/*

* 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 Telephone local variation class definition.

*

*/

#ifndef T_VTUILOCALVARIATION_H

#define T_VTUILOCALVARIATION_H

#include <e32base.h>

#include "tvtflagcontainer.h"

// User selectable Call answer status values

const TInt KAllwaysQuery = 0;

const TInt KAllwaysAllow = 2;

const TInt KNumberOfTbButtons = 6;

/**

 *  TVtUiVariationBase

 *

 *  Base class for local variation classes.

 *

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiVariationBase ) : public TVtFlagContainer

    {

public:

     /**

     * Reads variations from central reposityory.

     * and set default value in case error

     */

    virtual void ReadL( const TInt adefault = -1 );

protected:

    /**

     * Returns UID of the repository to be read.

     */

    virtual const TUid& Uid() const = 0;

    /**

     * ID of the key inside repository to be read.

     */

    virtual TUint32 Key() const = 0;

    /**

     * Gets key value.

     */

    virtual TUint32 ReceiveValue() const;

    };

/**

 *  TVtUiVideoTelephonyVariation

 *

 *  Video Telephony variation class. Reads VT local variation flags from the

 *  CenRep and contains methods to query flag states. This class should be

 *  instanced only once and same instance should be passesd as reference to

 *  modules that need this local variation information.

 *

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiVideoTelephonyVariation ) : public TVtUiVariationBase

    {

public:

    /**

     * Return whether or not ScalingMethodENearest is set in local variation.

     *

     * @return ETrue if ScalingMethodENearest local variation flag is set,

     * EFalse otherwise.

     */

    inline TBool IsScalingMethodENearest() const;

    /**

     * Return whether or not ScalingMethodEBilinear is set in local variation.

     *

     * @return ETrue if ScalingMethodEBilinear local variation flag is set,

     * EFalse otherwise.

     */

    inline TBool IsScalingMethodEBilinear() const;

    /**

     * Return whether or not EnableBitReversal is set in local variation.

     *

     * @return ETrue if EnableBitReversal local variation flag is set, EFalse

     * otherwise.

     */

    inline TBool IsEnableBitReversal() const;

private: // from TVtUiVariationBase

    /**

     * @see TVtUiVariationBase::Uid

     */

    const TUid& Uid() const;

    /**

     * @see TVtUiVariationBase::Key

     */

    TUint32 Key() const;

    };

/**

 *  TVtUiActiveIdleVariation

 *

 *  Active Idle variation class. Reads AI local variation flags from the

 *  CenRep and contains methods to query flag states. This class should be

 *  instanced only once and same instance should be passesd as reference to

 *  modules that need this local variation information.

  *

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiActiveIdleVariation ) : public TVtUiVariationBase

    {

public:

    /**

     * Return whether or not active idle is enabled in local variation.

     *

     * @return ETrue if active idle is enabled in local variation.

     */

    TBool IsActiveIdleEnabled();

private: // from TVtUiVariationBase

    /**

     * @see TVtUiVariationBase::Uid

     */

    const TUid& Uid() const;

    /**

     * @see TVtUiVariationBase::Key

     */

    TUint32 Key() const;

private:

    };

/**

 *  TVtUiGsMuteVariation

 *

 *  General settings (Gs) variation class. Reads GS local variation flags from the

 *  CenRep and contains methods to query flag states and values. This class should be

 *  instanced only once and same instance should be passesd as reference to

 *  modules that need this local variation information.

  *

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiGsMuteVariation ) : public TVtUiVariationBase

    {

public:

    /**

     * Returns Gs mute state value from CanRep.

     *

     * @return Gs mute state value.

     */

    TUint32 GsMuteState();

private: // from TVtUiVariationBase

    /**

     * @see TVtUiVariationBase::Uid

     */

    const TUid& Uid() const;

    /**

     * @see TVtUiVariationBase::Key

     */

    TUint32 Key() const;

private:

    };

/**

 *  TVtUiToolbarVariation

 *

 *  Toolbar variation class. Reads TB local variation flags from the

 *  CenRep and contains methods to query flag states and values. This class should be

 *  instanced only once and same instance should be passesd as reference to

 *  modules that need this local variation information.

  *

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiToolbarVariation ) : public TVtUiVariationBase

    {

public:

    /**

     * Returns number of toolbar buttons from CanRep.

     *

     * @return number of toolbar buttons.

     */

    TUint32 NumberOfButtons();

private: // from TVtUiVariationBase

    /**

     * @see TVtUiVariationBase::Uid

     */

    const TUid& Uid() const;

    /**

     * @see TVtUiVariationBase::Key

     */

    TUint32 Key() const;

private:

    };

#include "tvtuilocalvariation.inl"

#endif // T_VTUILOCALVARIATION_H