/*

* Copyright (c) 2002 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:  Graphics Extension Library header file

*

*/

#ifndef GFXPOLYGONRENDERERP_H

#define GFXPOLYGONRENDERERP_H

#include <e32std.h>

#include <e32base.h>

#include "GfxFloatFixPt.h"

#include "GfxColor.h"

class TGfxColor;

class MGfxPaint;

class CGfxEdgeListP;

class TGfxRendererInfoP;

/**

 * Implementation of a rendering class for polygons.

 *

 *  @lib Gfx2D.lib

 *  @since 1.0

 */

class TGfxPolygonRendererP

    {

    public:

        /**

         * constructor

         */

                            TGfxPolygonRendererP();

        /**

         * initiatize

         */

        void                InitializeP( CGfxEdgeListP* aEdgeList,

                                         TGfxRendererInfoP* aRenderInfo,

                                         MGfxPaint* aPaint,

                                         TBool aWindingNoneZero );

        /**

         * render scan line

         */

        void                RenderScanlineL( TInt aY, TUint32 aAlpha );

        /**

         * blit scan line

         */

        void                BlitScanline( TUint8* aSrc,

                                          TInt aY,

                                          TInt aStart,

                                          TInt aEnd );

        /**

         * draw HLine

         */

        static void         DrawHLine( TUint16* aBuf,

                                       TUint32 aColor,

                                       TInt aLeftX,

                                       TInt aWidth );

    protected:

        CGfxEdgeListP*      iEdgeList;

        TGfxRendererInfoP*  iRenderInfo;

        MGfxPaint*          iPaint;

        TBool               iWindingNoneZero;

    };

#endif      // GFXPOLYGONRENDERERP_H