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Revision: 1.390
Committed: Thu May 22 18:54:33 2014 UTC (10 years ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.389: +1 -1 lines
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GPLv3

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# 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) 2003-2010 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 pix_colors_unfocused [i].free (this);
260 #endif
261 }
262
263 clear ();
264
265 display->flush (); /* ideally .put should do this */
266 displays.put (display);
267 }
268
269 scr_release ();
270
271 /* clear all resources */
272 for (int i = 0; i < allocated.size (); i++)
273 free (allocated [i]);
274
275 free (selection.text);
276 free (selection.clip_text);
277 free (locale);
278 free (v_buffer);
279
280 delete selection_req;
281
282 delete envv;
283 delete argv;
284
285 #ifdef KEYSYM_RESOURCE
286 delete keyboard;
287 #endif
288 #ifndef NO_RESOURCES
289 XrmDestroyDatabase (option_db);
290 #endif
291 }
292
293 // child has exited, usually destroys
294 void
295 rxvt_term::child_cb (ev::child &w, int status)
296 {
297 HOOK_INVOKE ((this, HOOK_CHILD_EXIT, DT_INT, status, DT_END));
298
299 cmd_pid = 0;
300
301 if (!option (Opt_hold))
302 destroy ();
303 }
304
305 void
306 rxvt_term::destroy ()
307 {
308 if (destroy_ev.is_active ())
309 return;
310
311 HOOK_INVOKE ((this, HOOK_DESTROY, DT_END));
312
313 #if ENABLE_OVERLAY
314 scr_overlay_off ();
315 #endif
316
317 if (display)
318 {
319 #if USE_XIM
320 im_ev.stop (display);
321 #endif
322 scrollbar_ev.stop (display);
323 #if BG_IMAGE_FROM_ROOT || ENABLE_PERL
324 rootwin_ev.stop (display);
325 #endif
326 termwin_ev.stop (display);
327 vt_ev.stop (display);
328 }
329
330 flush_ev.stop ();
331 pty_ev.stop ();
332 #ifdef CURSOR_BLINK
333 cursor_blink_ev.stop ();
334 #endif
335 #ifdef TEXT_BLINK
336 text_blink_ev.stop ();
337 #endif
338 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
339 cont_scroll_ev.stop ();
340 #endif
341 #ifdef SELECTION_SCROLLING
342 sel_scroll_ev.stop ();
343 #endif
344 #ifdef POINTER_BLANK
345 pointer_ev.stop ();
346 #endif
347
348 destroy_ev.start ();
349 }
350
351 void
352 rxvt_term::destroy_cb (ev::idle &w, int revents)
353 {
354 make_current ();
355
356 delete this;
357 }
358
359 void
360 rxvt_term::set_option (uint8_t opt, bool set) NOTHROW
361 {
362 if (!opt)
363 return;
364
365 uint8_t mask = 1 << (opt & 7);
366 uint8_t &val = options [opt >> 3];
367
368 val = val & ~mask | (set ? mask : 0);
369 }
370
371 /*----------------------------------------------------------------------*/
372 /*
373 * Exit gracefully, clearing the utmp entry and restoring tty attributes
374 */
375 static XErrorHandler old_xerror_handler;
376
377 static void
378 rxvt_emergency_cleanup ()
379 {
380 for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++)
381 (*t)->emergency_cleanup ();
382 }
383
384 #if !ENABLE_MINIMAL
385 static void ecb_cold
386 print_x_error (Display *dpy, XErrorEvent *event)
387 {
388 char buffer[BUFSIZ];
389 char mesg[BUFSIZ];
390 char number[32];
391
392 rxvt_warn ("An X Error occurred, trying to continue after report.\n");
393
394 XGetErrorDatabaseText (dpy, "XlibMessage", "ErrorSerial", "Error Serial #%d", mesg, BUFSIZ);
395 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->serial);
396
397 XGetErrorText (dpy, event->error_code, buffer, BUFSIZ);
398 XGetErrorDatabaseText (dpy, "XlibMessage", "XError", "X Error", mesg, BUFSIZ);
399 rxvt_warn ("+ %s: %s\n", mesg, buffer);
400
401 XGetErrorDatabaseText (dpy, "XlibMessage", "MajorCode", "Request Major code %d", mesg, BUFSIZ);
402 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->request_code);
403
404 if (event->request_code >= 128)
405 {
406 #if 0
407 /* XListExtensions and probably query extensions hangs when there are multiple queues errors */
408 int nexts;
409 char **exts = XListExtensions (dpy, &nexts);
410
411 while (nexts)
412 {
413 char *extname = exts [nexts - 1];
414 int major, first_event, first_error;
415
416 if (XQueryExtension (dpy, extname, &major, &first_event, &first_error) && major == event->request_code)
417 {
418 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
419 rxvt_warn ("+ (which is extension %s minor code %d)\n", extname, event->minor_code);
420
421 snprintf (buffer, BUFSIZ, "%s.%d", extname, event->minor_code);
422 XGetErrorDatabaseText (dpy, "XRequest", buffer, "an unregistered minor code", buffer, BUFSIZ);
423 rxvt_warn ("+ (which is %s)\n", buffer);
424
425 break;
426 }
427
428 printf ("nextss %d %s\n", nexts, extname);//D
429 --nexts;
430 ++exts;
431 }
432 #else
433 int nexts = 0;
434 char **exts = 0;
435 #endif
436
437 if (!nexts)
438 {
439 rxvt_warn ("+ (which is an unknown extension)\n", buffer);
440
441 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
442 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->minor_code);
443
444 #if 0
445 sprintf (number, "RENDER.%d", event->minor_code);
446 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
447 rxvt_warn ("+ (which is %s)\n", buffer);
448 #endif
449 }
450
451 XFreeExtensionList (exts);
452 }
453 else
454 {
455 sprintf (number, "%d", event->request_code);
456 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
457 rxvt_warn ("+ (which is %s)\n", buffer);
458 }
459
460 if (event->error_code == BadWindow
461 || event->error_code == BadPixmap
462 || event->error_code == BadCursor
463 || event->error_code == BadFont
464 || event->error_code == BadDrawable
465 || event->error_code == BadColor
466 || event->error_code == BadGC
467 || event->error_code == BadIDChoice
468 || event->error_code == BadValue
469 || event->error_code == BadAtom)
470 {
471 if (event->error_code == BadValue)
472 XGetErrorDatabaseText (dpy, "XlibMessage", "Value", "Value 0x%x", mesg, BUFSIZ);
473 else if (event->error_code == BadAtom)
474 XGetErrorDatabaseText (dpy, "XlibMessage", "AtomID", "AtomID 0x%x", mesg, BUFSIZ);
475 else
476 XGetErrorDatabaseText (dpy, "XlibMessage", "ResourceID", "ResourceID 0x%x", mesg, BUFSIZ);
477
478 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->resourceid);
479 }
480 }
481 #endif
482
483 int ecb_cold
484 rxvt_xerror_handler (Display *display, XErrorEvent *event)
485 {
486 if (GET_R->allowedxerror == -1)
487 GET_R->allowedxerror = event->error_code;
488 else
489 {
490 // GET_R is most likely not the terminal which caused the error,
491 // so just output the error and continue
492 #if ENABLE_MINIMAL
493 old_xerror_handler (display, event);
494 #else
495 print_x_error (display, event);
496 #endif
497 }
498
499 return 0;
500 }
501
502 int ecb_cold
503 rxvt_xioerror_handler (Display *display)
504 {
505 rxvt_warn ("X connection to '%s' broken, unable to recover, exiting.\n",
506 DisplayString (display));
507 rxvt_emergency_cleanup ();
508 _exit (EXIT_FAILURE);
509 }
510
511 static struct sig_handlers
512 {
513 ev::sig sw_term, sw_int;
514
515 /*
516 * Catch a fatal signal and tidy up before quitting
517 */
518 void sig_term (ev::sig &w, int revents);
519
520 sig_handlers ()
521 {
522 sw_term.set<sig_handlers, &sig_handlers::sig_term> (this);
523 sw_int .set<sig_handlers, &sig_handlers::sig_term> (this);
524 }
525 } sig_handlers;
526
527 void
528 sig_handlers::sig_term (ev::sig &w, int revents)
529 {
530 rxvt_emergency_cleanup ();
531 w.stop ();
532 kill (getpid (), w.signum);
533 }
534
535 static void
536 rxvt_get_ttymode (struct termios *tio)
537 {
538 if (tcgetattr (STDIN_FILENO, tio) < 0)
539 memset (tio, 0, sizeof (struct termios));
540
541 for (int i = 0; i < NCCS; i++)
542 tio->c_cc[i] = VDISABLE;
543
544 tio->c_cc[VINTR] = CINTR;
545 tio->c_cc[VQUIT] = CQUIT;
546 tio->c_cc[VERASE] = CERASE;
547 #ifdef VERASE2
548 tio->c_cc[VERASE2] = CERASE2;
549 #endif
550 tio->c_cc[VKILL] = CKILL;
551 tio->c_cc[VEOF] = CEOF;
552 tio->c_cc[VSTART] = CSTART;
553 tio->c_cc[VSTOP] = CSTOP;
554 tio->c_cc[VSUSP] = CSUSP;
555 # ifdef VDSUSP
556 tio->c_cc[VDSUSP] = CDSUSP;
557 # endif
558 # ifdef VREPRINT
559 tio->c_cc[VREPRINT] = CRPRNT;
560 # endif
561 # ifdef VDISCRD
562 tio->c_cc[VDISCRD] = CFLUSH;
563 # endif
564 # ifdef VWERSE
565 tio->c_cc[VWERSE] = CWERASE;
566 # endif
567 # ifdef VLNEXT
568 tio->c_cc[VLNEXT] = CLNEXT;
569 # endif
570 # ifdef VSTATUS
571 tio->c_cc[VSTATUS] = CSTATUS;
572 # endif
573
574 # if VMIN != VEOF
575 tio->c_cc[VMIN] = 1;
576 # endif
577 # if VTIME != VEOL
578 tio->c_cc[VTIME] = 0;
579 # endif
580
581 /* input modes */
582 tio->c_iflag = (BRKINT | IGNPAR | ICRNL
583 # ifdef IMAXBEL
584 | IMAXBEL
585 # endif
586 | IXON);
587
588 /* output modes */
589 tio->c_oflag = (OPOST | ONLCR);
590
591 /* control modes */
592 tio->c_cflag = (CS8 | CREAD);
593
594 /* local modes */
595 tio->c_lflag = (ISIG | ICANON | IEXTEN | ECHO
596 # if defined (ECHOCTL) && defined (ECHOKE)
597 | ECHOCTL | ECHOKE
598 # endif
599 | ECHOE | ECHOK);
600 }
601
602 char **rxvt_environ; // startup environment
603
604 void
605 rxvt_init ()
606 {
607 assert (("fontMask must not overlap other RS masks",
608 0 == (RS_fontMask & (RS_Sel | RS_baseattrMask | RS_customMask | RS_bgMask | RS_fgMask))));
609
610 rxvt_get_ttymode (&rxvt_term::def_tio);
611
612 // get rid of stdin/stdout as we don't need them, to free resources
613 dup2 (STDERR_FILENO, STDIN_FILENO);
614 dup2 (STDERR_FILENO, STDOUT_FILENO);
615
616 if (!ev_default_loop ())
617 rxvt_fatal ("cannot initialise libev (bad value for LIBEV_METHODS?)\n");
618
619 rxvt_environ = environ;
620
621 signal (SIGHUP, SIG_IGN);
622 signal (SIGPIPE, SIG_IGN);
623
624 sig_handlers.sw_term.start (SIGTERM); ev_unref ();
625 sig_handlers.sw_int.start (SIGINT); ev_unref ();
626
627 old_xerror_handler = XSetErrorHandler ((XErrorHandler) rxvt_xerror_handler);
628 // TODO: handle this with exceptions and tolerate the memory loss
629 XSetIOErrorHandler (rxvt_xioerror_handler);
630
631 XrmInitialize ();
632
633 #if HAVE_PIXBUF
634 g_type_init ();
635 #endif
636 }
637
638 /*----------------------------------------------------------------------*/
639 /*
640 * window size/position calculations for XSizeHint and other storage.
641 * if width/height are non-zero then override calculated width/height
642 */
643 void
644 rxvt_term::window_calc (unsigned int newwidth, unsigned int newheight)
645 {
646 short recalc_x, recalc_y;
647 int x, y, flags;
648 unsigned int w, h;
649 unsigned int max_width, max_height;
650
651 szHint.flags = PMinSize | PResizeInc | PBaseSize | PWinGravity;
652 szHint.win_gravity = NorthWestGravity;
653 /* szHint.min_aspect.x = szHint.min_aspect.y = 1; */
654
655 recalc_x = recalc_y = 0;
656 flags = 0;
657
658 if (!parsed_geometry)
659 {
660 parsed_geometry = 1;
661
662 if (rs[Rs_geometry])
663 flags = XParseGeometry (rs[Rs_geometry], &x, &y, &w, &h);
664
665 if (flags & WidthValue)
666 {
667 if (!w)
668 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
669
670 ncol = clamp (w, 1, std::numeric_limits<int16_t>::max ());
671 szHint.flags |= USSize;
672 }
673
674 if (flags & HeightValue)
675 {
676 if (!h)
677 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
678
679 nrow = clamp (h, 1, std::numeric_limits<int16_t>::max ());
680 szHint.flags |= USSize;
681 }
682
683 if (flags & XValue)
684 {
685 szHint.x = x;
686 szHint.flags |= USPosition;
687
688 if (flags & XNegative)
689 {
690 recalc_x = 1;
691 szHint.win_gravity = NorthEastGravity;
692 }
693 }
694
695 if (flags & YValue)
696 {
697 szHint.y = y;
698 szHint.flags |= USPosition;
699
700 if (flags & YNegative)
701 {
702 recalc_y = 1;
703
704 if (szHint.win_gravity == NorthEastGravity)
705 szHint.win_gravity = SouthEastGravity;
706 else
707 szHint.win_gravity = SouthWestGravity;
708 }
709 }
710 }
711
712 /* TODO: BOUNDS */
713 width = ncol * fwidth;
714 height = nrow * fheight;
715 max_width = MAX_COLS * fwidth;
716 max_height = MAX_ROWS * fheight;
717
718 szHint.base_width = szHint.base_height = 2 * int_bwidth;
719
720 window_vt_x = window_vt_y = int_bwidth;
721
722 if (scrollBar.state)
723 {
724 int sb_w = scrollBar.total_width ();
725 szHint.base_width += sb_w;
726
727 if (!option (Opt_scrollBar_right))
728 window_vt_x += sb_w;
729 }
730
731 szHint.width_inc = fwidth;
732 szHint.height_inc = fheight;
733 szHint.min_width = szHint.base_width + szHint.width_inc;
734 szHint.min_height = szHint.base_height + szHint.height_inc;
735
736 if (newwidth && newwidth - szHint.base_width < max_width)
737 {
738 szHint.width = newwidth;
739 width = newwidth - szHint.base_width;
740 }
741 else
742 {
743 min_it (width, max_width);
744 szHint.width = szHint.base_width + width;
745 }
746
747 if (newheight && newheight - szHint.base_height < max_height)
748 {
749 szHint.height = newheight;
750 height = newheight - szHint.base_height;
751 }
752 else
753 {
754 min_it (height, max_height);
755 szHint.height = szHint.base_height + height;
756 }
757
758 if (recalc_x)
759 szHint.x += DisplayWidth (dpy, display->screen) - szHint.width - 2 * ext_bwidth;
760
761 if (recalc_y)
762 szHint.y += DisplayHeight (dpy, display->screen) - szHint.height - 2 * ext_bwidth;
763
764 ncol = width / fwidth;
765 nrow = height / fheight;
766
767 // When the size of the vt window is not a multiple of the cell
768 // size, i.e., when the wm does not honour our size hints, there are
769 // extra areas not covered by the terminal screen. Such gaps, when a
770 // bg pixmap is set, would have to be cleared manually to properly
771 // refresh the background. We take the simpler route and shrink the
772 // vt window so as to avoid creating gaps.
773 vt_width = ncol * fwidth;
774 vt_height = nrow * fheight;
775 }
776
777 /*----------------------------------------------------------------------*/
778 /*
779 * Tell the teletype handler what size the window is.
780 * Called after a window size change.
781 */
782 void
783 rxvt_term::tt_winch ()
784 {
785 if (pty->pty < 0)
786 return;
787
788 struct winsize ws;
789
790 ws.ws_col = ncol;
791 ws.ws_row = nrow;
792 ws.ws_xpixel = vt_width;
793 ws.ws_ypixel = vt_height;
794 ioctl (pty->pty, TIOCSWINSZ, &ws);
795
796 #if 0
797 // TIOCSWINSZ is supposed to do this automatically and correctly
798 if (cmd_pid) /* force through to the command */
799 kill (-cmd_pid, SIGWINCH);
800 #endif
801 }
802
803 /*----------------------------------------------------------------------*/
804 /* load and set the various fonts */
805 bool
806 rxvt_term::set_fonts ()
807 {
808 rxvt_fontset *fs = new rxvt_fontset (this);
809 rxvt_fontprop prop;
810
811 if (!fs
812 || !fs->populate (rs[Rs_font] ? rs[Rs_font] : "fixed")
813 || !fs->realize_font (1))
814 {
815 delete fs;
816 return false;
817 }
818
819 #if ENABLE_STYLES
820 for (int i = RS_styleCount; --i; )
821 if (fontset[i] != fontset[0])
822 delete fontset[i];
823 #endif
824
825 delete fontset[0];
826 fontset[0] = fs;
827
828 prop = (*fs)[rxvt_fontset::firstFont]->properties ();
829 prop.width = max (prop.width + letterSpace, 1);
830
831 fs->set_prop (prop, false);
832
833 fwidth = prop.width;
834 fheight = prop.height + lineSpace;
835 fbase = prop.ascent;
836
837 for (int style = 1; style < 4; style++)
838 {
839 #if ENABLE_STYLES
840 const char *res = rs[Rs_font + style];
841
842 if (res && !*res)
843 fontset[style] = fontset[0];
844 else
845 {
846 fontset[style] = fs = new rxvt_fontset (this);
847 rxvt_fontprop prop2 = prop;
848
849 if (res)
850 {
851 fs->populate (res);
852 fs->set_prop (prop2, false);
853 }
854 else
855 {
856 fs->populate (fontset[0]->fontdesc);
857
858 if (SET_STYLE (0, style) & RS_Bold) prop2.weight = rxvt_fontprop::bold;
859 if (SET_STYLE (0, style) & RS_Italic) prop2.slant = rxvt_fontprop::italic;
860
861 fs->set_prop (prop2, true);
862 }
863
864 }
865 #else
866 fontset[style] = fontset[0];
867 #endif
868 }
869
870 if (parent)
871 {
872 resize_all_windows (0, 0, 0);
873 scr_remap_chars ();
874 scr_touch (true);
875 }
876
877 return true;
878 }
879
880 void
881 rxvt_term::set_string_property (Atom prop, const char *str, int len)
882 {
883 XChangeProperty (dpy, parent,
884 prop, XA_STRING, 8, PropModeReplace,
885 (const unsigned char *)str, len >= 0 ? len : strlen (str));
886 }
887
888 void
889 rxvt_term::set_mbstring_property (Atom prop, const char *str, int len)
890 {
891 XTextProperty ct;
892
893 if (XmbTextListToTextProperty (dpy, (char **)&str, 1, XStdICCTextStyle, &ct) >= 0)
894 {
895 XSetTextProperty (dpy, parent, &ct, prop);
896 XFree (ct.value);
897 }
898 }
899
900 void
901 rxvt_term::set_utf8_property (Atom prop, const char *str, int len)
902 {
903 wchar_t *ws = rxvt_mbstowcs (str, len);
904 char *s = rxvt_wcstoutf8 (ws);
905
906 XChangeProperty (dpy, parent,
907 prop, xa[XA_UTF8_STRING], 8, PropModeReplace,
908 (const unsigned char *)s, strlen (s));
909
910 free (s);
911 free (ws);
912 }
913
914 /*----------------------------------------------------------------------*/
915 /*----------------------------------------------------------------------*/
916 /* xterm sequences - title, iconName, color (exptl) */
917 void
918 rxvt_term::set_title (const char *str)
919 {
920 set_mbstring_property (XA_WM_NAME, str);
921 #if ENABLE_EWMH
922 set_utf8_property (xa[XA_NET_WM_NAME], str);
923 #endif
924 }
925
926 void
927 rxvt_term::set_icon_name (const char *str)
928 {
929 set_mbstring_property (XA_WM_ICON_NAME, str);
930 #if ENABLE_EWMH
931 set_utf8_property (xa[XA_NET_WM_ICON_NAME], str);
932 #endif
933 }
934
935 void
936 rxvt_term::set_window_color (int idx, const char *color)
937 {
938 #ifdef XTERM_COLOR_CHANGE
939 rxvt_color xcol;
940
941 if (color == NULL || *color == '\0')
942 return;
943
944 color = strdup (color);
945 allocated.push_back ((void *)color);
946 rs[Rs_color + idx] = color;
947
948 /* handle color aliases */
949 if (isdigit (*color))
950 {
951 int i = atoi (color);
952
953 if (i >= 8 && i <= 15)
954 {
955 /* bright colors */
956 pix_colors_focused[idx] = pix_colors_focused[minBrightCOLOR + i - 8];
957 goto done;
958 }
959
960 if (i >= 0 && i <= 7)
961 {
962 /* normal colors */
963 pix_colors_focused[idx] = pix_colors_focused[minCOLOR + i];
964 goto done;
965 }
966 }
967
968 set_color (xcol, color);
969
970 /*
971 * FIXME: should free colors here, but no idea how to do it so instead,
972 * so just keep gobbling up the colormap
973 */
974
975 pix_colors_focused[idx] = xcol;
976
977 done:
978 /*TODO: handle Color_BD, scrollbar background, etc. */
979
980 update_fade_color (idx);
981 recolour_cursor ();
982 scr_recolour ();
983 #endif /* XTERM_COLOR_CHANGE */
984 }
985
986 void
987 rxvt_term::recolour_cursor ()
988 {
989 XColor fg, bg;
990
991 (ISSET_PIXCOLOR (Color_pointer_fg)
992 ? pix_colors_focused[Color_pointer_fg]
993 : pix_colors_focused[Color_fg]).get (fg);
994
995 (ISSET_PIXCOLOR (Color_pointer_bg)
996 ? pix_colors_focused[Color_pointer_bg]
997 : pix_colors_focused[Color_bg]).get (bg);
998
999 XRecolorCursor (dpy, TermWin_cursor, &fg, &bg);
1000 }
1001
1002 /*----------------------------------------------------------------------*/
1003 /*
1004 * find if fg/bg matches any of the normal (low-intensity) colors
1005 */
1006 char *
1007 rxvt_term::get_colorfgbg ()
1008 {
1009 unsigned int i;
1010 const char *xpmb = "";
1011 char fstr[] = "default";
1012 char bstr[] = "default";
1013 char *env_colorfgbg;
1014
1015 for (i = Color_Black; i <= Color_White; i++)
1016 if (pix_colors[Color_fg] == pix_colors[i])
1017 {
1018 sprintf (fstr, "%d", i - Color_Black);
1019 break;
1020 }
1021
1022 for (i = Color_Black; i <= Color_White; i++)
1023 if (pix_colors[Color_bg] == pix_colors[i])
1024 {
1025 sprintf (bstr, "%d", i - Color_Black);
1026 #if BG_IMAGE_FROM_FILE
1027 xpmb = "default;";
1028 #endif
1029 break;
1030 }
1031
1032 env_colorfgbg = (char *)rxvt_malloc (sizeof ("COLORFGBG=default;default;bg"));
1033 sprintf (env_colorfgbg, "COLORFGBG=%s;%s%s", fstr, xpmb, bstr);
1034 return env_colorfgbg;
1035 }
1036
1037 /*----------------------------------------------------------------------*/
1038
1039 bool
1040 rxvt_term::set_color (rxvt_color &color, const char *name)
1041 {
1042 if (color.set (this, name))
1043 return true;
1044
1045 rxvt_warn ("can't get colour '%s', continuing without.\n", name);
1046 return false;
1047 }
1048
1049 void
1050 rxvt_term::alias_color (int dst, int src)
1051 {
1052 pix_colors[dst].set (this, rs[Rs_color + dst] = rs[Rs_color + src]);
1053 }
1054
1055 /* -------------------------------------------------------------------- *
1056 * - WINDOW RESIZING - *
1057 * -------------------------------------------------------------------- */
1058 void
1059 rxvt_term::resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent)
1060 {
1061 int fix_screen;
1062 int old_width = szHint.width;
1063 int old_height = szHint.height;
1064
1065 window_calc (newwidth, newheight);
1066
1067 bool set_hint = !HOOK_INVOKE ((this, HOOK_RESIZE_ALL_WINDOWS, DT_INT, newwidth, DT_INT, newheight, DT_END));
1068
1069 // to avoid races between us and the wm, we clear the incremental size hints around the xresizewindow
1070 if (set_hint)
1071 {
1072 szHint.flags &= ~(PBaseSize | PResizeInc);
1073 XSetWMNormalHints (dpy, parent, &szHint);
1074 szHint.flags |= PBaseSize | PResizeInc;
1075 }
1076
1077 if (!ignoreparent)
1078 {
1079 #ifdef SMART_RESIZE
1080 /*
1081 * resize by Marius Gedminas <marius.gedminas@uosis.mif.vu.lt>
1082 * reposition window on resize depending on placement on screen
1083 */
1084 int x, y, x1, y1;
1085 int dx, dy;
1086 unsigned int unused_w1, unused_h1, unused_b1, unused_d1;
1087 Window unused_cr;
1088
1089 XTranslateCoordinates (dpy, parent, display->root,
1090 0, 0, &x, &y, &unused_cr);
1091 XGetGeometry (dpy, parent, &unused_cr, &x1, &y1,
1092 &unused_w1, &unused_h1, &unused_b1, &unused_d1);
1093 /*
1094 * if display->root isn't the parent window, a WM will probably have offset
1095 * our position for handles and decorations. Counter it
1096 */
1097 if (x1 != x || y1 != y)
1098 {
1099 x -= x1;
1100 y -= y1;
1101 }
1102
1103 x1 = (DisplayWidth (dpy, display->screen) - old_width ) / 2;
1104 y1 = (DisplayHeight (dpy, display->screen) - old_height) / 2;
1105 dx = old_width - szHint.width;
1106 dy = old_height - szHint.height;
1107
1108 /* Check position of the center of the window */
1109 if (x < x1) /* left half */
1110 dx = 0;
1111 else if (x == x1) /* exact center */
1112 dx /= 2;
1113 if (y < y1) /* top half */
1114 dy = 0;
1115 else if (y == y1) /* exact center */
1116 dy /= 2;
1117
1118 XMoveResizeWindow (dpy, parent, x + dx, y + dy,
1119 szHint.width, szHint.height);
1120 #else
1121 XResizeWindow (dpy, parent, szHint.width, szHint.height);
1122 #endif
1123 }
1124
1125 if (set_hint)
1126 XSetWMNormalHints (dpy, parent, &szHint);
1127
1128 fix_screen = ncol != prev_ncol || nrow != prev_nrow;
1129
1130 if (fix_screen || newwidth != old_width || newheight != old_height)
1131 {
1132 if (scrollBar.state)
1133 scrollBar.resize ();
1134
1135 XMoveResizeWindow (dpy, vt,
1136 window_vt_x, window_vt_y,
1137 vt_width, vt_height);
1138
1139 HOOK_INVOKE ((this, HOOK_SIZE_CHANGE, DT_INT, newwidth, DT_INT, newheight, DT_END));
1140
1141 #ifdef HAVE_BG_PIXMAP
1142 if (bg_window_size_sensitive ())
1143 update_background ();
1144 #endif
1145 }
1146
1147 if (fix_screen || old_height == 0)
1148 scr_reset ();
1149
1150 #if USE_XIM
1151 im_set_position ();
1152 #endif
1153 }
1154
1155 /*
1156 * Set the width/height of the vt window in characters. Units are pixels.
1157 * good for toggling 80/132 columns
1158 */
1159 void
1160 rxvt_term::set_widthheight (unsigned int newwidth, unsigned int newheight)
1161 {
1162 XWindowAttributes wattr;
1163
1164 if (newwidth == 0 || newheight == 0)
1165 {
1166 XGetWindowAttributes (dpy, display->root, &wattr);
1167
1168 if (newwidth == 0)
1169 newwidth = wattr.width - szHint.base_width;
1170 if (newheight == 0)
1171 newheight = wattr.height - szHint.base_height;
1172 }
1173
1174 if (newwidth != vt_width || newheight != vt_height)
1175 {
1176 newwidth += szHint.base_width;
1177 newheight += szHint.base_height;
1178 resize_all_windows (newwidth, newheight, 0);
1179 }
1180 }
1181
1182 /* -------------------------------------------------------------------- *
1183 * - X INPUT METHOD ROUTINES - *
1184 * -------------------------------------------------------------------- */
1185 #if USE_XIM
1186
1187 void
1188 rxvt_term::im_set_color (unsigned long &fg, unsigned long &bg)
1189 {
1190 fg = pix_colors [Color_fg];
1191 bg = pix_colors [Color_bg];
1192 }
1193
1194 void
1195 rxvt_term::im_set_size (XRectangle &size)
1196 {
1197 // the int_bwidth terms make no sense to me
1198 size.x = int_bwidth;
1199 size.y = int_bwidth;
1200 size.width = Width2Pixel (ncol) + int_bwidth;
1201 size.height = Height2Pixel (nrow) + int_bwidth;
1202 }
1203
1204 void
1205 rxvt_term::im_set_preedit_area (XRectangle &preedit_rect,
1206 XRectangle &status_rect,
1207 const XRectangle &needed_rect)
1208 {
1209 preedit_rect.x = needed_rect.width;
1210 preedit_rect.y = 0;
1211 preedit_rect.width = Width2Pixel (ncol) - needed_rect.width + 1;
1212 preedit_rect.height = fheight;
1213
1214 status_rect.x = 0;
1215 status_rect.y = 0;
1216 status_rect.width = needed_rect.width ? needed_rect.width : Width2Pixel (ncol) + 1;
1217 status_rect.height = fheight;
1218 }
1219
1220 /* Checking whether input method is running. */
1221 bool
1222 rxvt_term::im_is_running ()
1223 {
1224 Atom atom;
1225 Window win;
1226 char server[IMBUFSIZ];
1227
1228 /* get current locale modifier */
1229 if (char *p = XSetLocaleModifiers (0))
1230 {
1231 strcpy (server, "@server=");
1232 strncat (server, p + 4, IMBUFSIZ - 9); /* skip "@im=" */
1233
1234 if (p = strchr (server + 1, '@')) /* first one only */
1235 *p = '\0';
1236
1237 atom = XInternAtom (dpy, server, False);
1238 win = XGetSelectionOwner (dpy, atom);
1239
1240 if (win != None)
1241 return true;
1242 }
1243
1244 return false;
1245 }
1246
1247 void
1248 rxvt_term::im_send_spot ()
1249 {
1250 XPoint nspot;
1251 XVaNestedList preedit_attr;
1252
1253 if (!Input_Context
1254 || !focus
1255 || !(input_style & (XIMPreeditPosition | XIMPreeditCallbacks)))
1256 return;
1257
1258 im_set_position (nspot);
1259
1260 if (nspot.x == spot.x && nspot.y == spot.y)
1261 return;
1262
1263 spot = nspot;
1264
1265 preedit_attr = XVaCreateNestedList (0, XNSpotLocation, &spot, NULL);
1266 XSetICValues (Input_Context, XNPreeditAttributes, preedit_attr, NULL);
1267 XFree (preedit_attr);
1268 }
1269
1270 void
1271 rxvt_term::im_destroy ()
1272 {
1273 if (input_method)
1274 {
1275 if (Input_Context && input_method->xim)
1276 XDestroyIC (Input_Context);
1277
1278 display->put_xim (input_method);
1279 input_method = 0;
1280 }
1281
1282 Input_Context = 0;
1283 }
1284
1285 #ifdef ENABLE_XIM_ONTHESPOT
1286
1287 static void
1288 xim_preedit_start (XIC ic, XPointer client_data, XPointer call_data)
1289 {
1290 ((rxvt_term *)client_data)->make_current ();
1291 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_START, DT_END));
1292 }
1293
1294 static void
1295 xim_preedit_done (XIC ic, XPointer client_data, XPointer call_data)
1296 {
1297 ((rxvt_term *)client_data)->make_current ();
1298 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_DONE, DT_END));
1299 }
1300
1301 static void
1302 xim_preedit_draw (XIC ic, XPointer client_data, XIMPreeditDrawCallbackStruct *call_data)
1303 {
1304 rxvt_term *term = (rxvt_term *)client_data;
1305 XIMText *text = call_data->text;
1306
1307 term->make_current ();
1308
1309 if (text)
1310 {
1311 wchar_t *str;
1312
1313 if (!text->encoding_is_wchar && text->string.multi_byte)
1314 {
1315 // of course, X makes it ugly again
1316 if (term->rs[Rs_imLocale])
1317 SET_LOCALE (term->rs[Rs_imLocale]);
1318
1319 str = rxvt_temp_buf<wchar_t> (text->length + 1);
1320 mbstowcs (str, text->string.multi_byte, text->length + 1);
1321
1322 if (term->rs[Rs_imLocale])
1323 SET_LOCALE (term->locale);
1324 }
1325 else
1326 str = text->string.wide_char;
1327
1328 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1329 DT_INT, call_data->caret,
1330 DT_INT, call_data->chg_first,
1331 DT_INT, call_data->chg_length,
1332 DT_LCS_LEN, (void *)text->feedback, text->feedback ? (int)text->length : 0,
1333 DT_WCS_LEN, str, str ? (int)text->length : 0,
1334 DT_END));
1335 }
1336 else
1337 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1338 DT_INT, call_data->caret,
1339 DT_INT, call_data->chg_first,
1340 DT_INT, call_data->chg_length,
1341 DT_END));
1342 }
1343
1344 #if 0
1345 static void
1346 xim_preedit_caret (XIC ic, XPointer client_data, XIMPreeditCaretCallbackStruct *call_data)
1347 {
1348 ((rxvt_term *)client_data)->make_current ();
1349 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_CARET,
1350 DT_INT, call_data->position,
1351 DT_INT, call_data->direction,
1352 DT_INT, call_data->style,
1353 DT_END));
1354 }
1355 #endif
1356
1357 #endif
1358
1359 /*
1360 * Try to open a XIM with the current modifiers, then see if we can
1361 * open a suitable preedit type
1362 */
1363 bool
1364 rxvt_term::im_get_ic (const char *modifiers)
1365 {
1366 int i, j, found;
1367 XIM xim;
1368 XPoint spot;
1369 XRectangle rect, status_rect, needed_rect;
1370 unsigned long fg, bg;
1371 const char *p;
1372 char **s;
1373 XIMStyles *xim_styles;
1374
1375 set_environ (envv);
1376
1377 if (!((p = XSetLocaleModifiers (modifiers)) && *p))
1378 return false;
1379
1380 input_method = display->get_xim (locale, modifiers);
1381 if (input_method == NULL)
1382 return false;
1383
1384 xim = input_method->xim;
1385 spot.x = spot.y = -1;
1386
1387 xim_styles = NULL;
1388 if (XGetIMValues (xim, XNQueryInputStyle, &xim_styles, NULL)
1389 || !xim_styles || !xim_styles->count_styles)
1390 {
1391 im_destroy ();
1392 return false;
1393 }
1394
1395 const char *pet[] = { rs[Rs_preeditType], "OverTheSpot,OffTheSpot,Root,None" };
1396
1397 for (int pi = 0; pi < 2; pi++)
1398 {
1399 p = pet[pi];
1400
1401 if (!p)
1402 continue;
1403
1404 s = rxvt_strsplit (',', p);
1405
1406 for (i = found = 0; !found && s[i]; i++)
1407 {
1408 if (!strcmp (s[i], "OverTheSpot"))
1409 input_style = XIMPreeditPosition | XIMStatusNothing;
1410 else if (!strcmp (s[i], "OffTheSpot"))
1411 input_style = XIMPreeditArea | XIMStatusArea;
1412 else if (!strcmp (s[i], "Root"))
1413 input_style = XIMPreeditNothing | XIMStatusNothing;
1414 else if (!strcmp (s[i], "None"))
1415 input_style = XIMPreeditNone | XIMStatusNone;
1416 #ifdef ENABLE_XIM_ONTHESPOT
1417 else if (SHOULD_INVOKE (HOOK_XIM_PREEDIT_START) && !strcmp (s[i], "OnTheSpot"))
1418 input_style = XIMPreeditCallbacks | XIMStatusNothing;
1419 #endif
1420 else
1421 input_style = XIMPreeditNothing | XIMStatusNothing;
1422
1423 for (j = 0; j < xim_styles->count_styles; j++)
1424 if (input_style == xim_styles->supported_styles[j])
1425 {
1426 rxvt_free_strsplit (s);
1427
1428 found = 1;
1429 goto foundpet;
1430 }
1431
1432 }
1433
1434 rxvt_free_strsplit (s);
1435 }
1436
1437 foundpet:
1438
1439 XFree (xim_styles);
1440
1441 if (!found)
1442 {
1443 im_destroy ();
1444 return false;
1445 }
1446
1447 XFontSet fs = 0;
1448 XVaNestedList preedit_attr = 0, status_attr = 0;
1449
1450 if (input_style & (XIMPreeditPosition | XIMPreeditArea))
1451 {
1452 // fake us a font-set, please
1453 char **missing_charset_list;
1454 int missing_charset_count;
1455 char *def_string;
1456 char pat[512];
1457
1458 sprintf (pat,
1459 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1460 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1461 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1462 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1463 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1464 "*",
1465 fheight,
1466 fheight + 1, fheight - 1,
1467 fheight - 2, fheight + 2);
1468
1469 fs = XCreateFontSet (dpy, rs[Rs_imFont] ? rs[Rs_imFont] : pat,
1470 &missing_charset_list, &missing_charset_count, &def_string);
1471
1472 if (missing_charset_list)
1473 XFreeStringList (missing_charset_list);
1474
1475 if (!fs)
1476 {
1477 input_style &= ~(XIMPreeditPosition | XIMPreeditArea);
1478 rxvt_warn ("unable to create fontset for input method, try \"-pt Root\". Continuing.\n");
1479 }
1480 }
1481
1482 if (input_style & XIMPreeditPosition)
1483 {
1484 im_set_size (rect);
1485 im_set_position (spot);
1486 im_set_color (fg, bg);
1487
1488 preedit_attr = XVaCreateNestedList (0,
1489 XNForeground, fg,
1490 XNBackground, bg,
1491 XNArea, &rect,
1492 XNSpotLocation, &spot,
1493 XNFontSet, fs,
1494 NULL);
1495 }
1496 else if (input_style & XIMPreeditArea)
1497 {
1498 im_set_color (fg, bg);
1499
1500 /*
1501 * The necessary width of preedit area is unknown
1502 * until create input context.
1503 */
1504 needed_rect.width = 0;
1505 im_set_preedit_area (rect, status_rect, needed_rect);
1506
1507 preedit_attr = XVaCreateNestedList (0,
1508 XNForeground, fg,
1509 XNBackground, bg,
1510 XNArea, &rect,
1511 XNFontSet, fs,
1512 NULL);
1513 status_attr = XVaCreateNestedList (0,
1514 XNForeground, fg,
1515 XNBackground, bg,
1516 XNArea, &status_rect,
1517 XNFontSet, fs,
1518 NULL);
1519 }
1520 #if ENABLE_XIM_ONTHESPOT
1521 else if (input_style & XIMPreeditCallbacks)
1522 {
1523 XIMCallback xcb[4];
1524
1525 im_set_position (spot);
1526
1527 xcb[0].client_data = (XPointer)this; xcb[0].callback = (XIMProc)xim_preedit_start;
1528 xcb[1].client_data = (XPointer)this; xcb[1].callback = (XIMProc)xim_preedit_done;
1529 xcb[2].client_data = (XPointer)this; xcb[2].callback = (XIMProc)xim_preedit_draw;
1530 # if 0
1531 xcb[3].client_data = (XPointer)this; xcb[3].callback = (XIMProc)xim_preedit_caret;
1532 # endif
1533
1534 preedit_attr = XVaCreateNestedList (0,
1535 XNSpotLocation, &spot,
1536 XNPreeditStartCallback, &xcb[0],
1537 XNPreeditDoneCallback , &xcb[1],
1538 XNPreeditDrawCallback , &xcb[2],
1539 # if 0
1540 XNPreeditCaretCallback, &xcb[3],
1541 # endif
1542 NULL);
1543 }
1544 #endif
1545
1546 Input_Context = XCreateIC (xim,
1547 XNInputStyle, input_style,
1548 XNClientWindow, vt,
1549 XNFocusWindow, parent,
1550 preedit_attr ? XNPreeditAttributes : NULL,
1551 preedit_attr,
1552 status_attr ? XNStatusAttributes : NULL,
1553 status_attr, NULL);
1554
1555 if (preedit_attr) XFree (preedit_attr);
1556 if (status_attr) XFree (status_attr);
1557 if (fs) XFreeFontSet (dpy, fs);
1558
1559 if (Input_Context == NULL)
1560 {
1561 rxvt_warn ("failed to create input context, continuing without XIM.\n");
1562 im_destroy ();
1563 return false;
1564 }
1565
1566 #if 0
1567 // unfortunately, only the focus window is used by XIM, hard to fix
1568 if (!XGetICValues (Input_Context, XNFilterEvents, &vt_emask_xim, NULL))
1569 vt_select_input ();
1570 #endif
1571
1572 im_set_position ();
1573
1574 return true;
1575 }
1576
1577 void
1578 rxvt_term::im_cb ()
1579 {
1580 int i;
1581 const char *p;
1582 char **s;
1583 char buf[IMBUFSIZ];
1584
1585 make_current ();
1586
1587 im_destroy ();
1588
1589 if (Input_Context)
1590 return;
1591
1592 if (rs[Rs_imLocale])
1593 SET_LOCALE (rs[Rs_imLocale]);
1594
1595 p = rs[Rs_inputMethod];
1596 if (p && *p)
1597 {
1598 bool found = false;
1599
1600 s = rxvt_strsplit (',', p);
1601
1602 for (i = 0; s[i]; i++)
1603 {
1604 if (*s[i])
1605 {
1606 strcpy (buf, "@im=");
1607 strncat (buf, s[i], IMBUFSIZ - 5);
1608 if (im_get_ic (buf))
1609 {
1610 found = true;
1611 break;
1612 }
1613 }
1614 }
1615
1616 rxvt_free_strsplit (s);
1617
1618 if (found)
1619 goto done;
1620 }
1621
1622 /* try with XMODIFIERS env. var. */
1623 if (im_get_ic (""))
1624 goto done;
1625
1626 /* try with no modifiers base IF the user didn't specify an IM */
1627 if (im_get_ic ("@im=none"))
1628 goto done;
1629
1630 done:
1631 if (rs[Rs_imLocale])
1632 SET_LOCALE (locale);
1633 }
1634
1635 void
1636 rxvt_term::im_set_position ()
1637 {
1638 XRectangle preedit_rect, status_rect, *needed_rect;
1639 XVaNestedList preedit_attr, status_attr;
1640
1641 if (!Input_Context
1642 || !focus
1643 || !(input_style & (XIMPreeditArea | XIMPreeditPosition))
1644 || !im_is_running ())
1645 return;
1646
1647 if (input_style & XIMPreeditPosition)
1648 {
1649 im_set_size (preedit_rect);
1650 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1651
1652 XSetICValues (Input_Context,
1653 XNPreeditAttributes, preedit_attr, NULL);
1654 }
1655 else
1656 {
1657 /* Getting the necessary width of preedit area */
1658 status_attr = XVaCreateNestedList (0, XNAreaNeeded, &needed_rect, NULL);
1659 XGetICValues (Input_Context, XNStatusAttributes, status_attr, NULL);
1660 XFree (status_attr);
1661
1662 im_set_preedit_area (preedit_rect, status_rect, *needed_rect);
1663 XFree (needed_rect);
1664
1665 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1666 status_attr = XVaCreateNestedList (0, XNArea, &status_rect, NULL);
1667
1668 XSetICValues (Input_Context,
1669 XNPreeditAttributes, preedit_attr,
1670 XNStatusAttributes, status_attr,
1671 NULL);
1672
1673 XFree (status_attr);
1674 }
1675
1676 XFree (preedit_attr);
1677 }
1678 #endif /* USE_XIM */
1679
1680 void
1681 rxvt_term::get_window_origin (int &x, int &y)
1682 {
1683 Window cr;
1684 XTranslateCoordinates (dpy, parent, display->root, 0, 0, &x, &y, &cr);
1685 }
1686
1687 #ifdef HAVE_BG_PIXMAP
1688
1689 void
1690 rxvt_term::update_background ()
1691 {
1692 if (update_background_ev.is_active ())
1693 return;
1694
1695 ev_tstamp to_wait = 0.5 - (ev::now () - bg_valid_since);
1696
1697 if (to_wait <= 0.)
1698 bg_render ();
1699 else
1700 update_background_ev.start (to_wait);
1701 }
1702
1703 void
1704 rxvt_term::update_background_cb (ev::timer &w, int revents)
1705 {
1706 make_current ();
1707
1708 update_background_ev.stop ();
1709 bg_render ();
1710 refresh_check ();
1711 }
1712
1713 #endif /* HAVE_BG_PIXMAP */
1714
1715 /*----------------------- end-of-file (C source) -----------------------*/