| 1 | /* Terminal control module for terminals described by TERMCAP |
| 2 | Copyright (C) 1985-1987, 1993-1995, 1998, 2000-2011 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software: you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation, either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | GNU Emacs is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | /* New redisplay, TTY faces by Gerd Moellmann <gerd@gnu.org>. */ |
| 21 | |
| 22 | #include <config.h> |
| 23 | #include <stdio.h> |
| 24 | #include <ctype.h> |
| 25 | #include <errno.h> |
| 26 | #include <sys/file.h> |
| 27 | #include <unistd.h> |
| 28 | #include <signal.h> |
| 29 | #include <stdarg.h> |
| 30 | #include <setjmp.h> |
| 31 | |
| 32 | #include "lisp.h" |
| 33 | #include "termchar.h" |
| 34 | #include "termopts.h" |
| 35 | #include "tparam.h" |
| 36 | #include "buffer.h" |
| 37 | #include "character.h" |
| 38 | #include "charset.h" |
| 39 | #include "coding.h" |
| 40 | #include "composite.h" |
| 41 | #include "keyboard.h" |
| 42 | #include "frame.h" |
| 43 | #include "disptab.h" |
| 44 | #include "termhooks.h" |
| 45 | #include "dispextern.h" |
| 46 | #include "window.h" |
| 47 | #include "keymap.h" |
| 48 | #include "blockinput.h" |
| 49 | #include "syssignal.h" |
| 50 | #include "systty.h" |
| 51 | #include "intervals.h" |
| 52 | #ifdef MSDOS |
| 53 | #include "msdos.h" |
| 54 | static int been_here = -1; |
| 55 | #endif |
| 56 | |
| 57 | #include "cm.h" |
| 58 | #ifdef HAVE_X_WINDOWS |
| 59 | #include "xterm.h" |
| 60 | #endif |
| 61 | |
| 62 | #ifndef O_RDWR |
| 63 | #define O_RDWR 2 |
| 64 | #endif |
| 65 | |
| 66 | #ifndef O_NOCTTY |
| 67 | #define O_NOCTTY 0 |
| 68 | #endif |
| 69 | |
| 70 | /* The name of the default console device. */ |
| 71 | #ifdef WINDOWSNT |
| 72 | #define DEV_TTY "CONOUT$" |
| 73 | #else |
| 74 | #define DEV_TTY "/dev/tty" |
| 75 | #endif |
| 76 | |
| 77 | static void tty_set_scroll_region (struct frame *f, int start, int stop); |
| 78 | static void turn_on_face (struct frame *, int face_id); |
| 79 | static void turn_off_face (struct frame *, int face_id); |
| 80 | static void tty_show_cursor (struct tty_display_info *); |
| 81 | static void tty_hide_cursor (struct tty_display_info *); |
| 82 | static void tty_background_highlight (struct tty_display_info *tty); |
| 83 | static void clear_tty_hooks (struct terminal *terminal); |
| 84 | static void set_tty_hooks (struct terminal *terminal); |
| 85 | static void dissociate_if_controlling_tty (int fd); |
| 86 | static void delete_tty (struct terminal *); |
| 87 | static void maybe_fatal (int must_succeed, struct terminal *terminal, |
| 88 | const char *str1, const char *str2, ...) |
| 89 | NO_RETURN ATTRIBUTE_FORMAT_PRINTF (3, 5) ATTRIBUTE_FORMAT_PRINTF (4, 5); |
| 90 | static void vfatal (const char *str, va_list ap) |
| 91 | NO_RETURN ATTRIBUTE_FORMAT_PRINTF (1, 0); |
| 92 | |
| 93 | |
| 94 | #define OUTPUT(tty, a) \ |
| 95 | emacs_tputs ((tty), a, \ |
| 96 | (int) (FRAME_LINES (XFRAME (selected_frame)) \ |
| 97 | - curY (tty)), \ |
| 98 | cmputc) |
| 99 | |
| 100 | #define OUTPUT1(tty, a) emacs_tputs ((tty), a, 1, cmputc) |
| 101 | #define OUTPUTL(tty, a, lines) emacs_tputs ((tty), a, lines, cmputc) |
| 102 | |
| 103 | #define OUTPUT_IF(tty, a) \ |
| 104 | do { \ |
| 105 | if (a) \ |
| 106 | OUTPUT (tty, a); \ |
| 107 | } while (0) |
| 108 | |
| 109 | #define OUTPUT1_IF(tty, a) do { if (a) emacs_tputs ((tty), a, 1, cmputc); } while (0) |
| 110 | |
| 111 | /* Display space properties */ |
| 112 | |
| 113 | /* Chain of all tty device parameters. */ |
| 114 | struct tty_display_info *tty_list; |
| 115 | |
| 116 | /* Meaning of bits in no_color_video. Each bit set means that the |
| 117 | corresponding attribute cannot be combined with colors. */ |
| 118 | |
| 119 | enum no_color_bit |
| 120 | { |
| 121 | NC_STANDOUT = 1 << 0, |
| 122 | NC_UNDERLINE = 1 << 1, |
| 123 | NC_REVERSE = 1 << 2, |
| 124 | NC_BLINK = 1 << 3, |
| 125 | NC_DIM = 1 << 4, |
| 126 | NC_BOLD = 1 << 5, |
| 127 | NC_INVIS = 1 << 6, |
| 128 | NC_PROTECT = 1 << 7, |
| 129 | NC_ALT_CHARSET = 1 << 8 |
| 130 | }; |
| 131 | |
| 132 | /* internal state */ |
| 133 | |
| 134 | /* The largest frame width in any call to calculate_costs. */ |
| 135 | |
| 136 | int max_frame_cols; |
| 137 | |
| 138 | /* The largest frame height in any call to calculate_costs. */ |
| 139 | |
| 140 | int max_frame_lines; |
| 141 | |
| 142 | /* Non-zero if we have dropped our controlling tty and therefore |
| 143 | should not open a frame on stdout. */ |
| 144 | static int no_controlling_tty; |
| 145 | |
| 146 | \f |
| 147 | |
| 148 | #ifdef HAVE_GPM |
| 149 | #include <sys/fcntl.h> |
| 150 | |
| 151 | /* The device for which we have enabled gpm support (or NULL). */ |
| 152 | struct tty_display_info *gpm_tty = NULL; |
| 153 | |
| 154 | /* Last recorded mouse coordinates. */ |
| 155 | static int last_mouse_x, last_mouse_y; |
| 156 | #endif /* HAVE_GPM */ |
| 157 | |
| 158 | /* Ring the bell on a tty. */ |
| 159 | |
| 160 | static void |
| 161 | tty_ring_bell (struct frame *f) |
| 162 | { |
| 163 | struct tty_display_info *tty = FRAME_TTY (f); |
| 164 | |
| 165 | if (tty->output) |
| 166 | { |
| 167 | OUTPUT (tty, (tty->TS_visible_bell && visible_bell |
| 168 | ? tty->TS_visible_bell |
| 169 | : tty->TS_bell)); |
| 170 | fflush (tty->output); |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | /* Set up termcap modes for Emacs. */ |
| 175 | |
| 176 | void |
| 177 | tty_set_terminal_modes (struct terminal *terminal) |
| 178 | { |
| 179 | struct tty_display_info *tty = terminal->display_info.tty; |
| 180 | |
| 181 | if (tty->output) |
| 182 | { |
| 183 | if (tty->TS_termcap_modes) |
| 184 | OUTPUT (tty, tty->TS_termcap_modes); |
| 185 | else |
| 186 | { |
| 187 | /* Output enough newlines to scroll all the old screen contents |
| 188 | off the screen, so it won't be overwritten and lost. */ |
| 189 | int i; |
| 190 | current_tty = tty; |
| 191 | for (i = 0; i < FRAME_LINES (XFRAME (selected_frame)); i++) |
| 192 | cmputc ('\n'); |
| 193 | } |
| 194 | |
| 195 | OUTPUT_IF (tty, visible_cursor ? tty->TS_cursor_visible : tty->TS_cursor_normal); |
| 196 | OUTPUT_IF (tty, tty->TS_keypad_mode); |
| 197 | losecursor (tty); |
| 198 | fflush (tty->output); |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | /* Reset termcap modes before exiting Emacs. */ |
| 203 | |
| 204 | void |
| 205 | tty_reset_terminal_modes (struct terminal *terminal) |
| 206 | { |
| 207 | struct tty_display_info *tty = terminal->display_info.tty; |
| 208 | |
| 209 | if (tty->output) |
| 210 | { |
| 211 | tty_turn_off_highlight (tty); |
| 212 | tty_turn_off_insert (tty); |
| 213 | OUTPUT_IF (tty, tty->TS_end_keypad_mode); |
| 214 | OUTPUT_IF (tty, tty->TS_cursor_normal); |
| 215 | OUTPUT_IF (tty, tty->TS_end_termcap_modes); |
| 216 | OUTPUT_IF (tty, tty->TS_orig_pair); |
| 217 | /* Output raw CR so kernel can track the cursor hpos. */ |
| 218 | current_tty = tty; |
| 219 | cmputc ('\r'); |
| 220 | fflush (tty->output); |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | /* Flag the end of a display update on a termcap terminal. */ |
| 225 | |
| 226 | static void |
| 227 | tty_update_end (struct frame *f) |
| 228 | { |
| 229 | struct tty_display_info *tty = FRAME_TTY (f); |
| 230 | |
| 231 | if (!XWINDOW (selected_window)->cursor_off_p) |
| 232 | tty_show_cursor (tty); |
| 233 | tty_turn_off_insert (tty); |
| 234 | tty_background_highlight (tty); |
| 235 | } |
| 236 | |
| 237 | /* The implementation of set_terminal_window for termcap frames. */ |
| 238 | |
| 239 | static void |
| 240 | tty_set_terminal_window (struct frame *f, int size) |
| 241 | { |
| 242 | struct tty_display_info *tty = FRAME_TTY (f); |
| 243 | |
| 244 | tty->specified_window = size ? size : FRAME_LINES (f); |
| 245 | if (FRAME_SCROLL_REGION_OK (f)) |
| 246 | tty_set_scroll_region (f, 0, tty->specified_window); |
| 247 | } |
| 248 | |
| 249 | static void |
| 250 | tty_set_scroll_region (struct frame *f, int start, int stop) |
| 251 | { |
| 252 | char *buf; |
| 253 | struct tty_display_info *tty = FRAME_TTY (f); |
| 254 | |
| 255 | if (tty->TS_set_scroll_region) |
| 256 | buf = tparam (tty->TS_set_scroll_region, 0, 0, start, stop - 1, 0, 0); |
| 257 | else if (tty->TS_set_scroll_region_1) |
| 258 | buf = tparam (tty->TS_set_scroll_region_1, 0, 0, |
| 259 | FRAME_LINES (f), start, |
| 260 | FRAME_LINES (f) - stop, |
| 261 | FRAME_LINES (f)); |
| 262 | else |
| 263 | buf = tparam (tty->TS_set_window, 0, 0, start, 0, stop, FRAME_COLS (f)); |
| 264 | |
| 265 | OUTPUT (tty, buf); |
| 266 | xfree (buf); |
| 267 | losecursor (tty); |
| 268 | } |
| 269 | |
| 270 | \f |
| 271 | static void |
| 272 | tty_turn_on_insert (struct tty_display_info *tty) |
| 273 | { |
| 274 | if (!tty->insert_mode) |
| 275 | OUTPUT (tty, tty->TS_insert_mode); |
| 276 | tty->insert_mode = 1; |
| 277 | } |
| 278 | |
| 279 | void |
| 280 | tty_turn_off_insert (struct tty_display_info *tty) |
| 281 | { |
| 282 | if (tty->insert_mode) |
| 283 | OUTPUT (tty, tty->TS_end_insert_mode); |
| 284 | tty->insert_mode = 0; |
| 285 | } |
| 286 | \f |
| 287 | /* Handle highlighting. */ |
| 288 | |
| 289 | void |
| 290 | tty_turn_off_highlight (struct tty_display_info *tty) |
| 291 | { |
| 292 | if (tty->standout_mode) |
| 293 | OUTPUT_IF (tty, tty->TS_end_standout_mode); |
| 294 | tty->standout_mode = 0; |
| 295 | } |
| 296 | |
| 297 | static void |
| 298 | tty_turn_on_highlight (struct tty_display_info *tty) |
| 299 | { |
| 300 | if (!tty->standout_mode) |
| 301 | OUTPUT_IF (tty, tty->TS_standout_mode); |
| 302 | tty->standout_mode = 1; |
| 303 | } |
| 304 | |
| 305 | static void |
| 306 | tty_toggle_highlight (struct tty_display_info *tty) |
| 307 | { |
| 308 | if (tty->standout_mode) |
| 309 | tty_turn_off_highlight (tty); |
| 310 | else |
| 311 | tty_turn_on_highlight (tty); |
| 312 | } |
| 313 | |
| 314 | |
| 315 | /* Make cursor invisible. */ |
| 316 | |
| 317 | static void |
| 318 | tty_hide_cursor (struct tty_display_info *tty) |
| 319 | { |
| 320 | if (tty->cursor_hidden == 0) |
| 321 | { |
| 322 | tty->cursor_hidden = 1; |
| 323 | OUTPUT_IF (tty, tty->TS_cursor_invisible); |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | |
| 328 | /* Ensure that cursor is visible. */ |
| 329 | |
| 330 | static void |
| 331 | tty_show_cursor (struct tty_display_info *tty) |
| 332 | { |
| 333 | if (tty->cursor_hidden) |
| 334 | { |
| 335 | tty->cursor_hidden = 0; |
| 336 | OUTPUT_IF (tty, tty->TS_cursor_normal); |
| 337 | if (visible_cursor) |
| 338 | OUTPUT_IF (tty, tty->TS_cursor_visible); |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | |
| 343 | /* Set standout mode to the state it should be in for |
| 344 | empty space inside windows. What this is, |
| 345 | depends on the user option inverse-video. */ |
| 346 | |
| 347 | static void |
| 348 | tty_background_highlight (struct tty_display_info *tty) |
| 349 | { |
| 350 | if (inverse_video) |
| 351 | tty_turn_on_highlight (tty); |
| 352 | else |
| 353 | tty_turn_off_highlight (tty); |
| 354 | } |
| 355 | |
| 356 | /* Set standout mode to the mode specified for the text to be output. */ |
| 357 | |
| 358 | static void |
| 359 | tty_highlight_if_desired (struct tty_display_info *tty) |
| 360 | { |
| 361 | if (inverse_video) |
| 362 | tty_turn_on_highlight (tty); |
| 363 | else |
| 364 | tty_turn_off_highlight (tty); |
| 365 | } |
| 366 | \f |
| 367 | |
| 368 | /* Move cursor to row/column position VPOS/HPOS. HPOS/VPOS are |
| 369 | frame-relative coordinates. */ |
| 370 | |
| 371 | static void |
| 372 | tty_cursor_to (struct frame *f, int vpos, int hpos) |
| 373 | { |
| 374 | struct tty_display_info *tty = FRAME_TTY (f); |
| 375 | |
| 376 | /* Detect the case where we are called from reset_sys_modes |
| 377 | and the costs have never been calculated. Do nothing. */ |
| 378 | if (! tty->costs_set) |
| 379 | return; |
| 380 | |
| 381 | if (curY (tty) == vpos |
| 382 | && curX (tty) == hpos) |
| 383 | return; |
| 384 | if (!tty->TF_standout_motion) |
| 385 | tty_background_highlight (tty); |
| 386 | if (!tty->TF_insmode_motion) |
| 387 | tty_turn_off_insert (tty); |
| 388 | cmgoto (tty, vpos, hpos); |
| 389 | } |
| 390 | |
| 391 | /* Similar but don't take any account of the wasted characters. */ |
| 392 | |
| 393 | static void |
| 394 | tty_raw_cursor_to (struct frame *f, int row, int col) |
| 395 | { |
| 396 | struct tty_display_info *tty = FRAME_TTY (f); |
| 397 | |
| 398 | if (curY (tty) == row |
| 399 | && curX (tty) == col) |
| 400 | return; |
| 401 | if (!tty->TF_standout_motion) |
| 402 | tty_background_highlight (tty); |
| 403 | if (!tty->TF_insmode_motion) |
| 404 | tty_turn_off_insert (tty); |
| 405 | cmgoto (tty, row, col); |
| 406 | } |
| 407 | \f |
| 408 | /* Erase operations */ |
| 409 | |
| 410 | /* Clear from cursor to end of frame on a termcap device. */ |
| 411 | |
| 412 | static void |
| 413 | tty_clear_to_end (struct frame *f) |
| 414 | { |
| 415 | register int i; |
| 416 | struct tty_display_info *tty = FRAME_TTY (f); |
| 417 | |
| 418 | if (tty->TS_clr_to_bottom) |
| 419 | { |
| 420 | tty_background_highlight (tty); |
| 421 | OUTPUT (tty, tty->TS_clr_to_bottom); |
| 422 | } |
| 423 | else |
| 424 | { |
| 425 | for (i = curY (tty); i < FRAME_LINES (f); i++) |
| 426 | { |
| 427 | cursor_to (f, i, 0); |
| 428 | clear_end_of_line (f, FRAME_COLS (f)); |
| 429 | } |
| 430 | } |
| 431 | } |
| 432 | |
| 433 | /* Clear an entire termcap frame. */ |
| 434 | |
| 435 | static void |
| 436 | tty_clear_frame (struct frame *f) |
| 437 | { |
| 438 | struct tty_display_info *tty = FRAME_TTY (f); |
| 439 | |
| 440 | if (tty->TS_clr_frame) |
| 441 | { |
| 442 | tty_background_highlight (tty); |
| 443 | OUTPUT (tty, tty->TS_clr_frame); |
| 444 | cmat (tty, 0, 0); |
| 445 | } |
| 446 | else |
| 447 | { |
| 448 | cursor_to (f, 0, 0); |
| 449 | clear_to_end (f); |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | /* An implementation of clear_end_of_line for termcap frames. |
| 454 | |
| 455 | Note that the cursor may be moved, on terminals lacking a `ce' string. */ |
| 456 | |
| 457 | static void |
| 458 | tty_clear_end_of_line (struct frame *f, int first_unused_hpos) |
| 459 | { |
| 460 | register int i; |
| 461 | struct tty_display_info *tty = FRAME_TTY (f); |
| 462 | |
| 463 | /* Detect the case where we are called from reset_sys_modes |
| 464 | and the costs have never been calculated. Do nothing. */ |
| 465 | if (! tty->costs_set) |
| 466 | return; |
| 467 | |
| 468 | if (curX (tty) >= first_unused_hpos) |
| 469 | return; |
| 470 | tty_background_highlight (tty); |
| 471 | if (tty->TS_clr_line) |
| 472 | { |
| 473 | OUTPUT1 (tty, tty->TS_clr_line); |
| 474 | } |
| 475 | else |
| 476 | { /* have to do it the hard way */ |
| 477 | tty_turn_off_insert (tty); |
| 478 | |
| 479 | /* Do not write in last row last col with Auto-wrap on. */ |
| 480 | if (AutoWrap (tty) |
| 481 | && curY (tty) == FrameRows (tty) - 1 |
| 482 | && first_unused_hpos == FrameCols (tty)) |
| 483 | first_unused_hpos--; |
| 484 | |
| 485 | for (i = curX (tty); i < first_unused_hpos; i++) |
| 486 | { |
| 487 | if (tty->termscript) |
| 488 | fputc (' ', tty->termscript); |
| 489 | fputc (' ', tty->output); |
| 490 | } |
| 491 | cmplus (tty, first_unused_hpos - curX (tty)); |
| 492 | } |
| 493 | } |
| 494 | \f |
| 495 | /* Buffers to store the source and result of code conversion for terminal. */ |
| 496 | static unsigned char *encode_terminal_src; |
| 497 | static unsigned char *encode_terminal_dst; |
| 498 | /* Allocated sizes of the above buffers. */ |
| 499 | static int encode_terminal_src_size; |
| 500 | static int encode_terminal_dst_size; |
| 501 | |
| 502 | /* Encode SRC_LEN glyphs starting at SRC to terminal output codes. |
| 503 | Set CODING->produced to the byte-length of the resulting byte |
| 504 | sequence, and return a pointer to that byte sequence. */ |
| 505 | |
| 506 | unsigned char * |
| 507 | encode_terminal_code (struct glyph *src, int src_len, struct coding_system *coding) |
| 508 | { |
| 509 | struct glyph *src_end = src + src_len; |
| 510 | unsigned char *buf; |
| 511 | int nchars, nbytes, required; |
| 512 | register int tlen = GLYPH_TABLE_LENGTH; |
| 513 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; |
| 514 | Lisp_Object charset_list; |
| 515 | |
| 516 | /* Allocate sufficient size of buffer to store all characters in |
| 517 | multibyte-form. But, it may be enlarged on demand if |
| 518 | Vglyph_table contains a string or a composite glyph is |
| 519 | encountered. */ |
| 520 | required = MAX_MULTIBYTE_LENGTH * src_len; |
| 521 | if (encode_terminal_src_size < required) |
| 522 | { |
| 523 | if (encode_terminal_src) |
| 524 | encode_terminal_src = xrealloc (encode_terminal_src, required); |
| 525 | else |
| 526 | encode_terminal_src = xmalloc (required); |
| 527 | encode_terminal_src_size = required; |
| 528 | } |
| 529 | |
| 530 | charset_list = coding_charset_list (coding); |
| 531 | |
| 532 | buf = encode_terminal_src; |
| 533 | nchars = 0; |
| 534 | while (src < src_end) |
| 535 | { |
| 536 | if (src->type == COMPOSITE_GLYPH) |
| 537 | { |
| 538 | struct composition *cmp IF_LINT (= NULL); |
| 539 | Lisp_Object gstring IF_LINT (= Qnil); |
| 540 | int i; |
| 541 | |
| 542 | nbytes = buf - encode_terminal_src; |
| 543 | if (src->u.cmp.automatic) |
| 544 | { |
| 545 | gstring = composition_gstring_from_id (src->u.cmp.id); |
| 546 | required = src->slice.cmp.to + 1 - src->slice.cmp.from; |
| 547 | } |
| 548 | else |
| 549 | { |
| 550 | cmp = composition_table[src->u.cmp.id]; |
| 551 | required = MAX_MULTIBYTE_LENGTH * cmp->glyph_len; |
| 552 | } |
| 553 | |
| 554 | if (encode_terminal_src_size < nbytes + required) |
| 555 | { |
| 556 | encode_terminal_src_size = nbytes + required; |
| 557 | encode_terminal_src = xrealloc (encode_terminal_src, |
| 558 | encode_terminal_src_size); |
| 559 | buf = encode_terminal_src + nbytes; |
| 560 | } |
| 561 | |
| 562 | if (src->u.cmp.automatic) |
| 563 | for (i = src->slice.cmp.from; i <= src->slice.cmp.to; i++) |
| 564 | { |
| 565 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); |
| 566 | int c = LGLYPH_CHAR (g); |
| 567 | |
| 568 | if (! char_charset (c, charset_list, NULL)) |
| 569 | c = '?'; |
| 570 | buf += CHAR_STRING (c, buf); |
| 571 | nchars++; |
| 572 | } |
| 573 | else |
| 574 | for (i = 0; i < cmp->glyph_len; i++) |
| 575 | { |
| 576 | int c = COMPOSITION_GLYPH (cmp, i); |
| 577 | |
| 578 | if (c == '\t') |
| 579 | continue; |
| 580 | if (char_charset (c, charset_list, NULL)) |
| 581 | { |
| 582 | if (CHAR_WIDTH (c) == 0 |
| 583 | && i > 0 && COMPOSITION_GLYPH (cmp, i - 1) == '\t') |
| 584 | /* Should be left-padded */ |
| 585 | { |
| 586 | buf += CHAR_STRING (' ', buf); |
| 587 | nchars++; |
| 588 | } |
| 589 | } |
| 590 | else |
| 591 | c = '?'; |
| 592 | buf += CHAR_STRING (c, buf); |
| 593 | nchars++; |
| 594 | } |
| 595 | } |
| 596 | /* We must skip glyphs to be padded for a wide character. */ |
| 597 | else if (! CHAR_GLYPH_PADDING_P (*src)) |
| 598 | { |
| 599 | GLYPH g; |
| 600 | int c IF_LINT (= 0); |
| 601 | Lisp_Object string; |
| 602 | |
| 603 | string = Qnil; |
| 604 | SET_GLYPH_FROM_CHAR_GLYPH (g, src[0]); |
| 605 | |
| 606 | if (GLYPH_INVALID_P (g) || GLYPH_SIMPLE_P (tbase, tlen, g)) |
| 607 | { |
| 608 | /* This glyph doesn't have an entry in Vglyph_table. */ |
| 609 | c = src->u.ch; |
| 610 | } |
| 611 | else |
| 612 | { |
| 613 | /* This glyph has an entry in Vglyph_table, |
| 614 | so process any alias before testing for simpleness. */ |
| 615 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); |
| 616 | |
| 617 | if (GLYPH_SIMPLE_P (tbase, tlen, g)) |
| 618 | /* We set the multi-byte form of a character in G |
| 619 | (that should be an ASCII character) at WORKBUF. */ |
| 620 | c = GLYPH_CHAR (g); |
| 621 | else |
| 622 | /* We have a string in Vglyph_table. */ |
| 623 | string = tbase[GLYPH_CHAR (g)]; |
| 624 | } |
| 625 | |
| 626 | if (NILP (string)) |
| 627 | { |
| 628 | nbytes = buf - encode_terminal_src; |
| 629 | if (encode_terminal_src_size < nbytes + MAX_MULTIBYTE_LENGTH) |
| 630 | { |
| 631 | encode_terminal_src_size = nbytes + MAX_MULTIBYTE_LENGTH; |
| 632 | encode_terminal_src = xrealloc (encode_terminal_src, |
| 633 | encode_terminal_src_size); |
| 634 | buf = encode_terminal_src + nbytes; |
| 635 | } |
| 636 | if (CHAR_BYTE8_P (c) |
| 637 | || char_charset (c, charset_list, NULL)) |
| 638 | { |
| 639 | /* Store the multibyte form of C at BUF. */ |
| 640 | buf += CHAR_STRING (c, buf); |
| 641 | nchars++; |
| 642 | } |
| 643 | else |
| 644 | { |
| 645 | /* C is not encodable. */ |
| 646 | *buf++ = '?'; |
| 647 | nchars++; |
| 648 | while (src + 1 < src_end && CHAR_GLYPH_PADDING_P (src[1])) |
| 649 | { |
| 650 | *buf++ = '?'; |
| 651 | nchars++; |
| 652 | src++; |
| 653 | } |
| 654 | } |
| 655 | } |
| 656 | else |
| 657 | { |
| 658 | if (! STRING_MULTIBYTE (string)) |
| 659 | string = string_to_multibyte (string); |
| 660 | nbytes = buf - encode_terminal_src; |
| 661 | if (encode_terminal_src_size < nbytes + SBYTES (string)) |
| 662 | { |
| 663 | encode_terminal_src_size = nbytes + SBYTES (string); |
| 664 | encode_terminal_src = xrealloc (encode_terminal_src, |
| 665 | encode_terminal_src_size); |
| 666 | buf = encode_terminal_src + nbytes; |
| 667 | } |
| 668 | memcpy (buf, SDATA (string), SBYTES (string)); |
| 669 | buf += SBYTES (string); |
| 670 | nchars += SCHARS (string); |
| 671 | } |
| 672 | } |
| 673 | src++; |
| 674 | } |
| 675 | |
| 676 | if (nchars == 0) |
| 677 | { |
| 678 | coding->produced = 0; |
| 679 | return NULL; |
| 680 | } |
| 681 | |
| 682 | nbytes = buf - encode_terminal_src; |
| 683 | coding->source = encode_terminal_src; |
| 684 | if (encode_terminal_dst_size == 0) |
| 685 | { |
| 686 | encode_terminal_dst_size = encode_terminal_src_size; |
| 687 | if (encode_terminal_dst) |
| 688 | encode_terminal_dst = xrealloc (encode_terminal_dst, |
| 689 | encode_terminal_dst_size); |
| 690 | else |
| 691 | encode_terminal_dst = xmalloc (encode_terminal_dst_size); |
| 692 | } |
| 693 | coding->destination = encode_terminal_dst; |
| 694 | coding->dst_bytes = encode_terminal_dst_size; |
| 695 | encode_coding_object (coding, Qnil, 0, 0, nchars, nbytes, Qnil); |
| 696 | /* coding->destination may have been reallocated. */ |
| 697 | encode_terminal_dst = coding->destination; |
| 698 | encode_terminal_dst_size = coding->dst_bytes; |
| 699 | |
| 700 | return (encode_terminal_dst); |
| 701 | } |
| 702 | |
| 703 | |
| 704 | |
| 705 | /* An implementation of write_glyphs for termcap frames. */ |
| 706 | |
| 707 | static void |
| 708 | tty_write_glyphs (struct frame *f, struct glyph *string, int len) |
| 709 | { |
| 710 | unsigned char *conversion_buffer; |
| 711 | struct coding_system *coding; |
| 712 | size_t n, stringlen; |
| 713 | |
| 714 | struct tty_display_info *tty = FRAME_TTY (f); |
| 715 | |
| 716 | tty_turn_off_insert (tty); |
| 717 | tty_hide_cursor (tty); |
| 718 | |
| 719 | /* Don't dare write in last column of bottom line, if Auto-Wrap, |
| 720 | since that would scroll the whole frame on some terminals. */ |
| 721 | |
| 722 | if (AutoWrap (tty) |
| 723 | && curY (tty) + 1 == FRAME_LINES (f) |
| 724 | && (curX (tty) + len) == FRAME_COLS (f)) |
| 725 | len --; |
| 726 | if (len <= 0) |
| 727 | return; |
| 728 | |
| 729 | cmplus (tty, len); |
| 730 | |
| 731 | /* If terminal_coding does any conversion, use it, otherwise use |
| 732 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here |
| 733 | because it always return 1 if the member src_multibyte is 1. */ |
| 734 | coding = (FRAME_TERMINAL_CODING (f)->common_flags & CODING_REQUIRE_ENCODING_MASK |
| 735 | ? FRAME_TERMINAL_CODING (f) : &safe_terminal_coding); |
| 736 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
| 737 | the tail. */ |
| 738 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
| 739 | |
| 740 | for (stringlen = len; stringlen != 0; stringlen -= n) |
| 741 | { |
| 742 | /* Identify a run of glyphs with the same face. */ |
| 743 | int face_id = string->face_id; |
| 744 | |
| 745 | for (n = 1; n < stringlen; ++n) |
| 746 | if (string[n].face_id != face_id) |
| 747 | break; |
| 748 | |
| 749 | /* Turn appearance modes of the face of the run on. */ |
| 750 | tty_highlight_if_desired (tty); |
| 751 | turn_on_face (f, face_id); |
| 752 | |
| 753 | if (n == stringlen) |
| 754 | /* This is the last run. */ |
| 755 | coding->mode |= CODING_MODE_LAST_BLOCK; |
| 756 | conversion_buffer = encode_terminal_code (string, n, coding); |
| 757 | if (coding->produced > 0) |
| 758 | { |
| 759 | BLOCK_INPUT; |
| 760 | fwrite (conversion_buffer, 1, coding->produced, tty->output); |
| 761 | if (ferror (tty->output)) |
| 762 | clearerr (tty->output); |
| 763 | if (tty->termscript) |
| 764 | fwrite (conversion_buffer, 1, coding->produced, tty->termscript); |
| 765 | UNBLOCK_INPUT; |
| 766 | } |
| 767 | string += n; |
| 768 | |
| 769 | /* Turn appearance modes off. */ |
| 770 | turn_off_face (f, face_id); |
| 771 | tty_turn_off_highlight (tty); |
| 772 | } |
| 773 | |
| 774 | cmcheckmagic (tty); |
| 775 | } |
| 776 | |
| 777 | #ifdef HAVE_GPM /* Only used by GPM code. */ |
| 778 | |
| 779 | static void |
| 780 | tty_write_glyphs_with_face (register struct frame *f, register struct glyph *string, |
| 781 | register int len, register int face_id) |
| 782 | { |
| 783 | unsigned char *conversion_buffer; |
| 784 | struct coding_system *coding; |
| 785 | |
| 786 | struct tty_display_info *tty = FRAME_TTY (f); |
| 787 | |
| 788 | tty_turn_off_insert (tty); |
| 789 | tty_hide_cursor (tty); |
| 790 | |
| 791 | /* Don't dare write in last column of bottom line, if Auto-Wrap, |
| 792 | since that would scroll the whole frame on some terminals. */ |
| 793 | |
| 794 | if (AutoWrap (tty) |
| 795 | && curY (tty) + 1 == FRAME_LINES (f) |
| 796 | && (curX (tty) + len) == FRAME_COLS (f)) |
| 797 | len --; |
| 798 | if (len <= 0) |
| 799 | return; |
| 800 | |
| 801 | cmplus (tty, len); |
| 802 | |
| 803 | /* If terminal_coding does any conversion, use it, otherwise use |
| 804 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here |
| 805 | because it always return 1 if the member src_multibyte is 1. */ |
| 806 | coding = (FRAME_TERMINAL_CODING (f)->common_flags & CODING_REQUIRE_ENCODING_MASK |
| 807 | ? FRAME_TERMINAL_CODING (f) : &safe_terminal_coding); |
| 808 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
| 809 | the tail. */ |
| 810 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
| 811 | |
| 812 | /* Turn appearance modes of the face. */ |
| 813 | tty_highlight_if_desired (tty); |
| 814 | turn_on_face (f, face_id); |
| 815 | |
| 816 | coding->mode |= CODING_MODE_LAST_BLOCK; |
| 817 | conversion_buffer = encode_terminal_code (string, len, coding); |
| 818 | if (coding->produced > 0) |
| 819 | { |
| 820 | BLOCK_INPUT; |
| 821 | fwrite (conversion_buffer, 1, coding->produced, tty->output); |
| 822 | if (ferror (tty->output)) |
| 823 | clearerr (tty->output); |
| 824 | if (tty->termscript) |
| 825 | fwrite (conversion_buffer, 1, coding->produced, tty->termscript); |
| 826 | UNBLOCK_INPUT; |
| 827 | } |
| 828 | |
| 829 | /* Turn appearance modes off. */ |
| 830 | turn_off_face (f, face_id); |
| 831 | tty_turn_off_highlight (tty); |
| 832 | |
| 833 | cmcheckmagic (tty); |
| 834 | } |
| 835 | #endif |
| 836 | |
| 837 | /* An implementation of insert_glyphs for termcap frames. */ |
| 838 | |
| 839 | static void |
| 840 | tty_insert_glyphs (struct frame *f, struct glyph *start, int len) |
| 841 | { |
| 842 | char *buf; |
| 843 | struct glyph *glyph = NULL; |
| 844 | unsigned char *conversion_buffer; |
| 845 | unsigned char space[1]; |
| 846 | struct coding_system *coding; |
| 847 | |
| 848 | struct tty_display_info *tty = FRAME_TTY (f); |
| 849 | |
| 850 | if (tty->TS_ins_multi_chars) |
| 851 | { |
| 852 | buf = tparam (tty->TS_ins_multi_chars, 0, 0, len, 0, 0, 0); |
| 853 | OUTPUT1 (tty, buf); |
| 854 | xfree (buf); |
| 855 | if (start) |
| 856 | write_glyphs (f, start, len); |
| 857 | return; |
| 858 | } |
| 859 | |
| 860 | tty_turn_on_insert (tty); |
| 861 | cmplus (tty, len); |
| 862 | |
| 863 | if (! start) |
| 864 | space[0] = SPACEGLYPH; |
| 865 | |
| 866 | /* If terminal_coding does any conversion, use it, otherwise use |
| 867 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here |
| 868 | because it always return 1 if the member src_multibyte is 1. */ |
| 869 | coding = (FRAME_TERMINAL_CODING (f)->common_flags & CODING_REQUIRE_ENCODING_MASK |
| 870 | ? FRAME_TERMINAL_CODING (f) : &safe_terminal_coding); |
| 871 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
| 872 | the tail. */ |
| 873 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
| 874 | |
| 875 | while (len-- > 0) |
| 876 | { |
| 877 | OUTPUT1_IF (tty, tty->TS_ins_char); |
| 878 | if (!start) |
| 879 | { |
| 880 | conversion_buffer = space; |
| 881 | coding->produced = 1; |
| 882 | } |
| 883 | else |
| 884 | { |
| 885 | tty_highlight_if_desired (tty); |
| 886 | turn_on_face (f, start->face_id); |
| 887 | glyph = start; |
| 888 | ++start; |
| 889 | /* We must open sufficient space for a character which |
| 890 | occupies more than one column. */ |
| 891 | while (len && CHAR_GLYPH_PADDING_P (*start)) |
| 892 | { |
| 893 | OUTPUT1_IF (tty, tty->TS_ins_char); |
| 894 | start++, len--; |
| 895 | } |
| 896 | |
| 897 | if (len <= 0) |
| 898 | /* This is the last glyph. */ |
| 899 | coding->mode |= CODING_MODE_LAST_BLOCK; |
| 900 | |
| 901 | conversion_buffer = encode_terminal_code (glyph, 1, coding); |
| 902 | } |
| 903 | |
| 904 | if (coding->produced > 0) |
| 905 | { |
| 906 | BLOCK_INPUT; |
| 907 | fwrite (conversion_buffer, 1, coding->produced, tty->output); |
| 908 | if (ferror (tty->output)) |
| 909 | clearerr (tty->output); |
| 910 | if (tty->termscript) |
| 911 | fwrite (conversion_buffer, 1, coding->produced, tty->termscript); |
| 912 | UNBLOCK_INPUT; |
| 913 | } |
| 914 | |
| 915 | OUTPUT1_IF (tty, tty->TS_pad_inserted_char); |
| 916 | if (start) |
| 917 | { |
| 918 | turn_off_face (f, glyph->face_id); |
| 919 | tty_turn_off_highlight (tty); |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | cmcheckmagic (tty); |
| 924 | } |
| 925 | |
| 926 | /* An implementation of delete_glyphs for termcap frames. */ |
| 927 | |
| 928 | static void |
| 929 | tty_delete_glyphs (struct frame *f, int n) |
| 930 | { |
| 931 | char *buf; |
| 932 | register int i; |
| 933 | |
| 934 | struct tty_display_info *tty = FRAME_TTY (f); |
| 935 | |
| 936 | if (tty->delete_in_insert_mode) |
| 937 | { |
| 938 | tty_turn_on_insert (tty); |
| 939 | } |
| 940 | else |
| 941 | { |
| 942 | tty_turn_off_insert (tty); |
| 943 | OUTPUT_IF (tty, tty->TS_delete_mode); |
| 944 | } |
| 945 | |
| 946 | if (tty->TS_del_multi_chars) |
| 947 | { |
| 948 | buf = tparam (tty->TS_del_multi_chars, 0, 0, n, 0, 0, 0); |
| 949 | OUTPUT1 (tty, buf); |
| 950 | xfree (buf); |
| 951 | } |
| 952 | else |
| 953 | for (i = 0; i < n; i++) |
| 954 | OUTPUT1 (tty, tty->TS_del_char); |
| 955 | if (!tty->delete_in_insert_mode) |
| 956 | OUTPUT_IF (tty, tty->TS_end_delete_mode); |
| 957 | } |
| 958 | \f |
| 959 | /* An implementation of ins_del_lines for termcap frames. */ |
| 960 | |
| 961 | static void |
| 962 | tty_ins_del_lines (struct frame *f, int vpos, int n) |
| 963 | { |
| 964 | struct tty_display_info *tty = FRAME_TTY (f); |
| 965 | const char *multi = |
| 966 | n > 0 ? tty->TS_ins_multi_lines : tty->TS_del_multi_lines; |
| 967 | const char *single = n > 0 ? tty->TS_ins_line : tty->TS_del_line; |
| 968 | const char *scroll = n > 0 ? tty->TS_rev_scroll : tty->TS_fwd_scroll; |
| 969 | |
| 970 | register int i = n > 0 ? n : -n; |
| 971 | register char *buf; |
| 972 | |
| 973 | /* If the lines below the insertion are being pushed |
| 974 | into the end of the window, this is the same as clearing; |
| 975 | and we know the lines are already clear, since the matching |
| 976 | deletion has already been done. So can ignore this. */ |
| 977 | /* If the lines below the deletion are blank lines coming |
| 978 | out of the end of the window, don't bother, |
| 979 | as there will be a matching inslines later that will flush them. */ |
| 980 | if (FRAME_SCROLL_REGION_OK (f) |
| 981 | && vpos + i >= tty->specified_window) |
| 982 | return; |
| 983 | if (!FRAME_MEMORY_BELOW_FRAME (f) |
| 984 | && vpos + i >= FRAME_LINES (f)) |
| 985 | return; |
| 986 | |
| 987 | if (multi) |
| 988 | { |
| 989 | raw_cursor_to (f, vpos, 0); |
| 990 | tty_background_highlight (tty); |
| 991 | buf = tparam (multi, 0, 0, i, 0, 0, 0); |
| 992 | OUTPUT (tty, buf); |
| 993 | xfree (buf); |
| 994 | } |
| 995 | else if (single) |
| 996 | { |
| 997 | raw_cursor_to (f, vpos, 0); |
| 998 | tty_background_highlight (tty); |
| 999 | while (--i >= 0) |
| 1000 | OUTPUT (tty, single); |
| 1001 | if (tty->TF_teleray) |
| 1002 | curX (tty) = 0; |
| 1003 | } |
| 1004 | else |
| 1005 | { |
| 1006 | tty_set_scroll_region (f, vpos, tty->specified_window); |
| 1007 | if (n < 0) |
| 1008 | raw_cursor_to (f, tty->specified_window - 1, 0); |
| 1009 | else |
| 1010 | raw_cursor_to (f, vpos, 0); |
| 1011 | tty_background_highlight (tty); |
| 1012 | while (--i >= 0) |
| 1013 | OUTPUTL (tty, scroll, tty->specified_window - vpos); |
| 1014 | tty_set_scroll_region (f, 0, tty->specified_window); |
| 1015 | } |
| 1016 | |
| 1017 | if (!FRAME_SCROLL_REGION_OK (f) |
| 1018 | && FRAME_MEMORY_BELOW_FRAME (f) |
| 1019 | && n < 0) |
| 1020 | { |
| 1021 | cursor_to (f, FRAME_LINES (f) + n, 0); |
| 1022 | clear_to_end (f); |
| 1023 | } |
| 1024 | } |
| 1025 | \f |
| 1026 | /* Compute cost of sending "str", in characters, |
| 1027 | not counting any line-dependent padding. */ |
| 1028 | |
| 1029 | int |
| 1030 | string_cost (const char *str) |
| 1031 | { |
| 1032 | cost = 0; |
| 1033 | if (str) |
| 1034 | tputs (str, 0, evalcost); |
| 1035 | return cost; |
| 1036 | } |
| 1037 | |
| 1038 | /* Compute cost of sending "str", in characters, |
| 1039 | counting any line-dependent padding at one line. */ |
| 1040 | |
| 1041 | static int |
| 1042 | string_cost_one_line (const char *str) |
| 1043 | { |
| 1044 | cost = 0; |
| 1045 | if (str) |
| 1046 | tputs (str, 1, evalcost); |
| 1047 | return cost; |
| 1048 | } |
| 1049 | |
| 1050 | /* Compute per line amount of line-dependent padding, |
| 1051 | in tenths of characters. */ |
| 1052 | |
| 1053 | int |
| 1054 | per_line_cost (const char *str) |
| 1055 | { |
| 1056 | cost = 0; |
| 1057 | if (str) |
| 1058 | tputs (str, 0, evalcost); |
| 1059 | cost = - cost; |
| 1060 | if (str) |
| 1061 | tputs (str, 10, evalcost); |
| 1062 | return cost; |
| 1063 | } |
| 1064 | |
| 1065 | /* char_ins_del_cost[n] is cost of inserting N characters. |
| 1066 | char_ins_del_cost[-n] is cost of deleting N characters. |
| 1067 | The length of this vector is based on max_frame_cols. */ |
| 1068 | |
| 1069 | int *char_ins_del_vector; |
| 1070 | |
| 1071 | #define char_ins_del_cost(f) (&char_ins_del_vector[FRAME_COLS ((f))]) |
| 1072 | |
| 1073 | /* ARGSUSED */ |
| 1074 | static void |
| 1075 | calculate_ins_del_char_costs (struct frame *f) |
| 1076 | { |
| 1077 | struct tty_display_info *tty = FRAME_TTY (f); |
| 1078 | int ins_startup_cost, del_startup_cost; |
| 1079 | int ins_cost_per_char, del_cost_per_char; |
| 1080 | register int i; |
| 1081 | register int *p; |
| 1082 | |
| 1083 | if (tty->TS_ins_multi_chars) |
| 1084 | { |
| 1085 | ins_cost_per_char = 0; |
| 1086 | ins_startup_cost = string_cost_one_line (tty->TS_ins_multi_chars); |
| 1087 | } |
| 1088 | else if (tty->TS_ins_char || tty->TS_pad_inserted_char |
| 1089 | || (tty->TS_insert_mode && tty->TS_end_insert_mode)) |
| 1090 | { |
| 1091 | ins_startup_cost = (30 * (string_cost (tty->TS_insert_mode) |
| 1092 | + string_cost (tty->TS_end_insert_mode))) / 100; |
| 1093 | ins_cost_per_char = (string_cost_one_line (tty->TS_ins_char) |
| 1094 | + string_cost_one_line (tty->TS_pad_inserted_char)); |
| 1095 | } |
| 1096 | else |
| 1097 | { |
| 1098 | ins_startup_cost = 9999; |
| 1099 | ins_cost_per_char = 0; |
| 1100 | } |
| 1101 | |
| 1102 | if (tty->TS_del_multi_chars) |
| 1103 | { |
| 1104 | del_cost_per_char = 0; |
| 1105 | del_startup_cost = string_cost_one_line (tty->TS_del_multi_chars); |
| 1106 | } |
| 1107 | else if (tty->TS_del_char) |
| 1108 | { |
| 1109 | del_startup_cost = (string_cost (tty->TS_delete_mode) |
| 1110 | + string_cost (tty->TS_end_delete_mode)); |
| 1111 | if (tty->delete_in_insert_mode) |
| 1112 | del_startup_cost /= 2; |
| 1113 | del_cost_per_char = string_cost_one_line (tty->TS_del_char); |
| 1114 | } |
| 1115 | else |
| 1116 | { |
| 1117 | del_startup_cost = 9999; |
| 1118 | del_cost_per_char = 0; |
| 1119 | } |
| 1120 | |
| 1121 | /* Delete costs are at negative offsets */ |
| 1122 | p = &char_ins_del_cost (f)[0]; |
| 1123 | for (i = FRAME_COLS (f); --i >= 0;) |
| 1124 | *--p = (del_startup_cost += del_cost_per_char); |
| 1125 | |
| 1126 | /* Doing nothing is free */ |
| 1127 | p = &char_ins_del_cost (f)[0]; |
| 1128 | *p++ = 0; |
| 1129 | |
| 1130 | /* Insert costs are at positive offsets */ |
| 1131 | for (i = FRAME_COLS (f); --i >= 0;) |
| 1132 | *p++ = (ins_startup_cost += ins_cost_per_char); |
| 1133 | } |
| 1134 | |
| 1135 | void |
| 1136 | calculate_costs (struct frame *frame) |
| 1137 | { |
| 1138 | FRAME_COST_BAUD_RATE (frame) = baud_rate; |
| 1139 | |
| 1140 | if (FRAME_TERMCAP_P (frame)) |
| 1141 | { |
| 1142 | struct tty_display_info *tty = FRAME_TTY (frame); |
| 1143 | register const char *f = (tty->TS_set_scroll_region |
| 1144 | ? tty->TS_set_scroll_region |
| 1145 | : tty->TS_set_scroll_region_1); |
| 1146 | |
| 1147 | FRAME_SCROLL_REGION_COST (frame) = string_cost (f); |
| 1148 | |
| 1149 | tty->costs_set = 1; |
| 1150 | |
| 1151 | /* These variables are only used for terminal stuff. They are |
| 1152 | allocated once for the terminal frame of X-windows emacs, but not |
| 1153 | used afterwards. |
| 1154 | |
| 1155 | char_ins_del_vector (i.e., char_ins_del_cost) isn't used because |
| 1156 | X turns off char_ins_del_ok. */ |
| 1157 | |
| 1158 | max_frame_lines = max (max_frame_lines, FRAME_LINES (frame)); |
| 1159 | max_frame_cols = max (max_frame_cols, FRAME_COLS (frame)); |
| 1160 | |
| 1161 | if (char_ins_del_vector != 0) |
| 1162 | char_ins_del_vector |
| 1163 | = (int *) xrealloc (char_ins_del_vector, |
| 1164 | (sizeof (int) |
| 1165 | + 2 * max_frame_cols * sizeof (int))); |
| 1166 | else |
| 1167 | char_ins_del_vector |
| 1168 | = (int *) xmalloc (sizeof (int) |
| 1169 | + 2 * max_frame_cols * sizeof (int)); |
| 1170 | |
| 1171 | memset (char_ins_del_vector, 0, |
| 1172 | (sizeof (int) + 2 * max_frame_cols * sizeof (int))); |
| 1173 | |
| 1174 | |
| 1175 | if (f && (!tty->TS_ins_line && !tty->TS_del_line)) |
| 1176 | do_line_insertion_deletion_costs (frame, |
| 1177 | tty->TS_rev_scroll, tty->TS_ins_multi_lines, |
| 1178 | tty->TS_fwd_scroll, tty->TS_del_multi_lines, |
| 1179 | f, f, 1); |
| 1180 | else |
| 1181 | do_line_insertion_deletion_costs (frame, |
| 1182 | tty->TS_ins_line, tty->TS_ins_multi_lines, |
| 1183 | tty->TS_del_line, tty->TS_del_multi_lines, |
| 1184 | 0, 0, 1); |
| 1185 | |
| 1186 | calculate_ins_del_char_costs (frame); |
| 1187 | |
| 1188 | /* Don't use TS_repeat if its padding is worse than sending the chars */ |
| 1189 | if (tty->TS_repeat && per_line_cost (tty->TS_repeat) * baud_rate < 9000) |
| 1190 | tty->RPov = string_cost (tty->TS_repeat); |
| 1191 | else |
| 1192 | tty->RPov = FRAME_COLS (frame) * 2; |
| 1193 | |
| 1194 | cmcostinit (FRAME_TTY (frame)); /* set up cursor motion costs */ |
| 1195 | } |
| 1196 | } |
| 1197 | \f |
| 1198 | struct fkey_table { |
| 1199 | const char *cap, *name; |
| 1200 | }; |
| 1201 | |
| 1202 | /* Termcap capability names that correspond directly to X keysyms. |
| 1203 | Some of these (marked "terminfo") aren't supplied by old-style |
| 1204 | (Berkeley) termcap entries. They're listed in X keysym order; |
| 1205 | except we put the keypad keys first, so that if they clash with |
| 1206 | other keys (as on the IBM PC keyboard) they get overridden. |
| 1207 | */ |
| 1208 | |
| 1209 | static const struct fkey_table keys[] = |
| 1210 | { |
| 1211 | {"kh", "home"}, /* termcap */ |
| 1212 | {"kl", "left"}, /* termcap */ |
| 1213 | {"ku", "up"}, /* termcap */ |
| 1214 | {"kr", "right"}, /* termcap */ |
| 1215 | {"kd", "down"}, /* termcap */ |
| 1216 | {"%8", "prior"}, /* terminfo */ |
| 1217 | {"%5", "next"}, /* terminfo */ |
| 1218 | {"@7", "end"}, /* terminfo */ |
| 1219 | {"@1", "begin"}, /* terminfo */ |
| 1220 | {"*6", "select"}, /* terminfo */ |
| 1221 | {"%9", "print"}, /* terminfo */ |
| 1222 | {"@4", "execute"}, /* terminfo --- actually the `command' key */ |
| 1223 | /* |
| 1224 | * "insert" --- see below |
| 1225 | */ |
| 1226 | {"&8", "undo"}, /* terminfo */ |
| 1227 | {"%0", "redo"}, /* terminfo */ |
| 1228 | {"%7", "menu"}, /* terminfo --- actually the `options' key */ |
| 1229 | {"@0", "find"}, /* terminfo */ |
| 1230 | {"@2", "cancel"}, /* terminfo */ |
| 1231 | {"%1", "help"}, /* terminfo */ |
| 1232 | /* |
| 1233 | * "break" goes here, but can't be reliably intercepted with termcap |
| 1234 | */ |
| 1235 | {"&4", "reset"}, /* terminfo --- actually `restart' */ |
| 1236 | /* |
| 1237 | * "system" and "user" --- no termcaps |
| 1238 | */ |
| 1239 | {"kE", "clearline"}, /* terminfo */ |
| 1240 | {"kA", "insertline"}, /* terminfo */ |
| 1241 | {"kL", "deleteline"}, /* terminfo */ |
| 1242 | {"kI", "insertchar"}, /* terminfo */ |
| 1243 | {"kD", "deletechar"}, /* terminfo */ |
| 1244 | {"kB", "backtab"}, /* terminfo */ |
| 1245 | /* |
| 1246 | * "kp_backtab", "kp-space", "kp-tab" --- no termcaps |
| 1247 | */ |
| 1248 | {"@8", "kp-enter"}, /* terminfo */ |
| 1249 | /* |
| 1250 | * "kp-f1", "kp-f2", "kp-f3" "kp-f4", |
| 1251 | * "kp-multiply", "kp-add", "kp-separator", |
| 1252 | * "kp-subtract", "kp-decimal", "kp-divide", "kp-0"; |
| 1253 | * --- no termcaps for any of these. |
| 1254 | */ |
| 1255 | {"K4", "kp-1"}, /* terminfo */ |
| 1256 | /* |
| 1257 | * "kp-2" --- no termcap |
| 1258 | */ |
| 1259 | {"K5", "kp-3"}, /* terminfo */ |
| 1260 | /* |
| 1261 | * "kp-4" --- no termcap |
| 1262 | */ |
| 1263 | {"K2", "kp-5"}, /* terminfo */ |
| 1264 | /* |
| 1265 | * "kp-6" --- no termcap |
| 1266 | */ |
| 1267 | {"K1", "kp-7"}, /* terminfo */ |
| 1268 | /* |
| 1269 | * "kp-8" --- no termcap |
| 1270 | */ |
| 1271 | {"K3", "kp-9"}, /* terminfo */ |
| 1272 | /* |
| 1273 | * "kp-equal" --- no termcap |
| 1274 | */ |
| 1275 | {"k1", "f1"}, |
| 1276 | {"k2", "f2"}, |
| 1277 | {"k3", "f3"}, |
| 1278 | {"k4", "f4"}, |
| 1279 | {"k5", "f5"}, |
| 1280 | {"k6", "f6"}, |
| 1281 | {"k7", "f7"}, |
| 1282 | {"k8", "f8"}, |
| 1283 | {"k9", "f9"}, |
| 1284 | |
| 1285 | {"&0", "S-cancel"}, /*shifted cancel key*/ |
| 1286 | {"&9", "S-begin"}, /*shifted begin key*/ |
| 1287 | {"*0", "S-find"}, /*shifted find key*/ |
| 1288 | {"*1", "S-execute"}, /*shifted execute? actually shifted command key*/ |
| 1289 | {"*4", "S-delete"}, /*shifted delete-character key*/ |
| 1290 | {"*7", "S-end"}, /*shifted end key*/ |
| 1291 | {"*8", "S-clearline"}, /*shifted clear-to end-of-line key*/ |
| 1292 | {"#1", "S-help"}, /*shifted help key*/ |
| 1293 | {"#2", "S-home"}, /*shifted home key*/ |
| 1294 | {"#3", "S-insert"}, /*shifted insert-character key*/ |
| 1295 | {"#4", "S-left"}, /*shifted left-arrow key*/ |
| 1296 | {"%d", "S-menu"}, /*shifted menu? actually shifted options key*/ |
| 1297 | {"%c", "S-next"}, /*shifted next key*/ |
| 1298 | {"%e", "S-prior"}, /*shifted previous key*/ |
| 1299 | {"%f", "S-print"}, /*shifted print key*/ |
| 1300 | {"%g", "S-redo"}, /*shifted redo key*/ |
| 1301 | {"%i", "S-right"}, /*shifted right-arrow key*/ |
| 1302 | {"!3", "S-undo"} /*shifted undo key*/ |
| 1303 | }; |
| 1304 | |
| 1305 | #ifndef DOS_NT |
| 1306 | static char **term_get_fkeys_address; |
| 1307 | static KBOARD *term_get_fkeys_kboard; |
| 1308 | static Lisp_Object term_get_fkeys_1 (void); |
| 1309 | |
| 1310 | /* Find the escape codes sent by the function keys for Vinput_decode_map. |
| 1311 | This function scans the termcap function key sequence entries, and |
| 1312 | adds entries to Vinput_decode_map for each function key it finds. */ |
| 1313 | |
| 1314 | static void |
| 1315 | term_get_fkeys (char **address, KBOARD *kboard) |
| 1316 | { |
| 1317 | /* We run the body of the function (term_get_fkeys_1) and ignore all Lisp |
| 1318 | errors during the call. The only errors should be from Fdefine_key |
| 1319 | when given a key sequence containing an invalid prefix key. If the |
| 1320 | termcap defines function keys which use a prefix that is already bound |
| 1321 | to a command by the default bindings, we should silently ignore that |
| 1322 | function key specification, rather than giving the user an error and |
| 1323 | refusing to run at all on such a terminal. */ |
| 1324 | |
| 1325 | term_get_fkeys_address = address; |
| 1326 | term_get_fkeys_kboard = kboard; |
| 1327 | internal_condition_case (term_get_fkeys_1, Qerror, Fidentity); |
| 1328 | } |
| 1329 | |
| 1330 | static Lisp_Object |
| 1331 | term_get_fkeys_1 (void) |
| 1332 | { |
| 1333 | int i; |
| 1334 | |
| 1335 | char **address = term_get_fkeys_address; |
| 1336 | KBOARD *kboard = term_get_fkeys_kboard; |
| 1337 | |
| 1338 | /* This can happen if CANNOT_DUMP or with strange options. */ |
| 1339 | if (!KEYMAPP (KVAR (kboard, Vinput_decode_map))) |
| 1340 | KVAR (kboard, Vinput_decode_map) = Fmake_sparse_keymap (Qnil); |
| 1341 | |
| 1342 | for (i = 0; i < (sizeof (keys)/sizeof (keys[0])); i++) |
| 1343 | { |
| 1344 | char *sequence = tgetstr (keys[i].cap, address); |
| 1345 | if (sequence) |
| 1346 | Fdefine_key (KVAR (kboard, Vinput_decode_map), build_string (sequence), |
| 1347 | Fmake_vector (make_number (1), |
| 1348 | intern (keys[i].name))); |
| 1349 | } |
| 1350 | |
| 1351 | /* The uses of the "k0" capability are inconsistent; sometimes it |
| 1352 | describes F10, whereas othertimes it describes F0 and "k;" describes F10. |
| 1353 | We will attempt to politely accommodate both systems by testing for |
| 1354 | "k;", and if it is present, assuming that "k0" denotes F0, otherwise F10. |
| 1355 | */ |
| 1356 | { |
| 1357 | const char *k_semi = tgetstr ("k;", address); |
| 1358 | const char *k0 = tgetstr ("k0", address); |
| 1359 | const char *k0_name = "f10"; |
| 1360 | |
| 1361 | if (k_semi) |
| 1362 | { |
| 1363 | if (k0) |
| 1364 | /* Define f0 first, so that f10 takes precedence in case the |
| 1365 | key sequences happens to be the same. */ |
| 1366 | Fdefine_key (KVAR (kboard, Vinput_decode_map), build_string (k0), |
| 1367 | Fmake_vector (make_number (1), intern ("f0"))); |
| 1368 | Fdefine_key (KVAR (kboard, Vinput_decode_map), build_string (k_semi), |
| 1369 | Fmake_vector (make_number (1), intern ("f10"))); |
| 1370 | } |
| 1371 | else if (k0) |
| 1372 | Fdefine_key (KVAR (kboard, Vinput_decode_map), build_string (k0), |
| 1373 | Fmake_vector (make_number (1), intern (k0_name))); |
| 1374 | } |
| 1375 | |
| 1376 | /* Set up cookies for numbered function keys above f10. */ |
| 1377 | { |
| 1378 | char fcap[3], fkey[4]; |
| 1379 | |
| 1380 | fcap[0] = 'F'; fcap[2] = '\0'; |
| 1381 | for (i = 11; i < 64; i++) |
| 1382 | { |
| 1383 | if (i <= 19) |
| 1384 | fcap[1] = '1' + i - 11; |
| 1385 | else if (i <= 45) |
| 1386 | fcap[1] = 'A' + i - 20; |
| 1387 | else |
| 1388 | fcap[1] = 'a' + i - 46; |
| 1389 | |
| 1390 | { |
| 1391 | char *sequence = tgetstr (fcap, address); |
| 1392 | if (sequence) |
| 1393 | { |
| 1394 | sprintf (fkey, "f%d", i); |
| 1395 | Fdefine_key (KVAR (kboard, Vinput_decode_map), build_string (sequence), |
| 1396 | Fmake_vector (make_number (1), |
| 1397 | intern (fkey))); |
| 1398 | } |
| 1399 | } |
| 1400 | } |
| 1401 | } |
| 1402 | |
| 1403 | /* |
| 1404 | * Various mappings to try and get a better fit. |
| 1405 | */ |
| 1406 | { |
| 1407 | #define CONDITIONAL_REASSIGN(cap1, cap2, sym) \ |
| 1408 | if (!tgetstr (cap1, address)) \ |
| 1409 | { \ |
| 1410 | char *sequence = tgetstr (cap2, address); \ |
| 1411 | if (sequence) \ |
| 1412 | Fdefine_key (KVAR (kboard, Vinput_decode_map), build_string (sequence), \ |
| 1413 | Fmake_vector (make_number (1), \ |
| 1414 | intern (sym))); \ |
| 1415 | } |
| 1416 | |
| 1417 | /* if there's no key_next keycap, map key_npage to `next' keysym */ |
| 1418 | CONDITIONAL_REASSIGN ("%5", "kN", "next"); |
| 1419 | /* if there's no key_prev keycap, map key_ppage to `previous' keysym */ |
| 1420 | CONDITIONAL_REASSIGN ("%8", "kP", "prior"); |
| 1421 | /* if there's no key_dc keycap, map key_ic to `insert' keysym */ |
| 1422 | CONDITIONAL_REASSIGN ("kD", "kI", "insert"); |
| 1423 | /* if there's no key_end keycap, map key_ll to 'end' keysym */ |
| 1424 | CONDITIONAL_REASSIGN ("@7", "kH", "end"); |
| 1425 | |
| 1426 | /* IBM has their own non-standard dialect of terminfo. |
| 1427 | If the standard name isn't found, try the IBM name. */ |
| 1428 | CONDITIONAL_REASSIGN ("kB", "KO", "backtab"); |
| 1429 | CONDITIONAL_REASSIGN ("@4", "kJ", "execute"); /* actually "action" */ |
| 1430 | CONDITIONAL_REASSIGN ("@4", "kc", "execute"); /* actually "command" */ |
| 1431 | CONDITIONAL_REASSIGN ("%7", "ki", "menu"); |
| 1432 | CONDITIONAL_REASSIGN ("@7", "kw", "end"); |
| 1433 | CONDITIONAL_REASSIGN ("F1", "k<", "f11"); |
| 1434 | CONDITIONAL_REASSIGN ("F2", "k>", "f12"); |
| 1435 | CONDITIONAL_REASSIGN ("%1", "kq", "help"); |
| 1436 | CONDITIONAL_REASSIGN ("*6", "kU", "select"); |
| 1437 | #undef CONDITIONAL_REASSIGN |
| 1438 | } |
| 1439 | |
| 1440 | return Qnil; |
| 1441 | } |
| 1442 | #endif /* not DOS_NT */ |
| 1443 | |
| 1444 | \f |
| 1445 | /*********************************************************************** |
| 1446 | Character Display Information |
| 1447 | ***********************************************************************/ |
| 1448 | static void append_glyph (struct it *); |
| 1449 | static void produce_stretch_glyph (struct it *); |
| 1450 | static void append_composite_glyph (struct it *); |
| 1451 | static void produce_composite_glyph (struct it *); |
| 1452 | static void append_glyphless_glyph (struct it *, int, const char *); |
| 1453 | static void produce_glyphless_glyph (struct it *, int, Lisp_Object); |
| 1454 | |
| 1455 | /* Append glyphs to IT's glyph_row. Called from produce_glyphs for |
| 1456 | terminal frames if IT->glyph_row != NULL. IT->char_to_display is |
| 1457 | the character for which to produce glyphs; IT->face_id contains the |
| 1458 | character's face. Padding glyphs are appended if IT->c has a |
| 1459 | IT->pixel_width > 1. */ |
| 1460 | |
| 1461 | static void |
| 1462 | append_glyph (struct it *it) |
| 1463 | { |
| 1464 | struct glyph *glyph, *end; |
| 1465 | int i; |
| 1466 | |
| 1467 | xassert (it->glyph_row); |
| 1468 | glyph = (it->glyph_row->glyphs[it->area] |
| 1469 | + it->glyph_row->used[it->area]); |
| 1470 | end = it->glyph_row->glyphs[1 + it->area]; |
| 1471 | |
| 1472 | /* If the glyph row is reversed, we need to prepend the glyph rather |
| 1473 | than append it. */ |
| 1474 | if (it->glyph_row->reversed_p && it->area == TEXT_AREA) |
| 1475 | { |
| 1476 | struct glyph *g; |
| 1477 | int move_by = it->pixel_width; |
| 1478 | |
| 1479 | /* Make room for the new glyphs. */ |
| 1480 | if (move_by > end - glyph) /* don't overstep end of this area */ |
| 1481 | move_by = end - glyph; |
| 1482 | for (g = glyph - 1; g >= it->glyph_row->glyphs[it->area]; g--) |
| 1483 | g[move_by] = *g; |
| 1484 | glyph = it->glyph_row->glyphs[it->area]; |
| 1485 | end = glyph + move_by; |
| 1486 | } |
| 1487 | |
| 1488 | /* BIDI Note: we put the glyphs of a "multi-pixel" character left to |
| 1489 | right, even in the REVERSED_P case, since (a) all of its u.ch are |
| 1490 | identical, and (b) the PADDING_P flag needs to be set for the |
| 1491 | leftmost one, because we write to the terminal left-to-right. */ |
| 1492 | for (i = 0; |
| 1493 | i < it->pixel_width && glyph < end; |
| 1494 | ++i) |
| 1495 | { |
| 1496 | glyph->type = CHAR_GLYPH; |
| 1497 | glyph->pixel_width = 1; |
| 1498 | glyph->u.ch = it->char_to_display; |
| 1499 | glyph->face_id = it->face_id; |
| 1500 | glyph->padding_p = i > 0; |
| 1501 | glyph->charpos = CHARPOS (it->position); |
| 1502 | glyph->object = it->object; |
| 1503 | if (it->bidi_p) |
| 1504 | { |
| 1505 | glyph->resolved_level = it->bidi_it.resolved_level; |
| 1506 | if ((it->bidi_it.type & 7) != it->bidi_it.type) |
| 1507 | abort (); |
| 1508 | glyph->bidi_type = it->bidi_it.type; |
| 1509 | } |
| 1510 | else |
| 1511 | { |
| 1512 | glyph->resolved_level = 0; |
| 1513 | glyph->bidi_type = UNKNOWN_BT; |
| 1514 | } |
| 1515 | |
| 1516 | ++it->glyph_row->used[it->area]; |
| 1517 | ++glyph; |
| 1518 | } |
| 1519 | } |
| 1520 | |
| 1521 | /* Produce glyphs for the display element described by IT. *IT |
| 1522 | specifies what we want to produce a glyph for (character, image, ...), |
| 1523 | and where in the glyph matrix we currently are (glyph row and hpos). |
| 1524 | produce_glyphs fills in output fields of *IT with information such as the |
| 1525 | pixel width and height of a character, and maybe output actual glyphs at |
| 1526 | the same time if IT->glyph_row is non-null. For an overview, see |
| 1527 | the explanation in dispextern.h, before the definition of the |
| 1528 | display_element_type enumeration. |
| 1529 | |
| 1530 | produce_glyphs also stores the result of glyph width, ascent |
| 1531 | etc. computations in *IT. |
| 1532 | |
| 1533 | IT->glyph_row may be null, in which case produce_glyphs does not |
| 1534 | actually fill in the glyphs. This is used in the move_* functions |
| 1535 | in xdisp.c for text width and height computations. |
| 1536 | |
| 1537 | Callers usually don't call produce_glyphs directly; |
| 1538 | instead they use the macro PRODUCE_GLYPHS. */ |
| 1539 | |
| 1540 | void |
| 1541 | produce_glyphs (struct it *it) |
| 1542 | { |
| 1543 | /* If a hook is installed, let it do the work. */ |
| 1544 | |
| 1545 | /* Nothing but characters are supported on terminal frames. */ |
| 1546 | xassert (it->what == IT_CHARACTER |
| 1547 | || it->what == IT_COMPOSITION |
| 1548 | || it->what == IT_STRETCH); |
| 1549 | |
| 1550 | if (it->what == IT_STRETCH) |
| 1551 | { |
| 1552 | produce_stretch_glyph (it); |
| 1553 | goto done; |
| 1554 | } |
| 1555 | |
| 1556 | if (it->what == IT_COMPOSITION) |
| 1557 | { |
| 1558 | produce_composite_glyph (it); |
| 1559 | goto done; |
| 1560 | } |
| 1561 | |
| 1562 | if (it->what == IT_GLYPHLESS) |
| 1563 | { |
| 1564 | produce_glyphless_glyph (it, 0, Qnil); |
| 1565 | goto done; |
| 1566 | } |
| 1567 | |
| 1568 | if (it->char_to_display >= 040 && it->char_to_display < 0177) |
| 1569 | { |
| 1570 | it->pixel_width = it->nglyphs = 1; |
| 1571 | if (it->glyph_row) |
| 1572 | append_glyph (it); |
| 1573 | } |
| 1574 | else if (it->char_to_display == '\n') |
| 1575 | it->pixel_width = it->nglyphs = 0; |
| 1576 | else if (it->char_to_display == '\t') |
| 1577 | { |
| 1578 | int absolute_x = (it->current_x |
| 1579 | + it->continuation_lines_width); |
| 1580 | int next_tab_x |
| 1581 | = (((1 + absolute_x + it->tab_width - 1) |
| 1582 | / it->tab_width) |
| 1583 | * it->tab_width); |
| 1584 | int nspaces; |
| 1585 | |
| 1586 | /* If part of the TAB has been displayed on the previous line |
| 1587 | which is continued now, continuation_lines_width will have |
| 1588 | been incremented already by the part that fitted on the |
| 1589 | continued line. So, we will get the right number of spaces |
| 1590 | here. */ |
| 1591 | nspaces = next_tab_x - absolute_x; |
| 1592 | |
| 1593 | if (it->glyph_row) |
| 1594 | { |
| 1595 | int n = nspaces; |
| 1596 | |
| 1597 | it->char_to_display = ' '; |
| 1598 | it->pixel_width = it->len = 1; |
| 1599 | |
| 1600 | while (n--) |
| 1601 | append_glyph (it); |
| 1602 | } |
| 1603 | |
| 1604 | it->pixel_width = nspaces; |
| 1605 | it->nglyphs = nspaces; |
| 1606 | } |
| 1607 | else if (CHAR_BYTE8_P (it->char_to_display)) |
| 1608 | { |
| 1609 | /* Coming here means that we must send the raw 8-bit byte as is |
| 1610 | to the terminal. Although there's no way to know how many |
| 1611 | columns it occupies on a screen, it is a good assumption that |
| 1612 | a single byte code has 1-column width. */ |
| 1613 | it->pixel_width = it->nglyphs = 1; |
| 1614 | if (it->glyph_row) |
| 1615 | append_glyph (it); |
| 1616 | } |
| 1617 | else |
| 1618 | { |
| 1619 | Lisp_Object charset_list = FRAME_TERMINAL (it->f)->charset_list; |
| 1620 | |
| 1621 | if (char_charset (it->char_to_display, charset_list, NULL)) |
| 1622 | { |
| 1623 | it->pixel_width = CHAR_WIDTH (it->char_to_display); |
| 1624 | it->nglyphs = it->pixel_width; |
| 1625 | if (it->glyph_row) |
| 1626 | append_glyph (it); |
| 1627 | } |
| 1628 | else |
| 1629 | { |
| 1630 | Lisp_Object acronym = lookup_glyphless_char_display (-1, it); |
| 1631 | |
| 1632 | xassert (it->what == IT_GLYPHLESS); |
| 1633 | produce_glyphless_glyph (it, 1, acronym); |
| 1634 | } |
| 1635 | } |
| 1636 | |
| 1637 | done: |
| 1638 | /* Advance current_x by the pixel width as a convenience for |
| 1639 | the caller. */ |
| 1640 | if (it->area == TEXT_AREA) |
| 1641 | it->current_x += it->pixel_width; |
| 1642 | it->ascent = it->max_ascent = it->phys_ascent = it->max_phys_ascent = 0; |
| 1643 | it->descent = it->max_descent = it->phys_descent = it->max_phys_descent = 1; |
| 1644 | } |
| 1645 | |
| 1646 | |
| 1647 | /* Produce a stretch glyph for iterator IT. IT->object is the value |
| 1648 | of the glyph property displayed. The value must be a list |
| 1649 | `(space KEYWORD VALUE ...)' with the following KEYWORD/VALUE pairs |
| 1650 | being recognized: |
| 1651 | |
| 1652 | 1. `:width WIDTH' specifies that the space should be WIDTH * |
| 1653 | canonical char width wide. WIDTH may be an integer or floating |
| 1654 | point number. |
| 1655 | |
| 1656 | 2. `:align-to HPOS' specifies that the space should be wide enough |
| 1657 | to reach HPOS, a value in canonical character units. */ |
| 1658 | |
| 1659 | static void |
| 1660 | produce_stretch_glyph (struct it *it) |
| 1661 | { |
| 1662 | /* (space :width WIDTH ...) */ |
| 1663 | Lisp_Object prop, plist; |
| 1664 | int width = 0, align_to = -1; |
| 1665 | int zero_width_ok_p = 0; |
| 1666 | double tem; |
| 1667 | |
| 1668 | /* List should start with `space'. */ |
| 1669 | xassert (CONSP (it->object) && EQ (XCAR (it->object), Qspace)); |
| 1670 | plist = XCDR (it->object); |
| 1671 | |
| 1672 | /* Compute the width of the stretch. */ |
| 1673 | if ((prop = Fplist_get (plist, QCwidth), !NILP (prop)) |
| 1674 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, 0)) |
| 1675 | { |
| 1676 | /* Absolute width `:width WIDTH' specified and valid. */ |
| 1677 | zero_width_ok_p = 1; |
| 1678 | width = (int)(tem + 0.5); |
| 1679 | } |
| 1680 | else if ((prop = Fplist_get (plist, QCalign_to), !NILP (prop)) |
| 1681 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, &align_to)) |
| 1682 | { |
| 1683 | if (it->glyph_row == NULL || !it->glyph_row->mode_line_p) |
| 1684 | align_to = (align_to < 0 |
| 1685 | ? 0 |
| 1686 | : align_to - window_box_left_offset (it->w, TEXT_AREA)); |
| 1687 | else if (align_to < 0) |
| 1688 | align_to = window_box_left_offset (it->w, TEXT_AREA); |
| 1689 | width = max (0, (int)(tem + 0.5) + align_to - it->current_x); |
| 1690 | zero_width_ok_p = 1; |
| 1691 | } |
| 1692 | else |
| 1693 | /* Nothing specified -> width defaults to canonical char width. */ |
| 1694 | width = FRAME_COLUMN_WIDTH (it->f); |
| 1695 | |
| 1696 | if (width <= 0 && (width < 0 || !zero_width_ok_p)) |
| 1697 | width = 1; |
| 1698 | |
| 1699 | if (width > 0 && it->line_wrap != TRUNCATE |
| 1700 | && it->current_x + width > it->last_visible_x) |
| 1701 | width = it->last_visible_x - it->current_x - 1; |
| 1702 | |
| 1703 | if (width > 0 && it->glyph_row) |
| 1704 | { |
| 1705 | Lisp_Object o_object = it->object; |
| 1706 | Lisp_Object object = it->stack[it->sp - 1].string; |
| 1707 | int n = width; |
| 1708 | |
| 1709 | if (!STRINGP (object)) |
| 1710 | object = it->w->buffer; |
| 1711 | it->object = object; |
| 1712 | it->char_to_display = ' '; |
| 1713 | it->pixel_width = it->len = 1; |
| 1714 | while (n--) |
| 1715 | append_glyph (it); |
| 1716 | it->object = o_object; |
| 1717 | } |
| 1718 | it->pixel_width = width; |
| 1719 | it->nglyphs = width; |
| 1720 | } |
| 1721 | |
| 1722 | |
| 1723 | /* Append glyphs to IT's glyph_row for the composition IT->cmp_id. |
| 1724 | Called from produce_composite_glyph for terminal frames if |
| 1725 | IT->glyph_row != NULL. IT->face_id contains the character's |
| 1726 | face. */ |
| 1727 | |
| 1728 | static void |
| 1729 | append_composite_glyph (struct it *it) |
| 1730 | { |
| 1731 | struct glyph *glyph; |
| 1732 | |
| 1733 | xassert (it->glyph_row); |
| 1734 | glyph = it->glyph_row->glyphs[it->area] + it->glyph_row->used[it->area]; |
| 1735 | if (glyph < it->glyph_row->glyphs[1 + it->area]) |
| 1736 | { |
| 1737 | /* If the glyph row is reversed, we need to prepend the glyph |
| 1738 | rather than append it. */ |
| 1739 | if (it->glyph_row->reversed_p && it->area == TEXT_AREA) |
| 1740 | { |
| 1741 | struct glyph *g; |
| 1742 | |
| 1743 | /* Make room for the new glyph. */ |
| 1744 | for (g = glyph - 1; g >= it->glyph_row->glyphs[it->area]; g--) |
| 1745 | g[1] = *g; |
| 1746 | glyph = it->glyph_row->glyphs[it->area]; |
| 1747 | } |
| 1748 | glyph->type = COMPOSITE_GLYPH; |
| 1749 | glyph->pixel_width = it->pixel_width; |
| 1750 | glyph->u.cmp.id = it->cmp_it.id; |
| 1751 | if (it->cmp_it.ch < 0) |
| 1752 | { |
| 1753 | glyph->u.cmp.automatic = 0; |
| 1754 | glyph->u.cmp.id = it->cmp_it.id; |
| 1755 | } |
| 1756 | else |
| 1757 | { |
| 1758 | glyph->u.cmp.automatic = 1; |
| 1759 | glyph->u.cmp.id = it->cmp_it.id; |
| 1760 | glyph->slice.cmp.from = it->cmp_it.from; |
| 1761 | glyph->slice.cmp.to = it->cmp_it.to - 1; |
| 1762 | } |
| 1763 | |
| 1764 | glyph->face_id = it->face_id; |
| 1765 | glyph->padding_p = 0; |
| 1766 | glyph->charpos = CHARPOS (it->position); |
| 1767 | glyph->object = it->object; |
| 1768 | if (it->bidi_p) |
| 1769 | { |
| 1770 | glyph->resolved_level = it->bidi_it.resolved_level; |
| 1771 | if ((it->bidi_it.type & 7) != it->bidi_it.type) |
| 1772 | abort (); |
| 1773 | glyph->bidi_type = it->bidi_it.type; |
| 1774 | } |
| 1775 | else |
| 1776 | { |
| 1777 | glyph->resolved_level = 0; |
| 1778 | glyph->bidi_type = UNKNOWN_BT; |
| 1779 | } |
| 1780 | |
| 1781 | ++it->glyph_row->used[it->area]; |
| 1782 | ++glyph; |
| 1783 | } |
| 1784 | } |
| 1785 | |
| 1786 | |
| 1787 | /* Produce a composite glyph for iterator IT. IT->cmp_id is the ID of |
| 1788 | the composition. We simply produces components of the composition |
| 1789 | assuming that the terminal has a capability to layout/render it |
| 1790 | correctly. */ |
| 1791 | |
| 1792 | static void |
| 1793 | produce_composite_glyph (struct it *it) |
| 1794 | { |
| 1795 | if (it->cmp_it.ch < 0) |
| 1796 | { |
| 1797 | struct composition *cmp = composition_table[it->cmp_it.id]; |
| 1798 | |
| 1799 | it->pixel_width = cmp->width; |
| 1800 | } |
| 1801 | else |
| 1802 | { |
| 1803 | Lisp_Object gstring = composition_gstring_from_id (it->cmp_it.id); |
| 1804 | |
| 1805 | it->pixel_width = composition_gstring_width (gstring, it->cmp_it.from, |
| 1806 | it->cmp_it.to, NULL); |
| 1807 | } |
| 1808 | it->nglyphs = 1; |
| 1809 | if (it->glyph_row) |
| 1810 | append_composite_glyph (it); |
| 1811 | } |
| 1812 | |
| 1813 | |
| 1814 | /* Append a glyph for a glyphless character to IT->glyph_row. FACE_ID |
| 1815 | is a face ID to be used for the glyph. What is actually appended |
| 1816 | are glyphs of type CHAR_GLYPH whose characters are in STR (which |
| 1817 | comes from it->nglyphs bytes). */ |
| 1818 | |
| 1819 | static void |
| 1820 | append_glyphless_glyph (struct it *it, int face_id, const char *str) |
| 1821 | { |
| 1822 | struct glyph *glyph, *end; |
| 1823 | int i; |
| 1824 | |
| 1825 | xassert (it->glyph_row); |
| 1826 | glyph = it->glyph_row->glyphs[it->area] + it->glyph_row->used[it->area]; |
| 1827 | end = it->glyph_row->glyphs[1 + it->area]; |
| 1828 | |
| 1829 | /* If the glyph row is reversed, we need to prepend the glyph rather |
| 1830 | than append it. */ |
| 1831 | if (it->glyph_row->reversed_p && it->area == TEXT_AREA) |
| 1832 | { |
| 1833 | struct glyph *g; |
| 1834 | int move_by = it->pixel_width; |
| 1835 | |
| 1836 | /* Make room for the new glyphs. */ |
| 1837 | if (move_by > end - glyph) /* don't overstep end of this area */ |
| 1838 | move_by = end - glyph; |
| 1839 | for (g = glyph - 1; g >= it->glyph_row->glyphs[it->area]; g--) |
| 1840 | g[move_by] = *g; |
| 1841 | glyph = it->glyph_row->glyphs[it->area]; |
| 1842 | end = glyph + move_by; |
| 1843 | } |
| 1844 | |
| 1845 | if (glyph >= end) |
| 1846 | return; |
| 1847 | glyph->type = CHAR_GLYPH; |
| 1848 | glyph->pixel_width = 1; |
| 1849 | glyph->face_id = face_id; |
| 1850 | glyph->padding_p = 0; |
| 1851 | glyph->charpos = CHARPOS (it->position); |
| 1852 | glyph->object = it->object; |
| 1853 | if (it->bidi_p) |
| 1854 | { |
| 1855 | glyph->resolved_level = it->bidi_it.resolved_level; |
| 1856 | if ((it->bidi_it.type & 7) != it->bidi_it.type) |
| 1857 | abort (); |
| 1858 | glyph->bidi_type = it->bidi_it.type; |
| 1859 | } |
| 1860 | else |
| 1861 | { |
| 1862 | glyph->resolved_level = 0; |
| 1863 | glyph->bidi_type = UNKNOWN_BT; |
| 1864 | } |
| 1865 | |
| 1866 | /* BIDI Note: we put the glyphs of characters left to right, even in |
| 1867 | the REVERSED_P case because we write to the terminal |
| 1868 | left-to-right. */ |
| 1869 | for (i = 0; i < it->nglyphs && glyph < end; ++i) |
| 1870 | { |
| 1871 | if (i > 0) |
| 1872 | glyph[0] = glyph[-1]; |
| 1873 | glyph->u.ch = str[i]; |
| 1874 | ++it->glyph_row->used[it->area]; |
| 1875 | ++glyph; |
| 1876 | } |
| 1877 | } |
| 1878 | |
| 1879 | /* Produce glyphs for a glyphless character for iterator IT. |
| 1880 | IT->glyphless_method specifies which method to use for displaying |
| 1881 | the character. See the description of enum |
| 1882 | glyphless_display_method in dispextern.h for the details. |
| 1883 | |
| 1884 | FOR_NO_FONT is nonzero if and only if this is for a character that |
| 1885 | is not supproted by the coding system of the terminal. ACRONYM, if |
| 1886 | non-nil, is an acronym string for the character. |
| 1887 | |
| 1888 | The glyphs actually produced are of type CHAR_GLYPH. */ |
| 1889 | |
| 1890 | static void |
| 1891 | produce_glyphless_glyph (struct it *it, int for_no_font, Lisp_Object acronym) |
| 1892 | { |
| 1893 | int face_id; |
| 1894 | int len; |
| 1895 | char buf[9]; |
| 1896 | char const *str = " "; |
| 1897 | |
| 1898 | /* Get a face ID for the glyph by utilizing a cache (the same way as |
| 1899 | done for `escape-glyph' in get_next_display_element). */ |
| 1900 | if (it->f == last_glyphless_glyph_frame |
| 1901 | && it->face_id == last_glyphless_glyph_face_id) |
| 1902 | { |
| 1903 | face_id = last_glyphless_glyph_merged_face_id; |
| 1904 | } |
| 1905 | else |
| 1906 | { |
| 1907 | /* Merge the `glyphless-char' face into the current face. */ |
| 1908 | face_id = merge_faces (it->f, Qglyphless_char, 0, it->face_id); |
| 1909 | last_glyphless_glyph_frame = it->f; |
| 1910 | last_glyphless_glyph_face_id = it->face_id; |
| 1911 | last_glyphless_glyph_merged_face_id = face_id; |
| 1912 | } |
| 1913 | |
| 1914 | if (it->glyphless_method == GLYPHLESS_DISPLAY_THIN_SPACE) |
| 1915 | { |
| 1916 | /* As there's no way to produce a thin space, we produce a space |
| 1917 | of canonical width. */ |
| 1918 | len = 1; |
| 1919 | } |
| 1920 | else if (it->glyphless_method == GLYPHLESS_DISPLAY_EMPTY_BOX) |
| 1921 | { |
| 1922 | len = CHAR_WIDTH (it->c); |
| 1923 | if (len == 0) |
| 1924 | len = 1; |
| 1925 | else if (len > 4) |
| 1926 | len = 4; |
| 1927 | sprintf (buf, "[%.*s]", len, str); |
| 1928 | len += 2; |
| 1929 | str = buf; |
| 1930 | } |
| 1931 | else |
| 1932 | { |
| 1933 | if (it->glyphless_method == GLYPHLESS_DISPLAY_ACRONYM) |
| 1934 | { |
| 1935 | if (! STRINGP (acronym) && CHAR_TABLE_P (Vglyphless_char_display)) |
| 1936 | acronym = CHAR_TABLE_REF (Vglyphless_char_display, it->c); |
| 1937 | buf[0] = '['; |
| 1938 | str = STRINGP (acronym) ? SSDATA (acronym) : ""; |
| 1939 | for (len = 0; len < 6 && str[len] && ASCII_BYTE_P (str[len]); len++) |
| 1940 | buf[1 + len] = str[len]; |
| 1941 | buf[1 + len] = ']'; |
| 1942 | len += 2; |
| 1943 | } |
| 1944 | else |
| 1945 | { |
| 1946 | xassert (it->glyphless_method == GLYPHLESS_DISPLAY_HEX_CODE); |
| 1947 | len = (it->c < 0x10000 ? sprintf (buf, "\\u%04X", it->c) |
| 1948 | : it->c <= MAX_UNICODE_CHAR ? sprintf (buf, "\\U%06X", it->c) |
| 1949 | : sprintf (buf, "\\x%06X", it->c)); |
| 1950 | } |
| 1951 | str = buf; |
| 1952 | } |
| 1953 | |
| 1954 | it->pixel_width = len; |
| 1955 | it->nglyphs = len; |
| 1956 | if (it->glyph_row) |
| 1957 | append_glyphless_glyph (it, face_id, str); |
| 1958 | } |
| 1959 | |
| 1960 | |
| 1961 | /* Get information about special display element WHAT in an |
| 1962 | environment described by IT. WHAT is one of IT_TRUNCATION or |
| 1963 | IT_CONTINUATION. Maybe produce glyphs for WHAT if IT has a |
| 1964 | non-null glyph_row member. This function ensures that fields like |
| 1965 | face_id, c, len of IT are left untouched. */ |
| 1966 | |
| 1967 | void |
| 1968 | produce_special_glyphs (struct it *it, enum display_element_type what) |
| 1969 | { |
| 1970 | struct it temp_it; |
| 1971 | Lisp_Object gc; |
| 1972 | GLYPH glyph; |
| 1973 | |
| 1974 | temp_it = *it; |
| 1975 | temp_it.dp = NULL; |
| 1976 | temp_it.what = IT_CHARACTER; |
| 1977 | temp_it.len = 1; |
| 1978 | temp_it.object = make_number (0); |
| 1979 | memset (&temp_it.current, 0, sizeof temp_it.current); |
| 1980 | |
| 1981 | if (what == IT_CONTINUATION) |
| 1982 | { |
| 1983 | /* Continuation glyph. For R2L lines, we mirror it by hand. */ |
| 1984 | if (it->bidi_it.paragraph_dir == R2L) |
| 1985 | SET_GLYPH_FROM_CHAR (glyph, '/'); |
| 1986 | else |
| 1987 | SET_GLYPH_FROM_CHAR (glyph, '\\'); |
| 1988 | if (it->dp |
| 1989 | && (gc = DISP_CONTINUE_GLYPH (it->dp), GLYPH_CODE_P (gc)) |
| 1990 | && GLYPH_CODE_CHAR_VALID_P (gc)) |
| 1991 | { |
| 1992 | /* FIXME: Should we mirror GC for R2L lines? */ |
| 1993 | SET_GLYPH_FROM_GLYPH_CODE (glyph, gc); |
| 1994 | spec_glyph_lookup_face (XWINDOW (it->window), &glyph); |
| 1995 | } |
| 1996 | } |
| 1997 | else if (what == IT_TRUNCATION) |
| 1998 | { |
| 1999 | /* Truncation glyph. */ |
| 2000 | SET_GLYPH_FROM_CHAR (glyph, '$'); |
| 2001 | if (it->dp |
| 2002 | && (gc = DISP_TRUNC_GLYPH (it->dp), GLYPH_CODE_P (gc)) |
| 2003 | && GLYPH_CODE_CHAR_VALID_P (gc)) |
| 2004 | { |
| 2005 | /* FIXME: Should we mirror GC for R2L lines? */ |
| 2006 | SET_GLYPH_FROM_GLYPH_CODE (glyph, gc); |
| 2007 | spec_glyph_lookup_face (XWINDOW (it->window), &glyph); |
| 2008 | } |
| 2009 | } |
| 2010 | else |
| 2011 | abort (); |
| 2012 | |
| 2013 | temp_it.c = temp_it.char_to_display = GLYPH_CHAR (glyph); |
| 2014 | temp_it.face_id = GLYPH_FACE (glyph); |
| 2015 | temp_it.len = CHAR_BYTES (temp_it.c); |
| 2016 | |
| 2017 | produce_glyphs (&temp_it); |
| 2018 | it->pixel_width = temp_it.pixel_width; |
| 2019 | it->nglyphs = temp_it.pixel_width; |
| 2020 | } |
| 2021 | |
| 2022 | |
| 2023 | \f |
| 2024 | /*********************************************************************** |
| 2025 | Faces |
| 2026 | ***********************************************************************/ |
| 2027 | |
| 2028 | /* Value is non-zero if attribute ATTR may be used. ATTR should be |
| 2029 | one of the enumerators from enum no_color_bit, or a bit set built |
| 2030 | from them. Some display attributes may not be used together with |
| 2031 | color; the termcap capability `NC' specifies which ones. */ |
| 2032 | |
| 2033 | #define MAY_USE_WITH_COLORS_P(tty, ATTR) \ |
| 2034 | (tty->TN_max_colors > 0 \ |
| 2035 | ? (tty->TN_no_color_video & (ATTR)) == 0 \ |
| 2036 | : 1) |
| 2037 | |
| 2038 | /* Turn appearances of face FACE_ID on tty frame F on. |
| 2039 | FACE_ID is a realized face ID number, in the face cache. */ |
| 2040 | |
| 2041 | static void |
| 2042 | turn_on_face (struct frame *f, int face_id) |
| 2043 | { |
| 2044 | struct face *face = FACE_FROM_ID (f, face_id); |
| 2045 | long fg = face->foreground; |
| 2046 | long bg = face->background; |
| 2047 | struct tty_display_info *tty = FRAME_TTY (f); |
| 2048 | |
| 2049 | /* Do this first because TS_end_standout_mode may be the same |
| 2050 | as TS_exit_attribute_mode, which turns all appearances off. */ |
| 2051 | if (MAY_USE_WITH_COLORS_P (tty, NC_REVERSE)) |
| 2052 | { |
| 2053 | if (tty->TN_max_colors > 0) |
| 2054 | { |
| 2055 | if (fg >= 0 && bg >= 0) |
| 2056 | { |
| 2057 | /* If the terminal supports colors, we can set them |
| 2058 | below without using reverse video. The face's fg |
| 2059 | and bg colors are set as they should appear on |
| 2060 | the screen, i.e. they take the inverse-video'ness |
| 2061 | of the face already into account. */ |
| 2062 | } |
| 2063 | else if (inverse_video) |
| 2064 | { |
| 2065 | if (fg == FACE_TTY_DEFAULT_FG_COLOR |
| 2066 | || bg == FACE_TTY_DEFAULT_BG_COLOR) |
| 2067 | tty_toggle_highlight (tty); |
| 2068 | } |
| 2069 | else |
| 2070 | { |
| 2071 | if (fg == FACE_TTY_DEFAULT_BG_COLOR |
| 2072 | || bg == FACE_TTY_DEFAULT_FG_COLOR) |
| 2073 | tty_toggle_highlight (tty); |
| 2074 | } |
| 2075 | } |
| 2076 | else |
| 2077 | { |
| 2078 | /* If we can't display colors, use reverse video |
| 2079 | if the face specifies that. */ |
| 2080 | if (inverse_video) |
| 2081 | { |
| 2082 | if (fg == FACE_TTY_DEFAULT_FG_COLOR |
| 2083 | || bg == FACE_TTY_DEFAULT_BG_COLOR) |
| 2084 | tty_toggle_highlight (tty); |
| 2085 | } |
| 2086 | else |
| 2087 | { |
| 2088 | if (fg == FACE_TTY_DEFAULT_BG_COLOR |
| 2089 | || bg == FACE_TTY_DEFAULT_FG_COLOR) |
| 2090 | tty_toggle_highlight (tty); |
| 2091 | } |
| 2092 | } |
| 2093 | } |
| 2094 | |
| 2095 | if (face->tty_bold_p && MAY_USE_WITH_COLORS_P (tty, NC_BOLD)) |
| 2096 | OUTPUT1_IF (tty, tty->TS_enter_bold_mode); |
| 2097 | |
| 2098 | if (face->tty_dim_p && MAY_USE_WITH_COLORS_P (tty, NC_DIM)) |
| 2099 | OUTPUT1_IF (tty, tty->TS_enter_dim_mode); |
| 2100 | |
| 2101 | /* Alternate charset and blinking not yet used. */ |
| 2102 | if (face->tty_alt_charset_p |
| 2103 | && MAY_USE_WITH_COLORS_P (tty, NC_ALT_CHARSET)) |
| 2104 | OUTPUT1_IF (tty, tty->TS_enter_alt_charset_mode); |
| 2105 | |
| 2106 | if (face->tty_blinking_p |
| 2107 | && MAY_USE_WITH_COLORS_P (tty, NC_BLINK)) |
| 2108 | OUTPUT1_IF (tty, tty->TS_enter_blink_mode); |
| 2109 | |
| 2110 | if (face->tty_underline_p && MAY_USE_WITH_COLORS_P (tty, NC_UNDERLINE)) |
| 2111 | OUTPUT1_IF (tty, tty->TS_enter_underline_mode); |
| 2112 | |
| 2113 | if (tty->TN_max_colors > 0) |
| 2114 | { |
| 2115 | const char *ts; |
| 2116 | char *p; |
| 2117 | |
| 2118 | ts = tty->standout_mode ? tty->TS_set_background : tty->TS_set_foreground; |
| 2119 | if (fg >= 0 && ts) |
| 2120 | { |
| 2121 | p = tparam (ts, NULL, 0, (int) fg, 0, 0, 0); |
| 2122 | OUTPUT (tty, p); |
| 2123 | xfree (p); |
| 2124 | } |
| 2125 | |
| 2126 | ts = tty->standout_mode ? tty->TS_set_foreground : tty->TS_set_background; |
| 2127 | if (bg >= 0 && ts) |
| 2128 | { |
| 2129 | p = tparam (ts, NULL, 0, (int) bg, 0, 0, 0); |
| 2130 | OUTPUT (tty, p); |
| 2131 | xfree (p); |
| 2132 | } |
| 2133 | } |
| 2134 | } |
| 2135 | |
| 2136 | |
| 2137 | /* Turn off appearances of face FACE_ID on tty frame F. */ |
| 2138 | |
| 2139 | static void |
| 2140 | turn_off_face (struct frame *f, int face_id) |
| 2141 | { |
| 2142 | struct face *face = FACE_FROM_ID (f, face_id); |
| 2143 | struct tty_display_info *tty = FRAME_TTY (f); |
| 2144 | |
| 2145 | xassert (face != NULL); |
| 2146 | |
| 2147 | if (tty->TS_exit_attribute_mode) |
| 2148 | { |
| 2149 | /* Capability "me" will turn off appearance modes double-bright, |
| 2150 | half-bright, reverse-video, standout, underline. It may or |
| 2151 | may not turn off alt-char-mode. */ |
| 2152 | if (face->tty_bold_p |
| 2153 | || face->tty_dim_p |
| 2154 | || face->tty_reverse_p |
| 2155 | || face->tty_alt_charset_p |
| 2156 | || face->tty_blinking_p |
| 2157 | || face->tty_underline_p) |
| 2158 | { |
| 2159 | OUTPUT1_IF (tty, tty->TS_exit_attribute_mode); |
| 2160 | if (strcmp (tty->TS_exit_attribute_mode, tty->TS_end_standout_mode) == 0) |
| 2161 | tty->standout_mode = 0; |
| 2162 | } |
| 2163 | |
| 2164 | if (face->tty_alt_charset_p) |
| 2165 | OUTPUT_IF (tty, tty->TS_exit_alt_charset_mode); |
| 2166 | } |
| 2167 | else |
| 2168 | { |
| 2169 | /* If we don't have "me" we can only have those appearances |
| 2170 | that have exit sequences defined. */ |
| 2171 | if (face->tty_alt_charset_p) |
| 2172 | OUTPUT_IF (tty, tty->TS_exit_alt_charset_mode); |
| 2173 | |
| 2174 | if (face->tty_underline_p) |
| 2175 | OUTPUT_IF (tty, tty->TS_exit_underline_mode); |
| 2176 | } |
| 2177 | |
| 2178 | /* Switch back to default colors. */ |
| 2179 | if (tty->TN_max_colors > 0 |
| 2180 | && ((face->foreground != FACE_TTY_DEFAULT_COLOR |
| 2181 | && face->foreground != FACE_TTY_DEFAULT_FG_COLOR) |
| 2182 | || (face->background != FACE_TTY_DEFAULT_COLOR |
| 2183 | && face->background != FACE_TTY_DEFAULT_BG_COLOR))) |
| 2184 | OUTPUT1_IF (tty, tty->TS_orig_pair); |
| 2185 | } |
| 2186 | |
| 2187 | |
| 2188 | /* Return non-zero if the terminal on frame F supports all of the |
| 2189 | capabilities in CAPS simultaneously, with foreground and background |
| 2190 | colors FG and BG. */ |
| 2191 | |
| 2192 | int |
| 2193 | tty_capable_p (struct tty_display_info *tty, unsigned int caps, |
| 2194 | unsigned long fg, unsigned long bg) |
| 2195 | { |
| 2196 | #define TTY_CAPABLE_P_TRY(tty, cap, TS, NC_bit) \ |
| 2197 | if ((caps & (cap)) && (!(TS) || !MAY_USE_WITH_COLORS_P(tty, NC_bit))) \ |
| 2198 | return 0; |
| 2199 | |
| 2200 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_INVERSE, tty->TS_standout_mode, NC_REVERSE); |
| 2201 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_UNDERLINE, tty->TS_enter_underline_mode, NC_UNDERLINE); |
| 2202 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_BOLD, tty->TS_enter_bold_mode, NC_BOLD); |
| 2203 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_DIM, tty->TS_enter_dim_mode, NC_DIM); |
| 2204 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_BLINK, tty->TS_enter_blink_mode, NC_BLINK); |
| 2205 | TTY_CAPABLE_P_TRY (tty, TTY_CAP_ALT_CHARSET, tty->TS_enter_alt_charset_mode, NC_ALT_CHARSET); |
| 2206 | |
| 2207 | /* We can do it! */ |
| 2208 | return 1; |
| 2209 | } |
| 2210 | |
| 2211 | /* Return non-zero if the terminal is capable to display colors. */ |
| 2212 | |
| 2213 | DEFUN ("tty-display-color-p", Ftty_display_color_p, Stty_display_color_p, |
| 2214 | 0, 1, 0, |
| 2215 | doc: /* Return non-nil if the tty device TERMINAL can display colors. |
| 2216 | |
| 2217 | TERMINAL can be a terminal object, a frame, or nil (meaning the |
| 2218 | selected frame's terminal). This function always returns nil if |
| 2219 | TERMINAL does not refer to a text-only terminal. */) |
| 2220 | (Lisp_Object terminal) |
| 2221 | { |
| 2222 | struct terminal *t = get_tty_terminal (terminal, 0); |
| 2223 | if (!t) |
| 2224 | return Qnil; |
| 2225 | else |
| 2226 | return t->display_info.tty->TN_max_colors > 0 ? Qt : Qnil; |
| 2227 | } |
| 2228 | |
| 2229 | /* Return the number of supported colors. */ |
| 2230 | DEFUN ("tty-display-color-cells", Ftty_display_color_cells, |
| 2231 | Stty_display_color_cells, 0, 1, 0, |
| 2232 | doc: /* Return the number of colors supported by the tty device TERMINAL. |
| 2233 | |
| 2234 | TERMINAL can be a terminal object, a frame, or nil (meaning the |
| 2235 | selected frame's terminal). This function always returns 0 if |
| 2236 | TERMINAL does not refer to a text-only terminal. */) |
| 2237 | (Lisp_Object terminal) |
| 2238 | { |
| 2239 | struct terminal *t = get_tty_terminal (terminal, 0); |
| 2240 | if (!t) |
| 2241 | return make_number (0); |
| 2242 | else |
| 2243 | return make_number (t->display_info.tty->TN_max_colors); |
| 2244 | } |
| 2245 | |
| 2246 | #ifndef DOS_NT |
| 2247 | |
| 2248 | /* Declare here rather than in the function, as in the rest of Emacs, |
| 2249 | to work around an HPUX compiler bug (?). See |
| 2250 | http://lists.gnu.org/archive/html/emacs-devel/2007-08/msg00410.html */ |
| 2251 | static int default_max_colors; |
| 2252 | static int default_max_pairs; |
| 2253 | static int default_no_color_video; |
| 2254 | static char *default_orig_pair; |
| 2255 | static char *default_set_foreground; |
| 2256 | static char *default_set_background; |
| 2257 | |
| 2258 | /* Save or restore the default color-related capabilities of this |
| 2259 | terminal. */ |
| 2260 | static void |
| 2261 | tty_default_color_capabilities (struct tty_display_info *tty, int save) |
| 2262 | { |
| 2263 | |
| 2264 | if (save) |
| 2265 | { |
| 2266 | xfree (default_orig_pair); |
| 2267 | default_orig_pair = tty->TS_orig_pair ? xstrdup (tty->TS_orig_pair) : NULL; |
| 2268 | |
| 2269 | xfree (default_set_foreground); |
| 2270 | default_set_foreground = tty->TS_set_foreground ? xstrdup (tty->TS_set_foreground) |
| 2271 | : NULL; |
| 2272 | |
| 2273 | xfree (default_set_background); |
| 2274 | default_set_background = tty->TS_set_background ? xstrdup (tty->TS_set_background) |
| 2275 | : NULL; |
| 2276 | |
| 2277 | default_max_colors = tty->TN_max_colors; |
| 2278 | default_max_pairs = tty->TN_max_pairs; |
| 2279 | default_no_color_video = tty->TN_no_color_video; |
| 2280 | } |
| 2281 | else |
| 2282 | { |
| 2283 | tty->TS_orig_pair = default_orig_pair; |
| 2284 | tty->TS_set_foreground = default_set_foreground; |
| 2285 | tty->TS_set_background = default_set_background; |
| 2286 | tty->TN_max_colors = default_max_colors; |
| 2287 | tty->TN_max_pairs = default_max_pairs; |
| 2288 | tty->TN_no_color_video = default_no_color_video; |
| 2289 | } |
| 2290 | } |
| 2291 | |
| 2292 | /* Setup one of the standard tty color schemes according to MODE. |
| 2293 | MODE's value is generally the number of colors which we want to |
| 2294 | support; zero means set up for the default capabilities, the ones |
| 2295 | we saw at init_tty time; -1 means turn off color support. */ |
| 2296 | static void |
| 2297 | tty_setup_colors (struct tty_display_info *tty, int mode) |
| 2298 | { |
| 2299 | /* Canonicalize all negative values of MODE. */ |
| 2300 | if (mode < -1) |
| 2301 | mode = -1; |
| 2302 | |
| 2303 | switch (mode) |
| 2304 | { |
| 2305 | case -1: /* no colors at all */ |
| 2306 | tty->TN_max_colors = 0; |
| 2307 | tty->TN_max_pairs = 0; |
| 2308 | tty->TN_no_color_video = 0; |
| 2309 | tty->TS_set_foreground = tty->TS_set_background = tty->TS_orig_pair = NULL; |
| 2310 | break; |
| 2311 | case 0: /* default colors, if any */ |
| 2312 | default: |
| 2313 | tty_default_color_capabilities (tty, 0); |
| 2314 | break; |
| 2315 | case 8: /* 8 standard ANSI colors */ |
| 2316 | tty->TS_orig_pair = "\033[0m"; |
| 2317 | #ifdef TERMINFO |
| 2318 | tty->TS_set_foreground = "\033[3%p1%dm"; |
| 2319 | tty->TS_set_background = "\033[4%p1%dm"; |
| 2320 | #else |
| 2321 | tty->TS_set_foreground = "\033[3%dm"; |
| 2322 | tty->TS_set_background = "\033[4%dm"; |
| 2323 | #endif |
| 2324 | tty->TN_max_colors = 8; |
| 2325 | tty->TN_max_pairs = 64; |
| 2326 | tty->TN_no_color_video = 0; |
| 2327 | break; |
| 2328 | } |
| 2329 | } |
| 2330 | |
| 2331 | void |
| 2332 | set_tty_color_mode (struct tty_display_info *tty, struct frame *f) |
| 2333 | { |
| 2334 | Lisp_Object tem, val; |
| 2335 | Lisp_Object color_mode; |
| 2336 | int mode; |
| 2337 | Lisp_Object tty_color_mode_alist |
| 2338 | = Fintern_soft (build_string ("tty-color-mode-alist"), Qnil); |
| 2339 | |
| 2340 | tem = assq_no_quit (Qtty_color_mode, f->param_alist); |
| 2341 | val = CONSP (tem) ? XCDR (tem) : Qnil; |
| 2342 | |
| 2343 | if (INTEGERP (val)) |
| 2344 | color_mode = val; |
| 2345 | else if (SYMBOLP (tty_color_mode_alist)) |
| 2346 | { |
| 2347 | tem = Fassq (val, Fsymbol_value (tty_color_mode_alist)); |
| 2348 | color_mode = CONSP (tem) ? XCDR (tem) : Qnil; |
| 2349 | } |
| 2350 | else |
| 2351 | color_mode = Qnil; |
| 2352 | |
| 2353 | mode = INTEGERP (color_mode) ? XINT (color_mode) : 0; |
| 2354 | |
| 2355 | if (mode != tty->previous_color_mode) |
| 2356 | { |
| 2357 | Lisp_Object funsym = intern ("tty-set-up-initial-frame-faces"); |
| 2358 | tty->previous_color_mode = mode; |
| 2359 | tty_setup_colors (tty , mode); |
| 2360 | /* This recomputes all the faces given the new color definitions. */ |
| 2361 | safe_call (1, &funsym); |
| 2362 | } |
| 2363 | } |
| 2364 | |
| 2365 | #endif /* !DOS_NT */ |
| 2366 | |
| 2367 | \f |
| 2368 | |
| 2369 | /* Return the tty display object specified by TERMINAL. */ |
| 2370 | |
| 2371 | struct terminal * |
| 2372 | get_tty_terminal (Lisp_Object terminal, int throw) |
| 2373 | { |
| 2374 | struct terminal *t = get_terminal (terminal, throw); |
| 2375 | |
| 2376 | if (t && t->type != output_termcap && t->type != output_msdos_raw) |
| 2377 | { |
| 2378 | if (throw) |
| 2379 | error ("Device %d is not a termcap terminal device", t->id); |
| 2380 | else |
| 2381 | return NULL; |
| 2382 | } |
| 2383 | |
| 2384 | return t; |
| 2385 | } |
| 2386 | |
| 2387 | /* Return an active termcap device that uses the tty device with the |
| 2388 | given name. |
| 2389 | |
| 2390 | This function ignores suspended devices. |
| 2391 | |
| 2392 | Returns NULL if the named terminal device is not opened. */ |
| 2393 | |
| 2394 | struct terminal * |
| 2395 | get_named_tty (const char *name) |
| 2396 | { |
| 2397 | struct terminal *t; |
| 2398 | |
| 2399 | if (!name) |
| 2400 | abort (); |
| 2401 | |
| 2402 | for (t = terminal_list; t; t = t->next_terminal) |
| 2403 | { |
| 2404 | if ((t->type == output_termcap || t->type == output_msdos_raw) |
| 2405 | && !strcmp (t->display_info.tty->name, name) |
| 2406 | && TERMINAL_ACTIVE_P (t)) |
| 2407 | return t; |
| 2408 | } |
| 2409 | |
| 2410 | return 0; |
| 2411 | } |
| 2412 | |
| 2413 | \f |
| 2414 | DEFUE ("tty-type", Ftty_type, Stty_type, 0, 1, 0, |
| 2415 | doc: /* Return the type of the tty device that TERMINAL uses. |
| 2416 | Returns nil if TERMINAL is not on a tty device. |
| 2417 | |
| 2418 | TERMINAL can be a terminal object, a frame, or nil (meaning the |
| 2419 | selected frame's terminal). */) |
| 2420 | (Lisp_Object terminal) |
| 2421 | { |
| 2422 | struct terminal *t = get_terminal (terminal, 1); |
| 2423 | |
| 2424 | if (t->type != output_termcap && t->type != output_msdos_raw) |
| 2425 | return Qnil; |
| 2426 | |
| 2427 | if (t->display_info.tty->type) |
| 2428 | return build_string (t->display_info.tty->type); |
| 2429 | else |
| 2430 | return Qnil; |
| 2431 | } |
| 2432 | |
| 2433 | DEFUN ("controlling-tty-p", Fcontrolling_tty_p, Scontrolling_tty_p, 0, 1, 0, |
| 2434 | doc: /* Return non-nil if TERMINAL is the controlling tty of the Emacs process. |
| 2435 | |
| 2436 | TERMINAL can be a terminal object, a frame, or nil (meaning the |
| 2437 | selected frame's terminal). This function always returns nil if |
| 2438 | TERMINAL is not on a tty device. */) |
| 2439 | (Lisp_Object terminal) |
| 2440 | { |
| 2441 | struct terminal *t = get_terminal (terminal, 1); |
| 2442 | |
| 2443 | if ((t->type != output_termcap && t->type != output_msdos_raw) |
| 2444 | || strcmp (t->display_info.tty->name, DEV_TTY) != 0) |
| 2445 | return Qnil; |
| 2446 | else |
| 2447 | return Qt; |
| 2448 | } |
| 2449 | |
| 2450 | DEFUN ("tty-no-underline", Ftty_no_underline, Stty_no_underline, 0, 1, 0, |
| 2451 | doc: /* Declare that the tty used by TERMINAL does not handle underlining. |
| 2452 | This is used to override the terminfo data, for certain terminals that |
| 2453 | do not really do underlining, but say that they do. This function has |
| 2454 | no effect if used on a non-tty terminal. |
| 2455 | |
| 2456 | TERMINAL can be a terminal object, a frame or nil (meaning the |
| 2457 | selected frame's terminal). This function always returns nil if |
| 2458 | TERMINAL does not refer to a text-only terminal. */) |
| 2459 | (Lisp_Object terminal) |
| 2460 | { |
| 2461 | struct terminal *t = get_terminal (terminal, 1); |
| 2462 | |
| 2463 | if (t->type == output_termcap) |
| 2464 | t->display_info.tty->TS_enter_underline_mode = 0; |
| 2465 | return Qnil; |
| 2466 | } |
| 2467 | |
| 2468 | \f |
| 2469 | |
| 2470 | DEFUN ("suspend-tty", Fsuspend_tty, Ssuspend_tty, 0, 1, 0, |
| 2471 | doc: /* Suspend the terminal device TTY. |
| 2472 | |
| 2473 | The device is restored to its default state, and Emacs ceases all |
| 2474 | access to the tty device. Frames that use the device are not deleted, |
| 2475 | but input is not read from them and if they change, their display is |
| 2476 | not updated. |
| 2477 | |
| 2478 | TTY may be a terminal object, a frame, or nil for the terminal device |
| 2479 | of the currently selected frame. |
| 2480 | |
| 2481 | This function runs `suspend-tty-functions' after suspending the |
| 2482 | device. The functions are run with one arg, the id of the suspended |
| 2483 | terminal device. |
| 2484 | |
| 2485 | `suspend-tty' does nothing if it is called on a device that is already |
| 2486 | suspended. |
| 2487 | |
| 2488 | A suspended tty may be resumed by calling `resume-tty' on it. */) |
| 2489 | (Lisp_Object tty) |
| 2490 | { |
| 2491 | struct terminal *t = get_tty_terminal (tty, 1); |
| 2492 | FILE *f; |
| 2493 | |
| 2494 | if (!t) |
| 2495 | error ("Unknown tty device"); |
| 2496 | |
| 2497 | f = t->display_info.tty->input; |
| 2498 | |
| 2499 | if (f) |
| 2500 | { |
| 2501 | /* First run `suspend-tty-functions' and then clean up the tty |
| 2502 | state because `suspend-tty-functions' might need to change |
| 2503 | the tty state. */ |
| 2504 | Lisp_Object args[2]; |
| 2505 | args[0] = intern ("suspend-tty-functions"); |
| 2506 | XSETTERMINAL (args[1], t); |
| 2507 | Frun_hook_with_args (2, args); |
| 2508 | |
| 2509 | reset_sys_modes (t->display_info.tty); |
| 2510 | delete_keyboard_wait_descriptor (fileno (f)); |
| 2511 | |
| 2512 | #ifndef MSDOS |
| 2513 | fclose (f); |
| 2514 | if (f != t->display_info.tty->output) |
| 2515 | fclose (t->display_info.tty->output); |
| 2516 | #endif |
| 2517 | |
| 2518 | t->display_info.tty->input = 0; |
| 2519 | t->display_info.tty->output = 0; |
| 2520 | |
| 2521 | if (FRAMEP (t->display_info.tty->top_frame)) |
| 2522 | FRAME_SET_VISIBLE (XFRAME (t->display_info.tty->top_frame), 0); |
| 2523 | |
| 2524 | } |
| 2525 | |
| 2526 | /* Clear display hooks to prevent further output. */ |
| 2527 | clear_tty_hooks (t); |
| 2528 | |
| 2529 | return Qnil; |
| 2530 | } |
| 2531 | |
| 2532 | DEFUN ("resume-tty", Fresume_tty, Sresume_tty, 0, 1, 0, |
| 2533 | doc: /* Resume the previously suspended terminal device TTY. |
| 2534 | The terminal is opened and reinitialized. Frames that are on the |
| 2535 | suspended terminal are revived. |
| 2536 | |
| 2537 | It is an error to resume a terminal while another terminal is active |
| 2538 | on the same device. |
| 2539 | |
| 2540 | This function runs `resume-tty-functions' after resuming the terminal. |
| 2541 | The functions are run with one arg, the id of the resumed terminal |
| 2542 | device. |
| 2543 | |
| 2544 | `resume-tty' does nothing if it is called on a device that is not |
| 2545 | suspended. |
| 2546 | |
| 2547 | TTY may be a terminal object, a frame, or nil (meaning the selected |
| 2548 | frame's terminal). */) |
| 2549 | (Lisp_Object tty) |
| 2550 | { |
| 2551 | struct terminal *t = get_tty_terminal (tty, 1); |
| 2552 | int fd; |
| 2553 | |
| 2554 | if (!t) |
| 2555 | error ("Unknown tty device"); |
| 2556 | |
| 2557 | if (!t->display_info.tty->input) |
| 2558 | { |
| 2559 | if (get_named_tty (t->display_info.tty->name)) |
| 2560 | error ("Cannot resume display while another display is active on the same device"); |
| 2561 | |
| 2562 | #ifdef MSDOS |
| 2563 | t->display_info.tty->output = stdout; |
| 2564 | t->display_info.tty->input = stdin; |
| 2565 | #else /* !MSDOS */ |
| 2566 | fd = emacs_open (t->display_info.tty->name, O_RDWR | O_NOCTTY, 0); |
| 2567 | |
| 2568 | if (fd == -1) |
| 2569 | error ("Can not reopen tty device %s: %s", t->display_info.tty->name, strerror (errno)); |
| 2570 | |
| 2571 | if (strcmp (t->display_info.tty->name, DEV_TTY)) |
| 2572 | dissociate_if_controlling_tty (fd); |
| 2573 | |
| 2574 | t->display_info.tty->output = fdopen (fd, "w+"); |
| 2575 | t->display_info.tty->input = t->display_info.tty->output; |
| 2576 | #endif |
| 2577 | |
| 2578 | add_keyboard_wait_descriptor (fd); |
| 2579 | |
| 2580 | if (FRAMEP (t->display_info.tty->top_frame)) |
| 2581 | { |
| 2582 | struct frame *f = XFRAME (t->display_info.tty->top_frame); |
| 2583 | int width, height; |
| 2584 | int old_height = FRAME_COLS (f); |
| 2585 | int old_width = FRAME_LINES (f); |
| 2586 | |
| 2587 | /* Check if terminal/window size has changed while the frame |
| 2588 | was suspended. */ |
| 2589 | get_tty_size (fileno (t->display_info.tty->input), &width, &height); |
| 2590 | if (width != old_width || height != old_height) |
| 2591 | change_frame_size (f, height, width, 0, 0, 0); |
| 2592 | FRAME_SET_VISIBLE (XFRAME (t->display_info.tty->top_frame), 1); |
| 2593 | } |
| 2594 | |
| 2595 | init_sys_modes (t->display_info.tty); |
| 2596 | |
| 2597 | { |
| 2598 | /* Run `resume-tty-functions'. */ |
| 2599 | Lisp_Object args[2]; |
| 2600 | args[0] = intern ("resume-tty-functions"); |
| 2601 | XSETTERMINAL (args[1], t); |
| 2602 | Frun_hook_with_args (2, args); |
| 2603 | } |
| 2604 | } |
| 2605 | |
| 2606 | set_tty_hooks (t); |
| 2607 | |
| 2608 | return Qnil; |
| 2609 | } |
| 2610 | |
| 2611 | \f |
| 2612 | /*********************************************************************** |
| 2613 | Mouse |
| 2614 | ***********************************************************************/ |
| 2615 | |
| 2616 | #ifdef HAVE_GPM |
| 2617 | void |
| 2618 | term_mouse_moveto (int x, int y) |
| 2619 | { |
| 2620 | /* TODO: how to set mouse position? |
| 2621 | const char *name; |
| 2622 | int fd; |
| 2623 | name = (const char *) ttyname (0); |
| 2624 | fd = open (name, O_WRONLY); |
| 2625 | SOME_FUNCTION (x, y, fd); |
| 2626 | close (fd); |
| 2627 | last_mouse_x = x; |
| 2628 | last_mouse_y = y; */ |
| 2629 | } |
| 2630 | |
| 2631 | /* Implementation of draw_row_with_mouse_face for TTY/GPM. */ |
| 2632 | void |
| 2633 | tty_draw_row_with_mouse_face (struct window *w, struct glyph_row *row, |
| 2634 | int start_hpos, int end_hpos, |
| 2635 | enum draw_glyphs_face draw) |
| 2636 | { |
| 2637 | int nglyphs = end_hpos - start_hpos; |
| 2638 | struct frame *f = XFRAME (WINDOW_FRAME (w)); |
| 2639 | struct tty_display_info *tty = FRAME_TTY (f); |
| 2640 | int face_id = tty->mouse_highlight.mouse_face_face_id; |
| 2641 | int save_x, save_y, pos_x, pos_y; |
| 2642 | |
| 2643 | if (end_hpos >= row->used[TEXT_AREA]) |
| 2644 | nglyphs = row->used[TEXT_AREA] - start_hpos; |
| 2645 | |
| 2646 | pos_y = row->y + WINDOW_TOP_EDGE_Y (w); |
| 2647 | pos_x = row->used[LEFT_MARGIN_AREA] + start_hpos + WINDOW_LEFT_EDGE_X (w); |
| 2648 | |
| 2649 | /* Save current cursor co-ordinates. */ |
| 2650 | save_y = curY (tty); |
| 2651 | save_x = curX (tty); |
| 2652 | cursor_to (f, pos_y, pos_x); |
| 2653 | |
| 2654 | if (draw == DRAW_MOUSE_FACE) |
| 2655 | tty_write_glyphs_with_face (f, row->glyphs[TEXT_AREA] + start_hpos, |
| 2656 | nglyphs, face_id); |
| 2657 | else if (draw == DRAW_NORMAL_TEXT) |
| 2658 | write_glyphs (f, row->glyphs[TEXT_AREA] + start_hpos, nglyphs); |
| 2659 | |
| 2660 | cursor_to (f, save_y, save_x); |
| 2661 | } |
| 2662 | |
| 2663 | static int |
| 2664 | term_mouse_movement (FRAME_PTR frame, Gpm_Event *event) |
| 2665 | { |
| 2666 | /* Has the mouse moved off the glyph it was on at the last sighting? */ |
| 2667 | if (event->x != last_mouse_x || event->y != last_mouse_y) |
| 2668 | { |
| 2669 | frame->mouse_moved = 1; |
| 2670 | note_mouse_highlight (frame, event->x, event->y); |
| 2671 | /* Remember which glyph we're now on. */ |
| 2672 | last_mouse_x = event->x; |
| 2673 | last_mouse_y = event->y; |
| 2674 | return 1; |
| 2675 | } |
| 2676 | return 0; |
| 2677 | } |
| 2678 | |
| 2679 | /* Return the current position of the mouse. |
| 2680 | |
| 2681 | Set *f to the frame the mouse is in, or zero if the mouse is in no |
| 2682 | Emacs frame. If it is set to zero, all the other arguments are |
| 2683 | garbage. |
| 2684 | |
| 2685 | Set *bar_window to Qnil, and *x and *y to the column and |
| 2686 | row of the character cell the mouse is over. |
| 2687 | |
| 2688 | Set *timeptr to the time the mouse was at the returned position. |
| 2689 | |
| 2690 | This clears mouse_moved until the next motion |
| 2691 | event arrives. */ |
| 2692 | static void |
| 2693 | term_mouse_position (FRAME_PTR *fp, int insist, Lisp_Object *bar_window, |
| 2694 | enum scroll_bar_part *part, Lisp_Object *x, |
| 2695 | Lisp_Object *y, unsigned long *timeptr) |
| 2696 | { |
| 2697 | struct timeval now; |
| 2698 | |
| 2699 | *fp = SELECTED_FRAME (); |
| 2700 | (*fp)->mouse_moved = 0; |
| 2701 | |
| 2702 | *bar_window = Qnil; |
| 2703 | *part = 0; |
| 2704 | |
| 2705 | XSETINT (*x, last_mouse_x); |
| 2706 | XSETINT (*y, last_mouse_y); |
| 2707 | gettimeofday(&now, 0); |
| 2708 | *timeptr = (now.tv_sec * 1000) + (now.tv_usec / 1000); |
| 2709 | } |
| 2710 | |
| 2711 | /* Prepare a mouse-event in *RESULT for placement in the input queue. |
| 2712 | |
| 2713 | If the event is a button press, then note that we have grabbed |
| 2714 | the mouse. */ |
| 2715 | |
| 2716 | static Lisp_Object |
| 2717 | term_mouse_click (struct input_event *result, Gpm_Event *event, |
| 2718 | struct frame *f) |
| 2719 | { |
| 2720 | struct timeval now; |
| 2721 | int i, j; |
| 2722 | |
| 2723 | result->kind = GPM_CLICK_EVENT; |
| 2724 | for (i = 0, j = GPM_B_LEFT; i < 3; i++, j >>= 1 ) |
| 2725 | { |
| 2726 | if (event->buttons & j) { |
| 2727 | result->code = i; /* button number */ |
| 2728 | break; |
| 2729 | } |
| 2730 | } |
| 2731 | gettimeofday(&now, 0); |
| 2732 | result->timestamp = (now.tv_sec * 1000) + (now.tv_usec / 1000); |
| 2733 | |
| 2734 | if (event->type & GPM_UP) |
| 2735 | result->modifiers = up_modifier; |
| 2736 | else if (event->type & GPM_DOWN) |
| 2737 | result->modifiers = down_modifier; |
| 2738 | else |
| 2739 | result->modifiers = 0; |
| 2740 | |
| 2741 | if (event->type & GPM_SINGLE) |
| 2742 | result->modifiers |= click_modifier; |
| 2743 | |
| 2744 | if (event->type & GPM_DOUBLE) |
| 2745 | result->modifiers |= double_modifier; |
| 2746 | |
| 2747 | if (event->type & GPM_TRIPLE) |
| 2748 | result->modifiers |= triple_modifier; |
| 2749 | |
| 2750 | if (event->type & GPM_DRAG) |
| 2751 | result->modifiers |= drag_modifier; |
| 2752 | |
| 2753 | if (!(event->type & (GPM_MOVE | GPM_DRAG))) { |
| 2754 | |
| 2755 | /* 1 << KG_SHIFT */ |
| 2756 | if (event->modifiers & (1 << 0)) |
| 2757 | result->modifiers |= shift_modifier; |
| 2758 | |
| 2759 | /* 1 << KG_CTRL */ |
| 2760 | if (event->modifiers & (1 << 2)) |
| 2761 | result->modifiers |= ctrl_modifier; |
| 2762 | |
| 2763 | /* 1 << KG_ALT || KG_ALTGR */ |
| 2764 | if (event->modifiers & (1 << 3) |
| 2765 | || event->modifiers & (1 << 1)) |
| 2766 | result->modifiers |= meta_modifier; |
| 2767 | } |
| 2768 | |
| 2769 | XSETINT (result->x, event->x); |
| 2770 | XSETINT (result->y, event->y); |
| 2771 | XSETFRAME (result->frame_or_window, f); |
| 2772 | result->arg = Qnil; |
| 2773 | return Qnil; |
| 2774 | } |
| 2775 | |
| 2776 | int |
| 2777 | handle_one_term_event (struct tty_display_info *tty, Gpm_Event *event, struct input_event* hold_quit) |
| 2778 | { |
| 2779 | struct frame *f = XFRAME (tty->top_frame); |
| 2780 | struct input_event ie; |
| 2781 | int do_help = 0; |
| 2782 | int count = 0; |
| 2783 | |
| 2784 | EVENT_INIT (ie); |
| 2785 | ie.kind = NO_EVENT; |
| 2786 | ie.arg = Qnil; |
| 2787 | |
| 2788 | if (event->type & (GPM_MOVE | GPM_DRAG)) { |
| 2789 | previous_help_echo_string = help_echo_string; |
| 2790 | help_echo_string = Qnil; |
| 2791 | |
| 2792 | Gpm_DrawPointer (event->x, event->y, fileno (tty->output)); |
| 2793 | |
| 2794 | if (!term_mouse_movement (f, event)) |
| 2795 | help_echo_string = previous_help_echo_string; |
| 2796 | |
| 2797 | /* If the contents of the global variable help_echo_string |
| 2798 | has changed, generate a HELP_EVENT. */ |
| 2799 | if (!NILP (help_echo_string) |
| 2800 | || !NILP (previous_help_echo_string)) |
| 2801 | do_help = 1; |
| 2802 | |
| 2803 | goto done; |
| 2804 | } |
| 2805 | else { |
| 2806 | f->mouse_moved = 0; |
| 2807 | term_mouse_click (&ie, event, f); |
| 2808 | } |
| 2809 | |
| 2810 | done: |
| 2811 | if (ie.kind != NO_EVENT) |
| 2812 | { |
| 2813 | kbd_buffer_store_event_hold (&ie, hold_quit); |
| 2814 | count++; |
| 2815 | } |
| 2816 | |
| 2817 | if (do_help |
| 2818 | && !(hold_quit && hold_quit->kind != NO_EVENT)) |
| 2819 | { |
| 2820 | Lisp_Object frame; |
| 2821 | |
| 2822 | if (f) |
| 2823 | XSETFRAME (frame, f); |
| 2824 | else |
| 2825 | frame = Qnil; |
| 2826 | |
| 2827 | gen_help_event (help_echo_string, frame, help_echo_window, |
| 2828 | help_echo_object, help_echo_pos); |
| 2829 | count++; |
| 2830 | } |
| 2831 | |
| 2832 | return count; |
| 2833 | } |
| 2834 | |
| 2835 | DEFUN ("gpm-mouse-start", Fgpm_mouse_start, Sgpm_mouse_start, |
| 2836 | 0, 0, 0, |
| 2837 | doc: /* Open a connection to Gpm. |
| 2838 | Gpm-mouse can only be activated for one tty at a time. */) |
| 2839 | (void) |
| 2840 | { |
| 2841 | struct frame *f = SELECTED_FRAME (); |
| 2842 | struct tty_display_info *tty |
| 2843 | = ((f)->output_method == output_termcap |
| 2844 | ? (f)->terminal->display_info.tty : NULL); |
| 2845 | Gpm_Connect connection; |
| 2846 | |
| 2847 | if (!tty) |
| 2848 | error ("Gpm-mouse only works in the GNU/Linux console"); |
| 2849 | if (gpm_tty == tty) |
| 2850 | return Qnil; /* Already activated, nothing to do. */ |
| 2851 | if (gpm_tty) |
| 2852 | error ("Gpm-mouse can only be activated for one tty at a time"); |
| 2853 | |
| 2854 | connection.eventMask = ~0; |
| 2855 | connection.defaultMask = ~GPM_HARD; |
| 2856 | connection.maxMod = ~0; |
| 2857 | connection.minMod = 0; |
| 2858 | gpm_zerobased = 1; |
| 2859 | |
| 2860 | if (Gpm_Open (&connection, 0) < 0) |
| 2861 | error ("Gpm-mouse failed to connect to the gpm daemon"); |
| 2862 | else |
| 2863 | { |
| 2864 | gpm_tty = tty; |
| 2865 | /* `init_sys_modes' arranges for mouse movements sent through gpm_fd |
| 2866 | to generate SIGIOs. Apparently we need to call reset_sys_modes |
| 2867 | before calling init_sys_modes. */ |
| 2868 | reset_sys_modes (tty); |
| 2869 | init_sys_modes (tty); |
| 2870 | add_gpm_wait_descriptor (gpm_fd); |
| 2871 | return Qnil; |
| 2872 | } |
| 2873 | } |
| 2874 | |
| 2875 | void |
| 2876 | close_gpm (int fd) |
| 2877 | { |
| 2878 | if (fd >= 0) |
| 2879 | delete_gpm_wait_descriptor (fd); |
| 2880 | while (Gpm_Close()); /* close all the stack */ |
| 2881 | gpm_tty = NULL; |
| 2882 | } |
| 2883 | |
| 2884 | DEFUN ("gpm-mouse-stop", Fgpm_mouse_stop, Sgpm_mouse_stop, |
| 2885 | 0, 0, 0, |
| 2886 | doc: /* Close a connection to Gpm. */) |
| 2887 | (void) |
| 2888 | { |
| 2889 | struct frame *f = SELECTED_FRAME (); |
| 2890 | struct tty_display_info *tty |
| 2891 | = ((f)->output_method == output_termcap |
| 2892 | ? (f)->terminal->display_info.tty : NULL); |
| 2893 | |
| 2894 | if (!tty || gpm_tty != tty) |
| 2895 | return Qnil; /* Not activated on this terminal, nothing to do. */ |
| 2896 | |
| 2897 | close_gpm (gpm_fd); |
| 2898 | return Qnil; |
| 2899 | } |
| 2900 | #endif /* HAVE_GPM */ |
| 2901 | |
| 2902 | \f |
| 2903 | #ifndef MSDOS |
| 2904 | /*********************************************************************** |
| 2905 | Initialization |
| 2906 | ***********************************************************************/ |
| 2907 | |
| 2908 | /* Initialize the tty-dependent part of frame F. The frame must |
| 2909 | already have its device initialized. */ |
| 2910 | |
| 2911 | void |
| 2912 | create_tty_output (struct frame *f) |
| 2913 | { |
| 2914 | struct tty_output *t; |
| 2915 | |
| 2916 | if (! FRAME_TERMCAP_P (f)) |
| 2917 | abort (); |
| 2918 | |
| 2919 | t = xmalloc (sizeof (struct tty_output)); |
| 2920 | memset (t, 0, sizeof (struct tty_output)); |
| 2921 | |
| 2922 | t->display_info = FRAME_TERMINAL (f)->display_info.tty; |
| 2923 | |
| 2924 | f->output_data.tty = t; |
| 2925 | } |
| 2926 | |
| 2927 | /* Delete frame F's face cache, and its tty-dependent part. */ |
| 2928 | |
| 2929 | static void |
| 2930 | tty_free_frame_resources (struct frame *f) |
| 2931 | { |
| 2932 | if (! FRAME_TERMCAP_P (f)) |
| 2933 | abort (); |
| 2934 | |
| 2935 | if (FRAME_FACE_CACHE (f)) |
| 2936 | free_frame_faces (f); |
| 2937 | |
| 2938 | xfree (f->output_data.tty); |
| 2939 | } |
| 2940 | |
| 2941 | #else /* MSDOS */ |
| 2942 | |
| 2943 | /* Delete frame F's face cache. */ |
| 2944 | |
| 2945 | static void |
| 2946 | tty_free_frame_resources (struct frame *f) |
| 2947 | { |
| 2948 | if (! FRAME_TERMCAP_P (f) && ! FRAME_MSDOS_P (f)) |
| 2949 | abort (); |
| 2950 | |
| 2951 | if (FRAME_FACE_CACHE (f)) |
| 2952 | free_frame_faces (f); |
| 2953 | } |
| 2954 | #endif /* MSDOS */ |
| 2955 | \f |
| 2956 | /* Reset the hooks in TERMINAL. */ |
| 2957 | |
| 2958 | static void |
| 2959 | clear_tty_hooks (struct terminal *terminal) |
| 2960 | { |
| 2961 | terminal->rif = 0; |
| 2962 | terminal->cursor_to_hook = 0; |
| 2963 | terminal->raw_cursor_to_hook = 0; |
| 2964 | terminal->clear_to_end_hook = 0; |
| 2965 | terminal->clear_frame_hook = 0; |
| 2966 | terminal->clear_end_of_line_hook = 0; |
| 2967 | terminal->ins_del_lines_hook = 0; |
| 2968 | terminal->insert_glyphs_hook = 0; |
| 2969 | terminal->write_glyphs_hook = 0; |
| 2970 | terminal->delete_glyphs_hook = 0; |
| 2971 | terminal->ring_bell_hook = 0; |
| 2972 | terminal->reset_terminal_modes_hook = 0; |
| 2973 | terminal->set_terminal_modes_hook = 0; |
| 2974 | terminal->update_begin_hook = 0; |
| 2975 | terminal->update_end_hook = 0; |
| 2976 | terminal->set_terminal_window_hook = 0; |
| 2977 | terminal->mouse_position_hook = 0; |
| 2978 | terminal->frame_rehighlight_hook = 0; |
| 2979 | terminal->frame_raise_lower_hook = 0; |
| 2980 | terminal->fullscreen_hook = 0; |
| 2981 | terminal->set_vertical_scroll_bar_hook = 0; |
| 2982 | terminal->condemn_scroll_bars_hook = 0; |
| 2983 | terminal->redeem_scroll_bar_hook = 0; |
| 2984 | terminal->judge_scroll_bars_hook = 0; |
| 2985 | terminal->read_socket_hook = 0; |
| 2986 | terminal->frame_up_to_date_hook = 0; |
| 2987 | |
| 2988 | /* Leave these two set, or suspended frames are not deleted |
| 2989 | correctly. */ |
| 2990 | terminal->delete_frame_hook = &tty_free_frame_resources; |
| 2991 | terminal->delete_terminal_hook = &delete_tty; |
| 2992 | } |
| 2993 | |
| 2994 | /* Initialize hooks in TERMINAL with the values needed for a tty. */ |
| 2995 | |
| 2996 | static void |
| 2997 | set_tty_hooks (struct terminal *terminal) |
| 2998 | { |
| 2999 | terminal->rif = 0; /* ttys don't support window-based redisplay. */ |
| 3000 | |
| 3001 | terminal->cursor_to_hook = &tty_cursor_to; |
| 3002 | terminal->raw_cursor_to_hook = &tty_raw_cursor_to; |
| 3003 | |
| 3004 | terminal->clear_to_end_hook = &tty_clear_to_end; |
| 3005 | terminal->clear_frame_hook = &tty_clear_frame; |
| 3006 | terminal->clear_end_of_line_hook = &tty_clear_end_of_line; |
| 3007 | |
| 3008 | terminal->ins_del_lines_hook = &tty_ins_del_lines; |
| 3009 | |
| 3010 | terminal->insert_glyphs_hook = &tty_insert_glyphs; |
| 3011 | terminal->write_glyphs_hook = &tty_write_glyphs; |
| 3012 | terminal->delete_glyphs_hook = &tty_delete_glyphs; |
| 3013 | |
| 3014 | terminal->ring_bell_hook = &tty_ring_bell; |
| 3015 | |
| 3016 | terminal->reset_terminal_modes_hook = &tty_reset_terminal_modes; |
| 3017 | terminal->set_terminal_modes_hook = &tty_set_terminal_modes; |
| 3018 | terminal->update_begin_hook = 0; /* Not needed. */ |
| 3019 | terminal->update_end_hook = &tty_update_end; |
| 3020 | terminal->set_terminal_window_hook = &tty_set_terminal_window; |
| 3021 | |
| 3022 | terminal->mouse_position_hook = 0; /* Not needed. */ |
| 3023 | terminal->frame_rehighlight_hook = 0; /* Not needed. */ |
| 3024 | terminal->frame_raise_lower_hook = 0; /* Not needed. */ |
| 3025 | |
| 3026 | terminal->set_vertical_scroll_bar_hook = 0; /* Not needed. */ |
| 3027 | terminal->condemn_scroll_bars_hook = 0; /* Not needed. */ |
| 3028 | terminal->redeem_scroll_bar_hook = 0; /* Not needed. */ |
| 3029 | terminal->judge_scroll_bars_hook = 0; /* Not needed. */ |
| 3030 | |
| 3031 | terminal->read_socket_hook = &tty_read_avail_input; /* keyboard.c */ |
| 3032 | terminal->frame_up_to_date_hook = 0; /* Not needed. */ |
| 3033 | |
| 3034 | terminal->delete_frame_hook = &tty_free_frame_resources; |
| 3035 | terminal->delete_terminal_hook = &delete_tty; |
| 3036 | } |
| 3037 | |
| 3038 | /* Drop the controlling terminal if fd is the same device. */ |
| 3039 | static void |
| 3040 | dissociate_if_controlling_tty (int fd) |
| 3041 | { |
| 3042 | #ifndef DOS_NT |
| 3043 | int pgid = tcgetpgrp (fd); /* If tcgetpgrp succeeds, fd is the ctty. */ |
| 3044 | if (pgid != -1) |
| 3045 | { |
| 3046 | #if defined (USG5) |
| 3047 | setpgrp (); |
| 3048 | no_controlling_tty = 1; |
| 3049 | #elif defined (CYGWIN) |
| 3050 | setsid (); |
| 3051 | no_controlling_tty = 1; |
| 3052 | #else |
| 3053 | #ifdef TIOCNOTTY /* Try BSD ioctls. */ |
| 3054 | sigblock (sigmask (SIGTTOU)); |
| 3055 | fd = emacs_open (DEV_TTY, O_RDWR, 0); |
| 3056 | if (fd != -1 && ioctl (fd, TIOCNOTTY, 0) != -1) |
| 3057 | { |
| 3058 | no_controlling_tty = 1; |
| 3059 | } |
| 3060 | if (fd != -1) |
| 3061 | emacs_close (fd); |
| 3062 | sigunblock (sigmask (SIGTTOU)); |
| 3063 | #else |
| 3064 | /* Unknown system. */ |
| 3065 | croak (); |
| 3066 | #endif /* ! TIOCNOTTY */ |
| 3067 | #endif /* ! USG */ |
| 3068 | } |
| 3069 | #endif /* !DOS_NT */ |
| 3070 | } |
| 3071 | |
| 3072 | /* Create a termcap display on the tty device with the given name and |
| 3073 | type. |
| 3074 | |
| 3075 | If NAME is NULL, then use the controlling tty, i.e., "/dev/tty". |
| 3076 | Otherwise NAME should be a path to the tty device file, |
| 3077 | e.g. "/dev/pts/7". |
| 3078 | |
| 3079 | TERMINAL_TYPE is the termcap type of the device, e.g. "vt100". |
| 3080 | |
| 3081 | If MUST_SUCCEED is true, then all errors are fatal. */ |
| 3082 | |
| 3083 | struct terminal * |
| 3084 | init_tty (const char *name, const char *terminal_type, int must_succeed) |
| 3085 | { |
| 3086 | char *area = NULL; |
| 3087 | char **address = &area; |
| 3088 | int buffer_size = 4096; |
| 3089 | register char *p = NULL; |
| 3090 | int status; |
| 3091 | struct tty_display_info *tty = NULL; |
| 3092 | struct terminal *terminal = NULL; |
| 3093 | int ctty = 0; /* 1 if asked to open controlling tty. */ |
| 3094 | |
| 3095 | if (!terminal_type) |
| 3096 | maybe_fatal (must_succeed, 0, |
| 3097 | "Unknown terminal type", |
| 3098 | "Unknown terminal type"); |
| 3099 | |
| 3100 | if (name == NULL) |
| 3101 | name = DEV_TTY; |
| 3102 | if (!strcmp (name, DEV_TTY)) |
| 3103 | ctty = 1; |
| 3104 | |
| 3105 | /* If we already have a terminal on the given device, use that. If |
| 3106 | all such terminals are suspended, create a new one instead. */ |
| 3107 | /* XXX Perhaps this should be made explicit by having init_tty |
| 3108 | always create a new terminal and separating terminal and frame |
| 3109 | creation on Lisp level. */ |
| 3110 | terminal = get_named_tty (name); |
| 3111 | if (terminal) |
| 3112 | return terminal; |
| 3113 | |
| 3114 | terminal = create_terminal (); |
| 3115 | #ifdef MSDOS |
| 3116 | if (been_here > 0) |
| 3117 | maybe_fatal (1, 0, "Attempt to create another terminal %s", "", |
| 3118 | name, ""); |
| 3119 | been_here = 1; |
| 3120 | tty = &the_only_display_info; |
| 3121 | #else |
| 3122 | tty = (struct tty_display_info *) xmalloc (sizeof (struct tty_display_info)); |
| 3123 | #endif |
| 3124 | memset (tty, 0, sizeof (struct tty_display_info)); |
| 3125 | tty->next = tty_list; |
| 3126 | tty_list = tty; |
| 3127 | |
| 3128 | terminal->type = output_termcap; |
| 3129 | terminal->display_info.tty = tty; |
| 3130 | tty->terminal = terminal; |
| 3131 | |
| 3132 | tty->Wcm = (struct cm *) xmalloc (sizeof (struct cm)); |
| 3133 | Wcm_clear (tty); |
| 3134 | |
| 3135 | encode_terminal_src_size = 0; |
| 3136 | encode_terminal_dst_size = 0; |
| 3137 | |
| 3138 | #ifdef HAVE_GPM |
| 3139 | terminal->mouse_position_hook = term_mouse_position; |
| 3140 | tty->mouse_highlight.mouse_face_window = Qnil; |
| 3141 | #endif |
| 3142 | |
| 3143 | |
| 3144 | #ifndef DOS_NT |
| 3145 | set_tty_hooks (terminal); |
| 3146 | |
| 3147 | { |
| 3148 | int fd; |
| 3149 | FILE *file; |
| 3150 | |
| 3151 | #ifdef O_IGNORE_CTTY |
| 3152 | if (!ctty) |
| 3153 | /* Open the terminal device. Don't recognize it as our |
| 3154 | controlling terminal, and don't make it the controlling tty |
| 3155 | if we don't have one at the moment. */ |
| 3156 | fd = emacs_open (name, O_RDWR | O_IGNORE_CTTY | O_NOCTTY, 0); |
| 3157 | else |
| 3158 | #endif /* O_IGNORE_CTTY */ |
| 3159 | /* Alas, O_IGNORE_CTTY is a GNU extension that seems to be only |
| 3160 | defined on Hurd. On other systems, we need to explicitly |
| 3161 | dissociate ourselves from the controlling tty when we want to |
| 3162 | open a frame on the same terminal. */ |
| 3163 | fd = emacs_open (name, O_RDWR | O_NOCTTY, 0); |
| 3164 | |
| 3165 | tty->name = xstrdup (name); |
| 3166 | terminal->name = xstrdup (name); |
| 3167 | |
| 3168 | if (fd < 0) |
| 3169 | maybe_fatal (must_succeed, terminal, |
| 3170 | "Could not open file: %s", |
| 3171 | "Could not open file: %s", |
| 3172 | name); |
| 3173 | if (!isatty (fd)) |
| 3174 | { |
| 3175 | close (fd); |
| 3176 | maybe_fatal (must_succeed, terminal, |
| 3177 | "Not a tty device: %s", |
| 3178 | "Not a tty device: %s", |
| 3179 | name); |
| 3180 | } |
| 3181 | |
| 3182 | #ifndef O_IGNORE_CTTY |
| 3183 | if (!ctty) |
| 3184 | dissociate_if_controlling_tty (fd); |
| 3185 | #endif |
| 3186 | |
| 3187 | file = fdopen (fd, "w+"); |
| 3188 | tty->input = file; |
| 3189 | tty->output = file; |
| 3190 | } |
| 3191 | |
| 3192 | tty->type = xstrdup (terminal_type); |
| 3193 | |
| 3194 | add_keyboard_wait_descriptor (fileno (tty->input)); |
| 3195 | |
| 3196 | Wcm_clear (tty); |
| 3197 | |
| 3198 | tty->termcap_term_buffer = (char *) xmalloc (buffer_size); |
| 3199 | |
| 3200 | /* On some systems, tgetent tries to access the controlling |
| 3201 | terminal. */ |
| 3202 | sigblock (sigmask (SIGTTOU)); |
| 3203 | status = tgetent (tty->termcap_term_buffer, terminal_type); |
| 3204 | sigunblock (sigmask (SIGTTOU)); |
| 3205 | |
| 3206 | if (status < 0) |
| 3207 | { |
| 3208 | #ifdef TERMINFO |
| 3209 | maybe_fatal (must_succeed, terminal, |
| 3210 | "Cannot open terminfo database file", |
| 3211 | "Cannot open terminfo database file"); |
| 3212 | #else |
| 3213 | maybe_fatal (must_succeed, terminal, |
| 3214 | "Cannot open termcap database file", |
| 3215 | "Cannot open termcap database file"); |
| 3216 | #endif |
| 3217 | } |
| 3218 | if (status == 0) |
| 3219 | { |
| 3220 | maybe_fatal (must_succeed, terminal, |
| 3221 | "Terminal type %s is not defined", |
| 3222 | "Terminal type %s is not defined.\n\ |
| 3223 | If that is not the actual type of terminal you have,\n\ |
| 3224 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
| 3225 | `setenv TERM ...') to specify the correct type. It may be necessary\n" |
| 3226 | #ifdef TERMINFO |
| 3227 | "to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
| 3228 | #else |
| 3229 | "to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
| 3230 | #endif |
| 3231 | terminal_type); |
| 3232 | } |
| 3233 | |
| 3234 | #ifndef TERMINFO |
| 3235 | if (strlen (tty->termcap_term_buffer) >= buffer_size) |
| 3236 | abort (); |
| 3237 | buffer_size = strlen (tty->termcap_term_buffer); |
| 3238 | #endif |
| 3239 | tty->termcap_strings_buffer = area = (char *) xmalloc (buffer_size); |
| 3240 | tty->TS_ins_line = tgetstr ("al", address); |
| 3241 | tty->TS_ins_multi_lines = tgetstr ("AL", address); |
| 3242 | tty->TS_bell = tgetstr ("bl", address); |
| 3243 | BackTab (tty) = tgetstr ("bt", address); |
| 3244 | tty->TS_clr_to_bottom = tgetstr ("cd", address); |
| 3245 | tty->TS_clr_line = tgetstr ("ce", address); |
| 3246 | tty->TS_clr_frame = tgetstr ("cl", address); |
| 3247 | ColPosition (tty) = NULL; /* tgetstr ("ch", address); */ |
| 3248 | AbsPosition (tty) = tgetstr ("cm", address); |
| 3249 | CR (tty) = tgetstr ("cr", address); |
| 3250 | tty->TS_set_scroll_region = tgetstr ("cs", address); |
| 3251 | tty->TS_set_scroll_region_1 = tgetstr ("cS", address); |
| 3252 | RowPosition (tty) = tgetstr ("cv", address); |
| 3253 | tty->TS_del_char = tgetstr ("dc", address); |
| 3254 | tty->TS_del_multi_chars = tgetstr ("DC", address); |
| 3255 | tty->TS_del_line = tgetstr ("dl", address); |
| 3256 | tty->TS_del_multi_lines = tgetstr ("DL", address); |
| 3257 | tty->TS_delete_mode = tgetstr ("dm", address); |
| 3258 | tty->TS_end_delete_mode = tgetstr ("ed", address); |
| 3259 | tty->TS_end_insert_mode = tgetstr ("ei", address); |
| 3260 | Home (tty) = tgetstr ("ho", address); |
| 3261 | tty->TS_ins_char = tgetstr ("ic", address); |
| 3262 | tty->TS_ins_multi_chars = tgetstr ("IC", address); |
| 3263 | tty->TS_insert_mode = tgetstr ("im", address); |
| 3264 | tty->TS_pad_inserted_char = tgetstr ("ip", address); |
| 3265 | tty->TS_end_keypad_mode = tgetstr ("ke", address); |
| 3266 | tty->TS_keypad_mode = tgetstr ("ks", address); |
| 3267 | LastLine (tty) = tgetstr ("ll", address); |
| 3268 | Right (tty) = tgetstr ("nd", address); |
| 3269 | Down (tty) = tgetstr ("do", address); |
| 3270 | if (!Down (tty)) |
| 3271 | Down (tty) = tgetstr ("nl", address); /* Obsolete name for "do" */ |
| 3272 | if (tgetflag ("bs")) |
| 3273 | Left (tty) = "\b"; /* can't possibly be longer! */ |
| 3274 | else /* (Actually, "bs" is obsolete...) */ |
| 3275 | Left (tty) = tgetstr ("le", address); |
| 3276 | if (!Left (tty)) |
| 3277 | Left (tty) = tgetstr ("bc", address); /* Obsolete name for "le" */ |
| 3278 | tty->TS_pad_char = tgetstr ("pc", address); |
| 3279 | tty->TS_repeat = tgetstr ("rp", address); |
| 3280 | tty->TS_end_standout_mode = tgetstr ("se", address); |
| 3281 | tty->TS_fwd_scroll = tgetstr ("sf", address); |
| 3282 | tty->TS_standout_mode = tgetstr ("so", address); |
| 3283 | tty->TS_rev_scroll = tgetstr ("sr", address); |
| 3284 | tty->Wcm->cm_tab = tgetstr ("ta", address); |
| 3285 | tty->TS_end_termcap_modes = tgetstr ("te", address); |
| 3286 | tty->TS_termcap_modes = tgetstr ("ti", address); |
| 3287 | Up (tty) = tgetstr ("up", address); |
| 3288 | tty->TS_visible_bell = tgetstr ("vb", address); |
| 3289 | tty->TS_cursor_normal = tgetstr ("ve", address); |
| 3290 | tty->TS_cursor_visible = tgetstr ("vs", address); |
| 3291 | tty->TS_cursor_invisible = tgetstr ("vi", address); |
| 3292 | tty->TS_set_window = tgetstr ("wi", address); |
| 3293 | |
| 3294 | tty->TS_enter_underline_mode = tgetstr ("us", address); |
| 3295 | tty->TS_exit_underline_mode = tgetstr ("ue", address); |
| 3296 | tty->TS_enter_bold_mode = tgetstr ("md", address); |
| 3297 | tty->TS_enter_dim_mode = tgetstr ("mh", address); |
| 3298 | tty->TS_enter_blink_mode = tgetstr ("mb", address); |
| 3299 | tty->TS_enter_reverse_mode = tgetstr ("mr", address); |
| 3300 | tty->TS_enter_alt_charset_mode = tgetstr ("as", address); |
| 3301 | tty->TS_exit_alt_charset_mode = tgetstr ("ae", address); |
| 3302 | tty->TS_exit_attribute_mode = tgetstr ("me", address); |
| 3303 | |
| 3304 | MultiUp (tty) = tgetstr ("UP", address); |
| 3305 | MultiDown (tty) = tgetstr ("DO", address); |
| 3306 | MultiLeft (tty) = tgetstr ("LE", address); |
| 3307 | MultiRight (tty) = tgetstr ("RI", address); |
| 3308 | |
| 3309 | /* SVr4/ANSI color suppert. If "op" isn't available, don't support |
| 3310 | color because we can't switch back to the default foreground and |
| 3311 | background. */ |
| 3312 | tty->TS_orig_pair = tgetstr ("op", address); |
| 3313 | if (tty->TS_orig_pair) |
| 3314 | { |
| 3315 | tty->TS_set_foreground = tgetstr ("AF", address); |
| 3316 | tty->TS_set_background = tgetstr ("AB", address); |
| 3317 | if (!tty->TS_set_foreground) |
| 3318 | { |
| 3319 | /* SVr4. */ |
| 3320 | tty->TS_set_foreground = tgetstr ("Sf", address); |
| 3321 | tty->TS_set_background = tgetstr ("Sb", address); |
| 3322 | } |
| 3323 | |
| 3324 | tty->TN_max_colors = tgetnum ("Co"); |
| 3325 | tty->TN_max_pairs = tgetnum ("pa"); |
| 3326 | |
| 3327 | tty->TN_no_color_video = tgetnum ("NC"); |
| 3328 | if (tty->TN_no_color_video == -1) |
| 3329 | tty->TN_no_color_video = 0; |
| 3330 | } |
| 3331 | |
| 3332 | tty_default_color_capabilities (tty, 1); |
| 3333 | |
| 3334 | MagicWrap (tty) = tgetflag ("xn"); |
| 3335 | /* Since we make MagicWrap terminals look like AutoWrap, we need to have |
| 3336 | the former flag imply the latter. */ |
| 3337 | AutoWrap (tty) = MagicWrap (tty) || tgetflag ("am"); |
| 3338 | terminal->memory_below_frame = tgetflag ("db"); |
| 3339 | tty->TF_hazeltine = tgetflag ("hz"); |
| 3340 | terminal->must_write_spaces = tgetflag ("in"); |
| 3341 | tty->meta_key = tgetflag ("km") || tgetflag ("MT"); |
| 3342 | tty->TF_insmode_motion = tgetflag ("mi"); |
| 3343 | tty->TF_standout_motion = tgetflag ("ms"); |
| 3344 | tty->TF_underscore = tgetflag ("ul"); |
| 3345 | tty->TF_teleray = tgetflag ("xt"); |
| 3346 | |
| 3347 | #else /* DOS_NT */ |
| 3348 | #ifdef WINDOWSNT |
| 3349 | { |
| 3350 | struct frame *f = XFRAME (selected_frame); |
| 3351 | |
| 3352 | initialize_w32_display (terminal); |
| 3353 | |
| 3354 | FrameRows (tty) = FRAME_LINES (f); |
| 3355 | FrameCols (tty) = FRAME_COLS (f); |
| 3356 | tty->specified_window = FRAME_LINES (f); |
| 3357 | |
| 3358 | FRAME_CAN_HAVE_SCROLL_BARS (f) = 0; |
| 3359 | FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none; |
| 3360 | terminal->char_ins_del_ok = 1; |
| 3361 | baud_rate = 19200; |
| 3362 | } |
| 3363 | #else /* MSDOS */ |
| 3364 | { |
| 3365 | int height, width; |
| 3366 | if (strcmp (terminal_type, "internal") == 0) |
| 3367 | terminal->type = output_msdos_raw; |
| 3368 | initialize_msdos_display (terminal); |
| 3369 | |
| 3370 | get_tty_size (fileno (tty->input), &width, &height); |
| 3371 | FrameCols (tty) = width; |
| 3372 | FrameRows (tty) = height; |
| 3373 | terminal->char_ins_del_ok = 0; |
| 3374 | init_baud_rate (fileno (tty->input)); |
| 3375 | } |
| 3376 | #endif /* MSDOS */ |
| 3377 | tty->output = stdout; |
| 3378 | tty->input = stdin; |
| 3379 | /* The following two are inaccessible from w32console.c. */ |
| 3380 | terminal->delete_frame_hook = &tty_free_frame_resources; |
| 3381 | terminal->delete_terminal_hook = &delete_tty; |
| 3382 | |
| 3383 | tty->name = xstrdup (name); |
| 3384 | terminal->name = xstrdup (name); |
| 3385 | tty->type = xstrdup (terminal_type); |
| 3386 | |
| 3387 | add_keyboard_wait_descriptor (0); |
| 3388 | |
| 3389 | tty->delete_in_insert_mode = 1; |
| 3390 | |
| 3391 | UseTabs (tty) = 0; |
| 3392 | terminal->scroll_region_ok = 0; |
| 3393 | |
| 3394 | /* Seems to insert lines when it's not supposed to, messing up the |
| 3395 | display. In doing a trace, it didn't seem to be called much, so I |
| 3396 | don't think we're losing anything by turning it off. */ |
| 3397 | terminal->line_ins_del_ok = 0; |
| 3398 | |
| 3399 | tty->TN_max_colors = 16; /* Required to be non-zero for tty-display-color-p */ |
| 3400 | #endif /* DOS_NT */ |
| 3401 | |
| 3402 | terminal->kboard = (KBOARD *) xmalloc (sizeof (KBOARD)); |
| 3403 | init_kboard (terminal->kboard); |
| 3404 | KVAR (terminal->kboard, Vwindow_system) = Qnil; |
| 3405 | terminal->kboard->next_kboard = all_kboards; |
| 3406 | all_kboards = terminal->kboard; |
| 3407 | terminal->kboard->reference_count++; |
| 3408 | /* Don't let the initial kboard remain current longer than necessary. |
| 3409 | That would cause problems if a file loaded on startup tries to |
| 3410 | prompt in the mini-buffer. */ |
| 3411 | if (current_kboard == initial_kboard) |
| 3412 | current_kboard = terminal->kboard; |
| 3413 | #ifndef DOS_NT |
| 3414 | term_get_fkeys (address, terminal->kboard); |
| 3415 | |
| 3416 | /* Get frame size from system, or else from termcap. */ |
| 3417 | { |
| 3418 | int height, width; |
| 3419 | get_tty_size (fileno (tty->input), &width, &height); |
| 3420 | FrameCols (tty) = width; |
| 3421 | FrameRows (tty) = height; |
| 3422 | } |
| 3423 | |
| 3424 | if (FrameCols (tty) <= 0) |
| 3425 | FrameCols (tty) = tgetnum ("co"); |
| 3426 | if (FrameRows (tty) <= 0) |
| 3427 | FrameRows (tty) = tgetnum ("li"); |
| 3428 | |
| 3429 | if (FrameRows (tty) < 3 || FrameCols (tty) < 3) |
| 3430 | maybe_fatal (must_succeed, terminal, |
| 3431 | "Screen size %dx%d is too small", |
| 3432 | "Screen size %dx%d is too small", |
| 3433 | FrameCols (tty), FrameRows (tty)); |
| 3434 | |
| 3435 | TabWidth (tty) = tgetnum ("tw"); |
| 3436 | |
| 3437 | if (!tty->TS_bell) |
| 3438 | tty->TS_bell = "\07"; |
| 3439 | |
| 3440 | if (!tty->TS_fwd_scroll) |
| 3441 | tty->TS_fwd_scroll = Down (tty); |
| 3442 | |
| 3443 | PC = tty->TS_pad_char ? *tty->TS_pad_char : 0; |
| 3444 | |
| 3445 | if (TabWidth (tty) < 0) |
| 3446 | TabWidth (tty) = 8; |
| 3447 | |
| 3448 | /* Turned off since /etc/termcap seems to have :ta= for most terminals |
| 3449 | and newer termcap doc does not seem to say there is a default. |
| 3450 | if (!tty->Wcm->cm_tab) |
| 3451 | tty->Wcm->cm_tab = "\t"; |
| 3452 | */ |
| 3453 | |
| 3454 | /* We don't support standout modes that use `magic cookies', so |
| 3455 | turn off any that do. */ |
| 3456 | if (tty->TS_standout_mode && tgetnum ("sg") >= 0) |
| 3457 | { |
| 3458 | tty->TS_standout_mode = 0; |
| 3459 | tty->TS_end_standout_mode = 0; |
| 3460 | } |
| 3461 | if (tty->TS_enter_underline_mode && tgetnum ("ug") >= 0) |
| 3462 | { |
| 3463 | tty->TS_enter_underline_mode = 0; |
| 3464 | tty->TS_exit_underline_mode = 0; |
| 3465 | } |
| 3466 | |
| 3467 | /* If there's no standout mode, try to use underlining instead. */ |
| 3468 | if (tty->TS_standout_mode == 0) |
| 3469 | { |
| 3470 | tty->TS_standout_mode = tty->TS_enter_underline_mode; |
| 3471 | tty->TS_end_standout_mode = tty->TS_exit_underline_mode; |
| 3472 | } |
| 3473 | |
| 3474 | /* If no `se' string, try using a `me' string instead. |
| 3475 | If that fails, we can't use standout mode at all. */ |
| 3476 | if (tty->TS_end_standout_mode == 0) |
| 3477 | { |
| 3478 | char *s = tgetstr ("me", address); |
| 3479 | if (s != 0) |
| 3480 | tty->TS_end_standout_mode = s; |
| 3481 | else |
| 3482 | tty->TS_standout_mode = 0; |
| 3483 | } |
| 3484 | |
| 3485 | if (tty->TF_teleray) |
| 3486 | { |
| 3487 | tty->Wcm->cm_tab = 0; |
| 3488 | /* We can't support standout mode, because it uses magic cookies. */ |
| 3489 | tty->TS_standout_mode = 0; |
| 3490 | /* But that means we cannot rely on ^M to go to column zero! */ |
| 3491 | CR (tty) = 0; |
| 3492 | /* LF can't be trusted either -- can alter hpos */ |
| 3493 | /* if move at column 0 thru a line with TS_standout_mode */ |
| 3494 | Down (tty) = 0; |
| 3495 | } |
| 3496 | |
| 3497 | /* Special handling for certain terminal types known to need it */ |
| 3498 | |
| 3499 | if (!strcmp (terminal_type, "supdup")) |
| 3500 | { |
| 3501 | terminal->memory_below_frame = 1; |
| 3502 | tty->Wcm->cm_losewrap = 1; |
| 3503 | } |
| 3504 | if (!strncmp (terminal_type, "c10", 3) |
| 3505 | || !strcmp (terminal_type, "perq")) |
| 3506 | { |
| 3507 | /* Supply a makeshift :wi string. |
| 3508 | This string is not valid in general since it works only |
| 3509 | for windows starting at the upper left corner; |
| 3510 | but that is all Emacs uses. |
| 3511 | |
| 3512 | This string works only if the frame is using |
| 3513 | the top of the video memory, because addressing is memory-relative. |
| 3514 | So first check the :ti string to see if that is true. |
| 3515 | |
| 3516 | It would be simpler if the :wi string could go in the termcap |
| 3517 | entry, but it can't because it is not fully valid. |
| 3518 | If it were in the termcap entry, it would confuse other programs. */ |
| 3519 | if (!tty->TS_set_window) |
| 3520 | { |
| 3521 | const char *m = tty->TS_termcap_modes; |
| 3522 | while (*m && strcmp (m, "\033v ")) |
| 3523 | m++; |
| 3524 | if (*m) |
| 3525 | tty->TS_set_window = "\033v%C %C %C %C "; |
| 3526 | } |
| 3527 | /* Termcap entry often fails to have :in: flag */ |
| 3528 | terminal->must_write_spaces = 1; |
| 3529 | /* :ti string typically fails to have \E^G! in it */ |
| 3530 | /* This limits scope of insert-char to one line. */ |
| 3531 | strcpy (area, tty->TS_termcap_modes); |
| 3532 | strcat (area, "\033\007!"); |
| 3533 | tty->TS_termcap_modes = area; |
| 3534 | area += strlen (area) + 1; |
| 3535 | p = AbsPosition (tty); |
| 3536 | /* Change all %+ parameters to %C, to handle |
| 3537 | values above 96 correctly for the C100. */ |
| 3538 | while (*p) |
| 3539 | { |
| 3540 | if (p[0] == '%' && p[1] == '+') |
| 3541 | p[1] = 'C'; |
| 3542 | p++; |
| 3543 | } |
| 3544 | } |
| 3545 | |
| 3546 | tty->specified_window = FrameRows (tty); |
| 3547 | |
| 3548 | if (Wcm_init (tty) == -1) /* can't do cursor motion */ |
| 3549 | { |
| 3550 | maybe_fatal (must_succeed, terminal, |
| 3551 | "Terminal type \"%s\" is not powerful enough to run Emacs", |
| 3552 | "Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
| 3553 | It lacks the ability to position the cursor.\n\ |
| 3554 | If that is not the actual type of terminal you have,\n\ |
| 3555 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
| 3556 | `setenv TERM ...') to specify the correct type. It may be necessary\n" |
| 3557 | # ifdef TERMINFO |
| 3558 | "to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
| 3559 | # else /* TERMCAP */ |
| 3560 | "to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
| 3561 | # endif /* TERMINFO */ |
| 3562 | terminal_type); |
| 3563 | } |
| 3564 | |
| 3565 | if (FrameRows (tty) <= 0 || FrameCols (tty) <= 0) |
| 3566 | maybe_fatal (must_succeed, terminal, |
| 3567 | "Could not determine the frame size", |
| 3568 | "Could not determine the frame size"); |
| 3569 | |
| 3570 | tty->delete_in_insert_mode |
| 3571 | = tty->TS_delete_mode && tty->TS_insert_mode |
| 3572 | && !strcmp (tty->TS_delete_mode, tty->TS_insert_mode); |
| 3573 | |
| 3574 | tty->se_is_so = (tty->TS_standout_mode |
| 3575 | && tty->TS_end_standout_mode |
| 3576 | && !strcmp (tty->TS_standout_mode, tty->TS_end_standout_mode)); |
| 3577 | |
| 3578 | UseTabs (tty) = tabs_safe_p (fileno (tty->input)) && TabWidth (tty) == 8; |
| 3579 | |
| 3580 | terminal->scroll_region_ok |
| 3581 | = (tty->Wcm->cm_abs |
| 3582 | && (tty->TS_set_window || tty->TS_set_scroll_region || tty->TS_set_scroll_region_1)); |
| 3583 | |
| 3584 | terminal->line_ins_del_ok |
| 3585 | = (((tty->TS_ins_line || tty->TS_ins_multi_lines) |
| 3586 | && (tty->TS_del_line || tty->TS_del_multi_lines)) |
| 3587 | || (terminal->scroll_region_ok |
| 3588 | && tty->TS_fwd_scroll && tty->TS_rev_scroll)); |
| 3589 | |
| 3590 | terminal->char_ins_del_ok |
| 3591 | = ((tty->TS_ins_char || tty->TS_insert_mode |
| 3592 | || tty->TS_pad_inserted_char || tty->TS_ins_multi_chars) |
| 3593 | && (tty->TS_del_char || tty->TS_del_multi_chars)); |
| 3594 | |
| 3595 | terminal->fast_clear_end_of_line = tty->TS_clr_line != 0; |
| 3596 | |
| 3597 | init_baud_rate (fileno (tty->input)); |
| 3598 | |
| 3599 | #endif /* not DOS_NT */ |
| 3600 | |
| 3601 | /* Init system terminal modes (RAW or CBREAK, etc.). */ |
| 3602 | init_sys_modes (tty); |
| 3603 | |
| 3604 | return terminal; |
| 3605 | } |
| 3606 | |
| 3607 | |
| 3608 | static void |
| 3609 | vfatal (const char *str, va_list ap) |
| 3610 | { |
| 3611 | fprintf (stderr, "emacs: "); |
| 3612 | vfprintf (stderr, str, ap); |
| 3613 | if (!(strlen (str) > 0 && str[strlen (str) - 1] == '\n')) |
| 3614 | fprintf (stderr, "\n"); |
| 3615 | va_end (ap); |
| 3616 | fflush (stderr); |
| 3617 | exit (1); |
| 3618 | } |
| 3619 | |
| 3620 | |
| 3621 | /* Auxiliary error-handling function for init_tty. |
| 3622 | Delete TERMINAL, then call error or fatal with str1 or str2, |
| 3623 | respectively, according to MUST_SUCCEED. */ |
| 3624 | |
| 3625 | static void |
| 3626 | maybe_fatal (int must_succeed, struct terminal *terminal, |
| 3627 | const char *str1, const char *str2, ...) |
| 3628 | { |
| 3629 | va_list ap; |
| 3630 | va_start (ap, str2); |
| 3631 | if (terminal) |
| 3632 | delete_tty (terminal); |
| 3633 | |
| 3634 | if (must_succeed) |
| 3635 | vfatal (str2, ap); |
| 3636 | else |
| 3637 | verror (str1, ap); |
| 3638 | |
| 3639 | va_end (ap); |
| 3640 | abort (); |
| 3641 | } |
| 3642 | |
| 3643 | void |
| 3644 | fatal (const char *str, ...) |
| 3645 | { |
| 3646 | va_list ap; |
| 3647 | va_start (ap, str); |
| 3648 | vfatal (str, ap); |
| 3649 | va_end (ap); |
| 3650 | } |
| 3651 | |
| 3652 | \f |
| 3653 | |
| 3654 | /* Delete the given tty terminal, closing all frames on it. */ |
| 3655 | |
| 3656 | static void |
| 3657 | delete_tty (struct terminal *terminal) |
| 3658 | { |
| 3659 | struct tty_display_info *tty; |
| 3660 | |
| 3661 | /* Protect against recursive calls. delete_frame in |
| 3662 | delete_terminal calls us back when it deletes our last frame. */ |
| 3663 | if (!terminal->name) |
| 3664 | return; |
| 3665 | |
| 3666 | if (terminal->type != output_termcap) |
| 3667 | abort (); |
| 3668 | |
| 3669 | tty = terminal->display_info.tty; |
| 3670 | |
| 3671 | if (tty == tty_list) |
| 3672 | tty_list = tty->next; |
| 3673 | else |
| 3674 | { |
| 3675 | struct tty_display_info *p; |
| 3676 | for (p = tty_list; p && p->next != tty; p = p->next) |
| 3677 | ; |
| 3678 | |
| 3679 | if (! p) |
| 3680 | /* This should not happen. */ |
| 3681 | abort (); |
| 3682 | |
| 3683 | p->next = tty->next; |
| 3684 | tty->next = 0; |
| 3685 | } |
| 3686 | |
| 3687 | /* reset_sys_modes needs a valid device, so this call needs to be |
| 3688 | before delete_terminal. */ |
| 3689 | reset_sys_modes (tty); |
| 3690 | |
| 3691 | delete_terminal (terminal); |
| 3692 | |
| 3693 | xfree (tty->name); |
| 3694 | xfree (tty->type); |
| 3695 | |
| 3696 | if (tty->input) |
| 3697 | { |
| 3698 | delete_keyboard_wait_descriptor (fileno (tty->input)); |
| 3699 | if (tty->input != stdin) |
| 3700 | fclose (tty->input); |
| 3701 | } |
| 3702 | if (tty->output && tty->output != stdout && tty->output != tty->input) |
| 3703 | fclose (tty->output); |
| 3704 | if (tty->termscript) |
| 3705 | fclose (tty->termscript); |
| 3706 | |
| 3707 | xfree (tty->old_tty); |
| 3708 | xfree (tty->Wcm); |
| 3709 | xfree (tty->termcap_strings_buffer); |
| 3710 | xfree (tty->termcap_term_buffer); |
| 3711 | |
| 3712 | memset (tty, 0, sizeof (struct tty_display_info)); |
| 3713 | xfree (tty); |
| 3714 | } |
| 3715 | |
| 3716 | \f |
| 3717 | |
| 3718 | /* Mark the pointers in the tty_display_info objects. |
| 3719 | Called by the Fgarbage_collector. */ |
| 3720 | |
| 3721 | void |
| 3722 | mark_ttys (void) |
| 3723 | { |
| 3724 | struct tty_display_info *tty; |
| 3725 | |
| 3726 | for (tty = tty_list; tty; tty = tty->next) |
| 3727 | mark_object (tty->top_frame); |
| 3728 | } |
| 3729 | |
| 3730 | \f |
| 3731 | |
| 3732 | void |
| 3733 | syms_of_term (void) |
| 3734 | { |
| 3735 | DEFVAR_BOOL ("system-uses-terminfo", system_uses_terminfo, |
| 3736 | doc: /* Non-nil means the system uses terminfo rather than termcap. |
| 3737 | This variable can be used by terminal emulator packages. */); |
| 3738 | #ifdef TERMINFO |
| 3739 | system_uses_terminfo = 1; |
| 3740 | #else |
| 3741 | system_uses_terminfo = 0; |
| 3742 | #endif |
| 3743 | |
| 3744 | DEFVAR_LISP ("suspend-tty-functions", Vsuspend_tty_functions, |
| 3745 | doc: /* Functions to be run after suspending a tty. |
| 3746 | The functions are run with one argument, the terminal object to be suspended. |
| 3747 | See `suspend-tty'. */); |
| 3748 | Vsuspend_tty_functions = Qnil; |
| 3749 | |
| 3750 | |
| 3751 | DEFVAR_LISP ("resume-tty-functions", Vresume_tty_functions, |
| 3752 | doc: /* Functions to be run after resuming a tty. |
| 3753 | The functions are run with one argument, the terminal object that was revived. |
| 3754 | See `resume-tty'. */); |
| 3755 | Vresume_tty_functions = Qnil; |
| 3756 | |
| 3757 | DEFVAR_BOOL ("visible-cursor", visible_cursor, |
| 3758 | doc: /* Non-nil means to make the cursor very visible. |
| 3759 | This only has an effect when running in a text terminal. |
| 3760 | What means \"very visible\" is up to your terminal. It may make the cursor |
| 3761 | bigger, or it may make it blink, or it may do nothing at all. */); |
| 3762 | visible_cursor = 1; |
| 3763 | |
| 3764 | defsubr (&Stty_display_color_p); |
| 3765 | defsubr (&Stty_display_color_cells); |
| 3766 | defsubr (&Stty_no_underline); |
| 3767 | defsubr (&Stty_type); |
| 3768 | defsubr (&Scontrolling_tty_p); |
| 3769 | defsubr (&Ssuspend_tty); |
| 3770 | defsubr (&Sresume_tty); |
| 3771 | #ifdef HAVE_GPM |
| 3772 | defsubr (&Sgpm_mouse_start); |
| 3773 | defsubr (&Sgpm_mouse_stop); |
| 3774 | #endif /* HAVE_GPM */ |
| 3775 | |
| 3776 | #ifndef DOS_NT |
| 3777 | default_orig_pair = NULL; |
| 3778 | default_set_foreground = NULL; |
| 3779 | default_set_background = NULL; |
| 3780 | #endif /* !DOS_NT */ |
| 3781 | |
| 3782 | encode_terminal_src = NULL; |
| 3783 | encode_terminal_dst = NULL; |
| 3784 | } |