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Revision: 1.381
Committed: Tue Jun 5 12:04:33 2012 UTC (11 years, 11 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.380: +50 -6 lines
Log Message:
*hate*

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) 2003-2010 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 2 of the License, or
21 * (at your option) any later version.
22 *
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 *---------------------------------------------------------------------*/
32
33 #include "../config.h" /* NECESSARY */
34 #include "rxvt.h" /* NECESSARY */
35 #include "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 ENABLE_TRANSPARENCY || 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 (display)
232 {
233 selection_clear ();
234 selection_clear (true);
235
236 #if USE_XIM
237 im_destroy ();
238 #endif
239 scrollBar.destroy ();
240 if (gc) XFreeGC (dpy, gc);
241
242 delete drawable;
243 // destroy all windows
244 if (parent)
245 XDestroyWindow (dpy, parent);
246
247 for (int i = 0; i < TOTAL_COLORS; i++)
248 if (ISSET_PIXCOLOR (i))
249 {
250 pix_colors_focused [i].free (this);
251 #if OFF_FOCUS_FADING
252 pix_colors_unfocused [i].free (this);
253 #endif
254 }
255
256 clear ();
257
258 display->flush (); /* ideally .put should do this */
259 displays.put (display);
260 }
261
262 scr_release ();
263
264 /* clear all resources */
265 for (int i = 0; i < allocated.size (); i++)
266 free (allocated [i]);
267
268 free (selection.text);
269 free (selection.clip_text);
270 free (locale);
271 free (v_buffer);
272
273 delete selection_req;
274
275 delete envv;
276 delete argv;
277
278 #ifdef KEYSYM_RESOURCE
279 delete keyboard;
280 #endif
281 #ifndef NO_RESOURCES
282 XrmDestroyDatabase (option_db);
283 #endif
284 }
285
286 // child has exited, usually destroys
287 void
288 rxvt_term::child_cb (ev::child &w, int status)
289 {
290 HOOK_INVOKE ((this, HOOK_CHILD_EXIT, DT_INT, status, DT_END));
291
292 cmd_pid = 0;
293
294 if (!option (Opt_hold))
295 destroy ();
296 }
297
298 void
299 rxvt_term::destroy ()
300 {
301 if (destroy_ev.is_active ())
302 return;
303
304 HOOK_INVOKE ((this, HOOK_DESTROY, DT_END));
305
306 #if ENABLE_OVERLAY
307 scr_overlay_off ();
308 #endif
309
310 if (display)
311 {
312 #if USE_XIM
313 im_ev.stop (display);
314 #endif
315 scrollbar_ev.stop (display);
316 #if ENABLE_TRANSPARENCY || ENABLE_PERL
317 rootwin_ev.stop (display);
318 #endif
319 termwin_ev.stop (display);
320 vt_ev.stop (display);
321 }
322
323 flush_ev.stop ();
324 pty_ev.stop ();
325 #ifdef CURSOR_BLINK
326 cursor_blink_ev.stop ();
327 #endif
328 #ifdef TEXT_BLINK
329 text_blink_ev.stop ();
330 #endif
331 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
332 cont_scroll_ev.stop ();
333 #endif
334 #ifdef SELECTION_SCROLLING
335 sel_scroll_ev.stop ();
336 #endif
337 #ifdef POINTER_BLANK
338 pointer_ev.stop ();
339 #endif
340
341 destroy_ev.start ();
342 }
343
344 void
345 rxvt_term::destroy_cb (ev::idle &w, int revents)
346 {
347 make_current ();
348
349 delete this;
350 }
351
352 void
353 rxvt_term::set_option (uint8_t opt, bool set) NOTHROW
354 {
355 if (!opt)
356 return;
357
358 uint8_t mask = 1 << (opt & 7);
359 uint8_t &val = options [opt >> 3];
360
361 val = val & ~mask | (set ? mask : 0);
362 }
363
364 /*----------------------------------------------------------------------*/
365 /*
366 * Exit gracefully, clearing the utmp entry and restoring tty attributes
367 */
368 static XErrorHandler old_xerror_handler;
369
370 static void
371 rxvt_emergency_cleanup ()
372 {
373 for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++)
374 (*t)->emergency_cleanup ();
375 }
376
377 #if !ENABLE_MINIMAL
378 static void ecb_cold
379 print_x_error (Display *dpy, XErrorEvent *event)
380 {
381 char buffer[BUFSIZ];
382 char mesg[BUFSIZ];
383 char number[32];
384
385 rxvt_warn ("An X Error occurred, trying to continue after report.\n");
386
387 XGetErrorDatabaseText (dpy, "XlibMessage", "ErrorSerial", "Error Serial #%d", mesg, BUFSIZ);
388 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->serial);
389
390 XGetErrorText (dpy, event->error_code, buffer, BUFSIZ);
391 XGetErrorDatabaseText (dpy, "XlibMessage", "XError", "X Error", mesg, BUFSIZ);
392 rxvt_warn ("+ %s: %s\n", mesg, buffer);
393
394 XGetErrorDatabaseText (dpy, "XlibMessage", "MajorCode", "Request Major code %d", mesg, BUFSIZ);
395 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->request_code);
396
397 if (event->request_code >= 128)
398 {
399 #if 0
400 /* XListExtensions and probably query extensions hangs when there are multiple queues errors */
401 int nexts;
402 char **exts = XListExtensions (dpy, &nexts);
403
404 while (nexts)
405 {
406 char *extname = exts [nexts - 1];
407 int major, first_event, first_error;
408
409 if (XQueryExtension (dpy, extname, &major, &first_event, &first_error) && major == event->request_code)
410 {
411 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
412 rxvt_warn ("+ (which is extension %s minor code %d)\n", extname, event->minor_code);
413
414 snprintf (buffer, BUFSIZ, "%s.%d", extname, event->minor_code);
415 XGetErrorDatabaseText (dpy, "XRequest", buffer, "an unregistered minor code", buffer, BUFSIZ);
416 rxvt_warn ("+ (which is %s)\n", buffer);
417
418 break;
419 }
420
421 printf ("nextss %d %s\n", nexts, extname);//D
422 --nexts;
423 ++exts;
424 }
425 #else
426 int nexts = 0;
427 char **exts = 0;
428 #endif
429
430 if (!nexts)
431 {
432 rxvt_warn ("+ (which is an unknown extension)\n", buffer);
433
434 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
435 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->minor_code);
436
437 sprintf (number, "%d", event->minor_code);
438 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
439 rxvt_warn ("+ (which is %s)\n", buffer);
440 }
441
442 XFreeExtensionList (exts);
443 }
444 else
445 {
446 sprintf (number, "%d", event->request_code);
447 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
448 rxvt_warn ("+ (which is %s)\n", buffer);
449 }
450
451 if (event->error_code == BadWindow
452 || event->error_code == BadPixmap
453 || event->error_code == BadCursor
454 || event->error_code == BadFont
455 || event->error_code == BadDrawable
456 || event->error_code == BadColor
457 || event->error_code == BadGC
458 || event->error_code == BadIDChoice
459 || event->error_code == BadValue
460 || event->error_code == BadAtom)
461 {
462 if (event->error_code == BadValue)
463 XGetErrorDatabaseText (dpy, "XlibMessage", "Value", "Value 0x%x", mesg, BUFSIZ);
464 else if (event->error_code == BadAtom)
465 XGetErrorDatabaseText (dpy, "XlibMessage", "AtomID", "AtomID 0x%x", mesg, BUFSIZ);
466 else
467 XGetErrorDatabaseText (dpy, "XlibMessage", "ResourceID", "ResourceID 0x%x", mesg, BUFSIZ);
468
469 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->resourceid);
470 }
471 }
472 #endif
473
474 int ecb_cold
475 rxvt_xerror_handler (Display *display, XErrorEvent *event)
476 {
477 if (GET_R->allowedxerror == -1)
478 GET_R->allowedxerror = event->error_code;
479 else
480 {
481 // GET_R is most likely not the terminal which caused the error,
482 // so just output the error and continue
483 #if ENABLE_MINIMAL
484 old_xerror_handler (display, event);
485 #else
486 print_x_error (display, event);
487 #endif
488 }
489
490 return 0;
491 }
492
493 int ecb_cold
494 rxvt_xioerror_handler (Display *display)
495 {
496 rxvt_warn ("X connection to '%s' broken, unable to recover, exiting.\n",
497 DisplayString (display));
498 rxvt_emergency_cleanup ();
499 _exit (EXIT_FAILURE);
500 }
501
502 static struct sig_handlers
503 {
504 ev::sig sw_term, sw_int;
505
506 /*
507 * Catch a fatal signal and tidy up before quitting
508 */
509 void sig_term (ev::sig &w, int revents);
510
511 sig_handlers ()
512 {
513 sw_term.set<sig_handlers, &sig_handlers::sig_term> (this);
514 sw_int .set<sig_handlers, &sig_handlers::sig_term> (this);
515 }
516 } sig_handlers;
517
518 void
519 sig_handlers::sig_term (ev::sig &w, int revents)
520 {
521 rxvt_emergency_cleanup ();
522 w.stop ();
523 kill (getpid (), w.signum);
524 }
525
526 static void
527 rxvt_get_ttymode (struct termios *tio)
528 {
529 if (tcgetattr (STDIN_FILENO, tio) < 0)
530 memset (tio, 0, sizeof (struct termios));
531
532 for (int i = 0; i < NCCS; i++)
533 tio->c_cc[i] = VDISABLE;
534
535 tio->c_cc[VINTR] = CINTR;
536 tio->c_cc[VQUIT] = CQUIT;
537 tio->c_cc[VERASE] = CERASE;
538 #ifdef VERASE2
539 tio->c_cc[VERASE2] = CERASE2;
540 #endif
541 tio->c_cc[VKILL] = CKILL;
542 tio->c_cc[VEOF] = CEOF;
543 tio->c_cc[VSTART] = CSTART;
544 tio->c_cc[VSTOP] = CSTOP;
545 tio->c_cc[VSUSP] = CSUSP;
546 # ifdef VDSUSP
547 tio->c_cc[VDSUSP] = CDSUSP;
548 # endif
549 # ifdef VREPRINT
550 tio->c_cc[VREPRINT] = CRPRNT;
551 # endif
552 # ifdef VDISCRD
553 tio->c_cc[VDISCRD] = CFLUSH;
554 # endif
555 # ifdef VWERSE
556 tio->c_cc[VWERSE] = CWERASE;
557 # endif
558 # ifdef VLNEXT
559 tio->c_cc[VLNEXT] = CLNEXT;
560 # endif
561 # ifdef VSTATUS
562 tio->c_cc[VSTATUS] = CSTATUS;
563 # endif
564
565 # if VMIN != VEOF
566 tio->c_cc[VMIN] = 1;
567 # endif
568 # if VTIME != VEOL
569 tio->c_cc[VTIME] = 0;
570 # endif
571
572 /* input modes */
573 tio->c_iflag = (BRKINT | IGNPAR | ICRNL
574 # ifdef IMAXBEL
575 | IMAXBEL
576 # endif
577 | IXON);
578
579 /* output modes */
580 tio->c_oflag = (OPOST | ONLCR);
581
582 /* control modes */
583 tio->c_cflag = (CS8 | CREAD);
584
585 /* local modes */
586 tio->c_lflag = (ISIG | ICANON | IEXTEN | ECHO
587 # if defined (ECHOCTL) && defined (ECHOKE)
588 | ECHOCTL | ECHOKE
589 # endif
590 | ECHOE | ECHOK);
591 }
592
593 char **rxvt_environ; // startup environment
594
595 void
596 rxvt_init ()
597 {
598 assert (("fontMask must not overlap other RS masks",
599 0 == (RS_fontMask & (RS_Sel | RS_baseattrMask | RS_customMask | RS_bgMask | RS_fgMask))));
600
601 rxvt_get_ttymode (&rxvt_term::def_tio);
602
603 // get rid of stdin/stdout as we don't need them, to free resources
604 dup2 (STDERR_FILENO, STDIN_FILENO);
605 dup2 (STDERR_FILENO, STDOUT_FILENO);
606
607 if (!ev_default_loop ())
608 rxvt_fatal ("cannot initialise libev (bad value for LIBEV_METHODS?)\n");
609
610 rxvt_environ = environ;
611
612 signal (SIGHUP, SIG_IGN);
613 signal (SIGPIPE, SIG_IGN);
614
615 sig_handlers.sw_term.start (SIGTERM); ev_unref ();
616 sig_handlers.sw_int.start (SIGINT); ev_unref ();
617
618 old_xerror_handler = XSetErrorHandler ((XErrorHandler) rxvt_xerror_handler);
619 // TODO: handle this with exceptions and tolerate the memory loss
620 XSetIOErrorHandler (rxvt_xioerror_handler);
621
622 XrmInitialize ();
623
624 #if HAVE_PIXBUF
625 g_type_init ();
626 #endif
627 }
628
629 /*----------------------------------------------------------------------*/
630 /*
631 * window size/position calculations for XSizeHint and other storage.
632 * if width/height are non-zero then override calculated width/height
633 */
634 void
635 rxvt_term::window_calc (unsigned int newwidth, unsigned int newheight)
636 {
637 short recalc_x, recalc_y;
638 int x, y, flags;
639 unsigned int w, h;
640 unsigned int max_width, max_height;
641
642 szHint.flags = PMinSize | PResizeInc | PBaseSize | PWinGravity;
643 szHint.win_gravity = NorthWestGravity;
644 /* szHint.min_aspect.x = szHint.min_aspect.y = 1; */
645
646 recalc_x = recalc_y = 0;
647 flags = 0;
648
649 if (!parsed_geometry)
650 {
651 parsed_geometry = 1;
652
653 if (rs[Rs_geometry])
654 flags = XParseGeometry (rs[Rs_geometry], &x, &y, &w, &h);
655
656 if (flags & WidthValue)
657 {
658 if (!w)
659 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
660
661 ncol = clamp (w, 1, std::numeric_limits<int16_t>::max ());
662 szHint.flags |= USSize;
663 }
664
665 if (flags & HeightValue)
666 {
667 if (!h)
668 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
669
670 nrow = clamp (h, 1, std::numeric_limits<int16_t>::max ());
671 szHint.flags |= USSize;
672 }
673
674 if (flags & XValue)
675 {
676 szHint.x = x;
677 szHint.flags |= USPosition;
678
679 if (flags & XNegative)
680 {
681 recalc_x = 1;
682 szHint.win_gravity = NorthEastGravity;
683 }
684 }
685
686 if (flags & YValue)
687 {
688 szHint.y = y;
689 szHint.flags |= USPosition;
690
691 if (flags & YNegative)
692 {
693 recalc_y = 1;
694
695 if (szHint.win_gravity == NorthEastGravity)
696 szHint.win_gravity = SouthEastGravity;
697 else
698 szHint.win_gravity = SouthWestGravity;
699 }
700 }
701 }
702
703 /* TODO: BOUNDS */
704 width = ncol * fwidth;
705 height = nrow * fheight;
706 max_width = MAX_COLS * fwidth;
707 max_height = MAX_ROWS * fheight;
708
709 szHint.base_width = szHint.base_height = 2 * int_bwidth;
710
711 window_vt_x = window_vt_y = int_bwidth;
712
713 if (scrollBar.state)
714 {
715 int sb_w = scrollBar.total_width ();
716 szHint.base_width += sb_w;
717
718 if (!option (Opt_scrollBar_right))
719 window_vt_x += sb_w;
720 }
721
722 szHint.width_inc = fwidth;
723 szHint.height_inc = fheight;
724 szHint.min_width = szHint.base_width + szHint.width_inc;
725 szHint.min_height = szHint.base_height + szHint.height_inc;
726
727 if (newwidth && newwidth - szHint.base_width < max_width)
728 {
729 szHint.width = newwidth;
730 width = newwidth - szHint.base_width;
731 }
732 else
733 {
734 min_it (width, max_width);
735 szHint.width = szHint.base_width + width;
736 }
737
738 if (newheight && newheight - szHint.base_height < max_height)
739 {
740 szHint.height = newheight;
741 height = newheight - szHint.base_height;
742 }
743 else
744 {
745 min_it (height, max_height);
746 szHint.height = szHint.base_height + height;
747 }
748
749 if (recalc_x)
750 szHint.x += DisplayWidth (dpy, display->screen) - szHint.width - 2 * ext_bwidth;
751
752 if (recalc_y)
753 szHint.y += DisplayHeight (dpy, display->screen) - szHint.height - 2 * ext_bwidth;
754
755 ncol = width / fwidth;
756 nrow = height / fheight;
757
758 // When the size of the vt window is not a multiple of the cell
759 // size, i.e., when the wm does not honour our size hints, there are
760 // extra areas not covered by the terminal screen. Such gaps, when a
761 // bg pixmap is set, would have to be cleared manually to properly
762 // refresh the background. We take the simpler route and shrink the
763 // vt window so as to avoid creating gaps.
764 vt_width = ncol * fwidth;
765 vt_height = nrow * fheight;
766 }
767
768 /*----------------------------------------------------------------------*/
769 /*
770 * Tell the teletype handler what size the window is.
771 * Called after a window size change.
772 */
773 void
774 rxvt_term::tt_winch ()
775 {
776 if (pty->pty < 0)
777 return;
778
779 struct winsize ws;
780
781 ws.ws_col = ncol;
782 ws.ws_row = nrow;
783 ws.ws_xpixel = vt_width;
784 ws.ws_ypixel = vt_height;
785 ioctl (pty->pty, TIOCSWINSZ, &ws);
786
787 #if 0
788 // TIOCSWINSZ is supposed to do this automatically and correctly
789 if (cmd_pid) /* force through to the command */
790 kill (-cmd_pid, SIGWINCH);
791 #endif
792 }
793
794 /*----------------------------------------------------------------------*/
795 /* load and set the various fonts */
796 bool
797 rxvt_term::set_fonts ()
798 {
799 rxvt_fontset *fs = new rxvt_fontset (this);
800 rxvt_fontprop prop;
801
802 if (!fs
803 || !fs->populate (rs[Rs_font] ? rs[Rs_font] : "fixed")
804 || !fs->realize_font (1))
805 {
806 delete fs;
807 return false;
808 }
809
810 #if ENABLE_STYLES
811 for (int i = RS_styleCount; --i; )
812 if (fontset[i] != fontset[0])
813 delete fontset[i];
814 #endif
815
816 delete fontset[0];
817 fontset[0] = fs;
818
819 prop = (*fs)[rxvt_fontset::firstFont]->properties ();
820 prop.width += letterSpace;
821
822 fs->set_prop (prop, false);
823
824 fwidth = prop.width;
825 fheight = prop.height + lineSpace;
826 fbase = prop.ascent;
827
828 for (int style = 1; style < 4; style++)
829 {
830 #if ENABLE_STYLES
831 const char *res = rs[Rs_font + style];
832
833 if (res && !*res)
834 fontset[style] = fontset[0];
835 else
836 {
837 fontset[style] = fs = new rxvt_fontset (this);
838 rxvt_fontprop prop2 = prop;
839
840 if (res)
841 {
842 fs->populate (res);
843 fs->set_prop (prop2, false);
844 }
845 else
846 {
847 fs->populate (fontset[0]->fontdesc);
848
849 if (SET_STYLE (0, style) & RS_Bold) prop2.weight = rxvt_fontprop::bold;
850 if (SET_STYLE (0, style) & RS_Italic) prop2.slant = rxvt_fontprop::italic;
851
852 fs->set_prop (prop2, true);
853 }
854
855 }
856 #else
857 fontset[style] = fontset[0];
858 #endif
859 }
860
861 if (parent)
862 {
863 resize_all_windows (0, 0, 0);
864 scr_remap_chars ();
865 scr_touch (true);
866 }
867
868 return true;
869 }
870
871 void
872 rxvt_term::set_string_property (Atom prop, const char *str, int len)
873 {
874 XChangeProperty (dpy, parent,
875 prop, XA_STRING, 8, PropModeReplace,
876 (const unsigned char *)str, len >= 0 ? len : strlen (str));
877 }
878
879 void
880 rxvt_term::set_mbstring_property (Atom prop, const char *str, int len)
881 {
882 XTextProperty ct;
883
884 if (XmbTextListToTextProperty (dpy, (char **)&str, 1, XStdICCTextStyle, &ct) >= 0)
885 {
886 XSetTextProperty (dpy, parent, &ct, prop);
887 XFree (ct.value);
888 }
889 }
890
891 void
892 rxvt_term::set_utf8_property (Atom prop, const char *str, int len)
893 {
894 wchar_t *ws = rxvt_mbstowcs (str, len);
895 char *s = rxvt_wcstoutf8 (ws);
896
897 XChangeProperty (dpy, parent,
898 prop, xa[XA_UTF8_STRING], 8, PropModeReplace,
899 (const unsigned char *)s, strlen (s));
900
901 free (s);
902 free (ws);
903 }
904
905 /*----------------------------------------------------------------------*/
906 /*----------------------------------------------------------------------*/
907 /* xterm sequences - title, iconName, color (exptl) */
908 void
909 rxvt_term::set_title (const char *str)
910 {
911 set_mbstring_property (XA_WM_NAME, str);
912 #if ENABLE_EWMH
913 set_utf8_property (xa[XA_NET_WM_NAME], str);
914 #endif
915 }
916
917 void
918 rxvt_term::set_icon_name (const char *str)
919 {
920 set_mbstring_property (XA_WM_ICON_NAME, str);
921 #if ENABLE_EWMH
922 set_utf8_property (xa[XA_NET_WM_ICON_NAME], str);
923 #endif
924 }
925
926 void
927 rxvt_term::set_window_color (int idx, const char *color)
928 {
929 #ifdef XTERM_COLOR_CHANGE
930 rxvt_color xcol;
931
932 if (color == NULL || *color == '\0')
933 return;
934
935 color = strdup (color);
936 allocated.push_back ((void *)color);
937 rs[Rs_color + idx] = color;
938
939 /* handle color aliases */
940 if (isdigit (*color))
941 {
942 int i = atoi (color);
943
944 if (i >= 8 && i <= 15)
945 {
946 /* bright colors */
947 pix_colors_focused[idx] = pix_colors_focused[minBrightCOLOR + i - 8];
948 goto done;
949 }
950
951 if (i >= 0 && i <= 7)
952 {
953 /* normal colors */
954 pix_colors_focused[idx] = pix_colors_focused[minCOLOR + i];
955 goto done;
956 }
957 }
958
959 set_color (xcol, color);
960
961 /*
962 * FIXME: should free colors here, but no idea how to do it so instead,
963 * so just keep gobbling up the colormap
964 */
965
966 pix_colors_focused[idx] = xcol;
967
968 done:
969 /*TODO: handle Color_BD, scrollbar background, etc. */
970
971 update_fade_color (idx);
972 recolour_cursor ();
973 scr_recolour ();
974 #endif /* XTERM_COLOR_CHANGE */
975 }
976
977 void
978 rxvt_term::recolour_cursor ()
979 {
980 XColor fg, bg;
981
982 (ISSET_PIXCOLOR (Color_pointer_fg)
983 ? pix_colors_focused[Color_pointer_fg]
984 : pix_colors_focused[Color_fg]).get (fg);
985
986 (ISSET_PIXCOLOR (Color_pointer_bg)
987 ? pix_colors_focused[Color_pointer_bg]
988 : pix_colors_focused[Color_bg]).get (bg);
989
990 XRecolorCursor (dpy, TermWin_cursor, &fg, &bg);
991 }
992
993 /*----------------------------------------------------------------------*/
994 /*
995 * find if fg/bg matches any of the normal (low-intensity) colors
996 */
997 char *
998 rxvt_term::get_colorfgbg ()
999 {
1000 unsigned int i;
1001 const char *xpmb = "";
1002 char fstr[] = "default";
1003 char bstr[] = "default";
1004 char *env_colorfgbg;
1005
1006 for (i = Color_Black; i <= Color_White; i++)
1007 if (pix_colors[Color_fg] == pix_colors[i])
1008 {
1009 sprintf (fstr, "%d", i - Color_Black);
1010 break;
1011 }
1012
1013 for (i = Color_Black; i <= Color_White; i++)
1014 if (pix_colors[Color_bg] == pix_colors[i])
1015 {
1016 sprintf (bstr, "%d", i - Color_Black);
1017 #if BG_IMAGE_FROM_FILE
1018 xpmb = "default;";
1019 #endif
1020 break;
1021 }
1022
1023 env_colorfgbg = (char *)rxvt_malloc (sizeof ("COLORFGBG=default;default;bg"));
1024 sprintf (env_colorfgbg, "COLORFGBG=%s;%s%s", fstr, xpmb, bstr);
1025 return env_colorfgbg;
1026 }
1027
1028 /*----------------------------------------------------------------------*/
1029
1030 bool
1031 rxvt_term::set_color (rxvt_color &color, const char *name)
1032 {
1033 if (color.set (this, name))
1034 return true;
1035
1036 rxvt_warn ("can't get colour '%s', continuing without.\n", name);
1037 return false;
1038 }
1039
1040 void
1041 rxvt_term::alias_color (int dst, int src)
1042 {
1043 pix_colors[dst].set (this, rs[Rs_color + dst] = rs[Rs_color + src]);
1044 }
1045
1046 /* -------------------------------------------------------------------- *
1047 * - WINDOW RESIZING - *
1048 * -------------------------------------------------------------------- */
1049 void
1050 rxvt_term::resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent)
1051 {
1052 int fix_screen;
1053 int old_width = szHint.width;
1054 int old_height = szHint.height;
1055
1056 window_calc (newwidth, newheight);
1057
1058 bool set_hint = !HOOK_INVOKE ((this, HOOK_RESIZE_ALL_WINDOWS, DT_INT, newwidth, DT_INT, newheight, DT_END));
1059
1060 // to avoid races between us and the wm, we clear the incremental size hints around the xresizewindow
1061 if (set_hint)
1062 {
1063 szHint.flags &= ~(PBaseSize | PResizeInc);
1064 XSetWMNormalHints (dpy, parent, &szHint);
1065 szHint.flags |= PBaseSize | PResizeInc;
1066 }
1067
1068 if (!ignoreparent)
1069 {
1070 #ifdef SMART_RESIZE
1071 /*
1072 * resize by Marius Gedminas <marius.gedminas@uosis.mif.vu.lt>
1073 * reposition window on resize depending on placement on screen
1074 */
1075 int x, y, x1, y1;
1076 int dx, dy;
1077 unsigned int unused_w1, unused_h1, unused_b1, unused_d1;
1078 Window unused_cr;
1079
1080 XTranslateCoordinates (dpy, parent, display->root,
1081 0, 0, &x, &y, &unused_cr);
1082 XGetGeometry (dpy, parent, &unused_cr, &x1, &y1,
1083 &unused_w1, &unused_h1, &unused_b1, &unused_d1);
1084 /*
1085 * if display->root isn't the parent window, a WM will probably have offset
1086 * our position for handles and decorations. Counter it
1087 */
1088 if (x1 != x || y1 != y)
1089 {
1090 x -= x1;
1091 y -= y1;
1092 }
1093
1094 x1 = (DisplayWidth (dpy, display->screen) - old_width ) / 2;
1095 y1 = (DisplayHeight (dpy, display->screen) - old_height) / 2;
1096 dx = old_width - szHint.width;
1097 dy = old_height - szHint.height;
1098
1099 /* Check position of the center of the window */
1100 if (x < x1) /* left half */
1101 dx = 0;
1102 else if (x == x1) /* exact center */
1103 dx /= 2;
1104 if (y < y1) /* top half */
1105 dy = 0;
1106 else if (y == y1) /* exact center */
1107 dy /= 2;
1108
1109 XMoveResizeWindow (dpy, parent, x + dx, y + dy,
1110 szHint.width, szHint.height);
1111 #else
1112 XResizeWindow (dpy, parent, szHint.width, szHint.height);
1113 #endif
1114 }
1115
1116 if (set_hint)
1117 XSetWMNormalHints (dpy, parent, &szHint);
1118
1119 fix_screen = ncol != prev_ncol || nrow != prev_nrow;
1120
1121 if (fix_screen || newwidth != old_width || newheight != old_height)
1122 {
1123 if (scrollBar.state)
1124 scrollBar.resize ();
1125
1126 XMoveResizeWindow (dpy, vt,
1127 window_vt_x, window_vt_y,
1128 vt_width, vt_height);
1129
1130 HOOK_INVOKE ((this, HOOK_SIZE_CHANGE, DT_INT, newwidth, DT_INT, newheight, DT_END));
1131
1132 #ifdef HAVE_BG_PIXMAP
1133 if (bg_window_size_sensitive ())
1134 update_background ();
1135 #endif
1136 }
1137
1138 if (fix_screen || old_height == 0)
1139 scr_reset ();
1140
1141 #if USE_XIM
1142 im_set_position ();
1143 #endif
1144 }
1145
1146 /*
1147 * Set the width/height of the vt window in characters. Units are pixels.
1148 * good for toggling 80/132 columns
1149 */
1150 void
1151 rxvt_term::set_widthheight (unsigned int newwidth, unsigned int newheight)
1152 {
1153 XWindowAttributes wattr;
1154
1155 if (newwidth == 0 || newheight == 0)
1156 {
1157 XGetWindowAttributes (dpy, display->root, &wattr);
1158
1159 if (newwidth == 0)
1160 newwidth = wattr.width - szHint.base_width;
1161 if (newheight == 0)
1162 newheight = wattr.height - szHint.base_height;
1163 }
1164
1165 if (newwidth != vt_width || newheight != vt_height)
1166 {
1167 newwidth += szHint.base_width;
1168 newheight += szHint.base_height;
1169 resize_all_windows (newwidth, newheight, 0);
1170 }
1171 }
1172
1173 /* -------------------------------------------------------------------- *
1174 * - X INPUT METHOD ROUTINES - *
1175 * -------------------------------------------------------------------- */
1176 #if USE_XIM
1177
1178 void
1179 rxvt_term::im_set_color (unsigned long &fg, unsigned long &bg)
1180 {
1181 fg = pix_colors [Color_fg];
1182 bg = pix_colors [Color_bg];
1183 }
1184
1185 void
1186 rxvt_term::im_set_size (XRectangle &size)
1187 {
1188 // the int_bwidth terms make no sense to me
1189 size.x = int_bwidth;
1190 size.y = int_bwidth;
1191 size.width = Width2Pixel (ncol) + int_bwidth;
1192 size.height = Height2Pixel (nrow) + int_bwidth;
1193 }
1194
1195 void
1196 rxvt_term::im_set_preedit_area (XRectangle &preedit_rect,
1197 XRectangle &status_rect,
1198 const XRectangle &needed_rect)
1199 {
1200 preedit_rect.x = needed_rect.width;
1201 preedit_rect.y = 0;
1202 preedit_rect.width = Width2Pixel (ncol) - needed_rect.width + 1;
1203 preedit_rect.height = fheight;
1204
1205 status_rect.x = 0;
1206 status_rect.y = 0;
1207 status_rect.width = needed_rect.width ? needed_rect.width : Width2Pixel (ncol) + 1;
1208 status_rect.height = fheight;
1209 }
1210
1211 /* Checking whether input method is running. */
1212 bool
1213 rxvt_term::im_is_running ()
1214 {
1215 Atom atom;
1216 Window win;
1217 char server[IMBUFSIZ];
1218
1219 /* get current locale modifier */
1220 if (char *p = XSetLocaleModifiers (0))
1221 {
1222 strcpy (server, "@server=");
1223 strncat (server, p + 4, IMBUFSIZ - 9); /* skip "@im=" */
1224
1225 if (p = strchr (server + 1, '@')) /* first one only */
1226 *p = '\0';
1227
1228 atom = XInternAtom (dpy, server, False);
1229 win = XGetSelectionOwner (dpy, atom);
1230
1231 if (win != None)
1232 return true;
1233 }
1234
1235 return false;
1236 }
1237
1238 void
1239 rxvt_term::im_send_spot ()
1240 {
1241 XPoint nspot;
1242 XVaNestedList preedit_attr;
1243
1244 if (!Input_Context
1245 || !focus
1246 || !(input_style & (XIMPreeditPosition | XIMPreeditCallbacks)))
1247 return;
1248
1249 im_set_position (nspot);
1250
1251 if (nspot.x == spot.x && nspot.y == spot.y)
1252 return;
1253
1254 spot = nspot;
1255
1256 preedit_attr = XVaCreateNestedList (0, XNSpotLocation, &spot, NULL);
1257 XSetICValues (Input_Context, XNPreeditAttributes, preedit_attr, NULL);
1258 XFree (preedit_attr);
1259 }
1260
1261 void
1262 rxvt_term::im_destroy ()
1263 {
1264 if (input_method)
1265 {
1266 if (Input_Context && input_method->xim)
1267 XDestroyIC (Input_Context);
1268
1269 display->put_xim (input_method);
1270 input_method = 0;
1271 }
1272
1273 Input_Context = 0;
1274 }
1275
1276 #ifdef ENABLE_XIM_ONTHESPOT
1277
1278 static void
1279 xim_preedit_start (XIC ic, XPointer client_data, XPointer call_data)
1280 {
1281 ((rxvt_term *)client_data)->make_current ();
1282 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_START, DT_END));
1283 }
1284
1285 static void
1286 xim_preedit_done (XIC ic, XPointer client_data, XPointer call_data)
1287 {
1288 ((rxvt_term *)client_data)->make_current ();
1289 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_DONE, DT_END));
1290 }
1291
1292 static void
1293 xim_preedit_draw (XIC ic, XPointer client_data, XIMPreeditDrawCallbackStruct *call_data)
1294 {
1295 rxvt_term *term = (rxvt_term *)client_data;
1296 XIMText *text = call_data->text;
1297
1298 term->make_current ();
1299
1300 if (text)
1301 {
1302 wchar_t *str;
1303
1304 if (!text->encoding_is_wchar && text->string.multi_byte)
1305 {
1306 // of course, X makes it ugly again
1307 if (term->rs[Rs_imLocale])
1308 SET_LOCALE (term->rs[Rs_imLocale]);
1309
1310 str = rxvt_temp_buf<wchar_t> (text->length + 1);
1311 mbstowcs (str, text->string.multi_byte, text->length + 1);
1312
1313 if (term->rs[Rs_imLocale])
1314 SET_LOCALE (term->locale);
1315 }
1316 else
1317 str = text->string.wide_char;
1318
1319 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1320 DT_INT, call_data->caret,
1321 DT_INT, call_data->chg_first,
1322 DT_INT, call_data->chg_length,
1323 DT_LCS_LEN, (void *)text->feedback, text->feedback ? (int)text->length : 0,
1324 DT_WCS_LEN, str, str ? (int)text->length : 0,
1325 DT_END));
1326 }
1327 else
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_END));
1333 }
1334
1335 #if 0
1336 static void
1337 xim_preedit_caret (XIC ic, XPointer client_data, XIMPreeditCaretCallbackStruct *call_data)
1338 {
1339 ((rxvt_term *)client_data)->make_current ();
1340 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_CARET,
1341 DT_INT, call_data->position,
1342 DT_INT, call_data->direction,
1343 DT_INT, call_data->style,
1344 DT_END));
1345 }
1346 #endif
1347
1348 #endif
1349
1350 /*
1351 * Try to open a XIM with the current modifiers, then see if we can
1352 * open a suitable preedit type
1353 */
1354 bool
1355 rxvt_term::im_get_ic (const char *modifiers)
1356 {
1357 int i, j, found;
1358 XIM xim;
1359 XPoint spot;
1360 XRectangle rect, status_rect, needed_rect;
1361 unsigned long fg, bg;
1362 const char *p;
1363 char **s;
1364 XIMStyles *xim_styles;
1365
1366 set_environ (envv);
1367
1368 if (! ((p = XSetLocaleModifiers (modifiers)) && *p))
1369 return false;
1370
1371 input_method = display->get_xim (locale, modifiers);
1372 if (input_method == NULL)
1373 return false;
1374
1375 xim = input_method->xim;
1376 spot.x = spot.y = -1;
1377
1378 xim_styles = NULL;
1379 if (XGetIMValues (xim, XNQueryInputStyle, &xim_styles, NULL)
1380 || !xim_styles || !xim_styles->count_styles)
1381 {
1382 im_destroy ();
1383 return false;
1384 }
1385
1386 const char *pet[] = { rs[Rs_preeditType], "OverTheSpot,OffTheSpot,Root,None" };
1387
1388 for (int pi = 0; pi < 2; pi++)
1389 {
1390 p = pet[pi];
1391
1392 if (!p)
1393 continue;
1394
1395 s = rxvt_strsplit (',', p);
1396
1397 for (i = found = 0; !found && s[i]; i++)
1398 {
1399 if (!strcmp (s[i], "OverTheSpot"))
1400 input_style = XIMPreeditPosition | XIMStatusNothing;
1401 else if (!strcmp (s[i], "OffTheSpot"))
1402 input_style = XIMPreeditArea | XIMStatusArea;
1403 else if (!strcmp (s[i], "Root"))
1404 input_style = XIMPreeditNothing | XIMStatusNothing;
1405 else if (!strcmp (s[i], "None"))
1406 input_style = XIMPreeditNone | XIMStatusNone;
1407 #ifdef ENABLE_XIM_ONTHESPOT
1408 else if (SHOULD_INVOKE (HOOK_XIM_PREEDIT_START) && !strcmp (s[i], "OnTheSpot"))
1409 input_style = XIMPreeditCallbacks | XIMStatusNothing;
1410 #endif
1411 else
1412 input_style = XIMPreeditNothing | XIMStatusNothing;
1413
1414 for (j = 0; j < xim_styles->count_styles; j++)
1415 if (input_style == xim_styles->supported_styles[j])
1416 {
1417 rxvt_free_strsplit (s);
1418
1419 found = 1;
1420 goto foundpet;
1421 }
1422
1423 }
1424
1425 rxvt_free_strsplit (s);
1426 }
1427
1428 foundpet:
1429
1430 XFree (xim_styles);
1431
1432 if (!found)
1433 {
1434 im_destroy ();
1435 return false;
1436 }
1437
1438 XFontSet fs = 0;
1439 XVaNestedList preedit_attr = 0, status_attr = 0;
1440
1441 if (input_style & (XIMPreeditPosition | XIMPreeditArea))
1442 {
1443 // fake us a font-set, please
1444 char **missing_charset_list;
1445 int missing_charset_count;
1446 char *def_string;
1447 char pat[512];
1448
1449 sprintf (pat,
1450 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1451 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1452 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1453 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1454 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1455 "*",
1456 fheight,
1457 fheight + 1, fheight - 1,
1458 fheight - 2, fheight + 2);
1459
1460 fs = XCreateFontSet (dpy, rs[Rs_imFont] ? rs[Rs_imFont] : pat,
1461 &missing_charset_list, &missing_charset_count, &def_string);
1462
1463 if (missing_charset_list)
1464 XFreeStringList (missing_charset_list);
1465
1466 if (!fs)
1467 {
1468 input_style &= ~(XIMPreeditPosition | XIMPreeditArea);
1469 rxvt_warn ("unable to create fontset for input method, try \"-pt Root\". Continuing.\n");
1470 }
1471 }
1472
1473 if (input_style & XIMPreeditPosition)
1474 {
1475 im_set_size (rect);
1476 im_set_position (spot);
1477 im_set_color (fg, bg);
1478
1479 preedit_attr = XVaCreateNestedList (0,
1480 XNForeground, fg,
1481 XNBackground, bg,
1482 XNArea, &rect,
1483 XNSpotLocation, &spot,
1484 XNFontSet, fs,
1485 NULL);
1486 }
1487 else if (input_style & XIMPreeditArea)
1488 {
1489 im_set_color (fg, bg);
1490
1491 /*
1492 * The necessary width of preedit area is unknown
1493 * until create input context.
1494 */
1495 needed_rect.width = 0;
1496 im_set_preedit_area (rect, status_rect, needed_rect);
1497
1498 preedit_attr = XVaCreateNestedList (0,
1499 XNForeground, fg,
1500 XNBackground, bg,
1501 XNArea, &rect,
1502 XNFontSet, fs,
1503 NULL);
1504 status_attr = XVaCreateNestedList (0,
1505 XNForeground, fg,
1506 XNBackground, bg,
1507 XNArea, &status_rect,
1508 XNFontSet, fs,
1509 NULL);
1510 }
1511 #if ENABLE_XIM_ONTHESPOT
1512 else if (input_style & XIMPreeditCallbacks)
1513 {
1514 XIMCallback xcb[4];
1515
1516 im_set_position (spot);
1517
1518 xcb[0].client_data = (XPointer)this; xcb[0].callback = (XIMProc)xim_preedit_start;
1519 xcb[1].client_data = (XPointer)this; xcb[1].callback = (XIMProc)xim_preedit_done;
1520 xcb[2].client_data = (XPointer)this; xcb[2].callback = (XIMProc)xim_preedit_draw;
1521 # if 0
1522 xcb[3].client_data = (XPointer)this; xcb[3].callback = (XIMProc)xim_preedit_caret;
1523 # endif
1524
1525 preedit_attr = XVaCreateNestedList (0,
1526 XNSpotLocation, &spot,
1527 XNPreeditStartCallback, &xcb[0],
1528 XNPreeditDoneCallback , &xcb[1],
1529 XNPreeditDrawCallback , &xcb[2],
1530 # if 0
1531 XNPreeditCaretCallback, &xcb[3],
1532 # endif
1533 NULL);
1534 }
1535 #endif
1536
1537 Input_Context = XCreateIC (xim,
1538 XNInputStyle, input_style,
1539 XNClientWindow, vt,
1540 XNFocusWindow, parent,
1541 preedit_attr ? XNPreeditAttributes : NULL,
1542 preedit_attr,
1543 status_attr ? XNStatusAttributes : NULL,
1544 status_attr, NULL);
1545
1546 if (preedit_attr) XFree (preedit_attr);
1547 if (status_attr) XFree (status_attr);
1548 if (fs) XFreeFontSet (dpy, fs);
1549
1550 if (Input_Context == NULL)
1551 {
1552 rxvt_warn ("failed to create input context, continuing without XIM.\n");
1553 im_destroy ();
1554 return false;
1555 }
1556
1557 #if 0
1558 // unfortunately, only the focus window is used by XIM, hard to fix
1559 if (!XGetICValues (Input_Context, XNFilterEvents, &vt_emask_xim, NULL))
1560 vt_select_input ();
1561 #endif
1562
1563 im_set_position ();
1564
1565 return true;
1566 }
1567
1568 void
1569 rxvt_term::im_cb ()
1570 {
1571 int i;
1572 const char *p;
1573 char **s;
1574 char buf[IMBUFSIZ];
1575
1576 make_current ();
1577
1578 im_destroy ();
1579
1580 if (Input_Context)
1581 return;
1582
1583 if (rs[Rs_imLocale])
1584 SET_LOCALE (rs[Rs_imLocale]);
1585
1586 p = rs[Rs_inputMethod];
1587 if (p && *p)
1588 {
1589 bool found = false;
1590
1591 s = rxvt_strsplit (',', p);
1592
1593 for (i = 0; s[i]; i++)
1594 {
1595 if (*s[i])
1596 {
1597 strcpy (buf, "@im=");
1598 strncat (buf, s[i], IMBUFSIZ - 5);
1599 if (im_get_ic (buf))
1600 {
1601 found = true;
1602 break;
1603 }
1604 }
1605 }
1606
1607 rxvt_free_strsplit (s);
1608
1609 if (found)
1610 goto done;
1611 }
1612
1613 /* try with XMODIFIERS env. var. */
1614 if (im_get_ic (""))
1615 goto done;
1616
1617 /* try with no modifiers base IF the user didn't specify an IM */
1618 if (im_get_ic ("@im=none"))
1619 goto done;
1620
1621 done:
1622 if (rs[Rs_imLocale])
1623 SET_LOCALE (locale);
1624 }
1625
1626 void
1627 rxvt_term::im_set_position ()
1628 {
1629 XRectangle preedit_rect, status_rect, *needed_rect;
1630 XVaNestedList preedit_attr, status_attr;
1631
1632 if (!Input_Context
1633 || !focus
1634 || !(input_style & (XIMPreeditArea | XIMPreeditPosition))
1635 || !im_is_running ())
1636 return;
1637
1638 if (input_style & XIMPreeditPosition)
1639 {
1640 im_set_size (preedit_rect);
1641 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1642
1643 XSetICValues (Input_Context,
1644 XNPreeditAttributes, preedit_attr, NULL);
1645 }
1646 else
1647 {
1648 /* Getting the necessary width of preedit area */
1649 status_attr = XVaCreateNestedList (0, XNAreaNeeded, &needed_rect, NULL);
1650 XGetICValues (Input_Context, XNStatusAttributes, status_attr, NULL);
1651 XFree (status_attr);
1652
1653 im_set_preedit_area (preedit_rect, status_rect, *needed_rect);
1654 XFree (needed_rect);
1655
1656 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1657 status_attr = XVaCreateNestedList (0, XNArea, &status_rect, NULL);
1658
1659 XSetICValues (Input_Context,
1660 XNPreeditAttributes, preedit_attr,
1661 XNStatusAttributes, status_attr,
1662 NULL);
1663
1664 XFree (status_attr);
1665 }
1666
1667 XFree (preedit_attr);
1668 }
1669 #endif /* USE_XIM */
1670
1671 void
1672 rxvt_term::get_window_origin (int &x, int &y)
1673 {
1674 Window cr;
1675 XTranslateCoordinates (dpy, parent, display->root, 0, 0, &x, &y, &cr);
1676 }
1677
1678 #ifdef HAVE_BG_PIXMAP
1679
1680 void
1681 rxvt_term::update_background ()
1682 {
1683 if (update_background_ev.is_active ())
1684 return;
1685
1686 bg_invalidate ();
1687
1688 if (!mapped)
1689 return;
1690
1691 ev_tstamp to_wait = 0.5 - (ev::now () - bg_valid_since);
1692
1693 if (to_wait <= 0.)
1694 bg_render ();
1695 else
1696 update_background_ev.start (to_wait);
1697 }
1698
1699 void
1700 rxvt_term::update_background_cb (ev::timer &w, int revents)
1701 {
1702 make_current ();
1703
1704 update_background_ev.stop ();
1705 bg_render ();
1706 refresh_check ();
1707 }
1708
1709 #endif /* HAVE_BG_PIXMAP */
1710
1711 /*----------------------- end-of-file (C source) -----------------------*/