inc/glxid.inl
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 19 Mar 2010 09:28:59 +0200
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permissions -rw-r--r--
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/*
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:   Type-safe unique id template
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*
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*/
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#include "glxpanic.h"
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const TUint KGlxInvalidIdValue = KMaxTUint;
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// -----------------------------------------------------------------------------
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// Default constructor
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TGlxId<T>::TGlxId() 
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    { 
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    iIdValue = KGlxInvalidIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Constructor
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TGlxId<T>::TGlxId(const TGlxId<T>& aId) 
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    { 
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    iIdValue = aId.iIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Constructor
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TGlxId<T>::TGlxId(TUint aIdValue) 
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    { 
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    __ASSERT_DEBUG(aIdValue != KGlxInvalidIdValue, Panic(EGlxPanicIllegalArgument)); 
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    iIdValue = aIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Constructor
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TGlxId<T>::TGlxId(const TGlxIdNone&) 
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    { 
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    iIdValue = KGlxInvalidIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Assignment, checks for invalid value
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TGlxId<T>& TGlxId<T>::operator=(const TGlxId<T>& aId) 
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    { 
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    __ASSERT_DEBUG(aId.iIdValue != KGlxInvalidIdValue, Panic(EGlxPanicIllegalArgument)); // Use SetValue to set undefined value
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    iIdValue = aId.iIdValue; 
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    return *this; 
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    }
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// -----------------------------------------------------------------------------
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// Assignment, checks for invalid value
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TGlxId<T>& TGlxId<T>::operator=(TUint aIdValue) 
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    { 
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    __ASSERT_DEBUG(aIdValue != KGlxInvalidIdValue, Panic(EGlxPanicIllegalArgument)); 
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    iIdValue = aIdValue; 
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    return *this; 
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    }
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// -----------------------------------------------------------------------------
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// Assignment 
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TGlxId<T>& TGlxId<T>::operator=(const TGlxIdNone&) 
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    { 
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    iIdValue = KGlxInvalidIdValue;  
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    return *this; 
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    }
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// -----------------------------------------------------------------------------
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// Post-increment
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TGlxId<T> TGlxId<T>::operator++(int) 
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    { 
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    TUint value = iIdValue;
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    iIdValue++; 
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    return TGlxId<T>(value); 
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    }
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// -----------------------------------------------------------------------------
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// Comparison
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TBool TGlxId<T>::operator!=(const TGlxId<T>& aId) const 
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    { 
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    return iIdValue != aId.iIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Comparison
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TBool TGlxId<T>::operator==(const TGlxId<T>& aId) const 
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    { 
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    return iIdValue == aId.iIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Comparison
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TBool TGlxId<T>::operator!=(const TGlxIdNone&) const 
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    { 
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    return iIdValue != KGlxInvalidIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Comparison
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TBool TGlxId<T>::operator==(const TGlxIdNone&) const 
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    { 
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    return iIdValue == KGlxInvalidIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Comparison
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TBool TGlxId<T>::operator>(const TGlxId<T>& aId) const 
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    { 
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    return iIdValue > aId.iIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Comparison
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TBool TGlxId<T>::operator<(const TGlxId<T>& aId) const 
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    { 
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    return iIdValue < aId.iIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Returns current value 
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline TUint TGlxId<T>::Value() const 
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    { 
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    return iIdValue; 
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    }
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// -----------------------------------------------------------------------------
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// Allows setting undefined as value
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// -----------------------------------------------------------------------------
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//
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template <class T> 
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inline void TGlxId<T>::SetValue(TUint aIdValue) 
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    { 
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    iIdValue = aIdValue; 
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    }
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/**
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 * TGlxDefaultIdProvider
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 * Simple implementation of id provider
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 */ 
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// -----------------------------------------------------------------------------
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// Allows setting undefined as value
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// -----------------------------------------------------------------------------
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//
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template <class T>
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TGlxDefaultIdProvider<T>::TGlxDefaultIdProvider() 
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    { 
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    iNextIdValue = 0; 
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    }
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// -----------------------------------------------------------------------------
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// Allows setting undefined as value
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// -----------------------------------------------------------------------------
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//
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template <class T>
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void TGlxDefaultIdProvider<T>::NextId(T& aId) 
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    { 
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    aId = iNextIdValue++; 
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    }
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   215