| /* |
| * Copyright © 2011,2012 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_HHEA_TABLE_HH |
| #define HB_OT_HHEA_TABLE_HH |
| |
| #include "hb-open-type-private.hh" |
| |
| |
| namespace OT { |
| |
| |
| /* |
| * hhea -- The Horizontal Header Table |
| */ |
| |
| #define HB_OT_TAG_hhea HB_TAG('h','h','e','a') |
| |
| |
| struct hhea |
| { |
| static const hb_tag_t tableTag = HB_OT_TAG_hhea; |
| |
| inline bool sanitize (hb_sanitize_context_t *c) { |
| TRACE_SANITIZE (this); |
| return TRACE_RETURN (c->check_struct (this) && likely (version.major == 1)); |
| } |
| |
| protected: |
| FixedVersion version; /* 0x00010000 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; |
| * calculated as Min(aw - lsb - |
| * (xMax - xMin)). */ |
| FWORD xMaxExtent; /* Max(lsb + (xMax - xMin)). */ |
| SHORT caretSlopeRise; /* Used to calculate the slope of the |
| * cursor (rise/run); 1 for vertical. */ |
| SHORT caretSlopeRun; /* 0 for vertical. */ |
| 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 */ |
| SHORT metricDataFormat; /* 0 for current format. */ |
| USHORT numberOfHMetrics; /* Number of hMetric entries in 'hmtx' |
| * table */ |
| public: |
| DEFINE_SIZE_STATIC (36); |
| }; |
| |
| |
| } /* namespace OT */ |
| |
| |
| #endif /* HB_OT_HHEA_TABLE_HH */ |
