--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/basiclocationinfodisplay/blid/engine/src/CBlidEng.cpp	Wed Sep 01 12:31:27 2010 +0100
@@ -0,0 +1,365 @@
+/*
+* Copyright (c) 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: 
+*     Implements interface for Blid event
+*
+*/
+
+
+// INCLUDE FILES
+#include <sysutil.h>
+#include <f32file.h>
+#include <EPos_CPosLandmark.h>
+#include <driveinfo.h>
+
+#include "CBlidEng.h"
+#include "BlidModelFactory.h"
+#include "DllMain.h" // panic codes
+#include "MBlidSettings.h" // MBlidSettings
+#include "MBlidLocation.h" //MBlidLocation
+#include "MBlidRouter.h" //MBlidRouter
+#include "lbsposition.h"
+#include "TNamedCoordinate.h"
+#include "blidengconsts.h"
+
+// ============================ MEMBER FUNCTIONS ==============================
+// ----------------------------------------------------------------------------
+// CBlidEng::NewL
+// Two-phased constructor.
+// ----------------------------------------------------------------------------
+//
+EXPORT_C CBlidEng* CBlidEng::NewL()
+    {
+    CBlidEng* self = new( ELeave ) CBlidEng;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(self); // self
+    return self;
+    }
+
+// ---------------------------------------------------------
+// CBlidEng::ConstructL
+// ---------------------------------------------------------
+//
+void CBlidEng::ConstructL()
+    {
+    User::LeaveIfError(iServer.Connect());
+    CreateModelL( EBlidSettings );
+    CreateModelL( EBlidRouter );
+    iAppMode = EAppForeground;
+    iHWRMLight = CHWRMLight::NewL();    
+    }
+
+// ----------------------------------------------------------------------------
+// CBlidEng::CBlidEng
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// ----------------------------------------------------------------------------
+//
+CBlidEng::CBlidEng()
+    {
+    }
+
+// ---------------------------------------------------------
+// CBlidEng::~CBlidEng
+// ---------------------------------------------------------
+//
+CBlidEng::~CBlidEng()
+    {
+    delete iSettings;
+    delete iLocation;
+    delete iRouter;
+    delete iHWRMLight;
+    iServer.Close();    
+    }
+
+// ---------------------------------------------------------
+// CBlidEng::StoreL
+// ---------------------------------------------------------
+//
+EXPORT_C TStreamId CBlidEng::StoreL( CStreamStore& aStore,
+                                     CStreamStore& aRestore )
+    {
+    RFs fs;
+    User::LeaveIfError(fs.Connect()); 
+    CleanupClosePushL( fs ); 
+
+    if ( SysUtil::DiskSpaceBelowCriticalLevelL( &fs, 0, DriveInfo::EDefaultPhoneMemory ) )
+        {
+        const_cast<CBlidEng*>(this)->RestoreL( aRestore, iStreamId );
+        User::Leave( KErrDiskFull );
+		}
+	CleanupStack::PopAndDestroy(); // fs
+    
+    RStoreWriteStream stream;
+    iStreamId = stream.CreateLC( aStore );
+    ExternalizeL( stream );
+    stream.CommitL();
+    CleanupStack::PopAndDestroy(); //stream
+    return iStreamId;
+    }
+
+// ---------------------------------------------------------
+// CBlidEng::RestoreL
+// ---------------------------------------------------------
+//
+EXPORT_C void CBlidEng::RestoreL( const CStreamStore& aStore,
+                TStreamId aStreamId )
+    {
+    iStreamId = aStreamId;
+    RStoreReadStream stream;
+    stream.OpenLC(aStore,iStreamId);
+    InternalizeL(stream);
+    CleanupStack::PopAndDestroy(); //stream
+    }
+
+// ----------------------------------------------------------------------------
+// CBlidEng::SettingsModel()
+// Settings model getter.
+// ----------------------------------------------------------------------------
+//
+EXPORT_C MBlidSettings* CBlidEng::SettingsModel() const
+    {
+    return iSettings;
+    }
+
+// ----------------------------------------------------------------------------
+// CBlidEng::LocationModel()
+// Location model getter.
+// ----------------------------------------------------------------------------
+//
+EXPORT_C MBlidLocation* CBlidEng::LocationModel() const
+    {
+    return iLocation;
+    }
+
+// ----------------------------------------------------------------------------
+// CBlidEng::RouterModel()
+// Router model getter.
+// ----------------------------------------------------------------------------
+//
+EXPORT_C MBlidRouter* CBlidEng::RouterModel() const
+    {
+    return iRouter;
+    }
+
+// ----------------------------------------------------------------------------
+// CBlidEng::CreateModelL()
+// Creates a given model type.
+// ----------------------------------------------------------------------------
+//
+EXPORT_C void CBlidEng::CreateModelL( TBlidModelType aModel )
+    {
+    switch( aModel )
+        {
+        case EBlidSettings:
+            {
+            if ( !iSettings )
+                {
+                iSettings = BlidModelFactory::SettingsL();
+                }
+            break;
+            }
+        case EBlidLocation:
+            {
+            if ( !iLocation )
+                {
+                iLocation = BlidModelFactory::LocationL(iServer, *this);                
+                }
+            break;
+            }
+        case EBlidRouter:
+            {
+            if ( !iRouter )
+            	{
+                iRouter = BlidModelFactory::RouterL();
+                }
+            break;
+            }
+        default:
+            {
+            // Not supported model type
+            __ASSERT_DEBUG(EFalse, BlidEngPanic(ELCEModelTypeNotSupported));
+            break;
+            }            
+        }
+    }
+    
+// ---------------------------------------------------------
+// CBlidEng::GetDistanceToDestination
+// ---------------------------------------------------------
+//
+EXPORT_C TInt CBlidEng::GetDistanceToDestination(TReal32& aDistance)
+    {
+    if(iRouter->IsAnyPointSet())
+        {
+        TInt retVal;
+        TPosition& currentPosition = iLocation->GetCurrentPosition();
+        if(iRouter->IsWaypointSet())
+            {
+            TNamedCoordinate* destination = iRouter->Waypoint();
+            retVal = destination->Distance(currentPosition, aDistance);
+            }
+        else
+            {
+            CPosLandmark* landmark = iRouter->Landmark();
+            TPosition destination;
+            landmark->GetPosition(destination);
+            retVal = currentPosition.Distance(destination, aDistance);            
+            }
+        
+        return retVal;
+        }
+    else
+        {
+        return KErrNotFound;
+        }        
+    }
+
+// ---------------------------------------------------------
+// CBlidEng::HasArrivedToDestination
+// ---------------------------------------------------------
+//
+EXPORT_C TBool CBlidEng::HasArrivedToDestination()
+	{
+	if(iRouter->IsAnyPointSet())
+		{
+		TPosition& currentPosition = iLocation->GetCurrentPosition();
+		TReal32 distanceToDestination(0);
+		
+		if(iRouter->IsWaypointSet())
+	        {
+	        TNamedCoordinate* destination = iRouter->Waypoint();
+	        if(destination->Distance(currentPosition, distanceToDestination) != KErrNone)
+	        	{
+	        	return EFalse;
+	        	}
+	        }
+	    else
+	        {
+	        TPosition destination;
+	        CPosLandmark* landmark = iRouter->Landmark();	        
+	        landmark->GetPosition(destination);
+	        if(currentPosition.Distance(destination, distanceToDestination) != KErrNone)
+	        	{
+	        	return EFalse;
+	        	}
+	        }	    
+	    
+	    if(distanceToDestination <= KMinArrivalDist)
+	    	{
+	    	iSettings->SetArrivedDistance( KMinArrivalDist );
+	    	return ETrue;
+	    	}
+	    
+	    TReal tempHorizontalAccuracy = currentPosition.HorizontalAccuracy();
+	    
+	    if(tempHorizontalAccuracy > KMaxHorAccLimit)
+	    	{
+	    	tempHorizontalAccuracy = KMaxHorAccLimit;
+	    	}
+	    
+	    if(distanceToDestination <= tempHorizontalAccuracy)
+	    	{
+	    	iSettings->SetArrivedDistance( tempHorizontalAccuracy );
+	    	return ETrue;
+	    	}
+		}	
+	return EFalse;		
+	}
+// ----------------------------------------------------------------------------
+// CBlidEng::SetAppMode
+// ----------------------------------------------------------------------------
+//
+EXPORT_C void CBlidEng::SetAppMode(TAppMode aMode)
+    {
+    iAppMode = aMode;
+    }
+
+// ----------------------------------------------------------------------------
+// CBlidEng::SetBackLightStateL
+// It's allocate the Backlight resource for the client and deallocate also depends
+// Upon the choise of backlight option from the settings view
+// ----------------------------------------------------------------------------
+//
+EXPORT_C void CBlidEng::SetBackLightStateL(TBacklightState aState)
+	{
+	if(aState == EBlidBacklightAlwaysOn)
+		{
+		TRAPD( error, iHWRMLight->ReserveLightL(CHWRMLight::EPrimaryDisplay, EFalse, EFalse); 
+		              iHWRMLight->LightOnL(CHWRMLight::EPrimaryDisplay); );
+        if( error != KErrNone )
+            {
+            // do something if necessary.
+            }
+		}
+	else
+		{
+		iHWRMLight->ReleaseLight(CHWRMLight::EPrimaryDisplay);
+		}		
+	}	
+
+// ---------------------------------------------------------
+// CBlidEng::ExternalizeL
+// ---------------------------------------------------------
+//
+void CBlidEng::ExternalizeL( RWriteStream& aStream ) const
+    {
+    aStream.WriteInt32L( KBlidDocVersion1 );
+	iRouter->ExternalizeL( aStream );
+    }
+
+// ---------------------------------------------------------
+// CBlidEng::InternalizeL
+// ---------------------------------------------------------
+//
+void CBlidEng::InternalizeL( RReadStream& aStream )
+    {
+    switch( aStream.ReadInt32L() )
+        {
+        case KBlidDocVersion1:        
+            {
+            InternalizeV1L( aStream );
+            break;
+            }
+        default:
+            {
+            User::Leave( KErrNotSupported );
+            break;
+            }
+        }
+    }
+
+// ---------------------------------------------------------
+// CBlidEng::InternalizeLV1
+// ---------------------------------------------------------
+//
+void CBlidEng::InternalizeV1L( RReadStream& aStream )
+    {    
+    if ( iRouter->Count() )
+        {
+        iRouter->ResetAndDestroy();
+        }
+    iRouter->InternalizeV1L( aStream );
+    }
+
+// ----------------------------------------------------------------------------
+// CBlidEng::AppMode
+// ----------------------------------------------------------------------------
+//
+EXPORT_C CBlidEng::TAppMode CBlidEng::AppMode()
+    {
+    return iAppMode;
+    }
+// End of File