Commit | Line | Data |
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c6a6499f | 1 | /* MS-DOS specific C utilities. -*- coding: raw-text -*- |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, |
114f9c96 | 3 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
8cabe764 | 4 | Free Software Foundation, Inc. |
1b94449f RS |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
1b94449f | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
1b94449f RS |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
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 | |
d7306fe6 | 29 | #include <setjmp.h> |
1b94449f RS |
30 | #include "lisp.h" |
31 | #include <stdio.h> | |
32 | #include <stdlib.h> | |
06b1ea13 | 33 | #include <time.h> |
1b94449f RS |
34 | #include <sys/param.h> |
35 | #include <sys/time.h> | |
36 | #include <dos.h> | |
d21e67b5 | 37 | #include <errno.h> |
72af86bd | 38 | #include <string.h> /* for memset and string functions */ |
d21e67b5 | 39 | #include <sys/stat.h> /* for _fixpath */ |
a7cf9151 | 40 | #include <unistd.h> /* for chdir, dup, dup2, etc. */ |
bf794306 | 41 | #include <dir.h> /* for getdisk */ |
affa509c | 42 | #pragma pack(0) /* dir.h does a pack(4), which isn't GCC's default */ |
1bd7b2c7 | 43 | #include <fcntl.h> |
a7cf9151 | 44 | #include <io.h> /* for setmode */ |
fc171623 KH |
45 | #include <dpmi.h> /* for __dpmi_xxx stuff */ |
46 | #include <sys/farptr.h> /* for _farsetsel, _farnspokeb */ | |
d21e67b5 | 47 | #include <libc/dosio.h> /* for _USE_LFN */ |
a7cf9151 | 48 | #include <conio.h> /* for cputs */ |
1bd7b2c7 | 49 | |
1b94449f RS |
50 | #include "msdos.h" |
51 | #include "systime.h" | |
3e1944a3 | 52 | #include "frame.h" |
1b94449f | 53 | #include "termhooks.h" |
aa9ce936 | 54 | #include "termchar.h" |
87485d6f | 55 | #include "dispextern.h" |
c77f6f1b | 56 | #include "dosfns.h" |
87485d6f | 57 | #include "termopts.h" |
83be827a | 58 | #include "character.h" |
aa9ce936 EZ |
59 | #include "coding.h" |
60 | #include "disptab.h" | |
87485d6f | 61 | #include "window.h" |
fc171623 KH |
62 | #include "buffer.h" |
63 | #include "commands.h" | |
41ad069b | 64 | #include "blockinput.h" |
97dd288b | 65 | #include "keyboard.h" |
6b61353c | 66 | #include "intervals.h" |
1b94449f RS |
67 | #include <go32.h> |
68 | #include <pc.h> | |
69 | #include <ctype.h> | |
70 | /* #include <process.h> */ | |
71 | /* Damn that local process.h! Instead we can define P_WAIT ourselves. */ | |
72 | #define P_WAIT 1 | |
73 | ||
d21e67b5 RS |
74 | #ifndef _USE_LFN |
75 | #define _USE_LFN 0 | |
76 | #endif | |
77 | ||
b36701cc RS |
78 | #ifndef _dos_ds |
79 | #define _dos_ds _go32_info_block.selector_for_linear_memory | |
80 | #endif | |
81 | ||
8748735b | 82 | #include <signal.h> |
417a04bb | 83 | #include "syssignal.h" |
8748735b | 84 | |
1bd7b2c7 RS |
85 | #ifndef SYSTEM_MALLOC |
86 | ||
87 | #ifdef GNU_MALLOC | |
88 | ||
89 | /* If other `malloc' than ours is used, force our `sbrk' behave like | |
90 | Unix programs expect (resize memory blocks to keep them contiguous). | |
91 | If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory, | |
92 | because that's what `gmalloc' expects to get. */ | |
93 | #include <crt0.h> | |
94 | ||
95 | #ifdef REL_ALLOC | |
96 | int _crt0_startup_flags = _CRT0_FLAG_UNIX_SBRK; | |
97 | #else /* not REL_ALLOC */ | |
98 | int _crt0_startup_flags = (_CRT0_FLAG_UNIX_SBRK | _CRT0_FLAG_FILL_SBRK_MEMORY); | |
99 | #endif /* not REL_ALLOC */ | |
100 | #endif /* GNU_MALLOC */ | |
101 | ||
102 | #endif /* not SYSTEM_MALLOC */ | |
aee81730 RS |
103 | |
104 | static unsigned long | |
3a8ce822 | 105 | event_timestamp (void) |
aee81730 RS |
106 | { |
107 | struct time t; | |
108 | unsigned long s; | |
56e19ec4 | 109 | |
aee81730 RS |
110 | gettime (&t); |
111 | s = t.ti_min; | |
112 | s *= 60; | |
113 | s += t.ti_sec; | |
114 | s *= 1000; | |
115 | s += t.ti_hund * 10; | |
56e19ec4 | 116 | |
aee81730 RS |
117 | return s; |
118 | } | |
119 | ||
f32d4091 KS |
120 | \f |
121 | /* ------------------------ Mouse control --------------------------- | |
122 | * | |
123 | * Coordinates are in screen positions and zero based. | |
124 | * Mouse buttons are numbered from left to right and also zero based. | |
125 | */ | |
1b94449f | 126 | |
0c3cfc51 EZ |
127 | /* This used to be in termhooks.h, but mainstream Emacs code no longer |
128 | uses it, and it was removed... */ | |
129 | #define NUM_MOUSE_BUTTONS (5) | |
130 | ||
f32d4091 KS |
131 | int have_mouse; /* 0: no, 1: enabled, -1: disabled */ |
132 | static int mouse_visible; | |
1b94449f | 133 | |
f32d4091 KS |
134 | static int mouse_last_x; |
135 | static int mouse_last_y; | |
1b94449f | 136 | |
f32d4091 KS |
137 | static int mouse_button_translate[NUM_MOUSE_BUTTONS]; |
138 | static int mouse_button_count; | |
1b94449f | 139 | |
f32d4091 | 140 | void |
3a8ce822 | 141 | mouse_on (void) |
1b94449f | 142 | { |
1b94449f | 143 | union REGS regs; |
1b94449f | 144 | |
f32d4091 | 145 | if (have_mouse > 0 && !mouse_visible) |
1b94449f | 146 | { |
3e1944a3 EZ |
147 | struct tty_display_info *tty = CURTTY (); |
148 | ||
149 | if (tty->termscript) | |
150 | fprintf (tty->termscript, "<M_ON>"); | |
f32d4091 KS |
151 | regs.x.ax = 0x0001; |
152 | int86 (0x33, ®s, ®s); | |
153 | mouse_visible = 1; | |
1b94449f | 154 | } |
1b94449f RS |
155 | } |
156 | ||
f32d4091 | 157 | void |
3a8ce822 | 158 | mouse_off (void) |
1b94449f | 159 | { |
f32d4091 | 160 | union REGS regs; |
1b94449f | 161 | |
f32d4091 | 162 | if (have_mouse > 0 && mouse_visible) |
1b94449f | 163 | { |
3e1944a3 EZ |
164 | struct tty_display_info *tty = CURTTY (); |
165 | ||
166 | if (tty->termscript) | |
167 | fprintf (tty->termscript, "<M_OFF>"); | |
f32d4091 KS |
168 | regs.x.ax = 0x0002; |
169 | int86 (0x33, ®s, ®s); | |
170 | mouse_visible = 0; | |
1b94449f | 171 | } |
1b94449f RS |
172 | } |
173 | ||
8f190436 EZ |
174 | static void |
175 | mouse_setup_buttons (int n_buttons) | |
176 | { | |
177 | if (n_buttons == 3) | |
178 | { | |
179 | mouse_button_count = 3; | |
180 | mouse_button_translate[0] = 0; /* Left */ | |
181 | mouse_button_translate[1] = 2; /* Middle */ | |
182 | mouse_button_translate[2] = 1; /* Right */ | |
183 | } | |
184 | else /* two, what else? */ | |
185 | { | |
186 | mouse_button_count = 2; | |
187 | mouse_button_translate[0] = 0; | |
188 | mouse_button_translate[1] = 1; | |
189 | } | |
190 | } | |
191 | ||
192 | DEFUN ("msdos-set-mouse-buttons", Fmsdos_set_mouse_buttons, Smsdos_set_mouse_buttons, | |
193 | 1, 1, "NSet number of mouse buttons to: ", | |
70da46c3 PJ |
194 | doc: /* Set the number of mouse buttons to use by Emacs. |
195 | This is useful with mice that report the number of buttons inconsistently, | |
196 | e.g., if the number of buttons is reported as 3, but Emacs only sees 2 of | |
197 | them. This happens with wheeled mice on Windows 9X, for example. */) | |
5842a27b | 198 | (Lisp_Object nbuttons) |
8f190436 | 199 | { |
e7522695 EZ |
200 | int n; |
201 | ||
b7826503 | 202 | CHECK_NUMBER (nbuttons); |
e7522695 EZ |
203 | n = XINT (nbuttons); |
204 | if (n < 2 || n > 3) | |
ebe061ca KS |
205 | xsignal2 (Qargs_out_of_range, |
206 | build_string ("only 2 or 3 mouse buttons are supported"), | |
207 | nbuttons); | |
e7522695 | 208 | mouse_setup_buttons (n); |
8f190436 EZ |
209 | return Qnil; |
210 | } | |
211 | ||
211c7152 EZ |
212 | static void |
213 | mouse_get_xy (int *x, int *y) | |
214 | { | |
215 | union REGS regs; | |
216 | ||
217 | regs.x.ax = 0x0003; | |
218 | int86 (0x33, ®s, ®s); | |
219 | *x = regs.x.cx / 8; | |
220 | *y = regs.x.dx / 8; | |
221 | } | |
222 | ||
f32d4091 | 223 | void |
3a8ce822 | 224 | mouse_moveto (int x, int y) |
1b94449f | 225 | { |
f32d4091 | 226 | union REGS regs; |
3e1944a3 | 227 | struct tty_display_info *tty = CURTTY (); |
1b94449f | 228 | |
3e1944a3 EZ |
229 | if (tty->termscript) |
230 | fprintf (tty->termscript, "<M_XY=%dx%d>", x, y); | |
f32d4091 KS |
231 | regs.x.ax = 0x0004; |
232 | mouse_last_x = regs.x.cx = x * 8; | |
233 | mouse_last_y = regs.x.dx = y * 8; | |
234 | int86 (0x33, ®s, ®s); | |
1b94449f RS |
235 | } |
236 | ||
f32d4091 | 237 | static int |
3a8ce822 | 238 | mouse_pressed (int b, int *xp, int *yp) |
1b94449f | 239 | { |
f32d4091 | 240 | union REGS regs; |
1b94449f | 241 | |
f32d4091 KS |
242 | if (b >= mouse_button_count) |
243 | return 0; | |
244 | regs.x.ax = 0x0005; | |
245 | regs.x.bx = mouse_button_translate[b]; | |
246 | int86 (0x33, ®s, ®s); | |
247 | if (regs.x.bx) | |
248 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
249 | return (regs.x.bx != 0); | |
1b94449f RS |
250 | } |
251 | ||
f32d4091 | 252 | static int |
3a8ce822 | 253 | mouse_released (int b, int *xp, int *yp) |
1b94449f RS |
254 | { |
255 | union REGS regs; | |
256 | ||
f32d4091 KS |
257 | if (b >= mouse_button_count) |
258 | return 0; | |
259 | regs.x.ax = 0x0006; | |
260 | regs.x.bx = mouse_button_translate[b]; | |
261 | int86 (0x33, ®s, ®s); | |
262 | if (regs.x.bx) | |
263 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
264 | return (regs.x.bx != 0); | |
1b94449f RS |
265 | } |
266 | ||
0c7bc1aa | 267 | static int |
3a8ce822 | 268 | mouse_button_depressed (int b, int *xp, int *yp) |
0c7bc1aa EZ |
269 | { |
270 | union REGS regs; | |
271 | ||
272 | if (b >= mouse_button_count) | |
273 | return 0; | |
274 | regs.x.ax = 0x0003; | |
275 | int86 (0x33, ®s, ®s); | |
276 | if ((regs.x.bx & (1 << mouse_button_translate[b])) != 0) | |
277 | { | |
278 | *xp = regs.x.cx / 8; | |
279 | *yp = regs.x.dx / 8; | |
280 | return 1; | |
281 | } | |
282 | return 0; | |
283 | } | |
284 | ||
f32d4091 | 285 | void |
3a8ce822 EZ |
286 | mouse_get_pos (FRAME_PTR *f, int insist, Lisp_Object *bar_window, |
287 | enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y, | |
288 | unsigned long *time) | |
f32d4091 KS |
289 | { |
290 | int ix, iy; | |
211c7152 EZ |
291 | Lisp_Object frame, tail; |
292 | ||
293 | /* Clear the mouse-moved flag for every frame on this display. */ | |
294 | FOR_EACH_FRAME (tail, frame) | |
295 | XFRAME (frame)->mouse_moved = 0; | |
f32d4091 | 296 | |
2d764c78 | 297 | *f = SELECTED_FRAME(); |
f32d4091 KS |
298 | *bar_window = Qnil; |
299 | mouse_get_xy (&ix, &iy); | |
f32d4091 | 300 | *time = event_timestamp (); |
211c7152 EZ |
301 | *x = make_number (mouse_last_x = ix); |
302 | *y = make_number (mouse_last_y = iy); | |
f32d4091 | 303 | } |
1b94449f | 304 | |
f32d4091 | 305 | static void |
3a8ce822 | 306 | mouse_check_moved (void) |
1b94449f | 307 | { |
aee81730 | 308 | int x, y; |
1b94449f | 309 | |
f32d4091 | 310 | mouse_get_xy (&x, &y); |
2d764c78 | 311 | SELECTED_FRAME()->mouse_moved |= (x != mouse_last_x || y != mouse_last_y); |
f32d4091 KS |
312 | mouse_last_x = x; |
313 | mouse_last_y = y; | |
314 | } | |
1b94449f | 315 | |
97dd288b EZ |
316 | /* Force the mouse driver to ``forget'' about any button clicks until |
317 | now. */ | |
318 | static void | |
319 | mouse_clear_clicks (void) | |
320 | { | |
321 | int b; | |
322 | ||
323 | for (b = 0; b < mouse_button_count; b++) | |
324 | { | |
325 | int dummy_x, dummy_y; | |
326 | ||
327 | (void) mouse_pressed (b, &dummy_x, &dummy_y); | |
328 | (void) mouse_released (b, &dummy_x, &dummy_y); | |
329 | } | |
330 | } | |
331 | ||
f32d4091 | 332 | void |
3a8ce822 | 333 | mouse_init (void) |
f32d4091 KS |
334 | { |
335 | union REGS regs; | |
3e1944a3 | 336 | struct tty_display_info *tty = CURTTY (); |
647c32eb | 337 | |
3e1944a3 EZ |
338 | if (tty->termscript) |
339 | fprintf (tty->termscript, "<M_INIT>"); | |
1b94449f | 340 | |
f32d4091 KS |
341 | regs.x.ax = 0x0021; |
342 | int86 (0x33, ®s, ®s); | |
091d0bdf | 343 | |
0c7bc1aa EZ |
344 | /* Reset the mouse last press/release info. It seems that Windows |
345 | doesn't do that automatically when function 21h is called, which | |
346 | causes Emacs to ``remember'' the click that switched focus to the | |
347 | window just before Emacs was started from that window. */ | |
97dd288b | 348 | mouse_clear_clicks (); |
0c7bc1aa | 349 | |
f32d4091 KS |
350 | regs.x.ax = 0x0007; |
351 | regs.x.cx = 0; | |
352 | regs.x.dx = 8 * (ScreenCols () - 1); | |
353 | int86 (0x33, ®s, ®s); | |
1b94449f | 354 | |
f32d4091 KS |
355 | regs.x.ax = 0x0008; |
356 | regs.x.cx = 0; | |
357 | regs.x.dx = 8 * (ScreenRows () - 1); | |
358 | int86 (0x33, ®s, ®s); | |
1b94449f | 359 | |
f32d4091 KS |
360 | mouse_moveto (0, 0); |
361 | mouse_visible = 0; | |
362 | } | |
3eb1dbb6 | 363 | \f |
f32d4091 KS |
364 | /* ------------------------- Screen control ---------------------- |
365 | * | |
366 | */ | |
aee81730 | 367 | |
f32d4091 | 368 | static int internal_terminal = 0; |
aee81730 | 369 | |
f32d4091 KS |
370 | #ifndef HAVE_X_WINDOWS |
371 | extern unsigned char ScreenAttrib; | |
372 | static int screen_face; | |
aee81730 | 373 | |
f32d4091 KS |
374 | static int screen_size_X; |
375 | static int screen_size_Y; | |
376 | static int screen_size; | |
1b94449f | 377 | |
f32d4091 KS |
378 | static int current_pos_X; |
379 | static int current_pos_Y; | |
380 | static int new_pos_X; | |
381 | static int new_pos_Y; | |
1b94449f | 382 | |
f32d4091 KS |
383 | static void *startup_screen_buffer; |
384 | static int startup_screen_size_X; | |
385 | static int startup_screen_size_Y; | |
386 | static int startup_pos_X; | |
387 | static int startup_pos_Y; | |
c9adab25 | 388 | static unsigned char startup_screen_attrib; |
1b94449f | 389 | |
06b1ea13 EZ |
390 | static clock_t startup_time; |
391 | ||
f32d4091 | 392 | static int term_setup_done; |
1b94449f | 393 | |
8ba01a32 EZ |
394 | static unsigned short outside_cursor; |
395 | ||
f32d4091 | 396 | /* Similar to the_only_frame. */ |
3e1944a3 | 397 | struct tty_display_info the_only_display_info; |
1b94449f | 398 | |
039274cf EZ |
399 | /* Support for DOS/V (allows Japanese characters to be displayed on |
400 | standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */ | |
401 | ||
402 | /* Holds the address of the text-mode screen buffer. */ | |
403 | static unsigned long screen_old_address = 0; | |
404 | /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */ | |
405 | static unsigned short screen_virtual_segment = 0; | |
406 | static unsigned short screen_virtual_offset = 0; | |
68026917 AI |
407 | /* A flag to control how to display unibyte 8-bit characters. */ |
408 | extern int unibyte_display_via_language_environment; | |
039274cf | 409 | |
6b61353c KH |
410 | extern Lisp_Object Qcursor_type; |
411 | extern Lisp_Object Qbar, Qhbar; | |
8ba01a32 | 412 | |
9ccf54e9 | 413 | /* The screen colors of the current frame, which serve as the default |
deece6f5 EZ |
414 | colors for newly-created frames. */ |
415 | static int initial_screen_colors[2]; | |
416 | ||
039274cf EZ |
417 | /* Update the screen from a part of relocated DOS/V screen buffer which |
418 | begins at OFFSET and includes COUNT characters. */ | |
419 | static void | |
420 | dosv_refresh_virtual_screen (int offset, int count) | |
421 | { | |
422 | __dpmi_regs regs; | |
423 | ||
9ab8560d | 424 | if (offset < 0 || count < 0) /* paranoia; invalid values crash DOS/V */ |
40437cf5 EZ |
425 | return; |
426 | ||
039274cf EZ |
427 | regs.h.ah = 0xff; /* update relocated screen */ |
428 | regs.x.es = screen_virtual_segment; | |
429 | regs.x.di = screen_virtual_offset + offset; | |
430 | regs.x.cx = count; | |
431 | __dpmi_int (0x10, ®s); | |
432 | } | |
039274cf | 433 | |
d1d5dc19 | 434 | static void |
3a8ce822 | 435 | dos_direct_output (int y, int x, char *buf, int len) |
1b94449f | 436 | { |
40437cf5 EZ |
437 | int t0 = 2 * (x + y * screen_size_X); |
438 | int t = t0 + (int) ScreenPrimary; | |
039274cf | 439 | int l0 = len; |
fc171623 | 440 | |
fc171623 KH |
441 | /* This is faster. */ |
442 | for (_farsetsel (_dos_ds); --len >= 0; t += 2, buf++) | |
443 | _farnspokeb (t, *buf); | |
039274cf EZ |
444 | |
445 | if (screen_virtual_segment) | |
446 | dosv_refresh_virtual_screen (t0, l0); | |
f32d4091 KS |
447 | } |
448 | #endif | |
449 | ||
450 | #ifndef HAVE_X_WINDOWS | |
451 | ||
b36701cc RS |
452 | static int blink_bit = -1; /* the state of the blink bit at startup */ |
453 | ||
76ac1508 RS |
454 | /* Enable bright background colors. */ |
455 | static void | |
456 | bright_bg (void) | |
457 | { | |
458 | union REGS regs; | |
459 | ||
b36701cc RS |
460 | /* Remember the original state of the blink/bright-background bit. |
461 | It is stored at 0040:0065h in the BIOS data area. */ | |
462 | if (blink_bit == -1) | |
463 | blink_bit = (_farpeekb (_dos_ds, 0x465) & 0x20) == 0x20; | |
464 | ||
76ac1508 RS |
465 | regs.h.bl = 0; |
466 | regs.x.ax = 0x1003; | |
467 | int86 (0x10, ®s, ®s); | |
468 | } | |
469 | ||
b36701cc RS |
470 | /* Disable bright background colors (and enable blinking) if we found |
471 | the video system in that state at startup. */ | |
472 | static void | |
473 | maybe_enable_blinking (void) | |
474 | { | |
475 | if (blink_bit == 1) | |
476 | { | |
477 | union REGS regs; | |
478 | ||
479 | regs.h.bl = 1; | |
480 | regs.x.ax = 0x1003; | |
481 | int86 (0x10, ®s, ®s); | |
482 | } | |
483 | } | |
484 | ||
8ba01a32 EZ |
485 | /* Return non-zero if the system has a VGA adapter. */ |
486 | static int | |
487 | vga_installed (void) | |
488 | { | |
489 | union REGS regs; | |
490 | ||
491 | regs.x.ax = 0x1a00; | |
492 | int86 (0x10, ®s, ®s); | |
493 | if (regs.h.al == 0x1a && regs.h.bl > 5 && regs.h.bl < 13) | |
494 | return 1; | |
495 | return 0; | |
496 | } | |
497 | ||
4a96d4d2 KH |
498 | /* Set the screen dimensions so that it can show no less than |
499 | ROWS x COLS frame. */ | |
48ffe371 | 500 | |
4a96d4d2 | 501 | void |
3a8ce822 | 502 | dos_set_window_size (int *rows, int *cols) |
4a96d4d2 KH |
503 | { |
504 | char video_name[30]; | |
4a96d4d2 | 505 | union REGS regs; |
56e19ec4 EZ |
506 | Lisp_Object video_mode; |
507 | int video_mode_value, have_vga = 0; | |
4a96d4d2 KH |
508 | int current_rows = ScreenRows (), current_cols = ScreenCols (); |
509 | ||
510 | if (*rows == current_rows && *cols == current_cols) | |
511 | return; | |
512 | ||
4a96d4d2 | 513 | mouse_off (); |
8ba01a32 | 514 | have_vga = vga_installed (); |
4a96d4d2 | 515 | |
48ffe371 | 516 | /* If the user specified a special video mode for these dimensions, |
4a96d4d2 KH |
517 | use that mode. */ |
518 | sprintf (video_name, "screen-dimensions-%dx%d", *rows, *cols); | |
d16bdfc3 | 519 | video_mode = Fsymbol_value (Fintern_soft (build_string (video_name), Qnil)); |
4a96d4d2 KH |
520 | |
521 | if (INTEGERP (video_mode) | |
522 | && (video_mode_value = XINT (video_mode)) > 0) | |
523 | { | |
524 | regs.x.ax = video_mode_value; | |
525 | int86 (0x10, ®s, ®s); | |
48ffe371 RS |
526 | |
527 | if (have_mouse) | |
528 | { | |
529 | /* Must hardware-reset the mouse, or else it won't update | |
530 | its notion of screen dimensions for some non-standard | |
531 | video modes. This is *painfully* slow... */ | |
532 | regs.x.ax = 0; | |
533 | int86 (0x33, ®s, ®s); | |
534 | } | |
4a96d4d2 KH |
535 | } |
536 | ||
537 | /* Find one of the dimensions supported by standard EGA/VGA | |
538 | which gives us at least the required dimensions. */ | |
4a96d4d2 KH |
539 | else |
540 | { | |
541 | static struct { | |
56e19ec4 | 542 | int rows, need_vga; |
4a96d4d2 KH |
543 | } std_dimension[] = { |
544 | {25, 0}, | |
545 | {28, 1}, | |
546 | {35, 0}, | |
547 | {40, 1}, | |
548 | {43, 0}, | |
549 | {50, 1} | |
550 | }; | |
551 | int i = 0; | |
552 | ||
553 | while (i < sizeof (std_dimension) / sizeof (std_dimension[0])) | |
554 | { | |
555 | if (std_dimension[i].need_vga <= have_vga | |
556 | && std_dimension[i].rows >= *rows) | |
557 | { | |
558 | if (std_dimension[i].rows != current_rows | |
559 | || *cols != current_cols) | |
48ffe371 | 560 | _set_screen_lines (std_dimension[i].rows); |
4a96d4d2 KH |
561 | break; |
562 | } | |
48ffe371 | 563 | i++; |
4a96d4d2 KH |
564 | } |
565 | } | |
566 | ||
4a96d4d2 KH |
567 | |
568 | if (have_mouse) | |
569 | { | |
4a96d4d2 KH |
570 | mouse_init (); |
571 | mouse_on (); | |
572 | } | |
573 | ||
574 | /* Tell the caller what dimensions have been REALLY set. */ | |
575 | *rows = ScreenRows (); | |
576 | *cols = ScreenCols (); | |
76ac1508 | 577 | |
bed43f1d EZ |
578 | /* Update Emacs' notion of screen dimensions. */ |
579 | screen_size_X = *cols; | |
580 | screen_size_Y = *rows; | |
581 | screen_size = *cols * *rows; | |
582 | ||
41ad069b EZ |
583 | /* If the dimensions changed, the mouse highlight info is invalid. */ |
584 | if (current_rows != *rows || current_cols != *cols) | |
585 | { | |
586 | struct frame *f = SELECTED_FRAME(); | |
3e1944a3 | 587 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
41ad069b EZ |
588 | Lisp_Object window = dpyinfo->mouse_face_window; |
589 | ||
590 | if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f) | |
591 | { | |
592 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
593 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
594 | dpyinfo->mouse_face_window = Qnil; | |
595 | } | |
596 | } | |
41ad069b | 597 | |
76ac1508 RS |
598 | /* Enable bright background colors. */ |
599 | bright_bg (); | |
039274cf EZ |
600 | |
601 | /* FIXME: I'm not sure the above will run at all on DOS/V. But let's | |
602 | be defensive anyway. */ | |
603 | if (screen_virtual_segment) | |
604 | dosv_refresh_virtual_screen (0, *cols * *rows); | |
4a96d4d2 KH |
605 | } |
606 | ||
48ffe371 RS |
607 | /* If we write a character in the position where the mouse is, |
608 | the mouse cursor may need to be refreshed. */ | |
09e2ac30 RS |
609 | |
610 | static void | |
3a8ce822 | 611 | mouse_off_maybe (void) |
09e2ac30 | 612 | { |
f32d4091 | 613 | int x, y; |
56e19ec4 | 614 | |
f32d4091 KS |
615 | if (!mouse_visible) |
616 | return; | |
56e19ec4 | 617 | |
f32d4091 KS |
618 | mouse_get_xy (&x, &y); |
619 | if (y != new_pos_Y || x < new_pos_X) | |
620 | return; | |
56e19ec4 | 621 | |
f32d4091 KS |
622 | mouse_off (); |
623 | } | |
624 | ||
8ba01a32 EZ |
625 | #define DEFAULT_CURSOR_START (-1) |
626 | #define DEFAULT_CURSOR_WIDTH (-1) | |
627 | #define BOX_CURSOR_WIDTH (-32) | |
628 | ||
629 | /* Set cursor to begin at scan line START_LINE in the character cell | |
630 | and extend for WIDTH scan lines. Scan lines are counted from top | |
631 | of the character cell, starting from zero. */ | |
632 | static void | |
633 | msdos_set_cursor_shape (struct frame *f, int start_line, int width) | |
634 | { | |
8ba01a32 EZ |
635 | unsigned desired_cursor; |
636 | __dpmi_regs regs; | |
637 | int max_line, top_line, bot_line; | |
3e1944a3 | 638 | struct tty_display_info *tty = FRAME_TTY (f); |
8ba01a32 EZ |
639 | |
640 | /* Avoid the costly BIOS call if F isn't the currently selected | |
641 | frame. Allow for NULL as unconditionally meaning the selected | |
642 | frame. */ | |
643 | if (f && f != SELECTED_FRAME()) | |
644 | return; | |
645 | ||
3e1944a3 EZ |
646 | if (tty->termscript) |
647 | fprintf (tty->termscript, "\nCURSOR SHAPE=(%d,%d)", start_line, width); | |
b106731c | 648 | |
8ba01a32 EZ |
649 | /* The character cell size in scan lines is stored at 40:85 in the |
650 | BIOS data area. */ | |
651 | max_line = _farpeekw (_dos_ds, 0x485) - 1; | |
652 | switch (max_line) | |
653 | { | |
654 | default: /* this relies on CGA cursor emulation being ON! */ | |
655 | case 7: | |
656 | bot_line = 7; | |
657 | break; | |
658 | case 9: | |
659 | bot_line = 9; | |
660 | break; | |
661 | case 13: | |
662 | bot_line = 12; | |
663 | break; | |
664 | case 15: | |
665 | bot_line = 14; | |
666 | break; | |
667 | } | |
668 | ||
669 | if (width < 0) | |
670 | { | |
671 | if (width == BOX_CURSOR_WIDTH) | |
672 | { | |
673 | top_line = 0; | |
674 | bot_line = max_line; | |
675 | } | |
676 | else if (start_line != DEFAULT_CURSOR_START) | |
677 | { | |
678 | top_line = start_line; | |
679 | bot_line = top_line - width - 1; | |
680 | } | |
681 | else if (width != DEFAULT_CURSOR_WIDTH) | |
682 | { | |
683 | top_line = 0; | |
684 | bot_line = -1 - width; | |
685 | } | |
686 | else | |
687 | top_line = bot_line + 1; | |
688 | } | |
689 | else if (width == 0) | |
690 | { | |
691 | /* [31, 0] seems to DTRT for all screen sizes. */ | |
692 | top_line = 31; | |
693 | bot_line = 0; | |
694 | } | |
695 | else /* WIDTH is positive */ | |
696 | { | |
697 | if (start_line != DEFAULT_CURSOR_START) | |
698 | bot_line = start_line; | |
699 | top_line = bot_line - (width - 1); | |
700 | } | |
701 | ||
702 | /* If the current cursor shape is already what they want, we are | |
703 | history here. */ | |
704 | desired_cursor = ((top_line & 0x1f) << 8) | (bot_line & 0x1f); | |
705 | if (desired_cursor == _farpeekw (_dos_ds, 0x460)) | |
706 | return; | |
707 | ||
708 | regs.h.ah = 1; | |
709 | regs.x.cx = desired_cursor; | |
710 | __dpmi_int (0x10, ®s); | |
8ba01a32 EZ |
711 | } |
712 | ||
713 | static void | |
714 | IT_set_cursor_type (struct frame *f, Lisp_Object cursor_type) | |
715 | { | |
a0738471 | 716 | if (EQ (cursor_type, Qbar) || EQ (cursor_type, Qhbar)) |
8ba01a32 EZ |
717 | { |
718 | /* Just BAR means the normal EGA/VGA cursor. */ | |
719 | msdos_set_cursor_shape (f, DEFAULT_CURSOR_START, DEFAULT_CURSOR_WIDTH); | |
720 | } | |
a0738471 EZ |
721 | else if (CONSP (cursor_type) |
722 | && (EQ (XCAR (cursor_type), Qbar) | |
723 | || EQ (XCAR (cursor_type), Qhbar))) | |
8ba01a32 EZ |
724 | { |
725 | Lisp_Object bar_parms = XCDR (cursor_type); | |
726 | int width; | |
727 | ||
728 | if (INTEGERP (bar_parms)) | |
729 | { | |
730 | /* Feature: negative WIDTH means cursor at the top | |
731 | of the character cell, zero means invisible cursor. */ | |
732 | width = XINT (bar_parms); | |
733 | msdos_set_cursor_shape (f, width >= 0 ? DEFAULT_CURSOR_START : 0, | |
734 | width); | |
735 | } | |
736 | else if (CONSP (bar_parms) | |
737 | && INTEGERP (XCAR (bar_parms)) | |
738 | && INTEGERP (XCDR (bar_parms))) | |
739 | { | |
740 | int start_line = XINT (XCDR (bar_parms)); | |
741 | ||
742 | width = XINT (XCAR (bar_parms)); | |
743 | msdos_set_cursor_shape (f, start_line, width); | |
744 | } | |
745 | } | |
746 | else | |
b106731c EZ |
747 | { |
748 | /* Treat anything unknown as "box cursor". This includes nil, so | |
749 | that a frame which doesn't specify a cursor type gets a box, | |
750 | which is the default in Emacs. */ | |
751 | msdos_set_cursor_shape (f, 0, BOX_CURSOR_WIDTH); | |
752 | } | |
8ba01a32 EZ |
753 | } |
754 | ||
71f65669 | 755 | static void |
3e1944a3 | 756 | IT_ring_bell (struct frame *f) |
f32d4091 KS |
757 | { |
758 | if (visible_bell) | |
aee81730 | 759 | { |
f32d4091 KS |
760 | mouse_off (); |
761 | ScreenVisualBell (); | |
aee81730 | 762 | } |
f32d4091 | 763 | else |
3635be47 RS |
764 | { |
765 | union REGS inregs, outregs; | |
766 | inregs.h.ah = 2; | |
767 | inregs.h.dl = 7; | |
768 | intdos (&inregs, &outregs); | |
769 | } | |
09e2ac30 RS |
770 | } |
771 | ||
c77f6f1b EZ |
772 | /* Given a face id FACE, extract the face parameters to be used for |
773 | display until the face changes. The face parameters (actually, its | |
774 | color) are used to construct the video attribute byte for each | |
775 | glyph during the construction of the buffer that is then blitted to | |
776 | the video RAM. */ | |
f32d4091 KS |
777 | static void |
778 | IT_set_face (int face) | |
779 | { | |
2d764c78 | 780 | struct frame *sf = SELECTED_FRAME(); |
546701f5 EZ |
781 | struct face *fp = FACE_FROM_ID (sf, face); |
782 | struct face *dfp = FACE_FROM_ID (sf, DEFAULT_FACE_ID); | |
783 | unsigned long fg, bg, dflt_fg, dflt_bg; | |
3e1944a3 | 784 | struct tty_display_info *tty = FRAME_TTY (sf); |
f32d4091 | 785 | |
c77f6f1b | 786 | if (!fp) |
e30aee93 | 787 | { |
546701f5 | 788 | fp = dfp; |
e30aee93 EZ |
789 | /* The default face for the frame should always be realized and |
790 | cached. */ | |
791 | if (!fp) | |
792 | abort (); | |
793 | } | |
f32d4091 | 794 | screen_face = face; |
c77f6f1b EZ |
795 | fg = fp->foreground; |
796 | bg = fp->background; | |
546701f5 EZ |
797 | dflt_fg = dfp->foreground; |
798 | dflt_bg = dfp->background; | |
c77f6f1b | 799 | |
abcce93a MB |
800 | /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* colors |
801 | mean use the colors of the default face. Note that we assume all | |
802 | 16 colors to be available for the background, since Emacs switches | |
803 | on this mode (and loses the blinking attribute) at startup. */ | |
f9d2fdc4 | 804 | if (fg == FACE_TTY_DEFAULT_COLOR || fg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 | 805 | fg = FRAME_FOREGROUND_PIXEL (sf); |
f9d2fdc4 | 806 | else if (fg == FACE_TTY_DEFAULT_BG_COLOR) |
3b620731 EZ |
807 | fg = FRAME_BACKGROUND_PIXEL (sf); |
808 | if (bg == FACE_TTY_DEFAULT_COLOR || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
809 | bg = FRAME_BACKGROUND_PIXEL (sf); | |
f9d2fdc4 | 810 | else if (bg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 EZ |
811 | bg = FRAME_FOREGROUND_PIXEL (sf); |
812 | ||
813 | /* Make sure highlighted lines really stand out, come what may. */ | |
abcce93a | 814 | if (fp->tty_reverse_p && (fg == dflt_fg && bg == dflt_bg)) |
3b620731 EZ |
815 | { |
816 | unsigned long tem = fg; | |
817 | ||
818 | fg = bg; | |
819 | bg = tem; | |
820 | } | |
76648534 EZ |
821 | /* If the user requested inverse video, obey. */ |
822 | if (inverse_video) | |
823 | { | |
824 | unsigned long tem2 = fg; | |
825 | ||
826 | fg = bg; | |
827 | bg = tem2; | |
828 | } | |
3e1944a3 EZ |
829 | if (tty->termscript) |
830 | fprintf (tty->termscript, "<FACE %d: %d/%d[FG:%d/BG:%d]>", face, | |
abcce93a | 831 | fp->foreground, fp->background, fg, bg); |
c77f6f1b EZ |
832 | if (fg >= 0 && fg < 16) |
833 | { | |
834 | ScreenAttrib &= 0xf0; | |
835 | ScreenAttrib |= fg; | |
836 | } | |
837 | if (bg >= 0 && bg < 16) | |
838 | { | |
839 | ScreenAttrib &= 0x0f; | |
840 | ScreenAttrib |= ((bg & 0x0f) << 4); | |
841 | } | |
f32d4091 KS |
842 | } |
843 | ||
aff01dd9 EZ |
844 | /* According to RBIL (INTERRUP.A, V-1000), 160 is the maximum possible |
845 | width of a DOS display in any known text mode. We multiply by 2 to | |
846 | accomodate the screen attribute byte. */ | |
847 | #define MAX_SCREEN_BUF 160*2 | |
848 | ||
aa9ce936 | 849 | Lisp_Object Vdos_unsupported_char_glyph; |
3e1944a3 EZ |
850 | extern unsigned char *encode_terminal_code (struct glyph *, int, |
851 | struct coding_system *); | |
71f65669 | 852 | static void |
3e1944a3 | 853 | IT_write_glyphs (struct frame *f, struct glyph *str, int str_len) |
f32d4091 | 854 | { |
aff01dd9 | 855 | unsigned char screen_buf[MAX_SCREEN_BUF], *screen_bp, *bp; |
039274cf | 856 | int offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 | 857 | register int sl = str_len; |
3e1944a3 | 858 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 | 859 | struct frame *sf; |
3e1944a3 | 860 | unsigned char *conversion_buffer; |
87485d6f | 861 | |
52d38ab2 EZ |
862 | /* Do we need to consider conversion of unibyte characters to |
863 | multibyte? */ | |
864 | int convert_unibyte_characters | |
e16bf494 AI |
865 | = (NILP (current_buffer->enable_multibyte_characters) |
866 | && unibyte_display_via_language_environment); | |
52d38ab2 | 867 | |
3e1944a3 EZ |
868 | /* If terminal_coding does any conversion, use it, otherwise use |
869 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
870 | because it always returns 1 if terminal_coding.src_multibyte is 1. */ | |
871 | struct coding_system *coding = FRAME_TERMINAL_CODING (f); | |
872 | ||
873 | if (!(coding->common_flags & CODING_REQUIRE_ENCODING_MASK)) | |
874 | coding = &safe_terminal_coding; | |
648648a9 | 875 | |
3b620731 | 876 | if (str_len <= 0) return; |
56e19ec4 | 877 | |
2d764c78 | 878 | sf = SELECTED_FRAME(); |
e30aee93 EZ |
879 | |
880 | /* Since faces get cached and uncached behind our back, we can't | |
881 | rely on their indices in the cache being consistent across | |
882 | invocations. So always reset the screen face to the default | |
883 | face of the frame, before writing glyphs, and let the glyphs | |
884 | set the right face if it's different from the default. */ | |
885 | IT_set_face (DEFAULT_FACE_ID); | |
56e19ec4 | 886 | |
aa9ce936 EZ |
887 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
888 | the tail. */ | |
3e1944a3 | 889 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
aff01dd9 | 890 | screen_bp = &screen_buf[0]; |
3e1944a3 | 891 | while (sl > 0) |
aa9ce936 | 892 | { |
3e1944a3 | 893 | int cf; |
aff01dd9 | 894 | int n; |
aa9ce936 | 895 | |
aff01dd9 EZ |
896 | /* If the face of this glyph is different from the current |
897 | screen face, update the screen attribute byte. */ | |
898 | cf = str->face_id; | |
899 | if (cf != screen_face) | |
900 | IT_set_face (cf); /* handles invalid faces gracefully */ | |
901 | ||
902 | /* Identify a run of glyphs with the same face. */ | |
903 | for (n = 1; n < sl; ++n) | |
904 | if (str[n].face_id != cf) | |
905 | break; | |
906 | ||
907 | if (n >= sl) | |
908 | /* This is the last glyph. */ | |
909 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
910 | ||
911 | conversion_buffer = encode_terminal_code (str, n, coding); | |
912 | if (coding->produced > 0) | |
aa9ce936 | 913 | { |
aff01dd9 EZ |
914 | /* Copy the encoded bytes to the screen buffer. */ |
915 | for (bp = conversion_buffer; coding->produced--; bp++) | |
aa9ce936 | 916 | { |
aff01dd9 EZ |
917 | /* Paranoia: discard bytes that would overrun the end of |
918 | the screen buffer. */ | |
919 | if (screen_bp - screen_buf <= MAX_SCREEN_BUF - 2) | |
aa9ce936 | 920 | { |
aff01dd9 EZ |
921 | *screen_bp++ = (unsigned char)*bp; |
922 | *screen_bp++ = ScreenAttrib; | |
aa9ce936 | 923 | } |
aff01dd9 EZ |
924 | if (tty->termscript) |
925 | fputc (*bp, tty->termscript); | |
aa9ce936 EZ |
926 | } |
927 | } | |
aff01dd9 EZ |
928 | /* Update STR and its remaining length. */ |
929 | str += n; | |
930 | sl -= n; | |
aee81730 RS |
931 | } |
932 | ||
aff01dd9 | 933 | /* Dump whatever we have in the screen buffer. */ |
f32d4091 | 934 | mouse_off_maybe (); |
aa9ce936 | 935 | dosmemput (screen_buf, screen_bp - screen_buf, (int)ScreenPrimary + offset); |
039274cf | 936 | if (screen_virtual_segment) |
aa9ce936 EZ |
937 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); |
938 | new_pos_X += (screen_bp - screen_buf) / 2; | |
f32d4091 | 939 | } |
aee81730 | 940 | |
41ad069b EZ |
941 | /************************************************************************ |
942 | Mouse Highlight (and friends..) | |
943 | ************************************************************************/ | |
944 | ||
ee8ceff8 | 945 | /* Last window where we saw the mouse. Used by mouse-autoselect-window. */ |
9005a471 EZ |
946 | static Lisp_Object last_mouse_window; |
947 | ||
41ad069b EZ |
948 | static int mouse_preempted = 0; /* non-zero when XMenu gobbles mouse events */ |
949 | ||
950 | /* Set the mouse pointer shape according to whether it is in the | |
951 | area where the mouse highlight is in effect. */ | |
952 | static void | |
953 | IT_set_mouse_pointer (int mode) | |
954 | { | |
955 | /* A no-op for now. DOS text-mode mouse pointer doesn't offer too | |
956 | many possibilities to change its shape, and the available | |
957 | functionality pretty much sucks (e.g., almost every reasonable | |
958 | shape will conceal the character it is on). Since the color of | |
959 | the pointer changes in the highlighted area, it is not clear to | |
960 | me whether anything else is required, anyway. */ | |
961 | } | |
962 | ||
963 | /* Display the active region described by mouse_face_* | |
964 | in its mouse-face if HL > 0, in its normal face if HL = 0. */ | |
965 | static void | |
3e1944a3 | 966 | show_mouse_face (struct tty_display_info *dpyinfo, int hl) |
41ad069b EZ |
967 | { |
968 | struct window *w = XWINDOW (dpyinfo->mouse_face_window); | |
969 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
970 | int i; | |
971 | struct face *fp; | |
3e1944a3 | 972 | struct tty_display_info *tty = FRAME_TTY (f); |
41ad069b | 973 | |
56e19ec4 | 974 | |
41ad069b EZ |
975 | /* If window is in the process of being destroyed, don't bother |
976 | doing anything. */ | |
977 | if (w->current_matrix == NULL) | |
978 | goto set_cursor_shape; | |
979 | ||
980 | /* Recognize when we are called to operate on rows that don't exist | |
981 | anymore. This can happen when a window is split. */ | |
982 | if (dpyinfo->mouse_face_end_row >= w->current_matrix->nrows) | |
983 | goto set_cursor_shape; | |
984 | ||
985 | /* There's no sense to do anything if the mouse face isn't realized. */ | |
986 | if (hl > 0) | |
987 | { | |
abf10ed7 KS |
988 | if (dpyinfo->mouse_face_hidden) |
989 | goto set_cursor_shape; | |
990 | ||
41ad069b EZ |
991 | fp = FACE_FROM_ID (SELECTED_FRAME(), dpyinfo->mouse_face_face_id); |
992 | if (!fp) | |
993 | goto set_cursor_shape; | |
994 | } | |
995 | ||
996 | /* Note that mouse_face_beg_row etc. are window relative. */ | |
997 | for (i = dpyinfo->mouse_face_beg_row; | |
998 | i <= dpyinfo->mouse_face_end_row; | |
999 | i++) | |
1000 | { | |
1001 | int start_hpos, end_hpos; | |
1002 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, i); | |
1003 | ||
1004 | /* Don't do anything if row doesn't have valid contents. */ | |
1005 | if (!row->enabled_p) | |
1006 | continue; | |
1007 | ||
1008 | /* For all but the first row, the highlight starts at column 0. */ | |
1009 | if (i == dpyinfo->mouse_face_beg_row) | |
1010 | start_hpos = dpyinfo->mouse_face_beg_col; | |
1011 | else | |
1012 | start_hpos = 0; | |
1013 | ||
1014 | if (i == dpyinfo->mouse_face_end_row) | |
1015 | end_hpos = dpyinfo->mouse_face_end_col; | |
1016 | else | |
1017 | end_hpos = row->used[TEXT_AREA]; | |
1018 | ||
1019 | if (end_hpos <= start_hpos) | |
1020 | continue; | |
48c14970 EZ |
1021 | /* Record that some glyphs of this row are displayed in |
1022 | mouse-face. */ | |
1023 | row->mouse_face_p = hl > 0; | |
41ad069b EZ |
1024 | if (hl > 0) |
1025 | { | |
c655f6fd KS |
1026 | int vpos = row->y + WINDOW_TOP_EDGE_Y (w); |
1027 | int kstart = start_hpos + WINDOW_LEFT_EDGE_X (w); | |
41ad069b EZ |
1028 | int nglyphs = end_hpos - start_hpos; |
1029 | int offset = ScreenPrimary + 2*(vpos*screen_size_X + kstart) + 1; | |
1030 | int start_offset = offset; | |
1031 | ||
3e1944a3 EZ |
1032 | if (tty->termscript) |
1033 | fprintf (tty->termscript, "\n<MH+ %d-%d:%d>", | |
41ad069b EZ |
1034 | kstart, kstart + nglyphs - 1, vpos); |
1035 | ||
1036 | mouse_off (); | |
1037 | IT_set_face (dpyinfo->mouse_face_face_id); | |
1038 | /* Since we are going to change only the _colors_ of the | |
1039 | displayed text, there's no need to go through all the | |
1040 | pain of generating and encoding the text from the glyphs. | |
1041 | Instead, we simply poke the attribute byte of each | |
1042 | affected position in video memory with the colors | |
1043 | computed by IT_set_face! */ | |
1044 | _farsetsel (_dos_ds); | |
1045 | while (nglyphs--) | |
1046 | { | |
1047 | _farnspokeb (offset, ScreenAttrib); | |
1048 | offset += 2; | |
1049 | } | |
1050 | if (screen_virtual_segment) | |
1051 | dosv_refresh_virtual_screen (start_offset, end_hpos - start_hpos); | |
1052 | mouse_on (); | |
1053 | } | |
1054 | else | |
1055 | { | |
1056 | /* We are removing a previously-drawn mouse highlight. The | |
1057 | safest way to do so is to redraw the glyphs anew, since | |
1058 | all kinds of faces and display tables could have changed | |
1059 | behind our back. */ | |
1060 | int nglyphs = end_hpos - start_hpos; | |
1061 | int save_x = new_pos_X, save_y = new_pos_Y; | |
1062 | ||
1063 | if (end_hpos >= row->used[TEXT_AREA]) | |
1064 | nglyphs = row->used[TEXT_AREA] - start_hpos; | |
1065 | ||
1066 | /* IT_write_glyphs writes at cursor position, so we need to | |
1067 | temporarily move cursor coordinates to the beginning of | |
1068 | the highlight region. */ | |
c655f6fd KS |
1069 | new_pos_X = start_hpos + WINDOW_LEFT_EDGE_X (w); |
1070 | new_pos_Y = row->y + WINDOW_TOP_EDGE_Y (w); | |
41ad069b | 1071 | |
3e1944a3 EZ |
1072 | if (tty->termscript) |
1073 | fprintf (tty->termscript, "<MH- %d-%d:%d>", | |
41ad069b | 1074 | new_pos_X, new_pos_X + nglyphs - 1, new_pos_Y); |
3e1944a3 EZ |
1075 | IT_write_glyphs (f, row->glyphs[TEXT_AREA] + start_hpos, nglyphs); |
1076 | if (tty->termscript) | |
1077 | fputs ("\n", tty->termscript); | |
41ad069b EZ |
1078 | new_pos_X = save_x; |
1079 | new_pos_Y = save_y; | |
1080 | } | |
1081 | } | |
1082 | ||
1083 | set_cursor_shape: | |
41ad069b EZ |
1084 | /* Change the mouse pointer shape. */ |
1085 | IT_set_mouse_pointer (hl); | |
1086 | } | |
1087 | ||
1088 | /* Clear out the mouse-highlighted active region. | |
1089 | Redraw it un-highlighted first. */ | |
1090 | static void | |
3e1944a3 | 1091 | clear_mouse_face (struct tty_display_info *dpyinfo) |
41ad069b | 1092 | { |
6b61353c | 1093 | if (!dpyinfo->mouse_face_hidden && ! NILP (dpyinfo->mouse_face_window)) |
41ad069b EZ |
1094 | show_mouse_face (dpyinfo, 0); |
1095 | ||
1096 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
1097 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
1098 | dpyinfo->mouse_face_window = Qnil; | |
1099 | } | |
1100 | ||
1101 | /* Find the glyph matrix position of buffer position POS in window W. | |
1102 | *HPOS and *VPOS are set to the positions found. W's current glyphs | |
1103 | must be up to date. If POS is above window start return (0, 0). | |
1104 | If POS is after end of W, return end of last line in W. */ | |
1105 | static int | |
1106 | fast_find_position (struct window *w, int pos, int *hpos, int *vpos) | |
1107 | { | |
56e19ec4 | 1108 | int i, lastcol, line_start_position, maybe_next_line_p = 0; |
41ad069b | 1109 | int yb = window_text_bottom_y (w); |
56e19ec4 | 1110 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, 0), *best_row = row; |
41ad069b EZ |
1111 | |
1112 | while (row->y < yb) | |
1113 | { | |
1114 | if (row->used[TEXT_AREA]) | |
1115 | line_start_position = row->glyphs[TEXT_AREA]->charpos; | |
1116 | else | |
1117 | line_start_position = 0; | |
1118 | ||
1119 | if (line_start_position > pos) | |
1120 | break; | |
1121 | /* If the position sought is the end of the buffer, | |
1122 | don't include the blank lines at the bottom of the window. */ | |
1123 | else if (line_start_position == pos | |
1124 | && pos == BUF_ZV (XBUFFER (w->buffer))) | |
1125 | { | |
1126 | maybe_next_line_p = 1; | |
1127 | break; | |
1128 | } | |
1129 | else if (line_start_position > 0) | |
1130 | best_row = row; | |
440ffd67 EZ |
1131 | |
1132 | /* Don't overstep the last matrix row, lest we get into the | |
1133 | never-never land... */ | |
1134 | if (row->y + 1 >= yb) | |
1135 | break; | |
56e19ec4 | 1136 | |
41ad069b EZ |
1137 | ++row; |
1138 | } | |
56e19ec4 | 1139 | |
41ad069b EZ |
1140 | /* Find the right column within BEST_ROW. */ |
1141 | lastcol = 0; | |
1142 | row = best_row; | |
1143 | for (i = 0; i < row->used[TEXT_AREA]; i++) | |
1144 | { | |
1145 | struct glyph *glyph = row->glyphs[TEXT_AREA] + i; | |
1146 | int charpos; | |
1147 | ||
1148 | charpos = glyph->charpos; | |
1149 | if (charpos == pos) | |
1150 | { | |
1151 | *hpos = i; | |
1152 | *vpos = row->y; | |
1153 | return 1; | |
1154 | } | |
1155 | else if (charpos > pos) | |
1156 | break; | |
1157 | else if (charpos > 0) | |
1158 | lastcol = i; | |
1159 | } | |
1160 | ||
1161 | /* If we're looking for the end of the buffer, | |
1162 | and we didn't find it in the line we scanned, | |
1163 | use the start of the following line. */ | |
1164 | if (maybe_next_line_p) | |
1165 | { | |
1166 | ++row; | |
1167 | lastcol = 0; | |
1168 | } | |
1169 | ||
1170 | *vpos = row->y; | |
1171 | *hpos = lastcol + 1; | |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | /* Take proper action when mouse has moved to the mode or top line of | |
1176 | window W, x-position X. MODE_LINE_P non-zero means mouse is on the | |
1177 | mode line. X is relative to the start of the text display area of | |
377df9e2 | 1178 | W, so the width of fringes and scroll bars must be subtracted |
41ad069b EZ |
1179 | to get a position relative to the start of the mode line. */ |
1180 | static void | |
1181 | IT_note_mode_line_highlight (struct window *w, int x, int mode_line_p) | |
1182 | { | |
1183 | struct frame *f = XFRAME (w->frame); | |
3e1944a3 | 1184 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
41ad069b EZ |
1185 | struct glyph_row *row; |
1186 | ||
1187 | if (mode_line_p) | |
1188 | row = MATRIX_MODE_LINE_ROW (w->current_matrix); | |
1189 | else | |
1190 | row = MATRIX_HEADER_LINE_ROW (w->current_matrix); | |
56e19ec4 | 1191 | |
41ad069b EZ |
1192 | if (row->enabled_p) |
1193 | { | |
1194 | extern Lisp_Object Qhelp_echo; | |
1195 | struct glyph *glyph, *end; | |
1196 | Lisp_Object help, map; | |
56e19ec4 | 1197 | |
41ad069b | 1198 | /* Find the glyph under X. */ |
c655f6fd KS |
1199 | glyph = (row->glyphs[TEXT_AREA] |
1200 | + x | |
6b61353c | 1201 | /* in case someone implements scroll bars some day... */ |
c655f6fd | 1202 | - WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH (w)); |
41ad069b EZ |
1203 | end = glyph + row->used[TEXT_AREA]; |
1204 | if (glyph < end | |
1205 | && STRINGP (glyph->object) | |
d5db4077 | 1206 | && STRING_INTERVALS (glyph->object) |
41ad069b | 1207 | && glyph->charpos >= 0 |
d5db4077 | 1208 | && glyph->charpos < SCHARS (glyph->object)) |
41ad069b EZ |
1209 | { |
1210 | /* If we're on a string with `help-echo' text property, | |
1211 | arrange for the help to be displayed. This is done by | |
1212 | setting the global variable help_echo to the help string. */ | |
1213 | help = Fget_text_property (make_number (glyph->charpos), | |
1214 | Qhelp_echo, glyph->object); | |
b7e80413 | 1215 | if (!NILP (help)) |
48c14970 | 1216 | { |
02d4b97d | 1217 | help_echo_string = help; |
48c14970 EZ |
1218 | XSETWINDOW (help_echo_window, w); |
1219 | help_echo_object = glyph->object; | |
1220 | help_echo_pos = glyph->charpos; | |
1221 | } | |
41ad069b EZ |
1222 | } |
1223 | } | |
1224 | } | |
1225 | ||
1226 | /* Take proper action when the mouse has moved to position X, Y on | |
1227 | frame F as regards highlighting characters that have mouse-face | |
1228 | properties. Also de-highlighting chars where the mouse was before. | |
1229 | X and Y can be negative or out of range. */ | |
1230 | static void | |
1231 | IT_note_mouse_highlight (struct frame *f, int x, int y) | |
1232 | { | |
3e1944a3 | 1233 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
02d4b97d | 1234 | enum window_part part = ON_NOTHING; |
41ad069b EZ |
1235 | Lisp_Object window; |
1236 | struct window *w; | |
1237 | ||
1238 | /* When a menu is active, don't highlight because this looks odd. */ | |
1239 | if (mouse_preempted) | |
1240 | return; | |
1241 | ||
abf10ed7 | 1242 | if (NILP (Vmouse_highlight) |
515d0d0e | 1243 | || !f->glyphs_initialized_p) |
41ad069b EZ |
1244 | return; |
1245 | ||
1246 | dpyinfo->mouse_face_mouse_x = x; | |
1247 | dpyinfo->mouse_face_mouse_y = y; | |
1248 | dpyinfo->mouse_face_mouse_frame = f; | |
1249 | ||
1250 | if (dpyinfo->mouse_face_defer) | |
1251 | return; | |
1252 | ||
1253 | if (gc_in_progress) | |
1254 | { | |
1255 | dpyinfo->mouse_face_deferred_gc = 1; | |
1256 | return; | |
1257 | } | |
1258 | ||
1259 | /* Which window is that in? */ | |
c655f6fd | 1260 | window = window_from_coordinates (f, x, y, &part, &x, &y, 0); |
41ad069b EZ |
1261 | |
1262 | /* If we were displaying active text in another window, clear that. */ | |
1263 | if (! EQ (window, dpyinfo->mouse_face_window)) | |
1264 | clear_mouse_face (dpyinfo); | |
1265 | ||
1266 | /* Not on a window -> return. */ | |
1267 | if (!WINDOWP (window)) | |
1268 | return; | |
1269 | ||
1270 | /* Convert to window-relative coordinates. */ | |
1271 | w = XWINDOW (window); | |
41ad069b | 1272 | |
02d4b97d | 1273 | if (part == ON_MODE_LINE || part == ON_HEADER_LINE) |
41ad069b EZ |
1274 | { |
1275 | /* Mouse is on the mode or top line. */ | |
02d4b97d | 1276 | IT_note_mode_line_highlight (w, x, part == ON_MODE_LINE); |
41ad069b EZ |
1277 | return; |
1278 | } | |
c655f6fd KS |
1279 | |
1280 | IT_set_mouse_pointer (0); | |
41ad069b EZ |
1281 | |
1282 | /* Are we in a window whose display is up to date? | |
1283 | And verify the buffer's text has not changed. */ | |
02d4b97d | 1284 | if (part == ON_TEXT |
41ad069b EZ |
1285 | && EQ (w->window_end_valid, w->buffer) |
1286 | && XFASTINT (w->last_modified) == BUF_MODIFF (XBUFFER (w->buffer)) | |
1287 | && (XFASTINT (w->last_overlay_modified) | |
1288 | == BUF_OVERLAY_MODIFF (XBUFFER (w->buffer)))) | |
1289 | { | |
56e19ec4 | 1290 | int pos, i, nrows = w->current_matrix->nrows; |
41ad069b EZ |
1291 | struct glyph_row *row; |
1292 | struct glyph *glyph; | |
1293 | ||
1294 | /* Find the glyph under X/Y. */ | |
1295 | glyph = NULL; | |
440ffd67 | 1296 | if (y >= 0 && y < nrows) |
41ad069b EZ |
1297 | { |
1298 | row = MATRIX_ROW (w->current_matrix, y); | |
440ffd67 EZ |
1299 | /* Give up if some row before the one we are looking for is |
1300 | not enabled. */ | |
1301 | for (i = 0; i <= y; i++) | |
1302 | if (!MATRIX_ROW (w->current_matrix, i)->enabled_p) | |
1303 | break; | |
1304 | if (i > y /* all rows upto and including the one at Y are enabled */ | |
41ad069b EZ |
1305 | && row->displays_text_p |
1306 | && x < window_box_width (w, TEXT_AREA)) | |
1307 | { | |
1308 | glyph = row->glyphs[TEXT_AREA]; | |
1309 | if (x >= row->used[TEXT_AREA]) | |
1310 | glyph = NULL; | |
1311 | else | |
1312 | { | |
1313 | glyph += x; | |
1314 | if (!BUFFERP (glyph->object)) | |
1315 | glyph = NULL; | |
1316 | } | |
1317 | } | |
1318 | } | |
1319 | ||
1320 | /* Clear mouse face if X/Y not over text. */ | |
1321 | if (glyph == NULL) | |
1322 | { | |
1323 | clear_mouse_face (dpyinfo); | |
1324 | return; | |
1325 | } | |
1326 | ||
1327 | if (!BUFFERP (glyph->object)) | |
1328 | abort (); | |
1329 | pos = glyph->charpos; | |
1330 | ||
1331 | /* Check for mouse-face and help-echo. */ | |
1332 | { | |
1333 | extern Lisp_Object Qmouse_face; | |
56e19ec4 | 1334 | Lisp_Object mouse_face, overlay, position, *overlay_vec; |
3b8c0c70 | 1335 | int noverlays, obegv, ozv; |
41ad069b | 1336 | struct buffer *obuf; |
41ad069b EZ |
1337 | |
1338 | /* If we get an out-of-range value, return now; avoid an error. */ | |
1339 | if (pos > BUF_Z (XBUFFER (w->buffer))) | |
1340 | return; | |
1341 | ||
1342 | /* Make the window's buffer temporarily current for | |
1343 | overlays_at and compute_char_face. */ | |
1344 | obuf = current_buffer; | |
1345 | current_buffer = XBUFFER (w->buffer); | |
1346 | obegv = BEGV; | |
1347 | ozv = ZV; | |
1348 | BEGV = BEG; | |
1349 | ZV = Z; | |
1350 | ||
1351 | /* Is this char mouse-active or does it have help-echo? */ | |
1352 | XSETINT (position, pos); | |
1353 | ||
1a8da670 KS |
1354 | /* Put all the overlays we want in a vector in overlay_vec. */ |
1355 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, NULL, 0); | |
f0a4139c | 1356 | /* Sort overlays into increasing priority order. */ |
41ad069b EZ |
1357 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
1358 | ||
1359 | /* Check mouse-face highlighting. */ | |
1360 | if (! (EQ (window, dpyinfo->mouse_face_window) | |
1361 | && y >= dpyinfo->mouse_face_beg_row | |
1362 | && y <= dpyinfo->mouse_face_end_row | |
1363 | && (y > dpyinfo->mouse_face_beg_row | |
1364 | || x >= dpyinfo->mouse_face_beg_col) | |
1365 | && (y < dpyinfo->mouse_face_end_row | |
1366 | || x < dpyinfo->mouse_face_end_col | |
1367 | || dpyinfo->mouse_face_past_end))) | |
1368 | { | |
1369 | /* Clear the display of the old active region, if any. */ | |
1370 | clear_mouse_face (dpyinfo); | |
1371 | ||
1372 | /* Find highest priority overlay that has a mouse-face prop. */ | |
1373 | overlay = Qnil; | |
f0a4139c | 1374 | for (i = noverlays - 1; i >= 0; --i) |
41ad069b EZ |
1375 | { |
1376 | mouse_face = Foverlay_get (overlay_vec[i], Qmouse_face); | |
1377 | if (!NILP (mouse_face)) | |
1378 | { | |
1379 | overlay = overlay_vec[i]; | |
1380 | break; | |
1381 | } | |
1382 | } | |
1383 | ||
1384 | /* If no overlay applies, get a text property. */ | |
1385 | if (NILP (overlay)) | |
1386 | mouse_face = Fget_text_property (position, Qmouse_face, | |
1387 | w->buffer); | |
1388 | ||
1389 | /* Handle the overlay case. */ | |
1390 | if (! NILP (overlay)) | |
1391 | { | |
1392 | /* Find the range of text around this char that | |
1393 | should be active. */ | |
1394 | Lisp_Object before, after; | |
0f8b27ea | 1395 | EMACS_INT ignore; |
41ad069b EZ |
1396 | |
1397 | before = Foverlay_start (overlay); | |
1398 | after = Foverlay_end (overlay); | |
1399 | /* Record this as the current active region. */ | |
1400 | fast_find_position (w, XFASTINT (before), | |
1401 | &dpyinfo->mouse_face_beg_col, | |
1402 | &dpyinfo->mouse_face_beg_row); | |
1403 | dpyinfo->mouse_face_past_end | |
1404 | = !fast_find_position (w, XFASTINT (after), | |
1405 | &dpyinfo->mouse_face_end_col, | |
1406 | &dpyinfo->mouse_face_end_row); | |
1407 | dpyinfo->mouse_face_window = window; | |
1408 | dpyinfo->mouse_face_face_id | |
1409 | = face_at_buffer_position (w, pos, 0, 0, | |
0d6239f1 | 1410 | &ignore, pos + 1, |
6970f632 CY |
1411 | !dpyinfo->mouse_face_hidden, |
1412 | -1); | |
41ad069b EZ |
1413 | |
1414 | /* Display it as active. */ | |
1415 | show_mouse_face (dpyinfo, 1); | |
1416 | } | |
1417 | /* Handle the text property case. */ | |
1418 | else if (! NILP (mouse_face)) | |
1419 | { | |
1420 | /* Find the range of text around this char that | |
1421 | should be active. */ | |
1422 | Lisp_Object before, after, beginning, end; | |
0f8b27ea | 1423 | EMACS_INT ignore; |
41ad069b EZ |
1424 | |
1425 | beginning = Fmarker_position (w->start); | |
1426 | XSETINT (end, (BUF_Z (XBUFFER (w->buffer)) | |
1427 | - XFASTINT (w->window_end_pos))); | |
1428 | before | |
1429 | = Fprevious_single_property_change (make_number (pos + 1), | |
1430 | Qmouse_face, | |
1431 | w->buffer, beginning); | |
1432 | after | |
1433 | = Fnext_single_property_change (position, Qmouse_face, | |
1434 | w->buffer, end); | |
1435 | /* Record this as the current active region. */ | |
1436 | fast_find_position (w, XFASTINT (before), | |
1437 | &dpyinfo->mouse_face_beg_col, | |
1438 | &dpyinfo->mouse_face_beg_row); | |
1439 | dpyinfo->mouse_face_past_end | |
1440 | = !fast_find_position (w, XFASTINT (after), | |
1441 | &dpyinfo->mouse_face_end_col, | |
1442 | &dpyinfo->mouse_face_end_row); | |
1443 | dpyinfo->mouse_face_window = window; | |
1444 | dpyinfo->mouse_face_face_id | |
1445 | = face_at_buffer_position (w, pos, 0, 0, | |
0d6239f1 | 1446 | &ignore, pos + 1, |
6970f632 CY |
1447 | !dpyinfo->mouse_face_hidden, |
1448 | -1); | |
41ad069b EZ |
1449 | |
1450 | /* Display it as active. */ | |
1451 | show_mouse_face (dpyinfo, 1); | |
1452 | } | |
1453 | } | |
1454 | ||
1455 | /* Look for a `help-echo' property. */ | |
1456 | { | |
1457 | Lisp_Object help; | |
1458 | extern Lisp_Object Qhelp_echo; | |
1459 | ||
1460 | /* Check overlays first. */ | |
1461 | help = Qnil; | |
f0a4139c EZ |
1462 | for (i = noverlays - 1; i >= 0 && NILP (help); --i) |
1463 | { | |
1464 | overlay = overlay_vec[i]; | |
1465 | help = Foverlay_get (overlay, Qhelp_echo); | |
1466 | } | |
56e19ec4 | 1467 | |
b7e80413 | 1468 | if (!NILP (help)) |
48c14970 | 1469 | { |
02d4b97d | 1470 | help_echo_string = help; |
48c14970 | 1471 | help_echo_window = window; |
f0a4139c | 1472 | help_echo_object = overlay; |
48c14970 EZ |
1473 | help_echo_pos = pos; |
1474 | } | |
1475 | /* Try text properties. */ | |
1476 | else if (NILP (help) | |
1477 | && ((STRINGP (glyph->object) | |
1478 | && glyph->charpos >= 0 | |
d5db4077 | 1479 | && glyph->charpos < SCHARS (glyph->object)) |
48c14970 EZ |
1480 | || (BUFFERP (glyph->object) |
1481 | && glyph->charpos >= BEGV | |
1482 | && glyph->charpos < ZV))) | |
1483 | { | |
1484 | help = Fget_text_property (make_number (glyph->charpos), | |
1485 | Qhelp_echo, glyph->object); | |
1486 | if (!NILP (help)) | |
1487 | { | |
02d4b97d | 1488 | help_echo_string = help; |
48c14970 EZ |
1489 | help_echo_window = window; |
1490 | help_echo_object = glyph->object; | |
1491 | help_echo_pos = glyph->charpos; | |
1492 | } | |
1493 | } | |
41ad069b | 1494 | } |
56e19ec4 | 1495 | |
41ad069b EZ |
1496 | BEGV = obegv; |
1497 | ZV = ozv; | |
1498 | current_buffer = obuf; | |
1499 | } | |
1500 | } | |
1501 | } | |
1502 | ||
71f65669 | 1503 | static void |
3e1944a3 | 1504 | IT_clear_end_of_line (struct frame *f, int first_unused) |
f32d4091 KS |
1505 | { |
1506 | char *spaces, *sp; | |
56e19ec4 | 1507 | int i, j, offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 | 1508 | extern int fatal_error_in_progress; |
3e1944a3 | 1509 | struct tty_display_info *tty = FRAME_TTY (f); |
aa9ce936 | 1510 | |
2d764c78 | 1511 | if (new_pos_X >= first_unused || fatal_error_in_progress) |
aa9ce936 | 1512 | return; |
f32d4091 KS |
1513 | |
1514 | IT_set_face (0); | |
2d764c78 | 1515 | i = (j = first_unused - new_pos_X) * 2; |
3e1944a3 EZ |
1516 | if (tty->termscript) |
1517 | fprintf (tty->termscript, "<CLR:EOL[%d..%d)>", new_pos_X, first_unused); | |
f32d4091 | 1518 | spaces = sp = alloca (i); |
56e19ec4 | 1519 | |
f32d4091 | 1520 | while (--j >= 0) |
aee81730 | 1521 | { |
f32d4091 KS |
1522 | *sp++ = ' '; |
1523 | *sp++ = ScreenAttrib; | |
aee81730 RS |
1524 | } |
1525 | ||
f32d4091 | 1526 | mouse_off_maybe (); |
039274cf EZ |
1527 | dosmemput (spaces, i, (int)ScreenPrimary + offset); |
1528 | if (screen_virtual_segment) | |
1529 | dosv_refresh_virtual_screen (offset, i / 2); | |
2d764c78 EZ |
1530 | |
1531 | /* clear_end_of_line_raw on term.c leaves the cursor at first_unused. | |
1532 | Let's follow their lead, in case someone relies on this. */ | |
1533 | new_pos_X = first_unused; | |
aee81730 RS |
1534 | } |
1535 | ||
71f65669 | 1536 | static void |
3e1944a3 | 1537 | IT_clear_screen (struct frame *f) |
f32d4091 | 1538 | { |
3e1944a3 EZ |
1539 | struct tty_display_info *tty = FRAME_TTY (f); |
1540 | ||
1541 | if (tty->termscript) | |
1542 | fprintf (tty->termscript, "<CLR:SCR>"); | |
deece6f5 EZ |
1543 | /* We are sometimes called (from clear_garbaged_frames) when a new |
1544 | frame is being created, but its faces are not yet realized. In | |
1545 | such a case we cannot call IT_set_face, since it will fail to find | |
1546 | any valid faces and will abort. Instead, use the initial screen | |
1547 | colors; that should mimic what a Unix tty does, which simply clears | |
1548 | the screen with whatever default colors are in use. */ | |
1549 | if (FACE_FROM_ID (SELECTED_FRAME (), DEFAULT_FACE_ID) == NULL) | |
1550 | ScreenAttrib = (initial_screen_colors[0] << 4) | initial_screen_colors[1]; | |
1551 | else | |
1552 | IT_set_face (0); | |
f32d4091 KS |
1553 | mouse_off (); |
1554 | ScreenClear (); | |
039274cf EZ |
1555 | if (screen_virtual_segment) |
1556 | dosv_refresh_virtual_screen (0, screen_size); | |
f32d4091 KS |
1557 | new_pos_X = new_pos_Y = 0; |
1558 | } | |
1559 | ||
71f65669 | 1560 | static void |
3e1944a3 | 1561 | IT_clear_to_end (struct frame *f) |
f32d4091 | 1562 | { |
3e1944a3 EZ |
1563 | struct tty_display_info *tty = FRAME_TTY (f); |
1564 | ||
1565 | if (tty->termscript) | |
1566 | fprintf (tty->termscript, "<CLR:EOS>"); | |
f32d4091 KS |
1567 | |
1568 | while (new_pos_Y < screen_size_Y) { | |
1569 | new_pos_X = 0; | |
3e1944a3 | 1570 | IT_clear_end_of_line (f, screen_size_X); |
f32d4091 KS |
1571 | new_pos_Y++; |
1572 | } | |
1573 | } | |
1574 | ||
71f65669 | 1575 | static void |
3e1944a3 | 1576 | IT_cursor_to (struct frame *f, int y, int x) |
f32d4091 | 1577 | { |
3e1944a3 EZ |
1578 | struct tty_display_info *tty = FRAME_TTY (f); |
1579 | ||
1580 | if (tty->termscript) | |
1581 | fprintf (tty->termscript, "\n<XY=%dx%d>", x, y); | |
f32d4091 KS |
1582 | new_pos_X = x; |
1583 | new_pos_Y = y; | |
1584 | } | |
1585 | ||
fc171623 KH |
1586 | static int cursor_cleared; |
1587 | ||
d1d5dc19 | 1588 | static void |
fc171623 KH |
1589 | IT_display_cursor (int on) |
1590 | { | |
3e1944a3 EZ |
1591 | struct tty_display_info *tty = CURTTY (); |
1592 | ||
fc171623 KH |
1593 | if (on && cursor_cleared) |
1594 | { | |
1595 | ScreenSetCursor (current_pos_Y, current_pos_X); | |
1596 | cursor_cleared = 0; | |
b04021eb EZ |
1597 | if (tty->termscript) |
1598 | fprintf (tty->termscript, "\nCURSOR ON"); | |
fc171623 KH |
1599 | } |
1600 | else if (!on && !cursor_cleared) | |
1601 | { | |
1602 | ScreenSetCursor (-1, -1); | |
1603 | cursor_cleared = 1; | |
b04021eb EZ |
1604 | if (tty->termscript) |
1605 | fprintf (tty->termscript, "\nCURSOR OFF"); | |
fc171623 KH |
1606 | } |
1607 | } | |
1608 | ||
1609 | /* Emacs calls cursor-movement functions a lot when it updates the | |
1610 | display (probably a legacy of old terminals where you cannot | |
1611 | update a screen line without first moving the cursor there). | |
1612 | However, cursor movement is expensive on MSDOS (it calls a slow | |
1613 | BIOS function and requires 2 mode switches), while actual screen | |
1614 | updates access the video memory directly and don't depend on | |
1615 | cursor position. To avoid slowing down the redisplay, we cheat: | |
1616 | all functions that move the cursor only set internal variables | |
1617 | which record the cursor position, whereas the cursor is only | |
1618 | moved to its final position whenever screen update is complete. | |
1619 | ||
1620 | `IT_cmgoto' is called from the keyboard reading loop and when the | |
1621 | frame update is complete. This means that we are ready for user | |
1622 | input, so we update the cursor position to show where the point is, | |
1623 | and also make the mouse pointer visible. | |
1624 | ||
1625 | Special treatment is required when the cursor is in the echo area, | |
1626 | to put the cursor at the end of the text displayed there. */ | |
1627 | ||
71f65669 EZ |
1628 | static void |
1629 | IT_cmgoto (FRAME_PTR f) | |
fc171623 KH |
1630 | { |
1631 | /* Only set the cursor to where it should be if the display is | |
1632 | already in sync with the window contents. */ | |
2d764c78 | 1633 | int update_cursor_pos = 1; /* MODIFF == unchanged_modified; */ |
3e1944a3 | 1634 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 EZ |
1635 | |
1636 | /* FIXME: This needs to be rewritten for the new redisplay, or | |
1637 | removed. */ | |
1638 | #if 0 | |
06da1de1 EZ |
1639 | static int previous_pos_X = -1; |
1640 | ||
2d764c78 EZ |
1641 | update_cursor_pos = 1; /* temporary!!! */ |
1642 | ||
06da1de1 EZ |
1643 | /* If the display is in sync, forget any previous knowledge about |
1644 | cursor position. This is primarily for unexpected events like | |
1645 | C-g in the minibuffer. */ | |
1646 | if (update_cursor_pos && previous_pos_X >= 0) | |
1647 | previous_pos_X = -1; | |
1648 | /* If we are in the echo area, put the cursor at the | |
1649 | end of the echo area message. */ | |
fc171623 | 1650 | if (!update_cursor_pos |
c655f6fd | 1651 | && WINDOW_TOP_EDGE_LINE (XWINDOW (FRAME_MINIBUF_WINDOW (f))) <= new_pos_Y) |
fc171623 | 1652 | { |
06da1de1 EZ |
1653 | int tem_X = current_pos_X, dummy; |
1654 | ||
1655 | if (echo_area_glyphs) | |
1656 | { | |
1657 | tem_X = echo_area_glyphs_length; | |
1658 | /* Save current cursor position, to be restored after the | |
1659 | echo area message is erased. Only remember one level | |
1660 | of previous cursor position. */ | |
1661 | if (previous_pos_X == -1) | |
1662 | ScreenGetCursor (&dummy, &previous_pos_X); | |
1663 | } | |
1664 | else if (previous_pos_X >= 0) | |
1665 | { | |
1666 | /* We wind up here after the echo area message is erased. | |
1667 | Restore the cursor position we remembered above. */ | |
1668 | tem_X = previous_pos_X; | |
1669 | previous_pos_X = -1; | |
1670 | } | |
9a599a60 | 1671 | |
06da1de1 | 1672 | if (current_pos_X != tem_X) |
9a599a60 EZ |
1673 | { |
1674 | new_pos_X = tem_X; | |
1675 | update_cursor_pos = 1; | |
1676 | } | |
fc171623 | 1677 | } |
2d764c78 | 1678 | #endif |
fc171623 KH |
1679 | |
1680 | if (update_cursor_pos | |
1681 | && (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y)) | |
1682 | { | |
1683 | ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X); | |
3e1944a3 EZ |
1684 | if (tty->termscript) |
1685 | fprintf (tty->termscript, "\n<CURSOR:%dx%d>", current_pos_X, current_pos_Y); | |
fc171623 KH |
1686 | } |
1687 | ||
1688 | /* Maybe cursor is invisible, so make it visible. */ | |
1689 | IT_display_cursor (1); | |
1690 | ||
1691 | /* Mouse pointer should be always visible if we are waiting for | |
1692 | keyboard input. */ | |
1693 | if (!mouse_visible) | |
1694 | mouse_on (); | |
1695 | } | |
1696 | ||
71f65669 | 1697 | static void |
41ad069b | 1698 | IT_update_begin (struct frame *f) |
f32d4091 | 1699 | { |
3e1944a3 | 1700 | struct tty_display_info *display_info = FRAME_X_DISPLAY_INFO (f); |
b9f80d41 | 1701 | struct frame *mouse_face_frame = display_info->mouse_face_mouse_frame; |
41ad069b | 1702 | |
7ccd1daf EZ |
1703 | if (display_info->termscript) |
1704 | fprintf (display_info->termscript, "\n\n<UPDATE_BEGIN"); | |
1705 | ||
41ad069b EZ |
1706 | BLOCK_INPUT; |
1707 | ||
b9f80d41 | 1708 | if (f && f == mouse_face_frame) |
41ad069b EZ |
1709 | { |
1710 | /* Don't do highlighting for mouse motion during the update. */ | |
1711 | display_info->mouse_face_defer = 1; | |
1712 | ||
1713 | /* If F needs to be redrawn, simply forget about any prior mouse | |
1714 | highlighting. */ | |
1715 | if (FRAME_GARBAGED_P (f)) | |
1716 | display_info->mouse_face_window = Qnil; | |
1717 | ||
1718 | /* Can we tell that this update does not affect the window | |
1719 | where the mouse highlight is? If so, no need to turn off. | |
48c14970 EZ |
1720 | Likewise, don't do anything if none of the enabled rows |
1721 | contains glyphs highlighted in mouse face. */ | |
8ccb9a54 EZ |
1722 | if (!NILP (display_info->mouse_face_window) |
1723 | && WINDOWP (display_info->mouse_face_window)) | |
41ad069b EZ |
1724 | { |
1725 | struct window *w = XWINDOW (display_info->mouse_face_window); | |
1726 | int i; | |
1727 | ||
8ccb9a54 EZ |
1728 | /* If the mouse highlight is in the window that was deleted |
1729 | (e.g., if it was popped by completion), clear highlight | |
1730 | unconditionally. */ | |
1731 | if (NILP (w->buffer)) | |
1732 | display_info->mouse_face_window = Qnil; | |
1733 | else | |
1734 | { | |
1735 | for (i = 0; i < w->desired_matrix->nrows; ++i) | |
48c14970 EZ |
1736 | if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i) |
1737 | && MATRIX_ROW (w->current_matrix, i)->mouse_face_p) | |
8ccb9a54 EZ |
1738 | break; |
1739 | } | |
41ad069b | 1740 | |
8ccb9a54 | 1741 | if (NILP (w->buffer) || i < w->desired_matrix->nrows) |
41ad069b EZ |
1742 | clear_mouse_face (display_info); |
1743 | } | |
1744 | } | |
b9f80d41 | 1745 | else if (mouse_face_frame && !FRAME_LIVE_P (mouse_face_frame)) |
41ad069b EZ |
1746 | { |
1747 | /* If the frame with mouse highlight was deleted, invalidate the | |
1748 | highlight info. */ | |
1749 | display_info->mouse_face_beg_row = display_info->mouse_face_beg_col = -1; | |
1750 | display_info->mouse_face_end_row = display_info->mouse_face_end_col = -1; | |
1751 | display_info->mouse_face_window = Qnil; | |
1752 | display_info->mouse_face_deferred_gc = 0; | |
1753 | display_info->mouse_face_mouse_frame = NULL; | |
1754 | } | |
1755 | ||
1756 | UNBLOCK_INPUT; | |
f32d4091 KS |
1757 | } |
1758 | ||
71f65669 | 1759 | static void |
41ad069b | 1760 | IT_update_end (struct frame *f) |
f32d4091 | 1761 | { |
7ccd1daf EZ |
1762 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
1763 | ||
1764 | if (dpyinfo->termscript) | |
1765 | fprintf (dpyinfo->termscript, "\n<UPDATE_END\n"); | |
1766 | dpyinfo->mouse_face_defer = 0; | |
41ad069b EZ |
1767 | } |
1768 | ||
1769 | static void | |
1770 | IT_frame_up_to_date (struct frame *f) | |
1771 | { | |
3e1944a3 | 1772 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
0c3cfc51 EZ |
1773 | Lisp_Object new_cursor, frame_desired_cursor; |
1774 | struct window *sw; | |
41ad069b EZ |
1775 | |
1776 | if (dpyinfo->mouse_face_deferred_gc | |
b9f80d41 | 1777 | || (f && f == dpyinfo->mouse_face_mouse_frame)) |
41ad069b EZ |
1778 | { |
1779 | BLOCK_INPUT; | |
1780 | if (dpyinfo->mouse_face_mouse_frame) | |
1781 | IT_note_mouse_highlight (dpyinfo->mouse_face_mouse_frame, | |
1782 | dpyinfo->mouse_face_mouse_x, | |
1783 | dpyinfo->mouse_face_mouse_y); | |
1784 | dpyinfo->mouse_face_deferred_gc = 0; | |
1785 | UNBLOCK_INPUT; | |
1786 | } | |
1787 | ||
0c3cfc51 EZ |
1788 | /* Set the cursor type to whatever they wanted. In a minibuffer |
1789 | window, we want the cursor to appear only if we are reading input | |
1790 | from this window, and we want the cursor to be taken from the | |
1791 | frame parameters. For the selected window, we use either its | |
1792 | buffer-local value or the value from the frame parameters if the | |
1793 | buffer doesn't define its local value for the cursor type. */ | |
1794 | sw = XWINDOW (f->selected_window); | |
1795 | frame_desired_cursor = Fcdr (Fassq (Qcursor_type, f->param_alist)); | |
1796 | if (cursor_in_echo_area | |
1797 | && FRAME_HAS_MINIBUF_P (f) | |
1798 | && EQ (FRAME_MINIBUF_WINDOW (f), echo_area_window) | |
1799 | && sw == XWINDOW (echo_area_window)) | |
1800 | new_cursor = frame_desired_cursor; | |
1801 | else | |
1802 | { | |
1803 | struct buffer *b = XBUFFER (sw->buffer); | |
1804 | ||
1805 | if (EQ (b->cursor_type, Qt)) | |
1806 | new_cursor = frame_desired_cursor; | |
1807 | else if (NILP (b->cursor_type)) /* nil means no cursor */ | |
1808 | new_cursor = Fcons (Qbar, make_number (0)); | |
1809 | else | |
1810 | new_cursor = b->cursor_type; | |
1811 | } | |
1812 | ||
1813 | IT_set_cursor_type (f, new_cursor); | |
8ba01a32 | 1814 | |
41ad069b | 1815 | IT_cmgoto (f); /* position cursor when update is done */ |
f32d4091 | 1816 | } |
1b94449f | 1817 | |
c77f6f1b EZ |
1818 | /* Copy LEN glyphs displayed on a single line whose vertical position |
1819 | is YPOS, beginning at horizontal position XFROM to horizontal | |
1820 | position XTO, by moving blocks in the video memory. Used by | |
1821 | functions that insert and delete glyphs. */ | |
1822 | static void | |
1823 | IT_copy_glyphs (int xfrom, int xto, size_t len, int ypos) | |
1824 | { | |
1825 | /* The offsets of source and destination relative to the | |
1826 | conventional memorty selector. */ | |
1827 | int from = 2 * (xfrom + screen_size_X * ypos) + ScreenPrimary; | |
1828 | int to = 2 * (xto + screen_size_X * ypos) + ScreenPrimary; | |
1829 | ||
1830 | if (from == to || len <= 0) | |
1831 | return; | |
1832 | ||
1833 | _farsetsel (_dos_ds); | |
1834 | ||
1835 | /* The source and destination might overlap, so we need to move | |
1836 | glyphs non-destructively. */ | |
1837 | if (from > to) | |
1838 | { | |
1839 | for ( ; len; from += 2, to += 2, len--) | |
1840 | _farnspokew (to, _farnspeekw (from)); | |
1841 | } | |
1842 | else | |
1843 | { | |
1844 | from += (len - 1) * 2; | |
1845 | to += (len - 1) * 2; | |
1846 | for ( ; len; from -= 2, to -= 2, len--) | |
1847 | _farnspokew (to, _farnspeekw (from)); | |
1848 | } | |
1849 | if (screen_virtual_segment) | |
1850 | dosv_refresh_virtual_screen (ypos * screen_size_X * 2, screen_size_X); | |
1851 | } | |
1852 | ||
1853 | /* Insert and delete glyphs. */ | |
aa9ce936 | 1854 | static void |
3a8ce822 | 1855 | IT_insert_glyphs (struct frame *f, struct glyph *start, int len) |
aa9ce936 | 1856 | { |
c77f6f1b EZ |
1857 | int shift_by_width = screen_size_X - (new_pos_X + len); |
1858 | ||
1859 | /* Shift right the glyphs from the nominal cursor position to the | |
1860 | end of this line. */ | |
1861 | IT_copy_glyphs (new_pos_X, new_pos_X + len, shift_by_width, new_pos_Y); | |
1862 | ||
1863 | /* Now write the glyphs to be inserted. */ | |
3e1944a3 | 1864 | IT_write_glyphs (f, start, len); |
aa9ce936 EZ |
1865 | } |
1866 | ||
1867 | static void | |
3a8ce822 | 1868 | IT_delete_glyphs (struct frame *f, int n) |
aa9ce936 EZ |
1869 | { |
1870 | abort (); | |
1871 | } | |
1872 | ||
211c7152 | 1873 | /* set-window-configuration on window.c needs this. */ |
3bb1f22f | 1874 | void |
3a8ce822 | 1875 | x_set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval) |
3bb1f22f | 1876 | { |
211c7152 EZ |
1877 | set_menu_bar_lines (f, value, oldval); |
1878 | } | |
3bb1f22f | 1879 | |
984f5aaa | 1880 | /* This was copied from xfaces.c */ |
3bb1f22f | 1881 | |
984f5aaa EZ |
1882 | extern Lisp_Object Qbackground_color; |
1883 | extern Lisp_Object Qforeground_color; | |
8ba01a32 | 1884 | Lisp_Object Qreverse; |
211c7152 | 1885 | extern Lisp_Object Qtitle; |
3bb1f22f | 1886 | |
48ffe371 RS |
1887 | /* IT_set_terminal_modes is called when emacs is started, |
1888 | resumed, and whenever the screen is redrawn! */ | |
f32d4091 | 1889 | |
71f65669 | 1890 | static void |
3e1944a3 | 1891 | IT_set_terminal_modes (struct terminal *term) |
f32d4091 | 1892 | { |
3e1944a3 EZ |
1893 | struct tty_display_info *tty; |
1894 | ||
1895 | /* If called with initial terminal, it's too early to do anything | |
1896 | useful. */ | |
1897 | if (term->type == output_initial) | |
1898 | return; | |
1899 | ||
1900 | tty = term->display_info.tty; | |
1901 | ||
1902 | if (tty->termscript) | |
1903 | fprintf (tty->termscript, "\n<SET_TERM>"); | |
f32d4091 KS |
1904 | |
1905 | screen_size_X = ScreenCols (); | |
1906 | screen_size_Y = ScreenRows (); | |
1907 | screen_size = screen_size_X * screen_size_Y; | |
56e19ec4 | 1908 | |
f32d4091 KS |
1909 | new_pos_X = new_pos_Y = 0; |
1910 | current_pos_X = current_pos_Y = -1; | |
1911 | ||
1912 | if (term_setup_done) | |
1913 | return; | |
1914 | term_setup_done = 1; | |
56e19ec4 | 1915 | |
f32d4091 KS |
1916 | startup_screen_size_X = screen_size_X; |
1917 | startup_screen_size_Y = screen_size_Y; | |
c9adab25 | 1918 | startup_screen_attrib = ScreenAttrib; |
f32d4091 | 1919 | |
039274cf EZ |
1920 | /* Is DOS/V (or any other RSIS software which relocates |
1921 | the screen) installed? */ | |
1922 | { | |
1923 | unsigned short es_value; | |
1924 | __dpmi_regs regs; | |
1925 | ||
1926 | regs.h.ah = 0xfe; /* get relocated screen address */ | |
1927 | if (ScreenPrimary == 0xb0000UL || ScreenPrimary == 0xb8000UL) | |
1928 | regs.x.es = (ScreenPrimary >> 4) & 0xffff; | |
1929 | else if (screen_old_address) /* already switched to Japanese mode once */ | |
1930 | regs.x.es = (screen_old_address >> 4) & 0xffff; | |
1931 | else | |
1932 | regs.x.es = ScreenMode () == 7 ? 0xb000 : 0xb800; | |
1933 | regs.x.di = 0; | |
1934 | es_value = regs.x.es; | |
1935 | __dpmi_int (0x10, ®s); | |
1936 | ||
d1d5dc19 | 1937 | if (regs.x.es != es_value) |
039274cf | 1938 | { |
d1d5dc19 EZ |
1939 | /* screen_old_address is only set if ScreenPrimary does NOT |
1940 | already point to the relocated buffer address returned by | |
1941 | the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets | |
1942 | ScreenPrimary to that address at startup under DOS/V. */ | |
1943 | if (regs.x.es != (ScreenPrimary >> 4) & 0xffff) | |
1944 | screen_old_address = ScreenPrimary; | |
039274cf EZ |
1945 | screen_virtual_segment = regs.x.es; |
1946 | screen_virtual_offset = regs.x.di; | |
1947 | ScreenPrimary = (screen_virtual_segment << 4) + screen_virtual_offset; | |
1948 | } | |
1949 | } | |
039274cf | 1950 | |
f32d4091 KS |
1951 | ScreenGetCursor (&startup_pos_Y, &startup_pos_X); |
1952 | ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2)); | |
1953 | ||
76ac1508 | 1954 | bright_bg (); |
f32d4091 KS |
1955 | } |
1956 | ||
48ffe371 RS |
1957 | /* IT_reset_terminal_modes is called when emacs is |
1958 | suspended or killed. */ | |
f32d4091 | 1959 | |
71f65669 | 1960 | static void |
3e1944a3 | 1961 | IT_reset_terminal_modes (struct terminal *term) |
f32d4091 | 1962 | { |
c9adab25 KH |
1963 | int display_row_start = (int) ScreenPrimary; |
1964 | int saved_row_len = startup_screen_size_X * 2; | |
56e19ec4 | 1965 | int update_row_len = ScreenCols () * 2, current_rows = ScreenRows (); |
c9adab25 KH |
1966 | int to_next_row = update_row_len; |
1967 | unsigned char *saved_row = startup_screen_buffer; | |
56e19ec4 | 1968 | int cursor_pos_X = ScreenCols () - 1, cursor_pos_Y = ScreenRows () - 1; |
3e1944a3 | 1969 | struct tty_display_info *tty = term->display_info.tty; |
c9adab25 | 1970 | |
3e1944a3 EZ |
1971 | if (tty->termscript) |
1972 | fprintf (tty->termscript, "\n<RESET_TERM>"); | |
f32d4091 | 1973 | |
f32d4091 KS |
1974 | if (!term_setup_done) |
1975 | return; | |
56e19ec4 | 1976 | |
c9adab25 | 1977 | mouse_off (); |
b36701cc RS |
1978 | |
1979 | /* Leave the video system in the same state as we found it, | |
1980 | as far as the blink/bright-background bit is concerned. */ | |
1981 | maybe_enable_blinking (); | |
06b1ea13 | 1982 | |
c9adab25 KH |
1983 | /* We have a situation here. |
1984 | We cannot just do ScreenUpdate(startup_screen_buffer) because | |
1985 | the luser could have changed screen dimensions inside Emacs | |
1986 | and failed (or didn't want) to restore them before killing | |
1987 | Emacs. ScreenUpdate() uses the *current* screen dimensions and | |
1988 | thus will happily use memory outside what was allocated for | |
1989 | `startup_screen_buffer'. | |
1990 | Thus we only restore as much as the current screen dimensions | |
1991 | can hold, and clear the rest (if the saved screen is smaller than | |
1992 | the current) with the color attribute saved at startup. The cursor | |
1993 | is also restored within the visible dimensions. */ | |
1994 | ||
1995 | ScreenAttrib = startup_screen_attrib; | |
c9adab25 | 1996 | |
06b1ea13 EZ |
1997 | /* Don't restore the screen if we are exiting less than 2 seconds |
1998 | after startup: we might be crashing, and the screen might show | |
1999 | some vital clues to what's wrong. */ | |
2000 | if (clock () - startup_time >= 2*CLOCKS_PER_SEC) | |
c9adab25 | 2001 | { |
06b1ea13 | 2002 | ScreenClear (); |
039274cf | 2003 | if (screen_virtual_segment) |
06b1ea13 EZ |
2004 | dosv_refresh_virtual_screen (0, screen_size); |
2005 | ||
2006 | if (update_row_len > saved_row_len) | |
2007 | update_row_len = saved_row_len; | |
2008 | if (current_rows > startup_screen_size_Y) | |
2009 | current_rows = startup_screen_size_Y; | |
2010 | ||
3e1944a3 EZ |
2011 | if (tty->termscript) |
2012 | fprintf (tty->termscript, "<SCREEN RESTORED (dimensions=%dx%d)>\n", | |
06b1ea13 EZ |
2013 | update_row_len / 2, current_rows); |
2014 | ||
2015 | while (current_rows--) | |
2016 | { | |
2017 | dosmemput (saved_row, update_row_len, display_row_start); | |
2018 | if (screen_virtual_segment) | |
2019 | dosv_refresh_virtual_screen (display_row_start - ScreenPrimary, | |
2020 | update_row_len / 2); | |
2021 | saved_row += saved_row_len; | |
2022 | display_row_start += to_next_row; | |
2023 | } | |
c9adab25 KH |
2024 | } |
2025 | if (startup_pos_X < cursor_pos_X) | |
2026 | cursor_pos_X = startup_pos_X; | |
2027 | if (startup_pos_Y < cursor_pos_Y) | |
2028 | cursor_pos_Y = startup_pos_Y; | |
2029 | ||
2030 | ScreenSetCursor (cursor_pos_Y, cursor_pos_X); | |
2031 | xfree (startup_screen_buffer); | |
3e1944a3 | 2032 | startup_screen_buffer = NULL; |
f32d4091 KS |
2033 | |
2034 | term_setup_done = 0; | |
2035 | } | |
2036 | ||
71f65669 | 2037 | static void |
3e1944a3 | 2038 | IT_set_terminal_window (struct frame *f, int foo) |
f32d4091 KS |
2039 | { |
2040 | } | |
2041 | ||
2d764c78 EZ |
2042 | /* Remember the screen colors of the curent frame, to serve as the |
2043 | default colors for newly-created frames. */ | |
2d764c78 EZ |
2044 | DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors, |
2045 | Smsdos_remember_default_colors, 1, 1, 0, | |
70da46c3 | 2046 | doc: /* Remember the screen colors of the current frame. */) |
5842a27b | 2047 | (Lisp_Object frame) |
2d764c78 | 2048 | { |
2d764c78 EZ |
2049 | struct frame *f; |
2050 | ||
b7826503 | 2051 | CHECK_FRAME (frame); |
f12dae2f | 2052 | f = XFRAME (frame); |
2d764c78 | 2053 | |
ff12cd1d EZ |
2054 | /* This function is called after applying default-frame-alist to the |
2055 | initial frame. At that time, if reverse-colors option was | |
2056 | specified in default-frame-alist, it was already applied, and | |
f12dae2f EZ |
2057 | frame colors are reversed. */ |
2058 | initial_screen_colors[0] = FRAME_FOREGROUND_PIXEL (f); | |
2059 | initial_screen_colors[1] = FRAME_BACKGROUND_PIXEL (f); | |
2d764c78 EZ |
2060 | } |
2061 | ||
f32d4091 | 2062 | void |
3a8ce822 | 2063 | IT_set_frame_parameters (struct frame *f, Lisp_Object alist) |
f32d4091 KS |
2064 | { |
2065 | Lisp_Object tail; | |
56e19ec4 | 2066 | int i, j, length = XINT (Flength (alist)); |
db722735 RS |
2067 | Lisp_Object *parms |
2068 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2069 | Lisp_Object *values | |
2070 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2d764c78 | 2071 | /* Do we have to reverse the foreground and background colors? */ |
8ba01a32 | 2072 | int reverse = EQ (Fcdr (Fassq (Qreverse, f->param_alist)), Qt); |
2d764c78 | 2073 | int redraw = 0, fg_set = 0, bg_set = 0; |
56e19ec4 | 2074 | unsigned long orig_fg, orig_bg; |
546701f5 | 2075 | Lisp_Object frame_bg, frame_fg; |
3e1944a3 | 2076 | struct tty_display_info *tty = FRAME_TTY (f); |
1e6255ae EZ |
2077 | extern Lisp_Object Qmenu_bar_lines; |
2078 | extern Lisp_Object Vmenu_bar_mode; | |
2079 | int menu_bar_lines_defined = | |
2080 | !NILP (Fassq (Qmenu_bar_lines, Vdefault_frame_alist)); | |
2d764c78 EZ |
2081 | |
2082 | /* If we are creating a new frame, begin with the original screen colors | |
2083 | used for the initial frame. */ | |
76ea4cc9 | 2084 | if (!f->default_face_done_p |
2d764c78 EZ |
2085 | && initial_screen_colors[0] != -1 && initial_screen_colors[1] != -1) |
2086 | { | |
2087 | FRAME_FOREGROUND_PIXEL (f) = initial_screen_colors[0]; | |
2088 | FRAME_BACKGROUND_PIXEL (f) = initial_screen_colors[1]; | |
f12dae2f | 2089 | init_frame_faces (f); |
76ea4cc9 | 2090 | f->default_face_done_p = 1; |
2d764c78 | 2091 | } |
76ea4cc9 EZ |
2092 | orig_fg = reverse ? FRAME_BACKGROUND_PIXEL (f) : FRAME_FOREGROUND_PIXEL (f); |
2093 | orig_bg = reverse ? FRAME_FOREGROUND_PIXEL (f) : FRAME_BACKGROUND_PIXEL (f); | |
db722735 RS |
2094 | |
2095 | /* Extract parm names and values into those vectors. */ | |
2096 | i = 0; | |
f32d4091 KS |
2097 | for (tail = alist; CONSP (tail); tail = Fcdr (tail)) |
2098 | { | |
db722735 | 2099 | Lisp_Object elt; |
f32d4091 KS |
2100 | |
2101 | elt = Fcar (tail); | |
db722735 | 2102 | parms[i] = Fcar (elt); |
b7826503 | 2103 | CHECK_SYMBOL (parms[i]); |
db722735 RS |
2104 | values[i] = Fcdr (elt); |
2105 | i++; | |
2106 | } | |
2107 | ||
2d764c78 | 2108 | j = i; |
db722735 | 2109 | |
2d764c78 EZ |
2110 | for (i = 0; i < j; i++) |
2111 | { | |
1e21fe48 EZ |
2112 | Lisp_Object prop, val; |
2113 | ||
2114 | prop = parms[i]; | |
2115 | val = values[i]; | |
2d764c78 | 2116 | |
8ba01a32 | 2117 | if (EQ (prop, Qreverse)) |
2d764c78 | 2118 | reverse = EQ (val, Qt); |
1e6255ae EZ |
2119 | else if (!menu_bar_lines_defined && EQ (prop, Qmenu_bar_lines)) |
2120 | menu_bar_lines_defined = 1; | |
2d764c78 | 2121 | } |
546701f5 | 2122 | |
76ea4cc9 | 2123 | if (tty->termscript && reverse) |
3e1944a3 | 2124 | fprintf (tty->termscript, "<INVERSE-VIDEO>\n"); |
2d764c78 EZ |
2125 | |
2126 | /* Now process the alist elements in reverse of specified order. */ | |
db722735 RS |
2127 | for (i--; i >= 0; i--) |
2128 | { | |
76ea4cc9 | 2129 | Lisp_Object prop, val; |
1e21fe48 EZ |
2130 | |
2131 | prop = parms[i]; | |
2132 | val = values[i]; | |
f32d4091 | 2133 | |
4e825084 | 2134 | if (EQ (prop, Qforeground_color)) |
f32d4091 | 2135 | { |
76ea4cc9 | 2136 | unsigned long new_color = load_color (f, NULL, val, reverse |
2d764c78 EZ |
2137 | ? LFACE_BACKGROUND_INDEX |
2138 | : LFACE_FOREGROUND_INDEX); | |
3b620731 EZ |
2139 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2140 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2141 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2142 | { |
76ea4cc9 EZ |
2143 | if (!reverse) |
2144 | { | |
2145 | FRAME_FOREGROUND_PIXEL (f) = new_color; | |
2146 | /* Make sure the foreground of the default face for | |
2147 | this frame is changed as well. */ | |
2148 | update_face_from_frame_parameter (f, Qforeground_color, val); | |
2149 | fg_set = 1; | |
2150 | if (tty->termscript) | |
2151 | fprintf (tty->termscript, "<FGCOLOR %lu>\n", new_color); | |
2152 | } | |
2153 | else | |
2154 | { | |
2155 | FRAME_BACKGROUND_PIXEL (f) = new_color; | |
2156 | update_face_from_frame_parameter (f, Qbackground_color, val); | |
2157 | bg_set = 1; | |
2158 | if (tty->termscript) | |
2159 | fprintf (tty->termscript, "<BGCOLOR %lu>\n", new_color); | |
2160 | } | |
f32d4091 KS |
2161 | redraw = 1; |
2162 | } | |
2163 | } | |
4e825084 | 2164 | else if (EQ (prop, Qbackground_color)) |
f32d4091 | 2165 | { |
76ea4cc9 | 2166 | unsigned long new_color = load_color (f, NULL, val, reverse |
2d764c78 EZ |
2167 | ? LFACE_FOREGROUND_INDEX |
2168 | : LFACE_BACKGROUND_INDEX); | |
3b620731 EZ |
2169 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2170 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2171 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2172 | { |
76ea4cc9 EZ |
2173 | if (!reverse) |
2174 | { | |
2175 | FRAME_BACKGROUND_PIXEL (f) = new_color; | |
2176 | /* Make sure the background of the default face for | |
2177 | this frame is changed as well. */ | |
2178 | bg_set = 1; | |
2179 | update_face_from_frame_parameter (f, Qbackground_color, val); | |
2180 | if (tty->termscript) | |
2181 | fprintf (tty->termscript, "<BGCOLOR %lu>\n", new_color); | |
2182 | } | |
2183 | else | |
2184 | { | |
2185 | FRAME_FOREGROUND_PIXEL (f) = new_color; | |
2186 | fg_set = 1; | |
2187 | update_face_from_frame_parameter (f, Qforeground_color, val); | |
2188 | if (tty->termscript) | |
2189 | fprintf (tty->termscript, "<FGCOLOR %lu>\n", new_color); | |
2190 | } | |
f32d4091 KS |
2191 | redraw = 1; |
2192 | } | |
2193 | } | |
211c7152 EZ |
2194 | else if (EQ (prop, Qtitle)) |
2195 | { | |
2196 | x_set_title (f, val); | |
3e1944a3 EZ |
2197 | if (tty->termscript) |
2198 | fprintf (tty->termscript, "<TITLE: %s>\n", SDATA (val)); | |
211c7152 | 2199 | } |
8ba01a32 EZ |
2200 | else if (EQ (prop, Qcursor_type)) |
2201 | { | |
2202 | IT_set_cursor_type (f, val); | |
3e1944a3 EZ |
2203 | if (tty->termscript) |
2204 | fprintf (tty->termscript, "<CTYPE: %s>\n", | |
a0738471 EZ |
2205 | EQ (val, Qbar) || EQ (val, Qhbar) |
2206 | || CONSP (val) && (EQ (XCAR (val), Qbar) | |
2207 | || EQ (XCAR (val), Qhbar)) | |
8ba01a32 EZ |
2208 | ? "bar" : "box"); |
2209 | } | |
3e1944a3 EZ |
2210 | else if (EQ (prop, Qtty_type)) |
2211 | { | |
2212 | internal_terminal_init (); | |
2213 | if (tty->termscript) | |
2214 | fprintf (tty->termscript, "<TERM_INIT done, TTY_TYPE: %.*s>\n", | |
2215 | SBYTES (val), SDATA (val)); | |
2216 | } | |
db722735 | 2217 | store_frame_param (f, prop, val); |
2d764c78 | 2218 | } |
db722735 | 2219 | |
1e6255ae EZ |
2220 | /* If menu-bar-lines is neither in the frame parameters nor in |
2221 | default-frame-alist, set it according to menu-bar-mode. */ | |
2222 | if (!menu_bar_lines_defined) | |
2223 | { | |
2224 | store_frame_param (f, Qmenu_bar_lines, | |
2225 | NILP (Vmenu_bar_mode) | |
2226 | ? make_number (0) : make_number (1)); | |
2227 | if (tty->termscript) | |
2228 | fprintf (tty->termscript, "<MENU BAR LINES DEFAULTED: %d\n", | |
2229 | !NILP (Vmenu_bar_mode)); | |
2230 | } | |
2231 | ||
2d764c78 EZ |
2232 | /* If they specified "reverse", but not the colors, we need to swap |
2233 | the current frame colors. */ | |
76ea4cc9 | 2234 | if (reverse) |
2d764c78 | 2235 | { |
1e21fe48 EZ |
2236 | Lisp_Object frame; |
2237 | ||
2d764c78 EZ |
2238 | if (!fg_set) |
2239 | { | |
76ea4cc9 EZ |
2240 | FRAME_FOREGROUND_PIXEL (f) = orig_bg; |
2241 | update_face_from_frame_parameter (f, Qforeground_color, | |
2242 | tty_color_name (f, orig_bg)); | |
2d764c78 EZ |
2243 | redraw = 1; |
2244 | } | |
2245 | if (!bg_set) | |
2246 | { | |
76ea4cc9 EZ |
2247 | FRAME_BACKGROUND_PIXEL (f) = orig_fg; |
2248 | update_face_from_frame_parameter (f, Qbackground_color, | |
2249 | tty_color_name (f, orig_fg)); | |
2d764c78 EZ |
2250 | redraw = 1; |
2251 | } | |
f32d4091 KS |
2252 | } |
2253 | ||
2254 | if (redraw) | |
2255 | { | |
2d764c78 EZ |
2256 | face_change_count++; /* forces xdisp.c to recompute basic faces */ |
2257 | if (f == SELECTED_FRAME()) | |
3bb1f22f | 2258 | redraw_frame (f); |
f32d4091 KS |
2259 | } |
2260 | } | |
2261 | ||
a7cf9151 EZ |
2262 | extern void init_frame_faces (FRAME_PTR); |
2263 | ||
f32d4091 KS |
2264 | #endif /* !HAVE_X_WINDOWS */ |
2265 | ||
2266 | ||
48ffe371 RS |
2267 | /* Do we need the internal terminal? */ |
2268 | ||
f32d4091 | 2269 | void |
3a8ce822 | 2270 | internal_terminal_init (void) |
f32d4091 | 2271 | { |
2306a735 | 2272 | static int init_needed = 1; |
56e19ec4 | 2273 | char *term = getenv ("TERM"), *colors; |
2d764c78 | 2274 | struct frame *sf = SELECTED_FRAME(); |
3e1944a3 | 2275 | struct tty_display_info *tty; |
f32d4091 KS |
2276 | |
2277 | #ifdef HAVE_X_WINDOWS | |
2278 | if (!inhibit_window_system) | |
2279 | return; | |
2280 | #endif | |
2281 | ||
3e1944a3 EZ |
2282 | /* If this is the initial terminal, we are done here. */ |
2283 | if (sf->output_method == output_initial) | |
2284 | return; | |
2285 | ||
f32d4091 KS |
2286 | internal_terminal |
2287 | = (!noninteractive) && term && !strcmp (term, "internal"); | |
2288 | ||
f32d4091 KS |
2289 | #ifndef HAVE_X_WINDOWS |
2290 | if (!internal_terminal || inhibit_window_system) | |
2291 | { | |
2d764c78 | 2292 | sf->output_method = output_termcap; |
f32d4091 KS |
2293 | return; |
2294 | } | |
2295 | ||
3e1944a3 | 2296 | tty = FRAME_TTY (sf); |
f12dae2f EZ |
2297 | current_kboard->Vwindow_system = Qpc; |
2298 | sf->output_method = output_msdos_raw; | |
2306a735 | 2299 | if (init_needed) |
3e1944a3 | 2300 | { |
2306a735 EZ |
2301 | if (!tty->termscript && getenv ("EMACSTEST")) |
2302 | tty->termscript = fopen (getenv ("EMACSTEST"), "wt"); | |
2303 | if (tty->termscript) | |
2304 | { | |
2305 | time_t now = time (NULL); | |
2306 | struct tm *tnow = localtime (&now); | |
2307 | char tbuf[100]; | |
3e1944a3 | 2308 | |
2306a735 EZ |
2309 | strftime (tbuf, sizeof (tbuf) - 1, "%a %b %e %Y %H:%M:%S %Z", tnow); |
2310 | fprintf (tty->termscript, "\nEmacs session started at %s\n", tbuf); | |
2311 | fprintf (tty->termscript, "=====================\n\n"); | |
2312 | } | |
3e1944a3 | 2313 | |
2306a735 EZ |
2314 | Vinitial_window_system = Qpc; |
2315 | Vwindow_system_version = make_number (23); /* RE Emacs version */ | |
2316 | tty->terminal->type = output_msdos_raw; | |
039274cf | 2317 | |
2306a735 EZ |
2318 | /* If Emacs was dumped on DOS/V machine, forget the stale VRAM |
2319 | address. */ | |
2320 | screen_old_address = 0; | |
039274cf | 2321 | |
2306a735 EZ |
2322 | /* Forget the stale screen colors as well. */ |
2323 | initial_screen_colors[0] = initial_screen_colors[1] = -1; | |
2d764c78 | 2324 | |
2306a735 EZ |
2325 | FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = 7; /* White */ |
2326 | FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = 0; /* Black */ | |
2327 | bright_bg (); | |
2328 | colors = getenv ("EMACSCOLORS"); | |
2329 | if (colors && strlen (colors) >= 2) | |
2330 | { | |
2331 | /* The colors use 4 bits each (we enable bright background). */ | |
2332 | if (isdigit (colors[0])) | |
2333 | colors[0] -= '0'; | |
2334 | else if (isxdigit (colors[0])) | |
2335 | colors[0] -= (isupper (colors[0]) ? 'A' : 'a') - 10; | |
2336 | if (colors[0] >= 0 && colors[0] < 16) | |
2337 | FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = colors[0]; | |
2338 | if (isdigit (colors[1])) | |
2339 | colors[1] -= '0'; | |
2340 | else if (isxdigit (colors[1])) | |
2341 | colors[1] -= (isupper (colors[1]) ? 'A' : 'a') - 10; | |
2342 | if (colors[1] >= 0 && colors[1] < 16) | |
2343 | FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = colors[1]; | |
2344 | } | |
2345 | the_only_display_info.mouse_face_mouse_frame = NULL; | |
2346 | the_only_display_info.mouse_face_deferred_gc = 0; | |
2347 | the_only_display_info.mouse_face_beg_row = | |
2348 | the_only_display_info.mouse_face_beg_col = -1; | |
2349 | the_only_display_info.mouse_face_end_row = | |
2350 | the_only_display_info.mouse_face_end_col = -1; | |
2351 | the_only_display_info.mouse_face_face_id = DEFAULT_FACE_ID; | |
2352 | the_only_display_info.mouse_face_window = Qnil; | |
2353 | the_only_display_info.mouse_face_mouse_x = | |
2354 | the_only_display_info.mouse_face_mouse_y = 0; | |
2355 | the_only_display_info.mouse_face_defer = 0; | |
2356 | the_only_display_info.mouse_face_hidden = 0; | |
2357 | ||
2358 | if (have_mouse) /* detected in dos_ttraw, which see */ | |
2359 | { | |
2360 | have_mouse = 1; /* enable mouse */ | |
2361 | mouse_visible = 0; | |
2362 | mouse_setup_buttons (mouse_button_count); | |
2363 | tty->terminal->mouse_position_hook = &mouse_get_pos; | |
2364 | mouse_init (); | |
2365 | } | |
f32d4091 | 2366 | |
2306a735 EZ |
2367 | if (tty->termscript && screen_size) |
2368 | fprintf (tty->termscript, "<SCREEN SAVED (dimensions=%dx%d)>\n", | |
2369 | screen_size_X, screen_size_Y); | |
f32d4091 | 2370 | |
f12dae2f | 2371 | init_frame_faces (sf); |
2306a735 EZ |
2372 | init_needed = 0; |
2373 | } | |
f32d4091 KS |
2374 | #endif |
2375 | } | |
2376 | ||
3e1944a3 EZ |
2377 | void |
2378 | initialize_msdos_display (struct terminal *term) | |
2379 | { | |
2380 | term->rif = 0; /* we don't support window-based display */ | |
2381 | term->cursor_to_hook = term->raw_cursor_to_hook = IT_cursor_to; | |
2382 | term->clear_to_end_hook = IT_clear_to_end; | |
2383 | term->clear_frame_hook = IT_clear_screen; | |
2384 | term->clear_end_of_line_hook = IT_clear_end_of_line; | |
2385 | term->ins_del_lines_hook = 0; | |
2386 | term->insert_glyphs_hook = IT_insert_glyphs; | |
2387 | term->write_glyphs_hook = IT_write_glyphs; | |
2388 | term->delete_glyphs_hook = IT_delete_glyphs; | |
2389 | term->ring_bell_hook = IT_ring_bell; | |
2390 | term->reset_terminal_modes_hook = IT_reset_terminal_modes; | |
2391 | term->set_terminal_modes_hook = IT_set_terminal_modes; | |
2392 | term->set_terminal_window_hook = IT_set_terminal_window; | |
2393 | term->update_begin_hook = IT_update_begin; | |
2394 | term->update_end_hook = IT_update_end; | |
2395 | term->frame_up_to_date_hook = IT_frame_up_to_date; | |
2396 | term->mouse_position_hook = 0; /* set later by dos_ttraw */ | |
2397 | term->frame_rehighlight_hook = 0; | |
2398 | term->frame_raise_lower_hook = 0; | |
2399 | term->set_vertical_scroll_bar_hook = 0; | |
2400 | term->condemn_scroll_bars_hook = 0; | |
2401 | term->redeem_scroll_bar_hook = 0; | |
2402 | term->judge_scroll_bars_hook = 0; | |
2403 | term->read_socket_hook = &tty_read_avail_input; /* from keyboard.c */ | |
2404 | } | |
2405 | ||
3a8ce822 EZ |
2406 | int |
2407 | dos_get_saved_screen (char **screen, int *rows, int *cols) | |
f32d4091 KS |
2408 | { |
2409 | #ifndef HAVE_X_WINDOWS | |
2410 | *screen = startup_screen_buffer; | |
2411 | *cols = startup_screen_size_X; | |
2412 | *rows = startup_screen_size_Y; | |
039274cf | 2413 | return *screen != (char *)0; |
f32d4091 KS |
2414 | #else |
2415 | return 0; | |
56e19ec4 | 2416 | #endif |
f32d4091 | 2417 | } |
3bb1f22f RS |
2418 | |
2419 | #ifndef HAVE_X_WINDOWS | |
2420 | ||
2421 | /* We are not X, but we can emulate it well enough for our needs... */ | |
2422 | void | |
2423 | check_x (void) | |
2424 | { | |
2d764c78 EZ |
2425 | if (! FRAME_MSDOS_P (SELECTED_FRAME())) |
2426 | error ("Not running under a window system"); | |
3bb1f22f RS |
2427 | } |
2428 | ||
2429 | #endif | |
2430 | ||
5063b150 | 2431 | \f |
f32d4091 KS |
2432 | /* ----------------------- Keyboard control ---------------------- |
2433 | * | |
2434 | * Keymaps reflect the following keyboard layout: | |
2435 | * | |
2436 | * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS | |
2437 | * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41) | |
2438 | * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET | |
2439 | * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT | |
2440 | * SPACE | |
2441 | */ | |
2442 | ||
d1d5dc19 EZ |
2443 | #define Ignore 0x0000 |
2444 | #define Normal 0x0000 /* normal key - alt changes scan-code */ | |
2445 | #define FctKey 0x1000 /* func key if c == 0, else c */ | |
2446 | #define Special 0x2000 /* func key even if c != 0 */ | |
2447 | #define ModFct 0x3000 /* special if mod-keys, else 'c' */ | |
2448 | #define Map 0x4000 /* alt scan-code, map to unshift/shift key */ | |
2449 | #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */ | |
2450 | #define Grey 0x6000 /* Grey keypad key */ | |
2451 | ||
2452 | #define Alt 0x0100 /* alt scan-code */ | |
2453 | #define Ctrl 0x0200 /* ctrl scan-code */ | |
2454 | #define Shift 0x0400 /* shift scan-code */ | |
2455 | ||
db9cd97a | 2456 | static int extended_kbd; /* 101 (102) keyboard present. */ |
f32d4091 | 2457 | |
d1d5dc19 EZ |
2458 | struct kbd_translate { |
2459 | unsigned char sc; | |
2460 | unsigned char ch; | |
2461 | unsigned short code; | |
2462 | }; | |
2463 | ||
f32d4091 KS |
2464 | struct dos_keyboard_map |
2465 | { | |
2466 | char *unshifted; | |
2467 | char *shifted; | |
2468 | char *alt_gr; | |
d1d5dc19 | 2469 | struct kbd_translate *translate_table; |
f32d4091 KS |
2470 | }; |
2471 | ||
2472 | ||
2473 | static struct dos_keyboard_map us_keyboard = { | |
2474 | /* 0 1 2 3 4 5 */ | |
2475 | /* 01234567890123456789012345678901234567890 12345678901234 */ | |
2476 | "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ", | |
2477 | /* 0123456789012345678901234567890123456789 012345678901234 */ | |
2478 | "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ", | |
d1d5dc19 EZ |
2479 | 0, /* no Alt-Gr key */ |
2480 | 0 /* no translate table */ | |
f32d4091 KS |
2481 | }; |
2482 | ||
2483 | static struct dos_keyboard_map fr_keyboard = { | |
2484 | /* 0 1 2 3 4 5 */ | |
2485 | /* 012 3456789012345678901234567890123456789012345678901234 */ | |
2486 |