src/common/init.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        common/init.cpp
   3 // Purpose:     initialisation for the library
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     04.10.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "appbase.h"
  22 #endif
  23
  24 #include "wx/app.h"
  25 #include "wx/debug.h"
  26
  27 // ----------------------------------------------------------------------------
  28 // global vars
  29 // ----------------------------------------------------------------------------
  30
  31 wxApp * WXDLLEXPORT wxTheApp = NULL;
  32
  33 wxAppInitializerFunction
  34     wxAppBase::m_appInitFn = (wxAppInitializerFunction)NULL;
  35
  36 #if wxUSE_THREADS
  37     // List of events pending processing
  38     wxList *wxPendingEvents = NULL;
  39     wxCriticalSection *wxPendingEventsLocker = NULL;
  40 #endif // wxUSE_THREADS
  41
  42 // ----------------------------------------------------------------------------
  43 // private classes
  44 // ----------------------------------------------------------------------------
  45
  46 class /* no WXDLLEXPORT */ wxConsoleApp : public wxApp
  47 {
  48 public:
  49     virtual int OnRun() { wxFAIL_MSG(wxT("unreachable")); return 0; }
  50 };
  51
  52 // ----------------------------------------------------------------------------
  53 // private vars
  54 // ----------------------------------------------------------------------------
  55
  56 static size_t gs_nInitCount = 0;
  57
  58 // ============================================================================
  59 // implementation
  60 // ============================================================================
  61
  62 bool WXDLLEXPORT wxInitialize()
  63 {
  64     if ( gs_nInitCount )
  65     {
  66         // already initialized
  67         return TRUE;
  68     }
  69
  70     wxASSERT_MSG( !wxTheApp,
  71                   wxT("either call wxInitialize or create app, not both!") );
  72
  73     wxClassInfo::InitializeClasses();
  74
  75     wxModule::RegisterModules();
  76     if ( !wxModule::InitializeModules() )
  77     {
  78         return FALSE;
  79     }
  80
  81     wxTheApp = new wxConsoleApp;
  82
  83     if ( !wxTheApp )
  84     {
  85         return FALSE;
  86     }
  87
  88     gs_nInitCount++;
  89
  90     return TRUE;
  91 }
  92
  93 void WXDLLEXPORT wxUninitialize()
  94 {
  95     if ( !--gs_nInitCount )
  96     {
  97         wxModule::CleanUpModules();
  98
  99         wxClassInfo::CleanUpClasses();
 100
 101         // delete the application object
 102         delete wxTheApp;
 103         wxTheApp = (wxApp *)NULL;
 104     }
 105 }