1 /*

     2 * Copyright (c) 2004 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:  Series 60 layout font constructed from a font id.

    15 *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include <eikdef.h>

    21 #include <eikenv.h>

    22 #include <aknenv.h>

    23 #include "AknFontIdLayoutFont.h"

    24 #include <AknFontSpecification.h>

    25 #include <CdlEngine.h>

    26 

    27 #include <AknFontProvider.h>

    28 #include <AknFontProviderSuppliedMetrics.h>

    29 #include <AknFontId.h>

    30 

    31 // CONSTANTS

    32 

    33 // ============================ MEMBER FUNCTIONS ===============================

    34 

    35 EXPORT_C CAknFontIdLayoutFont* CAknFontIdLayoutFont::NewL( 

    36     CWsScreenDevice& aScreenDevice, 

    37     TInt aFontId )

    38     {

    39 	CAknFontIdLayoutFont* self = new (ELeave) CAknFontIdLayoutFont( aScreenDevice, aFontId);

    40 	CleanupStack::PushL(self);

    41 	self->ConstructL();

    42 	CleanupStack::Pop(); //self

    43 	return self;

    44     }

    45 

    46 CAknFontIdLayoutFont::~CAknFontIdLayoutFont()

    47     {

    48     }

    49 

    50 void CAknFontIdLayoutFont::ConstructL()

    51     {

    52     CAknLayoutFont::Update();

    53     }

    54 

    55 /** 

    56 * Implementation of the framework method for this class

    57 *

    58 */

    59 CFbsFont* CAknFontIdLayoutFont::SupplyFont ()

    60     {

    61     TAknFontProviderSuppliedMetrics info;

    62     CFbsFont* font(0);

    63 

    64     // Need to check if CDL is initialized if the font is not encoded

    65     TInt fontId;

    66     if ( TAknFontId::IsEncodedFont(iFontId) || CdlEngine::IsCdlEngineCreated() )

    67         {

    68         fontId = iFontId;

    69         }

    70     else

    71         {

    72         // Fall-back in case of no initialization whatsoever. Use the special fontid for this purpose

    73         fontId = TAknFontId::FontIdForStartupNormalFont();

    74         }

    75 

    76     TAknFontSpecification spec( fontId );

    77     // Use Font provisioning;

    78     font = AknFontProvider::CreateFontFromMetrics( BitmapDevice(), fontId, spec, info, iFontProviderId );

    79     SetTextPaneHeight( spec.TextPaneHeight() );

    80 

    81     SetExcessAscent( info.ExcessAscent() );

    82     SetExcessDescent( info.ExcessDescent() );

    83     SetBottomShortfall( info.MaxDescentToTextPaneBottom() );

    84  

    85     return font;

    86     }

    87     

    88 TAknTextDecorationMetrics CAknFontIdLayoutFont::DoTextDecorationMetrics() const

    89     {

    90     return TAknTextDecorationMetrics( iFontId );

    91     }

    92 

    93 TAknFontSpecification CAknFontIdLayoutFont::DoFontSpecification() const

    94     {

    95     return TAknFontSpecification( iFontId );

    96     }

    97 

    98 EXPORT_C TInt CAknFontIdLayoutFont::FontId() const

    99     { return iFontId;}

   100 

   101 EXPORT_C void CAknFontIdLayoutFont::UpdateId( TInt aFontId )

   102     {

   103     iFontId = aFontId;

   104     Update();

   105     };

   106 

   107 TInt CAknFontIdLayoutFont::DoAscentForCharacter( TChar aCharacter ) const

   108     {

   109     TInt ascent = AscentInPixels();

   110 

   111     if ( AknFontProvider::HasBaselineCorrection( iFontProviderId ) )

   112         {

   113         TInt baselineLift;

   114         TInt denominatorIfFractional;

   115         TInt err = AknFontProvider::BaselineDeltaForCharacter( iFontProviderId, 

   116                                                      aCharacter, 

   117                                                      baselineLift, 

   118                                                      denominatorIfFractional );

   119         if ( err == KErrNone )

   120             {

   121             if ( denominatorIfFractional > 0)

   122                 {

   123                 ascent -= ( baselineLift * ascent ) / denominatorIfFractional;

   124                 }

   125             else

   126                 {

   127                 ascent -= baselineLift;

   128                 }

   129             }

   130         }

   131     return ascent;

   132     }

   133 

   134 /**

   135 * C++ Constructor.

   136 */

   137 CAknFontIdLayoutFont::CAknFontIdLayoutFont( CWsScreenDevice& aScreenDevice, TInt aFontId ) : 

   138     CAknLayoutFont(aScreenDevice), iFontId(aFontId)

   139     {}

   140 

   141 void CAknFontIdLayoutFont::Reserved_1()

   142     {}

   143 

   144 //  End of File

   145