/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Camera setting provider, which queries the settings from settingmodel.

*

*/

#ifndef CAM_SETTINGPROVIDER_H

#define CAM_SETTINGPROVIDER_H

#include <e32base.h>

#include "mcamsettingprovider.h"

#include "mcamsettingsmodelobserver.h"

class MCamSettingsModel;

class CCamAppController;

class CCamSettingProvider : public CBase,

                            //public MCamSettingsModelObserver,

                            public MCamSettingProvider

  {

  // =========================================================================

  // Constructors and destructor

  public:

    static CCamSettingProvider* NewL ( CCamAppController& aController, MCamSettingsModel* aSettingsModel );

    static CCamSettingProvider* NewLC( CCamAppController& aController, MCamSettingsModel* aSettingsModel );

    virtual ~CCamSettingProvider();

  // -------------------------------------------------------------------------

  // From MCamSettingProvider

  public:

    virtual void 

      ProvideCameraParamL( 

        const NCamCameraController::TCamCameraParamId&   aParamId, 

              TAny*                                      aParamData );

    virtual void

      ProvideCameraSettingL( 

        const NCamCameraController::TCamCameraSettingId& aSettingId,

              TAny*                                      aSettingData );

    virtual void

      ProvidePendingSettingChangesL(

        RArray<NCamCameraController::TCamCameraSettingId>& aSettingIds );

    virtual TInt PendingSettingChangeCount() const;

    /**

    * Set the supported ISO rates.

    */

    virtual void SetSupportedISORatesL( const RArray<TInt>& aSupportedIsoRates );

  // -------------------------------------------------------------------------

  // New methods

  public:

    /**

    * Clear all pending setting changes.

    */

    void Reset();

    /**

    * Add an array of pending setting changes.

    */  

    void AddPendingSettingChangesL( 

            const RArray<TCamSettingItemIds>& aUiSettingIds );

    /**

    * Add one pending setting change.

    */

    void AddPendingSettingChangeL( TCamSettingItemIds aUiSettingId );

  // -------------------------------------------------------------------------

  // Private constructors

  private:

    void ConstructL();

    CCamSettingProvider( CCamAppController& aController, MCamSettingsModel* aSettingsModel );

  // =========================================================================

  // Data

  private:

    MCamSettingsModel* iSettingsModel;

    CCamAppController& iController;

    RArray<NCamCameraController::TCamCameraSettingId> iPendingSettingChanges;

    TInt iEvStepAsUiValue;

    RArray<TInt> iSupportedISORates;

    TBool iValidISORates;

  // =========================================================================

  };

#endif // CAM_CONSTANTSETTINGPROVIDER_H