/*

* 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:  Video quality feature.

*

*/

#ifndef C_VTUIVIDEOQUALITY_H

#define C_VTUIVIDEOQUALITY_H

#include    <gulicon.h>

#include    "cvtuifeaturebase.h"

#include    "mvtuicomponent.h"

#include    "tvtuicomponentstate.h"

#include    "videotelui.hrh"

/**

*  TVtUiVideoQualityComponentState

*

* Video quality componentstate definition.

*

*  @since S60 v3.2

*/

class TVtUiVideoQualityComponentState : public TVtUiComponentState

    {

public:

    /**

    * Constructor

    * @param aComponent Reference to component.

    */

    TVtUiVideoQualityComponentState( MVtUiComponent& aComponent );

    };

/**

*  CVtUiVideoQuality

*

*  Video quality UI feature definition.

*

*  @since S60 v3.2

*/

class CVtUiVideoQuality : public CVtUiFeatureBase,

    public MVtUiComponent

    {

public:

    /**

    * Static constructor

    * @param aFeatureManager Reference to feature manager.

    */

    static CVtUiVideoQuality* NewL( CVtUiFeatureManager& aFeatureManager );

    /**

    * Destructor

    */

    ~CVtUiVideoQuality();

public: // from MVtUiFeature

    /** 

    * @see MVtUiFeature::StartL

    */

    void StartL();

    /** 

    * @see MVtUiFeature::Stop 

    */

    void Stop();

    /** 

    * @see MVtUiFeature::InitFeatureL

    */

    void InitFeatureL();

public: // from MVtUiComponent

    /**

    * @see MVtUiComponent::ComponentId

    */

    MVtUiComponent::TComponentId ComponentId() const;

    /**

    * @see MVtUiComponent::ComponentAsControl

    */

    CCoeControl* ComponentAsControl();

    /**

    * @see MVtUiComponent::DoActivateL

    */

    void DoActivateL();

    /**

    * @see MVtUiComponent::DoDeactivateL

    */

    void DoDeactivateL();

private:

    // Creates icons for list

    CGulIcon* CreateIconLC( TVtUiBitmapId aIconId, TVtUiBitmapId aMaskId );

    // Shows the selection list

    void ShowSelectionListL();

    // Async the selection list

    static TInt AsyncShowSelectionList( TAny* aPtr );

    // Reads items from source to target array and updates the selection icon

    // if needed.

    void SetItemsL( CDesCArray& aTarget,const CDesCArray& aSource );

    // Return curretly active item.

    TInt ActiveItem() const;

    // Item selected, adjust video quality.

    void ItemSelectedL( TInt aItemIndex );

private:

    /**

    * Constructor

    */

    CVtUiVideoQuality( CVtUiFeatureManager& aFeatureManager );

    /**

    * 2nd constructor

    */

    void ConstructL();

    /**

    * Callback function that stops the feature.

    * @param aAny pointer to an instance of the class.

    * @return always KErrNone.

    */

    static TInt DoStop( TAny* aAny );

private:

    // Component state

    TVtUiVideoQualityComponentState iComponentState;

    // Async callback for selection list

    CAsyncCallBack* iShowSelectionListCallback;

    };

#endif // CVTUIVIDEOQUALITY_H