ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/src/main.C
Revision: 1.395
Committed: Sat Dec 13 11:58:23 2014 UTC (9 years, 6 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.394: +2 -1 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 /*----------------------------------------------------------------------*
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) 2003-2014 Marc Lehmann <schmorp@schmorp.de>
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 3 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 "init.h"
36 #include "keyboard.h"
37 #include "rxvtperl.h"
38
39 #include <limits>
40
41 #include <assert.h>
42 #include <signal.h>
43 #include <string.h>
44
45 #include <termios.h>
46
47 #ifdef HAVE_XSETLOCALE
48 # define X_LOCALE
49 # include <X11/Xlocale.h>
50 #else
51 # include <locale.h>
52 #endif
53
54 struct termios rxvt_term::def_tio;
55 vector<rxvt_term *> rxvt_term::termlist;
56
57 // used to tell global functions which terminal instance is "active"
58 rxvt_t rxvt_current_term;
59
60 static char curlocale[128], savelocale[128];
61
62 bool
63 rxvt_set_locale (const char *locale) NOTHROW
64 {
65 int size = strlen (locale) + 1;
66
67 if (size > sizeof (curlocale))
68 rxvt_fatal ("locale string too long, aborting.\n");
69
70 if (!locale || !memcmp (locale, curlocale, size))
71 return false;
72
73 memcpy (curlocale, locale, size);
74 setlocale (LC_CTYPE, curlocale);
75 return true;
76 }
77
78 void
79 rxvt_push_locale (const char *locale) NOTHROW
80 {
81 strcpy (savelocale, curlocale);
82 rxvt_set_locale (locale);
83 }
84
85 void
86 rxvt_pop_locale () NOTHROW
87 {
88 rxvt_set_locale (savelocale);
89 }
90
91 #if ENABLE_COMBINING
92 class rxvt_composite_vec rxvt_composite;
93
94 text_t rxvt_composite_vec::compose (unicode_t c1, unicode_t c2)
95 {
96 compose_char *cc;
97
98 // break compose chains, as stupid readline really likes to duplicate
99 // composing characters for some reason, near the end of a line.
100 cc = (*this)[c1];
101 while (cc)
102 {
103 if (cc->c2 == c2) return c1;
104 cc = (*this)[cc->c1];
105 }
106
107 // check to see whether this combination already exists otherwise
108 for (cc = v.begin (); cc < v.end (); cc++)
109 if (cc->c1 == c1 && cc->c2 == c2)
110 return COMPOSE_LO + (cc - v.begin ());
111
112 // allocate a new combination
113 if (v.size () == COMPOSE_HI - COMPOSE_LO + 1)
114 {
115 static int seen;
116
117 if (!seen++)
118 rxvt_warn ("too many unrepresentable composite characters, try --enable-unicode3\n");
119
120 return REPLACEMENT_CHAR;
121 }
122
123 v.push_back (compose_char (c1, c2));
124
125 return v.size () - 1 + COMPOSE_LO;
126 }
127
128 int rxvt_composite_vec::expand (unicode_t c, wchar_t *r)
129 {
130 compose_char *cc = (*this)[c];
131
132 if (!cc)
133 {
134 if (r) *r = c;
135 return 1;
136 }
137
138 int len = expand (cc->c1, r);
139
140 if (r) r += len;
141
142 if (cc->c2 != NOCHAR)
143 {
144 len++;
145 if (r) *r++ = cc->c2;
146 }
147
148 return len;
149
150 }
151 #endif
152
153 rxvt_term::rxvt_term ()
154 {
155 #if HAVE_BG_PIXMAP
156 update_background_ev.set<rxvt_term, &rxvt_term::update_background_cb> (this);
157 #endif
158 #ifdef CURSOR_BLINK
159 cursor_blink_ev.set <rxvt_term, &rxvt_term::cursor_blink_cb> (this); cursor_blink_ev.set (0., CURSOR_BLINK_INTERVAL);
160 #endif
161 #ifdef TEXT_BLINK
162 text_blink_ev.set <rxvt_term, &rxvt_term::text_blink_cb> (this); text_blink_ev.set (0., TEXT_BLINK_INTERVAL);
163 #endif
164 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
165 cont_scroll_ev.set <rxvt_term, &rxvt_term::cont_scroll_cb> (this);
166 #endif
167 #ifdef SELECTION_SCROLLING
168 sel_scroll_ev.set <rxvt_term, &rxvt_term::sel_scroll_cb> (this);
169 #endif
170 #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING)
171 slip_wheel_ev.set <rxvt_term, &rxvt_term::slip_wheel_cb> (this);
172 #endif
173 #if BG_IMAGE_FROM_ROOT || ENABLE_PERL
174 rootwin_ev.set <rxvt_term, &rxvt_term::rootwin_cb> (this),
175 #endif
176 scrollbar_ev.set <rxvt_term, &rxvt_term::x_cb> (this),
177 #if USE_XIM
178 im_ev.set <rxvt_term, &rxvt_term::im_cb> (this),
179 #endif
180 #ifdef POINTER_BLANK
181 pointer_ev.set <rxvt_term, &rxvt_term::pointer_cb> (this);
182 #endif
183 #ifndef NO_BELL
184 bell_ev.set <rxvt_term, &rxvt_term::bell_cb> (this);
185 #endif
186 child_ev.set <rxvt_term, &rxvt_term::child_cb> (this);
187 flush_ev.set <rxvt_term, &rxvt_term::flush_cb> (this);
188 destroy_ev.set <rxvt_term, &rxvt_term::destroy_cb> (this);
189 pty_ev.set <rxvt_term, &rxvt_term::pty_cb> (this);
190 termwin_ev.set <rxvt_term, &rxvt_term::x_cb> (this);
191 vt_ev.set <rxvt_term, &rxvt_term::x_cb> (this);
192
193 cmdbuf_ptr = cmdbuf_endp = cmdbuf_base;
194
195 termlist.push_back (this);
196
197 #ifdef KEYSYM_RESOURCE
198 keyboard = new keyboard_manager;
199 #endif
200 }
201
202 // clean up the most important stuff, do *not* call x or free mem etc.
203 // for use before an emergency exit
204 void
205 rxvt_term::emergency_cleanup ()
206 {
207 if (cmd_pid)
208 kill (-cmd_pid, SIGHUP);
209
210 pty_ev.stop ();
211 delete pty; pty = 0;
212 }
213
214 rxvt_term::~rxvt_term ()
215 {
216 termlist.erase (find (termlist.begin (), termlist.end(), this));
217
218 emergency_cleanup ();
219
220 #if ENABLE_STYLES
221 for (int i = RS_styleCount; --i; )
222 if (fontset[i] != fontset[0])
223 delete fontset[i];
224 #endif
225 delete fontset[0];
226
227 #ifdef HAVE_BG_PIXMAP
228 bg_destroy ();
229 #endif
230
231 #if HAVE_IMG
232 delete bg_img;
233 #endif
234
235 if (display)
236 {
237 selection_clear ();
238 selection_clear (true);
239
240 #if USE_XIM
241 im_destroy ();
242 #endif
243 scrollBar.destroy ();
244
245 if (gc)
246 XFreeGC (dpy, gc);
247
248 delete drawable;
249
250 // destroy all windows
251 if (parent)
252 XDestroyWindow (dpy, parent);
253
254 for (int i = 0; i < TOTAL_COLORS; i++)
255 if (ISSET_PIXCOLOR (i))
256 {
257 pix_colors_focused [i].free (this);
258 #if OFF_FOCUS_FADING
259 if (rs[Rs_fade])
260 pix_colors_unfocused [i].free (this);
261 #endif
262 }
263
264 clear ();
265
266 display->flush (); /* ideally .put should do this */
267 displays.put (display);
268 }
269
270 scr_release ();
271
272 /* clear all resources */
273 for (int i = 0; i < allocated.size (); i++)
274 free (allocated [i]);
275
276 free (selection.text);
277 free (selection.clip_text);
278 free (locale);
279 free (v_buffer);
280
281 delete selection_req;
282
283 if (env && memcmp (env, envv->begin (), envv->size () * sizeof (char *)))
284 rxvt_warn ("env has been modified, probably as a result of a lib calling setenv.\n");
285
286 delete env;
287
288 delete envv;
289 delete argv;
290
291 #ifdef KEYSYM_RESOURCE
292 delete keyboard;
293 #endif
294 #ifndef NO_RESOURCES
295 XrmDestroyDatabase (option_db);
296 #endif
297
298 SET_R ((rxvt_term *)0);
299 }
300
301 // child has exited, usually destroys
302 void
303 rxvt_term::child_cb (ev::child &w, int status)
304 {
305 HOOK_INVOKE ((this, HOOK_CHILD_EXIT, DT_INT, status, DT_END));
306
307 cmd_pid = 0;
308
309 if (!option (Opt_hold))
310 destroy ();
311 }
312
313 void
314 rxvt_term::destroy ()
315 {
316 if (destroy_ev.is_active ())
317 return;
318
319 HOOK_INVOKE ((this, HOOK_DESTROY, DT_END));
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 scrollbar_ev.stop (display);
331 #if BG_IMAGE_FROM_ROOT || ENABLE_PERL
332 rootwin_ev.stop (display);
333 #endif
334 termwin_ev.stop (display);
335 vt_ev.stop (display);
336 }
337
338 flush_ev.stop ();
339 pty_ev.stop ();
340 #ifdef CURSOR_BLINK
341 cursor_blink_ev.stop ();
342 #endif
343 #ifdef TEXT_BLINK
344 text_blink_ev.stop ();
345 #endif
346 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
347 cont_scroll_ev.stop ();
348 #endif
349 #ifdef SELECTION_SCROLLING
350 sel_scroll_ev.stop ();
351 #endif
352 #ifdef POINTER_BLANK
353 pointer_ev.stop ();
354 #endif
355
356 destroy_ev.start ();
357 }
358
359 void
360 rxvt_term::destroy_cb (ev::idle &w, int revents)
361 {
362 make_current ();
363
364 delete this;
365 }
366
367 void
368 rxvt_term::set_option (uint8_t opt, bool set) NOTHROW
369 {
370 if (!opt)
371 return;
372
373 uint8_t mask = 1 << (opt & 7);
374 uint8_t &val = options [opt >> 3];
375
376 val = val & ~mask | (set ? mask : 0);
377 }
378
379 /*----------------------------------------------------------------------*/
380 /*
381 * Exit gracefully, clearing the utmp entry and restoring tty attributes
382 */
383 static XErrorHandler old_xerror_handler;
384
385 static void
386 rxvt_emergency_cleanup ()
387 {
388 for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++)
389 (*t)->emergency_cleanup ();
390 }
391
392 #if !ENABLE_MINIMAL
393 static void ecb_cold
394 print_x_error (Display *dpy, XErrorEvent *event)
395 {
396 char buffer[BUFSIZ];
397 char mesg[BUFSIZ];
398 char number[32];
399
400 rxvt_warn ("An X Error occurred, trying to continue after report.\n");
401
402 XGetErrorDatabaseText (dpy, "XlibMessage", "ErrorSerial", "Error Serial #%d", mesg, BUFSIZ);
403 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->serial);
404
405 XGetErrorText (dpy, event->error_code, buffer, BUFSIZ);
406 XGetErrorDatabaseText (dpy, "XlibMessage", "XError", "X Error", mesg, BUFSIZ);
407 rxvt_warn ("+ %s: %s\n", mesg, buffer);
408
409 XGetErrorDatabaseText (dpy, "XlibMessage", "MajorCode", "Request Major code %d", mesg, BUFSIZ);
410 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->request_code);
411
412 if (event->request_code >= 128)
413 {
414 #if 0
415 /* XListExtensions and probably query extensions hangs when there are multiple queues errors */
416 int nexts;
417 char **exts = XListExtensions (dpy, &nexts);
418
419 while (nexts)
420 {
421 char *extname = exts [nexts - 1];
422 int major, first_event, first_error;
423
424 if (XQueryExtension (dpy, extname, &major, &first_event, &first_error) && major == event->request_code)
425 {
426 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
427 rxvt_warn ("+ (which is extension %s minor code %d)\n", extname, event->minor_code);
428
429 snprintf (buffer, BUFSIZ, "%s.%d", extname, event->minor_code);
430 XGetErrorDatabaseText (dpy, "XRequest", buffer, "an unregistered minor code", buffer, BUFSIZ);
431 rxvt_warn ("+ (which is %s)\n", buffer);
432
433 break;
434 }
435
436 printf ("nextss %d %s\n", nexts, extname);//D
437 --nexts;
438 ++exts;
439 }
440 #else
441 int nexts = 0;
442 char **exts = 0;
443 #endif
444
445 if (!nexts)
446 {
447 rxvt_warn ("+ (which is an unknown extension)\n", buffer);
448
449 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
450 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->minor_code);
451
452 #if 0
453 sprintf (number, "RENDER.%d", event->minor_code);
454 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
455 rxvt_warn ("+ (which is %s)\n", buffer);
456 #endif
457 }
458
459 XFreeExtensionList (exts);
460 }
461 else
462 {
463 sprintf (number, "%d", event->request_code);
464 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
465 rxvt_warn ("+ (which is %s)\n", buffer);
466 }
467
468 if (event->error_code == BadWindow
469 || event->error_code == BadPixmap
470 || event->error_code == BadCursor
471 || event->error_code == BadFont
472 || event->error_code == BadDrawable
473 || event->error_code == BadColor
474 || event->error_code == BadGC
475 || event->error_code == BadIDChoice
476 || event->error_code == BadValue
477 || event->error_code == BadAtom)
478 {
479 if (event->error_code == BadValue)
480 XGetErrorDatabaseText (dpy, "XlibMessage", "Value", "Value 0x%x", mesg, BUFSIZ);
481 else if (event->error_code == BadAtom)
482 XGetErrorDatabaseText (dpy, "XlibMessage", "AtomID", "AtomID 0x%x", mesg, BUFSIZ);
483 else
484 XGetErrorDatabaseText (dpy, "XlibMessage", "ResourceID", "ResourceID 0x%x", mesg, BUFSIZ);
485
486 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->resourceid);
487 }
488 }
489 #endif
490
491 int ecb_cold
492 rxvt_xerror_handler (Display *display, XErrorEvent *event)
493 {
494 if (GET_R && GET_R->allowedxerror == -1)
495 GET_R->allowedxerror = event->error_code;
496 else
497 {
498 // GET_R is most likely not the terminal which caused the error,
499 // so just output the error and continue
500 #if ENABLE_MINIMAL
501 old_xerror_handler (display, event);
502 #else
503 print_x_error (display, event);
504 #endif
505 }
506
507 return 0;
508 }
509
510 int ecb_cold
511 rxvt_xioerror_handler (Display *display)
512 {
513 rxvt_warn ("X connection to '%s' broken, unable to recover, exiting.\n",
514 DisplayString (display));
515 rxvt_emergency_cleanup ();
516 _exit (EXIT_FAILURE);
517 }
518
519 static struct sig_handlers
520 {
521 ev::sig sw_term, sw_int;
522
523 /*
524 * Catch a fatal signal and tidy up before quitting
525 */
526 void sig_term (ev::sig &w, int revents);
527
528 sig_handlers ()
529 {
530 sw_term.set<sig_handlers, &sig_handlers::sig_term> (this);
531 sw_int .set<sig_handlers, &sig_handlers::sig_term> (this);
532 }
533 } sig_handlers;
534
535 void
536 sig_handlers::sig_term (ev::sig &w, int revents)
537 {
538 rxvt_emergency_cleanup ();
539 w.stop ();
540 kill (getpid (), w.signum);
541 }
542
543 static void
544 rxvt_get_ttymode (struct termios *tio)
545 {
546 if (tcgetattr (STDIN_FILENO, tio) < 0)
547 memset (tio, 0, sizeof (struct termios));
548
549 for (int i = 0; i < NCCS; i++)
550 tio->c_cc[i] = VDISABLE;
551
552 tio->c_cc[VINTR] = CINTR;
553 tio->c_cc[VQUIT] = CQUIT;
554 tio->c_cc[VERASE] = CERASE;
555 #ifdef VERASE2
556 tio->c_cc[VERASE2] = CERASE2;
557 #endif
558 tio->c_cc[VKILL] = CKILL;
559 tio->c_cc[VEOF] = CEOF;
560 tio->c_cc[VSTART] = CSTART;
561 tio->c_cc[VSTOP] = CSTOP;
562 tio->c_cc[VSUSP] = CSUSP;
563 # ifdef VDSUSP
564 tio->c_cc[VDSUSP] = CDSUSP;
565 # endif
566 # ifdef VREPRINT
567 tio->c_cc[VREPRINT] = CRPRNT;
568 # endif
569 # ifdef VDISCRD
570 tio->c_cc[VDISCRD] = CFLUSH;
571 # endif
572 # ifdef VWERSE
573 tio->c_cc[VWERSE] = CWERASE;
574 # endif
575 # ifdef VLNEXT
576 tio->c_cc[VLNEXT] = CLNEXT;
577 # endif
578 # ifdef VSTATUS
579 tio->c_cc[VSTATUS] = CSTATUS;
580 # endif
581
582 # if VMIN != VEOF
583 tio->c_cc[VMIN] = 1;
584 # endif
585 # if VTIME != VEOL
586 tio->c_cc[VTIME] = 0;
587 # endif
588
589 /* input modes */
590 tio->c_iflag = (BRKINT | IGNPAR | ICRNL
591 # ifdef IMAXBEL
592 | IMAXBEL
593 # endif
594 | IXON);
595
596 /* output modes */
597 tio->c_oflag = (OPOST | ONLCR);
598
599 /* control modes */
600 tio->c_cflag = (CS8 | CREAD);
601
602 /* local modes */
603 tio->c_lflag = (ISIG | ICANON | IEXTEN | ECHO
604 # if defined (ECHOCTL) && defined (ECHOKE)
605 | ECHOCTL | ECHOKE
606 # endif
607 | ECHOE | ECHOK);
608 }
609
610 char **rxvt_environ; // startup environment
611
612 void
613 rxvt_init ()
614 {
615 assert (("fontMask must not overlap other RS masks",
616 0 == (RS_fontMask & (RS_Sel | RS_baseattrMask | RS_customMask | RS_bgMask | RS_fgMask))));
617
618 rxvt_get_ttymode (&rxvt_term::def_tio);
619
620 // get rid of stdin/stdout as we don't need them, to free resources
621 dup2 (STDERR_FILENO, STDIN_FILENO);
622 dup2 (STDERR_FILENO, STDOUT_FILENO);
623
624 if (!ev_default_loop ())
625 rxvt_fatal ("cannot initialise libev (bad value for LIBEV_METHODS?)\n");
626
627 rxvt_environ = environ;
628
629 signal (SIGHUP, SIG_IGN);
630 signal (SIGPIPE, SIG_IGN);
631
632 sig_handlers.sw_term.start (SIGTERM); ev_unref ();
633 sig_handlers.sw_int.start (SIGINT); ev_unref ();
634
635 old_xerror_handler = XSetErrorHandler ((XErrorHandler) rxvt_xerror_handler);
636 // TODO: handle this with exceptions and tolerate the memory loss
637 XSetIOErrorHandler (rxvt_xioerror_handler);
638
639 XrmInitialize ();
640
641 #if HAVE_PIXBUF
642 g_type_init ();
643 #endif
644 }
645
646 /*----------------------------------------------------------------------*/
647 /*
648 * window size/position calculations for XSizeHint and other storage.
649 * if width/height are non-zero then override calculated width/height
650 */
651 void
652 rxvt_term::window_calc (unsigned int newwidth, unsigned int newheight)
653 {
654 short recalc_x, recalc_y;
655 int x, y, flags;
656 unsigned int w, h;
657 unsigned int max_width, max_height;
658
659 szHint.flags = PMinSize | PResizeInc | PBaseSize | PWinGravity;
660 szHint.win_gravity = NorthWestGravity;
661 /* szHint.min_aspect.x = szHint.min_aspect.y = 1; */
662
663 recalc_x = recalc_y = 0;
664 flags = 0;
665
666 if (!parsed_geometry)
667 {
668 parsed_geometry = 1;
669
670 if (rs[Rs_geometry])
671 flags = XParseGeometry (rs[Rs_geometry], &x, &y, &w, &h);
672
673 if (flags & WidthValue)
674 {
675 if (!w)
676 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
677
678 ncol = clamp (w, 1, std::numeric_limits<int16_t>::max ());
679 szHint.flags |= USSize;
680 }
681
682 if (flags & HeightValue)
683 {
684 if (!h)
685 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
686
687 nrow = clamp (h, 1, std::numeric_limits<int16_t>::max ());
688 szHint.flags |= USSize;
689 }
690
691 if (flags & XValue)
692 {
693 szHint.x = x;
694 szHint.flags |= USPosition;
695
696 if (flags & XNegative)
697 {
698 recalc_x = 1;
699 szHint.win_gravity = NorthEastGravity;
700 }
701 }
702
703 if (flags & YValue)
704 {
705 szHint.y = y;
706 szHint.flags |= USPosition;
707
708 if (flags & YNegative)
709 {
710 recalc_y = 1;
711
712 if (szHint.win_gravity == NorthEastGravity)
713 szHint.win_gravity = SouthEastGravity;
714 else
715 szHint.win_gravity = SouthWestGravity;
716 }
717 }
718 }
719
720 /* TODO: BOUNDS */
721 width = ncol * fwidth;
722 height = nrow * fheight;
723 max_width = MAX_COLS * fwidth;
724 max_height = MAX_ROWS * fheight;
725
726 szHint.base_width = szHint.base_height = 2 * int_bwidth;
727
728 window_vt_x = window_vt_y = int_bwidth;
729
730 if (scrollBar.state)
731 {
732 int sb_w = scrollBar.total_width ();
733 szHint.base_width += sb_w;
734
735 if (!option (Opt_scrollBar_right))
736 window_vt_x += sb_w;
737 }
738
739 szHint.width_inc = fwidth;
740 szHint.height_inc = fheight;
741 szHint.min_width = szHint.base_width + szHint.width_inc;
742 szHint.min_height = szHint.base_height + szHint.height_inc;
743
744 if (newwidth && newwidth - szHint.base_width < max_width)
745 {
746 szHint.width = newwidth;
747 width = newwidth - szHint.base_width;
748 }
749 else
750 {
751 min_it (width, max_width);
752 szHint.width = szHint.base_width + width;
753 }
754
755 if (newheight && newheight - szHint.base_height < max_height)
756 {
757 szHint.height = newheight;
758 height = newheight - szHint.base_height;
759 }
760 else
761 {
762 min_it (height, max_height);
763 szHint.height = szHint.base_height + height;
764 }
765
766 if (recalc_x)
767 szHint.x += DisplayWidth (dpy, display->screen) - szHint.width - 2 * ext_bwidth;
768
769 if (recalc_y)
770 szHint.y += DisplayHeight (dpy, display->screen) - szHint.height - 2 * ext_bwidth;
771
772 ncol = width / fwidth;
773 nrow = height / fheight;
774
775 // When the size of the vt window is not a multiple of the cell
776 // size, i.e., when the wm does not honour our size hints, there are
777 // extra areas not covered by the terminal screen. Such gaps, when a
778 // bg pixmap is set, would have to be cleared manually to properly
779 // refresh the background. We take the simpler route and shrink the
780 // vt window so as to avoid creating gaps.
781 vt_width = ncol * fwidth;
782 vt_height = nrow * fheight;
783 }
784
785 /*----------------------------------------------------------------------*/
786 /*
787 * Tell the teletype handler what size the window is.
788 * Called after a window size change.
789 */
790 void
791 rxvt_term::tt_winch ()
792 {
793 if (pty->pty < 0)
794 return;
795
796 struct winsize ws;
797
798 ws.ws_col = ncol;
799 ws.ws_row = nrow;
800 ws.ws_xpixel = vt_width;
801 ws.ws_ypixel = vt_height;
802 ioctl (pty->pty, TIOCSWINSZ, &ws);
803
804 #if 0
805 // TIOCSWINSZ is supposed to do this automatically and correctly
806 if (cmd_pid) /* force through to the command */
807 kill (-cmd_pid, SIGWINCH);
808 #endif
809 }
810
811 /*----------------------------------------------------------------------*/
812 /* load and set the various fonts */
813 bool
814 rxvt_term::set_fonts ()
815 {
816 rxvt_fontset *fs = new rxvt_fontset (this);
817 rxvt_fontprop prop;
818
819 if (!fs
820 || !fs->populate (rs[Rs_font] ? rs[Rs_font] : "fixed")
821 || !fs->realize_font (1))
822 {
823 delete fs;
824 return false;
825 }
826
827 #if ENABLE_STYLES
828 for (int i = RS_styleCount; --i; )
829 if (fontset[i] != fontset[0])
830 delete fontset[i];
831 #endif
832
833 delete fontset[0];
834 fontset[0] = fs;
835
836 prop = (*fs)[rxvt_fontset::firstFont]->properties ();
837 prop.width = max (prop.width + letterSpace, 1);
838
839 fs->set_prop (prop, false);
840
841 fwidth = prop.width;
842 fheight = prop.height + lineSpace;
843 fbase = prop.ascent;
844
845 for (int style = 1; style < 4; style++)
846 {
847 #if ENABLE_STYLES
848 const char *res = rs[Rs_font + style];
849
850 if (res && !*res)
851 fontset[style] = fontset[0];
852 else
853 {
854 fontset[style] = fs = new rxvt_fontset (this);
855 rxvt_fontprop prop2 = prop;
856
857 if (res)
858 {
859 fs->populate (res);
860 fs->set_prop (prop2, false);
861 }
862 else
863 {
864 fs->populate (fontset[0]->fontdesc);
865
866 if (SET_STYLE (0, style) & RS_Bold) prop2.weight = rxvt_fontprop::bold;
867 if (SET_STYLE (0, style) & RS_Italic) prop2.slant = rxvt_fontprop::italic;
868
869 fs->set_prop (prop2, true);
870 }
871
872 }
873 #else
874 fontset[style] = fontset[0];
875 #endif
876 }
877
878 if (parent)
879 {
880 resize_all_windows (0, 0, 0);
881 scr_remap_chars ();
882 scr_touch (true);
883 }
884
885 return true;
886 }
887
888 void
889 rxvt_term::set_string_property (Atom prop, const char *str, int len)
890 {
891 XChangeProperty (dpy, parent,
892 prop, XA_STRING, 8, PropModeReplace,
893 (const unsigned char *)str, len >= 0 ? len : strlen (str));
894 }
895
896 void
897 rxvt_term::set_mbstring_property (Atom prop, const char *str, int len)
898 {
899 XTextProperty ct;
900
901 if (XmbTextListToTextProperty (dpy, (char **)&str, 1, XStdICCTextStyle, &ct) >= 0)
902 {
903 XSetTextProperty (dpy, parent, &ct, prop);
904 XFree (ct.value);
905 }
906 }
907
908 void
909 rxvt_term::set_utf8_property (Atom prop, const char *str, int len)
910 {
911 wchar_t *ws = rxvt_mbstowcs (str, len);
912 char *s = rxvt_wcstoutf8 (ws);
913
914 XChangeProperty (dpy, parent,
915 prop, xa[XA_UTF8_STRING], 8, PropModeReplace,
916 (const unsigned char *)s, strlen (s));
917
918 free (s);
919 free (ws);
920 }
921
922 /*----------------------------------------------------------------------*/
923 /*----------------------------------------------------------------------*/
924 /* xterm sequences - title, iconName, color (exptl) */
925 void
926 rxvt_term::set_title (const char *str)
927 {
928 set_mbstring_property (XA_WM_NAME, str);
929 #if ENABLE_EWMH
930 set_utf8_property (xa[XA_NET_WM_NAME], str);
931 #endif
932 }
933
934 void
935 rxvt_term::set_icon_name (const char *str)
936 {
937 set_mbstring_property (XA_WM_ICON_NAME, str);
938 #if ENABLE_EWMH
939 set_utf8_property (xa[XA_NET_WM_ICON_NAME], str);
940 #endif
941 }
942
943 void
944 rxvt_term::set_window_color (int idx, const char *color)
945 {
946 #ifdef XTERM_COLOR_CHANGE
947 rxvt_color xcol;
948
949 if (color == NULL || *color == '\0')
950 return;
951
952 color = strdup (color);
953 allocated.push_back ((void *)color);
954 rs[Rs_color + idx] = color;
955
956 /* handle color aliases */
957 if (isdigit (*color))
958 {
959 int i = atoi (color);
960
961 if (i >= 8 && i <= 15)
962 {
963 /* bright colors */
964 pix_colors_focused[idx] = pix_colors_focused[minBrightCOLOR + i - 8];
965 goto done;
966 }
967
968 if (i >= 0 && i <= 7)
969 {
970 /* normal colors */
971 pix_colors_focused[idx] = pix_colors_focused[minCOLOR + i];
972 goto done;
973 }
974 }
975
976 set_color (xcol, color);
977
978 /*
979 * FIXME: should free colors here, but no idea how to do it so instead,
980 * so just keep gobbling up the colormap
981 */
982
983 pix_colors_focused[idx] = xcol;
984
985 done:
986 /*TODO: handle Color_BD, scrollbar background, etc. */
987
988 update_fade_color (idx);
989 recolour_cursor ();
990 scr_recolour ();
991 #endif /* XTERM_COLOR_CHANGE */
992 }
993
994 void
995 rxvt_term::recolour_cursor ()
996 {
997 XColor fg, bg;
998
999 (ISSET_PIXCOLOR (Color_pointer_fg)
1000 ? pix_colors_focused[Color_pointer_fg]
1001 : pix_colors_focused[Color_fg]).get (fg);
1002
1003 (ISSET_PIXCOLOR (Color_pointer_bg)
1004 ? pix_colors_focused[Color_pointer_bg]
1005 : pix_colors_focused[Color_bg]).get (bg);
1006
1007 XRecolorCursor (dpy, TermWin_cursor, &fg, &bg);
1008 }
1009
1010 /*----------------------------------------------------------------------*/
1011 /*
1012 * find if fg/bg matches any of the normal (low-intensity) colors
1013 */
1014 char *
1015 rxvt_term::get_colorfgbg ()
1016 {
1017 unsigned int i;
1018 const char *xpmb = "";
1019 char fstr[] = "default";
1020 char bstr[] = "default";
1021 char *env_colorfgbg;
1022
1023 for (i = Color_Black; i <= Color_White; i++)
1024 if (pix_colors[Color_fg] == pix_colors[i])
1025 {
1026 sprintf (fstr, "%d", i - Color_Black);
1027 break;
1028 }
1029
1030 for (i = Color_Black; i <= Color_White; i++)
1031 if (pix_colors[Color_bg] == pix_colors[i])
1032 {
1033 sprintf (bstr, "%d", i - Color_Black);
1034 #if BG_IMAGE_FROM_FILE
1035 xpmb = "default;";
1036 #endif
1037 break;
1038 }
1039
1040 env_colorfgbg = (char *)rxvt_malloc (sizeof ("COLORFGBG=default;default;bg"));
1041 sprintf (env_colorfgbg, "COLORFGBG=%s;%s%s", fstr, xpmb, bstr);
1042 return env_colorfgbg;
1043 }
1044
1045 /*----------------------------------------------------------------------*/
1046
1047 bool
1048 rxvt_term::set_color (rxvt_color &color, const char *name)
1049 {
1050 if (color.set (this, name))
1051 return true;
1052
1053 rxvt_warn ("can't get colour '%s', continuing without.\n", name);
1054 return false;
1055 }
1056
1057 void
1058 rxvt_term::alias_color (int dst, int src)
1059 {
1060 pix_colors[dst].set (this, rs[Rs_color + dst] = rs[Rs_color + src]);
1061 }
1062
1063 /* -------------------------------------------------------------------- *
1064 * - WINDOW RESIZING - *
1065 * -------------------------------------------------------------------- */
1066 void
1067 rxvt_term::resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent)
1068 {
1069 int fix_screen;
1070 int old_width = szHint.width;
1071 int old_height = szHint.height;
1072
1073 window_calc (newwidth, newheight);
1074
1075 bool set_hint = !HOOK_INVOKE ((this, HOOK_RESIZE_ALL_WINDOWS, DT_INT, newwidth, DT_INT, newheight, DT_END));
1076
1077 // to avoid races between us and the wm, we clear the incremental size hints around the xresizewindow
1078 if (set_hint)
1079 {
1080 szHint.flags &= ~(PBaseSize | PResizeInc);
1081 XSetWMNormalHints (dpy, parent, &szHint);
1082 szHint.flags |= PBaseSize | PResizeInc;
1083 }
1084
1085 if (!ignoreparent)
1086 {
1087 #ifdef SMART_RESIZE
1088 /*
1089 * resize by Marius Gedminas <marius.gedminas@uosis.mif.vu.lt>
1090 * reposition window on resize depending on placement on screen
1091 */
1092 int x, y, x1, y1;
1093 int dx, dy;
1094 unsigned int unused_w1, unused_h1, unused_b1, unused_d1;
1095 Window unused_cr;
1096
1097 XTranslateCoordinates (dpy, parent, display->root,
1098 0, 0, &x, &y, &unused_cr);
1099 XGetGeometry (dpy, parent, &unused_cr, &x1, &y1,
1100 &unused_w1, &unused_h1, &unused_b1, &unused_d1);
1101 /*
1102 * if display->root isn't the parent window, a WM will probably have offset
1103 * our position for handles and decorations. Counter it
1104 */
1105 if (x1 != x || y1 != y)
1106 {
1107 x -= x1;
1108 y -= y1;
1109 }
1110
1111 x1 = (DisplayWidth (dpy, display->screen) - old_width ) / 2;
1112 y1 = (DisplayHeight (dpy, display->screen) - old_height) / 2;
1113 dx = old_width - szHint.width;
1114 dy = old_height - szHint.height;
1115
1116 /* Check position of the center of the window */
1117 if (x < x1) /* left half */
1118 dx = 0;
1119 else if (x == x1) /* exact center */
1120 dx /= 2;
1121 if (y < y1) /* top half */
1122 dy = 0;
1123 else if (y == y1) /* exact center */
1124 dy /= 2;
1125
1126 XMoveResizeWindow (dpy, parent, x + dx, y + dy,
1127 szHint.width, szHint.height);
1128 #else
1129 XResizeWindow (dpy, parent, szHint.width, szHint.height);
1130 #endif
1131 }
1132
1133 if (set_hint)
1134 XSetWMNormalHints (dpy, parent, &szHint);
1135
1136 fix_screen = ncol != prev_ncol || nrow != prev_nrow;
1137
1138 if (fix_screen || newwidth != old_width || newheight != old_height)
1139 {
1140 if (scrollBar.state)
1141 scrollBar.resize ();
1142
1143 XMoveResizeWindow (dpy, vt,
1144 window_vt_x, window_vt_y,
1145 vt_width, vt_height);
1146
1147 HOOK_INVOKE ((this, HOOK_SIZE_CHANGE, DT_INT, newwidth, DT_INT, newheight, DT_END));
1148
1149 #ifdef HAVE_BG_PIXMAP
1150 if (bg_window_size_sensitive ())
1151 update_background ();
1152 #endif
1153 }
1154
1155 if (fix_screen || old_height == 0)
1156 scr_reset ();
1157
1158 #if USE_XIM
1159 im_set_position ();
1160 #endif
1161 }
1162
1163 /*
1164 * Set the width/height of the vt window in characters. Units are pixels.
1165 * good for toggling 80/132 columns
1166 */
1167 void
1168 rxvt_term::set_widthheight (unsigned int newwidth, unsigned int newheight)
1169 {
1170 XWindowAttributes wattr;
1171
1172 if (newwidth == 0 || newheight == 0)
1173 {
1174 XGetWindowAttributes (dpy, display->root, &wattr);
1175
1176 if (newwidth == 0)
1177 newwidth = wattr.width - szHint.base_width;
1178 if (newheight == 0)
1179 newheight = wattr.height - szHint.base_height;
1180 }
1181
1182 if (newwidth != vt_width || newheight != vt_height)
1183 {
1184 newwidth += szHint.base_width;
1185 newheight += szHint.base_height;
1186 resize_all_windows (newwidth, newheight, 0);
1187 }
1188 }
1189
1190 /* -------------------------------------------------------------------- *
1191 * - X INPUT METHOD ROUTINES - *
1192 * -------------------------------------------------------------------- */
1193 #if USE_XIM
1194
1195 void
1196 rxvt_term::im_set_color (unsigned long &fg, unsigned long &bg)
1197 {
1198 fg = pix_colors [Color_fg];
1199 bg = pix_colors [Color_bg];
1200 }
1201
1202 void
1203 rxvt_term::im_set_size (XRectangle &size)
1204 {
1205 // the int_bwidth terms make no sense to me
1206 size.x = int_bwidth;
1207 size.y = int_bwidth;
1208 size.width = Width2Pixel (ncol) + int_bwidth;
1209 size.height = Height2Pixel (nrow) + int_bwidth;
1210 }
1211
1212 void
1213 rxvt_term::im_set_preedit_area (XRectangle &preedit_rect,
1214 XRectangle &status_rect,
1215 const XRectangle &needed_rect)
1216 {
1217 preedit_rect.x = needed_rect.width;
1218 preedit_rect.y = 0;
1219 preedit_rect.width = Width2Pixel (ncol) - needed_rect.width + 1;
1220 preedit_rect.height = fheight;
1221
1222 status_rect.x = 0;
1223 status_rect.y = 0;
1224 status_rect.width = needed_rect.width ? needed_rect.width : Width2Pixel (ncol) + 1;
1225 status_rect.height = fheight;
1226 }
1227
1228 /* Checking whether input method is running. */
1229 bool
1230 rxvt_term::im_is_running ()
1231 {
1232 Atom atom;
1233 Window win;
1234 char server[IMBUFSIZ];
1235
1236 /* get current locale modifier */
1237 if (char *p = XSetLocaleModifiers (0))
1238 {
1239 strcpy (server, "@server=");
1240 strncat (server, p + 4, IMBUFSIZ - 9); /* skip "@im=" */
1241
1242 if (p = strchr (server + 1, '@')) /* first one only */
1243 *p = '\0';
1244
1245 atom = XInternAtom (dpy, server, False);
1246 win = XGetSelectionOwner (dpy, atom);
1247
1248 if (win != None)
1249 return true;
1250 }
1251
1252 return false;
1253 }
1254
1255 void
1256 rxvt_term::im_send_spot ()
1257 {
1258 XPoint nspot;
1259 XVaNestedList preedit_attr;
1260
1261 if (!Input_Context
1262 || !focus
1263 || !(input_style & (XIMPreeditPosition | XIMPreeditCallbacks)))
1264 return;
1265
1266 im_set_position (nspot);
1267
1268 if (nspot.x == spot.x && nspot.y == spot.y)
1269 return;
1270
1271 spot = nspot;
1272
1273 preedit_attr = XVaCreateNestedList (0, XNSpotLocation, &spot, NULL);
1274 XSetICValues (Input_Context, XNPreeditAttributes, preedit_attr, NULL);
1275 XFree (preedit_attr);
1276 }
1277
1278 void
1279 rxvt_term::im_destroy ()
1280 {
1281 if (input_method)
1282 {
1283 if (Input_Context && input_method->xim)
1284 XDestroyIC (Input_Context);
1285
1286 display->put_xim (input_method);
1287 input_method = 0;
1288 }
1289
1290 Input_Context = 0;
1291 }
1292
1293 #ifdef ENABLE_XIM_ONTHESPOT
1294
1295 static void
1296 xim_preedit_start (XIC ic, XPointer client_data, XPointer call_data)
1297 {
1298 ((rxvt_term *)client_data)->make_current ();
1299 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_START, DT_END));
1300 }
1301
1302 static void
1303 xim_preedit_done (XIC ic, XPointer client_data, XPointer call_data)
1304 {
1305 ((rxvt_term *)client_data)->make_current ();
1306 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_DONE, DT_END));
1307 }
1308
1309 static void
1310 xim_preedit_draw (XIC ic, XPointer client_data, XIMPreeditDrawCallbackStruct *call_data)
1311 {
1312 rxvt_term *term = (rxvt_term *)client_data;
1313 XIMText *text = call_data->text;
1314
1315 term->make_current ();
1316
1317 if (text)
1318 {
1319 wchar_t *str;
1320
1321 if (!text->encoding_is_wchar && text->string.multi_byte)
1322 {
1323 // of course, X makes it ugly again
1324 if (term->rs[Rs_imLocale])
1325 SET_LOCALE (term->rs[Rs_imLocale]);
1326
1327 str = rxvt_temp_buf<wchar_t> (text->length + 1);
1328 mbstowcs (str, text->string.multi_byte, text->length + 1);
1329
1330 if (term->rs[Rs_imLocale])
1331 SET_LOCALE (term->locale);
1332 }
1333 else
1334 str = text->string.wide_char;
1335
1336 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1337 DT_INT, call_data->caret,
1338 DT_INT, call_data->chg_first,
1339 DT_INT, call_data->chg_length,
1340 DT_LCS_LEN, (void *)text->feedback, text->feedback ? (int)text->length : 0,
1341 DT_WCS_LEN, str, str ? (int)text->length : 0,
1342 DT_END));
1343 }
1344 else
1345 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1346 DT_INT, call_data->caret,
1347 DT_INT, call_data->chg_first,
1348 DT_INT, call_data->chg_length,
1349 DT_END));
1350 }
1351
1352 #if 0
1353 static void
1354 xim_preedit_caret (XIC ic, XPointer client_data, XIMPreeditCaretCallbackStruct *call_data)
1355 {
1356 ((rxvt_term *)client_data)->make_current ();
1357 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_CARET,
1358 DT_INT, call_data->position,
1359 DT_INT, call_data->direction,
1360 DT_INT, call_data->style,
1361 DT_END));
1362 }
1363 #endif
1364
1365 #endif
1366
1367 /*
1368 * Try to open a XIM with the current modifiers, then see if we can
1369 * open a suitable preedit type
1370 */
1371 bool
1372 rxvt_term::im_get_ic (const char *modifiers)
1373 {
1374 int i, j, found;
1375 XIM xim;
1376 XPoint spot;
1377 XRectangle rect, status_rect, needed_rect;
1378 unsigned long fg, bg;
1379 const char *p;
1380 char **s;
1381 XIMStyles *xim_styles;
1382
1383 set_environ (env);
1384
1385 if (!((p = XSetLocaleModifiers (modifiers)) && *p))
1386 return false;
1387
1388 input_method = display->get_xim (locale, modifiers);
1389 if (input_method == NULL)
1390 return false;
1391
1392 xim = input_method->xim;
1393 spot.x = spot.y = -1;
1394
1395 xim_styles = NULL;
1396 if (XGetIMValues (xim, XNQueryInputStyle, &xim_styles, NULL)
1397 || !xim_styles || !xim_styles->count_styles)
1398 {
1399 im_destroy ();
1400 return false;
1401 }
1402
1403 const char *pet[] = { rs[Rs_preeditType], "OverTheSpot,OffTheSpot,Root,None" };
1404
1405 for (int pi = 0; pi < 2; pi++)
1406 {
1407 p = pet[pi];
1408
1409 if (!p)
1410 continue;
1411
1412 s = rxvt_strsplit (',', p);
1413
1414 for (i = found = 0; !found && s[i]; i++)
1415 {
1416 if (!strcmp (s[i], "OverTheSpot"))
1417 input_style = XIMPreeditPosition | XIMStatusNothing;
1418 else if (!strcmp (s[i], "OffTheSpot"))
1419 input_style = XIMPreeditArea | XIMStatusArea;
1420 else if (!strcmp (s[i], "Root"))
1421 input_style = XIMPreeditNothing | XIMStatusNothing;
1422 else if (!strcmp (s[i], "None"))
1423 input_style = XIMPreeditNone | XIMStatusNone;
1424 #ifdef ENABLE_XIM_ONTHESPOT
1425 else if (SHOULD_INVOKE (HOOK_XIM_PREEDIT_START) && !strcmp (s[i], "OnTheSpot"))
1426 input_style = XIMPreeditCallbacks | XIMStatusNothing;
1427 #endif
1428 else
1429 input_style = XIMPreeditNothing | XIMStatusNothing;
1430
1431 for (j = 0; j < xim_styles->count_styles; j++)
1432 if (input_style == xim_styles->supported_styles[j])
1433 {
1434 rxvt_free_strsplit (s);
1435
1436 found = 1;
1437 goto foundpet;
1438 }
1439
1440 }
1441
1442 rxvt_free_strsplit (s);
1443 }
1444
1445 foundpet:
1446
1447 XFree (xim_styles);
1448
1449 if (!found)
1450 {
1451 im_destroy ();
1452 return false;
1453 }
1454
1455 XFontSet fs = 0;
1456 XVaNestedList preedit_attr = 0, status_attr = 0;
1457
1458 if (input_style & (XIMPreeditPosition | XIMPreeditArea))
1459 {
1460 // fake us a font-set, please
1461 char **missing_charset_list;
1462 int missing_charset_count;
1463 char *def_string;
1464 char pat[512];
1465
1466 sprintf (pat,
1467 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1468 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1469 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1470 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1471 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1472 "*",
1473 fheight,
1474 fheight + 1, fheight - 1,
1475 fheight - 2, fheight + 2);
1476
1477 fs = XCreateFontSet (dpy, rs[Rs_imFont] ? rs[Rs_imFont] : pat,
1478 &missing_charset_list, &missing_charset_count, &def_string);
1479
1480 if (missing_charset_list)
1481 XFreeStringList (missing_charset_list);
1482
1483 if (!fs)
1484 {
1485 input_style &= ~(XIMPreeditPosition | XIMPreeditArea);
1486 rxvt_warn ("unable to create fontset for input method, try \"-pt Root\". Continuing.\n");
1487 }
1488 }
1489
1490 if (input_style & XIMPreeditPosition)
1491 {
1492 im_set_size (rect);
1493 im_set_position (spot);
1494 im_set_color (fg, bg);
1495
1496 preedit_attr = XVaCreateNestedList (0,
1497 XNForeground, fg,
1498 XNBackground, bg,
1499 XNArea, &rect,
1500 XNSpotLocation, &spot,
1501 XNFontSet, fs,
1502 NULL);
1503 }
1504 else if (input_style & XIMPreeditArea)
1505 {
1506 im_set_color (fg, bg);
1507
1508 /*
1509 * The necessary width of preedit area is unknown
1510 * until create input context.
1511 */
1512 needed_rect.width = 0;
1513 im_set_preedit_area (rect, status_rect, needed_rect);
1514
1515 preedit_attr = XVaCreateNestedList (0,
1516 XNForeground, fg,
1517 XNBackground, bg,
1518 XNArea, &rect,
1519 XNFontSet, fs,
1520 NULL);
1521 status_attr = XVaCreateNestedList (0,
1522 XNForeground, fg,
1523 XNBackground, bg,
1524 XNArea, &status_rect,
1525 XNFontSet, fs,
1526 NULL);
1527 }
1528 #if ENABLE_XIM_ONTHESPOT
1529 else if (input_style & XIMPreeditCallbacks)
1530 {
1531 XIMCallback xcb[4];
1532
1533 im_set_position (spot);
1534
1535 xcb[0].client_data = (XPointer)this; xcb[0].callback = (XIMProc)xim_preedit_start;
1536 xcb[1].client_data = (XPointer)this; xcb[1].callback = (XIMProc)xim_preedit_done;
1537 xcb[2].client_data = (XPointer)this; xcb[2].callback = (XIMProc)xim_preedit_draw;
1538 # if 0
1539 xcb[3].client_data = (XPointer)this; xcb[3].callback = (XIMProc)xim_preedit_caret;
1540 # endif
1541
1542 preedit_attr = XVaCreateNestedList (0,
1543 XNSpotLocation, &spot,
1544 XNPreeditStartCallback, &xcb[0],
1545 XNPreeditDoneCallback , &xcb[1],
1546 XNPreeditDrawCallback , &xcb[2],
1547 # if 0
1548 XNPreeditCaretCallback, &xcb[3],
1549 # endif
1550 NULL);
1551 }
1552 #endif
1553
1554 Input_Context = XCreateIC (xim,
1555 XNInputStyle, input_style,
1556 XNClientWindow, vt,
1557 XNFocusWindow, parent,
1558 preedit_attr ? XNPreeditAttributes : NULL,
1559 preedit_attr,
1560 status_attr ? XNStatusAttributes : NULL,
1561 status_attr, NULL);
1562
1563 if (preedit_attr) XFree (preedit_attr);
1564 if (status_attr) XFree (status_attr);
1565 if (fs) XFreeFontSet (dpy, fs);
1566
1567 if (Input_Context == NULL)
1568 {
1569 rxvt_warn ("failed to create input context, continuing without XIM.\n");
1570 im_destroy ();
1571 return false;
1572 }
1573
1574 #if 0
1575 // unfortunately, only the focus window is used by XIM, hard to fix
1576 if (!XGetICValues (Input_Context, XNFilterEvents, &vt_emask_xim, NULL))
1577 vt_select_input ();
1578 #endif
1579
1580 im_set_position ();
1581
1582 return true;
1583 }
1584
1585 void
1586 rxvt_term::im_cb ()
1587 {
1588 int i;
1589 const char *p;
1590 char **s;
1591 char buf[IMBUFSIZ];
1592
1593 make_current ();
1594
1595 im_destroy ();
1596
1597 if (Input_Context)
1598 return;
1599
1600 if (rs[Rs_imLocale])
1601 SET_LOCALE (rs[Rs_imLocale]);
1602
1603 p = rs[Rs_inputMethod];
1604 if (p && *p)
1605 {
1606 bool found = false;
1607
1608 s = rxvt_strsplit (',', p);
1609
1610 for (i = 0; s[i]; i++)
1611 {
1612 if (*s[i])
1613 {
1614 strcpy (buf, "@im=");
1615 strncat (buf, s[i], IMBUFSIZ - 5);
1616 if (im_get_ic (buf))
1617 {
1618 found = true;
1619 break;
1620 }
1621 }
1622 }
1623
1624 rxvt_free_strsplit (s);
1625
1626 if (found)
1627 goto done;
1628 }
1629
1630 /* try with XMODIFIERS env. var. */
1631 if (im_get_ic (""))
1632 goto done;
1633
1634 /* try with no modifiers base IF the user didn't specify an IM */
1635 if (im_get_ic ("@im=none"))
1636 goto done;
1637
1638 done:
1639 if (rs[Rs_imLocale])
1640 SET_LOCALE (locale);
1641 }
1642
1643 void
1644 rxvt_term::im_set_position ()
1645 {
1646 XRectangle preedit_rect, status_rect, *needed_rect;
1647 XVaNestedList preedit_attr, status_attr;
1648
1649 if (!Input_Context
1650 || !focus
1651 || !(input_style & (XIMPreeditArea | XIMPreeditPosition))
1652 || !im_is_running ())
1653 return;
1654
1655 if (input_style & XIMPreeditPosition)
1656 {
1657 im_set_size (preedit_rect);
1658 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1659
1660 XSetICValues (Input_Context,
1661 XNPreeditAttributes, preedit_attr, NULL);
1662 }
1663 else
1664 {
1665 /* Getting the necessary width of preedit area */
1666 status_attr = XVaCreateNestedList (0, XNAreaNeeded, &needed_rect, NULL);
1667 XGetICValues (Input_Context, XNStatusAttributes, status_attr, NULL);
1668 XFree (status_attr);
1669
1670 im_set_preedit_area (preedit_rect, status_rect, *needed_rect);
1671 XFree (needed_rect);
1672
1673 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1674 status_attr = XVaCreateNestedList (0, XNArea, &status_rect, NULL);
1675
1676 XSetICValues (Input_Context,
1677 XNPreeditAttributes, preedit_attr,
1678 XNStatusAttributes, status_attr,
1679 NULL);
1680
1681 XFree (status_attr);
1682 }
1683
1684 XFree (preedit_attr);
1685 }
1686 #endif /* USE_XIM */
1687
1688 void
1689 rxvt_term::get_window_origin (int &x, int &y)
1690 {
1691 Window cr;
1692 XTranslateCoordinates (dpy, parent, display->root, 0, 0, &x, &y, &cr);
1693 }
1694
1695 #ifdef HAVE_BG_PIXMAP
1696
1697 void
1698 rxvt_term::update_background ()
1699 {
1700 if (update_background_ev.is_active ())
1701 return;
1702
1703 ev_tstamp to_wait = 0.5 - (ev::now () - bg_valid_since);
1704
1705 if (to_wait <= 0.)
1706 bg_render ();
1707 else
1708 update_background_ev.start (to_wait);
1709 }
1710
1711 void
1712 rxvt_term::update_background_cb (ev::timer &w, int revents)
1713 {
1714 make_current ();
1715
1716 update_background_ev.stop ();
1717 bg_render ();
1718 refresh_check ();
1719 }
1720
1721 #endif /* HAVE_BG_PIXMAP */
1722
1723 /*----------------------- end-of-file (C source) -----------------------*/