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
22 #include <lib-ui/lib-ui.h>
26 #include <sys/ioctl.h>
32 #define IS_CONTROL(ch) !((ch) & 0xffffff60UL)
34 static int has_default, is_utf8;
38 C0_SOH, C0_STX, C0_ETX, C0_EOT, C0_ENQ, C0_ACK, C0_BEL,
39 C0_BS , C0_HT , C0_LF , C0_VT , C0_FF , C0_CR , C0_SO , C0_SI ,
40 C0_DLE, C0_DC1, C0_DC2, D0_DC3, C0_DC4, C0_NAK, C0_SYN, C0_ETB,
41 C0_CAN, C0_EM , C0_SUB, C0_ESC, C0_IS4, C0_IS3, C0_IS2, C0_IS1,
46 C1_41 , C1_BPH, C1_NBH, C1_44 , C1_NEL, C1_SSA, C1_ESA,
47 C1_HTS, C1_HTJ, C1_VTS, C1_PLD, C1_PLU, C1_RI , C1_SS2, C1_SS3,
48 C1_DCS, C1_PU1, C1_PU2, C1_STS, C1_CCH, C1_MW , C1_SPA, C1_EPA,
49 C1_SOS, C1_59 , C1_SCI, C1_CSI, CS_ST , C1_OSC, C1_PM , C1_APC,
54 CSI_CUU, CSI_CUD, CSI_CUF, CSI_CUB, CSI_CNL, CSI_CPL, CSI_CHA,
55 CSI_CUP, CSI_CHT, CSI_ED , CSI_EL , CSI_IL , CSI_DL , CSI_EF , CSI_EA ,
56 CSI_DCH, CSI_SEE, CSI_CPR, CSI_SU , CSI_SD , CSI_NP , CSI_PP , CSI_CTC,
57 CSI_ECH, CSI_CVT, CSI_CBT, CSI_SRS, CSI_PTX, CSI_SDS, CSI_SIMD, CSI_5F,
58 CSI_HPA, CSI_HPR, CSI_REP, CSI_DA , CSI_VPA, CSI_VPR, CSI_HVP, CSI_TBC,
59 CSI_SM , CSI_MC , CSI_HPB, CSI_VPB, CSI_RM , CSI_SGR, CSI_DSR, CSI_DAQ,
60 CSI_70 , CSI_71 , CSI_72 , CSI_73 , CSI_74 , CSI_75 , CSI_76 , CSI_77 ,
61 CSI_78 , CSI_79 , CSI_7A , CSI_7B , CSI_7C , CSI_7D , CSI_7E , CSI_7F
69 unsigned seen_input : 1;
72 unsigned graphmode : 1;
74 unsigned curskeymode: 1;
80 struct t_row_t *lines;
81 struct t_row_t *scroll_top;
82 struct t_row_t *scroll_bot;
85 struct t_row_t *curs_row;
86 int curs_col, curs_srow, curs_scol;
88 /* buffers and parsing state */
94 /* custom escape sequence handler */
95 madtty_handler_t handler;
99 typedef struct t_row_t {
105 static char const * const keytable[KEY_MAX+1] = {
107 /* for the arrow keys the CSI / SS3 sequences are not stored here
108 * because they depend on the current cursor terminal mode
114 [KEY_BACKSPACE] = "\177",
115 [KEY_HOME] = "\e[1~",
119 [KEY_PPAGE] = "\e[5~",
120 [KEY_NPAGE] = "\e[6~",
121 [KEY_SUSPEND] = "\x1A", /* Ctrl+Z gets mapped to this */
122 [KEY_F(1)] = "\e[11~",
123 [KEY_F(2)] = "\e[12~",
124 [KEY_F(3)] = "\e[13~",
125 [KEY_F(4)] = "\e[14~",
126 [KEY_F(5)] = "\e[15~",
127 [KEY_F(6)] = "\e[17~",
128 [KEY_F(7)] = "\e[18~",
129 [KEY_F(8)] = "\e[19~",
130 [KEY_F(9)] = "\e[20~",
131 [KEY_F(10)] = "\e[21~",
132 [KEY_F(11)] = "\e[23~",
133 [KEY_F(12)] = "\e[24~",
134 [KEY_F(13)] = "\e[25~",
135 [KEY_F(14)] = "\e[26~",
136 [KEY_F(15)] = "\e[28~",
137 [KEY_F(16)] = "\e[29~",
138 [KEY_F(17)] = "\e[31~",
139 [KEY_F(18)] = "\e[32~",
140 [KEY_F(19)] = "\e[33~",
141 [KEY_F(20)] = "\e[34~",
144 static void t_row_set(t_row_t *row, int start, int len, uint16_t attr)
147 wmemset(row->text + start, 0, len);
148 for (int i = start; i < len + start; i++) {
153 static void t_row_roll(t_row_t *start, t_row_t *end, int count)
162 t_row_t *buf = alloca(count * sizeof(t_row_t));
164 memcpy(buf, start, count * sizeof(t_row_t));
165 memmove(start, start + count, (n - count) * sizeof(t_row_t));
166 memcpy(end - count, buf, count * sizeof(t_row_t));
167 for (t_row_t *row = start; row < end; row++) {
173 static void clamp_cursor_to_bounds(madtty_t *t)
175 if (t->curs_row < t->lines) {
176 t->curs_row = t->lines;
178 if (t->curs_row >= t->lines + t->rows) {
179 t->curs_row = t->lines + t->rows - 1;
182 if (t->curs_col < 0) {
185 if (t->curs_col >= t->cols) {
186 t->curs_col = t->cols - 1;
190 static void cursor_line_down(madtty_t *t)
193 if (t->curs_row < t->scroll_bot)
196 t->curs_row = t->scroll_bot - 1;
197 t_row_roll(t->scroll_top, t->scroll_bot, 1);
198 t_row_set(t->curs_row, 0, t->cols, 0);
201 __attribute__((const))
202 static uint16_t build_attrs(unsigned curattrs)
204 return ((curattrs & ~A_COLOR) | COLOR_PAIR(curattrs & 0xff))
205 >> NCURSES_ATTR_SHIFT;
208 static void new_escape_sequence(madtty_t *t)
215 static void cancel_escape_sequence(madtty_t *t)
222 static bool is_valid_csi_ender(int c)
224 return (c >= 'a' && c <= 'z')
225 || (c >= 'A' && c <= 'Z')
226 || (c == '@' || c == '`');
229 /* interprets a 'set attribute' (SGR) CSI escape sequence */
230 static void interpret_csi_SGR(madtty_t *t, int param[], int pcount)
235 /* special case: reset attributes */
236 t->curattrs = A_NORMAL;
240 for (i = 0; i < pcount; i++) {
242 #define CASE(x, op) case x: op; break
243 CASE(0, t->curattrs = A_NORMAL);
244 CASE(1, t->curattrs |= A_BOLD);
245 CASE(4, t->curattrs |= A_UNDERLINE);
246 CASE(5, t->curattrs |= A_BLINK);
247 CASE(6, t->curattrs |= A_BLINK);
248 CASE(7, t->curattrs |= A_REVERSE);
249 CASE(8, t->curattrs |= A_INVIS);
250 CASE(22, t->curattrs &= ~A_BOLD);
251 CASE(24, t->curattrs &= ~A_UNDERLINE);
252 CASE(25, t->curattrs &= ~A_BLINK);
253 CASE(27, t->curattrs &= ~A_REVERSE);
254 CASE(28, t->curattrs &= ~A_INVIS);
256 case 30 ... 37: /* fg */
258 t->curattrs &= ~0xf0;
259 t->curattrs |= (param[i] + 1 - 30) << 4;
262 t->curattrs |= (7 - (param[i] - 30)) << 3;
267 t->curattrs &= has_default ? ~0xf0 : ~070;
270 case 40 ... 47: /* bg */
272 t->curattrs &= ~0x0f;
273 t->curattrs |= (param[i] + 1 - 40);
276 t->curattrs |= (param[i] - 40);
281 t->curattrs &= has_default ? ~0x0f : ~007;
290 /* interprets an 'erase display' (ED) escape sequence */
291 static void interpret_csi_ED(madtty_t *t, int param[], int pcount)
293 t_row_t *row, *start, *end;
294 attr_t attr = build_attrs(t->curattrs);
297 if (pcount && param[0] == 2) {
299 end = t->lines + t->rows;
301 if (pcount && param[0] == 1) {
304 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
306 t_row_set(t->curs_row, t->curs_col,
307 t->cols - t->curs_col, attr);
308 start = t->curs_row + 1;
309 end = t->lines + t->rows;
312 for (row = start; row < end; row++) {
313 t_row_set(row, 0, t->cols, attr);
317 /* interprets a 'move cursor' (CUP) escape sequence */
318 static void interpret_csi_CUP(madtty_t *t, int param[], int pcount)
322 t->curs_row = t->lines;
327 return; /* malformed */
330 t->curs_row = t->lines + param[0] - 1;
331 t->curs_col = param[1] - 1;
333 clamp_cursor_to_bounds(t);
336 /* Interpret the 'relative mode' sequences: CUU, CUD, CUF, CUB, CNL,
337 * CPL, CHA, HPR, VPA, VPR, HPA */
339 interpret_csi_C(madtty_t *t, char verb, int param[], int pcount)
341 int n = (pcount && param[0] > 0) ? param[0] : 1;
344 case 'A': t->curs_row -= n; break;
345 case 'B': case 'e': t->curs_row += n; break;
346 case 'C': case 'a': t->curs_col += n; break;
347 case 'D': t->curs_col -= n; break;
348 case 'E': t->curs_row += n; t->curs_col = 0; break;
349 case 'F': t->curs_row -= n; t->curs_col = 0; break;
350 case 'G': case '`': t->curs_col = param[0] - 1; break;
351 case 'd': t->curs_row = t->lines + param[0] - 1; break;
354 clamp_cursor_to_bounds(t);
357 /* Interpret the 'erase line' escape sequence */
358 static void interpret_csi_EL(madtty_t *t, int param[], int pcount)
360 attr_t attr = build_attrs(t->curattrs);
362 switch (pcount ? param[0] : 0) {
364 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
367 t_row_set(t->curs_row, 0, t->cols, attr);
370 t_row_set(t->curs_row, t->curs_col, t->cols - t->curs_col,
376 /* Interpret the 'insert blanks' sequence (ICH) */
377 static void interpret_csi_ICH(madtty_t *t, int param[], int pcount)
379 t_row_t *row = t->curs_row;
380 int n = (pcount && param[0] > 0) ? param[0] : 1;
383 if (t->curs_col + n > t->cols) {
384 n = t->cols - t->curs_col;
387 for (i = t->cols - 1; i >= t->curs_col + n; i--) {
388 row->text[i] = row->text[i - n];
389 row->attr[i] = row->attr[i - n];
392 t_row_set(row, t->curs_col, n, build_attrs(t->curattrs));
395 /* Interpret the 'delete chars' sequence (DCH) */
396 static void interpret_csi_DCH(madtty_t *t, int param[], int pcount)
398 t_row_t *row = t->curs_row;
399 int n = (pcount && param[0] > 0) ? param[0] : 1;
402 if (t->curs_col + n > t->cols) {
403 n = t->cols - t->curs_col;
406 for (i = t->curs_col; i < t->cols - n; i++) {
407 row->text[i] = row->text[i + n];
408 row->attr[i] = row->attr[i + n];
411 t_row_set(row, t->cols - n, n, build_attrs(t->curattrs));
414 /* Interpret a 'scroll reverse' (SR) */
415 static void interpret_csi_SR(madtty_t *t)
417 t_row_roll(t->scroll_top, t->scroll_bot, -1);
418 t_row_set(t->scroll_top, 0, t->cols, build_attrs(t->curattrs));
421 /* Interpret an 'insert line' sequence (IL) */
422 static void interpret_csi_IL(madtty_t *t, int param[], int pcount)
424 int n = (pcount && param[0] > 0) ? param[0] : 1;
426 if (t->curs_row + n >= t->scroll_bot) {
427 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
428 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
431 t_row_roll(t->curs_row, t->scroll_bot, -n);
432 for (t_row_t *row = t->curs_row; row < t->curs_row + n; row++) {
433 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
438 /* Interpret a 'delete line' sequence (DL) */
439 static void interpret_csi_DL(madtty_t *t, int param[], int pcount)
441 int n = (pcount && param[0] > 0) ? param[0] : 1;
443 if (t->curs_row + n >= t->scroll_bot) {
444 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
445 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
448 t_row_roll(t->curs_row, t->scroll_bot, n);
449 for (t_row_t *row = t->scroll_bot - n; row < t->scroll_bot; row++) {
450 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
455 /* Interpret an 'erase characters' (ECH) sequence */
456 static void interpret_csi_ECH(madtty_t *t, int param[], int pcount)
458 int n = (pcount && param[0] > 0) ? param[0] : 1;
460 if (t->curs_col + n < t->cols) {
461 n = t->cols - t->curs_col;
463 t_row_set(t->curs_row, t->curs_col, n, build_attrs(t->curattrs));
466 /* Interpret a 'set scrolling region' (DECSTBM) sequence */
467 static void interpret_csi_DECSTBM(madtty_t *t, int param[], int pcount)
469 int new_top, new_bot;
473 t->scroll_top = t->lines;
474 t->scroll_bot = t->lines + t->rows;
477 return; /* malformed */
480 new_top = param[0] - 1;
483 /* clamp to bounds */
486 if (new_top >= t->rows)
487 new_top = t->rows - 1;
490 if (new_bot >= t->rows)
493 /* check for range validity */
494 if (new_top < new_bot) {
495 t->scroll_top = t->lines + new_top;
496 t->scroll_bot = t->lines + new_bot;
502 static void es_interpret_csi(madtty_t *t)
504 static int csiparam[BUFSIZ];
506 const char *p = t->ebuf + 1;
507 char verb = t->ebuf[t->elen - 1];
509 p += t->ebuf[1] == '?'; /* CSI private mode */
511 /* parse numeric parameters */
512 while (isdigit((unsigned char)*p) || *p == ';') {
514 if (param_count >= (int)sizeof(csiparam))
515 return; /* too long! */
516 csiparam[param_count++] = 0;
518 if (param_count == 0) csiparam[param_count++] = 0;
519 csiparam[param_count - 1] *= 10;
520 csiparam[param_count - 1] += *p - '0';
526 if (t->ebuf[1] == '?') {
529 if (csiparam[0] == 25)
531 if (csiparam[0] == 1) /* DECCKM: reset ANSI cursor (normal) key mode */
536 if (csiparam[0] == 25)
538 if (csiparam[0] == 1) /* DECCKM: set ANSI cursor (application) key mode */
544 /* delegate handling depending on command character (verb) */
547 if (param_count == 1 && csiparam[0] == 4) /* insert mode */
551 if (param_count == 1 && csiparam[0] == 4) /* replace mode */
554 case 'm': /* it's a 'set attribute' sequence */
555 interpret_csi_SGR(t, csiparam, param_count); break;
556 case 'J': /* it's an 'erase display' sequence */
557 interpret_csi_ED(t, csiparam, param_count); break;
558 case 'H': case 'f': /* it's a 'move cursor' sequence */
559 interpret_csi_CUP(t, csiparam, param_count); break;
560 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
561 case 'e': case 'a': case 'd': case '`':
562 /* it is a 'relative move' */
563 interpret_csi_C(t, verb, csiparam, param_count); break;
564 case 'K': /* erase line */
565 interpret_csi_EL(t, csiparam, param_count); break;
566 case '@': /* insert characters */
567 interpret_csi_ICH(t, csiparam, param_count); break;
568 case 'P': /* delete characters */
569 interpret_csi_DCH(t, csiparam, param_count); break;
570 case 'L': /* insert lines */
571 interpret_csi_IL(t, csiparam, param_count); break;
572 case 'M': /* delete lines */
573 interpret_csi_DL(t, csiparam, param_count); break;
574 case 'X': /* erase chars */
575 interpret_csi_ECH(t, csiparam, param_count); break;
576 case 'r': /* set scrolling region */
577 interpret_csi_DECSTBM(t, csiparam, param_count); break;
578 case 's': /* save cursor location */
579 t->curs_srow = t->curs_row - t->lines;
580 t->curs_scol = t->curs_col;
582 case 'u': /* restore cursor location */
583 t->curs_row = t->lines + t->curs_srow;
584 t->curs_col = t->curs_scol;
585 clamp_cursor_to_bounds(t);
592 static void try_interpret_escape_seq(madtty_t *t)
594 char lastchar = t->ebuf[t->elen-1];
598 switch((*(t->handler))(t, t->ebuf)){
599 case MADTTY_HANDLER_OK:
601 case MADTTY_HANDLER_NOTYET:
608 cancel_escape_sequence(t);
617 case ']': /* xterm thing */
618 if (lastchar == '\a')
626 if (is_valid_csi_ender(lastchar)) {
628 cancel_escape_sequence(t);
634 if (t->elen + 1 >= (int)sizeof(t->ebuf)) {
636 cancel_escape_sequence(t);
640 static void madtty_process_nonprinting(madtty_t *t, wchar_t wc)
644 new_escape_sequence(t);
648 /* do nothing for now... maybe a visual bell would be nice? */
656 case C0_HT: /* tab */
657 t->curs_col = (t->curs_col + 8) & ~7;
658 if (t->curs_col >= t->cols)
659 t->curs_col = t->cols - 1;
672 case C0_SO: /* shift out - acs */
675 case C0_SI: /* shift in - acs */
676 t->graphmode = false;
681 static void is_utf8_locale(void)
683 const char *cset = nl_langinfo(CODESET) ?: "ANSI_X3.4-1968";
684 is_utf8 = !strcmp(cset, "UTF-8");
687 // vt100 special graphics and line drawing
688 // 5f-7e standard vt100
689 // 40-5e rxvt extension for extra curses acs chars
690 static uint16_t const vt100_utf8[62] = { // 41 .. 7e
691 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
692 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
693 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
694 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
695 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
696 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
697 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
698 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
701 static uint32_t vt100[62];
703 void madtty_init_vt100_graphics(void)
705 vt100['l' - 0x41] = ACS_ULCORNER;
706 vt100['m' - 0x41] = ACS_LLCORNER;
707 vt100['k' - 0x41] = ACS_URCORNER;
708 vt100['j' - 0x41] = ACS_LRCORNER;
709 vt100['u' - 0x41] = ACS_RTEE;
710 vt100['t' - 0x41] = ACS_LTEE;
711 vt100['v' - 0x41] = ACS_TTEE;
712 vt100['w' - 0x41] = ACS_BTEE;
713 vt100['q' - 0x41] = ACS_HLINE;
714 vt100['x' - 0x41] = ACS_VLINE;
715 vt100['n' - 0x41] = ACS_PLUS;
716 vt100['o' - 0x41] = ACS_S1;
717 vt100['s' - 0x41] = ACS_S9;
718 vt100['`' - 0x41] = ACS_DIAMOND;
719 vt100['a' - 0x41] = ACS_CKBOARD;
720 vt100['f' - 0x41] = ACS_DEGREE;
721 vt100['g' - 0x41] = ACS_PLMINUS;
722 vt100['~' - 0x41] = ACS_BULLET;
723 #if 0 /* out of bounds */
724 vt100[',' - 0x41] = ACS_LARROW;
725 vt100['+' - 0x41] = ACS_RARROW;
726 vt100['.' - 0x41] = ACS_DARROW;
727 vt100['-' - 0x41] = ACS_UARROW;
728 vt100['0' - 0x41] = ACS_BLOCK;
730 vt100['h' - 0x41] = ACS_BOARD;
731 vt100['i' - 0x41] = ACS_LANTERN;
732 /* these defaults were invented for ncurses */
733 vt100['p' - 0x41] = ACS_S3;
734 vt100['r' - 0x41] = ACS_S7;
735 vt100['y' - 0x41] = ACS_LEQUAL;
736 vt100['z' - 0x41] = ACS_GEQUAL;
737 vt100['{' - 0x41] = ACS_PI;
738 vt100['|' - 0x41] = ACS_NEQUAL;
739 vt100['}' - 0x41] = ACS_STERLING;
743 static void madtty_putc(madtty_t *t, wchar_t wc)
747 if (!t->seen_input) {
749 kill(-t->childpid, SIGWINCH);
753 assert (t->elen + 1 < (int)sizeof(t->ebuf));
754 t->ebuf[t->elen] = wc;
755 t->ebuf[++t->elen] = '\0';
756 try_interpret_escape_seq(t);
757 } else if (IS_CONTROL(wc)) {
758 madtty_process_nonprinting(t, wc);
763 if (wc >= 0x41 && wc <= 0x7e) {
764 wchar_t gc = is_utf8 ? vt100_utf8[wc - 0x41] : vt100[wc - 0x41];
770 width = wcwidth(wc) ?: 1;
773 if (width == 2 && t->curs_col == t->cols - 1) {
776 tmp->text[t->curs_col] = 0;
777 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
781 if (t->curs_col >= t->cols) {
790 wmemmove(tmp->text + t->curs_col + width, tmp->text + t->curs_col,
791 (t->cols - t->curs_col - width));
792 memmove(tmp->attr + t->curs_col + width, tmp->attr + t->curs_col,
793 (t->cols - t->curs_col - width) * sizeof(tmp->attr[0]));
796 tmp->text[t->curs_col] = wc;
797 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
800 tmp->text[t->curs_col] = 0;
801 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
807 int madtty_process(madtty_t *t)
816 res = read(t->pty, t->rbuf + t->rlen, sizeof(t->rbuf) - t->rlen);
821 while (pos < t->rlen) {
825 len = (ssize_t)mbrtowc(&wc, t->rbuf + pos, t->rlen - pos, &t->ps);
828 memmove(t->rbuf, t->rbuf + pos, t->rlen);
837 pos += len ? len : 1;
842 memmove(t->rbuf, t->rbuf + pos, t->rlen);
846 madtty_t *madtty_create(int rows, int cols)
851 if (rows <= 0 || cols <= 0)
854 t = (madtty_t*)calloc(sizeof(madtty_t), 1);
858 /* record dimensions */
862 /* default mode is replace */
865 /* create the cell matrix */
866 t->lines = (t_row_t*)calloc(sizeof(t_row_t), t->rows);
867 for (i = 0; i < t->rows; i++) {
868 t->lines[i].text = (wchar_t *)calloc(sizeof(wchar_t), t->cols);
869 t->lines[i].attr = (uint16_t *)calloc(sizeof(uint16_t), t->cols);
872 t->pty = -1; /* no pty for now */
874 /* initialization of other public fields */
875 t->curs_row = t->lines;
877 t->curattrs = A_NORMAL; /* white text over black background */
879 /* initial scrolling area is the whole window */
880 t->scroll_top = t->lines;
881 t->scroll_bot = t->lines + t->rows;
886 void madtty_resize(madtty_t *t, int rows, int cols)
888 struct winsize ws = { .ws_row = rows, .ws_col = cols };
889 t_row_t *lines = t->lines;
891 if (rows <= 0 || cols <= 0)
894 if (t->rows != rows) {
895 while (t->rows > rows) {
896 free(lines[t->rows - 1].text);
897 free(lines[t->rows - 1].attr);
901 lines = realloc(lines, sizeof(t_row_t) * rows);
904 if (t->cols != cols) {
905 for (int row = 0; row < t->rows; row++) {
906 lines[row].text = realloc(lines[row].text, sizeof(wchar_t) * cols);
907 lines[row].attr = realloc(lines[row].attr, sizeof(uint16_t) * cols);
909 t_row_set(lines + row, t->cols, cols - t->cols, 0);
911 lines[row].dirty = true;
916 while (t->rows < rows) {
917 lines[t->rows].text = (wchar_t *)calloc(sizeof(wchar_t), cols);
918 lines[t->rows].attr = (uint16_t *)calloc(sizeof(uint16_t), cols);
919 t_row_set(lines + t->rows, 0, t->cols, 0);
923 t->curs_row += lines - t->lines;
924 t->scroll_top = lines;
925 t->scroll_bot = lines + rows;
927 clamp_cursor_to_bounds(t);
928 ioctl(t->pty, TIOCSWINSZ, &ws);
929 kill(-t->childpid, SIGWINCH);
932 void madtty_destroy(madtty_t *t)
938 for (i = 0; i < t->rows; i++) {
939 free(t->lines[i].text);
940 free(t->lines[i].attr);
946 void madtty_dirty(madtty_t *t)
948 for (int i = 0; i < t->rows; i++)
949 t->lines[i].dirty = true;
952 void madtty_draw(madtty_t *t, WINDOW *win, int srow, int scol)
955 for (int i = 0; i < t->rows; i++) {
956 t_row_t *row = t->lines + i;
962 wmove(win, srow + i, scol);
963 for (int j = 0; j < t->cols; j++) {
964 if (!j || row->attr[j] != row->attr[j - 1])
965 wattrset(win, (attr_t)row->attr[j] << NCURSES_ATTR_SHIFT);
966 if (is_utf8 && row->text[j] >= 128) {
967 char buf[MB_CUR_MAX + 1];
970 len = wcrtomb(buf, row->text[j], NULL);
971 waddnstr(win, buf, len);
972 if (wcwidth(row->text[j]) > 1)
975 waddch(win, row->text[j] > ' ' ? row->text[j] : ' ');
981 wmove(win, srow + t->curs_row - t->lines, scol + t->curs_col);
982 curs_set(!t->curshid);
985 /******************************************************/
987 pid_t madtty_forkpty(madtty_t *t, const char *p, const char *argv[], int *pty)
994 ws.ws_xpixel = ws.ws_ypixel = 0;
996 pid = forkpty(&t->pty, NULL, NULL, &ws);
1002 setenv("TERM", "rxvt", 1);
1003 execv(p, (char *const*)argv);
1004 fprintf(stderr, "\nexecv() failed.\nCommand: '%s'\n", argv[0]);
1010 return t->childpid = pid;
1013 int madtty_getpty(madtty_t *t)
1018 static void term_write(madtty_t *t, const char *buf, int len)
1021 int res = write(t->pty, buf, len);
1022 if (res < 0 && errno != EAGAIN && errno != EINTR)
1030 void madtty_keypress(madtty_t *t, int keycode)
1032 char c = (char)keycode;
1034 if (keycode >= 0 && keycode < KEY_MAX && keytable[keycode]) {
1040 char keyseq[3] = { '\e', (t->curskeymode ? 'O' : '['), keytable[keycode][0] };
1041 term_write(t, keyseq, 3);
1045 term_write(t, keytable[keycode], strlen(keytable[keycode]));
1048 term_write(t, &c, 1);
1051 void madtty_keypress_sequence(madtty_t *t, const char *seq)
1053 int key, len = strlen(seq);
1054 /* check for function keys from putty, this makes the
1055 * keypad work but it's probably not the right way to
1056 * do it. the sequence we look for is \eO + a character
1057 * representing the number.
1059 if(len == 3 && seq[0] == '\e' && seq[1] == 'O') {
1061 if(key >= '0' && key <= '9')
1062 madtty_keypress(t, key);
1064 term_write(t, seq, len);
1067 void madtty_init_colors(void)
1069 if (COLOR_PAIRS > 64) {
1070 use_default_colors();
1073 for (int bg = -1; bg < 8; bg++) {
1074 for (int fg = -1; fg < 8; fg++) {
1075 init_pair((fg + 1) * 16 + bg + 1, fg, bg);
1079 int use_default = use_default_colors() == OK;
1080 for (int bg = 0; bg < 8; bg++) {
1081 for (int fg = 0; fg < 8; fg++) {
1083 init_pair((7 - fg) * 8 + bg,
1084 fg == COLOR_WHITE ? -1 : fg,
1085 bg == COLOR_BLACK ? -1 : bg);
1087 init_pair((7 - fg) * 8 + bg, fg, bg);
1094 int madtty_color_pair(int fg, int bg)
1101 return COLOR_PAIR((fg + 1) * 16 + bg + 1);
1107 return COLOR_PAIR((7 - fg) * 8 + bg);
1110 void madtty_set_handler(madtty_t *t, madtty_handler_t handler)
1112 t->handler = handler;
1115 void madtty_set_data(madtty_t *t, void *data)
1120 void *madtty_get_data(madtty_t *t)
1125 unsigned madtty_cursor(madtty_t *t)