3 This program is free software; you can redistribute it and/or
4 modify it under the terms of the GNU Lesser General Public
5 License (LGPL) as published by the Free Software Foundation.
7 Please refer to the COPYING file for more information.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 Copyright © 2004 Bruno T. C. de Oliveira
19 Copyright © 2006 Pierre Habouzit
32 #include <sys/ioctl.h>
33 #include <sys/types.h>
38 #elif defined(__FreeBSD__)
40 #elif defined(__OpenBSD__)
45 #ifndef NCURSES_ATTR_SHIFT
46 # define NCURSES_ATTR_SHIFT 8
49 #define IS_CONTROL(ch) !((ch) & 0xffffff60UL)
51 static int has_default, is_utf8;
55 C0_SOH, C0_STX, C0_ETX, C0_EOT, C0_ENQ, C0_ACK, C0_BEL,
56 C0_BS , C0_HT , C0_LF , C0_VT , C0_FF , C0_CR , C0_SO , C0_SI ,
57 C0_DLE, C0_DC1, C0_DC2, D0_DC3, C0_DC4, C0_NAK, C0_SYN, C0_ETB,
58 C0_CAN, C0_EM , C0_SUB, C0_ESC, C0_IS4, C0_IS3, C0_IS2, C0_IS1,
63 C1_41 , C1_BPH, C1_NBH, C1_44 , C1_NEL, C1_SSA, C1_ESA,
64 C1_HTS, C1_HTJ, C1_VTS, C1_PLD, C1_PLU, C1_RI , C1_SS2, C1_SS3,
65 C1_DCS, C1_PU1, C1_PU2, C1_STS, C1_CCH, C1_MW , C1_SPA, C1_EPA,
66 C1_SOS, C1_59 , C1_SCI, C1_CSI, CS_ST , C1_OSC, C1_PM , C1_APC,
71 CSI_CUU, CSI_CUD, CSI_CUF, CSI_CUB, CSI_CNL, CSI_CPL, CSI_CHA,
72 CSI_CUP, CSI_CHT, CSI_ED , CSI_EL , CSI_IL , CSI_DL , CSI_EF , CSI_EA ,
73 CSI_DCH, CSI_SEE, CSI_CPR, CSI_SU , CSI_SD , CSI_NP , CSI_PP , CSI_CTC,
74 CSI_ECH, CSI_CVT, CSI_CBT, CSI_SRS, CSI_PTX, CSI_SDS, CSI_SIMD, CSI_5F,
75 CSI_HPA, CSI_HPR, CSI_REP, CSI_DA , CSI_VPA, CSI_VPR, CSI_HVP, CSI_TBC,
76 CSI_SM , CSI_MC , CSI_HPB, CSI_VPB, CSI_RM , CSI_SGR, CSI_DSR, CSI_DAQ,
77 CSI_70 , CSI_71 , CSI_72 , CSI_73 , CSI_74 , CSI_75 , CSI_76 , CSI_77 ,
78 CSI_78 , CSI_79 , CSI_7A , CSI_7B , CSI_7C , CSI_7D , CSI_7E , CSI_7F
86 unsigned seen_input : 1;
89 unsigned graphmode : 1;
96 struct t_row_t *lines;
97 struct t_row_t *scroll_top;
98 struct t_row_t *scroll_bot;
101 struct t_row_t *curs_row;
102 int curs_col, curs_srow, curs_scol;
104 /* buffers and parsing state */
111 typedef struct t_row_t {
117 static char const * const keytable[KEY_MAX+1] = {
121 [KEY_RIGHT] = "\e[C",
123 [KEY_BACKSPACE] = "\177",
124 [KEY_HOME] = "\e[1~",
128 [KEY_PPAGE] = "\e[5~",
129 [KEY_NPAGE] = "\e[6~",
130 [KEY_SUSPEND] = "\x1A", /* Ctrl+Z gets mapped to this */
131 [KEY_F(1)] = "\e[11~",
132 [KEY_F(2)] = "\e[12~",
133 [KEY_F(3)] = "\e[13~",
134 [KEY_F(4)] = "\e[14~",
135 [KEY_F(5)] = "\e[15~",
136 [KEY_F(6)] = "\e[17~",
137 [KEY_F(7)] = "\e[18~",
138 [KEY_F(8)] = "\e[19~",
139 [KEY_F(9)] = "\e[20~",
140 [KEY_F(10)] = "\e[21~",
141 [KEY_F(11)] = "\e[23~",
142 [KEY_F(12)] = "\e[24~",
143 [KEY_F(13)] = "\e[25~",
144 [KEY_F(14)] = "\e[26~",
145 [KEY_F(15)] = "\e[28~",
146 [KEY_F(16)] = "\e[29~",
147 [KEY_F(17)] = "\e[31~",
148 [KEY_F(18)] = "\e[32~",
149 [KEY_F(19)] = "\e[33~",
150 [KEY_F(20)] = "\e[34~",
153 static void t_row_set(t_row_t *row, int start, int len, uint16_t attr)
156 wmemset(row->text + start, 0, len);
157 for (int i = start; i < len + start; i++) {
162 static void t_row_roll(t_row_t *start, t_row_t *end, int count)
171 t_row_t *buf = alloca(count * sizeof(t_row_t));
173 memcpy(buf, start, count * sizeof(t_row_t));
174 memmove(start, start + count, (n - count) * sizeof(t_row_t));
175 memcpy(end - count, buf, count * sizeof(t_row_t));
176 for (t_row_t *row = start; row < end; row++) {
182 static void clamp_cursor_to_bounds(madtty_t *t)
184 if (t->curs_row < t->lines) {
185 t->curs_row = t->lines;
187 if (t->curs_row >= t->lines + t->rows) {
188 t->curs_row = t->lines + t->rows - 1;
191 if (t->curs_col < 0) {
194 if (t->curs_col >= t->cols) {
195 t->curs_col = t->cols - 1;
199 static void cursor_line_down(madtty_t *t)
202 if (t->curs_row < t->scroll_bot)
205 t->curs_row = t->scroll_bot - 1;
206 t_row_roll(t->scroll_top, t->scroll_bot, 1);
207 t_row_set(t->curs_row, 0, t->cols, 0);
210 __attribute__((const))
211 static uint16_t build_attrs(unsigned curattrs)
213 return ((curattrs & ~A_COLOR) | COLOR_PAIR(curattrs & 0xff))
214 >> NCURSES_ATTR_SHIFT;
217 static void new_escape_sequence(madtty_t *t)
224 static void cancel_escape_sequence(madtty_t *t)
231 static bool is_valid_csi_ender(int c)
233 return (c >= 'a' && c <= 'z')
234 || (c >= 'A' && c <= 'Z')
235 || (c == '@' || c == '`');
238 /* interprets a 'set attribute' (SGR) CSI escape sequence */
239 static void interpret_csi_SGR(madtty_t *t, int param[], int pcount)
244 /* special case: reset attributes */
245 t->curattrs = A_NORMAL;
249 for (i = 0; i < pcount; i++) {
251 #define CASE(x, op) case x: op; break
252 CASE(0, t->curattrs = A_NORMAL);
253 CASE(1, t->curattrs |= A_BOLD);
254 CASE(4, t->curattrs |= A_UNDERLINE);
255 CASE(5, t->curattrs |= A_BLINK);
256 CASE(6, t->curattrs |= A_BLINK);
257 CASE(7, t->curattrs |= A_REVERSE);
258 CASE(8, t->curattrs |= A_INVIS);
259 CASE(22, t->curattrs &= ~A_BOLD);
260 CASE(24, t->curattrs &= ~A_UNDERLINE);
261 CASE(25, t->curattrs &= ~A_BLINK);
262 CASE(27, t->curattrs &= ~A_REVERSE);
263 CASE(28, t->curattrs &= ~A_INVIS);
265 case 30 ... 37: /* fg */
267 t->curattrs &= ~0xf0;
268 t->curattrs |= (param[i] + 1 - 30) << 4;
271 t->curattrs |= (7 - (param[i] - 30)) << 3;
276 t->curattrs &= has_default ? ~0xf0 : ~070;
279 case 40 ... 47: /* bg */
281 t->curattrs &= ~0x0f;
282 t->curattrs |= (param[i] + 1 - 40);
285 t->curattrs |= (param[i] - 40);
290 t->curattrs &= has_default ? ~0x0f : ~007;
299 /* interprets an 'erase display' (ED) escape sequence */
300 static void interpret_csi_ED(madtty_t *t, int param[], int pcount)
302 t_row_t *row, *start, *end;
303 attr_t attr = build_attrs(t->curattrs);
306 if (pcount && param[0] == 2) {
308 end = t->lines + t->rows;
310 if (pcount && param[0] == 1) {
313 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
315 t_row_set(t->curs_row, t->curs_col,
316 t->cols - t->curs_col, attr);
317 start = t->curs_row + 1;
318 end = t->lines + t->rows;
321 for (row = start; row < end; row++) {
322 t_row_set(row, 0, t->cols, attr);
326 /* interprets a 'move cursor' (CUP) escape sequence */
327 static void interpret_csi_CUP(madtty_t *t, int param[], int pcount)
331 t->curs_row = t->lines;
336 return; /* malformed */
339 t->curs_row = t->lines + param[0] - 1;
340 t->curs_col = param[1] - 1;
342 clamp_cursor_to_bounds(t);
345 /* Interpret the 'relative mode' sequences: CUU, CUD, CUF, CUB, CNL,
346 * CPL, CHA, HPR, VPA, VPR, HPA */
348 interpret_csi_C(madtty_t *t, char verb, int param[], int pcount)
350 int n = (pcount && param[0] > 0) ? param[0] : 1;
353 case 'A': t->curs_row -= n; break;
354 case 'B': case 'e': t->curs_row += n; break;
355 case 'C': case 'a': t->curs_col += n; break;
356 case 'D': t->curs_col -= n; break;
357 case 'E': t->curs_row += n; t->curs_col = 0; break;
358 case 'F': t->curs_row -= n; t->curs_col = 0; break;
359 case 'G': case '`': t->curs_col = param[0] - 1; break;
360 case 'd': t->curs_row = t->lines + param[0] - 1; break;
363 clamp_cursor_to_bounds(t);
366 /* Interpret the 'erase line' escape sequence */
367 static void interpret_csi_EL(madtty_t *t, int param[], int pcount)
369 attr_t attr = build_attrs(t->curattrs);
371 switch (pcount ? param[0] : 0) {
373 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
376 t_row_set(t->curs_row, 0, t->cols, attr);
379 t_row_set(t->curs_row, t->curs_col, t->cols - t->curs_col,
385 /* Interpret the 'insert blanks' sequence (ICH) */
386 static void interpret_csi_ICH(madtty_t *t, int param[], int pcount)
388 t_row_t *row = t->curs_row;
389 int n = (pcount && param[0] > 0) ? param[0] : 1;
392 if (t->curs_col + n > t->cols) {
393 n = t->cols - t->curs_col;
396 for (i = t->cols - 1; i >= t->curs_col + n; i--) {
397 row->text[i] = row->text[i - n];
398 row->attr[i] = row->attr[i - n];
401 t_row_set(row, t->curs_col, n, build_attrs(t->curattrs));
404 /* Interpret the 'delete chars' sequence (DCH) */
405 static void interpret_csi_DCH(madtty_t *t, int param[], int pcount)
407 t_row_t *row = t->curs_row;
408 int n = (pcount && param[0] > 0) ? param[0] : 1;
411 if (t->curs_col + n > t->cols) {
412 n = t->cols - t->curs_col;
415 for (i = t->curs_col; i < t->cols - n; i++) {
416 row->text[i] = row->text[i + n];
417 row->attr[i] = row->attr[i + n];
420 t_row_set(row, t->cols - n, n, build_attrs(t->curattrs));
423 /* Interpret a 'scroll reverse' (SR) */
424 static void interpret_csi_SR(madtty_t *t)
426 t_row_roll(t->scroll_top, t->scroll_bot, -1);
427 t_row_set(t->scroll_top, 0, t->cols, build_attrs(t->curattrs));
430 /* Interpret an 'insert line' sequence (IL) */
431 static void interpret_csi_IL(madtty_t *t, int param[], int pcount)
433 int n = (pcount && param[0] > 0) ? param[0] : 1;
435 if (t->curs_row + n >= t->scroll_bot) {
436 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
437 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
440 t_row_roll(t->curs_row, t->scroll_bot, -n);
441 for (t_row_t *row = t->curs_row; row < t->curs_row + n; row++) {
442 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
447 /* Interpret a 'delete line' sequence (DL) */
448 static void interpret_csi_DL(madtty_t *t, int param[], int pcount)
450 int n = (pcount && param[0] > 0) ? param[0] : 1;
452 if (t->curs_row + n >= t->scroll_bot) {
453 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
454 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
457 t_row_roll(t->curs_row, t->scroll_bot, n);
458 for (t_row_t *row = t->scroll_bot - n; row < t->scroll_bot; row++) {
459 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
464 /* Interpret an 'erase characters' (ECH) sequence */
465 static void interpret_csi_ECH(madtty_t *t, int param[], int pcount)
467 int n = (pcount && param[0] > 0) ? param[0] : 1;
469 if (t->curs_col + n < t->cols) {
470 n = t->cols - t->curs_col;
472 t_row_set(t->curs_row, t->curs_col, n, build_attrs(t->curattrs));
475 /* Interpret a 'set scrolling region' (DECSTBM) sequence */
476 static void interpret_csi_DECSTBM(madtty_t *t, int param[], int pcount)
478 int new_top, new_bot;
482 t->scroll_top = t->lines;
483 t->scroll_bot = t->lines + t->rows;
486 return; /* malformed */
489 new_top = param[0] - 1;
492 /* clamp to bounds */
495 if (new_top >= t->rows)
496 new_top = t->rows - 1;
499 if (new_bot >= t->rows)
502 /* check for range validity */
503 if (new_top < new_bot) {
504 t->scroll_top = t->lines + new_top;
505 t->scroll_bot = t->lines + new_bot;
511 static void es_interpret_csi(madtty_t *t)
513 static int csiparam[BUFSIZ];
515 const char *p = t->ebuf + 1;
516 char verb = t->ebuf[t->elen - 1];
518 p += t->ebuf[1] == '?'; /* CSI private mode */
520 /* parse numeric parameters */
521 while (isdigit((unsigned char)*p) || *p == ';') {
523 if (param_count >= (int)sizeof(csiparam))
524 return; /* too long! */
525 csiparam[param_count++] = 0;
527 if (param_count == 0) csiparam[param_count++] = 0;
528 csiparam[param_count - 1] *= 10;
529 csiparam[param_count - 1] += *p - '0';
535 if (t->ebuf[1] == '?') {
538 if (csiparam[0] == 25)
543 if (csiparam[0] == 25)
549 /* delegate handling depending on command character (verb) */
552 if (param_count == 1 && csiparam[0] == 4) /* insert mode */
556 if (param_count == 1 && csiparam[0] == 4) /* replace mode */
559 case 'm': /* it's a 'set attribute' sequence */
560 interpret_csi_SGR(t, csiparam, param_count); break;
561 case 'J': /* it's an 'erase display' sequence */
562 interpret_csi_ED(t, csiparam, param_count); break;
563 case 'H': case 'f': /* it's a 'move cursor' sequence */
564 interpret_csi_CUP(t, csiparam, param_count); break;
565 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
566 case 'e': case 'a': case 'd': case '`':
567 /* it is a 'relative move' */
568 interpret_csi_C(t, verb, csiparam, param_count); break;
569 case 'K': /* erase line */
570 interpret_csi_EL(t, csiparam, param_count); break;
571 case '@': /* insert characters */
572 interpret_csi_ICH(t, csiparam, param_count); break;
573 case 'P': /* delete characters */
574 interpret_csi_DCH(t, csiparam, param_count); break;
575 case 'L': /* insert lines */
576 interpret_csi_IL(t, csiparam, param_count); break;
577 case 'M': /* delete lines */
578 interpret_csi_DL(t, csiparam, param_count); break;
579 case 'X': /* erase chars */
580 interpret_csi_ECH(t, csiparam, param_count); break;
581 case 'r': /* set scrolling region */
582 interpret_csi_DECSTBM(t, csiparam, param_count); break;
583 case 's': /* save cursor location */
584 t->curs_srow = t->curs_row - t->lines;
585 t->curs_scol = t->curs_col;
587 case 'u': /* restore cursor location */
588 t->curs_row = t->lines + t->curs_srow;
589 t->curs_col = t->curs_scol;
590 clamp_cursor_to_bounds(t);
597 static void try_interpret_escape_seq(madtty_t *t)
599 char lastchar = t->ebuf[t->elen-1];
607 cancel_escape_sequence(t);
616 case ']': /* xterm thing */
617 if (lastchar == '\a')
625 if (is_valid_csi_ender(lastchar)) {
627 cancel_escape_sequence(t);
633 if (t->elen + 1 >= (int)sizeof(t->ebuf)) {
636 fprintf(stderr, "cancelled: \\033");
637 for (int i = 0; i < (int)t->elen; i++) {
638 if (isprint(t->ebuf[i])) {
639 fputc(t->ebuf[i], stderr);
641 fprintf(stderr, "\\%03o", t->ebuf[i]);
646 cancel_escape_sequence(t);
650 static void madtty_process_nonprinting(madtty_t *t, wchar_t wc)
654 new_escape_sequence(t);
658 /* do nothing for now... maybe a visual bell would be nice? */
666 case C0_HT: /* tab */
667 t->curs_col = (t->curs_col + 8) & ~7;
668 if (t->curs_col >= t->cols)
669 t->curs_col = t->cols - 1;
682 case C0_SO: /* shift out - acs */
685 case C0_SI: /* shift in - acs */
686 t->graphmode = false;
691 static void is_utf8_locale(void)
693 const char *cset = nl_langinfo(CODESET) ?: "ANSI_X3.4-1968";
694 is_utf8 = !strcmp(cset, "UTF-8");
697 // vt100 special graphics and line drawing
698 // 5f-7e standard vt100
699 // 40-5e rxvt extension for extra curses acs chars
700 static uint16_t const vt100_utf8[62] = { // 41 .. 7e
701 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
702 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
703 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
704 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
705 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
706 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
707 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
708 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
711 static uint32_t vt100[62];
713 void madtty_init_vt100_graphics(void)
715 vt100['l' - 0x41] = ACS_ULCORNER;
716 vt100['m' - 0x41] = ACS_LLCORNER;
717 vt100['k' - 0x41] = ACS_URCORNER;
718 vt100['j' - 0x41] = ACS_LRCORNER;
719 vt100['u' - 0x41] = ACS_RTEE;
720 vt100['t' - 0x41] = ACS_LTEE;
721 vt100['v' - 0x41] = ACS_TTEE;
722 vt100['w' - 0x41] = ACS_BTEE;
723 vt100['q' - 0x41] = ACS_HLINE;
724 vt100['x' - 0x41] = ACS_VLINE;
725 vt100['n' - 0x41] = ACS_PLUS;
726 vt100['o' - 0x41] = ACS_S1;
727 vt100['s' - 0x41] = ACS_S9;
728 vt100['`' - 0x41] = ACS_DIAMOND;
729 vt100['a' - 0x41] = ACS_CKBOARD;
730 vt100['f' - 0x41] = ACS_DEGREE;
731 vt100['g' - 0x41] = ACS_PLMINUS;
732 vt100['~' - 0x41] = ACS_BULLET;
733 vt100[',' - 0x41] = ACS_LARROW;
734 vt100['+' - 0x41] = ACS_RARROW;
735 vt100['.' - 0x41] = ACS_DARROW;
736 vt100['-' - 0x41] = ACS_UARROW;
737 vt100['h' - 0x41] = ACS_BOARD;
738 vt100['i' - 0x41] = ACS_LANTERN;
739 vt100['0' - 0x41] = ACS_BLOCK;
740 /* these defaults were invented for ncurses */
741 vt100['p' - 0x41] = ACS_S3;
742 vt100['r' - 0x41] = ACS_S7;
743 vt100['y' - 0x41] = ACS_LEQUAL;
744 vt100['z' - 0x41] = ACS_GEQUAL;
745 vt100['{' - 0x41] = ACS_PI;
746 vt100['|' - 0x41] = ACS_NEQUAL;
747 vt100['}' - 0x41] = ACS_STERLING;
751 static void madtty_putc(madtty_t *t, wchar_t wc)
755 if (!t->seen_input) {
757 kill(-t->childpid, SIGWINCH);
761 assert (t->elen + 1 < (int)sizeof(t->ebuf));
762 t->ebuf[t->elen] = wc;
763 t->ebuf[++t->elen] = '\0';
764 try_interpret_escape_seq(t);
765 } else if (IS_CONTROL(wc)) {
766 madtty_process_nonprinting(t, wc);
771 if (wc >= 0x41 && wc <= 0x7e) {
772 wchar_t gc = is_utf8 ? vt100_utf8[wc - 0x41] : vt100[wc - 0x41];
778 width = wcwidth(wc) ?: 1;
781 if (width == 2 && t->curs_col == t->cols - 1) {
784 tmp->text[t->curs_col] = 0;
785 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
789 if (t->curs_col >= t->cols) {
798 wmemmove(tmp->text + t->curs_col + width, tmp->text + t->curs_col,
799 (t->cols - t->curs_col - width));
800 memmove(tmp->attr + t->curs_col + width, tmp->attr + t->curs_col,
801 (t->cols - t->curs_col - width) * sizeof(tmp->attr[0]));
804 tmp->text[t->curs_col] = wc;
805 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
808 tmp->text[t->curs_col] = 0;
809 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
815 int madtty_process(madtty_t *t)
824 res = read(t->pty, t->rbuf + t->rlen, sizeof(t->rbuf) - t->rlen);
829 while (pos < t->rlen) {
833 len = (ssize_t)mbrtowc(&wc, t->rbuf + pos, t->rlen - pos, &t->ps);
836 memmove(t->rbuf, t->rbuf + pos, t->rlen);
845 pos += len ? len : 1;
850 memmove(t->rbuf, t->rbuf + pos, t->rlen);
854 madtty_t *madtty_create(int rows, int cols)
859 if (rows <= 0 || cols <= 0)
862 t = (madtty_t*)calloc(sizeof(madtty_t), 1);
866 /* record dimensions */
870 /* default mode is replace */
873 /* create the cell matrix */
874 t->lines = (t_row_t*)calloc(sizeof(t_row_t), t->rows);
875 for (i = 0; i < t->rows; i++) {
876 t->lines[i].text = (wchar_t *)calloc(sizeof(wchar_t), t->cols);
877 t->lines[i].attr = (uint16_t *)calloc(sizeof(uint16_t), t->cols);
880 t->pty = -1; /* no pty for now */
882 /* initialization of other public fields */
883 t->curs_row = t->lines;
885 t->curattrs = A_NORMAL; /* white text over black background */
887 /* initial scrolling area is the whole window */
888 t->scroll_top = t->lines;
889 t->scroll_bot = t->lines + t->rows;
894 void madtty_resize(madtty_t *t, int rows, int cols)
896 struct winsize ws = { .ws_row = rows, .ws_col = cols };
897 t_row_t *lines = t->lines;
899 if (rows <= 0 || cols <= 0)
902 if (t->rows != rows) {
903 while (t->rows > rows) {
904 free(lines[t->rows - 1].text);
905 free(lines[t->rows - 1].attr);
909 lines = realloc(lines, sizeof(t_row_t) * rows);
912 if (t->cols != cols) {
913 for (int row = 0; row < t->rows; row++) {
914 lines[row].text = realloc(lines[row].text, sizeof(wchar_t) * cols);
915 lines[row].attr = realloc(lines[row].attr, sizeof(uint16_t) * cols);
917 t_row_set(lines + row, t->cols, cols - t->cols, 0);
919 lines[row].dirty = true;
924 while (t->rows < rows) {
925 lines[t->rows].text = (wchar_t *)calloc(sizeof(wchar_t), cols);
926 lines[t->rows].attr = (uint16_t *)calloc(sizeof(uint16_t), cols);
927 t_row_set(lines + t->rows, 0, t->cols, 0);
931 t->curs_row += lines - t->lines;
932 t->scroll_top = lines;
933 t->scroll_bot = lines + rows;
935 clamp_cursor_to_bounds(t);
936 ioctl(t->pty, TIOCSWINSZ, &ws);
937 kill(-t->childpid, SIGWINCH);
940 void madtty_destroy(madtty_t *t)
946 for (i = 0; i < t->rows; i++) {
947 free(t->lines[i].text);
948 free(t->lines[i].attr);
954 void madtty_draw(madtty_t *t, WINDOW *win, int srow, int scol)
957 for (int i = 0; i < t->rows; i++) {
958 t_row_t *row = t->lines + i;
964 wmove(win, srow + i, scol);
965 for (int j = 0; j < t->cols; j++) {
966 if (!j || row->attr[j] != row->attr[j - 1])
967 wattrset(win, (attr_t)row->attr[j] << NCURSES_ATTR_SHIFT);
968 if (row->text[j] >= 128) {
969 char buf[MB_CUR_MAX + 1];
972 len = wcrtomb(buf, row->text[j], NULL);
973 waddnstr(win, buf, len);
974 if (wcwidth(row->text[j]) > 1)
977 waddch(win, row->text[j] > ' ' ? row->text[j] : ' ');
983 wmove(win, srow + t->curs_row - t->lines, scol + t->curs_col);
984 curs_set(!t->curshid);
987 /******************************************************/
989 pid_t madtty_forkpty(madtty_t *t, const char *p, const char *argv[], int *pty)
996 ws.ws_xpixel = ws.ws_ypixel = 0;
998 pid = forkpty(&t->pty, NULL, NULL, &ws);
1004 setenv("TERM", "rxvt", 1);
1005 execv(p, (char *const*)argv);
1006 fprintf(stderr, "\nexecv() failed.\nCommand: '%s'\n", argv[0]);
1012 return t->childpid = pid;
1015 int madtty_getpty(madtty_t *t)
1020 void madtty_keypress(madtty_t *t, int keycode)
1022 char c = (char)keycode;
1026 if (keycode >= 0 && keycode < KEY_MAX && keytable[keycode]) {
1027 buf = keytable[keycode];
1028 len = strlen(keytable[keycode]);
1035 int res = write(t->pty, buf, len);
1036 if (res < 0 && errno != EAGAIN && errno != EINTR)
1044 void madtty_init_colors(void)
1046 if (COLOR_PAIRS > 64) {
1047 use_default_colors();
1050 for (int bg = -1; bg < 8; bg++) {
1051 for (int fg = -1; fg < 8; fg++) {
1052 init_pair((fg + 1) * 16 + bg + 1, fg, bg);
1056 int use_default = use_default_colors() == OK;
1057 for (int bg = 0; bg < 8; bg++) {
1058 for (int fg = 0; fg < 8; fg++) {
1060 init_pair((7 - fg) * 8 + bg,
1061 fg == COLOR_WHITE ? -1 : fg,
1062 bg == COLOR_BLACK ? -1 : bg);
1064 init_pair((7 - fg) * 8 + bg, fg, bg);
1071 int madtty_color_pair(int fg, int bg)
1078 return COLOR_PAIR((fg + 1) * 16 + bg + 1);
1084 return COLOR_PAIR((7 - fg) * 8 + bg);