/*

 * Name        : Overlay.h

 * Description : 

 * Project     : This file is part of OpenMAR, an Open Mobile Augmented Reality browser

 * Website     : http://OpenMAR.org

 *

 * Copyright (c) 2010 David Caabeiro

 *

 * All rights reserved. This program and the accompanying materials are made available 

 * under the terms of the Eclipse Public License v1.0 which accompanies this 

 * distribution, and is available at http://www.eclipse.org/legal/epl-v10.html

 *

 */

#ifndef OVERLAY_H_

#define OVERLAY_H_

#include <e32base.h>

#include <GLES/egl.h>

#include "POIOverlay.h"

#include "Matrix4d.h"

#include "Position.h"

class RWindow;

class CWsBitmap;

class CAccelerometer;

class CMagnetometer;

class CAutoRotation;

class CManager;

/**

 * @brief Points of interest overlay

 * 

 * Uses orientation and position to request POIs around the current location 

 */

class COverlay : public OpenMAR::CPOIOverlay,

            public MPositionObserver

{

public:

    static COverlay* NewL(SParameter& aParameter);

    ~COverlay();

protected:

    COverlay(SParameter& aParameter);

    void ConstructL();

public:

    void StartL();

    void Stop();

    const CFbsBitmap& RenderScene();

protected:

    // From MPositionObserver

    void PositionUpdateL(TInt aError, const TPosition& aPosition);

public:

    TInt GetFocusedPOI();

private:

    CPosition* iPosition;

    CAccelerometer* iAccelerometer;

    CMagnetometer* iMagnetometer;

    CAutoRotation* iAutoRotation;

    CManager* iManager;

private:

    RWindow& iWindow;

    TRect iRect;

    EGLDisplay  iEglDisplay;

    EGLSurface  iEglSurface;

    EGLConfig   iConfig;

    EGLContext  iEglContext;

    CWsBitmap*  iPixmap;

private:

    Matrix4d iProjection;

    Matrix4d iModelView;

};

#endif  // OVERLAY_H_