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[modules/shaper.git] / src / ModuleBase / ModuleBase_ViewerPrs.cpp
1 // Copyright (C) 2014-2017  CEA/DEN, EDF R&D
2 //
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
7 //
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
11 // Lesser General Public License for more details.
12 //
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 //
17 // See http://www.salome-platform.org/ or
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
19 //
20
21 #include "ModuleBase_ViewerPrs.h"
22
23 #include <ModuleBase_ResultPrs.h>
24 #include <StdSelect_BRepOwner.hxx>
25
26 ModuleBase_ViewerPrs::ModuleBase_ViewerPrs(ObjectPtr theResult,
27                                            const GeomShapePtr& theShape,
28                                            Handle_SelectMgr_EntityOwner theOwner)
29 : myResult(theResult),
30   myShape(theShape),
31   myOwner(theOwner)
32 {
33 }
34
35 ModuleBase_ViewerPrs::~ModuleBase_ViewerPrs()
36 {
37 }
38
39 bool ModuleBase_ViewerPrs::isEqual(ModuleBase_ViewerPrs* thePrs) const
40 {
41   if (!thePrs || thePrs->isEmpty())
42     return false;
43
44   bool isEqualResult = (myResult.get() == thePrs->object().get());
45   bool isEqualShape = (!myShape.get() && !thePrs->shape().get()) ||
46                        (myShape.get() && myShape->isEqual(thePrs->shape()));
47   bool isEqualIO = (myInteractive == thePrs->interactive()) == Standard_True;
48
49   bool isEqualOwner = myOwner.get() == thePrs->owner().get();
50   if (isEqualResult && isEqualShape && isEqualIO &&
51       !isEqualOwner) { /// owners are different
52     // as we might loading object with the same shape in different modes like
53     // "objects" and "other", it is possible that two owners are created linked
54     // to one shape. We should accept such ViewerPrs as equal to current in order
55     // to do not use the same <result, shape> twice
56     Handle(StdSelect_BRepOwner) anOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
57     Handle(StdSelect_BRepOwner) anOwner2 = Handle(StdSelect_BRepOwner)::DownCast(thePrs->owner());
58     if (!anOwner1.IsNull() && !anOwner2.IsNull())
59       isEqualOwner = (anOwner1->Shape().IsNull() && anOwner2->Shape().IsNull()) ||
60                       anOwner1->Shape().IsEqual(anOwner2->Shape());
61   }
62
63   if (isEqualResult && isEqualShape &&
64       !isEqualIO) { /// AIS are different
65     // check that the owner is a fictive owner for compsolid object, created in the
66     // ComputeSelection of ModuleBase_ResultPrs. A new owner is created there for each subsolid
67     // and set in the sub-solid AIS. ViewerPrs of these fictive owners are accepted as equal
68     // as they use the same shape and result(of compsolid)
69     Handle(StdSelect_BRepOwner) aCSolidOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
70     Handle(StdSelect_BRepOwner) aCSolidOwner2 =
71       Handle(StdSelect_BRepOwner)::DownCast(thePrs->owner());
72     isEqualIO = !aCSolidOwner1.IsNull() && !aCSolidOwner2.IsNull();
73     if (!aCSolidOwner1.IsNull() && !aCSolidOwner2.IsNull())
74       isEqualOwner = (aCSolidOwner1->Shape().IsNull() && aCSolidOwner2->Shape().IsNull()) ||
75                       aCSolidOwner1->Shape().IsEqual(aCSolidOwner2->Shape());
76   }
77
78   return isEqualResult && isEqualShape && isEqualOwner && isEqualIO;
79 }
80
81 bool ModuleBase_ViewerPrs::operator==(const ModuleBase_ViewerPrs& thePrs)
82 {
83   if (thePrs.isEmpty())
84     return false;
85
86   bool isEqualResult = (myResult.get() == thePrs.object().get());
87   bool isEqualShape = (!myShape.get() && !thePrs.shape().get()) ||
88                        (myShape.get() && myShape->isEqual(thePrs.shape()));
89   bool isEqualIO = (myInteractive == thePrs.interactive()) == Standard_True;
90
91   bool isEqualOwner = myOwner.get() == thePrs.owner().get();
92   if (isEqualResult && isEqualShape && isEqualIO &&
93       !isEqualOwner) { /// owners are different
94     // as we might loading object with the same shape in different modes like
95     // "objects" and "other", it is possible that two owners are created linked
96     // to one shape. We should accept such ViewerPrs as equal to current in order
97     // to do not use the same <result, shape> twice
98     Handle(StdSelect_BRepOwner) anOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
99     Handle(StdSelect_BRepOwner) anOwner2 = Handle(StdSelect_BRepOwner)::DownCast(thePrs.owner());
100     if (!anOwner1.IsNull() && !anOwner2.IsNull())
101       isEqualOwner = (anOwner1->Shape().IsNull() && anOwner2->Shape().IsNull()) ||
102                       anOwner1->Shape().IsEqual(anOwner2->Shape());
103   }
104
105   if (isEqualResult && isEqualShape &&
106       !isEqualIO) { /// AIS are different
107     // check that the owner is a fictive owner for compsolid object, created in the
108     // ComputeSelection of ModuleBase_ResultPrs. A new owner is created there for each subsolid
109     // and set in the sub-solid AIS. ViewerPrs of these fictive owners are accepted as equal
110     // as they use the same shape and result(of compsolid)
111     Handle(StdSelect_BRepOwner) aCSolidOwner1 = Handle(StdSelect_BRepOwner)::DownCast(myOwner);
112     Handle(StdSelect_BRepOwner) aCSolidOwner2 =
113       Handle(StdSelect_BRepOwner)::DownCast(thePrs.owner());
114     isEqualIO = !aCSolidOwner1.IsNull() && !aCSolidOwner2.IsNull();
115     if (!aCSolidOwner1.IsNull() && !aCSolidOwner1.IsNull())
116       isEqualOwner = (aCSolidOwner1->Shape().IsNull() && aCSolidOwner2->Shape().IsNull()) ||
117                       aCSolidOwner1->Shape().IsEqual(aCSolidOwner2->Shape());
118   }
119
120   return isEqualResult && isEqualShape && isEqualOwner && isEqualIO;
121 }