/* * TTY handling for QEmacs * * Copyright (c) 2000,2001 Fabrice Bellard. * Copyright (c) 2002-2008 Charlie Gordon. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include #include #include #include #include #include #include #include "qe.h" typedef unsigned int TTYChar; #define TTYCHAR(ch,fg,bg) ((ch) | ((fg) << 16) | ((bg) << 24)) #define TTYCHAR_GETCH(cc) ((cc) & 0xFFFF) #define TTYCHAR_GETFG(cc) (((cc) >> 16) & 0xFF) #define TTYCHAR_GETBG(cc) (((cc) >> 24) & 0xFF) #define TTYCHAR_DEFAULT TTYCHAR(' ', 0, 0) #if defined(__GNUC__) && !defined(CONFIG_CYGWIN) # define TTY_PUTC(c,f) putc_unlocked(c, f) # define TTY_FWRITE(b,s,n,f) fwrite_unlocked(b, s, n, f) # define TTY_FPRINTF fprintf static inline void TTY_FPUTS(const char *s, FILE *fp) { TTY_FWRITE(s, 1, strlen(s), fp); } #else # define TTY_PUTC(c,f) putc(c, f) # define TTY_FWRITE(b,s,n,f) fwrite(b, s, n, f) # define TTY_FPRINTF fprintf # define TTY_FPUTS fputs #endif enum InputState { IS_NORM, IS_ESC, IS_CSI, IS_CSI2, IS_ESC2, }; enum TermCode { TERM_UNKNOWN = 0, TERM_ANSI, TERM_VT100, TERM_XTERM, TERM_LINUX, TERM_CYGWIN, }; typedef struct TTYState { TTYChar *screen; int screen_size; unsigned char *line_updated; struct termios oldtty; int cursor_x, cursor_y; /* input handling */ enum InputState input_state; int input_param; int utf8_state; int utf8_index; unsigned char buf[10]; char *term_name; enum TermCode term_code; int term_flags; #define KBS_CONTROL_H 1 } TTYState; static void tty_resize(int sig); static void tty_term_exit(void); static void tty_read_handler(void *opaque); static struct TTYState tty_state; static QEditScreen *tty_screen; static int tty_term_probe(void) { return 1; } static int tty_term_init(QEditScreen *s, __unused__ int w, __unused__ int h) { TTYState *ts; struct termios tty; struct sigaction sig; s->STDIN = stdin; s->STDOUT = stdout; tty_screen = s; ts = &tty_state; s->private = ts; s->media = CSS_MEDIA_TTY; /* Derive some settings from the TERM environment variable */ tty_state.term_code = TERM_UNKNOWN; tty_state.term_flags = 0; tty_state.term_name = getenv("TERM"); if (tty_state.term_name) { /* linux and xterm -> kbs=\177 * ansi cygwin vt100 -> kbs=^H */ if (strstart(tty_state.term_name, "ansi", NULL)) { tty_state.term_code = TERM_ANSI; tty_state.term_flags = KBS_CONTROL_H; } else if (strstart(tty_state.term_name, "vt100", NULL)) { tty_state.term_code = TERM_VT100; tty_state.term_flags = KBS_CONTROL_H; } else if (strstart(tty_state.term_name, "xterm", NULL)) { tty_state.term_code = TERM_XTERM; } else if (strstart(tty_state.term_name, "linux", NULL)) { tty_state.term_code = TERM_LINUX; } else if (strstart(tty_state.term_name, "cygwin", NULL)) { tty_state.term_code = TERM_CYGWIN; tty_state.term_flags = KBS_CONTROL_H; } } tcgetattr(fileno(s->STDIN), &tty); ts->oldtty = tty; tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |INLCR|IGNCR|ICRNL|IXON); tty.c_oflag |= OPOST; tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); tty.c_cflag &= ~(CSIZE|PARENB); tty.c_cflag |= CS8; tty.c_cc[VMIN] = 1; tty.c_cc[VTIME] = 0; tcsetattr(fileno(s->STDIN), TCSANOW, &tty); /* First switch to full screen mode */ #if 0 printf("\033[?1048h\033[?1047h" /* enable cup */ "\033)0\033(B" /* select character sets in block 0 and 1 */ "\017"); /* shift out */ #else TTY_FPRINTF(s->STDOUT, "\033[?1049h" /* enter_ca_mode */ "\033[m\033(B" /* exit_attribute_mode */ "\033[4l" /* exit_insert_mode */ "\033[?7h" /* enter_am_mode */ "\033[39;49m" /* orig_pair */ "\033[?1h\033=" /* keypad_xmit */ ); #endif s->charset = &charset_vt100; /* test UTF8 support by looking at the cursor position (idea from Ricardas Cepas ). Since uClibc actually tests to ensure that the format string is a valid multibyte sequence in the current locale (ANSI/ISO C99), use a format specifier of %s to avoid printf() failing with EILSEQ. */ /* CG: Should also have a command line switch */ if (tty_state.term_code != TERM_CYGWIN) { int y, x, n; /* ^X ^Z ^M \170101 */ //printf("%s", "\030\032" "\r\xEF\x81\x81" "\033[6n\033D"); /* Just print utf-8 encoding for eacute and check cursor position */ TTY_FPRINTF(s->STDOUT, "%s", "\030\032" "\r\xC3\xA9" "\033[6n\033D"); fflush(s->STDOUT); n = fscanf(s->STDIN, "\033[%u;%u", &y, &x); /* get cursor position */ TTY_FPRINTF(s->STDOUT, "\r \r"); /* go back, erase 3 chars */ if (n == 2 && x == 2) { s->charset = &charset_utf8; } } atexit(tty_term_exit); sig.sa_handler = tty_resize; sigemptyset(&sig.sa_mask); sig.sa_flags = 0; sigaction(SIGWINCH, &sig, NULL); fcntl(fileno(s->STDIN), F_SETFL, O_NONBLOCK); /* If stdout is to a pty, make sure we aren't in nonblocking mode. * Otherwise, the printf()s in term_flush() can fail with EAGAIN, * causing repaint errors when running in an xterm or in a screen * session. */ fcntl(fileno(s->STDOUT), F_SETFL, 0); set_read_handler(fileno(s->STDIN), tty_read_handler, s); tty_resize(0); if (tty_state.term_flags & KBS_CONTROL_H) { do_toggle_control_h(NULL, 1); } return 0; } static void tty_term_close(QEditScreen *s) { fcntl(fileno(s->STDIN), F_SETFL, 0); #if 0 /* go to the last line */ printf("\033[%d;%dH\033[m\033[K" "\033[?1047l\033[?1048l", /* disable cup */ s->height, 1); #else /* go to last line and clear it */ TTY_FPRINTF(s->STDOUT, "\033[%d;%dH\033[m\033[K", s->height, 1); TTY_FPRINTF(s->STDOUT, "\033[?1049l" /* exit_ca_mode */ "\r" /* return */ "\033[?1l\033>" /* keypad_local */ "\r" /* return */ ); #endif fflush(s->STDOUT); } static void tty_term_exit(void) { QEditScreen *s = tty_screen; TTYState *ts = s->private; tcsetattr(fileno(s->STDIN), TCSANOW, &ts->oldtty); } static void tty_resize(__unused__ int sig) { QEditScreen *s = tty_screen; TTYState *ts = s->private; struct winsize ws; int i, count, size; TTYChar tc; s->width = 80; s->height = 24; if (ioctl(fileno(s->STDIN), TIOCGWINSZ, &ws) == 0) { s->width = ws.ws_col; s->height = ws.ws_row; if (s->width > MAX_SCREEN_WIDTH) s->width = MAX_SCREEN_WIDTH; if (s->height < 3) s->height = 3; } count = s->width * s->height; size = count * sizeof(TTYChar); /* screen buffer + shadow buffer + extra slot for loop guard */ qe_realloc(&ts->screen, size * 2 + 1); qe_realloc(&ts->line_updated, s->height); ts->screen_size = count; /* Erase shadow buffer to impossible value */ memset(ts->screen + count, 0xFF, size); /* Fill screen buffer with black spaces */ tc = TTYCHAR_DEFAULT; for (i = 0; i < count; i++) { ts->screen[i] = tc; } /* All rows need refresh */ memset(ts->line_updated, 1, s->height); s->clip_x1 = 0; s->clip_y1 = 0; s->clip_x2 = s->width; s->clip_y2 = s->height; } static void tty_term_invalidate(QEditScreen *s) { tty_resize(0); } static void tty_term_cursor_at(QEditScreen *s, int x1, int y1, __unused__ int w, __unused__ int h) { TTYState *ts = s->private; ts->cursor_x = x1; ts->cursor_y = y1; } static int tty_term_is_user_input_pending(QEditScreen *s) { fd_set rfds; struct timeval tv; tv.tv_sec = 0; tv.tv_usec = 0; FD_ZERO(&rfds); FD_SET(fileno(s->STDIN), &rfds); if (select(fileno(s->STDIN) + 1, &rfds, NULL, NULL, &tv) > 0) return 1; else return 0; } static int const csi_lookup[] = { KEY_NONE, /* 0 */ KEY_HOME, /* 1 */ KEY_INSERT, /* 2 */ KEY_DELETE, /* 3 */ KEY_END, /* 4 */ KEY_PAGEUP, /* 5 */ KEY_PAGEDOWN, /* 6 */ KEY_NONE, /* 7 */ KEY_NONE, /* 8 */ KEY_NONE, /* 9 */ KEY_NONE, /* 10 */ KEY_F1, /* 11 */ KEY_F2, /* 12 */ KEY_F3, /* 13 */ KEY_F4, /* 14 */ KEY_F5, /* 15 */ KEY_NONE, /* 16 */ KEY_F6, /* 17 */ KEY_F7, /* 18 */ KEY_F8, /* 19 */ KEY_F9, /* 20 */ KEY_F10, /* 21 */ KEY_NONE, /* 22 */ KEY_F11, /* 23 */ KEY_F12, /* 24 */ KEY_F13, /* 25 */ KEY_F14, /* 26 */ KEY_NONE, /* 27 */ KEY_F15, /* 28 */ KEY_F16, /* 29 */ KEY_NONE, /* 30 */ KEY_F17, /* 31 */ KEY_F18, /* 32 */ KEY_F19, /* 33 */ KEY_F20, /* 34 */ }; static void tty_read_handler(void *opaque) { QEditScreen *s = opaque; QEmacsState *qs = &qe_state; TTYState *ts = s->private; int ch; QEEvent ev1, *ev = &ev1; if (read(fileno(s->STDIN), ts->buf + ts->utf8_index, 1) != 1) return; if (qs->trace_buffer && qs->active_window && qs->active_window->b != qs->trace_buffer) { eb_trace_bytes(ts->buf + ts->utf8_index, 1, EB_TRACE_TTY); } /* charset handling */ if (s->charset == &charset_utf8) { if (ts->utf8_state == 0) { const char *p; p = (const char *)ts->buf; ch = utf8_decode(&p); } else { ts->utf8_state = utf8_length[ts->buf[0]] - 1; ts->utf8_index = 0; return; } } else { ch = ts->buf[0]; } switch (ts->input_state) { case IS_NORM: if (ch == '\033') ts->input_state = IS_ESC; else goto the_end; break; case IS_ESC: if (ch == '\033') { /* cygwin A-right transmit ESC ESC[C ... */ goto the_end; } if (ch == '[') { ts->input_state = IS_CSI; ts->input_param = 0; } else if (ch == 'O') { ts->input_state = IS_ESC2; } else { ch = KEY_META(ch); ts->input_state = IS_NORM; goto the_end; } break; case IS_CSI: if (qe_isdigit(ch)) { ts->input_param = ts->input_param * 10 + ch - '0'; break; } ts->input_state = IS_NORM; switch (ch) { case '[': ts->input_state = IS_CSI2; break; case '~': if (ts->input_param < countof(csi_lookup)) { ch = csi_lookup[ts->input_param]; goto the_end; } break; /* All these for ansi|cygwin */ case 'A': ch = KEY_UP; goto the_end; // kcuu1 case 'B': ch = KEY_DOWN; goto the_end; // kcud1 case 'C': ch = KEY_RIGHT; goto the_end; // kcuf1 case 'D': ch = KEY_LEFT; goto the_end; // kcub1 case 'F': ch = KEY_END; goto the_end; // kend //case 'G': ch = KEY_CENTER; goto the_end; // kb2 case 'H': ch = KEY_HOME; goto the_end; // khome case 'L': ch = KEY_INSERT; goto the_end; // kich1 //case 'M': ch = KEY_MOUSE; goto the_end; // kmous case 'Z': ch = KEY_SHIFT_TAB; goto the_end; // kcbt default: #if 0 /* xterm CTRL-arrows */ if (ts->input_param == 5) { switch (ch) { case 'A': ch = KEY_CTRL_UP; goto the_end; case 'B': ch = KEY_CTRL_DOWN; goto the_end; case 'C': ch = KEY_CTRL_RIGHT; goto the_end; case 'D': ch = KEY_CTRL_LEFT; goto the_end; } } #endif break; } break; case IS_CSI2: /* cygwin/linux terminal */ ts->input_state = IS_NORM; switch (ch) { case 'A': ch = KEY_F1; goto the_end; case 'B': ch = KEY_F2; goto the_end; case 'C': ch = KEY_F3; goto the_end; case 'D': ch = KEY_F4; goto the_end; case 'E': ch = KEY_F5; goto the_end; } break; case IS_ESC2: // "\EO" /* xterm/vt100 fn */ ts->input_state = IS_NORM; switch (ch) { case 'A': ch = KEY_UP; goto the_end; case 'B': ch = KEY_DOWN; goto the_end; case 'C': ch = KEY_RIGHT; goto the_end; case 'D': ch = KEY_LEFT; goto the_end; case 'P': ch = KEY_F1; goto the_end; case 'Q': ch = KEY_F2; goto the_end; case 'R': ch = KEY_F3; goto the_end; case 'S': ch = KEY_F4; goto the_end; case 't': ch = KEY_F5; goto the_end; case 'u': ch = KEY_F6; goto the_end; case 'v': ch = KEY_F7; goto the_end; case 'l': ch = KEY_F8; goto the_end; case 'w': ch = KEY_F9; goto the_end; case 'x': ch = KEY_F10; goto the_end; } break; the_end: ev->key_event.type = QE_KEY_EVENT; ev->key_event.key = ch; qe_handle_event(ev); break; } } static inline int color_dist(unsigned int c1, unsigned c2) { return (abs( (c1 & 0xff) - (c2 & 0xff)) + 2 * abs( ((c1 >> 8) & 0xff) - ((c2 >> 8) & 0xff)) + abs( ((c1 >> 16) & 0xff) - ((c2 >> 16) & 0xff))); } unsigned int const tty_bg_colors[8] = { QERGB(0x00, 0x00, 0x00), QERGB(0xff, 0x00, 0x00), QERGB(0x00, 0xff, 0x00), QERGB(0xff, 0xff, 0x00), QERGB(0x00, 0x00, 0xff), QERGB(0xff, 0x00, 0xff), QERGB(0x00, 0xff, 0xff), QERGB(0xff, 0xff, 0xff), }; unsigned int const tty_fg_colors[16] = { QERGB(0x00, 0x00, 0x00), QERGB(0xbb, 0x00, 0x00), QERGB(0x00, 0xbb, 0x00), QERGB(0xbb, 0xbb, 0x00), QERGB(0x00, 0x00, 0xbb), QERGB(0xbb, 0x00, 0xbb), QERGB(0x00, 0xbb, 0xbb), QERGB(0xbb, 0xbb, 0xbb), QERGB(0x55, 0x55, 0x55), QERGB(0xff, 0x55, 0x55), QERGB(0x55, 0xff, 0x55), QERGB(0xff, 0xff, 0x55), QERGB(0x55, 0x55, 0xff), QERGB(0xff, 0x55, 0xff), QERGB(0x55, 0xff, 0xff), QERGB(0xff, 0xff, 0xff), }; static int get_tty_color(QEColor color, unsigned int const *colors, int count) { int i, cmin, dmin, d; dmin = INT_MAX; cmin = 0; for (i = 0; i < count; i++) { d = color_dist(color, colors[i]); if (d < dmin) { cmin = i; dmin = d; } } return cmin; } static void tty_term_fill_rectangle(QEditScreen *s, int x1, int y1, int w, int h, QEColor color) { TTYState *ts = s->private; int x2 = x1 + w; int y2 = y1 + h; int x, y; TTYChar *ptr; int wrap = s->width - w; int bgcolor; ptr = ts->screen + y1 * s->width + x1; if (color == QECOLOR_XOR) { for (y = y1; y < y2; y++) { ts->line_updated[y] = 1; for (x = x1; x < x2; x++) { *ptr ^= TTYCHAR(0, 7, 7); ptr++; } ptr += wrap; } } else { bgcolor = get_tty_color(color, tty_bg_colors, countof(tty_bg_colors)); for (y = y1; y < y2; y++) { ts->line_updated[y] = 1; for (x = x1; x < x2; x++) { *ptr = TTYCHAR(' ', 7, bgcolor); ptr++; } ptr += wrap; } } } /* XXX: could alloc font in wrapper */ static QEFont *tty_term_open_font(__unused__ QEditScreen *s, __unused__ int style, __unused__ int size) { QEFont *font; font = qe_malloc(QEFont); if (!font) return NULL; font->ascent = 0; font->descent = 1; font->private = NULL; return font; } static void tty_term_close_font(__unused__ QEditScreen *s, QEFont *font) { qe_free(&font); } /* * Modified implementation of wcwidth() from Markus Kuhn. We do not * handle non spacing and enclosing combining characters and control * chars. */ static int tty_term_glyph_width(__unused__ QEditScreen *s, unsigned int ucs) { /* fast test for majority of non-wide scripts */ if (ucs < 0x900) return 1; return 1 + ((ucs >= 0x1100 && ucs <= 0x115f) || /* Hangul Jamo */ (ucs >= 0x2e80 && ucs <= 0xa4cf && (ucs & ~0x0011) != 0x300a && ucs != 0x303f) || /* CJK ... Yi */ (ucs >= 0xac00 && ucs <= 0xd7a3) || /* Hangul Syllables */ (ucs >= 0xf900 && ucs <= 0xfaff) || /* CJK Compatibility Ideographs */ (ucs >= 0xfe30 && ucs <= 0xfe6f) || /* CJK Compatibility Forms */ (ucs >= 0xff00 && ucs <= 0xff5f) || /* Fullwidth Forms */ (ucs >= 0xffe0 && ucs <= 0xffe6)); } static void tty_term_text_metrics(QEditScreen *s, __unused__ QEFont *font, QECharMetrics *metrics, const unsigned int *str, int len) { int i, x; metrics->font_ascent = font->ascent; metrics->font_descent = font->descent; x = 0; for (i = 0; i < len; i++) x += tty_term_glyph_width(s, str[i]); metrics->width = x; } static void tty_term_draw_text(QEditScreen *s, __unused__ QEFont *font, int x, int y, const unsigned int *str, int len, QEColor color) { TTYState *ts = s->private; TTYChar *ptr; int fgcolor, w, n; unsigned int cc; if (y < s->clip_y1 || y >= s->clip_y2 || x >= s->clip_x2) return; ts->line_updated[y] = 1; fgcolor = get_tty_color(color, tty_fg_colors, countof(tty_fg_colors)); ptr = ts->screen + y * s->width; if (x < s->clip_x1) { ptr += s->clip_x1; /* left clip */ while (len > 0) { cc = *str++; len--; w = tty_term_glyph_width(s, cc); x += w; if (x >= s->clip_x1) { /* now we are on the screen. need to put spaces for wide chars */ n = x; if (s->clip_x2 < n) n = s->clip_x2; n -= s->clip_x1; for (; n > 0; n--) { *ptr = TTYCHAR(' ', fgcolor, TTYCHAR_GETBG(*ptr)); ptr++; } break; } } } else { ptr += x; } for (; len > 0; len--) { cc = *str++; w = tty_term_glyph_width(s, cc); /* XXX: would need to put spaces for wide chars */ if (x + w > s->clip_x2) break; *ptr = TTYCHAR(cc, fgcolor, TTYCHAR_GETBG(*ptr)); ptr++; n = w - 1; while (n > 0) { *ptr = TTYCHAR(0xFFFFF, fgcolor, TTYCHAR_GETBG(*ptr)); ptr++; n--; } x += w; } } static void tty_term_set_clip(__unused__ QEditScreen *s, __unused__ int x, __unused__ int y, __unused__ int w, __unused__ int h) { } static void tty_term_flush(QEditScreen *s) { TTYState *ts = s->private; TTYChar *ptr, *ptr1, *ptr2, cc; int y, shadow, ch, bgcolor, fgcolor, shifted, nc; char buf[10]; bgcolor = -1; fgcolor = -1; shifted = 0; /* CG: Should optimize output by computing it in a temporary buffer * and flushing it in one call to fwrite() */ shadow = ts->screen_size; /* We cannot print anything on the bottom right screen cell, * pretend it's OK: */ ts->screen[shadow - 1] = ts->screen[2 * shadow - 1]; for (y = 0; y < s->height; y++) { if (ts->line_updated[y]) { ts->line_updated[y] = 0; ptr = ptr1 = ts->screen + y * s->width; ptr2 = ptr1 + s->width; /* make sure the loop stops */ cc = ptr2[shadow]; ptr2[shadow] = ptr2[0] + 1; /* quickly loop over one row */ while (ptr1[0] == ptr1[shadow]) { ptr1++; } ptr2[shadow] = cc; /* ptr1 points to first difference on row */ /* scan for last difference on row: */ while (ptr2 > ptr1 && ptr2[-1] == ptr2[shadow - 1]) { --ptr2; } if (ptr1 == ptr2) continue; TTY_FPRINTF(s->STDOUT, "\033[%d;%dH", y + 1, ptr1 - ptr + 1); /* CG: should scan for sequences of blanks */ while (ptr1 < ptr2) { cc = *ptr1; ptr1[shadow] = cc; ptr1++; ch = TTYCHAR_GETCH(cc); if (ch != 0xffff) { /* output attributes */ if ((fgcolor != (int)TTYCHAR_GETFG(cc) && ch != ' ') || (bgcolor != (int)TTYCHAR_GETBG(cc))) { fgcolor = TTYCHAR_GETFG(cc); bgcolor = TTYCHAR_GETBG(cc); TTY_FPRINTF(s->STDOUT, "\033[%dm", (fgcolor > 7) ? 1 : 22); TTY_FPRINTF(s->STDOUT, "\033[%d;%dm", 30 + (fgcolor & 7), 40 + bgcolor); } /* do not display escape codes or invalid codes */ if (ch < 32 || ch == 127) { if (shifted) { TTY_FPUTS("\033(B", s->STDOUT); shifted = 0; } TTY_PUTC('.', s->STDOUT); } else if (ch < 127) { if (shifted) { TTY_FPUTS("\033(B", s->STDOUT); shifted = 0; } TTY_PUTC(ch, s->STDOUT); } else if (ch < 128 + 32) { /* Kludge for linedrawing chars */ if (!shifted) { TTY_FPUTS("\033(0", s->STDOUT); shifted = 1; } TTY_PUTC(ch - 32, s->STDOUT); } else { // was in qemacs-0.3.1.g2.gw/tty.c: // if (cc == 0x2500) // printf("\016x\017"); /* s->charset is either vt100 or utf-8 */ if (shifted) { TTY_FPUTS("\033(B", s->STDOUT); shifted = 0; } //if (s->charset == CHARSET_LATIN1) { // if (cc < 256) { // buf[0] = cc; // buf[1] = '\0'; // } else { // buf[0] = 0xBF; /* upside down question */ // buf[1] = '\0'; // if (tty_term_glyph_width(s, NULL, cc) == 2) { // buf[1] = '?'; // buf[2] = '\0'; // } // } //} else { nc = unicode_to_charset(buf, cc, s->charset); if (nc == 1) { TTY_PUTC(*(u8 *)buf, s->STDOUT); } else { TTY_FWRITE(buf, 1, nc, s->STDOUT); } } } } } if (shifted) { TTY_FPUTS("\033(B", s->STDOUT); shifted = 0; } } } TTY_FPRINTF(s->STDOUT, "\033[%d;%dH", ts->cursor_y + 1, ts->cursor_x + 1); fflush(s->STDOUT); } static QEDisplay tty_dpy = { "vt100", tty_term_probe, tty_term_init, tty_term_close, tty_term_flush, tty_term_is_user_input_pending, tty_term_fill_rectangle, tty_term_open_font, tty_term_close_font, tty_term_text_metrics, tty_term_draw_text, tty_term_set_clip, NULL, /* dpy_selection_activate */ NULL, /* dpy_selection_request */ tty_term_invalidate, tty_term_cursor_at, NULL, /* dpy_bmp_alloc */ NULL, /* dpy_bmp_free */ NULL, /* dpy_bmp_draw */ NULL, /* dpy_bmp_lock */ NULL, /* dpy_bmp_unlock */ NULL, /* dpy_full_screen */ NULL, /* next */ }; static int tty_init(void) { return qe_register_display(&tty_dpy); } qe_module_init(tty_init);