gfx/harfbuzz/src/hb-ot-hmtx-table.hh@925c144e1f1f (annotated)
gfx/harfbuzz/src/hb-ot-hmtx-table.hh
Fri, 16 Jan 2015 18:13:44 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 18:13:44 +0100
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
- permissions
- -rw-r--r--
Integrate suggestion from review to improve consistency with existing code.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright © 2011,2012 Google, Inc. |
| michael@0 | 3 | * |
| michael@0 | 4 | * This is part of HarfBuzz, a text shaping library. |
| michael@0 | 5 | * |
| michael@0 | 6 | * Permission is hereby granted, without written agreement and without |
| michael@0 | 7 | * license or royalty fees, to use, copy, modify, and distribute this |
| michael@0 | 8 | * software and its documentation for any purpose, provided that the |
| michael@0 | 9 | * above copyright notice and the following two paragraphs appear in |
| michael@0 | 10 | * all copies of this software. |
| michael@0 | 11 | * |
| michael@0 | 12 | * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
| michael@0 | 13 | * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
| michael@0 | 14 | * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
| michael@0 | 15 | * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
| michael@0 | 16 | * DAMAGE. |
| michael@0 | 17 | * |
| michael@0 | 18 | * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
| michael@0 | 19 | * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| michael@0 | 20 | * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| michael@0 | 21 | * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
| michael@0 | 22 | * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| michael@0 | 23 | * |
| michael@0 | 24 | * Google Author(s): Behdad Esfahbod |
| michael@0 | 25 | */ |
| michael@0 | 26 | |
| michael@0 | 27 | #ifndef HB_OT_HMTX_TABLE_HH |
| michael@0 | 28 | #define HB_OT_HMTX_TABLE_HH |
| michael@0 | 29 | |
| michael@0 | 30 | #include "hb-open-type-private.hh" |
| michael@0 | 31 | |
| michael@0 | 32 | |
| michael@0 | 33 | namespace OT { |
| michael@0 | 34 | |
| michael@0 | 35 | |
| michael@0 | 36 | /* |
| michael@0 | 37 | * hmtx -- The Horizontal Metrics Table |
| michael@0 | 38 | */ |
| michael@0 | 39 | |
| michael@0 | 40 | #define HB_OT_TAG_hmtx HB_TAG('h','m','t','x') |
| michael@0 | 41 | |
| michael@0 | 42 | |
| michael@0 | 43 | struct LongHorMetric |
| michael@0 | 44 | { |
| michael@0 | 45 | USHORT advanceWidth; |
| michael@0 | 46 | SHORT lsb; |
| michael@0 | 47 | public: |
| michael@0 | 48 | DEFINE_SIZE_STATIC (4); |
| michael@0 | 49 | }; |
| michael@0 | 50 | |
| michael@0 | 51 | struct hmtx |
| michael@0 | 52 | { |
| michael@0 | 53 | static const hb_tag_t tableTag = HB_OT_TAG_hmtx; |
| michael@0 | 54 | |
| michael@0 | 55 | inline bool sanitize (hb_sanitize_context_t *c) { |
| michael@0 | 56 | TRACE_SANITIZE (this); |
| michael@0 | 57 | /* We don't check for anything specific here. The users of the |
| michael@0 | 58 | * struct do all the hard work... */ |
| michael@0 | 59 | return TRACE_RETURN (true); |
| michael@0 | 60 | } |
| michael@0 | 61 | |
| michael@0 | 62 | protected: |
| michael@0 | 63 | LongHorMetric longHorMetric[VAR]; /* Paired advance width and left side |
| michael@0 | 64 | * bearing values for each glyph. The |
| michael@0 | 65 | * value numOfHMetrics comes from |
| michael@0 | 66 | * the 'hhea' table. If the font is |
| michael@0 | 67 | * monospaced, only one entry need |
| michael@0 | 68 | * be in the array, but that entry is |
| michael@0 | 69 | * required. The last entry applies to |
| michael@0 | 70 | * all subsequent glyphs. */ |
| michael@0 | 71 | SHORT leftSideBearingX[VAR]; /* Here the advanceWidth is assumed |
| michael@0 | 72 | * to be the same as the advanceWidth |
| michael@0 | 73 | * for the last entry above. The |
| michael@0 | 74 | * number of entries in this array is |
| michael@0 | 75 | * derived from numGlyphs (from 'maxp' |
| michael@0 | 76 | * table) minus numberOfHMetrics. This |
| michael@0 | 77 | * generally is used with a run of |
| michael@0 | 78 | * monospaced glyphs (e.g., Kanji |
| michael@0 | 79 | * fonts or Courier fonts). Only one |
| michael@0 | 80 | * run is allowed and it must be at |
| michael@0 | 81 | * the end. This allows a monospaced |
| michael@0 | 82 | * font to vary the left side bearing |
| michael@0 | 83 | * values for each glyph. */ |
| michael@0 | 84 | public: |
| michael@0 | 85 | DEFINE_SIZE_ARRAY2 (0, longHorMetric, leftSideBearingX); |
| michael@0 | 86 | }; |
| michael@0 | 87 | |
| michael@0 | 88 | |
| michael@0 | 89 | } /* namespace OT */ |
| michael@0 | 90 | |
| michael@0 | 91 | |
| michael@0 | 92 | #endif /* HB_OT_HMTX_TABLE_HH */ |
