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 }
  29
  30 bool SketcherPrs_Middle::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
  31                                          const std::shared_ptr<GeomAPI_Ax3>&/* thePlane*/)
  32 {
  33   bool aReadyToDisplay = false;
  34
  35   ObjectPtr aObj1 = SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_A());
  36   ObjectPtr aObj2 = 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 = SketcherPrs_Tools::getAttribute(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  54   if (!anAttribute.get()) {
  55     ObjectPtr aObj = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  56     std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(aObj);
  57     if (aShape.get() && aShape->isEdge())
  58       aPointObject = aObj;
  59   }
  60   if (!aPointObject.get()) {
  61     ObjectPtr aObj = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
  62     std::shared_ptr<GeomAPI_Shape> aShape = SketcherPrs_Tools::getShape(aObj);
  63     if (aShape.get() && aShape->isEdge())
  64       aPointObject = aObj;
  65   }
  66
  67   if (!aPointObject.get())
  68     return false;
  69
  70   // Set points of the presentation
  71   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
  72   gp_Pnt aP1 = aMgr->getPosition(aPointObject, this, theStep);
  73   myPntArray->SetVertice(1, aP1);
  74   return true;
  75 }
  76
  77 void SketcherPrs_Middle::drawLines(const Handle(Prs3d_Presentation)& thePrs, Quantity_Color theColor) const
  78 {
  79   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePrs);
  80
  81   Handle(Graphic3d_AspectLine3d) aLineAspect = new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
  82   aGroup->SetPrimitivesAspect(aLineAspect);
  83
  84   // Draw objects
  85   ObjectPtr aObject = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  86   drawLine(thePrs, theColor, aObject);
  87
  88   aObject = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
  89   drawLine(thePrs, theColor, aObject);
  90 }
  91
  92 void SketcherPrs_Middle::drawLine(const Handle(Prs3d_Presentation)& thePrs,
  93                                   Quantity_Color theColor, const ObjectPtr& theObject) const
  94 {
  95   FeaturePtr aLineFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theObject);
  96   if (aLineFeature.get()) {
  97     std::list<ResultPtr> aResults = aLineFeature->results();
  98     if (aResults.size() == 1) {
  99       ResultPtr aResult = aResults.front();
 100       std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(aResult);
 101       if (aLine.get() != NULL)
 102         drawShape(aLine, thePrs);
 103     }
 104   }
 105   else {
 106     std::shared_ptr<GeomAPI_Shape> aLine = SketcherPrs_Tools::getShape(theObject);
 107     if (aLine.get() != NULL)
 108       drawShape(aLine, thePrs);
 109   }
 110 }
 111