1 /***************************************************************************/
5 /* High-level interface for the `PSNames' module (in charge of */
6 /* various functions related to Postscript glyph names conversion). */
8 /* Copyright 1996-2001 by */
9 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
11 /* This file is part of the FreeType project, and may only be used, */
12 /* modified, and distributed under the terms of the FreeType project */
13 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
14 /* this file you indicate that you have read the license and */
15 /* understand and accept it fully. */
17 /***************************************************************************/
25 #include FT_FREETYPE_H
31 /*************************************************************************/
34 /* PS_Unicode_Value_Func */
37 /* A function used to return the Unicode index corresponding to a */
38 /* given glyph name. */
41 /* glyph_name :: The glyph name. */
44 /* The Unicode character index resp. the non-Unicode value 0xFFFF if */
45 /* the glyph name has no known Unicode meaning. */
48 /* This function is able to map several different glyph names to the */
49 /* same Unicode value, according to the rules defined in the Adobe */
50 /* Glyph List table. */
52 /* This function will not be compiled if the configuration macro */
53 /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST is undefined. */
56 (*PS_Unicode_Value_Func)( const char* glyph_name );
59 /*************************************************************************/
62 /* PS_Unicode_Index_Func */
65 /* A function used to return the glyph index corresponding to a given */
69 /* num_glyphs :: The number of glyphs in the face. */
71 /* glyph_names :: An array of glyph name pointers. */
73 /* unicode :: The Unicode value. */
76 /* The glyph index resp. 0xFFFF if no glyph corresponds to this */
80 /* This function is able to recognize several glyph names per Unicode */
81 /* value, according to the Adobe Glyph List. */
83 /* This function will not be compiled if the configuration macro */
84 /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST is undefined. */
87 (*PS_Unicode_Index_Func)( FT_UInt num_glyphs,
88 const char** glyph_names,
92 /*************************************************************************/
95 /* PS_Macintosh_Name_Func */
98 /* A function used to return the glyph name corresponding to an Apple */
99 /* glyph name index. */
102 /* name_index :: The index of the Mac name. */
105 /* The glyph name, or 0 if the index is invalid. */
108 /* This function will not be compiled if the configuration macro */
109 /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES is undefined. */
112 (*PS_Macintosh_Name_Func)( FT_UInt name_index );
116 (*PS_Adobe_Std_Strings_Func)( FT_UInt string_index );
119 typedef struct PS_UniMap_
127 /*************************************************************************/
133 /* A simple table used to map Unicode values to glyph indices. It is */
134 /* built by the PS_Build_Unicodes table according to the glyphs */
135 /* present in a font file. */
138 /* num_codes :: The number of glyphs in the font that match a given */
141 /* unicodes :: An array of unicode values, sorted in increasing */
144 /* gindex :: An array of glyph indices, corresponding to each */
148 /* Use the function PS_Lookup_Unicode() to retrieve the glyph index */
149 /* corresponding to a given Unicode character code. */
151 typedef struct PS_Unicodes_
160 (*PS_Build_Unicodes_Func)( FT_Memory memory,
162 const char** glyph_names,
163 PS_Unicodes* unicodes );
166 (*PS_Lookup_Unicode_Func)( PS_Unicodes* unicodes,
170 /*************************************************************************/
173 /* PSNames_Interface */
176 /* This structure defines the PSNames interface. */
179 /* unicode_value :: A function used to convert a glyph name */
180 /* into a Unicode character code. */
182 /* build_unicodes :: A function which builds up the Unicode */
185 /* lookup_unicode :: A function used to return the glyph index */
186 /* corresponding to a given Unicode */
189 /* macintosh_name :: A function used to return the standard */
190 /* Apple glyph Postscript name corresponding */
191 /* to a given string index (used by the */
192 /* TrueType `post' table). */
194 /* adobe_std_strings :: A function that returns a pointer to a */
195 /* Adobe Standard String for a given SID. */
197 /* adobe_std_encoding :: A table of 256 unsigned shorts that maps */
198 /* character codes in the Adobe Standard */
199 /* Encoding to SIDs. */
201 /* adobe_expert_encoding :: A table of 256 unsigned shorts that maps */
202 /* character codes in the Adobe Expert */
203 /* Encoding to SIDs. */
206 /* `unicode_value' and `unicode_index' will be set to 0 if the */
207 /* configuration macro FT_CONFIG_OPTION_ADOBE_GLYPH_LIST is */
210 /* `macintosh_name' will be set to 0 if the configuration macro */
211 /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES is undefined. */
213 typedef struct PSNames_Interface_
215 PS_Unicode_Value_Func unicode_value;
216 PS_Build_Unicodes_Func build_unicodes;
217 PS_Lookup_Unicode_Func lookup_unicode;
218 PS_Macintosh_Name_Func macintosh_name;
220 PS_Adobe_Std_Strings_Func adobe_std_strings;
221 const unsigned short* adobe_std_encoding;
222 const unsigned short* adobe_expert_encoding;
229 #endif /* __PSNAMES_H__ */