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/* Interface definition for macOS Core text font backend.
Copyright (C) 2009-2020 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
Original author: YAMAMOTO Mitsuharu
*/
/* Structure used by Mac `shape' functions for storing layout
information for each glyph. */
struct mac_glyph_layout
{
/* Range of indices of the characters composed into the group of
glyphs that share the cursor position with this glyph. The
members `location' and `length' are in UTF-16 indices. */
CFRange comp_range;
/* UTF-16 index in the source string for the first character
associated with this glyph. */
CFIndex string_index;
/* Horizontal and vertical adjustments of glyph position. The
coordinate space is that of Core Text. So, the `baseline_delta'
value is negative if the glyph should be placed below the
baseline. */
CGFloat advance_delta, baseline_delta;
/* Typographical width of the glyph. */
CGFloat advance;
/* Glyph ID of the glyph. */
CGGlyph glyph_id;
};
#if MAC_OS_X_VERSION_MAX_ALLOWED < 1080
enum {
kCTFontTraitItalic = kCTFontItalicTrait,
kCTFontTraitBold = kCTFontBoldTrait,
kCTFontTraitMonoSpace = kCTFontMonoSpaceTrait,
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
kCTFontTraitColorGlyphs = kCTFontColorGlyphsTrait
#else
kCTFontTraitColorGlyphs = (1 << 13)
#endif
};
enum {
kCTCharacterCollectionIdentityMapping = kCTIdentityMappingCharacterCollection,
kCTCharacterCollectionAdobeJapan1 = kCTAdobeJapan1CharacterCollection
};
enum {
kCTFontOrientationDefault = kCTFontDefaultOrientation
};
#endif
#if USE_CT_GLYPH_INFO
#define mac_font_get_glyph_for_cid mac_ctfont_get_glyph_for_cid
#endif
#ifndef kCTVersionNumber10_9
#define kCTVersionNumber10_9 0x00060000
#endif
#define MAC_FONT_CHARACTER_SET_STRING_ATTRIBUTE \
(CFSTR ("MAC_FONT_CHARACTER_SET_STRING_ATTRIBUTE"))
typedef const struct _EmacsScreenFont *ScreenFontRef; /* opaque */
extern void mac_register_font_driver (struct frame *f);
extern void *macfont_get_nsctfont (struct font *font);
extern void macfont_update_antialias_threshold (void);
/* This is an undocumented function. */
extern void CGContextSetFontSmoothingStyle(CGContextRef, int)
__attribute__((weak_import));
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