1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Graphics Extension Library header file

    15 *

    16 */

    17 

    18 

    19 #ifndef GFXSTROKERENDERERP_H

    20 #define GFXSTROKERENDERERP_H

    21 

    22 #include <e32std.h>

    23 #include <e32base.h>

    24 

    25 #include "GfxFloatFixPt.h"

    26 #include "GfxColor.h"

    27 

    28 

    29 

    30 class TGfxColor;

    31 class MGfxPaint;

    32 class CGfxEdgeListP;

    33 class TGfxRendererInfoP;

    34 

    35 

    36 class CFbsBitGc;

    37 

    38 /**

    39  *  Implementation of a rendering class for a stroke.

    40  *

    41  *  @lib Gfx2D.lib

    42  *  @since 1.0

    43  */

    44 class TGfxStrokeRendererP

    45     {

    46     public:

    47         /**

    48          * Constructor.

    49          *

    50          * @since 1.0

    51          * @return

    52          */

    53                             TGfxStrokeRendererP();

    54 

    55 

    56         /**

    57          * Intialize this object.

    58          *

    59          * @since 1.0

    60          * @param aEdgeList : list of edge points.

    61          * @param aRenderInfo : rendering info.

    62          * @param aColor : color to draw.

    63          * @param aPolbuf : pixel output buffer.

    64          * @return

    65          */

    66          void                InitializeP( CGfxEdgeListP* aEdgeList,

    67                                          TGfxRendererInfoP* aRenderInfo,

    68                                          TGfxColor aColor );

    69 

    70         /**

    71          * Render at the given horizontal line.

    72          *

    73          * @since 1.0

    74          * @param aY : y coordinate of line to render.

    75          * @return

    76          */

    77         void                RenderScanlineL( TInt aY );

    78 

    79         /**

    80          * Render at the given horizontal line.

    81          *

    82          * @since 1.0

    83          * @param aY : y coordinate of line to render.

    84          * @param aAlpha : alpha value for blending.

    85          * @return

    86          */

    87         void                RenderScanlineL( TInt aY, TUint32 aAlpha );

    88 

    89     protected:

    90 

    91 

    92         CGfxEdgeListP*      iEdgeList;

    93         TGfxRendererInfoP*  iRenderInfo;

    94         TGfxColor           iStrokeColor;

    95 

    96         CFbsBitGc*          iGdiGc;

    97     };

    98 

    99 

   100 #endif      // GFXSTROKERENDERERP_H