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1 | // Created on: 1992-05-14 |
| 2 | // Created by: NW,JPB,CAL |
| 3 | // Copyright (c) 1992-1999 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 |
| 9 | // under the terms of the GNU Lesser General Public version 2.1 as published |
| 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 | |
| 17 | //-Version |
| 18 | |
| 19 | //-Design Declaration des variables specifiques aux identificateurs |
| 20 | |
| 21 | //-Warning Un identificateur est un entier. |
| 22 | |
| 23 | //-References |
| 24 | |
| 25 | //-Language C++ 2.0 |
| 26 | |
| 27 | //-Declarations |
| 28 | |
| 29 | // for the class |
| 30 | #include <Aspect_GenId.ixx> |
| 31 | |
| 32 | //-Aliases |
| 33 | |
| 34 | //-Global data definitions |
| 35 | |
| 36 | //-Constructors |
| 37 | |
| 38 | //-Destructors |
| 39 | |
| 40 | //-Methods, in order |
| 41 | |
| 42 | Aspect_GenId::Aspect_GenId (): |
| 43 | |
| 44 | MyCount (INT_MAX/2 + 1), |
| 45 | MyLength (INT_MAX/2 + 1), |
| 46 | MyLowerBound (0), |
| 47 | MyUpperBound (INT_MAX/2), |
| 48 | MyFreeIds () { |
| 49 | |
| 50 | } |
| 51 | |
| 52 | Aspect_GenId::Aspect_GenId (const Standard_Integer Low, const Standard_Integer Up):MyFreeIds () { |
| 53 | |
| 54 | if (Low <= Up) { |
| 55 | MyLowerBound = Low; |
| 56 | MyUpperBound = Up; |
| 57 | MyLength = MyUpperBound - MyLowerBound + 1; |
| 58 | MyCount = MyLength; |
| 59 | } |
| 60 | else |
| 61 | Aspect_IdentDefinitionError::Raise |
| 62 | ("GenId Create Error: Low > Up"); |
| 63 | |
| 64 | } |
| 65 | |
| 66 | Standard_Integer Aspect_GenId::Available () const { |
| 67 | |
| 68 | return (MyCount); |
| 69 | |
| 70 | } |
| 71 | |
| 72 | void Aspect_GenId::Free () { |
| 73 | |
| 74 | MyCount = MyLength; |
| 75 | MyFreeIds.Clear (); |
| 76 | |
| 77 | } |
| 78 | |
| 79 | void Aspect_GenId::Free (const Standard_Integer Id) { |
| 80 | |
| 81 | if ( (Id >= MyLowerBound) && (Id <= MyUpperBound) ) |
| 82 | MyFreeIds.Prepend (Id); |
| 83 | |
| 84 | } |
| 85 | |
| 86 | Standard_Integer Aspect_GenId::Lower () const { |
| 87 | |
| 88 | return (MyLowerBound); |
| 89 | |
| 90 | } |
| 91 | |
| 92 | Standard_Integer Aspect_GenId::Next () { |
| 93 | |
| 94 | if (MyCount == 0) |
| 95 | Aspect_IdentDefinitionError::Raise |
| 96 | ("GenId Next Error: Available == 0"); |
| 97 | |
| 98 | Standard_Integer Id; |
| 99 | |
| 100 | if (! MyFreeIds.IsEmpty ()) { |
| 101 | Id = MyFreeIds.First (); |
| 102 | MyFreeIds.RemoveFirst (); |
| 103 | } |
| 104 | else { |
| 105 | MyCount --; |
| 106 | Id = MyLowerBound + MyLength - MyCount - 1; |
| 107 | } |
| 108 | |
| 109 | return Id; |
| 110 | |
| 111 | } |
| 112 | |
| 113 | Standard_Integer Aspect_GenId::Upper () const { |
| 114 | |
| 115 | return (MyUpperBound); |
| 116 | |
| 117 | } |
| 118 | |
| 119 | //void Aspect_GenId::Assign (const Aspect_GenId& Other) { |
| 120 | // |
| 121 | // MyLowerBound = Other.Lower (); |
| 122 | // MyUpperBound = Other.Upper (); |
| 123 | // |
| 124 | //} |
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