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