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