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Revision: 1.399
Committed: Tue Oct 13 08:10:43 2015 UTC (8 years, 7 months ago) by sf-exg
Content type: text/plain
Branch: MAIN
CVS Tags: rxvt-unicode-rel-9_22
Changes since 1.398: +1 -0 lines
Log Message:
Update copyright years.

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 * Copyright (c) 2015 Emanuele Giaquinta <e.giaquinta@glauco.it>
18 *
19 * This program is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 3 of the License, or
22 * (at your option) any later version.
23 *
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
32 *---------------------------------------------------------------------*/
33
34 #include "../config.h" /* NECESSARY */
35 #include "rxvt.h" /* NECESSARY */
36 #include "init.h"
37 #include "keyboard.h"
38 #include "rxvtperl.h"
39
40 #include <limits>
41
42 #include <assert.h>
43 #include <signal.h>
44 #include <string.h>
45
46 #include <termios.h>
47
48 #ifdef HAVE_XSETLOCALE
49 # define X_LOCALE
50 # include <X11/Xlocale.h>
51 #else
52 # include <locale.h>
53 #endif
54
55 struct termios rxvt_term::def_tio;
56 vector<rxvt_term *> rxvt_term::termlist;
57
58 // used to tell global functions which terminal instance is "active"
59 rxvt_t rxvt_current_term;
60
61 static char curlocale[128], savelocale[128];
62
63 bool
64 rxvt_set_locale (const char *locale) NOTHROW
65 {
66 int size = strlen (locale) + 1;
67
68 if (size > sizeof (curlocale))
69 rxvt_fatal ("locale string too long, aborting.\n");
70
71 if (!locale || !memcmp (locale, curlocale, size))
72 return false;
73
74 memcpy (curlocale, locale, size);
75 setlocale (LC_CTYPE, curlocale);
76 return true;
77 }
78
79 void
80 rxvt_push_locale (const char *locale) NOTHROW
81 {
82 strcpy (savelocale, curlocale);
83 rxvt_set_locale (locale);
84 }
85
86 void
87 rxvt_pop_locale () NOTHROW
88 {
89 rxvt_set_locale (savelocale);
90 }
91
92 #if ENABLE_COMBINING
93 class rxvt_composite_vec rxvt_composite;
94
95 text_t rxvt_composite_vec::compose (unicode_t c1, unicode_t c2)
96 {
97 compose_char *cc;
98
99 // break compose chains, as stupid readline really likes to duplicate
100 // composing characters for some reason, near the end of a line.
101 cc = (*this)[c1];
102 while (cc)
103 {
104 if (cc->c2 == c2) return c1;
105 cc = (*this)[cc->c1];
106 }
107
108 // check to see whether this combination already exists otherwise
109 for (cc = v.begin (); cc < v.end (); cc++)
110 if (cc->c1 == c1 && cc->c2 == c2)
111 return COMPOSE_LO + (cc - v.begin ());
112
113 // allocate a new combination
114 if (v.size () == COMPOSE_HI - COMPOSE_LO + 1)
115 {
116 static int seen;
117
118 if (!seen++)
119 rxvt_warn ("too many unrepresentable composite characters, try --enable-unicode3\n");
120
121 return REPLACEMENT_CHAR;
122 }
123
124 v.push_back (compose_char (c1, c2));
125
126 return v.size () - 1 + COMPOSE_LO;
127 }
128
129 int rxvt_composite_vec::expand (unicode_t c, wchar_t *r)
130 {
131 compose_char *cc = (*this)[c];
132
133 if (!cc)
134 {
135 if (r) *r = c;
136 return 1;
137 }
138
139 int len = expand (cc->c1, r);
140
141 if (r) r += len;
142
143 if (cc->c2 != NOCHAR)
144 {
145 len++;
146 if (r) *r++ = cc->c2;
147 }
148
149 return len;
150
151 }
152 #endif
153
154 rxvt_term::rxvt_term ()
155 {
156 #if HAVE_BG_PIXMAP
157 update_background_ev.set<rxvt_term, &rxvt_term::update_background_cb> (this);
158 #endif
159 #ifdef CURSOR_BLINK
160 cursor_blink_ev.set <rxvt_term, &rxvt_term::cursor_blink_cb> (this); cursor_blink_ev.set (0., CURSOR_BLINK_INTERVAL);
161 #endif
162 #ifdef TEXT_BLINK
163 text_blink_ev.set <rxvt_term, &rxvt_term::text_blink_cb> (this); text_blink_ev.set (0., TEXT_BLINK_INTERVAL);
164 #endif
165 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
166 cont_scroll_ev.set <rxvt_term, &rxvt_term::cont_scroll_cb> (this);
167 #endif
168 #ifdef SELECTION_SCROLLING
169 sel_scroll_ev.set <rxvt_term, &rxvt_term::sel_scroll_cb> (this);
170 #endif
171 #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING)
172 slip_wheel_ev.set <rxvt_term, &rxvt_term::slip_wheel_cb> (this);
173 #endif
174 #if BG_IMAGE_FROM_ROOT || ENABLE_PERL
175 rootwin_ev.set <rxvt_term, &rxvt_term::rootwin_cb> (this),
176 #endif
177 scrollbar_ev.set <rxvt_term, &rxvt_term::x_cb> (this),
178 #if USE_XIM
179 im_ev.set <rxvt_term, &rxvt_term::im_cb> (this),
180 #endif
181 #ifdef POINTER_BLANK
182 pointer_ev.set <rxvt_term, &rxvt_term::pointer_cb> (this);
183 #endif
184 #ifndef NO_BELL
185 bell_ev.set <rxvt_term, &rxvt_term::bell_cb> (this);
186 #endif
187 child_ev.set <rxvt_term, &rxvt_term::child_cb> (this);
188 flush_ev.set <rxvt_term, &rxvt_term::flush_cb> (this);
189 destroy_ev.set <rxvt_term, &rxvt_term::destroy_cb> (this);
190 pty_ev.set <rxvt_term, &rxvt_term::pty_cb> (this);
191 termwin_ev.set <rxvt_term, &rxvt_term::x_cb> (this);
192 vt_ev.set <rxvt_term, &rxvt_term::x_cb> (this);
193
194 cmdbuf_ptr = cmdbuf_endp = cmdbuf_base;
195
196 termlist.push_back (this);
197
198 #ifdef KEYSYM_RESOURCE
199 keyboard = new keyboard_manager;
200 #endif
201 }
202
203 // clean up the most important stuff, do *not* call x or free mem etc.
204 // for use before an emergency exit
205 void
206 rxvt_term::emergency_cleanup ()
207 {
208 if (cmd_pid)
209 kill (-cmd_pid, SIGHUP);
210
211 pty_ev.stop ();
212 delete pty; pty = 0;
213 }
214
215 rxvt_term::~rxvt_term ()
216 {
217 termlist.erase (find (termlist.begin (), termlist.end(), this));
218
219 emergency_cleanup ();
220
221 #if ENABLE_STYLES
222 for (int i = RS_styleCount; --i; )
223 if (fontset[i] != fontset[0])
224 delete fontset[i];
225 #endif
226 delete fontset[0];
227
228 #ifdef HAVE_BG_PIXMAP
229 bg_destroy ();
230 #endif
231
232 #if HAVE_IMG
233 delete bg_img;
234 #endif
235
236 if (display)
237 {
238 selection_clear ();
239 selection_clear (true);
240
241 #if USE_XIM
242 im_destroy ();
243 #endif
244 scrollBar.destroy ();
245
246 if (gc)
247 XFreeGC (dpy, gc);
248
249 delete drawable;
250
251 // destroy all windows
252 if (parent)
253 XDestroyWindow (dpy, parent);
254
255 for (int i = 0; i < TOTAL_COLORS; i++)
256 if (ISSET_PIXCOLOR (i))
257 {
258 pix_colors_focused [i].free (this);
259 #if OFF_FOCUS_FADING
260 if (rs[Rs_fade])
261 pix_colors_unfocused [i].free (this);
262 #endif
263 }
264
265 clear ();
266
267 display->flush (); /* ideally .put should do this */
268 displays.put (display);
269 }
270
271 scr_release ();
272
273 /* clear all resources */
274 for (int i = 0; i < allocated.size (); i++)
275 free (allocated [i]);
276
277 free (selection.text);
278 free (selection.clip_text);
279 free (locale);
280 free (v_buffer);
281
282 delete selection_req;
283
284 if (env && memcmp (env, envv->begin (), envv->size () * sizeof (char *)))
285 rxvt_warn ("env has been modified, probably as a result of a lib calling setenv.\n");
286
287 delete [] env;
288
289 delete envv;
290 delete argv;
291
292 #ifdef KEYSYM_RESOURCE
293 delete keyboard;
294 #endif
295 #ifndef NO_RESOURCES
296 XrmDestroyDatabase (option_db);
297 #endif
298
299 SET_R ((rxvt_term *)0);
300 }
301
302 // child has exited, usually destroys
303 void
304 rxvt_term::child_cb (ev::child &w, int status)
305 {
306 HOOK_INVOKE ((this, HOOK_CHILD_EXIT, DT_INT, status, DT_END));
307
308 cmd_pid = 0;
309
310 if (!option (Opt_hold))
311 destroy ();
312 }
313
314 void
315 rxvt_term::destroy ()
316 {
317 if (destroy_ev.is_active ())
318 return;
319
320 HOOK_INVOKE ((this, HOOK_DESTROY, DT_END));
321
322 #if ENABLE_OVERLAY
323 scr_overlay_off ();
324 #endif
325
326 if (display)
327 {
328 #if USE_XIM
329 im_ev.stop (display);
330 #endif
331 scrollbar_ev.stop (display);
332 #if BG_IMAGE_FROM_ROOT || ENABLE_PERL
333 rootwin_ev.stop (display);
334 #endif
335 termwin_ev.stop (display);
336 vt_ev.stop (display);
337 }
338
339 flush_ev.stop ();
340 pty_ev.stop ();
341 #ifdef CURSOR_BLINK
342 cursor_blink_ev.stop ();
343 #endif
344 #ifdef TEXT_BLINK
345 text_blink_ev.stop ();
346 #endif
347 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
348 cont_scroll_ev.stop ();
349 #endif
350 #ifdef SELECTION_SCROLLING
351 sel_scroll_ev.stop ();
352 #endif
353 #ifdef POINTER_BLANK
354 pointer_ev.stop ();
355 #endif
356
357 destroy_ev.start ();
358 }
359
360 void
361 rxvt_term::destroy_cb (ev::idle &w, int revents)
362 {
363 make_current ();
364
365 delete this;
366 }
367
368 void
369 rxvt_term::set_option (uint8_t opt, bool set) NOTHROW
370 {
371 if (!opt)
372 return;
373
374 uint8_t mask = 1 << (opt & 7);
375 uint8_t &val = options [opt >> 3];
376
377 val = val & ~mask | (set ? mask : 0);
378 }
379
380 /*----------------------------------------------------------------------*/
381 /*
382 * Exit gracefully, clearing the utmp entry and restoring tty attributes
383 */
384 static XErrorHandler old_xerror_handler;
385
386 static void
387 rxvt_emergency_cleanup ()
388 {
389 for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++)
390 (*t)->emergency_cleanup ();
391 }
392
393 #if !ENABLE_MINIMAL
394 static void ecb_cold
395 print_x_error (Display *dpy, XErrorEvent *event)
396 {
397 char buffer[BUFSIZ];
398 char mesg[BUFSIZ];
399 char number[32];
400
401 rxvt_warn ("An X Error occurred, trying to continue after report.\n");
402
403 XGetErrorDatabaseText (dpy, "XlibMessage", "ErrorSerial", "Error Serial #%d", mesg, BUFSIZ);
404 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->serial);
405
406 XGetErrorText (dpy, event->error_code, buffer, BUFSIZ);
407 XGetErrorDatabaseText (dpy, "XlibMessage", "XError", "X Error", mesg, BUFSIZ);
408 rxvt_warn ("+ %s: %s\n", mesg, buffer);
409
410 XGetErrorDatabaseText (dpy, "XlibMessage", "MajorCode", "Request Major code %d", mesg, BUFSIZ);
411 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->request_code);
412
413 if (event->request_code >= 128)
414 {
415 #if 0
416 /* XListExtensions and probably query extensions hangs when there are multiple queues errors */
417 int nexts;
418 char **exts = XListExtensions (dpy, &nexts);
419
420 while (nexts)
421 {
422 char *extname = exts [nexts - 1];
423 int major, first_event, first_error;
424
425 if (XQueryExtension (dpy, extname, &major, &first_event, &first_error) && major == event->request_code)
426 {
427 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
428 rxvt_warn ("+ (which is extension %s minor code %d)\n", extname, event->minor_code);
429
430 snprintf (buffer, BUFSIZ, "%s.%d", extname, event->minor_code);
431 XGetErrorDatabaseText (dpy, "XRequest", buffer, "an unregistered minor code", buffer, BUFSIZ);
432 rxvt_warn ("+ (which is %s)\n", buffer);
433
434 break;
435 }
436
437 printf ("nextss %d %s\n", nexts, extname);//D
438 --nexts;
439 ++exts;
440 }
441 #else
442 int nexts = 0;
443 char **exts = 0;
444 #endif
445
446 if (!nexts)
447 {
448 rxvt_warn ("+ (which is an unknown extension)\n", buffer);
449
450 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
451 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->minor_code);
452
453 #if 0
454 sprintf (number, "RENDER.%d", event->minor_code);
455 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
456 rxvt_warn ("+ (which is %s)\n", buffer);
457 #endif
458 }
459
460 XFreeExtensionList (exts);
461 }
462 else
463 {
464 sprintf (number, "%d", event->request_code);
465 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
466 rxvt_warn ("+ (which is %s)\n", buffer);
467 }
468
469 if (event->error_code == BadWindow
470 || event->error_code == BadPixmap
471 || event->error_code == BadCursor
472 || event->error_code == BadFont
473 || event->error_code == BadDrawable
474 || event->error_code == BadColor
475 || event->error_code == BadGC
476 || event->error_code == BadIDChoice
477 || event->error_code == BadValue
478 || event->error_code == BadAtom)
479 {
480 if (event->error_code == BadValue)
481 XGetErrorDatabaseText (dpy, "XlibMessage", "Value", "Value 0x%x", mesg, BUFSIZ);
482 else if (event->error_code == BadAtom)
483 XGetErrorDatabaseText (dpy, "XlibMessage", "AtomID", "AtomID 0x%x", mesg, BUFSIZ);
484 else
485 XGetErrorDatabaseText (dpy, "XlibMessage", "ResourceID", "ResourceID 0x%x", mesg, BUFSIZ);
486
487 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->resourceid);
488 }
489 }
490 #endif
491
492 int ecb_cold
493 rxvt_xerror_handler (Display *display, XErrorEvent *event)
494 {
495 if (GET_R && GET_R->allowedxerror == -1)
496 GET_R->allowedxerror = event->error_code;
497 else
498 {
499 // GET_R is most likely not the terminal which caused the error,
500 // so just output the error and continue
501 #if ENABLE_MINIMAL
502 old_xerror_handler (display, event);
503 #else
504 print_x_error (display, event);
505 #endif
506 }
507
508 return 0;
509 }
510
511 int ecb_cold
512 rxvt_xioerror_handler (Display *display)
513 {
514 rxvt_warn ("X connection to '%s' broken, unable to recover, exiting.\n",
515 DisplayString (display));
516 rxvt_emergency_cleanup ();
517 _exit (EXIT_FAILURE);
518 }
519
520 static struct sig_handlers
521 {
522 ev::sig sw_term, sw_int;
523
524 /*
525 * Catch a fatal signal and tidy up before quitting
526 */
527 void sig_term (ev::sig &w, int revents);
528
529 sig_handlers ()
530 {
531 sw_term.set<sig_handlers, &sig_handlers::sig_term> (this);
532 sw_int .set<sig_handlers, &sig_handlers::sig_term> (this);
533 }
534 } sig_handlers;
535
536 void
537 sig_handlers::sig_term (ev::sig &w, int revents)
538 {
539 rxvt_emergency_cleanup ();
540 w.stop ();
541 kill (getpid (), w.signum);
542 }
543
544 static void
545 rxvt_get_ttymode (struct termios *tio)
546 {
547 if (tcgetattr (STDIN_FILENO, tio) < 0)
548 memset (tio, 0, sizeof (struct termios));
549
550 for (int i = 0; i < NCCS; i++)
551 tio->c_cc[i] = VDISABLE;
552
553 tio->c_cc[VINTR] = CINTR;
554 tio->c_cc[VQUIT] = CQUIT;
555 tio->c_cc[VERASE] = CERASE;
556 #ifdef VERASE2
557 tio->c_cc[VERASE2] = CERASE2;
558 #endif
559 tio->c_cc[VKILL] = CKILL;
560 tio->c_cc[VEOF] = CEOF;
561 tio->c_cc[VSTART] = CSTART;
562 tio->c_cc[VSTOP] = CSTOP;
563 tio->c_cc[VSUSP] = CSUSP;
564 # ifdef VDSUSP
565 tio->c_cc[VDSUSP] = CDSUSP;
566 # endif
567 # ifdef VREPRINT
568 tio->c_cc[VREPRINT] = CRPRNT;
569 # endif
570 # ifdef VDISCRD
571 tio->c_cc[VDISCRD] = CFLUSH;
572 # endif
573 # ifdef VWERSE
574 tio->c_cc[VWERSE] = CWERASE;
575 # endif
576 # ifdef VLNEXT
577 tio->c_cc[VLNEXT] = CLNEXT;
578 # endif
579 # ifdef VSTATUS
580 tio->c_cc[VSTATUS] = CSTATUS;
581 # endif
582
583 # if VMIN != VEOF
584 tio->c_cc[VMIN] = 1;
585 # endif
586 # if VTIME != VEOL
587 tio->c_cc[VTIME] = 0;
588 # endif
589
590 /* input modes */
591 tio->c_iflag = (BRKINT | IGNPAR | ICRNL
592 # ifdef IMAXBEL
593 | IMAXBEL
594 # endif
595 | IXON);
596
597 /* output modes */
598 tio->c_oflag = (OPOST | ONLCR);
599
600 /* control modes */
601 tio->c_cflag = (CS8 | CREAD);
602
603 /* local modes */
604 tio->c_lflag = (ISIG | ICANON | IEXTEN | ECHO
605 # if defined (ECHOCTL) && defined (ECHOKE)
606 | ECHOCTL | ECHOKE
607 # endif
608 | ECHOE | ECHOK);
609 }
610
611 char **rxvt_environ; // startup environment
612
613 void
614 rxvt_init ()
615 {
616 assert (("fontMask must not overlap other RS masks",
617 0 == (RS_fontMask & (RS_Sel | RS_baseattrMask | RS_customMask | RS_bgMask | RS_fgMask))));
618
619 rxvt_get_ttymode (&rxvt_term::def_tio);
620
621 // get rid of stdin/stdout as we don't need them, to free resources
622 dup2 (STDERR_FILENO, STDIN_FILENO);
623 dup2 (STDERR_FILENO, STDOUT_FILENO);
624
625 if (!ev_default_loop ())
626 rxvt_fatal ("cannot initialise libev (bad value for LIBEV_METHODS?)\n");
627
628 rxvt_environ = environ;
629
630 signal (SIGHUP, SIG_IGN);
631 signal (SIGPIPE, SIG_IGN);
632
633 sig_handlers.sw_term.start (SIGTERM); ev_unref ();
634 sig_handlers.sw_int.start (SIGINT); ev_unref ();
635
636 old_xerror_handler = XSetErrorHandler ((XErrorHandler) rxvt_xerror_handler);
637 // TODO: handle this with exceptions and tolerate the memory loss
638 XSetIOErrorHandler (rxvt_xioerror_handler);
639
640 XrmInitialize ();
641
642 #if HAVE_PIXBUF
643 g_type_init ();
644 #endif
645 }
646
647 /*----------------------------------------------------------------------*/
648 /*
649 * window size/position calculations for XSizeHint and other storage.
650 * if width/height are non-zero then override calculated width/height
651 */
652 void
653 rxvt_term::window_calc (unsigned int newwidth, unsigned int newheight)
654 {
655 short recalc_x, recalc_y;
656 int x, y, flags;
657 unsigned int w, h;
658 unsigned int max_width, max_height;
659
660 szHint.flags = PMinSize | PResizeInc | PBaseSize | PWinGravity;
661 szHint.win_gravity = NorthWestGravity;
662 /* szHint.min_aspect.x = szHint.min_aspect.y = 1; */
663
664 recalc_x = recalc_y = 0;
665 flags = 0;
666
667 if (!parsed_geometry)
668 {
669 parsed_geometry = 1;
670
671 if (rs[Rs_geometry])
672 flags = XParseGeometry (rs[Rs_geometry], &x, &y, &w, &h);
673
674 if (flags & WidthValue)
675 {
676 if (!w)
677 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
678
679 ncol = clamp (w, 1, std::numeric_limits<int16_t>::max ());
680 szHint.flags |= USSize;
681 }
682
683 if (flags & HeightValue)
684 {
685 if (!h)
686 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
687
688 nrow = clamp (h, 1, std::numeric_limits<int16_t>::max ());
689 szHint.flags |= USSize;
690 }
691
692 if (flags & XValue)
693 {
694 szHint.x = x;
695 szHint.flags |= USPosition;
696
697 if (flags & XNegative)
698 {
699 recalc_x = 1;
700 szHint.win_gravity = NorthEastGravity;
701 }
702 }
703
704 if (flags & YValue)
705 {
706 szHint.y = y;
707 szHint.flags |= USPosition;
708
709 if (flags & YNegative)
710 {
711 recalc_y = 1;
712
713 if (szHint.win_gravity == NorthEastGravity)
714 szHint.win_gravity = SouthEastGravity;
715 else
716 szHint.win_gravity = SouthWestGravity;
717 }
718 }
719 }
720
721 /* TODO: BOUNDS */
722 width = ncol * fwidth;
723 height = nrow * fheight;
724 max_width = MAX_COLS * fwidth;
725 max_height = MAX_ROWS * fheight;
726
727 szHint.base_width = szHint.base_height = 2 * int_bwidth;
728
729 window_vt_x = window_vt_y = int_bwidth;
730
731 if (scrollBar.state)
732 {
733 int sb_w = scrollBar.total_width ();
734 szHint.base_width += sb_w;
735
736 if (!option (Opt_scrollBar_right))
737 window_vt_x += sb_w;
738 }
739
740 szHint.width_inc = fwidth;
741 szHint.height_inc = fheight;
742 szHint.min_width = szHint.base_width + szHint.width_inc;
743 szHint.min_height = szHint.base_height + szHint.height_inc;
744
745 if (newwidth && newwidth - szHint.base_width < max_width)
746 {
747 szHint.width = newwidth;
748 width = newwidth - szHint.base_width;
749 }
750 else
751 {
752 min_it (width, max_width);
753 szHint.width = szHint.base_width + width;
754 }
755
756 if (newheight && newheight - szHint.base_height < max_height)
757 {
758 szHint.height = newheight;
759 height = newheight - szHint.base_height;
760 }
761 else
762 {
763 min_it (height, max_height);
764 szHint.height = szHint.base_height + height;
765 }
766
767 if (recalc_x)
768 szHint.x += DisplayWidth (dpy, display->screen) - szHint.width - 2 * ext_bwidth;
769
770 if (recalc_y)
771 szHint.y += DisplayHeight (dpy, display->screen) - szHint.height - 2 * ext_bwidth;
772
773 ncol = width / fwidth;
774 nrow = height / fheight;
775
776 // When the size of the vt window is not a multiple of the cell
777 // size, i.e., when the wm does not honour our size hints, there are
778 // extra areas not covered by the terminal screen. Such gaps, when a
779 // bg pixmap is set, would have to be cleared manually to properly
780 // refresh the background. We take the simpler route and shrink the
781 // vt window so as to avoid creating gaps.
782 vt_width = ncol * fwidth;
783 vt_height = nrow * fheight;
784 }
785
786 /*----------------------------------------------------------------------*/
787 /*
788 * Tell the teletype handler what size the window is.
789 * Called after a window size change.
790 */
791 void
792 rxvt_term::tt_winch ()
793 {
794 if (pty->pty < 0)
795 return;
796
797 struct winsize ws;
798
799 ws.ws_col = ncol;
800 ws.ws_row = nrow;
801 ws.ws_xpixel = vt_width;
802 ws.ws_ypixel = vt_height;
803 ioctl (pty->pty, TIOCSWINSZ, &ws);
804
805 #if 0
806 // TIOCSWINSZ is supposed to do this automatically and correctly
807 if (cmd_pid) /* force through to the command */
808 kill (-cmd_pid, SIGWINCH);
809 #endif
810 }
811
812 /*----------------------------------------------------------------------*/
813 /* load and set the various fonts */
814 bool
815 rxvt_term::set_fonts ()
816 {
817 rxvt_fontset *fs = new rxvt_fontset (this);
818 rxvt_fontprop prop;
819
820 if (!fs
821 || !fs->populate (rs[Rs_font] ? rs[Rs_font] : "fixed")
822 || !fs->realize_font (1))
823 {
824 delete fs;
825 return false;
826 }
827
828 #if ENABLE_STYLES
829 for (int i = RS_styleCount; --i; )
830 if (fontset[i] != fontset[0])
831 delete fontset[i];
832 #endif
833
834 delete fontset[0];
835 fontset[0] = fs;
836
837 prop = (*fs)[rxvt_fontset::firstFont]->properties ();
838 prop.width = max (prop.width + letterSpace, 1);
839
840 fs->set_prop (prop, false);
841
842 fwidth = prop.width;
843 fheight = prop.height + lineSpace;
844 fbase = prop.ascent;
845
846 for (int style = 1; style < 4; style++)
847 {
848 #if ENABLE_STYLES
849 const char *res = rs[Rs_font + style];
850
851 if (res && !*res)
852 fontset[style] = fontset[0];
853 else
854 {
855 fontset[style] = fs = new rxvt_fontset (this);
856 rxvt_fontprop prop2 = prop;
857
858 if (res)
859 {
860 fs->populate (res);
861 fs->set_prop (prop2, false);
862 }
863 else
864 {
865 fs->populate (fontset[0]->fontdesc);
866
867 if (SET_STYLE (0, style) & RS_Bold) prop2.weight = rxvt_fontprop::bold;
868 if (SET_STYLE (0, style) & RS_Italic) prop2.slant = rxvt_fontprop::italic;
869
870 fs->set_prop (prop2, true);
871 }
872
873 }
874 #else
875 fontset[style] = fontset[0];
876 #endif
877 }
878
879 if (parent)
880 {
881 resize_all_windows (0, 0, 0);
882 scr_remap_chars ();
883 scr_touch (true);
884 }
885
886 return true;
887 }
888
889 void
890 rxvt_term::set_string_property (Atom prop, const char *str, int len)
891 {
892 XChangeProperty (dpy, parent,
893 prop, XA_STRING, 8, PropModeReplace,
894 (const unsigned char *)str, len >= 0 ? len : strlen (str));
895 }
896
897 void
898 rxvt_term::set_mbstring_property (Atom prop, const char *str, int len)
899 {
900 XTextProperty ct;
901
902 if (XmbTextListToTextProperty (dpy, (char **)&str, 1, XStdICCTextStyle, &ct) >= 0)
903 {
904 XSetTextProperty (dpy, parent, &ct, prop);
905 XFree (ct.value);
906 }
907 }
908
909 void
910 rxvt_term::set_utf8_property (Atom prop, const char *str, int len)
911 {
912 wchar_t *ws = rxvt_mbstowcs (str, len);
913 char *s = rxvt_wcstoutf8 (ws);
914
915 XChangeProperty (dpy, parent,
916 prop, xa[XA_UTF8_STRING], 8, PropModeReplace,
917 (const unsigned char *)s, strlen (s));
918
919 free (s);
920 free (ws);
921 }
922
923 /*----------------------------------------------------------------------*/
924 /*----------------------------------------------------------------------*/
925 /* xterm sequences - title, iconName, color (exptl) */
926 void
927 rxvt_term::set_title (const char *str)
928 {
929 set_mbstring_property (XA_WM_NAME, str);
930 #if ENABLE_EWMH
931 set_utf8_property (xa[XA_NET_WM_NAME], str);
932 #endif
933 }
934
935 void
936 rxvt_term::set_icon_name (const char *str)
937 {
938 set_mbstring_property (XA_WM_ICON_NAME, str);
939 #if ENABLE_EWMH
940 set_utf8_property (xa[XA_NET_WM_ICON_NAME], str);
941 #endif
942 }
943
944 void
945 rxvt_term::set_window_color (int idx, const char *color)
946 {
947 #ifdef XTERM_COLOR_CHANGE
948 if (color == NULL || *color == '\0')
949 return;
950
951 color = strdup (color);
952 allocated.push_back ((void *)color);
953 rs[Rs_color + idx] = color;
954
955 /* handle color aliases */
956 if (isdigit (*color))
957 {
958 int i = atoi (color);
959
960 if (i >= 8 && i <= 15)
961 {
962 /* bright colors */
963 alias_color (idx, minBrightCOLOR + i - 8);
964 goto done;
965 }
966
967 if (i >= 0 && i <= 7)
968 {
969 /* normal colors */
970 alias_color (idx, minCOLOR + i);
971 goto done;
972 }
973 }
974
975 pix_colors_focused[idx].free (this);
976 set_color (pix_colors_focused[idx], color);
977
978 done:
979 /*TODO: handle Color_BD, scrollbar background, etc. */
980
981 update_fade_color (idx);
982 recolor_cursor ();
983 scr_recolor ();
984 #endif /* XTERM_COLOR_CHANGE */
985 }
986
987 void
988 rxvt_term::recolor_cursor ()
989 {
990 XColor fg, bg;
991
992 (ISSET_PIXCOLOR (Color_pointer_fg)
993 ? pix_colors_focused[Color_pointer_fg]
994 : pix_colors_focused[Color_fg]).get (fg);
995
996 (ISSET_PIXCOLOR (Color_pointer_bg)
997 ? pix_colors_focused[Color_pointer_bg]
998 : pix_colors_focused[Color_bg]).get (bg);
999
1000 XRecolorCursor (dpy, TermWin_cursor, &fg, &bg);
1001 }
1002
1003 /*----------------------------------------------------------------------*/
1004 /*
1005 * find if fg/bg matches any of the normal (low-intensity) colors
1006 */
1007 char *
1008 rxvt_term::get_colorfgbg ()
1009 {
1010 unsigned int i;
1011 const char *xpmb = "";
1012 char fstr[] = "default";
1013 char bstr[] = "default";
1014 char *env_colorfgbg;
1015
1016 for (i = Color_Black; i <= Color_White; i++)
1017 if (pix_colors[Color_fg] == pix_colors[i])
1018 {
1019 sprintf (fstr, "%d", i - Color_Black);
1020 break;
1021 }
1022
1023 for (i = Color_Black; i <= Color_White; i++)
1024 if (pix_colors[Color_bg] == pix_colors[i])
1025 {
1026 sprintf (bstr, "%d", i - Color_Black);
1027 #if BG_IMAGE_FROM_FILE
1028 xpmb = "default;";
1029 #endif
1030 break;
1031 }
1032
1033 env_colorfgbg = (char *)rxvt_malloc (sizeof ("COLORFGBG=default;default;bg"));
1034 sprintf (env_colorfgbg, "COLORFGBG=%s;%s%s", fstr, xpmb, bstr);
1035 return env_colorfgbg;
1036 }
1037
1038 /*----------------------------------------------------------------------*/
1039
1040 bool
1041 rxvt_term::set_color (rxvt_color &color, const char *name)
1042 {
1043 if (color.set (this, name))
1044 return true;
1045
1046 rxvt_warn ("can't get colour '%s', continuing without.\n", name);
1047 return false;
1048 }
1049
1050 void
1051 rxvt_term::alias_color (int dst, int src)
1052 {
1053 pix_colors[dst].free (this);
1054 pix_colors[dst].set (this, rs[Rs_color + dst] = rs[Rs_color + src]);
1055 }
1056
1057 /* -------------------------------------------------------------------- *
1058 * - WINDOW RESIZING - *
1059 * -------------------------------------------------------------------- */
1060 void
1061 rxvt_term::resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent)
1062 {
1063 int fix_screen;
1064 int old_width = szHint.width;
1065 int old_height = szHint.height;
1066
1067 window_calc (newwidth, newheight);
1068
1069 bool set_hint = !HOOK_INVOKE ((this, HOOK_RESIZE_ALL_WINDOWS, DT_INT, newwidth, DT_INT, newheight, DT_END));
1070
1071 // to avoid races between us and the wm, we clear the incremental size hints around the xresizewindow
1072 if (set_hint)
1073 {
1074 szHint.flags &= ~(PBaseSize | PResizeInc);
1075 XSetWMNormalHints (dpy, parent, &szHint);
1076 szHint.flags |= PBaseSize | PResizeInc;
1077 }
1078
1079 if (!ignoreparent)
1080 {
1081 #ifdef SMART_RESIZE
1082 /*
1083 * resize by Marius Gedminas <marius.gedminas@uosis.mif.vu.lt>
1084 * reposition window on resize depending on placement on screen
1085 */
1086 int x, y, x1, y1;
1087 int dx, dy;
1088 unsigned int unused_w1, unused_h1, unused_b1, unused_d1;
1089 Window unused_cr;
1090
1091 XTranslateCoordinates (dpy, parent, display->root,
1092 0, 0, &x, &y, &unused_cr);
1093 XGetGeometry (dpy, parent, &unused_cr, &x1, &y1,
1094 &unused_w1, &unused_h1, &unused_b1, &unused_d1);
1095 /*
1096 * if display->root isn't the parent window, a WM will probably have offset
1097 * our position for handles and decorations. Counter it
1098 */
1099 if (x1 != x || y1 != y)
1100 {
1101 x -= x1;
1102 y -= y1;
1103 }
1104
1105 x1 = (DisplayWidth (dpy, display->screen) - old_width ) / 2;
1106 y1 = (DisplayHeight (dpy, display->screen) - old_height) / 2;
1107 dx = old_width - szHint.width;
1108 dy = old_height - szHint.height;
1109
1110 /* Check position of the center of the window */
1111 if (x < x1) /* left half */
1112 dx = 0;
1113 else if (x == x1) /* exact center */
1114 dx /= 2;
1115 if (y < y1) /* top half */
1116 dy = 0;
1117 else if (y == y1) /* exact center */
1118 dy /= 2;
1119
1120 XMoveResizeWindow (dpy, parent, x + dx, y + dy,
1121 szHint.width, szHint.height);
1122 #else
1123 XResizeWindow (dpy, parent, szHint.width, szHint.height);
1124 #endif
1125 }
1126
1127 if (set_hint)
1128 XSetWMNormalHints (dpy, parent, &szHint);
1129
1130 fix_screen = ncol != prev_ncol || nrow != prev_nrow;
1131
1132 if (fix_screen || newwidth != old_width || newheight != old_height)
1133 {
1134 if (scrollBar.state)
1135 scrollBar.resize ();
1136
1137 XMoveResizeWindow (dpy, vt,
1138 window_vt_x, window_vt_y,
1139 vt_width, vt_height);
1140
1141 HOOK_INVOKE ((this, HOOK_SIZE_CHANGE, DT_INT, newwidth, DT_INT, newheight, DT_END));
1142
1143 #ifdef HAVE_BG_PIXMAP
1144 if (bg_window_size_sensitive ())
1145 update_background ();
1146 #endif
1147 }
1148
1149 if (fix_screen || old_height == 0)
1150 scr_reset ();
1151
1152 #if USE_XIM
1153 im_set_position ();
1154 #endif
1155 }
1156
1157 /*
1158 * Set the width/height of the vt window in characters. Units are pixels.
1159 * good for toggling 80/132 columns
1160 */
1161 void
1162 rxvt_term::set_widthheight (unsigned int newwidth, unsigned int newheight)
1163 {
1164 XWindowAttributes wattr;
1165
1166 if (newwidth == 0 || newheight == 0)
1167 {
1168 XGetWindowAttributes (dpy, display->root, &wattr);
1169
1170 if (newwidth == 0)
1171 newwidth = wattr.width - szHint.base_width;
1172 if (newheight == 0)
1173 newheight = wattr.height - szHint.base_height;
1174 }
1175
1176 if (newwidth != vt_width || newheight != vt_height)
1177 {
1178 newwidth += szHint.base_width;
1179 newheight += szHint.base_height;
1180 resize_all_windows (newwidth, newheight, 0);
1181 }
1182 }
1183
1184 /* -------------------------------------------------------------------- *
1185 * - X INPUT METHOD ROUTINES - *
1186 * -------------------------------------------------------------------- */
1187 #if USE_XIM
1188
1189 void
1190 rxvt_term::im_set_color (unsigned long &fg, unsigned long &bg)
1191 {
1192 fg = pix_colors [Color_fg];
1193 bg = pix_colors [Color_bg];
1194 }
1195
1196 void
1197 rxvt_term::im_set_size (XRectangle &size)
1198 {
1199 // the int_bwidth terms make no sense to me
1200 size.x = int_bwidth;
1201 size.y = int_bwidth;
1202 size.width = Width2Pixel (ncol) + int_bwidth;
1203 size.height = Height2Pixel (nrow) + int_bwidth;
1204 }
1205
1206 void
1207 rxvt_term::im_set_preedit_area (XRectangle &preedit_rect,
1208 XRectangle &status_rect,
1209 const XRectangle &needed_rect)
1210 {
1211 preedit_rect.x = needed_rect.width;
1212 preedit_rect.y = 0;
1213 preedit_rect.width = Width2Pixel (ncol) - needed_rect.width + 1;
1214 preedit_rect.height = fheight;
1215
1216 status_rect.x = 0;
1217 status_rect.y = 0;
1218 status_rect.width = needed_rect.width ? needed_rect.width : Width2Pixel (ncol) + 1;
1219 status_rect.height = fheight;
1220 }
1221
1222 /* Checking whether input method is running. */
1223 bool
1224 rxvt_term::im_is_running ()
1225 {
1226 Atom atom;
1227 Window win;
1228 char server[IMBUFSIZ];
1229
1230 /* get current locale modifier */
1231 if (char *p = XSetLocaleModifiers (0))
1232 {
1233 strcpy (server, "@server=");
1234 strncat (server, p + 4, IMBUFSIZ - 9); /* skip "@im=" */
1235
1236 if (p = strchr (server + 1, '@')) /* first one only */
1237 *p = '\0';
1238
1239 atom = XInternAtom (dpy, server, False);
1240 win = XGetSelectionOwner (dpy, atom);
1241
1242 if (win != None)
1243 return true;
1244 }
1245
1246 return false;
1247 }
1248
1249 void
1250 rxvt_term::im_send_spot ()
1251 {
1252 XPoint nspot;
1253 XVaNestedList preedit_attr;
1254
1255 if (!Input_Context
1256 || !focus
1257 || !(input_style & (XIMPreeditPosition | XIMPreeditCallbacks)))
1258 return;
1259
1260 im_set_position (nspot);
1261
1262 if (nspot.x == spot.x && nspot.y == spot.y)
1263 return;
1264
1265 spot = nspot;
1266
1267 preedit_attr = XVaCreateNestedList (0, XNSpotLocation, &spot, NULL);
1268 XSetICValues (Input_Context, XNPreeditAttributes, preedit_attr, NULL);
1269 XFree (preedit_attr);
1270 }
1271
1272 void
1273 rxvt_term::im_destroy ()
1274 {
1275 if (input_method)
1276 {
1277 if (Input_Context && input_method->xim)
1278 XDestroyIC (Input_Context);
1279
1280 display->put_xim (input_method);
1281 input_method = 0;
1282 }
1283
1284 Input_Context = 0;
1285 }
1286
1287 #ifdef ENABLE_XIM_ONTHESPOT
1288
1289 static void
1290 xim_preedit_start (XIC ic, XPointer client_data, XPointer call_data)
1291 {
1292 ((rxvt_term *)client_data)->make_current ();
1293 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_START, DT_END));
1294 }
1295
1296 static void
1297 xim_preedit_done (XIC ic, XPointer client_data, XPointer call_data)
1298 {
1299 ((rxvt_term *)client_data)->make_current ();
1300 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_DONE, DT_END));
1301 }
1302
1303 static void
1304 xim_preedit_draw (XIC ic, XPointer client_data, XIMPreeditDrawCallbackStruct *call_data)
1305 {
1306 rxvt_term *term = (rxvt_term *)client_data;
1307 XIMText *text = call_data->text;
1308
1309 term->make_current ();
1310
1311 if (text)
1312 {
1313 wchar_t *str;
1314
1315 if (!text->encoding_is_wchar && text->string.multi_byte)
1316 {
1317 // of course, X makes it ugly again
1318 if (term->rs[Rs_imLocale])
1319 SET_LOCALE (term->rs[Rs_imLocale]);
1320
1321 str = rxvt_temp_buf<wchar_t> (text->length + 1);
1322 mbstowcs (str, text->string.multi_byte, text->length + 1);
1323
1324 if (term->rs[Rs_imLocale])
1325 SET_LOCALE (term->locale);
1326 }
1327 else
1328 str = text->string.wide_char;
1329
1330 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1331 DT_INT, call_data->caret,
1332 DT_INT, call_data->chg_first,
1333 DT_INT, call_data->chg_length,
1334 DT_LCS_LEN, (void *)text->feedback, text->feedback ? (int)text->length : 0,
1335 DT_WCS_LEN, str, str ? (int)text->length : 0,
1336 DT_END));
1337 }
1338 else
1339 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1340 DT_INT, call_data->caret,
1341 DT_INT, call_data->chg_first,
1342 DT_INT, call_data->chg_length,
1343 DT_END));
1344 }
1345
1346 #if 0
1347 static void
1348 xim_preedit_caret (XIC ic, XPointer client_data, XIMPreeditCaretCallbackStruct *call_data)
1349 {
1350 ((rxvt_term *)client_data)->make_current ();
1351 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_CARET,
1352 DT_INT, call_data->position,
1353 DT_INT, call_data->direction,
1354 DT_INT, call_data->style,
1355 DT_END));
1356 }
1357 #endif
1358
1359 #endif
1360
1361 /*
1362 * Try to open a XIM with the current modifiers, then see if we can
1363 * open a suitable preedit type
1364 */
1365 bool
1366 rxvt_term::im_get_ic (const char *modifiers)
1367 {
1368 int i, j, found;
1369 XIM xim;
1370 XPoint spot;
1371 XRectangle rect, status_rect, needed_rect;
1372 unsigned long fg, bg;
1373 const char *p;
1374 char **s;
1375 XIMStyles *xim_styles;
1376
1377 set_environ (env);
1378
1379 if (!((p = XSetLocaleModifiers (modifiers)) && *p))
1380 return false;
1381
1382 input_method = display->get_xim (locale, modifiers);
1383 if (input_method == NULL)
1384 return false;
1385
1386 xim = input_method->xim;
1387 spot.x = spot.y = -1;
1388
1389 xim_styles = NULL;
1390 if (XGetIMValues (xim, XNQueryInputStyle, &xim_styles, NULL)
1391 || !xim_styles || !xim_styles->count_styles)
1392 {
1393 im_destroy ();
1394 return false;
1395 }
1396
1397 const char *pet[] = { rs[Rs_preeditType], "OverTheSpot,OffTheSpot,Root,None" };
1398
1399 for (int pi = 0; pi < 2; pi++)
1400 {
1401 p = pet[pi];
1402
1403 if (!p)
1404 continue;
1405
1406 s = rxvt_strsplit (',', p);
1407
1408 for (i = found = 0; !found && s[i]; i++)
1409 {
1410 if (!strcmp (s[i], "OverTheSpot"))
1411 input_style = XIMPreeditPosition | XIMStatusNothing;
1412 else if (!strcmp (s[i], "OffTheSpot"))
1413 input_style = XIMPreeditArea | XIMStatusArea;
1414 else if (!strcmp (s[i], "Root"))
1415 input_style = XIMPreeditNothing | XIMStatusNothing;
1416 else if (!strcmp (s[i], "None"))
1417 input_style = XIMPreeditNone | XIMStatusNone;
1418 #ifdef ENABLE_XIM_ONTHESPOT
1419 else if (SHOULD_INVOKE (HOOK_XIM_PREEDIT_START) && !strcmp (s[i], "OnTheSpot"))
1420 input_style = XIMPreeditCallbacks | XIMStatusNothing;
1421 #endif
1422 else
1423 input_style = XIMPreeditNothing | XIMStatusNothing;
1424
1425 for (j = 0; j < xim_styles->count_styles; j++)
1426 if (input_style == xim_styles->supported_styles[j])
1427 {
1428 rxvt_free_strsplit (s);
1429
1430 found = 1;
1431 goto foundpet;
1432 }
1433
1434 }
1435
1436 rxvt_free_strsplit (s);
1437 }
1438
1439 foundpet:
1440
1441 XFree (xim_styles);
1442
1443 if (!found)
1444 {
1445 im_destroy ();
1446 return false;
1447 }
1448
1449 XFontSet fs = 0;
1450 XVaNestedList preedit_attr = 0, status_attr = 0;
1451
1452 if (input_style & (XIMPreeditPosition | XIMPreeditArea))
1453 {
1454 // fake us a font-set, please
1455 char **missing_charset_list;
1456 int missing_charset_count;
1457 char *def_string;
1458 char pat[512];
1459
1460 sprintf (pat,
1461 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1462 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1463 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1464 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1465 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1466 "*",
1467 fheight,
1468 fheight + 1, fheight - 1,
1469 fheight - 2, fheight + 2);
1470
1471 fs = XCreateFontSet (dpy, rs[Rs_imFont] ? rs[Rs_imFont] : pat,
1472 &missing_charset_list, &missing_charset_count, &def_string);
1473
1474 if (missing_charset_list)
1475 XFreeStringList (missing_charset_list);
1476
1477 if (!fs)
1478 {
1479 input_style &= ~(XIMPreeditPosition | XIMPreeditArea);
1480 rxvt_warn ("unable to create fontset for input method, try \"-pt Root\". Continuing.\n");
1481 }
1482 }
1483
1484 if (input_style & XIMPreeditPosition)
1485 {
1486 im_set_size (rect);
1487 im_set_position (spot);
1488 im_set_color (fg, bg);
1489
1490 preedit_attr = XVaCreateNestedList (0,
1491 XNForeground, fg,
1492 XNBackground, bg,
1493 XNArea, &rect,
1494 XNSpotLocation, &spot,
1495 XNFontSet, fs,
1496 NULL);
1497 }
1498 else if (input_style & XIMPreeditArea)
1499 {
1500 im_set_color (fg, bg);
1501
1502 /*
1503 * The necessary width of preedit area is unknown
1504 * until create input context.
1505 */
1506 needed_rect.width = 0;
1507 im_set_preedit_area (rect, status_rect, needed_rect);
1508
1509 preedit_attr = XVaCreateNestedList (0,
1510 XNForeground, fg,
1511 XNBackground, bg,
1512 XNArea, &rect,
1513 XNFontSet, fs,
1514 NULL);
1515 status_attr = XVaCreateNestedList (0,
1516 XNForeground, fg,
1517 XNBackground, bg,
1518 XNArea, &status_rect,
1519 XNFontSet, fs,
1520 NULL);
1521 }
1522 #if ENABLE_XIM_ONTHESPOT
1523 else if (input_style & XIMPreeditCallbacks)
1524 {
1525 XIMCallback xcb[4];
1526
1527 im_set_position (spot);
1528
1529 xcb[0].client_data = (XPointer)this; xcb[0].callback = (XIMProc)xim_preedit_start;
1530 xcb[1].client_data = (XPointer)this; xcb[1].callback = (XIMProc)xim_preedit_done;
1531 xcb[2].client_data = (XPointer)this; xcb[2].callback = (XIMProc)xim_preedit_draw;
1532 # if 0
1533 xcb[3].client_data = (XPointer)this; xcb[3].callback = (XIMProc)xim_preedit_caret;
1534 # endif
1535
1536 preedit_attr = XVaCreateNestedList (0,
1537 XNSpotLocation, &spot,
1538 XNPreeditStartCallback, &xcb[0],
1539 XNPreeditDoneCallback , &xcb[1],
1540 XNPreeditDrawCallback , &xcb[2],
1541 # if 0
1542 XNPreeditCaretCallback, &xcb[3],
1543 # endif
1544 NULL);
1545 }
1546 #endif
1547
1548 Input_Context = XCreateIC (xim,
1549 XNInputStyle, input_style,
1550 XNClientWindow, vt,
1551 XNFocusWindow, parent,
1552 preedit_attr ? XNPreeditAttributes : NULL,
1553 preedit_attr,
1554 status_attr ? XNStatusAttributes : NULL,
1555 status_attr, NULL);
1556
1557 if (preedit_attr) XFree (preedit_attr);
1558 if (status_attr) XFree (status_attr);
1559 if (fs) XFreeFontSet (dpy, fs);
1560
1561 if (Input_Context == NULL)
1562 {
1563 rxvt_warn ("failed to create input context, continuing without XIM.\n");
1564 im_destroy ();
1565 return false;
1566 }
1567
1568 #if 0
1569 // unfortunately, only the focus window is used by XIM, hard to fix
1570 if (!XGetICValues (Input_Context, XNFilterEvents, &vt_emask_xim, NULL))
1571 vt_select_input ();
1572 #endif
1573
1574 im_set_position ();
1575
1576 return true;
1577 }
1578
1579 void
1580 rxvt_term::im_cb ()
1581 {
1582 int i;
1583 const char *p;
1584 char **s;
1585 char buf[IMBUFSIZ];
1586
1587 make_current ();
1588
1589 im_destroy ();
1590
1591 if (Input_Context)
1592 return;
1593
1594 if (rs[Rs_imLocale])
1595 SET_LOCALE (rs[Rs_imLocale]);
1596
1597 p = rs[Rs_inputMethod];
1598 if (p && *p)
1599 {
1600 bool found = false;
1601
1602 s = rxvt_strsplit (',', p);
1603
1604 for (i = 0; s[i]; i++)
1605 {
1606 if (*s[i])
1607 {
1608 strcpy (buf, "@im=");
1609 strncat (buf, s[i], IMBUFSIZ - 5);
1610 if (im_get_ic (buf))
1611 {
1612 found = true;
1613 break;
1614 }
1615 }
1616 }
1617
1618 rxvt_free_strsplit (s);
1619
1620 if (found)
1621 goto done;
1622 }
1623
1624 /* try with XMODIFIERS env. var. */
1625 if (im_get_ic (""))
1626 goto done;
1627
1628 /* try with no modifiers base IF the user didn't specify an IM */
1629 if (im_get_ic ("@im=none"))
1630 goto done;
1631
1632 done:
1633 if (rs[Rs_imLocale])
1634 SET_LOCALE (locale);
1635 }
1636
1637 void
1638 rxvt_term::im_set_position ()
1639 {
1640 XRectangle preedit_rect, status_rect, *needed_rect;
1641 XVaNestedList preedit_attr, status_attr;
1642
1643 if (!Input_Context
1644 || !focus
1645 || !(input_style & (XIMPreeditArea | XIMPreeditPosition))
1646 || !im_is_running ())
1647 return;
1648
1649 if (input_style & XIMPreeditPosition)
1650 {
1651 im_set_size (preedit_rect);
1652 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1653
1654 XSetICValues (Input_Context,
1655 XNPreeditAttributes, preedit_attr, NULL);
1656 }
1657 else
1658 {
1659 /* Getting the necessary width of preedit area */
1660 status_attr = XVaCreateNestedList (0, XNAreaNeeded, &needed_rect, NULL);
1661 XGetICValues (Input_Context, XNStatusAttributes, status_attr, NULL);
1662 XFree (status_attr);
1663
1664 im_set_preedit_area (preedit_rect, status_rect, *needed_rect);
1665 XFree (needed_rect);
1666
1667 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1668 status_attr = XVaCreateNestedList (0, XNArea, &status_rect, NULL);
1669
1670 XSetICValues (Input_Context,
1671 XNPreeditAttributes, preedit_attr,
1672 XNStatusAttributes, status_attr,
1673 NULL);
1674
1675 XFree (status_attr);
1676 }
1677
1678 XFree (preedit_attr);
1679 }
1680 #endif /* USE_XIM */
1681
1682 void
1683 rxvt_term::get_window_origin (int &x, int &y)
1684 {
1685 Window cr;
1686 XTranslateCoordinates (dpy, parent, display->root, 0, 0, &x, &y, &cr);
1687 }
1688
1689 #ifdef HAVE_BG_PIXMAP
1690
1691 void
1692 rxvt_term::update_background ()
1693 {
1694 if (update_background_ev.is_active ())
1695 return;
1696
1697 ev_tstamp to_wait = 0.5 - (ev::now () - bg_valid_since);
1698
1699 if (to_wait <= 0.)
1700 bg_render ();
1701 else
1702 update_background_ev.start (to_wait);
1703 }
1704
1705 void
1706 rxvt_term::update_background_cb (ev::timer &w, int revents)
1707 {
1708 make_current ();
1709
1710 update_background_ev.stop ();
1711 bg_render ();
1712 refresh_check ();
1713 }
1714
1715 #endif /* HAVE_BG_PIXMAP */
1716
1717 /*----------------------- end-of-file (C source) -----------------------*/