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 orientation of the spectator.

    15 *

    16 */

    17 

    18 

    19 

    20 // INCLUDE FILES

    21 #include <jdebug.h>

    22 #include "cammsspectatororientationcontrol.h"

    23 

    24 

    25 // ============================ MEMBER FUNCTIONS ===============================

    26 

    27 // -----------------------------------------------------------------------------

    28 // CAMMSSpectatorOrientationControl::NewLC

    29 // Two-phased constructor.

    30 // -----------------------------------------------------------------------------

    31 CAMMSSpectatorOrientationControl* CAMMSSpectatorOrientationControl::NewLC(

    32     CMMAPlayer* aPlayer)

    33 {

    34     CAMMSSpectatorOrientationControl* self =

    35         new(ELeave)CAMMSSpectatorOrientationControl(aPlayer);

    36 

    37     CleanupStack::PushL(self);

    38 

    39     return self;

    40 }

    41 

    42 // Destructor

    43 CAMMSSpectatorOrientationControl::~CAMMSSpectatorOrientationControl()

    44 {

    45     DEBUG("AMMS::CAMMSSpectatorOrientationControl::~CAMMSSpectatorOrientationControl");

    46 

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

    48     DeallocateControl();

    49     delete(CAudioEffect*)iOrientationEffect;

    50 }

    51 

    52 // -----------------------------------------------------------------------------

    53 // CAMMSSpectatorOrientationControl::PrepareControlL

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

    55 // -----------------------------------------------------------------------------

    56 //

    57 void CAMMSSpectatorOrientationControl::PrepareControlL()

    58 {

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

    60     if (!iOrientationEffect)

    61     {

    62         DEBUG("AMMS::CAMMSSpectatorOrientationControl::PrepareControlL");

    63 

    64         CCustomCommandUtility* customCommandUtility =

    65             CreateCustomCommandUtilityL();

    66 

    67         // Set the base class orientation effect as CListenerOrientation

    68         // Effect API takes the ownership of customCommandUtility.

    69         iOrientationEffect = CListenerOrientation::NewL(

    70                                  customCommandUtility);

    71 

    72         // Enable the Effect API Control

    73         iOrientationEffect->EnableL();

    74     }

    75 }

    76 

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

    78 // CAMMSSpectatorOrientationControl::DeallocateControl

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

    80 // -----------------------------------------------------------------------------

    81 //

    82 void CAMMSSpectatorOrientationControl::DeallocateControl()

    83 {

    84     if (iOrientationEffect)

    85     {

    86         DEBUG("AMMS::CAMMSSpectatorOrientationControl::DeallocateControl");

    87 

    88         // Disable the Effect API Control

    89         TRAPD(err, iOrientationEffect->DisableL());

    90         if (err != KErrNone)

    91         {

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

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

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

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

    96         }

    97 

    98         // Delete the Effect API class.

    99         // The class that is derived from COrientation is casted here to the

   100         // base class CAudioEffect, since COrientation has the destructor

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

   102         // have it defined as public.

   103         delete(CAudioEffect*)iOrientationEffect;

   104         iOrientationEffect = NULL;

   105     }

   106 }

   107 

   108 const TDesC& CAMMSSpectatorOrientationControl::ClassName() const

   109 {

   110     return KAMMSSpectatorOrientationControl;

   111 }

   112 

   113 // -----------------------------------------------------------------------------

   114 // CAMMSSpectatorOrientationControl::CAMMSSpectatorOrientationControl

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

   116 // might leave.

   117 // -----------------------------------------------------------------------------

   118 CAMMSSpectatorOrientationControl::CAMMSSpectatorOrientationControl(

   119     CMMAPlayer* aPlayer)

   120         : CAMMSOrientationControl(aPlayer)

   121 {

   122 }

   123 

   124 //  End of File