1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/harfbuzz/src/hb-ot-hmtx-table.hh Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,92 @@
1.4 +/*
1.5 + * Copyright © 2011,2012 Google, Inc.
1.6 + *
1.7 + * This is part of HarfBuzz, a text shaping library.
1.8 + *
1.9 + * Permission is hereby granted, without written agreement and without
1.10 + * license or royalty fees, to use, copy, modify, and distribute this
1.11 + * software and its documentation for any purpose, provided that the
1.12 + * above copyright notice and the following two paragraphs appear in
1.13 + * all copies of this software.
1.14 + *
1.15 + * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
1.16 + * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
1.17 + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
1.18 + * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
1.19 + * DAMAGE.
1.20 + *
1.21 + * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
1.22 + * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
1.23 + * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
1.24 + * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
1.25 + * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
1.26 + *
1.27 + * Google Author(s): Behdad Esfahbod
1.28 + */
1.29 +
1.30 +#ifndef HB_OT_HMTX_TABLE_HH
1.31 +#define HB_OT_HMTX_TABLE_HH
1.32 +
1.33 +#include "hb-open-type-private.hh"
1.34 +
1.35 +
1.36 +namespace OT {
1.37 +
1.38 +
1.39 +/*
1.40 + * hmtx -- The Horizontal Metrics Table
1.41 + */
1.42 +
1.43 +#define HB_OT_TAG_hmtx HB_TAG('h','m','t','x')
1.44 +
1.45 +
1.46 +struct LongHorMetric
1.47 +{
1.48 + USHORT advanceWidth;
1.49 + SHORT lsb;
1.50 + public:
1.51 + DEFINE_SIZE_STATIC (4);
1.52 +};
1.53 +
1.54 +struct hmtx
1.55 +{
1.56 + static const hb_tag_t tableTag = HB_OT_TAG_hmtx;
1.57 +
1.58 + inline bool sanitize (hb_sanitize_context_t *c) {
1.59 + TRACE_SANITIZE (this);
1.60 + /* We don't check for anything specific here. The users of the
1.61 + * struct do all the hard work... */
1.62 + return TRACE_RETURN (true);
1.63 + }
1.64 +
1.65 + protected:
1.66 + LongHorMetric longHorMetric[VAR]; /* Paired advance width and left side
1.67 + * bearing values for each glyph. The
1.68 + * value numOfHMetrics comes from
1.69 + * the 'hhea' table. If the font is
1.70 + * monospaced, only one entry need
1.71 + * be in the array, but that entry is
1.72 + * required. The last entry applies to
1.73 + * all subsequent glyphs. */
1.74 + SHORT leftSideBearingX[VAR]; /* Here the advanceWidth is assumed
1.75 + * to be the same as the advanceWidth
1.76 + * for the last entry above. The
1.77 + * number of entries in this array is
1.78 + * derived from numGlyphs (from 'maxp'
1.79 + * table) minus numberOfHMetrics. This
1.80 + * generally is used with a run of
1.81 + * monospaced glyphs (e.g., Kanji
1.82 + * fonts or Courier fonts). Only one
1.83 + * run is allowed and it must be at
1.84 + * the end. This allows a monospaced
1.85 + * font to vary the left side bearing
1.86 + * values for each glyph. */
1.87 + public:
1.88 + DEFINE_SIZE_ARRAY2 (0, longHorMetric, leftSideBearingX);
1.89 +};
1.90 +
1.91 +
1.92 +} /* namespace OT */
1.93 +
1.94 +
1.95 +#endif /* HB_OT_HMTX_TABLE_HH */
