/*

* Copyright (c) 2009-2010 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:

*

*/

#ifndef CXEZOOMCONTROLSYMBIAN_H

#define CXEZOOMCONTROLSYMBIAN_H

#include "cxezoomcontrol.h"

#include "cxecameradevice.h" // CxeCameraDevice

#include "cxestatemachine.h"

#include "cxecameradevicecontrol.h"

class CxeCameraDeviceControl;

class CxeSettings;

class CxeFeatureManager;

class CxeZoomControlSymbian : public CxeZoomControl, public CxeStateMachine

{

Q_OBJECT

public: // constructors

    CxeZoomControlSymbian(CxeCameraDevice &cameraDevice,

                          CxeCameraDeviceControl &cameraDeviceControl,

                          CxeSettings &settings,

                          CxeFeatureManager &featureManager);

    virtual ~CxeZoomControlSymbian();

public:

    // from CxeZoomControl

    CxeZoomControl::State state() const;

    int min() const;

    int max() const;

    void zoomTo(int value);

protected:

    // from CxeStateMachine

    void handleStateChanged(int newStateId, CxeError::Id error);

protected slots:

    // Slot to react to still capture signal:

    // prepares the zoom control for still.

    void prepareZoomForStill(int ecamStillResolutionIndex);

    // Slot to react to video capture signal:

    // prepares the zoom control for video.

    void prepareZoomForVideo();

    // Slot to prepare for camera delete signal.

    void reset();

private:

    // private member functions

    void init();

    void initializeStates();

    void finalizeZoomPreparation(int error);

private:

    // private data

    CxeCameraDevice &mCameraDevice;

    CxeCameraDeviceControl &mCameraDeviceControl;

    CxeSettings &mSettings;

    // Zoom levels

    int mCurrentZoomLevel;

    int mMinZoomLevel;

    int mMaxZoomLevel;

    // The RArray is used to map the integers between "min" and "max" to adaptation understandable values.

    RArray<TInt> mDigitalZoomValues;

    TValueInfo mDigitalZoomValueInfo;

    // values ready from feature manager.

    QList<int> mStillMaxZoomLimits;

    QList<int> mVideoMaxZoomLimits;

};

#endif // CXEZOOMCONTROLSYMBIAN_H