examples/sfexamples/MidiPlaying/inc/MidiPlayer.h

// 
// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "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 MIDIPLAYER_H
#define MIDIPLAYER_H

// INCLUDE FILES
#include <e32std.h>
#include <e32base.h>
#include <midiclientutility.h>

// CLASS DECLARATION

class CMidiPlayer : public CBase, public MMidiClientUtilityObserver
        {
public: // Constructors and destructor
        static CMidiPlayer* NewL();
        static CMidiPlayer* NewLC();
        ~CMidiPlayer();

public: // New methods
        void Play(const TDesC& aFileName);
        void Stop();
        
private:
        CMidiPlayer();
        void ConstructL();

private:// From MMidiClientUtilityObserver
        void MmcuoStateChanged(TMidiState aOldState, TMidiState aNewState,
                        const TTimeIntervalMicroSeconds &aTime, TInt aError);
        void MmcuoTempoChanged(TInt aMicroBeatsPerMinute);
        void MmcuoVolumeChanged(TInt aChannel, TReal32 aVolumeInDecibels);
        void MmcuoMuteChanged(TInt aChannel, TBool aMuted);
        void MmcuoSyncUpdate(const TTimeIntervalMicroSeconds &aMicroSeconds,
                        TInt64 aMicroBeats);
        void MmcuoMetaDataEntryFound(const TInt aMetaDataEntryId,
                        const TTimeIntervalMicroSeconds &aPosition);
        void MmcuoMipMessageReceived(const RArray< TMipMessageEntry > &aMessage);
        void MmcuoPolyphonyChanged(TInt aNewPolyphony);
        void MmcuoInstrumentChanged(TInt aChannel, TInt aBankId,
                        TInt aInstrumentId);

private: // Public methods
        void DisplayErrorMessage(TInt aError);
        
private: // Member variables
        CMidiClientUtility* iMidiUtility;
        };

#endif // MIDIPLAYER_H

// End of File

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