kc3-lang/harfbuzz/src/hb-subset.h

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• Hash : f9d8e4a9
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  Date : 2021-07-29T15:25:41
  

  [subset] switch ..._set_flags to not take a mask.
  

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• src/hb-subset.h

• /*
   * Copyright © 2018  Google, Inc.
   *
   *  This is part of HarfBuzz, a text shaping library.
   *
   * Permission is hereby granted, without written agreement and without
   * license or royalty fees, to use, copy, modify, and distribute this
   * software and its documentation for any purpose, provided that the
   * above copyright notice and the following two paragraphs appear in
   * all copies of this software.
   *
   * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
   * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
   * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
   * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
   * DAMAGE.
   *
   * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
   * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
   * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
   * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
   * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
   *
   * Google Author(s): Rod Sheeter
   */
  
  #ifndef HB_SUBSET_H
  #define HB_SUBSET_H
  
  #include "hb.h"
  
  HB_BEGIN_DECLS
  
  /**
   * hb_subset_input_t:
   *
   * Things that change based on the input. Characters to keep, etc.
   */
  
  typedef struct hb_subset_input_t hb_subset_input_t;
  
  /**
   * hb_subset_flags_t:
   * @HB_SUBSET_FLAGS_DEFAULT: all flags at their default value.
   * @HB_SUBSET_FLAGS_NO_HINTING: If set hinting instructions will be dropped in
   * the produced subset. Otherwise hinting instructions will be retained.
   * Defaults to true.
   * @HB_SUBSET_FLAGS_RETAIN_GIDS: If set glyph indices will not be modified in
   * the produced subset. If glyphs are dropped their indices will be retained
   * as an empty glyph. Defaults to false.
   * @HB_SUBSET_FLAGS_DESUBROUTINIZE: If set and subsetting a CFF font the
   * subsetter will attempt to remove subroutines from the CFF glyphs.
   * Defaults to false.
   * @HB_SUBSET_FLAGS_NAME_LEGACY: If set non-unicode name records will be
   * retained in the subset. Defaults to false.
   * @HB_SUBSET_FLAGS_SET_OVERLAPS_FLAG:	If set the subsetter will set the
   * OVERLAP_SIMPLE flag on each simple glyph. Defaults to false.
   * @HB_SUBSET_FLAGS_PASSTHROUGH_UNRECOGNIZED: If set the subsetter will not
   * drop unrecognized tables and instead pass them through untouched.
   * Defaults to false.
   * @HB_SUBSET_FLAGS_NOTDEF_OUTLINE: If set the notdef glyph outline will be
   * retained in the final subset. Defaults to false.
   * @HB_SUBSET_FLAGS_GLYPH_NAMES: If set the PS glyph names will be retained
   * in the final subset. Defaults to false.
   * @HB_SUBSET_FLAGS_NO_PRUNE_UNICODE_RANGES: If set then the unicode ranges in
   * OS/2 will not be recalculated.
   * @HB_SUBSET_FLAGS_RETAIN_ALL_FEATURES: If set all layout features will be
   * retained. If unset then the set accessed by
   * hb_subset_input_layout_features_set() will be used to determine the features
   * to be retained.
   *
   * List of boolean properties that can be configured on the subset input.
   *
   * Since: REPLACE
   **/
  typedef enum { /*< flags >*/
    HB_SUBSET_FLAGS_DEFAULT =		     0x00000000u,
    HB_SUBSET_FLAGS_NO_HINTING =		     0x00000001u,
    HB_SUBSET_FLAGS_RETAIN_GIDS =		     0x00000002u,
    HB_SUBSET_FLAGS_DESUBROUTINIZE =	     0x00000004u,
    HB_SUBSET_FLAGS_NAME_LEGACY =		     0x00000008u,
    HB_SUBSET_FLAGS_SET_OVERLAPS_FLAG =	     0x00000010u,
    HB_SUBSET_FLAGS_PASSTHROUGH_UNRECOGNIZED = 0x00000020u,
    HB_SUBSET_FLAGS_NOTDEF_OUTLINE =	     0x00000040u,
    HB_SUBSET_FLAGS_GLYPH_NAMES =		     0x00000080u,
    HB_SUBSET_FLAGS_NO_PRUNE_UNICODE_RANGES =  0x00000100u,
    HB_SUBSET_FLAGS_RETAIN_ALL_FEATURES =	     0x00000200u,
  } hb_subset_flags_t;
  
  HB_EXTERN hb_subset_input_t *
  hb_subset_input_create_or_fail (void);
  
  HB_EXTERN hb_subset_input_t *
  hb_subset_input_reference (hb_subset_input_t *input);
  
  HB_EXTERN void
  hb_subset_input_destroy (hb_subset_input_t *input);
  
  HB_EXTERN hb_bool_t
  hb_subset_input_set_user_data (hb_subset_input_t  *input,
  			       hb_user_data_key_t *key,
  			       void *		   data,
  			       hb_destroy_func_t   destroy,
  			       hb_bool_t	   replace);
  
  HB_EXTERN void *
  hb_subset_input_get_user_data (const hb_subset_input_t *input,
  			       hb_user_data_key_t	   *key);
  
  HB_EXTERN hb_set_t *
  hb_subset_input_unicode_set (hb_subset_input_t *input);
  
  HB_EXTERN hb_set_t *
  hb_subset_input_glyph_set (hb_subset_input_t *input);
  
  HB_EXTERN hb_set_t *
  hb_subset_input_nameid_set (hb_subset_input_t *input);
  
  HB_EXTERN hb_set_t *
  hb_subset_input_namelangid_set (hb_subset_input_t *input);
  
  HB_EXTERN hb_set_t *
  hb_subset_input_layout_features_set (hb_subset_input_t *input);
  
  HB_EXTERN hb_set_t *
  hb_subset_input_no_subset_tables_set (hb_subset_input_t *input);
  
  HB_EXTERN hb_set_t *
  hb_subset_input_drop_tables_set (hb_subset_input_t *input);
  
  HB_EXTERN hb_subset_flags_t
  hb_subset_input_get_flags (hb_subset_input_t *input);
  
  HB_EXTERN void
  hb_subset_input_set_flags (hb_subset_input_t *input,
  			   unsigned value);
  
  HB_EXTERN hb_face_t *
  hb_subset_or_fail (hb_face_t *source, const hb_subset_input_t *input);
  
  HB_END_DECLS
  
  #endif /* HB_SUBSET_H */
  

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