ftsnames.h

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00001 /***************************************************************************/
00002 /*                                                                         */
00003 /*  ftsnames.h                                                             */
00004 /*                                                                         */
00005 /*    Simple interface to access SFNT name tables (which are used          */
00006 /*    to hold font names, copyright info, notices, etc.) (specification).  */
00007 /*                                                                         */
00008 /*    This is _not_ used to retrieve glyph names!                          */
00009 /*                                                                         */
00010 /*  Copyright 1996-2001, 2002, 2003, 2006, 2009, 2010 by                   */
00011 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
00012 /*                                                                         */
00013 /*  This file is part of the FreeType project, and may only be used,       */
00014 /*  modified, and distributed under the terms of the FreeType project      */
00015 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
00016 /*  this file you indicate that you have read the license and              */
00017 /*  understand and accept it fully.                                        */
00018 /*                                                                         */
00019 /***************************************************************************/
00020 
00021 
00022 #ifndef __FT_SFNT_NAMES_H__
00023 #define __FT_SFNT_NAMES_H__
00024 
00025 
00026 #include <ft2build.h>
00027 #include FT_FREETYPE_H
00028 
00029 #ifdef FREETYPE_H
00030 #error "freetype.h of FreeType 1 has been loaded!"
00031 #error "Please fix the directory search order for header files"
00032 #error "so that freetype.h of FreeType 2 is found first."
00033 #endif
00034 
00035 
00036 FT_BEGIN_HEADER
00037 
00038 
00039   /*************************************************************************/
00040   /*                                                                       */
00041   /* <Section>                                                             */
00042   /*    sfnt_names                                                         */
00043   /*                                                                       */
00044   /* <Title>                                                               */
00045   /*    SFNT Names                                                         */
00046   /*                                                                       */
00047   /* <Abstract>                                                            */
00048   /*    Access the names embedded in TrueType and OpenType files.          */
00049   /*                                                                       */
00050   /* <Description>                                                         */
00051   /*    The TrueType and OpenType specifications allow the inclusion of    */
00052   /*    a special `names table' in font files.  This table contains        */
00053   /*    textual (and internationalized) information regarding the font,    */
00054   /*    like family name, copyright, version, etc.                         */
00055   /*                                                                       */
00056   /*    The definitions below are used to access them if available.        */
00057   /*                                                                       */
00058   /*    Note that this has nothing to do with glyph names!                 */
00059   /*                                                                       */
00060   /*************************************************************************/
00061 
00062 
00063   /*************************************************************************/
00064   /*                                                                       */
00065   /* <Struct>                                                              */
00066   /*    FT_SfntName                                                        */
00067   /*                                                                       */
00068   /* <Description>                                                         */
00069   /*    A structure used to model an SFNT `name' table entry.              */
00070   /*                                                                       */
00071   /* <Fields>                                                              */
00072   /*    platform_id :: The platform ID for `string'.                       */
00073   /*                                                                       */
00074   /*    encoding_id :: The encoding ID for `string'.                       */
00075   /*                                                                       */
00076   /*    language_id :: The language ID for `string'.                       */
00077   /*                                                                       */
00078   /*    name_id     :: An identifier for `string'.                         */
00079   /*                                                                       */
00080   /*    string      :: The `name' string.  Note that its format differs    */
00081   /*                   depending on the (platform,encoding) pair.  It can  */
00082   /*                   be a Pascal String, a UTF-16 one, etc.              */
00083   /*                                                                       */
00084   /*                   Generally speaking, the string is not               */
00085   /*                   zero-terminated.  Please refer to the TrueType      */
00086   /*                   specification for details.                          */
00087   /*                                                                       */
00088   /*    string_len  :: The length of `string' in bytes.                    */
00089   /*                                                                       */
00090   /* <Note>                                                                */
00091   /*    Possible values for `platform_id', `encoding_id', `language_id',   */
00092   /*    and `name_id' are given in the file `ttnameid.h'.  For details     */
00093   /*    please refer to the TrueType or OpenType specification.            */
00094   /*                                                                       */
00095   /*    See also @TT_PLATFORM_XXX, @TT_APPLE_ID_XXX, @TT_MAC_ID_XXX,       */
00096   /*    @TT_ISO_ID_XXX, and @TT_MS_ID_XXX.                                 */
00097   /*                                                                       */
00098   typedef struct  FT_SfntName_
00099   {
00100     FT_UShort  platform_id;
00101     FT_UShort  encoding_id;
00102     FT_UShort  language_id;
00103     FT_UShort  name_id;
00104 
00105     FT_Byte*   string;      /* this string is *not* null-terminated! */
00106     FT_UInt    string_len;  /* in bytes */
00107 
00108   } FT_SfntName;
00109 
00110 
00111   /*************************************************************************/
00112   /*                                                                       */
00113   /* <Function>                                                            */
00114   /*    FT_Get_Sfnt_Name_Count                                             */
00115   /*                                                                       */
00116   /* <Description>                                                         */
00117   /*    Retrieve the number of name strings in the SFNT `name' table.      */
00118   /*                                                                       */
00119   /* <Input>                                                               */
00120   /*    face :: A handle to the source face.                               */
00121   /*                                                                       */
00122   /* <Return>                                                              */
00123   /*    The number of strings in the `name' table.                         */
00124   /*                                                                       */
00125   FT_EXPORT( FT_UInt )
00126   FT_Get_Sfnt_Name_Count( FT_Face  face );
00127 
00128 
00129   /*************************************************************************/
00130   /*                                                                       */
00131   /* <Function>                                                            */
00132   /*    FT_Get_Sfnt_Name                                                   */
00133   /*                                                                       */
00134   /* <Description>                                                         */
00135   /*    Retrieve a string of the SFNT `name' table for a given index.      */
00136   /*                                                                       */
00137   /* <Input>                                                               */
00138   /*    face  :: A handle to the source face.                              */
00139   /*                                                                       */
00140   /*    idx   :: The index of the `name' string.                           */
00141   /*                                                                       */
00142   /* <Output>                                                              */
00143   /*    aname :: The indexed @FT_SfntName structure.                       */
00144   /*                                                                       */
00145   /* <Return>                                                              */
00146   /*    FreeType error code.  0~means success.                             */
00147   /*                                                                       */
00148   /* <Note>                                                                */
00149   /*    The `string' array returned in the `aname' structure is not        */
00150   /*    null-terminated.  The application should deallocate it if it is no */
00151   /*    longer in use.                                                     */
00152   /*                                                                       */
00153   /*    Use @FT_Get_Sfnt_Name_Count to get the total number of available   */
00154   /*    `name' table entries, then do a loop until you get the right       */
00155   /*    platform, encoding, and name ID.                                   */
00156   /*                                                                       */
00157   FT_EXPORT( FT_Error )
00158   FT_Get_Sfnt_Name( FT_Face       face,
00159                     FT_UInt       idx,
00160                     FT_SfntName  *aname );
00161 
00162 
00163   /***************************************************************************
00164    *
00165    * @constant:
00166    *   FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY
00167    *
00168    * @description:
00169    *   A constant used as the tag of @FT_Parameter structures to make
00170    *   FT_Open_Face() ignore preferred family subfamily names in `name'
00171    *   table since OpenType version 1.4.  For backwards compatibility with
00172    *   legacy systems which has 4-face-per-family restriction.
00173    *
00174    */
00175 #define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY  FT_MAKE_TAG( 'i', 'g', 'p', 'f' )
00176 
00177 
00178   /***************************************************************************
00179    *
00180    * @constant:
00181    *   FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY
00182    *
00183    * @description:
00184    *   A constant used as the tag of @FT_Parameter structures to make
00185    *   FT_Open_Face() ignore preferred subfamily names in `name' table since
00186    *   OpenType version 1.4.  For backwards compatibility with legacy
00187    *   systems which has 4-face-per-family restriction.
00188    *
00189    */
00190 #define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY  FT_MAKE_TAG( 'i', 'g', 'p', 's' )
00191 
00192   /* */
00193 
00194 
00195 FT_END_HEADER
00196 
00197 #endif /* __FT_SFNT_NAMES_H__ */
00198 
00199 
00200 /* END */

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