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 #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     if (g_newArgv)
 140         delete[] g_newArgv;
 141     g_newArgv = NULL;
 142
 143     delete wxWidgetHashTable;
 144     wxWidgetHashTable = NULL;
 145     delete wxClientWidgetHashTable;
 146     wxClientWidgetHashTable = NULL;
 147
 148     wxModule::CleanUpModules();
 149
 150 #if wxUSE_WX_RESOURCES
 151     wxCleanUpResourceSystem();
 152 #endif
 153
 154     delete wxTheColourDatabase;
 155     wxTheColourDatabase = NULL;
 156
 157     wxDeleteStockObjects();
 158
 159     wxDeleteStockLists();
 160
 161     delete wxTheApp;
 162     wxTheApp = NULL;
 163
 164     wxClassInfo::CleanUpClasses();
 165
 166 #if wxUSE_THREADS
 167     delete wxPendingEvents;
 168     delete wxPendingEventsLocker;
 169 #endif
 170
 171 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 172     // At this point we want to check if there are any memory
 173     // blocks that aren't part of the wxDebugContext itself,
 174     // as a special case. Then when dumping we need to ignore
 175     // wxDebugContext, too.
 176     if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
 177     {
 178         wxLogDebug("There were memory leaks.");
 179         wxDebugContext::Dump();
 180         wxDebugContext::PrintStatistics();
 181     }
 182 #endif
 183
 184     // do it as the very last thing because everything else can log messages
 185     wxLog::DontCreateOnDemand();
 186     // do it as the very last thing because everything else can log messages
 187     delete wxLog::SetActiveTarget(NULL);
 188 }
 189
 190 // NB: argc and argv may be changed here, pass by reference!
 191 int wxEntryStart( int& argc, char *argv[] )
 192 {
 193 #ifdef __WXDEBUG__
 194 #if !wxUSE_NANOX
 195     // install the X error handler
 196     gs_pfnXErrorHandler = XSetErrorHandler( wxXErrorHandler );
 197 #endif
 198 #endif // __WXDEBUG__
 199
 200     wxString displayName;
 201     bool syncDisplay = FALSE;
 202
 203     // Parse the arguments.
 204     // We can't use wxCmdLineParser or OnInitCmdLine and friends because
 205     // we have to create the Display earlier. If we can find a way to
 206     // use the wxAppBase API then I'll be quite happy to change it.
 207     g_newArgv = new wxChar*[argc];
 208     g_newArgc = 0;
 209     int i;
 210     for (i = 0; i < argc; i++)
 211     {
 212         wxString arg(argv[i]);
 213         if (arg == wxT("-display"))
 214         {
 215             if (i < (argc - 1))
 216             {
 217                 i ++;
 218                 displayName = argv[i];
 219                 continue;
 220             }
 221         }
 222         else if (arg == wxT("-geometry"))
 223         {
 224             if (i < (argc - 1))
 225             {
 226                 i ++;
 227                 wxString windowGeometry = argv[i];
 228                 int w, h;
 229                 if (wxSscanf(windowGeometry.c_str(), _T("%dx%d"), &w, &h) != 2)
 230                 {
 231                     wxLogError(_("Invalid geometry specification '%s'"), windowGeometry.c_str());
 232                 }
 233                 else
 234                 {
 235                     g_initialSize = wxSize(w, h);
 236                 }
 237                 continue;
 238             }
 239         }
 240         else if (arg == wxT("-sync"))
 241         {
 242             syncDisplay = TRUE;
 243             continue;
 244         }
 245         else if (arg == wxT("-iconic"))
 246         {
 247             g_showIconic = TRUE;
 248
 249             continue;
 250         }
 251
 252         // Not eaten by wxWindows, so pass through
 253         g_newArgv[g_newArgc] = argv[i];
 254         g_newArgc ++;
 255     }
 256
 257     Display* xdisplay = NULL;
 258     if (displayName.IsEmpty())
 259         xdisplay = XOpenDisplay(NULL);
 260     else
 261         xdisplay = XOpenDisplay((char*) displayName.c_str());
 262
 263     if (!xdisplay)
 264     {
 265         wxLogError( _("wxWindows could not open display. Exiting.") );
 266         return -1;
 267     }
 268
 269     if (syncDisplay)
 270     {
 271         XSynchronize(xdisplay, True);
 272     }
 273
 274     wxApp::ms_display = (WXDisplay*) xdisplay;
 275
 276     XSelectInput( xdisplay, XDefaultRootWindow(xdisplay), PropertyChangeMask);
 277
 278     wxSetDetectableAutoRepeat( TRUE );
 279
 280     if (!wxApp::Initialize())
 281         return -1;
 282
 283     return 0;
 284 }
 285
 286 int wxEntryInitGui()
 287 {
 288     int retValue = 0;
 289
 290     if ( !wxTheApp->OnInitGui() )
 291         retValue = -1;
 292
 293     return retValue;
 294 }
 295
 296
 297 int wxEntry( int argc, char *argv[] )
 298 {
 299 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 300     // This seems to be necessary since there are 'rogue'
 301     // objects present at this point (perhaps global objects?)
 302     // Setting a checkpoint will ignore them as far as the
 303     // memory checking facility is concerned.
 304     // Of course you may argue that memory allocated in globals should be
 305     // checked, but this is a reasonable compromise.
 306     wxDebugContext::SetCheckpoint();
 307 #endif
 308     int err = wxEntryStart(argc, argv);
 309     if (err)
 310         return err;
 311
 312     if (!wxTheApp)
 313     {
 314         if (!wxApp::GetInitializerFunction())
 315         {
 316             printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" );
 317             return 0;
 318         };
 319
 320         wxTheApp = (wxApp*) (* wxApp::GetInitializerFunction()) ();
 321     };
 322
 323     if (!wxTheApp)
 324     {
 325         printf( "wxWindows error: wxTheApp == NULL\n" );
 326         return 0;
 327     };
 328
 329     wxTheApp->SetClassName(wxFileNameFromPath(argv[0]));
 330     wxTheApp->SetAppName(wxFileNameFromPath(argv[0]));
 331
 332     // The command line may have been changed
 333     // by stripping out -display etc.
 334     if (g_newArgc > 0)
 335     {
 336         wxTheApp->argc = g_newArgc;
 337         wxTheApp->argv = g_newArgv;
 338     }
 339     else
 340     {
 341         wxTheApp->argc = argc;
 342         wxTheApp->argv = argv;
 343     }
 344     wxTheApp->m_showIconic = g_showIconic;
 345     wxTheApp->m_initialSize = g_initialSize;
 346
 347     int retValue;
 348     retValue = wxEntryInitGui();
 349
 350     // Here frames insert themselves automatically into wxTopLevelWindows by
 351     // getting created in OnInit().
 352     if ( retValue == 0 )
 353     {
 354         if ( !wxTheApp->OnInit() )
 355             retValue = -1;
 356     }
 357
 358     if ( retValue == 0 )
 359     {
 360         if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun();
 361     }
 362
 363     // flush the logged messages if any
 364     wxLog *pLog = wxLog::GetActiveTarget();
 365     if ( pLog != NULL && pLog->HasPendingMessages() )
 366         pLog->Flush();
 367
 368     delete wxLog::SetActiveTarget(new wxLogStderr); // So dialog boxes aren't used
 369     // for further messages
 370
 371     if (wxTheApp->GetTopWindow())
 372     {
 373         delete wxTheApp->GetTopWindow();
 374         wxTheApp->SetTopWindow(NULL);
 375     }
 376
 377     wxTheApp->DeletePendingObjects();
 378
 379     wxTheApp->OnExit();
 380
 381     wxApp::CleanUp();
 382
 383     return retValue;
 384 };
 385
 386 // Static member initialization
 387 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 388
 389 wxApp::wxApp()
 390 {
 391     // TODO: parse the command line
 392     argc = 0;
 393     argv = NULL;
 394
 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->GetClientAreaWindow())
 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->GetClientAreaWindow())
 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             wxLogTrace( _T("expose"), _T("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                     wxLogTrace( _T("focus"), _T("About to call SetFocus on %s of type %s due to button press"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 762
 763                     // Record the fact that this window is
 764                     // getting the focus, because we'll need to
 765                     // check if its parent is getting a bogus
 766                     // focus and duly ignore it.
 767                     // TODO: may need to have this code in SetFocus, too.
 768                     extern wxWindow* g_GettingFocus;
 769                     g_GettingFocus = win;
 770                     win->SetFocus();
 771                 }
 772             }
 773
 774 #if !wxUSE_NANOX
 775             if (event->type == LeaveNotify || event->type == EnterNotify)
 776             {
 777                 // Throw out NotifyGrab and NotifyUngrab
 778                 if (event->xcrossing.mode != NotifyNormal)
 779                     return FALSE;
 780             }
 781 #endif
 782             wxMouseEvent wxevent;
 783             wxTranslateMouseEvent(wxevent, win, window, event);
 784             return win->GetEventHandler()->ProcessEvent( wxevent );
 785         }
 786         case FocusIn:
 787             {
 788 #if !wxUSE_NANOX
 789                 if ((event->xfocus.detail != NotifyPointer) &&
 790                     (event->xfocus.mode == NotifyNormal))
 791 #endif
 792                 {
 793                     wxLogTrace( _T("focus"), _T("FocusIn from %s of type %s"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 794
 795                     extern wxWindow* g_GettingFocus;
 796                     if (g_GettingFocus && g_GettingFocus->GetParent() == win)
 797                     {
 798                         // Ignore this, this can be a spurious FocusIn
 799                         // caused by a child having its focus set.
 800                         g_GettingFocus = NULL;
 801                         wxLogTrace( _T("focus"), _T("FocusIn from %s of type %s being deliberately ignored"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 802                         return TRUE;
 803                     }
 804                     else
 805                     {
 806                         wxFocusEvent focusEvent(wxEVT_SET_FOCUS, win->GetId());
 807                         focusEvent.SetEventObject(win);
 808                         focusEvent.SetWindow( g_prevFocus );
 809                         g_prevFocus = NULL;
 810
 811                         return win->GetEventHandler()->ProcessEvent(focusEvent);
 812                     }
 813                 }
 814                 return FALSE;
 815                 break;
 816             }
 817         case FocusOut:
 818             {
 819 #if !wxUSE_NANOX
 820                 if ((event->xfocus.detail != NotifyPointer) &&
 821                     (event->xfocus.mode == NotifyNormal))
 822 #endif
 823                 {
 824                     wxLogTrace( _T("focus"), _T("FocusOut from %s of type %s"), win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 825
 826                     wxFocusEvent focusEvent(wxEVT_KILL_FOCUS, win->GetId());
 827                     focusEvent.SetEventObject(win);
 828                     focusEvent.SetWindow( g_nextFocus );
 829                     g_nextFocus = NULL;
 830                     return win->GetEventHandler()->ProcessEvent(focusEvent);
 831                 }
 832                 return FALSE;
 833                 break;
 834             }
 835         default:
 836         {
 837 #ifdef __WXDEBUG__
 838             //wxString eventName = wxGetXEventName(XEvent& event);
 839             //wxLogDebug(wxT("Event %s not handled"), eventName.c_str());
 840 #endif
 841             return FALSE;
 842             break;
 843         }
 844     }
 845     return FALSE;
 846 }
 847
 848 // Returns TRUE if more time is needed.
 849 // Note that this duplicates wxEventLoopImpl::SendIdleEvent
 850 // but ProcessIdle may be needed by apps, so is kept.
 851 bool wxApp::ProcessIdle()
 852 {
 853     wxIdleEvent event;
 854     event.SetEventObject(this);
 855     ProcessEvent(event);
 856
 857     return event.MoreRequested();
 858 }
 859
 860 void wxApp::ExitMainLoop()
 861 {
 862     if (m_mainLoop)
 863         m_mainLoop->Exit(0);
 864 }
 865
 866 // Is a message/event pending?
 867 bool wxApp::Pending()
 868 {
 869     return wxEventLoop::GetActive()->Pending();
 870 }
 871
 872 // Dispatch a message.
 873 void wxApp::Dispatch()
 874 {
 875     wxEventLoop::GetActive()->Dispatch();
 876 }
 877
 878 // This should be redefined in a derived class for
 879 // handling property change events for XAtom IPC.
 880 bool wxApp::HandlePropertyChange(WXEvent *event)
 881 {
 882     // by default do nothing special
 883     // TODO: what to do for X11
 884     // XtDispatchEvent((XEvent*) event);
 885     return FALSE;
 886 }
 887
 888 void wxApp::OnIdle(wxIdleEvent& event)
 889 {
 890     static bool s_inOnIdle = FALSE;
 891
 892     // Avoid recursion (via ProcessEvent default case)
 893     if (s_inOnIdle)
 894         return;
 895
 896     s_inOnIdle = TRUE;
 897
 898     // Resend in the main thread events which have been prepared in other
 899     // threads
 900     ProcessPendingEvents();
 901
 902     // 'Garbage' collection of windows deleted with Close()
 903     DeletePendingObjects();
 904
 905     // Send OnIdle events to all windows
 906     bool needMore = SendIdleEvents();
 907
 908     if (needMore)
 909         event.RequestMore(TRUE);
 910
 911     s_inOnIdle = FALSE;
 912 }
 913
 914 void wxWakeUpIdle()
 915 {
 916     // **** please implement me! ****
 917     // Wake up the idle handler processor, even if it is in another thread...
 918 }
 919
 920
 921 // Send idle event to all top-level windows
 922 bool wxApp::SendIdleEvents()
 923 {
 924     bool needMore = FALSE;
 925
 926     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
 927     while (node)
 928     {
 929         wxWindow* win = node->GetData();
 930         if (SendIdleEvents(win))
 931             needMore = TRUE;
 932         node = node->GetNext();
 933     }
 934
 935     return needMore;
 936 }
 937
 938 // Send idle event to window and all subwindows
 939 bool wxApp::SendIdleEvents(wxWindow* win)
 940 {
 941     bool needMore = FALSE;
 942
 943     wxIdleEvent event;
 944     event.SetEventObject(win);
 945
 946     win->GetEventHandler()->ProcessEvent(event);
 947
 948     if (event.MoreRequested())
 949         needMore = TRUE;
 950
 951     wxNode* node = win->GetChildren().First();
 952     while (node)
 953     {
 954         wxWindow* win = (wxWindow*) node->Data();
 955         if (SendIdleEvents(win))
 956             needMore = TRUE;
 957
 958         node = node->Next();
 959     }
 960
 961     win->OnInternalIdle();
 962
 963     return needMore;
 964 }
 965
 966 void wxApp::DeletePendingObjects()
 967 {
 968     wxNode *node = wxPendingDelete.First();
 969     while (node)
 970     {
 971         wxObject *obj = (wxObject *)node->Data();
 972
 973         delete obj;
 974
 975         if (wxPendingDelete.Member(obj))
 976             delete node;
 977
 978         // Deleting one object may have deleted other pending
 979         // objects, so start from beginning of list again.
 980         node = wxPendingDelete.First();
 981     }
 982 }
 983
 984 static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
 985 {
 986   *shift = 0;
 987   *prec = 0;
 988
 989   while (!(mask & 0x1))
 990     {
 991       (*shift)++;
 992       mask >>= 1;
 993     }
 994
 995   while (mask & 0x1)
 996     {
 997       (*prec)++;
 998       mask >>= 1;
 999     }
1000 }
1001
1002 // Create display, and other initialization
1003 bool wxApp::OnInitGui()
1004 {
1005     // Eventually this line will be removed, but for
1006     // now we don't want to try popping up a dialog
1007     // for error messages.
1008     delete wxLog::SetActiveTarget(new wxLogStderr);
1009
1010     if (!wxAppBase::OnInitGui())
1011         return FALSE;
1012
1013     GetMainColormap( wxApp::GetDisplay() );
1014
1015     m_maxRequestSize = XMaxRequestSize( (Display*) wxApp::GetDisplay() );
1016
1017 #if !wxUSE_NANOX
1018     // Get info about the current visual. It is enough
1019     // to do this once here unless we support different
1020     // visuals, displays and screens. Given that wxX11
1021     // mostly for embedded things, that is no real
1022     // limitation.
1023     Display *xdisplay = (Display*) wxApp::GetDisplay();
1024     int xscreen = DefaultScreen(xdisplay);
1025     Visual* xvisual = DefaultVisual(xdisplay,xscreen);
1026     int xdepth = DefaultDepth(xdisplay, xscreen);
1027
1028     XVisualInfo vinfo_template;
1029     vinfo_template.visual = xvisual;
1030     vinfo_template.visualid = XVisualIDFromVisual( xvisual );
1031     vinfo_template.depth = xdepth;
1032
1033     int nitem = 0;
1034     XVisualInfo *vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
1035     wxASSERT_MSG( vi, wxT("No visual info") );
1036
1037     m_visualType = vi->visual->c_class;
1038     m_visualScreen = vi->screen;
1039
1040     m_visualRedMask = vi->red_mask;
1041     m_visualGreenMask = vi->green_mask;
1042     m_visualBlueMask = vi->blue_mask;
1043
1044     if (m_visualType != GrayScale && m_visualType != PseudoColor)
1045     {
1046         wxCalcPrecAndShift( m_visualRedMask, &m_visualRedShift, &m_visualRedPrec );
1047         wxCalcPrecAndShift( m_visualGreenMask, &m_visualGreenShift, &m_visualGreenPrec );
1048         wxCalcPrecAndShift( m_visualBlueMask, &m_visualBlueShift, &m_visualBluePrec );
1049     }
1050
1051     m_visualDepth = xdepth;
1052     if (xdepth == 16)
1053         xdepth = m_visualRedPrec + m_visualGreenPrec + m_visualBluePrec;
1054
1055     m_visualColormapSize = vi->colormap_size;
1056
1057     XFree( vi );
1058
1059     if (m_visualDepth > 8)
1060         return TRUE;
1061
1062     m_visualColormap = new XColor[m_visualColormapSize];
1063     XColor* colors = (XColor*) m_visualColormap;
1064
1065     for (int i = 0; i < m_visualColormapSize; i++)
1066             colors[i].pixel = i;
1067
1068     XQueryColors( xdisplay, DefaultColormap(xdisplay,xscreen), colors, m_visualColormapSize );
1069
1070     m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
1071
1072     for (int r = 0; r < 32; r++)
1073     {
1074         for (int g = 0; g < 32; g++)
1075         {
1076             for (int b = 0; b < 32; b++)
1077             {
1078                 int rr = (r << 3) | (r >> 2);
1079                 int gg = (g << 3) | (g >> 2);
1080                 int bb = (b << 3) | (b >> 2);
1081
1082                 int index = -1;
1083
1084                 if (colors)
1085                 {
1086                     int max = 3 * 65536;
1087
1088                     for (int i = 0; i < m_visualColormapSize; i++)
1089                     {
1090                         int rdiff = ((rr << 8) - colors[i].red);
1091                         int gdiff = ((gg << 8) - colors[i].green);
1092                         int bdiff = ((bb << 8) - colors[i].blue);
1093                         int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
1094                         if (sum < max)
1095                         {
1096                             index = i; max = sum;
1097                         }
1098                     }
1099                 }
1100                 else
1101                 {
1102                     // assume 8-bit true or static colors. this really exists
1103                     index = (r >> (5 - m_visualRedPrec)) << m_visualRedShift;
1104                     index |= (g >> (5 - m_visualGreenPrec)) << m_visualGreenShift;
1105                     index |= (b >> (5 - m_visualBluePrec)) << m_visualBlueShift;
1106                 }
1107                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
1108             }
1109         }
1110     }
1111 #endif
1112
1113     return TRUE;
1114 }
1115
1116 WXColormap wxApp::GetMainColormap(WXDisplay* display)
1117 {
1118     if (!display) /* Must be called first with non-NULL display */
1119         return m_mainColormap;
1120
1121     int defaultScreen = DefaultScreen((Display*) display);
1122     Screen* screen = XScreenOfDisplay((Display*) display, defaultScreen);
1123
1124     Colormap c = DefaultColormapOfScreen(screen);
1125
1126     if (!m_mainColormap)
1127         m_mainColormap = (WXColormap) c;
1128
1129     return (WXColormap) c;
1130 }
1131
1132 Window wxGetWindowParent(Window window)
1133 {
1134     wxASSERT_MSG( window, "invalid window" );
1135
1136     return (Window) 0;
1137
1138     Window parent, root = 0;
1139 #if wxUSE_NANOX
1140     int noChildren = 0;
1141 #else
1142     unsigned int noChildren = 0;
1143 #endif
1144     Window* children = NULL;
1145
1146     // #define XQueryTree(d,w,r,p,c,nc)     GrQueryTree(w,p,c,nc)
1147     int res = 1;
1148 #if !wxUSE_NANOX
1149     res =
1150 #endif
1151         XQueryTree((Display*) wxGetDisplay(), window, & root, & parent,
1152              & children, & noChildren);
1153     if (children)
1154         XFree(children);
1155     if (res)
1156         return parent;
1157     else
1158         return (Window) 0;
1159 }
1160
1161 void wxExit()
1162 {
1163     int retValue = 0;
1164     if (wxTheApp)
1165         retValue = wxTheApp->OnExit();
1166
1167     wxApp::CleanUp();
1168     /*
1169     * Exit in some platform-specific way. Not recommended that the app calls this:
1170     * only for emergencies.
1171     */
1172     exit(retValue);
1173 }
1174
1175 // Yield to other processes
1176
1177 bool wxApp::Yield(bool onlyIfNeeded)
1178 {
1179     bool s_inYield = FALSE;
1180
1181     if ( s_inYield )
1182     {
1183         if ( !onlyIfNeeded )
1184         {
1185             wxFAIL_MSG( wxT("wxYield called recursively" ) );
1186         }
1187
1188         return FALSE;
1189     }
1190
1191     s_inYield = TRUE;
1192
1193     // Make sure we have an event loop object,
1194     // or Pending/Dispatch will fail
1195     wxEventLoop* eventLoop = wxEventLoop::GetActive();
1196     wxEventLoop* newEventLoop = NULL;
1197     if (!eventLoop)
1198     {
1199         newEventLoop = new wxEventLoop;
1200         wxEventLoop::SetActive(newEventLoop);
1201     }
1202
1203     while (wxTheApp && wxTheApp->Pending())
1204         wxTheApp->Dispatch();
1205
1206 #if wxUSE_TIMER
1207     wxTimer::NotifyTimers();
1208 #endif
1209     ProcessIdle();
1210
1211     if (newEventLoop)
1212     {
1213         wxEventLoop::SetActive(NULL);
1214         delete newEventLoop;
1215     }
1216
1217     s_inYield = FALSE;
1218
1219     return TRUE;
1220 }
1221
1222 #ifdef __WXDEBUG__
1223
1224 void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxChar *msg)
1225 {
1226     // While the GUI isn't working that well, just print out the
1227     // message.
1228 #if 1
1229     wxAppBase::OnAssert(file, line, cond, msg);
1230 #else
1231     wxString msg2;
1232     msg2.Printf("At file %s:%d: %s", file, line, msg);
1233     wxLogDebug(msg2);
1234 #endif
1235 }
1236
1237 #endif // __WXDEBUG__
1238