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[coretext-font] Implement get_glyph_name()

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This commit is contained in:
Behdad Esfahbod 2024-10-15 13:54:16 -06:00
parent 0ce67f56dd
commit d44cc8a1fc
1 changed files with 27 additions and 1 deletions
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28
src/hb-coretext-font.cc
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@ -245,6 +245,32 @@ hb_coretext_draw_glyph (hb_font_t *font,
}
#endif
static hb_bool_t
hb_coretext_get_glyph_name (hb_font_t *font,
void *font_data HB_UNUSED,
hb_codepoint_t glyph,
char *name, unsigned int size,
void *user_data HB_UNUSED)
{
CGFontRef cg_font = (CGFontRef) (const void *) font->face->data.coretext;
CGGlyph cg_glyph = glyph;
CFStringRef cf_name = CGFontCopyGlyphNameForGlyph (cg_font, cg_glyph);
if (!cf_name)
return false;
CFIndex len = CFStringGetLength (cf_name);
if (len > size - 1)
len = size - 1;
CFStringGetBytes (cf_name, CFRangeMake (0, len),
kCFStringEncodingUTF8, 0, false,
(UInt8 *) name, size, &len);
name[len] = '\0';
return true;
}
static hb_bool_t
hb_coretext_get_glyph_from_name (hb_font_t *font HB_UNUSED,
void *font_data,
@ -300,7 +326,7 @@ static struct hb_coretext_font_funcs_lazy_loader_t : hb_font_funcs_lazy_loader_t
hb_font_funcs_set_glyph_extents_func (funcs, hb_coretext_get_glyph_extents, nullptr, nullptr);
#ifndef HB_NO_OT_FONT_GLYPH_NAMES
//hb_font_funcs_set_glyph_name_func (funcs, hb_coretext_get_glyph_name, nullptr, nullptr);
hb_font_funcs_set_glyph_name_func (funcs, hb_coretext_get_glyph_name, nullptr, nullptr);
hb_font_funcs_set_glyph_from_name_func (funcs, hb_coretext_get_glyph_from_name, nullptr, nullptr);
#endif