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