Commit | Line | Data |
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c6a6499f | 1 | /* MS-DOS specific C utilities. -*- coding: raw-text -*- |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, |
114f9c96 | 3 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
8cabe764 | 4 | Free Software Foundation, Inc. |
1b94449f RS |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
1b94449f | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
1b94449f RS |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
1b94449f | 20 | |
9da6e765 | 21 | /* Contributed by Morten Welinder */ |
f32d4091 | 22 | /* New display, keyboard, and mouse control by Kim F. Storm */ |
9da6e765 | 23 | |
1b94449f RS |
24 | /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */ |
25 | ||
48984716 | 26 | #include <config.h> |
1b94449f RS |
27 | |
28 | #ifdef MSDOS | |
d7306fe6 | 29 | #include <setjmp.h> |
1b94449f RS |
30 | #include "lisp.h" |
31 | #include <stdio.h> | |
32 | #include <stdlib.h> | |
06b1ea13 | 33 | #include <time.h> |
1b94449f RS |
34 | #include <sys/param.h> |
35 | #include <sys/time.h> | |
36 | #include <dos.h> | |
d21e67b5 | 37 | #include <errno.h> |
72af86bd | 38 | #include <string.h> /* for memset and string functions */ |
d21e67b5 | 39 | #include <sys/stat.h> /* for _fixpath */ |
a7cf9151 | 40 | #include <unistd.h> /* for chdir, dup, dup2, etc. */ |
bf794306 | 41 | #include <dir.h> /* for getdisk */ |
affa509c | 42 | #pragma pack(0) /* dir.h does a pack(4), which isn't GCC's default */ |
1bd7b2c7 | 43 | #include <fcntl.h> |
a7cf9151 | 44 | #include <io.h> /* for setmode */ |
fc171623 KH |
45 | #include <dpmi.h> /* for __dpmi_xxx stuff */ |
46 | #include <sys/farptr.h> /* for _farsetsel, _farnspokeb */ | |
d21e67b5 | 47 | #include <libc/dosio.h> /* for _USE_LFN */ |
a7cf9151 | 48 | #include <conio.h> /* for cputs */ |
1bd7b2c7 | 49 | |
1b94449f RS |
50 | #include "msdos.h" |
51 | #include "systime.h" | |
3e1944a3 | 52 | #include "frame.h" |
1b94449f | 53 | #include "termhooks.h" |
aa9ce936 | 54 | #include "termchar.h" |
87485d6f | 55 | #include "dispextern.h" |
c77f6f1b | 56 | #include "dosfns.h" |
87485d6f | 57 | #include "termopts.h" |
83be827a | 58 | #include "character.h" |
aa9ce936 EZ |
59 | #include "coding.h" |
60 | #include "disptab.h" | |
87485d6f | 61 | #include "window.h" |
fc171623 KH |
62 | #include "buffer.h" |
63 | #include "commands.h" | |
41ad069b | 64 | #include "blockinput.h" |
97dd288b | 65 | #include "keyboard.h" |
6b61353c | 66 | #include "intervals.h" |
1b94449f RS |
67 | #include <go32.h> |
68 | #include <pc.h> | |
69 | #include <ctype.h> | |
70 | /* #include <process.h> */ | |
71 | /* Damn that local process.h! Instead we can define P_WAIT ourselves. */ | |
72 | #define P_WAIT 1 | |
73 | ||
d21e67b5 RS |
74 | #ifndef _USE_LFN |
75 | #define _USE_LFN 0 | |
76 | #endif | |
77 | ||
b36701cc RS |
78 | #ifndef _dos_ds |
79 | #define _dos_ds _go32_info_block.selector_for_linear_memory | |
80 | #endif | |
81 | ||
8748735b | 82 | #include <signal.h> |
417a04bb | 83 | #include "syssignal.h" |
8748735b | 84 | |
1bd7b2c7 RS |
85 | #ifndef SYSTEM_MALLOC |
86 | ||
87 | #ifdef GNU_MALLOC | |
88 | ||
89 | /* If other `malloc' than ours is used, force our `sbrk' behave like | |
90 | Unix programs expect (resize memory blocks to keep them contiguous). | |
91 | If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory, | |
92 | because that's what `gmalloc' expects to get. */ | |
93 | #include <crt0.h> | |
94 | ||
95 | #ifdef REL_ALLOC | |
96 | int _crt0_startup_flags = _CRT0_FLAG_UNIX_SBRK; | |
97 | #else /* not REL_ALLOC */ | |
98 | int _crt0_startup_flags = (_CRT0_FLAG_UNIX_SBRK | _CRT0_FLAG_FILL_SBRK_MEMORY); | |
99 | #endif /* not REL_ALLOC */ | |
100 | #endif /* GNU_MALLOC */ | |
101 | ||
102 | #endif /* not SYSTEM_MALLOC */ | |
aee81730 RS |
103 | |
104 | static unsigned long | |
3a8ce822 | 105 | event_timestamp (void) |
aee81730 RS |
106 | { |
107 | struct time t; | |
108 | unsigned long s; | |
56e19ec4 | 109 | |
aee81730 RS |
110 | gettime (&t); |
111 | s = t.ti_min; | |
112 | s *= 60; | |
113 | s += t.ti_sec; | |
114 | s *= 1000; | |
115 | s += t.ti_hund * 10; | |
56e19ec4 | 116 | |
aee81730 RS |
117 | return s; |
118 | } | |
119 | ||
f32d4091 KS |
120 | \f |
121 | /* ------------------------ Mouse control --------------------------- | |
122 | * | |
123 | * Coordinates are in screen positions and zero based. | |
124 | * Mouse buttons are numbered from left to right and also zero based. | |
125 | */ | |
1b94449f | 126 | |
0c3cfc51 EZ |
127 | /* This used to be in termhooks.h, but mainstream Emacs code no longer |
128 | uses it, and it was removed... */ | |
129 | #define NUM_MOUSE_BUTTONS (5) | |
130 | ||
f32d4091 KS |
131 | int have_mouse; /* 0: no, 1: enabled, -1: disabled */ |
132 | static int mouse_visible; | |
1b94449f | 133 | |
f32d4091 KS |
134 | static int mouse_last_x; |
135 | static int mouse_last_y; | |
1b94449f | 136 | |
f32d4091 KS |
137 | static int mouse_button_translate[NUM_MOUSE_BUTTONS]; |
138 | static int mouse_button_count; | |
1b94449f | 139 | |
f32d4091 | 140 | void |
3a8ce822 | 141 | mouse_on (void) |
1b94449f | 142 | { |
1b94449f | 143 | union REGS regs; |
1b94449f | 144 | |
f32d4091 | 145 | if (have_mouse > 0 && !mouse_visible) |
1b94449f | 146 | { |
3e1944a3 EZ |
147 | struct tty_display_info *tty = CURTTY (); |
148 | ||
149 | if (tty->termscript) | |
150 | fprintf (tty->termscript, "<M_ON>"); | |
f32d4091 KS |
151 | regs.x.ax = 0x0001; |
152 | int86 (0x33, ®s, ®s); | |
153 | mouse_visible = 1; | |
1b94449f | 154 | } |
1b94449f RS |
155 | } |
156 | ||
f32d4091 | 157 | void |
3a8ce822 | 158 | mouse_off (void) |
1b94449f | 159 | { |
f32d4091 | 160 | union REGS regs; |
1b94449f | 161 | |
f32d4091 | 162 | if (have_mouse > 0 && mouse_visible) |
1b94449f | 163 | { |
3e1944a3 EZ |
164 | struct tty_display_info *tty = CURTTY (); |
165 | ||
166 | if (tty->termscript) | |
167 | fprintf (tty->termscript, "<M_OFF>"); | |
f32d4091 KS |
168 | regs.x.ax = 0x0002; |
169 | int86 (0x33, ®s, ®s); | |
170 | mouse_visible = 0; | |
1b94449f | 171 | } |
1b94449f RS |
172 | } |
173 | ||
8f190436 EZ |
174 | static void |
175 | mouse_setup_buttons (int n_buttons) | |
176 | { | |
177 | if (n_buttons == 3) | |
178 | { | |
179 | mouse_button_count = 3; | |
180 | mouse_button_translate[0] = 0; /* Left */ | |
181 | mouse_button_translate[1] = 2; /* Middle */ | |
182 | mouse_button_translate[2] = 1; /* Right */ | |
183 | } | |
184 | else /* two, what else? */ | |
185 | { | |
186 | mouse_button_count = 2; | |
187 | mouse_button_translate[0] = 0; | |
188 | mouse_button_translate[1] = 1; | |
189 | } | |
190 | } | |
191 | ||
192 | DEFUN ("msdos-set-mouse-buttons", Fmsdos_set_mouse_buttons, Smsdos_set_mouse_buttons, | |
193 | 1, 1, "NSet number of mouse buttons to: ", | |
70da46c3 PJ |
194 | doc: /* Set the number of mouse buttons to use by Emacs. |
195 | This is useful with mice that report the number of buttons inconsistently, | |
196 | e.g., if the number of buttons is reported as 3, but Emacs only sees 2 of | |
197 | them. This happens with wheeled mice on Windows 9X, for example. */) | |
198 | (nbuttons) | |
8f190436 EZ |
199 | Lisp_Object nbuttons; |
200 | { | |
e7522695 EZ |
201 | int n; |
202 | ||
b7826503 | 203 | CHECK_NUMBER (nbuttons); |
e7522695 EZ |
204 | n = XINT (nbuttons); |
205 | if (n < 2 || n > 3) | |
ebe061ca KS |
206 | xsignal2 (Qargs_out_of_range, |
207 | build_string ("only 2 or 3 mouse buttons are supported"), | |
208 | nbuttons); | |
e7522695 | 209 | mouse_setup_buttons (n); |
8f190436 EZ |
210 | return Qnil; |
211 | } | |
212 | ||
211c7152 EZ |
213 | static void |
214 | mouse_get_xy (int *x, int *y) | |
215 | { | |
216 | union REGS regs; | |
217 | ||
218 | regs.x.ax = 0x0003; | |
219 | int86 (0x33, ®s, ®s); | |
220 | *x = regs.x.cx / 8; | |
221 | *y = regs.x.dx / 8; | |
222 | } | |
223 | ||
f32d4091 | 224 | void |
3a8ce822 | 225 | mouse_moveto (int x, int y) |
1b94449f | 226 | { |
f32d4091 | 227 | union REGS regs; |
3e1944a3 | 228 | struct tty_display_info *tty = CURTTY (); |
1b94449f | 229 | |
3e1944a3 EZ |
230 | if (tty->termscript) |
231 | fprintf (tty->termscript, "<M_XY=%dx%d>", x, y); | |
f32d4091 KS |
232 | regs.x.ax = 0x0004; |
233 | mouse_last_x = regs.x.cx = x * 8; | |
234 | mouse_last_y = regs.x.dx = y * 8; | |
235 | int86 (0x33, ®s, ®s); | |
1b94449f RS |
236 | } |
237 | ||
f32d4091 | 238 | static int |
3a8ce822 | 239 | mouse_pressed (int b, int *xp, int *yp) |
1b94449f | 240 | { |
f32d4091 | 241 | union REGS regs; |
1b94449f | 242 | |
f32d4091 KS |
243 | if (b >= mouse_button_count) |
244 | return 0; | |
245 | regs.x.ax = 0x0005; | |
246 | regs.x.bx = mouse_button_translate[b]; | |
247 | int86 (0x33, ®s, ®s); | |
248 | if (regs.x.bx) | |
249 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
250 | return (regs.x.bx != 0); | |
1b94449f RS |
251 | } |
252 | ||
f32d4091 | 253 | static int |
3a8ce822 | 254 | mouse_released (int b, int *xp, int *yp) |
1b94449f RS |
255 | { |
256 | union REGS regs; | |
257 | ||
f32d4091 KS |
258 | if (b >= mouse_button_count) |
259 | return 0; | |
260 | regs.x.ax = 0x0006; | |
261 | regs.x.bx = mouse_button_translate[b]; | |
262 | int86 (0x33, ®s, ®s); | |
263 | if (regs.x.bx) | |
264 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
265 | return (regs.x.bx != 0); | |
1b94449f RS |
266 | } |
267 | ||
0c7bc1aa | 268 | static int |
3a8ce822 | 269 | mouse_button_depressed (int b, int *xp, int *yp) |
0c7bc1aa EZ |
270 | { |
271 | union REGS regs; | |
272 | ||
273 | if (b >= mouse_button_count) | |
274 | return 0; | |
275 | regs.x.ax = 0x0003; | |
276 | int86 (0x33, ®s, ®s); | |
277 | if ((regs.x.bx & (1 << mouse_button_translate[b])) != 0) | |
278 | { | |
279 | *xp = regs.x.cx / 8; | |
280 | *yp = regs.x.dx / 8; | |
281 | return 1; | |
282 | } | |
283 | return 0; | |
284 | } | |
285 | ||
f32d4091 | 286 | void |
3a8ce822 EZ |
287 | mouse_get_pos (FRAME_PTR *f, int insist, Lisp_Object *bar_window, |
288 | enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y, | |
289 | unsigned long *time) | |
f32d4091 KS |
290 | { |
291 | int ix, iy; | |
211c7152 EZ |
292 | Lisp_Object frame, tail; |
293 | ||
294 | /* Clear the mouse-moved flag for every frame on this display. */ | |
295 | FOR_EACH_FRAME (tail, frame) | |
296 | XFRAME (frame)->mouse_moved = 0; | |
f32d4091 | 297 | |
2d764c78 | 298 | *f = SELECTED_FRAME(); |
f32d4091 KS |
299 | *bar_window = Qnil; |
300 | mouse_get_xy (&ix, &iy); | |
f32d4091 | 301 | *time = event_timestamp (); |
211c7152 EZ |
302 | *x = make_number (mouse_last_x = ix); |
303 | *y = make_number (mouse_last_y = iy); | |
f32d4091 | 304 | } |
1b94449f | 305 | |
f32d4091 | 306 | static void |
3a8ce822 | 307 | mouse_check_moved (void) |
1b94449f | 308 | { |
aee81730 | 309 | int x, y; |
1b94449f | 310 | |
f32d4091 | 311 | mouse_get_xy (&x, &y); |
2d764c78 | 312 | SELECTED_FRAME()->mouse_moved |= (x != mouse_last_x || y != mouse_last_y); |
f32d4091 KS |
313 | mouse_last_x = x; |
314 | mouse_last_y = y; | |
315 | } | |
1b94449f | 316 | |
97dd288b EZ |
317 | /* Force the mouse driver to ``forget'' about any button clicks until |
318 | now. */ | |
319 | static void | |
320 | mouse_clear_clicks (void) | |
321 | { | |
322 | int b; | |
323 | ||
324 | for (b = 0; b < mouse_button_count; b++) | |
325 | { | |
326 | int dummy_x, dummy_y; | |
327 | ||
328 | (void) mouse_pressed (b, &dummy_x, &dummy_y); | |
329 | (void) mouse_released (b, &dummy_x, &dummy_y); | |
330 | } | |
331 | } | |
332 | ||
f32d4091 | 333 | void |
3a8ce822 | 334 | mouse_init (void) |
f32d4091 KS |
335 | { |
336 | union REGS regs; | |
3e1944a3 | 337 | struct tty_display_info *tty = CURTTY (); |
647c32eb | 338 | |
3e1944a3 EZ |
339 | if (tty->termscript) |
340 | fprintf (tty->termscript, "<M_INIT>"); | |
1b94449f | 341 | |
f32d4091 KS |
342 | regs.x.ax = 0x0021; |
343 | int86 (0x33, ®s, ®s); | |
091d0bdf | 344 | |
0c7bc1aa EZ |
345 | /* Reset the mouse last press/release info. It seems that Windows |
346 | doesn't do that automatically when function 21h is called, which | |
347 | causes Emacs to ``remember'' the click that switched focus to the | |
348 | window just before Emacs was started from that window. */ | |
97dd288b | 349 | mouse_clear_clicks (); |
0c7bc1aa | 350 | |
f32d4091 KS |
351 | regs.x.ax = 0x0007; |
352 | regs.x.cx = 0; | |
353 | regs.x.dx = 8 * (ScreenCols () - 1); | |
354 | int86 (0x33, ®s, ®s); | |
1b94449f | 355 | |
f32d4091 KS |
356 | regs.x.ax = 0x0008; |
357 | regs.x.cx = 0; | |
358 | regs.x.dx = 8 * (ScreenRows () - 1); | |
359 | int86 (0x33, ®s, ®s); | |
1b94449f | 360 | |
f32d4091 KS |
361 | mouse_moveto (0, 0); |
362 | mouse_visible = 0; | |
363 | } | |
3eb1dbb6 | 364 | \f |
f32d4091 KS |
365 | /* ------------------------- Screen control ---------------------- |
366 | * | |
367 | */ | |
aee81730 | 368 | |
f32d4091 | 369 | static int internal_terminal = 0; |
aee81730 | 370 | |
f32d4091 KS |
371 | #ifndef HAVE_X_WINDOWS |
372 | extern unsigned char ScreenAttrib; | |
373 | static int screen_face; | |
aee81730 | 374 | |
f32d4091 KS |
375 | static int screen_size_X; |
376 | static int screen_size_Y; | |
377 | static int screen_size; | |
1b94449f | 378 | |
f32d4091 KS |
379 | static int current_pos_X; |
380 | static int current_pos_Y; | |
381 | static int new_pos_X; | |
382 | static int new_pos_Y; | |
1b94449f | 383 | |
f32d4091 KS |
384 | static void *startup_screen_buffer; |
385 | static int startup_screen_size_X; | |
386 | static int startup_screen_size_Y; | |
387 | static int startup_pos_X; | |
388 | static int startup_pos_Y; | |
c9adab25 | 389 | static unsigned char startup_screen_attrib; |
1b94449f | 390 | |
06b1ea13 EZ |
391 | static clock_t startup_time; |
392 | ||
f32d4091 | 393 | static int term_setup_done; |
1b94449f | 394 | |
8ba01a32 EZ |
395 | static unsigned short outside_cursor; |
396 | ||
f32d4091 | 397 | /* Similar to the_only_frame. */ |
3e1944a3 | 398 | struct tty_display_info the_only_display_info; |
1b94449f | 399 | |
039274cf EZ |
400 | /* Support for DOS/V (allows Japanese characters to be displayed on |
401 | standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */ | |
402 | ||
403 | /* Holds the address of the text-mode screen buffer. */ | |
404 | static unsigned long screen_old_address = 0; | |
405 | /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */ | |
406 | static unsigned short screen_virtual_segment = 0; | |
407 | static unsigned short screen_virtual_offset = 0; | |
68026917 AI |
408 | /* A flag to control how to display unibyte 8-bit characters. */ |
409 | extern int unibyte_display_via_language_environment; | |
039274cf | 410 | |
6b61353c KH |
411 | extern Lisp_Object Qcursor_type; |
412 | extern Lisp_Object Qbar, Qhbar; | |
8ba01a32 | 413 | |
9ccf54e9 | 414 | /* The screen colors of the current frame, which serve as the default |
deece6f5 EZ |
415 | colors for newly-created frames. */ |
416 | static int initial_screen_colors[2]; | |
417 | ||
039274cf EZ |
418 | /* Update the screen from a part of relocated DOS/V screen buffer which |
419 | begins at OFFSET and includes COUNT characters. */ | |
420 | static void | |
421 | dosv_refresh_virtual_screen (int offset, int count) | |
422 | { | |
423 | __dpmi_regs regs; | |
424 | ||
9ab8560d | 425 | if (offset < 0 || count < 0) /* paranoia; invalid values crash DOS/V */ |
40437cf5 EZ |
426 | return; |
427 | ||
039274cf EZ |
428 | regs.h.ah = 0xff; /* update relocated screen */ |
429 | regs.x.es = screen_virtual_segment; | |
430 | regs.x.di = screen_virtual_offset + offset; | |
431 | regs.x.cx = count; | |
432 | __dpmi_int (0x10, ®s); | |
433 | } | |
039274cf | 434 | |
d1d5dc19 | 435 | static void |
3a8ce822 | 436 | dos_direct_output (int y, int x, char *buf, int len) |
1b94449f | 437 | { |
40437cf5 EZ |
438 | int t0 = 2 * (x + y * screen_size_X); |
439 | int t = t0 + (int) ScreenPrimary; | |
039274cf | 440 | int l0 = len; |
fc171623 | 441 | |
fc171623 KH |
442 | /* This is faster. */ |
443 | for (_farsetsel (_dos_ds); --len >= 0; t += 2, buf++) | |
444 | _farnspokeb (t, *buf); | |
039274cf EZ |
445 | |
446 | if (screen_virtual_segment) | |
447 | dosv_refresh_virtual_screen (t0, l0); | |
f32d4091 KS |
448 | } |
449 | #endif | |
450 | ||
451 | #ifndef HAVE_X_WINDOWS | |
452 | ||
b36701cc RS |
453 | static int blink_bit = -1; /* the state of the blink bit at startup */ |
454 | ||
76ac1508 RS |
455 | /* Enable bright background colors. */ |
456 | static void | |
457 | bright_bg (void) | |
458 | { | |
459 | union REGS regs; | |
460 | ||
b36701cc RS |
461 | /* Remember the original state of the blink/bright-background bit. |
462 | It is stored at 0040:0065h in the BIOS data area. */ | |
463 | if (blink_bit == -1) | |
464 | blink_bit = (_farpeekb (_dos_ds, 0x465) & 0x20) == 0x20; | |
465 | ||
76ac1508 RS |
466 | regs.h.bl = 0; |
467 | regs.x.ax = 0x1003; | |
468 | int86 (0x10, ®s, ®s); | |
469 | } | |
470 | ||
b36701cc RS |
471 | /* Disable bright background colors (and enable blinking) if we found |
472 | the video system in that state at startup. */ | |
473 | static void | |
474 | maybe_enable_blinking (void) | |
475 | { | |
476 | if (blink_bit == 1) | |
477 | { | |
478 | union REGS regs; | |
479 | ||
480 | regs.h.bl = 1; | |
481 | regs.x.ax = 0x1003; | |
482 | int86 (0x10, ®s, ®s); | |
483 | } | |
484 | } | |
485 | ||
8ba01a32 EZ |
486 | /* Return non-zero if the system has a VGA adapter. */ |
487 | static int | |
488 | vga_installed (void) | |
489 | { | |
490 | union REGS regs; | |
491 | ||
492 | regs.x.ax = 0x1a00; | |
493 | int86 (0x10, ®s, ®s); | |
494 | if (regs.h.al == 0x1a && regs.h.bl > 5 && regs.h.bl < 13) | |
495 | return 1; | |
496 | return 0; | |
497 | } | |
498 | ||
4a96d4d2 KH |
499 | /* Set the screen dimensions so that it can show no less than |
500 | ROWS x COLS frame. */ | |
48ffe371 | 501 | |
4a96d4d2 | 502 | void |
3a8ce822 | 503 | dos_set_window_size (int *rows, int *cols) |
4a96d4d2 KH |
504 | { |
505 | char video_name[30]; | |
4a96d4d2 | 506 | union REGS regs; |
56e19ec4 EZ |
507 | Lisp_Object video_mode; |
508 | int video_mode_value, have_vga = 0; | |
4a96d4d2 KH |
509 | int current_rows = ScreenRows (), current_cols = ScreenCols (); |
510 | ||
511 | if (*rows == current_rows && *cols == current_cols) | |
512 | return; | |
513 | ||
4a96d4d2 | 514 | mouse_off (); |
8ba01a32 | 515 | have_vga = vga_installed (); |
4a96d4d2 | 516 | |
48ffe371 | 517 | /* If the user specified a special video mode for these dimensions, |
4a96d4d2 KH |
518 | use that mode. */ |
519 | sprintf (video_name, "screen-dimensions-%dx%d", *rows, *cols); | |
d16bdfc3 | 520 | video_mode = Fsymbol_value (Fintern_soft (build_string (video_name), Qnil)); |
4a96d4d2 KH |
521 | |
522 | if (INTEGERP (video_mode) | |
523 | && (video_mode_value = XINT (video_mode)) > 0) | |
524 | { | |
525 | regs.x.ax = video_mode_value; | |
526 | int86 (0x10, ®s, ®s); | |
48ffe371 RS |
527 | |
528 | if (have_mouse) | |
529 | { | |
530 | /* Must hardware-reset the mouse, or else it won't update | |
531 | its notion of screen dimensions for some non-standard | |
532 | video modes. This is *painfully* slow... */ | |
533 | regs.x.ax = 0; | |
534 | int86 (0x33, ®s, ®s); | |
535 | } | |
4a96d4d2 KH |
536 | } |
537 | ||
538 | /* Find one of the dimensions supported by standard EGA/VGA | |
539 | which gives us at least the required dimensions. */ | |
4a96d4d2 KH |
540 | else |
541 | { | |
542 | static struct { | |
56e19ec4 | 543 | int rows, need_vga; |
4a96d4d2 KH |
544 | } std_dimension[] = { |
545 | {25, 0}, | |
546 | {28, 1}, | |
547 | {35, 0}, | |
548 | {40, 1}, | |
549 | {43, 0}, | |
550 | {50, 1} | |
551 | }; | |
552 | int i = 0; | |
553 | ||
554 | while (i < sizeof (std_dimension) / sizeof (std_dimension[0])) | |
555 | { | |
556 | if (std_dimension[i].need_vga <= have_vga | |
557 | && std_dimension[i].rows >= *rows) | |
558 | { | |
559 | if (std_dimension[i].rows != current_rows | |
560 | || *cols != current_cols) | |
48ffe371 | 561 | _set_screen_lines (std_dimension[i].rows); |
4a96d4d2 KH |
562 | break; |
563 | } | |
48ffe371 | 564 | i++; |
4a96d4d2 KH |
565 | } |
566 | } | |
567 | ||
4a96d4d2 KH |
568 | |
569 | if (have_mouse) | |
570 | { | |
4a96d4d2 KH |
571 | mouse_init (); |
572 | mouse_on (); | |
573 | } | |
574 | ||
575 | /* Tell the caller what dimensions have been REALLY set. */ | |
576 | *rows = ScreenRows (); | |
577 | *cols = ScreenCols (); | |
76ac1508 | 578 | |
bed43f1d EZ |
579 | /* Update Emacs' notion of screen dimensions. */ |
580 | screen_size_X = *cols; | |
581 | screen_size_Y = *rows; | |
582 | screen_size = *cols * *rows; | |
583 | ||
41ad069b EZ |
584 | /* If the dimensions changed, the mouse highlight info is invalid. */ |
585 | if (current_rows != *rows || current_cols != *cols) | |
586 | { | |
587 | struct frame *f = SELECTED_FRAME(); | |
3e1944a3 | 588 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
41ad069b EZ |
589 | Lisp_Object window = dpyinfo->mouse_face_window; |
590 | ||
591 | if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f) | |
592 | { | |
593 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
594 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
595 | dpyinfo->mouse_face_window = Qnil; | |
596 | } | |
597 | } | |
41ad069b | 598 | |
76ac1508 RS |
599 | /* Enable bright background colors. */ |
600 | bright_bg (); | |
039274cf EZ |
601 | |
602 | /* FIXME: I'm not sure the above will run at all on DOS/V. But let's | |
603 | be defensive anyway. */ | |
604 | if (screen_virtual_segment) | |
605 | dosv_refresh_virtual_screen (0, *cols * *rows); | |
4a96d4d2 KH |
606 | } |
607 | ||
48ffe371 RS |
608 | /* If we write a character in the position where the mouse is, |
609 | the mouse cursor may need to be refreshed. */ | |
09e2ac30 RS |
610 | |
611 | static void | |
3a8ce822 | 612 | mouse_off_maybe (void) |
09e2ac30 | 613 | { |
f32d4091 | 614 | int x, y; |
56e19ec4 | 615 | |
f32d4091 KS |
616 | if (!mouse_visible) |
617 | return; | |
56e19ec4 | 618 | |
f32d4091 KS |
619 | mouse_get_xy (&x, &y); |
620 | if (y != new_pos_Y || x < new_pos_X) | |
621 | return; | |
56e19ec4 | 622 | |
f32d4091 KS |
623 | mouse_off (); |
624 | } | |
625 | ||
8ba01a32 EZ |
626 | #define DEFAULT_CURSOR_START (-1) |
627 | #define DEFAULT_CURSOR_WIDTH (-1) | |
628 | #define BOX_CURSOR_WIDTH (-32) | |
629 | ||
630 | /* Set cursor to begin at scan line START_LINE in the character cell | |
631 | and extend for WIDTH scan lines. Scan lines are counted from top | |
632 | of the character cell, starting from zero. */ | |
633 | static void | |
634 | msdos_set_cursor_shape (struct frame *f, int start_line, int width) | |
635 | { | |
8ba01a32 EZ |
636 | unsigned desired_cursor; |
637 | __dpmi_regs regs; | |
638 | int max_line, top_line, bot_line; | |
3e1944a3 | 639 | struct tty_display_info *tty = FRAME_TTY (f); |
8ba01a32 EZ |
640 | |
641 | /* Avoid the costly BIOS call if F isn't the currently selected | |
642 | frame. Allow for NULL as unconditionally meaning the selected | |
643 | frame. */ | |
644 | if (f && f != SELECTED_FRAME()) | |
645 | return; | |
646 | ||
3e1944a3 EZ |
647 | if (tty->termscript) |
648 | fprintf (tty->termscript, "\nCURSOR SHAPE=(%d,%d)", start_line, width); | |
b106731c | 649 | |
8ba01a32 EZ |
650 | /* The character cell size in scan lines is stored at 40:85 in the |
651 | BIOS data area. */ | |
652 | max_line = _farpeekw (_dos_ds, 0x485) - 1; | |
653 | switch (max_line) | |
654 | { | |
655 | default: /* this relies on CGA cursor emulation being ON! */ | |
656 | case 7: | |
657 | bot_line = 7; | |
658 | break; | |
659 | case 9: | |
660 | bot_line = 9; | |
661 | break; | |
662 | case 13: | |
663 | bot_line = 12; | |
664 | break; | |
665 | case 15: | |
666 | bot_line = 14; | |
667 | break; | |
668 | } | |
669 | ||
670 | if (width < 0) | |
671 | { | |
672 | if (width == BOX_CURSOR_WIDTH) | |
673 | { | |
674 | top_line = 0; | |
675 | bot_line = max_line; | |
676 | } | |
677 | else if (start_line != DEFAULT_CURSOR_START) | |
678 | { | |
679 | top_line = start_line; | |
680 | bot_line = top_line - width - 1; | |
681 | } | |
682 | else if (width != DEFAULT_CURSOR_WIDTH) | |
683 | { | |
684 | top_line = 0; | |
685 | bot_line = -1 - width; | |
686 | } | |
687 | else | |
688 | top_line = bot_line + 1; | |
689 | } | |
690 | else if (width == 0) | |
691 | { | |
692 | /* [31, 0] seems to DTRT for all screen sizes. */ | |
693 | top_line = 31; | |
694 | bot_line = 0; | |
695 | } | |
696 | else /* WIDTH is positive */ | |
697 | { | |
698 | if (start_line != DEFAULT_CURSOR_START) | |
699 | bot_line = start_line; | |
700 | top_line = bot_line - (width - 1); | |
701 | } | |
702 | ||
703 | /* If the current cursor shape is already what they want, we are | |
704 | history here. */ | |
705 | desired_cursor = ((top_line & 0x1f) << 8) | (bot_line & 0x1f); | |
706 | if (desired_cursor == _farpeekw (_dos_ds, 0x460)) | |
707 | return; | |
708 | ||
709 | regs.h.ah = 1; | |
710 | regs.x.cx = desired_cursor; | |
711 | __dpmi_int (0x10, ®s); | |
8ba01a32 EZ |
712 | } |
713 | ||
714 | static void | |
715 | IT_set_cursor_type (struct frame *f, Lisp_Object cursor_type) | |
716 | { | |
a0738471 | 717 | if (EQ (cursor_type, Qbar) || EQ (cursor_type, Qhbar)) |
8ba01a32 EZ |
718 | { |
719 | /* Just BAR means the normal EGA/VGA cursor. */ | |
720 | msdos_set_cursor_shape (f, DEFAULT_CURSOR_START, DEFAULT_CURSOR_WIDTH); | |
721 | } | |
a0738471 EZ |
722 | else if (CONSP (cursor_type) |
723 | && (EQ (XCAR (cursor_type), Qbar) | |
724 | || EQ (XCAR (cursor_type), Qhbar))) | |
8ba01a32 EZ |
725 | { |
726 | Lisp_Object bar_parms = XCDR (cursor_type); | |
727 | int width; | |
728 | ||
729 | if (INTEGERP (bar_parms)) | |
730 | { | |
731 | /* Feature: negative WIDTH means cursor at the top | |
732 | of the character cell, zero means invisible cursor. */ | |
733 | width = XINT (bar_parms); | |
734 | msdos_set_cursor_shape (f, width >= 0 ? DEFAULT_CURSOR_START : 0, | |
735 | width); | |
736 | } | |
737 | else if (CONSP (bar_parms) | |
738 | && INTEGERP (XCAR (bar_parms)) | |
739 | && INTEGERP (XCDR (bar_parms))) | |
740 | { | |
741 | int start_line = XINT (XCDR (bar_parms)); | |
742 | ||
743 | width = XINT (XCAR (bar_parms)); | |
744 | msdos_set_cursor_shape (f, start_line, width); | |
745 | } | |
746 | } | |
747 | else | |
b106731c EZ |
748 | { |
749 | /* Treat anything unknown as "box cursor". This includes nil, so | |
750 | that a frame which doesn't specify a cursor type gets a box, | |
751 | which is the default in Emacs. */ | |
752 | msdos_set_cursor_shape (f, 0, BOX_CURSOR_WIDTH); | |
753 | } | |
8ba01a32 EZ |
754 | } |
755 | ||
71f65669 | 756 | static void |
3e1944a3 | 757 | IT_ring_bell (struct frame *f) |
f32d4091 KS |
758 | { |
759 | if (visible_bell) | |
aee81730 | 760 | { |
f32d4091 KS |
761 | mouse_off (); |
762 | ScreenVisualBell (); | |
aee81730 | 763 | } |
f32d4091 | 764 | else |
3635be47 RS |
765 | { |
766 | union REGS inregs, outregs; | |
767 | inregs.h.ah = 2; | |
768 | inregs.h.dl = 7; | |
769 | intdos (&inregs, &outregs); | |
770 | } | |
09e2ac30 RS |
771 | } |
772 | ||
c77f6f1b EZ |
773 | /* Given a face id FACE, extract the face parameters to be used for |
774 | display until the face changes. The face parameters (actually, its | |
775 | color) are used to construct the video attribute byte for each | |
776 | glyph during the construction of the buffer that is then blitted to | |
777 | the video RAM. */ | |
f32d4091 KS |
778 | static void |
779 | IT_set_face (int face) | |
780 | { | |
2d764c78 | 781 | struct frame *sf = SELECTED_FRAME(); |
546701f5 EZ |
782 | struct face *fp = FACE_FROM_ID (sf, face); |
783 | struct face *dfp = FACE_FROM_ID (sf, DEFAULT_FACE_ID); | |
784 | unsigned long fg, bg, dflt_fg, dflt_bg; | |
3e1944a3 | 785 | struct tty_display_info *tty = FRAME_TTY (sf); |
f32d4091 | 786 | |
c77f6f1b | 787 | if (!fp) |
e30aee93 | 788 | { |
546701f5 | 789 | fp = dfp; |
e30aee93 EZ |
790 | /* The default face for the frame should always be realized and |
791 | cached. */ | |
792 | if (!fp) | |
793 | abort (); | |
794 | } | |
f32d4091 | 795 | screen_face = face; |
c77f6f1b EZ |
796 | fg = fp->foreground; |
797 | bg = fp->background; | |
546701f5 EZ |
798 | dflt_fg = dfp->foreground; |
799 | dflt_bg = dfp->background; | |
c77f6f1b | 800 | |
abcce93a MB |
801 | /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* colors |
802 | mean use the colors of the default face. Note that we assume all | |
803 | 16 colors to be available for the background, since Emacs switches | |
804 | on this mode (and loses the blinking attribute) at startup. */ | |
f9d2fdc4 | 805 | if (fg == FACE_TTY_DEFAULT_COLOR || fg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 | 806 | fg = FRAME_FOREGROUND_PIXEL (sf); |
f9d2fdc4 | 807 | else if (fg == FACE_TTY_DEFAULT_BG_COLOR) |
3b620731 EZ |
808 | fg = FRAME_BACKGROUND_PIXEL (sf); |
809 | if (bg == FACE_TTY_DEFAULT_COLOR || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
810 | bg = FRAME_BACKGROUND_PIXEL (sf); | |
f9d2fdc4 | 811 | else if (bg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 EZ |
812 | bg = FRAME_FOREGROUND_PIXEL (sf); |
813 | ||
814 | /* Make sure highlighted lines really stand out, come what may. */ | |
abcce93a | 815 | if (fp->tty_reverse_p && (fg == dflt_fg && bg == dflt_bg)) |
3b620731 EZ |
816 | { |
817 | unsigned long tem = fg; | |
818 | ||
819 | fg = bg; | |
820 | bg = tem; | |
821 | } | |
76648534 EZ |
822 | /* If the user requested inverse video, obey. */ |
823 | if (inverse_video) | |
824 | { | |
825 | unsigned long tem2 = fg; | |
826 | ||
827 | fg = bg; | |
828 | bg = tem2; | |
829 | } | |
3e1944a3 EZ |
830 | if (tty->termscript) |
831 | fprintf (tty->termscript, "<FACE %d: %d/%d[FG:%d/BG:%d]>", face, | |
abcce93a | 832 | fp->foreground, fp->background, fg, bg); |
c77f6f1b EZ |
833 | if (fg >= 0 && fg < 16) |
834 | { | |
835 | ScreenAttrib &= 0xf0; | |
836 | ScreenAttrib |= fg; | |
837 | } | |
838 | if (bg >= 0 && bg < 16) | |
839 | { | |
840 | ScreenAttrib &= 0x0f; | |
841 | ScreenAttrib |= ((bg & 0x0f) << 4); | |
842 | } | |
f32d4091 KS |
843 | } |
844 | ||
aff01dd9 EZ |
845 | /* According to RBIL (INTERRUP.A, V-1000), 160 is the maximum possible |
846 | width of a DOS display in any known text mode. We multiply by 2 to | |
847 | accomodate the screen attribute byte. */ | |
848 | #define MAX_SCREEN_BUF 160*2 | |
849 | ||
aa9ce936 | 850 | Lisp_Object Vdos_unsupported_char_glyph; |
3e1944a3 EZ |
851 | extern unsigned char *encode_terminal_code (struct glyph *, int, |
852 | struct coding_system *); | |
71f65669 | 853 | static void |
3e1944a3 | 854 | IT_write_glyphs (struct frame *f, struct glyph *str, int str_len) |
f32d4091 | 855 | { |
aff01dd9 | 856 | unsigned char screen_buf[MAX_SCREEN_BUF], *screen_bp, *bp; |
039274cf | 857 | int offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 | 858 | register int sl = str_len; |
3e1944a3 | 859 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 | 860 | struct frame *sf; |
3e1944a3 | 861 | unsigned char *conversion_buffer; |
87485d6f | 862 | |
52d38ab2 EZ |
863 | /* Do we need to consider conversion of unibyte characters to |
864 | multibyte? */ | |
865 | int convert_unibyte_characters | |
e16bf494 AI |
866 | = (NILP (current_buffer->enable_multibyte_characters) |
867 | && unibyte_display_via_language_environment); | |
52d38ab2 | 868 | |
3e1944a3 EZ |
869 | /* If terminal_coding does any conversion, use it, otherwise use |
870 | safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here | |
871 | because it always returns 1 if terminal_coding.src_multibyte is 1. */ | |
872 | struct coding_system *coding = FRAME_TERMINAL_CODING (f); | |
873 | ||
874 | if (!(coding->common_flags & CODING_REQUIRE_ENCODING_MASK)) | |
875 | coding = &safe_terminal_coding; | |
648648a9 | 876 | |
3b620731 | 877 | if (str_len <= 0) return; |
56e19ec4 | 878 | |
2d764c78 | 879 | sf = SELECTED_FRAME(); |
e30aee93 EZ |
880 | |
881 | /* Since faces get cached and uncached behind our back, we can't | |
882 | rely on their indices in the cache being consistent across | |
883 | invocations. So always reset the screen face to the default | |
884 | face of the frame, before writing glyphs, and let the glyphs | |
885 | set the right face if it's different from the default. */ | |
886 | IT_set_face (DEFAULT_FACE_ID); | |
56e19ec4 | 887 | |
aa9ce936 EZ |
888 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
889 | the tail. */ | |
3e1944a3 | 890 | coding->mode &= ~CODING_MODE_LAST_BLOCK; |
aff01dd9 | 891 | screen_bp = &screen_buf[0]; |
3e1944a3 | 892 | while (sl > 0) |
aa9ce936 | 893 | { |
3e1944a3 | 894 | int cf; |
aff01dd9 | 895 | int n; |
aa9ce936 | 896 | |
aff01dd9 EZ |
897 | /* If the face of this glyph is different from the current |
898 | screen face, update the screen attribute byte. */ | |
899 | cf = str->face_id; | |
900 | if (cf != screen_face) | |
901 | IT_set_face (cf); /* handles invalid faces gracefully */ | |
902 | ||
903 | /* Identify a run of glyphs with the same face. */ | |
904 | for (n = 1; n < sl; ++n) | |
905 | if (str[n].face_id != cf) | |
906 | break; | |
907 | ||
908 | if (n >= sl) | |
909 | /* This is the last glyph. */ | |
910 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
911 | ||
912 | conversion_buffer = encode_terminal_code (str, n, coding); | |
913 | if (coding->produced > 0) | |
aa9ce936 | 914 | { |
aff01dd9 EZ |
915 | /* Copy the encoded bytes to the screen buffer. */ |
916 | for (bp = conversion_buffer; coding->produced--; bp++) | |
aa9ce936 | 917 | { |
aff01dd9 EZ |
918 | /* Paranoia: discard bytes that would overrun the end of |
919 | the screen buffer. */ | |
920 | if (screen_bp - screen_buf <= MAX_SCREEN_BUF - 2) | |
aa9ce936 | 921 | { |
aff01dd9 EZ |
922 | *screen_bp++ = (unsigned char)*bp; |
923 | *screen_bp++ = ScreenAttrib; | |
aa9ce936 | 924 | } |
aff01dd9 EZ |
925 | if (tty->termscript) |
926 | fputc (*bp, tty->termscript); | |
aa9ce936 EZ |
927 | } |
928 | } | |
aff01dd9 EZ |
929 | /* Update STR and its remaining length. */ |
930 | str += n; | |
931 | sl -= n; | |
aee81730 RS |
932 | } |
933 | ||
aff01dd9 | 934 | /* Dump whatever we have in the screen buffer. */ |
f32d4091 | 935 | mouse_off_maybe (); |
aa9ce936 | 936 | dosmemput (screen_buf, screen_bp - screen_buf, (int)ScreenPrimary + offset); |
039274cf | 937 | if (screen_virtual_segment) |
aa9ce936 EZ |
938 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); |
939 | new_pos_X += (screen_bp - screen_buf) / 2; | |
f32d4091 | 940 | } |
aee81730 | 941 | |
41ad069b EZ |
942 | /************************************************************************ |
943 | Mouse Highlight (and friends..) | |
944 | ************************************************************************/ | |
945 | ||
ee8ceff8 | 946 | /* Last window where we saw the mouse. Used by mouse-autoselect-window. */ |
9005a471 EZ |
947 | static Lisp_Object last_mouse_window; |
948 | ||
41ad069b EZ |
949 | static int mouse_preempted = 0; /* non-zero when XMenu gobbles mouse events */ |
950 | ||
951 | /* Set the mouse pointer shape according to whether it is in the | |
952 | area where the mouse highlight is in effect. */ | |
953 | static void | |
954 | IT_set_mouse_pointer (int mode) | |
955 | { | |
956 | /* A no-op for now. DOS text-mode mouse pointer doesn't offer too | |
957 | many possibilities to change its shape, and the available | |
958 | functionality pretty much sucks (e.g., almost every reasonable | |
959 | shape will conceal the character it is on). Since the color of | |
960 | the pointer changes in the highlighted area, it is not clear to | |
961 | me whether anything else is required, anyway. */ | |
962 | } | |
963 | ||
964 | /* Display the active region described by mouse_face_* | |
965 | in its mouse-face if HL > 0, in its normal face if HL = 0. */ | |
966 | static void | |
3e1944a3 | 967 | show_mouse_face (struct tty_display_info *dpyinfo, int hl) |
41ad069b EZ |
968 | { |
969 | struct window *w = XWINDOW (dpyinfo->mouse_face_window); | |
970 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
971 | int i; | |
972 | struct face *fp; | |
3e1944a3 | 973 | struct tty_display_info *tty = FRAME_TTY (f); |
41ad069b | 974 | |
56e19ec4 | 975 | |
41ad069b EZ |
976 | /* If window is in the process of being destroyed, don't bother |
977 | doing anything. */ | |
978 | if (w->current_matrix == NULL) | |
979 | goto set_cursor_shape; | |
980 | ||
981 | /* Recognize when we are called to operate on rows that don't exist | |
982 | anymore. This can happen when a window is split. */ | |
983 | if (dpyinfo->mouse_face_end_row >= w->current_matrix->nrows) | |
984 | goto set_cursor_shape; | |
985 | ||
986 | /* There's no sense to do anything if the mouse face isn't realized. */ | |
987 | if (hl > 0) | |
988 | { | |
abf10ed7 KS |
989 | if (dpyinfo->mouse_face_hidden) |
990 | goto set_cursor_shape; | |
991 | ||
41ad069b EZ |
992 | fp = FACE_FROM_ID (SELECTED_FRAME(), dpyinfo->mouse_face_face_id); |
993 | if (!fp) | |
994 | goto set_cursor_shape; | |
995 | } | |
996 | ||
997 | /* Note that mouse_face_beg_row etc. are window relative. */ | |
998 | for (i = dpyinfo->mouse_face_beg_row; | |
999 | i <= dpyinfo->mouse_face_end_row; | |
1000 | i++) | |
1001 | { | |
1002 | int start_hpos, end_hpos; | |
1003 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, i); | |
1004 | ||
1005 | /* Don't do anything if row doesn't have valid contents. */ | |
1006 | if (!row->enabled_p) | |
1007 | continue; | |
1008 | ||
1009 | /* For all but the first row, the highlight starts at column 0. */ | |
1010 | if (i == dpyinfo->mouse_face_beg_row) | |
1011 | start_hpos = dpyinfo->mouse_face_beg_col; | |
1012 | else | |
1013 | start_hpos = 0; | |
1014 | ||
1015 | if (i == dpyinfo->mouse_face_end_row) | |
1016 | end_hpos = dpyinfo->mouse_face_end_col; | |
1017 | else | |
1018 | end_hpos = row->used[TEXT_AREA]; | |
1019 | ||
1020 | if (end_hpos <= start_hpos) | |
1021 | continue; | |
48c14970 EZ |
1022 | /* Record that some glyphs of this row are displayed in |
1023 | mouse-face. */ | |
1024 | row->mouse_face_p = hl > 0; | |
41ad069b EZ |
1025 | if (hl > 0) |
1026 | { | |
c655f6fd KS |
1027 | int vpos = row->y + WINDOW_TOP_EDGE_Y (w); |
1028 | int kstart = start_hpos + WINDOW_LEFT_EDGE_X (w); | |
41ad069b EZ |
1029 | int nglyphs = end_hpos - start_hpos; |
1030 | int offset = ScreenPrimary + 2*(vpos*screen_size_X + kstart) + 1; | |
1031 | int start_offset = offset; | |
1032 | ||
3e1944a3 EZ |
1033 | if (tty->termscript) |
1034 | fprintf (tty->termscript, "\n<MH+ %d-%d:%d>", | |
41ad069b EZ |
1035 | kstart, kstart + nglyphs - 1, vpos); |
1036 | ||
1037 | mouse_off (); | |
1038 | IT_set_face (dpyinfo->mouse_face_face_id); | |
1039 | /* Since we are going to change only the _colors_ of the | |
1040 | displayed text, there's no need to go through all the | |
1041 | pain of generating and encoding the text from the glyphs. | |
1042 | Instead, we simply poke the attribute byte of each | |
1043 | affected position in video memory with the colors | |
1044 | computed by IT_set_face! */ | |
1045 | _farsetsel (_dos_ds); | |
1046 | while (nglyphs--) | |
1047 | { | |
1048 | _farnspokeb (offset, ScreenAttrib); | |
1049 | offset += 2; | |
1050 | } | |
1051 | if (screen_virtual_segment) | |
1052 | dosv_refresh_virtual_screen (start_offset, end_hpos - start_hpos); | |
1053 | mouse_on (); | |
1054 | } | |
1055 | else | |
1056 | { | |
1057 | /* We are removing a previously-drawn mouse highlight. The | |
1058 | safest way to do so is to redraw the glyphs anew, since | |
1059 | all kinds of faces and display tables could have changed | |
1060 | behind our back. */ | |
1061 | int nglyphs = end_hpos - start_hpos; | |
1062 | int save_x = new_pos_X, save_y = new_pos_Y; | |
1063 | ||
1064 | if (end_hpos >= row->used[TEXT_AREA]) | |
1065 | nglyphs = row->used[TEXT_AREA] - start_hpos; | |
1066 | ||
1067 | /* IT_write_glyphs writes at cursor position, so we need to | |
1068 | temporarily move cursor coordinates to the beginning of | |
1069 | the highlight region. */ | |
c655f6fd KS |
1070 | new_pos_X = start_hpos + WINDOW_LEFT_EDGE_X (w); |
1071 | new_pos_Y = row->y + WINDOW_TOP_EDGE_Y (w); | |
41ad069b | 1072 | |
3e1944a3 EZ |
1073 | if (tty->termscript) |
1074 | fprintf (tty->termscript, "<MH- %d-%d:%d>", | |
41ad069b | 1075 | new_pos_X, new_pos_X + nglyphs - 1, new_pos_Y); |
3e1944a3 EZ |
1076 | IT_write_glyphs (f, row->glyphs[TEXT_AREA] + start_hpos, nglyphs); |
1077 | if (tty->termscript) | |
1078 | fputs ("\n", tty->termscript); | |
41ad069b EZ |
1079 | new_pos_X = save_x; |
1080 | new_pos_Y = save_y; | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | set_cursor_shape: | |
41ad069b EZ |
1085 | /* Change the mouse pointer shape. */ |
1086 | IT_set_mouse_pointer (hl); | |
1087 | } | |
1088 | ||
1089 | /* Clear out the mouse-highlighted active region. | |
1090 | Redraw it un-highlighted first. */ | |
1091 | static void | |
3e1944a3 | 1092 | clear_mouse_face (struct tty_display_info *dpyinfo) |
41ad069b | 1093 | { |
6b61353c | 1094 | if (!dpyinfo->mouse_face_hidden && ! NILP (dpyinfo->mouse_face_window)) |
41ad069b EZ |
1095 | show_mouse_face (dpyinfo, 0); |
1096 | ||
1097 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
1098 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
1099 | dpyinfo->mouse_face_window = Qnil; | |
1100 | } | |
1101 | ||
1102 | /* Find the glyph matrix position of buffer position POS in window W. | |
1103 | *HPOS and *VPOS are set to the positions found. W's current glyphs | |
1104 | must be up to date. If POS is above window start return (0, 0). | |
1105 | If POS is after end of W, return end of last line in W. */ | |
1106 | static int | |
1107 | fast_find_position (struct window *w, int pos, int *hpos, int *vpos) | |
1108 | { | |
56e19ec4 | 1109 | int i, lastcol, line_start_position, maybe_next_line_p = 0; |
41ad069b | 1110 | int yb = window_text_bottom_y (w); |
56e19ec4 | 1111 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, 0), *best_row = row; |
41ad069b EZ |
1112 | |
1113 | while (row->y < yb) | |
1114 | { | |
1115 | if (row->used[TEXT_AREA]) | |
1116 | line_start_position = row->glyphs[TEXT_AREA]->charpos; | |
1117 | else | |
1118 | line_start_position = 0; | |
1119 | ||
1120 | if (line_start_position > pos) | |
1121 | break; | |
1122 | /* If the position sought is the end of the buffer, | |
1123 | don't include the blank lines at the bottom of the window. */ | |
1124 | else if (line_start_position == pos | |
1125 | && pos == BUF_ZV (XBUFFER (w->buffer))) | |
1126 | { | |
1127 | maybe_next_line_p = 1; | |
1128 | break; | |
1129 | } | |
1130 | else if (line_start_position > 0) | |
1131 | best_row = row; | |
440ffd67 EZ |
1132 | |
1133 | /* Don't overstep the last matrix row, lest we get into the | |
1134 | never-never land... */ | |
1135 | if (row->y + 1 >= yb) | |
1136 | break; | |
56e19ec4 | 1137 | |
41ad069b EZ |
1138 | ++row; |
1139 | } | |
56e19ec4 | 1140 | |
41ad069b EZ |
1141 | /* Find the right column within BEST_ROW. */ |
1142 | lastcol = 0; | |
1143 | row = best_row; | |
1144 | for (i = 0; i < row->used[TEXT_AREA]; i++) | |
1145 | { | |
1146 | struct glyph *glyph = row->glyphs[TEXT_AREA] + i; | |
1147 | int charpos; | |
1148 | ||
1149 | charpos = glyph->charpos; | |
1150 | if (charpos == pos) | |
1151 | { | |
1152 | *hpos = i; | |
1153 | *vpos = row->y; | |
1154 | return 1; | |
1155 | } | |
1156 | else if (charpos > pos) | |
1157 | break; | |
1158 | else if (charpos > 0) | |
1159 | lastcol = i; | |
1160 | } | |
1161 | ||
1162 | /* If we're looking for the end of the buffer, | |
1163 | and we didn't find it in the line we scanned, | |
1164 | use the start of the following line. */ | |
1165 | if (maybe_next_line_p) | |
1166 | { | |
1167 | ++row; | |
1168 | lastcol = 0; | |
1169 | } | |
1170 | ||
1171 | *vpos = row->y; | |
1172 | *hpos = lastcol + 1; | |
1173 | return 0; | |
1174 | } | |
1175 | ||
1176 | /* Take proper action when mouse has moved to the mode or top line of | |
1177 | window W, x-position X. MODE_LINE_P non-zero means mouse is on the | |
1178 | mode line. X is relative to the start of the text display area of | |
377df9e2 | 1179 | W, so the width of fringes and scroll bars must be subtracted |
41ad069b EZ |
1180 | to get a position relative to the start of the mode line. */ |
1181 | static void | |
1182 | IT_note_mode_line_highlight (struct window *w, int x, int mode_line_p) | |
1183 | { | |
1184 | struct frame *f = XFRAME (w->frame); | |
3e1944a3 | 1185 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
41ad069b EZ |
1186 | struct glyph_row *row; |
1187 | ||
1188 | if (mode_line_p) | |
1189 | row = MATRIX_MODE_LINE_ROW (w->current_matrix); | |
1190 | else | |
1191 | row = MATRIX_HEADER_LINE_ROW (w->current_matrix); | |
56e19ec4 | 1192 | |
41ad069b EZ |
1193 | if (row->enabled_p) |
1194 | { | |
1195 | extern Lisp_Object Qhelp_echo; | |
1196 | struct glyph *glyph, *end; | |
1197 | Lisp_Object help, map; | |
56e19ec4 | 1198 | |
41ad069b | 1199 | /* Find the glyph under X. */ |
c655f6fd KS |
1200 | glyph = (row->glyphs[TEXT_AREA] |
1201 | + x | |
6b61353c | 1202 | /* in case someone implements scroll bars some day... */ |
c655f6fd | 1203 | - WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH (w)); |
41ad069b EZ |
1204 | end = glyph + row->used[TEXT_AREA]; |
1205 | if (glyph < end | |
1206 | && STRINGP (glyph->object) | |
d5db4077 | 1207 | && STRING_INTERVALS (glyph->object) |
41ad069b | 1208 | && glyph->charpos >= 0 |
d5db4077 | 1209 | && glyph->charpos < SCHARS (glyph->object)) |
41ad069b EZ |
1210 | { |
1211 | /* If we're on a string with `help-echo' text property, | |
1212 | arrange for the help to be displayed. This is done by | |
1213 | setting the global variable help_echo to the help string. */ | |
1214 | help = Fget_text_property (make_number (glyph->charpos), | |
1215 | Qhelp_echo, glyph->object); | |
b7e80413 | 1216 | if (!NILP (help)) |
48c14970 | 1217 | { |
02d4b97d | 1218 | help_echo_string = help; |
48c14970 EZ |
1219 | XSETWINDOW (help_echo_window, w); |
1220 | help_echo_object = glyph->object; | |
1221 | help_echo_pos = glyph->charpos; | |
1222 | } | |
41ad069b EZ |
1223 | } |
1224 | } | |
1225 | } | |
1226 | ||
1227 | /* Take proper action when the mouse has moved to position X, Y on | |
1228 | frame F as regards highlighting characters that have mouse-face | |
1229 | properties. Also de-highlighting chars where the mouse was before. | |
1230 | X and Y can be negative or out of range. */ | |
1231 | static void | |
1232 | IT_note_mouse_highlight (struct frame *f, int x, int y) | |
1233 | { | |
3e1944a3 | 1234 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
02d4b97d | 1235 | enum window_part part = ON_NOTHING; |
41ad069b EZ |
1236 | Lisp_Object window; |
1237 | struct window *w; | |
1238 | ||
1239 | /* When a menu is active, don't highlight because this looks odd. */ | |
1240 | if (mouse_preempted) | |
1241 | return; | |
1242 | ||
abf10ed7 | 1243 | if (NILP (Vmouse_highlight) |
515d0d0e | 1244 | || !f->glyphs_initialized_p) |
41ad069b EZ |
1245 | return; |
1246 | ||
1247 | dpyinfo->mouse_face_mouse_x = x; | |
1248 | dpyinfo->mouse_face_mouse_y = y; | |
1249 | dpyinfo->mouse_face_mouse_frame = f; | |
1250 | ||
1251 | if (dpyinfo->mouse_face_defer) | |
1252 | return; | |
1253 | ||
1254 | if (gc_in_progress) | |
1255 | { | |
1256 | dpyinfo->mouse_face_deferred_gc = 1; | |
1257 | return; | |
1258 | } | |
1259 | ||
1260 | /* Which window is that in? */ | |
c655f6fd | 1261 | window = window_from_coordinates (f, x, y, &part, &x, &y, 0); |
41ad069b EZ |
1262 | |
1263 | /* If we were displaying active text in another window, clear that. */ | |
1264 | if (! EQ (window, dpyinfo->mouse_face_window)) | |
1265 | clear_mouse_face (dpyinfo); | |
1266 | ||
1267 | /* Not on a window -> return. */ | |
1268 | if (!WINDOWP (window)) | |
1269 | return; | |
1270 | ||
1271 | /* Convert to window-relative coordinates. */ | |
1272 | w = XWINDOW (window); | |
41ad069b | 1273 | |
02d4b97d | 1274 | if (part == ON_MODE_LINE || part == ON_HEADER_LINE) |
41ad069b EZ |
1275 | { |
1276 | /* Mouse is on the mode or top line. */ | |
02d4b97d | 1277 | IT_note_mode_line_highlight (w, x, part == ON_MODE_LINE); |
41ad069b EZ |
1278 | return; |
1279 | } | |
c655f6fd KS |
1280 | |
1281 | IT_set_mouse_pointer (0); | |
41ad069b EZ |
1282 | |
1283 | /* Are we in a window whose display is up to date? | |
1284 | And verify the buffer's text has not changed. */ | |
02d4b97d | 1285 | if (part == ON_TEXT |
41ad069b EZ |
1286 | && EQ (w->window_end_valid, w->buffer) |
1287 | && XFASTINT (w->last_modified) == BUF_MODIFF (XBUFFER (w->buffer)) | |
1288 | && (XFASTINT (w->last_overlay_modified) | |
1289 | == BUF_OVERLAY_MODIFF (XBUFFER (w->buffer)))) | |
1290 | { | |
56e19ec4 | 1291 | int pos, i, nrows = w->current_matrix->nrows; |
41ad069b EZ |
1292 | struct glyph_row *row; |
1293 | struct glyph *glyph; | |
1294 | ||
1295 | /* Find the glyph under X/Y. */ | |
1296 | glyph = NULL; | |
440ffd67 | 1297 | if (y >= 0 && y < nrows) |
41ad069b EZ |
1298 | { |
1299 | row = MATRIX_ROW (w->current_matrix, y); | |
440ffd67 EZ |
1300 | /* Give up if some row before the one we are looking for is |
1301 | not enabled. */ | |
1302 | for (i = 0; i <= y; i++) | |
1303 | if (!MATRIX_ROW (w->current_matrix, i)->enabled_p) | |
1304 | break; | |
1305 | if (i > y /* all rows upto and including the one at Y are enabled */ | |
41ad069b EZ |
1306 | && row->displays_text_p |
1307 | && x < window_box_width (w, TEXT_AREA)) | |
1308 | { | |
1309 | glyph = row->glyphs[TEXT_AREA]; | |
1310 | if (x >= row->used[TEXT_AREA]) | |
1311 | glyph = NULL; | |
1312 | else | |
1313 | { | |
1314 | glyph += x; | |
1315 | if (!BUFFERP (glyph->object)) | |
1316 | glyph = NULL; | |
1317 | } | |
1318 | } | |
1319 | } | |
1320 | ||
1321 | /* Clear mouse face if X/Y not over text. */ | |
1322 | if (glyph == NULL) | |
1323 | { | |
1324 | clear_mouse_face (dpyinfo); | |
1325 | return; | |
1326 | } | |
1327 | ||
1328 | if (!BUFFERP (glyph->object)) | |
1329 | abort (); | |
1330 | pos = glyph->charpos; | |
1331 | ||
1332 | /* Check for mouse-face and help-echo. */ | |
1333 | { | |
1334 | extern Lisp_Object Qmouse_face; | |
56e19ec4 | 1335 | Lisp_Object mouse_face, overlay, position, *overlay_vec; |
3b8c0c70 | 1336 | int noverlays, obegv, ozv; |
41ad069b | 1337 | struct buffer *obuf; |
41ad069b EZ |
1338 | |
1339 | /* If we get an out-of-range value, return now; avoid an error. */ | |
1340 | if (pos > BUF_Z (XBUFFER (w->buffer))) | |
1341 | return; | |
1342 | ||
1343 | /* Make the window's buffer temporarily current for | |
1344 | overlays_at and compute_char_face. */ | |
1345 | obuf = current_buffer; | |
1346 | current_buffer = XBUFFER (w->buffer); | |
1347 | obegv = BEGV; | |
1348 | ozv = ZV; | |
1349 | BEGV = BEG; | |
1350 | ZV = Z; | |
1351 | ||
1352 | /* Is this char mouse-active or does it have help-echo? */ | |
1353 | XSETINT (position, pos); | |
1354 | ||
1a8da670 KS |
1355 | /* Put all the overlays we want in a vector in overlay_vec. */ |
1356 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, NULL, 0); | |
f0a4139c | 1357 | /* Sort overlays into increasing priority order. */ |
41ad069b EZ |
1358 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
1359 | ||
1360 | /* Check mouse-face highlighting. */ | |
1361 | if (! (EQ (window, dpyinfo->mouse_face_window) | |
1362 | && y >= dpyinfo->mouse_face_beg_row | |
1363 | && y <= dpyinfo->mouse_face_end_row | |
1364 | && (y > dpyinfo->mouse_face_beg_row | |
1365 | || x >= dpyinfo->mouse_face_beg_col) | |
1366 | && (y < dpyinfo->mouse_face_end_row | |
1367 | || x < dpyinfo->mouse_face_end_col | |
1368 | || dpyinfo->mouse_face_past_end))) | |
1369 | { | |
1370 | /* Clear the display of the old active region, if any. */ | |
1371 | clear_mouse_face (dpyinfo); | |
1372 | ||
1373 | /* Find highest priority overlay that has a mouse-face prop. */ | |
1374 | overlay = Qnil; | |
f0a4139c | 1375 | for (i = noverlays - 1; i >= 0; --i) |
41ad069b EZ |
1376 | { |
1377 | mouse_face = Foverlay_get (overlay_vec[i], Qmouse_face); | |
1378 | if (!NILP (mouse_face)) | |
1379 | { | |
1380 | overlay = overlay_vec[i]; | |
1381 | break; | |
1382 | } | |
1383 | } | |
1384 | ||
1385 | /* If no overlay applies, get a text property. */ | |
1386 | if (NILP (overlay)) | |
1387 | mouse_face = Fget_text_property (position, Qmouse_face, | |
1388 | w->buffer); | |
1389 | ||
1390 | /* Handle the overlay case. */ | |
1391 | if (! NILP (overlay)) | |
1392 | { | |
1393 | /* Find the range of text around this char that | |
1394 | should be active. */ | |
1395 | Lisp_Object before, after; | |
0f8b27ea | 1396 | EMACS_INT ignore; |
41ad069b EZ |
1397 | |
1398 | before = Foverlay_start (overlay); | |
1399 | after = Foverlay_end (overlay); | |
1400 | /* Record this as the current active region. */ | |
1401 | fast_find_position (w, XFASTINT (before), | |
1402 | &dpyinfo->mouse_face_beg_col, | |
1403 | &dpyinfo->mouse_face_beg_row); | |
1404 | dpyinfo->mouse_face_past_end | |
1405 | = !fast_find_position (w, XFASTINT (after), | |
1406 | &dpyinfo->mouse_face_end_col, | |
1407 | &dpyinfo->mouse_face_end_row); | |
1408 | dpyinfo->mouse_face_window = window; | |
1409 | dpyinfo->mouse_face_face_id | |
1410 | = face_at_buffer_position (w, pos, 0, 0, | |
0d6239f1 | 1411 | &ignore, pos + 1, |
6970f632 CY |
1412 | !dpyinfo->mouse_face_hidden, |
1413 | -1); | |
41ad069b EZ |
1414 | |
1415 | /* Display it as active. */ | |
1416 | show_mouse_face (dpyinfo, 1); | |
1417 | } | |
1418 | /* Handle the text property case. */ | |
1419 | else if (! NILP (mouse_face)) | |
1420 | { | |
1421 | /* Find the range of text around this char that | |
1422 | should be active. */ | |
1423 | Lisp_Object before, after, beginning, end; | |
0f8b27ea | 1424 | EMACS_INT ignore; |
41ad069b EZ |
1425 | |
1426 | beginning = Fmarker_position (w->start); | |
1427 | XSETINT (end, (BUF_Z (XBUFFER (w->buffer)) | |
1428 | - XFASTINT (w->window_end_pos))); | |
1429 | before | |
1430 | = Fprevious_single_property_change (make_number (pos + 1), | |
1431 | Qmouse_face, | |
1432 | w->buffer, beginning); | |
1433 | after | |
1434 | = Fnext_single_property_change (position, Qmouse_face, | |
1435 | w->buffer, end); | |
1436 | /* Record this as the current active region. */ | |
1437 | fast_find_position (w, XFASTINT (before), | |
1438 | &dpyinfo->mouse_face_beg_col, | |
1439 | &dpyinfo->mouse_face_beg_row); | |
1440 | dpyinfo->mouse_face_past_end | |
1441 | = !fast_find_position (w, XFASTINT (after), | |
1442 | &dpyinfo->mouse_face_end_col, | |
1443 | &dpyinfo->mouse_face_end_row); | |
1444 | dpyinfo->mouse_face_window = window; | |
1445 | dpyinfo->mouse_face_face_id | |
1446 | = face_at_buffer_position (w, pos, 0, 0, | |
0d6239f1 | 1447 | &ignore, pos + 1, |
6970f632 CY |
1448 | !dpyinfo->mouse_face_hidden, |
1449 | -1); | |
41ad069b EZ |
1450 | |
1451 | /* Display it as active. */ | |
1452 | show_mouse_face (dpyinfo, 1); | |
1453 | } | |
1454 | } | |
1455 | ||
1456 | /* Look for a `help-echo' property. */ | |
1457 | { | |
1458 | Lisp_Object help; | |
1459 | extern Lisp_Object Qhelp_echo; | |
1460 | ||
1461 | /* Check overlays first. */ | |
1462 | help = Qnil; | |
f0a4139c EZ |
1463 | for (i = noverlays - 1; i >= 0 && NILP (help); --i) |
1464 | { | |
1465 | overlay = overlay_vec[i]; | |
1466 | help = Foverlay_get (overlay, Qhelp_echo); | |
1467 | } | |
56e19ec4 | 1468 | |
b7e80413 | 1469 | if (!NILP (help)) |
48c14970 | 1470 | { |
02d4b97d | 1471 | help_echo_string = help; |
48c14970 | 1472 | help_echo_window = window; |
f0a4139c | 1473 | help_echo_object = overlay; |
48c14970 EZ |
1474 | help_echo_pos = pos; |
1475 | } | |
1476 | /* Try text properties. */ | |
1477 | else if (NILP (help) | |
1478 | && ((STRINGP (glyph->object) | |
1479 | && glyph->charpos >= 0 | |
d5db4077 | 1480 | && glyph->charpos < SCHARS (glyph->object)) |
48c14970 EZ |
1481 | || (BUFFERP (glyph->object) |
1482 | && glyph->charpos >= BEGV | |
1483 | && glyph->charpos < ZV))) | |
1484 | { | |
1485 | help = Fget_text_property (make_number (glyph->charpos), | |
1486 | Qhelp_echo, glyph->object); | |
1487 | if (!NILP (help)) | |
1488 | { | |
02d4b97d | 1489 | help_echo_string = help; |
48c14970 EZ |
1490 | help_echo_window = window; |
1491 | help_echo_object = glyph->object; | |
1492 | help_echo_pos = glyph->charpos; | |
1493 | } | |
1494 | } | |
41ad069b | 1495 | } |
56e19ec4 | 1496 | |
41ad069b EZ |
1497 | BEGV = obegv; |
1498 | ZV = ozv; | |
1499 | current_buffer = obuf; | |
1500 | } | |
1501 | } | |
1502 | } | |
1503 | ||
71f65669 | 1504 | static void |
3e1944a3 | 1505 | IT_clear_end_of_line (struct frame *f, int first_unused) |
f32d4091 KS |
1506 | { |
1507 | char *spaces, *sp; | |
56e19ec4 | 1508 | int i, j, offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 | 1509 | extern int fatal_error_in_progress; |
3e1944a3 | 1510 | struct tty_display_info *tty = FRAME_TTY (f); |
aa9ce936 | 1511 | |
2d764c78 | 1512 | if (new_pos_X >= first_unused || fatal_error_in_progress) |
aa9ce936 | 1513 | return; |
f32d4091 KS |
1514 | |
1515 | IT_set_face (0); | |
2d764c78 | 1516 | i = (j = first_unused - new_pos_X) * 2; |
3e1944a3 EZ |
1517 | if (tty->termscript) |
1518 | fprintf (tty->termscript, "<CLR:EOL[%d..%d)>", new_pos_X, first_unused); | |
f32d4091 | 1519 | spaces = sp = alloca (i); |
56e19ec4 | 1520 | |
f32d4091 | 1521 | while (--j >= 0) |
aee81730 | 1522 | { |
f32d4091 KS |
1523 | *sp++ = ' '; |
1524 | *sp++ = ScreenAttrib; | |
aee81730 RS |
1525 | } |
1526 | ||
f32d4091 | 1527 | mouse_off_maybe (); |
039274cf EZ |
1528 | dosmemput (spaces, i, (int)ScreenPrimary + offset); |
1529 | if (screen_virtual_segment) | |
1530 | dosv_refresh_virtual_screen (offset, i / 2); | |
2d764c78 EZ |
1531 | |
1532 | /* clear_end_of_line_raw on term.c leaves the cursor at first_unused. | |
1533 | Let's follow their lead, in case someone relies on this. */ | |
1534 | new_pos_X = first_unused; | |
aee81730 RS |
1535 | } |
1536 | ||
71f65669 | 1537 | static void |
3e1944a3 | 1538 | IT_clear_screen (struct frame *f) |
f32d4091 | 1539 | { |
3e1944a3 EZ |
1540 | struct tty_display_info *tty = FRAME_TTY (f); |
1541 | ||
1542 | if (tty->termscript) | |
1543 | fprintf (tty->termscript, "<CLR:SCR>"); | |
deece6f5 EZ |
1544 | /* We are sometimes called (from clear_garbaged_frames) when a new |
1545 | frame is being created, but its faces are not yet realized. In | |
1546 | such a case we cannot call IT_set_face, since it will fail to find | |
1547 | any valid faces and will abort. Instead, use the initial screen | |
1548 | colors; that should mimic what a Unix tty does, which simply clears | |
1549 | the screen with whatever default colors are in use. */ | |
1550 | if (FACE_FROM_ID (SELECTED_FRAME (), DEFAULT_FACE_ID) == NULL) | |
1551 | ScreenAttrib = (initial_screen_colors[0] << 4) | initial_screen_colors[1]; | |
1552 | else | |
1553 | IT_set_face (0); | |
f32d4091 KS |
1554 | mouse_off (); |
1555 | ScreenClear (); | |
039274cf EZ |
1556 | if (screen_virtual_segment) |
1557 | dosv_refresh_virtual_screen (0, screen_size); | |
f32d4091 KS |
1558 | new_pos_X = new_pos_Y = 0; |
1559 | } | |
1560 | ||
71f65669 | 1561 | static void |
3e1944a3 | 1562 | IT_clear_to_end (struct frame *f) |
f32d4091 | 1563 | { |
3e1944a3 EZ |
1564 | struct tty_display_info *tty = FRAME_TTY (f); |
1565 | ||
1566 | if (tty->termscript) | |
1567 | fprintf (tty->termscript, "<CLR:EOS>"); | |
f32d4091 KS |
1568 | |
1569 | while (new_pos_Y < screen_size_Y) { | |
1570 | new_pos_X = 0; | |
3e1944a3 | 1571 | IT_clear_end_of_line (f, screen_size_X); |
f32d4091 KS |
1572 | new_pos_Y++; |
1573 | } | |
1574 | } | |
1575 | ||
71f65669 | 1576 | static void |
3e1944a3 | 1577 | IT_cursor_to (struct frame *f, int y, int x) |
f32d4091 | 1578 | { |
3e1944a3 EZ |
1579 | struct tty_display_info *tty = FRAME_TTY (f); |
1580 | ||
1581 | if (tty->termscript) | |
1582 | fprintf (tty->termscript, "\n<XY=%dx%d>", x, y); | |
f32d4091 KS |
1583 | new_pos_X = x; |
1584 | new_pos_Y = y; | |
1585 | } | |
1586 | ||
fc171623 KH |
1587 | static int cursor_cleared; |
1588 | ||
d1d5dc19 | 1589 | static void |
fc171623 KH |
1590 | IT_display_cursor (int on) |
1591 | { | |
3e1944a3 EZ |
1592 | struct tty_display_info *tty = CURTTY (); |
1593 | ||
fc171623 KH |
1594 | if (on && cursor_cleared) |
1595 | { | |
1596 | ScreenSetCursor (current_pos_Y, current_pos_X); | |
1597 | cursor_cleared = 0; | |
b04021eb EZ |
1598 | if (tty->termscript) |
1599 | fprintf (tty->termscript, "\nCURSOR ON"); | |
fc171623 KH |
1600 | } |
1601 | else if (!on && !cursor_cleared) | |
1602 | { | |
1603 | ScreenSetCursor (-1, -1); | |
1604 | cursor_cleared = 1; | |
b04021eb EZ |
1605 | if (tty->termscript) |
1606 | fprintf (tty->termscript, "\nCURSOR OFF"); | |
fc171623 KH |
1607 | } |
1608 | } | |
1609 | ||
1610 | /* Emacs calls cursor-movement functions a lot when it updates the | |
1611 | display (probably a legacy of old terminals where you cannot | |
1612 | update a screen line without first moving the cursor there). | |
1613 | However, cursor movement is expensive on MSDOS (it calls a slow | |
1614 | BIOS function and requires 2 mode switches), while actual screen | |
1615 | updates access the video memory directly and don't depend on | |
1616 | cursor position. To avoid slowing down the redisplay, we cheat: | |
1617 | all functions that move the cursor only set internal variables | |
1618 | which record the cursor position, whereas the cursor is only | |
1619 | moved to its final position whenever screen update is complete. | |
1620 | ||
1621 | `IT_cmgoto' is called from the keyboard reading loop and when the | |
1622 | frame update is complete. This means that we are ready for user | |
1623 | input, so we update the cursor position to show where the point is, | |
1624 | and also make the mouse pointer visible. | |
1625 | ||
1626 | Special treatment is required when the cursor is in the echo area, | |
1627 | to put the cursor at the end of the text displayed there. */ | |
1628 | ||
71f65669 EZ |
1629 | static void |
1630 | IT_cmgoto (FRAME_PTR f) | |
fc171623 KH |
1631 | { |
1632 | /* Only set the cursor to where it should be if the display is | |
1633 | already in sync with the window contents. */ | |
2d764c78 | 1634 | int update_cursor_pos = 1; /* MODIFF == unchanged_modified; */ |
3e1944a3 | 1635 | struct tty_display_info *tty = FRAME_TTY (f); |
2d764c78 EZ |
1636 | |
1637 | /* FIXME: This needs to be rewritten for the new redisplay, or | |
1638 | removed. */ | |
1639 | #if 0 | |
06da1de1 EZ |
1640 | static int previous_pos_X = -1; |
1641 | ||
2d764c78 EZ |
1642 | update_cursor_pos = 1; /* temporary!!! */ |
1643 | ||
06da1de1 EZ |
1644 | /* If the display is in sync, forget any previous knowledge about |
1645 | cursor position. This is primarily for unexpected events like | |
1646 | C-g in the minibuffer. */ | |
1647 | if (update_cursor_pos && previous_pos_X >= 0) | |
1648 | previous_pos_X = -1; | |
1649 | /* If we are in the echo area, put the cursor at the | |
1650 | end of the echo area message. */ | |
fc171623 | 1651 | if (!update_cursor_pos |
c655f6fd | 1652 | && WINDOW_TOP_EDGE_LINE (XWINDOW (FRAME_MINIBUF_WINDOW (f))) <= new_pos_Y) |
fc171623 | 1653 | { |
06da1de1 EZ |
1654 | int tem_X = current_pos_X, dummy; |
1655 | ||
1656 | if (echo_area_glyphs) | |
1657 | { | |
1658 | tem_X = echo_area_glyphs_length; | |
1659 | /* Save current cursor position, to be restored after the | |
1660 | echo area message is erased. Only remember one level | |
1661 | of previous cursor position. */ | |
1662 | if (previous_pos_X == -1) | |
1663 | ScreenGetCursor (&dummy, &previous_pos_X); | |
1664 | } | |
1665 | else if (previous_pos_X >= 0) | |
1666 | { | |
1667 | /* We wind up here after the echo area message is erased. | |
1668 | Restore the cursor position we remembered above. */ | |
1669 | tem_X = previous_pos_X; | |
1670 | previous_pos_X = -1; | |
1671 | } | |
9a599a60 | 1672 | |
06da1de1 | 1673 | if (current_pos_X != tem_X) |
9a599a60 EZ |
1674 | { |
1675 | new_pos_X = tem_X; | |
1676 | update_cursor_pos = 1; | |
1677 | } | |
fc171623 | 1678 | } |
2d764c78 | 1679 | #endif |
fc171623 KH |
1680 | |
1681 | if (update_cursor_pos | |
1682 | && (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y)) | |
1683 | { | |
1684 | ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X); | |
3e1944a3 EZ |
1685 | if (tty->termscript) |
1686 | fprintf (tty->termscript, "\n<CURSOR:%dx%d>", current_pos_X, current_pos_Y); | |
fc171623 KH |
1687 | } |
1688 | ||
1689 | /* Maybe cursor is invisible, so make it visible. */ | |
1690 | IT_display_cursor (1); | |
1691 | ||
1692 | /* Mouse pointer should be always visible if we are waiting for | |
1693 | keyboard input. */ | |
1694 | if (!mouse_visible) | |
1695 | mouse_on (); | |
1696 | } | |
1697 | ||
71f65669 | 1698 | static void |
41ad069b | 1699 | IT_update_begin (struct frame *f) |
f32d4091 | 1700 | { |
3e1944a3 | 1701 | struct tty_display_info *display_info = FRAME_X_DISPLAY_INFO (f); |
b9f80d41 | 1702 | struct frame *mouse_face_frame = display_info->mouse_face_mouse_frame; |
41ad069b | 1703 | |
7ccd1daf EZ |
1704 | if (display_info->termscript) |
1705 | fprintf (display_info->termscript, "\n\n<UPDATE_BEGIN"); | |
1706 | ||
41ad069b EZ |
1707 | BLOCK_INPUT; |
1708 | ||
b9f80d41 | 1709 | if (f && f == mouse_face_frame) |
41ad069b EZ |
1710 | { |
1711 | /* Don't do highlighting for mouse motion during the update. */ | |
1712 | display_info->mouse_face_defer = 1; | |
1713 | ||
1714 | /* If F needs to be redrawn, simply forget about any prior mouse | |
1715 | highlighting. */ | |
1716 | if (FRAME_GARBAGED_P (f)) | |
1717 | display_info->mouse_face_window = Qnil; | |
1718 | ||
1719 | /* Can we tell that this update does not affect the window | |
1720 | where the mouse highlight is? If so, no need to turn off. | |
48c14970 EZ |
1721 | Likewise, don't do anything if none of the enabled rows |
1722 | contains glyphs highlighted in mouse face. */ | |
8ccb9a54 EZ |
1723 | if (!NILP (display_info->mouse_face_window) |
1724 | && WINDOWP (display_info->mouse_face_window)) | |
41ad069b EZ |
1725 | { |
1726 | struct window *w = XWINDOW (display_info->mouse_face_window); | |
1727 | int i; | |
1728 | ||
8ccb9a54 EZ |
1729 | /* If the mouse highlight is in the window that was deleted |
1730 | (e.g., if it was popped by completion), clear highlight | |
1731 | unconditionally. */ | |
1732 | if (NILP (w->buffer)) | |
1733 | display_info->mouse_face_window = Qnil; | |
1734 | else | |
1735 | { | |
1736 | for (i = 0; i < w->desired_matrix->nrows; ++i) | |
48c14970 EZ |
1737 | if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i) |
1738 | && MATRIX_ROW (w->current_matrix, i)->mouse_face_p) | |
8ccb9a54 EZ |
1739 | break; |
1740 | } | |
41ad069b | 1741 | |
8ccb9a54 | 1742 | if (NILP (w->buffer) || i < w->desired_matrix->nrows) |
41ad069b EZ |
1743 | clear_mouse_face (display_info); |
1744 | } | |
1745 | } | |
b9f80d41 | 1746 | else if (mouse_face_frame && !FRAME_LIVE_P (mouse_face_frame)) |
41ad069b EZ |
1747 | { |
1748 | /* If the frame with mouse highlight was deleted, invalidate the | |
1749 | highlight info. */ | |
1750 | display_info->mouse_face_beg_row = display_info->mouse_face_beg_col = -1; | |
1751 | display_info->mouse_face_end_row = display_info->mouse_face_end_col = -1; | |
1752 | display_info->mouse_face_window = Qnil; | |
1753 | display_info->mouse_face_deferred_gc = 0; | |
1754 | display_info->mouse_face_mouse_frame = NULL; | |
1755 | } | |
1756 | ||
1757 | UNBLOCK_INPUT; | |
f32d4091 KS |
1758 | } |
1759 | ||
71f65669 | 1760 | static void |
41ad069b | 1761 | IT_update_end (struct frame *f) |
f32d4091 | 1762 | { |
7ccd1daf EZ |
1763 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
1764 | ||
1765 | if (dpyinfo->termscript) | |
1766 | fprintf (dpyinfo->termscript, "\n<UPDATE_END\n"); | |
1767 | dpyinfo->mouse_face_defer = 0; | |
41ad069b EZ |
1768 | } |
1769 | ||
1770 | static void | |
1771 | IT_frame_up_to_date (struct frame *f) | |
1772 | { | |
3e1944a3 | 1773 | struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
0c3cfc51 EZ |
1774 | Lisp_Object new_cursor, frame_desired_cursor; |
1775 | struct window *sw; | |
41ad069b EZ |
1776 | |
1777 | if (dpyinfo->mouse_face_deferred_gc | |
b9f80d41 | 1778 | || (f && f == dpyinfo->mouse_face_mouse_frame)) |
41ad069b EZ |
1779 | { |
1780 | BLOCK_INPUT; | |
1781 | if (dpyinfo->mouse_face_mouse_frame) | |
1782 | IT_note_mouse_highlight (dpyinfo->mouse_face_mouse_frame, | |
1783 | dpyinfo->mouse_face_mouse_x, | |
1784 | dpyinfo->mouse_face_mouse_y); | |
1785 | dpyinfo->mouse_face_deferred_gc = 0; | |
1786 | UNBLOCK_INPUT; | |
1787 | } | |
1788 | ||
0c3cfc51 EZ |
1789 | /* Set the cursor type to whatever they wanted. In a minibuffer |
1790 | window, we want the cursor to appear only if we are reading input | |
1791 | from this window, and we want the cursor to be taken from the | |
1792 | frame parameters. For the selected window, we use either its | |
1793 | buffer-local value or the value from the frame parameters if the | |
1794 | buffer doesn't define its local value for the cursor type. */ | |
1795 | sw = XWINDOW (f->selected_window); | |
1796 | frame_desired_cursor = Fcdr (Fassq (Qcursor_type, f->param_alist)); | |
1797 | if (cursor_in_echo_area | |
1798 | && FRAME_HAS_MINIBUF_P (f) | |
1799 | && EQ (FRAME_MINIBUF_WINDOW (f), echo_area_window) | |
1800 | && sw == XWINDOW (echo_area_window)) | |
1801 | new_cursor = frame_desired_cursor; | |
1802 | else | |
1803 | { | |
1804 | struct buffer *b = XBUFFER (sw->buffer); | |
1805 | ||
1806 | if (EQ (b->cursor_type, Qt)) | |
1807 | new_cursor = frame_desired_cursor; | |
1808 | else if (NILP (b->cursor_type)) /* nil means no cursor */ | |
1809 | new_cursor = Fcons (Qbar, make_number (0)); | |
1810 | else | |
1811 | new_cursor = b->cursor_type; | |
1812 | } | |
1813 | ||
1814 | IT_set_cursor_type (f, new_cursor); | |
8ba01a32 | 1815 | |
41ad069b | 1816 | IT_cmgoto (f); /* position cursor when update is done */ |
f32d4091 | 1817 | } |
1b94449f | 1818 | |
c77f6f1b EZ |
1819 | /* Copy LEN glyphs displayed on a single line whose vertical position |
1820 | is YPOS, beginning at horizontal position XFROM to horizontal | |
1821 | position XTO, by moving blocks in the video memory. Used by | |
1822 | functions that insert and delete glyphs. */ | |
1823 | static void | |
1824 | IT_copy_glyphs (int xfrom, int xto, size_t len, int ypos) | |
1825 | { | |
1826 | /* The offsets of source and destination relative to the | |
1827 | conventional memorty selector. */ | |
1828 | int from = 2 * (xfrom + screen_size_X * ypos) + ScreenPrimary; | |
1829 | int to = 2 * (xto + screen_size_X * ypos) + ScreenPrimary; | |
1830 | ||
1831 | if (from == to || len <= 0) | |
1832 | return; | |
1833 | ||
1834 | _farsetsel (_dos_ds); | |
1835 | ||
1836 | /* The source and destination might overlap, so we need to move | |
1837 | glyphs non-destructively. */ | |
1838 | if (from > to) | |
1839 | { | |
1840 | for ( ; len; from += 2, to += 2, len--) | |
1841 | _farnspokew (to, _farnspeekw (from)); | |
1842 | } | |
1843 | else | |
1844 | { | |
1845 | from += (len - 1) * 2; | |
1846 | to += (len - 1) * 2; | |
1847 | for ( ; len; from -= 2, to -= 2, len--) | |
1848 | _farnspokew (to, _farnspeekw (from)); | |
1849 | } | |
1850 | if (screen_virtual_segment) | |
1851 | dosv_refresh_virtual_screen (ypos * screen_size_X * 2, screen_size_X); | |
1852 | } | |
1853 | ||
1854 | /* Insert and delete glyphs. */ | |
aa9ce936 | 1855 | static void |
3a8ce822 | 1856 | IT_insert_glyphs (struct frame *f, struct glyph *start, int len) |
aa9ce936 | 1857 | { |
c77f6f1b EZ |
1858 | int shift_by_width = screen_size_X - (new_pos_X + len); |
1859 | ||
1860 | /* Shift right the glyphs from the nominal cursor position to the | |
1861 | end of this line. */ | |
1862 | IT_copy_glyphs (new_pos_X, new_pos_X + len, shift_by_width, new_pos_Y); | |
1863 | ||
1864 | /* Now write the glyphs to be inserted. */ | |
3e1944a3 | 1865 | IT_write_glyphs (f, start, len); |
aa9ce936 EZ |
1866 | } |
1867 | ||
1868 | static void | |
3a8ce822 | 1869 | IT_delete_glyphs (struct frame *f, int n) |
aa9ce936 EZ |
1870 | { |
1871 | abort (); | |
1872 | } | |
1873 | ||
211c7152 | 1874 | /* set-window-configuration on window.c needs this. */ |
3bb1f22f | 1875 | void |
3a8ce822 | 1876 | x_set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval) |
3bb1f22f | 1877 | { |
211c7152 EZ |
1878 | set_menu_bar_lines (f, value, oldval); |
1879 | } | |
3bb1f22f | 1880 | |
984f5aaa | 1881 | /* This was copied from xfaces.c */ |
3bb1f22f | 1882 | |
984f5aaa EZ |
1883 | extern Lisp_Object Qbackground_color; |
1884 | extern Lisp_Object Qforeground_color; | |
8ba01a32 | 1885 | Lisp_Object Qreverse; |
211c7152 | 1886 | extern Lisp_Object Qtitle; |
3bb1f22f | 1887 | |
48ffe371 RS |
1888 | /* IT_set_terminal_modes is called when emacs is started, |
1889 | resumed, and whenever the screen is redrawn! */ | |
f32d4091 | 1890 | |
71f65669 | 1891 | static void |
3e1944a3 | 1892 | IT_set_terminal_modes (struct terminal *term) |
f32d4091 | 1893 | { |
3e1944a3 EZ |
1894 | struct tty_display_info *tty; |
1895 | ||
1896 | /* If called with initial terminal, it's too early to do anything | |
1897 | useful. */ | |
1898 | if (term->type == output_initial) | |
1899 | return; | |
1900 | ||
1901 | tty = term->display_info.tty; | |
1902 | ||
1903 | if (tty->termscript) | |
1904 | fprintf (tty->termscript, "\n<SET_TERM>"); | |
f32d4091 KS |
1905 | |
1906 | screen_size_X = ScreenCols (); | |
1907 | screen_size_Y = ScreenRows (); | |
1908 | screen_size = screen_size_X * screen_size_Y; | |
56e19ec4 | 1909 | |
f32d4091 KS |
1910 | new_pos_X = new_pos_Y = 0; |
1911 | current_pos_X = current_pos_Y = -1; | |
1912 | ||
1913 | if (term_setup_done) | |
1914 | return; | |
1915 | term_setup_done = 1; | |
56e19ec4 | 1916 | |
f32d4091 KS |
1917 | startup_screen_size_X = screen_size_X; |
1918 | startup_screen_size_Y = screen_size_Y; | |
c9adab25 | 1919 | startup_screen_attrib = ScreenAttrib; |
f32d4091 | 1920 | |
039274cf EZ |
1921 | /* Is DOS/V (or any other RSIS software which relocates |
1922 | the screen) installed? */ | |
1923 | { | |
1924 | unsigned short es_value; | |
1925 | __dpmi_regs regs; | |
1926 | ||
1927 | regs.h.ah = 0xfe; /* get relocated screen address */ | |
1928 | if (ScreenPrimary == 0xb0000UL || ScreenPrimary == 0xb8000UL) | |
1929 | regs.x.es = (ScreenPrimary >> 4) & 0xffff; | |
1930 | else if (screen_old_address) /* already switched to Japanese mode once */ | |
1931 | regs.x.es = (screen_old_address >> 4) & 0xffff; | |
1932 | else | |
1933 | regs.x.es = ScreenMode () == 7 ? 0xb000 : 0xb800; | |
1934 | regs.x.di = 0; | |
1935 | es_value = regs.x.es; | |
1936 | __dpmi_int (0x10, ®s); | |
1937 | ||
d1d5dc19 | 1938 | if (regs.x.es != es_value) |
039274cf | 1939 | { |
d1d5dc19 EZ |
1940 | /* screen_old_address is only set if ScreenPrimary does NOT |
1941 | already point to the relocated buffer address returned by | |
1942 | the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets | |
1943 | ScreenPrimary to that address at startup under DOS/V. */ | |
1944 | if (regs.x.es != (ScreenPrimary >> 4) & 0xffff) | |
1945 | screen_old_address = ScreenPrimary; | |
039274cf EZ |
1946 | screen_virtual_segment = regs.x.es; |
1947 | screen_virtual_offset = regs.x.di; | |
1948 | ScreenPrimary = (screen_virtual_segment << 4) + screen_virtual_offset; | |
1949 | } | |
1950 | } | |
039274cf | 1951 | |
f32d4091 KS |
1952 | ScreenGetCursor (&startup_pos_Y, &startup_pos_X); |
1953 | ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2)); | |
1954 | ||
76ac1508 | 1955 | bright_bg (); |
f32d4091 KS |
1956 | } |
1957 | ||
48ffe371 RS |
1958 | /* IT_reset_terminal_modes is called when emacs is |
1959 | suspended or killed. */ | |
f32d4091 | 1960 | |
71f65669 | 1961 | static void |
3e1944a3 | 1962 | IT_reset_terminal_modes (struct terminal *term) |
f32d4091 | 1963 | { |
c9adab25 KH |
1964 | int display_row_start = (int) ScreenPrimary; |
1965 | int saved_row_len = startup_screen_size_X * 2; | |
56e19ec4 | 1966 | int update_row_len = ScreenCols () * 2, current_rows = ScreenRows (); |
c9adab25 KH |
1967 | int to_next_row = update_row_len; |
1968 | unsigned char *saved_row = startup_screen_buffer; | |
56e19ec4 | 1969 | int cursor_pos_X = ScreenCols () - 1, cursor_pos_Y = ScreenRows () - 1; |
3e1944a3 | 1970 | struct tty_display_info *tty = term->display_info.tty; |
c9adab25 | 1971 | |
3e1944a3 EZ |
1972 | if (tty->termscript) |
1973 | fprintf (tty->termscript, "\n<RESET_TERM>"); | |
f32d4091 | 1974 | |
f32d4091 KS |
1975 | if (!term_setup_done) |
1976 | return; | |
56e19ec4 | 1977 | |
c9adab25 | 1978 | mouse_off (); |
b36701cc RS |
1979 | |
1980 | /* Leave the video system in the same state as we found it, | |
1981 | as far as the blink/bright-background bit is concerned. */ | |
1982 | maybe_enable_blinking (); | |
06b1ea13 | 1983 | |
c9adab25 KH |
1984 | /* We have a situation here. |
1985 | We cannot just do ScreenUpdate(startup_screen_buffer) because | |
1986 | the luser could have changed screen dimensions inside Emacs | |
1987 | and failed (or didn't want) to restore them before killing | |
1988 | Emacs. ScreenUpdate() uses the *current* screen dimensions and | |
1989 | thus will happily use memory outside what was allocated for | |
1990 | `startup_screen_buffer'. | |
1991 | Thus we only restore as much as the current screen dimensions | |
1992 | can hold, and clear the rest (if the saved screen is smaller than | |
1993 | the current) with the color attribute saved at startup. The cursor | |
1994 | is also restored within the visible dimensions. */ | |
1995 | ||
1996 | ScreenAttrib = startup_screen_attrib; | |
c9adab25 | 1997 | |
06b1ea13 EZ |
1998 | /* Don't restore the screen if we are exiting less than 2 seconds |
1999 | after startup: we might be crashing, and the screen might show | |
2000 | some vital clues to what's wrong. */ | |
2001 | if (clock () - startup_time >= 2*CLOCKS_PER_SEC) | |
c9adab25 | 2002 | { |
06b1ea13 | 2003 | ScreenClear (); |
039274cf | 2004 | if (screen_virtual_segment) |
06b1ea13 EZ |
2005 | dosv_refresh_virtual_screen (0, screen_size); |
2006 | ||
2007 | if (update_row_len > saved_row_len) | |
2008 | update_row_len = saved_row_len; | |
2009 | if (current_rows > startup_screen_size_Y) | |
2010 | current_rows = startup_screen_size_Y; | |
2011 | ||
3e1944a3 EZ |
2012 | if (tty->termscript) |
2013 | fprintf (tty->termscript, "<SCREEN RESTORED (dimensions=%dx%d)>\n", | |
06b1ea13 EZ |
2014 | update_row_len / 2, current_rows); |
2015 | ||
2016 | while (current_rows--) | |
2017 | { | |
2018 | dosmemput (saved_row, update_row_len, display_row_start); | |
2019 | if (screen_virtual_segment) | |
2020 | dosv_refresh_virtual_screen (display_row_start - ScreenPrimary, | |
2021 | update_row_len / 2); | |
2022 | saved_row += saved_row_len; | |
2023 | display_row_start += to_next_row; | |
2024 | } | |
c9adab25 KH |
2025 | } |
2026 | if (startup_pos_X < cursor_pos_X) | |
2027 | cursor_pos_X = startup_pos_X; | |
2028 | if (startup_pos_Y < cursor_pos_Y) | |
2029 | cursor_pos_Y = startup_pos_Y; | |
2030 | ||
2031 | ScreenSetCursor (cursor_pos_Y, cursor_pos_X); | |
2032 | xfree (startup_screen_buffer); | |
3e1944a3 | 2033 | startup_screen_buffer = NULL; |
f32d4091 KS |
2034 | |
2035 | term_setup_done = 0; | |
2036 | } | |
2037 | ||
71f65669 | 2038 | static void |
3e1944a3 | 2039 | IT_set_terminal_window (struct frame *f, int foo) |
f32d4091 KS |
2040 | { |
2041 | } | |
2042 | ||
2d764c78 EZ |
2043 | /* Remember the screen colors of the curent frame, to serve as the |
2044 | default colors for newly-created frames. */ | |
2d764c78 EZ |
2045 | DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors, |
2046 | Smsdos_remember_default_colors, 1, 1, 0, | |
70da46c3 | 2047 | doc: /* Remember the screen colors of the current frame. */) |
2d764c78 EZ |
2048 | (frame) |
2049 | Lisp_Object frame; | |
2050 | { | |
2d764c78 EZ |
2051 | struct frame *f; |
2052 | ||
b7826503 | 2053 | CHECK_FRAME (frame); |
f12dae2f | 2054 | f = XFRAME (frame); |
2d764c78 | 2055 | |
ff12cd1d EZ |
2056 | /* This function is called after applying default-frame-alist to the |
2057 | initial frame. At that time, if reverse-colors option was | |
2058 | specified in default-frame-alist, it was already applied, and | |
f12dae2f EZ |
2059 | frame colors are reversed. */ |
2060 | initial_screen_colors[0] = FRAME_FOREGROUND_PIXEL (f); | |
2061 | initial_screen_colors[1] = FRAME_BACKGROUND_PIXEL (f); | |
2d764c78 EZ |
2062 | } |
2063 | ||
f32d4091 | 2064 | void |
3a8ce822 | 2065 | IT_set_frame_parameters (struct frame *f, Lisp_Object alist) |
f32d4091 KS |
2066 | { |
2067 | Lisp_Object tail; | |
56e19ec4 | 2068 | int i, j, length = XINT (Flength (alist)); |
db722735 RS |
2069 | Lisp_Object *parms |
2070 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2071 | Lisp_Object *values | |
2072 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2d764c78 | 2073 | /* Do we have to reverse the foreground and background colors? */ |
8ba01a32 | 2074 | int reverse = EQ (Fcdr (Fassq (Qreverse, f->param_alist)), Qt); |
2d764c78 | 2075 | int redraw = 0, fg_set = 0, bg_set = 0; |
56e19ec4 | 2076 | unsigned long orig_fg, orig_bg; |
546701f5 | 2077 | Lisp_Object frame_bg, frame_fg; |
3e1944a3 | 2078 | struct tty_display_info *tty = FRAME_TTY (f); |
1e6255ae EZ |
2079 | extern Lisp_Object Qmenu_bar_lines; |
2080 | extern Lisp_Object Vmenu_bar_mode; | |
2081 | int menu_bar_lines_defined = | |
2082 | !NILP (Fassq (Qmenu_bar_lines, Vdefault_frame_alist)); | |
2d764c78 EZ |
2083 | |
2084 | /* If we are creating a new frame, begin with the original screen colors | |
2085 | used for the initial frame. */ | |
76ea4cc9 | 2086 | if (!f->default_face_done_p |
2d764c78 EZ |
2087 | && initial_screen_colors[0] != -1 && initial_screen_colors[1] != -1) |
2088 | { | |
2089 | FRAME_FOREGROUND_PIXEL (f) = initial_screen_colors[0]; | |
2090 | FRAME_BACKGROUND_PIXEL (f) = initial_screen_colors[1]; | |
f12dae2f | 2091 | init_frame_faces (f); |
76ea4cc9 | 2092 | f->default_face_done_p = 1; |
2d764c78 | 2093 | } |
76ea4cc9 EZ |
2094 | orig_fg = reverse ? FRAME_BACKGROUND_PIXEL (f) : FRAME_FOREGROUND_PIXEL (f); |
2095 | orig_bg = reverse ? FRAME_FOREGROUND_PIXEL (f) : FRAME_BACKGROUND_PIXEL (f); | |
db722735 RS |
2096 | |
2097 | /* Extract parm names and values into those vectors. */ | |
2098 | i = 0; | |
f32d4091 KS |
2099 | for (tail = alist; CONSP (tail); tail = Fcdr (tail)) |
2100 | { | |
db722735 | 2101 | Lisp_Object elt; |
f32d4091 KS |
2102 | |
2103 | elt = Fcar (tail); | |
db722735 | 2104 | parms[i] = Fcar (elt); |
b7826503 | 2105 | CHECK_SYMBOL (parms[i]); |
db722735 RS |
2106 | values[i] = Fcdr (elt); |
2107 | i++; | |
2108 | } | |
2109 | ||
2d764c78 | 2110 | j = i; |
db722735 | 2111 | |
2d764c78 EZ |
2112 | for (i = 0; i < j; i++) |
2113 | { | |
1e21fe48 EZ |
2114 | Lisp_Object prop, val; |
2115 | ||
2116 | prop = parms[i]; | |
2117 | val = values[i]; | |
2d764c78 | 2118 | |
8ba01a32 | 2119 | if (EQ (prop, Qreverse)) |
2d764c78 | 2120 | reverse = EQ (val, Qt); |
1e6255ae EZ |
2121 | else if (!menu_bar_lines_defined && EQ (prop, Qmenu_bar_lines)) |
2122 | menu_bar_lines_defined = 1; | |
2d764c78 | 2123 | } |
546701f5 | 2124 | |
76ea4cc9 | 2125 | if (tty->termscript && reverse) |
3e1944a3 | 2126 | fprintf (tty->termscript, "<INVERSE-VIDEO>\n"); |
2d764c78 EZ |
2127 | |
2128 | /* Now process the alist elements in reverse of specified order. */ | |
db722735 RS |
2129 | for (i--; i >= 0; i--) |
2130 | { | |
76ea4cc9 | 2131 | Lisp_Object prop, val; |
1e21fe48 EZ |
2132 | |
2133 | prop = parms[i]; | |
2134 | val = values[i]; | |
f32d4091 | 2135 | |
4e825084 | 2136 | if (EQ (prop, Qforeground_color)) |
f32d4091 | 2137 | { |
76ea4cc9 | 2138 | unsigned long new_color = load_color (f, NULL, val, reverse |
2d764c78 EZ |
2139 | ? LFACE_BACKGROUND_INDEX |
2140 | : LFACE_FOREGROUND_INDEX); | |
3b620731 EZ |
2141 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2142 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2143 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2144 | { |
76ea4cc9 EZ |
2145 | if (!reverse) |
2146 | { | |
2147 | FRAME_FOREGROUND_PIXEL (f) = new_color; | |
2148 | /* Make sure the foreground of the default face for | |
2149 | this frame is changed as well. */ | |
2150 | update_face_from_frame_parameter (f, Qforeground_color, val); | |
2151 | fg_set = 1; | |
2152 | if (tty->termscript) | |
2153 | fprintf (tty->termscript, "<FGCOLOR %lu>\n", new_color); | |
2154 | } | |
2155 | else | |
2156 | { | |
2157 | FRAME_BACKGROUND_PIXEL (f) = new_color; | |
2158 | update_face_from_frame_parameter (f, Qbackground_color, val); | |
2159 | bg_set = 1; | |
2160 | if (tty->termscript) | |
2161 | fprintf (tty->termscript, "<BGCOLOR %lu>\n", new_color); | |
2162 | } | |
f32d4091 KS |
2163 | redraw = 1; |
2164 | } | |
2165 | } | |
4e825084 | 2166 | else if (EQ (prop, Qbackground_color)) |
f32d4091 | 2167 | { |
76ea4cc9 | 2168 | unsigned long new_color = load_color (f, NULL, val, reverse |
2d764c78 EZ |
2169 | ? LFACE_FOREGROUND_INDEX |
2170 | : LFACE_BACKGROUND_INDEX); | |
3b620731 EZ |
2171 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2172 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2173 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2174 | { |
76ea4cc9 EZ |
2175 | if (!reverse) |
2176 | { | |
2177 | FRAME_BACKGROUND_PIXEL (f) = new_color; | |
2178 | /* Make sure the background of the default face for | |
2179 | this frame is changed as well. */ | |
2180 | bg_set = 1; | |
2181 | update_face_from_frame_parameter (f, Qbackground_color, val); | |
2182 | if (tty->termscript) | |
2183 | fprintf (tty->termscript, "<BGCOLOR %lu>\n", new_color); | |
2184 | } | |
2185 | else | |
2186 | { | |
2187 | FRAME_FOREGROUND_PIXEL (f) = new_color; | |
2188 | fg_set = 1; | |
2189 | update_face_from_frame_parameter (f, Qforeground_color, val); | |
2190 | if (tty->termscript) | |
2191 | fprintf (tty->termscript, "<FGCOLOR %lu>\n", new_color); | |
2192 | } | |
f32d4091 KS |
2193 | redraw = 1; |
2194 | } | |
2195 | } | |
211c7152 EZ |
2196 | else if (EQ (prop, Qtitle)) |
2197 | { | |
2198 | x_set_title (f, val); | |
3e1944a3 EZ |
2199 | if (tty->termscript) |
2200 | fprintf (tty->termscript, "<TITLE: %s>\n", SDATA (val)); | |
211c7152 | 2201 | } |
8ba01a32 EZ |
2202 | else if (EQ (prop, Qcursor_type)) |
2203 | { | |
2204 | IT_set_cursor_type (f, val); | |
3e1944a3 EZ |
2205 | if (tty->termscript) |
2206 | fprintf (tty->termscript, "<CTYPE: %s>\n", | |
a0738471 EZ |
2207 | EQ (val, Qbar) || EQ (val, Qhbar) |
2208 | || CONSP (val) && (EQ (XCAR (val), Qbar) | |
2209 | || EQ (XCAR (val), Qhbar)) | |
8ba01a32 EZ |
2210 | ? "bar" : "box"); |
2211 | } | |
3e1944a3 EZ |
2212 | else if (EQ (prop, Qtty_type)) |
2213 | { | |
2214 | internal_terminal_init (); | |
2215 | if (tty->termscript) | |
2216 | fprintf (tty->termscript, "<TERM_INIT done, TTY_TYPE: %.*s>\n", | |
2217 | SBYTES (val), SDATA (val)); | |
2218 | } | |
db722735 | 2219 | store_frame_param (f, prop, val); |
2d764c78 | 2220 | } |
db722735 | 2221 | |
1e6255ae EZ |
2222 | /* If menu-bar-lines is neither in the frame parameters nor in |
2223 | default-frame-alist, set it according to menu-bar-mode. */ | |
2224 | if (!menu_bar_lines_defined) | |
2225 | { | |
2226 | store_frame_param (f, Qmenu_bar_lines, | |
2227 | NILP (Vmenu_bar_mode) | |
2228 | ? make_number (0) : make_number (1)); | |
2229 | if (tty->termscript) | |
2230 | fprintf (tty->termscript, "<MENU BAR LINES DEFAULTED: %d\n", | |
2231 | !NILP (Vmenu_bar_mode)); | |
2232 | } | |
2233 | ||
2d764c78 EZ |
2234 | /* If they specified "reverse", but not the colors, we need to swap |
2235 | the current frame colors. */ | |
76ea4cc9 | 2236 | if (reverse) |
2d764c78 | 2237 | { |
1e21fe48 EZ |
2238 | Lisp_Object frame; |
2239 | ||
2d764c78 EZ |
2240 | if (!fg_set) |
2241 | { | |
76ea4cc9 EZ |
2242 | FRAME_FOREGROUND_PIXEL (f) = orig_bg; |
2243 | update_face_from_frame_parameter (f, Qforeground_color, | |
2244 | tty_color_name (f, orig_bg)); | |
2d764c78 EZ |
2245 | redraw = 1; |
2246 | } | |
2247 | if (!bg_set) | |
2248 | { | |
76ea4cc9 EZ |
2249 | FRAME_BACKGROUND_PIXEL (f) = orig_fg; |
2250 | update_face_from_frame_parameter (f, Qbackground_color, | |
2251 | tty_color_name (f, orig_fg)); | |
2d764c78 EZ |
2252 | redraw = 1; |
2253 | } | |
f32d4091 KS |
2254 | } |
2255 | ||
2256 | if (redraw) | |
2257 | { | |
2d764c78 EZ |
2258 | face_change_count++; /* forces xdisp.c to recompute basic faces */ |
2259 | if (f == SELECTED_FRAME()) | |
3bb1f22f | 2260 | redraw_frame (f); |
f32d4091 KS |
2261 | } |
2262 | } | |
2263 | ||
a7cf9151 EZ |
2264 | extern void init_frame_faces (FRAME_PTR); |
2265 | ||
f32d4091 KS |
2266 | #endif /* !HAVE_X_WINDOWS */ |
2267 | ||
2268 | ||
48ffe371 RS |
2269 | /* Do we need the internal terminal? */ |
2270 | ||
f32d4091 | 2271 | void |
3a8ce822 | 2272 | internal_terminal_init (void) |
f32d4091 | 2273 | { |
2306a735 | 2274 | static int init_needed = 1; |
56e19ec4 | 2275 | char *term = getenv ("TERM"), *colors; |
2d764c78 | 2276 | struct frame *sf = SELECTED_FRAME(); |
3e1944a3 | 2277 | struct tty_display_info *tty; |
f32d4091 KS |
2278 | |
2279 | #ifdef HAVE_X_WINDOWS | |
2280 | if (!inhibit_window_system) | |
2281 | return; | |
2282 | #endif | |
2283 | ||
3e1944a3 EZ |
2284 | /* If this is the initial terminal, we are done here. */ |
2285 | if (sf->output_method == output_initial) | |
2286 | return; | |
2287 | ||
f32d4091 KS |
2288 | internal_terminal |
2289 | = (!noninteractive) && term && !strcmp (term, "internal"); | |
2290 | ||
f32d4091 KS |
2291 | #ifndef HAVE_X_WINDOWS |
2292 | if (!internal_terminal || inhibit_window_system) | |
2293 | { | |
2d764c78 | 2294 | sf->output_method = output_termcap; |
f32d4091 KS |
2295 | return; |
2296 | } | |
2297 | ||
3e1944a3 | 2298 | tty = FRAME_TTY (sf); |
f12dae2f EZ |
2299 | current_kboard->Vwindow_system = Qpc; |
2300 | sf->output_method = output_msdos_raw; | |
2306a735 | 2301 | if (init_needed) |
3e1944a3 | 2302 | { |
2306a735 EZ |
2303 | if (!tty->termscript && getenv ("EMACSTEST")) |
2304 | tty->termscript = fopen (getenv ("EMACSTEST"), "wt"); | |
2305 | if (tty->termscript) | |
2306 | { | |
2307 | time_t now = time (NULL); | |
2308 | struct tm *tnow = localtime (&now); | |
2309 | char tbuf[100]; | |
3e1944a3 | 2310 | |
2306a735 EZ |
2311 | strftime (tbuf, sizeof (tbuf) - 1, "%a %b %e %Y %H:%M:%S %Z", tnow); |
2312 | fprintf (tty->termscript, "\nEmacs session started at %s\n", tbuf); | |
2313 | fprintf (tty->termscript, "=====================\n\n"); | |
2314 | } | |
3e1944a3 | 2315 | |
2306a735 EZ |
2316 | Vinitial_window_system = Qpc; |
2317 | Vwindow_system_version = make_number (23); /* RE Emacs version */ | |
2318 | tty->terminal->type = output_msdos_raw; | |
039274cf | 2319 | |
2306a735 EZ |
2320 | /* If Emacs was dumped on DOS/V machine, forget the stale VRAM |
2321 | address. */ | |
2322 | screen_old_address = 0; | |
039274cf | 2323 | |
2306a735 EZ |
2324 | /* Forget the stale screen colors as well. */ |
2325 | initial_screen_colors[0] = initial_screen_colors[1] = -1; | |
2d764c78 | 2326 | |
2306a735 EZ |
2327 | FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = 7; /* White */ |
2328 | FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = 0; /* Black */ | |
2329 | bright_bg (); | |
2330 | colors = getenv ("EMACSCOLORS"); | |
2331 | if (colors && strlen (colors) >= 2) | |
2332 | { | |
2333 | /* The colors use 4 bits each (we enable bright background). */ | |
2334 | if (isdigit (colors[0])) | |
2335 | colors[0] -= '0'; | |
2336 | else if (isxdigit (colors[0])) | |
2337 | colors[0] -= (isupper (colors[0]) ? 'A' : 'a') - 10; | |
2338 | if (colors[0] >= 0 && colors[0] < 16) | |
2339 | FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = colors[0]; | |
2340 | if (isdigit (colors[1])) | |
2341 | colors[1] -= '0'; | |
2342 | else if (isxdigit (colors[1])) | |
2343 | colors[1] -= (isupper (colors[1]) ? 'A' : 'a') - 10; | |
2344 | if (colors[1] >= 0 && colors[1] < 16) | |
2345 | FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = colors[1]; | |
2346 | } | |
2347 | the_only_display_info.mouse_face_mouse_frame = NULL; | |
2348 | the_only_display_info.mouse_face_deferred_gc = 0; | |
2349 | the_only_display_info.mouse_face_beg_row = | |
2350 | the_only_display_info.mouse_face_beg_col = -1; | |
2351 | the_only_display_info.mouse_face_end_row = | |
2352 | the_only_display_info.mouse_face_end_col = -1; | |
2353 | the_only_display_info.mouse_face_face_id = DEFAULT_FACE_ID; | |
2354 | the_only_display_info.mouse_face_window = Qnil; | |
2355 | the_only_display_info.mouse_face_mouse_x = | |
2356 | the_only_display_info.mouse_face_mouse_y = 0; | |
2357 | the_only_display_info.mouse_face_defer = 0; | |
2358 | the_only_display_info.mouse_face_hidden = 0; | |
2359 | ||
2360 | if (have_mouse) /* detected in dos_ttraw, which see */ | |
2361 | { | |
2362 | have_mouse = 1; /* enable mouse */ | |
2363 | mouse_visible = 0; | |
2364 | mouse_setup_buttons (mouse_button_count); | |
2365 | tty->terminal->mouse_position_hook = &mouse_get_pos; | |
2366 | mouse_init (); | |
2367 | } | |
f32d4091 | 2368 | |
2306a735 EZ |
2369 | if (tty->termscript && screen_size) |
2370 | fprintf (tty->termscript, "<SCREEN SAVED (dimensions=%dx%d)>\n", | |
2371 | screen_size_X, screen_size_Y); | |
f32d4091 | 2372 | |
f12dae2f | 2373 | init_frame_faces (sf); |
2306a735 EZ |
2374 | init_needed = 0; |
2375 | } | |
f32d4091 KS |
2376 | #endif |
2377 | } | |
2378 | ||
3e1944a3 EZ |
2379 | void |
2380 | initialize_msdos_display (struct terminal *term) | |
2381 | { | |
2382 | term->rif = 0; /* we don't support window-based display */ | |
2383 | term->cursor_to_hook = term->raw_cursor_to_hook = IT_cursor_to; | |
2384 | term->clear_to_end_hook = IT_clear_to_end; | |
2385 | term->clear_frame_hook = IT_clear_screen; | |
2386 | term->clear_end_of_line_hook = IT_clear_end_of_line; | |
2387 | term->ins_del_lines_hook = 0; | |
2388 | term->insert_glyphs_hook = IT_insert_glyphs; | |
2389 | term->write_glyphs_hook = IT_write_glyphs; | |
2390 | term->delete_glyphs_hook = IT_delete_glyphs; | |
2391 | term->ring_bell_hook = IT_ring_bell; | |
2392 | term->reset_terminal_modes_hook = IT_reset_terminal_modes; | |
2393 | term->set_terminal_modes_hook = IT_set_terminal_modes; | |
2394 | term->set_terminal_window_hook = IT_set_terminal_window; | |
2395 | term->update_begin_hook = IT_update_begin; | |
2396 | term->update_end_hook = IT_update_end; | |
2397 | term->frame_up_to_date_hook = IT_frame_up_to_date; | |
2398 | term->mouse_position_hook = 0; /* set later by dos_ttraw */ | |
2399 | term->frame_rehighlight_hook = 0; | |
2400 | term->frame_raise_lower_hook = 0; | |
2401 | term->set_vertical_scroll_bar_hook = 0; | |
2402 | term->condemn_scroll_bars_hook = 0; | |
2403 | term->redeem_scroll_bar_hook = 0; | |
2404 | term->judge_scroll_bars_hook = 0; | |
2405 | term->read_socket_hook = &tty_read_avail_input; /* from keyboard.c */ | |
2406 | } | |
2407 | ||
3a8ce822 EZ |
2408 | int |
2409 | dos_get_saved_screen (char **screen, int *rows, int *cols) | |
f32d4091 KS |
2410 | { |
2411 | #ifndef HAVE_X_WINDOWS | |
2412 | *screen = startup_screen_buffer; | |
2413 | *cols = startup_screen_size_X; | |
2414 | *rows = startup_screen_size_Y; | |
039274cf | 2415 | return *screen != (char *)0; |
f32d4091 KS |
2416 | #else |
2417 | return 0; | |
56e19ec4 | 2418 | #endif |
f32d4091 | 2419 | } |
3bb1f22f RS |
2420 | |
2421 | #ifndef HAVE_X_WINDOWS | |
2422 | ||
2423 | /* We are not X, but we can emulate it well enough for our needs... */ | |
2424 | void | |
2425 | check_x (void) | |
2426 | { | |
2d764c78 EZ |
2427 | if (! FRAME_MSDOS_P (SELECTED_FRAME())) |
2428 | error ("Not running under a window system"); | |
3bb1f22f RS |
2429 | } |
2430 | ||
2431 | #endif | |
2432 | ||
5063b150 | 2433 | \f |
f32d4091 KS |
2434 | /* ----------------------- Keyboard control ---------------------- |
2435 | * | |
2436 | * Keymaps reflect the following keyboard layout: | |
2437 | * | |
2438 | * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS | |
2439 | * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41) | |
2440 | * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET | |
2441 | * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT | |
2442 | * SPACE | |
2443 | */ | |
2444 | ||
d1d5dc19 EZ |
2445 | #define Ignore 0x0000 |
2446 | #define Normal 0x0000 /* normal key - alt changes scan-code */ | |
2447 | #define FctKey 0x1000 /* func key if c == 0, else c */ | |
2448 | #define Special 0x2000 /* func key even if c != 0 */ | |
2449 | #define ModFct 0x3000 /* special if mod-keys, else 'c' */ | |
2450 | #define Map 0x4000 /* alt scan-code, map to unshift/shift key */ | |
2451 | #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */ | |
2452 | #define Grey 0x6000 /* Grey keypad key */ | |
2453 | ||
2454 | #define Alt 0x0100 /* alt scan-code */ | |
2455 | #define Ctrl 0x0200 /* ctrl scan-code */ | |
2456 | #define Shift 0x0400 /* shift scan-code */ | |
2457 | ||
db9cd97a | 2458 | static int extended_kbd; /* 101 (102) keyboard present. */ |
f32d4091 | 2459 | |
d1d5dc19 EZ |
2460 | struct kbd_translate { |
2461 | unsigned char sc; | |
2462 | unsigned char ch; | |
2463 | unsigned short code; | |
2464 | }; | |
2465 | ||
f32d4091 KS |
2466 | struct dos_keyboard_map |
2467 | { | |
2468 | char *unshifted; | |
2469 | char *shifted; | |
2470 | char *alt_gr; | |
d1d5dc19 | 2471 | struct kbd_translate *translate_table; |
f32d4091 KS |
2472 | }; |
2473 | ||
2474 | ||
2475 | static struct dos_keyboard_map us_keyboard = { | |
2476 | /* 0 1 2 3 4 5 */ | |
2477 | /* 01234567890123456789012345678901234567890 12345678901234 */ | |
2478 | "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ", | |
2479 | /* 0123456789012345678901234567890123456789 012345678901234 */ | |
2480 | "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ", | |
d1d5dc19 EZ |
2481 | 0, /* no Alt-Gr key */ |
2482 | 0 /* no translate table */ | |
f32d4091 KS |
2483 | }; |
2484 | ||
2485 | static struct dos_keyboard_map fr_keyboard = { | |
2486 | /* 0 1 2 3 4 5 */ | |
2487 | /* 012 3456789012345678901234567890123456789012345678901234 */ | |
2488 |