145 lines
4.7 KiB
C
145 lines
4.7 KiB
C
/*
|
|
* 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_flag_t:
|
|
* @HB_SUBSET_FLAG_HINTING: If set hinting instructions will be retained in
|
|
* the produced subset. Otherwise hinting instructions will be dropped.
|
|
* Defaults to true.
|
|
* @HB_SUBSET_FLAG_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_FLAG_DESUBROUTINIZE: If set and subsetting a CFF font the
|
|
* subsetter will attempt to remove subroutines from the CFF glyphs.
|
|
* Defaults to false.
|
|
* @HB_SUBSET_FLAG_NAME_LEGACY: If set non-unicode name records will be
|
|
* retained in the subset. Defaults to false.
|
|
* @HB_SUBSET_FLAG_SET_OVERLAPS_FLAG: If set the subsetter will set the
|
|
* OVERLAP_SIMPLE flag on each simple glyph. Defaults to false.
|
|
* @HB_SUBSET_FLAG_PASSTHROUGH_UNRECOGNIZED: If set the subsetter will not
|
|
* drop unrecognized tables and instead pass them through untouched.
|
|
* Defaults to false.
|
|
* @HB_SUBSET_FLAG_NOTDEF_OUTLINE: If set the notdef glyph outline will be
|
|
* retained in the final subset. Defaults to false.
|
|
* @HB_SUBSET_FLAG_GLYPH_NAMES: If set the PS glyph names will be retained
|
|
* in the final subset. Defaults to false.
|
|
* @HB_SUBSET_FLAG_NO_PRUNE_UNICODE_RANGES: If set then the unicode ranges in
|
|
* OS/2 will not be recalculated.
|
|
* @HB_SUBSET_FLAG_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
|
|
{
|
|
HB_SUBSET_FLAG_HINTING = 0,
|
|
HB_SUBSET_FLAG_RETAIN_GIDS,
|
|
HB_SUBSET_FLAG_DESUBROUTINIZE,
|
|
HB_SUBSET_FLAG_NAME_LEGACY,
|
|
HB_SUBSET_FLAG_SET_OVERLAPS_FLAG,
|
|
HB_SUBSET_FLAG_PASSTHROUGH_UNRECOGNIZED,
|
|
HB_SUBSET_FLAG_NOTDEF_OUTLINE,
|
|
HB_SUBSET_FLAG_GLYPH_NAMES,
|
|
HB_SUBSET_FLAG_NO_PRUNE_UNICODE_RANGES,
|
|
HB_SUBSET_FLAG_RETAIN_ALL_FEATURES,
|
|
} hb_subset_flag_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_bool_t
|
|
hb_subset_input_get_flag (hb_subset_input_t *input,
|
|
hb_subset_flag_t flag);
|
|
|
|
HB_EXTERN void
|
|
hb_subset_input_set_flag (hb_subset_input_t *input,
|
|
hb_subset_flag_t flag,
|
|
hb_bool_t 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 */
|