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1 | // Created on: 1991-06-13 |
2 | // Created by: Arnaud BOUZY |
3 | // Copyright (c) 1991-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | // distribution for complete text of the license and disclaimer of any warranty. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
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17 | |
18 | #include <Expr_GeneralExpression.hxx> |
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19 | #include <Expr_NamedUnknown.hxx> |
20 | #include <Expr_SystemRelation.hxx> |
21 | #include <Standard_DimensionMismatch.hxx> |
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22 | #include <Standard_NoSuchObject.hxx> |
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23 | #include <Standard_Type.hxx> |
24 | #include <TCollection_AsciiString.hxx> |
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25 | |
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26 | IMPLEMENT_STANDARD_RTTIEXT(Expr_SystemRelation,Expr_GeneralRelation) |
27 | |
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28 | Expr_SystemRelation::Expr_SystemRelation (const Handle(Expr_GeneralRelation)& relation) |
29 | { |
30 | myRelations.Append(relation); |
31 | } |
32 | |
33 | void Expr_SystemRelation::Add (const Handle(Expr_GeneralRelation)& relation) |
34 | { |
35 | myRelations.Append(relation); |
36 | } |
37 | |
38 | void Expr_SystemRelation::Remove (const Handle(Expr_GeneralRelation)& relation) |
39 | { |
40 | Standard_Integer position = 0; |
41 | Standard_Boolean alreadyHere = Standard_False; |
42 | |
43 | for (Standard_Integer i = 1; i <= myRelations.Length() && !alreadyHere; i++) { |
44 | if (myRelations.Value(i) == relation) { |
45 | alreadyHere = Standard_True; |
46 | position = i; |
47 | } |
48 | } |
49 | |
50 | if (alreadyHere) { |
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51 | throw Standard_NoSuchObject(); |
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52 | } |
53 | if (myRelations.Length() <= 1) { |
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54 | throw Standard_DimensionMismatch(); |
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55 | } |
56 | myRelations.Remove(position); |
57 | } |
58 | |
59 | Standard_Boolean Expr_SystemRelation::IsLinear () const |
60 | { |
61 | Standard_Integer len = myRelations.Length(); |
62 | for (Standard_Integer i = 1; i<= len; i++) { |
63 | if (!myRelations(i)->IsLinear()) { |
64 | return Standard_False; |
65 | } |
66 | } |
67 | return Standard_True; |
68 | } |
69 | |
70 | Standard_Boolean Expr_SystemRelation::Contains(const Handle(Expr_GeneralExpression)& exp) const |
71 | { |
72 | for (Standard_Integer i=1; i<= myRelations.Length(); i++) { |
73 | if (myRelations(i)->Contains(exp)) { |
74 | return Standard_True; |
75 | } |
76 | } |
77 | return Standard_False; |
78 | } |
79 | |
80 | void Expr_SystemRelation::Replace(const Handle(Expr_NamedUnknown)& var, const Handle(Expr_GeneralExpression)& with) |
81 | { |
82 | for (Standard_Integer i=1; i<= myRelations.Length(); i++) { |
83 | myRelations(i)->Replace(var,with); |
84 | } |
85 | } |
86 | |
87 | Standard_Integer Expr_SystemRelation::NbOfSubRelations () const |
88 | { |
89 | return myRelations.Length(); |
90 | } |
91 | |
92 | Handle(Expr_GeneralRelation) Expr_SystemRelation::SubRelation (const Standard_Integer index) const |
93 | { |
94 | return myRelations(index); |
95 | } |
96 | |
97 | Standard_Boolean Expr_SystemRelation::IsSatisfied () const |
98 | { |
99 | Standard_Integer len = myRelations.Length(); |
100 | for (Standard_Integer i = 1; i<= len; i++) { |
101 | if (!myRelations(i)->IsSatisfied()) { |
102 | return Standard_False; |
103 | } |
104 | } |
105 | return Standard_True; |
106 | } |
107 | |
108 | |
109 | Handle(Expr_GeneralRelation) Expr_SystemRelation::Simplified () const |
110 | { |
111 | Standard_Integer len = myRelations.Length(); |
112 | Handle(Expr_GeneralRelation) rel; |
113 | rel = myRelations(1); |
114 | Handle(Expr_SystemRelation) result = new Expr_SystemRelation(rel->Simplified()); |
115 | for (Standard_Integer i = 2; i<= len; i++) { |
116 | rel = myRelations(i); |
117 | rel = rel->Simplified(); |
118 | result->Add(rel); |
119 | } |
120 | return result; |
121 | } |
122 | |
123 | |
124 | |
125 | void Expr_SystemRelation::Simplify () |
126 | { |
127 | Standard_Integer len = myRelations.Length(); |
128 | Handle(Expr_GeneralRelation) rel; |
129 | for (Standard_Integer i = 1; i<= len; i++) { |
130 | rel = myRelations(i); |
131 | rel->Simplify(); |
132 | } |
133 | } |
134 | |
135 | Handle(Expr_GeneralRelation) Expr_SystemRelation::Copy () const |
136 | { |
137 | Handle(Expr_SystemRelation) cop = new Expr_SystemRelation(myRelations(1)->Copy()); |
138 | Standard_Integer len = myRelations.Length(); |
139 | for (Standard_Integer i = 2; i<= len; i++) { |
140 | cop->Add(myRelations(i)->Copy()); |
141 | } |
142 | return cop; |
143 | } |
144 | |
145 | Standard_Integer Expr_SystemRelation::NbOfSingleRelations() const |
146 | { |
147 | Standard_Integer nbsing = 0; |
148 | Standard_Integer nbrel = myRelations.Length(); |
149 | Handle(Expr_GeneralRelation) subrel; |
150 | for (Standard_Integer i = 1; i<= nbrel ; i++) { |
151 | subrel = myRelations(i); |
152 | nbsing = nbsing + subrel->NbOfSingleRelations(); |
153 | } |
154 | return nbsing; |
155 | } |
156 | |
157 | TCollection_AsciiString Expr_SystemRelation::String() const |
158 | { |
159 | Standard_Integer nbrel = myRelations.Length(); |
160 | Handle(Expr_GeneralRelation) subrel; |
161 | TCollection_AsciiString res; |
162 | for (Standard_Integer i = 1; i<= nbrel ; i++) { |
163 | res += myRelations(i)->String(); |
164 | if (i != nbrel) { |
165 | res += TCollection_AsciiString('\n'); |
166 | } |
167 | } |
168 | return res; |
169 | } |