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42cf5bc1ca
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl": - WOK-generated header files from inc and sources from drv are moved to src - CDL files removed - All packages are converted to nocdlpack
140 lines
4.0 KiB
C++
140 lines
4.0 KiB
C++
// Created on: 1992-05-14
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// Created by: NW,JPB,CAL
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// Copyright (c) 1992-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <Aspect_GenId.hxx>
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#include <Aspect_IdentDefinitionError.hxx>
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// =======================================================================
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// function : Aspect_GenId
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// purpose :
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// =======================================================================
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Aspect_GenId::Aspect_GenId()
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: myFreeCount (INT_MAX / 2 + 1),
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myLength (INT_MAX / 2 + 1),
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myLowerBound (0),
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myUpperBound (INT_MAX / 2)
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{
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//
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}
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// =======================================================================
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// function : Aspect_GenId
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// purpose :
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// =======================================================================
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Aspect_GenId::Aspect_GenId (const Standard_Integer theLow,
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const Standard_Integer theUpper)
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: myFreeCount (theUpper - theLow + 1),
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myLength (theUpper - theLow + 1),
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myLowerBound (theLow),
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myUpperBound (theUpper)
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{
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if (theLow > theUpper)
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{
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Aspect_IdentDefinitionError::Raise ("GenId Create Error: wrong interval");
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}
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}
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// =======================================================================
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// function : HasFree
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// purpose :
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// =======================================================================
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Standard_Boolean Aspect_GenId::HasFree() const
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{
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return myFreeCount > 0
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|| myFreeIds.Extent() > 0;
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}
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// =======================================================================
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// function : Available
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// purpose :
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// =======================================================================
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Standard_Integer Aspect_GenId::Available() const
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{
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return myFreeCount + myFreeIds.Extent();
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}
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// =======================================================================
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// function : Free
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// purpose :
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// =======================================================================
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void Aspect_GenId::Free()
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{
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myFreeCount = myLength;
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myFreeIds.Clear();
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}
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// =======================================================================
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// function : Free
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// purpose :
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// =======================================================================
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void Aspect_GenId::Free (const Standard_Integer theId)
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{
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if (theId >= myLowerBound
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&& theId <= myUpperBound)
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{
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if (myFreeCount + myFreeIds.Extent() + 1 == myLength)
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{
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myFreeCount = myLength;
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myFreeIds.Clear();
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}
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else
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{
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myFreeIds.Prepend (theId);
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}
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}
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}
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// =======================================================================
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// function : Lower
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// purpose :
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// =======================================================================
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Standard_Integer Aspect_GenId::Lower() const
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{
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return myLowerBound;
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}
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// =======================================================================
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// function : Next
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// purpose :
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// =======================================================================
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Standard_Integer Aspect_GenId::Next()
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{
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if (!myFreeIds.IsEmpty())
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{
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const Standard_Integer anId = myFreeIds.First();
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myFreeIds.RemoveFirst();
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return anId;
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}
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else if (myFreeCount < 1)
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{
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Aspect_IdentDefinitionError::Raise ("GenId Next Error: Available == 0");
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}
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--myFreeCount;
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const Standard_Integer anId = myLowerBound + myLength - myFreeCount - 1;
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return anId;
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}
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// =======================================================================
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// function : Upper
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// purpose :
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// =======================================================================
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Standard_Integer Aspect_GenId::Upper() const
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{
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return myUpperBound;
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}
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