locationtriggering/ltcontainer/src/lbttriggerkey.cpp
changeset 0 667063e416a2
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     1 /*
       
     2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Implementation Trigger Key class used to identify trigger
       
    15 *                information stored in the BTree
       
    16 *
       
    17 */
       
    18 
       
    19 
       
    20 
       
    21 #include "lbttriggerkey.h"
       
    22 #include "lbtcontainertriggerentry.h"
       
    23 
       
    24 
       
    25 // ======== MEMBER FUNCTIONS ========
       
    26 
       
    27 // -----------------------------------------------------------------------------
       
    28 // TLbtTriggerKey::Between
       
    29 // 
       
    30 // -----------------------------------------------------------------------------
       
    31 //
       
    32 void TLbtTriggerKey::Between( const TAny* aLeft, const TAny* aRight, 
       
    33                                                     TBtreePivot& aPivot ) const
       
    34     {
       
    35 	TUint32 left = *( TUint32* ) aLeft;
       
    36 	TUint32 right = *( TUint32* ) aRight;
       
    37 
       
    38 	TUint32 mid = left + ( right - left ) / 2;
       
    39 	aPivot.Copy( ( TUint8* ) &mid, sizeof( mid ) );
       
    40     }
       
    41 
       
    42 
       
    43 // -----------------------------------------------------------------------------
       
    44 // TLbtTriggerKey::Compare
       
    45 // 
       
    46 // -----------------------------------------------------------------------------
       
    47 //
       
    48 TInt TLbtTriggerKey::Compare( const TAny* aLeft, const TAny* aRight ) const
       
    49     { 
       
    50 	TUint32 left,right;
       
    51 	if( aLeft )
       
    52 		{
       
    53 		 left = *( TUint32* ) aLeft;	
       
    54 		}
       
    55 	else
       
    56 		{
       
    57 		return -1;
       
    58 		}
       
    59 		
       
    60 	if( aRight )
       
    61 		{
       
    62 		 right = *( TUint32* ) aRight;	
       
    63 		}
       
    64 	else
       
    65 		{
       
    66 		return 1;
       
    67 		}
       
    68 
       
    69 	if( left < right )
       
    70 	    {
       
    71 	    return -1;
       
    72 	    }
       
    73 	else if( left > right )
       
    74 	    {
       
    75 	    return 1;
       
    76 	    }
       
    77 	return 0;
       
    78     }
       
    79 
       
    80 
       
    81 // -----------------------------------------------------------------------------
       
    82 // TLbtTriggerKey::Key
       
    83 // 
       
    84 // -----------------------------------------------------------------------------
       
    85 //
       
    86 const TAny* TLbtTriggerKey::Key( const TAny* anEntry ) const
       
    87     {
       
    88 /*	CLbtContainerTriggerEntry* t = (CLbtContainerTriggerEntry* ) anEntry;
       
    89 	CLbtTriggerEntry *trigEntry=t->TriggerEntry();
       
    90 	return ( TAny* ) &( trigEntry->Id() );*/
       
    91 	
       
    92 	//krishna's fix :)
       
    93 	
       
    94 	CLbtContainerTriggerEntry** t1 = (CLbtContainerTriggerEntry** ) (anEntry);
       
    95 	CLbtContainerTriggerEntry* t=(CLbtContainerTriggerEntry*) *t1;
       
    96 	CLbtTriggerEntry *trigEntry=t->TriggerEntry();
       
    97 	return ( TAny* ) &( trigEntry->Id() );
       
    98 
       
    99     }