33 namespace OT {
34
35
36 /*
37 * hmtx -- The Horizontal Metrics Table
38 * vmtx -- The Vertical Metrics Table
39 */
40
41 #define HB_OT_TAG_hmtx HB_TAG('h','m','t','x')
42 #define HB_OT_TAG_vmtx HB_TAG('v','m','t','x')
43
44
45 struct LongMetric
46 {
47 UFWORD advance; /* Advance width/height. */
48 FWORD lsb; /* Leading (left/top) side bearing. */
49 public:
50 DEFINE_SIZE_STATIC (4);
51 };
52
53 struct _mtx
54 {
55 static const hb_tag_t tableTag = HB_TAG('_','m','t','x');
56
57 static const hb_tag_t hmtxTag = HB_OT_TAG_hmtx;
58 static const hb_tag_t vmtxTag = HB_OT_TAG_vmtx;
59
60 inline bool sanitize (hb_sanitize_context_t *c) const
61 {
62 TRACE_SANITIZE (this);
63 /* We don't check for anything specific here. The users of the
64 * struct do all the hard work... */
65 return_trace (true);
66 }
67
68 public:
69 LongMetric longMetric[VAR]; /* Paired advance width and leading
70 * bearing values for each glyph. The
71 * value numOfHMetrics comes from
72 * the 'hhea' table. If the font is
73 * monospaced, only one entry need
74 * be in the array, but that entry is
75 * required. The last entry applies to
76 * all subsequent glyphs. */
77 FWORD leadingBearingX[VAR]; /* Here the advance is assumed
78 * to be the same as the advance
79 * for the last entry above. The
80 * number of entries in this array is
81 * derived from numGlyphs (from 'maxp'
82 * table) minus numberOfLongMetrics.
83 * This generally is used with a run
84 * of monospaced glyphs (e.g., Kanji
85 * fonts or Courier fonts). Only one
86 * run is allowed and it must be at
87 * the end. This allows a monospaced
88 * font to vary the side bearing
89 * values for each glyph. */
90 public:
91 DEFINE_SIZE_ARRAY2 (0, longMetric, leadingBearingX);
92 };
93
94 struct hmtx : _mtx {
95 static const hb_tag_t tableTag = HB_OT_TAG_hmtx;
96 };
97 struct vmtx : _mtx {
98 static const hb_tag_t tableTag = HB_OT_TAG_vmtx;
99 };
100
101 } /* namespace OT */
102
103
104 #endif /* HB_OT_HMTX_TABLE_HH */
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33 namespace OT {
34
35
36 /*
37 * hmtx -- The Horizontal Metrics Table
38 * vmtx -- The Vertical Metrics Table
39 */
40
41 #define HB_OT_TAG_hmtx HB_TAG('h','m','t','x')
42 #define HB_OT_TAG_vmtx HB_TAG('v','m','t','x')
43
44
45 struct LongMetric
46 {
47 UFWORD advance; /* Advance width/height. */
48 FWORD lsb; /* Leading (left/top) side bearing. */
49 public:
50 DEFINE_SIZE_STATIC (4);
51 };
52
53 struct hmtxvmtx
54 {
55 static const hb_tag_t hmtxTag = HB_OT_TAG_hmtx;
56 static const hb_tag_t vmtxTag = HB_OT_TAG_vmtx;
57
58 inline bool sanitize (hb_sanitize_context_t *c) const
59 {
60 TRACE_SANITIZE (this);
61 /* We don't check for anything specific here. The users of the
62 * struct do all the hard work... */
63 return_trace (true);
64 }
65
66 public:
67 LongMetric longMetric[VAR]; /* Paired advance width and leading
68 * bearing values for each glyph. The
69 * value numOfHMetrics comes from
70 * the 'hhea' table. If the font is
71 * monospaced, only one entry need
72 * be in the array, but that entry is
73 * required. The last entry applies to
74 * all subsequent glyphs. */
75 FWORD leadingBearingX[VAR]; /* Here the advance is assumed
76 * to be the same as the advance
77 * for the last entry above. The
78 * number of entries in this array is
79 * derived from numGlyphs (from 'maxp'
80 * table) minus numberOfLongMetrics.
81 * This generally is used with a run
82 * of monospaced glyphs (e.g., Kanji
83 * fonts or Courier fonts). Only one
84 * run is allowed and it must be at
85 * the end. This allows a monospaced
86 * font to vary the side bearing
87 * values for each glyph. */
88 public:
89 DEFINE_SIZE_ARRAY2 (0, longMetric, leadingBearingX);
90 };
91
92 struct hmtx : hmtxvmtx {
93 static const hb_tag_t tableTag = HB_OT_TAG_hmtx;
94 };
95 struct vmtx : hmtxvmtx {
96 static const hb_tag_t tableTag = HB_OT_TAG_vmtx;
97 };
98
99 } /* namespace OT */
100
101
102 #endif /* HB_OT_HMTX_TABLE_HH */
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