1 /*

     2 * Copyright (c) 1996-2009 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 #ifndef __FNTSTD_H__

    20 #define __FNTSTD_H__

    21 

    22 #include <e32std.h>

    23 #include <graphics/shapeimpl.h>

    24 

    25 /**

    26 @internalComponent

    27 */

    28 enum TFntStorePanic

    29 	{

    30 	EFntTypefaceIndexOutOfRange,

    31 	EFntHeightIndexOutOfRange,

    32 	EFntNoTypefaces,

    33 	EFntNoTypefaceFontBitmaps,

    34 	EFntTypefaceHasNoFontBitmaps,

    35 	EFntFontBitmapNotLoaded,

    36 	EFntFontAccessCountNonZero,

    37 	EFntFontStoreFileInUse,

    38 	EFntKPixelHeightInTwipsZero,

    39 	EFntSessionCacheIndexOutOfRange,

    40 	EFntMetricsIndexOutOfBounds,

    41 	EFntNoFontFound,

    42 	EFntRemovingAlreadyDeletedLinkedFont,

    43 	EFntOverFlow,

    44 	};

    45 

    46 /**

    47 @internalComponent

    48 */

    49 GLREF_C void Panic(TFntStorePanic aPanic);

    50 

    51 // COpenFontSessionCacheList is placed here rather than openfont.cpp because it is used in fntstore.cpp as well.

    52 

    53 class COpenFontSessionCacheListItem;

    54 class COpenFont;

    55 

    56 #ifdef FNTSTORE_SUPPORT_FMM

    57 class COpenFontSessionCacheList

    58 /**

    59 @internalComponent

    60 */

    61 	{

    62 public:

    63 	inline COpenFontSessionCacheList();

    64 	void Delete(RHeap* aHeap);

    65 	void DeleteCache(RHeap* aHeap,TInt aSessionHandle);

    66 

    67 	COpenFontSessionCacheListItem* Start();

    68 	void SetStart(COpenFontSessionCacheListItem* aItem);

    69 

    70 	void DeleteFontGlyphs(RHeap* aHeap,const COpenFont* aFont);

    71 

    72 	TInt iStartOffset;

    73 	};

    74 

    75 inline COpenFontSessionCacheList::COpenFontSessionCacheList():

    76 	iStartOffset(0)

    77 	{

    78 	}

    79 #else

    80 class COpenFontSessionCacheList

    81 /**

    82 @internalComponent

    83 */

    84 	{

    85 	friend class COpenFont;

    86 

    87 	public:

    88 	inline COpenFontSessionCacheList();

    89 	void Delete(RHeap* aHeap);

    90 	void DeleteCache(RHeap* aHeap,TInt aSessionHandle);

    91 

    92 	private:

    93 	void DeleteFontGlyphs(RHeap* aHeap,const COpenFont* aFont);

    94 

    95 	COpenFontSessionCacheListItem* iStart;

    96 	};

    97 

    98 inline COpenFontSessionCacheList::COpenFontSessionCacheList():

    99 	iStart(NULL)

   100 	{

   101 	}

   102 #endif // FNTSTORE_SUPPORT_FMM

   103 

   104 /**

   105 @internalComponent

   106 */

   107 #ifdef __GCC32__

   108 #define PACKED_STRUCTURE_PREFIX

   109 #define PACKED_STRUCTURE_SUFFIX __attribute__(( __packed__))

   110 #elif defined(__ARMCC__)

   111 #define PACKED_STRUCTURE_PREFIX __packed

   112 #define PACKED_STRUCTURE_SUFFIX

   113 #else

   114 #define PACKED_STRUCTURE_PREFIX

   115 #define PACKED_STRUCTURE_SUFFIX

   116 #endif

   117 

   118 PACKED_STRUCTURE_PREFIX class TBitmapFontCharacterOffset

   119 /**

   120 Class to store an offset to the given position of a characters binary data in the 

   121 bitmap section of the font file.

   122 @internalComponent

   123 */

   124 

   125 	{

   126 public:

   127 	TBitmapFontCharacterOffset();

   128 	void InternalizeL(RReadStream& aStream);

   129 public:

   130 	TUint16 iBitmapOffset;  // restricts bitmap to 64k

   131 	} PACKED_STRUCTURE_SUFFIX;

   132 

   133 PACKED_STRUCTURE_PREFIX class TBitmapFontCharacterMetrics

   134 /**

   135 Character metrics stored in .GDR files.

   136 

   137 This structure cannot be changed without changing the format of bitmap font

   138 files (.GDR files). This is because a pointer to TBitmapFontCharacterMetrics is made to point

   139 to part of the .GDR file in ROM.

   140 @internalComponent

   141 */

   142 

   143 	{

   144 	public:

   145 	TBitmapFontCharacterMetrics();

   146 	void InternalizeL(RReadStream& aStream);

   147 

   148 	TInt8 iAscentInPixels;

   149 	TInt8 iHeightInPixels;

   150 	TInt8 iLeftAdjustInPixels;

   151 	TInt8 iMoveInPixels;

   152 	TInt8 iRightAdjustInPixels;

   153 	} PACKED_STRUCTURE_SUFFIX;

   154 

   155 #endif