src/ModuleBase/ModuleBase_ViewerPrs.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        ModuleBase_ViewerPrs.cpp
   4 // Created:     20 Apr 2014
   5 // Author:      Natalia ERMOLAEVA
   6
   7 #include "ModuleBase_ViewerPrs.h"
   8
   9 #include <ModuleBase_ResultPrs.h>
  10
  11 ModuleBase_ViewerPrs::ModuleBase_ViewerPrs(ObjectPtr theResult,
  12                                            const GeomShapePtr& theShape,
  13                                            Handle_SelectMgr_EntityOwner theOwner)
  14 : myResult(theResult),
  15   myShape(theShape),
  16   myOwner(theOwner)
  17 {
  18 }
  19
  20 ModuleBase_ViewerPrs::~ModuleBase_ViewerPrs()
  21 {
  22 }
  23
  24 bool ModuleBase_ViewerPrs::isEqual(ModuleBase_ViewerPrs* thePrs) const
  25 {
  26   if (!thePrs || thePrs->isEmpty())
  27     return false;
  28
  29   bool isEqualResult = (myResult.get() == thePrs->object().get());
  30   bool isEqualShape = (!myShape.get() && !thePrs->shape().get()) ||
  31                        (myShape.get() && myShape->isEqual(thePrs->shape()));
  32   bool isEqualIO = (myInteractive == thePrs->interactive()) == Standard_True;
  33
  34   bool isEqualOwner = myOwner.get() == thePrs->owner().get();
  35   if (isEqualResult && isEqualShape && isEqualIO &&
  36       !isEqualOwner) { /// owners are different
  37     // as we might loading object with the same shape in different modes like
  38     // "objects" and "other", it is possible that two owners are created linked
  39     // to one shape. We should accept such ViewerPrs as equal to current in order
  40     // to do not use the same <result, shape> twice
  41     Handle(StdSelect_BRepOwner) anOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
  42     Handle(StdSelect_BRepOwner) anOwner2 = Handle(StdSelect_BRepOwner)::DownCast(thePrs->owner());
  43     if (!anOwner1.IsNull() && !anOwner2.IsNull())
  44       isEqualOwner = (anOwner1->Shape().IsNull() && anOwner2->Shape().IsNull()) ||
  45                       anOwner1->Shape().IsEqual(anOwner2->Shape());
  46   }
  47
  48   if (isEqualResult && isEqualShape &&
  49       !isEqualIO) { /// AIS are different
  50     // check that the owner is a fictive owner for compsolid object, created in the
  51     // ComputeSelection of ModuleBase_ResultPrs. A new owner is created there for each subsolid
  52     // and set in the sub-solid AIS. ViewerPrs of these fictive owners are accepted as equal
  53     // as they use the same shape and result(of compsolid)
  54     Handle(StdSelect_BRepOwner) aCSolidOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
  55     Handle(StdSelect_BRepOwner) aCSolidOwner2 =
  56       Handle(StdSelect_BRepOwner)::DownCast(thePrs->owner());
  57     isEqualIO = !aCSolidOwner1.IsNull() && !aCSolidOwner2.IsNull();
  58     if (!aCSolidOwner1.IsNull() && !aCSolidOwner2.IsNull())
  59       isEqualOwner = (aCSolidOwner1->Shape().IsNull() && aCSolidOwner2->Shape().IsNull()) ||
  60                       aCSolidOwner1->Shape().IsEqual(aCSolidOwner2->Shape());
  61   }
  62
  63   return isEqualResult && isEqualShape && isEqualOwner && isEqualIO;
  64 }
  65
  66 bool ModuleBase_ViewerPrs::operator==(const ModuleBase_ViewerPrs& thePrs)
  67 {
  68   if (thePrs.isEmpty())
  69     return false;
  70
  71   bool isEqualResult = (myResult.get() == thePrs.object().get());
  72   bool isEqualShape = (!myShape.get() && !thePrs.shape().get()) ||
  73                        (myShape.get() && myShape->isEqual(thePrs.shape()));
  74   bool isEqualIO = (myInteractive == thePrs.interactive()) == Standard_True;
  75
  76   bool isEqualOwner = myOwner.get() == thePrs.owner().get();
  77   if (isEqualResult && isEqualShape && isEqualIO &&
  78       !isEqualOwner) { /// owners are different
  79     // as we might loading object with the same shape in different modes like
  80     // "objects" and "other", it is possible that two owners are created linked
  81     // to one shape. We should accept such ViewerPrs as equal to current in order
  82     // to do not use the same <result, shape> twice
  83     Handle(StdSelect_BRepOwner) anOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
  84     Handle(StdSelect_BRepOwner) anOwner2 = Handle(StdSelect_BRepOwner)::DownCast(thePrs.owner());
  85     if (!anOwner1.IsNull() && !anOwner2.IsNull())
  86       isEqualOwner = (anOwner1->Shape().IsNull() && anOwner2->Shape().IsNull()) ||
  87                       anOwner1->Shape().IsEqual(anOwner2->Shape());
  88   }
  89
  90   if (isEqualResult && isEqualShape &&
  91       !isEqualIO) { /// AIS are different
  92     // check that the owner is a fictive owner for compsolid object, created in the
  93     // ComputeSelection of ModuleBase_ResultPrs. A new owner is created there for each subsolid
  94     // and set in the sub-solid AIS. ViewerPrs of these fictive owners are accepted as equal
  95     // as they use the same shape and result(of compsolid)
  96     Handle(StdSelect_BRepOwner) aCSolidOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
  97     Handle(StdSelect_BRepOwner) aCSolidOwner2 =
  98       Handle(StdSelect_BRepOwner)::DownCast(thePrs.owner());
  99     isEqualIO = !aCSolidOwner1.IsNull() && !aCSolidOwner2.IsNull();
 100     if (!aCSolidOwner1.IsNull() && !aCSolidOwner1.IsNull())
 101       isEqualOwner = (aCSolidOwner1->Shape().IsNull() && aCSolidOwner2->Shape().IsNull()) ||
 102                       aCSolidOwner1->Shape().IsEqual(aCSolidOwner2->Shape());
 103   }
 104
 105   return isEqualResult && isEqualShape && isEqualOwner && isEqualIO;
 106 }