diff -r 1fc85118c3ae -r 870918037e16 basiclocationinfodisplay/blid/engine/inc/CBlidEng.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/basiclocationinfodisplay/blid/engine/inc/CBlidEng.h	Wed Sep 01 12:31:27 2010 +0100
@@ -0,0 +1,232 @@
+/*
+* 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 Engine.
+*
+*/
+
+
+#ifndef BLID_ENG_H__
+#define BLID_ENG_H__
+
+//  INCLUDES
+#include <e32base.h>
+#include <s32std.h>
+#include <lbspositioninfo.h>
+#include <lbs.h>
+#include <hwrmlight.h>
+
+
+// FORWARD DECLARATION
+class MBlidSettings;
+class MBlidLocation;
+class MBlidRouter;
+class TNamedCoordinate;
+
+
+// CLASS DECLARATION
+/**
+ *  Implements entry point class to BlidEng.dll
+ */
+class CBlidEng : public CBase
+    {
+    public:
+        /**
+        * Enumerations for model creation
+        */
+        enum TBlidModelType
+            {
+            EBlidSettings,
+            EBlidLocation,
+            EBlidRouter
+            };
+       
+       enum TAppMode
+			{
+			EAppForeground = 1,
+			EAppBackground
+			};
+			
+	   enum	TBacklightState
+		   {
+		   EBlidBacklightAlwaysOn,
+		   EBlidBacklightNormal
+		   };
+
+    public:
+        /**
+         * Two-phased constructor.
+         *
+         * @return CBlidEng object.
+         */
+        IMPORT_C static CBlidEng* NewL();
+
+        /**
+         * Destructor.
+         */
+        virtual ~CBlidEng();
+
+    private:
+        /**
+         * By default Symbian 2nd phase constructor is private.
+         */
+        void ConstructL();
+
+        /**
+         * C++ default constructor.
+         */
+        CBlidEng();
+
+    public: //new functions
+        /**
+         * Create stream
+         * @param aStore A reference to CStreamStore
+         * @param aRestore A reference to CStreamStore
+         * @return TStreamId
+         */ 
+        IMPORT_C TStreamId StoreL(CStreamStore& aStore,
+                                  CStreamStore& aRestore);
+
+        /**
+         * Open Stream
+         * @param aStore A reference to CStreamStore
+         * @param aStreamId 
+         */
+        IMPORT_C void RestoreL( const CStreamStore& aStore,
+                        TStreamId aStreamId );
+
+        /**
+         * Settings model getter.
+         * Ownership not transferred.
+         *
+         * @return pointer to the settings model
+         */
+        IMPORT_C MBlidSettings* SettingsModel() const;
+
+        /**
+         * Location model getter.
+         * Ownership not transferred.
+         *
+         * @return pointer to the location model
+         */
+        IMPORT_C MBlidLocation* LocationModel() const;
+
+        /**
+         * Router model getter.
+         * Ownership not transferred.
+         *
+         * @return pointer to the router model
+         */
+        IMPORT_C MBlidRouter* RouterModel() const;
+
+        /**
+         * Model creator.
+         *
+         * @param aModel model identificator.
+         */
+        IMPORT_C void CreateModelL( TBlidModelType aModel );
+        
+        /**
+         * Returns the distance to the currently set destination
+         *
+         * @param aDistance. Holds the distance to the destination 
+         * on return.
+         */
+        IMPORT_C TInt GetDistanceToDestination(TReal32& aDistance);
+        
+        /**
+         * Determines if user has arrived to the 
+         * set destination using an algorithm described in the
+         * defination. 
+         *
+         * @ return value
+         * Returns ETrue if current position is in vicinity of the 
+         * set destination 
+         * 
+         * EFalse otherwise.         
+         */
+        IMPORT_C TBool HasArrivedToDestination();
+        
+        /**
+         * Sets the application mode (i.e Background or Foreground)
+         *
+         * @param aMode. 
+         * EAppBackground if Background, 
+         * EAppForeground if Foreground                 
+         */
+        IMPORT_C void SetAppMode(TAppMode aMode);
+        
+        /**
+         * Sets the Backlight state
+         *
+         * @param aState. 
+         * EBlidBacklightAlwaysOn if backlight should always be on
+		 * EBlidBacklightNormal if backlight should be as per general settings 
+         */
+        IMPORT_C void SetBackLightStateL(TBacklightState aState);
+    
+        /**
+         * Returns the application mode
+         * 
+         * @return value
+         * EAppForeground if application in foreground
+         * EAppBackground if application in background
+         */
+        IMPORT_C TAppMode AppMode();
+
+    private: // new functions
+        /**
+         * Save engine's data to file
+         * @param aStream A reference to RWriteStream
+         */ 
+        void ExternalizeL( RWriteStream& aStream ) const;  
+
+        /**
+         * Load initial data from file 
+         * @param aSteam A reference to RReadStream
+         */
+        void InternalizeL( RReadStream& aStream );
+
+        /**
+         * Load initial data from file 
+         * @param aSteam A reference to RReadStream
+         */
+        void InternalizeV1L( RReadStream& aStream );
+
+    private:    // data
+        /// Own: Settings model
+        MBlidSettings* iSettings;
+
+        /// Own: Location model
+        MBlidLocation* iLocation;
+
+        /// Own: Router model
+        MBlidRouter* iRouter;
+
+        /// Own: iServer
+        RPositionServer iServer; 
+        
+        /// stream id
+        mutable TStreamId iStreamId;   
+                
+        //Application mode (foreground/background)
+        TAppMode iAppMode;
+        
+        //Own: Pointer to Backlight resource class
+        CHWRMLight*     iHWRMLight;
+    };
+
+#endif // BLID_ENG_H__
+
+// End of File