src/os2/app.cpp

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