/*
* Copyright © 2011,2012 Google, Inc.
*
* 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_HMTX_TABLE_HH
#define HB_OT_HMTX_TABLE_HH
#include "hb-open-type-private.hh"
namespace OT {
/*
* hmtx -- The Horizontal Metrics Table
*/
#define HB_OT_TAG_hmtx HB_TAG('h','m','t','x')
struct LongHorMetric
{
USHORT advanceWidth;
SHORT lsb;
public:
DEFINE_SIZE_STATIC (4);
};
struct hmtx
{
static const hb_tag_t tableTag = HB_OT_TAG_hmtx;
inline bool sanitize (hb_sanitize_context_t *c) {
TRACE_SANITIZE (this);
/* We don't check for anything specific here. The users of the
* struct do all the hard work... */
return TRACE_RETURN (true);
}
protected:
LongHorMetric longHorMetric[VAR]; /* Paired advance width and left side
* bearing values for each glyph. The
* value numOfHMetrics comes from
* the 'hhea' table. If the font is
* monospaced, only one entry need
* be in the array, but that entry is
* required. The last entry applies to
* all subsequent glyphs. */
SHORT leftSideBearingX[VAR]; /* Here the advanceWidth is assumed
* to be the same as the advanceWidth
* for the last entry above. The
* number of entries in this array is
* derived from numGlyphs (from 'maxp'
* table) minus numberOfHMetrics. This
* generally is used with a run of
* monospaced glyphs (e.g., Kanji
* fonts or Courier fonts). Only one
* run is allowed and it must be at
* the end. This allows a monospaced
* font to vary the left side bearing
* values for each glyph. */
public:
DEFINE_SIZE_ARRAY2 (0, longHorMetric, leftSideBearingX);
};
} /* namespace OT */
#endif /* HB_OT_HMTX_TABLE_HH */