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 =
  34     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_A());
  35   ObjectPtr aObj2 =
  36     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_B());
  37
  38   // one object is a feature Line, other object is a point result. We check shape of point result
  39   aReadyToDisplay = aObj1.get() && aObj2.get() &&
  40                     (SketcherPrs_Tools::getShape(aObj1).get() != NULL ||
  41                      SketcherPrs_Tools::getShape(aObj2).get() != NULL);
  42
  43   return aReadyToDisplay;
  44 }
  45
  46 bool SketcherPrs_Middle::updateIfReadyToDisplay(double theStep) const
  47 {
  48   if (!IsReadyToDisplay(myConstraint, myPlane))
  49     return false;
  50   ObjectPtr aPointObject;
  51
  52   // find a line result to set middle symbol near it
  53   AttributePtr anAttribute =
  54     SketcherPrs_Tools::getAttribute(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  55   if (!anAttribute.get()) {
  56     ObjectPtr aObj =
  57       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 =
  64       SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
  65     std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(aObj);
  66     if (aShape.get() && aShape->isEdge())
  67       aPointObject = aObj;
  68   }
  69
  70   if (!aPointObject.get())
  71     return false;
  72
  73   // Set points of the presentation
  74   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
  75   gp_Pnt aP1 = aMgr->getPosition(aPointObject, this, theStep);
  76   myPntArray->SetVertice(1, aP1);
  77   return true;
  78 }
  79
  80 void SketcherPrs_Middle::drawLines(const Handle(Prs3d_Presentation)& thePrs,
  81                                    Quantity_Color theColor) const
  82 {
  83   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePrs);
  84
  85   Handle(Graphic3d_AspectLine3d) aLineAspect =
  86     new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
  87   aGroup->SetPrimitivesAspect(aLineAspect);
  88
  89   // Draw objects
  90   ObjectPtr aObject =
  91     SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  92   drawLine(thePrs, theColor, aObject);
  93
  94   aObject = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  95   drawLine(thePrs, theColor, aObject);
  96 }
  97
  98 void SketcherPrs_Middle::drawLine(const Handle(Prs3d_Presentation)& thePrs,
  99                                   Quantity_Color theColor, const ObjectPtr& theObject) const
 100 {
 101   FeaturePtr aLineFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theObject);
 102   if (aLineFeature.get()) {
 103     std::list<ResultPtr> aResults = aLineFeature->results();
 104     if (aResults.size() == 1) {
 105       ResultPtr aResult = aResults.front();
 106       std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(aResult);
 107       if (aLine.get() != NULL)
 108         drawShape(aLine, thePrs);
 109     }
 110   }
 111   else {
 112     std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(theObject);
 113     if (aLine.get() != NULL)
 114       drawShape(aLine, thePrs);
 115   }
 116 }
 117