src/os2/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.cpp
   3 // Purpose:     wxApp
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/13/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifndef WX_PRECOMP
  16     #include "wx/frame.h"
  17     #include "wx/app.h"
  18     #include "wx/utils.h"
  19     #include "wx/gdicmn.h"
  20     #include "wx/pen.h"
  21     #include "wx/brush.h"
  22     #include "wx/cursor.h"
  23     #include "wx/icon.h"
  24     #include "wx/palette.h"
  25     #include "wx/dc.h"
  26     #include "wx/dialog.h"
  27     #include "wx/msgdlg.h"
  28     #include "wx/intl.h"
  29     #include "wx/dynarray.h"
  30     #include "wx/wxchar.h"
  31     #include "wx/icon.h"
  32     #include "wx/timer.h"
  33 #endif
  34
  35 #include "wx/log.h"
  36 #include "wx/module.h"
  37
  38 #include "wx/os2/private.h"
  39
  40 #ifdef __EMX__
  41
  42 #include <sys/ioctl.h>
  43 #include <sys/select.h>
  44
  45 #else
  46
  47 #include <nerrno.h>
  48 #include <sys/ioctl.h>
  49 #include <sys/select.h>
  50 #include <sys/time.h>
  51
  52 #endif //
  53
  54 #ifndef __EMX__
  55
  56 #define select(a,b,c,d,e) bsdselect(a,b,c,d,e)
  57 extern "C" int _System bsdselect(int,
  58                                  struct fd_set *,
  59                                  struct fd_set *,
  60                                  struct fd_set *,
  61                                  struct timeval *);
  62 #endif
  63
  64 #if wxUSE_THREADS
  65     #include "wx/thread.h"
  66
  67     // define the array of QMSG strutures
  68     WX_DECLARE_OBJARRAY(QMSG, wxMsgArray);
  69
  70     #include "wx/arrimpl.cpp"
  71
  72     WX_DEFINE_OBJARRAY(wxMsgArray);
  73 #endif // wxUSE_THREADS
  74
  75 #if wxUSE_WX_RESOURCES
  76     #include "wx/resource.h"
  77 #endif
  78
  79 #if wxUSE_TOOLTIPS
  80     #include "wx/tooltip.h"
  81 #endif // wxUSE_TOOLTIPS
  82
  83 #include <string.h>
  84 #include <ctype.h>
  85
  86 // ---------------------------------------------------------------------------
  87 // global variables
  88 // ---------------------------------------------------------------------------
  89
  90 extern wxChar*                      wxBuffer;
  91 extern wxList*                      wxWinHandleList;
  92 extern wxList WXDLLEXPORT           wxPendingDelete;
  93 extern wxCursor*                    g_globalCursor;
  94
  95 HAB                                 vHabmain = NULLHANDLE;
  96 QMSG                                svCurrentMsg;
  97 wxApp*                              wxTheApp = NULL;
  98
  99 // NB: all "NoRedraw" classes must have the same names as the "normal" classes
 100 //     with NR suffix - wxWindow::OS2Create() supposes this
 101 wxChar wxFrameClassName[]                 = wxT("wxFrameClass");
 102 wxChar wxFrameClassNameNoRedraw[]         = wxT("wxFrameClassNR");
 103 wxChar wxMDIFrameClassName[]              = wxT("wxMDIFrameClass");
 104 wxChar wxMDIFrameClassNameNoRedraw[]      = wxT("wxMDIFrameClassNR");
 105 wxChar wxMDIChildFrameClassName[]         = wxT("wxMDIChildFrameClass");
 106 wxChar wxMDIChildFrameClassNameNoRedraw[] = wxT("wxMDIChildFrameClassNR");
 107 wxChar wxPanelClassName[]                 = wxT("wxPanelClass");
 108 wxChar wxCanvasClassName[]                = wxT("wxCanvasClass");
 109
 110 HICON wxSTD_FRAME_ICON          = (HICON) NULL;
 111 HICON wxSTD_MDICHILDFRAME_ICON  = (HICON) NULL;
 112 HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
 113
 114 HICON wxDEFAULT_FRAME_ICON           = (HICON) NULL;
 115 HICON wxDEFAULT_MDICHILDFRAME_ICON   = (HICON) NULL;
 116 HICON wxDEFAULT_MDIPARENTFRAME_ICON  = (HICON) NULL;
 117
 118 HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
 119
 120 MRESULT EXPENTRY wxWndProc( HWND hWnd,ULONG message,MPARAM mp1,MPARAM mp2);
 121 MRESULT EXPENTRY wxFrameWndProc( HWND hWnd,ULONG message,MPARAM mp1,MPARAM mp2);
 122
 123 // ===========================================================================
 124 // implementation
 125 // ===========================================================================
 126
 127 // ---------------------------------------------------------------------------
 128 // helper struct and functions for socket handling
 129 // ---------------------------------------------------------------------------
 130
 131 struct GsocketCallbackInfo{
 132     void (*proc)(void *);
 133     int type;
 134     int handle;
 135     void* gsock;
 136 };
 137
 138 // These defines and wrapper functions are used here and in gsockpm.c
 139 #define wxSockReadMask  0x01
 140 #define wxSockWriteMask 0x02
 141
 142 #ifdef __EMX__
 143 extern "C"
 144 int wxAppAddSocketHandler(int handle, int mask,
 145                            void (*callback)(void*), void * gsock)
 146 {
 147     return wxTheApp->AddSocketHandler(handle, mask, callback, gsock);
 148 }
 149 extern "C"
 150 void wxAppRemoveSocketHandler(int handle)
 151 {
 152     wxTheApp->RemoveSocketHandler(handle);
 153 }
 154 #else
 155 //  Linkage mode problems using callbacks with extern C in a .cpp module
 156 int wxAppAddSocketHandler(int handle, int mask,
 157                            void (*callback)(void*), void * gsock)
 158 {
 159     return wxTheApp->AddSocketHandler(handle, mask, callback, gsock);
 160 }
 161 void wxAppRemoveSocketHandler(int handle)
 162 {
 163     wxTheApp->RemoveSocketHandler(handle);
 164 }
 165 #endif
 166
 167 void wxApp::HandleSockets()
 168 {
 169     bool pendingEvent = FALSE;
 170
 171     // Check whether it's time for Gsocket operation
 172     if (m_maxSocketHandles > 0 && m_maxSocketNr > 0)
 173     {
 174         fd_set readfds = m_readfds;
 175         fd_set writefds = m_writefds;
 176         struct timeval timeout;
 177         int i;
 178         struct GsocketCallbackInfo
 179           *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 180         int r = 0;
 181         timeout.tv_sec = 0;
 182         timeout.tv_usec = 0;
 183         if ( select(m_maxSocketNr, &readfds, &writefds, 0, &timeout) > 0)
 184         {
 185             for (i = m_lastUsedHandle + 1; i != m_lastUsedHandle; i++)
 186             {
 187                 if (i == m_maxSocketNr)
 188                     i = 0;
 189                 if (FD_ISSET(i, &readfds))
 190                 {
 191                     int r;
 192                     for (r = 0; r < m_maxSocketHandles; r++){
 193                         if(CallbackInfo[r].handle == i &&
 194                            CallbackInfo[r].type == wxSockReadMask)
 195                             break;
 196                     }
 197                     if (r < m_maxSocketHandles)
 198                     {
 199                         CallbackInfo[r].proc(CallbackInfo[r].gsock);
 200                         pendingEvent = TRUE;
 201                         wxYield();
 202                     }
 203                 }
 204                 if (FD_ISSET(i, &writefds))
 205                 {
 206                     int r;
 207                     for (r = 0; r < m_maxSocketHandles; r++)
 208                         if(CallbackInfo[r].handle == i &&
 209                            CallbackInfo[r].type == wxSockWriteMask)
 210                             break;
 211                     if (r < m_maxSocketHandles)
 212                     {
 213                         CallbackInfo[r].proc(CallbackInfo[r].gsock);
 214                         pendingEvent = TRUE;
 215                         wxYield();
 216                     }
 217                 }
 218             }
 219             m_lastUsedHandle = i;
 220         }
 221         if (pendingEvent)
 222             wxYield();
 223     }
 224 }
 225 // ---------------------------------------------------------------------------
 226 // wxApp
 227 // ---------------------------------------------------------------------------
 228
 229     IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 230
 231     BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 232         EVT_IDLE(wxApp::OnIdle)
 233         EVT_END_SESSION(wxApp::OnEndSession)
 234         EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 235     END_EVENT_TABLE()
 236
 237 //
 238 // Initialize
 239 //
 240 bool wxApp::Initialize(
 241   HAB                               vHab
 242 )
 243 {
 244 #if defined(wxUSE_CONSOLEDEBUG)
 245   #if wxUSE_CONSOLEDEBUG
 246 /***********************************************/
 247 /* Code for using stdout debug                 */
 248 /* To use it you mast link app as "Window" - EK*/
 249 /***********************************************/
 250   {
 251      PPIB pib;
 252      PTIB tib;
 253
 254     printf("In console\n");
 255
 256   DosGetInfoBlocks(&tib, &pib);
 257 /* Try morphing into a PM application. */
 258 //  if(pib->pib_ultype == 2)    /* VIO */
 259     pib->pib_ultype = 3;
 260    }
 261 /**********************************************/
 262 /**********************************************/
 263   #endif //wxUSE_CONSOLEDEBUG
 264 #endif
 265
 266     //
 267     // OS2 has to have an anchorblock
 268     //
 269     vHab = WinInitialize(0);
 270
 271     if (!vHab)
 272         return FALSE;
 273     else
 274         vHabmain = vHab;
 275
 276     // Some people may wish to use this, but
 277     // probably it shouldn't be here by default.
 278 #ifdef __WXDEBUG__
 279     //    wxRedirectIOToConsole();
 280 #endif
 281
 282     wxBuffer = new wxChar[1500]; // FIXME; why?
 283
 284     wxClassInfo::InitializeClasses();
 285
 286 #if wxUSE_THREADS
 287     wxPendingEventsLocker = new wxCriticalSection;
 288 #endif
 289
 290     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 291     wxTheColourDatabase->Initialize();
 292
 293     wxInitializeStockLists();
 294     wxInitializeStockObjects();
 295
 296 #if wxUSE_WX_RESOURCES
 297     wxInitializeResourceSystem();
 298 #endif
 299
 300     wxBitmap::InitStandardHandlers();
 301
 302     RegisterWindowClasses(vHab);
 303     wxWinHandleList = new wxList(wxKEY_INTEGER);
 304
 305     // This is to foil optimizations in Visual C++ that throw out dummy.obj.
 306     // PLEASE DO NOT ALTER THIS.
 307 #if !defined(WXMAKINGDLL) && defined(__VISAGECPP__)
 308     extern char wxDummyChar;
 309     if (wxDummyChar) wxDummyChar++;
 310 #endif
 311
 312     // wxSetKeyboardHook(TRUE);
 313
 314     wxModule::RegisterModules();
 315     if (!wxModule::InitializeModules())
 316         return FALSE;
 317     return TRUE;
 318 } // end of wxApp::Initialize
 319
 320 const char*                         CANTREGISTERCLASS = " Can't register Class ";
 321 // ---------------------------------------------------------------------------
 322 // RegisterWindowClasses
 323 // ---------------------------------------------------------------------------
 324
 325 bool wxApp::RegisterWindowClasses(
 326   HAB                               vHab
 327 )
 328 {
 329     ERRORID                         vError = 0L;
 330     wxString                        sError;
 331
 332     if (!::WinRegisterClass( vHab
 333                             ,wxFrameClassName
 334                             ,wxFrameWndProc
 335                             ,CS_SIZEREDRAW | CS_MOVENOTIFY | CS_SYNCPAINT  | CS_CLIPCHILDREN
 336                             ,sizeof(ULONG)
 337                            ))
 338     {
 339         vError = ::WinGetLastError(vHab);
 340         sError = wxPMErrorToStr(vError);
 341         wxLogLastError(sError);
 342         return FALSE;
 343     }
 344
 345     if (!::WinRegisterClass( vHab
 346                             ,wxFrameClassNameNoRedraw
 347                             ,wxWndProc
 348                             ,0
 349                             ,sizeof(ULONG)
 350                            ))
 351     {
 352         vError = ::WinGetLastError(vHab);
 353         sError = wxPMErrorToStr(vError);
 354         wxLogLastError(sError);
 355         return FALSE;
 356     }
 357
 358     if (!::WinRegisterClass( vHab
 359                             ,wxMDIFrameClassName
 360                             ,wxWndProc
 361                             ,CS_SIZEREDRAW | CS_MOVENOTIFY | CS_SYNCPAINT
 362                             ,sizeof(ULONG)
 363                            ))
 364     {
 365         vError = ::WinGetLastError(vHab);
 366         sError = wxPMErrorToStr(vError);
 367         wxLogLastError(sError);
 368         return FALSE;
 369     }
 370
 371     if (!::WinRegisterClass( vHab
 372                             ,wxMDIFrameClassNameNoRedraw
 373                             ,wxWndProc
 374                             ,0
 375                             ,sizeof(ULONG)
 376                            ))
 377     {
 378         vError = ::WinGetLastError(vHab);
 379         sError = wxPMErrorToStr(vError);
 380         wxLogLastError(sError);
 381         return FALSE;
 382     }
 383
 384     if (!::WinRegisterClass( vHab
 385                             ,wxMDIChildFrameClassName
 386                             ,wxWndProc
 387                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_SYNCPAINT | CS_HITTEST
 388                             ,sizeof(ULONG)
 389                            ))
 390     {
 391         vError = ::WinGetLastError(vHab);
 392         sError = wxPMErrorToStr(vError);
 393         wxLogLastError(sError);
 394         return FALSE;
 395     }
 396
 397     if (!::WinRegisterClass( vHab
 398                             ,wxMDIChildFrameClassNameNoRedraw
 399                             ,wxWndProc
 400                             ,CS_HITTEST
 401                             ,sizeof(ULONG)
 402                            ))
 403     {
 404         vError = ::WinGetLastError(vHab);
 405         sError = wxPMErrorToStr(vError);
 406         wxLogLastError(sError);
 407         return FALSE;
 408     }
 409
 410     if (!::WinRegisterClass( vHab
 411                             ,wxPanelClassName
 412                             ,wxWndProc
 413                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_HITTEST | CS_SAVEBITS | CS_SYNCPAINT
 414                             ,sizeof(ULONG)
 415                            ))
 416     {
 417         vError = ::WinGetLastError(vHab);
 418         sError = wxPMErrorToStr(vError);
 419         wxLogLastError(sError);
 420         return FALSE;
 421     }
 422
 423     if (!::WinRegisterClass( vHab
 424                             ,wxCanvasClassName
 425                             ,wxWndProc
 426                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_HITTEST | CS_SAVEBITS | CS_SYNCPAINT | CS_CLIPCHILDREN
 427                             ,sizeof(ULONG)
 428                            ))
 429     {
 430         vError = ::WinGetLastError(vHab);
 431         sError = wxPMErrorToStr(vError);
 432         wxLogLastError(sError);
 433         return FALSE;
 434     }
 435     return TRUE;
 436 } // end of wxApp::RegisterWindowClasses
 437
 438 //
 439 // Cleans up any wxWindows internal structures left lying around
 440 //
 441 void wxApp::CleanUp()
 442 {
 443     //
 444     // COMMON CLEANUP
 445     //
 446
 447 #if wxUSE_LOG
 448
 449     //
 450     // Flush the logged messages if any and install a 'safer' log target: the
 451     // default one (wxLogGui) can't be used after the resources are freed just
 452     // below and the user suppliedo ne might be even more unsafe (using any
 453     // wxWindows GUI function is unsafe starting from now)
 454     //
 455     wxLog::DontCreateOnDemand();
 456
 457     //
 458     // This will flush the old messages if any
 459     //
 460     delete wxLog::SetActiveTarget(new wxLogStderr);
 461 #endif // wxUSE_LOG
 462
 463     //
 464     // One last chance for pending objects to be cleaned up
 465     //
 466     wxTheApp->DeletePendingObjects();
 467
 468     wxModule::CleanUpModules();
 469
 470 #if wxUSE_WX_RESOURCES
 471     wxCleanUpResourceSystem();
 472 #endif
 473
 474     wxDeleteStockObjects();
 475
 476     //
 477     // Destroy all GDI lists, etc.
 478     //
 479     wxDeleteStockLists();
 480
 481     delete wxTheColourDatabase;
 482     wxTheColourDatabase = NULL;
 483
 484     wxBitmap::CleanUpHandlers();
 485
 486     delete[] wxBuffer;
 487     wxBuffer = NULL;
 488
 489     //
 490     // PM-SPECIFIC CLEANUP
 491     //
 492
 493     // wxSetKeyboardHook(FALSE);
 494
 495     if (wxSTD_FRAME_ICON)
 496         ::WinFreeFileIcon(wxSTD_FRAME_ICON);
 497     if (wxSTD_MDICHILDFRAME_ICON)
 498         ::WinFreeFileIcon(wxSTD_MDICHILDFRAME_ICON);
 499     if (wxSTD_MDIPARENTFRAME_ICON)
 500         ::WinFreeFileIcon(wxSTD_MDIPARENTFRAME_ICON);
 501
 502     if (wxDEFAULT_FRAME_ICON)
 503         ::WinFreeFileIcon(wxDEFAULT_FRAME_ICON);
 504     if (wxDEFAULT_MDICHILDFRAME_ICON)
 505         ::WinFreeFileIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 506     if (wxDEFAULT_MDIPARENTFRAME_ICON)
 507         ::WinFreeFileIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 508
 509     if ( wxDisableButtonBrush )
 510     {
 511 // TODO:        ::DeleteObject( wxDisableButtonBrush );
 512     }
 513
 514     if (wxWinHandleList)
 515         delete wxWinHandleList;
 516
 517     delete wxPendingEvents;
 518 #if wxUSE_THREADS
 519     delete wxPendingEventsLocker;
 520     // If we don't do the following, we get an apparent memory leak.
 521     ((wxEvtHandler&) wxDefaultValidator).ClearEventLocker();
 522 #endif
 523
 524     wxClassInfo::CleanUpClasses();
 525
 526     // Delete Message queue
 527     if (wxTheApp->m_hMq)
 528         ::WinDestroyMsgQueue(wxTheApp->m_hMq);
 529
 530     delete wxTheApp;
 531     wxTheApp = NULL;
 532
 533 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 534     // At this point we want to check if there are any memory
 535     // blocks that aren't part of the wxDebugContext itself,
 536     // as a special case. Then when dumping we need to ignore
 537     // wxDebugContext, too.
 538     if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
 539     {
 540         wxLogDebug(wxT("There were memory leaks."));
 541         wxDebugContext::Dump();
 542         wxDebugContext::PrintStatistics();
 543     }
 544     //  wxDebugContext::SetStream(NULL, NULL);
 545 #endif
 546
 547 #if wxUSE_LOG
 548     // do it as the very last thing because everything else can log messages
 549     delete wxLog::SetActiveTarget(NULL);
 550 #endif // wxUSE_LOG
 551 } // end of wxApp::CleanUp
 552
 553 //----------------------------------------------------------------------
 554 // Main wxWindows entry point
 555 //----------------------------------------------------------------------
 556 int wxEntry(
 557   int                               argc
 558 , char*                             argv[]
 559 )
 560 {
 561     HAB                             vHab = 0;
 562
 563     if (!wxApp::Initialize(vHab))
 564         return 0;
 565
 566     //
 567     // create the application object or ensure that one already exists
 568     //
 569     if (!wxTheApp)
 570     {
 571         // The app may have declared a global application object, but we recommend
 572         // the IMPLEMENT_APP macro is used instead, which sets an initializer
 573         // function for delayed, dynamic app object construction.
 574         wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 575                      wxT("No initializer - use IMPLEMENT_APP macro.") );
 576         wxTheApp = (*wxApp::GetInitializerFunction()) ();
 577     }
 578     wxCHECK_MSG( wxTheApp, 0, wxT("You have to define an instance of wxApp!") );
 579     wxTheApp->argc = argc;
 580
 581 #if wxUSE_UNICODE
 582     wxTheApp->argv = new wxChar*[argc+1];
 583
 584     int                             nArgc = 0;
 585
 586     while (nArgc < argc)
 587     {
 588           wxTheApp->argv[nArgc] = wxStrdup(wxConvLibc.cMB2WX(argv[nArgc]));
 589           nArgc++;
 590     }
 591     wxTheApp->argv[nArgc] = (wxChar *)NULL;
 592 #else
 593     wxTheApp->argv = argv;
 594 #endif
 595
 596     wxString                        sName(wxFileNameFromPath(argv[0]));
 597
 598     wxStripExtension(sName);
 599     wxTheApp->SetAppName(sName);
 600
 601     int                             nRetValue = 0;
 602
 603     if (!wxTheApp->OnInitGui())
 604         nRetValue = -1;
 605
 606     if (nRetValue == 0)
 607     {
 608         if (wxTheApp->OnInit())
 609         {
 610             nRetValue = wxTheApp->OnRun();
 611         }
 612         // Normal exit
 613         wxWindow*                   pTopWindow = wxTheApp->GetTopWindow();
 614         if (pTopWindow)
 615         {
 616             // Forcibly delete the window.
 617             if (pTopWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 618                 pTopWindow->IsKindOf(CLASSINFO(wxDialog)) )
 619             {
 620                 pTopWindow->Close(TRUE);
 621                 wxTheApp->DeletePendingObjects();
 622             }
 623             else
 624             {
 625                 delete pTopWindow;
 626                 wxTheApp->SetTopWindow(NULL);
 627             }
 628         }
 629     }
 630     else // app initialization failed
 631     {
 632         wxLogLastError(" Gui initialization failed, exitting");
 633     }
 634 #if wxUSE_CONSOLEDEBUG
 635     printf("wxTheApp->OnExit ");
 636     fflush(stdout);
 637 #endif
 638     wxTheApp->OnExit();
 639 #if wxUSE_CONSOLEDEBUG
 640     printf("wxApp::CleanUp ");
 641     fflush(stdout);
 642 #endif
 643     wxApp::CleanUp();
 644 #if wxUSE_CONSOLEDEBUG
 645     printf("return %i ", nRetValue);
 646     fflush(stdout);
 647 #endif
 648     return(nRetValue);
 649 } // end of wxEntry
 650
 651 bool wxApp::OnInitGui()
 652 {
 653     ERRORID                         vError;
 654     wxString                        sError;
 655
 656     if (!wxAppBase::OnInitGui())
 657         return FALSE;
 658
 659     m_hMq = ::WinCreateMsgQueue(vHabmain, 0);
 660     if (!m_hMq)
 661     {
 662         vError = ::WinGetLastError(vHabmain);
 663         sError = wxPMErrorToStr(vError);
 664         wxLogDebug(sError);
 665         return FALSE;
 666     }
 667
 668     return TRUE;
 669 } // end of wxApp::OnInitGui
 670
 671 //
 672 // Static member initialization
 673 //
 674 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 675
 676 wxApp::wxApp()
 677 {
 678     m_topWindow = NULL;
 679     wxTheApp = this;
 680     m_wantDebugOutput = TRUE;
 681
 682     argc = 0;
 683     argv = NULL;
 684     m_nPrintMode = wxPRINT_WINDOWS;
 685     m_exitOnFrameDelete = TRUE;
 686     m_bAuto3D = TRUE;
 687     m_hMq = 0;
 688     m_maxSocketHandles = 0;
 689     m_maxSocketNr = 0;
 690     m_sockCallbackInfo = 0;
 691 } // end of wxApp::wxApp
 692
 693 wxApp::~wxApp()
 694 {
 695     //
 696     // Delete command-line args
 697     //
 698 #if wxUSE_UNICODE
 699     int                             i;
 700
 701     for (i = 0; i < argc; i++)
 702     {
 703         delete[] argv[i];
 704     }
 705     delete[] argv;
 706 #endif
 707 } // end of wxApp::~wxApp
 708
 709 bool wxApp::Initialized()
 710 {
 711     if (GetTopWindow())
 712         return TRUE;
 713     else
 714         return FALSE;
 715 } // end of wxApp::Initialized
 716
 717 //
 718 // Get and process a message, returning FALSE if WM_QUIT
 719 // received (and also set the flag telling the app to exit the main loop)
 720 //
 721
 722 bool wxApp::DoMessage()
 723 {
 724     BOOL                            bRc = ::WinGetMsg(vHabmain, &svCurrentMsg, HWND(NULL), 0, 0);
 725
 726     if (bRc == 0)
 727     {
 728         // got WM_QUIT
 729         m_bKeepGoing = FALSE;
 730         return FALSE;
 731     }
 732     else if (bRc == -1)
 733     {
 734         // should never happen, but let's test for it nevertheless
 735         wxLogLastError("GetMessage");
 736     }
 737     else
 738     {
 739 #if wxUSE_THREADS
 740         wxASSERT_MSG( wxThread::IsMain()
 741                      ,wxT("only the main thread can process Windows messages")
 742                     );
 743
 744         static bool                 sbHadGuiLock = TRUE;
 745         static wxMsgArray           svSavedMessages;
 746
 747         //
 748         // If a secondary thread owns is doing GUI calls, save all messages for
 749         // later processing - we can't process them right now because it will
 750         // lead to recursive library calls (and we're not reentrant)
 751         //
 752         if (!wxGuiOwnedByMainThread())
 753         {
 754             sbHadGuiLock = FALSE;
 755
 756             //
 757             // Leave out WM_COMMAND messages: too dangerous, sometimes
 758             // the message will be processed twice
 759             //
 760             if ( !wxIsWaitingForThread() ||
 761                     svCurrentMsg.msg != WM_COMMAND )
 762             {
 763                 svSavedMessages.Add(svCurrentMsg);
 764             }
 765             return TRUE;
 766         }
 767         else
 768         {
 769             //
 770             // Have we just regained the GUI lock? if so, post all of the saved
 771             // messages
 772             //
 773             if (!sbHadGuiLock )
 774             {
 775                 sbHadGuiLock = TRUE;
 776
 777                 size_t             nCount = svSavedMessages.Count();
 778
 779                 for (size_t n = 0; n < nCount; n++)
 780                 {
 781                     QMSG            vMsg = svSavedMessages[n];
 782
 783                     if ( !ProcessMessage((WXMSG *)&vMsg) )
 784                     {
 785                         ::WinDispatchMsg(vHabmain, &vMsg);
 786                     }
 787                 }
 788                 svSavedMessages.Empty();
 789             }
 790         }
 791 #endif // wxUSE_THREADS
 792
 793         //
 794         // Process the message
 795         //
 796         DoMessage((WXMSG *)&svCurrentMsg);
 797     }
 798     return TRUE;
 799 } // end of wxApp::DoMessage
 800
 801 void wxApp::DoMessage(
 802   WXMSG*                            pMsg
 803 )
 804 {
 805     if (!ProcessMessage((WXMSG *)&svCurrentMsg))
 806     {
 807         ::WinDispatchMsg(vHabmain, (PQMSG)&svCurrentMsg);
 808     }
 809 } // end of wxApp::DoMessage
 810
 811 //////////////////////////////////////////////////////////////////////////////
 812 //
 813 // Keep trying to process messages until WM_QUIT
 814 // received.
 815 //
 816 // If there are messages to be processed, they will all be
 817 // processed and OnIdle will not be called.
 818 // When there are no more messages, OnIdle is called.
 819 // If OnIdle requests more time,
 820 // it will be repeatedly called so long as there are no pending messages.
 821 // A 'feature' of this is that once OnIdle has decided that no more processing
 822 // is required, then it won't get processing time until further messages
 823 // are processed (it'll sit in DoMessage).
 824 //
 825 //////////////////////////////////////////////////////////////////////////////
 826 int wxApp::MainLoop()
 827 {
 828     m_bKeepGoing = TRUE;
 829
 830     while (m_bKeepGoing)
 831     {
 832 #if wxUSE_THREADS
 833         wxMutexGuiLeaveOrEnter();
 834 #endif // wxUSE_THREADS
 835         while (!Pending() && ProcessIdle())
 836         {
 837             HandleSockets();
 838             wxUsleep(10000);
 839         }
 840         HandleSockets();
 841         if (Pending())
 842             DoMessage();
 843         else
 844             wxUsleep(10000);
 845
 846     }
 847     return (int)svCurrentMsg.mp1;
 848 } // end of wxApp::MainLoop
 849
 850 //
 851 // Returns TRUE if more time is needed.
 852 //
 853 bool wxApp::ProcessIdle()
 854 {
 855     wxIdleEvent                     vEvent;
 856
 857     vEvent.SetEventObject(this);
 858     ProcessEvent(vEvent);
 859     return vEvent.MoreRequested();
 860 } // end of wxApp::ProcessIdle
 861
 862 void wxApp::ExitMainLoop()
 863 {
 864     m_bKeepGoing = FALSE;
 865 }
 866
 867 bool wxApp::Pending()
 868 {
 869     return (::WinPeekMsg(vHabmain, (PQMSG)&svCurrentMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) != 0);
 870 }
 871
 872 void wxApp::Dispatch()
 873 {
 874     DoMessage();
 875 }
 876
 877 //////////////////////////////////////////////////////////////////////////////
 878 //
 879 // Give all windows a chance to preprocess
 880 // the message. Some may have accelerator tables, or have
 881 // MDI complications.
 882 //
 883 //////////////////////////////////////////////////////////////////////////////
 884 bool wxApp::ProcessMessage(
 885   WXMSG*                            pWxmsg
 886 )
 887 {
 888     QMSG*                           pMsg = (PQMSG)pWxmsg;
 889     HWND                            hWnd = pMsg->hwnd;
 890     wxWindow*                       pWndThis = wxFindWinFromHandle((WXHWND)hWnd);
 891     wxWindow*                       pWnd;
 892
 893 #if wxUSE_TOOLTIPS
 894     //
 895     // We must relay WM_MOUSEMOVE events to the tooltip ctrl if we want it to
 896     // popup the tooltip bubbles
 897     //
 898     if (pWndThis && (pMsg->msg == WM_MOUSEMOVE))
 899     {
 900         wxToolTip*                  pToolTip = pWndThis->GetToolTip();
 901         if (pToolTip)
 902         {
 903             pToolTip->RelayEvent(pWxmsg);
 904         }
 905     }
 906 #endif // wxUSE_TOOLTIPS
 907
 908     //
 909     // We must relay Timer events to wxTimer's processing function
 910     //
 911     if (pMsg->msg == WM_TIMER)
 912         wxTimerProc(NULL, 0, (int)pMsg->mp1, 0);
 913
 914     //
 915     // For some composite controls (like a combobox), wndThis might be NULL
 916     // because the subcontrol is not a wxWindow, but only the control itself
 917     // is - try to catch this case
 918     //
 919     while (hWnd && !pWndThis)
 920     {
 921         hWnd = ::WinQueryWindow(hWnd, QW_PARENT);
 922         pWndThis = wxFindWinFromHandle((WXHWND)hWnd);
 923     }
 924
 925     //
 926     // Try translations first; find the youngest window with
 927     // a translation table. OS/2 has case sensative accels, so
 928     // this block, coded by BK, removes that and helps make them
 929     // case insensative.
 930     //
 931     if(pMsg->msg == WM_CHAR)
 932     {
 933        PBYTE                        pChmsg = (PBYTE)&(pMsg->msg);
 934        USHORT                       uSch  = CHARMSG(pChmsg)->chr;
 935        bool                         bRc;
 936
 937        //
 938        // Do not process keyup events
 939        //
 940        if(!(CHARMSG(pChmsg)->fs & KC_KEYUP))
 941        {
 942            if((CHARMSG(pChmsg)->fs & (KC_ALT | KC_CTRL)) && CHARMSG(pChmsg)->chr != 0)
 943                 CHARMSG(pChmsg)->chr = (USHORT)wxToupper((UCHAR)uSch);
 944
 945
 946            for(pWnd = pWndThis; pWnd; pWnd = pWnd->GetParent() )
 947            {
 948                if((bRc = pWnd->OS2TranslateMessage(pWxmsg)) == TRUE)
 949                    break;
 950            }
 951
 952             if(!bRc)    // untranslated, should restore original value
 953                 CHARMSG(pChmsg)->chr = uSch;
 954         }
 955     }
 956     //
 957     // Anyone for a non-translation message? Try youngest descendants first.
 958     //
 959 //  for (pWnd = pWndThis; pWnd; pWnd = pWnd->GetParent())
 960 //  {
 961 //      if (pWnd->OS2ProcessMessage(pWxmsg))
 962 //          return TRUE;
 963 //  }
 964     return FALSE;
 965 } // end of wxApp::ProcessMessage
 966
 967 void wxApp::OnIdle(
 968   wxIdleEvent&                      rEvent
 969 )
 970 {
 971     static bool                     sbInOnIdle = FALSE;
 972
 973     //
 974     // Avoid recursion (via ProcessEvent default case)
 975     //
 976     if (sbInOnIdle)
 977         return;
 978
 979     sbInOnIdle = TRUE;
 980
 981     //
 982     // If there are pending events, we must process them: pending events
 983     // are either events to the threads other than main or events posted
 984     // with wxPostEvent() functions
 985     //
 986     ProcessPendingEvents();
 987
 988     //
 989     // 'Garbage' collection of windows deleted with Close().
 990     //
 991     DeletePendingObjects();
 992
 993 #if wxUSE_LOG
 994     //
 995     // Flush the logged messages if any
 996     //
 997     wxLog::FlushActive();
 998 #endif // wxUSE_LOG
 999
1000 #if wxUSE_DC_CACHEING
1001     // automated DC cache management: clear the cached DCs and bitmap
1002     // if it's likely that the app has finished with them, that is, we
1003     // get an idle event and we're not dragging anything.
1004     if (!::WinGetKeyState(HWND_DESKTOP, VK_BUTTON1) &&
1005         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON3) &&
1006         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON2))
1007         wxDC::ClearCache();
1008 #endif // wxUSE_DC_CACHEING
1009
1010     //
1011     // Send OnIdle events to all windows
1012     //
1013     if (SendIdleEvents())
1014     {
1015         //
1016         // SendIdleEvents() returns TRUE if at least one window requested more
1017         // idle events
1018         //
1019         rEvent.RequestMore(TRUE);
1020     }
1021     sbInOnIdle = FALSE;
1022 } // end of wxApp::OnIdle
1023
1024 // Send idle event to all top-level windows
1025 bool wxApp::SendIdleEvents()
1026 {
1027     bool                            bNeedMore = FALSE;
1028     wxWindowList::Node*             pNode = wxTopLevelWindows.GetFirst();
1029
1030     while (pNode)
1031     {
1032         wxWindow*                   pWin = pNode->GetData();
1033
1034         if (SendIdleEvents(pWin))
1035             bNeedMore = TRUE;
1036         pNode = pNode->GetNext();
1037     }
1038     return bNeedMore;
1039 } // end of wxApp::SendIdleEvents
1040
1041 //
1042 // Send idle event to window and all subwindows
1043 //
1044 bool wxApp::SendIdleEvents(
1045   wxWindow*                         pWin
1046 )
1047 {
1048     bool                            bNeedMore = FALSE;
1049     wxIdleEvent                     vEvent;
1050
1051     vEvent.SetEventObject(pWin);
1052     pWin->GetEventHandler()->ProcessEvent(vEvent);
1053
1054     if (vEvent.MoreRequested())
1055         bNeedMore = TRUE;
1056
1057     wxNode*                         pNode = pWin->GetChildren().First();
1058
1059     while (pNode)
1060     {
1061         wxWindow*                   pWin = (wxWindow*) pNode->Data();
1062
1063         if (SendIdleEvents(pWin))
1064             bNeedMore = TRUE;
1065         pNode = pNode->Next();
1066     }
1067     return bNeedMore;
1068 } // end of wxApp::SendIdleEvents
1069
1070 void wxApp::DeletePendingObjects()
1071 {
1072     wxNode*                         pNode = wxPendingDelete.First();
1073
1074     while (pNode)
1075     {
1076         wxObject*                   pObj = (wxObject *)pNode->Data();
1077
1078         delete pObj;
1079
1080         if (wxPendingDelete.Member(pObj))
1081             delete pNode;
1082
1083         //
1084         // Deleting one object may have deleted other pending
1085         // objects, so start from beginning of list again.
1086         //
1087         pNode = wxPendingDelete.First();
1088     }
1089 } // end of wxApp::DeletePendingObjects
1090
1091 void wxApp::OnEndSession(
1092   wxCloseEvent&                     WXUNUSED(rEvent))
1093 {
1094     if (GetTopWindow())
1095         GetTopWindow()->Close(TRUE);
1096 } // end of wxApp::OnEndSession
1097
1098 //
1099 // Default behaviour: close the application with prompts. The
1100 // user can veto the close, and therefore the end session.
1101 //
1102 void wxApp::OnQueryEndSession(
1103   wxCloseEvent&                     rEvent
1104 )
1105 {
1106     if (GetTopWindow())
1107     {
1108         if (!GetTopWindow()->Close(!rEvent.CanVeto()))
1109             rEvent.Veto(TRUE);
1110     }
1111 } // end of wxApp::OnQueryEndSession
1112
1113 void wxExit()
1114 {
1115     wxLogError(_("Fatal error: exiting"));
1116
1117     wxApp::CleanUp();
1118 } // end of wxExit
1119
1120 static bool gs_inYield = FALSE;
1121
1122 //
1123 // Yield to incoming messages
1124 //
1125 bool wxYield()
1126 {
1127     HAB                             vHab = 0;
1128     QMSG                            vMsg;
1129
1130     //
1131     // Disable log flushing from here because a call to wxYield() shouldn't
1132     // normally result in message boxes popping up &c
1133     //
1134     wxLog::Suspend();
1135
1136     gs_inYield = TRUE;
1137
1138     //
1139     // We want to go back to the main message loop
1140     // if we see a WM_QUIT. (?)
1141     //
1142     while (::WinPeekMsg(vHab, &vMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) && vMsg.msg != WM_QUIT)
1143     {
1144 #if wxUSE_THREADS
1145         wxMutexGuiLeaveOrEnter();
1146 #endif // wxUSE_THREADS
1147         if (!wxTheApp->DoMessage())
1148             break;
1149     }
1150     //
1151     // If they are pending events, we must process them.
1152     //
1153     if (wxTheApp)
1154         wxTheApp->ProcessPendingEvents();
1155
1156     //
1157     // Let the logs be flashed again
1158     //
1159     wxLog::Resume();
1160     gs_inYield = FALSE;
1161     return TRUE;
1162 } // end of wxYield
1163
1164 // Yield to incoming messages; but fail silently if recursion is detected.
1165 bool wxYieldIfNeeded()
1166 {
1167     if (gs_inYield)
1168         return FALSE;
1169
1170     return wxYield();
1171 }
1172
1173 wxIcon wxApp::GetStdIcon(
1174   int                               nWhich
1175 ) const
1176 {
1177     switch(nWhich)
1178     {
1179         case wxICON_INFORMATION:
1180             return wxIcon("wxICON_INFO");
1181
1182         case wxICON_QUESTION:
1183             return wxIcon("wxICON_QUESTION");
1184
1185         case wxICON_EXCLAMATION:
1186             return wxIcon("wxICON_WARNING");
1187
1188         default:
1189             wxFAIL_MSG(wxT("requested non existent standard icon"));
1190             // still fall through
1191
1192         case wxICON_HAND:
1193             return wxIcon("wxICON_ERROR");
1194     }
1195     return wxIcon("wxICON_ERROR");
1196 } // end of wxApp::GetStdIcon
1197
1198 int wxApp::AddSocketHandler(int handle, int mask,
1199                             void (*callback)(void*), void * gsock)
1200 {
1201     int find;
1202     struct GsocketCallbackInfo
1203         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
1204
1205     for (find = 0; find < m_maxSocketHandles; find++)
1206         if (CallbackInfo[find].handle == -1)
1207             break;
1208     if (find == m_maxSocketHandles)
1209     {
1210         // Allocate new memory
1211         m_sockCallbackInfo = realloc(m_sockCallbackInfo,
1212                                      (m_maxSocketHandles+=10)*
1213                                      sizeof(struct GsocketCallbackInfo));
1214         CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
1215         for (find = m_maxSocketHandles - 10; find < m_maxSocketHandles; find++)
1216             CallbackInfo[find].handle = -1;
1217         find = m_maxSocketHandles - 10;
1218     }
1219     CallbackInfo[find].proc = callback;
1220     CallbackInfo[find].type = mask;
1221     CallbackInfo[find].handle = handle;
1222     CallbackInfo[find].gsock = gsock;
1223     if (mask & wxSockReadMask)
1224         FD_SET(handle, &m_readfds);
1225     if (mask & wxSockWriteMask)
1226         FD_SET(handle, &m_writefds);
1227     if (handle >= m_maxSocketNr)
1228         m_maxSocketNr = handle + 1;
1229     return find;
1230 }
1231
1232 void wxApp::RemoveSocketHandler(int handle)
1233 {
1234     struct GsocketCallbackInfo
1235         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
1236     if (handle < m_maxSocketHandles)
1237     {
1238         if (CallbackInfo[handle].type & wxSockReadMask)
1239             FD_CLR(CallbackInfo[handle].handle, &m_readfds);
1240         if (CallbackInfo[handle].type & wxSockWriteMask)
1241             FD_CLR(CallbackInfo[handle].handle, &m_writefds);
1242         CallbackInfo[handle].handle = -1;
1243     }
1244 }
1245
1246 //-----------------------------------------------------------------------------
1247 // wxWakeUpIdle
1248 //-----------------------------------------------------------------------------
1249
1250 void wxWakeUpIdle()
1251 {
1252     //
1253     // Send the top window a dummy message so idle handler processing will
1254     // start up again.  Doing it this way ensures that the idle handler
1255     // wakes up in the right thread (see also wxWakeUpMainThread() which does
1256     // the same for the main app thread only)
1257     //
1258     wxWindow*                       pTopWindow = wxTheApp->GetTopWindow();
1259
1260     if (pTopWindow)
1261     {
1262         if ( !::WinPostMsg(GetHwndOf(pTopWindow), WM_NULL, (MPARAM)0, (MPARAM)0))
1263         {
1264             //
1265             // Should never happen
1266             //
1267             wxLogLastError("PostMessage(WM_NULL)");
1268         }
1269     }
1270 } // end of wxWakeUpIdle
1271
1272 HAB wxGetInstance()
1273 {
1274     return vHabmain;
1275 }
1276
1277 void wxSetInstance(
1278   HAB                               vHab
1279 )
1280 {
1281     vHabmain = vHab;
1282 }
1283