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 #if !wxUSE_NANOX
 403     m_visualColormap = NULL;
 404     m_colorCube = NULL;
 405 #endif
 406 }
 407
 408 wxApp::~wxApp()
 409 {
 410 #if !wxUSE_NANOX
 411     if (m_colorCube)
 412         free( m_colorCube );
 413
 414     if (m_visualColormap)
 415         delete [] (XColor*)m_visualColormap;
 416 #endif
 417 }
 418
 419 bool wxApp::Initialized()
 420 {
 421     if (GetTopWindow())
 422         return TRUE;
 423     else
 424         return FALSE;
 425 }
 426
 427 int wxApp::MainLoop()
 428 {
 429     int rt;
 430     m_mainLoop = new wxEventLoop;
 431
 432     rt = m_mainLoop->Run();
 433
 434     delete m_mainLoop;
 435     m_mainLoop = NULL;
 436     return rt;
 437 }
 438
 439 #if !wxUSE_NANOX
 440 //-----------------------------------------------------------------------
 441 // X11 predicate function for exposure compression
 442 //-----------------------------------------------------------------------
 443
 444 struct wxExposeInfo
 445 {
 446     Window window;
 447     Bool found_non_matching;
 448 };
 449
 450 static Bool expose_predicate (Display *display, XEvent *xevent, XPointer arg)
 451 {
 452     wxExposeInfo *info = (wxExposeInfo*) arg;
 453
 454     if (info->found_non_matching)
 455        return FALSE;
 456
 457     if (xevent->xany.type != Expose)
 458     {
 459         info->found_non_matching = TRUE;
 460         return FALSE;
 461     }
 462
 463     if (xevent->xexpose.window != info->window)
 464     {
 465         info->found_non_matching = TRUE;
 466         return FALSE;
 467     }
 468
 469     return TRUE;
 470 }
 471 #endif
 472     // wxUSE_NANOX
 473
 474 //-----------------------------------------------------------------------
 475 // Processes an X event, returning TRUE if the event was processed.
 476 //-----------------------------------------------------------------------
 477
 478 bool wxApp::ProcessXEvent(WXEvent* _event)
 479 {
 480     XEvent* event = (XEvent*) _event;
 481
 482     wxWindow* win = NULL;
 483     Window window = XEventGetWindow(event);
 484 #if 0
 485     Window actualWindow = window;
 486 #endif
 487
 488     // Find the first wxWindow that corresponds to this event window
 489     // Because we're receiving events after a window
 490     // has been destroyed, assume a 1:1 match between
 491     // Window and wxWindow, so if it's not in the table,
 492     // it must have been destroyed.
 493
 494     win = wxGetWindowFromTable(window);
 495     if (!win)
 496     {
 497 #if wxUSE_TWO_WINDOWS
 498         win = wxGetClientWindowFromTable(window);
 499         if (!win)
 500 #endif
 501             return FALSE;
 502     }
 503
 504 #ifdef __WXDEBUG__
 505     wxString windowClass = win->GetClassInfo()->GetClassName();
 506 #endif
 507
 508     switch (event->type)
 509     {
 510         case Expose:
 511         {
 512 #if wxUSE_TWO_WINDOWS && !wxUSE_NANOX
 513             if (event->xexpose.window != (Window)win->GetClientWindow())
 514             {
 515                 XEvent tmp_event;
 516                 wxExposeInfo info;
 517                 info.window = event->xexpose.window;
 518                 info.found_non_matching = FALSE;
 519                 while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, expose_predicate, (XPointer) &info ))
 520                 {
 521                     // Don't worry about optimizing redrawing the border etc.
 522                 }
 523                 win->NeedUpdateNcAreaInIdle();
 524             }
 525             else
 526 #endif
 527             {
 528                 win->GetUpdateRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
 529                                               XExposeEventGetWidth(event), XExposeEventGetHeight(event));
 530                 win->GetClearRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
 531                                          XExposeEventGetWidth(event), XExposeEventGetHeight(event));
 532
 533 #if !wxUSE_NANOX
 534                 XEvent tmp_event;
 535                 wxExposeInfo info;
 536                 info.window = event->xexpose.window;
 537                 info.found_non_matching = FALSE;
 538                 while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, expose_predicate, (XPointer) &info ))
 539                 {
 540                     win->GetUpdateRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
 541                                                   tmp_event.xexpose.width, tmp_event.xexpose.height );
 542
 543                     win->GetClearRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
 544                                                  tmp_event.xexpose.width, tmp_event.xexpose.height );
 545                 }
 546 #endif
 547
 548                 // This simplifies the expose and clear areas to simple
 549                 // rectangles.
 550                 win->GetUpdateRegion() = win->GetUpdateRegion().GetBox();
 551                 win->GetClearRegion() = win->GetClearRegion().GetBox();
 552
 553                 // If we only have one X11 window, always indicate
 554                 // that borders might have to be redrawn.
 555                 if (win->GetMainWindow() == win->GetClientWindow())
 556                     win->NeedUpdateNcAreaInIdle();
 557
 558                 // Only erase background, paint in idle time.
 559                 win->SendEraseEvents();
 560                 // win->Update();
 561             }
 562
 563             return TRUE;
 564         }
 565
 566 #if !wxUSE_NANOX
 567         case GraphicsExpose:
 568         {
 569             printf( "GraphicExpose event\n" );
 570
 571             // wxLogDebug( "GraphicsExpose from %s", win->GetName().c_str(),
 572             //                              event->xgraphicsexpose.x, event->xgraphicsexpose.y,
 573             //                              event->xgraphicsexpose.width, event->xgraphicsexpose.height);
 574
 575             win->GetUpdateRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
 576                                           event->xgraphicsexpose.width, event->xgraphicsexpose.height);
 577
 578             win->GetClearRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
 579                                          event->xgraphicsexpose.width, event->xgraphicsexpose.height);
 580
 581             if (event->xgraphicsexpose.count == 0)
 582             {
 583                 // Only erase background, paint in idle time.
 584                 win->SendEraseEvents();
 585                 // win->Update();
 586             }
 587
 588             return TRUE;
 589         }
 590 #endif
 591
 592         case KeyPress:
 593         {
 594             if (!win->IsEnabled())
 595                 return FALSE;
 596
 597             wxKeyEvent keyEvent(wxEVT_KEY_DOWN);
 598             wxTranslateKeyEvent(keyEvent, win, window, event);
 599
 600             // wxLogDebug( "OnKey from %s", win->GetName().c_str() );
 601
 602             // We didn't process wxEVT_KEY_DOWN, so send wxEVT_CHAR
 603             if (win->GetEventHandler()->ProcessEvent( keyEvent ))
 604                 return TRUE;
 605
 606             keyEvent.SetEventType(wxEVT_CHAR);
 607             if (win->GetEventHandler()->ProcessEvent( keyEvent ))
 608                 return TRUE;
 609
 610             if ( (keyEvent.m_keyCode == WXK_TAB) &&
 611                  win->GetParent() && (win->GetParent()->HasFlag( wxTAB_TRAVERSAL)) )
 612             {
 613                 wxNavigationKeyEvent new_event;
 614                 new_event.SetEventObject( win->GetParent() );
 615                 /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 616                 new_event.SetDirection( (keyEvent.m_keyCode == WXK_TAB) );
 617                 /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 618                 new_event.SetWindowChange( keyEvent.ControlDown() );
 619                 new_event.SetCurrentFocus( win );
 620                 return win->GetParent()->GetEventHandler()->ProcessEvent( new_event );
 621             }
 622
 623             return FALSE;
 624         }
 625         case KeyRelease:
 626         {
 627             if (!win->IsEnabled())
 628                 return FALSE;
 629
 630             wxKeyEvent keyEvent(wxEVT_KEY_UP);
 631             wxTranslateKeyEvent(keyEvent, win, window, event);
 632
 633             return win->GetEventHandler()->ProcessEvent( keyEvent );
 634         }
 635         case ConfigureNotify:
 636         {
 637 #if wxUSE_NANOX
 638             if (event->update.utype == GR_UPDATE_SIZE)
 639 #endif
 640             {
 641                 if (win->IsTopLevel())
 642                 {
 643                     wxTopLevelWindow *tlw = (wxTopLevelWindow*) win;
 644                     tlw->SetConfigureGeometry( XConfigureEventGetX(event), XConfigureEventGetY(event),
 645                         XConfigureEventGetWidth(event), XConfigureEventGetHeight(event) );
 646                 }
 647
 648                 if (win->IsTopLevel() && win->IsShown())
 649                 {
 650                     wxTopLevelWindowX11 *tlw = (wxTopLevelWindowX11 *) win;
 651                     tlw->SetNeedResizeInIdle();
 652                 }
 653                 else
 654                 {
 655                     wxSizeEvent sizeEvent( wxSize(XConfigureEventGetWidth(event), XConfigureEventGetHeight(event)), win->GetId() );
 656                     sizeEvent.SetEventObject( win );
 657
 658                     return win->GetEventHandler()->ProcessEvent( sizeEvent );
 659                 }
 660             }
 661             return FALSE;
 662             break;
 663         }
 664 #if !wxUSE_NANOX
 665         case PropertyNotify:
 666         {
 667             //wxLogDebug("PropertyNotify: %s", windowClass.c_str());
 668             return HandlePropertyChange(_event);
 669         }
 670         case ClientMessage:
 671         {
 672             if (!win->IsEnabled())
 673                 return FALSE;
 674
 675             Atom wm_delete_window = XInternAtom(wxGlobalDisplay(), "WM_DELETE_WINDOW", True);
 676             Atom wm_protocols = XInternAtom(wxGlobalDisplay(), "WM_PROTOCOLS", True);
 677
 678             if (event->xclient.message_type == wm_protocols)
 679             {
 680                 if ((Atom) (event->xclient.data.l[0]) == wm_delete_window)
 681                 {
 682                     win->Close(FALSE);
 683                     return TRUE;
 684                 }
 685             }
 686             return FALSE;
 687         }
 688 #if 0
 689         case DestroyNotify:
 690         {
 691             printf( "destroy from %s\n", win->GetName().c_str() );
 692             break;
 693         }
 694         case CreateNotify:
 695         {
 696             printf( "create from %s\n", win->GetName().c_str() );
 697             break;
 698         }
 699         case MapRequest:
 700         {
 701             printf( "map request from %s\n", win->GetName().c_str() );
 702             break;
 703         }
 704         case ResizeRequest:
 705         {
 706             printf( "resize request from %s\n", win->GetName().c_str() );
 707
 708             Display *disp = (Display*) wxGetDisplay();
 709             XEvent report;
 710
 711             //  to avoid flicker
 712             report = * event;
 713             while( XCheckTypedWindowEvent (disp, actualWindow, ResizeRequest, &report));
 714
 715             wxSize sz = win->GetSize();
 716             wxSizeEvent sizeEvent(sz, win->GetId());
 717             sizeEvent.SetEventObject(win);
 718
 719             return win->GetEventHandler()->ProcessEvent( sizeEvent );
 720         }
 721 #endif
 722 #endif
 723 #if wxUSE_NANOX
 724         case GR_EVENT_TYPE_CLOSE_REQ:
 725         {
 726             if (win)
 727             {
 728                 win->Close(FALSE);
 729                 return TRUE;
 730             }
 731             return FALSE;
 732             break;
 733         }
 734 #endif
 735         case EnterNotify:
 736         case LeaveNotify:
 737         case ButtonPress:
 738         case ButtonRelease:
 739         case MotionNotify:
 740         {
 741             if (!win->IsEnabled())
 742                 return FALSE;
 743
 744             // Here we check if the top level window is
 745             // disabled, which is one aspect of modality.
 746             wxWindow *tlw = win;
 747             while (tlw && !tlw->IsTopLevel())
 748                 tlw = tlw->GetParent();
 749             if (tlw && !tlw->IsEnabled())
 750                 return FALSE;
 751
 752             if (event->type == ButtonPress)
 753             {
 754                 if ((win != wxWindow::FindFocus()) && win->AcceptsFocus())
 755                 {
 756                     // This might actually be done in wxWindow::SetFocus()
 757                     // and not here. TODO.
 758                     g_prevFocus = wxWindow::FindFocus();
 759                     g_nextFocus = win;
 760
 761                     win->SetFocus();
 762                 }
 763             }
 764
 765 #if !wxUSE_NANOX
 766             if (event->type == LeaveNotify || event->type == EnterNotify)
 767             {
 768                 // Throw out NotifyGrab and NotifyUngrab
 769                 if (event->xcrossing.mode != NotifyNormal)
 770                     return FALSE;
 771             }
 772 #endif
 773             wxMouseEvent wxevent;
 774             wxTranslateMouseEvent(wxevent, win, window, event);
 775             return win->GetEventHandler()->ProcessEvent( wxevent );
 776         }
 777         case FocusIn:
 778             {
 779 #if !wxUSE_NANOX
 780                 if ((event->xfocus.detail != NotifyPointer) &&
 781                     (event->xfocus.mode == NotifyNormal))
 782 #endif
 783                 {
 784                     // wxLogDebug( "FocusIn from %s of type %s", win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 785
 786                     wxFocusEvent focusEvent(wxEVT_SET_FOCUS, win->GetId());
 787                     focusEvent.SetEventObject(win);
 788                     focusEvent.SetWindow( g_prevFocus );
 789                     g_prevFocus = NULL;
 790
 791                     return win->GetEventHandler()->ProcessEvent(focusEvent);
 792                 }
 793                 return FALSE;
 794                 break;
 795             }
 796         case FocusOut:
 797             {
 798 #if !wxUSE_NANOX
 799                 if ((event->xfocus.detail != NotifyPointer) &&
 800                     (event->xfocus.mode == NotifyNormal))
 801 #endif
 802                 {
 803                     // wxLogDebug( "FocusOut from %s of type %s", win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 804
 805                     wxFocusEvent focusEvent(wxEVT_KILL_FOCUS, win->GetId());
 806                     focusEvent.SetEventObject(win);
 807                     focusEvent.SetWindow( g_nextFocus );
 808                     g_nextFocus = NULL;
 809                     return win->GetEventHandler()->ProcessEvent(focusEvent);
 810                 }
 811                 return FALSE;
 812                 break;
 813             }
 814         default:
 815         {
 816 #ifdef __WXDEBUG__
 817             //wxString eventName = wxGetXEventName(XEvent& event);
 818             //wxLogDebug(wxT("Event %s not handled"), eventName.c_str());
 819 #endif
 820             return FALSE;
 821             break;
 822         }
 823     }
 824     return FALSE;
 825 }
 826
 827 // Returns TRUE if more time is needed.
 828 // Note that this duplicates wxEventLoopImpl::SendIdleEvent
 829 // but ProcessIdle may be needed by apps, so is kept.
 830 bool wxApp::ProcessIdle()
 831 {
 832     wxIdleEvent event;
 833     event.SetEventObject(this);
 834     ProcessEvent(event);
 835
 836     return event.MoreRequested();
 837 }
 838
 839 void wxApp::ExitMainLoop()
 840 {
 841     if (m_mainLoop)
 842         m_mainLoop->Exit(0);
 843 }
 844
 845 // Is a message/event pending?
 846 bool wxApp::Pending()
 847 {
 848     return wxEventLoop::GetActive()->Pending();
 849 }
 850
 851 // Dispatch a message.
 852 void wxApp::Dispatch()
 853 {
 854     wxEventLoop::GetActive()->Dispatch();
 855 }
 856
 857 // This should be redefined in a derived class for
 858 // handling property change events for XAtom IPC.
 859 bool wxApp::HandlePropertyChange(WXEvent *event)
 860 {
 861     // by default do nothing special
 862     // TODO: what to do for X11
 863     // XtDispatchEvent((XEvent*) event);
 864     return FALSE;
 865 }
 866
 867 void wxApp::OnIdle(wxIdleEvent& event)
 868 {
 869     static bool s_inOnIdle = FALSE;
 870
 871     // Avoid recursion (via ProcessEvent default case)
 872     if (s_inOnIdle)
 873         return;
 874
 875     s_inOnIdle = TRUE;
 876
 877     // Resend in the main thread events which have been prepared in other
 878     // threads
 879     ProcessPendingEvents();
 880
 881     // 'Garbage' collection of windows deleted with Close()
 882     DeletePendingObjects();
 883
 884     // Send OnIdle events to all windows
 885     bool needMore = SendIdleEvents();
 886
 887     if (needMore)
 888         event.RequestMore(TRUE);
 889
 890     s_inOnIdle = FALSE;
 891 }
 892
 893 void wxWakeUpIdle()
 894 {
 895     // **** please implement me! ****
 896     // Wake up the idle handler processor, even if it is in another thread...
 897 }
 898
 899
 900 // Send idle event to all top-level windows
 901 bool wxApp::SendIdleEvents()
 902 {
 903     bool needMore = FALSE;
 904
 905     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
 906     while (node)
 907     {
 908         wxWindow* win = node->GetData();
 909         if (SendIdleEvents(win))
 910             needMore = TRUE;
 911         node = node->GetNext();
 912     }
 913
 914     return needMore;
 915 }
 916
 917 // Send idle event to window and all subwindows
 918 bool wxApp::SendIdleEvents(wxWindow* win)
 919 {
 920     bool needMore = FALSE;
 921
 922     wxIdleEvent event;
 923     event.SetEventObject(win);
 924
 925     win->GetEventHandler()->ProcessEvent(event);
 926
 927     win->OnInternalIdle();
 928
 929     if (event.MoreRequested())
 930         needMore = TRUE;
 931
 932     wxNode* node = win->GetChildren().First();
 933     while (node)
 934     {
 935         wxWindow* win = (wxWindow*) node->Data();
 936         if (SendIdleEvents(win))
 937             needMore = TRUE;
 938
 939         node = node->Next();
 940     }
 941
 942     return needMore;
 943 }
 944
 945 void wxApp::DeletePendingObjects()
 946 {
 947     wxNode *node = wxPendingDelete.First();
 948     while (node)
 949     {
 950         wxObject *obj = (wxObject *)node->Data();
 951
 952         delete obj;
 953
 954         if (wxPendingDelete.Member(obj))
 955             delete node;
 956
 957         // Deleting one object may have deleted other pending
 958         // objects, so start from beginning of list again.
 959         node = wxPendingDelete.First();
 960     }
 961 }
 962
 963 static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
 964 {
 965   *shift = 0;
 966   *prec = 0;
 967
 968   while (!(mask & 0x1))
 969     {
 970       (*shift)++;
 971       mask >>= 1;
 972     }
 973
 974   while (mask & 0x1)
 975     {
 976       (*prec)++;
 977       mask >>= 1;
 978     }
 979 }
 980
 981 // Create display, and other initialization
 982 bool wxApp::OnInitGui()
 983 {
 984     // Eventually this line will be removed, but for
 985     // now we don't want to try popping up a dialog
 986     // for error messages.
 987     delete wxLog::SetActiveTarget(new wxLogStderr);
 988
 989     if (!wxAppBase::OnInitGui())
 990         return FALSE;
 991
 992     GetMainColormap( wxApp::GetDisplay() );
 993
 994     m_maxRequestSize = XMaxRequestSize( (Display*) wxApp::GetDisplay() );
 995
 996 #if !wxUSE_NANOX
 997     // Get info about the current visual. It is enough
 998     // to do this once here unless we support different
 999     // visuals, displays and screens. Given that wxX11
1000     // mostly for embedded things, that is no real
1001     // limitation.
1002     Display *xdisplay = (Display*) wxApp::GetDisplay();
1003     int xscreen = DefaultScreen(xdisplay);
1004     Visual* xvisual = DefaultVisual(xdisplay,xscreen);
1005     int xdepth = DefaultDepth(xdisplay, xscreen);
1006
1007     XVisualInfo vinfo_template;
1008     vinfo_template.visual = xvisual;
1009     vinfo_template.visualid = XVisualIDFromVisual( xvisual );
1010     vinfo_template.depth = xdepth;
1011
1012     int nitem = 0;
1013     XVisualInfo *vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
1014     wxASSERT_MSG( vi, wxT("No visual info") );
1015
1016     m_visualType = vi->visual->c_class;
1017     m_visualScreen = vi->screen;
1018
1019     m_visualRedMask = vi->red_mask;
1020     m_visualGreenMask = vi->green_mask;
1021     m_visualBlueMask = vi->blue_mask;
1022
1023     if (m_visualType != GrayScale && m_visualType != PseudoColor)
1024     {
1025         wxCalcPrecAndShift( m_visualRedMask, &m_visualRedShift, &m_visualRedPrec );
1026         wxCalcPrecAndShift( m_visualGreenMask, &m_visualGreenShift, &m_visualGreenPrec );
1027         wxCalcPrecAndShift( m_visualBlueMask, &m_visualBlueShift, &m_visualBluePrec );
1028     }
1029
1030     m_visualDepth = xdepth;
1031     if (xdepth == 16)
1032         xdepth = m_visualRedPrec + m_visualGreenPrec + m_visualBluePrec;
1033
1034     m_visualColormapSize = vi->colormap_size;
1035
1036     XFree( vi );
1037
1038     if (m_visualDepth > 8)
1039         return TRUE;
1040
1041     m_visualColormap = new XColor[m_visualColormapSize];
1042     XColor* colors = (XColor*) m_visualColormap;
1043
1044     for (int i = 0; i < m_visualColormapSize; i++)
1045             colors[i].pixel = i;
1046
1047     XQueryColors( xdisplay, DefaultColormap(xdisplay,xscreen), colors, m_visualColormapSize );
1048
1049     m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
1050
1051     for (int r = 0; r < 32; r++)
1052     {
1053         for (int g = 0; g < 32; g++)
1054         {
1055             for (int b = 0; b < 32; b++)
1056             {
1057                 int rr = (r << 3) | (r >> 2);
1058                 int gg = (g << 3) | (g >> 2);
1059                 int bb = (b << 3) | (b >> 2);
1060
1061                 int index = -1;
1062
1063                 if (colors)
1064                 {
1065                     int max = 3 * 65536;
1066
1067                     for (int i = 0; i < m_visualColormapSize; i++)
1068                     {
1069                         int rdiff = ((rr << 8) - colors[i].red);
1070                         int gdiff = ((gg << 8) - colors[i].green);
1071                         int bdiff = ((bb << 8) - colors[i].blue);
1072                         int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
1073                         if (sum < max)
1074                         {
1075                             index = i; max = sum;
1076                         }
1077                     }
1078                 }
1079                 else
1080                 {
1081                     // assume 8-bit true or static colors. this really exists
1082                     index = (r >> (5 - m_visualRedPrec)) << m_visualRedShift;
1083                     index |= (g >> (5 - m_visualGreenPrec)) << m_visualGreenShift;
1084                     index |= (b >> (5 - m_visualBluePrec)) << m_visualBlueShift;
1085                 }
1086                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
1087             }
1088         }
1089     }
1090 #endif
1091
1092     return TRUE;
1093 }
1094
1095 WXColormap wxApp::GetMainColormap(WXDisplay* display)
1096 {
1097     if (!display) /* Must be called first with non-NULL display */
1098         return m_mainColormap;
1099
1100     int defaultScreen = DefaultScreen((Display*) display);
1101     Screen* screen = XScreenOfDisplay((Display*) display, defaultScreen);
1102
1103     Colormap c = DefaultColormapOfScreen(screen);
1104
1105     if (!m_mainColormap)
1106         m_mainColormap = (WXColormap) c;
1107
1108     return (WXColormap) c;
1109 }
1110
1111 Window wxGetWindowParent(Window window)
1112 {
1113     wxASSERT_MSG( window, "invalid window" );
1114
1115     return (Window) 0;
1116
1117     Window parent, root = 0;
1118 #if wxUSE_NANOX
1119     int noChildren = 0;
1120 #else
1121     unsigned int noChildren = 0;
1122 #endif
1123     Window* children = NULL;
1124
1125     // #define XQueryTree(d,w,r,p,c,nc)     GrQueryTree(w,p,c,nc)
1126     int res = 1;
1127 #if !wxUSE_NANOX
1128     res =
1129 #endif
1130         XQueryTree((Display*) wxGetDisplay(), window, & root, & parent,
1131              & children, & noChildren);
1132     if (children)
1133         XFree(children);
1134     if (res)
1135         return parent;
1136     else
1137         return (Window) 0;
1138 }
1139
1140 void wxExit()
1141 {
1142     int retValue = 0;
1143     if (wxTheApp)
1144         retValue = wxTheApp->OnExit();
1145
1146     wxApp::CleanUp();
1147     /*
1148     * Exit in some platform-specific way. Not recommended that the app calls this:
1149     * only for emergencies.
1150     */
1151     exit(retValue);
1152 }
1153
1154 // Yield to other processes
1155
1156 bool wxApp::Yield(bool onlyIfNeeded)
1157 {
1158     bool s_inYield = FALSE;
1159
1160     if ( s_inYield )
1161     {
1162         if ( !onlyIfNeeded )
1163         {
1164             wxFAIL_MSG( wxT("wxYield called recursively" ) );
1165         }
1166
1167         return FALSE;
1168     }
1169
1170     s_inYield = TRUE;
1171
1172     // Make sure we have an event loop object,
1173     // or Pending/Dispatch will fail
1174     wxEventLoop* eventLoop = wxEventLoop::GetActive();
1175     wxEventLoop* newEventLoop = NULL;
1176     if (!eventLoop)
1177     {
1178         newEventLoop = new wxEventLoop;
1179         wxEventLoop::SetActive(newEventLoop);
1180     }
1181
1182     while (wxTheApp && wxTheApp->Pending())
1183         wxTheApp->Dispatch();
1184
1185 #if wxUSE_TIMER
1186     wxTimer::NotifyTimers();
1187 #endif
1188     ProcessIdle();
1189
1190     if (newEventLoop)
1191     {
1192         wxEventLoop::SetActive(NULL);
1193         delete newEventLoop;
1194     }
1195
1196     s_inYield = FALSE;
1197
1198     return TRUE;
1199 }
1200
1201 void wxApp::OnAssert(const wxChar *file, int line, const wxChar *msg)
1202 {
1203     // While the GUI isn't working that well, just print out the
1204     // message.
1205 #if 0
1206     wxAppBase::OnAssert(file, line, msg);
1207 #else
1208     wxString msg2;
1209     msg2.Printf("At file %s:%d: %s", file, line, msg);
1210     wxLogDebug(msg2);
1211 #endif
1212 }
1213