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