1 /*

     2 * Copyright (c) 2006 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:  1 bit format, 2 distinct color values, stored as a byte.

    15 *

    16 */

    17 

    18 

    19 #ifndef TMIDGRAY1VERTICAL_H

    20 #define TMIDGRAY1VERTICAL_H

    21 

    22 //  INCLUDES

    23 #include "TMIDFormatConverter.h"

    24 

    25 //  CONSTANTS

    26 const TInt KPixelsInByteGray1Vertical = 8;

    27 const TInt KGray1VerticalShift = 3;

    28 const TInt KGray1VerticalAnd = 7;

    29 

    30 

    31 //  CLASS DEFINITION

    32 /**

    33  * 1 bit format, 2 distinct color values (on/off), stored as

    34  * a byte. 8 pixel values in a single byte.

    35  * The pixel data is presented in bytes in which each

    36  * byte defines 8 vertically packed pixels. The byte packed

    37  * pixels are arranged in columns from left to right.

    38  *

    39  */

    40 

    41 NONSHARABLE_CLASS(TMIDGray1Vertical):  public TMIDFormatConverter

    42 {

    43 public: //  initialization

    44     void InitializeL(const TMIDBitmapParameters& aParameters);

    45 

    46 public: // from TMIDFormatConverter

    47     // Convert from internal to int

    48     TUint32 ConvertInternal(const TMIDInternalARGB& aInternal);

    49 

    50     // Convert from int to internal

    51     void Convert(TMIDInternalARGB& aResult, TUint32 aColor) const;

    52 

    53     // Get pixel from current position

    54     void GetPixel(TMIDInternalARGB& aResult) const;

    55 

    56     // Get alpha which is in same format as bitmap

    57     TUint8 GetAlpha() const;

    58 

    59     // Plot pixel to current position

    60     void PlotPixel(const TMIDInternalARGB& aInternal);

    61 

    62     // Plot pixel with alpha

    63     void PlotPixelWithAlpha(const TMIDInternalARGB& aInternal);

    64 

    65     // Set bitmap and alpha bitmap

    66     void SetBitmap(TUint32* aBitmap)

    67     {

    68         iBitmap = (TUint8*)aBitmap;

    69     }

    70 

    71     // Get bitmap

    72     TUint32* Bitmap()

    73     {

    74         return (TUint32*)iBitmap;

    75     }

    76 

    77 protected: // from TMIDFormatConverter

    78     // checks how many pixels is occupied and is last pixel in that limit

    79     TBool CheckSize(TInt aPixelSize, TInt aLastDrawnPixelOffset);

    80 

    81 private: // data

    82     TUint8* iBitmap;

    83 };

    84 

    85 #endif // TMIDGRAY1VERTICAL_H