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     //    wxRedirectIOToConsole();
 239
 240     wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
 241
 242     // This is to foil optimizations in Visual C++ that throw out dummy.obj.
 243     // PLEASE DO NOT ALTER THIS.
 244 #if !defined(WXMAKINGDLL) && defined(__VISAGECPP__)
 245     extern char wxDummyChar;
 246     if (wxDummyChar) wxDummyChar++;
 247 #endif
 248
 249     // wxSetKeyboardHook(TRUE);
 250
 251     RegisterWindowClasses(vHabmain);
 252
 253     return true;
 254 } // end of wxApp::Initialize
 255
 256 const char*                         CANTREGISTERCLASS = " Can't register Class ";
 257 // ---------------------------------------------------------------------------
 258 // RegisterWindowClasses
 259 // ---------------------------------------------------------------------------
 260
 261 bool wxApp::RegisterWindowClasses( HAB vHab )
 262 {
 263     ERRORID vError = 0L;
 264     wxString sError;
 265
 266     if (!::WinRegisterClass( vHab
 267                             ,(PSZ)wxFrameClassName
 268                             ,wxFrameWndProc
 269                             ,CS_SIZEREDRAW | CS_SYNCPAINT
 270                             ,sizeof(ULONG)
 271                            ))
 272     {
 273         vError = ::WinGetLastError(vHab);
 274         sError = wxPMErrorToStr(vError);
 275         wxLogLastError(sError.c_str());
 276         return false;
 277     }
 278
 279     if (!::WinRegisterClass( vHab
 280                             ,(PSZ)wxFrameClassNameNoRedraw
 281                             ,wxWndProc
 282                             ,0
 283                             ,sizeof(ULONG)
 284                            ))
 285     {
 286         vError = ::WinGetLastError(vHab);
 287         sError = wxPMErrorToStr(vError);
 288         wxLogLastError(sError.c_str());
 289         return false;
 290     }
 291
 292     if (!::WinRegisterClass( vHab
 293                             ,(PSZ)wxMDIFrameClassName
 294                             ,wxWndProc
 295                             ,CS_SIZEREDRAW | CS_MOVENOTIFY | CS_SYNCPAINT
 296                             ,sizeof(ULONG)
 297                            ))
 298     {
 299         vError = ::WinGetLastError(vHab);
 300         sError = wxPMErrorToStr(vError);
 301         wxLogLastError(sError.c_str());
 302         return false;
 303     }
 304
 305     if (!::WinRegisterClass( vHab
 306                             ,(PSZ)wxMDIFrameClassNameNoRedraw
 307                             ,wxWndProc
 308                             ,0
 309                             ,sizeof(ULONG)
 310                            ))
 311     {
 312         vError = ::WinGetLastError(vHab);
 313         sError = wxPMErrorToStr(vError);
 314         wxLogLastError(sError.c_str());
 315         return false;
 316     }
 317
 318     if (!::WinRegisterClass( vHab
 319                             ,(PSZ)wxMDIChildFrameClassName
 320                             ,wxWndProc
 321                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_SYNCPAINT | CS_HITTEST
 322                             ,sizeof(ULONG)
 323                            ))
 324     {
 325         vError = ::WinGetLastError(vHab);
 326         sError = wxPMErrorToStr(vError);
 327         wxLogLastError(sError.c_str());
 328         return false;
 329     }
 330
 331     if (!::WinRegisterClass( vHab
 332                             ,(PSZ)wxMDIChildFrameClassNameNoRedraw
 333                             ,wxWndProc
 334                             ,CS_HITTEST
 335                             ,sizeof(ULONG)
 336                            ))
 337     {
 338         vError = ::WinGetLastError(vHab);
 339         sError = wxPMErrorToStr(vError);
 340         wxLogLastError(sError.c_str());
 341         return false;
 342     }
 343
 344     if (!::WinRegisterClass( vHab
 345                             ,(PSZ)wxPanelClassName
 346                             ,wxWndProc
 347                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_HITTEST | CS_SAVEBITS | CS_SYNCPAINT
 348                             ,sizeof(ULONG)
 349                            ))
 350     {
 351         vError = ::WinGetLastError(vHab);
 352         sError = wxPMErrorToStr(vError);
 353         wxLogLastError(sError.c_str());
 354         return false;
 355     }
 356
 357     if (!::WinRegisterClass( vHab
 358                             ,(PSZ)wxCanvasClassName
 359                             ,wxWndProc
 360                             ,CS_SIZEREDRAW | CS_HITTEST | CS_SYNCPAINT
 361                             ,sizeof(ULONG)
 362                            ))
 363     {
 364         vError = ::WinGetLastError(vHab);
 365         sError = wxPMErrorToStr(vError);
 366         wxLogLastError(sError.c_str());
 367         return false;
 368     }
 369     if (!::WinRegisterClass( vHab
 370                             ,(PSZ)wxCanvasClassNameNR
 371                             ,wxWndProc
 372                             ,CS_HITTEST | CS_SYNCPAINT
 373                             ,sizeof(ULONG)
 374                            ))
 375     {
 376         vError = ::WinGetLastError(vHab);
 377         sError = wxPMErrorToStr(vError);
 378         wxLogLastError(sError.c_str());
 379         return false;
 380     }
 381     return true;
 382 } // end of wxApp::RegisterWindowClasses
 383
 384 //
 385 // Cleans up any wxWidgets internal structures left lying around
 386 //
 387 void wxApp::CleanUp()
 388 {
 389     wxDELETEA(wxBuffer);
 390
 391     //
 392     // PM-SPECIFIC CLEANUP
 393     //
 394
 395     // wxSetKeyboardHook(false);
 396
 397     if (wxSTD_FRAME_ICON)
 398         ::WinFreeFileIcon(wxSTD_FRAME_ICON);
 399     if (wxSTD_MDICHILDFRAME_ICON)
 400         ::WinFreeFileIcon(wxSTD_MDICHILDFRAME_ICON);
 401     if (wxSTD_MDIPARENTFRAME_ICON)
 402         ::WinFreeFileIcon(wxSTD_MDIPARENTFRAME_ICON);
 403
 404     if (wxDEFAULT_FRAME_ICON)
 405         ::WinFreeFileIcon(wxDEFAULT_FRAME_ICON);
 406     if (wxDEFAULT_MDICHILDFRAME_ICON)
 407         ::WinFreeFileIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 408     if (wxDEFAULT_MDIPARENTFRAME_ICON)
 409         ::WinFreeFileIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 410
 411     if ( wxDisableButtonBrush )
 412     {
 413 // TODO:        ::DeleteObject( wxDisableButtonBrush );
 414     }
 415
 416     wxDELETE(wxWinHandleHash);
 417
 418     // Delete Message queue
 419     if (wxTheApp->m_hMq)
 420         ::WinDestroyMsgQueue(wxTheApp->m_hMq);
 421
 422     wxAppBase::CleanUp();
 423 } // end of wxApp::CleanUp
 424
 425 bool wxApp::OnInitGui()
 426 {
 427     ERRORID vError;
 428     wxString sError;
 429
 430     if (!wxAppBase::OnInitGui())
 431         return false;
 432
 433     m_hMq = ::WinCreateMsgQueue(vHabmain, 0);
 434     if (!m_hMq)
 435     {
 436         vError = ::WinGetLastError(vHabmain);
 437         sError = wxPMErrorToStr(vError);
 438         wxLogDebug(sError);
 439         return false;
 440     }
 441
 442     return true;
 443 } // end of wxApp::OnInitGui
 444
 445 wxApp::wxApp()
 446 {
 447     m_nPrintMode = wxPRINT_WINDOWS;
 448     m_hMq = 0;
 449     m_maxSocketHandles = 0;
 450     m_maxSocketNr = 0;
 451     m_sockCallbackInfo = 0;
 452 } // end of wxApp::wxApp
 453
 454 wxApp::~wxApp()
 455 {
 456 } // end of wxApp::~wxApp
 457
 458 bool gbInOnIdle = false;
 459
 460 void wxApp::OnIdle( wxIdleEvent& WXUNUSED(rEvent) )
 461 {
 462     //
 463     // Avoid recursion (via ProcessEvent default case)
 464     //
 465     if (gbInOnIdle)
 466         return;
 467
 468     gbInOnIdle = true;
 469
 470 #if wxUSE_DC_CACHEING
 471     // automated DC cache management: clear the cached DCs and bitmap
 472     // if it's likely that the app has finished with them, that is, we
 473     // get an idle event and we're not dragging anything.
 474     if (!::WinGetKeyState(HWND_DESKTOP, VK_BUTTON1) &&
 475         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON3) &&
 476         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON2))
 477         wxDC::ClearCache();
 478 #endif // wxUSE_DC_CACHEING
 479
 480     gbInOnIdle = false;
 481 } // end of wxApp::OnIdle
 482
 483 void wxApp::OnEndSession(
 484   wxCloseEvent&                     WXUNUSED(rEvent))
 485 {
 486     if (GetTopWindow())
 487         GetTopWindow()->Close(true);
 488 } // end of wxApp::OnEndSession
 489
 490 //
 491 // Default behaviour: close the application with prompts. The
 492 // user can veto the close, and therefore the end session.
 493 //
 494 void wxApp::OnQueryEndSession( wxCloseEvent& rEvent )
 495 {
 496     if (GetTopWindow())
 497     {
 498         if (!GetTopWindow()->Close(!rEvent.CanVeto()))
 499             rEvent.Veto(true);
 500     }
 501 } // end of wxApp::OnQueryEndSession
 502
 503 int wxApp::AddSocketHandler(int handle, int mask,
 504                             void (*callback)(void*), void * gsock)
 505 {
 506     int find;
 507     struct GsocketCallbackInfo
 508         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 509
 510     for (find = 0; find < m_maxSocketHandles; find++)
 511         if (CallbackInfo[find].handle == -1)
 512             break;
 513     if (find == m_maxSocketHandles)
 514     {
 515         // Allocate new memory
 516         m_sockCallbackInfo = realloc(m_sockCallbackInfo,
 517                                      (m_maxSocketHandles+=10)*
 518                                      sizeof(struct GsocketCallbackInfo));
 519         CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 520         for (find = m_maxSocketHandles - 10; find < m_maxSocketHandles; find++)
 521             CallbackInfo[find].handle = -1;
 522         find = m_maxSocketHandles - 10;
 523     }
 524     CallbackInfo[find].proc = callback;
 525     CallbackInfo[find].type = mask;
 526     CallbackInfo[find].handle = handle;
 527     CallbackInfo[find].gsock = gsock;
 528     if (mask & wxSockReadMask)
 529         FD_SET(handle, &m_readfds);
 530     if (mask & wxSockWriteMask)
 531         FD_SET(handle, &m_writefds);
 532     if (handle >= m_maxSocketNr)
 533         m_maxSocketNr = handle + 1;
 534     return find;
 535 }
 536
 537 void wxApp::RemoveSocketHandler(int handle)
 538 {
 539     struct GsocketCallbackInfo
 540         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 541     if (handle < m_maxSocketHandles)
 542     {
 543         if (CallbackInfo[handle].type & wxSockReadMask)
 544             FD_CLR(CallbackInfo[handle].handle, &m_readfds);
 545         if (CallbackInfo[handle].type & wxSockWriteMask)
 546             FD_CLR(CallbackInfo[handle].handle, &m_writefds);
 547         CallbackInfo[handle].handle = -1;
 548     }
 549 }
 550
 551 //-----------------------------------------------------------------------------
 552 // wxWakeUpIdle
 553 //-----------------------------------------------------------------------------
 554
 555 void wxApp::WakeUpIdle()
 556 {
 557     //
 558     // Send the top window a dummy message so idle handler processing will
 559     // start up again.  Doing it this way ensures that the idle handler
 560     // wakes up in the right thread (see also wxWakeUpMainThread() which does
 561     // the same for the main app thread only)
 562     //
 563     wxWindow*                       pTopWindow = wxTheApp->GetTopWindow();
 564
 565     if (pTopWindow)
 566     {
 567         if ( !::WinPostMsg(GetHwndOf(pTopWindow), WM_NULL, (MPARAM)0, (MPARAM)0))
 568         {
 569             //
 570             // Should never happen
 571             //
 572             wxLogLastError(wxT("PostMessage(WM_NULL)"));
 573         }
 574     }
 575 } // end of wxWakeUpIdle
 576
 577 HAB wxGetInstance()
 578 {
 579     return vHabmain;
 580 }
 581
 582 void wxSetInstance( HAB vHab )
 583 {
 584     vHabmain = vHab;
 585 }