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Revision: 1.156
Committed: Mon Jan 2 18:20:23 2006 UTC (18 years, 5 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.155: +14 -1 lines
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# Content
1 /*--------------------------------*-C-*---------------------------------*
2 * File: main.C
3 *----------------------------------------------------------------------*
4 *
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 1992 John Bovey, University of Kent at Canterbury <jdb@ukc.ac.uk>
7 * - original version
8 * Copyright (c) 1994 Robert Nation <nation@rocket.sanders.lockheed.com>
9 * - extensive modifications
10 * Copyright (c) 1995 Garrett D'Amore <garrett@netcom.com>
11 * Copyright (c) 1997 mj olesen <olesen@me.QueensU.CA>
12 * - extensive modifications
13 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
14 * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
15 * - extensive modifications
16 * Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com>
17 *
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version.
22 *
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 *---------------------------------------------------------------------*/
32
33 #include "../config.h" /* NECESSARY */
34 #include "rxvt.h" /* NECESSARY */
35 #include "keyboard.h"
36 #include "rxvtperl.h"
37
38 #include <limits>
39
40 #include <csignal>
41 #include <cstring>
42
43 #ifdef TTY_GID_SUPPORT
44 # include <grp.h>
45 #endif
46
47 #ifdef HAVE_TERMIOS_H
48 # include <termios.h>
49 #endif
50
51 vector<rxvt_term *> rxvt_term::termlist;
52
53 static char curlocale[128], savelocale[128];
54
55 bool
56 rxvt_set_locale (const char *locale)
57 {
58 if (!locale || !strncmp (locale, curlocale, 128))
59 return false;
60
61 strncpy (curlocale, locale, 128);
62 setlocale (LC_CTYPE, curlocale);
63 return true;
64 }
65
66 bool
67 rxvt_push_locale (const char *locale)
68 {
69 strcpy (savelocale, curlocale);
70 rxvt_set_locale (locale);
71 }
72
73 void
74 rxvt_pop_locale ()
75 {
76 rxvt_set_locale (savelocale);
77 }
78
79 #if ENABLE_COMBINING
80 class rxvt_composite_vec rxvt_composite;
81
82 text_t rxvt_composite_vec::compose (unicode_t c1, unicode_t c2)
83 {
84 compose_char *cc;
85
86 // break compose chains, as stupid readline really likes to duplicate
87 // composing characters for some reason near the end of a line.
88 cc = (*this)[c1];
89 while (cc)
90 {
91 if (cc->c2 == c2) return c1;
92 cc = (*this)[cc->c1];
93 }
94
95 // check to see wether this combination already exists otherwise
96 for (cc = v.end (); cc-- > v.begin (); )
97 {
98 if (cc->c1 == c1 && cc->c2 == c2)
99 return COMPOSE_LO + (cc - v.begin ());
100 }
101
102 // allocate a new combination
103 if (v.size () == COMPOSE_HI - COMPOSE_LO + 1)
104 {
105 static int seen;
106
107 if (!seen++)
108 fprintf (stderr, "too many unrepresentable composite characters, try --enable-unicode3\n");
109
110 return REPLACEMENT_CHAR;
111 }
112
113 v.push_back (compose_char (c1, c2));
114
115 return v.size () - 1 + COMPOSE_LO;
116 }
117
118 int rxvt_composite_vec::expand (unicode_t c, wchar_t *r)
119 {
120 compose_char *cc = (*this)[c];
121
122 if (!cc)
123 {
124 if (r) *r = c;
125 return 1;
126 }
127
128 int len = expand (cc->c1, r);
129
130 if (r) r += len;
131
132 if (cc->c2 != NOCHAR)
133 {
134 len++;
135 if (r) *r++ = cc->c2;
136 }
137
138 return len;
139
140 }
141 #endif
142
143 rxvt_term::rxvt_term ()
144 :
145 #if TRANSPARENT
146 rootwin_ev (this, &rxvt_term::rootwin_cb),
147 #endif
148 #ifdef HAVE_SCROLLBARS
149 scrollbar_ev (this, &rxvt_term::x_cb),
150 #endif
151 #ifdef MENUBAR
152 menubar_ev (this, &rxvt_term::x_cb),
153 #endif
154 #ifdef CURSOR_BLINK
155 cursor_blink_ev (this, &rxvt_term::cursor_blink_cb),
156 #endif
157 #ifdef TEXT_BLINK
158 text_blink_ev (this, &rxvt_term::text_blink_cb),
159 #endif
160 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
161 cont_scroll_ev (this, &rxvt_term::cont_scroll_cb),
162 #endif
163 #ifdef SELECTION_SCROLLING
164 sel_scroll_ev (this, &rxvt_term::sel_scroll_cb),
165 #endif
166 #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING)
167 slip_wheel_ev (this, &rxvt_term::slip_wheel_cb),
168 #endif
169 #ifdef POINTER_BLANK
170 pointer_ev (this, &rxvt_term::pointer_cb),
171 #endif
172 #ifdef USE_XIM
173 im_ev (this, &rxvt_term::im_cb),
174 #endif
175 termwin_ev (this, &rxvt_term::x_cb),
176 vt_ev (this, &rxvt_term::x_cb),
177 check_ev (this, &rxvt_term::check_cb),
178 flush_ev (this, &rxvt_term::flush_cb),
179 destroy_ev (this, &rxvt_term::destroy_cb),
180 pty_ev (this, &rxvt_term::pty_cb),
181 incr_ev (this, &rxvt_term::incr_cb)
182 {
183 cmdbuf_ptr = cmdbuf_endp = cmdbuf_base;
184
185 termlist.push_back (this);
186
187 #ifdef KEYSYM_RESOURCE
188 keyboard = new keyboard_manager;
189
190 if (!keyboard)
191 rxvt_fatal ("out of memory, aborting.\n");
192 #endif
193 }
194
195 // clean up the most important stuff, do *not* call x or free mem etc.
196 // for use before an emergency exit
197 void rxvt_term::emergency_cleanup ()
198 {
199 if (cmd_pid)
200 kill (-cmd_pid, SIGHUP);
201
202 #ifdef UTMP_SUPPORT
203 privileged_utmp (RESTORE);
204 #endif
205
206 pty.put ();
207 }
208
209 rxvt_term::~rxvt_term ()
210 {
211 PERL_INVOKE ((this, HOOK_DESTROY, DT_END));
212
213 termlist.erase (find (termlist.begin (), termlist.end(), this));
214
215 emergency_cleanup ();
216
217 #if ENABLE_STYLES
218 for (int i = RS_styleCount; --i; )
219 if (fontset[i] != fontset[0])
220 delete fontset[i];
221 #endif
222 delete fontset[0];
223
224 if (display)
225 {
226 dDisp;
227
228 selection_clear ();
229
230 #ifdef USE_XIM
231 im_destroy ();
232 #endif
233 #ifdef MENUBAR
234 if (menubarGC) XFreeGC (disp, menubarGC);
235 #endif
236 #ifdef XTERM_SCROLLBAR
237 if (xscrollbarGC) XFreeGC (disp, xscrollbarGC);
238 if (ShadowGC) XFreeGC (disp, ShadowGC);
239 #endif
240 #ifdef PLAIN_SCROLLBAR
241 if (pscrollbarGC) XFreeGC (disp, pscrollbarGC);
242 #endif
243 #ifdef NEXT_SCROLLBAR
244 if (blackGC) XFreeGC (disp, blackGC);
245 if (whiteGC) XFreeGC (disp, whiteGC);
246 if (grayGC) XFreeGC (disp, grayGC);
247 if (darkGC) XFreeGC (disp, darkGC);
248 if (stippleGC) XFreeGC (disp, stippleGC);
249 if (dimple) XFreePixmap (disp, dimple);
250 if (upArrow) XFreePixmap (disp, upArrow);
251 if (downArrow) XFreePixmap (disp, downArrow);
252 if (upArrowHi) XFreePixmap (disp, upArrowHi);
253 if (downArrowHi) XFreePixmap (disp, downArrowHi);
254 #endif
255 #if defined(MENUBAR) || defined(RXVT_SCROLLBAR)
256 if (topShadowGC) XFreeGC (disp, topShadowGC);
257 if (botShadowGC) XFreeGC (disp, botShadowGC);
258 if (scrollbarGC) XFreeGC (disp, scrollbarGC);
259 #endif
260 if (gc) XFreeGC (disp, gc);
261
262 #if defined(MENUBAR) && (MENUBAR_MAX > 1)
263 delete menuBar.drawable;
264 //if (menuBar.win)
265 // XDestroyWindow (disp, menuBar.win);
266 #endif
267 delete drawable;
268 // destroy all windows
269 if (parent[0])
270 XDestroyWindow (disp, parent[0]);
271 }
272
273 // TODO: free pixcolours, colours should become part of rxvt_display
274
275 delete pix_colors_focused;
276 #if OFF_FOCUS_FADING
277 delete pix_colors_unfocused;
278 #endif
279
280 displays.put (display);
281
282 scr_release ();
283
284 /* clear all resources */
285 for (int i = 0; i < allocated.size (); i++)
286 free (allocated [i]);
287
288 free (selection.text);
289 // TODO: manage env vars in child only(!)
290 free (env_windowid);
291 free (env_display);
292 free (env_term);
293 free (env_colorfgbg);
294 free (locale);
295 free (v_buffer);
296 free (incr_buf);
297
298 delete envv;
299 delete argv;
300
301 #ifdef KEYSYM_RESOURCE
302 delete keyboard;
303 #endif
304 }
305
306 void
307 rxvt_term::child_exit ()
308 {
309 cmd_pid = 0;
310
311 if (!OPTION (Opt_hold))
312 destroy ();
313 }
314
315 void
316 rxvt_term::destroy ()
317 {
318 if (destroy_ev.active)
319 return;
320
321 #if ENABLE_OVERLAY
322 scr_overlay_off ();
323 #endif
324
325 if (display)
326 {
327 #if USE_XIM
328 im_ev.stop (display);
329 #endif
330 #if HAVE_SCROLLBARS
331 scrollbar_ev.stop (display);
332 #endif
333 #if MENUBAR
334 menubar_ev.stop (display);
335 #endif
336 #if TRANSPARENT
337 rootwin_ev.stop (display);
338 #endif
339 incr_ev.stop ();
340 termwin_ev.stop (display);
341 vt_ev.stop (display);
342 }
343
344 check_ev.stop ();
345 pty_ev.stop ();
346 #ifdef CURSOR_BLINK
347 cursor_blink_ev.stop ();
348 #endif
349 #ifdef TEXT_BLINK
350 text_blink_ev.stop ();
351 #endif
352 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
353 cont_scroll_ev.stop ();
354 #endif
355 #ifdef SELECTION_SCROLLING
356 sel_scroll_ev.stop ();
357 #endif
358 #ifdef POINTER_BLANK
359 pointer_ev.stop ();
360 #endif
361
362 destroy_ev.start (0);
363 }
364
365 void
366 rxvt_term::destroy_cb (time_watcher &w)
367 {
368 SET_R (this);
369
370 delete this;
371 }
372
373 /*----------------------------------------------------------------------*/
374 /*
375 * Exit gracefully, clearing the utmp entry and restoring tty attributes
376 * TODO: if debugging, this should free up any known resources if we can
377 */
378 static XErrorHandler old_xerror_handler;
379
380 static void
381 rxvt_emergency_cleanup ()
382 {
383 for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++)
384 (*t)->emergency_cleanup ();
385 }
386
387 #if ENABLE_FRILLS
388 static void
389 print_x_error (Display *dpy, XErrorEvent *event)
390 {
391 char buffer[BUFSIZ];
392 char mesg[BUFSIZ];
393 char number[32];
394 char *mtype = "XlibMessage";
395 XGetErrorText(dpy, event->error_code, buffer, BUFSIZ);
396 XGetErrorDatabaseText(dpy, mtype, "XError", "X Error", mesg, BUFSIZ);
397 rxvt_warn ("An X Error occured, trying to continue after report.\n");
398 rxvt_warn ("%s: %s\n", mesg, buffer);
399 XGetErrorDatabaseText(dpy, mtype, "MajorCode", "Request Major code %d", mesg, BUFSIZ);
400 rxvt_warn (strncat (mesg, "\n", BUFSIZ), event->request_code);
401 sprintf(number, "%d", event->request_code);
402 XGetErrorDatabaseText(dpy, "XRequest", number, "", buffer, BUFSIZ);
403 rxvt_warn ("(which is %s)\n", buffer);
404 if (event->request_code >= 128) {
405 XGetErrorDatabaseText(dpy, mtype, "MinorCode", "Request Minor code %d",
406 mesg, BUFSIZ);
407 rxvt_warn (strncat (mesg, "\n", BUFSIZ), event->minor_code);
408 }
409 if ((event->error_code == BadWindow) ||
410 (event->error_code == BadPixmap) ||
411 (event->error_code == BadCursor) ||
412 (event->error_code == BadFont) ||
413 (event->error_code == BadDrawable) ||
414 (event->error_code == BadColor) ||
415 (event->error_code == BadGC) ||
416 (event->error_code == BadIDChoice) ||
417 (event->error_code == BadValue) ||
418 (event->error_code == BadAtom)) {
419 if (event->error_code == BadValue)
420 XGetErrorDatabaseText(dpy, mtype, "Value", "Value 0x%x",
421 mesg, BUFSIZ);
422 else if (event->error_code == BadAtom)
423 XGetErrorDatabaseText(dpy, mtype, "AtomID", "AtomID 0x%x",
424 mesg, BUFSIZ);
425 else
426 XGetErrorDatabaseText(dpy, mtype, "ResourceID", "ResourceID 0x%x",
427 mesg, BUFSIZ);
428 rxvt_warn (strncat (mesg, "\n", BUFSIZ), event->resourceid);
429 }
430 XGetErrorDatabaseText(dpy, mtype, "ErrorSerial", "Error Serial #%d",
431 mesg, BUFSIZ);
432 rxvt_warn (strncat (mesg, "\n", BUFSIZ), event->serial);
433 }
434 #endif
435
436 int
437 rxvt_xerror_handler (Display *display, XErrorEvent *event)
438 {
439 if (GET_R->allowedxerror == -1)
440 GET_R->allowedxerror = event->error_code;
441 else
442 {
443 // GET_R is most likely not the terminal which caused the error,
444 // so just output the error and continue
445 #if ENABLE_FRILLS
446 print_x_error (display, event);
447 #else
448 old_xerror_handler (display, event);
449 #endif
450 }
451
452 return 0;
453 }
454
455 int
456 rxvt_xioerror_handler (Display *display)
457 {
458 rxvt_warn ("X connection to '%s' broken, unable to recover, exiting.\n",
459 DisplayString (display));
460 rxvt_emergency_cleanup ();
461 _exit (EXIT_FAILURE);
462 }
463
464 /*----------------------------------------------------------------------*/
465 bool
466 rxvt_term::init (int argc, const char *const *argv)
467 {
468 SET_R (this);
469
470 set_locale ("");
471
472 if (!init_vars ())
473 return false;
474
475 init_secondary ();
476
477 const char **cmd_argv = init_resources (argc, argv);
478
479 #ifdef KEYSYM_RESOURCE
480 keyboard->register_done ();
481 #endif
482
483 #if MENUBAR_MAX
484 menubar_read (rs[Rs_menu]);
485 #endif
486 #ifdef HAVE_SCROLLBARS
487 if (OPTION (Opt_scrollBar))
488 scrollBar.setIdle (); /* set existence for size calculations */
489 #endif
490
491 #if ENABLE_PERL
492 rxvt_perl.init ();
493 #endif
494
495 PERL_INVOKE ((this, HOOK_INIT, DT_END));
496
497 create_windows (argc, argv);
498
499 dDisp;
500
501 init_xlocale ();
502
503 scr_reset (); /* initialize screen */
504
505 #if 0
506 XSynchronize (disp, True);
507 #endif
508
509 #ifdef HAVE_SCROLLBARS
510 if (OPTION (Opt_scrollBar))
511 resize_scrollbar (); /* create and map scrollbar */
512 #endif
513 #if (MENUBAR_MAX)
514 if (menubar_visible ())
515 XMapWindow (disp, menuBar.win);
516 #endif
517 #ifdef TRANSPARENT
518 if (OPTION (Opt_transparent))
519 {
520 XSelectInput (disp, display->root, PropertyChangeMask);
521 check_our_parents ();
522 rootwin_ev.start (display, display->root);
523 }
524 #endif
525
526 XMapWindow (disp, vt);
527 XMapWindow (disp, parent[0]);
528
529 set_colorfgbg ();
530
531 init_command (cmd_argv);
532
533 free (cmd_argv);
534
535 pty_ev.start (pty.pty, EVENT_READ);
536
537 check_ev.start ();
538
539 PERL_INVOKE ((this, HOOK_START, DT_END));
540
541 return true;
542 }
543
544 static struct sig_handlers
545 {
546 sig_watcher sw_chld, sw_term, sw_int;
547
548 void sig_chld (sig_watcher &w)
549 {
550 // we are being called for every SIGCHLD, find the corresponding term
551 int pid;
552
553 while ((pid = waitpid (-1, NULL, WNOHANG)) > 0)
554 for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++)
555 if (pid == (*t)->cmd_pid)
556 {
557 (*t)->child_exit ();
558 break;
559 }
560 }
561
562 /*
563 * Catch a fatal signal and tidy up before quitting
564 */
565 void
566 sig_term (sig_watcher &w)
567 {
568 #ifdef DEBUG_CMD
569 rxvt_warn ("caught signal %d, exiting.\n", w.signum);
570 #endif
571 rxvt_emergency_cleanup ();
572 signal (w.signum, SIG_DFL);
573 kill (getpid (), w.signum);
574 }
575
576 sig_handlers ()
577 : sw_chld (this, &sig_handlers::sig_chld),
578 sw_term (this, &sig_handlers::sig_term),
579 sw_int (this, &sig_handlers::sig_term)
580 {
581 }
582 } sig_handlers;
583
584 void
585 rxvt_init ()
586 {
587 /*
588 * Save and then give up any super-user privileges
589 * If we need privileges in any area then we must specifically request it.
590 * We should only need to be root in these cases:
591 * 1. write utmp entries on some systems
592 * 2. chown tty on some systems
593 */
594 rxvt_privileges (SAVE);
595 rxvt_privileges (IGNORE);
596
597 signal (SIGHUP, SIG_IGN);
598 signal (SIGPIPE, SIG_IGN);
599
600 sig_handlers.sw_chld.start (SIGCHLD);
601 sig_handlers.sw_term.start (SIGTERM);
602 sig_handlers.sw_int.start (SIGINT);
603
604 /* need to trap SIGURG for SVR4 (Unixware) rlogin */
605 /* signal (SIGURG, SIG_DFL); */
606
607 old_xerror_handler = XSetErrorHandler ((XErrorHandler) rxvt_xerror_handler);
608 // TODO: handle this with exceptions and tolerate the memory loss
609 XSetIOErrorHandler (rxvt_xioerror_handler);
610 }
611
612 /* ------------------------------------------------------------------------- *
613 * MEMORY ALLOCATION WRAPPERS *
614 * ------------------------------------------------------------------------- */
615 void *
616 rxvt_malloc (size_t size)
617 {
618 void *p = malloc (size);
619
620 if (!p)
621 rxvt_fatal ("memory allocation failure. aborting.\n");
622
623 return p;
624 }
625
626 void *
627 rxvt_calloc (size_t number, size_t size)
628 {
629 void *p = calloc (number, size);
630
631 if (!p)
632 rxvt_fatal ("memory allocation failure. aborting.\n");
633
634 return p;
635 }
636
637 void *
638 rxvt_realloc (void *ptr, size_t size)
639 {
640 void *p = realloc (ptr, size);
641
642 if (!p)
643 rxvt_fatal ("memory allocation failure. aborting.\n");
644
645 return p;
646 }
647
648 /* ------------------------------------------------------------------------- *
649 * PRIVILEGED OPERATIONS *
650 * ------------------------------------------------------------------------- */
651 /* take care of suid/sgid super-user (root) privileges */
652 void
653 rxvt_privileges (rxvt_privaction action)
654 {
655 #if (defined(HAVE_SETEUID) || defined(HAVE_SETREUID)) && !defined(__CYGWIN32__)
656 static uid_t euid;
657 static gid_t egid;
658 #endif
659
660 #if ! defined(__CYGWIN32__)
661 # if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID)
662 /* setreuid () is the poor man's setuid (), seteuid () */
663 # define seteuid(a) setreuid(-1, (a))
664 # define setegid(a) setregid(-1, (a))
665 # define HAVE_SETEUID
666 # endif
667 # ifdef HAVE_SETEUID
668 switch (action)
669 {
670 case IGNORE:
671 /*
672 * change effective uid/gid - not real uid/gid - so we can switch
673 * back to root later, as required
674 */
675 seteuid (getuid ());
676 setegid (getgid ());
677 break;
678 case SAVE:
679 euid = geteuid ();
680 egid = getegid ();
681 break;
682 case RESTORE:
683 seteuid (euid);
684 setegid (egid);
685 break;
686 }
687 # else
688 switch (action)
689 {
690 case IGNORE:
691 setuid (getuid ());
692 setgid (getgid ());
693 /* FALLTHROUGH */
694 case SAVE:
695 /* FALLTHROUGH */
696 case RESTORE:
697 break;
698 }
699 # endif
700 #endif
701 }
702
703 #ifdef UTMP_SUPPORT
704 void
705 rxvt_term::privileged_utmp (rxvt_privaction action)
706 {
707 if (OPTION (Opt_utmpInhibit)
708 || !pty.name || !*pty.name)
709 return;
710
711 rxvt_privileges (RESTORE);
712
713 if (action == SAVE)
714 makeutent (pty.name, rs[Rs_display_name]);
715 else
716 cleanutent ();
717
718 rxvt_privileges (IGNORE);
719 }
720 #endif
721
722 /*----------------------------------------------------------------------*/
723 /*
724 * window size/position calculcations for XSizeHint and other storage.
725 * if width/height are non-zero then override calculated width/height
726 */
727 void
728 rxvt_term::window_calc (unsigned int newwidth, unsigned int newheight)
729 {
730 short recalc_x, recalc_y;
731 int x, y, sb_w, mb_h, flags;
732 unsigned int w, h;
733 unsigned int max_width, max_height;
734 dDisp;
735
736 D_SIZE ((stderr, "< Cols/Rows: %3d x %3d ; Width/Height: %4d x %4d",
737 ncol, nrow, szHint.width, szHint.height));
738
739 szHint.flags = PMinSize | PResizeInc | PBaseSize | PWinGravity;
740 szHint.win_gravity = NorthWestGravity;
741 /* szHint.min_aspect.x = szHint.min_aspect.y = 1; */
742
743 recalc_x = recalc_y = 0;
744 flags = 0;
745
746 if (!parsed_geometry)
747 {
748 parsed_geometry = 1;
749
750 if (rs[Rs_geometry])
751 flags = XParseGeometry (rs[Rs_geometry], &x, &y, &w, &h);
752
753 if (flags & WidthValue)
754 {
755 ncol = clamp (w, 0, std::numeric_limits<int16_t>::max ());
756 szHint.flags |= USSize;
757 }
758
759 if (flags & HeightValue)
760 {
761 nrow = clamp (h, 0, std::numeric_limits<int16_t>::max ());
762 szHint.flags |= USSize;
763 }
764
765 if (flags & XValue)
766 {
767 szHint.x = x;
768 szHint.flags |= USPosition;
769
770 if (flags & XNegative)
771 {
772 recalc_x = 1;
773 szHint.win_gravity = NorthEastGravity;
774 }
775 }
776
777 if (flags & YValue)
778 {
779 szHint.y = y;
780 szHint.flags |= USPosition;
781
782 if (flags & YNegative)
783 {
784 recalc_y = 1;
785
786 if (szHint.win_gravity == NorthEastGravity)
787 szHint.win_gravity = SouthEastGravity;
788 else
789 szHint.win_gravity = SouthWestGravity;
790 }
791 }
792 }
793
794 /* TODO: BOUNDS */
795 width = ncol * fwidth;
796 height = nrow * fheight;
797 max_width = MAX_COLS * fwidth;
798 max_height = MAX_ROWS * fheight;
799
800 szHint.base_width = szHint.base_height = 2 * int_bwidth;
801
802 sb_w = mb_h = 0;
803 window_vt_x = window_vt_y = int_bwidth;
804
805 if (scrollbar_visible ())
806 {
807 sb_w = scrollbar_TotalWidth ();
808 szHint.base_width += sb_w;
809 if (!OPTION (Opt_scrollBar_right))
810 window_vt_x += sb_w;
811 }
812
813 if (menubar_visible ())
814 {
815 mb_h = menuBar_TotalHeight ();
816 szHint.base_height += mb_h;
817 window_vt_y += mb_h;
818 }
819
820 szHint.width_inc = fwidth;
821 szHint.height_inc = fheight;
822 szHint.min_width = szHint.base_width + szHint.width_inc;
823 szHint.min_height = szHint.base_height + szHint.height_inc;
824
825 if (newwidth && newwidth - szHint.base_width < max_width)
826 {
827 szHint.width = newwidth;
828 width = newwidth - szHint.base_width;
829 }
830 else
831 {
832 min_it (width, max_width);
833 szHint.width = szHint.base_width + width;
834 }
835
836 if (newheight && newheight - szHint.base_height < max_height)
837 {
838 szHint.height = newheight;
839 height = newheight - szHint.base_height;
840 }
841 else
842 {
843 min_it (height, max_height);
844 szHint.height = szHint.base_height + height;
845 }
846
847 if (scrollbar_visible () && OPTION (Opt_scrollBar_right))
848 window_sb_x = szHint.width - sb_w;
849
850 if (recalc_x)
851 szHint.x += DisplayWidth (disp, display->screen) - szHint.width - 2 * ext_bwidth;
852 if (recalc_y)
853 szHint.y += DisplayHeight (disp, display->screen) - szHint.height - 2 * ext_bwidth;
854
855 ncol = width / fwidth;
856 nrow = height / fheight;
857 D_SIZE ((stderr, "> Cols/Rows: %3d x %3d ; Width/Height: %4d x %4d",
858 ncol, nrow, szHint.width,
859 szHint.height));
860 return;
861 }
862
863 /*----------------------------------------------------------------------*/
864 /*
865 * Tell the teletype handler what size the window is.
866 * Called after a window size change.
867 */
868 void
869 rxvt_term::tt_winch ()
870 {
871 if (pty.pty < 0)
872 return;
873
874 struct winsize ws;
875
876 ws.ws_col = ncol;
877 ws.ws_row = nrow;
878 ws.ws_xpixel = width;
879 ws.ws_ypixel = height;
880 (void)ioctl (pty.pty, TIOCSWINSZ, &ws);
881
882 #if 0
883 // TIOCSWINSZ⎈ is supposed to do this automatically and correctly
884 if (cmd_pid) /* force through to the command */
885 kill (-cmd_pid, SIGWINCH);
886 #endif
887 }
888
889 /*----------------------------------------------------------------------*/
890 /* set_fonts () - load and set the various fonts
891 *
892 * init = 1 - initialize
893 *
894 * fontname == FONT_UP - switch to bigger font
895 * fontname == FONT_DN - switch to smaller font
896 */
897 bool
898 rxvt_term::set_fonts ()
899 {
900 rxvt_fontset *fs = new rxvt_fontset (this);
901 rxvt_fontprop prop;
902
903 if (!fs
904 || !fs->populate (rs[Rs_font] ? rs[Rs_font] : "fixed")
905 || !fs->realize_font (1))
906 {
907 delete fs;
908 return false;
909 }
910
911 #if ENABLE_STYLES
912 for (int i = RS_styleCount; --i; )
913 if (fontset[i] != fontset[0])
914 delete fontset[i];
915 #endif
916
917 delete fontset[0];
918 fontset[0] = fs;
919
920 prop = (*fs)[1]->properties ();
921 prop.height += lineSpace;
922 fs->set_prop (prop);
923
924 fwidth = prop.width;
925 fheight = prop.height;
926 fbase = (*fs)[1]->ascent;
927
928 for (int style = 1; style < 4; style++)
929 {
930 #if ENABLE_STYLES
931 const char *res = rs[Rs_font + style];
932
933 if (res && !*res)
934 fontset[style] = fontset[0];
935 else
936 {
937 fontset[style] = fs = new rxvt_fontset (this);
938 rxvt_fontprop prop2 = prop;
939
940 if (res)
941 prop2.weight = prop2.slant = rxvt_fontprop::unset;
942 else
943 {
944 res = fontset[0]->fontdesc;
945
946 if (SET_STYLE (0, style) & RS_Bold) prop2.weight = rxvt_fontprop::bold;
947 if (SET_STYLE (0, style) & RS_Italic) prop2.slant = rxvt_fontprop::italic;
948 }
949
950 fs->populate (res);
951 fs->set_prop (prop2);
952 }
953 #else
954 fontset[style] = fontset[0];
955 #endif
956 }
957
958 if (parent[0])
959 {
960 resize_all_windows (0, 0, 0);
961 scr_remap_chars ();
962 scr_touch (true);
963 }
964
965 return true;
966 }
967
968 void rxvt_term::set_string_property (Atom prop, const char *str, int len)
969 {
970 XChangeProperty (display->display, parent[0],
971 prop, XA_STRING, 8, PropModeReplace,
972 (const unsigned char *)str, len >= 0 ? len : strlen (str));
973 }
974
975 void rxvt_term::set_utf8_property (Atom prop, const char *str, int len)
976 {
977 wchar_t *ws = rxvt_mbstowcs (str, len);
978 char *s = rxvt_wcstoutf8 (ws);
979
980 XChangeProperty (display->display, parent[0],
981 prop, xa[XA_UTF8_STRING], 8, PropModeReplace,
982 (const unsigned char *)s, strlen (s));
983
984 free (s);
985 free (ws);
986 }
987
988 /*----------------------------------------------------------------------*/
989 /*----------------------------------------------------------------------*/
990 /* xterm sequences - title, iconName, color (exptl) */
991 void
992 rxvt_term::set_title (const char *str)
993 {
994 set_string_property (XA_WM_NAME, str);
995 #if ENABLE_EWMH
996 set_utf8_property (xa[XA_NET_WM_NAME], str);
997 #endif
998 }
999
1000 void
1001 rxvt_term::set_icon_name (const char *str)
1002 {
1003 set_string_property (XA_WM_ICON_NAME, str);
1004 #if ENABLE_EWMH
1005 set_utf8_property (xa[XA_NET_WM_ICON_NAME], str);
1006 #endif
1007 }
1008
1009 #ifdef XTERM_COLOR_CHANGE
1010 void
1011 rxvt_term::set_window_color (int idx, const char *color)
1012 {
1013 rxvt_color xcol;
1014 int i;
1015
1016 if (color == NULL || *color == '\0')
1017 return;
1018
1019 /* handle color aliases */
1020 if (isdigit (*color))
1021 {
1022 i = atoi (color);
1023
1024 if (i >= 8 && i <= 15)
1025 { /* bright colors */
1026 i -= 8;
1027 # ifndef NO_BRIGHTCOLOR
1028 pix_colors_focused[idx] = pix_colors_focused[minBrightCOLOR + i];
1029 SET_PIXCOLOR (idx);
1030 goto done;
1031 # endif
1032 }
1033
1034 if (i >= 0 && i <= 7)
1035 { /* normal colors */
1036 pix_colors_focused[idx] = pix_colors_focused[minCOLOR + i];
1037 SET_PIXCOLOR (idx);
1038 goto done;
1039 }
1040 }
1041
1042 if (!rXParseAllocColor (&xcol, color))
1043 return;
1044
1045 /* XStoreColor (display->display, display->cmap, XColor*); */
1046
1047 /*
1048 * FIXME: should free colors here, but no idea how to do it so instead,
1049 * so just keep gobbling up the colormap
1050 */
1051 # if 0
1052 for (i = Color_Black; i <= Color_White; i++)
1053 if (pix_colors[idx] == pix_colors[i])
1054 break;
1055 if (i > Color_White)
1056 {
1057 /* fprintf (stderr, "XFreeColors: pix_colors [%d] = %lu\n", idx, pix_colors [idx]); */
1058 XFreeColors (display->display, display->cmap, (pix_colors + idx), 1,
1059 DisplayPlanes (display->display, display->screen));
1060 }
1061 # endif
1062
1063 pix_colors_focused[idx] = xcol;
1064 SET_PIXCOLOR (idx);
1065
1066 /* XSetWindowAttributes attr; */
1067 /* Cursor cursor; */
1068 done:
1069
1070 #if OFF_FOCUS_FADING
1071 if (rs[Rs_fade])
1072 pix_colors_unfocused[idx] = pix_colors_focused[idx].fade (display, atoi (rs[Rs_fade]), pix_colors[Color_fade]);
1073 #endif
1074
1075 /*TODO: handle Color_BD, scrollbar background, etc. */
1076
1077 recolour_cursor ();
1078 scr_recolour ();
1079 }
1080
1081 #else
1082 # define set_window_color (idx,color) ((void)0)
1083 #endif /* XTERM_COLOR_CHANGE */
1084
1085 void
1086 rxvt_term::recolour_cursor ()
1087 {
1088 XColor xcol[2];
1089
1090 xcol[0].pixel = ISSET_PIXCOLOR (Color_pointer_fg)
1091 ? pix_colors_focused[Color_pointer_fg]
1092 : pix_colors_focused[Color_fg];
1093 xcol[1].pixel = ISSET_PIXCOLOR (Color_pointer_bg)
1094 ? pix_colors_focused[Color_pointer_bg]
1095 : pix_colors_focused[Color_bg];
1096
1097 XQueryColors (display->display, display->cmap, xcol, 2);
1098 XRecolorCursor (display->display, TermWin_cursor, xcol + 0, xcol + 1);
1099 }
1100
1101 /*----------------------------------------------------------------------*/
1102 /*
1103 * find if fg/bg matches any of the normal (low-intensity) colors
1104 */
1105 void
1106 rxvt_term::set_colorfgbg ()
1107 {
1108 unsigned int i;
1109 const char *xpmb = "\0";
1110 char fstr[sizeof ("default") + 1], bstr[sizeof ("default") + 1];
1111
1112 env_colorfgbg = (char *)rxvt_malloc (sizeof ("COLORFGBG=default;default;bg") + 1);
1113 strcpy (fstr, "default");
1114 strcpy (bstr, "default");
1115 for (i = Color_Black; i <= Color_White; i++)
1116 if (pix_colors[Color_fg] == pix_colors[i])
1117 {
1118 sprintf (fstr, "%d", (i - Color_Black));
1119 break;
1120 }
1121
1122 for (i = Color_Black; i <= Color_White; i++)
1123 if (pix_colors[Color_bg] == pix_colors[i])
1124 {
1125 sprintf (bstr, "%d", (i - Color_Black));
1126 #ifdef XPM_BACKGROUND
1127 xpmb = "default;";
1128 #endif
1129 break;
1130 }
1131
1132 sprintf (env_colorfgbg, "COLORFGBG=%s;%s%s", fstr, xpmb, bstr);
1133 }
1134
1135 /*----------------------------------------------------------------------*/
1136
1137 int
1138 rxvt_term::rXParseAllocColor (rxvt_color *screen_in_out, const char *colour)
1139 {
1140 if (!screen_in_out->set (display, colour))
1141 {
1142 rxvt_warn ("can't get colour '%s', continuing without.\n", colour);
1143 return false;
1144 }
1145
1146 return true;
1147 }
1148
1149 /* -------------------------------------------------------------------- *
1150 * - WINDOW RESIZING - *
1151 * -------------------------------------------------------------------- */
1152 void
1153 rxvt_term::resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent)
1154 {
1155 int fix_screen;
1156 int old_width = szHint.width, old_height = szHint.height;
1157 dDisp;
1158
1159 window_calc (newwidth, newheight);
1160 XSetWMNormalHints (disp, parent[0], &szHint);
1161
1162 if (!ignoreparent)
1163 {
1164 #ifdef SMART_RESIZE
1165 /*
1166 * resize by Marius Gedminas <marius.gedminas@uosis.mif.vu.lt>
1167 * reposition window on resize depending on placement on screen
1168 */
1169 int x, y, x1, y1;
1170 int dx, dy;
1171 unsigned int unused_w1, unused_h1, unused_b1, unused_d1;
1172 Window unused_cr;
1173
1174 XTranslateCoordinates (disp, parent[0], display->root,
1175 0, 0, &x, &y, &unused_cr);
1176 XGetGeometry (disp, parent[0], &unused_cr, &x1, &y1,
1177 &unused_w1, &unused_h1, &unused_b1, &unused_d1);
1178 /*
1179 * if display->root isn't the parent window, a WM will probably have offset
1180 * our position for handles and decorations. Counter it
1181 */
1182 if (x1 != x || y1 != y)
1183 {
1184 x -= x1;
1185 y -= y1;
1186 }
1187
1188 x1 = (DisplayWidth (disp, display->screen) - old_width) / 2;
1189 y1 = (DisplayHeight (disp, display->screen) - old_height) / 2;
1190 dx = old_width - szHint.width;
1191 dy = old_height - szHint.height;
1192
1193 /* Check position of the center of the window */
1194 if (x < x1) /* left half */
1195 dx = 0;
1196 else if (x == x1) /* exact center */
1197 dx /= 2;
1198 if (y < y1) /* top half */
1199 dy = 0;
1200 else if (y == y1) /* exact center */
1201 dy /= 2;
1202
1203 XMoveResizeWindow (disp, parent[0], x + dx, y + dy,
1204 szHint.width, szHint.height);
1205 #else
1206 XResizeWindow (disp, parent[0], szHint.width, szHint.height);
1207 #endif
1208 }
1209
1210 fix_screen = ncol != prev_ncol || nrow != prev_nrow;
1211
1212 if (fix_screen || newwidth != old_width || newheight != old_height)
1213 {
1214 if (scrollbar_visible ())
1215 {
1216 XMoveResizeWindow (disp, scrollBar.win,
1217 window_sb_x, 0,
1218 scrollbar_TotalWidth (), szHint.height);
1219 resize_scrollbar ();
1220 }
1221
1222 if (menubar_visible ())
1223 XMoveResizeWindow (disp, menuBar.win,
1224 window_vt_x, 0,
1225 TermWin_TotalWidth (), menuBar_TotalHeight ());
1226
1227 XMoveResizeWindow (disp, vt,
1228 window_vt_x, window_vt_y,
1229 TermWin_TotalWidth (), TermWin_TotalHeight ());
1230
1231 scr_clear ();
1232 #ifdef XPM_BACKGROUND
1233 resize_pixmap ();
1234 #endif
1235 }
1236
1237 if (fix_screen || old_height == 0)
1238 {
1239 int curr_screen = -1;
1240 int old_ncol = prev_ncol;
1241
1242 /* scr_reset only works on the primary screen */
1243 if (old_height) /* this is not the first time through */
1244 {
1245 unsigned int ocol = ncol;
1246 ncol = prev_ncol; // save b/c scr_blank_screen_mem uses this
1247 curr_screen = scr_change_screen (PRIMARY);
1248 ncol = ocol;
1249 }
1250
1251 scr_reset ();
1252
1253 if (curr_screen >= 0) /* this is not the first time through */
1254 {
1255 scr_change_screen (curr_screen);
1256 selection_check (old_ncol != ncol ? 4 : 0);
1257 }
1258 }
1259
1260 old_width = szHint.width;
1261 old_height = szHint.height;
1262
1263 #ifdef XPM_BACKGROUND
1264 if (pixmap)
1265 scr_touch (false);
1266 #endif
1267
1268 #ifdef USE_XIM
1269 IMSetStatusPosition ();
1270 #endif
1271 }
1272
1273 /*
1274 * Set the width/height of the vt window in characters. Units are pixels.
1275 * good for toggling 80/132 columns
1276 */
1277 void
1278 rxvt_term::set_widthheight (unsigned int newwidth, unsigned int newheight)
1279 {
1280 XWindowAttributes wattr;
1281
1282 if (newwidth == 0 || newheight == 0)
1283 {
1284 XGetWindowAttributes (display->display, display->root, &wattr);
1285
1286 if (newwidth == 0)
1287 newwidth = wattr.width - szHint.base_width;
1288 if (newheight == 0)
1289 newheight = wattr.height - szHint.base_height;
1290 }
1291
1292 if (newwidth != width || newheight != height)
1293 {
1294 newwidth += szHint.base_width;
1295 newheight += szHint.base_height;
1296 resize_all_windows (newwidth, newheight, 0);
1297 }
1298 }
1299
1300 /* -------------------------------------------------------------------- *
1301 * - X INPUT METHOD ROUTINES - *
1302 * -------------------------------------------------------------------- */
1303 #ifdef USE_XIM
1304
1305 void
1306 rxvt_term::im_set_color (unsigned long &fg, unsigned long &bg)
1307 {
1308 fg = pix_colors[Color_fg];
1309 bg = pix_colors[Color_bg];
1310 }
1311
1312 void
1313 rxvt_term::im_set_size (XRectangle &size)
1314 {
1315 // the int_bwidth terms make no sense to me
1316 size.x = int_bwidth;
1317 size.y = int_bwidth;
1318 size.width = Width2Pixel (ncol) + int_bwidth;
1319 size.height = Height2Pixel (nrow) + int_bwidth;
1320 }
1321
1322 void
1323 rxvt_term::im_set_preedit_area (XRectangle &preedit_rect,
1324 XRectangle &status_rect,
1325 const XRectangle &needed_rect)
1326 {
1327 preedit_rect.x = needed_rect.width;
1328 preedit_rect.y = 0;
1329 preedit_rect.width = Width2Pixel (ncol) - needed_rect.width + 1;
1330 preedit_rect.height = fheight;
1331
1332 status_rect.x = 0;
1333 status_rect.y = 0;
1334 status_rect.width = needed_rect.width ? needed_rect.width : Width2Pixel (ncol) + 1;
1335 status_rect.height = fheight;
1336 }
1337
1338 /* Checking whether input method is running. */
1339 bool
1340 rxvt_term::IMisRunning ()
1341 {
1342 char *p;
1343 Atom atom;
1344 Window win;
1345 char server[IMBUFSIZ];
1346
1347 /* get current locale modifier */
1348 if ((p = XSetLocaleModifiers (NULL)) != NULL)
1349 {
1350 strcpy (server, "@server=");
1351 strncat (server, & (p[4]), IMBUFSIZ - 9); /* skip "@im=" */
1352
1353 if ((p = strchr (server + 1, '@')) != NULL) /* first one only */
1354 *p = '\0';
1355
1356 atom = XInternAtom (display->display, server, False);
1357 win = XGetSelectionOwner (display->display, atom);
1358
1359 if (win != None)
1360 return True;
1361 }
1362
1363 return False;
1364 }
1365
1366 void
1367 rxvt_term::IMSendSpot ()
1368 {
1369 XPoint nspot;
1370 XVaNestedList preedit_attr;
1371
1372 if (!Input_Context
1373 || !focus
1374 || !(input_style & XIMPreeditPosition))
1375 return;
1376
1377 im_set_position (nspot);
1378
1379 if (nspot.x == spot.x && nspot.y == spot.y)
1380 return;
1381
1382 spot = nspot;
1383
1384 preedit_attr = XVaCreateNestedList (0, XNSpotLocation, &spot, NULL);
1385 XSetICValues (Input_Context, XNPreeditAttributes, preedit_attr, NULL);
1386 XFree (preedit_attr);
1387 }
1388
1389 void
1390 rxvt_term::im_destroy ()
1391 {
1392 if (input_method)
1393 {
1394 if (Input_Context && input_method->xim)
1395 XDestroyIC (Input_Context);
1396
1397 display->put_xim (input_method);
1398 input_method = 0;
1399 }
1400
1401 Input_Context = 0;
1402 }
1403
1404 /*
1405 * Try to open a XIM with the current modifiers, then see if we can
1406 * open a suitable preedit type
1407 */
1408 bool
1409 rxvt_term::IM_get_IC (const char *modifiers)
1410 {
1411 int i, j, found;
1412 XIM xim;
1413 XPoint spot;
1414 XRectangle rect, status_rect, needed_rect;
1415 unsigned long fg, bg;
1416 const char *p;
1417 char **s;
1418 XIMStyles *xim_styles;
1419
1420 if (! ((p = XSetLocaleModifiers (modifiers)) && *p))
1421 return false;
1422
1423 D_MAIN ((stderr, "rxvt_IM_get_IC ()"));
1424 input_method = display->get_xim (locale, modifiers);
1425 if (input_method == NULL)
1426 return false;
1427
1428 xim = input_method->xim;
1429 spot.x = spot.y = -1;
1430
1431 xim_styles = NULL;
1432 if (XGetIMValues (xim, XNQueryInputStyle, &xim_styles, NULL)
1433 || !xim_styles || !xim_styles->count_styles)
1434 {
1435 im_destroy ();
1436 return false;
1437 }
1438
1439 const char *pet[] = { rs[Rs_preeditType], "OverTheSpot,OffTheSpot,Root,None" };
1440
1441 for (int pi = 0; pi < 2; pi++)
1442 {
1443 p = pet[pi];
1444
1445 if (!p)
1446 continue;
1447
1448 s = rxvt_splitcommastring (p);
1449
1450 for (i = found = 0; !found && s[i]; i++)
1451 {
1452 if (!strcmp (s[i], "OverTheSpot"))
1453 input_style = (XIMPreeditPosition | XIMStatusNothing);
1454 else if (!strcmp (s[i], "OffTheSpot"))
1455 input_style = (XIMPreeditArea | XIMStatusArea);
1456 else if (!strcmp (s[i], "Root"))
1457 input_style = (XIMPreeditNothing | XIMStatusNothing);
1458 else if (!strcmp (s[i], "None"))
1459 input_style = (XIMPreeditNone | XIMStatusNone);
1460
1461 for (j = 0; j < xim_styles->count_styles; j++)
1462 if (input_style == xim_styles->supported_styles[j])
1463 {
1464 rxvt_freecommastring (s);
1465
1466 found = 1;
1467 goto foundpet;
1468 }
1469
1470 }
1471
1472 rxvt_freecommastring (s);
1473 }
1474
1475 foundpet:
1476
1477 XFree (xim_styles);
1478
1479 if (!found)
1480 {
1481 im_destroy ();
1482 return false;
1483 }
1484
1485 XFontSet fs = 0;
1486 XVaNestedList preedit_attr = 0, status_attr = 0;
1487
1488 if (input_style & (XIMPreeditPosition | XIMPreeditArea))
1489 {
1490 // fake us a font-set, please
1491 char **missing_charset_list;
1492 int missing_charset_count;
1493 char *def_string;
1494 char pat[512];
1495
1496 sprintf (pat,
1497 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1498 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1499 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1500 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1501 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1502 "*",
1503 fheight,
1504 fheight + 1, fheight - 1,
1505 fheight - 2, fheight + 2);
1506
1507 fs = XCreateFontSet (display->display, rs[Rs_imFont] ? rs[Rs_imFont] : pat,
1508 &missing_charset_list, &missing_charset_count, &def_string);
1509
1510 if (missing_charset_list)
1511 XFreeStringList (missing_charset_list);
1512
1513 if (!fs)
1514 {
1515 input_style &= ~(XIMPreeditPosition | XIMPreeditArea);
1516 rxvt_warn ("unable to create fontset for input method, try \"-pt Root\". Continuing.\n");
1517 }
1518 }
1519
1520 if (input_style & XIMPreeditPosition)
1521 {
1522 im_set_size (rect);
1523 im_set_position (spot);
1524 im_set_color (fg, bg);
1525
1526 preedit_attr = XVaCreateNestedList (0,
1527 XNForeground, fg,
1528 XNBackground, bg,
1529 XNArea, &rect,
1530 XNSpotLocation, &spot,
1531 XNFontSet, fs,
1532 NULL);
1533 }
1534 else if (input_style & XIMPreeditArea)
1535 {
1536 im_set_color (fg, bg);
1537
1538 /*
1539 * The necessary width of preedit area is unknown
1540 * until create input context.
1541 */
1542 needed_rect.width = 0;
1543 im_set_preedit_area (rect, status_rect, needed_rect);
1544
1545 preedit_attr = XVaCreateNestedList (0,
1546 XNForeground, fg,
1547 XNBackground, bg,
1548 XNArea, &rect,
1549 XNFontSet, fs,
1550 NULL);
1551 status_attr = XVaCreateNestedList (0,
1552 XNForeground, fg,
1553 XNBackground, bg,
1554 XNArea, &status_rect,
1555 XNFontSet, fs,
1556 NULL);
1557 }
1558
1559 Input_Context = XCreateIC (xim,
1560 XNInputStyle, input_style,
1561 XNClientWindow, vt,
1562 XNFocusWindow, parent[0],
1563 preedit_attr ? XNPreeditAttributes : NULL,
1564 preedit_attr,
1565 status_attr ? XNStatusAttributes : NULL,
1566 status_attr, NULL);
1567
1568 if (preedit_attr) XFree (preedit_attr);
1569 if (status_attr) XFree (status_attr);
1570 if (fs) XFreeFontSet (display->display, fs);
1571
1572 if (Input_Context == NULL)
1573 {
1574 rxvt_warn ("failed to create input context, continuing without XIM.\n");
1575 im_destroy ();
1576 return false;
1577 }
1578
1579 if (input_style & XIMPreeditArea)
1580 IMSetStatusPosition ();
1581
1582 D_MAIN ((stderr, "rxvt_IM_get_IC () - successful connection"));
1583 return true;
1584 }
1585
1586 void
1587 rxvt_term::im_cb ()
1588 {
1589 int i;
1590 const char *p;
1591 char **s;
1592 char buf[IMBUFSIZ];
1593
1594 SET_R (this);
1595
1596 im_destroy ();
1597
1598 D_MAIN ((stderr, "rxvt_IMInstantiateCallback ()"));
1599 if (Input_Context)
1600 return;
1601
1602 #if defined(HAVE_XSETLOCALE) || defined(HAVE_SETLOCALE)
1603 if (rs[Rs_imLocale])
1604 SET_LOCALE (rs[Rs_imLocale]);
1605 #endif
1606
1607 p = rs[Rs_inputMethod];
1608 if (p && *p)
1609 {
1610 bool found = false;
1611
1612 s = rxvt_splitcommastring (p);
1613
1614 for (i = 0; s[i]; i++)
1615 {
1616 if (*s[i])
1617 {
1618 strcpy (buf, "@im=");
1619 strncat (buf, s[i], IMBUFSIZ - 5);
1620 if (IM_get_IC (buf))
1621 {
1622 found = true;
1623 break;
1624 }
1625 }
1626 }
1627
1628 rxvt_freecommastring (s);
1629
1630 if (found)
1631 goto done;
1632 }
1633
1634 /* try with XMODIFIERS env. var. */
1635 if (IM_get_IC (""))
1636 goto done;
1637
1638 /* try with no modifiers base IF the user didn't specify an IM */
1639 if (IM_get_IC ("@im=none"))
1640 goto done;
1641
1642 done:
1643 #if defined(HAVE_XSETLOCALE) || defined(HAVE_SETLOCALE)
1644 if (rs[Rs_imLocale])
1645 SET_LOCALE (locale);
1646 #endif
1647 }
1648
1649 void
1650 rxvt_term::IMSetStatusPosition ()
1651 {
1652 XRectangle preedit_rect, status_rect, *needed_rect;
1653 XVaNestedList preedit_attr, status_attr;
1654
1655 if (!Input_Context
1656 || !focus
1657 || !(input_style & XIMPreeditArea)
1658 || !IMisRunning ())
1659 return;
1660
1661 /* Getting the necessary width of preedit area */
1662 status_attr = XVaCreateNestedList (0, XNAreaNeeded, &needed_rect, NULL);
1663 XGetICValues (Input_Context, XNStatusAttributes, status_attr, NULL);
1664 XFree (status_attr);
1665
1666 im_set_preedit_area (preedit_rect, status_rect, *needed_rect);
1667 XFree (needed_rect);
1668
1669 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1670 status_attr = XVaCreateNestedList (0, XNArea, &status_rect, NULL);
1671
1672 XSetICValues (Input_Context,
1673 XNPreeditAttributes, preedit_attr,
1674 XNStatusAttributes, status_attr, NULL);
1675
1676 XFree (preedit_attr);
1677 XFree (status_attr);
1678 }
1679 #endif /* USE_XIM */
1680
1681 /*----------------------------------------------------------------------*/
1682 rxvt_t rxvt_current_term;
1683
1684 /*----------------------- end-of-file (C source) -----------------------*/