1 /*
2 * Copyright (C) 1999-2019 Paul Davis <paul@linuxaudiosystems.com>
3 * Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
4 * Copyright (C) 2006-2007 Tim Mayberry <mojofunk@gmail.com>
5 * Copyright (C) 2007-2011 David Robillard <d@drobilla.net>
6 * Copyright (C) 2007-2011 Doug McLain <doug@nostar.net>
7 * Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
8 * Copyright (C) 2013 John Emmas <john@creativepost.co.uk>
9 * Copyright (C) 2014-2019 Robin Gareus <robin@gareus.org>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License along
22 * with this program; if not, write to the Free Software Foundation, Inc.,
23 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 */
25
26 #include <cmath>
27 #include <fcntl.h>
28 #include <signal.h>
29 #include <unistd.h>
30 #include <cerrno>
31 #include <climits>
32 #include <cctype>
33
34 #include <gtkmm.h>
35
36 #include "pbd/error.h"
37 #include "pbd/touchable.h"
38 #include "pbd/failed_constructor.h"
39 #include "pbd/localtime_r.h"
40 #include "pbd/pthread_utils.h"
41 #include "pbd/replace_all.h"
42
43 #include "gtkmm2ext/application.h"
44 #include "gtkmm2ext/bindings.h"
45 #include "gtkmm2ext/gtk_ui.h"
46 #include "gtkmm2ext/textviewer.h"
47 #include "gtkmm2ext/utils.h"
48 #include "gtkmm2ext/window_title.h"
49 #include "gtkmm2ext/actions.h"
50 #include "gtkmm2ext/activatable.h"
51 #include "gtkmm2ext/actions.h"
52 #include "gtkmm2ext/gui_thread.h"
53
54 #include "pbd/i18n.h"
55
56 using namespace Gtkmm2ext;
57 using namespace Gtk;
58 using namespace Glib;
59 using namespace PBD;
60 using std::map;
61
62 UI* UI::theGtkUI = 0;
63
64 BaseUI::RequestType Gtkmm2ext::NullMessage = BaseUI::new_request_type();
65 BaseUI::RequestType Gtkmm2ext::ErrorMessage = BaseUI::new_request_type();
66 BaseUI::RequestType Gtkmm2ext::TouchDisplay = BaseUI::new_request_type();
67 BaseUI::RequestType Gtkmm2ext::StateChange = BaseUI::new_request_type();
68 BaseUI::RequestType Gtkmm2ext::SetTip = BaseUI::new_request_type();
69 BaseUI::RequestType Gtkmm2ext::AddIdle = BaseUI::new_request_type();
70 BaseUI::RequestType Gtkmm2ext::AddTimeout = BaseUI::new_request_type();
71
72 #include "pbd/abstract_ui.cc" /* instantiate the template */
73
74 template class AbstractUI<Gtkmm2ext::UIRequest>;
75
UI(string application_name,string thread_name,int * argc,char *** argv)76 UI::UI (string application_name, string thread_name, int *argc, char ***argv)
77 : AbstractUI<UIRequest> (thread_name)
78 , _receiver (*this)
79 , global_bindings (0)
80 , errors (0)
81 {
82 theMain = new Main (argc, argv);
83
84 char buf[18];
85 /* pthread public name has a 16 char limit */
86 snprintf (buf, sizeof (buf), "%.11sGUI", PROGRAM_NAME);
87 pthread_set_name (buf);
88
89 _active = false;
90
91 if (!theGtkUI) {
92 theGtkUI = this;
93 } else {
94 fatal << "duplicate UI requested" << endmsg;
95 abort(); /* NOTREACHED */
96 }
97
98 /* the GUI event loop runs in the main thread of the app,
99 which is assumed to have called this.
100 */
101
102 run_loop_thread = Threads::Thread::self();
103
104 /* store "this" as the UI-for-thread of this thread, same argument
105 as for previous line.
106 */
107
108 set_event_loop_for_thread (this);
109
110 /* we will be receiving requests */
111
112 EventLoop::register_request_buffer_factory ("gui", request_buffer_factory);
113
114 /* attach our request source to the default main context */
115
116 attach_request_source ();
117
118 errors = new TextViewer (800,600);
119 errors->text().set_editable (false);
120 errors->text().set_name ("ErrorText");
121 errors->signal_unmap().connect (sigc::bind (sigc::ptr_fun (&ActionManager::uncheck_toggleaction), X_("Editor/toggle-log-window")));
122
123 Glib::set_application_name (application_name);
124
125 WindowTitle title(Glib::get_application_name());
126 title += _("Log");
127 errors->set_title (title.get_string());
128
129 errors->dismiss_button().set_name ("ErrorLogCloseButton");
130 errors->signal_delete_event().connect (sigc::bind (sigc::ptr_fun (just_hide_it), (Window *) errors));
131 errors->set_type_hint (Gdk::WINDOW_TYPE_HINT_UTILITY);
132
133 //load_rcfile (rcfile);
134
135 /* instantiate the Application singleton */
136
137 Application::instance();
138 }
139
~UI()140 UI::~UI ()
141 {
142 _receiver.hangup ();
143 delete (errors);
144 }
145
146 bool
caller_is_ui_thread()147 UI::caller_is_ui_thread ()
148 {
149 return Threads::Thread::self() == run_loop_thread;
150 }
151
152 int
load_rcfile(string path,bool themechange)153 UI::load_rcfile (string path, bool themechange)
154 {
155 /* Yes, pointers to Glib::RefPtr. If these are not kept around,
156 * a segfault somewhere deep in the wonderfully robust glib will result.
157 * This does not occur if wiget.get_style is used instead of rc.get_style below,
158 * except that doesn't actually work...
159 */
160
161 static Glib::RefPtr<Style>* fatal_style = 0;
162 static Glib::RefPtr<Style>* error_style = 0;
163 static Glib::RefPtr<Style>* warning_style = 0;
164 static Glib::RefPtr<Style>* info_style = 0;
165 static Glib::RefPtr<Style>* debug_style = 0;
166
167 if (path.length() == 0) {
168 return -1;
169 }
170
171 if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_REGULAR)) {
172 error << "UI: couldn't find rc file \""
173 << path
174 << '"'
175 << endmsg;
176 return -1;
177 }
178
179 RC rc (path.c_str());
180 //this is buggy in gtkmm for some reason, so use C
181 //RC::reset_styles (Gtk::Settings::get_default());
182 gtk_rc_reset_styles (gtk_settings_get_default());
183
184 theme_changed.emit();
185
186 if (themechange) {
187 return 0; //Don't continue on every time there is a theme change
188 }
189
190 /* have to pack widgets into a toplevel window so that styles will stick */
191
192 Window temp_window (WINDOW_TOPLEVEL);
193 temp_window.ensure_style ();
194
195 HBox box;
196 Label fatal_widget;
197 Label error_widget;
198 Label warning_widget;
199 Label info_widget;
200 Label debug_widget;
201 RefPtr<Gtk::Style> style;
202 RefPtr<TextBuffer> buffer (errors->text().get_buffer());
203
204 box.pack_start (fatal_widget);
205 box.pack_start (error_widget);
206 box.pack_start (warning_widget);
207 box.pack_start (info_widget);
208 box.pack_start (debug_widget);
209
210 fatal_ptag = buffer->create_tag();
211 fatal_mtag = buffer->create_tag();
212 error_ptag = buffer->create_tag();
213 error_mtag = buffer->create_tag();
214 warning_ptag = buffer->create_tag();
215 warning_mtag = buffer->create_tag();
216 info_ptag = buffer->create_tag();
217 info_mtag = buffer->create_tag();
218 debug_ptag = buffer->create_tag();
219 debug_mtag = buffer->create_tag();
220
221 fatal_widget.set_name ("FatalMessage");
222 delete fatal_style;
223
224 /* This next line and the similar ones below are sketchily
225 * guessed to fix #2885. I think maybe that problems occur
226 * because with gtk_rc_get_style (to quote its docs) "no
227 * refcount is added to the returned style". So I've switched
228 * this to use Glib::wrap with take_copy == true, which requires
229 * all the nasty casts and calls to plain-old-C GTK.
230 *
231 * At worst I think this causes a memory leak; at least it appears
232 * to fix the bug.
233 *
234 * I could be wrong about any or all of the above.
235 */
236 fatal_style = new Glib::RefPtr<Style> (Glib::wrap (gtk_rc_get_style (reinterpret_cast<GtkWidget*> (fatal_widget.gobj())), true));
237
238 fatal_ptag->property_font_desc().set_value((*fatal_style)->get_font());
239 fatal_ptag->property_foreground_gdk().set_value((*fatal_style)->get_fg(STATE_ACTIVE));
240 fatal_ptag->property_background_gdk().set_value((*fatal_style)->get_bg(STATE_ACTIVE));
241 fatal_mtag->property_font_desc().set_value((*fatal_style)->get_font());
242 fatal_mtag->property_foreground_gdk().set_value((*fatal_style)->get_fg(STATE_NORMAL));
243 fatal_mtag->property_background_gdk().set_value((*fatal_style)->get_bg(STATE_NORMAL));
244
245 error_widget.set_name ("ErrorMessage");
246 delete error_style;
247 error_style = new Glib::RefPtr<Style> (Glib::wrap (gtk_rc_get_style (reinterpret_cast<GtkWidget*> (error_widget.gobj())), true));
248
249 error_ptag->property_font_desc().set_value((*error_style)->get_font());
250 error_ptag->property_foreground_gdk().set_value((*error_style)->get_fg(STATE_ACTIVE));
251 error_ptag->property_background_gdk().set_value((*error_style)->get_bg(STATE_ACTIVE));
252 error_mtag->property_font_desc().set_value((*error_style)->get_font());
253 error_mtag->property_foreground_gdk().set_value((*error_style)->get_fg(STATE_NORMAL));
254 error_mtag->property_background_gdk().set_value((*error_style)->get_bg(STATE_NORMAL));
255
256 warning_widget.set_name ("WarningMessage");
257 delete warning_style;
258 warning_style = new Glib::RefPtr<Style> (Glib::wrap (gtk_rc_get_style (reinterpret_cast<GtkWidget*> (warning_widget.gobj())), true));
259
260 warning_ptag->property_font_desc().set_value((*warning_style)->get_font());
261 warning_ptag->property_foreground_gdk().set_value((*warning_style)->get_fg(STATE_ACTIVE));
262 warning_ptag->property_background_gdk().set_value((*warning_style)->get_bg(STATE_ACTIVE));
263 warning_mtag->property_font_desc().set_value((*warning_style)->get_font());
264 warning_mtag->property_foreground_gdk().set_value((*warning_style)->get_fg(STATE_NORMAL));
265 warning_mtag->property_background_gdk().set_value((*warning_style)->get_bg(STATE_NORMAL));
266
267 info_widget.set_name ("InfoMessage");
268 delete info_style;
269 info_style = new Glib::RefPtr<Style> (Glib::wrap (gtk_rc_get_style (reinterpret_cast<GtkWidget*> (info_widget.gobj())), true));
270
271 info_ptag->property_font_desc().set_value((*info_style)->get_font());
272 info_ptag->property_foreground_gdk().set_value((*info_style)->get_fg(STATE_ACTIVE));
273 info_ptag->property_background_gdk().set_value((*info_style)->get_bg(STATE_ACTIVE));
274 info_mtag->property_font_desc().set_value((*info_style)->get_font());
275 info_mtag->property_foreground_gdk().set_value((*info_style)->get_fg(STATE_NORMAL));
276 info_mtag->property_background_gdk().set_value((*info_style)->get_bg(STATE_NORMAL));
277
278 debug_widget.set_name ("DebugMessage");
279 delete debug_style;
280 debug_style = new Glib::RefPtr<Style> (Glib::wrap (gtk_rc_get_style (reinterpret_cast<GtkWidget*> (debug_widget.gobj())), true));
281
282 debug_ptag->property_font_desc().set_value((*debug_style)->get_font());
283 debug_ptag->property_foreground_gdk().set_value((*debug_style)->get_fg(STATE_ACTIVE));
284 debug_ptag->property_background_gdk().set_value((*debug_style)->get_bg(STATE_ACTIVE));
285 debug_mtag->property_font_desc().set_value((*debug_style)->get_font());
286 debug_mtag->property_foreground_gdk().set_value((*debug_style)->get_fg(STATE_NORMAL));
287 debug_mtag->property_background_gdk().set_value((*debug_style)->get_bg(STATE_NORMAL));
288
289 return 0;
290 }
291
292 void
run(Receiver & old_receiver)293 UI::run (Receiver &old_receiver)
294 {
295 _receiver.listen_to (debug);
296 _receiver.listen_to (info);
297 _receiver.listen_to (warning);
298 _receiver.listen_to (error);
299 _receiver.listen_to (fatal);
300
301 /* stop the old receiver (text/console) once we hit the first idle */
302
303 Glib::signal_idle().connect (bind_return (mem_fun (old_receiver, &Receiver::hangup), false));
304
305 if (starting ()) {
306 return;
307 }
308
309 _active = true;
310 theMain->run ();
311 _active = false;
312
313 return;
314 }
315
316 bool
running()317 UI::running ()
318 {
319 return _active;
320 }
321
322 void
quit()323 UI::quit ()
324 {
325 UIRequest *req = get_request (Quit);
326
327 if (req == 0) {
328 return;
329 }
330
331 send_request (req);
332 }
333
idle_quit()334 static bool idle_quit ()
335 {
336 Main::quit ();
337 return true;
338 }
339
340 void
do_quit()341 UI::do_quit ()
342 {
343 if (getenv ("ARDOUR_RUNNING_UNDER_VALGRIND")) {
344 Main::quit ();
345 } else {
346 Glib::signal_idle().connect (sigc::ptr_fun (idle_quit));
347 }
348 }
349
350 void
touch_display(Touchable * display)351 UI::touch_display (Touchable *display)
352 {
353 UIRequest *req = get_request (TouchDisplay);
354
355 if (req == 0) {
356 return;
357 }
358
359 req->display = display;
360
361 send_request (req);
362 }
363
364 void
set_tip(Widget & w,const gchar * tip)365 UI::set_tip (Widget &w, const gchar *tip)
366 {
367 set_tip(&w, tip, "");
368 }
369
370 void
set_tip(Widget & w,const std::string & tip)371 UI::set_tip (Widget &w, const std::string& tip)
372 {
373 set_tip(&w, tip.c_str(), "");
374 }
375
376 void
set_tip(Widget * w,const gchar * tip,const gchar * hlp)377 UI::set_tip (Widget *w, const gchar *tip, const gchar *hlp)
378 {
379 UIRequest *req = get_request (SetTip);
380
381 std::string msg(tip);
382
383 Glib::RefPtr<Gtk::Action> action = w->get_action();
384
385 if (!action) {
386 Gtkmm2ext::Activatable* activatable;
387 if ((activatable = dynamic_cast<Gtkmm2ext::Activatable*>(w))) {
388 action = activatable->get_related_action();
389 }
390 }
391
392 if (action) {
393 Bindings* bindings = (Bindings*) w->get_data ("ardour-bindings");
394 if (!bindings) {
395 Gtk::Window* win = (Gtk::Window*) w->get_toplevel();
396 if (win) {
397 bindings = (Bindings*) win->get_data ("ardour-bindings");
398 }
399 }
400
401 if (!bindings) {
402 bindings = global_bindings;
403 }
404
405 if (bindings) {
406 Bindings::Operation op;
407 KeyboardKey kb = bindings->get_binding_for_action (action, op);
408 string shortcut = kb.display_label ();
409 if (!shortcut.empty()) {
410 replace_all (shortcut, "<", "");
411 replace_all (shortcut, ">", "-");
412 msg.append(_("\n\nShortcut: ")).append (shortcut);
413 }
414 }
415 }
416
417 if (req == 0) {
418 return;
419 }
420
421
422 req->widget = w;
423 req->msg = msg.c_str();
424 req->msg2 = hlp;
425
426 send_request (req);
427 }
428
429 void
set_state(Widget * w,StateType state)430 UI::set_state (Widget *w, StateType state)
431 {
432 UIRequest *req = get_request (StateChange);
433
434 if (req == 0) {
435 return;
436 }
437
438 req->new_state = state;
439 req->widget = w;
440
441 send_request (req);
442 }
443
444 void
idle_add(int (* func)(void *),void * arg)445 UI::idle_add (int (*func)(void *), void *arg)
446 {
447 UIRequest *req = get_request (AddIdle);
448
449 if (req == 0) {
450 return;
451 }
452
453 req->function = func;
454 req->arg = arg;
455
456 send_request (req);
457 }
458
459 /* END abstract_ui interfaces */
460
461 /** Create a PBD::EventLoop::InvalidationRecord and attach a callback
462 * to a given sigc::trackable so that PBD::EventLoop::invalidate_request
463 * is called when that trackable is destroyed.
464 */
465 PBD::EventLoop::InvalidationRecord*
__invalidator(sigc::trackable & trackable,const char * file,int line)466 __invalidator (sigc::trackable& trackable, const char* file, int line)
467 {
468 PBD::EventLoop::InvalidationRecord* ir = new PBD::EventLoop::InvalidationRecord;
469
470 ir->file = file;
471 ir->line = line;
472
473 trackable.add_destroy_notify_callback (ir, PBD::EventLoop::invalidate_request);
474
475 return ir;
476 }
477
478 void
do_request(UIRequest * req)479 UI::do_request (UIRequest* req)
480 {
481 if (req->type == ErrorMessage) {
482
483 process_error_message (req->chn, req->msg);
484 free (const_cast<char*>(req->msg)); /* it was strdup'ed */
485 req->msg = 0; /* don't free it again in the destructor */
486
487 } else if (req->type == Quit) {
488
489 do_quit ();
490
491 } else if (req->type == CallSlot) {
492 #ifndef NDEBUG
493 if (getenv ("DEBUG_THREADED_SIGNALS")) {
494 cerr << "call slot for " << event_loop_name() << endl;
495 }
496 #endif
497 req->the_slot ();
498
499 } else if (req->type == TouchDisplay) {
500
501 req->display->touch ();
502 if (req->display->delete_after_touch()) {
503 delete req->display;
504 }
505
506 } else if (req->type == StateChange) {
507
508 req->widget->set_state (req->new_state);
509
510 } else if (req->type == SetTip) {
511
512 gchar* old = gtk_widget_get_tooltip_markup (req->widget->gobj());
513 if (
514 (old && req->msg && strcmp (old, req->msg))
515 ||
516 ((old == NULL) != (req->msg == NULL || req->msg[0] == '\0'))
517 ) {
518 gtk_widget_set_tooltip_markup (req->widget->gobj(), req->msg);
519 }
520 g_free (old);
521
522 } else {
523
524 error << "GtkUI: unknown request type "
525 << (int) req->type
526 << endmsg;
527 }
528 }
529
530 /*======================================================================
531 Error Display
532 ======================================================================*/
533
534 void
dump_errors(std::ostream & ostr,size_t limit)535 UI::dump_errors (std::ostream& ostr, size_t limit)
536 {
537 Glib::Threads::Mutex::Lock lm (error_lock);
538 bool first = true;
539
540 if (limit > 0) {
541 /* reverse listing, Errors only */
542 for (list<string>::reverse_iterator i = error_stack.rbegin(); i != error_stack.rend(); ++i) {
543 if ((*i).substr (0, 9) == X_("WARNING: ") || (*i).substr (0, 6) == X_("INFO: ")) {
544 continue;
545 }
546 if (first) {
547 first = false;
548 }
549 ostr << *i << endl;
550 if (--limit == 0) {
551 ostr << "..." << endl;
552 break;
553 }
554 }
555 }
556
557 if (first) {
558 for (list<string>::const_iterator i = error_stack.begin(); i != error_stack.end(); ++i) {
559 if (first) {
560 ostr << endl << X_("Log Messages:") << endl;
561 first = false;
562 }
563 ostr << *i << endl;
564 if (limit > 0) {
565 if (--limit == 0) {
566 ostr << "..." << endl;
567 break;
568 }
569 }
570 }
571 }
572 ostr << endl;
573 }
574
575 void
receive(Transmitter::Channel chn,const char * str)576 UI::receive (Transmitter::Channel chn, const char *str)
577 {
578 {
579 Glib::Threads::Mutex::Lock lm (error_lock);
580 switch (chn) {
581 case Transmitter::Fatal:
582 error_stack.push_back (string (X_("FATAL: ")) + str);
583 break;
584 case Transmitter::Error:
585 error_stack.push_back (string (X_("ERROR: ")) + str);
586 break;
587 case Transmitter::Warning:
588 error_stack.push_back (string (X_("WARNING: ")) + str);
589 break;
590 case Transmitter::Info:
591 error_stack.push_back (string (X_("INFO: ")) + str);
592 break;
593 case Transmitter::Debug:
594 error_stack.push_back (string (X_("Debug: ")) + str);
595 break;
596 case Transmitter::Throw:
597 error_stack.push_back (string (X_("THROW: ")) + str);
598 break;
599 }
600 }
601
602 if (caller_is_ui_thread()) {
603 process_error_message (chn, str);
604 } else {
605 UIRequest* req = get_request (ErrorMessage);
606
607 if (req == 0) {
608 return;
609 }
610
611 req->chn = chn;
612 req->msg = strdup (str);
613
614 send_request (req);
615 }
616 }
617
618 void
process_error_message(Transmitter::Channel chn,const char * str)619 UI::process_error_message (Transmitter::Channel chn, const char *str)
620 {
621 RefPtr<Style> style;
622 RefPtr<TextBuffer::Tag> ptag;
623 RefPtr<TextBuffer::Tag> mtag;
624 const char *prefix;
625 size_t prefix_len;
626 bool fatal_received = false;
627
628 switch (chn) {
629 case Transmitter::Fatal:
630 prefix = "[FATAL]: ";
631 ptag = fatal_ptag;
632 mtag = fatal_mtag;
633 prefix_len = 9;
634 fatal_received = true;
635 break;
636 case Transmitter::Error:
637 prefix = "[ERROR]: ";
638 ptag = error_ptag;
639 mtag = error_mtag;
640 prefix_len = 9;
641 break;
642 case Transmitter::Warning:
643 prefix = "[WARNING]: ";
644 ptag = warning_ptag;
645 mtag = warning_mtag;
646 prefix_len = 11;
647 break;
648 case Transmitter::Info:
649 prefix = "[INFO]: ";
650 ptag = info_ptag;
651 mtag = info_mtag;
652 prefix_len = 8;
653 break;
654 case Transmitter::Debug:
655 prefix = "[DEBUG]: ";
656 ptag = debug_ptag;
657 mtag = debug_mtag;
658 prefix_len = 9;
659 break;
660 default:
661 /* no choice but to use text/console output here */
662 cerr << "programmer error in UI::check_error_messages (channel = " << chn << ")\n";
663 ::exit (EXIT_FAILURE);
664 }
665
666 errors->text().get_buffer()->begin_user_action();
667
668 if (fatal_received) {
669 handle_fatal (str);
670 } else {
671
672 if (!ptag || !mtag) {
673 /* oops, message sent before we set up tags - don't crash */
674 cerr << prefix << str << endl;
675 } else {
676 display_message (prefix, prefix_len, ptag, mtag, str);
677 }
678 }
679
680 errors->text().get_buffer()->end_user_action();
681 }
682
683 void
show_errors()684 UI::show_errors ()
685 {
686 Glib::RefPtr<ToggleAction> tact = ActionManager::get_toggle_action (X_("Editor"), X_("toggle-log-window"));
687 tact->set_active ();
688 }
689
690 void
toggle_errors()691 UI::toggle_errors ()
692 {
693 Glib::RefPtr<ToggleAction> tact = ActionManager::get_toggle_action (X_("Editor"), X_("toggle-log-window"));
694 if (tact->get_active()) {
695 errors->set_position (WIN_POS_MOUSE);
696 errors->show ();
697 } else {
698 errors->hide ();
699 }
700 }
701
702 void
display_message(const char * prefix,gint,RefPtr<TextBuffer::Tag> ptag,RefPtr<TextBuffer::Tag> mtag,const char * msg)703 UI::display_message (const char *prefix, gint /*prefix_len*/, RefPtr<TextBuffer::Tag> ptag, RefPtr<TextBuffer::Tag> mtag, const char *msg)
704 {
705 RefPtr<TextBuffer> buffer (errors->text().get_buffer());
706 Glib::DateTime tm (g_date_time_new_now_local ());
707
708 buffer->insert_with_tag(buffer->end(), tm.format ("%FT%H:%M:%S "), ptag);
709 buffer->insert_with_tag(buffer->end(), prefix, ptag);
710 buffer->insert_with_tag(buffer->end(), msg, mtag);
711 buffer->insert_with_tag(buffer->end(), "\n", mtag);
712
713 errors->scroll_to_bottom ();
714 }
715
716 void
handle_fatal(const char * message)717 UI::handle_fatal (const char *message)
718 {
719 Dialog win;
720 Label label (message);
721 Button quit (_("Press To Exit"));
722 HBox hpacker;
723
724 win.set_default_size (400, 100);
725
726 WindowTitle title(Glib::get_application_name());
727 title += ": Fatal Error";
728 win.set_title (title.get_string());
729
730 win.set_position (WIN_POS_MOUSE);
731 win.set_border_width (12);
732
733 win.get_vbox()->pack_start (label, true, true);
734 hpacker.pack_start (quit, true, false);
735 win.get_vbox()->pack_start (hpacker, false, false);
736
737 quit.signal_clicked().connect(mem_fun(*this,&UI::quit));
738
739 win.show_all ();
740 win.set_modal (true);
741
742 theMain->run ();
743
744 _exit (1);
745 }
746
747 void
popup_error(const string & text)748 UI::popup_error (const string& text)
749 {
750 if (!caller_is_ui_thread()) {
751 error << "non-UI threads can't use UI::popup_error"
752 << endmsg;
753 return;
754 }
755
756 MessageDialog msg (text);
757 msg.set_title (string_compose (_("I'm sorry %1, I can't do that"), g_get_user_name()));
758 msg.set_wmclass (X_("error"), Glib::get_application_name());
759 msg.set_position (WIN_POS_MOUSE);
760 msg.run ();
761 }
762
763 void
flush_pending(float timeout)764 UI::flush_pending (float timeout)
765 {
766 if (!caller_is_ui_thread()) {
767 error << "non-UI threads cannot call UI::flush_pending()"
768 << endmsg;
769 return;
770 }
771
772 int64_t end = g_get_monotonic_time () + timeout * 1e6;
773
774 gtk_main_iteration();
775
776 while (gtk_events_pending()) {
777 if (timeout > 0 && end < g_get_monotonic_time ()) {
778 cerr << "UI::flush_pending timed out after " << timeout << "s.\n";
779 break;
780 }
781 gtk_main_iteration();
782 }
783 }
784
785 bool
just_hide_it(GdkEventAny *,Window * win)786 UI::just_hide_it (GdkEventAny* /*ev*/, Window *win)
787 {
788 win->hide ();
789 return true;
790 }
791
792 void
color_selection_done(bool status)793 UI::color_selection_done (bool status)
794 {
795 color_picked = status;
796 Main::quit ();
797 }
798
799 bool
color_selection_deleted(GdkEventAny *)800 UI::color_selection_deleted (GdkEventAny* /*ev*/)
801 {
802 Main::quit ();
803 return true;
804 }
805