|
jpayne@69
|
1 /*
|
|
jpayne@69
|
2 * Copyright © 2019-2020 Ebrahim Byagowi
|
|
jpayne@69
|
3 *
|
|
jpayne@69
|
4 * This is part of HarfBuzz, a text shaping library.
|
|
jpayne@69
|
5 *
|
|
jpayne@69
|
6 * Permission is hereby granted, without written agreement and without
|
|
jpayne@69
|
7 * license or royalty fees, to use, copy, modify, and distribute this
|
|
jpayne@69
|
8 * software and its documentation for any purpose, provided that the
|
|
jpayne@69
|
9 * above copyright notice and the following two paragraphs appear in
|
|
jpayne@69
|
10 * all copies of this software.
|
|
jpayne@69
|
11 *
|
|
jpayne@69
|
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
|
|
jpayne@69
|
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
|
jpayne@69
|
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
|
|
jpayne@69
|
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
|
jpayne@69
|
16 * DAMAGE.
|
|
jpayne@69
|
17 *
|
|
jpayne@69
|
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
|
|
jpayne@69
|
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
jpayne@69
|
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
|
jpayne@69
|
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
|
|
jpayne@69
|
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
|
jpayne@69
|
23 */
|
|
jpayne@69
|
24
|
|
jpayne@69
|
25 #ifndef HB_H_IN
|
|
jpayne@69
|
26 #error "Include <hb.h> instead."
|
|
jpayne@69
|
27 #endif
|
|
jpayne@69
|
28
|
|
jpayne@69
|
29 #ifndef HB_DRAW_H
|
|
jpayne@69
|
30 #define HB_DRAW_H
|
|
jpayne@69
|
31
|
|
jpayne@69
|
32 #include "hb.h"
|
|
jpayne@69
|
33
|
|
jpayne@69
|
34 HB_BEGIN_DECLS
|
|
jpayne@69
|
35
|
|
jpayne@69
|
36 #ifdef HB_EXPERIMENTAL_API
|
|
jpayne@69
|
37 typedef void (*hb_draw_move_to_func_t) (hb_position_t to_x, hb_position_t to_y, void *user_data);
|
|
jpayne@69
|
38 typedef void (*hb_draw_line_to_func_t) (hb_position_t to_x, hb_position_t to_y, void *user_data);
|
|
jpayne@69
|
39 typedef void (*hb_draw_quadratic_to_func_t) (hb_position_t control_x, hb_position_t control_y,
|
|
jpayne@69
|
40 hb_position_t to_x, hb_position_t to_y,
|
|
jpayne@69
|
41 void *user_data);
|
|
jpayne@69
|
42 typedef void (*hb_draw_cubic_to_func_t) (hb_position_t control1_x, hb_position_t control1_y,
|
|
jpayne@69
|
43 hb_position_t control2_x, hb_position_t control2_y,
|
|
jpayne@69
|
44 hb_position_t to_x, hb_position_t to_y,
|
|
jpayne@69
|
45 void *user_data);
|
|
jpayne@69
|
46 typedef void (*hb_draw_close_path_func_t) (void *user_data);
|
|
jpayne@69
|
47
|
|
jpayne@69
|
48 /**
|
|
jpayne@69
|
49 * hb_draw_funcs_t:
|
|
jpayne@69
|
50 *
|
|
jpayne@69
|
51 * Glyph draw callbacks.
|
|
jpayne@69
|
52 *
|
|
jpayne@69
|
53 * _move_to, _line_to and _cubic_to calls are nessecary to be defined but we
|
|
jpayne@69
|
54 * translate _quadratic_to calls to _cubic_to if the callback isn't defined.
|
|
jpayne@69
|
55 *
|
|
jpayne@69
|
56 * Since: EXPERIMENTAL
|
|
jpayne@69
|
57 **/
|
|
jpayne@69
|
58 typedef struct hb_draw_funcs_t hb_draw_funcs_t;
|
|
jpayne@69
|
59
|
|
jpayne@69
|
60 HB_EXTERN void
|
|
jpayne@69
|
61 hb_draw_funcs_set_move_to_func (hb_draw_funcs_t *funcs,
|
|
jpayne@69
|
62 hb_draw_move_to_func_t move_to);
|
|
jpayne@69
|
63
|
|
jpayne@69
|
64 HB_EXTERN void
|
|
jpayne@69
|
65 hb_draw_funcs_set_line_to_func (hb_draw_funcs_t *funcs,
|
|
jpayne@69
|
66 hb_draw_line_to_func_t line_to);
|
|
jpayne@69
|
67
|
|
jpayne@69
|
68 HB_EXTERN void
|
|
jpayne@69
|
69 hb_draw_funcs_set_quadratic_to_func (hb_draw_funcs_t *funcs,
|
|
jpayne@69
|
70 hb_draw_quadratic_to_func_t quadratic_to);
|
|
jpayne@69
|
71
|
|
jpayne@69
|
72 HB_EXTERN void
|
|
jpayne@69
|
73 hb_draw_funcs_set_cubic_to_func (hb_draw_funcs_t *funcs,
|
|
jpayne@69
|
74 hb_draw_cubic_to_func_t cubic_to);
|
|
jpayne@69
|
75
|
|
jpayne@69
|
76 HB_EXTERN void
|
|
jpayne@69
|
77 hb_draw_funcs_set_close_path_func (hb_draw_funcs_t *funcs,
|
|
jpayne@69
|
78 hb_draw_close_path_func_t close_path);
|
|
jpayne@69
|
79
|
|
jpayne@69
|
80 HB_EXTERN hb_draw_funcs_t *
|
|
jpayne@69
|
81 hb_draw_funcs_create (void);
|
|
jpayne@69
|
82
|
|
jpayne@69
|
83 HB_EXTERN hb_draw_funcs_t *
|
|
jpayne@69
|
84 hb_draw_funcs_reference (hb_draw_funcs_t *funcs);
|
|
jpayne@69
|
85
|
|
jpayne@69
|
86 HB_EXTERN void
|
|
jpayne@69
|
87 hb_draw_funcs_destroy (hb_draw_funcs_t *funcs);
|
|
jpayne@69
|
88
|
|
jpayne@69
|
89 HB_EXTERN void
|
|
jpayne@69
|
90 hb_draw_funcs_make_immutable (hb_draw_funcs_t *funcs);
|
|
jpayne@69
|
91
|
|
jpayne@69
|
92 HB_EXTERN hb_bool_t
|
|
jpayne@69
|
93 hb_draw_funcs_is_immutable (hb_draw_funcs_t *funcs);
|
|
jpayne@69
|
94 #endif
|
|
jpayne@69
|
95
|
|
jpayne@69
|
96 HB_END_DECLS
|
|
jpayne@69
|
97
|
|
jpayne@69
|
98 #endif /* HB_DRAW_H */
|
