1 /*

     2 * Copyright (c) 2005-2007 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:  Group for effect controls

    15 *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include <logger.h>

    21 #include "cammsemcequalizerenvironmentalpresetutility.h"

    22 

    23 const TInt KAMMSEMCPresetGranularity = 5;

    24 

    25 

    26 

    27 // ============================ MEMBER FUNCTIONS ===============================

    28 // Constructors

    29 

    30 CAMMSEMCEqualizerEnvironmentalPresetUtility::CAMMSEMCEqualizerEnvironmentalPresetUtility()

    31 {

    32     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility:: CAMMSEMCEqualizerEnvironmentalPresetUtility()");

    33 }

    34 

    35 // Destructor

    36 CAMMSEMCEqualizerEnvironmentalPresetUtility::~CAMMSEMCEqualizerEnvironmentalPresetUtility()

    37 {

    38     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::~ +");

    39     delete iPresetNames;

    40     if (iEmptyEqualizerUtility)

    41     {

    42         TRAPD(err,iEmptyEqualizerUtility ->DisableEqualizerL());

    43         if (err)

    44         {

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

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

    47             // method without having update rights, but since the Utility

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

    49         }

    50         delete iEmptyEqualizerUtility;

    51         iEmptyEqualizerUtility = NULL;

    52     }

    53     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::~ -");

    54 }

    55 

    56 // -----------------------------------------------------------------------------

    57 // CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetAtIndexL

    58 // Gets the current preset.

    59 // (other items were commented in a header).

    60 // -----------------------------------------------------------------------------

    61 void CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetAtIndexL(TDes& aPreset ,TInt iIndex)

    62 {

    63     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetAtIndexL +");

    64     // Return KNullDesC if no preset is set.

    65     if (iIndex >= 0)

    66     {

    67 

    68         TArray< TEfAudioEqualizerUtilityPreset > presetNames =

    69             iEmptyEqualizerUtility->Presets();

    70         aPreset = presetNames[ iIndex ].iPresetName ;

    71 

    72     }

    73     else

    74     {

    75         aPreset = KNullDesC;

    76     }

    77 

    78     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetAtIndexL -");

    79 }

    80 

    81 // -----------------------------------------------------------------------------

    82 // CAMMSEMCEqualizerEnvironmentalPresetUtility::PrepareEmptyEqualizerUtilitiesL

    83 // Creates utilities that can be used to obtain preset names and preset data.

    84 // (other items were commented in a header).

    85 // -----------------------------------------------------------------------------

    86 void CAMMSEMCEqualizerEnvironmentalPresetUtility::PrepareEmptyEqualizerUtilitiesL()

    87 {

    88     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::PrepareEmptyEqualizerUtilitiesL +");

    89     //Calling base class function to create and initialize the CMMFDevSound

    90     CreateAndInitializeDevSoundL();

    91     if (!iEmptyEqualizerUtility)

    92     {

    93         iEmptyEqualizerUtility =

    94             CAudioEqualizerUtility::NewL(*iMMFDevSound);

    95     }

    96 

    97     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::PrepareEmptyEqualizerUtilitiesL -");

    98 }

    99 

   100 // -----------------------------------------------------------------------------

   101 // CAMMSEMCEqualizerEnvironmentalPresetUtility::DeleteEmptyEqualizerUtilities

   102 // Deletes utilities that are used to obtain preset names and preset data.

   103 // (other items were commented in a header).

   104 // -----------------------------------------------------------------------------

   105 void CAMMSEMCEqualizerEnvironmentalPresetUtility::DeleteEmptyEqualizerUtilities()

   106 {

   107     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::DeleteEmptyEqualizerUtilities +");

   108 

   109     if (iEmptyEqualizerUtility)

   110     {

   111         TRAPD(err,iEmptyEqualizerUtility ->DisableEqualizerL());

   112         if (err)

   113         {

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

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

   116             // method without having update rights, but since the Utility

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

   118         }

   119         delete iEmptyEqualizerUtility;

   120         iEmptyEqualizerUtility = NULL;

   121     }

   122 

   123     //Calling base class function to delete CMMFDevSound object to free memory

   124     DeleteDevSound();

   125     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::DeleteEmptyEqualizerUtilities -");

   126 }

   127 

   128 

   129 // -----------------------------------------------------------------------------

   130 // CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetNamesL

   131 // Gets list of preset names available.

   132 // (other items were commented in a header).

   133 // -----------------------------------------------------------------------------

   134 void CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetNamesL(

   135     CDesCArray& aPresetNames)

   136 {

   137     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetNamesL +");

   138     TArray< TEfAudioEqualizerUtilityPreset > presetNames =

   139         iEmptyEqualizerUtility->Presets();

   140     TInt presetCount = presetNames.Count();

   141     for (TInt i = 0; i < presetCount; i++)

   142     {

   143         aPresetNames.AppendL(presetNames[ i ].iPresetName);

   144     }

   145     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetNamesL -");

   146 }

   147 

   148 

   149 // -----------------------------------------------------------------------------

   150 // CAMMSEMCEqualizerEnvironmentalPresetUtility::GetEqualizerAtPresetIndexL

   151 // Gets list of preset names available.

   152 // (other items were commented in a header).

   153 // -----------------------------------------------------------------------------

   154 CAudioEqualizer * CAMMSEMCEqualizerEnvironmentalPresetUtility::GetEqualizerAtPresetIndexL(TInt iIndex)

   155 {

   156     LOG1( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetEqualizerAtPresetIndexL, index=%d",

   157               iIndex);

   158 

   159     __ASSERT_DEBUG(iIndex >= 0, User::Invariant());

   160 

   161     // Set the preset to the empty Environmental Equalizer utility.

   162     iEmptyEqualizerUtility->GetPresetL(iIndex);

   163     return &(iEmptyEqualizerUtility->Equalizer());

   164 

   165 }

   166 

   167 

   168 // -----------------------------------------------------------------------------

   169 // CAMMSEMCEqualizerEnvironmentalPresetUtility::ConstructL

   170 // Symbian 2nd phase constructor can leave.

   171 // (other items were commented in a header).

   172 // -----------------------------------------------------------------------------

   173 void CAMMSEMCEqualizerEnvironmentalPresetUtility::ConstructL()

   174 {

   175     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::ConstructL");

   176     iPresetNames = new(ELeave)CDesCArrayFlat(KAMMSEMCPresetGranularity);

   177     CAMMSEMCBaseMMFDevSound ::ConstructL();

   178 }

   179 

   180 //  End of File