1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/harfbuzz/src/hb-ot-hhea-table.hh Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,97 @@
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_HHEA_TABLE_HH
1.31 +#define HB_OT_HHEA_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 + * hhea -- The Horizontal Header Table
1.41 + */
1.42 +
1.43 +#define HB_OT_TAG_hhea HB_TAG('h','h','e','a')
1.44 +
1.45 +
1.46 +struct hhea
1.47 +{
1.48 + static const hb_tag_t tableTag = HB_OT_TAG_hhea;
1.49 +
1.50 + inline bool sanitize (hb_sanitize_context_t *c) {
1.51 + TRACE_SANITIZE (this);
1.52 + return TRACE_RETURN (c->check_struct (this) && likely (version.major == 1));
1.53 + }
1.54 +
1.55 + protected:
1.56 + FixedVersion version; /* 0x00010000 for version 1.0. */
1.57 + FWORD ascender; /* Typographic ascent. <a
1.58 + * href="http://developer.apple.com/fonts/TTRefMan/RM06/Chap6hhea.html">
1.59 + * (Distance from baseline of highest
1.60 + * ascender)</a> */
1.61 + FWORD descender; /* Typographic descent. <a
1.62 + * href="http://developer.apple.com/fonts/TTRefMan/RM06/Chap6hhea.html">
1.63 + * (Distance from baseline of lowest
1.64 + * descender)</a> */
1.65 + FWORD lineGap; /* Typographic line gap. Negative
1.66 + * LineGap values are treated as zero
1.67 + * in Windows 3.1, System 6, and
1.68 + * System 7. */
1.69 + UFWORD advanceWidthMax; /* Maximum advance width value in
1.70 + * 'hmtx' table. */
1.71 + FWORD minLeftSideBearing; /* Minimum left sidebearing value in
1.72 + * 'hmtx' table. */
1.73 + FWORD minRightSideBearing; /* Minimum right sidebearing value;
1.74 + * calculated as Min(aw - lsb -
1.75 + * (xMax - xMin)). */
1.76 + FWORD xMaxExtent; /* Max(lsb + (xMax - xMin)). */
1.77 + SHORT caretSlopeRise; /* Used to calculate the slope of the
1.78 + * cursor (rise/run); 1 for vertical. */
1.79 + SHORT caretSlopeRun; /* 0 for vertical. */
1.80 + SHORT caretOffset; /* The amount by which a slanted
1.81 + * highlight on a glyph needs
1.82 + * to be shifted to produce the
1.83 + * best appearance. Set to 0 for
1.84 + * non--slanted fonts */
1.85 + SHORT reserved1; /* set to 0 */
1.86 + SHORT reserved2; /* set to 0 */
1.87 + SHORT reserved3; /* set to 0 */
1.88 + SHORT reserved4; /* set to 0 */
1.89 + SHORT metricDataFormat; /* 0 for current format. */
1.90 + USHORT numberOfHMetrics; /* Number of hMetric entries in 'hmtx'
1.91 + * table */
1.92 + public:
1.93 + DEFINE_SIZE_STATIC (36);
1.94 +};
1.95 +
1.96 +
1.97 +} /* namespace OT */
1.98 +
1.99 +
1.100 +#endif /* HB_OT_HHEA_TABLE_HH */
