| 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 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 11 | #pragma implementation "app.h" |
| 12 | #endif |
| 13 | |
| 14 | #ifdef __VMS |
| 15 | // vms_jackets.h should for proper working be included before anything else |
| 16 | # include <vms_jackets.h> |
| 17 | #undef ConnectionNumber |
| 18 | #endif |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #include "wx/app.h" |
| 24 | #include "wx/gdicmn.h" |
| 25 | #include "wx/utils.h" |
| 26 | #include "wx/intl.h" |
| 27 | #include "wx/log.h" |
| 28 | #include "wx/memory.h" |
| 29 | #include "wx/font.h" |
| 30 | #include "wx/settings.h" |
| 31 | #include "wx/dialog.h" |
| 32 | #include "wx/msgdlg.h" |
| 33 | #include "wx/file.h" |
| 34 | #include "wx/filename.h" |
| 35 | #include "wx/module.h" |
| 36 | #include "wx/image.h" |
| 37 | #include "wx/thread.h" |
| 38 | |
| 39 | #ifdef __WXGPE__ |
| 40 | #include <gpe/init.h> |
| 41 | #endif |
| 42 | |
| 43 | #ifdef __WXUNIVERSAL__ |
| 44 | #include "wx/univ/theme.h" |
| 45 | #include "wx/univ/renderer.h" |
| 46 | #endif |
| 47 | |
| 48 | #if wxUSE_THREADS |
| 49 | #include "wx/thread.h" |
| 50 | #endif |
| 51 | |
| 52 | #include <unistd.h> |
| 53 | |
| 54 | #ifdef HAVE_POLL |
| 55 | #if defined(__VMS) |
| 56 | #include <poll.h> |
| 57 | #else |
| 58 | // bug in the OpenBSD headers: at least in 3.1 there is no extern "C" |
| 59 | // in neither poll.h nor sys/poll.h which results in link errors later |
| 60 | #ifdef __OPENBSD__ |
| 61 | extern "C" |
| 62 | { |
| 63 | #endif |
| 64 | |
| 65 | #include <sys/poll.h> |
| 66 | |
| 67 | #ifdef __OPENBSD__ |
| 68 | }; |
| 69 | #endif |
| 70 | #endif // platform |
| 71 | #else // !HAVE_POLL |
| 72 | // we implement poll() ourselves using select() which is supposed exist in |
| 73 | // all modern Unices |
| 74 | #include <sys/types.h> |
| 75 | #include <sys/time.h> |
| 76 | #include <unistd.h> |
| 77 | #endif // HAVE_POLL/!HAVE_POLL |
| 78 | |
| 79 | #include "wx/gtk/win_gtk.h" |
| 80 | |
| 81 | #include <gtk/gtk.h> |
| 82 | |
| 83 | #if wxUSE_LIBGNOMEPRINT |
| 84 | |
| 85 | #include "wx/html/forcelnk.h" |
| 86 | FORCE_LINK(gnome_print) |
| 87 | |
| 88 | #endif |
| 89 | |
| 90 | //----------------------------------------------------------------------------- |
| 91 | // global data |
| 92 | //----------------------------------------------------------------------------- |
| 93 | |
| 94 | bool g_mainThreadLocked = FALSE; |
| 95 | gint g_pendingTag = 0; |
| 96 | |
| 97 | static GtkWidget *gs_RootWindow = (GtkWidget*) NULL; |
| 98 | |
| 99 | //----------------------------------------------------------------------------- |
| 100 | // idle system |
| 101 | //----------------------------------------------------------------------------- |
| 102 | |
| 103 | extern bool g_isIdle; |
| 104 | |
| 105 | void wxapp_install_idle_handler(); |
| 106 | |
| 107 | #if wxUSE_THREADS |
| 108 | static wxMutex gs_idleTagsMutex; |
| 109 | #endif |
| 110 | |
| 111 | //----------------------------------------------------------------------------- |
| 112 | // wxYield |
| 113 | //----------------------------------------------------------------------------- |
| 114 | |
| 115 | // not static because used by textctrl.cpp |
| 116 | // |
| 117 | // MT-FIXME |
| 118 | bool wxIsInsideYield = FALSE; |
| 119 | |
| 120 | bool wxApp::Yield(bool onlyIfNeeded) |
| 121 | { |
| 122 | if ( wxIsInsideYield ) |
| 123 | { |
| 124 | if ( !onlyIfNeeded ) |
| 125 | { |
| 126 | wxFAIL_MSG( wxT("wxYield called recursively" ) ); |
| 127 | } |
| 128 | |
| 129 | return FALSE; |
| 130 | } |
| 131 | |
| 132 | #if wxUSE_THREADS |
| 133 | if ( !wxThread::IsMain() ) |
| 134 | { |
| 135 | // can't call gtk_main_iteration() from other threads like this |
| 136 | return TRUE; |
| 137 | } |
| 138 | #endif // wxUSE_THREADS |
| 139 | |
| 140 | wxIsInsideYield = TRUE; |
| 141 | |
| 142 | // We need to remove idle callbacks or the loop will |
| 143 | // never finish. |
| 144 | wxTheApp->RemoveIdleTag(); |
| 145 | |
| 146 | // disable log flushing from here because a call to wxYield() shouldn't |
| 147 | // normally result in message boxes popping up &c |
| 148 | wxLog::Suspend(); |
| 149 | |
| 150 | while (gtk_events_pending()) |
| 151 | gtk_main_iteration(); |
| 152 | |
| 153 | // It's necessary to call ProcessIdle() to update the frames sizes which |
| 154 | // might have been changed (it also will update other things set from |
| 155 | // OnUpdateUI() which is a nice (and desired) side effect). But we |
| 156 | // call ProcessIdle() only once since this is not meant for longish |
| 157 | // background jobs (controlled by wxIdleEvent::RequestMore() and the |
| 158 | // return value of Processidle(). |
| 159 | ProcessIdle(); |
| 160 | |
| 161 | // let the logs be flashed again |
| 162 | wxLog::Resume(); |
| 163 | |
| 164 | wxIsInsideYield = FALSE; |
| 165 | |
| 166 | return TRUE; |
| 167 | } |
| 168 | |
| 169 | //----------------------------------------------------------------------------- |
| 170 | // wxWakeUpIdle |
| 171 | //----------------------------------------------------------------------------- |
| 172 | |
| 173 | // RR/KH: The wxMutexGui calls are not needed on GTK2 according to |
| 174 | // the GTK faq, http://www.gtk.org/faq/#AEN500 |
| 175 | // The calls to gdk_threads_enter() and leave() are specifically noted |
| 176 | // as not being necessary. The MutexGui calls are still left in for GTK1. |
| 177 | // Eliminating the MutexGui calls fixes the long-standing "random" lockup |
| 178 | // when using wxPostEvent (which calls WakeUpIdle) from a thread. |
| 179 | |
| 180 | void wxApp::WakeUpIdle() |
| 181 | { |
| 182 | #ifndef __WXGTK20__ |
| 183 | #if wxUSE_THREADS |
| 184 | if (!wxThread::IsMain()) |
| 185 | wxMutexGuiEnter(); |
| 186 | #endif // wxUSE_THREADS_ |
| 187 | #endif // __WXGTK2__ |
| 188 | |
| 189 | wxapp_install_idle_handler(); |
| 190 | |
| 191 | #ifndef __WXGTK20__ |
| 192 | #if wxUSE_THREADS |
| 193 | if (!wxThread::IsMain()) |
| 194 | wxMutexGuiLeave(); |
| 195 | #endif // wxUSE_THREADS_ |
| 196 | #endif // __WXGTK2__ |
| 197 | } |
| 198 | |
| 199 | //----------------------------------------------------------------------------- |
| 200 | // local functions |
| 201 | //----------------------------------------------------------------------------- |
| 202 | |
| 203 | // the callback functions must be extern "C" to comply with GTK+ declarations |
| 204 | extern "C" |
| 205 | { |
| 206 | |
| 207 | static gint wxapp_pending_callback( gpointer WXUNUSED(data) ) |
| 208 | { |
| 209 | if (!wxTheApp) return TRUE; |
| 210 | |
| 211 | // When getting called from GDK's time-out handler |
| 212 | // we are no longer within GDK's grab on the GUI |
| 213 | // thread so we must lock it here ourselves. |
| 214 | gdk_threads_enter(); |
| 215 | |
| 216 | // Sent idle event to all who request them. |
| 217 | wxTheApp->ProcessPendingEvents(); |
| 218 | |
| 219 | { |
| 220 | #if wxUSE_THREADS |
| 221 | wxMutexLocker lock(gs_idleTagsMutex); |
| 222 | #endif |
| 223 | g_pendingTag = 0; |
| 224 | } |
| 225 | |
| 226 | // Flush the logged messages if any. |
| 227 | #if wxUSE_LOG |
| 228 | wxLog::FlushActive(); |
| 229 | #endif // wxUSE_LOG |
| 230 | |
| 231 | // Release lock again |
| 232 | gdk_threads_leave(); |
| 233 | |
| 234 | // Return FALSE to indicate that no more idle events are |
| 235 | // to be sent (single shot instead of continuous stream) |
| 236 | return FALSE; |
| 237 | } |
| 238 | |
| 239 | static gint wxapp_idle_callback( gpointer WXUNUSED(data) ) |
| 240 | { |
| 241 | if (!wxTheApp) |
| 242 | return TRUE; |
| 243 | |
| 244 | #ifdef __WXDEBUG__ |
| 245 | // don't generate the idle events while the assert modal dialog is shown, |
| 246 | // this completely confuses the apps which don't expect to be reentered |
| 247 | // from some safely-looking functions |
| 248 | if ( wxTheApp->IsInAssert() ) |
| 249 | { |
| 250 | // But repaint the assertion message if necessary |
| 251 | if (wxTopLevelWindows.GetCount() > 0) |
| 252 | { |
| 253 | wxWindow* win = (wxWindow*) wxTopLevelWindows.GetLast()->GetData(); |
| 254 | #ifdef __WXGTK20__ |
| 255 | if (win->IsKindOf(CLASSINFO(wxMessageDialog))) |
| 256 | #else |
| 257 | if (win->IsKindOf(CLASSINFO(wxGenericMessageDialog))) |
| 258 | #endif |
| 259 | win->OnInternalIdle(); |
| 260 | } |
| 261 | return TRUE; |
| 262 | } |
| 263 | #endif // __WXDEBUG__ |
| 264 | |
| 265 | // When getting called from GDK's time-out handler |
| 266 | // we are no longer within GDK's grab on the GUI |
| 267 | // thread so we must lock it here ourselves. |
| 268 | gdk_threads_enter(); |
| 269 | |
| 270 | // Indicate that we are now in idle mode and event handlers |
| 271 | // will have to reinstall the idle handler again. |
| 272 | { |
| 273 | #if wxUSE_THREADS |
| 274 | wxMutexLocker lock(gs_idleTagsMutex); |
| 275 | #endif |
| 276 | g_isIdle = TRUE; |
| 277 | wxTheApp->m_idleTag = 0; |
| 278 | } |
| 279 | |
| 280 | // Send idle event to all who request them as long as |
| 281 | // no events have popped up in the event queue. |
| 282 | while (wxTheApp->ProcessIdle() && (gtk_events_pending() == 0)) |
| 283 | ; |
| 284 | |
| 285 | // Release lock again |
| 286 | gdk_threads_leave(); |
| 287 | |
| 288 | // Return FALSE to indicate that no more idle events are |
| 289 | // to be sent (single shot instead of continuous stream). |
| 290 | return FALSE; |
| 291 | } |
| 292 | |
| 293 | #if wxUSE_THREADS |
| 294 | |
| 295 | #ifdef HAVE_POLL |
| 296 | #define wxPoll poll |
| 297 | #define wxPollFd pollfd |
| 298 | #else // !HAVE_POLL |
| 299 | |
| 300 | typedef GPollFD wxPollFd; |
| 301 | |
| 302 | int wxPoll(wxPollFd *ufds, unsigned int nfds, int timeout) |
| 303 | { |
| 304 | // convert timeout from ms to struct timeval (s/us) |
| 305 | timeval tv_timeout; |
| 306 | tv_timeout.tv_sec = timeout/1000; |
| 307 | tv_timeout.tv_usec = (timeout%1000)*1000; |
| 308 | |
| 309 | // remember the highest fd used here |
| 310 | int fdMax = -1; |
| 311 | |
| 312 | // and fill the sets for select() |
| 313 | fd_set readfds; |
| 314 | fd_set writefds; |
| 315 | fd_set exceptfds; |
| 316 | FD_ZERO(&readfds); |
| 317 | FD_ZERO(&writefds); |
| 318 | FD_ZERO(&exceptfds); |
| 319 | |
| 320 | unsigned int i; |
| 321 | for ( i = 0; i < nfds; i++ ) |
| 322 | { |
| 323 | wxASSERT_MSG( ufds[i].fd < FD_SETSIZE, _T("fd out of range") ); |
| 324 | |
| 325 | if ( ufds[i].events & G_IO_IN ) |
| 326 | FD_SET(ufds[i].fd, &readfds); |
| 327 | |
| 328 | if ( ufds[i].events & G_IO_PRI ) |
| 329 | FD_SET(ufds[i].fd, &exceptfds); |
| 330 | |
| 331 | if ( ufds[i].events & G_IO_OUT ) |
| 332 | FD_SET(ufds[i].fd, &writefds); |
| 333 | |
| 334 | if ( ufds[i].fd > fdMax ) |
| 335 | fdMax = ufds[i].fd; |
| 336 | } |
| 337 | |
| 338 | fdMax++; |
| 339 | int res = select(fdMax, &readfds, &writefds, &exceptfds, &tv_timeout); |
| 340 | |
| 341 | // translate the results back |
| 342 | for ( i = 0; i < nfds; i++ ) |
| 343 | { |
| 344 | ufds[i].revents = 0; |
| 345 | |
| 346 | if ( FD_ISSET(ufds[i].fd, &readfds ) ) |
| 347 | ufds[i].revents |= G_IO_IN; |
| 348 | |
| 349 | if ( FD_ISSET(ufds[i].fd, &exceptfds ) ) |
| 350 | ufds[i].revents |= G_IO_PRI; |
| 351 | |
| 352 | if ( FD_ISSET(ufds[i].fd, &writefds ) ) |
| 353 | ufds[i].revents |= G_IO_OUT; |
| 354 | } |
| 355 | |
| 356 | return res; |
| 357 | } |
| 358 | |
| 359 | #endif // HAVE_POLL/!HAVE_POLL |
| 360 | |
| 361 | static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout ) |
| 362 | { |
| 363 | gdk_threads_enter(); |
| 364 | |
| 365 | wxMutexGuiLeave(); |
| 366 | g_mainThreadLocked = TRUE; |
| 367 | |
| 368 | // we rely on the fact that glib GPollFD struct is really just pollfd but |
| 369 | // I wonder how wise is this in the long term (VZ) |
| 370 | gint res = wxPoll( (wxPollFd *) ufds, nfds, timeout ); |
| 371 | |
| 372 | wxMutexGuiEnter(); |
| 373 | g_mainThreadLocked = FALSE; |
| 374 | |
| 375 | gdk_threads_leave(); |
| 376 | |
| 377 | return res; |
| 378 | } |
| 379 | |
| 380 | #endif // wxUSE_THREADS |
| 381 | |
| 382 | } // extern "C" |
| 383 | |
| 384 | void wxapp_install_idle_handler() |
| 385 | { |
| 386 | #if wxUSE_THREADS |
| 387 | wxMutexLocker lock(gs_idleTagsMutex); |
| 388 | #endif |
| 389 | |
| 390 | // Don't install the handler if it's already installed. This test *MUST* |
| 391 | // be done when gs_idleTagsMutex is locked! |
| 392 | if (!g_isIdle) |
| 393 | return; |
| 394 | |
| 395 | // GD: this assert is raised when using the thread sample (which works) |
| 396 | // so the test is probably not so easy. Can widget callbacks be |
| 397 | // triggered from child threads and, if so, for which widgets? |
| 398 | // wxASSERT_MSG( wxThread::IsMain() || gs_WakeUpIdle, wxT("attempt to install idle handler from widget callback in child thread (should be exclusively from wxWakeUpIdle)") ); |
| 399 | |
| 400 | wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") ); |
| 401 | |
| 402 | g_isIdle = FALSE; |
| 403 | |
| 404 | if (g_pendingTag == 0) |
| 405 | g_pendingTag = gtk_idle_add_priority( 900, wxapp_pending_callback, (gpointer) NULL ); |
| 406 | |
| 407 | // This routine gets called by all event handlers |
| 408 | // indicating that the idle is over. It may also |
| 409 | // get called from other thread for sending events |
| 410 | // to the main thread (and processing these in |
| 411 | // idle time). Very low priority. |
| 412 | wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL ); |
| 413 | } |
| 414 | |
| 415 | //----------------------------------------------------------------------------- |
| 416 | // Access to the root window global |
| 417 | //----------------------------------------------------------------------------- |
| 418 | |
| 419 | GtkWidget* wxGetRootWindow() |
| 420 | { |
| 421 | if (gs_RootWindow == NULL) |
| 422 | { |
| 423 | gs_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL ); |
| 424 | gtk_widget_realize( gs_RootWindow ); |
| 425 | } |
| 426 | return gs_RootWindow; |
| 427 | } |
| 428 | |
| 429 | //----------------------------------------------------------------------------- |
| 430 | // wxApp |
| 431 | //----------------------------------------------------------------------------- |
| 432 | |
| 433 | IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler) |
| 434 | |
| 435 | BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) |
| 436 | EVT_IDLE(wxAppBase::OnIdle) |
| 437 | END_EVENT_TABLE() |
| 438 | |
| 439 | wxApp::wxApp() |
| 440 | { |
| 441 | #ifdef __WXDEBUG__ |
| 442 | m_isInAssert = FALSE; |
| 443 | #endif // __WXDEBUG__ |
| 444 | |
| 445 | m_idleTag = 0; |
| 446 | g_isIdle = TRUE; |
| 447 | wxapp_install_idle_handler(); |
| 448 | |
| 449 | #if wxUSE_THREADS |
| 450 | g_main_set_poll_func( wxapp_poll_func ); |
| 451 | #endif |
| 452 | |
| 453 | m_colorCube = (unsigned char*) NULL; |
| 454 | |
| 455 | // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp |
| 456 | m_glVisualInfo = (void *) NULL; |
| 457 | } |
| 458 | |
| 459 | wxApp::~wxApp() |
| 460 | { |
| 461 | if (m_idleTag) gtk_idle_remove( m_idleTag ); |
| 462 | |
| 463 | if (m_colorCube) free(m_colorCube); |
| 464 | } |
| 465 | |
| 466 | bool wxApp::OnInitGui() |
| 467 | { |
| 468 | if ( !wxAppBase::OnInitGui() ) |
| 469 | return FALSE; |
| 470 | |
| 471 | GdkVisual *visual = gdk_visual_get_system(); |
| 472 | |
| 473 | // if this is a wxGLApp (derived from wxApp), and we've already |
| 474 | // chosen a specific visual, then derive the GdkVisual from that |
| 475 | if (m_glVisualInfo != NULL) |
| 476 | { |
| 477 | #ifdef __WXGTK20__ |
| 478 | // seems gtk_widget_set_default_visual no longer exists? |
| 479 | GdkVisual* vis = gtk_widget_get_default_visual(); |
| 480 | #else |
| 481 | GdkVisual* vis = gdkx_visual_get( |
| 482 | ((XVisualInfo *) m_glVisualInfo) ->visualid ); |
| 483 | gtk_widget_set_default_visual( vis ); |
| 484 | #endif |
| 485 | |
| 486 | GdkColormap *colormap = gdk_colormap_new( vis, FALSE ); |
| 487 | gtk_widget_set_default_colormap( colormap ); |
| 488 | |
| 489 | visual = vis; |
| 490 | } |
| 491 | |
| 492 | // On some machines, the default visual is just 256 colours, so |
| 493 | // we make sure we get the best. This can sometimes be wasteful. |
| 494 | |
| 495 | else |
| 496 | if ((gdk_visual_get_best() != gdk_visual_get_system()) && (m_useBestVisual)) |
| 497 | { |
| 498 | #ifdef __WXGTK20__ |
| 499 | /* seems gtk_widget_set_default_visual no longer exists? */ |
| 500 | GdkVisual* vis = gtk_widget_get_default_visual(); |
| 501 | #else |
| 502 | GdkVisual* vis = gdk_visual_get_best(); |
| 503 | gtk_widget_set_default_visual( vis ); |
| 504 | #endif |
| 505 | |
| 506 | GdkColormap *colormap = gdk_colormap_new( vis, FALSE ); |
| 507 | gtk_widget_set_default_colormap( colormap ); |
| 508 | |
| 509 | visual = vis; |
| 510 | } |
| 511 | |
| 512 | // Nothing to do for 15, 16, 24, 32 bit displays |
| 513 | if (visual->depth > 8) return TRUE; |
| 514 | |
| 515 | // initialize color cube for 8-bit color reduction dithering |
| 516 | |
| 517 | GdkColormap *cmap = gtk_widget_get_default_colormap(); |
| 518 | |
| 519 | m_colorCube = (unsigned char*)malloc(32 * 32 * 32); |
| 520 | |
| 521 | for (int r = 0; r < 32; r++) |
| 522 | { |
| 523 | for (int g = 0; g < 32; g++) |
| 524 | { |
| 525 | for (int b = 0; b < 32; b++) |
| 526 | { |
| 527 | int rr = (r << 3) | (r >> 2); |
| 528 | int gg = (g << 3) | (g >> 2); |
| 529 | int bb = (b << 3) | (b >> 2); |
| 530 | |
| 531 | int index = -1; |
| 532 | |
| 533 | GdkColor *colors = cmap->colors; |
| 534 | if (colors) |
| 535 | { |
| 536 | int max = 3 * 65536; |
| 537 | |
| 538 | for (int i = 0; i < cmap->size; i++) |
| 539 | { |
| 540 | int rdiff = ((rr << 8) - colors[i].red); |
| 541 | int gdiff = ((gg << 8) - colors[i].green); |
| 542 | int bdiff = ((bb << 8) - colors[i].blue); |
| 543 | int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff); |
| 544 | if (sum < max) |
| 545 | { |
| 546 | index = i; max = sum; |
| 547 | } |
| 548 | } |
| 549 | } |
| 550 | else |
| 551 | { |
| 552 | // assume 8-bit true or static colors. this really exists |
| 553 | GdkVisual* vis = gdk_colormap_get_visual( cmap ); |
| 554 | index = (r >> (5 - vis->red_prec)) << vis->red_shift; |
| 555 | index |= (g >> (5 - vis->green_prec)) << vis->green_shift; |
| 556 | index |= (b >> (5 - vis->blue_prec)) << vis->blue_shift; |
| 557 | } |
| 558 | m_colorCube[ (r*1024) + (g*32) + b ] = index; |
| 559 | } |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | return TRUE; |
| 564 | } |
| 565 | |
| 566 | GdkVisual *wxApp::GetGdkVisual() |
| 567 | { |
| 568 | GdkVisual *visual = NULL; |
| 569 | |
| 570 | if (m_glVisualInfo) |
| 571 | visual = gdkx_visual_get( ((XVisualInfo *) m_glVisualInfo)->visualid ); |
| 572 | else |
| 573 | visual = gdk_window_get_visual( wxGetRootWindow()->window ); |
| 574 | |
| 575 | wxASSERT( visual ); |
| 576 | |
| 577 | return visual; |
| 578 | } |
| 579 | |
| 580 | bool wxApp::Initialize(int& argc, wxChar **argv) |
| 581 | { |
| 582 | bool init_result; |
| 583 | |
| 584 | #if wxUSE_THREADS |
| 585 | // GTK 1.2 up to version 1.2.3 has broken threads |
| 586 | if ((gtk_major_version == 1) && |
| 587 | (gtk_minor_version == 2) && |
| 588 | (gtk_micro_version < 4)) |
| 589 | { |
| 590 | printf( "wxWidgets warning: GUI threading disabled due to outdated GTK version\n" ); |
| 591 | } |
| 592 | else |
| 593 | { |
| 594 | if (!g_thread_supported()) |
| 595 | g_thread_init(NULL); |
| 596 | } |
| 597 | #endif // wxUSE_THREADS |
| 598 | |
| 599 | gtk_set_locale(); |
| 600 | |
| 601 | // We should have the wxUSE_WCHAR_T test on the _outside_ |
| 602 | #if wxUSE_WCHAR_T |
| 603 | #if defined(__WXGTK20__) |
| 604 | // gtk+ 2.0 supports Unicode through UTF-8 strings |
| 605 | wxConvCurrent = &wxConvUTF8; |
| 606 | #else // GTK 1.x |
| 607 | if (!wxOKlibc()) |
| 608 | wxConvCurrent = &wxConvLocal; |
| 609 | #endif |
| 610 | #else // !wxUSE_WCHAR_T |
| 611 | if (!wxOKlibc()) |
| 612 | wxConvCurrent = (wxMBConv*) NULL; |
| 613 | #endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T |
| 614 | |
| 615 | #if wxUSE_UNICODE |
| 616 | // gtk_init() wants UTF-8, not wchar_t, so convert |
| 617 | int i; |
| 618 | char **argvGTK = new char *[argc + 1]; |
| 619 | for ( i = 0; i < argc; i++ ) |
| 620 | { |
| 621 | argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv[i])); |
| 622 | } |
| 623 | |
| 624 | argvGTK[argc] = NULL; |
| 625 | |
| 626 | int argcGTK = argc; |
| 627 | |
| 628 | #ifdef __WXGPE__ |
| 629 | init_result = true; // is there a _check() version of this? |
| 630 | gpe_application_init( &argcGTK, &argvGTK ); |
| 631 | #else |
| 632 | init_result = gtk_init_check( &argcGTK, &argvGTK ); |
| 633 | #endif |
| 634 | |
| 635 | if ( argcGTK != argc ) |
| 636 | { |
| 637 | // we have to drop the parameters which were consumed by GTK+ |
| 638 | for ( i = 0; i < argcGTK; i++ ) |
| 639 | { |
| 640 | while ( strcmp(wxConvUTF8.cWX2MB(argv[i]), argvGTK[i]) != 0 ) |
| 641 | { |
| 642 | memmove(argv + i, argv + i + 1, argc - i); |
| 643 | } |
| 644 | } |
| 645 | |
| 646 | argc = argcGTK; |
| 647 | } |
| 648 | //else: gtk_init() didn't modify our parameters |
| 649 | |
| 650 | // free our copy |
| 651 | for ( i = 0; i < argcGTK; i++ ) |
| 652 | { |
| 653 | free(argvGTK[i]); |
| 654 | } |
| 655 | |
| 656 | delete [] argvGTK; |
| 657 | #else // !wxUSE_UNICODE |
| 658 | // gtk_init() shouldn't actually change argv itself (just its contents) so |
| 659 | // it's ok to pass pointer to it |
| 660 | init_result = gtk_init_check( &argc, &argv ); |
| 661 | #endif // wxUSE_UNICODE/!wxUSE_UNICODE |
| 662 | |
| 663 | if (!init_result) { |
| 664 | wxLogError(wxT("Unable to initialize gtk, is DISPLAY set properly?")); |
| 665 | return false; |
| 666 | } |
| 667 | |
| 668 | // we can not enter threads before gtk_init is done |
| 669 | gdk_threads_enter(); |
| 670 | |
| 671 | if ( !wxAppBase::Initialize(argc, argv) ) |
| 672 | { |
| 673 | gdk_threads_leave(); |
| 674 | |
| 675 | return false; |
| 676 | } |
| 677 | |
| 678 | wxSetDetectableAutoRepeat( TRUE ); |
| 679 | |
| 680 | #if wxUSE_INTL |
| 681 | wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding()); |
| 682 | #endif |
| 683 | |
| 684 | return true; |
| 685 | } |
| 686 | |
| 687 | void wxApp::CleanUp() |
| 688 | { |
| 689 | gdk_threads_leave(); |
| 690 | |
| 691 | wxAppBase::CleanUp(); |
| 692 | } |
| 693 | |
| 694 | #ifdef __WXDEBUG__ |
| 695 | |
| 696 | void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxChar *msg) |
| 697 | { |
| 698 | m_isInAssert = TRUE; |
| 699 | |
| 700 | wxAppBase::OnAssert(file, line, cond, msg); |
| 701 | |
| 702 | m_isInAssert = FALSE; |
| 703 | } |
| 704 | |
| 705 | #endif // __WXDEBUG__ |
| 706 | |
| 707 | void wxApp::RemoveIdleTag() |
| 708 | { |
| 709 | #if wxUSE_THREADS |
| 710 | wxMutexLocker lock(gs_idleTagsMutex); |
| 711 | #endif |
| 712 | if (!g_isIdle) |
| 713 | { |
| 714 | gtk_idle_remove( wxTheApp->m_idleTag ); |
| 715 | wxTheApp->m_idleTag = 0; |
| 716 | g_isIdle = TRUE; |
| 717 | } |
| 718 | } |