1 /*

     2 * Copyright (c) 2005 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:

    15 *

    16 */

    17 

    18 #ifndef FBSLCDGRAPHICS_H

    19 #define FBSLCDGRAPHICS_H

    20 

    21 #include <e32std.h>

    22 #include <gdi.h>

    23 #include <lcdgdrv.h>

    24 

    25 /**

    26  * Structure containing sufficient information to construct

    27  * a transform for the DrawRegion primitive.

    28  */

    29 struct TDrawRegion

    30 {

    31     TRect   iSrcRect;

    32     TPoint  iDstPoint;

    33     TInt    iAnchor;

    34     TInt    iTransform;

    35 };

    36 

    37 /**

    38  * Utility function to compute the destination rectangle given a source rectangle, an identifier for the

    39  * anchor point to translate to the destination point and a transform to apply to the source rectangle.

    40  */

    41 TRect CalcDstRect(const TPoint& aDstPoint, const TSize& aSrcSize, TTransformType aSrcTransform, TAnchor aSrcAnchor);

    42 

    43 //

    44 // FBSERV bitmap support, may be withdrawn later.

    45 //

    46 #define _LCDGDRV_FBSBITMAP_SUPPORT_

    47 

    48 #ifdef _LCDGDRV_FBSBITMAP_SUPPORT_

    49 

    50 class CFbsBitmap;

    51 

    52 NONSHARABLE_CLASS(TFbsLcdGraphics)

    53 {

    54 public:

    55 

    56     /**

    57      * Copy region of image represented by <aSrcColorBitmap, aSrcAlphaBitmap> pair

    58      * onto destination image represented by <aDstColorBitmap, aDstAlphaBitmap> pair.

    59      * The region to be drawn, the destination position and the transformation to

    60      * apply are supplied by aDrawRegion.

    61      */

    62     static TInt CopyRegion

    63     (

    64         CLcdGraphicsDriver& aDriver,

    65         CFbsBitmap*         aDstColorBitmap,

    66         CFbsBitmap*         aDstAlphaBitmap,

    67         TTransparency       aDstTransparency,

    68         CFbsBitmap*         aSrcColorBitmap,

    69         CFbsBitmap*         aSrcAlphaBitmap,

    70         TTransparency       aSrcTransparency,

    71         const TDrawRegion&  aRegion,

    72         const TRect&        aClipRect

    73     );

    74 

    75     /**

    76      * Copies ARGB8888 pixels into image represented by <aDstColorBitmap, aDstAlphaBitmap>

    77      */

    78     static TInt SetPixels

    79     (

    80         CLcdGraphicsDriver& aDriver,

    81         CFbsBitmap*     aDstColorBitmap,

    82         CFbsBitmap*     aDstAlphaBitmap,

    83         TTransparency   aDstTransparency,

    84         const TRect&    aDstRect,

    85         const TUint32*  aSrcARGB32Pixels,

    86         TInt            aSrcLength,

    87         TInt            aSrcOffset,

    88         TInt            aSrcLinePitch,

    89         const TSize&    aSrcSize,

    90         TBool           aAlpha

    91     );

    92 

    93     /**

    94      * Copies pixels from image represented by <aDstColorBitmap, aDstAlphaBitmap>

    95      * into an array in ARGB8888 format.

    96      */

    97     static TInt GetPixels

    98     (

    99         CLcdGraphicsDriver& aDriver,

   100         CFbsBitmap*     aSrcColorBitmap,

   101         CFbsBitmap*     aSrcAlphaBitmap,

   102         TTransparency   aSrcTransparency,

   103         const TRect&    aSrcRect,

   104         TUint32*        aARGB32Pixels,

   105         TInt            aLength,

   106         TInt            aOffset,

   107         TInt            aLinePitch,

   108         const TSize&    aSize

   109     );

   110 

   111     /**

   112     Check for pixel level collision in area of overlap in two images.

   113     Locks bitmap.

   114     @param aMask1           image1 mask

   115     @param aTransparency1   image1 transparency type

   116     @param aSize1           image1 size

   117     @param aRect1           image1 collison rect in image1 co-ordinates

   118     @param aTransform1      image1 transform

   119     @param aPoint1          position of image1 collison rect in painter's co-ordinates.

   120 

   121     @param aMask2           image2 mask

   122     @param aTransparency1   image2 transparency type

   123     @param aSize2           image2 size

   124     @param aRect2           image2 collison rect in image2 co-ordinates

   125     @param aTransform2      image2 transform

   126     @param aPoint2          position of image2 collison rect in painter's co-ordinates.

   127     */

   128     static TBool DetectCollision

   129     (

   130         CLcdGraphicsDriver& aDriver,

   131 

   132         CFbsBitmap*         aMask1,

   133         TTransparency       aTransparency1,

   134         const TSize&        aSize1,

   135         const TRect&        aRect1,

   136         TInt                aTransform1,

   137         const TPoint&       aPoint1,

   138 

   139         CFbsBitmap*         aMask2,

   140         TTransparency       aTransparency2,

   141         const TSize&        aSize2,

   142         const TRect&        aRect2,

   143         TInt                aTransform2,

   144         const TPoint&       aPoint2

   145     );

   146 };

   147 

   148 #endif

   149 

   150 #endif // FBSLCDGRAPHICS_H