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     #include "wx/stdpaths.h"
  37     #include "wx/filename.h"
  38 #endif
  39
  40 #include "wx/log.h"
  41 #include "wx/module.h"
  42
  43 #include "wx/os2/private.h"
  44
  45 #ifdef __EMX__
  46
  47 #include <sys/ioctl.h>
  48 #include <sys/select.h>
  49
  50 #else
  51
  52 #include <nerrno.h>
  53 #include <sys/ioctl.h>
  54 #include <sys/select.h>
  55 #include <sys/time.h>
  56
  57 #endif //
  58
  59 #ifndef __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 extern wxChar*                      wxBuffer;
  85 extern wxList WXDLLEXPORT           wxPendingDelete;
  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(
 264   HAB                               vHab
 265 )
 266 {
 267     ERRORID                         vError = 0L;
 268     wxString                        sError;
 269
 270     if (!::WinRegisterClass( vHab
 271                             ,(PSZ)wxFrameClassName
 272                             ,wxFrameWndProc
 273                             ,CS_SIZEREDRAW | CS_SYNCPAINT
 274                             ,sizeof(ULONG)
 275                            ))
 276     {
 277         vError = ::WinGetLastError(vHab);
 278         sError = wxPMErrorToStr(vError);
 279         wxLogLastError(sError.c_str());
 280         return FALSE;
 281     }
 282
 283     if (!::WinRegisterClass( vHab
 284                             ,(PSZ)wxFrameClassNameNoRedraw
 285                             ,wxWndProc
 286                             ,0
 287                             ,sizeof(ULONG)
 288                            ))
 289     {
 290         vError = ::WinGetLastError(vHab);
 291         sError = wxPMErrorToStr(vError);
 292         wxLogLastError(sError.c_str());
 293         return FALSE;
 294     }
 295
 296     if (!::WinRegisterClass( vHab
 297                             ,(PSZ)wxMDIFrameClassName
 298                             ,wxWndProc
 299                             ,CS_SIZEREDRAW | CS_MOVENOTIFY | CS_SYNCPAINT
 300                             ,sizeof(ULONG)
 301                            ))
 302     {
 303         vError = ::WinGetLastError(vHab);
 304         sError = wxPMErrorToStr(vError);
 305         wxLogLastError(sError.c_str());
 306         return FALSE;
 307     }
 308
 309     if (!::WinRegisterClass( vHab
 310                             ,(PSZ)wxMDIFrameClassNameNoRedraw
 311                             ,wxWndProc
 312                             ,0
 313                             ,sizeof(ULONG)
 314                            ))
 315     {
 316         vError = ::WinGetLastError(vHab);
 317         sError = wxPMErrorToStr(vError);
 318         wxLogLastError(sError.c_str());
 319         return FALSE;
 320     }
 321
 322     if (!::WinRegisterClass( vHab
 323                             ,(PSZ)wxMDIChildFrameClassName
 324                             ,wxWndProc
 325                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_SYNCPAINT | CS_HITTEST
 326                             ,sizeof(ULONG)
 327                            ))
 328     {
 329         vError = ::WinGetLastError(vHab);
 330         sError = wxPMErrorToStr(vError);
 331         wxLogLastError(sError.c_str());
 332         return FALSE;
 333     }
 334
 335     if (!::WinRegisterClass( vHab
 336                             ,(PSZ)wxMDIChildFrameClassNameNoRedraw
 337                             ,wxWndProc
 338                             ,CS_HITTEST
 339                             ,sizeof(ULONG)
 340                            ))
 341     {
 342         vError = ::WinGetLastError(vHab);
 343         sError = wxPMErrorToStr(vError);
 344         wxLogLastError(sError.c_str());
 345         return FALSE;
 346     }
 347
 348     if (!::WinRegisterClass( vHab
 349                             ,(PSZ)wxPanelClassName
 350                             ,wxWndProc
 351                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_HITTEST | CS_SAVEBITS | CS_SYNCPAINT
 352                             ,sizeof(ULONG)
 353                            ))
 354     {
 355         vError = ::WinGetLastError(vHab);
 356         sError = wxPMErrorToStr(vError);
 357         wxLogLastError(sError.c_str());
 358         return FALSE;
 359     }
 360
 361     if (!::WinRegisterClass( vHab
 362                             ,(PSZ)wxCanvasClassName
 363                             ,wxWndProc
 364                             ,CS_SIZEREDRAW | CS_HITTEST | CS_SYNCPAINT
 365                             ,sizeof(ULONG)
 366                            ))
 367     {
 368         vError = ::WinGetLastError(vHab);
 369         sError = wxPMErrorToStr(vError);
 370         wxLogLastError(sError.c_str());
 371         return FALSE;
 372     }
 373     if (!::WinRegisterClass( vHab
 374                             ,(PSZ)wxCanvasClassNameNR
 375                             ,wxWndProc
 376                             ,CS_HITTEST | CS_SYNCPAINT
 377                             ,sizeof(ULONG)
 378                            ))
 379     {
 380         vError = ::WinGetLastError(vHab);
 381         sError = wxPMErrorToStr(vError);
 382         wxLogLastError(sError.c_str());
 383         return FALSE;
 384     }
 385     return TRUE;
 386 } // end of wxApp::RegisterWindowClasses
 387
 388 //
 389 // Cleans up any wxWidgets internal structures left lying around
 390 //
 391 void wxApp::CleanUp()
 392 {
 393     delete[] wxBuffer;
 394     wxBuffer = NULL;
 395
 396     //
 397     // PM-SPECIFIC CLEANUP
 398     //
 399
 400     // wxSetKeyboardHook(FALSE);
 401
 402     if (wxSTD_FRAME_ICON)
 403         ::WinFreeFileIcon(wxSTD_FRAME_ICON);
 404     if (wxSTD_MDICHILDFRAME_ICON)
 405         ::WinFreeFileIcon(wxSTD_MDICHILDFRAME_ICON);
 406     if (wxSTD_MDIPARENTFRAME_ICON)
 407         ::WinFreeFileIcon(wxSTD_MDIPARENTFRAME_ICON);
 408
 409     if (wxDEFAULT_FRAME_ICON)
 410         ::WinFreeFileIcon(wxDEFAULT_FRAME_ICON);
 411     if (wxDEFAULT_MDICHILDFRAME_ICON)
 412         ::WinFreeFileIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 413     if (wxDEFAULT_MDIPARENTFRAME_ICON)
 414         ::WinFreeFileIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 415
 416     if ( wxDisableButtonBrush )
 417     {
 418 // TODO:        ::DeleteObject( wxDisableButtonBrush );
 419     }
 420
 421     delete wxWinHandleHash;
 422     wxWinHandleHash = NULL;
 423
 424     // Delete Message queue
 425     if (wxTheApp->m_hMq)
 426         ::WinDestroyMsgQueue(wxTheApp->m_hMq);
 427
 428     wxAppBase::CleanUp();
 429 } // end of wxApp::CleanUp
 430
 431 bool wxApp::OnInitGui()
 432 {
 433     ERRORID                         vError;
 434     wxString                        sError;
 435
 436     if (!wxAppBase::OnInitGui())
 437         return FALSE;
 438
 439     m_hMq = ::WinCreateMsgQueue(vHabmain, 0);
 440     if (!m_hMq)
 441     {
 442         vError = ::WinGetLastError(vHabmain);
 443         sError = wxPMErrorToStr(vError);
 444         wxLogDebug(sError);
 445         return FALSE;
 446     }
 447
 448     return TRUE;
 449 } // end of wxApp::OnInitGui
 450
 451 wxApp::wxApp()
 452 {
 453     argc = 0;
 454     argv = NULL;
 455     m_nPrintMode = wxPRINT_WINDOWS;
 456     m_hMq = 0;
 457     m_maxSocketHandles = 0;
 458     m_maxSocketNr = 0;
 459     m_sockCallbackInfo = 0;
 460 } // end of wxApp::wxApp
 461
 462 wxApp::~wxApp()
 463 {
 464     //
 465     // Delete command-line args
 466     //
 467 #if wxUSE_UNICODE
 468     int                             i;
 469
 470     for (i = 0; i < argc; i++)
 471     {
 472         delete[] argv[i];
 473     }
 474     delete[] argv;
 475 #endif
 476 } // end of wxApp::~wxApp
 477
 478 bool                                gbInOnIdle = FALSE;
 479
 480 void wxApp::OnIdle(
 481   wxIdleEvent&                      rEvent
 482 )
 483 {
 484
 485     //
 486     // Avoid recursion (via ProcessEvent default case)
 487     //
 488     if (gbInOnIdle)
 489         return;
 490
 491     gbInOnIdle = TRUE;
 492
 493     wxAppBase::OnIdle(rEvent);
 494
 495 #if wxUSE_DC_CACHEING
 496     // automated DC cache management: clear the cached DCs and bitmap
 497     // if it's likely that the app has finished with them, that is, we
 498     // get an idle event and we're not dragging anything.
 499     if (!::WinGetKeyState(HWND_DESKTOP, VK_BUTTON1) &&
 500         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON3) &&
 501         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON2))
 502         wxDC::ClearCache();
 503 #endif // wxUSE_DC_CACHEING
 504
 505     gbInOnIdle = FALSE;
 506 } // end of wxApp::OnIdle
 507
 508 void wxApp::OnEndSession(
 509   wxCloseEvent&                     WXUNUSED(rEvent))
 510 {
 511     if (GetTopWindow())
 512         GetTopWindow()->Close(TRUE);
 513 } // end of wxApp::OnEndSession
 514
 515 //
 516 // Default behaviour: close the application with prompts. The
 517 // user can veto the close, and therefore the end session.
 518 //
 519 void wxApp::OnQueryEndSession(
 520   wxCloseEvent&                     rEvent
 521 )
 522 {
 523     if (GetTopWindow())
 524     {
 525         if (!GetTopWindow()->Close(!rEvent.CanVeto()))
 526             rEvent.Veto(TRUE);
 527     }
 528 } // end of wxApp::OnQueryEndSession
 529
 530 //
 531 // Yield to incoming messages
 532 //
 533 bool wxApp::Yield(bool onlyIfNeeded)
 534 {
 535     static bool s_inYield = FALSE;
 536
 537     if ( s_inYield )
 538     {
 539         if ( !onlyIfNeeded )
 540         {
 541             wxFAIL_MSG( _T("wxYield() called recursively") );
 542         }
 543
 544         return FALSE;
 545     }
 546
 547     HAB                             vHab = 0;
 548     QMSG                            vMsg;
 549
 550     //
 551     // Disable log flushing from here because a call to wxYield() shouldn't
 552     // normally result in message boxes popping up &c
 553     //
 554     wxLog::Suspend();
 555
 556     s_inYield = TRUE;
 557
 558     //
 559     // We want to go back to the main message loop
 560     // if we see a WM_QUIT. (?)
 561     //
 562     while (::WinPeekMsg(vHab, &vMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) && vMsg.msg != WM_QUIT)
 563     {
 564 #if wxUSE_THREADS
 565         wxMutexGuiLeaveOrEnter();
 566 #endif // wxUSE_THREADS
 567         if (!wxTheApp->Dispatch())
 568             break;
 569     }
 570     //
 571     // If they are pending events, we must process them.
 572     //
 573     if (wxTheApp)
 574         wxTheApp->ProcessPendingEvents();
 575
 576     HandleSockets();
 577     //
 578     // Let the logs be flashed again
 579     //
 580     wxLog::Resume();
 581     s_inYield = FALSE;
 582     return TRUE;
 583 } // end of wxYield
 584
 585 int wxApp::AddSocketHandler(int handle, int mask,
 586                             void (*callback)(void*), void * gsock)
 587 {
 588     int find;
 589     struct GsocketCallbackInfo
 590         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 591
 592     for (find = 0; find < m_maxSocketHandles; find++)
 593         if (CallbackInfo[find].handle == -1)
 594             break;
 595     if (find == m_maxSocketHandles)
 596     {
 597         // Allocate new memory
 598         m_sockCallbackInfo = realloc(m_sockCallbackInfo,
 599                                      (m_maxSocketHandles+=10)*
 600                                      sizeof(struct GsocketCallbackInfo));
 601         CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 602         for (find = m_maxSocketHandles - 10; find < m_maxSocketHandles; find++)
 603             CallbackInfo[find].handle = -1;
 604         find = m_maxSocketHandles - 10;
 605     }
 606     CallbackInfo[find].proc = callback;
 607     CallbackInfo[find].type = mask;
 608     CallbackInfo[find].handle = handle;
 609     CallbackInfo[find].gsock = gsock;
 610     if (mask & wxSockReadMask)
 611         FD_SET(handle, &m_readfds);
 612     if (mask & wxSockWriteMask)
 613         FD_SET(handle, &m_writefds);
 614     if (handle >= m_maxSocketNr)
 615         m_maxSocketNr = handle + 1;
 616     return find;
 617 }
 618
 619 void wxApp::RemoveSocketHandler(int handle)
 620 {
 621     struct GsocketCallbackInfo
 622         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 623     if (handle < m_maxSocketHandles)
 624     {
 625         if (CallbackInfo[handle].type & wxSockReadMask)
 626             FD_CLR(CallbackInfo[handle].handle, &m_readfds);
 627         if (CallbackInfo[handle].type & wxSockWriteMask)
 628             FD_CLR(CallbackInfo[handle].handle, &m_writefds);
 629         CallbackInfo[handle].handle = -1;
 630     }
 631 }
 632
 633 //-----------------------------------------------------------------------------
 634 // wxWakeUpIdle
 635 //-----------------------------------------------------------------------------
 636
 637 void wxApp::WakeUpIdle()
 638 {
 639     //
 640     // Send the top window a dummy message so idle handler processing will
 641     // start up again.  Doing it this way ensures that the idle handler
 642     // wakes up in the right thread (see also wxWakeUpMainThread() which does
 643     // the same for the main app thread only)
 644     //
 645     wxWindow*                       pTopWindow = wxTheApp->GetTopWindow();
 646
 647     if (pTopWindow)
 648     {
 649         if ( !::WinPostMsg(GetHwndOf(pTopWindow), WM_NULL, (MPARAM)0, (MPARAM)0))
 650         {
 651             //
 652             // Should never happen
 653             //
 654             wxLogLastError(wxT("PostMessage(WM_NULL)"));
 655         }
 656     }
 657 } // end of wxWakeUpIdle
 658
 659 HAB wxGetInstance()
 660 {
 661     return vHabmain;
 662 }
 663
 664 void wxSetInstance(
 665   HAB                               vHab
 666 )
 667 {
 668     vHabmain = vHab;
 669 }
 670