162 lines
5.1 KiB
C
162 lines
5.1 KiB
C
/*
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* Copyright © 2018 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Rod Sheeter
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*/
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#ifndef HB_SUBSET_H
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#define HB_SUBSET_H
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#include "hb.h"
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HB_BEGIN_DECLS
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/*
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* hb_subset_input_t
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*
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* Things that change based on the input. Characters to keep, etc.
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*/
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typedef struct hb_subset_input_t hb_subset_input_t;
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typedef enum
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{
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// If set hinting instructions will be retained in the produced subset.
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// Otherwise hinting instructions will be dropped.
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// Defaults to true.
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HB_SUBSET_FLAG_HINTING = 1,
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// If set glyph indices will not be modified in the produced subset.
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// If glyphs are dropped their indices will be retained as an empty
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// glyph.
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// Defaults to false.
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HB_SUBSET_FLAG_RETAIN_GIDS = 2,
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// If set and subsetting a CFF font the subsetter will attempt to
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// remove subroutines from the CFF glyphs.
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// Defaults to false.
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HB_SUBSET_FLAG_DESUBROUTINIZE = 3,
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// If set non-unicode name records will be retained in the subset.
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// Defaults to false.
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HB_SUBSET_FLAG_NAME_LEGACY = 4,
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// If set the subsetter will set the OVERLAP_SIMPLE flag on each
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// simple glyph.
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// Defaults to false.
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HB_SUBSET_FLAG_SET_OVERLAPS_FLAG = 5,
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// If set the subsetter will not drop unrecognized tables and instead
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// pass them through untouched.
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// Defaults to false.
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HB_SUBSET_FLAG_PASSTHROUGH_UNRECOGNIZED = 6,
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// If set the notdef glyph outline will be retained in the final subset.
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// Defaults to false.
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HB_SUBSET_FLAG_NOTDEF_OUTLINE = 7,
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} hb_subset_flag_t;
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HB_EXTERN hb_subset_input_t *
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hb_subset_input_create_or_fail (void);
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HB_EXTERN hb_subset_input_t *
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hb_subset_input_reference (hb_subset_input_t *subset_input);
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HB_EXTERN void
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hb_subset_input_destroy (hb_subset_input_t *subset_input);
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HB_EXTERN hb_bool_t
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hb_subset_input_set_user_data (hb_subset_input_t *input,
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hb_user_data_key_t *key,
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void * data,
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hb_destroy_func_t destroy,
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hb_bool_t replace);
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HB_EXTERN void *
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hb_subset_input_get_user_data (const hb_subset_input_t *input,
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hb_user_data_key_t *key);
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HB_EXTERN hb_set_t *
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hb_subset_input_unicode_set (hb_subset_input_t *subset_input);
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HB_EXTERN hb_set_t *
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hb_subset_input_glyph_set (hb_subset_input_t *subset_input);
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HB_EXTERN hb_set_t *
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hb_subset_input_nameid_set (hb_subset_input_t *subset_input);
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HB_EXTERN hb_set_t *
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hb_subset_input_namelangid_set (hb_subset_input_t *subset_input);
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HB_EXTERN hb_set_t *
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hb_subset_input_layout_features_set (hb_subset_input_t *subset_input);
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HB_EXTERN void
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hb_subset_input_set_retain_all_features (hb_subset_input_t *subset_input,
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hb_bool_t value);
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HB_EXTERN hb_bool_t
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hb_subset_input_get_retain_all_features (hb_subset_input_t *subset_input);
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HB_EXTERN hb_set_t *
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hb_subset_input_no_subset_tables_set (hb_subset_input_t *subset_input);
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HB_EXTERN hb_set_t *
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hb_subset_input_drop_tables_set (hb_subset_input_t *subset_input);
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HB_EXTERN hb_bool_t
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hb_subset_input_get_flag (hb_subset_input_t *input,
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hb_subset_flag_t flag);
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HB_EXTERN void
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hb_subset_input_set_flag (hb_subset_input_t *input,
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hb_subset_flag_t flag,
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hb_bool_t value);
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// TODO(garretrieger): remove bool property get/set methods.
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HB_EXTERN void
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hb_subset_input_set_overlaps_flag (hb_subset_input_t *subset_input,
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hb_bool_t overlaps_flag);
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HB_EXTERN hb_bool_t
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hb_subset_input_get_overlaps_flag (hb_subset_input_t *subset_input);
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HB_EXTERN void
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hb_subset_input_set_notdef_outline (hb_subset_input_t *subset_input,
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hb_bool_t notdef_outline);
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HB_EXTERN hb_bool_t
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hb_subset_input_get_notdef_outline (hb_subset_input_t *subset_input);
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HB_EXTERN void
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hb_subset_input_set_no_prune_unicode_ranges (hb_subset_input_t *subset_input,
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hb_bool_t no_prune_unicode_ranges);
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HB_EXTERN hb_bool_t
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hb_subset_input_get_no_prune_unicode_ranges (hb_subset_input_t *subset_input);
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/* hb_subset () */
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HB_EXTERN hb_face_t *
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hb_subset (hb_face_t *source, const hb_subset_input_t *input);
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HB_EXTERN hb_face_t *
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hb_subset_or_fail (hb_face_t *source, const hb_subset_input_t *input);
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HB_END_DECLS
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#endif /* HB_SUBSET_H */
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