/src/harfbuzz/src/OT/glyf/GlyphHeader.hh
Line | Count | Source |
1 | | #ifndef OT_GLYF_GLYPHHEADER_HH |
2 | | #define OT_GLYF_GLYPHHEADER_HH |
3 | | |
4 | | |
5 | | #include "../../hb-open-type.hh" |
6 | | |
7 | | |
8 | | namespace OT { |
9 | | namespace glyf_impl { |
10 | | |
11 | | |
12 | | struct GlyphHeader |
13 | | { |
14 | 0 | bool has_data () const { return numberOfContours; } |
15 | | |
16 | | template <typename accelerator_t> |
17 | | bool get_extents_without_var_scaled (hb_font_t *font, const accelerator_t &glyf_accelerator, |
18 | | hb_codepoint_t gid, hb_glyph_extents_t *extents) const |
19 | 0 | { |
20 | | /* Undocumented rasterizer behavior: shift glyph to the left by (lsb - xMin), i.e., xMin = lsb */ |
21 | | /* extents->x_bearing = hb_min (glyph_header.xMin, glyph_header.xMax); */ |
22 | 0 | int lsb = hb_min (xMin, xMax); |
23 | 0 | (void) glyf_accelerator.hmtx->get_leading_bearing_without_var_unscaled (gid, &lsb); |
24 | 0 | extents->x_bearing = lsb; |
25 | 0 | extents->y_bearing = hb_max (yMin, yMax); |
26 | 0 | extents->width = hb_max (xMin, xMax) - hb_min (xMin, xMax); |
27 | 0 | extents->height = hb_min (yMin, yMax) - hb_max (yMin, yMax); |
28 | |
|
29 | 0 | font->scale_glyph_extents (extents); |
30 | |
|
31 | 0 | return true; |
32 | 0 | } |
33 | | |
34 | | HBINT16 numberOfContours; |
35 | | /* If the number of contours is |
36 | | * greater than or equal to zero, |
37 | | * this is a simple glyph; if negative, |
38 | | * this is a composite glyph. */ |
39 | | FWORD xMin; /* Minimum x for coordinate data. */ |
40 | | FWORD yMin; /* Minimum y for coordinate data. */ |
41 | | FWORD xMax; /* Maximum x for coordinate data. */ |
42 | | FWORD yMax; /* Maximum y for coordinate data. */ |
43 | | public: |
44 | | DEFINE_SIZE_STATIC (10); |
45 | | }; |
46 | | |
47 | | |
48 | | } /* namespace glyf_impl */ |
49 | | } /* namespace OT */ |
50 | | |
51 | | |
52 | | #endif /* OT_GLYF_GLYPHHEADER_HH */ |