--- a/mapnavproviderrefapp/src/mnrpengine.cpp Thu Aug 19 09:48:36 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,433 +0,0 @@
-/*
-* Copyright (c) 2006 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: CMnrpEngine class implementation
-*
-*/
-
-
-#include <coemain.h>
-#include <aknlists.h>
-#include <barsread2.h>
-#include <barsc2.h>
-
-#include <lbsposition.h>
-#include <lbspositioninfo.h>
-
-#include <EPos_CPosLandmark.h>
-#include <EPos_CPosLandmarkDatabase.h>
-
-#include <mnrefproviderengine.rsg>
-
-#include "../inc/debug.h"
-#include "mnrpengine.h"
-
-_LIT( KCitiesResourceFile, "\\resource\\mnrefproviderengine.rsc");
-
-// ============================ MEMBER FUNCTIONS ===============================
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CMnrpEngine::CMnrpEngine()
- {
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C CMnrpEngine::~CMnrpEngine()
- {
- iPlaces.ResetAndDestroy();
- iFileSession.Close();
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C CMnrpEngine* CMnrpEngine::NewL()
- {
- CMnrpEngine* self = new (ELeave) CMnrpEngine();
- CleanupStack::PushL( self );
- self->ConstructL();
- CleanupStack::Pop( self );
- return self;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CMnrpEngine::ConstructL()
- {
- User::LeaveIfError( iFileSession.Connect() );
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C TArray<CPosLandmark*> CMnrpEngine::KnownPlacesL()
- {
- if ( iPlaces.Count() == 0 )
- {
- TRAP_IGNORE( LoadKnownPlacesL() );
- }
-
- return iPlaces.Array();
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C CPosLandmark* CMnrpEngine::AddressToCoordLC( const CPosLandmark& aAddress )
- {
- CPosLandmark* lm = AddressToCoordL( aAddress );
- if ( lm )
- {
- CleanupStack::PushL( lm );
- return lm;
- }
- else
- {
- User::Leave( KErrNotFound );
- return NULL;
- }
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C CPosLandmark* CMnrpEngine::AddressToCoordL( const CPosLandmark& aAddress )
- {
- TPtrC city, country;
- aAddress.GetPositionField( EPositionFieldCity, city );
-
- TArray<CPosLandmark*> pois = KnownPlacesL();
-
- if ( city.Length() )
- {
- for ( TInt i = 0; i < pois.Count(); i++ )
- {
- TPtrC poiCity;
- pois[i]->GetPositionField( EPositionFieldCity, poiCity );
- if ( poiCity.CompareF( city ) == 0 )
- {
- return CPosLandmark::NewL( *pois[i] );
- }
- }
- }
-
- return NULL;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C CPosLandmark* CMnrpEngine::AddressToCoordLC( const TDesC& aAddress )
- {
- CPosLandmark* lm = AddressToCoordL( aAddress );
- if ( lm )
- {
- CleanupStack::PushL( lm );
- return lm;
- }
- else
- {
- User::Leave( KErrNotFound );
- return NULL;
- }
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C CPosLandmark* CMnrpEngine::AddressToCoordL( const TDesC& aAddress )
- {
- TArray<CPosLandmark*> pois = KnownPlacesL();
-
- if ( aAddress.Length() )
- {
- for ( TInt i = 0; i < pois.Count(); i++ )
- {
- TPtrC city, country;
- pois[i]->GetPositionField( EPositionFieldCity, city );
- pois[i]->GetPositionField( EPositionFieldCountry, country );
-
- if ( aAddress.FindF( city ) >= 0 )
- {
- return CPosLandmark::NewL( *pois[i] );
- }
- }
- }
-
- return NULL;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C TReal32 CMnrpEngine::DistanceBetweenLandmarks(
- const CPosLandmark& aFrom,
- const CPosLandmark& aTo )
- {
- TRealX nan;
- nan.SetNaN();
- TReal32 distance = nan;
-
- TLocality locFrom, locTo;
-
- if ( aFrom.GetPosition( locFrom ) == KErrNone &&
- aTo.GetPosition( locTo ) == KErrNone )
- {
- TReal32 dist;
- if ( locFrom.Distance( locTo, dist ) == KErrNone )
- {
- distance = dist;
- }
- }
- return distance;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C void CMnrpEngine::FindClosestPoisL(
- const CPosLandmark& aReference,
- RArray<CMnrpEngine::TDistanceToPoi>& aNeighbourPois,
- TInt aMaxMatches )
- {
- aNeighbourPois.Reset();
- TArray<CPosLandmark*> pois = KnownPlacesL();
-
- // calc distances to known places and find out closest ones
- for ( TInt i = 0; i < pois.Count(); i++ )
- {
- CPosLandmark* poi = pois[i];
-
- TReal32 distance = DistanceBetweenLandmarks( aReference, *poi );
-
- if ( Math::IsNaN( distance ) )
- {
- continue;
- }
-
- TDistanceToPoi newDistToPoi;
- newDistToPoi.iPoiIndex = i;
- newDistToPoi.iDistance = distance;
-
- for ( TInt k = 0; k < aNeighbourPois.Count(); k++ )
- {
- TDistanceToPoi distToPoi = aNeighbourPois[k];
- if ( distance < distToPoi.iDistance )
- {
- // current POI is closer to reference than current neighbour
- aNeighbourPois.InsertL( newDistToPoi, k );
- break;
- }
- }
-
- if ( aNeighbourPois.Count() < aMaxMatches )
- {
- aNeighbourPois.AppendL( newDistToPoi );
- }
-
- if ( aNeighbourPois.Count() > aMaxMatches )
- {
- aNeighbourPois.Remove( aNeighbourPois.Count() - 1 ); // remove last
- }
- }
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-CPosLandmark* CMnrpEngine::CreateCloseLandmarkLC(
- const CPosLandmark& aReference,
- TReal32 aDistance )
- {
- CPosLandmark* lm = CPosLandmark::NewLC( aReference );
- TPtrC oldName;
- lm->GetLandmarkName( oldName );
-
- // create street in the form of "50 km to <POI name>"
- const TInt KDistValueLen = 5; // "40000"
- const TInt KAdditionalChars = 7; // " km to "
-
- _LIT( KLocationNameFormat, "%d m to %S" );
- _LIT( KLocationNameFormatKm, "%d km to %S" );
-
- HBufC* locName = HBufC::NewLC( oldName.Length() + KDistValueLen + KAdditionalChars );
-
- if ( aDistance < 1000 )
- {
- locName->Des().Format( KLocationNameFormat, TInt( aDistance ), &oldName );
- }
- else
- {
- locName->Des().Format( KLocationNameFormatKm, TInt( aDistance / 1000 ), &oldName );
- }
-
- lm->SetPositionFieldL( EPositionFieldLocationName, *locName );
- lm->SetPositionFieldL( EPositionFieldStreet, *locName );
-
- CleanupStack::PopAndDestroy( locName );
- return lm; // left in stack
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C CPosLandmark* CMnrpEngine::CoordToAddressLC( const TCoordinate& aLocation )
- {
- TArray<CPosLandmark*> pois = KnownPlacesL();
-
- // find closest POI
- RArray<TDistanceToPoi> matches;
- CleanupClosePushL( matches );
-
- CPosLandmark* temp = CPosLandmark::NewLC();
- TLocality loc( aLocation, 0 ); // accuracy is not used by this implementation
- temp->SetPositionL( loc );
- FindClosestPoisL( *temp, matches, 1 ); // only one match needed
- CleanupStack::PopAndDestroy( temp );
-
- if ( matches.Count() < 1 )
- {
- User::Leave( KErrNotFound );
- }
-
- TDistanceToPoi distToPoi = matches[0];
- CleanupStack::PopAndDestroy( &matches );
-
- CPosLandmark* lm = CreateCloseLandmarkLC(
- *pois[distToPoi.iPoiIndex],
- distToPoi.iDistance );
-
- return lm; // left in stack
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C void CMnrpEngine::BestCoordToAddressMatchesL(
- const TCoordinate& aLocation,
- RPointerArray<CPosLandmark>& aMatches,
- TInt aMaxMatches )
- {
- TArray<CPosLandmark*> pois = KnownPlacesL();
-
- // find closest POIs
- RArray<TDistanceToPoi> matches;
- CleanupClosePushL( matches );
-
- CPosLandmark* temp = CPosLandmark::NewLC();
- TLocality loc( aLocation, 0 ); // accuracy is not used by this implementation
- temp->SetPositionL( loc );
- FindClosestPoisL( *temp, matches, aMaxMatches );
- CleanupStack::PopAndDestroy( temp );
-
- for ( TInt i = 0; i < matches.Count(); i++ )
- {
- TDistanceToPoi distToPoi = matches[i];
-
- CPosLandmark* lm = CreateCloseLandmarkLC(
- *pois[distToPoi.iPoiIndex],
- distToPoi.iDistance );
-
- aMatches.AppendL( lm );
- CleanupStack::Pop( lm );
- }
- CleanupStack::PopAndDestroy( &matches );
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C void CMnrpEngine::FindResourceFileL(
- const TDesC& aFilePathAndName,
- TFileName& aRscFile )
- {
- TParse parse;
- parse.Set( aFilePathAndName, NULL, NULL );
-
- TFindFile finder( iFileSession );
- if ( finder.FindByDir( parse.NameAndExt(), parse.Path() ) == KErrNone )
- {
- aRscFile.Copy( finder.File() );
- }
- else
- {
- User::Leave( KErrNotFound );
- }
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-EXPORT_C RFs& CMnrpEngine::Fs()
- {
- return iFileSession;
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CMnrpEngine::LoadKnownPlacesL()
- {
- TFileName resourceFile;
- FindResourceFileL( KCitiesResourceFile(), resourceFile );
-
- CResourceFile* resFile = CResourceFile::NewLC( iFileSession, resourceFile, 0, 0 );
- resFile->ConfirmSignatureL( 0 );
-
- RResourceReader reader;
-
- reader.OpenLC( resFile, R_MNREFPROVIDERENGINE_PLACES );
- ReadPlacesResourceL( reader );
- CleanupStack::PopAndDestroy( &reader );
-
- CleanupStack::PopAndDestroy( resFile );
- }
-
-// -----------------------------------------------------------------------------
-// -----------------------------------------------------------------------------
-//
-void CMnrpEngine::ReadPlacesResourceL( RResourceReader& aReader )
- {
- TInt size = aReader.ReadInt16L();
-
- for ( TInt i = 0; i < size; i++ )
- {
- HBufC* city = aReader.ReadHBufCL();
- CleanupStack::PushL( city );
- HBufC* country = aReader.ReadHBufCL();
- CleanupStack::PushL( country );
-
- TReal64 lat = aReader.ReadReal64L();
- TReal64 lon = aReader.ReadReal64L();
-
- CPosLandmark* lm = CPosLandmark::NewLC();
- lm->SetLandmarkNameL( *city );
-
- lm->SetPositionFieldL( EPositionFieldCity, *city );
- lm->SetPositionFieldL( EPositionFieldCountry, *country );
-
- TLocality coord;
- coord.SetCoordinate( lat, lon );
- lm->SetPositionL( coord );
-
- iPlaces.AppendL( lm );
- CleanupStack::Pop( lm );
- CleanupStack::PopAndDestroy( country );
- CleanupStack::PopAndDestroy( city );
- }
- }