kc3-lang/freetype/src/autofit/afstyles.h

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• Hash : d3cba0ed
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  Date : 2015-09-04T10:28:53
  

  [autofit] Redesign code ranges (2/2). This commit adds two fallback scripts (`latb', `latp') and implements support for the no-base character ranges introduced in the previous commit. * src/autofit/aftypes.h (AF_ScriptClassRec): Add `script_uni_nobase_ranges' field. (AF_DEFINE_SCRIPT_CLASS): Updated. * src/autofit/afscript.h, src/autofit/afstyles.h: Add `latb' and `latp' fallback scripts. * src/autofit/afblue.dat: Add blue zones for Latin subscript and superscript fallback scripts. * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. * src/autofit/afglobal.h (AF_NOBASE): New style flag for no-base characters. (AF_STYLE_MASK): Updated. * src/autofit/afglobal.c (SCRIPT): Updated. (af_face_globals_compute_style_coverage): Handle new style flag. * src/autofit/aflatin.c (af_latin_hints_apply): Handle new style flag. * src/autofit/afranges.h (SCRIPT): Use it to export no-base ranges.

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• src/autofit/afstyles.h

• /***************************************************************************/
  /*                                                                         */
  /*  afstyles.h                                                             */
  /*                                                                         */
  /*    Auto-fitter styles (specification only).                             */
  /*                                                                         */
  /*  Copyright 2013-2015 by                                                 */
  /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  /*                                                                         */
  /*  This file is part of the FreeType project, and may only be used,       */
  /*  modified, and distributed under the terms of the FreeType project      */
  /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  /*  this file you indicate that you have read the license and              */
  /*  understand and accept it fully.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
    /* The following part can be included multiple times. */
    /* Define `STYLE' as needed.                          */
  
  
    /* Add new styles here.  The first and second arguments are the  */
    /* style name in lowercase and uppercase, respectively, followed */
    /* by a description string.  The next arguments are the          */
    /* corresponding writing system, script, blue stringset, and     */
    /* coverage.                                                     */
    /*                                                               */
    /* Note that styles using `AF_COVERAGE_DEFAULT' should always    */
    /* come after styles with other coverages.  Also note that       */
    /* fallback scripts only use `AF_COVERAGE_DEFAULT' for its       */
    /* style.                                                        */
    /*                                                               */
    /* Example:                                                      */
    /*                                                               */
    /*   STYLE( cyrl_dflt, CYRL_DFLT,                                */
    /*          "Cyrillic default style",                            */
    /*          AF_WRITING_SYSTEM_LATIN,                             */
    /*          AF_SCRIPT_CYRL,                                      */
    /*          AF_BLUE_STRINGSET_CYRL,                              */
    /*          AF_COVERAGE_DEFAULT )                                */
  
  #undef  STYLE_LATIN
  #define STYLE_LATIN( s, S, f, F, ds, df, C ) \
            STYLE( s ## _ ## f, S ## _ ## F,   \
                   ds " " df " style",         \
                   AF_WRITING_SYSTEM_LATIN,    \
                   AF_SCRIPT_ ## S,            \
                   AF_BLUE_STRINGSET_ ## S,    \
                   AF_COVERAGE_ ## C )
  
  #undef  META_STYLE_LATIN
  #define META_STYLE_LATIN( s, S, ds )                     \
            STYLE_LATIN( s, S, c2cp, C2CP, ds,             \
                         "petite capticals from capitals", \
                         PETITE_CAPITALS_FROM_CAPITALS )   \
            STYLE_LATIN( s, S, c2sc, C2SC, ds,             \
                         "small capticals from capitals",  \
                         SMALL_CAPITALS_FROM_CAPITALS )    \
            STYLE_LATIN( s, S, ordn, ORDN, ds,             \
                         "ordinals",                       \
                         ORDINALS )                        \
            STYLE_LATIN( s, S, pcap, PCAP, ds,             \
                         "petite capitals",                \
                         PETITE_CAPITALS )                 \
            STYLE_LATIN( s, S, sinf, SINF, ds,             \
                         "scientific inferiors",           \
                         SCIENTIFIC_INFERIORS )            \
            STYLE_LATIN( s, S, smcp, SMCP, ds,             \
                         "small capitals",                 \
                         SMALL_CAPITALS )                  \
            STYLE_LATIN( s, S, subs, SUBS, ds,             \
                         "subscript",                      \
                         SUBSCRIPT )                       \
            STYLE_LATIN( s, S, sups, SUPS, ds,             \
                         "superscript",                    \
                         SUPERSCRIPT )                     \
            STYLE_LATIN( s, S, titl, TITL, ds,             \
                         "titling",                        \
                         TITLING )                         \
            STYLE_LATIN( s, S, dflt, DFLT, ds,             \
                         "default",                        \
                         DEFAULT )
  
  
    STYLE( arab_dflt, ARAB_DFLT,
           "Arabic default style",
           AF_WRITING_SYSTEM_LATIN,
           AF_SCRIPT_ARAB,
           AF_BLUE_STRINGSET_ARAB,
           AF_COVERAGE_DEFAULT )
  
    META_STYLE_LATIN( cyrl, CYRL, "Cyrillic" )
  
    STYLE( deva_dflt, DEVA_DFLT,
           "Devanagari default style",
           AF_WRITING_SYSTEM_LATIN,
           AF_SCRIPT_DEVA,
           AF_BLUE_STRINGSET_DEVA,
           AF_COVERAGE_DEFAULT )
  
    META_STYLE_LATIN( grek, GREK, "Greek" )
  
    STYLE( hebr_dflt, HEBR_DFLT,
           "Hebrew default style",
           AF_WRITING_SYSTEM_LATIN,
           AF_SCRIPT_HEBR,
           AF_BLUE_STRINGSET_HEBR,
           AF_COVERAGE_DEFAULT )
  
    META_STYLE_LATIN( latn, LATN, "Latin" )
  
    STYLE( latb_dflt, LATB_DFLT,
           "Latin subscript fallback default style",
           AF_WRITING_SYSTEM_LATIN,
           AF_SCRIPT_LATB,
           AF_BLUE_STRINGSET_LATB,
           AF_COVERAGE_DEFAULT )
  
    STYLE( latp_dflt, LATP_DFLT,
           "Latin superscript fallback default style",
           AF_WRITING_SYSTEM_LATIN,
           AF_SCRIPT_LATP,
           AF_BLUE_STRINGSET_LATP,
           AF_COVERAGE_DEFAULT )
  
  #ifdef FT_OPTION_AUTOFIT2
    STYLE( ltn2_dflt, LTN2_DFLT,
           "Latin 2 default style",
           AF_WRITING_SYSTEM_LATIN2,
           AF_SCRIPT_LATN,
           AF_BLUE_STRINGSET_LATN,
           AF_COVERAGE_DEFAULT )
  #endif
  
    STYLE( none_dflt, NONE_DFLT,
           "no style",
           AF_WRITING_SYSTEM_DUMMY,
           AF_SCRIPT_NONE,
           (AF_Blue_Stringset)0,
           AF_COVERAGE_DEFAULT )
  
    STYLE( telu_dflt, TELU_DFLT,
           "Telugu default style",
           AF_WRITING_SYSTEM_LATIN,
           AF_SCRIPT_TELU,
           AF_BLUE_STRINGSET_TELU,
           AF_COVERAGE_DEFAULT )
  
    STYLE( thai_dflt, THAI_DFLT,
           "Thai default style",
           AF_WRITING_SYSTEM_LATIN,
           AF_SCRIPT_THAI,
           AF_BLUE_STRINGSET_THAI,
           AF_COVERAGE_DEFAULT )
  
  #ifdef AF_CONFIG_OPTION_INDIC
  
    /* no blue stringset support for the Indic writing system yet */
  #undef  STYLE_DEFAULT_INDIC
  #define STYLE_DEFAULT_INDIC( s, S, d )    \
            STYLE( s ## _dflt, S ## _DFLT,  \
                   d " default style",      \
                   AF_WRITING_SYSTEM_INDIC, \
                   AF_SCRIPT_ ## S,         \
                   (AF_Blue_Stringset)0,    \
                   AF_COVERAGE_DEFAULT )
  
    STYLE_DEFAULT_INDIC( beng, BENG, "Bengali" )
    STYLE_DEFAULT_INDIC( gujr, GUJR, "Gujarati" )
    STYLE_DEFAULT_INDIC( guru, GURU, "Gurmukhi" )
    STYLE_DEFAULT_INDIC( knda, KNDA, "Kannada" )
    STYLE_DEFAULT_INDIC( limb, LIMB, "Limbu" )
    STYLE_DEFAULT_INDIC( mlym, MLYM, "Malayalam" )
    STYLE_DEFAULT_INDIC( orya, ORYA, "Oriya" )
    STYLE_DEFAULT_INDIC( sinh, SINH, "Sinhala" )
    STYLE_DEFAULT_INDIC( sund, SUND, "Sundanese" )
    STYLE_DEFAULT_INDIC( sylo, SYLO, "Syloti Nagri" )
    STYLE_DEFAULT_INDIC( taml, TAML, "Tamil" )
    STYLE_DEFAULT_INDIC( tibt, TIBT, "Tibetan" )
  
  #endif /* AF_CONFIG_OPTION_INDIC */
  
  #ifdef AF_CONFIG_OPTION_CJK
  
    STYLE( hani_dflt, HANI_DFLT,
           "CJKV ideographs default style",
           AF_WRITING_SYSTEM_CJK,
           AF_SCRIPT_HANI,
           AF_BLUE_STRINGSET_HANI,
           AF_COVERAGE_DEFAULT )
  
  #endif /* AF_CONFIG_OPTION_CJK */
  
  
  /* END */
  

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