1 /* Shared GDI and Uniscribe Font backend declarations for the W32 API.
2 Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
19 #ifndef EMACS_W32FONT_H
20 #define EMACS_W32FONT_H
23 /* Bit 17 of ntmFlags in NEWTEXTMETRIC is set for Postscript OpenType fonts,
24 bit 18 for Truetype OpenType fonts, bit 20 for Type1 fonts. */
25 #ifndef NTM_PS_OPENTYPE
26 #define NTM_PS_OPENTYPE 0x00020000
28 #ifndef NTM_TT_OPENTYPE
29 #define NTM_TT_OPENTYPE 0x00040000
32 #define NTM_TYPE1 0x00100000
35 #define NTMFLAGS_OPENTYPE (NTM_PS_OPENTYPE | NTM_TT_OPENTYPE)
37 struct w32_metric_cache
39 short lbearing
, rbearing
, width
;
43 #define W32METRIC_NO_ATTEMPT 0
44 #define W32METRIC_SUCCESS 1
45 #define W32METRIC_FAIL 2
47 /* The actual structure for a w32 font, that can be cast to struct font.
48 The Uniscribe backend extends this. */
53 unsigned int glyph_idx
;
54 struct w32_metric_cache
**cached_metrics
;
59 /* Macros for getting OS specific information from a font struct. */
60 #define FONT_HANDLE(f) (((struct w32font_info *)(f))->hfont)
61 #define FONT_TEXTMETRIC(f) (((struct w32font_info *)(f))->metrics)
63 #define CACHE_BLOCKSIZE 128
65 Lisp_Object w32font_get_cache
P_ ((FRAME_PTR fe
));
66 Lisp_Object w32font_list_internal
P_ ((Lisp_Object frame
,
67 Lisp_Object font_spec
,
69 Lisp_Object w32font_match_internal
P_ ((Lisp_Object frame
,
70 Lisp_Object font_spec
,
72 int w32font_open_internal
P_ ((FRAME_PTR f
, Lisp_Object font_entity
,
73 int pixel_size
, Lisp_Object font_object
));
74 void w32font_close
P_ ((FRAME_PTR f
, struct font
*font
));
75 int w32font_has_char
P_ ((Lisp_Object entity
, int c
));
76 int w32font_text_extents
P_ ((struct font
*font
, unsigned *code
, int nglyphs
,
77 struct font_metrics
*metrics
));
78 int w32font_draw
P_ ((struct glyph_string
*s
, int from
, int to
,
79 int x
, int y
, int with_background
));
82 int uniscribe_check_otf
P_ ((LOGFONT
*font
, Lisp_Object otf_spec
));
84 Lisp_Object intern_font_name
P_ ((char *));
88 /* arch-tag: ef9d9675-a2a5-4d01-9526-815e9a3da7cb
89 (do not change this comment) */