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:  Utility to get the preset and data

    15 *

    16 */

    17 

    18 

    19 #ifndef CAMMSEMCAUDIOVIRTUALIZERENVIRONMENTALPRESETUTILITY_H

    20 #define CAMMSEMCAUDIOVIRTUALIZERENVIRONMENTALPRESETUTILITY_H

    21 

    22 //  INCLUDES

    23 #include <e32base.h>

    24 #include "cammsemcbasemmfdevsound.h"

    25 #include <StereoWideningUtility.h>

    26 #include <StereoWideningUtilityData.h>

    27 

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32  *  @since 5.1

    33  */

    34 NONSHARABLE_CLASS(CAMMSEMCAudioVirtualizerEnvironmentalPresetUtility)

    35         : public CAMMSEMCBaseMMFDevSound

    36 {

    37 public:  // destructor

    38 

    39     /**

    40      * Destructor.

    41      */

    42     ~CAMMSEMCAudioVirtualizerEnvironmentalPresetUtility();

    43 

    44 public: // New functions

    45 

    46     /**

    47      * Gets the current preset.

    48      *

    49      * @return the current preset

    50      */

    51     void GetPresetAtIndexL(TDes& aPreset ,TInt iPresetIndex);

    52 

    53     /**

    54     * Sets the effect according to the given preset.

    55     *

    56     * @param aPreset       The new preset that will be taken into use

    57     */

    58     void SetPresetL(const TDesC& aPreset);

    59 

    60     /**

    61     * Creates utilities that can be used to obtain CSterioWidening Utility

    62     * and preset data .

    63     * Does nothing if the utility already exists.

    64     */

    65     virtual void PrepareEmptyStereoWideningUtilitiesL();

    66 

    67     /**

    68      * Deletes Environmental utilities

    69      * Does nothing if the utilities have already been deleted.

    70      */

    71     virtual void DeleteEmptyStereoWideningUtilities();

    72     /**

    73      * Gets list of preset names available.

    74      * @param aPresetNames Returned preset names

    75      */

    76     virtual void GetPresetNamesL(CDesCArray& aPresetNames);

    77 

    78     CStereoWidening * GetStereoWideningAtPresetIndexL(TInt iPresetIndex);

    79 

    80 public:

    81     /**

    82      * c++ constructor.

    83      */

    84     CAMMSEMCAudioVirtualizerEnvironmentalPresetUtility();

    85     /**

    86      * 2nd phase constructor.

    87      */

    88 

    89     void ConstructL();

    90 

    91 protected: // data

    92 

    93     // Available preset names, owned

    94     CDesCArrayFlat* iPresetNames;

    95     // Used to get preset names and data when the group is empty

    96     // (there are no controls in the group, and thus, no actual

    97     // control can be used for that purpose).

    98     CStereoWideningUtility* iEmptyStereoWideningUtility;

    99 

   100 };

   101 

   102 #endif // CAMMSEMCAUDIOVIRTUALIZERENVIRONMENTALPRESETUTILITY_H

   103 

   104