os/mm/devsoundextensions/effects/EffectBase/src/AudioEffectBase.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     1 /*
     2 * Copyright (c) 2004 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:   Implementation of the base class for effects.
    15 *
    16 */
    17 
    18 
    19 
    20 // INCLUDE FILES
    21 
    22 #ifdef _DEBUG
    23 #include <e32svr.h>
    24 #endif
    25 #include <AudioEffectBase.h>
    26 #include <MAudioEffectObserver.h>
    27 
    28 // ============================ MEMBER FUNCTIONS ===============================
    29 
    30 // -----------------------------------------------------------------------------
    31 // CAudioEffect::CAudioEffect
    32 // C++ default constructor can NOT contain any code, that
    33 // might leave.
    34 // -----------------------------------------------------------------------------
    35 //
    36 EXPORT_C CAudioEffect::CAudioEffect()
    37     : 	iEnabled(EFalse),
    38     	iEnforced(EFalse),
    39     	iHaveUpdateRights(ETrue)
    40     {
    41     }
    42 
    43 
    44 // Destructor
    45 EXPORT_C CAudioEffect::~CAudioEffect()
    46     {
    47 	iObservers.Close();
    48     }
    49 
    50 // -----------------------------------------------------------------------------
    51 // CAudioEffect::IsEnable
    52 // -----------------------------------------------------------------------------
    53 //
    54 EXPORT_C TBool CAudioEffect::IsEnabled() const
    55     {
    56 	return iEnabled;
    57     }
    58 
    59 // -----------------------------------------------------------------------------
    60 // CAudioEffect::Enable
    61 // -----------------------------------------------------------------------------
    62 //
    63 EXPORT_C void CAudioEffect::EnableL()
    64     {
    65 	iEnabled = ETrue;
    66 	ApplyL();
    67     }
    68 
    69 // -----------------------------------------------------------------------------
    70 // CAudioEffect::Disable
    71 // -----------------------------------------------------------------------------
    72 //
    73 EXPORT_C void CAudioEffect::DisableL()
    74     {
    75 	iEnabled = EFalse;
    76 	ApplyL();
    77     }
    78 
    79 // -----------------------------------------------------------------------------
    80 // CAudioEffect::Enforce
    81 // -----------------------------------------------------------------------------
    82 //
    83 EXPORT_C void CAudioEffect::EnforceL(
    84 	TBool aEnforced )
    85     {
    86 	iEnforced = aEnforced;
    87 	ApplyL();
    88     }
    89 
    90 // -----------------------------------------------------------------------------
    91 // CAudioEffect::HaveUpdateRights
    92 // -----------------------------------------------------------------------------
    93 //
    94 EXPORT_C TBool CAudioEffect::HaveUpdateRights() const
    95     {
    96 	return iHaveUpdateRights;
    97     }
    98 
    99 // -----------------------------------------------------------------------------
   100 // CAudioEffect::IsEnforced
   101 // -----------------------------------------------------------------------------
   102 //
   103 EXPORT_C TBool CAudioEffect::IsEnforced() const
   104     {
   105 	return iEnforced;
   106     }
   107 
   108 // -----------------------------------------------------------------------------
   109 // CVolume::RegisterObserverL
   110 // -----------------------------------------------------------------------------
   111 //
   112 EXPORT_C void CAudioEffect::RegisterObserverL(
   113 	MAudioEffectObserver& aObserver )
   114 	{
   115 	User::LeaveIfError(iObservers.Append(&aObserver));
   116 	}
   117 
   118 // -----------------------------------------------------------------------------
   119 // CVolume::UnRegisterObserver
   120 // -----------------------------------------------------------------------------
   121 //
   122 EXPORT_C void CAudioEffect::UnRegisterObserver(
   123 	MAudioEffectObserver& aObserver )
   124 	{
   125 	TInt index = iObservers.Find(&aObserver);
   126 	if( index != KErrNotFound )
   127 		{
   128 		iObservers.Remove(index);
   129 		}
   130 	}
   131 
   132 // ========================== OTHER EXPORTED FUNCTIONS =========================
   133 
   134 // End of File