/*

* 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:  Zoom popup definition

*

*/

#ifndef C_VTUIZOOMPOPUP_H

#define C_VTUIZOOMPOPUP_H

#include "tvtuicomponentstate.h"

#include "cvtuipopupbase.h"

class CVtUiFeatureManager;

class MVtEngMedia;

/**

*  CVtUiZoomPopup

*

*  Zoom popup definition.

*

*  @since S60 v3.2

*/

class CVtUiZoomPopup : public CVtUiPopupBase

    {

public:

    /**

    * Static constructor

    * @param aFeatureManager Reference to feature manager.

    */

    static CVtUiZoomPopup* NewL( CVtUiFeatureManager& aFeatureManager );

    /**

    * Destructor

    */

    ~CVtUiZoomPopup();

    /**

    * Refresh zoom popup status.

    */

    void RefreshL();

private: // from CVtUiPopupBase

    /**

    * @see CVtUiPopupBase::DoActivateL

    */

    void DoActivateL();

private: // from base class

    /**

    * @see CVtUiPopupBase::OfferKeyEventL

    */

    TKeyResponse OfferKeyEventL( const TKeyEvent& aEvent,

        TEventCode aCode );

    /**

    * @see CVtUiPopupBase::HandleControlEventL

    */

    void HandleControlEventL( CCoeControl* aControl, TCoeEvent aEventType );

private:

    /**

     * Constructor

     */

    CVtUiZoomPopup( CVtUiFeatureManager& aFeatureManager );

    /*

    * 2nd constructor

    */

    void ConstructL();

    /*

    * Updates zoom adjust range according to current active provider.

    */

    void UpdateAdjustRangeL();

    /**

    * Returns current zoom step or KErrNotFound if an error happens.

    */

    TInt CurrentZoomStep() const;

    /**

    * Returns maximum zoom step or KErrNotFound if an error happens.

    */

    TInt MaxZoomStep() const;

    void ScaleAndSetZoomFactorL( TInt aValue );

private:

    // Reference to feature manager

    CVtUiFeatureManager& iFeatureManager;

    // Engine media

    MVtEngMedia& iMedia;

    // Current zoom

    TInt iCurrent;

    // Maximum zoom value

    TInt iMax;

    };

#endif // C_VTUIZOOMPOPUP_H