Commit | Line | Data |
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0e5c5ac0 | 1 | /* MS-DOS specific C utilities. -*- coding: emacs-mule -*- |
db722735 | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc. |
1b94449f RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
edfc0d45 | 8 | the Free Software Foundation; either version 2, or (at your option) |
1b94449f RS |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
1b94449f | 20 | |
9da6e765 | 21 | /* Contributed by Morten Welinder */ |
f32d4091 | 22 | /* New display, keyboard, and mouse control by Kim F. Storm */ |
9da6e765 | 23 | |
1b94449f RS |
24 | /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */ |
25 | ||
48984716 | 26 | #include <config.h> |
1b94449f RS |
27 | |
28 | #ifdef MSDOS | |
29 | #include "lisp.h" | |
30 | #include <stdio.h> | |
31 | #include <stdlib.h> | |
32 | #include <sys/param.h> | |
33 | #include <sys/time.h> | |
34 | #include <dos.h> | |
d21e67b5 | 35 | #include <errno.h> |
a7cf9151 | 36 | #include <string.h> /* for bzero and string functions */ |
d21e67b5 | 37 | #include <sys/stat.h> /* for _fixpath */ |
a7cf9151 | 38 | #include <unistd.h> /* for chdir, dup, dup2, etc. */ |
1bd7b2c7 RS |
39 | #if __DJGPP__ >= 2 |
40 | #include <fcntl.h> | |
a7cf9151 | 41 | #include <io.h> /* for setmode */ |
fc171623 KH |
42 | #include <dpmi.h> /* for __dpmi_xxx stuff */ |
43 | #include <sys/farptr.h> /* for _farsetsel, _farnspokeb */ | |
d21e67b5 | 44 | #include <libc/dosio.h> /* for _USE_LFN */ |
a7cf9151 | 45 | #include <conio.h> /* for cputs */ |
1bd7b2c7 RS |
46 | #endif |
47 | ||
1b94449f RS |
48 | #include "dosfns.h" |
49 | #include "msdos.h" | |
50 | #include "systime.h" | |
51 | #include "termhooks.h" | |
87485d6f MW |
52 | #include "dispextern.h" |
53 | #include "termopts.h" | |
1b94449f | 54 | #include "frame.h" |
87485d6f | 55 | #include "window.h" |
fc171623 KH |
56 | #include "buffer.h" |
57 | #include "commands.h" | |
1b94449f RS |
58 | #include <go32.h> |
59 | #include <pc.h> | |
60 | #include <ctype.h> | |
61 | /* #include <process.h> */ | |
62 | /* Damn that local process.h! Instead we can define P_WAIT ourselves. */ | |
63 | #define P_WAIT 1 | |
64 | ||
d21e67b5 RS |
65 | #ifndef _USE_LFN |
66 | #define _USE_LFN 0 | |
67 | #endif | |
68 | ||
b36701cc RS |
69 | #ifndef _dos_ds |
70 | #define _dos_ds _go32_info_block.selector_for_linear_memory | |
71 | #endif | |
72 | ||
1bd7b2c7 RS |
73 | #if __DJGPP__ > 1 |
74 | ||
8748735b | 75 | #include <signal.h> |
417a04bb | 76 | #include "syssignal.h" |
8748735b | 77 | |
1bd7b2c7 RS |
78 | #ifndef SYSTEM_MALLOC |
79 | ||
80 | #ifdef GNU_MALLOC | |
81 | ||
82 | /* If other `malloc' than ours is used, force our `sbrk' behave like | |
83 | Unix programs expect (resize memory blocks to keep them contiguous). | |
84 | If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory, | |
85 | because that's what `gmalloc' expects to get. */ | |
86 | #include <crt0.h> | |
87 | ||
88 | #ifdef REL_ALLOC | |
89 | int _crt0_startup_flags = _CRT0_FLAG_UNIX_SBRK; | |
90 | #else /* not REL_ALLOC */ | |
91 | int _crt0_startup_flags = (_CRT0_FLAG_UNIX_SBRK | _CRT0_FLAG_FILL_SBRK_MEMORY); | |
92 | #endif /* not REL_ALLOC */ | |
93 | #endif /* GNU_MALLOC */ | |
94 | ||
95 | #endif /* not SYSTEM_MALLOC */ | |
96 | #endif /* __DJGPP__ > 1 */ | |
aee81730 RS |
97 | |
98 | static unsigned long | |
99 | event_timestamp () | |
100 | { | |
101 | struct time t; | |
102 | unsigned long s; | |
f32d4091 | 103 | |
aee81730 RS |
104 | gettime (&t); |
105 | s = t.ti_min; | |
106 | s *= 60; | |
107 | s += t.ti_sec; | |
108 | s *= 1000; | |
109 | s += t.ti_hund * 10; | |
f32d4091 | 110 | |
aee81730 RS |
111 | return s; |
112 | } | |
113 | ||
f32d4091 KS |
114 | \f |
115 | /* ------------------------ Mouse control --------------------------- | |
116 | * | |
117 | * Coordinates are in screen positions and zero based. | |
118 | * Mouse buttons are numbered from left to right and also zero based. | |
119 | */ | |
1b94449f | 120 | |
f32d4091 KS |
121 | int have_mouse; /* 0: no, 1: enabled, -1: disabled */ |
122 | static int mouse_visible; | |
1b94449f | 123 | |
f32d4091 KS |
124 | static int mouse_last_x; |
125 | static int mouse_last_y; | |
1b94449f | 126 | |
f32d4091 KS |
127 | static int mouse_button_translate[NUM_MOUSE_BUTTONS]; |
128 | static int mouse_button_count; | |
1b94449f | 129 | |
f32d4091 KS |
130 | void |
131 | mouse_on () | |
1b94449f | 132 | { |
1b94449f | 133 | union REGS regs; |
1b94449f | 134 | |
f32d4091 | 135 | if (have_mouse > 0 && !mouse_visible) |
1b94449f | 136 | { |
f32d4091 KS |
137 | if (termscript) |
138 | fprintf (termscript, "<M_ON>"); | |
139 | regs.x.ax = 0x0001; | |
140 | int86 (0x33, ®s, ®s); | |
141 | mouse_visible = 1; | |
1b94449f | 142 | } |
1b94449f RS |
143 | } |
144 | ||
f32d4091 KS |
145 | void |
146 | mouse_off () | |
1b94449f | 147 | { |
f32d4091 | 148 | union REGS regs; |
1b94449f | 149 | |
f32d4091 | 150 | if (have_mouse > 0 && mouse_visible) |
1b94449f | 151 | { |
f32d4091 KS |
152 | if (termscript) |
153 | fprintf (termscript, "<M_OFF>"); | |
154 | regs.x.ax = 0x0002; | |
155 | int86 (0x33, ®s, ®s); | |
156 | mouse_visible = 0; | |
1b94449f | 157 | } |
1b94449f RS |
158 | } |
159 | ||
f32d4091 KS |
160 | void |
161 | mouse_moveto (x, y) | |
162 | int x, y; | |
1b94449f | 163 | { |
f32d4091 | 164 | union REGS regs; |
1b94449f | 165 | |
f32d4091 KS |
166 | if (termscript) |
167 | fprintf (termscript, "<M_XY=%dx%d>", x, y); | |
168 | regs.x.ax = 0x0004; | |
169 | mouse_last_x = regs.x.cx = x * 8; | |
170 | mouse_last_y = regs.x.dx = y * 8; | |
171 | int86 (0x33, ®s, ®s); | |
1b94449f RS |
172 | } |
173 | ||
f32d4091 KS |
174 | static int |
175 | mouse_pressed (b, xp, yp) | |
176 | int b, *xp, *yp; | |
1b94449f | 177 | { |
f32d4091 | 178 | union REGS regs; |
1b94449f | 179 | |
f32d4091 KS |
180 | if (b >= mouse_button_count) |
181 | return 0; | |
182 | regs.x.ax = 0x0005; | |
183 | regs.x.bx = mouse_button_translate[b]; | |
184 | int86 (0x33, ®s, ®s); | |
185 | if (regs.x.bx) | |
186 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
187 | return (regs.x.bx != 0); | |
1b94449f RS |
188 | } |
189 | ||
f32d4091 KS |
190 | static int |
191 | mouse_released (b, xp, yp) | |
192 | int b, *xp, *yp; | |
1b94449f RS |
193 | { |
194 | union REGS regs; | |
195 | ||
f32d4091 KS |
196 | if (b >= mouse_button_count) |
197 | return 0; | |
198 | regs.x.ax = 0x0006; | |
199 | regs.x.bx = mouse_button_translate[b]; | |
200 | int86 (0x33, ®s, ®s); | |
201 | if (regs.x.bx) | |
202 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
203 | return (regs.x.bx != 0); | |
1b94449f RS |
204 | } |
205 | ||
f32d4091 KS |
206 | static void |
207 | mouse_get_xy (int *x, int *y) | |
1b94449f | 208 | { |
f32d4091 | 209 | union REGS regs; |
1b94449f | 210 | |
f32d4091 KS |
211 | regs.x.ax = 0x0003; |
212 | int86 (0x33, ®s, ®s); | |
213 | *x = regs.x.cx / 8; | |
214 | *y = regs.x.dx / 8; | |
1b94449f RS |
215 | } |
216 | ||
f32d4091 KS |
217 | void |
218 | mouse_get_pos (f, insist, bar_window, part, x, y, time) | |
219 | FRAME_PTR *f; | |
220 | int insist; | |
221 | Lisp_Object *bar_window, *x, *y; | |
222 | enum scroll_bar_part *part; | |
223 | unsigned long *time; | |
224 | { | |
225 | int ix, iy; | |
226 | union REGS regs; | |
227 | ||
228 | regs.x.ax = 0x0003; | |
229 | int86 (0x33, ®s, ®s); | |
230 | *f = selected_frame; | |
231 | *bar_window = Qnil; | |
232 | mouse_get_xy (&ix, &iy); | |
233 | selected_frame->mouse_moved = 0; | |
234 | *x = make_number (ix); | |
235 | *y = make_number (iy); | |
236 | *time = event_timestamp (); | |
237 | } | |
1b94449f | 238 | |
f32d4091 KS |
239 | static void |
240 | mouse_check_moved () | |
1b94449f | 241 | { |
aee81730 | 242 | int x, y; |
1b94449f | 243 | |
f32d4091 KS |
244 | mouse_get_xy (&x, &y); |
245 | selected_frame->mouse_moved |= (x != mouse_last_x || y != mouse_last_y); | |
246 | mouse_last_x = x; | |
247 | mouse_last_y = y; | |
248 | } | |
1b94449f | 249 | |
f32d4091 KS |
250 | void |
251 | mouse_init () | |
252 | { | |
253 | union REGS regs; | |
647c32eb | 254 | |
f32d4091 KS |
255 | if (termscript) |
256 | fprintf (termscript, "<M_INIT>"); | |
1b94449f | 257 | |
f32d4091 KS |
258 | regs.x.ax = 0x0021; |
259 | int86 (0x33, ®s, ®s); | |
091d0bdf | 260 | |
f32d4091 KS |
261 | regs.x.ax = 0x0007; |
262 | regs.x.cx = 0; | |
263 | regs.x.dx = 8 * (ScreenCols () - 1); | |
264 | int86 (0x33, ®s, ®s); | |
1b94449f | 265 | |
f32d4091 KS |
266 | regs.x.ax = 0x0008; |
267 | regs.x.cx = 0; | |
268 | regs.x.dx = 8 * (ScreenRows () - 1); | |
269 | int86 (0x33, ®s, ®s); | |
1b94449f | 270 | |
f32d4091 KS |
271 | mouse_moveto (0, 0); |
272 | mouse_visible = 0; | |
273 | } | |
3eb1dbb6 | 274 | \f |
f32d4091 KS |
275 | /* ------------------------- Screen control ---------------------- |
276 | * | |
277 | */ | |
aee81730 | 278 | |
f32d4091 | 279 | static int internal_terminal = 0; |
aee81730 | 280 | |
f32d4091 KS |
281 | #ifndef HAVE_X_WINDOWS |
282 | extern unsigned char ScreenAttrib; | |
283 | static int screen_face; | |
284 | static int highlight; | |
aee81730 | 285 | |
f32d4091 KS |
286 | static int screen_size_X; |
287 | static int screen_size_Y; | |
288 | static int screen_size; | |
1b94449f | 289 | |
f32d4091 KS |
290 | static int current_pos_X; |
291 | static int current_pos_Y; | |
292 | static int new_pos_X; | |
293 | static int new_pos_Y; | |
1b94449f | 294 | |
f32d4091 KS |
295 | static void *startup_screen_buffer; |
296 | static int startup_screen_size_X; | |
297 | static int startup_screen_size_Y; | |
298 | static int startup_pos_X; | |
299 | static int startup_pos_Y; | |
c9adab25 | 300 | static unsigned char startup_screen_attrib; |
1b94449f | 301 | |
f32d4091 | 302 | static int term_setup_done; |
1b94449f | 303 | |
f32d4091 | 304 | /* Similar to the_only_frame. */ |
f6816f88 | 305 | struct x_output the_only_x_display; |
1b94449f | 306 | |
f32d4091 KS |
307 | /* This is never dereferenced. */ |
308 | Display *x_current_display; | |
1b94449f | 309 | |
f32d4091 KS |
310 | static |
311 | dos_direct_output (y, x, buf, len) | |
312 | int y; | |
313 | int x; | |
314 | char *buf; | |
315 | int len; | |
1b94449f | 316 | { |
f32d4091 | 317 | int t = (int) ScreenPrimary + 2 * (x + y * screen_size_X); |
fc171623 KH |
318 | |
319 | #if (__DJGPP__ < 2) | |
f32d4091 KS |
320 | while (--len >= 0) { |
321 | dosmemput (buf++, 1, t); | |
322 | t += 2; | |
323 | } | |
fc171623 KH |
324 | #else |
325 | /* This is faster. */ | |
326 | for (_farsetsel (_dos_ds); --len >= 0; t += 2, buf++) | |
327 | _farnspokeb (t, *buf); | |
328 | #endif | |
1b94449f | 329 | } |
aee81730 | 330 | #endif |
1b94449f | 331 | |
1b94449f RS |
332 | /* Flash the screen as a substitute for BEEPs. */ |
333 | ||
f32d4091 | 334 | #if (__DJGPP__ < 2) |
49a09c76 | 335 | static void |
fcea9cd4 | 336 | do_visible_bell (xorattr) |
1b94449f RS |
337 | unsigned char xorattr; |
338 | { | |
49a09c76 | 339 | asm volatile |
ca986694 | 340 | (" movb $1,%%dl |
1b94449f | 341 | visible_bell_0: |
ca986694 | 342 | movl _ScreenPrimary,%%eax |
49a09c76 | 343 | call dosmemsetup |
ca986694 RS |
344 | movl %%eax,%%ebx |
345 | movl %1,%%ecx | |
346 | movb %0,%%al | |
347 | incl %%ebx | |
1b94449f | 348 | visible_bell_1: |
ca986694 RS |
349 | xorb %%al,%%gs:(%%ebx) |
350 | addl $2,%%ebx | |
351 | decl %%ecx | |
49a09c76 | 352 | jne visible_bell_1 |
ca986694 | 353 | decb %%dl |
49a09c76 | 354 | jne visible_bell_3 |
1b94449f | 355 | visible_bell_2: |
ca986694 RS |
356 | movzwl %%ax,%%eax |
357 | movzwl %%ax,%%eax | |
358 | movzwl %%ax,%%eax | |
359 | movzwl %%ax,%%eax | |
360 | decw %%cx | |
49a09c76 RS |
361 | jne visible_bell_2 |
362 | jmp visible_bell_0 | |
ca986694 RS |
363 | visible_bell_3:" |
364 | : /* no output */ | |
f32d4091 | 365 | : "m" (xorattr), "g" (screen_size) |
ca986694 | 366 | : "%eax", "%ebx", /* "%gs",*/ "%ecx", "%edx"); |
1b94449f RS |
367 | } |
368 | ||
f32d4091 KS |
369 | static void |
370 | ScreenVisualBell (void) | |
371 | { | |
372 | /* This creates an xor-mask that will swap the default fore- and | |
373 | background colors. */ | |
374 | do_visible_bell (((the_only_x_display.foreground_pixel | |
375 | ^ the_only_x_display.background_pixel) | |
376 | * 0x11) & 0x7f); | |
377 | } | |
378 | #endif | |
379 | ||
380 | #ifndef HAVE_X_WINDOWS | |
381 | ||
b36701cc RS |
382 | static int blink_bit = -1; /* the state of the blink bit at startup */ |
383 | ||
76ac1508 RS |
384 | /* Enable bright background colors. */ |
385 | static void | |
386 | bright_bg (void) | |
387 | { | |
388 | union REGS regs; | |
389 | ||
b36701cc RS |
390 | /* Remember the original state of the blink/bright-background bit. |
391 | It is stored at 0040:0065h in the BIOS data area. */ | |
392 | if (blink_bit == -1) | |
393 | blink_bit = (_farpeekb (_dos_ds, 0x465) & 0x20) == 0x20; | |
394 | ||
76ac1508 RS |
395 | regs.h.bl = 0; |
396 | regs.x.ax = 0x1003; | |
397 | int86 (0x10, ®s, ®s); | |
398 | } | |
399 | ||
b36701cc RS |
400 | /* Disable bright background colors (and enable blinking) if we found |
401 | the video system in that state at startup. */ | |
402 | static void | |
403 | maybe_enable_blinking (void) | |
404 | { | |
405 | if (blink_bit == 1) | |
406 | { | |
407 | union REGS regs; | |
408 | ||
409 | regs.h.bl = 1; | |
410 | regs.x.ax = 0x1003; | |
411 | int86 (0x10, ®s, ®s); | |
412 | } | |
413 | } | |
414 | ||
4a96d4d2 KH |
415 | /* Set the screen dimensions so that it can show no less than |
416 | ROWS x COLS frame. */ | |
48ffe371 | 417 | |
4a96d4d2 KH |
418 | void |
419 | dos_set_window_size (rows, cols) | |
420 | int *rows, *cols; | |
421 | { | |
422 | char video_name[30]; | |
423 | Lisp_Object video_mode; | |
424 | int video_mode_value; | |
425 | int have_vga = 0; | |
426 | union REGS regs; | |
427 | int current_rows = ScreenRows (), current_cols = ScreenCols (); | |
428 | ||
429 | if (*rows == current_rows && *cols == current_cols) | |
430 | return; | |
431 | ||
432 | /* Do we have a VGA? */ | |
433 | regs.x.ax = 0x1a00; | |
434 | int86 (0x10, ®s, ®s); | |
435 | if (regs.h.al == 0x1a && regs.h.bl > 5 && regs.h.bl < 13) | |
436 | have_vga = 1; | |
437 | ||
438 | mouse_off (); | |
439 | ||
48ffe371 | 440 | /* If the user specified a special video mode for these dimensions, |
4a96d4d2 KH |
441 | use that mode. */ |
442 | sprintf (video_name, "screen-dimensions-%dx%d", *rows, *cols); | |
443 | video_mode = XSYMBOL (Fintern_soft (build_string (video_name), | |
444 | Qnil))-> value; | |
445 | ||
446 | if (INTEGERP (video_mode) | |
447 | && (video_mode_value = XINT (video_mode)) > 0) | |
448 | { | |
449 | regs.x.ax = video_mode_value; | |
450 | int86 (0x10, ®s, ®s); | |
48ffe371 RS |
451 | |
452 | if (have_mouse) | |
453 | { | |
454 | /* Must hardware-reset the mouse, or else it won't update | |
455 | its notion of screen dimensions for some non-standard | |
456 | video modes. This is *painfully* slow... */ | |
457 | regs.x.ax = 0; | |
458 | int86 (0x33, ®s, ®s); | |
459 | } | |
4a96d4d2 KH |
460 | } |
461 | ||
462 | /* Find one of the dimensions supported by standard EGA/VGA | |
463 | which gives us at least the required dimensions. */ | |
464 | ||
465 | #if __DJGPP__ > 1 | |
466 | ||
467 | else | |
468 | { | |
469 | static struct { | |
470 | int rows; | |
471 | int need_vga; | |
472 | } std_dimension[] = { | |
473 | {25, 0}, | |
474 | {28, 1}, | |
475 | {35, 0}, | |
476 | {40, 1}, | |
477 | {43, 0}, | |
478 | {50, 1} | |
479 | }; | |
480 | int i = 0; | |
481 | ||
482 | while (i < sizeof (std_dimension) / sizeof (std_dimension[0])) | |
483 | { | |
484 | if (std_dimension[i].need_vga <= have_vga | |
485 | && std_dimension[i].rows >= *rows) | |
486 | { | |
487 | if (std_dimension[i].rows != current_rows | |
488 | || *cols != current_cols) | |
48ffe371 | 489 | _set_screen_lines (std_dimension[i].rows); |
4a96d4d2 KH |
490 | break; |
491 | } | |
48ffe371 | 492 | i++; |
4a96d4d2 KH |
493 | } |
494 | } | |
495 | ||
496 | #else /* not __DJGPP__ > 1 */ | |
497 | ||
498 | else if (*rows <= 25) | |
499 | { | |
500 | if (current_rows != 25 || current_cols != 80) | |
501 | { | |
502 | regs.x.ax = 3; | |
503 | int86 (0x10, ®s, ®s); | |
504 | regs.x.ax = 0x1101; | |
505 | regs.h.bl = 0; | |
506 | int86 (0x10, ®s, ®s); | |
507 | regs.x.ax = 0x1200; | |
508 | regs.h.bl = 32; | |
509 | int86 (0x10, ®s, ®s); | |
510 | regs.x.ax = 3; | |
511 | int86 (0x10, ®s, ®s); | |
512 | } | |
513 | } | |
514 | else if (*rows <= 50) | |
515 | if (have_vga && (current_rows != 50 || current_cols != 80) | |
516 | || *rows <= 43 && (current_rows != 43 || current_cols != 80)) | |
517 | { | |
518 | regs.x.ax = 3; | |
519 | int86 (0x10, ®s, ®s); | |
520 | regs.x.ax = 0x1112; | |
521 | regs.h.bl = 0; | |
522 | int86 (0x10, ®s, ®s); | |
523 | regs.x.ax = 0x1200; | |
524 | regs.h.bl = 32; | |
525 | int86 (0x10, ®s, ®s); | |
526 | regs.x.ax = 0x0100; | |
527 | regs.x.cx = 7; | |
528 | int86 (0x10, ®s, ®s); | |
529 | } | |
530 | #endif /* not __DJGPP__ > 1 */ | |
531 | ||
532 | if (have_mouse) | |
533 | { | |
4a96d4d2 KH |
534 | mouse_init (); |
535 | mouse_on (); | |
536 | } | |
537 | ||
538 | /* Tell the caller what dimensions have been REALLY set. */ | |
539 | *rows = ScreenRows (); | |
540 | *cols = ScreenCols (); | |
76ac1508 RS |
541 | |
542 | /* Enable bright background colors. */ | |
543 | bright_bg (); | |
4a96d4d2 KH |
544 | } |
545 | ||
48ffe371 RS |
546 | /* If we write a character in the position where the mouse is, |
547 | the mouse cursor may need to be refreshed. */ | |
09e2ac30 RS |
548 | |
549 | static void | |
f32d4091 | 550 | mouse_off_maybe () |
09e2ac30 | 551 | { |
f32d4091 KS |
552 | int x, y; |
553 | ||
554 | if (!mouse_visible) | |
555 | return; | |
556 | ||
557 | mouse_get_xy (&x, &y); | |
558 | if (y != new_pos_Y || x < new_pos_X) | |
559 | return; | |
560 | ||
561 | mouse_off (); | |
562 | } | |
563 | ||
564 | static | |
565 | IT_ring_bell () | |
566 | { | |
567 | if (visible_bell) | |
aee81730 | 568 | { |
f32d4091 KS |
569 | mouse_off (); |
570 | ScreenVisualBell (); | |
aee81730 | 571 | } |
f32d4091 | 572 | else |
3635be47 RS |
573 | { |
574 | union REGS inregs, outregs; | |
575 | inregs.h.ah = 2; | |
576 | inregs.h.dl = 7; | |
577 | intdos (&inregs, &outregs); | |
578 | } | |
09e2ac30 RS |
579 | } |
580 | ||
f32d4091 KS |
581 | static void |
582 | IT_set_face (int face) | |
583 | { | |
584 | struct face *fp; | |
585 | extern struct face *intern_face (/* FRAME_PTR, struct face * */); | |
586 | ||
587 | if (face == 1 || (face == 0 && highlight)) | |
588 | fp = FRAME_MODE_LINE_FACE (foo); | |
589 | else if (face <= 0 || face >= FRAME_N_COMPUTED_FACES (foo)) | |
590 | fp = FRAME_DEFAULT_FACE (foo); | |
591 | else | |
592 | fp = intern_face (selected_frame, FRAME_COMPUTED_FACES (foo)[face]); | |
593 | if (termscript) | |
5d7e8345 RS |
594 | fprintf (termscript, "<FACE %d: %d/%d>", |
595 | face, FACE_FOREGROUND (fp), FACE_BACKGROUND (fp)); | |
f32d4091 KS |
596 | screen_face = face; |
597 | ScreenAttrib = (FACE_BACKGROUND (fp) << 4) | FACE_FOREGROUND (fp); | |
598 | } | |
599 | ||
600 | static | |
601 | IT_write_glyphs (GLYPH *str, int len) | |
602 | { | |
603 | int newface; | |
604 | int ch, l = len; | |
605 | unsigned char *buf, *bp; | |
87485d6f | 606 | |
f32d4091 | 607 | if (len == 0) return; |
aee81730 | 608 | |
f32d4091 | 609 | buf = bp = alloca (len * 2); |
aee81730 | 610 | |
f32d4091 | 611 | while (--l >= 0) |
aee81730 | 612 | { |
f32d4091 KS |
613 | newface = FAST_GLYPH_FACE (*str); |
614 | if (newface != screen_face) | |
615 | IT_set_face (newface); | |
616 | ch = FAST_GLYPH_CHAR (*str); | |
617 | *bp++ = (unsigned char)ch; | |
618 | *bp++ = ScreenAttrib; | |
619 | ||
620 | if (termscript) | |
621 | fputc (ch, termscript); | |
622 | str++; | |
aee81730 RS |
623 | } |
624 | ||
f32d4091 KS |
625 | mouse_off_maybe (); |
626 | dosmemput (buf, 2 * len, | |
627 | (int)ScreenPrimary + 2 * (new_pos_X + screen_size_X * new_pos_Y)); | |
628 | new_pos_X += len; | |
629 | } | |
aee81730 | 630 | |
f32d4091 KS |
631 | static |
632 | IT_clear_end_of_line (first_unused) | |
633 | { | |
634 | char *spaces, *sp; | |
635 | int i, j; | |
636 | ||
637 | IT_set_face (0); | |
638 | if (termscript) | |
639 | fprintf (termscript, "<CLR:EOL>"); | |
640 | i = (j = screen_size_X - new_pos_X) * 2; | |
641 | spaces = sp = alloca (i); | |
aee81730 | 642 | |
f32d4091 | 643 | while (--j >= 0) |
aee81730 | 644 | { |
f32d4091 KS |
645 | *sp++ = ' '; |
646 | *sp++ = ScreenAttrib; | |
aee81730 RS |
647 | } |
648 | ||
f32d4091 KS |
649 | mouse_off_maybe (); |
650 | dosmemput (spaces, i, | |
651 | (int)ScreenPrimary + 2 * (new_pos_X + screen_size_X * new_pos_Y)); | |
aee81730 RS |
652 | } |
653 | ||
f32d4091 KS |
654 | static |
655 | IT_clear_screen (void) | |
656 | { | |
657 | if (termscript) | |
658 | fprintf (termscript, "<CLR:SCR>"); | |
659 | IT_set_face (0); | |
660 | mouse_off (); | |
661 | ScreenClear (); | |
662 | new_pos_X = new_pos_Y = 0; | |
663 | } | |
664 | ||
665 | static | |
666 | IT_clear_to_end (void) | |
667 | { | |
668 | if (termscript) | |
669 | fprintf (termscript, "<CLR:EOS>"); | |
670 | ||
671 | while (new_pos_Y < screen_size_Y) { | |
672 | new_pos_X = 0; | |
673 | IT_clear_end_of_line (0); | |
674 | new_pos_Y++; | |
675 | } | |
676 | } | |
677 | ||
678 | static | |
679 | IT_cursor_to (int y, int x) | |
680 | { | |
681 | if (termscript) | |
682 | fprintf (termscript, "\n<XY=%dx%d>", x, y); | |
683 | new_pos_X = x; | |
684 | new_pos_Y = y; | |
685 | } | |
686 | ||
fc171623 KH |
687 | static int cursor_cleared; |
688 | ||
689 | static | |
690 | IT_display_cursor (int on) | |
691 | { | |
692 | if (on && cursor_cleared) | |
693 | { | |
694 | ScreenSetCursor (current_pos_Y, current_pos_X); | |
695 | cursor_cleared = 0; | |
696 | } | |
697 | else if (!on && !cursor_cleared) | |
698 | { | |
699 | ScreenSetCursor (-1, -1); | |
700 | cursor_cleared = 1; | |
701 | } | |
702 | } | |
703 | ||
704 | /* Emacs calls cursor-movement functions a lot when it updates the | |
705 | display (probably a legacy of old terminals where you cannot | |
706 | update a screen line without first moving the cursor there). | |
707 | However, cursor movement is expensive on MSDOS (it calls a slow | |
708 | BIOS function and requires 2 mode switches), while actual screen | |
709 | updates access the video memory directly and don't depend on | |
710 | cursor position. To avoid slowing down the redisplay, we cheat: | |
711 | all functions that move the cursor only set internal variables | |
712 | which record the cursor position, whereas the cursor is only | |
713 | moved to its final position whenever screen update is complete. | |
714 | ||
715 | `IT_cmgoto' is called from the keyboard reading loop and when the | |
716 | frame update is complete. This means that we are ready for user | |
717 | input, so we update the cursor position to show where the point is, | |
718 | and also make the mouse pointer visible. | |
719 | ||
720 | Special treatment is required when the cursor is in the echo area, | |
721 | to put the cursor at the end of the text displayed there. */ | |
722 | ||
723 | static | |
724 | IT_cmgoto (f) | |
725 | FRAME_PTR f; | |
726 | { | |
727 | /* Only set the cursor to where it should be if the display is | |
728 | already in sync with the window contents. */ | |
729 | int update_cursor_pos = MODIFF == unchanged_modified; | |
730 | ||
731 | /* If we are in the echo area, put the cursor at the end of text. */ | |
732 | if (!update_cursor_pos | |
733 | && XFASTINT (XWINDOW (FRAME_MINIBUF_WINDOW (f))->top) <= new_pos_Y) | |
734 | { | |
735 | new_pos_X = FRAME_DESIRED_GLYPHS (f)->used[new_pos_Y]; | |
fc171623 KH |
736 | update_cursor_pos = 1; |
737 | } | |
738 | ||
739 | if (update_cursor_pos | |
740 | && (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y)) | |
741 | { | |
742 | ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X); | |
743 | if (termscript) | |
744 | fprintf (termscript, "\n<CURSOR:%dx%d>", current_pos_X, current_pos_Y); | |
745 | } | |
746 | ||
747 | /* Maybe cursor is invisible, so make it visible. */ | |
748 | IT_display_cursor (1); | |
749 | ||
750 | /* Mouse pointer should be always visible if we are waiting for | |
751 | keyboard input. */ | |
752 | if (!mouse_visible) | |
753 | mouse_on (); | |
754 | } | |
755 | ||
f32d4091 KS |
756 | static |
757 | IT_reassert_line_highlight (new, vpos) | |
758 | int new, vpos; | |
759 | { | |
760 | highlight = new; | |
761 | IT_set_face (0); /* To possibly clear the highlighting. */ | |
762 | } | |
763 | ||
764 | static | |
765 | IT_change_line_highlight (new_highlight, vpos, first_unused_hpos) | |
1b94449f | 766 | { |
f32d4091 KS |
767 | highlight = new_highlight; |
768 | IT_set_face (0); /* To possibly clear the highlighting. */ | |
769 | IT_cursor_to (vpos, 0); | |
770 | IT_clear_end_of_line (first_unused_hpos); | |
771 | } | |
772 | ||
773 | static | |
774 | IT_update_begin () | |
775 | { | |
776 | highlight = 0; | |
777 | IT_set_face (0); /* To possibly clear the highlighting. */ | |
778 | screen_face = -1; | |
779 | } | |
780 | ||
781 | static | |
782 | IT_update_end () | |
783 | { | |
784 | } | |
1b94449f | 785 | |
3bb1f22f RS |
786 | /* This was more or less copied from xterm.c |
787 | ||
788 | Nowadays, the corresponding function under X is `x_set_menu_bar_lines_1' | |
789 | on xfns.c */ | |
48ffe371 | 790 | |
f32d4091 KS |
791 | static void |
792 | IT_set_menu_bar_lines (window, n) | |
48ffe371 RS |
793 | Lisp_Object window; |
794 | int n; | |
f32d4091 KS |
795 | { |
796 | struct window *w = XWINDOW (window); | |
797 | ||
9a166e40 | 798 | XSETFASTINT (w->last_modified, 0); |
3280297a | 799 | XSETFASTINT (w->last_overlay_modified, 0); |
f32d4091 KS |
800 | XSETFASTINT (w->top, XFASTINT (w->top) + n); |
801 | XSETFASTINT (w->height, XFASTINT (w->height) - n); | |
802 | ||
803 | /* Handle just the top child in a vertical split. */ | |
804 | if (!NILP (w->vchild)) | |
805 | IT_set_menu_bar_lines (w->vchild, n); | |
806 | ||
807 | /* Adjust all children in a horizontal split. */ | |
808 | for (window = w->hchild; !NILP (window); window = w->next) | |
1b94449f | 809 | { |
f32d4091 KS |
810 | w = XWINDOW (window); |
811 | IT_set_menu_bar_lines (window, n); | |
aee81730 | 812 | } |
f32d4091 KS |
813 | } |
814 | ||
3bb1f22f RS |
815 | /* This was copied from xfns.c */ |
816 | ||
e9fbf17c RS |
817 | Lisp_Object Qbackground_color; |
818 | Lisp_Object Qforeground_color; | |
819 | ||
3bb1f22f RS |
820 | void |
821 | x_set_menu_bar_lines (f, value, oldval) | |
822 | struct frame *f; | |
823 | Lisp_Object value, oldval; | |
824 | { | |
825 | int nlines; | |
826 | int olines = FRAME_MENU_BAR_LINES (f); | |
827 | ||
828 | /* Right now, menu bars don't work properly in minibuf-only frames; | |
829 | most of the commands try to apply themselves to the minibuffer | |
830 | frame itslef, and get an error because you can't switch buffers | |
831 | in or split the minibuffer window. */ | |
832 | if (FRAME_MINIBUF_ONLY_P (f)) | |
833 | return; | |
834 | ||
835 | if (INTEGERP (value)) | |
836 | nlines = XINT (value); | |
837 | else | |
838 | nlines = 0; | |
839 | ||
840 | FRAME_MENU_BAR_LINES (f) = nlines; | |
841 | IT_set_menu_bar_lines (f->root_window, nlines - olines); | |
842 | } | |
843 | ||
48ffe371 RS |
844 | /* IT_set_terminal_modes is called when emacs is started, |
845 | resumed, and whenever the screen is redrawn! */ | |
f32d4091 KS |
846 | |
847 | static | |
848 | IT_set_terminal_modes (void) | |
849 | { | |
aee81730 | 850 | if (termscript) |
f32d4091 KS |
851 | fprintf (termscript, "\n<SET_TERM>"); |
852 | highlight = 0; | |
853 | ||
854 | screen_size_X = ScreenCols (); | |
855 | screen_size_Y = ScreenRows (); | |
856 | screen_size = screen_size_X * screen_size_Y; | |
aee81730 | 857 | |
f32d4091 KS |
858 | new_pos_X = new_pos_Y = 0; |
859 | current_pos_X = current_pos_Y = -1; | |
860 | ||
861 | if (term_setup_done) | |
862 | return; | |
863 | term_setup_done = 1; | |
aee81730 | 864 | |
f32d4091 KS |
865 | startup_screen_size_X = screen_size_X; |
866 | startup_screen_size_Y = screen_size_Y; | |
c9adab25 | 867 | startup_screen_attrib = ScreenAttrib; |
f32d4091 KS |
868 | |
869 | ScreenGetCursor (&startup_pos_Y, &startup_pos_X); | |
870 | ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2)); | |
871 | ||
872 | if (termscript) | |
c9adab25 KH |
873 | fprintf (termscript, "<SCREEN SAVED (dimensions=%dx%d)>\n", |
874 | screen_size_X, screen_size_Y); | |
76ac1508 RS |
875 | |
876 | bright_bg (); | |
f32d4091 KS |
877 | } |
878 | ||
48ffe371 RS |
879 | /* IT_reset_terminal_modes is called when emacs is |
880 | suspended or killed. */ | |
f32d4091 KS |
881 | |
882 | static | |
883 | IT_reset_terminal_modes (void) | |
884 | { | |
c9adab25 KH |
885 | int display_row_start = (int) ScreenPrimary; |
886 | int saved_row_len = startup_screen_size_X * 2; | |
887 | int update_row_len = ScreenCols () * 2; | |
888 | int current_rows = ScreenRows (); | |
889 | int to_next_row = update_row_len; | |
890 | unsigned char *saved_row = startup_screen_buffer; | |
891 | int cursor_pos_X = ScreenCols () - 1; | |
892 | int cursor_pos_Y = ScreenRows () - 1; | |
893 | ||
f32d4091 | 894 | if (termscript) |
5063b150 | 895 | fprintf (termscript, "\n<RESET_TERM>"); |
f32d4091 KS |
896 | |
897 | highlight = 0; | |
898 | ||
899 | if (!term_setup_done) | |
900 | return; | |
901 | ||
c9adab25 | 902 | mouse_off (); |
b36701cc RS |
903 | |
904 | /* Leave the video system in the same state as we found it, | |
905 | as far as the blink/bright-background bit is concerned. */ | |
906 | maybe_enable_blinking (); | |
c9adab25 KH |
907 | |
908 | /* We have a situation here. | |
909 | We cannot just do ScreenUpdate(startup_screen_buffer) because | |
910 | the luser could have changed screen dimensions inside Emacs | |
911 | and failed (or didn't want) to restore them before killing | |
912 | Emacs. ScreenUpdate() uses the *current* screen dimensions and | |
913 | thus will happily use memory outside what was allocated for | |
914 | `startup_screen_buffer'. | |
915 | Thus we only restore as much as the current screen dimensions | |
916 | can hold, and clear the rest (if the saved screen is smaller than | |
917 | the current) with the color attribute saved at startup. The cursor | |
918 | is also restored within the visible dimensions. */ | |
919 | ||
920 | ScreenAttrib = startup_screen_attrib; | |
921 | ScreenClear (); | |
922 | ||
923 | if (update_row_len > saved_row_len) | |
924 | update_row_len = saved_row_len; | |
925 | if (current_rows > startup_screen_size_Y) | |
926 | current_rows = startup_screen_size_Y; | |
f32d4091 KS |
927 | |
928 | if (termscript) | |
c9adab25 KH |
929 | fprintf (termscript, "<SCREEN RESTORED (dimensions=%dx%d)>\n", |
930 | update_row_len / 2, current_rows); | |
931 | ||
932 | while (current_rows--) | |
933 | { | |
934 | dosmemput (saved_row, update_row_len, display_row_start); | |
935 | saved_row += saved_row_len; | |
936 | display_row_start += to_next_row; | |
937 | } | |
938 | if (startup_pos_X < cursor_pos_X) | |
939 | cursor_pos_X = startup_pos_X; | |
940 | if (startup_pos_Y < cursor_pos_Y) | |
941 | cursor_pos_Y = startup_pos_Y; | |
942 | ||
943 | ScreenSetCursor (cursor_pos_Y, cursor_pos_X); | |
944 | xfree (startup_screen_buffer); | |
f32d4091 KS |
945 | |
946 | term_setup_done = 0; | |
947 | } | |
948 | ||
949 | static | |
950 | IT_set_terminal_window (void) | |
951 | { | |
952 | } | |
953 | ||
954 | void | |
3bb1f22f RS |
955 | IT_set_frame_parameters (f, alist) |
956 | FRAME_PTR f; | |
f32d4091 KS |
957 | Lisp_Object alist; |
958 | { | |
959 | Lisp_Object tail; | |
db722735 RS |
960 | int length = XINT (Flength (alist)); |
961 | int i; | |
962 | Lisp_Object *parms | |
963 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
964 | Lisp_Object *values | |
965 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
f32d4091 KS |
966 | int redraw; |
967 | extern unsigned long load_color (); | |
f32d4091 KS |
968 | |
969 | redraw = 0; | |
db722735 RS |
970 | |
971 | /* Extract parm names and values into those vectors. */ | |
972 | i = 0; | |
f32d4091 KS |
973 | for (tail = alist; CONSP (tail); tail = Fcdr (tail)) |
974 | { | |
db722735 | 975 | Lisp_Object elt; |
f32d4091 KS |
976 | |
977 | elt = Fcar (tail); | |
db722735 RS |
978 | parms[i] = Fcar (elt); |
979 | CHECK_SYMBOL (parms[i], 1); | |
980 | values[i] = Fcdr (elt); | |
981 | i++; | |
982 | } | |
983 | ||
984 | ||
985 | /* Now process them in reverse of specified order. */ | |
986 | for (i--; i >= 0; i--) | |
987 | { | |
988 | Lisp_Object prop = parms[i]; | |
989 | Lisp_Object val = values[i]; | |
f32d4091 | 990 | |
4e825084 | 991 | if (EQ (prop, Qforeground_color)) |
f32d4091 KS |
992 | { |
993 | unsigned long new_color = load_color (f, val); | |
994 | if (new_color != ~0) | |
995 | { | |
996 | FRAME_FOREGROUND_PIXEL (f) = new_color; | |
997 | redraw = 1; | |
76ac1508 | 998 | if (termscript) |
a7cf9151 | 999 | fprintf (termscript, "<FGCOLOR %lu>\n", new_color); |
f32d4091 KS |
1000 | } |
1001 | } | |
4e825084 | 1002 | else if (EQ (prop, Qbackground_color)) |
f32d4091 KS |
1003 | { |
1004 | unsigned long new_color = load_color (f, val); | |
1005 | if (new_color != ~0) | |
1006 | { | |
76ac1508 | 1007 | FRAME_BACKGROUND_PIXEL (f) = new_color; |
f32d4091 | 1008 | redraw = 1; |
76ac1508 | 1009 | if (termscript) |
a7cf9151 | 1010 | fprintf (termscript, "<BGCOLOR %lu>\n", new_color); |
f32d4091 KS |
1011 | } |
1012 | } | |
1013 | else if (EQ (prop, intern ("menu-bar-lines"))) | |
3bb1f22f | 1014 | x_set_menu_bar_lines (f, val, 0); |
db722735 RS |
1015 | |
1016 | store_frame_param (f, prop, val); | |
1017 | ||
f32d4091 KS |
1018 | } |
1019 | ||
1020 | if (redraw) | |
1021 | { | |
a7cf9151 EZ |
1022 | extern void recompute_basic_faces (FRAME_PTR); |
1023 | extern void redraw_frame (FRAME_PTR); | |
1024 | ||
f32d4091 | 1025 | recompute_basic_faces (f); |
3bb1f22f RS |
1026 | if (f == selected_frame) |
1027 | redraw_frame (f); | |
f32d4091 KS |
1028 | } |
1029 | } | |
1030 | ||
a7cf9151 EZ |
1031 | extern void init_frame_faces (FRAME_PTR); |
1032 | ||
f32d4091 KS |
1033 | #endif /* !HAVE_X_WINDOWS */ |
1034 | ||
1035 | ||
48ffe371 RS |
1036 | /* Do we need the internal terminal? */ |
1037 | ||
f32d4091 KS |
1038 | void |
1039 | internal_terminal_init () | |
1040 | { | |
1041 | char *term = getenv ("TERM"); | |
1042 | char *colors; | |
1043 | ||
1044 | #ifdef HAVE_X_WINDOWS | |
1045 | if (!inhibit_window_system) | |
1046 | return; | |
1047 | #endif | |
1048 | ||
1049 | internal_terminal | |
1050 | = (!noninteractive) && term && !strcmp (term, "internal"); | |
1051 | ||
1052 | if (getenv ("EMACSTEST")) | |
5063b150 | 1053 | termscript = fopen (getenv ("EMACSTEST"), "wt"); |
f32d4091 KS |
1054 | |
1055 | #ifndef HAVE_X_WINDOWS | |
1056 | if (!internal_terminal || inhibit_window_system) | |
1057 | { | |
3bb1f22f | 1058 | selected_frame->output_method = output_termcap; |
f32d4091 KS |
1059 | return; |
1060 | } | |
1061 | ||
1062 | Vwindow_system = intern ("pc"); | |
1063 | Vwindow_system_version = make_number (1); | |
1064 | ||
1065 | bzero (&the_only_x_display, sizeof the_only_x_display); | |
1066 | the_only_x_display.background_pixel = 7; /* White */ | |
1067 | the_only_x_display.foreground_pixel = 0; /* Black */ | |
76ac1508 | 1068 | bright_bg (); |
5063b150 | 1069 | colors = getenv ("EMACSCOLORS"); |
f32d4091 KS |
1070 | if (colors && strlen (colors) >= 2) |
1071 | { | |
76ac1508 RS |
1072 | /* The colors use 4 bits each (we enable bright background). */ |
1073 | if (isdigit (colors[0])) | |
1074 | colors[0] -= '0'; | |
1075 | else if (isxdigit (colors[0])) | |
1076 | colors[0] -= (isupper (colors[0]) ? 'A' : 'a') - 10; | |
1bd7b2c7 RS |
1077 | if (colors[0] >= 0 && colors[0] < 16) |
1078 | the_only_x_display.foreground_pixel = colors[0]; | |
76ac1508 RS |
1079 | if (isdigit (colors[1])) |
1080 | colors[1] -= '0'; | |
1081 | else if (isxdigit (colors[1])) | |
1082 | colors[1] -= (isupper (colors[1]) ? 'A' : 'a') - 10; | |
1083 | if (colors[1] >= 0 && colors[1] < 16) | |
1bd7b2c7 | 1084 | the_only_x_display.background_pixel = colors[1]; |
f32d4091 KS |
1085 | } |
1086 | the_only_x_display.line_height = 1; | |
64ec6a02 | 1087 | the_only_x_display.font = (XFontStruct *)1; /* must *not* be zero */ |
f32d4091 | 1088 | |
3bb1f22f | 1089 | init_frame_faces (selected_frame); |
f32d4091 KS |
1090 | |
1091 | ring_bell_hook = IT_ring_bell; | |
1092 | write_glyphs_hook = IT_write_glyphs; | |
1093 | cursor_to_hook = raw_cursor_to_hook = IT_cursor_to; | |
1094 | clear_to_end_hook = IT_clear_to_end; | |
1095 | clear_end_of_line_hook = IT_clear_end_of_line; | |
1096 | clear_frame_hook = IT_clear_screen; | |
1097 | change_line_highlight_hook = IT_change_line_highlight; | |
1098 | update_begin_hook = IT_update_begin; | |
1099 | update_end_hook = IT_update_end; | |
1100 | reassert_line_highlight_hook = IT_reassert_line_highlight; | |
fc171623 | 1101 | frame_up_to_date_hook = IT_cmgoto; /* position cursor when update is done */ |
f32d4091 KS |
1102 | |
1103 | /* These hooks are called by term.c without being checked. */ | |
1104 | set_terminal_modes_hook = IT_set_terminal_modes; | |
1105 | reset_terminal_modes_hook = IT_reset_terminal_modes; | |
1106 | set_terminal_window_hook = IT_set_terminal_window; | |
1107 | #endif | |
1108 | } | |
1109 | ||
1110 | dos_get_saved_screen (screen, rows, cols) | |
1111 | char **screen; | |
1112 | int *rows; | |
1113 | int *cols; | |
1114 | { | |
1115 | #ifndef HAVE_X_WINDOWS | |
1116 | *screen = startup_screen_buffer; | |
1117 | *cols = startup_screen_size_X; | |
1118 | *rows = startup_screen_size_Y; | |
1119 | return 1; | |
1120 | #else | |
1121 | return 0; | |
1122 | #endif | |
1123 | } | |
3bb1f22f RS |
1124 | |
1125 | #ifndef HAVE_X_WINDOWS | |
1126 | ||
1127 | /* We are not X, but we can emulate it well enough for our needs... */ | |
1128 | void | |
1129 | check_x (void) | |
1130 | { | |
1131 | if (! FRAME_MSDOS_P (selected_frame)) | |
1132 | error ("Not running under a windows system"); | |
1133 | } | |
1134 | ||
1135 | #endif | |
1136 | ||
5063b150 | 1137 | \f |
f32d4091 KS |
1138 | /* ----------------------- Keyboard control ---------------------- |
1139 | * | |
1140 | * Keymaps reflect the following keyboard layout: | |
1141 | * | |
1142 | * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS | |
1143 | * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41) | |
1144 | * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET | |
1145 | * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT | |
1146 | * SPACE | |
1147 | */ | |
1148 | ||
1149 | static int extended_kbd; /* 101 (102) keyboard present. */ | |
1150 | ||
1151 | struct dos_keyboard_map | |
1152 | { | |
1153 | char *unshifted; | |
1154 | char *shifted; | |
1155 | char *alt_gr; | |
1156 | }; | |
1157 | ||
1158 | ||
1159 | static struct dos_keyboard_map us_keyboard = { | |
1160 | /* 0 1 2 3 4 5 */ | |
1161 | /* 01234567890123456789012345678901234567890 12345678901234 */ | |
1162 | "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ", | |
1163 | /* 0123456789012345678901234567890123456789 012345678901234 */ | |
1164 | "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ", | |
1165 | 0 /* no Alt-Gr key */ | |
1166 | }; | |
1167 | ||
1168 | static struct dos_keyboard_map fr_keyboard = { | |
1169 | /* 0 1 2 3 4 5 */ | |
1170 | /* 012 3456789012345678901234567890123456789012345678901234 */ | |
1171 |