src/common/module.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        module.cpp
   3 // Purpose:     Modules initialization/destruction
   4 // Author:      Wolfram Gloger/adapted by Guilhem Lavaux
   5 // Modified by:
   6 // Created:     04/11/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Wolfram Gloger and Guilhem Lavaux
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #include "wx/module.h"
  20 #include "wx/hash.h"
  21 #include "wx/intl.h"
  22 #include "wx/log.h"
  23 #include "wx/listimpl.cpp"
  24
  25 WX_DEFINE_LIST(wxModuleList)
  26
  27 IMPLEMENT_CLASS(wxModule, wxObject)
  28
  29 wxModuleList wxModule::m_modules;
  30
  31 void wxModule::RegisterModule(wxModule* module)
  32 {
  33     m_modules.Append(module);
  34 }
  35
  36 void wxModule::UnregisterModule(wxModule* module)
  37 {
  38     m_modules.DeleteObject(module);
  39     delete module;
  40 }
  41
  42 // Collect up all module-derived classes, create an instance of each,
  43 // and register them.
  44 void wxModule::RegisterModules()
  45 {
  46     wxHashTable::compatibility_iterator node;
  47     wxClassInfo* classInfo;
  48
  49     wxClassInfo::sm_classTable->BeginFind();
  50     node = wxClassInfo::sm_classTable->Next();
  51     while (node)
  52     {
  53         classInfo = (wxClassInfo *)node->GetData();
  54         if ( classInfo->IsKindOf(CLASSINFO(wxModule)) &&
  55             (classInfo != (& (wxModule::ms_classInfo))) )
  56         {
  57             wxModule* module = (wxModule *)classInfo->CreateObject();
  58             RegisterModule(module);
  59         }
  60         node = wxClassInfo::sm_classTable->Next();
  61     }
  62 }
  63
  64 bool wxModule::InitializeModules()
  65 {
  66     // Initialize user-defined modules
  67     wxModuleList::compatibility_iterator node;
  68     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
  69     {
  70         wxModule *module = node->GetData();
  71         if ( !module->Init() )
  72         {
  73             wxLogError(_("Module \"%s\" initialization failed"),
  74                        module->GetClassInfo()->GetClassName());
  75
  76             // clean up already initialized modules - process in reverse order
  77             wxModuleList::compatibility_iterator n;
  78             for ( n = node->GetPrevious(); n; n = n->GetPrevious() )
  79             {
  80                 n->GetData()->OnExit();
  81             }
  82
  83             return false;
  84         }
  85     }
  86
  87     return true;
  88 }
  89
  90 void wxModule::CleanUpModules()
  91 {
  92     // Cleanup user-defined modules
  93     wxModuleList::compatibility_iterator node;
  94     for ( node = m_modules.GetFirst(); node; node = node->GetNext() )
  95     {
  96         node->GetData()->Exit();
  97     }
  98
  99     WX_CLEAR_LIST(wxModuleList, m_modules);
 100 }
 101