Commit | Line | Data |
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c6a6499f | 1 | /* MS-DOS specific C utilities. -*- coding: raw-text -*- |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, |
8cabe764 GM |
3 | 2003, 2004, 2005, 2006, 2007, 2008 |
4 | Free Software Foundation, Inc. | |
1b94449f RS |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
1b94449f | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
1b94449f RS |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
1b94449f | 20 | |
9da6e765 | 21 | /* Contributed by Morten Welinder */ |
f32d4091 | 22 | /* New display, keyboard, and mouse control by Kim F. Storm */ |
9da6e765 | 23 | |
1b94449f RS |
24 | /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */ |
25 | ||
48984716 | 26 | #include <config.h> |
1b94449f RS |
27 | |
28 | #ifdef MSDOS | |
29 | #include "lisp.h" | |
30 | #include <stdio.h> | |
31 | #include <stdlib.h> | |
06b1ea13 | 32 | #include <time.h> |
1b94449f RS |
33 | #include <sys/param.h> |
34 | #include <sys/time.h> | |
35 | #include <dos.h> | |
d21e67b5 | 36 | #include <errno.h> |
a7cf9151 | 37 | #include <string.h> /* for bzero and string functions */ |
d21e67b5 | 38 | #include <sys/stat.h> /* for _fixpath */ |
a7cf9151 | 39 | #include <unistd.h> /* for chdir, dup, dup2, etc. */ |
bf794306 | 40 | #include <dir.h> /* for getdisk */ |
1bd7b2c7 | 41 | #if __DJGPP__ >= 2 |
affa509c | 42 | #pragma pack(0) /* dir.h does a pack(4), which isn't GCC's default */ |
1bd7b2c7 | 43 | #include <fcntl.h> |
a7cf9151 | 44 | #include <io.h> /* for setmode */ |
fc171623 KH |
45 | #include <dpmi.h> /* for __dpmi_xxx stuff */ |
46 | #include <sys/farptr.h> /* for _farsetsel, _farnspokeb */ | |
d21e67b5 | 47 | #include <libc/dosio.h> /* for _USE_LFN */ |
a7cf9151 | 48 | #include <conio.h> /* for cputs */ |
1bd7b2c7 RS |
49 | #endif |
50 | ||
1b94449f RS |
51 | #include "msdos.h" |
52 | #include "systime.h" | |
3e1944a3 | 53 | #include "frame.h" |
1b94449f | 54 | #include "termhooks.h" |
aa9ce936 | 55 | #include "termchar.h" |
87485d6f | 56 | #include "dispextern.h" |
c77f6f1b | 57 | #include "dosfns.h" |
87485d6f | 58 | #include "termopts.h" |
83be827a | 59 | #include "character.h" |
aa9ce936 EZ |
60 | #include "coding.h" |
61 | #include "disptab.h" | |
87485d6f | 62 | #include "window.h" |
fc171623 KH |
63 | #include "buffer.h" |
64 | #include "commands.h" | |
41ad069b | 65 | #include "blockinput.h" |
97dd288b | 66 | #include "keyboard.h" |
6b61353c | 67 | #include "intervals.h" |
1b94449f RS |
68 | #include <go32.h> |
69 | #include <pc.h> | |
70 | #include <ctype.h> | |
71 | /* #include <process.h> */ | |
72 | /* Damn that local process.h! Instead we can define P_WAIT ourselves. */ | |
73 | #define P_WAIT 1 | |
74 | ||
d21e67b5 RS |
75 | #ifndef _USE_LFN |
76 | #define _USE_LFN 0 | |
77 | #endif | |
78 | ||
b36701cc RS |
79 | #ifndef _dos_ds |
80 | #define _dos_ds _go32_info_block.selector_for_linear_memory | |
81 | #endif | |
82 | ||
1bd7b2c7 RS |
83 | #if __DJGPP__ > 1 |
84 | ||
8748735b | 85 | #include <signal.h> |
417a04bb | 86 | #include "syssignal.h" |
8748735b | 87 | |
1bd7b2c7 RS |
88 | #ifndef SYSTEM_MALLOC |
89 | ||
90 | #ifdef GNU_MALLOC | |
91 | ||
92 | /* If other `malloc' than ours is used, force our `sbrk' behave like | |
93 | Unix programs expect (resize memory blocks to keep them contiguous). | |
94 | If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory, | |
95 | because that's what `gmalloc' expects to get. */ | |
96 | #include <crt0.h> | |
97 | ||
98 | #ifdef REL_ALLOC | |
99 | int _crt0_startup_flags = _CRT0_FLAG_UNIX_SBRK; | |
100 | #else /* not REL_ALLOC */ | |
101 | int _crt0_startup_flags = (_CRT0_FLAG_UNIX_SBRK | _CRT0_FLAG_FILL_SBRK_MEMORY); | |
102 | #endif /* not REL_ALLOC */ | |
103 | #endif /* GNU_MALLOC */ | |
104 | ||
105 | #endif /* not SYSTEM_MALLOC */ | |
106 | #endif /* __DJGPP__ > 1 */ | |
aee81730 RS |
107 | |
108 | static unsigned long | |
109 | event_timestamp () | |
110 | { | |
111 | struct time t; | |
112 | unsigned long s; | |
56e19ec4 | 113 | |
aee81730 RS |
114 | gettime (&t); |
115 | s = t.ti_min; | |
116 | s *= 60; | |
117 | s += t.ti_sec; | |
118 | s *= 1000; | |
119 | s += t.ti_hund * 10; | |
56e19ec4 | 120 | |
aee81730 RS |
121 | return s; |
122 | } | |
123 | ||
f32d4091 KS |
124 | \f |
125 | /* ------------------------ Mouse control --------------------------- | |
126 | * | |
127 | * Coordinates are in screen positions and zero based. | |
128 | * Mouse buttons are numbered from left to right and also zero based. | |
129 | */ | |
1b94449f | 130 | |
0c3cfc51 EZ |
131 | /* This used to be in termhooks.h, but mainstream Emacs code no longer |
132 | uses it, and it was removed... */ | |
133 | #define NUM_MOUSE_BUTTONS (5) | |
134 | ||
f32d4091 KS |
135 | int have_mouse; /* 0: no, 1: enabled, -1: disabled */ |
136 | static int mouse_visible; | |
1b94449f | 137 | |
f32d4091 KS |
138 | static int mouse_last_x; |
139 | static int mouse_last_y; | |
1b94449f | 140 | |
f32d4091 KS |
141 | static int mouse_button_translate[NUM_MOUSE_BUTTONS]; |
142 | static int mouse_button_count; | |
1b94449f | 143 | |
f32d4091 KS |
144 | void |
145 | mouse_on () | |
1b94449f | 146 | { |
1b94449f | 147 | union REGS regs; |
1b94449f | 148 | |
f32d4091 | 149 | if (have_mouse > 0 && !mouse_visible) |
1b94449f | 150 | { |
3e1944a3 EZ |
151 | struct tty_display_info *tty = CURTTY (); |
152 | ||
153 | if (tty->termscript) | |
154 | fprintf (tty->termscript, "<M_ON>"); | |
f32d4091 KS |
155 | regs.x.ax = 0x0001; |
156 | int86 (0x33, ®s, ®s); | |
157 | mouse_visible = 1; | |
1b94449f | 158 | } |
1b94449f RS |
159 | } |
160 | ||
f32d4091 KS |
161 | void |
162 | mouse_off () | |
1b94449f | 163 | { |
f32d4091 | 164 | union REGS regs; |
1b94449f | 165 | |
f32d4091 | 166 | if (have_mouse > 0 && mouse_visible) |
1b94449f | 167 | { |
3e1944a3 EZ |
168 | struct tty_display_info *tty = CURTTY (); |
169 | ||
170 | if (tty->termscript) | |
171 | fprintf (tty->termscript, "<M_OFF>"); | |
f32d4091 KS |
172 | regs.x.ax = 0x0002; |
173 | int86 (0x33, ®s, ®s); | |
174 | mouse_visible = 0; | |
1b94449f | 175 | } |
1b94449f RS |
176 | } |
177 | ||
8f190436 EZ |
178 | static void |
179 | mouse_setup_buttons (int n_buttons) | |
180 | { | |
181 | if (n_buttons == 3) | |
182 | { | |
183 | mouse_button_count = 3; | |
184 | mouse_button_translate[0] = 0; /* Left */ | |
185 | mouse_button_translate[1] = 2; /* Middle */ | |
186 | mouse_button_translate[2] = 1; /* Right */ | |
187 | } | |
188 | else /* two, what else? */ | |
189 | { | |
190 | mouse_button_count = 2; | |
191 | mouse_button_translate[0] = 0; | |
192 | mouse_button_translate[1] = 1; | |
193 | } | |
194 | } | |
195 | ||
196 | DEFUN ("msdos-set-mouse-buttons", Fmsdos_set_mouse_buttons, Smsdos_set_mouse_buttons, | |
197 | 1, 1, "NSet number of mouse buttons to: ", | |
70da46c3 PJ |
198 | doc: /* Set the number of mouse buttons to use by Emacs. |
199 | This is useful with mice that report the number of buttons inconsistently, | |
200 | e.g., if the number of buttons is reported as 3, but Emacs only sees 2 of | |
201 | them. This happens with wheeled mice on Windows 9X, for example. */) | |
202 | (nbuttons) | |
8f190436 EZ |
203 | Lisp_Object nbuttons; |
204 | { | |
e7522695 EZ |
205 | int n; |
206 | ||
b7826503 | 207 | CHECK_NUMBER (nbuttons); |
e7522695 EZ |
208 | n = XINT (nbuttons); |
209 | if (n < 2 || n > 3) | |
ebe061ca KS |
210 | xsignal2 (Qargs_out_of_range, |
211 | build_string ("only 2 or 3 mouse buttons are supported"), | |
212 | nbuttons); | |
e7522695 | 213 | mouse_setup_buttons (n); |
8f190436 EZ |
214 | return Qnil; |
215 | } | |
216 | ||
211c7152 EZ |
217 | static void |
218 | mouse_get_xy (int *x, int *y) | |
219 | { | |
220 | union REGS regs; | |
221 | ||
222 | regs.x.ax = 0x0003; | |
223 | int86 (0x33, ®s, ®s); | |
224 | *x = regs.x.cx / 8; | |
225 | *y = regs.x.dx / 8; | |
226 | } | |
227 | ||
f32d4091 KS |
228 | void |
229 | mouse_moveto (x, y) | |
230 | int x, y; | |
1b94449f | 231 | { |
f32d4091 | 232 | union REGS regs; |
3e1944a3 | 233 | struct tty_display_info *tty = CURTTY (); |
1b94449f | 234 | |
3e1944a3 EZ |
235 | if (tty->termscript) |
236 | fprintf (tty->termscript, "<M_XY=%dx%d>", x, y); | |
f32d4091 KS |
237 | regs.x.ax = 0x0004; |
238 | mouse_last_x = regs.x.cx = x * 8; | |
239 | mouse_last_y = regs.x.dx = y * 8; | |
240 | int86 (0x33, ®s, ®s); | |
1b94449f RS |
241 | } |
242 | ||
f32d4091 KS |
243 | static int |
244 | mouse_pressed (b, xp, yp) | |
245 | int b, *xp, *yp; | |
1b94449f | 246 | { |
f32d4091 | 247 | union REGS regs; |
1b94449f | 248 | |
f32d4091 KS |
249 | if (b >= mouse_button_count) |
250 | return 0; | |
251 | regs.x.ax = 0x0005; | |
252 | regs.x.bx = mouse_button_translate[b]; | |
253 | int86 (0x33, ®s, ®s); | |
254 | if (regs.x.bx) | |
255 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
256 | return (regs.x.bx != 0); | |
1b94449f RS |
257 | } |
258 | ||
f32d4091 KS |
259 | static int |
260 | mouse_released (b, xp, yp) | |
261 | int b, *xp, *yp; | |
1b94449f RS |
262 | { |
263 | union REGS regs; | |
264 | ||
f32d4091 KS |
265 | if (b >= mouse_button_count) |
266 | return 0; | |
267 | regs.x.ax = 0x0006; | |
268 | regs.x.bx = mouse_button_translate[b]; | |
269 | int86 (0x33, ®s, ®s); | |
270 | if (regs.x.bx) | |
271 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
272 | return (regs.x.bx != 0); | |
1b94449f RS |
273 | } |
274 | ||
0c7bc1aa EZ |
275 | static int |
276 | mouse_button_depressed (b, xp, yp) | |
277 | int b, *xp, *yp; | |
278 | { | |
279 | union REGS regs; | |
280 | ||
281 | if (b >= mouse_button_count) | |
282 | return 0; | |
283 | regs.x.ax = 0x0003; | |
284 | int86 (0x33, ®s, ®s); | |
285 | if ((regs.x.bx & (1 << mouse_button_translate[b])) != 0) | |
286 | { | |
287 | *xp = regs.x.cx / 8; | |
288 | *yp = regs.x.dx / 8; | |
289 | return 1; | |
290 | } | |
291 | return 0; | |
292 | } | |
293 | ||
f32d4091 KS |
294 | void |
295 | mouse_get_pos (f, insist, bar_window, part, x, y, time) | |
296 | FRAME_PTR *f; | |
297 | int insist; | |
298 | Lisp_Object *bar_window, *x, *y; | |
299 | enum scroll_bar_part *part; | |
300 | unsigned long *time; | |
301 | { | |
302 | int ix, iy; | |
211c7152 EZ |
303 | Lisp_Object frame, tail; |
304 | ||
305 | /* Clear the mouse-moved flag for every frame on this display. */ | |
306 | FOR_EACH_FRAME (tail, frame) | |
307 | XFRAME (frame)->mouse_moved = 0; | |
f32d4091 | 308 | |
2d764c78 | 309 | *f = SELECTED_FRAME(); |
f32d4091 KS |
310 | *bar_window = Qnil; |
311 | mouse_get_xy (&ix, &iy); | |
f32d4091 | 312 | *time = event_timestamp (); |
211c7152 EZ |
313 | *x = make_number (mouse_last_x = ix); |
314 | *y = make_number (mouse_last_y = iy); | |
f32d4091 | 315 | } |
1b94449f | 316 | |
f32d4091 KS |
317 | static void |
318 | mouse_check_moved () | |
1b94449f | 319 | { |
aee81730 | 320 | int x, y; |
1b94449f | 321 | |
f32d4091 | 322 | mouse_get_xy (&x, &y); |
2d764c78 | 323 | SELECTED_FRAME()->mouse_moved |= (x != mouse_last_x || y != mouse_last_y); |
f32d4091 KS |
324 | mouse_last_x = x; |
325 | mouse_last_y = y; | |
326 | } | |
1b94449f | 327 | |
97dd288b EZ |
328 | /* Force the mouse driver to ``forget'' about any button clicks until |
329 | now. */ | |
330 | static void | |
331 | mouse_clear_clicks (void) | |
332 | { | |
333 | int b; | |
334 | ||
335 | for (b = 0; b < mouse_button_count; b++) | |
336 | { | |
337 | int dummy_x, dummy_y; | |
338 | ||
339 | (void) mouse_pressed (b, &dummy_x, &dummy_y); | |
340 | (void) mouse_released (b, &dummy_x, &dummy_y); | |
341 | } | |
342 | } | |
343 | ||
f32d4091 KS |
344 | void |
345 | mouse_init () | |
346 | { | |
347 | union REGS regs; | |
3e1944a3 | 348 | struct tty_display_info *tty = CURTTY (); |
647c32eb | 349 | |
3e1944a3 EZ |
350 | if (tty->termscript) |
351 | fprintf (tty->termscript, "<M_INIT>"); | |
1b94449f | 352 | |
f32d4091 KS |
353 | regs.x.ax = 0x0021; |
354 | int86 (0x33, ®s, ®s); | |
091d0bdf | 355 | |
0c7bc1aa EZ |
356 | /* Reset the mouse last press/release info. It seems that Windows |
357 | doesn't do that automatically when function 21h is called, which | |
358 | causes Emacs to ``remember'' the click that switched focus to the | |
359 | window just before Emacs was started from that window. */ | |
97dd288b | 360 | mouse_clear_clicks (); |
0c7bc1aa | 361 | |
f32d4091 KS |
362 | regs.x.ax = 0x0007; |
363 | regs.x.cx = 0; | |
364 | regs.x.dx = 8 * (ScreenCols () - 1); | |
365 | int86 (0x33, ®s, ®s); | |
1b94449f | 366 | |
f32d4091 KS |
367 | regs.x.ax = 0x0008; |
368 | regs.x.cx = 0; | |
369 | regs.x.dx = 8 * (ScreenRows () - 1); | |
370 | int86 (0x33, ®s, ®s); | |
1b94449f | 371 | |
f32d4091 KS |
372 | mouse_moveto (0, 0); |
373 | mouse_visible = 0; | |
374 | } | |
3eb1dbb6 | 375 | \f |
f32d4091 KS |
376 | /* ------------------------- Screen control ---------------------- |
377 | * | |
378 | */ | |
aee81730 | 379 | |
f32d4091 | 380 | static int internal_terminal = 0; |
aee81730 | 381 | |
f32d4091 KS |
382 | #ifndef HAVE_X_WINDOWS |
383 | extern unsigned char ScreenAttrib; | |
384 | static int screen_face; | |
aee81730 | 385 | |
f32d4091 KS |
386 | static int screen_size_X; |
387 | static int screen_size_Y; | |
388 | static int screen_size; | |
1b94449f | 389 | |
f32d4091 KS |
390 | static int current_pos_X; |
391 | static int current_pos_Y; | |
392 | static int new_pos_X; | |
393 | static int new_pos_Y; | |
1b94449f | 394 | |
f32d4091 KS |
395 | static void *startup_screen_buffer; |
396 | static int startup_screen_size_X; | |
397 | static int startup_screen_size_Y; | |
398 | static int startup_pos_X; | |
399 | static int startup_pos_Y; | |
c9adab25 | 400 | static unsigned char startup_screen_attrib; |
1b94449f | 401 | |
06b1ea13 EZ |
402 | static clock_t startup_time; |
403 | ||
f32d4091 | 404 | static int term_setup_done; |
1b94449f | 405 | |
8ba01a32 EZ |
406 | static unsigned short outside_cursor; |
407 | ||
f32d4091 | 408 | /* Similar to the_only_frame. */ |
3e1944a3 | 409 | struct tty_display_info the_only_display_info; |
1b94449f | 410 | |
039274cf EZ |
411 | /* Support for DOS/V (allows Japanese characters to be displayed on |
412 | standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */ | |
413 | ||
414 | /* Holds the address of the text-mode screen buffer. */ | |
415 | static unsigned long screen_old_address = 0; | |
416 | /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */ | |
417 | static unsigned short screen_virtual_segment = 0; | |
418 | static unsigned short screen_virtual_offset = 0; | |
68026917 AI |
419 | /* A flag to control how to display unibyte 8-bit characters. */ |
420 | extern int unibyte_display_via_language_environment; | |
039274cf | 421 | |
6b61353c KH |
422 | extern Lisp_Object Qcursor_type; |
423 | extern Lisp_Object Qbar, Qhbar; | |
8ba01a32 | 424 | |
9ccf54e9 | 425 | /* The screen colors of the current frame, which serve as the default |
deece6f5 EZ |
426 | colors for newly-created frames. */ |
427 | static int initial_screen_colors[2]; | |
428 | ||
039274cf EZ |
429 | #if __DJGPP__ > 1 |
430 | /* Update the screen from a part of relocated DOS/V screen buffer which | |
431 | begins at OFFSET and includes COUNT characters. */ | |
432 | static void | |
433 | dosv_refresh_virtual_screen (int offset, int count) | |
434 | { | |
435 | __dpmi_regs regs; | |
436 | ||
9ab8560d | 437 | if (offset < 0 || count < 0) /* paranoia; invalid values crash DOS/V */ |
40437cf5 EZ |
438 | return; |
439 | ||
039274cf EZ |
440 | regs.h.ah = 0xff; /* update relocated screen */ |
441 | regs.x.es = screen_virtual_segment; | |
442 | regs.x.di = screen_virtual_offset + offset; | |
443 | regs.x.cx = count; | |
444 | __dpmi_int (0x10, ®s); | |
445 | } | |
446 | #endif | |
447 | ||
d1d5dc19 | 448 | static void |
f32d4091 | 449 | dos_direct_output (y, x, buf, len) |
56e19ec4 | 450 | int x, y; |
f32d4091 KS |
451 | char *buf; |
452 | int len; | |
1b94449f | 453 | { |
40437cf5 EZ |
454 | int t0 = 2 * (x + y * screen_size_X); |
455 | int t = t0 + (int) ScreenPrimary; | |
039274cf | 456 | int l0 = len; |
fc171623 KH |
457 | |
458 | #if (__DJGPP__ < 2) | |
f32d4091 KS |
459 | while (--len >= 0) { |
460 | dosmemput (buf++, 1, t); | |
461 | t += 2; | |
462 | } | |
fc171623 KH |
463 | #else |
464 | /* This is faster. */ | |
465 | for (_farsetsel (_dos_ds); --len >= 0; t += 2, buf++) | |
466 | _farnspokeb (t, *buf); | |
039274cf EZ |
467 | |
468 | if (screen_virtual_segment) | |
469 | dosv_refresh_virtual_screen (t0, l0); | |
fc171623 | 470 | #endif |
1b94449f | 471 | } |
aee81730 | 472 | #endif |
1b94449f | 473 | |
1b94449f RS |
474 | /* Flash the screen as a substitute for BEEPs. */ |
475 | ||
f32d4091 | 476 | #if (__DJGPP__ < 2) |
49a09c76 | 477 | static void |
fcea9cd4 | 478 | do_visible_bell (xorattr) |
1b94449f RS |
479 | unsigned char xorattr; |
480 | { | |
49a09c76 | 481 | asm volatile |
7677c808 EZ |
482 | (" movb $1,%%dl \n\ |
483 | visible_bell_0: \n\ | |
484 | movl _ScreenPrimary,%%eax \n\ | |
485 | call dosmemsetup \n\ | |
486 | movl %%eax,%%ebx \n\ | |
487 | movl %1,%%ecx \n\ | |
488 | movb %0,%%al \n\ | |
489 | incl %%ebx \n\ | |
490 | visible_bell_1: \n\ | |
491 | xorb %%al,%%gs:(%%ebx) \n\ | |
492 | addl $2,%%ebx \n\ | |
493 | decl %%ecx \n\ | |
494 | jne visible_bell_1 \n\ | |
495 | decb %%dl \n\ | |
496 | jne visible_bell_3 \n\ | |
497 | visible_bell_2: \n\ | |
498 | movzwl %%ax,%%eax \n\ | |
499 | movzwl %%ax,%%eax \n\ | |
500 | movzwl %%ax,%%eax \n\ | |
501 | movzwl %%ax,%%eax \n\ | |
502 | decw %%cx \n\ | |
503 | jne visible_bell_2 \n\ | |
504 | jmp visible_bell_0 \n\ | |
ca986694 RS |
505 | visible_bell_3:" |
506 | : /* no output */ | |
f32d4091 | 507 | : "m" (xorattr), "g" (screen_size) |
ca986694 | 508 | : "%eax", "%ebx", /* "%gs",*/ "%ecx", "%edx"); |
1b94449f RS |
509 | } |
510 | ||
f32d4091 KS |
511 | static void |
512 | ScreenVisualBell (void) | |
513 | { | |
514 | /* This creates an xor-mask that will swap the default fore- and | |
515 | background colors. */ | |
5bcee7ef KL |
516 | do_visible_bell (((FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) |
517 | ^ FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ())) | |
f32d4091 KS |
518 | * 0x11) & 0x7f); |
519 | } | |
520 | #endif | |
521 | ||
522 | #ifndef HAVE_X_WINDOWS | |
523 | ||
b36701cc RS |
524 | static int blink_bit = -1; /* the state of the blink bit at startup */ |
525 | ||
76ac1508 RS |
526 | /* Enable bright background colors. */ |
527 | static void | |
528 | bright_bg (void) | |
529 | { | |
530 | union REGS regs; | |
531 | ||
b36701cc RS |
532 | /* Remember the original state of the blink/bright-background bit. |
533 | It is stored at 0040:0065h in the BIOS data area. */ | |
534 | if (blink_bit == -1) | |
535 | blink_bit = (_farpeekb (_dos_ds, 0x465) & 0x20) == 0x20; | |
536 | ||
76ac1508 RS |
537 | regs.h.bl = 0; |
538 | regs.x.ax = 0x1003; | |
539 | int86 (0x10, ®s, ®s); | |
540 | } | |
541 | ||
b36701cc RS |
542 | /* Disable bright background colors (and enable blinking) if we found |
543 | the video system in that state at startup. */ | |
544 | static void | |
545 | maybe_enable_blinking (void) | |
546 | { | |
547 | if (blink_bit == 1) | |
548 | { | |
549 | union REGS regs; | |
550 | ||
551 | regs.h.bl = 1; | |
552 | regs.x.ax = 0x1003; | |
553 | int86 (0x10, ®s, ®s); | |
554 | } | |
555 | } | |
556 | ||
8ba01a32 EZ |
557 | /* Return non-zero if the system has a VGA adapter. */ |
558 | static int | |
559 | vga_installed (void) | |
560 | { | |
561 | union REGS regs; | |
562 | ||
563 | regs.x.ax = 0x1a00; | |
564 | int86 (0x10, ®s, ®s); | |
565 | if (regs.h.al == 0x1a && regs.h.bl > 5 && regs.h.bl < 13) | |
566 | return 1; | |
567 | return 0; | |
568 | } | |
569 | ||
4a96d4d2 KH |
570 | /* Set the screen dimensions so that it can show no less than |
571 | ROWS x COLS frame. */ | |
48ffe371 | 572 | |
4a96d4d2 KH |
573 | void |
574 | dos_set_window_size (rows, cols) | |
575 | int *rows, *cols; | |
576 | { | |
577 | char video_name[30]; | |
4a96d4d2 | 578 | union REGS regs; |
56e19ec4 EZ |
579 | Lisp_Object video_mode; |
580 | int video_mode_value, have_vga = 0; | |
4a96d4d2 KH |
581 | int current_rows = ScreenRows (), current_cols = ScreenCols (); |
582 | ||
583 | if (*rows == current_rows && *cols == current_cols) | |
584 | return; | |
585 | ||
4a96d4d2 | 586 | mouse_off (); |
8ba01a32 | 587 | have_vga = vga_installed (); |
4a96d4d2 | 588 | |
48ffe371 | 589 | /* If the user specified a special video mode for these dimensions, |
4a96d4d2 KH |
590 | use that mode. */ |
591 | sprintf (video_name, "screen-dimensions-%dx%d", *rows, *cols); | |
592 | video_mode = XSYMBOL (Fintern_soft (build_string (video_name), | |
593 | Qnil))-> value; | |
594 | ||
595 | if (INTEGERP (video_mode) | |
596 | && (video_mode_value = XINT (video_mode)) > 0) | |
597 | { | |
598 | regs.x.ax = video_mode_value; | |
599 | int86 (0x10, ®s, ®s); | |
48ffe371 RS |
600 | |
601 | if (have_mouse) | |
602 | { | |
603 | /* Must hardware-reset the mouse, or else it won't update | |
604 | its notion of screen dimensions for some non-standard | |
605 | video modes. This is *painfully* slow... */ | |
606 | regs.x.ax = 0; | |
607 | int86 (0x33, ®s, ®s); | |
608 | } | |
4a96d4d2 KH |
609 | } |
610 | ||
611 | /* Find one of the dimensions supported by standard EGA/VGA | |
612 | which gives us at least the required dimensions. */ | |
613 | ||
614 | #if __DJGPP__ > 1 | |
615 | ||
616 | else | |
617 | { | |
618 | static struct { | |
56e19ec4 | 619 | int rows, need_vga; |
4a96d4d2 KH |
620 | } std_dimension[] = { |
621 | {25, 0}, | |
622 | {28, 1}, | |
623 | {35, 0}, | |
624 | {40, 1}, | |
625 | {43, 0}, | |
626 | {50, 1} | |
627 | }; | |
628 | int i = 0; | |
629 | ||
630 | while (i < sizeof (std_dimension) / sizeof (std_dimension[0])) | |
631 | { | |
632 | if (std_dimension[i].need_vga <= have_vga | |
633 | && std_dimension[i].rows >= *rows) | |
634 | { | |
635 | if (std_dimension[i].rows != current_rows | |
636 | || *cols != current_cols) | |
48ffe371 | 637 | _set_screen_lines (std_dimension[i].rows); |
4a96d4d2 KH |
638 | break; |
639 | } | |
48ffe371 | 640 | i++; |
4a96d4d2 KH |
641 | } |
642 | } | |
643 | ||
644 | #else /* not __DJGPP__ > 1 */ | |
645 | ||
646 | else if (*rows <= 25) | |
647 | { | |
648 | if (current_rows != 25 || current_cols != 80) | |
649 | { | |
650 | regs.x.ax = 3; | |
651 | int86 (0x10, ®s, ®s); | |
652 | regs.x.ax = 0x1101; | |
653 | regs.h.bl = 0; | |
654 | int86 (0x10, ®s, ®s); | |
655 | regs.x.ax = 0x1200; | |
656 | regs.h.bl = 32; | |
657 | int86 (0x10, ®s, ®s); | |
658 | regs.x.ax = 3; | |
659 | int86 (0x10, ®s, ®s); | |
660 | } | |
661 | } | |
662 | else if (*rows <= 50) | |
663 | if (have_vga && (current_rows != 50 || current_cols != 80) | |
664 | || *rows <= 43 && (current_rows != 43 || current_cols != 80)) | |
665 | { | |
666 | regs.x.ax = 3; | |
667 | int86 (0x10, ®s, ®s); | |
668 | regs.x.ax = 0x1112; | |
669 | regs.h.bl = 0; | |
670 | int86 (0x10, ®s, ®s); | |
671 | regs.x.ax = 0x1200; | |
672 | regs.h.bl = 32; | |
673 | int86 (0x10, ®s, ®s); | |
674 | regs.x.ax = 0x0100; | |
675 | regs.x.cx = 7; | |
676 | int86 (0x10, ®s, ®s); | |
677 | } | |
678 | #endif /* not __DJGPP__ > 1 */ | |
679 | ||
680 | if (have_mouse) | |
681 | { | |
4a96d4d2 KH |
682 | mouse_init (); |
683 | mouse_on (); | |
684 | } | |
685 | ||
686 | /* Tell the caller what dimensions have been REALLY set. */ | |
687 | *rows = ScreenRows (); | |
688 | *cols = ScreenCols (); | |
76ac1508 | 689 | |
bed43f1d EZ |
690 | /* Update Emacs' notion of screen dimensions. */ |
691 | screen_size_X = *cols; | |
692 | screen_size_Y = *rows; | |
693 | screen_size = *cols * *rows; | |
694 | ||
41ad069b EZ |
695 | #if __DJGPP__ > 1 |
696 | /* If the dimensions changed, the mouse highlight info is invalid. */ | |
697 | if (current_rows != *rows || current_cols != *cols) | |
698 | { | |
699 | struct frame *f = SELECTED_FRAME(); | |
3e1944a3 | 700 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
41ad069b EZ |
701 | Lisp_Object window = dpyinfo->mouse_face_window; |
702 | ||
703 | if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f) | |
704 | { | |
705 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
706 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
707 | dpyinfo->mouse_face_window = Qnil; | |
708 | } | |
709 | } | |
710 | #endif | |
711 | ||
76ac1508 RS |
712 | /* Enable bright background colors. */ |
713 | bright_bg (); | |
039274cf EZ |
714 | |
715 | /* FIXME: I'm not sure the above will run at all on DOS/V. But let's | |
716 | be defensive anyway. */ | |
717 | if (screen_virtual_segment) | |
718 | dosv_refresh_virtual_screen (0, *cols * *rows); | |
4a96d4d2 KH |
719 | } |
720 | ||
48ffe371 RS |
721 | /* If we write a character in the position where the mouse is, |
722 | the mouse cursor may need to be refreshed. */ | |
09e2ac30 RS |
723 | |
724 | static void | |
f32d4091 | 725 | mouse_off_maybe () |
09e2ac30 | 726 | { |
f32d4091 | 727 | int x, y; |
56e19ec4 | 728 | |
f32d4091 KS |
729 | if (!mouse_visible) |
730 | return; | |
56e19ec4 | 731 | |
f32d4091 KS |
732 | mouse_get_xy (&x, &y); |
733 | if (y != new_pos_Y || x < new_pos_X) | |
734 | return; | |
56e19ec4 | 735 | |
f32d4091 KS |
736 | mouse_off (); |
737 | } | |
738 | ||
8ba01a32 EZ |
739 | #define DEFAULT_CURSOR_START (-1) |
740 | #define DEFAULT_CURSOR_WIDTH (-1) | |
741 | #define BOX_CURSOR_WIDTH (-32) | |
742 | ||
743 | /* Set cursor to begin at scan line START_LINE in the character cell | |
744 | and extend for WIDTH scan lines. Scan lines are counted from top | |
745 | of the character cell, starting from zero. */ | |
746 | static void | |
747 | msdos_set_cursor_shape (struct frame *f, int start_line, int width) | |
748 | { | |
749 | #if __DJGPP__ > 1 | |
750 | unsigned desired_cursor; | |
751 | __dpmi_regs regs; | |
752 | int max_line, top_line, bot_line; | |
3e1944a3 | 753 | struct tty_display_info *tty = FRAME_TTY (f); |
8ba01a32 EZ |
754 | |
755 | /* Avoid the costly BIOS call if F isn't the currently selected | |
756 | frame. Allow for NULL as unconditionally meaning the selected | |
757 | frame. */ | |
758 | if (f && f != SELECTED_FRAME()) | |
759 | return; | |
760 | ||
3e1944a3 EZ |
761 | if (tty->termscript) |
762 | fprintf (tty->termscript, "\nCURSOR SHAPE=(%d,%d)", start_line, width); | |
b106731c | 763 | |
8ba01a32 EZ |
764 | /* The character cell size in scan lines is stored at 40:85 in the |
765 | BIOS data area. */ | |
766 | max_line = _farpeekw (_dos_ds, 0x485) - 1; | |
767 | switch (max_line) | |
768 | { | |
769 | default: /* this relies on CGA cursor emulation being ON! */ | |
770 | case 7: | |
771 | bot_line = 7; | |
772 | break; | |
773 | case 9: | |
774 | bot_line = 9; | |
775 | break; | |
776 | case 13: | |
777 | bot_line = 12; | |
778 | break; | |
779 | case 15: | |
780 | bot_line = 14; | |
781 | break; | |
782 | } | |
783 | ||
784 | if (width < 0) | |
785 | { | |
786 | if (width == BOX_CURSOR_WIDTH) | |
787 | { | |
788 | top_line = 0; | |
789 | bot_line = max_line; | |
790 | } | |
791 | else if (start_line != DEFAULT_CURSOR_START) | |
792 | { | |
793 | top_line = start_line; | |
794 | bot_line = top_line - width - 1; | |
795 | } | |
796 | else if (width != DEFAULT_CURSOR_WIDTH) | |
797 | { | |
798 | top_line = 0; | |
799 | bot_line = -1 - width; | |
800 | } | |
801 | else | |
802 | top_line = bot_line + 1; | |
803 | } | |
804 | else if (width == 0) | |
805 | { | |
806 | /* [31, 0] seems to DTRT for all screen sizes. */ | |
807 | top_line = 31; | |
808 | bot_line = 0; | |
809 | } | |
810 | else /* WIDTH is positive */ | |
811 | { | |
812 | if (start_line != DEFAULT_CURSOR_START) | |
813 | bot_line = start_line; | |
814 | top_line = bot_line - (width - 1); | |
815 | } | |
816 | ||
817 | /* If the current cursor shape is already what they want, we are | |
818 | history here. */ | |
819 | desired_cursor = ((top_line & 0x1f) << 8) | (bot_line & 0x1f); | |
820 | if (desired_cursor == _farpeekw (_dos_ds, 0x460)) | |
821 | return; | |
822 | ||
823 | regs.h.ah = 1; | |
824 | regs.x.cx = desired_cursor; | |
825 | __dpmi_int (0x10, ®s); | |
826 | #endif /* __DJGPP__ > 1 */ | |
827 | } | |
828 | ||
829 | static void | |
830 | IT_set_cursor_type (struct frame *f, Lisp_Object cursor_type) | |
831 | { | |
a0738471 | 832 | if (EQ (cursor_type, Qbar) || EQ (cursor_type, Qhbar)) |
8ba01a32 EZ |
833 | { |
834 | /* Just BAR means the normal EGA/VGA cursor. */ | |
835 | msdos_set_cursor_shape (f, DEFAULT_CURSOR_START, DEFAULT_CURSOR_WIDTH); | |
836 | } | |
a0738471 EZ |
837 | else if (CONSP (cursor_type) |
838 | && (EQ (XCAR (cursor_type), Qbar) | |
839 | || EQ (XCAR (cursor_type), Qhbar))) | |
8ba01a32 EZ |
840 | { |
841 | Lisp_Object bar_parms = XCDR (cursor_type); | |
842 | int width; | |
843 | ||
844 | if (INTEGERP (bar_parms)) | |
845 | { | |
846 | /* Feature: negative WIDTH means cursor at the top | |
847 | of the character cell, zero means invisible cursor. */ | |
848 | width = XINT (bar_parms); | |
849 | msdos_set_cursor_shape (f, width >= 0 ? DEFAULT_CURSOR_START : 0, | |
850 | width); | |
851 | } | |
852 | else if (CONSP (bar_parms) | |
853 | && INTEGERP (XCAR (bar_parms)) | |
854 | && INTEGERP (XCDR (bar_parms))) | |
855 | { | |
856 | int start_line = XINT (XCDR (bar_parms)); | |
857 | ||
858 | width = XINT (XCAR (bar_parms)); | |
859 | msdos_set_cursor_shape (f, start_line, width); | |
860 | } | |
861 | } | |
862 | else | |
b106731c EZ |
863 | { |
864 | /* Treat anything unknown as "box cursor". This includes nil, so | |
865 | that a frame which doesn't specify a cursor type gets a box, | |
866 | which is the default in Emacs. */ | |
867 | msdos_set_cursor_shape (f, 0, BOX_CURSOR_WIDTH); | |
868 | } | |
8ba01a32 EZ |
869 | } |
870 | ||
71f65669 | 871 | static void |
3e1944a3 | 872 | IT_ring_bell (struct frame *f) |
f32d4091 KS |
873 | { |
874 | if (visible_bell) | |
aee81730 | 875 | { |
f32d4091 KS |
876 | mouse_off (); |
877 | ScreenVisualBell (); | |
aee81730 | 878 | } |
f32d4091 | 879 | else |
3635be47 RS |
880 | { |
881 | union REGS inregs, outregs; | |
882 | inregs.h.ah = 2; | |
883 | inregs.h.dl = 7; | |
884 | intdos (&inregs, &outregs); | |
885 | } | |
09e2ac30 RS |
886 | } |
887 | ||
c77f6f1b EZ |
888 | /* Given a face id FACE, extract the face parameters to be used for |
889 | display until the face changes. The face parameters (actually, its | |
890 | color) are used to construct the video attribute byte for each | |
891 | glyph during the construction of the buffer that is then blitted to | |
892 | the video RAM. */ | |
f32d4091 KS |
893 | static void |
894 | IT_set_face (int face) | |
895 | { | |
2d764c78 | 896 | struct frame *sf = SELECTED_FRAME(); |
546701f5 EZ |
897 | struct face *fp = FACE_FROM_ID (sf, face); |
898 | struct face *dfp = FACE_FROM_ID (sf, DEFAULT_FACE_ID); | |
899 | unsigned long fg, bg, dflt_fg, dflt_bg; | |
3e1944a3 | 900 | struct tty_display_info *tty = FRAME_TTY (sf); |
f32d4091 | 901 | |
c77f6f1b | 902 | if (!fp) |
e30aee93 | 903 | { |
546701f5 | 904 | fp = dfp; |
e30aee93 EZ |
905 | /* The default face for the frame should always be realized and |
906 | cached. */ | |
907 | if (!fp) | |
908 | abort (); | |
909 | } | |
f32d4091 | 910 | screen_face = face; |
c77f6f1b EZ |
911 | fg = fp->foreground; |
912 | bg = fp->background; | |
546701f5 EZ |
913 | dflt_fg = dfp->foreground; |
914 | dflt_bg = dfp->background; | |
c77f6f1b | 915 | |
abcce93a MB |
916 | /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* colors |
917 | mean use the colors of the default face. Note that we assume all | |
918 | 16 colors to be available for the background, since Emacs switches | |
919 | on this mode (and loses the blinking attribute) at startup. */ | |
f9d2fdc4 | 920 | if (fg == FACE_TTY_DEFAULT_COLOR || fg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 | 921 | fg = FRAME_FOREGROUND_PIXEL (sf); |
f9d2fdc4 | 922 | else if (fg == FACE_TTY_DEFAULT_BG_COLOR) |
3b620731 EZ |
923 | fg = FRAME_BACKGROUND_PIXEL (sf); |
924 | if (bg == FACE_TTY_DEFAULT_COLOR || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
925 | bg = FRAME_BACKGROUND_PIXEL (sf); | |
f9d2fdc4 | 926 | else if (bg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 EZ |
927 | bg = FRAME_FOREGROUND_PIXEL (sf); |
928 | ||
929 | /* Make sure highlighted lines really stand out, come what may. */ | |
abcce93a | 930 | if (fp->tty_reverse_p && (fg == dflt_fg && bg == dflt_bg)) |
3b620731 EZ |
931 | { |
932 | unsigned long tem = fg; | |
933 | ||
934 | fg = bg; | |
935 | bg = tem; | |
936 | } | |
76648534 EZ |
937 | /* If the user requested inverse video, obey. */ |
938 | if (inverse_video) | |
939 | { | |
940 | unsigned long tem2 = fg; | |
941 | ||
942 | fg = bg; | |
943 | bg = tem2; | |
944 | } | |
3e1944a3 EZ |
945 | if (tty->termscript) |
946 | fprintf (tty->termscript, "<FACE %d: %d/%d[FG:%d/BG:%d]>", face, | |
abcce93a | 947 | fp->foreground, fp->background, fg, bg); |
c77f6f1b EZ |
948 | if (fg >= 0 && fg < 16) |
949 | { | |
950 | ScreenAttrib &= 0xf0; | |
951 | ScreenAttrib |= fg; | |
952 | } | |
953 | if (bg >= 0 && bg < 16) | |
954 | { | |
955 | ScreenAttrib &= 0x0f; | |
956 | ScreenAttrib |= ((bg & 0x0f) << 4); | |
957 | } | |
f32d4091 KS |
958 | } |
959 | ||
aa9ce936 | 960 | Lisp_Object Vdos_unsupported_char_glyph; |
3e1944a3 EZ |
961 | extern unsigned char *encode_terminal_code (struct glyph *, int, |
962 | struct coding_system *); | |
71f65669 | 963 | static void |
3e1944a3 | 964 | IT_write_glyphs (struct frame *f, struct glyph *str, int str_len) |
f32d4091 | 965 | { |
aa9ce936 | 966 | unsigned char *screen_buf, *screen_bp, *screen_buf_end, *bp; |
6be49c3a EZ |
967 | int unsupported_face = 0; |
968 | unsigned unsupported_char = '\177'; | |
039274cf | 969 | int offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 EZ |
970 | register int sl = str_len; |
971 | register int tlen = GLYPH_TABLE_LENGTH; | |
972 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
3e1944a3 | 973 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 | 974 | struct frame *sf; |
3e1944a3 | 975 | unsigned char *conversion_buffer; |
87485d6f | 976 | |
52d38ab2 EZ |
977 | /* Do we need to consider conversion of unibyte characters to |
978 | multibyte? */ | |
979 | int convert_unibyte_characters | |
e16bf494 AI |
980 | = (NILP (current_buffer->enable_multibyte_characters) |
981 | && unibyte_display_via_language_environment); | |
52d38ab2 | 982 | |
3e1944a3 EZ |
983 | /* If terminal_coding does any conversion, use it, otherwise use |
984 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
985 | because it always returns 1 if terminal_coding.src_multibyte is 1. */ | |
986 | struct coding_system *coding = FRAME_TERMINAL_CODING (f); | |
987 | ||
988 | if (!(coding->common_flags & CODING_REQUIRE_ENCODING_MASK)) | |
989 | coding = &safe_terminal_coding; | |
648648a9 | 990 | |
3b620731 | 991 | if (str_len <= 0) return; |
56e19ec4 | 992 | |
aa9ce936 EZ |
993 | screen_buf = screen_bp = alloca (str_len * 2); |
994 | screen_buf_end = screen_buf + str_len * 2; | |
2d764c78 | 995 | sf = SELECTED_FRAME(); |
e30aee93 EZ |
996 | |
997 | /* Since faces get cached and uncached behind our back, we can't | |
998 | rely on their indices in the cache being consistent across | |
999 | invocations. So always reset the screen face to the default | |
1000 | face of the frame, before writing glyphs, and let the glyphs | |
1001 | set the right face if it's different from the default. */ | |
1002 | IT_set_face (DEFAULT_FACE_ID); | |
56e19ec4 | 1003 | |
aa9ce936 EZ |
1004 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
1005 | the tail. */ | |
3e1944a3 EZ |
1006 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
1007 | while (sl > 0) | |
aa9ce936 | 1008 | { |
3e1944a3 | 1009 | int cf; |
aa9ce936 EZ |
1010 | |
1011 | /* Glyphs with GLYPH_MASK_PADDING bit set are actually there | |
1012 | only for the redisplay code to know how many columns does | |
1013 | this character occupy on the screen. Skip padding glyphs. */ | |
c77f6f1b | 1014 | if (CHAR_GLYPH_PADDING_P (*str)) |
aa9ce936 EZ |
1015 | { |
1016 | str++; | |
1017 | sl--; | |
1018 | } | |
1019 | else | |
1020 | { | |
aa9ce936 EZ |
1021 | /* If the face of this glyph is different from the current |
1022 | screen face, update the screen attribute byte. */ | |
78555fbe | 1023 | cf = str->face_id; |
aa9ce936 EZ |
1024 | if (cf != screen_face) |
1025 | IT_set_face (cf); /* handles invalid faces gracefully */ | |
1026 | ||
3e1944a3 EZ |
1027 | if (sl <= 1) |
1028 | /* This is the last glyph. */ | |
1029 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
aa9ce936 | 1030 | |
3e1944a3 EZ |
1031 | conversion_buffer = encode_terminal_code (str, 1, coding); |
1032 | if (coding->produced > 0) | |
aa9ce936 | 1033 | { |
3e1944a3 | 1034 | if (2*coding->produced > screen_buf_end - screen_bp) |
aa9ce936 | 1035 | { |
3e1944a3 EZ |
1036 | /* The allocated buffer for screen writes is too small. |
1037 | Flush it and loop again without incrementing STR, so | |
1038 | that the next loop will begin with the same glyph. */ | |
1039 | int nbytes = screen_bp - screen_buf; | |
1040 | ||
1041 | mouse_off_maybe (); | |
1042 | dosmemput (screen_buf, nbytes, (int)ScreenPrimary + offset); | |
1043 | if (screen_virtual_segment) | |
1044 | dosv_refresh_virtual_screen (offset, nbytes / 2); | |
1045 | new_pos_X += nbytes / 2; | |
1046 | offset += nbytes; | |
1047 | ||
1048 | /* Prepare to reuse the same buffer again. */ | |
1049 | screen_bp = screen_buf; | |
1050 | continue; | |
aa9ce936 | 1051 | } |
3e1944a3 | 1052 | else |
aa9ce936 | 1053 | { |
3e1944a3 EZ |
1054 | /* There's enough place in the allocated buffer to add |
1055 | the encoding of this glyph. */ | |
aa9ce936 | 1056 | |
3e1944a3 EZ |
1057 | /* Copy the encoded bytes to the allocated buffer. */ |
1058 | for (bp = conversion_buffer; coding->produced--; bp++) | |
aa9ce936 | 1059 | { |
3e1944a3 | 1060 | *screen_bp++ = (unsigned char)*bp; |
aa9ce936 | 1061 | *screen_bp++ = ScreenAttrib; |
3e1944a3 EZ |
1062 | if (tty->termscript) |
1063 | fputc (*bp, tty->termscript); | |
aa9ce936 EZ |
1064 | } |
1065 | } | |
aa9ce936 | 1066 | } |
3e1944a3 EZ |
1067 | /* Update STR and its remaining length. */ |
1068 | str++; | |
1069 | sl--; | |
aa9ce936 | 1070 | } |
aee81730 RS |
1071 | } |
1072 | ||
aa9ce936 | 1073 | /* Dump whatever is left in the screen buffer. */ |
f32d4091 | 1074 | mouse_off_maybe (); |
aa9ce936 | 1075 | dosmemput (screen_buf, screen_bp - screen_buf, (int)ScreenPrimary + offset); |
039274cf | 1076 | if (screen_virtual_segment) |
aa9ce936 EZ |
1077 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); |
1078 | new_pos_X += (screen_bp - screen_buf) / 2; | |
f32d4091 | 1079 | } |
aee81730 | 1080 | |
41ad069b EZ |
1081 | /************************************************************************ |
1082 | Mouse Highlight (and friends..) | |
1083 | ************************************************************************/ | |
1084 | ||
ee8ceff8 | 1085 | /* Last window where we saw the mouse. Used by mouse-autoselect-window. */ |
9005a471 EZ |
1086 | static Lisp_Object last_mouse_window; |
1087 | ||
41ad069b EZ |
1088 | static int mouse_preempted = 0; /* non-zero when XMenu gobbles mouse events */ |
1089 | ||
1090 | /* Set the mouse pointer shape according to whether it is in the | |
1091 | area where the mouse highlight is in effect. */ | |
1092 | static void | |
1093 | IT_set_mouse_pointer (int mode) | |
1094 | { | |
1095 | /* A no-op for now. DOS text-mode mouse pointer doesn't offer too | |
1096 | many possibilities to change its shape, and the available | |
1097 | functionality pretty much sucks (e.g., almost every reasonable | |
1098 | shape will conceal the character it is on). Since the color of | |
1099 | the pointer changes in the highlighted area, it is not clear to | |
1100 | me whether anything else is required, anyway. */ | |
1101 | } | |
1102 | ||
1103 | /* Display the active region described by mouse_face_* | |
1104 | in its mouse-face if HL > 0, in its normal face if HL = 0. */ | |
1105 | static void | |
3e1944a3 | 1106 | show_mouse_face (struct tty_display_info *dpyinfo, int hl) |
41ad069b EZ |
1107 | { |
1108 | struct window *w = XWINDOW (dpyinfo->mouse_face_window); | |
1109 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
1110 | int i; | |
1111 | struct face *fp; | |
3e1944a3 | 1112 | struct tty_display_info *tty = FRAME_TTY (f); |
41ad069b | 1113 | |
56e19ec4 | 1114 | |
41ad069b EZ |
1115 | /* If window is in the process of being destroyed, don't bother |
1116 | doing anything. */ | |
1117 | if (w->current_matrix == NULL) | |
1118 | goto set_cursor_shape; | |
1119 | ||
1120 | /* Recognize when we are called to operate on rows that don't exist | |
1121 | anymore. This can happen when a window is split. */ | |
1122 | if (dpyinfo->mouse_face_end_row >= w->current_matrix->nrows) | |
1123 | goto set_cursor_shape; | |
1124 | ||
1125 | /* There's no sense to do anything if the mouse face isn't realized. */ | |
1126 | if (hl > 0) | |
1127 | { | |
abf10ed7 KS |
1128 | if (dpyinfo->mouse_face_hidden) |
1129 | goto set_cursor_shape; | |
1130 | ||
41ad069b EZ |
1131 | fp = FACE_FROM_ID (SELECTED_FRAME(), dpyinfo->mouse_face_face_id); |
1132 | if (!fp) | |
1133 | goto set_cursor_shape; | |
1134 | } | |
1135 | ||
1136 | /* Note that mouse_face_beg_row etc. are window relative. */ | |
1137 | for (i = dpyinfo->mouse_face_beg_row; | |
1138 | i <= dpyinfo->mouse_face_end_row; | |
1139 | i++) | |
1140 | { | |
1141 | int start_hpos, end_hpos; | |
1142 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, i); | |
1143 | ||
1144 | /* Don't do anything if row doesn't have valid contents. */ | |
1145 | if (!row->enabled_p) | |
1146 | continue; | |
1147 | ||
1148 | /* For all but the first row, the highlight starts at column 0. */ | |
1149 | if (i == dpyinfo->mouse_face_beg_row) | |
1150 | start_hpos = dpyinfo->mouse_face_beg_col; | |
1151 | else | |
1152 | start_hpos = 0; | |
1153 | ||
1154 | if (i == dpyinfo->mouse_face_end_row) | |
1155 | end_hpos = dpyinfo->mouse_face_end_col; | |
1156 | else | |
1157 | end_hpos = row->used[TEXT_AREA]; | |
1158 | ||
1159 | if (end_hpos <= start_hpos) | |
1160 | continue; | |
48c14970 EZ |
1161 | /* Record that some glyphs of this row are displayed in |
1162 | mouse-face. */ | |
1163 | row->mouse_face_p = hl > 0; | |
41ad069b EZ |
1164 | if (hl > 0) |
1165 | { | |
c655f6fd KS |
1166 | int vpos = row->y + WINDOW_TOP_EDGE_Y (w); |
1167 | int kstart = start_hpos + WINDOW_LEFT_EDGE_X (w); | |
41ad069b EZ |
1168 | int nglyphs = end_hpos - start_hpos; |
1169 | int offset = ScreenPrimary + 2*(vpos*screen_size_X + kstart) + 1; | |
1170 | int start_offset = offset; | |
1171 | ||
3e1944a3 EZ |
1172 | if (tty->termscript) |
1173 | fprintf (tty->termscript, "\n<MH+ %d-%d:%d>", | |
41ad069b EZ |
1174 | kstart, kstart + nglyphs - 1, vpos); |
1175 | ||
1176 | mouse_off (); | |
1177 | IT_set_face (dpyinfo->mouse_face_face_id); | |
1178 | /* Since we are going to change only the _colors_ of the | |
1179 | displayed text, there's no need to go through all the | |
1180 | pain of generating and encoding the text from the glyphs. | |
1181 | Instead, we simply poke the attribute byte of each | |
1182 | affected position in video memory with the colors | |
1183 | computed by IT_set_face! */ | |
1184 | _farsetsel (_dos_ds); | |
1185 | while (nglyphs--) | |
1186 | { | |
1187 | _farnspokeb (offset, ScreenAttrib); | |
1188 | offset += 2; | |
1189 | } | |
1190 | if (screen_virtual_segment) | |
1191 | dosv_refresh_virtual_screen (start_offset, end_hpos - start_hpos); | |
1192 | mouse_on (); | |
1193 | } | |
1194 | else | |
1195 | { | |
1196 | /* We are removing a previously-drawn mouse highlight. The | |
1197 | safest way to do so is to redraw the glyphs anew, since | |
1198 | all kinds of faces and display tables could have changed | |
1199 | behind our back. */ | |
1200 | int nglyphs = end_hpos - start_hpos; | |
1201 | int save_x = new_pos_X, save_y = new_pos_Y; | |
1202 | ||
1203 | if (end_hpos >= row->used[TEXT_AREA]) | |
1204 | nglyphs = row->used[TEXT_AREA] - start_hpos; | |
1205 | ||
1206 | /* IT_write_glyphs writes at cursor position, so we need to | |
1207 | temporarily move cursor coordinates to the beginning of | |
1208 | the highlight region. */ | |
c655f6fd KS |
1209 | new_pos_X = start_hpos + WINDOW_LEFT_EDGE_X (w); |
1210 | new_pos_Y = row->y + WINDOW_TOP_EDGE_Y (w); | |
41ad069b | 1211 | |
3e1944a3 EZ |
1212 | if (tty->termscript) |
1213 | fprintf (tty->termscript, "<MH- %d-%d:%d>", | |
41ad069b | 1214 | new_pos_X, new_pos_X + nglyphs - 1, new_pos_Y); |
3e1944a3 EZ |
1215 | IT_write_glyphs (f, row->glyphs[TEXT_AREA] + start_hpos, nglyphs); |
1216 | if (tty->termscript) | |
1217 | fputs ("\n", tty->termscript); | |
41ad069b EZ |
1218 | new_pos_X = save_x; |
1219 | new_pos_Y = save_y; | |
1220 | } | |
1221 | } | |
1222 | ||
1223 | set_cursor_shape: | |
41ad069b EZ |
1224 | /* Change the mouse pointer shape. */ |
1225 | IT_set_mouse_pointer (hl); | |
1226 | } | |
1227 | ||
1228 | /* Clear out the mouse-highlighted active region. | |
1229 | Redraw it un-highlighted first. */ | |
1230 | static void | |
3e1944a3 | 1231 | clear_mouse_face (struct tty_display_info *dpyinfo) |
41ad069b | 1232 | { |
6b61353c | 1233 | if (!dpyinfo->mouse_face_hidden && ! NILP (dpyinfo->mouse_face_window)) |
41ad069b EZ |
1234 | show_mouse_face (dpyinfo, 0); |
1235 | ||
1236 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
1237 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
1238 | dpyinfo->mouse_face_window = Qnil; | |
1239 | } | |
1240 | ||
1241 | /* Find the glyph matrix position of buffer position POS in window W. | |
1242 | *HPOS and *VPOS are set to the positions found. W's current glyphs | |
1243 | must be up to date. If POS is above window start return (0, 0). | |
1244 | If POS is after end of W, return end of last line in W. */ | |
1245 | static int | |
1246 | fast_find_position (struct window *w, int pos, int *hpos, int *vpos) | |
1247 | { | |
56e19ec4 | 1248 | int i, lastcol, line_start_position, maybe_next_line_p = 0; |
41ad069b | 1249 | int yb = window_text_bottom_y (w); |
56e19ec4 | 1250 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, 0), *best_row = row; |
41ad069b EZ |
1251 | |
1252 | while (row->y < yb) | |
1253 | { | |
1254 | if (row->used[TEXT_AREA]) | |
1255 | line_start_position = row->glyphs[TEXT_AREA]->charpos; | |
1256 | else | |
1257 | line_start_position = 0; | |
1258 | ||
1259 | if (line_start_position > pos) | |
1260 | break; | |
1261 | /* If the position sought is the end of the buffer, | |
1262 | don't include the blank lines at the bottom of the window. */ | |
1263 | else if (line_start_position == pos | |
1264 | && pos == BUF_ZV (XBUFFER (w->buffer))) | |
1265 | { | |
1266 | maybe_next_line_p = 1; | |
1267 | break; | |
1268 | } | |
1269 | else if (line_start_position > 0) | |
1270 | best_row = row; | |
440ffd67 EZ |
1271 | |
1272 | /* Don't overstep the last matrix row, lest we get into the | |
1273 | never-never land... */ | |
1274 | if (row->y + 1 >= yb) | |
1275 | break; | |
56e19ec4 | 1276 | |
41ad069b EZ |
1277 | ++row; |
1278 | } | |
56e19ec4 | 1279 | |
41ad069b EZ |
1280 | /* Find the right column within BEST_ROW. */ |
1281 | lastcol = 0; | |
1282 | row = best_row; | |
1283 | for (i = 0; i < row->used[TEXT_AREA]; i++) | |
1284 | { | |
1285 | struct glyph *glyph = row->glyphs[TEXT_AREA] + i; | |
1286 | int charpos; | |
1287 | ||
1288 | charpos = glyph->charpos; | |
1289 | if (charpos == pos) | |
1290 | { | |
1291 | *hpos = i; | |
1292 | *vpos = row->y; | |
1293 | return 1; | |
1294 | } | |
1295 | else if (charpos > pos) | |
1296 | break; | |
1297 | else if (charpos > 0) | |
1298 | lastcol = i; | |
1299 | } | |
1300 | ||
1301 | /* If we're looking for the end of the buffer, | |
1302 | and we didn't find it in the line we scanned, | |
1303 | use the start of the following line. */ | |
1304 | if (maybe_next_line_p) | |
1305 | { | |
1306 | ++row; | |
1307 | lastcol = 0; | |
1308 | } | |
1309 | ||
1310 | *vpos = row->y; | |
1311 | *hpos = lastcol + 1; | |
1312 | return 0; | |
1313 | } | |
1314 | ||
1315 | /* Take proper action when mouse has moved to the mode or top line of | |
1316 | window W, x-position X. MODE_LINE_P non-zero means mouse is on the | |
1317 | mode line. X is relative to the start of the text display area of | |
377df9e2 | 1318 | W, so the width of fringes and scroll bars must be subtracted |
41ad069b EZ |
1319 | to get a position relative to the start of the mode line. */ |
1320 | static void | |
1321 | IT_note_mode_line_highlight (struct window *w, int x, int mode_line_p) | |
1322 | { | |
1323 | struct frame *f = XFRAME (w->frame); | |
3e1944a3 | 1324 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
41ad069b EZ |
1325 | struct glyph_row *row; |
1326 | ||
1327 | if (mode_line_p) | |
1328 | row = MATRIX_MODE_LINE_ROW (w->current_matrix); | |
1329 | else | |
1330 | row = MATRIX_HEADER_LINE_ROW (w->current_matrix); | |
56e19ec4 | 1331 | |
41ad069b EZ |
1332 | if (row->enabled_p) |
1333 | { | |
1334 | extern Lisp_Object Qhelp_echo; | |
1335 | struct glyph *glyph, *end; | |
1336 | Lisp_Object help, map; | |
56e19ec4 | 1337 | |
41ad069b | 1338 | /* Find the glyph under X. */ |
c655f6fd KS |
1339 | glyph = (row->glyphs[TEXT_AREA] |
1340 | + x | |
6b61353c | 1341 | /* in case someone implements scroll bars some day... */ |
c655f6fd | 1342 | - WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH (w)); |
41ad069b EZ |
1343 | end = glyph + row->used[TEXT_AREA]; |
1344 | if (glyph < end | |
1345 | && STRINGP (glyph->object) | |
d5db4077 | 1346 | && STRING_INTERVALS (glyph->object) |
41ad069b | 1347 | && glyph->charpos >= 0 |
d5db4077 | 1348 | && glyph->charpos < SCHARS (glyph->object)) |
41ad069b EZ |
1349 | { |
1350 | /* If we're on a string with `help-echo' text property, | |
1351 | arrange for the help to be displayed. This is done by | |
1352 | setting the global variable help_echo to the help string. */ | |
1353 | help = Fget_text_property (make_number (glyph->charpos), | |
1354 | Qhelp_echo, glyph->object); | |
b7e80413 | 1355 | if (!NILP (help)) |
48c14970 | 1356 | { |
02d4b97d | 1357 | help_echo_string = help; |
48c14970 EZ |
1358 | XSETWINDOW (help_echo_window, w); |
1359 | help_echo_object = glyph->object; | |
1360 | help_echo_pos = glyph->charpos; | |
1361 | } | |
41ad069b EZ |
1362 | } |
1363 | } | |
1364 | } | |
1365 | ||
1366 | /* Take proper action when the mouse has moved to position X, Y on | |
1367 | frame F as regards highlighting characters that have mouse-face | |
1368 | properties. Also de-highlighting chars where the mouse was before. | |
1369 | X and Y can be negative or out of range. */ | |
1370 | static void | |
1371 | IT_note_mouse_highlight (struct frame *f, int x, int y) | |
1372 | { | |
3e1944a3 | 1373 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
02d4b97d | 1374 | enum window_part part = ON_NOTHING; |
41ad069b EZ |
1375 | Lisp_Object window; |
1376 | struct window *w; | |
1377 | ||
1378 | /* When a menu is active, don't highlight because this looks odd. */ | |
1379 | if (mouse_preempted) | |
1380 | return; | |
1381 | ||
abf10ed7 | 1382 | if (NILP (Vmouse_highlight) |
515d0d0e | 1383 | || !f->glyphs_initialized_p) |
41ad069b EZ |
1384 | return; |
1385 | ||
1386 | dpyinfo->mouse_face_mouse_x = x; | |
1387 | dpyinfo->mouse_face_mouse_y = y; | |
1388 | dpyinfo->mouse_face_mouse_frame = f; | |
1389 | ||
1390 | if (dpyinfo->mouse_face_defer) | |
1391 | return; | |
1392 | ||
1393 | if (gc_in_progress) | |
1394 | { | |
1395 | dpyinfo->mouse_face_deferred_gc = 1; | |
1396 | return; | |
1397 | } | |
1398 | ||
1399 | /* Which window is that in? */ | |
c655f6fd | 1400 | window = window_from_coordinates (f, x, y, &part, &x, &y, 0); |
41ad069b EZ |
1401 | |
1402 | /* If we were displaying active text in another window, clear that. */ | |
1403 | if (! EQ (window, dpyinfo->mouse_face_window)) | |
1404 | clear_mouse_face (dpyinfo); | |
1405 | ||
1406 | /* Not on a window -> return. */ | |
1407 | if (!WINDOWP (window)) | |
1408 | return; | |
1409 | ||
1410 | /* Convert to window-relative coordinates. */ | |
1411 | w = XWINDOW (window); | |
41ad069b | 1412 | |
02d4b97d | 1413 | if (part == ON_MODE_LINE || part == ON_HEADER_LINE) |
41ad069b EZ |
1414 | { |
1415 | /* Mouse is on the mode or top line. */ | |
02d4b97d | 1416 | IT_note_mode_line_highlight (w, x, part == ON_MODE_LINE); |
41ad069b EZ |
1417 | return; |
1418 | } | |
c655f6fd KS |
1419 | |
1420 | IT_set_mouse_pointer (0); | |
41ad069b EZ |
1421 | |
1422 | /* Are we in a window whose display is up to date? | |
1423 | And verify the buffer's text has not changed. */ | |
02d4b97d | 1424 | if (part == ON_TEXT |
41ad069b EZ |
1425 | && EQ (w->window_end_valid, w->buffer) |
1426 | && XFASTINT (w->last_modified) == BUF_MODIFF (XBUFFER (w->buffer)) | |
1427 | && (XFASTINT (w->last_overlay_modified) | |
1428 | == BUF_OVERLAY_MODIFF (XBUFFER (w->buffer)))) | |
1429 | { | |
56e19ec4 | 1430 | int pos, i, nrows = w->current_matrix->nrows; |
41ad069b EZ |
1431 | struct glyph_row *row; |
1432 | struct glyph *glyph; | |
1433 | ||
1434 | /* Find the glyph under X/Y. */ | |
1435 | glyph = NULL; | |
440ffd67 | 1436 | if (y >= 0 && y < nrows) |
41ad069b EZ |
1437 | { |
1438 | row = MATRIX_ROW (w->current_matrix, y); | |
440ffd67 EZ |
1439 | /* Give up if some row before the one we are looking for is |
1440 | not enabled. */ | |
1441 | for (i = 0; i <= y; i++) | |
1442 | if (!MATRIX_ROW (w->current_matrix, i)->enabled_p) | |
1443 | break; | |
1444 | if (i > y /* all rows upto and including the one at Y are enabled */ | |
41ad069b EZ |
1445 | && row->displays_text_p |
1446 | && x < window_box_width (w, TEXT_AREA)) | |
1447 | { | |
1448 | glyph = row->glyphs[TEXT_AREA]; | |
1449 | if (x >= row->used[TEXT_AREA]) | |
1450 | glyph = NULL; | |
1451 | else | |
1452 | { | |
1453 | glyph += x; | |
1454 | if (!BUFFERP (glyph->object)) | |
1455 | glyph = NULL; | |
1456 | } | |
1457 | } | |
1458 | } | |
1459 | ||
1460 | /* Clear mouse face if X/Y not over text. */ | |
1461 | if (glyph == NULL) | |
1462 | { | |
1463 | clear_mouse_face (dpyinfo); | |
1464 | return; | |
1465 | } | |
1466 | ||
1467 | if (!BUFFERP (glyph->object)) | |
1468 | abort (); | |
1469 | pos = glyph->charpos; | |
1470 | ||
1471 | /* Check for mouse-face and help-echo. */ | |
1472 | { | |
1473 | extern Lisp_Object Qmouse_face; | |
56e19ec4 | 1474 | Lisp_Object mouse_face, overlay, position, *overlay_vec; |
3b8c0c70 | 1475 | int noverlays, obegv, ozv; |
41ad069b | 1476 | struct buffer *obuf; |
41ad069b EZ |
1477 | |
1478 | /* If we get an out-of-range value, return now; avoid an error. */ | |
1479 | if (pos > BUF_Z (XBUFFER (w->buffer))) | |
1480 | return; | |
1481 | ||
1482 | /* Make the window's buffer temporarily current for | |
1483 | overlays_at and compute_char_face. */ | |
1484 | obuf = current_buffer; | |
1485 | current_buffer = XBUFFER (w->buffer); | |
1486 | obegv = BEGV; | |
1487 | ozv = ZV; | |
1488 | BEGV = BEG; | |
1489 | ZV = Z; | |
1490 | ||
1491 | /* Is this char mouse-active or does it have help-echo? */ | |
1492 | XSETINT (position, pos); | |
1493 | ||
1a8da670 KS |
1494 | /* Put all the overlays we want in a vector in overlay_vec. */ |
1495 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, NULL, 0); | |
f0a4139c | 1496 | /* Sort overlays into increasing priority order. */ |
41ad069b EZ |
1497 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
1498 | ||
1499 | /* Check mouse-face highlighting. */ | |
1500 | if (! (EQ (window, dpyinfo->mouse_face_window) | |
1501 | && y >= dpyinfo->mouse_face_beg_row | |
1502 | && y <= dpyinfo->mouse_face_end_row | |
1503 | && (y > dpyinfo->mouse_face_beg_row | |
1504 | || x >= dpyinfo->mouse_face_beg_col) | |
1505 | && (y < dpyinfo->mouse_face_end_row | |
1506 | || x < dpyinfo->mouse_face_end_col | |
1507 | || dpyinfo->mouse_face_past_end))) | |
1508 | { | |
1509 | /* Clear the display of the old active region, if any. */ | |
1510 | clear_mouse_face (dpyinfo); | |
1511 | ||
1512 | /* Find highest priority overlay that has a mouse-face prop. */ | |
1513 | overlay = Qnil; | |
f0a4139c | 1514 | for (i = noverlays - 1; i >= 0; --i) |
41ad069b EZ |
1515 | { |
1516 | mouse_face = Foverlay_get (overlay_vec[i], Qmouse_face); | |
1517 | if (!NILP (mouse_face)) | |
1518 | { | |
1519 | overlay = overlay_vec[i]; | |
1520 | break; | |
1521 | } | |
1522 | } | |
1523 | ||
1524 | /* If no overlay applies, get a text property. */ | |
1525 | if (NILP (overlay)) | |
1526 | mouse_face = Fget_text_property (position, Qmouse_face, | |
1527 | w->buffer); | |
1528 | ||
1529 | /* Handle the overlay case. */ | |
1530 | if (! NILP (overlay)) | |
1531 | { | |
1532 | /* Find the range of text around this char that | |
1533 | should be active. */ | |
1534 | Lisp_Object before, after; | |
0f8b27ea | 1535 | EMACS_INT ignore; |
41ad069b EZ |
1536 | |
1537 | before = Foverlay_start (overlay); | |
1538 | after = Foverlay_end (overlay); | |
1539 | /* Record this as the current active region. */ | |
1540 | fast_find_position (w, XFASTINT (before), | |
1541 | &dpyinfo->mouse_face_beg_col, | |
1542 | &dpyinfo->mouse_face_beg_row); | |
1543 | dpyinfo->mouse_face_past_end | |
1544 | = !fast_find_position (w, XFASTINT (after), | |
1545 | &dpyinfo->mouse_face_end_col, | |
1546 | &dpyinfo->mouse_face_end_row); | |
1547 | dpyinfo->mouse_face_window = window; | |
1548 | dpyinfo->mouse_face_face_id | |
1549 | = face_at_buffer_position (w, pos, 0, 0, | |
0d6239f1 KS |
1550 | &ignore, pos + 1, |
1551 | !dpyinfo->mouse_face_hidden); | |
41ad069b EZ |
1552 | |
1553 | /* Display it as active. */ | |
1554 | show_mouse_face (dpyinfo, 1); | |
1555 | } | |
1556 | /* Handle the text property case. */ | |
1557 | else if (! NILP (mouse_face)) | |
1558 | { | |
1559 | /* Find the range of text around this char that | |
1560 | should be active. */ | |
1561 | Lisp_Object before, after, beginning, end; | |
0f8b27ea | 1562 | EMACS_INT ignore; |
41ad069b EZ |
1563 | |
1564 | beginning = Fmarker_position (w->start); | |
1565 | XSETINT (end, (BUF_Z (XBUFFER (w->buffer)) | |
1566 | - XFASTINT (w->window_end_pos))); | |
1567 | before | |
1568 | = Fprevious_single_property_change (make_number (pos + 1), | |
1569 | Qmouse_face, | |
1570 | w->buffer, beginning); | |
1571 | after | |
1572 | = Fnext_single_property_change (position, Qmouse_face, | |
1573 | w->buffer, end); | |
1574 | /* Record this as the current active region. */ | |
1575 | fast_find_position (w, XFASTINT (before), | |
1576 | &dpyinfo->mouse_face_beg_col, | |
1577 | &dpyinfo->mouse_face_beg_row); | |
1578 | dpyinfo->mouse_face_past_end | |
1579 | = !fast_find_position (w, XFASTINT (after), | |
1580 | &dpyinfo->mouse_face_end_col, | |
1581 | &dpyinfo->mouse_face_end_row); | |
1582 | dpyinfo->mouse_face_window = window; | |
1583 | dpyinfo->mouse_face_face_id | |
1584 | = face_at_buffer_position (w, pos, 0, 0, | |
0d6239f1 KS |
1585 | &ignore, pos + 1, |
1586 | !dpyinfo->mouse_face_hidden); | |
41ad069b EZ |
1587 | |
1588 | /* Display it as active. */ | |
1589 | show_mouse_face (dpyinfo, 1); | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | /* Look for a `help-echo' property. */ | |
1594 | { | |
1595 | Lisp_Object help; | |
1596 | extern Lisp_Object Qhelp_echo; | |
1597 | ||
1598 | /* Check overlays first. */ | |
1599 | help = Qnil; | |
f0a4139c EZ |
1600 | for (i = noverlays - 1; i >= 0 && NILP (help); --i) |
1601 | { | |
1602 | overlay = overlay_vec[i]; | |
1603 | help = Foverlay_get (overlay, Qhelp_echo); | |
1604 | } | |
56e19ec4 | 1605 | |
b7e80413 | 1606 | if (!NILP (help)) |
48c14970 | 1607 | { |
02d4b97d | 1608 | help_echo_string = help; |
48c14970 | 1609 | help_echo_window = window; |
f0a4139c | 1610 | help_echo_object = overlay; |
48c14970 EZ |
1611 | help_echo_pos = pos; |
1612 | } | |
1613 | /* Try text properties. */ | |
1614 | else if (NILP (help) | |
1615 | && ((STRINGP (glyph->object) | |
1616 | && glyph->charpos >= 0 | |
d5db4077 | 1617 | && glyph->charpos < SCHARS (glyph->object)) |
48c14970 EZ |
1618 | || (BUFFERP (glyph->object) |
1619 | && glyph->charpos >= BEGV | |
1620 | && glyph->charpos < ZV))) | |
1621 | { | |
1622 | help = Fget_text_property (make_number (glyph->charpos), | |
1623 | Qhelp_echo, glyph->object); | |
1624 | if (!NILP (help)) | |
1625 | { | |
02d4b97d | 1626 | help_echo_string = help; |
48c14970 EZ |
1627 | help_echo_window = window; |
1628 | help_echo_object = glyph->object; | |
1629 | help_echo_pos = glyph->charpos; | |
1630 | } | |
1631 | } | |
41ad069b | 1632 | } |
56e19ec4 | 1633 | |
41ad069b EZ |
1634 | BEGV = obegv; |
1635 | ZV = ozv; | |
1636 | current_buffer = obuf; | |
1637 | } | |
1638 | } | |
1639 | } | |
1640 | ||
71f65669 | 1641 | static void |
3e1944a3 | 1642 | IT_clear_end_of_line (struct frame *f, int first_unused) |
f32d4091 KS |
1643 | { |
1644 | char *spaces, *sp; | |
56e19ec4 | 1645 | int i, j, offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 | 1646 | extern int fatal_error_in_progress; |
3e1944a3 | 1647 | struct tty_display_info *tty = FRAME_TTY (f); |
aa9ce936 | 1648 | |
2d764c78 | 1649 | if (new_pos_X >= first_unused || fatal_error_in_progress) |
aa9ce936 | 1650 | return; |
f32d4091 KS |
1651 | |
1652 | IT_set_face (0); | |
2d764c78 | 1653 | i = (j = first_unused - new_pos_X) * 2; |
3e1944a3 EZ |
1654 | if (tty->termscript) |
1655 | fprintf (tty->termscript, "<CLR:EOL[%d..%d)>", new_pos_X, first_unused); | |
f32d4091 | 1656 | spaces = sp = alloca (i); |
56e19ec4 | 1657 | |
f32d4091 | 1658 | while (--j >= 0) |
aee81730 | 1659 | { |
f32d4091 KS |
1660 | *sp++ = ' '; |
1661 | *sp++ = ScreenAttrib; | |
aee81730 RS |
1662 | } |
1663 | ||
f32d4091 | 1664 | mouse_off_maybe (); |
039274cf EZ |
1665 | dosmemput (spaces, i, (int)ScreenPrimary + offset); |
1666 | if (screen_virtual_segment) | |
1667 | dosv_refresh_virtual_screen (offset, i / 2); | |
2d764c78 EZ |
1668 | |
1669 | /* clear_end_of_line_raw on term.c leaves the cursor at first_unused. | |
1670 | Let's follow their lead, in case someone relies on this. */ | |
1671 | new_pos_X = first_unused; | |
aee81730 RS |
1672 | } |
1673 | ||
71f65669 | 1674 | static void |
3e1944a3 | 1675 | IT_clear_screen (struct frame *f) |
f32d4091 | 1676 | { |
3e1944a3 EZ |
1677 | struct tty_display_info *tty = FRAME_TTY (f); |
1678 | ||
1679 | if (tty->termscript) | |
1680 | fprintf (tty->termscript, "<CLR:SCR>"); | |
deece6f5 EZ |
1681 | /* We are sometimes called (from clear_garbaged_frames) when a new |
1682 | frame is being created, but its faces are not yet realized. In | |
1683 | such a case we cannot call IT_set_face, since it will fail to find | |
1684 | any valid faces and will abort. Instead, use the initial screen | |
1685 | colors; that should mimic what a Unix tty does, which simply clears | |
1686 | the screen with whatever default colors are in use. */ | |
1687 | if (FACE_FROM_ID (SELECTED_FRAME (), DEFAULT_FACE_ID) == NULL) | |
1688 | ScreenAttrib = (initial_screen_colors[0] << 4) | initial_screen_colors[1]; | |
1689 | else | |
1690 | IT_set_face (0); | |
f32d4091 KS |
1691 | mouse_off (); |
1692 | ScreenClear (); | |
039274cf EZ |
1693 | if (screen_virtual_segment) |
1694 | dosv_refresh_virtual_screen (0, screen_size); | |
f32d4091 KS |
1695 | new_pos_X = new_pos_Y = 0; |
1696 | } | |
1697 | ||
71f65669 | 1698 | static void |
3e1944a3 | 1699 | IT_clear_to_end (struct frame *f) |
f32d4091 | 1700 | { |
3e1944a3 EZ |
1701 | struct tty_display_info *tty = FRAME_TTY (f); |
1702 | ||
1703 | if (tty->termscript) | |
1704 | fprintf (tty->termscript, "<CLR:EOS>"); | |
f32d4091 KS |
1705 | |
1706 | while (new_pos_Y < screen_size_Y) { | |
1707 | new_pos_X = 0; | |
3e1944a3 | 1708 | IT_clear_end_of_line (f, screen_size_X); |
f32d4091 KS |
1709 | new_pos_Y++; |
1710 | } | |
1711 | } | |
1712 | ||
71f65669 | 1713 | static void |
3e1944a3 | 1714 | IT_cursor_to (struct frame *f, int y, int x) |
f32d4091 | 1715 | { |
3e1944a3 EZ |
1716 | struct tty_display_info *tty = FRAME_TTY (f); |
1717 | ||
1718 | if (tty->termscript) | |
1719 | fprintf (tty->termscript, "\n<XY=%dx%d>", x, y); | |
f32d4091 KS |
1720 | new_pos_X = x; |
1721 | new_pos_Y = y; | |
1722 | } | |
1723 | ||
fc171623 KH |
1724 | static int cursor_cleared; |
1725 | ||
d1d5dc19 | 1726 | static void |
fc171623 KH |
1727 | IT_display_cursor (int on) |
1728 | { | |
3e1944a3 EZ |
1729 | struct tty_display_info *tty = CURTTY (); |
1730 | ||
fc171623 KH |
1731 | if (on && cursor_cleared) |
1732 | { | |
1733 | ScreenSetCursor (current_pos_Y, current_pos_X); | |
1734 | cursor_cleared = 0; | |
b04021eb EZ |
1735 | if (tty->termscript) |
1736 | fprintf (tty->termscript, "\nCURSOR ON"); | |
fc171623 KH |
1737 | } |
1738 | else if (!on && !cursor_cleared) | |
1739 | { | |
1740 | ScreenSetCursor (-1, -1); | |
1741 | cursor_cleared = 1; | |
b04021eb EZ |
1742 | if (tty->termscript) |
1743 | fprintf (tty->termscript, "\nCURSOR OFF"); | |
fc171623 KH |
1744 | } |
1745 | } | |
1746 | ||
1747 | /* Emacs calls cursor-movement functions a lot when it updates the | |
1748 | display (probably a legacy of old terminals where you cannot | |
1749 | update a screen line without first moving the cursor there). | |
1750 | However, cursor movement is expensive on MSDOS (it calls a slow | |
1751 | BIOS function and requires 2 mode switches), while actual screen | |
1752 | updates access the video memory directly and don't depend on | |
1753 | cursor position. To avoid slowing down the redisplay, we cheat: | |
1754 | all functions that move the cursor only set internal variables | |
1755 | which record the cursor position, whereas the cursor is only | |
1756 | moved to its final position whenever screen update is complete. | |
1757 | ||
1758 | `IT_cmgoto' is called from the keyboard reading loop and when the | |
1759 | frame update is complete. This means that we are ready for user | |
1760 | input, so we update the cursor position to show where the point is, | |
1761 | and also make the mouse pointer visible. | |
1762 | ||
1763 | Special treatment is required when the cursor is in the echo area, | |
1764 | to put the cursor at the end of the text displayed there. */ | |
1765 | ||
71f65669 EZ |
1766 | static void |
1767 | IT_cmgoto (FRAME_PTR f) | |
fc171623 KH |
1768 | { |
1769 | /* Only set the cursor to where it should be if the display is | |
1770 | already in sync with the window contents. */ | |
2d764c78 | 1771 | int update_cursor_pos = 1; /* MODIFF == unchanged_modified; */ |
3e1944a3 | 1772 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 EZ |
1773 | |
1774 | /* FIXME: This needs to be rewritten for the new redisplay, or | |
1775 | removed. */ | |
1776 | #if 0 | |
06da1de1 EZ |
1777 | static int previous_pos_X = -1; |
1778 | ||
2d764c78 EZ |
1779 | update_cursor_pos = 1; /* temporary!!! */ |
1780 | ||
06da1de1 EZ |
1781 | /* If the display is in sync, forget any previous knowledge about |
1782 | cursor position. This is primarily for unexpected events like | |
1783 | C-g in the minibuffer. */ | |
1784 | if (update_cursor_pos && previous_pos_X >= 0) | |
1785 | previous_pos_X = -1; | |
1786 | /* If we are in the echo area, put the cursor at the | |
1787 | end of the echo area message. */ | |
fc171623 | 1788 | if (!update_cursor_pos |
c655f6fd | 1789 | && WINDOW_TOP_EDGE_LINE (XWINDOW (FRAME_MINIBUF_WINDOW (f))) <= new_pos_Y) |
fc171623 | 1790 | { |
06da1de1 EZ |
1791 | int tem_X = current_pos_X, dummy; |
1792 | ||
1793 | if (echo_area_glyphs) | |
1794 | { | |
1795 | tem_X = echo_area_glyphs_length; | |
1796 | /* Save current cursor position, to be restored after the | |
1797 | echo area message is erased. Only remember one level | |
1798 | of previous cursor position. */ | |
1799 | if (previous_pos_X == -1) | |
1800 | ScreenGetCursor (&dummy, &previous_pos_X); | |
1801 | } | |
1802 | else if (previous_pos_X >= 0) | |
1803 | { | |
1804 | /* We wind up here after the echo area message is erased. | |
1805 | Restore the cursor position we remembered above. */ | |
1806 | tem_X = previous_pos_X; | |
1807 | previous_pos_X = -1; | |
1808 | } | |
9a599a60 | 1809 | |
06da1de1 | 1810 | if (current_pos_X != tem_X) |
9a599a60 EZ |
1811 | { |
1812 | new_pos_X = tem_X; | |
1813 | update_cursor_pos = 1; | |
1814 | } | |
fc171623 | 1815 | } |
2d764c78 | 1816 | #endif |
fc171623 KH |
1817 | |
1818 | if (update_cursor_pos | |
1819 | && (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y)) | |
1820 | { | |
1821 | ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X); | |
3e1944a3 EZ |
1822 | if (tty->termscript) |
1823 | fprintf (tty->termscript, "\n<CURSOR:%dx%d>", current_pos_X, current_pos_Y); | |
fc171623 KH |
1824 | } |
1825 | ||
1826 | /* Maybe cursor is invisible, so make it visible. */ | |
1827 | IT_display_cursor (1); | |
1828 | ||
1829 | /* Mouse pointer should be always visible if we are waiting for | |
1830 | keyboard input. */ | |
1831 | if (!mouse_visible) | |
1832 | mouse_on (); | |
1833 | } | |
1834 | ||
71f65669 | 1835 | static void |
41ad069b | 1836 | IT_update_begin (struct frame *f) |
f32d4091 | 1837 | { |
3e1944a3 | 1838 | struct tty_display_info *display_info = FRAME_X_DISPLAY_INFO (f); |
b9f80d41 | 1839 | struct frame *mouse_face_frame = display_info->mouse_face_mouse_frame; |
41ad069b | 1840 | |
7ccd1daf EZ |
1841 | if (display_info->termscript) |
1842 | fprintf (display_info->termscript, "\n\n<UPDATE_BEGIN"); | |
1843 | ||
41ad069b EZ |
1844 | BLOCK_INPUT; |
1845 | ||
b9f80d41 | 1846 | if (f && f == mouse_face_frame) |
41ad069b EZ |
1847 | { |
1848 | /* Don't do highlighting for mouse motion during the update. */ | |
1849 | display_info->mouse_face_defer = 1; | |
1850 | ||
1851 | /* If F needs to be redrawn, simply forget about any prior mouse | |
1852 | highlighting. */ | |
1853 | if (FRAME_GARBAGED_P (f)) | |
1854 | display_info->mouse_face_window = Qnil; | |
1855 | ||
1856 | /* Can we tell that this update does not affect the window | |
1857 | where the mouse highlight is? If so, no need to turn off. | |
48c14970 EZ |
1858 | Likewise, don't do anything if none of the enabled rows |
1859 | contains glyphs highlighted in mouse face. */ | |
8ccb9a54 EZ |
1860 | if (!NILP (display_info->mouse_face_window) |
1861 | && WINDOWP (display_info->mouse_face_window)) | |
41ad069b EZ |
1862 | { |
1863 | struct window *w = XWINDOW (display_info->mouse_face_window); | |
1864 | int i; | |
1865 | ||
8ccb9a54 EZ |
1866 | /* If the mouse highlight is in the window that was deleted |
1867 | (e.g., if it was popped by completion), clear highlight | |
1868 | unconditionally. */ | |
1869 | if (NILP (w->buffer)) | |
1870 | display_info->mouse_face_window = Qnil; | |
1871 | else | |
1872 | { | |
1873 | for (i = 0; i < w->desired_matrix->nrows; ++i) | |
48c14970 EZ |
1874 | if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i) |
1875 | && MATRIX_ROW (w->current_matrix, i)->mouse_face_p) | |
8ccb9a54 EZ |
1876 | break; |
1877 | } | |
41ad069b | 1878 | |
8ccb9a54 | 1879 | if (NILP (w->buffer) || i < w->desired_matrix->nrows) |
41ad069b EZ |
1880 | clear_mouse_face (display_info); |
1881 | } | |
1882 | } | |
b9f80d41 | 1883 | else if (mouse_face_frame && !FRAME_LIVE_P (mouse_face_frame)) |
41ad069b EZ |
1884 | { |
1885 | /* If the frame with mouse highlight was deleted, invalidate the | |
1886 | highlight info. */ | |
1887 | display_info->mouse_face_beg_row = display_info->mouse_face_beg_col = -1; | |
1888 | display_info->mouse_face_end_row = display_info->mouse_face_end_col = -1; | |
1889 | display_info->mouse_face_window = Qnil; | |
1890 | display_info->mouse_face_deferred_gc = 0; | |
1891 | display_info->mouse_face_mouse_frame = NULL; | |
1892 | } | |
1893 | ||
1894 | UNBLOCK_INPUT; | |
f32d4091 KS |
1895 | } |
1896 | ||
71f65669 | 1897 | static void |
41ad069b | 1898 | IT_update_end (struct frame *f) |
f32d4091 | 1899 | { |
7ccd1daf EZ |
1900 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
1901 | ||
1902 | if (dpyinfo->termscript) | |
1903 | fprintf (dpyinfo->termscript, "\n<UPDATE_END\n"); | |
1904 | dpyinfo->mouse_face_defer = 0; | |
41ad069b EZ |
1905 | } |
1906 | ||
1907 | static void | |
1908 | IT_frame_up_to_date (struct frame *f) | |
1909 | { | |
3e1944a3 | 1910 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
0c3cfc51 EZ |
1911 | Lisp_Object new_cursor, frame_desired_cursor; |
1912 | struct window *sw; | |
41ad069b EZ |
1913 | |
1914 | if (dpyinfo->mouse_face_deferred_gc | |
b9f80d41 | 1915 | || (f && f == dpyinfo->mouse_face_mouse_frame)) |
41ad069b EZ |
1916 | { |
1917 | BLOCK_INPUT; | |
1918 | if (dpyinfo->mouse_face_mouse_frame) | |
1919 | IT_note_mouse_highlight (dpyinfo->mouse_face_mouse_frame, | |
1920 | dpyinfo->mouse_face_mouse_x, | |
1921 | dpyinfo->mouse_face_mouse_y); | |
1922 | dpyinfo->mouse_face_deferred_gc = 0; | |
1923 | UNBLOCK_INPUT; | |
1924 | } | |
1925 | ||
0c3cfc51 EZ |
1926 | /* Set the cursor type to whatever they wanted. In a minibuffer |
1927 | window, we want the cursor to appear only if we are reading input | |
1928 | from this window, and we want the cursor to be taken from the | |
1929 | frame parameters. For the selected window, we use either its | |
1930 | buffer-local value or the value from the frame parameters if the | |
1931 | buffer doesn't define its local value for the cursor type. */ | |
1932 | sw = XWINDOW (f->selected_window); | |
1933 | frame_desired_cursor = Fcdr (Fassq (Qcursor_type, f->param_alist)); | |
1934 | if (cursor_in_echo_area | |
1935 | && FRAME_HAS_MINIBUF_P (f) | |
1936 | && EQ (FRAME_MINIBUF_WINDOW (f), echo_area_window) | |
1937 | && sw == XWINDOW (echo_area_window)) | |
1938 | new_cursor = frame_desired_cursor; | |
1939 | else | |
1940 | { | |
1941 | struct buffer *b = XBUFFER (sw->buffer); | |
1942 | ||
1943 | if (EQ (b->cursor_type, Qt)) | |
1944 | new_cursor = frame_desired_cursor; | |
1945 | else if (NILP (b->cursor_type)) /* nil means no cursor */ | |
1946 | new_cursor = Fcons (Qbar, make_number (0)); | |
1947 | else | |
1948 | new_cursor = b->cursor_type; | |
1949 | } | |
1950 | ||
1951 | IT_set_cursor_type (f, new_cursor); | |
8ba01a32 | 1952 | |
41ad069b | 1953 | IT_cmgoto (f); /* position cursor when update is done */ |
f32d4091 | 1954 | } |
1b94449f | 1955 | |
c77f6f1b EZ |
1956 | /* Copy LEN glyphs displayed on a single line whose vertical position |
1957 | is YPOS, beginning at horizontal position XFROM to horizontal | |
1958 | position XTO, by moving blocks in the video memory. Used by | |
1959 | functions that insert and delete glyphs. */ | |
1960 | static void | |
1961 | IT_copy_glyphs (int xfrom, int xto, size_t len, int ypos) | |
1962 | { | |
1963 | /* The offsets of source and destination relative to the | |
1964 | conventional memorty selector. */ | |
1965 | int from = 2 * (xfrom + screen_size_X * ypos) + ScreenPrimary; | |
1966 | int to = 2 * (xto + screen_size_X * ypos) + ScreenPrimary; | |
1967 | ||
1968 | if (from == to || len <= 0) | |
1969 | return; | |
1970 | ||
1971 | _farsetsel (_dos_ds); | |
1972 | ||
1973 | /* The source and destination might overlap, so we need to move | |
1974 | glyphs non-destructively. */ | |
1975 | if (from > to) | |
1976 | { | |
1977 | for ( ; len; from += 2, to += 2, len--) | |
1978 | _farnspokew (to, _farnspeekw (from)); | |
1979 | } | |
1980 | else | |
1981 | { | |
1982 | from += (len - 1) * 2; | |
1983 | to += (len - 1) * 2; | |
1984 | for ( ; len; from -= 2, to -= 2, len--) | |
1985 | _farnspokew (to, _farnspeekw (from)); | |
1986 | } | |
1987 | if (screen_virtual_segment) | |
1988 | dosv_refresh_virtual_screen (ypos * screen_size_X * 2, screen_size_X); | |
1989 | } | |
1990 | ||
1991 | /* Insert and delete glyphs. */ | |
aa9ce936 | 1992 | static void |
3e1944a3 EZ |
1993 | IT_insert_glyphs (f, start, len) |
1994 | struct frame *f; | |
c77f6f1b | 1995 | register struct glyph *start; |
aa9ce936 EZ |
1996 | register int len; |
1997 | { | |
c77f6f1b EZ |
1998 | int shift_by_width = screen_size_X - (new_pos_X + len); |
1999 | ||
2000 | /* Shift right the glyphs from the nominal cursor position to the | |
2001 | end of this line. */ | |
2002 | IT_copy_glyphs (new_pos_X, new_pos_X + len, shift_by_width, new_pos_Y); | |
2003 | ||
2004 | /* Now write the glyphs to be inserted. */ | |
3e1944a3 | 2005 | IT_write_glyphs (f, start, len); |
aa9ce936 EZ |
2006 | } |
2007 | ||
2008 | static void | |
3e1944a3 EZ |
2009 | IT_delete_glyphs (f, n) |
2010 | struct frame *f; | |
aa9ce936 EZ |
2011 | register int n; |
2012 | { | |
2013 | abort (); | |
2014 | } | |
2015 | ||
211c7152 | 2016 | /* set-window-configuration on window.c needs this. */ |
3bb1f22f RS |
2017 | void |
2018 | x_set_menu_bar_lines (f, value, oldval) | |
2019 | struct frame *f; | |
2020 | Lisp_Object value, oldval; | |
2021 | { | |
211c7152 EZ |
2022 | set_menu_bar_lines (f, value, oldval); |
2023 | } | |
3bb1f22f | 2024 | |
984f5aaa | 2025 | /* This was copied from xfaces.c */ |
3bb1f22f | 2026 | |
984f5aaa EZ |
2027 | extern Lisp_Object Qbackground_color; |
2028 | extern Lisp_Object Qforeground_color; | |
8ba01a32 | 2029 | Lisp_Object Qreverse; |
211c7152 | 2030 | extern Lisp_Object Qtitle; |
3bb1f22f | 2031 | |
48ffe371 RS |
2032 | /* IT_set_terminal_modes is called when emacs is started, |
2033 | resumed, and whenever the screen is redrawn! */ | |
f32d4091 | 2034 | |
71f65669 | 2035 | static void |
3e1944a3 | 2036 | IT_set_terminal_modes (struct terminal *term) |
f32d4091 | 2037 | { |
3e1944a3 EZ |
2038 | struct tty_display_info *tty; |
2039 | ||
2040 | /* If called with initial terminal, it's too early to do anything | |
2041 | useful. */ | |
2042 | if (term->type == output_initial) | |
2043 | return; | |
2044 | ||
2045 | tty = term->display_info.tty; | |
2046 | ||
2047 | if (tty->termscript) | |
2048 | fprintf (tty->termscript, "\n<SET_TERM>"); | |
f32d4091 KS |
2049 | |
2050 | screen_size_X = ScreenCols (); | |
2051 | screen_size_Y = ScreenRows (); | |
2052 | screen_size = screen_size_X * screen_size_Y; | |
56e19ec4 | 2053 | |
f32d4091 KS |
2054 | new_pos_X = new_pos_Y = 0; |
2055 | current_pos_X = current_pos_Y = -1; | |
2056 | ||
2057 | if (term_setup_done) | |
2058 | return; | |
2059 | term_setup_done = 1; | |
56e19ec4 | 2060 | |
f32d4091 KS |
2061 | startup_screen_size_X = screen_size_X; |
2062 | startup_screen_size_Y = screen_size_Y; | |
c9adab25 | 2063 | startup_screen_attrib = ScreenAttrib; |
f32d4091 | 2064 | |
039274cf EZ |
2065 | #if __DJGPP__ > 1 |
2066 | /* Is DOS/V (or any other RSIS software which relocates | |
2067 | the screen) installed? */ | |
2068 | { | |
2069 | unsigned short es_value; | |
2070 | __dpmi_regs regs; | |
2071 | ||
2072 | regs.h.ah = 0xfe; /* get relocated screen address */ | |
2073 | if (ScreenPrimary == 0xb0000UL || ScreenPrimary == 0xb8000UL) | |
2074 | regs.x.es = (ScreenPrimary >> 4) & 0xffff; | |
2075 | else if (screen_old_address) /* already switched to Japanese mode once */ | |
2076 | regs.x.es = (screen_old_address >> 4) & 0xffff; | |
2077 | else | |
2078 | regs.x.es = ScreenMode () == 7 ? 0xb000 : 0xb800; | |
2079 | regs.x.di = 0; | |
2080 | es_value = regs.x.es; | |
2081 | __dpmi_int (0x10, ®s); | |
2082 | ||
d1d5dc19 | 2083 | if (regs.x.es != es_value) |
039274cf | 2084 | { |
d1d5dc19 EZ |
2085 | /* screen_old_address is only set if ScreenPrimary does NOT |
2086 | already point to the relocated buffer address returned by | |
2087 | the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets | |
2088 | ScreenPrimary to that address at startup under DOS/V. */ | |
2089 | if (regs.x.es != (ScreenPrimary >> 4) & 0xffff) | |
2090 | screen_old_address = ScreenPrimary; | |
039274cf EZ |
2091 | screen_virtual_segment = regs.x.es; |
2092 | screen_virtual_offset = regs.x.di; | |
2093 | ScreenPrimary = (screen_virtual_segment << 4) + screen_virtual_offset; | |
2094 | } | |
2095 | } | |
2096 | #endif /* __DJGPP__ > 1 */ | |
2097 | ||
f32d4091 KS |
2098 | ScreenGetCursor (&startup_pos_Y, &startup_pos_X); |
2099 | ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2)); | |
2100 | ||
76ac1508 | 2101 | bright_bg (); |
f32d4091 KS |
2102 | } |
2103 | ||
48ffe371 RS |
2104 | /* IT_reset_terminal_modes is called when emacs is |
2105 | suspended or killed. */ | |
f32d4091 | 2106 | |
71f65669 | 2107 | static void |
3e1944a3 | 2108 | IT_reset_terminal_modes (struct terminal *term) |
f32d4091 | 2109 | { |
c9adab25 KH |
2110 | int display_row_start = (int) ScreenPrimary; |
2111 | int saved_row_len = startup_screen_size_X * 2; | |
56e19ec4 | 2112 | int update_row_len = ScreenCols () * 2, current_rows = ScreenRows (); |
c9adab25 KH |
2113 | int to_next_row = update_row_len; |
2114 | unsigned char *saved_row = startup_screen_buffer; | |
56e19ec4 | 2115 | int cursor_pos_X = ScreenCols () - 1, cursor_pos_Y = ScreenRows () - 1; |
3e1944a3 | 2116 | struct tty_display_info *tty = term->display_info.tty; |
c9adab25 | 2117 | |
3e1944a3 EZ |
2118 | if (tty->termscript) |
2119 | fprintf (tty->termscript, "\n<RESET_TERM>"); | |
f32d4091 | 2120 | |
f32d4091 KS |
2121 | if (!term_setup_done) |
2122 | return; | |
56e19ec4 | 2123 | |
c9adab25 | 2124 | mouse_off (); |
b36701cc RS |
2125 | |
2126 | /* Leave the video system in the same state as we found it, | |
2127 | as far as the blink/bright-background bit is concerned. */ | |
2128 | maybe_enable_blinking (); | |
06b1ea13 | 2129 | |
c9adab25 KH |
2130 | /* We have a situation here. |
2131 | We cannot just do ScreenUpdate(startup_screen_buffer) because | |
2132 | the luser could have changed screen dimensions inside Emacs | |
2133 | and failed (or didn't want) to restore them before killing | |
2134 | Emacs. ScreenUpdate() uses the *current* screen dimensions and | |
2135 | thus will happily use memory outside what was allocated for | |
2136 | `startup_screen_buffer'. | |
2137 | Thus we only restore as much as the current screen dimensions | |
2138 | can hold, and clear the rest (if the saved screen is smaller than | |
2139 | the current) with the color attribute saved at startup. The cursor | |
2140 | is also restored within the visible dimensions. */ | |
2141 | ||
2142 | ScreenAttrib = startup_screen_attrib; | |
c9adab25 | 2143 | |
06b1ea13 EZ |
2144 | /* Don't restore the screen if we are exiting less than 2 seconds |
2145 | after startup: we might be crashing, and the screen might show | |
2146 | some vital clues to what's wrong. */ | |
2147 | if (clock () - startup_time >= 2*CLOCKS_PER_SEC) | |
c9adab25 | 2148 | { |
06b1ea13 | 2149 | ScreenClear (); |
039274cf | 2150 | if (screen_virtual_segment) |
06b1ea13 EZ |
2151 | dosv_refresh_virtual_screen (0, screen_size); |
2152 | ||
2153 | if (update_row_len > saved_row_len) | |
2154 | update_row_len = saved_row_len; | |
2155 | if (current_rows > startup_screen_size_Y) | |
2156 | current_rows = startup_screen_size_Y; | |
2157 | ||
3e1944a3 EZ |
2158 | if (tty->termscript) |
2159 | fprintf (tty->termscript, "<SCREEN RESTORED (dimensions=%dx%d)>\n", | |
06b1ea13 EZ |
2160 | update_row_len / 2, current_rows); |
2161 | ||
2162 | while (current_rows--) | |
2163 | { | |
2164 | dosmemput (saved_row, update_row_len, display_row_start); | |
2165 | if (screen_virtual_segment) | |
2166 | dosv_refresh_virtual_screen (display_row_start - ScreenPrimary, | |
2167 | update_row_len / 2); | |
2168 | saved_row += saved_row_len; | |
2169 | display_row_start += to_next_row; | |
2170 | } | |
c9adab25 KH |
2171 | } |
2172 | if (startup_pos_X < cursor_pos_X) | |
2173 | cursor_pos_X = startup_pos_X; | |
2174 | if (startup_pos_Y < cursor_pos_Y) | |
2175 | cursor_pos_Y = startup_pos_Y; | |
2176 | ||
2177 | ScreenSetCursor (cursor_pos_Y, cursor_pos_X); | |
2178 | xfree (startup_screen_buffer); | |
3e1944a3 | 2179 | startup_screen_buffer = NULL; |
f32d4091 KS |
2180 | |
2181 | term_setup_done = 0; | |
2182 | } | |
2183 | ||
71f65669 | 2184 | static void |
3e1944a3 | 2185 | IT_set_terminal_window (struct frame *f, int foo) |
f32d4091 KS |
2186 | { |
2187 | } | |
2188 | ||
2d764c78 EZ |
2189 | /* Remember the screen colors of the curent frame, to serve as the |
2190 | default colors for newly-created frames. */ | |
2d764c78 EZ |
2191 | DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors, |
2192 | Smsdos_remember_default_colors, 1, 1, 0, | |
70da46c3 | 2193 | doc: /* Remember the screen colors of the current frame. */) |
2d764c78 EZ |
2194 | (frame) |
2195 | Lisp_Object frame; | |
2196 | { | |
2d764c78 EZ |
2197 | struct frame *f; |
2198 | ||
b7826503 | 2199 | CHECK_FRAME (frame); |
f12dae2f | 2200 | f = XFRAME (frame); |
2d764c78 | 2201 | |
ff12cd1d EZ |
2202 | /* This function is called after applying default-frame-alist to the |
2203 | initial frame. At that time, if reverse-colors option was | |
2204 | specified in default-frame-alist, it was already applied, and | |
f12dae2f EZ |
2205 | frame colors are reversed. */ |
2206 | initial_screen_colors[0] = FRAME_FOREGROUND_PIXEL (f); | |
2207 | initial_screen_colors[1] = FRAME_BACKGROUND_PIXEL (f); | |
2d764c78 EZ |
2208 | } |
2209 | ||
f32d4091 | 2210 | void |
3bb1f22f | 2211 | IT_set_frame_parameters (f, alist) |
c77f6f1b | 2212 | struct frame *f; |
f32d4091 KS |
2213 | Lisp_Object alist; |
2214 | { | |
2215 | Lisp_Object tail; | |
56e19ec4 | 2216 | int i, j, length = XINT (Flength (alist)); |
db722735 RS |
2217 | Lisp_Object *parms |
2218 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2219 | Lisp_Object *values | |
2220 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2d764c78 | 2221 | /* Do we have to reverse the foreground and background colors? */ |
8ba01a32 | 2222 | int reverse = EQ (Fcdr (Fassq (Qreverse, f->param_alist)), Qt); |
56e19ec4 | 2223 | int need_to_reverse, was_reverse = reverse; |
2d764c78 | 2224 | int redraw = 0, fg_set = 0, bg_set = 0; |
56e19ec4 | 2225 | unsigned long orig_fg, orig_bg; |
546701f5 | 2226 | Lisp_Object frame_bg, frame_fg; |
53704a07 | 2227 | extern Lisp_Object Qdefault, QCforeground, QCbackground; |
3e1944a3 | 2228 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 EZ |
2229 | |
2230 | /* If we are creating a new frame, begin with the original screen colors | |
2231 | used for the initial frame. */ | |
238a44a8 | 2232 | if (EQ (alist, Vdefault_frame_alist) |
2d764c78 EZ |
2233 | && initial_screen_colors[0] != -1 && initial_screen_colors[1] != -1) |
2234 | { | |
2235 | FRAME_FOREGROUND_PIXEL (f) = initial_screen_colors[0]; | |
2236 | FRAME_BACKGROUND_PIXEL (f) = initial_screen_colors[1]; | |
f12dae2f | 2237 | init_frame_faces (f); |
2d764c78 EZ |
2238 | } |
2239 | orig_fg = FRAME_FOREGROUND_PIXEL (f); | |
2240 | orig_bg = FRAME_BACKGROUND_PIXEL (f); | |
546701f5 EZ |
2241 | frame_fg = Fcdr (Fassq (Qforeground_color, f->param_alist)); |
2242 | frame_bg = Fcdr (Fassq (Qbackground_color, f->param_alist)); | |
2243 | /* frame_fg and frame_bg could be nil if, for example, | |
2244 | f->param_alist is nil, e.g. if we are called from | |
2245 | Fmake_terminal_frame. */ | |
2246 | if (NILP (frame_fg)) | |
2247 | frame_fg = build_string (unspecified_fg); | |
2248 | if (NILP (frame_bg)) | |
2249 | frame_bg = build_string (unspecified_bg); | |
db722735 RS |
2250 | |
2251 | /* Extract parm names and values into those vectors. */ | |
2252 | i = 0; | |
f32d4091 KS |
2253 | for (tail = alist; CONSP (tail); tail = Fcdr (tail)) |
2254 | { | |
db722735 | 2255 | Lisp_Object elt; |
f32d4091 KS |
2256 | |
2257 | elt = Fcar (tail); | |
db722735 | 2258 | parms[i] = Fcar (elt); |
b7826503 | 2259 | CHECK_SYMBOL (parms[i]); |
db722735 RS |
2260 | values[i] = Fcdr (elt); |
2261 | i++; | |
2262 | } | |
2263 | ||
2d764c78 | 2264 | j = i; |
db722735 | 2265 | |
2d764c78 EZ |
2266 | for (i = 0; i < j; i++) |
2267 | { | |
1e21fe48 EZ |
2268 | Lisp_Object prop, val; |
2269 | ||
2270 | prop = parms[i]; | |
2271 | val = values[i]; | |
2d764c78 | 2272 | |
8ba01a32 | 2273 | if (EQ (prop, Qreverse)) |
2d764c78 EZ |
2274 | reverse = EQ (val, Qt); |
2275 | } | |
546701f5 EZ |
2276 | |
2277 | need_to_reverse = reverse && !was_reverse; | |
3e1944a3 EZ |
2278 | if (tty->termscript && need_to_reverse) |
2279 | fprintf (tty->termscript, "<INVERSE-VIDEO>\n"); | |
2d764c78 EZ |
2280 | |
2281 | /* Now process the alist elements in reverse of specified order. */ | |
db722735 RS |
2282 | for (i--; i >= 0; i--) |
2283 | { | |
56e19ec4 | 2284 | Lisp_Object prop, val, frame; |
1e21fe48 EZ |
2285 | |
2286 | prop = parms[i]; | |
2287 | val = values[i]; | |
f32d4091 | 2288 | |
4e825084 | 2289 | if (EQ (prop, Qforeground_color)) |
f32d4091 | 2290 | { |
546701f5 | 2291 | unsigned long new_color = load_color (f, NULL, val, need_to_reverse |
2d764c78 EZ |
2292 | ? LFACE_BACKGROUND_INDEX |
2293 | : LFACE_FOREGROUND_INDEX); | |
3b620731 EZ |
2294 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2295 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2296 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2297 | { |
546701f5 | 2298 | FRAME_FOREGROUND_PIXEL (f) = new_color; |
1e21fe48 EZ |
2299 | /* Make sure the foreground of the default face for this |
2300 | frame is changed as well. */ | |
2301 | XSETFRAME (frame, f); | |
f12dae2f EZ |
2302 | Finternal_set_lisp_face_attribute (Qdefault, QCforeground, |
2303 | val, frame); | |
2304 | fg_set = 1; | |
f32d4091 | 2305 | redraw = 1; |
3e1944a3 EZ |
2306 | if (tty->termscript) |
2307 | fprintf (tty->termscript, "<FGCOLOR %lu>\n", new_color); | |
f32d4091 KS |
2308 | } |
2309 | } | |
4e825084 | 2310 | else if (EQ (prop, Qbackground_color)) |
f32d4091 | 2311 | { |
546701f5 | 2312 | unsigned long new_color = load_color (f, NULL, val, need_to_reverse |
2d764c78 EZ |
2313 | ? LFACE_FOREGROUND_INDEX |
2314 | : LFACE_BACKGROUND_INDEX); | |
3b620731 EZ |
2315 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2316 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2317 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2318 | { |
546701f5 | 2319 | FRAME_BACKGROUND_PIXEL (f) = new_color; |
1e21fe48 EZ |
2320 | /* Make sure the background of the default face for this |
2321 | frame is changed as well. */ | |
2322 | XSETFRAME (frame, f); | |
f12dae2f EZ |
2323 | Finternal_set_lisp_face_attribute (Qdefault, QCbackground, |
2324 | val, frame); | |
2325 | bg_set = 1; | |
f32d4091 | 2326 | redraw = 1; |
3e1944a3 EZ |
2327 | if (tty->termscript) |
2328 | fprintf (tty->termscript, "<BGCOLOR %lu>\n", new_color); | |
f32d4091 KS |
2329 | } |
2330 | } | |
211c7152 EZ |
2331 | else if (EQ (prop, Qtitle)) |
2332 | { | |
2333 | x_set_title (f, val); | |
3e1944a3 EZ |
2334 | if (tty->termscript) |
2335 | fprintf (tty->termscript, "<TITLE: %s>\n", SDATA (val)); | |
211c7152 | 2336 | } |
8ba01a32 EZ |
2337 | else if (EQ (prop, Qcursor_type)) |
2338 | { | |
2339 | IT_set_cursor_type (f, val); | |
3e1944a3 EZ |
2340 | if (tty->termscript) |
2341 | fprintf (tty->termscript, "<CTYPE: %s>\n", | |
a0738471 EZ |
2342 | EQ (val, Qbar) || EQ (val, Qhbar) |
2343 | || CONSP (val) && (EQ (XCAR (val), Qbar) | |
2344 | || EQ (XCAR (val), Qhbar)) | |
8ba01a32 EZ |
2345 | ? "bar" : "box"); |
2346 | } | |
3e1944a3 EZ |
2347 | else if (EQ (prop, Qtty_type)) |
2348 | { | |
2349 | internal_terminal_init (); | |
2350 | if (tty->termscript) | |
2351 | fprintf (tty->termscript, "<TERM_INIT done, TTY_TYPE: %.*s>\n", | |
2352 | SBYTES (val), SDATA (val)); | |
2353 | } | |
db722735 | 2354 | store_frame_param (f, prop, val); |
2d764c78 | 2355 | } |
db722735 | 2356 | |
2d764c78 EZ |
2357 | /* If they specified "reverse", but not the colors, we need to swap |
2358 | the current frame colors. */ | |
546701f5 | 2359 | if (need_to_reverse) |
2d764c78 | 2360 | { |
1e21fe48 EZ |
2361 | Lisp_Object frame; |
2362 | ||
2d764c78 EZ |
2363 | if (!fg_set) |
2364 | { | |
1e21fe48 | 2365 | XSETFRAME (frame, f); |
ff12cd1d EZ |
2366 | Finternal_set_lisp_face_attribute (Qdefault, QCforeground, |
2367 | tty_color_name (f, orig_bg), | |
53704a07 | 2368 | frame); |
2d764c78 EZ |
2369 | redraw = 1; |
2370 | } | |
2371 | if (!bg_set) | |
2372 | { | |
1e21fe48 | 2373 | XSETFRAME (frame, f); |
ff12cd1d EZ |
2374 | Finternal_set_lisp_face_attribute (Qdefault, QCbackground, |
2375 | tty_color_name (f, orig_fg), | |
53704a07 | 2376 | frame); |
2d764c78 EZ |
2377 | redraw = 1; |
2378 | } | |
f32d4091 KS |
2379 | } |
2380 | ||
2381 | if (redraw) | |
2382 | { | |
2d764c78 EZ |
2383 | face_change_count++; /* forces xdisp.c to recompute basic faces */ |
2384 | if (f == SELECTED_FRAME()) | |
3bb1f22f | 2385 | redraw_frame (f); |
f32d4091 KS |
2386 | } |
2387 | } | |
2388 | ||
a7cf9151 EZ |
2389 | extern void init_frame_faces (FRAME_PTR); |
2390 | ||
f32d4091 KS |
2391 | #endif /* !HAVE_X_WINDOWS */ |
2392 | ||
2393 | ||
48ffe371 RS |
2394 | /* Do we need the internal terminal? */ |
2395 | ||
f32d4091 KS |
2396 | void |
2397 | internal_terminal_init () | |
2398 | { | |
2306a735 | 2399 | static int init_needed = 1; |
56e19ec4 | 2400 | char *term = getenv ("TERM"), *colors; |
2d764c78 | 2401 | struct frame *sf = SELECTED_FRAME(); |
3e1944a3 | 2402 | struct tty_display_info *tty; |
f32d4091 KS |
2403 | |
2404 | #ifdef HAVE_X_WINDOWS | |
2405 | if (!inhibit_window_system) | |
2406 | return; | |
2407 | #endif | |
2408 | ||
3e1944a3 EZ |
2409 | /* If this is the initial terminal, we are done here. */ |
2410 | if (sf->output_method == output_initial) | |
2411 | return; | |
2412 | ||
f32d4091 KS |
2413 | internal_terminal |
2414 | = (!noninteractive) && term && !strcmp (term, "internal"); | |
2415 | ||
f32d4091 KS |
2416 | #ifndef HAVE_X_WINDOWS |
2417 | if (!internal_terminal || inhibit_window_system) | |
2418 | { | |
2d764c78 | 2419 | sf->output_method = output_termcap; |
f32d4091 KS |
2420 | return; |
2421 | } | |
2422 | ||
3e1944a3 | 2423 | tty = FRAME_TTY (sf); |
f12dae2f EZ |
2424 | current_kboard->Vwindow_system = Qpc; |
2425 | sf->output_method = output_msdos_raw; | |
2306a735 | 2426 | if (init_needed) |
3e1944a3 | 2427 | { |
2306a735 EZ |
2428 | if (!tty->termscript && getenv ("EMACSTEST")) |
2429 | tty->termscript = fopen (getenv ("EMACSTEST"), "wt"); | |
2430 | if (tty->termscript) | |
2431 | { | |
2432 | time_t now = time (NULL); | |
2433 | struct tm *tnow = localtime (&now); | |
2434 | char tbuf[100]; | |
3e1944a3 | 2435 | |
2306a735 EZ |
2436 | strftime (tbuf, sizeof (tbuf) - 1, "%a %b %e %Y %H:%M:%S %Z", tnow); |
2437 | fprintf (tty->termscript, "\nEmacs session started at %s\n", tbuf); | |
2438 | fprintf (tty->termscript, "=====================\n\n"); | |
2439 | } | |
3e1944a3 | 2440 | |
2306a735 EZ |
2441 | Vinitial_window_system = Qpc; |
2442 | Vwindow_system_version = make_number (23); /* RE Emacs version */ | |
2443 | tty->terminal->type = output_msdos_raw; | |
039274cf | 2444 | |
2306a735 EZ |
2445 | /* If Emacs was dumped on DOS/V machine, forget the stale VRAM |
2446 | address. */ | |
2447 | screen_old_address = 0; | |
039274cf | 2448 | |
2306a735 EZ |
2449 | /* Forget the stale screen colors as well. */ |
2450 | initial_screen_colors[0] = initial_screen_colors[1] = -1; | |
2d764c78 | 2451 | |
2306a735 EZ |
2452 | FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = 7; /* White */ |
2453 | FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = 0; /* Black */ | |
2454 | bright_bg (); | |
2455 | colors = getenv ("EMACSCOLORS"); | |
2456 | if (colors && strlen (colors) >= 2) | |
2457 | { | |
2458 | /* The colors use 4 bits each (we enable bright background). */ | |
2459 | if (isdigit (colors[0])) | |
2460 | colors[0] -= '0'; | |
2461 | else if (isxdigit (colors[0])) | |
2462 | colors[0] -= (isupper (colors[0]) ? 'A' : 'a') - 10; | |
2463 | if (colors[0] >= 0 && colors[0] < 16) | |
2464 | FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = colors[0]; | |
2465 | if (isdigit (colors[1])) | |
2466 | colors[1] -= '0'; | |
2467 | else if (isxdigit (colors[1])) | |
2468 | colors[1] -= (isupper (colors[1]) ? 'A' : 'a') - 10; | |
2469 | if (colors[1] >= 0 && colors[1] < 16) | |
2470 | FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = colors[1]; | |
2471 | } | |
2472 | the_only_display_info.mouse_face_mouse_frame = NULL; | |
2473 | the_only_display_info.mouse_face_deferred_gc = 0; | |
2474 | the_only_display_info.mouse_face_beg_row = | |
2475 | the_only_display_info.mouse_face_beg_col = -1; | |
2476 | the_only_display_info.mouse_face_end_row = | |
2477 | the_only_display_info.mouse_face_end_col = -1; | |
2478 | the_only_display_info.mouse_face_face_id = DEFAULT_FACE_ID; | |
2479 | the_only_display_info.mouse_face_window = Qnil; | |
2480 | the_only_display_info.mouse_face_mouse_x = | |
2481 | the_only_display_info.mouse_face_mouse_y = 0; | |
2482 | the_only_display_info.mouse_face_defer = 0; | |
2483 | the_only_display_info.mouse_face_hidden = 0; | |
2484 | ||
2485 | if (have_mouse) /* detected in dos_ttraw, which see */ | |
2486 | { | |
2487 | have_mouse = 1; /* enable mouse */ | |
2488 | mouse_visible = 0; | |
2489 | mouse_setup_buttons (mouse_button_count); | |
2490 | tty->terminal->mouse_position_hook = &mouse_get_pos; | |
2491 | mouse_init (); | |
2492 | } | |
f32d4091 | 2493 | |
2306a735 EZ |
2494 | if (tty->termscript && screen_size) |
2495 | fprintf (tty->termscript, "<SCREEN SAVED (dimensions=%dx%d)>\n", | |
2496 | screen_size_X, screen_size_Y); | |
f32d4091 | 2497 | |
f12dae2f | 2498 | init_frame_faces (sf); |
2306a735 EZ |
2499 | init_needed = 0; |
2500 | } | |
f32d4091 KS |
2501 | #endif |
2502 | } | |
2503 | ||
3e1944a3 EZ |
2504 | void |
2505 | initialize_msdos_display (struct terminal *term) | |
2506 | { | |
2507 | term->rif = 0; /* we don't support window-based display */ | |
2508 | term->cursor_to_hook = term->raw_cursor_to_hook = IT_cursor_to; | |
2509 | term->clear_to_end_hook = IT_clear_to_end; | |
2510 | term->clear_frame_hook = IT_clear_screen; | |
2511 | term->clear_end_of_line_hook = IT_clear_end_of_line; | |
2512 | term->ins_del_lines_hook = 0; | |
2513 | term->insert_glyphs_hook = IT_insert_glyphs; | |
2514 | term->write_glyphs_hook = IT_write_glyphs; | |
2515 | term->delete_glyphs_hook = IT_delete_glyphs; | |
2516 | term->ring_bell_hook = IT_ring_bell; | |
2517 | term->reset_terminal_modes_hook = IT_reset_terminal_modes; | |
2518 | term->set_terminal_modes_hook = IT_set_terminal_modes; | |
2519 | term->set_terminal_window_hook = IT_set_terminal_window; | |
2520 | term->update_begin_hook = IT_update_begin; | |
2521 | term->update_end_hook = IT_update_end; | |
2522 | term->frame_up_to_date_hook = IT_frame_up_to_date; | |
2523 | term->mouse_position_hook = 0; /* set later by dos_ttraw */ | |
2524 | term->frame_rehighlight_hook = 0; | |
2525 | term->frame_raise_lower_hook = 0; | |
2526 | term->set_vertical_scroll_bar_hook = 0; | |
2527 | term->condemn_scroll_bars_hook = 0; | |
2528 | term->redeem_scroll_bar_hook = 0; | |
2529 | term->judge_scroll_bars_hook = 0; | |
2530 | term->read_socket_hook = &tty_read_avail_input; /* from keyboard.c */ | |
2531 | } | |
2532 | ||
f32d4091 KS |
2533 | dos_get_saved_screen (screen, rows, cols) |
2534 | char **screen; | |
2535 | int *rows; | |
2536 | int *cols; | |
2537 | { | |
2538 | #ifndef HAVE_X_WINDOWS | |
2539 | *screen = startup_screen_buffer; | |
2540 | *cols = startup_screen_size_X; | |
2541 | *rows = startup_screen_size_Y; | |
039274cf | 2542 | return *screen != (char *)0; |
f32d4091 KS |
2543 | #else |
2544 | return 0; | |
56e19ec4 | 2545 | #endif |
f32d4091 | 2546 | } |
3bb1f22f RS |
2547 | |
2548 | #ifndef HAVE_X_WINDOWS | |
2549 | ||
2550 | /* We are not X, but we can emulate it well enough for our needs... */ | |
2551 | void | |
2552 | check_x (void) | |
2553 | { | |
2d764c78 EZ |
2554 | if (! FRAME_MSDOS_P (SELECTED_FRAME())) |
2555 | error ("Not running under a window system"); | |
3bb1f22f RS |
2556 | } |
2557 | ||
2558 | #endif | |
2559 | ||
5063b150 | 2560 | \f |
f32d4091 KS |
2561 | /* ----------------------- Keyboard control ---------------------- |
2562 | * | |
2563 | * Keymaps reflect the following keyboard layout: | |
2564 | * | |
2565 | * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS | |
2566 | * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41) | |
2567 | * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET | |
2568 | * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT | |
2569 | * SPACE | |
2570 | */ | |
2571 | ||
d1d5dc19 EZ |
2572 | #define Ignore 0x0000 |
2573 | #define Normal 0x0000 /* normal key - alt changes scan-code */ | |
2574 | #define FctKey 0x1000 /* func key if c == 0, else c */ | |
2575 | #define Special 0x2000 /* func key even if c != 0 */ | |
2576 | #define ModFct 0x3000 /* special if mod-keys, else 'c' */ | |
2577 | #define Map 0x4000 /* alt scan-code, map to unshift/shift key */ | |
2578 | #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */ | |
2579 | #define Grey 0x6000 /* Grey keypad key */ | |
2580 | ||
2581 | #define Alt 0x0100 /* alt scan-code */ | |
2582 | #define Ctrl 0x0200 /* ctrl scan-code */ | |
2583 | #define Shift 0x0400 /* shift scan-code */ | |
2584 | ||
db9cd97a | 2585 | static int extended_kbd; /* 101 (102) keyboard present. */ |
f32d4091 | 2586 | |
d1d5dc19 EZ |
2587 | struct kbd_translate { |
2588 | unsigned char sc; | |
2589 | unsigned char ch; | |
2590 | unsigned short code; | |
2591 | }; | |
2592 | ||
f32d4091 KS |
2593 | struct dos_keyboard_map |
2594 | { | |
2595 | char *unshifted; | |
2596 | char *shifted; | |
2597 | char *alt_gr; | |
d1d5dc19 | 2598 | struct kbd_translate *translate_table; |
f32d4091 KS |
2599 | }; |
2600 | ||
2601 | ||
2602 | static struct dos_keyboard_map us_keyboard = { | |
2603 | /* 0 1 2 3 4 5 */ | |
2604 | /* 01234567890123456789012345678901234567890 12345678901234 */ | |
2605 | "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ", | |
2606 | /* 0123456789012345678901234567890123456789 012345678901234 */ | |
2607 | "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ", | |
d1d5dc19 EZ |
2608 | 0, /* no Alt-Gr key */ |
2609 | 0 /* no translate table */ | |
f32d4091 KS |
2610 | }; |
2611 | ||
2612 | static struct dos_keyboard_map fr_keyboard = { | |
2613 | /* 0 1 2 3 4 5 */ | |
2614 | /* 012 3456789012345678901234567890123456789012345678901234 */ | |
2615 |