| /* | |
| * 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 List16OfOffset16To<PosLookup> JstfMax; | |
| /* | |
| * JstfPriority -- Justification Priority Table | |
| */ | |
| struct JstfPriority | |
| { | |
| 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: | |
| Offset16To<JstfModList> | |
| shrinkageEnableGSUB; /* Offset to Shrinkage Enable GSUB | |
| * JstfModList table--from beginning of | |
| * JstfPriority table--may be NULL */ | |
| Offset16To<JstfModList> | |
| shrinkageDisableGSUB; /* Offset to Shrinkage Disable GSUB | |
| * JstfModList table--from beginning of | |
| * JstfPriority table--may be NULL */ | |
| Offset16To<JstfModList> | |
| shrinkageEnableGPOS; /* Offset to Shrinkage Enable GPOS | |
| * JstfModList table--from beginning of | |
| * JstfPriority table--may be NULL */ | |
| Offset16To<JstfModList> | |
| shrinkageDisableGPOS; /* Offset to Shrinkage Disable GPOS | |
| * JstfModList table--from beginning of | |
| * JstfPriority table--may be NULL */ | |
| Offset16To<JstfMax> | |
| shrinkageJstfMax; /* Offset to Shrinkage JstfMax table-- | |
| * from beginning of JstfPriority table | |
| * --may be NULL */ | |
| Offset16To<JstfModList> | |
| extensionEnableGSUB; /* Offset to Extension Enable GSUB | |
| * JstfModList table--from beginning of | |
| * JstfPriority table--may be NULL */ | |
| Offset16To<JstfModList> | |
| extensionDisableGSUB; /* Offset to Extension Disable GSUB | |
| * JstfModList table--from beginning of | |
| * JstfPriority table--may be NULL */ | |
| Offset16To<JstfModList> | |
| extensionEnableGPOS; /* Offset to Extension Enable GPOS | |
| * JstfModList table--from beginning of | |
| * JstfPriority table--may be NULL */ | |
| Offset16To<JstfModList> | |
| extensionDisableGPOS; /* Offset to Extension Disable GPOS | |
| * JstfModList table--from beginning of | |
| * JstfPriority table--may be NULL */ | |
| Offset16To<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 : List16OfOffset16To<JstfPriority> | |
| { | |
| bool sanitize (hb_sanitize_context_t *c, | |
| const Record_sanitize_closure_t * = nullptr) const | |
| { | |
| TRACE_SANITIZE (this); | |
| return_trace (List16OfOffset16To<JstfPriority>::sanitize (c)); | |
| } | |
| }; | |
| /* | |
| * ExtenderGlyphs -- Extender Glyph Table | |
| */ | |
| typedef SortedArray16Of<HBGlyphID16> ExtenderGlyphs; | |
| /* | |
| * JstfScript -- The Justification Table | |
| */ | |
| struct JstfScript | |
| { | |
| unsigned int get_lang_sys_count () const | |
| { return langSys.len; } | |
| const Tag& get_lang_sys_tag (unsigned int i) const | |
| { return langSys.get_tag (i); } | |
| 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); } | |
| 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; | |
| } | |
| bool find_lang_sys_index (hb_tag_t tag, unsigned int *index) const | |
| { return langSys.find_index (tag, index); } | |
| bool has_default_lang_sys () const { return defaultLangSys != 0; } | |
| const JstfLangSys& get_default_lang_sys () const { return this+defaultLangSys; } | |
| 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: | |
| Offset16To<ExtenderGlyphs> | |
| extenderGlyphs; /* Offset to ExtenderGlyph table--from beginning | |
| * of JstfScript table-may be NULL */ | |
| Offset16To<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 constexpr hb_tag_t tableTag = HB_OT_TAG_JSTF; | |
| unsigned int get_script_count () const | |
| { return scriptList.len; } | |
| const Tag& get_script_tag (unsigned int i) const | |
| { return scriptList.get_tag (i); } | |
| 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); } | |
| const JstfScript& get_script (unsigned int i) const | |
| { return this+scriptList[i].offset; } | |
| bool find_script_index (hb_tag_t tag, unsigned int *index) const | |
| { return scriptList.find_index (tag, index); } | |
| bool sanitize (hb_sanitize_context_t *c) const | |
| { | |
| TRACE_SANITIZE (this); | |
| return_trace (version.sanitize (c) && | |
| hb_barrier () && | |
| 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 */ |