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 #ifdef __GNUG__
  13     #pragma implementation "app.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/frame.h"
  21     #include "wx/app.h"
  22     #include "wx/utils.h"
  23     #include "wx/gdicmn.h"
  24     #include "wx/pen.h"
  25     #include "wx/brush.h"
  26     #include "wx/cursor.h"
  27     #include "wx/icon.h"
  28     #include "wx/palette.h"
  29     #include "wx/dc.h"
  30     #include "wx/dialog.h"
  31     #include "wx/msgdlg.h"
  32     #include "wx/intl.h"
  33     #include "wx/dynarray.h"
  34     #include "wx/wxchar.h"
  35     #include "wx/icon.h"
  36 #endif
  37
  38 #include "wx/log.h"
  39 #include "wx/module.h"
  40
  41 #include "wx/os2/private.h"
  42
  43 #ifdef __EMX__
  44
  45 #include <sys/ioctl.h>
  46 #include <sys/select.h>
  47
  48 #else
  49
  50 #include <nerrno.h>
  51 #include <sys/ioctl.h>
  52 #include <sys/select.h>
  53 #include <sys/time.h>
  54
  55 #endif //
  56
  57 #ifndef __EMX__
  58
  59 #define select(a,b,c,d,e) bsdselect(a,b,c,d,e)
  60 extern "C" int _System bsdselect(int,
  61                                  struct fd_set *,
  62                                  struct fd_set *,
  63                                  struct fd_set *,
  64                                  struct timeval *);
  65 #endif
  66
  67 #if wxUSE_THREADS
  68     #include "wx/thread.h"
  69 #endif // wxUSE_THREADS
  70
  71 #if wxUSE_TOOLTIPS
  72     #include "wx/tooltip.h"
  73 #endif // wxUSE_TOOLTIPS
  74
  75 #include <string.h>
  76 #include <ctype.h>
  77
  78 // ---------------------------------------------------------------------------
  79 // global variables
  80 // ---------------------------------------------------------------------------
  81
  82 extern wxChar*                      wxBuffer;
  83 extern wxList*                      wxWinHandleList;
  84 extern wxList WXDLLEXPORT           wxPendingDelete;
  85 extern wxCursor*                    g_globalCursor;
  86
  87 HAB                                 vHabmain = NULLHANDLE;
  88
  89
  90 HICON wxSTD_FRAME_ICON          = (HICON) NULL;
  91 HICON wxSTD_MDICHILDFRAME_ICON  = (HICON) NULL;
  92 HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
  93
  94 HICON wxDEFAULT_FRAME_ICON           = (HICON) NULL;
  95 HICON wxDEFAULT_MDICHILDFRAME_ICON   = (HICON) NULL;
  96 HICON wxDEFAULT_MDIPARENTFRAME_ICON  = (HICON) NULL;
  97
  98 HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
  99
 100 MRESULT EXPENTRY wxWndProc( HWND hWnd,ULONG message,MPARAM mp1,MPARAM mp2);
 101 MRESULT EXPENTRY wxFrameWndProc( HWND hWnd,ULONG message,MPARAM mp1,MPARAM mp2);
 102
 103 // ===========================================================================
 104 // implementation
 105 // ===========================================================================
 106
 107 // ---------------------------------------------------------------------------
 108 // helper struct and functions for socket handling
 109 // ---------------------------------------------------------------------------
 110
 111 struct GsocketCallbackInfo{
 112     void (*proc)(void *);
 113     int type;
 114     int handle;
 115     void* gsock;
 116 };
 117
 118 // These defines and wrapper functions are used here and in gsockpm.c
 119 #define wxSockReadMask  0x01
 120 #define wxSockWriteMask 0x02
 121
 122 #ifdef __EMX__
 123 extern "C"
 124 int wxAppAddSocketHandler(int handle, int mask,
 125                            void (*callback)(void*), void * gsock)
 126 {
 127     return wxTheApp->AddSocketHandler(handle, mask, callback, gsock);
 128 }
 129 extern "C"
 130 void wxAppRemoveSocketHandler(int handle)
 131 {
 132     wxTheApp->RemoveSocketHandler(handle);
 133 }
 134 #else
 135 //  Linkage mode problems using callbacks with extern C in a .cpp module
 136 int wxAppAddSocketHandler(int handle, int mask,
 137                            void (*callback)(void*), void * gsock)
 138 {
 139     return wxTheApp->AddSocketHandler(handle, mask, callback, gsock);
 140 }
 141 void wxAppRemoveSocketHandler(int handle)
 142 {
 143     wxTheApp->RemoveSocketHandler(handle);
 144 }
 145 #endif
 146
 147 void wxApp::HandleSockets()
 148 {
 149     bool pendingEvent = FALSE;
 150
 151     // Check whether it's time for Gsocket operation
 152     if (m_maxSocketHandles > 0 && m_maxSocketNr > 0)
 153     {
 154         fd_set readfds = m_readfds;
 155         fd_set writefds = m_writefds;
 156         struct timeval timeout;
 157         int i;
 158         struct GsocketCallbackInfo
 159           *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 160         timeout.tv_sec = 0;
 161         timeout.tv_usec = 0;
 162         if ( select(m_maxSocketNr, &readfds, &writefds, 0, &timeout) > 0)
 163         {
 164             for (i = m_lastUsedHandle + 1; i != m_lastUsedHandle;
 165                  (i < m_maxSocketNr - 1) ? i++ : (i = 0))
 166             {
 167                 if (FD_ISSET(i, &readfds))
 168                 {
 169                     int r;
 170                     for (r = 0; r < m_maxSocketHandles; r++){
 171                         if(CallbackInfo[r].handle == i &&
 172                            CallbackInfo[r].type == wxSockReadMask)
 173                             break;
 174                     }
 175                     if (r < m_maxSocketHandles)
 176                     {
 177                         CallbackInfo[r].proc(CallbackInfo[r].gsock);
 178                         pendingEvent = TRUE;
 179                     }
 180                 }
 181                 if (FD_ISSET(i, &writefds))
 182                 {
 183                     int r;
 184                     for (r = 0; r < m_maxSocketHandles; r++)
 185                         if(CallbackInfo[r].handle == i &&
 186                            CallbackInfo[r].type == wxSockWriteMask)
 187                             break;
 188                     if (r < m_maxSocketHandles)
 189                     {
 190                         CallbackInfo[r].proc(CallbackInfo[r].gsock);
 191                         pendingEvent = TRUE;
 192                     }
 193                 }
 194             }
 195             m_lastUsedHandle = i;
 196         }
 197         if (pendingEvent)
 198             ProcessPendingEvents();
 199     }
 200 }
 201 // ---------------------------------------------------------------------------
 202 // wxApp
 203 // ---------------------------------------------------------------------------
 204
 205     IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 206
 207     BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 208         EVT_IDLE(wxApp::OnIdle)
 209         EVT_END_SESSION(wxApp::OnEndSession)
 210         EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 211     END_EVENT_TABLE()
 212
 213 //
 214 // Initialize
 215 //
 216 bool wxApp::Initialize(int& argc, wxChar **argv)
 217 {
 218     if ( !wxAppBase::Initialize(argc, argv) )
 219         return false;
 220
 221 #if defined(wxUSE_CONSOLEDEBUG)
 222   #if wxUSE_CONSOLEDEBUG
 223 /***********************************************/
 224 /* Code for using stdout debug                 */
 225 /* To use it you mast link app as "Window" - EK*/
 226 /***********************************************/
 227   {
 228      PPIB pib;
 229      PTIB tib;
 230
 231     printf("In console\n");
 232
 233   DosGetInfoBlocks(&tib, &pib);
 234 /* Try morphing into a PM application. */
 235 //  if(pib->pib_ultype == 2)    /* VIO */
 236     pib->pib_ultype = 3;
 237    }
 238 /**********************************************/
 239 /**********************************************/
 240   #endif //wxUSE_CONSOLEDEBUG
 241 #endif
 242
 243     //
 244     // OS2 has to have an anchorblock
 245     //
 246     vHabmain = WinInitialize(0);
 247
 248     if (!vHabmain)
 249     {
 250         // TODO: at least give some error message here...
 251         wxAppBase::CleanUp();
 252
 253         return FALSE;
 254     }
 255
 256     wxBuffer = new wxChar[1500]; // FIXME; why?
 257
 258     // Some people may wish to use this, but
 259     // probably it shouldn't be here by default.
 260 #ifdef __WXDEBUG__
 261     //    wxRedirectIOToConsole();
 262 #endif
 263
 264     wxWinHandleList = new wxList(wxKEY_INTEGER);
 265
 266     // This is to foil optimizations in Visual C++ that throw out dummy.obj.
 267     // PLEASE DO NOT ALTER THIS.
 268 #if !defined(WXMAKINGDLL) && defined(__VISAGECPP__)
 269     extern char wxDummyChar;
 270     if (wxDummyChar) wxDummyChar++;
 271 #endif
 272
 273     // wxSetKeyboardHook(TRUE);
 274
 275     RegisterWindowClasses(vHabmain);
 276
 277     return TRUE;
 278 } // end of wxApp::Initialize
 279
 280 const char*                         CANTREGISTERCLASS = " Can't register Class ";
 281 // ---------------------------------------------------------------------------
 282 // RegisterWindowClasses
 283 // ---------------------------------------------------------------------------
 284
 285 bool wxApp::RegisterWindowClasses(
 286   HAB                               vHab
 287 )
 288 {
 289     ERRORID                         vError = 0L;
 290     wxString                        sError;
 291
 292     if (!::WinRegisterClass( vHab
 293                             ,wxFrameClassName
 294                             ,wxFrameWndProc
 295                             ,CS_SIZEREDRAW | CS_SYNCPAINT
 296                             ,sizeof(ULONG)
 297                            ))
 298     {
 299         vError = ::WinGetLastError(vHab);
 300         sError = wxPMErrorToStr(vError);
 301         wxLogLastError(sError);
 302         return FALSE;
 303     }
 304
 305     if (!::WinRegisterClass( vHab
 306                             ,wxFrameClassNameNoRedraw
 307                             ,wxWndProc
 308                             ,0
 309                             ,sizeof(ULONG)
 310                            ))
 311     {
 312         vError = ::WinGetLastError(vHab);
 313         sError = wxPMErrorToStr(vError);
 314         wxLogLastError(sError);
 315         return FALSE;
 316     }
 317
 318     if (!::WinRegisterClass( vHab
 319                             ,wxMDIFrameClassName
 320                             ,wxWndProc
 321                             ,CS_SIZEREDRAW | CS_MOVENOTIFY | CS_SYNCPAINT
 322                             ,sizeof(ULONG)
 323                            ))
 324     {
 325         vError = ::WinGetLastError(vHab);
 326         sError = wxPMErrorToStr(vError);
 327         wxLogLastError(sError);
 328         return FALSE;
 329     }
 330
 331     if (!::WinRegisterClass( vHab
 332                             ,wxMDIFrameClassNameNoRedraw
 333                             ,wxWndProc
 334                             ,0
 335                             ,sizeof(ULONG)
 336                            ))
 337     {
 338         vError = ::WinGetLastError(vHab);
 339         sError = wxPMErrorToStr(vError);
 340         wxLogLastError(sError);
 341         return FALSE;
 342     }
 343
 344     if (!::WinRegisterClass( vHab
 345                             ,wxMDIChildFrameClassName
 346                             ,wxWndProc
 347                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_SYNCPAINT | CS_HITTEST
 348                             ,sizeof(ULONG)
 349                            ))
 350     {
 351         vError = ::WinGetLastError(vHab);
 352         sError = wxPMErrorToStr(vError);
 353         wxLogLastError(sError);
 354         return FALSE;
 355     }
 356
 357     if (!::WinRegisterClass( vHab
 358                             ,wxMDIChildFrameClassNameNoRedraw
 359                             ,wxWndProc
 360                             ,CS_HITTEST
 361                             ,sizeof(ULONG)
 362                            ))
 363     {
 364         vError = ::WinGetLastError(vHab);
 365         sError = wxPMErrorToStr(vError);
 366         wxLogLastError(sError);
 367         return FALSE;
 368     }
 369
 370     if (!::WinRegisterClass( vHab
 371                             ,wxPanelClassName
 372                             ,wxWndProc
 373                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_HITTEST | CS_SAVEBITS | CS_SYNCPAINT
 374                             ,sizeof(ULONG)
 375                            ))
 376     {
 377         vError = ::WinGetLastError(vHab);
 378         sError = wxPMErrorToStr(vError);
 379         wxLogLastError(sError);
 380         return FALSE;
 381     }
 382
 383     if (!::WinRegisterClass( vHab
 384                             ,wxCanvasClassName
 385                             ,wxWndProc
 386                             ,CS_SIZEREDRAW | CS_HITTEST | CS_SYNCPAINT
 387                             ,sizeof(ULONG)
 388                            ))
 389     {
 390         vError = ::WinGetLastError(vHab);
 391         sError = wxPMErrorToStr(vError);
 392         wxLogLastError(sError);
 393         return FALSE;
 394     }
 395     if (!::WinRegisterClass( vHab
 396                             ,wxCanvasClassNameNR
 397                             ,wxWndProc
 398                             ,CS_HITTEST | CS_SYNCPAINT
 399                             ,sizeof(ULONG)
 400                            ))
 401     {
 402         vError = ::WinGetLastError(vHab);
 403         sError = wxPMErrorToStr(vError);
 404         wxLogLastError(sError);
 405         return FALSE;
 406     }
 407     return TRUE;
 408 } // end of wxApp::RegisterWindowClasses
 409
 410 //
 411 // Cleans up any wxWindows internal structures left lying around
 412 //
 413 void wxApp::CleanUp()
 414 {
 415     delete[] wxBuffer;
 416     wxBuffer = NULL;
 417
 418     //
 419     // PM-SPECIFIC CLEANUP
 420     //
 421
 422     // wxSetKeyboardHook(FALSE);
 423
 424     if (wxSTD_FRAME_ICON)
 425         ::WinFreeFileIcon(wxSTD_FRAME_ICON);
 426     if (wxSTD_MDICHILDFRAME_ICON)
 427         ::WinFreeFileIcon(wxSTD_MDICHILDFRAME_ICON);
 428     if (wxSTD_MDIPARENTFRAME_ICON)
 429         ::WinFreeFileIcon(wxSTD_MDIPARENTFRAME_ICON);
 430
 431     if (wxDEFAULT_FRAME_ICON)
 432         ::WinFreeFileIcon(wxDEFAULT_FRAME_ICON);
 433     if (wxDEFAULT_MDICHILDFRAME_ICON)
 434         ::WinFreeFileIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 435     if (wxDEFAULT_MDIPARENTFRAME_ICON)
 436         ::WinFreeFileIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 437
 438     if ( wxDisableButtonBrush )
 439     {
 440 // TODO:        ::DeleteObject( wxDisableButtonBrush );
 441     }
 442
 443     if (wxWinHandleList)
 444         delete wxWinHandleList;
 445
 446     // Delete Message queue
 447     if (wxTheApp->m_hMq)
 448         ::WinDestroyMsgQueue(wxTheApp->m_hMq);
 449
 450     wxAppBase::CleanUp();
 451 } // end of wxApp::CleanUp
 452
 453 bool wxApp::OnInitGui()
 454 {
 455     ERRORID                         vError;
 456     wxString                        sError;
 457
 458     if (!wxAppBase::OnInitGui())
 459         return FALSE;
 460
 461     m_hMq = ::WinCreateMsgQueue(vHabmain, 0);
 462     if (!m_hMq)
 463     {
 464         vError = ::WinGetLastError(vHabmain);
 465         sError = wxPMErrorToStr(vError);
 466         wxLogDebug(sError);
 467         return FALSE;
 468     }
 469
 470     return TRUE;
 471 } // end of wxApp::OnInitGui
 472
 473 wxApp::wxApp()
 474 {
 475     argc = 0;
 476     argv = NULL;
 477     m_nPrintMode = wxPRINT_WINDOWS;
 478     m_hMq = 0;
 479     m_maxSocketHandles = 0;
 480     m_maxSocketNr = 0;
 481     m_sockCallbackInfo = 0;
 482 } // end of wxApp::wxApp
 483
 484 wxApp::~wxApp()
 485 {
 486     //
 487     // Delete command-line args
 488     //
 489 #if wxUSE_UNICODE
 490     int                             i;
 491
 492     for (i = 0; i < argc; i++)
 493     {
 494         delete[] argv[i];
 495     }
 496     delete[] argv;
 497 #endif
 498 } // end of wxApp::~wxApp
 499
 500 bool                                gbInOnIdle = FALSE;
 501
 502 void wxApp::OnIdle(
 503   wxIdleEvent&                      rEvent
 504 )
 505 {
 506
 507     //
 508     // Avoid recursion (via ProcessEvent default case)
 509     //
 510     if (gbInOnIdle)
 511         return;
 512
 513     gbInOnIdle = TRUE;
 514
 515     wxAppBase::OnIdle(rEvent);
 516
 517 #if wxUSE_DC_CACHEING
 518     // automated DC cache management: clear the cached DCs and bitmap
 519     // if it's likely that the app has finished with them, that is, we
 520     // get an idle event and we're not dragging anything.
 521     if (!::WinGetKeyState(HWND_DESKTOP, VK_BUTTON1) &&
 522         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON3) &&
 523         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON2))
 524         wxDC::ClearCache();
 525 #endif // wxUSE_DC_CACHEING
 526
 527     gbInOnIdle = FALSE;
 528 } // end of wxApp::OnIdle
 529
 530 void wxApp::OnEndSession(
 531   wxCloseEvent&                     WXUNUSED(rEvent))
 532 {
 533     if (GetTopWindow())
 534         GetTopWindow()->Close(TRUE);
 535 } // end of wxApp::OnEndSession
 536
 537 //
 538 // Default behaviour: close the application with prompts. The
 539 // user can veto the close, and therefore the end session.
 540 //
 541 void wxApp::OnQueryEndSession(
 542   wxCloseEvent&                     rEvent
 543 )
 544 {
 545     if (GetTopWindow())
 546     {
 547         if (!GetTopWindow()->Close(!rEvent.CanVeto()))
 548             rEvent.Veto(TRUE);
 549     }
 550 } // end of wxApp::OnQueryEndSession
 551
 552 //
 553 // Yield to incoming messages
 554 //
 555 bool wxApp::Yield(bool onlyIfNeeded)
 556 {
 557     static bool s_inYield = FALSE;
 558
 559     if ( s_inYield )
 560     {
 561         if ( !onlyIfNeeded )
 562         {
 563             wxFAIL_MSG( _T("wxYield() called recursively") );
 564         }
 565
 566         return FALSE;
 567     }
 568
 569     HAB                             vHab = 0;
 570     QMSG                            vMsg;
 571
 572     //
 573     // Disable log flushing from here because a call to wxYield() shouldn't
 574     // normally result in message boxes popping up &c
 575     //
 576     wxLog::Suspend();
 577
 578     s_inYield = TRUE;
 579
 580     //
 581     // We want to go back to the main message loop
 582     // if we see a WM_QUIT. (?)
 583     //
 584     while (::WinPeekMsg(vHab, &vMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) && vMsg.msg != WM_QUIT)
 585     {
 586 #if wxUSE_THREADS
 587         wxMutexGuiLeaveOrEnter();
 588 #endif // wxUSE_THREADS
 589         if (!wxTheApp->Dispatch())
 590             break;
 591     }
 592     //
 593     // If they are pending events, we must process them.
 594     //
 595     if (wxTheApp)
 596         wxTheApp->ProcessPendingEvents();
 597
 598     HandleSockets();
 599     //
 600     // Let the logs be flashed again
 601     //
 602     wxLog::Resume();
 603     s_inYield = FALSE;
 604     return TRUE;
 605 } // end of wxYield
 606
 607 int wxApp::AddSocketHandler(int handle, int mask,
 608                             void (*callback)(void*), void * gsock)
 609 {
 610     int find;
 611     struct GsocketCallbackInfo
 612         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 613
 614     for (find = 0; find < m_maxSocketHandles; find++)
 615         if (CallbackInfo[find].handle == -1)
 616             break;
 617     if (find == m_maxSocketHandles)
 618     {
 619         // Allocate new memory
 620         m_sockCallbackInfo = realloc(m_sockCallbackInfo,
 621                                      (m_maxSocketHandles+=10)*
 622                                      sizeof(struct GsocketCallbackInfo));
 623         CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 624         for (find = m_maxSocketHandles - 10; find < m_maxSocketHandles; find++)
 625             CallbackInfo[find].handle = -1;
 626         find = m_maxSocketHandles - 10;
 627     }
 628     CallbackInfo[find].proc = callback;
 629     CallbackInfo[find].type = mask;
 630     CallbackInfo[find].handle = handle;
 631     CallbackInfo[find].gsock = gsock;
 632     if (mask & wxSockReadMask)
 633         FD_SET(handle, &m_readfds);
 634     if (mask & wxSockWriteMask)
 635         FD_SET(handle, &m_writefds);
 636     if (handle >= m_maxSocketNr)
 637         m_maxSocketNr = handle + 1;
 638     return find;
 639 }
 640
 641 void wxApp::RemoveSocketHandler(int handle)
 642 {
 643     struct GsocketCallbackInfo
 644         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 645     if (handle < m_maxSocketHandles)
 646     {
 647         if (CallbackInfo[handle].type & wxSockReadMask)
 648             FD_CLR(CallbackInfo[handle].handle, &m_readfds);
 649         if (CallbackInfo[handle].type & wxSockWriteMask)
 650             FD_CLR(CallbackInfo[handle].handle, &m_writefds);
 651         CallbackInfo[handle].handle = -1;
 652     }
 653 }
 654
 655 //-----------------------------------------------------------------------------
 656 // wxWakeUpIdle
 657 //-----------------------------------------------------------------------------
 658
 659 void wxApp::WakeUpIdle()
 660 {
 661     //
 662     // Send the top window a dummy message so idle handler processing will
 663     // start up again.  Doing it this way ensures that the idle handler
 664     // wakes up in the right thread (see also wxWakeUpMainThread() which does
 665     // the same for the main app thread only)
 666     //
 667     wxWindow*                       pTopWindow = wxTheApp->GetTopWindow();
 668
 669     if (pTopWindow)
 670     {
 671         if ( !::WinPostMsg(GetHwndOf(pTopWindow), WM_NULL, (MPARAM)0, (MPARAM)0))
 672         {
 673             //
 674             // Should never happen
 675             //
 676             wxLogLastError("PostMessage(WM_NULL)");
 677         }
 678     }
 679 } // end of wxWakeUpIdle
 680
 681 HAB wxGetInstance()
 682 {
 683     return vHabmain;
 684 }
 685
 686 void wxSetInstance(
 687   HAB                               vHab
 688 )
 689 {
 690     vHabmain = vHab;
 691 }
 692