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_RTTIEXT(SketcherPrs_Middle, SketcherPrs_SymbolPrs);
  18
  19 static Handle(Image_AlienPixMap) MyPixMap;
  20
  21 SketcherPrs_Middle::SketcherPrs_Middle(ModelAPI_Feature* theConstraint,
  22                                      const std::shared_ptr<GeomAPI_Ax3>& thePlane)
  23  : SketcherPrs_SymbolPrs(theConstraint, thePlane)
  24 {
  25 }
  26
  27 bool SketcherPrs_Middle::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
  28                                          const std::shared_ptr<GeomAPI_Ax3>&/* thePlane*/)
  29 {
  30   bool aReadyToDisplay = false;
  31
  32   ObjectPtr aObj1 =
  33     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_A());
  34   ObjectPtr aObj2 =
  35     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_B());
  36
  37   // one object is a feature Line, other object is a point result. We check shape of point result
  38   aReadyToDisplay = aObj1.get() && aObj2.get() &&
  39                     (SketcherPrs_Tools::getShape(aObj1).get() != NULL ||
  40                      SketcherPrs_Tools::getShape(aObj2).get() != NULL);
  41
  42   return aReadyToDisplay;
  43 }
  44
  45 bool SketcherPrs_Middle::updateIfReadyToDisplay(double theStep) const
  46 {
  47   if (!IsReadyToDisplay(myConstraint, myPlane))
  48     return false;
  49   ObjectPtr aPointObject;
  50
  51   // find a line result to set middle symbol near it
  52   AttributePtr anAttribute =
  53     SketcherPrs_Tools::getAttribute(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  54   if (!anAttribute.get()) {
  55     ObjectPtr aObj =
  56       SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  57     std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(aObj);
  58     if (aShape.get() && aShape->isEdge())
  59       aPointObject = aObj;
  60   }
  61   if (!aPointObject.get()) {
  62     ObjectPtr aObj =
  63       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,
  80                                    Quantity_Color theColor) const
  81 {
  82   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePrs);
  83
  84   Handle(Graphic3d_AspectLine3d) aLineAspect =
  85     new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
  86   aGroup->SetPrimitivesAspect(aLineAspect);
  87
  88   // Draw objects
  89   ObjectPtr aObject =
  90     SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  91   drawLine(thePrs, theColor, aObject);
  92
  93   aObject = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  94   drawLine(thePrs, theColor, aObject);
  95 }
  96
  97 void SketcherPrs_Middle::drawLine(const Handle(Prs3d_Presentation)& thePrs,
  98                                   Quantity_Color theColor, const ObjectPtr& theObject) const
  99 {
 100   FeaturePtr aLineFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theObject);
 101   if (aLineFeature.get()) {
 102     std::list<ResultPtr> aResults = aLineFeature->results();
 103     if (aResults.size() == 1) {
 104       ResultPtr aResult = aResults.front();
 105       std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(aResult);
 106       if (aLine.get() != NULL)
 107         drawShape(aLine, thePrs);
 108     }
 109   }
 110   else {
 111     std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(theObject);
 112     if (aLine.get() != NULL)
 113       drawShape(aLine, thePrs);
 114   }
 115 }
 116