Commit | Line | Data |
---|---|---|
dc6f92b8 | 1 | /* X Communication module for terminals which understand the X protocol. |
4746118a | 2 | Copyright (C) 1989, 1992 Free Software Foundation, Inc. |
dc6f92b8 JB |
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 | |
4746118a | 8 | the Free Software Foundation; either version 2, or (at your option) |
dc6f92b8 JB |
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 | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | /* Serious problems: | |
21 | ||
22 | Kludge: dup2 is used to put the X-connection socket into desc # 0 | |
23 | so that wait_reading_process_input will wait for it in place of | |
24 | actual terminal input. | |
25 | ||
26 | */ | |
27 | ||
28 | #include "config.h" | |
29 | ||
30 | #ifdef HAVE_X_WINDOWS | |
31 | ||
32 | #include "lisp.h" | |
dc6f92b8 JB |
33 | |
34 | /* On 4.3 this loses if it comes after xterm.h. */ | |
35 | #include <signal.h> | |
36 | ||
37 | /* This may include sys/types.h, and that somehow loses | |
38 | if this is not done before the other system files. */ | |
39 | #include "xterm.h" | |
40 | ||
41 | /* Load sys/types.h if not already loaded. | |
42 | In some systems loading it twice is suicidal. */ | |
43 | #ifndef makedev | |
44 | #include <sys/types.h> | |
45 | #endif | |
46 | ||
47 | #ifdef BSD | |
48 | #include <sys/ioctl.h> | |
49 | #include <strings.h> | |
50 | #else | |
51 | #include <sys/termio.h> | |
52 | #include <string.h> | |
53 | #endif | |
54 | ||
55 | /* Allow m- file to inhibit use of FIONREAD. */ | |
56 | #ifdef BROKEN_FIONREAD | |
57 | #undef FIONREAD | |
58 | #endif | |
59 | ||
60 | /* We are unable to use interrupts if FIONREAD is not available, | |
61 | so flush SIGIO so we won't try. */ | |
62 | #ifndef FIONREAD | |
63 | #ifdef SIGIO | |
64 | #undef SIGIO | |
65 | #endif | |
66 | #endif | |
67 | ||
3a2712f9 | 68 | #include "systime.h" |
dc6f92b8 JB |
69 | |
70 | #include <fcntl.h> | |
71 | #include <stdio.h> | |
72 | #include <ctype.h> | |
73 | #include <errno.h> | |
74 | #include <setjmp.h> | |
75 | #include <sys/stat.h> | |
76 | #include <sys/param.h> | |
77 | ||
78 | #include "dispextern.h" | |
79 | #include "termhooks.h" | |
80 | #include "termopts.h" | |
81 | #include "termchar.h" | |
82 | #if 0 | |
83 | #include "sink.h" | |
84 | #include "sinkmask.h" | |
85 | #endif | |
86 | #include "gnu.h" | |
87 | #include "screen.h" | |
88 | #include "disptab.h" | |
dc6f92b8 | 89 | #include "buffer.h" |
dc6f92b8 JB |
90 | |
91 | #ifdef HAVE_X11 | |
92 | #define XMapWindow XMapRaised /* Raise them when mapping. */ | |
93 | #else | |
94 | #include <X/Xkeyboard.h> | |
95 | /*#include <X/Xproto.h> */ | |
96 | #endif /* HAVE_X11 */ | |
97 | ||
98 | /* For sending Meta-characters. Do we need this? */ | |
99 | #define METABIT 0200 | |
100 | ||
101 | #define min(a,b) ((a)<(b) ? (a) : (b)) | |
102 | #define max(a,b) ((a)>(b) ? (a) : (b)) | |
103 | ||
104 | /* Nonzero means we must reprint all windows | |
105 | because 1) we received an ExposeWindow event | |
106 | or 2) we received too many ExposeRegion events to record. */ | |
107 | ||
108 | static int expose_all_windows; | |
109 | ||
110 | /* Nonzero means we must reprint all icon windows. */ | |
111 | ||
112 | static int expose_all_icons; | |
113 | ||
114 | #ifndef HAVE_X11 | |
115 | /* ExposeRegion events, when received, are copied into this queue | |
116 | for later processing. */ | |
117 | ||
118 | static struct event_queue x_expose_queue; | |
119 | ||
120 | /* ButtonPressed and ButtonReleased events, when received, | |
121 | are copied into this queue for later processing. */ | |
122 | ||
123 | struct event_queue x_mouse_queue; | |
124 | #endif | |
125 | ||
126 | /* Nonzero after BLOCK_INPUT; prevents input events from being | |
127 | processed until later. */ | |
128 | ||
129 | int x_input_blocked; | |
130 | ||
131 | #if defined (SIGIO) && defined (FIONREAD) | |
132 | int BLOCK_INPUT_mask; | |
133 | #endif | |
134 | ||
135 | /* Nonzero if input events came in while x_input_blocked was nonzero. | |
136 | UNBLOCK_INPUT checks for this. */ | |
137 | ||
138 | int x_pending_input; | |
139 | ||
140 | /* Nonzero if in redisplay (); prevents us from calling it recursively */ | |
141 | ||
142 | int in_display; | |
143 | ||
144 | /* The id of a bitmap used for icon windows. | |
145 | One such map is shared by all Emacs icon windows. | |
146 | This is zero if we have not yet had a need to create the bitmap. */ | |
147 | ||
148 | static Bitmap icon_bitmap; | |
149 | ||
150 | /* Font used for text icons. */ | |
151 | ||
152 | static FONT_TYPE *icon_font_info; | |
153 | ||
154 | /* Stuff for dealing with the main icon title. */ | |
155 | ||
156 | extern Lisp_Object Vcommand_line_args; | |
60fb3ee1 | 157 | char *hostname, *x_id_name; |
55123275 | 158 | Lisp_Object invocation_name; |
dc6f92b8 JB |
159 | |
160 | /* This is the X connection that we are using. */ | |
161 | ||
162 | Display *x_current_display; | |
163 | ||
164 | /* Screen being updated by update_screen. */ | |
165 | /* This is set by XTupdate_begin and looked at by all the | |
166 | XT functions. It is zero while not inside an update. | |
167 | In that case, the XT functions assume that `selected_screen' | |
168 | is the screen to apply to. */ | |
169 | ||
170 | static struct screen *updating_screen; | |
171 | ||
172 | /* The screen (if any) which has the X window that has keyboard focus. | |
6d4238f3 | 173 | Zero if none. This is examined by Ffocus_screen in screen.c. */ |
dc6f92b8 JB |
174 | struct screen *x_focus_screen; |
175 | ||
6d4238f3 JB |
176 | /* The screen which currently has the visual highlight, and should get |
177 | keyboard input (other sorts of input have the screen encoded in the | |
178 | event). It points to the X focus screen's selected window's | |
179 | screen. It differs from x_focus_screen when we're using a global | |
180 | minibuffer. */ | |
181 | static struct screen *x_highlight_screen; | |
182 | ||
dc6f92b8 JB |
183 | /* From .Xdefaults, the value of "emacs.WarpMouse". If non-zero, |
184 | mouse is moved to inside of screen when screen is de-iconified. */ | |
185 | ||
186 | static int warp_mouse_on_deiconify; | |
187 | ||
188 | /* During an update, maximum vpos for ins/del line operations to affect. */ | |
189 | ||
190 | static int flexlines; | |
191 | ||
192 | /* During an update, nonzero if chars output now should be highlighted. */ | |
193 | ||
194 | static int highlight; | |
195 | ||
196 | /* Nominal cursor position -- where to draw output. | |
197 | During an update, these are different from the cursor-box position. */ | |
198 | ||
199 | static int curs_x; | |
200 | static int curs_y; | |
201 | ||
202 | #ifdef HAVE_X11 | |
203 | /* `t' if a mouse button is depressed. */ | |
204 | ||
205 | extern Lisp_Object Vmouse_depressed; | |
206 | ||
207 | /* Tells if a window manager is present or not. */ | |
208 | ||
209 | extern Lisp_Object Vx_no_window_manager; | |
210 | ||
211 | /* Timestamp that we requested selection data was made. */ | |
212 | extern Time requestor_time; | |
213 | ||
214 | /* ID of the window requesting selection data. */ | |
215 | extern Window requestor_window; | |
216 | ||
217 | /* Nonzero enables some debugging for the X interface code. */ | |
218 | extern int _Xdebug; | |
219 | ||
220 | #else /* X10 stuff */ | |
221 | ||
222 | /* Bit patterns for the mouse cursor. */ | |
223 | ||
224 | short MouseCursor[] = { | |
225 | 0x0000, 0x0008, 0x0018, 0x0038, | |
226 | 0x0078, 0x00f8, 0x01f8, 0x03f8, | |
227 | 0x07f8, 0x00f8, 0x00d8, 0x0188, | |
228 | 0x0180, 0x0300, 0x0300, 0x0000}; | |
229 | ||
230 | short MouseMask[] = { | |
231 | 0x000c, 0x001c, 0x003c, 0x007c, | |
232 | 0x00fc, 0x01fc, 0x03fc, 0x07fc, | |
233 | 0x0ffc, 0x0ffc, 0x01fc, 0x03dc, | |
234 | 0x03cc, 0x0780, 0x0780, 0x0300}; | |
235 | ||
236 | static short grey_bits[] = { | |
237 | 0x0005, 0x000a, 0x0005, 0x000a}; | |
238 | ||
239 | static Pixmap GreyPixmap = 0; | |
240 | #endif /* X10 stuff */ | |
241 | ||
242 | /* From time to time we get info on an Emacs window, here. */ | |
243 | ||
244 | static WINDOWINFO_TYPE windowinfo; | |
245 | ||
246 | extern int errno; | |
247 | ||
dc6f92b8 JB |
248 | extern Display *XOpenDisplay (); |
249 | extern Window XCreateWindow (); | |
250 | ||
251 | extern Cursor XCreateCursor (); | |
252 | extern FONT_TYPE *XOpenFont (); | |
253 | ||
254 | static void flashback (); | |
255 | ||
256 | #ifndef HAVE_X11 | |
257 | static void dumpqueue (); | |
258 | #endif | |
259 | ||
260 | void dumpborder (); | |
4746118a JB |
261 | static int XTcursor_to (); |
262 | static int XTclear_end_of_line (); | |
dc6f92b8 JB |
263 | \f |
264 | /* These hooks are called by update_screen at the beginning and end | |
265 | of a screen update. We record in `updating_screen' the identity | |
266 | of the screen being updated, so that the XT... functions do not | |
267 | need to take a screen as argument. Most of the XT... functions | |
268 | should never be called except during an update, the only exceptions | |
269 | being XTcursor_to, XTwrite_char and XTreassert_line_highlight. */ | |
270 | ||
271 | extern int mouse_track_top, mouse_track_left, mouse_track_width; | |
272 | ||
273 | static | |
274 | XTupdate_begin (s) | |
275 | struct screen *s; | |
276 | { | |
277 | int mask; | |
278 | ||
279 | if (s == 0) | |
280 | abort (); | |
281 | ||
282 | updating_screen = s; | |
283 | flexlines = s->height; | |
284 | highlight = 0; | |
285 | ||
dc6f92b8 JB |
286 | BLOCK_INPUT; |
287 | #ifndef HAVE_X11 | |
288 | dumpqueue (); | |
289 | #endif | |
290 | UNBLOCK_INPUT; | |
291 | } | |
292 | ||
293 | static void x_do_pending_expose (); | |
294 | ||
295 | static | |
296 | XTupdate_end (s) | |
297 | struct screen *s; | |
298 | { | |
299 | int mask; | |
300 | ||
301 | if (updating_screen == 0 | |
302 | || updating_screen != s) | |
303 | abort (); | |
304 | ||
305 | BLOCK_INPUT; | |
306 | #ifndef HAVE_X11 | |
307 | dumpqueue (); | |
308 | #endif | |
309 | adjust_scrollbars (s); | |
310 | x_do_pending_expose (); | |
311 | ||
312 | x_display_cursor (s, 1); | |
313 | ||
314 | updating_screen = 0; | |
315 | XFlushQueue (); | |
316 | UNBLOCK_INPUT; | |
317 | } | |
318 | \f | |
319 | /* External interface to control of standout mode. | |
320 | Call this when about to modify line at position VPOS | |
321 | and not change whether it is highlighted. */ | |
322 | ||
323 | XTreassert_line_highlight (new, vpos) | |
324 | int new, vpos; | |
325 | { | |
326 | highlight = new; | |
327 | } | |
328 | ||
329 | /* Call this when about to modify line at position VPOS | |
330 | and change whether it is highlighted. */ | |
331 | ||
332 | static | |
333 | XTchange_line_highlight (new_highlight, vpos, first_unused_hpos) | |
334 | int new_highlight, vpos, first_unused_hpos; | |
335 | { | |
336 | highlight = new_highlight; | |
337 | XTcursor_to (vpos, 0); | |
338 | XTclear_end_of_line (updating_screen->width); | |
339 | } | |
340 | ||
341 | /* This is used when starting Emacs and when restarting after suspend. | |
342 | When starting Emacs, no X window is mapped. And nothing must be done | |
343 | to Emacs's own window if it is suspended (though that rarely happens). */ | |
344 | ||
345 | static | |
346 | XTset_terminal_modes () | |
347 | { | |
348 | } | |
349 | ||
350 | /* This is called when exiting or suspending Emacs. | |
351 | Exiting will make the X-windows go away, and suspending | |
352 | requires no action. */ | |
353 | ||
354 | static | |
355 | XTreset_terminal_modes () | |
356 | { | |
357 | /* XTclear_screen (); */ | |
358 | } | |
359 | \f | |
360 | /* Set the nominal cursor position of the screen: | |
361 | where display update commands will take effect. | |
362 | This does not affect the place where the cursor-box is displayed. */ | |
363 | ||
4746118a | 364 | static int |
dc6f92b8 JB |
365 | XTcursor_to (row, col) |
366 | register int row, col; | |
367 | { | |
368 | int mask; | |
369 | int orow = row; | |
370 | ||
371 | curs_x = col; | |
372 | curs_y = row; | |
373 | ||
374 | if (updating_screen == 0) | |
375 | { | |
376 | BLOCK_INPUT; | |
377 | x_display_cursor (selected_screen, 1); | |
378 | XFlushQueue (); | |
379 | UNBLOCK_INPUT; | |
380 | } | |
381 | } | |
382 | \f | |
383 | /* Display a sequence of N glyphs found at GP. | |
384 | WINDOW is the x-window to output to. LEFT and TOP are starting coords. | |
385 | HL is 1 if this text is highlighted, 2 if the cursor is on it. | |
386 | ||
387 | FONT is the default font to use (for glyphs whose font-code is 0). */ | |
388 | ||
389 | static void | |
390 | dumpglyphs (s, left, top, gp, n, hl, font) | |
391 | struct screen *s; | |
392 | int left, top; | |
393 | register GLYPH *gp; /* Points to first GLYPH. */ | |
394 | register int n; /* Number of glyphs to display. */ | |
395 | int hl; | |
396 | FONT_TYPE *font; | |
397 | { | |
dc6f92b8 JB |
398 | register int len; |
399 | Window window = s->display.x->window_desc; | |
400 | GC drawing_gc = (hl == 2 ? s->display.x->cursor_gc | |
401 | : (hl ? s->display.x->reverse_gc | |
402 | : s->display.x->normal_gc)); | |
403 | ||
c7004826 JB |
404 | if (sizeof (GLYPH) == sizeof (XChar2b)) |
405 | XDrawImageString16 (x_current_display, window, drawing_gc, | |
406 | left, top + FONT_BASE (font), (XChar2b *) gp, n); | |
407 | else if (sizeof (GLYPH) == sizeof (unsigned char)) | |
408 | XDrawImageString (x_current_display, window, drawing_gc, | |
409 | left, top + FONT_BASE (font), (char *) gp, n); | |
410 | else | |
411 | /* What size of glyph ARE you using? And does X have a function to | |
412 | draw them? */ | |
413 | abort (); | |
dc6f92b8 JB |
414 | } |
415 | ||
416 | #if 0 | |
417 | static void | |
418 | dumpglyphs (s, left, top, gp, n, hl, font) | |
419 | struct screen *s; | |
420 | int left, top; | |
421 | register GLYPH *gp; /* Points to first GLYPH. */ | |
422 | register int n; /* Number of glyphs to display. */ | |
423 | int hl; | |
424 | FONT_TYPE *font; | |
425 | { | |
426 | char buf[s->width]; /* Holds characters to be displayed. */ | |
427 | register char *cp; /* Steps through buf[]. */ | |
428 | register int tlen = GLYPH_TABLE_LENGTH; | |
429 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; | |
430 | Window window = s->display.x->window_desc; | |
431 | int cursor_pixel = s->display.x->cursor_pixel; | |
432 | int fg_pixel = s->display.x->foreground_pixel; | |
433 | int bg_pixel = s->display.x->background_pixel; | |
434 | int intborder = s->display.x->internal_border_width; | |
435 | ||
436 | while (n) | |
437 | { | |
438 | /* Get the face-code of the next GLYPH. */ | |
439 | int cf, len; | |
440 | int g = *gp; | |
441 | ||
442 | while (GLYPH_ALIAS_P (tbase, tlen, g)) | |
443 | g = GLYPH_ALIAS (tbase, g); | |
444 | ||
445 | cf = g >> 8; | |
446 | ||
447 | /* Find the run of consecutive glyphs with the same face-code. | |
448 | Extract their character codes into BUF. */ | |
449 | cp = buf; | |
450 | while (n > 0) | |
451 | { | |
452 | g = *gp; | |
453 | while (GLYPH_ALIAS_P (tbase, tlen, g)) | |
454 | g = GLYPH_ALIAS (tbase, g); | |
455 | if ((g >> 8) != cf) | |
456 | break; | |
457 | ||
458 | *cp++ = 0377 & g; | |
459 | --n; | |
460 | ++gp; | |
461 | } | |
462 | ||
463 | /* LEN gets the length of the run. */ | |
464 | len = cp - buf; | |
465 | ||
466 | /* Now output this run of chars, with the font and pixel values | |
467 | determined by the face code CF. */ | |
468 | if (cf == 0) | |
469 | { | |
470 | #ifdef HAVE_X11 | |
471 | GC GC_cursor = s->display.x->cursor_gc; | |
472 | GC GC_reverse = s->display.x->reverse_gc; | |
473 | GC GC_normal = s->display.x->normal_gc; | |
474 | ||
475 | XDrawImageString (x_current_display, window, | |
476 | (hl == 2 | |
477 | ? GC_cursor | |
478 | : (hl ? GC_reverse : GC_normal)), | |
479 | left, top + FONT_BASE (font), buf, len); | |
480 | #else | |
481 | XText (window, left, top, | |
482 | buf, | |
483 | len, | |
484 | font->id, | |
485 | (hl == 2 | |
486 | ? (cursor_pixel == fg_pixel ? bg_pixel : fg_pixel) | |
487 | : hl ? bg_pixel : fg_pixel), | |
488 | (hl == 2 ? cursor_pixel | |
489 | : hl ? fg_pixel : bg_pixel)); | |
490 | #endif /* HAVE_X11 */ | |
491 | } | |
492 | else | |
493 | { | |
494 | #ifdef HAVE_X11 | |
495 | if (FACE_IS_FONT (cf)) | |
496 | XDrawImageString (x_current_display, s->display.x->window_desc, | |
497 | FACE_GC (cf), | |
498 | left, top + FONT_BASE (FACE_FONT (cf)), | |
499 | buf, len); | |
500 | else if (FACE_IS_IMAGE (cf)) | |
501 | XCopyPlane (x_current_display, FACE_IMAGE (cf), | |
502 | s->display.x->window_desc, | |
503 | s->display.x->normal_gc, | |
504 | 0, 0, | |
505 | FACE_IMAGE_WIDTH (cf), | |
506 | FACE_IMAGE_HEIGHT (cf), left, top); | |
507 | else | |
508 | abort (); | |
509 | #else | |
510 | register struct face *fp = x_face_table[cf]; | |
511 | ||
512 | XText (window, left, top, | |
513 | buf, | |
514 | len, | |
515 | fp->font->id, | |
516 | (hl == 2 | |
517 | ? (cursor_pixel == fp->fg ? fp->bg : fp->fg) | |
518 | : hl ? fp->bg : fp->fg), | |
519 | (hl == 2 ? cursor_pixel | |
520 | : hl ? fp->fg : fp->bg)); | |
521 | #endif /* HAVE_X11 */ | |
522 | } | |
523 | left += len * FONT_WIDTH (font); | |
524 | } | |
525 | } | |
526 | #endif | |
527 | \f | |
528 | /* Output some text at the nominal screen cursor position, | |
529 | advancing the cursor over the text. | |
530 | Output LEN glyphs at START. | |
531 | ||
532 | `highlight', set up by XTreassert_line_highlight or XTchange_line_highlight, | |
533 | controls the pixel values used for foreground and background. */ | |
534 | ||
535 | static | |
536 | XTwrite_glyphs (start, len) | |
537 | register GLYPH *start; | |
538 | int len; | |
539 | { | |
540 | register int temp_length; | |
541 | int mask; | |
542 | struct screen *s; | |
543 | ||
544 | BLOCK_INPUT; | |
545 | ||
546 | s = updating_screen; | |
547 | if (s == 0) | |
548 | { | |
549 | s = selected_screen; | |
550 | /* If not within an update, | |
551 | output at the screen's visible cursor. */ | |
552 | curs_x = s->cursor_x; | |
553 | curs_y = s->cursor_y; | |
554 | } | |
555 | ||
dc6f92b8 JB |
556 | dumpglyphs (s, |
557 | (curs_x * FONT_WIDTH (s->display.x->font) | |
558 | + s->display.x->internal_border_width), | |
559 | (curs_y * FONT_HEIGHT (s->display.x->font) | |
560 | + s->display.x->internal_border_width), | |
561 | start, len, highlight, s->display.x->font); | |
90e65f07 JB |
562 | |
563 | /* If we drew on top of the cursor, note that it is turned off. */ | |
564 | if (curs_y == s->phys_cursor_y | |
565 | && curs_x <= s->phys_cursor_x | |
566 | && curs_x + len > s->phys_cursor_x) | |
567 | s->phys_cursor_x = -1; | |
dc6f92b8 JB |
568 | |
569 | if (updating_screen == 0) | |
570 | { | |
571 | s->cursor_x += len; | |
572 | x_display_cursor (s, 1); | |
573 | s->cursor_x -= len; | |
574 | } | |
575 | else | |
576 | curs_x += len; | |
577 | ||
578 | UNBLOCK_INPUT; | |
579 | } | |
580 | \f | |
581 | /* Erase the current text line from the nominal cursor position (inclusive) | |
582 | to column FIRST_UNUSED (exclusive). The idea is that everything | |
583 | from FIRST_UNUSED onward is already erased. */ | |
584 | ||
4746118a | 585 | static int |
dc6f92b8 JB |
586 | XTclear_end_of_line (first_unused) |
587 | register int first_unused; | |
588 | { | |
589 | struct screen *s = updating_screen; | |
590 | int mask; | |
591 | ||
592 | if (s == 0) | |
593 | abort (); | |
594 | ||
595 | if (curs_y < 0 || curs_y >= s->height) | |
596 | return; | |
597 | if (first_unused <= 0) | |
598 | return; | |
599 | ||
600 | if (first_unused >= s->width) | |
601 | first_unused = s->width; | |
602 | ||
603 | BLOCK_INPUT; | |
604 | ||
90e65f07 JB |
605 | /* Notice if the cursor will be cleared by this operation. */ |
606 | if (curs_y == s->phys_cursor_y | |
607 | && curs_x <= s->phys_cursor_x | |
608 | && s->phys_cursor_x < first_unused) | |
609 | s->phys_cursor_x = -1; | |
dc6f92b8 JB |
610 | |
611 | #ifdef HAVE_X11 | |
612 | XClearArea (x_current_display, s->display.x->window_desc, | |
613 | curs_x * FONT_WIDTH (s->display.x->font) | |
614 | + s->display.x->internal_border_width, | |
615 | curs_y * FONT_HEIGHT (s->display.x->font) | |
616 | + s->display.x->internal_border_width, | |
617 | FONT_WIDTH (s->display.x->font) * (first_unused - curs_x), | |
618 | FONT_HEIGHT (s->display.x->font), False); | |
619 | ||
620 | #else | |
621 | XPixSet (s->display.x->window_desc, | |
622 | curs_x * FONT_WIDTH (s->display.x->font) + s->display.x->internal_border_width, | |
623 | curs_y * FONT_HEIGHT (s->display.x->font) + s->display.x->internal_border_width, | |
624 | FONT_WIDTH (s->display.x->font) * (first_unused - curs_x), | |
625 | FONT_HEIGHT (s->display.x->font), | |
626 | s->display.x->background_pixel); | |
627 | #endif /* HAVE_X11 */ | |
628 | ||
629 | UNBLOCK_INPUT; | |
630 | } | |
631 | ||
632 | static | |
633 | XTclear_screen () | |
634 | { | |
635 | int mask; | |
636 | struct screen *s = updating_screen; | |
637 | ||
638 | if (s == 0) | |
639 | s = selected_screen; | |
640 | ||
641 | s->phys_cursor_x = -1; /* Cursor not visible. */ | |
642 | curs_x = 0; /* Nominal cursor position is top left. */ | |
643 | curs_y = 0; | |
644 | ||
645 | BLOCK_INPUT; | |
646 | XClear (s->display.x->window_desc); | |
647 | #ifndef HAVE_X11 | |
648 | dumpborder (s, 0); | |
649 | #endif | |
650 | XFlushQueue (); | |
651 | UNBLOCK_INPUT; | |
652 | } | |
653 | \f | |
654 | /* Paint horzontal bars down the screen for a visible bell. | |
655 | Note that this may be way too slow on some machines. */ | |
656 | ||
657 | XTflash (s) | |
658 | struct screen *s; | |
659 | { | |
660 | register struct screen_glyphs *active_screen = SCREEN_CURRENT_GLYPHS (s); | |
661 | register int i; | |
662 | int x, y; | |
663 | ||
664 | if (updating_screen != 0) | |
665 | abort (); | |
666 | ||
667 | BLOCK_INPUT; | |
668 | #ifdef HAVE_X11 | |
669 | #if 0 | |
670 | for (i = s->height * FONT_HEIGHT (s->display.x->font) - 10; | |
671 | i >= 0; | |
672 | i -= 100) /* Should be NO LOWER than 75 for speed reasons. */ | |
673 | XFillRectangle (x_current_display, s->display.x->window_desc, | |
674 | s->display.x->cursor_gc, | |
675 | 0, i, s->width * FONT_WIDTH (s->display.x->font) | |
676 | + 2 * s->display.x->internal_border_width, 25); | |
677 | #endif | |
678 | ||
679 | x = (s->width * FONT_WIDTH (s->display.x->font)) / 4; | |
680 | y = (s->height * FONT_HEIGHT (s->display.x->font)) / 4; | |
681 | XFillRectangle (x_current_display, s->display.x->window_desc, | |
682 | s->display.x->cursor_gc, | |
683 | x, y, 2 * x, 2 * y); | |
684 | dumpglyphs (s, (x + s->display.x->internal_border_width), | |
685 | (y + s->display.x->internal_border_width), | |
686 | &active_screen->glyphs[(s->height / 4) + 1][(s->width / 4)], | |
687 | 1, 0, s->display.x->font); | |
688 | ||
689 | #else /* X10 */ | |
690 | for (i = s->height * FONT_HEIGHT (s->display.x->font) - 10; | |
691 | i >= 0; | |
692 | i -= 50) | |
693 | XPixFill (s->display.x->window_desc, 0, i, | |
694 | s->width * FONT_WIDTH (s->display.x->font) | |
695 | + 2 * s->display.x->internal_border_width, 10, | |
696 | WHITE_PIX_DEFAULT, ClipModeClipped, GXinvert, AllPlanes); | |
697 | #endif /* X10 */ | |
698 | ||
699 | XFlushQueue (); | |
700 | UNBLOCK_INPUT; | |
701 | } | |
702 | ||
703 | /* Flip background and forground colors of the screen. */ | |
704 | ||
705 | x_invert_screen (s) | |
706 | struct screen *s; | |
707 | { | |
708 | #ifdef HAVE_X11 | |
709 | GC temp; | |
710 | unsigned long pix_temp; | |
711 | ||
712 | x_display_cursor (s, 0); | |
713 | XClearWindow (x_current_display, s->display.x->window_desc); | |
714 | temp = s->display.x->normal_gc; | |
715 | s->display.x->normal_gc = s->display.x->reverse_gc; | |
716 | s->display.x->reverse_gc = temp; | |
717 | pix_temp = s->display.x->foreground_pixel; | |
718 | s->display.x->foreground_pixel = s->display.x->background_pixel; | |
719 | s->display.x->background_pixel = pix_temp; | |
720 | ||
721 | XSetWindowBackground (x_current_display, s->display.x->window_desc, | |
722 | s->display.x->background_pixel); | |
723 | if (s->display.x->background_pixel == s->display.x->cursor_pixel) | |
724 | { | |
725 | s->display.x->cursor_pixel = s->display.x->foreground_pixel; | |
726 | XSetBackground (x_current_display, s->display.x->cursor_gc, | |
727 | s->display.x->cursor_pixel); | |
728 | XSetForeground (x_current_display, s->display.x->cursor_gc, | |
729 | s->display.x->background_pixel); | |
730 | } | |
731 | redraw_screen (s); | |
732 | #endif /* X11 */ | |
733 | } | |
734 | ||
735 | /* Make audible bell. */ | |
736 | ||
737 | #ifdef HAVE_X11 | |
738 | #define XRINGBELL XBell(x_current_display, 0) | |
739 | #else | |
740 | #define XRINGBELL XFeep(0); | |
741 | #endif | |
742 | ||
743 | XTring_bell () | |
744 | { | |
745 | if (visible_bell) | |
746 | #if 0 | |
747 | XTflash (selected_screen); | |
748 | #endif | |
749 | { | |
750 | x_invert_screen (selected_screen); | |
751 | x_invert_screen (selected_screen); | |
752 | } | |
753 | else | |
754 | { | |
755 | BLOCK_INPUT; | |
756 | XRINGBELL; | |
757 | XFlushQueue (); | |
758 | UNBLOCK_INPUT; | |
759 | } | |
760 | } | |
761 | \f | |
762 | /* Insert and delete character are not supposed to be used | |
763 | because we are supposed to turn off the feature of using them. */ | |
764 | ||
765 | static | |
766 | XTinsert_glyphs (start, len) | |
767 | register char *start; | |
768 | register int len; | |
769 | { | |
770 | abort (); | |
771 | } | |
772 | ||
773 | static | |
774 | XTdelete_glyphs (n) | |
775 | register int n; | |
776 | { | |
777 | abort (); | |
778 | } | |
779 | \f | |
780 | /* Specify how many text lines, from the top of the window, | |
781 | should be affected by insert-lines and delete-lines operations. | |
782 | This, and those operations, are used only within an update | |
783 | that is bounded by calls to XTupdate_begin and XTupdate_end. */ | |
784 | ||
785 | static | |
786 | XTset_terminal_window (n) | |
787 | register int n; | |
788 | { | |
789 | if (updating_screen == 0) | |
790 | abort (); | |
791 | ||
792 | if ((n <= 0) || (n > updating_screen->height)) | |
793 | flexlines = updating_screen->height; | |
794 | else | |
795 | flexlines = n; | |
796 | } | |
797 | \f | |
798 | /* Perform an insert-lines operation, inserting N lines | |
799 | at a vertical position curs_y. */ | |
800 | ||
801 | static void | |
802 | stufflines (n) | |
803 | register int n; | |
804 | { | |
805 | register int topregion, bottomregion; | |
806 | register int length, newtop, mask; | |
807 | register struct screen *s = updating_screen; | |
808 | int intborder = s->display.x->internal_border_width; | |
809 | ||
810 | if (curs_y >= flexlines) | |
811 | return; | |
812 | ||
813 | topregion = curs_y; | |
814 | bottomregion = flexlines - (n + 1); | |
815 | newtop = topregion + n; | |
816 | length = (bottomregion - topregion) + 1; | |
817 | ||
818 | #ifndef HAVE_X11 | |
819 | dumpqueue (); | |
820 | #endif | |
821 | ||
822 | if ((length > 0) && (newtop <= flexlines)) | |
823 | { | |
824 | #ifdef HAVE_X11 | |
825 | XCopyArea (x_current_display, s->display.x->window_desc, | |
826 | s->display.x->window_desc, s->display.x->normal_gc, | |
827 | intborder, topregion * FONT_HEIGHT (s->display.x->font) + intborder, | |
828 | s->width * FONT_WIDTH (s->display.x->font), | |
829 | length * FONT_HEIGHT (s->display.x->font), intborder, | |
830 | newtop * FONT_HEIGHT (s->display.x->font) + intborder); | |
831 | #else | |
832 | XMoveArea (s->display.x->window_desc, | |
833 | intborder, topregion * FONT_HEIGHT (s->display.x->font) + intborder, | |
834 | intborder, newtop * FONT_HEIGHT (s->display.x->font) + intborder, | |
835 | s->width * FONT_WIDTH (s->display.x->font), | |
836 | length * FONT_HEIGHT (s->display.x->font)); | |
837 | /* Now we must process any ExposeRegion events that occur | |
838 | if the area being copied from is obscured. | |
839 | We can't let it wait because further i/d operations | |
840 | may want to copy this area to another area. */ | |
841 | x_read_exposes (); | |
842 | #endif /* HAVE_X11 */ | |
843 | } | |
844 | ||
845 | newtop = min (newtop, (flexlines - 1)); | |
846 | length = newtop - topregion; | |
847 | if (length > 0) | |
848 | { | |
849 | #ifdef HAVE_X11 | |
850 | XClearArea (x_current_display, s->display.x->window_desc, intborder, | |
851 | topregion * FONT_HEIGHT (s->display.x->font) + intborder, | |
852 | s->width * FONT_WIDTH (s->display.x->font), | |
853 | n * FONT_HEIGHT (s->display.x->font), False); | |
854 | #else | |
855 | XPixSet (s->display.x->window_desc, | |
856 | intborder, | |
857 | topregion * FONT_HEIGHT (s->display.x->font) + intborder, | |
858 | s->width * FONT_WIDTH (s->display.x->font), | |
859 | n * FONT_HEIGHT (s->display.x->font), | |
860 | s->display.x->background_pixel); | |
861 | #endif /* HAVE_X11 */ | |
862 | } | |
863 | } | |
864 | ||
865 | /* Perform a delete-lines operation, deleting N lines | |
866 | at a vertical position curs_y. */ | |
867 | ||
868 | static void | |
869 | scraplines (n) | |
870 | register int n; | |
871 | { | |
872 | int mask; | |
873 | register struct screen *s = updating_screen; | |
874 | int intborder = s->display.x->internal_border_width; | |
875 | ||
876 | if (curs_y >= flexlines) | |
877 | return; | |
878 | ||
879 | #ifndef HAVE_X11 | |
880 | dumpqueue (); | |
881 | #endif | |
882 | ||
883 | if ((curs_y + n) >= flexlines) | |
884 | { | |
885 | if (flexlines >= (curs_y + 1)) | |
886 | { | |
887 | #ifdef HAVE_X11 | |
888 | XClearArea (x_current_display, s->display.x->window_desc, intborder, | |
889 | curs_y * FONT_HEIGHT (s->display.x->font) + intborder, | |
890 | s->width * FONT_WIDTH (s->display.x->font), | |
891 | (flexlines - curs_y) * FONT_HEIGHT (s->display.x->font), False); | |
892 | #else | |
893 | XPixSet (s->display.x->window_desc, | |
894 | intborder, curs_y * FONT_HEIGHT (s->display.x->font) + intborder, | |
895 | s->width * FONT_WIDTH (s->display.x->font), | |
896 | (flexlines - curs_y) * FONT_HEIGHT (s->display.x->font), | |
897 | s->display.x->background_pixel); | |
898 | #endif /* HAVE_X11 */ | |
899 | } | |
900 | } | |
901 | else | |
902 | { | |
903 | #ifdef HAVE_X11 | |
904 | XCopyArea (x_current_display, s->display.x->window_desc, | |
905 | s->display.x->window_desc, s->display.x->normal_gc, | |
906 | intborder, | |
907 | (curs_y + n) * FONT_HEIGHT (s->display.x->font) + intborder, | |
908 | s->width * FONT_WIDTH (s->display.x->font), | |
909 | (flexlines - (curs_y + n)) * FONT_HEIGHT (s->display.x->font), | |
910 | intborder, curs_y * FONT_HEIGHT (s->display.x->font) + intborder); | |
911 | XClearArea (x_current_display, s->display.x->window_desc, | |
912 | intborder, | |
913 | (flexlines - n) * FONT_HEIGHT (s->display.x->font) + intborder, | |
914 | s->width * FONT_WIDTH (s->display.x->font), | |
915 | n * FONT_HEIGHT (s->display.x->font), False); | |
916 | #else | |
917 | XMoveArea (s->display.x->window_desc, | |
918 | intborder, | |
919 | (curs_y + n) * FONT_HEIGHT (s->display.x->font) + intborder, | |
920 | intborder, curs_y * FONT_HEIGHT (s->display.x->font) + intborder, | |
921 | s->width * FONT_WIDTH (s->display.x->font), | |
922 | (flexlines - (curs_y + n)) * FONT_HEIGHT (s->display.x->font)); | |
923 | /* Now we must process any ExposeRegion events that occur | |
924 | if the area being copied from is obscured. | |
925 | We can't let it wait because further i/d operations | |
926 | may want to copy this area to another area. */ | |
927 | x_read_exposes (); | |
928 | XPixSet (s->display.x->window_desc, intborder, | |
929 | (flexlines - n) * FONT_HEIGHT (s->display.x->font) + intborder, | |
930 | s->width * FONT_WIDTH (s->display.x->font), | |
931 | n * FONT_HEIGHT (s->display.x->font), s->display.x->background_pixel); | |
932 | #endif /* HAVE_X11 */ | |
933 | } | |
934 | } | |
935 | ||
936 | /* Perform an insert-lines or delete-lines operation, | |
937 | inserting N lines or deleting -N lines at vertical position VPOS. */ | |
938 | ||
939 | XTins_del_lines (vpos, n) | |
940 | int vpos, n; | |
941 | { | |
942 | if (updating_screen == 0) | |
943 | abort (); | |
944 | ||
90e65f07 | 945 | /* Hide the cursor. */ |
dc6f92b8 JB |
946 | x_display_cursor (updating_screen, 0); |
947 | ||
948 | XTcursor_to (vpos, 0); | |
949 | ||
950 | BLOCK_INPUT; | |
951 | if (n >= 0) | |
952 | stufflines (n); | |
953 | else | |
954 | scraplines (-n); | |
955 | XFlushQueue (); | |
956 | UNBLOCK_INPUT; | |
957 | } | |
958 | \f | |
959 | static void clear_cursor (); | |
960 | ||
961 | /* Output into a rectangle of an X-window (for screen S) | |
962 | the characters in s->phys_lines that overlap that rectangle. | |
963 | TOP and LEFT are the position of the upper left corner of the rectangle. | |
964 | ROWS and COLS are the size of the rectangle. */ | |
965 | ||
966 | static void | |
967 | dumprectangle (s, left, top, cols, rows) | |
968 | struct screen *s; | |
969 | register int left, top, cols, rows; | |
970 | { | |
971 | register struct screen_glyphs *active_screen = SCREEN_CURRENT_GLYPHS (s); | |
972 | int cursor_cleared = 0; | |
973 | int bottom, right; | |
974 | register int y; | |
975 | ||
976 | if (SCREEN_GARBAGED_P (s)) | |
977 | return; | |
978 | ||
979 | top -= s->display.x->internal_border_width; | |
980 | left -= s->display.x->internal_border_width; | |
981 | ||
982 | /* Express rectangle as four edges, instead of position-and-size. */ | |
983 | bottom = top + rows; | |
984 | right = left + cols; | |
985 | ||
986 | #ifndef HAVE_X11 /* Window manger does this for X11. */ | |
987 | /* If the rectangle includes any of the internal border area, | |
988 | redisplay the border emphasis. */ | |
989 | if (top < 0 || left < 0 | |
990 | || bottom > s->height * FONT_HEIGHT (s->display.x->font) | |
991 | || right > s->width * FONT_WIDTH (s->display.x->font)) | |
992 | dumpborder (s, 0); | |
993 | #endif /* HAVE_X11 */ | |
994 | ||
995 | /* Convert rectangle edges in pixels to edges in chars. | |
996 | Round down for left and top, up for right and bottom. */ | |
997 | top /= FONT_HEIGHT (s->display.x->font); | |
998 | left /= FONT_WIDTH (s->display.x->font); | |
999 | bottom += (FONT_HEIGHT (s->display.x->font) - 1); | |
1000 | right += (FONT_WIDTH (s->display.x->font) - 1); | |
1001 | bottom /= FONT_HEIGHT (s->display.x->font); | |
1002 | right /= FONT_WIDTH (s->display.x->font); | |
1003 | ||
1004 | /* Clip the rectangle to what can be visible. */ | |
1005 | if (left < 0) | |
1006 | left = 0; | |
1007 | if (top < 0) | |
1008 | top = 0; | |
1009 | if (right > s->width) | |
1010 | right = s->width; | |
1011 | if (bottom > s->height) | |
1012 | bottom = s->height; | |
1013 | ||
1014 | /* Get size in chars of the rectangle. */ | |
1015 | cols = right - left; | |
1016 | rows = bottom - top; | |
1017 | ||
1018 | /* If rectangle has zero area, return. */ | |
1019 | if (rows <= 0) return; | |
1020 | if (cols <= 0) return; | |
1021 | ||
1022 | /* Turn off the cursor if it is in the rectangle. | |
1023 | We will turn it back on afterward. */ | |
1024 | if ((s->phys_cursor_x >= left) && (s->phys_cursor_x < right) | |
1025 | && (s->phys_cursor_y >= top) && (s->phys_cursor_y < bottom)) | |
1026 | { | |
1027 | clear_cursor (s); | |
1028 | cursor_cleared = 1; | |
1029 | } | |
1030 | ||
1031 | /* Display the text in the rectangle, one text line at a time. */ | |
1032 | ||
1033 | for (y = top; y < bottom; y++) | |
1034 | { | |
1035 | GLYPH *line = &active_screen->glyphs[y][left]; | |
1036 | ||
1037 | if (! active_screen->enable[y] || left > active_screen->used[y]) | |
1038 | continue; | |
1039 | ||
1040 | dumpglyphs (s, | |
1041 | (left * FONT_WIDTH (s->display.x->font) | |
1042 | + s->display.x->internal_border_width), | |
1043 | (y * FONT_HEIGHT (s->display.x->font) | |
1044 | + s->display.x->internal_border_width), | |
1045 | line, min (cols, active_screen->used[y] - left), | |
1046 | active_screen->highlight[y], s->display.x->font); | |
1047 | } | |
1048 | ||
1049 | /* Turn the cursor on if we turned it off. */ | |
1050 | ||
1051 | if (cursor_cleared) | |
1052 | x_display_cursor (s, 1); | |
dc6f92b8 JB |
1053 | } |
1054 | ||
1055 | #ifndef HAVE_X11 | |
1056 | /* Process all queued ExposeRegion events. */ | |
1057 | ||
1058 | static void | |
1059 | dumpqueue () | |
1060 | { | |
1061 | register int i; | |
1062 | XExposeRegionEvent r; | |
1063 | ||
1064 | while (dequeue_event (&r, &x_expose_queue)) | |
1065 | { | |
1066 | struct screen *s = x_window_to_screen (r.window); | |
1067 | if (s->display.x->icon_desc == r.window) | |
1068 | refreshicon (s); | |
1069 | else | |
1070 | dumprectangle (s, r.x, r.y, r.width, r.height); | |
1071 | } | |
1072 | XFlushQueue (); | |
1073 | } | |
1074 | #endif | |
1075 | \f | |
1076 | /* Process all expose events that are pending. | |
1077 | Redraws the cursor if necessary on any screen that | |
1078 | is not in the process of being updated with update_screen. */ | |
1079 | ||
1080 | static void | |
1081 | x_do_pending_expose () | |
1082 | { | |
1083 | int mask; | |
1084 | struct screen *s; | |
1085 | Lisp_Object tail, screen; | |
1086 | ||
1087 | if (expose_all_windows) | |
1088 | { | |
1089 | expose_all_windows = 0; | |
1090 | for (tail = Vscreen_list; CONSP (tail); tail = XCONS (tail)->cdr) | |
1091 | { | |
1092 | register int temp_width, temp_height; | |
1093 | int intborder; | |
1094 | ||
1095 | screen = XCONS (tail)->car; | |
1096 | if (XTYPE (screen) != Lisp_Screen) | |
1097 | continue; | |
1098 | s = XSCREEN (screen); | |
90e65f07 | 1099 | if (! SCREEN_IS_X (s)) |
dc6f92b8 JB |
1100 | continue; |
1101 | if (!s->visible) | |
1102 | continue; | |
1103 | if (!s->display.x->needs_exposure) | |
1104 | continue; | |
1105 | ||
1106 | intborder = s->display.x->internal_border_width; | |
1107 | ||
1108 | clear_cursor (s); | |
1109 | XGetWindowInfo (s->display.x->window_desc, &windowinfo); | |
1110 | temp_width = ((windowinfo.width - 2 * intborder | |
1111 | - s->display.x->v_scrollbar_width) | |
1112 | / FONT_WIDTH (s->display.x->font)); | |
1113 | temp_height = ((windowinfo.height- 2 * intborder | |
1114 | - s->display.x->h_scrollbar_height) | |
1115 | / FONT_HEIGHT (s->display.x->font)); | |
1116 | if (temp_width != s->width || temp_height != s->height) | |
1117 | { | |
1118 | change_screen_size (s, max (1, temp_height), | |
1119 | max (1, temp_width), 0); | |
1120 | x_resize_scrollbars (s); | |
1121 | } | |
1122 | s->display.x->left_pos = windowinfo.x; | |
1123 | s->display.x->top_pos = windowinfo.y; | |
1124 | dumprectangle (s, 0, 0, PIXEL_WIDTH (s), PIXEL_HEIGHT (s)); | |
1125 | #if 0 | |
1126 | dumpborder (s, 0); | |
1127 | #endif | |
1128 | s->display.x->needs_exposure = 0; | |
1129 | if (updating_screen != s) | |
1130 | x_display_cursor (s, 1); | |
1131 | XFlushQueue (); | |
1132 | } | |
1133 | } | |
1134 | else | |
1135 | /* Handle any individual-rectangle expose events queued | |
1136 | for various windows. */ | |
1137 | #ifdef HAVE_X11 | |
1138 | ; | |
1139 | #else | |
1140 | dumpqueue (); | |
1141 | #endif | |
1142 | } | |
1143 | ||
1144 | #ifdef HAVE_X11 | |
1145 | static void | |
1146 | screen_highlight (screen) | |
1147 | struct screen *screen; | |
1148 | { | |
1149 | if (! EQ (Vx_no_window_manager, Qnil)) | |
1150 | XSetWindowBorder (x_current_display, screen->display.x->window_desc, | |
1151 | screen->display.x->border_pixel); | |
1152 | x_display_cursor (screen, 1); | |
1153 | } | |
1154 | ||
1155 | static void | |
1156 | screen_unhighlight (screen) | |
1157 | struct screen *screen; | |
1158 | { | |
1159 | if (! EQ (Vx_no_window_manager, Qnil)) | |
1160 | XSetWindowBorderPixmap (x_current_display, screen->display.x->window_desc, | |
1161 | screen->display.x->border_tile); | |
1162 | x_display_cursor (screen, 1); | |
1163 | } | |
1164 | #else /* X10 */ | |
1165 | /* Dump the border-emphasis of screen S. | |
1166 | If S is selected, this is a lining of the same color as the border, | |
1167 | just within the border, occupying a portion of the internal border. | |
1168 | If S is not selected, it is background in the same place. | |
1169 | If ALWAYS is 0, don't bother explicitly drawing if it's background. | |
1170 | ||
1171 | ALWAYS = 1 is used when a screen becomes selected or deselected. | |
1172 | In that case, we also turn the cursor off and on again | |
1173 | so it will appear in the proper shape (solid if selected; else hollow.) */ | |
1174 | ||
1175 | static void | |
1176 | dumpborder (s, always) | |
1177 | struct screen *s; | |
1178 | int always; | |
1179 | { | |
1180 | int thickness = s->display.x->internal_border_width / 2; | |
1181 | int width = PIXEL_WIDTH (s); | |
1182 | int height = PIXEL_HEIGHT (s); | |
1183 | int pixel; | |
1184 | ||
1185 | if (s != selected_screen) | |
1186 | { | |
1187 | if (!always) | |
1188 | return; | |
1189 | ||
1190 | pixel = s->display.x->background_pixel; | |
1191 | } | |
1192 | else | |
1193 | { | |
1194 | pixel = s->display.x->border_pixel; | |
1195 | } | |
1196 | ||
1197 | XPixSet (s->display.x->window_desc, 0, 0, width, thickness, pixel); | |
1198 | XPixSet (s->display.x->window_desc, 0, 0, thickness, height, pixel); | |
1199 | XPixSet (s->display.x->window_desc, 0, height - thickness, width, | |
1200 | thickness, pixel); | |
1201 | XPixSet (s->display.x->window_desc, width - thickness, 0, thickness, | |
1202 | height, pixel); | |
1203 | ||
1204 | if (always) | |
1205 | x_display_cursor (s, 1); | |
1206 | } | |
1207 | #endif /* X10 */ | |
1208 | ||
6d4238f3 JB |
1209 | static void XTscreen_rehighlight (); |
1210 | ||
dc6f92b8 JB |
1211 | /* The focus has changed. Update the screens as necessary to reflect |
1212 | the new situation. Note that we can't change the selected screen | |
1213 | here, because the lisp code we are interrupting might become confused. | |
6d4238f3 JB |
1214 | Each event gets marked with the screen in which it occured, so the |
1215 | lisp code can tell when the switch took place by examining the events. */ | |
dc6f92b8 | 1216 | |
6d4238f3 JB |
1217 | static void |
1218 | x_new_focus_screen (screen) | |
dc6f92b8 | 1219 | struct screen *screen; |
dc6f92b8 JB |
1220 | { |
1221 | struct screen *old_focus = x_focus_screen; | |
1222 | int events_enqueued = 0; | |
1223 | ||
6d4238f3 | 1224 | if (screen != x_focus_screen) |
dc6f92b8 | 1225 | { |
6d4238f3 JB |
1226 | /* Set this before calling other routines, so that they see |
1227 | the correct value of x_focus_screen. */ | |
1228 | x_focus_screen = screen; | |
1229 | ||
1230 | if (old_focus && old_focus->auto_lower) | |
dc6f92b8 | 1231 | x_lower_screen (old_focus); |
dc6f92b8 JB |
1232 | |
1233 | #if 0 | |
6d4238f3 JB |
1234 | selected_screen = screen; |
1235 | XSET (XWINDOW (selected_screen->selected_window)->screen, | |
1236 | Lisp_Screen, selected_screen); | |
1237 | Fselect_window (selected_screen->selected_window); | |
1238 | choose_minibuf_screen (); | |
dc6f92b8 JB |
1239 | #endif |
1240 | ||
6d4238f3 | 1241 | if (x_focus_screen && x_focus_screen->auto_raise) |
dc6f92b8 | 1242 | x_raise_screen (x_focus_screen); |
6d4238f3 | 1243 | } |
dc6f92b8 | 1244 | |
6d4238f3 JB |
1245 | XTscreen_rehighlight (); |
1246 | } | |
1247 | ||
1248 | ||
1249 | /* The focus has changed, or we have make a screen's selected window | |
1250 | point to a window on a different screen (this happens with global | |
1251 | minibuffer screens). Shift the highlight as appropriate. */ | |
1252 | static void | |
1253 | XTscreen_rehighlight () | |
1254 | { | |
1255 | struct screen *old_highlight = x_highlight_screen; | |
1256 | ||
1257 | if (x_focus_screen) | |
1258 | { | |
1259 | x_highlight_screen = XSCREEN (SCREEN_FOCUS_SCREEN (x_focus_screen)); | |
1260 | if (x_highlight_screen->display.nothing == 0) | |
1261 | XSET (SCREEN_FOCUS_SCREEN (x_focus_screen), Lisp_Screen, | |
1262 | (x_highlight_screen = x_focus_screen)); | |
dc6f92b8 | 1263 | } |
6d4238f3 JB |
1264 | else |
1265 | x_highlight_screen = 0; | |
dc6f92b8 | 1266 | |
6d4238f3 JB |
1267 | if (x_highlight_screen != old_highlight) |
1268 | { | |
1269 | if (old_highlight) | |
1270 | screen_unhighlight (old_highlight); | |
1271 | if (x_highlight_screen) | |
1272 | screen_highlight (x_highlight_screen); | |
1273 | } | |
dc6f92b8 JB |
1274 | } |
1275 | \f | |
1276 | enum window_type | |
1277 | { | |
1278 | no_window, | |
1279 | scrollbar_window, | |
1280 | text_window, | |
1281 | }; | |
1282 | ||
dc6f92b8 JB |
1283 | /* Position of the mouse in characters */ |
1284 | unsigned int x_mouse_x, x_mouse_y; | |
1285 | ||
dc6f92b8 JB |
1286 | /* Offset in buffer of character under the pointer, or 0. */ |
1287 | extern int mouse_buffer_offset; | |
1288 | ||
dc6f92b8 JB |
1289 | extern int buffer_posn_from_coords (); |
1290 | ||
1291 | /* Symbols from xfns.c to denote the different parts of a window. */ | |
1292 | extern Lisp_Object Qmodeline_part, Qtext_part; | |
1293 | ||
1294 | #if 0 | |
1295 | /* Set *RESULT to an emacs input_event corresponding to MOTION_EVENT. | |
1296 | S is the screen in which the event occurred. | |
1297 | ||
1298 | WINDOW_TYPE says whether the event happened in a scrollbar window | |
1299 | or a text window, affecting the format of the event created. | |
1300 | ||
1301 | PART specifies which part of the scrollbar the event happened in, | |
1302 | if WINDOW_TYPE == scrollbar_window. | |
1303 | ||
1304 | If the mouse is over the same character as the last time we checked, | |
1305 | don't return an event; set result->kind to no_event. */ | |
1306 | ||
1307 | static void | |
1308 | notice_mouse_movement (result, motion_event, s, window_type, part) | |
1309 | struct input_event *result; | |
1310 | XMotionEvent motion_event; | |
1311 | struct screen *s; | |
1312 | int window_type; | |
1313 | Lisp_Object part; | |
1314 | { | |
1315 | int x, y, root_x, root_y, pix_x, pix_y; | |
1316 | unsigned int keys_and_buttons; | |
1317 | Window w, root_window; | |
1318 | ||
1319 | /* Unless we decide otherwise below, return a non-event. */ | |
1320 | result->kind = no_event; | |
1321 | ||
1322 | if (XQueryPointer (x_current_display, | |
1323 | s->display.x->window_desc, | |
1324 | &root_window, &w, | |
1325 | &root_x, &root_y, &pix_x, &pix_y, | |
1326 | &keys_and_buttons) | |
1327 | == False) | |
1328 | return; | |
1329 | ||
1330 | #if 0 | |
1331 | if (w == None) /* Mouse no longer in window. */ | |
1332 | return Qnil; | |
1333 | #endif | |
1334 | ||
1335 | pixel_to_glyph_translation (s, pix_x, pix_y, &x, &y); | |
1336 | if (x == x_mouse_x && y == x_mouse_y) | |
1337 | return; | |
1338 | ||
1339 | x_mouse_x = x; | |
1340 | x_mouse_y = y; | |
1341 | ||
1342 | /* What sort of window are we in now? */ | |
1343 | if (window_type == text_window) /* Text part */ | |
1344 | { | |
1345 | int modeline_p; | |
1346 | ||
1347 | Vmouse_window = window_from_coordinates (s, x, y, &modeline_p); | |
1348 | ||
1349 | if (XTYPE (Vmouse_window) == Lisp_Window) | |
1350 | mouse_buffer_offset | |
1351 | = buffer_posn_from_coords (XWINDOW (Vmouse_window), x, y); | |
1352 | else | |
1353 | mouse_buffer_offset = 0; | |
1354 | ||
1355 | if (EQ (Vmouse_window, Qnil)) | |
1356 | Vmouse_screen_part = Qnil; | |
1357 | else if (modeline_p) | |
1358 | Vmouse_screen_part = Qmodeline_part; | |
1359 | else | |
1360 | Vmouse_screen_part = Qtext_part; | |
1361 | ||
1362 | result->kind = window_sys_event; | |
1363 | result->code = Qmouse_moved; | |
1364 | ||
1365 | return; | |
1366 | } | |
1367 | else if (window_type == scrollbar_window) /* Scrollbar */ | |
1368 | { | |
1369 | Vmouse_window = s->selected_window; | |
1370 | mouse_buffer_offset = 0; | |
1371 | Vmouse_screen_part = part; | |
1372 | ||
1373 | result->kind = window_sys_event; | |
1374 | result->code = Qmouse_moved; | |
1375 | ||
1376 | return; | |
1377 | } | |
1378 | ||
1379 | return; | |
1380 | } | |
1381 | #endif | |
1382 | ||
90e65f07 JB |
1383 | \f |
1384 | /* Mouse clicks and mouse movement. Rah. */ | |
1385 | #ifdef HAVE_X11 | |
1386 | ||
1387 | /* Given a pixel position (PIX_X, PIX_Y) on the screen S, return | |
1388 | glyph co-ordinates in (*X, *Y). Set *BOUNDS to the rectangle | |
1389 | that the glyph at X, Y occupies, if BOUNDS != 0. */ | |
1390 | static void | |
1391 | pixel_to_glyph_coords (s, pix_x, pix_y, x, y, bounds) | |
dc6f92b8 JB |
1392 | SCREEN_PTR s; |
1393 | register unsigned int pix_x, pix_y; | |
1394 | register int *x, *y; | |
90e65f07 | 1395 | XRectangle *bounds; |
dc6f92b8 | 1396 | { |
dc6f92b8 | 1397 | int ibw = s->display.x->internal_border_width; |
90e65f07 JB |
1398 | int width, height; |
1399 | FONT_TYPE *font = s->display.x->font; | |
1400 | ||
1401 | width = FONT_WIDTH (font); | |
1402 | height = FONT_HEIGHT (font); | |
dc6f92b8 JB |
1403 | |
1404 | /* What line is it on? */ | |
90e65f07 JB |
1405 | if (pix_y < ibw) |
1406 | *y = 0; | |
1407 | else if (pix_y > s->display.x->pixel_height - ibw) | |
1408 | *y = SCREEN_HEIGHT (s) - 1; | |
1409 | else | |
1410 | *y = (pix_y - ibw) / height; | |
dc6f92b8 | 1411 | |
90e65f07 | 1412 | /* And what column? */ |
dc6f92b8 JB |
1413 | if (pix_x < ibw) |
1414 | *x = 0; | |
dc6f92b8 JB |
1415 | else if (pix_x > s->display.x->pixel_width - ibw) |
1416 | *x = SCREEN_WIDTH (s) - 1; | |
dc6f92b8 | 1417 | else |
90e65f07 JB |
1418 | *x = (pix_x - ibw) / width; |
1419 | ||
1420 | if (bounds) | |
1421 | { | |
1422 | bounds->width = width; | |
1423 | bounds->height = height; | |
1424 | bounds->x = ibw + (*x * width); | |
1425 | bounds->y = ibw + (*y * height); | |
1426 | } | |
dc6f92b8 | 1427 | } |
dc6f92b8 JB |
1428 | |
1429 | /* Any buttons grabbed. */ | |
1430 | unsigned int x_mouse_grabbed; | |
1431 | ||
1432 | /* Convert a set of X modifier bits to the proper form for a | |
1433 | struct input_event modifiers value. */ | |
1434 | ||
1435 | static Lisp_Object | |
1436 | x_convert_modifiers (state) | |
1437 | unsigned int state; | |
1438 | { | |
1439 | return ( ((state & (ShiftMask | LockMask)) ? shift_modifier : 0) | |
1440 | | ((state & ControlMask) ? ctrl_modifier : 0) | |
1441 | | ((state & Mod1Mask) ? meta_modifier : 0)); | |
1442 | } | |
1443 | ||
1444 | extern struct screen *x_window_to_scrollbar (); | |
1445 | extern Lisp_Object Vmouse_event; | |
1446 | ||
1447 | /* Prepare a mouse-event in *RESULT for placement in the input queue. | |
1448 | ||
1449 | If the event is a button press, then note that we have grabbed | |
1450 | the mouse. | |
1451 | ||
1452 | If PART and PREFIX are 0, then the event occurred in the text part; | |
1453 | otherwise it happened in a scrollbar. */ | |
1454 | ||
1455 | static Lisp_Object | |
1456 | construct_mouse_click (result, event, s, part, prefix) | |
1457 | struct input_event *result; | |
1458 | XButtonEvent *event; | |
1459 | struct screen *s; | |
1460 | int prefix; | |
1461 | Lisp_Object part; | |
1462 | { | |
1463 | /* Initialize those fields text and scrollbar clicks hold in common. | |
1464 | Make the event type no_event; we'll change that when we decide | |
1465 | otherwise. */ | |
1466 | result->kind = no_event; | |
1467 | XSET (result->code, Lisp_Int, event->button); | |
90e65f07 | 1468 | XSET (result->timestamp, Lisp_Int, event->time); |
dc6f92b8 JB |
1469 | result->modifiers = (x_convert_modifiers (event->state) |
1470 | | (event->type == ButtonRelease ? up_modifier : 0)); | |
1471 | XSET (result->timestamp, Lisp_Int, (event->time & 0x7fffff)); | |
1472 | ||
1473 | /* Notice if the mouse is still grabbed. */ | |
1474 | if (event->type == ButtonPress) | |
1475 | { | |
1476 | if (! x_mouse_grabbed) | |
1477 | Vmouse_depressed = Qt; | |
90e65f07 | 1478 | x_mouse_grabbed |= (1 << event->button); |
dc6f92b8 JB |
1479 | } |
1480 | else if (event->type == ButtonRelease) | |
1481 | { | |
90e65f07 | 1482 | x_mouse_grabbed &= ~(1 << event->button); |
dc6f92b8 JB |
1483 | if (!x_mouse_grabbed) |
1484 | Vmouse_depressed = Qnil; | |
1485 | } | |
1486 | ||
1487 | if (part) /* Scrollbar event */ | |
1488 | { | |
1489 | int pos, len; | |
1490 | ||
1491 | pos = event->y - (s->display.x->v_scrollbar_width - 2); | |
1492 | XSET (x_mouse_x, Lisp_Int, pos); | |
1493 | len = ((FONT_HEIGHT (s->display.x->font) * s->height) | |
1494 | + s->display.x->internal_border_width | |
1495 | - (2 * (s->display.x->v_scrollbar_width - 2))); | |
1496 | XSET (x_mouse_y, Lisp_Int, len); | |
1497 | ||
1498 | result->kind = scrollbar_click; | |
1499 | result->part = part; | |
1500 | XSET (result->x, Lisp_Int, (s->display.x->top_pos - event->y)); | |
1501 | XSET (result->y, Lisp_Int, s->display.x->pixel_height); | |
1502 | result->screen = s; | |
1503 | } | |
1504 | else /* Text Window Event */ | |
1505 | { | |
1506 | int row, column; | |
1507 | ||
90e65f07 | 1508 | pixel_to_glyph_coords (s, event->x, event->y, &column, &row, NULL); |
dc6f92b8 JB |
1509 | result->kind = mouse_click; |
1510 | result->x = column; | |
1511 | result->y = row; | |
1512 | result->screen = s; | |
1513 | } | |
1514 | } | |
1515 | ||
1516 | ||
90e65f07 JB |
1517 | /* Mouse movement. Rah. |
1518 | ||
1519 | In order to avoid asking for motion events and then throwing most | |
1520 | of them away or busy-polling the server for mouse positions, we ask | |
1521 | the server for pointer motion hints. This means that we get only | |
1522 | one event per group of mouse movements. "Groups" are delimited by | |
1523 | other kinds of events (focus changes and button clicks, for | |
1524 | example), or by XQueryPointer calls; when one of these happens, we | |
1525 | get another MotionNotify event the next time the mouse moves. This | |
1526 | is at least as efficient than getting motion events when mouse | |
1527 | tracking is on, and I suspect only negligibly worse when tracking | |
1528 | is off. | |
1529 | ||
1530 | The silly O'Reilly & Associates Nutshell guides barely document | |
1531 | pointer motion hints at all (I think you have to infer how they | |
1532 | work from an example), and the description of XQueryPointer doesn't | |
1533 | mention that calling it causes you to get another motion hint from | |
1534 | the server, which is very important. */ | |
1535 | ||
1536 | /* Where the mouse was last time we reported a mouse event. */ | |
1537 | static SCREEN_PTR last_mouse_screen; | |
1538 | static XRectangle last_mouse_glyph; | |
1539 | ||
1540 | /* Function to report a mouse movement to the mainstream Emacs code. | |
1541 | The input handler calls this. | |
1542 | ||
1543 | We have received a mouse movement event, which is given in *event. | |
1544 | If the mouse is over a different glyph than it was last time, tell | |
1545 | the mainstream emacs code by setting mouse_moved. If not, ask for | |
1546 | another motion event, so we can check again the next time it moves. */ | |
1547 | static void | |
1548 | note_mouse_position (screen, event) | |
1549 | SCREEN_PTR screen; | |
1550 | XMotionEvent *event; | |
1551 | ||
1552 | { | |
1553 | /* Has the mouse moved off the glyph it was on at the last sighting? */ | |
1554 | if (event->x < last_mouse_glyph.x | |
1555 | || event->x >= last_mouse_glyph.x + last_mouse_glyph.width | |
1556 | || event->y < last_mouse_glyph.y | |
1557 | || event->y >= last_mouse_glyph.y + last_mouse_glyph.height) | |
1558 | mouse_moved = 1; | |
1559 | else | |
1560 | { | |
1561 | /* It's on the same glyph. Call XQueryPointer so we'll get an | |
1562 | event the next time the mouse moves and we can see if it's | |
1563 | *still* on the same glyph. */ | |
1564 | int dummy; | |
1565 | ||
1566 | XQueryPointer (event->display, event->window, | |
1567 | (Window *) &dummy, (Window *) &dummy, | |
1568 | &dummy, &dummy, &dummy, &dummy, | |
1569 | (unsigned int *) &dummy); | |
1570 | } | |
1571 | } | |
1572 | ||
1573 | /* Return the current position of the mouse. | |
1574 | ||
1575 | This clears the mouse_moved flag, so we can wait for the next mouse | |
1576 | position. This also calls XQueryPointer, which will cause the | |
1577 | server to give us another MotionNotify when the mouse moves again. | |
1578 | */ | |
1579 | ||
1580 | static void | |
1581 | XTmouse_position (s, x, y, time) | |
1582 | SCREEN_PTR *s; | |
1583 | Lisp_Object *x, *y; | |
1584 | Lisp_Object *time; | |
1585 | { | |
1586 | int ix, iy, dummy; | |
1587 | Display *d = x_current_display; | |
1588 | Window guess, root, child; | |
1589 | ||
1590 | BLOCK_INPUT; | |
1591 | ||
1592 | /* I would like to have an X function that just told me the | |
1593 | innermost window containing the mouse. | |
1594 | ||
1595 | /* There doesn't seem to be any way to just get the innermost window | |
1596 | containing the pointer, no matter what X screen it's on; you have | |
1597 | to guess a window, and then X will tell you which one of that | |
1598 | window's children it's in. If the pointer isn't in any of that | |
1599 | window's children, it gives you a root window that contains it. | |
1600 | ||
1601 | So we start with the selected screen's window and chase down | |
1602 | branches under the guidance of XQueryPointer until we hit a leaf | |
1603 | (all of the Emacs windows we care about are leaf windows). If at | |
1604 | any time XQueryPointer returns false, that means that the current | |
1605 | window does not contain the pointer any more (perhaps it moved), | |
1606 | so we start with the root window XQueryPointer has given us and | |
1607 | start again. */ | |
1608 | ||
1609 | guess = selected_screen->display.x->window_desc; | |
1610 | for (;;) | |
1611 | if (XQueryPointer (d, guess, &root, &child, | |
1612 | &dummy, &dummy, &ix, &iy, (unsigned int *) &dummy)) | |
1613 | { | |
1614 | if (child == None) | |
1615 | /* Guess is a leaf window, and it contains the pointer. */ | |
1616 | break; | |
1617 | else | |
1618 | guess = child; | |
1619 | } | |
1620 | else | |
1621 | /* When XQueryPointer returns False, the pointer isn't in guess | |
1622 | anymore, but root is the root window of the screen we should | |
1623 | try instead. */ | |
1624 | guess = root; | |
1625 | ||
1626 | *s = last_mouse_screen = x_window_to_screen (guess); | |
1627 | if (! *s) | |
1628 | *x = *y = Qnil; | |
1629 | else | |
1630 | { | |
1631 | pixel_to_glyph_coords (*s, ix, iy, &ix, &iy, &last_mouse_glyph); | |
1632 | XSET (*x, Lisp_Int, ix); | |
1633 | XSET (*y, Lisp_Int, iy); | |
1634 | } | |
1635 | ||
1636 | mouse_moved = 0; | |
1637 | ||
1638 | /* I don't know how to find the time for the last movement; it seems | |
1639 | like XQueryPointer ought to return it, but it doesn't. */ | |
1640 | *time = Qnil; | |
1641 | ||
1642 | UNBLOCK_INPUT; | |
1643 | } | |
1644 | ||
1645 | \f | |
dc6f92b8 JB |
1646 | static char *events[] = |
1647 | { | |
1648 | "0: ERROR!", | |
1649 | "1: REPLY", | |
1650 | "KeyPress", | |
55123275 JB |
1651 | "KeyRelease", |
1652 | "ButtonPress", | |
1653 | "ButtonRelease", | |
1654 | "MotionNotify", | |
1655 | "EnterNotify", | |
1656 | "LeaveNotify", | |
1657 | "FocusIn", | |
1658 | "FocusOut", | |
1659 | "KeymapNotify", | |
1660 | "Expose", | |
1661 | "GraphicsExpose", | |
1662 | "NoExpose", | |
1663 | "VisibilityNotify", | |
1664 | "CreateNotify", | |
1665 | "DestroyNotify", | |
1666 | "UnmapNotify", | |
1667 | "MapNotify", | |
1668 | "MapRequest", | |
1669 | "ReparentNotify", | |
1670 | "ConfigureNotify", | |
1671 | "ConfigureRequest", | |
1672 | "GravityNotify", | |
1673 | "ResizeRequest", | |
1674 | "CirculateNotify", | |
1675 | "CirculateRequest", | |
1676 | "PropertyNotify", | |
1677 | "SelectionClear", | |
1678 | "SelectionRequest", | |
1679 | "SelectionNotify", | |
1680 | "ColormapNotify", | |
1681 | "ClientMessage", | |
1682 | "MappingNotify", | |
1683 | "LASTEvent" | |
dc6f92b8 JB |
1684 | }; |
1685 | #else /* X10 */ | |
1686 | #define XEvent XKeyPressedEvent | |
1687 | #endif /* HAVE_X11 */ | |
1688 | ||
dc6f92b8 JB |
1689 | /* Timestamp of enter window event. This is only used by XTread_socket, |
1690 | but we have to put it out here, since static variables within functions | |
1691 | sometimes don't work. */ | |
1692 | static Time enter_timestamp; | |
1693 | ||
1694 | /* Read events coming from the X server. | |
1695 | This routine is called by the SIGIO handler. | |
1696 | We return as soon as there are no more events to be read. | |
1697 | ||
1698 | Events representing keys are stored in buffer BUFP, | |
1699 | which can hold up to NUMCHARS characters. | |
1700 | We return the number of characters stored into the buffer, | |
1701 | thus pretending to be `read'. | |
1702 | ||
1703 | WAITP is nonzero if we should block until input arrives. | |
1704 | EXPECTED is nonzero if the caller knows input is available. */ | |
1705 | ||
1706 | Lisp_Object | |
1707 | XTread_socket (sd, bufp, numchars, waitp, expected) | |
1708 | register int sd; | |
1709 | register struct input_event *bufp; | |
1710 | register int numchars; | |
1711 | int waitp; | |
1712 | int expected; | |
1713 | { | |
1714 | int count = 0; | |
1715 | int nbytes = 0; | |
1716 | int mask; | |
1717 | int items_pending; /* How many items are in the X queue. */ | |
1718 | XEvent event; | |
1719 | struct screen *s; | |
1720 | int event_found; | |
1721 | int prefix; | |
1722 | Lisp_Object part; | |
1723 | ||
1724 | if (x_input_blocked) | |
1725 | { | |
1726 | x_pending_input = 1; | |
1727 | return -1; | |
1728 | } | |
1729 | ||
1730 | x_pending_input = 0; | |
1731 | BLOCK_INPUT; | |
1732 | ||
1733 | if (numchars <= 0) | |
1734 | abort (); /* Don't think this happens. */ | |
1735 | ||
1736 | #ifdef FIOSNBIO | |
1737 | /* If available, Xlib uses FIOSNBIO to make the socket | |
1738 | non-blocking, and then looks for EWOULDBLOCK. If O_NDELAY is set, | |
1739 | FIOSNBIO is ignored, and instead of signalling EWOULDBLOCK, | |
1740 | a read returns 0, which Xlib interprets as equivalent to EPIPE. */ | |
1741 | fcntl (fileno (stdin), F_SETFL, 0); | |
1742 | #endif | |
1743 | ||
1744 | #ifndef SIGIO | |
1745 | #ifndef HAVE_SELECT | |
1746 | if (! (fcntl (fileno (stdin), F_GETFL, 0) & O_NDELAY)) | |
1747 | { | |
1748 | extern int read_alarm_should_throw; | |
1749 | read_alarm_should_throw = 1; | |
1750 | XPeekEvent (XDISPLAY &event); | |
1751 | read_alarm_should_throw = 0; | |
1752 | } | |
1753 | #endif | |
1754 | #endif | |
1755 | ||
1756 | while (XStuffPending () != 0) | |
1757 | { | |
1758 | XNextEvent (XDISPLAY &event); | |
1759 | event_found = 1; | |
1760 | ||
1761 | switch (event.type) | |
1762 | { | |
1763 | #ifdef HAVE_X11 | |
1764 | ||
1765 | case SelectionClear: /* Someone has grabbed ownership. */ | |
1766 | x_disown_selection (event.xselectionclear.window, | |
1767 | event.xselectionclear.selection, | |
1768 | event.xselectionclear.time); | |
1769 | break; | |
1770 | ||
1771 | case SelectionRequest: /* Someone wants our selection. */ | |
1772 | x_answer_selection_request (event); | |
1773 | break; | |
1774 | ||
1775 | case PropertyNotify: | |
1776 | /* If we were to do this synchronously, there'd be no worry | |
1777 | about re-selecting. */ | |
1778 | x_send_incremental (event); | |
1779 | break; | |
1780 | ||
1781 | case Expose: | |
1782 | s = x_window_to_screen (event.xexpose.window); | |
1783 | if (s) | |
1784 | { | |
1785 | if (s->visible == 0) | |
1786 | { | |
1787 | s->visible = 1; | |
1788 | s->iconified = 0; | |
1789 | SET_SCREEN_GARBAGED (s); | |
1790 | } | |
1791 | else | |
1792 | dumprectangle (x_window_to_screen (event.xexpose.window), | |
1793 | event.xexpose.x, event.xexpose.y, | |
1794 | event.xexpose.width, event.xexpose.height); | |
1795 | } | |
1796 | break; | |
1797 | ||
1798 | case GraphicsExpose: /* This occurs when an XCopyArea's | |
1799 | source area was obscured or not | |
1800 | available.*/ | |
1801 | dumprectangle (x_window_to_screen (event.xgraphicsexpose.drawable), | |
1802 | event.xgraphicsexpose.x, event.xgraphicsexpose.y, | |
1803 | event.xgraphicsexpose.width, | |
1804 | event.xgraphicsexpose.height); | |
1805 | break; | |
1806 | ||
1807 | case NoExpose: /* This occurs when an XCopyArea's | |
1808 | source area was completely | |
1809 | available */ | |
1810 | break; | |
1811 | #else /* not HAVE_X11 */ | |
1812 | case ExposeWindow: | |
1813 | if (event.subwindow != 0) | |
1814 | break; /* duplicate event */ | |
1815 | s = x_window_to_screen (event.window); | |
1816 | if (event.window == s->display.x->icon_desc) | |
1817 | { | |
1818 | refreshicon (s); | |
1819 | s->iconified = 1; | |
1820 | } | |
1821 | if (event.window == s->display.x->window_desc) | |
1822 | { | |
1823 | /* Say must check all windows' needs_exposure flags. */ | |
1824 | expose_all_windows = 1; | |
1825 | s->display.x->needs_exposure = 1; | |
1826 | s->visible = 1; | |
1827 | } | |
1828 | break; | |
1829 | ||
1830 | case ExposeRegion: | |
1831 | if (event.subwindow != 0) | |
1832 | break; /* duplicate event */ | |
1833 | s = x_window_to_screen (event.window); | |
1834 | if (event.window == s->display.x->icon_desc) | |
1835 | { | |
1836 | refreshicon (s); | |
1837 | break; | |
1838 | } | |
1839 | /* If window already needs full redraw, ignore this rectangle. */ | |
1840 | if (expose_all_windows && s->display.x->needs_exposure) | |
1841 | break; | |
1842 | /* Put the event on the queue of rectangles to redraw. */ | |
1843 | if (enqueue_event (&event, &x_expose_queue)) | |
1844 | /* If it is full, we can't record the rectangle, | |
1845 | so redraw this entire window. */ | |
1846 | { | |
1847 | /* Say must check all windows' needs_exposure flags. */ | |
1848 | expose_all_windows = 1; | |
1849 | s->display.x->needs_exposure = 1; | |
1850 | } | |
1851 | break; | |
1852 | ||
1853 | case ExposeCopy: | |
1854 | /* This should happen only when we are expecting it, | |
1855 | in x_read_exposes. */ | |
1856 | abort (); | |
1857 | #endif /* not HAVE_X11 */ | |
1858 | ||
1859 | #ifdef HAVE_X11 | |
1860 | case UnmapNotify: | |
1861 | { | |
1862 | XWMHints *hints; | |
1863 | ||
1864 | s = x_window_to_screen (event.xunmap.window); | |
1865 | if (s) /* S may no longer exist if | |
1866 | the screen was deleted. */ | |
1867 | { | |
1868 | /* While a screen is unmapped, display generation is | |
1869 | disabled; you don't want to spend time updating a | |
1870 | display that won't ever be seen. */ | |
1871 | s->visible = 0; | |
dc6f92b8 JB |
1872 | x_mouse_x = x_mouse_y = -1; |
1873 | } | |
1874 | } | |
1875 | break; | |
1876 | ||
1877 | case MapNotify: | |
1878 | s = x_window_to_screen (event.xmap.window); | |
1879 | if (s) | |
1880 | { | |
1881 | s->visible = 1; | |
1882 | s->iconified = 0; | |
1883 | ||
1884 | /* wait_reading_process_input will notice this and update | |
1885 | the screen's display structures. */ | |
1886 | SET_SCREEN_GARBAGED (s); | |
1887 | } | |
1888 | break; | |
1889 | ||
1890 | /* Turn off processing if we become fully obscured. */ | |
1891 | case VisibilityNotify: | |
1892 | break; | |
1893 | ||
1894 | #else | |
1895 | case UnmapWindow: | |
1896 | s = x_window_to_screen (event.window); | |
1897 | if (event.window == s->display.x->icon_desc) | |
1898 | s->iconified = 0; | |
1899 | if (event.window == s->display.x->window_desc) | |
1900 | s->visible = 0; | |
1901 | break; | |
1902 | #endif /* HAVE_X11 */ | |
1903 | ||
1904 | #ifdef HAVE_X11 | |
1905 | case KeyPress: | |
1906 | s = x_window_to_screen (event.xkey.window); | |
1907 | if (s != 0) | |
1908 | { | |
1909 | KeySym keysym; | |
1910 | XComposeStatus status; | |
1911 | char copy_buffer[80]; | |
3a2712f9 JB |
1912 | int modifiers = event.xkey.state; |
1913 | ||
1914 | /* Some keyboards generate different characters | |
1915 | depending on the state of the meta key, in an attempt | |
1916 | to support non-English typists. It would be nice to | |
1917 | keep this functionality somehow, but for now, we will | |
1918 | just clear the meta-key flag to get the 'pure' character. */ | |
1919 | event.xkey.state &= ~Mod1Mask; | |
dc6f92b8 JB |
1920 | |
1921 | /* This will have to go some day... */ | |
1922 | nbytes = XLookupString (&event.xkey, | |
1923 | copy_buffer, | |
1924 | 80, | |
1925 | &keysym, | |
1926 | &status); | |
1927 | ||
55123275 JB |
1928 | /* Strip off the vendor-specific keysym bit, and take a shot |
1929 | at recognizing the codes. HP servers have extra keysyms | |
1930 | that fit into the MiscFunctionKey category. */ | |
1931 | keysym &= ~(1<<28); | |
1932 | ||
dc6f92b8 JB |
1933 | if (numchars > 1) |
1934 | { | |
55123275 JB |
1935 | if (IsCursorKey (keysym) /* 0xff50 <= x < 0xff60 */ |
1936 | || IsMiscFunctionKey (keysym) /* 0xff60 <= x < 0xff80 */ | |
1937 | || IsKeypadKey (keysym) /* 0xff80 <= x < 0xffbe */ | |
1938 | || IsFunctionKey (keysym)) /* 0xffbe <= x < 0xffe1 */ | |
dc6f92b8 JB |
1939 | { |
1940 | bufp->kind = non_ascii_keystroke; | |
90e65f07 | 1941 | XSET (bufp->code, Lisp_Int, (unsigned) keysym - 0xff50); |
6d4238f3 | 1942 | bufp->screen = XSCREEN (SCREEN_FOCUS_SCREEN (s)); |
3a2712f9 | 1943 | bufp->modifiers = x_convert_modifiers (modifiers); |
90e65f07 | 1944 | XSET (bufp->timestamp, Lisp_Int, event.xkey.time); |
dc6f92b8 JB |
1945 | bufp++; |
1946 | count++; | |
1947 | numchars--; | |
1948 | } | |
1949 | else if (numchars > nbytes) | |
1950 | { | |
1951 | register int i; | |
1952 | ||
1953 | if (nbytes == 1) | |
1954 | { | |
3a2712f9 | 1955 | if (modifiers & Mod1Mask) |
dc6f92b8 JB |
1956 | *copy_buffer |= METABIT; |
1957 | bufp->kind = ascii_keystroke; | |
6d4238f3 | 1958 | bufp->screen = XSCREEN (SCREEN_FOCUS_SCREEN (s)); |
dc6f92b8 | 1959 | XSET (bufp->code, Lisp_Int, *copy_buffer); |
90e65f07 | 1960 | XSET (bufp->timestamp, Lisp_Int, event.xkey.time); |
dc6f92b8 JB |
1961 | bufp++; |
1962 | } | |
1963 | else | |
1964 | for (i = nbytes - 1; i > 1; i--) | |
1965 | { | |
1966 | bufp->kind = ascii_keystroke; | |
1967 | XSET (bufp->code, Lisp_Int, copy_buffer[i]); | |
90e65f07 | 1968 | XSET (bufp->timestamp, Lisp_Int, event.xkey.time); |
6d4238f3 | 1969 | bufp->screen = XSCREEN (SCREEN_FOCUS_SCREEN (s)); |
dc6f92b8 JB |
1970 | bufp++; |
1971 | } | |
1972 | ||
1973 | count += nbytes; | |
1974 | numchars -= nbytes; | |
1975 | } | |
1976 | } | |
1977 | } | |
1978 | break; | |
1979 | #else | |
1980 | case KeyPressed: | |
1981 | { | |
1982 | register char *where_mapping; | |
1983 | ||
1984 | s = x_window_to_screen (event.window); | |
1985 | /* Ignore keys typed on icon windows. */ | |
1986 | if (s != 0 && event.window == s->display.x->icon_desc) | |
1987 | break; | |
1988 | where_mapping = XLookupMapping (&event, &nbytes); | |
1989 | /* Nasty fix for arrow keys */ | |
1990 | if (!nbytes && IsCursorKey (event.detail & 0xff)) | |
1991 | { | |
1992 | switch (event.detail & 0xff) | |
1993 | { | |
1994 | case KC_CURSOR_LEFT: | |
1995 | where_mapping = "\002"; | |
1996 | break; | |
1997 | case KC_CURSOR_RIGHT: | |
1998 | where_mapping = "\006"; | |
1999 | break; | |
2000 | case KC_CURSOR_UP: | |
2001 | where_mapping = "\020"; | |
2002 | break; | |
2003 | case KC_CURSOR_DOWN: | |
2004 | where_mapping = "\016"; | |
2005 | break; | |
2006 | } | |
2007 | nbytes = 1; | |
2008 | } | |
2009 | if (numchars - nbytes > 0) | |
2010 | { | |
2011 | register int i; | |
2012 | ||
2013 | for (i = 0; i < nbytes; i++) | |
2014 | { | |
2015 | bufp->kind = ascii_keystroke; | |
2016 | XSET (bufp->code, Lisp_Int, where_mapping[i]); | |
90e65f07 | 2017 | XSET (bufp->time, Lisp_Int, event.xkey.time); |
6d4238f3 | 2018 | bufp->screen = XSCREEN (SCREEN_FOCUS_SCREEN (s)); |
dc6f92b8 JB |
2019 | bufp++; |
2020 | } | |
2021 | count += nbytes; | |
2022 | numchars -= nbytes; | |
2023 | } | |
2024 | } | |
2025 | break; | |
2026 | #endif /* HAVE_X11 */ | |
2027 | ||
2028 | #ifdef HAVE_X11 | |
2029 | case EnterNotify: | |
6d4238f3 JB |
2030 | s = x_window_to_screen (event.xcrossing.window); |
2031 | ||
dc6f92b8 JB |
2032 | if (event.xcrossing.detail == NotifyInferior) /* Left Scrollbar */ |
2033 | ; | |
2034 | else if (event.xcrossing.focus) /* Entered Window */ | |
2035 | { | |
2036 | /* If we decide we want to generate an event to be seen | |
2037 | by the rest of Emacs, we put it here. */ | |
2038 | struct input_event emacs_event; | |
2039 | emacs_event.kind = no_event; | |
2040 | ||
dc6f92b8 JB |
2041 | /* Avoid nasty pop/raise loops. */ |
2042 | if (s && (!(s->auto_raise) | |
2043 | || !(s->auto_lower) | |
2044 | || (event.xcrossing.time - enter_timestamp) > 500)) | |
2045 | { | |
6d4238f3 | 2046 | x_new_focus_screen (s); |
dc6f92b8 JB |
2047 | enter_timestamp = event.xcrossing.time; |
2048 | } | |
2049 | #if 0 | |
2050 | else if ((s = x_window_to_scrollbar (event.xcrossing.window, | |
2051 | &part, &prefix))) | |
2052 | /* Fake a motion event */ | |
2053 | notice_mouse_movement (&emacs_event, | |
2054 | event.xmotion, s, scrollbar_window, | |
2055 | part); | |
2056 | #endif | |
2057 | ||
2058 | #if 0 | |
2059 | if (! EQ (Vx_send_mouse_movement_events, Qnil) | |
2060 | && numchars >= 1 | |
2061 | && emacs_event.kind != no_event) | |
2062 | { | |
2063 | bcopy (&emacs_event, bufp, sizeof (struct input_event)); | |
2064 | bufp++; | |
2065 | count++; | |
2066 | numchars--; | |
2067 | } | |
2068 | #endif | |
2069 | } | |
6d4238f3 JB |
2070 | else if (s == x_focus_screen) |
2071 | x_new_focus_screen (0); | |
dc6f92b8 JB |
2072 | #if 0 |
2073 | else if (s = x_window_to_screen (event.xcrossing.window)) | |
2074 | x_mouse_screen = s; | |
2075 | #endif | |
2076 | ||
2077 | break; | |
2078 | ||
2079 | case FocusIn: | |
2080 | s = x_window_to_screen (event.xfocus.window); | |
2081 | if (s) | |
6d4238f3 | 2082 | x_new_focus_screen (s); |
dc6f92b8 JB |
2083 | break; |
2084 | ||
2085 | case LeaveNotify: | |
2086 | if (event.xcrossing.detail != NotifyInferior | |
2087 | && event.xcrossing.subwindow == None | |
2088 | && event.xcrossing.mode == NotifyNormal) | |
2089 | { | |
6d4238f3 | 2090 | s = x_window_to_screen (event.xcrossing.window); |
c7004826 | 2091 | if (event.xcrossing.focus) |
6d4238f3 JB |
2092 | x_new_focus_screen (s); |
2093 | else if (s == x_focus_screen) | |
2094 | x_new_focus_screen (0); | |
dc6f92b8 JB |
2095 | } |
2096 | break; | |
2097 | ||
2098 | case FocusOut: | |
2099 | s = x_window_to_screen (event.xfocus.window); | |
2100 | if (s && s == x_focus_screen) | |
6d4238f3 | 2101 | x_new_focus_screen (0); |
dc6f92b8 JB |
2102 | break; |
2103 | ||
2104 | #else /* not HAVE_X11 */ | |
2105 | ||
2106 | case EnterWindow: | |
2107 | if ((event.detail & 0xFF) == 1) | |
2108 | break; /* Coming from our own subwindow */ | |
2109 | if (event.subwindow != 0) | |
2110 | break; /* Entering our own subwindow. */ | |
2111 | ||
2112 | { | |
2113 | extern int waiting_for_input; | |
2114 | struct screen *old_s = x_input_screen; | |
2115 | ||
2116 | s = x_window_to_screen (event.window); | |
2117 | x_mouse_screen = s; | |
2118 | ||
2119 | if (waiting_for_input && x_focus_screen == 0) | |
6d4238f3 | 2120 | x_new_focus_screen (s); |
dc6f92b8 JB |
2121 | } |
2122 | break; | |
2123 | ||
2124 | case LeaveWindow: | |
2125 | if ((event.detail & 0xFF) == 1) | |
2126 | break; /* Entering our own subwindow */ | |
2127 | if (event.subwindow != 0) | |
2128 | break; /* Leaving our own subwindow. */ | |
2129 | ||
2130 | x_mouse_screen = 0; | |
2131 | if (x_focus_screen == 0 | |
2132 | && x_input_screen != 0 | |
2133 | && x_input_screen == x_window_to_screen (event.window) | |
2134 | && event.window == x_input_screen->display.x->window_desc) | |
2135 | { | |
2136 | s = x_input_screen; | |
2137 | x_input_screen = 0; | |
2138 | if (s) | |
2139 | screen_unhighlight (s); | |
2140 | } | |
2141 | break; | |
2142 | #endif /* not HAVE_X11 */ | |
2143 | ||
2144 | #ifdef HAVE_X11 | |
2145 | case MotionNotify: | |
2146 | { | |
2147 | s = x_window_to_screen (event.xmotion.window); | |
2148 | if (s) | |
90e65f07 | 2149 | note_mouse_position (s, &event.xmotion); |
dc6f92b8 JB |
2150 | #if 0 |
2151 | else if ((s = x_window_to_scrollbar (event.xmotion.window, | |
2152 | &part, &prefix))) | |
2153 | { | |
2154 | What should go here? | |
2155 | } | |
2156 | #endif | |
2157 | } | |
2158 | break; | |
2159 | ||
2160 | case ConfigureNotify: | |
2161 | { | |
2162 | int rows, columns; | |
2163 | s = x_window_to_screen (event.xconfigure.window); | |
2164 | if (!s) | |
2165 | break; | |
2166 | ||
2167 | columns = ((event.xconfigure.width - | |
2168 | (2 * s->display.x->internal_border_width) | |
2169 | - s->display.x->v_scrollbar_width) | |
2170 | / FONT_WIDTH (s->display.x->font)); | |
2171 | rows = ((event.xconfigure.height - | |
2172 | (2 * s->display.x->internal_border_width) | |
2173 | - s->display.x->h_scrollbar_height) | |
2174 | / FONT_HEIGHT (s->display.x->font)); | |
2175 | ||
90e65f07 JB |
2176 | /* Even if the number of character rows and columns has |
2177 | not changed, the font size may have changed, so we need | |
2178 | to check the pixel dimensions as well. */ | |
2179 | if (columns != s->width | |
2180 | || rows != s->height | |
2181 | || event.xconfigure.width != s->display.x->pixel_width | |
2182 | || event.xconfigure.height != s->display.x->pixel_height) | |
dc6f92b8 | 2183 | { |
dc6f92b8 JB |
2184 | change_screen_size (s, rows, columns, 0); |
2185 | x_resize_scrollbars (s); | |
2186 | SET_SCREEN_GARBAGED (s); | |
dc6f92b8 JB |
2187 | } |
2188 | ||
dc6f92b8 JB |
2189 | s->display.x->pixel_width = event.xconfigure.width; |
2190 | s->display.x->pixel_height = event.xconfigure.height; | |
90e65f07 JB |
2191 | s->display.x->left_pos = event.xconfigure.x; |
2192 | s->display.x->top_pos = event.xconfigure.y; | |
dc6f92b8 JB |
2193 | break; |
2194 | } | |
2195 | ||
2196 | case ButtonPress: | |
2197 | case ButtonRelease: | |
2198 | { | |
2199 | /* If we decide we want to generate an event to be seen | |
2200 | by the rest of Emacs, we put it here. */ | |
2201 | struct input_event emacs_event; | |
2202 | emacs_event.kind = no_event; | |
2203 | ||
2204 | s = x_window_to_screen (event.xbutton.window); | |
2205 | if (s) | |
2206 | if (!x_focus_screen || (s == x_focus_screen)) | |
2207 | construct_mouse_click (&emacs_event, | |
2208 | &event, s, 0, 0); | |
2209 | else | |
2210 | continue; | |
2211 | else | |
2212 | if ((s = x_window_to_scrollbar (event.xbutton.window, | |
2213 | &part, &prefix))) | |
2214 | { | |
2215 | if (!x_focus_screen || (selected_screen == x_focus_screen)) | |
2216 | construct_mouse_click (&emacs_event, | |
2217 | &event, s, part, prefix); | |
2218 | else | |
2219 | continue; | |
2220 | } | |
2221 | ||
2222 | if (numchars >= 1 && emacs_event.kind != no_event) | |
2223 | { | |
2224 | bcopy (&emacs_event, bufp, sizeof (struct input_event)); | |
2225 | bufp++; | |
2226 | count++; | |
2227 | numchars--; | |
2228 | } | |
2229 | } | |
2230 | break; | |
2231 | ||
2232 | #else /* not HAVE_X11 */ | |
2233 | case ButtonPressed: | |
2234 | case ButtonReleased: | |
2235 | s = x_window_to_screen (event.window); | |
2236 | if (s) | |
2237 | { | |
2238 | if (event.window == s->display.x->icon_desc) | |
2239 | { | |
2240 | x_make_screen_visible (s); | |
2241 | ||
2242 | if (warp_mouse_on_deiconify) | |
2243 | XWarpMouse (s->display.x->window_desc, 10, 10); | |
2244 | break; | |
2245 | } | |
2246 | if (event.window == s->display.x->window_desc) | |
2247 | { | |
2248 | if (s->auto_raise) | |
2249 | x_raise_screen (s); | |
2250 | } | |
2251 | } | |
2252 | enqueue_event (&event, &x_mouse_queue); | |
2253 | if (numchars >= 2) | |
2254 | { | |
2255 | bufp->kind = ascii_keystroke; | |
2256 | bufp->code = (char) 'X' & 037; /* C-x */ | |
6d4238f3 | 2257 | bufp->screen = XSCREEN (SCREEN_FOCUS_SCREEN (s)); |
90e65f07 | 2258 | XSET (bufp->time, Lisp_Int, event.xkey.time); |
dc6f92b8 JB |
2259 | bufp++; |
2260 | ||
2261 | bufp->kind = ascii_keystroke; | |
2262 | bufp->code = (char) 0; /* C-@ */ | |
6d4238f3 | 2263 | bufp->screen = XSCREEN (SCREEN_FOCUS_SCREEN (s)); |
90e65f07 | 2264 | XSET (bufp->time, Lisp_Int, event.xkey.time); |
dc6f92b8 JB |
2265 | bufp++; |
2266 | ||
2267 | count += 2; | |
2268 | numchars -= 2; | |
2269 | } | |
2270 | break; | |
2271 | #endif /* not HAVE_X11 */ | |
2272 | ||
2273 | #ifdef HAVE_X11 | |
2274 | ||
2275 | case CirculateNotify: | |
2276 | break; | |
2277 | case CirculateRequest: | |
2278 | break; | |
2279 | ||
2280 | #endif /* HAVE_X11 */ | |
2281 | ||
2282 | case MappingNotify: | |
2283 | if (event.xmapping.request == MappingKeyboard) | |
2284 | /* Someone has changed the keyboard mapping - flush the | |
2285 | local cache. */ | |
2286 | XRefreshKeyboardMapping (&event.xmapping); | |
2287 | break; | |
2288 | ||
2289 | default: | |
2290 | break; | |
2291 | } | |
2292 | } | |
2293 | ||
2294 | #if 0 | |
2295 | #ifdef HAVE_SELECT | |
2296 | if (expected && ! event_found) | |
2297 | { | |
2298 | /* AOJ 880406: if select returns true but XPending doesn't, it means that | |
2299 | there is an EOF condition; in other words, that X has died. | |
2300 | Act as if there had been a hangup. */ | |
2301 | ||
2302 | int fd = ConnectionNumber (x_current_display); | |
2303 | int mask = 1 << fd; | |
2304 | ||
2305 | if (0 != select (fd + 1, &mask, (long *) 0, (long *) 0, | |
3a2712f9 | 2306 | (EMACS_TIME) 0) |
dc6f92b8 JB |
2307 | && !XStuffPending ()) |
2308 | kill (getpid (), SIGHUP); | |
2309 | } | |
2310 | #endif /* HAVE_SELECT */ | |
2311 | #endif | |
2312 | ||
2313 | if (updating_screen == 0) | |
2314 | x_do_pending_expose (); | |
2315 | ||
2316 | UNBLOCK_INPUT; | |
2317 | return count; | |
2318 | } | |
2319 | ||
2320 | #ifndef HAVE_X11 | |
2321 | /* Read and process only Expose events | |
2322 | until we get an ExposeCopy event; then return. | |
2323 | This is used in insert/delete line. | |
2324 | We assume input is already blocked. */ | |
2325 | ||
2326 | static void | |
2327 | x_read_exposes () | |
2328 | { | |
2329 | struct screen *s; | |
2330 | XKeyPressedEvent event; | |
2331 | ||
2332 | while (1) | |
2333 | { | |
2334 | /* while there are more events*/ | |
2335 | XMaskEvent (ExposeWindow | ExposeRegion | ExposeCopy, &event); | |
2336 | switch (event.type) | |
2337 | { | |
2338 | case ExposeWindow: | |
2339 | if (event.subwindow != 0) | |
2340 | break; /* duplicate event */ | |
2341 | s = x_window_to_screen (event.window); | |
2342 | if (event.window == s->display.x->icon_desc) | |
2343 | { | |
2344 | refreshicon (s); | |
2345 | break; | |
2346 | } | |
2347 | if (event.window == s->display.x->window_desc) | |
2348 | { | |
2349 | expose_all_windows = 1; | |
2350 | s->display.x->needs_exposure = 1; | |
2351 | break; | |
2352 | } | |
2353 | break; | |
2354 | ||
2355 | case ExposeRegion: | |
2356 | if (event.subwindow != 0) | |
2357 | break; /* duplicate event */ | |
2358 | s = x_window_to_screen (event.window); | |
2359 | if (event.window == s->display.x->icon_desc) | |
2360 | { | |
2361 | refreshicon (s); | |
2362 | break; | |
2363 | } | |
2364 | /* If window already needs full redraw, ignore this rectangle. */ | |
2365 | if (expose_all_windows && s->display.x->needs_exposure) | |
2366 | break; | |
2367 | /* Put the event on the queue of rectangles to redraw. */ | |
2368 | if (enqueue_event (&event, &x_expose_queue)) | |
2369 | /* If it is full, we can't record the rectangle, | |
2370 | so redraw this entire window. */ | |
2371 | { | |
2372 | /* Say must check all windows' needs_exposure flags. */ | |
2373 | expose_all_windows = 1; | |
2374 | s->display.x->needs_exposure = 1; | |
2375 | } | |
2376 | break; | |
2377 | ||
2378 | case ExposeCopy: | |
2379 | return; | |
2380 | } | |
2381 | } | |
2382 | } | |
2383 | #endif /* HAVE_X11 */ | |
2384 | ||
dc6f92b8 JB |
2385 | \f |
2386 | /* Draw a hollow box cursor. Don't change the inside of the box. */ | |
2387 | ||
2388 | static void | |
2389 | x_draw_box (s) | |
2390 | struct screen *s; | |
2391 | { | |
2392 | int left = s->cursor_x * FONT_WIDTH (s->display.x->font) | |
2393 | + s->display.x->internal_border_width; | |
2394 | int top = s->cursor_y * FONT_HEIGHT (s->display.x->font) | |
2395 | + s->display.x->internal_border_width; | |
2396 | int width = FONT_WIDTH (s->display.x->font); | |
2397 | int height = FONT_HEIGHT (s->display.x->font); | |
2398 | ||
2399 | #ifdef HAVE_X11 | |
2400 | /* Perhaps we should subtract 1 from width and height... */ | |
2401 | XDrawRectangle (x_current_display, s->display.x->window_desc, | |
2402 | s->display.x->cursor_gc, | |
2403 | left, top, width - 1, height - 1); | |
2404 | #else | |
2405 | XPixSet (s->display.x->window_desc, | |
2406 | left, top, width, 1, | |
2407 | s->display.x->cursor_pixel); | |
2408 | ||
2409 | XPixSet (s->display.x->window_desc, | |
2410 | left, top, 1, height, | |
2411 | s->display.x->cursor_pixel); | |
2412 | ||
2413 | XPixSet (s->display.x->window_desc, | |
2414 | left+width-1, top, 1, height, | |
2415 | s->display.x->cursor_pixel); | |
2416 | ||
2417 | XPixSet (s->display.x->window_desc, | |
2418 | left, top+height-1, width, 1, | |
2419 | s->display.x->cursor_pixel); | |
2420 | #endif /* HAVE_X11 */ | |
2421 | } | |
2422 | ||
2423 | /* Clear the cursor of screen S to background color, | |
2424 | and mark the cursor as not shown. | |
2425 | This is used when the text where the cursor is | |
2426 | is about to be rewritten. */ | |
2427 | ||
2428 | static void | |
2429 | clear_cursor (s) | |
2430 | struct screen *s; | |
2431 | { | |
2432 | int mask; | |
2433 | ||
2434 | if (! s->visible | |
2435 | || s->phys_cursor_x < 0) | |
2436 | return; | |
2437 | ||
2438 | #ifdef HAVE_X11 | |
2439 | x_display_cursor (s, 0); | |
2440 | #if 0 | |
2441 | XClearArea (x_current_display, s->display.x->window_desc, | |
2442 | s->phys_cursor_x * FONT_WIDTH (s->display.x->font) | |
2443 | + s->display.x->internal_border_width, | |
2444 | s->phys_cursor_y * FONT_HEIGHT (s->display.x->font) | |
2445 | + s->display.x->internal_border_width, | |
2446 | FONT_WIDTH (s->display.x->font) + 1, FONT_HEIGHT (s->display.x->font) + 1, False); | |
2447 | #endif | |
2448 | #else | |
2449 | XPixSet (s->display.x->window_desc, | |
2450 | s->phys_cursor_x * FONT_WIDTH (s->display.x->font) + s->display.x->internal_border_width, | |
2451 | s->phys_cursor_y * FONT_HEIGHT (s->display.x->font) + s->display.x->internal_border_width, | |
2452 | FONT_WIDTH (s->display.x->font), FONT_HEIGHT (s->display.x->font), | |
2453 | s->display.x->background_pixel); | |
2454 | #endif /* HAVE_X11 */ | |
2455 | s->phys_cursor_x = -1; | |
2456 | } | |
2457 | ||
90e65f07 | 2458 | static void |
dc6f92b8 JB |
2459 | x_display_bar_cursor (s, on) |
2460 | struct screen *s; | |
2461 | int on; | |
2462 | { | |
2463 | register int phys_x = s->phys_cursor_x; | |
2464 | register int phys_y = s->phys_cursor_y; | |
2465 | register int x1; | |
2466 | register int y1; | |
2467 | register int y2; | |
2468 | ||
2469 | if (! s->visible || (! on && s->phys_cursor_x < 0)) | |
2470 | return; | |
2471 | ||
2472 | #ifdef HAVE_X11 | |
2473 | if (phys_x >= 0 && | |
2474 | (!on || phys_x != s->cursor_x || phys_y != s->cursor_y)) | |
2475 | { | |
2476 | x1 = phys_x * FONT_WIDTH (s->display.x->font) | |
2477 | + s->display.x->internal_border_width; | |
2478 | y1 = phys_y * FONT_HEIGHT (s->display.x->font) | |
2479 | + s->display.x->internal_border_width - 1; | |
2480 | y2 = y1 + FONT_HEIGHT (s->display.x->font) + 1; | |
2481 | ||
2482 | XDrawLine (x_current_display, s->display.x->window_desc, | |
2483 | s->display.x->reverse_gc, x1, y1, x1, y2); | |
2484 | ||
2485 | s->phys_cursor_x = phys_x = -1; | |
2486 | } | |
2487 | ||
6d4238f3 | 2488 | if (on && s == x_highlight_screen) |
dc6f92b8 JB |
2489 | { |
2490 | x1 = s->cursor_x * FONT_WIDTH (s->display.x->font) | |
2491 | + s->display.x->internal_border_width; | |
2492 | y1 = s->cursor_y * FONT_HEIGHT (s->display.x->font) | |
2493 | + s->display.x->internal_border_width - 1; | |
2494 | y2 = y1 + FONT_HEIGHT (s->display.x->font) + 1; | |
2495 | ||
2496 | XDrawLine (x_current_display, s->display.x->window_desc, | |
2497 | s->display.x->cursor_gc, x1, y1, x1, y2); | |
2498 | ||
2499 | s->phys_cursor_x = s->cursor_x; | |
2500 | s->phys_cursor_y = s->cursor_y; | |
2501 | } | |
2502 | #else /* X10 */ | |
2503 | Give it up, dude. | |
2504 | #endif /* X10 */ | |
2505 | } | |
2506 | ||
2507 | ||
90e65f07 JB |
2508 | /* Redraw the glyph at ROW, COLUMN on screen S, in the style |
2509 | HIGHLIGHT. HIGHLIGHT is as defined for dumpglyphs. Return the | |
2510 | glyph drawn. */ | |
dc6f92b8 JB |
2511 | |
2512 | static void | |
90e65f07 | 2513 | x_draw_single_glyph (s, row, column, glyph, highlight) |
dc6f92b8 JB |
2514 | struct screen *s; |
2515 | int row, column; | |
90e65f07 | 2516 | GLYPH glyph; |
dc6f92b8 JB |
2517 | int highlight; |
2518 | { | |
90e65f07 JB |
2519 | dumpglyphs (s, |
2520 | (column * FONT_WIDTH (s->display.x->font) | |
2521 | + s->display.x->internal_border_width), | |
2522 | (row * FONT_HEIGHT (s->display.x->font) | |
2523 | + s->display.x->internal_border_width), | |
2524 | &glyph, 1, highlight, s->display.x->font); | |
dc6f92b8 JB |
2525 | } |
2526 | ||
2527 | /* Turn the displayed cursor of screen S on or off according to ON. | |
2528 | If ON is nonzero, where to put the cursor is specified | |
2529 | by S->cursor_x and S->cursor_y. */ | |
2530 | ||
2531 | static void | |
2532 | x_display_box_cursor (s, on) | |
2533 | struct screen *s; | |
2534 | int on; | |
2535 | { | |
90e65f07 JB |
2536 | struct screen_glyphs *current_glyphs = SCREEN_CURRENT_GLYPHS (s); |
2537 | ||
dc6f92b8 JB |
2538 | if (! s->visible) |
2539 | return; | |
2540 | ||
2541 | /* If cursor is off and we want it off, return quickly. */ | |
dc6f92b8 JB |
2542 | if (!on && s->phys_cursor_x < 0) |
2543 | return; | |
2544 | ||
2545 | /* If cursor is currently being shown and we don't want it to be | |
2546 | or it is in the wrong place, | |
2547 | or we want a hollow box and it's not so, (pout!) | |
2548 | erase it. */ | |
2549 | if (s->phys_cursor_x >= 0 | |
2550 | && (!on | |
2551 | || s->phys_cursor_x != s->cursor_x | |
2552 | || s->phys_cursor_y != s->cursor_y | |
2553 | || (s->display.x->text_cursor_kind != hollow_box_cursor | |
6d4238f3 | 2554 | && (s != x_highlight_screen)))) |
dc6f92b8 JB |
2555 | { |
2556 | /* Erase the cursor by redrawing the character underneath it. */ | |
2557 | x_draw_single_glyph (s, s->phys_cursor_y, s->phys_cursor_x, | |
90e65f07 JB |
2558 | s->phys_cursor_glyph, |
2559 | current_glyphs->highlight[s->phys_cursor_y]); | |
dc6f92b8 JB |
2560 | s->phys_cursor_x = -1; |
2561 | } | |
2562 | ||
2563 | /* If we want to show a cursor, | |
2564 | or we want a box cursor and it's not so, | |
2565 | write it in the right place. */ | |
2566 | if (on | |
2567 | && (s->phys_cursor_x < 0 | |
2568 | || (s->display.x->text_cursor_kind != filled_box_cursor | |
6d4238f3 | 2569 | && s == x_highlight_screen))) |
dc6f92b8 | 2570 | { |
90e65f07 JB |
2571 | s->phys_cursor_glyph |
2572 | = ((current_glyphs->enable[s->cursor_y] | |
2573 | && s->cursor_x < current_glyphs->used[s->cursor_y]) | |
2574 | ? current_glyphs->glyphs[s->cursor_y][s->cursor_x] | |
2575 | : SPACEGLYPH); | |
6d4238f3 | 2576 | if (s != x_highlight_screen) |
dc6f92b8 JB |
2577 | { |
2578 | x_draw_box (s); | |
2579 | s->display.x->text_cursor_kind = hollow_box_cursor; | |
2580 | } | |
2581 | else | |
2582 | { | |
90e65f07 JB |
2583 | x_draw_single_glyph (s, s->cursor_y, s->cursor_x, |
2584 | s->phys_cursor_glyph, 2); | |
dc6f92b8 JB |
2585 | s->display.x->text_cursor_kind = filled_box_cursor; |
2586 | } | |
2587 | ||
2588 | s->phys_cursor_x = s->cursor_x; | |
2589 | s->phys_cursor_y = s->cursor_y; | |
2590 | } | |
2591 | ||
2592 | if (updating_screen != s) | |
2593 | XFlushQueue (); | |
2594 | } | |
2595 | ||
dc6f92b8 JB |
2596 | extern Lisp_Object Vbar_cursor; |
2597 | ||
2598 | x_display_cursor (s, on) | |
2599 | struct screen *s; | |
2600 | int on; | |
2601 | { | |
2602 | if (EQ (Vbar_cursor, Qnil)) | |
2603 | x_display_box_cursor (s, on); | |
2604 | else | |
2605 | x_display_bar_cursor (s, on); | |
2606 | } | |
2607 | \f | |
2608 | /* Icons. */ | |
2609 | ||
2610 | /* Refresh bitmap kitchen sink icon for screen S | |
2611 | when we get an expose event for it. */ | |
2612 | ||
2613 | refreshicon (s) | |
2614 | struct screen *s; | |
2615 | { | |
2616 | #ifdef HAVE_X11 | |
2617 | /* Normally, the window manager handles this function. */ | |
2618 | #else | |
2619 | int mask; | |
2620 | ||
2621 | if (s->display.x->icon_bitmap_flag) | |
2622 | XBitmapBitsPut (s->display.x->icon_desc, 0, 0, sink_width, sink_height, | |
2623 | sink_bits, BlackPixel, WHITE_PIX_DEFAULT, | |
2624 | icon_bitmap, GXcopy, AllPlanes); | |
2625 | else | |
2626 | { | |
2627 | extern struct screen *selected_screen; | |
2628 | struct Lisp_String *str; | |
2629 | unsigned char *string; | |
2630 | ||
2631 | string | |
2632 | = XSTRING (XBUFFER (XWINDOW (s->selected_window)->buffer)->name)->data; | |
2633 | ||
2634 | if (s->display.x->icon_label != string) | |
2635 | { | |
2636 | s->display.x->icon_label = string; | |
2637 | XChangeWindow (s->display.x->icon_desc, | |
2638 | XQueryWidth (string, icon_font_info->id) + 10, | |
2639 | icon_font_info->height + 10); | |
2640 | } | |
2641 | ||
2642 | XText (s->display.x->icon_desc, 5, 5, string, | |
2643 | str->size, icon_font_info->id, | |
2644 | BLACK_PIX_DEFAULT, WHITE_PIX_DEFAULT); | |
2645 | } | |
2646 | XFlushQueue (); | |
2647 | #endif /* HAVE_X11 */ | |
2648 | } | |
2649 | ||
2650 | /* Make the x-window of screen S use the kitchen-sink icon | |
2651 | that's a window generated by Emacs. */ | |
2652 | ||
2653 | int | |
2654 | x_bitmap_icon (s) | |
2655 | struct screen *s; | |
2656 | { | |
2657 | int mask; | |
2658 | Window icon_window; | |
2659 | ||
2660 | if (s->display.x->window_desc == 0) | |
2661 | return 1; | |
2662 | ||
2663 | #ifdef HAVE_X11 | |
2664 | if (icon_bitmap) | |
2665 | XFreePixmap (x_current_display, icon_bitmap); | |
2666 | ||
2667 | icon_bitmap = | |
2668 | XCreateBitmapFromData (x_current_display, s->display.x->window_desc, | |
2669 | gnu_bits, gnu_width, gnu_height); | |
2670 | x_wm_set_icon_pixmap (s, icon_bitmap); | |
2671 | s->display.x->icon_bitmap_flag = 1; | |
2672 | #else | |
2673 | if (s->display.x->icon_desc) | |
2674 | { | |
2675 | XClearIconWindow (s->display.x->window_desc); | |
2676 | XDestroyWindow (s->display.x->icon_desc); | |
2677 | } | |
2678 | ||
2679 | icon_window = XCreateWindow (s->display.x->parent_desc, | |
2680 | 0, 0, sink_width, sink_height, | |
2681 | 2, WhitePixmap, (Pixmap) NULL); | |
2682 | ||
2683 | if (icon_window == 0) | |
2684 | return 1; | |
2685 | ||
2686 | XSetIconWindow (s->display.x->window_desc, icon_window); | |
2687 | XSelectInput (icon_window, ExposeWindow | UnmapWindow); | |
2688 | ||
2689 | s->display.x->icon_desc = icon_window; | |
2690 | s->display.x->icon_bitmap_flag = 1; | |
2691 | ||
2692 | if (icon_bitmap == 0) | |
2693 | icon_bitmap | |
2694 | = XStoreBitmap (sink_mask_width, sink_mask_height, sink_mask_bits); | |
2695 | #endif /* HAVE_X11 */ | |
2696 | ||
2697 | return 0; | |
2698 | } | |
2699 | ||
2700 | ||
2701 | /* Make the x-window of screen S use a rectangle with text. */ | |
2702 | ||
2703 | int | |
2704 | x_text_icon (s, icon_name) | |
2705 | struct screen *s; | |
2706 | char *icon_name; | |
2707 | { | |
2708 | #ifndef HAVE_X11 | |
2709 | int mask; | |
2710 | int width; | |
2711 | Window icon_window; | |
2712 | char *X_DefaultValue; | |
2713 | Bitmap b1; | |
2714 | ||
dc6f92b8 JB |
2715 | #ifndef WhitePixel |
2716 | #define WhitePixel 1 | |
2717 | #endif | |
2718 | ||
2719 | #ifndef BlackPixel | |
2720 | #define BlackPixel 0 | |
2721 | #endif | |
2722 | #endif /* not HAVE_X11 */ | |
2723 | ||
2724 | if (s->display.x->window_desc == 0) | |
2725 | return 1; | |
2726 | ||
2727 | if (icon_font_info == 0) | |
2728 | icon_font_info | |
55123275 JB |
2729 | = XGetFont (XGetDefault (XDISPLAY |
2730 | (char *) XSTRING (invocation_name)->data, | |
2731 | "BodyFont")); | |
dc6f92b8 JB |
2732 | |
2733 | #ifdef HAVE_X11 | |
2734 | if (icon_name) | |
2735 | s->display.x->icon_label = icon_name; | |
2736 | else | |
2737 | if (! s->display.x->icon_label) | |
2738 | s->display.x->icon_label = " *emacs* "; | |
2739 | ||
2740 | XSetIconName (x_current_display, s->display.x->window_desc, | |
2741 | (char *) s->display.x->icon_label); | |
2742 | ||
2743 | s->display.x->icon_bitmap_flag = 0; | |
2744 | #else | |
2745 | if (s->display.x->icon_desc) | |
2746 | { | |
2747 | XClearIconWindow (XDISPLAY s->display.x->window_desc); | |
2748 | XDestroyWindow (XDISPLAY s->display.x->icon_desc); | |
2749 | } | |
2750 | ||
2751 | if (icon_name) | |
2752 | s->display.x->icon_label = (unsigned char *) icon_name; | |
2753 | else | |
2754 | if (! s->display.x->icon_label) | |
2755 | s->display.x->icon_label = XSTRING (s->name)->data; | |
2756 | ||
2757 | width = XStringWidth (s->display.x->icon_label, icon_font_info, 0, 0); | |
2758 | icon_window = XCreateWindow (s->display.x->parent_desc, | |
2759 | s->display.x->left_pos, | |
2760 | s->display.x->top_pos, | |
2761 | width + 10, icon_font_info->height + 10, | |
2762 | 2, BlackPixmap, WhitePixmap); | |
2763 | ||
2764 | if (icon_window == 0) | |
2765 | return 1; | |
2766 | ||
2767 | XSetIconWindow (s->display.x->window_desc, icon_window); | |
2768 | XSelectInput (icon_window, ExposeWindow | ExposeRegion | UnmapWindow | ButtonPressed); | |
2769 | ||
2770 | s->display.x->icon_desc = icon_window; | |
2771 | s->display.x->icon_bitmap_flag = 0; | |
2772 | s->display.x->icon_label = 0; | |
2773 | #endif /* HAVE_X11 */ | |
2774 | ||
2775 | return 0; | |
2776 | } | |
2777 | \f | |
4746118a JB |
2778 | /* Handling X errors. */ |
2779 | ||
2780 | /* A handler for SIGPIPE, when it occurs on the X server's connection. | |
2781 | This basically does an orderly shutdown of Emacs. */ | |
2782 | static SIGTYPE | |
2783 | x_death_handler () | |
2784 | { | |
2785 | if (_Xdebug) | |
2786 | abort (); | |
2787 | else | |
2788 | Fkill_emacs (make_number (70)); | |
2789 | } | |
2790 | ||
dc6f92b8 JB |
2791 | static char *x_proto_requests[] = |
2792 | { | |
2793 | "CreateWindow", | |
2794 | "ChangeWindowAttributes", | |
2795 | "GetWindowAttributes", | |
2796 | "DestroyWindow", | |
2797 | "DestroySubwindows", | |
2798 | "ChangeSaveSet", | |
2799 | "ReparentWindow", | |
2800 | "MapWindow", | |
2801 | "MapSubwindows", | |
2802 | "UnmapWindow", | |
2803 | "UnmapSubwindows", | |
2804 | "ConfigureWindow", | |
2805 | "CirculateWindow", | |
2806 | "GetGeometry", | |
2807 | "QueryTree", | |
2808 | "InternAtom", | |
2809 | "GetAtomName", | |
2810 | "ChangeProperty", | |
2811 | "DeleteProperty", | |
2812 | "GetProperty", | |
2813 | "ListProperties", | |
2814 | "SetSelectionOwner", | |
2815 | "GetSelectionOwner", | |
2816 | "ConvertSelection", | |
2817 | "SendEvent", | |
2818 | "GrabPointer", | |
2819 | "UngrabPointer", | |
2820 | "GrabButton", | |
2821 | "UngrabButton", | |
2822 | "ChangeActivePointerGrab", | |
2823 | "GrabKeyboard", | |
2824 | "UngrabKeyboard", | |
2825 | "GrabKey", | |
2826 | "UngrabKey", | |
2827 | "AllowEvents", | |
2828 | "GrabServer", | |
2829 | "UngrabServer", | |
2830 | "QueryPointer", | |
2831 | "GetMotionEvents", | |
2832 | "TranslateCoords", | |
2833 | "WarpPointer", | |
2834 | "SetInputFocus", | |
2835 | "GetInputFocus", | |
2836 | "QueryKeymap", | |
2837 | "OpenFont", | |
2838 | "CloseFont", | |
2839 | "QueryFont", | |
2840 | "QueryTextExtents", | |
2841 | "ListFonts", | |
2842 | "ListFontsWithInfo", | |
2843 | "SetFontPath", | |
2844 | "GetFontPath", | |
2845 | "CreatePixmap", | |
2846 | "FreePixmap", | |
2847 | "CreateGC", | |
2848 | "ChangeGC", | |
2849 | "CopyGC", | |
2850 | "SetDashes", | |
2851 | "SetClipRectangles", | |
2852 | "FreeGC", | |
2853 | "ClearArea", | |
2854 | "CopyArea", | |
2855 | "CopyPlane", | |
2856 | "PolyPoint", | |
2857 | "PolyLine", | |
2858 | "PolySegment", | |
2859 | "PolyRectangle", | |
2860 | "PolyArc", | |
2861 | "FillPoly", | |
2862 | "PolyFillRectangle", | |
2863 | "PolyFillArc", | |
2864 | "PutImage", | |
2865 | "GetImage", | |
2866 | "PolyText", | |
2867 | "PolyText", | |
2868 | "ImageText", | |
2869 | "ImageText", | |
2870 | "CreateColormap", | |
2871 | "FreeColormap", | |
2872 | "CopyColormapAndFree", | |
2873 | "InstallColormap", | |
2874 | "UninstallColormap", | |
2875 | "ListInstalledColormaps", | |
2876 | "AllocColor", | |
2877 | "AllocNamedColor", | |
2878 | "AllocColorCells", | |
2879 | "AllocColorPlanes", | |
2880 | "FreeColors", | |
2881 | "StoreColors", | |
2882 | "StoreNamedColor", | |
2883 | "QueryColors", | |
2884 | "LookupColor", | |
2885 | "CreateCursor", | |
2886 | "CreateGlyphCursor", | |
2887 | "FreeCursor", | |
2888 | "RecolorCursor", | |
2889 | "QueryBestSize", | |
2890 | "QueryExtension", | |
2891 | "ListExtensions", | |
2892 | "ChangeKeyboardMapping", | |
2893 | "GetKeyboardMapping", | |
2894 | "ChangeKeyboardControl", | |
2895 | "GetKeyboardControl", | |
2896 | "Bell", | |
2897 | "ChangePointerControl", | |
2898 | "GetPointerControl", | |
2899 | "SetScreenSaver", | |
2900 | "GetScreenSaver", | |
2901 | "ChangeHosts", | |
2902 | "ListHosts", | |
2903 | "SetAccessControl", | |
2904 | "SetCloseDownMode", | |
2905 | "KillClient", | |
2906 | "RotateProperties", | |
2907 | "ForceScreenSaver", | |
2908 | "SetPointerMapping", | |
2909 | "GetPointerMapping", | |
2910 | "SetModifierMapping", | |
2911 | "GetModifierMapping", | |
2912 | "NoOperation" | |
2913 | }; | |
2914 | ||
2915 | #define acceptable_x_error_p(type) ((type) == 94) | |
2916 | ||
2917 | x_handle_error_gracefully (event) | |
2918 | XErrorEvent *event; | |
2919 | { | |
2920 | char error_ptr[128]; | |
2921 | char *proto_ptr = x_proto_requests[event->request_code]; | |
2922 | char str[128]; | |
2923 | ||
2924 | XGetErrorText (x_current_display, event->error_code, error_ptr, 128); | |
2925 | sprintf (str, "X Protocol Error: %s on request: %s", error_ptr, proto_ptr); | |
2926 | TOTALLY_UNBLOCK_INPUT; | |
2927 | error (str); | |
2928 | } | |
2929 | ||
2930 | #if 0 | |
2931 | extern int x_selection_alloc_error; | |
2932 | extern int x_converting_selection; | |
2933 | #endif | |
2934 | ||
2935 | /* Handle X Errors. If the error is not traumatic, | |
2936 | just call error (). Otherwise print a (hopefully) interesting | |
2937 | message and quit. | |
2938 | ||
2939 | The arg to Fkill_emacs is an exit status value | |
2940 | and also prevents any questions. */ | |
2941 | ||
2942 | x_error_handler (disp, event) | |
2943 | Display *disp; | |
2944 | #ifdef HAVE_X11 | |
2945 | XErrorEvent *event; | |
2946 | ||
2947 | #define XlibDisplayIOError (1L << 0) | |
2948 | ||
2949 | #else | |
2950 | struct _XErrorEvent *event; | |
2951 | #endif | |
2952 | { | |
2953 | /* Here we use the standard X handlers. */ | |
2954 | ||
2955 | BLOCK_INPUT; | |
2956 | if (event && event->type == 0) /* 0 is the XError Event type. */ | |
2957 | { | |
2958 | #if 0 | |
2959 | #ifdef HAVE_X11 | |
2960 | if (event->request_code == BadAlloc && x_converting_selection) | |
2961 | x_selection_alloc_error = 1; | |
2962 | else | |
2963 | #endif | |
2964 | #endif | |
2965 | if (acceptable_x_error_p (event->request_code)) | |
2966 | x_handle_error_gracefully (event); | |
2967 | else | |
2968 | _XDefaultError (disp, event); | |
2969 | } | |
2970 | else | |
2971 | { | |
2972 | disp->flags |= XlibDisplayIOError; | |
2973 | _XDefaultIOError (disp); | |
2974 | } | |
2975 | UNBLOCK_INPUT; | |
2976 | ||
4746118a | 2977 | x_death_handler (); |
dc6f92b8 JB |
2978 | } |
2979 | ||
dc6f92b8 JB |
2980 | #if 0 |
2981 | static unsigned int x_wire_count; | |
2982 | x_trace_wire () | |
2983 | { | |
2984 | fprintf (stderr, "Lib call: %d\n", ++x_wire_count); | |
2985 | } | |
2986 | #endif | |
2987 | ||
2988 | \f | |
2989 | /* Set the font of the x-window specified by screen S | |
2990 | to the font named NEWNAME. This is safe to use | |
2991 | even before S has an actual x-window. */ | |
2992 | ||
2993 | #ifdef HAVE_X11 | |
2994 | ||
2995 | /* A table of all the fonts we have already loaded. */ | |
2996 | static XFontStruct **x_font_table; | |
2997 | ||
2998 | /* The current capacity of x_font_table. */ | |
2999 | static int x_font_table_size; | |
3000 | ||
3001 | /* The number of fonts actually stored in x_font_table. | |
3002 | x_font_table[n] is used and valid iff 0 <= n < n_fonts. | |
3003 | 0 <= n_fonts <= x_font_table_size. */ | |
3004 | static int n_fonts; | |
3005 | ||
3006 | x_new_font (s, fontname) | |
3007 | struct screen *s; | |
3008 | register char *fontname; | |
3009 | { | |
3010 | XFontStruct *temp; | |
3011 | int already_loaded; | |
3012 | int n_matching_fonts; | |
3013 | XFontStruct *font_info; | |
3014 | char **font_names; | |
3015 | ||
3016 | /* Get a list of all the fonts that match this name. Once we | |
3017 | have a list of matching fonts, we compare them against the fonts | |
3018 | we already have by comparing font ids. */ | |
3019 | font_names = (char **) XListFontsWithInfo (x_current_display, fontname, | |
3020 | 1024, &n_matching_fonts, | |
3021 | &font_info); | |
3022 | /* If the server couldn't find any fonts whose named matched fontname, | |
3023 | return an error code. */ | |
3024 | if (n_matching_fonts == 0) | |
3025 | return 1; | |
3026 | ||
90e65f07 | 3027 | /* See if we've already loaded a matching font. */ |
dc6f92b8 JB |
3028 | { |
3029 | int i, j; | |
3030 | ||
3031 | already_loaded = 0; | |
3032 | for (i = 0; i < n_fonts; i++) | |
3033 | for (j = 0; j < n_matching_fonts; j++) | |
3034 | if (x_font_table[i]->fid == font_info[j].fid) | |
3035 | { | |
3036 | already_loaded = i; | |
3037 | goto found_font; | |
3038 | } | |
3039 | } | |
3040 | found_font: | |
3041 | ||
3042 | /* If we have, just return it from the table. */ | |
3043 | if (already_loaded) | |
90e65f07 JB |
3044 | s->display.x->font = x_font_table[already_loaded]; |
3045 | ||
dc6f92b8 JB |
3046 | /* Otherwise, load the font and add it to the table. */ |
3047 | else | |
3048 | { | |
3049 | XFontStruct *font; | |
3050 | ||
3051 | font = (XFontStruct *) XLoadQueryFont (x_current_display, fontname); | |
3052 | if (! font) | |
3053 | return 1; | |
3054 | ||
3055 | /* Do we need to create the table? */ | |
3056 | if (x_font_table_size == 0) | |
3057 | { | |
3058 | x_font_table_size = 16; | |
3059 | x_font_table | |
3060 | = (XFontStruct **) xmalloc (x_font_table_size | |
3061 | * sizeof (x_font_table[0])); | |
3062 | } | |
3063 | /* Do we need to grow the table? */ | |
3064 | else if (n_fonts >= x_font_table_size) | |
3065 | { | |
90e65f07 | 3066 | x_font_table_size *= 2; |
dc6f92b8 JB |
3067 | x_font_table |
3068 | = (XFontStruct **) xrealloc (x_font_table, | |
3069 | (x_font_table_size | |
3070 | * sizeof (x_font_table[0]))); | |
3071 | } | |
3072 | ||
3073 | s->display.x->font = x_font_table[n_fonts++] = font; | |
3074 | } | |
3075 | ||
3076 | /* Free the information from XListFontsWithInfo. The data | |
3077 | we actually retain comes from XLoadQueryFont. */ | |
3078 | XFreeFontInfo (font_names, font_info, n_matching_fonts); | |
3079 | ||
3080 | /* Now make the screen display the given font. */ | |
3081 | if (s->display.x->window_desc != 0) | |
3082 | { | |
3083 | XSetFont (x_current_display, s->display.x->normal_gc, | |
3084 | s->display.x->font->fid); | |
3085 | XSetFont (x_current_display, s->display.x->reverse_gc, | |
3086 | s->display.x->font->fid); | |
3087 | XSetFont (x_current_display, s->display.x->cursor_gc, | |
3088 | s->display.x->font->fid); | |
3089 | ||
3090 | x_set_window_size (s, s->width, s->height); | |
3091 | } | |
3092 | ||
3093 | return 0; | |
3094 | } | |
3095 | #else | |
3096 | x_new_font (s, newname) | |
3097 | struct screen *s; | |
3098 | register char *newname; | |
3099 | { | |
3100 | FONT_TYPE *temp; | |
3101 | int mask; | |
3102 | ||
3103 | temp = XGetFont (newname); | |
3104 | if (temp == (FONT_TYPE *) 0) | |
3105 | return 1; | |
3106 | ||
3107 | if (s->display.x->font) | |
3108 | XLoseFont (s->display.x->font); | |
3109 | ||
3110 | s->display.x->font = temp; | |
3111 | ||
3112 | if (s->display.x->window_desc != 0) | |
3113 | x_set_window_size (s, s->width, s->height); | |
3114 | ||
3115 | return 0; | |
3116 | } | |
3117 | #endif | |
3118 | \f | |
3119 | x_calc_absolute_position (s) | |
3120 | struct screen *s; | |
3121 | { | |
3122 | #ifdef HAVE_X11 | |
3123 | if (s->display.x->left_pos < 0) | |
3124 | s->display.x->left_pos | |
3125 | = XINT (x_screen_width) - PIXEL_WIDTH (s) + s->display.x->left_pos; | |
3126 | ||
3127 | if (s->display.x->top_pos < 0) | |
3128 | s->display.x->top_pos | |
3129 | = XINT (x_screen_height) - PIXEL_HEIGHT (s) + s->display.x->top_pos; | |
3130 | #else /* X10 */ | |
3131 | WINDOWINFO_TYPE parentinfo; | |
3132 | ||
3133 | XGetWindowInfo (s->display.x->window_desc, &parentinfo); | |
3134 | ||
3135 | if (s->display.x->left_pos < 0) | |
3136 | s->display.x->left_pos = parentinfo.width + (s->display.x->left_pos + 1) | |
3137 | - PIXEL_WIDTH (s) - 2 * s->display.x->internal_border_width; | |
3138 | ||
3139 | if (s->display.x->top_pos < 0) | |
3140 | s->display.x->top_pos = parentinfo.height + (s->display.x->top_pos + 1) | |
3141 | - PIXEL_HEIGHT (s) - 2 * s->display.x->internal_border_width; | |
3142 | #endif /* X10 */ | |
3143 | } | |
3144 | ||
3145 | x_set_offset (s, xoff, yoff) | |
3146 | struct screen *s; | |
3147 | register int xoff, yoff; | |
3148 | { | |
3149 | s->display.x->top_pos = yoff; | |
3150 | s->display.x->left_pos = xoff; | |
3151 | x_calc_absolute_position (s); | |
3152 | ||
3153 | BLOCK_INPUT; | |
3154 | XMoveWindow (XDISPLAY s->display.x->window_desc, | |
3155 | s->display.x->left_pos, s->display.x->top_pos); | |
3156 | #ifdef HAVE_X11 | |
3157 | x_wm_set_size_hint (s, 0); | |
3158 | #endif | |
3159 | UNBLOCK_INPUT; | |
3160 | } | |
3161 | ||
3162 | /* Call this to change the size of screen S's x-window. */ | |
3163 | ||
3164 | x_set_window_size (s, cols, rows) | |
3165 | struct screen *s; | |
3166 | register int cols, rows; | |
3167 | { | |
3168 | int pixelwidth, pixelheight; | |
3169 | int mask; | |
3170 | int ibw = s->display.x->internal_border_width; | |
3171 | ||
3172 | BLOCK_INPUT; | |
3173 | ||
3174 | /* ??? Who DOES worry about minimum reasonable sizes? */ | |
3175 | pixelwidth = (cols * FONT_WIDTH (s->display.x->font) + 2 * ibw | |
3176 | + s->display.x->v_scrollbar_width); | |
3177 | pixelheight = (rows * FONT_HEIGHT (s->display.x->font) + 2 * ibw | |
3178 | + s->display.x->h_scrollbar_height); | |
3179 | ||
3180 | #ifdef HAVE_X11 | |
3181 | x_wm_set_size_hint (s, 0); | |
3182 | #endif /* HAVE_X11 */ | |
3183 | XChangeWindowSize (s->display.x->window_desc, pixelwidth, pixelheight); | |
3184 | XFlushQueue (); | |
3185 | UNBLOCK_INPUT; | |
3186 | } | |
3187 | ||
3188 | #ifndef HAVE_X11 | |
3189 | x_set_resize_hint (s) | |
3190 | struct screen *s; | |
3191 | { | |
3192 | ||
3193 | XSetResizeHint (s->display.x->window_desc, 2 * s->display.x->internal_border_width, | |
3194 | 2 * s->display.x->internal_border_width, | |
3195 | FONT_WIDTH (s->display.x->font), FONT_HEIGHT (s->display.x->font)); | |
3196 | } | |
3197 | #endif /* not HAVE_X11 */ | |
3198 | \f | |
3199 | ||
3200 | x_set_mouse_position (s, x, y) | |
3201 | struct screen *s; | |
3202 | int x, y; | |
3203 | { | |
3204 | int pix_x, pix_y; | |
3205 | ||
3206 | x_raise_screen (s); | |
3207 | ||
3208 | if (x < 0) | |
3209 | pix_x = (SCREEN_WIDTH (s) | |
3210 | * FONT_WIDTH (s->display.x->font) | |
3211 | + 2 * s->display.x->internal_border_width | |
3212 | + s->display.x->v_scrollbar_width) / 2; | |
3213 | else | |
3214 | pix_x = x * FONT_WIDTH (s->display.x->font) + 2; /* add 2 pixels to each | |
3215 | dimension to move the | |
3216 | mouse into the char | |
3217 | cell */ | |
3218 | ||
3219 | if (y < 0) | |
3220 | pix_y = (SCREEN_HEIGHT (s) | |
3221 | * FONT_HEIGHT (s->display.x->font) | |
3222 | + 2 * s->display.x->internal_border_width | |
3223 | + s->display.x->h_scrollbar_height) / 2; | |
3224 | else | |
3225 | pix_y = y * FONT_HEIGHT (s->display.x->font) + 2; | |
3226 | ||
3227 | BLOCK_INPUT; | |
3228 | x_mouse_x = x; | |
3229 | x_mouse_y = y; | |
3230 | ||
3231 | XWarpMousePointer (s->display.x->window_desc, pix_x, pix_y); | |
3232 | UNBLOCK_INPUT; | |
3233 | } | |
3234 | ||
3235 | #ifdef HAVE_X11 | |
3236 | x_focus_on_screen (s) | |
3237 | struct screen *s; | |
3238 | { | |
3239 | x_raise_screen (s); | |
6d4238f3 JB |
3240 | #if 0 |
3241 | /* I don't think that the ICCCM allows programs to do things like this | |
3242 | without the interaction of the window manager. Whatever you end up | |
3243 | doing with this code, do it to x_unfocus_screen too. */ | |
dc6f92b8 JB |
3244 | XSetInputFocus (x_current_display, s->display.x->window_desc, |
3245 | RevertToPointerRoot, CurrentTime); | |
6d4238f3 | 3246 | #endif |
dc6f92b8 JB |
3247 | } |
3248 | ||
3249 | x_unfocus_screen (s) | |
3250 | struct screen *s; | |
3251 | { | |
6d4238f3 JB |
3252 | #if 0 |
3253 | /* Look at the remarks in x_focus_on_screen. */ | |
dc6f92b8 JB |
3254 | if (x_focus_screen == s) |
3255 | XSetInputFocus (x_current_display, PointerRoot, | |
3256 | RevertToPointerRoot, CurrentTime); | |
6d4238f3 | 3257 | #endif |
dc6f92b8 JB |
3258 | } |
3259 | ||
3260 | #endif | |
3261 | ||
3262 | /* Raise screen S. */ | |
3263 | ||
3264 | x_raise_screen (s) | |
3265 | struct screen *s; | |
3266 | { | |
3267 | if (s->visible) | |
3268 | { | |
3269 | BLOCK_INPUT; | |
3270 | XRaiseWindow (XDISPLAY s->display.x->window_desc); | |
3271 | XFlushQueue (); | |
3272 | UNBLOCK_INPUT; | |
3273 | } | |
3274 | } | |
3275 | ||
3276 | /* Lower screen S. */ | |
3277 | ||
3278 | x_lower_screen (s) | |
3279 | struct screen *s; | |
3280 | { | |
3281 | if (s->visible) | |
3282 | { | |
3283 | BLOCK_INPUT; | |
3284 | XLowerWindow (XDISPLAY s->display.x->window_desc); | |
3285 | XFlushQueue (); | |
3286 | UNBLOCK_INPUT; | |
3287 | } | |
3288 | } | |
3289 | ||
3290 | /* Change from withdrawn state to mapped state. */ | |
3291 | ||
3292 | x_make_screen_visible (s) | |
3293 | struct screen *s; | |
3294 | { | |
3295 | int mask; | |
3296 | ||
dc6f92b8 | 3297 | BLOCK_INPUT; |
dc6f92b8 | 3298 | |
90e65f07 JB |
3299 | if (! SCREEN_VISIBLE_P (s)) |
3300 | { | |
3301 | #ifdef HAVE_X11 | |
3302 | if (! EQ (Vx_no_window_manager, Qt)) | |
3303 | x_wm_set_window_state (s, NormalState); | |
dc6f92b8 | 3304 | |
90e65f07 JB |
3305 | XMapWindow (XDISPLAY s->display.x->window_desc); |
3306 | if (s->display.x->v_scrollbar != 0 || s->display.x->h_scrollbar != 0) | |
3307 | XMapSubwindows (x_current_display, s->display.x->window_desc); | |
dc6f92b8 | 3308 | #else |
90e65f07 JB |
3309 | XMapWindow (XDISPLAY s->display.x->window_desc); |
3310 | if (s->display.x->icon_desc != 0) | |
3311 | XUnmapWindow (s->display.x->icon_desc); | |
dc6f92b8 | 3312 | |
90e65f07 JB |
3313 | /* Handled by the MapNotify event for X11 */ |
3314 | s->visible = 1; | |
3315 | s->iconified = 0; | |
dc6f92b8 | 3316 | |
90e65f07 JB |
3317 | /* NOTE: this may cause problems for the first screen. */ |
3318 | XTcursor_to (0, 0); | |
3319 | #endif /* not HAVE_X11 */ | |
3320 | } | |
dc6f92b8 | 3321 | |
dc6f92b8 | 3322 | XFlushQueue (); |
90e65f07 | 3323 | |
dc6f92b8 JB |
3324 | UNBLOCK_INPUT; |
3325 | } | |
3326 | ||
3327 | /* Change from mapped state to withdrawn state. */ | |
3328 | ||
3329 | x_make_screen_invisible (s) | |
3330 | struct screen *s; | |
3331 | { | |
3332 | int mask; | |
3333 | ||
3334 | if (! s->visible) | |
3335 | return; | |
3336 | ||
3337 | BLOCK_INPUT; | |
3338 | #ifdef HAVE_X11 | |
3339 | #if 0 | |
3340 | if (! EQ (Vx_no_window_manager, Qt)) | |
3341 | { | |
3342 | XUnmapEvent unmap; | |
3343 | ||
3344 | unmap.type = UnmapNotify; | |
3345 | unmap.window = s->display.x->window_desc; | |
3346 | unmap.event = DefaultRootWindow (x_current_display); | |
3347 | unmap.from_configure = False; | |
3348 | XSendEvent (x_current_display, DefaultRootWindow (x_current_display), | |
3349 | False, SubstructureRedirectMask|SubstructureNotifyMask, | |
3350 | &unmap); | |
3351 | } | |
3352 | ||
3353 | /* The new function below does the same as the above code, plus unmapping | |
3354 | the window. Sending the event without actually unmapping can make | |
3355 | the window manager start ignoring the window (i.e., no more title bar, | |
3356 | icon manager stuff.) */ | |
3357 | #endif | |
3358 | ||
3359 | /* New function available with R4 */ | |
3360 | if (! XWithdrawWindow (x_current_display, s->display.x->window_desc, | |
3361 | DefaultScreen (x_current_display))) | |
3362 | { | |
3363 | UNBLOCK_INPUT_RESIGNAL; | |
3364 | error ("Can't notify window manager of iconification."); | |
3365 | } | |
3366 | ||
3367 | #else | |
3368 | XUnmapWindow (XDISPLAY s->display.x->window_desc); | |
3369 | ||
3370 | s->visible = 0; /* Handled by the UnMap event for X11 */ | |
3371 | if (s->display.x->icon_desc != 0) | |
3372 | XUnmapWindow (XDISPLAY s->display.x->icon_desc); | |
3373 | #endif /* not HAVE_X11 */ | |
3374 | ||
3375 | XFlushQueue (); | |
3376 | UNBLOCK_INPUT; | |
3377 | } | |
3378 | ||
3379 | /* Window manager communication. Created in Fx_open_connection. */ | |
3380 | extern Atom Xatom_wm_change_state; | |
3381 | ||
3382 | /* Change window state from mapped to iconified. */ | |
3383 | ||
3384 | x_iconify_screen (s) | |
3385 | struct screen *s; | |
3386 | { | |
3387 | int mask; | |
3388 | ||
3389 | if (s->iconified) | |
3390 | return; | |
3391 | ||
3392 | BLOCK_INPUT; | |
3393 | ||
3394 | #ifdef HAVE_X11 | |
3395 | if (! EQ (Vx_no_window_manager, Qt)) | |
3396 | if (! XIconifyWindow (x_current_display, s->display.x->window_desc, | |
3397 | DefaultScreen (x_current_display))) | |
3398 | { | |
3399 | UNBLOCK_INPUT_RESIGNAL; | |
3400 | error ("Can't notify window manager of iconification."); | |
3401 | } | |
3402 | ||
3403 | s->iconified = 1; | |
3404 | ||
3405 | #if 0 | |
3406 | { | |
3407 | XClientMessageEvent message; | |
3408 | ||
3409 | message.window = s->display.x->window_desc; | |
3410 | message.type = ClientMessage; | |
3411 | message.message_type = Xatom_wm_change_state; | |
3412 | message.format = 32; | |
3413 | message.data.l[0] = IconicState; | |
3414 | ||
3415 | if (! XSendEvent (x_current_display, | |
3416 | DefaultRootWindow (x_current_display), | |
3417 | False, | |
3418 | SubstructureRedirectMask | SubstructureNotifyMask, | |
3419 | &message)) | |
3420 | { | |
3421 | UNBLOCK_INPUT_RESIGNAL; | |
3422 | error ("Can't notify window manager of iconification."); | |
3423 | } | |
3424 | } | |
3425 | #endif | |
3426 | #else /* X10 */ | |
3427 | XUnmapWindow (XDISPLAY s->display.x->window_desc); | |
3428 | ||
3429 | s->visible = 0; /* Handled in the UnMap event for X11. */ | |
3430 | if (s->display.x->icon_desc != 0) | |
3431 | { | |
3432 | XMapWindow (XDISPLAY s->display.x->icon_desc); | |
3433 | refreshicon (s); | |
3434 | } | |
3435 | #endif /* X10 */ | |
3436 | ||
3437 | XFlushQueue (); | |
3438 | UNBLOCK_INPUT; | |
3439 | } | |
3440 | ||
3441 | /* Destroy the X window of screen S. | |
3442 | DISPL is the former s->display (since s->display | |
3443 | has already been nulled out). */ | |
3444 | ||
3445 | x_destroy_window (s, displ) | |
3446 | struct screen *s; | |
3447 | union display displ; | |
3448 | { | |
3449 | int mask; | |
3450 | ||
3451 | BLOCK_INPUT; | |
3452 | if (displ.x->icon_desc != 0) | |
3453 | XDestroyWindow (XDISPLAY displ.x->icon_desc); | |
3454 | XDestroyWindow (XDISPLAY displ.x->window_desc); | |
3455 | XFlushQueue (); | |
3456 | UNBLOCK_INPUT; | |
3457 | ||
3458 | free (displ.x); | |
3459 | if (s == x_focus_screen) | |
3460 | x_focus_screen = 0; | |
6d4238f3 JB |
3461 | if (s == x_highlight_screen) |
3462 | x_highlight_screen = 0; | |
dc6f92b8 JB |
3463 | } |
3464 | \f | |
3465 | #ifndef HAVE_X11 | |
3466 | ||
3467 | /* Manage event queues. | |
3468 | ||
3469 | This code is only used by the X10 support. | |
3470 | ||
3471 | We cannot leave events in the X queue and get them when we are ready | |
3472 | because X does not provide a subroutine to get only a certain kind | |
3473 | of event but not block if there are no queued events of that kind. | |
3474 | ||
3475 | Therefore, we must examine events as they come in and copy events | |
3476 | of certain kinds into our private queues. | |
3477 | ||
3478 | All ExposeRegion events are put in x_expose_queue. | |
3479 | All ButtonPressed and ButtonReleased events are put in x_mouse_queue. */ | |
3480 | ||
3481 | ||
3482 | /* Write the event *P_XREP into the event queue *QUEUE. | |
3483 | If the queue is full, do nothing, but return nonzero. */ | |
3484 | ||
3485 | int | |
3486 | enqueue_event (p_xrep, queue) | |
3487 | register XEvent *p_xrep; | |
3488 | register struct event_queue *queue; | |
3489 | { | |
3490 | int newindex = queue->windex + 1; | |
3491 | if (newindex == EVENT_BUFFER_SIZE) | |
3492 | newindex = 0; | |
3493 | if (newindex == queue->rindex) | |
3494 | return -1; | |
3495 | queue->xrep[queue->windex] = *p_xrep; | |
3496 | queue->windex = newindex; | |
3497 | return 0; | |
3498 | } | |
3499 | ||
3500 | /* Fetch the next event from queue *QUEUE and store it in *P_XREP. | |
3501 | If *QUEUE is empty, do nothing and return 0. */ | |
3502 | ||
3503 | int | |
3504 | dequeue_event (p_xrep, queue) | |
3505 | register XEvent *p_xrep; | |
3506 | register struct event_queue *queue; | |
3507 | { | |
3508 | if (queue->windex == queue->rindex) | |
3509 | return 0; | |
3510 | *p_xrep = queue->xrep[queue->rindex++]; | |
3511 | if (queue->rindex == EVENT_BUFFER_SIZE) | |
3512 | queue->rindex = 0; | |
3513 | return 1; | |
3514 | } | |
3515 | ||
3516 | /* Return the number of events buffered in *QUEUE. */ | |
3517 | ||
3518 | int | |
3519 | queue_event_count (queue) | |
3520 | register struct event_queue *queue; | |
3521 | { | |
3522 | int tem = queue->windex - queue->rindex; | |
3523 | if (tem >= 0) | |
3524 | return tem; | |
3525 | return EVENT_BUFFER_SIZE + tem; | |
3526 | } | |
3527 | ||
3528 | /* Return nonzero if mouse input is pending. */ | |
3529 | ||
3530 | int | |
3531 | mouse_event_pending_p () | |
3532 | { | |
3533 | return queue_event_count (&x_mouse_queue); | |
3534 | } | |
3535 | #endif | |
3536 | \f | |
3537 | #ifdef HAVE_X11 | |
3538 | ||
3539 | x_wm_set_size_hint (s, prompting) | |
3540 | struct screen *s; | |
3541 | long prompting; | |
3542 | { | |
3543 | XSizeHints size_hints; | |
3544 | Window window = s->display.x->window_desc; | |
3545 | ||
3546 | size_hints.flags = PResizeInc | PMinSize | PMaxSize; | |
3547 | ||
3548 | flexlines = s->height; | |
3549 | ||
3550 | size_hints.x = s->display.x->left_pos; | |
3551 | size_hints.y = s->display.x->top_pos; | |
3552 | size_hints.height = PIXEL_HEIGHT (s); | |
3553 | size_hints.width = PIXEL_WIDTH (s); | |
3554 | size_hints.width_inc = FONT_WIDTH (s->display.x->font); | |
3555 | size_hints.height_inc = FONT_HEIGHT (s->display.x->font); | |
3556 | size_hints.base_width = (2 * s->display.x->internal_border_width) | |
3557 | + s->display.x->v_scrollbar_width; | |
3558 | size_hints.base_height = (2 * s->display.x->internal_border_width) | |
3559 | + s->display.x->h_scrollbar_height; | |
3560 | size_hints.min_width = size_hints.base_width + size_hints.width_inc; | |
3561 | size_hints.min_height = size_hints.base_height + size_hints.height_inc; | |
3562 | size_hints.max_width = x_screen_width | |
3563 | - ((2 * s->display.x->internal_border_width) | |
3564 | + s->display.x->v_scrollbar_width); | |
3565 | size_hints.max_height = x_screen_height | |
3566 | - ((2 * s->display.x->internal_border_width) | |
3567 | + s->display.x->h_scrollbar_height); | |
3568 | ||
3569 | if (prompting) | |
3570 | size_hints.flags |= prompting; | |
3571 | else | |
3572 | { | |
3573 | XSizeHints hints; /* Sometimes I hate X Windows... */ | |
3574 | ||
3575 | XGetNormalHints (x_current_display, window, &hints); | |
3576 | if (hints.flags & PSize) | |
3577 | size_hints.flags |= PSize; | |
3578 | if (hints.flags & PPosition) | |
3579 | size_hints.flags |= PPosition; | |
3580 | if (hints.flags & USPosition) | |
3581 | size_hints.flags |= USPosition; | |
3582 | if (hints.flags & USSize) | |
3583 | size_hints.flags |= USSize; | |
3584 | } | |
3585 | ||
3586 | #if 0 /* R3 */ | |
3587 | XSetNormalHints (x_current_display, window, &size_hints); | |
3588 | #endif | |
3589 | XSetWMNormalHints (x_current_display, window, &size_hints); | |
3590 | } | |
3591 | ||
3592 | /* Used for IconicState or NormalState */ | |
3593 | x_wm_set_window_state (s, state) | |
3594 | struct screen *s; | |
3595 | int state; | |
3596 | { | |
3597 | XWMHints wm_hints; | |
3598 | Window window = s->display.x->window_desc; | |
3599 | ||
3600 | wm_hints.flags = StateHint; | |
3601 | wm_hints.initial_state = state; | |
3602 | XSetWMHints (x_current_display, window, &wm_hints); | |
3603 | } | |
3604 | ||
3605 | x_wm_set_icon_pixmap (s, icon_pixmap) | |
3606 | struct screen *s; | |
3607 | Pixmap icon_pixmap; | |
3608 | { | |
3609 | XWMHints wm_hints; | |
3610 | Window window = s->display.x->window_desc; | |
3611 | ||
3612 | wm_hints.flags = IconPixmapHint; | |
3613 | wm_hints.icon_pixmap = icon_pixmap; | |
3614 | XSetWMHints (x_current_display, window, &wm_hints); | |
3615 | } | |
3616 | ||
3617 | x_wm_set_icon_position (s, icon_x, icon_y) | |
3618 | struct screen *s; | |
3619 | int icon_x, icon_y; | |
3620 | { | |
3621 | XWMHints wm_hints; | |
3622 | Window window = s->display.x->window_desc; | |
3623 | ||
3624 | wm_hints.flags = IconPositionHint; | |
3625 | wm_hints.icon_x = icon_x; | |
3626 | wm_hints.icon_y = icon_y; | |
3627 | XSetWMHints (x_current_display, window, &wm_hints); | |
3628 | } | |
3629 | ||
3630 | \f | |
dc6f92b8 JB |
3631 | void |
3632 | x_term_init (display_name) | |
3633 | char *display_name; | |
3634 | { | |
3635 | Lisp_Object screen; | |
3636 | char *defaultvalue; | |
3637 | #ifdef F_SETOWN | |
3638 | extern int old_fcntl_owner; | |
3639 | #endif | |
6d4238f3 JB |
3640 | |
3641 | x_focus_screen = x_highlight_screen = 0; | |
dc6f92b8 JB |
3642 | |
3643 | x_current_display = XOpenDisplay (display_name); | |
3644 | if (x_current_display == 0) | |
3645 | fatal ("X server %s not responding; check the DISPLAY environment variable or use \"-d\"\n", | |
3646 | display_name); | |
3647 | ||
3648 | #ifdef HAVE_X11 | |
3649 | { | |
60fb3ee1 JB |
3650 | int hostname_size = MAXHOSTNAMELEN + 1; |
3651 | ||
3652 | hostname = (char *) xmalloc (hostname_size); | |
3653 | ||
dc6f92b8 JB |
3654 | #if 0 |
3655 | XSetAfterFunction (x_current_display, x_trace_wire); | |
3656 | #endif | |
3657 | ||
55123275 | 3658 | invocation_name = Ffile_name_nondirectory (Fcar (Vcommand_line_args)); |
60fb3ee1 JB |
3659 | |
3660 | /* Try to get the host name; if the buffer is too short, try | |
3661 | again. Apparently, the only indication gethostname gives of | |
3662 | whether the buffer was large enough is the presence or absence | |
3663 | of a '\0' in the string. Eech. */ | |
3664 | for (;;) | |
3665 | { | |
3666 | gethostname (hostname, hostname_size - 1); | |
3667 | hostname[hostname_size - 1] = '\0'; | |
3668 | ||
3669 | /* Was the buffer large enough for gethostname to store the '\0'? */ | |
3670 | if (strlen (hostname) < hostname_size - 1) | |
3671 | break; | |
3672 | ||
3673 | hostname_size <<= 1; | |
3674 | hostname = (char *) xrealloc (hostname, hostname_size); | |
3675 | } | |
3676 | x_id_name = (char *) xmalloc (XSTRING (invocation_name)->size | |
3677 | + strlen (hostname) | |
3678 | + 2); | |
3679 | sprintf (x_id_name, "%s@%s", XSTRING (invocation_name)->data, hostname); | |
dc6f92b8 JB |
3680 | } |
3681 | ||
3682 | dup2 (ConnectionNumber (x_current_display), 0); | |
6d4238f3 JB |
3683 | |
3684 | #ifndef SYSV_STREAMS | |
3685 | /* Streams somehow keeps track of which descriptor number | |
3686 | is being used to talk to X. So it is not safe to substitute | |
3687 | descriptor 0. But it is safe to make descriptor 0 a copy of it. */ | |
dc6f92b8 | 3688 | close (ConnectionNumber (x_current_display)); |
6d4238f3 JB |
3689 | ConnectionNumber (x_current_display) = 0; /* Looks a little strange? |
3690 | * check the def of the macro; | |
3691 | * it is a genuine lvalue */ | |
3692 | #endif /* not SYSV_STREAMS */ | |
3693 | ||
dc6f92b8 JB |
3694 | #endif /* HAVE_X11 */ |
3695 | ||
3696 | #ifdef F_SETOWN | |
3697 | old_fcntl_owner = fcntl (0, F_GETOWN, 0); | |
3698 | #ifdef F_SETOWN_SOCK_NEG | |
3699 | fcntl (0, F_SETOWN, -getpid ()); /* stdin is a socket here */ | |
3700 | #else | |
3701 | fcntl (0, F_SETOWN, getpid ()); | |
3702 | #endif /* F_SETOWN_SOCK_NEG */ | |
3703 | #endif /* F_SETOWN */ | |
3704 | ||
3705 | #ifdef SIGIO | |
3706 | init_sigio (); | |
3707 | #endif | |
3708 | ||
3709 | /* Must use interrupt input because we cannot otherwise | |
3710 | arrange for C-g to be noticed immediately. | |
3711 | We cannot connect it to SIGINT. */ | |
3712 | Fset_input_mode (Qt, Qnil, Qt, Qnil); | |
3713 | ||
3714 | expose_all_windows = 0; | |
3715 | ||
3716 | clear_screen_hook = XTclear_screen; | |
3717 | clear_end_of_line_hook = XTclear_end_of_line; | |
3718 | ins_del_lines_hook = XTins_del_lines; | |
3719 | change_line_highlight_hook = XTchange_line_highlight; | |
3720 | insert_glyphs_hook = XTinsert_glyphs; | |
3721 | write_glyphs_hook = XTwrite_glyphs; | |
3722 | delete_glyphs_hook = XTdelete_glyphs; | |
3723 | ring_bell_hook = XTring_bell; | |
3724 | reset_terminal_modes_hook = XTreset_terminal_modes; | |
3725 | set_terminal_modes_hook = XTset_terminal_modes; | |
3726 | update_begin_hook = XTupdate_begin; | |
3727 | update_end_hook = XTupdate_end; | |
3728 | set_terminal_window_hook = XTset_terminal_window; | |
3729 | read_socket_hook = XTread_socket; | |
3730 | cursor_to_hook = XTcursor_to; | |
3731 | reassert_line_highlight_hook = XTreassert_line_highlight; | |
6d4238f3 | 3732 | screen_rehighlight_hook = XTscreen_rehighlight; |
90e65f07 | 3733 | mouse_position_hook = XTmouse_position; |
dc6f92b8 JB |
3734 | |
3735 | scroll_region_ok = 1; /* we'll scroll partial screens */ | |
3736 | char_ins_del_ok = 0; /* just as fast to write the line */ | |
3737 | line_ins_del_ok = 1; /* we'll just blt 'em */ | |
3738 | fast_clear_end_of_line = 1; /* X does this well */ | |
3739 | memory_below_screen = 0; /* we don't remember what scrolls | |
3740 | off the bottom */ | |
3741 | baud_rate = 19200; | |
3742 | ||
dc6f92b8 JB |
3743 | XHandleError (x_error_handler); |
3744 | XHandleIOError (x_error_handler); | |
3745 | ||
3746 | /* Disable Window Change signals; they are handled by X events. */ | |
3747 | #ifdef SIGWINCH | |
3748 | signal (SIGWINCH, SIG_DFL); | |
3749 | #endif /* SIGWINCH */ | |
3750 | ||
4746118a | 3751 | signal (SIGPIPE, x_death_handler); |
dc6f92b8 | 3752 | } |
55123275 JB |
3753 | |
3754 | void | |
3755 | syms_of_xterm () | |
3756 | { | |
3757 | staticpro (&invocation_name); | |
3758 | invocation_name = Qnil; | |
55123275 | 3759 | } |
dc6f92b8 JB |
3760 | #endif /* HAVE_X11 */ |
3761 | #endif /* HAVE_X_WINDOWS */ |