diff -r 075425b8d9a4 -r 189d20c34778 radioapp/radioenginewrapper/inc/radioenginehandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/radioapp/radioenginewrapper/inc/radioenginehandler.h	Wed Jun 23 18:12:57 2010 +0300
@@ -0,0 +1,220 @@
+/*
+* Copyright (c) 2009 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:
+*
+*/
+
+#ifndef _RADIOENGINEHANDLER_H_
+#define _RADIOENGINEHANDLER_H_
+
+// System includes
+#include <QScopedPointer>
+
+// User includes
+#include "radio_global.h"
+#include "mradioengineinitializer.h"
+
+// Forward declarations
+class CRadioEngine;
+class MRadioRdsDataObserver;
+class MRadioEngineHandlerObserver;
+class MRadioApplicationSettings;
+
+// Class declaration
+class RadioEngineHandler : public MRadioEngineInitializer
+{
+public:
+
+    RadioEngineHandler( MRadioEngineHandlerObserver& observer );
+
+    ~RadioEngineHandler();
+
+    /*!
+     * Attempts to construct the radio engine
+     */
+    bool constructEngine();
+
+    /*!
+     * Sets the rds data observer
+     */
+    void setRdsObserver( MRadioRdsDataObserver* observer );
+
+    /*!
+     * Starts or stops receiving RDS data
+     */
+    void setRdsEnabled( bool rdsEnabled );
+
+    /*!
+     * Returns the radio status
+     * @return ETrue = radio is on, EFalse = radio is off
+     */
+    bool isRadioOn();
+
+    /*!
+     * Sets the manual seek status
+     */
+    void setManualSeekMode( bool manualSeek );
+
+    /*!
+     * Returns the manual seek status
+     */
+    bool isInManualSeekMode() const;
+
+    /*!
+     * Tune to the specified frequency
+     * @param aFrequency - frequency to lock onto.
+     */
+    void setFrequency( uint frequency );
+
+    /*!
+     * Sets the audio mute state
+     * @param aMuted - flag to determine whether mute should be turned on or off
+     */
+    void setMute( const bool muted, const bool updateSettings = true );
+
+    /*!
+     * Gets the audio mute state
+     * @return ETrue or EFalse to indicate whether mute is currently on.
+     */
+    bool isMuted() const;
+
+    /*!
+     * Sets the volume level of the FM radio
+     * @param aVolume - the volume to be used.
+     */
+    void setVolume( int newVolume );
+
+    /*!
+     * Gets the volumelevel.
+     * @return the current volume
+     */
+    int volume() const;
+
+    /*!
+     * Gets the max volumelevel.
+     * @return the max volume
+     */
+    int maxVolume() const;
+
+    /*!
+     * Increases the volume by one increment
+     */
+    void increaseVolume();
+
+    /*!
+     * Decreases the volume by one increment
+     */
+    void decreaseVolume();
+
+    /*!
+     * Checks if the antenna is attached
+     * @return ETrue or EFalse to indicate whether antenna is currently attached.
+     */
+    bool isAntennaAttached() const;
+
+    /*!
+     * Retrieves the current frequency.
+     * @return the frequency in hertz
+     */
+    uint currentFrequency() const;
+
+    /*!
+     * Returns the minimum allowed frequency in the current region
+     */
+    uint minFrequency() const;
+
+    /*!
+     * Returns the maximum allowed frequency in the current region
+     */
+    uint maxFrequency() const;
+
+    /*!
+     * Checks if the given frequency is valid in the current region
+     */
+    bool isFrequencyValid( uint frequency ) const;
+
+    /*!
+     * Scan up to the next available frequency.
+     */
+    void seek( Seek::Direction direction );
+
+    /*!
+     * Cancel previously requested scan.
+     */
+    void cancelSeek();
+
+    /*!
+     * Returns the engine seeking state
+     */
+    Seek::State seekingState() const;
+
+    /*!
+     * Rreturn step size for tuning.
+     * @return step size
+     */
+    uint frequencyStepSize() const;
+
+    /*!
+     * Determine current region
+     * @return fmradio region. In case of error, returns EFMRadioRegionNone.
+     */
+    RadioRegion::Region region() const;
+
+    /*!
+     * Sets whether or not audio should be routed to loudspeaker
+     * @param aLoudspeaker ETrue if loudspeaker should be used, EFalse if not
+     */
+    void setAudioRouteToLoudspeaker( bool loudspeaker );
+
+    /*!
+     * Checks if audio is routed to loudspeaker
+     * @return ETrue if loudspeaker is used, EFalse if headset is used
+     */
+    bool isAudioRoutedToLoudspeaker() const;
+
+    /*!
+     * Returns a reference to the application settings
+     */
+    MRadioApplicationSettings& applicationSettings() const;
+
+private:
+
+// from base class MRadioEngineInitializer
+
+    CRadioAudioRouter* InitAudioRouterL();
+    CRadioSystemEventCollector* InitSystemEventCollectorL();
+    CRadioSettings* InitSettingsL();
+
+private: // data
+
+    /*!
+     * Radio engine holder
+     * Own.
+     */
+    QScopedPointer<CRadioEngine>    mEngine;
+
+    /*!
+     * Radio handler observer
+     * Not own.
+     */
+    MRadioEngineHandlerObserver&    mObserver;
+
+    /*!
+     * Selected radio region
+     */
+    RadioRegion::Region             mRegion;
+
+};
+
+#endif //_RADIOENGINEHANDLER_H_