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 #include "wx/wxprec.h"
  21
  22 #ifdef    __BORLANDC__
  23   #pragma hdrstop
  24 #endif  //__BORLANDC__
  25
  26 #ifndef WX_PRECOMP
  27     #include "wx/app.h"
  28     #include "wx/debug.h"
  29     #include "wx/module.h"
  30 #endif
  31
  32 // ----------------------------------------------------------------------------
  33 // global vars
  34 // ----------------------------------------------------------------------------
  35
  36 wxApp * WXDLLEXPORT wxTheApp = NULL;
  37
  38 wxAppInitializerFunction
  39     wxAppBase::m_appInitFn = (wxAppInitializerFunction)NULL;
  40
  41 // ----------------------------------------------------------------------------
  42 // private classes
  43 // ----------------------------------------------------------------------------
  44
  45 class /* no WXDLLEXPORT */ wxConsoleApp : public wxApp
  46 {
  47 public:
  48     virtual int OnRun() { wxFAIL_MSG(wxT("unreachable")); return 0; }
  49 };
  50
  51 // ----------------------------------------------------------------------------
  52 // private vars
  53 // ----------------------------------------------------------------------------
  54
  55 static size_t gs_nInitCount = 0;
  56
  57 // ============================================================================
  58 // implementation
  59 // ============================================================================
  60
  61 bool WXDLLEXPORT wxInitialize()
  62 {
  63     if ( gs_nInitCount )
  64     {
  65         // already initialized
  66         return TRUE;
  67     }
  68
  69     wxASSERT_MSG( !wxTheApp,
  70                   wxT("either call wxInitialize or create app, not both!") );
  71
  72     wxClassInfo::InitializeClasses();
  73
  74     wxModule::RegisterModules();
  75     if ( !wxModule::InitializeModules() )
  76     {
  77         return FALSE;
  78     }
  79
  80     wxTheApp = new wxConsoleApp;
  81
  82     if ( !wxTheApp )
  83     {
  84         return FALSE;
  85     }
  86
  87     gs_nInitCount++;
  88
  89     return TRUE;
  90 }
  91
  92 void WXDLLEXPORT wxUninitialize()
  93 {
  94     if ( !--gs_nInitCount )
  95     {
  96         wxModule::CleanUpModules();
  97
  98         wxClassInfo::CleanUpClasses();
  99
 100         // delete the application object
 101         delete wxTheApp;
 102         wxTheApp = (wxApp *)NULL;
 103     }
 104 }