-
Notifications
You must be signed in to change notification settings - Fork 314
/
Copy pathtermbox2.h
3475 lines (3075 loc) · 123 KB
/
termbox2.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
MIT License
Copyright (c) 2010-2020 nsf <no.smile.face@gmail.com>
2015-2024 Adam Saponara <as@php.net>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#ifndef TERMBOX_H_INCL
#define TERMBOX_H_INCL
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE
#endif
#ifndef _DEFAULT_SOURCE
#define _DEFAULT_SOURCE
#endif
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <signal.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/select.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
#include <termios.h>
#include <unistd.h>
#include <wchar.h>
#ifdef PATH_MAX
#define TB_PATH_MAX PATH_MAX
#else
#define TB_PATH_MAX 4096
#endif
#ifdef __cplusplus
extern "C" {
#endif
// __ffi_start
#define TB_VERSION_STR "2.5.0-dev"
/* The following compile-time options are supported:
*
* TB_OPT_ATTR_W: Integer width of fg and bg attributes. Valid values
* (assuming system support) are 16, 32, and 64. (See
* uintattr_t). 32 or 64 enables output mode
* TB_OUTPUT_TRUECOLOR. 64 enables additional style
* attributes. (See tb_set_output_mode.) Larger values
* consume more memory in exchange for more features.
* Defaults to 16.
*
* TB_OPT_EGC: If set, enable extended grapheme cluster support
* (tb_extend_cell, tb_set_cell_ex). Consumes more memory.
* Defaults off.
*
* TB_OPT_PRINTF_BUF: Write buffer size for printf operations. Represents the
* largest string that can be sent in one call to tb_print*
* and tb_send* functions. Defaults to 4096.
*
* TB_OPT_READ_BUF: Read buffer size for tty reads. Defaults to 64.
*
* TB_OPT_TRUECOLOR: Deprecated. Sets TB_OPT_ATTR_W to 32 if not already set.
*/
#if defined(TB_LIB_OPTS) || 0 // __tb_lib_opts
// Ensure consistent compile-time options when using as a shared library
#undef TB_OPT_ATTR_W
#undef TB_OPT_EGC
#undef TB_OPT_PRINTF_BUF
#undef TB_OPT_READ_BUF
#define TB_OPT_ATTR_W 64
#define TB_OPT_EGC
#endif
// Ensure sane TB_OPT_ATTR_W (16, 32, or 64)
#if defined TB_OPT_ATTR_W && TB_OPT_ATTR_W == 16
#elif defined TB_OPT_ATTR_W && TB_OPT_ATTR_W == 32
#elif defined TB_OPT_ATTR_W && TB_OPT_ATTR_W == 64
#else
#undef TB_OPT_ATTR_W
#if defined TB_OPT_TRUECOLOR // Deprecated. Back-compat for old flag.
#define TB_OPT_ATTR_W 32
#else
#define TB_OPT_ATTR_W 16
#endif
#endif
/* ASCII key constants (tb_event.key) */
#define TB_KEY_CTRL_TILDE 0x00
#define TB_KEY_CTRL_2 0x00 /* clash with 'CTRL_TILDE' */
#define TB_KEY_CTRL_A 0x01
#define TB_KEY_CTRL_B 0x02
#define TB_KEY_CTRL_C 0x03
#define TB_KEY_CTRL_D 0x04
#define TB_KEY_CTRL_E 0x05
#define TB_KEY_CTRL_F 0x06
#define TB_KEY_CTRL_G 0x07
#define TB_KEY_BACKSPACE 0x08
#define TB_KEY_CTRL_H 0x08 /* clash with 'CTRL_BACKSPACE' */
#define TB_KEY_TAB 0x09
#define TB_KEY_CTRL_I 0x09 /* clash with 'TAB' */
#define TB_KEY_CTRL_J 0x0a
#define TB_KEY_CTRL_K 0x0b
#define TB_KEY_CTRL_L 0x0c
#define TB_KEY_ENTER 0x0d
#define TB_KEY_CTRL_M 0x0d /* clash with 'ENTER' */
#define TB_KEY_CTRL_N 0x0e
#define TB_KEY_CTRL_O 0x0f
#define TB_KEY_CTRL_P 0x10
#define TB_KEY_CTRL_Q 0x11
#define TB_KEY_CTRL_R 0x12
#define TB_KEY_CTRL_S 0x13
#define TB_KEY_CTRL_T 0x14
#define TB_KEY_CTRL_U 0x15
#define TB_KEY_CTRL_V 0x16
#define TB_KEY_CTRL_W 0x17
#define TB_KEY_CTRL_X 0x18
#define TB_KEY_CTRL_Y 0x19
#define TB_KEY_CTRL_Z 0x1a
#define TB_KEY_ESC 0x1b
#define TB_KEY_CTRL_LSQ_BRACKET 0x1b /* clash with 'ESC' */
#define TB_KEY_CTRL_3 0x1b /* clash with 'ESC' */
#define TB_KEY_CTRL_4 0x1c
#define TB_KEY_CTRL_BACKSLASH 0x1c /* clash with 'CTRL_4' */
#define TB_KEY_CTRL_5 0x1d
#define TB_KEY_CTRL_RSQ_BRACKET 0x1d /* clash with 'CTRL_5' */
#define TB_KEY_CTRL_6 0x1e
#define TB_KEY_CTRL_7 0x1f
#define TB_KEY_CTRL_SLASH 0x1f /* clash with 'CTRL_7' */
#define TB_KEY_CTRL_UNDERSCORE 0x1f /* clash with 'CTRL_7' */
#define TB_KEY_SPACE 0x20
#define TB_KEY_BACKSPACE2 0x7f
#define TB_KEY_CTRL_8 0x7f /* clash with 'BACKSPACE2' */
#define tb_key_i(i) 0xffff - (i)
/* Terminal-dependent key constants (tb_event.key) and terminfo capabilities */
/* BEGIN codegen h */
/* Produced by ./codegen.sh on Thu, 13 Jul 2023 05:46:13 +0000 */
#define TB_KEY_F1 (0xffff - 0)
#define TB_KEY_F2 (0xffff - 1)
#define TB_KEY_F3 (0xffff - 2)
#define TB_KEY_F4 (0xffff - 3)
#define TB_KEY_F5 (0xffff - 4)
#define TB_KEY_F6 (0xffff - 5)
#define TB_KEY_F7 (0xffff - 6)
#define TB_KEY_F8 (0xffff - 7)
#define TB_KEY_F9 (0xffff - 8)
#define TB_KEY_F10 (0xffff - 9)
#define TB_KEY_F11 (0xffff - 10)
#define TB_KEY_F12 (0xffff - 11)
#define TB_KEY_INSERT (0xffff - 12)
#define TB_KEY_DELETE (0xffff - 13)
#define TB_KEY_HOME (0xffff - 14)
#define TB_KEY_END (0xffff - 15)
#define TB_KEY_PGUP (0xffff - 16)
#define TB_KEY_PGDN (0xffff - 17)
#define TB_KEY_ARROW_UP (0xffff - 18)
#define TB_KEY_ARROW_DOWN (0xffff - 19)
#define TB_KEY_ARROW_LEFT (0xffff - 20)
#define TB_KEY_ARROW_RIGHT (0xffff - 21)
#define TB_KEY_BACK_TAB (0xffff - 22)
#define TB_KEY_MOUSE_LEFT (0xffff - 23)
#define TB_KEY_MOUSE_RIGHT (0xffff - 24)
#define TB_KEY_MOUSE_MIDDLE (0xffff - 25)
#define TB_KEY_MOUSE_RELEASE (0xffff - 26)
#define TB_KEY_MOUSE_WHEEL_UP (0xffff - 27)
#define TB_KEY_MOUSE_WHEEL_DOWN (0xffff - 28)
#define TB_CAP_F1 0
#define TB_CAP_F2 1
#define TB_CAP_F3 2
#define TB_CAP_F4 3
#define TB_CAP_F5 4
#define TB_CAP_F6 5
#define TB_CAP_F7 6
#define TB_CAP_F8 7
#define TB_CAP_F9 8
#define TB_CAP_F10 9
#define TB_CAP_F11 10
#define TB_CAP_F12 11
#define TB_CAP_INSERT 12
#define TB_CAP_DELETE 13
#define TB_CAP_HOME 14
#define TB_CAP_END 15
#define TB_CAP_PGUP 16
#define TB_CAP_PGDN 17
#define TB_CAP_ARROW_UP 18
#define TB_CAP_ARROW_DOWN 19
#define TB_CAP_ARROW_LEFT 20
#define TB_CAP_ARROW_RIGHT 21
#define TB_CAP_BACK_TAB 22
#define TB_CAP__COUNT_KEYS 23
#define TB_CAP_ENTER_CA 23
#define TB_CAP_EXIT_CA 24
#define TB_CAP_SHOW_CURSOR 25
#define TB_CAP_HIDE_CURSOR 26
#define TB_CAP_CLEAR_SCREEN 27
#define TB_CAP_SGR0 28
#define TB_CAP_UNDERLINE 29
#define TB_CAP_BOLD 30
#define TB_CAP_BLINK 31
#define TB_CAP_ITALIC 32
#define TB_CAP_REVERSE 33
#define TB_CAP_ENTER_KEYPAD 34
#define TB_CAP_EXIT_KEYPAD 35
#define TB_CAP_DIM 36
#define TB_CAP_INVISIBLE 37
#define TB_CAP__COUNT 38
/* END codegen h */
/* Some hard-coded caps */
#define TB_HARDCAP_ENTER_MOUSE "\x1b[?1000h\x1b[?1002h\x1b[?1015h\x1b[?1006h"
#define TB_HARDCAP_EXIT_MOUSE "\x1b[?1006l\x1b[?1015l\x1b[?1002l\x1b[?1000l"
#define TB_HARDCAP_STRIKEOUT "\x1b[9m"
#define TB_HARDCAP_UNDERLINE_2 "\x1b[21m"
#define TB_HARDCAP_OVERLINE "\x1b[53m"
/* Colors (numeric) and attributes (bitwise) (tb_cell.fg, tb_cell.bg) */
#define TB_DEFAULT 0x0000
#define TB_BLACK 0x0001
#define TB_RED 0x0002
#define TB_GREEN 0x0003
#define TB_YELLOW 0x0004
#define TB_BLUE 0x0005
#define TB_MAGENTA 0x0006
#define TB_CYAN 0x0007
#define TB_WHITE 0x0008
#if TB_OPT_ATTR_W == 16
#define TB_BOLD 0x0100
#define TB_UNDERLINE 0x0200
#define TB_REVERSE 0x0400
#define TB_ITALIC 0x0800
#define TB_BLINK 0x1000
#define TB_HI_BLACK 0x2000
#define TB_BRIGHT 0x4000
#define TB_DIM 0x8000
#define TB_256_BLACK TB_HI_BLACK // TB_256_BLACK is deprecated
#else // 32 or 64
#define TB_BOLD 0x01000000
#define TB_UNDERLINE 0x02000000
#define TB_REVERSE 0x04000000
#define TB_ITALIC 0x08000000
#define TB_BLINK 0x10000000
#define TB_HI_BLACK 0x20000000
#define TB_BRIGHT 0x40000000
#define TB_DIM 0x80000000
#define TB_TRUECOLOR_BOLD TB_BOLD // TB_TRUECOLOR_* is deprecated
#define TB_TRUECOLOR_UNDERLINE TB_UNDERLINE
#define TB_TRUECOLOR_REVERSE TB_REVERSE
#define TB_TRUECOLOR_ITALIC TB_ITALIC
#define TB_TRUECOLOR_BLINK TB_BLINK
#define TB_TRUECOLOR_BLACK TB_HI_BLACK
#endif
#if TB_OPT_ATTR_W == 64
#define TB_STRIKEOUT 0x0000000100000000
#define TB_UNDERLINE_2 0x0000000200000000
#define TB_OVERLINE 0x0000000400000000
#define TB_INVISIBLE 0x0000000800000000
#endif
/* Event types (tb_event.type) */
#define TB_EVENT_KEY 1
#define TB_EVENT_RESIZE 2
#define TB_EVENT_MOUSE 3
/* Key modifiers (bitwise) (tb_event.mod) */
#define TB_MOD_ALT 1
#define TB_MOD_CTRL 2
#define TB_MOD_SHIFT 4
#define TB_MOD_MOTION 8
/* Input modes (bitwise) (tb_set_input_mode) */
#define TB_INPUT_CURRENT 0
#define TB_INPUT_ESC 1
#define TB_INPUT_ALT 2
#define TB_INPUT_MOUSE 4
/* Output modes (tb_set_output_mode) */
#define TB_OUTPUT_CURRENT 0
#define TB_OUTPUT_NORMAL 1
#define TB_OUTPUT_256 2
#define TB_OUTPUT_216 3
#define TB_OUTPUT_GRAYSCALE 4
#if TB_OPT_ATTR_W >= 32
#define TB_OUTPUT_TRUECOLOR 5
#endif
/* Common function return values unless otherwise noted.
*
* Library behavior is undefined after receiving TB_ERR_MEM. Callers may
* attempt reinitializing by freeing memory, invoking tb_shutdown, then
* tb_init.
*/
#define TB_OK 0
#define TB_ERR -1
#define TB_ERR_NEED_MORE -2
#define TB_ERR_INIT_ALREADY -3
#define TB_ERR_INIT_OPEN -4
#define TB_ERR_MEM -5
#define TB_ERR_NO_EVENT -6
#define TB_ERR_NO_TERM -7
#define TB_ERR_NOT_INIT -8
#define TB_ERR_OUT_OF_BOUNDS -9
#define TB_ERR_READ -10
#define TB_ERR_RESIZE_IOCTL -11
#define TB_ERR_RESIZE_PIPE -12
#define TB_ERR_RESIZE_SIGACTION -13
#define TB_ERR_POLL -14
#define TB_ERR_TCGETATTR -15
#define TB_ERR_TCSETATTR -16
#define TB_ERR_UNSUPPORTED_TERM -17
#define TB_ERR_RESIZE_WRITE -18
#define TB_ERR_RESIZE_POLL -19
#define TB_ERR_RESIZE_READ -20
#define TB_ERR_RESIZE_SSCANF -21
#define TB_ERR_CAP_COLLISION -22
#define TB_ERR_SELECT TB_ERR_POLL
#define TB_ERR_RESIZE_SELECT TB_ERR_RESIZE_POLL
/* Deprecated. Function types to be used with tb_set_func(). */
#define TB_FUNC_EXTRACT_PRE 0
#define TB_FUNC_EXTRACT_POST 1
/* Define this to set the size of the buffer used in tb_printf()
* and tb_sendf()
*/
#ifndef TB_OPT_PRINTF_BUF
#define TB_OPT_PRINTF_BUF 4096
#endif
/* Define this to set the size of the read buffer used when reading
* from the tty
*/
#ifndef TB_OPT_READ_BUF
#define TB_OPT_READ_BUF 64
#endif
/* Define this for limited back compat with termbox v1 */
#ifdef TB_OPT_V1_COMPAT
#define tb_change_cell tb_set_cell
#define tb_put_cell(x, y, c) tb_set_cell((x), (y), (c)->ch, (c)->fg, (c)->bg)
#define tb_set_clear_attributes tb_set_clear_attrs
#define tb_select_input_mode tb_set_input_mode
#define tb_select_output_mode tb_set_output_mode
#endif
/* Define these to swap in a different allocator */
#ifndef tb_malloc
#define tb_malloc malloc
#define tb_realloc realloc
#define tb_free free
#endif
#if TB_OPT_ATTR_W == 64
typedef uint64_t uintattr_t;
#elif TB_OPT_ATTR_W == 32
typedef uint32_t uintattr_t;
#else // 16
typedef uint16_t uintattr_t;
#endif
/* The terminal screen is represented as 2d array of cells. The structure is
* optimized for dealing with single-width (wcwidth()==1) Unicode codepoints,
* however some support for grapheme clusters (e.g., combining diacritical
* marks) and wide codepoints (e.g., Hiragana) is provided through ech, nech,
* cech via tb_set_cell_ex(). ech is only valid when nech>0, otherwise ch is
* used.
*
* For non-single-width codepoints, given N=wcwidth(ch)/wcswidth(ech):
*
* when N==0: termbox forces a single-width cell. Callers should avoid this
* if aiming to render text accurately.
*
* when N>1: termbox zeroes out the following N-1 cells and skips sending
* them to the tty. So, e.g., if the caller sets x=0,y=0 to an N==2
* codepoint, the caller's next set should be at x=2,y=0. Anything
* set at x=1,y=0 will be ignored. If there are not enough columns
* remaining on the line to render N width, spaces are sent
* instead.
*
* See tb_present() for implementation.
*/
struct tb_cell {
uint32_t ch; /* a Unicode codepoint */
uintattr_t fg; /* bitwise foreground attributes */
uintattr_t bg; /* bitwise background attributes */
#ifdef TB_OPT_EGC
uint32_t *ech; /* a grapheme cluster of Unicode codepoints, 0-terminated */
size_t nech; /* num elements in ech, 0 means use ch instead of ech */
size_t cech; /* num elements allocated for ech */
#endif
};
/* An incoming event from the tty.
*
* Given the event type, the following fields are relevant:
*
* when TB_EVENT_KEY: (key XOR ch, one will be zero), mod. Note there is
* overlap between TB_MOD_CTRL and TB_KEY_CTRL_*.
* TB_MOD_CTRL and TB_MOD_SHIFT are only set as
* modifiers to TB_KEY_ARROW_*.
*
* when TB_EVENT_RESIZE: w, h
*
* when TB_EVENT_MOUSE: key (TB_KEY_MOUSE_*), x, y
*/
struct tb_event {
uint8_t type; /* one of TB_EVENT_* constants */
uint8_t mod; /* bitwise TB_MOD_* constants */
uint16_t key; /* one of TB_KEY_* constants */
uint32_t ch; /* a Unicode codepoint */
int32_t w; /* resize width */
int32_t h; /* resize height */
int32_t x; /* mouse x */
int32_t y; /* mouse y */
};
/* Initializes the termbox library. This function should be called before any
* other functions. tb_init() is equivalent to tb_init_file("/dev/tty"). After
* successful initialization, the library must be finalized using the
* tb_shutdown() function.
*/
int tb_init(void);
int tb_init_file(const char *path);
int tb_init_fd(int ttyfd);
int tb_init_rwfd(int rfd, int wfd);
int tb_shutdown(void);
/* Returns the size of the internal back buffer (which is the same as terminal's
* window size in rows and columns). The internal buffer can be resized after
* tb_clear() or tb_present() function calls. Both dimensions have an
* unspecified negative value when called before tb_init() or after
* tb_shutdown().
*/
int tb_width(void);
int tb_height(void);
/* Clears the internal back buffer using TB_DEFAULT color or the
* color/attributes set by tb_set_clear_attrs() function.
*/
int tb_clear(void);
int tb_set_clear_attrs(uintattr_t fg, uintattr_t bg);
/* Synchronizes the internal back buffer with the terminal by writing to tty. */
int tb_present(void);
/* Clears the internal front buffer effectively forcing a complete re-render of
* the back buffer to the tty. It is not necessary to call this under normal
* circumstances. */
int tb_invalidate(void);
/* Sets the position of the cursor. Upper-left character is (0, 0). */
int tb_set_cursor(int cx, int cy);
int tb_hide_cursor(void);
/* Set cell contents in the internal back buffer at the specified position.
*
* Use tb_set_cell_ex() for rendering grapheme clusters (e.g., combining
* diacritical marks).
*
* Function tb_set_cell(x, y, ch, fg, bg) is equivalent to
* tb_set_cell_ex(x, y, &ch, 1, fg, bg).
*
* Function tb_extend_cell() is a shortcut for appending 1 codepoint to
* cell->ech.
*/
int tb_set_cell(int x, int y, uint32_t ch, uintattr_t fg, uintattr_t bg);
int tb_set_cell_ex(int x, int y, uint32_t *ch, size_t nch, uintattr_t fg,
uintattr_t bg);
int tb_extend_cell(int x, int y, uint32_t ch);
/* Sets the input mode. Termbox has two input modes:
*
* 1. TB_INPUT_ESC
* When escape (\x1b) is in the buffer and there's no match for an escape
* sequence, a key event for TB_KEY_ESC is returned.
*
* 2. TB_INPUT_ALT
* When escape (\x1b) is in the buffer and there's no match for an escape
* sequence, the next keyboard event is returned with a TB_MOD_ALT modifier.
*
* You can also apply TB_INPUT_MOUSE via bitwise OR operation to either of the
* modes (e.g., TB_INPUT_ESC | TB_INPUT_MOUSE) to receive TB_EVENT_MOUSE events.
* If none of the main two modes were set, but the mouse mode was, TB_INPUT_ESC
* mode is used. If for some reason you've decided to use
* (TB_INPUT_ESC | TB_INPUT_ALT) combination, it will behave as if only
* TB_INPUT_ESC was selected.
*
* If mode is TB_INPUT_CURRENT, the function returns the current input mode.
*
* The default input mode is TB_INPUT_ESC.
*/
int tb_set_input_mode(int mode);
/* Sets the termbox output mode. Termbox has multiple output modes:
*
* 1. TB_OUTPUT_NORMAL => [0..8]
*
* This mode provides 8 different colors:
* TB_BLACK, TB_RED, TB_GREEN, TB_YELLOW,
* TB_BLUE, TB_MAGENTA, TB_CYAN, TB_WHITE
*
* Plus TB_DEFAULT which skips sending a color code (i.e., uses the
* terminal's default color).
*
* Colors (including TB_DEFAULT) may be bitwise OR'd with attributes:
* TB_BOLD, TB_UNDERLINE, TB_REVERSE, TB_ITALIC, TB_BLINK, TB_BRIGHT,
* TB_DIM
*
* The following style attributes are also available if compiled with
* TB_OPT_ATTR_W set to 64:
* TB_STRIKEOUT, TB_UNDERLINE_2, TB_OVERLINE, TB_INVISIBLE
*
* As in all modes, the value 0 is interpreted as TB_DEFAULT for
* convenience.
*
* Some notes: TB_REVERSE can be applied as either fg or bg attributes for
* the same effect. TB_BRIGHT can be applied to either fg or bg. The rest of
* the attributes apply to fg only and are ignored as bg attributes.
*
* Example usage:
* tb_set_cell(x, y, '@', TB_BLACK | TB_BOLD, TB_RED);
*
* 2. TB_OUTPUT_256 => [0..255] + TB_HI_BLACK
*
* In this mode you get 256 distinct colors (plus default):
* 0x00 (1): TB_DEFAULT
* TB_HI_BLACK (1): TB_BLACK in TB_OUTPUT_NORMAL
* 0x01..0x07 (7): the next 7 colors as in TB_OUTPUT_NORMAL
* 0x08..0x0f (8): bright versions of the above
* 0x10..0xe7 (216): 216 different colors
* 0xe8..0xff (24): 24 different shades of gray
*
* All TB_* style attributes except TB_BRIGHT may be bitwise OR'd as in
* TB_OUTPUT_NORMAL.
*
* Note TB_HI_BLACK must be used for black, as 0x00 represents default.
*
* 3. TB_OUTPUT_216 => [0..216]
*
* This mode supports the 216-color range of TB_OUTPUT_256 only, but you
* don't need to provide an offset:
* 0x00 (1): TB_DEFAULT
* 0x01..0xd8 (216): 216 different colors
*
* 4. TB_OUTPUT_GRAYSCALE => [0..24]
*
* This mode supports the 24-color range of TB_OUTPUT_256 only, but you
* don't need to provide an offset:
* 0x00 (1): TB_DEFAULT
* 0x01..0x18 (24): 24 different shades of gray
*
* 5. TB_OUTPUT_TRUECOLOR => [0x000000..0xffffff] + TB_HI_BLACK
*
* This mode provides 24-bit color on supported terminals. The format is
* 0xRRGGBB.
*
* All TB_* style attributes except TB_BRIGHT may be bitwise OR'd as in
* TB_OUTPUT_NORMAL.
*
* Note TB_HI_BLACK must be used for black, as 0x000000 represents default.
*
* If mode is TB_OUTPUT_CURRENT, the function returns the current output mode.
*
* The default output mode is TB_OUTPUT_NORMAL.
*
* To use the terminal default color (i.e., to not send an escape code), pass
* TB_DEFAULT. For convenience, the value 0 is interpreted as TB_DEFAULT in
* all modes.
*
* Note, cell attributes persist after switching output modes. Any translation
* between, for example, TB_OUTPUT_NORMAL's TB_RED and TB_OUTPUT_TRUECOLOR's
* 0xff0000 must be performed by the caller. Also note that cells previously
* rendered in one mode may persist unchanged until the front buffer is cleared
* (such as after a resize event) at which point it will be re-interpreted and
* flushed according to the current mode. Callers may invoke tb_invalidate if
* it is desirable to immediately re-interpret and flush the entire screen
* according to the current mode.
*
* Note, not all terminals support all output modes, especially beyond
* TB_OUTPUT_NORMAL. There is also no very reliable way to determine color
* support dynamically. If portability is desired, callers are recommended to
* use TB_OUTPUT_NORMAL or make output mode end-user configurable. The same
* advice applies to style attributes.
*/
int tb_set_output_mode(int mode);
/* Wait for an event up to timeout_ms milliseconds and fill the event structure
* with it. If no event is available within the timeout period, TB_ERR_NO_EVENT
* is returned. On a resize event, the underlying select(2) call may be
* interrupted, yielding a return code of TB_ERR_POLL. In this case, you may
* check errno via tb_last_errno(). If it's EINTR, you can safely ignore that
* and call tb_peek_event() again.
*/
int tb_peek_event(struct tb_event *event, int timeout_ms);
/* Same as tb_peek_event except no timeout. */
int tb_poll_event(struct tb_event *event);
/* Internal termbox FDs that can be used with poll() / select(). Must call
* tb_poll_event() / tb_peek_event() if activity is detected. */
int tb_get_fds(int *ttyfd, int *resizefd);
/* Print and printf functions. Specify param out_w to determine width of printed
* string. Incomplete trailing UTF-8 byte sequences are replaced with U+FFFD.
* For finer control, use tb_set_cell().
*/
int tb_print(int x, int y, uintattr_t fg, uintattr_t bg, const char *str);
int tb_printf(int x, int y, uintattr_t fg, uintattr_t bg, const char *fmt, ...);
int tb_print_ex(int x, int y, uintattr_t fg, uintattr_t bg, size_t *out_w,
const char *str);
int tb_printf_ex(int x, int y, uintattr_t fg, uintattr_t bg, size_t *out_w,
const char *fmt, ...);
/* Send raw bytes to terminal. */
int tb_send(const char *buf, size_t nbuf);
int tb_sendf(const char *fmt, ...);
/* Deprecated. Set custom functions. fn_type is one of TB_FUNC_* constants, fn
* is a compatible function pointer, or NULL to clear.
*
* TB_FUNC_EXTRACT_PRE:
* If specified, invoke this function BEFORE termbox tries to extract any
* escape sequences from the input buffer.
*
* TB_FUNC_EXTRACT_POST:
* If specified, invoke this function AFTER termbox tries (and fails) to
* extract any escape sequences from the input buffer.
*/
int tb_set_func(int fn_type, int (*fn)(struct tb_event *, size_t *));
/* Return byte length of codepoint given first byte of UTF-8 sequence (1-6). */
int tb_utf8_char_length(char c);
/* Convert UTF-8 null-terminated byte sequence to UTF-32 codepoint.
*
* If `c` is an empty C string, return 0. `out` is left unchanged.
*
* If a null byte is encountered in the middle of the codepoint, return a
* negative number indicating how many bytes were processed. `out` is left
* unchanged.
*
* Otherwise, return byte length of codepoint (1-6).
*/
int tb_utf8_char_to_unicode(uint32_t *out, const char *c);
/* Convert UTF-32 codepoint to UTF-8 null-terminated byte sequence.
*
* `out` must be char[7] or greater. Return byte length of codepoint (1-6).
*/
int tb_utf8_unicode_to_char(char *out, uint32_t c);
/* Library utility functions */
int tb_last_errno(void);
const char *tb_strerror(int err);
struct tb_cell *tb_cell_buffer(void); // Deprecated
int tb_has_truecolor(void);
int tb_has_egc(void);
int tb_attr_width(void);
const char *tb_version(void);
/* Deprecation notice!
*
* The following will be removed in version 3.x (ABI version 3):
*
* TB_256_BLACK (use TB_HI_BLACK)
* TB_OPT_TRUECOLOR (use TB_OPT_ATTR_W)
* TB_TRUECOLOR_BOLD (use TB_BOLD)
* TB_TRUECOLOR_UNDERLINE (use TB_UNDERLINE)
* TB_TRUECOLOR_REVERSE (use TB_REVERSE)
* TB_TRUECOLOR_ITALIC (use TB_ITALICe)
* TB_TRUECOLOR_BLINK (use TB_BLINK)
* TB_TRUECOLOR_BLACK (use TB_HI_BLACK)
* tb_cell_buffer
* tb_set_func
* TB_FUNC_EXTRACT_PRE
* TB_FUNC_EXTRACT_POST
*/
#ifdef __cplusplus
}
#endif
#endif /* TERMBOX_H_INCL */
#ifdef TB_IMPL
#define if_err_return(rv, expr) \
if (((rv) = (expr)) != TB_OK) return (rv)
#define if_err_break(rv, expr) \
if (((rv) = (expr)) != TB_OK) break
#define if_ok_return(rv, expr) \
if (((rv) = (expr)) == TB_OK) return (rv)
#define if_ok_or_need_more_return(rv, expr) \
if (((rv) = (expr)) == TB_OK || (rv) == TB_ERR_NEED_MORE) return (rv)
#define send_literal(rv, a) \
if_err_return((rv), bytebuf_nputs(&global.out, (a), sizeof(a) - 1))
#define send_num(rv, nbuf, n) \
if_err_return((rv), \
bytebuf_nputs(&global.out, (nbuf), convert_num((n), (nbuf))))
#define snprintf_or_return(rv, str, sz, fmt, ...) \
do { \
(rv) = snprintf((str), (sz), (fmt), __VA_ARGS__); \
if ((rv) < 0 || (rv) >= (int)(sz)) return TB_ERR; \
} while (0)
#define if_not_init_return() \
if (!global.initialized) return TB_ERR_NOT_INIT
struct bytebuf_t {
char *buf;
size_t len;
size_t cap;
};
struct cellbuf_t {
int width;
int height;
struct tb_cell *cells;
};
struct cap_trie_t {
char c;
struct cap_trie_t *children;
size_t nchildren;
int is_leaf;
uint16_t key;
uint8_t mod;
};
struct tb_global_t {
int ttyfd;
int rfd;
int wfd;
int ttyfd_open;
int resize_pipefd[2];
int width;
int height;
int cursor_x;
int cursor_y;
int last_x;
int last_y;
uintattr_t fg;
uintattr_t bg;
uintattr_t last_fg;
uintattr_t last_bg;
int input_mode;
int output_mode;
char *terminfo;
size_t nterminfo;
const char *caps[TB_CAP__COUNT];
struct cap_trie_t cap_trie;
struct bytebuf_t in;
struct bytebuf_t out;
struct cellbuf_t back;
struct cellbuf_t front;
struct termios orig_tios;
int has_orig_tios;
int last_errno;
int initialized;
int (*fn_extract_esc_pre)(struct tb_event *, size_t *);
int (*fn_extract_esc_post)(struct tb_event *, size_t *);
char errbuf[1024];
};
static struct tb_global_t global = {0};
/* BEGIN codegen c */
/* Produced by ./codegen.sh on Thu, 13 Jul 2023 05:46:13 +0000 */
static const int16_t terminfo_cap_indexes[] = {
66, // kf1 (TB_CAP_F1)
68, // kf2 (TB_CAP_F2)
69, // kf3 (TB_CAP_F3)
70, // kf4 (TB_CAP_F4)
71, // kf5 (TB_CAP_F5)
72, // kf6 (TB_CAP_F6)
73, // kf7 (TB_CAP_F7)
74, // kf8 (TB_CAP_F8)
75, // kf9 (TB_CAP_F9)
67, // kf10 (TB_CAP_F10)
216, // kf11 (TB_CAP_F11)
217, // kf12 (TB_CAP_F12)
77, // kich1 (TB_CAP_INSERT)
59, // kdch1 (TB_CAP_DELETE)
76, // khome (TB_CAP_HOME)
164, // kend (TB_CAP_END)
82, // kpp (TB_CAP_PGUP)
81, // knp (TB_CAP_PGDN)
87, // kcuu1 (TB_CAP_ARROW_UP)
61, // kcud1 (TB_CAP_ARROW_DOWN)
79, // kcub1 (TB_CAP_ARROW_LEFT)
83, // kcuf1 (TB_CAP_ARROW_RIGHT)
148, // kcbt (TB_CAP_BACK_TAB)
28, // smcup (TB_CAP_ENTER_CA)
40, // rmcup (TB_CAP_EXIT_CA)
16, // cnorm (TB_CAP_SHOW_CURSOR)
13, // civis (TB_CAP_HIDE_CURSOR)
5, // clear (TB_CAP_CLEAR_SCREEN)
39, // sgr0 (TB_CAP_SGR0)
36, // smul (TB_CAP_UNDERLINE)
27, // bold (TB_CAP_BOLD)
26, // blink (TB_CAP_BLINK)
311, // sitm (TB_CAP_ITALIC)
34, // rev (TB_CAP_REVERSE)
89, // smkx (TB_CAP_ENTER_KEYPAD)
88, // rmkx (TB_CAP_EXIT_KEYPAD)
30, // dim (TB_CAP_DIM)
32, // invis (TB_CAP_INVISIBLE)
};
// xterm
static const char *xterm_caps[] = {
"\033OP", // kf1 (TB_CAP_F1)
"\033OQ", // kf2 (TB_CAP_F2)
"\033OR", // kf3 (TB_CAP_F3)
"\033OS", // kf4 (TB_CAP_F4)
"\033[15~", // kf5 (TB_CAP_F5)
"\033[17~", // kf6 (TB_CAP_F6)
"\033[18~", // kf7 (TB_CAP_F7)
"\033[19~", // kf8 (TB_CAP_F8)
"\033[20~", // kf9 (TB_CAP_F9)
"\033[21~", // kf10 (TB_CAP_F10)
"\033[23~", // kf11 (TB_CAP_F11)
"\033[24~", // kf12 (TB_CAP_F12)
"\033[2~", // kich1 (TB_CAP_INSERT)
"\033[3~", // kdch1 (TB_CAP_DELETE)
"\033OH", // khome (TB_CAP_HOME)
"\033OF", // kend (TB_CAP_END)
"\033[5~", // kpp (TB_CAP_PGUP)
"\033[6~", // knp (TB_CAP_PGDN)
"\033OA", // kcuu1 (TB_CAP_ARROW_UP)
"\033OB", // kcud1 (TB_CAP_ARROW_DOWN)
"\033OD", // kcub1 (TB_CAP_ARROW_LEFT)
"\033OC", // kcuf1 (TB_CAP_ARROW_RIGHT)
"\033[Z", // kcbt (TB_CAP_BACK_TAB)
"\033[?1049h\033[22;0;0t", // smcup (TB_CAP_ENTER_CA)
"\033[?1049l\033[23;0;0t", // rmcup (TB_CAP_EXIT_CA)
"\033[?12l\033[?25h", // cnorm (TB_CAP_SHOW_CURSOR)
"\033[?25l", // civis (TB_CAP_HIDE_CURSOR)
"\033[H\033[2J", // clear (TB_CAP_CLEAR_SCREEN)
"\033(B\033[m", // sgr0 (TB_CAP_SGR0)
"\033[4m", // smul (TB_CAP_UNDERLINE)
"\033[1m", // bold (TB_CAP_BOLD)
"\033[5m", // blink (TB_CAP_BLINK)
"\033[3m", // sitm (TB_CAP_ITALIC)
"\033[7m", // rev (TB_CAP_REVERSE)
"\033[?1h\033=", // smkx (TB_CAP_ENTER_KEYPAD)
"\033[?1l\033>", // rmkx (TB_CAP_EXIT_KEYPAD)
"\033[2m", // dim (TB_CAP_DIM)
"\033[8m", // invis (TB_CAP_INVISIBLE)
};
// linux
static const char *linux_caps[] = {
"\033[[A", // kf1 (TB_CAP_F1)
"\033[[B", // kf2 (TB_CAP_F2)
"\033[[C", // kf3 (TB_CAP_F3)
"\033[[D", // kf4 (TB_CAP_F4)
"\033[[E", // kf5 (TB_CAP_F5)
"\033[17~", // kf6 (TB_CAP_F6)
"\033[18~", // kf7 (TB_CAP_F7)
"\033[19~", // kf8 (TB_CAP_F8)
"\033[20~", // kf9 (TB_CAP_F9)
"\033[21~", // kf10 (TB_CAP_F10)
"\033[23~", // kf11 (TB_CAP_F11)
"\033[24~", // kf12 (TB_CAP_F12)
"\033[2~", // kich1 (TB_CAP_INSERT)
"\033[3~", // kdch1 (TB_CAP_DELETE)
"\033[1~", // khome (TB_CAP_HOME)
"\033[4~", // kend (TB_CAP_END)
"\033[5~", // kpp (TB_CAP_PGUP)
"\033[6~", // knp (TB_CAP_PGDN)
"\033[A", // kcuu1 (TB_CAP_ARROW_UP)
"\033[B", // kcud1 (TB_CAP_ARROW_DOWN)
"\033[D", // kcub1 (TB_CAP_ARROW_LEFT)
"\033[C", // kcuf1 (TB_CAP_ARROW_RIGHT)
"\033\011", // kcbt (TB_CAP_BACK_TAB)
"", // smcup (TB_CAP_ENTER_CA)
"", // rmcup (TB_CAP_EXIT_CA)
"\033[?25h\033[?0c", // cnorm (TB_CAP_SHOW_CURSOR)
"\033[?25l\033[?1c", // civis (TB_CAP_HIDE_CURSOR)
"\033[H\033[J", // clear (TB_CAP_CLEAR_SCREEN)
"\033[m\017", // sgr0 (TB_CAP_SGR0)
"\033[4m", // smul (TB_CAP_UNDERLINE)
"\033[1m", // bold (TB_CAP_BOLD)
"\033[5m", // blink (TB_CAP_BLINK)
"", // sitm (TB_CAP_ITALIC)
"\033[7m", // rev (TB_CAP_REVERSE)
"", // smkx (TB_CAP_ENTER_KEYPAD)
"", // rmkx (TB_CAP_EXIT_KEYPAD)
"\033[2m", // dim (TB_CAP_DIM)
"", // invis (TB_CAP_INVISIBLE)
};
// screen
static const char *screen_caps[] = {
"\033OP", // kf1 (TB_CAP_F1)
"\033OQ", // kf2 (TB_CAP_F2)
"\033OR", // kf3 (TB_CAP_F3)
"\033OS", // kf4 (TB_CAP_F4)
"\033[15~", // kf5 (TB_CAP_F5)
"\033[17~", // kf6 (TB_CAP_F6)
"\033[18~", // kf7 (TB_CAP_F7)
"\033[19~", // kf8 (TB_CAP_F8)
"\033[20~", // kf9 (TB_CAP_F9)
"\033[21~", // kf10 (TB_CAP_F10)
"\033[23~", // kf11 (TB_CAP_F11)
"\033[24~", // kf12 (TB_CAP_F12)
"\033[2~", // kich1 (TB_CAP_INSERT)
"\033[3~", // kdch1 (TB_CAP_DELETE)
"\033[1~", // khome (TB_CAP_HOME)
"\033[4~", // kend (TB_CAP_END)
"\033[5~", // kpp (TB_CAP_PGUP)
"\033[6~", // knp (TB_CAP_PGDN)
"\033OA", // kcuu1 (TB_CAP_ARROW_UP)
"\033OB", // kcud1 (TB_CAP_ARROW_DOWN)
"\033OD", // kcub1 (TB_CAP_ARROW_LEFT)
"\033OC", // kcuf1 (TB_CAP_ARROW_RIGHT)
"\033[Z", // kcbt (TB_CAP_BACK_TAB)
"\033[?1049h", // smcup (TB_CAP_ENTER_CA)
"\033[?1049l", // rmcup (TB_CAP_EXIT_CA)
"\033[34h\033[?25h", // cnorm (TB_CAP_SHOW_CURSOR)
"\033[?25l", // civis (TB_CAP_HIDE_CURSOR)
"\033[H\033[J", // clear (TB_CAP_CLEAR_SCREEN)
"\033[m\017", // sgr0 (TB_CAP_SGR0)
"\033[4m", // smul (TB_CAP_UNDERLINE)
"\033[1m", // bold (TB_CAP_BOLD)
"\033[5m", // blink (TB_CAP_BLINK)
"", // sitm (TB_CAP_ITALIC)
"\033[7m", // rev (TB_CAP_REVERSE)
"\033[?1h\033=", // smkx (TB_CAP_ENTER_KEYPAD)
"\033[?1l\033>", // rmkx (TB_CAP_EXIT_KEYPAD)
"\033[2m", // dim (TB_CAP_DIM)
"", // invis (TB_CAP_INVISIBLE)
};
// rxvt-256color
static const char *rxvt_256color_caps[] = {
"\033[11~", // kf1 (TB_CAP_F1)
"\033[12~", // kf2 (TB_CAP_F2)
"\033[13~", // kf3 (TB_CAP_F3)
"\033[14~", // kf4 (TB_CAP_F4)
"\033[15~", // kf5 (TB_CAP_F5)
"\033[17~", // kf6 (TB_CAP_F6)
"\033[18~", // kf7 (TB_CAP_F7)
"\033[19~", // kf8 (TB_CAP_F8)
"\033[20~", // kf9 (TB_CAP_F9)
"\033[21~", // kf10 (TB_CAP_F10)
"\033[23~", // kf11 (TB_CAP_F11)
"\033[24~", // kf12 (TB_CAP_F12)
"\033[2~", // kich1 (TB_CAP_INSERT)
"\033[3~", // kdch1 (TB_CAP_DELETE)
"\033[7~", // khome (TB_CAP_HOME)
"\033[8~", // kend (TB_CAP_END)
"\033[5~", // kpp (TB_CAP_PGUP)
"\033[6~", // knp (TB_CAP_PGDN)
"\033[A", // kcuu1 (TB_CAP_ARROW_UP)
"\033[B", // kcud1 (TB_CAP_ARROW_DOWN)
"\033[D", // kcub1 (TB_CAP_ARROW_LEFT)
"\033[C", // kcuf1 (TB_CAP_ARROW_RIGHT)
"\033[Z", // kcbt (TB_CAP_BACK_TAB)
"\0337\033[?47h", // smcup (TB_CAP_ENTER_CA)
"\033[2J\033[?47l\0338", // rmcup (TB_CAP_EXIT_CA)
"\033[?25h", // cnorm (TB_CAP_SHOW_CURSOR)
"\033[?25l", // civis (TB_CAP_HIDE_CURSOR)
"\033[H\033[2J", // clear (TB_CAP_CLEAR_SCREEN)