| /* |
| * Copyright © 2013 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): Behdad Esfahbod |
| */ |
| |
| #ifndef HB_OT_LAYOUT_JSTF_TABLE_HH |
| #define HB_OT_LAYOUT_JSTF_TABLE_HH |
| |
| #include "hb-open-type.hh" |
| #include "hb-ot-layout-gpos-table.hh" |
| |
| |
| namespace OT { |
| |
| |
| /* |
| * JstfModList -- Justification Modification List Tables |
| */ |
| |
| typedef IndexArray JstfModList; |
| |
| |
| /* |
| * JstfMax -- Justification Maximum Table |
| */ |
| |
| typedef OffsetListOf<PosLookup> JstfMax; |
| |
| |
| /* |
| * JstfPriority -- Justification Priority Table |
| */ |
| |
| struct JstfPriority |
| { |
| inline bool sanitize (hb_sanitize_context_t *c) const |
| { |
| TRACE_SANITIZE (this); |
| return_trace (c->check_struct (this) && |
| shrinkageEnableGSUB.sanitize (c, this) && |
| shrinkageDisableGSUB.sanitize (c, this) && |
| shrinkageEnableGPOS.sanitize (c, this) && |
| shrinkageDisableGPOS.sanitize (c, this) && |
| shrinkageJstfMax.sanitize (c, this) && |
| extensionEnableGSUB.sanitize (c, this) && |
| extensionDisableGSUB.sanitize (c, this) && |
| extensionEnableGPOS.sanitize (c, this) && |
| extensionDisableGPOS.sanitize (c, this) && |
| extensionJstfMax.sanitize (c, this)); |
| } |
| |
| protected: |
| OffsetTo<JstfModList> |
| shrinkageEnableGSUB; /* Offset to Shrinkage Enable GSUB |
| * JstfModList table--from beginning of |
| * JstfPriority table--may be NULL */ |
| OffsetTo<JstfModList> |
| shrinkageDisableGSUB; /* Offset to Shrinkage Disable GSUB |
| * JstfModList table--from beginning of |
| * JstfPriority table--may be NULL */ |
| OffsetTo<JstfModList> |
| shrinkageEnableGPOS; /* Offset to Shrinkage Enable GPOS |
| * JstfModList table--from beginning of |
| * JstfPriority table--may be NULL */ |
| OffsetTo<JstfModList> |
| shrinkageDisableGPOS; /* Offset to Shrinkage Disable GPOS |
| * JstfModList table--from beginning of |
| * JstfPriority table--may be NULL */ |
| OffsetTo<JstfMax> |
| shrinkageJstfMax; /* Offset to Shrinkage JstfMax table-- |
| * from beginning of JstfPriority table |
| * --may be NULL */ |
| OffsetTo<JstfModList> |
| extensionEnableGSUB; /* Offset to Extension Enable GSUB |
| * JstfModList table--from beginning of |
| * JstfPriority table--may be NULL */ |
| OffsetTo<JstfModList> |
| extensionDisableGSUB; /* Offset to Extension Disable GSUB |
| * JstfModList table--from beginning of |
| * JstfPriority table--may be NULL */ |
| OffsetTo<JstfModList> |
| extensionEnableGPOS; /* Offset to Extension Enable GPOS |
| * JstfModList table--from beginning of |
| * JstfPriority table--may be NULL */ |
| OffsetTo<JstfModList> |
| extensionDisableGPOS; /* Offset to Extension Disable GPOS |
| * JstfModList table--from beginning of |
| * JstfPriority table--may be NULL */ |
| OffsetTo<JstfMax> |
| extensionJstfMax; /* Offset to Extension JstfMax table-- |
| * from beginning of JstfPriority table |
| * --may be NULL */ |
| |
| public: |
| DEFINE_SIZE_STATIC (20); |
| }; |
| |
| |
| /* |
| * JstfLangSys -- Justification Language System Table |
| */ |
| |
| struct JstfLangSys : OffsetListOf<JstfPriority> |
| { |
| inline bool sanitize (hb_sanitize_context_t *c, |
| const Record_sanitize_closure_t * = nullptr) const |
| { |
| TRACE_SANITIZE (this); |
| return_trace (OffsetListOf<JstfPriority>::sanitize (c)); |
| } |
| }; |
| |
| |
| /* |
| * ExtenderGlyphs -- Extender Glyph Table |
| */ |
| |
| typedef SortedArrayOf<GlyphID> ExtenderGlyphs; |
| |
| |
| /* |
| * JstfScript -- The Justification Table |
| */ |
| |
| struct JstfScript |
| { |
| inline unsigned int get_lang_sys_count (void) const |
| { return langSys.len; } |
| inline const Tag& get_lang_sys_tag (unsigned int i) const |
| { return langSys.get_tag (i); } |
| inline unsigned int get_lang_sys_tags (unsigned int start_offset, |
| unsigned int *lang_sys_count /* IN/OUT */, |
| hb_tag_t *lang_sys_tags /* OUT */) const |
| { return langSys.get_tags (start_offset, lang_sys_count, lang_sys_tags); } |
| inline const JstfLangSys& get_lang_sys (unsigned int i) const |
| { |
| if (i == Index::NOT_FOUND_INDEX) return get_default_lang_sys (); |
| return this+langSys[i].offset; |
| } |
| inline bool find_lang_sys_index (hb_tag_t tag, unsigned int *index) const |
| { return langSys.find_index (tag, index); } |
| |
| inline bool has_default_lang_sys (void) const { return defaultLangSys != 0; } |
| inline const JstfLangSys& get_default_lang_sys (void) const { return this+defaultLangSys; } |
| |
| inline bool sanitize (hb_sanitize_context_t *c, |
| const Record_sanitize_closure_t * = nullptr) const |
| { |
| TRACE_SANITIZE (this); |
| return_trace (extenderGlyphs.sanitize (c, this) && |
| defaultLangSys.sanitize (c, this) && |
| langSys.sanitize (c, this)); |
| } |
| |
| protected: |
| OffsetTo<ExtenderGlyphs> |
| extenderGlyphs; /* Offset to ExtenderGlyph table--from beginning |
| * of JstfScript table-may be NULL */ |
| OffsetTo<JstfLangSys> |
| defaultLangSys; /* Offset to DefaultJstfLangSys table--from |
| * beginning of JstfScript table--may be Null */ |
| RecordArrayOf<JstfLangSys> |
| langSys; /* Array of JstfLangSysRecords--listed |
| * alphabetically by LangSysTag */ |
| public: |
| DEFINE_SIZE_ARRAY (6, langSys); |
| }; |
| |
| |
| /* |
| * JSTF -- Justification |
| * https://docs.microsoft.com/en-us/typography/opentype/spec/jstf |
| */ |
| |
| struct JSTF |
| { |
| static const hb_tag_t tableTag = HB_OT_TAG_JSTF; |
| |
| inline unsigned int get_script_count (void) const |
| { return scriptList.len; } |
| inline const Tag& get_script_tag (unsigned int i) const |
| { return scriptList.get_tag (i); } |
| inline unsigned int get_script_tags (unsigned int start_offset, |
| unsigned int *script_count /* IN/OUT */, |
| hb_tag_t *script_tags /* OUT */) const |
| { return scriptList.get_tags (start_offset, script_count, script_tags); } |
| inline const JstfScript& get_script (unsigned int i) const |
| { return this+scriptList[i].offset; } |
| inline bool find_script_index (hb_tag_t tag, unsigned int *index) const |
| { return scriptList.find_index (tag, index); } |
| |
| inline bool sanitize (hb_sanitize_context_t *c) const |
| { |
| TRACE_SANITIZE (this); |
| return_trace (version.sanitize (c) && |
| likely (version.major == 1) && |
| scriptList.sanitize (c, this)); |
| } |
| |
| protected: |
| FixedVersion<>version; /* Version of the JSTF table--initially set |
| * to 0x00010000u */ |
| RecordArrayOf<JstfScript> |
| scriptList; /* Array of JstfScripts--listed |
| * alphabetically by ScriptTag */ |
| public: |
| DEFINE_SIZE_ARRAY (6, scriptList); |
| }; |
| |
| |
| } /* namespace OT */ |
| |
| |
| #endif /* HB_OT_LAYOUT_JSTF_TABLE_HH */ |