// 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