1 /*

     2 * Copyright (c) 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:  

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #include <gdi.h>

    22 #include <fbs.h>

    23 

    24 #include <activepalette2graphics.mbg>

    25 

    26 #include "ActivePalette2Logger.h"

    27 #include "ActivePalette2Cfg.h"

    28 #include "ActivePalette2Utils.h"

    29 #include "ActivePalette2SemiTransparentFadingStyler.h"

    30 

    31 

    32 static const TInt KAlphaMask = 0xFF;

    33 

    34 // -----------------------------------------------------------------------------

    35 // 2-phase constructor <<static>>

    36 // -----------------------------------------------------------------------------

    37 //

    38 CActivePalette2SemiTransparentFadingStyler* 

    39 CActivePalette2SemiTransparentFadingStyler::NewL()

    40   {

    41   CActivePalette2SemiTransparentFadingStyler* self = 

    42       new (ELeave) CActivePalette2SemiTransparentFadingStyler();

    43 

    44   CleanupStack::PushL(self);

    45   self->ConstructL();

    46   CleanupStack::Pop( self );

    47 

    48   return self;

    49   }

    50 

    51 // -----------------------------------------------------------------------------

    52 // Destructor <<virtual>>

    53 // -----------------------------------------------------------------------------

    54 //

    55 CActivePalette2SemiTransparentFadingStyler

    56 ::~CActivePalette2SemiTransparentFadingStyler()

    57   {

    58   ReleaseTooltipBuf();

    59   }

    60 

    61 

    62 // -----------------------------------------------------------------------------

    63 // BlitTooltip <<virtual>>

    64 // -----------------------------------------------------------------------------

    65 //

    66 void 

    67 CActivePalette2SemiTransparentFadingStyler

    68 ::BlitTooltip( CBitmapContext* aGc, 

    69                const TPoint&   aPos, 

    70                TInt            aCurrentPhase, 

    71                TInt            aTotalPhases )

    72   {

    73   TInt alpha_orig  = ( KAlphaMask * aCurrentPhase ) / aTotalPhases;

    74   TInt alpha_value = alpha_orig & KAlphaMask; // Limit to 0..255

    75   TRgb alpha       = TRgb::Gray256( alpha_value );

    76 

    77   LOGTEXT1( _L("CActivePalette2SemiTransparentFadingStyler::BlitTooltip, alpha=%d"), alpha_value );

    78 

    79   iTooltipAlphaContext->SetBrushColor( alpha );

    80   iTooltipAlphaContext->SetBrushStyle( CGraphicsContext::ESolidBrush );

    81   iTooltipAlphaContext->Clear();

    82 

    83   iTooltipBlendedMaskContext->SetBrushColor( KRgbBlack );

    84   iTooltipBlendedMaskContext->SetBrushStyle( CGraphicsContext::ESolidBrush );

    85   iTooltipBlendedMaskContext->Clear();

    86   iTooltipBlendedMaskContext->BitBltMasked( TPoint( 0,0 ), 

    87                                             iTooltipAlphaBitmap, 

    88                                             TooltipSize(),

    89                                             iTooltipBufMaskBitmap, 

    90                                             EFalse );

    91 

    92   aGc->BitBltMasked( aPos, 

    93                      iTooltipBufBitmap, 

    94                      TooltipSize(),

    95                      iTooltipBlendedMaskBitmap, 

    96                      EFalse );

    97   }

    98 

    99 

   100 

   101     

   102 // -----------------------------------------------------------------------------

   103 // TooltipNoseMaskId <<virtual>>

   104 // -----------------------------------------------------------------------------

   105 //

   106 TInt 

   107 CActivePalette2SemiTransparentFadingStyler::TooltipNoseMaskId()

   108   {

   109   return EMbmActivepalette2graphicsQgn_graf_cam4_tb_tooltip_end_mask;

   110   }

   111     

   112 // -----------------------------------------------------------------------------

   113 // TooltipBodyMaskId <<virtual>>

   114 // -----------------------------------------------------------------------------

   115 //

   116 TInt 

   117 CActivePalette2SemiTransparentFadingStyler::TooltipBodyMaskId()

   118   {

   119   return EMbmActivepalette2graphicsQgn_graf_cam4_tb_tooltip_body_mask;

   120   }

   121 

   122 

   123 // -----------------------------------------------------------------------------

   124 // AllocateTooltipBufL <<virtual>>

   125 // -----------------------------------------------------------------------------

   126 //

   127 void 

   128 CActivePalette2SemiTransparentFadingStyler::AllocateTooltipBufL()

   129   {

   130   ReleaseTooltipBuf();

   131 

   132   ActivePalette2Utils::CreateDrawingObjectsL( TooltipSize(),

   133                                               &iTooltipBufBitmap,

   134                                               &iTooltipBufDevice,

   135                                               &iTooltipBufContext );

   136 

   137   ActivePalette2Utils::CreateDrawingObjectsL( EGray2,

   138                                               TooltipSize(),

   139                                               &iTooltipBufMaskBitmap,

   140                                               &iTooltipBufMaskDevice,

   141                                               &iTooltipBufMaskContext );

   142 

   143   ActivePalette2Utils::CreateDrawingObjectsL( EGray256, 

   144                                               TooltipSize(),

   145                                               &iTooltipAlphaBitmap,

   146                                               &iTooltipAlphaDevice,

   147                                               &iTooltipAlphaContext );

   148 

   149   ActivePalette2Utils::CreateDrawingObjectsL( EGray256, 

   150                                               TooltipSize(),

   151                                               &iTooltipBlendedMaskBitmap,

   152                                               &iTooltipBlendedMaskDevice,

   153                                               &iTooltipBlendedMaskContext );

   154   }

   155 

   156 // -----------------------------------------------------------------------------

   157 // ReleaseTooltipBuf <<virtual>>

   158 // -----------------------------------------------------------------------------

   159 //

   160 void 

   161 CActivePalette2SemiTransparentFadingStyler::ReleaseTooltipBuf()

   162   {

   163   ActivePalette2Utils::DeleteDrawingObjects( &iTooltipBufBitmap,

   164                                              &iTooltipBufDevice,

   165                                              &iTooltipBufContext );

   166 

   167   ActivePalette2Utils::DeleteDrawingObjects( &iTooltipBufMaskBitmap,

   168                                              &iTooltipBufMaskDevice,

   169                                              &iTooltipBufMaskContext );

   170 

   171   ActivePalette2Utils::DeleteDrawingObjects( &iTooltipAlphaBitmap,

   172                                              &iTooltipAlphaDevice,

   173                                              &iTooltipAlphaContext );

   174 

   175   ActivePalette2Utils::DeleteDrawingObjects( &iTooltipBlendedMaskBitmap,

   176                                              &iTooltipBlendedMaskDevice,

   177                                              &iTooltipBlendedMaskContext );

   178   }

   179