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 LCDFBSIMAGE_H

    19 #define LCDFBSIMAGE_H

    20 

    21 #include <fbs.h>

    22 #include <lcdgr.h>

    23 #include <lcdgdrv.h>

    24 

    25 /**

    26  * Image represented by SymbianOS color bitmap + mask/alpha bitmap where

    27  * transparency is present.

    28  *

    29  */

    30 NONSHARABLE_CLASS(CLcdFbsImage) : public CBase

    31 {

    32 public:

    33     /**

    34      * Construct a new image of size aSize and color bitmap of mode aColorMode with optional mask/alpha

    35      * bitmap of mode aAlphaMode. An alpha bitmap mode of ENone indicates no alpha bitmap should be

    36      * created.

    37      */

    38     static CLcdFbsImage* NewL(const TSize& aSize, TDisplayMode aColorMode, TDisplayMode aAlphaMode);

    39 

    40     /**

    41      * Construct a new image, duplicating the bitmap handles aColorBitmap and optional aAlphaBitmap.

    42      */

    43     static CLcdFbsImage* NewL(CFbsBitmap* aColorBitmap, CFbsBitmap* aAlphaBitmap);

    44 

    45     /**

    46      * Dup a bitmap handle. Allocates a new CFbsBitmap instance to hold the handle. Requires an FBSERV ipc.

    47      */

    48     static CFbsBitmap* DuplicateBitmapL(CFbsBitmap*);

    49 

    50     /**

    51      * Create a new bitmap in a given mode and copy the data, optionally inverted.

    52      */

    53     static CFbsBitmap* CopyBitmapL(CFbsBitmap*, TDisplayMode, TBool);

    54 

    55     /**

    56      * Copies pixel data from aSource to aTarget, optionally inverting. Uses BITGDI

    57      * for closest match.

    58      */

    59     static void CopyBitmapL(CFbsBitmap* aTarget, CFbsBitmap* aSource, TBool aInvert);

    60 

    61     ~CLcdFbsImage();

    62 

    63     /**

    64      *

    65      */

    66     TSize Size() const;

    67 

    68     /**

    69      * Increment ref count

    70      */

    71     void  AddRef();

    72 

    73     /**

    74      * Decrement ref count

    75      */

    76     void  RemoveRef();

    77 

    78     /**

    79      *@return the color bitmap

    80      */

    81     CFbsBitmap* ColorBitmap() const;

    82 

    83     /**

    84      *@return the alpha bitmap if any

    85      */

    86     CFbsBitmap* AlphaBitmap() const;

    87 

    88     /**

    89      * Create an alpha bitmap for this image.

    90      *

    91      * Temporarily required to support setTransparencyType.

    92      */

    93     void CreateAlphaBitmapL();

    94 

    95 private:

    96     CFbsBitmap* iColorBitmap;

    97     CFbsBitmap* iAlphaBitmap;

    98     TInt iRefCount;

    99 };

   100 

   101 #endif // LCDFBSIMAGE_H