Commit | Line | Data |
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c6a6499f | 1 | /* MS-DOS specific C utilities. -*- coding: raw-text -*- |
1bd62036 EZ |
2 | Copyright (C) 1993, 94, 95, 96, 97, 1999, 2000, 2001 |
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. */ |
1bd7b2c7 RS |
41 | #if __DJGPP__ >= 2 |
42 | #include <fcntl.h> | |
a7cf9151 | 43 | #include <io.h> /* for setmode */ |
fc171623 KH |
44 | #include <dpmi.h> /* for __dpmi_xxx stuff */ |
45 | #include <sys/farptr.h> /* for _farsetsel, _farnspokeb */ | |
d21e67b5 | 46 | #include <libc/dosio.h> /* for _USE_LFN */ |
a7cf9151 | 47 | #include <conio.h> /* for cputs */ |
1bd7b2c7 RS |
48 | #endif |
49 | ||
1b94449f RS |
50 | #include "msdos.h" |
51 | #include "systime.h" | |
52 | #include "termhooks.h" | |
aa9ce936 | 53 | #include "termchar.h" |
87485d6f | 54 | #include "dispextern.h" |
c77f6f1b | 55 | #include "dosfns.h" |
87485d6f | 56 | #include "termopts.h" |
aa9ce936 EZ |
57 | #include "charset.h" |
58 | #include "coding.h" | |
59 | #include "disptab.h" | |
1b94449f | 60 | #include "frame.h" |
87485d6f | 61 | #include "window.h" |
fc171623 KH |
62 | #include "buffer.h" |
63 | #include "commands.h" | |
41ad069b | 64 | #include "blockinput.h" |
97dd288b | 65 | #include "keyboard.h" |
1b94449f RS |
66 | #include <go32.h> |
67 | #include <pc.h> | |
68 | #include <ctype.h> | |
69 | /* #include <process.h> */ | |
70 | /* Damn that local process.h! Instead we can define P_WAIT ourselves. */ | |
71 | #define P_WAIT 1 | |
72 | ||
d21e67b5 RS |
73 | #ifndef _USE_LFN |
74 | #define _USE_LFN 0 | |
75 | #endif | |
76 | ||
b36701cc RS |
77 | #ifndef _dos_ds |
78 | #define _dos_ds _go32_info_block.selector_for_linear_memory | |
79 | #endif | |
80 | ||
1bd7b2c7 RS |
81 | #if __DJGPP__ > 1 |
82 | ||
8748735b | 83 | #include <signal.h> |
417a04bb | 84 | #include "syssignal.h" |
8748735b | 85 | |
1bd7b2c7 RS |
86 | #ifndef SYSTEM_MALLOC |
87 | ||
88 | #ifdef GNU_MALLOC | |
89 | ||
90 | /* If other `malloc' than ours is used, force our `sbrk' behave like | |
91 | Unix programs expect (resize memory blocks to keep them contiguous). | |
92 | If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory, | |
93 | because that's what `gmalloc' expects to get. */ | |
94 | #include <crt0.h> | |
95 | ||
96 | #ifdef REL_ALLOC | |
97 | int _crt0_startup_flags = _CRT0_FLAG_UNIX_SBRK; | |
98 | #else /* not REL_ALLOC */ | |
99 | int _crt0_startup_flags = (_CRT0_FLAG_UNIX_SBRK | _CRT0_FLAG_FILL_SBRK_MEMORY); | |
100 | #endif /* not REL_ALLOC */ | |
101 | #endif /* GNU_MALLOC */ | |
102 | ||
103 | #endif /* not SYSTEM_MALLOC */ | |
104 | #endif /* __DJGPP__ > 1 */ | |
aee81730 RS |
105 | |
106 | static unsigned long | |
107 | event_timestamp () | |
108 | { | |
109 | struct time t; | |
110 | unsigned long s; | |
f32d4091 | 111 | |
aee81730 RS |
112 | gettime (&t); |
113 | s = t.ti_min; | |
114 | s *= 60; | |
115 | s += t.ti_sec; | |
116 | s *= 1000; | |
117 | s += t.ti_hund * 10; | |
f32d4091 | 118 | |
aee81730 RS |
119 | return s; |
120 | } | |
121 | ||
f32d4091 KS |
122 | \f |
123 | /* ------------------------ Mouse control --------------------------- | |
124 | * | |
125 | * Coordinates are in screen positions and zero based. | |
126 | * Mouse buttons are numbered from left to right and also zero based. | |
127 | */ | |
1b94449f | 128 | |
0c3cfc51 EZ |
129 | /* This used to be in termhooks.h, but mainstream Emacs code no longer |
130 | uses it, and it was removed... */ | |
131 | #define NUM_MOUSE_BUTTONS (5) | |
132 | ||
f32d4091 KS |
133 | int have_mouse; /* 0: no, 1: enabled, -1: disabled */ |
134 | static int mouse_visible; | |
1b94449f | 135 | |
f32d4091 KS |
136 | static int mouse_last_x; |
137 | static int mouse_last_y; | |
1b94449f | 138 | |
f32d4091 KS |
139 | static int mouse_button_translate[NUM_MOUSE_BUTTONS]; |
140 | static int mouse_button_count; | |
1b94449f | 141 | |
f32d4091 KS |
142 | void |
143 | mouse_on () | |
1b94449f | 144 | { |
1b94449f | 145 | union REGS regs; |
1b94449f | 146 | |
f32d4091 | 147 | if (have_mouse > 0 && !mouse_visible) |
1b94449f | 148 | { |
f32d4091 KS |
149 | if (termscript) |
150 | fprintf (termscript, "<M_ON>"); | |
151 | regs.x.ax = 0x0001; | |
152 | int86 (0x33, ®s, ®s); | |
153 | mouse_visible = 1; | |
1b94449f | 154 | } |
1b94449f RS |
155 | } |
156 | ||
f32d4091 KS |
157 | void |
158 | mouse_off () | |
1b94449f | 159 | { |
f32d4091 | 160 | union REGS regs; |
1b94449f | 161 | |
f32d4091 | 162 | if (have_mouse > 0 && mouse_visible) |
1b94449f | 163 | { |
f32d4091 KS |
164 | if (termscript) |
165 | fprintf (termscript, "<M_OFF>"); | |
166 | regs.x.ax = 0x0002; | |
167 | int86 (0x33, ®s, ®s); | |
168 | mouse_visible = 0; | |
1b94449f | 169 | } |
1b94449f RS |
170 | } |
171 | ||
8f190436 EZ |
172 | static void |
173 | mouse_setup_buttons (int n_buttons) | |
174 | { | |
175 | if (n_buttons == 3) | |
176 | { | |
177 | mouse_button_count = 3; | |
178 | mouse_button_translate[0] = 0; /* Left */ | |
179 | mouse_button_translate[1] = 2; /* Middle */ | |
180 | mouse_button_translate[2] = 1; /* Right */ | |
181 | } | |
182 | else /* two, what else? */ | |
183 | { | |
184 | mouse_button_count = 2; | |
185 | mouse_button_translate[0] = 0; | |
186 | mouse_button_translate[1] = 1; | |
187 | } | |
188 | } | |
189 | ||
190 | DEFUN ("msdos-set-mouse-buttons", Fmsdos_set_mouse_buttons, Smsdos_set_mouse_buttons, | |
191 | 1, 1, "NSet number of mouse buttons to: ", | |
84968b32 EZ |
192 | "Set the number of mouse buttons to use by Emacs.\n\ |
193 | This is useful with mice that report the number of buttons inconsistently,\n\ | |
194 | e.g., if the number of buttons is reported as 3, but Emacs only sees 2 of\n\ | |
8f190436 EZ |
195 | them. This happens with wheeled mice on Windows 9X, for example.") |
196 | (nbuttons) | |
197 | Lisp_Object nbuttons; | |
198 | { | |
e7522695 EZ |
199 | int n; |
200 | ||
8f190436 | 201 | CHECK_NUMBER (nbuttons, 0); |
e7522695 EZ |
202 | n = XINT (nbuttons); |
203 | if (n < 2 || n > 3) | |
204 | Fsignal (Qargs_out_of_range, | |
205 | Fcons (build_string ("only 2 or 3 mouse buttons are supported"), | |
206 | Fcons (nbuttons, Qnil))); | |
207 | mouse_setup_buttons (n); | |
8f190436 EZ |
208 | return Qnil; |
209 | } | |
210 | ||
211c7152 EZ |
211 | static void |
212 | mouse_get_xy (int *x, int *y) | |
213 | { | |
214 | union REGS regs; | |
215 | ||
216 | regs.x.ax = 0x0003; | |
217 | int86 (0x33, ®s, ®s); | |
218 | *x = regs.x.cx / 8; | |
219 | *y = regs.x.dx / 8; | |
220 | } | |
221 | ||
f32d4091 KS |
222 | void |
223 | mouse_moveto (x, y) | |
224 | int x, y; | |
1b94449f | 225 | { |
f32d4091 | 226 | union REGS regs; |
1b94449f | 227 | |
f32d4091 KS |
228 | if (termscript) |
229 | fprintf (termscript, "<M_XY=%dx%d>", x, y); | |
230 | regs.x.ax = 0x0004; | |
231 | mouse_last_x = regs.x.cx = x * 8; | |
232 | mouse_last_y = regs.x.dx = y * 8; | |
233 | int86 (0x33, ®s, ®s); | |
1b94449f RS |
234 | } |
235 | ||
f32d4091 KS |
236 | static int |
237 | mouse_pressed (b, xp, yp) | |
238 | int b, *xp, *yp; | |
1b94449f | 239 | { |
f32d4091 | 240 | union REGS regs; |
1b94449f | 241 | |
f32d4091 KS |
242 | if (b >= mouse_button_count) |
243 | return 0; | |
244 | regs.x.ax = 0x0005; | |
245 | regs.x.bx = mouse_button_translate[b]; | |
246 | int86 (0x33, ®s, ®s); | |
247 | if (regs.x.bx) | |
248 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
249 | return (regs.x.bx != 0); | |
1b94449f RS |
250 | } |
251 | ||
f32d4091 KS |
252 | static int |
253 | mouse_released (b, xp, yp) | |
254 | int b, *xp, *yp; | |
1b94449f RS |
255 | { |
256 | union REGS regs; | |
257 | ||
f32d4091 KS |
258 | if (b >= mouse_button_count) |
259 | return 0; | |
260 | regs.x.ax = 0x0006; | |
261 | regs.x.bx = mouse_button_translate[b]; | |
262 | int86 (0x33, ®s, ®s); | |
263 | if (regs.x.bx) | |
264 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
265 | return (regs.x.bx != 0); | |
1b94449f RS |
266 | } |
267 | ||
0c7bc1aa EZ |
268 | static int |
269 | mouse_button_depressed (b, xp, yp) | |
270 | int b, *xp, *yp; | |
271 | { | |
272 | union REGS regs; | |
273 | ||
274 | if (b >= mouse_button_count) | |
275 | return 0; | |
276 | regs.x.ax = 0x0003; | |
277 | int86 (0x33, ®s, ®s); | |
278 | if ((regs.x.bx & (1 << mouse_button_translate[b])) != 0) | |
279 | { | |
280 | *xp = regs.x.cx / 8; | |
281 | *yp = regs.x.dx / 8; | |
282 | return 1; | |
283 | } | |
284 | return 0; | |
285 | } | |
286 | ||
f32d4091 KS |
287 | void |
288 | mouse_get_pos (f, insist, bar_window, part, x, y, time) | |
289 | FRAME_PTR *f; | |
290 | int insist; | |
291 | Lisp_Object *bar_window, *x, *y; | |
292 | enum scroll_bar_part *part; | |
293 | unsigned long *time; | |
294 | { | |
295 | int ix, iy; | |
211c7152 EZ |
296 | Lisp_Object frame, tail; |
297 | ||
298 | /* Clear the mouse-moved flag for every frame on this display. */ | |
299 | FOR_EACH_FRAME (tail, frame) | |
300 | XFRAME (frame)->mouse_moved = 0; | |
f32d4091 | 301 | |
2d764c78 | 302 | *f = SELECTED_FRAME(); |
f32d4091 KS |
303 | *bar_window = Qnil; |
304 | mouse_get_xy (&ix, &iy); | |
f32d4091 | 305 | *time = event_timestamp (); |
211c7152 EZ |
306 | *x = make_number (mouse_last_x = ix); |
307 | *y = make_number (mouse_last_y = iy); | |
f32d4091 | 308 | } |
1b94449f | 309 | |
f32d4091 KS |
310 | static void |
311 | mouse_check_moved () | |
1b94449f | 312 | { |
aee81730 | 313 | int x, y; |
1b94449f | 314 | |
f32d4091 | 315 | mouse_get_xy (&x, &y); |
2d764c78 | 316 | SELECTED_FRAME()->mouse_moved |= (x != mouse_last_x || y != mouse_last_y); |
f32d4091 KS |
317 | mouse_last_x = x; |
318 | mouse_last_y = y; | |
319 | } | |
1b94449f | 320 | |
97dd288b EZ |
321 | /* Force the mouse driver to ``forget'' about any button clicks until |
322 | now. */ | |
323 | static void | |
324 | mouse_clear_clicks (void) | |
325 | { | |
326 | int b; | |
327 | ||
328 | for (b = 0; b < mouse_button_count; b++) | |
329 | { | |
330 | int dummy_x, dummy_y; | |
331 | ||
332 | (void) mouse_pressed (b, &dummy_x, &dummy_y); | |
333 | (void) mouse_released (b, &dummy_x, &dummy_y); | |
334 | } | |
335 | } | |
336 | ||
f32d4091 KS |
337 | void |
338 | mouse_init () | |
339 | { | |
340 | union REGS regs; | |
647c32eb | 341 | |
f32d4091 KS |
342 | if (termscript) |
343 | fprintf (termscript, "<M_INIT>"); | |
1b94449f | 344 | |
f32d4091 KS |
345 | regs.x.ax = 0x0021; |
346 | int86 (0x33, ®s, ®s); | |
091d0bdf | 347 | |
0c7bc1aa EZ |
348 | /* Reset the mouse last press/release info. It seems that Windows |
349 | doesn't do that automatically when function 21h is called, which | |
350 | causes Emacs to ``remember'' the click that switched focus to the | |
351 | window just before Emacs was started from that window. */ | |
97dd288b | 352 | mouse_clear_clicks (); |
0c7bc1aa | 353 | |
f32d4091 KS |
354 | regs.x.ax = 0x0007; |
355 | regs.x.cx = 0; | |
356 | regs.x.dx = 8 * (ScreenCols () - 1); | |
357 | int86 (0x33, ®s, ®s); | |
1b94449f | 358 | |
f32d4091 KS |
359 | regs.x.ax = 0x0008; |
360 | regs.x.cx = 0; | |
361 | regs.x.dx = 8 * (ScreenRows () - 1); | |
362 | int86 (0x33, ®s, ®s); | |
1b94449f | 363 | |
f32d4091 KS |
364 | mouse_moveto (0, 0); |
365 | mouse_visible = 0; | |
366 | } | |
3eb1dbb6 | 367 | \f |
f32d4091 KS |
368 | /* ------------------------- Screen control ---------------------- |
369 | * | |
370 | */ | |
aee81730 | 371 | |
f32d4091 | 372 | static int internal_terminal = 0; |
aee81730 | 373 | |
f32d4091 KS |
374 | #ifndef HAVE_X_WINDOWS |
375 | extern unsigned char ScreenAttrib; | |
376 | static int screen_face; | |
aee81730 | 377 | |
f32d4091 KS |
378 | static int screen_size_X; |
379 | static int screen_size_Y; | |
380 | static int screen_size; | |
1b94449f | 381 | |
f32d4091 KS |
382 | static int current_pos_X; |
383 | static int current_pos_Y; | |
384 | static int new_pos_X; | |
385 | static int new_pos_Y; | |
1b94449f | 386 | |
f32d4091 KS |
387 | static void *startup_screen_buffer; |
388 | static int startup_screen_size_X; | |
389 | static int startup_screen_size_Y; | |
390 | static int startup_pos_X; | |
391 | static int startup_pos_Y; | |
c9adab25 | 392 | static unsigned char startup_screen_attrib; |
1b94449f | 393 | |
06b1ea13 EZ |
394 | static clock_t startup_time; |
395 | ||
f32d4091 | 396 | static int term_setup_done; |
1b94449f | 397 | |
8ba01a32 EZ |
398 | static unsigned short outside_cursor; |
399 | ||
f32d4091 | 400 | /* Similar to the_only_frame. */ |
f6816f88 | 401 | struct x_output the_only_x_display; |
1b94449f | 402 | |
039274cf EZ |
403 | /* Support for DOS/V (allows Japanese characters to be displayed on |
404 | standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */ | |
405 | ||
406 | /* Holds the address of the text-mode screen buffer. */ | |
407 | static unsigned long screen_old_address = 0; | |
408 | /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */ | |
409 | static unsigned short screen_virtual_segment = 0; | |
410 | static unsigned short screen_virtual_offset = 0; | |
68026917 AI |
411 | /* A flag to control how to display unibyte 8-bit characters. */ |
412 | extern int unibyte_display_via_language_environment; | |
039274cf | 413 | |
8ba01a32 EZ |
414 | Lisp_Object Qbar; |
415 | ||
039274cf EZ |
416 | #if __DJGPP__ > 1 |
417 | /* Update the screen from a part of relocated DOS/V screen buffer which | |
418 | begins at OFFSET and includes COUNT characters. */ | |
419 | static void | |
420 | dosv_refresh_virtual_screen (int offset, int count) | |
421 | { | |
422 | __dpmi_regs regs; | |
423 | ||
9ab8560d | 424 | if (offset < 0 || count < 0) /* paranoia; invalid values crash DOS/V */ |
40437cf5 EZ |
425 | return; |
426 | ||
039274cf EZ |
427 | regs.h.ah = 0xff; /* update relocated screen */ |
428 | regs.x.es = screen_virtual_segment; | |
429 | regs.x.di = screen_virtual_offset + offset; | |
430 | regs.x.cx = count; | |
431 | __dpmi_int (0x10, ®s); | |
432 | } | |
433 | #endif | |
434 | ||
d1d5dc19 | 435 | static void |
f32d4091 KS |
436 | dos_direct_output (y, x, buf, len) |
437 | int y; | |
438 | int x; | |
439 | char *buf; | |
440 | int len; | |
1b94449f | 441 | { |
40437cf5 EZ |
442 | int t0 = 2 * (x + y * screen_size_X); |
443 | int t = t0 + (int) ScreenPrimary; | |
039274cf | 444 | int l0 = len; |
fc171623 KH |
445 | |
446 | #if (__DJGPP__ < 2) | |
f32d4091 KS |
447 | while (--len >= 0) { |
448 | dosmemput (buf++, 1, t); | |
449 | t += 2; | |
450 | } | |
fc171623 KH |
451 | #else |
452 | /* This is faster. */ | |
453 | for (_farsetsel (_dos_ds); --len >= 0; t += 2, buf++) | |
454 | _farnspokeb (t, *buf); | |
039274cf EZ |
455 | |
456 | if (screen_virtual_segment) | |
457 | dosv_refresh_virtual_screen (t0, l0); | |
fc171623 | 458 | #endif |
1b94449f | 459 | } |
aee81730 | 460 | #endif |
1b94449f | 461 | |
1b94449f RS |
462 | /* Flash the screen as a substitute for BEEPs. */ |
463 | ||
f32d4091 | 464 | #if (__DJGPP__ < 2) |
49a09c76 | 465 | static void |
fcea9cd4 | 466 | do_visible_bell (xorattr) |
1b94449f RS |
467 | unsigned char xorattr; |
468 | { | |
49a09c76 | 469 | asm volatile |
7677c808 EZ |
470 | (" movb $1,%%dl \n\ |
471 | visible_bell_0: \n\ | |
472 | movl _ScreenPrimary,%%eax \n\ | |
473 | call dosmemsetup \n\ | |
474 | movl %%eax,%%ebx \n\ | |
475 | movl %1,%%ecx \n\ | |
476 | movb %0,%%al \n\ | |
477 | incl %%ebx \n\ | |
478 | visible_bell_1: \n\ | |
479 | xorb %%al,%%gs:(%%ebx) \n\ | |
480 | addl $2,%%ebx \n\ | |
481 | decl %%ecx \n\ | |
482 | jne visible_bell_1 \n\ | |
483 | decb %%dl \n\ | |
484 | jne visible_bell_3 \n\ | |
485 | visible_bell_2: \n\ | |
486 | movzwl %%ax,%%eax \n\ | |
487 | movzwl %%ax,%%eax \n\ | |
488 | movzwl %%ax,%%eax \n\ | |
489 | movzwl %%ax,%%eax \n\ | |
490 | decw %%cx \n\ | |
491 | jne visible_bell_2 \n\ | |
492 | jmp visible_bell_0 \n\ | |
ca986694 RS |
493 | visible_bell_3:" |
494 | : /* no output */ | |
f32d4091 | 495 | : "m" (xorattr), "g" (screen_size) |
ca986694 | 496 | : "%eax", "%ebx", /* "%gs",*/ "%ecx", "%edx"); |
1b94449f RS |
497 | } |
498 | ||
f32d4091 KS |
499 | static void |
500 | ScreenVisualBell (void) | |
501 | { | |
502 | /* This creates an xor-mask that will swap the default fore- and | |
503 | background colors. */ | |
504 | do_visible_bell (((the_only_x_display.foreground_pixel | |
505 | ^ the_only_x_display.background_pixel) | |
506 | * 0x11) & 0x7f); | |
507 | } | |
508 | #endif | |
509 | ||
510 | #ifndef HAVE_X_WINDOWS | |
511 | ||
b36701cc RS |
512 | static int blink_bit = -1; /* the state of the blink bit at startup */ |
513 | ||
76ac1508 RS |
514 | /* Enable bright background colors. */ |
515 | static void | |
516 | bright_bg (void) | |
517 | { | |
518 | union REGS regs; | |
519 | ||
b36701cc RS |
520 | /* Remember the original state of the blink/bright-background bit. |
521 | It is stored at 0040:0065h in the BIOS data area. */ | |
522 | if (blink_bit == -1) | |
523 | blink_bit = (_farpeekb (_dos_ds, 0x465) & 0x20) == 0x20; | |
524 | ||
76ac1508 RS |
525 | regs.h.bl = 0; |
526 | regs.x.ax = 0x1003; | |
527 | int86 (0x10, ®s, ®s); | |
528 | } | |
529 | ||
b36701cc RS |
530 | /* Disable bright background colors (and enable blinking) if we found |
531 | the video system in that state at startup. */ | |
532 | static void | |
533 | maybe_enable_blinking (void) | |
534 | { | |
535 | if (blink_bit == 1) | |
536 | { | |
537 | union REGS regs; | |
538 | ||
539 | regs.h.bl = 1; | |
540 | regs.x.ax = 0x1003; | |
541 | int86 (0x10, ®s, ®s); | |
542 | } | |
543 | } | |
544 | ||
8ba01a32 EZ |
545 | /* Return non-zero if the system has a VGA adapter. */ |
546 | static int | |
547 | vga_installed (void) | |
548 | { | |
549 | union REGS regs; | |
550 | ||
551 | regs.x.ax = 0x1a00; | |
552 | int86 (0x10, ®s, ®s); | |
553 | if (regs.h.al == 0x1a && regs.h.bl > 5 && regs.h.bl < 13) | |
554 | return 1; | |
555 | return 0; | |
556 | } | |
557 | ||
4a96d4d2 KH |
558 | /* Set the screen dimensions so that it can show no less than |
559 | ROWS x COLS frame. */ | |
48ffe371 | 560 | |
4a96d4d2 KH |
561 | void |
562 | dos_set_window_size (rows, cols) | |
563 | int *rows, *cols; | |
564 | { | |
565 | char video_name[30]; | |
566 | Lisp_Object video_mode; | |
567 | int video_mode_value; | |
568 | int have_vga = 0; | |
569 | union REGS regs; | |
570 | int current_rows = ScreenRows (), current_cols = ScreenCols (); | |
571 | ||
572 | if (*rows == current_rows && *cols == current_cols) | |
573 | return; | |
574 | ||
4a96d4d2 | 575 | mouse_off (); |
8ba01a32 | 576 | have_vga = vga_installed (); |
4a96d4d2 | 577 | |
48ffe371 | 578 | /* If the user specified a special video mode for these dimensions, |
4a96d4d2 KH |
579 | use that mode. */ |
580 | sprintf (video_name, "screen-dimensions-%dx%d", *rows, *cols); | |
581 | video_mode = XSYMBOL (Fintern_soft (build_string (video_name), | |
582 | Qnil))-> value; | |
583 | ||
584 | if (INTEGERP (video_mode) | |
585 | && (video_mode_value = XINT (video_mode)) > 0) | |
586 | { | |
587 | regs.x.ax = video_mode_value; | |
588 | int86 (0x10, ®s, ®s); | |
48ffe371 RS |
589 | |
590 | if (have_mouse) | |
591 | { | |
592 | /* Must hardware-reset the mouse, or else it won't update | |
593 | its notion of screen dimensions for some non-standard | |
594 | video modes. This is *painfully* slow... */ | |
595 | regs.x.ax = 0; | |
596 | int86 (0x33, ®s, ®s); | |
597 | } | |
4a96d4d2 KH |
598 | } |
599 | ||
600 | /* Find one of the dimensions supported by standard EGA/VGA | |
601 | which gives us at least the required dimensions. */ | |
602 | ||
603 | #if __DJGPP__ > 1 | |
604 | ||
605 | else | |
606 | { | |
607 | static struct { | |
608 | int rows; | |
609 | int need_vga; | |
610 | } std_dimension[] = { | |
611 | {25, 0}, | |
612 | {28, 1}, | |
613 | {35, 0}, | |
614 | {40, 1}, | |
615 | {43, 0}, | |
616 | {50, 1} | |
617 | }; | |
618 | int i = 0; | |
619 | ||
620 | while (i < sizeof (std_dimension) / sizeof (std_dimension[0])) | |
621 | { | |
622 | if (std_dimension[i].need_vga <= have_vga | |
623 | && std_dimension[i].rows >= *rows) | |
624 | { | |
625 | if (std_dimension[i].rows != current_rows | |
626 | || *cols != current_cols) | |
48ffe371 | 627 | _set_screen_lines (std_dimension[i].rows); |
4a96d4d2 KH |
628 | break; |
629 | } | |
48ffe371 | 630 | i++; |
4a96d4d2 KH |
631 | } |
632 | } | |
633 | ||
634 | #else /* not __DJGPP__ > 1 */ | |
635 | ||
636 | else if (*rows <= 25) | |
637 | { | |
638 | if (current_rows != 25 || current_cols != 80) | |
639 | { | |
640 | regs.x.ax = 3; | |
641 | int86 (0x10, ®s, ®s); | |
642 | regs.x.ax = 0x1101; | |
643 | regs.h.bl = 0; | |
644 | int86 (0x10, ®s, ®s); | |
645 | regs.x.ax = 0x1200; | |
646 | regs.h.bl = 32; | |
647 | int86 (0x10, ®s, ®s); | |
648 | regs.x.ax = 3; | |
649 | int86 (0x10, ®s, ®s); | |
650 | } | |
651 | } | |
652 | else if (*rows <= 50) | |
653 | if (have_vga && (current_rows != 50 || current_cols != 80) | |
654 | || *rows <= 43 && (current_rows != 43 || current_cols != 80)) | |
655 | { | |
656 | regs.x.ax = 3; | |
657 | int86 (0x10, ®s, ®s); | |
658 | regs.x.ax = 0x1112; | |
659 | regs.h.bl = 0; | |
660 | int86 (0x10, ®s, ®s); | |
661 | regs.x.ax = 0x1200; | |
662 | regs.h.bl = 32; | |
663 | int86 (0x10, ®s, ®s); | |
664 | regs.x.ax = 0x0100; | |
665 | regs.x.cx = 7; | |
666 | int86 (0x10, ®s, ®s); | |
667 | } | |
668 | #endif /* not __DJGPP__ > 1 */ | |
669 | ||
670 | if (have_mouse) | |
671 | { | |
4a96d4d2 KH |
672 | mouse_init (); |
673 | mouse_on (); | |
674 | } | |
675 | ||
676 | /* Tell the caller what dimensions have been REALLY set. */ | |
677 | *rows = ScreenRows (); | |
678 | *cols = ScreenCols (); | |
76ac1508 | 679 | |
bed43f1d EZ |
680 | /* Update Emacs' notion of screen dimensions. */ |
681 | screen_size_X = *cols; | |
682 | screen_size_Y = *rows; | |
683 | screen_size = *cols * *rows; | |
684 | ||
41ad069b EZ |
685 | #if __DJGPP__ > 1 |
686 | /* If the dimensions changed, the mouse highlight info is invalid. */ | |
687 | if (current_rows != *rows || current_cols != *cols) | |
688 | { | |
689 | struct frame *f = SELECTED_FRAME(); | |
690 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
691 | Lisp_Object window = dpyinfo->mouse_face_window; | |
692 | ||
693 | if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f) | |
694 | { | |
695 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
696 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
697 | dpyinfo->mouse_face_window = Qnil; | |
698 | } | |
699 | } | |
700 | #endif | |
701 | ||
76ac1508 RS |
702 | /* Enable bright background colors. */ |
703 | bright_bg (); | |
039274cf EZ |
704 | |
705 | /* FIXME: I'm not sure the above will run at all on DOS/V. But let's | |
706 | be defensive anyway. */ | |
707 | if (screen_virtual_segment) | |
708 | dosv_refresh_virtual_screen (0, *cols * *rows); | |
4a96d4d2 KH |
709 | } |
710 | ||
48ffe371 RS |
711 | /* If we write a character in the position where the mouse is, |
712 | the mouse cursor may need to be refreshed. */ | |
09e2ac30 RS |
713 | |
714 | static void | |
f32d4091 | 715 | mouse_off_maybe () |
09e2ac30 | 716 | { |
f32d4091 KS |
717 | int x, y; |
718 | ||
719 | if (!mouse_visible) | |
720 | return; | |
721 | ||
722 | mouse_get_xy (&x, &y); | |
723 | if (y != new_pos_Y || x < new_pos_X) | |
724 | return; | |
725 | ||
726 | mouse_off (); | |
727 | } | |
728 | ||
8ba01a32 EZ |
729 | #define DEFAULT_CURSOR_START (-1) |
730 | #define DEFAULT_CURSOR_WIDTH (-1) | |
731 | #define BOX_CURSOR_WIDTH (-32) | |
732 | ||
733 | /* Set cursor to begin at scan line START_LINE in the character cell | |
734 | and extend for WIDTH scan lines. Scan lines are counted from top | |
735 | of the character cell, starting from zero. */ | |
736 | static void | |
737 | msdos_set_cursor_shape (struct frame *f, int start_line, int width) | |
738 | { | |
739 | #if __DJGPP__ > 1 | |
740 | unsigned desired_cursor; | |
741 | __dpmi_regs regs; | |
742 | int max_line, top_line, bot_line; | |
743 | ||
744 | /* Avoid the costly BIOS call if F isn't the currently selected | |
745 | frame. Allow for NULL as unconditionally meaning the selected | |
746 | frame. */ | |
747 | if (f && f != SELECTED_FRAME()) | |
748 | return; | |
749 | ||
750 | /* The character cell size in scan lines is stored at 40:85 in the | |
751 | BIOS data area. */ | |
752 | max_line = _farpeekw (_dos_ds, 0x485) - 1; | |
753 | switch (max_line) | |
754 | { | |
755 | default: /* this relies on CGA cursor emulation being ON! */ | |
756 | case 7: | |
757 | bot_line = 7; | |
758 | break; | |
759 | case 9: | |
760 | bot_line = 9; | |
761 | break; | |
762 | case 13: | |
763 | bot_line = 12; | |
764 | break; | |
765 | case 15: | |
766 | bot_line = 14; | |
767 | break; | |
768 | } | |
769 | ||
770 | if (width < 0) | |
771 | { | |
772 | if (width == BOX_CURSOR_WIDTH) | |
773 | { | |
774 | top_line = 0; | |
775 | bot_line = max_line; | |
776 | } | |
777 | else if (start_line != DEFAULT_CURSOR_START) | |
778 | { | |
779 | top_line = start_line; | |
780 | bot_line = top_line - width - 1; | |
781 | } | |
782 | else if (width != DEFAULT_CURSOR_WIDTH) | |
783 | { | |
784 | top_line = 0; | |
785 | bot_line = -1 - width; | |
786 | } | |
787 | else | |
788 | top_line = bot_line + 1; | |
789 | } | |
790 | else if (width == 0) | |
791 | { | |
792 | /* [31, 0] seems to DTRT for all screen sizes. */ | |
793 | top_line = 31; | |
794 | bot_line = 0; | |
795 | } | |
796 | else /* WIDTH is positive */ | |
797 | { | |
798 | if (start_line != DEFAULT_CURSOR_START) | |
799 | bot_line = start_line; | |
800 | top_line = bot_line - (width - 1); | |
801 | } | |
802 | ||
803 | /* If the current cursor shape is already what they want, we are | |
804 | history here. */ | |
805 | desired_cursor = ((top_line & 0x1f) << 8) | (bot_line & 0x1f); | |
806 | if (desired_cursor == _farpeekw (_dos_ds, 0x460)) | |
807 | return; | |
808 | ||
809 | regs.h.ah = 1; | |
810 | regs.x.cx = desired_cursor; | |
811 | __dpmi_int (0x10, ®s); | |
812 | #endif /* __DJGPP__ > 1 */ | |
813 | } | |
814 | ||
815 | static void | |
816 | IT_set_cursor_type (struct frame *f, Lisp_Object cursor_type) | |
817 | { | |
818 | if (EQ (cursor_type, Qbar)) | |
819 | { | |
820 | /* Just BAR means the normal EGA/VGA cursor. */ | |
821 | msdos_set_cursor_shape (f, DEFAULT_CURSOR_START, DEFAULT_CURSOR_WIDTH); | |
822 | } | |
823 | else if (CONSP (cursor_type) && EQ (XCAR (cursor_type), Qbar)) | |
824 | { | |
825 | Lisp_Object bar_parms = XCDR (cursor_type); | |
826 | int width; | |
827 | ||
828 | if (INTEGERP (bar_parms)) | |
829 | { | |
830 | /* Feature: negative WIDTH means cursor at the top | |
831 | of the character cell, zero means invisible cursor. */ | |
832 | width = XINT (bar_parms); | |
833 | msdos_set_cursor_shape (f, width >= 0 ? DEFAULT_CURSOR_START : 0, | |
834 | width); | |
835 | } | |
836 | else if (CONSP (bar_parms) | |
837 | && INTEGERP (XCAR (bar_parms)) | |
838 | && INTEGERP (XCDR (bar_parms))) | |
839 | { | |
840 | int start_line = XINT (XCDR (bar_parms)); | |
841 | ||
842 | width = XINT (XCAR (bar_parms)); | |
843 | msdos_set_cursor_shape (f, start_line, width); | |
844 | } | |
845 | } | |
846 | else | |
847 | /* Treat anything unknown as "box cursor". This includes nil, so | |
848 | that a frame which doesn't specify a cursor type gets a box, | |
849 | which is the default in Emacs. */ | |
850 | msdos_set_cursor_shape (f, 0, BOX_CURSOR_WIDTH); | |
851 | } | |
852 | ||
71f65669 EZ |
853 | static void |
854 | IT_ring_bell (void) | |
f32d4091 KS |
855 | { |
856 | if (visible_bell) | |
aee81730 | 857 | { |
f32d4091 KS |
858 | mouse_off (); |
859 | ScreenVisualBell (); | |
aee81730 | 860 | } |
f32d4091 | 861 | else |
3635be47 RS |
862 | { |
863 | union REGS inregs, outregs; | |
864 | inregs.h.ah = 2; | |
865 | inregs.h.dl = 7; | |
866 | intdos (&inregs, &outregs); | |
867 | } | |
09e2ac30 RS |
868 | } |
869 | ||
c77f6f1b EZ |
870 | /* Given a face id FACE, extract the face parameters to be used for |
871 | display until the face changes. The face parameters (actually, its | |
872 | color) are used to construct the video attribute byte for each | |
873 | glyph during the construction of the buffer that is then blitted to | |
874 | the video RAM. */ | |
f32d4091 KS |
875 | static void |
876 | IT_set_face (int face) | |
877 | { | |
2d764c78 | 878 | struct frame *sf = SELECTED_FRAME(); |
546701f5 EZ |
879 | struct face *fp = FACE_FROM_ID (sf, face); |
880 | struct face *dfp = FACE_FROM_ID (sf, DEFAULT_FACE_ID); | |
881 | unsigned long fg, bg, dflt_fg, dflt_bg; | |
f32d4091 | 882 | |
c77f6f1b | 883 | if (!fp) |
e30aee93 | 884 | { |
546701f5 | 885 | fp = dfp; |
e30aee93 EZ |
886 | /* The default face for the frame should always be realized and |
887 | cached. */ | |
888 | if (!fp) | |
889 | abort (); | |
890 | } | |
f32d4091 | 891 | screen_face = face; |
c77f6f1b EZ |
892 | fg = fp->foreground; |
893 | bg = fp->background; | |
546701f5 EZ |
894 | dflt_fg = dfp->foreground; |
895 | dflt_bg = dfp->background; | |
c77f6f1b | 896 | |
abcce93a MB |
897 | /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* colors |
898 | mean use the colors of the default face. Note that we assume all | |
899 | 16 colors to be available for the background, since Emacs switches | |
900 | on this mode (and loses the blinking attribute) at startup. */ | |
f9d2fdc4 | 901 | if (fg == FACE_TTY_DEFAULT_COLOR || fg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 | 902 | fg = FRAME_FOREGROUND_PIXEL (sf); |
f9d2fdc4 | 903 | else if (fg == FACE_TTY_DEFAULT_BG_COLOR) |
3b620731 EZ |
904 | fg = FRAME_BACKGROUND_PIXEL (sf); |
905 | if (bg == FACE_TTY_DEFAULT_COLOR || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
906 | bg = FRAME_BACKGROUND_PIXEL (sf); | |
f9d2fdc4 | 907 | else if (bg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 EZ |
908 | bg = FRAME_FOREGROUND_PIXEL (sf); |
909 | ||
910 | /* Make sure highlighted lines really stand out, come what may. */ | |
abcce93a | 911 | if (fp->tty_reverse_p && (fg == dflt_fg && bg == dflt_bg)) |
3b620731 EZ |
912 | { |
913 | unsigned long tem = fg; | |
914 | ||
915 | fg = bg; | |
916 | bg = tem; | |
917 | } | |
76648534 EZ |
918 | /* If the user requested inverse video, obey. */ |
919 | if (inverse_video) | |
920 | { | |
921 | unsigned long tem2 = fg; | |
922 | ||
923 | fg = bg; | |
924 | bg = tem2; | |
925 | } | |
c77f6f1b | 926 | if (termscript) |
abcce93a MB |
927 | fprintf (termscript, "<FACE %d: %d/%d[FG:%d/BG:%d]>", face, |
928 | fp->foreground, fp->background, fg, bg); | |
c77f6f1b EZ |
929 | if (fg >= 0 && fg < 16) |
930 | { | |
931 | ScreenAttrib &= 0xf0; | |
932 | ScreenAttrib |= fg; | |
933 | } | |
934 | if (bg >= 0 && bg < 16) | |
935 | { | |
936 | ScreenAttrib &= 0x0f; | |
937 | ScreenAttrib |= ((bg & 0x0f) << 4); | |
938 | } | |
f32d4091 KS |
939 | } |
940 | ||
aa9ce936 EZ |
941 | Lisp_Object Vdos_unsupported_char_glyph; |
942 | ||
71f65669 | 943 | static void |
c77f6f1b | 944 | IT_write_glyphs (struct glyph *str, int str_len) |
f32d4091 | 945 | { |
aa9ce936 EZ |
946 | unsigned char *screen_buf, *screen_bp, *screen_buf_end, *bp; |
947 | int unsupported_face = FAST_GLYPH_FACE (Vdos_unsupported_char_glyph); | |
948 | unsigned unsupported_char= FAST_GLYPH_CHAR (Vdos_unsupported_char_glyph); | |
039274cf | 949 | int offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 EZ |
950 | register int sl = str_len; |
951 | register int tlen = GLYPH_TABLE_LENGTH; | |
952 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
953 | ||
e023fb27 EZ |
954 | /* If terminal_coding does any conversion, use it, otherwise use |
955 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
956 | because it always returns 1 if terminal_coding.src_multibyte is 1. */ | |
957 | struct coding_system *coding = | |
958 | (terminal_coding.common_flags & CODING_REQUIRE_ENCODING_MASK | |
959 | ? &terminal_coding | |
960 | : &safe_terminal_coding); | |
2d764c78 | 961 | struct frame *sf; |
87485d6f | 962 | |
52d38ab2 EZ |
963 | /* Do we need to consider conversion of unibyte characters to |
964 | multibyte? */ | |
965 | int convert_unibyte_characters | |
e16bf494 AI |
966 | = (NILP (current_buffer->enable_multibyte_characters) |
967 | && unibyte_display_via_language_environment); | |
52d38ab2 | 968 | |
648648a9 KH |
969 | unsigned char conversion_buffer[256]; |
970 | int conversion_buffer_size = sizeof conversion_buffer; | |
971 | ||
3b620731 | 972 | if (str_len <= 0) return; |
aee81730 | 973 | |
aa9ce936 EZ |
974 | screen_buf = screen_bp = alloca (str_len * 2); |
975 | screen_buf_end = screen_buf + str_len * 2; | |
2d764c78 | 976 | sf = SELECTED_FRAME(); |
e30aee93 EZ |
977 | |
978 | /* Since faces get cached and uncached behind our back, we can't | |
979 | rely on their indices in the cache being consistent across | |
980 | invocations. So always reset the screen face to the default | |
981 | face of the frame, before writing glyphs, and let the glyphs | |
982 | set the right face if it's different from the default. */ | |
983 | IT_set_face (DEFAULT_FACE_ID); | |
aee81730 | 984 | |
aa9ce936 EZ |
985 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
986 | the tail. */ | |
987 | terminal_coding.mode &= ~CODING_MODE_LAST_BLOCK; | |
988 | while (sl) | |
989 | { | |
c77f6f1b | 990 | int cf, chlen, enclen; |
3b620731 | 991 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *buf; |
c77f6f1b | 992 | unsigned ch; |
aa9ce936 EZ |
993 | |
994 | /* Glyphs with GLYPH_MASK_PADDING bit set are actually there | |
995 | only for the redisplay code to know how many columns does | |
996 | this character occupy on the screen. Skip padding glyphs. */ | |
c77f6f1b | 997 | if (CHAR_GLYPH_PADDING_P (*str)) |
aa9ce936 EZ |
998 | { |
999 | str++; | |
1000 | sl--; | |
1001 | } | |
1002 | else | |
1003 | { | |
04ee4f45 EZ |
1004 | register GLYPH g = GLYPH_FROM_CHAR_GLYPH (*str); |
1005 | int glyph_not_in_table = 0; | |
1006 | ||
78555fbe EZ |
1007 | /* If g is negative, it means we have a multibyte character |
1008 | in *str. That's what GLYPH_FROM_CHAR_GLYPH returns for | |
1009 | multibyte characters. */ | |
04ee4f45 EZ |
1010 | if (g < 0 || g >= tlen) |
1011 | { | |
1012 | /* This glyph doesn't have an entry in Vglyph_table. */ | |
1013 | ch = str->u.ch; | |
1014 | glyph_not_in_table = 1; | |
1015 | } | |
1016 | else | |
1017 | { | |
1018 | /* This glyph has an entry in Vglyph_table, so process | |
1019 | any aliases before testing for simpleness. */ | |
1020 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); | |
1021 | ch = FAST_GLYPH_CHAR (g); | |
1022 | } | |
1023 | ||
aa9ce936 | 1024 | /* Convert the character code to multibyte, if they |
04ee4f45 EZ |
1025 | requested display via language environment. We only want |
1026 | to convert unibyte characters to multibyte in unibyte | |
1027 | buffers! Otherwise, the 8-bit value in CH came from the | |
1028 | display table set up to display foreign characters. */ | |
52d38ab2 | 1029 | if (SINGLE_BYTE_CHAR_P (ch) && convert_unibyte_characters |
f0dd4c35 EZ |
1030 | && (ch >= 0240 |
1031 | || (ch >= 0200 && !NILP (Vnonascii_translation_table)))) | |
aa9ce936 EZ |
1032 | ch = unibyte_char_to_multibyte (ch); |
1033 | ||
1034 | /* Invalid characters are displayed with a special glyph. */ | |
04ee4f45 | 1035 | if (! CHAR_VALID_P (ch, 0)) |
aa9ce936 EZ |
1036 | { |
1037 | g = !NILP (Vdos_unsupported_char_glyph) | |
1038 | ? Vdos_unsupported_char_glyph | |
2d764c78 | 1039 | : MAKE_GLYPH (sf, '\177', GLYPH_FACE (sf, g)); |
aa9ce936 EZ |
1040 | ch = FAST_GLYPH_CHAR (g); |
1041 | } | |
aa9ce936 EZ |
1042 | |
1043 | /* If the face of this glyph is different from the current | |
1044 | screen face, update the screen attribute byte. */ | |
78555fbe | 1045 | cf = str->face_id; |
aa9ce936 EZ |
1046 | if (cf != screen_face) |
1047 | IT_set_face (cf); /* handles invalid faces gracefully */ | |
1048 | ||
04ee4f45 | 1049 | if (glyph_not_in_table || GLYPH_SIMPLE_P (tbase, tlen, g)) |
3b620731 EZ |
1050 | { |
1051 | /* We generate the multi-byte form of CH in WORKBUF. */ | |
1052 | chlen = CHAR_STRING (ch, workbuf); | |
1053 | buf = workbuf; | |
1054 | } | |
aa9ce936 EZ |
1055 | else |
1056 | { | |
1057 | /* We have a string in Vglyph_table. */ | |
1058 | chlen = GLYPH_LENGTH (tbase, g); | |
1059 | buf = GLYPH_STRING (tbase, g); | |
1060 | } | |
1061 | ||
c77f6f1b | 1062 | /* If the character is not multibyte, don't bother converting it. */ |
aa9ce936 EZ |
1063 | if (chlen == 1) |
1064 | { | |
1065 | *conversion_buffer = (unsigned char)ch; | |
1066 | chlen = 0; | |
1067 | enclen = 1; | |
1068 | } | |
1069 | else | |
1070 | { | |
55a17202 | 1071 | coding->src_multibyte = 1; |
aa9ce936 EZ |
1072 | encode_coding (coding, buf, conversion_buffer, chlen, |
1073 | conversion_buffer_size); | |
1074 | chlen -= coding->consumed; | |
1075 | enclen = coding->produced; | |
1076 | ||
1077 | /* Replace glyph codes that cannot be converted by | |
1078 | terminal_coding with Vdos_unsupported_char_glyph. */ | |
1079 | if (*conversion_buffer == '?') | |
1080 | { | |
5e30eaa2 | 1081 | unsigned char *cbp = conversion_buffer; |
aa9ce936 EZ |
1082 | |
1083 | while (cbp < conversion_buffer + enclen && *cbp == '?') | |
1084 | *cbp++ = unsupported_char; | |
1085 | if (unsupported_face != screen_face) | |
1086 | IT_set_face (unsupported_face); | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | if (enclen + chlen > screen_buf_end - screen_bp) | |
1091 | { | |
1092 | /* The allocated buffer for screen writes is too small. | |
1093 | Flush it and loop again without incrementing STR, so | |
1094 | that the next loop will begin with the same glyph. */ | |
1095 | int nbytes = screen_bp - screen_buf; | |
1096 | ||
1097 | mouse_off_maybe (); | |
1098 | dosmemput (screen_buf, nbytes, (int)ScreenPrimary + offset); | |
1099 | if (screen_virtual_segment) | |
1100 | dosv_refresh_virtual_screen (offset, nbytes / 2); | |
1101 | new_pos_X += nbytes / 2; | |
1102 | offset += nbytes; | |
1103 | ||
1104 | /* Prepare to reuse the same buffer again. */ | |
1105 | screen_bp = screen_buf; | |
1106 | } | |
1107 | else | |
1108 | { | |
1109 | /* There's enough place in the allocated buffer to add | |
1110 | the encoding of this glyph. */ | |
1111 | ||
1112 | /* First, copy the encoded bytes. */ | |
1113 | for (bp = conversion_buffer; enclen--; bp++) | |
1114 | { | |
1115 | *screen_bp++ = (unsigned char)*bp; | |
1116 | *screen_bp++ = ScreenAttrib; | |
1117 | if (termscript) | |
1118 | fputc (*bp, termscript); | |
1119 | } | |
1120 | ||
1121 | /* Now copy the bytes not consumed by the encoding. */ | |
1122 | if (chlen > 0) | |
1123 | { | |
1124 | buf += coding->consumed; | |
1125 | while (chlen--) | |
1126 | { | |
1127 | if (termscript) | |
1128 | fputc (*buf, termscript); | |
1129 | *screen_bp++ = (unsigned char)*buf++; | |
1130 | *screen_bp++ = ScreenAttrib; | |
1131 | } | |
1132 | } | |
1133 | ||
1134 | /* Update STR and its remaining length. */ | |
1135 | str++; | |
1136 | sl--; | |
1137 | } | |
1138 | } | |
aee81730 RS |
1139 | } |
1140 | ||
aa9ce936 | 1141 | /* Dump whatever is left in the screen buffer. */ |
f32d4091 | 1142 | mouse_off_maybe (); |
aa9ce936 | 1143 | dosmemput (screen_buf, screen_bp - screen_buf, (int)ScreenPrimary + offset); |
039274cf | 1144 | if (screen_virtual_segment) |
aa9ce936 EZ |
1145 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); |
1146 | new_pos_X += (screen_bp - screen_buf) / 2; | |
1147 | ||
1148 | /* We may have to output some codes to terminate the writing. */ | |
1149 | if (CODING_REQUIRE_FLUSHING (coding)) | |
1150 | { | |
1151 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
1152 | encode_coding (coding, "", conversion_buffer, 0, conversion_buffer_size); | |
1153 | if (coding->produced > 0) | |
1154 | { | |
241424da | 1155 | screen_buf = alloca (coding->produced * 2); |
aa9ce936 EZ |
1156 | for (screen_bp = screen_buf, bp = conversion_buffer; |
1157 | coding->produced--; bp++) | |
1158 | { | |
1159 | *screen_bp++ = (unsigned char)*bp; | |
1160 | *screen_bp++ = ScreenAttrib; | |
1161 | if (termscript) | |
1162 | fputc (*bp, termscript); | |
1163 | } | |
1164 | offset += screen_bp - screen_buf; | |
1165 | mouse_off_maybe (); | |
1166 | dosmemput (screen_buf, screen_bp - screen_buf, | |
1167 | (int)ScreenPrimary + offset); | |
1168 | if (screen_virtual_segment) | |
1169 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); | |
1170 | new_pos_X += (screen_bp - screen_buf) / 2; | |
1171 | } | |
1172 | } | |
f32d4091 | 1173 | } |
aee81730 | 1174 | |
41ad069b EZ |
1175 | /************************************************************************ |
1176 | Mouse Highlight (and friends..) | |
1177 | ************************************************************************/ | |
1178 | ||
1179 | /* This is used for debugging, to turn off note_mouse_highlight. */ | |
1180 | int disable_mouse_highlight; | |
1181 | ||
48c14970 EZ |
1182 | /* If non-nil, dos_rawgetc generates an event to display that string. |
1183 | (The display is done in keyboard.c:read_char, by calling | |
1184 | show_help_echo.) */ | |
41ad069b EZ |
1185 | static Lisp_Object help_echo; |
1186 | static Lisp_Object previous_help_echo; /* a helper temporary variable */ | |
1187 | ||
48c14970 EZ |
1188 | /* These record the window, the object and the position where the help |
1189 | echo string was generated. */ | |
1190 | static Lisp_Object help_echo_window; | |
1191 | static Lisp_Object help_echo_object; | |
1192 | static int help_echo_pos; | |
1193 | ||
41ad069b EZ |
1194 | static int mouse_preempted = 0; /* non-zero when XMenu gobbles mouse events */ |
1195 | ||
1196 | /* Set the mouse pointer shape according to whether it is in the | |
1197 | area where the mouse highlight is in effect. */ | |
1198 | static void | |
1199 | IT_set_mouse_pointer (int mode) | |
1200 | { | |
1201 | /* A no-op for now. DOS text-mode mouse pointer doesn't offer too | |
1202 | many possibilities to change its shape, and the available | |
1203 | functionality pretty much sucks (e.g., almost every reasonable | |
1204 | shape will conceal the character it is on). Since the color of | |
1205 | the pointer changes in the highlighted area, it is not clear to | |
1206 | me whether anything else is required, anyway. */ | |
1207 | } | |
1208 | ||
1209 | /* Display the active region described by mouse_face_* | |
1210 | in its mouse-face if HL > 0, in its normal face if HL = 0. */ | |
1211 | static void | |
1212 | show_mouse_face (struct display_info *dpyinfo, int hl) | |
1213 | { | |
1214 | struct window *w = XWINDOW (dpyinfo->mouse_face_window); | |
1215 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
1216 | int i; | |
1217 | struct face *fp; | |
1218 | ||
1219 | ||
1220 | /* If window is in the process of being destroyed, don't bother | |
1221 | doing anything. */ | |
1222 | if (w->current_matrix == NULL) | |
1223 | goto set_cursor_shape; | |
1224 | ||
1225 | /* Recognize when we are called to operate on rows that don't exist | |
1226 | anymore. This can happen when a window is split. */ | |
1227 | if (dpyinfo->mouse_face_end_row >= w->current_matrix->nrows) | |
1228 | goto set_cursor_shape; | |
1229 | ||
1230 | /* There's no sense to do anything if the mouse face isn't realized. */ | |
1231 | if (hl > 0) | |
1232 | { | |
1233 | fp = FACE_FROM_ID (SELECTED_FRAME(), dpyinfo->mouse_face_face_id); | |
1234 | if (!fp) | |
1235 | goto set_cursor_shape; | |
1236 | } | |
1237 | ||
1238 | /* Note that mouse_face_beg_row etc. are window relative. */ | |
1239 | for (i = dpyinfo->mouse_face_beg_row; | |
1240 | i <= dpyinfo->mouse_face_end_row; | |
1241 | i++) | |
1242 | { | |
1243 | int start_hpos, end_hpos; | |
1244 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, i); | |
1245 | ||
1246 | /* Don't do anything if row doesn't have valid contents. */ | |
1247 | if (!row->enabled_p) | |
1248 | continue; | |
1249 | ||
1250 | /* For all but the first row, the highlight starts at column 0. */ | |
1251 | if (i == dpyinfo->mouse_face_beg_row) | |
1252 | start_hpos = dpyinfo->mouse_face_beg_col; | |
1253 | else | |
1254 | start_hpos = 0; | |
1255 | ||
1256 | if (i == dpyinfo->mouse_face_end_row) | |
1257 | end_hpos = dpyinfo->mouse_face_end_col; | |
1258 | else | |
1259 | end_hpos = row->used[TEXT_AREA]; | |
1260 | ||
1261 | if (end_hpos <= start_hpos) | |
1262 | continue; | |
48c14970 EZ |
1263 | /* Record that some glyphs of this row are displayed in |
1264 | mouse-face. */ | |
1265 | row->mouse_face_p = hl > 0; | |
41ad069b EZ |
1266 | if (hl > 0) |
1267 | { | |
1268 | int vpos = row->y + WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w); | |
1269 | int kstart = start_hpos + WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w); | |
1270 | int nglyphs = end_hpos - start_hpos; | |
1271 | int offset = ScreenPrimary + 2*(vpos*screen_size_X + kstart) + 1; | |
1272 | int start_offset = offset; | |
1273 | ||
1274 | if (termscript) | |
1275 | fprintf (termscript, "\n<MH+ %d-%d:%d>", | |
1276 | kstart, kstart + nglyphs - 1, vpos); | |
1277 | ||
1278 | mouse_off (); | |
1279 | IT_set_face (dpyinfo->mouse_face_face_id); | |
1280 | /* Since we are going to change only the _colors_ of the | |
1281 | displayed text, there's no need to go through all the | |
1282 | pain of generating and encoding the text from the glyphs. | |
1283 | Instead, we simply poke the attribute byte of each | |
1284 | affected position in video memory with the colors | |
1285 | computed by IT_set_face! */ | |
1286 | _farsetsel (_dos_ds); | |
1287 | while (nglyphs--) | |
1288 | { | |
1289 | _farnspokeb (offset, ScreenAttrib); | |
1290 | offset += 2; | |
1291 | } | |
1292 | if (screen_virtual_segment) | |
1293 | dosv_refresh_virtual_screen (start_offset, end_hpos - start_hpos); | |
1294 | mouse_on (); | |
1295 | } | |
1296 | else | |
1297 | { | |
1298 | /* We are removing a previously-drawn mouse highlight. The | |
1299 | safest way to do so is to redraw the glyphs anew, since | |
1300 | all kinds of faces and display tables could have changed | |
1301 | behind our back. */ | |
1302 | int nglyphs = end_hpos - start_hpos; | |
1303 | int save_x = new_pos_X, save_y = new_pos_Y; | |
1304 | ||
1305 | if (end_hpos >= row->used[TEXT_AREA]) | |
1306 | nglyphs = row->used[TEXT_AREA] - start_hpos; | |
1307 | ||
1308 | /* IT_write_glyphs writes at cursor position, so we need to | |
1309 | temporarily move cursor coordinates to the beginning of | |
1310 | the highlight region. */ | |
1311 | new_pos_X = start_hpos + WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w); | |
1312 | new_pos_Y = row->y + WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w); | |
1313 | ||
1314 | if (termscript) | |
1315 | fprintf (termscript, "<MH- %d-%d:%d>", | |
1316 | new_pos_X, new_pos_X + nglyphs - 1, new_pos_Y); | |
1317 | IT_write_glyphs (row->glyphs[TEXT_AREA] + start_hpos, nglyphs); | |
1318 | if (termscript) | |
1319 | fputs ("\n", termscript); | |
1320 | new_pos_X = save_x; | |
1321 | new_pos_Y = save_y; | |
1322 | } | |
1323 | } | |
1324 | ||
1325 | set_cursor_shape: | |
1326 | ||
1327 | /* Change the mouse pointer shape. */ | |
1328 | IT_set_mouse_pointer (hl); | |
1329 | } | |
1330 | ||
1331 | /* Clear out the mouse-highlighted active region. | |
1332 | Redraw it un-highlighted first. */ | |
1333 | static void | |
1334 | clear_mouse_face (struct display_info *dpyinfo) | |
1335 | { | |
1336 | if (! NILP (dpyinfo->mouse_face_window)) | |
1337 | show_mouse_face (dpyinfo, 0); | |
1338 | ||
1339 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
1340 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
1341 | dpyinfo->mouse_face_window = Qnil; | |
1342 | } | |
1343 | ||
1344 | /* Find the glyph matrix position of buffer position POS in window W. | |
1345 | *HPOS and *VPOS are set to the positions found. W's current glyphs | |
1346 | must be up to date. If POS is above window start return (0, 0). | |
1347 | If POS is after end of W, return end of last line in W. */ | |
1348 | static int | |
1349 | fast_find_position (struct window *w, int pos, int *hpos, int *vpos) | |
1350 | { | |
1351 | int i; | |
1352 | int lastcol; | |
1353 | int maybe_next_line_p = 0; | |
1354 | int line_start_position; | |
1355 | int yb = window_text_bottom_y (w); | |
1356 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, 0); | |
1357 | struct glyph_row *best_row = row; | |
1358 | ||
1359 | while (row->y < yb) | |
1360 | { | |
1361 | if (row->used[TEXT_AREA]) | |
1362 | line_start_position = row->glyphs[TEXT_AREA]->charpos; | |
1363 | else | |
1364 | line_start_position = 0; | |
1365 | ||
1366 | if (line_start_position > pos) | |
1367 | break; | |
1368 | /* If the position sought is the end of the buffer, | |
1369 | don't include the blank lines at the bottom of the window. */ | |
1370 | else if (line_start_position == pos | |
1371 | && pos == BUF_ZV (XBUFFER (w->buffer))) | |
1372 | { | |
1373 | maybe_next_line_p = 1; | |
1374 | break; | |
1375 | } | |
1376 | else if (line_start_position > 0) | |
1377 | best_row = row; | |
440ffd67 EZ |
1378 | |
1379 | /* Don't overstep the last matrix row, lest we get into the | |
1380 | never-never land... */ | |
1381 | if (row->y + 1 >= yb) | |
1382 | break; | |
41ad069b EZ |
1383 | |
1384 | ++row; | |
1385 | } | |
1386 | ||
1387 | /* Find the right column within BEST_ROW. */ | |
1388 | lastcol = 0; | |
1389 | row = best_row; | |
1390 | for (i = 0; i < row->used[TEXT_AREA]; i++) | |
1391 | { | |
1392 | struct glyph *glyph = row->glyphs[TEXT_AREA] + i; | |
1393 | int charpos; | |
1394 | ||
1395 | charpos = glyph->charpos; | |
1396 | if (charpos == pos) | |
1397 | { | |
1398 | *hpos = i; | |
1399 | *vpos = row->y; | |
1400 | return 1; | |
1401 | } | |
1402 | else if (charpos > pos) | |
1403 | break; | |
1404 | else if (charpos > 0) | |
1405 | lastcol = i; | |
1406 | } | |
1407 | ||
1408 | /* If we're looking for the end of the buffer, | |
1409 | and we didn't find it in the line we scanned, | |
1410 | use the start of the following line. */ | |
1411 | if (maybe_next_line_p) | |
1412 | { | |
1413 | ++row; | |
1414 | lastcol = 0; | |
1415 | } | |
1416 | ||
1417 | *vpos = row->y; | |
1418 | *hpos = lastcol + 1; | |
1419 | return 0; | |
1420 | } | |
1421 | ||
1422 | /* Take proper action when mouse has moved to the mode or top line of | |
1423 | window W, x-position X. MODE_LINE_P non-zero means mouse is on the | |
1424 | mode line. X is relative to the start of the text display area of | |
1425 | W, so the width of bitmap areas and scroll bars must be subtracted | |
1426 | to get a position relative to the start of the mode line. */ | |
1427 | static void | |
1428 | IT_note_mode_line_highlight (struct window *w, int x, int mode_line_p) | |
1429 | { | |
1430 | struct frame *f = XFRAME (w->frame); | |
1431 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
1432 | struct glyph_row *row; | |
1433 | ||
1434 | if (mode_line_p) | |
1435 | row = MATRIX_MODE_LINE_ROW (w->current_matrix); | |
1436 | else | |
1437 | row = MATRIX_HEADER_LINE_ROW (w->current_matrix); | |
1438 | ||
1439 | if (row->enabled_p) | |
1440 | { | |
1441 | extern Lisp_Object Qhelp_echo; | |
1442 | struct glyph *glyph, *end; | |
1443 | Lisp_Object help, map; | |
1444 | ||
1445 | /* Find the glyph under X. */ | |
1446 | glyph = row->glyphs[TEXT_AREA] | |
1447 | + x - FRAME_LEFT_SCROLL_BAR_WIDTH (f) * CANON_X_UNIT (f); | |
1448 | end = glyph + row->used[TEXT_AREA]; | |
1449 | if (glyph < end | |
1450 | && STRINGP (glyph->object) | |
1451 | && XSTRING (glyph->object)->intervals | |
1452 | && glyph->charpos >= 0 | |
1453 | && glyph->charpos < XSTRING (glyph->object)->size) | |
1454 | { | |
1455 | /* If we're on a string with `help-echo' text property, | |
1456 | arrange for the help to be displayed. This is done by | |
1457 | setting the global variable help_echo to the help string. */ | |
1458 | help = Fget_text_property (make_number (glyph->charpos), | |
1459 | Qhelp_echo, glyph->object); | |
b7e80413 | 1460 | if (!NILP (help)) |
48c14970 EZ |
1461 | { |
1462 | help_echo = help; | |
1463 | XSETWINDOW (help_echo_window, w); | |
1464 | help_echo_object = glyph->object; | |
1465 | help_echo_pos = glyph->charpos; | |
1466 | } | |
41ad069b EZ |
1467 | } |
1468 | } | |
1469 | } | |
1470 | ||
1471 | /* Take proper action when the mouse has moved to position X, Y on | |
1472 | frame F as regards highlighting characters that have mouse-face | |
1473 | properties. Also de-highlighting chars where the mouse was before. | |
1474 | X and Y can be negative or out of range. */ | |
1475 | static void | |
1476 | IT_note_mouse_highlight (struct frame *f, int x, int y) | |
1477 | { | |
1478 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
440ffd67 | 1479 | int portion = -1; |
41ad069b EZ |
1480 | Lisp_Object window; |
1481 | struct window *w; | |
1482 | ||
1483 | /* When a menu is active, don't highlight because this looks odd. */ | |
1484 | if (mouse_preempted) | |
1485 | return; | |
1486 | ||
515d0d0e EZ |
1487 | if (disable_mouse_highlight |
1488 | || !f->glyphs_initialized_p) | |
41ad069b EZ |
1489 | return; |
1490 | ||
1491 | dpyinfo->mouse_face_mouse_x = x; | |
1492 | dpyinfo->mouse_face_mouse_y = y; | |
1493 | dpyinfo->mouse_face_mouse_frame = f; | |
1494 | ||
1495 | if (dpyinfo->mouse_face_defer) | |
1496 | return; | |
1497 | ||
1498 | if (gc_in_progress) | |
1499 | { | |
1500 | dpyinfo->mouse_face_deferred_gc = 1; | |
1501 | return; | |
1502 | } | |
1503 | ||
1504 | /* Which window is that in? */ | |
1505 | window = window_from_coordinates (f, x, y, &portion, 0); | |
1506 | ||
1507 | /* If we were displaying active text in another window, clear that. */ | |
1508 | if (! EQ (window, dpyinfo->mouse_face_window)) | |
1509 | clear_mouse_face (dpyinfo); | |
1510 | ||
1511 | /* Not on a window -> return. */ | |
1512 | if (!WINDOWP (window)) | |
1513 | return; | |
1514 | ||
1515 | /* Convert to window-relative coordinates. */ | |
1516 | w = XWINDOW (window); | |
1517 | x -= WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w); | |
1518 | y -= WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w); | |
1519 | ||
1520 | if (portion == 1 || portion == 3) | |
1521 | { | |
1522 | /* Mouse is on the mode or top line. */ | |
1523 | IT_note_mode_line_highlight (w, x, portion == 1); | |
1524 | return; | |
1525 | } | |
1526 | else | |
1527 | IT_set_mouse_pointer (0); | |
1528 | ||
1529 | /* Are we in a window whose display is up to date? | |
1530 | And verify the buffer's text has not changed. */ | |
1531 | if (/* Within text portion of the window. */ | |
1532 | portion == 0 | |
1533 | && EQ (w->window_end_valid, w->buffer) | |
1534 | && XFASTINT (w->last_modified) == BUF_MODIFF (XBUFFER (w->buffer)) | |
1535 | && (XFASTINT (w->last_overlay_modified) | |
1536 | == BUF_OVERLAY_MODIFF (XBUFFER (w->buffer)))) | |
1537 | { | |
440ffd67 | 1538 | int pos, i; |
41ad069b EZ |
1539 | struct glyph_row *row; |
1540 | struct glyph *glyph; | |
440ffd67 | 1541 | int nrows = w->current_matrix->nrows; |
41ad069b EZ |
1542 | |
1543 | /* Find the glyph under X/Y. */ | |
1544 | glyph = NULL; | |
440ffd67 | 1545 | if (y >= 0 && y < nrows) |
41ad069b EZ |
1546 | { |
1547 | row = MATRIX_ROW (w->current_matrix, y); | |
440ffd67 EZ |
1548 | /* Give up if some row before the one we are looking for is |
1549 | not enabled. */ | |
1550 | for (i = 0; i <= y; i++) | |
1551 | if (!MATRIX_ROW (w->current_matrix, i)->enabled_p) | |
1552 | break; | |
1553 | if (i > y /* all rows upto and including the one at Y are enabled */ | |
41ad069b EZ |
1554 | && row->displays_text_p |
1555 | && x < window_box_width (w, TEXT_AREA)) | |
1556 | { | |
1557 | glyph = row->glyphs[TEXT_AREA]; | |
1558 | if (x >= row->used[TEXT_AREA]) | |
1559 | glyph = NULL; | |
1560 | else | |
1561 | { | |
1562 | glyph += x; | |
1563 | if (!BUFFERP (glyph->object)) | |
1564 | glyph = NULL; | |
1565 | } | |
1566 | } | |
1567 | } | |
1568 | ||
1569 | /* Clear mouse face if X/Y not over text. */ | |
1570 | if (glyph == NULL) | |
1571 | { | |
1572 | clear_mouse_face (dpyinfo); | |
1573 | return; | |
1574 | } | |
1575 | ||
1576 | if (!BUFFERP (glyph->object)) | |
1577 | abort (); | |
1578 | pos = glyph->charpos; | |
1579 | ||
1580 | /* Check for mouse-face and help-echo. */ | |
1581 | { | |
1582 | extern Lisp_Object Qmouse_face; | |
1583 | Lisp_Object mouse_face, overlay, position; | |
1584 | Lisp_Object *overlay_vec; | |
1585 | int len, noverlays; | |
1586 | struct buffer *obuf; | |
1587 | int obegv, ozv; | |
1588 | ||
1589 | /* If we get an out-of-range value, return now; avoid an error. */ | |
1590 | if (pos > BUF_Z (XBUFFER (w->buffer))) | |
1591 | return; | |
1592 | ||
1593 | /* Make the window's buffer temporarily current for | |
1594 | overlays_at and compute_char_face. */ | |
1595 | obuf = current_buffer; | |
1596 | current_buffer = XBUFFER (w->buffer); | |
1597 | obegv = BEGV; | |
1598 | ozv = ZV; | |
1599 | BEGV = BEG; | |
1600 | ZV = Z; | |
1601 | ||
1602 | /* Is this char mouse-active or does it have help-echo? */ | |
1603 | XSETINT (position, pos); | |
1604 | ||
1605 | /* Put all the overlays we want in a vector in overlay_vec. | |
1606 | Store the length in len. If there are more than 10, make | |
1607 | enough space for all, and try again. */ | |
1608 | len = 10; | |
1609 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
99cd7364 | 1610 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, NULL, NULL, 0); |
41ad069b EZ |
1611 | if (noverlays > len) |
1612 | { | |
1613 | len = noverlays; | |
1614 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
99cd7364 EZ |
1615 | noverlays = overlays_at (pos, |
1616 | 0, &overlay_vec, &len, NULL, NULL, 0); | |
41ad069b EZ |
1617 | } |
1618 | ||
f0a4139c | 1619 | /* Sort overlays into increasing priority order. */ |
41ad069b EZ |
1620 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
1621 | ||
1622 | /* Check mouse-face highlighting. */ | |
1623 | if (! (EQ (window, dpyinfo->mouse_face_window) | |
1624 | && y >= dpyinfo->mouse_face_beg_row | |
1625 | && y <= dpyinfo->mouse_face_end_row | |
1626 | && (y > dpyinfo->mouse_face_beg_row | |
1627 | || x >= dpyinfo->mouse_face_beg_col) | |
1628 | && (y < dpyinfo->mouse_face_end_row | |
1629 | || x < dpyinfo->mouse_face_end_col | |
1630 | || dpyinfo->mouse_face_past_end))) | |
1631 | { | |
1632 | /* Clear the display of the old active region, if any. */ | |
1633 | clear_mouse_face (dpyinfo); | |
1634 | ||
1635 | /* Find highest priority overlay that has a mouse-face prop. */ | |
1636 | overlay = Qnil; | |
f0a4139c | 1637 | for (i = noverlays - 1; i >= 0; --i) |
41ad069b EZ |
1638 | { |
1639 | mouse_face = Foverlay_get (overlay_vec[i], Qmouse_face); | |
1640 | if (!NILP (mouse_face)) | |
1641 | { | |
1642 | overlay = overlay_vec[i]; | |
1643 | break; | |
1644 | } | |
1645 | } | |
1646 | ||
1647 | /* If no overlay applies, get a text property. */ | |
1648 | if (NILP (overlay)) | |
1649 | mouse_face = Fget_text_property (position, Qmouse_face, | |
1650 | w->buffer); | |
1651 | ||
1652 | /* Handle the overlay case. */ | |
1653 | if (! NILP (overlay)) | |
1654 | { | |
1655 | /* Find the range of text around this char that | |
1656 | should be active. */ | |
1657 | Lisp_Object before, after; | |
1658 | int ignore; | |
1659 | ||
1660 | before = Foverlay_start (overlay); | |
1661 | after = Foverlay_end (overlay); | |
1662 | /* Record this as the current active region. */ | |
1663 | fast_find_position (w, XFASTINT (before), | |
1664 | &dpyinfo->mouse_face_beg_col, | |
1665 | &dpyinfo->mouse_face_beg_row); | |
1666 | dpyinfo->mouse_face_past_end | |
1667 | = !fast_find_position (w, XFASTINT (after), | |
1668 | &dpyinfo->mouse_face_end_col, | |
1669 | &dpyinfo->mouse_face_end_row); | |
1670 | dpyinfo->mouse_face_window = window; | |
1671 | dpyinfo->mouse_face_face_id | |
1672 | = face_at_buffer_position (w, pos, 0, 0, | |
1673 | &ignore, pos + 1, 1); | |
1674 | ||
1675 | /* Display it as active. */ | |
1676 | show_mouse_face (dpyinfo, 1); | |
1677 | } | |
1678 | /* Handle the text property case. */ | |
1679 | else if (! NILP (mouse_face)) | |
1680 | { | |
1681 | /* Find the range of text around this char that | |
1682 | should be active. */ | |
1683 | Lisp_Object before, after, beginning, end; | |
1684 | int ignore; | |
1685 | ||
1686 | beginning = Fmarker_position (w->start); | |
1687 | XSETINT (end, (BUF_Z (XBUFFER (w->buffer)) | |
1688 | - XFASTINT (w->window_end_pos))); | |
1689 | before | |
1690 | = Fprevious_single_property_change (make_number (pos + 1), | |
1691 | Qmouse_face, | |
1692 | w->buffer, beginning); | |
1693 | after | |
1694 | = Fnext_single_property_change (position, Qmouse_face, | |
1695 | w->buffer, end); | |
1696 | /* Record this as the current active region. */ | |
1697 | fast_find_position (w, XFASTINT (before), | |
1698 | &dpyinfo->mouse_face_beg_col, | |
1699 | &dpyinfo->mouse_face_beg_row); | |
1700 | dpyinfo->mouse_face_past_end | |
1701 | = !fast_find_position (w, XFASTINT (after), | |
1702 | &dpyinfo->mouse_face_end_col, | |
1703 | &dpyinfo->mouse_face_end_row); | |
1704 | dpyinfo->mouse_face_window = window; | |
1705 | dpyinfo->mouse_face_face_id | |
1706 | = face_at_buffer_position (w, pos, 0, 0, | |
1707 | &ignore, pos + 1, 1); | |
1708 | ||
1709 | /* Display it as active. */ | |
1710 | show_mouse_face (dpyinfo, 1); | |
1711 | } | |
1712 | } | |
1713 | ||
1714 | /* Look for a `help-echo' property. */ | |
1715 | { | |
1716 | Lisp_Object help; | |
1717 | extern Lisp_Object Qhelp_echo; | |
1718 | ||
1719 | /* Check overlays first. */ | |
1720 | help = Qnil; | |
f0a4139c EZ |
1721 | for (i = noverlays - 1; i >= 0 && NILP (help); --i) |
1722 | { | |
1723 | overlay = overlay_vec[i]; | |
1724 | help = Foverlay_get (overlay, Qhelp_echo); | |
1725 | } | |
41ad069b | 1726 | |
b7e80413 | 1727 | if (!NILP (help)) |
48c14970 EZ |
1728 | { |
1729 | help_echo = help; | |
1730 | help_echo_window = window; | |
f0a4139c | 1731 | help_echo_object = overlay; |
48c14970 EZ |
1732 | help_echo_pos = pos; |
1733 | } | |
1734 | /* Try text properties. */ | |
1735 | else if (NILP (help) | |
1736 | && ((STRINGP (glyph->object) | |
1737 | && glyph->charpos >= 0 | |
1738 | && glyph->charpos < XSTRING (glyph->object)->size) | |
1739 | || (BUFFERP (glyph->object) | |
1740 | && glyph->charpos >= BEGV | |
1741 | && glyph->charpos < ZV))) | |
1742 | { | |
1743 | help = Fget_text_property (make_number (glyph->charpos), | |
1744 | Qhelp_echo, glyph->object); | |
1745 | if (!NILP (help)) | |
1746 | { | |
1747 | help_echo = help; | |
1748 | help_echo_window = window; | |
1749 | help_echo_object = glyph->object; | |
1750 | help_echo_pos = glyph->charpos; | |
1751 | } | |
1752 | } | |
41ad069b EZ |
1753 | } |
1754 | ||
1755 | BEGV = obegv; | |
1756 | ZV = ozv; | |
1757 | current_buffer = obuf; | |
1758 | } | |
1759 | } | |
1760 | } | |
1761 | ||
71f65669 EZ |
1762 | static void |
1763 | IT_clear_end_of_line (int first_unused) | |
f32d4091 KS |
1764 | { |
1765 | char *spaces, *sp; | |
1766 | int i, j; | |
039274cf | 1767 | int offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 EZ |
1768 | extern int fatal_error_in_progress; |
1769 | ||
2d764c78 | 1770 | if (new_pos_X >= first_unused || fatal_error_in_progress) |
aa9ce936 | 1771 | return; |
f32d4091 KS |
1772 | |
1773 | IT_set_face (0); | |
2d764c78 | 1774 | i = (j = first_unused - new_pos_X) * 2; |
e25d9653 EZ |
1775 | if (termscript) |
1776 | fprintf (termscript, "<CLR:EOL[%d..%d)>", new_pos_X, first_unused); | |
f32d4091 | 1777 | spaces = sp = alloca (i); |
aee81730 | 1778 | |
f32d4091 | 1779 | while (--j >= 0) |
aee81730 | 1780 | { |
f32d4091 KS |
1781 | *sp++ = ' '; |
1782 | *sp++ = ScreenAttrib; | |
aee81730 RS |
1783 | } |
1784 | ||
f32d4091 | 1785 | mouse_off_maybe (); |
039274cf EZ |
1786 | dosmemput (spaces, i, (int)ScreenPrimary + offset); |
1787 | if (screen_virtual_segment) | |
1788 | dosv_refresh_virtual_screen (offset, i / 2); | |
2d764c78 EZ |
1789 | |
1790 | /* clear_end_of_line_raw on term.c leaves the cursor at first_unused. | |
1791 | Let's follow their lead, in case someone relies on this. */ | |
1792 | new_pos_X = first_unused; | |
aee81730 RS |
1793 | } |
1794 | ||
71f65669 | 1795 | static void |
f32d4091 KS |
1796 | IT_clear_screen (void) |
1797 | { | |
1798 | if (termscript) | |
1799 | fprintf (termscript, "<CLR:SCR>"); | |
1800 | IT_set_face (0); | |
1801 | mouse_off (); | |
1802 | ScreenClear (); | |
039274cf EZ |
1803 | if (screen_virtual_segment) |
1804 | dosv_refresh_virtual_screen (0, screen_size); | |
f32d4091 KS |
1805 | new_pos_X = new_pos_Y = 0; |
1806 | } | |
1807 | ||
71f65669 | 1808 | static void |
f32d4091 KS |
1809 | IT_clear_to_end (void) |
1810 | { | |
1811 | if (termscript) | |
1812 | fprintf (termscript, "<CLR:EOS>"); | |
1813 | ||
1814 | while (new_pos_Y < screen_size_Y) { | |
1815 | new_pos_X = 0; | |
e25d9653 | 1816 | IT_clear_end_of_line (screen_size_X); |
f32d4091 KS |
1817 | new_pos_Y++; |
1818 | } | |
1819 | } | |
1820 | ||
71f65669 | 1821 | static void |
f32d4091 KS |
1822 | IT_cursor_to (int y, int x) |
1823 | { | |
1824 | if (termscript) | |
1825 | fprintf (termscript, "\n<XY=%dx%d>", x, y); | |
1826 | new_pos_X = x; | |
1827 | new_pos_Y = y; | |
1828 | } | |
1829 | ||
fc171623 KH |
1830 | static int cursor_cleared; |
1831 | ||
d1d5dc19 | 1832 | static void |
fc171623 KH |
1833 | IT_display_cursor (int on) |
1834 | { | |
1835 | if (on && cursor_cleared) | |
1836 | { | |
1837 | ScreenSetCursor (current_pos_Y, current_pos_X); | |
1838 | cursor_cleared = 0; | |
1839 | } | |
1840 | else if (!on && !cursor_cleared) | |
1841 | { | |
1842 | ScreenSetCursor (-1, -1); | |
1843 | cursor_cleared = 1; | |
1844 | } | |
1845 | } | |
1846 | ||
1847 | /* Emacs calls cursor-movement functions a lot when it updates the | |
1848 | display (probably a legacy of old terminals where you cannot | |
1849 | update a screen line without first moving the cursor there). | |
1850 | However, cursor movement is expensive on MSDOS (it calls a slow | |
1851 | BIOS function and requires 2 mode switches), while actual screen | |
1852 | updates access the video memory directly and don't depend on | |
1853 | cursor position. To avoid slowing down the redisplay, we cheat: | |
1854 | all functions that move the cursor only set internal variables | |
1855 | which record the cursor position, whereas the cursor is only | |
1856 | moved to its final position whenever screen update is complete. | |
1857 | ||
1858 | `IT_cmgoto' is called from the keyboard reading loop and when the | |
1859 | frame update is complete. This means that we are ready for user | |
1860 | input, so we update the cursor position to show where the point is, | |
1861 | and also make the mouse pointer visible. | |
1862 | ||
1863 | Special treatment is required when the cursor is in the echo area, | |
1864 | to put the cursor at the end of the text displayed there. */ | |
1865 | ||
71f65669 EZ |
1866 | static void |
1867 | IT_cmgoto (FRAME_PTR f) | |
fc171623 KH |
1868 | { |
1869 | /* Only set the cursor to where it should be if the display is | |
1870 | already in sync with the window contents. */ | |
2d764c78 EZ |
1871 | int update_cursor_pos = 1; /* MODIFF == unchanged_modified; */ |
1872 | ||
1873 | /* FIXME: This needs to be rewritten for the new redisplay, or | |
1874 | removed. */ | |
1875 | #if 0 | |
06da1de1 EZ |
1876 | static int previous_pos_X = -1; |
1877 | ||
2d764c78 EZ |
1878 | update_cursor_pos = 1; /* temporary!!! */ |
1879 | ||
06da1de1 EZ |
1880 | /* If the display is in sync, forget any previous knowledge about |
1881 | cursor position. This is primarily for unexpected events like | |
1882 | C-g in the minibuffer. */ | |
1883 | if (update_cursor_pos && previous_pos_X >= 0) | |
1884 | previous_pos_X = -1; | |
1885 | /* If we are in the echo area, put the cursor at the | |
1886 | end of the echo area message. */ | |
fc171623 KH |
1887 | if (!update_cursor_pos |
1888 | && XFASTINT (XWINDOW (FRAME_MINIBUF_WINDOW (f))->top) <= new_pos_Y) | |
1889 | { | |
06da1de1 EZ |
1890 | int tem_X = current_pos_X, dummy; |
1891 | ||
1892 | if (echo_area_glyphs) | |
1893 | { | |
1894 | tem_X = echo_area_glyphs_length; | |
1895 | /* Save current cursor position, to be restored after the | |
1896 | echo area message is erased. Only remember one level | |
1897 | of previous cursor position. */ | |
1898 | if (previous_pos_X == -1) | |
1899 | ScreenGetCursor (&dummy, &previous_pos_X); | |
1900 | } | |
1901 | else if (previous_pos_X >= 0) | |
1902 | { | |
1903 | /* We wind up here after the echo area message is erased. | |
1904 | Restore the cursor position we remembered above. */ | |
1905 | tem_X = previous_pos_X; | |
1906 | previous_pos_X = -1; | |
1907 | } | |
9a599a60 | 1908 | |
06da1de1 | 1909 | if (current_pos_X != tem_X) |
9a599a60 EZ |
1910 | { |
1911 | new_pos_X = tem_X; | |
1912 | update_cursor_pos = 1; | |
1913 | } | |
fc171623 | 1914 | } |
2d764c78 | 1915 | #endif |
fc171623 KH |
1916 | |
1917 | if (update_cursor_pos | |
1918 | && (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y)) | |
1919 | { | |
1920 | ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X); | |
1921 | if (termscript) | |
1922 | fprintf (termscript, "\n<CURSOR:%dx%d>", current_pos_X, current_pos_Y); | |
1923 | } | |
1924 | ||
1925 | /* Maybe cursor is invisible, so make it visible. */ | |
1926 | IT_display_cursor (1); | |
1927 | ||
1928 | /* Mouse pointer should be always visible if we are waiting for | |
1929 | keyboard input. */ | |
1930 | if (!mouse_visible) | |
1931 | mouse_on (); | |
1932 | } | |
1933 | ||
71f65669 | 1934 | static void |
41ad069b | 1935 | IT_update_begin (struct frame *f) |
f32d4091 | 1936 | { |
41ad069b | 1937 | struct display_info *display_info = FRAME_X_DISPLAY_INFO (f); |
b9f80d41 | 1938 | struct frame *mouse_face_frame = display_info->mouse_face_mouse_frame; |
41ad069b EZ |
1939 | |
1940 | BLOCK_INPUT; | |
1941 | ||
b9f80d41 | 1942 | if (f && f == mouse_face_frame) |
41ad069b EZ |
1943 | { |
1944 | /* Don't do highlighting for mouse motion during the update. */ | |
1945 | display_info->mouse_face_defer = 1; | |
1946 | ||
1947 | /* If F needs to be redrawn, simply forget about any prior mouse | |
1948 | highlighting. */ | |
1949 | if (FRAME_GARBAGED_P (f)) | |
1950 | display_info->mouse_face_window = Qnil; | |
1951 | ||
1952 | /* Can we tell that this update does not affect the window | |
1953 | where the mouse highlight is? If so, no need to turn off. | |
48c14970 EZ |
1954 | Likewise, don't do anything if none of the enabled rows |
1955 | contains glyphs highlighted in mouse face. */ | |
8ccb9a54 EZ |
1956 | if (!NILP (display_info->mouse_face_window) |
1957 | && WINDOWP (display_info->mouse_face_window)) | |
41ad069b EZ |
1958 | { |
1959 | struct window *w = XWINDOW (display_info->mouse_face_window); | |
1960 | int i; | |
1961 | ||
8ccb9a54 EZ |
1962 | /* If the mouse highlight is in the window that was deleted |
1963 | (e.g., if it was popped by completion), clear highlight | |
1964 | unconditionally. */ | |
1965 | if (NILP (w->buffer)) | |
1966 | display_info->mouse_face_window = Qnil; | |
1967 | else | |
1968 | { | |
1969 | for (i = 0; i < w->desired_matrix->nrows; ++i) | |
48c14970 EZ |
1970 | if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i) |
1971 | && MATRIX_ROW (w->current_matrix, i)->mouse_face_p) | |
8ccb9a54 EZ |
1972 | break; |
1973 | } | |
41ad069b | 1974 | |
8ccb9a54 | 1975 | if (NILP (w->buffer) || i < w->desired_matrix->nrows) |
41ad069b EZ |
1976 | clear_mouse_face (display_info); |
1977 | } | |
1978 | } | |
b9f80d41 | 1979 | else if (mouse_face_frame && !FRAME_LIVE_P (mouse_face_frame)) |
41ad069b EZ |
1980 | { |
1981 | /* If the frame with mouse highlight was deleted, invalidate the | |
1982 | highlight info. */ | |
1983 | display_info->mouse_face_beg_row = display_info->mouse_face_beg_col = -1; | |
1984 | display_info->mouse_face_end_row = display_info->mouse_face_end_col = -1; | |
1985 | display_info->mouse_face_window = Qnil; | |
1986 | display_info->mouse_face_deferred_gc = 0; | |
1987 | display_info->mouse_face_mouse_frame = NULL; | |
1988 | } | |
1989 | ||
1990 | UNBLOCK_INPUT; | |
f32d4091 KS |
1991 | } |
1992 | ||
71f65669 | 1993 | static void |
41ad069b | 1994 | IT_update_end (struct frame *f) |
f32d4091 | 1995 | { |
41ad069b EZ |
1996 | FRAME_X_DISPLAY_INFO (f)->mouse_face_defer = 0; |
1997 | } | |
1998 | ||
8ba01a32 EZ |
1999 | Lisp_Object Qcursor_type; |
2000 | ||
41ad069b EZ |
2001 | static void |
2002 | IT_frame_up_to_date (struct frame *f) | |
2003 | { | |
2004 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
0c3cfc51 EZ |
2005 | Lisp_Object new_cursor, frame_desired_cursor; |
2006 | struct window *sw; | |
41ad069b EZ |
2007 | |
2008 | if (dpyinfo->mouse_face_deferred_gc | |
b9f80d41 | 2009 | || (f && f == dpyinfo->mouse_face_mouse_frame)) |
41ad069b EZ |
2010 | { |
2011 | BLOCK_INPUT; | |
2012 | if (dpyinfo->mouse_face_mouse_frame) | |
2013 | IT_note_mouse_highlight (dpyinfo->mouse_face_mouse_frame, | |
2014 | dpyinfo->mouse_face_mouse_x, | |
2015 | dpyinfo->mouse_face_mouse_y); | |
2016 | dpyinfo->mouse_face_deferred_gc = 0; | |
2017 | UNBLOCK_INPUT; | |
2018 | } | |
2019 | ||
0c3cfc51 EZ |
2020 | /* Set the cursor type to whatever they wanted. In a minibuffer |
2021 | window, we want the cursor to appear only if we are reading input | |
2022 | from this window, and we want the cursor to be taken from the | |
2023 | frame parameters. For the selected window, we use either its | |
2024 | buffer-local value or the value from the frame parameters if the | |
2025 | buffer doesn't define its local value for the cursor type. */ | |
2026 | sw = XWINDOW (f->selected_window); | |
2027 | frame_desired_cursor = Fcdr (Fassq (Qcursor_type, f->param_alist)); | |
2028 | if (cursor_in_echo_area | |
2029 | && FRAME_HAS_MINIBUF_P (f) | |
2030 | && EQ (FRAME_MINIBUF_WINDOW (f), echo_area_window) | |
2031 | && sw == XWINDOW (echo_area_window)) | |
2032 | new_cursor = frame_desired_cursor; | |
2033 | else | |
2034 | { | |
2035 | struct buffer *b = XBUFFER (sw->buffer); | |
2036 | ||
2037 | if (EQ (b->cursor_type, Qt)) | |
2038 | new_cursor = frame_desired_cursor; | |
2039 | else if (NILP (b->cursor_type)) /* nil means no cursor */ | |
2040 | new_cursor = Fcons (Qbar, make_number (0)); | |
2041 | else | |
2042 | new_cursor = b->cursor_type; | |
2043 | } | |
2044 | ||
2045 | IT_set_cursor_type (f, new_cursor); | |
8ba01a32 | 2046 | |
41ad069b | 2047 | IT_cmgoto (f); /* position cursor when update is done */ |
f32d4091 | 2048 | } |
1b94449f | 2049 | |
c77f6f1b EZ |
2050 | /* Copy LEN glyphs displayed on a single line whose vertical position |
2051 | is YPOS, beginning at horizontal position XFROM to horizontal | |
2052 | position XTO, by moving blocks in the video memory. Used by | |
2053 | functions that insert and delete glyphs. */ | |
2054 | static void | |
2055 | IT_copy_glyphs (int xfrom, int xto, size_t len, int ypos) | |
2056 | { | |
2057 | /* The offsets of source and destination relative to the | |
2058 | conventional memorty selector. */ | |
2059 | int from = 2 * (xfrom + screen_size_X * ypos) + ScreenPrimary; | |
2060 | int to = 2 * (xto + screen_size_X * ypos) + ScreenPrimary; | |
2061 | ||
2062 | if (from == to || len <= 0) | |
2063 | return; | |
2064 | ||
2065 | _farsetsel (_dos_ds); | |
2066 | ||
2067 | /* The source and destination might overlap, so we need to move | |
2068 | glyphs non-destructively. */ | |
2069 | if (from > to) | |
2070 | { | |
2071 | for ( ; len; from += 2, to += 2, len--) | |
2072 | _farnspokew (to, _farnspeekw (from)); | |
2073 | } | |
2074 | else | |
2075 | { | |
2076 | from += (len - 1) * 2; | |
2077 | to += (len - 1) * 2; | |
2078 | for ( ; len; from -= 2, to -= 2, len--) | |
2079 | _farnspokew (to, _farnspeekw (from)); | |
2080 | } | |
2081 | if (screen_virtual_segment) | |
2082 | dosv_refresh_virtual_screen (ypos * screen_size_X * 2, screen_size_X); | |
2083 | } | |
2084 | ||
2085 | /* Insert and delete glyphs. */ | |
aa9ce936 EZ |
2086 | static void |
2087 | IT_insert_glyphs (start, len) | |
c77f6f1b | 2088 | register struct glyph *start; |
aa9ce936 EZ |
2089 | register int len; |
2090 | { | |
c77f6f1b EZ |
2091 | int shift_by_width = screen_size_X - (new_pos_X + len); |
2092 | ||
2093 | /* Shift right the glyphs from the nominal cursor position to the | |
2094 | end of this line. */ | |
2095 | IT_copy_glyphs (new_pos_X, new_pos_X + len, shift_by_width, new_pos_Y); | |
2096 | ||
2097 | /* Now write the glyphs to be inserted. */ | |
2098 | IT_write_glyphs (start, len); | |
aa9ce936 EZ |
2099 | } |
2100 | ||
2101 | static void | |
2102 | IT_delete_glyphs (n) | |
2103 | register int n; | |
2104 | { | |
2105 | abort (); | |
2106 | } | |
2107 | ||
211c7152 | 2108 | /* set-window-configuration on window.c needs this. */ |
3bb1f22f RS |
2109 | void |
2110 | x_set_menu_bar_lines (f, value, oldval) | |
2111 | struct frame *f; | |
2112 | Lisp_Object value, oldval; | |
2113 | { | |
211c7152 EZ |
2114 | set_menu_bar_lines (f, value, oldval); |
2115 | } | |
3bb1f22f | 2116 | |
984f5aaa | 2117 | /* This was copied from xfaces.c */ |
3bb1f22f | 2118 | |
984f5aaa EZ |
2119 | extern Lisp_Object Qbackground_color; |
2120 | extern Lisp_Object Qforeground_color; | |
8ba01a32 | 2121 | Lisp_Object Qreverse; |
211c7152 | 2122 | extern Lisp_Object Qtitle; |
3bb1f22f | 2123 | |
48ffe371 RS |
2124 | /* IT_set_terminal_modes is called when emacs is started, |
2125 | resumed, and whenever the screen is redrawn! */ | |
f32d4091 | 2126 | |
71f65669 | 2127 | static void |
f32d4091 KS |
2128 | IT_set_terminal_modes (void) |
2129 | { | |
aee81730 | 2130 | if (termscript) |
f32d4091 | 2131 | fprintf (termscript, "\n<SET_TERM>"); |
f32d4091 KS |
2132 | |
2133 | screen_size_X = ScreenCols (); | |
2134 | screen_size_Y = ScreenRows (); | |
2135 | screen_size = screen_size_X * screen_size_Y; | |
aee81730 | 2136 | |
f32d4091 KS |
2137 | new_pos_X = new_pos_Y = 0; |
2138 | current_pos_X = current_pos_Y = -1; | |
2139 | ||
2140 | if (term_setup_done) | |
2141 | return; | |
2142 | term_setup_done = 1; | |
aee81730 | 2143 | |
f32d4091 KS |
2144 | startup_screen_size_X = screen_size_X; |
2145 | startup_screen_size_Y = screen_size_Y; | |
c9adab25 | 2146 | startup_screen_attrib = ScreenAttrib; |
f32d4091 | 2147 | |
039274cf EZ |
2148 | #if __DJGPP__ > 1 |
2149 | /* Is DOS/V (or any other RSIS software which relocates | |
2150 | the screen) installed? */ | |
2151 | { | |
2152 | unsigned short es_value; | |
2153 | __dpmi_regs regs; | |
2154 | ||
2155 | regs.h.ah = 0xfe; /* get relocated screen address */ | |
2156 | if (ScreenPrimary == 0xb0000UL || ScreenPrimary == 0xb8000UL) | |
2157 | regs.x.es = (ScreenPrimary >> 4) & 0xffff; | |
2158 | else if (screen_old_address) /* already switched to Japanese mode once */ | |
2159 | regs.x.es = (screen_old_address >> 4) & 0xffff; | |
2160 | else | |
2161 | regs.x.es = ScreenMode () == 7 ? 0xb000 : 0xb800; | |
2162 | regs.x.di = 0; | |
2163 | es_value = regs.x.es; | |
2164 | __dpmi_int (0x10, ®s); | |
2165 | ||
d1d5dc19 | 2166 | if (regs.x.es != es_value) |
039274cf | 2167 | { |
d1d5dc19 EZ |
2168 | /* screen_old_address is only set if ScreenPrimary does NOT |
2169 | already point to the relocated buffer address returned by | |
2170 | the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets | |
2171 | ScreenPrimary to that address at startup under DOS/V. */ | |
2172 | if (regs.x.es != (ScreenPrimary >> 4) & 0xffff) | |
2173 | screen_old_address = ScreenPrimary; | |
039274cf EZ |
2174 | screen_virtual_segment = regs.x.es; |
2175 | screen_virtual_offset = regs.x.di; | |
2176 | ScreenPrimary = (screen_virtual_segment << 4) + screen_virtual_offset; | |
2177 | } | |
2178 | } | |
2179 | #endif /* __DJGPP__ > 1 */ | |
2180 | ||
f32d4091 KS |
2181 | ScreenGetCursor (&startup_pos_Y, &startup_pos_X); |
2182 | ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2)); | |
2183 | ||
2184 | if (termscript) | |
c9adab25 | 2185 | fprintf (termscript, "<SCREEN SAVED (dimensions=%dx%d)>\n", |
039274cf | 2186 | screen_size_X, screen_size_Y); |
76ac1508 RS |
2187 | |
2188 | bright_bg (); | |
f32d4091 KS |
2189 | } |
2190 | ||
48ffe371 RS |
2191 | /* IT_reset_terminal_modes is called when emacs is |
2192 | suspended or killed. */ | |
f32d4091 | 2193 | |
71f65669 | 2194 | static void |
f32d4091 KS |
2195 | IT_reset_terminal_modes (void) |
2196 | { | |
c9adab25 KH |
2197 | int display_row_start = (int) ScreenPrimary; |
2198 | int saved_row_len = startup_screen_size_X * 2; | |
2199 | int update_row_len = ScreenCols () * 2; | |
2200 | int current_rows = ScreenRows (); | |
2201 | int to_next_row = update_row_len; | |
2202 | unsigned char *saved_row = startup_screen_buffer; | |
2203 | int cursor_pos_X = ScreenCols () - 1; | |
2204 | int cursor_pos_Y = ScreenRows () - 1; | |
2205 | ||
f32d4091 | 2206 | if (termscript) |
5063b150 | 2207 | fprintf (termscript, "\n<RESET_TERM>"); |
f32d4091 | 2208 | |
f32d4091 KS |
2209 | if (!term_setup_done) |
2210 | return; | |
2211 | ||
c9adab25 | 2212 | mouse_off (); |
b36701cc RS |
2213 | |
2214 | /* Leave the video system in the same state as we found it, | |
2215 | as far as the blink/bright-background bit is concerned. */ | |
2216 | maybe_enable_blinking (); | |
06b1ea13 | 2217 | |
c9adab25 KH |
2218 | /* We have a situation here. |
2219 | We cannot just do ScreenUpdate(startup_screen_buffer) because | |
2220 | the luser could have changed screen dimensions inside Emacs | |
2221 | and failed (or didn't want) to restore them before killing | |
2222 | Emacs. ScreenUpdate() uses the *current* screen dimensions and | |
2223 | thus will happily use memory outside what was allocated for | |
2224 | `startup_screen_buffer'. | |
2225 | Thus we only restore as much as the current screen dimensions | |
2226 | can hold, and clear the rest (if the saved screen is smaller than | |
2227 | the current) with the color attribute saved at startup. The cursor | |
2228 | is also restored within the visible dimensions. */ | |
2229 | ||
2230 | ScreenAttrib = startup_screen_attrib; | |
c9adab25 | 2231 | |
06b1ea13 EZ |
2232 | /* Don't restore the screen if we are exiting less than 2 seconds |
2233 | after startup: we might be crashing, and the screen might show | |
2234 | some vital clues to what's wrong. */ | |
2235 | if (clock () - startup_time >= 2*CLOCKS_PER_SEC) | |
c9adab25 | 2236 | { |
06b1ea13 | 2237 | ScreenClear (); |
039274cf | 2238 | if (screen_virtual_segment) |
06b1ea13 EZ |
2239 | dosv_refresh_virtual_screen (0, screen_size); |
2240 | ||
2241 | if (update_row_len > saved_row_len) | |
2242 | update_row_len = saved_row_len; | |
2243 | if (current_rows > startup_screen_size_Y) | |
2244 | current_rows = startup_screen_size_Y; | |
2245 | ||
2246 | if (termscript) | |
2247 | fprintf (termscript, "<SCREEN RESTORED (dimensions=%dx%d)>\n", | |
2248 | update_row_len / 2, current_rows); | |
2249 | ||
2250 | while (current_rows--) | |
2251 | { | |
2252 | dosmemput (saved_row, update_row_len, display_row_start); | |
2253 | if (screen_virtual_segment) | |
2254 | dosv_refresh_virtual_screen (display_row_start - ScreenPrimary, | |
2255 | update_row_len / 2); | |
2256 | saved_row += saved_row_len; | |
2257 | display_row_start += to_next_row; | |
2258 | } | |
c9adab25 KH |
2259 | } |
2260 | if (startup_pos_X < cursor_pos_X) | |
2261 | cursor_pos_X = startup_pos_X; | |
2262 | if (startup_pos_Y < cursor_pos_Y) | |
2263 | cursor_pos_Y = startup_pos_Y; | |
2264 | ||
2265 | ScreenSetCursor (cursor_pos_Y, cursor_pos_X); | |
2266 | xfree (startup_screen_buffer); | |
f32d4091 KS |
2267 | |
2268 | term_setup_done = 0; | |
2269 | } | |
2270 | ||
71f65669 EZ |
2271 | static void |
2272 | IT_set_terminal_window (int foo) | |
f32d4091 KS |
2273 | { |
2274 | } | |
2275 | ||
2d764c78 EZ |
2276 | /* Remember the screen colors of the curent frame, to serve as the |
2277 | default colors for newly-created frames. */ | |
2278 | ||
2279 | static int initial_screen_colors[2]; | |
2280 | ||
2281 | DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors, | |
2282 | Smsdos_remember_default_colors, 1, 1, 0, | |
2283 | "Remember the screen colors of the current frame.") | |
2284 | (frame) | |
2285 | Lisp_Object frame; | |
2286 | { | |
2d764c78 EZ |
2287 | struct frame *f; |
2288 | ||
2289 | CHECK_FRAME (frame, 0); | |
2290 | f= XFRAME (frame); | |
2d764c78 | 2291 | |
ff12cd1d EZ |
2292 | /* This function is called after applying default-frame-alist to the |
2293 | initial frame. At that time, if reverse-colors option was | |
2294 | specified in default-frame-alist, it was already applied, and | |
2295 | frame colors are reversed. We need to account for that. */ | |
2296 | if (EQ (Fcdr (Fassq (Qreverse, f->param_alist)), Qt)) | |
2297 | { | |
2298 | initial_screen_colors[0] = FRAME_BACKGROUND_PIXEL (f); | |
2299 | initial_screen_colors[1] = FRAME_FOREGROUND_PIXEL (f); | |
2300 | } | |
2301 | else | |
2302 | { | |
2303 | initial_screen_colors[0] = FRAME_FOREGROUND_PIXEL (f); | |
2304 | initial_screen_colors[1] = FRAME_BACKGROUND_PIXEL (f); | |
2305 | } | |
2d764c78 EZ |
2306 | } |
2307 | ||
f32d4091 | 2308 | void |
3bb1f22f | 2309 | IT_set_frame_parameters (f, alist) |
c77f6f1b | 2310 | struct frame *f; |
f32d4091 KS |
2311 | Lisp_Object alist; |
2312 | { | |
2313 | Lisp_Object tail; | |
db722735 | 2314 | int length = XINT (Flength (alist)); |
2d764c78 | 2315 | int i, j; |
db722735 RS |
2316 | Lisp_Object *parms |
2317 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2318 | Lisp_Object *values | |
2319 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2d764c78 | 2320 | /* Do we have to reverse the foreground and background colors? */ |
8ba01a32 | 2321 | int reverse = EQ (Fcdr (Fassq (Qreverse, f->param_alist)), Qt); |
2d764c78 EZ |
2322 | int was_reverse = reverse; |
2323 | int redraw = 0, fg_set = 0, bg_set = 0; | |
546701f5 | 2324 | int need_to_reverse; |
2d764c78 EZ |
2325 | unsigned long orig_fg; |
2326 | unsigned long orig_bg; | |
546701f5 | 2327 | Lisp_Object frame_bg, frame_fg; |
53704a07 | 2328 | extern Lisp_Object Qdefault, QCforeground, QCbackground; |
2d764c78 EZ |
2329 | |
2330 | /* If we are creating a new frame, begin with the original screen colors | |
2331 | used for the initial frame. */ | |
2332 | if (alist == Vdefault_frame_alist | |
2333 | && initial_screen_colors[0] != -1 && initial_screen_colors[1] != -1) | |
2334 | { | |
2335 | FRAME_FOREGROUND_PIXEL (f) = initial_screen_colors[0]; | |
2336 | FRAME_BACKGROUND_PIXEL (f) = initial_screen_colors[1]; | |
2337 | } | |
2338 | orig_fg = FRAME_FOREGROUND_PIXEL (f); | |
2339 | orig_bg = FRAME_BACKGROUND_PIXEL (f); | |
546701f5 EZ |
2340 | frame_fg = Fcdr (Fassq (Qforeground_color, f->param_alist)); |
2341 | frame_bg = Fcdr (Fassq (Qbackground_color, f->param_alist)); | |
2342 | /* frame_fg and frame_bg could be nil if, for example, | |
2343 | f->param_alist is nil, e.g. if we are called from | |
2344 | Fmake_terminal_frame. */ | |
2345 | if (NILP (frame_fg)) | |
2346 | frame_fg = build_string (unspecified_fg); | |
2347 | if (NILP (frame_bg)) | |
2348 | frame_bg = build_string (unspecified_bg); | |
db722735 RS |
2349 | |
2350 | /* Extract parm names and values into those vectors. */ | |
2351 | i = 0; | |
f32d4091 KS |
2352 | for (tail = alist; CONSP (tail); tail = Fcdr (tail)) |
2353 | { | |
db722735 | 2354 | Lisp_Object elt; |
f32d4091 KS |
2355 | |
2356 | elt = Fcar (tail); | |
db722735 RS |
2357 | parms[i] = Fcar (elt); |
2358 | CHECK_SYMBOL (parms[i], 1); | |
2359 | values[i] = Fcdr (elt); | |
2360 | i++; | |
2361 | } | |
2362 | ||
2d764c78 | 2363 | j = i; |
db722735 | 2364 | |
2d764c78 EZ |
2365 | for (i = 0; i < j; i++) |
2366 | { | |
1e21fe48 EZ |
2367 | Lisp_Object prop, val; |
2368 | ||
2369 | prop = parms[i]; | |
2370 | val = values[i]; | |
2d764c78 | 2371 | |
8ba01a32 | 2372 | if (EQ (prop, Qreverse)) |
2d764c78 EZ |
2373 | reverse = EQ (val, Qt); |
2374 | } | |
546701f5 EZ |
2375 | |
2376 | need_to_reverse = reverse && !was_reverse; | |
2377 | if (termscript && need_to_reverse) | |
2d764c78 EZ |
2378 | fprintf (termscript, "<INVERSE-VIDEO>\n"); |
2379 | ||
2380 | /* Now process the alist elements in reverse of specified order. */ | |
db722735 RS |
2381 | for (i--; i >= 0; i--) |
2382 | { | |
1e21fe48 EZ |
2383 | Lisp_Object prop, val; |
2384 | Lisp_Object frame; | |
2385 | ||
2386 | prop = parms[i]; | |
2387 | val = values[i]; | |
f32d4091 | 2388 | |
4e825084 | 2389 | if (EQ (prop, Qforeground_color)) |
f32d4091 | 2390 | { |
546701f5 | 2391 | unsigned long new_color = load_color (f, NULL, val, need_to_reverse |
2d764c78 EZ |
2392 | ? LFACE_BACKGROUND_INDEX |
2393 | : LFACE_FOREGROUND_INDEX); | |
3b620731 EZ |
2394 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2395 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2396 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2397 | { |
546701f5 | 2398 | FRAME_FOREGROUND_PIXEL (f) = new_color; |
1e21fe48 EZ |
2399 | /* Make sure the foreground of the default face for this |
2400 | frame is changed as well. */ | |
2401 | XSETFRAME (frame, f); | |
546701f5 | 2402 | if (need_to_reverse) |
1e21fe48 | 2403 | { |
1e21fe48 EZ |
2404 | Finternal_set_lisp_face_attribute (Qdefault, QCbackground, |
2405 | val, frame); | |
546701f5 | 2406 | prop = Qbackground_color; |
ff12cd1d | 2407 | bg_set = 1; |
1e21fe48 | 2408 | } |
2d764c78 | 2409 | else |
1e21fe48 | 2410 | { |
1e21fe48 EZ |
2411 | Finternal_set_lisp_face_attribute (Qdefault, QCforeground, |
2412 | val, frame); | |
ff12cd1d | 2413 | fg_set = 1; |
1e21fe48 | 2414 | } |
f32d4091 | 2415 | redraw = 1; |
76ac1508 | 2416 | if (termscript) |
a7cf9151 | 2417 | fprintf (termscript, "<FGCOLOR %lu>\n", new_color); |
f32d4091 KS |
2418 | } |
2419 | } | |
4e825084 | 2420 | else if (EQ (prop, Qbackground_color)) |
f32d4091 | 2421 | { |
546701f5 | 2422 | unsigned long new_color = load_color (f, NULL, val, need_to_reverse |
2d764c78 EZ |
2423 | ? LFACE_FOREGROUND_INDEX |
2424 | : LFACE_BACKGROUND_INDEX); | |
3b620731 EZ |
2425 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2426 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2427 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2428 | { |
546701f5 | 2429 | FRAME_BACKGROUND_PIXEL (f) = new_color; |
1e21fe48 EZ |
2430 | /* Make sure the background of the default face for this |
2431 | frame is changed as well. */ | |
2432 | XSETFRAME (frame, f); | |
546701f5 | 2433 | if (need_to_reverse) |
1e21fe48 | 2434 | { |
1e21fe48 EZ |
2435 | Finternal_set_lisp_face_attribute (Qdefault, QCforeground, |
2436 | val, frame); | |
546701f5 | 2437 | prop = Qforeground_color; |
ff12cd1d | 2438 | fg_set = 1; |
1e21fe48 | 2439 | } |
2d764c78 | 2440 | else |
1e21fe48 | 2441 | { |
1e21fe48 EZ |
2442 | Finternal_set_lisp_face_attribute (Qdefault, QCbackground, |
2443 | val, frame); | |
ff12cd1d | 2444 | bg_set = 1; |
1e21fe48 | 2445 | } |
f32d4091 | 2446 | redraw = 1; |
76ac1508 | 2447 | if (termscript) |
a7cf9151 | 2448 | fprintf (termscript, "<BGCOLOR %lu>\n", new_color); |
f32d4091 KS |
2449 | } |
2450 | } | |
211c7152 EZ |
2451 | else if (EQ (prop, Qtitle)) |
2452 | { | |
2453 | x_set_title (f, val); | |
2454 | if (termscript) | |
2455 | fprintf (termscript, "<TITLE: %s>\n", XSTRING (val)->data); | |
2456 | } | |
8ba01a32 EZ |
2457 | else if (EQ (prop, Qcursor_type)) |
2458 | { | |
2459 | IT_set_cursor_type (f, val); | |
2460 | if (termscript) | |
2461 | fprintf (termscript, "<CTYPE: %s>\n", | |
2462 | EQ (val, Qbar) || CONSP (val) && EQ (XCAR (val), Qbar) | |
2463 | ? "bar" : "box"); | |
2464 | } | |
db722735 | 2465 | store_frame_param (f, prop, val); |
2d764c78 | 2466 | } |
db722735 | 2467 | |
2d764c78 EZ |
2468 | /* If they specified "reverse", but not the colors, we need to swap |
2469 | the current frame colors. */ | |
546701f5 | 2470 | if (need_to_reverse) |
2d764c78 | 2471 | { |
1e21fe48 EZ |
2472 | Lisp_Object frame; |
2473 | ||
2d764c78 EZ |
2474 | if (!fg_set) |
2475 | { | |
1e21fe48 | 2476 | XSETFRAME (frame, f); |
ff12cd1d EZ |
2477 | Finternal_set_lisp_face_attribute (Qdefault, QCforeground, |
2478 | tty_color_name (f, orig_bg), | |
53704a07 | 2479 | frame); |
2d764c78 EZ |
2480 | redraw = 1; |
2481 | } | |
2482 | if (!bg_set) | |
2483 | { | |
1e21fe48 | 2484 | XSETFRAME (frame, f); |
ff12cd1d EZ |
2485 | Finternal_set_lisp_face_attribute (Qdefault, QCbackground, |
2486 | tty_color_name (f, orig_fg), | |
53704a07 | 2487 | frame); |
2d764c78 EZ |
2488 | redraw = 1; |
2489 | } | |
f32d4091 KS |
2490 | } |
2491 | ||
2492 | if (redraw) | |
2493 | { | |
2d764c78 EZ |
2494 | face_change_count++; /* forces xdisp.c to recompute basic faces */ |
2495 | if (f == SELECTED_FRAME()) | |
3bb1f22f | 2496 | redraw_frame (f); |
f32d4091 KS |
2497 | } |
2498 | } | |
2499 | ||
a7cf9151 EZ |
2500 | extern void init_frame_faces (FRAME_PTR); |
2501 | ||
f32d4091 KS |
2502 | #endif /* !HAVE_X_WINDOWS */ |
2503 | ||
2504 | ||
48ffe371 RS |
2505 | /* Do we need the internal terminal? */ |
2506 | ||
f32d4091 KS |
2507 | void |
2508 | internal_terminal_init () | |
2509 | { | |
2510 | char *term = getenv ("TERM"); | |
2511 | char *colors; | |
2d764c78 | 2512 | struct frame *sf = SELECTED_FRAME(); |
f32d4091 KS |
2513 | |
2514 | #ifdef HAVE_X_WINDOWS | |
2515 | if (!inhibit_window_system) | |
2516 | return; | |
2517 | #endif | |
2518 | ||
2519 | internal_terminal | |
2520 | = (!noninteractive) && term && !strcmp (term, "internal"); | |
2521 | ||
2522 | if (getenv ("EMACSTEST")) | |
5063b150 | 2523 | termscript = fopen (getenv ("EMACSTEST"), "wt"); |
f32d4091 KS |
2524 | |
2525 | #ifndef HAVE_X_WINDOWS | |
2526 | if (!internal_terminal || inhibit_window_system) | |
2527 | { | |
2d764c78 | 2528 | sf->output_method = output_termcap; |
f32d4091 KS |
2529 | return; |
2530 | } | |
2531 | ||
2532 | Vwindow_system = intern ("pc"); | |
2533 | Vwindow_system_version = make_number (1); | |
2d764c78 | 2534 | sf->output_method = output_msdos_raw; |
039274cf EZ |
2535 | |
2536 | /* If Emacs was dumped on DOS/V machine, forget the stale VRAM address. */ | |
2537 | screen_old_address = 0; | |
2538 | ||
2d764c78 EZ |
2539 | /* Forget the stale screen colors as well. */ |
2540 | initial_screen_colors[0] = initial_screen_colors[1] = -1; | |
2541 | ||
f32d4091 KS |
2542 | bzero (&the_only_x_display, sizeof the_only_x_display); |
2543 | the_only_x_display.background_pixel = 7; /* White */ | |
2544 | the_only_x_display.foreground_pixel = 0; /* Black */ | |
76ac1508 | 2545 | bright_bg (); |
5063b150 | 2546 | colors = getenv ("EMACSCOLORS"); |
f32d4091 KS |
2547 | if (colors && strlen (colors) >= 2) |
2548 | { | |
76ac1508 RS |
2549 | /* The colors use 4 bits each (we enable bright background). */ |
2550 | if (isdigit (colors[0])) | |
2551 | colors[0] -= '0'; | |
2552 | else if (isxdigit (colors[0])) | |
2553 | colors[0] -= (isupper (colors[0]) ? 'A' : 'a') - 10; | |
1bd7b2c7 RS |
2554 | if (colors[0] >= 0 && colors[0] < 16) |
2555 | the_only_x_display.foreground_pixel = colors[0]; | |
76ac1508 RS |
2556 | if (isdigit (colors[1])) |
2557 | colors[1] -= '0'; | |
2558 | else if (isxdigit (colors[1])) | |
2559 | colors[1] -= (isupper (colors[1]) ? 'A' : 'a') - 10; | |
2560 | if (colors[1] >= 0 && colors[1] < 16) | |
1bd7b2c7 | 2561 | the_only_x_display.background_pixel = colors[1]; |
f32d4091 KS |
2562 | } |
2563 | the_only_x_display.line_height = 1; | |
64ec6a02 | 2564 | the_only_x_display.font = (XFontStruct *)1; /* must *not* be zero */ |
41ad069b EZ |
2565 | the_only_x_display.display_info.mouse_face_mouse_frame = NULL; |
2566 | the_only_x_display.display_info.mouse_face_deferred_gc = 0; | |
2567 | the_only_x_display.display_info.mouse_face_beg_row = | |
2568 | the_only_x_display.display_info.mouse_face_beg_col = -1; | |
2569 | the_only_x_display.display_info.mouse_face_end_row = | |
2570 | the_only_x_display.display_info.mouse_face_end_col = -1; | |
2571 | the_only_x_display.display_info.mouse_face_face_id = DEFAULT_FACE_ID; | |
2572 | the_only_x_display.display_info.mouse_face_window = Qnil; | |
2573 | the_only_x_display.display_info.mouse_face_mouse_x = | |
2574 | the_only_x_display.display_info.mouse_face_mouse_y = 0; | |
2575 | the_only_x_display.display_info.mouse_face_defer = 0; | |
f32d4091 | 2576 | |
2d764c78 | 2577 | init_frame_faces (sf); |
f32d4091 KS |
2578 | |
2579 | ring_bell_hook = IT_ring_bell; | |
aa9ce936 EZ |
2580 | insert_glyphs_hook = IT_insert_glyphs; |
2581 | delete_glyphs_hook = IT_delete_glyphs; | |
f32d4091 KS |
2582 | write_glyphs_hook = IT_write_glyphs; |
2583 | cursor_to_hook = raw_cursor_to_hook = IT_cursor_to; | |
2584 | clear_to_end_hook = IT_clear_to_end; | |
2585 | clear_end_of_line_hook = IT_clear_end_of_line; | |
2586 | clear_frame_hook = IT_clear_screen; | |
f32d4091 KS |
2587 | update_begin_hook = IT_update_begin; |
2588 | update_end_hook = IT_update_end; | |
41ad069b | 2589 | frame_up_to_date_hook = IT_frame_up_to_date; |
f32d4091 KS |
2590 | |
2591 | /* These hooks are called by term.c without being checked. */ | |
2592 | set_terminal_modes_hook = IT_set_terminal_modes; | |
2593 | reset_terminal_modes_hook = IT_reset_terminal_modes; | |
2594 | set_terminal_window_hook = IT_set_terminal_window; | |
c77f6f1b | 2595 | char_ins_del_ok = 0; |
f32d4091 KS |
2596 | #endif |
2597 | } | |
2598 | ||
2599 | dos_get_saved_screen (screen, rows, cols) | |
2600 | char **screen; | |
2601 | int *rows; | |
2602 | int *cols; | |
2603 | { | |
2604 | #ifndef HAVE_X_WINDOWS | |
2605 | *screen = startup_screen_buffer; | |
2606 | *cols = startup_screen_size_X; | |
2607 | *rows = startup_screen_size_Y; | |
039274cf | 2608 | return *screen != (char *)0; |
f32d4091 KS |
2609 | #else |
2610 | return 0; | |
2611 | #endif | |
2612 | } | |
3bb1f22f RS |
2613 | |
2614 | #ifndef HAVE_X_WINDOWS | |
2615 | ||
2616 | /* We are not X, but we can emulate it well enough for our needs... */ | |
2617 | void | |
2618 | check_x (void) | |
2619 | { | |
2d764c78 EZ |
2620 | if (! FRAME_MSDOS_P (SELECTED_FRAME())) |
2621 | error ("Not running under a window system"); | |
3bb1f22f RS |
2622 | } |
2623 | ||
2624 | #endif | |
2625 | ||
5063b150 | 2626 | \f |
f32d4091 KS |
2627 | /* ----------------------- Keyboard control ---------------------- |
2628 | * | |
2629 | * Keymaps reflect the following keyboard layout: | |
2630 | * | |
2631 | * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS | |
2632 | * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41) | |
2633 | * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET | |
2634 | * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT | |
2635 | * SPACE | |
2636 | */ | |
2637 | ||
d1d5dc19 EZ |
2638 | #define Ignore 0x0000 |
2639 | #define Normal 0x0000 /* normal key - alt changes scan-code */ | |
2640 | #define FctKey 0x1000 /* func key if c == 0, else c */ | |
2641 | #define Special 0x2000 /* func key even if c != 0 */ | |
2642 | #define ModFct 0x3000 /* special if mod-keys, else 'c' */ | |
2643 | #define Map 0x4000 /* alt scan-code, map to unshift/shift key */ | |
2644 | #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */ | |
2645 | #define Grey 0x6000 /* Grey keypad key */ | |
2646 | ||
2647 | #define Alt 0x0100 /* alt scan-code */ | |
2648 | #define Ctrl 0x0200 /* ctrl scan-code */ | |
2649 | #define Shift 0x0400 /* shift scan-code */ | |
2650 | ||
f32d4091 KS |
2651 | static int extended_kbd; /* 101 (102) keyboard present. */ |
2652 | ||
d1d5dc19 EZ |
2653 | struct kbd_translate { |
2654 | unsigned char sc; | |
2655 | unsigned char ch; | |
2656 | unsigned short code; | |
2657 | }; | |
2658 | ||
f32d4091 KS |
2659 | struct dos_keyboard_map |
2660 | { | |
2661 | char *unshifted; | |
2662 | char *shifted; | |
2663 | char *alt_gr; | |
d1d5dc19 | 2664 | struct kbd_translate *translate_table; |
f32d4091 KS |
2665 | }; |
2666 | ||
2667 | ||
2668 | static struct dos_keyboard_map us_keyboard = { | |
2669 | /* 0 1 2 3 4 5 */ | |
2670 | /* 01234567890123456789012345678901234567890 12345678901234 */ | |
2671 | "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ", | |
2672 | /* 0123456789012345678901234567890123456789 012345678901234 */ | |
2673 | "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ", | |
d1d5dc19 EZ |
2674 | 0, /* no Alt-Gr key */ |
2675 | 0 /* no translate table */ | |
f32d4091 KS |
2676 | }; |
2677 | ||
2678 | static struct dos_keyboard_map fr_keyboard = { | |
2679 | /* 0 1 2 3 4 5 */ | |
2680 | /* 012 3456789012345678901234567890123456789012345678901234 */ | |
2681 |