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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: app.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling, Julian Smart | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | #ifdef __GNUG__ | |
11 | #pragma implementation "app.h" | |
12 | #endif | |
13 | ||
14 | #ifdef __VMS | |
15 | #include <vms_jackets.h> | |
16 | #undef ConnectionNumber | |
17 | #endif | |
18 | ||
19 | #include "wx/app.h" | |
20 | #include "wx/gdicmn.h" | |
21 | #include "wx/utils.h" | |
22 | #include "wx/intl.h" | |
23 | #include "wx/log.h" | |
24 | #include "wx/memory.h" | |
25 | #include "wx/font.h" | |
26 | #include "wx/settings.h" | |
27 | #include "wx/dialog.h" | |
28 | #include "wx/msgdlg.h" | |
29 | #include "wx/file.h" | |
30 | #include "wx/filename.h" | |
31 | ||
32 | #if wxUSE_WX_RESOURCES | |
33 | #include "wx/resource.h" | |
34 | #endif | |
35 | ||
36 | #include "wx/module.h" | |
37 | #include "wx/image.h" | |
38 | ||
39 | #ifdef __WXUNIVERSAL__ | |
40 | #include "wx/univ/theme.h" | |
41 | #include "wx/univ/renderer.h" | |
42 | #endif | |
43 | ||
44 | #if wxUSE_THREADS | |
45 | #include "wx/thread.h" | |
46 | #endif | |
47 | ||
48 | #include <unistd.h> | |
49 | ||
50 | #ifdef HAVE_POLL | |
51 | #if defined(__VMS) | |
52 | #include <poll.h> | |
53 | #else | |
54 | // bug in the OpenBSD headers: at least in 3.1 there is no extern "C" | |
55 | // in neither poll.h nor sys/poll.h which results in link errors later | |
56 | #ifdef __OPENBSD__ | |
57 | extern "C" | |
58 | { | |
59 | #endif | |
60 | ||
61 | #include <sys/poll.h> | |
62 | ||
63 | #ifdef __OPENBSD__ | |
64 | }; | |
65 | #endif | |
66 | #endif // platform | |
67 | #else // !HAVE_POLL | |
68 | // we implement poll() ourselves using select() which is supposed exist in | |
69 | // all modern Unices | |
70 | #include <sys/types.h> | |
71 | #include <sys/time.h> | |
72 | #include <unistd.h> | |
73 | #endif // HAVE_POLL/!HAVE_POLL | |
74 | ||
75 | #include "wx/gtk/win_gtk.h" | |
76 | ||
77 | #include <gtk/gtk.h> | |
78 | ||
79 | ||
80 | //----------------------------------------------------------------------------- | |
81 | // global data | |
82 | //----------------------------------------------------------------------------- | |
83 | ||
84 | wxApp *wxTheApp = (wxApp *) NULL; | |
85 | wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL; | |
86 | ||
87 | bool g_mainThreadLocked = FALSE; | |
88 | gint g_pendingTag = 0; | |
89 | ||
90 | static GtkWidget *gs_RootWindow = (GtkWidget*) NULL; | |
91 | ||
92 | //----------------------------------------------------------------------------- | |
93 | // idle system | |
94 | //----------------------------------------------------------------------------- | |
95 | ||
96 | extern bool g_isIdle; | |
97 | ||
98 | void wxapp_install_idle_handler(); | |
99 | ||
100 | //----------------------------------------------------------------------------- | |
101 | // wxExit | |
102 | //----------------------------------------------------------------------------- | |
103 | ||
104 | void wxExit() | |
105 | { | |
106 | gtk_main_quit(); | |
107 | } | |
108 | ||
109 | //----------------------------------------------------------------------------- | |
110 | // wxYield | |
111 | //----------------------------------------------------------------------------- | |
112 | ||
113 | // not static because used by textctrl.cpp | |
114 | // | |
115 | // MT-FIXME | |
116 | bool wxIsInsideYield = FALSE; | |
117 | ||
118 | bool wxApp::Yield(bool onlyIfNeeded) | |
119 | { | |
120 | if ( wxIsInsideYield ) | |
121 | { | |
122 | if ( !onlyIfNeeded ) | |
123 | { | |
124 | wxFAIL_MSG( wxT("wxYield called recursively" ) ); | |
125 | } | |
126 | ||
127 | return FALSE; | |
128 | } | |
129 | ||
130 | #if wxUSE_THREADS | |
131 | if ( !wxThread::IsMain() ) | |
132 | { | |
133 | // can't call gtk_main_iteration() from other threads like this | |
134 | return TRUE; | |
135 | } | |
136 | #endif // wxUSE_THREADS | |
137 | ||
138 | wxIsInsideYield = TRUE; | |
139 | ||
140 | if (!g_isIdle) | |
141 | { | |
142 | // We need to remove idle callbacks or the loop will | |
143 | // never finish. | |
144 | gtk_idle_remove( m_idleTag ); | |
145 | m_idleTag = 0; | |
146 | g_isIdle = TRUE; | |
147 | } | |
148 | ||
149 | // disable log flushing from here because a call to wxYield() shouldn't | |
150 | // normally result in message boxes popping up &c | |
151 | wxLog::Suspend(); | |
152 | ||
153 | while (gtk_events_pending()) | |
154 | gtk_main_iteration(); | |
155 | ||
156 | // It's necessary to call ProcessIdle() to update the frames sizes which | |
157 | // might have been changed (it also will update other things set from | |
158 | // OnUpdateUI() which is a nice (and desired) side effect). But we | |
159 | // call ProcessIdle() only once since this is not meant for longish | |
160 | // background jobs (controlled by wxIdleEvent::RequestMore() and the | |
161 | // return value of Processidle(). | |
162 | ProcessIdle(); | |
163 | ||
164 | // let the logs be flashed again | |
165 | wxLog::Resume(); | |
166 | ||
167 | wxIsInsideYield = FALSE; | |
168 | ||
169 | return TRUE; | |
170 | } | |
171 | ||
172 | //----------------------------------------------------------------------------- | |
173 | // wxWakeUpIdle | |
174 | //----------------------------------------------------------------------------- | |
175 | ||
176 | void wxWakeUpIdle() | |
177 | { | |
178 | #if wxUSE_THREADS | |
179 | if (!wxThread::IsMain()) | |
180 | wxMutexGuiEnter(); | |
181 | #endif | |
182 | ||
183 | if (g_isIdle) | |
184 | wxapp_install_idle_handler(); | |
185 | ||
186 | #if wxUSE_THREADS | |
187 | if (!wxThread::IsMain()) | |
188 | wxMutexGuiLeave(); | |
189 | #endif | |
190 | } | |
191 | ||
192 | //----------------------------------------------------------------------------- | |
193 | // local functions | |
194 | //----------------------------------------------------------------------------- | |
195 | ||
196 | // the callback functions must be extern "C" to comply with GTK+ declarations | |
197 | extern "C" | |
198 | { | |
199 | ||
200 | static gint wxapp_pending_callback( gpointer WXUNUSED(data) ) | |
201 | { | |
202 | if (!wxTheApp) return TRUE; | |
203 | ||
204 | // When getting called from GDK's time-out handler | |
205 | // we are no longer within GDK's grab on the GUI | |
206 | // thread so we must lock it here ourselves. | |
207 | gdk_threads_enter(); | |
208 | ||
209 | // Sent idle event to all who request them. | |
210 | wxTheApp->ProcessPendingEvents(); | |
211 | ||
212 | g_pendingTag = 0; | |
213 | ||
214 | // Flush the logged messages if any. | |
215 | #if wxUSE_LOG | |
216 | wxLog::FlushActive(); | |
217 | #endif // wxUSE_LOG | |
218 | ||
219 | // Release lock again | |
220 | gdk_threads_leave(); | |
221 | ||
222 | // Return FALSE to indicate that no more idle events are | |
223 | // to be sent (single shot instead of continuous stream) | |
224 | return FALSE; | |
225 | } | |
226 | ||
227 | static gint wxapp_idle_callback( gpointer WXUNUSED(data) ) | |
228 | { | |
229 | if (!wxTheApp) | |
230 | return TRUE; | |
231 | ||
232 | #ifdef __WXDEBUG__ | |
233 | // don't generate the idle events while the assert modal dialog is shown, | |
234 | // this completely confuses the apps which don't expect to be reentered | |
235 | // from some safely-looking functions | |
236 | if ( wxTheApp->IsInAssert() ) | |
237 | { | |
238 | // But repaint the assertion message if necessary | |
239 | if (wxTopLevelWindows.GetCount() > 0) | |
240 | { | |
241 | wxWindow* win = (wxWindow*) wxTopLevelWindows.GetLast()->GetData(); | |
242 | #ifdef __WXGTK20__ | |
243 | if (win->IsKindOf(CLASSINFO(wxMessageDialog))) | |
244 | #else | |
245 | if (win->IsKindOf(CLASSINFO(wxGenericMessageDialog))) | |
246 | #endif | |
247 | win->OnInternalIdle(); | |
248 | } | |
249 | return TRUE; | |
250 | } | |
251 | #endif // __WXDEBUG__ | |
252 | ||
253 | // When getting called from GDK's time-out handler | |
254 | // we are no longer within GDK's grab on the GUI | |
255 | // thread so we must lock it here ourselves. | |
256 | gdk_threads_enter(); | |
257 | ||
258 | // Indicate that we are now in idle mode and event handlers | |
259 | // will have to reinstall the idle handler again. | |
260 | g_isIdle = TRUE; | |
261 | wxTheApp->m_idleTag = 0; | |
262 | ||
263 | // Send idle event to all who request them as long as | |
264 | // no events have popped up in the event queue. | |
265 | while (wxTheApp->ProcessIdle() && (gtk_events_pending() == 0)) | |
266 | ; | |
267 | ||
268 | // Release lock again | |
269 | gdk_threads_leave(); | |
270 | ||
271 | // Return FALSE to indicate that no more idle events are | |
272 | // to be sent (single shot instead of continuous stream). | |
273 | return FALSE; | |
274 | } | |
275 | ||
276 | #if wxUSE_THREADS | |
277 | ||
278 | #ifdef HAVE_POLL | |
279 | #define wxPoll poll | |
280 | #define wxPollFd pollfd | |
281 | #else // !HAVE_POLL | |
282 | ||
283 | typedef GPollFD wxPollFd; | |
284 | ||
285 | int wxPoll(wxPollFd *ufds, unsigned int nfds, int timeout) | |
286 | { | |
287 | // convert timeout from ms to struct timeval (s/us) | |
288 | timeval tv_timeout; | |
289 | tv_timeout.tv_sec = timeout/1000; | |
290 | tv_timeout.tv_usec = (timeout%1000)*1000; | |
291 | ||
292 | // remember the highest fd used here | |
293 | int fdMax = -1; | |
294 | ||
295 | // and fill the sets for select() | |
296 | fd_set readfds; | |
297 | fd_set writefds; | |
298 | fd_set exceptfds; | |
299 | FD_ZERO(&readfds); | |
300 | FD_ZERO(&writefds); | |
301 | FD_ZERO(&exceptfds); | |
302 | ||
303 | unsigned int i; | |
304 | for ( i = 0; i < nfds; i++ ) | |
305 | { | |
306 | wxASSERT_MSG( ufds[i].fd < FD_SETSIZE, _T("fd out of range") ); | |
307 | ||
308 | if ( ufds[i].events & G_IO_IN ) | |
309 | FD_SET(ufds[i].fd, &readfds); | |
310 | ||
311 | if ( ufds[i].events & G_IO_PRI ) | |
312 | FD_SET(ufds[i].fd, &exceptfds); | |
313 | ||
314 | if ( ufds[i].events & G_IO_OUT ) | |
315 | FD_SET(ufds[i].fd, &writefds); | |
316 | ||
317 | if ( ufds[i].fd > fdMax ) | |
318 | fdMax = ufds[i].fd; | |
319 | } | |
320 | ||
321 | fdMax++; | |
322 | int res = select(fdMax, &readfds, &writefds, &exceptfds, &tv_timeout); | |
323 | ||
324 | // translate the results back | |
325 | for ( i = 0; i < nfds; i++ ) | |
326 | { | |
327 | ufds[i].revents = 0; | |
328 | ||
329 | if ( FD_ISSET(ufds[i].fd, &readfds ) ) | |
330 | ufds[i].revents |= G_IO_IN; | |
331 | ||
332 | if ( FD_ISSET(ufds[i].fd, &exceptfds ) ) | |
333 | ufds[i].revents |= G_IO_PRI; | |
334 | ||
335 | if ( FD_ISSET(ufds[i].fd, &writefds ) ) | |
336 | ufds[i].revents |= G_IO_OUT; | |
337 | } | |
338 | ||
339 | return res; | |
340 | } | |
341 | ||
342 | #endif // HAVE_POLL/!HAVE_POLL | |
343 | ||
344 | static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout ) | |
345 | { | |
346 | gdk_threads_enter(); | |
347 | ||
348 | wxMutexGuiLeave(); | |
349 | g_mainThreadLocked = TRUE; | |
350 | ||
351 | // we rely on the fact that glib GPollFD struct is really just pollfd but | |
352 | // I wonder how wise is this in the long term (VZ) | |
353 | gint res = wxPoll( (wxPollFd *) ufds, nfds, timeout ); | |
354 | ||
355 | wxMutexGuiEnter(); | |
356 | g_mainThreadLocked = FALSE; | |
357 | ||
358 | gdk_threads_leave(); | |
359 | ||
360 | return res; | |
361 | } | |
362 | ||
363 | #endif // wxUSE_THREADS | |
364 | ||
365 | } // extern "C" | |
366 | ||
367 | void wxapp_install_idle_handler() | |
368 | { | |
369 | wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") ); | |
370 | ||
371 | g_isIdle = FALSE; | |
372 | ||
373 | if (g_pendingTag == 0) | |
374 | g_pendingTag = gtk_idle_add_priority( 900, wxapp_pending_callback, (gpointer) NULL ); | |
375 | ||
376 | // This routine gets called by all event handlers | |
377 | // indicating that the idle is over. It may also | |
378 | // get called from other thread for sending events | |
379 | // to the main thread (and processing these in | |
380 | // idle time). Very low priority. | |
381 | wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL ); | |
382 | } | |
383 | ||
384 | //----------------------------------------------------------------------------- | |
385 | // Access to the root window global | |
386 | //----------------------------------------------------------------------------- | |
387 | ||
388 | GtkWidget* wxGetRootWindow() | |
389 | { | |
390 | if (gs_RootWindow == NULL) | |
391 | { | |
392 | gs_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL ); | |
393 | gtk_widget_realize( gs_RootWindow ); | |
394 | } | |
395 | return gs_RootWindow; | |
396 | } | |
397 | ||
398 | //----------------------------------------------------------------------------- | |
399 | // wxApp | |
400 | //----------------------------------------------------------------------------- | |
401 | ||
402 | IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler) | |
403 | ||
404 | BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) | |
405 | EVT_IDLE(wxApp::OnIdle) | |
406 | END_EVENT_TABLE() | |
407 | ||
408 | wxApp::wxApp() | |
409 | { | |
410 | m_initialized = FALSE; | |
411 | #ifdef __WXDEBUG__ | |
412 | m_isInAssert = FALSE; | |
413 | #endif // __WXDEBUG__ | |
414 | ||
415 | m_idleTag = 0; | |
416 | wxapp_install_idle_handler(); | |
417 | ||
418 | #if wxUSE_THREADS | |
419 | g_main_set_poll_func( wxapp_poll_func ); | |
420 | #endif | |
421 | ||
422 | m_colorCube = (unsigned char*) NULL; | |
423 | ||
424 | // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp | |
425 | m_glVisualInfo = (void *) NULL; | |
426 | } | |
427 | ||
428 | wxApp::~wxApp() | |
429 | { | |
430 | if (m_idleTag) gtk_idle_remove( m_idleTag ); | |
431 | ||
432 | if (m_colorCube) free(m_colorCube); | |
433 | } | |
434 | ||
435 | bool wxApp::OnInitGui() | |
436 | { | |
437 | if ( !wxAppBase::OnInitGui() ) | |
438 | return FALSE; | |
439 | ||
440 | GdkVisual *visual = gdk_visual_get_system(); | |
441 | ||
442 | // if this is a wxGLApp (derived from wxApp), and we've already | |
443 | // chosen a specific visual, then derive the GdkVisual from that | |
444 | if (m_glVisualInfo != NULL) | |
445 | { | |
446 | #ifdef __WXGTK20__ | |
447 | // seems gtk_widget_set_default_visual no longer exists? | |
448 | GdkVisual* vis = gtk_widget_get_default_visual(); | |
449 | #else | |
450 | GdkVisual* vis = gdkx_visual_get( | |
451 | ((XVisualInfo *) m_glVisualInfo) ->visualid ); | |
452 | gtk_widget_set_default_visual( vis ); | |
453 | #endif | |
454 | ||
455 | GdkColormap *colormap = gdk_colormap_new( vis, FALSE ); | |
456 | gtk_widget_set_default_colormap( colormap ); | |
457 | ||
458 | visual = vis; | |
459 | } | |
460 | ||
461 | // On some machines, the default visual is just 256 colours, so | |
462 | // we make sure we get the best. This can sometimes be wasteful. | |
463 | ||
464 | else | |
465 | if ((gdk_visual_get_best() != gdk_visual_get_system()) && (m_useBestVisual)) | |
466 | { | |
467 | #ifdef __WXGTK20__ | |
468 | /* seems gtk_widget_set_default_visual no longer exists? */ | |
469 | GdkVisual* vis = gtk_widget_get_default_visual(); | |
470 | #else | |
471 | GdkVisual* vis = gdk_visual_get_best(); | |
472 | gtk_widget_set_default_visual( vis ); | |
473 | #endif | |
474 | ||
475 | GdkColormap *colormap = gdk_colormap_new( vis, FALSE ); | |
476 | gtk_widget_set_default_colormap( colormap ); | |
477 | ||
478 | visual = vis; | |
479 | } | |
480 | ||
481 | // Nothing to do for 15, 16, 24, 32 bit displays | |
482 | if (visual->depth > 8) return TRUE; | |
483 | ||
484 | // initialize color cube for 8-bit color reduction dithering | |
485 | ||
486 | GdkColormap *cmap = gtk_widget_get_default_colormap(); | |
487 | ||
488 | m_colorCube = (unsigned char*)malloc(32 * 32 * 32); | |
489 | ||
490 | for (int r = 0; r < 32; r++) | |
491 | { | |
492 | for (int g = 0; g < 32; g++) | |
493 | { | |
494 | for (int b = 0; b < 32; b++) | |
495 | { | |
496 | int rr = (r << 3) | (r >> 2); | |
497 | int gg = (g << 3) | (g >> 2); | |
498 | int bb = (b << 3) | (b >> 2); | |
499 | ||
500 | int index = -1; | |
501 | ||
502 | GdkColor *colors = cmap->colors; | |
503 | if (colors) | |
504 | { | |
505 | int max = 3 * 65536; | |
506 | ||
507 | for (int i = 0; i < cmap->size; i++) | |
508 | { | |
509 | int rdiff = ((rr << 8) - colors[i].red); | |
510 | int gdiff = ((gg << 8) - colors[i].green); | |
511 | int bdiff = ((bb << 8) - colors[i].blue); | |
512 | int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff); | |
513 | if (sum < max) | |
514 | { | |
515 | index = i; max = sum; | |
516 | } | |
517 | } | |
518 | } | |
519 | else | |
520 | { | |
521 | // assume 8-bit true or static colors. this really exists | |
522 | GdkVisual* vis = gdk_colormap_get_visual( cmap ); | |
523 | index = (r >> (5 - vis->red_prec)) << vis->red_shift; | |
524 | index |= (g >> (5 - vis->green_prec)) << vis->green_shift; | |
525 | index |= (b >> (5 - vis->blue_prec)) << vis->blue_shift; | |
526 | } | |
527 | m_colorCube[ (r*1024) + (g*32) + b ] = index; | |
528 | } | |
529 | } | |
530 | } | |
531 | ||
532 | return TRUE; | |
533 | } | |
534 | ||
535 | GdkVisual *wxApp::GetGdkVisual() | |
536 | { | |
537 | GdkVisual *visual = NULL; | |
538 | ||
539 | if (m_glVisualInfo) | |
540 | visual = gdkx_visual_get( ((XVisualInfo *) m_glVisualInfo)->visualid ); | |
541 | else | |
542 | visual = gdk_window_get_visual( wxGetRootWindow()->window ); | |
543 | ||
544 | wxASSERT( visual ); | |
545 | ||
546 | return visual; | |
547 | } | |
548 | ||
549 | bool wxApp::ProcessIdle() | |
550 | { | |
551 | wxWindowList::Node* node = wxTopLevelWindows.GetFirst(); | |
552 | node = wxTopLevelWindows.GetFirst(); | |
553 | while (node) | |
554 | { | |
555 | wxWindow* win = node->GetData(); | |
556 | CallInternalIdle( win ); | |
557 | ||
558 | node = node->GetNext(); | |
559 | } | |
560 | ||
561 | wxIdleEvent event; | |
562 | event.SetEventObject( this ); | |
563 | ProcessEvent( event ); | |
564 | ||
565 | return event.MoreRequested(); | |
566 | } | |
567 | ||
568 | void wxApp::OnIdle( wxIdleEvent &event ) | |
569 | { | |
570 | static bool s_inOnIdle = FALSE; | |
571 | ||
572 | // Avoid recursion (via ProcessEvent default case) | |
573 | if (s_inOnIdle) | |
574 | return; | |
575 | ||
576 | s_inOnIdle = TRUE; | |
577 | ||
578 | // Resend in the main thread events which have been prepared in other | |
579 | // threads | |
580 | ProcessPendingEvents(); | |
581 | ||
582 | // 'Garbage' collection of windows deleted with Close() | |
583 | DeletePendingObjects(); | |
584 | ||
585 | // Send OnIdle events to all windows | |
586 | bool needMore = SendIdleEvents(); | |
587 | ||
588 | if (needMore) | |
589 | event.RequestMore(TRUE); | |
590 | ||
591 | s_inOnIdle = FALSE; | |
592 | } | |
593 | ||
594 | bool wxApp::SendIdleEvents() | |
595 | { | |
596 | bool needMore = FALSE; | |
597 | ||
598 | wxWindowList::Node* node = wxTopLevelWindows.GetFirst(); | |
599 | while (node) | |
600 | { | |
601 | wxWindow* win = node->GetData(); | |
602 | if (SendIdleEvents(win)) | |
603 | needMore = TRUE; | |
604 | ||
605 | node = node->GetNext(); | |
606 | } | |
607 | ||
608 | return needMore; | |
609 | } | |
610 | ||
611 | bool wxApp::CallInternalIdle( wxWindow* win ) | |
612 | { | |
613 | win->OnInternalIdle(); | |
614 | ||
615 | wxWindowList::Node *node = win->GetChildren().GetFirst(); | |
616 | while (node) | |
617 | { | |
618 | wxWindow *win = node->GetData(); | |
619 | ||
620 | CallInternalIdle( win ); | |
621 | node = node->GetNext(); | |
622 | } | |
623 | ||
624 | return TRUE; | |
625 | } | |
626 | ||
627 | bool wxApp::SendIdleEvents( wxWindow* win ) | |
628 | { | |
629 | bool needMore = FALSE; | |
630 | ||
631 | wxIdleEvent event; | |
632 | event.SetEventObject(win); | |
633 | ||
634 | win->GetEventHandler()->ProcessEvent(event); | |
635 | ||
636 | if (event.MoreRequested()) | |
637 | needMore = TRUE; | |
638 | ||
639 | wxWindowList::Node *node = win->GetChildren().GetFirst(); | |
640 | while (node) | |
641 | { | |
642 | wxWindow *win = node->GetData(); | |
643 | ||
644 | if (SendIdleEvents(win)) | |
645 | needMore = TRUE; | |
646 | node = node->GetNext(); | |
647 | } | |
648 | ||
649 | return needMore; | |
650 | } | |
651 | ||
652 | int wxApp::MainLoop() | |
653 | { | |
654 | gtk_main(); | |
655 | return 0; | |
656 | } | |
657 | ||
658 | void wxApp::ExitMainLoop() | |
659 | { | |
660 | if (gtk_main_level() > 0) | |
661 | gtk_main_quit(); | |
662 | } | |
663 | ||
664 | bool wxApp::Initialized() | |
665 | { | |
666 | return m_initialized; | |
667 | } | |
668 | ||
669 | bool wxApp::Pending() | |
670 | { | |
671 | return (gtk_events_pending() > 0); | |
672 | } | |
673 | ||
674 | void wxApp::Dispatch() | |
675 | { | |
676 | gtk_main_iteration(); | |
677 | } | |
678 | ||
679 | void wxApp::DeletePendingObjects() | |
680 | { | |
681 | wxNode *node = wxPendingDelete.GetFirst(); | |
682 | while (node) | |
683 | { | |
684 | wxObject *obj = (wxObject *)node->GetData(); | |
685 | ||
686 | delete obj; | |
687 | ||
688 | if (wxPendingDelete.Find(obj)) | |
689 | delete node; | |
690 | ||
691 | node = wxPendingDelete.GetFirst(); | |
692 | } | |
693 | } | |
694 | ||
695 | bool wxApp::Initialize() | |
696 | { | |
697 | wxClassInfo::InitializeClasses(); | |
698 | ||
699 | // GL: I'm annoyed ... I don't know where to put this and I don't want to | |
700 | // create a module for that as it's part of the core. | |
701 | #if wxUSE_THREADS | |
702 | wxPendingEvents = new wxList(); | |
703 | wxPendingEventsLocker = new wxCriticalSection(); | |
704 | #endif | |
705 | ||
706 | wxTheColourDatabase = new wxColourDatabase( wxKEY_STRING ); | |
707 | wxTheColourDatabase->Initialize(); | |
708 | ||
709 | wxInitializeStockLists(); | |
710 | wxInitializeStockObjects(); | |
711 | ||
712 | #if wxUSE_WX_RESOURCES | |
713 | wxInitializeResourceSystem(); | |
714 | #endif | |
715 | ||
716 | wxModule::RegisterModules(); | |
717 | if (!wxModule::InitializeModules()) | |
718 | return FALSE; | |
719 | ||
720 | #if wxUSE_INTL | |
721 | wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding()); | |
722 | #endif | |
723 | ||
724 | return TRUE; | |
725 | } | |
726 | ||
727 | void wxApp::CleanUp() | |
728 | { | |
729 | wxModule::CleanUpModules(); | |
730 | ||
731 | #if wxUSE_WX_RESOURCES | |
732 | wxCleanUpResourceSystem(); | |
733 | #endif | |
734 | ||
735 | delete wxTheColourDatabase; | |
736 | wxTheColourDatabase = (wxColourDatabase*) NULL; | |
737 | ||
738 | wxDeleteStockObjects(); | |
739 | ||
740 | wxDeleteStockLists(); | |
741 | ||
742 | delete wxTheApp; | |
743 | wxTheApp = (wxApp*) NULL; | |
744 | ||
745 | wxClassInfo::CleanUpClasses(); | |
746 | ||
747 | #if wxUSE_THREADS | |
748 | delete wxPendingEvents; | |
749 | delete wxPendingEventsLocker; | |
750 | #endif | |
751 | ||
752 | // check for memory leaks | |
753 | #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT | |
754 | if (wxDebugContext::CountObjectsLeft(TRUE) > 0) | |
755 | { | |
756 | wxLogDebug(wxT("There were memory leaks.\n")); | |
757 | wxDebugContext::Dump(); | |
758 | wxDebugContext::PrintStatistics(); | |
759 | } | |
760 | #endif // Debug | |
761 | ||
762 | #if wxUSE_LOG | |
763 | // do this as the very last thing because everything else can log messages | |
764 | wxLog::DontCreateOnDemand(); | |
765 | ||
766 | wxLog *oldLog = wxLog::SetActiveTarget( (wxLog*) NULL ); | |
767 | if (oldLog) | |
768 | delete oldLog; | |
769 | #endif // wxUSE_LOG | |
770 | } | |
771 | ||
772 | //----------------------------------------------------------------------------- | |
773 | // wxEntry | |
774 | //----------------------------------------------------------------------------- | |
775 | ||
776 | // NB: argc and argv may be changed here, pass by reference! | |
777 | int wxEntryStart( int& argc, char *argv[] ) | |
778 | { | |
779 | #if wxUSE_THREADS | |
780 | // GTK 1.2 up to version 1.2.3 has broken threads | |
781 | if ((gtk_major_version == 1) && | |
782 | (gtk_minor_version == 2) && | |
783 | (gtk_micro_version < 4)) | |
784 | { | |
785 | printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" ); | |
786 | } | |
787 | else | |
788 | { | |
789 | g_thread_init(NULL); | |
790 | } | |
791 | #endif | |
792 | ||
793 | gtk_set_locale(); | |
794 | ||
795 | // We should have the wxUSE_WCHAR_T test on the _outside_ | |
796 | #if wxUSE_WCHAR_T | |
797 | #if defined(__WXGTK20__) | |
798 | // gtk+ 2.0 supports Unicode through UTF-8 strings | |
799 | wxConvCurrent = &wxConvUTF8; | |
800 | #else | |
801 | if (!wxOKlibc()) wxConvCurrent = &wxConvLocal; | |
802 | #endif | |
803 | #else | |
804 | if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL; | |
805 | #endif | |
806 | ||
807 | gdk_threads_enter(); | |
808 | ||
809 | gtk_init( &argc, &argv ); | |
810 | ||
811 | wxSetDetectableAutoRepeat( TRUE ); | |
812 | ||
813 | if (!wxApp::Initialize()) | |
814 | { | |
815 | gdk_threads_leave(); | |
816 | return -1; | |
817 | } | |
818 | ||
819 | return 0; | |
820 | } | |
821 | ||
822 | ||
823 | int wxEntryInitGui() | |
824 | { | |
825 | int retValue = 0; | |
826 | ||
827 | if ( !wxTheApp->OnInitGui() ) | |
828 | retValue = -1; | |
829 | ||
830 | wxGetRootWindow(); | |
831 | ||
832 | return retValue; | |
833 | } | |
834 | ||
835 | ||
836 | void wxEntryCleanup() | |
837 | { | |
838 | #if wxUSE_LOG | |
839 | // flush the logged messages if any | |
840 | wxLog *log = wxLog::GetActiveTarget(); | |
841 | if (log != NULL && log->HasPendingMessages()) | |
842 | log->Flush(); | |
843 | ||
844 | // continuing to use user defined log target is unsafe from now on because | |
845 | // some resources may be already unavailable, so replace it by something | |
846 | // more safe | |
847 | wxLog *oldlog = wxLog::SetActiveTarget(new wxLogStderr); | |
848 | if ( oldlog ) | |
849 | delete oldlog; | |
850 | #endif // wxUSE_LOG | |
851 | ||
852 | wxApp::CleanUp(); | |
853 | ||
854 | gdk_threads_leave(); | |
855 | } | |
856 | ||
857 | ||
858 | int wxEntry( int argc, char *argv[] ) | |
859 | { | |
860 | #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT | |
861 | // This seems to be necessary since there are 'rogue' | |
862 | // objects present at this point (perhaps global objects?) | |
863 | // Setting a checkpoint will ignore them as far as the | |
864 | // memory checking facility is concerned. | |
865 | // Of course you may argue that memory allocated in globals should be | |
866 | // checked, but this is a reasonable compromise. | |
867 | wxDebugContext::SetCheckpoint(); | |
868 | #endif | |
869 | int err = wxEntryStart(argc, argv); | |
870 | if (err) | |
871 | return err; | |
872 | ||
873 | if (!wxTheApp) | |
874 | { | |
875 | wxCHECK_MSG( wxApp::GetInitializerFunction(), -1, | |
876 | wxT("wxWindows error: No initializer - use IMPLEMENT_APP macro.\n") ); | |
877 | ||
878 | wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction(); | |
879 | ||
880 | wxObject *test_app = app_ini(); | |
881 | ||
882 | wxTheApp = (wxApp*) test_app; | |
883 | } | |
884 | ||
885 | wxCHECK_MSG( wxTheApp, -1, wxT("wxWindows error: no application object") ); | |
886 | ||
887 | wxTheApp->argc = argc; | |
888 | #if wxUSE_UNICODE | |
889 | wxTheApp->argv = new wxChar*[argc+1]; | |
890 | int mb_argc = 0; | |
891 | while (mb_argc < argc) | |
892 | { | |
893 | wxTheApp->argv[mb_argc] = wxStrdup(wxConvLibc.cMB2WX(argv[mb_argc])); | |
894 | mb_argc++; | |
895 | } | |
896 | wxTheApp->argv[mb_argc] = (wxChar *)NULL; | |
897 | #else | |
898 | wxTheApp->argv = argv; | |
899 | #endif | |
900 | ||
901 | if (wxTheApp->argc > 0) | |
902 | { | |
903 | wxFileName fname( wxTheApp->argv[0] ); | |
904 | wxTheApp->SetAppName( fname.GetName() ); | |
905 | } | |
906 | ||
907 | int retValue; | |
908 | retValue = wxEntryInitGui(); | |
909 | ||
910 | // Here frames insert themselves automatically into wxTopLevelWindows by | |
911 | // getting created in OnInit(). | |
912 | if ( retValue == 0 ) | |
913 | { | |
914 | if ( !wxTheApp->OnInit() ) | |
915 | retValue = -1; | |
916 | } | |
917 | ||
918 | if ( retValue == 0 ) | |
919 | { | |
920 | // Delete pending toplevel windows | |
921 | wxTheApp->DeletePendingObjects(); | |
922 | ||
923 | // When is the app not initialized ? | |
924 | wxTheApp->m_initialized = TRUE; | |
925 | ||
926 | if (wxTheApp->Initialized()) | |
927 | { | |
928 | wxTheApp->OnRun(); | |
929 | ||
930 | wxWindow *topWindow = wxTheApp->GetTopWindow(); | |
931 | ||
932 | // Delete all pending windows if any | |
933 | wxTheApp->DeletePendingObjects(); | |
934 | ||
935 | // Reset top window | |
936 | if (topWindow) | |
937 | wxTheApp->SetTopWindow( (wxWindow*) NULL ); | |
938 | ||
939 | retValue = wxTheApp->OnExit(); | |
940 | } | |
941 | } | |
942 | ||
943 | wxEntryCleanup(); | |
944 | ||
945 | return retValue; | |
946 | } | |
947 | ||
948 | #ifdef __WXDEBUG__ | |
949 | ||
950 | void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxChar *msg) | |
951 | { | |
952 | m_isInAssert = TRUE; | |
953 | ||
954 | wxAppBase::OnAssert(file, line, cond, msg); | |
955 | ||
956 | m_isInAssert = FALSE; | |
957 | } | |
958 | ||
959 | #endif // __WXDEBUG__ | |
960 |