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