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