1468 // BubbleUtils::AddTransparencyToBubbleImageL

  1469 // ---------------------------------------------------------------------------

  1470 //    

  1471 void BubbleUtils::AddTransparencyToBubbleImageL(

  1472     const TAknsItemID& aFrameID,

  1473     const TRect& aOuterRect,

  1474     const TRect& aInnerRect,    

  1475     CEikImage*& aBubble )

  1476     {

  1477     

  1478     const CFbsBitmap* currentMask = aBubble->Mask();

  1479     TSize maskSize( currentMask->SizeInPixels() );

  1480     TRect rect( maskSize );

  1481     

  1482     // create transparency frame

  1483     CFbsBitmap* transparency = new(ELeave) CFbsBitmap;

  1484     CleanupStack::PushL( transparency );

  1485     User::LeaveIfError( transparency->Create( aOuterRect.Size(), 

  1486                                               EGray256 ) );

  1487     CFbsBitmapDevice* transparencyDev = CFbsBitmapDevice::NewL( transparency );

  1488     CleanupStack::PushL( transparencyDev );

  1489     CFbsBitGc* transparencyCtx;

  1490     User::LeaveIfError( transparencyDev->CreateContext( transparencyCtx ) );

  1491     CleanupStack::PushL( transparencyCtx );

  1492     MAknsSkinInstance* skin = AknsUtils::SkinInstance();

  1493     AknsDrawUtils::DrawFrame( skin,

  1494                               *transparencyCtx,

  1495                               aOuterRect,

  1496                               aInnerRect,

  1497                               aFrameID,

  1498                               KAknsIIDDefault,

  1499                               KAknsDrawParamDefault );

  1500     

  1501     CleanupStack::PopAndDestroy( 2, transparencyDev );

  1502             

  1503     // create solid black mask

  1504     CFbsBitmap* solidBlack = new(ELeave) CFbsBitmap;

  1505     CleanupStack::PushL( solidBlack );

  1506     User::LeaveIfError( solidBlack->Create( maskSize, EGray256 ) );

  1507     CFbsBitmapDevice* dev = CFbsBitmapDevice::NewL( solidBlack );

  1508     CleanupStack::PushL( dev );

  1509     CFbsBitGc* gc;

  1510     User::LeaveIfError( dev->CreateContext( gc ) ); 

  1511     CleanupStack::PushL( gc );

  1512     

  1513     gc->SetBrushColor( KRgbBlack );

  1514     gc->SetBrushStyle( CGraphicsContext::ESolidBrush );

  1515     gc->DrawRect( rect );

  1516     

  1517     // blit original mask on the black mask using transparency mask

  1518     gc->BitBltMasked( TPoint(0,0), 

  1519                       currentMask,

  1520                       TRect( currentMask->SizeInPixels() ), 

  1521                       transparency, 

  1522                       ETrue );

  1523  

  1524     CleanupStack::PopAndDestroy( 2, dev);

  1525     

  1526     CleanupStack::Pop(solidBlack);

  1527     aBubble->SetMask( solidBlack );

  1528         

  1529     CleanupStack::PopAndDestroy( transparency );

  1530     delete currentMask;

  1531     }

  1532 

  1533 // ---------------------------------------------------------------------------