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
31 #include <sys/ioctl.h>
32 #include <sys/types.h>
37 #elif defined(__FreeBSD__)
39 #elif defined(__OpenBSD__)
44 #ifndef NCURSES_ATTR_SHIFT
45 # define NCURSES_ATTR_SHIFT 8
48 #define IS_CONTROL(ch) !((ch) & 0xffffff60UL)
50 static int has_default = 0;
54 C0_SOH, C0_STX, C0_ETX, C0_EOT, C0_ENQ, C0_ACK, C0_BEL,
55 C0_BS , C0_HT , C0_LF , C0_VT , C0_FF , C0_CR , C0_SO , C0_SI ,
56 C0_DLE, C0_DC1, C0_DC2, D0_DC3, C0_DC4, C0_NAK, C0_SYN, C0_ETB,
57 C0_CAN, C0_EM , C0_SUB, C0_ESC, C0_IS4, C0_IS3, C0_IS2, C0_IS1,
62 C1_41 , C1_BPH, C1_NBH, C1_44 , C1_NEL, C1_SSA, C1_ESA,
63 C1_HTS, C1_HTJ, C1_VTS, C1_PLD, C1_PLU, C1_RI , C1_SS2, C1_SS3,
64 C1_DCS, C1_PU1, C1_PU2, C1_STS, C1_CCH, C1_MW , C1_SPA, C1_EPA,
65 C1_SOS, C1_59 , C1_SCI, C1_CSI, CS_ST , C1_OSC, C1_PM , C1_APC,
70 CSI_CUU, CSI_CUD, CSI_CUF, CSI_CUB, CSI_CNL, CSI_CPL, CSI_CHA,
71 CSI_CUP, CSI_CHT, CSI_ED , CSI_EL , CSI_IL , CSI_DL , CSI_EF , CSI_EA ,
72 CSI_DCH, CSI_SEE, CSI_CPR, CSI_SU , CSI_SD , CSI_NP , CSI_PP , CSI_CTC,
73 CSI_ECH, CSI_CVT, CSI_CBT, CSI_SRS, CSI_PTX, CSI_SDS, CSI_SIMD, CSI_5F,
74 CSI_HPA, CSI_HPR, CSI_REP, CSI_DA , CSI_VPA, CSI_VPR, CSI_HVP, CSI_TBC,
75 CSI_SM , CSI_MC , CSI_HPB, CSI_VPB, CSI_RM , CSI_SGR, CSI_DSR, CSI_DAQ,
76 CSI_70 , CSI_71 , CSI_72 , CSI_73 , CSI_74 , CSI_75 , CSI_76 , CSI_77 ,
77 CSI_78 , CSI_79 , CSI_7A , CSI_7B , CSI_7C , CSI_7D , CSI_7E , CSI_7F
85 unsigned seen_input : 1;
88 unsigned graphmode : 1;
95 struct t_row_t *lines;
96 struct t_row_t *scroll_top;
97 struct t_row_t *scroll_bot;
100 struct t_row_t *curs_row;
101 int curs_col, curs_srow, curs_scol;
103 /* buffers and parsing state */
110 typedef struct t_row_t {
116 static char const * const keytable[KEY_MAX+1] = {
120 [KEY_RIGHT] = "\e[C",
122 [KEY_BACKSPACE] = "\177",
123 [KEY_HOME] = "\e[1~",
127 [KEY_PPAGE] = "\e[5~",
128 [KEY_NPAGE] = "\e[6~",
129 [KEY_SUSPEND] = "\x1A", /* Ctrl+Z gets mapped to this */
130 [KEY_F(1)] = "\e[11~",
131 [KEY_F(2)] = "\e[12~",
132 [KEY_F(3)] = "\e[13~",
133 [KEY_F(4)] = "\e[14~",
134 [KEY_F(5)] = "\e[15~",
135 [KEY_F(6)] = "\e[17~",
136 [KEY_F(7)] = "\e[18~",
137 [KEY_F(8)] = "\e[19~",
138 [KEY_F(9)] = "\e[20~",
139 [KEY_F(10)] = "\e[21~",
140 [KEY_F(11)] = "\e[23~",
141 [KEY_F(12)] = "\e[24~",
142 [KEY_F(13)] = "\e[25~",
143 [KEY_F(14)] = "\e[26~",
144 [KEY_F(15)] = "\e[28~",
145 [KEY_F(16)] = "\e[29~",
146 [KEY_F(17)] = "\e[31~",
147 [KEY_F(18)] = "\e[32~",
148 [KEY_F(19)] = "\e[33~",
149 [KEY_F(20)] = "\e[34~",
152 static void t_row_set(t_row_t *row, int start, int len, uint16_t attr)
155 wmemset(row->text + start, 0, len);
156 for (int i = start; i < len + start; i++) {
161 static void t_row_roll(t_row_t *start, t_row_t *end, int count)
170 t_row_t *buf = alloca(count * sizeof(t_row_t));
172 memcpy(buf, start, count * sizeof(t_row_t));
173 memmove(start, start + count, (n - count) * sizeof(t_row_t));
174 memcpy(end - count, buf, count * sizeof(t_row_t));
175 for (t_row_t *row = start; row < end; row++) {
181 static void clamp_cursor_to_bounds(madtty_t *t)
183 if (t->curs_row < t->lines) {
184 t->curs_row = t->lines;
186 if (t->curs_row >= t->lines + t->rows) {
187 t->curs_row = t->lines + t->rows - 1;
190 if (t->curs_col < 0) {
193 if (t->curs_col >= t->cols) {
194 t->curs_col = t->cols - 1;
198 static void cursor_line_down(madtty_t *t)
201 if (t->curs_row < t->scroll_bot)
204 t->curs_row = t->scroll_bot - 1;
205 t_row_roll(t->scroll_top, t->scroll_bot, 1);
206 t_row_set(t->curs_row, 0, t->cols, 0);
209 __attribute__((const))
210 static uint16_t build_attrs(unsigned curattrs)
212 return ((curattrs & ~A_COLOR) | COLOR_PAIR(curattrs & 0xff))
213 >> NCURSES_ATTR_SHIFT;
216 static void new_escape_sequence(madtty_t *t)
223 static void cancel_escape_sequence(madtty_t *t)
230 static bool is_valid_csi_ender(int c)
232 return (c >= 'a' && c <= 'z')
233 || (c >= 'A' && c <= 'Z')
234 || (c == '@' || c == '`');
237 /* interprets a 'set attribute' (SGR) CSI escape sequence */
238 static void interpret_csi_SGR(madtty_t *t, int param[], int pcount)
243 /* special case: reset attributes */
244 t->curattrs = A_NORMAL;
248 for (i = 0; i < pcount; i++) {
250 #define CASE(x, op) case x: op; break
251 CASE(0, t->curattrs = A_NORMAL);
252 CASE(1, t->curattrs |= A_BOLD);
253 CASE(4, t->curattrs |= A_UNDERLINE);
254 CASE(5, t->curattrs |= A_BLINK);
255 CASE(6, t->curattrs |= A_BLINK);
256 CASE(7, t->curattrs |= A_REVERSE);
257 CASE(8, t->curattrs |= A_INVIS);
258 CASE(22, t->curattrs &= ~A_BOLD);
259 CASE(24, t->curattrs &= ~A_UNDERLINE);
260 CASE(25, t->curattrs &= ~A_BLINK);
261 CASE(27, t->curattrs &= ~A_REVERSE);
262 CASE(28, t->curattrs &= ~A_INVIS);
264 case 30 ... 37: /* fg */
266 t->curattrs &= ~0xf0;
267 t->curattrs |= (param[i] + 1 - 30) << 4;
270 t->curattrs |= (7 - (param[i] - 30)) << 3;
275 t->curattrs &= has_default ? ~0xf0 : ~070;
278 case 40 ... 47: /* bg */
280 t->curattrs &= ~0x0f;
281 t->curattrs |= (param[i] + 1 - 40);
284 t->curattrs |= (param[i] - 40);
289 t->curattrs &= has_default ? ~0x0f : ~007;
298 /* interprets an 'erase display' (ED) escape sequence */
299 static void interpret_csi_ED(madtty_t *t, int param[], int pcount)
301 t_row_t *row, *start, *end;
302 attr_t attr = build_attrs(t->curattrs);
305 if (pcount && param[0] == 2) {
307 end = t->lines + t->rows;
309 if (pcount && param[0] == 1) {
312 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
314 t_row_set(t->curs_row, t->curs_col,
315 t->cols - t->curs_col, attr);
316 start = t->curs_row + 1;
317 end = t->lines + t->rows;
320 for (row = start; row < end; row++) {
321 t_row_set(row, 0, t->cols, attr);
325 /* interprets a 'move cursor' (CUP) escape sequence */
326 static void interpret_csi_CUP(madtty_t *t, int param[], int pcount)
330 t->curs_row = t->lines;
335 return; /* malformed */
338 t->curs_row = t->lines + param[0] - 1;
339 t->curs_col = param[1] - 1;
341 clamp_cursor_to_bounds(t);
344 /* Interpret the 'relative mode' sequences: CUU, CUD, CUF, CUB, CNL,
345 * CPL, CHA, HPR, VPA, VPR, HPA */
347 interpret_csi_C(madtty_t *t, char verb, int param[], int pcount)
349 int n = (pcount && param[0] > 0) ? param[0] : 1;
352 case 'A': t->curs_row -= n; break;
353 case 'B': case 'e': t->curs_row += n; break;
354 case 'C': case 'a': t->curs_col += n; break;
355 case 'D': t->curs_col -= n; break;
356 case 'E': t->curs_row += n; t->curs_col = 0; break;
357 case 'F': t->curs_row -= n; t->curs_col = 0; break;
358 case 'G': case '`': t->curs_col = param[0] - 1; break;
359 case 'd': t->curs_row = t->lines + param[0] - 1; break;
362 clamp_cursor_to_bounds(t);
365 /* Interpret the 'erase line' escape sequence */
366 static void interpret_csi_EL(madtty_t *t, int param[], int pcount)
368 attr_t attr = build_attrs(t->curattrs);
370 switch (pcount ? param[0] : 0) {
372 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
375 t_row_set(t->curs_row, 0, t->cols, attr);
378 t_row_set(t->curs_row, t->curs_col, t->cols - t->curs_col,
384 /* Interpret the 'insert blanks' sequence (ICH) */
385 static void interpret_csi_ICH(madtty_t *t, int param[], int pcount)
387 t_row_t *row = t->curs_row;
388 int n = (pcount && param[0] > 0) ? param[0] : 1;
391 if (t->curs_col + n > t->cols) {
392 n = t->cols - t->curs_col;
395 for (i = t->cols - 1; i >= t->curs_col + n; i--) {
396 row->text[i] = row->text[i - n];
397 row->attr[i] = row->attr[i - n];
400 t_row_set(row, t->curs_col, n, build_attrs(t->curattrs));
403 /* Interpret the 'delete chars' sequence (DCH) */
404 static void interpret_csi_DCH(madtty_t *t, int param[], int pcount)
406 t_row_t *row = t->curs_row;
407 int n = (pcount && param[0] > 0) ? param[0] : 1;
410 if (t->curs_col + n > t->cols) {
411 n = t->cols - t->curs_col;
414 for (i = t->curs_col; i < t->cols - n; i++) {
415 row->text[i] = row->text[i + n];
416 row->attr[i] = row->attr[i + n];
419 t_row_set(row, t->cols - n, n, build_attrs(t->curattrs));
422 /* Interpret a 'scroll reverse' (SR) */
423 static void interpret_csi_SR(madtty_t *t)
425 t_row_roll(t->scroll_top, t->scroll_bot, -1);
426 t_row_set(t->scroll_top, 0, t->cols, build_attrs(t->curattrs));
429 /* Interpret an 'insert line' sequence (IL) */
430 static void interpret_csi_IL(madtty_t *t, int param[], int pcount)
432 int n = (pcount && param[0] > 0) ? param[0] : 1;
434 if (t->curs_row + n >= t->scroll_bot) {
435 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
436 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
439 t_row_roll(t->curs_row, t->scroll_bot, -n);
440 for (t_row_t *row = t->curs_row; row < t->curs_row + n; row++) {
441 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
446 /* Interpret a 'delete line' sequence (DL) */
447 static void interpret_csi_DL(madtty_t *t, int param[], int pcount)
449 int n = (pcount && param[0] > 0) ? param[0] : 1;
451 if (t->curs_row + n >= t->scroll_bot) {
452 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
453 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
456 t_row_roll(t->curs_row, t->scroll_bot, n);
457 for (t_row_t *row = t->scroll_bot - n; row < t->scroll_bot; row++) {
458 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
463 /* Interpret an 'erase characters' (ECH) sequence */
464 static void interpret_csi_ECH(madtty_t *t, int param[], int pcount)
466 int n = (pcount && param[0] > 0) ? param[0] : 1;
468 if (t->curs_col + n < t->cols) {
469 n = t->cols - t->curs_col;
471 t_row_set(t->curs_row, t->curs_col, n, build_attrs(t->curattrs));
474 /* Interpret a 'set scrolling region' (DECSTBM) sequence */
475 static void interpret_csi_DECSTBM(madtty_t *t, int param[], int pcount)
477 int new_top, new_bot;
481 t->scroll_top = t->lines;
482 t->scroll_bot = t->lines + t->rows;
485 return; /* malformed */
488 new_top = param[0] - 1;
491 /* clamp to bounds */
494 if (new_top >= t->rows)
495 new_top = t->rows - 1;
498 if (new_bot >= t->rows)
501 /* check for range validity */
502 if (new_top < new_bot) {
503 t->scroll_top = t->lines + new_top;
504 t->scroll_bot = t->lines + new_bot;
510 static void es_interpret_csi(madtty_t *t)
512 static int csiparam[BUFSIZ];
514 const char *p = t->ebuf + 1;
515 char verb = t->ebuf[t->elen - 1];
517 p += t->ebuf[1] == '?'; /* CSI private mode */
519 /* parse numeric parameters */
520 while (isdigit((unsigned char)*p) || *p == ';') {
522 if (param_count >= (int)sizeof(csiparam))
523 return; /* too long! */
524 csiparam[param_count++] = 0;
526 if (param_count == 0) csiparam[param_count++] = 0;
527 csiparam[param_count - 1] *= 10;
528 csiparam[param_count - 1] += *p - '0';
534 if (t->ebuf[1] == '?') {
537 if (csiparam[0] == 25)
542 if (csiparam[0] == 25)
548 /* delegate handling depending on command character (verb) */
551 if (param_count == 1 && csiparam[0] == 4) /* insert mode */
555 if (param_count == 1 && csiparam[0] == 4) /* replace mode */
558 case 'm': /* it's a 'set attribute' sequence */
559 interpret_csi_SGR(t, csiparam, param_count); break;
560 case 'J': /* it's an 'erase display' sequence */
561 interpret_csi_ED(t, csiparam, param_count); break;
562 case 'H': case 'f': /* it's a 'move cursor' sequence */
563 interpret_csi_CUP(t, csiparam, param_count); break;
564 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
565 case 'e': case 'a': case 'd': case '`':
566 /* it is a 'relative move' */
567 interpret_csi_C(t, verb, csiparam, param_count); break;
568 case 'K': /* erase line */
569 interpret_csi_EL(t, csiparam, param_count); break;
570 case '@': /* insert characters */
571 interpret_csi_ICH(t, csiparam, param_count); break;
572 case 'P': /* delete characters */
573 interpret_csi_DCH(t, csiparam, param_count); break;
574 case 'L': /* insert lines */
575 interpret_csi_IL(t, csiparam, param_count); break;
576 case 'M': /* delete lines */
577 interpret_csi_DL(t, csiparam, param_count); break;
578 case 'X': /* erase chars */
579 interpret_csi_ECH(t, csiparam, param_count); break;
580 case 'r': /* set scrolling region */
581 interpret_csi_DECSTBM(t, csiparam, param_count); break;
582 case 's': /* save cursor location */
583 t->curs_srow = t->curs_row - t->lines;
584 t->curs_scol = t->curs_col;
586 case 'u': /* restore cursor location */
587 t->curs_row = t->lines + t->curs_srow;
588 t->curs_col = t->curs_scol;
589 clamp_cursor_to_bounds(t);
596 static void try_interpret_escape_seq(madtty_t *t)
598 char lastchar = t->ebuf[t->elen-1];
606 cancel_escape_sequence(t);
615 case ']': /* xterm thing */
616 if (lastchar == '\a')
624 if (is_valid_csi_ender(lastchar)) {
626 cancel_escape_sequence(t);
632 if (t->elen + 1 >= (int)sizeof(t->ebuf)) {
635 fprintf(stderr, "cancelled: \\033");
636 for (int i = 0; i < (int)t->elen; i++) {
637 if (isprint(t->ebuf[i])) {
638 fputc(t->ebuf[i], stderr);
640 fprintf(stderr, "\\%03o", t->ebuf[i]);
645 cancel_escape_sequence(t);
649 static void madtty_process_nonprinting(madtty_t *t, wchar_t wc)
653 new_escape_sequence(t);
657 /* do nothing for now... maybe a visual bell would be nice? */
665 case C0_HT: /* tab */
666 t->curs_col = (t->curs_col + 8) & ~7;
667 if (t->curs_col >= t->cols)
668 t->curs_col = t->cols - 1;
681 case C0_SO: /* shift out - acs */
684 case C0_SI: /* shift in - acs */
685 t->graphmode = false;
692 static void is_utf8_locale(void)
694 const char *l = getenv("LANG");
696 is_utf8 = (strstr(l, "UTF-8") != NULL);
699 // vt100 special graphics and line drawing
700 // 5f-7e standard vt100
701 // 40-5e rxvt extension for extra curses acs chars
702 static uint16_t const vt100_utf8[62] = { // 41 .. 7e
703 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
704 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
705 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
706 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
707 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
708 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
709 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
710 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
713 static uint32_t vt100[62];
715 void madtty_init_vt100_graphics(void)
717 vt100['l' - 0x41] = ACS_ULCORNER;
718 vt100['m' - 0x41] = ACS_LLCORNER;
719 vt100['k' - 0x41] = ACS_URCORNER;
720 vt100['j' - 0x41] = ACS_LRCORNER;
721 vt100['u' - 0x41] = ACS_RTEE;
722 vt100['t' - 0x41] = ACS_LTEE;
723 vt100['v' - 0x41] = ACS_TTEE;
724 vt100['w' - 0x41] = ACS_BTEE;
725 vt100['q' - 0x41] = ACS_HLINE;
726 vt100['x' - 0x41] = ACS_VLINE;
727 vt100['n' - 0x41] = ACS_PLUS;
728 vt100['o' - 0x41] = ACS_S1;
729 vt100['s' - 0x41] = ACS_S9;
730 vt100['`' - 0x41] = ACS_DIAMOND;
731 vt100['a' - 0x41] = ACS_CKBOARD;
732 vt100['f' - 0x41] = ACS_DEGREE;
733 vt100['g' - 0x41] = ACS_PLMINUS;
734 vt100['~' - 0x41] = ACS_BULLET;
735 vt100[',' - 0x41] = ACS_LARROW;
736 vt100['+' - 0x41] = ACS_RARROW;
737 vt100['.' - 0x41] = ACS_DARROW;
738 vt100['-' - 0x41] = ACS_UARROW;
739 vt100['h' - 0x41] = ACS_BOARD;
740 vt100['i' - 0x41] = ACS_LANTERN;
741 vt100['0' - 0x41] = ACS_BLOCK;
742 /* these defaults were invented for ncurses */
743 vt100['p' - 0x41] = ACS_S3;
744 vt100['r' - 0x41] = ACS_S7;
745 vt100['y' - 0x41] = ACS_LEQUAL;
746 vt100['z' - 0x41] = ACS_GEQUAL;
747 vt100['{' - 0x41] = ACS_PI;
748 vt100['|' - 0x41] = ACS_NEQUAL;
749 vt100['}' - 0x41] = ACS_STERLING;
753 static void madtty_putc(madtty_t *t, wchar_t wc)
757 if (!t->seen_input) {
759 kill(-t->childpid, SIGWINCH);
763 assert (t->elen + 1 < (int)sizeof(t->ebuf));
764 t->ebuf[t->elen] = wc;
765 t->ebuf[++t->elen] = '\0';
766 try_interpret_escape_seq(t);
767 } else if (IS_CONTROL(wc)) {
768 madtty_process_nonprinting(t, wc);
773 if (wc >= 0x41 && wc <= 0x7e) {
774 if(is_utf8 && vt100_utf8[wc - 0x41])
775 wc = vt100_utf8[wc - 0x41];
776 else if(!is_utf8 && vt100[wc - 0x41])
777 wc = vt100[wc - 0x41];
781 width = wcwidth(wc) ?: 1;
784 if (width == 2 && t->curs_col == t->cols - 1) {
787 tmp->text[t->curs_col] = 0;
788 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
792 if (t->curs_col >= t->cols) {
801 wmemmove(tmp->text + t->curs_col + width, tmp->text + t->curs_col,
802 (t->cols - t->curs_col - width));
803 memmove(tmp->attr + t->curs_col + width, tmp->attr + t->curs_col,
804 (t->cols - t->curs_col - width) * sizeof(tmp->attr[0]));
807 tmp->text[t->curs_col] = wc;
808 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
811 tmp->text[t->curs_col] = 0;
812 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
818 int madtty_process(madtty_t *t)
827 res = read(t->pty, t->rbuf + t->rlen, sizeof(t->rbuf) - t->rlen);
832 while (pos < t->rlen) {
836 len = (ssize_t)mbrtowc(&wc, t->rbuf + pos, t->rlen - pos, &t->ps);
839 memmove(t->rbuf, t->rbuf + pos, t->rlen);
848 pos += len ? len : 1;
853 memmove(t->rbuf, t->rbuf + pos, t->rlen);
857 madtty_t *madtty_create(int rows, int cols)
862 if (rows <= 0 || cols <= 0)
865 t = (madtty_t*)calloc(sizeof(madtty_t), 1);
869 /* record dimensions */
873 /* default mode is replace */
876 /* create the cell matrix */
877 t->lines = (t_row_t*)calloc(sizeof(t_row_t), t->rows);
878 for (i = 0; i < t->rows; i++) {
879 t->lines[i].text = (wchar_t *)calloc(sizeof(wchar_t), t->cols);
880 t->lines[i].attr = (uint16_t *)calloc(sizeof(uint16_t), t->cols);
883 t->pty = -1; /* no pty for now */
885 /* initialization of other public fields */
886 t->curs_row = t->lines;
888 t->curattrs = A_NORMAL; /* white text over black background */
890 /* initial scrolling area is the whole window */
891 t->scroll_top = t->lines;
892 t->scroll_bot = t->lines + t->rows;
897 void madtty_resize(madtty_t *t, int rows, int cols)
899 struct winsize ws = { .ws_row = rows, .ws_col = cols };
900 t_row_t *lines = t->lines;
902 if (rows <= 0 || cols <= 0)
905 if (t->rows != rows) {
906 while (t->rows > rows) {
907 free(lines[t->rows - 1].text);
908 free(lines[t->rows - 1].attr);
912 lines = realloc(lines, sizeof(t_row_t) * rows);
915 if (t->cols != cols) {
916 for (int row = 0; row < t->rows; row++) {
917 lines[row].text = realloc(lines[row].text, sizeof(wchar_t) * cols);
918 lines[row].attr = realloc(lines[row].attr, sizeof(uint16_t) * cols);
920 t_row_set(lines + row, t->cols, cols - t->cols, 0);
922 lines[row].dirty = true;
927 while (t->rows < rows) {
928 lines[t->rows].text = (wchar_t *)calloc(sizeof(wchar_t), cols);
929 lines[t->rows].attr = (uint16_t *)calloc(sizeof(uint16_t), cols);
930 t_row_set(lines + t->rows, 0, t->cols, 0);
934 t->curs_row += lines - t->lines;
935 t->scroll_top = lines;
936 t->scroll_bot = lines + rows;
938 clamp_cursor_to_bounds(t);
939 ioctl(t->pty, TIOCSWINSZ, &ws);
940 kill(-t->childpid, SIGWINCH);
943 void madtty_destroy(madtty_t *t)
949 for (i = 0; i < t->rows; i++) {
950 free(t->lines[i].text);
951 free(t->lines[i].attr);
957 void madtty_draw(madtty_t *t, WINDOW *win, int srow, int scol)
960 for (int i = 0; i < t->rows; i++) {
961 t_row_t *row = t->lines + i;
967 wmove(win, srow + i, scol);
968 for (int j = 0; j < t->cols; j++) {
969 if (!j || row->attr[j] != row->attr[j - 1])
970 wattrset(win, (attr_t)row->attr[j] << NCURSES_ATTR_SHIFT);
971 if (is_utf8 && row->text[j] >= 128) {
972 char buf[MB_CUR_MAX + 1];
975 len = wcrtomb(buf, row->text[j], NULL);
976 waddnstr(win, buf, len);
977 if (wcwidth(row->text[j]) > 1)
980 waddch(win, row->text[j] > ' ' ? row->text[j] : ' ');
986 wmove(win, srow + t->curs_row - t->lines, scol + t->curs_col);
987 curs_set(!t->curshid);
990 /******************************************************/
992 pid_t madtty_forkpty(madtty_t *t, const char *p, const char *argv[], int *pty)
999 ws.ws_xpixel = ws.ws_ypixel = 0;
1001 pid = forkpty(&t->pty, NULL, NULL, &ws);
1007 setenv("TERM", "rxvt", 1);
1008 execv(p, (char *const*)argv);
1009 fprintf(stderr, "\nexecv() failed.\nCommand: '%s'\n", argv[0]);
1015 return t->childpid = pid;
1018 int madtty_getpty(madtty_t *t)
1023 void madtty_keypress(madtty_t *t, int keycode)
1025 char c = (char)keycode;
1029 if (keycode >= 0 && keycode < KEY_MAX && keytable[keycode]) {
1030 buf = keytable[keycode];
1031 len = strlen(keytable[keycode]);
1038 int res = write(t->pty, buf, len);
1039 if (res < 0 && errno != EAGAIN && errno != EINTR)
1047 void madtty_init_colors(void)
1049 if (COLOR_PAIRS > 64) {
1050 use_default_colors();
1053 for (int bg = -1; bg < 8; bg++) {
1054 for (int fg = -1; fg < 8; fg++) {
1055 init_pair((fg + 1) * 16 + bg + 1, fg, bg);
1059 int use_default = use_default_colors() == OK;
1060 for (int bg = 0; bg < 8; bg++) {
1061 for (int fg = 0; fg < 8; fg++) {
1063 init_pair((7 - fg) * 8 + bg,
1064 fg == COLOR_WHITE ? -1 : fg,
1065 bg == COLOR_BLACK ? -1 : bg);
1067 init_pair((7 - fg) * 8 + bg, fg, bg);
1074 int madtty_color_pair(int fg, int bg)
1081 return COLOR_PAIR((fg + 1) * 16 + bg + 1);
1087 return COLOR_PAIR((7 - fg) * 8 + bg);