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 

    19 #include "CMIDBitmapImage.h"

    20 #include "LcdFbsImage.h"

    21 

    22 CMIDBitmapImage::CMIDBitmapImage(CLcdFbsImage& aImageRep)

    23         : iImageRep(aImageRep)

    24         , iRefCount(0)

    25 {

    26     iImageRep.AddRef();

    27 }

    28 

    29 CMIDBitmapImage::~CMIDBitmapImage()

    30 {

    31     iImageRep.RemoveRef();

    32 }

    33 

    34 void CMIDBitmapImage::AddRef()

    35 {

    36     ++iRefCount;

    37 }

    38 

    39 void CMIDBitmapImage::RemoveRef()

    40 {

    41     if (--iRefCount == 0)

    42     {

    43         delete this;

    44     }

    45 }

    46 

    47 CFbsBitmap* CMIDBitmapImage::ColorBitmap() const

    48 {

    49     return iImageRep.ColorBitmap();

    50 }

    51 

    52 CFbsBitmap* CMIDBitmapImage::AlphaBitmap() const

    53 {

    54     return iImageRep.AlphaBitmap();

    55 }

    56 

    57 CFbsBitmap* CMIDBitmapImage::CreateColorBitmapL(TDisplayMode aMode) const

    58 {

    59     return CLcdFbsImage::CopyBitmapL(iImageRep.ColorBitmap(), aMode, EFalse);

    60 }

    61 

    62 CFbsBitmap* CMIDBitmapImage::CreateAlphaBitmapL(TDisplayMode aMode, TBool aInvert) const

    63 {

    64     CFbsBitmap* alphaBitmap = iImageRep.AlphaBitmap();

    65     if (!alphaBitmap)

    66     {

    67         return NULL;

    68     }

    69     return CLcdFbsImage::CopyBitmapL(alphaBitmap, aMode, aInvert);

    70 }

    71 

    72 /**

    73  * Create a duplicate bitmap of the color bitmap. The duplicate

    74  * bitmap will refer to the same pixel data.

    75  * Caller takes ownership.

    76  */

    77 CFbsBitmap* CMIDBitmapImage::DuplicateColorBitmapL() const

    78 {

    79     return CLcdFbsImage::DuplicateBitmapL(iImageRep.ColorBitmap());

    80 }

    81 

    82 /**

    83  * Create a duplicate bitmap of the alpha bitmap. The duplicate

    84  * bitmap will refer to the same pixel data.

    85  * Caller takes ownership.

    86  * May return NULL if no alpha bitmap is present.

    87  */

    88 CFbsBitmap* CMIDBitmapImage::DuplicateAlphaBitmapL() const

    89 {

    90     CFbsBitmap* alphaBitmap = iImageRep.AlphaBitmap();

    91     if (!alphaBitmap)

    92     {

    93         return NULL;

    94     }

    95     return CLcdFbsImage::DuplicateBitmapL(alphaBitmap);

    96 }

    97 

    98 void CMIDBitmapImage::Draw(CBitmapContext& aContext, const TPoint& aPoint) const

    99 {

   100     TRect rect(ColorBitmap()->SizeInPixels());

   101     Draw(aContext, aPoint, rect);

   102 }

   103 

   104 void CMIDBitmapImage::Draw(CBitmapContext& aContext, const TPoint& aPoint, const TRect& aRect) const

   105 {

   106     CFbsBitmap* colorBitmap = ColorBitmap();

   107 

   108     if (colorBitmap)

   109     {

   110         CFbsBitmap* alphaBitmap = AlphaBitmap();

   111 

   112         if (alphaBitmap)

   113         {

   114             aContext.BitBltMasked(aPoint, colorBitmap, aRect, alphaBitmap, EFalse);

   115         }

   116         else

   117         {

   118             aContext.BitBlt(aPoint, colorBitmap, aRect);

   119         }

   120     }

   121 }