1 //========================================================================
5 // Copyright 1999-2003 Glyph & Cog, LLC
7 //========================================================================
10 #define FOFITRUETYPE_H
14 #ifdef USE_GCC_PRAGMAS
26 //------------------------------------------------------------------------
28 //------------------------------------------------------------------------
30 class FoFiTrueType
: public FoFiBase
{
33 // Create a FoFiTrueType object from a memory buffer.
34 static FoFiTrueType
*make(char *fileA
, int lenA
);
36 // Create a FoFiTrueType object from a file on disk.
37 static FoFiTrueType
*load(char *fileName
);
39 virtual ~FoFiTrueType();
41 // Return the number of cmaps defined by this font.
44 // Return the platform ID of the <i>th cmap.
45 int getCmapPlatform(int i
);
47 // Return the encoding ID of the <i>th cmap.
48 int getCmapEncoding(int i
);
50 // Return the index of the cmap for <platform>, <encoding>. Returns
51 // -1 if there is no corresponding cmap.
52 int findCmap(int platform
, int encoding
);
54 // Return the GID corresponding to <c> according to the <i>th cmap.
55 Gushort
mapCodeToGID(int i
, int c
);
57 // Returns the GID corresponding to <name> according to the post
58 // table. Returns 0 if there is no mapping for <name> or if the
59 // font does not have a post table.
60 int mapNameToGID(char *name
);
62 // Returns the least restrictive embedding licensing right (as
63 // defined by the TrueType spec):
64 // * 4: OS/2 table is missing or invalid
65 // * 3: installable embedding
66 // * 2: editable embedding
67 // * 1: preview & print embedding
68 // * 0: restricted license embedding
69 int getEmbeddingRights();
71 // Convert to a Type 42 font, suitable for embedding in a PostScript
72 // file. <psName> will be used as the PostScript font name (so we
73 // don't need to depend on the 'name' table in the font). The
74 // <encoding> array specifies the mapping from char codes to names.
75 // If <encoding> is NULL, the encoding is unknown or undefined. The
76 // <codeToGID> array specifies the mapping from char codes to GIDs.
77 void convertToType42(char *psName
, char **encoding
,
79 FoFiOutputFunc outputFunc
, void *outputStream
);
81 // Convert to a Type 2 CIDFont, suitable for embedding in a
82 // PostScript file. <psName> will be used as the PostScript font
83 // name (so we don't need to depend on the 'name' table in the
84 // font). The <cidMap> array maps CIDs to GIDs; it has <nCIDs>
86 void convertToCIDType2(char *psName
, Gushort
*cidMap
, int nCIDs
,
87 GBool needVerticalMetrics
,
88 FoFiOutputFunc outputFunc
, void *outputStream
);
90 // Convert to a Type 0 (but non-CID) composite font, suitable for
91 // embedding in a PostScript file. <psName> will be used as the
92 // PostScript font name (so we don't need to depend on the 'name'
93 // table in the font). The <cidMap> array maps CIDs to GIDs; it has
95 void convertToType0(char *psName
, Gushort
*cidMap
, int nCIDs
,
96 GBool needVerticalMetrics
,
97 FoFiOutputFunc outputFunc
, void *outputStream
);
99 // Write a clean TTF file, filling in missing tables and correcting
100 // various other errors. If <name> is non-NULL, the font is renamed
101 // to <name>. If <codeToGID> is non-NULL, the font is re-encoded,
102 // using a Windows Unicode cmap. If <name> is NULL and the font is
103 // complete and correct, it will be written unmodified.
104 void writeTTF(FoFiOutputFunc outputFunc
, void *outputStream
,
105 char *name
= NULL
, Gushort
*codeToGID
= NULL
);
109 FoFiTrueType(char *fileA
, int lenA
, GBool freeFileDataA
);
110 void cvtEncoding(char **encoding
,
111 FoFiOutputFunc outputFunc
,
113 void cvtCharStrings(char **encoding
,
115 FoFiOutputFunc outputFunc
,
117 void cvtSfnts(FoFiOutputFunc outputFunc
,
118 void *outputStream
, GString
*name
,
119 GBool needVerticalMetrics
);
120 void dumpString(Guchar
*s
, int length
,
121 FoFiOutputFunc outputFunc
,
123 Guint
computeTableChecksum(Guchar
*data
, int length
);
125 void readPostTable();
126 int seekTable(char *tag
);
128 TrueTypeTable
*tables
;