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c6a6499f | 1 | /* MS-DOS specific C utilities. -*- coding: raw-text -*- |
68c45bf0 | 2 | Copyright (C) 1993, 94, 95, 96, 97, 1999 Free Software Foundation, Inc. |
1b94449f RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
edfc0d45 | 8 | the Free Software Foundation; either version 2, or (at your option) |
1b94449f RS |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
1b94449f | 20 | |
9da6e765 | 21 | /* Contributed by Morten Welinder */ |
f32d4091 | 22 | /* New display, keyboard, and mouse control by Kim F. Storm */ |
9da6e765 | 23 | |
1b94449f RS |
24 | /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */ |
25 | ||
48984716 | 26 | #include <config.h> |
1b94449f RS |
27 | |
28 | #ifdef MSDOS | |
29 | #include "lisp.h" | |
30 | #include <stdio.h> | |
31 | #include <stdlib.h> | |
06b1ea13 | 32 | #include <time.h> |
1b94449f RS |
33 | #include <sys/param.h> |
34 | #include <sys/time.h> | |
35 | #include <dos.h> | |
d21e67b5 | 36 | #include <errno.h> |
a7cf9151 | 37 | #include <string.h> /* for bzero and string functions */ |
d21e67b5 | 38 | #include <sys/stat.h> /* for _fixpath */ |
a7cf9151 | 39 | #include <unistd.h> /* for chdir, dup, dup2, etc. */ |
1bd7b2c7 RS |
40 | #if __DJGPP__ >= 2 |
41 | #include <fcntl.h> | |
a7cf9151 | 42 | #include <io.h> /* for setmode */ |
fc171623 KH |
43 | #include <dpmi.h> /* for __dpmi_xxx stuff */ |
44 | #include <sys/farptr.h> /* for _farsetsel, _farnspokeb */ | |
d21e67b5 | 45 | #include <libc/dosio.h> /* for _USE_LFN */ |
a7cf9151 | 46 | #include <conio.h> /* for cputs */ |
1bd7b2c7 RS |
47 | #endif |
48 | ||
1b94449f RS |
49 | #include "msdos.h" |
50 | #include "systime.h" | |
51 | #include "termhooks.h" | |
aa9ce936 | 52 | #include "termchar.h" |
87485d6f | 53 | #include "dispextern.h" |
c77f6f1b | 54 | #include "dosfns.h" |
87485d6f | 55 | #include "termopts.h" |
aa9ce936 EZ |
56 | #include "charset.h" |
57 | #include "coding.h" | |
58 | #include "disptab.h" | |
1b94449f | 59 | #include "frame.h" |
87485d6f | 60 | #include "window.h" |
fc171623 KH |
61 | #include "buffer.h" |
62 | #include "commands.h" | |
41ad069b | 63 | #include "blockinput.h" |
1b94449f RS |
64 | #include <go32.h> |
65 | #include <pc.h> | |
66 | #include <ctype.h> | |
67 | /* #include <process.h> */ | |
68 | /* Damn that local process.h! Instead we can define P_WAIT ourselves. */ | |
69 | #define P_WAIT 1 | |
70 | ||
d21e67b5 RS |
71 | #ifndef _USE_LFN |
72 | #define _USE_LFN 0 | |
73 | #endif | |
74 | ||
b36701cc RS |
75 | #ifndef _dos_ds |
76 | #define _dos_ds _go32_info_block.selector_for_linear_memory | |
77 | #endif | |
78 | ||
1bd7b2c7 RS |
79 | #if __DJGPP__ > 1 |
80 | ||
8748735b | 81 | #include <signal.h> |
417a04bb | 82 | #include "syssignal.h" |
8748735b | 83 | |
1bd7b2c7 RS |
84 | #ifndef SYSTEM_MALLOC |
85 | ||
86 | #ifdef GNU_MALLOC | |
87 | ||
88 | /* If other `malloc' than ours is used, force our `sbrk' behave like | |
89 | Unix programs expect (resize memory blocks to keep them contiguous). | |
90 | If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory, | |
91 | because that's what `gmalloc' expects to get. */ | |
92 | #include <crt0.h> | |
93 | ||
94 | #ifdef REL_ALLOC | |
95 | int _crt0_startup_flags = _CRT0_FLAG_UNIX_SBRK; | |
96 | #else /* not REL_ALLOC */ | |
97 | int _crt0_startup_flags = (_CRT0_FLAG_UNIX_SBRK | _CRT0_FLAG_FILL_SBRK_MEMORY); | |
98 | #endif /* not REL_ALLOC */ | |
99 | #endif /* GNU_MALLOC */ | |
100 | ||
101 | #endif /* not SYSTEM_MALLOC */ | |
102 | #endif /* __DJGPP__ > 1 */ | |
aee81730 RS |
103 | |
104 | static unsigned long | |
105 | event_timestamp () | |
106 | { | |
107 | struct time t; | |
108 | unsigned long s; | |
f32d4091 | 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; | |
f32d4091 | 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 | |
f32d4091 KS |
127 | int have_mouse; /* 0: no, 1: enabled, -1: disabled */ |
128 | static int mouse_visible; | |
1b94449f | 129 | |
f32d4091 KS |
130 | static int mouse_last_x; |
131 | static int mouse_last_y; | |
1b94449f | 132 | |
f32d4091 KS |
133 | static int mouse_button_translate[NUM_MOUSE_BUTTONS]; |
134 | static int mouse_button_count; | |
1b94449f | 135 | |
f32d4091 KS |
136 | void |
137 | mouse_on () | |
1b94449f | 138 | { |
1b94449f | 139 | union REGS regs; |
1b94449f | 140 | |
f32d4091 | 141 | if (have_mouse > 0 && !mouse_visible) |
1b94449f | 142 | { |
f32d4091 KS |
143 | if (termscript) |
144 | fprintf (termscript, "<M_ON>"); | |
145 | regs.x.ax = 0x0001; | |
146 | int86 (0x33, ®s, ®s); | |
147 | mouse_visible = 1; | |
1b94449f | 148 | } |
1b94449f RS |
149 | } |
150 | ||
f32d4091 KS |
151 | void |
152 | mouse_off () | |
1b94449f | 153 | { |
f32d4091 | 154 | union REGS regs; |
1b94449f | 155 | |
f32d4091 | 156 | if (have_mouse > 0 && mouse_visible) |
1b94449f | 157 | { |
f32d4091 KS |
158 | if (termscript) |
159 | fprintf (termscript, "<M_OFF>"); | |
160 | regs.x.ax = 0x0002; | |
161 | int86 (0x33, ®s, ®s); | |
162 | mouse_visible = 0; | |
1b94449f | 163 | } |
1b94449f RS |
164 | } |
165 | ||
211c7152 EZ |
166 | static void |
167 | mouse_get_xy (int *x, int *y) | |
168 | { | |
169 | union REGS regs; | |
170 | ||
171 | regs.x.ax = 0x0003; | |
172 | int86 (0x33, ®s, ®s); | |
173 | *x = regs.x.cx / 8; | |
174 | *y = regs.x.dx / 8; | |
175 | } | |
176 | ||
f32d4091 KS |
177 | void |
178 | mouse_moveto (x, y) | |
179 | int x, y; | |
1b94449f | 180 | { |
f32d4091 | 181 | union REGS regs; |
1b94449f | 182 | |
f32d4091 KS |
183 | if (termscript) |
184 | fprintf (termscript, "<M_XY=%dx%d>", x, y); | |
185 | regs.x.ax = 0x0004; | |
186 | mouse_last_x = regs.x.cx = x * 8; | |
187 | mouse_last_y = regs.x.dx = y * 8; | |
188 | int86 (0x33, ®s, ®s); | |
1b94449f RS |
189 | } |
190 | ||
f32d4091 KS |
191 | static int |
192 | mouse_pressed (b, xp, yp) | |
193 | int b, *xp, *yp; | |
1b94449f | 194 | { |
f32d4091 | 195 | union REGS regs; |
1b94449f | 196 | |
f32d4091 KS |
197 | if (b >= mouse_button_count) |
198 | return 0; | |
199 | regs.x.ax = 0x0005; | |
200 | regs.x.bx = mouse_button_translate[b]; | |
201 | int86 (0x33, ®s, ®s); | |
202 | if (regs.x.bx) | |
203 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
204 | return (regs.x.bx != 0); | |
1b94449f RS |
205 | } |
206 | ||
f32d4091 KS |
207 | static int |
208 | mouse_released (b, xp, yp) | |
209 | int b, *xp, *yp; | |
1b94449f RS |
210 | { |
211 | union REGS regs; | |
212 | ||
f32d4091 KS |
213 | if (b >= mouse_button_count) |
214 | return 0; | |
215 | regs.x.ax = 0x0006; | |
216 | regs.x.bx = mouse_button_translate[b]; | |
217 | int86 (0x33, ®s, ®s); | |
218 | if (regs.x.bx) | |
219 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
220 | return (regs.x.bx != 0); | |
1b94449f RS |
221 | } |
222 | ||
0c7bc1aa EZ |
223 | static int |
224 | mouse_button_depressed (b, xp, yp) | |
225 | int b, *xp, *yp; | |
226 | { | |
227 | union REGS regs; | |
228 | ||
229 | if (b >= mouse_button_count) | |
230 | return 0; | |
231 | regs.x.ax = 0x0003; | |
232 | int86 (0x33, ®s, ®s); | |
233 | if ((regs.x.bx & (1 << mouse_button_translate[b])) != 0) | |
234 | { | |
235 | *xp = regs.x.cx / 8; | |
236 | *yp = regs.x.dx / 8; | |
237 | return 1; | |
238 | } | |
239 | return 0; | |
240 | } | |
241 | ||
f32d4091 KS |
242 | void |
243 | mouse_get_pos (f, insist, bar_window, part, x, y, time) | |
244 | FRAME_PTR *f; | |
245 | int insist; | |
246 | Lisp_Object *bar_window, *x, *y; | |
247 | enum scroll_bar_part *part; | |
248 | unsigned long *time; | |
249 | { | |
250 | int ix, iy; | |
211c7152 EZ |
251 | Lisp_Object frame, tail; |
252 | ||
253 | /* Clear the mouse-moved flag for every frame on this display. */ | |
254 | FOR_EACH_FRAME (tail, frame) | |
255 | XFRAME (frame)->mouse_moved = 0; | |
f32d4091 | 256 | |
2d764c78 | 257 | *f = SELECTED_FRAME(); |
f32d4091 KS |
258 | *bar_window = Qnil; |
259 | mouse_get_xy (&ix, &iy); | |
f32d4091 | 260 | *time = event_timestamp (); |
211c7152 EZ |
261 | *x = make_number (mouse_last_x = ix); |
262 | *y = make_number (mouse_last_y = iy); | |
f32d4091 | 263 | } |
1b94449f | 264 | |
f32d4091 KS |
265 | static void |
266 | mouse_check_moved () | |
1b94449f | 267 | { |
aee81730 | 268 | int x, y; |
1b94449f | 269 | |
f32d4091 | 270 | mouse_get_xy (&x, &y); |
2d764c78 | 271 | SELECTED_FRAME()->mouse_moved |= (x != mouse_last_x || y != mouse_last_y); |
f32d4091 KS |
272 | mouse_last_x = x; |
273 | mouse_last_y = y; | |
274 | } | |
1b94449f | 275 | |
f32d4091 KS |
276 | void |
277 | mouse_init () | |
278 | { | |
279 | union REGS regs; | |
0c7bc1aa | 280 | int b; |
647c32eb | 281 | |
f32d4091 KS |
282 | if (termscript) |
283 | fprintf (termscript, "<M_INIT>"); | |
1b94449f | 284 | |
f32d4091 KS |
285 | regs.x.ax = 0x0021; |
286 | int86 (0x33, ®s, ®s); | |
091d0bdf | 287 | |
0c7bc1aa EZ |
288 | /* Reset the mouse last press/release info. It seems that Windows |
289 | doesn't do that automatically when function 21h is called, which | |
290 | causes Emacs to ``remember'' the click that switched focus to the | |
291 | window just before Emacs was started from that window. */ | |
292 | for (b = 0; b < mouse_button_count; b++) | |
293 | { | |
294 | int dummy_x, dummy_y; | |
295 | ||
296 | (void) mouse_pressed (b, &dummy_x, &dummy_y); | |
297 | (void) mouse_released (b, &dummy_x, &dummy_y); | |
298 | } | |
299 | ||
f32d4091 KS |
300 | regs.x.ax = 0x0007; |
301 | regs.x.cx = 0; | |
302 | regs.x.dx = 8 * (ScreenCols () - 1); | |
303 | int86 (0x33, ®s, ®s); | |
1b94449f | 304 | |
f32d4091 KS |
305 | regs.x.ax = 0x0008; |
306 | regs.x.cx = 0; | |
307 | regs.x.dx = 8 * (ScreenRows () - 1); | |
308 | int86 (0x33, ®s, ®s); | |
1b94449f | 309 | |
f32d4091 KS |
310 | mouse_moveto (0, 0); |
311 | mouse_visible = 0; | |
312 | } | |
3eb1dbb6 | 313 | \f |
f32d4091 KS |
314 | /* ------------------------- Screen control ---------------------- |
315 | * | |
316 | */ | |
aee81730 | 317 | |
f32d4091 | 318 | static int internal_terminal = 0; |
aee81730 | 319 | |
f32d4091 KS |
320 | #ifndef HAVE_X_WINDOWS |
321 | extern unsigned char ScreenAttrib; | |
322 | static int screen_face; | |
323 | static int highlight; | |
aee81730 | 324 | |
f32d4091 KS |
325 | static int screen_size_X; |
326 | static int screen_size_Y; | |
327 | static int screen_size; | |
1b94449f | 328 | |
f32d4091 KS |
329 | static int current_pos_X; |
330 | static int current_pos_Y; | |
331 | static int new_pos_X; | |
332 | static int new_pos_Y; | |
1b94449f | 333 | |
f32d4091 KS |
334 | static void *startup_screen_buffer; |
335 | static int startup_screen_size_X; | |
336 | static int startup_screen_size_Y; | |
337 | static int startup_pos_X; | |
338 | static int startup_pos_Y; | |
c9adab25 | 339 | static unsigned char startup_screen_attrib; |
1b94449f | 340 | |
06b1ea13 EZ |
341 | static clock_t startup_time; |
342 | ||
f32d4091 | 343 | static int term_setup_done; |
1b94449f | 344 | |
f32d4091 | 345 | /* Similar to the_only_frame. */ |
f6816f88 | 346 | struct x_output the_only_x_display; |
1b94449f | 347 | |
039274cf EZ |
348 | /* Support for DOS/V (allows Japanese characters to be displayed on |
349 | standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */ | |
350 | ||
351 | /* Holds the address of the text-mode screen buffer. */ | |
352 | static unsigned long screen_old_address = 0; | |
353 | /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */ | |
354 | static unsigned short screen_virtual_segment = 0; | |
355 | static unsigned short screen_virtual_offset = 0; | |
68026917 AI |
356 | /* A flag to control how to display unibyte 8-bit characters. */ |
357 | extern int unibyte_display_via_language_environment; | |
039274cf EZ |
358 | |
359 | #if __DJGPP__ > 1 | |
360 | /* Update the screen from a part of relocated DOS/V screen buffer which | |
361 | begins at OFFSET and includes COUNT characters. */ | |
362 | static void | |
363 | dosv_refresh_virtual_screen (int offset, int count) | |
364 | { | |
365 | __dpmi_regs regs; | |
366 | ||
40437cf5 EZ |
367 | if (offset < 0 || count < 0) /* paranoia; illegal values crash DOS/V */ |
368 | return; | |
369 | ||
039274cf EZ |
370 | regs.h.ah = 0xff; /* update relocated screen */ |
371 | regs.x.es = screen_virtual_segment; | |
372 | regs.x.di = screen_virtual_offset + offset; | |
373 | regs.x.cx = count; | |
374 | __dpmi_int (0x10, ®s); | |
375 | } | |
376 | #endif | |
377 | ||
d1d5dc19 | 378 | static void |
f32d4091 KS |
379 | dos_direct_output (y, x, buf, len) |
380 | int y; | |
381 | int x; | |
382 | char *buf; | |
383 | int len; | |
1b94449f | 384 | { |
40437cf5 EZ |
385 | int t0 = 2 * (x + y * screen_size_X); |
386 | int t = t0 + (int) ScreenPrimary; | |
039274cf | 387 | int l0 = len; |
fc171623 KH |
388 | |
389 | #if (__DJGPP__ < 2) | |
f32d4091 KS |
390 | while (--len >= 0) { |
391 | dosmemput (buf++, 1, t); | |
392 | t += 2; | |
393 | } | |
fc171623 KH |
394 | #else |
395 | /* This is faster. */ | |
396 | for (_farsetsel (_dos_ds); --len >= 0; t += 2, buf++) | |
397 | _farnspokeb (t, *buf); | |
039274cf EZ |
398 | |
399 | if (screen_virtual_segment) | |
400 | dosv_refresh_virtual_screen (t0, l0); | |
fc171623 | 401 | #endif |
1b94449f | 402 | } |
aee81730 | 403 | #endif |
1b94449f | 404 | |
1b94449f RS |
405 | /* Flash the screen as a substitute for BEEPs. */ |
406 | ||
f32d4091 | 407 | #if (__DJGPP__ < 2) |
49a09c76 | 408 | static void |
fcea9cd4 | 409 | do_visible_bell (xorattr) |
1b94449f RS |
410 | unsigned char xorattr; |
411 | { | |
49a09c76 | 412 | asm volatile |
ca986694 | 413 | (" movb $1,%%dl |
1b94449f | 414 | visible_bell_0: |
ca986694 | 415 | movl _ScreenPrimary,%%eax |
49a09c76 | 416 | call dosmemsetup |
ca986694 RS |
417 | movl %%eax,%%ebx |
418 | movl %1,%%ecx | |
419 | movb %0,%%al | |
420 | incl %%ebx | |
1b94449f | 421 | visible_bell_1: |
ca986694 RS |
422 | xorb %%al,%%gs:(%%ebx) |
423 | addl $2,%%ebx | |
424 | decl %%ecx | |
49a09c76 | 425 | jne visible_bell_1 |
ca986694 | 426 | decb %%dl |
49a09c76 | 427 | jne visible_bell_3 |
1b94449f | 428 | visible_bell_2: |
ca986694 RS |
429 | movzwl %%ax,%%eax |
430 | movzwl %%ax,%%eax | |
431 | movzwl %%ax,%%eax | |
432 | movzwl %%ax,%%eax | |
433 | decw %%cx | |
49a09c76 RS |
434 | jne visible_bell_2 |
435 | jmp visible_bell_0 | |
ca986694 RS |
436 | visible_bell_3:" |
437 | : /* no output */ | |
f32d4091 | 438 | : "m" (xorattr), "g" (screen_size) |
ca986694 | 439 | : "%eax", "%ebx", /* "%gs",*/ "%ecx", "%edx"); |
1b94449f RS |
440 | } |
441 | ||
f32d4091 KS |
442 | static void |
443 | ScreenVisualBell (void) | |
444 | { | |
445 | /* This creates an xor-mask that will swap the default fore- and | |
446 | background colors. */ | |
447 | do_visible_bell (((the_only_x_display.foreground_pixel | |
448 | ^ the_only_x_display.background_pixel) | |
449 | * 0x11) & 0x7f); | |
450 | } | |
451 | #endif | |
452 | ||
453 | #ifndef HAVE_X_WINDOWS | |
454 | ||
b36701cc RS |
455 | static int blink_bit = -1; /* the state of the blink bit at startup */ |
456 | ||
76ac1508 RS |
457 | /* Enable bright background colors. */ |
458 | static void | |
459 | bright_bg (void) | |
460 | { | |
461 | union REGS regs; | |
462 | ||
b36701cc RS |
463 | /* Remember the original state of the blink/bright-background bit. |
464 | It is stored at 0040:0065h in the BIOS data area. */ | |
465 | if (blink_bit == -1) | |
466 | blink_bit = (_farpeekb (_dos_ds, 0x465) & 0x20) == 0x20; | |
467 | ||
76ac1508 RS |
468 | regs.h.bl = 0; |
469 | regs.x.ax = 0x1003; | |
470 | int86 (0x10, ®s, ®s); | |
471 | } | |
472 | ||
b36701cc RS |
473 | /* Disable bright background colors (and enable blinking) if we found |
474 | the video system in that state at startup. */ | |
475 | static void | |
476 | maybe_enable_blinking (void) | |
477 | { | |
478 | if (blink_bit == 1) | |
479 | { | |
480 | union REGS regs; | |
481 | ||
482 | regs.h.bl = 1; | |
483 | regs.x.ax = 0x1003; | |
484 | int86 (0x10, ®s, ®s); | |
485 | } | |
486 | } | |
487 | ||
4a96d4d2 KH |
488 | /* Set the screen dimensions so that it can show no less than |
489 | ROWS x COLS frame. */ | |
48ffe371 | 490 | |
4a96d4d2 KH |
491 | void |
492 | dos_set_window_size (rows, cols) | |
493 | int *rows, *cols; | |
494 | { | |
495 | char video_name[30]; | |
496 | Lisp_Object video_mode; | |
497 | int video_mode_value; | |
498 | int have_vga = 0; | |
499 | union REGS regs; | |
500 | int current_rows = ScreenRows (), current_cols = ScreenCols (); | |
501 | ||
502 | if (*rows == current_rows && *cols == current_cols) | |
503 | return; | |
504 | ||
505 | /* Do we have a VGA? */ | |
506 | regs.x.ax = 0x1a00; | |
507 | int86 (0x10, ®s, ®s); | |
508 | if (regs.h.al == 0x1a && regs.h.bl > 5 && regs.h.bl < 13) | |
509 | have_vga = 1; | |
510 | ||
511 | mouse_off (); | |
512 | ||
48ffe371 | 513 | /* If the user specified a special video mode for these dimensions, |
4a96d4d2 KH |
514 | use that mode. */ |
515 | sprintf (video_name, "screen-dimensions-%dx%d", *rows, *cols); | |
516 | video_mode = XSYMBOL (Fintern_soft (build_string (video_name), | |
517 | Qnil))-> value; | |
518 | ||
519 | if (INTEGERP (video_mode) | |
520 | && (video_mode_value = XINT (video_mode)) > 0) | |
521 | { | |
522 | regs.x.ax = video_mode_value; | |
523 | int86 (0x10, ®s, ®s); | |
48ffe371 RS |
524 | |
525 | if (have_mouse) | |
526 | { | |
527 | /* Must hardware-reset the mouse, or else it won't update | |
528 | its notion of screen dimensions for some non-standard | |
529 | video modes. This is *painfully* slow... */ | |
530 | regs.x.ax = 0; | |
531 | int86 (0x33, ®s, ®s); | |
532 | } | |
4a96d4d2 KH |
533 | } |
534 | ||
535 | /* Find one of the dimensions supported by standard EGA/VGA | |
536 | which gives us at least the required dimensions. */ | |
537 | ||
538 | #if __DJGPP__ > 1 | |
539 | ||
540 | else | |
541 | { | |
542 | static struct { | |
543 | int rows; | |
544 | int need_vga; | |
545 | } std_dimension[] = { | |
546 | {25, 0}, | |
547 | {28, 1}, | |
548 | {35, 0}, | |
549 | {40, 1}, | |
550 | {43, 0}, | |
551 | {50, 1} | |
552 | }; | |
553 | int i = 0; | |
554 | ||
555 | while (i < sizeof (std_dimension) / sizeof (std_dimension[0])) | |
556 | { | |
557 | if (std_dimension[i].need_vga <= have_vga | |
558 | && std_dimension[i].rows >= *rows) | |
559 | { | |
560 | if (std_dimension[i].rows != current_rows | |
561 | || *cols != current_cols) | |
48ffe371 | 562 | _set_screen_lines (std_dimension[i].rows); |
4a96d4d2 KH |
563 | break; |
564 | } | |
48ffe371 | 565 | i++; |
4a96d4d2 KH |
566 | } |
567 | } | |
568 | ||
569 | #else /* not __DJGPP__ > 1 */ | |
570 | ||
571 | else if (*rows <= 25) | |
572 | { | |
573 | if (current_rows != 25 || current_cols != 80) | |
574 | { | |
575 | regs.x.ax = 3; | |
576 | int86 (0x10, ®s, ®s); | |
577 | regs.x.ax = 0x1101; | |
578 | regs.h.bl = 0; | |
579 | int86 (0x10, ®s, ®s); | |
580 | regs.x.ax = 0x1200; | |
581 | regs.h.bl = 32; | |
582 | int86 (0x10, ®s, ®s); | |
583 | regs.x.ax = 3; | |
584 | int86 (0x10, ®s, ®s); | |
585 | } | |
586 | } | |
587 | else if (*rows <= 50) | |
588 | if (have_vga && (current_rows != 50 || current_cols != 80) | |
589 | || *rows <= 43 && (current_rows != 43 || current_cols != 80)) | |
590 | { | |
591 | regs.x.ax = 3; | |
592 | int86 (0x10, ®s, ®s); | |
593 | regs.x.ax = 0x1112; | |
594 | regs.h.bl = 0; | |
595 | int86 (0x10, ®s, ®s); | |
596 | regs.x.ax = 0x1200; | |
597 | regs.h.bl = 32; | |
598 | int86 (0x10, ®s, ®s); | |
599 | regs.x.ax = 0x0100; | |
600 | regs.x.cx = 7; | |
601 | int86 (0x10, ®s, ®s); | |
602 | } | |
603 | #endif /* not __DJGPP__ > 1 */ | |
604 | ||
605 | if (have_mouse) | |
606 | { | |
4a96d4d2 KH |
607 | mouse_init (); |
608 | mouse_on (); | |
609 | } | |
610 | ||
611 | /* Tell the caller what dimensions have been REALLY set. */ | |
612 | *rows = ScreenRows (); | |
613 | *cols = ScreenCols (); | |
76ac1508 | 614 | |
41ad069b EZ |
615 | #if __DJGPP__ > 1 |
616 | /* If the dimensions changed, the mouse highlight info is invalid. */ | |
617 | if (current_rows != *rows || current_cols != *cols) | |
618 | { | |
619 | struct frame *f = SELECTED_FRAME(); | |
620 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
621 | Lisp_Object window = dpyinfo->mouse_face_window; | |
622 | ||
623 | if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f) | |
624 | { | |
625 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
626 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
627 | dpyinfo->mouse_face_window = Qnil; | |
628 | } | |
629 | } | |
630 | #endif | |
631 | ||
76ac1508 RS |
632 | /* Enable bright background colors. */ |
633 | bright_bg (); | |
039274cf EZ |
634 | |
635 | /* FIXME: I'm not sure the above will run at all on DOS/V. But let's | |
636 | be defensive anyway. */ | |
637 | if (screen_virtual_segment) | |
638 | dosv_refresh_virtual_screen (0, *cols * *rows); | |
4a96d4d2 KH |
639 | } |
640 | ||
48ffe371 RS |
641 | /* If we write a character in the position where the mouse is, |
642 | the mouse cursor may need to be refreshed. */ | |
09e2ac30 RS |
643 | |
644 | static void | |
f32d4091 | 645 | mouse_off_maybe () |
09e2ac30 | 646 | { |
f32d4091 KS |
647 | int x, y; |
648 | ||
649 | if (!mouse_visible) | |
650 | return; | |
651 | ||
652 | mouse_get_xy (&x, &y); | |
653 | if (y != new_pos_Y || x < new_pos_X) | |
654 | return; | |
655 | ||
656 | mouse_off (); | |
657 | } | |
658 | ||
71f65669 EZ |
659 | static void |
660 | IT_ring_bell (void) | |
f32d4091 KS |
661 | { |
662 | if (visible_bell) | |
aee81730 | 663 | { |
f32d4091 KS |
664 | mouse_off (); |
665 | ScreenVisualBell (); | |
aee81730 | 666 | } |
f32d4091 | 667 | else |
3635be47 RS |
668 | { |
669 | union REGS inregs, outregs; | |
670 | inregs.h.ah = 2; | |
671 | inregs.h.dl = 7; | |
672 | intdos (&inregs, &outregs); | |
673 | } | |
09e2ac30 RS |
674 | } |
675 | ||
c77f6f1b EZ |
676 | /* Given a face id FACE, extract the face parameters to be used for |
677 | display until the face changes. The face parameters (actually, its | |
678 | color) are used to construct the video attribute byte for each | |
679 | glyph during the construction of the buffer that is then blitted to | |
680 | the video RAM. */ | |
f32d4091 KS |
681 | static void |
682 | IT_set_face (int face) | |
683 | { | |
2d764c78 EZ |
684 | struct frame *sf = SELECTED_FRAME(); |
685 | struct face *fp = FACE_FROM_ID (sf, face); | |
c77f6f1b | 686 | unsigned long fg, bg; |
f32d4091 | 687 | |
c77f6f1b | 688 | if (!fp) |
e30aee93 | 689 | { |
2d764c78 | 690 | fp = FACE_FROM_ID (sf, DEFAULT_FACE_ID); |
e30aee93 EZ |
691 | /* The default face for the frame should always be realized and |
692 | cached. */ | |
693 | if (!fp) | |
694 | abort (); | |
695 | } | |
f32d4091 | 696 | screen_face = face; |
c77f6f1b EZ |
697 | fg = fp->foreground; |
698 | bg = fp->background; | |
699 | ||
3b620731 EZ |
700 | /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* |
701 | colors mean use the colors of the default face, except that if | |
702 | highlight is on, invert the foreground and the background. Note | |
703 | that we assume all 16 colors to be available for the background, | |
704 | since Emacs switches on this mode (and loses the blinking | |
705 | attribute) at startup. */ | |
f9d2fdc4 | 706 | if (fg == FACE_TTY_DEFAULT_COLOR || fg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 | 707 | fg = FRAME_FOREGROUND_PIXEL (sf); |
f9d2fdc4 | 708 | else if (fg == FACE_TTY_DEFAULT_BG_COLOR) |
3b620731 EZ |
709 | fg = FRAME_BACKGROUND_PIXEL (sf); |
710 | if (bg == FACE_TTY_DEFAULT_COLOR || bg == FACE_TTY_DEFAULT_BG_COLOR) | |
711 | bg = FRAME_BACKGROUND_PIXEL (sf); | |
f9d2fdc4 | 712 | else if (bg == FACE_TTY_DEFAULT_FG_COLOR) |
3b620731 EZ |
713 | bg = FRAME_FOREGROUND_PIXEL (sf); |
714 | ||
715 | /* Make sure highlighted lines really stand out, come what may. */ | |
716 | if ((highlight || fp->tty_reverse_p) | |
717 | && (fg == FRAME_FOREGROUND_PIXEL (sf) | |
718 | && bg == FRAME_BACKGROUND_PIXEL (sf))) | |
719 | { | |
720 | unsigned long tem = fg; | |
721 | ||
722 | fg = bg; | |
723 | bg = tem; | |
724 | } | |
c77f6f1b | 725 | if (termscript) |
3b620731 EZ |
726 | fprintf (termscript, "<FACE %d%s: %d/%d[FG:%d/BG:%d]>", face, |
727 | highlight ? "H" : "", fp->foreground, fp->background, fg, bg); | |
c77f6f1b EZ |
728 | if (fg >= 0 && fg < 16) |
729 | { | |
730 | ScreenAttrib &= 0xf0; | |
731 | ScreenAttrib |= fg; | |
732 | } | |
733 | if (bg >= 0 && bg < 16) | |
734 | { | |
735 | ScreenAttrib &= 0x0f; | |
736 | ScreenAttrib |= ((bg & 0x0f) << 4); | |
737 | } | |
f32d4091 KS |
738 | } |
739 | ||
aa9ce936 EZ |
740 | Lisp_Object Vdos_unsupported_char_glyph; |
741 | ||
71f65669 | 742 | static void |
c77f6f1b | 743 | IT_write_glyphs (struct glyph *str, int str_len) |
f32d4091 | 744 | { |
aa9ce936 EZ |
745 | unsigned char *screen_buf, *screen_bp, *screen_buf_end, *bp; |
746 | int unsupported_face = FAST_GLYPH_FACE (Vdos_unsupported_char_glyph); | |
747 | unsigned unsupported_char= FAST_GLYPH_CHAR (Vdos_unsupported_char_glyph); | |
039274cf | 748 | int offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 EZ |
749 | register int sl = str_len; |
750 | register int tlen = GLYPH_TABLE_LENGTH; | |
751 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
752 | ||
e16bf494 AI |
753 | struct coding_system *coding = (CODING_REQUIRE_ENCODING (&terminal_coding) |
754 | ? &terminal_coding | |
755 | : &safe_terminal_coding); | |
2d764c78 | 756 | struct frame *sf; |
87485d6f | 757 | |
52d38ab2 EZ |
758 | /* Do we need to consider conversion of unibyte characters to |
759 | multibyte? */ | |
760 | int convert_unibyte_characters | |
e16bf494 AI |
761 | = (NILP (current_buffer->enable_multibyte_characters) |
762 | && unibyte_display_via_language_environment); | |
52d38ab2 | 763 | |
3b620731 | 764 | if (str_len <= 0) return; |
aee81730 | 765 | |
aa9ce936 EZ |
766 | screen_buf = screen_bp = alloca (str_len * 2); |
767 | screen_buf_end = screen_buf + str_len * 2; | |
2d764c78 | 768 | sf = SELECTED_FRAME(); |
e30aee93 EZ |
769 | |
770 | /* Since faces get cached and uncached behind our back, we can't | |
771 | rely on their indices in the cache being consistent across | |
772 | invocations. So always reset the screen face to the default | |
773 | face of the frame, before writing glyphs, and let the glyphs | |
774 | set the right face if it's different from the default. */ | |
775 | IT_set_face (DEFAULT_FACE_ID); | |
aee81730 | 776 | |
aa9ce936 EZ |
777 | /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at |
778 | the tail. */ | |
779 | terminal_coding.mode &= ~CODING_MODE_LAST_BLOCK; | |
780 | while (sl) | |
781 | { | |
c77f6f1b | 782 | int cf, chlen, enclen; |
3b620731 | 783 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *buf; |
c77f6f1b | 784 | unsigned ch; |
aa9ce936 EZ |
785 | |
786 | /* Glyphs with GLYPH_MASK_PADDING bit set are actually there | |
787 | only for the redisplay code to know how many columns does | |
788 | this character occupy on the screen. Skip padding glyphs. */ | |
c77f6f1b | 789 | if (CHAR_GLYPH_PADDING_P (*str)) |
aa9ce936 EZ |
790 | { |
791 | str++; | |
792 | sl--; | |
793 | } | |
794 | else | |
795 | { | |
04ee4f45 EZ |
796 | register GLYPH g = GLYPH_FROM_CHAR_GLYPH (*str); |
797 | int glyph_not_in_table = 0; | |
798 | ||
799 | if (g < 0 || g >= tlen) | |
800 | { | |
801 | /* This glyph doesn't have an entry in Vglyph_table. */ | |
802 | ch = str->u.ch; | |
803 | glyph_not_in_table = 1; | |
804 | } | |
805 | else | |
806 | { | |
807 | /* This glyph has an entry in Vglyph_table, so process | |
808 | any aliases before testing for simpleness. */ | |
809 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); | |
810 | ch = FAST_GLYPH_CHAR (g); | |
811 | } | |
812 | ||
aa9ce936 | 813 | /* Convert the character code to multibyte, if they |
04ee4f45 EZ |
814 | requested display via language environment. We only want |
815 | to convert unibyte characters to multibyte in unibyte | |
816 | buffers! Otherwise, the 8-bit value in CH came from the | |
817 | display table set up to display foreign characters. */ | |
52d38ab2 | 818 | if (SINGLE_BYTE_CHAR_P (ch) && convert_unibyte_characters |
f0dd4c35 EZ |
819 | && (ch >= 0240 |
820 | || (ch >= 0200 && !NILP (Vnonascii_translation_table)))) | |
aa9ce936 EZ |
821 | ch = unibyte_char_to_multibyte (ch); |
822 | ||
823 | /* Invalid characters are displayed with a special glyph. */ | |
04ee4f45 | 824 | if (! CHAR_VALID_P (ch, 0)) |
aa9ce936 EZ |
825 | { |
826 | g = !NILP (Vdos_unsupported_char_glyph) | |
827 | ? Vdos_unsupported_char_glyph | |
2d764c78 | 828 | : MAKE_GLYPH (sf, '\177', GLYPH_FACE (sf, g)); |
aa9ce936 EZ |
829 | ch = FAST_GLYPH_CHAR (g); |
830 | } | |
aa9ce936 EZ |
831 | |
832 | /* If the face of this glyph is different from the current | |
833 | screen face, update the screen attribute byte. */ | |
834 | cf = FAST_GLYPH_FACE (g); | |
835 | if (cf != screen_face) | |
836 | IT_set_face (cf); /* handles invalid faces gracefully */ | |
837 | ||
04ee4f45 | 838 | if (glyph_not_in_table || GLYPH_SIMPLE_P (tbase, tlen, g)) |
3b620731 EZ |
839 | { |
840 | /* We generate the multi-byte form of CH in WORKBUF. */ | |
841 | chlen = CHAR_STRING (ch, workbuf); | |
842 | buf = workbuf; | |
843 | } | |
aa9ce936 EZ |
844 | else |
845 | { | |
846 | /* We have a string in Vglyph_table. */ | |
847 | chlen = GLYPH_LENGTH (tbase, g); | |
848 | buf = GLYPH_STRING (tbase, g); | |
849 | } | |
850 | ||
c77f6f1b | 851 | /* If the character is not multibyte, don't bother converting it. */ |
aa9ce936 EZ |
852 | if (chlen == 1) |
853 | { | |
854 | *conversion_buffer = (unsigned char)ch; | |
855 | chlen = 0; | |
856 | enclen = 1; | |
857 | } | |
858 | else | |
859 | { | |
860 | encode_coding (coding, buf, conversion_buffer, chlen, | |
861 | conversion_buffer_size); | |
862 | chlen -= coding->consumed; | |
863 | enclen = coding->produced; | |
864 | ||
865 | /* Replace glyph codes that cannot be converted by | |
866 | terminal_coding with Vdos_unsupported_char_glyph. */ | |
867 | if (*conversion_buffer == '?') | |
868 | { | |
869 | char *cbp = conversion_buffer; | |
870 | ||
871 | while (cbp < conversion_buffer + enclen && *cbp == '?') | |
872 | *cbp++ = unsupported_char; | |
873 | if (unsupported_face != screen_face) | |
874 | IT_set_face (unsupported_face); | |
875 | } | |
876 | } | |
877 | ||
878 | if (enclen + chlen > screen_buf_end - screen_bp) | |
879 | { | |
880 | /* The allocated buffer for screen writes is too small. | |
881 | Flush it and loop again without incrementing STR, so | |
882 | that the next loop will begin with the same glyph. */ | |
883 | int nbytes = screen_bp - screen_buf; | |
884 | ||
885 | mouse_off_maybe (); | |
886 | dosmemput (screen_buf, nbytes, (int)ScreenPrimary + offset); | |
887 | if (screen_virtual_segment) | |
888 | dosv_refresh_virtual_screen (offset, nbytes / 2); | |
889 | new_pos_X += nbytes / 2; | |
890 | offset += nbytes; | |
891 | ||
892 | /* Prepare to reuse the same buffer again. */ | |
893 | screen_bp = screen_buf; | |
894 | } | |
895 | else | |
896 | { | |
897 | /* There's enough place in the allocated buffer to add | |
898 | the encoding of this glyph. */ | |
899 | ||
900 | /* First, copy the encoded bytes. */ | |
901 | for (bp = conversion_buffer; enclen--; bp++) | |
902 | { | |
903 | *screen_bp++ = (unsigned char)*bp; | |
904 | *screen_bp++ = ScreenAttrib; | |
905 | if (termscript) | |
906 | fputc (*bp, termscript); | |
907 | } | |
908 | ||
909 | /* Now copy the bytes not consumed by the encoding. */ | |
910 | if (chlen > 0) | |
911 | { | |
912 | buf += coding->consumed; | |
913 | while (chlen--) | |
914 | { | |
915 | if (termscript) | |
916 | fputc (*buf, termscript); | |
917 | *screen_bp++ = (unsigned char)*buf++; | |
918 | *screen_bp++ = ScreenAttrib; | |
919 | } | |
920 | } | |
921 | ||
922 | /* Update STR and its remaining length. */ | |
923 | str++; | |
924 | sl--; | |
925 | } | |
926 | } | |
aee81730 RS |
927 | } |
928 | ||
aa9ce936 | 929 | /* Dump whatever is left in the screen buffer. */ |
f32d4091 | 930 | mouse_off_maybe (); |
aa9ce936 | 931 | dosmemput (screen_buf, screen_bp - screen_buf, (int)ScreenPrimary + offset); |
039274cf | 932 | if (screen_virtual_segment) |
aa9ce936 EZ |
933 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); |
934 | new_pos_X += (screen_bp - screen_buf) / 2; | |
935 | ||
936 | /* We may have to output some codes to terminate the writing. */ | |
937 | if (CODING_REQUIRE_FLUSHING (coding)) | |
938 | { | |
939 | coding->mode |= CODING_MODE_LAST_BLOCK; | |
940 | encode_coding (coding, "", conversion_buffer, 0, conversion_buffer_size); | |
941 | if (coding->produced > 0) | |
942 | { | |
241424da | 943 | screen_buf = alloca (coding->produced * 2); |
aa9ce936 EZ |
944 | for (screen_bp = screen_buf, bp = conversion_buffer; |
945 | coding->produced--; bp++) | |
946 | { | |
947 | *screen_bp++ = (unsigned char)*bp; | |
948 | *screen_bp++ = ScreenAttrib; | |
949 | if (termscript) | |
950 | fputc (*bp, termscript); | |
951 | } | |
952 | offset += screen_bp - screen_buf; | |
953 | mouse_off_maybe (); | |
954 | dosmemput (screen_buf, screen_bp - screen_buf, | |
955 | (int)ScreenPrimary + offset); | |
956 | if (screen_virtual_segment) | |
957 | dosv_refresh_virtual_screen (offset, (screen_bp - screen_buf) / 2); | |
958 | new_pos_X += (screen_bp - screen_buf) / 2; | |
959 | } | |
960 | } | |
f32d4091 | 961 | } |
aee81730 | 962 | |
41ad069b EZ |
963 | /************************************************************************ |
964 | Mouse Highlight (and friends..) | |
965 | ************************************************************************/ | |
966 | ||
967 | /* This is used for debugging, to turn off note_mouse_highlight. */ | |
968 | int disable_mouse_highlight; | |
969 | ||
970 | /* If a string, dos_rawgetc generates an event to display that string. | |
971 | (The display is done in keyboard.c:read_char.) */ | |
972 | static Lisp_Object help_echo; | |
973 | static Lisp_Object previous_help_echo; /* a helper temporary variable */ | |
974 | ||
975 | static int mouse_preempted = 0; /* non-zero when XMenu gobbles mouse events */ | |
976 | ||
977 | /* Set the mouse pointer shape according to whether it is in the | |
978 | area where the mouse highlight is in effect. */ | |
979 | static void | |
980 | IT_set_mouse_pointer (int mode) | |
981 | { | |
982 | /* A no-op for now. DOS text-mode mouse pointer doesn't offer too | |
983 | many possibilities to change its shape, and the available | |
984 | functionality pretty much sucks (e.g., almost every reasonable | |
985 | shape will conceal the character it is on). Since the color of | |
986 | the pointer changes in the highlighted area, it is not clear to | |
987 | me whether anything else is required, anyway. */ | |
988 | } | |
989 | ||
990 | /* Display the active region described by mouse_face_* | |
991 | in its mouse-face if HL > 0, in its normal face if HL = 0. */ | |
992 | static void | |
993 | show_mouse_face (struct display_info *dpyinfo, int hl) | |
994 | { | |
995 | struct window *w = XWINDOW (dpyinfo->mouse_face_window); | |
996 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
997 | int i; | |
998 | struct face *fp; | |
999 | ||
1000 | ||
1001 | /* If window is in the process of being destroyed, don't bother | |
1002 | doing anything. */ | |
1003 | if (w->current_matrix == NULL) | |
1004 | goto set_cursor_shape; | |
1005 | ||
1006 | /* Recognize when we are called to operate on rows that don't exist | |
1007 | anymore. This can happen when a window is split. */ | |
1008 | if (dpyinfo->mouse_face_end_row >= w->current_matrix->nrows) | |
1009 | goto set_cursor_shape; | |
1010 | ||
1011 | /* There's no sense to do anything if the mouse face isn't realized. */ | |
1012 | if (hl > 0) | |
1013 | { | |
1014 | fp = FACE_FROM_ID (SELECTED_FRAME(), dpyinfo->mouse_face_face_id); | |
1015 | if (!fp) | |
1016 | goto set_cursor_shape; | |
1017 | } | |
1018 | ||
1019 | /* Note that mouse_face_beg_row etc. are window relative. */ | |
1020 | for (i = dpyinfo->mouse_face_beg_row; | |
1021 | i <= dpyinfo->mouse_face_end_row; | |
1022 | i++) | |
1023 | { | |
1024 | int start_hpos, end_hpos; | |
1025 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, i); | |
1026 | ||
1027 | /* Don't do anything if row doesn't have valid contents. */ | |
1028 | if (!row->enabled_p) | |
1029 | continue; | |
1030 | ||
1031 | /* For all but the first row, the highlight starts at column 0. */ | |
1032 | if (i == dpyinfo->mouse_face_beg_row) | |
1033 | start_hpos = dpyinfo->mouse_face_beg_col; | |
1034 | else | |
1035 | start_hpos = 0; | |
1036 | ||
1037 | if (i == dpyinfo->mouse_face_end_row) | |
1038 | end_hpos = dpyinfo->mouse_face_end_col; | |
1039 | else | |
1040 | end_hpos = row->used[TEXT_AREA]; | |
1041 | ||
1042 | if (end_hpos <= start_hpos) | |
1043 | continue; | |
1044 | if (hl > 0) | |
1045 | { | |
1046 | int vpos = row->y + WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w); | |
1047 | int kstart = start_hpos + WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w); | |
1048 | int nglyphs = end_hpos - start_hpos; | |
1049 | int offset = ScreenPrimary + 2*(vpos*screen_size_X + kstart) + 1; | |
1050 | int start_offset = offset; | |
1051 | ||
1052 | if (termscript) | |
1053 | fprintf (termscript, "\n<MH+ %d-%d:%d>", | |
1054 | kstart, kstart + nglyphs - 1, vpos); | |
1055 | ||
1056 | mouse_off (); | |
1057 | IT_set_face (dpyinfo->mouse_face_face_id); | |
1058 | /* Since we are going to change only the _colors_ of the | |
1059 | displayed text, there's no need to go through all the | |
1060 | pain of generating and encoding the text from the glyphs. | |
1061 | Instead, we simply poke the attribute byte of each | |
1062 | affected position in video memory with the colors | |
1063 | computed by IT_set_face! */ | |
1064 | _farsetsel (_dos_ds); | |
1065 | while (nglyphs--) | |
1066 | { | |
1067 | _farnspokeb (offset, ScreenAttrib); | |
1068 | offset += 2; | |
1069 | } | |
1070 | if (screen_virtual_segment) | |
1071 | dosv_refresh_virtual_screen (start_offset, end_hpos - start_hpos); | |
1072 | mouse_on (); | |
1073 | } | |
1074 | else | |
1075 | { | |
1076 | /* We are removing a previously-drawn mouse highlight. The | |
1077 | safest way to do so is to redraw the glyphs anew, since | |
1078 | all kinds of faces and display tables could have changed | |
1079 | behind our back. */ | |
1080 | int nglyphs = end_hpos - start_hpos; | |
1081 | int save_x = new_pos_X, save_y = new_pos_Y; | |
1082 | ||
1083 | if (end_hpos >= row->used[TEXT_AREA]) | |
1084 | nglyphs = row->used[TEXT_AREA] - start_hpos; | |
1085 | ||
1086 | /* IT_write_glyphs writes at cursor position, so we need to | |
1087 | temporarily move cursor coordinates to the beginning of | |
1088 | the highlight region. */ | |
1089 | new_pos_X = start_hpos + WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w); | |
1090 | new_pos_Y = row->y + WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w); | |
1091 | ||
1092 | if (termscript) | |
1093 | fprintf (termscript, "<MH- %d-%d:%d>", | |
1094 | new_pos_X, new_pos_X + nglyphs - 1, new_pos_Y); | |
1095 | IT_write_glyphs (row->glyphs[TEXT_AREA] + start_hpos, nglyphs); | |
1096 | if (termscript) | |
1097 | fputs ("\n", termscript); | |
1098 | new_pos_X = save_x; | |
1099 | new_pos_Y = save_y; | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | set_cursor_shape: | |
1104 | ||
1105 | /* Change the mouse pointer shape. */ | |
1106 | IT_set_mouse_pointer (hl); | |
1107 | } | |
1108 | ||
1109 | /* Clear out the mouse-highlighted active region. | |
1110 | Redraw it un-highlighted first. */ | |
1111 | static void | |
1112 | clear_mouse_face (struct display_info *dpyinfo) | |
1113 | { | |
1114 | if (! NILP (dpyinfo->mouse_face_window)) | |
1115 | show_mouse_face (dpyinfo, 0); | |
1116 | ||
1117 | dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; | |
1118 | dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; | |
1119 | dpyinfo->mouse_face_window = Qnil; | |
1120 | } | |
1121 | ||
1122 | /* Find the glyph matrix position of buffer position POS in window W. | |
1123 | *HPOS and *VPOS are set to the positions found. W's current glyphs | |
1124 | must be up to date. If POS is above window start return (0, 0). | |
1125 | If POS is after end of W, return end of last line in W. */ | |
1126 | static int | |
1127 | fast_find_position (struct window *w, int pos, int *hpos, int *vpos) | |
1128 | { | |
1129 | int i; | |
1130 | int lastcol; | |
1131 | int maybe_next_line_p = 0; | |
1132 | int line_start_position; | |
1133 | int yb = window_text_bottom_y (w); | |
1134 | struct glyph_row *row = MATRIX_ROW (w->current_matrix, 0); | |
1135 | struct glyph_row *best_row = row; | |
1136 | ||
1137 | while (row->y < yb) | |
1138 | { | |
1139 | if (row->used[TEXT_AREA]) | |
1140 | line_start_position = row->glyphs[TEXT_AREA]->charpos; | |
1141 | else | |
1142 | line_start_position = 0; | |
1143 | ||
1144 | if (line_start_position > pos) | |
1145 | break; | |
1146 | /* If the position sought is the end of the buffer, | |
1147 | don't include the blank lines at the bottom of the window. */ | |
1148 | else if (line_start_position == pos | |
1149 | && pos == BUF_ZV (XBUFFER (w->buffer))) | |
1150 | { | |
1151 | maybe_next_line_p = 1; | |
1152 | break; | |
1153 | } | |
1154 | else if (line_start_position > 0) | |
1155 | best_row = row; | |
1156 | ||
1157 | ++row; | |
1158 | } | |
1159 | ||
1160 | /* Find the right column within BEST_ROW. */ | |
1161 | lastcol = 0; | |
1162 | row = best_row; | |
1163 | for (i = 0; i < row->used[TEXT_AREA]; i++) | |
1164 | { | |
1165 | struct glyph *glyph = row->glyphs[TEXT_AREA] + i; | |
1166 | int charpos; | |
1167 | ||
1168 | charpos = glyph->charpos; | |
1169 | if (charpos == pos) | |
1170 | { | |
1171 | *hpos = i; | |
1172 | *vpos = row->y; | |
1173 | return 1; | |
1174 | } | |
1175 | else if (charpos > pos) | |
1176 | break; | |
1177 | else if (charpos > 0) | |
1178 | lastcol = i; | |
1179 | } | |
1180 | ||
1181 | /* If we're looking for the end of the buffer, | |
1182 | and we didn't find it in the line we scanned, | |
1183 | use the start of the following line. */ | |
1184 | if (maybe_next_line_p) | |
1185 | { | |
1186 | ++row; | |
1187 | lastcol = 0; | |
1188 | } | |
1189 | ||
1190 | *vpos = row->y; | |
1191 | *hpos = lastcol + 1; | |
1192 | return 0; | |
1193 | } | |
1194 | ||
1195 | /* Take proper action when mouse has moved to the mode or top line of | |
1196 | window W, x-position X. MODE_LINE_P non-zero means mouse is on the | |
1197 | mode line. X is relative to the start of the text display area of | |
1198 | W, so the width of bitmap areas and scroll bars must be subtracted | |
1199 | to get a position relative to the start of the mode line. */ | |
1200 | static void | |
1201 | IT_note_mode_line_highlight (struct window *w, int x, int mode_line_p) | |
1202 | { | |
1203 | struct frame *f = XFRAME (w->frame); | |
1204 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
1205 | struct glyph_row *row; | |
1206 | ||
1207 | if (mode_line_p) | |
1208 | row = MATRIX_MODE_LINE_ROW (w->current_matrix); | |
1209 | else | |
1210 | row = MATRIX_HEADER_LINE_ROW (w->current_matrix); | |
1211 | ||
1212 | if (row->enabled_p) | |
1213 | { | |
1214 | extern Lisp_Object Qhelp_echo; | |
1215 | struct glyph *glyph, *end; | |
1216 | Lisp_Object help, map; | |
1217 | ||
1218 | /* Find the glyph under X. */ | |
1219 | glyph = row->glyphs[TEXT_AREA] | |
1220 | + x - FRAME_LEFT_SCROLL_BAR_WIDTH (f) * CANON_X_UNIT (f); | |
1221 | end = glyph + row->used[TEXT_AREA]; | |
1222 | if (glyph < end | |
1223 | && STRINGP (glyph->object) | |
1224 | && XSTRING (glyph->object)->intervals | |
1225 | && glyph->charpos >= 0 | |
1226 | && glyph->charpos < XSTRING (glyph->object)->size) | |
1227 | { | |
1228 | /* If we're on a string with `help-echo' text property, | |
1229 | arrange for the help to be displayed. This is done by | |
1230 | setting the global variable help_echo to the help string. */ | |
1231 | help = Fget_text_property (make_number (glyph->charpos), | |
1232 | Qhelp_echo, glyph->object); | |
1233 | if (STRINGP (help)) | |
1234 | help_echo = help; | |
1235 | } | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | /* Take proper action when the mouse has moved to position X, Y on | |
1240 | frame F as regards highlighting characters that have mouse-face | |
1241 | properties. Also de-highlighting chars where the mouse was before. | |
1242 | X and Y can be negative or out of range. */ | |
1243 | static void | |
1244 | IT_note_mouse_highlight (struct frame *f, int x, int y) | |
1245 | { | |
1246 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
1247 | int portion; | |
1248 | Lisp_Object window; | |
1249 | struct window *w; | |
1250 | ||
1251 | /* When a menu is active, don't highlight because this looks odd. */ | |
1252 | if (mouse_preempted) | |
1253 | return; | |
1254 | ||
1255 | if (disable_mouse_highlight) | |
1256 | return; | |
1257 | ||
1258 | dpyinfo->mouse_face_mouse_x = x; | |
1259 | dpyinfo->mouse_face_mouse_y = y; | |
1260 | dpyinfo->mouse_face_mouse_frame = f; | |
1261 | ||
1262 | if (dpyinfo->mouse_face_defer) | |
1263 | return; | |
1264 | ||
1265 | if (gc_in_progress) | |
1266 | { | |
1267 | dpyinfo->mouse_face_deferred_gc = 1; | |
1268 | return; | |
1269 | } | |
1270 | ||
1271 | /* Which window is that in? */ | |
1272 | window = window_from_coordinates (f, x, y, &portion, 0); | |
1273 | ||
1274 | /* If we were displaying active text in another window, clear that. */ | |
1275 | if (! EQ (window, dpyinfo->mouse_face_window)) | |
1276 | clear_mouse_face (dpyinfo); | |
1277 | ||
1278 | /* Not on a window -> return. */ | |
1279 | if (!WINDOWP (window)) | |
1280 | return; | |
1281 | ||
1282 | /* Convert to window-relative coordinates. */ | |
1283 | w = XWINDOW (window); | |
1284 | x -= WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w); | |
1285 | y -= WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w); | |
1286 | ||
1287 | if (portion == 1 || portion == 3) | |
1288 | { | |
1289 | /* Mouse is on the mode or top line. */ | |
1290 | IT_note_mode_line_highlight (w, x, portion == 1); | |
1291 | return; | |
1292 | } | |
1293 | else | |
1294 | IT_set_mouse_pointer (0); | |
1295 | ||
1296 | /* Are we in a window whose display is up to date? | |
1297 | And verify the buffer's text has not changed. */ | |
1298 | if (/* Within text portion of the window. */ | |
1299 | portion == 0 | |
1300 | && EQ (w->window_end_valid, w->buffer) | |
1301 | && XFASTINT (w->last_modified) == BUF_MODIFF (XBUFFER (w->buffer)) | |
1302 | && (XFASTINT (w->last_overlay_modified) | |
1303 | == BUF_OVERLAY_MODIFF (XBUFFER (w->buffer)))) | |
1304 | { | |
1305 | int pos, i, area; | |
1306 | struct glyph_row *row; | |
1307 | struct glyph *glyph; | |
1308 | ||
1309 | /* Find the glyph under X/Y. */ | |
1310 | glyph = NULL; | |
1311 | if (y < w->current_matrix->nrows) | |
1312 | { | |
1313 | row = MATRIX_ROW (w->current_matrix, y); | |
1314 | if (row->enabled_p | |
1315 | && row->displays_text_p | |
1316 | && x < window_box_width (w, TEXT_AREA)) | |
1317 | { | |
1318 | glyph = row->glyphs[TEXT_AREA]; | |
1319 | if (x >= row->used[TEXT_AREA]) | |
1320 | glyph = NULL; | |
1321 | else | |
1322 | { | |
1323 | glyph += x; | |
1324 | if (!BUFFERP (glyph->object)) | |
1325 | glyph = NULL; | |
1326 | } | |
1327 | } | |
1328 | } | |
1329 | ||
1330 | /* Clear mouse face if X/Y not over text. */ | |
1331 | if (glyph == NULL) | |
1332 | { | |
1333 | clear_mouse_face (dpyinfo); | |
1334 | return; | |
1335 | } | |
1336 | ||
1337 | if (!BUFFERP (glyph->object)) | |
1338 | abort (); | |
1339 | pos = glyph->charpos; | |
1340 | ||
1341 | /* Check for mouse-face and help-echo. */ | |
1342 | { | |
1343 | extern Lisp_Object Qmouse_face; | |
1344 | Lisp_Object mouse_face, overlay, position; | |
1345 | Lisp_Object *overlay_vec; | |
1346 | int len, noverlays; | |
1347 | struct buffer *obuf; | |
1348 | int obegv, ozv; | |
1349 | ||
1350 | /* If we get an out-of-range value, return now; avoid an error. */ | |
1351 | if (pos > BUF_Z (XBUFFER (w->buffer))) | |
1352 | return; | |
1353 | ||
1354 | /* Make the window's buffer temporarily current for | |
1355 | overlays_at and compute_char_face. */ | |
1356 | obuf = current_buffer; | |
1357 | current_buffer = XBUFFER (w->buffer); | |
1358 | obegv = BEGV; | |
1359 | ozv = ZV; | |
1360 | BEGV = BEG; | |
1361 | ZV = Z; | |
1362 | ||
1363 | /* Is this char mouse-active or does it have help-echo? */ | |
1364 | XSETINT (position, pos); | |
1365 | ||
1366 | /* Put all the overlays we want in a vector in overlay_vec. | |
1367 | Store the length in len. If there are more than 10, make | |
1368 | enough space for all, and try again. */ | |
1369 | len = 10; | |
1370 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
1371 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, NULL, NULL); | |
1372 | if (noverlays > len) | |
1373 | { | |
1374 | len = noverlays; | |
1375 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
1376 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, NULL, NULL); | |
1377 | } | |
1378 | ||
1379 | noverlays = sort_overlays (overlay_vec, noverlays, w); | |
1380 | ||
1381 | /* Check mouse-face highlighting. */ | |
1382 | if (! (EQ (window, dpyinfo->mouse_face_window) | |
1383 | && y >= dpyinfo->mouse_face_beg_row | |
1384 | && y <= dpyinfo->mouse_face_end_row | |
1385 | && (y > dpyinfo->mouse_face_beg_row | |
1386 | || x >= dpyinfo->mouse_face_beg_col) | |
1387 | && (y < dpyinfo->mouse_face_end_row | |
1388 | || x < dpyinfo->mouse_face_end_col | |
1389 | || dpyinfo->mouse_face_past_end))) | |
1390 | { | |
1391 | /* Clear the display of the old active region, if any. */ | |
1392 | clear_mouse_face (dpyinfo); | |
1393 | ||
1394 | /* Find highest priority overlay that has a mouse-face prop. */ | |
1395 | overlay = Qnil; | |
1396 | for (i = 0; i < noverlays; i++) | |
1397 | { | |
1398 | mouse_face = Foverlay_get (overlay_vec[i], Qmouse_face); | |
1399 | if (!NILP (mouse_face)) | |
1400 | { | |
1401 | overlay = overlay_vec[i]; | |
1402 | break; | |
1403 | } | |
1404 | } | |
1405 | ||
1406 | /* If no overlay applies, get a text property. */ | |
1407 | if (NILP (overlay)) | |
1408 | mouse_face = Fget_text_property (position, Qmouse_face, | |
1409 | w->buffer); | |
1410 | ||
1411 | /* Handle the overlay case. */ | |
1412 | if (! NILP (overlay)) | |
1413 | { | |
1414 | /* Find the range of text around this char that | |
1415 | should be active. */ | |
1416 | Lisp_Object before, after; | |
1417 | int ignore; | |
1418 | ||
1419 | before = Foverlay_start (overlay); | |
1420 | after = Foverlay_end (overlay); | |
1421 | /* Record this as the current active region. */ | |
1422 | fast_find_position (w, XFASTINT (before), | |
1423 | &dpyinfo->mouse_face_beg_col, | |
1424 | &dpyinfo->mouse_face_beg_row); | |
1425 | dpyinfo->mouse_face_past_end | |
1426 | = !fast_find_position (w, XFASTINT (after), | |
1427 | &dpyinfo->mouse_face_end_col, | |
1428 | &dpyinfo->mouse_face_end_row); | |
1429 | dpyinfo->mouse_face_window = window; | |
1430 | dpyinfo->mouse_face_face_id | |
1431 | = face_at_buffer_position (w, pos, 0, 0, | |
1432 | &ignore, pos + 1, 1); | |
1433 | ||
1434 | /* Display it as active. */ | |
1435 | show_mouse_face (dpyinfo, 1); | |
1436 | } | |
1437 | /* Handle the text property case. */ | |
1438 | else if (! NILP (mouse_face)) | |
1439 | { | |
1440 | /* Find the range of text around this char that | |
1441 | should be active. */ | |
1442 | Lisp_Object before, after, beginning, end; | |
1443 | int ignore; | |
1444 | ||
1445 | beginning = Fmarker_position (w->start); | |
1446 | XSETINT (end, (BUF_Z (XBUFFER (w->buffer)) | |
1447 | - XFASTINT (w->window_end_pos))); | |
1448 | before | |
1449 | = Fprevious_single_property_change (make_number (pos + 1), | |
1450 | Qmouse_face, | |
1451 | w->buffer, beginning); | |
1452 | after | |
1453 | = Fnext_single_property_change (position, Qmouse_face, | |
1454 | w->buffer, end); | |
1455 | /* Record this as the current active region. */ | |
1456 | fast_find_position (w, XFASTINT (before), | |
1457 | &dpyinfo->mouse_face_beg_col, | |
1458 | &dpyinfo->mouse_face_beg_row); | |
1459 | dpyinfo->mouse_face_past_end | |
1460 | = !fast_find_position (w, XFASTINT (after), | |
1461 | &dpyinfo->mouse_face_end_col, | |
1462 | &dpyinfo->mouse_face_end_row); | |
1463 | dpyinfo->mouse_face_window = window; | |
1464 | dpyinfo->mouse_face_face_id | |
1465 | = face_at_buffer_position (w, pos, 0, 0, | |
1466 | &ignore, pos + 1, 1); | |
1467 | ||
1468 | /* Display it as active. */ | |
1469 | show_mouse_face (dpyinfo, 1); | |
1470 | } | |
1471 | } | |
1472 | ||
1473 | /* Look for a `help-echo' property. */ | |
1474 | { | |
1475 | Lisp_Object help; | |
1476 | extern Lisp_Object Qhelp_echo; | |
1477 | ||
1478 | /* Check overlays first. */ | |
1479 | help = Qnil; | |
1480 | for (i = 0; i < noverlays && !STRINGP (help); ++i) | |
1481 | help = Foverlay_get (overlay_vec[i], Qhelp_echo); | |
1482 | ||
1483 | /* Try text properties. */ | |
1484 | if (!STRINGP (help) | |
1485 | && ((STRINGP (glyph->object) | |
1486 | && glyph->charpos >= 0 | |
1487 | && glyph->charpos < XSTRING (glyph->object)->size) | |
1488 | || (BUFFERP (glyph->object) | |
1489 | && glyph->charpos >= BEGV | |
1490 | && glyph->charpos < ZV))) | |
1491 | help = Fget_text_property (make_number (glyph->charpos), | |
1492 | Qhelp_echo, glyph->object); | |
1493 | ||
1494 | if (STRINGP (help)) | |
1495 | help_echo = help; | |
1496 | } | |
1497 | ||
1498 | BEGV = obegv; | |
1499 | ZV = ozv; | |
1500 | current_buffer = obuf; | |
1501 | } | |
1502 | } | |
1503 | } | |
1504 | ||
71f65669 EZ |
1505 | static void |
1506 | IT_clear_end_of_line (int first_unused) | |
f32d4091 KS |
1507 | { |
1508 | char *spaces, *sp; | |
1509 | int i, j; | |
039274cf | 1510 | int offset = 2 * (new_pos_X + screen_size_X * new_pos_Y); |
aa9ce936 EZ |
1511 | extern int fatal_error_in_progress; |
1512 | ||
2d764c78 | 1513 | if (new_pos_X >= first_unused || fatal_error_in_progress) |
aa9ce936 | 1514 | return; |
f32d4091 KS |
1515 | |
1516 | IT_set_face (0); | |
2d764c78 | 1517 | i = (j = first_unused - new_pos_X) * 2; |
e25d9653 EZ |
1518 | if (termscript) |
1519 | fprintf (termscript, "<CLR:EOL[%d..%d)>", new_pos_X, first_unused); | |
f32d4091 | 1520 | spaces = sp = alloca (i); |
aee81730 | 1521 | |
f32d4091 | 1522 | while (--j >= 0) |
aee81730 | 1523 | { |
f32d4091 KS |
1524 | *sp++ = ' '; |
1525 | *sp++ = ScreenAttrib; | |
aee81730 RS |
1526 | } |
1527 | ||
f32d4091 | 1528 | mouse_off_maybe (); |
039274cf EZ |
1529 | dosmemput (spaces, i, (int)ScreenPrimary + offset); |
1530 | if (screen_virtual_segment) | |
1531 | dosv_refresh_virtual_screen (offset, i / 2); | |
2d764c78 EZ |
1532 | |
1533 | /* clear_end_of_line_raw on term.c leaves the cursor at first_unused. | |
1534 | Let's follow their lead, in case someone relies on this. */ | |
1535 | new_pos_X = first_unused; | |
aee81730 RS |
1536 | } |
1537 | ||
71f65669 | 1538 | static void |
f32d4091 KS |
1539 | IT_clear_screen (void) |
1540 | { | |
1541 | if (termscript) | |
1542 | fprintf (termscript, "<CLR:SCR>"); | |
1543 | IT_set_face (0); | |
1544 | mouse_off (); | |
1545 | ScreenClear (); | |
039274cf EZ |
1546 | if (screen_virtual_segment) |
1547 | dosv_refresh_virtual_screen (0, screen_size); | |
f32d4091 KS |
1548 | new_pos_X = new_pos_Y = 0; |
1549 | } | |
1550 | ||
71f65669 | 1551 | static void |
f32d4091 KS |
1552 | IT_clear_to_end (void) |
1553 | { | |
1554 | if (termscript) | |
1555 | fprintf (termscript, "<CLR:EOS>"); | |
1556 | ||
1557 | while (new_pos_Y < screen_size_Y) { | |
1558 | new_pos_X = 0; | |
e25d9653 | 1559 | IT_clear_end_of_line (screen_size_X); |
f32d4091 KS |
1560 | new_pos_Y++; |
1561 | } | |
1562 | } | |
1563 | ||
71f65669 | 1564 | static void |
f32d4091 KS |
1565 | IT_cursor_to (int y, int x) |
1566 | { | |
1567 | if (termscript) | |
1568 | fprintf (termscript, "\n<XY=%dx%d>", x, y); | |
1569 | new_pos_X = x; | |
1570 | new_pos_Y = y; | |
1571 | } | |
1572 | ||
fc171623 KH |
1573 | static int cursor_cleared; |
1574 | ||
d1d5dc19 | 1575 | static void |
fc171623 KH |
1576 | IT_display_cursor (int on) |
1577 | { | |
1578 | if (on && cursor_cleared) | |
1579 | { | |
1580 | ScreenSetCursor (current_pos_Y, current_pos_X); | |
1581 | cursor_cleared = 0; | |
1582 | } | |
1583 | else if (!on && !cursor_cleared) | |
1584 | { | |
1585 | ScreenSetCursor (-1, -1); | |
1586 | cursor_cleared = 1; | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | /* Emacs calls cursor-movement functions a lot when it updates the | |
1591 | display (probably a legacy of old terminals where you cannot | |
1592 | update a screen line without first moving the cursor there). | |
1593 | However, cursor movement is expensive on MSDOS (it calls a slow | |
1594 | BIOS function and requires 2 mode switches), while actual screen | |
1595 | updates access the video memory directly and don't depend on | |
1596 | cursor position. To avoid slowing down the redisplay, we cheat: | |
1597 | all functions that move the cursor only set internal variables | |
1598 | which record the cursor position, whereas the cursor is only | |
1599 | moved to its final position whenever screen update is complete. | |
1600 | ||
1601 | `IT_cmgoto' is called from the keyboard reading loop and when the | |
1602 | frame update is complete. This means that we are ready for user | |
1603 | input, so we update the cursor position to show where the point is, | |
1604 | and also make the mouse pointer visible. | |
1605 | ||
1606 | Special treatment is required when the cursor is in the echo area, | |
1607 | to put the cursor at the end of the text displayed there. */ | |
1608 | ||
71f65669 EZ |
1609 | static void |
1610 | IT_cmgoto (FRAME_PTR f) | |
fc171623 KH |
1611 | { |
1612 | /* Only set the cursor to where it should be if the display is | |
1613 | already in sync with the window contents. */ | |
2d764c78 EZ |
1614 | int update_cursor_pos = 1; /* MODIFF == unchanged_modified; */ |
1615 | ||
1616 | /* FIXME: This needs to be rewritten for the new redisplay, or | |
1617 | removed. */ | |
1618 | #if 0 | |
06da1de1 EZ |
1619 | static int previous_pos_X = -1; |
1620 | ||
2d764c78 EZ |
1621 | update_cursor_pos = 1; /* temporary!!! */ |
1622 | ||
06da1de1 EZ |
1623 | /* If the display is in sync, forget any previous knowledge about |
1624 | cursor position. This is primarily for unexpected events like | |
1625 | C-g in the minibuffer. */ | |
1626 | if (update_cursor_pos && previous_pos_X >= 0) | |
1627 | previous_pos_X = -1; | |
1628 | /* If we are in the echo area, put the cursor at the | |
1629 | end of the echo area message. */ | |
fc171623 KH |
1630 | if (!update_cursor_pos |
1631 | && XFASTINT (XWINDOW (FRAME_MINIBUF_WINDOW (f))->top) <= new_pos_Y) | |
1632 | { | |
06da1de1 EZ |
1633 | int tem_X = current_pos_X, dummy; |
1634 | ||
1635 | if (echo_area_glyphs) | |
1636 | { | |
1637 | tem_X = echo_area_glyphs_length; | |
1638 | /* Save current cursor position, to be restored after the | |
1639 | echo area message is erased. Only remember one level | |
1640 | of previous cursor position. */ | |
1641 | if (previous_pos_X == -1) | |
1642 | ScreenGetCursor (&dummy, &previous_pos_X); | |
1643 | } | |
1644 | else if (previous_pos_X >= 0) | |
1645 | { | |
1646 | /* We wind up here after the echo area message is erased. | |
1647 | Restore the cursor position we remembered above. */ | |
1648 | tem_X = previous_pos_X; | |
1649 | previous_pos_X = -1; | |
1650 | } | |
9a599a60 | 1651 | |
06da1de1 | 1652 | if (current_pos_X != tem_X) |
9a599a60 EZ |
1653 | { |
1654 | new_pos_X = tem_X; | |
1655 | update_cursor_pos = 1; | |
1656 | } | |
fc171623 | 1657 | } |
2d764c78 | 1658 | #endif |
fc171623 KH |
1659 | |
1660 | if (update_cursor_pos | |
1661 | && (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y)) | |
1662 | { | |
1663 | ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X); | |
1664 | if (termscript) | |
1665 | fprintf (termscript, "\n<CURSOR:%dx%d>", current_pos_X, current_pos_Y); | |
1666 | } | |
1667 | ||
1668 | /* Maybe cursor is invisible, so make it visible. */ | |
1669 | IT_display_cursor (1); | |
1670 | ||
1671 | /* Mouse pointer should be always visible if we are waiting for | |
1672 | keyboard input. */ | |
1673 | if (!mouse_visible) | |
1674 | mouse_on (); | |
1675 | } | |
1676 | ||
71f65669 EZ |
1677 | static void |
1678 | IT_reassert_line_highlight (int new, int vpos) | |
f32d4091 KS |
1679 | { |
1680 | highlight = new; | |
f32d4091 KS |
1681 | } |
1682 | ||
71f65669 | 1683 | static void |
c77f6f1b | 1684 | IT_change_line_highlight (int new_highlight, int y, int vpos, int first_unused_hpos) |
1b94449f | 1685 | { |
f32d4091 | 1686 | highlight = new_highlight; |
f32d4091 KS |
1687 | IT_cursor_to (vpos, 0); |
1688 | IT_clear_end_of_line (first_unused_hpos); | |
1689 | } | |
1690 | ||
71f65669 | 1691 | static void |
41ad069b | 1692 | IT_update_begin (struct frame *f) |
f32d4091 | 1693 | { |
41ad069b EZ |
1694 | struct display_info *display_info = FRAME_X_DISPLAY_INFO (f); |
1695 | ||
f32d4091 | 1696 | highlight = 0; |
41ad069b EZ |
1697 | |
1698 | BLOCK_INPUT; | |
1699 | ||
1700 | if (f == display_info->mouse_face_mouse_frame) | |
1701 | { | |
1702 | /* Don't do highlighting for mouse motion during the update. */ | |
1703 | display_info->mouse_face_defer = 1; | |
1704 | ||
1705 | /* If F needs to be redrawn, simply forget about any prior mouse | |
1706 | highlighting. */ | |
1707 | if (FRAME_GARBAGED_P (f)) | |
1708 | display_info->mouse_face_window = Qnil; | |
1709 | ||
1710 | /* Can we tell that this update does not affect the window | |
1711 | where the mouse highlight is? If so, no need to turn off. | |
1712 | Likewise, don't do anything if the frame is garbaged; | |
1713 | in that case, the frame's current matrix that we would use | |
1714 | is all wrong, and we will redisplay that line anyway. */ | |
8ccb9a54 EZ |
1715 | if (!NILP (display_info->mouse_face_window) |
1716 | && WINDOWP (display_info->mouse_face_window)) | |
41ad069b EZ |
1717 | { |
1718 | struct window *w = XWINDOW (display_info->mouse_face_window); | |
1719 | int i; | |
1720 | ||
8ccb9a54 EZ |
1721 | /* If the mouse highlight is in the window that was deleted |
1722 | (e.g., if it was popped by completion), clear highlight | |
1723 | unconditionally. */ | |
1724 | if (NILP (w->buffer)) | |
1725 | display_info->mouse_face_window = Qnil; | |
1726 | else | |
1727 | { | |
1728 | for (i = 0; i < w->desired_matrix->nrows; ++i) | |
1729 | if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i)) | |
1730 | break; | |
1731 | } | |
41ad069b | 1732 | |
8ccb9a54 | 1733 | if (NILP (w->buffer) || i < w->desired_matrix->nrows) |
41ad069b EZ |
1734 | clear_mouse_face (display_info); |
1735 | } | |
1736 | } | |
1737 | else if (!FRAME_LIVE_P (display_info->mouse_face_mouse_frame)) | |
1738 | { | |
1739 | /* If the frame with mouse highlight was deleted, invalidate the | |
1740 | highlight info. */ | |
1741 | display_info->mouse_face_beg_row = display_info->mouse_face_beg_col = -1; | |
1742 | display_info->mouse_face_end_row = display_info->mouse_face_end_col = -1; | |
1743 | display_info->mouse_face_window = Qnil; | |
1744 | display_info->mouse_face_deferred_gc = 0; | |
1745 | display_info->mouse_face_mouse_frame = NULL; | |
1746 | } | |
1747 | ||
1748 | UNBLOCK_INPUT; | |
f32d4091 KS |
1749 | } |
1750 | ||
71f65669 | 1751 | static void |
41ad069b | 1752 | IT_update_end (struct frame *f) |
f32d4091 | 1753 | { |
41ad069b EZ |
1754 | highlight = 0; |
1755 | FRAME_X_DISPLAY_INFO (f)->mouse_face_defer = 0; | |
1756 | } | |
1757 | ||
1758 | static void | |
1759 | IT_frame_up_to_date (struct frame *f) | |
1760 | { | |
1761 | struct display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
1762 | ||
1763 | if (dpyinfo->mouse_face_deferred_gc | |
1764 | || f == dpyinfo->mouse_face_mouse_frame) | |
1765 | { | |
1766 | BLOCK_INPUT; | |
1767 | if (dpyinfo->mouse_face_mouse_frame) | |
1768 | IT_note_mouse_highlight (dpyinfo->mouse_face_mouse_frame, | |
1769 | dpyinfo->mouse_face_mouse_x, | |
1770 | dpyinfo->mouse_face_mouse_y); | |
1771 | dpyinfo->mouse_face_deferred_gc = 0; | |
1772 | UNBLOCK_INPUT; | |
1773 | } | |
1774 | ||
1775 | IT_cmgoto (f); /* position cursor when update is done */ | |
f32d4091 | 1776 | } |
1b94449f | 1777 | |
c77f6f1b EZ |
1778 | /* Copy LEN glyphs displayed on a single line whose vertical position |
1779 | is YPOS, beginning at horizontal position XFROM to horizontal | |
1780 | position XTO, by moving blocks in the video memory. Used by | |
1781 | functions that insert and delete glyphs. */ | |
1782 | static void | |
1783 | IT_copy_glyphs (int xfrom, int xto, size_t len, int ypos) | |
1784 | { | |
1785 | /* The offsets of source and destination relative to the | |
1786 | conventional memorty selector. */ | |
1787 | int from = 2 * (xfrom + screen_size_X * ypos) + ScreenPrimary; | |
1788 | int to = 2 * (xto + screen_size_X * ypos) + ScreenPrimary; | |
1789 | ||
1790 | if (from == to || len <= 0) | |
1791 | return; | |
1792 | ||
1793 | _farsetsel (_dos_ds); | |
1794 | ||
1795 | /* The source and destination might overlap, so we need to move | |
1796 | glyphs non-destructively. */ | |
1797 | if (from > to) | |
1798 | { | |
1799 | for ( ; len; from += 2, to += 2, len--) | |
1800 | _farnspokew (to, _farnspeekw (from)); | |
1801 | } | |
1802 | else | |
1803 | { | |
1804 | from += (len - 1) * 2; | |
1805 | to += (len - 1) * 2; | |
1806 | for ( ; len; from -= 2, to -= 2, len--) | |
1807 | _farnspokew (to, _farnspeekw (from)); | |
1808 | } | |
1809 | if (screen_virtual_segment) | |
1810 | dosv_refresh_virtual_screen (ypos * screen_size_X * 2, screen_size_X); | |
1811 | } | |
1812 | ||
1813 | /* Insert and delete glyphs. */ | |
aa9ce936 EZ |
1814 | static void |
1815 | IT_insert_glyphs (start, len) | |
c77f6f1b | 1816 | register struct glyph *start; |
aa9ce936 EZ |
1817 | register int len; |
1818 | { | |
c77f6f1b EZ |
1819 | int shift_by_width = screen_size_X - (new_pos_X + len); |
1820 | ||
1821 | /* Shift right the glyphs from the nominal cursor position to the | |
1822 | end of this line. */ | |
1823 | IT_copy_glyphs (new_pos_X, new_pos_X + len, shift_by_width, new_pos_Y); | |
1824 | ||
1825 | /* Now write the glyphs to be inserted. */ | |
1826 | IT_write_glyphs (start, len); | |
aa9ce936 EZ |
1827 | } |
1828 | ||
1829 | static void | |
1830 | IT_delete_glyphs (n) | |
1831 | register int n; | |
1832 | { | |
1833 | abort (); | |
1834 | } | |
1835 | ||
211c7152 | 1836 | /* set-window-configuration on window.c needs this. */ |
3bb1f22f RS |
1837 | void |
1838 | x_set_menu_bar_lines (f, value, oldval) | |
1839 | struct frame *f; | |
1840 | Lisp_Object value, oldval; | |
1841 | { | |
211c7152 EZ |
1842 | set_menu_bar_lines (f, value, oldval); |
1843 | } | |
3bb1f22f | 1844 | |
211c7152 | 1845 | /* This was copied from xfns.c */ |
3bb1f22f | 1846 | |
211c7152 EZ |
1847 | Lisp_Object Qbackground_color; |
1848 | Lisp_Object Qforeground_color; | |
1849 | extern Lisp_Object Qtitle; | |
3bb1f22f | 1850 | |
48ffe371 RS |
1851 | /* IT_set_terminal_modes is called when emacs is started, |
1852 | resumed, and whenever the screen is redrawn! */ | |
f32d4091 | 1853 | |
71f65669 | 1854 | static void |
f32d4091 KS |
1855 | IT_set_terminal_modes (void) |
1856 | { | |
aee81730 | 1857 | if (termscript) |
f32d4091 KS |
1858 | fprintf (termscript, "\n<SET_TERM>"); |
1859 | highlight = 0; | |
1860 | ||
1861 | screen_size_X = ScreenCols (); | |
1862 | screen_size_Y = ScreenRows (); | |
1863 | screen_size = screen_size_X * screen_size_Y; | |
aee81730 | 1864 | |
f32d4091 KS |
1865 | new_pos_X = new_pos_Y = 0; |
1866 | current_pos_X = current_pos_Y = -1; | |
1867 | ||
1868 | if (term_setup_done) | |
1869 | return; | |
1870 | term_setup_done = 1; | |
aee81730 | 1871 | |
f32d4091 KS |
1872 | startup_screen_size_X = screen_size_X; |
1873 | startup_screen_size_Y = screen_size_Y; | |
c9adab25 | 1874 | startup_screen_attrib = ScreenAttrib; |
f32d4091 | 1875 | |
039274cf EZ |
1876 | #if __DJGPP__ > 1 |
1877 | /* Is DOS/V (or any other RSIS software which relocates | |
1878 | the screen) installed? */ | |
1879 | { | |
1880 | unsigned short es_value; | |
1881 | __dpmi_regs regs; | |
1882 | ||
1883 | regs.h.ah = 0xfe; /* get relocated screen address */ | |
1884 | if (ScreenPrimary == 0xb0000UL || ScreenPrimary == 0xb8000UL) | |
1885 | regs.x.es = (ScreenPrimary >> 4) & 0xffff; | |
1886 | else if (screen_old_address) /* already switched to Japanese mode once */ | |
1887 | regs.x.es = (screen_old_address >> 4) & 0xffff; | |
1888 | else | |
1889 | regs.x.es = ScreenMode () == 7 ? 0xb000 : 0xb800; | |
1890 | regs.x.di = 0; | |
1891 | es_value = regs.x.es; | |
1892 | __dpmi_int (0x10, ®s); | |
1893 | ||
d1d5dc19 | 1894 | if (regs.x.es != es_value) |
039274cf | 1895 | { |
d1d5dc19 EZ |
1896 | /* screen_old_address is only set if ScreenPrimary does NOT |
1897 | already point to the relocated buffer address returned by | |
1898 | the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets | |
1899 | ScreenPrimary to that address at startup under DOS/V. */ | |
1900 | if (regs.x.es != (ScreenPrimary >> 4) & 0xffff) | |
1901 | screen_old_address = ScreenPrimary; | |
039274cf EZ |
1902 | screen_virtual_segment = regs.x.es; |
1903 | screen_virtual_offset = regs.x.di; | |
1904 | ScreenPrimary = (screen_virtual_segment << 4) + screen_virtual_offset; | |
1905 | } | |
1906 | } | |
1907 | #endif /* __DJGPP__ > 1 */ | |
1908 | ||
f32d4091 KS |
1909 | ScreenGetCursor (&startup_pos_Y, &startup_pos_X); |
1910 | ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2)); | |
1911 | ||
1912 | if (termscript) | |
c9adab25 | 1913 | fprintf (termscript, "<SCREEN SAVED (dimensions=%dx%d)>\n", |
039274cf | 1914 | screen_size_X, screen_size_Y); |
76ac1508 RS |
1915 | |
1916 | bright_bg (); | |
f32d4091 KS |
1917 | } |
1918 | ||
48ffe371 RS |
1919 | /* IT_reset_terminal_modes is called when emacs is |
1920 | suspended or killed. */ | |
f32d4091 | 1921 | |
71f65669 | 1922 | static void |
f32d4091 KS |
1923 | IT_reset_terminal_modes (void) |
1924 | { | |
c9adab25 KH |
1925 | int display_row_start = (int) ScreenPrimary; |
1926 | int saved_row_len = startup_screen_size_X * 2; | |
1927 | int update_row_len = ScreenCols () * 2; | |
1928 | int current_rows = ScreenRows (); | |
1929 | int to_next_row = update_row_len; | |
1930 | unsigned char *saved_row = startup_screen_buffer; | |
1931 | int cursor_pos_X = ScreenCols () - 1; | |
1932 | int cursor_pos_Y = ScreenRows () - 1; | |
1933 | ||
f32d4091 | 1934 | if (termscript) |
5063b150 | 1935 | fprintf (termscript, "\n<RESET_TERM>"); |
f32d4091 KS |
1936 | |
1937 | highlight = 0; | |
1938 | ||
1939 | if (!term_setup_done) | |
1940 | return; | |
1941 | ||
c9adab25 | 1942 | mouse_off (); |
b36701cc RS |
1943 | |
1944 | /* Leave the video system in the same state as we found it, | |
1945 | as far as the blink/bright-background bit is concerned. */ | |
1946 | maybe_enable_blinking (); | |
06b1ea13 | 1947 | |
c9adab25 KH |
1948 | /* We have a situation here. |
1949 | We cannot just do ScreenUpdate(startup_screen_buffer) because | |
1950 | the luser could have changed screen dimensions inside Emacs | |
1951 | and failed (or didn't want) to restore them before killing | |
1952 | Emacs. ScreenUpdate() uses the *current* screen dimensions and | |
1953 | thus will happily use memory outside what was allocated for | |
1954 | `startup_screen_buffer'. | |
1955 | Thus we only restore as much as the current screen dimensions | |
1956 | can hold, and clear the rest (if the saved screen is smaller than | |
1957 | the current) with the color attribute saved at startup. The cursor | |
1958 | is also restored within the visible dimensions. */ | |
1959 | ||
1960 | ScreenAttrib = startup_screen_attrib; | |
c9adab25 | 1961 | |
06b1ea13 EZ |
1962 | /* Don't restore the screen if we are exiting less than 2 seconds |
1963 | after startup: we might be crashing, and the screen might show | |
1964 | some vital clues to what's wrong. */ | |
1965 | if (clock () - startup_time >= 2*CLOCKS_PER_SEC) | |
c9adab25 | 1966 | { |
06b1ea13 | 1967 | ScreenClear (); |
039274cf | 1968 | if (screen_virtual_segment) |
06b1ea13 EZ |
1969 | dosv_refresh_virtual_screen (0, screen_size); |
1970 | ||
1971 | if (update_row_len > saved_row_len) | |
1972 | update_row_len = saved_row_len; | |
1973 | if (current_rows > startup_screen_size_Y) | |
1974 | current_rows = startup_screen_size_Y; | |
1975 | ||
1976 | if (termscript) | |
1977 | fprintf (termscript, "<SCREEN RESTORED (dimensions=%dx%d)>\n", | |
1978 | update_row_len / 2, current_rows); | |
1979 | ||
1980 | while (current_rows--) | |
1981 | { | |
1982 | dosmemput (saved_row, update_row_len, display_row_start); | |
1983 | if (screen_virtual_segment) | |
1984 | dosv_refresh_virtual_screen (display_row_start - ScreenPrimary, | |
1985 | update_row_len / 2); | |
1986 | saved_row += saved_row_len; | |
1987 | display_row_start += to_next_row; | |
1988 | } | |
c9adab25 KH |
1989 | } |
1990 | if (startup_pos_X < cursor_pos_X) | |
1991 | cursor_pos_X = startup_pos_X; | |
1992 | if (startup_pos_Y < cursor_pos_Y) | |
1993 | cursor_pos_Y = startup_pos_Y; | |
1994 | ||
1995 | ScreenSetCursor (cursor_pos_Y, cursor_pos_X); | |
1996 | xfree (startup_screen_buffer); | |
f32d4091 KS |
1997 | |
1998 | term_setup_done = 0; | |
1999 | } | |
2000 | ||
71f65669 EZ |
2001 | static void |
2002 | IT_set_terminal_window (int foo) | |
f32d4091 KS |
2003 | { |
2004 | } | |
2005 | ||
2d764c78 EZ |
2006 | /* Remember the screen colors of the curent frame, to serve as the |
2007 | default colors for newly-created frames. */ | |
2008 | ||
2009 | static int initial_screen_colors[2]; | |
2010 | ||
2011 | DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors, | |
2012 | Smsdos_remember_default_colors, 1, 1, 0, | |
2013 | "Remember the screen colors of the current frame.") | |
2014 | (frame) | |
2015 | Lisp_Object frame; | |
2016 | { | |
2017 | int reverse; | |
2018 | struct frame *f; | |
2019 | ||
2020 | CHECK_FRAME (frame, 0); | |
2021 | f= XFRAME (frame); | |
2022 | reverse = EQ (Fcdr (Fassq (intern ("reverse"), f->param_alist)), Qt); | |
2023 | ||
2024 | initial_screen_colors[0] | |
2025 | = reverse ? FRAME_BACKGROUND_PIXEL (f) : FRAME_FOREGROUND_PIXEL (f); | |
2026 | initial_screen_colors[1] | |
2027 | = reverse ? FRAME_FOREGROUND_PIXEL (f) : FRAME_BACKGROUND_PIXEL (f); | |
2028 | } | |
2029 | ||
f32d4091 | 2030 | void |
3bb1f22f | 2031 | IT_set_frame_parameters (f, alist) |
c77f6f1b | 2032 | struct frame *f; |
f32d4091 KS |
2033 | Lisp_Object alist; |
2034 | { | |
2035 | Lisp_Object tail; | |
db722735 | 2036 | int length = XINT (Flength (alist)); |
2d764c78 | 2037 | int i, j; |
db722735 RS |
2038 | Lisp_Object *parms |
2039 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2040 | Lisp_Object *values | |
2041 | = (Lisp_Object *) alloca (length * sizeof (Lisp_Object)); | |
2d764c78 EZ |
2042 | Lisp_Object qreverse = intern ("reverse"); |
2043 | /* Do we have to reverse the foreground and background colors? */ | |
2044 | int reverse = EQ (Fcdr (Fassq (qreverse, f->param_alist)), Qt); | |
2045 | int was_reverse = reverse; | |
2046 | int redraw = 0, fg_set = 0, bg_set = 0; | |
2047 | unsigned long orig_fg; | |
2048 | unsigned long orig_bg; | |
2049 | ||
2050 | /* If we are creating a new frame, begin with the original screen colors | |
2051 | used for the initial frame. */ | |
2052 | if (alist == Vdefault_frame_alist | |
2053 | && initial_screen_colors[0] != -1 && initial_screen_colors[1] != -1) | |
2054 | { | |
2055 | FRAME_FOREGROUND_PIXEL (f) = initial_screen_colors[0]; | |
2056 | FRAME_BACKGROUND_PIXEL (f) = initial_screen_colors[1]; | |
2057 | } | |
2058 | orig_fg = FRAME_FOREGROUND_PIXEL (f); | |
2059 | orig_bg = FRAME_BACKGROUND_PIXEL (f); | |
db722735 RS |
2060 | |
2061 | /* Extract parm names and values into those vectors. */ | |
2062 | i = 0; | |
f32d4091 KS |
2063 | for (tail = alist; CONSP (tail); tail = Fcdr (tail)) |
2064 | { | |
db722735 | 2065 | Lisp_Object elt; |
f32d4091 KS |
2066 | |
2067 | elt = Fcar (tail); | |
db722735 RS |
2068 | parms[i] = Fcar (elt); |
2069 | CHECK_SYMBOL (parms[i], 1); | |
2070 | values[i] = Fcdr (elt); | |
2071 | i++; | |
2072 | } | |
2073 | ||
2d764c78 | 2074 | j = i; |
db722735 | 2075 | |
2d764c78 EZ |
2076 | for (i = 0; i < j; i++) |
2077 | { | |
2078 | Lisp_Object prop = parms[i]; | |
2079 | Lisp_Object val = values[i]; | |
2080 | ||
2081 | if (EQ (prop, qreverse)) | |
2082 | reverse = EQ (val, Qt); | |
2083 | } | |
2084 | ||
2085 | if (termscript && reverse && !was_reverse) | |
2086 | fprintf (termscript, "<INVERSE-VIDEO>\n"); | |
2087 | ||
2088 | /* Now process the alist elements in reverse of specified order. */ | |
db722735 RS |
2089 | for (i--; i >= 0; i--) |
2090 | { | |
2091 | Lisp_Object prop = parms[i]; | |
2092 | Lisp_Object val = values[i]; | |
f32d4091 | 2093 | |
4e825084 | 2094 | if (EQ (prop, Qforeground_color)) |
f32d4091 | 2095 | { |
2d764c78 EZ |
2096 | unsigned long new_color = load_color (f, NULL, val, reverse |
2097 | ? LFACE_BACKGROUND_INDEX | |
2098 | : LFACE_FOREGROUND_INDEX); | |
3b620731 EZ |
2099 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2100 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2101 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2102 | { |
2d764c78 EZ |
2103 | if (reverse) |
2104 | /* FIXME: should the fore-/background of the default | |
2105 | face change here as well? */ | |
2106 | FRAME_BACKGROUND_PIXEL (f) = new_color; | |
2107 | else | |
2108 | FRAME_FOREGROUND_PIXEL (f) = new_color; | |
f32d4091 | 2109 | redraw = 1; |
2d764c78 | 2110 | fg_set = 1; |
76ac1508 | 2111 | if (termscript) |
a7cf9151 | 2112 | fprintf (termscript, "<FGCOLOR %lu>\n", new_color); |
f32d4091 KS |
2113 | } |
2114 | } | |
4e825084 | 2115 | else if (EQ (prop, Qbackground_color)) |
f32d4091 | 2116 | { |
2d764c78 EZ |
2117 | unsigned long new_color = load_color (f, NULL, val, reverse |
2118 | ? LFACE_FOREGROUND_INDEX | |
2119 | : LFACE_BACKGROUND_INDEX); | |
3b620731 EZ |
2120 | if (new_color != FACE_TTY_DEFAULT_COLOR |
2121 | && new_color != FACE_TTY_DEFAULT_FG_COLOR | |
2122 | && new_color != FACE_TTY_DEFAULT_BG_COLOR) | |
f32d4091 | 2123 | { |
2d764c78 EZ |
2124 | if (reverse) |
2125 | FRAME_FOREGROUND_PIXEL (f) = new_color; | |
2126 | else | |
2127 | FRAME_BACKGROUND_PIXEL (f) = new_color; | |
f32d4091 | 2128 | redraw = 1; |
2d764c78 | 2129 | bg_set = 1; |
76ac1508 | 2130 | if (termscript) |
a7cf9151 | 2131 | fprintf (termscript, "<BGCOLOR %lu>\n", new_color); |
f32d4091 KS |
2132 | } |
2133 | } | |
211c7152 EZ |
2134 | else if (EQ (prop, Qtitle)) |
2135 | { | |
2136 | x_set_title (f, val); | |
2137 | if (termscript) | |
2138 | fprintf (termscript, "<TITLE: %s>\n", XSTRING (val)->data); | |
2139 | } | |
db722735 | 2140 | store_frame_param (f, prop, val); |
2d764c78 | 2141 | } |
db722735 | 2142 | |
2d764c78 EZ |
2143 | /* If they specified "reverse", but not the colors, we need to swap |
2144 | the current frame colors. */ | |
2145 | if (reverse && !was_reverse) | |
2146 | { | |
2147 | if (!fg_set) | |
2148 | { | |
2149 | FRAME_BACKGROUND_PIXEL (f) = orig_fg; | |
2150 | redraw = 1; | |
2151 | } | |
2152 | if (!bg_set) | |
2153 | { | |
2154 | FRAME_FOREGROUND_PIXEL (f) = orig_bg; | |
2155 | redraw = 1; | |
2156 | } | |
f32d4091 KS |
2157 | } |
2158 | ||
2159 | if (redraw) | |
2160 | { | |
2d764c78 EZ |
2161 | face_change_count++; /* forces xdisp.c to recompute basic faces */ |
2162 | if (f == SELECTED_FRAME()) | |
3bb1f22f | 2163 | redraw_frame (f); |
f32d4091 KS |
2164 | } |
2165 | } | |
2166 | ||
a7cf9151 EZ |
2167 | extern void init_frame_faces (FRAME_PTR); |
2168 | ||
f32d4091 KS |
2169 | #endif /* !HAVE_X_WINDOWS */ |
2170 | ||
2171 | ||
48ffe371 RS |
2172 | /* Do we need the internal terminal? */ |
2173 | ||
f32d4091 KS |
2174 | void |
2175 | internal_terminal_init () | |
2176 | { | |
2177 | char *term = getenv ("TERM"); | |
2178 | char *colors; | |
2d764c78 | 2179 | struct frame *sf = SELECTED_FRAME(); |
f32d4091 KS |
2180 | |
2181 | #ifdef HAVE_X_WINDOWS | |
2182 | if (!inhibit_window_system) | |
2183 | return; | |
2184 | #endif | |
2185 | ||
2186 | internal_terminal | |
2187 | = (!noninteractive) && term && !strcmp (term, "internal"); | |
2188 | ||
2189 | if (getenv ("EMACSTEST")) | |
5063b150 | 2190 | termscript = fopen (getenv ("EMACSTEST"), "wt"); |
f32d4091 KS |
2191 | |
2192 | #ifndef HAVE_X_WINDOWS | |
2193 | if (!internal_terminal || inhibit_window_system) | |
2194 | { | |
2d764c78 | 2195 | sf->output_method = output_termcap; |
f32d4091 KS |
2196 | return; |
2197 | } | |
2198 | ||
2199 | Vwindow_system = intern ("pc"); | |
2200 | Vwindow_system_version = make_number (1); | |
2d764c78 | 2201 | sf->output_method = output_msdos_raw; |
039274cf EZ |
2202 | |
2203 | /* If Emacs was dumped on DOS/V machine, forget the stale VRAM address. */ | |
2204 | screen_old_address = 0; | |
2205 | ||
2d764c78 EZ |
2206 | /* Forget the stale screen colors as well. */ |
2207 | initial_screen_colors[0] = initial_screen_colors[1] = -1; | |
2208 | ||
f32d4091 KS |
2209 | bzero (&the_only_x_display, sizeof the_only_x_display); |
2210 | the_only_x_display.background_pixel = 7; /* White */ | |
2211 | the_only_x_display.foreground_pixel = 0; /* Black */ | |
76ac1508 | 2212 | bright_bg (); |
5063b150 | 2213 | colors = getenv ("EMACSCOLORS"); |
f32d4091 KS |
2214 | if (colors && strlen (colors) >= 2) |
2215 | { | |
76ac1508 RS |
2216 | /* The colors use 4 bits each (we enable bright background). */ |
2217 | if (isdigit (colors[0])) | |
2218 | colors[0] -= '0'; | |
2219 | else if (isxdigit (colors[0])) | |
2220 | colors[0] -= (isupper (colors[0]) ? 'A' : 'a') - 10; | |
1bd7b2c7 RS |
2221 | if (colors[0] >= 0 && colors[0] < 16) |
2222 | the_only_x_display.foreground_pixel = colors[0]; | |
76ac1508 RS |
2223 | if (isdigit (colors[1])) |
2224 | colors[1] -= '0'; | |
2225 | else if (isxdigit (colors[1])) | |
2226 | colors[1] -= (isupper (colors[1]) ? 'A' : 'a') - 10; | |
2227 | if (colors[1] >= 0 && colors[1] < 16) | |
1bd7b2c7 | 2228 | the_only_x_display.background_pixel = colors[1]; |
f32d4091 KS |
2229 | } |
2230 | the_only_x_display.line_height = 1; | |
64ec6a02 | 2231 | the_only_x_display.font = (XFontStruct *)1; /* must *not* be zero */ |
41ad069b EZ |
2232 | the_only_x_display.display_info.mouse_face_mouse_frame = NULL; |
2233 | the_only_x_display.display_info.mouse_face_deferred_gc = 0; | |
2234 | the_only_x_display.display_info.mouse_face_beg_row = | |
2235 | the_only_x_display.display_info.mouse_face_beg_col = -1; | |
2236 | the_only_x_display.display_info.mouse_face_end_row = | |
2237 | the_only_x_display.display_info.mouse_face_end_col = -1; | |
2238 | the_only_x_display.display_info.mouse_face_face_id = DEFAULT_FACE_ID; | |
2239 | the_only_x_display.display_info.mouse_face_window = Qnil; | |
2240 | the_only_x_display.display_info.mouse_face_mouse_x = | |
2241 | the_only_x_display.display_info.mouse_face_mouse_y = 0; | |
2242 | the_only_x_display.display_info.mouse_face_defer = 0; | |
f32d4091 | 2243 | |
2d764c78 | 2244 | init_frame_faces (sf); |
f32d4091 KS |
2245 | |
2246 | ring_bell_hook = IT_ring_bell; | |
aa9ce936 EZ |
2247 | insert_glyphs_hook = IT_insert_glyphs; |
2248 | delete_glyphs_hook = IT_delete_glyphs; | |
f32d4091 KS |
2249 | write_glyphs_hook = IT_write_glyphs; |
2250 | cursor_to_hook = raw_cursor_to_hook = IT_cursor_to; | |
2251 | clear_to_end_hook = IT_clear_to_end; | |
2252 | clear_end_of_line_hook = IT_clear_end_of_line; | |
2253 | clear_frame_hook = IT_clear_screen; | |
2254 | change_line_highlight_hook = IT_change_line_highlight; | |
2255 | update_begin_hook = IT_update_begin; | |
2256 | update_end_hook = IT_update_end; | |
2257 | reassert_line_highlight_hook = IT_reassert_line_highlight; | |
41ad069b | 2258 | frame_up_to_date_hook = IT_frame_up_to_date; |
f32d4091 KS |
2259 | |
2260 | /* These hooks are called by term.c without being checked. */ | |
2261 | set_terminal_modes_hook = IT_set_terminal_modes; | |
2262 | reset_terminal_modes_hook = IT_reset_terminal_modes; | |
2263 | set_terminal_window_hook = IT_set_terminal_window; | |
c77f6f1b | 2264 | char_ins_del_ok = 0; |
f32d4091 KS |
2265 | #endif |
2266 | } | |
2267 | ||
2268 | dos_get_saved_screen (screen, rows, cols) | |
2269 | char **screen; | |
2270 | int *rows; | |
2271 | int *cols; | |
2272 | { | |
2273 | #ifndef HAVE_X_WINDOWS | |
2274 | *screen = startup_screen_buffer; | |
2275 | *cols = startup_screen_size_X; | |
2276 | *rows = startup_screen_size_Y; | |
039274cf | 2277 | return *screen != (char *)0; |
f32d4091 KS |
2278 | #else |
2279 | return 0; | |
2280 | #endif | |
2281 | } | |
3bb1f22f RS |
2282 | |
2283 | #ifndef HAVE_X_WINDOWS | |
2284 | ||
2285 | /* We are not X, but we can emulate it well enough for our needs... */ | |
2286 | void | |
2287 | check_x (void) | |
2288 | { | |
2d764c78 EZ |
2289 | if (! FRAME_MSDOS_P (SELECTED_FRAME())) |
2290 | error ("Not running under a window system"); | |
3bb1f22f RS |
2291 | } |
2292 | ||
2293 | #endif | |
2294 | ||
5063b150 | 2295 | \f |
f32d4091 KS |
2296 | /* ----------------------- Keyboard control ---------------------- |
2297 | * | |
2298 | * Keymaps reflect the following keyboard layout: | |
2299 | * | |
2300 | * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS | |
2301 | * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41) | |
2302 | * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET | |
2303 | * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT | |
2304 | * SPACE | |
2305 | */ | |
2306 | ||
d1d5dc19 EZ |
2307 | #define Ignore 0x0000 |
2308 | #define Normal 0x0000 /* normal key - alt changes scan-code */ | |
2309 | #define FctKey 0x1000 /* func key if c == 0, else c */ | |
2310 | #define Special 0x2000 /* func key even if c != 0 */ | |
2311 | #define ModFct 0x3000 /* special if mod-keys, else 'c' */ | |
2312 | #define Map 0x4000 /* alt scan-code, map to unshift/shift key */ | |
2313 | #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */ | |
2314 | #define Grey 0x6000 /* Grey keypad key */ | |
2315 | ||
2316 | #define Alt 0x0100 /* alt scan-code */ | |
2317 | #define Ctrl 0x0200 /* ctrl scan-code */ | |
2318 | #define Shift 0x0400 /* shift scan-code */ | |
2319 | ||
f32d4091 KS |
2320 | static int extended_kbd; /* 101 (102) keyboard present. */ |
2321 | ||
d1d5dc19 EZ |
2322 | struct kbd_translate { |
2323 | unsigned char sc; | |
2324 | unsigned char ch; | |
2325 | unsigned short code; | |
2326 | }; | |
2327 | ||
f32d4091 KS |
2328 | struct dos_keyboard_map |
2329 | { | |
2330 | char *unshifted; | |
2331 | char *shifted; | |
2332 | char *alt_gr; | |
d1d5dc19 | 2333 | struct kbd_translate *translate_table; |
f32d4091 KS |
2334 | }; |
2335 | ||
2336 | ||
2337 | static struct dos_keyboard_map us_keyboard = { | |
2338 | /* 0 1 2 3 4 5 */ | |
2339 | /* 01234567890123456789012345678901234567890 12345678901234 */ | |
2340 | "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ", | |
2341 | /* 0123456789012345678901234567890123456789 012345678901234 */ | |
2342 | "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ", | |
d1d5dc19 EZ |
2343 | 0, /* no Alt-Gr key */ |
2344 | 0 /* no translate table */ | |
f32d4091 KS |
2345 | }; |
2346 | ||
2347 | static struct dos_keyboard_map fr_keyboard = { | |
2348 | /* 0 1 2 3 4 5 */ | |
2349 | /* 012 3456789012345678901234567890123456789012345678901234 */ | |
2350 |