : SketcherPrs_SymbolPrs(theConstraint, thePlane)
  27 {
  28   myPntArray = new Graphic3d_ArrayOfPoints(2);
  29   myPntArray->AddVertex(0., 0., 0.);
  30 }
  31
  32 bool SketcherPrs_Middle::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
  33                                          const std::shared_ptr<GeomAPI_Ax3>&/* thePlane*/)
  34 {
  35   bool aReadyToDisplay = false;
  36
  37   ObjectPtr aObj1 = SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_A());
  38   ObjectPtr aObj2 = SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_B());
  39
  40   // one object is a feature Line, other object is a point result. We check shape of point result
  41   aReadyToDisplay = aObj1.get() && aObj2.get() &&
  42                     (SketcherPrs_Tools::getShape(aObj1).get() != NULL ||
  43                      SketcherPrs_Tools::getShape(aObj2).get() != NULL);
  44
  45   return aReadyToDisplay;
  46 }
  47
  48 bool SketcherPrs_Middle::updatePoints(double theStep) const
  49 {
  50   if (!IsReadyToDisplay(myConstraint, myPlane))
  51     return false;
  52   ObjectPtr aPointObject;
  53
  54   // find a line result to set middle symbol near it
  55   AttributePtr anAttribute = SketcherPrs_Tools::getAttribute(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  56   if (!anAttribute.get()) {
  57     ObjectPtr aObj = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  58     std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(aObj);
  59     if (aShape.get() && aShape->isEdge())
  60       aPointObject = aObj;
  61   }
  62   if (!aPointObject.get()) {
  63     ObjectPtr aObj = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
  64     std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(aObj);
  65     if (aShape.get() && aShape->isEdge())
  66       aPointObject = aObj;
  67   }
  68
  69   if (!aPointObject.get())
  70     return false;
  71
  72   // Set points of the presentation
  73   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
  74   gp_Pnt aP1 = aMgr->getPosition(aPointObject, this, theStep);
  75   myPntArray->SetVertice(1, aP1);
  76   return true;
  77 }
  78
  79 void SketcherPrs_Middle::drawLines(const Handle(Prs3d_Presentation)& thePrs, Quantity_Color theColor) const
  80 {
  81   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePrs);
  82
  83   Handle(Graphic3d_AspectLine3d) aLineAspect = new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
  84   aGroup->SetPrimitivesAspect(aLineAspect);
  85
  86   // Draw objects
  87   ObjectPtr aObject = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  88   drawLine(thePrs, theColor, aObject);
  89
  90   aObject = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  91   drawLine(thePrs, theColor, aObject);
  92 }
  93
  94 void SketcherPrs_Middle::drawLine(const Handle(Prs3d_Presentation)& thePrs,
  95                                   Quantity_Color theColor, const ObjectPtr& theObject) const
  96 {
  97   FeaturePtr aLineFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theObject);
  98   if (aLineFeature.get()) {
  99     std::list<ResultPtr> aResults = aLineFeature->results();
 100     if (aResults.size() == 1) {
 101       ResultPtr aResult = aResults.front();
 102       std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(aResult);
 103       if (aLine.get() != NULL)
 104         drawShape(aLine, thePrs);
 105     }
 106   }
 107   else {
 108     std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(theObject);
 109     if (aLine.get() != NULL)
 110       drawShape(aLine, thePrs);
 111   }
 112 }
 113