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

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• Hash : f546bacd
  Author :
  Date : 2004-02-01T16:59:06
  

  * src/sfnt/Jamfile: removing "ttcmap" from the list of sources * src/cache/*, include/freetype/cache/*: fixing a bug after heavy testing. The current sources are now "release candidates" for the final version of the cache sub-system * Jamfile: updating "refdoc" target, and adding "autohint" to the list of modules to build. Both the autohinter and autofitter will be built by default. But which one will be used is determined by the content of "ftmodule.h" * src/autofit/*: much updates, but the code is still buggy as hell. Aargh..

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• src/autofit/aflatin.h

• #ifndef __AFLATIN_H__
  #define __AFLATIN_H__
  
  #include "afhints.h"
  
  FT_BEGIN_HEADER
  
   /*
    * the latin-specific script class
    *
    */
    FT_LOCAL( const AF_ScriptClassRec )    af_latin_script_class;
  
   /***************************************************************************/
   /***************************************************************************/
   /*****                                                                 *****/
   /*****       L A T I N   G L O B A L   M E T R I C S                   *****/
   /*****                                                                 *****/
   /***************************************************************************/
   /***************************************************************************/
  
   /*
    * the following declarations could be embedded in the file "aflatin.c"
    * they've been made semi-public to allow alternate script hinters to
    * re-use some of them
    */
  
   /*
    *  Latin (global) metrics management
    *
    */
  
    enum
    {
      AF_LATIN_BLUE_CAPITAL_TOP,
      AF_LATIN_BLUE_CAPITAL_BOTTOM,
      AF_LATIN_BLUE_SMALL_F_TOP,
      AF_LATIN_BLUE_SMALL_TOP,
      AF_LATIN_BLUE_SMALL_BOTTOM,
      AF_LATIN_BLUE_SMALL_MINOR,
  
      AF_LATIN_BLUE_MAX
    };
  
  #define AF_LATIN_IS_TOP_BLUE( b )  ( (b) == AF_LATIN_BLUE_CAPITAL_TOP || \
                                       (b) == AF_LATIN_BLUE_SMALL_F_TOP || \
                                       (b) == AF_LATIN_BLUE_SMALL_TOP   )
  
  #define  AF_LATIN_MAX_WIDTHS     16
  #define  AF_LATIN_MAX_BLUES      AF_LATIN_BLUE_MAX
  
    enum
    {
      AF_LATIN_BLUE_ACTIVE = (1 << 0),
      AF_LATIN_BLUE_TOP    = (1 << 1),
  
      AF_LATIN_BLUE_FLAG_MAX
    };
  
  
    typedef struct AF_LatinBlueRec_
    {
      AF_WidthRec   ref;
      AF_WidthRec   shoot;
      FT_UInt       flags;
  
    } AF_LatinBlueRec, *AF_LatinBlue;
  
  
    typedef struct AF_LatinAxisRec_
    {
      FT_Fixed         scale;
      FT_Pos           delta;
  
      FT_UInt          width_count;
      AF_WidthRec      widths[ AF_LATIN_MAX_WIDTHS ];
      FT_Pos           edge_distance_threshold;
  
     /* ignored for horizontal metrics */
      FT_Bool          control_overshoot;
      FT_UInt          blue_count;
      AF_LatinBlueRec  blues[ AF_LATIN_BLUE_MAX ];
  
      FT_Fixed         org_scale;
      FT_Pos           org_delta;
  
    } AF_LatinAxisRec, *AF_LatinAxis;
  
  
    typedef struct AF_LatinMetricsRec_
    {
      AF_ScriptMetricsRec   root;
      FT_UInt               units_per_em;
      AF_LatinAxisRec       axis[ AF_DIMENSION_MAX ];
      AF_ScalerRec          scaler;
  
    } AF_LatinMetricsRec, *AF_LatinMetrics;
  
  
  
    FT_LOCAL( FT_Error )
    af_latin_metrics_init( AF_LatinMetrics  metrics,
                           FT_Face          face );
  
    FT_LOCAL( void )
    af_latin_metrics_scale( AF_LatinMetrics  metrics,
                            AF_Scaler        scaler );
  
  
  
   /***************************************************************************/
   /***************************************************************************/
   /*****                                                                 *****/
   /*****            L A T I N   G L Y P H   A N A L Y S I S              *****/
   /*****                                                                 *****/
   /***************************************************************************/
   /***************************************************************************/
  
    enum
    {
      AF_LATIN_HINTS_HORZ_SNAP   = (1 << 0),  /* enable stem width snapping  */
      AF_LATIN_HINTS_VERT_SNAP   = (1 << 1),  /* enable stem height snapping */
      AF_LATIN_HINTS_STEM_ADJUST = (1 << 2),  /* enable stem width/height adjustment */
      AF_LATIN_HINTS_MONO        = (1 << 3)   /* indicate monochrome rendering */
    };
  
  #define  AF_LATIN_HINTS_DO_HORZ_SNAP(h) \
     AF_HINTS_TEST_OTHER(h,AF_LATIN_HINTS_HORZ_SNAP)
  
  #define  AF_LATIN_HINTS_DO_VERT_SNAP(h) \
     AF_HINTS_TEST_OTHER(h,AF_LATIN_HINTS_VERT_SNAP)
  
  #define  AF_LATIN_HINTS_DO_STEM_ADJUST(h)  \
     AF_HINTS_TEST_OTHER(h,AF_LATIN_HINTS_STEM_ADJUST)
  
  #define  AF_LATIN_HINTS_DO_MONO(h)  \
     AF_HINTS_TEST_OTHER(h,AF_LATIN_HINTS_MONO)
  
  
   /* this shouldn't normally be exported. However, other scripts might
    * like to use this function as-is
    */
    FT_LOCAL( void )
    af_latin_hints_compute_segments( AF_GlyphHints  hints,
                                     AF_Dimension   dim );
  
   /* this shouldn't normally be exported. However, other scripts might
    * want to use this function as-is
    */
    FT_LOCAL( void )
    af_latin_hints_link_segments( AF_GlyphHints  hints,
                                  AF_Dimension   dim );
  
   /* this shouldn't normally be exported. However, other scripts might
    * want to use this function as-is
    */
    FT_LOCAL( void )
    af_latin_hints_compute_edges( AF_GlyphHints  hints,
                                  AF_Dimension   dim );
  
    FT_LOCAL( void )
    af_latin_hints_detect_features( AF_GlyphHints  hints,
                                    AF_Dimension   dim );
  
  /* */
  
  FT_END_HEADER
  
  #endif /* __AFLATIN_H__ */
  

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