1 /*

     2 * Copyright (c) 2008 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:  Videoteleng Camera Preferences extension Observer

    15 *

    16 */

    17 

    18 

    19 #ifndef MVTENGCAMERAPREFERENCESOBSERVER_H

    20 #define MVTENGCAMERAPREFERENCESOBSERVER_H

    21 

    22 //	INCLUDES

    23 #include <mvtengcamerapreferences.h>

    24 

    25 /**

    26 *  Camera preferences extension observer.

    27 *

    28 *  @lib videoteleng.lib

    29 *  @since S60 v5.0

    30 */

    31 class MVtEngCameraPreferencesObserver

    32     {

    33 

    34 public:

    35 

    36     /**

    37     * Called when observer is attached to camera preferences instance.

    38     * @param aCamPrefs Reference to camera preferences instance this observer

    39     * was attached to.

    40     */

    41     virtual void Attach( MVtEngCameraPreferences& aCamPrefs ) = 0;

    42 

    43     /**

    44     * Called when color tone is updated.

    45     * @param aColorTone New color tone value.

    46     */

    47     virtual void ColorToneUpdated(

    48         MVtEngCameraPreferences::TColorTone aColorTone ) = 0;

    49 

    50     /**

    51     * Called when white balance is updated.

    52     * @param aWhiteBalance New white balance value.

    53     */

    54     virtual void WhiteBalanceUpdated(

    55         MVtEngCameraPreferences::TWhiteBalance aWhiteBalance ) = 0;

    56 

    57     /**

    58     * Called when brightness is updated.

    59     * @param aBrightness New brightness value set.

    60     */

    61     virtual void BrightnessUpdated( TInt aBrightness ) = 0;

    62 

    63     /**

    64     * Called when contrast is updated.

    65     * @param aContrast New contrast value set.

    66     */

    67     virtual void ContrastUpdated( TInt aContrast ) = 0;

    68 

    69     /**

    70     * Called when observer is detached from camera preferences instance.

    71     * @param aCamPrefs Reference to camera preferences instance this observer

    72     * was detached from.

    73     */

    74     virtual void Detach( MVtEngCameraPreferences& aCamPrefs ) = 0;

    75 

    76     };

    77 

    78 #endif // MVTENGCAMERAPREFERENCESOBSERVER_H

    79