src/x11/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.cpp
   3 // Purpose:     wxApp
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13     #pragma implementation "app.h"
  14 #endif
  15
  16 #include "wx/frame.h"
  17 #include "wx/app.h"
  18 #include "wx/utils.h"
  19 #include "wx/gdicmn.h"
  20 #include "wx/icon.h"
  21 #include "wx/dialog.h"
  22 #include "wx/log.h"
  23 #include "wx/module.h"
  24 #include "wx/memory.h"
  25 #include "wx/log.h"
  26 #include "wx/intl.h"
  27 #include "wx/evtloop.h"
  28 #include "wx/timer.h"
  29 #include "wx/filename.h"
  30 #include "wx/hash.h"
  31
  32 #include "wx/univ/theme.h"
  33 #include "wx/univ/renderer.h"
  34
  35 #define ABS(a)     (((a) < 0) ? -(a) : (a))
  36
  37 #if wxUSE_THREADS
  38     #include "wx/thread.h"
  39 #endif
  40
  41 #if wxUSE_WX_RESOURCES
  42     #include "wx/resource.h"
  43 #endif
  44
  45 #include "wx/x11/private.h"
  46
  47 #include <string.h>
  48
  49 //------------------------------------------------------------------------
  50 //   global data
  51 //------------------------------------------------------------------------
  52
  53 extern wxList wxPendingDelete;
  54
  55 wxHashTable *wxWidgetHashTable = NULL;
  56 wxHashTable *wxClientWidgetHashTable = NULL;
  57
  58 wxApp *wxTheApp = NULL;
  59
  60 // This is set within wxEntryStart -- too early on
  61 // to put these in wxTheApp
  62 static bool g_showIconic = FALSE;
  63 static wxSize g_initialSize = wxDefaultSize;
  64
  65 // This is required for wxFocusEvent::SetWindow(). It will only
  66 // work for focus events which we provoke ourselves (by calling
  67 // SetFocus()). It will not work for those events, which X11
  68 // generates itself.
  69 static wxWindow *g_nextFocus = NULL;
  70 static wxWindow *g_prevFocus = NULL;
  71
  72 //------------------------------------------------------------------------
  73 //   X11 error handling
  74 //------------------------------------------------------------------------
  75
  76 #ifdef __WXDEBUG__
  77 typedef int (*XErrorHandlerFunc)(Display *, XErrorEvent *);
  78
  79 XErrorHandlerFunc gs_pfnXErrorHandler = 0;
  80
  81 static int wxXErrorHandler(Display *dpy, XErrorEvent *xevent)
  82 {
  83     // just forward to the default handler for now
  84     if (gs_pfnXErrorHandler)
  85         return gs_pfnXErrorHandler(dpy, xevent);
  86     else
  87         return 0;
  88 }
  89 #endif // __WXDEBUG__
  90
  91 //------------------------------------------------------------------------
  92 //   wxApp
  93 //------------------------------------------------------------------------
  94
  95 long wxApp::sm_lastMessageTime = 0;
  96 WXDisplay *wxApp::ms_display = NULL;
  97
  98 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
  99
 100 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 101     EVT_IDLE(wxApp::OnIdle)
 102 END_EVENT_TABLE()
 103
 104 bool wxApp::Initialize()
 105 {
 106     wxClassInfo::InitializeClasses();
 107
 108 #if wxUSE_INTL
 109     wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
 110 #endif
 111
 112     // GL: I'm annoyed ... I don't know where to put this and I don't want to
 113     // create a module for that as it's part of the core.
 114 #if wxUSE_THREADS
 115     wxPendingEventsLocker = new wxCriticalSection();
 116 #endif
 117
 118     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 119     wxTheColourDatabase->Initialize();
 120
 121     wxInitializeStockLists();
 122     wxInitializeStockObjects();
 123
 124 #if wxUSE_WX_RESOURCES
 125     wxInitializeResourceSystem();
 126 #endif
 127
 128     wxWidgetHashTable = new wxHashTable(wxKEY_INTEGER);
 129     wxClientWidgetHashTable = new wxHashTable(wxKEY_INTEGER);
 130
 131     wxModule::RegisterModules();
 132     if (!wxModule::InitializeModules()) return FALSE;
 133
 134     return TRUE;
 135 }
 136
 137 void wxApp::CleanUp()
 138 {
 139     delete wxWidgetHashTable;
 140     wxWidgetHashTable = NULL;
 141     delete wxClientWidgetHashTable;
 142     wxClientWidgetHashTable = NULL;
 143
 144     wxModule::CleanUpModules();
 145
 146 #if wxUSE_WX_RESOURCES
 147     wxCleanUpResourceSystem();
 148 #endif
 149
 150     delete wxTheColourDatabase;
 151     wxTheColourDatabase = NULL;
 152
 153     wxDeleteStockObjects();
 154
 155     wxDeleteStockLists();
 156
 157     delete wxTheApp;
 158     wxTheApp = NULL;
 159
 160     wxClassInfo::CleanUpClasses();
 161
 162 #if wxUSE_THREADS
 163     delete wxPendingEvents;
 164     delete wxPendingEventsLocker;
 165 #endif
 166
 167 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 168     // At this point we want to check if there are any memory
 169     // blocks that aren't part of the wxDebugContext itself,
 170     // as a special case. Then when dumping we need to ignore
 171     // wxDebugContext, too.
 172     if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
 173     {
 174         wxLogDebug("There were memory leaks.");
 175         wxDebugContext::Dump();
 176         wxDebugContext::PrintStatistics();
 177     }
 178 #endif
 179
 180     // do it as the very last thing because everything else can log messages
 181     wxLog::DontCreateOnDemand();
 182     // do it as the very last thing because everything else can log messages
 183     delete wxLog::SetActiveTarget(NULL);
 184 }
 185
 186 // NB: argc and argv may be changed here, pass by reference!
 187 int wxEntryStart( int& argc, char *argv[] )
 188 {
 189 #ifdef __WXDEBUG__
 190 #if !wxUSE_NANOX
 191     // install the X error handler
 192     gs_pfnXErrorHandler = XSetErrorHandler( wxXErrorHandler );
 193 #endif
 194 #endif // __WXDEBUG__
 195
 196     char *displayName = NULL;
 197     bool syncDisplay = FALSE;
 198
 199     int i;
 200     for (i = 0; i < argc; i++)
 201     {
 202         if (strcmp( argv[i], "-display") == 0)
 203         {
 204             if (i < (argc - 1))
 205             {
 206                 i ++;
 207                 displayName = argv[i];
 208                 continue;
 209             }
 210         }
 211         else if (strcmp( argv[i], "-geometry") == 0)
 212         {
 213             if (i < (argc - 1))
 214             {
 215                 i ++;
 216                 int w, h;
 217                 if (sscanf(argv[i], "%dx%d", &w, &h) != 2)
 218                 {
 219                     wxLogError( _("Invalid geometry specification '%s'"), wxString::FromAscii(argv[i]).c_str() );
 220                 }
 221                 else
 222                 {
 223                     g_initialSize = wxSize(w, h);
 224                 }
 225                 continue;
 226             }
 227         }
 228         else if (strcmp( argv[i], "-sync") == 0)
 229         {
 230             syncDisplay = TRUE;
 231             continue;
 232         }
 233         else if (strcmp( argv[i], "-iconic") == 0)
 234         {
 235             g_showIconic = TRUE;
 236
 237             continue;
 238         }
 239
 240     }
 241
 242     // X11 display stuff
 243     Display* xdisplay = XOpenDisplay( displayName );
 244     if (!xdisplay)
 245     {
 246         wxLogError( _("wxWindows could not open display. Exiting.") );
 247         return -1;
 248     }
 249
 250     if (syncDisplay)
 251         XSynchronize(xdisplay, True);
 252
 253     wxApp::ms_display = (WXDisplay*) xdisplay;
 254
 255     XSelectInput( xdisplay, XDefaultRootWindow(xdisplay), PropertyChangeMask);
 256
 257     // Misc.
 258     wxSetDetectableAutoRepeat( TRUE );
 259
 260 #if wxUSE_UNICODE
 261     // Glib's type system required by Pango
 262     g_type_init();
 263 #endif
 264
 265     if (!wxApp::Initialize())
 266         return -1;
 267
 268     return 0;
 269 }
 270
 271 int wxEntryInitGui()
 272 {
 273     int retValue = 0;
 274
 275     if ( !wxTheApp->OnInitGui() )
 276         retValue = -1;
 277
 278     return retValue;
 279 }
 280
 281
 282 int wxEntry( int argc, char *argv[] )
 283 {
 284 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 285     // This seems to be necessary since there are 'rogue'
 286     // objects present at this point (perhaps global objects?)
 287     // Setting a checkpoint will ignore them as far as the
 288     // memory checking facility is concerned.
 289     // Of course you may argue that memory allocated in globals should be
 290     // checked, but this is a reasonable compromise.
 291     wxDebugContext::SetCheckpoint();
 292 #endif
 293     int err = wxEntryStart(argc, argv);
 294     if (err)
 295         return err;
 296
 297     if (!wxTheApp)
 298     {
 299         if (!wxApp::GetInitializerFunction())
 300         {
 301             printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" );
 302             return 0;
 303         }
 304
 305         wxTheApp = (wxApp*) (* wxApp::GetInitializerFunction()) ();
 306     }
 307
 308     if (!wxTheApp)
 309     {
 310         printf( "wxWindows error: wxTheApp == NULL\n" );
 311         return 0;
 312     }
 313
 314     // Command line argument stuff
 315     wxTheApp->argc = argc;
 316 #if wxUSE_UNICODE
 317     wxTheApp->argv = new wxChar*[argc+1];
 318     int mb_argc = 0;
 319     while (mb_argc < argc)
 320     {
 321         wxString tmp = wxString::FromAscii( argv[mb_argc] );
 322         wxTheApp->argv[mb_argc] = wxStrdup( tmp.c_str() );
 323         mb_argc++;
 324     }
 325     wxTheApp->argv[mb_argc] = (wxChar *)NULL;
 326 #else
 327     wxTheApp->argv = argv;
 328 #endif
 329
 330     if (wxTheApp->argc > 0)
 331     {
 332         wxFileName fname( wxTheApp->argv[0] );
 333         wxTheApp->SetAppName( fname.GetName() );
 334     }
 335
 336     wxTheApp->m_showIconic = g_showIconic;
 337     wxTheApp->m_initialSize = g_initialSize;
 338
 339     int retValue;
 340     retValue = wxEntryInitGui();
 341
 342     // Here frames insert themselves automatically into wxTopLevelWindows by
 343     // getting created in OnInit().
 344     if ( retValue == 0 )
 345     {
 346         if ( !wxTheApp->OnInit() )
 347             retValue = -1;
 348     }
 349
 350     if ( retValue == 0 )
 351     {
 352         if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun();
 353     }
 354
 355     // flush the logged messages if any
 356     wxLog *pLog = wxLog::GetActiveTarget();
 357     if ( pLog != NULL && pLog->HasPendingMessages() )
 358         pLog->Flush();
 359
 360     delete wxLog::SetActiveTarget(new wxLogStderr); // So dialog boxes aren't used
 361     // for further messages
 362
 363     if (wxTheApp->GetTopWindow())
 364     {
 365         delete wxTheApp->GetTopWindow();
 366         wxTheApp->SetTopWindow(NULL);
 367     }
 368
 369     wxTheApp->DeletePendingObjects();
 370
 371     wxTheApp->OnExit();
 372
 373     wxApp::CleanUp();
 374
 375     return retValue;
 376 };
 377
 378 // Static member initialization
 379 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 380
 381 wxApp::wxApp()
 382 {
 383     // TODO: parse the command line
 384     argc = 0;
 385     argv = NULL;
 386
 387     m_mainColormap = (WXColormap) NULL;
 388     m_topLevelWidget = (WXWindow) NULL;
 389     m_maxRequestSize = 0;
 390     m_mainLoop = NULL;
 391     m_showIconic = FALSE;
 392     m_initialSize = wxDefaultSize;
 393
 394 #if !wxUSE_NANOX
 395     m_visualColormap = NULL;
 396     m_colorCube = NULL;
 397 #endif
 398 }
 399
 400 wxApp::~wxApp()
 401 {
 402 #if !wxUSE_NANOX
 403     if (m_colorCube)
 404         free( m_colorCube );
 405
 406     if (m_visualColormap)
 407         delete [] (XColor*)m_visualColormap;
 408 #endif
 409 }
 410
 411 bool wxApp::Initialized()
 412 {
 413     if (GetTopWindow())
 414         return TRUE;
 415     else
 416         return FALSE;
 417 }
 418
 419 int wxApp::MainLoop()
 420 {
 421     int rt;
 422     m_mainLoop = new wxEventLoop;
 423
 424     rt = m_mainLoop->Run();
 425
 426     delete m_mainLoop;
 427     m_mainLoop = NULL;
 428     return rt;
 429 }
 430
 431 #if !wxUSE_NANOX
 432 //-----------------------------------------------------------------------
 433 // X11 predicate function for exposure compression
 434 //-----------------------------------------------------------------------
 435
 436 struct wxExposeInfo
 437 {
 438     Window window;
 439     Bool found_non_matching;
 440 };
 441
 442 static Bool expose_predicate (Display *display, XEvent *xevent, XPointer arg)
 443 {
 444     wxExposeInfo *info = (wxExposeInfo*) arg;
 445
 446     if (info->found_non_matching)
 447        return FALSE;
 448
 449     if (xevent->xany.type != Expose)
 450     {
 451         info->found_non_matching = TRUE;
 452         return FALSE;
 453     }
 454
 455     if (xevent->xexpose.window != info->window)
 456     {
 457         info->found_non_matching = TRUE;
 458         return FALSE;
 459     }
 460
 461     return TRUE;
 462 }
 463 #endif
 464     // wxUSE_NANOX
 465
 466 //-----------------------------------------------------------------------
 467 // Processes an X event, returning TRUE if the event was processed.
 468 //-----------------------------------------------------------------------
 469
 470 bool wxApp::ProcessXEvent(WXEvent* _event)
 471 {
 472     XEvent* event = (XEvent*) _event;
 473
 474     wxWindow* win = NULL;
 475     Window window = XEventGetWindow(event);
 476 #if 0
 477     Window actualWindow = window;
 478 #endif
 479
 480     // Find the first wxWindow that corresponds to this event window
 481     // Because we're receiving events after a window
 482     // has been destroyed, assume a 1:1 match between
 483     // Window and wxWindow, so if it's not in the table,
 484     // it must have been destroyed.
 485
 486     win = wxGetWindowFromTable(window);
 487     if (!win)
 488     {
 489 #if wxUSE_TWO_WINDOWS
 490         win = wxGetClientWindowFromTable(window);
 491         if (!win)
 492 #endif
 493             return FALSE;
 494     }
 495
 496 #ifdef __WXDEBUG__
 497     wxString windowClass = win->GetClassInfo()->GetClassName();
 498 #endif
 499
 500     switch (event->type)
 501     {
 502         case Expose:
 503         {
 504 #if wxUSE_TWO_WINDOWS && !wxUSE_NANOX
 505             if (event->xexpose.window != (Window)win->GetClientAreaWindow())
 506             {
 507                 XEvent tmp_event;
 508                 wxExposeInfo info;
 509                 info.window = event->xexpose.window;
 510                 info.found_non_matching = FALSE;
 511                 while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, expose_predicate, (XPointer) &info ))
 512                 {
 513                     // Don't worry about optimizing redrawing the border etc.
 514                 }
 515                 win->NeedUpdateNcAreaInIdle();
 516             }
 517             else
 518 #endif
 519             {
 520                 win->GetUpdateRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
 521                                               XExposeEventGetWidth(event), XExposeEventGetHeight(event));
 522                 win->GetClearRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
 523                                          XExposeEventGetWidth(event), XExposeEventGetHeight(event));
 524
 525 #if !wxUSE_NANOX
 526                 XEvent tmp_event;
 527                 wxExposeInfo info;
 528                 info.window = event->xexpose.window;
 529                 info.found_non_matching = FALSE;
 530                 while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, expose_predicate, (XPointer) &info ))
 531                 {
 532                     win->GetUpdateRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
 533                                                   tmp_event.xexpose.width, tmp_event.xexpose.height );
 534
 535                     win->GetClearRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
 536                                                  tmp_event.xexpose.width, tmp_event.xexpose.height );
 537                 }
 538 #endif
 539
 540                 // This simplifies the expose and clear areas to simple
 541                 // rectangles.
 542                 win->GetUpdateRegion() = win->GetUpdateRegion().GetBox();
 543                 win->GetClearRegion() = win->GetClearRegion().GetBox();
 544
 545                 // If we only have one X11 window, always indicate
 546                 // that borders might have to be redrawn.
 547                 if (win->GetMainWindow() == win->GetClientAreaWindow())
 548                     win->NeedUpdateNcAreaInIdle();
 549
 550                 // Only erase background, paint in idle time.
 551                 win->SendEraseEvents();
 552                 // win->Update();
 553             }
 554
 555             return TRUE;
 556         }
 557
 558 #if !wxUSE_NANOX
 559         case GraphicsExpose:
 560         {
 561             printf( "GraphicExpose event\n" );
 562
 563             wxLogTrace( _T("expose"), _T("GraphicsExpose from %s"), win->GetName().c_str());
 564
 565             win->GetUpdateRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
 566                                           event->xgraphicsexpose.width, event->xgraphicsexpose.height);
 567
 568             win->GetClearRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
 569                                          event->xgraphicsexpose.width, event->xgraphicsexpose.height);
 570
 571             if (event->xgraphicsexpose.count == 0)
 572             {
 573                 // Only erase background, paint in idle time.
 574                 win->SendEraseEvents();
 575                 // win->Update();
 576             }
 577
 578             return TRUE;
 579         }
 580 #endif
 581
 582         case KeyPress:
 583         {
 584             if (!win->IsEnabled())
 585                 return FALSE;
 586
 587             wxKeyEvent keyEvent(wxEVT_KEY_DOWN);
 588             wxTranslateKeyEvent(keyEvent, win, window, event);
 589
 590             // wxLogDebug( "OnKey from %s", win->GetName().c_str() );
 591
 592             // We didn't process wxEVT_KEY_DOWN, so send wxEVT_CHAR
 593             if (win->GetEventHandler()->ProcessEvent( keyEvent ))
 594                 return TRUE;
 595
 596             keyEvent.SetEventType(wxEVT_CHAR);
 597             // Do the translation again, retaining the ASCII
 598             // code.
 599             wxTranslateKeyEvent(keyEvent, win, window, event, TRUE);
 600             if (win->GetEventHandler()->ProcessEvent( keyEvent ))
 601                 return TRUE;
 602
 603             if ( (keyEvent.m_keyCode == WXK_TAB) &&
 604                  win->GetParent() && (win->GetParent()->HasFlag( wxTAB_TRAVERSAL)) )
 605             {
 606                 wxNavigationKeyEvent new_event;
 607                 new_event.SetEventObject( win->GetParent() );
 608                 /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 609                 new_event.SetDirection( (keyEvent.m_keyCode == WXK_TAB) );
 610                 /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 611                 new_event.SetWindowChange( keyEvent.ControlDown() );
 612                 new_event.SetCurrentFocus( win );
 613                 return win->GetParent()->GetEventHandler()->ProcessEvent( new_event );
 614             }
 615
 616             return FALSE;
 617         }
 618         case KeyRelease:
 619         {
 620             if (!win->IsEnabled())
 621                 return FALSE;
 622
 623             wxKeyEvent keyEvent(wxEVT_KEY_UP);
 624             wxTranslateKeyEvent(keyEvent, win, window, event);
 625
 626             return win->GetEventHandler()->ProcessEvent( keyEvent );
 627         }
 628         case ConfigureNotify:
 629         {
 630 #if wxUSE_NANOX
 631             if (event->update.utype == GR_UPDATE_SIZE)
 632 #endif
 633             {
 634                 if (win->IsTopLevel())
 635                 {
 636                     wxTopLevelWindow *tlw = (wxTopLevelWindow*) win;
 637                     tlw->SetConfigureGeometry( XConfigureEventGetX(event), XConfigureEventGetY(event),
 638                         XConfigureEventGetWidth(event), XConfigureEventGetHeight(event) );
 639                 }
 640
 641                 if (win->IsTopLevel() && win->IsShown())
 642                 {
 643                     wxTopLevelWindowX11 *tlw = (wxTopLevelWindowX11 *) win;
 644                     tlw->SetNeedResizeInIdle();
 645                 }
 646                 else
 647                 {
 648                     wxSizeEvent sizeEvent( wxSize(XConfigureEventGetWidth(event), XConfigureEventGetHeight(event)), win->GetId() );
 649                     sizeEvent.SetEventObject( win );
 650
 651                     return win->GetEventHandler()->ProcessEvent( sizeEvent );
 652                 }
 653             }
 654             return FALSE;
 655             break;
 656         }
 657 #if !wxUSE_NANOX
 658         case PropertyNotify:
 659         {
 660             //wxLogDebug("PropertyNotify: %s", windowClass.c_str());
 661             return HandlePropertyChange(_event);
 662         }
 663         case ClientMessage:
 664         {
 665             if (!win->IsEnabled())
 666                 return FALSE;
 667
 668             Atom wm_delete_window = XInternAtom(wxGlobalDisplay(), "WM_DELETE_WINDOW", True);
 669             Atom wm_protocols = XInternAtom(wxGlobalDisplay(), "WM_PROTOCOLS", True);
 670
 671             if (event->xclient.message_type == wm_protocols)
 672             {
 673                 if ((Atom) (event->xclient.data.l[0]) == wm_delete_window)
 674                 {
 675                     win->Close(FALSE);
 676                     return TRUE;
 677                 }
 678             }
 679             return FALSE;
 680         }
 681 #if 0
 682         case DestroyNotify:
 683         {
 684             printf( "destroy from %s\n", win->GetName().c_str() );
 685             break;
 686         }
 687         case CreateNotify:
 688         {
 689             printf( "create from %s\n", win->GetName().c_str() );
 690             break;
 691         }
 692         case MapRequest:
 693         {
 694             printf( "map request from %s\n", win->GetName().c_str() );
 695             break;
 696         }
 697         case ResizeRequest:
 698         {
 699             printf( "resize request from %s\n", win->GetName().c_str() );
 700
 701             Display *disp = (Display*) wxGetDisplay();
 702             XEvent report;
 703
 704             //  to avoid flicker
 705             report = * event;
 706             while( XCheckTypedWindowEvent (disp, actualWindow, ResizeRequest, &report));
 707
 708             wxSize sz = win->GetSize();
 709             wxSizeEvent sizeEvent(sz, win->GetId());
 710             sizeEvent.SetEventObject(win);
 711
 712             return win->GetEventHandler()->ProcessEvent( sizeEvent );
 713         }
 714 #endif
 715 #endif
 716 #if wxUSE_NANOX
 717         case GR_EVENT_TYPE_CLOSE_REQ:
 718         {
 719             if (win)
 720             {
 721                 win->Close(FALSE);
 722                 return TRUE;
 723             }
 724             return FALSE;
 725             break;
 726         }
 727 #endif
 728         case EnterNotify:
 729         case LeaveNotify:
 730         case ButtonPress:
 731         case ButtonRelease:
 732         case MotionNotify:
 733         {
 734             if (!win->IsEnabled())
 735                 return FALSE;
 736
 737             // Here we check if the top level window is
 738             // disabled, which is one aspect of modality.
 739             wxWindow *tlw = win;
 740             while (tlw && !tlw->IsTopLevel())
 741                 tlw = tlw->GetParent();
 742             if (tlw && !tlw->IsEnabled())
 743                 return FALSE;
 744
 745             if (event->type == ButtonPress)
 746             {
 747                 if ((win != wxWindow::FindFocus()) && win->AcceptsFocus())
 748                 {
 749                     // This might actually be done in wxWindow::SetFocus()
 750                     // and not here. TODO.
 751                     g_prevFocus = wxWindow::FindFocus();
 752                     g_nextFocus = win;
 753
 754                     wxLogTrace( _T("focus"), _T("About to call SetFocus on %s of type %s due to button press"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 755
 756                     // Record the fact that this window is
 757                     // getting the focus, because we'll need to
 758                     // check if its parent is getting a bogus
 759                     // focus and duly ignore it.
 760                     // TODO: may need to have this code in SetFocus, too.
 761                     extern wxWindow* g_GettingFocus;
 762                     g_GettingFocus = win;
 763                     win->SetFocus();
 764                 }
 765             }
 766
 767 #if !wxUSE_NANOX
 768             if (event->type == LeaveNotify || event->type == EnterNotify)
 769             {
 770                 // Throw out NotifyGrab and NotifyUngrab
 771                 if (event->xcrossing.mode != NotifyNormal)
 772                     return FALSE;
 773             }
 774 #endif
 775             wxMouseEvent wxevent;
 776             wxTranslateMouseEvent(wxevent, win, window, event);
 777             return win->GetEventHandler()->ProcessEvent( wxevent );
 778         }
 779         case FocusIn:
 780             {
 781 #if !wxUSE_NANOX
 782                 if ((event->xfocus.detail != NotifyPointer) &&
 783                     (event->xfocus.mode == NotifyNormal))
 784 #endif
 785                 {
 786                     wxLogTrace( _T("focus"), _T("FocusIn from %s of type %s"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 787
 788                     extern wxWindow* g_GettingFocus;
 789                     if (g_GettingFocus && g_GettingFocus->GetParent() == win)
 790                     {
 791                         // Ignore this, this can be a spurious FocusIn
 792                         // caused by a child having its focus set.
 793                         g_GettingFocus = NULL;
 794                         wxLogTrace( _T("focus"), _T("FocusIn from %s of type %s being deliberately ignored"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 795                         return TRUE;
 796                     }
 797                     else
 798                     {
 799                         wxFocusEvent focusEvent(wxEVT_SET_FOCUS, win->GetId());
 800                         focusEvent.SetEventObject(win);
 801                         focusEvent.SetWindow( g_prevFocus );
 802                         g_prevFocus = NULL;
 803
 804                         return win->GetEventHandler()->ProcessEvent(focusEvent);
 805                     }
 806                 }
 807                 return FALSE;
 808                 break;
 809             }
 810         case FocusOut:
 811             {
 812 #if !wxUSE_NANOX
 813                 if ((event->xfocus.detail != NotifyPointer) &&
 814                     (event->xfocus.mode == NotifyNormal))
 815 #endif
 816                 {
 817                     wxLogTrace( _T("focus"), _T("FocusOut from %s of type %s"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 818
 819                     wxFocusEvent focusEvent(wxEVT_KILL_FOCUS, win->GetId());
 820                     focusEvent.SetEventObject(win);
 821                     focusEvent.SetWindow( g_nextFocus );
 822                     g_nextFocus = NULL;
 823                     return win->GetEventHandler()->ProcessEvent(focusEvent);
 824                 }
 825                 return FALSE;
 826                 break;
 827             }
 828         default:
 829         {
 830 #ifdef __WXDEBUG__
 831             //wxString eventName = wxGetXEventName(XEvent& event);
 832             //wxLogDebug(wxT("Event %s not handled"), eventName.c_str());
 833 #endif
 834             return FALSE;
 835             break;
 836         }
 837     }
 838     return FALSE;
 839 }
 840
 841 // Returns TRUE if more time is needed.
 842 // Note that this duplicates wxEventLoopImpl::SendIdleEvent
 843 // but ProcessIdle may be needed by apps, so is kept.
 844 bool wxApp::ProcessIdle()
 845 {
 846     wxIdleEvent event;
 847     event.SetEventObject(this);
 848     ProcessEvent(event);
 849
 850     return event.MoreRequested();
 851 }
 852
 853 void wxApp::ExitMainLoop()
 854 {
 855     if (m_mainLoop)
 856         m_mainLoop->Exit(0);
 857 }
 858
 859 // Is a message/event pending?
 860 bool wxApp::Pending()
 861 {
 862     return wxEventLoop::GetActive()->Pending();
 863 }
 864
 865 // Dispatch a message.
 866 void wxApp::Dispatch()
 867 {
 868     wxEventLoop::GetActive()->Dispatch();
 869 }
 870
 871 // This should be redefined in a derived class for
 872 // handling property change events for XAtom IPC.
 873 bool wxApp::HandlePropertyChange(WXEvent *event)
 874 {
 875     // by default do nothing special
 876     // TODO: what to do for X11
 877     // XtDispatchEvent((XEvent*) event);
 878     return FALSE;
 879 }
 880
 881 void wxApp::OnIdle(wxIdleEvent& event)
 882 {
 883     static bool s_inOnIdle = FALSE;
 884
 885     // Avoid recursion (via ProcessEvent default case)
 886     if (s_inOnIdle)
 887         return;
 888
 889     s_inOnIdle = TRUE;
 890
 891     // Resend in the main thread events which have been prepared in other
 892     // threads
 893     ProcessPendingEvents();
 894
 895     // 'Garbage' collection of windows deleted with Close()
 896     DeletePendingObjects();
 897
 898     // Send OnIdle events to all windows
 899     bool needMore = SendIdleEvents();
 900
 901     if (needMore)
 902         event.RequestMore(TRUE);
 903
 904     s_inOnIdle = FALSE;
 905 }
 906
 907 void wxWakeUpIdle()
 908 {
 909     // **** please implement me! ****
 910     // Wake up the idle handler processor, even if it is in another thread...
 911 }
 912
 913
 914 // Send idle event to all top-level windows
 915 bool wxApp::SendIdleEvents()
 916 {
 917     bool needMore = FALSE;
 918
 919     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
 920     while (node)
 921     {
 922         wxWindow* win = node->GetData();
 923         if (SendIdleEvents(win))
 924             needMore = TRUE;
 925         node = node->GetNext();
 926     }
 927
 928     return needMore;
 929 }
 930
 931 // Send idle event to window and all subwindows
 932 bool wxApp::SendIdleEvents(wxWindow* win)
 933 {
 934     bool needMore = FALSE;
 935
 936     wxIdleEvent event;
 937     event.SetEventObject(win);
 938
 939     win->GetEventHandler()->ProcessEvent(event);
 940
 941     if (event.MoreRequested())
 942         needMore = TRUE;
 943
 944     wxNode* node = win->GetChildren().First();
 945     while (node)
 946     {
 947         wxWindow* win = (wxWindow*) node->Data();
 948         if (SendIdleEvents(win))
 949             needMore = TRUE;
 950
 951         node = node->Next();
 952     }
 953
 954     win->OnInternalIdle();
 955
 956     return needMore;
 957 }
 958
 959 void wxApp::DeletePendingObjects()
 960 {
 961     wxNode *node = wxPendingDelete.First();
 962     while (node)
 963     {
 964         wxObject *obj = (wxObject *)node->Data();
 965
 966         delete obj;
 967
 968         if (wxPendingDelete.Member(obj))
 969             delete node;
 970
 971         // Deleting one object may have deleted other pending
 972         // objects, so start from beginning of list again.
 973         node = wxPendingDelete.First();
 974     }
 975 }
 976
 977 static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
 978 {
 979   *shift = 0;
 980   *prec = 0;
 981
 982   while (!(mask & 0x1))
 983     {
 984       (*shift)++;
 985       mask >>= 1;
 986     }
 987
 988   while (mask & 0x1)
 989     {
 990       (*prec)++;
 991       mask >>= 1;
 992     }
 993 }
 994
 995 // Create display, and other initialization
 996 bool wxApp::OnInitGui()
 997 {
 998     // Eventually this line will be removed, but for
 999     // now we don't want to try popping up a dialog
1000     // for error messages.
1001     delete wxLog::SetActiveTarget(new wxLogStderr);
1002
1003     if (!wxAppBase::OnInitGui())
1004         return FALSE;
1005
1006     GetMainColormap( wxApp::GetDisplay() );
1007
1008     m_maxRequestSize = XMaxRequestSize( (Display*) wxApp::GetDisplay() );
1009
1010 #if !wxUSE_NANOX
1011     // Get info about the current visual. It is enough
1012     // to do this once here unless we support different
1013     // visuals, displays and screens. Given that wxX11
1014     // mostly for embedded things, that is no real
1015     // limitation.
1016     Display *xdisplay = (Display*) wxApp::GetDisplay();
1017     int xscreen = DefaultScreen(xdisplay);
1018     Visual* xvisual = DefaultVisual(xdisplay,xscreen);
1019     int xdepth = DefaultDepth(xdisplay, xscreen);
1020
1021     XVisualInfo vinfo_template;
1022     vinfo_template.visual = xvisual;
1023     vinfo_template.visualid = XVisualIDFromVisual( xvisual );
1024     vinfo_template.depth = xdepth;
1025
1026     int nitem = 0;
1027     XVisualInfo *vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
1028     wxASSERT_MSG( vi, wxT("No visual info") );
1029
1030     m_visualType = vi->visual->c_class;
1031     m_visualScreen = vi->screen;
1032
1033     m_visualRedMask = vi->red_mask;
1034     m_visualGreenMask = vi->green_mask;
1035     m_visualBlueMask = vi->blue_mask;
1036
1037     if (m_visualType != GrayScale && m_visualType != PseudoColor)
1038     {
1039         wxCalcPrecAndShift( m_visualRedMask, &m_visualRedShift, &m_visualRedPrec );
1040         wxCalcPrecAndShift( m_visualGreenMask, &m_visualGreenShift, &m_visualGreenPrec );
1041         wxCalcPrecAndShift( m_visualBlueMask, &m_visualBlueShift, &m_visualBluePrec );
1042     }
1043
1044     m_visualDepth = xdepth;
1045     if (xdepth == 16)
1046         xdepth = m_visualRedPrec + m_visualGreenPrec + m_visualBluePrec;
1047
1048     m_visualColormapSize = vi->colormap_size;
1049
1050     XFree( vi );
1051
1052     if (m_visualDepth > 8)
1053         return TRUE;
1054
1055     m_visualColormap = new XColor[m_visualColormapSize];
1056     XColor* colors = (XColor*) m_visualColormap;
1057
1058     for (int i = 0; i < m_visualColormapSize; i++)
1059             colors[i].pixel = i;
1060
1061     XQueryColors( xdisplay, DefaultColormap(xdisplay,xscreen), colors, m_visualColormapSize );
1062
1063     m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
1064
1065     for (int r = 0; r < 32; r++)
1066     {
1067         for (int g = 0; g < 32; g++)
1068         {
1069             for (int b = 0; b < 32; b++)
1070             {
1071                 int rr = (r << 3) | (r >> 2);
1072                 int gg = (g << 3) | (g >> 2);
1073                 int bb = (b << 3) | (b >> 2);
1074
1075                 int index = -1;
1076
1077                 if (colors)
1078                 {
1079                     int max = 3 * 65536;
1080
1081                     for (int i = 0; i < m_visualColormapSize; i++)
1082                     {
1083                         int rdiff = ((rr << 8) - colors[i].red);
1084                         int gdiff = ((gg << 8) - colors[i].green);
1085                         int bdiff = ((bb << 8) - colors[i].blue);
1086                         int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
1087                         if (sum < max)
1088                         {
1089                             index = i; max = sum;
1090                         }
1091                     }
1092                 }
1093                 else
1094                 {
1095                     // assume 8-bit true or static colors. this really exists
1096                     index = (r >> (5 - m_visualRedPrec)) << m_visualRedShift;
1097                     index |= (g >> (5 - m_visualGreenPrec)) << m_visualGreenShift;
1098                     index |= (b >> (5 - m_visualBluePrec)) << m_visualBlueShift;
1099                 }
1100                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
1101             }
1102         }
1103     }
1104 #endif
1105
1106     return TRUE;
1107 }
1108
1109 #if wxUSE_UNICODE
1110
1111 #include <pango/pango.h>
1112 #include <pango/pangox.h>
1113 #include <pango/pangoxft.h>
1114
1115 PangoContext* wxApp::GetPangoContext()
1116 {
1117     static PangoContext *ret = NULL;
1118     if (ret)
1119         return ret;
1120
1121     Display *xdisplay = (Display*) wxApp::GetDisplay();
1122
1123 #if 1
1124     int xscreen = DefaultScreen(xdisplay);
1125     static int use_xft = -1;
1126     if (use_xft == -1)
1127     {
1128         wxString val = wxGetenv( L"GDK_USE_XFT" );
1129         use_xft = (val == L"1");
1130     }
1131
1132     if (use_xft)
1133         ret = pango_xft_get_context( xdisplay, xscreen );
1134     else
1135 #endif
1136         ret = pango_x_get_context( xdisplay );
1137
1138     if (!PANGO_IS_CONTEXT(ret))
1139         wxLogError( wxT("No pango context.") );
1140
1141     return ret;
1142 }
1143 #endif
1144
1145 WXColormap wxApp::GetMainColormap(WXDisplay* display)
1146 {
1147     if (!display) /* Must be called first with non-NULL display */
1148         return m_mainColormap;
1149
1150     int defaultScreen = DefaultScreen((Display*) display);
1151     Screen* screen = XScreenOfDisplay((Display*) display, defaultScreen);
1152
1153     Colormap c = DefaultColormapOfScreen(screen);
1154
1155     if (!m_mainColormap)
1156         m_mainColormap = (WXColormap) c;
1157
1158     return (WXColormap) c;
1159 }
1160
1161 Window wxGetWindowParent(Window window)
1162 {
1163     wxASSERT_MSG( window, "invalid window" );
1164
1165     return (Window) 0;
1166
1167     Window parent, root = 0;
1168 #if wxUSE_NANOX
1169     int noChildren = 0;
1170 #else
1171     unsigned int noChildren = 0;
1172 #endif
1173     Window* children = NULL;
1174
1175     // #define XQueryTree(d,w,r,p,c,nc)     GrQueryTree(w,p,c,nc)
1176     int res = 1;
1177 #if !wxUSE_NANOX
1178     res =
1179 #endif
1180         XQueryTree((Display*) wxGetDisplay(), window, & root, & parent,
1181              & children, & noChildren);
1182     if (children)
1183         XFree(children);
1184     if (res)
1185         return parent;
1186     else
1187         return (Window) 0;
1188 }
1189
1190 void wxExit()
1191 {
1192     int retValue = 0;
1193     if (wxTheApp)
1194         retValue = wxTheApp->OnExit();
1195
1196     wxApp::CleanUp();
1197     /*
1198     * Exit in some platform-specific way. Not recommended that the app calls this:
1199     * only for emergencies.
1200     */
1201     exit(retValue);
1202 }
1203
1204 // Yield to other processes
1205
1206 bool wxApp::Yield(bool onlyIfNeeded)
1207 {
1208     // Sometimes only 2 yields seem
1209     // to do the trick, e.g. in the
1210     // progress dialog
1211     int i;
1212     for (i = 0; i < 2; i++)
1213     {
1214         bool s_inYield = FALSE;
1215
1216         if ( s_inYield )
1217         {
1218             if ( !onlyIfNeeded )
1219             {
1220                 wxFAIL_MSG( wxT("wxYield called recursively" ) );
1221             }
1222
1223             return FALSE;
1224         }
1225
1226         s_inYield = TRUE;
1227
1228         // Make sure we have an event loop object,
1229         // or Pending/Dispatch will fail
1230         wxEventLoop* eventLoop = wxEventLoop::GetActive();
1231         wxEventLoop* newEventLoop = NULL;
1232         if (!eventLoop)
1233         {
1234             newEventLoop = new wxEventLoop;
1235             wxEventLoop::SetActive(newEventLoop);
1236         }
1237
1238         // Call dispatch at least once so that sockets
1239         // can be tested
1240         wxTheApp->Dispatch();
1241
1242         while (wxTheApp && wxTheApp->Pending())
1243             wxTheApp->Dispatch();
1244
1245 #if wxUSE_TIMER
1246         wxTimer::NotifyTimers();
1247 #endif
1248         ProcessIdle();
1249
1250         if (newEventLoop)
1251         {
1252             wxEventLoop::SetActive(NULL);
1253             delete newEventLoop;
1254         }
1255
1256         s_inYield = FALSE;
1257     }
1258
1259     return TRUE;
1260 }
1261
1262 #ifdef __WXDEBUG__
1263
1264 void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxChar *msg)
1265 {
1266     // While the GUI isn't working that well, just print out the
1267     // message.
1268 #if 1
1269     wxAppBase::OnAssert(file, line, cond, msg);
1270 #else
1271     wxString msg2;
1272     msg2.Printf("At file %s:%d: %s", file, line, msg);
1273     wxLogDebug(msg2);
1274 #endif
1275 }
1276
1277 #endif // __WXDEBUG__
1278