1 /*

     2 * Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Interface and a base class for CMIDClip and CMIDTone.

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef CMIDSOUNDIMPL_H

    21 #define CMIDSOUNDIMPL_H

    22 

    23 //  INCLUDES

    24 #include <e32base.h>

    25 

    26 // FORWARD DECLARATIONS

    27 class MMIDEventSender;

    28 

    29 

    30 //  CLASS DEFINITION

    31 /**

    32  * This class is interface and a base class for CMIDClip and CMIDTone

    33  *

    34  */

    35 NONSHARABLE_CLASS(CMIDSoundImpl): public CBase

    36 {

    37 

    38 public:

    39 

    40     enum TState

    41     {

    42         ENotReady,

    43         EReadyToPlay,

    44         EPlaying,

    45         ENotSupported,

    46         EInitialising

    47     };

    48 

    49 public:

    50 

    51     // destructor

    52     ~CMIDSoundImpl();

    53 

    54 protected:

    55 

    56     void ConstructL();

    57 

    58     // C++ constructor

    59     CMIDSoundImpl(MMIDEventSender* aEventSender);

    60 

    61 public:

    62 

    63     void Resume();

    64 

    65     virtual TInt Play(TInt aLoop) = 0;

    66     virtual void Stop() = 0;

    67     virtual void SetVolume(TInt aVolume) = 0;

    68     virtual TInt Volume() = 0;

    69     virtual void Release() = 0;

    70 

    71     inline TInt State() const;

    72 

    73 protected:

    74 

    75 

    76     TInt iState;

    77 

    78     // true if playback has been started.

    79     TBool iPlayed;

    80 

    81     CActiveSchedulerWait* iSchedulerWait;

    82 

    83     // events are sent through this interface

    84     MMIDEventSender* iEventSender;

    85 

    86 };

    87 

    88 inline TInt CMIDSoundImpl::State() const

    89 {

    90     return iState;

    91 };

    92 

    93 #endif // CMIDSOUNDIMPL_H