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c6a6499f | 1 | /* MS-DOS specific C utilities. -*- coding: raw-text -*- |
95df8112 | 2 | |
ab422c4d | 3 | Copyright (C) 1993-1997, 1999-2013 Free Software Foundation, Inc. |
1b94449f RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
1b94449f | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
1b94449f RS |
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 | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
1b94449f | 19 | |
9da6e765 | 20 | /* Contributed by Morten Welinder */ |
f32d4091 | 21 | /* New display, keyboard, and mouse control by Kim F. Storm */ |
9da6e765 | 22 | |
1b94449f RS |
23 | /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */ |
24 | ||
48984716 | 25 | #include <config.h> |
1b94449f RS |
26 | |
27 | #ifdef MSDOS | |
d7306fe6 | 28 | #include <setjmp.h> |
1b94449f RS |
29 | #include "lisp.h" |
30 | #include <stdio.h> | |
06b1ea13 | 31 | #include <time.h> |
1b94449f RS |
32 | #include <sys/param.h> |
33 | #include <sys/time.h> | |
e3ac1281 | 34 | /* gettime and settime in dos.h clash with their namesakes from |
0d23c240 EZ |
35 | gnulib, so we move out of our way the prototypes in dos.h. */ |
36 | #define gettime dos_h_gettime_ | |
37 | #define settime dos_h_settime_ | |
1b94449f | 38 | #include <dos.h> |
0d23c240 EZ |
39 | #undef gettime |
40 | #undef settime | |
d21e67b5 RS |
41 | #include <errno.h> |
42 | #include <sys/stat.h> /* for _fixpath */ | |
a7cf9151 | 43 | #include <unistd.h> /* for chdir, dup, dup2, etc. */ |
bf794306 | 44 | #include <dir.h> /* for getdisk */ |
affa509c | 45 | #pragma pack(0) /* dir.h does a pack(4), which isn't GCC's default */ |
1bd7b2c7 | 46 | #include <fcntl.h> |
a7cf9151 | 47 | #include <io.h> /* for setmode */ |
fc171623 KH |
48 | #include <dpmi.h> /* for __dpmi_xxx stuff */ |
49 | #include <sys/farptr.h> /* for _farsetsel, _farnspokeb */ | |
d21e67b5 | 50 | #include <libc/dosio.h> /* for _USE_LFN */ |
a7cf9151 | 51 | #include <conio.h> /* for cputs */ |
1bd7b2c7 | 52 | |
1b94449f RS |
53 | #include "msdos.h" |
54 | #include "systime.h" | |
3e1944a3 | 55 | #include "frame.h" |
1b94449f | 56 | #include "termhooks.h" |
aa9ce936 | 57 | #include "termchar.h" |
87485d6f | 58 | #include "dispextern.h" |
c77f6f1b | 59 | #include "dosfns.h" |
87485d6f | 60 | #include "termopts.h" |
83be827a | 61 | #include "character.h" |
aa9ce936 EZ |
62 | #include "coding.h" |
63 | #include "disptab.h" | |
87485d6f | 64 | #include "window.h" |
fc171623 KH |
65 | #include "buffer.h" |
66 | #include "commands.h" | |
41ad069b | 67 | #include "blockinput.h" |
97dd288b | 68 | #include "keyboard.h" |
6b61353c | 69 | #include "intervals.h" |
1b94449f RS |
70 | #include <go32.h> |
71 | #include <pc.h> | |
72 | #include <ctype.h> | |
73 | /* #include <process.h> */ | |
891ef8f7 EZ |
74 | /* Damn that local process.h! Instead we can define P_WAIT and |
75 | spawnve ourselves. */ | |
1b94449f | 76 | #define P_WAIT 1 |
891ef8f7 | 77 | extern int spawnve (int, const char *, char *const [], char *const []); |
1b94449f | 78 | |
d21e67b5 RS |
79 | #ifndef _USE_LFN |
80 | #define _USE_LFN 0 | |
81 | #endif | |
82 | ||
b36701cc RS |
83 | #ifndef _dos_ds |
84 | #define _dos_ds _go32_info_block.selector_for_linear_memory | |
85 | #endif | |
86 | ||
8748735b | 87 | #include <signal.h> |
417a04bb | 88 | #include "syssignal.h" |
8748735b | 89 | |
7c106b1e EZ |
90 | #include "careadlinkat.h" |
91 | #include "allocator.h" | |
92 | ||
1bd7b2c7 RS |
93 | #ifndef SYSTEM_MALLOC |
94 | ||
95 | #ifdef GNU_MALLOC | |
96 | ||
97 | /* If other `malloc' than ours is used, force our `sbrk' behave like | |
98 | Unix programs expect (resize memory blocks to keep them contiguous). | |
99 | If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory, | |
100 | because that's what `gmalloc' expects to get. */ | |
101 | #include <crt0.h> | |
102 | ||
103 | #ifdef REL_ALLOC | |
104 | int _crt0_startup_flags = _CRT0_FLAG_UNIX_SBRK; | |
105 | #else /* not REL_ALLOC */ | |
106 | int _crt0_startup_flags = (_CRT0_FLAG_UNIX_SBRK | _CRT0_FLAG_FILL_SBRK_MEMORY); | |
107 | #endif /* not REL_ALLOC */ | |
108 | #endif /* GNU_MALLOC */ | |
109 | ||
110 | #endif /* not SYSTEM_MALLOC */ | |
aee81730 | 111 | |
0d23c240 | 112 | /* Return the current timestamp in milliseconds since midnight. */ |
aee81730 | 113 | static unsigned long |
3a8ce822 | 114 | event_timestamp (void) |
aee81730 | 115 | { |
0d23c240 | 116 | struct timespec t; |
aee81730 | 117 | unsigned long s; |
56e19ec4 | 118 | |
aee81730 | 119 | gettime (&t); |
0d23c240 EZ |
120 | s = t.tv_sec; |
121 | s %= 86400; | |
aee81730 | 122 | s *= 1000; |
0d23c240 | 123 | s += t.tv_nsec * 1000000; |
56e19ec4 | 124 | |
aee81730 RS |
125 | return s; |
126 | } | |
127 | ||
f32d4091 KS |
128 | \f |
129 | /* ------------------------ Mouse control --------------------------- | |
130 | * | |
131 | * Coordinates are in screen positions and zero based. | |
132 | * Mouse buttons are numbered from left to right and also zero based. | |
133 | */ | |
1b94449f | 134 | |
0c3cfc51 EZ |
135 | /* This used to be in termhooks.h, but mainstream Emacs code no longer |
136 | uses it, and it was removed... */ | |
137 | #define NUM_MOUSE_BUTTONS (5) | |
138 | ||
f32d4091 KS |
139 | int have_mouse; /* 0: no, 1: enabled, -1: disabled */ |
140 | static int mouse_visible; | |
1b94449f | 141 | |
f32d4091 KS |
142 | static int mouse_last_x; |
143 | static int mouse_last_y; | |
1b94449f | 144 | |
f32d4091 KS |
145 | static int mouse_button_translate[NUM_MOUSE_BUTTONS]; |
146 | static int mouse_button_count; | |
1b94449f | 147 | |
f32d4091 | 148 | void |
3a8ce822 | 149 | mouse_on (void) |
1b94449f | 150 | { |
1b94449f | 151 | union REGS regs; |
1b94449f | 152 | |
f32d4091 | 153 | if (have_mouse > 0 && !mouse_visible) |
1b94449f | 154 | { |
3e1944a3 EZ |
155 | struct tty_display_info *tty = CURTTY (); |
156 | ||
157 | if (tty->termscript) | |
158 | fprintf (tty->termscript, "<M_ON>"); | |
f32d4091 KS |
159 | regs.x.ax = 0x0001; |
160 | int86 (0x33, ®s, ®s); | |
161 | mouse_visible = 1; | |
1b94449f | 162 | } |
1b94449f RS |
163 | } |
164 | ||
f32d4091 | 165 | void |
3a8ce822 | 166 | mouse_off (void) |
1b94449f | 167 | { |
f32d4091 | 168 | union REGS regs; |
1b94449f | 169 | |
f32d4091 | 170 | if (have_mouse > 0 && mouse_visible) |
1b94449f | 171 | { |
3e1944a3 EZ |
172 | struct tty_display_info *tty = CURTTY (); |
173 | ||
174 | if (tty->termscript) | |
175 | fprintf (tty->termscript, "<M_OFF>"); | |
f32d4091 KS |
176 | regs.x.ax = 0x0002; |
177 | int86 (0x33, ®s, ®s); | |
178 | mouse_visible = 0; | |
1b94449f | 179 | } |
1b94449f RS |
180 | } |
181 | ||
8f190436 EZ |
182 | static void |
183 | mouse_setup_buttons (int n_buttons) | |
184 | { | |
185 | if (n_buttons == 3) | |
186 | { | |
187 | mouse_button_count = 3; | |
188 | mouse_button_translate[0] = 0; /* Left */ | |
189 | mouse_button_translate[1] = 2; /* Middle */ | |
190 | mouse_button_translate[2] = 1; /* Right */ | |
191 | } | |
192 | else /* two, what else? */ | |
193 | { | |
194 | mouse_button_count = 2; | |
195 | mouse_button_translate[0] = 0; | |
196 | mouse_button_translate[1] = 1; | |
197 | } | |
198 | } | |
199 | ||
200 | DEFUN ("msdos-set-mouse-buttons", Fmsdos_set_mouse_buttons, Smsdos_set_mouse_buttons, | |
201 | 1, 1, "NSet number of mouse buttons to: ", | |
70da46c3 PJ |
202 | doc: /* Set the number of mouse buttons to use by Emacs. |
203 | This is useful with mice that report the number of buttons inconsistently, | |
204 | e.g., if the number of buttons is reported as 3, but Emacs only sees 2 of | |
205 | them. This happens with wheeled mice on Windows 9X, for example. */) | |
5842a27b | 206 | (Lisp_Object nbuttons) |
8f190436 | 207 | { |
e7522695 EZ |
208 | int n; |
209 | ||
b7826503 | 210 | CHECK_NUMBER (nbuttons); |
e7522695 EZ |
211 | n = XINT (nbuttons); |
212 | if (n < 2 || n > 3) | |
ebe061ca KS |
213 | xsignal2 (Qargs_out_of_range, |
214 | build_string ("only 2 or 3 mouse buttons are supported"), | |
215 | nbuttons); | |
e7522695 | 216 | mouse_setup_buttons (n); |
8f190436 EZ |
217 | return Qnil; |
218 | } | |
219 | ||
211c7152 EZ |
220 | static void |
221 | mouse_get_xy (int *x, int *y) | |
222 | { | |
223 | union REGS regs; | |
224 | ||
225 | regs.x.ax = 0x0003; | |
226 | int86 (0x33, ®s, ®s); | |
227 | *x = regs.x.cx / 8; | |
228 | *y = regs.x.dx / 8; | |
229 | } | |
230 | ||
f32d4091 | 231 | void |
3a8ce822 | 232 | mouse_moveto (int x, int y) |
1b94449f | 233 | { |
f32d4091 | 234 | union REGS regs; |
3e1944a3 | 235 | struct tty_display_info *tty = CURTTY (); |
1b94449f | 236 | |
3e1944a3 EZ |
237 | if (tty->termscript) |
238 | fprintf (tty->termscript, "<M_XY=%dx%d>", x, y); | |
f32d4091 KS |
239 | regs.x.ax = 0x0004; |
240 | mouse_last_x = regs.x.cx = x * 8; | |
241 | mouse_last_y = regs.x.dx = y * 8; | |
242 | int86 (0x33, ®s, ®s); | |
1b94449f RS |
243 | } |
244 | ||
f32d4091 | 245 | static int |
3a8ce822 | 246 | mouse_pressed (int b, int *xp, int *yp) |
1b94449f | 247 | { |
f32d4091 | 248 | union REGS regs; |
1b94449f | 249 | |
f32d4091 KS |
250 | if (b >= mouse_button_count) |
251 | return 0; | |
252 | regs.x.ax = 0x0005; | |
253 | regs.x.bx = mouse_button_translate[b]; | |
254 | int86 (0x33, ®s, ®s); | |
255 | if (regs.x.bx) | |
256 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
257 | return (regs.x.bx != 0); | |
1b94449f RS |
258 | } |
259 | ||
f32d4091 | 260 | static int |
3a8ce822 | 261 | mouse_released (int b, int *xp, int *yp) |
1b94449f RS |
262 | { |
263 | union REGS regs; | |
264 | ||
f32d4091 KS |
265 | if (b >= mouse_button_count) |
266 | return 0; | |
267 | regs.x.ax = 0x0006; | |
268 | regs.x.bx = mouse_button_translate[b]; | |
269 | int86 (0x33, ®s, ®s); | |
270 | if (regs.x.bx) | |
271 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
272 | return (regs.x.bx != 0); | |
1b94449f RS |
273 | } |
274 | ||
0c7bc1aa | 275 | static int |
3a8ce822 | 276 | mouse_button_depressed (int b, int *xp, int *yp) |
0c7bc1aa EZ |
277 | { |
278 | union REGS regs; | |
279 | ||
280 | if (b >= mouse_button_count) | |
281 | return 0; | |
282 | regs.x.ax = 0x0003; | |
283 | int86 (0x33, ®s, ®s); | |
284 | if ((regs.x.bx & (1 << mouse_button_translate[b])) != 0) | |
285 | { | |
286 | *xp = regs.x.cx / 8; | |
287 | *yp = regs.x.dx / 8; | |
288 | return 1; | |
289 | } | |
290 | return 0; | |
291 | } | |
292 | ||
f32d4091 | 293 | void |
3a8ce822 EZ |
294 | mouse_get_pos (FRAME_PTR *f, int insist, Lisp_Object *bar_window, |
295 | enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y, | |
9fbd6841 | 296 | Time *time) |
f32d4091 KS |
297 | { |
298 | int ix, iy; | |
211c7152 EZ |
299 | Lisp_Object frame, tail; |
300 | ||
301 | /* Clear the mouse-moved flag for every frame on this display. */ | |
302 | FOR_EACH_FRAME (tail, frame) | |
303 | XFRAME (frame)->mouse_moved = 0; | |
f32d4091 | 304 | |
5e617bc2 | 305 | *f = SELECTED_FRAME (); |
f32d4091 KS |
306 | *bar_window = Qnil; |
307 | mouse_get_xy (&ix, &iy); | |
f32d4091 | 308 | *time = event_timestamp (); |
211c7152 EZ |
309 | *x = make_number (mouse_last_x = ix); |
310 | *y = make_number (mouse_last_y = iy); | |
f32d4091 | 311 | } |
1b94449f | 312 | |
f32d4091 | 313 | static void |
3a8ce822 | 314 | mouse_check_moved (void) |
1b94449f | 315 | { |
aee81730 | 316 | int x, y; |
1b94449f | 317 | |
f32d4091 | 318 | mouse_get_xy (&x, &y); |
5e617bc2 | 319 | SELECTED_FRAME ()->mouse_moved |= (x != mouse_last_x || y != mouse_last_y); |
f32d4091 KS |
320 | mouse_last_x = x; |
321 | mouse_last_y = y; | |
322 | } | |
1b94449f | 323 | |
97dd288b EZ |
324 | /* Force the mouse driver to ``forget'' about any button clicks until |
325 | now. */ | |
326 | static void | |
327 | mouse_clear_clicks (void) | |
328 | { | |
329 | int b; | |
330 | ||
331 | for (b = 0; b < mouse_button_count; b++) | |
332 | { | |
333 | int dummy_x, dummy_y; | |
334 | ||
335 | (void) mouse_pressed (b, &dummy_x, &dummy_y); | |
336 | (void) mouse_released (b, &dummy_x, &dummy_y); | |
337 | } | |
338 | } | |
339 | ||
f32d4091 | 340 | void |
3a8ce822 | 341 | mouse_init (void) |
f32d4091 KS |
342 | { |
343 | union REGS regs; | |
3e1944a3 | 344 | struct tty_display_info *tty = CURTTY (); |
647c32eb | 345 | |
3e1944a3 EZ |
346 | if (tty->termscript) |
347 | fprintf (tty->termscript, "<M_INIT>"); | |
1b94449f | 348 | |
f32d4091 KS |
349 | regs.x.ax = 0x0021; |
350 | int86 (0x33, ®s, ®s); | |
091d0bdf | 351 | |
0c7bc1aa EZ |
352 | /* Reset the mouse last press/release info. It seems that Windows |
353 | doesn't do that automatically when function 21h is called, which | |
354 | causes Emacs to ``remember'' the click that switched focus to the | |
355 | window just before Emacs was started from that window. */ | |
97dd288b | 356 | mouse_clear_clicks (); |
0c7bc1aa | 357 | |
f32d4091 KS |
358 | regs.x.ax = 0x0007; |
359 | regs.x.cx = 0; | |
360 | regs.x.dx = 8 * (ScreenCols () - 1); | |
361 | int86 (0x33, ®s, ®s); | |
1b94449f | 362 | |
f32d4091 KS |
363 | regs.x.ax = 0x0008; |
364 | regs.x.cx = 0; | |
365 | regs.x.dx = 8 * (ScreenRows () - 1); | |
366 | int86 (0x33, ®s, ®s); | |
1b94449f | 367 | |
f32d4091 KS |
368 | mouse_moveto (0, 0); |
369 | mouse_visible = 0; | |
370 | } | |
3eb1dbb6 | 371 | \f |
f32d4091 KS |
372 | /* ------------------------- Screen control ---------------------- |
373 | * | |
374 | */ | |
aee81730 | 375 | |
f32d4091 | 376 | static int internal_terminal = 0; |
aee81730 | 377 | |
f32d4091 KS |
378 | #ifndef HAVE_X_WINDOWS |
379 | extern unsigned char ScreenAttrib; | |
380 | static int screen_face; | |
aee81730 | 381 | |
f32d4091 KS |
382 | static int screen_size_X; |
383 | static int screen_size_Y; | |
384 | static int screen_size; | |
1b94449f | 385 | |
f32d4091 KS |
386 | static int current_pos_X; |
387 | static int current_pos_Y; | |
388 | static int new_pos_X; | |
389 | static int new_pos_Y; | |
1b94449f | 390 | |
f32d4091 KS |
391 | static void *startup_screen_buffer; |
392 | static int startup_screen_size_X; | |
393 | static int startup_screen_size_Y; | |
394 | static int startup_pos_X; | |
395 | static int startup_pos_Y; | |
c9adab25 | 396 | static unsigned char startup_screen_attrib; |
1b94449f | 397 | |
06b1ea13 EZ |
398 | static clock_t startup_time; |
399 | ||
f32d4091 | 400 | static int term_setup_done; |
1b94449f | 401 | |
8ba01a32 EZ |
402 | static unsigned short outside_cursor; |
403 | ||
f32d4091 | 404 | /* Similar to the_only_frame. */ |
3e1944a3 | 405 | struct tty_display_info the_only_display_info; |
1b94449f | 406 | |
039274cf EZ |
407 | /* Support for DOS/V (allows Japanese characters to be displayed on |
408 | standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */ | |
409 | ||
410 | /* Holds the address of the text-mode screen buffer. */ | |
411 | static unsigned long screen_old_address = 0; | |
412 | /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */ | |
413 | static unsigned short screen_virtual_segment = 0; | |
414 | static unsigned short screen_virtual_offset = 0; | |
6b61353c KH |
415 | extern Lisp_Object Qcursor_type; |
416 | extern Lisp_Object Qbar, Qhbar; | |
8ba01a32 | 417 | |
9ccf54e9 | 418 | /* The screen colors of the current frame, which serve as the default |
deece6f5 EZ |
419 | colors for newly-created frames. */ |
420 | static int initial_screen_colors[2]; | |
421 | ||
039274cf EZ |
422 | /* Update the screen from a part of relocated DOS/V screen buffer which |
423 | begins at OFFSET and includes COUNT characters. */ | |
424 | static void | |
425 | dosv_refresh_virtual_screen (int offset, int count) | |
426 | { | |
427 | __dpmi_regs regs; | |
428 | ||
9ab8560d | 429 | if (offset < 0 || count < 0) /* paranoia; invalid values crash DOS/V */ |
40437cf5 EZ |
430 | return; |
431 | ||
039274cf EZ |
432 | regs.h.ah = 0xff; /* update relocated screen */ |
433 | regs.x.es = screen_virtual_segment; | |
434 | regs.x.di = screen_virtual_offset + offset; | |
435 | regs.x.cx = count; | |
436 | __dpmi_int (0x10, ®s); | |
437 | } | |
039274cf | 438 | |
d1d5dc19 | 439 | static void |
3a8ce822 | 440 | dos_direct_output (int y, int x, char *buf, int len) |
1b94449f | 441 | { |
40437cf5 EZ |
442 | int t0 = 2 * (x + y * screen_size_X); |
443 | int t = t0 + (int) ScreenPrimary; | |
039274cf | 444 | int l0 = len; |
fc171623 | 445 | |
fc171623 KH |
446 | /* This is faster. */ |
447 | for (_farsetsel (_dos_ds); --len >= 0; t += 2, buf++) | |
448 | _farnspokeb (t, *buf); | |
039274cf EZ |
449 | |
450 | if (screen_virtual_segment) | |
451 | dosv_refresh_virtual_screen (t0, l0); | |
f32d4091 KS |
452 | } |
453 | #endif | |
454 | ||
455 | #ifndef HAVE_X_WINDOWS | |
456 | ||
b36701cc RS |
457 | static int blink_bit = -1; /* the state of the blink bit at startup */ |
458 | ||
76ac1508 RS |
459 | /* Enable bright background colors. */ |
460 | static void | |
461 | bright_bg (void) | |
462 | { | |
463 | union REGS regs; | |
464 | ||
b36701cc RS |
465 | /* Remember the original state of the blink/bright-background bit. |
466 | It is stored at 0040:0065h in the BIOS data area. */ | |
467 | if (blink_bit == -1) | |
468 | blink_bit = (_farpeekb (_dos_ds, 0x465) & 0x20) == 0x20; | |
469 | ||
76ac1508 RS |
470 | regs.h.bl = 0; |
471 | regs.x.ax = 0x1003; | |
472 | int86 (0x10, ®s, ®s); | |
473 | } | |
474 | ||
b36701cc RS |
475 | /* Disable bright background colors (and enable blinking) if we found |
476 | the video system in that state at startup. */ | |
477 | static void | |
478 | maybe_enable_blinking (void) | |
479 | { | |
480 | if (blink_bit == 1) | |
481 | { | |
482 | union REGS regs; | |
483 | ||
484 | regs.h.bl = 1; | |
485 | regs.x.ax = 0x1003; | |
486 | int86 (0x10, ®s, ®s); | |
487 | } | |
488 | } | |
489 | ||
8ba01a32 EZ |
490 | /* Return non-zero if the system has a VGA adapter. */ |
491 | static int | |
492 | vga_installed (void) | |
493 | { | |
494 | union REGS regs; | |
495 | ||
496 | regs.x.ax = 0x1a00; | |
497 | int86 (0x10, ®s, ®s); | |
498 | if (regs.h.al == 0x1a && regs.h.bl > 5 && regs.h.bl < 13) | |
499 | return 1; | |
500 | return 0; | |
501 | } | |
502 | ||
4a96d4d2 KH |
503 | /* Set the screen dimensions so that it can show no less than |
504 | ROWS x COLS frame. */ | |
48ffe371 | 505 | |
4a96d4d2 | 506 | void |
3a8ce822 | 507 | dos_set_window_size (int *rows, int *cols) |
4a96d4d2 KH |
508 | { |
509 | char video_name[30]; | |
4a96d4d2 | 510 | union REGS regs; |
56e19ec4 EZ |
511 | Lisp_Object video_mode; |
512 | int video_mode_value, have_vga = 0; | |
4a96d4d2 KH |
513 | int current_rows = ScreenRows (), current_cols = ScreenCols (); |
514 | ||
515 | if (*rows == current_rows && *cols == current_cols) | |
516 | return; | |
517 | ||
4a96d4d2 | 518 | mouse_off (); |
8ba01a32 | 519 | have_vga = vga_installed (); |
4a96d4d2 | 520 | |
48ffe371 | 521 | /* If the user specified a special video mode for these dimensions, |
4a96d4d2 | 522 | use that mode. */ |
15dbb4d6 PE |
523 | video_mode |
524 | = Fsymbol_value (Fintern_soft (make_formatted_string | |
a8290ec3 DA |
525 | (video_name, "screen-dimensions-%dx%d", |
526 | *rows, *cols), Qnil)); | |
4a96d4d2 KH |
527 | |
528 | if (INTEGERP (video_mode) | |
529 | && (video_mode_value = XINT (video_mode)) > 0) | |
530 | { | |
531 | regs.x.ax = video_mode_value; | |
532 | int86 (0x10, ®s, ®s); | |
48ffe371 RS |
533 | |
534 | if (have_mouse) | |
535 | { | |
536 | /* Must hardware-reset the mouse, or else it won't update | |
537 | its notion of screen dimensions for some non-standard | |
538 | video modes. This is *painfully* slow... */ | |
539 | regs.x.ax = 0; | |
540 | int86 (0x33, ®s, ®s); | |
541 | } | |
4a96d4d2 KH |
542 | } |
543 | ||
544 | /* Find one of the dimensions supported by standard EGA/VGA | |
545 | which gives us at least the required dimensions. */ | |
4a96d4d2 KH |
546 | else |
547 | { | |
548 | static struct { | |
56e19ec4 | 549 | int rows, need_vga; |
4a96d4d2 KH |
550 | } std_dimension[] = { |
551 | {25, 0}, | |
552 | {28, 1}, | |
553 | {35, 0}, | |
554 | {40, 1}, | |
555 | {43, 0}, | |
556 | {50, 1} | |
557 | }; | |
558 | int i = 0; | |
559 | ||
560 | while (i < sizeof (std_dimension) / sizeof (std_dimension[0])) | |
561 | { | |
562 | if (std_dimension[i].need_vga <= have_vga | |
563 | && std_dimension[i].rows >= *rows) | |
564 | { | |
565 | if (std_dimension[i].rows != current_rows | |
566 | || *cols != current_cols) | |
48ffe371 | 567 | _set_screen_lines (std_dimension[i].rows); |
4a96d4d2 KH |
568 | break; |
569 | } | |
48ffe371 | 570 | i++; |
4a96d4d2 KH |
571 | } |
572 | } | |
573 | ||
4a96d4d2 KH |
574 | |
575 | if (have_mouse) | |
576 | { | |
4a96d4d2 KH |
577 | mouse_init (); |
578 | mouse_on (); | |
579 | } | |
580 | ||
581 | /* Tell the caller what dimensions have been REALLY set. */ | |
582 | *rows = ScreenRows (); | |
583 | *cols = ScreenCols (); | |
76ac1508 | 584 | |
bed43f1d EZ |
585 | /* Update Emacs' notion of screen dimensions. */ |
586 | screen_size_X = *cols; | |
587 | screen_size_Y = *rows; | |
588 | screen_size = *cols * *rows; | |
589 | ||
41ad069b EZ |
590 | /* If the dimensions changed, the mouse highlight info is invalid. */ |
591 | if (current_rows != *rows || current_cols != *cols) | |
592 | { | |
5e617bc2 | 593 | struct frame *f = SELECTED_FRAME (); |
34574c02 EZ |
594 | Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f); |
595 | Lisp_Object window = hlinfo->mouse_face_window; | |
41ad069b | 596 | |
d3d50620 | 597 | if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f) |
41ad069b | 598 | { |
34574c02 EZ |
599 | hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1; |
600 | hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1; | |
601 | hlinfo->mouse_face_window = Qnil; | |
41ad069b EZ |
602 | } |
603 | } | |
41ad069b | 604 | |
76ac1508 RS |
605 | /* Enable bright background colors. */ |
606 | bright_bg (); | |
039274cf EZ |
607 | |
608 | /* FIXME: I'm not sure the above will run at all on DOS/V. But let's | |
609 | be defensive anyway. */ | |
610 | if (screen_virtual_segment) | |
611 | dosv_refresh_virtual_screen (0, *cols * *rows); | |
4a96d4d2 KH |
612 | } |
613 | ||
48ffe371 RS |
614 | /* If we write a character in the position where the mouse is, |
615 | the mouse cursor may need to be refreshed. */ | |
09e2ac30 RS |
616 | |
617 | static void | |
3a8ce822 | 618 | mouse_off_maybe (void) |
09e2ac30 | 619 | { |
f32d4091 | 620 | int x, y; |
56e19ec4 | 621 | |
f32d4091 KS |
622 | if (!mouse_visible) |
623 | return; | |
56e19ec4 | 624 | |
f32d4091 KS |
625 | mouse_get_xy (&x, &y); |
626 | if (y != new_pos_Y || x < new_pos_X) | |
627 | return; | |
56e19ec4 | 628 | |
f32d4091 KS |
629 | mouse_off (); |
630 | } | |
631 | ||
8ba01a32 EZ |
632 | #define DEFAULT_CURSOR_START (-1) |
633 | #define DEFAULT_CURSOR_WIDTH (-1) | |
634 | #define BOX_CURSOR_WIDTH (-32) | |
635 | ||
636 | /* Set cursor to begin at scan line START_LINE in the character cell | |
637 | and extend for WIDTH scan lines. Scan lines are counted from top | |
638 | of the character cell, starting from zero. */ | |
639 | static void | |
640 | msdos_set_cursor_shape (struct frame *f, int start_line, int width) | |
641 | { | |
8ba01a32 EZ |
642 | unsigned desired_cursor; |
643 | __dpmi_regs regs; | |
644 | int max_line, top_line, bot_line; | |
3e1944a3 | 645 | struct tty_display_info *tty = FRAME_TTY (f); |
8ba01a32 EZ |
646 | |
647 | /* Avoid the costly BIOS call if F isn't the currently selected | |
648 | frame. Allow for NULL as unconditionally meaning the selected | |
649 | frame. */ | |
5e617bc2 | 650 | if (f && f != SELECTED_FRAME ()) |
8ba01a32 EZ |
651 | return; |
652 | ||
3e1944a3 EZ |
653 | if (tty->termscript) |
654 | fprintf (tty->termscript, "\nCURSOR SHAPE=(%d,%d)", start_line, width); | |
b106731c | 655 | |
8ba01a32 EZ |
656 | /* The character cell size in scan lines is stored at 40:85 in the |
657 | BIOS data area. */ | |
658 | max_line = _farpeekw (_dos_ds, 0x485) - 1; | |
659 | switch (max_line) | |
660 | { | |
661 | default: /* this relies on CGA cursor emulation being ON! */ | |
662 | case 7: | |
663 | bot_line = 7; | |
664 | break; | |
665 | case 9: | |
666 | bot_line = 9; | |
667 | break; | |
668 | case 13: | |
669 | bot_line = 12; | |
670 | break; | |
671 | case 15: | |
672 | bot_line = 14; | |
673 | break; | |
674 | } | |
675 | ||
676 | if (width < 0) | |
677 | { | |
678 | if (width == BOX_CURSOR_WIDTH) | |
679 | { | |
680 | top_line = 0; | |
681 | bot_line = max_line; | |
682 | } | |
683 | else if (start_line != DEFAULT_CURSOR_START) | |
684 | { | |
685 | top_line = start_line; | |
686 | bot_line = top_line - width - 1; | |
687 | } | |
688 | else if (width != DEFAULT_CURSOR_WIDTH) | |
689 | { | |
690 | top_line = 0; | |
691 | bot_line = -1 - width; | |
692 | } | |
693 | else | |
694 | top_line = bot_line + 1; | |
695 | } | |
696 | else if (width == 0) | |
697 | { | |
698 | /* [31, 0] seems to DTRT for all screen sizes. */ | |
699 | top_line = 31; | |
700 | bot_line = 0; | |
701 | } | |
702 | else /* WIDTH is positive */ | |
703 | { | |
704 | if (start_line != DEFAULT_CURSOR_START) | |
705 | bot_line = start_line; | |
706 | top_line = bot_line - (width - 1); | |
707 | } | |
708 | ||
709 | /* If the current cursor shape is already what they want, we are | |
710 | history here. */ | |
711 | desired_cursor = ((top_line & 0x1f) << 8) | (bot_line & 0x1f); | |
712 | if (desired_cursor == _farpeekw (_dos_ds, 0x460)) | |
713 | return; | |
714 | ||
715 | regs.h.ah = 1; | |
716 | regs.x.cx = desired_cursor; | |
717 | __dpmi_int (0x10, ®s); | |
8ba01a32 EZ |
718 | } |
719 | ||
720 | static void | |
721 | IT_set_cursor_type (struct frame *f, Lisp_Object cursor_type) | |
722 | { | |
a0738471 | 723 | if (EQ (cursor_type, Qbar) || EQ (cursor_type, Qhbar)) |
8ba01a32 EZ |
724 | { |
725 | /* Just BAR means the normal EGA/VGA cursor. */ | |
726 | msdos_set_cursor_shape (f, DEFAULT_CURSOR_START, DEFAULT_CURSOR_WIDTH); | |
727 | } | |
a0738471 EZ |
728 | else if (CONSP (cursor_type) |
729 | && (EQ (XCAR (cursor_type), Qbar) | |
730 | || EQ (XCAR (cursor_type), Qhbar))) | |
8ba01a32 EZ |
731 | { |
732 | Lisp_Object bar_parms = XCDR (cursor_type); | |
733 | int width; | |
734 | ||
735 | if (INTEGERP (bar_parms)) | |
736 | { | |
737 | /* Feature: negative WIDTH means cursor at the top | |
738 | of the character cell, zero means invisible cursor. */ | |
739 | width = XINT (bar_parms); | |
740 | msdos_set_cursor_shape (f, width >= 0 ? DEFAULT_CURSOR_START : 0, | |
741 | width); | |
742 | } | |
743 | else if (CONSP (bar_parms) | |
744 | && INTEGERP (XCAR (bar_parms)) | |
745 | && INTEGERP (XCDR (bar_parms))) | |
746 | { | |
747 | int start_line = XINT (XCDR (bar_parms)); | |
748 | ||
749 | width = XINT (XCAR (bar_parms)); | |
750 | msdos_set_cursor_shape (f, start_line, width); | |
751 | } | |
752 | } | |
753 | else | |
b106731c EZ |
754 | { |
755 | /* Treat anything unknown as "box cursor". This includes nil, so | |
756 | that a frame which doesn't specify a cursor type gets a box, | |
757 | which is the default in Emacs. */ | |
758 | msdos_set_cursor_shape (f, 0, BOX_CURSOR_WIDTH); | |
759 | } | |
8ba01a32 EZ |
760 | } |
761 | ||
71f65669 | 762 | static void |
3e1944a3 | 763 | IT_ring_bell (struct frame *f) |
f32d4091 KS |
764 | { |
765 | if (visible_bell) | |
aee81730 | 766 | { |
f32d4091 KS |
767 | mouse_off (); |
768 | ScreenVisualBell (); | |
aee81730 | 769 | } |
f32d4091 | 770 | else |
3635be47 RS |
771 | { |
772 | union REGS inregs, outregs; | |
773 | inregs.h.ah = 2; | |
774 | inregs.h.dl = 7; | |
775 | intdos (&inregs, &outregs); | |
776 | } | |
09e2ac30 RS |
777 | } |
778 | ||
c77f6f1b EZ |
779 | /* Given a face id FACE, extract the face parameters to be used for |
780 | display until the face changes. The face parameters (actually, its | |
781 | color) are used to construct the video attribute byte for each | |
782 | glyph during the construction of the buffer that is then blitted to | |
783 | the video RAM. */ | |
f32d4091 KS |
784 | static void |
785 | IT_set_face (int face) | |
786 | { | |
5e617bc2 | 787 | struct frame *sf = SELECTED_FRAME (); |
546701f5 EZ |
788 | struct face *fp = FACE_FROM_ID (sf, face); |
789 | struct face *dfp = FACE_FROM_ID (sf, DEFAULT_FACE_ID); | |
790 | unsigned long fg, bg, dflt_fg, dflt_bg; | |
3e1944a3 | 791 | struct tty_display_info *tty = FRAME_TTY (sf); |
f32d4091 | 792 | |
c77f6f1b | 793 | if (!fp) |
e30aee93 | 794 | { |
546701f5 | 795 | fp = dfp; |
e30aee93 EZ |
796 | /* The default face for the frame should always be realized and |
797 | cached. */ | |
798 | if (!fp) | |
1088b922 | 799 | emacs_abort (); |
e30aee93 | 800 | } |
f32d4091 | 801 | screen_face = face; |
c77f6f1b EZ |
802 | fg = fp->foreground; |
803 | bg = fp->background; | |
546701f5 EZ |
804 | dflt_fg = dfp->foreground; |
805 | dflt_bg = dfp->background; | |
c77f6f1b | 806 | |
abcce93a MB |
807 | /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* colors |
808 | mean use the colors of the default face. Note that we assume all | |
809 | 16 colors to be available for the background, since Emacs switches | |
810 | on this mode (and loses the blinking attribute) at startup. */ | |
f9d2fdc4 | 811 | if (fg == FACE_TTY_DEFAULT_COLOR || fg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 | 812 | fg = FRAME_FOREGROUND_PIXEL (sf); |
f9d2fdc4 | 813 | else if (fg == FACE_TTY_DEFAULT_BG_COLOR) |
3b620731 EZ |
814 | fg = FRAME_BACKGROUND_PIXEL (sf); |
815 | if (bg == FACE_TTY_DEFAULT_COLOR || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
816 | bg = FRAME_BACKGROUND_PIXEL (sf); | |
f9d2fdc4 | 817 | else if (bg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 EZ |
818 | bg = FRAME_FOREGROUND_PIXEL (sf); |
819 | ||
820 | /* Make sure highlighted lines really stand out, come what may. */ | |
abcce93a | 821 | if (fp->tty_reverse_p && (fg == dflt_fg && bg == dflt_bg)) |
3b620731 EZ |
822 | { |
823 | unsigned long tem = fg; | |
824 | ||
825 | fg = bg; | |
826 | bg = tem; | |
827 | } | |
76648534 EZ |
828 | /* If the user requested inverse video, obey. */ |
829 | if (inverse_video) | |
830 | { | |
831 | unsigned long tem2 = fg; | |
832 | ||
833 | fg = bg; | |
834 | bg = tem2; | |
835 | } | |
3e1944a3 | 836 | if (tty->termscript) |
891ef8f7 | 837 | fprintf (tty->termscript, "<FACE %d: %lu/%lu[FG:%lu/BG:%lu]>", face, |
abcce93a | 838 | fp->foreground, fp->background, fg, bg); |
c77f6f1b EZ |
839 | if (fg >= 0 && fg < 16) |
840 | { | |
841 | ScreenAttrib &= 0xf0; | |
842 | ScreenAttrib |= fg; | |
843 | } | |
844 | if (bg >= 0 && bg < 16) | |
845 | { | |
846 | ScreenAttrib &= 0x0f; | |
847 | ScreenAttrib |= ((bg & 0x0f) << 4); | |
848 | } | |
f32d4091 KS |
849 | } |
850 | ||
aff01dd9 EZ |
851 | /* According to RBIL (INTERRUP.A, V-1000), 160 is the maximum possible |
852 | width of a DOS display in any known text mode. We multiply by 2 to | |
7ee6a1d3 | 853 | accommodate the screen attribute byte. */ |
aff01dd9 EZ |
854 | #define MAX_SCREEN_BUF 160*2 |
855 | ||
3e1944a3 EZ |
856 | extern unsigned char *encode_terminal_code (struct glyph *, int, |
857 | struct coding_system *); | |
7ef4b50c | 858 | |
71f65669 | 859 | static void |
3e1944a3 | 860 | IT_write_glyphs (struct frame *f, struct glyph *str, int str_len) |
f32d4091 | 861 | { |
aff01dd9 | 862 | unsigned char screen_buf[MAX_SCREEN_BUF], *screen_bp, *bp; |
039274cf | 863 | int offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 | 864 | register int sl = str_len; |
3e1944a3 | 865 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 | 866 | struct frame *sf; |
3e1944a3 | 867 | unsigned char *conversion_buffer; |
87485d6f | 868 | |
3e1944a3 EZ |
869 | /* If terminal_coding does any conversion, use it, otherwise use |
870 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
871 | because it always returns 1 if terminal_coding.src_multibyte is 1. */ | |
872 | struct coding_system *coding = FRAME_TERMINAL_CODING (f); | |
873 | ||
874 | if (!(coding->common_flags & CODING_REQUIRE_ENCODING_MASK)) | |
875 | coding = &safe_terminal_coding; | |
648648a9 | 876 | |
3b620731 | 877 | if (str_len <= 0) return; |
56e19ec4 | 878 | |
5e617bc2 | 879 | sf = SELECTED_FRAME (); |
e30aee93 EZ |
880 | |
881 | /* Since faces get cached and uncached behind our back, we can't | |
882 | rely on their indices in the cache being consistent across | |
883 | invocations. So always reset the screen face to the default | |
884 | face of the frame, before writing glyphs, and let the glyphs | |
885 | set the right face if it's different from the default. */ | |
886 | IT_set_face (DEFAULT_FACE_ID); | |
56e19ec4 | 887 | |
aa9ce936 EZ |
888 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
889 | the tail. */ | |
3e1944a3 | 890 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
aff01dd9 | 891 | screen_bp = &screen_buf[0]; |
3e1944a3 | 892 | while (sl > 0) |
aa9ce936 | 893 | { |
3e1944a3 | 894 | int cf; |
aff01dd9 | 895 | int n; |
aa9ce936 | 896 | |
aff01dd9 EZ |
897 | /* If the face of this glyph is different from the current |
898 | screen face, update the screen attribute byte. */ | |
899 | cf = str->face_id; | |
900 | if (cf != screen_face) | |
901 | IT_set_face (cf); /* handles invalid faces gracefully */ | |
902 | ||
903 | /* Identify a run of glyphs with the same face. */ | |
904 | for (n = 1; n < sl; ++n) | |
905 | if (str[n].face_id != cf) | |
906 | break; | |
907 | ||
908 | if (n >= sl) | |
909 | /* This is the last glyph. */ | |
910 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
911 | ||
912 | conversion_buffer = encode_terminal_code (str, n, coding); | |
913 | if (coding->produced > 0) | |
aa9ce936 | 914 | { |
aff01dd9 EZ |
915 | /* Copy the encoded bytes to the screen buffer. */ |
916 | for (bp = conversion_buffer; coding->produced--; bp++) | |
aa9ce936 | 917 | { |
aff01dd9 EZ |
918 | /* Paranoia: discard bytes that would overrun the end of |
919 | the screen buffer. */ | |
920 | if (screen_bp - screen_buf <= MAX_SCREEN_BUF - 2) | |
aa9ce936 | 921 | { |
aff01dd9 EZ |
922 | *screen_bp++ = (unsigned char)*bp; |
923 | *screen_bp++ = ScreenAttrib; | |
aa9ce936 | 924 | } |
aff01dd9 EZ |
925 | if (tty->termscript) |
926 | fputc (*bp, tty->termscript); | |
aa9ce936 EZ |
927 | } |
928 | } | |
aff01dd9 EZ |
929 | /* Update STR and its remaining length. */ |
930 | str += n; | |
931 | sl -= n; | |
aee81730 RS |
932 | } |
933 | ||
aff01dd9 | 934 | /* Dump whatever we have in the screen buffer. */ |
f32d4091 | 935 | mouse_off_maybe (); |
aa9ce936 | 936 | dosmemput (screen_buf, screen_bp - screen_buf, (int)ScreenPrimary + offset); |
039274cf | 937 | if (screen_virtual_segment) |
aa9ce936 EZ |
938 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); |
939 | new_pos_X += (screen_bp - screen_buf) / 2; | |
f32d4091 | 940 | } |
aee81730 | 941 | |
41ad069b EZ |
942 | /************************************************************************ |
943 | Mouse Highlight (and friends..) | |
944 | ************************************************************************/ | |
945 | ||
ee8ceff8 | 946 | /* Last window where we saw the mouse. Used by mouse-autoselect-window. */ |
9005a471 EZ |
947 | static Lisp_Object last_mouse_window; |
948 | ||
41ad069b EZ |
949 | static int mouse_preempted = 0; /* non-zero when XMenu gobbles mouse events */ |
950 | ||
d009ae66 EZ |
951 | int |
952 | popup_activated (void) | |
41ad069b | 953 | { |
d009ae66 | 954 | return mouse_preempted; |
41ad069b EZ |
955 | } |
956 | ||
d009ae66 | 957 | /* Draw TEXT_AREA glyphs between START and END of glyph row ROW on |
28118eb6 EZ |
958 | window W. X is relative to TEXT_AREA in W. HL is a face override |
959 | for drawing the glyphs. */ | |
d009ae66 | 960 | void |
28118eb6 EZ |
961 | tty_draw_row_with_mouse_face (struct window *w, struct glyph_row *row, |
962 | int start_hpos, int end_hpos, | |
963 | enum draw_glyphs_face hl) | |
41ad069b | 964 | { |
41ad069b | 965 | struct frame *f = XFRAME (WINDOW_FRAME (w)); |
3e1944a3 | 966 | struct tty_display_info *tty = FRAME_TTY (f); |
34574c02 | 967 | Mouse_HLInfo *hlinfo = &tty->mouse_highlight; |
41ad069b | 968 | |
d009ae66 | 969 | if (hl == DRAW_MOUSE_FACE) |
41ad069b | 970 | { |
d009ae66 EZ |
971 | int vpos = row->y + WINDOW_TOP_EDGE_Y (w); |
972 | int kstart = start_hpos + WINDOW_LEFT_EDGE_X (w); | |
973 | int nglyphs = end_hpos - start_hpos; | |
974 | int offset = ScreenPrimary + 2*(vpos*screen_size_X + kstart) + 1; | |
975 | int start_offset = offset; | |
41ad069b | 976 | |
d009ae66 EZ |
977 | if (tty->termscript) |
978 | fprintf (tty->termscript, "\n<MH+ %d-%d:%d>", | |
979 | kstart, kstart + nglyphs - 1, vpos); | |
56e19ec4 | 980 | |
d009ae66 | 981 | mouse_off (); |
34574c02 | 982 | IT_set_face (hlinfo->mouse_face_face_id); |
d009ae66 EZ |
983 | /* Since we are going to change only the _colors_ of already |
984 | displayed text, there's no need to go through all the pain of | |
985 | generating and encoding the text from the glyphs. Instead, | |
986 | we simply poke the attribute byte of each affected position | |
987 | in video memory with the colors computed by IT_set_face! */ | |
988 | _farsetsel (_dos_ds); | |
989 | while (nglyphs--) | |
41ad069b | 990 | { |
d009ae66 EZ |
991 | _farnspokeb (offset, ScreenAttrib); |
992 | offset += 2; | |
41ad069b | 993 | } |
d009ae66 EZ |
994 | if (screen_virtual_segment) |
995 | dosv_refresh_virtual_screen (start_offset, end_hpos - start_hpos); | |
996 | mouse_on (); | |
41ad069b | 997 | } |
d009ae66 | 998 | else if (hl == DRAW_NORMAL_TEXT) |
41ad069b | 999 | { |
d009ae66 EZ |
1000 | /* We are removing a previously-drawn mouse highlight. The |
1001 | safest way to do so is to redraw the glyphs anew, since all | |
1002 | kinds of faces and display tables could have changed behind | |
1003 | our back. */ | |
1004 | int nglyphs = end_hpos - start_hpos; | |
1005 | int save_x = new_pos_X, save_y = new_pos_Y; | |
1006 | ||
1007 | if (end_hpos >= row->used[TEXT_AREA]) | |
1008 | nglyphs = row->used[TEXT_AREA] - start_hpos; | |
1009 | ||
1010 | /* IT_write_glyphs writes at cursor position, so we need to | |
1011 | temporarily move cursor coordinates to the beginning of | |
1012 | the highlight region. */ | |
1013 | new_pos_X = start_hpos + WINDOW_LEFT_EDGE_X (w); | |
1014 | new_pos_Y = row->y + WINDOW_TOP_EDGE_Y (w); | |
41ad069b | 1015 | |
d009ae66 EZ |
1016 | if (tty->termscript) |
1017 | fprintf (tty->termscript, "<MH- %d-%d:%d>", | |
1018 | new_pos_X, new_pos_X + nglyphs - 1, new_pos_Y); | |
1019 | IT_write_glyphs (f, row->glyphs[TEXT_AREA] + start_hpos, nglyphs); | |
1020 | if (tty->termscript) | |
1021 | fputs ("\n", tty->termscript); | |
1022 | new_pos_X = save_x; | |
1023 | new_pos_Y = save_y; | |
41ad069b EZ |
1024 | } |
1025 | } | |
1026 | ||
71f65669 | 1027 | static void |
3e1944a3 | 1028 | IT_clear_end_of_line (struct frame *f, int first_unused) |
f32d4091 KS |
1029 | { |
1030 | char *spaces, *sp; | |
56e19ec4 | 1031 | int i, j, offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
3e1944a3 | 1032 | struct tty_display_info *tty = FRAME_TTY (f); |
aa9ce936 | 1033 | |
2d764c78 | 1034 | if (new_pos_X >= first_unused || fatal_error_in_progress) |
aa9ce936 | 1035 | return; |
f32d4091 KS |
1036 | |
1037 | IT_set_face (0); | |
2d764c78 | 1038 | i = (j = first_unused - new_pos_X) * 2; |
3e1944a3 EZ |
1039 | if (tty->termscript) |
1040 | fprintf (tty->termscript, "<CLR:EOL[%d..%d)>", new_pos_X, first_unused); | |
f32d4091 | 1041 | spaces = sp = alloca (i); |
56e19ec4 | 1042 | |
f32d4091 | 1043 | while (--j >= 0) |
aee81730 | 1044 | { |
f32d4091 KS |
1045 | *sp++ = ' '; |
1046 | *sp++ = ScreenAttrib; | |
aee81730 RS |
1047 | } |
1048 | ||
f32d4091 | 1049 | mouse_off_maybe (); |
039274cf EZ |
1050 | dosmemput (spaces, i, (int)ScreenPrimary + offset); |
1051 | if (screen_virtual_segment) | |
1052 | dosv_refresh_virtual_screen (offset, i / 2); | |
2d764c78 EZ |
1053 | |
1054 | /* clear_end_of_line_raw on term.c leaves the cursor at first_unused. | |
1055 | Let's follow their lead, in case someone relies on this. */ | |
1056 | new_pos_X = first_unused; | |
aee81730 RS |
1057 | } |
1058 | ||
71f65669 | 1059 | static void |
3e1944a3 | 1060 | IT_clear_screen (struct frame *f) |
f32d4091 | 1061 | { |
3e1944a3 EZ |
1062 | struct tty_display_info *tty = FRAME_TTY (f); |
1063 | ||
1064 | if (tty->termscript) | |
1065 | fprintf (tty->termscript, "<CLR:SCR>"); | |
deece6f5 EZ |
1066 | /* We are sometimes called (from clear_garbaged_frames) when a new |
1067 | frame is being created, but its faces are not yet realized. In | |
1068 | such a case we cannot call IT_set_face, since it will fail to find | |
1069 | any valid faces and will abort. Instead, use the initial screen | |
1070 | colors; that should mimic what a Unix tty does, which simply clears | |
1071 | the screen with whatever default colors are in use. */ | |
1072 | if (FACE_FROM_ID (SELECTED_FRAME (), DEFAULT_FACE_ID) == NULL) | |
1073 | ScreenAttrib = (initial_screen_colors[0] << 4) | initial_screen_colors[1]; | |
1074 | else | |
1075 | IT_set_face (0); | |
f32d4091 KS |
1076 | mouse_off (); |
1077 | ScreenClear (); | |
039274cf EZ |
1078 | if (screen_virtual_segment) |
1079 | dosv_refresh_virtual_screen (0, screen_size); | |
f32d4091 KS |
1080 | new_pos_X = new_pos_Y = 0; |
1081 | } | |
1082 | ||
71f65669 | 1083 | static void |
3e1944a3 | 1084 | IT_clear_to_end (struct frame *f) |
f32d4091 | 1085 | { |
3e1944a3 EZ |
1086 | struct tty_display_info *tty = FRAME_TTY (f); |
1087 | ||
1088 | if (tty->termscript) | |
1089 | fprintf (tty->termscript, "<CLR:EOS>"); | |
f32d4091 KS |
1090 | |
1091 | while (new_pos_Y < screen_size_Y) { | |
1092 | new_pos_X = 0; | |
3e1944a3 | 1093 | IT_clear_end_of_line (f, screen_size_X); |
f32d4091 KS |
1094 | new_pos_Y++; |
1095 | } | |
1096 | } | |
1097 | ||
71f65669 | 1098 | static void |
3e1944a3 | 1099 | IT_cursor_to (struct frame *f, int y, int x) |
f32d4091 | 1100 | { |
3e1944a3 EZ |
1101 | struct tty_display_info *tty = FRAME_TTY (f); |
1102 | ||
1103 | if (tty->termscript) | |
1104 | fprintf (tty->termscript, "\n<XY=%dx%d>", x, y); | |
f32d4091 KS |
1105 | new_pos_X = x; |
1106 | new_pos_Y = y; | |
1107 | } | |
1108 | ||
fc171623 KH |
1109 | static int cursor_cleared; |
1110 | ||
d1d5dc19 | 1111 | static void |
fc171623 KH |
1112 | IT_display_cursor (int on) |
1113 | { | |
3e1944a3 EZ |
1114 | struct tty_display_info *tty = CURTTY (); |
1115 | ||
fc171623 KH |
1116 | if (on && cursor_cleared) |
1117 | { | |
1118 | ScreenSetCursor (current_pos_Y, current_pos_X); | |
1119 | cursor_cleared = 0; | |
b04021eb | 1120 | if (tty->termscript) |
cb4545ad EZ |
1121 | fprintf (tty->termscript, "\nCURSOR ON (%dx%d)", |
1122 | current_pos_Y, current_pos_X); | |
fc171623 KH |
1123 | } |
1124 | else if (!on && !cursor_cleared) | |
1125 | { | |
1126 | ScreenSetCursor (-1, -1); | |
1127 | cursor_cleared = 1; | |
b04021eb | 1128 | if (tty->termscript) |
cb4545ad EZ |
1129 | fprintf (tty->termscript, "\nCURSOR OFF (%dx%d)", |
1130 | current_pos_Y, current_pos_X); | |
fc171623 KH |
1131 | } |
1132 | } | |
1133 | ||
1134 | /* Emacs calls cursor-movement functions a lot when it updates the | |
1135 | display (probably a legacy of old terminals where you cannot | |
1136 | update a screen line without first moving the cursor there). | |
1137 | However, cursor movement is expensive on MSDOS (it calls a slow | |
1138 | BIOS function and requires 2 mode switches), while actual screen | |
1139 | updates access the video memory directly and don't depend on | |
1140 | cursor position. To avoid slowing down the redisplay, we cheat: | |
1141 | all functions that move the cursor only set internal variables | |
1142 | which record the cursor position, whereas the cursor is only | |
1143 | moved to its final position whenever screen update is complete. | |
1144 | ||
1145 | `IT_cmgoto' is called from the keyboard reading loop and when the | |
1146 | frame update is complete. This means that we are ready for user | |
1147 | input, so we update the cursor position to show where the point is, | |
1148 | and also make the mouse pointer visible. | |
1149 | ||
1150 | Special treatment is required when the cursor is in the echo area, | |
1151 | to put the cursor at the end of the text displayed there. */ | |
1152 | ||
71f65669 EZ |
1153 | static void |
1154 | IT_cmgoto (FRAME_PTR f) | |
fc171623 KH |
1155 | { |
1156 | /* Only set the cursor to where it should be if the display is | |
1157 | already in sync with the window contents. */ | |
2d764c78 | 1158 | int update_cursor_pos = 1; /* MODIFF == unchanged_modified; */ |
3e1944a3 | 1159 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 EZ |
1160 | |
1161 | /* FIXME: This needs to be rewritten for the new redisplay, or | |
1162 | removed. */ | |
1163 | #if 0 | |
06da1de1 EZ |
1164 | static int previous_pos_X = -1; |
1165 | ||
2d764c78 EZ |
1166 | update_cursor_pos = 1; /* temporary!!! */ |
1167 | ||
06da1de1 EZ |
1168 | /* If the display is in sync, forget any previous knowledge about |
1169 | cursor position. This is primarily for unexpected events like | |
1170 | C-g in the minibuffer. */ | |
1171 | if (update_cursor_pos && previous_pos_X >= 0) | |
1172 | previous_pos_X = -1; | |
1173 | /* If we are in the echo area, put the cursor at the | |
1174 | end of the echo area message. */ | |
fc171623 | 1175 | if (!update_cursor_pos |
c655f6fd | 1176 | && WINDOW_TOP_EDGE_LINE (XWINDOW (FRAME_MINIBUF_WINDOW (f))) <= new_pos_Y) |
fc171623 | 1177 | { |
06da1de1 EZ |
1178 | int tem_X = current_pos_X, dummy; |
1179 | ||
1180 | if (echo_area_glyphs) | |
1181 | { | |
1182 | tem_X = echo_area_glyphs_length; | |
1183 | /* Save current cursor position, to be restored after the | |
1184 | echo area message is erased. Only remember one level | |
1185 | of previous cursor position. */ | |
1186 | if (previous_pos_X == -1) | |
1187 | ScreenGetCursor (&dummy, &previous_pos_X); | |
1188 | } | |
1189 | else if (previous_pos_X >= 0) | |
1190 | { | |
1191 | /* We wind up here after the echo area message is erased. | |
1192 | Restore the cursor position we remembered above. */ | |
1193 | tem_X = previous_pos_X; | |
1194 | previous_pos_X = -1; | |
1195 | } | |
9a599a60 | 1196 | |
06da1de1 | 1197 | if (current_pos_X != tem_X) |
9a599a60 EZ |
1198 | { |
1199 | new_pos_X = tem_X; | |
1200 | update_cursor_pos = 1; | |
1201 | } | |
fc171623 | 1202 | } |
2d764c78 | 1203 | #endif |
fc171623 KH |
1204 | |
1205 | if (update_cursor_pos | |
1206 | && (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y)) | |
1207 | { | |
1208 | ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X); | |
3e1944a3 EZ |
1209 | if (tty->termscript) |
1210 | fprintf (tty->termscript, "\n<CURSOR:%dx%d>", current_pos_X, current_pos_Y); | |
fc171623 KH |
1211 | } |
1212 | ||
1213 | /* Maybe cursor is invisible, so make it visible. */ | |
1214 | IT_display_cursor (1); | |
1215 | ||
1216 | /* Mouse pointer should be always visible if we are waiting for | |
1217 | keyboard input. */ | |
1218 | if (!mouse_visible) | |
1219 | mouse_on (); | |
1220 | } | |
1221 | ||
71f65669 | 1222 | static void |
41ad069b | 1223 | IT_update_begin (struct frame *f) |
f32d4091 | 1224 | { |
3e1944a3 | 1225 | struct tty_display_info *display_info = FRAME_X_DISPLAY_INFO (f); |
34574c02 EZ |
1226 | Mouse_HLInfo *hlinfo = &display_info->mouse_highlight; |
1227 | struct frame *mouse_face_frame = hlinfo->mouse_face_mouse_frame; | |
41ad069b | 1228 | |
7ccd1daf EZ |
1229 | if (display_info->termscript) |
1230 | fprintf (display_info->termscript, "\n\n<UPDATE_BEGIN"); | |
1231 | ||
4d7e6e51 | 1232 | block_input (); |
41ad069b | 1233 | |
b9f80d41 | 1234 | if (f && f == mouse_face_frame) |
41ad069b EZ |
1235 | { |
1236 | /* Don't do highlighting for mouse motion during the update. */ | |
34574c02 | 1237 | hlinfo->mouse_face_defer = 1; |
41ad069b EZ |
1238 | |
1239 | /* If F needs to be redrawn, simply forget about any prior mouse | |
1240 | highlighting. */ | |
1241 | if (FRAME_GARBAGED_P (f)) | |
34574c02 | 1242 | hlinfo->mouse_face_window = Qnil; |
41ad069b EZ |
1243 | |
1244 | /* Can we tell that this update does not affect the window | |
1245 | where the mouse highlight is? If so, no need to turn off. | |
48c14970 EZ |
1246 | Likewise, don't do anything if none of the enabled rows |
1247 | contains glyphs highlighted in mouse face. */ | |
34574c02 EZ |
1248 | if (!NILP (hlinfo->mouse_face_window) |
1249 | && WINDOWP (hlinfo->mouse_face_window)) | |
41ad069b | 1250 | { |
34574c02 | 1251 | struct window *w = XWINDOW (hlinfo->mouse_face_window); |
41ad069b EZ |
1252 | int i; |
1253 | ||
8ccb9a54 EZ |
1254 | /* If the mouse highlight is in the window that was deleted |
1255 | (e.g., if it was popped by completion), clear highlight | |
1256 | unconditionally. */ | |
d3d50620 | 1257 | if (NILP (w->buffer)) |
34574c02 | 1258 | hlinfo->mouse_face_window = Qnil; |
8ccb9a54 EZ |
1259 | else |
1260 | { | |
1261 | for (i = 0; i < w->desired_matrix->nrows; ++i) | |
48c14970 EZ |
1262 | if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i) |
1263 | && MATRIX_ROW (w->current_matrix, i)->mouse_face_p) | |
8ccb9a54 EZ |
1264 | break; |
1265 | } | |
41ad069b | 1266 | |
d3d50620 | 1267 | if (NILP (w->buffer) || i < w->desired_matrix->nrows) |
34574c02 | 1268 | clear_mouse_face (hlinfo); |
41ad069b EZ |
1269 | } |
1270 | } | |
b9f80d41 | 1271 | else if (mouse_face_frame && !FRAME_LIVE_P (mouse_face_frame)) |
41ad069b EZ |
1272 | { |
1273 | /* If the frame with mouse highlight was deleted, invalidate the | |
1274 | highlight info. */ | |
34574c02 EZ |
1275 | hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1; |
1276 | hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1; | |
1277 | hlinfo->mouse_face_window = Qnil; | |
34574c02 | 1278 | hlinfo->mouse_face_mouse_frame = NULL; |
41ad069b EZ |
1279 | } |
1280 | ||
4d7e6e51 | 1281 | unblock_input (); |
f32d4091 KS |
1282 | } |
1283 | ||
71f65669 | 1284 | static void |
41ad069b | 1285 | IT_update_end (struct frame *f) |
f32d4091 | 1286 | { |
7ccd1daf EZ |
1287 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
1288 | ||
1289 | if (dpyinfo->termscript) | |
1290 | fprintf (dpyinfo->termscript, "\n<UPDATE_END\n"); | |
34574c02 | 1291 | dpyinfo->mouse_highlight.mouse_face_defer = 0; |
41ad069b EZ |
1292 | } |
1293 | ||
1294 | static void | |
1295 | IT_frame_up_to_date (struct frame *f) | |
1296 | { | |
0c3cfc51 EZ |
1297 | Lisp_Object new_cursor, frame_desired_cursor; |
1298 | struct window *sw; | |
41ad069b | 1299 | |
5c747675 | 1300 | FRAME_MOUSE_UPDATE (f); |
41ad069b | 1301 | |
0c3cfc51 EZ |
1302 | /* Set the cursor type to whatever they wanted. In a minibuffer |
1303 | window, we want the cursor to appear only if we are reading input | |
1304 | from this window, and we want the cursor to be taken from the | |
1305 | frame parameters. For the selected window, we use either its | |
1306 | buffer-local value or the value from the frame parameters if the | |
1307 | buffer doesn't define its local value for the cursor type. */ | |
e69b0960 DA |
1308 | sw = XWINDOW (f->selected_window); |
1309 | frame_desired_cursor = Fcdr (Fassq (Qcursor_type, f->param_alist)); | |
0c3cfc51 EZ |
1310 | if (cursor_in_echo_area |
1311 | && FRAME_HAS_MINIBUF_P (f) | |
1312 | && EQ (FRAME_MINIBUF_WINDOW (f), echo_area_window) | |
1313 | && sw == XWINDOW (echo_area_window)) | |
1314 | new_cursor = frame_desired_cursor; | |
1315 | else | |
1316 | { | |
d3d50620 | 1317 | struct buffer *b = XBUFFER (sw->buffer); |
0c3cfc51 | 1318 | |
4b4deea2 | 1319 | if (EQ (BVAR (b,cursor_type), Qt)) |
0c3cfc51 | 1320 | new_cursor = frame_desired_cursor; |
4b4deea2 | 1321 | else if (NILP (BVAR (b, cursor_type))) /* nil means no cursor */ |
0c3cfc51 EZ |
1322 | new_cursor = Fcons (Qbar, make_number (0)); |
1323 | else | |
4b4deea2 | 1324 | new_cursor = BVAR (b, cursor_type); |
0c3cfc51 EZ |
1325 | } |
1326 | ||
1327 | IT_set_cursor_type (f, new_cursor); | |
8ba01a32 | 1328 | |
41ad069b | 1329 | IT_cmgoto (f); /* position cursor when update is done */ |
f32d4091 | 1330 | } |
1b94449f | 1331 | |
c77f6f1b EZ |
1332 | /* Copy LEN glyphs displayed on a single line whose vertical position |
1333 | is YPOS, beginning at horizontal position XFROM to horizontal | |
1334 | position XTO, by moving blocks in the video memory. Used by | |
1335 | functions that insert and delete glyphs. */ | |
1336 | static void | |
1337 | IT_copy_glyphs (int xfrom, int xto, size_t len, int ypos) | |
1338 | { | |
1339 | /* The offsets of source and destination relative to the | |
53964682 | 1340 | conventional memory selector. */ |
c77f6f1b EZ |
1341 | int from = 2 * (xfrom + screen_size_X * ypos) + ScreenPrimary; |
1342 | int to = 2 * (xto + screen_size_X * ypos) + ScreenPrimary; | |
1343 | ||
1344 | if (from == to || len <= 0) | |
1345 | return; | |
1346 | ||
1347 | _farsetsel (_dos_ds); | |
1348 | ||
1349 | /* The source and destination might overlap, so we need to move | |
1350 | glyphs non-destructively. */ | |
1351 | if (from > to) | |
1352 | { | |
1353 | for ( ; len; from += 2, to += 2, len--) | |
1354 | _farnspokew (to, _farnspeekw (from)); | |
1355 | } | |
1356 | else | |
1357 | { | |
1358 | from += (len - 1) * 2; | |
1359 | to += (len - 1) * 2; | |
1360 | for ( ; len; from -= 2, to -= 2, len--) | |
1361 | _farnspokew (to, _farnspeekw (from)); | |
1362 | } | |
1363 | if (screen_virtual_segment) | |
1364 | dosv_refresh_virtual_screen (ypos * screen_size_X * 2, screen_size_X); | |
1365 | } | |
1366 | ||
1367 | /* Insert and delete glyphs. */ | |
aa9ce936 | 1368 | static void |
3a8ce822 | 1369 | IT_insert_glyphs (struct frame *f, struct glyph *start, int len) |
aa9ce936 | 1370 | { |
c77f6f1b EZ |
1371 | int shift_by_width = screen_size_X - (new_pos_X + len); |
1372 | ||
1373 | /* Shift right the glyphs from the nominal cursor position to the | |
1374 | end of this line. */ | |
1375 | IT_copy_glyphs (new_pos_X, new_pos_X + len, shift_by_width, new_pos_Y); | |
1376 | ||
1377 | /* Now write the glyphs to be inserted. */ | |
3e1944a3 | 1378 | IT_write_glyphs (f, start, len); |
aa9ce936 EZ |
1379 | } |
1380 | ||
1381 | static void | |
3a8ce822 | 1382 | IT_delete_glyphs (struct frame *f, int n) |
aa9ce936 | 1383 | { |
1088b922 | 1384 | emacs_abort (); |
aa9ce936 EZ |
1385 | } |
1386 | ||
211c7152 | 1387 | /* set-window-configuration on window.c needs this. */ |
3bb1f22f | 1388 | void |
3a8ce822 | 1389 | x_set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval) |
3bb1f22f | 1390 | { |
211c7152 EZ |
1391 | set_menu_bar_lines (f, value, oldval); |
1392 | } | |
3bb1f22f | 1393 | |
984f5aaa | 1394 | /* This was copied from xfaces.c */ |
3bb1f22f | 1395 | |
984f5aaa EZ |
1396 | extern Lisp_Object Qbackground_color; |
1397 | extern Lisp_Object Qforeground_color; | |
8ba01a32 | 1398 | Lisp_Object Qreverse; |
211c7152 | 1399 | extern Lisp_Object Qtitle; |
3bb1f22f | 1400 | |
48ffe371 RS |
1401 | /* IT_set_terminal_modes is called when emacs is started, |
1402 | resumed, and whenever the screen is redrawn! */ | |
f32d4091 | 1403 | |
71f65669 | 1404 | static void |
3e1944a3 | 1405 | IT_set_terminal_modes (struct terminal *term) |
f32d4091 | 1406 | { |
3e1944a3 EZ |
1407 | struct tty_display_info *tty; |
1408 | ||
1409 | /* If called with initial terminal, it's too early to do anything | |
1410 | useful. */ | |
1411 | if (term->type == output_initial) | |
1412 | return; | |
1413 | ||
1414 | tty = term->display_info.tty; | |
1415 | ||
1416 | if (tty->termscript) | |
1417 | fprintf (tty->termscript, "\n<SET_TERM>"); | |
f32d4091 KS |
1418 | |
1419 | screen_size_X = ScreenCols (); | |
1420 | screen_size_Y = ScreenRows (); | |
1421 | screen_size = screen_size_X * screen_size_Y; | |
56e19ec4 | 1422 | |
f32d4091 KS |
1423 | new_pos_X = new_pos_Y = 0; |
1424 | current_pos_X = current_pos_Y = -1; | |
1425 | ||
1426 | if (term_setup_done) | |
1427 | return; | |
1428 | term_setup_done = 1; | |
56e19ec4 | 1429 | |
f32d4091 KS |
1430 | startup_screen_size_X = screen_size_X; |
1431 | startup_screen_size_Y = screen_size_Y; | |
c9adab25 | 1432 | startup_screen_attrib = ScreenAttrib; |
f32d4091 | 1433 | |
039274cf EZ |
1434 | /* Is DOS/V (or any other RSIS software which relocates |
1435 | the screen) installed? */ | |
1436 | { | |
1437 | unsigned short es_value; | |
1438 | __dpmi_regs regs; | |
1439 | ||
1440 | regs.h.ah = 0xfe; /* get relocated screen address */ | |
1441 | if (ScreenPrimary == 0xb0000UL || ScreenPrimary == 0xb8000UL) | |
1442 | regs.x.es = (ScreenPrimary >> 4) & 0xffff; | |
1443 | else if (screen_old_address) /* already switched to Japanese mode once */ | |
1444 | regs.x.es = (screen_old_address >> 4) & 0xffff; | |
1445 | else | |
1446 | regs.x.es = ScreenMode () == 7 ? 0xb000 : 0xb800; | |
1447 | regs.x.di = 0; | |
1448 | es_value = regs.x.es; | |
1449 | __dpmi_int (0x10, ®s); | |
1450 | ||
d1d5dc19 | 1451 | if (regs.x.es != es_value) |
039274cf | 1452 | { |
d1d5dc19 EZ |
1453 | /* screen_old_address is only set if ScreenPrimary does NOT |
1454 | already point to the relocated buffer address returned by | |
1455 | the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets | |
1456 | ScreenPrimary to that address at startup under DOS/V. */ | |
891ef8f7 | 1457 | if (regs.x.es != ((ScreenPrimary >> 4) & 0xffff)) |
d1d5dc19 | 1458 | screen_old_address = ScreenPrimary; |
039274cf EZ |
1459 | screen_virtual_segment = regs.x.es; |
1460 | screen_virtual_offset = regs.x.di; | |
1461 | ScreenPrimary = (screen_virtual_segment << 4) + screen_virtual_offset; | |
1462 | } | |
1463 | } | |
039274cf | 1464 | |
f32d4091 KS |
1465 | ScreenGetCursor (&startup_pos_Y, &startup_pos_X); |
1466 | ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2)); | |
1467 | ||
76ac1508 | 1468 | bright_bg (); |
f32d4091 KS |
1469 | } |
1470 | ||
48ffe371 RS |
1471 | /* IT_reset_terminal_modes is called when emacs is |
1472 | suspended or killed. */ | |
f32d4091 | 1473 | |
71f65669 | 1474 | static void |
3e1944a3 | 1475 | IT_reset_terminal_modes (struct terminal *term) |
f32d4091 | 1476 | { |
c9adab25 KH |
1477 | int display_row_start = (int) ScreenPrimary; |
1478 | int saved_row_len = startup_screen_size_X * 2; | |
56e19ec4 | 1479 | int update_row_len = ScreenCols () * 2, current_rows = ScreenRows (); |
c9adab25 KH |
1480 | int to_next_row = update_row_len; |
1481 | unsigned char *saved_row = startup_screen_buffer; | |
56e19ec4 | 1482 | int cursor_pos_X = ScreenCols () - 1, cursor_pos_Y = ScreenRows () - 1; |
3e1944a3 | 1483 | struct tty_display_info *tty = term->display_info.tty; |
c9adab25 | 1484 | |
3e1944a3 EZ |
1485 | if (tty->termscript) |
1486 | fprintf (tty->termscript, "\n<RESET_TERM>"); | |
f32d4091 | 1487 | |
f32d4091 KS |
1488 | if (!term_setup_done) |
1489 | return; | |
56e19ec4 | 1490 | |
c9adab25 | 1491 | mouse_off (); |
b36701cc RS |
1492 | |
1493 | /* Leave the video system in the same state as we found it, | |
1494 | as far as the blink/bright-background bit is concerned. */ | |
1495 | maybe_enable_blinking (); | |
06b1ea13 | 1496 | |
c9adab25 KH |
1497 | /* We have a situation here. |
1498 | We cannot just do ScreenUpdate(startup_screen_buffer) because | |
1499 | the luser could have changed screen dimensions inside Emacs | |
1500 | and failed (or didn't want) to restore them before killing | |
1501 | Emacs. ScreenUpdate() uses the *current* screen dimensions and | |
1502 | thus will happily use memory outside what was allocated for | |
1503 | `startup_screen_buffer'. | |
1504 | Thus we only restore as much as the current screen dimensions | |
1505 | can hold, and clear the rest (if the saved screen is smaller than | |
1506 | the current) with the color attribute saved at startup. The cursor | |
1507 | is also restored within the visible dimensions. */ | |
1508 | ||
1509 | ScreenAttrib = startup_screen_attrib; | |
c9adab25 | 1510 | |
06b1ea13 EZ |
1511 | /* Don't restore the screen if we are exiting less than 2 seconds |
1512 | after startup: we might be crashing, and the screen might show | |
1513 | some vital clues to what's wrong. */ | |
1514 | if (clock () - startup_time >= 2*CLOCKS_PER_SEC) | |
c9adab25 | 1515 | { |
06b1ea13 | 1516 | ScreenClear (); |
039274cf | 1517 | if (screen_virtual_segment) |
06b1ea13 EZ |
1518 | dosv_refresh_virtual_screen (0, screen_size); |
1519 | ||
1520 | if (update_row_len > saved_row_len) | |
1521 | update_row_len = saved_row_len; | |
1522 | if (current_rows > startup_screen_size_Y) | |
1523 | current_rows = startup_screen_size_Y; | |
1524 | ||
3e1944a3 EZ |
1525 | if (tty->termscript) |
1526 | fprintf (tty->termscript, "<SCREEN RESTORED (dimensions=%dx%d)>\n", | |
06b1ea13 EZ |
1527 | update_row_len / 2, current_rows); |
1528 | ||
1529 | while (current_rows--) | |
1530 | { | |
1531 | dosmemput (saved_row, update_row_len, display_row_start); | |
1532 | if (screen_virtual_segment) | |
1533 | dosv_refresh_virtual_screen (display_row_start - ScreenPrimary, | |
1534 | update_row_len / 2); | |
1535 | saved_row += saved_row_len; | |
1536 | display_row_start += to_next_row; | |
1537 | } | |
c9adab25 KH |
1538 | } |
1539 | if (startup_pos_X < cursor_pos_X) | |
1540 | cursor_pos_X = startup_pos_X; | |
1541 | if (startup_pos_Y < cursor_pos_Y) | |
1542 | cursor_pos_Y = startup_pos_Y; | |
1543 | ||
1544 | ScreenSetCursor (cursor_pos_Y, cursor_pos_X); | |
1545 | xfree (startup_screen_buffer); | |
3e1944a3 | 1546 | startup_screen_buffer = NULL; |
f32d4091 KS |
1547 | |
1548 | term_setup_done = 0; | |
1549 | } | |
1550 | ||
71f65669 | 1551 | static void |
3e1944a3 | 1552 | IT_set_terminal_window (struct frame *f, int foo) |
f32d4091 KS |
1553 | { |
1554 | } | |
1555 | ||
20db1522 | 1556 | /* Remember the screen colors of the current frame, to serve as the |
2d764c78 | 1557 | default colors for newly-created frames. */ |
2d764c78 EZ |
1558 | DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors, |
1559 | Smsdos_remember_default_colors, 1, 1, 0, | |
70da46c3 | 1560 | doc: /* Remember the screen colors of the current frame. */) |
5842a27b | 1561 | (Lisp_Object frame) |
2d764c78 | 1562 | { |
2d764c78 EZ |
1563 | struct frame *f; |
1564 | ||
b7826503 | 1565 | CHECK_FRAME (frame); |
f12dae2f | 1566 | f = XFRAME (frame); |
2d764c78 | 1567 | |
ff12cd1d EZ |
1568 | /* This function is called after applying default-frame-alist to the |
1569 | initial frame. At that time, if reverse-colors option was | |
1570 | specified in default-frame-alist, it was already applied, and | |
f12dae2f EZ |
1571 | frame colors are reversed. */ |
1572 | initial_screen_colors[0] = FRAME_FOREGROUND_PIXEL (f); | |
1573 | initial_screen_colors[1] = FRAME_BACKGROUND_PIXEL (f); | |
891ef8f7 EZ |
1574 | |
1575 | return Qnil; | |
2d764c78 EZ |
1576 | } |
1577 | ||
f32d4091 | 1578 | void |
3a8ce822 | 1579 | IT_set_frame_parameters (struct frame *f, Lisp_Object alist) |
f32d4091 KS |
1580 | { |
1581 | Lisp_Object tail; | |
56e19ec4 | 1582 | int i, j, length = XINT (Flength (alist)); |
db722735 | 1583 | Lisp_Object *parms |
663e2b3f | 1584 | = (Lisp_Object *) alloca (length * word_size); |
db722735 | 1585 | Lisp_Object *values |
663e2b3f | 1586 | = (Lisp_Object *) alloca (length * word_size); |
2d764c78 | 1587 | /* Do we have to reverse the foreground and background colors? */ |
e69b0960 | 1588 | int reverse = EQ (Fcdr (Fassq (Qreverse, f->param_alist)), Qt); |
2d764c78 | 1589 | int redraw = 0, fg_set = 0, bg_set = 0; |
56e19ec4 | 1590 | unsigned long orig_fg, orig_bg; |
3e1944a3 | 1591 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 EZ |
1592 | |
1593 | /* If we are creating a new frame, begin with the original screen colors | |
1594 | used for the initial frame. */ | |
76ea4cc9 | 1595 | if (!f->default_face_done_p |
2d764c78 EZ |
1596 | && initial_screen_colors[0] != -1 && initial_screen_colors[1] != -1) |
1597 | { | |
1598 | FRAME_FOREGROUND_PIXEL (f) = initial_screen_colors[0]; | |
1599 | FRAME_BACKGROUND_PIXEL (f) = initial_screen_colors[1]; | |
f12dae2f | 1600 | init_frame_faces (f); |
76ea4cc9 | 1601 | f->default_face_done_p = 1; |
2d764c78 | 1602 | } |
76ea4cc9 EZ |
1603 | orig_fg = reverse ? FRAME_BACKGROUND_PIXEL (f) : FRAME_FOREGROUND_PIXEL (f); |
1604 | orig_bg = reverse ? FRAME_FOREGROUND_PIXEL (f) : FRAME_BACKGROUND_PIXEL (f); | |
db722735 RS |
1605 | |
1606 | /* Extract parm names and values into those vectors. */ | |
1607 | i = 0; | |
7d7bbefd | 1608 | for (tail = alist; CONSP (tail); tail = XCDR (tail)) |
f32d4091 | 1609 | { |
34348bd4 | 1610 | Lisp_Object elt = XCAR (tail); |
db722735 | 1611 | parms[i] = Fcar (elt); |
b7826503 | 1612 | CHECK_SYMBOL (parms[i]); |
db722735 RS |
1613 | values[i] = Fcdr (elt); |
1614 | i++; | |
1615 | } | |
1616 | ||
2d764c78 | 1617 | j = i; |
db722735 | 1618 | |
2d764c78 EZ |
1619 | for (i = 0; i < j; i++) |
1620 | { | |
1e21fe48 EZ |
1621 | Lisp_Object prop, val; |
1622 | ||
1623 | prop = parms[i]; | |
1624 | val = values[i]; | |
2d764c78 | 1625 | |
8ba01a32 | 1626 | if (EQ (prop, Qreverse)) |
2d764c78 EZ |
1627 | reverse = EQ (val, Qt); |
1628 | } | |
546701f5 | 1629 | |
76ea4cc9 | 1630 | if (tty->termscript && reverse) |
3e1944a3 | 1631 | fprintf (tty->termscript, "<INVERSE-VIDEO>\n"); |
2d764c78 EZ |
1632 | |
1633 | /* Now process the alist elements in reverse of specified order. */ | |
db722735 RS |
1634 | for (i--; i >= 0; i--) |
1635 | { | |
76ea4cc9 | 1636 | Lisp_Object prop, val; |
1e21fe48 EZ |
1637 | |
1638 | prop = parms[i]; | |
1639 | val = values[i]; | |
f32d4091 | 1640 | |
4e825084 | 1641 | if (EQ (prop, Qforeground_color)) |
f32d4091 | 1642 | { |
76ea4cc9 | 1643 | unsigned long new_color = load_color (f, NULL, val, reverse |
2d764c78 EZ |
1644 | ? LFACE_BACKGROUND_INDEX |
1645 | : LFACE_FOREGROUND_INDEX); | |
3b620731 EZ |
1646 | if (new_color != FACE_TTY_DEFAULT_COLOR |
1647 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
1648 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 1649 | { |
76ea4cc9 EZ |
1650 | if (!reverse) |
1651 | { | |
1652 | FRAME_FOREGROUND_PIXEL (f) = new_color; | |
1653 | /* Make sure the foreground of the default face for | |
1654 | this frame is changed as well. */ | |
1655 | update_face_from_frame_parameter (f, Qforeground_color, val); | |
1656 | fg_set = 1; | |
1657 | if (tty->termscript) | |
1658 | fprintf (tty->termscript, "<FGCOLOR %lu>\n", new_color); | |
1659 | } | |
1660 | else | |
1661 | { | |
1662 | FRAME_BACKGROUND_PIXEL (f) = new_color; | |
1663 | update_face_from_frame_parameter (f, Qbackground_color, val); | |
1664 | bg_set = 1; | |
1665 | if (tty->termscript) | |
1666 | fprintf (tty->termscript, "<BGCOLOR %lu>\n", new_color); | |
1667 | } | |
f32d4091 KS |
1668 | redraw = 1; |
1669 | } | |
1670 | } | |
4e825084 | 1671 | else if (EQ (prop, Qbackground_color)) |
f32d4091 | 1672 | { |
76ea4cc9 | 1673 | unsigned long new_color = load_color (f, NULL, val, reverse |
2d764c78 EZ |
1674 | ? LFACE_FOREGROUND_INDEX |
1675 | : LFACE_BACKGROUND_INDEX); | |
3b620731 EZ |
1676 | if (new_color != FACE_TTY_DEFAULT_COLOR |
1677 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
1678 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 1679 | { |
76ea4cc9 EZ |
1680 | if (!reverse) |
1681 | { | |
1682 | FRAME_BACKGROUND_PIXEL (f) = new_color; | |
1683 | /* Make sure the background of the default face for | |
1684 | this frame is changed as well. */ | |
1685 | bg_set = 1; | |
1686 | update_face_from_frame_parameter (f, Qbackground_color, val); | |
1687 | if (tty->termscript) | |
1688 | fprintf (tty->termscript, "<BGCOLOR %lu>\n", new_color); | |
1689 | } | |
1690 | else | |
1691 | { | |
1692 | FRAME_FOREGROUND_PIXEL (f) = new_color; | |
1693 | fg_set = 1; | |
1694 | update_face_from_frame_parameter (f, Qforeground_color, val); | |
1695 | if (tty->termscript) | |
1696 | fprintf (tty->termscript, "<FGCOLOR %lu>\n", new_color); | |
1697 | } | |
f32d4091 KS |
1698 | redraw = 1; |
1699 | } | |
1700 | } | |
211c7152 EZ |
1701 | else if (EQ (prop, Qtitle)) |
1702 | { | |
1703 | x_set_title (f, val); | |
3e1944a3 EZ |
1704 | if (tty->termscript) |
1705 | fprintf (tty->termscript, "<TITLE: %s>\n", SDATA (val)); | |
211c7152 | 1706 | } |
8ba01a32 EZ |
1707 | else if (EQ (prop, Qcursor_type)) |
1708 | { | |
1709 | IT_set_cursor_type (f, val); | |
3e1944a3 EZ |
1710 | if (tty->termscript) |
1711 | fprintf (tty->termscript, "<CTYPE: %s>\n", | |
891ef8f7 EZ |
1712 | EQ (val, Qbar) |
1713 | || EQ (val, Qhbar) | |
1714 | || (CONSP (val) && (EQ (XCAR (val), Qbar) | |
1715 | || EQ (XCAR (val), Qhbar))) | |
8ba01a32 EZ |
1716 | ? "bar" : "box"); |
1717 | } | |
3e1944a3 EZ |
1718 | else if (EQ (prop, Qtty_type)) |
1719 | { | |
1720 | internal_terminal_init (); | |
1721 | if (tty->termscript) | |
1722 | fprintf (tty->termscript, "<TERM_INIT done, TTY_TYPE: %.*s>\n", | |
1723 | SBYTES (val), SDATA (val)); | |
1724 | } | |
db722735 | 1725 | store_frame_param (f, prop, val); |
2d764c78 | 1726 | } |
db722735 | 1727 | |
2d764c78 EZ |
1728 | /* If they specified "reverse", but not the colors, we need to swap |
1729 | the current frame colors. */ | |
76ea4cc9 | 1730 | if (reverse) |
2d764c78 EZ |
1731 | { |
1732 | if (!fg_set) | |
1733 | { | |
76ea4cc9 EZ |
1734 | FRAME_FOREGROUND_PIXEL (f) = orig_bg; |
1735 | update_face_from_frame_parameter (f, Qforeground_color, | |
1736 | tty_color_name (f, orig_bg)); | |
2d764c78 EZ |
1737 | redraw = 1; |
1738 | } | |
1739 | if (!bg_set) | |
1740 | { | |
76ea4cc9 EZ |
1741 | FRAME_BACKGROUND_PIXEL (f) = orig_fg; |
1742 | update_face_from_frame_parameter (f, Qbackground_color, | |
1743 | tty_color_name (f, orig_fg)); | |
2d764c78 EZ |
1744 | redraw = 1; |
1745 | } | |
f32d4091 KS |
1746 | } |
1747 | ||
1748 | if (redraw) | |
1749 | { | |
2d764c78 | 1750 | face_change_count++; /* forces xdisp.c to recompute basic faces */ |
5e617bc2 | 1751 | if (f == SELECTED_FRAME ()) |
3bb1f22f | 1752 | redraw_frame (f); |
f32d4091 KS |
1753 | } |
1754 | } | |
1755 | ||
a7cf9151 EZ |
1756 | extern void init_frame_faces (FRAME_PTR); |
1757 | ||
f32d4091 KS |
1758 | #endif /* !HAVE_X_WINDOWS */ |
1759 | ||
1760 | ||
48ffe371 RS |
1761 | /* Do we need the internal terminal? */ |
1762 | ||
f32d4091 | 1763 | void |
3a8ce822 | 1764 | internal_terminal_init (void) |
f32d4091 | 1765 | { |
2306a735 | 1766 | static int init_needed = 1; |
56e19ec4 | 1767 | char *term = getenv ("TERM"), *colors; |
5e617bc2 | 1768 | struct frame *sf = SELECTED_FRAME (); |
3e1944a3 | 1769 | struct tty_display_info *tty; |
f32d4091 KS |
1770 | |
1771 | #ifdef HAVE_X_WINDOWS | |
1772 | if (!inhibit_window_system) | |
1773 | return; | |
1774 | #endif | |
1775 | ||
3e1944a3 EZ |
1776 | /* If this is the initial terminal, we are done here. */ |
1777 | if (sf->output_method == output_initial) | |
1778 | return; | |
1779 | ||
f32d4091 KS |
1780 | internal_terminal |
1781 | = (!noninteractive) && term && !strcmp (term, "internal"); | |
1782 | ||
f32d4091 KS |
1783 | #ifndef HAVE_X_WINDOWS |
1784 | if (!internal_terminal || inhibit_window_system) | |
1785 | { | |
2d764c78 | 1786 | sf->output_method = output_termcap; |
f32d4091 KS |
1787 | return; |
1788 | } | |
1789 | ||
3e1944a3 | 1790 | tty = FRAME_TTY (sf); |
15dbb4d6 | 1791 | kset_window_system (current_kboard, Qpc); |
f12dae2f | 1792 | sf->output_method = output_msdos_raw; |
2306a735 | 1793 | if (init_needed) |
3e1944a3 | 1794 | { |
2306a735 EZ |
1795 | if (!tty->termscript && getenv ("EMACSTEST")) |
1796 | tty->termscript = fopen (getenv ("EMACSTEST"), "wt"); | |
1797 | if (tty->termscript) | |
1798 | { | |
1799 | time_t now = time (NULL); | |
1800 | struct tm *tnow = localtime (&now); | |
1801 | char tbuf[100]; | |
3e1944a3 | 1802 | |
2306a735 EZ |
1803 | strftime (tbuf, sizeof (tbuf) - 1, "%a %b %e %Y %H:%M:%S %Z", tnow); |
1804 | fprintf (tty->termscript, "\nEmacs session started at %s\n", tbuf); | |
1805 | fprintf (tty->termscript, "=====================\n\n"); | |
1806 | } | |
3e1944a3 | 1807 | |
2306a735 | 1808 | Vinitial_window_system = Qpc; |
23415acf | 1809 | Vwindow_system_version = make_number (24); /* RE Emacs version */ |
2306a735 | 1810 | tty->terminal->type = output_msdos_raw; |
039274cf | 1811 | |
2306a735 EZ |
1812 | /* If Emacs was dumped on DOS/V machine, forget the stale VRAM |
1813 | address. */ | |
1814 | screen_old_address = 0; | |
039274cf | 1815 | |
2306a735 EZ |
1816 | /* Forget the stale screen colors as well. */ |
1817 | initial_screen_colors[0] = initial_screen_colors[1] = -1; | |
2d764c78 | 1818 | |
2306a735 EZ |
1819 | FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = 7; /* White */ |
1820 | FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = 0; /* Black */ | |
1821 | bright_bg (); | |
1822 | colors = getenv ("EMACSCOLORS"); | |
1823 | if (colors && strlen (colors) >= 2) | |
1824 | { | |
1825 | /* The colors use 4 bits each (we enable bright background). */ | |
1826 | if (isdigit (colors[0])) | |
1827 | colors[0] -= '0'; | |
1828 | else if (isxdigit (colors[0])) | |
1829 | colors[0] -= (isupper (colors[0]) ? 'A' : 'a') - 10; | |
1830 | if (colors[0] >= 0 && colors[0] < 16) | |
1831 | FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = colors[0]; | |
1832 | if (isdigit (colors[1])) | |
1833 | colors[1] -= '0'; | |
1834 | else if (isxdigit (colors[1])) | |
1835 | colors[1] -= (isupper (colors[1]) ? 'A' : 'a') - 10; | |
1836 | if (colors[1] >= 0 && colors[1] < 16) | |
1837 | FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = colors[1]; | |
1838 | } | |
34574c02 | 1839 | the_only_display_info.mouse_highlight.mouse_face_mouse_frame = NULL; |
34574c02 EZ |
1840 | the_only_display_info.mouse_highlight.mouse_face_beg_row = |
1841 | the_only_display_info.mouse_highlight.mouse_face_beg_col = -1; | |
1842 | the_only_display_info.mouse_highlight.mouse_face_end_row = | |
1843 | the_only_display_info.mouse_highlight.mouse_face_end_col = -1; | |
1844 | the_only_display_info.mouse_highlight.mouse_face_face_id = DEFAULT_FACE_ID; | |
1845 | the_only_display_info.mouse_highlight.mouse_face_window = Qnil; | |
1846 | the_only_display_info.mouse_highlight.mouse_face_mouse_x = | |
1847 | the_only_display_info.mouse_highlight.mouse_face_mouse_y = 0; | |
1848 | the_only_display_info.mouse_highlight.mouse_face_defer = 0; | |
1849 | the_only_display_info.mouse_highlight.mouse_face_hidden = 0; | |
2306a735 EZ |
1850 | |
1851 | if (have_mouse) /* detected in dos_ttraw, which see */ | |
1852 | { | |
1853 | have_mouse = 1; /* enable mouse */ | |
1854 | mouse_visible = 0; | |
1855 | mouse_setup_buttons (mouse_button_count); | |
1856 | tty->terminal->mouse_position_hook = &mouse_get_pos; | |
1857 | mouse_init (); | |
1858 | } | |
f32d4091 | 1859 | |
2306a735 EZ |
1860 | if (tty->termscript && screen_size) |
1861 | fprintf (tty->termscript, "<SCREEN SAVED (dimensions=%dx%d)>\n", | |
1862 | screen_size_X, screen_size_Y); | |
f32d4091 | 1863 | |
f12dae2f | 1864 | init_frame_faces (sf); |
2306a735 EZ |
1865 | init_needed = 0; |
1866 | } | |
f32d4091 KS |
1867 | #endif |
1868 | } | |
1869 | ||
3e1944a3 EZ |
1870 | void |
1871 | initialize_msdos_display (struct terminal *term) | |
1872 | { | |
1873 | term->rif = 0; /* we don't support window-based display */ | |
1874 | term->cursor_to_hook = term->raw_cursor_to_hook = IT_cursor_to; | |
1875 | term->clear_to_end_hook = IT_clear_to_end; | |
1876 | term->clear_frame_hook = IT_clear_screen; | |
1877 | term->clear_end_of_line_hook = IT_clear_end_of_line; | |
1878 | term->ins_del_lines_hook = 0; | |
1879 | term->insert_glyphs_hook = IT_insert_glyphs; | |
1880 | term->write_glyphs_hook = IT_write_glyphs; | |
1881 | term->delete_glyphs_hook = IT_delete_glyphs; | |
1882 | term->ring_bell_hook = IT_ring_bell; | |
1883 | term->reset_terminal_modes_hook = IT_reset_terminal_modes; | |
1884 | term->set_terminal_modes_hook = IT_set_terminal_modes; | |
1885 | term->set_terminal_window_hook = IT_set_terminal_window; | |
1886 | term->update_begin_hook = IT_update_begin; | |
1887 | term->update_end_hook = IT_update_end; | |
1888 | term->frame_up_to_date_hook = IT_frame_up_to_date; | |
1889 | term->mouse_position_hook = 0; /* set later by dos_ttraw */ | |
1890 | term->frame_rehighlight_hook = 0; | |
1891 | term->frame_raise_lower_hook = 0; | |
1892 | term->set_vertical_scroll_bar_hook = 0; | |
1893 | term->condemn_scroll_bars_hook = 0; | |
1894 | term->redeem_scroll_bar_hook = 0; | |
1895 | term->judge_scroll_bars_hook = 0; | |
1896 | term->read_socket_hook = &tty_read_avail_input; /* from keyboard.c */ | |
1897 | } | |
1898 | ||
3a8ce822 EZ |
1899 | int |
1900 | dos_get_saved_screen (char **screen, int *rows, int *cols) | |
f32d4091 KS |
1901 | { |
1902 | #ifndef HAVE_X_WINDOWS | |
1903 | *screen = startup_screen_buffer; | |
1904 | *cols = startup_screen_size_X; | |
1905 | *rows = startup_screen_size_Y; | |
039274cf | 1906 | return *screen != (char *)0; |
f32d4091 KS |
1907 | #else |
1908 | return 0; | |
56e19ec4 | 1909 | #endif |
f32d4091 | 1910 | } |
3bb1f22f RS |
1911 | |
1912 | #ifndef HAVE_X_WINDOWS | |
1913 | ||
1914 | /* We are not X, but we can emulate it well enough for our needs... */ | |
1915 | void | |
1916 | check_x (void) | |
1917 | { | |
5e617bc2 | 1918 | if (! FRAME_MSDOS_P (SELECTED_FRAME ())) |
2d764c78 | 1919 | error ("Not running under a window system"); |
3bb1f22f RS |
1920 | } |
1921 | ||
1922 | #endif | |
1923 | ||
5063b150 | 1924 | \f |
f32d4091 KS |
1925 | /* ----------------------- Keyboard control ---------------------- |
1926 | * | |
1927 | * Keymaps reflect the following keyboard layout: | |
1928 | * | |
1929 | * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS | |
1930 | * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41) | |
1931 | * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET | |
1932 | * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT | |
1933 | * SPACE | |
1934 | */ | |
1935 | ||
d1d5dc19 EZ |
1936 | #define Ignore 0x0000 |
1937 | #define Normal 0x0000 /* normal key - alt changes scan-code */ | |
1938 | #define FctKey 0x1000 /* func key if c == 0, else c */ | |
1939 | #define Special 0x2000 /* func key even if c != 0 */ | |
1940 | #define ModFct 0x3000 /* special if mod-keys, else 'c' */ | |
1941 | #define Map 0x4000 /* alt scan-code, map to unshift/shift key */ | |
1942 | #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */ | |
1943 | #define Grey 0x6000 /* Grey keypad key */ | |
1944 | ||
1945 | #define Alt 0x0100 /* alt scan-code */ | |
1946 | #define Ctrl 0x0200 /* ctrl scan-code */ | |
1947 | #define Shift 0x0400 /* shift scan-code */ | |
1948 | ||
db9cd97a | 1949 | static int extended_kbd; /* 101 (102) keyboard present. */ |
f32d4091 | 1950 | |
d1d5dc19 EZ |
1951 | struct kbd_translate { |
1952 | unsigned char sc; | |
1953 | unsigned char ch; | |
1954 | unsigned short code; | |
1955 | }; | |
1956 | ||
f32d4091 KS |
1957 | struct dos_keyboard_map |
1958 | { | |
1959 | char *unshifted; | |
1960 | char *shifted; | |
1961 | char *alt_gr; | |
d1d5dc19 | 1962 | struct kbd_translate *translate_table; |
f32d4091 KS |
1963 | }; |
1964 | ||
1965 | ||
1966 | static struct dos_keyboard_map us_keyboard = { | |
1967 | /* 0 1 2 3 4 5 */ | |
1968 | /* 01234567890123456789012345678901234567890 12345678901234 */ | |
1969 | "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ", | |
1970 | /* 0123456789012345678901234567890123456789 012345678901234 */ | |
1971 | "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ", | |
d1d5dc19 EZ |
1972 | 0, /* no Alt-Gr key */ |
1973 | 0 /* no translate table */ | |
f32d4091 KS |
1974 | }; |
1975 | ||
1976 | static struct dos_keyboard_map fr_keyboard = { | |
1977 | /* 0 1 2 3 4 5 */ | |
1978 | /* 012 3456789012345678901234567890123456789012345678901234 */ | |
1979 |