diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-ot-hhea-table.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-ot-hhea-table.hh | 65 |
1 files changed, 35 insertions, 30 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-hhea-table.hh b/src/3rdparty/harfbuzz-ng/src/hb-ot-hhea-table.hh index d433200165..edc0e29cbf 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-ot-hhea-table.hh +++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-hhea-table.hh @@ -35,14 +35,19 @@ namespace OT { /* * hhea -- The Horizontal Header Table + * vhea -- The Vertical Header Table */ #define HB_OT_TAG_hhea HB_TAG('h','h','e','a') +#define HB_OT_TAG_vhea HB_TAG('v','h','e','a') -struct hhea +struct _hea { - static const hb_tag_t tableTag = HB_OT_TAG_hhea; + static const hb_tag_t tableTag = HB_TAG('_','h','e','a'); + + static const hb_tag_t hheaTag = HB_OT_TAG_hhea; + static const hb_tag_t vheaTag = HB_OT_TAG_vhea; inline bool sanitize (hb_sanitize_context_t *c) { TRACE_SANITIZE (this); @@ -51,45 +56,45 @@ struct hhea public: FixedVersion version; /* 0x00010000u for version 1.0. */ - FWORD ascender; /* Typographic ascent. <a - * href="http://developer.apple.com/fonts/TTRefMan/RM06/Chap6hhea.html"> - * (Distance from baseline of highest - * ascender)</a> */ - FWORD descender; /* Typographic descent. <a - * href="http://developer.apple.com/fonts/TTRefMan/RM06/Chap6hhea.html"> - * (Distance from baseline of lowest - * descender)</a> */ - FWORD lineGap; /* Typographic line gap. Negative - * LineGap values are treated as zero - * in Windows 3.1, System 6, and - * System 7. */ - UFWORD advanceWidthMax; /* Maximum advance width value in - * 'hmtx' table. */ - FWORD minLeftSideBearing; /* Minimum left sidebearing value in - * 'hmtx' table. */ - FWORD minRightSideBearing; /* Minimum right sidebearing value; + FWORD ascender; /* Typographic ascent. */ + FWORD descender; /* Typographic descent. */ + FWORD lineGap; /* Typographic line gap. */ + UFWORD advanceMax; /* Maximum advance width/height value in + * metrics table. */ + FWORD minLeadingBearing; /* Minimum left/top sidebearing value in + * metrics table. */ + FWORD minTrailingBearing; /* Minimum right/bottom sidebearing value; * calculated as Min(aw - lsb - - * (xMax - xMin)). */ - FWORD xMaxExtent; /* Max(lsb + (xMax - xMin)). */ + * (xMax - xMin)) for horizontal. */ + FWORD maxExtent; /* horizontal: Max(lsb + (xMax - xMin)), + * vertical: minLeadingBearing+(yMax-yMin). */ SHORT caretSlopeRise; /* Used to calculate the slope of the - * cursor (rise/run); 1 for vertical. */ - SHORT caretSlopeRun; /* 0 for vertical. */ + * cursor (rise/run); 1 for vertical caret, + * 0 for horizontal.*/ + SHORT caretSlopeRun; /* 0 for vertical caret, 1 for horizontal. */ SHORT caretOffset; /* The amount by which a slanted * highlight on a glyph needs * to be shifted to produce the * best appearance. Set to 0 for - * non--slanted fonts */ - SHORT reserved1; /* set to 0 */ - SHORT reserved2; /* set to 0 */ - SHORT reserved3; /* set to 0 */ - SHORT reserved4; /* set to 0 */ + * non-slanted fonts. */ + SHORT reserved1; /* Set to 0. */ + SHORT reserved2; /* Set to 0. */ + SHORT reserved3; /* Set to 0. */ + SHORT reserved4; /* Set to 0. */ SHORT metricDataFormat; /* 0 for current format. */ - USHORT numberOfHMetrics; /* Number of hMetric entries in 'hmtx' - * table */ + USHORT numberOfLongMetrics; /* Number of LongMetric entries in metric + * table. */ public: DEFINE_SIZE_STATIC (36); }; +struct hhea : _hea { + static const hb_tag_t tableTag = HB_OT_TAG_hhea; +}; +struct vhea : _hea { + static const hb_tag_t tableTag = HB_OT_TAG_vhea; +}; + } /* namespace OT */ |