--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/landmarks/locationlandmarks/localsearchprov/src/EPos_CPosLmLocalAreaSearch.cpp	Tue Feb 02 01:06:48 2010 +0200
@@ -0,0 +1,254 @@
+/*
+* Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Class for handling area searching for landmarks.
+*
+*
+*/
+
+
+#include <lbs.h>
+#include <EPos_CPosLmAreaCriteria.h>
+#include <epos_landmarkdatabasestructure.h>
+#include "EPos_CPosLmLocalAreaSearch.h"
+#include "EPos_PosLmSqlQueryHelper.h"
+#include "epos_cposlmnameindexiterator.h"
+
+const TInt KLmIdColumn = 1;
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CPosLmLocalAreaSearch::CPosLmLocalAreaSearch(
+    CPosLmLocalDatabase& aDatabase,
+    const CPosLmSearchCriteria& aCriteria,
+    const TPosLmLocalSortPref& aSortPref,
+    TInt aMaxNumOfMatches)
+:   CPosLmLocalSearchHandler(
+        aDatabase, aCriteria.CriteriaType(), aSortPref, aMaxNumOfMatches ),
+    iSearchStatus( ESearchNotStarted )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CPosLmLocalAreaSearch::ConstructL(
+    const CPosLmSearchCriteria& aCriteria,
+    CPosLmDisplayData* aDisplayData)
+    {
+    const CPosLmAreaCriteria& criteria =
+        static_cast<const CPosLmAreaCriteria&>( aCriteria );
+
+    criteria.GetSearchArea( iSouth, iNorth, iWest, iEast );
+
+    if ( aDisplayData )
+        {
+        SetDisplayDataL( aDisplayData );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CPosLmLocalAreaSearch* CPosLmLocalAreaSearch::NewL(
+    CPosLmLocalDatabase& aDatabase,
+    const CPosLmSearchCriteria& aCriteria,
+    const TPosLmLocalSortPref& aSortPref,
+    CPosLmDisplayData* aDisplayData,
+    TInt aMaxNumOfMatches)
+    {
+    CPosLmLocalAreaSearch* self = new (ELeave) CPosLmLocalAreaSearch(
+        aDatabase, aCriteria, aSortPref, aMaxNumOfMatches);
+    CleanupStack::PushL(self);
+    self->ConstructL(aCriteria, aDisplayData);
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CPosLmLocalAreaSearch::~CPosLmLocalAreaSearch()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TBool CPosLmLocalAreaSearch::IsValidForLandmarkSearch() const
+    {
+    return ETrue;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TInt CPosLmLocalAreaSearch::NextStepL( TReal32& aProgress )
+    {
+    if ( iSearchStatus == ESearchNotStarted )
+        {
+        PrepareSearchL();
+        }
+
+    switch ( iSearchStatus )
+        {
+        case EPrepareUnsortedSearch:
+        case EUnsortedSearch:
+            UnsortedSearchL();
+            break;
+        case EPrepareSortedSearch:
+        case ESortedSearch:
+            SortedSearchL();
+            break;
+        default:
+            iSearchStatus = ESearchCompleted;
+            break;
+        }
+
+    return SearchStepCompletedL( iSearchStatus == ESearchCompleted, aProgress );
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CPosLmLocalAreaSearch::PrepareSearchL()
+    {
+    TInt numRowsInTable = GetRowCountL( KPosLmLandmarkTable );
+
+    if ( numRowsInTable == 0 )
+        {
+        iSearchStatus = ESearchCompleted;
+        }
+    else
+        {
+        PrepareCalculateProgress( numRowsInTable );
+        if ( SortPref().SortType() == TPosLmLocalSortPref::ELandmarkSorting )
+            {
+            iSearchStatus = EPrepareSortedSearch;
+            }
+        else
+            {
+            iSearchStatus = EPrepareUnsortedSearch;
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CPosLmLocalAreaSearch::PrepareQueryL( TBool aFullData )
+    {
+    HBufC* query = HBufC::NewLC( KPosLmSqlStatementMaxLen );
+    if ( aFullData )
+    	{
+    	query->Des().Format( KPosLmSqlSelect, &KPosLmSqlAll, &KPosLmLandmarkTable );
+    	}
+    else
+    	{
+    	query->Des().Format( KPosLmSqlSelect, &KPosLmLandmarkIdCol, &KPosLmLandmarkTable );
+    	}
+
+    PosLmSqlQueryHelper::AppendAreaCriteriaToQueryL(
+        query, iSouth, iNorth, iWest, iEast );
+
+    PrepareViewL( iView, *query );
+    CleanupStack::PopAndDestroy( query );
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CPosLmLocalAreaSearch::UnsortedSearchL()
+    {
+    if ( iSearchStatus == EPrepareUnsortedSearch )
+        {
+        PrepareQueryL( HasDisplayData() );
+        iSearchStatus = EUnsortedSearch;
+        }
+
+    if ( iSearchStatus == EUnsortedSearch )
+        {
+        if ( SearchViewL( iView, KLmIdColumn ) || IsMaxMatchesFound() )
+            {
+            iSearchStatus = ESearchCompleted; 
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CPosLmLocalAreaSearch::SortedSearchL()
+    {
+    if ( iSearchStatus == EPrepareSortedSearch )
+        {
+        PrepareLandmarkIndexL();
+        iSearchStatus = ESortedSearch;
+        }
+
+    if ( iSearchStatus == ESortedSearch )
+        {
+        EvaluateLandmarkIndexL();
+        TInt ddMatches = DisplayDataCount();
+        while ( !iLandmarkIndex->AtEnd() && !IsMaxMatchesFound() && !BreakOnDisplayData( ddMatches ) )
+            {
+            const RPosLmLocalNameIndex::CIndexItem& item = iLandmarkIndex->Current();
+            if ( GetLandmarkRowL( item.Id() ) && CurrentRowMatch( iTable ) )
+                {
+                AddMatchL( item.Id(), &iTable );
+                }
+            iLandmarkIndex->Next();
+            }
+
+        if ( !MoreInLandmarkIndex() || IsMaxMatchesFound() )
+            {
+            iSearchStatus = ESearchCompleted;
+            }
+        }
+    }
+
+//-------------------------------------------------------------
+//-------------------------------------------------------------
+//
+TBool CPosLmLocalAreaSearch::CurrentRowMatch( RDbRowSet& aView )
+    {
+    if ( !aView.IsColNull( EPosLmLcLatitudeCol ) &&
+         !aView.IsColNull( EPosLmLcLongitudeCol ) )
+        {
+        TRealX nan;
+        nan.SetNaN();
+        TReal lat = nan, lon = nan;
+        
+        lat = aView.ColReal( EPosLmLcLatitudeCol );
+        lon = aView.ColReal( EPosLmLcLongitudeCol );
+    
+        if ( !Math::IsNaN( lat ) && !Math::IsNaN( lon ) )
+            {
+            if ( ( lat >= iSouth ) && ( lat <= iNorth ) )
+                {
+                if ( iWest <= iEast )
+                    {
+                    return ( lon >= iWest ) && ( lon <= iEast );
+                    }
+                else // cross 180 meridian
+                    {
+                    return ( lon >= iWest ) || ( lon <= iEast );                
+                    }
+                }
+            }
+        }
+    return EFalse;
+    }