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Issue #2998: Add help description for automatic creation of constraints
[modules/shaper.git] / src / ModuleBase / ModuleBase_ViewerPrs.cpp
index 43b584bdbf67370ef90f271d031edb1ed798acf7..f41bd4bfc514285237d805a39658e4acdeb2a9c4 100644 (file)
@@ -1,16 +1,30 @@
-// Copyright (C) 2014-20xx CEA/DEN, EDF R&D
-
-// File:        ModuleBase_ViewerPrs.cpp
-// Created:     20 Apr 2014
-// Author:      Natalia ERMOLAEVA
+// Copyright (C) 2014-2019  CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
 
 #include "ModuleBase_ViewerPrs.h"
 
 #include <ModuleBase_ResultPrs.h>
+#include <StdSelect_BRepOwner.hxx>
 
-ModuleBase_ViewerPrs::ModuleBase_ViewerPrs(ObjectPtr theResult, 
-                                           const GeomShapePtr& theShape, 
-                                           Handle_SelectMgr_EntityOwner theOwner) 
+ModuleBase_ViewerPrs::ModuleBase_ViewerPrs(ObjectPtr theResult,
+                                           const GeomShapePtr& theShape,
+                                           Handle(SelectMgr_EntityOwner) theOwner)
 : myResult(theResult),
   myShape(theShape),
   myOwner(theOwner)
@@ -21,14 +35,59 @@ ModuleBase_ViewerPrs::~ModuleBase_ViewerPrs()
 {
 }
 
+bool ModuleBase_ViewerPrs::isEqual(ModuleBase_ViewerPrs* thePrs) const
+{
+  if (!thePrs || thePrs->isEmpty())
+    return false;
+
+  bool isEqualResult = (myResult.get() == thePrs->object().get());
+  bool isEqualShape = (!myShape.get() && !thePrs->shape().get()) ||
+                       (myShape.get() && myShape->isEqual(thePrs->shape()));
+  bool isEqualIO = (myInteractive == thePrs->interactive()) == Standard_True;
+
+  bool isEqualOwner = myOwner.get() == thePrs->owner().get();
+  if (isEqualResult && isEqualShape && isEqualIO &&
+      !isEqualOwner) { /// owners are different
+    // as we might loading object with the same shape in different modes like
+    // "objects" and "other", it is possible that two owners are created linked
+    // to one shape. We should accept such ViewerPrs as equal to current in order
+    // to do not use the same <result, shape> twice
+    Handle(StdSelect_BRepOwner) anOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
+    Handle(StdSelect_BRepOwner) anOwner2 = Handle(StdSelect_BRepOwner)::DownCast(thePrs->owner());
+    if (!anOwner1.IsNull() && !anOwner2.IsNull())
+      isEqualOwner = (anOwner1->Shape().IsNull() && anOwner2->Shape().IsNull()) ||
+                      anOwner1->Shape().IsEqual(anOwner2->Shape());
+  }
+
+  if (isEqualResult && isEqualShape &&
+      !isEqualIO) { /// AIS are different
+    // check that the owner is a fictive owner for compsolid object, created in the
+    // ComputeSelection of ModuleBase_ResultPrs. A new owner is created there for each subsolid
+    // and set in the sub-solid AIS. ViewerPrs of these fictive owners are accepted as equal
+    // as they use the same shape and result(of compsolid)
+    Handle(StdSelect_BRepOwner) aCSolidOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
+    Handle(StdSelect_BRepOwner) aCSolidOwner2 =
+      Handle(StdSelect_BRepOwner)::DownCast(thePrs->owner());
+    isEqualIO = !aCSolidOwner1.IsNull() && !aCSolidOwner2.IsNull();
+    if (!aCSolidOwner1.IsNull() && !aCSolidOwner2.IsNull())
+      isEqualOwner = (aCSolidOwner1->Shape().IsNull() && aCSolidOwner2->Shape().IsNull()) ||
+                      aCSolidOwner1->Shape().IsEqual(aCSolidOwner2->Shape());
+  }
+
+  return isEqualResult && isEqualShape && isEqualOwner && isEqualIO;
+}
+
 bool ModuleBase_ViewerPrs::operator==(const ModuleBase_ViewerPrs& thePrs)
 {
+  if (thePrs.isEmpty())
+    return false;
+
   bool isEqualResult = (myResult.get() == thePrs.object().get());
   bool isEqualShape = (!myShape.get() && !thePrs.shape().get()) ||
                        (myShape.get() && myShape->isEqual(thePrs.shape()));
   bool isEqualIO = (myInteractive == thePrs.interactive()) == Standard_True;
 
-  bool isEqualOwner = (myOwner.Access() == thePrs.owner().Access());
+  bool isEqualOwner = myOwner.get() == thePrs.owner().get();
   if (isEqualResult && isEqualShape && isEqualIO &&
       !isEqualOwner) { /// owners are different
     // as we might loading object with the same shape in different modes like
@@ -48,8 +107,9 @@ bool ModuleBase_ViewerPrs::operator==(const ModuleBase_ViewerPrs& thePrs)
     // ComputeSelection of ModuleBase_ResultPrs. A new owner is created there for each subsolid
     // and set in the sub-solid AIS. ViewerPrs of these fictive owners are accepted as equal
     // as they use the same shape and result(of compsolid)
-    Handle(ModuleBase_BRepOwner) aCSolidOwner1 = Handle(ModuleBase_BRepOwner)::DownCast(myOwner);
-    Handle(ModuleBase_BRepOwner) aCSolidOwner2 = Handle(ModuleBase_BRepOwner)::DownCast(thePrs.owner());
+    Handle(StdSelect_BRepOwner) aCSolidOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
+    Handle(StdSelect_BRepOwner) aCSolidOwner2 =
+      Handle(StdSelect_BRepOwner)::DownCast(thePrs.owner());
     isEqualIO = !aCSolidOwner1.IsNull() && !aCSolidOwner2.IsNull();
     if (!aCSolidOwner1.IsNull() && !aCSolidOwner1.IsNull())
       isEqualOwner = (aCSolidOwner1->Shape().IsNull() && aCSolidOwner2->Shape().IsNull()) ||