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Third Party Harfbuzz
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0762b354
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Third Party Harfbuzz
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体验新版 GitCode,发现更多精彩内容 >>
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0762b354
编写于
9月 27, 2016
作者:
F
Frédéric Wang
提交者:
Behdad Esfahbod
9月 27, 2016
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差异文件
Document API for MathVariants (#330)
上级
8d622f11
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1
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src/hb-ot-layout.cc
src/hb-ot-layout.cc
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src/hb-ot-layout.cc
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0762b354
...
...
@@ -1352,6 +1352,26 @@ hb_ot_math_get_glyph_kerning (hb_font_t *font,
return
math
.
get_math_glyph_info
().
get_kerning
(
glyph
,
kern
,
correction_height
,
font
);
}
/**
* hb_ot_math_get_glyph_variants:
*
* @font: #hb_font_t from which to retrieve the values
* @glyph: index of the glyph to stretch
* @direction: direction of the stretching
* @start_offset: offset of the first variant to retrieve
* @variants_count: maximum number of variants to retrieve after start_offset
* (IN) and actual number of variants retrieved (OUT)
* @variants: array of size at least @variants_count to store the result
*
* This function tries to retrieve the MathGlyphConstruction for the specified
* font, glyph and direction. Note that only the value of
* #HB_DIRECTION_IS_HORIZONTAL is considered. It provides the corresponding list
* of size variants as an array of hb_math_glyph_variant_t structs.
*
* Return value: the total number of size variants available or 0
*
* Since: 1.4
**/
unsigned
int
hb_ot_math_get_glyph_variants
(
hb_font_t
*
font
,
hb_codepoint_t
glyph
,
...
...
@@ -1367,6 +1387,21 @@ hb_ot_math_get_glyph_variants (hb_font_t *font,
variants
);
}
/**
* hb_ot_math_get_min_connector_overlap:
*
* @font: #hb_font_t from which to retrieve the value
* @direction: direction of the stretching
*
* This function tries to retrieve the MathVariants table for the specified
* font and returns the minimum overlap of connecting glyphs to draw a glyph
* assembly in the specified direction. Note that only the value of
* #HB_DIRECTION_IS_HORIZONTAL is considered.
*
* Return value: requested min connector overlap or 0
*
* Since: 1.4
**/
hb_position_t
hb_ot_math_get_min_connector_overlap
(
hb_font_t
*
font
,
hb_direction_t
direction
)
...
...
@@ -1375,6 +1410,27 @@ hb_ot_math_get_min_connector_overlap (hb_font_t *font,
return
math
.
get_math_variants
().
get_min_connector_overlap
(
direction
,
font
);
}
/**
* hb_ot_math_get_glyph_assembly:
*
* @font: #hb_font_t from which to retrieve the values
* @glyph: index of the glyph to stretch
* @direction: direction of the stretching
* @start_offset: offset of the first glyph part to retrieve
* @parts_count: maximum number of glyph parts to retrieve after start_offset
* (IN) and actual number of parts retrieved (OUT)
* @parts: array of size at least @parts_count to store the result
* @italics_correction: italic correction of the glyph assembly
*
* This function tries to retrieve the GlyphAssembly for the specified font,
* glyph and direction. Note that only the value of #HB_DIRECTION_IS_HORIZONTAL
* is considered. It provides the information necessary to draw the glyph
* assembly as an array of #hb_math_glyph_part_t.
*
* Return value: the total number of parts in the glyph assembly
*
* Since: 1.4
**/
unsigned
int
hb_ot_math_get_glyph_assembly
(
hb_font_t
*
font
,
hb_codepoint_t
glyph
,
...
...
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