| 1 | /* Terminal control module for terminals described by TERMCAP |
| 2 | Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1998, 2000, 2001, |
| 3 | 2002, 2003, 2004, 2005 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 2, or (at your option) |
| 10 | 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; see the file COPYING. If not, write to |
| 19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 20 | Boston, MA 02110-1301, USA. */ |
| 21 | |
| 22 | /* New redisplay, TTY faces by Gerd Moellmann <gerd@gnu.org>. */ |
| 23 | |
| 24 | #include <config.h> |
| 25 | #include <stdio.h> |
| 26 | #include <ctype.h> |
| 27 | #include <string.h> |
| 28 | |
| 29 | #include "termchar.h" |
| 30 | #include "termopts.h" |
| 31 | #include "lisp.h" |
| 32 | #include "charset.h" |
| 33 | #include "coding.h" |
| 34 | #include "keyboard.h" |
| 35 | #include "frame.h" |
| 36 | #include "disptab.h" |
| 37 | #include "termhooks.h" |
| 38 | #include "dispextern.h" |
| 39 | #include "window.h" |
| 40 | #include "keymap.h" |
| 41 | |
| 42 | /* For now, don't try to include termcap.h. On some systems, |
| 43 | configure finds a non-standard termcap.h that the main build |
| 44 | won't find. */ |
| 45 | |
| 46 | #if defined HAVE_TERMCAP_H && 0 |
| 47 | #include <termcap.h> |
| 48 | #else |
| 49 | extern void tputs P_ ((const char *, int, int (*)(int))); |
| 50 | extern int tgetent P_ ((char *, const char *)); |
| 51 | extern int tgetflag P_ ((char *id)); |
| 52 | extern int tgetnum P_ ((char *id)); |
| 53 | #endif |
| 54 | |
| 55 | #include "cm.h" |
| 56 | #ifdef HAVE_X_WINDOWS |
| 57 | #include "xterm.h" |
| 58 | #endif |
| 59 | #ifdef MAC_OS |
| 60 | #include "macterm.h" |
| 61 | #endif |
| 62 | |
| 63 | static void turn_on_face P_ ((struct frame *, int face_id)); |
| 64 | static void turn_off_face P_ ((struct frame *, int face_id)); |
| 65 | static void tty_show_cursor P_ ((void)); |
| 66 | static void tty_hide_cursor P_ ((void)); |
| 67 | |
| 68 | #define OUTPUT(a) \ |
| 69 | tputs (a, (int) (FRAME_LINES (XFRAME (selected_frame)) - curY), cmputc) |
| 70 | #define OUTPUT1(a) tputs (a, 1, cmputc) |
| 71 | #define OUTPUTL(a, lines) tputs (a, lines, cmputc) |
| 72 | |
| 73 | #define OUTPUT_IF(a) \ |
| 74 | do { \ |
| 75 | if (a) \ |
| 76 | tputs (a, (int) (FRAME_LINES (XFRAME (selected_frame)) \ |
| 77 | - curY), cmputc); \ |
| 78 | } while (0) |
| 79 | |
| 80 | #define OUTPUT1_IF(a) do { if (a) tputs (a, 1, cmputc); } while (0) |
| 81 | |
| 82 | /* Display space properties */ |
| 83 | |
| 84 | extern Lisp_Object Qspace, QCalign_to, QCwidth; |
| 85 | |
| 86 | /* Function to use to ring the bell. */ |
| 87 | |
| 88 | Lisp_Object Vring_bell_function; |
| 89 | |
| 90 | /* Terminal characteristics that higher levels want to look at. |
| 91 | These are all extern'd in termchar.h */ |
| 92 | |
| 93 | int must_write_spaces; /* Nonzero means spaces in the text |
| 94 | must actually be output; can't just skip |
| 95 | over some columns to leave them blank. */ |
| 96 | int min_padding_speed; /* Speed below which no padding necessary */ |
| 97 | |
| 98 | int line_ins_del_ok; /* Terminal can insert and delete lines */ |
| 99 | int char_ins_del_ok; /* Terminal can insert and delete chars */ |
| 100 | int scroll_region_ok; /* Terminal supports setting the |
| 101 | scroll window */ |
| 102 | int scroll_region_cost; /* Cost of setting a scroll window, |
| 103 | measured in characters */ |
| 104 | int memory_below_frame; /* Terminal remembers lines |
| 105 | scrolled off bottom */ |
| 106 | int fast_clear_end_of_line; /* Terminal has a `ce' string */ |
| 107 | |
| 108 | /* Nonzero means no need to redraw the entire frame on resuming |
| 109 | a suspended Emacs. This is useful on terminals with multiple pages, |
| 110 | where one page is used for Emacs and another for all else. */ |
| 111 | |
| 112 | int no_redraw_on_reenter; |
| 113 | |
| 114 | /* Hook functions that you can set to snap out the functions in this file. |
| 115 | These are all extern'd in termhooks.h */ |
| 116 | |
| 117 | void (*cursor_to_hook) P_ ((int, int)); |
| 118 | void (*raw_cursor_to_hook) P_ ((int, int)); |
| 119 | void (*clear_to_end_hook) P_ ((void)); |
| 120 | void (*clear_frame_hook) P_ ((void)); |
| 121 | void (*clear_end_of_line_hook) P_ ((int)); |
| 122 | |
| 123 | void (*ins_del_lines_hook) P_ ((int, int)); |
| 124 | |
| 125 | void (*delete_glyphs_hook) P_ ((int)); |
| 126 | |
| 127 | void (*ring_bell_hook) P_ ((void)); |
| 128 | |
| 129 | void (*reset_terminal_modes_hook) P_ ((void)); |
| 130 | void (*set_terminal_modes_hook) P_ ((void)); |
| 131 | void (*update_begin_hook) P_ ((struct frame *)); |
| 132 | void (*update_end_hook) P_ ((struct frame *)); |
| 133 | void (*set_terminal_window_hook) P_ ((int)); |
| 134 | void (*insert_glyphs_hook) P_ ((struct glyph *, int)); |
| 135 | void (*write_glyphs_hook) P_ ((struct glyph *, int)); |
| 136 | void (*delete_glyphs_hook) P_ ((int)); |
| 137 | |
| 138 | int (*read_socket_hook) P_ ((int, int, struct input_event *)); |
| 139 | |
| 140 | void (*frame_up_to_date_hook) P_ ((struct frame *)); |
| 141 | |
| 142 | /* Return the current position of the mouse. |
| 143 | |
| 144 | Set *f to the frame the mouse is in, or zero if the mouse is in no |
| 145 | Emacs frame. If it is set to zero, all the other arguments are |
| 146 | garbage. |
| 147 | |
| 148 | If the motion started in a scroll bar, set *bar_window to the |
| 149 | scroll bar's window, *part to the part the mouse is currently over, |
| 150 | *x to the position of the mouse along the scroll bar, and *y to the |
| 151 | overall length of the scroll bar. |
| 152 | |
| 153 | Otherwise, set *bar_window to Qnil, and *x and *y to the column and |
| 154 | row of the character cell the mouse is over. |
| 155 | |
| 156 | Set *time to the time the mouse was at the returned position. |
| 157 | |
| 158 | This should clear mouse_moved until the next motion |
| 159 | event arrives. */ |
| 160 | |
| 161 | void (*mouse_position_hook) P_ ((FRAME_PTR *f, int insist, |
| 162 | Lisp_Object *bar_window, |
| 163 | enum scroll_bar_part *part, |
| 164 | Lisp_Object *x, |
| 165 | Lisp_Object *y, |
| 166 | unsigned long *time)); |
| 167 | |
| 168 | /* When reading from a minibuffer in a different frame, Emacs wants |
| 169 | to shift the highlight from the selected frame to the mini-buffer's |
| 170 | frame; under X, this means it lies about where the focus is. |
| 171 | This hook tells the window system code to re-decide where to put |
| 172 | the highlight. */ |
| 173 | |
| 174 | void (*frame_rehighlight_hook) P_ ((FRAME_PTR f)); |
| 175 | |
| 176 | /* If we're displaying frames using a window system that can stack |
| 177 | frames on top of each other, this hook allows you to bring a frame |
| 178 | to the front, or bury it behind all the other windows. If this |
| 179 | hook is zero, that means the device we're displaying on doesn't |
| 180 | support overlapping frames, so there's no need to raise or lower |
| 181 | anything. |
| 182 | |
| 183 | If RAISE is non-zero, F is brought to the front, before all other |
| 184 | windows. If RAISE is zero, F is sent to the back, behind all other |
| 185 | windows. */ |
| 186 | |
| 187 | void (*frame_raise_lower_hook) P_ ((FRAME_PTR f, int raise)); |
| 188 | |
| 189 | /* Set the vertical scroll bar for WINDOW to have its upper left corner |
| 190 | at (TOP, LEFT), and be LENGTH rows high. Set its handle to |
| 191 | indicate that we are displaying PORTION characters out of a total |
| 192 | of WHOLE characters, starting at POSITION. If WINDOW doesn't yet |
| 193 | have a scroll bar, create one for it. */ |
| 194 | |
| 195 | void (*set_vertical_scroll_bar_hook) |
| 196 | P_ ((struct window *window, |
| 197 | int portion, int whole, int position)); |
| 198 | |
| 199 | |
| 200 | /* The following three hooks are used when we're doing a thorough |
| 201 | redisplay of the frame. We don't explicitly know which scroll bars |
| 202 | are going to be deleted, because keeping track of when windows go |
| 203 | away is a real pain - can you say set-window-configuration? |
| 204 | Instead, we just assert at the beginning of redisplay that *all* |
| 205 | scroll bars are to be removed, and then save scroll bars from the |
| 206 | fiery pit when we actually redisplay their window. */ |
| 207 | |
| 208 | /* Arrange for all scroll bars on FRAME to be removed at the next call |
| 209 | to `*judge_scroll_bars_hook'. A scroll bar may be spared if |
| 210 | `*redeem_scroll_bar_hook' is applied to its window before the judgment. |
| 211 | |
| 212 | This should be applied to each frame each time its window tree is |
| 213 | redisplayed, even if it is not displaying scroll bars at the moment; |
| 214 | if the HAS_SCROLL_BARS flag has just been turned off, only calling |
| 215 | this and the judge_scroll_bars_hook will get rid of them. |
| 216 | |
| 217 | If non-zero, this hook should be safe to apply to any frame, |
| 218 | whether or not it can support scroll bars, and whether or not it is |
| 219 | currently displaying them. */ |
| 220 | |
| 221 | void (*condemn_scroll_bars_hook) P_ ((FRAME_PTR frame)); |
| 222 | |
| 223 | /* Unmark WINDOW's scroll bar for deletion in this judgement cycle. |
| 224 | Note that it's okay to redeem a scroll bar that is not condemned. */ |
| 225 | |
| 226 | void (*redeem_scroll_bar_hook) P_ ((struct window *window)); |
| 227 | |
| 228 | /* Remove all scroll bars on FRAME that haven't been saved since the |
| 229 | last call to `*condemn_scroll_bars_hook'. |
| 230 | |
| 231 | This should be applied to each frame after each time its window |
| 232 | tree is redisplayed, even if it is not displaying scroll bars at the |
| 233 | moment; if the HAS_SCROLL_BARS flag has just been turned off, only |
| 234 | calling this and condemn_scroll_bars_hook will get rid of them. |
| 235 | |
| 236 | If non-zero, this hook should be safe to apply to any frame, |
| 237 | whether or not it can support scroll bars, and whether or not it is |
| 238 | currently displaying them. */ |
| 239 | |
| 240 | void (*judge_scroll_bars_hook) P_ ((FRAME_PTR FRAME)); |
| 241 | |
| 242 | /* Strings, numbers and flags taken from the termcap entry. */ |
| 243 | |
| 244 | char *TS_ins_line; /* "al" */ |
| 245 | char *TS_ins_multi_lines; /* "AL" (one parameter, # lines to insert) */ |
| 246 | char *TS_bell; /* "bl" */ |
| 247 | char *TS_clr_to_bottom; /* "cd" */ |
| 248 | char *TS_clr_line; /* "ce", clear to end of line */ |
| 249 | char *TS_clr_frame; /* "cl" */ |
| 250 | char *TS_set_scroll_region; /* "cs" (2 params, first line and last line) */ |
| 251 | char *TS_set_scroll_region_1; /* "cS" (4 params: total lines, |
| 252 | lines above scroll region, lines below it, |
| 253 | total lines again) */ |
| 254 | char *TS_del_char; /* "dc" */ |
| 255 | char *TS_del_multi_chars; /* "DC" (one parameter, # chars to delete) */ |
| 256 | char *TS_del_line; /* "dl" */ |
| 257 | char *TS_del_multi_lines; /* "DL" (one parameter, # lines to delete) */ |
| 258 | char *TS_delete_mode; /* "dm", enter character-delete mode */ |
| 259 | char *TS_end_delete_mode; /* "ed", leave character-delete mode */ |
| 260 | char *TS_end_insert_mode; /* "ei", leave character-insert mode */ |
| 261 | char *TS_ins_char; /* "ic" */ |
| 262 | char *TS_ins_multi_chars; /* "IC" (one parameter, # chars to insert) */ |
| 263 | char *TS_insert_mode; /* "im", enter character-insert mode */ |
| 264 | char *TS_pad_inserted_char; /* "ip". Just padding, no commands. */ |
| 265 | char *TS_end_keypad_mode; /* "ke" */ |
| 266 | char *TS_keypad_mode; /* "ks" */ |
| 267 | char *TS_pad_char; /* "pc", char to use as padding */ |
| 268 | char *TS_repeat; /* "rp" (2 params, # times to repeat |
| 269 | and character to be repeated) */ |
| 270 | char *TS_end_standout_mode; /* "se" */ |
| 271 | char *TS_fwd_scroll; /* "sf" */ |
| 272 | char *TS_standout_mode; /* "so" */ |
| 273 | char *TS_rev_scroll; /* "sr" */ |
| 274 | char *TS_end_termcap_modes; /* "te" */ |
| 275 | char *TS_termcap_modes; /* "ti" */ |
| 276 | char *TS_visible_bell; /* "vb" */ |
| 277 | char *TS_cursor_normal; /* "ve" */ |
| 278 | char *TS_cursor_visible; /* "vs" */ |
| 279 | char *TS_cursor_invisible; /* "vi" */ |
| 280 | char *TS_set_window; /* "wi" (4 params, start and end of window, |
| 281 | each as vpos and hpos) */ |
| 282 | |
| 283 | /* Value of the "NC" (no_color_video) capability, or 0 if not |
| 284 | present. */ |
| 285 | |
| 286 | static int TN_no_color_video; |
| 287 | |
| 288 | /* Meaning of bits in no_color_video. Each bit set means that the |
| 289 | corresponding attribute cannot be combined with colors. */ |
| 290 | |
| 291 | enum no_color_bit |
| 292 | { |
| 293 | NC_STANDOUT = 1 << 0, |
| 294 | NC_UNDERLINE = 1 << 1, |
| 295 | NC_REVERSE = 1 << 2, |
| 296 | NC_BLINK = 1 << 3, |
| 297 | NC_DIM = 1 << 4, |
| 298 | NC_BOLD = 1 << 5, |
| 299 | NC_INVIS = 1 << 6, |
| 300 | NC_PROTECT = 1 << 7, |
| 301 | NC_ALT_CHARSET = 1 << 8 |
| 302 | }; |
| 303 | |
| 304 | /* "md" -- turn on bold (extra bright mode). */ |
| 305 | |
| 306 | char *TS_enter_bold_mode; |
| 307 | |
| 308 | /* "mh" -- turn on half-bright mode. */ |
| 309 | |
| 310 | char *TS_enter_dim_mode; |
| 311 | |
| 312 | /* "mb" -- enter blinking mode. */ |
| 313 | |
| 314 | char *TS_enter_blink_mode; |
| 315 | |
| 316 | /* "mr" -- enter reverse video mode. */ |
| 317 | |
| 318 | char *TS_enter_reverse_mode; |
| 319 | |
| 320 | /* "us"/"ue" -- start/end underlining. */ |
| 321 | |
| 322 | char *TS_exit_underline_mode, *TS_enter_underline_mode; |
| 323 | |
| 324 | /* "as"/"ae" -- start/end alternate character set. Not really |
| 325 | supported, yet. */ |
| 326 | |
| 327 | char *TS_enter_alt_charset_mode, *TS_exit_alt_charset_mode; |
| 328 | |
| 329 | /* "me" -- switch appearances off. */ |
| 330 | |
| 331 | char *TS_exit_attribute_mode; |
| 332 | |
| 333 | /* "Co" -- number of colors. */ |
| 334 | |
| 335 | int TN_max_colors; |
| 336 | |
| 337 | /* "pa" -- max. number of color pairs on screen. Not handled yet. |
| 338 | Could be a problem if not equal to TN_max_colors * TN_max_colors. */ |
| 339 | |
| 340 | int TN_max_pairs; |
| 341 | |
| 342 | /* "op" -- SVr4 set default pair to its original value. */ |
| 343 | |
| 344 | char *TS_orig_pair; |
| 345 | |
| 346 | /* "AF"/"AB" or "Sf"/"Sb"-- set ANSI or SVr4 foreground/background color. |
| 347 | 1 param, the color index. */ |
| 348 | |
| 349 | char *TS_set_foreground, *TS_set_background; |
| 350 | |
| 351 | int TF_hazeltine; /* termcap hz flag. */ |
| 352 | int TF_insmode_motion; /* termcap mi flag: can move while in insert mode. */ |
| 353 | int TF_standout_motion; /* termcap mi flag: can move while in standout mode. */ |
| 354 | int TF_underscore; /* termcap ul flag: _ underlines if over-struck on |
| 355 | non-blank position. Must clear before writing _. */ |
| 356 | int TF_teleray; /* termcap xt flag: many weird consequences. |
| 357 | For t1061. */ |
| 358 | |
| 359 | static int RPov; /* # chars to start a TS_repeat */ |
| 360 | |
| 361 | static int delete_in_insert_mode; /* delete mode == insert mode */ |
| 362 | |
| 363 | static int se_is_so; /* 1 if same string both enters and leaves |
| 364 | standout mode */ |
| 365 | |
| 366 | /* internal state */ |
| 367 | |
| 368 | /* The largest frame width in any call to calculate_costs. */ |
| 369 | |
| 370 | int max_frame_cols; |
| 371 | |
| 372 | /* The largest frame height in any call to calculate_costs. */ |
| 373 | |
| 374 | int max_frame_lines; |
| 375 | |
| 376 | static int costs_set; /* Nonzero if costs have been calculated. */ |
| 377 | |
| 378 | int insert_mode; /* Nonzero when in insert mode. */ |
| 379 | int standout_mode; /* Nonzero when in standout mode. */ |
| 380 | |
| 381 | /* Size of window specified by higher levels. |
| 382 | This is the number of lines, from the top of frame downwards, |
| 383 | which can participate in insert-line/delete-line operations. |
| 384 | |
| 385 | Effectively it excludes the bottom frame_lines - specified_window_size |
| 386 | lines from those operations. */ |
| 387 | |
| 388 | int specified_window; |
| 389 | |
| 390 | /* Frame currently being redisplayed; 0 if not currently redisplaying. |
| 391 | (Direct output does not count). */ |
| 392 | |
| 393 | FRAME_PTR updating_frame; |
| 394 | |
| 395 | /* Provided for lisp packages. */ |
| 396 | |
| 397 | static int system_uses_terminfo; |
| 398 | |
| 399 | /* Flag used in tty_show/hide_cursor. */ |
| 400 | |
| 401 | static int tty_cursor_hidden; |
| 402 | |
| 403 | char *tparam (); |
| 404 | |
| 405 | extern char *tgetstr (); |
| 406 | \f |
| 407 | |
| 408 | #ifdef WINDOWSNT |
| 409 | /* We aren't X windows, but we aren't termcap either. This makes me |
| 410 | uncertain as to what value to use for frame.output_method. For |
| 411 | this file, we'll define FRAME_TERMCAP_P to be zero so that our |
| 412 | output hooks get called instead of the termcap functions. Probably |
| 413 | the best long-term solution is to define an output_windows_nt... */ |
| 414 | |
| 415 | #undef FRAME_TERMCAP_P |
| 416 | #define FRAME_TERMCAP_P(_f_) 0 |
| 417 | #endif /* WINDOWSNT */ |
| 418 | |
| 419 | void |
| 420 | ring_bell () |
| 421 | { |
| 422 | if (!NILP (Vring_bell_function)) |
| 423 | { |
| 424 | Lisp_Object function; |
| 425 | |
| 426 | /* Temporarily set the global variable to nil |
| 427 | so that if we get an error, it stays nil |
| 428 | and we don't call it over and over. |
| 429 | |
| 430 | We don't specbind it, because that would carefully |
| 431 | restore the bad value if there's an error |
| 432 | and make the loop of errors happen anyway. */ |
| 433 | |
| 434 | function = Vring_bell_function; |
| 435 | Vring_bell_function = Qnil; |
| 436 | |
| 437 | call0 (function); |
| 438 | |
| 439 | Vring_bell_function = function; |
| 440 | } |
| 441 | else if (!FRAME_TERMCAP_P (XFRAME (selected_frame))) |
| 442 | (*ring_bell_hook) (); |
| 443 | else |
| 444 | OUTPUT (TS_visible_bell && visible_bell ? TS_visible_bell : TS_bell); |
| 445 | } |
| 446 | |
| 447 | void |
| 448 | set_terminal_modes () |
| 449 | { |
| 450 | if (FRAME_TERMCAP_P (XFRAME (selected_frame))) |
| 451 | { |
| 452 | if (TS_termcap_modes) |
| 453 | OUTPUT (TS_termcap_modes); |
| 454 | else |
| 455 | { |
| 456 | /* Output enough newlines to scroll all the old screen contents |
| 457 | off the screen, so it won't be overwritten and lost. */ |
| 458 | int i; |
| 459 | for (i = 0; i < FRAME_LINES (XFRAME (selected_frame)); i++) |
| 460 | putchar ('\n'); |
| 461 | } |
| 462 | |
| 463 | OUTPUT_IF (TS_cursor_visible); |
| 464 | OUTPUT_IF (TS_keypad_mode); |
| 465 | losecursor (); |
| 466 | } |
| 467 | else |
| 468 | (*set_terminal_modes_hook) (); |
| 469 | } |
| 470 | |
| 471 | void |
| 472 | reset_terminal_modes () |
| 473 | { |
| 474 | if (FRAME_TERMCAP_P (XFRAME (selected_frame))) |
| 475 | { |
| 476 | turn_off_highlight (); |
| 477 | turn_off_insert (); |
| 478 | OUTPUT_IF (TS_end_keypad_mode); |
| 479 | OUTPUT_IF (TS_cursor_normal); |
| 480 | OUTPUT_IF (TS_end_termcap_modes); |
| 481 | OUTPUT_IF (TS_orig_pair); |
| 482 | /* Output raw CR so kernel can track the cursor hpos. */ |
| 483 | cmputc ('\r'); |
| 484 | } |
| 485 | else if (reset_terminal_modes_hook) |
| 486 | (*reset_terminal_modes_hook) (); |
| 487 | } |
| 488 | |
| 489 | void |
| 490 | update_begin (f) |
| 491 | struct frame *f; |
| 492 | { |
| 493 | updating_frame = f; |
| 494 | if (!FRAME_TERMCAP_P (f)) |
| 495 | update_begin_hook (f); |
| 496 | } |
| 497 | |
| 498 | void |
| 499 | update_end (f) |
| 500 | struct frame *f; |
| 501 | { |
| 502 | if (FRAME_TERMCAP_P (f)) |
| 503 | { |
| 504 | if (!XWINDOW (selected_window)->cursor_off_p) |
| 505 | tty_show_cursor (); |
| 506 | turn_off_insert (); |
| 507 | background_highlight (); |
| 508 | } |
| 509 | else |
| 510 | update_end_hook (f); |
| 511 | |
| 512 | updating_frame = NULL; |
| 513 | } |
| 514 | |
| 515 | void |
| 516 | set_terminal_window (size) |
| 517 | int size; |
| 518 | { |
| 519 | if (FRAME_TERMCAP_P (updating_frame)) |
| 520 | { |
| 521 | specified_window = size ? size : FRAME_LINES (updating_frame); |
| 522 | if (scroll_region_ok) |
| 523 | set_scroll_region (0, specified_window); |
| 524 | } |
| 525 | else |
| 526 | set_terminal_window_hook (size); |
| 527 | } |
| 528 | |
| 529 | void |
| 530 | set_scroll_region (start, stop) |
| 531 | int start, stop; |
| 532 | { |
| 533 | char *buf; |
| 534 | struct frame *sf = XFRAME (selected_frame); |
| 535 | |
| 536 | if (TS_set_scroll_region) |
| 537 | buf = tparam (TS_set_scroll_region, 0, 0, start, stop - 1); |
| 538 | else if (TS_set_scroll_region_1) |
| 539 | buf = tparam (TS_set_scroll_region_1, 0, 0, |
| 540 | FRAME_LINES (sf), start, |
| 541 | FRAME_LINES (sf) - stop, |
| 542 | FRAME_LINES (sf)); |
| 543 | else |
| 544 | buf = tparam (TS_set_window, 0, 0, start, 0, stop, FRAME_COLS (sf)); |
| 545 | |
| 546 | OUTPUT (buf); |
| 547 | xfree (buf); |
| 548 | losecursor (); |
| 549 | } |
| 550 | |
| 551 | \f |
| 552 | static void |
| 553 | turn_on_insert () |
| 554 | { |
| 555 | if (!insert_mode) |
| 556 | OUTPUT (TS_insert_mode); |
| 557 | insert_mode = 1; |
| 558 | } |
| 559 | |
| 560 | void |
| 561 | turn_off_insert () |
| 562 | { |
| 563 | if (insert_mode) |
| 564 | OUTPUT (TS_end_insert_mode); |
| 565 | insert_mode = 0; |
| 566 | } |
| 567 | \f |
| 568 | /* Handle highlighting. */ |
| 569 | |
| 570 | void |
| 571 | turn_off_highlight () |
| 572 | { |
| 573 | if (standout_mode) |
| 574 | OUTPUT_IF (TS_end_standout_mode); |
| 575 | standout_mode = 0; |
| 576 | } |
| 577 | |
| 578 | static void |
| 579 | turn_on_highlight () |
| 580 | { |
| 581 | if (!standout_mode) |
| 582 | OUTPUT_IF (TS_standout_mode); |
| 583 | standout_mode = 1; |
| 584 | } |
| 585 | |
| 586 | static void |
| 587 | toggle_highlight () |
| 588 | { |
| 589 | if (standout_mode) |
| 590 | turn_off_highlight (); |
| 591 | else |
| 592 | turn_on_highlight (); |
| 593 | } |
| 594 | |
| 595 | |
| 596 | /* Make cursor invisible. */ |
| 597 | |
| 598 | static void |
| 599 | tty_hide_cursor () |
| 600 | { |
| 601 | if (tty_cursor_hidden == 0) |
| 602 | { |
| 603 | tty_cursor_hidden = 1; |
| 604 | OUTPUT_IF (TS_cursor_invisible); |
| 605 | } |
| 606 | } |
| 607 | |
| 608 | |
| 609 | /* Ensure that cursor is visible. */ |
| 610 | |
| 611 | static void |
| 612 | tty_show_cursor () |
| 613 | { |
| 614 | if (tty_cursor_hidden) |
| 615 | { |
| 616 | tty_cursor_hidden = 0; |
| 617 | OUTPUT_IF (TS_cursor_normal); |
| 618 | OUTPUT_IF (TS_cursor_visible); |
| 619 | } |
| 620 | } |
| 621 | |
| 622 | |
| 623 | /* Set standout mode to the state it should be in for |
| 624 | empty space inside windows. What this is, |
| 625 | depends on the user option inverse-video. */ |
| 626 | |
| 627 | void |
| 628 | background_highlight () |
| 629 | { |
| 630 | if (inverse_video) |
| 631 | turn_on_highlight (); |
| 632 | else |
| 633 | turn_off_highlight (); |
| 634 | } |
| 635 | |
| 636 | /* Set standout mode to the mode specified for the text to be output. */ |
| 637 | |
| 638 | static void |
| 639 | highlight_if_desired () |
| 640 | { |
| 641 | if (inverse_video) |
| 642 | turn_on_highlight (); |
| 643 | else |
| 644 | turn_off_highlight (); |
| 645 | } |
| 646 | \f |
| 647 | |
| 648 | /* Move cursor to row/column position VPOS/HPOS. HPOS/VPOS are |
| 649 | frame-relative coordinates. */ |
| 650 | |
| 651 | void |
| 652 | cursor_to (vpos, hpos) |
| 653 | int vpos, hpos; |
| 654 | { |
| 655 | struct frame *f = updating_frame ? updating_frame : XFRAME (selected_frame); |
| 656 | |
| 657 | if (! FRAME_TERMCAP_P (f) && cursor_to_hook) |
| 658 | { |
| 659 | (*cursor_to_hook) (vpos, hpos); |
| 660 | return; |
| 661 | } |
| 662 | |
| 663 | /* Detect the case where we are called from reset_sys_modes |
| 664 | and the costs have never been calculated. Do nothing. */ |
| 665 | if (! costs_set) |
| 666 | return; |
| 667 | |
| 668 | if (curY == vpos && curX == hpos) |
| 669 | return; |
| 670 | if (!TF_standout_motion) |
| 671 | background_highlight (); |
| 672 | if (!TF_insmode_motion) |
| 673 | turn_off_insert (); |
| 674 | cmgoto (vpos, hpos); |
| 675 | } |
| 676 | |
| 677 | /* Similar but don't take any account of the wasted characters. */ |
| 678 | |
| 679 | void |
| 680 | raw_cursor_to (row, col) |
| 681 | int row, col; |
| 682 | { |
| 683 | struct frame *f = updating_frame ? updating_frame : XFRAME (selected_frame); |
| 684 | if (! FRAME_TERMCAP_P (f)) |
| 685 | { |
| 686 | (*raw_cursor_to_hook) (row, col); |
| 687 | return; |
| 688 | } |
| 689 | if (curY == row && curX == col) |
| 690 | return; |
| 691 | if (!TF_standout_motion) |
| 692 | background_highlight (); |
| 693 | if (!TF_insmode_motion) |
| 694 | turn_off_insert (); |
| 695 | cmgoto (row, col); |
| 696 | } |
| 697 | \f |
| 698 | /* Erase operations */ |
| 699 | |
| 700 | /* clear from cursor to end of frame */ |
| 701 | void |
| 702 | clear_to_end () |
| 703 | { |
| 704 | register int i; |
| 705 | |
| 706 | if (clear_to_end_hook && ! FRAME_TERMCAP_P (updating_frame)) |
| 707 | { |
| 708 | (*clear_to_end_hook) (); |
| 709 | return; |
| 710 | } |
| 711 | if (TS_clr_to_bottom) |
| 712 | { |
| 713 | background_highlight (); |
| 714 | OUTPUT (TS_clr_to_bottom); |
| 715 | } |
| 716 | else |
| 717 | { |
| 718 | for (i = curY; i < FRAME_LINES (XFRAME (selected_frame)); i++) |
| 719 | { |
| 720 | cursor_to (i, 0); |
| 721 | clear_end_of_line (FRAME_COLS (XFRAME (selected_frame))); |
| 722 | } |
| 723 | } |
| 724 | } |
| 725 | |
| 726 | /* Clear entire frame */ |
| 727 | |
| 728 | void |
| 729 | clear_frame () |
| 730 | { |
| 731 | struct frame *sf = XFRAME (selected_frame); |
| 732 | |
| 733 | if (clear_frame_hook |
| 734 | && ! FRAME_TERMCAP_P ((updating_frame ? updating_frame : sf))) |
| 735 | { |
| 736 | (*clear_frame_hook) (); |
| 737 | return; |
| 738 | } |
| 739 | if (TS_clr_frame) |
| 740 | { |
| 741 | background_highlight (); |
| 742 | OUTPUT (TS_clr_frame); |
| 743 | cmat (0, 0); |
| 744 | } |
| 745 | else |
| 746 | { |
| 747 | cursor_to (0, 0); |
| 748 | clear_to_end (); |
| 749 | } |
| 750 | } |
| 751 | |
| 752 | /* Clear from cursor to end of line. |
| 753 | Assume that the line is already clear starting at column first_unused_hpos. |
| 754 | |
| 755 | Note that the cursor may be moved, on terminals lacking a `ce' string. */ |
| 756 | |
| 757 | void |
| 758 | clear_end_of_line (first_unused_hpos) |
| 759 | int first_unused_hpos; |
| 760 | { |
| 761 | register int i; |
| 762 | |
| 763 | if (clear_end_of_line_hook |
| 764 | && ! FRAME_TERMCAP_P ((updating_frame |
| 765 | ? updating_frame |
| 766 | : XFRAME (selected_frame)))) |
| 767 | { |
| 768 | (*clear_end_of_line_hook) (first_unused_hpos); |
| 769 | return; |
| 770 | } |
| 771 | |
| 772 | /* Detect the case where we are called from reset_sys_modes |
| 773 | and the costs have never been calculated. Do nothing. */ |
| 774 | if (! costs_set) |
| 775 | return; |
| 776 | |
| 777 | if (curX >= first_unused_hpos) |
| 778 | return; |
| 779 | background_highlight (); |
| 780 | if (TS_clr_line) |
| 781 | { |
| 782 | OUTPUT1 (TS_clr_line); |
| 783 | } |
| 784 | else |
| 785 | { /* have to do it the hard way */ |
| 786 | struct frame *sf = XFRAME (selected_frame); |
| 787 | turn_off_insert (); |
| 788 | |
| 789 | /* Do not write in last row last col with Auto-wrap on. */ |
| 790 | if (AutoWrap && curY == FRAME_LINES (sf) - 1 |
| 791 | && first_unused_hpos == FRAME_COLS (sf)) |
| 792 | first_unused_hpos--; |
| 793 | |
| 794 | for (i = curX; i < first_unused_hpos; i++) |
| 795 | { |
| 796 | if (termscript) |
| 797 | fputc (' ', termscript); |
| 798 | putchar (' '); |
| 799 | } |
| 800 | cmplus (first_unused_hpos - curX); |
| 801 | } |
| 802 | } |
| 803 | \f |
| 804 | /* Buffer to store the source and result of code conversion for terminal. */ |
| 805 | static unsigned char *encode_terminal_buf; |
| 806 | /* Allocated size of the above buffer. */ |
| 807 | static int encode_terminal_bufsize; |
| 808 | |
| 809 | /* Encode SRC_LEN glyphs starting at SRC to terminal output codes. |
| 810 | Set CODING->produced to the byte-length of the resulting byte |
| 811 | sequence, and return a pointer to that byte sequence. */ |
| 812 | |
| 813 | unsigned char * |
| 814 | encode_terminal_code (src, src_len, coding) |
| 815 | struct glyph *src; |
| 816 | int src_len; |
| 817 | struct coding_system *coding; |
| 818 | { |
| 819 | struct glyph *src_start = src, *src_end = src + src_len; |
| 820 | register GLYPH g; |
| 821 | unsigned char *buf; |
| 822 | int nchars, nbytes, required; |
| 823 | register int tlen = GLYPH_TABLE_LENGTH; |
| 824 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; |
| 825 | |
| 826 | /* Allocate sufficient size of buffer to store all characters in |
| 827 | multibyte-form. But, it may be enlarged on demand if |
| 828 | Vglyph_table contains a string. */ |
| 829 | required = MAX_MULTIBYTE_LENGTH * src_len; |
| 830 | if (encode_terminal_bufsize < required) |
| 831 | { |
| 832 | if (encode_terminal_bufsize == 0) |
| 833 | encode_terminal_buf = xmalloc (required); |
| 834 | else |
| 835 | encode_terminal_buf = xrealloc (encode_terminal_buf, required); |
| 836 | encode_terminal_bufsize = required; |
| 837 | } |
| 838 | |
| 839 | buf = encode_terminal_buf; |
| 840 | nchars = 0; |
| 841 | while (src < src_end) |
| 842 | { |
| 843 | /* We must skip glyphs to be padded for a wide character. */ |
| 844 | if (! CHAR_GLYPH_PADDING_P (*src)) |
| 845 | { |
| 846 | g = GLYPH_FROM_CHAR_GLYPH (src[0]); |
| 847 | |
| 848 | if (g < 0 || g >= tlen) |
| 849 | { |
| 850 | /* This glyph doesn't has an entry in Vglyph_table. */ |
| 851 | if (CHAR_VALID_P (src->u.ch, 0)) |
| 852 | buf += CHAR_STRING (src->u.ch, buf); |
| 853 | else |
| 854 | *buf++ = SPACEGLYPH; |
| 855 | nchars++; |
| 856 | } |
| 857 | else |
| 858 | { |
| 859 | /* This glyph has an entry in Vglyph_table, |
| 860 | so process any alias before testing for simpleness. */ |
| 861 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); |
| 862 | |
| 863 | if (GLYPH_SIMPLE_P (tbase, tlen, g)) |
| 864 | { |
| 865 | int c = FAST_GLYPH_CHAR (g); |
| 866 | |
| 867 | if (CHAR_VALID_P (c, 0)) |
| 868 | buf += CHAR_STRING (c, buf); |
| 869 | else |
| 870 | *buf++ = SPACEGLYPH; |
| 871 | nchars++; |
| 872 | } |
| 873 | else |
| 874 | { |
| 875 | /* We have a string in Vglyph_table. */ |
| 876 | Lisp_Object string; |
| 877 | |
| 878 | string = tbase[g]; |
| 879 | if (! STRING_MULTIBYTE (string)) |
| 880 | string = string_to_multibyte (string); |
| 881 | nbytes = buf - encode_terminal_buf; |
| 882 | if (encode_terminal_bufsize < nbytes + SBYTES (string)) |
| 883 | { |
| 884 | encode_terminal_bufsize = nbytes + SBYTES (string); |
| 885 | encode_terminal_buf = xrealloc (encode_terminal_buf, |
| 886 | encode_terminal_bufsize); |
| 887 | buf = encode_terminal_buf + nbytes; |
| 888 | } |
| 889 | bcopy (SDATA (string), buf, SBYTES (string)); |
| 890 | buf += SBYTES (string); |
| 891 | nchars += SCHARS (string); |
| 892 | } |
| 893 | } |
| 894 | } |
| 895 | src++; |
| 896 | } |
| 897 | |
| 898 | nbytes = buf - encode_terminal_buf; |
| 899 | coding->src_multibyte = 1; |
| 900 | coding->dst_multibyte = 0; |
| 901 | if (SYMBOLP (coding->pre_write_conversion) |
| 902 | && ! NILP (Ffboundp (coding->pre_write_conversion))) |
| 903 | { |
| 904 | run_pre_write_conversin_on_c_str (&encode_terminal_buf, |
| 905 | &encode_terminal_bufsize, |
| 906 | nchars, nbytes, coding); |
| 907 | nchars = coding->produced_char; |
| 908 | nbytes = coding->produced; |
| 909 | } |
| 910 | required = nbytes + encoding_buffer_size (coding, nbytes); |
| 911 | if (encode_terminal_bufsize < required) |
| 912 | { |
| 913 | encode_terminal_bufsize = required; |
| 914 | encode_terminal_buf = xrealloc (encode_terminal_buf, required); |
| 915 | } |
| 916 | |
| 917 | encode_coding (coding, encode_terminal_buf, encode_terminal_buf + nbytes, |
| 918 | nbytes, encode_terminal_bufsize - nbytes); |
| 919 | return encode_terminal_buf + nbytes; |
| 920 | } |
| 921 | |
| 922 | void |
| 923 | write_glyphs (string, len) |
| 924 | register struct glyph *string; |
| 925 | register int len; |
| 926 | { |
| 927 | struct frame *sf = XFRAME (selected_frame); |
| 928 | struct frame *f = updating_frame ? updating_frame : sf; |
| 929 | unsigned char *conversion_buffer; |
| 930 | struct coding_system *coding; |
| 931 | |
| 932 | if (write_glyphs_hook |
| 933 | && ! FRAME_TERMCAP_P (f)) |
| 934 | { |
| 935 | (*write_glyphs_hook) (string, len); |
| 936 | return; |
| 937 | } |
| 938 | |
| 939 | turn_off_insert (); |
| 940 | tty_hide_cursor (); |
| 941 | |
| 942 | /* Don't dare write in last column of bottom line, if Auto-Wrap, |
| 943 | since that would scroll the whole frame on some terminals. */ |
| 944 | |
| 945 | if (AutoWrap |
| 946 | && curY + 1 == FRAME_LINES (sf) |
| 947 | && (curX + len) == FRAME_COLS (sf)) |
| 948 | len --; |
| 949 | if (len <= 0) |
| 950 | return; |
| 951 | |
| 952 | cmplus (len); |
| 953 | |
| 954 | /* If terminal_coding does any conversion, use it, otherwise use |
| 955 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here |
| 956 | because it always return 1 if the member src_multibyte is 1. */ |
| 957 | coding = (terminal_coding.common_flags & CODING_REQUIRE_ENCODING_MASK |
| 958 | ? &terminal_coding : &safe_terminal_coding); |
| 959 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
| 960 | the tail. */ |
| 961 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
| 962 | |
| 963 | while (len > 0) |
| 964 | { |
| 965 | /* Identify a run of glyphs with the same face. */ |
| 966 | int face_id = string->face_id; |
| 967 | int n; |
| 968 | |
| 969 | for (n = 1; n < len; ++n) |
| 970 | if (string[n].face_id != face_id) |
| 971 | break; |
| 972 | |
| 973 | /* Turn appearance modes of the face of the run on. */ |
| 974 | highlight_if_desired (); |
| 975 | turn_on_face (f, face_id); |
| 976 | |
| 977 | if (n == len) |
| 978 | /* This is the last run. */ |
| 979 | coding->mode |= CODING_MODE_LAST_BLOCK; |
| 980 | conversion_buffer = encode_terminal_code (string, n, coding); |
| 981 | if (coding->produced > 0) |
| 982 | { |
| 983 | fwrite (conversion_buffer, 1, coding->produced, stdout); |
| 984 | if (ferror (stdout)) |
| 985 | clearerr (stdout); |
| 986 | if (termscript) |
| 987 | fwrite (conversion_buffer, 1, coding->produced, termscript); |
| 988 | } |
| 989 | len -= n; |
| 990 | string += n; |
| 991 | |
| 992 | /* Turn appearance modes off. */ |
| 993 | turn_off_face (f, face_id); |
| 994 | turn_off_highlight (); |
| 995 | } |
| 996 | |
| 997 | cmcheckmagic (); |
| 998 | } |
| 999 | |
| 1000 | /* If start is zero, insert blanks instead of a string at start */ |
| 1001 | |
| 1002 | void |
| 1003 | insert_glyphs (start, len) |
| 1004 | register struct glyph *start; |
| 1005 | register int len; |
| 1006 | { |
| 1007 | char *buf; |
| 1008 | struct glyph *glyph = NULL; |
| 1009 | struct frame *f, *sf; |
| 1010 | unsigned char *conversion_buffer; |
| 1011 | unsigned char space[1]; |
| 1012 | struct coding_system *coding; |
| 1013 | |
| 1014 | if (len <= 0) |
| 1015 | return; |
| 1016 | |
| 1017 | if (insert_glyphs_hook) |
| 1018 | { |
| 1019 | (*insert_glyphs_hook) (start, len); |
| 1020 | return; |
| 1021 | } |
| 1022 | |
| 1023 | sf = XFRAME (selected_frame); |
| 1024 | f = updating_frame ? updating_frame : sf; |
| 1025 | |
| 1026 | if (TS_ins_multi_chars) |
| 1027 | { |
| 1028 | buf = tparam (TS_ins_multi_chars, 0, 0, len); |
| 1029 | OUTPUT1 (buf); |
| 1030 | xfree (buf); |
| 1031 | if (start) |
| 1032 | write_glyphs (start, len); |
| 1033 | return; |
| 1034 | } |
| 1035 | |
| 1036 | turn_on_insert (); |
| 1037 | cmplus (len); |
| 1038 | |
| 1039 | if (! start) |
| 1040 | space[0] = SPACEGLYPH; |
| 1041 | |
| 1042 | /* If terminal_coding does any conversion, use it, otherwise use |
| 1043 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here |
| 1044 | because it always return 1 if the member src_multibyte is 1. */ |
| 1045 | coding = (terminal_coding.common_flags & CODING_REQUIRE_ENCODING_MASK |
| 1046 | ? &terminal_coding : &safe_terminal_coding); |
| 1047 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
| 1048 | the tail. */ |
| 1049 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
| 1050 | |
| 1051 | while (len-- > 0) |
| 1052 | { |
| 1053 | OUTPUT1_IF (TS_ins_char); |
| 1054 | if (!start) |
| 1055 | { |
| 1056 | conversion_buffer = space; |
| 1057 | coding->produced = 1; |
| 1058 | } |
| 1059 | else |
| 1060 | { |
| 1061 | highlight_if_desired (); |
| 1062 | turn_on_face (f, start->face_id); |
| 1063 | glyph = start; |
| 1064 | ++start; |
| 1065 | /* We must open sufficient space for a character which |
| 1066 | occupies more than one column. */ |
| 1067 | while (len && CHAR_GLYPH_PADDING_P (*start)) |
| 1068 | { |
| 1069 | OUTPUT1_IF (TS_ins_char); |
| 1070 | start++, len--; |
| 1071 | } |
| 1072 | |
| 1073 | if (len <= 0) |
| 1074 | /* This is the last glyph. */ |
| 1075 | coding->mode |= CODING_MODE_LAST_BLOCK; |
| 1076 | |
| 1077 | conversion_buffer = encode_terminal_code (glyph, 1, coding); |
| 1078 | } |
| 1079 | |
| 1080 | if (coding->produced > 0) |
| 1081 | { |
| 1082 | fwrite (conversion_buffer, 1, coding->produced, stdout); |
| 1083 | if (ferror (stdout)) |
| 1084 | clearerr (stdout); |
| 1085 | if (termscript) |
| 1086 | fwrite (conversion_buffer, 1, coding->produced, termscript); |
| 1087 | } |
| 1088 | |
| 1089 | OUTPUT1_IF (TS_pad_inserted_char); |
| 1090 | if (start) |
| 1091 | { |
| 1092 | turn_off_face (f, glyph->face_id); |
| 1093 | turn_off_highlight (); |
| 1094 | } |
| 1095 | } |
| 1096 | |
| 1097 | cmcheckmagic (); |
| 1098 | } |
| 1099 | |
| 1100 | void |
| 1101 | delete_glyphs (n) |
| 1102 | register int n; |
| 1103 | { |
| 1104 | char *buf; |
| 1105 | register int i; |
| 1106 | |
| 1107 | if (delete_glyphs_hook && ! FRAME_TERMCAP_P (updating_frame)) |
| 1108 | { |
| 1109 | (*delete_glyphs_hook) (n); |
| 1110 | return; |
| 1111 | } |
| 1112 | |
| 1113 | if (delete_in_insert_mode) |
| 1114 | { |
| 1115 | turn_on_insert (); |
| 1116 | } |
| 1117 | else |
| 1118 | { |
| 1119 | turn_off_insert (); |
| 1120 | OUTPUT_IF (TS_delete_mode); |
| 1121 | } |
| 1122 | |
| 1123 | if (TS_del_multi_chars) |
| 1124 | { |
| 1125 | buf = tparam (TS_del_multi_chars, 0, 0, n); |
| 1126 | OUTPUT1 (buf); |
| 1127 | xfree (buf); |
| 1128 | } |
| 1129 | else |
| 1130 | for (i = 0; i < n; i++) |
| 1131 | OUTPUT1 (TS_del_char); |
| 1132 | if (!delete_in_insert_mode) |
| 1133 | OUTPUT_IF (TS_end_delete_mode); |
| 1134 | } |
| 1135 | \f |
| 1136 | /* Insert N lines at vpos VPOS. If N is negative, delete -N lines. */ |
| 1137 | |
| 1138 | void |
| 1139 | ins_del_lines (vpos, n) |
| 1140 | int vpos, n; |
| 1141 | { |
| 1142 | char *multi = n > 0 ? TS_ins_multi_lines : TS_del_multi_lines; |
| 1143 | char *single = n > 0 ? TS_ins_line : TS_del_line; |
| 1144 | char *scroll = n > 0 ? TS_rev_scroll : TS_fwd_scroll; |
| 1145 | struct frame *sf; |
| 1146 | |
| 1147 | register int i = n > 0 ? n : -n; |
| 1148 | register char *buf; |
| 1149 | |
| 1150 | if (ins_del_lines_hook && ! FRAME_TERMCAP_P (updating_frame)) |
| 1151 | { |
| 1152 | (*ins_del_lines_hook) (vpos, n); |
| 1153 | return; |
| 1154 | } |
| 1155 | |
| 1156 | sf = XFRAME (selected_frame); |
| 1157 | |
| 1158 | /* If the lines below the insertion are being pushed |
| 1159 | into the end of the window, this is the same as clearing; |
| 1160 | and we know the lines are already clear, since the matching |
| 1161 | deletion has already been done. So can ignore this. */ |
| 1162 | /* If the lines below the deletion are blank lines coming |
| 1163 | out of the end of the window, don't bother, |
| 1164 | as there will be a matching inslines later that will flush them. */ |
| 1165 | if (scroll_region_ok && vpos + i >= specified_window) |
| 1166 | return; |
| 1167 | if (!memory_below_frame && vpos + i >= FRAME_LINES (sf)) |
| 1168 | return; |
| 1169 | |
| 1170 | if (multi) |
| 1171 | { |
| 1172 | raw_cursor_to (vpos, 0); |
| 1173 | background_highlight (); |
| 1174 | buf = tparam (multi, 0, 0, i); |
| 1175 | OUTPUT (buf); |
| 1176 | xfree (buf); |
| 1177 | } |
| 1178 | else if (single) |
| 1179 | { |
| 1180 | raw_cursor_to (vpos, 0); |
| 1181 | background_highlight (); |
| 1182 | while (--i >= 0) |
| 1183 | OUTPUT (single); |
| 1184 | if (TF_teleray) |
| 1185 | curX = 0; |
| 1186 | } |
| 1187 | else |
| 1188 | { |
| 1189 | set_scroll_region (vpos, specified_window); |
| 1190 | if (n < 0) |
| 1191 | raw_cursor_to (specified_window - 1, 0); |
| 1192 | else |
| 1193 | raw_cursor_to (vpos, 0); |
| 1194 | background_highlight (); |
| 1195 | while (--i >= 0) |
| 1196 | OUTPUTL (scroll, specified_window - vpos); |
| 1197 | set_scroll_region (0, specified_window); |
| 1198 | } |
| 1199 | |
| 1200 | if (!scroll_region_ok && memory_below_frame && n < 0) |
| 1201 | { |
| 1202 | cursor_to (FRAME_LINES (sf) + n, 0); |
| 1203 | clear_to_end (); |
| 1204 | } |
| 1205 | } |
| 1206 | \f |
| 1207 | /* Compute cost of sending "str", in characters, |
| 1208 | not counting any line-dependent padding. */ |
| 1209 | |
| 1210 | int |
| 1211 | string_cost (str) |
| 1212 | char *str; |
| 1213 | { |
| 1214 | cost = 0; |
| 1215 | if (str) |
| 1216 | tputs (str, 0, evalcost); |
| 1217 | return cost; |
| 1218 | } |
| 1219 | |
| 1220 | /* Compute cost of sending "str", in characters, |
| 1221 | counting any line-dependent padding at one line. */ |
| 1222 | |
| 1223 | static int |
| 1224 | string_cost_one_line (str) |
| 1225 | char *str; |
| 1226 | { |
| 1227 | cost = 0; |
| 1228 | if (str) |
| 1229 | tputs (str, 1, evalcost); |
| 1230 | return cost; |
| 1231 | } |
| 1232 | |
| 1233 | /* Compute per line amount of line-dependent padding, |
| 1234 | in tenths of characters. */ |
| 1235 | |
| 1236 | int |
| 1237 | per_line_cost (str) |
| 1238 | register char *str; |
| 1239 | { |
| 1240 | cost = 0; |
| 1241 | if (str) |
| 1242 | tputs (str, 0, evalcost); |
| 1243 | cost = - cost; |
| 1244 | if (str) |
| 1245 | tputs (str, 10, evalcost); |
| 1246 | return cost; |
| 1247 | } |
| 1248 | |
| 1249 | #ifndef old |
| 1250 | /* char_ins_del_cost[n] is cost of inserting N characters. |
| 1251 | char_ins_del_cost[-n] is cost of deleting N characters. |
| 1252 | The length of this vector is based on max_frame_cols. */ |
| 1253 | |
| 1254 | int *char_ins_del_vector; |
| 1255 | |
| 1256 | #define char_ins_del_cost(f) (&char_ins_del_vector[FRAME_COLS ((f))]) |
| 1257 | #endif |
| 1258 | |
| 1259 | /* ARGSUSED */ |
| 1260 | static void |
| 1261 | calculate_ins_del_char_costs (frame) |
| 1262 | FRAME_PTR frame; |
| 1263 | { |
| 1264 | int ins_startup_cost, del_startup_cost; |
| 1265 | int ins_cost_per_char, del_cost_per_char; |
| 1266 | register int i; |
| 1267 | register int *p; |
| 1268 | |
| 1269 | if (TS_ins_multi_chars) |
| 1270 | { |
| 1271 | ins_cost_per_char = 0; |
| 1272 | ins_startup_cost = string_cost_one_line (TS_ins_multi_chars); |
| 1273 | } |
| 1274 | else if (TS_ins_char || TS_pad_inserted_char |
| 1275 | || (TS_insert_mode && TS_end_insert_mode)) |
| 1276 | { |
| 1277 | ins_startup_cost = (30 * (string_cost (TS_insert_mode) |
| 1278 | + string_cost (TS_end_insert_mode))) / 100; |
| 1279 | ins_cost_per_char = (string_cost_one_line (TS_ins_char) |
| 1280 | + string_cost_one_line (TS_pad_inserted_char)); |
| 1281 | } |
| 1282 | else |
| 1283 | { |
| 1284 | ins_startup_cost = 9999; |
| 1285 | ins_cost_per_char = 0; |
| 1286 | } |
| 1287 | |
| 1288 | if (TS_del_multi_chars) |
| 1289 | { |
| 1290 | del_cost_per_char = 0; |
| 1291 | del_startup_cost = string_cost_one_line (TS_del_multi_chars); |
| 1292 | } |
| 1293 | else if (TS_del_char) |
| 1294 | { |
| 1295 | del_startup_cost = (string_cost (TS_delete_mode) |
| 1296 | + string_cost (TS_end_delete_mode)); |
| 1297 | if (delete_in_insert_mode) |
| 1298 | del_startup_cost /= 2; |
| 1299 | del_cost_per_char = string_cost_one_line (TS_del_char); |
| 1300 | } |
| 1301 | else |
| 1302 | { |
| 1303 | del_startup_cost = 9999; |
| 1304 | del_cost_per_char = 0; |
| 1305 | } |
| 1306 | |
| 1307 | /* Delete costs are at negative offsets */ |
| 1308 | p = &char_ins_del_cost (frame)[0]; |
| 1309 | for (i = FRAME_COLS (frame); --i >= 0;) |
| 1310 | *--p = (del_startup_cost += del_cost_per_char); |
| 1311 | |
| 1312 | /* Doing nothing is free */ |
| 1313 | p = &char_ins_del_cost (frame)[0]; |
| 1314 | *p++ = 0; |
| 1315 | |
| 1316 | /* Insert costs are at positive offsets */ |
| 1317 | for (i = FRAME_COLS (frame); --i >= 0;) |
| 1318 | *p++ = (ins_startup_cost += ins_cost_per_char); |
| 1319 | } |
| 1320 | |
| 1321 | void |
| 1322 | calculate_costs (frame) |
| 1323 | FRAME_PTR frame; |
| 1324 | { |
| 1325 | register char *f = (TS_set_scroll_region |
| 1326 | ? TS_set_scroll_region |
| 1327 | : TS_set_scroll_region_1); |
| 1328 | |
| 1329 | FRAME_COST_BAUD_RATE (frame) = baud_rate; |
| 1330 | |
| 1331 | scroll_region_cost = string_cost (f); |
| 1332 | |
| 1333 | /* These variables are only used for terminal stuff. They are allocated |
| 1334 | once for the terminal frame of X-windows emacs, but not used afterwards. |
| 1335 | |
| 1336 | char_ins_del_vector (i.e., char_ins_del_cost) isn't used because |
| 1337 | X turns off char_ins_del_ok. */ |
| 1338 | |
| 1339 | max_frame_lines = max (max_frame_lines, FRAME_LINES (frame)); |
| 1340 | max_frame_cols = max (max_frame_cols, FRAME_COLS (frame)); |
| 1341 | |
| 1342 | costs_set = 1; |
| 1343 | |
| 1344 | if (char_ins_del_vector != 0) |
| 1345 | char_ins_del_vector |
| 1346 | = (int *) xrealloc (char_ins_del_vector, |
| 1347 | (sizeof (int) |
| 1348 | + 2 * max_frame_cols * sizeof (int))); |
| 1349 | else |
| 1350 | char_ins_del_vector |
| 1351 | = (int *) xmalloc (sizeof (int) |
| 1352 | + 2 * max_frame_cols * sizeof (int)); |
| 1353 | |
| 1354 | bzero (char_ins_del_vector, (sizeof (int) |
| 1355 | + 2 * max_frame_cols * sizeof (int))); |
| 1356 | |
| 1357 | if (f && (!TS_ins_line && !TS_del_line)) |
| 1358 | do_line_insertion_deletion_costs (frame, |
| 1359 | TS_rev_scroll, TS_ins_multi_lines, |
| 1360 | TS_fwd_scroll, TS_del_multi_lines, |
| 1361 | f, f, 1); |
| 1362 | else |
| 1363 | do_line_insertion_deletion_costs (frame, |
| 1364 | TS_ins_line, TS_ins_multi_lines, |
| 1365 | TS_del_line, TS_del_multi_lines, |
| 1366 | 0, 0, 1); |
| 1367 | |
| 1368 | calculate_ins_del_char_costs (frame); |
| 1369 | |
| 1370 | /* Don't use TS_repeat if its padding is worse than sending the chars */ |
| 1371 | if (TS_repeat && per_line_cost (TS_repeat) * baud_rate < 9000) |
| 1372 | RPov = string_cost (TS_repeat); |
| 1373 | else |
| 1374 | RPov = FRAME_COLS (frame) * 2; |
| 1375 | |
| 1376 | cmcostinit (); /* set up cursor motion costs */ |
| 1377 | } |
| 1378 | \f |
| 1379 | struct fkey_table { |
| 1380 | char *cap, *name; |
| 1381 | }; |
| 1382 | |
| 1383 | /* Termcap capability names that correspond directly to X keysyms. |
| 1384 | Some of these (marked "terminfo") aren't supplied by old-style |
| 1385 | (Berkeley) termcap entries. They're listed in X keysym order; |
| 1386 | except we put the keypad keys first, so that if they clash with |
| 1387 | other keys (as on the IBM PC keyboard) they get overridden. |
| 1388 | */ |
| 1389 | |
| 1390 | static struct fkey_table keys[] = |
| 1391 | { |
| 1392 | {"kh", "home"}, /* termcap */ |
| 1393 | {"kl", "left"}, /* termcap */ |
| 1394 | {"ku", "up"}, /* termcap */ |
| 1395 | {"kr", "right"}, /* termcap */ |
| 1396 | {"kd", "down"}, /* termcap */ |
| 1397 | {"%8", "prior"}, /* terminfo */ |
| 1398 | {"%5", "next"}, /* terminfo */ |
| 1399 | {"@7", "end"}, /* terminfo */ |
| 1400 | {"@1", "begin"}, /* terminfo */ |
| 1401 | {"*6", "select"}, /* terminfo */ |
| 1402 | {"%9", "print"}, /* terminfo */ |
| 1403 | {"@4", "execute"}, /* terminfo --- actually the `command' key */ |
| 1404 | /* |
| 1405 | * "insert" --- see below |
| 1406 | */ |
| 1407 | {"&8", "undo"}, /* terminfo */ |
| 1408 | {"%0", "redo"}, /* terminfo */ |
| 1409 | {"%7", "menu"}, /* terminfo --- actually the `options' key */ |
| 1410 | {"@0", "find"}, /* terminfo */ |
| 1411 | {"@2", "cancel"}, /* terminfo */ |
| 1412 | {"%1", "help"}, /* terminfo */ |
| 1413 | /* |
| 1414 | * "break" goes here, but can't be reliably intercepted with termcap |
| 1415 | */ |
| 1416 | {"&4", "reset"}, /* terminfo --- actually `restart' */ |
| 1417 | /* |
| 1418 | * "system" and "user" --- no termcaps |
| 1419 | */ |
| 1420 | {"kE", "clearline"}, /* terminfo */ |
| 1421 | {"kA", "insertline"}, /* terminfo */ |
| 1422 | {"kL", "deleteline"}, /* terminfo */ |
| 1423 | {"kI", "insertchar"}, /* terminfo */ |
| 1424 | {"kD", "deletechar"}, /* terminfo */ |
| 1425 | {"kB", "backtab"}, /* terminfo */ |
| 1426 | /* |
| 1427 | * "kp_backtab", "kp-space", "kp-tab" --- no termcaps |
| 1428 | */ |
| 1429 | {"@8", "kp-enter"}, /* terminfo */ |
| 1430 | /* |
| 1431 | * "kp-f1", "kp-f2", "kp-f3" "kp-f4", |
| 1432 | * "kp-multiply", "kp-add", "kp-separator", |
| 1433 | * "kp-subtract", "kp-decimal", "kp-divide", "kp-0"; |
| 1434 | * --- no termcaps for any of these. |
| 1435 | */ |
| 1436 | {"K4", "kp-1"}, /* terminfo */ |
| 1437 | /* |
| 1438 | * "kp-2" --- no termcap |
| 1439 | */ |
| 1440 | {"K5", "kp-3"}, /* terminfo */ |
| 1441 | /* |
| 1442 | * "kp-4" --- no termcap |
| 1443 | */ |
| 1444 | {"K2", "kp-5"}, /* terminfo */ |
| 1445 | /* |
| 1446 | * "kp-6" --- no termcap |
| 1447 | */ |
| 1448 | {"K1", "kp-7"}, /* terminfo */ |
| 1449 | /* |
| 1450 | * "kp-8" --- no termcap |
| 1451 | */ |
| 1452 | {"K3", "kp-9"}, /* terminfo */ |
| 1453 | /* |
| 1454 | * "kp-equal" --- no termcap |
| 1455 | */ |
| 1456 | {"k1", "f1"}, |
| 1457 | {"k2", "f2"}, |
| 1458 | {"k3", "f3"}, |
| 1459 | {"k4", "f4"}, |
| 1460 | {"k5", "f5"}, |
| 1461 | {"k6", "f6"}, |
| 1462 | {"k7", "f7"}, |
| 1463 | {"k8", "f8"}, |
| 1464 | {"k9", "f9"}, |
| 1465 | |
| 1466 | {"&0", "S-cancel"}, /*shifted cancel key*/ |
| 1467 | {"&9", "S-begin"}, /*shifted begin key*/ |
| 1468 | {"*0", "S-find"}, /*shifted find key*/ |
| 1469 | {"*1", "S-execute"}, /*shifted execute? actually shifted command key*/ |
| 1470 | {"*4", "S-delete"}, /*shifted delete-character key*/ |
| 1471 | {"*7", "S-end"}, /*shifted end key*/ |
| 1472 | {"*8", "S-clearline"}, /*shifted clear-to end-of-line key*/ |
| 1473 | {"#1", "S-help"}, /*shifted help key*/ |
| 1474 | {"#2", "S-home"}, /*shifted home key*/ |
| 1475 | {"#3", "S-insert"}, /*shifted insert-character key*/ |
| 1476 | {"#4", "S-left"}, /*shifted left-arrow key*/ |
| 1477 | {"%d", "S-menu"}, /*shifted menu? actually shifted options key*/ |
| 1478 | {"%c", "S-next"}, /*shifted next key*/ |
| 1479 | {"%e", "S-prior"}, /*shifted previous key*/ |
| 1480 | {"%f", "S-print"}, /*shifted print key*/ |
| 1481 | {"%g", "S-redo"}, /*shifted redo key*/ |
| 1482 | {"%i", "S-right"}, /*shifted right-arrow key*/ |
| 1483 | {"!3", "S-undo"} /*shifted undo key*/ |
| 1484 | }; |
| 1485 | |
| 1486 | static char **term_get_fkeys_arg; |
| 1487 | static Lisp_Object term_get_fkeys_1 (); |
| 1488 | |
| 1489 | /* Find the escape codes sent by the function keys for Vfunction_key_map. |
| 1490 | This function scans the termcap function key sequence entries, and |
| 1491 | adds entries to Vfunction_key_map for each function key it finds. */ |
| 1492 | |
| 1493 | void |
| 1494 | term_get_fkeys (address) |
| 1495 | char **address; |
| 1496 | { |
| 1497 | /* We run the body of the function (term_get_fkeys_1) and ignore all Lisp |
| 1498 | errors during the call. The only errors should be from Fdefine_key |
| 1499 | when given a key sequence containing an invalid prefix key. If the |
| 1500 | termcap defines function keys which use a prefix that is already bound |
| 1501 | to a command by the default bindings, we should silently ignore that |
| 1502 | function key specification, rather than giving the user an error and |
| 1503 | refusing to run at all on such a terminal. */ |
| 1504 | |
| 1505 | extern Lisp_Object Fidentity (); |
| 1506 | term_get_fkeys_arg = address; |
| 1507 | internal_condition_case (term_get_fkeys_1, Qerror, Fidentity); |
| 1508 | } |
| 1509 | |
| 1510 | static Lisp_Object |
| 1511 | term_get_fkeys_1 () |
| 1512 | { |
| 1513 | int i; |
| 1514 | |
| 1515 | char **address = term_get_fkeys_arg; |
| 1516 | |
| 1517 | /* This can happen if CANNOT_DUMP or with strange options. */ |
| 1518 | if (!initialized) |
| 1519 | Vfunction_key_map = Fmake_sparse_keymap (Qnil); |
| 1520 | |
| 1521 | for (i = 0; i < (sizeof (keys)/sizeof (keys[0])); i++) |
| 1522 | { |
| 1523 | char *sequence = tgetstr (keys[i].cap, address); |
| 1524 | if (sequence) |
| 1525 | Fdefine_key (Vfunction_key_map, build_string (sequence), |
| 1526 | Fmake_vector (make_number (1), |
| 1527 | intern (keys[i].name))); |
| 1528 | } |
| 1529 | |
| 1530 | /* The uses of the "k0" capability are inconsistent; sometimes it |
| 1531 | describes F10, whereas othertimes it describes F0 and "k;" describes F10. |
| 1532 | We will attempt to politely accommodate both systems by testing for |
| 1533 | "k;", and if it is present, assuming that "k0" denotes F0, otherwise F10. |
| 1534 | */ |
| 1535 | { |
| 1536 | char *k_semi = tgetstr ("k;", address); |
| 1537 | char *k0 = tgetstr ("k0", address); |
| 1538 | char *k0_name = "f10"; |
| 1539 | |
| 1540 | if (k_semi) |
| 1541 | { |
| 1542 | if (k0) |
| 1543 | /* Define f0 first, so that f10 takes precedence in case the |
| 1544 | key sequences happens to be the same. */ |
| 1545 | Fdefine_key (Vfunction_key_map, build_string (k0), |
| 1546 | Fmake_vector (make_number (1), intern ("f0"))); |
| 1547 | Fdefine_key (Vfunction_key_map, build_string (k_semi), |
| 1548 | Fmake_vector (make_number (1), intern ("f10"))); |
| 1549 | } |
| 1550 | else if (k0) |
| 1551 | Fdefine_key (Vfunction_key_map, build_string (k0), |
| 1552 | Fmake_vector (make_number (1), intern (k0_name))); |
| 1553 | } |
| 1554 | |
| 1555 | /* Set up cookies for numbered function keys above f10. */ |
| 1556 | { |
| 1557 | char fcap[3], fkey[4]; |
| 1558 | |
| 1559 | fcap[0] = 'F'; fcap[2] = '\0'; |
| 1560 | for (i = 11; i < 64; i++) |
| 1561 | { |
| 1562 | if (i <= 19) |
| 1563 | fcap[1] = '1' + i - 11; |
| 1564 | else if (i <= 45) |
| 1565 | fcap[1] = 'A' + i - 20; |
| 1566 | else |
| 1567 | fcap[1] = 'a' + i - 46; |
| 1568 | |
| 1569 | { |
| 1570 | char *sequence = tgetstr (fcap, address); |
| 1571 | if (sequence) |
| 1572 | { |
| 1573 | sprintf (fkey, "f%d", i); |
| 1574 | Fdefine_key (Vfunction_key_map, build_string (sequence), |
| 1575 | Fmake_vector (make_number (1), |
| 1576 | intern (fkey))); |
| 1577 | } |
| 1578 | } |
| 1579 | } |
| 1580 | } |
| 1581 | |
| 1582 | /* |
| 1583 | * Various mappings to try and get a better fit. |
| 1584 | */ |
| 1585 | { |
| 1586 | #define CONDITIONAL_REASSIGN(cap1, cap2, sym) \ |
| 1587 | if (!tgetstr (cap1, address)) \ |
| 1588 | { \ |
| 1589 | char *sequence = tgetstr (cap2, address); \ |
| 1590 | if (sequence) \ |
| 1591 | Fdefine_key (Vfunction_key_map, build_string (sequence), \ |
| 1592 | Fmake_vector (make_number (1), \ |
| 1593 | intern (sym))); \ |
| 1594 | } |
| 1595 | |
| 1596 | /* if there's no key_next keycap, map key_npage to `next' keysym */ |
| 1597 | CONDITIONAL_REASSIGN ("%5", "kN", "next"); |
| 1598 | /* if there's no key_prev keycap, map key_ppage to `previous' keysym */ |
| 1599 | CONDITIONAL_REASSIGN ("%8", "kP", "prior"); |
| 1600 | /* if there's no key_dc keycap, map key_ic to `insert' keysym */ |
| 1601 | CONDITIONAL_REASSIGN ("kD", "kI", "insert"); |
| 1602 | /* if there's no key_end keycap, map key_ll to 'end' keysym */ |
| 1603 | CONDITIONAL_REASSIGN ("@7", "kH", "end"); |
| 1604 | |
| 1605 | /* IBM has their own non-standard dialect of terminfo. |
| 1606 | If the standard name isn't found, try the IBM name. */ |
| 1607 | CONDITIONAL_REASSIGN ("kB", "KO", "backtab"); |
| 1608 | CONDITIONAL_REASSIGN ("@4", "kJ", "execute"); /* actually "action" */ |
| 1609 | CONDITIONAL_REASSIGN ("@4", "kc", "execute"); /* actually "command" */ |
| 1610 | CONDITIONAL_REASSIGN ("%7", "ki", "menu"); |
| 1611 | CONDITIONAL_REASSIGN ("@7", "kw", "end"); |
| 1612 | CONDITIONAL_REASSIGN ("F1", "k<", "f11"); |
| 1613 | CONDITIONAL_REASSIGN ("F2", "k>", "f12"); |
| 1614 | CONDITIONAL_REASSIGN ("%1", "kq", "help"); |
| 1615 | CONDITIONAL_REASSIGN ("*6", "kU", "select"); |
| 1616 | #undef CONDITIONAL_REASSIGN |
| 1617 | } |
| 1618 | |
| 1619 | return Qnil; |
| 1620 | } |
| 1621 | |
| 1622 | \f |
| 1623 | /*********************************************************************** |
| 1624 | Character Display Information |
| 1625 | ***********************************************************************/ |
| 1626 | |
| 1627 | static void append_glyph P_ ((struct it *)); |
| 1628 | static void produce_stretch_glyph P_ ((struct it *)); |
| 1629 | |
| 1630 | |
| 1631 | /* Append glyphs to IT's glyph_row. Called from produce_glyphs for |
| 1632 | terminal frames if IT->glyph_row != NULL. IT->c is the character |
| 1633 | for which to produce glyphs; IT->face_id contains the character's |
| 1634 | face. Padding glyphs are appended if IT->c has a IT->pixel_width > |
| 1635 | 1. */ |
| 1636 | |
| 1637 | static void |
| 1638 | append_glyph (it) |
| 1639 | struct it *it; |
| 1640 | { |
| 1641 | struct glyph *glyph, *end; |
| 1642 | int i; |
| 1643 | |
| 1644 | xassert (it->glyph_row); |
| 1645 | glyph = (it->glyph_row->glyphs[it->area] |
| 1646 | + it->glyph_row->used[it->area]); |
| 1647 | end = it->glyph_row->glyphs[1 + it->area]; |
| 1648 | |
| 1649 | for (i = 0; |
| 1650 | i < it->pixel_width && glyph < end; |
| 1651 | ++i) |
| 1652 | { |
| 1653 | glyph->type = CHAR_GLYPH; |
| 1654 | glyph->pixel_width = 1; |
| 1655 | glyph->u.ch = it->c; |
| 1656 | glyph->face_id = it->face_id; |
| 1657 | glyph->padding_p = i > 0; |
| 1658 | glyph->charpos = CHARPOS (it->position); |
| 1659 | glyph->object = it->object; |
| 1660 | |
| 1661 | ++it->glyph_row->used[it->area]; |
| 1662 | ++glyph; |
| 1663 | } |
| 1664 | } |
| 1665 | |
| 1666 | |
| 1667 | /* Produce glyphs for the display element described by IT. *IT |
| 1668 | specifies what we want to produce a glyph for (character, image, ...), |
| 1669 | and where in the glyph matrix we currently are (glyph row and hpos). |
| 1670 | produce_glyphs fills in output fields of *IT with information such as the |
| 1671 | pixel width and height of a character, and maybe output actual glyphs at |
| 1672 | the same time if IT->glyph_row is non-null. See the explanation of |
| 1673 | struct display_iterator in dispextern.h for an overview. |
| 1674 | |
| 1675 | produce_glyphs also stores the result of glyph width, ascent |
| 1676 | etc. computations in *IT. |
| 1677 | |
| 1678 | IT->glyph_row may be null, in which case produce_glyphs does not |
| 1679 | actually fill in the glyphs. This is used in the move_* functions |
| 1680 | in xdisp.c for text width and height computations. |
| 1681 | |
| 1682 | Callers usually don't call produce_glyphs directly; |
| 1683 | instead they use the macro PRODUCE_GLYPHS. */ |
| 1684 | |
| 1685 | void |
| 1686 | produce_glyphs (it) |
| 1687 | struct it *it; |
| 1688 | { |
| 1689 | /* If a hook is installed, let it do the work. */ |
| 1690 | xassert (it->what == IT_CHARACTER |
| 1691 | || it->what == IT_COMPOSITION |
| 1692 | || it->what == IT_STRETCH); |
| 1693 | |
| 1694 | if (it->what == IT_STRETCH) |
| 1695 | { |
| 1696 | produce_stretch_glyph (it); |
| 1697 | goto done; |
| 1698 | } |
| 1699 | |
| 1700 | /* Nothing but characters are supported on terminal frames. For a |
| 1701 | composition sequence, it->c is the first character of the |
| 1702 | sequence. */ |
| 1703 | xassert (it->what == IT_CHARACTER |
| 1704 | || it->what == IT_COMPOSITION); |
| 1705 | |
| 1706 | if (it->c >= 040 && it->c < 0177) |
| 1707 | { |
| 1708 | it->pixel_width = it->nglyphs = 1; |
| 1709 | if (it->glyph_row) |
| 1710 | append_glyph (it); |
| 1711 | } |
| 1712 | else if (it->c == '\n') |
| 1713 | it->pixel_width = it->nglyphs = 0; |
| 1714 | else if (it->c == '\t') |
| 1715 | { |
| 1716 | int absolute_x = (it->current_x |
| 1717 | + it->continuation_lines_width); |
| 1718 | int next_tab_x |
| 1719 | = (((1 + absolute_x + it->tab_width - 1) |
| 1720 | / it->tab_width) |
| 1721 | * it->tab_width); |
| 1722 | int nspaces; |
| 1723 | |
| 1724 | /* If part of the TAB has been displayed on the previous line |
| 1725 | which is continued now, continuation_lines_width will have |
| 1726 | been incremented already by the part that fitted on the |
| 1727 | continued line. So, we will get the right number of spaces |
| 1728 | here. */ |
| 1729 | nspaces = next_tab_x - absolute_x; |
| 1730 | |
| 1731 | if (it->glyph_row) |
| 1732 | { |
| 1733 | int n = nspaces; |
| 1734 | |
| 1735 | it->c = ' '; |
| 1736 | it->pixel_width = it->len = 1; |
| 1737 | |
| 1738 | while (n--) |
| 1739 | append_glyph (it); |
| 1740 | |
| 1741 | it->c = '\t'; |
| 1742 | } |
| 1743 | |
| 1744 | it->pixel_width = nspaces; |
| 1745 | it->nglyphs = nspaces; |
| 1746 | } |
| 1747 | else if (SINGLE_BYTE_CHAR_P (it->c)) |
| 1748 | { |
| 1749 | /* Coming here means that it->c is from display table, thus we |
| 1750 | must send the code as is to the terminal. Although there's |
| 1751 | no way to know how many columns it occupies on a screen, it |
| 1752 | is a good assumption that a single byte code has 1-column |
| 1753 | width. */ |
| 1754 | it->pixel_width = it->nglyphs = 1; |
| 1755 | if (it->glyph_row) |
| 1756 | append_glyph (it); |
| 1757 | } |
| 1758 | else |
| 1759 | { |
| 1760 | /* A multi-byte character. The display width is fixed for all |
| 1761 | characters of the set. Some of the glyphs may have to be |
| 1762 | ignored because they are already displayed in a continued |
| 1763 | line. */ |
| 1764 | int charset = CHAR_CHARSET (it->c); |
| 1765 | |
| 1766 | it->pixel_width = CHARSET_WIDTH (charset); |
| 1767 | it->nglyphs = it->pixel_width; |
| 1768 | |
| 1769 | if (it->glyph_row) |
| 1770 | append_glyph (it); |
| 1771 | } |
| 1772 | |
| 1773 | done: |
| 1774 | /* Advance current_x by the pixel width as a convenience for |
| 1775 | the caller. */ |
| 1776 | if (it->area == TEXT_AREA) |
| 1777 | it->current_x += it->pixel_width; |
| 1778 | it->ascent = it->max_ascent = it->phys_ascent = it->max_phys_ascent = 0; |
| 1779 | it->descent = it->max_descent = it->phys_descent = it->max_phys_descent = 1; |
| 1780 | } |
| 1781 | |
| 1782 | |
| 1783 | /* Produce a stretch glyph for iterator IT. IT->object is the value |
| 1784 | of the glyph property displayed. The value must be a list |
| 1785 | `(space KEYWORD VALUE ...)' with the following KEYWORD/VALUE pairs |
| 1786 | being recognized: |
| 1787 | |
| 1788 | 1. `:width WIDTH' specifies that the space should be WIDTH * |
| 1789 | canonical char width wide. WIDTH may be an integer or floating |
| 1790 | point number. |
| 1791 | |
| 1792 | 2. `:align-to HPOS' specifies that the space should be wide enough |
| 1793 | to reach HPOS, a value in canonical character units. */ |
| 1794 | |
| 1795 | static void |
| 1796 | produce_stretch_glyph (it) |
| 1797 | struct it *it; |
| 1798 | { |
| 1799 | /* (space :width WIDTH ...) */ |
| 1800 | Lisp_Object prop, plist; |
| 1801 | int width = 0, align_to = -1; |
| 1802 | int zero_width_ok_p = 0; |
| 1803 | double tem; |
| 1804 | |
| 1805 | /* List should start with `space'. */ |
| 1806 | xassert (CONSP (it->object) && EQ (XCAR (it->object), Qspace)); |
| 1807 | plist = XCDR (it->object); |
| 1808 | |
| 1809 | /* Compute the width of the stretch. */ |
| 1810 | if ((prop = Fplist_get (plist, QCwidth), !NILP (prop)) |
| 1811 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, 0)) |
| 1812 | { |
| 1813 | /* Absolute width `:width WIDTH' specified and valid. */ |
| 1814 | zero_width_ok_p = 1; |
| 1815 | width = (int)(tem + 0.5); |
| 1816 | } |
| 1817 | else if ((prop = Fplist_get (plist, QCalign_to), !NILP (prop)) |
| 1818 | && calc_pixel_width_or_height (&tem, it, prop, 0, 1, &align_to)) |
| 1819 | { |
| 1820 | if (it->glyph_row == NULL || !it->glyph_row->mode_line_p) |
| 1821 | align_to = (align_to < 0 |
| 1822 | ? 0 |
| 1823 | : align_to - window_box_left_offset (it->w, TEXT_AREA)); |
| 1824 | else if (align_to < 0) |
| 1825 | align_to = window_box_left_offset (it->w, TEXT_AREA); |
| 1826 | width = max (0, (int)(tem + 0.5) + align_to - it->current_x); |
| 1827 | zero_width_ok_p = 1; |
| 1828 | } |
| 1829 | else |
| 1830 | /* Nothing specified -> width defaults to canonical char width. */ |
| 1831 | width = FRAME_COLUMN_WIDTH (it->f); |
| 1832 | |
| 1833 | if (width <= 0 && (width < 0 || !zero_width_ok_p)) |
| 1834 | width = 1; |
| 1835 | |
| 1836 | if (width > 0 && it->glyph_row) |
| 1837 | { |
| 1838 | Lisp_Object o_object = it->object; |
| 1839 | Lisp_Object object = it->stack[it->sp - 1].string; |
| 1840 | int n = width; |
| 1841 | int c = it->c; |
| 1842 | |
| 1843 | if (!STRINGP (object)) |
| 1844 | object = it->w->buffer; |
| 1845 | it->object = object; |
| 1846 | it->c = ' '; |
| 1847 | it->pixel_width = it->len = 1; |
| 1848 | while (n--) |
| 1849 | append_glyph (it); |
| 1850 | it->object = o_object; |
| 1851 | it->c = c; |
| 1852 | } |
| 1853 | it->pixel_width = width; |
| 1854 | it->nglyphs = width; |
| 1855 | } |
| 1856 | |
| 1857 | |
| 1858 | /* Get information about special display element WHAT in an |
| 1859 | environment described by IT. WHAT is one of IT_TRUNCATION or |
| 1860 | IT_CONTINUATION. Maybe produce glyphs for WHAT if IT has a |
| 1861 | non-null glyph_row member. This function ensures that fields like |
| 1862 | face_id, c, len of IT are left untouched. */ |
| 1863 | |
| 1864 | void |
| 1865 | produce_special_glyphs (it, what) |
| 1866 | struct it *it; |
| 1867 | enum display_element_type what; |
| 1868 | { |
| 1869 | struct it temp_it; |
| 1870 | GLYPH glyph; |
| 1871 | |
| 1872 | temp_it = *it; |
| 1873 | temp_it.dp = NULL; |
| 1874 | temp_it.what = IT_CHARACTER; |
| 1875 | temp_it.len = 1; |
| 1876 | temp_it.object = make_number (0); |
| 1877 | bzero (&temp_it.current, sizeof temp_it.current); |
| 1878 | |
| 1879 | if (what == IT_CONTINUATION) |
| 1880 | { |
| 1881 | /* Continuation glyph. */ |
| 1882 | if (it->dp |
| 1883 | && INTEGERP (DISP_CONTINUE_GLYPH (it->dp)) |
| 1884 | && GLYPH_CHAR_VALID_P (XINT (DISP_CONTINUE_GLYPH (it->dp)))) |
| 1885 | { |
| 1886 | glyph = XINT (DISP_CONTINUE_GLYPH (it->dp)); |
| 1887 | glyph = spec_glyph_lookup_face (XWINDOW (it->window), glyph); |
| 1888 | } |
| 1889 | else |
| 1890 | glyph = '\\'; |
| 1891 | } |
| 1892 | else if (what == IT_TRUNCATION) |
| 1893 | { |
| 1894 | /* Truncation glyph. */ |
| 1895 | if (it->dp |
| 1896 | && INTEGERP (DISP_TRUNC_GLYPH (it->dp)) |
| 1897 | && GLYPH_CHAR_VALID_P (XINT (DISP_TRUNC_GLYPH (it->dp)))) |
| 1898 | { |
| 1899 | glyph = XINT (DISP_TRUNC_GLYPH (it->dp)); |
| 1900 | glyph = spec_glyph_lookup_face (XWINDOW (it->window), glyph); |
| 1901 | } |
| 1902 | else |
| 1903 | glyph = '$'; |
| 1904 | } |
| 1905 | else |
| 1906 | abort (); |
| 1907 | |
| 1908 | temp_it.c = FAST_GLYPH_CHAR (glyph); |
| 1909 | temp_it.face_id = FAST_GLYPH_FACE (glyph); |
| 1910 | temp_it.len = CHAR_BYTES (temp_it.c); |
| 1911 | |
| 1912 | produce_glyphs (&temp_it); |
| 1913 | it->pixel_width = temp_it.pixel_width; |
| 1914 | it->nglyphs = temp_it.pixel_width; |
| 1915 | } |
| 1916 | |
| 1917 | |
| 1918 | \f |
| 1919 | /*********************************************************************** |
| 1920 | Faces |
| 1921 | ***********************************************************************/ |
| 1922 | |
| 1923 | /* Value is non-zero if attribute ATTR may be used. ATTR should be |
| 1924 | one of the enumerators from enum no_color_bit, or a bit set built |
| 1925 | from them. Some display attributes may not be used together with |
| 1926 | color; the termcap capability `NC' specifies which ones. */ |
| 1927 | |
| 1928 | #define MAY_USE_WITH_COLORS_P(ATTR) \ |
| 1929 | (TN_max_colors > 0 \ |
| 1930 | ? (TN_no_color_video & (ATTR)) == 0 \ |
| 1931 | : 1) |
| 1932 | |
| 1933 | /* Turn appearances of face FACE_ID on tty frame F on. |
| 1934 | FACE_ID is a realized face ID number, in the face cache. */ |
| 1935 | |
| 1936 | static void |
| 1937 | turn_on_face (f, face_id) |
| 1938 | struct frame *f; |
| 1939 | int face_id; |
| 1940 | { |
| 1941 | struct face *face = FACE_FROM_ID (f, face_id); |
| 1942 | long fg = face->foreground; |
| 1943 | long bg = face->background; |
| 1944 | |
| 1945 | /* Do this first because TS_end_standout_mode may be the same |
| 1946 | as TS_exit_attribute_mode, which turns all appearances off. */ |
| 1947 | if (MAY_USE_WITH_COLORS_P (NC_REVERSE)) |
| 1948 | { |
| 1949 | if (TN_max_colors > 0) |
| 1950 | { |
| 1951 | if (fg >= 0 && bg >= 0) |
| 1952 | { |
| 1953 | /* If the terminal supports colors, we can set them |
| 1954 | below without using reverse video. The face's fg |
| 1955 | and bg colors are set as they should appear on |
| 1956 | the screen, i.e. they take the inverse-video'ness |
| 1957 | of the face already into account. */ |
| 1958 | } |
| 1959 | else if (inverse_video) |
| 1960 | { |
| 1961 | if (fg == FACE_TTY_DEFAULT_FG_COLOR |
| 1962 | || bg == FACE_TTY_DEFAULT_BG_COLOR) |
| 1963 | toggle_highlight (); |
| 1964 | } |
| 1965 | else |
| 1966 | { |
| 1967 | if (fg == FACE_TTY_DEFAULT_BG_COLOR |
| 1968 | || bg == FACE_TTY_DEFAULT_FG_COLOR) |
| 1969 | toggle_highlight (); |
| 1970 | } |
| 1971 | } |
| 1972 | else |
| 1973 | { |
| 1974 | /* If we can't display colors, use reverse video |
| 1975 | if the face specifies that. */ |
| 1976 | if (inverse_video) |
| 1977 | { |
| 1978 | if (fg == FACE_TTY_DEFAULT_FG_COLOR |
| 1979 | || bg == FACE_TTY_DEFAULT_BG_COLOR) |
| 1980 | toggle_highlight (); |
| 1981 | } |
| 1982 | else |
| 1983 | { |
| 1984 | if (fg == FACE_TTY_DEFAULT_BG_COLOR |
| 1985 | || bg == FACE_TTY_DEFAULT_FG_COLOR) |
| 1986 | toggle_highlight (); |
| 1987 | } |
| 1988 | } |
| 1989 | } |
| 1990 | |
| 1991 | if (face->tty_bold_p) |
| 1992 | { |
| 1993 | if (MAY_USE_WITH_COLORS_P (NC_BOLD)) |
| 1994 | OUTPUT1_IF (TS_enter_bold_mode); |
| 1995 | } |
| 1996 | else if (face->tty_dim_p) |
| 1997 | if (MAY_USE_WITH_COLORS_P (NC_DIM)) |
| 1998 | OUTPUT1_IF (TS_enter_dim_mode); |
| 1999 | |
| 2000 | /* Alternate charset and blinking not yet used. */ |
| 2001 | if (face->tty_alt_charset_p |
| 2002 | && MAY_USE_WITH_COLORS_P (NC_ALT_CHARSET)) |
| 2003 | OUTPUT1_IF (TS_enter_alt_charset_mode); |
| 2004 | |
| 2005 | if (face->tty_blinking_p |
| 2006 | && MAY_USE_WITH_COLORS_P (NC_BLINK)) |
| 2007 | OUTPUT1_IF (TS_enter_blink_mode); |
| 2008 | |
| 2009 | if (face->tty_underline_p && MAY_USE_WITH_COLORS_P (NC_UNDERLINE)) |
| 2010 | OUTPUT1_IF (TS_enter_underline_mode); |
| 2011 | |
| 2012 | if (TN_max_colors > 0) |
| 2013 | { |
| 2014 | char *ts, *p; |
| 2015 | |
| 2016 | ts = standout_mode ? TS_set_background : TS_set_foreground; |
| 2017 | if (fg >= 0 && ts) |
| 2018 | { |
| 2019 | p = tparam (ts, NULL, 0, (int) fg); |
| 2020 | OUTPUT (p); |
| 2021 | xfree (p); |
| 2022 | } |
| 2023 | |
| 2024 | ts = standout_mode ? TS_set_foreground : TS_set_background; |
| 2025 | if (bg >= 0 && ts) |
| 2026 | { |
| 2027 | p = tparam (ts, NULL, 0, (int) bg); |
| 2028 | OUTPUT (p); |
| 2029 | xfree (p); |
| 2030 | } |
| 2031 | } |
| 2032 | } |
| 2033 | |
| 2034 | |
| 2035 | /* Turn off appearances of face FACE_ID on tty frame F. */ |
| 2036 | |
| 2037 | static void |
| 2038 | turn_off_face (f, face_id) |
| 2039 | struct frame *f; |
| 2040 | int face_id; |
| 2041 | { |
| 2042 | struct face *face = FACE_FROM_ID (f, face_id); |
| 2043 | |
| 2044 | xassert (face != NULL); |
| 2045 | |
| 2046 | if (TS_exit_attribute_mode) |
| 2047 | { |
| 2048 | /* Capability "me" will turn off appearance modes double-bright, |
| 2049 | half-bright, reverse-video, standout, underline. It may or |
| 2050 | may not turn off alt-char-mode. */ |
| 2051 | if (face->tty_bold_p |
| 2052 | || face->tty_dim_p |
| 2053 | || face->tty_reverse_p |
| 2054 | || face->tty_alt_charset_p |
| 2055 | || face->tty_blinking_p |
| 2056 | || face->tty_underline_p) |
| 2057 | { |
| 2058 | OUTPUT1_IF (TS_exit_attribute_mode); |
| 2059 | if (strcmp (TS_exit_attribute_mode, TS_end_standout_mode) == 0) |
| 2060 | standout_mode = 0; |
| 2061 | } |
| 2062 | |
| 2063 | if (face->tty_alt_charset_p) |
| 2064 | OUTPUT_IF (TS_exit_alt_charset_mode); |
| 2065 | } |
| 2066 | else |
| 2067 | { |
| 2068 | /* If we don't have "me" we can only have those appearances |
| 2069 | that have exit sequences defined. */ |
| 2070 | if (face->tty_alt_charset_p) |
| 2071 | OUTPUT_IF (TS_exit_alt_charset_mode); |
| 2072 | |
| 2073 | if (face->tty_underline_p) |
| 2074 | OUTPUT_IF (TS_exit_underline_mode); |
| 2075 | } |
| 2076 | |
| 2077 | /* Switch back to default colors. */ |
| 2078 | if (TN_max_colors > 0 |
| 2079 | && ((face->foreground != FACE_TTY_DEFAULT_COLOR |
| 2080 | && face->foreground != FACE_TTY_DEFAULT_FG_COLOR) |
| 2081 | || (face->background != FACE_TTY_DEFAULT_COLOR |
| 2082 | && face->background != FACE_TTY_DEFAULT_BG_COLOR))) |
| 2083 | OUTPUT1_IF (TS_orig_pair); |
| 2084 | } |
| 2085 | |
| 2086 | |
| 2087 | /* Return non-zero if the terminal on frame F supports all of the |
| 2088 | capabilities in CAPS simultaneously, with foreground and background |
| 2089 | colors FG and BG. */ |
| 2090 | |
| 2091 | int |
| 2092 | tty_capable_p (f, caps, fg, bg) |
| 2093 | struct frame *f; |
| 2094 | unsigned caps; |
| 2095 | unsigned long fg, bg; |
| 2096 | { |
| 2097 | #define TTY_CAPABLE_P_TRY(cap, TS, NC_bit) \ |
| 2098 | if ((caps & (cap)) && (!(TS) || !MAY_USE_WITH_COLORS_P(NC_bit))) \ |
| 2099 | return 0; |
| 2100 | |
| 2101 | TTY_CAPABLE_P_TRY (TTY_CAP_INVERSE, TS_standout_mode, NC_REVERSE); |
| 2102 | TTY_CAPABLE_P_TRY (TTY_CAP_UNDERLINE, TS_enter_underline_mode, NC_UNDERLINE); |
| 2103 | TTY_CAPABLE_P_TRY (TTY_CAP_BOLD, TS_enter_bold_mode, NC_BOLD); |
| 2104 | TTY_CAPABLE_P_TRY (TTY_CAP_DIM, TS_enter_dim_mode, NC_DIM); |
| 2105 | TTY_CAPABLE_P_TRY (TTY_CAP_BLINK, TS_enter_blink_mode, NC_BLINK); |
| 2106 | TTY_CAPABLE_P_TRY (TTY_CAP_ALT_CHARSET, TS_enter_alt_charset_mode, NC_ALT_CHARSET); |
| 2107 | |
| 2108 | /* We can do it! */ |
| 2109 | return 1; |
| 2110 | } |
| 2111 | |
| 2112 | |
| 2113 | /* Return non-zero if the terminal is capable to display colors. */ |
| 2114 | |
| 2115 | DEFUN ("tty-display-color-p", Ftty_display_color_p, Stty_display_color_p, |
| 2116 | 0, 1, 0, |
| 2117 | doc: /* Return non-nil if TTY can display colors on DISPLAY. */) |
| 2118 | (display) |
| 2119 | Lisp_Object display; |
| 2120 | { |
| 2121 | return TN_max_colors > 0 ? Qt : Qnil; |
| 2122 | } |
| 2123 | |
| 2124 | /* Return the number of supported colors. */ |
| 2125 | DEFUN ("tty-display-color-cells", Ftty_display_color_cells, |
| 2126 | Stty_display_color_cells, 0, 1, 0, |
| 2127 | doc: /* Return the number of colors supported by TTY on DISPLAY. */) |
| 2128 | (display) |
| 2129 | Lisp_Object display; |
| 2130 | { |
| 2131 | return make_number (TN_max_colors); |
| 2132 | } |
| 2133 | |
| 2134 | #ifndef WINDOWSNT |
| 2135 | |
| 2136 | /* Save or restore the default color-related capabilities of this |
| 2137 | terminal. */ |
| 2138 | static void |
| 2139 | tty_default_color_capabilities (save) |
| 2140 | int save; |
| 2141 | { |
| 2142 | static char |
| 2143 | *default_orig_pair, *default_set_foreground, *default_set_background; |
| 2144 | static int default_max_colors, default_max_pairs, default_no_color_video; |
| 2145 | |
| 2146 | if (save) |
| 2147 | { |
| 2148 | if (default_orig_pair) |
| 2149 | xfree (default_orig_pair); |
| 2150 | default_orig_pair = TS_orig_pair ? xstrdup (TS_orig_pair) : NULL; |
| 2151 | |
| 2152 | if (default_set_foreground) |
| 2153 | xfree (default_set_foreground); |
| 2154 | default_set_foreground = TS_set_foreground ? xstrdup (TS_set_foreground) |
| 2155 | : NULL; |
| 2156 | |
| 2157 | if (default_set_background) |
| 2158 | xfree (default_set_background); |
| 2159 | default_set_background = TS_set_background ? xstrdup (TS_set_background) |
| 2160 | : NULL; |
| 2161 | |
| 2162 | default_max_colors = TN_max_colors; |
| 2163 | default_max_pairs = TN_max_pairs; |
| 2164 | default_no_color_video = TN_no_color_video; |
| 2165 | } |
| 2166 | else |
| 2167 | { |
| 2168 | TS_orig_pair = default_orig_pair; |
| 2169 | TS_set_foreground = default_set_foreground; |
| 2170 | TS_set_background = default_set_background; |
| 2171 | TN_max_colors = default_max_colors; |
| 2172 | TN_max_pairs = default_max_pairs; |
| 2173 | TN_no_color_video = default_no_color_video; |
| 2174 | } |
| 2175 | } |
| 2176 | |
| 2177 | /* Setup one of the standard tty color schemes according to MODE. |
| 2178 | MODE's value is generally the number of colors which we want to |
| 2179 | support; zero means set up for the default capabilities, the ones |
| 2180 | we saw at term_init time; -1 means turn off color support. */ |
| 2181 | void |
| 2182 | tty_setup_colors (mode) |
| 2183 | int mode; |
| 2184 | { |
| 2185 | /* Canonicalize all negative values of MODE. */ |
| 2186 | if (mode < -1) |
| 2187 | mode = -1; |
| 2188 | |
| 2189 | switch (mode) |
| 2190 | { |
| 2191 | case -1: /* no colors at all */ |
| 2192 | TN_max_colors = 0; |
| 2193 | TN_max_pairs = 0; |
| 2194 | TN_no_color_video = 0; |
| 2195 | TS_set_foreground = TS_set_background = TS_orig_pair = NULL; |
| 2196 | break; |
| 2197 | case 0: /* default colors, if any */ |
| 2198 | default: |
| 2199 | tty_default_color_capabilities (0); |
| 2200 | break; |
| 2201 | case 8: /* 8 standard ANSI colors */ |
| 2202 | TS_orig_pair = "\033[0m"; |
| 2203 | #ifdef TERMINFO |
| 2204 | TS_set_foreground = "\033[3%p1%dm"; |
| 2205 | TS_set_background = "\033[4%p1%dm"; |
| 2206 | #else |
| 2207 | TS_set_foreground = "\033[3%dm"; |
| 2208 | TS_set_background = "\033[4%dm"; |
| 2209 | #endif |
| 2210 | TN_max_colors = 8; |
| 2211 | TN_max_pairs = 64; |
| 2212 | TN_no_color_video = 0; |
| 2213 | break; |
| 2214 | } |
| 2215 | } |
| 2216 | |
| 2217 | void |
| 2218 | set_tty_color_mode (f, val) |
| 2219 | struct frame *f; |
| 2220 | Lisp_Object val; |
| 2221 | { |
| 2222 | Lisp_Object color_mode_spec, current_mode_spec; |
| 2223 | Lisp_Object color_mode, current_mode; |
| 2224 | int mode, old_mode; |
| 2225 | extern Lisp_Object Qtty_color_mode; |
| 2226 | Lisp_Object tty_color_mode_alist; |
| 2227 | |
| 2228 | tty_color_mode_alist = Fintern_soft (build_string ("tty-color-mode-alist"), |
| 2229 | Qnil); |
| 2230 | |
| 2231 | if (INTEGERP (val)) |
| 2232 | color_mode = val; |
| 2233 | else |
| 2234 | { |
| 2235 | if (NILP (tty_color_mode_alist)) |
| 2236 | color_mode_spec = Qnil; |
| 2237 | else |
| 2238 | color_mode_spec = Fassq (val, XSYMBOL (tty_color_mode_alist)->value); |
| 2239 | |
| 2240 | if (CONSP (color_mode_spec)) |
| 2241 | color_mode = XCDR (color_mode_spec); |
| 2242 | else |
| 2243 | color_mode = Qnil; |
| 2244 | } |
| 2245 | |
| 2246 | current_mode_spec = assq_no_quit (Qtty_color_mode, f->param_alist); |
| 2247 | |
| 2248 | if (CONSP (current_mode_spec)) |
| 2249 | current_mode = XCDR (current_mode_spec); |
| 2250 | else |
| 2251 | current_mode = Qnil; |
| 2252 | if (INTEGERP (color_mode)) |
| 2253 | mode = XINT (color_mode); |
| 2254 | else |
| 2255 | mode = 0; /* meaning default */ |
| 2256 | if (INTEGERP (current_mode)) |
| 2257 | old_mode = XINT (current_mode); |
| 2258 | else |
| 2259 | old_mode = 0; |
| 2260 | |
| 2261 | if (mode != old_mode) |
| 2262 | { |
| 2263 | tty_setup_colors (mode); |
| 2264 | /* This recomputes all the faces given the new color |
| 2265 | definitions. */ |
| 2266 | call0 (intern ("tty-set-up-initial-frame-faces")); |
| 2267 | redraw_frame (f); |
| 2268 | } |
| 2269 | } |
| 2270 | |
| 2271 | #endif /* !WINDOWSNT */ |
| 2272 | |
| 2273 | \f |
| 2274 | /*********************************************************************** |
| 2275 | Initialization |
| 2276 | ***********************************************************************/ |
| 2277 | |
| 2278 | void |
| 2279 | term_init (terminal_type) |
| 2280 | char *terminal_type; |
| 2281 | { |
| 2282 | char *area; |
| 2283 | char **address = &area; |
| 2284 | char *buffer = NULL; |
| 2285 | int buffer_size = 4096; |
| 2286 | register char *p; |
| 2287 | int status; |
| 2288 | struct frame *sf = XFRAME (selected_frame); |
| 2289 | |
| 2290 | encode_terminal_bufsize = 0; |
| 2291 | |
| 2292 | #ifdef WINDOWSNT |
| 2293 | initialize_w32_display (); |
| 2294 | |
| 2295 | Wcm_clear (); |
| 2296 | |
| 2297 | area = (char *) xmalloc (2044); |
| 2298 | |
| 2299 | FrameRows = FRAME_LINES (sf); |
| 2300 | FrameCols = FRAME_COLS (sf); |
| 2301 | specified_window = FRAME_LINES (sf); |
| 2302 | |
| 2303 | delete_in_insert_mode = 1; |
| 2304 | |
| 2305 | UseTabs = 0; |
| 2306 | scroll_region_ok = 0; |
| 2307 | |
| 2308 | /* Seems to insert lines when it's not supposed to, messing |
| 2309 | up the display. In doing a trace, it didn't seem to be |
| 2310 | called much, so I don't think we're losing anything by |
| 2311 | turning it off. */ |
| 2312 | |
| 2313 | line_ins_del_ok = 0; |
| 2314 | char_ins_del_ok = 1; |
| 2315 | |
| 2316 | baud_rate = 19200; |
| 2317 | |
| 2318 | FRAME_CAN_HAVE_SCROLL_BARS (sf) = 0; |
| 2319 | FRAME_VERTICAL_SCROLL_BAR_TYPE (sf) = vertical_scroll_bar_none; |
| 2320 | TN_max_colors = 16; /* Required to be non-zero for tty-display-color-p */ |
| 2321 | |
| 2322 | return; |
| 2323 | #else /* not WINDOWSNT */ |
| 2324 | |
| 2325 | Wcm_clear (); |
| 2326 | |
| 2327 | buffer = (char *) xmalloc (buffer_size); |
| 2328 | status = tgetent (buffer, terminal_type); |
| 2329 | if (status < 0) |
| 2330 | { |
| 2331 | #ifdef TERMINFO |
| 2332 | fatal ("Cannot open terminfo database file"); |
| 2333 | #else |
| 2334 | fatal ("Cannot open termcap database file"); |
| 2335 | #endif |
| 2336 | } |
| 2337 | if (status == 0) |
| 2338 | { |
| 2339 | #ifdef TERMINFO |
| 2340 | fatal ("Terminal type %s is not defined.\n\ |
| 2341 | If that is not the actual type of terminal you have,\n\ |
| 2342 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
| 2343 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ |
| 2344 | to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
| 2345 | terminal_type); |
| 2346 | #else |
| 2347 | fatal ("Terminal type %s is not defined.\n\ |
| 2348 | If that is not the actual type of terminal you have,\n\ |
| 2349 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
| 2350 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ |
| 2351 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
| 2352 | terminal_type); |
| 2353 | #endif |
| 2354 | } |
| 2355 | |
| 2356 | #ifndef TERMINFO |
| 2357 | if (strlen (buffer) >= buffer_size) |
| 2358 | abort (); |
| 2359 | buffer_size = strlen (buffer); |
| 2360 | #endif |
| 2361 | area = (char *) xmalloc (buffer_size); |
| 2362 | |
| 2363 | TS_ins_line = tgetstr ("al", address); |
| 2364 | TS_ins_multi_lines = tgetstr ("AL", address); |
| 2365 | TS_bell = tgetstr ("bl", address); |
| 2366 | BackTab = tgetstr ("bt", address); |
| 2367 | TS_clr_to_bottom = tgetstr ("cd", address); |
| 2368 | TS_clr_line = tgetstr ("ce", address); |
| 2369 | TS_clr_frame = tgetstr ("cl", address); |
| 2370 | ColPosition = NULL; /* tgetstr ("ch", address); */ |
| 2371 | AbsPosition = tgetstr ("cm", address); |
| 2372 | CR = tgetstr ("cr", address); |
| 2373 | TS_set_scroll_region = tgetstr ("cs", address); |
| 2374 | TS_set_scroll_region_1 = tgetstr ("cS", address); |
| 2375 | RowPosition = tgetstr ("cv", address); |
| 2376 | TS_del_char = tgetstr ("dc", address); |
| 2377 | TS_del_multi_chars = tgetstr ("DC", address); |
| 2378 | TS_del_line = tgetstr ("dl", address); |
| 2379 | TS_del_multi_lines = tgetstr ("DL", address); |
| 2380 | TS_delete_mode = tgetstr ("dm", address); |
| 2381 | TS_end_delete_mode = tgetstr ("ed", address); |
| 2382 | TS_end_insert_mode = tgetstr ("ei", address); |
| 2383 | Home = tgetstr ("ho", address); |
| 2384 | TS_ins_char = tgetstr ("ic", address); |
| 2385 | TS_ins_multi_chars = tgetstr ("IC", address); |
| 2386 | TS_insert_mode = tgetstr ("im", address); |
| 2387 | TS_pad_inserted_char = tgetstr ("ip", address); |
| 2388 | TS_end_keypad_mode = tgetstr ("ke", address); |
| 2389 | TS_keypad_mode = tgetstr ("ks", address); |
| 2390 | LastLine = tgetstr ("ll", address); |
| 2391 | Right = tgetstr ("nd", address); |
| 2392 | Down = tgetstr ("do", address); |
| 2393 | if (!Down) |
| 2394 | Down = tgetstr ("nl", address); /* Obsolete name for "do" */ |
| 2395 | #ifdef VMS |
| 2396 | /* VMS puts a carriage return before each linefeed, |
| 2397 | so it is not safe to use linefeeds. */ |
| 2398 | if (Down && Down[0] == '\n' && Down[1] == '\0') |
| 2399 | Down = 0; |
| 2400 | #endif /* VMS */ |
| 2401 | if (tgetflag ("bs")) |
| 2402 | Left = "\b"; /* can't possibly be longer! */ |
| 2403 | else /* (Actually, "bs" is obsolete...) */ |
| 2404 | Left = tgetstr ("le", address); |
| 2405 | if (!Left) |
| 2406 | Left = tgetstr ("bc", address); /* Obsolete name for "le" */ |
| 2407 | TS_pad_char = tgetstr ("pc", address); |
| 2408 | TS_repeat = tgetstr ("rp", address); |
| 2409 | TS_end_standout_mode = tgetstr ("se", address); |
| 2410 | TS_fwd_scroll = tgetstr ("sf", address); |
| 2411 | TS_standout_mode = tgetstr ("so", address); |
| 2412 | TS_rev_scroll = tgetstr ("sr", address); |
| 2413 | Wcm.cm_tab = tgetstr ("ta", address); |
| 2414 | TS_end_termcap_modes = tgetstr ("te", address); |
| 2415 | TS_termcap_modes = tgetstr ("ti", address); |
| 2416 | Up = tgetstr ("up", address); |
| 2417 | TS_visible_bell = tgetstr ("vb", address); |
| 2418 | TS_cursor_normal = tgetstr ("ve", address); |
| 2419 | TS_cursor_visible = tgetstr ("vs", address); |
| 2420 | TS_cursor_invisible = tgetstr ("vi", address); |
| 2421 | TS_set_window = tgetstr ("wi", address); |
| 2422 | |
| 2423 | TS_enter_underline_mode = tgetstr ("us", address); |
| 2424 | TS_exit_underline_mode = tgetstr ("ue", address); |
| 2425 | TS_enter_bold_mode = tgetstr ("md", address); |
| 2426 | TS_enter_dim_mode = tgetstr ("mh", address); |
| 2427 | TS_enter_blink_mode = tgetstr ("mb", address); |
| 2428 | TS_enter_reverse_mode = tgetstr ("mr", address); |
| 2429 | TS_enter_alt_charset_mode = tgetstr ("as", address); |
| 2430 | TS_exit_alt_charset_mode = tgetstr ("ae", address); |
| 2431 | TS_exit_attribute_mode = tgetstr ("me", address); |
| 2432 | |
| 2433 | MultiUp = tgetstr ("UP", address); |
| 2434 | MultiDown = tgetstr ("DO", address); |
| 2435 | MultiLeft = tgetstr ("LE", address); |
| 2436 | MultiRight = tgetstr ("RI", address); |
| 2437 | |
| 2438 | /* SVr4/ANSI color suppert. If "op" isn't available, don't support |
| 2439 | color because we can't switch back to the default foreground and |
| 2440 | background. */ |
| 2441 | TS_orig_pair = tgetstr ("op", address); |
| 2442 | if (TS_orig_pair) |
| 2443 | { |
| 2444 | TS_set_foreground = tgetstr ("AF", address); |
| 2445 | TS_set_background = tgetstr ("AB", address); |
| 2446 | if (!TS_set_foreground) |
| 2447 | { |
| 2448 | /* SVr4. */ |
| 2449 | TS_set_foreground = tgetstr ("Sf", address); |
| 2450 | TS_set_background = tgetstr ("Sb", address); |
| 2451 | } |
| 2452 | |
| 2453 | TN_max_colors = tgetnum ("Co"); |
| 2454 | TN_max_pairs = tgetnum ("pa"); |
| 2455 | |
| 2456 | TN_no_color_video = tgetnum ("NC"); |
| 2457 | if (TN_no_color_video == -1) |
| 2458 | TN_no_color_video = 0; |
| 2459 | } |
| 2460 | |
| 2461 | tty_default_color_capabilities (1); |
| 2462 | |
| 2463 | MagicWrap = tgetflag ("xn"); |
| 2464 | /* Since we make MagicWrap terminals look like AutoWrap, we need to have |
| 2465 | the former flag imply the latter. */ |
| 2466 | AutoWrap = MagicWrap || tgetflag ("am"); |
| 2467 | memory_below_frame = tgetflag ("db"); |
| 2468 | TF_hazeltine = tgetflag ("hz"); |
| 2469 | must_write_spaces = tgetflag ("in"); |
| 2470 | meta_key = tgetflag ("km") || tgetflag ("MT"); |
| 2471 | TF_insmode_motion = tgetflag ("mi"); |
| 2472 | TF_standout_motion = tgetflag ("ms"); |
| 2473 | TF_underscore = tgetflag ("ul"); |
| 2474 | TF_teleray = tgetflag ("xt"); |
| 2475 | |
| 2476 | term_get_fkeys (address); |
| 2477 | |
| 2478 | /* Get frame size from system, or else from termcap. */ |
| 2479 | { |
| 2480 | int height, width; |
| 2481 | get_frame_size (&width, &height); |
| 2482 | FRAME_COLS (sf) = width; |
| 2483 | FRAME_LINES (sf) = height; |
| 2484 | } |
| 2485 | |
| 2486 | if (FRAME_COLS (sf) <= 0) |
| 2487 | SET_FRAME_COLS (sf, tgetnum ("co")); |
| 2488 | else |
| 2489 | /* Keep width and external_width consistent */ |
| 2490 | SET_FRAME_COLS (sf, FRAME_COLS (sf)); |
| 2491 | if (FRAME_LINES (sf) <= 0) |
| 2492 | FRAME_LINES (sf) = tgetnum ("li"); |
| 2493 | |
| 2494 | if (FRAME_LINES (sf) < 3 || FRAME_COLS (sf) < 3) |
| 2495 | fatal ("Screen size %dx%d is too small", |
| 2496 | FRAME_LINES (sf), FRAME_COLS (sf)); |
| 2497 | |
| 2498 | min_padding_speed = tgetnum ("pb"); |
| 2499 | TabWidth = tgetnum ("tw"); |
| 2500 | |
| 2501 | #ifdef VMS |
| 2502 | /* These capabilities commonly use ^J. |
| 2503 | I don't know why, but sending them on VMS does not work; |
| 2504 | it causes following spaces to be lost, sometimes. |
| 2505 | For now, the simplest fix is to avoid using these capabilities ever. */ |
| 2506 | if (Down && Down[0] == '\n') |
| 2507 | Down = 0; |
| 2508 | #endif /* VMS */ |
| 2509 | |
| 2510 | if (!TS_bell) |
| 2511 | TS_bell = "\07"; |
| 2512 | |
| 2513 | if (!TS_fwd_scroll) |
| 2514 | TS_fwd_scroll = Down; |
| 2515 | |
| 2516 | PC = TS_pad_char ? *TS_pad_char : 0; |
| 2517 | |
| 2518 | if (TabWidth < 0) |
| 2519 | TabWidth = 8; |
| 2520 | |
| 2521 | /* Turned off since /etc/termcap seems to have :ta= for most terminals |
| 2522 | and newer termcap doc does not seem to say there is a default. |
| 2523 | if (!Wcm.cm_tab) |
| 2524 | Wcm.cm_tab = "\t"; |
| 2525 | */ |
| 2526 | |
| 2527 | /* We don't support standout modes that use `magic cookies', so |
| 2528 | turn off any that do. */ |
| 2529 | if (TS_standout_mode && tgetnum ("sg") >= 0) |
| 2530 | { |
| 2531 | TS_standout_mode = 0; |
| 2532 | TS_end_standout_mode = 0; |
| 2533 | } |
| 2534 | if (TS_enter_underline_mode && tgetnum ("ug") >= 0) |
| 2535 | { |
| 2536 | TS_enter_underline_mode = 0; |
| 2537 | TS_exit_underline_mode = 0; |
| 2538 | } |
| 2539 | |
| 2540 | /* If there's no standout mode, try to use underlining instead. */ |
| 2541 | if (TS_standout_mode == 0) |
| 2542 | { |
| 2543 | TS_standout_mode = TS_enter_underline_mode; |
| 2544 | TS_end_standout_mode = TS_exit_underline_mode; |
| 2545 | } |
| 2546 | |
| 2547 | /* If no `se' string, try using a `me' string instead. |
| 2548 | If that fails, we can't use standout mode at all. */ |
| 2549 | if (TS_end_standout_mode == 0) |
| 2550 | { |
| 2551 | char *s = tgetstr ("me", address); |
| 2552 | if (s != 0) |
| 2553 | TS_end_standout_mode = s; |
| 2554 | else |
| 2555 | TS_standout_mode = 0; |
| 2556 | } |
| 2557 | |
| 2558 | if (TF_teleray) |
| 2559 | { |
| 2560 | Wcm.cm_tab = 0; |
| 2561 | /* We can't support standout mode, because it uses magic cookies. */ |
| 2562 | TS_standout_mode = 0; |
| 2563 | /* But that means we cannot rely on ^M to go to column zero! */ |
| 2564 | CR = 0; |
| 2565 | /* LF can't be trusted either -- can alter hpos */ |
| 2566 | /* if move at column 0 thru a line with TS_standout_mode */ |
| 2567 | Down = 0; |
| 2568 | } |
| 2569 | |
| 2570 | /* Special handling for certain terminal types known to need it */ |
| 2571 | |
| 2572 | if (!strcmp (terminal_type, "supdup")) |
| 2573 | { |
| 2574 | memory_below_frame = 1; |
| 2575 | Wcm.cm_losewrap = 1; |
| 2576 | } |
| 2577 | if (!strncmp (terminal_type, "c10", 3) |
| 2578 | || !strcmp (terminal_type, "perq")) |
| 2579 | { |
| 2580 | /* Supply a makeshift :wi string. |
| 2581 | This string is not valid in general since it works only |
| 2582 | for windows starting at the upper left corner; |
| 2583 | but that is all Emacs uses. |
| 2584 | |
| 2585 | This string works only if the frame is using |
| 2586 | the top of the video memory, because addressing is memory-relative. |
| 2587 | So first check the :ti string to see if that is true. |
| 2588 | |
| 2589 | It would be simpler if the :wi string could go in the termcap |
| 2590 | entry, but it can't because it is not fully valid. |
| 2591 | If it were in the termcap entry, it would confuse other programs. */ |
| 2592 | if (!TS_set_window) |
| 2593 | { |
| 2594 | p = TS_termcap_modes; |
| 2595 | while (*p && strcmp (p, "\033v ")) |
| 2596 | p++; |
| 2597 | if (*p) |
| 2598 | TS_set_window = "\033v%C %C %C %C "; |
| 2599 | } |
| 2600 | /* Termcap entry often fails to have :in: flag */ |
| 2601 | must_write_spaces = 1; |
| 2602 | /* :ti string typically fails to have \E^G! in it */ |
| 2603 | /* This limits scope of insert-char to one line. */ |
| 2604 | strcpy (area, TS_termcap_modes); |
| 2605 | strcat (area, "\033\007!"); |
| 2606 | TS_termcap_modes = area; |
| 2607 | area += strlen (area) + 1; |
| 2608 | p = AbsPosition; |
| 2609 | /* Change all %+ parameters to %C, to handle |
| 2610 | values above 96 correctly for the C100. */ |
| 2611 | while (*p) |
| 2612 | { |
| 2613 | if (p[0] == '%' && p[1] == '+') |
| 2614 | p[1] = 'C'; |
| 2615 | p++; |
| 2616 | } |
| 2617 | } |
| 2618 | |
| 2619 | FrameRows = FRAME_LINES (sf); |
| 2620 | FrameCols = FRAME_COLS (sf); |
| 2621 | specified_window = FRAME_LINES (sf); |
| 2622 | |
| 2623 | if (Wcm_init () == -1) /* can't do cursor motion */ |
| 2624 | #ifdef VMS |
| 2625 | fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
| 2626 | It lacks the ability to position the cursor.\n\ |
| 2627 | If that is not the actual type of terminal you have, use either the\n\ |
| 2628 | DCL command `SET TERMINAL/DEVICE= ...' for DEC-compatible terminals,\n\ |
| 2629 | or `define EMACS_TERM \"terminal type\"' for non-DEC terminals.", |
| 2630 | terminal_type); |
| 2631 | #else /* not VMS */ |
| 2632 | # ifdef TERMINFO |
| 2633 | fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
| 2634 | It lacks the ability to position the cursor.\n\ |
| 2635 | If that is not the actual type of terminal you have,\n\ |
| 2636 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
| 2637 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ |
| 2638 | to do `unset TERMINFO' (C-shell: `unsetenv TERMINFO') as well.", |
| 2639 | terminal_type); |
| 2640 | # else /* TERMCAP */ |
| 2641 | fatal ("Terminal type \"%s\" is not powerful enough to run Emacs.\n\ |
| 2642 | It lacks the ability to position the cursor.\n\ |
| 2643 | If that is not the actual type of terminal you have,\n\ |
| 2644 | use the Bourne shell command `TERM=... export TERM' (C-shell:\n\ |
| 2645 | `setenv TERM ...') to specify the correct type. It may be necessary\n\ |
| 2646 | to do `unset TERMCAP' (C-shell: `unsetenv TERMCAP') as well.", |
| 2647 | terminal_type); |
| 2648 | # endif /* TERMINFO */ |
| 2649 | #endif /*VMS */ |
| 2650 | if (FRAME_LINES (sf) <= 0 |
| 2651 | || FRAME_COLS (sf) <= 0) |
| 2652 | fatal ("The frame size has not been specified"); |
| 2653 | |
| 2654 | delete_in_insert_mode |
| 2655 | = TS_delete_mode && TS_insert_mode |
| 2656 | && !strcmp (TS_delete_mode, TS_insert_mode); |
| 2657 | |
| 2658 | se_is_so = (TS_standout_mode |
| 2659 | && TS_end_standout_mode |
| 2660 | && !strcmp (TS_standout_mode, TS_end_standout_mode)); |
| 2661 | |
| 2662 | UseTabs = tabs_safe_p () && TabWidth == 8; |
| 2663 | |
| 2664 | scroll_region_ok |
| 2665 | = (Wcm.cm_abs |
| 2666 | && (TS_set_window || TS_set_scroll_region || TS_set_scroll_region_1)); |
| 2667 | |
| 2668 | line_ins_del_ok = (((TS_ins_line || TS_ins_multi_lines) |
| 2669 | && (TS_del_line || TS_del_multi_lines)) |
| 2670 | || (scroll_region_ok && TS_fwd_scroll && TS_rev_scroll)); |
| 2671 | |
| 2672 | char_ins_del_ok = ((TS_ins_char || TS_insert_mode |
| 2673 | || TS_pad_inserted_char || TS_ins_multi_chars) |
| 2674 | && (TS_del_char || TS_del_multi_chars)); |
| 2675 | |
| 2676 | fast_clear_end_of_line = TS_clr_line != 0; |
| 2677 | |
| 2678 | init_baud_rate (); |
| 2679 | if (read_socket_hook) /* Baudrate is somewhat */ |
| 2680 | /* meaningless in this case */ |
| 2681 | baud_rate = 9600; |
| 2682 | |
| 2683 | FRAME_CAN_HAVE_SCROLL_BARS (sf) = 0; |
| 2684 | FRAME_VERTICAL_SCROLL_BAR_TYPE (sf) = vertical_scroll_bar_none; |
| 2685 | #endif /* WINDOWSNT */ |
| 2686 | |
| 2687 | xfree (buffer); |
| 2688 | } |
| 2689 | |
| 2690 | /* VARARGS 1 */ |
| 2691 | void |
| 2692 | fatal (str, arg1, arg2) |
| 2693 | char *str, *arg1, *arg2; |
| 2694 | { |
| 2695 | fprintf (stderr, "emacs: "); |
| 2696 | fprintf (stderr, str, arg1, arg2); |
| 2697 | fprintf (stderr, "\n"); |
| 2698 | fflush (stderr); |
| 2699 | exit (1); |
| 2700 | } |
| 2701 | |
| 2702 | DEFUN ("tty-no-underline", Ftty_no_underline, Stty_no_underline, 0, 0, 0, |
| 2703 | doc: /* Declare that this terminal does not handle underlining. |
| 2704 | This is used to override the terminfo data, for certain terminals that |
| 2705 | do not really do underlining, but say that they do. */) |
| 2706 | () |
| 2707 | { |
| 2708 | TS_enter_underline_mode = 0; |
| 2709 | return Qnil; |
| 2710 | } |
| 2711 | |
| 2712 | void |
| 2713 | syms_of_term () |
| 2714 | { |
| 2715 | DEFVAR_BOOL ("system-uses-terminfo", &system_uses_terminfo, |
| 2716 | doc: /* Non-nil means the system uses terminfo rather than termcap. |
| 2717 | This variable can be used by terminal emulator packages. */); |
| 2718 | #ifdef TERMINFO |
| 2719 | system_uses_terminfo = 1; |
| 2720 | #else |
| 2721 | system_uses_terminfo = 0; |
| 2722 | #endif |
| 2723 | |
| 2724 | DEFVAR_LISP ("ring-bell-function", &Vring_bell_function, |
| 2725 | doc: /* Non-nil means call this function to ring the bell. |
| 2726 | The function should accept no arguments. */); |
| 2727 | Vring_bell_function = Qnil; |
| 2728 | |
| 2729 | defsubr (&Stty_display_color_p); |
| 2730 | defsubr (&Stty_display_color_cells); |
| 2731 | defsubr (&Stty_no_underline); |
| 2732 | } |
| 2733 | |
| 2734 | /* arch-tag: 498e7449-6f2e-45e2-91dd-b7d4ca488193 |
| 2735 | (do not change this comment) */ |