/*

* Copyright (c) 2005 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 CMIDGRAPHICS_H

#define CMIDGRAPHICS_H

#include <lcdgr.h>

class CFbsBitmap;

class CMIDSprite;

class CMIDTiledLayer;

class CMIDProxyMap;

class CLcdGraphics;

/**

 * Proxy to native peer to javax.microedition.lcdui.Graphics.

 *

 * Presents MMIDGraphics interface for compatability.

 */

NONSHARABLE_CLASS(CMIDGraphics) : public CBase

        , public MMIDGraphics

        , public MMIDBufferProcessor

{

public:

#ifdef RD_JAVA_NGA_ENABLED

    /**

     * Constructor

     * @param aProxyMap

     *      - a proxy

     * @param aGraphics

     *      - a graphics implementation

     * @param aIsImageTarget

     *      - true if an image is the target

     */

    CMIDGraphics(

        CMIDProxyMap& aProxyMap, CLcdGraphics* aGraphics,

        TBool aIsImageTarget, MMIDCanvas* aTarget = NULL);

#else RD_JAVA_NGA_ENABLED

    /**

     * Constructor

     * @param aProxyMap a proxy

     * @param aGraphics a graphics implementation

     * @param aIsImageTarget true if an image is the target

     */

    CMIDGraphics(

        CMIDProxyMap& aProxyMap, CLcdGraphics* aGraphics,

        TBool aIsImageTarget);

#endif // RD_JAVA_NGA_ENABLED

    /**

     * Dtor

     */

    ~CMIDGraphics();

    /**

     * From MMIDComponent

     */

    virtual TType Type() const;

    virtual void Dispose();

    virtual MMIDBufferProcessor* Processor();

    /**

     * From MMIDBufferProcessor

     */

#ifdef RD_JAVA_NGA_ENABLED

    virtual TBool ProcessL(

        const TMIDBufferOp*& aRead, const TMIDBufferOp* aEnd,

        TInt& aCycles, java::util::Monitor* aMonitor);

#else

    virtual TBool   ProcessL(

        const TMIDBufferOp*& aRead, const TMIDBufferOp* aEnd,

        TInt& aCycles, TRequestStatus* aStatus = NULL);

#endif

    virtual void    AbortAsync();

    /**

     *@return aColor quantized to device palette.

     */

    virtual TUint32 DisplayColor(TUint32 aColor);

    /**

     * From MMIDGraphics

     */

    virtual TInt DrawPixels(

        TInt    aType,          // pixel data type

        TUint8* aAddress,       // pixel data array

        TInt    aLength,        // pixel array length (bytes)

        TInt    aScanLength,    // (bytes) always positive - vertical reflection handled by point/size

        TBool   aAlpha,         // true if pixel data contains alpha

        const TRect& aRect,     // destination rect

        TInt    aTransform      // transform to apply

    );

    /**

     *@return bitmap handle if rendering to bitmap

     */

    virtual CFbsBitmap* Bitmap() const;

    /**

     *@return alpha bitmap handle or NULL if there is none

     */

    inline CFbsBitmap*  BitmapAlpha() const;

    /**

     *@return window handle if rendering to window.

     */

    virtual RWindow* Window() const;

    /**

     *@return drawing surface viewport

     */

    virtual TRect ViewPort() const;

    /**

     *@return ETrue for mutable off-screen images (not for canvas/GameCanvas framebuffer)

     * or EFalse for canvas/GameCanvas framebuffer

     */

    TBool IsImageTarget() const;

#ifdef RD_JAVA_NGA_ENABLED

public: // from MMIDComponentNgaExtension

    /**

     * @see MMIDComponentNgaExtension#UpdateEglContent()

     * @since S60 9.2

     */

    virtual void UpdateEglContent();

    /**

     * @see MMIDComponentNgaExtension#IsEglAvailable()

     * @since S60 9.2

     */

    virtual TBool IsEglAvailable() const;

    /**

     * @see MMIDComponentNgaExtension#BindEglSurface()

     * @since S60 9.2

     */

    virtual EGLSurface BindEglSurface();

    /**

     * @see MMIDComponentNgaExtension#ReleaseEglSurface()

     * @since S60 9.2

     */

    virtual void ReleaseEglSurface();

    /**

     * @see MMIDComponentNgaExtension#UpdateOffScreenBitmapL()

     * @since S60 9.2

     */

    virtual void UpdateOffScreenBitmapL(TBool aForced);

    /**

     * @see MMIDComponentNgaExtension#FillEglSurface()

     * @since S60 9.2

     */

    virtual TBool FillEglSurface(const TRect& aRect, const TRgb& aColor);

    /**

     * @see MMIDGraphics#TargetSize()

     * @since S60 9.2

     */

    virtual TSize CanvasTargetSize() const;

    /**

     * @see MMIDGraphics#GetTargetCanvas()

     * @since S60 9.2

     */

    virtual MMIDCanvas* GetTargetCanvas() const;

private:

    /**

     * Merges aRect to member variable TRects that are used for

     * tracking the area that is updated with 2D content.

     * @param aRect TRect that contains new area that has been updated

     *              with 2D content.

     */

    void UpdateRect(const TRect& aRect);

    /**

     * Calculate bounding box for text.

     * @param aTextPtr a text to be drawn

     * @param aP a start point

     * @param aAnchor an anchor that effects to text's start point.

     */

    void UpdateTextRect(TPtrC& aTextPtr, const TPoint& aP, TInt aAnchor);

    /**

     * Finds the minimum of three integers

     * @param aX -

     * @param aY -

     * @param aZ -

     * @return the min of the three attributes

     */

    inline TInt Min3(TInt aX, TInt aY, TInt aZ);

    /**

     * Finds the maximum of three integers

     * @param aX -

     * @param aY -

     * @param aZ -

     * @return the max of the three attributes

     */

    inline TInt Max3(TInt aX, TInt aY, TInt aZ);

private:

    /**

     * Target Canvas of this graphics object.

     * NULL, when this is not canvas graphics.

     */

    MMIDCanvas* iCanvasTarget;

#endif // RD_JAVA_NGA_ENABLED

private:

    CMIDProxyMap& iProxyMap;

    CLcdGraphics* iGraphics;

    // this flag is for mutable off-screen images (not for canvas/GameCanvas framebuffer)

    TBool iIsImageTarget;

};

inline CFbsBitmap* CMIDGraphics::BitmapAlpha() const

{

    return NULL;

}

#ifdef RD_JAVA_NGA_ENABLED

// ---------------------------------------------------------------------------

// CMIDGraphics::Min3

// ---------------------------------------------------------------------------

//

inline TInt CMIDGraphics::Min3(TInt aX, TInt aY, TInt aZ)

{

    return Min(Min(aX, aY), aZ);

}

// ---------------------------------------------------------------------------

// CMIDGraphics::Max3

// ---------------------------------------------------------------------------

//

inline TInt CMIDGraphics::Max3(TInt aX, TInt aY, TInt aZ)

{

    return Max(Max(aX, aY), aZ);

}

#endif // RD_JAVA_NGA_ENABLED

#endif // CMIDGRAPHICS_H