Commit | Line | Data |
---|---|---|
c6a6499f | 1 | /* MS-DOS specific C utilities. -*- coding: raw-text -*- |
c658018f | 2 | Copyright (C) 1993, 94, 95, 96, 97, 1999, 2000, 01, 2003 |
1bd62036 | 3 | Free Software Foundation, Inc. |
1b94449f RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
edfc0d45 | 9 | the Free Software Foundation; either version 2, or (at your option) |
1b94449f RS |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
1b94449f | 21 | |
9da6e765 | 22 | /* Contributed by Morten Welinder */ |
f32d4091 | 23 | /* New display, keyboard, and mouse control by Kim F. Storm */ |
9da6e765 | 24 | |
1b94449f RS |
25 | /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */ |
26 | ||
48984716 | 27 | #include <config.h> |
1b94449f RS |
28 | |
29 | #ifdef MSDOS | |
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> |
a7cf9151 | 38 | #include <string.h> /* for bzero 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 */ |
1bd7b2c7 RS |
42 | #if __DJGPP__ >= 2 |
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 RS |
49 | #endif |
50 | ||
1b94449f RS |
51 | #include "msdos.h" |
52 | #include "systime.h" | |
53 | #include "termhooks.h" | |
aa9ce936 | 54 | #include "termchar.h" |
87485d6f | 55 | #include "dispextern.h" |
c77f6f1b | 56 | #include "dosfns.h" |
87485d6f | 57 | #include "termopts.h" |
aa9ce936 EZ |
58 | #include "charset.h" |
59 | #include "coding.h" | |
60 | #include "disptab.h" | |
1b94449f | 61 | #include "frame.h" |
87485d6f | 62 | #include "window.h" |
fc171623 KH |
63 | #include "buffer.h" |
64 | #include "commands.h" | |
41ad069b | 65 | #include "blockinput.h" |
97dd288b | 66 | #include "keyboard.h" |
7e4e2428 | 67 | #include "intervals.h" |
1b94449f RS |
68 | #include <go32.h> |
69 | #include <pc.h> | |
70 | #include <ctype.h> | |
71 | /* #include <process.h> */ | |
72 | /* Damn that local process.h! Instead we can define P_WAIT ourselves. */ | |
73 | #define P_WAIT 1 | |
74 | ||
d21e67b5 RS |
75 | #ifndef _USE_LFN |
76 | #define _USE_LFN 0 | |
77 | #endif | |
78 | ||
b36701cc RS |
79 | #ifndef _dos_ds |
80 | #define _dos_ds _go32_info_block.selector_for_linear_memory | |
81 | #endif | |
82 | ||
1bd7b2c7 RS |
83 | #if __DJGPP__ > 1 |
84 | ||
8748735b | 85 | #include <signal.h> |
417a04bb | 86 | #include "syssignal.h" |
8748735b | 87 | |
1bd7b2c7 RS |
88 | #ifndef SYSTEM_MALLOC |
89 | ||
90 | #ifdef GNU_MALLOC | |
91 | ||
92 | /* If other `malloc' than ours is used, force our `sbrk' behave like | |
93 | Unix programs expect (resize memory blocks to keep them contiguous). | |
94 | If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory, | |
95 | because that's what `gmalloc' expects to get. */ | |
96 | #include <crt0.h> | |
97 | ||
98 | #ifdef REL_ALLOC | |
99 | int _crt0_startup_flags = _CRT0_FLAG_UNIX_SBRK; | |
100 | #else /* not REL_ALLOC */ | |
101 | int _crt0_startup_flags = (_CRT0_FLAG_UNIX_SBRK | _CRT0_FLAG_FILL_SBRK_MEMORY); | |
102 | #endif /* not REL_ALLOC */ | |
103 | #endif /* GNU_MALLOC */ | |
104 | ||
105 | #endif /* not SYSTEM_MALLOC */ | |
106 | #endif /* __DJGPP__ > 1 */ | |
aee81730 RS |
107 | |
108 | static unsigned long | |
109 | event_timestamp () | |
110 | { | |
111 | struct time t; | |
112 | unsigned long s; | |
56e19ec4 | 113 | |
aee81730 RS |
114 | gettime (&t); |
115 | s = t.ti_min; | |
116 | s *= 60; | |
117 | s += t.ti_sec; | |
118 | s *= 1000; | |
119 | s += t.ti_hund * 10; | |
56e19ec4 | 120 | |
aee81730 RS |
121 | return s; |
122 | } | |
123 | ||
f32d4091 KS |
124 | \f |
125 | /* ------------------------ Mouse control --------------------------- | |
126 | * | |
127 | * Coordinates are in screen positions and zero based. | |
128 | * Mouse buttons are numbered from left to right and also zero based. | |
129 | */ | |
1b94449f | 130 | |
0c3cfc51 EZ |
131 | /* This used to be in termhooks.h, but mainstream Emacs code no longer |
132 | uses it, and it was removed... */ | |
133 | #define NUM_MOUSE_BUTTONS (5) | |
134 | ||
f32d4091 KS |
135 | int have_mouse; /* 0: no, 1: enabled, -1: disabled */ |
136 | static int mouse_visible; | |
1b94449f | 137 | |
f32d4091 KS |
138 | static int mouse_last_x; |
139 | static int mouse_last_y; | |
1b94449f | 140 | |
f32d4091 KS |
141 | static int mouse_button_translate[NUM_MOUSE_BUTTONS]; |
142 | static int mouse_button_count; | |
1b94449f | 143 | |
f32d4091 KS |
144 | void |
145 | mouse_on () | |
1b94449f | 146 | { |
1b94449f | 147 | union REGS regs; |
1b94449f | 148 | |
f32d4091 | 149 | if (have_mouse > 0 && !mouse_visible) |
1b94449f | 150 | { |
f32d4091 KS |
151 | if (termscript) |
152 | fprintf (termscript, "<M_ON>"); | |
153 | regs.x.ax = 0x0001; | |
154 | int86 (0x33, ®s, ®s); | |
155 | mouse_visible = 1; | |
1b94449f | 156 | } |
1b94449f RS |
157 | } |
158 | ||
f32d4091 KS |
159 | void |
160 | mouse_off () | |
1b94449f | 161 | { |
f32d4091 | 162 | union REGS regs; |
1b94449f | 163 | |
f32d4091 | 164 | if (have_mouse > 0 && mouse_visible) |
1b94449f | 165 | { |
f32d4091 KS |
166 | if (termscript) |
167 | fprintf (termscript, "<M_OFF>"); | |
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. */) | |
198 | (nbuttons) | |
8f190436 EZ |
199 | Lisp_Object nbuttons; |
200 | { | |
e7522695 EZ |
201 | int n; |
202 | ||
b7826503 | 203 | CHECK_NUMBER (nbuttons); |
e7522695 EZ |
204 | n = XINT (nbuttons); |
205 | if (n < 2 || n > 3) | |
206 | Fsignal (Qargs_out_of_range, | |
207 | Fcons (build_string ("only 2 or 3 mouse buttons are supported"), | |
208 | Fcons (nbuttons, Qnil))); | |
209 | mouse_setup_buttons (n); | |
8f190436 EZ |
210 | return Qnil; |
211 | } | |
212 | ||
211c7152 EZ |
213 | static void |
214 | mouse_get_xy (int *x, int *y) | |
215 | { | |
216 | union REGS regs; | |
217 | ||
218 | regs.x.ax = 0x0003; | |
219 | int86 (0x33, ®s, ®s); | |
220 | *x = regs.x.cx / 8; | |
221 | *y = regs.x.dx / 8; | |
222 | } | |
223 | ||
f32d4091 KS |
224 | void |
225 | mouse_moveto (x, y) | |
226 | int x, y; | |
1b94449f | 227 | { |
f32d4091 | 228 | union REGS regs; |
1b94449f | 229 | |
f32d4091 KS |
230 | if (termscript) |
231 | fprintf (termscript, "<M_XY=%dx%d>", x, y); | |
232 | regs.x.ax = 0x0004; | |
233 | mouse_last_x = regs.x.cx = x * 8; | |
234 | mouse_last_y = regs.x.dx = y * 8; | |
235 | int86 (0x33, ®s, ®s); | |
1b94449f RS |
236 | } |
237 | ||
f32d4091 KS |
238 | static int |
239 | mouse_pressed (b, xp, yp) | |
240 | int b, *xp, *yp; | |
1b94449f | 241 | { |
f32d4091 | 242 | union REGS regs; |
1b94449f | 243 | |
f32d4091 KS |
244 | if (b >= mouse_button_count) |
245 | return 0; | |
246 | regs.x.ax = 0x0005; | |
247 | regs.x.bx = mouse_button_translate[b]; | |
248 | int86 (0x33, ®s, ®s); | |
249 | if (regs.x.bx) | |
250 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
251 | return (regs.x.bx != 0); | |
1b94449f RS |
252 | } |
253 | ||
f32d4091 KS |
254 | static int |
255 | mouse_released (b, xp, yp) | |
256 | int b, *xp, *yp; | |
1b94449f RS |
257 | { |
258 | union REGS regs; | |
259 | ||
f32d4091 KS |
260 | if (b >= mouse_button_count) |
261 | return 0; | |
262 | regs.x.ax = 0x0006; | |
263 | regs.x.bx = mouse_button_translate[b]; | |
264 | int86 (0x33, ®s, ®s); | |
265 | if (regs.x.bx) | |
266 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
267 | return (regs.x.bx != 0); | |
1b94449f RS |
268 | } |
269 | ||
0c7bc1aa EZ |
270 | static int |
271 | mouse_button_depressed (b, xp, yp) | |
272 | int b, *xp, *yp; | |
273 | { | |
274 | union REGS regs; | |
275 | ||
276 | if (b >= mouse_button_count) | |
277 | return 0; | |
278 | regs.x.ax = 0x0003; | |
279 | int86 (0x33, ®s, ®s); | |
280 | if ((regs.x.bx & (1 << mouse_button_translate[b])) != 0) | |
281 | { | |
282 | *xp = regs.x.cx / 8; | |
283 | *yp = regs.x.dx / 8; | |
284 | return 1; | |
285 | } | |
286 | return 0; | |
287 | } | |
288 | ||
f32d4091 KS |
289 | void |
290 | mouse_get_pos (f, insist, bar_window, part, x, y, time) | |
291 | FRAME_PTR *f; | |
292 | int insist; | |
293 | Lisp_Object *bar_window, *x, *y; | |
294 | enum scroll_bar_part *part; | |
295 | unsigned long *time; | |
296 | { | |
297 | int ix, iy; | |
211c7152 EZ |
298 | Lisp_Object frame, tail; |
299 | ||
300 | /* Clear the mouse-moved flag for every frame on this display. */ | |
301 | FOR_EACH_FRAME (tail, frame) | |
302 | XFRAME (frame)->mouse_moved = 0; | |
f32d4091 | 303 | |
2d764c78 | 304 | *f = SELECTED_FRAME(); |
f32d4091 KS |
305 | *bar_window = Qnil; |
306 | mouse_get_xy (&ix, &iy); | |
f32d4091 | 307 | *time = event_timestamp (); |
211c7152 EZ |
308 | *x = make_number (mouse_last_x = ix); |
309 | *y = make_number (mouse_last_y = iy); | |
f32d4091 | 310 | } |
1b94449f | 311 | |
f32d4091 KS |
312 | static void |
313 | mouse_check_moved () | |
1b94449f | 314 | { |
aee81730 | 315 | int x, y; |
1b94449f | 316 | |
f32d4091 | 317 | mouse_get_xy (&x, &y); |
2d764c78 | 318 | SELECTED_FRAME()->mouse_moved |= (x != mouse_last_x || y != mouse_last_y); |
f32d4091 KS |
319 | mouse_last_x = x; |
320 | mouse_last_y = y; | |
321 | } | |
1b94449f | 322 | |
97dd288b EZ |
323 | /* Force the mouse driver to ``forget'' about any button clicks until |
324 | now. */ | |
325 | static void | |
326 | mouse_clear_clicks (void) | |
327 | { | |
328 | int b; | |
329 | ||
330 | for (b = 0; b < mouse_button_count; b++) | |
331 | { | |
332 | int dummy_x, dummy_y; | |
333 | ||
334 | (void) mouse_pressed (b, &dummy_x, &dummy_y); | |
335 | (void) mouse_released (b, &dummy_x, &dummy_y); | |
336 | } | |
337 | } | |
338 | ||
f32d4091 KS |
339 | void |
340 | mouse_init () | |
341 | { | |
342 | union REGS regs; | |
647c32eb | 343 | |
f32d4091 KS |
344 | if (termscript) |
345 | fprintf (termscript, "<M_INIT>"); | |
1b94449f | 346 | |
f32d4091 KS |
347 | regs.x.ax = 0x0021; |
348 | int86 (0x33, ®s, ®s); | |
091d0bdf | 349 | |
0c7bc1aa EZ |
350 | /* Reset the mouse last press/release info. It seems that Windows |
351 | doesn't do that automatically when function 21h is called, which | |
352 | causes Emacs to ``remember'' the click that switched focus to the | |
353 | window just before Emacs was started from that window. */ | |
97dd288b | 354 | mouse_clear_clicks (); |
0c7bc1aa | 355 | |
f32d4091 KS |
356 | regs.x.ax = 0x0007; |
357 | regs.x.cx = 0; | |
358 | regs.x.dx = 8 * (ScreenCols () - 1); | |
359 | int86 (0x33, ®s, ®s); | |
1b94449f | 360 | |
f32d4091 KS |
361 | regs.x.ax = 0x0008; |
362 | regs.x.cx = 0; | |
363 | regs.x.dx = 8 * (ScreenRows () - 1); | |
364 | int86 (0x33, ®s, ®s); | |
1b94449f | 365 | |
f32d4091 KS |
366 | mouse_moveto (0, 0); |
367 | mouse_visible = 0; | |
368 | } | |
3eb1dbb6 | 369 | \f |
f32d4091 KS |
370 | /* ------------------------- Screen control ---------------------- |
371 | * | |
372 | */ | |
aee81730 | 373 | |
f32d4091 | 374 | static int internal_terminal = 0; |
aee81730 | 375 | |
f32d4091 KS |
376 | #ifndef HAVE_X_WINDOWS |
377 | extern unsigned char ScreenAttrib; | |
378 | static int screen_face; | |
aee81730 | 379 | |
f32d4091 KS |
380 | static int screen_size_X; |
381 | static int screen_size_Y; | |
382 | static int screen_size; | |
1b94449f | 383 | |
f32d4091 KS |
384 | static int current_pos_X; |
385 | static int current_pos_Y; | |
386 | static int new_pos_X; | |
387 | static int new_pos_Y; | |
1b94449f | 388 | |
f32d4091 KS |
389 | static void *startup_screen_buffer; |
390 | static int startup_screen_size_X; | |
391 | static int startup_screen_size_Y; | |
392 | static int startup_pos_X; | |
393 | static int startup_pos_Y; | |
c9adab25 | 394 | static unsigned char startup_screen_attrib; |
1b94449f | 395 | |
06b1ea13 EZ |
396 | static clock_t startup_time; |
397 | ||
f32d4091 | 398 | static int term_setup_done; |
1b94449f | 399 | |
8ba01a32 EZ |
400 | static unsigned short outside_cursor; |
401 | ||
f32d4091 | 402 | /* Similar to the_only_frame. */ |
f6816f88 | 403 | struct x_output the_only_x_display; |
1b94449f | 404 | |
039274cf EZ |
405 | /* Support for DOS/V (allows Japanese characters to be displayed on |
406 | standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */ | |
407 | ||
408 | /* Holds the address of the text-mode screen buffer. */ | |
409 | static unsigned long screen_old_address = 0; | |
410 | /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */ | |
411 | static unsigned short screen_virtual_segment = 0; | |
412 | static unsigned short screen_virtual_offset = 0; | |
68026917 AI |
413 | /* A flag to control how to display unibyte 8-bit characters. */ |
414 | extern int unibyte_display_via_language_environment; | |
039274cf | 415 | |
a0738471 | 416 | Lisp_Object Qbar, Qhbar; |
8ba01a32 | 417 | |
9ccf54e9 | 418 | /* The screen colors of the current frame, which serve as the default |
deece6f5 EZ |
419 | colors for newly-created frames. */ |
420 | static int initial_screen_colors[2]; | |
421 | ||
039274cf EZ |
422 | #if __DJGPP__ > 1 |
423 | /* Update the screen from a part of relocated DOS/V screen buffer which | |
424 | begins at OFFSET and includes COUNT characters. */ | |
425 | static void | |
426 | dosv_refresh_virtual_screen (int offset, int count) | |
427 | { | |
428 | __dpmi_regs regs; | |
429 | ||
9ab8560d | 430 | if (offset < 0 || count < 0) /* paranoia; invalid values crash DOS/V */ |
40437cf5 EZ |
431 | return; |
432 | ||
039274cf EZ |
433 | regs.h.ah = 0xff; /* update relocated screen */ |
434 | regs.x.es = screen_virtual_segment; | |
435 | regs.x.di = screen_virtual_offset + offset; | |
436 | regs.x.cx = count; | |
437 | __dpmi_int (0x10, ®s); | |
438 | } | |
439 | #endif | |
440 | ||
d1d5dc19 | 441 | static void |
f32d4091 | 442 | dos_direct_output (y, x, buf, len) |
56e19ec4 | 443 | int x, y; |
f32d4091 KS |
444 | char *buf; |
445 | int len; | |
1b94449f | 446 | { |
40437cf5 EZ |
447 | int t0 = 2 * (x + y * screen_size_X); |
448 | int t = t0 + (int) ScreenPrimary; | |
039274cf | 449 | int l0 = len; |
fc171623 KH |
450 | |
451 | #if (__DJGPP__ < 2) | |
f32d4091 KS |
452 | while (--len >= 0) { |
453 | dosmemput (buf++, 1, t); | |
454 | t += 2; | |
455 | } | |
fc171623 KH |
456 | #else |
457 | /* This is faster. */ | |
458 | for (_farsetsel (_dos_ds); --len >= 0; t += 2, buf++) | |
459 | _farnspokeb (t, *buf); | |
039274cf EZ |
460 | |
461 | if (screen_virtual_segment) | |
462 | dosv_refresh_virtual_screen (t0, l0); | |
fc171623 | 463 | #endif |
1b94449f | 464 | } |
aee81730 | 465 | #endif |
1b94449f | 466 | |
1b94449f RS |
467 | /* Flash the screen as a substitute for BEEPs. */ |
468 | ||
f32d4091 | 469 | #if (__DJGPP__ < 2) |
49a09c76 | 470 | static void |
fcea9cd4 | 471 | do_visible_bell (xorattr) |
1b94449f RS |
472 | unsigned char xorattr; |
473 | { | |
49a09c76 | 474 | asm volatile |
7677c808 EZ |
475 | (" movb $1,%%dl \n\ |
476 | visible_bell_0: \n\ | |
477 | movl _ScreenPrimary,%%eax \n\ | |
478 | call dosmemsetup \n\ | |
479 | movl %%eax,%%ebx \n\ | |
480 | movl %1,%%ecx \n\ | |
481 | movb %0,%%al \n\ | |
482 | incl %%ebx \n\ | |
483 | visible_bell_1: \n\ | |
484 | xorb %%al,%%gs:(%%ebx) \n\ | |
485 | addl $2,%%ebx \n\ | |
486 | decl %%ecx \n\ | |
487 | jne visible_bell_1 \n\ | |
488 | decb %%dl \n\ | |
489 | jne visible_bell_3 \n\ | |
490 | visible_bell_2: \n\ | |
491 | movzwl %%ax,%%eax \n\ | |
492 | movzwl %%ax,%%eax \n\ | |
493 | movzwl %%ax,%%eax \n\ | |
494 | movzwl %%ax,%%eax \n\ | |
495 | decw %%cx \n\ | |
496 | jne visible_bell_2 \n\ | |
497 | jmp visible_bell_0 \n\ | |
ca986694 RS |
498 | visible_bell_3:" |
499 | : /* no output */ | |
f32d4091 | 500 | : "m" (xorattr), "g" (screen_size) |
ca986694 | 501 | : "%eax", "%ebx", /* "%gs",*/ "%ecx", "%edx"); |
1b94449f RS |
502 | } |
503 | ||
f32d4091 KS |
504 | static void |
505 | ScreenVisualBell (void) | |
506 | { | |
507 | /* This creates an xor-mask that will swap the default fore- and | |
508 | background colors. */ | |
509 | do_visible_bell (((the_only_x_display.foreground_pixel | |
510 | ^ the_only_x_display.background_pixel) | |
511 | * 0x11) & 0x7f); | |
512 | } | |
513 | #endif | |
514 | ||
515 | #ifndef HAVE_X_WINDOWS | |
516 | ||
b36701cc RS |
517 | static int blink_bit = -1; /* the state of the blink bit at startup */ |
518 | ||
76ac1508 RS |
519 | /* Enable bright background colors. */ |
520 | static void | |
521 | bright_bg (void) | |
522 | { | |
523 | union REGS regs; | |
524 | ||
b36701cc RS |
525 | /* Remember the original state of the blink/bright-background bit. |
526 | It is stored at 0040:0065h in the BIOS data area. */ | |
527 | if (blink_bit == -1) | |
528 | blink_bit = (_farpeekb (_dos_ds, 0x465) & 0x20) == 0x20; | |
529 | ||
76ac1508 RS |
530 | regs.h.bl = 0; |
531 | regs.x.ax = 0x1003; | |
532 | int86 (0x10, ®s, ®s); | |
533 | } | |
534 | ||
b36701cc RS |
535 | /* Disable bright background colors (and enable blinking) if we found |
536 | the video system in that state at startup. */ | |
537 | static void | |
538 | maybe_enable_blinking (void) | |
539 | { | |
540 | if (blink_bit == 1) | |
541 | { | |
542 | union REGS regs; | |
543 | ||
544 | regs.h.bl = 1; | |
545 | regs.x.ax = 0x1003; | |
546 | int86 (0x10, ®s, ®s); | |
547 | } | |
548 | } | |
549 | ||
8ba01a32 EZ |
550 | /* Return non-zero if the system has a VGA adapter. */ |
551 | static int | |
552 | vga_installed (void) | |
553 | { | |
554 | union REGS regs; | |
555 | ||
556 | regs.x.ax = 0x1a00; | |
557 | int86 (0x10, ®s, ®s); | |
558 | if (regs.h.al == 0x1a && regs.h.bl > 5 && regs.h.bl < 13) | |
559 | return 1; | |
560 | return 0; | |
561 | } | |
562 | ||
4a96d4d2 KH |
563 | /* Set the screen dimensions so that it can show no less than |
564 | ROWS x COLS frame. */ | |
48ffe371 | 565 | |
4a96d4d2 KH |
566 | void |
567 | dos_set_window_size (rows, cols) | |
568 | int *rows, *cols; | |
569 | { | |
570 | char video_name[30]; | |
4a96d4d2 | 571 | union REGS regs; |
56e19ec4 EZ |
572 | Lisp_Object video_mode; |
573 | int video_mode_value, have_vga = 0; | |
4a96d4d2 KH |
574 | int current_rows = ScreenRows (), current_cols = ScreenCols (); |
575 | ||
576 | if (*rows == current_rows && *cols == current_cols) | |
577 | return; | |
578 | ||
4a96d4d2 | 579 | mouse_off (); |
8ba01a32 | 580 | have_vga = vga_installed (); |
4a96d4d2 | 581 | |
48ffe371 | 582 | /* If the user specified a special video mode for these dimensions, |
4a96d4d2 KH |
583 | use that mode. */ |
584 | sprintf (video_name, "screen-dimensions-%dx%d", *rows, *cols); | |
585 | video_mode = XSYMBOL (Fintern_soft (build_string (video_name), | |
586 | Qnil))-> value; | |
587 | ||
588 | if (INTEGERP (video_mode) | |
589 | && (video_mode_value = XINT (video_mode)) > 0) | |
590 | { | |
591 | regs.x.ax = video_mode_value; | |
592 | int86 (0x10, ®s, ®s); | |
48ffe371 RS |
593 | |
594 | if (have_mouse) | |
595 | { | |
596 | /* Must hardware-reset the mouse, or else it won't update | |
597 | its notion of screen dimensions for some non-standard | |
598 | video modes. This is *painfully* slow... */ | |
599 | regs.x.ax = 0; | |
600 | int86 (0x33, ®s, ®s); | |
601 | } | |
4a96d4d2 KH |
602 | } |
603 | ||
604 | /* Find one of the dimensions supported by standard EGA/VGA | |
605 | which gives us at least the required dimensions. */ | |
606 | ||
607 | #if __DJGPP__ > 1 | |
608 | ||
609 | else | |
610 | { | |
611 | static struct { | |
56e19ec4 | 612 | int rows, need_vga; |
4a96d4d2 KH |
613 | } std_dimension[] = { |
614 | {25, 0}, | |
615 | {28, 1}, | |
616 | {35, 0}, | |
617 | {40, 1}, | |
618 | {43, 0}, | |
619 | {50, 1} | |
620 | }; | |
621 | int i = 0; | |
622 | ||
623 | while (i < sizeof (std_dimension) / sizeof (std_dimension[0])) | |
624 | { | |
625 | if (std_dimension[i].need_vga <= have_vga | |
626 | && std_dimension[i].rows >= *rows) | |
627 | { | |
628 | if (std_dimension[i].rows != current_rows | |
629 | || *cols != current_cols) | |
48ffe371 | 630 | _set_screen_lines (std_dimension[i].rows); |
4a96d4d2 KH |
631 | break; |
632 | } | |
48ffe371 | 633 | i++; |
4a96d4d2 KH |
634 | } |
635 | } | |
636 | ||
637 | #else /* not __DJGPP__ > 1 */ | |
638 | ||
639 | else if (*rows <= 25) | |
640 | { | |
641 | if (current_rows != 25 || current_cols != 80) | |
642 | { | |
643 | regs.x.ax = 3; | |
644 | int86 (0x10, ®s, ®s); | |
645 | regs.x.ax = 0x1101; | |
646 | regs.h.bl = 0; | |
647 | int86 (0x10, ®s, ®s); | |
648 | regs.x.ax = 0x1200; | |
649 | regs.h.bl = 32; | |
650 | int86 (0x10, ®s, ®s); | |
651 | regs.x.ax = 3; | |
652 | int86 (0x10, ®s, ®s); | |
653 | } | |
654 | } | |
655 | else if (*rows <= 50) | |
656 | if (have_vga && (current_rows != 50 || current_cols != 80) | |
657 | || *rows <= 43 && (current_rows != 43 || current_cols != 80)) | |
658 | { | |
659 | regs.x.ax = 3; | |
660 | int86 (0x10, ®s, ®s); | |
661 | regs.x.ax = 0x1112; | |
662 | regs.h.bl = 0; | |
663 | int86 (0x10, ®s, ®s); | |
664 | regs.x.ax = 0x1200; | |
665 | regs.h.bl = 32; | |
666 | int86 (0x10, ®s, ®s); | |
667 | regs.x.ax = 0x0100; | |
668 | regs.x.cx = 7; | |
669 | int86 (0x10, ®s, ®s); | |
670 | } | |
671 | #endif /* not __DJGPP__ > 1 */ | |
672 | ||
673 | if (have_mouse) | |
674 | { | |
4a96d4d2 KH |
675 | mouse_init (); |
676 | mouse_on (); | |
677 | } | |
678 | ||
679 | /* Tell the caller what dimensions have been REALLY set. */ | |
680 | *rows = ScreenRows (); | |
681 | *cols = ScreenCols (); | |
76ac1508 | 682 | |
bed43f1d EZ |
683 | /* Update Emacs' notion of screen dimensions. */ |
684 | screen_size_X = *cols; | |
685 | screen_size_Y = *rows; | |
686 | screen_size = *cols * *rows; | |
687 | ||
41ad069b EZ |
688 | #if __DJGPP__ > 1 |
689 | /* If the dimensions changed, the mouse highlight info is invalid. */ | |
690 | if (current_rows != *rows || current_cols != *cols) | |
691 | { | |
692 | struct frame *f = SELECTED_FRAME(); | |
693 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
694 | Lisp_Object window = dpyinfo->mouse_face_window; | |
695 | ||
696 | if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f) | |
697 | { | |
698 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
699 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
700 | dpyinfo->mouse_face_window = Qnil; | |
701 | } | |
702 | } | |
703 | #endif | |
704 | ||
76ac1508 RS |
705 | /* Enable bright background colors. */ |
706 | bright_bg (); | |
039274cf EZ |
707 | |
708 | /* FIXME: I'm not sure the above will run at all on DOS/V. But let's | |
709 | be defensive anyway. */ | |
710 | if (screen_virtual_segment) | |
711 | dosv_refresh_virtual_screen (0, *cols * *rows); | |
4a96d4d2 KH |
712 | } |
713 | ||
48ffe371 RS |
714 | /* If we write a character in the position where the mouse is, |
715 | the mouse cursor may need to be refreshed. */ | |
09e2ac30 RS |
716 | |
717 | static void | |
f32d4091 | 718 | mouse_off_maybe () |
09e2ac30 | 719 | { |
f32d4091 | 720 | int x, y; |
56e19ec4 | 721 | |
f32d4091 KS |
722 | if (!mouse_visible) |
723 | return; | |
56e19ec4 | 724 | |
f32d4091 KS |
725 | mouse_get_xy (&x, &y); |
726 | if (y != new_pos_Y || x < new_pos_X) | |
727 | return; | |
56e19ec4 | 728 | |
f32d4091 KS |
729 | mouse_off (); |
730 | } | |
731 | ||
8ba01a32 EZ |
732 | #define DEFAULT_CURSOR_START (-1) |
733 | #define DEFAULT_CURSOR_WIDTH (-1) | |
734 | #define BOX_CURSOR_WIDTH (-32) | |
735 | ||
736 | /* Set cursor to begin at scan line START_LINE in the character cell | |
737 | and extend for WIDTH scan lines. Scan lines are counted from top | |
738 | of the character cell, starting from zero. */ | |
739 | static void | |
740 | msdos_set_cursor_shape (struct frame *f, int start_line, int width) | |
741 | { | |
742 | #if __DJGPP__ > 1 | |
743 | unsigned desired_cursor; | |
744 | __dpmi_regs regs; | |
745 | int max_line, top_line, bot_line; | |
746 | ||
747 | /* Avoid the costly BIOS call if F isn't the currently selected | |
748 | frame. Allow for NULL as unconditionally meaning the selected | |
749 | frame. */ | |
750 | if (f && f != SELECTED_FRAME()) | |
751 | return; | |
752 | ||
753 | /* The character cell size in scan lines is stored at 40:85 in the | |
754 | BIOS data area. */ | |
755 | max_line = _farpeekw (_dos_ds, 0x485) - 1; | |
756 | switch (max_line) | |
757 | { | |
758 | default: /* this relies on CGA cursor emulation being ON! */ | |
759 | case 7: | |
760 | bot_line = 7; | |
761 | break; | |
762 | case 9: | |
763 | bot_line = 9; | |
764 | break; | |
765 | case 13: | |
766 | bot_line = 12; | |
767 | break; | |
768 | case 15: | |
769 | bot_line = 14; | |
770 | break; | |
771 | } | |
772 | ||
773 | if (width < 0) | |
774 | { | |
775 | if (width == BOX_CURSOR_WIDTH) | |
776 | { | |
777 | top_line = 0; | |
778 | bot_line = max_line; | |
779 | } | |
780 | else if (start_line != DEFAULT_CURSOR_START) | |
781 | { | |
782 | top_line = start_line; | |
783 | bot_line = top_line - width - 1; | |
784 | } | |
785 | else if (width != DEFAULT_CURSOR_WIDTH) | |
786 | { | |
787 | top_line = 0; | |
788 | bot_line = -1 - width; | |
789 | } | |
790 | else | |
791 | top_line = bot_line + 1; | |
792 | } | |
793 | else if (width == 0) | |
794 | { | |
795 | /* [31, 0] seems to DTRT for all screen sizes. */ | |
796 | top_line = 31; | |
797 | bot_line = 0; | |
798 | } | |
799 | else /* WIDTH is positive */ | |
800 | { | |
801 | if (start_line != DEFAULT_CURSOR_START) | |
802 | bot_line = start_line; | |
803 | top_line = bot_line - (width - 1); | |
804 | } | |
805 | ||
806 | /* If the current cursor shape is already what they want, we are | |
807 | history here. */ | |
808 | desired_cursor = ((top_line & 0x1f) << 8) | (bot_line & 0x1f); | |
809 | if (desired_cursor == _farpeekw (_dos_ds, 0x460)) | |
810 | return; | |
811 | ||
812 | regs.h.ah = 1; | |
813 | regs.x.cx = desired_cursor; | |
814 | __dpmi_int (0x10, ®s); | |
815 | #endif /* __DJGPP__ > 1 */ | |
816 | } | |
817 | ||
818 | static void | |
819 | IT_set_cursor_type (struct frame *f, Lisp_Object cursor_type) | |
820 | { | |
a0738471 | 821 | if (EQ (cursor_type, Qbar) || EQ (cursor_type, Qhbar)) |
8ba01a32 EZ |
822 | { |
823 | /* Just BAR means the normal EGA/VGA cursor. */ | |
824 | msdos_set_cursor_shape (f, DEFAULT_CURSOR_START, DEFAULT_CURSOR_WIDTH); | |
825 | } | |
a0738471 EZ |
826 | else if (CONSP (cursor_type) |
827 | && (EQ (XCAR (cursor_type), Qbar) | |
828 | || EQ (XCAR (cursor_type), Qhbar))) | |
8ba01a32 EZ |
829 | { |
830 | Lisp_Object bar_parms = XCDR (cursor_type); | |
831 | int width; | |
832 | ||
833 | if (INTEGERP (bar_parms)) | |
834 | { | |
835 | /* Feature: negative WIDTH means cursor at the top | |
836 | of the character cell, zero means invisible cursor. */ | |
837 | width = XINT (bar_parms); | |
838 | msdos_set_cursor_shape (f, width >= 0 ? DEFAULT_CURSOR_START : 0, | |
839 | width); | |
840 | } | |
841 | else if (CONSP (bar_parms) | |
842 | && INTEGERP (XCAR (bar_parms)) | |
843 | && INTEGERP (XCDR (bar_parms))) | |
844 | { | |
845 | int start_line = XINT (XCDR (bar_parms)); | |
846 | ||
847 | width = XINT (XCAR (bar_parms)); | |
848 | msdos_set_cursor_shape (f, start_line, width); | |
849 | } | |
850 | } | |
851 | else | |
852 | /* Treat anything unknown as "box cursor". This includes nil, so | |
853 | that a frame which doesn't specify a cursor type gets a box, | |
854 | which is the default in Emacs. */ | |
855 | msdos_set_cursor_shape (f, 0, BOX_CURSOR_WIDTH); | |
856 | } | |
857 | ||
71f65669 EZ |
858 | static void |
859 | IT_ring_bell (void) | |
f32d4091 KS |
860 | { |
861 | if (visible_bell) | |
aee81730 | 862 | { |
f32d4091 KS |
863 | mouse_off (); |
864 | ScreenVisualBell (); | |
aee81730 | 865 | } |
f32d4091 | 866 | else |
3635be47 RS |
867 | { |
868 | union REGS inregs, outregs; | |
869 | inregs.h.ah = 2; | |
870 | inregs.h.dl = 7; | |
871 | intdos (&inregs, &outregs); | |
872 | } | |
09e2ac30 RS |
873 | } |
874 | ||
c77f6f1b EZ |
875 | /* Given a face id FACE, extract the face parameters to be used for |
876 | display until the face changes. The face parameters (actually, its | |
877 | color) are used to construct the video attribute byte for each | |
878 | glyph during the construction of the buffer that is then blitted to | |
879 | the video RAM. */ | |
f32d4091 KS |
880 | static void |
881 | IT_set_face (int face) | |
882 | { | |
2d764c78 | 883 | struct frame *sf = SELECTED_FRAME(); |
546701f5 EZ |
884 | struct face *fp = FACE_FROM_ID (sf, face); |
885 | struct face *dfp = FACE_FROM_ID (sf, DEFAULT_FACE_ID); | |
886 | unsigned long fg, bg, dflt_fg, dflt_bg; | |
f32d4091 | 887 | |
c77f6f1b | 888 | if (!fp) |
e30aee93 | 889 | { |
546701f5 | 890 | fp = dfp; |
e30aee93 EZ |
891 | /* The default face for the frame should always be realized and |
892 | cached. */ | |
893 | if (!fp) | |
894 | abort (); | |
895 | } | |
f32d4091 | 896 | screen_face = face; |
c77f6f1b EZ |
897 | fg = fp->foreground; |
898 | bg = fp->background; | |
546701f5 EZ |
899 | dflt_fg = dfp->foreground; |
900 | dflt_bg = dfp->background; | |
c77f6f1b | 901 | |
abcce93a MB |
902 | /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* colors |
903 | mean use the colors of the default face. Note that we assume all | |
904 | 16 colors to be available for the background, since Emacs switches | |
905 | on this mode (and loses the blinking attribute) at startup. */ | |
f9d2fdc4 | 906 | if (fg == FACE_TTY_DEFAULT_COLOR || fg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 | 907 | fg = FRAME_FOREGROUND_PIXEL (sf); |
f9d2fdc4 | 908 | else if (fg == FACE_TTY_DEFAULT_BG_COLOR) |
3b620731 EZ |
909 | fg = FRAME_BACKGROUND_PIXEL (sf); |
910 | if (bg == FACE_TTY_DEFAULT_COLOR || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
911 | bg = FRAME_BACKGROUND_PIXEL (sf); | |
f9d2fdc4 | 912 | else if (bg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 EZ |
913 | bg = FRAME_FOREGROUND_PIXEL (sf); |
914 | ||
915 | /* Make sure highlighted lines really stand out, come what may. */ | |
abcce93a | 916 | if (fp->tty_reverse_p && (fg == dflt_fg && bg == dflt_bg)) |
3b620731 EZ |
917 | { |
918 | unsigned long tem = fg; | |
919 | ||
920 | fg = bg; | |
921 | bg = tem; | |
922 | } | |
76648534 EZ |
923 | /* If the user requested inverse video, obey. */ |
924 | if (inverse_video) | |
925 | { | |
926 | unsigned long tem2 = fg; | |
927 | ||
928 | fg = bg; | |
929 | bg = tem2; | |
930 | } | |
c77f6f1b | 931 | if (termscript) |
abcce93a MB |
932 | fprintf (termscript, "<FACE %d: %d/%d[FG:%d/BG:%d]>", face, |
933 | fp->foreground, fp->background, fg, bg); | |
c77f6f1b EZ |
934 | if (fg >= 0 && fg < 16) |
935 | { | |
936 | ScreenAttrib &= 0xf0; | |
937 | ScreenAttrib |= fg; | |
938 | } | |
939 | if (bg >= 0 && bg < 16) | |
940 | { | |
941 | ScreenAttrib &= 0x0f; | |
942 | ScreenAttrib |= ((bg & 0x0f) << 4); | |
943 | } | |
f32d4091 KS |
944 | } |
945 | ||
aa9ce936 EZ |
946 | Lisp_Object Vdos_unsupported_char_glyph; |
947 | ||
71f65669 | 948 | static void |
c77f6f1b | 949 | IT_write_glyphs (struct glyph *str, int str_len) |
f32d4091 | 950 | { |
aa9ce936 EZ |
951 | unsigned char *screen_buf, *screen_bp, *screen_buf_end, *bp; |
952 | int unsupported_face = FAST_GLYPH_FACE (Vdos_unsupported_char_glyph); | |
953 | unsigned unsupported_char= FAST_GLYPH_CHAR (Vdos_unsupported_char_glyph); | |
039274cf | 954 | int offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 EZ |
955 | register int sl = str_len; |
956 | register int tlen = GLYPH_TABLE_LENGTH; | |
957 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
958 | ||
e023fb27 EZ |
959 | /* If terminal_coding does any conversion, use it, otherwise use |
960 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
961 | because it always returns 1 if terminal_coding.src_multibyte is 1. */ | |
962 | struct coding_system *coding = | |
963 | (terminal_coding.common_flags & CODING_REQUIRE_ENCODING_MASK | |
964 | ? &terminal_coding | |
965 | : &safe_terminal_coding); | |
2d764c78 | 966 | struct frame *sf; |
87485d6f | 967 | |
52d38ab2 EZ |
968 | /* Do we need to consider conversion of unibyte characters to |
969 | multibyte? */ | |
970 | int convert_unibyte_characters | |
e16bf494 AI |
971 | = (NILP (current_buffer->enable_multibyte_characters) |
972 | && unibyte_display_via_language_environment); | |
52d38ab2 | 973 | |
648648a9 KH |
974 | unsigned char conversion_buffer[256]; |
975 | int conversion_buffer_size = sizeof conversion_buffer; | |
976 | ||
3b620731 | 977 | if (str_len <= 0) return; |
56e19ec4 | 978 | |
aa9ce936 EZ |
979 | screen_buf = screen_bp = alloca (str_len * 2); |
980 | screen_buf_end = screen_buf + str_len * 2; | |
2d764c78 | 981 | sf = SELECTED_FRAME(); |
e30aee93 EZ |
982 | |
983 | /* Since faces get cached and uncached behind our back, we can't | |
984 | rely on their indices in the cache being consistent across | |
985 | invocations. So always reset the screen face to the default | |
986 | face of the frame, before writing glyphs, and let the glyphs | |
987 | set the right face if it's different from the default. */ | |
988 | IT_set_face (DEFAULT_FACE_ID); | |
56e19ec4 | 989 | |
aa9ce936 EZ |
990 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
991 | the tail. */ | |
992 | terminal_coding.mode &= ~CODING_MODE_LAST_BLOCK; | |
993 | while (sl) | |
994 | { | |
c77f6f1b | 995 | int cf, chlen, enclen; |
3b620731 | 996 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *buf; |
c77f6f1b | 997 | unsigned ch; |
aa9ce936 EZ |
998 | |
999 | /* Glyphs with GLYPH_MASK_PADDING bit set are actually there | |
1000 | only for the redisplay code to know how many columns does | |
1001 | this character occupy on the screen. Skip padding glyphs. */ | |
c77f6f1b | 1002 | if (CHAR_GLYPH_PADDING_P (*str)) |
aa9ce936 EZ |
1003 | { |
1004 | str++; | |
1005 | sl--; | |
1006 | } | |
1007 | else | |
1008 | { | |
04ee4f45 EZ |
1009 | register GLYPH g = GLYPH_FROM_CHAR_GLYPH (*str); |
1010 | int glyph_not_in_table = 0; | |
1011 | ||
78555fbe EZ |
1012 | /* If g is negative, it means we have a multibyte character |
1013 | in *str. That's what GLYPH_FROM_CHAR_GLYPH returns for | |
1014 | multibyte characters. */ | |
04ee4f45 EZ |
1015 | if (g < 0 || g >= tlen) |
1016 | { | |
1017 | /* This glyph doesn't have an entry in Vglyph_table. */ | |
1018 | ch = str->u.ch; | |
1019 | glyph_not_in_table = 1; | |
1020 | } | |
1021 | else | |
1022 | { | |
1023 | /* This glyph has an entry in Vglyph_table, so process | |
1024 | any aliases before testing for simpleness. */ | |
1025 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); | |
1026 | ch = FAST_GLYPH_CHAR (g); | |
1027 | } | |
1028 | ||
aa9ce936 | 1029 | /* Convert the character code to multibyte, if they |
04ee4f45 EZ |
1030 | requested display via language environment. We only want |
1031 | to convert unibyte characters to multibyte in unibyte | |
1032 | buffers! Otherwise, the 8-bit value in CH came from the | |
1033 | display table set up to display foreign characters. */ | |
52d38ab2 | 1034 | if (SINGLE_BYTE_CHAR_P (ch) && convert_unibyte_characters |
f0dd4c35 EZ |
1035 | && (ch >= 0240 |
1036 | || (ch >= 0200 && !NILP (Vnonascii_translation_table)))) | |
aa9ce936 EZ |
1037 | ch = unibyte_char_to_multibyte (ch); |
1038 | ||
1039 | /* Invalid characters are displayed with a special glyph. */ | |
04ee4f45 | 1040 | if (! CHAR_VALID_P (ch, 0)) |
aa9ce936 EZ |
1041 | { |
1042 | g = !NILP (Vdos_unsupported_char_glyph) | |
1043 | ? Vdos_unsupported_char_glyph | |
2d764c78 | 1044 | : MAKE_GLYPH (sf, '\177', GLYPH_FACE (sf, g)); |
aa9ce936 EZ |
1045 | ch = FAST_GLYPH_CHAR (g); |
1046 | } | |
aa9ce936 EZ |
1047 | |
1048 | /* If the face of this glyph is different from the current | |
1049 | screen face, update the screen attribute byte. */ | |
78555fbe | 1050 | cf = str->face_id; |
aa9ce936 EZ |
1051 | if (cf != screen_face) |
1052 | IT_set_face (cf); /* handles invalid faces gracefully */ | |
1053 | ||
04ee4f45 | 1054 | if (glyph_not_in_table || GLYPH_SIMPLE_P (tbase, tlen, g)) |
3b620731 EZ |
1055 | { |
1056 | /* We generate the multi-byte form of CH in WORKBUF. */ | |
1057 | chlen = CHAR_STRING (ch, workbuf); | |
1058 | buf = workbuf; | |
1059 | } | |
aa9ce936 EZ |
1060 | else |
1061 | { | |
1062 | /* We have a string in Vglyph_table. */ | |
1063 | chlen = GLYPH_LENGTH (tbase, g); | |
1064 | buf = GLYPH_STRING (tbase, g); | |
1065 | } | |
1066 | ||
c77f6f1b | 1067 | /* If the character is not multibyte, don't bother converting it. */ |
aa9ce936 EZ |
1068 | if (chlen == 1) |
1069 | { | |
1070 | *conversion_buffer = (unsigned char)ch; | |
1071 | chlen = 0; | |
1072 | enclen = 1; | |
1073 | } | |
1074 | else | |
1075 | { | |
55a17202 | 1076 | coding->src_multibyte = 1; |
aa9ce936 EZ |
1077 | encode_coding (coding, buf, conversion_buffer, chlen, |
1078 | conversion_buffer_size); | |
1079 | chlen -= coding->consumed; | |
1080 | enclen = coding->produced; | |
1081 | ||
1082 | /* Replace glyph codes that cannot be converted by | |
1083 | terminal_coding with Vdos_unsupported_char_glyph. */ | |
1084 | if (*conversion_buffer == '?') | |
1085 | { | |
5e30eaa2 | 1086 | unsigned char *cbp = conversion_buffer; |
aa9ce936 EZ |
1087 | |
1088 | while (cbp < conversion_buffer + enclen && *cbp == '?') | |
1089 | *cbp++ = unsupported_char; | |
1090 | if (unsupported_face != screen_face) | |
1091 | IT_set_face (unsupported_face); | |
1092 | } | |
1093 | } | |
1094 | ||
1095 | if (enclen + chlen > screen_buf_end - screen_bp) | |
1096 | { | |
1097 | /* The allocated buffer for screen writes is too small. | |
1098 | Flush it and loop again without incrementing STR, so | |
1099 | that the next loop will begin with the same glyph. */ | |
1100 | int nbytes = screen_bp - screen_buf; | |
1101 | ||
1102 | mouse_off_maybe (); | |
1103 | dosmemput (screen_buf, nbytes, (int)ScreenPrimary + offset); | |
1104 | if (screen_virtual_segment) | |
1105 | dosv_refresh_virtual_screen (offset, nbytes / 2); | |
1106 | new_pos_X += nbytes / 2; | |
1107 | offset += nbytes; | |
1108 | ||
1109 | /* Prepare to reuse the same buffer again. */ | |
1110 | screen_bp = screen_buf; | |
1111 | } | |
1112 | else | |
1113 | { | |
1114 | /* There's enough place in the allocated buffer to add | |
1115 | the encoding of this glyph. */ | |
1116 | ||
1117 | /* First, copy the encoded bytes. */ | |
1118 | for (bp = conversion_buffer; enclen--; bp++) | |
1119 | { | |
1120 | *screen_bp++ = (unsigned char)*bp; | |
1121 | *screen_bp++ = ScreenAttrib; | |
1122 | if (termscript) | |
1123 | fputc (*bp, termscript); | |
1124 | } | |
1125 | ||
1126 | /* Now copy the bytes not consumed by the encoding. */ | |
1127 | if (chlen > 0) | |
1128 | { | |
1129 | buf += coding->consumed; | |
1130 | while (chlen--) | |
1131 | { | |
1132 | if (termscript) | |
1133 | fputc (*buf, termscript); | |
1134 | *screen_bp++ = (unsigned char)*buf++; | |
1135 | *screen_bp++ = ScreenAttrib; | |
1136 | } | |
1137 | } | |
1138 | ||
1139 | /* Update STR and its remaining length. */ | |
1140 | str++; | |
1141 | sl--; | |
1142 | } | |
1143 | } | |
aee81730 RS |
1144 | } |
1145 | ||
aa9ce936 | 1146 | /* Dump whatever is left in the screen buffer. */ |
f32d4091 | 1147 | mouse_off_maybe (); |
aa9ce936 | 1148 | dosmemput (screen_buf, screen_bp - screen_buf, (int)ScreenPrimary + offset); |
039274cf | 1149 | if (screen_virtual_segment) |
aa9ce936 EZ |
1150 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); |
1151 | new_pos_X += (screen_bp - screen_buf) / 2; | |
1152 | ||
1153 | /* We may have to output some codes to terminate the writing. */ | |
1154 | if (CODING_REQUIRE_FLUSHING (coding)) | |
1155 | { | |
1156 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
1157 | encode_coding (coding, "", conversion_buffer, 0, conversion_buffer_size); | |
1158 | if (coding->produced > 0) | |
1159 | { | |
241424da | 1160 | screen_buf = alloca (coding->produced * 2); |
aa9ce936 EZ |
1161 | for (screen_bp = screen_buf, bp = conversion_buffer; |
1162 | coding->produced--; bp++) | |
1163 | { | |
1164 | *screen_bp++ = (unsigned char)*bp; | |
1165 | *screen_bp++ = ScreenAttrib; | |
1166 | if (termscript) | |
1167 | fputc (*bp, termscript); | |
1168 | } | |
1169 | offset += screen_bp - screen_buf; | |
1170 | mouse_off_maybe (); | |
1171 | dosmemput (screen_buf, screen_bp - screen_buf, | |
1172 | (int)ScreenPrimary + offset); | |
1173 | if (screen_virtual_segment) | |
1174 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); | |
1175 | new_pos_X += (screen_bp - screen_buf) / 2; | |
1176 | } | |
1177 | } | |
f32d4091 | 1178 | } |
aee81730 | 1179 | |
41ad069b EZ |
1180 | /************************************************************************ |
1181 | Mouse Highlight (and friends..) | |
1182 | ************************************************************************/ | |
1183 | ||
ee8ceff8 | 1184 | /* Last window where we saw the mouse. Used by mouse-autoselect-window. */ |
9005a471 EZ |
1185 | static Lisp_Object last_mouse_window; |
1186 | ||
41ad069b EZ |
1187 | static int mouse_preempted = 0; /* non-zero when XMenu gobbles mouse events */ |
1188 | ||
1189 | /* Set the mouse pointer shape according to whether it is in the | |
1190 | area where the mouse highlight is in effect. */ | |
1191 | static void | |
1192 | IT_set_mouse_pointer (int mode) | |
1193 | { | |
1194 | /* A no-op for now. DOS text-mode mouse pointer doesn't offer too | |
1195 | many possibilities to change its shape, and the available | |
1196 | functionality pretty much sucks (e.g., almost every reasonable | |
1197 | shape will conceal the character it is on). Since the color of | |
1198 | the pointer changes in the highlighted area, it is not clear to | |
1199 | me whether anything else is required, anyway. */ | |
1200 | } | |
1201 | ||
1202 | /* Display the active region described by mouse_face_* | |
1203 | in its mouse-face if HL > 0, in its normal face if HL = 0. */ | |
1204 | static void | |
1205 | show_mouse_face (struct display_info *dpyinfo, int hl) | |
1206 | { | |
1207 | struct window *w = XWINDOW (dpyinfo->mouse_face_window); | |
1208 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
1209 | int i; | |
1210 | struct face *fp; | |
1211 | ||
56e19ec4 | 1212 | |
41ad069b EZ |
1213 | /* If window is in the process of being destroyed, don't bother |
1214 | doing anything. */ | |
1215 | if (w->current_matrix == NULL) | |
1216 | goto set_cursor_shape; | |
1217 | ||
1218 | /* Recognize when we are called to operate on rows that don't exist | |
1219 | anymore. This can happen when a window is split. */ | |
1220 | if (dpyinfo->mouse_face_end_row >= w->current_matrix->nrows) | |
1221 | goto set_cursor_shape; | |
1222 | ||
1223 | /* There's no sense to do anything if the mouse face isn't realized. */ | |
1224 | if (hl > 0) | |
1225 | { | |
abf10ed7 KS |
1226 | if (dpyinfo->mouse_face_hidden) |
1227 | goto set_cursor_shape; | |
1228 | ||
41ad069b EZ |
1229 | fp = FACE_FROM_ID (SELECTED_FRAME(), dpyinfo->mouse_face_face_id); |
1230 | if (!fp) | |
1231 | goto set_cursor_shape; | |
1232 | } | |
1233 | ||
1234 | /* Note that mouse_face_beg_row etc. are window relative. */ | |
1235 | for (i = dpyinfo->mouse_face_beg_row; | |
1236 | i <= dpyinfo->mouse_face_end_row; | |
1237 | i++) | |
1238 | { | |
1239 | int start_hpos, end_hpos; | |
1240 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, i); | |
1241 | ||
1242 | /* Don't do anything if row doesn't have valid contents. */ | |
1243 | if (!row->enabled_p) | |
1244 | continue; | |
1245 | ||
1246 | /* For all but the first row, the highlight starts at column 0. */ | |
1247 | if (i == dpyinfo->mouse_face_beg_row) | |
1248 | start_hpos = dpyinfo->mouse_face_beg_col; | |
1249 | else | |
1250 | start_hpos = 0; | |
1251 | ||
1252 | if (i == dpyinfo->mouse_face_end_row) | |
1253 | end_hpos = dpyinfo->mouse_face_end_col; | |
1254 | else | |
1255 | end_hpos = row->used[TEXT_AREA]; | |
1256 | ||
1257 | if (end_hpos <= start_hpos) | |
1258 | continue; | |
48c14970 EZ |
1259 | /* Record that some glyphs of this row are displayed in |
1260 | mouse-face. */ | |
1261 | row->mouse_face_p = hl > 0; | |
41ad069b EZ |
1262 | if (hl > 0) |
1263 | { | |
c655f6fd KS |
1264 | int vpos = row->y + WINDOW_TOP_EDGE_Y (w); |
1265 | int kstart = start_hpos + WINDOW_LEFT_EDGE_X (w); | |
41ad069b EZ |
1266 | int nglyphs = end_hpos - start_hpos; |
1267 | int offset = ScreenPrimary + 2*(vpos*screen_size_X + kstart) + 1; | |
1268 | int start_offset = offset; | |
1269 | ||
1270 | if (termscript) | |
1271 | fprintf (termscript, "\n<MH+ %d-%d:%d>", | |
1272 | kstart, kstart + nglyphs - 1, vpos); | |
1273 | ||
1274 | mouse_off (); | |
1275 | IT_set_face (dpyinfo->mouse_face_face_id); | |
1276 | /* Since we are going to change only the _colors_ of the | |
1277 | displayed text, there's no need to go through all the | |
1278 | pain of generating and encoding the text from the glyphs. | |
1279 | Instead, we simply poke the attribute byte of each | |
1280 | affected position in video memory with the colors | |
1281 | computed by IT_set_face! */ | |
1282 | _farsetsel (_dos_ds); | |
1283 | while (nglyphs--) | |
1284 | { | |
1285 | _farnspokeb (offset, ScreenAttrib); | |
1286 | offset += 2; | |
1287 | } | |
1288 | if (screen_virtual_segment) | |
1289 | dosv_refresh_virtual_screen (start_offset, end_hpos - start_hpos); | |
1290 | mouse_on (); | |
1291 | } | |
1292 | else | |
1293 | { | |
1294 | /* We are removing a previously-drawn mouse highlight. The | |
1295 | safest way to do so is to redraw the glyphs anew, since | |
1296 | all kinds of faces and display tables could have changed | |
1297 | behind our back. */ | |
1298 | int nglyphs = end_hpos - start_hpos; | |
1299 | int save_x = new_pos_X, save_y = new_pos_Y; | |
1300 | ||
1301 | if (end_hpos >= row->used[TEXT_AREA]) | |
1302 | nglyphs = row->used[TEXT_AREA] - start_hpos; | |
1303 | ||
1304 | /* IT_write_glyphs writes at cursor position, so we need to | |
1305 | temporarily move cursor coordinates to the beginning of | |
1306 | the highlight region. */ | |
c655f6fd KS |
1307 | new_pos_X = start_hpos + WINDOW_LEFT_EDGE_X (w); |
1308 | new_pos_Y = row->y + WINDOW_TOP_EDGE_Y (w); | |
41ad069b EZ |
1309 | |
1310 | if (termscript) | |
1311 | fprintf (termscript, "<MH- %d-%d:%d>", | |
1312 | new_pos_X, new_pos_X + nglyphs - 1, new_pos_Y); | |
1313 | IT_write_glyphs (row->glyphs[TEXT_AREA] + start_hpos, nglyphs); | |
1314 | if (termscript) | |
1315 | fputs ("\n", termscript); | |
1316 | new_pos_X = save_x; | |
1317 | new_pos_Y = save_y; | |
1318 | } | |
1319 | } | |
1320 | ||
1321 | set_cursor_shape: | |
41ad069b EZ |
1322 | /* Change the mouse pointer shape. */ |
1323 | IT_set_mouse_pointer (hl); | |
1324 | } | |
1325 | ||
1326 | /* Clear out the mouse-highlighted active region. | |
1327 | Redraw it un-highlighted first. */ | |
1328 | static void | |
1329 | clear_mouse_face (struct display_info *dpyinfo) | |
1330 | { | |
1331 | if (! NILP (dpyinfo->mouse_face_window)) | |
1332 | show_mouse_face (dpyinfo, 0); | |
1333 | ||
1334 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
1335 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
1336 | dpyinfo->mouse_face_window = Qnil; | |
1337 | } | |
1338 | ||
1339 | /* Find the glyph matrix position of buffer position POS in window W. | |
1340 | *HPOS and *VPOS are set to the positions found. W's current glyphs | |
1341 | must be up to date. If POS is above window start return (0, 0). | |
1342 | If POS is after end of W, return end of last line in W. */ | |
1343 | static int | |
1344 | fast_find_position (struct window *w, int pos, int *hpos, int *vpos) | |
1345 | { | |
56e19ec4 | 1346 | int i, lastcol, line_start_position, maybe_next_line_p = 0; |
41ad069b | 1347 | int yb = window_text_bottom_y (w); |
56e19ec4 | 1348 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, 0), *best_row = row; |
41ad069b EZ |
1349 | |
1350 | while (row->y < yb) | |
1351 | { | |
1352 | if (row->used[TEXT_AREA]) | |
1353 | line_start_position = row->glyphs[TEXT_AREA]->charpos; | |
1354 | else | |
1355 | line_start_position = 0; | |
1356 | ||
1357 | if (line_start_position > pos) | |
1358 | break; | |
1359 | /* If the position sought is the end of the buffer, | |
1360 | don't include the blank lines at the bottom of the window. */ | |
1361 | else if (line_start_position == pos | |
1362 | && pos == BUF_ZV (XBUFFER (w->buffer))) | |
1363 | { | |
1364 | maybe_next_line_p = 1; | |
1365 | break; | |
1366 | } | |
1367 | else if (line_start_position > 0) | |
1368 | best_row = row; | |
440ffd67 EZ |
1369 | |
1370 | /* Don't overstep the last matrix row, lest we get into the | |
1371 | never-never land... */ | |
1372 | if (row->y + 1 >= yb) | |
1373 | break; | |
56e19ec4 | 1374 | |
41ad069b EZ |
1375 | ++row; |
1376 | } | |
56e19ec4 | 1377 | |
41ad069b EZ |
1378 | /* Find the right column within BEST_ROW. */ |
1379 | lastcol = 0; | |
1380 | row = best_row; | |
1381 | for (i = 0; i < row->used[TEXT_AREA]; i++) | |
1382 | { | |
1383 | struct glyph *glyph = row->glyphs[TEXT_AREA] + i; | |
1384 | int charpos; | |
1385 | ||
1386 | charpos = glyph->charpos; | |
1387 | if (charpos == pos) | |
1388 | { | |
1389 | *hpos = i; | |
1390 | *vpos = row->y; | |
1391 | return 1; | |
1392 | } | |
1393 | else if (charpos > pos) | |
1394 | break; | |
1395 | else if (charpos > 0) | |
1396 | lastcol = i; | |
1397 | } | |
1398 | ||
1399 | /* If we're looking for the end of the buffer, | |
1400 | and we didn't find it in the line we scanned, | |
1401 | use the start of the following line. */ | |
1402 | if (maybe_next_line_p) | |
1403 | { | |
1404 | ++row; | |
1405 | lastcol = 0; | |
1406 | } | |
1407 | ||
1408 | *vpos = row->y; | |
1409 | *hpos = lastcol + 1; | |
1410 | return 0; | |
1411 | } | |
1412 | ||
1413 | /* Take proper action when mouse has moved to the mode or top line of | |
1414 | window W, x-position X. MODE_LINE_P non-zero means mouse is on the | |
1415 | mode line. X is relative to the start of the text display area of | |
377df9e2 | 1416 | W, so the width of fringes and scroll bars must be subtracted |
41ad069b EZ |
1417 | to get a position relative to the start of the mode line. */ |
1418 | static void | |
1419 | IT_note_mode_line_highlight (struct window *w, int x, int mode_line_p) | |
1420 | { | |
1421 | struct frame *f = XFRAME (w->frame); | |
1422 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
1423 | struct glyph_row *row; | |
1424 | ||
1425 | if (mode_line_p) | |
1426 | row = MATRIX_MODE_LINE_ROW (w->current_matrix); | |
1427 | else | |
1428 | row = MATRIX_HEADER_LINE_ROW (w->current_matrix); | |
56e19ec4 | 1429 | |
41ad069b EZ |
1430 | if (row->enabled_p) |
1431 | { | |
1432 | extern Lisp_Object Qhelp_echo; | |
1433 | struct glyph *glyph, *end; | |
1434 | Lisp_Object help, map; | |
56e19ec4 | 1435 | |
41ad069b | 1436 | /* Find the glyph under X. */ |
c655f6fd KS |
1437 | glyph = (row->glyphs[TEXT_AREA] |
1438 | + x | |
5ff50615 | 1439 | /* in case someone implements scroll bars some day... */ |
c655f6fd | 1440 | - WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH (w)); |
41ad069b EZ |
1441 | end = glyph + row->used[TEXT_AREA]; |
1442 | if (glyph < end | |
1443 | && STRINGP (glyph->object) | |
d5db4077 | 1444 | && STRING_INTERVALS (glyph->object) |
41ad069b | 1445 | && glyph->charpos >= 0 |
d5db4077 | 1446 | && glyph->charpos < SCHARS (glyph->object)) |
41ad069b EZ |
1447 | { |
1448 | /* If we're on a string with `help-echo' text property, | |
1449 | arrange for the help to be displayed. This is done by | |
1450 | setting the global variable help_echo to the help string. */ | |
1451 | help = Fget_text_property (make_number (glyph->charpos), | |
1452 | Qhelp_echo, glyph->object); | |
b7e80413 | 1453 | if (!NILP (help)) |
48c14970 | 1454 | { |
02d4b97d | 1455 | help_echo_string = help; |
48c14970 EZ |
1456 | XSETWINDOW (help_echo_window, w); |
1457 | help_echo_object = glyph->object; | |
1458 | help_echo_pos = glyph->charpos; | |
1459 | } | |
41ad069b EZ |
1460 | } |
1461 | } | |
1462 | } | |
1463 | ||
1464 | /* Take proper action when the mouse has moved to position X, Y on | |
1465 | frame F as regards highlighting characters that have mouse-face | |
1466 | properties. Also de-highlighting chars where the mouse was before. | |
1467 | X and Y can be negative or out of range. */ | |
1468 | static void | |
1469 | IT_note_mouse_highlight (struct frame *f, int x, int y) | |
1470 | { | |
1471 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
02d4b97d | 1472 | enum window_part part = ON_NOTHING; |
41ad069b EZ |
1473 | Lisp_Object window; |
1474 | struct window *w; | |
1475 | ||
1476 | /* When a menu is active, don't highlight because this looks odd. */ | |
1477 | if (mouse_preempted) | |
1478 | return; | |
1479 | ||
abf10ed7 | 1480 | if (NILP (Vmouse_highlight) |
515d0d0e | 1481 | || !f->glyphs_initialized_p) |
41ad069b EZ |
1482 | return; |
1483 | ||
1484 | dpyinfo->mouse_face_mouse_x = x; | |
1485 | dpyinfo->mouse_face_mouse_y = y; | |
1486 | dpyinfo->mouse_face_mouse_frame = f; | |
1487 | ||
1488 | if (dpyinfo->mouse_face_defer) | |
1489 | return; | |
1490 | ||
1491 | if (gc_in_progress) | |
1492 | { | |
1493 | dpyinfo->mouse_face_deferred_gc = 1; | |
1494 | return; | |
1495 | } | |
1496 | ||
1497 | /* Which window is that in? */ | |
c655f6fd | 1498 | window = window_from_coordinates (f, x, y, &part, &x, &y, 0); |
41ad069b EZ |
1499 | |
1500 | /* If we were displaying active text in another window, clear that. */ | |
1501 | if (! EQ (window, dpyinfo->mouse_face_window)) | |
1502 | clear_mouse_face (dpyinfo); | |
1503 | ||
1504 | /* Not on a window -> return. */ | |
1505 | if (!WINDOWP (window)) | |
1506 | return; | |
1507 | ||
1508 | /* Convert to window-relative coordinates. */ | |
1509 | w = XWINDOW (window); | |
41ad069b | 1510 | |
02d4b97d | 1511 | if (part == ON_MODE_LINE || part == ON_HEADER_LINE) |
41ad069b EZ |
1512 | { |
1513 | /* Mouse is on the mode or top line. */ | |
02d4b97d | 1514 | IT_note_mode_line_highlight (w, x, part == ON_MODE_LINE); |
41ad069b EZ |
1515 | return; |
1516 | } | |
c655f6fd KS |
1517 | |
1518 | IT_set_mouse_pointer (0); | |
41ad069b EZ |
1519 | |
1520 | /* Are we in a window whose display is up to date? | |
1521 | And verify the buffer's text has not changed. */ | |
02d4b97d | 1522 | if (part == ON_TEXT |
41ad069b EZ |
1523 | && EQ (w->window_end_valid, w->buffer) |
1524 | && XFASTINT (w->last_modified) == BUF_MODIFF (XBUFFER (w->buffer)) | |
1525 | && (XFASTINT (w->last_overlay_modified) | |
1526 | == BUF_OVERLAY_MODIFF (XBUFFER (w->buffer)))) | |
1527 | { | |
56e19ec4 | 1528 | int pos, i, nrows = w->current_matrix->nrows; |
41ad069b EZ |
1529 | struct glyph_row *row; |
1530 | struct glyph *glyph; | |
1531 | ||
1532 | /* Find the glyph under X/Y. */ | |
1533 | glyph = NULL; | |
440ffd67 | 1534 | if (y >= 0 && y < nrows) |
41ad069b EZ |
1535 | { |
1536 | row = MATRIX_ROW (w->current_matrix, y); | |
440ffd67 EZ |
1537 | /* Give up if some row before the one we are looking for is |
1538 | not enabled. */ | |
1539 | for (i = 0; i <= y; i++) | |
1540 | if (!MATRIX_ROW (w->current_matrix, i)->enabled_p) | |
1541 | break; | |
1542 | if (i > y /* all rows upto and including the one at Y are enabled */ | |
41ad069b EZ |
1543 | && row->displays_text_p |
1544 | && x < window_box_width (w, TEXT_AREA)) | |
1545 | { | |
1546 | glyph = row->glyphs[TEXT_AREA]; | |
1547 | if (x >= row->used[TEXT_AREA]) | |
1548 | glyph = NULL; | |
1549 | else | |
1550 | { | |
1551 | glyph += x; | |
1552 | if (!BUFFERP (glyph->object)) | |
1553 | glyph = NULL; | |
1554 | } | |
1555 | } | |
1556 | } | |
1557 | ||
1558 | /* Clear mouse face if X/Y not over text. */ | |
1559 | if (glyph == NULL) | |
1560 | { | |
1561 | clear_mouse_face (dpyinfo); | |
1562 | return; | |
1563 | } | |
1564 | ||
1565 | if (!BUFFERP (glyph->object)) | |
1566 | abort (); | |
1567 | pos = glyph->charpos; | |
1568 | ||
1569 | /* Check for mouse-face and help-echo. */ | |
1570 | { | |
1571 | extern Lisp_Object Qmouse_face; | |
56e19ec4 EZ |
1572 | Lisp_Object mouse_face, overlay, position, *overlay_vec; |
1573 | int len, noverlays, obegv, ozv;; | |
41ad069b | 1574 | struct buffer *obuf; |
41ad069b EZ |
1575 | |
1576 | /* If we get an out-of-range value, return now; avoid an error. */ | |
1577 | if (pos > BUF_Z (XBUFFER (w->buffer))) | |
1578 | return; | |
1579 | ||
1580 | /* Make the window's buffer temporarily current for | |
1581 | overlays_at and compute_char_face. */ | |
1582 | obuf = current_buffer; | |
1583 | current_buffer = XBUFFER (w->buffer); | |
1584 | obegv = BEGV; | |
1585 | ozv = ZV; | |
1586 | BEGV = BEG; | |
1587 | ZV = Z; | |
1588 | ||
1589 | /* Is this char mouse-active or does it have help-echo? */ | |
1590 | XSETINT (position, pos); | |
1591 | ||
1592 | /* Put all the overlays we want in a vector in overlay_vec. | |
1593 | Store the length in len. If there are more than 10, make | |
1594 | enough space for all, and try again. */ | |
1595 | len = 10; | |
1596 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
99cd7364 | 1597 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, NULL, NULL, 0); |
41ad069b EZ |
1598 | if (noverlays > len) |
1599 | { | |
1600 | len = noverlays; | |
1601 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
99cd7364 EZ |
1602 | noverlays = overlays_at (pos, |
1603 | 0, &overlay_vec, &len, NULL, NULL, 0); | |
41ad069b | 1604 | } |
56e19ec4 | 1605 | |
f0a4139c | 1606 | /* Sort overlays into increasing priority order. */ |
41ad069b EZ |
1607 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
1608 | ||
1609 | /* Check mouse-face highlighting. */ | |
1610 | if (! (EQ (window, dpyinfo->mouse_face_window) | |
1611 | && y >= dpyinfo->mouse_face_beg_row | |
1612 | && y <= dpyinfo->mouse_face_end_row | |
1613 | && (y > dpyinfo->mouse_face_beg_row | |
1614 | || x >= dpyinfo->mouse_face_beg_col) | |
1615 | && (y < dpyinfo->mouse_face_end_row | |
1616 | || x < dpyinfo->mouse_face_end_col | |
1617 | || dpyinfo->mouse_face_past_end))) | |
1618 | { | |
1619 | /* Clear the display of the old active region, if any. */ | |
1620 | clear_mouse_face (dpyinfo); | |
1621 | ||
1622 | /* Find highest priority overlay that has a mouse-face prop. */ | |
1623 | overlay = Qnil; | |
f0a4139c | 1624 | for (i = noverlays - 1; i >= 0; --i) |
41ad069b EZ |
1625 | { |
1626 | mouse_face = Foverlay_get (overlay_vec[i], Qmouse_face); | |
1627 | if (!NILP (mouse_face)) | |
1628 | { | |
1629 | overlay = overlay_vec[i]; | |
1630 | break; | |
1631 | } | |
1632 | } | |
1633 | ||
1634 | /* If no overlay applies, get a text property. */ | |
1635 | if (NILP (overlay)) | |
1636 | mouse_face = Fget_text_property (position, Qmouse_face, | |
1637 | w->buffer); | |
1638 | ||
1639 | /* Handle the overlay case. */ | |
1640 | if (! NILP (overlay)) | |
1641 | { | |
1642 | /* Find the range of text around this char that | |
1643 | should be active. */ | |
1644 | Lisp_Object before, after; | |
1645 | int ignore; | |
1646 | ||
1647 | before = Foverlay_start (overlay); | |
1648 | after = Foverlay_end (overlay); | |
1649 | /* Record this as the current active region. */ | |
1650 | fast_find_position (w, XFASTINT (before), | |
1651 | &dpyinfo->mouse_face_beg_col, | |
1652 | &dpyinfo->mouse_face_beg_row); | |
1653 | dpyinfo->mouse_face_past_end | |
1654 | = !fast_find_position (w, XFASTINT (after), | |
1655 | &dpyinfo->mouse_face_end_col, | |
1656 | &dpyinfo->mouse_face_end_row); | |
1657 | dpyinfo->mouse_face_window = window; | |
1658 | dpyinfo->mouse_face_face_id | |
1659 | = face_at_buffer_position (w, pos, 0, 0, | |
0d6239f1 KS |
1660 | &ignore, pos + 1, |
1661 | !dpyinfo->mouse_face_hidden); | |
41ad069b EZ |
1662 | |
1663 | /* Display it as active. */ | |
1664 | show_mouse_face (dpyinfo, 1); | |
1665 | } | |
1666 | /* Handle the text property case. */ | |
1667 | else if (! NILP (mouse_face)) | |
1668 | { | |
1669 | /* Find the range of text around this char that | |
1670 | should be active. */ | |
1671 | Lisp_Object before, after, beginning, end; | |
1672 | int ignore; | |
1673 | ||
1674 | beginning = Fmarker_position (w->start); | |
1675 | XSETINT (end, (BUF_Z (XBUFFER (w->buffer)) | |
1676 | - XFASTINT (w->window_end_pos))); | |
1677 | before | |
1678 | = Fprevious_single_property_change (make_number (pos + 1), | |
1679 | Qmouse_face, | |
1680 | w->buffer, beginning); | |
1681 | after | |
1682 | = Fnext_single_property_change (position, Qmouse_face, | |
1683 | w->buffer, end); | |
1684 | /* Record this as the current active region. */ | |
1685 | fast_find_position (w, XFASTINT (before), | |
1686 | &dpyinfo->mouse_face_beg_col, | |
1687 | &dpyinfo->mouse_face_beg_row); | |
1688 | dpyinfo->mouse_face_past_end | |
1689 | = !fast_find_position (w, XFASTINT (after), | |
1690 | &dpyinfo->mouse_face_end_col, | |
1691 | &dpyinfo->mouse_face_end_row); | |
1692 | dpyinfo->mouse_face_window = window; | |
1693 | dpyinfo->mouse_face_face_id | |
1694 | = face_at_buffer_position (w, pos, 0, 0, | |
0d6239f1 KS |
1695 | &ignore, pos + 1, |
1696 | !dpyinfo->mouse_face_hidden); | |
41ad069b EZ |
1697 | |
1698 | /* Display it as active. */ | |
1699 | show_mouse_face (dpyinfo, 1); | |
1700 | } | |
1701 | } | |
1702 | ||
1703 | /* Look for a `help-echo' property. */ | |
1704 | { | |
1705 | Lisp_Object help; | |
1706 | extern Lisp_Object Qhelp_echo; | |
1707 | ||
1708 | /* Check overlays first. */ | |
1709 | help = Qnil; | |
f0a4139c EZ |
1710 | for (i = noverlays - 1; i >= 0 && NILP (help); --i) |
1711 | { | |
1712 | overlay = overlay_vec[i]; | |
1713 | help = Foverlay_get (overlay, Qhelp_echo); | |
1714 | } | |
56e19ec4 | 1715 | |
b7e80413 | 1716 | if (!NILP (help)) |
48c14970 | 1717 | { |
02d4b97d | 1718 | help_echo_string = help; |
48c14970 | 1719 | help_echo_window = window; |
f0a4139c | 1720 | help_echo_object = overlay; |
48c14970 EZ |
1721 | help_echo_pos = pos; |
1722 | } | |
1723 | /* Try text properties. */ | |
1724 | else if (NILP (help) | |
1725 | && ((STRINGP (glyph->object) | |
1726 | && glyph->charpos >= 0 | |
d5db4077 | 1727 | && glyph->charpos < SCHARS (glyph->object)) |
48c14970 EZ |
1728 | || (BUFFERP (glyph->object) |
1729 | && glyph->charpos >= BEGV | |
1730 | && glyph->charpos < ZV))) | |
1731 | { | |
1732 | help = Fget_text_property (make_number (glyph->charpos), | |
1733 | Qhelp_echo, glyph->object); | |
1734 | if (!NILP (help)) | |
1735 | { | |
02d4b97d | 1736 | help_echo_string = help; |
48c14970 EZ |
1737 | help_echo_window = window; |
1738 | help_echo_object = glyph->object; | |
1739 | help_echo_pos = glyph->charpos; | |
1740 | } | |
1741 | } | |
41ad069b | 1742 | } |
56e19ec4 | 1743 | |
41ad069b EZ |
1744 | BEGV = obegv; |
1745 | ZV = ozv; | |
1746 | current_buffer = obuf; | |
1747 | } | |
1748 | } | |
1749 | } | |
1750 | ||
71f65669 EZ |
1751 | static void |
1752 | IT_clear_end_of_line (int first_unused) | |
f32d4091 KS |
1753 | { |
1754 | char *spaces, *sp; | |
56e19ec4 | 1755 | int i, j, offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 EZ |
1756 | extern int fatal_error_in_progress; |
1757 | ||
2d764c78 | 1758 | if (new_pos_X >= first_unused || fatal_error_in_progress) |
aa9ce936 | 1759 | return; |
f32d4091 KS |
1760 | |
1761 | IT_set_face (0); | |
2d764c78 | 1762 | i = (j = first_unused - new_pos_X) * 2; |
e25d9653 EZ |
1763 | if (termscript) |
1764 | fprintf (termscript, "<CLR:EOL[%d..%d)>", new_pos_X, first_unused); | |
f32d4091 | 1765 | spaces = sp = alloca (i); |
56e19ec4 | 1766 | |
f32d4091 | 1767 | while (--j >= 0) |
aee81730 | 1768 | { |
f32d4091 KS |
1769 | *sp++ = ' '; |
1770 | *sp++ = ScreenAttrib; | |
aee81730 RS |
1771 | } |
1772 | ||
f32d4091 | 1773 | mouse_off_maybe (); |
039274cf EZ |
1774 | dosmemput (spaces, i, (int)ScreenPrimary + offset); |
1775 | if (screen_virtual_segment) | |
1776 | dosv_refresh_virtual_screen (offset, i / 2); | |
2d764c78 EZ |
1777 | |
1778 | /* clear_end_of_line_raw on term.c leaves the cursor at first_unused. | |
1779 | Let's follow their lead, in case someone relies on this. */ | |
1780 | new_pos_X = first_unused; | |
aee81730 RS |
1781 | } |
1782 | ||
71f65669 | 1783 | static void |
f32d4091 KS |
1784 | IT_clear_screen (void) |
1785 | { | |
1786 | if (termscript) | |
1787 | fprintf (termscript, "<CLR:SCR>"); | |
deece6f5 EZ |
1788 | /* We are sometimes called (from clear_garbaged_frames) when a new |
1789 | frame is being created, but its faces are not yet realized. In | |
1790 | such a case we cannot call IT_set_face, since it will fail to find | |
1791 | any valid faces and will abort. Instead, use the initial screen | |
1792 | colors; that should mimic what a Unix tty does, which simply clears | |
1793 | the screen with whatever default colors are in use. */ | |
1794 | if (FACE_FROM_ID (SELECTED_FRAME (), DEFAULT_FACE_ID) == NULL) | |
1795 | ScreenAttrib = (initial_screen_colors[0] << 4) | initial_screen_colors[1]; | |
1796 | else | |
1797 | IT_set_face (0); | |
f32d4091 KS |
1798 | mouse_off (); |
1799 | ScreenClear (); | |
039274cf EZ |
1800 | if (screen_virtual_segment) |
1801 | dosv_refresh_virtual_screen (0, screen_size); | |
f32d4091 KS |
1802 | new_pos_X = new_pos_Y = 0; |
1803 | } | |
1804 | ||
71f65669 | 1805 | static void |
f32d4091 KS |
1806 | IT_clear_to_end (void) |
1807 | { | |
1808 | if (termscript) | |
1809 | fprintf (termscript, "<CLR:EOS>"); | |
1810 | ||
1811 | while (new_pos_Y < screen_size_Y) { | |
1812 | new_pos_X = 0; | |
e25d9653 | 1813 | IT_clear_end_of_line (screen_size_X); |
f32d4091 KS |
1814 | new_pos_Y++; |
1815 | } | |
1816 | } | |
1817 | ||
71f65669 | 1818 | static void |
f32d4091 KS |
1819 | IT_cursor_to (int y, int x) |
1820 | { | |
1821 | if (termscript) | |
1822 | fprintf (termscript, "\n<XY=%dx%d>", x, y); | |
1823 | new_pos_X = x; | |
1824 | new_pos_Y = y; | |
1825 | } | |
1826 | ||
fc171623 KH |
1827 | static int cursor_cleared; |
1828 | ||
d1d5dc19 | 1829 | static void |
fc171623 KH |
1830 | IT_display_cursor (int on) |
1831 | { | |
1832 | if (on && cursor_cleared) | |
1833 | { | |
1834 | ScreenSetCursor (current_pos_Y, current_pos_X); | |
1835 | cursor_cleared = 0; | |
1836 | } | |
1837 | else if (!on && !cursor_cleared) | |
1838 | { | |
1839 | ScreenSetCursor (-1, -1); | |
1840 | cursor_cleared = 1; | |
1841 | } | |
1842 | } | |
1843 | ||
1844 | /* Emacs calls cursor-movement functions a lot when it updates the | |
1845 | display (probably a legacy of old terminals where you cannot | |
1846 | update a screen line without first moving the cursor there). | |
1847 | However, cursor movement is expensive on MSDOS (it calls a slow | |
1848 | BIOS function and requires 2 mode switches), while actual screen | |
1849 | updates access the video memory directly and don't depend on | |
1850 | cursor position. To avoid slowing down the redisplay, we cheat: | |
1851 | all functions that move the cursor only set internal variables | |
1852 | which record the cursor position, whereas the cursor is only | |
1853 | moved to its final position whenever screen update is complete. | |
1854 | ||
1855 | `IT_cmgoto' is called from the keyboard reading loop and when the | |
1856 | frame update is complete. This means that we are ready for user | |
1857 | input, so we update the cursor position to show where the point is, | |
1858 | and also make the mouse pointer visible. | |
1859 | ||
1860 | Special treatment is required when the cursor is in the echo area, | |
1861 | to put the cursor at the end of the text displayed there. */ | |
1862 | ||
71f65669 EZ |
1863 | static void |
1864 | IT_cmgoto (FRAME_PTR f) | |
fc171623 KH |
1865 | { |
1866 | /* Only set the cursor to where it should be if the display is | |
1867 | already in sync with the window contents. */ | |
2d764c78 EZ |
1868 | int update_cursor_pos = 1; /* MODIFF == unchanged_modified; */ |
1869 | ||
1870 | /* FIXME: This needs to be rewritten for the new redisplay, or | |
1871 | removed. */ | |
1872 | #if 0 | |
06da1de1 EZ |
1873 | static int previous_pos_X = -1; |
1874 | ||
2d764c78 EZ |
1875 | update_cursor_pos = 1; /* temporary!!! */ |
1876 | ||
06da1de1 EZ |
1877 | /* If the display is in sync, forget any previous knowledge about |
1878 | cursor position. This is primarily for unexpected events like | |
1879 | C-g in the minibuffer. */ | |
1880 | if (update_cursor_pos && previous_pos_X >= 0) | |
1881 | previous_pos_X = -1; | |
1882 | /* If we are in the echo area, put the cursor at the | |
1883 | end of the echo area message. */ | |
fc171623 | 1884 | if (!update_cursor_pos |
c655f6fd | 1885 | && WINDOW_TOP_EDGE_LINE (XWINDOW (FRAME_MINIBUF_WINDOW (f))) <= new_pos_Y) |
fc171623 | 1886 | { |
06da1de1 EZ |
1887 | int tem_X = current_pos_X, dummy; |
1888 | ||
1889 | if (echo_area_glyphs) | |
1890 | { | |
1891 | tem_X = echo_area_glyphs_length; | |
1892 | /* Save current cursor position, to be restored after the | |
1893 | echo area message is erased. Only remember one level | |
1894 | of previous cursor position. */ | |
1895 | if (previous_pos_X == -1) | |
1896 | ScreenGetCursor (&dummy, &previous_pos_X); | |
1897 | } | |
1898 | else if (previous_pos_X >= 0) | |
1899 | { | |
1900 | /* We wind up here after the echo area message is erased. | |
1901 | Restore the cursor position we remembered above. */ | |
1902 | tem_X = previous_pos_X; | |
1903 | previous_pos_X = -1; | |
1904 | } | |
9a599a60 | 1905 | |
06da1de1 | 1906 | if (current_pos_X != tem_X) |
9a599a60 EZ |
1907 | { |
1908 | new_pos_X = tem_X; | |
1909 | update_cursor_pos = 1; | |
1910 | } | |
fc171623 | 1911 | } |
2d764c78 | 1912 | #endif |
fc171623 KH |
1913 | |
1914 | if (update_cursor_pos | |
1915 | && (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y)) | |
1916 | { | |
1917 | ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X); | |
1918 | if (termscript) | |
1919 | fprintf (termscript, "\n<CURSOR:%dx%d>", current_pos_X, current_pos_Y); | |
1920 | } | |
1921 | ||
1922 | /* Maybe cursor is invisible, so make it visible. */ | |
1923 | IT_display_cursor (1); | |
1924 | ||
1925 | /* Mouse pointer should be always visible if we are waiting for | |
1926 | keyboard input. */ | |
1927 | if (!mouse_visible) | |
1928 | mouse_on (); | |
1929 | } | |
1930 | ||
71f65669 | 1931 | static void |
41ad069b | 1932 | IT_update_begin (struct frame *f) |
f32d4091 | 1933 | { |
41ad069b | 1934 | struct display_info *display_info = FRAME_X_DISPLAY_INFO (f); |
b9f80d41 | 1935 | struct frame *mouse_face_frame = display_info->mouse_face_mouse_frame; |
41ad069b EZ |
1936 | |
1937 | BLOCK_INPUT; | |
1938 | ||
b9f80d41 | 1939 | if (f && f == mouse_face_frame) |
41ad069b EZ |
1940 | { |
1941 | /* Don't do highlighting for mouse motion during the update. */ | |
1942 | display_info->mouse_face_defer = 1; | |
1943 | ||
1944 | /* If F needs to be redrawn, simply forget about any prior mouse | |
1945 | highlighting. */ | |
1946 | if (FRAME_GARBAGED_P (f)) | |
1947 | display_info->mouse_face_window = Qnil; | |
1948 | ||
1949 | /* Can we tell that this update does not affect the window | |
1950 | where the mouse highlight is? If so, no need to turn off. | |
48c14970 EZ |
1951 | Likewise, don't do anything if none of the enabled rows |
1952 | contains glyphs highlighted in mouse face. */ | |
8ccb9a54 EZ |
1953 | if (!NILP (display_info->mouse_face_window) |
1954 | && WINDOWP (display_info->mouse_face_window)) | |
41ad069b EZ |
1955 | { |
1956 | struct window *w = XWINDOW (display_info->mouse_face_window); | |
1957 | int i; | |
1958 | ||
8ccb9a54 EZ |
1959 | /* If the mouse highlight is in the window that was deleted |
1960 | (e.g., if it was popped by completion), clear highlight | |
1961 | unconditionally. */ | |
1962 | if (NILP (w->buffer)) | |
1963 | display_info->mouse_face_window = Qnil; | |
1964 | else | |
1965 | { | |
1966 | for (i = 0; i < w->desired_matrix->nrows; ++i) | |
48c14970 EZ |
1967 | if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i) |
1968 | && MATRIX_ROW (w->current_matrix, i)->mouse_face_p) | |
8ccb9a54 EZ |
1969 | break; |
1970 | } | |
41ad069b | 1971 | |
8ccb9a54 | 1972 | if (NILP (w->buffer) || i < w->desired_matrix->nrows) |
41ad069b EZ |
1973 | clear_mouse_face (display_info); |
1974 | } | |
1975 | } | |
b9f80d41 | 1976 | else if (mouse_face_frame && !FRAME_LIVE_P (mouse_face_frame)) |
41ad069b EZ |
1977 | { |
1978 | /* If the frame with mouse highlight was deleted, invalidate the | |
1979 | highlight info. */ | |
1980 | display_info->mouse_face_beg_row = display_info->mouse_face_beg_col = -1; | |
1981 | display_info->mouse_face_end_row = display_info->mouse_face_end_col = -1; | |
1982 | display_info->mouse_face_window = Qnil; | |
1983 | display_info->mouse_face_deferred_gc = 0; | |
1984 | display_info->mouse_face_mouse_frame = NULL; | |
1985 | } | |
1986 | ||
1987 | UNBLOCK_INPUT; | |
f32d4091 KS |
1988 | } |
1989 | ||
71f65669 | 1990 | static void |
41ad069b | 1991 | IT_update_end (struct frame *f) |
f32d4091 | 1992 | { |
41ad069b EZ |
1993 | FRAME_X_DISPLAY_INFO (f)->mouse_face_defer = 0; |
1994 | } | |
1995 | ||
8ba01a32 EZ |
1996 | Lisp_Object Qcursor_type; |
1997 | ||
41ad069b EZ |
1998 | static void |
1999 | IT_frame_up_to_date (struct frame *f) | |
2000 | { | |
2001 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
0c3cfc51 EZ |
2002 | Lisp_Object new_cursor, frame_desired_cursor; |
2003 | struct window *sw; | |
41ad069b EZ |
2004 | |
2005 | if (dpyinfo->mouse_face_deferred_gc | |
b9f80d41 | 2006 | || (f && f == dpyinfo->mouse_face_mouse_frame)) |
41ad069b EZ |
2007 | { |
2008 | BLOCK_INPUT; | |
2009 | if (dpyinfo->mouse_face_mouse_frame) | |
2010 | IT_note_mouse_highlight (dpyinfo->mouse_face_mouse_frame, | |
2011 | dpyinfo->mouse_face_mouse_x, | |
2012 | dpyinfo->mouse_face_mouse_y); | |
2013 | dpyinfo->mouse_face_deferred_gc = 0; | |
2014 | UNBLOCK_INPUT; | |
2015 | } | |
2016 | ||
0c3cfc51 EZ |
2017 | /* Set the cursor type to whatever they wanted. In a minibuffer |
2018 | window, we want the cursor to appear only if we are reading input | |
2019 | from this window, and we want the cursor to be taken from the | |
2020 | frame parameters. For the selected window, we use either its | |
2021 | buffer-local value or the value from the frame parameters if the | |
2022 | buffer doesn't define its local value for the cursor type. */ | |
2023 | sw = XWINDOW (f->selected_window); | |
2024 | frame_desired_cursor = Fcdr (Fassq (Qcursor_type, f->param_alist)); | |
2025 | if (cursor_in_echo_area | |
2026 | && FRAME_HAS_MINIBUF_P (f) | |
2027 | && EQ (FRAME_MINIBUF_WINDOW (f), echo_area_window) | |
2028 | && sw == XWINDOW (echo_area_window)) | |
2029 | new_cursor = frame_desired_cursor; | |
2030 | else | |
2031 | { | |
2032 | struct buffer *b = XBUFFER (sw->buffer); | |
2033 | ||
2034 | if (EQ (b->cursor_type, Qt)) | |
2035 | new_cursor = frame_desired_cursor; | |
2036 | else if (NILP (b->cursor_type)) /* nil means no cursor */ | |
2037 | new_cursor = Fcons (Qbar, make_number (0)); | |
2038 | else | |
2039 | new_cursor = b->cursor_type; | |
2040 | } | |
2041 | ||
2042 | IT_set_cursor_type (f, new_cursor); | |
8ba01a32 | 2043 | |
41ad069b | 2044 | IT_cmgoto (f); /* position cursor when update is done */ |
f32d4091 | 2045 | } |
1b94449f | 2046 | |
c77f6f1b EZ |
2047 | /* Copy LEN glyphs displayed on a single line whose vertical position |
2048 | is YPOS, beginning at horizontal position XFROM to horizontal | |
2049 | position XTO, by moving blocks in the video memory. Used by | |
2050 | functions that insert and delete glyphs. */ | |
2051 | static void | |
2052 | IT_copy_glyphs (int xfrom, int xto, size_t len, int ypos) | |
2053 | { | |
2054 | /* The offsets of source and destination relative to the | |
2055 | conventional memorty selector. */ | |
2056 | int from = 2 * (xfrom + screen_size_X * ypos) + ScreenPrimary; | |
2057 | int to = 2 * (xto + screen_size_X * ypos) + ScreenPrimary; | |
2058 | ||
2059 | if (from == to || len <= 0) | |
2060 | return; | |
2061 | ||
2062 | _farsetsel (_dos_ds); | |
2063 | ||
2064 | /* The source and destination might overlap, so we need to move | |
2065 | glyphs non-destructively. */ | |
2066 | if (from > to) | |
2067 | { | |
2068 | for ( ; len; from += 2, to += 2, len--) | |
2069 | _farnspokew (to, _farnspeekw (from)); | |
2070 | } | |
2071 | else | |
2072 | { | |
2073 | from += (len - 1) * 2; | |
2074 | to += (len - 1) * 2; | |
2075 | for ( ; len; from -= 2, to -= 2, len--) | |
2076 | _farnspokew (to, _farnspeekw (from)); | |
2077 | } | |
2078 | if (screen_virtual_segment) | |
2079 | dosv_refresh_virtual_screen (ypos * screen_size_X * 2, screen_size_X); | |
2080 | } | |
2081 | ||
2082 | /* Insert and delete glyphs. */ | |
aa9ce936 EZ |
2083 | static void |
2084 | IT_insert_glyphs (start, len) | |
c77f6f1b | 2085 | register struct glyph *start; |
aa9ce936 EZ |
2086 | register int len; |
2087 | { | |
c77f6f1b EZ |
2088 | int shift_by_width = screen_size_X - (new_pos_X + len); |
2089 | ||
2090 | /* Shift right the glyphs from the nominal cursor position to the | |
2091 | end of this line. */ | |
2092 | IT_copy_glyphs (new_pos_X, new_pos_X + len, shift_by_width, new_pos_Y); | |
2093 | ||
2094 | /* Now write the glyphs to be inserted. */ | |
2095 | IT_write_glyphs (start, len); | |
aa9ce936 EZ |
2096 | } |
2097 | ||
2098 | static void | |
2099 | IT_delete_glyphs (n) | |
2100 | register int n; | |
2101 | { | |
2102 | abort (); | |
2103 | } | |
2104 | ||
211c7152 | 2105 | /* set-window-configuration on window.c needs this. */ |
3bb1f22f RS |
2106 | void |
2107 | x_set_menu_bar_lines (f, value, oldval) | |
2108 | struct frame *f; | |
2109 | Lisp_Object value, oldval; | |
2110 | { | |
211c7152 EZ |
2111 | set_menu_bar_lines (f, value, oldval); |
2112 | } | |
3bb1f22f | 2113 | |
984f5aaa | 2114 | /* This was copied from xfaces.c */ |
3bb1f22f | 2115 | |
984f5aaa EZ |
2116 | extern Lisp_Object Qbackground_color; |
2117 | extern Lisp_Object Qforeground_color; | |
8ba01a32 | 2118 | Lisp_Object Qreverse; |
211c7152 | 2119 | extern Lisp_Object Qtitle; |
3bb1f22f | 2120 | |
48ffe371 RS |
2121 | /* IT_set_terminal_modes is called when emacs is started, |
2122 | resumed, and whenever the screen is redrawn! */ | |
f32d4091 | 2123 | |
71f65669 | 2124 | static void |
f32d4091 KS |
2125 | IT_set_terminal_modes (void) |
2126 | { | |
aee81730 | 2127 | if (termscript) |
f32d4091 | 2128 | fprintf (termscript, "\n<SET_TERM>"); |
f32d4091 KS |
2129 | |
2130 | screen_size_X = ScreenCols (); | |
2131 | screen_size_Y = ScreenRows (); | |
2132 | screen_size = screen_size_X * screen_size_Y; | |
56e19ec4 | 2133 | |
f32d4091 KS |
2134 | new_pos_X = new_pos_Y = 0; |
2135 | current_pos_X = current_pos_Y = -1; | |
2136 | ||
2137 | if (term_setup_done) | |
2138 | return; | |
2139 | term_setup_done = 1; | |
56e19ec4 | 2140 | |
f32d4091 KS |
2141 | startup_screen_size_X = screen_size_X; |
2142 | startup_screen_size_Y = screen_size_Y; | |
c9adab25 | 2143 | startup_screen_attrib = ScreenAttrib; |
f32d4091 | 2144 | |
039274cf EZ |
2145 | #if __DJGPP__ > 1 |
2146 | /* Is DOS/V (or any other RSIS software which relocates | |
2147 | the screen) installed? */ | |
2148 | { | |
2149 | unsigned short es_value; | |
2150 | __dpmi_regs regs; | |
2151 | ||
2152 | regs.h.ah = 0xfe; /* get relocated screen address */ | |
2153 | if (ScreenPrimary == 0xb0000UL || ScreenPrimary == 0xb8000UL) | |
2154 | regs.x.es = (ScreenPrimary >> 4) & 0xffff; | |
2155 | else if (screen_old_address) /* already switched to Japanese mode once */ | |
2156 | regs.x.es = (screen_old_address >> 4) & 0xffff; | |
2157 | else | |
2158 | regs.x.es = ScreenMode () == 7 ? 0xb000 : 0xb800; | |
2159 | regs.x.di = 0; | |
2160 | es_value = regs.x.es; | |
2161 | __dpmi_int (0x10, ®s); | |
2162 | ||
d1d5dc19 | 2163 | if (regs.x.es != es_value) |
039274cf | 2164 | { |
d1d5dc19 EZ |
2165 | /* screen_old_address is only set if ScreenPrimary does NOT |
2166 | already point to the relocated buffer address returned by | |
2167 | the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets | |
2168 | ScreenPrimary to that address at startup under DOS/V. */ | |
2169 | if (regs.x.es != (ScreenPrimary >> 4) & 0xffff) | |
2170 | screen_old_address = ScreenPrimary; | |
039274cf EZ |
2171 | screen_virtual_segment = regs.x.es; |
2172 | screen_virtual_offset = regs.x.di; | |
2173 | ScreenPrimary = (screen_virtual_segment << 4) + screen_virtual_offset; | |
2174 | } | |
2175 | } | |
2176 | #endif /* __DJGPP__ > 1 */ | |
2177 | ||
f32d4091 KS |
2178 | ScreenGetCursor (&startup_pos_Y, &startup_pos_X); |
2179 | ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2)); | |
2180 | ||
2181 | if (termscript) | |
c9adab25 | 2182 | fprintf (termscript, "<SCREEN SAVED (dimensions=%dx%d)>\n", |
039274cf | 2183 | screen_size_X, screen_size_Y); |
76ac1508 RS |
2184 | |
2185 | bright_bg (); | |
f32d4091 KS |
2186 | } |
2187 | ||
48ffe371 RS |
2188 | /* IT_reset_terminal_modes is called when emacs is |
2189 | suspended or killed. */ | |
f32d4091 | 2190 | |
71f65669 | 2191 | static void |
f32d4091 KS |
2192 | IT_reset_terminal_modes (void) |
2193 | { | |
c9adab25 KH |
2194 | int display_row_start = (int) ScreenPrimary; |
2195 | int saved_row_len = startup_screen_size_X * 2; | |
56e19ec4 | 2196 | int update_row_len = ScreenCols () * 2, current_rows = ScreenRows (); |
c9adab25 KH |
2197 | int to_next_row = update_row_len; |
2198 | unsigned char *saved_row = startup_screen_buffer; | |
56e19ec4 | 2199 | int cursor_pos_X = ScreenCols () - 1, cursor_pos_Y = ScreenRows () - 1; |
c9adab25 | 2200 | |
f32d4091 | 2201 | if (termscript) |
5063b150 | 2202 | fprintf (termscript, "\n<RESET_TERM>"); |
f32d4091 | 2203 | |
f32d4091 KS |
2204 | if (!term_setup_done) |
2205 | return; | |
56e19ec4 | 2206 | |
c9adab25 | 2207 | mouse_off (); |
b36701cc RS |
2208 | |
2209 | /* Leave the video system in the same state as we found it, | |
2210 | as far as the blink/bright-background bit is concerned. */ | |
2211 | maybe_enable_blinking (); | |
06b1ea13 | 2212 | |
c9adab25 KH |
2213 | /* We have a situation here. |
2214 | We cannot just do ScreenUpdate(startup_screen_buffer) because | |
2215 | the luser could have changed screen dimensions inside Emacs | |
2216 | and failed (or didn't want) to restore them before killing | |
2217 | Emacs. ScreenUpdate() uses the *current* screen dimensions and | |
2218 | thus will happily use memory outside what was allocated for | |
2219 | `startup_screen_buffer'. | |
2220 | Thus we only restore as much as the current screen dimensions | |
2221 | can hold, and clear the rest (if the saved screen is smaller than | |
2222 | the current) with the color attribute saved at startup. The cursor | |
2223 | is also restored within the visible dimensions. */ | |
2224 | ||
2225 | ScreenAttrib = startup_screen_attrib; | |
c9adab25 | 2226 | |
06b1ea13 EZ |
2227 | /* Don't restore the screen if we are exiting less than 2 seconds |
2228 | after startup: we might be crashing, and the screen might show | |
2229 | some vital clues to what's wrong. */ | |
2230 | if (clock () - startup_time >= 2*CLOCKS_PER_SEC) | |
c9adab25 | 2231 | { |
06b1ea13 | 2232 | ScreenClear (); |
039274cf | 2233 | if (screen_virtual_segment) |
06b1ea13 EZ |
2234 | dosv_refresh_virtual_screen (0, screen_size); |
2235 | ||
2236 | if (update_row_len > saved_row_len) | |
2237 | update_row_len = saved_row_len; | |
2238 | if (current_rows > startup_screen_size_Y) | |
2239 | current_rows = startup_screen_size_Y; | |
2240 | ||
2241 | if (termscript) | |
2242 | fprintf (termscript, "<SCREEN RESTORED (dimensions=%dx%d)>\n", | |
2243 | update_row_len / 2, current_rows); | |
2244 | ||
2245 | while (current_rows--) | |
2246 | { | |
2247 | dosmemput (saved_row, update_row_len, display_row_start); | |
2248 | if (screen_virtual_segment) | |
2249 | dosv_refresh_virtual_screen (display_row_start - ScreenPrimary, | |
2250 | update_row_len / 2); | |
2251 | saved_row += saved_row_len; | |
2252 | display_row_start += to_next_row; | |
2253 | } | |
c9adab25 KH |
2254 | } |
2255 | if (startup_pos_X < cursor_pos_X) | |
2256 | cursor_pos_X = startup_pos_X; | |
2257 | if (startup_pos_Y < cursor_pos_Y) | |
2258 | cursor_pos_Y = startup_pos_Y; | |
2259 | ||
2260 | ScreenSetCursor (cursor_pos_Y, cursor_pos_X); | |
2261 | xfree (startup_screen_buffer); | |
f32d4091 KS |
2262 | |
2263 | term_setup_done = 0; | |
2264 | } | |
2265 | ||
71f65669 EZ |
2266 | static void |
2267 | IT_set_terminal_window (int foo) | |
f32d4091 KS |
2268 | { |
2269 | } | |
2270 | ||
2d764c78 EZ |
2271 | /* Remember the screen colors of the curent frame, to serve as the |
2272 | default colors for newly-created frames. */ | |
2d764c78 EZ |
2273 | DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors, |
2274 | Smsdos_remember_default_colors, 1, 1, 0, | |
70da46c3 | 2275 | doc: /* Remember the screen colors of the current frame. */) |
2d764c78 EZ |
2276 | (frame) |
2277 | Lisp_Object frame; | |
2278 | { | |
2d764c78 EZ |
2279 | struct frame *f; |
2280 | ||
b7826503 | 2281 | CHECK_FRAME (frame); |
2d764c78 | 2282 | f= XFRAME (frame); |
2d764c78 | 2283 | |
ff12cd1d EZ |
2284 | /* This function is called after applying default-frame-alist to the |
2285 | initial frame. At that time, if reverse-colors option was | |
2286 | specified in default-frame-alist, it was already applied, and | |
2287 | frame colors are reversed. We need to account for that. */ | |
2288 | if (EQ (Fcdr (Fassq (Qreverse, f->param_alist)), Qt)) | |
2289 | { | |
2290 | initial_screen_colors[0] = FRAME_BACKGROUND_PIXEL (f); | |
2291 | initial_screen_colors[1] = FRAME_FOREGROUND_PIXEL (f); | |
2292 | } | |
2293 | else | |
2294 | { | |
2295 | initial_screen_colors[0] = FRAME_FOREGROUND_PIXEL (f); | |
2296 | initial_screen_colors[1] = FRAME_BACKGROUND_PIXEL (f); | |
2297 | } | |
2d764c78 EZ |
2298 | } |
2299 | ||
f32d4091 | 2300 | void |
3bb1f22f | 2301 | IT_set_frame_parameters (f, alist) |
c77f6f1b | 2302 | struct frame *f; |
f32d4091 KS |
2303 | Lisp_Object alist; |
2304 | { | |
2305 | Lisp_Object tail; | |
56e19ec4 | 2306 | int i, j, length = XINT (Flength (alist)); |
db722735 RS |
2307 | Lisp_Object *parms |
2308 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2309 | Lisp_Object *values | |
2310 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2d764c78 | 2311 | /* Do we have to reverse the foreground and background colors? */ |
8ba01a32 | 2312 | int reverse = EQ (Fcdr (Fassq (Qreverse, f->param_alist)), Qt); |
56e19ec4 | 2313 | int need_to_reverse, was_reverse = reverse; |
2d764c78 | 2314 | int redraw = 0, fg_set = 0, bg_set = 0; |
56e19ec4 | 2315 | unsigned long orig_fg, orig_bg; |
546701f5 | 2316 | Lisp_Object frame_bg, frame_fg; |
53704a07 | 2317 | extern Lisp_Object Qdefault, QCforeground, QCbackground; |
2d764c78 EZ |
2318 | |
2319 | /* If we are creating a new frame, begin with the original screen colors | |
2320 | used for the initial frame. */ | |
2321 | if (alist == Vdefault_frame_alist | |
2322 | && initial_screen_colors[0] != -1 && initial_screen_colors[1] != -1) | |
2323 | { | |
2324 | FRAME_FOREGROUND_PIXEL (f) = initial_screen_colors[0]; | |
2325 | FRAME_BACKGROUND_PIXEL (f) = initial_screen_colors[1]; | |
2326 | } | |
2327 | orig_fg = FRAME_FOREGROUND_PIXEL (f); | |
2328 | orig_bg = FRAME_BACKGROUND_PIXEL (f); | |
546701f5 EZ |
2329 | frame_fg = Fcdr (Fassq (Qforeground_color, f->param_alist)); |
2330 | frame_bg = Fcdr (Fassq (Qbackground_color, f->param_alist)); | |
2331 | /* frame_fg and frame_bg could be nil if, for example, | |
2332 | f->param_alist is nil, e.g. if we are called from | |
2333 | Fmake_terminal_frame. */ | |
2334 | if (NILP (frame_fg)) | |
2335 | frame_fg = build_string (unspecified_fg); | |
2336 | if (NILP (frame_bg)) | |
2337 | frame_bg = build_string (unspecified_bg); | |
db722735 RS |
2338 | |
2339 | /* Extract parm names and values into those vectors. */ | |
2340 | i = 0; | |
f32d4091 KS |
2341 | for (tail = alist; CONSP (tail); tail = Fcdr (tail)) |
2342 | { | |
db722735 | 2343 | Lisp_Object elt; |
f32d4091 KS |
2344 | |
2345 | elt = Fcar (tail); | |
db722735 | 2346 | parms[i] = Fcar (elt); |
b7826503 | 2347 | CHECK_SYMBOL (parms[i]); |
db722735 RS |
2348 | values[i] = Fcdr (elt); |
2349 | i++; | |
2350 | } | |
2351 | ||
2d764c78 | 2352 | j = i; |
db722735 | 2353 | |
2d764c78 EZ |
2354 | for (i = 0; i < j; i++) |
2355 | { | |
1e21fe48 EZ |
2356 | Lisp_Object prop, val; |
2357 | ||
2358 | prop = parms[i]; | |
2359 | val = values[i]; | |
2d764c78 | 2360 | |
8ba01a32 | 2361 | if (EQ (prop, Qreverse)) |
2d764c78 EZ |
2362 | reverse = EQ (val, Qt); |
2363 | } | |
546701f5 EZ |
2364 | |
2365 | need_to_reverse = reverse && !was_reverse; | |
2366 | if (termscript && need_to_reverse) | |
2d764c78 EZ |
2367 | fprintf (termscript, "<INVERSE-VIDEO>\n"); |
2368 | ||
2369 | /* Now process the alist elements in reverse of specified order. */ | |
db722735 RS |
2370 | for (i--; i >= 0; i--) |
2371 | { | |
56e19ec4 | 2372 | Lisp_Object prop, val, frame; |
1e21fe48 EZ |
2373 | |
2374 | prop = parms[i]; | |
2375 | val = values[i]; | |
f32d4091 | 2376 | |
4e825084 | 2377 | if (EQ (prop, Qforeground_color)) |
f32d4091 | 2378 | { |
546701f5 | 2379 | unsigned long new_color = load_color (f, NULL, val, need_to_reverse |
2d764c78 EZ |
2380 | ? LFACE_BACKGROUND_INDEX |
2381 | : LFACE_FOREGROUND_INDEX); | |
3b620731 EZ |
2382 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2383 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2384 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2385 | { |
546701f5 | 2386 | FRAME_FOREGROUND_PIXEL (f) = new_color; |
1e21fe48 EZ |
2387 | /* Make sure the foreground of the default face for this |
2388 | frame is changed as well. */ | |
2389 | XSETFRAME (frame, f); | |
546701f5 | 2390 | if (need_to_reverse) |
1e21fe48 | 2391 | { |
1e21fe48 EZ |
2392 | Finternal_set_lisp_face_attribute (Qdefault, QCbackground, |
2393 | val, frame); | |
546701f5 | 2394 | prop = Qbackground_color; |
ff12cd1d | 2395 | bg_set = 1; |
1e21fe48 | 2396 | } |
2d764c78 | 2397 | else |
1e21fe48 | 2398 | { |
1e21fe48 EZ |
2399 | Finternal_set_lisp_face_attribute (Qdefault, QCforeground, |
2400 | val, frame); | |
ff12cd1d | 2401 | fg_set = 1; |
1e21fe48 | 2402 | } |
f32d4091 | 2403 | redraw = 1; |
76ac1508 | 2404 | if (termscript) |
a7cf9151 | 2405 | fprintf (termscript, "<FGCOLOR %lu>\n", new_color); |
f32d4091 KS |
2406 | } |
2407 | } | |
4e825084 | 2408 | else if (EQ (prop, Qbackground_color)) |
f32d4091 | 2409 | { |
546701f5 | 2410 | unsigned long new_color = load_color (f, NULL, val, need_to_reverse |
2d764c78 EZ |
2411 | ? LFACE_FOREGROUND_INDEX |
2412 | : LFACE_BACKGROUND_INDEX); | |
3b620731 EZ |
2413 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2414 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2415 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2416 | { |
546701f5 | 2417 | FRAME_BACKGROUND_PIXEL (f) = new_color; |
1e21fe48 EZ |
2418 | /* Make sure the background of the default face for this |
2419 | frame is changed as well. */ | |
2420 | XSETFRAME (frame, f); | |
546701f5 | 2421 | if (need_to_reverse) |
1e21fe48 | 2422 | { |
1e21fe48 EZ |
2423 | Finternal_set_lisp_face_attribute (Qdefault, QCforeground, |
2424 | val, frame); | |
546701f5 | 2425 | prop = Qforeground_color; |
ff12cd1d | 2426 | fg_set = 1; |
1e21fe48 | 2427 | } |
2d764c78 | 2428 | else |
1e21fe48 | 2429 | { |
1e21fe48 EZ |
2430 | Finternal_set_lisp_face_attribute (Qdefault, QCbackground, |
2431 | val, frame); | |
ff12cd1d | 2432 | bg_set = 1; |
1e21fe48 | 2433 | } |
f32d4091 | 2434 | redraw = 1; |
76ac1508 | 2435 | if (termscript) |
a7cf9151 | 2436 | fprintf (termscript, "<BGCOLOR %lu>\n", new_color); |
f32d4091 KS |
2437 | } |
2438 | } | |
211c7152 EZ |
2439 | else if (EQ (prop, Qtitle)) |
2440 | { | |
2441 | x_set_title (f, val); | |
2442 | if (termscript) | |
d5db4077 | 2443 | fprintf (termscript, "<TITLE: %s>\n", SDATA (val)); |
211c7152 | 2444 | } |
8ba01a32 EZ |
2445 | else if (EQ (prop, Qcursor_type)) |
2446 | { | |
2447 | IT_set_cursor_type (f, val); | |
2448 | if (termscript) | |
2449 | fprintf (termscript, "<CTYPE: %s>\n", | |
a0738471 EZ |
2450 | EQ (val, Qbar) || EQ (val, Qhbar) |
2451 | || CONSP (val) && (EQ (XCAR (val), Qbar) | |
2452 | || EQ (XCAR (val), Qhbar)) | |
8ba01a32 EZ |
2453 | ? "bar" : "box"); |
2454 | } | |
db722735 | 2455 | store_frame_param (f, prop, val); |
2d764c78 | 2456 | } |
db722735 | 2457 | |
2d764c78 EZ |
2458 | /* If they specified "reverse", but not the colors, we need to swap |
2459 | the current frame colors. */ | |
546701f5 | 2460 | if (need_to_reverse) |
2d764c78 | 2461 | { |
1e21fe48 EZ |
2462 | Lisp_Object frame; |
2463 | ||
2d764c78 EZ |
2464 | if (!fg_set) |
2465 | { | |
1e21fe48 | 2466 | XSETFRAME (frame, f); |
ff12cd1d EZ |
2467 | Finternal_set_lisp_face_attribute (Qdefault, QCforeground, |
2468 | tty_color_name (f, orig_bg), | |
53704a07 | 2469 | frame); |
2d764c78 EZ |
2470 | redraw = 1; |
2471 | } | |
2472 | if (!bg_set) | |
2473 | { | |
1e21fe48 | 2474 | XSETFRAME (frame, f); |
ff12cd1d EZ |
2475 | Finternal_set_lisp_face_attribute (Qdefault, QCbackground, |
2476 | tty_color_name (f, orig_fg), | |
53704a07 | 2477 | frame); |
2d764c78 EZ |
2478 | redraw = 1; |
2479 | } | |
f32d4091 KS |
2480 | } |
2481 | ||
2482 | if (redraw) | |
2483 | { | |
2d764c78 EZ |
2484 | face_change_count++; /* forces xdisp.c to recompute basic faces */ |
2485 | if (f == SELECTED_FRAME()) | |
3bb1f22f | 2486 | redraw_frame (f); |
f32d4091 KS |
2487 | } |
2488 | } | |
2489 | ||
a7cf9151 EZ |
2490 | extern void init_frame_faces (FRAME_PTR); |
2491 | ||
f32d4091 KS |
2492 | #endif /* !HAVE_X_WINDOWS */ |
2493 | ||
2494 | ||
48ffe371 RS |
2495 | /* Do we need the internal terminal? */ |
2496 | ||
f32d4091 KS |
2497 | void |
2498 | internal_terminal_init () | |
2499 | { | |
56e19ec4 | 2500 | char *term = getenv ("TERM"), *colors; |
2d764c78 | 2501 | struct frame *sf = SELECTED_FRAME(); |
f32d4091 KS |
2502 | |
2503 | #ifdef HAVE_X_WINDOWS | |
2504 | if (!inhibit_window_system) | |
2505 | return; | |
2506 | #endif | |
2507 | ||
2508 | internal_terminal | |
2509 | = (!noninteractive) && term && !strcmp (term, "internal"); | |
2510 | ||
2511 | if (getenv ("EMACSTEST")) | |
5063b150 | 2512 | termscript = fopen (getenv ("EMACSTEST"), "wt"); |
56e19ec4 | 2513 | |
f32d4091 KS |
2514 | #ifndef HAVE_X_WINDOWS |
2515 | if (!internal_terminal || inhibit_window_system) | |
2516 | { | |
2d764c78 | 2517 | sf->output_method = output_termcap; |
f32d4091 KS |
2518 | return; |
2519 | } | |
2520 | ||
2521 | Vwindow_system = intern ("pc"); | |
2522 | Vwindow_system_version = make_number (1); | |
2d764c78 | 2523 | sf->output_method = output_msdos_raw; |
039274cf EZ |
2524 | |
2525 | /* If Emacs was dumped on DOS/V machine, forget the stale VRAM address. */ | |
2526 | screen_old_address = 0; | |
2527 | ||
2d764c78 EZ |
2528 | /* Forget the stale screen colors as well. */ |
2529 | initial_screen_colors[0] = initial_screen_colors[1] = -1; | |
2530 | ||
f32d4091 KS |
2531 | bzero (&the_only_x_display, sizeof the_only_x_display); |
2532 | the_only_x_display.background_pixel = 7; /* White */ | |
2533 | the_only_x_display.foreground_pixel = 0; /* Black */ | |
76ac1508 | 2534 | bright_bg (); |
5063b150 | 2535 | colors = getenv ("EMACSCOLORS"); |
f32d4091 KS |
2536 | if (colors && strlen (colors) >= 2) |
2537 | { | |
76ac1508 RS |
2538 | /* The colors use 4 bits each (we enable bright background). */ |
2539 | if (isdigit (colors[0])) | |
2540 | colors[0] -= '0'; | |
2541 | else if (isxdigit (colors[0])) | |
2542 | colors[0] -= (isupper (colors[0]) ? 'A' : 'a') - 10; | |
1bd7b2c7 RS |
2543 | if (colors[0] >= 0 && colors[0] < 16) |
2544 | the_only_x_display.foreground_pixel = colors[0]; | |
76ac1508 RS |
2545 | if (isdigit (colors[1])) |
2546 | colors[1] -= '0'; | |
2547 | else if (isxdigit (colors[1])) | |
2548 | colors[1] -= (isupper (colors[1]) ? 'A' : 'a') - 10; | |
2549 | if (colors[1] >= 0 && colors[1] < 16) | |
1bd7b2c7 | 2550 | the_only_x_display.background_pixel = colors[1]; |
f32d4091 | 2551 | } |
64ec6a02 | 2552 | the_only_x_display.font = (XFontStruct *)1; /* must *not* be zero */ |
41ad069b EZ |
2553 | the_only_x_display.display_info.mouse_face_mouse_frame = NULL; |
2554 | the_only_x_display.display_info.mouse_face_deferred_gc = 0; | |
2555 | the_only_x_display.display_info.mouse_face_beg_row = | |
2556 | the_only_x_display.display_info.mouse_face_beg_col = -1; | |
2557 | the_only_x_display.display_info.mouse_face_end_row = | |
2558 | the_only_x_display.display_info.mouse_face_end_col = -1; | |
2559 | the_only_x_display.display_info.mouse_face_face_id = DEFAULT_FACE_ID; | |
2560 | the_only_x_display.display_info.mouse_face_window = Qnil; | |
2561 | the_only_x_display.display_info.mouse_face_mouse_x = | |
2562 | the_only_x_display.display_info.mouse_face_mouse_y = 0; | |
2563 | the_only_x_display.display_info.mouse_face_defer = 0; | |
abf10ed7 | 2564 | the_only_x_display.display_info.mouse_face_hidden = 0; |
f32d4091 | 2565 | |
2d764c78 | 2566 | init_frame_faces (sf); |
f32d4091 KS |
2567 | |
2568 | ring_bell_hook = IT_ring_bell; | |
aa9ce936 EZ |
2569 | insert_glyphs_hook = IT_insert_glyphs; |
2570 | delete_glyphs_hook = IT_delete_glyphs; | |
f32d4091 KS |
2571 | write_glyphs_hook = IT_write_glyphs; |
2572 | cursor_to_hook = raw_cursor_to_hook = IT_cursor_to; | |
2573 | clear_to_end_hook = IT_clear_to_end; | |
2574 | clear_end_of_line_hook = IT_clear_end_of_line; | |
2575 | clear_frame_hook = IT_clear_screen; | |
f32d4091 KS |
2576 | update_begin_hook = IT_update_begin; |
2577 | update_end_hook = IT_update_end; | |
41ad069b | 2578 | frame_up_to_date_hook = IT_frame_up_to_date; |
f32d4091 KS |
2579 | |
2580 | /* These hooks are called by term.c without being checked. */ | |
2581 | set_terminal_modes_hook = IT_set_terminal_modes; | |
2582 | reset_terminal_modes_hook = IT_reset_terminal_modes; | |
2583 | set_terminal_window_hook = IT_set_terminal_window; | |
c77f6f1b | 2584 | char_ins_del_ok = 0; |
f32d4091 KS |
2585 | #endif |
2586 | } | |
2587 | ||
2588 | dos_get_saved_screen (screen, rows, cols) | |
2589 | char **screen; | |
2590 | int *rows; | |
2591 | int *cols; | |
2592 | { | |
2593 | #ifndef HAVE_X_WINDOWS | |
2594 | *screen = startup_screen_buffer; | |
2595 | *cols = startup_screen_size_X; | |
2596 | *rows = startup_screen_size_Y; | |
039274cf | 2597 | return *screen != (char *)0; |
f32d4091 KS |
2598 | #else |
2599 | return 0; | |
56e19ec4 | 2600 | #endif |
f32d4091 | 2601 | } |
3bb1f22f RS |
2602 | |
2603 | #ifndef HAVE_X_WINDOWS | |
2604 | ||
2605 | /* We are not X, but we can emulate it well enough for our needs... */ | |
2606 | void | |
2607 | check_x (void) | |
2608 | { | |
2d764c78 EZ |
2609 | if (! FRAME_MSDOS_P (SELECTED_FRAME())) |
2610 | error ("Not running under a window system"); | |
3bb1f22f RS |
2611 | } |
2612 | ||
2613 | #endif | |
2614 | ||
5063b150 | 2615 | \f |
f32d4091 KS |
2616 | /* ----------------------- Keyboard control ---------------------- |
2617 | * | |
2618 | * Keymaps reflect the following keyboard layout: | |
2619 | * | |
2620 | * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS | |
2621 | * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41) | |
2622 | * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET | |
2623 | * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT | |
2624 | * SPACE | |
2625 | */ | |
2626 | ||
d1d5dc19 EZ |
2627 | #define Ignore 0x0000 |
2628 | #define Normal 0x0000 /* normal key - alt changes scan-code */ | |
2629 | #define FctKey 0x1000 /* func key if c == 0, else c */ | |
2630 | #define Special 0x2000 /* func key even if c != 0 */ | |
2631 | #define ModFct 0x3000 /* special if mod-keys, else 'c' */ | |
2632 | #define Map 0x4000 /* alt scan-code, map to unshift/shift key */ | |
2633 | #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */ | |
2634 | #define Grey 0x6000 /* Grey keypad key */ | |
2635 | ||
2636 | #define Alt 0x0100 /* alt scan-code */ | |
2637 | #define Ctrl 0x0200 /* ctrl scan-code */ | |
2638 | #define Shift 0x0400 /* shift scan-code */ | |
2639 | ||
f32d4091 KS |
2640 | static int extended_kbd; /* 101 (102) keyboard present. */ |
2641 | ||
d1d5dc19 EZ |
2642 | struct kbd_translate { |
2643 | unsigned char sc; | |
2644 | unsigned char ch; | |
2645 | unsigned short code; | |
2646 | }; | |
2647 | ||
f32d4091 KS |
2648 | struct dos_keyboard_map |
2649 | { | |
2650 | char *unshifted; | |
2651 | char *shifted; | |
2652 | char *alt_gr; | |
d1d5dc19 | 2653 | struct kbd_translate *translate_table; |
f32d4091 KS |
2654 | }; |
2655 | ||
2656 | ||
2657 | static struct dos_keyboard_map us_keyboard = { | |
2658 | /* 0 1 2 3 4 5 */ | |
2659 | /* 01234567890123456789012345678901234567890 12345678901234 */ | |
2660 | "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ", | |
2661 | /* 0123456789012345678901234567890123456789 012345678901234 */ | |
2662 | "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ", | |
d1d5dc19 EZ |
2663 | 0, /* no Alt-Gr key */ |
2664 | 0 /* no translate table */ | |
f32d4091 KS |
2665 | }; |
2666 | ||
2667 | static struct dos_keyboard_map fr_keyboard = { | |
2668 | /* 0 1 2 3 4 5 */ | |
2669 | /* 012 3456789012345678901234567890123456789012345678901234 */ | |
2670 |