/*

* Copyright (c) 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 CXESNAPSHOTCONTROLPRIVATE_H

#define CXESNAPSHOTCONTROLPRIVATE_H

#include <QObject>

#include "cxeerror.h"

#include "cxestatemachine.h"

class QPixmap;

class CxeSnapshotControl;

class CxeCameraDevice;

/*!

* Snapshot control private implementation.

*/

class CxeSnapshotControlPrivate : public CxeStateMachine

{

private:

    CxeSnapshotControlPrivate(CxeSnapshotControl *parent, CxeCameraDevice &device);

    virtual ~CxeSnapshotControlPrivate();

protected: // from CxeStateMachine

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

private:

    CxeSnapshotControl::State state() const;

    void initializeStates();

    QSize calculateSnapshotSize(const QSize &displaySize, const QSize &outputResolution) const;

    void start(const QSize &size);

    void stop();

    void handleCameraEvent(int id, int error);

    QPixmap snapshot();

private:

    CxeSnapshotControl *q;

    CxeCameraDevice &mDevice;

    friend class CxeSnapshotControl;

};

#endif // CXESNAPSHOTCONTROLPRIVATE_H