// Copyright (c) 2009 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 OPENVGENGINE_H_

#define OPENVGENGINE_H_

#include "engine.h"

#include <VG/openvg.h>

#include <EGL/egl.h>

const TInt KMaxDisplayCoversExample3 = 40;

const TInt KMaxDisplayLeftExample3 = -3;

const TInt KMaxDisplayRightExample3 = 3;

// the max number of covers visible on the screen at any given time

const TInt KMaxCoversExample3 = 40;

class  COpenVGEngine : public CBase, public MEngine

	{

public: 

	static COpenVGEngine* NewL(RWindow& aWindow, EGLDisplay& aDisplay, EGLSurface& aSurface, EGLContext& aContext);

	~COpenVGEngine();

	TInt GetSpeed();

	// From MEngine

	void ActivateL();

	void Deactivate();	

	void Step();

	TBool IsPending();

	void Refresh();

	TKeyResponse HandleKeyEventL(const TKeyEvent& aKeyEvent);

private: 

	COpenVGEngine(RWindow& aWindow, EGLDisplay& aDisplay, EGLSurface& aSurface, EGLContext& aContext);

	void DrawCover(TInt i);

	void NextCover();

	void PreviousCover();		

	void ToggleCoverReflection();

	VGfloat GetMiddleCoverScalingFactor(VGfloat coverPosition);

private:

    RWindow& iWindow;

    EGLDisplay& iDisplay;

    EGLSurface& iSurface;

    EGLContext& iContext;

	TPoint iOldPos;

	TBool isResize;

	VGfloat iCoverLocation[KMaxCoversExample3];

	VGint iWantedCover;

    TBool iHasPendingDraw;

	TBool iShowCoverImage;

	VGfloat iSpeedOffset;

	TBool iShowMirror;

	TSize iSurfaceSize;

	VGfloat iSpeed;

	RArray<VGImage> iImages;

	TInt iCurrentImageIndex;	

	VGPaint iShadowPaint;

	};

#endif