audioplayerengine.h

《基于Symbian OS的手机开发与应用实践》这本书的配套源码。

/*
* ============================================================================
*  Name     : CAudioPlayerEngine from AudioPlayerEngine.h
*  Part of  : AudioPlayer
*  Created  : 31.01.2006 by ToBeReplacedByAuthor
*  Description:
*     Declares engine for application.
*  Version  :
*  Copyright: ToBeReplacedByCopyright
* ============================================================================
*/

#ifndef AUDIOPLAYERENGINE_H
#define AUDIOPLAYERENGINE_H

// INCLUDES
#include <e32base.h>
#include <mdaaudiosampleplayer.h>

// CONSTANTS

// FORWARD DECLARATIONS


// CLASS DECLARATION

/**
*  CAudioPlayerEngine application class.
*/
class CAudioPlayerEngine : public CBase, public MMdaAudioPlayerCallback
    {
    public: // Observer interface
        class MObserver
            {
            public:
                virtual void OnComplete(TInt aError) = 0;
            };

    public: // Constructors and destructor
        /**
        * Two-phased constructor.
        */
        static CAudioPlayerEngine* NewL(MObserver& aObserver);

        /**
        * Destructor.
        */
        virtual ~CAudioPlayerEngine();

    public: // Functions from base classes

    public: // Functions from MMdaAudioPlayerCallback
        void MapcInitComplete(TInt aError, const TTimeIntervalMicroSeconds& aDuration);
        void MapcPlayComplete(TInt aError);

    public: // New functions
        void PlayL(const TFileName& aFileName);
        void Stop();

    protected:  // New functions

    protected:  // Functions from base classes

    private:
        /**
        * EPOC default constructor.
        */
        CAudioPlayerEngine(MObserver& aObserver);
        void ConstructL();

    private: // member variables
        MObserver& iObserver;
        CMdaAudioPlayerUtility* iAudioPlayer;
    };

#endif

// End of File