1 /*

     2 * Copyright (c) 2006-2007 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:  Native side interface for DirectGraphics java class.

    15 *

    16 */

    17 

    18 

    19 #ifndef CMIDDIRECTGRAPHICS_H

    20 #define CMIDDIRECTGRAPHICS_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 

    25 #include "TMIDTriangleFiller.h"

    26 #include "TMIDInternalARGB.h"

    27 

    28 // CONSTANTS

    29 const TInt KDottedLine = 1;

    30 const TInt KDottedLineStep = 4;

    31 

    32 // FORWARD DECLARATIONS

    33 class CPolygonFiller;

    34 class CMIDConvertFactory;

    35 class CMIDNativeConverter;

    36 class TMIDBitmapParameters;

    37 #ifdef RD_JAVA_NGA_ENABLED

    38 class MMIDCanvas;

    39 #endif

    40 

    41 //  CLASS DEFINITION

    42 /**

    43  * This class is native side interface for DirectGraphics java class.

    44  *

    45  */

    46 NONSHARABLE_CLASS(CMIDDirectGraphics): public CBase

    47 {

    48 public: // polygon drawing parameter

    49     class TPolygonParameters

    50     {

    51     public:

    52 

    53         TInt* aXPoints;

    54         TInt aXPointsLength;

    55         TInt aXOffset;

    56         TInt aTransX;

    57         TInt* aYPoints;

    58         TInt aYPointsLength;

    59         TInt aYOffset;

    60         TInt aTransY;

    61         TInt aNumberOfPoints;

    62         TInt aARGBColor;

    63         TBool aFill;

    64     };

    65 

    66 public: // Construction

    67     static CMIDDirectGraphics* NewL(CMIDGraphics* aGraphics,

    68                                     MMIDImage* aImage);

    69 

    70 public: // Destruction

    71     ~CMIDDirectGraphics();

    72 

    73 public: // New methods

    74 

    75     // Sets clip rect. This method is normally called from CMIDGraphics

    76     void SetClippingRect(TRect aRect);

    77 

    78     // Sets specified color to image. Includes transparency

    79     void SetColorL(TUint32 aColor, TInt aImageHandle);

    80 

    81     // Drawing and getting bitmaps

    82     void DrawBitmapL(TMIDBitmapParameters* aParams);

    83     void GetBitmapL(TMIDBitmapParameters* aParams);

    84 

    85     // Polygon drawing

    86     void DrawPolygonL(TPolygonParameters* aParams);

    87 

    88     // Triangle drawing

    89     void DrawTriangle(const TInt aX1, const TInt aY1, const TInt aX2, const TInt aY2,

    90                       const TInt aX3, const TInt aY3,

    91                       const TUint32 aColor);

    92     void FillTriangle(const TInt aX1, const TInt aY1, const TInt aX2, const TInt aY2,

    93                       const TInt aX3, const TInt aY3,

    94                       const TUint32 aColor);

    95     // Native pixel format

    96     inline TInt GetNativePixelFormat()

    97     {

    98         return iNativePixelFormat;

    99     }

   100 

   101 protected:

   102     // protected construction

   103     CMIDDirectGraphics();

   104     void ConstructL(CMIDGraphics* aGraphics, MMIDImage* aImage);

   105 

   106 private:

   107     void DrawLine(const TPoint& aPointA, const TPoint& aPointB,

   108                   const TMIDInternalARGB& aColor);

   109 

   110     TInt CalculateScanLength(const TInt aWidth,

   111                              const TDisplayMode aDisplayMode);

   112 

   113 private: // data

   114     // screen size

   115     TSize iScreenSize;

   116 

   117     // clipping rect

   118     TRect iClipRect;

   119 

   120     // converter to bitmap

   121     CMIDNativeConverter* iNativeConverter;

   122 

   123     CPolygonFiller* iPolygonFiller;

   124     TBool iDottedLine;

   125 

   126     // not owned

   127     CMIDGraphics* iGraphics;

   128 

   129     TInt iNativePixelFormat;

   130     CMIDConvertFactory* iConverterFactory;

   131 

   132 #ifdef RD_JAVA_NGA_ENABLED

   133     MMIDCanvas* iCanvasTarget;

   134 #endif

   135 };

   136 

   137 

   138 

   139 #endif // CMIDDIRECTGRAPHICS_H