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/wxprec.h"
  25
  26 #ifdef    __BORLANDC__
  27   #pragma hdrstop
  28 #endif  //__BORLANDC__
  29
  30
  31 #include "wx/app.h"
  32 #include "wx/debug.h"
  33
  34 // ----------------------------------------------------------------------------
  35 // global vars
  36 // ----------------------------------------------------------------------------
  37
  38 wxApp * WXDLLEXPORT wxTheApp = NULL;
  39
  40 wxAppInitializerFunction
  41     wxAppBase::m_appInitFn = (wxAppInitializerFunction)NULL;
  42
  43 #if wxUSE_THREADS
  44     // List of events pending processing
  45     wxList *wxPendingEvents = NULL;
  46     wxCriticalSection *wxPendingEventsLocker = NULL;
  47 #endif // wxUSE_THREADS
  48
  49 // ----------------------------------------------------------------------------
  50 // private classes
  51 // ----------------------------------------------------------------------------
  52
  53 class /* no WXDLLEXPORT */ wxConsoleApp : public wxApp
  54 {
  55 public:
  56     virtual int OnRun() { wxFAIL_MSG(wxT("unreachable")); return 0; }
  57 };
  58
  59 // ----------------------------------------------------------------------------
  60 // private vars
  61 // ----------------------------------------------------------------------------
  62
  63 static size_t gs_nInitCount = 0;
  64
  65 // ============================================================================
  66 // implementation
  67 // ============================================================================
  68
  69 bool WXDLLEXPORT wxInitialize()
  70 {
  71     if ( gs_nInitCount )
  72     {
  73         // already initialized
  74         return TRUE;
  75     }
  76
  77     wxASSERT_MSG( !wxTheApp,
  78                   wxT("either call wxInitialize or create app, not both!") );
  79
  80     wxClassInfo::InitializeClasses();
  81
  82     wxModule::RegisterModules();
  83     if ( !wxModule::InitializeModules() )
  84     {
  85         return FALSE;
  86     }
  87
  88     wxTheApp = new wxConsoleApp;
  89
  90     if ( !wxTheApp )
  91     {
  92         return FALSE;
  93     }
  94
  95     gs_nInitCount++;
  96
  97     return TRUE;
  98 }
  99
 100 void WXDLLEXPORT wxUninitialize()
 101 {
 102     if ( !--gs_nInitCount )
 103     {
 104         wxModule::CleanUpModules();
 105
 106         wxClassInfo::CleanUpClasses();
 107
 108         // delete the application object
 109         delete wxTheApp;
 110         wxTheApp = (wxApp *)NULL;
 111     }
 112 }