120 lines
3.9 KiB
C++
120 lines
3.9 KiB
C++
/*
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* Copyright © 2016 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#ifndef HB_OT_POST_TABLE_HH
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#define HB_OT_POST_TABLE_HH
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#include "hb-open-type-private.hh"
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namespace OT {
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/*
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* post -- PostScript
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*/
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#define HB_OT_TAG_post HB_TAG('p','o','s','t')
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struct postV2Tail
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{
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inline bool sanitize (hb_sanitize_context_t *c) const
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{
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TRACE_SANITIZE (this);
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return_trace (numberOfGlyphs.sanitize (c) &&
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c->check_array (glyphNameIndex, sizeof (USHORT), numberOfGlyphs));
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}
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USHORT numberOfGlyphs; /* Number of glyphs (this should be the
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* same as numGlyphs in 'maxp' table). */
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USHORT glyphNameIndex[VAR]; /* This is not an offset, but is the
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* ordinal number of the glyph in 'post'
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* string tables. */
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BYTE namesX[VAR]; /* Glyph names with length bytes [variable]
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* (a Pascal string). */
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DEFINE_SIZE_ARRAY2 (2, glyphNameIndex, namesX);
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};
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struct post
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{
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static const hb_tag_t tableTag = HB_OT_TAG_post;
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inline bool sanitize (hb_sanitize_context_t *c) const
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{
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TRACE_SANITIZE (this);
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if (unlikely (!c->check_struct (this)))
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return_trace (false);
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if (version.to_int () == 0x00020000)
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{
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const postV2Tail &v2 = StructAfter<postV2Tail>(*this);
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return_trace (v2.sanitize (c));
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}
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return_trace (true);
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}
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public:
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FixedVersion<>version; /* 0x00010000 for version 1.0
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* 0x00020000 for version 2.0
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* 0x00025000 for version 2.5 (deprecated)
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* 0x00030000 for version 3.0 */
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Fixed italicAngle; /* Italic angle in counter-clockwise degrees
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* from the vertical. Zero for upright text,
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* negative for text that leans to the right
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* (forward). */
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FWORD underlinePosition; /* This is the suggested distance of the top
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* of the underline from the baseline
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* (negative values indicate below baseline).
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* The PostScript definition of this FontInfo
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* dictionary key (the y coordinate of the
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* center of the stroke) is not used for
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* historical reasons. The value of the
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* PostScript key may be calculated by
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* subtracting half the underlineThickness
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* from the value of this field. */
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FWORD underlineThickness; /* Suggested values for the underline
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thickness. */
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ULONG isFixedPitch; /* Set to 0 if the font is proportionally
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* spaced, non-zero if the font is not
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* proportionally spaced (i.e. monospaced). */
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ULONG minMemType42; /* Minimum memory usage when an OpenType font
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* is downloaded. */
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ULONG maxMemType42; /* Maximum memory usage when an OpenType font
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* is downloaded. */
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ULONG minMemType1; /* Minimum memory usage when an OpenType font
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* is downloaded as a Type 1 font. */
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ULONG maxMemType1; /* Maximum memory usage when an OpenType font
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* is downloaded as a Type 1 font. */
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/*postV2Tail v2[VAR];*/
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DEFINE_SIZE_STATIC (32);
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};
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} /* namespace OT */
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#endif /* HB_OT_POST_TABLE_HH */
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