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 // ----------------------------------------------------------------------------
  64 // stubs for some GUI functions
  65 // ----------------------------------------------------------------------------
  66
  67 void WXDLLEXPORT wxExit()
  68 {
  69     abort();
  70 }
  71
  72 // Yield to other apps/messages
  73 bool WXDLLEXPORT wxYield()
  74 {
  75     // do nothing
  76     return TRUE;
  77 }
  78
  79 // Yield to other apps/messages
  80 void WXDLLEXPORT wxWakeUpIdle()
  81 {
  82     // do nothing
  83 }
  84
  85 // ----------------------------------------------------------------------------
  86 // wxBase-specific functions
  87 // ----------------------------------------------------------------------------
  88
  89 bool WXDLLEXPORT wxInitialize()
  90 {
  91     if ( gs_nInitCount )
  92     {
  93         // already initialized
  94         return TRUE;
  95     }
  96
  97     wxASSERT_MSG( !wxTheApp,
  98                   wxT("either call wxInitialize or create app, not both!") );
  99
 100     wxClassInfo::InitializeClasses();
 101
 102     wxModule::RegisterModules();
 103     if ( !wxModule::InitializeModules() )
 104     {
 105         return FALSE;
 106     }
 107
 108     wxTheApp = new wxConsoleApp;
 109
 110     if ( !wxTheApp )
 111     {
 112         return FALSE;
 113     }
 114
 115     gs_nInitCount++;
 116
 117     return TRUE;
 118 }
 119
 120 void WXDLLEXPORT wxUninitialize()
 121 {
 122     if ( !--gs_nInitCount )
 123     {
 124         wxModule::CleanUpModules();
 125
 126         wxClassInfo::CleanUpClasses();
 127
 128         // delete the application object
 129         delete wxTheApp;
 130         wxTheApp = (wxApp *)NULL;
 131     }
 132 }