89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/* Interface definition for macOS Core text font backend.
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Copyright (C) 2009-2024 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at
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your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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Original author: YAMAMOTO Mitsuharu
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*/
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/* Structure used by Mac `shape' functions for storing layout
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information for each glyph. */
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struct mac_glyph_layout
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{
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/* Range of indices of the characters composed into the group of
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glyphs that share the cursor position with this glyph. The
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members `location' and `length' are in UTF-16 indices. */
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CFRange comp_range;
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/* UTF-16 index in the source string for the first character
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associated with this glyph. */
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CFIndex string_index;
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/* Horizontal and vertical adjustments of glyph position. The
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coordinate space is that of Core Text. So, the `baseline_delta'
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value is negative if the glyph should be placed below the
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baseline. */
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CGFloat advance_delta, baseline_delta;
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/* Typographical width of the glyph. */
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CGFloat advance;
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/* Glyph ID of the glyph. */
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CGGlyph glyph_id;
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};
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#if MAC_OS_X_VERSION_MAX_ALLOWED < 1080
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enum {
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kCTFontTraitItalic = kCTFontItalicTrait,
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kCTFontTraitBold = kCTFontBoldTrait,
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kCTFontTraitMonoSpace = kCTFontMonoSpaceTrait,
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#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
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kCTFontTraitColorGlyphs = kCTFontColorGlyphsTrait
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#else
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kCTFontTraitColorGlyphs = (1 << 13)
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#endif
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};
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enum {
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kCTCharacterCollectionIdentityMapping = kCTIdentityMappingCharacterCollection,
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kCTCharacterCollectionAdobeJapan1 = kCTAdobeJapan1CharacterCollection
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};
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enum {
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kCTFontOrientationDefault = kCTFontDefaultOrientation
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};
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#endif
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#if USE_CT_GLYPH_INFO
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#define mac_font_get_glyph_for_cid mac_ctfont_get_glyph_for_cid
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#endif
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#ifndef kCTVersionNumber10_9
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#define kCTVersionNumber10_9 0x00060000
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#endif
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#define MAC_FONT_CHARACTER_SET_STRING_ATTRIBUTE \
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CFSTR ("MAC_FONT_CHARACTER_SET_STRING_ATTRIBUTE")
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typedef const struct _EmacsScreenFont *ScreenFontRef; /* opaque */
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extern void mac_register_font_driver (struct frame *f);
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extern void *macfont_get_nsctfont (struct font *font);
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extern void macfont_update_antialias_threshold (void);
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/* This is an undocumented function. */
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extern void CGContextSetFontSmoothingStyle(CGContextRef, int)
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__attribute__ ((weak_import));
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