1 /*

     2 * Copyright (c) 2005 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:  Manipulates the virtual location of the SoundSource3D.

    15 *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include <jdebug.h>

    21 #include "cammsaudiolocationcontrol.h"

    22 

    23 // ============================ MEMBER FUNCTIONS ===============================

    24 

    25 // -----------------------------------------------------------------------------

    26 // CAMMSAudioLocationControl::NewLC

    27 // Two-phased constructor.

    28 // -----------------------------------------------------------------------------

    29 CAMMSAudioLocationControl* CAMMSAudioLocationControl::NewLC(

    30     CMMAPlayer* aPlayer)

    31 {

    32     CAMMSAudioLocationControl* self =

    33         new(ELeave) CAMMSAudioLocationControl(aPlayer);

    34 

    35     CleanupStack::PushL(self);

    36 

    37     return self;

    38 }

    39 

    40 // Destructor

    41 CAMMSAudioLocationControl::~CAMMSAudioLocationControl()

    42 {

    43     DEBUG("AMMS::CAMMSAudioLocationControl::~CAMMSAudioLocationControl");

    44 

    45     // Perform DeallocateControl, if the state change has not yet performed it.

    46     DeallocateControl();

    47     delete(CAudioEffect*)iLocationEffect;

    48 }

    49 

    50 // -----------------------------------------------------------------------------

    51 // CAMMSAudioLocationControl::PrepareControlL

    52 // Function which is called after the correct state is set in Player.

    53 // -----------------------------------------------------------------------------

    54 //

    55 void CAMMSAudioLocationControl::PrepareControlL()

    56 {

    57     // Perform the action only for the first time, skip if called afterwards

    58     if (!iLocationEffect)

    59     {

    60         DEBUG("AMMS::CAMMSAudioLocationControl::PrepareControlL");

    61 

    62         CCustomCommandUtility* customCommandUtility =

    63             CreateCustomCommandUtilityL();

    64 

    65         // Set the base class location effect as CSourceLocation

    66         // Effect API takes the ownership of customCommandUtility.

    67         iLocationEffect = CSourceLocation::NewL(customCommandUtility);

    68 

    69         // Enable the Effect API Control

    70         iLocationEffect->EnableL();

    71     }

    72 }

    73 

    74 // -----------------------------------------------------------------------------

    75 // CAMMSAudioLocationControl::DeallocateControl

    76 // Function which is called after the correct state is set in Player.

    77 // -----------------------------------------------------------------------------

    78 //

    79 void CAMMSAudioLocationControl::DeallocateControl()

    80 {

    81     if (iLocationEffect)

    82     {

    83         DEBUG("AMMS::CAMMSAudioLocationControl::DeallocateControl");

    84 

    85         // Disable the Effect API Control

    86         TRAPD(err, iLocationEffect->DisableL());

    87         if (err != KErrNone)

    88         {

    89             // The only even theoritically possible error code here would be

    90             // KErrAccessDenied which is a result from Effect API calling ApplyL

    91             // method without having update rights, but since the Effect

    92             // is already created, that situation can be discarded here.

    93         }

    94 

    95         // Delete the Effect API class.

    96         // The class that is derived from CLocation is casted here to the

    97         // base class CAudioEffect, since CLocation has the destructor

    98         // defined as protected, but the derived class and the base class

    99         // have it defined as public.

   100         delete(CAudioEffect*)iLocationEffect;

   101         iLocationEffect = NULL;

   102     }

   103 }

   104 

   105 const TDesC& CAMMSAudioLocationControl::ClassName() const

   106 {

   107     return KAMMSAudioLocationControl;

   108 }

   109 

   110 // -----------------------------------------------------------------------------

   111 // CAMMSAudioLocationControl::CAMMSAudioLocationControl

   112 // C++ default constructor can NOT contain any code, that

   113 // might leave.

   114 // -----------------------------------------------------------------------------

   115 CAMMSAudioLocationControl::CAMMSAudioLocationControl(CMMAPlayer* aPlayer)

   116         : CAMMSLocationControl(aPlayer)

   117 {

   118 }

   119 

   120 //  End of File