/*

* 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: Juha Kauppinen, Mika Hokkanen

* 

* Description: Photo Browser

*

*/

#ifndef CDRAWGRID_H

#define CDRAWGRID_H

// INCLUDES

#include <e32std.h>

#include <e32base.h>

#include "ImagicContainerBrowser.h"

// CLASS DECLARATION

struct TGridXY

    {

    float iX;

    float iY;

    };

/**

 *  CDrawGrid

 * 

 */

class CDrawGrid : public CBase

    {

public:

    // Constructors and destructor

    /**

     * Destructor.

     */

    ~CDrawGrid();

    /**

     * Two-phased constructor.

     */

    static CDrawGrid* NewL(CImagicContainerBrowser* aContainer, TInt& aCurrentIndex);

    /**

     * Two-phased constructor.

     */

    static CDrawGrid* NewLC(CImagicContainerBrowser* aContainer, TInt& aCurrentIndex);

private:

    /**

     * Constructor for performing 1st stage construction

     */

    CDrawGrid(CImagicContainerBrowser* aContainer, TInt& aCurrentIndex);

    /**

     * EPOC default constructor for performing 2nd stage construction

     */

    void ConstructL(CImagicContainerBrowser* aContainer, TInt& aCurrentIndex);

    void MovingDirection();

    void DisplayDate();

    void SetPrespective(const TSize &aSize);

    void DrawFrame(TInt aIndex);

    void BubbleEffect(TInt& x, TInt& y, float& z);

    void HandleKeys();

public:

    void InitDrawGrid();

    void DrawGridL(const TSize &aSize);

    TBool IsDrawingNeededGrid();

    TReal GetCurrentGridTilt();

    TReal GetGridZoom();

    TGridXY GetGridTargetXY();

    void SetGridTargetXY(TGridXY aValue);

    TGridXY GetGridXY();

    void SetGridXY(TGridXY aValue);

    void UpdateImageCoordinates(const TInt aFirstIndex);    

    void KeyPressed();

    void KeyReleased();

    void KeyEvent();

    CImagicContainerBrowser* iContainer;

    float               iPerspectiveCurrent;//current value of perspective when moving on grid by tilting while grid

    //float               iPerspectiveTarget;//target value of perspective

    float               iGridMovingSpeed;

    float               iGridZoomSpeed;//zoom value in Grid

    float               iGridZoomStep;//zoom value in Grid

    float               iDrawGridZoom;//Holds zooming value for Grid

    float               iDrawGridTargetZoom;//Holds target zooming value for Grid

    float               iTargetPerspective;

    TBool               iIntheEndOfGrid;

    TBool               iJumpOver;

    TUint               iLastGridTexture;

    TBool               iMovingRight;

    TBool               iMovingLeft;

    TDateTime           iPrevDateTime;

    TGridXY             iDrawGridXY;

    TGridXY             iDrawGridTargetXY;

    //variables used in Buble mode

    TBool               iBubbleEffect;//Flag for "Bubble" effect to set it on/off

    TInt                iDistanceX;

    TInt                iDistanceY;

    TInt                iDiff;

    TInt                iDistX;

    TInt                iDistY;

    TInt                iBindDiff;

    TInt                iKeyTimer;

    TInt                iKeyTimer2;

    TReal               iMenuAlpha;

    float               iScaleTarget;

    };

#endif // CDRAWGRID_H