2011-08-17 12:43:45 +00:00
|
|
|
/*
|
2012-05-10 23:25:34 +00:00
|
|
|
* Copyright © 2011,2012 Google, Inc.
|
2011-08-17 12:43:45 +00:00
|
|
|
*
|
|
|
|
|
* 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"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* hhea -- The Horizontal Header Table
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define HB_OT_TAG_hhea HB_TAG('h','h','e','a')
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
struct hhea
|
|
|
|
|
{
|
|
|
|
|
static const hb_tag_t Tag = HB_OT_TAG_hhea;
|
|
|
|
|
|
|
|
|
|
inline bool sanitize (hb_sanitize_context_t *c) {
|
|
|
|
|
TRACE_SANITIZE ();
|
2012-05-10 23:25:34 +00:00
|
|
|
return TRACE_RETURN (c->check_struct (this) && likely (version.major == 1));
|
2011-08-17 12:43:45 +00:00
|
|
|
}
|
|
|
|
|
|
2012-07-24 19:40:37 +00:00
|
|
|
protected:
|
2011-08-17 12:43:45 +00:00
|
|
|
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);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#endif /* HB_OT_HHEA_TABLE_HH */
|
