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Revision: 1.393
Committed: Sat Dec 13 09:50:43 2014 UTC (9 years, 5 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.392: +75 -73 lines
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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 if (env && memcmp (env, envv->begin (), envv->size () * sizeof (char *)))
283 rxvt_warn ("env has been modified, probably as a result of a lib calling setenv.\n");
284
285 delete env;
286
287 delete envv;
288 delete argv;
289
290 #ifdef KEYSYM_RESOURCE
291 delete keyboard;
292 #endif
293 #ifndef NO_RESOURCES
294 XrmDestroyDatabase (option_db);
295 #endif
296
297 SET_R ((rxvt_term *)0);
298 }
299
300 // child has exited, usually destroys
301 void
302 rxvt_term::child_cb (ev::child &w, int status)
303 {
304 HOOK_INVOKE ((this, HOOK_CHILD_EXIT, DT_INT, status, DT_END));
305
306 cmd_pid = 0;
307
308 if (!option (Opt_hold))
309 destroy ();
310 }
311
312 void
313 rxvt_term::destroy ()
314 {
315 if (destroy_ev.is_active ())
316 return;
317
318 HOOK_INVOKE ((this, HOOK_DESTROY, DT_END));
319
320 #if ENABLE_OVERLAY
321 scr_overlay_off ();
322 #endif
323
324 if (display)
325 {
326 #if USE_XIM
327 im_ev.stop (display);
328 #endif
329 scrollbar_ev.stop (display);
330 #if BG_IMAGE_FROM_ROOT || ENABLE_PERL
331 rootwin_ev.stop (display);
332 #endif
333 termwin_ev.stop (display);
334 vt_ev.stop (display);
335 }
336
337 flush_ev.stop ();
338 pty_ev.stop ();
339 #ifdef CURSOR_BLINK
340 cursor_blink_ev.stop ();
341 #endif
342 #ifdef TEXT_BLINK
343 text_blink_ev.stop ();
344 #endif
345 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
346 cont_scroll_ev.stop ();
347 #endif
348 #ifdef SELECTION_SCROLLING
349 sel_scroll_ev.stop ();
350 #endif
351 #ifdef POINTER_BLANK
352 pointer_ev.stop ();
353 #endif
354
355 destroy_ev.start ();
356 }
357
358 void
359 rxvt_term::destroy_cb (ev::idle &w, int revents)
360 {
361 make_current ();
362
363 delete this;
364 }
365
366 void
367 rxvt_term::set_option (uint8_t opt, bool set) NOTHROW
368 {
369 if (!opt)
370 return;
371
372 uint8_t mask = 1 << (opt & 7);
373 uint8_t &val = options [opt >> 3];
374
375 val = val & ~mask | (set ? mask : 0);
376 }
377
378 /*----------------------------------------------------------------------*/
379 /*
380 * Exit gracefully, clearing the utmp entry and restoring tty attributes
381 */
382 static XErrorHandler old_xerror_handler;
383
384 static void
385 rxvt_emergency_cleanup ()
386 {
387 for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++)
388 (*t)->emergency_cleanup ();
389 }
390
391 #if !ENABLE_MINIMAL
392 static void ecb_cold
393 print_x_error (Display *dpy, XErrorEvent *event)
394 {
395 char buffer[BUFSIZ];
396 char mesg[BUFSIZ];
397 char number[32];
398
399 rxvt_warn ("An X Error occurred, trying to continue after report.\n");
400
401 XGetErrorDatabaseText (dpy, "XlibMessage", "ErrorSerial", "Error Serial #%d", mesg, BUFSIZ);
402 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->serial);
403
404 XGetErrorText (dpy, event->error_code, buffer, BUFSIZ);
405 XGetErrorDatabaseText (dpy, "XlibMessage", "XError", "X Error", mesg, BUFSIZ);
406 rxvt_warn ("+ %s: %s\n", mesg, buffer);
407
408 XGetErrorDatabaseText (dpy, "XlibMessage", "MajorCode", "Request Major code %d", mesg, BUFSIZ);
409 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->request_code);
410
411 if (event->request_code >= 128)
412 {
413 #if 0
414 /* XListExtensions and probably query extensions hangs when there are multiple queues errors */
415 int nexts;
416 char **exts = XListExtensions (dpy, &nexts);
417
418 while (nexts)
419 {
420 char *extname = exts [nexts - 1];
421 int major, first_event, first_error;
422
423 if (XQueryExtension (dpy, extname, &major, &first_event, &first_error) && major == event->request_code)
424 {
425 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
426 rxvt_warn ("+ (which is extension %s minor code %d)\n", extname, event->minor_code);
427
428 snprintf (buffer, BUFSIZ, "%s.%d", extname, event->minor_code);
429 XGetErrorDatabaseText (dpy, "XRequest", buffer, "an unregistered minor code", buffer, BUFSIZ);
430 rxvt_warn ("+ (which is %s)\n", buffer);
431
432 break;
433 }
434
435 printf ("nextss %d %s\n", nexts, extname);//D
436 --nexts;
437 ++exts;
438 }
439 #else
440 int nexts = 0;
441 char **exts = 0;
442 #endif
443
444 if (!nexts)
445 {
446 rxvt_warn ("+ (which is an unknown extension)\n", buffer);
447
448 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
449 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->minor_code);
450
451 #if 0
452 sprintf (number, "RENDER.%d", event->minor_code);
453 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
454 rxvt_warn ("+ (which is %s)\n", buffer);
455 #endif
456 }
457
458 XFreeExtensionList (exts);
459 }
460 else
461 {
462 sprintf (number, "%d", event->request_code);
463 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
464 rxvt_warn ("+ (which is %s)\n", buffer);
465 }
466
467 if (event->error_code == BadWindow
468 || event->error_code == BadPixmap
469 || event->error_code == BadCursor
470 || event->error_code == BadFont
471 || event->error_code == BadDrawable
472 || event->error_code == BadColor
473 || event->error_code == BadGC
474 || event->error_code == BadIDChoice
475 || event->error_code == BadValue
476 || event->error_code == BadAtom)
477 {
478 if (event->error_code == BadValue)
479 XGetErrorDatabaseText (dpy, "XlibMessage", "Value", "Value 0x%x", mesg, BUFSIZ);
480 else if (event->error_code == BadAtom)
481 XGetErrorDatabaseText (dpy, "XlibMessage", "AtomID", "AtomID 0x%x", mesg, BUFSIZ);
482 else
483 XGetErrorDatabaseText (dpy, "XlibMessage", "ResourceID", "ResourceID 0x%x", mesg, BUFSIZ);
484
485 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->resourceid);
486 }
487 }
488 #endif
489
490 int ecb_cold
491 rxvt_xerror_handler (Display *display, XErrorEvent *event)
492 {
493 if (GET_R && GET_R->allowedxerror == -1)
494 GET_R->allowedxerror = event->error_code;
495 else
496 {
497 // GET_R is most likely not the terminal which caused the error,
498 // so just output the error and continue
499 #if ENABLE_MINIMAL
500 old_xerror_handler (display, event);
501 #else
502 print_x_error (display, event);
503 #endif
504 }
505
506 return 0;
507 }
508
509 int ecb_cold
510 rxvt_xioerror_handler (Display *display)
511 {
512 rxvt_warn ("X connection to '%s' broken, unable to recover, exiting.\n",
513 DisplayString (display));
514 rxvt_emergency_cleanup ();
515 _exit (EXIT_FAILURE);
516 }
517
518 static struct sig_handlers
519 {
520 ev::sig sw_term, sw_int;
521
522 /*
523 * Catch a fatal signal and tidy up before quitting
524 */
525 void sig_term (ev::sig &w, int revents);
526
527 sig_handlers ()
528 {
529 sw_term.set<sig_handlers, &sig_handlers::sig_term> (this);
530 sw_int .set<sig_handlers, &sig_handlers::sig_term> (this);
531 }
532 } sig_handlers;
533
534 void
535 sig_handlers::sig_term (ev::sig &w, int revents)
536 {
537 rxvt_emergency_cleanup ();
538 w.stop ();
539 kill (getpid (), w.signum);
540 }
541
542 static void
543 rxvt_get_ttymode (struct termios *tio)
544 {
545 if (tcgetattr (STDIN_FILENO, tio) < 0)
546 memset (tio, 0, sizeof (struct termios));
547
548 for (int i = 0; i < NCCS; i++)
549 tio->c_cc[i] = VDISABLE;
550
551 tio->c_cc[VINTR] = CINTR;
552 tio->c_cc[VQUIT] = CQUIT;
553 tio->c_cc[VERASE] = CERASE;
554 #ifdef VERASE2
555 tio->c_cc[VERASE2] = CERASE2;
556 #endif
557 tio->c_cc[VKILL] = CKILL;
558 tio->c_cc[VEOF] = CEOF;
559 tio->c_cc[VSTART] = CSTART;
560 tio->c_cc[VSTOP] = CSTOP;
561 tio->c_cc[VSUSP] = CSUSP;
562 # ifdef VDSUSP
563 tio->c_cc[VDSUSP] = CDSUSP;
564 # endif
565 # ifdef VREPRINT
566 tio->c_cc[VREPRINT] = CRPRNT;
567 # endif
568 # ifdef VDISCRD
569 tio->c_cc[VDISCRD] = CFLUSH;
570 # endif
571 # ifdef VWERSE
572 tio->c_cc[VWERSE] = CWERASE;
573 # endif
574 # ifdef VLNEXT
575 tio->c_cc[VLNEXT] = CLNEXT;
576 # endif
577 # ifdef VSTATUS
578 tio->c_cc[VSTATUS] = CSTATUS;
579 # endif
580
581 # if VMIN != VEOF
582 tio->c_cc[VMIN] = 1;
583 # endif
584 # if VTIME != VEOL
585 tio->c_cc[VTIME] = 0;
586 # endif
587
588 /* input modes */
589 tio->c_iflag = (BRKINT | IGNPAR | ICRNL
590 # ifdef IMAXBEL
591 | IMAXBEL
592 # endif
593 | IXON);
594
595 /* output modes */
596 tio->c_oflag = (OPOST | ONLCR);
597
598 /* control modes */
599 tio->c_cflag = (CS8 | CREAD);
600
601 /* local modes */
602 tio->c_lflag = (ISIG | ICANON | IEXTEN | ECHO
603 # if defined (ECHOCTL) && defined (ECHOKE)
604 | ECHOCTL | ECHOKE
605 # endif
606 | ECHOE | ECHOK);
607 }
608
609 char **rxvt_environ; // startup environment
610
611 void
612 rxvt_init ()
613 {
614 assert (("fontMask must not overlap other RS masks",
615 0 == (RS_fontMask & (RS_Sel | RS_baseattrMask | RS_customMask | RS_bgMask | RS_fgMask))));
616
617 rxvt_get_ttymode (&rxvt_term::def_tio);
618
619 // get rid of stdin/stdout as we don't need them, to free resources
620 dup2 (STDERR_FILENO, STDIN_FILENO);
621 dup2 (STDERR_FILENO, STDOUT_FILENO);
622
623 if (!ev_default_loop ())
624 rxvt_fatal ("cannot initialise libev (bad value for LIBEV_METHODS?)\n");
625
626 rxvt_environ = environ;
627
628 signal (SIGHUP, SIG_IGN);
629 signal (SIGPIPE, SIG_IGN);
630
631 sig_handlers.sw_term.start (SIGTERM); ev_unref ();
632 sig_handlers.sw_int.start (SIGINT); ev_unref ();
633
634 old_xerror_handler = XSetErrorHandler ((XErrorHandler) rxvt_xerror_handler);
635 // TODO: handle this with exceptions and tolerate the memory loss
636 XSetIOErrorHandler (rxvt_xioerror_handler);
637
638 XrmInitialize ();
639
640 #if HAVE_PIXBUF
641 g_type_init ();
642 #endif
643 }
644
645 /*----------------------------------------------------------------------*/
646 /*
647 * window size/position calculations for XSizeHint and other storage.
648 * if width/height are non-zero then override calculated width/height
649 */
650 void
651 rxvt_term::window_calc (unsigned int newwidth, unsigned int newheight)
652 {
653 short recalc_x, recalc_y;
654 int x, y, flags;
655 unsigned int w, h;
656 unsigned int max_width, max_height;
657
658 szHint.flags = PMinSize | PResizeInc | PBaseSize | PWinGravity;
659 szHint.win_gravity = NorthWestGravity;
660 /* szHint.min_aspect.x = szHint.min_aspect.y = 1; */
661
662 recalc_x = recalc_y = 0;
663 flags = 0;
664
665 if (!parsed_geometry)
666 {
667 parsed_geometry = 1;
668
669 if (rs[Rs_geometry])
670 flags = XParseGeometry (rs[Rs_geometry], &x, &y, &w, &h);
671
672 if (flags & WidthValue)
673 {
674 if (!w)
675 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
676
677 ncol = clamp (w, 1, std::numeric_limits<int16_t>::max ());
678 szHint.flags |= USSize;
679 }
680
681 if (flags & HeightValue)
682 {
683 if (!h)
684 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
685
686 nrow = clamp (h, 1, std::numeric_limits<int16_t>::max ());
687 szHint.flags |= USSize;
688 }
689
690 if (flags & XValue)
691 {
692 szHint.x = x;
693 szHint.flags |= USPosition;
694
695 if (flags & XNegative)
696 {
697 recalc_x = 1;
698 szHint.win_gravity = NorthEastGravity;
699 }
700 }
701
702 if (flags & YValue)
703 {
704 szHint.y = y;
705 szHint.flags |= USPosition;
706
707 if (flags & YNegative)
708 {
709 recalc_y = 1;
710
711 if (szHint.win_gravity == NorthEastGravity)
712 szHint.win_gravity = SouthEastGravity;
713 else
714 szHint.win_gravity = SouthWestGravity;
715 }
716 }
717 }
718
719 /* TODO: BOUNDS */
720 width = ncol * fwidth;
721 height = nrow * fheight;
722 max_width = MAX_COLS * fwidth;
723 max_height = MAX_ROWS * fheight;
724
725 szHint.base_width = szHint.base_height = 2 * int_bwidth;
726
727 window_vt_x = window_vt_y = int_bwidth;
728
729 if (scrollBar.state)
730 {
731 int sb_w = scrollBar.total_width ();
732 szHint.base_width += sb_w;
733
734 if (!option (Opt_scrollBar_right))
735 window_vt_x += sb_w;
736 }
737
738 szHint.width_inc = fwidth;
739 szHint.height_inc = fheight;
740 szHint.min_width = szHint.base_width + szHint.width_inc;
741 szHint.min_height = szHint.base_height + szHint.height_inc;
742
743 if (newwidth && newwidth - szHint.base_width < max_width)
744 {
745 szHint.width = newwidth;
746 width = newwidth - szHint.base_width;
747 }
748 else
749 {
750 min_it (width, max_width);
751 szHint.width = szHint.base_width + width;
752 }
753
754 if (newheight && newheight - szHint.base_height < max_height)
755 {
756 szHint.height = newheight;
757 height = newheight - szHint.base_height;
758 }
759 else
760 {
761 min_it (height, max_height);
762 szHint.height = szHint.base_height + height;
763 }
764
765 if (recalc_x)
766 szHint.x += DisplayWidth (dpy, display->screen) - szHint.width - 2 * ext_bwidth;
767
768 if (recalc_y)
769 szHint.y += DisplayHeight (dpy, display->screen) - szHint.height - 2 * ext_bwidth;
770
771 ncol = width / fwidth;
772 nrow = height / fheight;
773
774 // When the size of the vt window is not a multiple of the cell
775 // size, i.e., when the wm does not honour our size hints, there are
776 // extra areas not covered by the terminal screen. Such gaps, when a
777 // bg pixmap is set, would have to be cleared manually to properly
778 // refresh the background. We take the simpler route and shrink the
779 // vt window so as to avoid creating gaps.
780 vt_width = ncol * fwidth;
781 vt_height = nrow * fheight;
782 }
783
784 /*----------------------------------------------------------------------*/
785 /*
786 * Tell the teletype handler what size the window is.
787 * Called after a window size change.
788 */
789 void
790 rxvt_term::tt_winch ()
791 {
792 if (pty->pty < 0)
793 return;
794
795 struct winsize ws;
796
797 ws.ws_col = ncol;
798 ws.ws_row = nrow;
799 ws.ws_xpixel = vt_width;
800 ws.ws_ypixel = vt_height;
801 ioctl (pty->pty, TIOCSWINSZ, &ws);
802
803 #if 0
804 // TIOCSWINSZ is supposed to do this automatically and correctly
805 if (cmd_pid) /* force through to the command */
806 kill (-cmd_pid, SIGWINCH);
807 #endif
808 }
809
810 /*----------------------------------------------------------------------*/
811 /* load and set the various fonts */
812 bool
813 rxvt_term::set_fonts ()
814 {
815 rxvt_fontset *fs = new rxvt_fontset (this);
816 rxvt_fontprop prop;
817
818 if (!fs
819 || !fs->populate (rs[Rs_font] ? rs[Rs_font] : "fixed")
820 || !fs->realize_font (1))
821 {
822 delete fs;
823 return false;
824 }
825
826 #if ENABLE_STYLES
827 for (int i = RS_styleCount; --i; )
828 if (fontset[i] != fontset[0])
829 delete fontset[i];
830 #endif
831
832 delete fontset[0];
833 fontset[0] = fs;
834
835 prop = (*fs)[rxvt_fontset::firstFont]->properties ();
836 prop.width = max (prop.width + letterSpace, 1);
837
838 fs->set_prop (prop, false);
839
840 fwidth = prop.width;
841 fheight = prop.height + lineSpace;
842 fbase = prop.ascent;
843
844 for (int style = 1; style < 4; style++)
845 {
846 #if ENABLE_STYLES
847 const char *res = rs[Rs_font + style];
848
849 if (res && !*res)
850 fontset[style] = fontset[0];
851 else
852 {
853 fontset[style] = fs = new rxvt_fontset (this);
854 rxvt_fontprop prop2 = prop;
855
856 if (res)
857 {
858 fs->populate (res);
859 fs->set_prop (prop2, false);
860 }
861 else
862 {
863 fs->populate (fontset[0]->fontdesc);
864
865 if (SET_STYLE (0, style) & RS_Bold) prop2.weight = rxvt_fontprop::bold;
866 if (SET_STYLE (0, style) & RS_Italic) prop2.slant = rxvt_fontprop::italic;
867
868 fs->set_prop (prop2, true);
869 }
870
871 }
872 #else
873 fontset[style] = fontset[0];
874 #endif
875 }
876
877 if (parent)
878 {
879 resize_all_windows (0, 0, 0);
880 scr_remap_chars ();
881 scr_touch (true);
882 }
883
884 return true;
885 }
886
887 void
888 rxvt_term::set_string_property (Atom prop, const char *str, int len)
889 {
890 XChangeProperty (dpy, parent,
891 prop, XA_STRING, 8, PropModeReplace,
892 (const unsigned char *)str, len >= 0 ? len : strlen (str));
893 }
894
895 void
896 rxvt_term::set_mbstring_property (Atom prop, const char *str, int len)
897 {
898 XTextProperty ct;
899
900 if (XmbTextListToTextProperty (dpy, (char **)&str, 1, XStdICCTextStyle, &ct) >= 0)
901 {
902 XSetTextProperty (dpy, parent, &ct, prop);
903 XFree (ct.value);
904 }
905 }
906
907 void
908 rxvt_term::set_utf8_property (Atom prop, const char *str, int len)
909 {
910 wchar_t *ws = rxvt_mbstowcs (str, len);
911 char *s = rxvt_wcstoutf8 (ws);
912
913 XChangeProperty (dpy, parent,
914 prop, xa[XA_UTF8_STRING], 8, PropModeReplace,
915 (const unsigned char *)s, strlen (s));
916
917 free (s);
918 free (ws);
919 }
920
921 /*----------------------------------------------------------------------*/
922 /*----------------------------------------------------------------------*/
923 /* xterm sequences - title, iconName, color (exptl) */
924 void
925 rxvt_term::set_title (const char *str)
926 {
927 set_mbstring_property (XA_WM_NAME, str);
928 #if ENABLE_EWMH
929 set_utf8_property (xa[XA_NET_WM_NAME], str);
930 #endif
931 }
932
933 void
934 rxvt_term::set_icon_name (const char *str)
935 {
936 set_mbstring_property (XA_WM_ICON_NAME, str);
937 #if ENABLE_EWMH
938 set_utf8_property (xa[XA_NET_WM_ICON_NAME], str);
939 #endif
940 }
941
942 void
943 rxvt_term::set_window_color (int idx, const char *color)
944 {
945 #ifdef XTERM_COLOR_CHANGE
946 rxvt_color xcol;
947
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 pix_colors_focused[idx] = pix_colors_focused[minBrightCOLOR + i - 8];
964 goto done;
965 }
966
967 if (i >= 0 && i <= 7)
968 {
969 /* normal colors */
970 pix_colors_focused[idx] = pix_colors_focused[minCOLOR + i];
971 goto done;
972 }
973 }
974
975 set_color (xcol, color);
976
977 /*
978 * FIXME: should free colors here, but no idea how to do it so instead,
979 * so just keep gobbling up the colormap
980 */
981
982 pix_colors_focused[idx] = xcol;
983
984 done:
985 /*TODO: handle Color_BD, scrollbar background, etc. */
986
987 update_fade_color (idx);
988 recolour_cursor ();
989 scr_recolour ();
990 #endif /* XTERM_COLOR_CHANGE */
991 }
992
993 void
994 rxvt_term::recolour_cursor ()
995 {
996 XColor fg, bg;
997
998 (ISSET_PIXCOLOR (Color_pointer_fg)
999 ? pix_colors_focused[Color_pointer_fg]
1000 : pix_colors_focused[Color_fg]).get (fg);
1001
1002 (ISSET_PIXCOLOR (Color_pointer_bg)
1003 ? pix_colors_focused[Color_pointer_bg]
1004 : pix_colors_focused[Color_bg]).get (bg);
1005
1006 XRecolorCursor (dpy, TermWin_cursor, &fg, &bg);
1007 }
1008
1009 /*----------------------------------------------------------------------*/
1010 /*
1011 * find if fg/bg matches any of the normal (low-intensity) colors
1012 */
1013 char *
1014 rxvt_term::get_colorfgbg ()
1015 {
1016 unsigned int i;
1017 const char *xpmb = "";
1018 char fstr[] = "default";
1019 char bstr[] = "default";
1020 char *env_colorfgbg;
1021
1022 for (i = Color_Black; i <= Color_White; i++)
1023 if (pix_colors[Color_fg] == pix_colors[i])
1024 {
1025 sprintf (fstr, "%d", i - Color_Black);
1026 break;
1027 }
1028
1029 for (i = Color_Black; i <= Color_White; i++)
1030 if (pix_colors[Color_bg] == pix_colors[i])
1031 {
1032 sprintf (bstr, "%d", i - Color_Black);
1033 #if BG_IMAGE_FROM_FILE
1034 xpmb = "default;";
1035 #endif
1036 break;
1037 }
1038
1039 env_colorfgbg = (char *)rxvt_malloc (sizeof ("COLORFGBG=default;default;bg"));
1040 sprintf (env_colorfgbg, "COLORFGBG=%s;%s%s", fstr, xpmb, bstr);
1041 return env_colorfgbg;
1042 }
1043
1044 /*----------------------------------------------------------------------*/
1045
1046 bool
1047 rxvt_term::set_color (rxvt_color &color, const char *name)
1048 {
1049 if (color.set (this, name))
1050 return true;
1051
1052 rxvt_warn ("can't get colour '%s', continuing without.\n", name);
1053 return false;
1054 }
1055
1056 void
1057 rxvt_term::alias_color (int dst, int src)
1058 {
1059 pix_colors[dst].set (this, rs[Rs_color + dst] = rs[Rs_color + src]);
1060 }
1061
1062 /* -------------------------------------------------------------------- *
1063 * - WINDOW RESIZING - *
1064 * -------------------------------------------------------------------- */
1065 void
1066 rxvt_term::resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent)
1067 {
1068 int fix_screen;
1069 int old_width = szHint.width;
1070 int old_height = szHint.height;
1071
1072 window_calc (newwidth, newheight);
1073
1074 bool set_hint = !HOOK_INVOKE ((this, HOOK_RESIZE_ALL_WINDOWS, DT_INT, newwidth, DT_INT, newheight, DT_END));
1075
1076 // to avoid races between us and the wm, we clear the incremental size hints around the xresizewindow
1077 if (set_hint)
1078 {
1079 szHint.flags &= ~(PBaseSize | PResizeInc);
1080 XSetWMNormalHints (dpy, parent, &szHint);
1081 szHint.flags |= PBaseSize | PResizeInc;
1082 }
1083
1084 if (!ignoreparent)
1085 {
1086 #ifdef SMART_RESIZE
1087 /*
1088 * resize by Marius Gedminas <marius.gedminas@uosis.mif.vu.lt>
1089 * reposition window on resize depending on placement on screen
1090 */
1091 int x, y, x1, y1;
1092 int dx, dy;
1093 unsigned int unused_w1, unused_h1, unused_b1, unused_d1;
1094 Window unused_cr;
1095
1096 XTranslateCoordinates (dpy, parent, display->root,
1097 0, 0, &x, &y, &unused_cr);
1098 XGetGeometry (dpy, parent, &unused_cr, &x1, &y1,
1099 &unused_w1, &unused_h1, &unused_b1, &unused_d1);
1100 /*
1101 * if display->root isn't the parent window, a WM will probably have offset
1102 * our position for handles and decorations. Counter it
1103 */
1104 if (x1 != x || y1 != y)
1105 {
1106 x -= x1;
1107 y -= y1;
1108 }
1109
1110 x1 = (DisplayWidth (dpy, display->screen) - old_width ) / 2;
1111 y1 = (DisplayHeight (dpy, display->screen) - old_height) / 2;
1112 dx = old_width - szHint.width;
1113 dy = old_height - szHint.height;
1114
1115 /* Check position of the center of the window */
1116 if (x < x1) /* left half */
1117 dx = 0;
1118 else if (x == x1) /* exact center */
1119 dx /= 2;
1120 if (y < y1) /* top half */
1121 dy = 0;
1122 else if (y == y1) /* exact center */
1123 dy /= 2;
1124
1125 XMoveResizeWindow (dpy, parent, x + dx, y + dy,
1126 szHint.width, szHint.height);
1127 #else
1128 XResizeWindow (dpy, parent, szHint.width, szHint.height);
1129 #endif
1130 }
1131
1132 if (set_hint)
1133 XSetWMNormalHints (dpy, parent, &szHint);
1134
1135 fix_screen = ncol != prev_ncol || nrow != prev_nrow;
1136
1137 if (fix_screen || newwidth != old_width || newheight != old_height)
1138 {
1139 if (scrollBar.state)
1140 scrollBar.resize ();
1141
1142 XMoveResizeWindow (dpy, vt,
1143 window_vt_x, window_vt_y,
1144 vt_width, vt_height);
1145
1146 HOOK_INVOKE ((this, HOOK_SIZE_CHANGE, DT_INT, newwidth, DT_INT, newheight, DT_END));
1147
1148 #ifdef HAVE_BG_PIXMAP
1149 if (bg_window_size_sensitive ())
1150 update_background ();
1151 #endif
1152 }
1153
1154 if (fix_screen || old_height == 0)
1155 scr_reset ();
1156
1157 #if USE_XIM
1158 im_set_position ();
1159 #endif
1160 }
1161
1162 /*
1163 * Set the width/height of the vt window in characters. Units are pixels.
1164 * good for toggling 80/132 columns
1165 */
1166 void
1167 rxvt_term::set_widthheight (unsigned int newwidth, unsigned int newheight)
1168 {
1169 XWindowAttributes wattr;
1170
1171 if (newwidth == 0 || newheight == 0)
1172 {
1173 XGetWindowAttributes (dpy, display->root, &wattr);
1174
1175 if (newwidth == 0)
1176 newwidth = wattr.width - szHint.base_width;
1177 if (newheight == 0)
1178 newheight = wattr.height - szHint.base_height;
1179 }
1180
1181 if (newwidth != vt_width || newheight != vt_height)
1182 {
1183 newwidth += szHint.base_width;
1184 newheight += szHint.base_height;
1185 resize_all_windows (newwidth, newheight, 0);
1186 }
1187 }
1188
1189 /* -------------------------------------------------------------------- *
1190 * - X INPUT METHOD ROUTINES - *
1191 * -------------------------------------------------------------------- */
1192 #if USE_XIM
1193
1194 void
1195 rxvt_term::im_set_color (unsigned long &fg, unsigned long &bg)
1196 {
1197 fg = pix_colors [Color_fg];
1198 bg = pix_colors [Color_bg];
1199 }
1200
1201 void
1202 rxvt_term::im_set_size (XRectangle &size)
1203 {
1204 // the int_bwidth terms make no sense to me
1205 size.x = int_bwidth;
1206 size.y = int_bwidth;
1207 size.width = Width2Pixel (ncol) + int_bwidth;
1208 size.height = Height2Pixel (nrow) + int_bwidth;
1209 }
1210
1211 void
1212 rxvt_term::im_set_preedit_area (XRectangle &preedit_rect,
1213 XRectangle &status_rect,
1214 const XRectangle &needed_rect)
1215 {
1216 preedit_rect.x = needed_rect.width;
1217 preedit_rect.y = 0;
1218 preedit_rect.width = Width2Pixel (ncol) - needed_rect.width + 1;
1219 preedit_rect.height = fheight;
1220
1221 status_rect.x = 0;
1222 status_rect.y = 0;
1223 status_rect.width = needed_rect.width ? needed_rect.width : Width2Pixel (ncol) + 1;
1224 status_rect.height = fheight;
1225 }
1226
1227 /* Checking whether input method is running. */
1228 bool
1229 rxvt_term::im_is_running ()
1230 {
1231 Atom atom;
1232 Window win;
1233 char server[IMBUFSIZ];
1234
1235 /* get current locale modifier */
1236 if (char *p = XSetLocaleModifiers (0))
1237 {
1238 strcpy (server, "@server=");
1239 strncat (server, p + 4, IMBUFSIZ - 9); /* skip "@im=" */
1240
1241 if (p = strchr (server + 1, '@')) /* first one only */
1242 *p = '\0';
1243
1244 atom = XInternAtom (dpy, server, False);
1245 win = XGetSelectionOwner (dpy, atom);
1246
1247 if (win != None)
1248 return true;
1249 }
1250
1251 return false;
1252 }
1253
1254 void
1255 rxvt_term::im_send_spot ()
1256 {
1257 XPoint nspot;
1258 XVaNestedList preedit_attr;
1259
1260 if (!Input_Context
1261 || !focus
1262 || !(input_style & (XIMPreeditPosition | XIMPreeditCallbacks)))
1263 return;
1264
1265 im_set_position (nspot);
1266
1267 if (nspot.x == spot.x && nspot.y == spot.y)
1268 return;
1269
1270 spot = nspot;
1271
1272 preedit_attr = XVaCreateNestedList (0, XNSpotLocation, &spot, NULL);
1273 XSetICValues (Input_Context, XNPreeditAttributes, preedit_attr, NULL);
1274 XFree (preedit_attr);
1275 }
1276
1277 void
1278 rxvt_term::im_destroy ()
1279 {
1280 if (input_method)
1281 {
1282 if (Input_Context && input_method->xim)
1283 XDestroyIC (Input_Context);
1284
1285 display->put_xim (input_method);
1286 input_method = 0;
1287 }
1288
1289 Input_Context = 0;
1290 }
1291
1292 #ifdef ENABLE_XIM_ONTHESPOT
1293
1294 static void
1295 xim_preedit_start (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_START, DT_END));
1299 }
1300
1301 static void
1302 xim_preedit_done (XIC ic, XPointer client_data, XPointer call_data)
1303 {
1304 ((rxvt_term *)client_data)->make_current ();
1305 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_DONE, DT_END));
1306 }
1307
1308 static void
1309 xim_preedit_draw (XIC ic, XPointer client_data, XIMPreeditDrawCallbackStruct *call_data)
1310 {
1311 rxvt_term *term = (rxvt_term *)client_data;
1312 XIMText *text = call_data->text;
1313
1314 term->make_current ();
1315
1316 if (text)
1317 {
1318 wchar_t *str;
1319
1320 if (!text->encoding_is_wchar && text->string.multi_byte)
1321 {
1322 // of course, X makes it ugly again
1323 if (term->rs[Rs_imLocale])
1324 SET_LOCALE (term->rs[Rs_imLocale]);
1325
1326 str = rxvt_temp_buf<wchar_t> (text->length + 1);
1327 mbstowcs (str, text->string.multi_byte, text->length + 1);
1328
1329 if (term->rs[Rs_imLocale])
1330 SET_LOCALE (term->locale);
1331 }
1332 else
1333 str = text->string.wide_char;
1334
1335 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1336 DT_INT, call_data->caret,
1337 DT_INT, call_data->chg_first,
1338 DT_INT, call_data->chg_length,
1339 DT_LCS_LEN, (void *)text->feedback, text->feedback ? (int)text->length : 0,
1340 DT_WCS_LEN, str, str ? (int)text->length : 0,
1341 DT_END));
1342 }
1343 else
1344 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1345 DT_INT, call_data->caret,
1346 DT_INT, call_data->chg_first,
1347 DT_INT, call_data->chg_length,
1348 DT_END));
1349 }
1350
1351 #if 0
1352 static void
1353 xim_preedit_caret (XIC ic, XPointer client_data, XIMPreeditCaretCallbackStruct *call_data)
1354 {
1355 ((rxvt_term *)client_data)->make_current ();
1356 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_CARET,
1357 DT_INT, call_data->position,
1358 DT_INT, call_data->direction,
1359 DT_INT, call_data->style,
1360 DT_END));
1361 }
1362 #endif
1363
1364 #endif
1365
1366 /*
1367 * Try to open a XIM with the current modifiers, then see if we can
1368 * open a suitable preedit type
1369 */
1370 bool
1371 rxvt_term::im_get_ic (const char *modifiers)
1372 {
1373 int i, j, found;
1374 XIM xim;
1375 XPoint spot;
1376 XRectangle rect, status_rect, needed_rect;
1377 unsigned long fg, bg;
1378 const char *p;
1379 char **s;
1380 XIMStyles *xim_styles;
1381
1382 set_environ (env);
1383
1384 if (!((p = XSetLocaleModifiers (modifiers)) && *p))
1385 return false;
1386
1387 input_method = display->get_xim (locale, modifiers);
1388 if (input_method == NULL)
1389 return false;
1390
1391 xim = input_method->xim;
1392 spot.x = spot.y = -1;
1393
1394 xim_styles = NULL;
1395 if (XGetIMValues (xim, XNQueryInputStyle, &xim_styles, NULL)
1396 || !xim_styles || !xim_styles->count_styles)
1397 {
1398 im_destroy ();
1399 return false;
1400 }
1401
1402 const char *pet[] = { rs[Rs_preeditType], "OverTheSpot,OffTheSpot,Root,None" };
1403
1404 for (int pi = 0; pi < 2; pi++)
1405 {
1406 p = pet[pi];
1407
1408 if (!p)
1409 continue;
1410
1411 s = rxvt_strsplit (',', p);
1412
1413 for (i = found = 0; !found && s[i]; i++)
1414 {
1415 if (!strcmp (s[i], "OverTheSpot"))
1416 input_style = XIMPreeditPosition | XIMStatusNothing;
1417 else if (!strcmp (s[i], "OffTheSpot"))
1418 input_style = XIMPreeditArea | XIMStatusArea;
1419 else if (!strcmp (s[i], "Root"))
1420 input_style = XIMPreeditNothing | XIMStatusNothing;
1421 else if (!strcmp (s[i], "None"))
1422 input_style = XIMPreeditNone | XIMStatusNone;
1423 #ifdef ENABLE_XIM_ONTHESPOT
1424 else if (SHOULD_INVOKE (HOOK_XIM_PREEDIT_START) && !strcmp (s[i], "OnTheSpot"))
1425 input_style = XIMPreeditCallbacks | XIMStatusNothing;
1426 #endif
1427 else
1428 input_style = XIMPreeditNothing | XIMStatusNothing;
1429
1430 for (j = 0; j < xim_styles->count_styles; j++)
1431 if (input_style == xim_styles->supported_styles[j])
1432 {
1433 rxvt_free_strsplit (s);
1434
1435 found = 1;
1436 goto foundpet;
1437 }
1438
1439 }
1440
1441 rxvt_free_strsplit (s);
1442 }
1443
1444 foundpet:
1445
1446 XFree (xim_styles);
1447
1448 if (!found)
1449 {
1450 im_destroy ();
1451 return false;
1452 }
1453
1454 XFontSet fs = 0;
1455 XVaNestedList preedit_attr = 0, status_attr = 0;
1456
1457 if (input_style & (XIMPreeditPosition | XIMPreeditArea))
1458 {
1459 // fake us a font-set, please
1460 char **missing_charset_list;
1461 int missing_charset_count;
1462 char *def_string;
1463 char pat[512];
1464
1465 sprintf (pat,
1466 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1467 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1468 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1469 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1470 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1471 "*",
1472 fheight,
1473 fheight + 1, fheight - 1,
1474 fheight - 2, fheight + 2);
1475
1476 fs = XCreateFontSet (dpy, rs[Rs_imFont] ? rs[Rs_imFont] : pat,
1477 &missing_charset_list, &missing_charset_count, &def_string);
1478
1479 if (missing_charset_list)
1480 XFreeStringList (missing_charset_list);
1481
1482 if (!fs)
1483 {
1484 input_style &= ~(XIMPreeditPosition | XIMPreeditArea);
1485 rxvt_warn ("unable to create fontset for input method, try \"-pt Root\". Continuing.\n");
1486 }
1487 }
1488
1489 if (input_style & XIMPreeditPosition)
1490 {
1491 im_set_size (rect);
1492 im_set_position (spot);
1493 im_set_color (fg, bg);
1494
1495 preedit_attr = XVaCreateNestedList (0,
1496 XNForeground, fg,
1497 XNBackground, bg,
1498 XNArea, &rect,
1499 XNSpotLocation, &spot,
1500 XNFontSet, fs,
1501 NULL);
1502 }
1503 else if (input_style & XIMPreeditArea)
1504 {
1505 im_set_color (fg, bg);
1506
1507 /*
1508 * The necessary width of preedit area is unknown
1509 * until create input context.
1510 */
1511 needed_rect.width = 0;
1512 im_set_preedit_area (rect, status_rect, needed_rect);
1513
1514 preedit_attr = XVaCreateNestedList (0,
1515 XNForeground, fg,
1516 XNBackground, bg,
1517 XNArea, &rect,
1518 XNFontSet, fs,
1519 NULL);
1520 status_attr = XVaCreateNestedList (0,
1521 XNForeground, fg,
1522 XNBackground, bg,
1523 XNArea, &status_rect,
1524 XNFontSet, fs,
1525 NULL);
1526 }
1527 #if ENABLE_XIM_ONTHESPOT
1528 else if (input_style & XIMPreeditCallbacks)
1529 {
1530 XIMCallback xcb[4];
1531
1532 im_set_position (spot);
1533
1534 xcb[0].client_data = (XPointer)this; xcb[0].callback = (XIMProc)xim_preedit_start;
1535 xcb[1].client_data = (XPointer)this; xcb[1].callback = (XIMProc)xim_preedit_done;
1536 xcb[2].client_data = (XPointer)this; xcb[2].callback = (XIMProc)xim_preedit_draw;
1537 # if 0
1538 xcb[3].client_data = (XPointer)this; xcb[3].callback = (XIMProc)xim_preedit_caret;
1539 # endif
1540
1541 preedit_attr = XVaCreateNestedList (0,
1542 XNSpotLocation, &spot,
1543 XNPreeditStartCallback, &xcb[0],
1544 XNPreeditDoneCallback , &xcb[1],
1545 XNPreeditDrawCallback , &xcb[2],
1546 # if 0
1547 XNPreeditCaretCallback, &xcb[3],
1548 # endif
1549 NULL);
1550 }
1551 #endif
1552
1553 Input_Context = XCreateIC (xim,
1554 XNInputStyle, input_style,
1555 XNClientWindow, vt,
1556 XNFocusWindow, parent,
1557 preedit_attr ? XNPreeditAttributes : NULL,
1558 preedit_attr,
1559 status_attr ? XNStatusAttributes : NULL,
1560 status_attr, NULL);
1561
1562 if (preedit_attr) XFree (preedit_attr);
1563 if (status_attr) XFree (status_attr);
1564 if (fs) XFreeFontSet (dpy, fs);
1565
1566 if (Input_Context == NULL)
1567 {
1568 rxvt_warn ("failed to create input context, continuing without XIM.\n");
1569 im_destroy ();
1570 return false;
1571 }
1572
1573 #if 0
1574 // unfortunately, only the focus window is used by XIM, hard to fix
1575 if (!XGetICValues (Input_Context, XNFilterEvents, &vt_emask_xim, NULL))
1576 vt_select_input ();
1577 #endif
1578
1579 im_set_position ();
1580
1581 return true;
1582 }
1583
1584 void
1585 rxvt_term::im_cb ()
1586 {
1587 int i;
1588 const char *p;
1589 char **s;
1590 char buf[IMBUFSIZ];
1591
1592 make_current ();
1593
1594 im_destroy ();
1595
1596 if (Input_Context)
1597 return;
1598
1599 if (rs[Rs_imLocale])
1600 SET_LOCALE (rs[Rs_imLocale]);
1601
1602 p = rs[Rs_inputMethod];
1603 if (p && *p)
1604 {
1605 bool found = false;
1606
1607 s = rxvt_strsplit (',', p);
1608
1609 for (i = 0; s[i]; i++)
1610 {
1611 if (*s[i])
1612 {
1613 strcpy (buf, "@im=");
1614 strncat (buf, s[i], IMBUFSIZ - 5);
1615 if (im_get_ic (buf))
1616 {
1617 found = true;
1618 break;
1619 }
1620 }
1621 }
1622
1623 rxvt_free_strsplit (s);
1624
1625 if (found)
1626 goto done;
1627 }
1628
1629 /* try with XMODIFIERS env. var. */
1630 if (im_get_ic (""))
1631 goto done;
1632
1633 /* try with no modifiers base IF the user didn't specify an IM */
1634 if (im_get_ic ("@im=none"))
1635 goto done;
1636
1637 done:
1638 if (rs[Rs_imLocale])
1639 SET_LOCALE (locale);
1640 }
1641
1642 void
1643 rxvt_term::im_set_position ()
1644 {
1645 XRectangle preedit_rect, status_rect, *needed_rect;
1646 XVaNestedList preedit_attr, status_attr;
1647
1648 if (!Input_Context
1649 || !focus
1650 || !(input_style & (XIMPreeditArea | XIMPreeditPosition))
1651 || !im_is_running ())
1652 return;
1653
1654 if (input_style & XIMPreeditPosition)
1655 {
1656 im_set_size (preedit_rect);
1657 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1658
1659 XSetICValues (Input_Context,
1660 XNPreeditAttributes, preedit_attr, NULL);
1661 }
1662 else
1663 {
1664 /* Getting the necessary width of preedit area */
1665 status_attr = XVaCreateNestedList (0, XNAreaNeeded, &needed_rect, NULL);
1666 XGetICValues (Input_Context, XNStatusAttributes, status_attr, NULL);
1667 XFree (status_attr);
1668
1669 im_set_preedit_area (preedit_rect, status_rect, *needed_rect);
1670 XFree (needed_rect);
1671
1672 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1673 status_attr = XVaCreateNestedList (0, XNArea, &status_rect, NULL);
1674
1675 XSetICValues (Input_Context,
1676 XNPreeditAttributes, preedit_attr,
1677 XNStatusAttributes, status_attr,
1678 NULL);
1679
1680 XFree (status_attr);
1681 }
1682
1683 XFree (preedit_attr);
1684 }
1685 #endif /* USE_XIM */
1686
1687 void
1688 rxvt_term::get_window_origin (int &x, int &y)
1689 {
1690 Window cr;
1691 XTranslateCoordinates (dpy, parent, display->root, 0, 0, &x, &y, &cr);
1692 }
1693
1694 #ifdef HAVE_BG_PIXMAP
1695
1696 void
1697 rxvt_term::update_background ()
1698 {
1699 if (update_background_ev.is_active ())
1700 return;
1701
1702 ev_tstamp to_wait = 0.5 - (ev::now () - bg_valid_since);
1703
1704 if (to_wait <= 0.)
1705 bg_render ();
1706 else
1707 update_background_ev.start (to_wait);
1708 }
1709
1710 void
1711 rxvt_term::update_background_cb (ev::timer &w, int revents)
1712 {
1713 make_current ();
1714
1715 update_background_ev.stop ();
1716 bg_render ();
1717 refresh_check ();
1718 }
1719
1720 #endif /* HAVE_BG_PIXMAP */
1721
1722 /*----------------------- end-of-file (C source) -----------------------*/