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comparison: gfx/harfbuzz/src/hb-ot-hhea-table.hh
gfx/harfbuzz/src/hb-ot-hhea-table.hh
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
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| -1:000000000000 | 0:4e36dcb37d99 |
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| 1 /* | |
| 2 * Copyright © 2011,2012 Google, Inc. | |
| 3 * | |
| 4 * This is part of HarfBuzz, a text shaping library. | |
| 5 * | |
| 6 * Permission is hereby granted, without written agreement and without | |
| 7 * license or royalty fees, to use, copy, modify, and distribute this | |
| 8 * software and its documentation for any purpose, provided that the | |
| 9 * above copyright notice and the following two paragraphs appear in | |
| 10 * all copies of this software. | |
| 11 * | |
| 12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR | |
| 13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES | |
| 14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN | |
| 15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH | |
| 16 * DAMAGE. | |
| 17 * | |
| 18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, | |
| 19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS | |
| 21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO | |
| 22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. | |
| 23 * | |
| 24 * Google Author(s): Behdad Esfahbod | |
| 25 */ | |
| 26 | |
| 27 #ifndef HB_OT_HHEA_TABLE_HH | |
| 28 #define HB_OT_HHEA_TABLE_HH | |
| 29 | |
| 30 #include "hb-open-type-private.hh" | |
| 31 | |
| 32 | |
| 33 namespace OT { | |
| 34 | |
| 35 | |
| 36 /* | |
| 37 * hhea -- The Horizontal Header Table | |
| 38 */ | |
| 39 | |
| 40 #define HB_OT_TAG_hhea HB_TAG('h','h','e','a') | |
| 41 | |
| 42 | |
| 43 struct hhea | |
| 44 { | |
| 45 static const hb_tag_t tableTag = HB_OT_TAG_hhea; | |
| 46 | |
| 47 inline bool sanitize (hb_sanitize_context_t *c) { | |
| 48 TRACE_SANITIZE (this); | |
| 49 return TRACE_RETURN (c->check_struct (this) && likely (version.major == 1)); | |
| 50 } | |
| 51 | |
| 52 protected: | |
| 53 FixedVersion version; /* 0x00010000 for version 1.0. */ | |
| 54 FWORD ascender; /* Typographic ascent. <a | |
| 55 * href="http://developer.apple.com/fonts/TTRefMan/RM06/Chap6hhea.html"> | |
| 56 * (Distance from baseline of highest | |
| 57 * ascender)</a> */ | |
| 58 FWORD descender; /* Typographic descent. <a | |
| 59 * href="http://developer.apple.com/fonts/TTRefMan/RM06/Chap6hhea.html"> | |
| 60 * (Distance from baseline of lowest | |
| 61 * descender)</a> */ | |
| 62 FWORD lineGap; /* Typographic line gap. Negative | |
| 63 * LineGap values are treated as zero | |
| 64 * in Windows 3.1, System 6, and | |
| 65 * System 7. */ | |
| 66 UFWORD advanceWidthMax; /* Maximum advance width value in | |
| 67 * 'hmtx' table. */ | |
| 68 FWORD minLeftSideBearing; /* Minimum left sidebearing value in | |
| 69 * 'hmtx' table. */ | |
| 70 FWORD minRightSideBearing; /* Minimum right sidebearing value; | |
| 71 * calculated as Min(aw - lsb - | |
| 72 * (xMax - xMin)). */ | |
| 73 FWORD xMaxExtent; /* Max(lsb + (xMax - xMin)). */ | |
| 74 SHORT caretSlopeRise; /* Used to calculate the slope of the | |
| 75 * cursor (rise/run); 1 for vertical. */ | |
| 76 SHORT caretSlopeRun; /* 0 for vertical. */ | |
| 77 SHORT caretOffset; /* The amount by which a slanted | |
| 78 * highlight on a glyph needs | |
| 79 * to be shifted to produce the | |
| 80 * best appearance. Set to 0 for | |
| 81 * non--slanted fonts */ | |
| 82 SHORT reserved1; /* set to 0 */ | |
| 83 SHORT reserved2; /* set to 0 */ | |
| 84 SHORT reserved3; /* set to 0 */ | |
| 85 SHORT reserved4; /* set to 0 */ | |
| 86 SHORT metricDataFormat; /* 0 for current format. */ | |
| 87 USHORT numberOfHMetrics; /* Number of hMetric entries in 'hmtx' | |
| 88 * table */ | |
| 89 public: | |
| 90 DEFINE_SIZE_STATIC (36); | |
| 91 }; | |
| 92 | |
| 93 | |
| 94 } /* namespace OT */ | |
| 95 | |
| 96 | |
| 97 #endif /* HB_OT_HHEA_TABLE_HH */ |
